WO2003019099A1 - Latent heat accumulator unit with a stopping device for substantially preventing a flow - Google Patents
Latent heat accumulator unit with a stopping device for substantially preventing a flow Download PDFInfo
- Publication number
- WO2003019099A1 WO2003019099A1 PCT/EP2001/009801 EP0109801W WO03019099A1 WO 2003019099 A1 WO2003019099 A1 WO 2003019099A1 EP 0109801 W EP0109801 W EP 0109801W WO 03019099 A1 WO03019099 A1 WO 03019099A1
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- WO
- WIPO (PCT)
- Prior art keywords
- latent heat
- heat storage
- storage unit
- unit according
- line
- Prior art date
Links
- 238000005338 heat storage Methods 0.000 claims description 66
- 238000000605 extraction Methods 0.000 claims description 31
- 238000000926 separation method Methods 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 13
- 235000017281 sodium acetate Nutrition 0.000 description 13
- 239000001632 sodium acetate Substances 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 238000005070 sampling Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000002199 base oil Substances 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 salt hydrates Chemical class 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/025—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being in direct contact with a heat-exchange medium or with another heat storage material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Definitions
- the invention relates to a latent heat storage unit, in particular for transporting heat, a line which can be used here and a separating attachment, and a separation method according to the features of claims 1, 15, 16 and 17.
- the starting point of the invention is a latent heat storage device according to FIG. 1.
- the latent heat storage unit 1 comprises, as essential components, the storage container 7, in which two immiscible heat transfer media have been introduced.
- On the one hand there is a heat transfer oil 10 and a latent heat storage medium in the form of a salt hydrate or metal hydrate 2.
- In the interior of the storage container 7 there is also a heat transfer circuit.
- this includes a circulation pump 4, a heat exchanger 8, a feed system or feed pipes 9 and a removal line 5.
- the functional principle of the latent heat storage unit is essentially based on the fact that e.g. in the charged state of the
- the heat transfer oil 10 from the expansion space 3 with the help of Pump 4 is pumped via the heat exchanger 8 and the pipes 9 into the bottom region of the storage container 7. From there, the 01, due to its lower density in droplet form, rises through the liquid storage medium upwards into the expansion space 3, where a collecting layer forms above the storage medium 2. As it passes through the latent heat storage medium 11, the tragerol 10 absorbs thermal energy. The heat transfer medium 10 charged in this way can then be pumped via the extraction line 5 and the pump 4 to the heat exchanger 8, from where the extraction or. Charge line 6, the heat can be dissipated.
- the problem area in the practical operation of the above-described heat circuit has been found to be the transition area of the heat carrier oil into the extraction line 5. It has so far emerged that if the
- Latent heat storage unit is in particular not only operated stationary, but as a portable latent heat storage that parts of the salt hydrate 2 get into the removal line 5 during the transport and in this way contaminate the heat transfer medium circuit and thus permanently disrupt the operation of the latent heat storage unit.
- the operation i.e. For example, the supply of a warm motor with thermal energy, which is not possible due to the increased carry-over of salt hydrate during transport.
- Heat carrier oil circuit 10 in the latent heat storage unit occurs less acutely in purely stationary operation, but it should not be neglected there either in the medium term.
- the object of the invention is therefore to prevent the latent heat storage medium from being carried over into the heat cycle.
- Latent heat storage unit according to the features of claim 1.
- a latent heat storage unit in particular for transporting heat, is provided, in which a storage container is filled with a latent heat storage medium.
- the latent heat storage unit further includes a heat circuit for supplying and removing a heat transfer medium with respect to the
- Latent heat storage medium which comprises a supply and a discharge system, which includes a removal line which has at least one opening for receiving the from the
- shut-off line is essentially a shut-off device Recording and / or delivery blocking of the latent heat storage medium and / or the heat transfer medium is assigned. This has the consequence that for the first time the latent heat storage medium is dragged into the heat cycle of the latent heat storage unit or the
- Extraction line can be prevented during the transport and / or operation of the storage unit.
- the shut-off device in an advantageous further development of the subject matter of the invention further comprises a so-called pipe-in-pipe system.
- this has a second line or pipeline that can be displaced and / or rotated in the extraction line.
- the extraction line and the second line each have delivery openings on the circumference.
- the openings of the extraction line and the second line are arranged at corresponding positions on the circumference. In this way it is most advantageously ensured that the two pipes, i.e. the sampling line and the second line can be shifted against each other so that the respective openings lie one above the other.
- the second line located in the extraction line can also be moved in such a way that the openings of the extraction line are closed.
- the locking position described last is particularly suitable for the transport of the
- Latent heat storage unit since parts of the latent heat storage medium are prevented from spilling over into the removal line due to the closure of the removal line or are made impossible.
- a further advantageous embodiment of the pipe-in-pipe system can also consist in the fact that not the second line can be displaced and / or in the extraction line is rotatably arranged, but the second line slides over the extraction line.
- the shut-off device according to the invention essentially comprises a rotary slide device for blocking reception and / or delivery.
- the rotary slide device is rotatably mounted in the extraction line.
- the rotary slide device according to the invention can have one or more shut-off bodies, with the aid of which the opening or the openings in the removal line can be closed by rotating the rotary slide device. Wherein in a further position with rotation of the rotary slide device, the openings of the extraction line can in turn be opened to promote the Warmetr germ medium.
- a separation attachment is assigned to the opening or openings of the extraction line or the shut-off body.
- Extraction line essentially to prevent part of the latent heat storage medium from entering the heat cycle or the extraction line, and this is highly advantageous even during the transport of the latent heat storage unit.
