Reciprocating Action Solves Tough Heat Exchange Challenges

Scraped floor warmth exchangers have been used for troublesome warmth transfer functions involving viscous fluids or the place fouling is an issue, such as evaporation processes. The most typical type 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 is based on this method. However, the design is not optimum for every scenario, 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 merchandise such as cream and tomato juice, as nicely as products containing fruit items or particles.
The HRS Unicus Series is particularly designed to supply the improved warmth switch of a standard SSHE, however with a mild motion to preserve the quality and integrity of delicate food merchandise corresponding to cheese, yoghurt, ice cream, meat paste, and products containing whole pieces of fruits or greens. Over the years, numerous different scraper designs have been developed, which means that every software, from processing curds to heating sauce or pasteurizing fruit compotes may be dealt with in probably the most efficient yet gentle method attainable. ราคาเกจวัดแรงดันลม 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 moves hydraulically forwards and backwards inside every interior tube. The motion performs two key features: it minimizes potential fouling by keeping the tube wall clear and likewise creates turbulence inside the materials. Together, these actions improve the speed of heat transfer within the material, making a extremely efficient course of that is ideal for viscous and high fouling supplies.
Since they’re controlled individually, the pace of the scrapers can be optimized for a particular product being processed, in order that materials which are susceptible to shear stress or stress harm (such as lotions and custards) may be dealt with delicately to forestall damage while nonetheless offering excessive levels of heat switch. The Unicus Series has proven notably helpful in dealing with viscous food merchandise the place texture and consistency are necessary attributes. For example, some creams or sauces may shear when subjected to extra pressure, making them unusable. The Unicus means that effective heat switch could 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 models a pneumatic cylinder may be supplied instead), a separation chamber to ensure hygiene and protect product separation from the motor, and the warmth exchanger itself. The heat exchanger consists of a selection of tubes, each of which contains a stainless-steel rod to which the appropriate scraping elements are fitted. Using a range of food-safe materials together with Teflon and PEEK (polyether ether ketone), these present completely different inner geometry setups in accordance with the application, corresponding to 120-degree scrapers for giant particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can be fully scalable by increasing the shell diameter and adding extra inside tubes from a single tube up to eighty in one shell. A key feature is the specially designed seals which separate the internal tube from the separation chamber, tailored to the product application. These seals forestall leakage of the product and guarantee internal and external hygiene. A standard range of models for meals processing present warmth switch areas from 7 to 107 sq. toes, whereas bigger models as much as practically 1,300 sq. toes could be made for particular makes use of.
One area the place the Unicus Series excels is in evaporation purposes, the place the prevention of fouling is especially essential. HRS has a particular version of the Unicus to be used in evaporation units where quantity reduction of the fabric is essential. The scraping motion retains the warmth transfer surfaces clean so that Unicus evaporators can concentrate supplies to a stage that is unattainable utilizing traditional technologies. Unicus evaporators can be used in multi-effect setups or together with mechanical vapor recompression.
Matt Hale is worldwide sales and advertising director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is a half of the HRS Group, which operates at the forefront of thermal technology, providing progressive warmth switch options worldwide throughout a various vary of industries. With forty years’ expertise in the food and beverage sector, specializing in the design and manufacture of an in depth range of turnkey methods and elements, incorporating corrugated tubular, and scraped surface heat exchanger know-how, HRS models are compliant with international design and trade standards.For more information, visit