CN102704985A - Automatic water draining device for coal mine gas extraction pipeline under negative pressure - Google Patents
Automatic water draining device for coal mine gas extraction pipeline under negative pressure Download PDFInfo
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- CN102704985A CN102704985A CN2012101556063A CN201210155606A CN102704985A CN 102704985 A CN102704985 A CN 102704985A CN 2012101556063 A CN2012101556063 A CN 2012101556063A CN 201210155606 A CN201210155606 A CN 201210155606A CN 102704985 A CN102704985 A CN 102704985A
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- gas extraction
- coal mine
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Abstract
The invention provides an automatic water draining device for a coal mine gas extraction pipeline. under negative pressure, The device comprises a gas extraction pipeline, wherein a plurality of water outlets are arranged on the bottom of the gas extraction pipeline, the water outlets are connected to a water storage tank through a water pipe; the water storage tank is connected with a water inlet end of a drainer; the inside of the water inlet end is provided with a floating ball; the side wall of the water inlet end is provided with air vents; and the drainer is further provided with a dewatering outlet. The automatic water draining work under high negative pressure can be satisfied; the water and dregs in the drill hole can be blocked at the drill port, so that the amount of water and dregs in the extraction pipeline can be reduced to the greatest extent; and the normal running of an extraction system can be ensured. The automatic water draining device is simple, feasible, and good for draining water and removing dregs.
Description
Technical field
The present invention relates to water discharge technology, relate in particular to the automatic jettison gear of a kind of coal mine gas extraction pipeline negative pressure.
Background technology
Coal mine gas is claimed coal bed gas again, is the hydrocarbon gas that is stored in the coal seam, and Main Ingredients and Appearance is a methane, is inflammable and explosive gas, and Safety of Coal Mine Production is had great threat.But gas is again the high-quality clean energy resource, can use as the energy.So carry out the extraction of gas before the existing coal mining earlier, but mine sets up in most of extraction borehole in after the gas pumping system because down-hole and the goaf water burst phenomenon arranged, cause holing or the goaf in water entering underground gas extraction pipeline in.Ponding flows or assembles at low-lying place in the pipeline, has increased pipeline extraction resistance, and the loss of pipeline extraction negative pressure is bigger; Extraction flowed fluctuation amplitude is big, and system's source of the gas is unstable.Both influence the extraction effect, influenced the stable of gas utilization system again.Prior art usually adopts manual tailrace, but need install the artificial tailrace of many groups in the ponding location, and arranges many people to carry out the scene to discharge water, and material has high input, and it is many to take personnel, and it is untimely to discharge water, and multi-point and wide-ranging management difficulty is big; Also have bibliographical information to adopt automatic tailrace, all influence normally carrying out in order of mine gas extraction engineering and gas utilization and cost and drop into highly but receive the extraction negative pressure to influence problem such as big, maintenance is complicated, application life weak point.
Summary of the inventionThe present invention is exactly in order to overcome the above problems, and provides a kind of coal mine gas extraction pipeline negative pressure automatic jettison gear, and purpose is that gas pumping pipeline ponding guarantees the extraction system stability to the influence of gas pumping engineering under the various condition of negative pressure in order effectively to solve.
In order to achieve the above object; The present invention provides a kind of coal mine gas extraction pipeline negative pressure automatic jettison gear, comprises the gas pumping pipeline, and said gas pumping BOP is provided with several delivery ports; Said delivery port is connected to a water storage tank by water pipe; Said water storage tank is connected with the water inlet end of water trap through tube connector, and a ball float is established in said water inlet end inside, and the water inlet end sidewall is provided with air vent; Said water trap also is provided with the dewatering outlet.
Said water trap is the U-shaped tubulose, and the two ends of water trap are located in the water inlet end of said water trap and dewatering outlet, and upper surface, said dewatering outlet is provided with removable cover.
Said water inlet end top is taper, and the upper end of said ball float and said water inlet end top coincide.
Said water trap bottom is provided with slag-drip opening.
Said air vent is provided with the actuating type switch.
Said removable cover is affixed through spring and water trap.
During use, a plurality of delivery ports and the water storage tank of gas pumping pipeline coupled together with vertical water pipe, utilize the gravity of water, the water in the gas pumping pipeline is got in the water storage tank.Water tank bottom and U type water trap are connected, under the extraction suction function, the ball float in the water trap rises along with the rising of water level again, and the cover plate of dewatering outlet is the state that closes, and the U-shaped water trap becomes airtight container.Under ball float shake-up effect, air vent is opened, and air gets into U type water trap; Make the water level reinstatement attitude at its two ends, ball float " unsettled ", the ponding when ball float top reach a certain height; Its internal water weight, ball float weight sum are during greater than suction that negative pressure produced, and this moment, ball float fell, and the removable cover of dewatering outlet is opened by hydraulic pressure; Water is just discharged from the dewatering outlet, has accomplished automatic drainage procedure.After ball float fell after rise, the air vent touch switch automatically reset, closes, and the dewatering outlet cover plate also resets and covers, and U type water trap recovers sealing state.So repeatedly, U type water trap has been realized automatic draining.Get in the water trap as impurity, the slag-drip opening of opening the water trap bottom carries out deslagging.
