CN204984367U - Coal bed gas ground air water is with adopting device - Google Patents
Coal bed gas ground air water is with adopting device Download PDFInfo
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- CN204984367U CN204984367U CN201520449960.6U CN201520449960U CN204984367U CN 204984367 U CN204984367 U CN 204984367U CN 201520449960 U CN201520449960 U CN 201520449960U CN 204984367 U CN204984367 U CN 204984367U
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Abstract
The utility model provides a coal bed gas ground air water is with adopting device, including the pit shaft, the pipeline, a gas -liquid separator, the negative pressure pump, the coal bed gas is carried main line and first coal bed gas and is recycled the pipeline, the upper end lateral part of pit shaft has the flushing fluid entry, the gas -liquid entry end is connected with the negative pressure delivery side of pump, the coal bed gas exit end is connected with coal bed gas transport main line, first coal bed gas is recycled the pipeline and is included first valve, compressor and first check valve, the one end of first valve is connected on the main line is carried to the coal bed gas, the other end of first valve is connected with the entry end of compressor, the exit end of compressor is connected with the entry end of first check valve, the exit end of first check valve passes through tube coupling to flushing fluid and enters the mouth. The utility model discloses the coal seam air current that utilizes the negative pressure to form carries coal seam water, buggy no. 1 plays ground, has cancelled solitary pumping system, and the fairly obvious time between failures of energy -conserving effect is showing the row who increases and can make the coal bed gas and is adopting and accord with the natural law more.
Description
Technical field
The utility model belongs to cbm development technical field, relates to a kind of coal bed gas drainage device.
Background technology
Application number be 201520076525.3 Chinese patent disclose one " coal bed gas negative pressure on ground drainage device ", this application has the following disadvantages in use:
1, this device needs independent a set of pumping system, needs consumed power 264.00 kilowatt hour every day;
2, this device is provided with suction pump in shaft bottom, and suction pump in use can produce mechanical wear, and the equipment overhaul cycle caused due to mechanical wear is 285 days, each recondition expense 3.5 ten thousand yuan.
Summary of the invention
For solving the technical problem that the power consumption of existing coal bed gas negative pressure on ground drainage device is large, mechanical wear is large, recondition expense is high, the utility model provides the same device for picking of a kind of coal bed gas ground air water.
The same device for picking of coal bed gas ground air water, comprise pit shaft, pipeline and negative pressure pump, one end of described pipeline is arrival end, and the other end of described pipeline is the port of export, and described arrival end extend into well until below coal seam from the entrance of pit shaft, the described port of export is positioned at ground and is connected with the arrival end of negative pressure pump, seal between described pipeline and the entrance of pit shaft, have gap between described pipeline and shaft in wall, described gap forms flushing fluid passage, the upper end sidepiece of described pit shaft has flushing fluid entrance
Its special character is: described coal bed gas ground air water also comprises gas-liquid separator, coal bed gas conveying main line and the first coal bed gas re-injection pipeline with device for picking,
Described gas-liquid separator comprises gas-liquid arrival end, the coal bed gas port of export and the formation water port of export, and described gas-liquid arrival end is connected with negative pressure delivery side of pump, and the described formation water port of export discharges formation water, and the described coal bed gas port of export and coal bed gas carry main line to be connected,
Described first coal bed gas re-injection pipeline comprises the first valve, compressor and the first one way valve, one end of described first valve is connected on coal bed gas conveying main line, the described other end of the first valve is connected with the arrival end of compressor, the port of export of described compressor is connected with the arrival end of the first one way valve, and the port of export of described first one way valve is connected to flushing fluid entrance by pipeline.
Above-mentioned coal bed gas ground air water also comprises with device for picking the second coal bed gas re-injection pipeline arranged that to walk abreast with the first coal bed gas re-injection pipeline, described second coal bed gas re-injection pipeline comprises the second valve and the second one way valve, one end of described second valve is connected on coal bed gas conveying main line, the other end of described second valve is connected with the entrance of the second one way valve, and the outlet of described second one way valve is connected with the outlet of the first one way valve.
Above-mentioned coal bed gas ground air water also comprises formation water recycle unit with device for picking, described formation water recycle unit comprises cooler and cyclic water tank, described cyclic water tank comprises the first entrance and the first outlet, the entrance of described cooler is connected with the formation water port of export of gas-liquid separator, the outlet of described cooling water is connected with the first entrance of cyclic water tank by the 3rd valve, and the first outlet of described cyclic water tank is connected with the cooling water pipeline of vacuum pump.