- the separating attachment has a tear-off edge for separating the two media.
- the latent heat storage medium entrained or flowing along with the heat transfer medium during operation of the latent heat storage unit is essentially turbulently released from the heat transfer medium and falls back into the storage container.
- the separating attachment comprises a channel-shaped structure, one or more opening openings being located on the bottom of the channel and the tear-off edges according to the invention being formed on the edges of the channel.
- Demand openings attached to the sampling line in such a way that they are located on the circumferential side of the sampling line facing away from the latent heat storage medium.
- shut-off device according to the invention is not only used as such, but in combination with one another depending on the application.
- Good heat storage media are, for example, metal hydrates or salt hydrates.
- Technical white oil is particularly suitable as a heat transfer medium. But this media combination also has Advantages with regard to the separation of the media provided for in the context of the invention in the event of a potential transition into the extraction line. It should be emphasized in particular that salt hydrates have a significantly higher density even in the liquid state, but are less viscous than technical white oil. This physical property, among others, is the reason for the different flow behavior of metal hydrates compared to white oil.
- the tear-off edge according to the invention is designed in such a way that the possibly suspending edge
- Latent heat storage medium or salt hydrate is essentially turbulently extracted from this or separated from it and falls back into the storage medium reservoir.
- the invention relates to the shut-off and / or separation of the latent heat storage medium and / or the heat transfer medium ', not only to a latent heat storage unit as such but also to a pipeline in which the devices shown above can be used and which are also used in corresponding other applications can be used.
- the invention relates to a separating attachment according to the above explanations by means of which a separation between suspending media is possible.
- the scope of the invention also includes a method for separating a suspension, which can be used in particular in devices which correspond to those described above and in which the suspension is initially in a region of an opening in a tube is required, a tear-off edge being arranged at the opening in such a way that at least one part of the suspension is separated from the other at least substantially turbulently at the tear-off edge.
- Fig. 1 is a schematic representation of a
- FIGS. 2a + 2b show a first and a second variant of a pipe-in-pipe shut-off device
- FIG. 3 shows a rotary slide device which is arranged in a removal line to shut off opening claims, Abscheideaufsatz.
- FIG 5 shows a cross section through a latent heat storage unit equipped with a separation attachment according to the invention.
- a tube-in-tube system can be seen in each of FIGS. 2a and 2b, in which the openings of one tube through the
- Moving the openings of the other tube can be closed or opened.
- FIG. 2a shows an inner tube 11 with openings 13 and an outer tube 12 with openings 14.
- the respective openings 13 and 14 are introduced into the jacket of the tubes 11 and 12.
- the openings 13 and 14 are on a line and have the same distance from one another.
- the size of the openings of the inner tube and the outer tube are approximately the same.
- a slide 16 is attached to the end 15 protruding from the outer tube 12. Between the outer tube and the inner tube there are sealing rings (not shown) in which the inner tube is mounted so that it can slide. With the aid of the slide 16, the inner tube 11 can either be moved back and forth in the direction of arrow 17 and / or in
- Arrow direction 18 can be rotated in the outer tube.
- the opening 14 of the outer tube 12 can either be opened or closed.
- a locking device (not shown) for locking the inner tube 11 with respect to the outer tube 12 is of course also provided according to the invention. With the aid of this pipe-in-pipe system, it can be prevented, in particular during transport, that salt hydrate reaches the removal line and thus the heating circuit through the opening 14 of the outer pipe 12.
- FIG. 3 shows a rotary slide device 17 which is rotatably arranged within a removal line provided with openings 18 and 19.
- the rotary slide device comprises at its ends 20 and 21 shut-off bodies, the shape of which rests on the inner surface of the Tapping line are adapted and which can close the openings 18 and 19 by rotating the rotary slide device. In this way, too, it can be prevented, in particular when the latent heat storage unit according to the invention is being transported, that parts of the latent heat storage medium get into the extraction line.
- FIG. 4 shows a further possibility of how, in particular, it can be prevented that salt hydrate 2 is prevented, especially during operation of the latent heat storage unit
- FIG. 2 shows a cross section of a removal line 5 (FIG. 1), in which an opening 22 or a plurality of openings 22 is inserted
- Separator attachment is molded.
- the separating attachment 23 has a groove-like shape, the opening 22 being located at the bottom of the groove.
- the separating attachment 23 can either be individually assigned to the individual openings in a defined dimension or can extend over all openings in the extraction line and thereby include all opening requirements of the extraction line.
- the side regions of the channel 24 have edges 25 which are bent outwards. According to the invention, these edges 25 form so-called tear-off edges on which the salt hydrate, which may be required during operation of the storage unit, is separated from 01 10 (FIG. 1), ie from the heat transfer medium.
- the principle of the separation between the heat transfer oil and a salt hydrate such as sodium acetate is essentially based on the fact that the sodium acetate shows a different flow behavior compared to the 01. The reason for this is that, for example, sodium acetate has a higher density than 01 has, but is less viscous.
- FIG. 5 also shows the position of the opening 22 or the separating attachment 23 with respect to the sodium acetate reservoir. It can be seen that the opening 22 faces away from the sodium acetate
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Latentwarmespeichereinheit mit eimem Äbsperrorgan zum im wesentlichen Forder-ÄbsperrenLatent heat storage unit with a Äbsemrorrororgan for essentially demands-Äbsperreper
Beschreibungdescription
Die Erfindung betrifft eine Latentwarmespeichereinheit, insbesondere zum Transport von Warme, eine hierbei einsetzbare Leitung und einen Abscheideaufsatz, sowie ein Trennverfahren gemäß den Merkmalen der Ansprüche 1, 15, 16 und 17.The invention relates to a latent heat storage unit, in particular for transporting heat, a line which can be used here and a separating attachment, and a separation method according to the features of claims 1, 15, 16 and 17.
