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Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Otic Placode Isolation Boiler Water Walls 12Cr1MOVG / 15CrMOVG

Zhangjiagang HuaDong Boiler Co., Ltd.
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Zhangjiagang HuaDong Boiler Co., Ltd.
Province/State: Jiangsu
Country/Region: China
Tel: 86-512-58666196
Contact Person:
Miss Sandy Chen

Otic Placode Isolation Boiler Water Walls 12Cr1MOVG / 15CrMOVG

Brand Name : HD BOILER
Model Number : Furnace wall
Certification : ISO9001 , SGS , TUV , ASME , EN
Place of Origin : Zhangjiagang,China
MOQ : 1 Set
Price : Negotiable
Payment Terms : L/C, T/T, Western Union
Supply Ability : 500 Tons / Month
Delivery Time : 50 Days
Packaging Details : Iron Frame Package
Material : 12Cr1MOVG & 15CrMOVG
Structure : Fire / Water Tube
Surface Treatment : Painted
Range of Applications : Industrial / Power Station
Specification : Customized
Port : Shanghai
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Otic placode isolation 12Cr1MOVG and 15CrMOVG for heat treatment process


Description


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.


3.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


1.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.


2.To facilitate fitting, the panels in the boiler should preferably be made of steel grades that do not require any post-weld heat treatment.


3.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.


Maintenance


1In maintenance of industrial high pressure steam boilers panel wall cold cutting is an important step before weld preparations.
2To avoid any heat affected zone (HAZ) on the boiler tubes of the water wall panels, the sawing of the defective panel wall tubes should be done not by flame cutting but instead with the BWC cutting system, that uses abrasive saws.
3The system increases safety of workers and works with high productivity. Due to the straight cut you will have less wearing of cutting discs and caused by the high cutting quality you have less after work, after removing boiler tube failures.

Application


1The boiler tube panel cutter has been developed for repair and weld preparation of boiler tube panels in high pressure boilers and supercritical boilers.
2Having a low weight the unit is of very rugged design.
3Operated by one man only, it is well suited for use in the workshop and on site.
4Due to its extremely compact type of construction it can be readily used in confined space.
5Its high working speed and quick readiness alows economical manufacturing by removing membrane and cutting pendant tube in one operation.

Features

1. Sturdy construction
2. High strength
3. Accurate dimensions
4. Corrosion resistant finish


Advantages


1.No heat affected zone


2.Increased safety of workers


3.Less wearing of cutting discs


4.High productivity


5.High cutting quality


Raw material & Assembling




Product Tags:

boiler water wall panels

      

boiler water wall tubes

      
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Otic Placode Isolation Boiler Water Walls 12Cr1MOVG / 15CrMOVG Images

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