US20180180359A1

US20180180359A1 - White smoke gas reduction device

Info

Publication number: US20180180359A1
Application number: US15/578,917
Authority: US
Inventors: Seong-Kyu PARK
Original assignee: Kf Co Ltd
Current assignee: Kf Co Ltd
Priority date: 2015-06-02
Filing date: 2016-06-01
Publication date: 2018-06-28
Also published as: KR101754665B1; KR20160142099A; CN208653259U; WO2016195375A1

Abstract

The present invention is related to a white smoke gas reduction device comprising: a white smoke gas introduction device for introducing a white smoke gas; an inertial impaction-type heat, exchange device tor removing fine dust included in the introduced white smoke gas in the manner of the inertial impaction, for cooling the white smoke gas through heat exchange so as to be converted to low-level white smoke gas, and for removing moisture within the white smoke gas through the condensation and the impaction; and a condenser for cooling a refrigerant, which is used for the heat exchange in the inertial the impaction-type heat exchange device, and then returning the same to the inertial the impaction-type heat exchange device.

Description

TECHNICAL FIELD

The present invention is related to a white smoke gas reduction device capable of removing a foreign material and preventing white smoke from flowing out, which is produced in the paper factory, the semiconductor factory and other high pressure chemical reactor.

BACKGROUND ART

The white smoke gas means a high temperature water vapor generated in producing a product in the paper manufacturing process, the semiconductor manufacturing process and other high pressure reactor. In the case of the white smoke gas, even if it does not contain the contaminated material, it can become a target of public grievance because the large quantities of white smoke gas discharged outside,
Therefore, several methods have been proposed to remove the white smoke gas. For example, the occurrence of the white smoke gas can be suppressed by heating the emission gas to lower the relative humidity. Furthermore, it can be accomplished by spraying cooling water to emission gas to remove the water component so as to lower the absolute humidity of the emission gas.
There are problems that heating of the exhaust gas may require a lot of energy and that the large quantities of water may be required in using the spraying the cooling water. Therefore, these method may increase the consumption of the energy and cooling water if they adopted in the full size smokestack where the emission gases released in bulk.

DISCLOSURE

Technical Problem

The present invention has been invented to provide a white smoke gas reduction device capable of removing a fine dust and contaminated material such as heavy metal included in the white smoke gas and reducing occurrence of white smoke gas by condensing water vapor of the white smoke gas to lower the absolute humidity.

Technical Solution

Accordingly, Accordingly, the present invention may provide a white smoke gas reduction device comprising: a white smoke gas introduction device for introducing a white smoke gas; an inertial impaction-type neat exchange device for removing tine dust included in the introduced white smoke gas in the manner of the inertial impaction, for cooling the white smoke gas through heat exchange so as to be converted to low-level white smoke gas, and for removing moisture within the white smoke gas through the condensation and the impaction; and a condenser for cooling a refrigerant, which is used for the heat exchange in the inertial the impaction-type heat exchange device, and then returning the same to the inertial the impaction-type heat exchange device.
As one aspect of the invention, the condenser may be installed at the outside of the building to convert the refrigerant in the gas-static to the liquid-static in the manner of air-cooling.
As one aspect of the invention, the condenser maybe installed higher than the inertial impact ion-type heat exchange device to return the refrigerant in the liquid-static to the inertial impact ion-type heat exchange device by the gravity.
As one aspect of the invention, the refrigerant may be changed from the liquid-static to gas-static at the room temperature.
As one aspect of the invention, the white smoke gas introduction device and the inertial impaction-type heat exchange device may be installed in the building, and the condenser may be installed on a rooftop.
As one aspect of the invention, the condenser may include: a pin-tube metallic pipe containing the refrigerant therein; and a blast fan providing a stream of the air to the pin-tube metallic pipe.
As one aspect of the invention, the pin-cube metallic pipe may include: a cooling pipe containing a heated refrigerant which is heated in the inertial impaction-type heat exchange device; and a plurality of the cooling pins being sticked to the cooling pipe for improving the cooling ratio of the heated refrigerant.
As one aspect of the invention, the inertial impaction-type heat exchange device may include: a first blade installed in slope with a predetermined angle to the wind direction of the white smoke; a second blade extended from the first blade with a bending angle; and a heat exchange pipe installed at the connection point of the first blade and the second blade, the heat exchange pipe containing the refrigerant inside.
As one a spec t of the invent ion, the inertial impact ion-type heat exchange device may include; a first refrigerant tank installed at a first side of the first blade and the second blade to supply the refrigerant to the heat exchange pipe; and a second refrigerant tank being sticked to a second side of the first blade and the second blade, the second refrigerant tank temporarily storing the refrigerant heated in the heat exchange pipe.
As one aspect of the invention, the first blade and the second blade may be made of the same material of the heat exchange pipe.
As one aspect of the invention, the first refrigerant tank may include a tank inlet for introducing the refrigerant returning from the condenser, and the second refrigerant tank may include a tank outlet for flowing out the heated refrigerant to the condenser.