Ausgangspunkt der Erfindung ist ein Latentwarmespeicher gemäß Figur 1. Die Latentwarmespeichereinheit 1 umfasst als wesentliche Bestandteile den Speicherbehalter 7, in dem zwei nicht durchmischbare Warmetragermedien eingebracht wurden. Dabei handelt es sich zum einen um ein Wärmetragerol 10 und um ein Latentwarmespeichermedium in Form eines Salzhydrats bzw. Metallhydrats 2. Im Inneren des Speicherbehalters 7 befindet sich ferner ein Warmetragerkreislauf. Dieser umfasst neben einem Oleiniauf mit Schwimmer (nicht dargestellt) eine Umwälzpumpe 4, einen Wärmetauscher 8, ein Zufuhrsystem bzw. Zufuhrrohre 9 und eine Entnahmeleitung 5. Das Funktionsprinzip der Latentwarmespeichereinheit basiert im wesentlichen darauf, dass z.B. im geladenen Zustand desThe starting point of the invention is a latent heat storage device according to FIG. 1. The latent heat storage unit 1 comprises, as essential components, the storage container 7, in which two immiscible heat transfer media have been introduced. On the one hand, there is a heat transfer oil 10 and a latent heat storage medium in the form of a salt hydrate or metal hydrate 2. In the interior of the storage container 7 there is also a heat transfer circuit. In addition to an oil tank with a float (not shown), this includes a circulation pump 4, a heat exchanger 8, a feed system or feed pipes 9 and a removal line 5. The functional principle of the latent heat storage unit is essentially based on the fact that e.g. in the charged state of the
Speichers, d.h. in der flussigen Phase des Salzhydrats 2 das Wärmetragerol 10 aus dem Ausdehnungsraum 3 mit Hilfe der Pumpe 4 über den Wärmetauscher 8 und den Rohrleitungen 9 in den Bodenbereich des Speicherbehalters 7 gepumpt wird. Von dort aus steigt das 01, aufgrund seiner geringeren Dichte in Tropfenform durch das flussige Speichermedium hindurch nach oben in den Ausdehnungsraum 3, wo sich eine Sammelschicht oberhalb des Speichermediums 2 ausbildet. Beim Durchgang durch das Latentwarmespeichermedium 11 nimmt das Tragerol 10 Wärmeenergie auf. Das so aufgeladene Warmetragermedium 10 kann dann über die Entnahmeleitung 5 und die Pumpe 4 zum Wärmetauscher 8 gepumpt werden, von wo aus über die Entnahmebzw. Ladeleitung 6 die Wärme abgeführt werden kann.Storage, ie in the liquid phase of the salt hydrate 2, the heat transfer oil 10 from the expansion space 3 with the help of Pump 4 is pumped via the heat exchanger 8 and the pipes 9 into the bottom region of the storage container 7. From there, the 01, due to its lower density in droplet form, rises through the liquid storage medium upwards into the expansion space 3, where a collecting layer forms above the storage medium 2. As it passes through the latent heat storage medium 11, the tragerol 10 absorbs thermal energy. The heat transfer medium 10 charged in this way can then be pumped via the extraction line 5 and the pump 4 to the heat exchanger 8, from where the extraction or. Charge line 6, the heat can be dissipated.
Als Problemstelle hat sich beim praktischen Betrieb des oben beschriebenen Warmekreislaufes der Ubergangsbereich des Warmetragerols in die Entnahmeleitung 5 herausgestellt. Es hat sich insoweit ergeben, dass wenn dieThe problem area in the practical operation of the above-described heat circuit has been found to be the transition area of the heat carrier oil into the extraction line 5. It has so far emerged that if the
Latentwarmespeichereinheit insbesondere nicht nur stationär betrieben wird, sondern als transportabler Latentwarmespeicher, dass durch den Transport Teile des Salzhydrats 2 in die Entnahmeleitung 5 gelangen und auf diese Weise den Warmeträgermediumkreislauf verunreinigen und so den Betrieb der Latentwarmespeichereinheit nachhaltig stören. In jedem Fall ist der Betrieb, d.h. zum Beispiel die Versorgung eines warmegetriebenen Motors mit Wärmeenergie, durch die verstärkte Salzhydratverschleppung wahrend des Transports nicht möglich.Latent heat storage unit is in particular not only operated stationary, but as a portable latent heat storage that parts of the salt hydrate 2 get into the removal line 5 during the transport and in this way contaminate the heat transfer medium circuit and thus permanently disrupt the operation of the latent heat storage unit. In any case, the operation, i.e. For example, the supply of a warm motor with thermal energy, which is not possible due to the increased carry-over of salt hydrate during transport.
Die negativen Folgen einer Versalzung desThe negative consequences of salinization of the
Warmetragerolkreislaufs 10 in der Latentwarmespeichereinheit treten zwar im rein stationären Betrieb weniger akut auf, sie sind jedoch auf mittlere Sicht auch dort nicht zu vernachlässigen. Aufgabe der Erfindung ist es daher das Verschleppen des Latentwarmespeichermediums in den Warmekreislauf zu verhindern.Heat carrier oil circuit 10 in the latent heat storage unit occurs less acutely in purely stationary operation, but it should not be neglected there either in the medium term. The object of the invention is therefore to prevent the latent heat storage medium from being carried over into the heat cycle.
