During the operation of the boiler, the height of the water level has always been the focus of attention, because once the water level is higher than the safe water level, it will endanger the normal operation of the equipment. This phenomenon is also called a water-filled accident. Water-filled accidents can be divided into two situations, one is slight water-filled, and the other is severe water-filled, and the corresponding treatment methods are also different.
When the boiler is full of water, the first thing to do is to flush the water level gauge to check whether there is a false water level, and confirm whether it is slight water-filled or severe water-filled. Only after distinguishing these basic properties can targeted solutions be taken.
If it is only slightly full of water, the combustion should be weakened accordingly, and the automatic water supply regulator should be set to manual operation; at the same time, some water supply valves should be closed to weaken or stop water supply; then the pipe valve or bypass flue of the boiler economizer should be opened.
In addition, the drain valve should be opened to release some boiler water; the drain valve on the steam pipe and superheater should be opened to accelerate the draining. Normal operation can only be restored after the water level in the boiler drops to the normal water level line.
If the boiler is seriously flooded, the boiler must be stopped immediately and water supply must be stopped. The water must be drained quickly to speed up the drainage. Only after the water level returns to normal can the pipes, valves and other components be inspected and used to ensure the normal operation of the boiler.
