Ventilation and refrigeration system provided with high-pressure and low-pressure water replenishing device

Abstract

The invention provides a ventilation and refrigeration system provided with a high-low pressure water replenishing device, which is characterized in that the high-low pressure water replenishing device comprises a normal pressure water replenishing tank, a water filtering and purifying device, a low pressure end flow control valve, a low pressure water pump, a water pressure early warning system, a pressure sensor, a transition water replenishing tank, a water level monitoring system, a liquid pressurizing device and a high pressure end flow control valve, a high-pressure water pump. The normal-pressure water replenishing tank is connected with the transition water replenishing tank through a pipeline, and a water filtering and purifying device, a low-pressure flow control valve and a low-pressure water pump are sequentially arranged between the normal-pressure water replenishing tank and the transition water replenishing pipeline. The transition water supplementing tank is connected with the high-pressure water pump through a pipeline, and the high-pressure flow control valve and the high-pressure water pump are sequentially arranged in the middle of the pipeline where the transition water supplementing tank is connected with the high-pressure water pump. The high-pressure water pump is connected with a mine cooling loop. The water replenishing requirement can be met, meanwhile, the water pump is prevented from directly feeding normal-pressure water into a high-pressure environment, the power consumption of the pump is reduced, the service life of the pump is prolonged, the accident rate is reduced, and the stability of the system is improved.

Description

technical field [0001] The invention relates to the field of deep metal mine stope cooling technology, and specifically designs a deep metal mine stope ventilation and cooling system using return air, which can effectively reduce the ambient temperature in the mine, reduce the high-pressure heat exchange equipment of the above-ground refrigeration system, and improve the system temperature. safety and stability. Background technique [0002] In the process of deep mine mining, the problem of deterioration of underground thermal environment is very prominent. As the mining depth of the mine increases, after entering the deep part, the working face of the mine begins to be affected by high temperature, which not only restricts the safe production and construction of the mine, but also threatens the health of the miners. my country's "Safety Regulations for Metal and Nonmetal Mine" stipulates that the air temperature of the mining face of the production mine shall not exceed 2...

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Problems solved by technology

[0010] In view of this, the technical problems to be solved by the present invention are 1) the difficulty of water supply and water pollution in the traditional water cooling tower cooling method; 2) the problem of long pipes and excessive pressure on the traditional cooling tower; 3) The traditional central air-conditioning technology has high investment costs, redundant pipelines, and the problem that it is not flexible enough to face the complex and changeable stope environment

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