Above-mentioned coal bed gas ground air water also comprises coal dust cleaning equipment with device for picking, and described coal dust cleaning equipment also comprises sewage reservoir and centrifuge, and described cyclic water tank also comprises the second entrance and the second outlet,
The entrance of described sewage reservoir is connected with the formation water port of export of gas-liquid separator by the 5th valve, the outlet of described sewage reservoir is connected with the entrance of centrifuge, described centrifuge has the first outlet and the second outlet, described first outlet is connected to the export pipeline of cooler by the 6th valve, described second outlet is connected directly to the second entrance of cyclic water tank, and the second outlet of described cyclic water tank is connected with flushing fluid entrance by the 4th valve.
Also be provided with the 3rd one way valve between above-mentioned negative pressure pump entrance and pipe outlet, the entrance of described 3rd one way valve is connected with the port of export of pipeline, and the outlet of described 3rd one way valve is connected with the entrance of negative pressure pump.
The above-mentioned coal bed gas port of export and coal bed gas are carried between main line entrance and are also provided with the 4th one way valve, and the entrance of described 4th one way valve is connected with the coal bed gas port of export, and the outlet of described 4th one way valve carries main line entrance to be connected with coal bed gas.
Above-mentioned negative pressure pump is vacuum pump.
Above-mentioned pipeline is oil pipe.
Compared with prior art, advantage is the utility model:
The coal seam air-flow that the utility model utilizes negative pressure to be formed, carry coal seam water, coal dust one plays ground, eliminate independent pumping system, this technology has following characteristics:
1, energy-saving effect is fairly obvious: conventional apparatus needs independent a set of pumping system, needs consumed power 264.00 kilowatt hour every day, and after adopting this device, shaft bottom is produced water and discharged ground in company with coal bed gas together in the mode of gas-liquid mixed.
2, time between failures significantly increases: before not adopting this device, the equipment overhaul cycle caused due to mechanical wear is 285 days, and each recondition expense 3.5 ten thousand yuan, after adopting this device, due to the wearing and tearing of down-hole mechanical, completely avoid because of the overhaul of the equipments caused of wearing and tearing.
3, the mining of coal bed gas can be made more to meet the natural law: coal bed gas extraction has slow, continuous, long-term feature, particularly higher to the sensitivity of pressure, due to overhaul of the equipments frequently in reality, make coal seam pressure occur sharply to change, thus affect continuing and promoting of output; After employing air water is with excavating technology, due to mechanical friction in pit shaft, thus the maintenance of equipment that friction is caused is stopped, and has eradicated this harm.
Accompanying drawing explanation
Fig. 1 is device connection layout of the present utility model;
Fig. 2 is fundamental diagram of the present utility model.
Wherein Reference numeral is: 1-negative pressure pump, 2-compressor, 3-gas-liquid separator, 4-pipeline, 5-cyclic water tank, 6-cooler, 7-sewage reservoir, 8-centrifuge, 9-second valve, 10-first valve, 11-the 5th valve, 12-the 3rd valve, 13-the 6th valve, 14-the 4th valve, 15-flushing fluid entrance, 16-second one way valve, 17-first one way valve, 18-the 3rd one way valve, 19-the 4th one way valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
The same device for picking of coal bed gas ground air water, comprises pit shaft, pipeline 4, negative pressure pump 1, gas-liquid separator 3, coal bed gas conveying main line, the first coal bed gas re-injection pipeline, the second coal bed gas re-injection pipeline, formation water recycle unit and coal dust cleaning equipment.One end of pipeline 4 is arrival end, the other end of pipeline 4 is the port of export, arrival end extend into well until below coal seam from the entrance of pit shaft, the port of export is positioned at ground and is connected with the arrival end of negative pressure pump, seal between pipeline and the entrance of pit shaft, have gap between pipeline and shaft in wall, gap forms flushing fluid passage, and the upper end sidepiece of described pit shaft has flushing fluid entrance.Gas-liquid separator 3 comprises gas-liquid arrival end, the coal bed gas port of export and the formation water port of export, and gas-liquid arrival end is connected with negative pressure delivery side of pump, and the formation water port of export discharges formation water, and the coal bed gas port of export and coal bed gas carry main line to be connected.First coal bed gas re-injection pipeline comprises the first valve 10, compressor 2 and the first one way valve 17, one end of first valve 10 is connected on coal bed gas conveying main line, the other end of the first valve 10 is connected with the arrival end of compressor 2, the port of export of compressor 2 is connected with the arrival end of the first one way valve 17, and the port of export of the first one way valve 17 is connected to flushing fluid entrance 15 by pipeline.
Above structure is basic structure of the present invention, the operating principle of this basic structure is: at the beginning of device starts or when the shaft bottom water yield increases suddenly, open negative pressure pump 1 and the first valve 10, open the compressor 2 of the first coal bed gas re-injection pipeline, compressor 2 sends into shaft bottom by flushing fluid entrance 15 after being pressurizeed by pipeline gas, increase the gas-liquid mixed ratio of the pipe head in shaft bottom, make gas-liquid mixed ratio maintain a scope, rely on negative pressure pump 1 by coal bed gas and formation water extraction simultaneously.
