Air source heat pump water heating device regional staged heat preserving integrated machine

Abstract

The invention relates to an air source heat pump water heating device regional staged heat preserving integrated machine. The machine comprises an evaporator, a compressor, a condenser / heat storage integrated device which has two kinds of effects of a condensing refrigerating agent and heating temperature-increasing water heating and a throttle device. A regional staged heat preserving technologyis adopted to meet water using demands of winter and summer; compared with a traditional heat preserving water tank, the installing space and production cost of a heat preserving device can be effectively reduced because phase change heat preserving has higher energy storage density; compared with a single heat preserving device, the adopted regional staged heat preserving technology can ensure that an air source heat pump still has higher performance parameters when external temperature is extremely low in winter, heat using demands of an external user is ensured through phase-change heat storage material pre-heating and electric heating before heat temperature increasing, the machine has the advantages of being efficient, energy saving, compact in structure, more practical and the like,and the machine can be extensively applied to the fields of life water heating and building heat generating.

Description

technical field [0001] The invention belongs to the technical field of heat pump water heaters, and relates to an air source heat pump water heater with sub-area cascade heat storage integrated machine. Background technique [0002] In recent years, phase change heat storage has attracted widespread attention because of its high heat storage density, stable heat absorption and release, and low material price, and has been used in air source heat pump water heaters. Phase change energy storage is a technology that uses phase change heat storage materials to absorb or release latent heat of phase change during the phase change process to store and release energy. Phase change energy storage technology has broad application prospects in many fields such as solar thermal utilization, waste heat recovery, power "peak shaving and valley filling", thermal management systems, and building energy conservation. [0003] Air source heat pump water heaters have been widely developed as...

AI Technical Summary

Problems solved by technology

This method simply relies on the phase change material to realize the heat of condensation of the refrigerant to heat the tap water for the user to use. Although the phase change temperature is too high to meet the water demand of the user, the coefficient of performance of the heat pump system will be relatively low, and the energy consumption will be reduced. Too big, low energy efficiency

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