CN215672178U

CN215672178U - Gas-water separator in pressure measuring air chamber

Info

Publication number: CN215672178U
Application number: CN202122242450.XU
Authority: CN
Inventors: 江坤
Original assignee: Huainan Mining Group Co Ltd
Current assignee: Huainan Mining Group Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-01-28
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a gas-water separation device in a pressure measuring air chamber, wherein the top end of a cylinder body is connected with a water outlet point of a coal bed, the cylinder body comprises a water discharge pipe, the upper end and the lower end of an inner cavity of the cylinder body are fixedly connected with a bag, the inner cavity of the cylinder body is connected with a grouting pipe, the two ends of the grouting pipe respectively extend to the inner cavities of the bags, one end of the water discharge pipe simultaneously penetrates through the two bags and extends to a hollow area of the inner cavity of the cylinder body, the upper end of the water discharge pipe is provided with a limiting groove, the inner cavity of the water discharge pipe is provided with a gas-water separator, the lower end of the gas-water separator is matched with the limiting groove, the outer side of the upper end of the water discharge pipe is provided with a plurality of water inlet holes, the gas-water separation is successfully realized, the traditional water discharge, blocking and water discharge ideas before the pressure measurement of a water outlet hole are changed, the complex procedures of water discharge, water blocking, water injection and the like before the pressure measurement are omitted, the construction cost is reduced, and the technical problem that the pressure can not be effectively measured when the coal seam roof is drained is solved.

Description

Gas-water separator in pressure measuring air chamber

Technical Field

The utility model relates to the technical field of coal rock stratum pressure measurement, in particular to a gas-water separation device in a pressure measurement gas chamber.

Background

Coal mine gas is one of important factors threatening the safety production of a coal mine, in order to ensure the safety production of the coal mine, the gas pressure in a coal rock layer needs to be measured in advance, most of the conventional mine sides still adopt the traditional 'two-plugging one-injection' process for hole sealing, but after hole sealing and grouting are completed, a pressure measuring air chamber and a pressure measuring pipe are still easily affected by roof crack water and are quickly filled with water in a penetrating manner, so that a pressure gauge outside a hole cannot measure the gas pressure in the air chamber.

The pressure is measured under the condition that the coal seam roof is discharged, whether a capsule hole sealing pressure measuring method or a grouting hole sealing pressure measuring method is adopted, the water outlet points below the pressure measuring air chamber can only be blocked and do not enter the pressure measuring air chamber, and the water outlet points above and around the air chamber can not be blocked, so that the air chamber is filled with water and then flows out along the pressure measuring pipe, and the pressure gauge can not be installed to effectively measure the pressure.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: provided is a gas-water separation device capable of ensuring the dryness and airtightness of a pressure measurement air chamber and the pressure measurement result.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an interior gas-water separator of pressure measurement air chamber, includes the barrel, the top of barrel is connected with the play water spot in coal seam, the barrel includes the bleeder line, equal fixedly connected with bag in both ends about the inner chamber of barrel, the inner chamber of barrel is connected with the slip casting pipe, the both ends of slip casting pipe extend to the inner chamber of bag respectively, two bags are run through simultaneously to the one end of bleeder line, and extend to the hollow region of barrel inner chamber, the upper end of bleeder line is equipped with the restriction groove, gas-water separator is installed to the inner chamber of bleeder line, just gas-water separator's lower extreme matches with the restriction groove, a plurality of inlet opening has all been seted up in the upper end outside of bleeder line.

Preferably: the inner cavity of the barrel is connected with a slurry return pipe, an opening of the slurry return pipe is communicated with the grouting pipe, the slurry return pipe extends to the lower end of the bag of the barrel, and one end of the outer side of the slurry return pipe is fixedly connected with a valve.

Preferably: the inner chamber of barrel is connected with the pressure-measuring pipe, the one end fixedly connected with three-way valve of pressure-measuring pipe extension to the barrel outside, the one end of three-way valve is connected with the manometer, and remaining one end is connected with pressure sensor.

Preferably: the pressure measuring pipe is far away from one end of the three-way valve, penetrates through the two bags simultaneously, and extends to the hollow area of the barrel body until penetrating into the coal bed.

