Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped surface warmth exchangers have been used for difficult warmth transfer purposes involving viscous fluids or where fouling is an issue, such as evaporation processes. The most common type of scraped surface 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 based on this approach. However, the design just isn’t optimum for each situation, and so HRS developed the Unicus Series of reciprocating scraped surface warmth exchangers.
The Unicus Series of reciprocating scraped floor heat exchangers is ideal for viscous products such as cream and tomato juice, in addition to products containing fruit items or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is specifically designed to supply the improved warmth transfer of a conventional SSHE, but with a mild motion to preserve the standard and integrity of delicate food merchandise corresponding to cheese, yoghurt, ice cream, meat paste, and merchandise containing complete pieces of fruits or greens. Over the years, numerous completely different scraper designs have been developed, that means that every utility, from processing curds to heating sauce or pasteurizing fruit compotes may be dealt with in essentially the most environment friendly but light way attainable. Other applications 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 back and forth inside every interior tube. The movement performs two key features: it minimizes potential fouling by preserving the tube wall clear and also creates turbulence inside the materials. Together, these actions increase the speed of heat transfer in the materials, creating a extremely environment friendly process that’s best for viscous and high fouling materials.
Since they are controlled individually, the velocity of the scrapers could be optimized for a specific product being processed, in order that materials which are prone to shear stress or stress injury (such as creams and custards) can be dealt with delicately to stop injury whereas nonetheless offering high ranges of heat switch. The Unicus Series has confirmed significantly helpful in handling viscous meals products where texture and consistency are essential attributes. For example, some creams or sauces might shear when subjected to extra stress, making them unusable. The Unicus signifies that effective warmth switch may be carried out at low pressures which overcomes these issues.
HRS UNICUS SERIES UP CLOSE
Each Unicus SSHE consists of three elements: a hydraulic cylinder and power pack (although in smaller units a pneumatic cylinder could be supplied 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 incorporates a stainless-steel rod to which the suitable scraping parts are fitted. Using a variety of food-safe materials including Teflon and PEEK (polyether ether ketone), these provide completely different internal geometry setups in accordance with the application, corresponding to 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can also be fully scalable by rising the shell diameter and including extra inside tubes from a single tube as much as eighty in a single shell. A key function is the specially designed seals which separate the internal tube from the separation chamber, tailored to the product utility. These seals prevent leakage of the product and guarantee inside and exterior hygiene. A normal range of fashions for meals processing provide heat switch areas from 7 to 107 sq. ft, whereas larger models up to practically 1,300 square toes could be made for specific makes use of.
EXCELLENCE IN ACTION
One area where the Unicus Series excels is in evaporation purposes, the place the prevention of fouling is particularly necessary. HRS has a particular version of the Unicus for use in evaporation models the place quantity reduction of the fabric is important. The scraping action retains the heat switch surfaces clear so that Unicus evaporators can concentrate supplies to a level 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 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, offering revolutionary warmth switch solutions worldwide across a various vary of industries. With เกจวัดแรง ’ expertise within the food and beverage sector, specializing in the design and manufacture of an in depth range of turnkey techniques and components, incorporating corrugated tubular, and scraped floor warmth exchanger expertise, HRS items are compliant with global design and trade requirements.For more information, go to www.hrs-heatexchangers.com.
Share