Mechanical confirm plate and frame units are tightened as recommended by the manufacturer. Its important to mention these historic brands as the longevity of. It is the responsibility of each person operating or working on phes to comply with all applicable safety regulations. The information supplied in this manual is based on over four decades of field experience with our heat exchangers. Your heat exchanger will give you full satisfaction provided you maintain it well, in full, and diligently. Its important to visually inspect the gaskets, frame and bars whenever you open up the heat exchanger for any kind of maintenance. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. This manual is a guide for installation, commissioning and maintenance of plate type heat exchangers supplied by sondex. Production and supply of every type of nut and pin. All gasketed plate heat exchangers are designed to allow full disassembly of the unit for thorough cleaning.
These industrial solutions combine the extensive array of heat exchangers for evaporation, pasteurization and uht, pumps rotary, centrifugal, inducer, etc. The bell and gossett brazed plate bpx and gasketed plate gpx models come in a variety of sizes and capacities for optimum heat and thermal transfer. Even in a small heat exchanger that means millions of brazed joints. Each one is formed through capillary action as the brazing alloy on the surface of each plate melts during the high temperature operation and fuses to the parts in contact with it. Insulation may be hiding small leaks so also check for areas of wet or water stained insulation. 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. Because each of the plates has a very large surface area, the plates provide each of the fluids with an extremely large heat transfer area. A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids.
Opening your plate heat exchanger is the first step in inspecting the gasket and plate condition. 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. The simple reason for this is plate fouling as matter builds up in the grooves of a plate, the heat transfer capacity of that plate diminishes because the fouling is less thermally conductive than the plate itself. Following the instructions contained in this manual will extend the service life of your heat exchanger. Widegap is a heat exchanger used for applications involving fibrous liquids, highly viscous fluids, and fluids containing coarse particles.
Make sure the piping system is cleaned to prevent entrance of gravel, sand, welding flux, etc. Additionally, our gasketed plate heat exchangers come with a maintenance friendly assembly and sealing technology, ensuring low service and maintenance costs. In this section we have gathered all our productrelated documents for you. Be sure to keep the following documents in a safe place. Plate heat exchanger installation and operation manual. Operating any plate heat exchanger at temperatures above the design temperature of the gasket material will result in gasket and adhesive failure. The low space temperature may result in condensate forming in the heat exchanger. Trane eventually became altec and charts heat exchanger group was born in 1998 with the acquisition of marston in the. The alternative channels maximises the heat transfer surface in a compact manner. In addition to cooling with passive heat exchangers, similar results can be achieved with fanassisted reardoor heat exchangers and refrigerantcooled reardoor exchangers. When the plate heat exchanger is then assembled and tightened, the gasket provides a tight seal around the plate.
Certification unit sizes 030, 045, 060, 075, 100, and 125 are designcertified by the canadian standards association for use in. In alfa laval plate heat exchangers, heat is transferred from one medium to another through thin metal plates which have been pressed into a special pattern. Plate heat exchangers were first produced in the 1920s and have since been widely used in a great number of sectors a plate exchanger consists of a series of parallel plates that are placed one above the other so as to allow the formation of a series of channels for fluids to flow between them. Data center rack cooling with reardoor heat exchanger. Due to the large number of different products in the field of heat exchange, we have divided the documents into product areas. Plate heat exchanger maintenance pdf all images courtesy of alfa laval. Our wide range of plate corrugations, connection sizes, plate lengths and widths enable an ideal configuration according to your exact requirements. Plate type heat exchangers are not widely used because of the inability to reliably seal the large gaskets between each of the plates. Protection sheet removable covering for the top and sides of the plate heat exchanger, which provides protection in the event of spray leak.
Singlewall, heat exchanger doublewall, heat exchanger component material heat exchanger shell carbon steel, astm sa106, gr. Cleaning plate heat exchangers d epending upon the nature of the fluids involved and the application, the heat exchangers performance level may decline over a period of time. Alfa laval phe manual m15, tl10, tl20, ts20, mx25, m30, ma30. The hot fluid flows in one direction in alternating channels while the cold fluid flows in true countercurrent flow in the opposite alternating channels. When starting up a plate heat exchanger for the first time, observe the following procedures. The hot and cold fluids alternate between each of the plates. Gasketed plate heat exchangers hxxxliquid gasketed plate heat exchangers are particularly suitable for large fl ows and high cooling capacities.
