What is a vacuum hot water boiler?

Answer: We call it a vacuum hot water boiler, also called a vacuum phase change hot water boiler. That is, when working normally, the medium pressure inside the boiler is lower than atmospheric pressure, and the cold water is heated by phase change heat.

Second, the structure of the vacuum hot water boiler principle?

Answer: The furnace body of the vacuum hot water boiler is divided into two parts, of which the structure of the lower part is similar to that of the three-return wet shell steam boiler, that is, the heating surface of the electrode heating boiler composed of the furnace bile and flue; The upper half is the vacuum chamber (negative pressure vapor chamber), which is equipped with a tubular gas-water heat exchanger to heat the circulating water flowing through the heat exchanger.

What is a vacuum?

The vacuum state does not mean that the pressure is zero, as long as it is lower than the external air pressure, it can be called "vacuum".

Fourth, why should the heat medium water in the vacuum hot water boiler be heated by vacuum?

The fixed property of water is that the lower the pressure, the lower the boiling point. Due to the low air pressure, water on the plateau boils below 100 ° C. In this way, in the vacuum state of the inlet electrode boiler, the heat medium water is easy to boil and vaporize, and the negative pressure steam generated after vaporization can quickly heat the heat exchanger and transfer the heat.