After e check all equipment of boiler meet the requirements, we conduct the drying process to clean the boiler, and to dry the bricks, and, insulation of the oven. Especially stabilizing the metal lattice of e deformed after fabrication furnace.
Prolific drying operation the boiler must be regularly monitored all the equipment of the furnace Oh, special is checking the water level in the tube t trìn working committee and the feed water pump.
the boiler drying is performed as follows:
+ chemicals Chemicals are pumped into the boiler pump with water pump pumping water to the mark high of hydraulic hose, and open the air valve x gas to escape.
+ inspecting the joints, joints see e tightness and no water leaks out. Then proceed to restart the furnace in MAN mode (feedwater pump can run in MAN or AUTO mode, if running in the MAN must constantly observe the water level in the boiler hoses to supply water to the furnace) . Let the pump run in AUTO mode.
+ Maintain nh flame furnace for a period of 8 hours and not to increase the pressure by the outgoing exhaust air valves. Additional water into the boiler if the water level down to tt lowest bar of hydraulic pipe (in the case of feed water pump running in MAN mode), if the pump runs in AUTO mode, it will automatically pump pumping water into the furnace.
+ After when the furnace is 8 hours, conducting close air valves or valve steam and combustion enhancement mode to gradually increase the pressure of the furnace from 0, (PLV -2) kg / cm 2 for 6 hours. When the pressure reaches the oven dd (PLV -2) kg / cm2, the pressure maintained at 0.14 which is about 12 hours.
When the oven reaches 2 kg cm2 pressure, prudent use short spanner tighten the nut within the subject boiler pressure.
Stop burning stove, furnace and cooled reduced pressure, when the pressure of 0 kg cm2 furnace and boiler temperature <70 0 C, the exhaust valve open drain out.
when the boiler e cold hn shall conduct open water pump, water pump filled oven (up to the mark's highest hydraulic hose) and conducted x wipeout water in the oven. The process of pumping and discharge was conducted continuously for 3 times. Finish drying oven.
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