First, the operation process of the hot water boiler
1. Wear the specified labor supplies before work, check the boiler water supply, drainage, gas supply pipe fittings, safety valves, pressure gauges, water level gauges, whether it is flexible, and confirm the safety before starting work.
2. The water level of the hot water boiler does not exceed two-thirds of the water level, and the low water level of the water level is not less than one-third. Usually, it stays at 1/2 or higher.
3. When it is necessary to operate the water with both hands, first open the sluice first, then open the tank valve with the other hand, and the water naturally enters the furnace. When you are resting, you should first block the valve and then close the water gate. When you switch the valve, keep your face away from the front to avoid accidents caused by soda.
4. During hot water boiler operation, each component needs to be inspected and the pressure and water level observed. If overpressure or water shortage, it is necessary to stop the furnace, put the ash in front, and inject a small amount of cold water, but do not let a lot of cold water to avoid accidents. In operation, the furnace worker does not allow to leave the post without permission. When working in night shifts, they are not allowed to sleep, and they are not allowed to sleep to avoid accidents.
5, the conventional piezoelectric hot water boiler sewage, each shift change, the water level should be properly adjusted before the sewage, slightly higher 2 / 3, and then sewage.
6. The water level gauge is flushed once per shift. When flushing, according to the demarcation procedure, first block the water valve, open the drain valve, and flush the steam valve. At this point, pay attention to whether the steam is blocked. Then block the steam valve and notice if the water is clogged. When flushing the water valve, there is water and steam for a little longer to ensure there is no false water level.
7. Inspect coal used in hot water boilers to prevent explosives such as detonators from being thrown into the furnace to prevent explosion hazards.
8. Always check the temperature of the mechanical equipment and electrical enclosure during operation. If the machine malfunctions or the hair burns more than 60 degrees, stop maintenance immediately. When the ordinary piezoelectric hot water boiler is in normal operation, the steam pressure shall not exceed the specified working pressure, and the safety valve shall be inspected once a week.
The second is to solve the problem of water shortage in hot water boilers
1. Water shortage in hot water boiler
(1) The water level is lower than the low safe water level line, or the water level is not visible, the water level gauge glass tube (plate) is white;
(2) the two-color water level gauge displays all gas phase indication colors (3) the high and low water level alarm low water level alarm ;
(4) The low water level interlocking device stops the blower, the induced draft fan and the grate reducer motor;
(5) the superheater steam temperature rises sharply, higher than the normal outlet steam temperature;
(6) the boiler exhaust gas temperature rises ;
(7) the water supply flow rate is less than the steam flow. If there is water shortage due to the rupture of the furnace tube or the economizer tube, the opposite phenomenon will occur;
(8) When the water shortage is serious, the burnt smell can be heard;
(9) When the water shortage is serious, the furnace door is You can see the red water wall tube;
(10) When the water shortage is serious, the tube may rupture. At this point, there may be blasting, and steam and smoke will come from the door and fire door.
