Hybrid–fully welded plate heat exchangers Datasheet

HYBRID Heat ExchangerVerfahrenstechnikApparatebauUmformtechnikCONTACT INFORMATIONAt VAU, we are here to assist you with all of your heat transfer projects. With more than 25 years experience designing, engineering, and manufacturing heat exchangers, we have the technical expertise and know-how to formulate an innovative solution for your heat transfer application.HYBRID Heat Exchangerfully welded plate heat exchangerCombines the advantages of a plate heat exchanger with those of a shell-and-tube heat exchangerIIIMade in GermanyGRAFIKDESIGN Meike Hannig, München 08/2011VAU Thermotech GmbH & Co. KGHEADQUARTER GERMANY:Schatzbogen 45D-81829 MünchenPhone: +49 (0) 89 / 451027-26Fax: +49 (0) 89 / 451027-43BRANCH AUSTRIA:Ritzlhofstrasse 28A-4052 AnsfeldenPhone: +43 (0)7229 / 81 800Fax: +43 (0)7229 / 81 800www.vau-thermotech.de · e-mail: info@vau-thermotech.deADVANTAGESLOW-TEMPERATURE DESIGNS AVAILABLEEASY-TO-CLEAN TUBING CROSS SECTIONCOMPLETELY WELDED – NO GASKETSLOW PRICE OF HEAT TRANSFER AREAELIMINATES FLOW-INDUCED VIBRATIONHIGH HEAT TRANSFER VALUESCOMPACT DESIGNLOW PRESSURE-DROP DESIGNHIGH-PRESSURE DESIGNS AVAILABLEHIGH TURBULENCE REDUCES FOULINGHYBRID Heat ExchangerAfter this fully welded core is assembled, the heat exchanger is shrouded with two pressure frames, capable of withstanding a vacuum or pressures up to 870 psig (60 bar). Depending on the materials of construction, temperatures achieved can range from -328 °F (-200 °C) to over 1652 °F (900 °C).This assembly provides a very dense heat exchanger assembly, resulting in up to 76 square feet (7.1 square meters) of heat transfer area to every 1 cubic foot (28.3 liters) of volume. The 0.4 to 0.8 mm plate thickness results in heat exchanger weights and fl oor space requirements so low that only the plate heat exchanger designs can compete.THE PROCESS We start by pressing a unique plate pattern into a sheet of material, creating an enhanced heat transfer surface. Then we mate this to a similar sheet that has been rotated to form a passage between the two surfaces. We call this pairing an „element.“ We then stack the elements until we achieve the confi guration and the area required for your particular application, as determined by our computerized sizing program.This entire stack (up to 100,000 square feet [9290 square meters] in a single core) is then fully welded on alternating edges, creating the core of the Hybrid. The core is welded so that one product fl ows through the plate side (i.e. down the length of the unit) and the other product fl ows through the tube side (the width of the unit). The exact pass confi guration is determined by the specifi c needs of your process. The edges of the core are then attached to the headers, creating a completed heat exchanger. The headers can even be bolted into place, allowing access for easy cleaning.The arrangement of the headers creates a very fl exible heat transfer design, using a combination of cross-fl ow designs and multiple passes. Nozzle sizes are not restricted as with the plate heat exchanger.VerfahrenstechnikApparatebauUmformtechnikHYBRID HEAT EXCHANGERImagine a heat exchanger that combines all of the features of a plate heat exchanger with those of the shell-and-tube design.It would be compact and lighter, have less material and lower hold-up volume, and utilize less fl oor space; yet it still keeps all the features of the shell-and-tube design – high pressure, high temperature, and no gaskets.If you can imagine all of this, then you have come up with the greatest of all heat exchangers … the Hybrid.The Hybrid is the fi rst heat exchanger to successfully combine the high performance of the plate-and-frame design with the high pressure and temperature capabilities of the shell-and-tube design.Applications for liquid-to-liquid, liquid-to-gas, and gas-to-gas are typical for the Hybrid heat exchanger. However, change-of-state evaporation (falling fi lm or rising fi lm) and condensing are especially suitable for the Hybrid.The unique low pressure-drop design, combined with the turbulent performance, creates an effective environment for these unique types of heat transfer requirements.The materials of construction are widely variable, dependent upon your process needs. Stainless steel (304 and 316 grades) are the most common. Other materials are Hastelloy, Incoloy, Titanium, or any other material that displays good forming and welding procedures. Designs often have different materials in the core and the headers, giving you a more substantial savings.OUTLET TUBE SIDEOUTLET CORRUGATED SIDEINLET CORRUGATED SIDEPLATE PACKPASS PLATE> CROSS SECTION OF A HYBRID HEAT EXCHANGERShell-and-tube heat exchangerHybrid heat exchangerPlate heat exchanger (gasketed)POWER STATIONS PHARMACEUTICALSREFRIGERATIONCONDENSINGHEATINGVAPORIZATIONPRE-HEATERSPETROCHEMICAL INDUSTRYNATURAL GAS PRODUCTIONSUGAR EVAPORATORSINTERCHANGERS CHEMICAL INDUSTRYINDUSTRIES & APPLICATIONS= PROFILED SHEET