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How to prevent boiler water from vaporizing in gas-fired hot water boiler

2021-05-31 09:04    page view:

Guide: When the gas-fired hot water boiler is in operation, the water in the boiler will easily cause the boiler water to vaporize during the period when the circulating pump is running abnormally and when the circulating pump is stopped. The hot water circulation network may cause "air lock" in the lighter, or may cause the boiler heating surface tube to burn or burst, and in severe cases, it may cause a vicious boiler explosion accident. Therefore, the hot water boiler must be prevented from vaporizing.

When the gas-fired hot water boiler is in operation, the water in the boiler will easily cause the boiler water to vaporize during the period when the circulating pump is running abnormally and when the circulating pump is stopped. The hot water circulation network may cause "air lock" in the lighter, or may cause the boiler heating surface tube to burn or burst, and in severe cases, it may cause a vicious boiler explosion accident. Therefore, the hot water boiler must be prevented from vaporizing.

  For the local vaporization in the gas-fired hot water boiler, it is mainly ensured from the structural design to make the water circulation of the boiler reliable. When the hot water boiler pressurizes and vaporizes due to sudden pump stop, power outage or problems in the entire hot water circulation system, the generated steam can not affect the circulation of the hot water system and discharge steam in time. It is usually on the top of the boiler to save energy. The upper header of the collector and the highest point of the hot water pipeline are provided with a steam collecting tank.

gas hot water boiler

  When the pump is suddenly stopped or the power is cut off, the boiler blows and the induced draft fan stops working. At this time, the furnace door should be opened immediately to weaken the combustion, lower the furnace temperature, and close the valve at the same time, and then slowly open the exhaust valve on the gas collecting pipe, Cold water can be passed into the boiler, so that anyone will be discharged through the hot water boiler and the gas collecting tank to prevent the boiler water from vaporizing.

During normal operation, if the boiler outlet water temperature is found to be higher than the normal temperature, or the pressure is found to increase, the boiler water may vaporize and the hot water circulation system may be blocked. At this time, the exhaust gas should be exhausted through the gas collector.

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