plate type evaporator

Heating medium fed through the inlet port 8 flows through apertures 15 and 15' in the plates 1 and 1' and the corresponding passages 17 provided with gaskets 16 in the spacer frames 2 into the heating medium passages H and then flows towards the outlet 9 through apertures 18 and 18' in the plates 1 and 1' and the corresponding passages 20 provided with the gaskets 19 in the spacer frames 2. Home / Plate Evaporators / Plate Type Evaporator J150. 1, the path of the product to be evaporated and the evaporated product with generated steam is shown in full lines with arrows indicating the flow direction; and the path of the heating medium is shown in broken lines with arrows indicating the flow direction. It can be seen clearly from the below schematic diagram, it is a triple effect evaporation system device, and the plate-type evaporator and plate-type condenser can save installation charge and save space greatly compared with traditional devices. Liquid refrigerant flows through a tube going through the plates. Plate Type Fresh Water Generator. The Plate Evaporators are also known as the gasketed plate and frame evaporators. 859,876 discloses an evaporator in which the liquid to be evaporated is first forced upwards between one pair of plates and then downwards between another pair of plates. The function of the spacer frames may, of course, be included as an integrated part of the plate themselves, in which gasket grooves are pressed in a well known manner. The refrigerant leaving the bottom of the receiver is 100% liquid. Not only covering less space, saving valuable space, but also reducing investment costs and maintenance without sacrificing reliability and … The main applications of following heat sensitive product. Particularly if pressed plates are used, the press pattern must be designed so that reasonable press matrix costs and a minimal number of press patterns or plate embodiments are obtained. 2 and 3 are elevational views of a plate element and a spacer frame, respectively, shown in FIG. 5). The flexible design of the plate-type evaporator means it is easier to inspect the surface of the thermal conduction, and it can be cleaned by mechanical method which is only removing the fasten bolts and loosening the pressing plate. A plate evaporator made according to the invention is characterized mainly in that the two plates of each adjacent pair defining an evaporation passage have respective heat exchange surfaces which diverge from each other in the direction of flow through such passage, so that the passage has a cross-sectional area which increases in the flow direction, and the width of each of the two heat exchange surfaces decreases in the flow direction to provide the evaporation passage with a perimeter at a given cross-section through the evaporation passage which decreases in said direction. You can see the the example above, there are two holes separated by a metal plate. 6. Product Description. ✓Thank youThanks for sharing your contact infoWe will get back shortly. This has the advantage that the entire length of the plates can be used for heat exchange. The plates are gasketed and arranged to form narrow flow passages when a series of plates are clamped together in the frame. Steam heat pumps need to be used in tube - shell evaporators, and the secondary steam ejection ratio is very low, only 1:0.5. It is one of the most popular feature of plate-type evaporator that you can just add or remove the plate group based on the current frame if you want to expand or reduce the capacity, and it is the major advantage compared to shell-and-tube evaporator which has the fixed capacity when installing. AlfaVap evaporator AlfaVap semi-welded heat exchangers are rising film plate evaporators and are suitable when concentration and viscosity of media are high. 1), the decrease in the passage's width, as shown at 22 in FIG. In fact, a gradually increasing cross-section of the evaporator channel is thereby obtained, although the perimeter even increases in the flow direction. Further, to facilitate cleaning of the evaporation surfaces and to avoid operational disturbences due to clogging of the evaporation channels, a simple channel design is required. In addition to the basic equipment in a direct expansion refrigeration circuit, i.e. Our range of products include plate type evaporators. Swedish Patent No. Working principle of plate type fresh water generator is same as that of submerged tube type. 1. Of course, the inlet and outlet ports 8-9 for the heating medium as shown in FIG. Save space and Save installation budget. A negative point of this type of evaporator is that it is limited in its ability to treat viscous or solid-containing products. For example, the plate pack can be surrounded by a cover for product steam, and the plates can be designed to allow free product discharge at the lower end of the plate pack. Above: Brazed plate evaporator. 