1. Overview of Platen Superheater

A Platen Superheater is a type of radiant superheater that is vertically arranged at the upper furnace outlet. Named for its "screen-like" structure, it directly absorbs radiant heat from high-temperature flue gases to further heat steam into a superheated state, significantly boosting boiler efficiency.

2. Structure and Working Principle

The platen superheater typically consists of upper and lower headers, bent connecting tubes, and vertically aligned tube bundles. Steam flows inside the tubes while the outer surfaces absorb radiant energy from the furnace. Since it is located in the high-temperature zone, it operates primarily by radiant heat transfer, which is far more efficient than convective heating alone.

3. Materials and Manufacturing Process

To withstand high-temperature and high-pressure environments, platen superheaters are usually made from high-temperature alloy steel, such as SA213-T91, T22, and others.

We adopt advanced fabrication techniques, including:

• High-precision automated welding, ensuring dense and consistent weld seams

• In-house tube bending, allowing customized angles and flexible design

• Independent header fabrication, adaptable to various connection layouts

• Full-process NDT and heat treatment, guaranteeing long-term safety and reliability

4. Key Benefits

Platen superheaters offer the following performance advantages:

• High heat transfer efficiency through direct radiant absorption

• Compact, modular design for easier installation and maintenance

• Excellent wear resistance, with optional flow guides and shields

• High adaptability, suitable for high-temperature steam reheating in various applications

5. Typical Applications

Platen superheaters are widely used in:

• CFB boilers

• Pulverized coal-fired boilers

• Biomass power plants

• High-pressure industrial boilers in metallurgy, chemical, and cogeneration sectors

We have successfully supplied platen superheaters for multiple large-scale CFB units in China and abroad, earning a strong reputation for stability and performance.

6. Our Manufacturing Advantages

As a heat exchange equipment manufacturer with over 20 years of experience, we offer:

• In-house finned tube and tube bending production for better efficiency and structural flexibility

• One of the largest economizer and superheater suppliers in Northern China

• Long-term OEM supplier for China’s Top 3 boiler manufacturers – Shanghai Boiler Works, Harbin Boiler, and Dongfang Boiler

• Compliance with ASME, GB, and EN standards

• Equipped with automated welding systems, large-scale header fabrication tools, and complete NDT capabilities