US20200049412A1 - Shell-and-tube apparatus with baffles - Google Patents

Shell-and-tube apparatus with baffles Download PDF

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Publication number
US20200049412A1
US20200049412A1 US16/485,653 US201816485653A US2020049412A1 US 20200049412 A1 US20200049412 A1 US 20200049412A1 US 201816485653 A US201816485653 A US 201816485653A US 2020049412 A1 US2020049412 A1 US 2020049412A1
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Prior art keywords
tabs
baffles
tubes
shell
baffle
Prior art date
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Abandoned
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US16/485,653
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English (en)
Inventor
Enrico Rizzi
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Casale SA
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Casale SA
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Assigned to CASALE SA reassignment CASALE SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RIZZI, ENRICO
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • 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
    • F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. 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
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations

Definitions

  • the invention relates to the field of shell-and-tube apparatus.
  • Shell-and-tube apparatus are used normally as heat exchangers between a fluid which flows inside the tubes and a fluid which flows in the shell side.
  • Known shell-and-tube apparatus comprise baffles which have essentially two functions: a fluid-dynamic function of deviating and/or accelerating the fluid in the shell side, thus increasing the heat exchange coefficient; and a structural function for preventing vibration of the tubes;
  • U.S. Pat. Nos. 5,058,664 and 5,642,778 disclose a known method for manufacturing baffles consisting of a rod-baffle supported by a framework.
  • EP 2 469 215 discloses baffles formed by thin plates which intersect forming a grille and which are inclined so as to deflect the shell-side flow.
  • each single baffle is composed of several parts which need to be welded and/or fitted together and consequently the construction is relatively costly. Moreover insertion of the tubes through the baffles is a difficult operation.
  • the prior art shell-and-tube apparatus generally have a transversal shell-side flow. This term denotes that the gaseous flow outside and around the tubes is mainly directed perpendicular to the axis of tubes. This arrangement typically involves a number of passages crossing various sections of the tube bundle between consecutive baffles.
  • a transversal shell-side is generally preferred to provide a good heat exchange between the gaseous flow and the surface of tubes.
  • baffles provide a proper sealing of the tube bundle sections, to avoid gas bypass from one section to another.
  • the baffle must create a sealing collar around each tube which, however, may increase the cost and/or may render the insertion of tubes more difficult.
  • BE 1018891 and U.S. Pat. No. 4,834,173 describe, for example, heat exchangers with a transversal shell-side flow.
  • EP 3 115 734 describes baffles which allow the free insertion of tubes and their subsequent locking.
  • the object of the invention is to provide a novel method for manufacturing baffles of shell-and-tube apparatus which is advantageous both from the structural point of view and from the point of view of internal fluid dynamics.
  • the baffles comprise a metal plate which has openings for the passage of the tubes through said baffle.
  • the baffles comprise tabs protruding from the surface of the baffle. These tabs cooperate to the fluid dynamics and/or the anti-vibrational structural function as will be explained below with the aid of examples.
  • the baffles are substantially flat elements perpendicular to the axis of the tubes (i.e. to the axis of the tube bundle).
  • the tabs extend from the surface of the respective baffle in a direction parallel to the axis of the tube bundle or in a direction inclined relative to said axis.
  • Each tab may extend over an area equal to, or less than, the area of the corresponding opening formed in the metal plate.
  • Said tabs may be configured for a fluid-dynamic function, suitable for deviating the shell-side fluid, and/or a structural function of elastically supporting the tubes. Tabs able to cause a significant deviation of the motion of the shell-side fluid are termed fluid-dynamic.
  • the shell-side gaseous flow is axial or predominantly axial. Accordingly the gas input(s) and gas output(s) of the shell side of the apparatus are arranged to provide said axial or predominantly axial flow.
  • at least some of said tabs are fluid-dynamic tabs adapted to deviate (e.g. incline of a given angle) the shell-side gaseous flow from the main axial direction.
