Plate heat exchanger 2 operation and maintenance manual. 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. There are two basic types of plate heat exchangers. There are several forms of construction, mainly associated with the methods used to seal the edges of the plates. These problems vary depending on the type of plate being used but are most. A heat exchanger is a device that is used to transfer thermal energy enthalpy between two or more fluids, between a solid surface and a fluid. This is due to the larger area the plates provide over tubes. M3, m6, m10, m15 series plate heat exchanger alfa laval. The theory behind heat transfer plate heat exchangers. This heat exchanger consists of a pack of fines which are arranged in straight, offset and in wavy form to increase the effectiveness of the device. Takes up much less space than a traditional shellandtube heat exchanger.
Different types of heat exchangers in addition, the overall heat transfer equation for the exchanger must be solved simultaneously. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing and sewage treatment. It is not uncommon for plateandframe heat exchangers to have overall heat. The plateandframe or gasketed plate heat exchanger. Plate heat exchangers an overview sciencedirect topics. May 02, 2014 both plate type and shell and tube heat exchangers are normally used on ships. The most notable advantages of a plate heat exchanger are. The purpose of this thesis was to make the design of gasketed plate type heat exchangers easier, simple, and accurate by reducing human. Copper brazed plate heat exchangers are pressure resistant up to 30 bar, nickel brazed up to 10 bar. The customized dimensions mould and high precise oem replacement of most models are both for client requirements. Gasketed plate heat exchangers hxxxliquid gasketed plate heat exchangers are particularly suitable for large fl ows and high cooling capacities. The stack of heat transfer plates and gaskets is clamped together with bolts in a frame.
The plate andframe heat exchanger design consists of stacked of corrugated plates which are bonded together. Hisaka websimulator hws plate heat exchanger this is the. Merits and demerits of tube and plate type heat exchangers. The plate heat exchanger consists of different heat transfer plates, which are sealed by gaskets, or brazed, or welded together. Pdf a heat exchanger is a heat transfer device that exchanges heat between two or more process fluids.
Plate heat exchangerplate heat exchanger gasket and platehfm. Pdf modeling and design of plate heat exchanger researchgate. A plate heat exchanger is a compact type of heat exchanger that uses a series of thin plates to transfer heat between two. Reasonable price due to these features, the hisaka plate heat exchangers are highly appreciated in all industries. A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. 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. This means that the plate heat exchanger can also be dismantled for cleaning and maintenance. Pdf selection of heat exchanger types gerard hawkins. Access the url below and click on the websimulator icon. Generally it offers the best solution to thermal problems, giving the widest pressure and temperature limits within the constraint of current equipment.
Pdf heat exchanger design handbook matt pennington. The gasketed plate heat exchanger phe is a very important type of equipment for heat transfer between liquid streams inasmuch as it is a very compact apparatus with very high overall heat transfer coefficients and moderate pressure losses, able to fulfill full counterflow enabling very small end temperature differences, single pass or. The 3d model is animated so we can take it apart and view all the main components. Introduction to heat exchangers bengt sunden lund institute of technology. In this type of heat exchanger an intermediate liquid or solid storeshold the heat which is then moved to the other side of the heat exchanger to release this stored heat and becomes cool. Jun 22, 2018 a plate type heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. It is not uncommon for plate andframe heat exchangers to have overall heat. These plates include the corrugated pattern ex and fx series, the herringbone pattern rx, ux, lx, sx, and. Some examples of direct transfer type heat exchangers are tubular, plate type, and extended surface exchangers. The heat transfer between the two fluids takes place through the plates. For better heat transfer the plate and fin heat exchanger is made up of aluminum alloys. Understanding heat exchangers types, designs, applications.
A compact heat exchanger is a device characterized by a high heat transfer area per unit volume more than 300 m2m3. A plate andframe heat exchanger figure 1 consists of pressed, corrugated metal plates. The design of the plates induces the turbulent flow required for efficient heat transfer. Both type of heat exchangers have advantages and disadvantages. Plate type heat exchangers are not widely used because of the inability to reliably seal the large gaskets between each of the plates. The plate pack is assembled between a fix frame plate and a movable pressure plate and compressed by tightening bolts. A plan for increasing heat exchanger performance for shell and tube exchangers should consider the following steps. The four holes in the plate are distinguished as 1, 2, 3, and 4 from their positions, and 0 means no hole. Some examples of directtransfer type heat exchangers are tubular, plate type, and extended surface exchangers. All these heat exchangers can be operated in both parallel and. Plate heat exchanger maintenance manual customer name. 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.
