Heat Exchangers and Homogenizers
Equipment manufacturers offer three basic types of heat exchangers each of which has some application in dairy processing-plate, tube, and scraped surface heat exchangers. Homogenizers use pressure to distribute fat molecules evenly throughout the milk. They have become more precise and are manufactured for higher speeds and capacities.
APV/InvensysAPV's new R5 Quad-Drive plate heat exchanger, accepting over 1000 plates, includes many unique features that save the customer time and effort while extending the plate's life. The Quad-Drive is the only PHE to incorporate a PLC, which automatically controls closing and opening. Press 'close' on the display and the machine evenly compresses the plate pack to pitch. Traditionally, two or three people and a tape measure were required for this task, which could result in plate damage or leakage. Tie bar placement allows unimpeded access to every plate and with simultaneous rotation the follower remains parallel to the head.
Tetra PakThe Tetra Plex line from TetraPak gives processors access to a wide range of compact plate heat exchangers that are especially designed for pasteurizing and other kinds of heating and cooling of liquid foods. The units offer a proven, reliable, hygienic and compact design, and durable construction.
All Tetra Plex models have very high heat transfer abilities. This means that you can minimize temperature differences between product and service medium. You get gentle treatment of your product while simultaneously minimizing the risk of fouling. The excellent press depth with relatively few contact points yields longer running times and the possibility to use thicker long life gaskets. The plates' patented distribution pattern assures a smooth flow, which also makes CIP easier. The Tetra Plex range includes a wide selection of plates with different geometries and patterns for different applications. Many plates can be supplied in a choice of materials- stainless steel, SMO or titanium. It is simple to disassemble Tetra Plex units for inspection. The glueless gaskets can be replaced quickly and easily on site, with the plates hanging in the frames. The food grade gaskets can be delivered in a range of materials for different applications and temperatures. The Tetra Plex units are held together by sturdy, pressure graded frames with many smart, hygienic and labor saving features. All frames offer great flexibility for expanding and rebuilding the plate heat exchangers.
Chester-Jensen Co.A complete line of Plate Heat Exchangers is available from Chester-Jensen. Frames are available in solid stainless steel or coated carbon steel. Both metal-to-metal and gasket supported plate designs available in either type 304 or 316 stainless steel and appropriate quantity and thickness of plate sized for individual duty. Custom engineering is standard with all units. Single piece gaskets, molded from a variety of formulated elastomers are selected to best meet application requirements. Gaskets are bonded to plates, for trouble-free service, yet are easily replaced, in the field. Standard six-bolt type closure with optional mechanical spindle or hydraulic assist closures available. Differential operating pressures to 150 PSIG. Computer designed configurations allow users to process single, dual or multiple fluids and/or duties simultaneously.
All plate surfaces can be cleaned and sanitized safely and effectively by properly designed in-place recirculation systems. All units easily opened for thorough internal inspection.
Tetra PakThe comprehensive range of Tetra Alex® homogenizers offers capacities from laboratory pilot scale to the largest food industrial applications with capacities as high as 12,000 gph. The working pressure on each machine size is up to 5,800 psi. All machines are available in standard and aseptic versions.
The Tetra Alex® Homogenizers can handle a wide range of applications, in principle any product that can flow. When used in conjunction with a Tetra Alfast® standardization system for fluid milk, partial stream homogenization can be performed. This process requires only a third of the fluid milk to be homogenized and requires less energy to operate as well as a smaller model of Tetra Alex® homogenizer.
Paul Mueller Co.The Mueller Accu-Therm plate heat exchanger is a compact heat exchanger consisting of embossed heat transfer plates with perimeter gaskets to contain pressure and control the flow of each medium. The gasketed plates are assembled in a pack, mounted on upper and lower guide rails, and compressed between two end frames with compression bolts.
Paul Mueller Co.
Alfa LavalAlfa Laval is now launching a new generation of Contherm® Scraped-Surface Heat Exchangers which offers four new performance-enhancing features. Designed for heating and cooling of sticky, viscous, particulate and crystallizing/phase-change processes, these improvements on Contherm incorporate new features that enhance and/or extend performance limits. A new larger Contherm size, the Contherm 6 x 11, offers 15 percent more surface area than existing units. When utilizing a HIPEX heat exchange cylinder that is constructed of a new thinner and harder grade of stainless steel, the 6 x11 can provide 25% more capacity than traditional sizes. New blade materials with improved physical properties compared to traditional blades are now available.
Niro SoaviThe Twin Panda homogenizer is a tabletop homogenizer from Niro Soavi designed for laboratory/pilot use. The Twin Panda is designed to homogenize samples at pressures up to 8700 PSI. The internal design has special features permitting the homogenizer to handle feeds at high viscosity up to 20,000 cP and at temperatures up to 90°C (194°F) without a feeding pump. The Twin Panda 600 homogenizer is easy to commission and operate. It can easily be dismantled for maintenance and cleaning by the laboratory operator. Homogenization conditions can be optimized and the results used in scale-up to industrial operations.
Scherping SystemsScherping Systems in-line, single pass heat exchangers are crafted using T304 stainless steel tube sheets, tubes, outer shells and reducing adapters. They are available in standard sizes or manufactured to meet your specific heat transfer capacity and space requiements. The heat exchangers include steam inlet, condensate outlet and vacuum break connections as required. Scherping Systems stocked, standard CIP heat exchangers have concentric and eccentric reducing adapters, reducing solution inlet and outlet ports with required tri-clamp connections. The reducing adapters assure proper drainage of horizontally mounted units. Our standard CIP heat exchangers are capable of increasing solution temperature on average of 40 degrees F per pass at flow rates of up to 170 GPM thus allowing you to reach required CIP temperature quickly. Options include: Modulating valves, Steam traps, Vacuum breakers, Tubing hangers and other necessary items for mounting, T304 stainless steel or T316 stainless steel.
WCBAmong the most efficient, with the smallest footprint in the industry, the Waukesha Cherry-Burrell Homogenizer delivers more output for its plant space than any other. Advanced, fluid-dynamically engineered homogenizing valves achieve the desired degree of dispersion/emulsion with lower pressures, requiring less energy and extending the life of moving parts. The unit features precise, non-adjustable plunger seal; double seals standard, single seals optional. Injection cooled and flushed seals resulted in increased seal life.
Headblocks come with integral or hardened replaceable valve seats. The WCB homogenizer also features a sanitary overpressure relief device, and modular valve assemblies, and multiple plunger sizes available for each model. The machines are easy to maintain with front loaded seals and separate drive components.