Instant hot type heat pump water heater

Abstract

A heat pump water heater comprises a compressor, a heat-exchanger, a liquid-storage tank, a filter screen, an expansion valve, a heating wire and a water temperature electric controller. It also includes a residual-heat recovery device, which includes a bathing waste water collecting tank, a water pump, a waste water heat-exchanger and an evaporation heat exchanger. A water pump suction pipe is in communication with the bathing waste water collecting tank and a water pump water intake is in communication with the waste water heat-exchanger. A water jacket connected with the water jacket of the evaporation heat-exchanger is in communication with the drain-pipe. A tap water pipe is in communication with the internal water jacket inlet of the waste water heat-exchanger and the internal water jacket outlet is in communication with the water jacket inlet of the condensation heat exchanger.

Description

technical field [0001] The invention relates to a new type of heat pump water heater. Background technique [0002] There is a heat pump water heater that uses the principle of a split air conditioner to provide hot water and cold air. It is a heat storage heat pump water heater. It is equipped with a water storage tank. Standby, it has the following disadvantages: First, the water storage tank has a large amount of water, the heating time is long, and it cannot be used immediately. When the temperature is lower than zero degrees Celsius, it cannot be used, and the applicable areas and seasons are narrow; the second is the temperature of hot water. Can not be adjusted; the 3rd, the life-span of water storage tank liner is short, just scrapped within 3-5 years; Contents of the invention [0003] The object of the present invention is to provide an instant heat pump water heater which can overcome the above drawbacks. [0004] This device includes compressor, condensing he...

AI Technical Summary

Problems solved by technology

[0002] There is a heat pump water heater that uses the principle of a split air conditioner to provide hot water and cold air. It is a heat storage heat pump water heater. It is equipped with a water storage tank. Standby, it has the following disadvantages: First, the water storage tank has a large amount of water, the heating time is long, and it cannot be used immediately. When the temperature is lower than zero degrees Celsius, it cannot be used, and the applicable areas and seasons are narrow; the second is the temperature of hot water. It cannot be adjusted; the third is that the service life of the inner liner of the water storage tank is short, and it will be scrapped within 3-5 years; the fourth is that the structure is complicated, the materials are many, heavy, bulky, and the cost is high; the fifth is that there are more heat dissipation losses

Images