Industrial boilers are commonly used for drying, providing hot water, and can also be used to generate electricity. Industrial boilers are a very useful energy conversion device. Boiler and auxiliary equipment after long-term use will be damaged more or less. We must fix problems in time and conduct regular checks to ensure the safety of boiler use. Common boiler failures include overpressure, steam and water conduction, furnace tube explosion, water shortage… Please read with KS Boiler to learn how to overcome common problems when using boilers!
Instructions for handling common problems in industrial boilers
Overpressure phenomenon of industrial boiler
Boilers operating under pressure can cause deformation of parts and damage to joints. It can even cause a fire accident in serious cases. The main cause of overpressure occurs because the operator increases the working pressure or does not regularly monitor the operation of the boiler. Sometimes the pressure gauge and safety valve can also be the cause of overpressure because the pressure gauge and safety valve are damaged, showing the wrong reading. It is necessary to strengthen the monitoring system and safety accessories for the furnace workers. As the pressure continues to increase, the burner flame must be rapidly reduced. Stop the air supply and blow, reduce the draft caused, and cut off the main valve after the flame goes out.
Boiling phenomenon of industrial boilers
When steam and water coexist in the boiler, the water level of the water level gauge fluctuates sharply. Boiler bubbling, a large amount of water is contained in the steam, and the temperature of the steam drops. In severe cases, water splashes occur in pipes. The main cause of this situation is due to poor water quality, too high salt content or excessive load on the boiler… When it is found that steam and water exist in parallel, it is necessary to increase the treatment of the substance. volume of water and enhance continuous discharge of wastewater. .
Lack of feed water for industrial boilers
Lack of water supply to the boiler will cause deformation and damage to pressure components, explosion of furnace pipes. At that time, if handled improperly, boiler explosion may occur. When detecting that the furnace is short of water, it is necessary to add water after taking emergency shutdown measures. The causes of water shortage accidents are mostly related to the operator’s negligence and incorrect operation, or turning off the water level meter due to no water discharge measures.
Boiler with furnace tube explosion
When the furnace tube explodes, there is an explosion and the sound of steam jets, and the water level and steam pressure drop. When this condition is detected, emergency shutdown measures must be taken. The common cause of this condition is poor water quality that causes the furnace pipes to scale or corrode. In addition, it may be due to design errors, insufficient material strength and poor welding quality that cause pipe explosion accidents.
What items should be noted for inspection and maintenance of boilers?
– Check whether the boiler is corroded inside and outside the boiler’s welded steel plate. If there is a serious defect, it must be repaired immediately. If not serious can be left to repair when the furnace stops working. If a suspicious point is detected, which does not affect production safety, it should be recorded for future reference.
– Check if the exhaust fan guide shaft is normal, and the wear degree of the impeller and housing. If necessary, remove the oven wall, cover, and moisture barrier for thorough inspection. If a part is found to be severely damaged, it must be repaired, and at the same time, provide the inspection results and repair conditions.
– Check the smoke box is closed tightly or not, the top of the chimney is not leaking. If there is a leak, it must be repaired immediately. If dust accumulates in the chimney, it should be removed. If no dust accumulates, it is possible to extend the opening time in the future.
KS – Boiler specializes in manufacturing, installing and maintaining industrial boilers:
Fanpage Facebook: https://www.facebook.com/ksboilercompany
Hotline: 1900 055 595
Office address: No. 9A, Street 73, Tan Quy Dong Residential Area, Tan Phong Ward, District 7, HCM.
Factory address: E2/52 B1 Da Phuoc, Hamlet 5, Binh Chanh District, HCM.