Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped floor warmth exchangers have been used for difficult heat switch functions involving viscous fluids or where fouling is an issue, such as evaporation processes. The most typical kind 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 relies on this method. However, the design is not optimum for each state of affairs, and so HRS developed the Unicus Series of reciprocating scraped floor heat exchangers.
The Unicus Series of reciprocating scraped surface heat exchangers is ideal for viscous products corresponding to cream and tomato juice, as nicely as products containing fruit items or particles.
The HRS Unicus Series is particularly designed to provide the improved heat transfer of a conventional SSHE, however with a delicate action to protect the quality and integrity of delicate meals merchandise such as cheese, yoghurt, ice cream, meat paste, and products containing complete pieces of fruits or greens. Over the years, numerous different scraper designs have been developed, that means that each utility, from processing curds to heating sauce or pasteurizing fruit compotes may be handled in the most efficient but gentle way attainable. Other functions the place the Unicus Series has been useful embrace dealing with meat slurry and mince, and processing yeast-malt extracts.
The hygienic design uses a patented stainless-steel scraping mechanism that moves hydraulically backwards and forwards inside each interior tube. The motion performs two key capabilities: it minimizes potential fouling by preserving the tube wall clear and in addition creates turbulence within the materials. Together, these actions increase the speed of warmth switch within the materials, making a extremely efficient process that’s perfect for viscous and high fouling materials.
Since they’re managed individually, the velocity of the scrapers can be optimized for a specific product being processed, in order that materials which are susceptible to shear stress or stress injury (such as creams and custards) can be dealt with delicately to forestall injury while still offering excessive ranges of heat switch. เกจวัดแรง has proven notably helpful in dealing with viscous meals merchandise where texture and consistency are necessary attributes. For example, some lotions or sauces might shear when subjected to excess stress, 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 items a pneumatic cylinder may be supplied instead), a separation chamber to ensure hygiene and protect product separation from the motor, and the warmth exchanger itself. The heat exchanger consists of a number of tubes, every of which accommodates a stainless-steel rod to which the appropriate scraping parts are fitted. Using a variety of food-safe supplies together with Teflon and PEEK (polyether ether ketone), these present totally different internal geometry setups according to the applying, corresponding to 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can be absolutely scalable by growing the shell diameter and adding more inside tubes from a single tube up to eighty in a single shell. A key feature is the specially designed seals which separate the inner tube from the separation chamber, tailored to the product application. These seals prevent leakage of the product and guarantee inside and external hygiene. A commonplace range of models for food processing provide heat transfer areas from 7 to 107 square toes, while larger models up to practically 1,300 square ft can be made for specific uses.
One space where the Unicus Series excels is in evaporation functions, the place the prevention of fouling is especially necessary. HRS has a particular model of the Unicus to be used in evaporation models the place quantity discount of the fabric is essential. The scraping motion keeps the heat switch surfaces clear so that Unicus evaporators can concentrate supplies to a level that is unattainable utilizing conventional applied sciences. Unicus evaporators can be utilized in multi-effect setups or in combination with mechanical vapor recompression.
Matt Hale is international gross 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 know-how, providing progressive heat switch solutions worldwide throughout a various range of industries. With forty years’ expertise in the meals and beverage sector, specializing within the design and manufacture of an extensive range of turnkey systems and elements, incorporating corrugated tubular, and scraped surface warmth exchanger expertise, HRS models are compliant with international design and business requirements.For more data, go to

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