Scraped floor heat exchangers have been used for troublesome heat switch applications involving viscous fluids or the place fouling is an issue, such as evaporation processes. The most typical kind of scraped surface warmth exchanger (SSHE) makes use of a rotating shaft with blades or augers which scrape the floor of the tube. The in style HRS R Series is predicated on this approach. However, the design isn’t optimal for every scenario, and so HRS developed the Unicus Series of reciprocating scraped floor heat exchangers.
The Unicus Series of reciprocating scraped floor warmth 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 particularly designed to supply the improved warmth switch of a standard SSHE, however with a delicate action to protect the quality and integrity of delicate food products similar to cheese, yoghurt, ice cream, meat paste, and products containing whole pieces of fruits or greens. Over the years, a number of totally different scraper designs have been developed, which means that every utility, from processing curds to heating sauce or pasteurizing fruit compotes could be dealt with in essentially the most environment friendly but mild way potential. Other functions the place the Unicus Series has been beneficial embrace dealing with meat slurry and mince, and processing yeast-malt extracts.
The hygienic design makes use of a patented stainless-steel scraping mechanism that strikes hydraulically forwards and backwards within every inside tube. The movement performs two key features: it minimizes potential fouling by maintaining the tube wall clean and likewise creates turbulence inside the material. Together, these actions increase the speed of heat transfer in the material, creating a extremely efficient process that’s perfect for viscous and high fouling materials.
Since they’re controlled separately, the pace of the scrapers could be optimized for a selected product being processed, in order that materials that are vulnerable to shear stress or pressure harm (such as lotions and custards) could be dealt with delicately to prevent harm while nonetheless providing excessive levels of heat switch. The Unicus Series has proven notably helpful in handling viscous meals merchandise the place texture and consistency are necessary attributes. For instance, some creams or sauces might shear when subjected to extra pressure, making them unusable. The Unicus means that efficient heat switch can be carried out at low pressures which overcomes these problems.
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 equipped instead), a separation chamber to make sure hygiene and protect product separation from the motor, and the warmth exchanger itself. จำหน่ายเกจวัดแรงดัน consists of a quantity of tubes, each of which contains a stainless-steel rod to which the appropriate scraping elements are fitted. Using a variety of food-safe supplies including Teflon and PEEK (polyether ether ketone), these present different inner geometry setups based on the appliance, similar to 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series can also be fully scalable by increasing the shell diameter and including extra interior tubes from a single tube up to eighty in one shell. A key feature is the specifically designed seals which separate the internal tube from the separation chamber, tailor-made to the product software. These seals prevent leakage of the product and guarantee internal and external hygiene. A standard vary of models for food processing present warmth transfer areas from 7 to 107 square toes, whereas bigger models as much as practically 1,300 sq. ft could be made for particular uses.
EXCELLENCE IN ACTION
One area where the Unicus Series excels is in evaporation purposes, where the prevention of fouling is particularly necessary. HRS has a selected version of the Unicus to be used in evaporation units the place quantity discount of the fabric is crucial. The scraping action retains the heat transfer surfaces clear so that Unicus evaporators can focus supplies to a level that is unattainable using conventional technologies. Unicus evaporators can be used in multi-effect setups or together with mechanical vapor recompression.
Matt Hale is worldwide gross sales and marketing 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 expertise, providing innovative warmth transfer options worldwide across a various vary of industries. With forty years’ experience in the food and beverage sector, specializing in the design and manufacture of an extensive vary of turnkey systems and elements, incorporating corrugated tubular, and scraped surface heat exchanger know-how, HRS models are compliant with world design and business requirements.For extra information, go to www.hrs-heatexchangers.com.
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