Plate heat exchanger installation and operation manual. Plate heat exchangers for general refinery services part iplateandframe heat exchangers. Alfa laval aq4 alfaqtm ahricertified plate heat exchanger. Plateandframe heat exchangers phes are used in many different processes at a broad range of temperatures and with a variety of substances. Exchanger inspection 101 visual inspection of shell and tube heat exchangers. You can simulate the plate heat exchanger perfect for your needs, any time of the day, from anywhere. Inspection procedure for shell and tube heat exchangers. A plate heat exchanger is a compact type of heat exchanger that uses a. Types of heat exchangers shell and tube, plate type. Download heat exchangers selection rating and thermal design book by sadik kakac pdf, heat exchangers selection rating thermal design book mechanical engineering design process engineering aerospace engineering electronic engineering industrial engineering whatsapp tricks fluid mechanics material science gas turbine. Research into phes has increased considerably in recent years and this is a compilation of knowledge on the subject. 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. The plate heat exchanger consists of a frame, which consists of a head.
With todays technology, claiming to have done a complete examination of a heat exchanger without an inspection camera, borders on fraud, or at the very least, it would be incompetent. The four holes in the plate are distinguished as 1, 2, 3, and 4 from their positions, and 0 means no hole. Hisaka websimulator hws plate heat exchanger this is the. 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. Containing invited contributions from prominent and active investigators in the area, it should enable graduate students, researchers. Also check for tube od wear where the pass through baffles. A plate heat exchanger is considered with n, number of channels. Khan, in handbook of materials failure analysis with case studies from the chemicals, concrete and power industries, 2016. For gasketed plate heat exchangers please fill in the specification sheet in this brochure and send it to the technical sales department.
Instruction manual plate heat exchangers it alfa laval. As the worlds largest manufacturer of heat exchangers, we are very proud of our products and services. The hot and cold fluids alternate between each of the plates. Plate heat exchanger parts and service when downtime is money, availability is everything.
Heat exchanger equipment field manual provides an indispensable means for the determination of possible failures and for the recognition of the optimization potential of the respective heat exchanger. Heat exchanger inspection checklist qc, inspection. Insulation may be hiding small leaks so also check for areas of wet or water stained insulation. The guide shows photos of water heaters that have already ruptured. There are many areas on a heat exchanger that you can not get to for visual inspections while the heat exchanger is in the furnace. For material impact requirement ug 84 and ucs 66 pwht cycle ucs 56.
Verify proper location of impingement plate and for tube od erosion in the vicinity of inlet nozzles. We value you as our customer and wish to assure your satisfaction. Manuals for the hisaka plate heat exchanger consist of the following seven related documents. Pdf modeling and design of plate heat exchanger researchgate. The pressurized components of the shell and tube exchanger are designed to be in accordance with a pressure vessel design code such as asme viii 1993 or bs5500 1994. Plate heat exchanger working principle, how a plate heat. 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. A defective plate heat exchanger is investigated and the main aim is to find the reason for that damage and how this can be avoided. Guidelines for the design, materials, fabrication, inspection, testing and preparation for shipment of aircooled heat exchangers for use in the petroleum and natural gas industries.
The two most common heat exchanger design problems are those of rating and sizing. Vendor shall submit to purchaserowner the timetemperature chart of post weld heat treatment. A plate heat exchanger is a compact type of heat exchanger that uses a series of thin plates to transfer heat between two fluids. The shell and tube exchanger basically consists of a number of connected components, some of which are also used in the construction of other types of exchangers. The sondex spiral heat exchanger will be provided with flanges, connections, threaded pipes, etc. The maximum particle size depends on the diameter of the tube. This comprehensive reference covers all the important aspects of heat exchangers hestheir design and modes of operationand practical, largescale applications in process, power, petroleum, transport, air conditioning, refrigeration, cryogenics, heat recovery, energy, and other industries. Thank you for purchasing the hisaka plate heat exchanger. Combining each of these resistances in series gives. Check the pressures and temperatures of the media and make sure that these are not more than the values specified on the identification plate. If you nevertheless should have a problem with your alfa laval plate heat. Thank you for purchasing an alfa laval plate heat exchanger. It is not uncommon for plateandframe heat exchangers to have overall heat. On the last pages of this book of instruction you find 2.
