CN221788770U - Acid gas recovery device - Google Patents
Acid gas recovery device Download PDFInfo
- Publication number
- CN221788770U CN221788770U CN202323501279.5U CN202323501279U CN221788770U CN 221788770 U CN221788770 U CN 221788770U CN 202323501279 U CN202323501279 U CN 202323501279U CN 221788770 U CN221788770 U CN 221788770U
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- Prior art keywords
- coil
- water tank
- inner cavity
- acid
- water
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- 239000002253 acid Substances 0.000 title claims abstract description 94
- 238000011084 recovery Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 9
- 238000006386 neutralization reaction Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
- -1 acid rain Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to the technical field of acid tail gas recovery, in particular to an acid gas recovery device, which comprises a recovery component and an emission component; the recovery assembly comprises a heat exchanger, a water tank and a pump; the heat exchanger comprises an acid gas coil, a heat exchange coil and an acid liquor coil, wherein the air outlet end of the acid gas coil is communicated with the inner cavity of the water tank, the heat exchange coil at least exchanges heat with the acid liquor coil, and the water outlet end of the acid liquor coil is communicated with the inner cavity of the water tank; the water inlet end of the pump is communicated with the inner cavity of the water tank, and the water outlet end of the pump is communicated with the water inlet end of the acid liquor coil pipe; the discharging assembly comprises a fan and a high-altitude discharging tower, wherein an air inlet end pipeline of the fan is connected with an inner cavity of the water tank, and an air outlet end pipeline of the fan is connected with an inner cavity of the high-altitude discharging tower. The utility model can recycle a large amount of acid gas and reduce the equipment amount of an exhaust gas treatment system.
Description
Technical Field
The utility model relates to the technical field of acid tail gas recovery, in particular to an acid gas recovery device.
Background
The acid can react with water, soil and the like in the environment to form pollutants such as acid rain, acid mist and the like, and serious pollution is caused to the environment, so that the tail gas treatment of the acid gas is necessary for a chemical plant. Most of the existing treatment systems adopt an acid-base neutralization mode, and because of higher acidity during the discharge of a large amount of acid gas, the equipment amount of the tail gas treatment system is large, the use cost is higher, and the waste liquid obtained after neutralization cannot be reused.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: provided is an acid gas recovery device capable of recovering a large amount of acid gas and reducing the equipment amount of an exhaust gas treatment system.
In order to solve the technical problems, the utility model adopts the following technical scheme: an acid gas recovery apparatus comprising a recovery assembly and a discharge assembly; the recovery assembly comprises a heat exchanger, a water tank and a pump; the heat exchanger comprises an acid gas coil, a heat exchange coil and an acid liquor coil, wherein the air outlet end of the acid gas coil is communicated with the inner cavity of the water tank, the heat exchange coil at least exchanges heat with the acid liquor coil, and the water outlet end of the acid liquor coil is communicated with the inner cavity of the water tank; the water inlet end of the pump is communicated with the inner cavity of the water tank, and the water outlet end of the pump is communicated with the water inlet end of the acid liquor coil pipe;
The discharging assembly comprises a fan and a high-altitude discharging tower, wherein an air inlet end pipeline of the fan is connected with an inner cavity of the water tank, and an air outlet end pipeline of the fan is connected with an inner cavity of the high-altitude discharging tower.
Further, a spray water tower is arranged on a pipeline connected with the water tank at the air outlet end of the fan, the air inlet end of the spray water tower is positioned at the bottom of the inner cavity of the spray water tower, the air outlet end of the spray water tower is positioned at the top of the inner cavity of the spray water tower, and a spray water pipe is arranged in the inner cavity of the spray water tower.
Further, at least two spray towers connected in series are arranged on a pipeline connected with the water tank at the air outlet end of the fan.
Further, an active carbon box is arranged on a pipeline connected with the water tank at the air outlet end of the fan.
Further, at least the acid gas coil pipe of the heat exchanger is a graphite pipe.
The utility model has the beneficial effects that: the recovery component is additionally arranged, acid gas is injected into the water tank through the acid gas coil pipe, so that the acid gas is dissolved in water to obtain acid liquor, and meanwhile, a large amount of heat is generated when the acid gas with higher acidity is dissolved in water, so that the acid liquor is pumped into the acid liquor coil pipe through the pump, the acid liquor can flow into the water tank again after exchanging heat with cooling liquid in the heat exchange coil pipe, and the acid liquor after cooling can be continuously absorbed by the acid gas in the water tank which is continuously injected. And finally, pumping air containing a small amount of acid gas out of the water tank through a fan, purifying through a tail gas treatment system, and finally discharging the air from a high-altitude discharge tower. Therefore, the equipment amount of the tail gas treatment system can be reduced, and the acid liquor obtained in the water tank can be recycled for industrial production.
