EP4090902A1 - Déflecteur seg-lok pour échangeur de chaleur - Google Patents
Déflecteur seg-lok pour échangeur de chaleurInfo
- Publication number
- EP4090902A1 EP4090902A1 EP21700456.3A EP21700456A EP4090902A1 EP 4090902 A1 EP4090902 A1 EP 4090902A1 EP 21700456 A EP21700456 A EP 21700456A EP 4090902 A1 EP4090902 A1 EP 4090902A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- baffle
- barrier region
- region
- baffles
- tubes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 102
- 239000012530 fluid Substances 0.000 abstract description 43
- 238000013517 stratification Methods 0.000 abstract description 12
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 11
- 238000007665 sagging Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/226—Transversal partitions
Definitions
- the present invention relates to a baffle for a heat exchanger, and more particularly to a system of baffles for a heat exchanger, including shell-and-tube or hairpin (multitube) type heat exchangers, wherein the system of baffles comprises at least one permeable tube support region and at least one barrier region.
- Heat exchangers including shell-and-tube and hairpin (multitube) type heat exchangers, are used in a wide variety of applications to create heat exchange between streams of various fluids.
- Such heat exchangers generally include a combination, or bundle, of tubes housed within a cylindrically shaped shell.
- a first fluid commonly referred to as the “tube- side fluid”
- a second fluid commonly referred to as the “shell-side fluid”
- the shell-side fluid is directed within the shell and into any void around the tubes comprising the tube bundle, wherein the tube wall of each tube can permit heat exchange between the tube-side fluid stream flowing within the tubes and the shell-side fluid stream flowing around the tubes.
- the tube bundle of a tubular heat exchanger includes a plurality of separate, self-contained individual tubes that extend in parallel to each other, wherein one or both of the ends of each respective tube is fixed to a header plate or a plurality of header plates, which are known as tube sheets.
- a header plate or a plurality of header plates which are known as tube sheets.
- tubular heat exchangers including shell-and-tube or hairpin (multitube) type heat exchangers, are subject to sagging and vibrations, both of which can negatively affect the heat exchanger and its components.
- baffles can be effective in supporting the tubes and maintaining the desired position and spacing of the same within the shell, one drawback is that they can generally impede the flow of the shell-side fluid, such that the shell- side fluid is generally prevented from flowing along the tubes. In this way, such baffles generally inhibit the flow of the shell-side fluid along the length of the tubes.
- Baffle positioning and spacing can also pose a difficult design challenge and create an impediment to efficient and optimal heat exchanger operation.
- the limited space between the baffles can adversely affect the heat exchanger by reducing the flow area for the shell- side fluid, which can result in excessive shell-side pressure drop.
- Embodiments, presented herein are directed generally to a baffle system that can comprise a plurality of baffles and a plurality of tubes received and supported by the plurality of baffles, wherein the plurality of baffles can be concentrically aligned and define a first permeable support region and a first barrier region.
- the baffle system of the present invention can generally comprise a first baffle defining the first permeable support region and the first barrier region.
- the baffle system of the present invention can generally comprise at least two baffles, wherein the first baffle can define the first permeable support region and the first barrier region, and the second baffle can define a second permeable support region.
- the second permeable support region can be in axial alignment with the first barrier region.
- the second baffle can define a second barrier region, and the first permeable support region can be in axial alignment with the second permeable support region.
- the first barrier region can be in axial alignment with the second barrier region.
- the first baffle can be axially displaced from the second baffle by a baffle spacing of approximately three (3) feet.
- a baffle system can comprise any number of baffles, including at least three baffles, wherein the first baffle can define the first permeable support region and the first barrier region, the second baffle can define a second permeable support region, and the third baffle can define a third permeable support region.
- the third permeable support region can be in axial alignment with the first barrier region. Further, the second permeable support region can be in axial alignment with the first barrier region.
