CN118258654A - Gas sampler for pipeline gas monitoring - Google Patents
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Abstract
Description
技术领域Technical Field
本发明属于能源装备技术领域，具体涉及一种用于管线燃气监测的气体取样器。The invention belongs to the technical field of energy equipment, and in particular relates to a gas sampler for pipeline gas monitoring.
背景技术Background technique
燃气在输送、存储和转运过程中，需要经常从管线上取样进行检测分析，以方便质控监测。目前对燃气取样一般是采用两端带阀门的钢瓶接入管线，使燃气从钢瓶中通过，充满后再关闭阀门，取下钢瓶即实现取样。在正式取样前，先将钢瓶的进气口接入管线的取样进气接口，进行2-3min的排气，然后再将钢瓶的出气口接入管线的取样出气接口，使燃气流经钢瓶后实现取样。由于排气时直接将燃气排放到大气中，此时取样人员会在较长时间内暴露于混合了燃气的空气中，不仅不利于取样人员的健康，还存在燃爆的安全隐患。During the transportation, storage and transfer of gas, it is necessary to frequently take samples from the pipeline for testing and analysis to facilitate quality control monitoring. At present, gas sampling is generally carried out by connecting a steel cylinder with valves at both ends to the pipeline, allowing the gas to pass through the cylinder. After it is full, the valve is closed and the cylinder is removed to achieve sampling. Before formal sampling, the gas inlet of the cylinder is first connected to the sampling gas inlet interface of the pipeline, and the gas is exhausted for 2-3 minutes. Then, the gas outlet of the cylinder is connected to the sampling gas outlet interface of the pipeline, and the gas is sampled after passing through the cylinder. Since the gas is directly discharged into the atmosphere during exhaust, the sampler will be exposed to the air mixed with gas for a long time, which is not only not conducive to the health of the sampler, but also poses a safety hazard of combustion and explosion.
有鉴于此，有必要提供一种能够减少排气时间，又不影响检测准确性的气体取样器。In view of this, it is necessary to provide a gas sampler that can reduce the exhaust time without affecting the detection accuracy.
发明内容Summary of the invention
本发明的目的是提供一种用于管线燃气监测、能减少排气时间的气体取样器。The object of the present invention is to provide a gas sampler for pipeline gas monitoring which can reduce the exhaust time.
为了解决上述技术问题，本发明公开了一种用于管线燃气监测的气体取样器，包括用于存储气体样品的气罐，所述气罐两端分别设有进气接头和出气接头；气罐内腔中部沿轴线方向设有柔性隔膜，将气罐内腔分为第一腔体和第二腔体；所述气罐上侧设有第一进气口和第二进气口，气罐下侧设有第一出气口和第二出气口，第一进气口和第一出气口与第一腔体连通，第二进气口和第二出气口与第二腔体连通；In order to solve the above technical problems, the present invention discloses a gas sampler for pipeline gas monitoring, comprising a gas tank for storing gas samples, wherein both ends of the gas tank are respectively provided with an inlet joint and an outlet joint; a flexible diaphragm is provided in the middle of the inner cavity of the gas tank along the axial direction, dividing the inner cavity of the gas tank into a first cavity and a second cavity; a first inlet and a second inlet are provided on the upper side of the gas tank, and a first outlet and a second outlet are provided on the lower side of the gas tank, the first inlet and the first outlet are connected to the first cavity, and the second inlet and the second outlet are connected to the second cavity;
所述进气接头分别通过第一阀门与第一进气口连接，通过第二阀门与第二进气口连接；所述出气接头分别通过第一三通阀门与第一进出气口连接，通过第二三通阀门与第二出气口连接，第一三通阀门、第二三通阀门均有一个接口与大气连通；The air inlet connector is connected to the first air inlet through the first valve, and is connected to the second air inlet through the second valve; the air outlet connector is connected to the first air inlet and outlet through the first three-way valve, and is connected to the second air outlet through the second three-way valve, and both the first three-way valve and the second three-way valve have an interface connected to the atmosphere;