Gelost wird diese Aufgabe mit einerThis task is solved with a
Latentwarmespeichereinheit gemäß den Merkmalen des Anspruchs 1.Latent heat storage unit according to the features of claim 1.
Ferner wurde in den unabhängigen Ansprüchen 15 und 16 eine bei der Erfindung einsetzbare Rohrleitung und ein Abscheideaufsatz definiert.Furthermore, a pipe which can be used in the invention and a separating attachment were defined in independent claims 15 and 16.
Darüber hinaus ist aus Anspruch 17 ein Verfahren zu entnehmen, welches sich im Rahmen der Erfindung zum Trennen des Latentwarmespeichermediums und des Warmetragermediums eignet .In addition, a method can be inferred from claim 17, which is suitable for separating the latent heat storage medium and the heat transfer medium within the scope of the invention.
Vorteilhafte Weiterbildungen sind in den Unteranspruchen angegeben.Advantageous further developments are specified in the subclaims.
Erfmdungsgemaß wird eine Latentwarmespeichereinheit, insbesondere zum Transport von Warme bereitgestellt, bei der ein Speicherbehalter mit einem Latentwarmespeichermedium befullt wird. Die Latentwarmespeichereinheit beinhaltet ferner einen Warmekreislauf zur Zu- und Abfuhr eines Warmetragermediums mit Bezug auf dasAccording to the invention, a latent heat storage unit, in particular for transporting heat, is provided, in which a storage container is filled with a latent heat storage medium. The latent heat storage unit further includes a heat circuit for supplying and removing a heat transfer medium with respect to the
Latentwarmespeichermedium, welcher ein Zufuhr- und ein Abfuhrsystem umfasst, das eine Entnahmeleitung beinhaltet, die wenigstens eine Öffnung zur Aufnahme des aus demLatent heat storage medium, which comprises a supply and a discharge system, which includes a removal line which has at least one opening for receiving the from the
Latentwarmespeichermedium austretenden Warmespeichermediums aufweist, wobei in höchst vorteilhafter Weise der Entnahmeleitung ein Absperrorgan zur im wesentlichen Aufnahme- und/oder Förder-Versperrung von dem Latentwarmespeichermedium und/oder dem Warmetragermedium zugeordnet ist. Dies hat zur Folge, dass erstmals das Verschleppen des Latentwarmespeichermediums in den Warmekreislauf der Latentwarmespeichereinheit bzw. derHas latent heat storage medium emerging heat storage medium, wherein in a highly advantageous manner the shut-off line is essentially a shut-off device Recording and / or delivery blocking of the latent heat storage medium and / or the heat transfer medium is assigned. This has the consequence that for the first time the latent heat storage medium is dragged into the heat cycle of the latent heat storage unit or the
Entnahmeleitung wahrend des Transports und/oder Betriebs der Speichereinheit verhindert werden kann.Extraction line can be prevented during the transport and / or operation of the storage unit.
Zu diesem Zwecke umfasst das Absperrorgan in vorteilhafter Weiterbildung des Erfindungsgegenstands ferner ein sogenanntes Rohr-in-Rohr System. Dieses weist neben der Entnahmeleitung eine zweite in der Entnahmeleitung verschiebbare und/oder verdrehbare Leitung bzw. Rohrleitung auf. Wobei die Entnahmeleitung und die zweite Leitung jeweils am Umfang Förderöffnungen besitzen. Dabei sind die Öffnungen der Entnahmeleitung und der zweiten Leitung an sich entsprechenden Positionen am Umfang angeordnet. Auf diese Weise wird höchst vorteilhaft sichergestellt, dass die beiden Rohre, d.h. die Entnahmeleitung und die zweite Leitung so gegeneinander verschoben werden können, dass die jeweiligen Öffnungen übereinander liegen. Im Gegensatz hierzu kann die in der Entnahmeleitung sitzende zweite Leitung aber auch so verschoben werden, dass die Öffnungen der Entnahmeleitung verschlossen sind. Die zuletzt beschrieben Verschluss- Stellung eignet sich insbesondere für den Transport derFor this purpose, the shut-off device in an advantageous further development of the subject matter of the invention further comprises a so-called pipe-in-pipe system. In addition to the extraction line, this has a second line or pipeline that can be displaced and / or rotated in the extraction line. The extraction line and the second line each have delivery openings on the circumference. The openings of the extraction line and the second line are arranged at corresponding positions on the circumference. In this way it is most advantageously ensured that the two pipes, i.e. the sampling line and the second line can be shifted against each other so that the respective openings lie one above the other. In contrast to this, however, the second line located in the extraction line can also be moved in such a way that the openings of the extraction line are closed. The locking position described last is particularly suitable for the transport of the
Latentwarmespeichereinheit, da aufgrund des Verschlusses der Entnahmeleitung ein Überschwappen von Teilen des Latentwarmespeichermediums in die Entnahmeleitung verhindert bzw. unmöglich gemacht wird.Latent heat storage unit, since parts of the latent heat storage medium are prevented from spilling over into the removal line due to the closure of the removal line or are made impossible.
Eine weitere vorteilhafte Ausgestaltung des Rohr-in-Rohr Systems kann auch darin bestehen, dass nicht die zweite Leitung in der Entnahmeleitung verschiebbar und/oder verdrehbar angeordnet ist, sondern die zweite Leitung sich über die Entnahmeleitung schiebt .A further advantageous embodiment of the pipe-in-pipe system can also consist in the fact that not the second line can be displaced and / or in the extraction line is rotatably arranged, but the second line slides over the extraction line.
