CN218971274U

CN218971274U - Switchable gas extraction system

Info

Publication number: CN218971274U
Application number: CN202320159654.3U
Authority: CN
Inventors: 李朝; 孙京; 郭建忠; 周文斌; 吴彬; 赵东方; 付树平; 代培; 马明凯
Original assignee: Huaneng Yunnan Diandong Energy Co Ltd
Current assignee: Huaneng Yunnan Diandong Energy Co Ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-05-05
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a switchable gas extraction system, which relates to the technical field of gas extraction, and aims at solving the problems that the gas extraction working face gas extraction working problem of service is influenced by only stopping the pipeline when an extraction pump connected in one pipeline needs to be overhauled because no connecting device is arranged between the pipelines and the pipelines independently operates, and the switchable gas extraction system comprises two extraction mechanisms, wherein connecting plates are arranged on the outer walls of the two opposite sides of the two extraction mechanisms. According to the utility model, through the two extraction mechanisms, gas extraction can be simultaneously carried out, when the extraction pump in one extraction mechanism needs to be overhauled, the gas extracted in the extraction mechanism can be guided into the other extraction mechanism through the connecting pipe, the gas extraction is not influenced, the extraction pump in the extraction mechanism also needs to be overhauled, and meanwhile, the extraction mechanism also has a gas leakage alarm function, so that the safety production is effectively improved.

Description

Switchable gas extraction system

Technical Field

The utility model relates to the technical field of gas extraction, in particular to a switchable gas extraction system.

Background

There is gas extraction pipeline in the pit of the colliery, there is not connecting device, each pipeline between, mutually independent operation, when the extraction pump of one of them pipeline internal connection need overhaul, only let this pipeline stop operation, will influence the mining working face gas extraction work of its service.

Therefore, a switchable gas extraction system needs to be designed, and the extraction of gas is not delayed in the overhaul process of an extraction pump connected in one pipeline.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a switchable gas extraction system, two extraction mechanisms are arranged to be capable of independently operating and being capable of operating in a connecting way, the defects of the prior art are overcome, the problems that the existing gas extraction pipelines are free of connecting devices and independently operate each other are effectively solved, and when an extraction pump connected in one pipeline needs to be overhauled, only the pipeline is stopped to operate, so that the gas extraction working problem of the mining working face of the service is influenced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a switchable gas drainage system, includes two drainage mechanisms, two the outer wall of the relative one side of drainage mechanism is equipped with the connecting plate, the controller is installed to connecting plate bottom outer wall, two drainage mechanisms passes through the connecting pipe and connects, install first solenoid valve on the connecting pipe, drainage mechanism includes the box, install the drainage pump in the box, the drainage pump inlet end is connected with the intake pipe, the drainage pump outlet end is connected with the outlet duct, gas sensor is installed to box top inner wall, the siren is installed to box top outer wall.

Through the scheme, through the two extraction mechanisms that set up, can carry out the extraction of gas simultaneously, when the extraction pump in one of them extraction mechanism needs to overhaul, the accessible connecting pipe is with in the gas that draws in this extraction mechanism is leading-in another extraction mechanism, when not influencing the gas extraction, still can need overhaul the extraction pump in this extraction mechanism, set up the box in the extraction mechanism simultaneously and can play the guard action to the extraction pump, the junction of extraction pump and intake pipe and outlet duct takes place to leak easily, the gas of leaking can diffuse in the box, can detect the gas content in the box through the gas sensor that sets up, when the junction of extraction pump and intake pipe and outlet duct takes place to leak, gas sensor detectable gas, and give the controller with signal transmission, but the automatic control alarm of controller sends the alarm, remind people to overhaul in time.

Preferably, a second electromagnetic valve is installed on the air inlet pipe.

Through the scheme, the opening or closing of the pipeline in the air inlet pipe can be controlled.

Preferably, the inner wall of one side of the box body is connected with an air inlet pipe, a third electromagnetic valve is arranged on the air inlet pipe, and an electric fan is arranged in the air inlet pipe.

Through the scheme, when leakage occurs at the joint of the extraction pump, the air inlet pipe and the air outlet pipe, and when the box body needs to be overhauled, the electric fan can be started in advance to ventilate the box body, leaked gas is discharged from the box body, and the influence on the health of maintenance personnel is avoided.

Preferably, the inner wall of the other side of the box body is connected with an air outlet pipe, and a fourth electromagnetic valve is arranged on the air outlet pipe.