- the third baffle can further define a third barrier region, and the first permeable support region can be in axial alignment with the third permeable support region. Further, the first barrier region can be in axial alignment with the third barrier region.
- the second permeable support region can be in axial alignment with the third permeable support region. Even further yet, the second permeable support region can be in axial alignment with the third barrier region.
- the second baffle can further define a second barrier region, and the second barrier region can be in axial alignment with the third barrier region.
- the first baffle can be axially displaced from the third baffle by a baffle spacing of approximately three (3) feet.
- Embodiments set forth herein are also directed generally to a heat exchanging apparatus that can comprise at least one heat exchanger, a plurality of baffles disposed within the heat exchanger, and a plurality of tubes disposed within the heat exchanger, wherein the plurality of tubes can be received and supported by the plurality of baffles, the plurality of baffles can be concentrically aligned, and the plurality of baffles can define a first permeable support region and a first barrier region.
- FIG. 1 is a front view of a first exemplary baffle in accordance with embodiments presented herein;
- FIG. 2 is a front view of a second exemplary baffle in accordance with embodiments presented herein;
- FIG. 3 is a front view of a third exemplary baffle in accordance with embodiments presented herein;
- FIG. 4 is a front view of a forth exemplary baffle in accordance with embodiments presented herein;
- FIG. 5 is a front view of a fifth exemplary baffle in accordance with embodiments presented herein;
- FIG. 6 is a front view of a sixth exemplary baffle in accordance with embodiments presented herein;
- FIG. 7 is a side view of an exemplary baffle in accordance with embodiments presented herein;
- FIG. 8 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein;
- FIG. 9 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein;
- FIG. 10 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein;
- FIG. 11 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein;
- FIG. 12 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein;
- FIG. 13 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein.
- FIG. 14 is a perspective view of an exemplary baffle system in accordance with embodiments presented herein.
- Embodiments presented herein are generally directed to a baffle system and a heat-exchanging apparatus that can effectively support a tube or a tube bundle of a heat exchanger that avoids sagging and vibration, is capable of being used in connection with low shell-side pressure drop designs or applications, and avoids stratification of the shell-side fluid.
- a baffle 10 can define a profile with a generally circular shape.
- the profile of the baffle 10 can assume any other suitable geometrical shape, including, without limitation, a triangle, a square, a pentagon, a hexagon, and any similar symmetrical and non- symmetrical shapes or series of shapes.
- baffle 10 can define a diameter or width W, which can generally correspond with the diameter of a heat exchanger (not shown), and more particularly, the internal diameter of the heat exchanger shell.
- Baffle 10 may be of any suitable diameter or width W depending upon its desired application.
- the width W of the baffle 10 may be between about one (1) foot and about nine (9) feet in one embodiment, between about two (2) feet and about seven (7) feet in another embodiment, and about four (4) feet in a further embodiment.
- baffle 10 can receive and support a generally elongate tube 20 or series of generally elongate tubes 22 of a heat exchanger (not shown) for purposes of preventing sagging and vibration over the lengths of a specific tube 20 or series of tubes 22.
- the tube 20 or series of tubes 22 can pass through an interior section of baffle 10 and are generally axially aligned with the baffle 10.
- the tube 20 or series of tubes 22 may also extend in one or more multiple directions from the baffle 10.
- the tube 20 or series of tubes 22 may also be configured to extend perpendicularly from the profile of the baffle 10 in one or multiple directions.
- a preferred embodiment of the present invention can be used with varying arrangements of tubes 20 and series of tubes 22, including, for example, straight tube or shell arrangements, single or multi-pass arrangements, and/or designs implementing parallel (co-current) or counter-flow arrangements.
- FIG. 1 depicts a front- view illustration of a first exemplary baffle 10 according to exemplary embodiments presented herein.
- baffle 10 can comprise a permeable support region 30 through at least a portion of an interior section within the perimeter of the baffle 10.