Advantageous Effects

According to some of the embodiments of the present invention configured as described above, the water vapor of the white smoke gas may be condensed to be removed through the inertial impaction-type heat exchange device, and also may remove both the condensed water, the fine dust and the contaminated material at the same time by the effect of the impaction.
Furthermore, according to the embodiment of the present invention, the material which changed from liquid-statics to the gas-statics in the room temperature may be used as the refrigerant, the condenser may be installed higher than inertial impaction-type heat exchange device. By this dispatch, the refrigerant can be circulated naturally. It may increase the economy value by simplifying the structure and lowering the cost of manufacturing.

DESCRIPTION OF DRAWINGS

FIG. 1 is an overall drawing for the white

smoke gas reduction device, according to the one embodiment of the present invention.

FIG. 1 is an overall structural drawing for the white smoke gas reduction device, according to the one embodiment of the present invention.

FIG. 2 is a conceptional sectional view of the inertial impaction type heat exchange device used in the white smoke gas reduction device, according to the one embodiment of the present invention.

FIG. 3 is a partially enlarged perspective view for explaining the shape of the blade, the first and the second refrigerant tank of the inertial impaction type heat exchange device of the FIG. 2.

FIG. 4 is a specific sectional view for explaining the blade portion of the inertial impact ion type neat exchange device used in the white smoke gas reduction device, according to the one embodiment of the present invention.

FIG. 5 is a perspective view of the condenser used in the white smoke gas reduction device, according to the one embodiment of the present invention.

FIG. 6 is a transparent perspective view for explaining the inside of the condenser shown in FIG. 5

FIG. 7 is a drawing for explaining the connection between a pin-tube metallic pipe and a refrigerant outlet pipe used in the condenser.

FIG. 8 is an overall structural view of other embodiment of the white smoke gas reduction device, according to the one embodiment of the present invention.