气罐取样时，第一腔体和第二腔体中仅有一个腔体与进气接头和出气接头连通；对第一腔体充气时，第一阀门打开，第一三通阀门与出气接头连通，进气接头、第一腔体和出气接头形成通路，第二阀门关闭，第二三通阀门与大气连通，取样完成后，关闭第一阀门和第一三通阀门；对第二腔体充气时，第二阀门打开，第二三通阀门与出气接头连通，进气接头、第二腔体和出气接头形成通路，第一阀门关闭，第一三通阀门与大气连通，取样完成后，关闭第二阀门和第二三通阀门。When sampling the gas cylinder, only one of the first cavity and the second cavity is connected to the air inlet connector and the air outlet connector; when inflating the first cavity, the first valve is opened, the first three-way valve is connected to the air outlet connector, the air inlet connector, the first cavity and the air outlet connector form a passage, the second valve is closed, the second three-way valve is connected to the atmosphere, and after sampling is completed, the first valve and the first three-way valve are closed; when inflating the second cavity, the second valve is opened, the second three-way valve is connected to the air outlet connector, the air inlet connector, the second cavity and the air outlet connector form a passage, the first valve is closed, the first three-way valve is connected to the atmosphere, and after sampling is completed, the second valve and the second three-way valve are closed.
优选地，所述柔性隔膜的面积不小于气罐内表面积的一半。Preferably, the area of the flexible diaphragm is not less than half of the inner surface area of the gas tank.
优选地，所述第一腔体和第二腔体中，当其中一个腔体充有样品时，该腔体充满气罐内腔，柔性隔膜在压力下贴气罐一侧内壁，另一个腔体体积被压缩至最小。Preferably, when one of the first cavity and the second cavity is filled with a sample, the cavity fills the inner cavity of the gas tank, the flexible diaphragm adheres to the inner wall of one side of the gas tank under pressure, and the volume of the other cavity is compressed to a minimum.
优选地，取样完成后，处于压缩状态的腔体所直接连接的阀门均关闭，以避免空气进入该腔体。Preferably, after sampling is completed, valves directly connected to the cavity in the compressed state are closed to prevent air from entering the cavity.
优选地，所述气罐在取样时，选择对体积被压缩至最小的腔体进行充样。Preferably, when taking samples, the gas cylinder selects to fill the cavity whose volume is compressed to the minimum.
优选地，开始取样前，无需对气罐排气或仅需短时间排气。Preferably, before starting sampling, there is no need to vent the gas cylinder or only a short period of venting is required.
优选地，所述柔性隔膜采用不透气材料。Preferably, the flexible membrane is made of air-impermeable material.
优选地，所述柔性隔膜采用无弹性或低弹性的不透气材料。Preferably, the flexible membrane is made of an airtight material with no elasticity or low elasticity.
优选地，当需要取两种样品时，先对第一腔体或第二腔体中的一个腔体进行充样，再对另一个腔体进行充样。Preferably, when two samples need to be taken, one of the first cavity or the second cavity is filled with the sample first, and then the other cavity is filled with the sample.
优选地，开始取样前，测试待取样腔体所连接三通阀门的气压，如大于当地正常气压，则增加排气时间；或者采用充气装置对其中一个腔体充入高压空气，使另一个腔体被充分压缩以清除其中的残留气体。Preferably, before starting sampling, test the air pressure of the three-way valve connected to the cavity to be sampled. If it is greater than the local normal air pressure, increase the exhaust time; or use an inflation device to fill one of the cavities with high-pressure air so that the other cavity is fully compressed to remove the residual gas therein.
