CN102877833A - Compensated pressure measurement drilling gas-water separation drainage device - Google Patents
Compensated pressure measurement drilling gas-water separation drainage device Download PDFInfo
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- CN102877833A CN102877833A CN201210203782XA CN201210203782A CN102877833A CN 102877833 A CN102877833 A CN 102877833A CN 201210203782X A CN201210203782X A CN 201210203782XA CN 201210203782 A CN201210203782 A CN 201210203782A CN 102877833 A CN102877833 A CN 102877833A
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Abstract
The invention provides a compensated pressure measurement drilling gas-water separation drainage device, which comprises a tank body, wherein the upper part of the tank body is provided with a fluid inlet and a pressure gauge, and the lower part of the tank body is provided with a drainage port and a pressure compensation port; and the pressure compensation port is higher than the drainage port. When the compensated pressure measurement drilling gas-water separation drainage device is used, water and gas in a pressure test pipe enter the tank body through the fluid inlet and are separated, the separated water is accumulated on the lower part, and the separated gas is accumulated on the upper part, so that the water is separated from the gas; the pressure in the tank body, which is measured through the pressure gauge, is the pressure of gas in a coal seam; and the measurement eliminates adverse influence of the water on gas pressure measurement, and ensures the accuracy of the gas pressure measurement. When a certain quantity of water is accumulated, the water is drained through the drainage port, and the tank body is inflated through the pressure compensation port in the drainage process to compensate pressure drop in the tank body due to drainage, so that the pressure measurement accuracy of the pressure gauge is ensured.
Description
Technical field
The present invention relates to prevent and treat the technology of coal and Gas Outburst, relate in particular to a kind of compensation pressure measuring drill hole gas-water separation jettison gear.
Background technology
At present, in field, colliery control mine, in the work of coal and Gas Outburst, need to before seam mining, carry out coal and gas outburst risk evaluation to the coal seam, need in the qualification process gas pressure in coal seam is measured.Gas pressure is measured main mode by the boring pressure measurement to be realized.Have water because the roof and floor in coal seam is composed sometimes, composing the water that is stored in the roof and floor can enter in the piezometer tube by boring, and the accuracy of pressure measurement is caused adverse effect.This shows, in order to improve the accuracy of pressure measurement, need in the pressure measurement process, realize gas-water separation, existing way is to adopt manually-operated mode that the ball valve of the ponding in the piezometer tube by the mouth of pipe discharged, adopt this kind mode both to cause easily the frequent pressure release of drilling gas pressure, can not realize again continuing to discharge water, thereby affect the accuracy of determination of coal seam gas pressure.
Summary of the invention
The invention provides a kind of compensation pressure measuring drill hole gas-water separation jettison gear, in order to guarantee the accuracy of determination of coal seam gas pressure.
The invention provides a kind of compensation pressure measuring drill hole gas-water separation jettison gear, comprise tank body, the top of described tank body is provided with fluid intake and pressure meter, bottom are provided with outfall and pressure compensation mouth, and described pressure compensation mouth is higher than described outfall.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear wherein, also is fixedly connected with content gauge on the described tank body, the vertical height of the liquid inlet of described content gauge is between described outfall and described pressure compensation mouth.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described liquid level is counted the magnetic flap level gauge.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, the bottom of described tank body is provided with supporting leg.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described outfall is provided with the first valve.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described the first valve is Automatic steam trap Trap.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described pressure meter is arranged at the top of described tank body.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described fluid intake is arranged at the top of described tank body.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described fluid intake is provided with the second valve.
Aforesaid compensation pressure measuring drill hole gas-water separation jettison gear, wherein, described pressure compensation mouth is provided with the 3rd valve.
Compensation pressure measuring drill hole gas-water separation jettison gear provided by the invention, in use, fluid intake is connected with piezometer tube, and the pressure compensation mouth is connected with the colliery compressed-air system, then water and the gas in the piezometer tube enters in the tank body by fluid intake, under action of gravitation, water is realized separating with gas, the water of separating accumulates in the bottom of tank body, the methane accumulation of separating is in the top of tank body, realized separating of water and gas, and the pressure in the tank body that obtains by gauge measurement is the pressure of the gas in the coal seam, the water adverse effect that measurement brings to gas pressure has been eliminated in this measurement, has guaranteed the accuracy that gas pressure is measured.Accumulate to when a certain amount of at water, carry out draining by outfall, by the pressure compensation mouth that is connected with the colliery compressed-air system inflation in the tank body is caused pressure drop in the tank body with compensation because of draining in the process of draining, and then guarantee the accuracy of pressure meter pressure measurement.
