1, regular washing effect.
Maintenance of evaporator usually adopt "wash effect" (also known as washing furnace) method, namely the cleaning dirt evaporation.
Different types of evaporator under different operation conditions of scale is different, so according to the production practice and experience, on a regular basis to wash effect.
The length of the wash effect cycle closely related to production intensity and the steam consumption.
So should pay special attention to the operation quality and prolong the wash cycle.
Wash effect method is divided into big wash and wash.
A. wash.
Is to wash the effect of water washing effect discharge method.
First of all, reduce the amount of admission, will effect the material liquid out, then add the condensate to liquid level, and improve the steam pressure, the boiling water to dissolve effect within the dirt, open the circulation pump irrigation pipes, when to reach the washing reault, the lower steam pressure, and water washing effect.
If the scale is serious, can be carried out two times of washing.
B. small washing.
Small washing is to wash the effect of water does not discharge method.
Easy scaling, above the evaporator heater in commonly before the overall fouling can be washed regularly, local scale layer to remove the heating chamber, to restore normal evaporation intensity.
Method is to reduce steam, the heating chamber and the circular tube material liquid out, and then the circular tube when the water reaches a certain level, to improve the steam pressure, and return to normal production, let wash water circulate in the effect of washing.
2, often observe the material feeding pump, a pump, forced circulation pump operating current and operating mode.
3, evaporator surrounding environment must keep clean without sundry, equipment of external thermal insulation layer is in good condition, if there are any damage, should be maintained, to reduce heat loss.
4, strict enforcement of large, medium and small repair plan, and remove the check repair on a regular basis and make records, accumulation of inspection equipment repair data, help to strengthen technical improvement.
5, evaporator, measuring and safety accessories, thermometer, pressure gauge, vacuum gauge and safety must be calibrated regularly, require accurate and reliable, to ensure proper operation control and safety operation of the evaporator.
