CN220283997U - Gas-water separation treatment system - Google Patents
Gas-water separation treatment system Download PDFInfo
- Publication number
- CN220283997U CN220283997U CN202321644239.3U CN202321644239U CN220283997U CN 220283997 U CN220283997 U CN 220283997U CN 202321644239 U CN202321644239 U CN 202321644239U CN 220283997 U CN220283997 U CN 220283997U
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- China
- Prior art keywords
- gas
- liquid separator
- communicated
- water
- flash
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000000926 separation method Methods 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 62
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 23
- 230000008020 evaporation Effects 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000002351 wastewater Substances 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Physical Water Treatments (AREA)
Abstract
The utility model discloses a gas-water separation treatment system, which comprises a gas water flash evaporator, a scrubber, an expansion gas-liquid separator and a storage tank system, wherein the cooler, the cooling expansion gas-liquid separator, the flash evaporation gas-liquid separator, a centrifugal fan and a wastewater collection tank; the cooler is communicated with the cooling expansion gas-liquid separator; the cooling expansion gas-liquid separator is communicated with the wastewater collection tank; each storage tank in the storage tank system is communicated with the flash evaporation gas-liquid separator; the flash vapor-liquid separator is communicated with the centrifugal fan; the flash vapor-liquid separator is communicated with the wastewater collection tank; the flash vapor-liquid separator is communicated with a low-pressure nitrogen source, and a pressure regulating valve is arranged on a pipeline between the flash vapor-liquid separator and the low-pressure nitrogen source. The advantages are that: the influence on the environment in the running process of the gas water device is reduced, and the environmental pollution is avoided; avoiding frequent damage to the running equipment of the gas water device, thereby reducing the maintenance cost of the device.
Description
Technical field:
the utility model relates to a gas-water separation treatment system, and belongs to the field of gas-water treatment matched with crushed coal pressurized gasification.
The background technology is as follows:
the gas water is recycled as washing water in the crushed coal pressurized gasification technology, a large amount of gas water is generated, and because the gas water contains a large amount of tar and coal dust and simultaneously contains a large amount of gases such as ammonia, hydrogen sulfide, carbon monoxide and the like, the environmental impact is large, and a gas water device is generally used for treatment.
In the prior art, gasified gas water containing a large amount of components such as water vapor, tar and the like enters a gas water device, and the gas such as ammonia, hydrogen sulfide, carbon monoxide, carbon dioxide, methane and the like contained in the gas water is separated through flash evaporation expansion, so that the temperature of gasified gas water is higher, cold loss exists in the gas conveying process, the temperature reduces moisture condensation, the gas enters a multistage fan for pressurizing and then is sucked out, the water content in the fan is higher, the operating fan is frequently damaged in mechanical seal, a standby fan is bonded with a shell due to tar condensation, the fan maintenance frequency is higher, the maintenance cost is higher, and the labor intensity of field personnel is higher;
meanwhile, the temperature of the gas water after flash expansion is about 80 ℃, a large amount of flash gas is generated in each storage tank, pressure fluctuation of each normal-pressure storage tank of the gas water is caused due to the water fluctuation of the gas water, in order to avoid damage of the storage tank caused by the pressure fluctuation, when the pressure fluctuation occurs, a breather valve at the top of the storage tank is arranged to be opened, the flash gas is subjected to emptying treatment, and heat energy waste and environmental pollution are caused.
The utility model comprises the following steps:
the utility model aims to provide a gas-water separation treatment system for solving the problems.
