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How to maintain the heat conducting oil furnace after it is out of service

Time: January 8, 2020 14:46:59 Author: Administrator
(1) Stop the heat carrier furnace within one month. When the heat carrier in the furnace drops below 100 ℃, stop the circulating pump, close the inlet and outlet valves of heat carrier and the valves connected with low-level storage tank and high-level expansion tank. If the vent pipe of expansion tank is directly connected to the atmosphere, it is better to close it to reduce the contact between heat carrier and oxygen. Remove the soot outside the furnace body to avoid the corrosion of the pressure parts of the boiler at the ash accumulation place.
 
(2) Stop the organic heat carrier furnace for a long time, put all the heat carriers into the storage tank after the furnace body is cooled, and isolate the drain valve and vent valve of the storage tank after all of them are closed. Remove the coke scale in the heating surface tube of the organic heat carrier furnace, dry the water in the system with compressed air, and then isolate all the atmospheric parts, and then inject nitrogen into the vent pipe interface of the expansion tank. Keep the nitrogen pressure in the system at 0.05Mpa ~ 0.1MPa
 
(3) The outer wall (flue gas side) of the boiler shall be thoroughly cleaned of ash