Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped floor heat exchangers have been used for difficult warmth switch applications involving viscous fluids or the place fouling is an issue, corresponding to evaporation processes. The most typical sort of scraped surface heat exchanger (SSHE) makes use of a rotating shaft with blades or augers which scrape the surface of the tube. The popular HRS R Series relies on this strategy. However, the design isn’t optimum for each state of affairs, and so HRS developed the Unicus Series of reciprocating scraped surface warmth exchangers.
เกจวัดแรงดันไทวัสดุ of reciprocating scraped floor heat exchangers is right for viscous products corresponding to cream and tomato juice, in addition to products containing fruit pieces or particles.
The HRS Unicus Series is specifically designed to supply the improved warmth transfer of a conventional SSHE, however with a gentle action to preserve the quality and integrity of delicate food merchandise similar to cheese, yoghurt, ice cream, meat paste, and products containing complete items of fruits or vegetables. Over the years, numerous totally different scraper designs have been developed, which means that every application, from processing curds to heating sauce or pasteurizing fruit compotes can be dealt with in probably the most efficient but gentle means potential. Other purposes the place the Unicus Series has been beneficial embody handling 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 inside every interior tube. The motion performs two key functions: it minimizes potential fouling by keeping the tube wall clean and likewise creates turbulence within the materials. Together, these actions improve the rate of heat switch in the material, making a highly environment friendly course of that’s best for viscous and high fouling supplies.
Since they’re managed separately, the velocity of the scrapers could be optimized for a particular product being processed, in order that materials which are prone to shear stress or stress damage (such as lotions and custards) may be dealt with delicately to prevent harm whereas nonetheless providing high ranges of heat transfer. The Unicus Series has proven notably helpful in dealing with viscous food merchandise the place texture and consistency are necessary attributes. For instance, some creams or sauces may shear when subjected to extra stress, making them unusable. The Unicus implies that efficient warmth switch can be carried out at low pressures which overcomes these problems.
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 ensure hygiene and preserve product separation from the motor, and the warmth exchanger itself. The heat exchanger consists of a variety of tubes, each of which accommodates a stainless-steel rod to which the appropriate scraping components are fitted. Using a variety of food-safe materials including Teflon and PEEK (polyether ether ketone), these provide totally different inside geometry setups according to the appliance, corresponding to 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series can be absolutely scalable by rising the shell diameter and adding more inside tubes from a single tube up to eighty in one shell. A key characteristic 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 inside and exterior hygiene. เกจวัดแรงดันน้ำประปาราคา of fashions for meals processing present warmth transfer areas from 7 to 107 sq. feet, whereas larger models up to nearly 1,300 square ft may be made for specific uses.
One area where the Unicus Series excels is in evaporation functions, the place the prevention of fouling is especially essential. HRS has a particular version of the Unicus for use in evaporation models the place quantity reduction of the fabric is crucial. The scraping action retains the warmth switch surfaces clear in order that Unicus evaporators can focus supplies to a stage that is unattainable using traditional technologies. Unicus evaporators can be utilized in multi-effect setups or in combination with mechanical vapor recompression.
Matt Hale is international gross sales and advertising 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 innovative heat transfer 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 in depth range of turnkey techniques and parts, incorporating corrugated tubular, and scraped surface warmth exchanger expertise, HRS items are compliant with world design and business standards.For extra information, visit

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