本发明的用于管线燃气监测的气体取样器，通过柔性隔膜和多个阀门相匹配的设置，使得被压缩的腔体内的残余气体降至最低，在对被压缩的腔体进行充气取样时，可无需排气或仅需短时间排气，大大缩短了排气时间，使操作人员在取样时无需长时间暴露在危险环境中，更安全更高效。The gas sampler for pipeline gas monitoring of the present invention reduces the residual gas in the compressed cavity to a minimum through the matching arrangement of a flexible diaphragm and a plurality of valves. When the compressed cavity is inflated and sampled, there is no need to exhaust or only a short time of exhaust is required, which greatly shortens the exhaust time and enables operators to avoid being exposed to a dangerous environment for a long time when sampling, thereby being safer and more efficient.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为一种用于管线燃气监测的气体取样器的结构示意图。FIG. 1 is a schematic diagram of the structure of a gas sampler for pipeline gas monitoring.
图2为图1中用于管线燃气监测的气体取样器在对第一腔体充样时的结构示意图，其中，实线箭头显示了第一腔体中气体的流动方向，虚线箭头显示了第二腔体中残留气体的流动方向。Figure 2 is a schematic diagram of the structure of the gas sampler for pipeline gas monitoring in Figure 1 when filling the first cavity with samples, wherein the solid arrow shows the flow direction of the gas in the first cavity, and the dotted arrow shows the flow direction of the residual gas in the second cavity.
图3为图1中用于管线燃气监测的气体取样器在对第二腔体充样时的结构示意图，其中，实线箭头显示了第二腔体中气体的流动方向，虚线箭头显示了第一腔体中残留气体的流动方向。Figure 3 is a schematic diagram of the structure of the gas sampler for pipeline gas monitoring in Figure 1 when filling the second cavity with samples, wherein the solid arrow shows the flow direction of the gas in the second cavity, and the dotted arrow shows the flow direction of the residual gas in the first cavity.
图中标号为：1、气罐，2、进气接头，210、第一进气口，220、第二进气口，3、出气接头，310、第一出气口，320、第二出气口，4、柔性隔膜，5、第一腔体，6、第二腔体，7、第一阀门，8、第二阀门，9、第一三通阀门，10、第二三通阀门。The numbers in the figure are: 1. gas tank, 2. air inlet connector, 210. first air inlet, 220. second air inlet, 3. air outlet connector, 310. first air outlet, 320. second air outlet, 4. flexible diaphragm, 5. first cavity, 6. second cavity, 7. first valve, 8. second valve, 9. first three-way valve, 10. second three-way valve.
具体实施方式Detailed ways
下面通过实施例对本发明做进一步的详细说明，以令本领域技术人员参照说明书文字能够据以实施。The present invention is further described in detail below through examples so that those skilled in the art can implement the invention with reference to the description.
应当理解，本文所使用的诸如“具有”，“包含”以及“包括”术语并不排除一个或多个其它元件或其组合的存在或添加。It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.
如图1所示，一种用于管线燃气监测的气体取样器，包括用于存储气体样品的气罐1，所述气罐1两端分别设有进气接头2和出气接头3；气罐1内腔中部沿轴线方向设有柔性隔膜4，将气罐1内腔分为第一腔体5和第二腔体6；所述气罐1上侧设有第一进气口210和第二进气口220，气罐1下侧设有第一出气口310和第二出气口320，第一进气口210和第一出气口310与第一腔体5连通，第二进气口220和第二出气口320与第二腔体6连通；As shown in FIG1 , a gas sampler for pipeline gas monitoring comprises a gas tank 1 for storing gas samples, wherein an inlet connector 2 and an outlet connector 3 are respectively provided at both ends of the gas tank 1; a flexible diaphragm 4 is provided in the middle of the inner cavity of the gas tank 1 along the axial direction, dividing the inner cavity of the gas tank 1 into a first cavity 5 and a second cavity 6; a first gas inlet 210 and a second gas inlet 220 are provided on the upper side of the gas tank 1, and a first gas outlet 310 and a second gas outlet 320 are provided on the lower side of the gas tank 1, the first gas inlet 210 and the first gas outlet 310 are communicated with the first cavity 5, and the second gas inlet 220 and the second gas outlet 320 are communicated with the second cavity 6;
所述进气接头2分别通过第一阀门7与第一进气口210连接，通过第二阀门8与第二进气口220连接；所述出气接头3分别通过第一三通阀门9与第一进出气口连接，通过第二三通阀门10与第二出气口320连接，第一三通阀门9、第二三通阀门10均有一个接口与大气连通；必要时，还可在出气接头3处再单独设置一个阀门。The air inlet connector 2 is connected to the first air inlet 210 through the first valve 7, and is connected to the second air inlet 220 through the second valve 8; the air outlet connector 3 is connected to the first air inlet and outlet through the first three-way valve 9, and is connected to the second air outlet 320 through the second three-way valve 10. Both the first three-way valve 9 and the second three-way valve 10 have an interface connected to the atmosphere; if necessary, a separate valve can be set at the air outlet connector 3.