Thermalines service experts are able to provide maintenance and repairs as well as help create a maintenance plan for your plant. Manuals for the hisaka plate heat exchanger consist of the following seven related documents. This means that the plate heat exchanger can also be dismantled for cleaning and maintenance. 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. Cleaning plate heat exchangers d epending upon the nature of the fluids involved and the application, the heat exchanger s performance level may decline over a period of time. In the phe the plates create a frame where the plates are pressed with headers and tie bars, and the seal is guaranteed by gaskets. Types of heat exchangers shell and tube, plate type. For maintenance actions not described in this manual, contact your alfa laval representative for advice. The schedule assumes contherm or convap production operation of approximately 40 to 50 hours per week. The stack of heat transfer plates and gaskets is clamped together with bolts in a frame. W essels manufactures three heat exchanger designs. Higher temperatures may be reached with special gasket and adhesive materials. The plate exchanger, shown below, consists of corrugated plates assembled into a frame.
The bell and gossett line of plate heat exchangers offer maximum efficiency in minimal spaces. Connections holes matching the piping lead through the frame plate, permitting the media to enter into the heat. If the heat exchanger is located at the inlet or discharge of a blower with a pulsating flow, such as a roots type rotary lobe blower, the heat exchanger must be protected from the pulsation by a chambered silencer. Apv offers highly effective turnkey automation and process engineering solutions. Brazed plate heat exchangers installation, operation, and maintenance manual 7 4. Mounting position for heating applications the plate heat exchanger can be installed in any position. Connection plate plate used to separate two or more services in one plate heat exchanger. Due to the high heat transfer efficiency of the plates, plate type heat exchangers are usually very small when compared to a tube and shell type heat exchanger with the same heat transfer capacity. Cleaning plate and frame heat exchangers tes engineering.
Plate heat exchanger 2 operation and maintenance manual. This deterioration in performance is typically due to the buildup of scale, sediment andor biological mass on the plates. Foreword thank you for purchasing the hisaka plate heat exchanger. Plate heat exchanger working principle, how a plate heat. Leakage between plate pack and frame mark the area where the leakage seems to be and open the heat exchanger. Additionally, our gasketed plate heat exchangers come with a maintenancefriendly assembly and sealing technology, ensuring low service and maintenance costs. Cleaning heat exchanger plates with special chemicals. Therefore, it can produce the most effective performance from the compact size. Also the name plate on the heat exchanger will be adapted. There are 16 hole combinations possible depending on the application and temperature approach. Alfavap is a tailormade, rising film plate surface evaporator.
The hisaka plate type heat exchanger has the excellent features as follows. The normal maximum operating temperature for a plate heat exchanger is approximately 120 degrees celsius. Unlike conventional shell and tube heat exchangers, our units. Phe stands for plate heat exchanger as distinct from a tube and shell type. Check that the plate pack dimension is within the limits specified on the drawing.
Contherm scraped surface heat exchanger preventative maintenance schedules below is a periodic maintenance schedule for your contherm scraped surface heat exchanger or convap scraped surface evaporator. Following brazing, bahx construction is completed with the welding of the. Operation and maintenance manual table of contents a. 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. Wmbp heat exchangers should be installed in such a way that there is sufficient free space around each unit to perform maintenance work. Trane eventually became altec and charts heat exchanger group was born in 1998 with the acquisition of marston in the uk. The plate pack performing such a service is called a section. The four holes in the plate are distinguished as 1, 2, 3, and 4 from their positions, and 0 means no hole. Warranty conditions the warranty conditions are usually included in the signed sales contract prior. The heat exchanger must be isolated from system vibrations using flexible piping connections and isolation pads on the mounting feet.
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. In the absence of regularly scheduled maintenance, a phes efficiency naturally declines. Plate type heat exchanger consists of plates instead of tubes to separate the hot and cold fluids. Fast and detailed cleaning of heat exchanger plates. Brazed aluminum heat exchangers chart industries, inc. To ensure youre keeping your plate heat exchanger phe properly maintained, you should keep basic records. Provide air vent valves for the heat exchanger so that it can be purged to prevent or relieve vapor or gas binding. Maintenance of your plate and frame heat exchanger should be part of your scheduled service program.
A habit of cursory visual examinations can save a lot of time and money in the long run. All piping connections to wmbp heat exchangers are male npt. Fired heaters the selection of a heat exchanger depends on many factors including capital and operating costs, fouling, corrosion tendency, pressure drop, temperature ranges, and. English maintenance eng 12 plate heat exchanger eng manual cleaning of opened units deposits removable with water and brush plates need not to be removed from the plate heat exchanger during cleaning. 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. Phe drawings phe plate heat exchanger drawings mentioned in the manual are the drawings included in the delivery of the heat exchanger. Breaking down the basics of plate and frame heat exchangers and preventive maintenance tips to keep. B, asme u stamped with 316 ss twopass head heat exchanger tube bundle 58in od x 16 bwg wall, admiralty brass heat exchanger tube sheets leadfree brass heat exchanger tube bundle end cap leadfree brass. Heat exchangers xylem applied water systems united states. Delivery of heat exchanger operating like it is new. 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. Diabon is a graphite plateandframe heat exchanger used for tough corrosive media.
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