EP0121079B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0121079B1
EP0121079B1 EP84101903A EP84101903A EP0121079B1 EP 0121079 B1 EP0121079 B1 EP 0121079B1 EP 84101903 A EP84101903 A EP 84101903A EP 84101903 A EP84101903 A EP 84101903A EP 0121079 B1 EP0121079 B1 EP 0121079B1
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EP
European Patent Office
Prior art keywords
heat exchanger
connection box
exchanger according
inlet
distributor
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.)
Expired
Application number
EP84101903A
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German (de)
English (en)
Other versions
EP0121079A1 (fr
Inventor
Karl-Ernst Ing. Hummel (Grad)
Bohumil Humpolik
Hans-Joachim Ing. Ingelmann (Grad)
Karl-Heinz Dipl.-Ing. Staffa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0121079A1 publication Critical patent/EP0121079A1/fr
Application granted granted Critical
Publication of EP0121079B1 publication Critical patent/EP0121079B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/028—Evaporators having distributing means
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/454—Heat exchange having side-by-side conduits structure or conduit section
    • Y10S165/471—Plural parallel conduits joined by manifold
    • Y10S165/483—Flow deflecting/retarding means in header for even distribution of fluid to plural tubes

Definitions

  • the invention relates to a heat exchanger of the type specified in the preamble of claim 1.
  • a heat exchanger with an upper and a lower water tank in which the tube ends of a heat exchanger block formed from tubes and fins open.
  • the upper water tank has an inlet on one side and the lower water tank has an outlet for the heat exchanger fluid.
  • the individual tubes of the heat exchanger are acted upon to different degrees, i.e.
  • the amount of heat exchanger fluid that flows through the individual heat exchanger tubes is very different, the difference being essentially influenced by the position of the inlet or the outlet and the installation position of the heat exchanger itself.
  • An uneven loading of the parallel heat exchanger tubes or parallel pipe strands is particularly noticeable in heat exchangers operated with a refrigerant, such as evaporators of air conditioning systems, which leads to a considerable reduction in the performance of the heat exchanger.
  • GB-A-2078362 already describes a heat exchanger in which a separate inlet pipe is provided for each of the parallel-connected pipe coils that begin and end in a connection box. This measure ensures that the coils are evenly pressurized with fluid; however, such a solution is unsuitable for large-scale production in terms of manufacturing costs, since several pipes with different shapes and a large number of pipe connections are necessary.
  • US-A-1537553 describes a heat exchanger for a motor vehicle which comprises a tube / fin block and an upper and a lower connection box. By doing. An inlet connection and an outlet connection for cooling water of a liquid-cooled internal combustion engine are provided in the lower connection box. In this connection box there is a tubular body into which the inlet connection opens. The end of the tubular body adjacent to the inlet connection is closed, the other end is open. A spiral sheet is arranged in the tubular body, which causes the cooling water entering tangentially into the tubular body to be deflected in the axial direction of the tube. Several throttle bores are provided in the wall of the pipe, through which the cooling water can escape from the pipe into the connection box.
  • the problem of a uniform distribution of the heat exchanger fluid on the heat exchanger tubes does not occur since the tubes of the cooler are not in the actual circuit of the cooling water, but are only acted upon by the heat exchanger fluid when the cooling water evaporates.
  • the steam rising in the pipes condenses and flows back into the lower connection box.
  • the distribution device consists of a simply designed and inexpensive body.
  • the distribution device can consist of an injection-molded plastic body or a metallic, commercially available semi-finished product, which is given the desired pitch of the coil by torsion about the longitudinal axis. This results in a distribution device in which there is no extreme change in direction of the fluid and therefore no appreciable pressure losses.
  • a coiled profile body of the same shape can be provided as a collecting device in a second connection box.