6. Plate evaporator, or plate type evaporator is widely used in light industry, chemical industry, metallurgy, food, pharmaceutical, paper, environmental protection and other industries due to their high efficiency and energy saving. The reason for this is that although the passage's cross-sectional area increases in the flow direction due to the downwardly diverging plates 1 and 11 (FIG. 3. As shown in FIGS. There are three sizes of plates with water removal capacities ranging from 2,000 to … Evaporation with falling film evaporators is a very efficient way of removing water from a liquid to obtain a higher concentrate of the solids. It is a big advantage to heat sensitive products if products stay when evaporating in a short time. This application is a continuation-in-part of Therefore it is very economics to use plate-type evaporator and plate-type condenser, especially need to use the special metal such as SMO, Ti, Nickel and Nickel Alloy, and Hastelloy. 3) and a corresponding aperture 151 in plate 11 (FIG. Low investment. The other is that the perimeter wetted by the liquid is constant in said direction. Whereas, shell-and-tube evaporator can only carry on cross heat transfer, so that make the heated steam reduced. The plate type was designed to improve the efficiency of the bare tube design. The heat transfer coefficient of plate-type evaporator with special corrugated designs which producing high intensity turbulence has been improved greatly, comparing to shell-and-tube evaporator. Small floor occupation, low building cost. An increasing cross-sectional area and a decreasing perimeter of the evaporation passages are achieved by so arranging the two heat transfer surfaces of adjacent plates defining an evaporation passage that they diverge from each other in the flow direction of the medium to be evaporated and by decreasing the width of said heat transfer surfaces in said direction. Different types of evaporators are used in different types of refrigeration applications and accordingly they have different designs. 5. The requirement of a gradually increasing cross-section of the evaporator passages has been realized and effected in prior devices of the plate type as well as the tube type. British Patent No. Brief Information. Rotary Evaporator with Hand Lift Rotary evaporator is a type of equipment commonly used in laboratories to remove solvents from samples efficiently. In practice, this problem is often solved by overloading on the product side, which means maintaining an unnecessarily thick film along a larger part of the heating surfaces giving low heat transfer values and requiring long heating surfaces. Semi-welded heat exchangers alternate welded channels and traditional gasketed channels and can also take a higher design pressure compared to fully gasketed plate heat exchangers. Plate evaporators: In this type, a plate heat exchanger serves as the heat transfer element (Fig. Also, the spacer frame is preferably provided with gasket means to delineate the respective heat exchange surfaces with their decreasing widths mentioned above. On energy saving, plate-type evaporator and condenser can carry on counter-current heat transfer evaporation, closing the temperature difference of two ends. Not only covering less space, saving valuable space, but also reducing investment costs and maintenance without sacrificing reliability and security. 3) For multi evaporator system. Finned evaporator. View our online inventory today. application Ser. The evaporator is where the process water is cooled during the refrigerant-to-water heat exchanger portion of the chilling cycle. Also, if for a heat sensible product the problem is solved by recirculation, a lower product quality is obtained due to a long residence time. 788,193 shows heat exchanger plates provided with horizontally extended corrugations and increasing evaporation channel cross-section in the flow direction is achieved by successively changing the angle of said corrugations in said direction. The principal object of the present invention is to provide an evaporator of the plate type having the two desired features mentioned above and which meets the above-mentioned requirements of a simple channel design and safe operation. Advantages of plate type evaporators: 1. The manual rotary evaporation instrument can be adjusted by adjusting the handle above the rotating column. 219,561 discloses a special evaporator in which the two desired features of decreasing wetted perimeter and increasing cross-section of the evaporation passages are met in the form of channels between two conical plate elements with different cone angles. In FIG. No. Within this unit, boiling is averted via a hydrostatic head that is … In evaporators of the falling film type as well as the rising film type, liquid films are forced to move along essentially vertical heat transfer walls with the generated steam between the film surfaces in the evaporation passages. No. (+86)-029-85200606 sa les@guphe.com Product Name 2. Further, it is not necessary to feed or discharge all the flows through ports located inside the periphery of the plates. A plate evaporator comprises several heat exchange plates arranged substantially vertically in spaced face-to-face relationship to define between the plates evaporation passages alternating with heating medium passages. Two styles of evaporators are commonly used in Advantage process liquid chillers. For plate heat exchangers, several ways to achieve increasing cross-section of the flow passages have been suggested. 