CN103016055A - Coal stratum high positive pressure gas-water separation automatic drainage pressure measuring device - Google Patents
Coal stratum high positive pressure gas-water separation automatic drainage pressure measuring device Download PDFInfo
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- CN103016055A CN103016055A CN2012105705423A CN201210570542A CN103016055A CN 103016055 A CN103016055 A CN 103016055A CN 2012105705423 A CN2012105705423 A CN 2012105705423A CN 201210570542 A CN201210570542 A CN 201210570542A CN 103016055 A CN103016055 A CN 103016055A
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Abstract
The invention provides a coal stratum high positive pressure gas-water separation automatic drainage pressure measuring device which comprises a gas-water separation bucket, a pressure measuring device and an inner floating bucket. The inner floating bucket is arranged inside the gas-water separation bucket, when the buoyancy of water in the gas-water separation bucket is less than or equal to the sum of the gravity of the inner floating bucket and the pressure of gas in the gas-water separation bucket, the inner floating bucket closes a drain hole in the bottom of the gas-water separation bucket; and when the buoyancy of water in the gas-water separation bucket is more than the sum of the gravity of the inner floating bucket and the pressure of gas in the gas-water separation bucket, the drain hole is opened, the water in the gas-water separation bucket is drained, and the pressure of the gas in a high-positive pressure state is measured by using the pressure measuring device on the upper end face of the gas-water separation bucket. According to the coal stratum high positive pressure gas-water separation automatic drainage pressure measuring device, the gas and the water can be separated, the gas pressure can be rapidly and accurately measured, and the automatic drainage function can also be realized.
Description
Technical field
The present invention relates to the coal rock layer manometric technique, relate in particular to a kind of coal petrography floor height positive pressure gas moisture from the Auto-drainage pressure tester.
Background technology
Coal mine gas is one of key factor that threatens Safety of Coal Mine Production, in order to guarantee the safety in production in colliery, need to measure in advance the gas pressure in the coal rock layer.In the prior art, can by in coal rock layer, drill, sealing of hole, the setting pressure table is measured under the coal mine gas pressure in the coal rock layer, owing to not only contain the gas with certain pressure in coal rock layer and the rock stratum, also contain press water, press water can affect the gas pressure value of surveying, and makes the gas pressure that records can not reflect real coal rock layer gas pressure, brings very large hidden danger to safety in production.
In the prior art, gas-water separation can be opened by gas and water separator is installed, but existing gas and water separator all needs manual emission water, if can not timely water be emitted, also can affect the measurement of gas pressure, detect to gas pressure and bring very large inconvenience.
Summary of the invention
The invention provides a kind of coal petrography floor height positive pressure gas moisture from self-draining arrangement, be used for overcoming the deficiencies in the prior art, can realize automatic-discharging water and Quick Measuring compression functions.
Coal petrography floor height positive pressure gas moisture provided by the invention is from the Auto-drainage pressure tester, mainly comprise: gas-water separation bucket, pressure tester and interior keg float, the lower surface of described gas-water separation bucket is provided with outfall, described pressure tester is arranged on the upper surface of described gas-water separation bucket, and described interior keg float is arranged on the inside of described gas-water separation bucket;
Described pressure tester is used for sending into air-water mixture and gaging pressure in described gas-water separation bucket;
Described gas-water separation bucket is used for holding described air-water mixture;
Described interior keg float, be used at described gas-water separation bucket buoyancy of water during less than or equal to the gravity of described interior keg float and the gas pressure sum in the described gas-water separation bucket, seal described outfall, when buoyancy of water is greater than the gravity of described interior keg float and the gas pressure sum in the described gas-water separation bucket in described gas-water separation bucket, open described outfall.
Preferably, described gas-water separation bucket is round tank or rectangular-shape barrel, and the shape of described interior keg float is identical with the shape of described gas-water separation bucket.
Particularly, described pressure tester comprises pressure measurement four-way, pressure measurement pressure meter, pressure measurement gate valve, atmospheric pressure compensated equipment and Compensating sluice gate valve, the first end of described pressure measurement four-way is connected with hole sealing tube in the pressure measuring drill hole by pipeline, described pressure measurement gate valve is arranged on the pipeline of this end, the second end of described pressure measurement four-way is connected by the pressure tap of offering on pipeline and the gas-water separation bucket, the 3rd end of described pressure measurement four-way connects the pressure measurement pressure meter, the 4th end of described pressure measurement four-way is connected with described atmospheric pressure compensated equipment by pipeline, and described Compensating sluice gate valve is arranged on the pipeline of this end.
Preferably, described pressure measurement pressure meter is positioned at the extreme higher position of described pressure tester.
