Water Tube Alloy Steel Boiler Economizer , Custom Power Plant
Economizer,High Efficient Heat Recovery
In boilers, Economical low installation costs better performance
boiler economizer for CFB boiler are heat exchange devices that
heat fluids, usually water, up to but not normally beyond
theboiling point of that fluid.
Economical boiler economizers are so named because boiler
economizers for water heating can make use of the enthalpy in fluid
streams that are hot, but not hot enough to be used in a boiler,
thereby recovering more useful enthalpy and improving the boiler's
Better performance boiler economizers are a device fitted to a
boiler which saves energy by using the exhaust gases from the
boiler to preheat the cold water used to fill it (thefeed water).
1.Absorb the heat of low-temperature flue gas, reduce the smoke
temperature, reduce smoke loss, save fuel.
2. Since the feed water is heated in the economizer before entering
the drum, the heat absorption of the feed water on the heating
surface is reduced, and the economizer can be used to replace the
evaporation heating surface with high cost.
3, Feed water temperature increased, into the drum will reduce the
wall temperature difference, thermal stress reduced accordingly,
extend the drum service life.
|Fin tube thread pitch||5-30|
|Fin tube length||≤12000|
*Note:HD BOILER can bespoke special type of economizer according to
Consists of a serious of spiral fin tubes, the headers of inlet and
outlet, bend, frame and other auxiliaries.
In line / staggered arrangement.
Manufacturing and acceptance criteria
· JB/T6512 "boiler with a high-frequency resistance welding spiral
fin tube manufacturing technology conditions"
· HG/T3181 "high-frequency resistance welding spiral fin tube"
· JB/T6511 "spiral finned tube test technical conditions."
· JB1611 "boiler tube mane box assembly conditions"
· JB/T1612 "boiler pressurufacturing conditions."
· JB16I3 "boiler pressure parts welding conditions."
• Impact test and Strength calculation report with applied
• 100%NDT(non-destructive inspection) report of steel plate, tube
• X-ray, γ-ray and liquid penetrant test inspection report (welding
seam): to ensure the quality of the entire boiler.
• Hydraulic test report: ensure the standard working pressure and
Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading
as HD Boiler),produces power plant; industrial; waste heat; waste
incineration; biomass; organic heat carrier and electric steam
boilers. Coupled with a comprehensive range of heating surfaces, HD
Boiler brings to the market a unique service including boiler
design , fabrication, installation, maintenance and replacement of
boiler pressure parts.