CN203247240U - Gas cooling dehydration system - Google Patents
Gas cooling dehydration system Download PDFInfo
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- CN203247240U CN203247240U CN 201320196209 CN201320196209U CN203247240U CN 203247240 U CN203247240 U CN 203247240U CN 201320196209 CN201320196209 CN 201320196209 CN 201320196209 U CN201320196209 U CN 201320196209U CN 203247240 U CN203247240 U CN 203247240U
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Abstract
The utility model discloses a gas cooling dehydration system, and solves the problems that the conventional gas dehydration system is complex in structure and huge in gas pressure loss. The gas cooling dehydration system comprises a wet gas holder, a gas output tube, a compressor, an air condenser, a heat exchanger and a fuel gas inlet, wherein the wet gas holder (1) is communicated with the air inlet of the compressor (3) through the gas output tube (2), the air outlet of the compressor (3) is communicated with the air inlet of the air condenser (4), the air outlet of the air condenser (4) is communicated with the air inlet of the heat exchanger (7), the air outlet of the heat exchanger (7) is communicated with the gas inlet (12), an air condenser water discharging opening (5) is formed in the air condenser (4), the coolant output opening of the heat exchanger (7) is communicated with the coolant input opening of a refrigerator (9), the coolant output opening of the refrigerator (9) is communicated of the coolant input opening of the heat exchanger (7) through a circulating pump (10), and heat exchanger water discharging opening (11) is formed in the heat exchanger (7). The system provided by the utility model has the advantages of being small the pressure loss and good in dehumidification effect.
Description
Technical field
The utility model relates to a kind of methane gas dewatering unit, and is particularly a kind of to carry out the device of cooling and dewatering through the methane gas after the wet gasholder pressurization.
Background technology
Set up the permanent gas drainage system in ground on the ground of gassy mine, utilize the methane electrical generation that mine releases or be used for the resident living combustion gas, adopted more and more widely.In order to guarantee the continuity of air feed, be provided with the floating roof formula gas holder of larger volume at ground segment, and the sealing of gas holder also is to rely on water seal airtight.There is certain distance in ground gas holder to power station, and low-pressure delivery can not meet the demands, generally at the gas pump station system made compression system.Rising in the simultaneous temperature that gas is pressurizeed, make and contain a large amount of vaporous waters in the coal mine gas, in length is carried apart from gas, along with the reduction of temperature, a large amount of moisture that will freeze-out in the steam line, this part moisture will be discharged by the condenser cylinder that pipeline arranges on the way.Ducted condensed water is serious to the Gas Pipeline Corrosion that adopts steel pipe; When moving in the winter time simultaneously, because temperature is lower, will produce the phenomenons such as icing, obstruction.Affect normal air feed, cause very large financial loss.Prior art is to adopt the mode of absorption to reach the purpose of dehydration, all there are complex structure in these techniques, large to pressure loss, reliability is relatively poor, investment and the larger problem of running cost.
Summary of the invention
The utility model provides a kind of coal mine gas cooling and dewatering system, has solved the complex structure that existing gas dewatering system exists, and pressure loss is large, and reliability is relatively poor, investment and the high technical problem of running cost.
A kind of coal mine gas cooling and dewatering system, comprise the wet type gas holder, compressor, atmospheric condenser and heat exchanger, the wet type gas holder is communicated with the air intake of compressor by the coal mine gas output tube, the air outlet of compressor is communicated with the air intake of atmospheric condenser, the air outlet of atmospheric condenser is communicated with the air intake of heat exchanger, the air outlet of heat exchanger is communicated with fuel gas network gas transmission entrance, be provided with the atmospheric condenser water port at atmospheric condenser, the refrigerant delivery port of heat exchanger is communicated with the refrigerant input aperture of refrigerator, the refrigerant delivery port of refrigerator is communicated with the refrigerant input aperture of heat exchanger by recycle pump, is provided with the heat exchanger water port at heat exchanger.
Between the air intake of the air outlet of compressor and heat exchanger, be provided with the atmospheric condenser by-pass line, between the air outlet of the air intake of heat exchanger and heat exchanger, be provided with heat exchanger bypass.
