Scraped floor warmth exchangers have been used for tough heat switch functions involving viscous fluids or where fouling is a matter, such as evaporation processes. The commonest kind of scraped surface warmth exchanger (SSHE) makes use of a rotating shaft with blades or augers which scrape the surface of the tube. The in style HRS R Series is based on this approach. However, the design is not optimal for each situation, and so HRS developed the Unicus Series of reciprocating scraped floor heat exchangers.
The Unicus Series of reciprocating scraped surface warmth exchangers is good for viscous products such as cream and tomato juice, as well as products containing fruit pieces or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is particularly designed to offer the improved heat switch of a traditional SSHE, however with a delicate action to protect the standard and integrity of delicate food products such as cheese, yoghurt, ice cream, meat paste, and merchandise containing whole pieces of fruits or greens. Over the years, numerous completely different scraper designs have been developed, that means that each application, from processing curds to heating sauce or pasteurizing fruit compotes could be handled in the most environment friendly but mild means possible. Other applications where the Unicus Series has been helpful include handling 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 inside each inside tube. The motion performs two key functions: it minimizes potential fouling by maintaining the tube wall clean and also creates turbulence inside the materials. Together, these actions enhance the speed of heat switch within the material, making a highly efficient process that is best for viscous and high fouling supplies.
Since they are controlled separately, the velocity of the scrapers could be optimized for a selected product being processed, so that materials that are prone to shear stress or stress harm (such as lotions and custards) could be handled delicately to prevent injury whereas still offering excessive levels of heat switch. The Unicus Series has proven particularly helpful in dealing with viscous food merchandise the place texture and consistency are necessary attributes. For example, some creams or sauces might shear when subjected to excess pressure, making them unusable. The Unicus signifies that effective warmth switch can be carried out at low pressures which overcomes these issues.
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 could be supplied instead), a separation chamber to ensure hygiene and preserve product separation from the motor, and the warmth exchanger itself. The heat exchanger consists of numerous tubes, each of which contains a stainless-steel rod to which the appropriate scraping parts are fitted. Using a spread of food-safe materials including Teflon and PEEK (polyether ether ketone), these provide completely different inside geometry setups in accordance with the application, corresponding to 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids with out particulates.
เกจวัดแรงดันไทวัสดุ can be absolutely scalable by increasing the shell diameter and including more inside tubes from a single tube up to eighty in a single shell. A key function is the specifically designed seals which separate the inner tube from the separation chamber, tailor-made to the product application. These seals prevent leakage of the product and guarantee internal and exterior hygiene. A standard vary of fashions for food processing present heat switch areas from 7 to 107 square feet, whereas larger models up to practically 1,300 square ft may be made for particular uses.
EXCELLENCE IN ACTION
One area the place the Unicus Series excels is in evaporation applications, the place the prevention of fouling is especially necessary. HRS has a specific version of the Unicus for use in evaporation models where quantity discount of the material is important. The scraping motion retains the heat transfer surfaces clear in order that Unicus evaporators can focus supplies to a degree that is unattainable using conventional applied sciences. Unicus evaporators can be utilized in multi-effect setups or together with mechanical vapor recompression.
Matt Hale is international sales and advertising director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is a part of the HRS Group, which operates on the forefront of thermal expertise, providing progressive warmth switch options worldwide throughout a diverse range of industries. With forty years’ expertise within the food and beverage sector, specializing within the design and manufacture of an in depth vary of turnkey methods and parts, incorporating corrugated tubular, and scraped floor heat exchanger expertise, HRS units are compliant with world design and business requirements.For extra information, go to www.hrs-heatexchangers.com.
Share