CN219431883U - Gas negative pressure extraction device - Google Patents

Abstract

The utility model discloses a gas negative pressure extraction device which comprises an extraction equipment main body, wherein a piston cavity is arranged in the extraction equipment main body, the top of the extraction equipment main body is connected with an extraction pipe and an exhaust pipe which are communicated with the interior of the piston cavity, a piston plate is arranged in the interior of the piston cavity in a connecting manner, an air pump is arranged in the interior of the extraction equipment main body in a connecting manner, and the air pump is connected with an air extraction pipe which extends to the outside and an air outlet pipe which is communicated with the interior of the piston cavity. Compared with the prior art, the utility model has the advantages that: the device can extract gas through the piston type gas extraction pipeline in a negative pressure state formed by the piston cavity, so that the gas can be efficiently and successfully extracted in the pipeline in the pressure of the pipeline.

Description

Gas negative pressure extraction device

Technical Field

The utility model relates to the technical field of gas extraction equipment, in particular to a gas negative pressure extraction device.

Background

The gas is formed by decomposing cellulose and organic matters under the action of anaerobic bacteria at the initial stage of coal accumulation of ancient plants, and is continuously generated under the actions of physics and chemistry at the same time of coal formation in a high-temperature and high-pressure environment, so that the gas is conveyed often to be conveyed by a pipeline, the gas in the pipeline is often required to be extracted and sampled in the regular maintenance, the gas in the pipeline is sampled in the prior art basically by directly deflating and sampling the pipeline, and the gas in the pipeline is sometimes insufficient in quantity and cannot be conveyed outwards, thereby leading to failure extraction or low extraction efficiency.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a gas negative pressure extraction device capable of rapidly extracting aiming at the defects in the background technology.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a gas negative pressure extraction device, includes extraction equipment main part, extraction equipment main part in be equipped with the piston chamber, extraction equipment main part top connect and be equipped with extraction pipe and the blast pipe with the interior intercommunication of piston chamber, the piston intracavity in-connection be equipped with the piston board, extraction equipment main part in-bottom connect and be equipped with the aspiration pump, the aspiration pump connect be equipped with extend to outside exhaust pipe and with the outlet duct of the interior intercommunication of piston chamber.

Further, the extraction pipe and the exhaust pipe are respectively connected with a first electric control valve and a second electric control valve, and the extraction pipe is connected with a third electric control valve, so that gas is conveniently prevented from being exhausted or entering from a corresponding pipeline when the extraction pipe is not used.

Furthermore, the top connection in the piston chamber be equipped with the baffle, the top be located the baffle top connection and be equipped with pressure sensing in the piston chamber, the convenience is responded to internal pressure.

Furthermore, the extraction equipment main body is internally connected with a controller and a rechargeable storage battery, so that control and power supply are convenient.

Furthermore, the front side of the extraction equipment main body is connected with a display panel, a control button and a switch which are electrically connected with the controller, so that the electric device can be conveniently matched and controlled.

Furthermore, the top of the extraction pipe and the top of the exhaust pipe are respectively in threaded connection with a pipeline connecting pipe and a sampling piece, so that the auxiliary sampling and storage are facilitated.

Furthermore, the sampling piece in be equipped with the sampling chamber, the connection be equipped with control valve on the sampling piece, conveniently deposit the sample.

Compared with the prior art, the gas negative pressure extraction device has the advantages that: the device can extract gas through the piston type gas extraction pipeline in a negative pressure state formed by the piston cavity, so that the gas can be efficiently and successfully extracted in the pipeline in the pressure of the pipeline.

Drawings

Fig. 1 is a schematic diagram of a positive cross-sectional structure of a gas negative pressure extraction device according to the present utility model.

Fig. 2 is a schematic side sectional view of a gas negative pressure extraction device according to the present utility model.

Fig. 3 is a schematic diagram of a front view structure of a gas negative pressure extraction device according to the present utility model.

FIG. 4 is a schematic sectional view of a pipe connecting tube of a gas negative pressure extraction device according to the present utility model.

Fig. 5 is a schematic cross-sectional view of a sampling member of a gas negative pressure extraction device according to the present utility model.

As shown in the figure: 1. the device comprises a pumping equipment main body, 2, a piston cavity, 3, a pumping pipe, 4, an exhaust pipe, 5, a piston plate, 6, an air pump, 7, an exhaust pipe, 8, an air outlet pipe, 9, a first electric control valve, 10, a second electric control valve, 11, a third electric control valve, 12, a baffle, 13, a pressure sensor, 14, a controller, 15, a rechargeable storage battery, 16, a display panel, 17, a control button, 18, a switch, 19, a pipeline connecting pipe, 20, a sampling piece, 21, a control valve, 22 and a sampling cavity.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

1-5, a gas negative pressure extraction device, including extraction equipment main part 1, extraction equipment main part 1 in be equipped with piston chamber 2, extraction equipment main part 1 top connect and be equipped with piston chamber 2 in the extraction pipe 3 and blast pipe 4 of intercommunication, piston chamber 2 in-connection be equipped with piston plate 5, extraction equipment main part 1 in the bottom connect and be equipped with aspiration pump 6, aspiration pump 6 connect and be equipped with extend to outside aspiration tube 7 and with the outlet duct 8 of piston chamber 2 in the bottom intercommunication.

