Low-nitrogen condensing vacuum boiler
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- Description
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Vacuum boilers use high-purity deoxygenated water as the working fluid and operate under vacuum. The corresponding working fluid temperature is 29～98℃, so the hot water output temperature provided by the vacuum boiler is 15～90℃. The hot water output temperature provided by the vacuum boiler can be adjusted within a wide range to meet user needs, adjusting fuel consumption. Users can "pay as needed", saving operating costs.
During operation, the fuel combustion releases heat energy, causing the working fluid temperature to rise to the set temperature and producing saturated steam of the same temperature on the water surface. The steam pressure is lower than atmospheric pressure, often called negative pressure steam. A heat exchanger is installed in the steam; cold water is introduced into the heat exchanger. The cold water in the pipe is heated into hot water by the negative pressure steam outside the pipe and then transported to the water point; the water vapor outside the pipe is cooled and condensed into water droplets, returning to the water surface to be reheated, thus completing the entire cycle. The working fluid in the vacuum boiler only serves as a heat transfer medium and does not increase or decrease in quantity throughout the cycle. The working fluid in the vacuum boiler is specially treated and can be used for a long time.
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