Coal Economizer, Boiler Economizer Type H Fin Tube for Station Boiler

Specifications

Coal Economizer, Boiler Economizer Type H Fin Tube for Station Boiler
1.Fins Pitch: 12.5mm-30mm;
2.Fins Height: 60mm-140mm;

H fin tube, known as Square fin tube & H Finned economizer, finned tube, is used in boilers parts, marine power.

It is a kind of boiler parts, to have two steel circular symmetry to be welded on fluorescent tubes to form fins positive shap much like letter "H", so called H-fin tube. H-economizer widely used in utility boilers, industrial boilers, marine power, such as the tail of heat exchanger components.

 

 

  Principle:

H-economizer two rectangular fin, similar to a square, its edge length for the fluorescent tubes of 2-fold, an expansion of the heating surface.
H-economizer flash resistance welding processes used, the welding seam after the high rate of fusion, weld tensile strength, and has good thermal conductivity. H-economizer can also manufacture dual tube "double H" type fin tubes, its rigid structure, and can be applied to a longer tube row occasion.

 

 

Supplying Scope:

Fin tube Specification:Chinese GB standard or equivalent ASME standard or others 

Material: carbon steel, stainless steel, Aluminium and alloy steel;

 

Supplied H Type Fin Tube Specification

 

Item	Symbol	Unit	Parameter Value
Bare Tube OD	Φ	mm	32-51
Bare Tube Thickness	s	mm	2.5-6
Bare Tube Length	L	mm	≤11500
Fin Length	Lf	mm	≤10500
Fin Height	Hf	mm	60-140
Fin Width	β	mm	60-140
Fin Thickness	Sf	mm	2.0-4.0
Fin Pitch	T	mm	12.5-30
H Fin Space	b	mm	5-12

 

Special Material  

 

Tube	20G SA210C	Φ32-Φ51
Fin	Q235	Δ2-3
Tile Type Anti-abrasion Hood	1Cr6SiMo	Δ3
Comb Type Anti-abrasion Plate	1Cr18Ni9Ti	Δ2
Hanging Plate	12cR1MoV	Δ=16
Baffle	12Cr1MoV	Δ=8

 

Other sizes of the finned tube can be discused with customers' requirements.

 

Real product photo show

 

Products on the production line 

applied for economizer