The utility model is implemented by the following technical scheme: the gas-water separation treatment system comprises a gas-water flash evaporator, a scrubber, an expansion gas-liquid separator and a storage tank system, wherein the gas outlet of the gas-water flash evaporator is communicated with the gas inlet of the scrubber, the gas outlet of the scrubber is communicated with the gas inlet of the expansion gas-liquid separator, and the water outlet of the gas-water flash evaporator and the water outlet of the expansion gas-liquid separator are both communicated with the water inlet of the storage tank system; the device is characterized by further comprising a cooler, a cooling expansion gas-liquid separator, a flash evaporation gas-liquid separator, a centrifugal fan and a wastewater collection tank, wherein an air outlet of the expansion gas-liquid separator is communicated with an air inlet of the cooler; the air outlet of the cooler is communicated with the air inlet of the cooling expansion gas-liquid separator; the water outlet of the cooling expansion gas-liquid separator is communicated with the wastewater collection tank through a pipeline; a pressure relief valve at the top of each storage tank in the storage tank system is communicated with an air inlet of the flash evaporation gas-liquid separator through a pipeline; the air outlet of the flash evaporation gas-liquid separator is communicated with the air inlet of the centrifugal fan; the water outlet of the flash evaporation gas-liquid separator is communicated with the wastewater collection tank through a pipeline; the air inlet of the flash evaporation gas-liquid separator is communicated with the low-pressure nitrogen source through a pipeline, and a pressure regulating valve is arranged on the pipeline between the air inlet of the flash evaporation gas-liquid separator and the low-pressure nitrogen source.
The utility model has the advantages that: compared with the prior art, the method reduces the influence on the environment in the running process of the gas water device and avoids environmental pollution; frequent damage to the running equipment of the gas water device is avoided, so that the maintenance cost of the device is reduced; improves the field environment of the gas water device and reduces the workload of post personnel.
Description of the drawings:
FIG. 1 is a schematic diagram of a system connection according to the present utility model.
The specific embodiment is as follows:
example 1: as shown in fig. 1, the gas-water separation treatment system comprises a gas-water flash evaporator 1, a scrubber 2, an expansion gas-liquid separator 3, a storage tank system 4, a cooler 5, a cooling expansion gas-liquid separator 6, a flash evaporation gas-liquid separator 7, a centrifugal fan 8 and a wastewater collection tank 9; the gas outlet of the gas water flash evaporator 1 is communicated with the gas inlet of the scrubber 2, and the expansion gas generated after the gas water in the gas water flash evaporator 1 is flashed is sent into the expansion gas scrubber 2 for scrubbing; the air outlet of the scrubber 2 is communicated with the air inlet of the expansion gas-liquid separator 3, and the expansion gas after being scrubbed in the scrubber 2 enters the expansion gas-liquid separator 3 for separation; the water outlet of the gas water flash evaporator 1 and the water outlet of the expansion gas-liquid separator 2 are both communicated with the water inlet of the storage tank system 4, and the gas water subjected to flash evaporation of the gas water in the gas water flash evaporator 1 and the gas water separated by the expansion gas-liquid separator 3 are sent into the storage tank system 4; the air outlet of the expansion gas-liquid separator 3 is communicated with the air inlet of the cooler 5; the gases such as ammonia, hydrogen sulfide, carbon monoxide, carbon dioxide, methane and the like separated by the expansion gas-liquid separator 3 are sent to a cooler 5 for heat exchange, the temperature of the expansion gas is reduced, the moisture in the expansion gas is condensed, and the subsequent separation is facilitated; the air outlet of the cooler 5 is communicated with the air inlet of the cooling expansion gas-liquid separator 6, and the expansion gas cooled in the cooler 5 enters the cooling expansion gas-liquid separator 6 for separation; the water outlet of the cooling expansion gas-liquid separator 6 is communicated with the wastewater collection tank 9 through a pipeline, and the gas water separated by the cooling expansion gas-liquid separator 6 is sent into the wastewater collection tank 9 for collection, so that environmental pollution is avoided; the air outlet of the cooling expansion gas-liquid separator 6 is communicated with the air inlet of the boiler 11, and the gas separated by the cooling expansion gas-liquid separator 6 is sent into the boiler for combustion, so that environmental pollution is avoided; the pressure relief valve at the top of each storage tank 41 in the storage tank system 4 is communicated with the air inlet of the flash evaporation gas-liquid separator 7 through a pipeline, and when the system pressure fluctuates, the flash evaporation gas discharged by the storage tank 41 is sent into the flash evaporation gas-liquid separator 7 for separation; the air outlet of the flash vapor-liquid separator 7 is communicated with the air inlet of the centrifugal fan 8; the air outlet of the centrifugal fan 8 is communicated with the air inlet of the boiler 11, the gas separated by the flash vapor-liquid separator 7 is sent into the boiler for combustion through the centrifugal fan 8, so that the environment is prevented from being polluted, meanwhile, the water content and the tar content of the gas separated by the flash vapor-liquid separator 7 are greatly reduced, the running time of the centrifugal fan 8 is prolonged, the maintenance frequency of the centrifugal fan 8 is reduced, and the maintenance cost of the centrifugal fan 8 is reduced; the water outlet of the flash vapor-liquid separator 7 is communicated with the waste water collecting tank 9 through a pipeline, and the gas water separated by the flash vapor-liquid separator 7 is sent into the waste water collecting tank 9 for collection, so that environmental pollution is avoided; the air inlet of the flash vapor-liquid separator 7 is communicated with a low-pressure nitrogen source 10 through a pipeline, a pressure regulating valve 12 is arranged on the pipeline between the air inlet of the flash vapor-liquid separator 7 and the low-pressure nitrogen source 10, and nitrogen is timely supplemented from the low-pressure nitrogen source 10 when the system pressure is low through the pressure regulating valve 12, so that pressure fluctuation of each storage tank system 4 is avoided.
