CN215332977U - Gas control system - Google Patents
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- CN215332977U CN215332977U CN202120465846.8U CN202120465846U CN215332977U CN 215332977 U CN215332977 U CN 215332977U CN 202120465846 U CN202120465846 U CN 202120465846U CN 215332977 U CN215332977 U CN 215332977U
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Abstract
The utility model belongs to the technical field of underground coal mine equipment, and particularly relates to a gas control system. The gas control system comprises a gas system and a water circulation system, wherein the gas system comprises a gas transmission pipeline and two gas drainage pumps, and a gas inlet and a gas outlet of each gas drainage pump are respectively connected with the gas transmission pipeline through a drainage valve; the gas systems are divided into two groups, and the two groups of gas systems share the same water circulation system. Each gas drainage pump is correspondingly connected with the underground pump set controller, a water inlet valve and a drainage valve corresponding to each gas drainage pump are respectively connected with the corresponding underground pump set controller, and the four underground pump set controllers are respectively connected with the local console. According to the utility model, two groups of gas systems share the same water circulation system, so that the purposes of independently pumping and discharging gas and switching the working modes can be realized, and the gas can be stably and continuously pumped and discharged on the premise of saving the cost in the gas pumping and discharging work of an underground coal mine.
Description
Technical Field
The utility model belongs to the technical field of underground coal mine equipment, and particularly relates to a gas control system.
Background
Coal mine resources in China are generally buried deeply, underground mining is mainly used, and coal mine gas, namely coal mine gas, can be generated in the coal mine mining process. The main component of the coal bed gas is methane, and when the concentration of the methane in the air reaches 5% -16%, the methane can explode when meeting open fire, which is the root of coal mine gas explosion accidents.
The gas poses serious threat to coal mines, pre-extraction is carried out, the danger of the coal mines can be reduced, the gas extraction amount of the coal mines in the whole country is huge, at least 2/3 is coal mine low-concentration gas with the methane concentration lower than 30%, the gas is not utilized, a large amount of energy is wasted, the explosion limit range of the gas under normal temperature and normal pressure is 5% -15%, an engine drives a generator to generate power by using the energy generated by gas explosion, the low-concentration gas is conveyed and has certain explosion danger, and pipeline explosion can be transmitted to a gas conveying end and a gas using end, so that a certain potential safety hazard is caused, and a low-concentration gas safety conveying guarantee system needs to be developed.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to the above technical problem, and an object of the present invention is to provide a gas control system.
The gas control system comprises a gas system and a water circulation system, wherein the gas system comprises a gas transmission pipeline and two gas drainage pumps for draining gas in the gas transmission pipeline, and a gas inlet and a gas outlet of each gas drainage pump are respectively connected with the gas transmission pipeline through a drainage valve;
the gas extraction system comprises two groups of gas systems, wherein the two groups of gas systems share the same water circulation system, the water circulation system comprises a cold water tank and a hot water tank, a water inlet of the gas extraction pump is communicated with the cold water tank through a water inlet valve through a pipeline, and a water outlet of the gas extraction pump is communicated with the hot water tank through a pipeline;
each gas drainage pump is correspondingly connected with an underground pump group controller, the water inlet valve and the drainage valve corresponding to each gas drainage pump are respectively connected with the corresponding underground pump group controllers, and the four underground pump group controllers are respectively connected with a local console.
The utility model sets two groups of gas systems on the basis of the original gas system, and two gas drainage pumps are arranged in each group of gas system, and the four gas drainage pumps are independently controlled by the underground pump group controller respectively, so that the four gas drainage pumps can independently work, and once any one of the gas drainage pumps stops working, the other gas drainage pump in the same gas system can continue to perform gas drainage work. When any gas system stops working, the other group of gas systems can work. After the design is ingenious, the purpose of gas drainage under the coal mine can be kept in real time under the condition of maintaining equipment.
