Emergency Response Plan for Boiler Operator Positions
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Emergency Plan for Accidents in the Boiler Operator Position. Nature: A lack of water in the boiler is a serious man-made production accident. Hazards: Severe water shortage in the boiler can lead to tube rupture and deformation. If handled incorrectly, adding a large amount of water to the boiler when it is short of water can lead to serious consequences, even causing the boiler to explode and resulting in casualties and property damage. There are two types of water shortage in boilers: 1. Mild water shortage: This occurs when the water level disappears from inside the glass tube (plate), but the level can be brought back to appear on the gauge using the \"call for water\" method; this is referred to as a mild water shortage. Handling minor water shortage incidents: In such cases, the amount of water added can be increased until the normal water level is reached. 2. Severe water shortage: When, even after using the \"water calling method,\" the water level still does not appear inside the glass tube (plate), it is referred to as a severe water shortage. Handling severe water shortage incidents: When a severe water shortage in the boiler is detected, the boiler should be shut down immediately, and it is strictly prohibited to add water to the boiler to avoid serious accidents. Once the furnace temperature has dropped below 100ºC, open the water inlet valve and add water slowly until one-third of the gauge indicates water level before starting the furnace. Boiler shop
Full-water accident: Symptoms of a full-water accident: 1. The water level is above the maximum level mark, and the water level alarm sends out a high-level alarm signal； 2. The water supply volume is abnormally higher than the steam flow rate. In severe cases, water hammer occurs in the steam pipes. Reasons for full water level: 1. Inadequate monitoring of the water level by operators, incorrect adjustments, or the formation of a false water level ； 2. The water level alarm is malfunctioning, and the automatic water supply control system is also malfunctioning. Methods for dealing with a full-water accident: 1. Immediately flush the water level gauge; if a full-water accident is confirmed, quickly close the feedwater valve and open the economizer recirculation valve or the bypass flue to prevent damage to the economizer. 2. Open the drain valve to increase drainage, but the water release time should not exceed 30 seconds (for one valve). When releasing water, pay close attention to the water level in the gauge to prevent water shortage accidents caused by excessive discharge. 3. Close the air damper to reduce fuel and air supply, thereby weakening combustion. 4. Open the drain valves on the steam cylinders and steam main pipes. 5. Once the water level returns to normal, resume normal combustion and bring the system back into normal operation.