High Frequency Welded Fin Tube TP347 Stainless Steel Tube 11Cr Studed Pin for Boiler

High Frequency Welded Fin Tube TP347 Stainless Steel Tube 11Cr Studed Pin for Boiler

HFW/Rigid Finned Tube is manufactured by wrapping a continuous fin strip in a spiral on the tube. HF resistance welding typically uses a frequency of 400 kHz. The fin is wrapped around the tube and continuously welded. The fin strip is wound spirally on the tube and continuously welded with high frequency electrical process to the base tube along the spiral root. The fin strip is held under tension and confined horizontally as it is moulded around the tube， thus ensuring that the strip is in strong contact with the surface of the base tube. Continuous welding is applied at the point where the fin strip begins to bend around the tube diameter using the gas metal arc welding process.

For a given tube or tube size， the required heat transfer surface area per unit length of tube can be obtained by determining the appropriate fin height， fin thickness and/or number of fins per metre of length.

底管细节

钢管直径：最小外径 20 毫米，最大外径 219 毫米。

管材厚度：最小 2 毫米，最大 16 毫米

钢管材料：碳钢、不锈钢、合金钢、Corten 钢、双相钢、超级双相钢、镍钴合金、高铬高镍和镍钴合金、CK 20 材料及其他材料。

Fin Details

鳍片厚度：最小0.8 毫米至最大4 毫米

鳍片高度：最小 0.25 英寸（6.35 毫米）至最大 1.5 英寸（38 毫米）

鳍片密度 : 最低每米 43 根鳍片，最高每米 287 根鳍片每米 287 根

Material : Carbon Steel， Stainless Steel(ss304， 11Cr， 13 Cr)， Alloy Steel， Corten steel， Duplex Steel and Incolloy.

Features of Studed tubes

• Compact as it takes up little space
• Highly durable
• Preferred over finned tubes as a heat transfer system
• Higher performance

Seamless steel tubes are mainly used in boilers and furnaces. Mostly used in corrosive environments. In the petrochemical industry， the denser crude oil passes through the spiked tube. Heat is generated from the outside of the tube. At the other end of the tube， we get the liquid product， which is subsequently sent for processing.

Studded tubes are also used in water tube boilers. They help to heat water. Studded tubes are oval in shape and are welded to the boiler.

The use of threaded pipes reduces the use of bare pipes as the heat transfer surface of one threaded pipe can replace the heat transfer surface of 4 to 10 bare pipes.

Threaded tubes can be used where harsh fuels are used that can cause damage to the environment. To prevent corrosion， the outer surface of the studded pipe can be coated or treated with a protective layer.

Riveted tubes are also used in soda ash boilers and fluidised bed reactors as they minimise erosion.

They are also used in steel mills， air coolers， power plants， heat exchangers， etc.

带钉管的尺寸和材料

应用

Boiler， superheater， gas furnace burner， heat exchange equipment， chemical equipment， heat recovery in the petrochemical industry， in the fields of convection furnaces， vacuum generators for chemical processing etc..