如图2所示，气罐1取样时，第一腔体5和第二腔体6中仅有一个腔体与进气接头2和出气接头3连通；对第一腔体5充气时，第一阀门7打开，第一三通阀门9与出气接头3连通，进气接头2、第一腔体5和出气接头3形成通路，第二阀门8关闭，第二三通阀门10与大气连通以方便压缩第二腔体6时排出残留气体，取样完成后，关闭第一阀门7和第一三通阀门9、第二三通阀门10；如图3所示，对第二腔体6充气时，第二阀门8打开，第二三通阀门10与出气接头3连通，进气接头2、第二腔体6和出气接头3形成通路，第一阀门7关闭，第一三通阀门9与大气连通以方便压缩第一腔体5时排出残留气体，取样完成后，关闭第二阀门8和第二三通阀门10、第一三通阀门9。As shown in Figure 2, when the gas cylinder 1 is sampled, only one of the first cavity 5 and the second cavity 6 is connected to the air inlet connector 2 and the air outlet connector 3; when the first cavity 5 is inflated, the first valve 7 is opened, the first three-way valve 9 is connected to the air outlet connector 3, the air inlet connector 2, the first cavity 5 and the air outlet connector 3 form a passage, the second valve 8 is closed, and the second three-way valve 10 is connected to the atmosphere to facilitate the discharge of residual gas when the second cavity 6 is compressed. After the sampling is completed, the first valve 7 and the first three-way valve 9 and the second three-way valve 10 are closed; as shown in Figure 3, when the second cavity 6 is inflated, the second valve 8 is opened, the second three-way valve 10 is connected to the air outlet connector 3, the air inlet connector 2, the second cavity 6 and the air outlet connector 3 form a passage, the first valve 7 is closed, and the first three-way valve 9 is connected to the atmosphere to facilitate the discharge of residual gas when the first cavity 5 is compressed. After the sampling is completed, the second valve 8 and the second three-way valve 10 and the first three-way valve 9 are closed.
进一步的，所述柔性隔膜4的面积不小于气罐1内表面积的一半。柔性隔膜4具有足够的面积，才能使柔性隔膜4能够大面积的贴紧一侧气罐1内壁，从而尽量多的压缩该侧腔体体积，减少该侧腔体内的气体残留，使得在取样时，无需排气或减少排气时间(排气时间可控制在1min内)，本实施例中，采用的柔性隔膜大小在受到气体压力后，柔性隔膜形状与气罐一侧内壁形状相适配，以使柔性隔膜气罐一侧内壁较好的贴合。Further, the area of the flexible diaphragm 4 is not less than half of the inner surface area of the gas tank 1. The flexible diaphragm 4 has a sufficient area so that the flexible diaphragm 4 can be closely attached to the inner wall of the gas tank 1 on one side over a large area, thereby compressing the volume of the cavity on this side as much as possible, reducing the gas residue in the cavity on this side, so that when sampling, there is no need to exhaust or reduce the exhaust time (the exhaust time can be controlled within 1 minute). In this embodiment, the size of the flexible diaphragm used is adapted to the shape of the inner wall of one side of the gas tank after being subjected to gas pressure, so that the inner wall of one side of the flexible diaphragm gas tank fits well.