You can simulate the plate heat exchanger perfect for your needs, any time of the day, from anywhere. This type of exchanger is designated as a recuperative heat exchanger or simply as a recuperator. There are different types of compact heat exchanger design available. The hisaka plate type heat exchanger has the excellent features as follows. By brazing every second plate together and then turning them 180 degrees, theyre able to create two separate flow channels in counter current.
Bphebrazed plate heat exchangers and pheplate heat exchangers. The heat exchanger shall be operated by persons who have studied the instructions in this manual and have knowledge of the process. Each pair of plates creates a channel through which one fluid can flow, and the pairs are stacked and attachedvia bolting. Plate heat exchanger working principle, how a plate heat. This type of heat exchanger, also referred to as a surface heat exchanger, can be further classi. Flow principle of an m3,m6, m10 and m15 plate heat exchanger. The role of engineering designers is to convert the user needs into the heat exchanger outputs.
Turbulent flow help to reduce deposits which heat transfer, no extra space is required for dismantling in plate heat exchangers. Jul 01, 2018 this type of heat exchanger is used in the gas turbine power plants. Plate and fin type heat exchanger is constructed similar to a plate type exchanger but also contains fins to increase the efficiency of the system. These problems vary depending on the type of plate being used but are most often indicated by protruding gaskets which will extrude between plates and be visible on the perimeter of the plate pack. The piston will travel forward and rotate the pitch wheel to tighten the nut.
However, plate heat exchangers which can operate at pressures up to 25 bar are available. Johnson, eric, plate and frame heat exchanger 2015. A plate heat exchanger, phe, is a compact heat exchanger where thin corrugated plates some 0. The corrugation of the plates provides the passage between the plates, supports each plate against the adjacent one and enhances the turbulence, resulting in efficient heat transfer. We also offer processoptimised model ranges, unique in their variety and diverse specialist functions. Tubular plate type extended surface regenerative phe spiral plate coil printed circuit. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. Correcting flaws in construction and piping that may have a detrimental effect on heat transfer. Introduction a heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. Thank you for purchasing the hisaka plate heat exchanger. Therefore a plate type heat exchanger, as compared to a similarly sized tube and shell heat exchanger, is capable of transferring much more heat. The plate pack is assembled between a frame plate and a pressure plate, and compressed by tightening bolts fitted between these plates. Plate heat exchanger theory phe structure and functional.
The plates are specially selected from various patterns so as to achieve optimum heat transfer area and cost effective heat exchanger type for each requirement. Preassemble the heat exchanger and after placing the tightening units on the diagonal nuts, apply oil pressure. In this new scenario, the plate heat exchanger can play an important role. Using plate type heat exchangers as our core technology, hisaka works provides thermal solutions to our customers all over the world. High value for overall heat transfer coefficient, for the same two fluids, a flat plate heat exchanger typically has a u value much higher than either a shell and tube heat exchanger or a spiral heat exchanger. Brazed plate heat exchanger copper braze single plate heat transfer area, m2 number of plate design pressure, mpa plate type h distributor plate type having high coeffi cient and high resistance, suitable for situations where fl ow rate is small and heat transfer is intensifi ed specifi c heat is high. The flow can be cross flow or counter flow as per our requirements. Platefin, tubefin, and rotary regenerators are examples of compact heat exchangers for gas flow on one or both fluid sides, and gasketed, welded, brazed plate. Unit operations lab heat exchanger 11 heat exchanger heat exchange is an important unit operation that contributes to efficiency and safety of many processes. As the worlds leading manufacturer and developer of plate heat exchanger technology we. The plates are either smooth or have some form of corrugation, and they are either. Herringbone chevron pattern is ideally suited for handling aqueous solutions. Manuals for the hisaka plate heat exchanger consist of the following seven related documents. User needs of heat exchanger include types of fluids, quality of fluids fouled fluids, clean fluids,etc.
The engineer may have little knowledge of the attributes of these other types so is not able to make a reasonable. Apr 20, 2017 in this video, we use a 3d model to explain how the plate heat exchanger works and why it is so efficient. In most cases the plate type is the most efficient heat exchanger. Due to the high heat transfer efficiency of the plates, plate type heat exchangers are usually very small when compared. Plate heat exchanger working principle, how a plate. The plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts. Heat exchangers doehdbk1018193 types of heat exchangers. For use with aggressive media, nickel braze can also be used. Plate heat exchangers were first produced in the 1920s and have since been widely used in a great number of sectors. Hfm manufactures and supplies high quality plate heat exchanger spares, phe rubber gaskets and metal plates. Plate heat exchangers are used to transfer heat between two media, which are separated from each other by corrugated plates. Our gasketed plate heat exchanger range is the result of decades of experience, research and development in heat transfer technology. Exchangers, both bare and packaged as opposed to other methods of. 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.
