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How to choose the material of finned tube radiator

Release time:

Jul 04,2023

The choice of finned tube radiator material determines the life of the heat exchanger and the cost of the equipment. When we choose the material according to the working conditions, we can choose the radiator with high cost performance, thereby reducing the production cost of the enterprise.

The choice of finned tube radiator material determines the life of the heat exchanger and the cost of the equipment. When we choose the material according to the working conditions, we can choose the radiator with high cost performance, thereby reducing the production cost of the enterprise.

The fin part of the external finned tube radiator is generally the flow of air or flue gas. At that time, when there was air and no excessive moisture and I corroded the medium, the fin material was aluminum with good thermal conductivity. When the flowing medium is flue gas with corrosion components, stainless steel or ND steel is generally selected as the fin material.

The medium flowing in the finned tube radiator tube is generally steam, water, heat transfer oil, glycol, etc. Under normal working conditions, the medium is free of corrosion, and under good working conditions, carbon steel is selected as the base pipe.

Focus on hot spots

Characteristics and application fields of high frequency welding finned tube radiator

The base tube and the fin are firmly welded, the contact thermal resistance is small, the sheet distance is uniform, the wrinkle is small, it is not easy to accumulate dust, and the heat exchange efficiency is greatly improved. It is widely used in the waste heat recovery of heating furnaces, boilers, kilns, hot air furnaces and drying towers. Compared with traditional wound-tube air coolers, the outstanding advantages of high-frequency welded finned tube radiators are large heat dissipation area and cooling capacity. High, low air resistance, and its performance remains basically unchanged with the increase of service life.

How to buy SRZ finned tube radiator

The base tube of the traditional SRZ finned tube radiator is generally Φ 21*2 stainless steel or carbon steel tube, the height of the strip steel used for winding the sheet is 15mm, and the sheet distance is 5-8mm. The thickness of the sheet is generally 0.23-0.38mm.

Advantages of spiral high frequency welding finned tube

As a commonly used heat exchange element, high frequency welding finned tube needs to work for a long time under high temperature flue gas environment. For example, finned tubes used in boiler heat exchangers are used in harsh environments, high temperature and pressure, and corrosive environments. High-frequency welded finned tubes should have high-performance indicators, mainly including: corrosion resistance, wear resistance, low contact thermal resistance, high stability and anti-fouling ability.

Advantages of finned tube radiators

The finned tube radiator is not easy to ash. The cause of dust accumulation is the Karman vortex gap. Ash deposition will affect the flow of steam in the pipeline, and then affect the heat transfer efficiency of steam. After hot-dip galvanizing, the gap of the heat pipe is reduced, and it is not easy to form a dust accumulation angle, which affects the heat transfer efficiency. The integral finned tube radiator has stable performance and long service life. The thermal test has stable heat transfer performance and is suitable for various drying chambers and large and medium heating systems. The heat transfer efficiency is high, the corrosion resistance of the entire hot-dip galvanized layer is improved, and the service life is extended.

How to choose the material of finned tube radiator

The choice of finned tube radiator material determines the life of the heat exchanger and the cost of the equipment. When we choose the material according to the working conditions, we can choose the radiator with high cost performance, thereby reducing the production cost of the enterprise.