Scraped floor heat exchangers have been used for troublesome warmth transfer functions involving viscous fluids or where fouling is an issue, similar to evaporation processes. The most common kind of scraped surface heat exchanger (SSHE) uses a rotating shaft with blades or augers which scrape the surface of the tube. The popular HRS R Series is predicated on this method. However, the design just isn’t optimal for each 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 right for viscous products similar to cream and tomato juice, as nicely as merchandise containing fruit items or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is specifically designed to offer the improved warmth transfer of a conventional SSHE, however with a gentle action to protect the standard and integrity of delicate meals merchandise corresponding to cheese, yoghurt, ice cream, meat paste, and products containing entire items of fruits or vegetables. Over the years, a variety of totally different scraper designs have been developed, meaning that each software, from processing curds to heating sauce or pasteurizing fruit compotes can be dealt with in essentially the most environment friendly yet gentle means potential. Other purposes where the Unicus Series has been helpful embrace dealing with meat slurry and mince, and processing yeast-malt extracts.
differential pressure gauge ราคา makes use of a patented stainless-steel scraping mechanism that moves hydraulically forwards and backwards inside every interior tube. The movement performs two key features: it minimizes potential fouling by keeping the tube wall clean and also creates turbulence inside the materials. Together, these actions improve the rate of warmth switch in the material, making a extremely environment friendly course of that’s ideal for viscous and high fouling materials.
Since they are controlled separately, 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 pressure injury (such as lotions and custards) could be handled delicately to prevent damage while still offering high ranges of warmth transfer. The Unicus Series has confirmed notably useful in handling viscous meals merchandise where texture and consistency are necessary attributes. For example, some creams or sauces might shear when subjected to excess pressure, making them unusable. The Unicus means that efficient warmth switch could 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 energy pack (although in smaller models a pneumatic cylinder may be equipped instead), a separation chamber to make sure hygiene and protect product separation from the motor, and the heat exchanger itself. The heat exchanger consists of a variety of tubes, each of which incorporates a stainless-steel rod to which the suitable scraping components are fitted. Using a variety of food-safe supplies together with Teflon and PEEK (polyether ether ketone), these present different internal geometry setups according to the appliance, corresponding to 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can additionally be fully scalable by growing the shell diameter and adding more interior tubes from a single tube up to eighty in a single shell. A key characteristic is the specifically designed seals which separate the internal tube from the separation chamber, tailored to the product software. These seals forestall leakage of the product and guarantee internal and exterior hygiene. A commonplace range of fashions for food processing present warmth transfer areas from 7 to 107 square ft, while bigger models as a lot as practically 1,300 sq. ft can be made for particular makes use of.
EXCELLENCE IN ACTION
One area where the Unicus Series excels is in evaporation functions, the place the prevention of fouling is particularly important. HRS has a particular version of the Unicus to be used in evaporation items where quantity discount of the material is important. The scraping motion keeps the warmth transfer surfaces clean so that Unicus evaporators can concentrate supplies 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 worldwide sales and advertising director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is a part of the HRS Group, which operates at the forefront of thermal know-how, providing progressive heat switch solutions worldwide across a diverse range of industries. With forty years’ expertise within the meals and beverage sector, specializing in the design and manufacture of an extensive vary of turnkey systems and parts, incorporating corrugated tubular, and scraped floor heat exchanger know-how, HRS units are compliant with global design and business standards.For extra data, go to www.hrs-heatexchangers.com.
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