Types of heat exchangers shell and tube, plate type. This pdf presentation is designed to highlight the features and benefits of plate heat. Note that the term recuperator is not commonly used in the process industry for shell. A plate type heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. The units have a flexible design and are easy to service and maintain. Superchanger plate corrugations are available in four patterns. Gea phe systems tailormade plate heat exchanger solutions. Also referred to as plate type heat exchangers, plate heat exchangers are constructed of several thin, corrugated plates bundled together. 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 spread out over the plates. Fluids are a subset of the phases of matter and include liquidsgasesplasmas andto some extentplastic solids. By combining innovative design with high quality we guarantee maximum performance with minimum operating costs. Plate heat exchangers, heat exchanger, air cooled heat.
Although the majority of heat exchangers used on chemical plant are shell and tube units, there are many other types available. Generally, these exchangers cannot accommodate very high pressures, 22 classification of heat exchangers. As the worlds leading manufacturer and developer of plate heat exchanger technology we can offer one of the widest ranges on the market. Plate type heat exchanger advantages and disadvantages. Using plate type heat exchangers as our core technology, we provide thermal solutions to our customers all over the world. Pdf design and analysis of a plate heat exchanger in the view of. Plate and frame heat exchangers 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 used on ship marine insight. Alfa laval gasketed plate heat exchangers are the most costeffective solution. The hot and cold fluids alternate between each of the plates. Advances in gasket and brazing technology have made the plate type heat exchanger increasingly practical. Depending on the applications, the gf, ux, sx, gc and gx series plates are used to achieve maximum heat transfer. Figure 4 heat transfer in a double pipe heat exchanger.
Triangle tube brazed plate heat exchangers consist of as many as 150 patternembossed stainless steel plates. 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. 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. There are many types of heat exchangers applied in the process industry. A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids. Gasketed plate andframe heat exchangers provide efficient heat transfer in compact equipment with a small footprint. Heat exchanger and its types engineering solutions. Classification according to design or type tubular plate type extended surface regenerative phe spiral plate coil printed circuit gasketed welded brazed doublepipe shellandtube spiral tube pipe coils crossflow to tubes parallel flow to tubes plate fin tubefin ordinary separating wall heat pipe wall rotary fixedmatrix rotating hoods. These exchangers are composed of many thin, slightly separated plates that have very large surface areas and small fluid flow passages for heat transfer. The heat transfer plates are made in stainless steel and are brazed with copper as standard. Plate heat exchangers, heat exchanger, air cooled heat exchangers.
Hfm supplies plate heat exchanger, plate and frame heat exchanger, brazed plate heat exchanger, welded plate heat exchanger and other types of heat exchanger for various applications and industries. Plate type heat exchanger working principle a plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat. Plate type heat exchanger advantages and disadvantages advantages of plate type heat exchanger is a simple and compact in size. A plateandframe heat exchanger figure 1 consists of pressed, corrugated metal plates. Our product ranges include gasketed, brazed and fully welded plate heat exchangers. The optimised plate structure of the concitherm series makes it possible to. Another type of heat exchanger is the plate heat exchanger. The plates are fitted with a gasket which seals the interplate. In a gasketed plate heat exchanger, the plates are fitted with elastomeric gaskets which seal the channels and direct the media into alternate channels. Indirect heat exchangers are available in several main types plate, shelland tube, spiral etc. Aluminium alloy is used as it gives higher heat transfer efficiency and lowers the weight of the unit. We provide plate heat exchangers from spx apv in a large variety of sizes, models and types. Operating a plate heat exchanger above its design pressure will result in gasket sealing problems.
The heat exchanger consists of a pack of corrugated metal plates with portholes for the input and output of the two separate fluids. In the directcontact type, heat transfer takes place between two. 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. With a plate type heat exchanger, the heat penetrates the surface, which. Bowman inline plate heat exchangers are a compact, economical way to achieve high efficiency heat transfer for a range of applications including heating and cooling systems and specialist equipment where installation space is limited, or where primary and secondary flow rates are limited and inline pipework is beneficial. Plate heat exchangers a plate heat exchanger, phe, is a compact heat exchanger where thin corrugated plates some 0. This includes knowledge of precautions regarding media type, pressures, temperatures in the heat exchanger as well as specific precautions required by the process. 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. Figure 1 consists of pressed, corrugat ed metal plates fitted between a thick, carbonsteel frame. Hisaka continues to supply reliable plate heat exchangers. There are 16 hole combinations possible depending on the application and temperature approach. Plate type heat exchanger working principle, working.