Scraped surface heat exchangers have been used for tough heat transfer functions involving viscous fluids or the place fouling is an issue, corresponding to evaporation processes. The most typical kind 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 method. However, the design isn’t optimal for every state of affairs, and so HRS developed the Unicus Series of reciprocating scraped floor warmth exchangers.
The Unicus Series of reciprocating scraped floor heat exchangers is good for viscous products such as cream and tomato juice, as properly as products containing fruit pieces or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is specifically designed to provide the improved heat switch of a standard SSHE, but with a mild motion to preserve the quality and integrity of delicate meals merchandise similar to cheese, yoghurt, ice cream, meat paste, and merchandise containing complete pieces of fruits or vegetables. Over the years, numerous different scraper designs have been developed, which means that every utility, from processing curds to heating sauce or pasteurizing fruit compotes can be handled in the most efficient yet gentle 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 material. Together, these actions improve the speed of warmth switch in the material, creating a extremely efficient course of that’s best for viscous and excessive fouling materials.
Since they are managed separately, the velocity of the scrapers can be optimized for a particular product being processed, so that materials that are vulnerable to shear stress or strain damage (such as lotions and custards) could be dealt with delicately to forestall harm whereas nonetheless providing excessive levels of warmth switch. The Unicus Series has confirmed particularly useful in handling viscous food products the place texture and consistency are important attributes. For เกจอาร์กอน , some creams or sauces might shear when subjected to excess strain, making them unusable. The Unicus signifies that efficient warmth transfer could be carried out at low pressures which overcomes these problems.
HRS UNICUS SERIES UP CLOSE
Each Unicus SSHE consists of three components: a hydraulic cylinder and energy pack (although in smaller units a pneumatic cylinder may be supplied instead), a separation chamber to make sure hygiene and preserve product separation from the motor, and the heat exchanger itself. The warmth exchanger consists of a number of tubes, each of which contains a stainless-steel rod to which the appropriate scraping components are fitted. Using a variety of food-safe materials including Teflon and PEEK (polyether ether ketone), these present completely different internal geometry setups based on the applying, similar to 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can be fully scalable by rising the shell diameter and adding extra inside tubes from a single tube as much as 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 stop leakage of the product and guarantee inside and exterior hygiene. A normal range of models for meals processing provide warmth switch areas from 7 to 107 square ft, while larger models as a lot as almost 1,300 sq. toes may be made for specific makes use of.
EXCELLENCE IN ACTION
One space the place the Unicus Series excels is in evaporation purposes, where the prevention of fouling is especially 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 keeps the warmth switch surfaces clean so that Unicus evaporators can focus supplies to a degree that is unattainable using conventional applied sciences. Unicus evaporators can be used in multi-effect setups or in combination with mechanical vapor recompression.
Matt Hale is worldwide 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 on the forefront of thermal technology, offering revolutionary heat switch solutions worldwide throughout a various range of industries. With forty years’ expertise in the food and beverage sector, specializing in the design and manufacture of an extensive vary of turnkey methods and elements, incorporating corrugated tubular, and scraped surface heat exchanger technology, HRS items are compliant with world design and industry standards.For extra information, visit www.hrs-heatexchangers.com.
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