The extraction pipe 3 and the exhaust pipe 4 are respectively connected with a first electric control valve 9 and a second electric control valve 10, the exhaust pipe 7 is connected with a third electric control valve 11, and the first electric control valve 9, the second electric control valve 10 and the third electric control valve 11 are opened and closed, so that gas leakage or gas entering can be prevented in the use process of the equipment, and the third electric control valve 11 and the exhaust pump 6 are connected in series and simultaneously are closed.

The top in the piston cavity 2 is connected and is provided with a baffle 12, and the top in the piston cavity 2 is positioned above the baffle 12 and is connected and provided with a pressure sensor 13.

The extraction equipment main body 1 is internally connected with a controller 14 and a rechargeable storage battery 15, and the front side of the extraction equipment main body 1 is connected with a display panel 16, a control button 17 and a switch 18 which are electrically connected with the controller 14.

The utility model discloses a sampling pipe, take out and take out pipe 3 and blast pipe 4 top threaded connection respectively be equipped with pipe connection pipe 19 and sampling piece 20, sampling piece 20 in be equipped with sampling chamber 22, sampling piece 20 on connect and be equipped with control valve 21, take out and take out pipe 3 and blast pipe 4 threaded connection's screw hole, take out and take out pipe 3 and blast pipe 4 external connection screw thread, control valve 21 establishes promptly at threaded hole, for manual valve, the size pattern of pipe connection pipe 19 matches with the pipeline of waiting to take out to conveniently carry out sealing connection with waiting to take out the sampling pipeline.

In the concrete implementation of the utility model, the pipeline connecting pipe 19 is connected to the sampling pipe 3, the air pump 6 is used for exhausting air, the piston plate 5 is positioned at the inner top of the piston cavity 2, the pipeline connecting pipe 19 is connected with a pipeline to be sampled, the first electric control valve 9 is started, so that gas enters, if the pressure in the pipeline to be sampled is too small, the air pump 6 is started to extract the gas in the piston cavity 2 to form negative pressure to extract the gas, after the extraction is finished, the first electric control valve 9 is closed, the exhaust pipe 4 is connected with the sampling piece 20, the second electric control valve 10 and the control valve 21 are started, and meanwhile, the air in the piston cavity 2 of the air pump 6 is blown, so that the gas is pushed into the sampling piece 20, and then the control valve 21 is closed.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (7)

1. The utility model provides a gas negative pressure extraction device, includes extraction equipment main part (1), its characterized in that: the utility model provides a pumping equipment main part (1) in be equipped with piston chamber (2), pumping equipment main part (1) top connect be equipped with piston chamber (2) in intercommunication take out extraction pipe (3) and blast pipe (4), piston chamber (2) in connect be equipped with piston board (5), pumping equipment main part (1) in the bottom connect be equipped with aspiration pump (6), aspiration pump (6) connect be equipped with extend to outside aspiration tube (7) and outlet duct (8) with piston chamber (2) in the bottom intercommunication.

2. The gas negative pressure extraction device according to claim 1, wherein: the extraction pipe (3) and the exhaust pipe (4) are respectively connected with a first electric control valve (9) and a second electric control valve (10), and the extraction pipe (7) is connected with a third electric control valve (11).

3. The gas negative pressure extraction device according to claim 1, wherein: the top in piston chamber (2) connect and be equipped with baffle (12), the top in piston chamber (2) be located baffle (12) top and connect and be equipped with pressure sensor (13).

4. The gas negative pressure extraction device according to claim 1, wherein: the extraction equipment main body (1) is internally connected with a controller (14) and a rechargeable storage battery (15).

5. The gas negative pressure extraction device according to claim 4, wherein: the front side of the extraction equipment main body (1) is connected with a display panel (16), a control button (17) and a switch (18), which are electrically connected with the controller (14).

6. The gas negative pressure extraction device according to claim 1, wherein: the top of the extraction pipe (3) and the top of the exhaust pipe (4) are respectively in threaded connection with a pipeline connecting pipe (19) and a sampling piece (20).

7. The gas negative pressure extraction device according to claim 6, wherein: the sampling piece (20) is internally provided with a sampling cavity (22), and the sampling piece (20) is connected with a control valve (21).