Description of use: flash evaporation and expansion are carried out on the gas water through a gas water flash evaporator 1, flash evaporation gas of 35-40 kPa is washed through a washer 2, enters a cooler 5 and is cooled to 75 ℃ and then passes through a cooling expansion gas-liquid separator 6, and the gas after water separation is carried out on the gas and is sent to a hot spot device for direct burning; flash gas of each storage tank of the gas water passes through a flash gas-liquid separator 7, and the separated gas is pressurized to 15kPa by a single fan and then is directly sent to a thermoelectric device for incineration; the centrifugal fan 8 is a variable frequency fan, the frequency of the centrifugal fan 8 is automatically controlled according to the inlet pressure, the pressure of the storage tanks 41 is controlled to be between 0.5 and 1kPa, meanwhile, a low-pressure nitrogen gas is matched into the flash evaporation gas system, the pressure is controlled through the pressure regulating valve 12, when the pressure of the storage tanks 41 is lower than 0.5kPa and the centrifugal fan 8 operates at the lowest frequency, the nitrogen regulating valve 12 is opened to supplement nitrogen gas, the storage tanks 41 are prevented from being lower than 0kPa, and air enters the storage tanks 41 from the breathing valve to form explosive mixed gas.
Claims (1)
1. The gas-water separation treatment system comprises a gas-water flash evaporator, a scrubber, an expansion gas-liquid separator and a storage tank system, wherein the gas outlet of the gas-water flash evaporator is communicated with the gas inlet of the scrubber, the gas outlet of the scrubber is communicated with the gas inlet of the expansion gas-liquid separator, and the water outlet of the gas-water flash evaporator and the water outlet of the expansion gas-liquid separator are both communicated with the water inlet of the storage tank system; the device is characterized by further comprising a cooler, a cooling expansion gas-liquid separator, a flash evaporation gas-liquid separator, a centrifugal fan and a wastewater collection tank, wherein an air outlet of the expansion gas-liquid separator is communicated with an air inlet of the cooler; the air outlet of the cooler is communicated with the air inlet of the cooling expansion gas-liquid separator; the water outlet of the cooling expansion gas-liquid separator is communicated with the wastewater collection tank through a pipeline; a pressure relief valve at the top of each storage tank in the storage tank system is communicated with an air inlet of the flash evaporation gas-liquid separator through a pipeline; the air outlet of the flash evaporation gas-liquid separator is communicated with the air inlet of the centrifugal fan; the water outlet of the flash evaporation gas-liquid separator is communicated with the wastewater collection tank through a pipeline; the air inlet of the flash evaporation gas-liquid separator is communicated with the low-pressure nitrogen source through a pipeline, and a pressure regulating valve is arranged on the pipeline between the air inlet of the flash evaporation gas-liquid separator and the low-pressure nitrogen source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321644239.3U CN220283997U (en) | 2023-06-27 | 2023-06-27 | Gas-water separation treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321644239.3U CN220283997U (en) | 2023-06-27 | 2023-06-27 | Gas-water separation treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220283997U true CN220283997U (en) | 2024-01-02 |
Family
ID=89340949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321644239.3U Active CN220283997U (en) | 2023-06-27 | 2023-06-27 | Gas-water separation treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220283997U (en) |
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2023
- 2023-06-27 CN CN202321644239.3U patent/CN220283997U/en active Active
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