Description of drawings
Fig. 1 is the structural representation of the compensation pressure measuring drill hole gas-water separation of the present invention jettison gear embodiment.
The specific embodiment
Fig. 1 is the structural representation of the compensation pressure measuring drill hole gas-water separation of the present invention jettison gear embodiment; As shown in Figure 1, the embodiment of the compensation pressure measuring drill hole gas-water separation of the present invention jettison gear, this compensation pressure measuring drill hole gas-water separation jettison gear comprises tank body 1, the top of tank body 1 is provided with fluid intake 5 and pressure meter 3, bottom are provided with outfall 9 and pressure compensation mouth 11, and pressure compensation mouth 11 is higher than outfall 9.
The compensation pressure measuring drill hole gas-water separation jettison gear of such scheme, in use, fluid intake 5 is connected with piezometer tube, and pressure compensation mouth 11 is connected with the colliery compressed-air system, then water and the gas in the piezometer tube enters in the tank body 1 by fluid intake 5, under action of gravitation, water is realized separating with gas, the water of separating accumulates in the bottom of tank body 1, the methane accumulation of separating is in the top of tank body 1, realized separating of water and gas, measures the pressure that pressure in the tank body that obtains is the gas in the coal seam by pressure meter 3, the water adverse effect that measurement brings to gas pressure has been eliminated in this measurement, has guaranteed the accuracy that gas pressure is measured.Accumulate to when a certain amount of at water, carry out draining by outfall 9, cause pressure drop (aeration quantity and inflation flow velocity according to the operating mode of reality at the scene by operating personnel determined) tank body in compensation because of draining by 11 pairs of tank bodies of pressure compensation mouth, the 1 interior inflation that is connected with the colliery compressed-air system in the process of draining, and then guarantee the accuracy of pressure meter 3 pressure measurement.
In actual applications, tank body 1 can be welded by seamless steel pipe, during welding, can at first intercept one section seamless steel pipe, then respectively at the two ends of seamless steel pipe welding steel, shutoff is carried out at two ends to steel pipe, makes the steel plate at seamless steel pipe and two ends surround the cavity of a sealing, and the pressure that the tank body 1 that this welding consists of can bear is more than 1.6MPa.
Offer two holes on the top of tank body 1, mixture that forms as water and methane gas enters the fluid intake 5 in the tank body 1, and another is used for installing a pressure meter 3 as pressure meter installing hole 2.Pressure meter 3 can adopt anti-shock pressure meter 3.Offer two holes in the bottom of tank body 1, and two holes arrange one on the other, superposed hole is positioned at the hole of bottom as outfall 9 as pressure compensation mouth 11.
As an optimal way, fluid intake 5 and pressure meter installing hole 2 all can be arranged on the top of tank body 1, also namely are opened on the steel plate of seamless steel pipe top welding.Fluid intake 5 and pressure meter installing hole 2 are arranged on the top of tank body 1, are conducive to the mixture that water and methane gas form and enter in the tank body 1, and realize separating, and be convenient to 3 pairs of gas pressures of pressure meter and measure.
Observe for the ease of the height to the water accumulation of tank body 1, be fixedly connected with content gauge 6 at tank body 1, and the liquid inlet 7 of content gauge 6 on vertical height between outfall 9 and pressure compensation mouth 11.Wherein, content gauge 6 can adopt the magnetic flap level gauge.
For ease of placing this compensation pressure measuring drill hole gas-water separation jettison gear, tank body 1 the bottom be provided with supporting leg 8.Supporting leg 8 can be fixed on by the mode of welding the bottom of tank body 1.
Break-make for the ease of the control water accumulation is drained is equipped with the first valve 10 in outfall 9.Wherein, the first valve 10 is Automatic steam trap Trap, can certainly adopt ball valve.If the employing Automatic steam trap Trap then when the pressure in the tank body 1 reaches setting value, just Automatic steam trap Trap can be opened automatically, is realized automatic draining.
To tank body 1 interior mobile break-make, at fluid intake 5 the second valve 4 is installed for the ease of the mixture of control water and gas composition.
