The major types of heat exchanger include double pipe, shelltube, plate and shell, plate fin, and phase change heat exchangers. Cleaning heat exchanger plates with special chemicals. By combining innovative design with high quality we. This produces the highest possible heat transfer coefficients with the lowest possible pressure. In this section, names of heat exchanger parts are mentioned for the first time.
Following terms are used throughout this manual to bring attention to the. Fortunately, phes are generally easier to maintain than other types of heat exchangers, and problems tend to be easier to diagnose in the absence of regularly scheduled maintenance, a phes efficiency naturally declines. Wcr plate corrugations are designed to achieve turbulence across the entire heat transfer area. This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids. Never support the heat exchanger solely by the piping.
Warranty conditions the warranty conditions are usually included in the signed sales contract prior. Plate heat exchanger working principle, how a plate heat. Just like a car or a computer, a heat exchanger needs regular maintenance to keep running at peak performance. The four holes in the plate are distinguished as 1, 2, 3, and 4 from their positions, and 0 means no hole.
This article is dedicated to identifying issues your plate heat exchanger phe might be having, and setting you on the path to the right solution. Pdf new plates for different types of plate heat exchangers. Maintaining a plate heat exchanger and its related cost is not just a good idea it is a necessity for any successful business strategy concerned with its continued manufacturing productivity. Plate heat exchangers a plate heat exchanger, phe, is a compact heat exchanger where thin corrugated plates some 0. The flow in a heat exchanger can be arranged as parallel flow, counter flow, and cross flow. However, the plate heat exchanger development race began in the 1930s and these gasketed plate and frame heat exchangers were mainly used as pasteurizers e. Thank you for purchasing the hisaka plate heat exchanger. Service plate heat exchanger gaskets, plates,phe gaskets.
Plate type heat exchanger design linkedin slideshare. The force distribution ensures optimum metal flow in the heat exchanger plate. We value you as our customer and wish to assure your satisfaction. Delivery of heat exchanger operating like it is new. For maintenance actions not described in this manual, contact your alfa laval representative for advice. Design a plate heat exchanger by according more advantages and evaluate the cost of newly designed. Inspection of unit at regular intervals and as frequently as experience indicates, an examination should be made of the interior and the exterior of the heat exchanger.
Also the name plate on the heat exchanger will be adapted. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. Gaskets, in addition to their sealing effect, serve to direct the flow of the fluids, and are placed along the grooves at the edges of the plates. Since the phe components can be separated, it is possible to. We provide complete specifications of plates and gaskets for the customers of sweden alfalava, denmark apv, german gea, american tranter and denmark sondex etc. Paul mueller company academy recently posted an informative article, good maintenance habits for plate heat exchangers to help identify possible performance issues. Mit, one of the most known and preferred brands of turkey, has been continuing creating new ideas and developments to improve plate. A heat exchanger follows this principle in its endeavour to reach equalization.
This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids are spread out over the plates. Trained experts with years of experience with all heat exchanger brands and models inspect every piece of equipment prior completing any work on the unit. It is safe to say that it would be rare to find someone in this industry that does not believe in having a plate heat exchanger maintenance strategy. The plate type heat exchanger is the most efficient type of heat exchanger with its low cost, flexibility, easy maintenance, and high thermal transfer. Ttp braze plate heat exchanger with marine grade stainless plates and nickel. For your information, see chapters 4a or 4b function. Brazed plate heat exchangers ttp series installation guide. We have prepared this instruction manual to assist you with your alfa laval plate heat exchanger in various situations. Introduction plate heat exchanger is a type of heat exchanger which consists of many corrugated stainlesssteel sheets separated by polymer gaskets and clamped into a steel frame. Each of these plates are surrounded with gaskets to control the flow of the. Nearly all issues boil down to some form of plate fouling or gasket failure, but its important to determine whether its a onetime problem or an inherent flaw in your system the phe is specified incorrectly. Pdf modeling and design of plate heat exchanger researchgate. In standart plate heat exchangers, there are 4 inout ports and two of them are for heater liquid and two of them for heated liquid.
The highperformance plates from hrs provide the optimum heat exchanger for every thermal problem. Gasketed plate heat exchangers hxxxliquid gasketed plate heat exchangers are particularly suitable for large fl ows and high cooling capacities. Fast and detailed cleaning of heat exchanger plates. Plate type heat exchanger working principle, working. This means that the plate package is tightened to its correct measurement a.
The plate heat exchanger shall be operated by persons who have studied the instructions in this manual and have knowledge of the process. Kelvion plate heat exchanger brochure en pdf, 4 mb kelvion operation manual gasketed plate heat exchanger en pdf, 5 mb kelvion manufacturer. Pdf design and analysis of a plate heat exchanger in the view of. The basic structure of a plate heat exchanger consists of stainless steel plates, with different pressed patterns for turbulence, stacked together as in the image above. Funke offers a wide range of plate heat exchangers. Phe drawings phe plate heat exchanger drawings mentioned in the manual are the drawings included in the delivery of the heat exchanger. Cleaning plate and frame heat exchangers tes engineering.
