Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped surface heat exchangers have been used for troublesome heat switch functions involving viscous fluids or the place fouling is a matter, corresponding to evaporation processes. The most common sort of scraped surface warmth exchanger (SSHE) uses a rotating shaft with blades or augers which scrape the floor of the tube. The popular HRS R Series relies on this strategy. However, the design is not optimum for every scenario, and so HRS developed the Unicus Series of reciprocating scraped surface warmth exchangers.
The Unicus Series of reciprocating scraped surface heat exchangers is right for viscous products similar to cream and tomato juice, as well as merchandise containing fruit pieces or particles.
The HRS Unicus Series is specifically designed to offer the improved heat transfer of a conventional SSHE, but with a delicate motion to protect the standard and integrity of delicate meals products similar to cheese, yoghurt, ice cream, meat paste, and products containing whole pieces of fruits or vegetables. Over the years, a selection of completely different scraper designs have been developed, which means that each application, from processing curds to heating sauce or pasteurizing fruit compotes can be dealt with in the most environment friendly but light way possible. Other applications where the Unicus Series has been helpful include handling meat slurry and mince, and processing yeast-malt extracts.
The hygienic design uses a patented stainless-steel scraping mechanism that moves hydraulically back and forth within every interior tube. The motion performs two key features: it minimizes potential fouling by preserving the tube wall clean and in addition creates turbulence inside the material. Together, these actions improve the speed of heat switch within the material, creating a highly environment friendly course of that’s ideal for viscous and high fouling supplies.
Since they are managed individually, the velocity of the scrapers could be optimized for a specific product being processed, in order that materials that are prone to shear stress or stress injury (such as creams and custards) may be handled delicately to prevent damage while still providing excessive levels of heat transfer. The Unicus Series has confirmed particularly helpful in handling viscous meals products the place texture and consistency are important attributes. For example, some creams or sauces may shear when subjected to excess pressure, making them unusable. The Unicus signifies that efficient heat switch can be carried out at low pressures which overcomes these problems.
Each Unicus SSHE consists of three parts: a hydraulic cylinder and energy pack (although in smaller units a pneumatic cylinder could be provided instead), a separation chamber to ensure hygiene and preserve product separation from the motor, and the warmth exchanger itself. The warmth exchanger consists of numerous tubes, each of which incorporates a stainless-steel rod to which the suitable scraping parts are fitted. Using a range of food-safe supplies including Teflon and PEEK (polyether ether ketone), these provide different inner geometry setups based on the application, such as 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series is also fully scalable by increasing the shell diameter and including more inside tubes from a single tube as a lot as eighty in a single shell. A key characteristic is the specially designed seals which separate the internal tube from the separation chamber, tailored to the product application. These seals stop leakage of the product and guarantee internal and exterior hygiene. A standard vary of fashions for food processing present heat switch areas from 7 to 107 sq. toes, while bigger fashions up to nearly 1,300 sq. feet may be made for specific makes use of.
One space the place the Unicus Series excels is in evaporation purposes, the place the prevention of fouling is especially important. HRS has a selected version of the Unicus to be used in evaporation items the place volume reduction of the fabric is crucial. The scraping motion keeps the heat transfer surfaces clear in order that Unicus evaporators can focus supplies to a stage that’s unattainable utilizing conventional technologies. Unicus evaporators can be utilized in multi-effect setups or together with mechanical vapor recompression.
ตัววัดแรงดัน is international sales and marketing director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is part of the HRS Group, which operates at the forefront of thermal expertise, providing progressive warmth transfer solutions worldwide throughout a various vary of industries. With forty years’ expertise within the meals and beverage sector, specializing in the design and manufacture of an extensive vary of turnkey systems and parts, incorporating corrugated tubular, and scraped floor heat exchanger know-how, HRS items are compliant with global design and business requirements.For extra info, visit

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