Air conditioner hot water unit

Abstract

The invention relates to an air conditioner hot water unit. The air conditioner hot water unit comprises an air-liquid separator, a compressor, a first air conditioner side refrigerant electromagnetic valve, a four-way reversing valve, an air-refrigerant heat exchanger, an air-refrigerant heat exchanger side electronic expansion valve, a water-refrigerant heat exchanger side electronic expansion valve, a water-refrigerant heat exchanger, a hot water side refrigerant electromagnetic valve, a hot water heat exchanger, a second refrigerant transferring control assembly, a liquid spraying electromagnetic valve, a liquid spraying capillary tube and a first refrigerant transferring control assembly, wherein the air-liquid separator, the compressor, the first air conditioner side refrigerant electromagnetic valve, the four-way reversing valve, the air-refrigerant heat exchanger, the air-refrigerant heat exchanger side electronic expansion valve, the water-refrigerant heat exchanger side electronic expansion valve and the water-refrigerant heat exchanger are connected in series. The hot water side refrigerant electromagnetic valve is connected between the compressor and the first air conditioner side refrigerant electromagnetic valve in parallel, the hot water heat exchanger is connected between the air-refrigerant heat exchanger side electronic expansion valve and the water-refrigerant heat exchanger side electronic expansion valve in parallel, and the second refrigerant transferring control assembly is connected between the water-refrigerant heat exchanger side electronic expansion valve and the water-refrigerant heat exchanger in parallel. The liquid spraying capillary tube is connected between the air-refrigerant heat exchanger side electronic expansion valve and the water-refrigerant heat exchanger side electronic expansion valve, and the liquid spraying capillary tube is connected between the four-way reversing valve and the air-liquid separator in parallel. The first refrigerant transferring control assembly is connected to a second connection port, a third connection port and a fourth connection port of the four-way reversing valve.

Description

technical field [0001] The invention relates to the field of air-conditioning and hot-water unit products, in particular to an air-conditioning and hot-water unit. Background technique [0002] For an air-conditioning hot water system composed of an air-refrigerant heat exchanger and a water-refrigerant heat exchanger, due to the small internal volume of the water-refrigerant heat exchanger, when it is used as a condenser, the system requires relatively less refrigerant, which requires The liquid receiver is designed on the outlet pipeline of the small-capacity heat exchanger, but when the water-refrigerant heat exchanger and the hot water heat exchanger are connected in parallel in the system, if two liquid receivers are designed to make the cooling during heating and hot water heating The dose is not enough. In addition, there are three heat exchangers in the system, which also makes the refrigerant management very complicated. At present, some systems are in the hot wate...

AI Technical Summary

Problems solved by technology

[0002] For the air-conditioning hot water system composed of air-refrigerant heat exchanger and water-refrigerant heat exchanger, due to the small internal volume of the water-refrigerant heat exchanger, when it is used as In the case of a condenser, the refrigerant required by the system is relatively small, so it is necessary to design a liquid receiver on the outlet pipeline of the small-capacity heat exchanger, but when the water-refrigerant heat exchanger and the hot water heat exchanger are connected in parallel in the system, if the design Two liquid receivers make insufficient refrigerant for heating and hot water at the same time

In addition, there are three heat exchangers in the system, which also makes the refrigerant management very complicated. At present, some systems are in the hot water heating or heat recovery mode alone, because the refrigerant inside the heat exchanger that does not participate in the work cannot come out to participate in the cycle work. Or the high pressure refrigerant needs to be bypassed to help get more refrigerant to work, both of these designs will result in the system running less energy efficiently and the system not running at its optimum

Images