Stainless Steel/Carbon Steel Boiler Spare Parts Spiral Fin Tube for Boiler Economizer

H-type finned tube heat exchanger elements maintain a high capacity for heat transfer, possess superior self-cleaning properties and retain the ability to effect flue gas waste heat recovery in boiler renovations. Convective heat transfer coefficient is proportional to fin pitch, but inversely proportional to fin height and fin width. Integrated heat transfer capacity is related to fin efficiency, convective heat transfer coefficient and finned ratio. Pressure drop increases with the increase of fin height and fin width.

Technical Parameters

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 performance.

Structure

Our products can be modified according to our customers' needs and the situation.we design and manufacture safe,reliable and efficient H-fin tubes.HD BOILER has also completed stand-alone product quality assurance systems.Production of H-fin tubes are with high heat transfer efficiency, they have flue gas resistance and are designed for a small space.

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

Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid industry. And we have passed the attestations including ASME, TUV, Grade A, ISO9001, EN12952, EN10216, SO3834.

The company is the subsidiary of Zhangjiagang Hua Dong Boiler Co., Ltd, which is the most leading boiler and boiler parts manufacturer in China with a history of 35 years and annual turnover of 110 million U.S.A. dollars. Our products have been exported to over 30 countries like United States, Australia, Vietnam, Pakistan, Albania, Cambodia, India, Indonesia, South Korea, the Philippines, Turkey, Saudi Arab, Germany, Russia, Chile, Syria, Thailand, Bangladesh, France, Algeria, Mongolia and Singapore, Cuba, Iraq, Italy, Spain, Japan, Yugoslavia, Sri Lanka, the Czech republic, kyrgyzstan, Canada, Malaysia, the United Kingdom and so on.

Location:

Our company locates in Zhangjiagang city which is a port city, and is only 120km far away from Shanghai, 60km far away from Suzhou and 60km far away from Wuxi.

The traffic is very convenient.

Staff:

About 600 employees, including 150 technicians.

Strategy:

We strive to provide the top grade quality products and best services to the customers. Keep developing the new products which are energy saving, environment protective and keep investing for the new equipments and new technologies.

Supplying ability:

10000MT per month for the tubes and pipes

5000MT per month for the steel plates

Global cooperation partners:

Covanta, Foster Wheeler, RCR Energy, ALSTOM, POSCO, Dongfang Electric, Shanghai Electric, China Huaneng, China Guodian, China Datang Corporation, Huaguang Boiler, Haerbin Boiler, Dongfang Boiler, Hangzhou Boiler, Bao Steel, Tisco, Shagang Steel......

Our products' quality is ensured by advanced, excellent facilities and manufacturing equipment. We have introduced many advanced processing and inspection equipments, including plasma cutting machine, NC drilling equipment, automatic welding system, welding equipment and real-time online imaging detection system, etc., which successfully ensure excellent quality of our products.