Further, after coal bed gas ground air water starts with device for picking, the gas production of coal bed gas is less than expection, selectively opened first coal bed gas re-injection pipeline or the second coal bed gas re-injection pipeline, increase the gas-liquid mixed ratio of the pipe head in shaft bottom, the formation water only relying on negative pressure pump to carry out is carried out.
Second coal bed gas re-injection pipeline of the present utility model and the second coal bed gas re-injection pipeline walk abreast and arrange, second coal bed gas re-injection pipeline comprises the second valve 9 and the second one way valve 16, one end of second valve 9 is connected on coal bed gas conveying main line, the other end of the second valve 9 is connected with the entrance of the second one way valve 16, and the outlet of the second one way valve 16 is connected with the outlet of the first one way valve 17.
After coal bed gas ground air water normally works with device for picking, closing the first coal bed gas re-injection pipeline and the second coal bed gas re-injection pipeline, only relying on negative pressure pump 1 to carry out aqueous vapor with adopting.
Further, coal bed gas ground of the present utility model air water also comprises formation water recycle unit with device for picking, rely on this formation water recycle unit can cool for negative pressure pump, formation water recycle unit comprises cooler and cyclic water tank, cyclic water tank comprises the first entrance and the first outlet, the entrance of cooler is connected with the formation water port of export of gas-liquid separator, the outlet of cooling water is connected with the first entrance of cyclic water tank 5 by the 3rd valve 12, and the first outlet of cyclic water tank 5 is connected with the cooling water pipeline of negative pressure pump 1.
When needs cool negative pressure pump 1, open the 3rd valve 12, again negative pressure pump is cooled after gas-liquid separator formation water out enters cyclic water tank 5 after cooler cooling.
Further, when carrying out coal dust and giving prominence to, need to rely on water filling to clean coal seam, shaft bottom, guarantee shaft bottom is clean, increases permeability, improves output, therefore, coal bed gas ground of the present utility model air water also comprises coal dust cleaning equipment with device for picking, and coal dust cleaning equipment also comprises sewage reservoir 7 and centrifuge 8, and cyclic water tank 5 also comprises the second entrance and the second outlet.The entrance of sewage reservoir 7 is connected with the formation water port of export of gas-liquid separator 3 by the 5th valve 11, the outlet of sewage reservoir 7 is connected with the entrance of centrifuge 8, centrifuge 8 has the first outlet and the second outlet, first outlet is connected to the export pipeline of cooler 6 by the 6th valve 13, second outlet is connected directly to the second entrance of cyclic water tank 5, and the second outlet of cyclic water tank 5 is connected with flushing fluid entrance by the 4th valve 14.
When needs clean coal seam, shaft bottom, open the 5th valve 11, the 4th valve 14 and the 3rd valve 12, from gas-liquid separator formation water out after sewage reservoir 7 precipitates, cyclic water tank is sent into through the further centrifugal treating of centrifuge, flowed out by the outlet of cyclic water tank and enter flushing fluid entrance, shaft bottom is cleaned.
In addition, the entrance being also provided with the 3rd one way valve the 18, three one way valve between negative pressure pump entrance of the present utility model and pipe outlet is connected with the port of export of pipeline, and the outlet of the 3rd one way valve is connected with the entrance of negative pressure pump.The coal bed gas port of export and coal bed gas carry the entrance being also provided with the 4th one way valve the 19, four one way valve between main line entrance to be connected with the coal bed gas port of export, and outlet and the coal bed gas of the 4th one way valve carry main line entrance to be connected.When the unexpected power-off in well site and chance failure, the 3rd one way valve can avoid the gas-liquid backflow because negative pressure causes; When well site pipeline occurs damaged, the 4th one way valve ensures that the coal bed gas of Trunk Line is not leaked, and plays safety protection function.
Negative pressure pump is vacuum pump, and pipeline is the oil pipe can used on oil field.
