Layered heat storage type heat pump water heater system

Abstract

The invention provides a layered heat storage type heat pump water heater system. The system comprises a water tank, the interior of the water tank is divided into two water temperature areas by a partition plate with holes in the height direction, the two water temperature areas are connected with heating devices respectively and heated independently, so that a high-temperature area is formed atthe upper portion, a low-temperature area is formed on the lower portion, the top and the bottom of the water tank are connected with a water outlet pipe and a water inlet pipe respectively, when thewater heater is in an energy storage and heat preservation mode, the two water temperature areas are kept in a layered and mutually independent state, and when the water heater is in a water using mode, water flows from the low-temperature area to the water temperature area under the action of pressure to achieve communication. A heating device adopts micro-channel condensing coils in a heat pumpcirculating system, the micro-channel condensing coils are coiled on the outer wall of a water tank inner container, and the two sets of micro-channel condensing coils connected with the high-temperature area and the low-temperature area operate in parallel. According to the layered heat storage type heat pump water heater system, by reducing the temperature of hot water in the water tank and adjusting the structures of the condensing coils and the water tank, the effects of guaranteeing water consumption of a user and reducing system operation energy consumption are achieved.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to a stratified heat storage type heat pump water heater system. Background technique [0002] The air source heat pump water heater absorbs low-grade heat from the air and heats the water in the water tank. It has the characteristics of energy saving and environmental protection, and has broad development prospects. It occupies an important position in the domestic and international water heater markets. According to statistics, in many parts of the world, the energy consumption of household hot water accounts for 20% of the total household energy consumption, accounting for more than 67.91% of household water energy consumption. With the increase of social energy demand year by year, energy saving has always been the first theme of water heater development. [0003] Most of the existing heat pump water heater systems are designed with three modes of energy storage,...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a layered heat storage type heat pump water heater system, in which two relatively independent layered heating and heat preservation areas are set, and the temperature of the two areas is controlled independently, and the two areas cooperate with each other when using water at the same time, which can solve the problem of reducing the energy consumption of the water heater. Contradictions between consumption and timely supply of hot water

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