Compressor variable capacity regulated instant heat pump water heater

Abstract

The invention discloses a compressor variable capacity regulated instant heat pump water heater, comprising a refrigerant circulating system, a water supply system and a control system, wherein the water supply system comprises two cold water pipes, a flow regulating valve, a water mixing valve, an auxiliary water storage tank, a hot water pump and a solenoid valve. One of the two cold water pipes is connected with an inlet water pipe of a condenser through an outlet of the flow regulating valve, is communicated with the auxiliary water storage tank by an outlet water pipe of the condenser and is connected with the water mixing valve by the auxiliary water storage tank; and the other one of the two cold water pipes is directly connected with the water mixing valve. The auxiliary water storage tank is also provided with an interface which is connected with the hot water pump, and the hot water pump is connected with an outlet pipeline of the flow regulating valve through the solenoid valve. The auxiliary water storage tank solves heating problems in a start-up procedure or a midway stop procedure in the prior art. The compressor variable capacity regulated instant heat pump water heater is high in energy efficiency ratio and good in energy saving effect, reduces the starting current through low-load start-up, and does not influence the use of other household appliances.

Description

technical field [0001] The invention relates to a water heater, in particular to an instant heat pump water heater with variable displacement adjustment of a compressor. Background technique [0002] Heat pump water heaters use the reverse Carnot cycle principle to transfer heat from a low-temperature environment to a high-temperature environment (hot water) by consuming a small amount of electricity. It is an energy-saving product for producing sanitary hot water, with an annual energy efficiency ratio of about 3.0. At present, there are two types of heat pump water heaters: circulation heating type and one-time heating type. The former heats the water in the storage tank through circulation, and finally raises the temperature of the stored water to 50-60°C; Water (temperature 5-35°C) is heated to 45-60°C at one time. The one-time heating type is divided into two types: direct heating type and instant heating type. The water is sent to the insulation water tank first, and ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, to provide a safe, convenient, high-efficiency compressor variable-capacity adjustment instant heat pump water heater, which solves the difficulties of controlling the water temperature of the heat pump water heater, unstable water outlet and when the heat pump is started. Problems affecting other household appliances

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