Reliable Manufacturer for Boiler Economizers and Air Preheaters

When industrial plants need to improve boiler efficiency, replace damaged tube bundles, or upgrade heat recovery systems, boiler economizers and air preheaters are often the most practical components to start with. These systems recover waste heat from flue gas and help reduce fuel consumption, improve combustion conditions, and extend the service life of boiler equipment.

Shandong Boyu Heavy Industry Technology Group Co., Ltd. is a professional manufacturer of boiler components, pressure vessels and industrial heat exchange equipment. We manufacture customized boiler economizers, air preheaters, evaporator tube bundles, headers, serpentine coils, finned tube systems and related heat recovery equipment for power plants, steel mills, coking plants, chemical plants, waste heat recovery projects and boiler replacement projects.

For customers looking for a qualified boiler economizer manufacturer or air preheater supplier, Boyu provides engineering-based manufacturing, strict quality control and project experience across multiple industrial sectors.

What We Manufacture

Boyu provides customized manufacturing for a wide range of boiler heat recovery components, including:

• Boiler economizers

• Low-temperature economizers

• High-temperature economizers

• CDQ auxiliary economizers

• Economizer tube bundles

• Serpentine economizer coils

• Economizer headers

• Economizer tube panels

• Anti-wear protection parts

• Tubular air preheaters

• Air preheater tube boxes

• Enamel air preheaters

• Steam air preheaters

• Evaporator tube bundles

• Finned evaporator tube systems

• Bare tube evaporator bundles

• Boiler headers and related pressure parts

Whether the project is a new boiler system, a spare parts order, or a replacement project based on existing drawings, Boyu can manufacture according to customer drawings, technical specifications, operating conditions and inspection requirements.

Boiler Economizers for Heat Recovery and Boiler Efficiency Improvement

A boiler economizer is installed in the flue gas path to recover residual heat and transfer it to boiler feedwater. By increasing feedwater temperature before it enters the drum or evaporating system, the economizer helps reduce fuel consumption and improve overall thermal efficiency.

Boyu manufactures economizers for different boiler systems and industrial applications, including power boilers, waste heat boilers, CDQ boilers, biomass boilers, chemical industry boilers and coking plant heat recovery systems.

Typical economizer structures include serpentine tube coils, tube bundles, finned tube banks, bare tube banks and modular economizer assemblies. The final design depends on flue gas temperature, pressure level, medium conditions, material requirements, space limitations and maintenance needs.

For replacement projects, Boyu can support customers by reviewing original drawings, confirming tube size, tube quantity, material grade, header structure, anti-wear protection and interface dimensions before manufacturing.

Air Preheaters for Industrial Boiler Systems

An air preheater uses flue gas heat to preheat combustion air before it enters the furnace. This improves combustion efficiency and supports more stable boiler operation. In many industrial boiler systems, the air preheater is also one of the key components affecting fuel consumption, flue gas temperature and long-term operating performance.

Boyu manufactures tubular air preheaters, air preheater tube boxes, enamel air preheaters and related replacement components. These products are widely used in coal-fired boilers, biomass boilers, industrial furnaces, waste heat boilers, chemical industry boilers and coking plant boiler systems.

For air preheater projects, important manufacturing factors include tube material, tube-to-tube sheet welding, tube box dimensional accuracy, corrosion allowance, flue gas resistance, cleaning accessibility and connection with existing boiler ducts. Boyu can customize air preheater products based on customer drawings and project site requirements.

Qualifications That Support Industrial and International Projects

For boiler economizers and air preheaters, manufacturer qualification is critical. These products are often pressure-bearing or closely connected with pressure systems, so the supplier must have reliable manufacturing capability, welding control, inspection capability and documentation management.

Boyu holds qualifications and certificates related to boiler component manufacturing, pressure vessel production, quality management, environmental management, occupational health and safety management, and ASME authorization.

These qualifications support our ability to manufacture boiler components and pressure equipment for domestic and overseas industrial projects. For international customers, Boyu can prepare manufacturing documents, material certificates, inspection records, welding documents, pressure test reports and final quality documentation according to project requirements.

