The Finned Tube Heat Exchanger has the characteristics of small thermal resistance, good heat transfer performance, high strength, small flow loss, strong anti-corrosion performance, and long working life. Air. Widely used in light industry, construction, chemical industry, machinery, textile, printing and dyeing, electronics, food, starch, metallurgy coating, minerals, drying equipment and other industries
Finned Tube Heat Exchanger air steam heat exchanger is mostly processed by seamless steel tube plus aluminum Finned cooling Tube. High-quality national standard seamless steel tube is selected as the base tube, and high-quality industrial aluminum tube is used for extrusion of external aluminum fins. Forming, so that the external aluminum Fins and the internal base tube are tightly combined and integrated. In the case of long-term use, it can also ensure that there will be no loosening phenomenon, making the cooling effect more Stable and reliable.
In the production of welded Finned Tubes in the membrane water wall of boilers in China, most of them adopt submerged arc welding and CO gas shielded welding welding process, and the amount of Finned Tubes produced by High Frequency resistance welding process is very small. The welding quality of the frequency-Welded Finned Tube and the fins produced by other methods are improved, and the extrusion speed of the Fins and steel pipes is increased accordingly, which is beneficial to tucking the two edges to be welded that have been heated to the welding temperature; the metal layer And oxide inclusions are extruded out of the weld area, making it easy to obtain high-quality welds. However, under a certain power supply, the increase of welding speed has a certain range.
1. Overview of steel aluminum composite finned tube:
The processing technology of steel aluminum composite Finned Tube is to first process the double metal composite tube on the aluminum tube and copper tube, and then, after mechanical cold rolling, make use of the physical characteristics of aluminum tube, and use the tube centered on the steel tube and the Fin Tube closely combined with the aluminum needle made by cold rolling. When the steel aluminum composite fin tube radiator is wet cooled in the heating and air-conditioning project, it is easy to remove the condensation water on the external surface of the fin, and it is not easy to produce dust and dirt in the drying heating and other heat exchanges.
2. Characteristics of steel aluminum composite finned tube:
1. Solid combination, small thermal resistance and good heat transfer performance.
High strength and small flow loss.
3. It has strong anti-corrosion performance, is not easy to deform under long-term cold and hot conditions, and has a long service life.
3: Structural diagram of steel aluminum composite finned tube:
4. Performance table of steel aluminum composite Finned Tube specification:
Finned Tube radiator (radiator, also known as heat discharge, air heater and air heat exchanger) is the main equipment of heat exchanger, including cooling air with refrigerant, heating air with heat medium or recovering air waste heat with cold water. Access
Warm water, steam or high-temperature heat transfer oil can heat the air, and salt water or low-temperature water can be used to cool the air.
Finned Tube radiator can be widely used in light industry, construction, machinery, fiber, printing and dyeing, electronics, food, starch, medicine, metallurgy, coating and other industries, including hot air heating, air conditioning, cooling, condensation, dehumidification, drying, etc.
Heating radiator: one of radiator applications, including heating fan and heater.
Finned tube radiator structure: heat dissipation, access browser, frame.
The radiating exhaust pipe is composed of a heating pipe, which is composed of a base and a pin. The quality of the heat pipe determines the heat transfer effect, the arrangement of the heat pipe affects the air resistance, and the installation method of the heat pipe determines the resistance to temperature difference (thermal expansion and contraction).
Common installation methods of Finned Tube radiator: frame fixing (SRZ, SRL, S), frame support (GL, U).
The frame is fixed, and the heating tube is directly welded to the frame box. The structure is simple, and it is generally used for fruit bodies or refrigerants below 180. Frame support, heat pipe is welded with connected pipe (or elbow) through frame perforated plate, usually used for 180C.Chiller Finned Tube
The Spiral Finned Tube is very simple and economical in the process of installation. Its equipment length can reach 6 meters, reducing the connection points, making the installation more economical and fast, and reducing the probability of water leakage at the connection. The maintenance is simple. After the installation of high-frequency welding spiral Finned Tube, the maintenance is basically unnecessary.
