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Durable ASME Compliant Membrane Walls For High Performance Biomass Boilers

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Zhangjiagang HuaDong Boiler Co., Ltd.

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Durable ASME Compliant Membrane Walls For High Performance Biomass Boilers

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Brand Name :	HD BOILER
Model Number :	MWWPO1228
Certification :	ISO9001 , EN3834 , ASME , BS, Grade A
Price :	Negotiable
Payment Terms :	L/C,T/T
Supply Ability :	600 Tons Per Month
Delivery Time :	Within 95 Days after getting the DP or L/C

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Product Details
Company Profile

Durable ASME Compliant Membrane Walls For High Performance Biomass Boilers

Product Specifications

Attribute	Value
Material	Carbon Steel/Alloy Steel
Color	Red/blue/black
Manufacturing Level	ASME Standard
Range of Applications	Biomass Boiler
Specification	As per the drawing
Structure	Membrane wall
Port	Shanghai, Zhangjiagang

Product Introduction

The water wall is a key heating element in the boiler, made up of multiple rows of steel tubes arranged around the furnace chamber. Inside these tubes, water or steam circulates, while outside they absorb heat from the flames in the furnace.

Its main role is to capture radiant heat from high-temperature combustion gases, helping the fluid inside move upward and gradually turn into steam through heating.

Originally used mainly for cooling the furnace, water walls have evolved into the primary heating surface in today's boilers thanks to their efficient heat transfer. They are especially important in high-capacity boilers, where they can absorb 40% to 50%—or even more—of the total heat in the system.

Key Advantages

Ensures furnace wall leakproofness and reduces combustion chamber air leakage
Provides complete combustion chamber water cooling, preventing coking during supplemental firing
Features minimal thermal storage capacity for rapid heating/cooling cycles
Top-supported design reduces framework load and facilitates overhang
Enhances tube heat absorption capacity compared to bare tubes
Factory-direct manufacturing improves component integration and reduces installation workload

Structural Classification

Plain Tube Type: Simplest structure using seamless steel pipes.

Membrane Type: Features welded fin tubes forming a sealed heating surface, improving airtightness and furnace protection.

Squeaked Tube Type: Incorporates welded pins for refractory application, ideal for difficult ignition or liquid slag discharge furnaces.

Layout variations include attached wall (single-side heating) and partition wall (double-sided heating) configurations for different boiler requirements.

Construction Details

Membrane water wall construction involves precise dimensional checks, specialized welding techniques to minimize deformation, and complex assembly for components like furnace bottoms and flame angles. Special attention is given to:

Dimensional adjustment of tube rows including width, length, and flatness
Specialized welding sequences to control shrinkage deformation
Complex assembly of rear water wall components with flame angles
Precision ball passing through specially configured piping systems

Manufacturer Profile

Hua Dong Boiler Co., Ltd. is a specialized boiler manufacturer established in 1985 with two manufacturing bases spanning 400,000 m². The company holds:

Grade A boiler and pressure vessel manufacturing licenses
ASME "S", "U", and "NB" stamps
ISO9001, SO3834, and EN12952 certifications

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