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[China]
Trade Verify
Address: Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China
Contact name:Sandy Chen
Zhangjiagang HuaDong Boiler Co., Ltd. |
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Verified Suppliers
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Boiler H Type and Spiral Fin Tube
Product Description
1.Finned Tube Heat Exchangers consist of a shell and finned tubes assembly.
2.Fins are used to increase the effective surface area of heat exchanger tubing.
3.Finned tubes are used when the heat transfer coefficient on the outside of the tubes is appreciably lower than that on the inside;as in heat transfer from a liquid to a gas,vapor to a gas ,such as steam to air heat exchanger, thermic fluid to air heat exchanger, when an extended surface is needed on only one fluid side or when the operating pressure needs to be contained on one fluid side.
Technical parameter
| Medium | air, flue gas, thermal oil, water, brine, refrigerant, etc. |
| Temperature | standard heat exchanger to 560 ° C by special materials can be higher |
| Pipe materials | carbon steel, stainless steel, alloy or special materials |
| Ribs materials | carbon steel, stainless steel, non-ferrous metal, alloy or special materials |
| Thermal insulation &Surface treatment | according to customers specification |
Types we can manufacture
H fin(stainless)
Spiral(stainless)
Bare tube(stainless)
Spiral(CS)
H fin(ND-steel)
Integrated(CS)
H fin(CS)
Serrated(CS)
Principle
• H fin tube 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.
• 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.
Detail
In order to improve the heat exchange efficiency and extend surface
heat transfer, H-type finned tubes have been widely used in boilers
and waste heat recovery in recent years. H-type finned tubes are
derived largely from rectangle finned tubes. Because of their
unique groove structure on the fin surface, H-type finned tubes
have excellent anti-wear and anti-fouling
Features
1. The equipment body can be designed into many modules to ensure the long term and stable running;
2. Compact structure which can enlarge the heat exchanging area in order to add the heat transfer area and less leakage
3. Improve the heat transfer efficiency
4. Structure arrangement: In line or staggered arrangement
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. |
Company Introduction
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.
