Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped floor heat exchangers have been used for difficult heat switch applications involving viscous fluids or where fouling is an issue, similar to evaporation processes. The most typical type of scraped floor warmth exchanger (SSHE) uses a rotating shaft with blades or augers which scrape the surface of the tube. The well-liked HRS R Series is predicated on this approach. However, the design is not optimum for every scenario, and so HRS developed the Unicus Series of reciprocating scraped floor heat exchangers.
The Unicus Series of reciprocating scraped floor warmth exchangers is ideal for viscous products similar to cream and tomato juice, in addition to merchandise containing fruit items or particles.

The HRS Unicus Series is specifically designed to offer the improved heat transfer of a standard SSHE, however with a delicate motion to preserve the quality and integrity of delicate meals merchandise such as cheese, yoghurt, ice cream, meat paste, and products containing whole items of fruits or vegetables. Over the years, numerous totally different scraper designs have been developed, which means that every software, from processing curds to heating sauce or pasteurizing fruit compotes could be dealt with in the most efficient yet gentle method potential. Other functions where the Unicus Series has been helpful include handling meat slurry and mince, and processing yeast-malt extracts.
The hygienic design makes use of a patented stainless-steel scraping mechanism that moves hydraulically forwards and backwards inside every interior tube. The movement performs two key capabilities: it minimizes potential fouling by maintaining the tube wall clean and in addition creates turbulence inside the material. Together, pressure gauge 4 นิ้ว ราคา increase the speed of heat transfer in the materials, creating a highly efficient course of that is best for viscous and high fouling supplies.
Since they’re controlled individually, the speed of the scrapers can be optimized for a specific product being processed, in order that materials which are vulnerable to shear stress or stress harm (such as lotions and custards) can be dealt with delicately to stop injury while nonetheless offering excessive ranges of warmth transfer. The Unicus Series has proven particularly useful in handling viscous food products where texture and consistency are essential attributes. For example, some lotions or sauces might shear when subjected to extra pressure, making them unusable. The Unicus implies that effective warmth switch may be carried out at low pressures which overcomes these problems.

Each Unicus SSHE consists of three components: a hydraulic cylinder and energy pack (although in smaller models a pneumatic cylinder may be equipped instead), a separation chamber to make sure hygiene and preserve product separation from the motor, and the warmth exchanger itself. The heat exchanger consists of numerous tubes, each of which accommodates a stainless-steel rod to which the appropriate scraping parts are fitted. Using a variety of food-safe materials together with Teflon and PEEK (polyether ether ketone), these provide totally different internal geometry setups in accordance with the applying, corresponding to 120-degree scrapers for big particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can also be fully scalable by increasing the shell diameter and adding more interior tubes from a single tube as much as eighty in one shell. A key function is the specifically designed seals which separate the internal tube from the separation chamber, tailored to the product application. These seals prevent leakage of the product and ensure internal and external hygiene. A standard vary of fashions for food processing provide heat transfer areas from 7 to 107 square toes, while larger models as much as practically 1,300 sq. feet could be made for particular makes use of.

One area where the Unicus Series excels is in evaporation purposes, the place the prevention of fouling is particularly important. HRS has a particular version of the Unicus for use in evaporation units the place volume discount of the fabric is essential. The scraping action retains the heat switch surfaces clear in order that Unicus evaporators can concentrate supplies to a degree that is unattainable using conventional technologies. Unicus evaporators can be utilized in multi-effect setups or in combination with mechanical vapor recompression.
Matt Hale is worldwide sales and advertising director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is part of the HRS Group, which operates at the forefront of thermal know-how, providing revolutionary warmth switch options worldwide across a diverse vary of industries. With forty years’ expertise in the meals and beverage sector, specializing within the design and manufacture of an in depth range of turnkey systems and parts, incorporating corrugated tubular, and scraped floor warmth exchanger technology, HRS items are compliant with global design and trade requirements.For extra data, go to

Leave a Comment