Transcritical CO<2> heat pump one-piece heat exchanger, water tank and water heating all-in-one machine

Abstract

The invention relates to a transcritical CO<2> heat pump one-piece heat exchanger which comprises a heat exchanger body. The heat exchanger body comprises an inner pipe and an outer pipe. The outer pipe is separated into a heat exchanger outer pipe air cooler segment and a heat exchanger outer pipe heat regenerator segment by a heat exchanger outer pipe separating component, the heat exchanger outer pipe air cooler segment is located at a high-pressure working medium inlet end, and the heat exchanger outer pipe heat regenerator segment is located at a high-pressure working medium outlet end. A heat exchanger low-pressure working medium inlet and a heat exchanger low-pressure working medium outlet which are communicated with the heat exchanger outer pipe heat regenerator segment are formed in the heat exchanger outer pipe heat regenerator segment, and the heat exchanger low-pressure working medium inlet is close to the high-pressure working medium outlet end. A heat exchanger water inlet end and a heat exchanger water outlet end communicated with the heat exchanger outer pipe air cooler segment are arranged on the heat exchanger outer pipe air cooler segment, and the heat exchanger water outlet end is close to the high-pressure working medium inlet end. An air cooler and a heat regenerator of the heat exchanger are of an integral structure, the casing type air cooler and the heat regenerator are manufactured to be in one-piece design, space can be effectively utilized, and the heat exchanger is mounted quite easily.

Description

technical field [0001] The invention relates to the field of heat pump hot water systems, in particular to a transcritical CO2 heat pump integrated heat exchanger, water tank and hot water integrated machine. Background technique [0002] Due to its non-toxic, non-destructive to the ozone layer, no greenhouse effect, and its good thermodynamic properties, CO2, a green and environmentally friendly natural refrigerant, has once again attracted people's attention. At the same time, because the exothermic process of the transcritical CO2 cycle is in the supercritical region, and there are characteristics such as temperature slip in the exothermic process, it is especially suitable for heat pump water heater systems. However, the efficiency of transcritical carbon dioxide heat pump systems is generally lower than that of conventional refrigerant systems. In order to improve system performance, it is generally necessary to add a regenerator to the transcritical carbon dioxide heat...

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Problems solved by technology

[0004] The present invention provides a transcritical CO2 heat pump integrated heat exchanger, water tank and hot water integrated machine to solve the problem that the air cooler and regenerator of the above heat pump water heater are two separate parts, which need to be passed through during installation and use. Technical problems with pipe connections

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