It is little to the utlity model has the pressure-losses, the obvious effect of effect on moisture extraction.By valve being arranged to motorized valve and manual valve, motorized valve can satisfy fully automatic operation by programmable controller realization system, and system's control technique is simple, can control start and stop by Central Control Room, has independently steam trap connection, can realize self-draining function.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of coal mine gas cooling and dewatering system, comprise wet type gas holder 1, compressor 3, atmospheric condenser 4 and heat exchanger 7, wet type gas holder 1 is communicated with the air intake of compressor 3 by coal mine gas output tube 2, the air outlet of compressor 3 is communicated with the air intake of atmospheric condenser 4, the air outlet of atmospheric condenser 4 is communicated with the air intake of heat exchanger 7, the air outlet of heat exchanger 7 is communicated with fuel gas network gas transmission entrance 12, be provided with atmospheric condenser water port 5 at atmospheric condenser 4, the refrigerant delivery port of heat exchanger 7 is communicated with the refrigerant input aperture of refrigerator 9, the refrigerant delivery port of refrigerator 9 is communicated with the refrigerant input aperture of heat exchanger 7 by recycle pump 10, is provided with heat exchanger water port 11 at heat exchanger 7.
Between the air intake of the air outlet of compressor 3 and heat exchanger 7, be provided with atmospheric condenser by-pass line 6, between the air outlet of the air intake of heat exchanger 7 and heat exchanger 7, be provided with heat exchanger bypass 8.
Concrete steps of the present utility model are as follows:
After coal mine gas process wet type gas holder 1 and compressor 3 pressurizations, the pipeline in the exit increases by a cover atmospheric condenser 4, is down to 45 ℃ by air-cooled temperature to methane gas, carries out primary dewatering, discharges liquid water by automatic steam trap.The refrigerant of atmospheric condenser 4 is outside air, and power is provided by blower fan.Be connected to heat exchanger 7 through the primary dewatering coal mine gas by pipeline, make the coal mine gas temperature in the pipeline be down to 15 ℃ by 45 ℃ by heat exchange, carry out second dehydration, discharge liquid water by automatic steam trap.The low-temperature receiver of second dehydration is provided by refrigerator 9, and power is provided by recycle pump 10.
By above two-stage refrigerated separation, the temperature of system outlet methane gas is controlled at 15 ℃, by reducing air outlet temperature and water ratio, guarantee gas line of pipes safe and stable operation.
Claims (2)
1. coal mine gas cooling and dewatering system, comprise wet type gas holder (1), compressor (3), atmospheric condenser (4) and heat exchanger (7), it is characterized in that, wet type gas holder (1) is communicated with the air intake of compressor (3) by coal mine gas output tube (2), the air outlet of compressor (3) is communicated with the air intake of atmospheric condenser (4), the air outlet of atmospheric condenser (4) is communicated with the air intake of heat exchanger (7), the air outlet of heat exchanger (7) is communicated with fuel gas network gas transmission entrance (12), be provided with atmospheric condenser water port (5) at atmospheric condenser (4), the refrigerant delivery port of heat exchanger (7) is communicated with the refrigerant input aperture of refrigerator (9), the refrigerant delivery port of refrigerator (9) is communicated with the refrigerant input aperture of heat exchanger (7) by recycle pump (10), is provided with heat exchanger water port (11) at heat exchanger (7).
2. a kind of coal mine gas cooling and dewatering according to claim 1 system, it is characterized in that, between the air intake of the air outlet of compressor (3) and heat exchanger (7), be provided with atmospheric condenser by-pass line (6), between the air outlet of the air intake of heat exchanger (7) and heat exchanger (7), be provided with heat exchanger bypass (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320196209 CN203247240U (en) | 2013-04-10 | 2013-04-10 | Gas cooling dehydration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320196209 CN203247240U (en) | 2013-04-10 | 2013-04-10 | Gas cooling dehydration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203247240U true CN203247240U (en) | 2013-10-23 |
Family
ID=49373691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320196209 Expired - Fee Related CN203247240U (en) | 2013-04-10 | 2013-04-10 | Gas cooling dehydration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203247240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609224A (en) * | 2018-12-04 | 2019-04-12 | 南京工程学院 | Water removal cooling device and its implementation for shale gas |
-
2013
- 2013-04-10 CN CN 201320196209 patent/CN203247240U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609224A (en) * | 2018-12-04 | 2019-04-12 | 南京工程学院 | Water removal cooling device and its implementation for shale gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20180410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |