Finned tube heat exchanger

Finned tube heat exchangerNot only does it have the inherent characteristics of high heat transfer, small temperature difference, small weight, small volume, and rapid thermal response of heat pipes, but it also has the features of easy installation, simple maintenance, long service life, low resistance loss, easy separation of inlet and outlet air ducts, and no leakage from each other

Specifically, finned tube heat exchangers have the following characteristics.

1. Good overall heat transfer performance.Finned tube heat exchangerBy relying on the phase change of the internal working medium to achieve heat transfer, the fins on the outside of the heat pipe greatly increase the heat transfer area,

Greatly reducing the convective heat transfer resistance on both sides, it is very economical for the recovery of low-grade thermal energy; In addition, finned tube heat exchangers are easy to achieve outside fluid tubes

Hanging downThe straight sweep flow and pure counterflow flow of cold and hot fluids increase the average temperature and pressure of heat transfer between cold and hot fluids without changing the inlet temperature of the fluids.
2. The heat transfer surfaces on both sides of the cold and hot fluids can be freely arranged.Finned tube heat exchangerThe heat exchange element is a finned tube, and the length and fin ratio of its evaporation and condensation sections are given

The heat transfer rate, fluid temperature, flow rate, and the properties and cleanliness of each fluid are independently determined on each side, and the two sides are not interrelated. Ensure the fins structurally

Tube heat exchangers can be used for heat transfer between two fluids with vastly different temperatures, flow rates, and cleanliness.
When the heat transfer surface is locally damaged, it can ensure that the two fluids do not mix with each other During the operation of the finned tube heat exchanger, the cold and hot media are completely separated

During the process, a single finned tube may be damaged due to wear, corrosion, overheating, and other reasons, and only a single heat pipe may fail, without mixing of cold and hot fluids,

And it is easy to replace a damaged single finned tube. Therefore, it is more suitable for heat exchange applications involving flammable, explosive, corrosive and other fluids, and has high reliability.
4. It has a high ability to prevent dust accumulation and blockage. The smoke flows horizontally outside the tube for heat transfer, and the disturbance of the smoke is enhanced. In addition, the finned tubeThe wall temperature is high, and the outside of the tube remains constant

Dry state, therefore it will not coke and should not stick to dust, which can effectively prevent blockage.
5. It has efficient resistance to low-temperature corrosion WhenFinned tube heat exchangerWhen used for waste heat recovery of corrosive flue gas, the heat transfer area can be adjusted to adjust the heat exchange tubes

Tube wall temperature. Try to avoid the largest corrosion area of the heat exchange tubes as much as possible.