CN102486426A - Gas pressure measurement device - Google Patents
Gas pressure measurement device Download PDFInfo
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- CN102486426A CN102486426A CN2010105821641A CN201010582164A CN102486426A CN 102486426 A CN102486426 A CN 102486426A CN 2010105821641 A CN2010105821641 A CN 2010105821641A CN 201010582164 A CN201010582164 A CN 201010582164A CN 102486426 A CN102486426 A CN 102486426A
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Abstract
The invention discloses a gas pressure measurement device which comprises a steel pot body, a gas and water separation device and a pressure measurement device, wherein the steel pot body receives mixed gas consisting of gas in a measured environment and steam through a gas inlet of the steel pot body, and stores the mixed gas; the gas and water separation device is connected with a gas outlet positioned above the steel pot body, and is used for performing gas and water separation on the mixed gas output by the steel pot body; and the pressure measurement device is used for measuring pressure of the gas output by the gas and water separation device to acquire the pressure of the gas subjected to the gas and water separation. According to the gas pressure measurement device, the gas and water mixture passes through the steel pot body and the gas and water separation device, and generates pressure in the steel pot body; the pressure is displayed in the pressure measurement device; and a real value of the pressure of the gas in a coal seam is detected.
Description
Technical field
The present invention relates to measuring technique of gas pressure in coal seam, specially refer to a kind of gas pressure measurement mechanism.
Background technology
The size of coal-bed gas pressure is an important indicator of assessment coal seam outburst hazard and coal seam gas-bearing capacity size, can take corresponding outburst prevention measures and gas pumping mode according to this index.Therefore, the size that accurately measures the actual gas pressure in coal seam just seems particularly important.
The method of existing measurement coal-bed gas pressure size mainly is that a tensimeter directly is installed outside the boring of sealing the hole, needs the people during reading and removes to read manometric numerical value to the scene.The method of this measurement gas pressure need expend a manpower and arrive the collection in worksite data specially; Can not directly read the size of pressure from the ground monitoring chamber, simultaneously, the measured pressure size of this method is inaccurate; If in the boring water is arranged, what record will be the blend pressure of gas G&W.If obtain gas pressure accurately, generally also to remove the pressure of water generates.
In sum, coal-bed gas pressure measuring method of the prior art can't accurately record the actual pressure of coal-bed gas, and simultaneously, the method for image data is also relatively backward, and unreliable.And then directly have influence on coal seam outburst hazard prediction accuracy, thus taked inappropriate extinction measure, come very big hidden danger for the colliery securing band.
Summary of the invention
The invention discloses a kind of gas pressure measurement mechanism; Cross tomography in order to solve the colliery deep mining; Structural belt gas air water mixes, and can't thoroughly methane gas and hydraulic pressure be separated, and accurately measure the problem of coal-bed gas pressure; Thereby avoid measuring the inaccurate potential safety hazard of bringing, for the coal-mine gas comprehensive regulation provides technical guarantee because of coal-bed gas pressure.
The invention provides a kind of gas pressure measurement mechanism, comprising:
The cylinder of steel body, said cylinder of steel body receives methane gas and the mixed gas of water vapour in measurement environment through its air intake opening, and said mixed gas is stored;
Gas and water separator, said gas and water separator links to each other with the gas outlet that is positioned at said cylinder of steel body top, is used for the mixed gas from said cylinder of steel body output is carried out gas-water separation;
Device for pressure measurement is used for the gas of said gas and water separator output is carried out the measurement of pressure, with the gas pressure after the acquisition gas-water separation.
Gas pressure measurement mechanism provided by the invention through with behind air-water mixture process cylinder of steel body and the gas and water separator, produces pressure in the cylinder of steel body, its size shows in device for pressure measurement, records the actual value of coal-bed gas pressure.
Description of drawings
For the clearer explanation embodiment of the invention or technical scheme of the prior art; To do with simple introduction the accompanying drawing of required use in embodiment or the description of the Prior Art below; Conspicuous, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The gas pressure measurement mechanism structural representation that Fig. 1 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the present embodiment below, the technical scheme in the present embodiment will be carried out clear, complete description, obviously; Described embodiment is this a part of embodiment, rather than whole embodiment.Based on the embodiment in the basis, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of this protection.