- the permeable support region 30 can comprise support elements 32 that can contact or interface with the tube 20 or series of tubes 22 and are capable of supporting the tube 20 or series of tubes 22.
- Support elements 32 of permeable support region 30 can take on various shapes and orientations.
- support elements 32 can be elongate members that are generally orientated parallel to either the x-axis or y-axis of the profile of baffle 10.
- the generally elongate support elements 32 can comprise regions that generally conform to the shape of the tube 20 or series of tubes 22 that are received and supported by support elements 32.
- regions can define a rounded or semi-circular shape that conforms to generally round tubes 20 or series of tubes 22.
- support elements 32 can be oriented at generally diagonal orientations relative to the profile of the baffle 10, such that the support elements 32 are not generally orientated parallel to either the x-axis or y-axis of the profile of the baffle 10.
- support elements 32 can comprise generally angled or stepped regions that generally conform to the shape of the tube 20 or series of tubes 22 that the support elements 32 receive and support.
- support elements 32 can support the tube 20 or series of tubes 22 through various means, including, without limitation, by allowing the tube 20 or series of tubes 22 to bear on the support elements 32 through gravitational force.
- Support elements 32 can also be configured so that the tubes 20 can be press- fit within notches formed by the angled or stepped regions.
- support elements 32 can be arranged within baffle 10 to define voids 34.
- the voids 34 defined by the support elements 32 permit shell-side fluid (not shown) to pass through baffle 10 and flow along the lengths of the tube 20 or series of tubes 22 generally without impediment, which can prevent excessive shell-side pressure drop.
- support elements 32 and voids 34 of baffle 10 can allow for the baffle 10 to adequately support the tube 20 or series of tubes 22 without significantly affecting the flow of shell-side fluid along the lengths of the tube 20 or series of tubes 22 and creating excessive shell- side pressure drop.
- the reduction in excessive shell-side pressure drop allows baffle 10 to be utilized in heat exchangers of larger size and longer lengths, which improves the efficiency, scales of production, and general heat-exchange nature of the heat exchanger, as well as other desirable aspects for heat exchangers.
- reducing excessive pressure drop in the shell-side fluid can promote the efficiency of heat transfer between tube-side fluid and shell-side fluid when compared to known baffle designs for heat exchangers.
- FIG. 2 depicts a front- view illustration of a baffle 10 according to an exemplary embodiment.
- baffle 10 can have a barrier region 40 that can be comprised of a solid portion 42 that is generally impermeable.
- barrier region 40 of the baffle 10 can define a plurality of holes 44 to receive and support a tube (not shown) or series of tubes (not shown) of a heat exchanger (not shown) for purposes of preventing sagging and vibration along the length of a specific tube or series of tubes.
- the size of the holes 44 can correspond with the diameter of a tube received and supported thereby.
- the holes 44 defined by the barrier region 40 can support the tube or series of tubes through various means, including, without limitation, by allowing the tube or series of tubes to bear on the barrier region 40 through gravitational force.
- FIGS. 3-6 schematically illustrate additional baffle designs according to exemplary embodiments presented herein.
- the baffle 10 can define a permeable support region 30, including support elements 32 and voids 34, and a barrier region 40, including a solid portion 42 and a plurality of holes 44.
- the permeable support region 30 and the barrier region 40 of a baffle 10 can correspondingly vary in size.
- the permeable support region 30 and the barrier region 40 of the baffle 10 define corresponding semicircle shapes, wherein barrier region 40 and holes 44 defined thereby enable three (3) rows of tubes 20 to extend therethrough.
- a semicircular shape defined by the barrier region 40 of the baffle 10 can correspond with any suitable number of rows of tubes 20 as required by its application.
- the barrier region 40 of baffle 10 can define a segment of the circular profile of the baffle 10, wherein the segment is defined by a chord and arc of the circular profile of the baffle 10.
