Novel heating wire defrosting device for air energy heat pump water heater

Abstract

The invention discloses a novel heating wire defrosting device for an air energy heat pump water heater, which comprises a circulation loop, wherein the circulation loop consists of a compressor, a four-way electromagnetic valve, a condenser, a liquid storage tank, a filter, a throttle device, a heat exchanger and a gas-liquid separator, the four-way electromagnetic valve is respectively connected with the compressor, the condenser, the heat exchanger and the gas-liquid separator, a fin copper pipe is arranged on the heat exchanger, and a furtulon carbon fiber heating wire is bound outside the fin copper pipe. The novel heating wire defrosting device for the air energy heat pump water heater has the beneficial effects that the furtulon carbon fiber heating wire is utilized, the electric energy is converted into the heat energy, work media flowing in the reverse direction in the fin copper pipe carry out auxiliary heating, the heat absorption from the hot water side is avoided, and the stability of hot water temperature is ensured. Compared with the traditional defrosting method, the novel heating wire defrosting device has the advantages that the defrosting speed is faster, the hot water manufacture efficiency of a machine set can not be reduced, and the heating efficiency reduction caused by four-way valve failure is avoided.

Description

Technical field [0001] The invention relates to a household and commercial air source defrosting system, in particular to a new type of air energy heat pump water heater heating wire defrosting device. Background technique [0002] At present, the most widely used air energy heat pump water heater defrosting technology is to achieve the purpose of defrosting through the use of four-way valve recoil. The principle is to use the four-way valve to change the flow direction of the refrigerant, thereby reversing the functions of the condenser and the evaporator of the heat pump system. The high temperature and high pressure refrigerant discharged from the compressor enters the evaporator first, and the evaporator is used as a condenser to obtain compression. The heat from the machine melts the frost layer on the fins; and the condenser functions as an evaporator, providing heat to the frost layer together with the compressor. However, the unit that simply uses the four-way valve defr...

AI Technical Summary

Problems solved by technology

However, the unit that simply uses the four-way valve defrosting technology to defrost does not produce heat during the defrosting process, but absorbs heat from the hot water in the water tank, causing the water temperature to drop and affecting the user's use effect

Secondly, under normal circumstances, it takes a long time to defrost, which reduces the efficiency of the unit to produce hot water

In addition, when the temperature is relatively low and the weather is relatively severe, the traditional four-way valve defrosting technology cannot completely remove the frost layer condensed on the fins, which greatly reduces the heating efficiency of the unit

In addition, as a precision component, the four-way valve may fail, which increases the maintenance cost and affects the defrosting effect of the unit

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