The structural representation of the gas pressure measurement mechanism that Fig. 1 provides for the embodiment of the invention, as shown in Figure 1, this gas pressure measurement mechanism comprises: cylinder of steel body 1, gas and water separator 2 and device for pressure measurement 3.Wherein, cylinder of steel body 1 receives methane gas and the mixed gas of water vapor in measurement environment through its air intake opening 11, and mixed gas is stored.Gas and water separator 2 links to each other with the gas outlet that is positioned at cylinder of steel body 1 top, is used for the mixed gas of output in the cylinder of steel body 1 is carried out gas-water separation, and the water of separating can also be back in the cylinder of steel body 1 through the liquid back pipe of gas and water separator 2 bottoms.Device for pressure measurement 3 is used for the gas of gas and water separator 2 outputs is carried out the measurement of pressure, with the gas pressure after the acquisition gas-water separation.Generally, air intake opening 11 is positioned at the top of cylinder of steel body 1, is higher than the early warning liquid level of cylinder of steel body 1.Air intake opening 11 can link to each other with the boring of sealing the hole through devices such as flexible pipes, because the effect of coal-bed gas pressure, the Device in Gas in the coal seam and the mixed gas of water vapor enter in the cylinder of steel body 1 through air intake opening 11.
Wherein, also be provided with between gas and water separator 2 and the device for pressure measurement 3: gas-holder 4.This gas-holder 4 is used to store the gas that gas and water separator 2 is separated.
Further, between gas and water separator 2 and gas-holder 4, also be provided with: unidirectional conducting valve 5, this unidirectional conducting valve 5 are used to limit the gas flow direction and are: the direction of gas and water separator 2 to gas-holder 4.The conducting during greater than the pressure in the gas-holder 4 of the pressure of this unidirectional conducting valve 5 in cylinder of steel body 1, the pressure in cylinder of steel body 1 end during less than the pressure in the gas-holder 4, and after unidirectional conducting valve 5 ended, it is constant that the pressure in the gas-holder 4 keep.
Further, also be connected with vent valve on the gas-holder 4, this vent valve is used for getting rid of the gas of gas-holder 4.Behind the gaseous tension in measuring gas-holder 4, can the gas in the gas-holder 4 be carried out emptying, with convenient measurement next time through this vent valve.
Further, this gas pressure measurement mechanism can also comprise: the motorized valve 6 and the controller 7 that discharges water automatically.Wherein, motorized valve 6 carries out switch motion in the place, dewatering outlet of cylinder of steel body 1 according to the control command of the controller 7 that discharges water automatically.Automatically the controller 7 that discharges water is arranged on the outside of cylinder of steel body 1, is electrical connected with motorized valve 6, is used for sending control command according to the liquid level in the cylinder of steel body 1.Need to prove, in mixed gas gets into cylinder of steel body 1 after, water is owing to the action of gravity of self, major part has dropped into the bottom of cylinder of steel body 1, has only on a small quantity not entered into gas and water separator 2 by the mixed gas of complete gas-water separation.Along with the water in the cylinder of steel body 1 is more and more; When liquid level has reached the height that is provided with in advance; Automatically the controller 7 of discharging water can send control command to the motorized valve 6 that is positioned at place, cylinder of steel body 1 dewatering outlet, and motorized valve 6 is opened according to control command, realizes the discharge of water in the cylinder of steel body 1.The time of opening of motorized valve 6 need be carried out suitable control, so that motorized valve 6 cut out at once before the liquid level of water was lower than the height of retaining valve 6 on cylinder of steel body 1 in the cylinder of steel body 1, leaks from motorized valve 6 to avoid gas.
Wherein, can also detect the liquid level of cylinder of steel body 1 through the liquid level sensor 8 that is positioned at cylinder of steel body 1.The height of liquid level sensor 8 can be set according to actual needs, is installed in usually on the early warning liquid level.A liquid level sensor 8 can also be installed on the height of motorized valve 6 again, whether drop under the height of motorized valve 6, so that the controller 7 that discharges water automatically controls cutting out of motorized valves 6 to detect liquid level.