The information supplied in this manual is based on over four decades of field experience with our heat exchangers. Insulation may be hiding small leaks so also check for areas of wet or water stained insulation. The heat transferred from one flowing liquid to the other through a plate heat exchanger can be determined from u a. Failure to mount the heat exchanger properly can result in severe personal injury, death or substantial property damage. The hot fluid flows in one direction in alternating channels while the cold fluid flows in true countercurrent flow in the opposite alternating channels. The plate exchanger, shown below, consists of corrugated plates assembled into a frame. The media flowing through the heat exchanger should not contain particles larger than 0,5 mm diameter.
The heat energy transfer across the plate acts to change the temperatures of the two media. Plate heat exchanger installation and operation manual. Fortunately, plate heat exchangers are generally easier to maintain than other types of heat exchangers, and. Quick startup and shutdown is a major cause of heat exchanger damage. With a plate type heat exchanger, the heat penetrates the surface, which separates the hot medium from the cold one very easily. This includes knowledge of precautions regarding media type, pressures, temperatures in the plate heat exchanger as well as specific precautions required by the process.
All gasketed plate heat exchangers are designed to allow full disassembly of the unit for thorough cleaning. Caution the heat exchanger may have sharp edges, excercise care in handling the exchang. Plate heat exchanger 2 operation and maintenance manual. It transfers heat by placing thin, corrugated metal sheets side by side and connecting them by gaskets. Brazed plate heat exchangers installation, operation, and maintenance manual 7 4. Alfa laval supplied the first plate heat exchangers to the dairy. Maintenance of your plate and frame heat exchanger should be part of your scheduled service program. As the worlds largest manufacturer of heat exchangers, we are very proud of our products and services. The plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts. Modeling of a counter flow plate fin heat exchanger. Maintenance and cleaning may only be done with a shutdown heat exchanger. A plate and frame heat exchanger is a stack of thin, corrugated metal plates most often stainless steel, with ports for the passage of two fluids between which the heat transfer will occur. The system uses a number of small cylinders rather than a single large one, which offers numerous advantages.
Plate heat exchanger operational and maintenance manual. Mechanical confirm plate and frame units are tightened as recommended by the manufacturer. A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. The normal maximum operating temperature for a plate heat exchanger is approximately 120 degrees celsius. Production and supply of every type of nut and pin. Some patterns combine multiple channel depths in a single plate to.
With special production, it is possible to produce heat exchangers which have more than one heater or heated liquids. The individual cylinders can be grouped in different arrangements to. Manuals for the hisaka plate heat exchanger consist of the following seven related documents. Standard design the plate heat exchanger consists of a pack of corrugated metal plates with portholes for the passage of. Flow of the substances to be heated and cooled takes. Reliability, availability and maintenance optimisation of heat exchanger networks article in applied thermal engineering 301.
This manual is a guide for installation, commissioning and maintenance of plate type heat exchangers supplied by sondex. Thank you for purchasing an alfa laval plate heat exchanger. Hds benefits from plate heat exchangers alfa laval. It is therefore possible to heat or cool fluids or gases which have minimal energy levels. Operating any plate heat exchanger at temperatures above the design temperature of the gasket material will result in gasket and adhesive failure. The spare parts we provide are widely used in the heating, cooling and heat recovery process in many industrial fields. Unless otherwise agreed, alfa laval delivers the plate heat exchanger ready to be put in service upon arrival. This is the first plate heat exchanger design website opened on the internet in the world. The hisaka plate type heat exchanger has the excellent features as follows. The alternative channels maximises the heat transfer surface in a compact manner. Plate heat exchangers all function similarly in that product flows through channels created by two mating plates with hot fluid on one side of the plates and cold fluid on the opposite side. Reliability, availability and maintenance optimisation of.
A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids. R sekulib university of kentucky introduction a heat exchanger is a device that is used for transfer of thermal energy enthalpy between two or more fluids, between a solid surface and a fluid, or between solid particulates and a. Provide air vent valves for the heat exchanger so that it can be purged to prevent or relieve vapor or gas binding. A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat. Heat exchangers visually check heat exchanger for leaks at the connection points to the heat exchanger as well as the body of the heat exchanger. This means that the plate heat exchanger can also be dismantled for cleaning and maintenance. The hot and cold fluids alternate between each of the plates. Alfa laval has the most comprehensive range in the market. T lm where u is the average thermal transmittance from one flow to the other wm2 k1, a is the overall heat transfer area m 2 and. Fluids are a subset of the phases of matter and include liquidsgasesplasmas andto some extentplastic solids. Phex llc has been designated as the official aftermarket service provider for the paul mueller company. Following the instructions contained in this manual will extend the service life of your heat exchanger. The stack of heat transfer plates and gaskets is clamped together with bolts in a frame.
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