Underground refrigerating and cooling device for coal mine

Abstract

The invention discloses an underground refrigerating and cooling device for a coal mine, comprising a compressor, a condenser, an evaporator, a control system, a soft starter and a connecting line cavity, wherein a high pressure end and a low pressure end of the compressor are respectively connected with a pressure gauge; the compressor is connected with a liquid-injection solenoid valve by a motor protection refrigerating fluid injection hole and a bearing protection refrigerating fluid injection hole; and a cooling water inlet and a cooling water outlet of the condenser are respectively provided with a temperature sensor. The device of the invention has the advantages that a PLC, a sensor, a solenoid valve and other components of the control system are used for monitoring and controlling a plurality of parameters of equipment so as to master running conditions of the system in real time, revise and set parameters of the unit in accordance with changes of service environment, and have easy and flexible use; the soft starter can play an effective protective role in the compressor and a power grid; besides, the device of the invention adopts a semi-closed screw compressor which hasthe advantages of power conservation, low possibility of being influenced by environment, no leakage of the refrigerating fluid, high energy efficiency ratio and the like compared with the open-type compressor or the piston-type compressor.

Description

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AI Technical Summary

Benefits of technology

This patented technology improves upon previous methods by providing real-time knowledge on how well it works over long periods without losing its performance due to factors like vibrations caused during transportation from one location to another. It also includes various features such as improved protection against damage from external elements (humidity) and longer lifespan compared to traditional systems. Additionally, this design allows for easy replacement if needed when necessary based on changing environments where the machine operates. Overall, these technical improvements make up an efficient way to manage underground coke mines while maintain their safety and reliability.

Problems solved by technology

This technical problem addressed by this patents relates to improving the safety and performance of coal mines while minimizing thermal damages caused by overexposure to excessive levels of external heat (IH). Existing solutions involve adding extra components like fans and other machines to improve ventilation systems, reducing operating costs and prevention measures against fire risk. Current solution involves developing full-set industrial machinery based on advanced materials and processes, rather than individualized ones.

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