MODE FOR INVENTION

Hereinafter, Hereinafter, a white smoke gas reduction device according to an exemplary embodiment of the present document will be described in more detail with reference to the accompanying drawings.
FIG. 1 is an overall structural drawing for the white smoke gas reduction device, according to the one embodiment of the present invention. As shown in FIG. 1, a white smoke gas reduction device 1000, one embodiment of the present invention, may comprise a white smoke gas introduction device 100, an inertial impaction-type heat exchange device 200, a condense and an expander 400.
The white smoke gas introduction device 100 is device for introducing emission gas (white smoke gas) produced in the manufacturing process from a paper factory, a semiconductor factor, a nigh pressure reactor and so on, the emission gas containing a lot of water vapor. For example, a blast fan 320 may be used as the introduction means for the white smoke gas produced in the manufacturing process. Here, the white smoke gas, which is flowed in, may have high temperature, contain a lot of water vapor and include the fine dust or the contaminated material.
The inertial impaction-type heat exchange device 200 may remove the moisture included in the introduced white smoke gas in the manner of the inertial impaction and the heat exchange, and get rid of the fine dust and the contaminated material with the moisture. Namely, a heat exchange pipe which the refrigerant can pass through may be installed at the inertial impaction-type heat exchange device 200. The white smoke gas is converted to the low-level white smoke gas by removing the moisture by condensation and inertial impaction (heat exchange) made in the heat exchange pipe and the blade units 230 connected to the heat exchange pipe.
This inertial impaction-type heat exchange device 200 will be explained in detail with FIG. 2 to FIG. 4.
On the other hand, the condensor 300 performs the function of cooling down the refrigerant used in heat exchange at inertial impact ion-type neat exchange device 200 and returning it to the inertial impaction-type heat exchange device 200. Namely, the refrigerant used in the inertial impaction-type heat exchange device 200 come back in original state at the condenser 300, and then it is supplied to the heat exchange device to nave a circulation structure. At this time, the condensor 300 may convert the refrigerant to the original state in the manner of natural cooling method. Namely, the refrigerant in liquid-static is converted to the gas by heat exchange with a high temperature white smoke gas in the inertial impaction-type heat exchange device 200. Then the gas is converted to the liquid by cooling down in the condensor 300 to supply in the inertial impaction-type heat exchange device 200. At this moment, the inertial impaction-type heat exchange device 200 may be installed at the inside of the building and the condensor 300 may be installed on the rooftop. The inertial impaction-type heat exchange device 200 may be installed higher than the condensor 300 so that the refrigerant in liquid-static can be returned to the inertial impaction-type heat exchange device 200 by the gravity. So, as the refrigerant may be supplied to the inertial impaction-type heat exchange device 200 in the manner of the natural circulation without any other device, the manufacturing cost may be lowered and the facility may be simplified.
Here, the material which can be changed from the liquid-static to gas-static at the room temperature may be used as the refrigerant. In case that The material having a boiling point about 30˜40° C. may be used as the refrigerant, it can be converted to the gas at the heat exchange with high-temperature white smoke gas and it can be converted to the liquid at the natural cooling in the condensor 300. HFC 134 a may be used as this kind of refrigerant.
On the other hand, the condensor 300 performing this function may be explained in detail with FIG. 5 to FIG. 7 on its structure.
Moreover, the white smoke gas reduction device 1000 according to the one embodiment of the present invention may further include an expander 400.
The expander 400 may be installed at a connection pipe which connects the inertial impaction-type heat exchange device 200 and the condensor 300. The evaporated refrigerant in the inertial impaction-type heat exchange device 200 is introduced to the expander 400 having wide space to be adiabatically expanded. It is possible to produce renewable energy by working on a turbine installed inside it. The refrigerant loses part of its energy in the expander 400. Then, finally, it is returned to be the liquid-static originally at the condensor 300.
On the other hand, the other embodiment of utilizing the heat exchanged energy in the inertial impaction-type heat exchange device 200 instead of the expander 400 will be explained with FIG. 8.
Hereinafter, the inertial impaction-type heat exchange device 200 will be explained in detail with FIG. 2 to FIG. 4.
FIG. 2 is a conceptional sectional view of the inertial impaction-type heat exchange device 200 used in the white smoke gas reduction device, according to the one embodiment of the present invention, FIG. 3 is an partially enlarged perspective view for explaining the shape of the blade, the first and the second refrigerant tank 210, 220 of the inertial impaction-type heat exchange device 200 of the FIG. 2, and FIG. 4 is a specific sectional view for explaining the blade portion of the inertial impaction-type neat exchange device 200 used in the white smoke gas reduction device, according to the one embodiment of the present invention.