To carry out pressure compensated break-make in order controlling in tank body 1, at pressure compensation mouth 11 the 3rd valve 12 to be installed.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a compensation pressure measuring drill hole gas-water separation jettison gear is characterized in that, comprises tank body, and the top of described tank body is provided with fluid intake and pressure meter, bottom are provided with outfall and pressure compensation mouth, and described pressure compensation mouth is higher than described outfall.
2. compensation pressure measuring drill hole gas-water separation jettison gear according to claim 1 is characterized in that, also is fixedly connected with content gauge on the described tank body, and the vertical height of the liquid inlet of described content gauge is between described outfall and described pressure compensation mouth.
3. compensation pressure measuring drill hole gas-water separation jettison gear according to claim 2 is characterized in that described liquid level is counted the magnetic flap level gauge.
4. according to claim 1 and 2 or 3 described compensation pressure measuring drill hole gas-water separation jettison gears, it is characterized in that the bottom of described tank body is provided with supporting leg.
5. according to claim 1 and 2 or 3 described compensation pressure measuring drill hole gas-water separation jettison gears, it is characterized in that described outfall is provided with the first valve.
6. compensation pressure measuring drill hole gas-water separation jettison gear according to claim 5 is characterized in that described the first valve is Automatic steam trap Trap.
7. according to claim 1 and 2 or 3 described compensation pressure measuring drill hole gas-water separation jettison gears, it is characterized in that described pressure meter is arranged at the top of described tank body.
8. according to claim 1 and 2 or 3 described compensation pressure measuring drill hole gas-water separation jettison gears, it is characterized in that described fluid intake is arranged at the top of described tank body.
9. according to claim 1 and 2 or 3 described compensation pressure measuring drill hole gas-water separation jettison gears, it is characterized in that described fluid intake is provided with the second valve.
10. according to claim 1 and 2 or 3 described compensation pressure measuring drill hole gas-water separation jettison gears, it is characterized in that described pressure compensation mouth is provided with the 3rd valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203782XA CN102877833A (en) | 2012-06-19 | 2012-06-19 | Compensated pressure measurement drilling gas-water separation drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203782XA CN102877833A (en) | 2012-06-19 | 2012-06-19 | Compensated pressure measurement drilling gas-water separation drainage device |
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| Publication Number | Publication Date |
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| CN102877833A true CN102877833A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210203782XA Pending CN102877833A (en) | 2012-06-19 | 2012-06-19 | Compensated pressure measurement drilling gas-water separation drainage device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206243A (en) * | 2013-04-17 | 2013-07-17 | 淮南矿业(集团)有限责任公司 | Pressure hole drain |
| CN103993873A (en) * | 2014-05-29 | 2014-08-20 | 淮南矿业(集团)有限责任公司 | Pressure measuring device |
| CN104963717A (en) * | 2015-07-01 | 2015-10-07 | 淮南矿业(集团)有限责任公司 | Positive pressure automatic water discharging device and gas pressure detection device |
| CN112253247A (en) * | 2020-08-26 | 2021-01-22 | 煤科集团沈阳研究院有限公司 | Gas pressure rapid measuring device and measuring method |
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2012
- 2012-06-19 CN CN201210203782XA patent/CN102877833A/en active Pending
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| WO2010019052A1 (en) * | 2008-08-15 | 2010-02-18 | Aker Subsea As | Device for separating and collecting fluid in gas from a reservoir |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206243A (en) * | 2013-04-17 | 2013-07-17 | 淮南矿业(集团)有限责任公司 | Pressure hole drain |
| CN103993873A (en) * | 2014-05-29 | 2014-08-20 | 淮南矿业(集团)有限责任公司 | Pressure measuring device |
| CN103993873B (en) * | 2014-05-29 | 2017-02-01 | 淮南矿业(集团)有限责任公司 | Pressure measuring device |
| CN104963717A (en) * | 2015-07-01 | 2015-10-07 | 淮南矿业(集团)有限责任公司 | Positive pressure automatic water discharging device and gas pressure detection device |
| CN104963717B (en) * | 2015-07-01 | 2017-07-25 | 淮南矿业(集团)有限责任公司 | Malleation automatic water drainage device and gas pressure detection means |
| CN112253247A (en) * | 2020-08-26 | 2021-01-22 | 煤科集团沈阳研究院有限公司 | Gas pressure rapid measuring device and measuring method |
| CN112253247B (en) * | 2020-08-26 | 2021-10-22 | 中煤科工集团沈阳研究院有限公司 | Gas pressure rapid measuring device and measuring method |
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Application publication date: 20130116 |