Lord Fin Tube--T.S. Industrial Co.,Ltd

The  Studded Tubes  (also known as needle tube) is a cylindrical pin arranged in square or hexagon and welded on the surface of the heat exchange tube equally. The high-efficiency and energy-saving pin tube heat exchange tube group is formed by the assembly and welding of the square or hexagon heat exchange pin tube. Because the pin rib of the pin tube is a cantilever structure with compact structure, the pin rib vibrates under the impact of the air flow, making it difficult for soot to accumulate. In addition, the strong turbulence and erosion of the flue gas make the pin tube heat exchange element have high heat transfer efficiency and strong self-cleaning ability The Studded Tubes is especially suitable for the compact structure of waste heat boiler, oil fired boiler, gas fired boiler and oil heater. Under the same heat exchange, its weight and overall dimension have a significant reduction. Compared with other conventional enhanced heat transfer boiler tubes, the anti ...

In order to understand the application conditions of finned tube, it is necessary to understand the heat transfer process and definition during the operation of laser welded finned tube . The heat transfer of the whole equipment refers to the process of heat transfer from hot fluid to cold fluid through solid wall, and also includes the heat transfer process of tube wall. The strength of the heat transfer process and the size of the heat transfer mainly depend on the characteristics of the convective heat transfer on both sides of the wall. The larger the temperature difference required for the unit heat transfer of the laser welded finned tube, the greater its thermal resistance will become, which is equal to the reciprocal of the heat transfer coefficient, indicating that the greater the heat transfer coefficient, the smaller its thermal resistance. On the contrary, the smaller the heat transfer coefficient, the greater its thermal resistance. The heat transfer coefficient of the ...

Serpentine bend is a special difficult pipe fitting, which can be divided into cold bend and hot bend. Generally, the CNC pipe bending is mainly the products processed by CNC machine, and the processing technology is mainly cold bending, for example, the stainless steel pipe bending is processed by this kind of processing technology. 1： According to the drawing provided by the user, set the parameters of CNC machine. Second: put raw materials into machinery for processing. Third: polish the finished products. If the processing requirements of stainless steel bend are not strict, the common bending machine can meet the requirements. This machine is relatively simple to operate. The bending machine is divided into manual bending machine, hydraulic bending machine and numerical control bending machine. The manual bending machine is divided into mechanical manual bending machine and electric manual bending machine. The hydraulic bending machine can also be divided into: torsional shaft...

ASTM A423/A423M Standard Specification for Seamless and Electric-Welded Low-Alloy Steel Tubes 1. Scope 1.1 This specification 2 covers minimum-wall-thickness, seamless and electric-resistance welded, low-alloy steel tubes for pressure containing parts such as economizers or other applications where corrosion resistance is important. 1.2 The tubing sizes and thicknesses usually furnished to this specification are 1 ⁄ 2to 5 in. [12.7 to 127 mm] in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm] inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification. 1.3 Mechanical property requirements do not apply to tubing smaller than 1 ⁄ 4 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness. 1.4 An optional supplementary requirement is provided and, when desired, shall be so stated in the order. 1.5 The values stated in either SI units or inch-pound units are to...

Laser welding finned tube is one of the earliest and most successful inventions in the process of improving tube heat transfer. When used, this method is still all the various heat transfer methods of laser welding finned tube The most widely used one, not only suitable for single-fin tube heat exchangers, but also widely used in power, chemical, petrochemical, air conditioning and refrigeration engineering. Laser welded finned tubes  are widely used in chemical engineering, power engineering, air conditioning engineering, petrochemical engineering, and refrigeration engineering, such as surface air coolers, air heaters, and fan coils used in air conditioning engineering. The evaporator of the air cooler and the evaporator of the frost-free refrigerator used in the refrigeration project. Laser welding finned tubes are not only suitable for the flow of single-phase fluids in the process of use, but their equipment is also of great value to the heat of phase transformation. Mos...

The air cooler uses ambient air as a cooling medium, and the fan forces air to sweep across the finned tube, so that the high-temperature process fluid in the tube is cooled or condensed. The air cooler unit consists of three basic parts:  finned tube bundle , fan, frame, and auxiliary parts such as shutters, maintenance platform, and ladder. Using natural air as a cooling medium saves precious water resources, reduces the discharge of industrial sewage, and protects the natural environment. Widely used in chemical industry, petrochemical, thermal power plant, polycrystalline silicon, polyvinyl chloride, metallurgical cement, production line waste incineration power plant, etc. The development of the air cooler has gone through three stages, from the steel-aluminum composite round tube fins of the 50s to the  elliptical finned tube  in 70s, and the large flat tube finned tubes of the 90s. It can be said that the air cooler has made great progress. In todays society, e...