High Strength Boiler Membrane Water Wall Tube in ASME/GB Standard
Product Details
| Name: | Boiler Water Walls | Structure: | Fire / Water Tube |
|---|---|---|---|
| Fuel: | Coal / Gas / Coal-fired / Water Heat | Pressure: | Supercritical / Ultra-supercritical |
| Circulation Type: | Natural Circulation | Manufacturing Level: | A |
| Highlight |
membrane water wall,boiler water wall tubes |
||
Product Description
Membrane Water Wall Combustion Chamber Enclosure With Ultra Supercritical Standard
Description
Membrane walls were originally introduced for land power stations and are being increasingly used in marine boilers. Originally, experience gained when making the lower parts of furnaces sufficiently tight to hold liquid ash, proved that this could be done by welding in steel strips between the floor tubes.
In both methods the longitudinal welds are done by an automatic process and panels of the required size are built up ready for welding directly to headers, or, in some cases to stubs on drums.
Application
Boiler water walls are membrane walls that are made of tubes welded together with or without a strip of metal in between. These walls form the enclosure of the coal combustion chamber. Water wall tubes are also referred to as the evaporator section; they contain water mostly in liquid form which gradually evaporates as it rises in the boiler.
Features
1. Sturdy construction
2. High strength
3. Accurate dimensions
4. Corrosion resistant finish
Advantages
1. To guarantee the leakproofness of furnace wall and reduce the air leak of combustion chamber.
2. To achieve the full water cooling of combustion chamber, and the boiler accessories membrane water wall is benefit to prevent coking under the condition of supplemental firing.
3. The thermal storage capacity is small, the warming of combustion chamber is fast and the cooling is also fast, which could shorten the cooling time of boiler’s start and furnace shut down.
4. It is good to adopt top supported water cooled wall and it could reduce the load of boiler framework, which is benefit to overhang.
5. Compared with the bare tubes, the membrane water wall improves the heat absorption capacity of tubes.
6. The factory direct boiler membrane water wall could improve the Preliminary combination degree of boiler parts and reduce the installation workload.
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
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.
Product Highlights
Membrane Water Wall Combustion Chamber Enclosure With Ultra Supercritical Standard Description Membrane walls were originally introduced for land power stations and are being increasingly used in marine boilers. Originally, experience gained when making the lower parts of furnaces sufficiently tight ...
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