Heat-Supply System Based up on Industrial Waste Heat
Energy Saving and Environmental Protection Equipment and Engineering Services

Upholds the concept of "Benefit-Oriented Environmental Protection". Leveraging high-efficiency heat transfer and combustion technologies, the company specializes in "3 wastes" treatment, system energy-saving, and comprehensive energy utilization in the petrochemical, chemical, coal chemical, and new energy sectors. It offers end-to-end solutions, including feasibility studies, engineering consulting, design, integrated equipment manufacturing, EPC contracting, training, and startup services.

Chemical Materials and Clean Energy Equipment

Energy Saving and Environmental Protection Equipment and Engineering Services

Permafrost Treatment Engineering for Qinghai-Tibet Railway
Heat-Supply System Based up on Industrial Waste Heat

Centered on ultra-conductive technologies such as heat pipes and thermal rods, the company develops, designs, and manufactures high-efficiency energy-saving equipment and engineering services, focusing on energy recovery and utilization in industrial applications involving high pollution, abrasion, and corrosion. ‌Leveraging expertise in diverse heat transfer components and extensive project experience, the company customizes process designs for equipment based on specific application scenarios, effectively improving waste heat utilization efficiency. This helps clients reduce pollutant emissions while lowering primary energy consumption or generating economic benefits. ‌

The predecessor, "ShengNuo Heat Pipe Group," originated from Nanjing Tech University and continues fostering industry-academia-research synergy. Recognized as the National Heat Pipe Technology Research and Promotion Center’s supporting unit and a key drafter of national standards, the company has earned over ‌30 national/provincial awards‌ for innovations, completed ‌5 national and 5 provincial research projects‌, and holds ‌multiple patents and proprietary IP‌. Notable achievements include: Promotion and Application of Heat Pipe Technology in Waste Heat Recovery (First Prize, Ministry of Education, 1994)‌, Heat Pipe Steam Generation Device for Metallurgical Sintering Systems (National Torch Program)‌, Energy Optimization Technology in Electric Arc Furnace Steelmaking (First Prize, China Iron and Steel Association)‌, Low-Temperature Heat Exchange Island Technology (Jiangsu Key Promotion Catalog)‌, Deep Utilization of Industrial Flue Gas Waste Heat (Provincial Energy-Saving Catalog)‌, and Carbon Steel-Water Gravity Heat Pipe ("Jiangsu Premium Product" certification)‌.

Technical Origins
1976In 1976, pioneering researchers at Nanjing Tech University (formerly Nanjing Institute of Chemical Technology) initiated research on heat pipe applications.
1985In 1985, a breakthrough in the compatibility of carbon steel-water heat pipes was achieved, marking the start of industrial application of heat pipe technology in China.
Sunpower Technology (Jiangsu) Group Co., Ltd.
Successively Developed
  • China's first gas-to-gas heat pipe heat exchange
  • China's first heat pipe waste heat boiler
  • China's first separated double-pipe waste heat boiler
  • China's first metallurgical sintering waste heat recovery system
  • China's first industrial high-temperature heat pipe
  • China's first heat pipe standard
  • China's first heat pipe-based electric furnace waste heat recovery system
Heat Pipe Technology
Sunpower Technology (Jiangsu) Group Co., Ltd.
National Standard for 《Wickless Heat Pipes》
Working Principle and Features

High heat transfer capability (3000~10000 times that of copper and silver)

Both cold and hot media are outside of the tube (both sides can be intensified for heat transfer)

Heat source – Heat utilization effectively separated

High isothermal performance

One-way thermal conductivity (thermal diode)