  • the tabs of the baffles are overall arranged to give the shell-side fluid a motion component in the direction transverse to the direction of the longitudinal axis of the tubes or the tube bundle.
  • the tabs are arranged to give the shell-side fluid a substantially sinusoidal motion or a substantially helical motion.
  • An arrangement of the tabs such as to give the shell-side fluid a substantially sinusoidal flow is preferred when the tubes have a square or triangular pitch.
  • An arrangement of the tabs such as to give the shell-side fluid a substantially helical flow is preferred when the tubes are arranged on circular ranks, even though sinusoidal flows may also be obtained with the latter configuration of tubes.
  • the apparatus comprises baffles with differently configured tabs.
  • the apparatus may comprise two or more sets of baffles in which each set has a specific configuration of tabs.
  • configuration may comprise one or more features such as for example shape, size and orientation of the tabs.
  • Baffles with different configurations may be suitably distributed along the tube bundle, for example they can alternate with each other.
  • a sequence of baffles with differently configured tabs imparts a target path to the shell-side fluid, creating preferential paths across the shell side, and/or gives a certain degree of turbulence to said fluid.
  • a suitable path and/or increase in turbulence may increase the heat exchange.
  • said sequence of baffles may create supports for the tubes according to different planes for effectively dampening the vibrations.
  • the tabs of adjacent baffles rest advantageously on a same tube according to different support planes.
  • an apparatus comprises at least a first set of baffles with a first configuration of tabs, and a second set of baffles with a second configuration of tabs, wherein the second configuration is conjugate to the first configuration and the baffles of the first set and second set alternate along at least part of the tube bundle.
  • a baffle with the first configuration of tabs faces, and is adjacent to, a baffle with the second configuration of tabs, and so on.
  • the shell-side flow therefore encounters alternately tabs of the first configuration and tabs of the second configuration. Said tabs in a conjugate configuration cooperate to give the shell-side fluid a desired fluid dynamic effect. According to preferred embodiments, said fluid-dynamic effect results in essentially sinusoidal or essentially helical flow lines.
  • the embodiments with a sinusoidal shell-side flow and the embodiments with a helical shell-side flow may be combined with each other, for example by configuring the baffles for obtaining a sinusoidal flow along at least part of tube bundle and a helical flow along at least another part of the tube bundle.
  • a single baffle may comprise tabs with a different configuration. Accordingly, for example, different portions of a single baffle have a different fluid-dynamic effect.
  • the tabs may have various forms.
  • the tabs have a substantially two-dimensional form wherein one size, for example the thickness, is significantly smaller than the other two sizes.
  • the tabs have a substantially mono-dimensional form in which one size is predominant over the other two.
  • the tabs may have a polygonal form or a more complex form.
  • each opening for one or more tubes comprises at least a first region suitable for receiving the tube or tubes with play and a second region suitable for receiving the tube or tubes with less play or with substantially no play.
  • the baffles are staggered or rotated relative to their operating configuration.
  • the tubes switch from the first regions into the second regions of the openings, where they are substantially locked in position.
  • the motion which leads the baffles from the assembly position into the operating position may be a displacement (so-called “shift-lock” embodiment) or a rotation (so-called “twist-lock” embodiment).
  • the tabs are advantageously formed so as to provide an elastic support for the tubes when the baffle is in the locking position. In this way the invention provides the further advantage of providing the system with a certain degree of elasticity and flexibility.
  • the material of the baffles is steel sheet.
  • the baffle may be a single body formed by the cut or punched metal plate or may comprise further elements such as a peripheral reinforcing ring.
  • said metal plate comprises a plurality of superimposed metal sheets.
  • the metal plate has the shape of a disc or portion of a disc.
  • Each baffle may extend over the whole of or substantially the whole cross-sectional area of the shell side, or it may extend only over a portion of said area. Baffles which cover only a part of the cross-sectional area of the shell side may be alternated with a different arrangement, for example to cover different portions of the area.
