Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Heat Recovery Boiler Spare Parts Water Wall Construction For Supercritical Boiler
Product Description
Water wall is the main heating part of the boiler, it consists of several rows of steel tubes, distributed around the boiler furnace.Its internal flow of water or steam, the external acceptance of the boiler furnace flame heat.It mainly absorbs the radiant heat of high temperature combustion products in the furnace, in which the working medium rises and evaporates when heated.
Product Introduce
HDB manufacture membrane water wall panels with submerged arc welding machine.And it usually laid vertically on the inner wall of the furnace wall, it is mainly used to absorb the radiant heat emitted by the flame and high-temperature flue gas in the furnace.It is the main type of evaporating heating surface of all kinds of modern boilers and the basic component of boiler water circulation loop.Because of both cooling and protection of the furnace wall, so the name.
The evaporative heating surface, which is laid on the inner wall of boiler chamber and consists of many parallel pipes.The function of water wall is to absorb the radiant heat of high temperature flame or flue gas in the furnace chamber, generate steam or hot water in the pipe, and reduce the temperature of the furnace wall to protect the furnace wall.In a large capacity boiler, the flame temperature in the furnace is very high, the intensity of heat radiation is very large.Forty to fifty percent or more of the heat in the boiler is absorbed by the water wall.Except for a few small capacity boilers, modern water tube boilers take water cooling wall as the main heating surface of evaporation.
Functions
1. The water wall absorbs the high temperature radiant heat of the flame in the fuel chamber, so that the water entering the water wall evaporates into saturated steam.
2. Protect the furnace wall. The water cooling wall is laid around to separate the combustion chamber from the furnace wall, prevent the furnace wall from being burnt out, and prevent the coking of the furnace wall and the harm of coke residue to the furnace wall.
3, simplify the structure of the furnace wall, easy to install.
4, water wall tube can absorb radiant heat very well, its evaporation heat intensity is four times the convection tube bundle, appropriate in the furnace to increase the water wall tube, will reduce the number of convection heating surface.
Specification
| Name | Membrane water panel |
| Material | Carbon steel |
| Tube size | Φ38 - 76 mm, Customize |
| Standard | ISO , ASME |
| Model | Studded |
| Application | Istallable around the boiler combustion chamber |
Quality Control
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
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.
Company Indroduction
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.