First, how to deal with the sewage of steam boilers:
Boiler sewage discharge is also an indicator for considering steam boilers. Now it is said that environmental protection, sewage discharge should be called environmental protection within a certain range. The sewage discharge of steam boilers needs to be discharged in small rows, that is to say, the number of sewage discharges is more, but the amount of drainage is controlled within a small range, which can ensure that the steam supply is not affected, and the quality of the boiler water is always controlled. Within the standard range, without large fluctuations, this is very beneficial for boiler maintenance.
The steam boiler sewage drainage should have the same time interval for each sewage discharge, so that the pot water quality is always kept in equilibrium.
Second, how to prevent corrosion of steam boilers:
To prevent problems, we must analyze them from the root of the problem. Therefore, the corrosion of steam boilers should start from the factors that cause corrosion and find a solution.
From the principle of corrosion caused by steam boilers is an electrochemical corrosion. The surface of the boiler absorbs a layer of electrolyte solution film formed by the moisture and CO2 in the air, or forms a myriad of tiny primary batteries on the surface of the metal in weak acid and neutral dissolution. Iron acts as the negative electrode, and the lost electrons are oxidized to Fe2+. The upper part dissolves oxygen in the water to obtain electrons to be reduced. The structure of the corrosive material is relatively loose, and the diffusion of metal ions cannot be blocked, and the corrosion process will continue.
Third, steam electric boiler maintenance:
1. When maintaining the boiler, the power must be cut off and the pressure must be relieved.
2. The burner should be removed from the boiler body every two months to remove foreign matter such as carbon deposits and dust. The photocell is wiped once a month, and the fuel filter should always be clean and filtered; carefully clean the filter inside the pump and do not damage the gasket. The burner must not be idling without oil to avoid damage to the pump.
3. The water level gauge should be kept clean at all times, and the cleaning valve should be opened once a day to ensure the water level is clear.
4. The safety valve is pulled once a day to prevent rust failure.
5. When the boiler stops running for a long time, the power should be cut off and the maintenance work should be done:
(1), dry maintenance, release the furnace water after stopping the furnace, flush the dirt in the furnace, dry the pot with a burner micro-fire (burning time should not be too long, so as not to damage the boiler), then all the boiler gas After cleaning, close all pipe valves and check every three months.
(2), wet maintenance, suitable for boilers with a shutdown period of no more than one month, after the furnace is shut down, the boiler water is discharged, drained clean and filled with clean water, cut off the power supply, and the valve is closed.
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