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Advantages of spiral high frequency welding finned tube

Release time:

Jul 04,2023

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.

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.

At present, the spiral high frequency welding finned tube is welcomed and trusted by users in the current application market. Its application areas include waste heat recovery in electric power, metallurgy, cement industry and petrochemical industry. Due to the fast welding speed and strong self-cooling of the weldment, the product not only has a small heating area, but also is not easy to oxidize, so the weld has excellent structure and performance.

In fact, the spiral high-frequency welded finned tube not only meets the performance requirements of all aspects, but also significantly increases the heat exchange area. Analyzed from the working principle, the product uses the skin effect and proximity effect of high-frequency current to heat the outer surface of the steel strip and the steel pipe during the process of winding the steel strip on the steel pipe until it reaches a plastic state or melts. The welding is done under the pressure of the belt. We can think of this high-frequency welding as solid-phase welding. This welding method has obvious advantages in terms of product quality, productivity and automation.

In short, high frequency welded finned tubes are heat transfer elements. Its heat transfer area is several to dozens of times that of bare tubes, which can enhance heat transfer, reduce flow resistance and reduce metal consumption. Improve the economy and operational reliability of heat exchange equipment. The reason for having such excellent characteristics is that the structure of the high frequency welded finned tube is improved during design and manufacture. The finned tube itself is the steel strip wound around the finned tube. At the same time, a high-frequency welding process is used to firmly weld the fins to the tube to ensure the bonding strength between the tube and the fins. It has the advantages of high thermal efficiency, large heat dissipation area and long service life.

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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.