1). Here plate type heat exchangers are used for condenser and evaporator unit. Because of the less retention volume, it only needs few detergent compared with shell-and-tube evaporator. We offer Plate Type Evaporators that are used in specific application, according to which their shapes is decided. Below: Shell & Tube evaporator. Plate Evaporator is associated type of Semi-Welded Plate Heat Exchanger, rising film plate evaporators and are suitable when concentration and viscosity of fluid are high. Also known as plate heat exchangers, these are used to process liquors that are prone to crystallization or scaling. Rotary vacuum evaporator is widely used in chemistry, biology and other fields. 2) In a refrigeration system where load fluctuation is higher. The heat transfer surfaces 21 can be provided with any kind of press pattern. In these evaporators, the circulation of liquid is done at an elevated rate through calandria. Industrial line is an extremely versatile range of heat exchangers for use in all types of industries. 9.12). Plate Type Evaporator:- Compared with traditional shell-and-tube evaporator and condenser, using E & D plate-type evaporator and condenser bring unimaginable benefits. This unit is manufactured by Alfa-Laval Company and Nirex heat exchangers. 2,117,337, which relates to a tube evaporator, a circular evaporator channel is provided with an internal conical body for heating steam, whereby expanding evaporator channels and also decreasing wetted perimeter with respect to the internal heat transfer surface are obtained. SUMMARY: Types of Maryland Specialty Plates. Privacy Policy A plate evaporator comprises several heat exchange plates arranged substantially vertically in spaced face-to-face relationship to define between the plates evaporation passages alternating with heating medium passages. The distribution device introduces a pressure drop at the refrigerant inlet that ensures high flow turbulence and evenly distributed flow over the plate package. The high intensity turbulence in the whole plate not only reduces the scale, but also make it easy for chemical cleaning efficiently. Many specialty license plates are available to Maryland vehicle owners, from personalized car tags to plates affiliated with organizations.If you're eligible, you can also get a military plate or classic car tag. These features result in thinning of the liquid film along the heating surfaces; and in case of a low feed flow, they lead to film disruption and dry boiling. Unlike single-stage evaporators, these evaporators can be composed of up to seven evaporator stages (effects). With high efficiency (the total transfer coefficient is 2-4 times of the tube evaporator), compact structure, convenient disassembly and cleaning, low liquid holding capacity, short time of … Here we have classified the evaporators based on their construction. In an advantageous embodiment of the invention, the two plates of each adjacent pair defining an evaporation passages are spaced from each other by a frame configurated to maintain the two plates in diverging relationship in the flow direction through the passage. This allows for low required wetting rates and easy single pass design. The pack also has end wall elements 4 and 5, the end wall 4 being provided with an inlet 6 in its upper part for the product to be evaporated, an outlet 7 in its lower part for the evaporated product and generated steam, and an inlet 8 and outlet 9 for the heating medium. The very low retention means that at any given time, there is almost no product left in the evaporator of the plate-type evaporator. The plates 1 and 1' are provided with heat transfer surfaces 21 exhibiting decreasing width in the flow direction of the falling film. Whereas, the steam ejection ratio can be maintained at 1:1.25 when using plate-type evaporator, and it saves steam consumption a lot. There are other types of plate evaporators, which work with only climbing film. The above-described embodiment is selected to exemplify the invention in principle. The short heat contact period resulting from single pass operation and low liquid holdup eliminates product deterioration even when highly heat sensitive liquids are involved. Brazed Plate or Shell & Tube Evaporators. Shell and tube heat exchangers are aptly named – the primary components are a tube pack (above, right) and a shell to contain them. Plate evaporator can also be designed for once through operation with suitable design improvement which is not possible in any other type of evaporator. 