Open planar phase change heat storage tank

Abstract

The invention discloses an open planar phase change heat storage tank. The heat storage tank mainly comprises a heat storage water tank (1), a clamping groove plate (2), a guide groove (3), a phase change heat storage plate (4), a thermal insulation layer (5), a high-temperature hot water injection pipe (6), a hot water supply pipe (7) and a water return pipe (8). Valves are installed on the pipes to regulate flow, a phase change heat storage material is installed in the phase change heat storage plate, a phase change material with the phase change temperature to be equal to hot water temperature is adopted according to requirements, and a phase change temperature range is 0-100 DEC G. When high-temperature hot water is supplied, the hot water is injected in the heat storage water tank, and heat of the hot water is stored in the phase change heat storage material. When supply of the high-temperature hot water is stopped, the phase change heat storage plate releases heat to enable water in the water tank to maintain the phase change temperature and supplies heat. The open planar phase change heat storage tank utilizes the advantages of large heat storage and stable temperature of the phase change material, overcomes the defect of unstable heat supply of a heat supply source, prolongs heat supply time, maintains stable heat supply temperature, and can greatly reduces volume of the heat storage water tank.

Description

technical field [0001] The invention relates to a phase change heat storage heat supply technology, in particular to an open flat plate phase change heat storage box. Background technique [0002] In the heating system, in many industrial plants such as smelters and power stations, there is a large amount of high-temperature hot water, but it cannot be used because the temperature is too high or the water quality cannot meet the requirements, and it is directly discharged, causing huge energy waste and phase change. Due to its large heat storage capacity and stable temperature storage characteristics, the heat storage material can absorb heat from high-temperature hot water and maintain the temperature of the heat storage tank at around the phase transition temperature for use. Patent CN101915464A discloses a phase change thermal storage solar water heater, which solves the problem that the phase change material of the existing phase change thermal storage solar water heater...

AI Technical Summary

Problems solved by technology

[0002] In the heating system, in many industrial plants such as smelters and power stations, there is a large amount of high-temperature hot water, but it cannot be used because the temperature is too high or the water quality cannot meet the requirements, and it is directly discharged, causing huge energy waste and phase change. Due to its large heat storage capacity and stable temperature storage characteristics, the heat storage material can absorb heat from high-temperature hot water and maintain the temperature of the heat storage tank at around the phase transition temperature for use.

Patent CN101915464A discloses a phase change thermal storage solar water heater, which solves the problem that the phase change material of the existing phase change thermal storage solar water heater has poor thermal conductivity and cannot transfer the heat energy converted from solar energy to the phase change material well. However, the heat storage tank of this system has a complex structure and a fixed form. The present invention can directly inject various high-temperature hot water into the water tank, so that the heat storage material can accumulate heat, has high heat exchange efficiency, simple structure, and can be flexibly disassembled. The change of heat can increase or decrease the phase change hot plate at will, or choose the phase change hot plate module of the corresponding phase change material according to the different heating temperature

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