How to maintain the boiler during operation

How to maintain the boiler during operation

⑴ Boiler feedwater and monitoring of boiler water

The feed water and boiler water quality of the boiler should comply with the provisions of GB/T1576-2008 "Industrial Boiler Water Quality" standard. And regularly take samples for testing. The quantity and frequency of discharge are determined by the laboratory personnel. Detailed records should be kept for laboratory testing and pollution discharge.

⑵ Monitoring of rotating machinery

For water pumps, fans, oil pumps, etc., a one look, two listen, and three touch method should be used for monitoring. If any abnormal phenomenon is found, take measures to handle it. When it is important to stop the furnace for maintenance, do not be careless.

Oil level monitoring of daily fuel tanks

If there is no automatic oil level control device, the oil level should be checked regularly. If the oil level is too low to be used for 2 hours, please notify the fuel personnel in advance to inject new fuel.

Water level control of soft water tank

Generally, automatic control is used

Operation status of water treatment equipment

Regularly check if the ion exchange agent in the water treatment equipment is ineffective, or perform regular backwashing.

(6) Smoke exhaust temperature monitoring

Under normal circumstances, the exhaust temperature of a new boiler is generally lower, and it will gradually increase with the increase of operating time. If the change is found to be too large and exceeds 20 ℃ (referring to the difference), the furnace should be shut down and cleaned at an appropriate time. If this phenomenon occurs frequently, it is necessary to check whether the combustion system is functioning properly. If the oil pressure is too low, the oil temperature is too low, resulting in poor atomization, or the air oil ratio is incorrect, resulting in poor oil gas mixing, oxygen deficiency combustion, and carbon deposition.

In addition, for dry back boilers, if the exhaust gas temperature suddenly increases, there is a possibility of smoke leakage from the fire wall between the second and third return circuits of the rear smoke box, and the boiler needs to be shut down for repair.

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