Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped surface heat exchangers have been used for troublesome warmth transfer purposes involving viscous fluids or where fouling is an issue, similar to evaporation processes. The commonest type of scraped floor heat 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 method. However, the design isn’t optimum for each situation, and so HRS developed the Unicus Series of reciprocating scraped floor warmth exchangers.
The Unicus Series of reciprocating scraped floor warmth exchangers is right for viscous products such as cream and tomato juice, in addition to merchandise containing fruit items or particles.
The HRS Unicus Series is specifically designed to supply the improved warmth transfer of a traditional SSHE, but with a mild motion to protect the quality and integrity of delicate food merchandise such as cheese, yoghurt, ice cream, meat paste, and merchandise containing whole items of fruits or vegetables. Over the years, a variety of completely different scraper designs have been developed, that means that each utility, from processing curds to heating sauce or pasteurizing fruit compotes can be handled in probably the most efficient but mild method potential. Other functions the place the Unicus Series has been beneficial include 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 backwards and forwards within every inside tube. The motion performs two key features: it minimizes potential fouling by preserving the tube wall clean and likewise creates turbulence throughout the materials. Together, these actions enhance the rate of heat switch in the material, creating a highly efficient process that is ideal for viscous and high fouling supplies.
Since they are controlled separately, the velocity of the scrapers could be optimized for a particular product being processed, so that supplies that are prone to shear stress or stress damage (such as lotions and custards) may be dealt with delicately to stop harm whereas nonetheless offering high levels of warmth transfer. The Unicus Series has proven particularly helpful in handling viscous food products where texture and consistency are essential attributes. For example, some creams or sauces might shear when subjected to extra stress, making them unusable. The Unicus signifies that effective heat switch may be carried out at low pressures which overcomes these issues.
Each Unicus SSHE consists of three components: a hydraulic cylinder and power pack (although in smaller models a pneumatic cylinder may be equipped instead), a separation chamber to ensure hygiene and protect product separation from the motor, and the warmth exchanger itself. The warmth exchanger consists of a quantity of tubes, each of which accommodates a stainless-steel rod to which the suitable scraping parts are fitted. Using จำหน่ายเกจวัดแรงดัน of food-safe materials including Teflon and PEEK (polyether ether ketone), these present completely different inside geometry setups in accordance with the application, such as 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series is also absolutely scalable by increasing the shell diameter and including extra inside tubes from a single tube as a lot as eighty in one shell. A key characteristic is the specially designed seals which separate the internal tube from the separation chamber, tailor-made to the product software. These seals prevent leakage of the product and guarantee internal and exterior hygiene. A normal range of models for food processing present warmth switch areas from 7 to 107 square toes, while larger fashions up to nearly 1,300 sq. ft could be made for particular uses.
One space where the Unicus Series excels is in evaporation functions, the place the prevention of fouling is particularly necessary. HRS has a selected version of the Unicus for use in evaporation units the place volume discount of the fabric is crucial. The scraping motion keeps the heat transfer surfaces clean in order that Unicus evaporators can concentrate materials to a level that is 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 advertising 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 expertise, providing progressive heat switch options worldwide across a various range of industries. With forty years’ experience within the food and beverage sector, specializing within the design and manufacture of an extensive range of turnkey techniques and parts, incorporating corrugated tubular, and scraped surface warmth exchanger expertise, HRS models are compliant with global design and industry standards.For extra data, go to

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