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Mine underground cooling and waste heat recycling system

A technology of waste heat recovery and mine return air, which is applied in mine/tunnel ventilation, heat pumps, mining equipment, etc. It can solve problems such as waste of heat energy, low efficiency, and inconformity with energy saving and emission reduction, and achieves diverse and flexible forms and difficult construction And the effect of low installation cost, high economic benefit and environmental protection benefit

Active Publication Date: 2012-10-17
北京矿大节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, non-artificial cooling is usually achieved by using or increasing ventilation, which is now difficult to meet the cooling needs of mines; artificial cooling requires high energy consumption to provide cooling load, low economic benefits, and no Meet the requirements of energy saving and emission reduction
In addition, mine cooling and heat removal need to be achieved by means of mine return air, mine drainage, or setting up cooling towers on the ground. Some heat loads are directly discharged into the environment without being used, resulting in a waste of heat energy and low efficiency.

Method used

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  • Mine underground cooling and waste heat recycling system
  • Mine underground cooling and waste heat recycling system
  • Mine underground cooling and waste heat recycling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment one (such as figure 1 shown), when the mine return air heat pump system 4 is a mine return air source heat pump system, it includes a diffusion tower 41 arranged at the air outlet of the mine return airway, and a return air heat exchange unit arranged at the upper part of the air outlet of the diffusion tower 41 device 42, the sump 43 arranged at the lower part of the diffusion tower 41, the sump 44 connected with the return air heat exchanger 42 and the sump 43, the heat pump unit 45 forming a low-temperature heat source circulation loop with the sump 44 and the heat pump unit Unit 45 constitutes a consumer equipment unit 46 of the consumer heating circuit. Wherein, the heat pump unit 45 includes an evaporator 451 , a condenser 452 , a compressor 453 and an expansion valve 454 .

[0022] The working method of embodiment one is as follows:

[0023] 1) The brine in the heat exchange pipe of the air cooler 11 performs heat and moisture exchange with the downh...

Embodiment 2

[0029] Embodiment two (such as figure 2 As shown), when the mine return air heat pump system 4 is a direct expansion mine return air source heat pump system, it includes a diffusion tower 41 arranged at the air outlet of the mine return air lane, and is arranged outside the upper part of the air outlet of the diffusion tower 41. A gas-liquid heat exchanger 42 is installed, a heat pump unit 43 forming a low-temperature heat source circulation loop with the external gas-liquid heat exchanger 42 and a user equipment unit 44 forming a user heat supply circulation loop with the heat pump unit 43 . Wherein, the heat pump unit 43 includes a compressor 431 , a built-in gas-liquid heat exchanger 432 and an expansion valve 433 .

[0030] The working method of embodiment two is basically the same as that of embodiment one, except that steps 4) to 6) are changed to the following steps 4) to 5):

[0031] 4) The mine return air absorbs heat and enters the diffusion tower 41 of the mine re...

Embodiment 3

[0035] Embodiment three (such as image 3 As shown), the air cooler unit 1, the cooling unit unit 2 and the high and low pressure heat exchanger unit 3 are arranged underground in the mine, and the cooling tower 4, the heat pump unit 5 and the user equipment unit 6 are arranged above the mine.

[0036] The air cooler unit 1 can be arranged in the mining face, the driving face and the electromechanical chamber of the mine, and it includes more than one air cooler 11, and the heat exchange pipes of each air cooler 11 are filled with water or two Alcohol and other refrigerants are connected in parallel to the main pipeline connected to the evaporator 21 shell of the cooling unit unit 2 to form a refrigerant circulation loop in which a circulation pump 12 is arranged.

[0037] In the cooling unit 2, the heat exchange pipe of the evaporator 21 is filled with refrigerant, and its two ends are connected to the shell of the condenser 22 through a refrigerant output pipe and a refriger...

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Abstract

The invention relates to a mine underground cooling and waste heat recycling system, comprising an air cooler unit, a cooling set unit, a heat pump set unit and a user equipment unit, and a mine return air heat pump system or a cooling tower. According to specific implementation requirements, different combined connections are used for forming multiple heat exchange circulation loops, by the multiple heat exchange circulation loops, the underground high-temperature waste heat is recycled and provided for corresponding user equipment, so that the mine underground cooling is realized, and the requirement on heat usage for production and living of the coal mine is satisfied. The mine underground cooling and waste heat recycling system can be widely used in the mine underground cooling and waste heat recycling process.

Description

technical field [0001] The invention relates to a cooling and heat energy recycling system, in particular to a mine well cooling and waste heat recycling system. Background technique [0002] With the increasing depth of mines and the continuous improvement of mining mechanization, high temperature heat damage in deep mines has become one of the major problems restricting the safe mining of coal mines. It not only affects the work efficiency of underground employees and causes economic losses, but also seriously affects the health and life safety of employees. At present, mine cooling measures mainly include non-artificial cooling and artificial cooling. Among them, non-artificial cooling is usually implemented in the form of utilizing or increasing ventilation, which is now difficult to meet the cooling needs of mines; artificial cooling requires high energy consumption to provide cooling load, low economic benefits, and not Meet the requirements of energy saving and emis...

Claims

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Application Information

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IPC IPC(8): E21F3/00F25B30/00
Inventor 王建学裴伟牛永胜薛勇刚孟杰夏婷婷王益佳
Owner 北京矿大节能科技有限公司
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