- the segment defined by the barrier region 40 of the baffle 10 can be a major segment, defining a proportion of the profile of the baffle 10 of greater than fifty percent, or a minor segment, defining a proportion of the profile of the baffle 10 of fifty percent or less.
- the barrier region 40 of the baffle 10 is a minor segment.
- a baffle 10 according to exemplary embodiments can comprise a segment defined by barrier region 40 and holes 44 to enable two (2) rows of tubes 20 to extend therethrough.
- a baffle 10 can comprise a segment defined by barrier region 40 and holes 44 to enable one (1) row of tubes 20 to extend therethrough.
- a baffle 10 according to exemplary embodiments can comprise a segment defined by barrier region 40 that does not enable any rows of tubes 20 to extend therethrough.
- a segment, of various sizes, defined by the barrier region 40 of the baffle 10 can correspond with any suitable number of rows of tubes 20 as required by its application.
- the permeable support region 30 and the barrier region 40 of a baffle 10 can correspondingly vary in shape.
- the permeable support region 30 and the barrier region 40 can assume various geometrical shapes.
- the barrier region 40 can define a sector of the circular profile of the baffle 10. Such sector defined by the barrier region 40 being generally defined by two radii, which also define a central angle therebetween, and an arc of the circular profile of the baffle 10 corresponding with the central angle.
- the sector defined by the barrier region 40 of the baffle 10 can be a major sector, with a central angle exceeding 180°, or a minor sector, with a central angle of 180° or less.
- the sector defined by the barrier region 40 can be a semicircle (with a central angle of approximately 180°), a quadrant (with a central angle of approximately 90°), a sextant (with a central angle of approximately 60°), an octant (with a central angle of approximately 45°), and any other sub-sector shape defined by a central angle of varying degrees.
- a baffle 10 defines a permeable support region 30 and a barrier region 40 according to embodiments disclosed herein, and either the permeable support region or the barrier region define one of the shapes discussed herein (including a triangle, a square, a pentagon, a hexagon, and any similar symmetrical and non-symmetrical shapes or series of shapes), the remainder of the profile of the baffle 10 can define the corresponding permeable support region or barrier region, which can define a shape that corresponds with the first defined region, and vice versa.
- the shape defined by either the permeable support region 30 or the barrier region 40 of a baffle 10 can be a single, continuous region or multiple, non-continuous regions.
- barrier region 40 can define a single portion of the circular profile of baffle 10 and generally form a semicircle (notwithstanding the holes 44 in the solid portion 42 of the barrier region 40).
- Embodiments presented herein can also comprise a baffle where the barrier region 40 is defined by multiple, non-continuous portions within the circular profile of the baffle 10.
- the barrier region 40 can define two discrete and non-continuous minor segments, of equal or different sizes.
- the barrier region 40 can define two discrete and non-continuous minor sectors, of equal or different sizes, within the circular profile of the baffle 10 that are angularly offset by some angle between the respective sectors. Further yet, the barrier region 40 can define a single, continuous semicircle or minor segment, and the permeable support region 30 can define multiple, non-continuous portions of the circular profile of the baffle 10, such as the corresponding semicircle or major segment to the barrier region 40 and one or more minor segments or minor sectors generally within the profile defined by the single, continuous barrier region 40.
- the size and shape of the permeable support region 30 and the barrier region 40 of a baffle 10 representatively depicted and described herein generally relate to or correspond with a baffle 10 that defines a profile with a generally circular shape
- the profile of the baffle 10 can assume any other suitable geometrical shape.
- the size and shape of the permeable support region 30 and the barrier region 40 of the baffle 10, and the general proportional of each to overall profile of the baffle 10 can be translated to similar sizes, shapes, and proportions for use with a baffle 10 that defines a profile with a triangle, a square, a pentagon, a hexagon, or any similar symmetrical and non-symmetrical shapes or series of shapes.
- the permeable support region 30 and a barrier region 40 of a baffle can be formed through a variety of means.
