Due to the characteristics of large working pressure, high medium temperature and complex operating conditions, steam boilers are prone to various accidents in the process of using the boiler. Especially in China, accidents occur frequently due to the demand for heating. Therefore, it is necessary to conduct a systematic analysis of the common accidents generated by the boiler during operation, conduct regular maintenance and inspection of the boiler, and do a good job in the corresponding preventive treatment methods to improve the reliability of the boiler.
1. Overview of boiler full water accidents. The water filling accident refers to the phenomenon that the safe operation of the boiler is threatened due to the high water level than the highest safe water level during the operation of the boiler. There are two types of flooding accidents: severe flooding and slight flooding. The occurrence of boiler water filling accident will lead to a large amount of steam with water, which is very likely to cause water hammer in the steam pipeline, which will reduce the quality of steam, affect the normal steam supply, and even cause fouling of superheater tubes and damage to steam equipment.
2. Overview of boiler water shortage accidents. Water shortage accident refers to the phenomenon that the water level of the boiler is lower than the minimum safe water level during operation, which threatens the safe operation of the boiler. Water shortage accidents are classified as minor water shortages and severe water shortages. In addition, due to the lack of water, the dry burning of the steel plate of the boiler causes it to overheat, which reduces the strength; After the temperature of the steel plate is overheated, there is a great temperature difference between it and the feed water temperature, and the steel plate part that first contacts the water shrinks sharply due to the cold, resulting in the cracking of the steel plate, coupled with the pressure of steam, the crack part gradually becomes a large breach, and the steam flows out from the breach, causing the boiler to enter the water, which is easy to lead to the boiler accident.
3. The first accident of the boiler furnace. Most boilers are fueled by flammable substances such as gas, oil and pulverized coal, and if the operation is not done properly in the process of extinguishing and ignition, the boiler will blow up the chamber and the furnace fire will erupt and burn people.
Simulated steam boiler training bench QY-ZLR44
The training bench has a closed water circuit consisting of a feed tank, a pump and a transparent boiler model with a burner. The training bench is equipped with industrial control elements for monitoring water level and pressure, simulating the operation of the burner, and can simulate and set common typical faults;