  • a preferred development of the subject matter of the invention consists in that a distribution and collection device formed from a common profile body is arranged in the connection box and that an equal number of distribution channels and collection channels is present between the partition walls. This will. created only by a larger number of partitions forming ribs of the profile body an arrangement serving as a distribution and collection device. This arrangement is particularly suitable for heat exchangers constructed from pipe forks.
  • an end plate is arranged on each end face, the collection channels being closed on the input side and the distribution channels on the output side.
  • the distribution device according to the invention can additionally be provided with a flow distributor, such as is used for evaporators in air conditioning systems, without any changes.
  • the openings in the connection box are of different sizes.
  • the opening closest to the inlet has the smallest and the opening furthest away has the largest cross section.
  • connection box is made of plastic, connection pieces for connecting the heat exchanger tubes can be provided in a simple manner.
  • the distribution device be conical on the side facing the inlet.
  • the connection box it is expedient for the connection box to have a conical taper which merges into the inlet, the opening angle of the cone corresponding to the angle of the cone, and the part of the conical surface area adjacent to the base of the cone being covered by the conical taper.
  • the cone of the connection box results in a fixation of the distribution device on the one hand and an enlargement of the passage cross-section relative to the inlet on the other hand.
  • a baffle plate with a swirl chamber in front of it in order to achieve the most homogeneous possible wet steam mixture, it is expedient for a baffle plate with a swirl chamber in front of it to be arranged on the side of the distribution device adjacent to the inlet.
  • the baffle plate has an edge directed into the swirl chamber.
  • a nozzle is provided in the inlet in front of the swirl chamber, by means of which a part of the flow is prevented from being guided past the impingement plate without swirling.
  • the nozzle and the baffle plate are preferably made of a cavitation-resistant material.
  • the inlet cannot extend in the same direction as the connection box and the flow device should not begin in or immediately behind an arch for fluidic reasons, it is easily possible for the distribution device to be evenly in the connection box and the curve in the Inlet extends into it.
  • the pressure drop in the distribution system can be influenced by the ratio of the opening and pipe cross sections, which is particularly important for refrigerant evaporators. For this reason, the openings can be designed as a throttle.
  • connection box is pressed onto the partitions of the distribution or collecting device by a radially inward deformation.
  • FIG. 1 shows a heat exchanger 1 serving as a radiator for a motor vehicle, which essentially comprises a heat exchanger block 2 consisting of tubes 3 and ribs 4 running transversely thereto, as well as an upper connection box 5 and a lower connection box 6.
  • the upper connection box 5 and the lower connection box 6 are tubular, thus have cavities 5 'and 6' with a circular cross section, and are closed on one end by a plate 7 or plate 8.
  • the upper connection box 5 has five openings 9, each opening into one of the tubes 3.
  • the lower connection box 6 has five openings 10, to which the lower ends of the tubes 3 are connected.
  • the tubes 3 are soldered to the connection boxes 5 and 6.
  • connection box 5 there is a distribution device 11, which consists of a profile body which is star-shaped in cross section and coiled.
  • the star profile corresponds to the number of pipes 3 connected to the junction box 5, i.e. in the present case it is in the form of a five-pointed star.
  • both the connection boxes 5 and 6 and the distribution or collecting devices 11 and 12 consist of a metallic material.
  • Partition walls 13 and channels 14 located between them are formed by the distribution device 11 and each extend from the inlet 15 over the entire length of the distribution device 11.
  • One of the openings 9 is located in the area of one of the channels 14, so that the total amount of fluid flowing in the inlet 15 is evenly distributed over the channels 14 and thus also equally over the heat exchanger tubes 3.
  • the collecting device 12 In the lower connection box there is a collecting device 12, which is identical in its design to the distribution device 11.