- the permeable support region 30 and a barrier region 40 of a baffle can be formed from a single piece of material, such as a metal, through a cutting process, including, without limitation, a water-jet cutting process, laser cutting, and die cutting. Use of such cutting processes allow for efficient and cost-effective production of the baffle 10, especially over other means for forming a baffle 10 that may require connecting or affixing pieces of material together, including through the use of various fastening means and welding.
- FIG. 7 depicts a side-view illustration of a baffle 10 according to exemplary embodiments.
- baffle 10 can define a height H, which can generally correspond with the diameter of a heat exchanger (not shown).
- Baffle 10 may be of any suitable height H depending upon its desired application.
- the height H of the baffle 10 may be between about four (4) inches and about six (6) feet in one embodiment.
- baffle 10 can define a thickness T.
- Baffle 10 may be of any suitable thickness T depending upon its desired application.
- the thickness T of a baffle 10 may be between about one-quarter (1/4) inch and three (3) inches.
- baffle system 100 can comprise a series of baffles 10 that can be concentrically aligned in sequence.
- the baffle system 100 depicted in FIGS. 8-14 can be utilized with a heat exchanger (not shown) comprising a generally elongate tube 20 or series of generally elongate tubes 22.
- the baffles 10 of baffle system 100 can be aligned to receive and support a tube 20 or series of tubes 22 that pass through the baffles 10. It will be appreciated that although FIG.
- baffles 10 can support the tube 20 or series of tubes 22 over their lengths to prevent sagging and vibration of a specific tube 20 or series of tubes 22.
- individual baffles 10 of baffle system 100 can be axially displaced from each other in a direction generally parallel to the tube 20 or series of tubes 22 that pass through and are received by the individuals baffles 10 of the baffle system 100 by a baffle spacing L.
- the baffle system 100 may have any suitable baffle spacing L between individual baffles depending upon its desired application.
- the baffle spacing L of the baffle system 100 may be between about six (6) inches and about six (6) feet in one embodiment, between about one (1) foot and about four (4) feet in another embodiment, and about three (3) feet in a further embodiment.
- FIG. 9 depicts a perspective-view illustration of a baffle system 100 according to exemplary embodiments presented herein.
- at least one baffle 10 of baffle system 100 can define a barrier region 40.
- the barrier region 40 of at least one baffle 10 of baffle system 100 can be in axial alignment with the permeable support region 30 of another baffle 10 of the baffle system 100, wherein at least a portion of the permeable support region 30 of one baffle 10 is in substantially the same orientation as the barrier region 40 in a second baffle 10 that is concentrically aligned and rotationally oriented with the first baffle 10.
- a tube (not shown) passing through the permeable support region 30 of one baffle 10 depicted in FIG. 9 can extend therefrom and pass through the barrier region 40 of a second baffle 10 where the permeable support region 30 is in axial alignment with the barrier region 40.
- the barrier region 40 of at least one baffle 10 of baffle system 100 can interact with the flow of shell-side fluid (not shown) as it flows through the interior of a heat exchanger along the lengths of the tube or series of tubes (not shown) and passes through each baffle 10 of the baffle system 100.
- the interaction between the barrier region 40 of at least one baffle 10 of the baffle system 100 and the shell-side fluid can disturb and create turbulence in the flow of the shell-side fluid.
- the turbulence in the flow of the shell-side fluid can prevent stratification in the flow of the shell-side fluid over the length of the tube or series of tubes.
- the common orientation of the barrier region 40 of at least one baffle 10 with the permeable support region 30 a different baffle 10 of the baffle system 100 can prevent the stratification in the flow of the shell-side fluid over the length of the tube or series of tubes without impeding flow of the shell-side fluid and creating excessive shell-side pressure drop within the heat exchanger.
- the prevention of stratification in the flow of the shell-side fluid over the length of the tube or series of tubes, without creating excessive shell-side pressure drop increases the efficiency of the heat exchanger (not shown) and can enable the baffle system 100 to be utilized in heat exchangers of various sizes and lengths, including heat exchangers with reduced diameters.