Through the scheme, when the electric fan blows, air flow can be discharged from the air outlet pipe to ventilate and disperse gas.

Preferably, the outer wall of one side of the box body is provided with a mounting opening, and the inner wall of the mounting opening is hinged with a door plate.

Through the scheme, the door plate can be opened to enter the box body to overhaul the extraction pump.

Preferably, the outer wall of the door plate is connected with the inner wall of the mounting opening through a sealing strip, and a lock is mounted on the door plate.

By the scheme, the tightness of the door plate can be ensured.

Preferably, the first electromagnetic valve, the extraction pump, the gas sensor, the alarm, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are all connected with the controller through signal wires, and the controller is connected with an external power supply through a power wire.

Through the scheme, the first electromagnetic valve, the extraction pump, the gas sensor, the alarm, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve can be controlled through the controller.

The beneficial effects of the utility model are as follows:

1. through the two extraction mechanisms, gas extraction can be performed simultaneously, when the extraction pump in one extraction mechanism needs to be overhauled, the gas extracted in the extraction mechanism can be guided into the other extraction mechanism through the connecting pipe, and the extraction pump in the extraction mechanism can be overhauled while gas extraction is not influenced;

2. the gas sensor can detect the gas content in the box body, when the junction of the extraction pump, the air inlet pipe and the air outlet pipe leaks, the gas sensor can detect the gas and transmit signals to the controller, and the controller can automatically control the alarm to give out an alarm to remind people of timely maintenance.

Drawings

FIG. 1 is a perspective view of a switchable gas drainage system according to the present utility model;

FIG. 2 is a perspective cross-sectional view of a switchable gas drainage system according to the present utility model;

FIG. 3 is a first perspective view of a switchable gas drainage system according to the present utility model;

fig. 4 is a second perspective view of a switchable gas drainage system according to the present utility model.

In the figure: 1. a connecting plate; 2. a controller; 3. a connecting pipe; 4. a first electromagnetic valve; 5. a case; 6. a pump; 7. an air inlet pipe; 8. an air outlet pipe; 9. a gas sensor; 10. an alarm; 11. a second electromagnetic valve; 12. an air inlet pipe; 13. a third electromagnetic valve; 14. an electric fan; 15. an air outlet pipe; 16. a fourth electromagnetic valve; 17. and (5) a door plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a switchable gas extraction system comprises two extraction mechanisms, wherein a connecting plate 1 is arranged on the outer wall of one side opposite to the two extraction mechanisms, a controller 2 is arranged on the outer wall of the bottom of the connecting plate 1, a first electromagnetic valve 4, an extraction pump 6, a gas sensor 9, an alarm 10, a second electromagnetic valve 11, a third electromagnetic valve 13 and a fourth electromagnetic valve 16 are all connected with the controller 2 through signal lines, the controller 2 is connected with an external power supply through a power line, and the controller 2 can control the first electromagnetic valve 4, the extraction pump 6, the gas sensor 9, the alarm 10, the second electromagnetic valve 11, the third electromagnetic valve 13 and the fourth electromagnetic valve 16;

the two extraction mechanisms are connected through the connecting pipe 3, the first electromagnetic valve 4 is installed on the connecting pipe 3, the extraction mechanism comprises a box body 5, an air inlet pipe 12 is connected to the inner wall of one side of the box body 5, a third electromagnetic valve 13 is installed on the air inlet pipe 12, an electric fan 14 is installed in the air inlet pipe 12, when leakage occurs at the joint of the extraction pump 6, the air inlet pipe 7 and the air outlet pipe 8, and when the air needs to enter the box body 5 for maintenance, the electric fan 14 can be started in advance to ventilate the box body 5, leaked gas is discharged from the box body 5, the influence on the health of maintenance personnel is avoided, an air outlet pipe 15 is connected to the inner wall of the other side of the box body 5, a fourth electromagnetic valve 16 is installed on the air outlet pipe 15, and when the electric fan 14 blows, air flow can be discharged from the air outlet pipe 15 for ventilation and gas dispersion;

the outer wall of one side of the box body 5 is provided with a mounting opening, the inner wall of the mounting opening is hinged with a door plate 17, the door plate 17 can be opened to enter the box body 5 to overhaul the extraction pump 6, the outer wall of the door plate 17 is connected with the inner wall of the mounting opening through a sealing strip, a lock is arranged on the door plate 17, the tightness of the door plate 17 can be ensured, the extraction pump 6 is arranged in the box body 5, the air inlet end of the extraction pump 6 is connected with an air inlet pipe 7, a second electromagnetic valve 11 is arranged on the air inlet pipe 7, and the opening or closing of a pipeline in the air inlet pipe 7 can be controlled;