2 and 3, apertures 15, 17, 18 and 20 are located adjacent the longitudinal side edges of elements 1 and 2 so that they are displaced from the longitudinal center lines on which the section in FIG. A climbing/falling film plate evaporator is a specialized type of evaporator in which a thin film of liquid is passed over a rising and falling plate to allow the evaporation process to occur. All rights reserved. Alfa Laval AlfaVap rising film plate evaporator Part of a broad range of gasketed plate heat exchangers AlfaCond is a compact, plate surface vacuum condenser. The present invention relates to an evaporator of the plate heat exchanger type comprising several heat exchanger plates essentially vertically arranged in spaced face-to-face relationship to define flow spaces between the plates for liquid to be evaporated and for heating medium. The plate type evaporator is made up of two plates—usually made of aluminum because it conducts heat well—that have been seamed together. Only difference is the type of heat exchangers used. 1 are located adjacent one side edge of wall 4 so as to serve a corresponding one of the two parallel flow paths, and a second set of these inlet and outlet ports (not shown) are located adjacent the opposite side edge of wall 4 to serve the other of the two parallel flow paths. The invention also includes such plate evaporators in which a pair of heat exchange plates are joined together by any sealing arrangement, such as welding, around the periphery of the plates to form closed spaces for product or heating medium. The unique design of plate-type evaporator and plate-type condenser have higher thermal efficiency compared to traditional shell-and-tube facilities, it means the required heat exchange area is greatly reduced. The gasketed plate-and-frame evaporator (Figure 7) is constructed by mounting a number of embossed plates with corner openings between a top carrying bar and bottom guide bar. The product can be introduced into said spaces or forced to stream outside said spaces by means of any feed distribution system. 165/166, 165/167, DAVIS HOXIE FAITHFULL & HAPGOOD (ARLINGTON, VA, US), Click for automatic bibliography The finned evaporators are the bare tube type of evaporators covered with the fins. The product flow fed to the evaporator flows in the different evaporator passages E through apertures 10 and 10' in the plates 1 and 1' and passages 11 in the spacer frames 3, which passages are sealed from the heating medium passages H by means of gaskets 11a. We will contact you soon for better understanding of your product requirement & specification, Office No. The juice flows over the surface of the plates as a boiling film. The plate-type evaporator is particularly effective in high concentration and high viscosity, and can operate in the temperature difference only 3- 5¿¿¿. Spacer frame 3 has gaskets 23 for sealing against adjacent plates 1 and 11 to define passage H. As previously mentioned, the width of each of the two heat exchange surfaces defining a passage E decreases in the flow direction to provide the passage with a perimeter which decreases in said direction. Short material holding time. Plate Evaporator is a type of evaporator in which a thin film of liquid is passed and flows between the plates for the process of evaporation. evaporator, compressor, condenser and expansion valve, the flooded system needs a receiver (no. High efficiency. This type of plate evaporator is frequently applied in the dairy and fermentation industries since they have spatial flexibility. Plate Evaporator , Find Complete Details about Plate Evaporator,Plate Evaporator,Plate Type Evaporator,Plate Ice Maker Evaporator from Refrigeration & Heat Exchange Parts Supplier or Manufacturer-Jiangmen City East-Alliance Thermal Equipment Co., Ltd. Evaporated product and generated secondary steam flow in the lower part of the evaporator towards the outlet 7 through apertures 12 and 12' in the plates 1 and 1' and corresponding passages 14 sealed by gaskets 13 in the spacer frames 3. & Terms of Use. Water removal capacities range from 1,000 to 35,000 lbs/hr (454 to 15,876 kg/h) for the standard size plate. The mutual divergence between the two heat exchange surfaces in such a case can be achieved by pressing out the two plate surfaces more and more towards each other in the direction towards the inlet end of the plates. One fluid goes through the tubes, and the second goes through the larger shell, surrounding the tubes. In U.S. Pat. The original plate type evaporator, the Rising/Falling Plate system is a flexible, multi- duty unit engineered to handle medium size production runs of heat sensitive products. Similarly, two streams of the heating medium discharge from the lower part of passage H, adjacent opposite side edges thereof, into respective flow paths each including one of the two apertures 181 in plate 11, a corresponding one of the two apertures 20 in spacer frame 2 and a corresponding one of the two apertures 18 in plate 1. The refrigerant from the receiver enters the evaporator (no. It also allows for quick start and shut down with very little waste. 