  • the collecting device 12 thus has the same partition walls 13 and channels 14 located between them, an opening 10 in each case being in the region of one of the channels 14.
  • the partial streams flowing in the channels 14 combine in the outlet 16.
  • connection box 5 for one Evaporator shown, the tubes of the evaporator as in Figure 1 are provided with the reference numeral 3.
  • the connection box 5 is tubular and closed with a plate 7 at the end remote from the inlet 15.
  • a distribution device 11 which corresponds to that in FIG. 1
  • a flow distributor 17 which is derived from the Venturi nozzle and which is one of the number of channels 14 of the distribution device 11 has a corresponding number of outlet channels 18, each opening into one of the channels 14.
  • the flow distributor 17 arranged in front of the distribution device 11 ensures that even with inhomogeneous flow media in the inlet 15, the phases are evenly distributed over each of the channels 14.
  • FIG. 3 the section along the line III-III in Figure 2 is shown.
  • a distribution device 11 with a star-shaped cross section in the tubular connection box 5, with five partition walls 13 evenly distributed over the circumference protruding up to the inner wall of the connection box 5 and resting there in a sealing manner.
  • the channel 14 directed vertically downward in FIG. 3 is located above the opening 9 in the connection box 5, to which the heat exchanger tube 3 is fastened.
  • FIG. 4 shows an embodiment variant of the terminal box 5 shown in FIG. 2.
  • the connection box 5 has five openings 19-23, which are of different sizes, whereby. the opening 19 closest to the flow distributor 17 has the smallest cross-section and the opening 23 most distant from the flow distributor 17 has the largest cross-section. This measure compensates for differences in the pressure drop in the individual channels 14 due to the different distance between the individual openings 19-23 and the flow distributor 17.
  • FIG. 5 shows a tubular connection box 24 made of plastic, which is provided on one side with a fluid inlet 27 and on the other side with a fluid outlet 28.
  • the cross section of the flow center inlet 27 is somewhat smaller than the cross section of the cavity 24 ′ in the connection box 24, as a result of which a shoulder 25 is formed at the end of the inlet.
  • This profile body 29, like the junction box 24, is made of plastic.
  • the profile body has ten partition walls 34 arranged in a star shape, a channel 35 or 35 ′ being formed between each two partition walls 34.
  • the collecting and distributing device 29 On the side facing the inlet 27, the collecting and distributing device 29 has an end plate 30 which covers every second channel 35 ′ and enables the fluid to pass into the other channels 35 through corresponding openings 32.
  • the end plate 31 is provided with openings 33 so that the channels 35 ′, which are covered by the end plate 30, are connected to the outlet 28.
  • the distribution and collecting device 29 is fixed in position on the one hand by the shoulder 25 and on the other hand by a locking ring 26.
  • the flow path of the fluid is indicated by arrows 36.
  • 37 and 38 designate pipe connection pieces which engage in the ends of heat exchanger pipes 3, which are not shown in FIG.
  • FIG. 6 shows the section along the line VI-VI in FIG. 5.
  • the collecting and distributing device 29 consists of a star-shaped profile body which has ten partition walls 34 and channels 35, 35 'located between them.
  • the connection piece 37 is connected via an opening 40 to one of the channels 35 and the connection piece 38 via an opening 39 to one of the channels 35 '.
  • the outer end of the partition walls 34 lies against the inner wall of the tubular shaped connection box 24 and, if this should be necessary for certain applications, can additionally be sealed, for example by an adhesive.
  • Figure 8 shows the connection box 24 with molded pipe connection piece 37 and 38 from the outside. On the left side of the connection box 24 in the drawing, this has a shoulder 25 at the transition to the inlet 27. The outlet 28 is located on the right-hand side of the connection box 24 in the drawing.
  • the connection box 24 Corresponding to the number of channels of the collection and distribution device shown in FIGS. 5 and 6, the connection box 24 has five pipe connection pieces 37 connected to the distribution channels 35 and five with the Collecting channels 35 'in connection pipe connection piece 38.
