CN202674831U - Wellhead supercharger special for exploitation of coal bed gas - Google Patents
Wellhead supercharger special for exploitation of coal bed gas Download PDFInfo
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- CN202674831U CN202674831U CN 201220311329 CN201220311329U CN202674831U CN 202674831 U CN202674831 U CN 202674831U CN 201220311329 CN201220311329 CN 201220311329 CN 201220311329 U CN201220311329 U CN 201220311329U CN 202674831 U CN202674831 U CN 202674831U
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Abstract
The utility model relates to a wellhead supercharger special for the exploitation of coal bed gas. The wellhead supercharger comprises a machine frame, a motor and a compressor which are fixed on the machine frame, and a gas transportation pipeline, wherein a primary cylinder and a secondary cylinder which work alternately are respectively arranged on two sides of the compressor; a cooler comprises a primary cooler and a secondary cooler; and when transported from a header gas inlet pipe to a header gas outlet pipe, the natural gas flows through the following components in sequence: a gas inlet filter, a primary gas inlet separator, the primary cylinder, the primary cooler, a secondary gas inlet separator, the secondary cylinder, the second cooler and a check valve. The wellhead supercharger requires a low investment and is low in operating and maintenance cost; and by the adoption of the wellhead supercharger, the problem that the natural gas of low-pressure gas wells is difficultly and inefficiently transported to a primary gas filling station due to variable pressure levels of wellheads is solved, so that the transportation efficiency of the compressed natural gas (CNG) which is exploited out of the gas wells is improved, and reserves of the CNG of the primary gas filling station can be increased to the utmost extent.
Description
Technical field
The utility model relates to a kind of natural gas transport and application technology, is specifically related to a kind of coal-bed gas exploitation Special wellhead pressure-increasing machine.
Background technique
China is the country of a petroleum resources shortage, has become at present oil " net importer ", and automobile is again with surprising rapidity in development, so Looking For Substitutions Of Oil is imperative simultaneously; Along with the rapid growth of automobile, automobile exhaust pollution has become the primary pollution source of urban atmospheric pollution, and uses rock gas can make the CO in the motor vehicle emission reduce by 97%, hydro carbons reduces by 72%, CO2 and reduces by 24%, SO2 reduction by 90%, the carcinogens such as not leaded, benzene are desirable clean energy resourcies; And the price of compressed natural gas used as vehicle fuel (CNG) only has about 1/3 of gasoline.Compressed natural gas used as vehicle fuel (CNG) is high with its economic benefit, applies project thereby social benefit significantly becomes the emphasis in most provinces, city and area.So more reasonable to have developed more efficiently natural gas resource extremely important.
But because the CNG of traditional mode exploitation carries investment large, operation, maintenance cost is high, and owing to each gas well pressure height does not wait, the rock gas of low-pressure gas well is difficult to effectively be transported to refueling mother station, so, develop and a kind ofly can improve low-pressure gas well pressure, the equipment that improves natural gas transport efficient is imperative.
Summary of the invention
The problem and shortage that the utility model exists in using for present coal-bed gas exploitation provides a kind of coal-bed gas exploitation Special wellhead pressure-increasing machine.
Technological scheme: a kind of coal-bed gas exploitation Special wellhead pressure-increasing machine, comprise frame, be fixed on motor and compressor on the frame, and air delivering pipeline, the both sides of compressor arrange respectively one-level cylinder and secondary cylinder, this two-stage cylinder alternation, described cooler is divided into one-level cooler and secondary coolers; Rock gas passes through following part from total inlet pipe successively to total steam outlet pipe: air intake filter → one-level air inlet separator → one-level cylinder → one-level cooler → secondary air inlet separator → secondary cylinder → secondary coolers → one-way valve.
Pipeline between one-level air inlet separator and one-level cylinder is provided with flowmeter.
Also be provided with the controller dial plate on the frame.
Side in one-level cooler and secondary coolers also is provided with fan.
Beneficial effect: the utility model investment is little, operation, maintenance cost is low, and can solve because each gas well pressure height does not wait, the rock gas of low-pressure gas well is difficult to effectively be transported to the difficult problem of refueling mother station, so, improve CNG rock gas transfer efficiency after the exploitation out in the gas well, can improve to greatest extent the reserves of refueling mother station CNG rock gas.
Description of drawings
Figure l is coal-bed gas exploitation Special wellhead pressure-increasing machine structural representation of the present utility model.
Embodiment
Embodiment one: coal-bed gas exploitation Special wellhead pressure-increasing machine is referring to Fig. 1, and number in the figure 1 is air intake filter, and 2 is one-level air inlet separator, 3 is flowmeter, and 4 is compressor host, and 5 is fan, 6 is secondary air inlet separator, and 7 is the controller dial plate, and 8 is motor, 9 is one-way valve, and 10 is the one-level cylinder, and 11 is secondary cylinder, 12 is the one-level cooler, 13 is secondary coolers, and 14 is total inlet pipe, and 15 is total steam outlet pipe.
