Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped surface warmth exchangers have been used for difficult warmth switch applications involving viscous fluids or where fouling is a matter, corresponding to evaporation processes. The most common kind 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 predicated on this method. However, the design is not optimal for each situation, and so HRS developed the Unicus Series of reciprocating scraped floor warmth exchangers.
The Unicus Series of reciprocating scraped floor heat exchangers is good for viscous merchandise corresponding to cream and tomato juice, in addition to merchandise containing fruit pieces or particles.
The HRS Unicus Series is specifically designed to supply the improved heat transfer of a conventional SSHE, however with a gentle motion to preserve the standard and integrity of delicate meals products corresponding to cheese, yoghurt, ice cream, meat paste, and merchandise containing whole pieces of fruits or vegetables. Over the years, a quantity of different scraper designs have been developed, that means that every software, from processing curds to heating sauce or pasteurizing fruit compotes can be dealt with in essentially the most efficient but mild means possible. Other applications the place the Unicus Series has been useful 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 strikes hydraulically backwards and forwards within each inside tube. The motion performs two key capabilities: it minimizes potential fouling by maintaining the tube wall clear and likewise creates turbulence inside the material. Together, these actions increase the speed of warmth switch in the materials, creating a highly efficient course of that’s best for viscous and high fouling supplies.
Since เกจวัดแรงดันน้ำประปาราคา managed individually, the velocity of the scrapers can be optimized for a specific product being processed, in order that materials that are vulnerable to shear stress or strain damage (such as creams and custards) can be handled delicately to forestall harm whereas still providing excessive levels of heat transfer. The Unicus Series has proven notably helpful in dealing with viscous meals products the place texture and consistency are necessary attributes. For instance, some creams or sauces may shear when subjected to excess strain, making them unusable. The Unicus signifies that efficient heat transfer can be carried out at low pressures which overcomes these problems.
Each Unicus SSHE consists of three elements: a hydraulic cylinder and power pack (although in smaller models a pneumatic cylinder may be provided 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 numerous tubes, every of which incorporates a stainless-steel rod to which the appropriate scraping elements are fitted. Using a variety of food-safe materials including Teflon and PEEK (polyether ether ketone), these present completely different inside geometry setups according to the applying, corresponding to 120-degree scrapers for big particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series is also totally scalable by growing the shell diameter and including more interior tubes from a single tube up to eighty in one shell. A key characteristic is the specially designed seals which separate the inside tube from the separation chamber, tailor-made to the product application. These seals prevent leakage of the product and ensure internal and external hygiene. A commonplace vary of fashions for meals processing provide warmth transfer areas from 7 to 107 sq. ft, while larger fashions up to practically 1,300 square ft could be made for specific uses.
One space where the Unicus Series excels is in evaporation applications, where the prevention of fouling is especially important. HRS has a specific model of the Unicus for use in evaporation models where volume discount of the fabric is crucial. The scraping motion keeps the warmth transfer surfaces clear in order that Unicus evaporators can concentrate materials to a stage that’s unattainable using traditional applied sciences. Unicus evaporators can be utilized in multi-effect setups or together with mechanical vapor recompression.
Matt Hale is worldwide sales and marketing director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is a half of the HRS Group, which operates on the forefront of thermal technology, providing revolutionary warmth switch solutions worldwide across a various range of industries. With forty years’ expertise in the food and beverage sector, specializing within the design and manufacture of an intensive range of turnkey methods and parts, incorporating corrugated tubular, and scraped surface warmth exchanger know-how, HRS items are compliant with international design and industry standards.For more data, visit

Leave a Comment