Composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply

Abstract

The invention provides a composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply, belonging to the energy technical field. The device comprises a low-grade residual heat device, a thermochemical pressure swing desorption composite energy storage device, a thermochemical temperature swing adsorption combined cold-heat supply device, two refrigerant regulating valves, a condenser and a heat exchange coil pipe for the condenser, wherein, the low-grade residual heat device is connected with the thermochemical pressure swing desorption composite energy storage device; the thermochemical pressure swing desorption composite energy storage device is connected with the inlet of a first refrigerant regulating valve; the outlet of the first refrigerant regulating valve is connected with the inlet of the condenser; the outlet of the condenser is connected with the inlet of a second refrigerant regulating valve; the exit of the second refrigerant regulating valve is connected with the thermochemical temperature swing adsorption combined cold-heat supply device; and the condenser is internally equipped with the heat exchange coil pipe for the condenser. The device is applied to energy quality improvement of low-grade residual heat / industrial waste heat and efficient recovery; and the device has the advantages of strong temperature-rise capability, high stored energy density, composite storage of heat and refrigerating capacity, and combined cold-heat supply.

Description

technical field [0001] The invention relates to a device in the field of energy technology, in particular to a thermochemical temperature-swing adsorption combined cooling and heating combined energy storage energy supply device. Background technique [0002] Energy is the material basis for human survival and social development. The current situation of my country's energy utilization is that the per capita energy resources are small and the energy utilization efficiency is far below the level of developed countries. Due to the low efficiency of energy utilization, low-grade thermal energy (such as industrial waste heat / waste heat and renewable energy) is very abundant in China, such as steel industry, chemical industry, construction industry, food industry, paper mills, solar energy, geothermal and other low-grade waste heat / Industrial waste heat, however, due to the lack of science and technology for efficient utilization of low-grade waste heat and the rational allocati...

AI Technical Summary

Problems solved by technology

[0004] 1. The Chinese patent application number is: 200720003768.X, and the name is: a low-grade waste heat recovery heat pump water heating device, which includes a preheater, an evaporator, two condensers, two independent compressors, Two refrigerant expansion elements, two water pumps, and other accessories are used to recover the heat in waste water at 30-50°C to produce clean hot water above 55°C. The disadvantage is that the output temperature of the heat pump device is low, mainly Applied to building heating, composite energy storage of low-grade waste heat cannot be realized

[0005] 2. The Chinese patent application number is: 200710049983.8, titled: A low-grade thermal energy direct utilization system and method, the system includes: low-grade heat source, heat exchanger, air-conditioning terminal equipment, low-grade energy, terminal equipment, low-grade energy Heat exchangers and heat transfer fluids, which use a temperature difference of 5-15°C from the target temperature to achieve indoor temperature control of 16-26°C, and directly use low-grade heat sources with a temperature of 0-45°C to achieve heating and cooling of buildings. The disadvantage is that the energy grade improvement and composite energy storage of low-grade waste heat cannot be realized

[0006] 3. The Chinese patent application number is: 00101163.4, and the name is: absorption heat pump and its control method. The device includes a regenerator, a condenser, an evaporator, and an absorber. It can use waste heat to obtain high-temperature fluid and low-temperature fluid, and realize combined cooling and heating. , the disadvantage is that the low heating capacity of the heat pump leads to a small increase in the energy grade of low-grade waste heat, which limits the application range in the field of industrial waste heat recovery, and cannot realize composite energy storage

[0007] 4. The Chinese patent application number is: 200710171228.7, and the name is: two-stage gas-solid reaction thermal temperature changer system, which includes the first chamber, the second chamber, the third chamber, the fourth chamber, and the first gas circuit Valves, second gas path valves, heat recovery valves and other components, this system can realize the temperature increase of waste heat / low-grade heat source, its disadvantage is that the chemical reaction rate of each chamber is different, resulting in large fluctuations in the output temperature of the system, which is difficult to communicate with the outside world User matching, and combined heating and cooling cannot be realized

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