As show in FIG. 2, the inertial impact ion-type heat exchange device 200 used in the white smoke gas reduction device 1000 may comprise a gas inlet 201 formed at the one side of the housing, a gas outlet 203 formed at the other side of the housing, a first refrigerant tank 210 installed at lower side of the housing between the gas inlet 201 and the gas outlet 203, a plurality of the blade unit 230 (referring to FIG. 4), a blade connecting pipe 240 connected between the blade unit 230 so that the refrigerant can run through each other, and a sliding combining unit 250 for combine the blade unit 230 with the inside of the housing in the manner of sliding.
The gas inlet 201, is an element for introducing the white smoke gas to the blade units 230, the white gas being introduced from the white smoke gas introduction device 100. As shown, the gas inlet 201 is formed at the center of the one side surface of the inertial impaction-type heat exchange device 200. It has the gradually enlarged shape in backwards, so the gas spreads naturally to be supplied.
On the other hand, the gas outlet 203 is an element for flowing out the low level white smoke gas where the moisture, the contaminated material, the fine dust and so on were removed in the blade unit 230. As shown in Figs. the gas outlet 203 is formed at the other side surface of the inertial impaction-type heat exchange device 200. It has the corresponding shape to the gas inlet 201.
Next, the first refrigerant tank 210, the second refrigerant tank 220 and the blade units 230 which are formed at the between the gas inlet 201 and the gas outlet 203 will be explained in detail with FIG. 3 and FIG. 4.
As shown in FIG. 3, the first refrigerant tank 210 is installed at the lower side of the blade unit 230 to contain the refrigerant in liquid-static. The second refrigerant tack 220 is installed at the upper side of the blade unit 210 to temporarily store the refrigerant in gas-static.
The refrigerant in the liquid-static, which is supplied to the heat exchange pipe 235 of the blade unit 230, is stored in the first refrigerant tank 210. The refrigerant is supplied to the heat exchange pipe 235 of the adjacent blade units 230 through the connecting pipe 240 for connecting the each blade unit. The supplied refrigerant is moved along with the heat exchange pipe 235 to evaporate by heat exchange according to the heat contact with high temperature white smoke gas. The evaporated refrigerant is stored in the second refrigerant tank 220 installed at the upper side of the blade units 230.
The tank inlet 211 for receiving the refrigerant liquidated in the condensor 300 is formed at the first refrigerant tank 210. The tank outlet 221 for supplying the evaporated refrigerant to the condensor 300 is formed at the second refrigerant tank 220.
Moreover, each blade unit 230 is assembled or disassembled each other through the sliding combining unit 250 in the manner of sliding to make the exchange and the management easier. Namely, each blade unit 230 is configured to be modularized, combined with the sliding combining unit 250 to be place inside of the housing, and then the connecting pipes 240 are connected each other to run the refrigerant in the each blade. Therefore, the assembling can be simplifier, and management can be more convenient.
On the other hand, the blade unit 230, as shown in FIG. 4, may comprise a first blade 231, a second blade 232, and a heat exchange pipe 235.
Namely, the blade unit 230 may comprises a first blade 231 installed in slope with a predetermined angle to the stream (wind direction) of the white smoke gas, a second blade 232 extended from the first blade 231 with a bending angle, and a heat exchange pipe installed at the connection point of the first blade 231 and the second blade 232, the heat exchange pipe 235 containing the refrigerant inside. The refrigerant flowing in the heat exchange pipe 235 is evaporated by neat of the high temperature of the white smoke gas. Accordingly, the moisture w in the white smoke gas is condensed on the first blade 231, the second, blade 232, a first blocking blade 233 and the second blocking blade 234 to be removed.
In other words, as the first blade 231 and the second blade 232 is formed to be bent, the fine dust, the contaminated material p, can be removed with the moisture w by the inertial impaction. Furthermore, a pair of the first blocking blade 233 is installed at the connecting point of the first blade 231 and the second blade 232 so that the moisture and the contaminated material such as the dust can be impacted at the blocking blade. Then, the moisture is collected, the collected moisture is flowed down by the gravity. Therefore the moisture w of the white smoke gas is removed and the emission temperature of the white smoke can be lowered.
The heat exchange pipe 235 and the first and the second blade 231, 232 can be made of the metal having high thermal conductivity. Especially, the copper and the aluminum may increase the durability because they have good flexibility, thermal conductivity and corrosion resistance. Furthermore, when the first blade 231, the second blade 232, and the heat exchange pipe 235 are made of the same material, the heat shock would not occur even if the heat expansion due to the temperature gap during the operation happens. So the durability may be improved.
On the other hand, the second blocking blade 234 may be installed at the end of the second blade 232 so as to improve the inertial impaction effect. The moisture w and the contaminated material p such as the dust may be removed from the white smoke gas, and it can lower the temperature of the white smoke gas.
Hereinafter, the condensor 300 used in the white smoke gas reduction device will be explained in detailed, referring to FIG. 5 to FIG. 7.
FIG. 5 is a perspective view of the condensor 300 used in the white smoke gas reduction device, according to the one embodiment of the present invention. FIG. 6 is a transparent perspective view for explaining the inside of the condensor 300 shown in FIG. 5, and FIG. 7 is a drawing for explaining the connection between a pin-tube metallic pipe 310 and a refrigerant outlet pipe used in the condensor 300.
