Scraped surface warmth exchangers have been used for difficult warmth transfer applications involving viscous fluids or where fouling is a matter, similar to evaporation processes. The most common sort of scraped floor warmth exchanger (SSHE) makes use of a rotating shaft with blades or augers which scrape the floor of the tube. The well-liked HRS R Series relies on this strategy. However, the design just isn’t optimal for each state of affairs, and so HRS developed the Unicus Series of reciprocating scraped surface heat exchangers.
The Unicus Series of reciprocating scraped surface warmth exchangers is ideal for viscous merchandise similar to cream and tomato juice, in addition to merchandise containing fruit pieces or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is particularly designed to supply the improved warmth transfer of a standard SSHE, but with a gentle motion to protect the quality and integrity of delicate meals merchandise similar to cheese, yoghurt, ice cream, meat paste, and products containing complete pieces of fruits or vegetables. Over the years, a number of 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 essentially the most environment friendly yet gentle method possible. Other applications where the Unicus Series has been useful embody dealing with meat slurry and mince, and processing yeast-malt extracts.
The hygienic design uses a patented stainless-steel scraping mechanism that strikes hydraulically backwards and forwards within every interior tube. The motion performs two key features: it minimizes potential fouling by keeping the tube wall clean and likewise creates turbulence within the material. Together, these actions increase the rate of warmth transfer within the materials, making a highly environment friendly course of that’s best for viscous and high fouling materials.
Since they are controlled individually, the pace of the scrapers can be optimized for a particular product being processed, so that supplies that are prone to shear stress or stress harm (such as creams and custards) can be handled delicately to forestall injury while nonetheless providing excessive ranges of warmth transfer. เกจวัดแรงกด has confirmed notably useful in handling viscous food products the place texture and consistency are important attributes. For instance, some lotions or sauces may shear when subjected to excess stress, making them unusable. The Unicus means that effective heat 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 power pack (although in smaller units a pneumatic cylinder can be supplied instead), a separation chamber to make sure hygiene and protect product separation from the motor, and the warmth exchanger itself. The warmth exchanger consists of a quantity of tubes, every of which contains a stainless-steel rod to which the appropriate scraping components are fitted. Using a variety of food-safe supplies including Teflon and PEEK (polyether ether ketone), these provide different inner geometry setups according to the application, such as 120-degree scrapers for big particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series can be absolutely scalable by rising the shell diameter and including extra inside tubes from a single tube as a lot as eighty in one shell. A key feature is the specifically designed seals which separate the inner tube from the separation chamber, tailor-made to the product software. These seals forestall leakage of the product and guarantee internal and external hygiene. A normal vary of models for meals processing provide warmth transfer areas from 7 to 107 sq. toes, while bigger fashions as a lot as practically 1,300 sq. ft may be made for specific makes use of.
EXCELLENCE IN ACTION
pressure gauge trerice ราคา excels is in evaporation purposes, the place the prevention of fouling is especially important. HRS has a particular model of the Unicus for use in evaporation items the place volume discount of the material is important. The scraping action keeps the warmth switch surfaces clean so that Unicus evaporators can focus supplies to a stage that’s unattainable utilizing conventional applied sciences. Unicus evaporators can be utilized in multi-effect setups or in combination 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 at the forefront of thermal know-how, providing progressive warmth transfer solutions worldwide throughout a various vary of industries. With forty years’ experience within the food and beverage sector, specializing in the design and manufacture of an in depth vary of turnkey systems and parts, incorporating corrugated tubular, and scraped surface warmth exchanger expertise, HRS items are compliant with international design and trade requirements.For more data, visit www.hrs-heatexchangers.com.
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