  • the pipes of the heat exchanger block can be fastened to the pipe connection stubs 37 and 38, for example by connecting means as described in DE-OS 3126030.
  • FIG. 9 shows a part of a connection box 5 with a distribution device 11 arranged therein, the distribution device 11 having partitions 13 and channels 14 and 5 openings 9 in the connection box for connecting the Heat exchanger tubes 3 with the channels 14 are present.
  • the connection box 5 facing the inlet 15 On the side of the connection box 5 facing the inlet 15, the latter has a conical taper 41 which merges into the inlet 15.
  • the distribution device 11 On the side facing the inlet 15, the distribution device 11 has an integrally formed cone 42, the cone angle corresponding to the conical taper 41 and the cone 42 abutting against it. Due to the conical design of the inlet end of the distributor 11, the flow resistance that the distributor 11 would have without the cone 42 is significantly reduced.
  • FIG. 10 shows a part of a connection box 5, the distribution device 11 and the openings 9, the tubes 3 and fins 4 corresponding to the embodiment according to FIG. 1.
  • An approximately bell-shaped transition to the inlet 15 having a substantially smaller cross section is formed on the connection box 5 on the side adjacent to the inlet 15.
  • a baffle plate 45 is fastened to the end face of the distribution device 11 adjacent to the inlet 15 and has an edge 46 directed towards the bell-shaped transition 43, which is at a sufficient distance from the inner circumferential surface of the connection box 5 for the passage of the fluid.
  • a swirl chamber 44 is formed between the baffle plate 45 and the bell-shaped transition 43.
  • a nozzle 54 is provided in the inlet 15 adjacent to the bell-shaped transition 43 and is formed by a corresponding deformation of the inlet pipe.
  • Such a measure is useful, for example, for evaporators so that a wet steam mixture that is as homogeneous as possible is generated before the partial flows are divided in the swirl chamber.
  • a wet steam mixture that is as homogeneous as possible is generated before the partial flows are divided in the swirl chamber.
  • FIG. 11 shows a section along the line XI-XI in FIG. 10. It is clear from this view that there is still a sufficient distance between the edge 46 of the baffle plate 45 and the inner wall of the connection box 5 for the fluid to pass into the distribution channels 14 .
  • FIG. 12 shows a connection box 47 which is arranged on a heat exchanger block 2 and has a part 48 which is angled at an angle of 90 ° and which merges into the inlet 15.
  • the end of the connection box 47 which has a hollow space 47 ′ with a circular cross section, is closed with a plate 49.
  • a distribution device 50 which consists of a star-shaped profile body.
  • the distribution device 50 has the cross-sectional shape of a four-pointed star corresponding to the number of openings 53 in the connection box 47, to which the tubes of the heat exchanger block 2 are connected.
  • the spiral distribution device thus has four spiral partition walls 51 and channels 52 located between them.
  • the distribution device 50 is introduced into the connection box before the part 48 of the connection box 47 is bent, that is to say in the extended state, and then the part 48 is bent with the distribution device 50 located therein.
  • the partition walls 51 are deformed evenly in the region of the bend , of course a compression occurs on the inner radius and an expansion occurs on the outer radius, but no significant change in the cross sections of the channels 52 occurs.
  • connection boxes and the distribution or collection devices can be made of metal or plastic. It is also possible to combine parts of different materials, i.e. plastic with metal. Depending on the application, different requirements can be placed on the tightness of the individual channels. Thus, when using the subject matter of the invention in a radiator or radiator of a motor vehicle, a slight leakage is possible completely without any effects on the function of the distribution device. A very good seal can also be achieved by pressing a plastic distributor or collector into a metal connection box. Finally, in certain cases, an additional seal can be provided by an adhesive between the ends of the partition walls and the inner wall of the connection box. To fix the distribution or collecting device, in particular with regard to an anti-rotation device, it is particularly advantageous to fasten the distribution or collecting device in the connection box by radially inward deformation of the connection box.

