A mine ventilation air methane heat obtaining device and a control method
A technology of mine exhaust air and heat device, which is applied to heat exchange equipment, heat exchanger types, lighting and heating equipment, etc. To achieve the effect of maintaining heat exchange efficiency, efficient heat exchange efficiency, and improving heat exchange effect
Active Publication Date: 2017-11-03
山东诺德能源科技有限公司
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Problems solved by technology
However, there are still deficiencies in the heat extraction method of spraying. First, the lack of wind contains a lot of dust, which can easily cause nozzle blockage after repeated cycles; Insufficient heat exchange
Method used
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[0056] Such as Figure 1-Figure 2 As shown, a mine exhaust air heating device includes an exhaust air channel 1, a water spray filler 2, a flushing water distribution device 3, an exhaust outlet temperature sensor 4, an atomizing spray device 5, and a liquid baffle 6 , Flushing spray water supply pipeline 7, atomization spray water supply pressure sensor 8, atomization spray water supply flow meter 9, atomization spray water supply temperature sensor 10, atomization spray water supply pipeline 11, bypass valve 12, heat pump unit Evaporator 13, automatic backwash filter 14, circulating water pump 15, flushing water pump 16, overflow pipe 17, drainage pipe and canal 18, sedimentation tank 19, water replenishment flow meter 20, water replenishment pipe 21, connecting pipe temperature sensor 22, connecting pipe and canal 23. Water collection tank 24, exhaust air duct temperature sensor 25, liquid level control valve 26.
[0057] The exhaust air duct 1 includes a vertical section ...
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The invention provides a mine ventilation air methane heat obtaining device. A ventilation air methane passage comprises a vertical section and a horizontal section, which are connected with each other; water drenching filler, a washing and water distribution device, an atomizing and sprinkling device, and a liquid baffle are arranged in the vertical sections successively; the washing and water distribution device is connected with a washing water pump via a washing and sprinkling water supply pipe; the washing water pump is connected with settling tanks; the settling tanks are connected with a water collecting tank via a communication pipe trench; the water collecting tank is arranged at the horizontal section; the atomizing and sprinkling device is connected with a heat pump unit evaporator and a bypass valve via an atomizing and sprinkling water supply pipe; the heat pump unit evaporator and the bypass valve are connected with automatic back washing filters; the automatic back washing filters are connected with circulation water pumps which are connected with the settling tanks. The invention also provides a control method for the mine ventilation air methane heat obtaining device. The ventilation air methane heat obtaining and exchange effect is improved; it can be judged whether an atomizing spray nozzle is blocked and whether the water drenching filler is blocked and the atomizing spray nozzle and the water drenching filler can be washed, so that the device has a self-cleaning function and high heat exchange efficiency can be guaranteed.
Description
technical field [0001] The invention belongs to the technical field of waste heat utilization in coal mines, and in particular relates to a mine exhaust air heat extraction device and a control method. Background technique [0002] With the country's control and elimination of small and medium-sized coal-fired boilers, production and domestic heat consumption have gradually become the main problem restricting coal mine safety production. Mine water is a high-quality low-grade heat source. Therefore, in coal mines with abundant mine water, the water source heat pump system can meet the heat consumption problem in the mine area after the coal-fired boiler is shut down. However, for coal mines with no mine water or less mine water, mine exhaust air becomes the only large-capacity waste heat resource. [0003] There have been a lot of researches on extracting waste heat from mine exhaust air for use in mine life and production. In the completed engineering projects, the most ...
Claims
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IPC IPC(8): F28F25/00F28F25/04F28F25/06F28F27/00
CPCF28F25/00F28F25/04F28F25/06F28F27/003F28F2025/005
Inventor 姜培朋
Owner 山东诺德能源科技有限公司