Experimental method for casing heat mining with phase change thermal storage materials

Abstract

The invention discloses a casing type mine heat mining experiment method containing a phase change heat storage material. The experimental device used includes an experimental box body, a water supply system and a data collector. The experimental box body includes a rectangular parallelepiped frame structure heat preservation box body and A plurality of electric heating carbon fiber temperature control panels are arranged inside the inner wall of the heat preservation box. The inner cavity of the heat preservation box is provided with a filling space for accommodating filling materials and forming multiple filling layers. Tube heat collection device and ribbed heat pipe; water supply system includes heat preservation water tank, water distributor and water collector; data collector is connected with computer. The invention can simply and conveniently simulate the influence of different pipe row layouts on the heat storage and release of the mine filling body and the temperature field during the heat absorption and heat release process of the phase change heat storage material in the casing, and provides an experiment for the study of mine high temperature heat recovery devices. Basic, strong practicability, easy to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of mine heat exchange, and in particular relates to a casing-type mine heat collection experiment method containing a phase-change heat storage material. Background technique [0002] With the gradual reduction and depletion of shallow mineral resources, the development and utilization of deep mineral resources will become an inevitable trend. Deep mining is in a special environment such as high stress, high well temperature and high well depth. Fill mining method and geothermal mining are effective measures to control ground pressure, alleviate deep well heat damage, and improve the utilization rate of mineral and geothermal resources. [0003] The filling mining method belongs to the artificial support mining method. In the mine room or ore block, as the mining face advances, the filling material is sent to the goaf to manage the ground pressure, control the collapse of the surrounding rock and the moveme...

AI Technical Summary

Problems solved by technology

[0005] However, the casing-type mine heating technology containing phase change materials is immature at present, and a large number of experiments are still needed. If these experiments are carried out in the actual stope of the mine, it will consume a lot of manpower and material resources

Images