The gas drainage pump includes the motor, with pump body, four temperature sensor, four that the motor is connected temperature sensor is respectively for being used for detecting motor surface temperature's motor surface temperature sensor, be used for detecting motor rotor temperature's motor rotor temperature sensor, be used for detecting pump body front axle temperature's pump front axle temperature sensor, be used for detecting pump body rear axle temperature's pump rear axle temperature sensor, four temperature sensor's signal output part connects respectively the gas drainage pump corresponds with pump unit controller in the pit. Set up a plurality of temperature sensor respectively to the gas drainage pump so that monitor the temperature information of its during operation, in case when each monitoring temperature of arbitrary gas drainage pump is higher than predetermined temperature threshold value, the accessible is controlled the platform on the spot and is switched two gas drainage pumps independent each other, guarantees real-time work of drawing gas.
The gas drainage pump comprises a vertical vibration sensor and a horizontal vibration sensor, the vertical vibration sensor is arranged at the bottom of the pump body, and the horizontal vibration sensor is arranged on the side wall of the pump body;
and the signal output end of the vertical vibration sensor and the signal output end of the horizontal vibration sensor are respectively connected with the underground pump group controller corresponding to the gas drainage pump. When the vibration of the bottom or the side wall of the pump body of the gas drainage pump is larger than a preset vibration threshold value, the pump body is considered to work abnormally, and at the moment, the gas drainage pump can be controlled to stop running, switch running or reduce running power and other modes through the local console.
The gas drainage pump is characterized in that a water inlet temperature sensor is arranged at a water inlet of the gas drainage pump, a water outlet temperature sensor is arranged at a water outlet of the gas drainage pump, and a signal output end of the water inlet temperature sensor and a signal output end of the water outlet temperature sensor are respectively connected with the gas drainage pump corresponding to the underground pump group controller. When the temperature of the water inlet and the water outlet of the gas drainage pump is higher than the preset temperature threshold value, the gas drainage pump is considered to be abnormal in work, and at the moment, the modes of stopping running, switching running or reducing running power and the like of the gas drainage pump can be controlled through the local console.
The gas drainage pump is characterized in that a negative pressure sensor is arranged at an air inlet of the gas drainage pump, a positive pressure sensor is arranged at an air outlet of the gas drainage pump, and a signal output end of the negative pressure sensor is connected with a signal output end of the positive pressure sensor respectively. When the pressure of the gas inlet and the gas outlet of the gas drainage pump is abnormal, the gas drainage pump is considered to be abnormal in work, and at the moment, the gas drainage pump can be controlled to stop running, switch running or reduce running power and other modes through the local console.
The underground pump room controller is characterized by further comprising an underground pump room controller arranged in a coal mine, a water level sensor and a temperature sensor are arranged in the cold water tank and the hot water tank respectively, a signal output end of the water level sensor and a signal output end of the temperature sensor are connected with the underground pump room controller respectively, and the underground pump room controller is connected with the local console.
The gas drainage system is characterized by further comprising a water pump, the water inlet valve corresponding to the gas drainage pump is communicated with the cold water tank through a water pump pipeline, and the control end of the water pump is connected with the underground pump room controller.
Still including the environment gas sensor who is used for detecting pump house gas concentration, be used for detecting pump house ambient temperature's ambient temperature inductor, be used for detecting the pipeline carbon monoxide concentration sensor of carbon monoxide in the gas transmission pipeline with be used for detecting the pipeline methane sensor of methane concentration in the gas transmission pipeline, environment gas sensor the ambient temperature sensor pipeline carbon monoxide concentration sensor with pipeline methane sensor connects respectively with pump house controller in the pit.
The underground pump group controller and the underground pump room controller are respectively in signal connection with the local console in an RS485 or wireless mode;
the local console is connected with the underground switch in a wired mode, and the underground switch is connected with the ground switch in a wired mode.
The underground pump set controller and the underground pump room controller both comprise a microprocessor and a power supply module, the microprocessor is respectively connected with a communication module, a sensor acquisition module, a liquid crystal display and a switching value acquisition module, and the power supply output end of the power supply module is respectively connected with the microprocessor, the sensor acquisition module and the switching value acquisition module; the microprocessor adopts a singlechip, and the communication module is the RS485 communication module or the wireless communication module.
