How the water heater works

A complete home multi-function water heater consists of 2 main parts:

Manufacture the cold air part and heat the hot water part. But in fact, these two parts are closely related, inseparable, and must work at the same time. That is, while heating the hot water, the kitchen is cooled. Or heating the hot water while cooling the kitchen.

The structure of the water heater is mainly composed of four core components: compressor, condenser, expansion valve and evaporator.

The working process is as follows: the compressor compresses the recirculated low-pressure refrigerant and turns it into a high-temperature and high-pressure gas. The high-temperature and high-pressure refrigerant gas flows through the copper pipe wound around the water tank, and the heat is conducted to the water tank through the copper pipe to be cooled. The refrigerant that has come down becomes liquid under the continuous action of the pressure, and enters the evaporator after the expansion valve. Since the pressure of the evaporator suddenly drops, the liquid refrigerant rapidly evaporates into a gaseous state and absorbs a large amount of heat. At the same time, under the action of the fan, a large amount of air flows through the outer surface of the evaporator, and the energy in the air is absorbed by the evaporator, and the temperature of the air is rapidly lowered, and the air is discharged into the kitchen. The refrigerant that has absorbed a certain amount of energy is then returned to the compressor for the next cycle.

It can be seen from the above working principle that the working principle of the household multi-function water heater is similar to the air-conditioning principle. The reverse Karna principle is applied. By absorbing a large amount of low-temperature heat energy in the air, it is converted into high-temperature heat energy through compression of the compressor. In the water tank, heat the water. The whole process is a process of energy transfer (transfer from air to water), not a process of energy conversion, no heating of hot water by electric heating elements, or combustion of combustible gas to heat hot water.

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