National Standard for 《Wickless Heat Pipes》
Working Principle and Features
Radial Eccentric Heat pipe
The high-efficiency heat exchange element such as radial eccentric heat pipe can be applied in strong corrosive and worn environments and other harsh working conditions,which ensures the intrinsic safety and long-term operation of heat exchange equipment.
Radial Eccentric Heat pipe
Flexible Metal Enamel Technology
Anti-fouling, high thermal conductivity, anti-permeability, corrosion resistance, temperature resistance
Flexible Metal Enamel Technology
Zero Emission Thermal Field Management for Sintering Circular Coolers
Utilizing thermal management and efficient waste heat recovery, integrated power generation, heating, cooling, and seawater desalination, the system deeply utilizes various grades of waste heat from flue gas of sintering circular cooler, and achieves zero emissions, which support clients to save energy, reduce carbon emissions, and enhance economic benefits.
Zero Emission Thermal Field Management for Sintering Circular Coolers
Blast furnace Gas Boiler Low-temp. Heat Exchange Island Technology
Through integrated management of waste heat from low-temperature flue gas and multiple heat exchange media (blast furnace gas, air, condensate) in blast furnace gas boilers, this technology combines and arranges heat exchange modules according to operational demands, achieving deep graded waste heat utilization. By coordinating and complementing module performance, it maximizes the reduction of flue gas temperature (≤100℃) and substantially improves boiler thermal efficiency‌. This technology passed the 2023 “New Product and New Technology Appraisal” organized by the Jiangsu Department of Industry and Information Technology. The appraisal committee unanimously concluded that “On the whole, the technology has reached the international advanced level.” It was listed in the 2023 “Extreme Energy Efficiency Capabilities List” issued by the China Iron and Steel Association.
Blast furnace Gas Boiler Low-temp. Heat Exchange Island Technology
Distributed Power Generation Technology for Low-grade Waste Heat
This technology enables distributed recovery and utilization of vast low-grade steam in energy-intensive industries (e.g., petrochemicals, metallurgy, building materials, kilns) based on on-site spatial conditions. By integrating high-efficiency heat exchanger and low-grade steam power generation technologies, it significantly improves enterprise energy utilization rates and contributes to achieving energy conservation and carbon reduction goals. ‌
Distributed Power Generation Technology for Low-grade Waste Heat
Typical Projects
Waste Heat Power Generation Projects
High-efficient Waste Heat Recovery System
Energy saving heat exchanger
Waste Gas Treatment Projects
Baowu Chongqing Iron&Steel: waste heat recovery system of 3*360㎡ sinter cooler +2*15MW power generation project
Baowu Meishan Iron&Steel: waste heat recovery & cascaded reuse and waste gas zero emission treatment project for 450㎡ sintering machine with circular cooler
Qinyou Sintering Power Project
Sanshui Huaxing Glass: SS2# & SS3# Glass Kiln Low-temp. Waste Heat Power Generation Project
Baowu Chongqing Iron&Steel: waste heat recovery system of 3*360㎡ sinter cooler +2*15MW power generation project

Application of "High-Efficiency Anti-Degradation Waste Heat Boiler Technology"
‌Technical highlights:‌ Sealing modification and optimization of sintering annular cooler system & waste heat recovery boiler, coupled with steam turbine capacity expansion. Achieved domestic advanced level in waste heat power generation efficiency.‌

Baowu Meishan Iron&Steel: waste heat recovery & cascaded reuse and waste gas zero emission treatment project for 450㎡ sintering machine with circular cooler

As China's first project to achieve full annular cooler waste heat cascade recovery and flue gas zero-emission in sintering processes, it adopts proprietary technologies such as annular cooler thermal field management and high-efficiency waste heat power generation, meeting the requirements of deep energy-saving and environmental compliance in the annular cooler process.

Qinyou Sintering Power Project

By installing supplementary combustion furnaces, the project achieves synergistic utilization of sintering ring-cooler flue gas waste heat and excess blast furnace gas from the plant. This stabilizes the load of the sintering waste heat power generation unit, protects operational safety, and improves the utilization rate of waste heat and energy.