Representative Project References

Project references are an important indicator of a manufacturer’s real production capacity. Boyu has supplied economizers, evaporator tube bundles, auxiliary economizers, low-temperature economizers, high-temperature economizer components and air preheater products for many boiler manufacturers, steel groups, coking enterprises, chemical plants, power projects and waste heat recovery projects.

Representative project references include equipment supplied for Taiyuan Boiler Group, Harbin Boiler Co., Ltd., Shanghai Boiler Works, Sichuan Chuanguo Boiler Co., Ltd., Dongfang Boiler, Anyang Iron and Steel, Maanshan Iron & Steel Chemical Energy, Shandong Iron and Steel, Fangda Special Steel, Guangxi Shenglong Metallurgy, Tianjin Xintiangang Coking Chemical, Qian’an Zhonghua Coal Chemical, Hanlan Green Power and other industrial customers.

These references cover many product types, including economizer tube bundles, serpentine economizer coils, CDQ auxiliary economizers, finned evaporator tube systems, bare tube evaporator bundles, air preheater tube boxes and enamel air preheaters.

For customers, these project references mean Boyu is not only a general fabrication supplier, but also a manufacturer with practical experience in boiler heat recovery equipment, pressure components and industrial replacement projects.

Why Customers Choose Boyu

Industrial customers usually care about more than price. For boiler economizers and air preheaters, poor manufacturing quality may lead to leakage, installation deviation, excessive pressure drop, corrosion problems, shutdown losses and repeated maintenance costs.

Boyu focuses on practical manufacturing quality and project delivery reliability. Our advantages include:

• Qualified boiler component and pressure equipment manufacturing capability

• Experience in economizers, air preheaters, evaporators, headers and heat exchangers

• Ability to manufacture according to drawings and customized specifications

• Experience with replacement, retrofit and spare parts projects

• Material inspection and quality documentation control

• Welding, non-destructive testing and pressure testing capability

• Project references across steel, coking, power, chemical and waste heat recovery industries

• Support for international project documentation and inspection requirements

For buyers, this means fewer communication costs, better drawing execution, more stable product quality and stronger support during project delivery.

Customized Manufacturing Based on Drawings and Operating Conditions

Many boiler economizer and air preheater orders are not standard products. Customers often need replacement parts for existing boiler systems, and the equipment must match the original interface, tube layout, support structure and site installation conditions.

Boyu can manufacture according to:

• Customer drawings

• Technical specifications

• Material requirements

• Tube size and tube quantity

• Header arrangement

• Flue gas operating conditions

• Feedwater or air-side parameters

• Anti-wear and corrosion protection requirements

• Inspection and testing requirements

• Packaging and delivery requirements

This is especially important for retrofit projects, where even small dimensional deviations may affect installation progress. Boyu’s manufacturing process is suitable for customized boiler parts, spare parts replacement and project-based equipment supply.

Applications

Boyu economizers and air preheaters can be used in many industrial fields, including:

• Power plants

• Steel mills

• Coking plants

• Chemical plants

• Waste heat recovery systems

• CDQ boiler systems

• Biomass boiler systems

• Industrial furnace systems

• Environmental protection projects

• Boiler retrofit and maintenance projects

Different industries have different operating challenges. Steel and coking plants often require equipment that can handle harsh flue gas conditions, ash accumulation and continuous operation. Chemical plants may focus more on material selection and corrosion control. Power and waste heat recovery projects usually require strict manufacturing documentation and inspection control.

Boyu can provide project-based manufacturing support according to different industrial requirements.

Looking for a Boiler Economizer or Air Preheater Manufacturer?

If you are planning a boiler upgrade, heat recovery project, economizer replacement, air preheater replacement or customized boiler component order, Boyu can support your project from drawing review to manufacturing and delivery.

You can send us your drawings, technical specifications, material requirements or operating parameters. Our team will review the information and provide a suitable manufacturing proposal based on your project needs.

Contact Boyu to discuss your boiler economizer, air preheater, evaporator tube bundle, header or heat recovery equipment project.

山东博宇重工科技集团有限公司简介资质及省煤器+空预器业绩(1).pdf