Preferably: the one end that the slip casting pipe extends to the barrel outside is connected with the grouting pump.

Preferably: one end of the water discharge pipe extending to the outer side of the cylinder body is fixedly connected with a water discharge device.

Preferably: the lower end of the gas-water separator is always higher than the bag close to the coal bed.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, cement slurry is injected into the grouting pipe to block the bag, so that no water flows out from the pressure measuring pipe, the reading of the pressure gauge is normal, and the gas-water separator is arranged in the inner cavity of the water discharge pipe, so that the gas-water separation is successfully realized in the air chamber, the traditional water discharge, blocking and drainage ideas before the pressure measurement of the water outlet drill hole are changed, the complex procedures of water discharge, water blocking, grouting and the like before the pressure measurement are omitted, the construction cost is reduced, and the technical problem that the pressure measurement cannot be effectively carried out when the coal bed top plate is discharged is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of an apparatus for separating gas from water in a pressure measuring gas chamber according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic structural view of a portion A of the gas-water separator in the pressure measuring gas chamber according to the embodiment of the present invention;

in the figure: 1-a cylinder body; 11-pouch; 12-piezometric tube; 14-grouting pipes; 15-a water discharge pipe; 151-limiting groove; 152-a water inlet hole; 16-a slurry return pipe; 2-three-way valve; 3-a pressure gauge; 4-grouting pump; 5-a water discharging device; 6-a valve; 7-gas-water separator.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.

Referring to fig. 1, the embodiment discloses a gas-water separator in a pressure measuring gas chamber, which comprises a cylinder 1, a three-way valve 2, a pressure gauge 3, a grouting pump 4 and a water discharging device 5.

Referring to fig. 1, the shaft section of the barrel 1 is rectangular, the top end of the barrel 1 is connected with a water outlet point of a coal seam, the barrel 1 comprises a bag 11, a pressure measuring pipe 12, a grouting pipe 14, a water discharge pipe 15 and a slurry return pipe 16, two bags 11 are respectively installed at the upper end and the lower end of an inner cavity of the bag 11, one end of the pressure measuring pipe 12 enters the inner cavity of the barrel 1 and simultaneously penetrates through the two bags 11 until the pressure measuring pipe extends to the deep part of the coal seam;

the grouting pipe 14 is positioned in the inner cavity of the barrel body 1, and both ends of the grouting pipe 14 are positioned in the inner cavity of the bag 11 and are provided with through holes; the bag 11 can be effectively and completely blocked by the grouting pipe 14 when the grouting pipe 14 is filled with slurry;

one end of the water discharge pipe 15 enters the inner cavity of the barrel body 1 and penetrates through the two bag bags 11 at the same time and extends to the hollow area of the barrel body 1, a plurality of water inlet holes 152 are formed in the outer side of the extending part of the water discharge pipe 15, and a limiting groove 151 is fixedly connected to the position, higher than the bag 11 close to the water outlet point, of the inner cavity of the water discharge pipe 15.

In this embodiment, the pressure measuring pipe 12 extends to the one end fixedly connected with three-way valve 2 in the barrel 1 outside, the one end of three-way valve 2 is connected with manometer 3, and remaining one end is connected with pressure sensor.

In this embodiment, the grouting pump 4 is connected to one end of the grouting pipe 14 extending to the outside of the cylinder 1.

In this embodiment, the water discharge device 5 is fixedly connected to one end of the water discharge pipe 15 extending to the outside of the cylinder 1.

In this embodiment, the inner cavity of the cylinder 1 is connected with a slurry return pipe 16, an opening of the slurry return pipe 16 is communicated with the grouting pipe 14, and one end of the slurry return pipe 16 extending to the outer side of the cylinder 1 is fixedly connected with a valve 6.

Referring to fig. 2, the gas-water separator 7 is installed in the inner cavity of the water discharge pipe 15, and the lower end of the gas-water separator 7 is matched with the limiting groove 151 and can be completely embedded.

