Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Alloy Steel Boiler Parts Water Wall Panels Membrane Type Water Wall Tube
Product Description
Water wall panels are the main heating surface of boilers, composed of numbers of rows of steel tubes, arranged around the boiler corner. Inside is the flowing water or steam, and the outside accepts the heat of the flame in the furnace of the boiler, mainly absorbing the radiation heat of the high temperature combustion products in the furnace. The working fluid rises in it and evaporates by heat.
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.
When the water wall was initially designed, it was not intended to be heated, but to cool the furnace so that it would not be damaged by high temperature.Afterwards, because of its good heat exchange function, gradually replacing the steam drum to be the main heating parts for boilers. They are the evaporative heating surface consisting of many parallel tubes laid on the inner wall of boiler hearth. Their functions are to absorb the radiant heat by high temperature fire or gas flue in the furnace, and produce steam or hot water inside the tubes, and also reduce the furnace wall temperature so as to protect it. In large capacity boilers, the flame temperature in the furnace is very high and the intensity of heat radiation is very high. 40-50% even more of heat is absorbed by the water wall.Except small capacity boilers, the main evaporative heating surface for the present water tube boilers are the water wall.
Parameter
| Name | Membrane water panel |
| Material | Carbon steel,Alloy,Stainless steel |
| Tube size | Φ38 - 76 mm, or as required |
| Standard | ISO , ASME |
| Model | Studded |
| Application | Istallable around the boiler combustion chamber |
Features
1. Strength calculation report with applied materials information;
2. 100%NDT(non-destructive inspection) report of steel plate, tube and welding rod;
3. 100%X-ray inspection report (welding seam): to ensure the quality of the entire boiler;
4. Hydraulic test report: ensure the standard working pressure and safet
Adavantages
1.ensure the sealing of furnace wall and reduce air leakage in combustion chamber.
2.realize full water cooling in the combustion chamber, which is conducive to preventing coking under the condition of intensified combustion.
3.low heat storage capacity, fast heating and cooling of the combustion chamber, which can shorten the cooling time of the boiler starting and stopping.
4.it is suitable to use tube-laying furnace wall, which greatly reduces the load of boiler frame and facilitates suspension.
5.compared with the light pipe, the heat absorption capacity of the pipe is improved.
6.improve the pre-assembly degree of boiler components, facilitate and reduce the installation workload.
Certifications
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.