Low Temperature Superheater Coil Tube Heat Exchanger Boiler Spare Parts For Coal - Fired Boilers

Low Temperature Superheater Coil Tube Heat Exchanger Boiler Spare Parts For Coal - Fired Boilers

Superheater&Reheater, Custom Component For Boiler

In general, steam heated in high pressure superheater is named superheated vapour, the steam heated by reheater is called reheated vapour. The parameter of reheated steam is relating with economy of thermal circulation. Generally, the pressure of reheated steam is about one fifth of that of superheated steam, and the temperature of the former is almost the same as that of the latter. For example, in our nation for boiler with 125MW, 400t/h, the parmameter for superheated steam is 133.7Mpa and 555 degrees; the inlet and outlet pressure of reheated steam is 2.5/2.35MPa, their temperature is 555 degrees, too.

For boilers with 200MW, 670t/h, the parameter of superheated steam is 13.7MPa, 540 degrees; the inlet and outlet pressures are 2.7/2.5Mpa, and the temperature is also 540 degrees. For subcritical pressure control circulation boilers with 300MW, 600MW, superheated steam parameter is 18.27Mpa, 540 degrees; the inlet and outlet pressures are 3.83/3.63MPa, the temperature is also 540 dgrees. Application of steam reheating system can increase the thermal economy for power stations by 4-5%. In our country, units with capacity over 125MW all apply one time middle reheating system, and overseas, two times middle reheating systems are applied for some units with higher parameters.


Product Function&Features

HDB thermal efficient steam super heater for coal fired boilers
Specification:
Super heaters are the one of the most important boiler sapre parts that improves the thermal efficiency. High temperature steam boiler radiant super heater is usually applied in high pressure power plant boiler.
In the boiler, the role of super heater is to heat the saturated steam to a certain temperature of superheated steam to increase power plant efficiency. Repeater essentially further improves the thermal power plant cycle efficiency.
Steam Super heater Coils: Super heater coils are used in a boiler to generate saturated steam. The super heater coils are specially used in Boilers of Power plant. We manufacture Super heater coils in various grades of Alloy steel and in stain less steel tubes with or without support & Header as per customer's drawing.

Changes in boiler operating conditions, such as load level, fuel change, combustion condition change, etc., all have an impact on superheater outlet steam temperature, so in power station boilers there are means to adjust boiler outlet steam temperature to make it stable at the specified value.Commonly used means are:
(1) with water jet or surface type temperature reducer directly adjust the steam temperature;
(2) with the swing burner to change the temperature of the furnace outlet smoke;
(3) with smoke recirculation adjustment superheater heat absorption.When the boiler load increases, the temperature rise value of the inlet and outlet steam of the flow superheater increases, while the temperature rise value of the radiant superheater decreases.

If the convective superheater, radiant superheater and semi-radiant superheater are properly combined and configured, the outlet steam temperature can change less when the load and combustion conditions change.The heat absorption and steam flow rate of the parallel pipes in the superheater stack will be different in operation.In order to avoid excessive temperature in individual pipes, the superheater is divided into several pipe groups in large boilers. Steam of each pipe group is mixed with a collecting box outside the furnace and the steam guide pipe is used to make each pipe group transposition, so as to avoid excessive temperature difference between each pipe.

Details

Design structure
1. heating saturated steam, temperature up to 900 degree C.

2. high efficiency, >90%.

3. high speed heating.

4. design with stainless steel.

5. long design service life, 15 years.



Send us required technical data, such as steam capacity, presure, required temperature etc. We will design accordingly.


HD Boiler offers a best in class facility

Huadong Boiler has been specializing in producing custom boiler components for 34 years since 1985. Our boiler components have been used in industrial steam generators, steam boilers, hot water boilers, electric steam boilers, steam pressure reducing stations,etc

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. 

Packaging & Shipping

Company Business

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