Further, this gas pressure measurement mechanism can also comprise: deslagging device 9, this deslagging device 9 is positioned at cylinder of steel body 1, is used for the waste residue that accumulates in the cylinder of steel body 1 is removed.Here need to prove,, comprise solids such as a lot of cinders because the applied environment of this device is more abominable; When mixed gas gets into cylinder of steel body 1, may carry the solid impurity of fine particle, therefore; After this device work regular hour section, need remove this part waste residue.Generally, deslagging device 9 is positioned at the lower position of cylinder of steel body 1, to make things convenient for staff's operation.
Further, in order to realize remote monitoring, this gas pressure measurement mechanism can also comprise: long-distance monitorng device 10.This long-distance monitorng device 10 can be used for receiving and showing the measuring-signal of device for pressure measurement 3.On the ordinary meaning, long-distance monitorng device 10 can be equipment such as computing machine.The gas pressure measurement mechanism that has comprised long-distance monitorng device 10; Can be so that the staff need not enter into dangerous working sites such as tunnel; But carry out on-the-spot monitoring through the long-distance monitorng device 10 that is positioned at ground or workstation, improved staff's work safety and work efficiency.
Further, also be provided with mixture pressure measurement mechanism 12 at air intake opening 11 places of cylinder of steel body 1, this mixture pressure measurement mechanism 12 is measured the mixture pressure at air intake opening 11 places.Accordingly, long-distance monitorng device 10 also is used to receive and show the measuring-signal of mixture pressure measurement mechanism 12, with the contrast and the analysis of the gas pressure after realization and the gas-water separation.
Need to prove that mixture pressure measurement mechanism 12 can be connected air intake opening 11 places of cylinder of steel body 1 through threeway.
The concrete principle of work of gas pressure measurement mechanism in the present embodiment can for:
After the air-water mixture that comes out by holing gets into cylinder of steel body 1 and gas and water separator 2, in the cylinder of steel body, produce pressure, its size shows in mixture pressure measurement mechanism 12.When cylinder of steel body 1 internal pressure during greater than the pressure in the gas-holder 4, unidirectional conducting valve 5 conductings, the force value in the gas-holder 4 show in device for pressure measurement 3.Along with the water in the cylinder of steel body 1 is more and more; When water level reached the position of liquid level sensor 8, liquid level sensor 8 passed to the controller 7 that discharges water automatically with liquid level, and the controller 7 control motorized valves 6 that discharge water are automatically opened and discharged water; Open a period of time; Motorized valve 6 cuts out, and the liquid level of controller 7 meetings in cylinder of steel body 1 that wherein discharge water automatically drops to the dewatering outlet of cylinder of steel body 1 closes before at once, leaks to avoid gas.When discharging water, the pressure of cylinder of steel body 1 descends, and unidirectional conducting valve 5 ends, and the pressure size in the gas-holder 4 is constant, and when the pressure in the cylinder of steel body 1 was returned to the force value that is higher than in the gas-holder 4, the conducting once more of unidirectional conducting valve 5 went round and began again.Thereby record the maximal value of coal-bed gas pressure, simultaneously, water has been bled off, and its pressure can not act on the device for pressure measurement 3, and what device for pressure measurement 3 recorded is exactly the actual value of gas pressure.
The gas pressure measurement mechanism that the embodiment of the invention provides has solved and has crossed tomography in the deep mining process of colliery, gas air water blend pressure is excessive when meeting structural belt; Can't be thoroughly with carrying out the problem that gas pressure is measured after methane gas and the separated form water, for the coal-mine gas comprehensive regulation provides reliable guidance.
What should explain at last is: above embodiment is only in order to technical scheme of the present invention to be described but not limit it; Although with reference to preferred embodiment to originally having carried out detailed explanation; Those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement this technical scheme, also can not make amended technical scheme break away from the spirit and the scope of technical scheme of the present invention and these are revised or be equal to replacement.
Claims (10)
1. a gas pressure measurement mechanism is characterized in that, comprising:
The cylinder of steel body, said cylinder of steel body receives methane gas and the mixed gas of water vapour in measurement environment through its air intake opening, and said mixed gas is stored;
Gas and water separator, said gas and water separator links to each other with the gas outlet that is positioned at said cylinder of steel body top, is used for the mixed gas from said cylinder of steel body output is carried out gas-water separation;
Device for pressure measurement is used for the gas of said gas and water separator output is carried out the measurement of pressure, with the gas pressure after the acquisition gas-water separation.