As shown in FIG. 5, the condensor assembly 300′ comprises two condensors 300, and a supporting housing 400 for supporting the two condensors 300. A refrigerant inlet pipe 500 which the heated refrigerant is flowed in is installed at upper side of the condensor assembly 300′. A refrigerant outlet pipe is installed at lower side of the condensor assembly 300′. The liquidated refrigerant is supplied to the inertial impaction-type heat exchange device 200 through the refrigerant outlet pipe. As shown in FIG. 6, the condensor 300 may comprise a pin-tube metallic pipe 310 which is installed vertically downwards from both sides, and a blast fan 320.
The refrigerant which is evaporated in the inertial impact ion-type heat exchange device 200 is cooled down to be liquidated in the pin-tube metallic pipe 310 in the manner of the natural cooling. One end of the pin-tube metallic pipe 310 is connected to the refrigerant inlet pipe. Accordingly, the evaporated refrigerant is moved downwardly to be naturally cooled down by the blast fan 320 and the outside air, by means of the pin-tube metallic pipe structure. The liquidated refrigerant, as shown in FIG. 7, is supplied to the refrigerant outlet pipe 500 to be finally supplied to the first refrigerant tank 210 of the inertial impaction-type heat exchange device 200. At this time, if the condensor assembly 300′ is installed on the rooftop and the inertial impaction-type heat exchange device 200 is installed indoor, the refrigerant is naturally moved to the first refrigerant tank 210 by the gravity without any other driving means. On the other hand, as the evaporated refrigerant in the inertial impaction-type heat exchange device 200 is moved upwardly, it is moved to the condensor assembly 300′ installed on the rooftop without any other driving means.
The blast fan 320 is installed at the upper portion of the opened supporting housing 400 to blow the natural wind to pin-tube metallic pipe 310, so the cooling effect on the heated evaporated refrigerant is improved.
On the other hand, the pin-tube metallic pipe 310 may comprise a cooling pipe 311 containing the heated refrigerant which is heated in the inertial impact ion-type heat exchange device 200, and a plurality of cooling pins 312 installed at the cooling pipe 311 to improve the cooling speed of the heated refrigerant. The plurality of cooling pins 312 are cooled by the wind of the blast fan 320. As the cooling pin 312 has a large area of surface, the effect of liquidating the evaporated refrigerant can be reinforced.
Hereinafter, another embodiment where the energy generated from the heat exchange device is recycled will be explained with FIG. 8.
FIG. 8 is an overall structural view of other embodiment of the white smoke gas reduction device 1000′, according to the one embodiment of the present invention. As shown in FIG. 8, the white smoke gas reduction device 1000′ may comprise a white smoke introduction device 100, an inertial impaction-type heat exchange device 200, and a condensor 300. Instead of the expander 400, it may further comprise a hotwell 410, an energy utilizing device 420, a cooling tank 430, and cooling water supplying mean 450 s.
As the white smoke gas introduction device 100, the inertial impaction-type heat exchange device 200, and the condensor 300 are already explained before, we will omit to explain them for the brevity.
The water is used as the refrigerant in the embodiment of FIG. 8. In case of using the water, the heated water from the inertial impaction-type heat exchange device 200 is moved to the hotwell 410. The high temperature water contained in the hotwell 410 is supplied to the energy utilizing device 420, such as electric power plant, hot-water supply device and so on. Like this, the hot water which had been utilized is supplied to the condensor 300, and it is naturally cooled down In the condensor 300. The cooled water is supplied to the cooling tank, again. The cooling water supplying means supplies the cold water to the cooling tank 430, so that it can make up for the leakage of the water in the hotwell 410, the energy utilizing device 420 and so on. This cold water is supplied to the inertial impaction-type heat exchange device 200.
According to some of the embodiments of the present invention configured as described above, the water vapor of the white smoke gas may be condensed to be removed through the inertial impaction-type heat exchange device, and also may remove both condensed water, the fine dust and the contaminated material at the same time by the effect of the impaction.
Furthermore, according to the embodiment of the present invention, the material which changed from liquid-statics to the gas-statics in the room temperature may be used as the refrigerant, the condensor 300 may be installed higher than inertial impaction-type heat exchange device. By this dispatch, the refrigerant can be circulated naturally. It may increase the economy value by simplifying the structure and lowering the cost of manufacturing.
According to the white smoke gas reduction device as described, the configuration and the method of the exemplary embodiments described above are not restrictively applied, but all or some of the respective exemplary embodiments may be combined with each other so that the exemplary embodiments may be various modified.
According to the white smoke gas reduction device as described, the configuration and the method of the exemplary embodiments described above are not restrictively applied, but all or some of the respective exemplary embodiments may be combined with each other so that the exemplary embodiments may be various modified, a bio char producing system and a bio char producing method according to am exemplary embodiment of the present document will be described in more detail with reference to the accompanying drawings.

