Water-oil common cycle cooling device for mining gas drainage pump reducer

Abstract

The invention discloses a water-oil common cycle cooling device for a mining gas drainage pump reducer. The water-oil common cycle cooling device is cyclically connected to the gas drainage pump reducer through an oil outlet pipeline and an oil return pipeline. The cooling device comprises a hydraulic pump, an air cooler and a heat exchanger which are sequentially connected to the oil outlet pipeline. The heat exchanger comprises a heat exchange shell and a heat exchange cavity formed in the heat exchange shell. The heat exchange shell is provided with a water inlet and a water outlet. A heat exchange pipe is further arranged in the heat exchange cavity. One end of the heat exchange pipe is connected with the air cooler, and the other end of the heat exchange pipe is connected with the gas drainage pump reducer through the oil return pipeline. The water inlet and the water outlet of the heat exchanger are connected to a water tank through pipelines, and a water pump is further arranged between the water inlet and the water tank. A water pump explosion-proof motor and a hydraulic pump explosion-proof motor are connected to the water pump and the hydraulic pump correspondingly. According to the water-oil cycle cooling device, air cooling is firstly carried out, then a spiral pipe and cooling water are in full contact for heat exchange, the efficiency is high, reliability is good, adaptability is high, and the cooling effect is good.

Description

technical field [0001] The invention relates to the technical field of a cooling device, in particular to a cooling device suitable for a reducer of a mine gas drainage pump and a common circulation of water and oil. Background technique [0002] During coal mining, gas is easy to accumulate in mine shafts and tunnels. A large amount of gas accumulation has a major safety hazard, threatening the safety of coal mine production and workers, so the gas drainage pump is required to continuously discharge gas. The gas drainage pump generally chooses the water ring pump, which belongs to the variable capacity vacuum pump, and realizes suction, compression and exhaust by changing the volume of the pump chamber. The gas drainage system is mainly composed of a gas drainage pump, an explosion-proof motor, a reducer, a pipeline system and safety devices. Continuous work will generate a lot of heat in the reducer matched with the gas drainage pump, which will affect the operation of t...

AI Technical Summary

Problems solved by technology

The heat exchange device of the reducer of the gas drainage pump is mostly arranged inside the reducer, with limited heat dissipation capacity, and the reducer cannot be cooled in time. If the heat exchange device fails, the reducer box must be disassembled for maintenance and replacement, which is very difficult.

At the same time, the traditional heat dissipation device needs to make a big change to the structure of the reducer to install the heat exchange device, which affects the work of the reducer to a certain extent, and the scope of application is also limited.

Expanding the heat dissipation area of ​​the gas drainage pump reducer is also a common way for the reducer to dissipate heat, but the heat dissipation capacity is limited, and it is not suitable for heavy-duty and high-power reducers, and the application range is not wide enough.

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