Furnace Radiation Zone Platen Reheater Panel With Vertical Hanging Alloy Steel Design

Platen Reheater Panel for Furnace Radiation Zone with Vertical Hanging Alloy Steel Design

The Platen Reheater Panel is a high-temperature radiant heating surface component fabricated by Boyu Heavy Industry, designed for installation in the upper furnace of large utility boilers where it absorbs radiant heat to reheat steam. As a specialized boiler component manufacturer with integrated tube bending and welding capabilities, Boyu produces platen reheater panels featuring multiple parallel alloy steel tubes in vertical hanging configuration. This panel serves the primary function of absorbing furnace radiation to provide initial reheat steam temperature rise, complementing the convective high-temperature reheater. For large reheat cycle boilers, the platen reheater is essential for achieving target reheat steam temperature while maintaining acceptable tube metal temperatures.

The Platen Reheater Panel is specifically constructed with multiple parallel high-temperature alloy steel tubes bent into vertical U-shaped loops, with upper and lower bends connecting tube runs. Boyu fabricates panels from 12Cr1MoVG (SA-213 T11/T22) for 520-565C service and T91 (SA-213 T91) for up to 593C service. Tubes are arranged in parallel with uniform spacing (typically 60-150mm), connected to inlet and outlet headers. A key characteristic of platen reheater service is that reheat steam pressure is only 1.2-3.8MPa (much lower than superheater), allowing thinner tube walls (4-6mm) that reduce thermal stress and improve heat transfer. CNC precision bending ensures ovality <8%. The vertical hanging design allows free downward thermal expansion.

Manufactured using certified high-temperature alloy tubes with CNC bending, robotic welding, header fabrication and comprehensive NDT, every Platen Reheater Panel undergoes 100% RT for weld joints, bend inspection, dimensional verification and hydraulic pressure testing. Boyu's integrated facility enables panel fabrication under one quality system. Typical delivery is 30-45 days for complete panel sets. Complete material certificates, welding records and NDT reports accompany every shipment. The vertical hanging design includes support brackets and expansion allowance for proper furnace installation.

One significant advantage of Boyu Platen Reheater Panels is the optimized tube wall thickness for low-pressure high-temperature reheat service. Unlike platen superheaters that require thick walls for high pressure, platen reheaters operate at 1.2-3.8MPa, allowing thinner walls that reduce both material cost and thermal stress. This is particularly important for radiant heating surfaces that experience rapid temperature changes during load transients. Additionally, Boyu's systematic material selection (12Cr1MoVG for standard service, T91 for advanced high-temperature service) ensures appropriate creep and oxidation resistance for each design condition.

The Platen Reheater Panel is adaptable to various large utility boiler types and furnace configurations, making it suitable for power generation and large industrial steam applications. Its versatility enables fabrication for boiler capacities from 300MW to 1000MW and above, with reheat steam parameters from 2.4MPa/380C inlet to 3.8MPa/571C outlet. Furthermore, panels can be customized for specific tube counts, spacing, bend configurations and material grades, ensuring optimal performance for each boiler furnace design.

In addition to functional benefits, the Platen Reheater Panel is designed with safety and long-term reliability in mind. All high-temperature alloy materials and fabrication comply with ASME BPVC Section I and GB/T 16507 standards. Mandatory post-weld heat treatment is applied to all alloy steel welds. Boyu provides technical support for thermal design, material grade selection, creep life assessment and failure analysis, helping clients optimize platen reheater configuration for their specific furnace conditions.

To summarize, the Boyu Platen Reheater Panel represents a high-quality radiant reheat heating surface solution for large utility boilers. By delivering vertical hanging, high-temperature alloy steel panels with optimized wall thickness for low-pressure reheat service, it ensures efficient radiant heat absorption and reliable high-temperature performance. Our integrated manufacturing capability, systematic material selection and expert technical support make this product an ideal choice for large boiler manufacturers and EPC contractors.

Features

·        Vertical hanging design for furnace radiation zone, free downward expansion

·        High-temp alloy: 12Cr1MoVG(T11/T22) 520-565C / T91 up to 593C

·        Reheat pressure 1.2-3.8MPa, thinner walls (4-6mm) reduce thermal stress

·        Multiple parallel tubes, spacing 60-150mm, CNC bending ovality <8%

·        100% RT weld joints + bend inspection + hydraulic test

·        Mandatory PWHT for all alloy steel welds

·        Suitable for 300MW to 1000MW+ utility boilers

·        Steam: 2.4MPa/380C inlet to 3.8MPa/571C outlet

·        Delivery: 30-45 days for complete panel sets

·        Expert support for creep life assessment and material selection

Technical Parameters

Applications

The Boyu Platen Reheater Panel is a high-temperature radiant heating surface component for the upper furnace of large utility boilers. Manufactured in Shandong, China with vertical hanging design, this panel absorbs radiant heat to reheat steam. Certified with ISO9001, ASME, Grade A and SGS, the product guarantees high quality and reliable high-temperature reheat performance.

This Platen Reheater Panel is widely used in large utility boilers (300MW to 1000MW+) with reheat cycles. Its high-temperature alloy steel construction and optimized thin-wall design for low-pressure reheat service ensure reliable performance in the intense furnace radiation zone.