Ferner ist erfindungsgemäß mit Vorteil vorgesehen, dass das erfindungsgemäße Absperrorgan zur im wesentlichen Aufnahme- und/oder Förderversperrung eine Drehschiebeeinrichtung umfasst . Die Drehschiebeeinrichtung ist hierbei in der Entnahmeleitung drehbar gelagert. Die erfindungsgemäße Drehschiebeeinrichtung kann ein oder mehrere Absperrkörper aufweisen, mit deren Hilfe unter Drehen der Drehschiebeeinrichtung die Öffnung bzw. die Öffnungen in der Entnahmeleitung verschlossen werden können. Wobei in einer weiteren Stellung unter Drehung der Drehschiebeeinrichtung die Öffnungen der Entnahmeleitung wiederum zur Förderung des Warmetr germediums geöffnet werden können.Furthermore, it is advantageously provided according to the invention that the shut-off device according to the invention essentially comprises a rotary slide device for blocking reception and / or delivery. The rotary slide device is rotatably mounted in the extraction line. The rotary slide device according to the invention can have one or more shut-off bodies, with the aid of which the opening or the openings in the removal line can be closed by rotating the rotary slide device. Wherein in a further position with rotation of the rotary slide device, the openings of the extraction line can in turn be opened to promote the Warmetr germ medium.
In weiterer höchst vorteilhafter Weiterbildung des Erfindungsgegenstands wird der oder den Öffnungen der Entnahmeleitung oder dem Absperrkörper ein Abscheideaufsatz zugeordnet. Vermittels des Abscheideaufsatzes ist es möglich, ohne unmittelbares Absperren der Öffnungen derIn a further highly advantageous development of the subject matter of the invention, a separation attachment is assigned to the opening or openings of the extraction line or the shut-off body. By means of the separating attachment, it is possible to shut off the openings of the
Entnahmeleitung im wesentlichen das Eindringen eines Teils des Latentwarmespeichermediums in den Wärmekreislauf bzw. die Entnahmeleitung zu verhindern und zwar höchst vorteilhaft auch während des Transports der Latentwarmespeichereinheit.Extraction line essentially to prevent part of the latent heat storage medium from entering the heat cycle or the extraction line, and this is highly advantageous even during the transport of the latent heat storage unit.
Zu diesem Zweck weist der Abscheideaufsatz eine Abreißkante zur Trennung der beiden Medien auf. Hierdurch wird nämlich erreicht, dass das im Betrieb der Latentwarmespeichereinheit mit dem Warmetragermedium mitgerissene bzw. mitfließende Latentwarmespeichermedium im wesentlichen turbulent aus dem Warmetragermedium herausgelöst wird und in den Speicherbehälter zurückfällt. Der Abscheideaufsatz umfasst erfindungsgemaß eine rinnenformige Struktur, wobei sich am Boden der Rinne ein oder mehrere Forderoffnungen befinden und an den Kanten der Rinne die erfindungsgemaßen Abreißkanten angeformt sind.For this purpose, the separating attachment has a tear-off edge for separating the two media. This means that the latent heat storage medium entrained or flowing along with the heat transfer medium during operation of the latent heat storage unit is essentially turbulently released from the heat transfer medium and falls back into the storage container. According to the invention, the separating attachment comprises a channel-shaped structure, one or more opening openings being located on the bottom of the channel and the tear-off edges according to the invention being formed on the edges of the channel.
Ferner sind erfindungsgemaß die Offnungen bzw.Furthermore, the openings or
Forderoffnungen an der Entnahmeleitung derart angebracht, dass sie sich auf der im Latentwarmespeichermedium abgewandten Umfangsseite der Entnahmeleitung befinden.Demand openings attached to the sampling line in such a way that they are located on the circumferential side of the sampling line facing away from the latent heat storage medium.
Gleiches gilt dementsprechend für den Abscheideaufsatz. Mit Vorteil wird dadurch eine Verlängerung der Forderstrecke erzielt, wodurch die Energieschwelle erhöht wird, mit der Teile des Latentwarmespeichermediums in den Warmekreislauf eindringen können. Der gleiche positive Effekt wird inThe same applies accordingly to the separator attachment. Advantageously, this results in an extension of the conveying path, which increases the energy threshold with which parts of the latent heat storage medium can penetrate the heat cycle. The same positive effect is seen in
Ergänzung auch durch den Abscheideaufsatz, insbesondere in der oben beschriebenen Form einer Rinne erzielt.Complement also achieved by the separation attachment, in particular in the form of a channel described above.
Wurden die oben beschriebenen Einrichtungen wie z.B. das Rohr-in-Rohr System bzw. die Drehschiebeeinrichtung und der Abscheideaufsatz auch getrennt voneinander beschrieben, so dienen sie doch dem gemeinsamen Zweck der Erfindung sowohl wahrend des Transportes der erfindungsgemaßenHas the equipment described above, e.g. the pipe-in-pipe system or the rotary slide device and the separating attachment are also described separately from one another, since they serve the common purpose of the invention both during the transport of the invention
Latentwarmespeichereinheit als auch im stationären Betrieb zu verhindern, dass Teile des Latentwarmespeichermediums in den Warmekreislauf verschleppt werden. Deshalb werden erfindungsgemaß das Absperrorgan nicht nur als solches eingesetzt sondern je nach Anwendung in Kombination miteinander .To prevent latent heat storage unit as well as in stationary operation that parts of the latent heat storage medium are carried over into the heat cycle. Therefore, the shut-off device according to the invention is not only used as such, but in combination with one another depending on the application.
