FR2628830A1 - Heat exchanger diffusor unit - has vane shaft inside tube which allows liq. or gas to be collected or diffused and provides mounting for coupling - Google Patents

Abstract

A diffusor unit for a heat exchanger, designed to improve the transfer of heat between a liquid/gas and an exchanger surface, comprises a vane (42) which has its rear edge facing towards a coupling (6) for a tube (2) surrounding its shaft (3). The tube permits the circulation of the liquid/gas to allow its collection or diffusion as well as the mounting of the coupling. The vane can also be equipped with channels (CE2,CR2) along its edges to guide the flow, and the vane and its housing can be cylindrical in shape or conical with an angle of taper of 15-45 degrees. ADVANTAGE - improved performance.

Description

(FRENCH REPUBLIC Publication No. 2,628,830 (to be used only for

  THE NATIONAL INSTITUTE REPRODUCTIVE ORDERS) OF THE PROPERTY: INDUSTRIAL INDUSTRIAL PROPERTY G e n National Registration: 88 03666 PARIS

) Int Cl4: F 28 F 5/04.

@ APPLICATION FOR PATENT OF INVENTION A1

  Date Date of deposit: 18 March 1988. (D) Applicant (s) BEUGRAS Hervé Marc. - FR.

) Priority

  @ Inventor (s): Hervé Marc Beugras.

  Date of the public availability of the

  application: BOPI "Patents" No. 38 of 22 September 1989.

  () References to other national documents appearing

  : () Holder (s): (Representative (s)

  (5) Diffuser device for cross-flow exchange circuit with a mobile or fixed exchange wall.

  (The invention relates to a device which allows, when an annular wall, conical or frustoconical is subjected to

  rotation, the improvement of the heat exchange

  nomic. The latter can also apply to the case of a 2

  annular wall subjected to a translation movement.

  Referring to the figure, case of a conical wall subject to

  the rotation, the cone 21 is driven by the flange-flange axis 2.

  An injector tube 3 allows the exchange medium to be fed to I. ra; qtravers dv broadcast 42 mobile or not. A diffusion cone 5 allows radial distribution. The annular distribution is urged by the pieces 21 and 42: the return is

  I provided by the peripheral portion of the flange-flange axis 2.

  O C N IL D Sale of the slips to the NATIONAL PRIMERIE, 27, rue de la Convention - 75732 PARIS CEDEX 15

I 26288-30

  The subject of the present invention is, as a new industrial product, a device which makes it possible to improve the thermal exchange between a fluid or a gas and an exchange surface driven by a translational or rotational movement. is similar to S a radial diffuser for annular peripheral distribution of the exchange element, this ensuring: - maintaining the peripheral speed of the exchange element; - the limitation of the film effect of &: * the roughness of the surfaces; * the viscosity of the exchange element; centrifugal force and centriped force; (The latter is often the cause of local corrosion overheating). - The decrease of the debits of the exchange element; - The limitation of particular resistance to flow with a

  reduction of the Carnot-Bordas effect.

  At present, certain industrial processes use annular parts that are rotated and brought to high temperatures. The cooling method used consists in filling the recessed parts with a high rate of hourly renewal, without reducing the temperature gradients in the material. which has the effect of premature deterioration of the characteristics of the material on the one hand and on the other hand dilation constraints which cause shear stresses at the level of the critical network (taps).

  quenching for steels: fractures with cracks).

  The device, object of the present invention, is remarkable in that it comprises a set of parts adaptable to different forms of surfaces that can be used for heat exchange. On the other hand the method of assembly of the different parts allows either the fixed mounting of

  0 the dawn of distribution, or the mobile assembly of the latter.

  The combination of the above mentioned particularities allows for indicative and not limiting to mention various application cases: annular piece subjected to a movement of: - rotation: assembly of the distribution blade: case i: .fixe case 2: mobile in rotation - translation: assembly of the distribution vane with

2 2628830

  front and rear flaps and injection parts: case 1: fixed assembly in rotation;

mobile in translation.

  case 2: moving assembly in rotation and translation. - frustoconical annular piece subjected to a movement of: - rotation: assembly of the distribution vane: case 1: fixed case 2: mobile in rotation - conical part subjected to a movement of: - rotation: assembly of the vane of distribution : case 1: fixed case 2: mobile in rotation - fixed annular part: assembly of the distribution vane with front and rear flanges and injection parts: case 1: set fixed in rotation;

mobile in translation.

case 2: mobile assembly in

rotation and translation.

  case r: moving assembly in rotation and

fixed in translation.

  - fixed frustoconical annular piece: assembly of the distribution blade with front and rear flanges 23 and injection parts: case 1: fixed assembly in rotation;

case 2: moving assembly in rotation.

  - fixed conical part: assembly of the distribution blade with front and rear flanges and injection parts: case 1: fixed assembly in rotation;

  case 2: pmobile set in rotation.

