YQL oil-fired thermal fluid heater with three - way circular coil structure. The tapered coil is used to effectively protect the wall of the boiler. The product is equipped with an advanced combustion device and is fully automated in operation. After the burner ignites the fuel, the flame fills the coil and radiates heat through the wall (first pass). The hot flue gas accumulates at the back door and then turns to the convection tube section (second pass) where heat is transferred by convection. The smoke cools down here and flows to the front door, where it is reversed and enters the third pass. After that, it enters the chimney through the economizer and is released into the atmosphere.
The laying-off of steel tube adopts CNC 3D laser cutting machine.
The manufacture of square coil tube adopts CNC three-dimensional tube bending machine, no forced shaping.
The manufacture of serpentuator adopts serpentuator automatic production line, once-forming.
Square coil tube and coil tube all adopt argon arc welding technique,which guarantees tubes are 100% qualified.
The optimized radiation heating surface and convective heating surface, the medium flow is more reasonable, without overheat of the carrier and reduce the life;
Convection section: optimize convection heating surface and adopt effective fix and structural support to make its working life longer.
We have combustion arch patent, which is available for different types of coals, even the anthracite is very easy to burn.
Flame-proof feeding bucket can avoid the feeding bucket is burnt and coking.
There is ash cleaning unit, which is easy for maintaining, operating and cleaning.
Use superior refractory brick to build inside and superior perlite in the middle. Keep the furnace temperature under 50℃ to make the minimization of loss.
Furnace adopts double close line coil, which makes heating surface sufficient.
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