Air conditioner and water heater all-in-one machine

Abstract

An air conditioner and water heater all-in-one machine comprises plate-fin reverse flow thin passage heat exchanger, a throttling device, a compressor, a four-way electronic valve, an air side heat exchanging device, a circulating pump, a three-way electronic valve I, an air conditioner terminal electronic valve, a three-way electronic valve II, an air conditioner terminal and a hot water circulating tank. The fluid inlet in one side of the plate-fin reverse flow thin passage heat exchanger is connected with the four-way electronic valve, and the fluid outlet of the plate-fin reverse flow thin passage heat exchanger is connected with the throttling device. The fluid outlet in the other side of the plate-fin reverse flow thin passage heat exchanger is connected with the circulating pump which is connected with the three-way electronic valve I. The three-way electronic valve I is connected with the air conditioner terminal electronic valve and the hot water circulating tank. The air conditioner terminal electronic valve is connected with the air conditioner terminal. The air conditioner terminal is connected with the three-way electronic valve II which is connected with the fluid inlet in the other side of the plate-fin reverse flow thin passage heat exchanger and the hot water circulating tank. The hot water circulating tank is connected with a water inlet electronic valve. The air conditioner and water heater all-in-one machine is simple in structure, low in investment and high in heating and refrigerating efficiency.

Description

technical field [0001] The invention relates to an air conditioner and hot water integrated machine. Background technique [0002] With the advancement of science and technology and the development of the economy, people's requirements for life have been further improved, especially for the living space environment. Paying attention to suitable living temperature environment and suitable living humidity environment, air conditioners have become necessary household appliances for life, but they are also household appliances with the highest energy consumption. According to relevant data, my country's building energy consumption has reached about 35% of GDP energy consumption, which has closely followed the relevant proportion of developed countries, while the energy consumption of air conditioning and domestic hot water accounts for more than 75% of building energy consumption. Obviously, the energy consumption of air conditioning It is very huge, which has a huge impact on e...

AI Technical Summary

Problems solved by technology

However, the advantages of this microchannel have not been fully utilized, because it only uses cross-flow heat exchange, and the refrigerant exchanges heat with air.

General scientific and technological workers know that the efficiency of counter-current heat transfer is higher than that of cross-flow heat transfer, because the temperature difference is the driving force and source of heat transfer, and the average temperature difference of counter-current heat transfer is the largest, and the temperature of the fluid to be exchanged is It can be very close to the temperature at which the heat exchange fluid enters, as long as there is enough flow, the end difference can tend to zero. This heat transfer method can minimize the end difference, while cross flow, forward flow, cross or other mixed flow heat transfer methods cannot To minimize the end difference, therefore, general technicians try to use countercurrent heat exchange to improve their efficiency (unless the countercurrent heat exchange method cannot be used in the refrigeration cycle like a shell-and-tube heat exchanger)

The casing heat exchanger is a pure countercurrent heat exchange method, so many existing air source water heaters use casing heat exchangers as their condensers. However, casing heat exchangers have a small heat transfer area within a limited volume. The process is also too long, which increases the flow resistance of the refrigerant. If the resistance is overcome to accelerate the cycle of the refrigerant, it needs to consume electric energy

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