Water wall panel membrane with fin bar boiler industry with heat
treatment carbon steel anti corrosion
1.Membrane walls were originally introduced for land power stations
and are being increasingly used in marine boilers.
2.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.
3.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.
1. Boiler water walls are membrane walls that are made of tubes
welded together with or without a strip of metal in between.
2.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.
1. Sturdy construction
2. High strength
3. Accurate dimensions
4. Corrosion resistant finish
|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
Raw material & Assembling