进一步的，所述第一腔体5和第二腔体6中，当其中一个腔体充有样品时，由于样品(燃气)的压力远高于大气压，在这种压力差下，样品迫使该腔体充满气罐1内腔，柔性隔膜4在压力下贴气罐1一侧内壁，另一个腔体体积被压缩至最小(本发明的“最小”是指本装置的结构在理想的温度、压力场景下，腔体被压缩时所能达到的理想体积，理论上可以为零，但实际只能接近于零)。Furthermore, in the first cavity 5 and the second cavity 6, when one of the cavities is filled with a sample, since the pressure of the sample (combustion gas) is much higher than the atmospheric pressure, under this pressure difference, the sample forces the cavity to fill the inner cavity of the gas tank 1, and the flexible diaphragm 4 sticks to the inner wall of one side of the gas tank 1 under pressure, and the volume of the other cavity is compressed to the minimum (the "minimum" in the present invention refers to the ideal volume that can be achieved when the cavity is compressed under the structure of the device under ideal temperature and pressure scenarios, which can theoretically be zero, but can only be close to zero in practice).
当一个腔体体积被压缩至最小时，该腔体所直接连接的阀门均关闭，以避免空气进入该腔体。所述气罐1在取样时，选择对体积被压缩至最小的腔体进行充样，以减少排气时间。When the volume of a cavity is compressed to the minimum, the valves directly connected to the cavity are all closed to prevent air from entering the cavity. When sampling, the gas tank 1 selects the cavity whose volume is compressed to the minimum to fill the sample to reduce the exhaust time.
进一步的，所述柔性隔膜4采用无弹性或低弹性的不透气材料，使柔性隔膜4能较好的贴气罐1内壁，避免柔性隔膜4的回弹(即便柔性隔膜与气罐间出现轻微的密封问题也不容易导致柔性隔膜4的回弹或不再紧贴气罐内壁)。值得说明的是，采用高弹性的柔性隔膜4，取样后，在样品气体的高压下，将高弹性的柔性隔膜4压至紧贴气罐1一侧内壁，也能较好的将另一个腔体体积压缩至最小，此方案也在本发明的保护范围之内。Furthermore, the flexible diaphragm 4 is made of an airtight material with no elasticity or low elasticity, so that the flexible diaphragm 4 can be well attached to the inner wall of the gas tank 1, avoiding the rebound of the flexible diaphragm 4 (even if there is a slight sealing problem between the flexible diaphragm and the gas tank, it is not easy to cause the flexible diaphragm 4 to rebound or no longer be close to the inner wall of the gas tank). It is worth noting that after sampling, when a highly elastic flexible diaphragm 4 is used, the highly elastic flexible diaphragm 4 is pressed to be close to the inner wall of one side of the gas tank 1 under the high pressure of the sample gas, and the volume of the other cavity can be well compressed to a minimum. This solution is also within the protection scope of the present invention.
进一步的，当需要取两种样品时(一个气罐装两种样品)，先对第一腔体5或第二腔体6中的一个腔体进行充样，气罐1内的充样压力达到接近正常值的一半时，关闭相应阀门，再对另一个腔体进行充样，这样两个腔体内都能单独存储气体。Furthermore, when two samples need to be taken (two samples are contained in one gas cylinder), one of the first cavity 5 or the second cavity 6 is filled with samples first. When the filling pressure in the gas cylinder 1 reaches nearly half of the normal value, the corresponding valve is closed, and then the other cavity is filled with samples. In this way, gas can be stored separately in both cavities.
进一步的，开始取样前，测试待取样腔体所连接三通阀门的气压，如大于正常气压，则说明该腔室内有较多的气体残留，应增加排气时间，并在闲时对阀门和柔性隔膜4的密闭性进行检查；或者，为了较好的去除残留气体，采用打气筒或车载充气装置对其中一个腔体充入高压空气(如0.3MPa或更高)，使另一个腔体被充分压缩以清除其中的残留气体。Furthermore, before starting sampling, test the air pressure of the three-way valve connected to the cavity to be sampled. If it is greater than the normal air pressure, it means that there is a lot of gas residual in the cavity. The exhaust time should be increased, and the airtightness of the valve and the flexible diaphragm 4 should be checked at leisure; or, in order to better remove the residual gas, use an air pump or a vehicle-mounted inflation device to fill one of the cavities with high-pressure air (such as 0.3MPa or higher), so that the other cavity is fully compressed to remove the residual gas therein.