Sanshui Huaxing Glass: SS2# & SS3# Glass Kiln Low-temp. Waste Heat Power Generation Project

Asia's largest flue gas waste heat power generation project in the civil glass industry. It adopts Shengnuo's proprietary waste heat boilers and distributed power generation technology, addressing issues of conventional boilers and achieving comprehensive utilization of glass kiln waste heat.

Dalian West Pacific Petrochemical 2.8MMT/a Catalytic Cracking Unit Waste Heat Boiler
Jinneng Science&Technology: 1.5mt/a coking waste heat recovery system
Taiwan Glass Qingdao Glass: waste heat recovery system for 450t/d glass kiln
JSW Steel: waste heat recovery system for 508㎡ Sinter Cooler
Laiwu Steel: waste heat recovery system for 50T electric arc furnace of steel smelting
Sintering Main Flue Waste Heat Boiler
Sulfuric Acid Plant Waste Heat Boiler
Dalian West Pacific Petrochemical 2.8MMT/a Catalytic Cracking Unit Waste Heat Boiler

Integration of advanced regenerative flue gas-fuel gas combined high-intensity burners, combining CO incinerators with boilers to significantly improve CO combustion efficiency. Optimized process flow and boiler structure ensure safety, steam production, and prevention of ash accumulation and flue gas dew-point corrosion.

Jinneng Science&Technology: 1.5mt/a coking waste heat recovery system

Utilizes dual-pressure waste heat boiler + chimney standby air heating technology for deep waste heat recovery of coke oven flue gas. Proprietary anticorrosion and sealing technologies for coke oven flue gas heat exchange tubes ensure high efficiency, safety, and long-term operation.

Taiwan Glass Qingdao Glass: waste heat recovery system for 450t/d glass kiln

Adopts Shengnuo's unique high-efficiency heat transfer technology to achieve efficient waste heat recovery and system safety. Efficient heat recovery from glass kiln flue gas resolves ash blockage, wear, and corrosion issues, ensuring long-term operation.

JSW Steel: waste heat recovery system for 508㎡ Sinter Cooler

A boiler system designed and manufactured according to Indian IBR standards, providing a model demonstration for JSW Steel Group in energy conservation, waste heat recovery, and carbon reduction.

Laiwu Steel: waste heat recovery system for 50T electric arc furnace of steel smelting

Pioneering use of high-efficiency heat transfer coupled with advanced soot-blowing technology to solve the challenges of recovering high-temperature, high-dust, and complex alternating flue gas waste heat, laying a foundation for low-energy steelmaking in EAFs.

Sintering Main Flue Waste Heat Boiler

Innovative series of waste heat recovery devices effectively recover steam from sintering flue gas at the main flue windbox. Reduces flue gas temperature entering dust collectors, improves dedusting efficiency, enables adjustable heat exchange, controls pre-dedusting flue gas temperature, and prevents low-temperature corrosion in dedusting systems.

Sulfuric Acid Plant Waste Heat Boiler

A heat recovery device for the double conversion and double absorption process in sulfuric acid plants. Shengnuo's dedicated heat pipe waste heat boiler features high heat transfer efficiency and effective isolation of sulfur-containing gas from boiler water, ensuring intrinsic safety and stable operation.

Shagang: BF gas preheater and air preheater for 5800m³ BF hot blast stoves
Taiwan Chemical Heater Flue Gas Dehumidification System
Zhenhai Refining Expansion Project Gas-Gas Heat Exchanger
Hyundai Steel: BF gas preheater and air preheater for 5250m³ BF hot blast stoves
ExxonMobil Baton Rouge Refinery Combined Air Preheater
Sulfur Recovery Split Heat Exchanger
Petrochemical Heater Air Preheater
TISCO No.4 Sintering Main Flue Gas Cooler
Rizhao Xuri 135MW BFG Power Unit Low-Temperature Heat Island
Suteng Power Plant #1 Boiler Low-Low Temperature Economizer Retrofit
Shagang: BF gas preheater and air preheater for 5800m³ BF hot blast stoves

Employs high-efficiency split-phase heat exchange technology to achieve efficient heat transfer between flue gas, gas, and air. Flexible equipment layout, online performance repair capability, and complete separation of cold/hot fluids ensure "intrinsic safety", especially suitable for large BF hot blast stove systems.