  • the advantage of the invention is given by the constructional simplicity combined with the fact that baffles actively cooperate with the fluid dynamics and/or the structural feature.
  • the invention allows to realize an apparatus in which the baffles cooperate to the internal fluid dynamics by directing the shell-side flow and further provide a yielding elastic support for the tubes.
  • the tabs projecting from the surface of the baffle act essentially like bracket elements which are able to bend and therefore provide an elastic support for the tubes.
  • the invention solves the problem by allowing a precise mounting which, at the same time, gives the system a certain elasticity owing to the ability of the tabs to flex.
  • the fluid-dynamic effect has the advantage of increasing the heat exchange coefficient and optimising the shell-side flow, exploiting the passages through the baffles for this purpose without introducing substantive additional head losses.
  • the suitably directed shell-side flow for example with sinusoidal or helical lines, runs over all tubes and allows full exploitation of the tube bundle.
  • the openings for the tubes are formed in the metal plate of the baffle, advantageously with a punching or cutting process, and said tabs are formed by strips of material of the metal plate, generated by the cutting or punching of the openings, and bent in appropriate manner.
  • Preferred cutting techniques comprise laser cutting and water-jet cutting.
  • the tabs are formed by elements firmly applied on the metal plate at the openings.
  • the tabs are sheet-metal elements applied by means of welding, preferably spot-welding (resistance welding).
  • the baffles comprise advantageously a plate with a small thickness, such that the tabs are elastic and easy to bend.
  • a reinforcing ring welded to the outer edge of the plate can be provided.
  • the second embodiments have the advantage that the thickness of the tabs may differ from the thickness of the metal plate forming the baffle.
  • the tabs may be thinner to ensure they are elastic and easy to bend.
  • a baffle comprises a metal plate of the desired thickness, with openings for the tubes obtained by means of laser cutting or water-jet cutting; the fluid-dynamic tabs are made from thin sheet metal and are applied on the baffle in the region of the openings by means of spot welds.
  • the metal plate comprises two superimposed metal sheets of different thickness.
  • a first metal sheet with a relatively large thickness has a structural function and comprises the through-openings for the passage of the tubes.
  • a second metal sheet with a smaller thickness (less than that of the first sheet) is mounted onto the first sheet and comprises the fluid-dynamic tabs.
  • Said tabs in this case, may be formed by bending the strips or part of the strips extending beyond the openings. The tabs may be bent before the insertion of tubes or during the insertion of tubes.
  • both the construction methods described above are faster and cheaper than the conventional methods which envisage forming the baffles by assembling a large number of linear elements of the bar type.
  • the invention is advantageous both for exchangers with or without the said system for locking the tubes during assembly.
  • an apparatus according to the invention is a chemical reactor for use in a chemical plant.
  • the chemical reactor may contain a catalyst in some embodiments.
  • Another advantage of the invention consists in the possibility of providing differently configured tabs on the same baffle. In this way it is possible to achieve better control of the internal fluid dynamics.
  • the invention is applicable to apparatus with straight tubes and apparatus with U-shaped tubes.
  • the baffles are applied along the straight portion of the U-shaped tubes.
  • Still another advantage of the invention is that the apparatus can have an axial or predominantly axial shell-side flow, which has a smaller pressure drop compared to transversal shell-side flow.
  • the baffles do not need to create a gas-tight seal around tubes, which facilitates their insertion. Thanks to the fluid-dynamic effect of the tabs, the invention provides a good heat exchange combined with the low pressure drop of the axial-flow design.
  • FIG. 1 shows a simplified diagram of a shell-and-tube apparatus comprising a set of anti-vibration baffles.
  • FIG. 2 shows a tube passing through a baffle in an embodiment of the invention.
  • FIG. 3 shows in schematic form a set of baffles of the apparatus shown in FIG. 1 , according to a first example of a variant of the invention.
  • FIG. 4 is a schematic cross-section through the baffles and the tubes according to FIG. 3 and shows the shell-side flow lines.
  • FIG. 5 shows a detail of FIG. 4 .
  • FIG. 6 shows a set of baffles in a second variant of the invention.
  • FIG. 7 shows a set of baffles in a third variant of the invention.
  • FIG. 8 is a schematic cross-section through the baffles and the tubes according to FIG. 7 .
