Air-conditioner hot-water composite machine

Abstract

The invention discloses an air-conditioning / water-heating compound machine which comrprises (1) a circulation loop for an air-conditioning system, consisting of a first compressor, a first heat exchanger, a second heat exchanger and a first throttle mechanism; and (2) a circulation loop for a water-heating system, consisting of a second compressor, a third heat exchanger, a fourth heat exchanger and a second throttle mechanism. The second heat exchanger and the third heat exchanger form a heat-transfer connection. The fourth heat exchanger and a hot-water pipeline form a water-passage connection. The hot-water pipeline is provided thereon with a water inlet and a water outlet. The invention can reduce energy consumption and has simple structure.

Description

technical field [0001] The invention relates to the fields of air conditioners and hot water supply, in particular to an air conditioner and hot water composite machine. Background technique [0002] At present, in homes, schools, hotels, etc., the air conditioners and domestic hot water devices used are two separate devices, and the purchase, use, and maintenance costs are high. Moreover, when the air conditioner is refrigerated, a large amount of condensation heat is released into the atmosphere. On the other hand, heating domestic hot water through water heaters or boilers consumes a lot of high-grade energy, which not only causes energy waste, but also causes environmental thermal pollution. After retrieval, the existing technology of using the condensation heat of the air conditioner to heat domestic hot water is mainly to connect a water-cooled heat exchanger in series between the compressor exhaust and the heat exchanger, such as patent numbers 200410023767.2 and 0326...

AI Technical Summary

Problems solved by technology

[0003] 1. After adding a heat exchanger to the system pipeline, there will be a loss of refrigerant resistance, which will affect the cooling or heating efficiency;

[0004] 2. Use one compressor refrigeration system to realize refrigeration, heating, and hot water heating. The working conditions vary greatly, and it is impossible to take care of them at the same time.

[0005] The efficiency under various working conditions leads to low overall efficiency and high failure rate;

[0006] 3. As the temperature of hot water rises, the condensation temperature of the system rises. In order to ensure the cooling effect, it is still necessary to start the outdoor heat exchanger to dissipate heat, resulting in that the condensation heat can only be partially recycled;

[0007] 4. These technologies only recover the condensing heat of the air conditioner to produce hot water, and cannot fully recover the cooling capacity produced by the heat pump water heater unit to improve the cooling effect;

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