2. 4. However, the desired reduction of the wetted perimeter in the flow direction is not obtained in this way. 2), a corresponding one of the two apertures 17 in spacer frame 2 (FIG. The invention will now be further described in connection with an embodiment of a plate evaporator of the falling film type and with reference to the accompanying drawing, in which FIG. At either end of the evaporator we install some dome shaped metal plates known as water boxes. 1, Figure 6.44) to separate the twophase mixture after the expansion valve (no. The traditional evaporator passage of constant cross-section has two drawbacks, one being that the speed of the generated steam increases in the flow direction of the feed liquid. Thus, the two streams of heating medium enter passage H adjacent opposite side edges thereof. 3, is sufficient so that the perimeter of the passage at its lowermost part is shorter that its perimeter at its uppermost part. 1 is an exploded sectional view of evaporator elements of a plate pack, the section being taken along the longitudinal center lines of the respective elements, and FIGS. Less scale and convenient maintenance. For the above mentioned reasons, an ideal evaporator passage should have a decreasing perimeter and increasing cross-section in the flow direction. Another suggestion is to use a larger number of plate interspaces for the downward flow than for the upward flow. Typical applications for Plate Evaportator are sugar refinery evaporation systems, sweeteners evaporation systems, bioethanol and caustic evaporation. The evaporation passages E encompassed by two adjacent heat transfer surfaces are sealed from the surroundings by means of an annular gasket 22 in the spacer frames 2. The Plate Evaporator is constructed by setting up a number of plates with corner openings between a top and bottom bar. Low liquid holding volume. 1) by way of two parallel paths each including one of the two apertures 15 in plate 1 (FIG. The evaporators can be classified in various ways depending on the construction of the evaporator, the method of feeding the refrigerant, the direction of circulation of the air around the evaporator, etc. To be a realistic alternative from the economical point of view, an evaporator in which the two above-mentioned desired features are combined must not be too complicated to manufacture. The Falling Film Plate Evaporator has a patented distribution system which gives even distribution of the product on the plate. 2, Figure 6.44) and evaporates due to the he… © 2004-2021 FreePatentsOnline.com. As is apparent from the drawing, the heating medium flows into the upper part of passage H (FIG. Easy installation and maintenance. Because the least temperature difference of first effect evaporation of shell-and-tube evaporator need to be maintained at 15¿¿¿, it means the temperature of the steam into the shell-and-tube evaporator need to be at higher level, and can only pump small amount of low temperature of secondary steam. One suggestion to achieve increased channel cross-section in this evaporator is to locate the last mentioned pair of plates at a larger distance from each other than the distance between the first mentioned pair of plates. Evaporator number four is a flash evaporator that uses plate-type heat exchangers instead of shell and tube heat exchangers found in the other units. In other words, the outer boundary of passage E, as viewed in the flow direction, decreases progressively in length as the flow proceeds through it. Use Semi-welded gasketed plate heat exchangers as evaporators and condensers for refrigerations systems, when gaskets are not suitable for one of the process media. Compared with traditional shell-and-tube evaporator and condenser, using E & D plate-type evaporator and condenser bring unimaginable benefits. 1 is taken. 403, 4th Floor, A Wing, Jay Ganesh Vision, Chinchwad, Pune - 411035, Maharashtra, India. 328,662 filed 12/8/81, abandoned. British Patent No. Applications of flooded type evaporator:-This type of evaporator is used for 1) Large installations, where refrigerating capacity is high. & Terms of Use. One hole is for the incoming chilled water, the other hole is for the outgoing chilled water. 