Has the advantages that: according to the utility model, two groups of gas systems share the same water circulation system, so that the purposes of independently pumping and discharging gas and switching the working modes can be realized, and the gas can be stably and continuously pumped and discharged on the premise of saving the cost in the gas pumping and discharging work of an underground coal mine.
Drawings
FIG. 1 is a schematic view of an integral joint according to the present invention;
FIG. 2 is a communication diagram of the present invention;
fig. 3 is a diagram of an internal logic connection of a downhole pump bank controller or a downhole pump house controller according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific drawings.
Referring to fig. 1 to 3, the gas control system includes two gas systems and a water circulation system, and the two gas systems share the same water circulation system. Each group of gas system comprises a gas transmission pipeline 1 and two gas drainage pumps 2 for draining gas in the gas transmission pipeline 1, wherein the gas inlet and the gas outlet of each gas drainage pump 2 are respectively connected with the gas transmission pipeline 1 through a drainage valve 21.
Each gas drainage pump 2 is correspondingly connected with a downhole pump group controller 3, a water inlet valve 22 and a drainage valve 21 corresponding to each gas drainage pump 2 are respectively connected with the corresponding downhole pump group controller 3, and the four downhole pump group controllers 3 are respectively connected with a local console 5.
The gas drainage pump 2 comprises a motor, a pump body connected with the motor, and four temperature sensors, wherein the four temperature sensors are respectively a motor surface temperature sensor for detecting the surface temperature of the motor, a motor rotor temperature sensor for detecting the temperature of a motor rotor, a pump front shaft temperature sensor for detecting the temperature of a pump front shaft, and a pump rear shaft temperature sensor for detecting the temperature of a pump rear shaft, and the signal output ends of the four temperature sensors are respectively connected with the underground pump group controller 3 corresponding to the gas drainage pump 2. Set up a plurality of temperature sensor respectively to gas drainage pump 2 so that monitor the temperature information of its during operation, in case when each monitoring temperature of arbitrary gas drainage pump 2 is higher than predetermined temperature threshold, accessible local control platform 5 switches two gas drainage pumps 2 of mutual independence, guarantees real-time work of drawing out gas.
The gas drainage pump 2 comprises a vertical vibration sensor and a horizontal vibration sensor, the vertical vibration sensor is arranged at the bottom of the pump body, and the horizontal vibration sensor is arranged on the side wall of the pump body; the signal output end of the vertical vibration sensor and the signal output end of the horizontal vibration sensor are respectively connected with the underground pump group controller 3 corresponding to the gas drainage pump 2. When the vibration of the bottom or the side wall of the pump body of the gas drainage pump 2 is larger than a preset vibration threshold value, the pump body is considered to work abnormally, and at the moment, the local control console 5 can be used for controlling the gas drainage pump 2 to stop running, switch running or reduce running power and other modes.
And a water inlet temperature sensor is arranged at the water inlet of the gas drainage pump 2, a water outlet temperature sensor is arranged at the water outlet of the gas drainage pump 2, and the signal output end of the water inlet temperature sensor and the signal output end of the water outlet temperature sensor are respectively connected with the underground pump group controller 3 corresponding to the gas drainage pump 2. When the temperature of the water inlet and the water outlet of the gas drainage pump 2 is higher than the preset temperature threshold value, the gas drainage pump 2 is considered to work abnormally, and at the moment, the local control console 5 can be used for controlling the gas drainage pump 2 to stop running, switch running or reduce running power and other modes.
A negative pressure sensor is arranged at the air inlet of the gas drainage pump 2, a positive pressure sensor is arranged at the air outlet of the gas drainage pump 2, and the signal output end of the negative pressure sensor and the signal output end of the positive pressure sensor are respectively connected with the underground pump set controller 3 corresponding to the gas drainage pump 2. When the pressure of the gas inlet and the gas outlet of the gas drainage pump 2 is abnormal, the gas drainage pump 2 is considered to be abnormal in work, and at the moment, the local control console 5 can control the gas drainage pump 2 to stop running, switch running or reduce running power and other modes.