Gute Warmespeichermedien sind z.B. Metallhydrate bzw. Salzhydrate. Als Warmetragermedium eignet sich insbesondere technisches Weißol. Diese Medienkombination hat aber auch Vorteile in Bezug auf die im Rahmen der Erfindung vorgesehene Trennung der Medien beim potentiellen Übergang in die Entnahmeleitung. Hierbei ist insbesondere hervorzuheben, dass Salzhydrate auch im flussigen Zustand eine wesentliche höhere Dichte aufweisen, jedoch weniger zähflüssig sind als technisches Weißol. Diese physikalische Eigenschaft, neben anderen, ist die Ursache für das unterschiedliche Stromungsverhalten von Metallhydraten gegenüber Weißol.Good heat storage media are, for example, metal hydrates or salt hydrates. Technical white oil is particularly suitable as a heat transfer medium. But this media combination also has Advantages with regard to the separation of the media provided for in the context of the invention in the event of a potential transition into the extraction line. It should be emphasized in particular that salt hydrates have a significantly higher density even in the liquid state, but are less viscous than technical white oil. This physical property, among others, is the reason for the different flow behavior of metal hydrates compared to white oil.
Unter Ausnutzung dieses unterschiedlichen Stromungsverhaltens ist die erfindungsgemaße Abreißkante derart ausgebildet, dass das möglicherweise im 01 suspendierendeTaking advantage of this different flow behavior, the tear-off edge according to the invention is designed in such a way that the possibly suspending edge
Latentwarmespeichermedium bzw. Salzhydrat im wesentlichen turbulent aus diesem herausgelost bzw. von diesem abgetrennt wird und wieder zurück ins Speichermediumreservoir fallt.Latent heat storage medium or salt hydrate is essentially turbulently extracted from this or separated from it and falls back into the storage medium reservoir.
Die Erfindung bezieht sich was das Absperren und/oder Abtrennen des Latentwarmespeichermediums und/oder des Warmetragermediums 'angeht, nicht nur auf eine Latentwarmespeichereinheit als solches sondern auch auf eine Rohrleitung, bei der die oben dargestellten Einrichtungen eingesetzt werden können und die in entsprechend anderen Anwendungen gleichfalls eingesetzt werden kann.The invention relates to the shut-off and / or separation of the latent heat storage medium and / or the heat transfer medium ', not only to a latent heat storage unit as such but also to a pipeline in which the devices shown above can be used and which are also used in corresponding other applications can be used.
Ferner bezieht sich die Erfindung auf einen Abscheideaufsatz gemäß den vorherstehenden Ausfuhrungen vermittels dem eine Trennung zwischen suspendierenden Medien möglich ist.Furthermore, the invention relates to a separating attachment according to the above explanations by means of which a separation between suspending media is possible.
Darüber hinaus liegt im Rahmen der Erfindung auch ein Verfahren zum Trennen einer Suspension, welches insbesondere bei Vorrichtungen eingesetzt werden kann, die den oben beschriebenen entsprechen und bei denen zunächst die Suspension in einem Bereich einer Öffnung eines Rohres gefordert wird, wobei an der Öffnung eine Abreißkante so angeordnet ist, dass an der Abreißkante zumindest ein Teil der Suspension im wesentlichen turbulent von der oder den anderen getrennt wird.In addition, the scope of the invention also includes a method for separating a suspension, which can be used in particular in devices which correspond to those described above and in which the suspension is initially in a region of an opening in a tube is required, a tear-off edge being arranged at the opening in such a way that at least one part of the suspension is separated from the other at least substantially turbulently at the tear-off edge.
Die Erfindung wird nachfolgend anhand verschiedener Zeichnungen im einzelnen beschrieben.The invention is described below with reference to various drawings.
Es zeigen:Show it:
Fig. 1 eine schematische Darstellung einerFig. 1 is a schematic representation of a
Latentwarmespeichereinheit mit den wesentlichen Einrichtung, Figuren 2a + 2b eine erste und eine zweite Variante eines Rohr-in-Rohr Absperrorgans, Fig. 3 eine Drehschiebeeinrichtung, die zum Absperren von Forderoffnungen in einer Entnahmeleitung angeordnet ist, Fig. 4 einen an eine Forderoffnung angeformten rinnenformigen Abscheideaufsatz.Latent heat storage unit with the essential device, FIGS. 2a + 2b show a first and a second variant of a pipe-in-pipe shut-off device, FIG. 3 shows a rotary slide device which is arranged in a removal line to shut off opening claims, Abscheideaufsatz.
Fig. 5 einen Querschnitt durch eine mit einem erfindungsgemaßen Abscheideaufsatz ausgestatteten Latentwarmespeichereinheit.5 shows a cross section through a latent heat storage unit equipped with a separation attachment according to the invention.
Aus den Figuren 2a und 2b ist jeweils ein Rohr-in-Rohr System zu entnehmen, bei dem die Offnungen des einen Rohrs durch dasA tube-in-tube system can be seen in each of FIGS. 2a and 2b, in which the openings of one tube through the
Verschieben der Offnungen des anderen Rohrs verschlossen oder geöffnet werden.Moving the openings of the other tube can be closed or opened.
