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Temp lowering device for deep mine

A cooling device, deep mining technology, applied in mining equipment, ventilation of mines/tunnels, earthwork drilling, etc., can solve the problem of high system investment and operating costs, and achieve low system investment and operating costs, high efficiency, and conveying capacity. less effect

Inactive Publication Date: 2007-12-19
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system requires the mine to have sufficient compressed air source, its cooling capacity and cooling efficiency are lower than that of vapor compression refrigeration system, and the system investment and operating costs are higher than those of vapor compression refrigeration system

Method used

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  • Temp lowering device for deep mine

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Embodiment Construction

[0026] A cooling device for deep mining mines according to the present invention is composed of two parts: a surface unit A and an underground unit B. The underground unit B consists of a heat exchanger 5 and a blower 6; the ground unit A includes a compressor 1, a condenser 2, an expansion valve 3, and an evaporation condenser 4. The inlet of compressor 1 is connected to the outlet of evaporative condenser 4, the outlet of compressor 1 is connected to the inlet of condenser 2, the outlet of condenser 2 is connected to the inlet of expansion valve 3, and the outlet of expansion valve 3 is connected to evaporative condenser 4 The inlet of the evaporative condenser 4 is connected to the inlet of the compressor 1. The bottom heat exchange working medium outlet of the evaporative condenser 4 is connected with the inlet of the downhole heat exchanger 5 through a connecting pipe, and the outlet of the downhole heat exchanger 5 is connected with the top heat exchange working medium i...

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Abstract

The present invention discloses a deep exploitation wall temperature-dropping equipment. It includes ground machine unit A and underground machine unit B, and is characterized by that the ground machine unit A includes compressor, condenser, expansion valve and evaporative condenser, in which the inlet of compressor is connected with outlet of evaporative condenser, the outlet of compressor is connected with inlet of condenser, and the outlet of said condenser is connected with inlet of evaporative condenser by means of expansion valve. The underground machine unit B includes underground heat exchanger and air feeder, in which the bottom heat-exchanging working medium outlet of said evaporative condenser is connected with inlet of underground heat exchanger, and the outlet of underground heat exchanger is connected with top heat-exchanging working medium inlet of the evaporative condenser.

Description

technical field [0001] The invention relates to a refrigeration air conditioner for mines, in particular to a cooling device for deep mining mines. Background technique [0002] With the increase of mine mining depth, the rock temperature rises, and the heat damage of the mining and excavation working face environment becomes more and more serious. The temperature of many working faces exceeds 30°C, even as high as 40°C. At the same time, as the degree of mine mechanization is getting higher and higher, the resulting mechanical heat dissipation is getting bigger and bigger. Miners work in a high temperature environment, their labor productivity decreases, and their bodies are damaged. High temperature heat damage is considered to be one of mine disasters. When the ambient temperature exceeds the temperature of the human body, the human body not only does not dissipate heat, but absorbs heat from the surroundings. The greater the wind speed, the stronger the heat sensation. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F3/00F24F3/00
Inventor 方贵银张曼杨帆吴双茂
Owner NANJING UNIV
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