The water circulation system comprises a cold water tank 61 and a hot water tank 62, the water inlet of the gas drainage pump 2 is communicated with the cold water tank 61 through a water inlet valve 22 through a pipeline, and the water outlet of the gas drainage pump 2 is communicated with the hot water tank 62 through a pipeline. The hot water tank 62 can communicate with the cold water tank 61 after heat exchange through a heat exchanger, so as to realize water circulation.
The underground pump room control system is characterized by further comprising a pump room controller 4 arranged underground in the coal mine, a water level sensor and a temperature sensor are arranged in the cold water tank 61 and the hot water tank 62 respectively, a signal output end of the water level sensor and a signal output end of the temperature sensor are connected with the pump room controller 4 used underground respectively, and the pump room controller 4 used underground is connected with the local control console 5. The gas drainage system further comprises a water pump, a water inlet valve 22 corresponding to the gas drainage pump 2 is communicated with the cold water tank 61 through a water pump through a pipeline, and the control end of the water pump is connected with the underground pump room controller 4. Because gas drainage pump 2 sets up a plurality ofly, if gas drainage pump 2 and cold water storage cistern 61's position when far away, can set up two water pumps, two water pumps set up side by side, can be simultaneously or arbitrary be a plurality of gas drainage pump 2 water supplies.
Still including the environment gas sensor that is used for detecting pump house gas concentration, the ambient temperature inductor that is used for detecting pump house ambient temperature, the pipeline carbon monoxide concentration sensor that is used for detecting carbon monoxide in the gas transmission pipeline 1 and the pipeline methane sensor that is used for detecting methane concentration in the gas transmission pipeline 1, environment gas sensor, ambient temperature inductor, pipeline carbon monoxide concentration sensor and pipeline methane sensor connect pump house controller 4 with in the pit respectively.
The utility model sets two groups of gas systems on the basis of the original gas system, and two gas drainage pumps 2 are arranged in each group of gas system, and four gas drainage pumps 2 are independently controlled by adopting the underground pump group controller 3 respectively, so that the independent work of the four gas drainage pumps 2 is realized, and once any one gas drainage pump 2 stops working, the other gas drainage pump 2 in the same gas system can continue to perform gas drainage work. When any gas system stops working, the other group of gas systems can work. After the design is ingenious, the purpose of gas drainage under the coal mine can be kept in real time under the condition of maintaining equipment.
Referring to fig. 2, the underground pump group controller 3 and the underground pump room controller 4 are respectively in signal connection with the local console 5 in an RS485 or wireless mode; the local control station 5 is connected to the downhole switch 7 by wire, and the downhole switch 7 is connected to the surface switch 8 by wire.
Referring to fig. 3, each of the downhole pump group controller 3 and the downhole pump room controller 4 includes a microprocessor 91 and a power module 92, the microprocessor 91 is respectively connected to a communication module 93, a sensor acquisition module 94, a liquid crystal display 95 and a switching value acquisition module 96, and a power output end of the power module 92 is respectively connected to the microprocessor 91, the sensor acquisition module 94 and the switching value acquisition module 96; the microprocessor 91 adopts a single chip microcomputer, and the communication module 93 is an RS485 communication module or a wireless communication module. In addition, the local control console 4 can adopt a centralized control console used in the underground coal mine in the prior art. The alarm device further comprises an alarm device, and the control end of the alarm device is connected with the centralized control console. The local abnormity warning function can be realized through the alarm.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A gas control system comprises a gas system and a water circulation system, and is characterized in that the gas system comprises a gas transmission pipeline and two gas drainage pumps for draining gas in the gas transmission pipeline, wherein a gas inlet and a gas outlet of each gas drainage pump are respectively connected with the gas transmission pipeline through a drainage valve;
the gas extraction system comprises two groups of gas systems, wherein the two groups of gas systems share the same water circulation system, the water circulation system comprises a cold water tank and a hot water tank, a water inlet of the gas extraction pump is communicated with the cold water tank through a water inlet valve through a pipeline, and a water outlet of the gas extraction pump is communicated with the hot water tank through a pipeline;
each gas drainage pump is correspondingly connected with an underground pump group controller, the water inlet valve and the drainage valve corresponding to each gas drainage pump are respectively connected with the corresponding underground pump group controllers, and the four underground pump group controllers are respectively connected with a local console.
