A Deep Mine Cooling System

Abstract

The invention discloses a deep mine cooling system comprising a cold source extraction station, a refrigeration workstation and a cooling workstation. The cold source extraction station is arranged in a low-temperature roadway of the shallow strata and comprises a plurality of heat exchanging tubes inserted into the shallow strata through the low-temperature roadway; the refrigeration workstation comprises a refrigerator communicated with the cold source extraction station through a pipeline, and the fluid is driven by a drive device to flow in the pipeline in an interacted manner; the cooling workstation is arranged at the inlet of a working face of a deep mine and comprises an air cooler and a fan, the air cooler cools the incoming air through the cooling fluid delivered by the refrigeration workstation, and the fan delivers the cooled air to the mining roadway of the deep mine. According to the system, the cold source extraction station is arranged in the low-temperature roadway of the shallow strata and obtains cold quantity in the shallow strata, the cooled air is input into the roadway of the deep mine through conversion of the refrigeration workstation and cooling workstation, since the cold quantity is sufficient in the shallow strata, the cooling efficiency is high.

Description

technical field [0001] The invention relates to a deep mine cooling system. Background technique [0002] Coal accounts for 68% of my country's primary energy. With the increase of mining intensity, the depth of coal mining is getting bigger and bigger. At present, in deep mining, due to high ground temperature, underground high-temperature heat damage is induced, so all high-temperature mines need to install mine cooling systems. Due to the large air volume, high temperature and high humidity of the underground working face, the required cooling load is large, so the cooling system requires a large cooling source. There are mainly three types of cold sources in the existing technology. The first type is the cold source in the underground return air, which is to obtain the cold source from the total underground return air. However, the temperature of the underground return air itself is high (greater than 35°C), so , the efficiency is very low; the second type of cold sour...

AI Technical Summary

Problems solved by technology

There are mainly three types of cold sources in the existing technology. The first type is the cold source in the underground return air, which is to obtain the cold source from the total underground return air. However, the temperature of the underground return air itself is high (greater than 35°C), so , the efficiency is very low; the second type of cold source is obtained from the surface air, and cooling towers and other equipment need to be placed on the surface to obtain this cold source. The road system is long, the pressure is high, and the cooling loss along the way is large; the third type of cold source is obtained from underground mine water, but not all mines have a large amount of mine water, so the application occasions are severely limited

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