Claims

1. A white smoke gas reduction device comprising:

a white smoke gas introduction device for introducing a white smoke gas;

an inertial impact ion-type heat exchange device for removing fine dust included in the introduced white smoke gas in the manner of the inertial impaction, for cooling the white smoke gas through neat exchange so as to be converted to low-level white smoke gas, and for removing moisture within the white smoke gas through the condensation and the impaction; and

a condenser for cooling a refrigerant, which is used for the heat exchange in the inertial the impact ion-type heat exchange device, and then returning the same to the inertial the impact ion-type heat exchange device.

2. The white smoke gas reduction device of claim 1, wherein the condenser is installed as the outside of the building to convert the refrigerant in the gas-static to the liquid-static in the manner of air-cooling.

3. The white smoke gas reduction device of claim 1, wherein the condenser is installed higher than the inertial impaction-type heat exchange device to return the refrigerant in the liquid-static to the inertial impaction-type heat exchange device by the gravity.

4. The white smoke gas reduction device of claim 3, wherein the refrigerant is changed from the liquid-static to gas-static at the room temperature.

5. The white smoke gas reduction device of claim 2, wherein the white smoke gas introduction device and the inertial impact ion-type neat exchange device are installed in the building, and the condenser is installed on a rooftop.

6. The white smoke gas reduction device of claim 1, wherein the condenser includes:

a pin-tube metallic pipe containing the refrigerant therein; and

a blast fan providing a stream of the air to the pin-tube metallic pipe.

7. The white smoke gas reduction device of claim 6, wherein the pin-tube metallic pipe includes:

a cooling pipe containing a heated refrigerant which is heated in the inertial impaction-type heat exchange device; and

a plurality of the cooling pins being sticked to the cooling pipe for improving the cooling ratio of the heated refrigerant.

8. the white smoke gas reduction device of claim 1, wherein the inertial impaction-type heat exchange device includes

a first blade installed in slope with a predetermined angle to the wind direction of the white smoke;

a second blade extended from the first blade with a bending angle; and

a heat exchange pipe installed at the connection point of the first blade and the second blade, the heat exchange pipe containing the refrigerant inside.

9. The white smoke gas reduction device of claim 8, wherein the inertial impact ion-type heat exchange device includes:

a first refrigerant tank installed at a first side of the first blade and the second blade to supply the refrigerant to the heat exchange pipe; and

a second refrigerant tank being sticked to a second side of the first blade and the second blade, the second refrigerant tank temporarily storing the refrigerant heated in the heat exchange pipe.

10. The white smoke gas reduction device of claim 9, wherein the first blade and the second blade are made with same material of the heat exchange pipe.

11. The white smoke gas reduction device of claim 9, wherein the first refrigerant tank includes a tank inlet for introducing the refrigerant returning from the condenser, and the second refrigerant tank includes a tank outlet for flowing out the heated refrigerant to the condenser.