Further, coal petrography floor height positive pressure gas moisture provided by the invention also comprises for the water level metering device of measuring gas-water separation bucket aqueous water height from the Auto-drainage pressure tester.
Particularly, the water-level gauge of described water level metering device for being connected by the water level hole of offering on pipeline and the gas-water separation bucket sidewall.
Coal petrography floor height positive pressure gas moisture provided by the invention is from the Auto-drainage pressure tester, by in gas-water separation bucket inside interior keg float being set, when buoyancy of water in the gas-water separation bucket during less than or equal to the gravity of interior keg float and the gas pressure sum in the gas-water separation bucket, the outfall of interior keg float sealing gas-water separation bottom of the barrel, when buoyancy of water in the gas-water separation bucket during greater than the gravity of interior keg float and the gas pressure sum in the gas-water separation bucket, open outfall, water in the gas-water separation bucket is discharged, utilize the pressure tester that is arranged on gas-water separation bucket upper surface to measure the gas pressure of high barotropic state.Therefore, coal petrography floor height positive pressure gas moisture provided by the invention not only can be opened gas-water separation from the Auto-drainage pressure tester, measures fast and accurately gas pressure, can also realize automatic drainage function.
Description of drawings
Fig. 1 is that coal petrography floor height positive pressure gas moisture of the present invention is from the structural representation of Auto-drainage pressure tester;
Fig. 2 is the structural representation of pressure tester among Fig. 1;
Fig. 3 is that coal petrography floor height positive pressure gas moisture of the present invention is from the overall structure schematic diagram of Auto-drainage pressure tester.
Description of reference numerals:
1: the gas-water separation bucket; 2: pressure tester; 3: interior keg float;
11: outfall; 12: water-level gauge; 21: the pressure measurement pressure meter;
22: the pressure measurement four-way; 23: compensation arrangement; 24: Compensating sluice gate valve;
25: the pressure measurement gate valve; 5: hole sealing tube.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
Fig. 1 be coal petrography floor height positive pressure gas moisture of the present invention from the structural representation of Auto-drainage pressure tester, Fig. 2 is the structural representation of pressure tester among Fig. 1, Fig. 3 is that coal petrography floor height positive pressure gas moisture of the present invention is from the overall structure schematic diagram of Auto-drainage pressure tester.As shown in Figure 1 to Figure 3, coal petrography floor height positive pressure gas moisture provided by the invention comprises from the agent structure of Auto-drainage pressure tester: gas-water separation bucket 1, pressure tester 2 and interior keg float 3.The lower surface of gas-water separation bucket 1 is provided with outfall 11, and pressure tester 2 is arranged on the upper surface of gas-water separation bucket 1, and interior keg float 3 is arranged on the inside of gas-water separation bucket 1.Particularly, pressure tester 2 is arranged on the upper surface of gas-water separation bucket 1, is used for sending into air-water mixture and gaging pressure in gas-water separation bucket 1; Gas-water separation bucket 1 is used for holding air-water mixture; Interior keg float 3 is used at gas-water separation bucket 1 buoyancy of water during less than or equal to the gravity of interior keg float 3 and the gas pressure sum in the gas-water separation bucket 1, sealing outfall 11, when buoyancy of water is greater than the gravity of interior keg float 3 and the gas pressure sum in the gas-water separation bucket 1 in gas-water separation bucket 1, open outfall 11, by outfall 11 water in the gas-water separation bucket 1 is discharged.
Preferably, gas-water separation bucket 1 is round tank or rectangular-shape barrel, and the shape of interior keg float 3 is identical with the shape of gas-water separation bucket 1.The height of gas-water separation bucket 1 and interior keg float 3 can be determined according to in-borehole gas predictable pressure value.
In the present embodiment, pressure tester 2 specifically comprises pressure measurement four-way 22, pressure measurement pressure meter 21, pressure measurement gate valve 25, atmospheric pressure compensated equipment 23 and Compensating sluice gate valve 24.The first end of pressure measurement four-way 22 is connected with hole sealing tube 5 in the pressure measuring drill hole by pipeline, pressure measurement gate valve 25 is arranged on the pipeline of this end, the second end of pressure measurement four-way 22 is connected by the pressure tap of offering on pipeline and the gas-water separation bucket 1, the 3rd end of pressure measurement four-way 22 connects pressure measurement pressure meter 21, the 4th end of pressure measurement four-way 22 is connected with atmospheric pressure compensated equipment 23 by pipeline, and Compensating sluice gate valve 24 is arranged on the pipeline of this end.Can measure gas pressure in the coal rock layer by pressure tester 2.
