Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped floor warmth exchangers have been used for troublesome warmth transfer purposes involving viscous fluids or where fouling is a matter, similar to 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 approach. However, the design isn’t optimal for each scenario, and so HRS developed the Unicus Series of reciprocating scraped floor heat exchangers.
The Unicus Series of reciprocating scraped surface warmth 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 particularly designed to provide the improved heat switch of a traditional SSHE, however with a mild motion to protect the standard and integrity of delicate meals merchandise such as cheese, yoghurt, ice cream, meat paste, and merchandise containing complete pieces of fruits or vegetables. Over the years, a variety of completely different scraper designs have been developed, that means that every software, from processing curds to heating sauce or pasteurizing fruit compotes may be dealt with in probably the most efficient but mild method possible. diaphragm seal where the Unicus Series has been beneficial 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 each inside tube. The motion performs two key capabilities: it minimizes potential fouling by preserving the tube wall clear and also creates turbulence throughout the materials. Together, these actions increase the speed of heat transfer in the material, making a highly efficient process that is perfect for viscous and high fouling materials.
Since they’re controlled separately, the speed of the scrapers could be optimized for a selected product being processed, so that materials which are susceptible to shear stress or pressure harm (such as lotions and custards) may be handled delicately to prevent damage whereas still offering excessive levels of heat switch. The Unicus Series has confirmed significantly useful in handling viscous meals merchandise the place texture and consistency are important attributes. For instance, some creams or sauces might shear when subjected to extra stress, making them unusable. The Unicus means that effective heat transfer may be carried out at low pressures which overcomes these problems.
pressure gauge 10 bar consists of three components: a hydraulic cylinder and power pack (although in smaller units a pneumatic cylinder could be equipped instead), a separation chamber to make sure hygiene and preserve product separation from the motor, and the heat exchanger itself. The heat exchanger consists of numerous tubes, each of which contains a stainless-steel rod to which the suitable scraping elements are fitted. Using a range of food-safe supplies including Teflon and PEEK (polyether ether ketone), these present completely different internal geometry setups in accordance with the appliance, similar to 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can also 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 function is the specially designed seals which separate the inner tube from the separation chamber, tailor-made to the product utility. These seals forestall leakage of the product and ensure inside and exterior hygiene. A normal range of fashions for food processing present warmth switch areas from 7 to 107 square feet, while bigger fashions up to almost 1,300 square feet can be made for particular uses.

One space the place the Unicus Series excels is in evaporation purposes, the place the prevention of fouling is especially necessary. HRS has a particular version of the Unicus to be used in evaporation items the place volume discount of the fabric is essential. The scraping action keeps the heat transfer surfaces clear in order that Unicus evaporators can concentrate materials to a stage that is unattainable using traditional applied sciences. Unicus evaporators can be used 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 part of the HRS Group, which operates on the forefront of thermal know-how, providing revolutionary warmth transfer solutions worldwide throughout a diverse range of industries. With forty years’ experience within the meals and beverage sector, specializing within the design and manufacture of an intensive range of turnkey systems and components, incorporating corrugated tubular, and scraped floor warmth exchanger technology, HRS items are compliant with global design and business standards.For extra info, visit

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