Drawings
FIG. 1 is a schematic diagram of a system configuration of an acid gas recovery apparatus according to an embodiment of the present utility model;
description of the reference numerals:
1. A recovery assembly; 11. a heat exchanger; 111. sour gas coil pipe; 112. a heat exchange coil; 113. an acid liquor coil pipe; 12. a water tank; 13. a pump machine;
2. a discharge assembly; 21. a blower; 22. a high-altitude discharge tower;
3. spraying a water tower; 31. a shower pipe;
4. An activated carbon box.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The acid can react with water, soil and the like in the environment to form pollutants such as acid rain, acid mist and the like, and serious pollution is caused to the environment, so that the tail gas treatment of the acid gas is necessary for a chemical plant. Most of the existing treatment systems adopt an acid-base neutralization mode, and because of higher acidity during the discharge of a large amount of acid gas, the equipment amount of the tail gas treatment system is large, the use cost is higher, and the waste liquid obtained after neutralization cannot be reused.
In view of the above, the present application provides an acid gas recovery device capable of solving the problem of high acid gas purification cost.
Referring to fig. 1, an acid gas recovery apparatus of the present utility model includes a recovery assembly 1 and a discharge assembly 2; the recovery assembly 1 comprises a heat exchanger 11, a water tank 12 and a pump 13; the heat exchanger 11 comprises an acid gas coil 111, a heat exchange coil 112 and an acid liquid coil 113, wherein the air outlet end of the acid gas coil 111 is communicated with the inner cavity of the water tank 12, the heat exchange coil 112 at least exchanges heat with the acid liquid coil 113, and the water outlet end of the acid liquid coil 113 is communicated with the inner cavity of the water tank 12; the water inlet end of the pump 13 is communicated with the inner cavity of the water tank 12, and the water outlet end of the pump 13 is communicated with the water inlet end of the acid liquor coil 113;
The exhaust assembly 2 comprises a fan 21 and a high-altitude exhaust tower 22, wherein an air inlet end pipeline of the fan 21 is connected with the inner cavity of the water tank 12, and an air outlet end pipeline of the fan 21 is connected with the inner cavity of the high-altitude exhaust tower 22.
From the above description, the beneficial effects of the utility model are as follows: the recovery assembly 1 is additionally arranged, acid gas is injected into the water tank 12 through the acid gas coil 111, so that the acid gas is dissolved in water to obtain acid liquor, and meanwhile, a large amount of heat is generated when the acid gas with higher acidity is dissolved in water, so that the acid liquor is pumped into the acid liquor coil 113 through the pump 13, the acid liquor exchanges heat with cooling liquid in the heat exchange coil 112 and then flows back into the water tank 12, and the cooled acid liquor can be continuously ensured to be absorbed by the acid gas in the water tank 12 which is continuously injected. Finally, air containing a small amount of acid gas is extracted from the water tank 12 through the fan 21, then purified through the tail gas treatment system, and finally discharged by the overhead discharge tower 22. Thus, not only the equipment amount of the tail gas treatment system can be reduced, but also the acid liquid obtained in the water tank 12 can be recycled for industrial production.
Further, a spray water tower 3 is arranged on a pipeline connected with the water tank 12 at the air outlet end of the fan 21, the air inlet end of the spray water tower 3 is positioned at the bottom of the inner cavity of the spray water tower 3, the air outlet end of the spray water tower 3 is positioned at the top of the inner cavity of the spray water tower 3, and a spray water pipe 31 is arranged in the inner cavity of the spray water tower 3.
As can be seen from the above description, the fan 21 pumps the air containing a small amount of acid gas pumped from the water tank 12 into the shower water tower 3, and the shower water pipe 31 sprays clean water to further absorb the acid gas in the air to obtain acid liquor, so that the use pressure of the subsequent tail gas treatment system is further slowed down.
In an alternative embodiment, the acid solution obtained after the spray header 31 sprays clear water to absorb acid gas can be sprayed in the inner cavity of the spray header 3 in a circulating way through the spray header 31.
Further, at least two spray towers 3 connected in series are arranged on a pipeline connected with the water tank 12 at the air outlet end of the fan 21.
From the above description, it is known that the provision of a plurality of spray towers 3 can recover the acid gas as much as possible and slow down the use pressure of the subsequent tail gas treatment system.