The spiral Finned Tube has High Efficiency . Its heat dissipation area is more than 8 times that of the smooth Tube when it is used. During the operation, its interior will be more smooth, its internal water flow resistance is small, and its service life is long when it is operated. The mechanical strength of the Finned Tube is high, and the tensile strength is more than 200Mpa. The inside and outside of the Tube are all hot-dip galvanized. Material of weldable fins: carbon steel, corrosion-resistant steel, Stainless steel, alloy steel. Form of weldable fins: solid teeth, open teeth.
Spiral Finned Tubes can be manufactured by various methods in the process of manufacturing. At present, finned tubes used in heat exchange equipment such as boilers and pressure vessels mainly have the following manufacturing methods:
High frequency resistance welding spiral finned tube
High frequency resistance welding of spiral Finned Tube is to introduce high power high-frequency current into the weldment, use the resistance heat generated by the current passing through the contact surface of the weldment joint and the adjacent area to make the welding contact surface reach the molten or semi molten plastic state, and then apply appropriate pressure to the welding contact surface to complete the welding of finned tube.
1. Overview of steel-aluminum composite finned tubes:
The processing technology of steel-aluminum composite finned tubes is to process bimetallic composite tubes on aluminum tubes and copper tubes first, and then, after mechanical cold rolling, use the physical properties of aluminum tubes to use steel tubes as the center and finned tubes with The cold-rolled aluminum pins are tightly bonded. When the steel-aluminum composite finned tube radiator is wet and cold in heating and air-conditioning projects, it is easy to remove the condensed water on the outer surface of the fins, and it is not easy to produce dust and dirt in heat exchange such as dry heating.
2. Features of steel-aluminum composite Finned Tubes:
1. Solid combination, small thermal resistance, good heat transfer performance.
High strength, low flow loss.
3. Strong anti-corrosion performance, not easy to deform under long-term hot and cold conditions, and long service life.
3: Schematic diagram of steel-aluminum composite Finned Tube structure:
4. Specifications of steel-aluminum composite Finned Tube performance table:
Finned Tube radiators (radiators, also known as radiators, air heaters, and air heat exchangers) are the main equipment of heat exchangers, including cooling air with refrigerant, heating air with heat medium, or recovering air waste heat with cold water . access
Warm water, steam or high temperature heat transfer oil can heat the air, and brine or low temperature water can cool the air.
Q: Why buy from us instead of from other suppliers? A: professional experience in process manufacturing, timely delivery and long-term after-sales service. High quality products fully meet any specific requirements. We provide one-stop solution services and competitive prices.
Q: Are your products customized?
A: Yes, we can customize new products according to your requirements or drawings.
Q: what are your terms of payment?
A: T / T, PayPal
Q: how to ensure quality?
A: before mass production, the final inspection is always carried out before shipment;
Since the establishment of the company, it is our constant pursuit and commitment to meet our customers with science and technology and humanized services based on advanced science and technology as the starting point and the needs of customers.
Finned tube heat exchanger adopts the method of adding finned tube heat exchanger, which greatly improves the heat emission of radiator fins and further improves the role of heat emission of radiator fins. The finned tube heat exchanger is welded with low-carbon environment-friendly steel pipes, which is durable and emits heat for a long time. Our inspection and maintenance during use are still helpful to the service life of radiator fins.
About Finned Tubes
Laser Welded Finned Tubes in which the fins (solid or serrated) are helically wound and continuously welded to the tube by a fully automatic laser fin machine. Produced in strict accordance with enterprise standards, with sophisticated technology, excellent performance, lower heat input, and improved heat flow efficiency and corrosion resistance.
A finned tube is a tube with many fins around the outer surface. These fins act as filters and mechanisms to transfer heat from the material inside the tube to the outside space and vice versa. Finned Tubes are used in applications that require the transfer of heat from a hot fluid to a cooler fluid through the tube walls.
♦ Laser Welded Finned Tube
♦ Extruded Finned Tube
♦ High Frequency Welded Finned Tube
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