- ten-inch hairpin (multitube) type heat exchanger could be used in a ten-inch hairpin (multitube) type heat exchanger to optimize the hairpin (multitube) type heat exchanger by preventing stratification of the shell-side fluid over the lengths of the tube or series of tubes without creating excessive shell-side pressure drop.
- Optimizing ten-inch hairpin (multitube) type heat exchangers is desirable, because ten-inch hairpin (multitube) type heat exchangers can be produced more cost-effectively (e.g., smaller components, less materials, and so on) and allow for a more enhanced process of heat exchange that generally results in less fouling of the heat exchanger.
- a baffle system 100 is shown according to exemplary embodiments as having at least three baffles 10, wherein each baffle 10 defines a barrier region 40.
- the barrier region 40 of each baffle 10 of the baffle system 100 can be angularly offset, about a concentrically aligned longitudinal axis defined by the center points of the profile of each baffle 10.
- the barrier region 40 of each baffle 10 of the baffle system 100 depicted in FIG. 10 can have a slight angular offset between about 10° and about 30° in one embodiment, and about 15° in another embodiment.
- at least a portion of the barrier region 40 of each baffle 10 of the baffle system 100 depicted in FIG. 10 can still be in general axial alignment with the barrier region 40 of the other baffles 10 of the baffle system 100.
- the barrier region 40 of each baffle 10 of baffle system 100 can have a moderate angular offset between about 30° and about 180° in one embodiment, and about 120° in another embodiment.
- the barrier region 40 of each baffle 10 of the baffle system 100 can have an angular offset of about 180° in an exemplary embodiment of the present invention, wherein the barrier regions 40 of every other baffle 10 can be in axial alignment.
- the angular offset between barrier regions 40 of each baffle 10 of a baffle system 100 may be any suitable number of degrees.
- the angular offset can be between about 1° and about 180° in one embodiment, between about 15° and about 150° in another embodiment, between about 45° and about 120° in yet another embodiment, and about 90°.
- the series of barrier regions 40, and relative arrangement thereof, depicted in FIGS . 10-12 can produce a swirl flow effect in the flow of the shell-side fluid.
- a swirl effect created in the flow of a shell- side fluid of a heat exchanger can have several advantages and benefits.
- swirl effect can reduce stratification in the flow of the shell-side fluid, reduce excessive shell-side pressure drop, and can promote the efficiency of heat transfer between tube-side fluid and shell-side fluid when compared to known baffle designs for heat exchangers.
- the swirl flow effect can thus allow for the production of more efficient and longer heat exchangers, which generally improves the efficiency, scales of production, and general heat-exchange nature of the heat exchanger, as well as other desirable aspects for heat exchangers.
- Angled baffles and/or spiraling, continuous baffles however can be cost-intensive, resource-intensive, and time intensive to produce, because the angle and spiraling nature of the baffle do not provide a flat or otherwise generally planar profile, and removing or cutting portions from the baffle as a whole, including voids and holes, is generally difficult and limited to certain complicated and complex drilling techniques.
- spiral, continuous baffles must usually be manufactured in various twisted and spiraled baffle portions that must be connected or affixed together through the use of various fastening means and welding, which is time-intensive and creates weak points in the baffle.
- FIG. 13 depicts a perspective-view illustration of a baffle system 100 according to exemplary embodiments.
- baffle system 100 can have at least three baffles 10, wherein at least two of the baffles 10 define a barrier region 40.
- the profile of at least one of the baffles 10 can comprise a majority or nearly all of a barrier region 40, wherein such barrier region 40 can be in axial alignment with a second barrier region 40 of another baffle 10 of the baffle system 100. Further, such barrier region 40 can be in axial alignment with at least one of the permeable support regions 30 of the other baffles 10 of the baffle system 100.