Beneficial effect of the present invention:
Automatic draining, deslagging work under the high negative pressure state have been satisfied; Water in the boring, slag etc. are directly tackled in hell; The water and the quantity of slag that get into extraction pipeline have been reduced to greatest extent; Solved that ponding guarantees its extraction system stability to the influence of gas pumping engineering in the gas pumping pipeline under the various condition of negative pressure.It is a kind of simple, device with good draining, deslagging effect.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed description.
Fig. 1 is a structural representation of the present invention;
Among the figure: 1-gas pumping pipeline, 2-water pipe, 3-water storage tank, 4-water inlet end, 5-ball float, 6-air vent, 7-dewatering outlet, 8-cover plate, 9-slag-drip opening, 10-U shape water trap.
The specific embodiment
The automatic jettison gear of coal mine gas extraction pipeline negative pressure as shown in Figure 1; Comprise gas pumping pipeline 1; Said gas pumping pipeline 1 bottom is provided with several delivery ports; Said delivery port is connected to a water storage tank 3 by water pipe 2, and water pipe 2 vertically connects the delivery port and the water storage tank 3 of said gas pumping pipeline 1.Said water storage tank 3 is connected with the water inlet end 4 of U-shaped water trap 10, and a ball float 5 is established in water inlet end 4 inside of said U-shaped water trap 10, and water inlet end 4 tops are taper, and the upper end of said ball float 5 and said water inlet end 4 tops coincide.Water inlet end 4 sidewalls are provided with air vent 6, and air vent 6 is provided with the actuating type switch; Said U-shaped water trap also is provided with dewatering outlet 7, and the two ends of water trap are located in said water inlet end 4 and dewatering outlet 7, and it is affixed through spring and U-shaped water trap 10 that 7 upper surfaces, said dewatering outlet are provided with removable cover 8.Said U-shaped water trap 10 bottoms are provided with slag-drip opening 9.
It is following that this installs automatic drainage procedure:
1, under atmospheric pressure state, the both sides water surface of U type water trap is equal, and ball float remains static.
2, behind the connection gas drainage under suction pipeline, under suction function, the water surface descends U type water trap in the dewatering outlet, and the water inlet end water surface rises, and ball float rises simultaneously.
3, when ball float near water inlet during port, ball float moment is picked up, and withstands into water port, the water inlet port is sealed by ball float; Ball float touches the air vent touch switch simultaneously, and outside air gets in the U type water trap, and U type water trap internal pressure restores balance, and its both sides water level recovers level, and ball float is in " unsettled " state.
4, the water surface rises to certain altitude in the tube connector of water storage tank and U-shaped water trap, and during to suction that ball float produced, ball float then falls greater than the extraction negative pressure for ball float weight and water weight sum.Water flows in the U type water trap in water storage tank automatically, backs down cover plate from the dewatering outlet of U type water trap and discharges the once automatic drainage procedure of completion.
5, in ball float falling process, the air vent touch switch automatically resets, closes, and the dewatering outlet cover plate also resets and covers, and U type water trap recovers sealing state.
6, after the water in the water storage tank has been arranged, under extraction system suction function, ball float rises, and so repeatedly, U type water trap has been realized automatic draining.
7, some impurity in the gas pumping pipeline go out because of the self gravitation effect gets in the water trap, and the slag-drip opening of opening the water trap bottom just can carry out deslagging.
The foregoing description is not limited only to protection scope of the present invention, and all are based on basic thought of the present invention and all belonging in protection scope of the present invention of making amendment or change.
Claims (6)
1. the automatic jettison gear of coal mine gas extraction pipeline negative pressure; Comprise the gas pumping pipeline; It is characterized in that: said gas pumping BOP is provided with several delivery ports, and said delivery port is connected to a water storage tank by water pipe, and said water storage tank is connected with the water inlet end of water trap through tube connector; A ball float is established in said water inlet end inside, and the water inlet end sidewall is provided with air vent; Said water trap also is provided with the dewatering outlet.
2. according to the automatic jettison gear of the said coal mine gas extraction of claim 1 pipeline negative pressure, it is characterized in that: said water trap is the U-shaped tubulose, and the two ends of water trap are located in the water inlet end of said water trap and dewatering outlet, and upper surface, said dewatering outlet is provided with removable cover.
