GB/ASME Standard 20G Boiler Membrane Wall for Power Plant Boilers

Introduction

Water wall panels are used in modern industrial boilers to replace steam generating tubes. They are designed to absorb high temperature radiant heat given off by the flame in the fuel chamber, and reduce heat loss caused by the air tightness. We manufacture boiler tubes of the water wall panels in a variety of shapes and sizes to meet customer requirements, and all are processed using automatic fin to tube welding machines and large tube benders.

Application

Materials for water wall panels
20# Steel, SA192, SA 106B, 15CrMoVG, 12Cr1MoV

Standards
ASME Code standard, GB Standard

Quality inspection
MT, RT, Hydraulic test

• Membrane boiler water wall panel: spot welds many rolled finned tubes into a sealed combined heating surface, which improves the airtightness of the furnace and reduces air leakage.
• Studded water wall tubing: welds pins of 20 to 25 mm in length and 6 to 12 mm in diameter on the water wall tube, and then applies a chrome ore refractory plastic to reduce the water wall panel’s heat absorption, and increase the temperature in the combustion zone. It is appropriate for situations where it is difficult to set fire to the fuel, as well as specific slag tapping furnaces.
• Plain tube boiler water wall panel: composed of a whole row of seamless steel pipes, the simplest structure.
• Wall-attached boiler water wall tubing: embedded in the inner wall of the furnace wall, single-sided heat absorption.
• Double-sided heated water wall panel: installed in the middle of the large boiler furnace, which is divided into two parts that are independent of each other, and both sides are heated.

SuZhou Saneco boiler co.ltd is a high-tech enterprise specialized in producing of boiler spare parts, such as fin tubes, economizers, super-heater and re-heater, boiler water wall panels, boiler manifold headers, and boiler steam drums for industrial boilers. Company also provide turnkey service for our customers from design, manufacturing, installation to maintenance.

The Company covers an area of 200,000 square meters of plant area and has fixed assets of 260 million yuan. The Company has more than 260 employees, including more than 52 engineering and technical personnel, more than 150 qualified welders and 30 professional inspectors (including NDT RT-III personnel).