Product Description
Introduction
Boiler economizers are heat exchange devices with finned tubes that
heat a liquid, sometimes water, up to however sometimes doesn't
exceed the boiling purpose of liquid. We can manufacture three
types of boiler economizer, bare tube economizer, H finned tube
economizer and spiral finned tube economizer. H-finned tube
economizer is high efficient heat exchanger economizer which is
consisted of H-finned tubes.
Compared with bare tube economizer, H-finned tube economizer can
enlarge the heat exchange area and reduce the number of tubes. It
also can increase the flue gas flow area in order to reduce the
flue gas flow speed and abrasion.
H-finned tube can be made as double H finned tubes , with high
rigidness to fit long tube row.
The spiral finned economizer is a newly designed heat transfer
equipment, consists of spiral fin tubes to overcome the serious
abrasion and short service time.
Specifications
Description | Boiler economizer |
Material | Alloy steel, Carbon steel, SA210C ,SA213T22, etc. |
Material standard | ASTM, EN or ISO etc. |
Dimension | Customization |
Weight | Min: 10 ton Max.:1000 ton |
Smelting Process: | EF+LF + VD |
Process | Material→Ingot → Hot/Cold-Rolling→ Heat treatment (Normalizing+
tempering) → Inspection →rough machining→UT →2nd Heat treatment
→finishing machining →Inspection |
UT standard | ASTM A388 or EN10228, etc |
Quality Control
1. Impact test and Strength calculation report with applied
materials information.
2. 100%NDT(non-destructive inspection) report of steel plate, tube
and electrode.
3. X-ray, γ-ray and liquid penetrant test inspection report
(welding seam): to ensure the quality of the entire boiler.
4. Hydraulic test report: ensure the standard working pressure and
safety.