Figur 2a zeigt hierzu ein Innenrohr 11 mit Offnungen 13 und ein Außenrohr 12 mit Offnungen 14. Die jeweiligen Offnungen 13 und 14 sind in den Mantel der Rohre 11 und 12 eingebracht. Die Offnungen 13 und 14 befinden sich dabei auf einer Linie und haben zueinander den gleichen Abstand. Die Große der Offnungen des Innenrohrs und des Außenrohrs sind ungefähr gleich. Ferner ist am aus dem Außenrohr 12 überstehenden Ende 15 ein Schieber 16 angebracht. Zwischen Außenrohr und Innenrohr befinden sich Dichtungsringe (nicht dargestellt), in denen das Innenrohr gleitfahig gelagert wird. Mit Hilfe des Schiebers 16 kann das Innenrohr 11 entweder in Pfeilrichtung 17 hin und her verschoben und/oder inFIG. 2a shows an inner tube 11 with openings 13 and an outer tube 12 with openings 14. The respective openings 13 and 14 are introduced into the jacket of the tubes 11 and 12. The openings 13 and 14 are on a line and have the same distance from one another. The size of the openings of the inner tube and the outer tube are approximately the same. Furthermore, a slide 16 is attached to the end 15 protruding from the outer tube 12. Between the outer tube and the inner tube there are sealing rings (not shown) in which the inner tube is mounted so that it can slide. With the aid of the slide 16, the inner tube 11 can either be moved back and forth in the direction of arrow 17 and / or in
Pfeilrichtung 18 im Außenrohr gedreht werden. Auf diese Weise können die Forderoffnungen 14 des Außenrohrs 12 entweder geöffnet oder verschlossen werden. Eine Feststellvorrichtung (nicht dargestellt) zum Feststellen des Innenrohrs 11 mit Bezug auf das Außenrohr 12 ist erfindungsgemaß naturlich auch vorgesehen. Mit Hilfe dieses Rohr-in-Rohr Systems kann insbesondere wahrend des Transports verhindert werden, dass durch die Forderoffnungen 14 des Außenrohrs 12 Salzhydrat in die Entnahmeleitung und damit in den Warmekreislauf gelangt.Arrow direction 18 can be rotated in the outer tube. In this way, the opening 14 of the outer tube 12 can either be opened or closed. A locking device (not shown) for locking the inner tube 11 with respect to the outer tube 12 is of course also provided according to the invention. With the aid of this pipe-in-pipe system, it can be prevented, in particular during transport, that salt hydrate reaches the removal line and thus the heating circuit through the opening 14 of the outer pipe 12.
Entsprechendes gilt für die Ausfuhrungsform nach Figur 2b. Diese unterscheidet sich zu der nach Figur 2a dadurch, dass die Absperrung der Entnahmeoffnungen 14', die sich nun am Innenrohr befinden, durch ein Verschieben oder Verdrehen des Außenrohrs 12' mit Hilfe des Schiebers 16' , der am geschlossenen Ende des Außenrohrs 12' angebracht ist, erfolgt .The same applies to the embodiment according to Figure 2b. This differs from that according to FIG. 2a in that the shutoff of the removal openings 14 ', which are now located on the inner tube, by moving or rotating the outer tube 12' with the aid of the slide 16 ', which is attached to the closed end of the outer tube 12' is done.
Aus Figur 3 ist eine Drehschiebeeinrichtung 17 zu entnehmen, die innerhalb einer mit Offnungen 18 und 19 versehenen Entnahmeleitung drehbar angeordnet ist. Die Drehschiebeeinrichtung umfasst an ihren Enden 20 und 21 Absperrkorper, die in ihrer Form an die Innenflache der Entnahmeleitung angepasst sind und die unter Verdrehen der Drehschiebeeinrichtung die Offnungen 18 und 19 verschließen können. Auch auf diese Weise kann insbesondere beim Transport der erfindungsgemaßen Latentwarmespeichereinheit verhindert werden, dass Teile des Latentwarmespeichermediums in die Entnahmeleitung gelangt .FIG. 3 shows a rotary slide device 17 which is rotatably arranged within a removal line provided with openings 18 and 19. The rotary slide device comprises at its ends 20 and 21 shut-off bodies, the shape of which rests on the inner surface of the Tapping line are adapted and which can close the openings 18 and 19 by rotating the rotary slide device. In this way, too, it can be prevented, in particular when the latent heat storage unit according to the invention is being transported, that parts of the latent heat storage medium get into the extraction line.
Aus Figur 4 ist eine weitere Möglichkeit zu entnehmen, wie insbesondere verhindert werden kann, dass vor allem wahrend des Betriebs der Latentwarmespeichereinheit Salzhydrat 2FIG. 4 shows a further possibility of how, in particular, it can be prevented that salt hydrate 2 is prevented, especially during operation of the latent heat storage unit
(Fig. 1, 2), d.h. Teile des Latentwarmespeichermediums, in die Entnahmeleitung und damit in den Wärmekreislauf der Speichereinheit gelangt. Figur 2 zeigt in diesem Zusammenhang einen Querschnitt einer Entnahmeleitung 5 (Figur 1), bei der an eine Öffnung 22 oder auch mehreren Offnungen 22 ein(Fig. 1, 2), i.e. Parts of the latent heat storage medium get into the extraction line and thus into the heat circuit of the storage unit. In this context, FIG. 2 shows a cross section of a removal line 5 (FIG. 1), in which an opening 22 or a plurality of openings 22 is inserted
Abscheideaufsatz angeformt ist. Der Abscheideaufsatz 23 weist eine rinnenformige Gestalt auf, wobei sich am Boden der Rinne die Öffnung 22 befindet. Der Abscheideaufsatz 23 kann entweder den einzelnen Offnungen in definierter Dimension individuell zugeordnet werden oder sich über samtliche Offnungen in der Entnahmeleitung erstrecken und dabei samtliche Forderoffnungen der Entnahmeleitung einschließen.Separator attachment is molded. The separating attachment 23 has a groove-like shape, the opening 22 being located at the bottom of the groove. The separating attachment 23 can either be individually assigned to the individual openings in a defined dimension or can extend over all openings in the extraction line and thereby include all opening requirements of the extraction line.