3. according to the automatic jettison gear of the said coal mine gas extraction of claim 1 pipeline negative pressure, it is characterized in that: said water inlet end top is taper, and the upper end of said ball float and said water inlet end top coincide.
4. according to the automatic jettison gear of the said coal mine gas extraction of claim 1 pipeline negative pressure, it is characterized in that: said water trap bottom is provided with slag-drip opening.
5. according to the automatic jettison gear of the said coal mine gas extraction of claim 1 pipeline negative pressure, it is characterized in that: said air vent is provided with the actuating type switch.
6. according to the automatic jettison gear of the said coal mine gas extraction of claim 2 pipeline negative pressure, it is characterized in that: said removable cover is affixed through spring and water trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101556063A CN102704985A (en) | 2012-05-18 | 2012-05-18 | Automatic water draining device for coal mine gas extraction pipeline under negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101556063A CN102704985A (en) | 2012-05-18 | 2012-05-18 | Automatic water draining device for coal mine gas extraction pipeline under negative pressure |
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| CN102704985A true CN102704985A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101556063A Pending CN102704985A (en) | 2012-05-18 | 2012-05-18 | Automatic water draining device for coal mine gas extraction pipeline under negative pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234700A (en) * | 2014-08-22 | 2014-12-24 | 唐卫东 | Anti-water-interference gas pressure determining device |
| CN108316971A (en) * | 2018-04-10 | 2018-07-24 | 山西霍尔辛赫煤业有限责任公司 | A kind of mine gas extraction system suction side automatic draining structure and method |
| CN109441533A (en) * | 2018-10-25 | 2019-03-08 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of underground solves to adopt the stifled method of L-type well water |
| CN109459554A (en) * | 2018-12-27 | 2019-03-12 | 山西汾西矿业（集团）有限责任公司设备修造厂 | A kind of automatic water drainage device testing equipment based on gas drainage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1142646A2 (en) * | 1983-04-15 | 1985-02-28 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Apparatus for automatic withdrawal of water from degassing line |
| CN201318191Y (en) * | 2008-12-25 | 2009-09-30 | 山西焦煤集团有限责任公司 | Central dewatering device for pumping drilling hole |
| CN201372808Y (en) * | 2009-02-18 | 2009-12-30 | 华晋焦煤有限责任公司 | High negative pressure U-shaped automatic drainage device of gas drainage pipeline |
| CN201635762U (en) * | 2010-04-02 | 2010-11-17 | 刘广顺 | Automatic water drainage device for coal mine gas extraction pipe |
| CN201953399U (en) * | 2011-04-07 | 2011-08-31 | 郝志勇 | Automatic water drainer for mining gas drainage |
| CN202560301U (en) * | 2012-05-18 | 2012-11-28 | 解波 | Negative pressure automatic water-discharge device for coal-mine gas extraction pipeline |
-
2012
- 2012-05-18 CN CN2012101556063A patent/CN102704985A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1142646A2 (en) * | 1983-04-15 | 1985-02-28 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Apparatus for automatic withdrawal of water from degassing line |
| CN201318191Y (en) * | 2008-12-25 | 2009-09-30 | 山西焦煤集团有限责任公司 | Central dewatering device for pumping drilling hole |
| CN201372808Y (en) * | 2009-02-18 | 2009-12-30 | 华晋焦煤有限责任公司 | High negative pressure U-shaped automatic drainage device of gas drainage pipeline |
| CN201635762U (en) * | 2010-04-02 | 2010-11-17 | 刘广顺 | Automatic water drainage device for coal mine gas extraction pipe |
| CN201953399U (en) * | 2011-04-07 | 2011-08-31 | 郝志勇 | Automatic water drainer for mining gas drainage |
| CN202560301U (en) * | 2012-05-18 | 2012-11-28 | 解波 | Negative pressure automatic water-discharge device for coal-mine gas extraction pipeline |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234700A (en) * | 2014-08-22 | 2014-12-24 | 唐卫东 | Anti-water-interference gas pressure determining device |
| CN108316971A (en) * | 2018-04-10 | 2018-07-24 | 山西霍尔辛赫煤业有限责任公司 | A kind of mine gas extraction system suction side automatic draining structure and method |
| CN109441533A (en) * | 2018-10-25 | 2019-03-08 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of underground solves to adopt the stifled method of L-type well water |
| CN109459554A (en) * | 2018-12-27 | 2019-03-12 | 山西汾西矿业（集团）有限责任公司设备修造厂 | A kind of automatic water drainage device testing equipment based on gas drainage |
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Application publication date: 20121003 |