Water heating unit

Abstract

The invention belongs to the technical field of water heaters, particularly relates to a water heating unit, and aims to solve the problem that after water replenishing, in the process that water in an insulation water tank is heated to a temperature set by a user, the water temperature in the insulation water tank of a conventional water heater cannot meet the using requirements of the user. In order to solve the problem, the invention provides the water heating unit. According to the water heating unit disclosed by the invention, in the water heating process, the flow ratio of hot water entering a heating main machine, of a pressure bearing water tank and the insulation water tank is adjusted through a water mixing valve, so that the purpose that after adjusting, water is heated by the heating main machine once, and directly enters the insulation water tank to still guarantee that the using requirements of the user are met, is realized; and besides, in the dynamic adjusting process of the water mixing valve, water which flows out of a water outlet of the water heating main machine but does not meet the temperature requirements can reflow to the pressure bearing water tank througha valve which is connected with the water outlet of the heating main machine, so that the situation that water which does not meet the temperature requirements flows into the insulation water tank.

Description

technical field [0001] The invention belongs to the technical field of water heaters, and in particular relates to a water heater unit. Background technique [0002] Chinese patent application document (CN108019938A) discloses a household atmospheric pressure heat pump water heater. The water heater includes an insulated water tank, a heat exchanger and a heat pump system. The heat exchanger is provided with a refrigerant channel and a water flow channel for mutual heat exchange. Connected into a circuit, the water inlet hole of the thermal insulation water tank is connected with the outlet of the water flow channel; the a port of the electric three-way regulating valve is connected with the water outlet hole of the thermal insulation water tank, the b port is connected with the inlet of the water flow channel through the water pump, and the c port is connected with the water inlet pipe ; A water outlet pipe is also provided between the water outlet hole of the thermal insul...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the water temperature in the heat-preserving water tank cannot meet the user's requirements during the process of heating the water in the heat-preserving water tank after replenishing water to the temperature set by the user in the existing circulating water heater. Use requirements, problems that affect the normal use of users, the invention provides a hot water unit

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