Claims (8)
1. the same device for picking of coal bed gas ground air water, comprise pit shaft, pipeline and negative pressure pump, one end of described pipeline is arrival end, the other end of described pipeline is the port of export, described arrival end extend into well until below coal seam from the entrance of pit shaft, the described port of export is positioned at ground and is connected with the arrival end of negative pressure pump, seal between described pipeline and the entrance of pit shaft, between described pipeline and shaft in wall, there is gap, described gap forms flushing fluid passage, the upper end sidepiece of described pit shaft has flushing fluid entrance
It is characterized in that: described coal bed gas ground air water also comprises gas-liquid separator, coal bed gas conveying main line and the first coal bed gas re-injection pipeline with device for picking,
Described gas-liquid separator comprises gas-liquid arrival end, the coal bed gas port of export and the formation water port of export, and described gas-liquid arrival end is connected with negative pressure delivery side of pump, and the described formation water port of export discharges formation water, and the described coal bed gas port of export and coal bed gas carry main line to be connected,
Described first coal bed gas re-injection pipeline comprises the first valve, compressor and the first one way valve, one end of described first valve is connected on coal bed gas conveying main line, the described other end of the first valve is connected with the arrival end of compressor, the port of export of described compressor is connected with the arrival end of the first one way valve, and the port of export of described first one way valve is connected to flushing fluid entrance by pipeline.
2. the same device for picking of coal bed gas ground air water according to claim 1, it is characterized in that: described coal bed gas ground air water also comprises with device for picking the second coal bed gas re-injection pipeline arranged that to walk abreast with the first coal bed gas re-injection pipeline, described second coal bed gas re-injection pipeline comprises the second valve and the second one way valve, one end of described second valve is connected on coal bed gas conveying main line, the other end of described second valve is connected with the entrance of the second one way valve, and the outlet of described second one way valve is connected with the outlet of the first one way valve.
3. the same device for picking of coal bed gas ground air water according to claim 1, it is characterized in that: described coal bed gas ground air water also comprises formation water recycle unit with device for picking, described formation water recycle unit comprises cooler and cyclic water tank, described cyclic water tank comprises the first entrance and the first outlet, the entrance of described cooler is connected with the formation water port of export of gas-liquid separator, the outlet of described cooling water is connected with the first entrance of cyclic water tank by the 3rd valve, and the first outlet of described cyclic water tank is connected with the cooling water pipeline of vacuum pump.
4. the same device for picking of coal bed gas ground air water according to claim 3, it is characterized in that: described coal bed gas ground air water also comprises coal dust cleaning equipment with device for picking, described coal dust cleaning equipment also comprises sewage reservoir and centrifuge, and described cyclic water tank also comprises the second entrance and the second outlet
The entrance of described sewage reservoir is connected with the formation water port of export of gas-liquid separator by the 5th valve, the outlet of described sewage reservoir is connected with the entrance of centrifuge, described centrifuge has the first outlet and the second outlet, described first outlet is connected to the export pipeline of cooler by the 6th valve, described second outlet is connected directly to the second entrance of cyclic water tank, and the second outlet of described cyclic water tank is connected with flushing fluid entrance by the 4th valve.
5. the same device for picking of coal bed gas ground air water according to claim 1 or 2 or 3 or 4, it is characterized in that: between described negative pressure pump entrance and pipe outlet, be also provided with the 3rd one way valve, the entrance of described 3rd one way valve is connected with the port of export of pipeline, and the outlet of described 3rd one way valve is connected with the entrance of negative pressure pump.
6. the same device for picking of coal bed gas ground air water according to claim 5, it is characterized in that: the described coal bed gas port of export and coal bed gas are carried between main line entrance and be also provided with the 4th one way valve, the entrance of described 4th one way valve is connected with the coal bed gas port of export, and the outlet of described 4th one way valve carries main line entrance to be connected with coal bed gas.
7. the same device for picking of coal bed gas ground air water according to claim 1, is characterized in that: described negative pressure pump is vacuum pump.
8. the same device for picking of coal bed gas ground air water according to claim 1, is characterized in that: described pipeline is oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449960.6U CN204984367U (en) | 2015-06-26 | 2015-06-26 | Coal bed gas ground air water is with adopting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449960.6U CN204984367U (en) | 2015-06-26 | 2015-06-26 | Coal bed gas ground air water is with adopting device |
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| Publication Number | Publication Date |
|---|---|
| CN204984367U true CN204984367U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520449960.6U Expired - Fee Related CN204984367U (en) | 2015-06-26 | 2015-06-26 | Coal bed gas ground air water is with adopting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476784A (en) * | 2017-07-21 | 2017-12-15 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of CBM Drainage mining method of oil pipe production aquatic products gas |
| CN108019190A (en) * | 2017-12-25 | 2018-05-11 | 中山乐满石油设备有限公司 | A kind of totally-enclosed mixes defeated decompression circulation gas lift system |
-
2015
- 2015-06-26 CN CN201520449960.6U patent/CN204984367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476784A (en) * | 2017-07-21 | 2017-12-15 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of CBM Drainage mining method of oil pipe production aquatic products gas |
| CN108019190A (en) * | 2017-12-25 | 2018-05-11 | 中山乐满石油设备有限公司 | A kind of totally-enclosed mixes defeated decompression circulation gas lift system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160626 |