The working principle of the embodiment is as follows: a worker enters a mine hole, after a drilling machine drills a coal bed to form a hole, the integrity, the coal position and the water outlet position in the hole are detected by a drilling sight glass, the barrel body 1 is connected with the water outlet, one end of the pressure measuring pipe 12 extends into the coal bed (the other end is connected with the pressure gauge 3 and the pressure sensor), the grouting pump 4 is started to perform grouting on the grouting pipe 14, the grouting pipe 14 is communicated with the bag 11 and the slurry return pipe 16, so that the bag 11 is completely blocked by slurry until the bag 11 blocks the hole opening, meanwhile, the coal bed and the upper water outlet can flow into a hollow area (a pressure measuring air chamber) in the inner cavity of the barrel body, when the accumulated water in the hollow area rises to a certain height, the gas-water separator 7 can be automatically opened from the inner cavity of the limiting groove 151, the water in the hollow area flows into the water discharge pipe 15, automatic water discharge is realized through the water discharge device 5, the water level of the hollow area is discharged below the limiting groove 151, and the gas-water separator 7 is automatically closed to enable the hollow area to return to be in a closed state, so circulate, the water level is controlled in the piezometer pipe below all the time, the aridity of cavity has been guaranteed, and then detect the coal seam through manometer 3, after the detection finishes, accomplish the operation, cavity gas-water separation is successfully realized to this application, traditional before having changed out the water drilling pressure measurement put, stifled, the drainage thinking, complicated processes such as drain, stifled water, slip casting before having saved the pressure measurement have reduced construction cost, the while also has solved the technical problem of unable effective pressure measurement when the coal seam roof goes out water.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The above-mentioned embodiments only represent the embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the concept of the present invention, and these embodiments are all within the protection scope of the present invention.

Claims

1. The utility model provides an interior gas-water separator of pressure measurement air chamber which characterized in that: the coal seam water-gas separator comprises a barrel body (1), wherein the top end of the barrel body (1) is connected with a water outlet point of a coal seam, the barrel body (1) comprises a water drain pipe (15), bag bags (11) are fixedly connected to the upper end and the lower end of an inner cavity of the barrel body (1), an injection pipe (14) is connected to the inner cavity of the barrel body (1), two ends of the injection pipe (14) extend to the inner cavity of the bag bags (11) respectively, one end of the water drain pipe (15) penetrates through the two bag bags (11) simultaneously and extends to a hollow space of the inner cavity of the barrel body (1), a limiting groove (151) is arranged at the upper end of the water drain pipe (15), a gas-water separator (7) is installed in the inner cavity of the water drain pipe (15), the lower end of the gas-water separator (7) is matched with the limiting groove (151), and a plurality of water inlet holes (152) are formed in the outer side of the upper end of the water drain pipe (15).

2. The gas-water separation device in a pressure measuring gas chamber according to claim 1, characterized in that: the inner cavity of the barrel body (1) is connected with a slurry return pipe (16), an opening of the slurry return pipe (16) is communicated with the grouting pipe (14), and one end, extending to the outer side of the barrel body (1), of the slurry return pipe (16) is fixedly connected with a valve (6).

3. The gas-water separation device in a pressure measuring gas chamber according to claim 1, characterized in that: the inner chamber of barrel (1) is connected with pressure-measuring pipe (12), one end fixedly connected with three-way valve (2) in pressure-measuring pipe (12) extension to the barrel (1) outside, the one end of three-way valve (2) is connected with manometer (3), and remaining one end is connected with pressure sensor.

4. The gas-water separation device in a pressure measuring gas chamber according to claim 3, wherein: the pressure measuring pipe (12) is far away from one end of the three-way valve (2), penetrates through the two bags (11) simultaneously, and extends to the hollow area of the barrel body (1) until penetrating into a coal bed.

5. The gas-water separation device in a pressure measuring gas chamber according to claim 1, characterized in that: and one end of the grouting pipe (14) extending to the outer side of the barrel body (1) is connected with a grouting pump (4).

6. The gas-water separation device in a pressure measuring gas chamber according to claim 1, characterized in that: one end of the water discharge pipe (15) extending to the outer side of the cylinder body (1) is fixedly connected with a water discharge device (5).

7. The gas-water separation device in a pressure measuring gas chamber according to claim 1, characterized in that: the lower end of the gas-water separator (7) is always higher than the bag (11) close to the coal seam.