Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped surface warmth exchangers have been used for troublesome warmth transfer purposes involving viscous fluids or where fouling is a matter, similar to evaporation processes. The most typical type of scraped surface warmth exchanger (SSHE) uses a rotating shaft with blades or augers which scrape the floor of the tube. The well-liked HRS R Series relies on this method. However, the design is not optimum for every scenario, and so HRS developed the Unicus Series of reciprocating scraped surface heat exchangers.
The Unicus Series of reciprocating scraped surface heat exchangers is ideal for viscous products similar to cream and tomato juice, as properly as merchandise containing fruit pieces or particles.
The HRS Unicus Series is particularly designed to offer the improved warmth transfer of a standard SSHE, however with a delicate motion to preserve the standard and integrity of delicate meals products similar to cheese, yoghurt, ice cream, meat paste, and merchandise containing whole items of fruits or vegetables. Over the years, a selection of completely different scraper designs have been developed, which means that each software, from processing curds to heating sauce or pasteurizing fruit compotes may be dealt with in essentially the most efficient yet light means potential. Other functions where the Unicus Series has been beneficial include handling meat slurry and mince, and processing yeast-malt extracts.
The hygienic design uses a patented stainless-steel scraping mechanism that moves hydraulically back and forth inside every interior tube. The movement performs two key capabilities: it minimizes potential fouling by maintaining the tube wall clean and also creates turbulence inside the materials. Together, these actions increase the rate of warmth switch in the materials, creating a extremely environment friendly process that is ideal for viscous and high fouling supplies.
Since they’re managed separately, the pace of the scrapers can be optimized for a specific product being processed, in order that supplies which are vulnerable to shear stress or strain injury (such as creams and custards) may be dealt with delicately to stop harm whereas still providing excessive levels of heat transfer. The Unicus Series has confirmed particularly useful in handling viscous meals products where texture and consistency are essential attributes. For instance, some lotions or sauces might shear when subjected to excess strain, making them unusable. The Unicus means that effective warmth switch can be carried out at low pressures which overcomes these issues.
Each Unicus SSHE consists of three parts: a hydraulic cylinder and energy pack (although in smaller units a pneumatic cylinder may be supplied instead), a separation chamber to ensure hygiene and preserve product separation from the motor, and the heat exchanger itself. The heat exchanger consists of numerous tubes, every of which incorporates a stainless-steel rod to which the suitable scraping parts are fitted. Using a variety of food-safe supplies together with Teflon and PEEK (polyether ether ketone), these present different internal geometry setups based on the applying, corresponding to 120-degree scrapers for big particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series is also totally scalable by increasing the shell diameter and adding more interior tubes from a single tube up to eighty in one shell. เกจ์อาร์กอนsumo is the specifically designed seals which separate the inside tube from the separation chamber, tailor-made to the product software. These seals forestall leakage of the product and guarantee inner and external hygiene. A standard vary of models for food processing provide warmth transfer areas from 7 to 107 square toes, whereas bigger fashions as a lot as nearly 1,300 sq. feet may be made for particular makes use of.
One area the place the Unicus Series excels is in evaporation applications, the place the prevention of fouling is especially essential. HRS has a particular model of the Unicus for use in evaporation items the place quantity reduction of the material is essential. The scraping action retains the heat switch surfaces clear so that Unicus evaporators can focus supplies to a level that’s unattainable using conventional technologies. Unicus evaporators can be utilized in multi-effect setups or together with mechanical vapor recompression.
Matt Hale is worldwide sales and advertising director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is a half of the HRS Group, which operates at the forefront of thermal technology, providing innovative warmth transfer options worldwide across a various range of industries. With forty years’ expertise in the meals and beverage sector, specializing within the design and manufacture of an intensive range of turnkey methods and components, incorporating corrugated tubular, and scraped floor heat exchanger technology, HRS models are compliant with world design and trade standards.For more information, go to

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