Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped floor heat exchangers have been used for troublesome warmth switch applications involving viscous fluids or the place fouling is an issue, similar to evaporation processes. The most typical type 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 strategy. However, the design just isn’t optimal for every scenario, and so HRS developed the Unicus Series of reciprocating scraped surface heat exchangers.
The Unicus Series of reciprocating scraped surface heat exchangers is ideal for viscous merchandise corresponding to cream and tomato juice, in addition to merchandise containing fruit pieces or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is specifically designed to offer the improved warmth switch of a conventional SSHE, however with a mild action to preserve 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 selection of totally different scraper designs have been developed, meaning that every utility, from processing curds to heating sauce or pasteurizing fruit compotes can be dealt with in the most efficient but gentle method possible. Other purposes the place the Unicus Series has been helpful embody dealing with meat slurry and mince, and processing yeast-malt extracts.
The hygienic design makes use of a patented stainless-steel scraping mechanism that moves hydraulically back and forth inside each inside tube. The motion performs two key features: it minimizes potential fouling by preserving the tube wall clean and likewise creates turbulence within the material. Together, these actions improve the rate of heat switch in the materials, making a highly efficient course of that is perfect for viscous and excessive fouling supplies.
Since they’re controlled individually, the speed of the scrapers may be optimized for a selected product being processed, so that supplies which are susceptible to shear stress or strain injury (such as creams and custards) may be dealt with delicately to stop damage while nonetheless providing excessive levels of warmth transfer. The Unicus Series has proven notably helpful in handling viscous meals merchandise where texture and consistency are important attributes. For example, some creams or sauces could shear when subjected to excess strain, making them unusable. The Unicus signifies that effective warmth transfer could be carried out at low pressures which overcomes these issues.
pressure gauge วัด แรง ดัน consists of three elements: a hydraulic cylinder and power pack (although in smaller units a pneumatic cylinder may be provided instead), a separation chamber to make sure hygiene and preserve product separation from the motor, and the warmth exchanger itself. The heat exchanger consists of a variety of tubes, every of which incorporates a stainless-steel rod to which the suitable scraping elements are fitted. Using a range of food-safe supplies together with Teflon and PEEK (polyether ether ketone), these provide completely different inside geometry setups according to the application, such as 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series is also fully scalable by rising the shell diameter and adding more interior tubes from a single tube as much as eighty in one shell. A key characteristic is the specially designed seals which separate the inside tube from the separation chamber, tailored to the product utility. These seals stop leakage of the product and guarantee inner and exterior hygiene. A normal vary of fashions for food processing provide heat transfer areas from 7 to 107 square feet, whereas larger fashions up to practically 1,300 sq. ft may be made for particular uses.
EXCELLENCE IN ACTION
One space where the Unicus Series excels is in evaporation applications, where the prevention of fouling is particularly essential. HRS has a selected version of the Unicus for use in evaporation models where volume discount of the material is crucial. The scraping motion retains the warmth switch surfaces clear in order that Unicus evaporators can concentrate materials to a degree that’s unattainable using conventional technologies. Unicus evaporators can be utilized in multi-effect setups or together with mechanical vapor recompression.
Matt Hale is international sales and marketing director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is a half of the HRS Group, which operates at the forefront of thermal expertise, offering revolutionary warmth switch options worldwide throughout a diverse vary of industries. With forty years’ experience in the meals and beverage sector, specializing within the design and manufacture of an in depth range of turnkey systems and components, incorporating corrugated tubular, and scraped surface heat exchanger expertise, HRS items are compliant with international design and industry standards.For more info, visit www.hrs-heatexchangers.com.
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