Die Seitenbereiche der Rinne 24 weisen nach außen gebogene Kanten 25 auf. Diese Kanten 25 bilden erfindungsgemaß sogenannte Abreißkanten, an denen das wahrend des Betriebs der Speichereinheit unter Umstanden mitgeforderte Salzhydrat vom 01 10 (Fig. 1), d.h. vom Warmetragermedium, getrennt wird. Das Prinzip der Trennung zwischen dem Wärmetragerol und einem Salzhdryt wie z.B. Natriumacetat beruht im wesentlichen darauf, dass das Natriumacetat ein gegenüber dem 01 anderes Stromungsverhalten zeigt. Die Ursache dafür liegt darin, dass z.B. Natriumacetat eine im Vergleich zum 01 höhere Dichte aufweist, allerdings weniger zähflüssig ist. Physikalisch fuhrt dies zu dem Ergebnis, dass die Eigenschaften des stromenden Natriumacetats wesentlich weniger von der inneren Reibung bestimmt werden, so dass das stromende Natriumacetat wesentlich früher zu Turbulenzen neigt als dies beim 01 der Fall ist. Demzufolge wird sich das Natriumacetat, wenn es über die erfindungsgemaße Abreißkante 25 fließt, wesentlich früher von dieser turbulent ablosen. Das Wärmetragerol wird demgegenüber laminar weiter in die Forderoffnung 22 der Entnahmeleitung fließen. Das auf diese Weise turbulent abgelöste Natriumacetat fallt dann in das Natriumacetat- Reservoir 2 (Fig. 1, 5) des Speicherbehalters 7 (Fig. 1,5) wieder zurück. Hierbei ist auch darauf zu achten, dass die Pumpe 4 (Fig. 1) auf eine ausreichend hohe Forderleistung eingestellt werden kann bzw. wird.The side regions of the channel 24 have edges 25 which are bent outwards. According to the invention, these edges 25 form so-called tear-off edges on which the salt hydrate, which may be required during operation of the storage unit, is separated from 01 10 (FIG. 1), ie from the heat transfer medium. The principle of the separation between the heat transfer oil and a salt hydrate such as sodium acetate is essentially based on the fact that the sodium acetate shows a different flow behavior compared to the 01. The reason for this is that, for example, sodium acetate has a higher density than 01 has, but is less viscous. Physically, this leads to the result that the properties of the flowing sodium acetate are determined much less by the internal friction, so that the flowing sodium acetate tends to turbulence much earlier than is the case with the 01. Accordingly, if the sodium acetate flows over the tear-off edge 25 according to the invention, it will detach itself from it turbulently much earlier. In contrast, the heat transfer oil will continue to flow laminarly into the opening 22 of the extraction line. The sodium acetate thus turbulently detached then falls back into the sodium acetate reservoir 2 (FIGS. 1, 5) of the storage container 7 (FIG. 1.5). It is also important to ensure that the pump 4 (FIG. 1) can or will be set to a sufficiently high output.
Aus Figur 5 ist diesbezüglich auch die Lage der Forderoffnung 22 bzw. des Abscheideaufsatzes 23 mit Bezug auf das Natriumacetat-Reservoir zu entnehmen. Dabei ist zu sehen, dass die Öffnung 22 auf der dem Natriumacetat abgewandtenIn this regard, FIG. 5 also shows the position of the opening 22 or the separating attachment 23 with respect to the sodium acetate reservoir. It can be seen that the opening 22 faces away from the sodium acetate
Seite der Entnahmeleitung liegt. Dies hat zur Folge, dass die Fließstrecke des Natriumacetats in die Entnahmeleitung vergrößert wird. Wobei zumindest die kinetische Energie eines Teils des herausgelosten bzw. mitgeforderten Natriumacetats grundsatzlich nicht ausreichen wird, die verlängerte Strecke zu durchlaufen, so dass es schon frühzeitig wieder in das Natriumacetat-Reservoir 2 (Fig. 1, 5) zurückfallen wird. Side of the sampling line. As a result, the flow path of the sodium acetate into the extraction line is increased. Whereby at least the kinetic energy of part of the sodium acetate that is extracted or co-demanded will in principle not be sufficient to cover the extended distance, so that it will fall back into the sodium acetate reservoir 2 (FIGS. 1, 5) at an early stage.
Claims
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PCT/EP2001/009801 WO2003019099A1 (en) | 2001-08-24 | 2001-08-24 | Latent heat accumulator unit with a stopping device for substantially preventing a flow |
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Cited By (3)
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WO2005054767A1 (en) | 2003-12-02 | 2005-06-16 | Kabushiki Kaisha Kobe Seiko Sho | Heat storage unit |
WO2006114069A1 (en) * | 2005-04-27 | 2006-11-02 | Pro Ma Co Gmbh | Rotatable housing for the uniform rotation of suction lines of a latent thermal energy accumulator, and an automatic melting device based on the flow ratio |
EP1752728A3 (en) * | 2005-08-05 | 2007-02-28 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Heat-storage unit and operation method of heat-storage unit |
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