Scraped floor heat exchangers have been used for difficult warmth switch functions 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 method. However, the design is not optimum for every situation, and so HRS developed the Unicus Series of reciprocating scraped surface heat exchangers.
pressure gauge ดิจิตอล of reciprocating scraped surface warmth exchangers is right for viscous products corresponding to cream and tomato juice, in addition to merchandise containing fruit items or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is particularly designed to provide the improved heat switch of a conventional SSHE, but with a gentle action to protect the quality and integrity of delicate food products such as cheese, yoghurt, ice cream, meat paste, and products containing entire items of fruits or vegetables. Over the years, a quantity of completely different scraper designs have been developed, meaning that every application, from processing curds to heating sauce or pasteurizing fruit compotes may be dealt with in the most efficient but light way possible. Other functions the place the Unicus Series has been useful embrace handling meat slurry and mince, and processing yeast-malt extracts.
The hygienic design uses a patented stainless-steel scraping mechanism that moves hydraulically forwards and backwards within every inside tube. The movement performs two key features: it minimizes potential fouling by keeping the tube wall clear and also creates turbulence inside the materials. Together, these actions enhance the speed of heat switch within the materials, making a highly environment friendly course of that is perfect for viscous and high fouling materials.
Since they are controlled separately, the speed of the scrapers can be optimized for a specific product being processed, so that materials that are susceptible to shear stress or pressure damage (such as creams and custards) could be handled delicately to prevent injury whereas still providing excessive ranges of warmth switch. The Unicus Series has confirmed significantly helpful in dealing with viscous meals merchandise where texture and consistency are necessary attributes. For example, some creams or sauces may shear when subjected to extra strain, making them unusable. The Unicus means that effective warmth switch could be carried out at low pressures which overcomes these problems.
HRS UNICUS SERIES UP CLOSE
Each Unicus SSHE consists of three parts: a hydraulic cylinder and power pack (although in smaller items 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 warmth exchanger consists of numerous tubes, each of which incorporates a stainless-steel rod to which the appropriate scraping parts are fitted. Using a range of food-safe supplies together with Teflon and PEEK (polyether ether ketone), these provide completely different inner geometry setups according to the applying, corresponding to 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series can additionally be totally scalable by increasing the shell diameter and including extra inside tubes from a single tube up to eighty in one shell. A key feature is the specially designed seals which separate the inside tube from the separation chamber, tailor-made to the product utility. These seals forestall leakage of the product and guarantee internal and exterior hygiene. A standard range of models for meals processing present heat switch areas from 7 to 107 square feet, whereas bigger models up to practically 1,300 square toes could be made for particular uses.
EXCELLENCE IN ACTION
One area the place the Unicus Series excels is in evaporation functions, the place the prevention of fouling is particularly necessary. HRS has a selected model of the Unicus for use in evaporation models where volume discount of the material is essential. The scraping motion retains the warmth switch surfaces clean so that Unicus evaporators can focus materials to a degree that is unattainable utilizing conventional technologies. Unicus evaporators can be utilized 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 part of the HRS Group, which operates on the forefront of thermal expertise, providing progressive warmth switch solutions worldwide throughout a various range of industries. With forty years’ experience in the meals and beverage sector, specializing within the design and manufacture of an extensive vary of turnkey techniques and parts, incorporating corrugated tubular, and scraped surface heat exchanger know-how, HRS units are compliant with international design and trade standards.For more data, go to www.hrs-heatexchangers.com.
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