- FIG. 14 depicts a perspective-view illustration of a baffle system 100 according to exemplary embodiments.
- at least one baffle 10 of the baffle system 100 can define a non-continuous barrier region 40 that can generally comprise two discrete and non-continuous minor segments, as previously described.
- a baffle 10 having a non-continuous barrier region 40 can be positioned between battles having a continuous barrier region 40.
- FIGS. 9-14 are depicted without tube 20 or series of tubes 22, it will be appreciated that embodiments presented herein may comprise such tubes or other components of a heat exchanger (e.g., a shell, a shroud, and so on) of a heat exchanger without limitation.
- a heat exchanger e.g., a shell, a shroud, and so on
- the present inventions may comprise conventional technology (e.g., as implemented and/or integrated in exemplary embodiments, modifications, variations, combinations, equivalents, and so on) or may comprise any other applicable technology (present and/or future) with suitability and/or capability to perform the functions and processes/operations described in the specification and/or illustrated in the FIGURES. All such technology (e.g., as implemented in embodiments, modifications, variations, combinations, equivalents, and so on) is considered to be within the scope of the present inventions of the present patent document.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202062960720P | 2020-01-14 | 2020-01-14 | |
PCT/IB2021/050131 WO2021144671A1 (fr) | 2020-01-14 | 2021-01-08 | Déflecteur seg-lok pour échangeur de chaleur |
Publications (3)
Publication Number | Publication Date |
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EP4090902A1 true EP4090902A1 (fr) | 2022-11-23 |
EP4090902C0 EP4090902C0 (fr) | 2024-03-27 |
EP4090902B1 EP4090902B1 (fr) | 2024-03-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21700456.3A Active EP4090902B1 (fr) | 2020-01-14 | 2021-01-08 | Déflecteur seg-lok pour échangeur de chaleur |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230056350A1 (fr) |
EP (1) | EP4090902B1 (fr) |
KR (1) | KR20220124163A (fr) |
CN (1) | CN114981610A (fr) |
CA (1) | CA3160610A1 (fr) |
ES (1) | ES2976832T3 (fr) |
WO (1) | WO2021144671A1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1904875A (en) * | 1931-07-23 | 1933-04-18 | Ingersoll Rand Co | Heat exchanger |
JPH05296680A (ja) * | 1992-04-14 | 1993-11-09 | Toshiba Corp | 熱交換器の伝熱管支持構造体 |
ATE428900T1 (de) * | 2003-12-22 | 2009-05-15 | Shell Int Research | Stütze für ein rohrbündel |
FR3002316B1 (fr) * | 2013-02-19 | 2015-03-27 | Dcns | Echangeur de chaleur monophasique du type a chicanes ameliore et plaque de cloisonnement pour un tel echangeur |
-
2021
- 2021-01-08 KR KR1020227022191A patent/KR20220124163A/ko unknown
- 2021-01-08 WO PCT/IB2021/050131 patent/WO2021144671A1/fr unknown
- 2021-01-08 CA CA3160610A patent/CA3160610A1/fr active Pending
- 2021-01-08 ES ES21700456T patent/ES2976832T3/es active Active
- 2021-01-08 EP EP21700456.3A patent/EP4090902B1/fr active Active
- 2021-01-08 CN CN202180008809.7A patent/CN114981610A/zh active Pending
- 2021-01-08 US US17/792,417 patent/US20230056350A1/en active Pending
Also Published As
Publication number | Publication date |
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CA3160610A1 (fr) | 2021-07-22 |
US20230056350A1 (en) | 2023-02-23 |
ES2976832T3 (es) | 2024-08-09 |
EP4090902C0 (fr) | 2024-03-27 |
KR20220124163A (ko) | 2022-09-13 |
WO2021144671A1 (fr) | 2021-07-22 |
EP4090902B1 (fr) | 2024-03-27 |
CN114981610A (zh) | 2022-08-30 |
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