2. The gas control system according to claim 1, wherein the gas drainage pump comprises a motor, a pump body connected to the motor, and four temperature sensors, the four temperature sensors are respectively a motor surface temperature sensor for detecting a surface temperature of the motor, a motor rotor temperature sensor for detecting a temperature of a rotor of the motor, a pump front shaft temperature sensor for detecting a front shaft temperature of the pump body, and a pump rear shaft temperature sensor for detecting a rear shaft temperature of the pump body, and signal output ends of the four temperature sensors are respectively connected to the downhole pump group controller corresponding to the gas drainage pump.
3. The gas control system of claim 2, wherein the gas drainage pump comprises a vertical vibration sensor and a horizontal vibration sensor, the vertical vibration sensor being disposed at the bottom of the pump body, the horizontal vibration sensor being disposed on a side wall of the pump body;
and the signal output end of the vertical vibration sensor and the signal output end of the horizontal vibration sensor are respectively connected with the underground pump group controller corresponding to the gas drainage pump.
4. The gas control system according to claim 1, wherein a water inlet temperature sensor is disposed at a water inlet of the gas drainage pump, a water outlet temperature sensor is disposed at a water outlet of the gas drainage pump, and a signal output end of the water inlet temperature sensor and a signal output end of the water outlet temperature sensor are respectively connected to the downhole pump set controller corresponding to the gas drainage pump.
5. The gas control system according to claim 1, wherein a negative pressure sensor is disposed at an air inlet of the gas drainage pump, a positive pressure sensor is disposed at an air outlet of the gas drainage pump, and a signal output end of the negative pressure sensor and a signal output end of the positive pressure sensor are respectively connected to the downhole pump set controller corresponding to the gas drainage pump.
6. A gas control system as claimed in any one of claims 1 to 5, further comprising a pump room controller for underground use disposed in a coal mine, wherein a water level sensor and a temperature sensor are disposed in the cold water tank and the hot water tank, respectively, a signal output terminal of the water level sensor and a signal output terminal of the temperature sensor are connected to the pump room controller for underground use, respectively, and the pump room controller for underground use is connected to the local console.
7. The gas control system according to claim 6, further comprising a water pump, wherein the water inlet valve corresponding to the gas drainage pump is communicated with the cold water tank through a pipeline through the water pump, and a control end of the water pump is connected with the underground pump room controller.
8. The gas control system of claim 6, further comprising an ambient gas sensor for detecting a gas concentration in the pump house, an ambient temperature sensor for detecting an ambient temperature in the pump house, a pipeline carbon monoxide concentration sensor for detecting carbon monoxide in the gas pipeline, and a pipeline methane sensor for detecting a methane concentration in the gas pipeline, wherein the ambient gas sensor, the ambient temperature sensor, the pipeline carbon monoxide concentration sensor, and the pipeline methane sensor are respectively connected to the downhole pump house controller.
9. A gas control system as defined in claim 6, wherein the downhole pump bank controller and the downhole pump house controller are respectively in RS485 or wireless signal connection with the local console;
the local console is connected with the underground switch in a wired mode, and the underground switch is connected with the ground switch in a wired mode.
10. A gas control system as claimed in claim 6, wherein the downhole pump set controller and the downhole pump room controller each comprise a microprocessor and a power supply module, the microprocessor is respectively connected with a communication module, a sensor acquisition module, a liquid crystal display and a switching value acquisition module, and the power supply output end of the power supply module is respectively connected with the microprocessor, the sensor acquisition module and the switching value acquisition module; the microprocessor adopts a singlechip, and the communication module is an RS485 communication module or a wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120465846.8U CN215332977U (en) | 2021-03-04 | 2021-03-04 | Gas control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120465846.8U CN215332977U (en) | 2021-03-04 | 2021-03-04 | Gas control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215332977U true CN215332977U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120465846.8U Active CN215332977U (en) | 2021-03-04 | 2021-03-04 | Gas control system |
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| CN (1) | CN215332977U (en) |
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2021
- 2021-03-04 CN CN202120465846.8U patent/CN215332977U/en active Active
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