Static mixer heat exchanger is suitable for challenging media for example
If a standard pipe and plate heat exchanger is no longer working properly, the heat exchanger spiral elements come into the picture. Stretching and folding over the liquid layers has a positive effect on the heat transfer.
Some applications for specific industries
Heat exchanger for viscous liquids like polymers
- Cooling a polymer to a constant temperature in the PET mill feed
- Cooling of hot melt
- Polymer heat exchanger for mill
Heat exchanger for food
- Heating and cooling foods mildly
- Very suitable for viscous process media such as starch
Heat exchanger with an insulating sheath
The heat exchangers can be supplied optionally with an insulating sheath.
The heating and/or cooling of liquids in a continuous process is a frequent operation in the chemical industry but also in the food industry.
The static mixer heat exchanger
The reliable alternative to a plate heat exchanger, scraped heat exchanger, tube heat exchanger or spiral shaped tube heat exchanger.
The following types of stationary heat exchangers can be distinguished:
Plate heat exchanger
Tube heat exchanger
Usability of heat exchangers; working pressure, process temperature and viscosity
The usability of each type of heat exchanger is largely determined by the applied working pressure, the process temperature and the corresponding viscosity of the process medium. The desired capacity is achieved by choosing a certain construction size or by linking several heat exchangers in parallel.
The heat exchanger types mentioned above are placed in order of increasing usability, the heat exchanger with static mixing elements is the most usable.
Is a static mixer heat exchanger better for viscous media than a plate heat exchanger?
In applications where it is about the thermal treatment of viscous process media and processes where, for example, starch can be gelatinized, a system with a wider applicability should be chosen. . The plate heat exchanger in particular, is limited in the allowable work pressure. Pressures above about 6 bar are too high for this type, while in processes where long heating and cooling down schedules are included, the limit is reached quickly.
Better heat exchange than spiral shaped and tube heat exchanger because of the lack of tunnel effects
The applicability limits of the tube heat exchanger are mainly during the cooling of viscous process media, where - as a result of the tunnel effect occurring by fouling product - an insulating layer of product is formed on the inner wall, which can severely impede the transfer of heat. In addition, the remaining insulating product layer may have a negative effect on the quality of the final product. The spiral shaped heat exchanger has similar problems in this field of application to the tube heat exchanger. The static mixer heat exchanger has in relation to the above mentioned heat exchangers the great advantage that the temperature differences over the cross section of the flow surface are reduced, so that no insulating layer is formed and therefore this type is very useful for heat exchange in process media with a high viscosity.