First, electrically heated thermal oil furnace before ignition preparation:

(1), the residual moisture in the heat carrier furnace has been drained and blown dry, no debris in the furnace all holes have been closed, the use of filler in line with the requirements of the heat carrier medium.
(2), all the safety accessories of the protective device has been installed and accepted.

Second, electrically heated thermal oil furnace media assay and cold cycle:

(1), organic heat carrier furnace used in the heat carrier must be qualified products, the use of temperature must be consistent with the heating conditions. Boiler outlet temperature is at least 30-40 ℃ lower than the permissible use of heat carrier temperature, otherwise decomposition will occur, early failure. The furnace selection of organic heat carriers for the "YD-320" type, at 20 ℃ when its performance parameters are as follows:

       1, density 1022kg/m3;
       2, viscosity 20 centistokes;
       3, thermal conductivity 0.4342KJ/m.h ℃;
       4, Specific heat 1.7899KJ/Kg ℃;
       5, Prandtl number 229.5;
       6, acid value 0.02mgKOH/g;
       7, residual carbon ≤ 0.05w%;
       8, Gum 53mg/100ml;
       9、Total sulfur content 0.15%;
       10、Maximum allowable oil film temperature 330℃;
       11、Appearance is light yellow transparent liquid;
       12、Toxicity is low toxicity;
       13, flash point ≥ 110 ℃;

(2), electrically heated heat transfer oil furnace oil filling: the qualified heat carrier with the oil injection pump to the boiler oil injection, in the oil injection pump to the system when the oil injection, should be checked again in the body of the furnace all the valves of the heating system at the same time one by one to open the drain valve to remove the air until there is a flow of oil when the oil flow is closed when the oil appears on the high expansion tank level meter to stop the injection of oil and then start the circulating pump for the cold oil cycle.

(3), cold oil circulation: the purpose of cold oil circulation is to test the whole heating system whether there is resistance phenomenon, equipment valves and other places there is no leakage. Each oil pump to rotate the flow to start the cold oil circulation in the system for not less than 6 hours.

(4), clean the filter of the electric heating oil furnace: cold oil circulation in the system with some metal and impurity deposits, etc. with the cold oil in the oil pump before the interception of the filter, the end of the cold cycle after the dismantling of the filter thoroughly cleaned.