Mining closed-type screw refrigerating compressor

Abstract

The invention discloses a mining closed-type screw refrigerating compressor which comprises a fluorine-prevention voltage-withstand explosion-proof motor, a magnetic coupling and a screw compressor body. The fluorine-prevention voltage-withstand explosion-proof motor and the screw compressor body are connected through the magnetic coupling to realize transmission, and the fluorine-prevention voltage-withstand explosion-proof motor and the shell of the screw compressor body are connected by adopting an end-face static seal structure. The motor and the compressor body are connected in a magnetic mode, the shell is made into a closed flange seal mode, shortcomings that an open-type screw refrigerating compressor is high in leakage and abrasion, none-centering, high in requirements on the running environment and the like are overcome, and the problem that positive voltage type explosion-proof equipment of a semi-closed type screw refrigerating compressor cannot be applied to a mining surface of 0-area of an explosion zone is solved; meanwhile, a motor cooling system is improved, and refrigerating efficiency is improved to the greatest extent under the same refrigeration conditions; the mining closed-type screw refrigerating compressor is safe, efficient, convenient to operate and low in running requirement.

Description

technical field [0001] The invention relates to a compressor, and in particular provides a safe and efficient closed-type screw refrigeration compressor for underground refrigeration systems in the coal mine industry. Background technique [0002] As society's demand for coal increases day by day, people's mining capacity continues to increase, and the mining depth also continues to increase. After entering deep mining, geothermal heat increases, and the problem of heat damage is more serious and restricts coal mine safety production. Therefore, it has become an important topic in the safety production of coal mines in my country to solve the problem of heat damage in mines and study the cooling method of mines. At present, the technology of mine refrigeration and cooling system is becoming more and more mature. Its system mainly includes refrigeration compressor unit, condenser, evaporator, recooler and other parts. Among them, the refrigeration compressor is used for the p...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problem that the motor and the compressor share one main shaft, or the two main shafts of the motor and the compressor are connected by a coupling, the coaxiality cannot be guaranteed and the transmission vibration is caused, the invention uses a magnetic connection to connect the motor and the compressor , creating a precedent for the magnetic connection between the motor and the compressor

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