Zhangjiagang HuaDong Boiler Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 4800 tons/year |
| Delivery Time | 60 days |
| Packaging Details | Sea worthy Packing for Export |
| Material | Carbon Steel, stainless steel |
| Application | Power Station and Industrial |
| Name | Boiler Water Wall |
| Warranty | 3 Years |
| Circulation Type | Natural Circulation |
| Packing | Standard Packing for Exportation |
| Brand Name | HD Boiler |
| Model Number | Boiler Water Wall Panel |
| Certification | ASME, EN, SGS, ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 4800 tons/year |
| Delivery Time | 60 days | Packaging Details | Sea worthy Packing for Export |
| Material | Carbon Steel, stainless steel | Application | Power Station and Industrial |
| Name | Boiler Water Wall | Warranty | 3 Years |
| Circulation Type | Natural Circulation | Packing | Standard Packing for Exportation |
| Brand Name | HD Boiler | Model Number | Boiler Water Wall Panel |
| Certification | ASME, EN, SGS, ISO9001 | Place of Origin | China |
| High Light | carbon steel boiler water wall ，boiler membrane wall tube ，cfb boiler water wall | ||
Carbon Steel/Stainless Steel Boiler Parts Boiler Water Wall Panel for CFB Boilers
Introduction
The full name is water wall tube, old name is water-cooled wall,also called riser. Usually laid vertically on the inner wall of the furnace, they are used to absorb the radiant heat by the flame and high temperature flue gas.They are the main form of heating surfaces for the various modern boilers, also the basic parts of water circulation circuit. For they have the functions of cooling and protecting the furnace wall, so called water wall panels.
Membrane Water Wall
Membrane water wall is an air-tight structure consisting of pipes and fins.The advantages are less air leakage in furnace; can use pipe-laying wall, less load on steel structure and lower cost of boiler; easy to use suspension structure and improve thermal expansion system, suitable for large-scale mechanized production, high assembly rate, low heat storage capacity and shorten star-up and shutdown time. The disadvantage is that the manufacturing process is complex. Membrane water wall is often used in large capacity, high temperature and high pressure boilers.
Specification
The main function of water wall panels in boiler is to absorb the heat generated by high temperature flame or flue and to generate steam or hot water in tubes, hence to reduce the temperature in the chamber .
| Name | water wall panels |
| Material | ASME standard carbon steel or alloy steel |
| Tube size | Customized |
| Standard | As per ASME standard |
| Equipment | Automatic production equipment |
| Application | Installated around the boiler combustion chamber |
Material and pipe diameter for medium, high and ultra-high pressure boilers, under normal water circulation conditions, pipe wall can be well cooled, carbon steel pipe can be selected. For sub critical and super critical pressure boilers, doe to the deterioration of heat transfer and the high medium temperature(especially when the super critical parameters are reached), it is often necessary to use internal threaded tubes(multi-head spiral grooves on the inner wall of the tube, the typical structure shown in Fig. 2) or Cr-Mo alloy steel tubes. For membrane water wall, the max. Temperature and stress of fins should also be checked. The outer diameter of water wall tubes of natural circulation boiler is generally 42-76mm, the sub-critical pressure controlled circulation boilers are 42-51mm, and the once-through boilers are 22-42mm.
Strong points of membrane water wall
(1) Ensure the sealing of furnace wall and reduce air leakage in combustion chamber.
(2)The realization of full water cooling in combustion chamber is beneficial to prevent coking under the condition of intensified combustion.
(3)The cooling time of start-up and shutdown of boilers can be shortened because of its small heat storage capacity, fast temperature rise and fast cooling in combustion chamber.
(4)Pipe-laying furnace wall is suitable, which greatly reduces the load of boiler frame and it is convenient for suspension and lifting.
(5)Compared with the bare tube type, the heat absorption capacity of the tube is improved.
(6)It improves the per-assembly degree of boiler components, facilitates and reduces the installation workload.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
1985
Total Annual:
100,000,000-120,000,000
Employee Number:
1000~1100
Ecer Certification：
Verified Supplier
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 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. ...
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