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Water Tube Steam Boiler Spare Parts BS 3059 Waterproof Membrane Wall

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Water Tube Steam Boiler Spare Parts BS 3059 Waterproof Membrane Wall

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Brand Name : ORL Power

Model Number : Customization

Certification : ISO9001/SGS/TUV/ASME/EN

Place of Origin : Zhangjiagang,Jiangsu,China

MOQ : 1 Set/Sets 10tons

Price : Contact me | Get Latest Price

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 500Ton/Tons per Month

Delivery Time : 50~100 Days

Packaging Details : Iron Frame Package

Style : Style

Condition : New

Fuel : Coal、Gas、Oil-fired, Water Heat

Output : Hot Water、Steam

Dimension(L*W*H) : Customization

Type : Once Through、Natural Circulation

Weight : 10~1000ton

Pressure : High、Low Pressure

Product name : Water Wall Panels for Boiler power station

Keywords : Water Wall Panels

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Carbon Steel Boiler Spare Parts Waterwall Panel For Water Tube Steam Boiler

Website:www.orlpower.com

Our membrane water wall are manufactured using high grade raw material and contemporary production equipment at our advanced manufacturing unit. The offered range is available in various sizes, shapes and specifications, as per the requirements of our esteemed clients. Further, these are delivered to the clients within promised time frame.


Product Description


Advantages of Membrane Water Wall
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.


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.

Challenges
As the water wall tubes form a lining along the whole boiler, they are submitted to a temperature gradient of 300 °C to 500 °C between the bottom section of the boiler and its top. To facilitate fitting, the panels in the boiler should preferably be made of steel grades that do not require any post-weld heat treatment. Vallourec supplies tubes for water walls in all grades, from carbon steel to advanced low-alloy steel, with outside diameters ranging from 31.8 mm to 63.5 mm.


Materials


BS 3059 Grade 440 seamless carbon steel tubes.

Welding Processes / Procedures
STT II – Surface Tension Transfer (STT) Process with certified & tested weld procedures.
TIG welding process.

Fabrication Standards / National Codes
AS1228 – Power Boilers
AS4458 – Pressure Equipment Manufacture
AS4041 – Pressure Piping
AS4037 – Pressure Equipment – examination & testing

Quality Assurance Requirements
Material certification for all materials

Inspection and Test Plan (ITP)
100% radiography on butt weld joints


Detailed Images


1.The function of the superheater in the thermal power plant is to remove the last traces of moisture ( 1 to 2%) from the saturated steam coming out of boiler and to increase its temperature sufficiently above saturation temperature.
2.The super-heating heating raises overall overall cycle efficiency efficiency as well as avoids too much condensation in the last stages of the turbine which avoids the blade erosion.
3.The heat of combustion gases from furnace is utilized for the removal of moisture from steam and to superheat the steam.
4.Super-heaters usually have several tube circuits in parallel with one or more return bends, connected between headers.

The panels are joined in two ways:
By means of welding 4mm – 8mm thick flat bar to the the tube surfaces;
Welding Extruded longitudinally finned tubes.


Contact Information
ADD: 11 East Renmin Road, Zhangjiagang City, Jiangsu, China
Phone:+86 0512-56770166
E-mail: orl@orlpower.com
Website: www.boiler-units.com


Product Tags:

BS 3059 boiler water tube

      

Membrane Wall boiler components

      
Wholesale Water Tube Steam Boiler Spare Parts BS 3059 Waterproof Membrane Wall from china suppliers

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