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (18)

1. Echangeur de chaleur constitué par un faisceau comportant plusieurs tubes en parallèle et des ailettes perpendiculaires à ces derniers, et au moins un boîtier de raccordement dans lequel débouchent les tubes, réalisé sous forme d'une cavité de section circulaire et contenant un répartiteur, ledit échangeur de chaleur étant caractérisé en ce que le répartiteur (11, 50, 54) est constitué par un corps profilé hélicoïdal de section étoilée et dont les ailettes formant des cloisons (13, 34, 51, 56) s'appliquent avec étanchéité sur la paroi de la cavité (5', 24', 47'), de façon à former plusieurs canaux hélicoïdaux (14, 35, 52, 57) avec une extrémité ouverte et une extrémité fermée; et un orifice (9, 19-23, 39, 53) est prévu dans la zone de chaque canal (14, 35, 52, 57) pour le passage du fluide du boîtier de raccordement (5, 24, 47) dans les tubes (3) ou inversement.
2. Echangeur de chaleur selon revendication 1, caractérisé par un second boîtier de raccordement (6) contenant un collecteur (12) constitué par un corps profilé hélicoïdal de même forme que le répartiteur (11) du premier boîtier de raccordement (5).
3. Echangeur de chaleur selon revendication 1, caractérisé en ce que le coffret de raccordement (24) contient un répartiteur-collecteur (29) constitué par un corps profilé commun; et un même nombre de canaux répartiteurs (35) et de canaux collecteurs (35') se trouve entre les cloisons (34).
4. Echangeur de chaleur selon revendication 3, caractérisé en ce qu'une extrémité du répartiteur-collecteur (29) porte une entrée (27) et l'autre extrémité une sortie (28); et les canaux collecteurs (35') sont obturés par un flasque (30) du côté du corps profilé en regard de l'entrée (27) et les canaux répartiteurs (35) sont obturés par un flasque (31 ) du côté en regard de la sortie (28).
5. Echangeur de chaleur selon une quelconque des revendications 1 à 3, caractérisé en ce qu'un distributeur (17), comportant un nombre de canaux sortis (18) égal à celui des canaux (14) du répartiteur (11), est disposé sur le côté du corps profilé voisin de l'entrée (15).
6. Echangeur de chaleur selon revendication 1, caractérisé en ce que les orifices (19-23) du boîtier de raccordement (5) sont de taille différente, l'orifice (19) le plus proche de l'entrée (15) présentant la section minimale et l'orifice (23) le plus éloigné de l'entrée (15) présentant la section maximale.
7. Echangeur de chaleur selon une quelconque des revendications 1 à 6, caractérisé en ce que le boîtier de raccordement (24) est réalisé en matière plastique et comprend des tubulures (37 et 38) moulées par injection pour le raccordement des tubes de l'échangeur de chaleur.
8. Echangeur de chaleur selon une quelconque des revendications 1 à 3, caractérisé en ce que le côté du répartiteur (11 ) en regard de l'entrée (15) est conique.
9. Echangeur de chaleur selon revendication 8, caractérisé en ce que le boîtier de raccordement (5) présente un rétrécissement coniqûe (41) qui se raccorde à l'entrée (15), l'angle au sommet du rétrécissement conique étant égal à celui du cône (42) et la partie de l'enveloppe du cône (42) voisine de sa face de base étant recouverte par le rétrécissement conique (41).
10. Echangeur de chaleur selon une quelconque des revendications 1 à 3, caractérisé en ce qu'une palette (45) est disposée avec une chambre de tourbillonnement (44) en amont sur le côté du répartiteur (11) voisin de l'entrée (15).
11. Echangeur de chaleur selon revendication 10, caractérisé en ce que la palette (45) présente un rebord- (46) dirigé dans la chambre de tourbillonnement (44).
12. Echangeur de chaleur selon une quelconque des revendications 1 à 11, caractérisé en ce que le boîtier de raccordement (47) présente une partie (48) coudée et le répartiteur (50) s'étend également dans le boîtier de raccordement (47) et la partie coudée (48).
13. Echangeur de chaleur selon une quelconque des revendications 1 à 3, et 5 à 12, caractérisé en ce que l'extrémité du boîtier de raccordement (5, 6, 47) éloignée de l'entrée (15) ou de la sortie (16) est obturée par un flasque (7, 8, 49).
14. Echangeur de chaleur selon revendication 1, caractérisé en ce que les orifices (9), sont réalisés sous forme d'étrangleurs.
15. Echangeur de chaleur selon une quelconque des revendications 1 à 14, caractérisé par un adhésif entre les cloisons (13, 34, 51, 56) et la paroi de la cavité (5', 6', 24', 47').
16. Echangeur de chaleur selon une quelconque des revendications 1 à 15, caractérisé en ce que le répartiteur ou le collecteur (11, 12, 29, 50, 54) est fixé et bloqué en rotation dans le boîtier de raccordement (5, 6, 24, 47) par une déformation de ce dernier dirigée radialement vers l'intérieur.
17. Echangeur de chaleur selon revendication 10, caractérisé par une buse (54) disposée dans l'entrée (15), en amont de la chambre de tourbillonnement.
18. Echangeur de chaleur selon revendication 17, caractérisé en ce que la palette (45) et la buse (54) sont réalisées dans un matériau résistant à la cavitation.
EP84101903A 1983-03-30 1984-02-23 Echangeur de chaleur Expired EP0121079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3311579A DE3311579C2 (de) 1983-03-30 1983-03-30 Wärmetauscher
DE3311579 1983-03-30

Publications (2)

Publication Number Publication Date
EP0121079A1 EP0121079A1 (fr) 1984-10-10
EP0121079B1 true EP0121079B1 (fr) 1986-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101903A Expired EP0121079B1 (fr) 1983-03-30 1984-02-23 Echangeur de chaleur

Country Status (4)

Country Link
US (1) US4524823A (fr)
EP (1) EP0121079B1 (fr)
DE (2) DE3311579C2 (fr)
ES (1) ES286088Y (fr)

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US4524823A (en) 1985-06-25
EP0121079A1 (fr) 1984-10-10
DE3460027D1 (en) 1986-03-13
DE3311579C2 (de) 1985-10-03
ES286088U (es) 1985-11-01
DE3311579A1 (de) 1984-10-11
ES286088Y (es) 1986-06-01

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