Coal mine gas extraction pump energy-saving stable operation regulation and control system and control method thereof

A gas extraction and coal mine gas technology, which is applied to the energy-saving and stable operation regulation system of coal mine gas extraction pump and its control field, can solve the problem of unfavorable application and popularization, and does not consider the influence of gas extraction pump operation stability and energy-saving effect, The operation conditions are complex and changeable, so as to reduce the energy consumption level, improve the stability and optimize the process.

Active Publication Date: 2021-02-09
CHINA UNIV OF MINING & TECH
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AI Technical Summary

Problems solved by technology

[0003] However, this technology still has two deficiencies: (1) The operating conditions of the coal mine gas drainage system are complex and changeable. The optimal parameters of liquid resistance (such as viscosity, liquid supply, etc.) are closely related to the type, speed, negative pressure, coal powder and water quality of the mining area of ​​the gas drainage pump. However, there are no corresponding theories and methods for on-site guidance. The implementation of this technology relies entirely on manual experience to adjust and control, and it is impossible to intelligently adjust the concentration of drag reducing fluid

Method used

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  • Coal mine gas extraction pump energy-saving stable operation regulation and control system and control method thereof
  • Coal mine gas extraction pump energy-saving stable operation regulation and control system and control method thereof
  • Coal mine gas extraction pump energy-saving stable operation regulation and control system and control method thereof

Examples

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Example Embodiment

[0041]Example 1

[0042]Such asFigure 1 to Figure 3As shown, this embodiment provides an energy-saving and stable operation control system for coal mine gas extraction pump, which includes an equipment operation system, a data acquisition system, and an energy-saving control system.

[0043]The equipment operation system includes a gas extraction pump 5, a gas-liquid separator 7, a cooling device 11, a circulation tank 112, an intelligent liquid dispensing filling machine 13, and a liquid supply pump 15. The air inlet of the gas extraction pump 5 Connect the gas intake pipe 1, the discharge port of the gas drainage pump 5 is connected to the inlet of the gas-liquid separator 7, the exhaust port of the gas-liquid separator 7 is connected to the exhaust pipe 8, and the gas-liquid separator 7 The liquid discharge port is connected to the liquid inlet of the cooling device 11, the liquid discharge port of the cooling device 11 is connected to the inlet of the circulating tank 12, and the liqu...

Example Embodiment

[0055]Example 2

[0056]Such asfigure 2 ,Figure 5 ,Image 6 As shown, the difference from Embodiment 1 is that the energy-saving and stable operation control system for coal mine gas extraction pump provided by this embodiment also includes a backup gas drainage pump, a backup cooling device, a backup intelligent liquid distribution filling machine, and a backup liquid supply pump. As well as a diagnosis and stability maintenance system, the diagnosis and stability maintenance system includes a fault diagnosis module, an automatic switching module and an audible and visual alarm module. The output end of the PLC control processor is respectively connected with the fault diagnosis module, the standby equipment automatic switching module and the audible and visual alarm Module connection, the output end of the PLC control processor is respectively connected to the fault diagnosis module, the automatic switching module and the sound and light alarm module, the fault diagnosis module is use...

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Abstract

The invention discloses a coal mine gas extraction pump energy-saving stable operation regulation and control system and a control method thereof. The coal mine gas extraction pump energy-saving stable operation regulation and control system comprises an equipment operation system, a data collection system and an energy-saving control system. The data collection system is used for collecting, displaying and transmitting the shaft power of a gas extraction pump, the extraction negative pressure, the gas flow, the viscosity of anti-drag liquid, the flow, the temperature and the like. The energy-saving control system sequentially regulates the liquid injection amount of an intelligent liquid preparation filling machine from small to large, and the minimum value of the shaft power of the gas pump, the optimal energy-saving viscosity value of the anti-drag liquid and the corresponding liquid supply flow value are sought under the condition that the requirements for gas extraction negative pressure and flow are not changed. The optimal energy-saving rate and the minimum power consumption value of the gas extraction pump are found out from the optimal matching relation between the viscosity of the anti-drag liquid and the liquid supply amount of the gas extraction pump and the extraction negative pressure (the extraction flow), intelligent control over energy-saving stable operation of the gas extraction pump is achieved, and the optimal energy-saving effect of the gas extraction pump can be kept.

Description

technical field [0001] The invention relates to the technical field of coal mine gas drainage, in particular to an energy-saving and stable operation control system and a control method for a coal mine gas drainage pump. Background technique [0002] At present, the optimization of the coal mine gas drainage system in my country mainly focuses on reducing the resistance of the drainage pipe network, improving the drainage process, and regulating the extraction negative pressure and flow rate, while generally ignoring the power source of the gas drainage system—the gas drainage pump. Energy saving and stable operation. There are tens of thousands of gas drainage pumps running continuously in coal mines in my country throughout the year, and the annual power consumption exceeds 20 billion kWh. Its high consumption, low efficiency and operational stability have always been difficult engineering problems to solve. For this reason, technicians in this field have innovatively prop...

Claims

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Application Information

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IPC IPC(8): E21F7/00E21F17/18F04B49/06F04B49/10
CPCE21F7/00E21F17/18F04B49/065F04B49/10
Inventor 张一帆周福宝李金石刘春康建宏颜思量张强强张帝
Owner CHINA UNIV OF MINING & TECH
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