Box-free type heat pump hot water device
A technology of heat pump hot water and heat pump, which is applied in heating methods, household heating, household heating, etc., can solve the problems of water heaters not working, complex heat storage containers, etc., to reduce the load of power peak lines and lower heat storage temperature , the effect of small ambient temperature difference
Pending Publication Date: 2020-10-09
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0009] Invention patent CN106016786A discloses a tankless solar phase change heat storage water heater, which uses two kinds of heat storage materials to store heat, which can effectively match the sunshine conditions in summer and winter, effectively use energy, and improve the utilization efficiency of water heaters; The container is complex and the water heater does not work in continuous rainy weather
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Embodiment Construction
[0023] This embodiment is a tankless heat pump water heater.
[0024] Such as figure 1 As shown, a tankless heat pump water heater includes an expansion valve 1, an evaporator 2, a fan unit 3, a compressor 4, a first refrigerant valve 5, a second refrigerant valve 6, a reheating heat exchanger 9, A heat pump circulation circuit consisting of a check valve 10, a third refrigerant valve 12 and a heat storage pipeline 15; a first temperature sensor 7, a first hot water valve 8, a second hot water valve 11, a second temperature sensor 13, and a heat extraction pipe 17, the third temperature sensor 18 and tap water valve 20 composed of tap water heating flow path; by the heat storage pipeline 15 that the refrigerant flows through, the phase change material 16, the heat extraction pipeline 17 that the heated tap water flows through and the heat preservation material 14 Regenerator 19.
[0025] combine figure 1 The working process of a tankless heat pump water heater is explained:...
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The invention discloses a box-free type heat pump hot water device. The box-free type heat pump hot water device comprises a heat pump circulating system and a waterway heating system, wherein the twosystems are coupled through a heat accumulator and a reheating heat exchanger, a phase-change material absorbs or releases a large amount of latent heat in a phase change process to replace a traditional heat storage water tank with a large size, the box-free heat pump hot water device is achieved, in an off-peak electricity period, a compressor drives heat pump circulation working medium to do work, the heat pump circulation working medium heats the phase-change material in a condenser, the phase-change material stores the heat, when a user needs to use water in the peak period of electricity utilization, tap water directly exchanges the heat with the phase-change material which has stored the heat to obtain hot water, and when the water temperature cannot reach the preset water temperature, a heat pump circulation system can be started to conduct auxiliary heating through the reheating heat exchanger. The hot water device avoids generation of water storage sediments of the water tank, the water quality is cleaner, the electrical load of the peak electricity time of a power grid can be effectively reduced, and meanwhile the electricity charge of the user is effectively reduced.
Description
technical field [0001] The invention relates to a novel tankless heat pump water heating device, in particular to a tankless heat pump water heating device utilizing phase change materials to store heat. Background technique [0002] The heat pump water heating device uses the principle of the heat pump. First, the circulating working medium in the heat pump system performs work, making it undergo four processes of compression, condensation, expansion, and evaporation to realize a thermal cycle. The circulating working medium is exchanged with tap water in the condensation pipe. Heat, the high-temperature hot water after heat exchange is transported to the water storage tank for thermal insulation storage. [0003] In the heat pump water heating device, the hot water used by the user is not directly heated by energy sources (electricity, natural gas, etc.), but by the circulating working fluid in the heat pump, which is far away from potential safety hazards and avoids elect...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24H4/02F24H9/00F24H9/18F24H9/20
CPCF24H4/02F24H9/0005F24H9/1809F24H9/2014F24D2220/10F24D19/1054
Inventor 况晨曦张水艳党建军黄闯周晶淼
Owner NORTHWESTERN POLYTECHNICAL UNIV