How did the gas in the heating come from? What is the working principle of heating?

Because the heating circulating pump continuously supplies water to the pipeline for the first time, the gas is gradually compressed due to water pressure and stays at the heating end. Of course, the heating end will not generate thermal radiation. In the process of gradually compressing the air pressure, the air pressure at the end is greater than the primary water supply pressure, which will produce a whirlwind reaction force, and the hot water may have gas during the operation of the system. These gases will gradually enter the pipe network with the operation of hot water. If there is gas in the heating pipe network, it will seriously affect the hot water circulation. So for heating, it is generally necessary to deflate.

There are two heating methods: central heating and radiator. Floor heating circulates heat through pipes. If there is air in the pipeline, the air in the pipeline will be discharged slowly through the flow of water in the pipeline. Although the air in the radiator can be discharged slowly, there is too much air in the heating pipe because there is space in the radiator, which will lead to abnormal circulation of heating and affect heating. Therefore, generally speaking, in the early stage of heating, in order to quickly achieve the effect of heating, special deflation operation will be carried out. This is the problem. If we don't let the air out of the heater,

Why is it not hot? First, the thermal conductivity of gas itself is much lower than that of water, and its thermal conductivity is poor. Second, air resistance will be formed after gas collection, and water will not circulate in this position, and it will definitely not be hot. I have been engaged in HVAC home furnishing industry 10 years. I think it is difficult for the heating to disappear automatically without deflation. Can only play a counterproductive role in the heating system, affecting heating. Regarding the gas in the heating water, I will talk about it in combination with my work experience.

In distribution manifolds and other heating piping equipment, some air will accumulate on the tops or pipes of these equipment. Excessive air accumulation will form air blockage, resulting in fluid isolation, leading to poor heating, poor heat dissipation, or blocked circulation. In addition, there is a lot of air in the heating pipeline equipment, and the pipeline of the heating furnace is relatively low. The farthest radiator has the highest level, and there is no automatic exhaust valve installed, thus forming a slope. When adding water, you must loosen the air plug screw on the radiator before adding water.