Taiwan Chemical Heater Flue Gas Dehumidification System

The first petrochemical heater plume abatement project. By fully utilizing waste heat to increase purified flue gas temperature before emission, it eliminates "white smoke", reduces desulfurization tower water consumption, improves desulfurization efficiency, and ensures safe operation of flue gas tail-end equipment.

Zhenhai Refining Expansion Project Gas-Gas Heat Exchanger

A large-scale combined phase-change heat exchanger in petrochemical units. High-efficiency split-phase heat exchange technology ensures zero leakage between process gas fluids while maintaining efficient heat transfer, with proven applications in multiple similar units.

Hyundai Steel: BF gas preheater and air preheater for 5250m³ BF hot blast stoves

A gas-air preheating project for export to South Korea's large blast furnace, awarded Hyundai Steel's "Premium Supplier" title. Heat pipe technology enables efficient heat exchange, while patented sealing ensures effective isolation of cold/hot fluids.

ExxonMobil Baton Rouge Refinery Combined Air Preheater

A heat pipe air preheater replacing original plate heat exchangers in ExxonMobil's U.S. refinery heating furnaces. This marks the application of Shengnuo's heat pipe technology in North America, supporting market expansion and entry into Mobil's global supply chain.

Sulfur Recovery Split Heat Exchanger

Shengnuo's high-efficiency split-phase heat exchanger with superior thermal conductivity, isothermal performance, long-distance heat transfer, and temperature control. Flexible layout adapts to equipment and pipeline arrangements, achieving "zero leakage" between cold/hot sides.

Petrochemical Heater Air Preheater

Since Shengnuo first applied heat pipe technology to petrochemical heater waste heat recovery, long-life heat pipes have been widely used in 500+ units (e.g., atmospheric/vacuum distillation, hydrocracking, delayed coking, reforming, aromatics, PX, Szorb, hydrogen production).

TISCO No.4 Sintering Main Flue Gas Cooler

Specialized heat exchange structure and anticorrosion technologies for high-dust, corrosive sintering flue gas. Combined with wall temperature control and efficient soot-blowing measures, it achieves effective cooling and long-term operation, supporting flue gas purification and environmental compliance.

Rizhao Xuri 135MW BFG Power Unit Low-Temperature Heat Island

Reduces BFG boiler exhaust temperature below 100°C, significantly improving thermal efficiency. This domestically pioneering technology, internationally advanced, passed Jiangsu Provincial Department of Industry and IT appraisal and was listed in China Steel Association's "Extreme Energy Efficiency" catalog.

Suteng Power Plant #1 Boiler Low-Low Temperature Economizer Retrofit

A 1000MW coal-fired unit project adopting innovative ultra-long radial heat pipe technology. Resolves corrosion, leakage, and ash blockage in existing products, achieving intrinsic safety. Certified by CSEE as "globally pioneering with leading comprehensive performance."

Hengli Petrochemical Acetic Acid Tail Gas Recovery System
Delong Steel BF Slag Granulation Steam Elimination Project
Hengli Petrochemical Acetic Acid Tail Gas Recovery System

A high-value-added energy-saving and environmental project. Utilizes novel low-NOx combustion technology to incinerate tail gas and recover heat via dedicated boilers, achieving "zero emission" of petrochemical waste gas.

Delong Steel BF Slag Granulation Steam Elimination Project

Integrates spray cooling, reheating, and efficient demisting technologies to eliminate "white smoke" from high-temperature slag granulation steam. Simultaneously recovers waste heat and improves local environmental conditions.