CN201651386U - Underground gas extraction terminal pipe control valve for coal mines - Google Patents
Underground gas extraction terminal pipe control valve for coal mines Download PDFInfo
- Publication number
- CN201651386U CN201651386U CN2010201728776U CN201020172877U CN201651386U CN 201651386 U CN201651386 U CN 201651386U CN 2010201728776 U CN2010201728776 U CN 2010201728776U CN 201020172877 U CN201020172877 U CN 201020172877U CN 201651386 U CN201651386 U CN 201651386U
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- CN
- China
- Prior art keywords
- control valve
- gas extraction
- regulation
- extraction terminal
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an underground gas extraction terminal pipe control valve for coal mines, which solves the technical problems in the prior art, such as inconvenient installation and connection due to the mis-match between the control valve and pipes and the incapability of effectively controlling the gas extraction amount and extraction concentration. The underground gas extraction terminal pipe control valve comprises a control valve body (3), a valve core clamping end cover (1), a control valve core (4) and a gas extraction terminal pipe (9), wherein an O-shaped seal ring (2) is disposed between the control valve body (3) and the control valve core (4); the gas extraction terminal pipe (9) is in threaded connection with an inlet pipe of the control valve body (3) through a threaded fastening cap (8); and a second seal ring (5) and a conical sleeve (7) are arranged between the thread fastening cap (8) and the inlet pipe of the control valve body (3). The underground gas extraction terminal pipe control valve has the advantages of simple and reliable structure, long service life and high maintainability.
Description
Technical field
The utility model relates to the control valve of two anti-polyethylene pipes that mash gas extraction uses under a kind of coal mine, is used for controlling the gas pumping amount effectively, reliably in the gas pumping process, and extraction concentration.
Background technique
At present, coal mine gas extraction pipeline update all is two anti-polyvinyl piping materials, and is still using common cast iron globe valve and cast iron stop valve in the terminal branch pipe-line system of extraction system.The inconvenience that causes installation, is connected owing to control valve and pipeline do not match.In addition, because in the mash gas extraction process, can be attended by a large amount of cinders, water is drawn out of, and has so just caused cinder to be stuck between spheroid and the valve body, the situation that valve can't be operated occurs.And, making ball valve situations such as corrosion in very short time, occur because the reason of water is arranged, the situation that also causes valve to control so just can't effectively be controlled the extraction amount and the extraction concentration of gas.
Summary of the invention
Coal mine gas extraction terminal pipeline adjusting control valve that the utility model provides has solved control valve that prior art exists and has not matched with pipeline and cause installation, the inconvenience that is connected and can't effectively control the extraction amount of gas and the technical problem of extraction concentration.
The utility model is to solve above technical problem by the following technical programs:
Coal mine gas extraction terminal pipeline adjusting control valve, comprise that regulation and control valve body, spool compress end cap, regulation and control spool and gas pumping terminal conduit, between described regulation and control valve body and regulation and control spool, be provided with O-ring seals, described gas pumping terminal conduit is the inlet duct place that is screwed onto the regulation and control valve body by the screw-threaded coupling cap, is provided with second seal ring and conical cutting ferrule between the inlet duct of screw-threaded coupling cap and regulation and control valve body.
Between described second seal ring and conical cutting ferrule, be provided with the snap ring that compresses seal ring.
The utility model features simple structure, reliable, long service life, maintainable strong, at the variation of single hole gas density in the gas pumping process, can control gas pumping amount and extraction concentration timely and effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a stereogram of the present utility model
Embodiment
Embodiment of the present utility model is as follows:
Coal mine gas extraction terminal pipeline adjusting control valve, comprise that regulation and control valve body 3, spool compress end cap 1, regulation and control spool 4 and gas pumping terminal conduit 9, between described regulation and control valve body 3 and regulation and control spool 4, be provided with O-ring seals 2, described gas pumping terminal conduit 9 is the inlet duct places that are screwed onto regulation and control valve body 3 by screw-threaded coupling cap 8, is provided with second seal ring 5 and conical cutting ferrule 7 between the inlet duct of screw-threaded coupling cap 8 and regulation and control valve body 3.
Between described second seal ring 5 and conical cutting ferrule 7, be provided with the snap ring 6 that compresses seal ring.
The adjusting control valve assembling process is: earlier O-ring seals is contained in the manufactured spool groove; Again spool is packed in the valve body matching hole and adjust the position; At last spool is compressed end cap and be screwed on the valve body, and it is fastening reliable that it is connected.
Adjusting control valve with the process that the gas pumping terminal conduit is connected is: screw-threaded coupling cap 8, conical cutting ferrule 7, snap ring 6, second seal ring are enclosed within successively on the gas pumping terminal conduit of desire connection, aforementioned gas pumping terminal conduit is inserted into valve body holds in the hole, should note the position of second seal ring, snap ring, conical cutting ferrule, the screw-threaded coupling cap is connected with the regulation and control valve body, and it is fastening reliable that it is connected.
This product structure is easy, reliable, and long service life is maintainable strong, at the variation of single hole gas density in the gas pumping process, can in time, effectively control gas pumping amount and extraction concentration.
Claims (2)
1. coal mine gas extraction terminal pipeline adjusting control valve, comprise that regulation and control valve body (3), spool compress end cap (1), regulation and control spool (4) and gas pumping terminal conduit (9), it is characterized in that, between described regulation and control valve body (3) and regulation and control spools (4), be provided with O-ring seals (2), described gas pumping terminal conduit (9) is the inlet duct place that is screwed onto regulation and control valve bodies (3) by screw-threaded coupling cap (8), is provided with second seal ring (5) and conical cutting ferrule (7) between the inlet duct of screw-threaded coupling cap (8) and regulation and control valve bodies (3).
2. coal mine gas extraction terminal pipeline adjusting control valve according to claim 1 is characterized in that, is provided with the snap ring (6) that compresses seal ring between described second seal ring (5) and conical cutting ferrule (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201728776U CN201651386U (en) | 2010-04-28 | 2010-04-28 | Underground gas extraction terminal pipe control valve for coal mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201728776U CN201651386U (en) | 2010-04-28 | 2010-04-28 | Underground gas extraction terminal pipe control valve for coal mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651386U true CN201651386U (en) | 2010-11-24 |
Family
ID=43116623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201728776U Expired - Fee Related CN201651386U (en) | 2010-04-28 | 2010-04-28 | Underground gas extraction terminal pipe control valve for coal mines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455817A (en) * | 2014-09-28 | 2015-03-25 | 中国船舶工业***工程研究院 | Hydraulic guarantee connector with control function |
| CN106439087A (en) * | 2016-10-31 | 2017-02-22 | 张培 | Adaptive-angle dredging node valve used for coal mine gas drainage hole |
-
2010
- 2010-04-28 CN CN2010201728776U patent/CN201651386U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455817A (en) * | 2014-09-28 | 2015-03-25 | 中国船舶工业***工程研究院 | Hydraulic guarantee connector with control function |
| CN106439087A (en) * | 2016-10-31 | 2017-02-22 | 张培 | Adaptive-angle dredging node valve used for coal mine gas drainage hole |
| CN106439087B (en) * | 2016-10-31 | 2018-11-20 | 张培 | A kind of gas discharge in mine hole angle can adaptively dredge node valve |
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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: 20101124 Termination date: 20190428 |