Coal-bed gas exploitation Special wellhead pressure-increasing machine of the present utility model is to guide the CNG rock gas gas in the low-pressure gas well into this equipment, after the compressions at different levels of this device compressor, is transported to pipe network again.Specific as follows:
The CNG rock gas after the exploitation out, at first enters air intake filter 1 by total inlet pipe 14 in the low-pressure gas well; After filter 1 filtration, if its pressure reaches setting pressure, then the natural gas via bypass directly is delivered to the CNG gas distributing system.Because the CNG rock gas is in the gas well after the exploitation out, its pressure does not nearly all reach setting value, so the CNG rock gas is exploited out afterwards by air intake filter 1 filtration in gas well, then mainly be that aqueous vapor is separated through one-level air inlet separator 2(), the one-level cylinder 10 that enters compressor host 4 compresses supercharging, then mainly be that cooled aqueous vapor is separated through entering into secondary air inlet separator 6(behind the one-level cooler 12), then compress supercharging, secondary coolers 13 coolings by secondary cylinder 11; The CNG rock gas of this moment passes through the processing of links in the gas well successively after the exploitation out, its pressure has reached setting pressure, successively compressed natural gas is transported to pipe network through total steam outlet pipe 15 by safety check, pneumatic ball valve at last.
In the present embodiment, CNG is natural in the low-pressure gas well after the exploitation out, enter successively air inlet separator, one-level cylinder, one-level cooler, primary separator, secondary cylinder, secondary coolers, second-stage separator, oil removal filter, safety check, successively compressed natural gas is transported at last the pipeline that the parts such as pipe network connect, the gas main line that equipment forms compressor by pneumatic ball valve.Be to guarantee safety, prevent pipeline that the accidental safety valve that overpressure occurs and arrange connects, and the pipeline of getting rid of the compositions such as pipeline of oil, blowoff line that water is used and Bonding pressure table be auxiliary piping.
Claims (4)
1. coal-bed gas exploitation Special wellhead pressure-increasing machine, comprise frame, be fixed on motor and compressor on the frame, and air delivering pipeline, it is characterized in that: the both sides of compressor arrange respectively one-level cylinder and secondary cylinder, this two-stage cylinder alternation, described cooler is divided into one-level cooler and secondary coolers; Rock gas passes through following part from total inlet pipe successively to total steam outlet pipe: air intake filter → one-level air inlet separator → one-level cylinder → one-level cooler → secondary air inlet separator → secondary cylinder → secondary coolers → one-way valve.
2. coal-bed gas exploitation Special wellhead pressure-increasing machine according to claim 1, it is characterized in that: the pipeline between one-level air inlet separator and one-level cylinder is provided with flowmeter.
3. coal-bed gas exploitation Special wellhead pressure-increasing machine according to claim 1 is characterized in that: also be provided with the controller dial plate on the frame.
4. coal-bed gas exploitation Special wellhead pressure-increasing machine according to claim 1, it is characterized in that: the side in one-level cooler and secondary coolers also is provided with fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311329 CN202674831U (en) | 2012-06-29 | 2012-06-29 | Wellhead supercharger special for exploitation of coal bed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311329 CN202674831U (en) | 2012-06-29 | 2012-06-29 | Wellhead supercharger special for exploitation of coal bed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674831U true CN202674831U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311329 Expired - Fee Related CN202674831U (en) | 2012-06-29 | 2012-06-29 | Wellhead supercharger special for exploitation of coal bed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256478A (en) * | 2013-05-13 | 2013-08-21 | 太原理工大学 | Multi-stage inflation device used in coal mine |
| CN106545318A (en) * | 2017-01-25 | 2017-03-29 | 山东华泽工贸有限公司 | Sheath gas retracting device and oil recovery gas producing device |
| CN109185703A (en) * | 2018-08-16 | 2019-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of coal mine ground adopts well coal bed gas gathering and transporting device |
-
2012
- 2012-06-29 CN CN 201220311329 patent/CN202674831U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256478A (en) * | 2013-05-13 | 2013-08-21 | 太原理工大学 | Multi-stage inflation device used in coal mine |
| CN103256478B (en) * | 2013-05-13 | 2015-10-28 | 太原理工大学 | A kind of multi-stage inflatable device for underground coal mine |
| CN106545318A (en) * | 2017-01-25 | 2017-03-29 | 山东华泽工贸有限公司 | Sheath gas retracting device and oil recovery gas producing device |
| CN109185703A (en) * | 2018-08-16 | 2019-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of coal mine ground adopts well coal bed gas gathering and transporting device |
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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: 20130116 Termination date: 20180629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |