Will the difference between steam and water weight be smaller when the boiler working pressure is lower?

As an indispensable energy supply equipment for the development of China's industry and national economy, boilers are used in all industries. In the process of boiler operation, users often encounter questions such as whether the lower the boiler working pressure is, the smaller the steam-water gravity difference is. Will the difference between steam and water weight be smaller when the boiler working pressure is lower?

The lower the working pressure of the boiler, the smaller the difference of steam-water gravity. The main working principle of oil-fired gas boiler is the thermal equipment that uses the heat energy released after fuel combustion or the waste heat in industrial production to transfer to the water in the container, so that the water can reach the required temperature or steam at a certain pressure. The boiler "pot" and "furnace" are carried out at the same time.

After the water enters the boiler, the heated surface of the boiler transfers the absorbed heat to the water in the steam-water system, so that the water can be heated into hot water with a certain temperature and pressure or generate steam, which can be led out for application. In the part of the combustion equipment, the fuel burns continuously to release heat, and the high-temperature flue gas generated by the combustion transmits the heat to the heating surface of the boiler, while its temperature gradually decreases, and finally it is discharged from the chimney.

With the increase of boiler pressure, the boiling point of boiler water is higher, the surface tension of boiler water is smaller, and it is easier for boiler water to form small water droplets and be taken away when evaporating. At the same time, with the increase of pressure, the weight difference between steam and water decreases, the separation of steam and water is difficult, and steam is easy to carry water droplets. Therefore, the difference between steam and water weight will not be smaller when the boiler working pressure is lower.

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