Introduction to the working principle of vacuum heating furnace

The working principle of the vacuum heating furnace system is actually very simple. It is specifically composed of the furnace body and other auxiliary machinery and equipment. The basic principle is: the hot gas formed by the combustion of hot flue gas is applied, and the heat is conducted by the radiation of the fire and the smoke tube. And the pipe medium-water absorbs and forms steam, the steam boils, and the heat transfer is transferred to the heating medium to be condensed into water. The gravity of the water drops back to the original position, and then the steam is heated. The continuous phase change cycle uses "evaporation condensation and evaporation condensation" to transfer heat to the upper part of the vacuum chamber of the heat exchange medium to be heated in an indirect manner; when the process reaches a certain equilibrium mode, it can be maintained in a negative pressure mode less than the local atmosphere In a furnace with stable pressure. Vacuum heating furnace has low energy consumption, high efficiency and high degree of automation due to its low-cost vacuum heating furnace, vacuum heating furnace has become an ideal product, and traditional heating furnaces now have no great advantages.

Vacuum heating furnace has many advantages: safety, mainly because its casing pressure is less than atmospheric pressure, no explosion, the danger of its operation mode is in a closed environment, the fouling phenomenon is not obvious; energy saving effect is good; small size and light weight , Convenient to transfer; adopt automatic control method; wide adaptability. After analysis, the disadvantage is that the vacuum heating furnace and auxiliary parts, valves and many types of instruments, no matter which part of the problem, may cause errors.

The vacuum heating furnace will have the following problems: the vacuum that occurs during operation cannot be maintained, the furnace body is water, the vacuum valve does not work, the vacuum valve leaks, and the furnace pressure is unstable. This is also a problem we need to solve.

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Introduction to the working principle of vacuum heating furnace

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