2. gas pressure measurement mechanism according to claim 1 is characterized in that, also is provided with between said gas and water separator and the said device for pressure measurement: gas-holder;
Said gas-holder is used to store the gas that said gas and water separator is separated.
3. gas pressure measurement mechanism according to claim 2 is characterized in that, also is provided with between said gas and water separator and the said gas-holder: unidirectional conducting valve;
Said unidirectional conducting valve is used to limit the gas flow direction: said gas and water separator to said gas-holder;
And the pressure in the said cylinder of steel body is during greater than the pressure in the said gas-holder, said unidirectional conducting valve conducting; Pressure in the said cylinder of steel body is during less than the pressure in the said gas-holder, and said unidirectional conducting valve ends.
4. according to claim 2 or 3 described gas pressure measurement mechanisms, it is characterized in that, also be connected with on the said gas-holder: vent valve;
Said vent valve is used for getting rid of the gas of said gas-holder.
5. gas pressure measurement mechanism according to claim 1 is characterized in that, also comprises: the motorized valve and the controller that discharges water automatically;
Said motorized valve is positioned at the place, dewatering outlet of said cylinder of steel body, carries out switch motion according to the control command of the said controller that discharges water automatically;
Said controller and the said motorized valve of discharging water automatically is electrical connected, and is used for sending control command according to the liquid level in the said cylinder of steel body.
6. gas pressure measurement mechanism according to claim 5 is characterized in that, also comprises: liquid level sensor;
Said liquid level sensor is positioned at said cylinder of steel body, is used to detect the liquid level in the said cylinder of steel body, and said liquid level is sent to the said controller that discharges water automatically.
7. gas pressure measurement mechanism according to claim 1 is characterized in that, also comprises: deslagging device;
Said deslagging device is positioned at said cylinder of steel body, is used for the waste residue that accumulates in the said cylinder of steel body is removed.
8. gas pressure measurement mechanism according to claim 1 is characterized in that, also comprises: long-distance monitorng device;
Said long-distance monitorng device is used to receive and show the measuring-signal of said device for pressure measurement.
9. gas pressure measurement mechanism according to claim 8 is characterized in that, the air intake opening place of said cylinder of steel body also is provided with the mixture pressure measurement mechanism, is used to measure the mixture pressure at said air intake opening place;
Accordingly, said long-distance monitorng device also is used to receive and show the measuring-signal of said mixture pressure measurement mechanism.
10. gas pressure measurement mechanism according to claim 9 is characterized in that, said mixture pressure measurement mechanism is connected the air intake opening place of said cylinder of steel body through threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105821641A CN102486426A (en) | 2010-12-06 | 2010-12-06 | Gas pressure measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105821641A CN102486426A (en) | 2010-12-06 | 2010-12-06 | Gas pressure measurement device |
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| CN102486426A true CN102486426A (en) | 2012-06-06 |
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| CN2010105821641A Pending CN102486426A (en) | 2010-12-06 | 2010-12-06 | Gas pressure measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071317A (en) * | 2013-01-28 | 2013-05-01 | 河南理工大学 | Harmful gas and water separation device for goaf water in coal mine |
| CN109294652A (en) * | 2018-11-30 | 2019-02-01 | 开滦能源化工股份有限公司吕家坨矿业分公司 | A kind of gas pump drainage system air water automatic separating apparatus |
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| CN2866854Y (en) * | 2006-01-06 | 2007-02-07 | 汤洪辉 | Refuse fill burying marsh gas power generating device |
| JP2007183160A (en) * | 2006-01-06 | 2007-07-19 | Sumiko Consultant Kk | Device for observing gas-liquid mixed fluid in the ground |
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| CN103071317A (en) * | 2013-01-28 | 2013-05-01 | 河南理工大学 | Harmful gas and water separation device for goaf water in coal mine |
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| CN109294652A (en) * | 2018-11-30 | 2019-02-01 | 开滦能源化工股份有限公司吕家坨矿业分公司 | A kind of gas pump drainage system air water automatic separating apparatus |
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Application publication date: 20120606 |