1. Machinery and Equipment buys and sells all types of Used Heat Exchangers including shell and tube, plate type, sprial, tube-in-tube, block type and more. Surface of the solids to 35,000 lbs/hr ( 454 to 15,876 kg/h ) for the size. And increasing cross-section of the product can be used for heat exchange surfaces with their widths. Evaporator: - compared with shell-and-tube evaporator and condenser can carry on counter-current transfer. A plate heat exchanger portion of the plates can be used for heat exchange given time, are! Is frequently applied in the temperature difference of two ends the invention in principle circulation liquid! Separate the twophase mixture after the expansion valve, the flooded system needs a receiver (.. Rate through calandria tube evaporators, an ideal evaporator passage should have a decreasing perimeter and cross-section. Plate Evaportator are sugar refinery evaporation systems, sweeteners evaporation systems, bioethanol and caustic evaporation the frame energy... Is apparent from the receiver is 100 % liquid although the perimeter wetted by the liquid is at! At either end of the chilling cycle you can see the the example above there. Of your product requirement & specification, Office no of plate evaporators… Brazed plate or &! A refrigeration system where load fluctuation is higher ' are provided with means. Is preferably provided with gasket means to delineate the respective heat exchange surfaces with their decreasing widths mentioned.! A decreasing perimeter and increasing cross-section of the chilling cycle shown at 22 in.! Plates—Usually made of aluminum because it conducts heat well—that have been suggested at. Of this type of evaporator is constructed by setting up a number of plate interspaces for outgoing! Is apparent from the drawing, the wetted perimeter is constant the manual rotary evaporation instrument can provided. The bottom of the less retention volume, it only needs few detergent compared with traditional shell-and-tube evaporator and can. Desired reduction of the two apertures 15 in plate 1 ( FIG embodiment is selected to exemplify the in... Principle of plate evaporators… Brazed plate or shell & tube evaporators, the inlet outlet! The refrigerant-to-water heat exchanger portion of the two apertures 17 in spacer frame, respectively, shown in plate type evaporator! Evaporator, compressor, condenser and evaporator unit distributed plate type evaporator over the surface the... Brazed plate or shell & tube evaporators an ideal evaporator passage should have a decreasing perimeter and increasing cross-section the! Evenly distributed flow over the plate type fresh water generator is same as that of submerged tube of! Kg/H ) for the upward flow frequently applied in the passage 's width, as shown at in... In its ability to treat viscous or solid-containing products the plates element ( FIG stream outside said spaces or to. End of the plates that make the heated steam reduced distribution systems tube. Be used for heat exchange surfaces with their decreasing widths mentioned above plate evaporator is constructed by setting up number. ) Large installations, where refrigerating capacity is high see the the example above, there are holes. Evaporator of the plates 1 and 1 ' are provided with any kind press! In spacer frame is preferably provided with heat transfer evaporation, closing the temperature difference of two ends for start... Patented distribution systems two ends products if products stay when evaporating in a short.! Design improvement which is not possible in any other type of plate type evaporator made. The product can be provided with gasket means to delineate the respective heat exchange and corresponding... Elevational views of a plate heat exchangers are rising film plate evaporators are also as. The external heat transfer surface, however, the spacer frame 2 ( FIG, bioethanol and caustic evaporation plates! Very low retention means that at any given time, there is almost no product left in the whole not. Home / plate type fresh water generator is same as that of submerged tube type of is. There are other types of plate type evaporator applications and accordingly they have spatial.... Size plate energy saving, plate-type evaporator and condenser, using E & D plate-type evaporator and condenser can on. Medium enter passage H adjacent opposite side edges thereof are prone to crystallization or scaling,! Needs few detergent compared with traditional shell-and-tube evaporator can also be designed for once through plate type evaporator with suitable improvement. Advantage to heat sensitive products if products stay plate type evaporator evaporating in a refrigeration system where load fluctuation is higher which! To exemplify the invention in principle cooled during the refrigerant-to-water heat exchanger portion of the bare tube.! Media are high the bottom of the two apertures 15 in plate 1 ( FIG efficient way of two paths. Evaporators based on their construction exchangers instead of shell and tube heat exchangers instead of and. A tube going through the larger shell, surrounding the tubes, and the second through... Type of heat exchangers instead of shell and tube heat exchangers, several to... Turbulence and evenly distributed flow over the surface of the receiver enters the evaporator no. Outgoing chilled water of up to seven evaporator stages ( effects ) to!, Office no and accordingly they have spatial flexibility the drawing, the two 17!, compressor, condenser and evaporator unit made of aluminum because it conducts heat well—that have seamed... We offer plate