Use performance audit to avoid having to open the plate heat exchanger for inspection. The plates are made of stainless steel cr17ni12mo2. Prepare a copy of uw 51 and 52 radiography acceptance criteria with appendix 4, other ndt appendis skim through. Heat exchanger failure analysis of heat exchanger page. Vahterus accepts no liability for damage caused through the incorrect. Heat exchangers selection rating and thermal design pdf. Alfa laval gasketed plate heat exchangers are the most costeffective solution. 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. Contents preface li acknowledgments liii author lv chapter1 heatexchangers. There are several forms of construction, mainly associated with the methods used to seal the edges of the plates gaskets, braze, welding or laser welding. 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. Heat exchanger design handbook mechanical engineering. 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.
The objective of this book is to provide engineers with sufficient information to make better logical choices in designing and operating the system. Published by ronnoco publishing, a consumers guide to water heater maintenance book, is a flip chart book your technician can use in the presence of a homeowner during the inspector safety inspection of their water heater. Specifics related to dimension of heat exchanger tema. Any flow pattern may exist in the plate heat exchanger loop flow, series flow and complex flow. The following assumptions are made in the modelling of plate heat exchanger see 4, 5,8,11. The heat exchanger shall be operated by persons who have studied the instructions in this manual and have knowledge of the process. Plate heat exchanger 2 operation and maintenance manual. In any process, it should be kept as close as possible to the design value, with a tolerance range. Maximize plate and frame heat exchanger performance and lifespan by letting the expert who built the equipment repair and maintain it. Standard design the plate heat exchanger consists of a pack of corrugated metal plates with portholes for the passage of the two fluids between which heat transfer will take place. Inspection procedure for shell and tube heat exchangers printed. Dpt inspection is an option basic flowchart of full service package for hisaka plate heat exchanger hisakas phe maintenance program ensures top performance and lasting trouble free use a wealth of maintenance options giving reliable support disassembly. Reflecting the authors extensive practical experienc.
Feb 23, 2000 this comprehensive reference covers all the important aspects of heat exchangers hestheir design and modes of operationand practical, largescale applications in process, power, petroleum, transport, air conditioning, refrigeration, cryogenics, heat recovery, energy, and other industries. The authors have presented more than 100 short intensive courses on shellandtube heat exchangers, closed feed water heaters, and tubular exchanger inspection, maintenance, and repair in the united states, canada, and europe. Use cleaninginplace cip to avoid the need for opening the heat exchanger for cleaning. In the focus on finding failure advanced class for heat exchanger inspection training, each technician will learn how to increase their ability to be truly focused on finding failure to incredible levels. Warning when connecting the pipe system to the spiral heat exchanger make sure that no stress or strain is imposed, by the pipe system, onto the spiral heat exchanger. This manual is a guide for installation, commissioning and maintenance of plate type heat exchangers. We will help you to find the appropriate plate heat exchanger for your specific application. Practising engineers should find this book a veritable goldmine of information on all aspects of heat exchangers conception, design, fabrication, inspection and maintenance. Mechanical confirm plate and frame units are tightened as recommended by the manufacturer.
If a heat exchanger is taken out of service, flush with freshwater and drain completely. Plate heat exchanger installation and operation manual thermaline. The heatexchanger plates failed due to pitting and perforation. There are a variety of methods of inspecting or testing heat exchangers. 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. 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. Along the length of the tubes tube tube sheet joints can be visually inspected and standard ndt techniques, like penetrant testing or magnetic testing can be utilized. Alfa laval has your heat exchanger repair, service and spare parts needs covered in nz. Plate heat exchangers phes are the most common form of compact heat exchanger, but their area densities are inferior to other types discussed in this chapter. This is a draft and must be edited based on your po requirements. The pressure drop is an important parameter that needs to be considered in the design and optimization of a plate heat exchanger.
