余热锅炉事故处理规则（Waste heat boiler accident handling rules）.docVIP

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余热锅炉事故处理规则（Waste heat boiler accident handling rules）.doc

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余热锅炉事故处理规则（Waste heat boiler accident handling rules）

余热锅炉事故处理规则（Waste heat boiler accident handling rules） 3.1 Water shortage phenomenon 3.1.1 The water level is below normal. 3.1.2 The alarm has a low water level signal. 3.1.3 The temperature of superheated steam rises or decreases when water shortage is serious. 3.1.4 The water supply flow is not normal less than the evaporation (the water cooling wall pipe or the coal tube rupture is more than the amount of evaporation). 3.2 Water shortage 3.2.1 The operator was negligent in monitoring inadequate or incorrect water levels. 3.2.2 The automatic water supply regulator failed to detect in time. 3.2.3 The water gauge indicates incorrect operation of the operator. 3.2.4 Drop the water supply pressure due to a failure of the pipe or water pump 3.2.5 Boiler discharge valve leakage or discharge without contact with the furnace. 3.2.6 The wall of water cooling wall tube or the wall of the economizer is broken. 3.2.7 Isolate the valve core from the water pipe. 3.3 Water shortage treatment 3.3.1 When the pressure of the boiler and water supply is normal, and the water level in the drum is lowered to normal water level (i.e., slight water shortage), the following measures should be adopted: A. conduct the control of the water level and the cleaning of the bubble water gauge to check if the instructions are correct. B. The water supply will be automatically changed to the on-site bypass to increase the water supply. 3.3.2 rainfall distribution on 10-12 If the water level in the drum is still low after the treatment, all water valves should be closed and the discharging valve and the discharge valve should be closed, such as the total valve of the discharging valve. 3.3.3 If the above measures are taken, the water level will continue to decline, and the minimum water level shall be allowed to report to the workshop or factory to reduce the boiler load gradually. We do If the water level of the drum is not visible due to the negligence of the operator, the water level cannot be de