Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped surface heat exchangers have been used for tough heat switch purposes involving viscous fluids or where fouling is a matter, similar to evaporation processes. เพรสเชอร์เกจ of scraped surface warmth exchanger (SSHE) uses a rotating shaft with blades or augers which scrape the floor of the tube. pressure gauge relies on this strategy. However, the design is not optimum for each situation, and so HRS developed the Unicus Series of reciprocating scraped floor warmth exchangers.
The Unicus Series of reciprocating scraped surface heat exchangers is good for viscous merchandise similar to cream and tomato juice, in addition to merchandise containing fruit pieces or particles.

The HRS Unicus Series is specifically designed to supply the improved warmth transfer of a conventional SSHE, however with a delicate action to protect the quality and integrity of delicate meals products such as cheese, yoghurt, ice cream, meat paste, and merchandise containing whole items of fruits or greens. Over the years, numerous different scraper designs have been developed, which means that each utility, from processing curds to heating sauce or pasteurizing fruit compotes can be dealt with in the most environment friendly but light method potential. Other purposes where the Unicus Series has been helpful embrace dealing with meat slurry and mince, and processing yeast-malt extracts.
The hygienic design uses a patented stainless-steel scraping mechanism that strikes hydraulically forwards and backwards within each inside tube. The movement performs two key features: it minimizes potential fouling by keeping the tube wall clean and in addition creates turbulence within the material. Together, these actions enhance the rate of warmth transfer within the material, making a highly environment friendly course of that’s ideal for viscous and excessive fouling supplies.
Since they are controlled individually, the pace of the scrapers may be optimized for a particular product being processed, in order that supplies which are susceptible to shear stress or strain harm (such as lotions and custards) may be handled delicately to forestall damage whereas still providing excessive levels of warmth switch. The Unicus Series has confirmed significantly helpful in handling viscous meals products where texture and consistency are necessary attributes. For instance, some lotions or sauces may shear when subjected to excess pressure, making them unusable. The Unicus means that efficient warmth switch may be carried out at low pressures which overcomes these problems.

Each Unicus SSHE consists of three parts: a hydraulic cylinder and power pack (although in smaller items a pneumatic cylinder may be provided instead), a separation chamber to ensure hygiene and preserve product separation from the motor, and the heat exchanger itself. The heat exchanger consists of a variety of tubes, every of which incorporates a stainless-steel rod to which the suitable scraping parts are fitted. Using a spread of food-safe materials including Teflon and PEEK (polyether ether ketone), these provide different inner geometry setups in accordance with the application, corresponding to 120-degree scrapers for big particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series is also absolutely scalable by growing the shell diameter and adding more interior tubes from a single tube as a lot as eighty in a single shell. A key function is the specially designed seals which separate the inside tube from the separation chamber, tailored to the product software. These seals prevent leakage of the product and ensure inner and external hygiene. A commonplace range of models for food processing provide heat switch areas from 7 to 107 square toes, while bigger fashions as a lot as nearly 1,300 square toes can be made for specific uses.

One space the place the Unicus Series excels is in evaporation applications, the place the prevention of fouling is particularly necessary. HRS has a specific version of the Unicus for use in evaporation models where volume discount of the fabric is crucial. The scraping action retains the heat transfer surfaces clear in order that Unicus evaporators can concentrate materials to a stage that’s unattainable using traditional technologies. Unicus evaporators can be used 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 part of the HRS Group, which operates on the forefront of thermal expertise, providing revolutionary heat switch solutions worldwide across a diverse range of industries. With forty years’ expertise in the food and beverage sector, specializing within the design and manufacture of an intensive vary of turnkey techniques and elements, incorporating corrugated tubular, and scraped floor warmth exchanger know-how, HRS items are compliant with world design and trade standards.For extra info, visit

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