The working principle of vacuum furnace

         The working principle of vacuum furnace

  Vacuum boiler is in a closed furnace internal form a negative pressure of vacuum, filling heat medium water in the body. By burning heating heat medium water or any other way, again by heat medium water evaporation, condensation and heat exchanger, again by heat exchanger to heat to heat water.
Vacuum boiler heat conversion signal:
Oil, natural gas, gas, electricity - > combustion heat (electric conversion) - > heat medium water - > after boiling steam condensation heat transfer of -- -- -- -- > > heat exchanger heat transfer > water
 Vacuum boiler working principle: using the characteristics of low water under the condition of low boiling point, rapid heating sealing furnace heat medium filled in water, high temperature steam, the heat medium water boiling evaporating out water vapor condenses on the heat exchange tube heat exchange tube in cold water, hot water supply.
Standard sea level atmospheric pressure: 1.013 x 105 pa = 101.3 KPa, the water's boiling point is 100 ℃; The higher the altitude, the lower atmospheric pressure, the boiling point is reduced:
The Tibetan plateau: the average altitude of 4000 m, atmospheric pressure of 62 kpa, at this time the boiling point of water is 87 ℃;
Mount Everest: up to 8848 m, 33 kpa atmospheric pressure, the boiling point is 71 ℃;
 Vacuum boiler by pumping air into vacuum state, almost no air to form a low pressure environment, and then use water (less than atmospheric pressure) under low pressure low temperature steam boiling, soda condensation heat transfer way will work the principle of heat output.
 Vacuum heat medium boiler water is after deoxidization, descaling and other special processing of high pure water, a filling to complete before they go out, when used within the unit closed cycle (vaporization and condensation and evaporation), does not increase, not decrease, in unit service life does not need to supplement or replace.
 Therefore, the vacuum inside the boiler furnace will never scale, corrosion, normal service life can reach more than 20 years, far more than ordinary hot water boiler the service life of 10 years or so.