What are the application areas of spiral finned tubes?
With its efficient heat transfer and compact structure, spiral finned tubes have become core components in the fields of energy, chemical industry, metallurgy, etc., from boiler waste heat recovery to food drying, improving industrial efficiency and energy utilization in all aspects.
With its efficient heat transfer performance, compact structure and good stability, spiral finned tubes are widely used in multiple industrial fields and livelihood scenarios.
The following are its main application areas and specific scenarios:
I. Energy and power industry
1. Boiler system
Economizer: Recover the waste heat of flue gas at the tail of the boiler, heat the feed water, reduce the exhaust temperature, and improve the thermal efficiency of the boiler (such as coal-fired and gas-fired boilers).
Air preheater: Heat the air required for combustion, enhance fuel combustion efficiency, and reduce pollutant emissions (such as power station boilers and industrial boilers).
Waste heat boiler: Recover waste heat from industrial waste gas (such as blast furnace gas in steel plants and tail gas from chemical plants), convert it into steam or hot water, and realize secondary energy utilization.
2. Heat exchangers and condensers
Power plant circulation system: used for turbine condensation, steam cooling and other links to improve thermal cycle efficiency.
Waste heat recovery device: such as the waste heat recovery system of gas turbines and internal combustion engines, which converts the heat of high-temperature exhaust gas into usable energy.
2. Chemical and petrochemical industries
1. Chemical reaction and separation equipment
Reactor preheating/cooling: In reactions such as synthetic ammonia, oil refining, and pharmaceuticals, the material temperature is quickly adjusted through finned tubes to control the reaction rate.
Distillation tower and distillation equipment: used for top condensers and bottom reboilers to enhance gas-liquid two-phase heat exchange and improve separation efficiency.
2. Oil and gas processing
Crude oil heating and cooling: heating crude oil in refineries to promote fractionation, or cooling finished oil to reduce storage temperature.
Gas purification device: such as heat exchangers in the process of natural gas dehydration and desulfurization, removing impurities and recovering heat.
3. Application in corrosive environment
Stainless steel or special alloy finned tubes: used to treat strong acid, strong alkali or high salt media (such as chemical wastewater treatment, offshore platform equipment), resist corrosion and ensure long-term operation.
3. Metallurgy and steel industry
1. High-temperature flue gas waste heat recovery
Steel rolling workshop heating furnace: recover high-temperature flue gas heat, preheat combustion air or produce hot water, and reduce energy consumption per ton of steel.
Sintering machine / blast furnace system: recover sintering ore cooling waste gas and blast furnace gas waste heat through finned tube heat exchanger, which is used to preheat fuel or generate electricity.
2. Cooling and lubrication system
Roller cooling: quickly take away the heat of the roller during rolling through the finned tube radiator to ensure equipment stability.
Hydraulic oil cooling: in the hydraulic system of metallurgical machinery, cool the high-temperature oil to prevent the system from overheating and failure.
4. HVAC and construction industry
1. Heating system
Radiator/radiator: replace traditional light tubes, increase heat dissipation per unit area, and reduce installation space (such as residential, office buildings, and factory workshops).
Floor radiant heating: Some systems use finned tubes to enhance the heat exchange between hot water and the floor and improve heating uniformity.
2. Central air conditioning
Condenser and evaporator: In the chiller, finned tubes accelerate the heat exchange between the refrigerant and the air/water, improving the cooling efficiency (such as commercial central air conditioning, data center cooling system).
Air handling unit (AHU): used to heat or cool fresh air and adjust indoor temperature and humidity (such as large public buildings such as airports and shopping malls).
5. Food and light industry
1. Drying and drying equipment
Food processing: For example, the drying line of potato chips, grains, and tea leaves uses steam or thermal oil to heat the finned tubes to provide a uniform heat source and ensure food quality.
Wood processing: Finned tube radiators are used in wood drying kilns to accelerate water evaporation, shorten the drying cycle, and prevent deformation.
2. Sterilization and thermal processing
Pasteurization equipment: In milk and beverage production lines, the finned tube heat exchanger is used to quickly heat up or cool down to achieve low-temperature sterilization.
Paper and textile industry: used in paper drying, thermal setting of printed and dyed cloth, etc., to provide a stable heat source and improve production efficiency.
