horizontal fire tube steam boiler is not working

From the regular inspection and inspection of a large number of data reports, horizontal fire tube steam boiler is not working users do not perform oxygen removal according to the requirements of GB1576-85, can not effectively control the water supply and boiler water indicators, the boiler operation mode is unreasonable, its own structural defects, Boiler maintenance can not keep up, etc., will lead to serious oxygen corrosion of the stressed parts of the heating surface of the boiler.

Boilers need emergency shutdown under what circumstances? Emergency shutdown means the immediate cessation of the supply of fuel and air to the boiler, to quickly stop its operation. During operation, in any case where the following circumstances, should take urgent measures to stop the boiler operation. When the water level below the water level gauge visible water level or higher than the maximum permissible level, namely boiler severe water shortages or severe filled with water. Main feedwater pipe, main steam pipe, when the reheat steam explosion. Superheater tube bursting, or blasting waterwall tubes can not be maintained when the drum water level. When knocking occurs in the furnace or the flue, the equipment was heavily damaged, and when the furnace fire. Rear of the boiler flue secondary combustion occurs, so that a sudden increase in exhaust gas temperature when abnormally. All suction blower or a rotary air preheater stops running. After the action is not safe seat, and steam pressure drops, the turbine steam temperature to the extent permitted time. Operating pressure exceeds the vapor pressure of the safety valve, safety valve does not operate at the same time, the exhaust steam space and a door, can not be opened when the two bypass. When all the water level gauge water level gauge damage and loss of all instructions. Other irresistible endanger the personal safety of the equipment when the accident occurred.

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Recently, China's 21th National Assembly HVAC academic year in "Swan City" - Sanmenxia City, Henan Province began. This annual meeting embodies the HVAC industry leading experts, technical design schools scientists, representatives of major HVAC manufacturers and industry media, nearly 20,000 HVAC colleagues attended the meeting.

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