What are the advantages and disadvantages of spiral heat exchanger?

Advantages

Efficient use of Temperature Difference

The fully countercurrent system(TYPE-1) is able to exchange heat even if temperature difference is extremely close. Most effective saving energy is possible.

Low Fouling (Self Cleaning)

The rotary current of spiral heat exchanger possesses the property of scraping off and spilling the dirty sedimentation(stagnation solid). Even though scales adhere to it, the cross-section of the adherent part becomes smaller, the flow-speed would be quickly and bring the function of self cleaning by single-pass flow.

High Overall Heat Transfer Coefficient

Spiral flow passage easily creates turbulent flow.Optimum flow speed can be gained by selecting the most suitable spiral channel. High Overall Heat Transfer Coefficient can be achieved.

Easy Maintenance

The heat transfer part is easily accessed and checked. It is possible to easily do by removing the cover of the both ends, for the inspection of the inside.The maintenance cost of Spiral Heat Exchanger is much lower than others.

Space Saving

SHE equipment volume is far compact comparing to Tubular Heat Exchanger. Plant space can be saved and plant initial cost can be saved.