  • FIG. 9 shows a set of baffles in a fourth variant of the invention.
  • FIGS. 10 to 13 show a number of variations of embodiment of the tabs of the baffles.
  • FIGS. 14 and 15 show further embodiments of the tabs of the baffles.
  • FIG. 1 shows in schematic form a shell-and-tube apparatus 1 comprising: a shell 2 ; a straight-tube bundle 3 ; a plurality of baffles 5 separated by an interval p; two tube plates 6 .
  • a shell-and-tube apparatus 1 comprising: a shell 2 ; a straight-tube bundle 3 ; a plurality of baffles 5 separated by an interval p; two tube plates 6 .
  • FIG. 1 for simpler illustration, only the axes of the tubes are indicated. Moreover the central axis 20 of the tube bundle 3 which is parallel to the axes of the tubes is indicated.
  • Each of the baffles 5 ( FIG. 2 ) comprises essentially a metal disc 10 in which openings 11 for allowing the tubes 4 to pass through are formed.
  • the baffle 5 comprises appendix tabs 12 formed by strips of material of the disc 10 which protrude from one side 13 of the disc 10 .
  • the openings 11 and the tabs 12 may be formed using various methods.
  • the openings 11 are obtained by means of partial punching and the tabs 12 are formed by strips of the material of the disc 10 , which instead of being removed, remain attached to the disc;
  • the openings 11 may be obtained using a suitable cutting method, preferably laser or water-jet cutting, and subsequent bending of strips to form the tabs 12 ;
  • the tabs 12 are thin sheet-metal elements which are mounted on the disc 10 .
  • Each opening 11 is passed through by a tube 4 or several tubes 4 depending on the specific embodiment.
  • FIGS. 3 to 5 show an embodiment (shift lock type) in which the tubes 4 can be freely inserted into the openings 11 , with a certain amount of play, when the baffles 5 are in an axially offset assembly position.
  • the baffles can be locked on the tubes with conjugate linear displacements +f or ⁇ f which bring the said baffles into alignment.
  • the direction of said displacements +f, ⁇ f is also called locking direction.
  • adjacent baffles are locked by displacements in opposite directions.
  • the openings 11 have an essentially trapezoidal form comprising a base portion suitable to receive a tube with play, and flanks converging towards a tapered head portion for locking the tube.
  • a base portion suitable to receive a tube with play
  • flanks converging towards a tapered head portion for locking the tube.
  • FIGS. 10-15 Such an embodiment is also shown in FIGS. 10-15 .
  • the set of baffles 5 comprises first baffles 5 a having a first configuration of tabs 112 a and second baffles 6 b having a second configuration of tabs 112 b in which the first baffles 5 a and the second baffles 5 b alternate with each other in the longitudinal direction of the tube bundle.
  • the figure also shows a tube plate 6 .
  • the baffles 5 a and 5 b can be locked on the tube bundle by means of the linear displacements +f, ⁇ f, respectively.
  • the tabs 112 a with said first configuration protrude from the respective baffles 5 a in a direction forming, in a reference plane, a first angle a 1 with the direction of the direction of the axis 14 of the tubes and the axis 20 of the tube bundle 3 .
  • the tabs 112 b with said second configuration protrude from the respective baffles 5 b in a second direction forming with said direction of the axes 14 and 20 , in the same reference plane, a second angle a 2 with a sign opposite to that of the first angle a 1 ( FIG. 5 ).
  • the absolute value (modulus) of said first angle a 1 and second angle a 2 is comprised between 30 and 60 degrees, and is preferably 45 degrees.
  • Said reference plane is for example the plane shown in FIG. 4 .
  • the upper surface 120 of a tab 112 a faces the opening 11 and comprises a flat surface inclined at said angle a 1 relative to the direction of the axis 20 of the tube bundle.
  • the upper surface 121 of a tab 112 b has a flat surface with an inclination a 2 relative to the said axis 20 .
  • the tabs 112 a and 112 b deviate the shell-side flow inside the apparatus 1 alternately in two different directions, for example upwards and downwards, resulting in substantially sinusoidal flow lines Fs bending upwards or downwards while traversing the first baffles 5 a or the second baffles 5 b , respectively.
  • the tabs 112 a , 112 b are arranged on one side of the opening 11 which moves towards the tube 4 as a result of the locking displacement +f or ⁇ f, for example on the smaller side of trapezoidal openings 11 .
  • the aforementioned tabs 112 a , 112 b provide an elastic support for the tubes 4 when the baffles 5 a , 5 b switch from the assembly position to the locked position.
  • a tube 4 makes a bearing contact alternately according to one direction and according to an opposite direction, for example upwards and downwards.
  • the tubes 4 are wedged between the inclined flanks of the openings 11 ; the tabs 112 a , 112 b provide an elastic element to recover any play due to the constructional tolerances.
