Heat pump water heater, heating method and computer readable storage medium

Abstract

The invention provides a heat pump water heater, a heating method and a computer readable storage medium. The heat pump water heater comprises an outdoor unit, a first heat accumulation box body and asecond heat accumulation box body, wherein the outdoor unit is internally provided with a heating system; the heating system comprises a compressor and an evaporator; the first heat accumulation boxbody is internally provided with a first heat accumulation heat exchanger; a first throttle valve is arranged on a first branch pipeline where the first heat accumulation heat exchanger is arranged; the second heat accumulation box body is internally provided with a second heat accumulation heat exchanger, wherein the phase change temperature of a phase change material in the first heat accumulation box body is greater than the phase change temperature of a phase change material in the second heat accumulation box body; and the opening degree of the first throttle valve is controlled through arelation between the phase change temperature of the phase change material in the first heat accumulation box body and setting temperature. By adopting the technical scheme provided by the invention,the volume of the heat pump water heater can be effectively reduced; when a user needs hot water with relatively low temperature, electric energy is saved; and when the user needs hot water with relatively high temperature, the hot water is continuously supplied.

Description

technical field [0001] The present invention relates to the technical field of heating and ventilation equipment, and in particular, relates to a heat pump water heater, a heating method and a computer-readable storage medium. Background technique [0002] At present, users need water heaters to output hot water for bathing, washing, etc. in daily life. Most of the wall-mounted heat pump water heaters on the market are water storage type, and the water in the water tank is heated through the heat pump system. As the demand increases, the volume and weight of water storage wall-mounted heat pump water heaters will increase accordingly, taking up too much space. However, some heat pump water heaters using phase change heat storage technology use phase change heat storage materials with a single phase change temperature point. It cannot take into account the energy saving when the user needs hot water at a lower temperature, and the problem of continuously supplying hot water f...

AI Technical Summary

Problems solved by technology

[0002] At present, users need water heaters to output hot water for bathing, washing, etc. in daily life. Most of the wall-mounted heat pump water heaters on the market are water storage type, and the water in the water tank is heated through the heat pump system. As the demand increases, the volume and weight of water storage wall-mounted heat pump water heaters will increase accordingly, taking up too much space. However, some heat pump water heaters using phase change heat storage technology use phase change heat storage materials with a single phase change temperature point. It cannot take into account the energy saving when the user needs hot water at a lower temperature, and the problem of continuously supplying hot water for a long time when the user needs hot water at a higher temperature

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