CN213392245U - Device for taking gas from gas extraction pipeline - Google Patents

Abstract

The utility model discloses a device for getting gas on gas drainage pipeline, relates to the field of gas mine collection, and a device for getting gas on gas drainage pipeline, which comprises an outer barrel, wherein the inner side of the outer barrel is provided with an inner barrel, the side wall of the outer barrel is provided with a first gas-taking structure, the bottom of the first gas-taking structure is provided with a second gas-taking structure, the top of the outer barrel is provided with a rotating hand valve, the bottom of the inner barrel is provided with a piston structure, the outer barrel comprises an outer barrel, the top of the outer barrel is fixedly connected with a first gas nozzle, the top of the outer barrel is fixedly connected with two stoppers, the inner barrel comprises an inner barrel, the top of the inner barrel is provided with a first gas hole, the side wall of the inner barrel is provided with a second gas hole; and simultaneously, the utility model discloses when using, can utilize the pressure differential of taking out and adopt pipeline center and wall to drain off the inner tube gas in, realize getting gas.

Description

Device for taking gas from gas extraction pipeline

Technical Field

The utility model relates to a gas mine field of gathering, specific be a device that is used for gas drainage pipeline to go up to get gas.

Background

The gas drainage is a technical measure of drilling, and pumping the gas in a coal bed or a mining area to the ground by using a drill hole (or a roadway), a pipeline and a vacuum pump.

In the coal mine gas treatment work, the gas concentration of a single drill hole can be tested, at the moment, gas is pumped out of the pumping pipe by the aid of the pumping cylinder, and the gas concentration is tested by the aid of the optical detector. However, during the test, because the gas in the extraction pipeline is in a negative pressure state, the gas extraction cylinder must be repeatedly extracted for ten times to ensure that the extracted gas is the gas in the extraction pipeline. Therefore, it is necessary to invent a gas extraction device with simple operation.

SUMMERY OF THE UTILITY MODEL

For solving the not enough that mentions in the above-mentioned background art, the utility model aims at providing a device that is used for gas to take out on the gas drainage pipeline, aims at taking out the gas of gas drainage pipeline simply effectively.

The purpose of the utility model can be realized by the following technical scheme:

a device for taking gas from a gas extraction pipeline comprises an outer barrel, wherein an inner barrel is arranged on the inner side of the outer barrel, a first gas production structure is arranged on the side wall of the outer barrel, a second gas production structure is arranged at the bottom of the first gas production structure, a rotary hand valve is arranged at the top of the outer barrel, and a piston structure is arranged at the bottom of the inner barrel;

the outer barrel comprises an outer barrel body, the top of the outer barrel body is fixedly connected with a first air nozzle, and the top of the outer barrel body is fixedly connected with two limiting blocks;

the inner cylinder comprises an inner cylinder body, a first air hole is formed in the top of the inner cylinder body, a second air hole is formed in the side wall of the inner cylinder body, and a third air hole is formed in the bottom of the second air hole.

Further, first gas production structure includes the second air cock, and the one end that the urceolus was kept away from to the second air cock is connected with first hose, and the one end that the second air cock was kept away from to first hose is connected with the rubber sleeve, and the one end that first hose was kept away from to the rubber sleeve is connected with the tubular metal resonator.

Further, the second gas production structure comprises a third gas nozzle, and one end, far away from the outer barrel, of the third gas nozzle is connected with a second hose.

Further, the piston structure includes the piston skirt, and piston skirt bottom fixedly connected with piston handle.

The utility model has the advantages that:

the device is used for connecting the metal pipe with the gas hole in the extraction pipeline and extending into the center of the extraction pipeline, the gas hole is sealed by the rubber sleeve, the second hose is connected with the adjacent gas hole in the extraction pipeline, the hand valve is rotated to enable the second gas hole and the third gas hole to correspond to the second gas nozzle and the third gas nozzle respectively, the hand valve is rotated after collection for a period of time, the second gas hole and the third gas hole do not correspond to the second gas nozzle and the third gas nozzle any longer, the first gas nozzle is connected with the gas concentration testing equipment, the hand valve is rotated to enable the first gas hole to correspond to the first gas nozzle, the piston skirt is pushed by the piston handle, gas in the inner cylinder enters the gas concentration testing equipment through the first gas nozzle, the gas concentration test is completed, and gas taking is realized while the gas in the inner cylinder can be exhausted by utilizing the pressure difference between the center of the extraction pipeline and the wall surface.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a general schematic view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic view of the internal structure at another angle of the present invention.

