Heat Resistant Firm Structure ASME Standard Superheater Coil

High Temperature Evaporator Serpentine Coils Assembly ASME Standard

Introduction

For over 30 years, Hua Dong Boiler has been consistently innovating and improving our boiler spare parts. The improvements in bending, welding and design ensure our products meet both European and American standards, ensuring a reliable performance.

Serpentine tube is a tube that twists and turns several times in a plane.The convection heating surface of the boiler, such as economizer, superheater and reheater, adopts the structure of serpentine tube through the belt, with horizontal and vertical layout.

Evaporative tube bundle is an evaporative tube bundle mainly absorbing convection heat transfer in small and medium capacity boiler. It is generally a bundle of dense staggered tube system composed of ascending and descending tubes connected with upper and lower drum.Evaporation tube bundle pipe heat load is high, this part of the pipe by hot water into steam, from the bottom up;Its main function is to absorb heat to the water and steam and to serve as the rising part of the boiler water cycle.

1. Material composition: It is made up of snake-like tubes (carbon steel, alloy steel or heat-resistant steel, etc.) and collection boxes and other supporting material. Tubes generally have 32, 38, 42 or other types of specifications, according to user's needs separately.
2. Arrangement: vertical or horizontal layout.
3. Features: beautiful appearance, size, accuracy, first-class bending and welding technology, first-class detection equipment.

Superheater
Fossil fuel power plants often have a superheater section in the steam generating furnace.The steam passes through drying equipment inside the steam drum on to the superheater, a set of tubes in the furnace. Here the steam picks up more energy from hot flue gases outside the tubing, and its temperature is now superheated above the saturation temperature.

Reheater
Power plant furnaces may have a reheater section containing tubes heated by hot flue gases outside the tubes. Exhaust steam from the high-pressure turbine is passed through these heated tubes to collect more energy before driving the intermediate and then low-pressure turbines.

The drawing here is the evaporator assembly with membrane wall and evaporator coils for your reference.

This project also include steam drum+header+economizer.

Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in manufacturing boilers. Established in early 1985s, has two manufacturing bases, this company covers 400,000㎡ with fixed assets amounting to USD 110,000,000. There are 1100 employees including 150 technicians and 600 coded welders. Hua Dong holds the manufacturing licenses for Grade A boilers and Grade A1&A2 pressure vessels issued by Chinese General Administration of Quality Supervision, Inspection and Quarantine; also it holds the "S" and "U" "NB" stamps issued by American Society of Mechanical Engineers; meanwhile, this Company has passed the certification of ISO9001, SO3834, EN12952 Quality Management System.

"Hua Dong" boilers include Utility Boiler, HRSG Boiler, coal-fired , oil(gas) -fired, coal-water-slurry-fired and garbage-fired steam/hot water boilers, organic heat carrier boilers, etc., and Boiler spare parts (Economizer, Finned tube, Header, Steam drum, Superheater, Water wall panel, Air preheater, Cyclone separator, etc., which are widely used in power generation, heat supply, chemical engineering, textile, food, paper, road building, plastic, rubber and wood working industries. "HD" boilers are honored as "Famous Production in Jiangsu Province", " Jiangsu High-Tech Product" and "Jiangsu Energy-Saving Product". "HD" brand is a "Famous Brand in Jiangsu Province". We are a qualified supplier for the top three boiler manufacturers in China(Harbin Boiler Co., Ltd., Dong Fang Boiler Group Co., Ltd., Shanghai Boiler Works Ltd.,). So far, Hua Dong Boilers have served 10000 customers, which sell well all over China and are exported to USA, Australia, Russia, Kazakhstan, India, Indonesia, South Africa, Brazil, and Southeast Asia.

We strive to manufacture "Safe, Efficient, Energy-Saving and Environment-Friendly" boilers, provide new-type products in excellent quality, serve users sincerely to their satisfaction, and be a top supplier of boilers in China.

Declaration

Zhangjiagang Hua Dong Boiler Co.,Ltd has no subsidiaries. 

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Our products have been wildly used in power plants and large international companies overseas.