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的实施例。Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.
Claims (10)
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2592464A (en) * | 1948-12-07 | 1952-04-08 | Shell Dev | Continuous proportional sampler |
| US3238783A (en) * | 1962-09-07 | 1966-03-08 | Nat Res Dev | Breath sampling apparatus |
| WO1996037150A1 (en) * | 1995-05-22 | 1996-11-28 | Broden Bengt Inge | A device for sampling a specific quantity of organic body fluid |
| DE10010014A1 (en) * | 2000-02-25 | 2001-08-30 | Juergen Joswig | Device for measuring the fuel remaining in a membrane tank for use in a satellite for determination of the point at which the remaining fuel reaches a reserve level |
| US7225690B1 (en) * | 2002-08-02 | 2007-06-05 | A+ Manufacturing, Llc | Multi-cavity sample cylinder with integrated valving |
| CN204479358U (en) * | 2015-02-28 | 2015-07-15 | 长春天工环境系统有限公司 | A kind of novel gas trap for environmental monitoring analysis of chemical elements |
| CN209841464U (en) * | 2019-05-20 | 2019-12-24 | 生态环境部环境规划院 | Sewage detection sampling device |
| CN211527959U (en) * | 2019-12-12 | 2020-09-18 | 无锡市易普特机电设备有限公司 | A sampling bottle for exhaust-gas detection surveys |
| CN115703035A (en) * | 2021-08-12 | 2023-02-17 | 中国电建集团华东勘测设计研究院有限公司 | Powder collector after explosion, explosion experimental device and explosion experimental method |
| CN219870466U (en) * | 2023-05-05 | 2023-10-20 | 山东省产品质量检验研究院 | An extraction device for transformer oil detection |
-
2024
- 2024-04-03 CN CN202410398738.1A patent/CN118258654B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2592464A (en) * | 1948-12-07 | 1952-04-08 | Shell Dev | Continuous proportional sampler |
| US3238783A (en) * | 1962-09-07 | 1966-03-08 | Nat Res Dev | Breath sampling apparatus |
| WO1996037150A1 (en) * | 1995-05-22 | 1996-11-28 | Broden Bengt Inge | A device for sampling a specific quantity of organic body fluid |
| DE10010014A1 (en) * | 2000-02-25 | 2001-08-30 | Juergen Joswig | Device for measuring the fuel remaining in a membrane tank for use in a satellite for determination of the point at which the remaining fuel reaches a reserve level |
| US7225690B1 (en) * | 2002-08-02 | 2007-06-05 | A+ Manufacturing, Llc | Multi-cavity sample cylinder with integrated valving |
| CN204479358U (en) * | 2015-02-28 | 2015-07-15 | 长春天工环境系统有限公司 | A kind of novel gas trap for environmental monitoring analysis of chemical elements |
| CN209841464U (en) * | 2019-05-20 | 2019-12-24 | 生态环境部环境规划院 | Sewage detection sampling device |
| CN211527959U (en) * | 2019-12-12 | 2020-09-18 | 无锡市易普特机电设备有限公司 | A sampling bottle for exhaust-gas detection surveys |
| CN115703035A (en) * | 2021-08-12 | 2023-02-17 | 中国电建集团华东勘测设计研究院有限公司 | Powder collector after explosion, explosion experimental device and explosion experimental method |
| CN219870466U (en) * | 2023-05-05 | 2023-10-20 | 山东省产品质量检验研究院 | An extraction device for transformer oil detection |
Non-Patent Citations (1)
| Title |
|---|
| 朱玲 等: "车载加油油气回收ORVR 系统应用进展", 油气储运, vol. 34, no. 5, 31 May 2015 (2015-05-31), pages 14 * |
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