Further, an activated carbon tank 4 is arranged on a pipeline connected with the water tank 12 at the air outlet end of the fan 21.
From the above description, it is known that the residual acid gas is absorbed by the activated carbon using the activated carbon tank 4 (i.e., the exhaust gas treatment system), thereby securing the emission standard.
Further, at least the sour gas coil 111 of the heat exchanger 11 is a graphite tube.
From the above description, it is apparent that since the acid gas having high acidity is highly corrosive, at least the acid gas coil 111 is formed as a graphite pipe, and the service life of the heat exchanger 11 is improved by using the corrosion resistance of the graphite pipe.
Example 1
Referring to fig. 1, an acid gas recovery device includes a recovery assembly 1 and a discharge assembly 2; the recovery assembly 1 comprises a heat exchanger 11, a water tank 12 and a pump 13; the heat exchanger 11 comprises an acid gas coil 111, a heat exchange coil 112 and an acid liquid coil 113, wherein the air outlet end of the acid gas coil 111 is communicated with the inner cavity of the water tank 12, the heat exchange coil 112 at least exchanges heat with the acid liquid coil 113, and the water outlet end of the acid liquid coil 113 is communicated with the inner cavity of the water tank 12; the water inlet end of the pump 13 is communicated with the inner cavity of the water tank 12, and the water outlet end of the pump 13 is communicated with the water inlet end of the acid liquor coil 113; the exhaust assembly 2 comprises a fan 21 and a high-altitude exhaust tower 22, wherein an air inlet end pipeline of the fan 21 is connected with the inner cavity of the water tank 12, and an air outlet end pipeline of the fan 21 is connected with the inner cavity of the high-altitude exhaust tower 22. Two spray towers 3 are arranged in series on a pipeline with the air outlet end of the fan 21 connected with the water tank 12, the air inlet end of the spray towers 3 is positioned at the bottom of the inner cavity of the spray towers 3, the air outlet end of the spray towers 3 is positioned at the top of the inner cavity of the spray towers 3, and spray pipes 31 are arranged in the inner cavity of the spray towers 3. An activated carbon tank 4 is arranged on a pipeline connected with the water tank 12 at the air outlet end of the fan 21.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (5)
1. An acid gas recovery device, characterized in that: comprising a recovery assembly and a discharge assembly; the recovery assembly comprises a heat exchanger, a water tank and a pump; the heat exchanger comprises an acid gas coil, a heat exchange coil and an acid liquor coil, wherein the air outlet end of the acid gas coil is communicated with the inner cavity of the water tank, the heat exchange coil at least exchanges heat with the acid liquor coil, and the water outlet end of the acid liquor coil is communicated with the inner cavity of the water tank; the water inlet end of the pump is communicated with the inner cavity of the water tank, and the water outlet end of the pump is communicated with the water inlet end of the acid liquor coil pipe;
The discharging assembly comprises a fan and a high-altitude discharging tower, wherein an air inlet end pipeline of the fan is connected with an inner cavity of the water tank, and an air outlet end pipeline of the fan is connected with an inner cavity of the high-altitude discharging tower.
2. The acid gas recovery device according to claim 1, wherein: the air outlet end of the fan is connected with the water tank, a spray water tower is arranged on a pipeline connected with the water tank, the air inlet end of the spray water tower is positioned at the bottom of the inner cavity of the spray water tower, the air outlet end of the spray water tower is positioned at the top of the inner cavity of the spray water tower, and a spray water pipe is arranged in the inner cavity of the spray water tower.
3. The acid gas recovery device according to claim 2, wherein: at least two spray water towers connected in series are arranged on a pipeline connected with the water tank at the air outlet end of the fan.
4. The acid gas recovery apparatus according to claim 1 or 2, characterized in that: an active carbon box is arranged on a pipeline connected with the water tank at the air outlet end of the fan.
5. The acid gas recovery device according to claim 1, wherein: at least the acid gas coil pipe of the heat exchanger is a graphite pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202323501279.5U CN221788770U (en) | 2023-12-20 | 2023-12-20 | Acid gas recovery device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202323501279.5U CN221788770U (en) | 2023-12-20 | 2023-12-20 | Acid gas recovery device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN221788770U true CN221788770U (en) | 2024-10-01 |
Family
ID=92887357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202323501279.5U Active CN221788770U (en) | 2023-12-20 | 2023-12-20 | Acid gas recovery device |
Country Status (1)
Country | Link |
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CN (1) | CN221788770U (en) |
-
2023
- 2023-12-20 CN CN202323501279.5U patent/CN221788770U/en active Active
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