Temperature differential mine air conditioner cold-heat source energy system

Abstract

The invention relates to a temperature differential mine air conditioner system, which comprises a fluid medium, a refrigerator, a compressor device, a heat pump central water heater, a low-temperature liquid storage device, an evaporation heat exchanger device, an evaporation-condensation heat exchange device, a condensation heat exchange device and a pipeline system for tightly and circularly connecting the devices in sequence. The temperature differential mine air conditioner system is characterized in that the evaporator heat exchange device is arranged underground; the condensation heat exchange device is arranged at the position on the ground and / or underground, which is economic and easy to discharge condensation heat, preferably the position on the ground; and the fluid medium circularly flows in the pipeline system. The system solves the problems of difficult delivery, complicated pipeline, high investment and insusceptible discharge of the condensation heat of a secondary refrigerant of the mine air conditioner.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning and refrigeration, and in particular relates to a mine air-conditioning and refrigeration technology. Background technique [0002] With the increase of mine mining depth and the continuous improvement of mechanization, high temperature heat damage in deep mines has become one of the major problems restricting coal mine safety production. The limit mining depth of mines in the future will depend on the development level of mine cooling technology and equipment. my country's coal mines have been extending downward at a rate of about 10 meters per year. [0003] The high-temperature and high-humidity underground working environment will make people feel uncomfortable, thereby reducing labor production concerns, increasing the accident rate, and affecting the safe production of the mine. When people are engaged in heavy physical labor under high temperature conditions, the cooling capacity ...

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Problems solved by technology

[0006] Second, non-economic

However, no matter which method is used, the pipeline system is complicated and the pipeline investment is huge. In such a scheme, the pipeline investment cost will account for more than half of the entire refrigeration system. Although the ground centralized type is easy to discharge condensation heat, the pipeline system is too long and Complex, secondly, difficult hydraulic balance

Both the downhole type and the upper and lower combined type have difficulties in discharging condensation heat and high discharge costs

For example, the patent number is 200420002464.8 "Low-temperature gushing water cooling device for mine air-conditioning", which is difficult to operate

[0009] The second type is air-cooled air conditioner, and there are turbo-type air-cooled, variable-capacity air-cooled, vortex-tube-type air-cooled, and compressed-air ejector-refrigerated forms; Due to its small cooling capacity and high noise, it has not been well applied; the problem with variable capacity air cooling is variable capacity compression—some key technical issues in the expander, such as variable capacity compressor bearings and lubrication needs solve etc.

However, it is still an unresolved technical problem for pipeline transportation of solid ice, such as the patent No. 200420002466.7 "Mine Ice Cooling and Low Temperature Radiation Cooling System", which is very difficult to operate

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