In the figure: 1. an outer cylinder; 10. a first air tap; 11. a limiting block; 12. an outer cylinder; 2. an inner barrel; 20. an inner cylinder; 21. a first air hole; 22. a second air hole; 23. a third air hole; 3. a first gas production structure; 30. a second air tap; 31. a first hose; 32. a rubber sleeve; 33. a metal tube; 4. a second gas production structure; 40. a third air tap; 41. a second hose; 5. rotating the hand valve; 6. a piston structure; 60. a piston skirt; 61. a piston handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

A device for taking gas from a gas extraction pipeline is characterized in that as shown in figure 1, an inner cylinder 2 is arranged on the inner side of an outer cylinder 1, a first gas production structure 3 is arranged on the side wall of the outer cylinder 1, a second gas production structure 4 is arranged at the bottom of the first gas production structure 3, a rotary hand valve 5 is arranged at the top of the outer cylinder 1, and a piston structure 6 is arranged at the bottom of the inner cylinder 2.

As shown in fig. 2, the outer tube 1 includes an outer tube 12, a first air faucet 10 is fixedly connected to the top of the outer tube 12, two limit blocks 11 are fixedly connected to the top of the outer tube 12, the first air faucet 3 includes a second air faucet 30, one end of the second air faucet 30 away from the outer tube 1 is connected to a first hose 31, one end of the first hose 31 away from the second air faucet 30 is connected to a rubber sleeve 32, one end of the rubber sleeve 32 away from the first hose 31 is connected to a metal pipe 33, the second air faucet 4 includes a third air faucet 40, and one end of the third air faucet 40 away from the outer tube 1 is connected to a second hose 41.

As shown in fig. 3, the inner cylinder 2 includes an inner cylinder 20, the top of the inner cylinder 20 is provided with a first air hole 21, the side wall of the inner cylinder 20 is provided with a second air hole 22, the bottom of the second air hole 22 is provided with a third air hole 23, the piston structure 6 includes a piston skirt 60, and the bottom of the piston skirt 60 is fixedly connected with a piston handle 61.

When the gas concentration testing device is used, the metal pipe 33 is connected with the gas hole in the extraction pipeline and extends into the center of the extraction pipeline, the gas hole is sealed by the rubber sleeve 32, the second hose 41 is connected with the adjacent gas hole in the extraction pipeline, the hand valve 5 is rotated and rotated, so that the second gas hole 22 and the third gas hole 23 respectively correspond to the second gas nozzle 30 and the third gas nozzle 40, after a period of collection, the hand valve 5 is rotated and rotated, so that the second gas hole 22 and the third gas hole 23 do not correspond to the second gas nozzle 30 and the third gas nozzle 40, the first gas nozzle 10 is connected with gas concentration testing equipment, and the hand valve 5 is rotated and rotated, so that the first gas hole 21 corresponds to the first gas nozzle 10; the piston skirt 60 is pushed by the piston handle 61, so that the gas in the inner cylinder 2 enters the gas concentration testing equipment through the first gas nozzle 10, and the gas concentration test is completed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (4)

1. The device for taking gas from the gas extraction pipeline comprises an outer cylinder (1), and is characterized in that an inner cylinder (2) is arranged on the inner side of the outer cylinder (1), a first gas production structure (3) is arranged on the side wall of the outer cylinder (1), a second gas production structure (4) is arranged at the bottom of the first gas production structure (3), a rotary hand valve (5) is arranged at the top of the outer cylinder (1), and a piston structure (6) is arranged at the bottom of the inner cylinder (2);

the outer cylinder (1) comprises an outer cylinder body (12), the top of the outer cylinder body (12) is fixedly connected with a first air nozzle (10), and the top of the outer cylinder body (12) is fixedly connected with two limiting blocks (11);

the inner cylinder (2) comprises an inner cylinder body (20), a first air hole (21) is formed in the top of the inner cylinder body (20), a second air hole (22) is formed in the side wall of the inner cylinder body (20), and a third air hole (23) is formed in the bottom of the second air hole (22).

2. The device for taking gas from a gas extraction pipeline according to claim 1, wherein the first gas extraction structure (3) comprises a second gas nozzle (30), one end of the second gas nozzle (30), which is far away from the outer cylinder (1), is connected with a first hose (31), one end of the first hose (31), which is far away from the second gas nozzle (30), is connected with a rubber sleeve (32), and one end of the rubber sleeve (32), which is far away from the first hose (31), is connected with a metal pipe (33).

3. The device for extracting gas from a gas extraction pipeline according to claim 1, wherein the second gas extraction structure (4) comprises a third gas nozzle (40), and a second hose (41) is connected to one end, far away from the outer cylinder (1), of the third gas nozzle (40).

4. The device for extracting gas from a gas extraction pipeline according to claim 1, wherein the piston structure (6) comprises a piston skirt (60), and a piston handle (61) is fixedly connected to the bottom of the piston skirt (60).

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