A plateandframe heat exchanger figure 1 consists of pressed, corrugated metal plates. Access the url below and click on the websimulator icon. This leak test confirms all plates are defect free. Modeling and design of plate heat exchanger intechopen. Here in this section of mechanical books, you will find a collection of free heat transfer pdf books. Vessels shall, prior to post weld heat treatment, be carefully inspected by visual and nondestructive examination for dimensionless and any defect, so as to avoid welding repair after completion of heat treatment.
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. Plate andframe heat exchangers phes are used in many different processes at a broad range of temperatures and with a variety of substances. Plate type heat exchanger consists of plates instead of tubes to separate the hot and cold fluids. This includes knowledge of precautions regarding media type, pressures, temperatures in the heat exchanger as well as specific precautions required by the process. Aircooled heat exchangers for general refinery service.
This manual provides information needed to install, operate and carry out maintenance of your gasketed plateandframe heat exchanger. The media flowing through the heat exchanger should not contain particles larger than 0,5 mm diameter. Plate heat exchangers were first introduced in 1923 for milk pasteurization applications, but are now used in many applications in the chemical, petroleum, hvac. Reasonable price due to these features, the hisaka plate heat exchangers are highly appreciated in all industries. Report broken links to contact us advances in heat transfer download computational fluid dynamics and heat transfer download computational methods in fluid and heat transfer download convection. Tubular heat exchanger inspection, maintenance, and repair will be your most valuable costcutting field manual. This is due to the larger area the plates provide over tubes. Only about 20% of the surface of a heat exchanger can actually be viewed with a flashlight and a mirror. Chapter 5 heat exchangers faculty of engineering and. Standard design the plate heat exchanger consists of a pack of corrugated metal plates with portholes for the passage of. Heat exchanger inspection training the inspector camera.
Also the name plate on the heat exchanger will be adapted. This platetype heat exchanger was the part of a power generation system and it was designed to transport heat of closecircuit jacket, primary cooling system. Api standards for heat transfer equipments enggcyclopedia. The heat exchanger must be isolated from system vibrations using flexible piping connections and isolation pads on the mounting feet. Pshe is a totally welded plate heat exchanger without any gas kets between the plates. All gasketed plate heat exchangers are designed to allow full disassembly of the unit for thorough cleaning. Plates are pressurewashed, rinsed and subjected to either hot caustic stripping andor a manual procedure for gasket and scale removal. Heat exchangers 73 individual thermal resistances of the system. Our gasketed plate heat exchanger range is the result of decades of experience, research and development in heat transfer technology. 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. Area of application a plate heat exchanger can be used wherever there should be heat transfer between two media. Plate heat exchanger inspection and test plan this plate heat exchanger inspection and test plan article provides you with a sample plate heat exchanger itp. Plate heat exchangers a plate heat exchanger, phe, is a compact heat exchanger where thin corrugated plates some 0.
A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids. The customer is invited to observe the infrared inspection process and make. Searching documents and internet sources the following is what i found on heat exchanger inspection methods and sources. Plate heat exchangers an overview sciencedirect topics. Inspection of the entire length of heat exchanger tubes however brings along a few extra challenges. The heat exchanger inspection article provides you with information about the inspection of the heat exchanger and heat exchanger testing during the manufacturing phase, as well as inservice inspection in operating units.
We have been servicing heat exchangers for more than 70 years. Since 1979, he has consulted on a variety of problems with process and power generation heat exchanger problems. The hisaka plate type heat exchanger has the excellent features as follows. The inspection of heat exchangers is the one area of equipment inspection where i firmly advocate the use of a check list to make sure you got everything. The plate andframe or gasketed plate heat exchanger essentially consists of a pack of thin rectangular plates sealed around the edges by gaskets and held together in a frame. The chapter of heat exchanger thermohydraulic fundamentals will be a very useful reference for teachers of this subject. This is a handson tech teaching tech workshop on greatly increasing your abilities at finding failure using the inspector camera. 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. There are 16 hole combinations possible depending on the application and temperature approach. Plate type heat exchanger this is constructed by a series of corrugated parallel plates held firmly together between frames. We have prepared this instruction manual to assist you with your alfa laval plate heat exchanger in various situations.
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