Further, the pressure tester of present embodiment can also comprise the water level metering device, is arranged on the sidepiece of gas-water separation bucket 1, is used for measuring the height of gas-water separation bucket 1 aqueous water.Particularly, middle water level metering device of the present invention is high pressure resistant water-level gauge 12, and water-level gauge 12 is connected by the water level hole of offering on pipeline and gas-water separation bucket 1 sidewall, can understand easily the water level in the gas-water separation bucket 1.In the present embodiment, the water level hole is opened on the sidewall of gas-water separation bucket 1.
The course of work below by present embodiment further specifies present embodiment coal petrography floor height positive pressure gas moisture from the technical scheme of Auto-drainage pressure tester.
During the beginning pressure measurement, at first the pressure measurement gate valve 25 in the pressure tester 2 is opened, Compensating sluice gate valve 24 is closed, and the air-water mixture that has certain pressure in the pressure measuring drill hole enters in the gas-water separation bucket 1 via the pressure measurement four-way 22 in hole sealing tube 5 and the pressure tester 2.Because the physical characteristic of gas and water, the air-water mixture that enters in the gas-water separation bucket 1 will separate automatically, and aqueous water remains in bottom or the bottom of gas-water separation bucket 1, and air accumulation is positioned on the aqueous water on top or the top of gas-water separation bucket 1.At the pressure measurement initial stage, the water level in the gas-water separation bucket 1 is lower, because buoyancy of water is less than or equal to the gravity of interior keg float 3 and the gas pressure sum in the gas-water separation bucket 1 in the gas-water separation bucket 1, outfall 11 is in closed state.Along with the air-water mixture that enters in the gas-water separation bucket 1 constantly increases, the water level of gas-water separation bucket 1 interior aqueous water constantly raises, when water level rises to a certain position, when buoyancy of water is greater than the gravity of interior keg float 3 and the gas pressure sum in the gas-water separation bucket 1 in the gas-water separation bucket 1, outfall 11 will be opened, and the water in the gas-water separation bucket 1 will flow out from outfall 11.Outflow along with water, water level in the gas-water separation bucket 1 descends, the buoyancy that the internal keg float 3 of water produces also reduces, water level in gas-water separation bucket 1 drops to a certain height, and when making buoyancy of water less than or equal to the gravity of interior keg float 3 and the gas pressure sum in the gas-water separation bucket 1, outfall 11 will be closed again.Therefore, the coal petrography floor height positive pressure gas moisture that present embodiment provides can be realized automatic drainage function from the Auto-drainage pressure tester.
In the present embodiment, considering after gas-water separation bucket 1 is discharged aqueous water increases gas-water separation bucket 1 interior space, the indicated value of pressure measurement pressure meter 21 can descend, and low indicated value can affect the reading progress, so the present invention provides gas compensation by compensation arrangement 23 is set in gas-water separation bucket 1.During the gas compensation operation, close the pressure measurement gate valve 25 in the pressure tester 2, open Compensating sluice gate valve 24, the gases at high pressure of compensation enter in the gas-water separation bucket 1 by pressure measurement four-way 22.In actual the use, the amount of compensation arrangement 23 compensation gases at high pressure can be set as required.For example, during indicated value before the indicated value of compensatory pressure table 21 returns to draining, stop the tonifying Qi operation, at this moment, the indicated value of pressure measurement pressure meter 21 equates with compensation gas indicated value before in the pressure tester 2.Owing to be provided with the compensation arrangement 23 of make-up gas, present embodiment coal petrography floor height positive pressure gas moisture can also be realized initiatively fast pressure measurement from the Auto-drainage pressure tester.
In actual use, pressure tester 2 can be arranged on the extreme higher position of gas- water separation bucket 1,21 extreme higher positions that are installed in pressure tester 2 of pressure measurement pressure meter, because pressure measurement pressure meter 21 positions are higher, air-water mixture can not enter pressure measurement pressure meter 21, thereby can prevent effectively that liquid or impurity in the air-water mixture from entering pressure measurement pressure meter 21, not only effectively avoid pressure measurement inaccurate, and effectively avoid the damage of pressure measurement pressure meter 21.In addition, the pressure measurement gate valve 25 in the above-mentioned technical solutions of this embodiment and Compensating sluice gate valve 24 can adopt the ball valve of better performances, and water-level gauge 12 can adopt voltage withstand class greater than the water-level gauge of 5MPa, so that the compressive resistance of water-level gauge 12 is greater than the gas pressure of estimating.In addition, gas-water separation bucket 1 and interior keg float 3 also should be selected high voltage bearing material.Gas-water separation bucket 1 size can be set according to actual needs, the height of interior keg float 3 can determine that interior keg float 3 should be the bucket of sealing according to in-borehole gas predictable pressure value.
