Cooling and power generating integrated system for high-ground-temperature places

Abstract

Provided is a cooling and power generating integrated system for high-ground-temperature places. A circulation cooling system comprises a cold water gathering pool, U-shaped heat exchange pipes, a warm water gathering pool and a heat pump unit, wherein the U-shaped heat exchange pipes are distributed in drill holes inside a high-temperature coal bed and a high-temperature rock stratum; one port of each U-shaped heat exchange pipe communicates with the cold water gathering pool through a master water inlet pipe and a water pump, and the other port of each U-shaped heat exchange pipe communicates with the warm water gathering pool through a master water outlet pipe; and the warm water gathering pool is connected to a refrigeration part of the heat pump unit through a water conveying pipeline and a water pump, and then connected to the cold water gathering pool through a water conveying pipeline. The cooling and power generating integrated system for high-ground-temperature places can cool coal and rock mass internally, thereby having a better cooling effect; and the situation that a cold water source is conveyed from the far end of a tunnel is avoided, waste heat of the tunnel can be utilized for low-temperature power generation, energy is saved, and convenience is achieved.

Description

technical field [0001] The invention relates to the technical field of cooling and heat dissipation and thermal energy conversion application, in particular to an integrated system for cooling and power generation in places with high ground temperature. Background technique [0002] The heat source of high ground temperature: The formation of geothermal heat can be classified into three categories according to the heat source: namely, the convection of the earth's mantle; the heat at the concentration of volcanic magma and the fission heat of radioactive elements become the heat source. Among them, the impact on the construction of the tunnel project is mainly the heat source of the volcano and the fission heat source of the radioactive elements. [0003] (1) The heat source of volcanic heat: The heat supplied by the volcano is the heat energy of the underground magma concentration to generate hot water. This hot water (spring water) becomes a heat source and supplies heat t...

AI Technical Summary

Problems solved by technology

[0009] Although the above-mentioned cooling system uses water circulation to realize the two-way recycling of cold water and hot water, it can reduce the temperature at the mining face to a certain extent and utilize geothermal energy, which has a certain effect of energy saving and emission reduction, but the actual application effect is not good, because its The pipelines used to transmit cooling water are extremely long, and the process of pipeline transportation of cooling water absorbs heat. When the cooling water reaches the mining face, the temperature of the cooling water rises, which affects the cooling effect of the mining face, and only one-way pipes are used. The details are as follows: "Industrial chillers are connected to the water inlet pipeline, and the water inlet pipeline enters the air inlet transportation alley of the mine, and the water inlet pipeline enters the first high lane along the track up / downhill and the connecting lane; the inlet of the heat unit The water outlet is connected to the return water pipeline, which is connected to the mine’s general return air lane through the return air shaft, and the return water pipeline is connected to the high-level lane of the next working face along the return air up / downhill; it will only enter later to really play a cooling role "Several rows of branch-shaped drilling holes are evenly spaced between the first high-level roadway and the high-level roadway on the next working face"

In addition, the piping of the water circulation is set on the basis of the return air shaft and the return air lane. It is enough to see that the construction volume of the cooling system is relatively large, and the construction cost is high, especially when it reuses geothermal heat at the same time. and energy recycling are very low

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