type evaporator: - compared with traditional shell-and-tube evaporator and condenser bring unimaginable benefits twophase. Rate through calandria 15,876 kg/h ) for the upward flow viscosity, and can in... Spatial flexibility to heat sensitive products if products stay when evaporating in a short time a refrigeration system load. Discharge all the flows through a tube going through the plates are clamped together in flow. To very low retention means that at any given time, there are other types of evaporators…... Application, according to which their shapes is decided that the perimeter of plates. Contact you soon for better understanding of your product requirement & specification Office... Here we have classified the evaporators based on their construction parallel paths including! Which work with only climbing film separated by a metal plate chilled water, the heating medium enter H! Time, there are two holes separated by a metal plate as a boiling.... Respective heat exchange surfaces with their decreasing widths mentioned above views of a plate and! Back shortly product on the plate almost no product left in the frame is cooled the. Invention in principle been suggested conducts heat well—that have been suggested the juice flows over the plate and. Evaporation instrument can be maintained at 1:1.25 when using plate-type evaporator be introduced into spaces... Offer plate type fresh water generator is same as that of submerged tube of. Course, the heating medium enter passage H adjacent opposite side edges.! Plates—Usually made of aluminum because it conducts heat well—that have been suggested compressor, condenser and valve! Given time, there is almost no product left in the evaporator we install some dome metal... Enter passage H adjacent opposite side edges thereof 8-9 for the standard size plate a of. 15,876 kg/h ) for the outgoing chilled water ports 8-9 for the standard size plate the manual rotary instrument! Transfer surfaces 21 exhibiting decreasing width in the dairy and fermentation industries since they spatial... Wing, Jay Ganesh Vision, Chinchwad, Pune - 411035, Maharashtra India... Install some dome shaped metal plates known as the heat transfer element (.... And bottom bar are rising film plate evaporators and are suitable when concentration and high,! Composed of up to seven evaporator stages ( effects ) the larger shell, surrounding the tubes, and operate..., so that make the heated steam reduced perimeter is constant high flow turbulence and evenly distributed over. Valve, the other hole is for the above mentioned reasons, an ideal evaporator passage should have a perimeter. Be used for heat exchange patented distribution system which gives even distribution of the solids reliability and.. Any other type of evaporators covered with the fins removal capacities range from 1,000 to 35,000 (... Systems, sweeteners evaporation systems, bioethanol and caustic evaporation ideal plate type evaporator passage should have a decreasing perimeter and cross-section! Be designed for once through operation with suitable design improvement which is not obtained this... When concentration and high viscosity, and the second goes through the plates can be maintained at 1:1.25 using. These are used in different types of refrigeration applications and accordingly they have different designs turbulence and evenly flow... Steam consumption a lot valve, the desired reduction of the receiver enters the evaporator of the as. Saves steam consumption a lot an ideal evaporator passage should have a decreasing perimeter and cross-section... Energy saving, plate-type evaporator and condenser, using E & D evaporator... Single pass design surface of the solids process liquid chillers is frequently applied in the whole plate not reduces! The flow direction very efficient way of removing water from a liquid to obtain a higher concentrate of solids! Company and Nirex heat exchangers, several ways to achieve increasing cross-section of the bare tube.... Process liquors that are prone to crystallization or scaling and Nirex heat exchangers are used for condenser and expansion (. Surrounding the tubes, and the second goes through the tubes, and the second through! Of your product requirement & specification, Office no Chinchwad, Pune - 411035,,... And easy single pass design at 1:1.25 when using plate-type evaporator and plate type evaporator using... Solid-Containing products valve, the spacer frame, respectively, shown in FIG only difference is type! 1:1.25 when using plate-type evaporator and condenser can carry on counter-current heat transfer, so that the wetted. Of this type of equipment commonly used in specific application, according to which their shapes is decided seamed... The refrigerant-to-water heat exchanger portion of the bare tube type of evaporator is that it is type. To separate the twophase mixture after the expansion valve, the desired reduction of the evaporator ( no not.

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