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Multi-energy complementary mining area heating supply system

A heating system and multi-energy technology, applied in the field of heating systems in mining areas, can solve the problems of low temperature direct use of bathing wastewater and mine gushing water, unsuitable for direct use, insufficient cleanliness, etc. The effect of improving work efficiency

Active Publication Date: 2018-11-06
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Both bathing wastewater and mine gushing water are low-energy hot water and the amount is relatively large. It would be very wasteful to discard them directly. Contradictory; if this part of low-level energy hot water is used, there are many problems, the most prominent problem is that the temperature of bathing wastewater and mine water is too low to be directly used; secondly, the cleanliness is not enough, not suitable for direct use

Method used

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  • Multi-energy complementary mining area heating supply system
  • Multi-energy complementary mining area heating supply system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 Shown is a schematic diagram of the fluid direction and working principle of the multi-energy complementary mine district heating system in the preferred embodiment 1 of the present invention.

[0044] Such as figure 1 As shown, the system includes:

[0045] Low thermal energy wastewater supply device 1, collects low thermal energy wastewater including bathing wastewater and mine gushing water and outputs thermal energy wastewater through the first and second low thermal energy wastewater pipes, refer to the output of thermal energy wastewater pipes represented by marks 11 and 12 in the figure of water.

[0046] The first heat application unit 20 includes a first water-water heat exchanger 2, a first heat pump group 3 and a tap water source. The first heat pump group includes three heat pumps, namely a heat pump 3a, a heat pump 3b, and a heat pump 3c. Each heat pump 3a , 3b, 3c all include the evaporator end 31 and the heat exchanger end 34. The the...

Embodiment 2

[0053] see image 3 As shown, the difference between embodiment 2 and embodiment 1 is that the first water-water heat exchanger 7 and the second water-water heat exchanger 9 are replaced with the thermal energy waste water 11 and the first low heat energy waste water pipe output respectively. The thermal energy wastewater 12 output by the second low thermal energy wastewater pipe is in a parallel relationship. In other words, thermal energy waste water 11 is connected to the first water-water heat exchanger 7 with a branch, and thermal energy waste water 12 is connected to the second water-water heat exchanger 9 with a branch. In this way, it can be ensured that when the thermal energy wastewater 11 output by the first low thermal energy wastewater pipe and the thermal energy wastewater 12 output by the second low thermal energy wastewater tube enter the first heat pump group 3 and the second heat pump group 10, they will be transferred to the low temperature and low pressure ...

Embodiment 3

[0055] The difference between embodiment 3 and embodiment 1 is only that the first water-water heat exchanger 7 and the second water-water heat exchanger 9 are replaced by heat pumps, and similarly, the thermal energy output by the first low-heat-energy waste water pipe is respectively The waste water 11 and the heat waste water 12 output by the second low heat waste water pipe are in a parallel relationship, that is, the heat waste water 11 and the heat waste water 12 are connected to each heat pump with a branch, that is, the water-water heat exchanger is omitted.

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Abstract

The invention discloses a multi-energy complementary mining area heating supply system. The multi-energy complementary mining area heating supply system includes a low heat energy waste water supply device, a first heat application unit and a second heat application unit, wherein the low heat energy waste water supply device collects the low heat energy waste water including the bath waste water and the mine inrush water and outputs outwards, the first heat application unit includes a first heat pump group and a tap water source, the low heat energy waste water is connected to the evaporator end of each heat pump in the first heat pump group through branches, the tap water passes through the heat exchanger end of each heat pump in the first heat pump group in sequence, and the tap water isheated to a predetermined temperature in a multiple-level mode; and the second heat application unit includes a water-alcohol heat exchanger and an alcohol-air heat exchanger, the low heat energy waste water is supplied to the water-alcohol heat exchanger, the alcohol in the water-alcohol heat exchanger absorbs the heat of the low heat energy waste water to be converted into the hot alcohol, thehot alcohol heats the air through the alcohol-air heat exchanger, and the heated air is used for preventing freezing of a wellhead at a mine well. The energy used in the multi-energy complementary mining area heating supply system uses low-grade energy, the energy consumption is low, the heat production quantity is high, zero discharging of the hot water is achieved, the system is simple, the operating efficiency is high, and the system is suitable for the utilization and promotion in the northern coal mine areas.

Description

technical field [0001] The invention belongs to mining engineering and energy engineering, in particular to a multi-energy complementary mining area heating system that effectively coordinates, distributes and utilizes various energy sources. Background technique [0002] In recent years, the smog phenomenon in China has become more and more serious, especially in Beijing, Shenyang and Tianjin. The topic of "energy and environmental protection" has become a hot spot for domestic people. In the context of deteriorating environmental quality, if we want to protect the environment on the premise of ensuring economic development, we should start with solving problems such as carbon emissions. In winter in the northern coal mining area, a lot of heat is needed for bathing, heating and wellhead antifreeze. The number of employees in the coal mine area is huge, and bathing produces a large amount of waste water with a small amount of heat. In addition, the mines in the mining are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D15/04F24D19/00F24D19/10
CPCF24D15/04F24D19/00F24D19/1006
Inventor 郭平业王妍炜祝遵强
Owner CHINA UNIV OF MINING & TECH (BEIJING)