the gas outlet end of the extraction pump 6 is connected with the gas outlet pipe 8, the gas sensor 9 is installed on the inner wall of the top of the box 5, the alarm 10 is installed on the outer wall of the top of the box 5, gas extraction can be carried out simultaneously through the two extraction mechanisms, when the extraction pump 6 in one of the extraction mechanisms needs to be overhauled, the gas extracted in the extraction mechanism is led into the other extraction mechanism through the connecting pipe 3, the gas extraction mechanism is not influenced, the extraction pump 6 in the extraction mechanism can be overhauled, the box 5 is arranged in the extraction mechanism to protect the extraction pump 6, leakage can be easily caused at the joint of the extraction pump 6, the gas inlet pipe 7 and the gas outlet pipe 8, the leaked gas can permeate the box 5, the gas content in the box 5 can be detected through the gas sensor 9, when the joint of the extraction pump 6, the gas inlet pipe 7 and the gas outlet pipe 8 leaks, the gas sensor 9 can detect the gas, and transmit signals to the controller 2, and the controller 2 can automatically control the alarm 10 to send out timely for overhauling.

Working principle: through the two extraction mechanisms, gas extraction can be performed simultaneously (the extraction pump 6 extracts the gas from the underground coal mine through the gas inlet pipe 7 and externally conveys the gas through the gas outlet pipe 8), when the extraction pump 6 in one extraction mechanism needs to be overhauled, the controller 2 can be used for closing the second electromagnetic valve 11 on the gas inlet pipe 7 in the extraction mechanism and opening the first electromagnetic valve 4 on the connecting pipe 3, so that the gas extracted in the extraction mechanism is led into the other extraction mechanism, and the extraction pump 6 in the extraction mechanism can be overhauled while the gas extraction is not influenced;

meanwhile, the box body 5 is arranged in the extraction mechanism, so that the extraction pump 6 can be protected, leakage is easy to occur at the joint of the extraction pump 6, the air inlet pipe 7 and the air outlet pipe 8, leaked gas can permeate into the box body 5, the content of the gas in the box body 5 can be detected through the gas sensor 9, when leakage occurs at the joint of the extraction pump 6, the air inlet pipe 7 and the air outlet pipe 8, the gas sensor 9 can detect the gas, signals are transmitted to the controller 2, the controller 2 can automatically control the alarm 10 to give out an alarm, and people are reminded of timely maintenance.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a switchable gas drainage system, includes two drainage mechanisms, its characterized in that, two drainage mechanism is relative one side outer wall is equipped with connecting plate (1), controller (2) are installed to connecting plate (1) bottom outer wall, two drainage mechanism passes through connecting pipe (3) and connects, install first solenoid valve (4) on connecting pipe (3), drainage mechanism includes box (5), install drainage pump (6) in box (5), drainage pump (6) inlet end is connected with intake pipe (7), drainage pump (6) outlet end is connected with outlet duct (8), gas sensor (9) are installed to box (5) top inner wall, alarm (10) are installed to box (5) top outer wall.

2. A switchable gas extraction system according to claim 1, characterized in that the inlet pipe (7) is provided with a second solenoid valve (11).

3. The switchable gas extraction system according to claim 2, wherein an air inlet pipe (12) is connected to an inner wall of one side of the box body (5), a third electromagnetic valve (13) is installed on the air inlet pipe (12), and an electric fan (14) is installed in the air inlet pipe (12).

4. A switchable gas extraction system according to claim 3, characterized in that the inner wall of the other side of the tank (5) is connected with an air outlet pipe (15), and a fourth electromagnetic valve (16) is mounted on the air outlet pipe (15).

5. The switchable gas extraction system according to claim 1, wherein the outer wall of one side of the tank (5) is provided with a mounting opening, and the inner wall of the mounting opening is hinged with a door plate (17).

6. The switchable gas extraction system according to claim 5, wherein the outer wall of the door panel (17) is connected to the inner wall of the mounting opening by means of a sealing strip, and a lock is mounted on the door panel (17).

7. The switchable gas extraction system according to claim 4, wherein the first solenoid valve (4), the extraction pump (6), the gas sensor (9), the alarm (10), the second solenoid valve (11), the third solenoid valve (13) and the fourth solenoid valve (16) are all connected with the controller (2) through signal lines, and the controller (2) is connected with an external power supply through power lines.