  • the tabs 112 a , 112 b have both a fluid dynamic function, determining sinusoidal flow lines, and a structural function of elastically supporting the tubes 4 , compensating for play due to the constructional tolerances, and preventing vibrations.
  • FIG. 6 shows a variant of the embodiment of FIGS. 3-5 , in which the tabs 112 a , 112 b are arranged laterally with respect to the locking direction of baffles 5 , for example along the converging flanks of the trapezoidal openings 11 .
  • FIGS. 7 and 8 shows a variant of the twist-lock type in which the baffles 5 pass from an assembly position (where the tubes can be freely inserted with play into the openings 11 ) into a locking position with conjugate rotations + ⁇ or ⁇ about the axis 20 .
  • adjacent baffles allow locking of the tubes with rotations in opposite directions.
  • the set of baffles 5 advantageously comprises first baffles 5 a and second baffles 5 b with tabs 212 a , 212 b configured to impart a helical motion to the shell-side fluid.
  • the tabs 212 a , 212 b extend from opposite sides of the baffles, for example the tabs 212 a extend from front sides 13 a of the baffles 5 a and the tabs 212 b extend from rear sides 13 b of the baffles 5 b .
  • the tabs 212 a , 212 b are also angularly offset.
  • the tabs 212 a , 212 b deviate the shell-side flow helically around the direction of the axes 14 and 20 , thus generating essentially helical flow lines Fe.
  • the tabs 212 a , 212 b are positioned, relative to the openings 11 , so that the tubes 4 move towards said tabs 212 a , 212 b when the baffle passes from the assembly position into the operating position.
  • the tabs also act as elastic supports for the tubes and for recovery of the play (in a similar manner to that shown in FIGS. 3-5 ).
  • FIG. 9 shows a variant of FIGS. 7 and 8 in which the tabs 212 a , 212 b are positioned laterally with respect to the locking movement (in a similar manner to that shown in FIG. 6 ). With the configuration of the tabs shown in FIG. 9 a sinusoidal flow associated with the twist-lock configuration is obtained.
  • FIGS. 10-13 show examples of embodiment of the tabs, indicated generally by the reference number 12 .
  • FIGS. 14 and 15 shows further examples of embodiment. Said examples of embodiments in FIGS. 10 to 15 are likewise applicable to the various embodiments shown in FIGS. 1-9 .
  • FIG. 10 shows an example of embodiment in which the tabs 12 have an essentially polygonal trapezium-like form and are connected to the sheet-metal disc along one side 15 .
  • FIG. 11 shows a variant in which only a part of the material removed from the disc 10 forms the tab 12 and, consequently, the area of the tabs 12 is smaller than the area of the openings 11 .
  • FIG. 12 shows a variant in which the tabs 12 are joined to a base 16 of the opening 11 having an essentially trapezoidal form.
  • FIG. 13 shows a variant in which the openings 11 each comprise two tabs 12 which extend on opposite sides relative to the plane of the baffle.
  • Openings with an essentially trapezoidal form as shown in FIGS. 10-12 are generally suitable for receiving only one tube 4 ; consequently the baffle requires a number of openings 11 equal to the number of tubes 4 .
  • FIG. 13 shows an example of an embodiment of opening 11 of the shift-lock type suitable for receiving four tubes.
  • FIGS. 14 and 15 show an embodiment in which the tabs 12 are formed by thin sheet-metal elements which are mounted on the disc 10 for example by means of spot welds 25 .
  • FIGS. 14 and 15 may be applied to all the variants of the invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Gasket Seals (AREA)
US16/485,653 2017-02-15 2018-01-31 Shell-and-tube apparatus with baffles Abandoned US20200049412A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP17156276.2A EP3364141A1 (en) 2017-02-15 2017-02-15 Shell-and-tube apparatus with baffles
EP17156276.2 2017-02-15
PCT/EP2018/052351 WO2018149639A1 (en) 2017-02-15 2018-01-31 Shell-and-tube apparatus with baffles

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US20200049412A1 true US20200049412A1 (en) 2020-02-13

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US (1) US20200049412A1 (ru)
EP (2) EP3364141A1 (ru)
CN (1) CN110291354B (ru)
AU (1) AU2018221477A1 (ru)
BR (1) BR112019016749A2 (ru)
CA (1) CA3052218A1 (ru)
RU (1) RU2752212C2 (ru)
WO (1) WO2018149639A1 (ru)

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CN114111386A (zh) * 2021-12-01 2022-03-01 浙江银轮机械股份有限公司 Egr冷却器

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EP3364141A1 (en) 2018-08-22
EP3583371A1 (en) 2019-12-25
WO2018149639A1 (en) 2018-08-23
RU2019122643A (ru) 2021-03-16
CA3052218A1 (en) 2018-08-23
CN110291354B (zh) 2021-04-27
RU2019122643A3 (ru) 2021-05-24
BR112019016749A2 (pt) 2020-04-07
RU2752212C2 (ru) 2021-07-23
AU2018221477A1 (en) 2019-07-25
EP3583371B1 (en) 2020-11-18
CN110291354A (zh) 2019-09-27

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