Deep Cooling Type Nickel-Based Brazing Finned Tubes for Low-Pressure Economizers

Nickel-Based Brazing Finned Tubes Basic Profile

Market Demand: Over the past two years, these economizers have been highly favored by major domestic power plants in China. This is primarily due to the rising coal prices, which have exceeded 1,000 yuan per ton, making plant transformations essential.

Functionality: These economizers are installed at the tail end of boiler flues, reducing smoke temperature from approximately 130°C to 90-100°C, achieving a temperature drop of 30-40°C. This results in coal savings of 3-5g per kilowatt-hour.

Economic Benefits: For example, a 200MW power plant in Shandong running for 5500 hours annually can save over 4000 tons of coal, translating to more than 400 million yuan in savings per year. The investment in these systems can be recovered within 1.5 years, with a lifespan of eight years, ensuring substantial long-term benefits.

Current Use: These products are already in operation in over a dozen power plants across the country, with demand significantly increasing this year. Only a few manufacturers, such as Jiaozuo Guo Energy, Tianjin Huaneng, and Jiaozuo Zhongzhou, currently produce these economizers.

Nickel-Based Brazing Finned Tubes Production Capacity

Jiaozuo Guo Energy: Produced six sets (for 300MW and 200MW units) this year, with an output value of about 900 million yuan.

Jiaozuo Zhongzhou: Expected to produce four sets annually.

Tianjin Huaneng: Production capacity is currently unknown.

Demand and Collaboration: The current production capacity is insufficient to meet the needs of domestic power plants. Collaborations are ongoing with institutions such as Tsinghua University, Shandong University, China Huaneng Clean Technology Company, Alexander Walter Environmental Engineering Company, and design institutes in Jiangsu and Hangzhou.

Nickel-Based Brazing Finned Tubes Technical Introduction

Core Element: The low-pressure economizer uses nickel-based brazing and diffusion layer fin tube heat exchanger components. This technology ensures almost zero contact resistance between fins and tubes, providing stable heat transfer, erosion resistance, and corrosion resistance.

Design Advantages: The finned tube heating surface significantly expands the economizers surface area, allowing for a compact and flexible layout within limited space in existing power plant flues. This design enables efficient integration without requiring extensive modifications to existing infrastructure.

Nickel-Based Brazing Finned Tubes Market Prospects

The market prospects for these economizers are very promising, with an expected product lifespan of over 10 years. The increasing demand and the significant economic benefits they offer make them a vital addition to power plant operations.

The deep cooling type nickel-based brazing finned tubes for low-pressure economizers represent a significant advancement in power plant efficiency and cost savings. With high coal prices driving the need for more efficient solutions, these economizers offer a compelling value proposition for power plants looking to reduce operating costs and improve overall performance.

Nickel-Based Brazing Finned Tubes