
Phase separator Chain Grate Boiler Drum level control environmental
protection ASME , NB Code
Description of Steam Drum
A steam drum is a pressure chamber of a steam boiler located at the
upper extremity of steam boiler circulatory system. It is a
reservoir of water/steam at the top end of the water tubes. The
steam drum stores the steam generated in the water tubes and acts
as a phase-separator for the steam/water mixture. Steam is
separated from the water and then discharged at a position above
the water level maintained there.
Classification of Steam Drum
Pressure | Low | Middle | High | Superhigh |
Inner diameter(mm) | ¢ | ¢ | ¢ | ¢ |
Thickness(mm) | 16-25 | 32-46 | 60-100 | 80-100 |
Material | Carbon steel | Carbon steel & Alloy steel | Carbon steel & Alloy steel | Alloy steel |
Efficient steam-water separation factors of Steam Drum
1. It prevents the carry-over of water droplets into the
superheater, where thermal damage could result.
2. It minimizes the carry-under of steam with the water that leaves
the drum, where this residual steam would reduce the circulation
effectiveness of the boiler.
3. It prevents the carry-over of solids. Solids are dissolved in
the water droplets that may be entrained in the steam if not
separated properly. By proper separation, this prevents the
formation of deposits in the superheater and ultimately on the
turbine blades.
**carry-over is the passing of water and impurities to the steam outlet.
**The term critical pressure is the pressure at which there is no
difference between the liquid and vapor states of water; i.e., the
density is identical. This occurs at 3206 psia.
Certificate
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.
1. Fabrication area of 200,000 square meters
2. 150 Engineers
3. 600 Coded welders
4. 60 Licensed Inspectors(NDT Level-III instructors)
5. Class-A Licenses for Design and Manufacture Boiler
6. ISO 9001:2008 Quality System
7. ASME Certificate of Power Boilers
8. ASME 'S','U' and NB stamp authorization
Design and Manufacturing capacity
1. Two automatic coiler production lines
2. Hot bending to minimum bending radius 0.6D
3. Membrane wall tube bending , with horizontal and vertical panel
bending machines
4. Panel fabrication for up to for 1000MW power plant boilers
5. Fabrication of CFB Boiler Cyclone Separators
6. Fabrication of Header to Chinese standards(GB), US standards
(ASME), or EU standard (EN)
7. Broad range of heat treatment equipment including 10 furnaces,
offering normalizing and tempering
Zhangjiagang HuaDong Boiler Co., Ltd.
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.