Coal petrography floor height positive pressure gas moisture provided by the invention is from the Auto-drainage pressure tester, by in gas-water separation bucket 1 inside interior keg float 3 being set, when buoyancy of water in the gas-water separation bucket 1 less than or equal to the gravity of interior keg float 3 and gas-water separation bucket in during 1 gas pressure sum, the outfall 11 of interior keg float 3 sealing gas-water separation buckets 1 lower surface, when buoyancy of water in the gas-water separation bucket 1 during greater than the gravity of interior keg float 3 and the gas pressure sum in the gas-water separation bucket 1, open outfall 11, water in the gas-water separation bucket 1 is discharged, measure the gas pressure of high barotropic state by the pressure tester 2 that is arranged on gas-water separation bucket 1 upper surface.Coal rock layer gas-water separation Auto-drainage pressure tester provided by the invention not only can be opened gas-water separation, measure fast and accurately gas pressure, can also realize automatic drainage function, simultaneously, Auto-drainage does not need to increase electric control gear and realizes among the present invention, both convenient and safety economy.
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 (6)
1. a coal petrography floor height positive pressure gas moisture is from the Auto-drainage pressure tester, it is characterized in that, comprise: gas-water separation bucket, pressure tester and interior keg float, the lower surface of described gas-water separation bucket is provided with outfall, described pressure tester is arranged on the upper surface of described gas-water separation bucket, and described interior keg float is arranged on the inside of described gas-water separation bucket;
Described pressure tester is used for sending into air-water mixture and gaging pressure in described gas-water separation bucket;
Described gas-water separation bucket is used for holding described air-water mixture;
Described interior keg float, be used at described gas-water separation bucket buoyancy of water during less than or equal to the gravity of described interior keg float and the gas pressure sum in the described gas-water separation bucket, seal described outfall, when buoyancy of water is greater than the gravity of described interior keg float and the gas pressure sum in the described gas-water separation bucket in described gas-water separation bucket, open described outfall.
2. device according to claim 1 is characterized in that, described gas-water separation bucket is round tank or rectangular-shape barrel, and the shape of described interior keg float is identical with the shape of described gas-water separation bucket.
3. device according to claim 1, it is characterized in that, described pressure tester comprises the pressure measurement four-way, the pressure measurement pressure meter, the pressure measurement gate valve, atmospheric pressure compensated equipment and Compensating sluice gate valve, the first end of described pressure measurement four-way is connected with hole sealing tube in the pressure measuring drill hole by pipeline, described pressure measurement gate valve is arranged on the pipeline of this end, the second end of described pressure measurement four-way is connected by the pressure tap of offering on pipeline and the gas-water separation bucket, the 3rd end of described pressure measurement four-way connects the pressure measurement pressure meter, the 4th end of described pressure measurement four-way is connected with described atmospheric pressure compensated equipment by pipeline, and described Compensating sluice gate valve is arranged on the pipeline of this end.
4. device according to claim 3 is characterized in that, described pressure measurement pressure meter is positioned at the extreme higher position of described pressure tester.
5. each described device is characterized in that according to claim 1-4, also comprises for the water level metering device of measuring gas-water separation bucket aqueous water height.
6. device according to claim 5 is characterized in that, the water-level gauge of described water level metering device for being connected by the water level hole of offering on pipeline and the gas-water separation bucket sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570542.3A CN103016055B (en) | 2012-12-25 | 2012-12-25 | Coal petrography floor height positive pressure gas water is separated Auto-drainage pressure tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570542.3A CN103016055B (en) | 2012-12-25 | 2012-12-25 | Coal petrography floor height positive pressure gas water is separated Auto-drainage pressure tester |
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| CN103016055A true CN103016055A (en) | 2013-04-03 |
| CN103016055B CN103016055B (en) | 2015-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103206243A (en) * | 2013-04-17 | 2013-07-17 | 淮南矿业(集团)有限责任公司 | Pressure hole drain |
| CN105626144A (en) * | 2016-03-07 | 2016-06-01 | 安徽理工大学 | Downward coal seam gas pressure measuring and hole drilling automatic water drainage device |
| CN105715227A (en) * | 2016-01-26 | 2016-06-29 | 中国矿业大学 | Self-sealed type hydraulic pressure self-removal device and method for upstream pressure measuring drill hole |
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| CN105626144A (en) * | 2016-03-07 | 2016-06-01 | 安徽理工大学 | Downward coal seam gas pressure measuring and hole drilling automatic water drainage device |
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| CN103016055B (en) | 2015-11-18 |
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