  The set of injection parts is composed of: an amménagée diffusing vane of channels allowing a peripheral and radial distribution Z5 of the element exchange. This allowing according to the number of channels and their sections to ensure an optimum exchange between the parages of exchanges this element. The canals facing the rural parishes of Lc and Cd. ai., - a -M- WUlUtaiii i> _J -.-. ## EQU2 ## where: ## EQU1 ##

  % OC piC'M ri luuOCrc3 read c n m uc1-am'c. t a.

  -Tudu M-4) -> Ln.-C * --itu uru ric.c> i ** a-ic,:> *. iPi.L .-.,: Cr-I'du0e rMr0-c 4W'E pi 'i4 .-.' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' ''. ## EQU1 ## XE Ln0GiLCZCL-- 'O -.44 E, 1-1L niQI' u E

  This is the case of the EC-O-ECU.

  LOWCTE tulitE 6 flO .-. 4eM> -OteO.4Ldur- L-4CO11 MI C.-iU .. '1c "U l L ... a ...

  - 4 EL UIk. ## STR5 ## wherein: ## STR1 ## where: ## STR1 ## .-4L.- MiE> 13 ... WciE-> E 1- ci CE E

  Or. Mid,. ## STR5 ##

  uijr L t has 0. ' L-0 U-11EOL-. ## EQU1 ##, ## STR1 ##, ## STR1 ##, ## STR1 ## and ## STR1 ## to FIG. O Cc -M Ui <Uc-EaU EUC EL J.UU.E at 44k.cot O.G E1asCo. UrOi L C2

  EuifJW CL1 a. ## STR5 ##

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  GluID LU t L. USk., 3 L -O O CL I ta5EIO, .. U L0a 4 - .. c c, E i - 'k.-G> 1. '.0. E c O-. "

  -WW.L'WW - k. -tw: Us- + s: 1 - s r-.ux - Co.U t M- tuOt -.- o'aruaE MU -iii O OW k. k.

  ## STR2 ## The ac-CW44WE vucfat0. O d -

  O WOOIU * .0zzU0ai ID-S4Zk. WE-W Cr..CE4-c l-CL-t ..- c- friend 0. 4. c-. k. 0 C

  - 4Ok ULJ E aU-4 M -P 'k.0 1- "9 L: MM111W - -k. * Fc read 41.-i,: E..4ID zi CPE <' U E c u Oi a -

  Cuou, -., 0c.l. aEk ..- ao U ULi: WWII MM3 M: 1 .-. O u ± -04JW O -'- a E Er zi c ai '-

  EC,: ut, -.-. TlkU E ua n.-a O-, Ta0 .. "-, - cn'r.ft tc. U Irq zJ OC -4 -.>. H.-U: Wl.0 W 0.0 rl O 0'aGIucuta44.,: EE ..- ,: tl E ... -i. - ci ai Oc.En i "Ej [0, :: - W Wa ,,, k .-OE41 .. G is ,, -, :: [: 1: U 0 OSU OC M c - E - -, 0 f. oP tq - C:

  W.-i fa-. O. has given me CD-4, W. U.I.-t gd W 42k.Sc M-0E k.-. l-. C i ci O Eo - C> 0 r Ci., -

  O C> UniSU-. ## EQU1 ## where ## EQU1 ## where ## STR2 ## 4, u-3'-4 k.'C CU.u U 4 n 4. c 2 0 C ii 44, O- Ili CI. a 0O.Wk.E>> C.cW LE a. ## EQU1 ##, ## STR2 ## wherein: ## STR1 ## &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; 4, C-1, 01a, and 11,000,000. O '4 ..-- a-- ..>.> E- * W +, -. ## EQU1 ## ## STR1 ## ## STR2 ## ## STR2 ## On the basis of the present invention, there is shown in FIGS. : E "I uO k.k0.EtlE 'O k .. tg -I thread U CL E 1

  0EO> j Ci (j) i. ## STR5 ## wherein R 1. E1C Di.n to 0.].

  &Numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; &numsp; - -coco 'a-au E'U4nik WUOELa4 U1Si * 0EWCL' <UIi.InJ u: _l U.1 E: 3 EW 0. -t>

  OJ, -CU "O: a OcT, U.4 rol, -0'-rc4.Ma -IJ - r> c.i 'E -

  : M-E aUt 1 u I coU. ## EQU1 ## where: ## EQU1 ## 1 iW c E 'aCIruE' l k. ## STR1 ## wherein: ## STR5 ## E.A. -'acc 'm..L E .. -o, ru-, -m0101r G 1 E .- ..-. C. 0.1IL OJ DlaJ: E k.IU 13.0 J> 0] .4.U -, C l: 3 ".k. O4 u - -. ## STR2 ## ## STR1 ## ## STR1 ## ## STR2 ## ..4 ::: 1IE- UU ol ..-. 1 inCgI-H ai0 o wire. E r-, tm ::: J3ci *., IO] 0 j

1 L

1> t

  ## EQU1 ## where: ## STR1 ##

4 - 2628830

  - either with a flat surface for a fixed mounting on the mounting flange on the difusion vane or two 120-foot frames for mounting with

needle screws.

  - or with circlip grooves for a free mounting in

rotation and locked in translation.

  Whatever the assembly, it is very important to ensure a locking in translation of the injection tube to avoid a decrease

  or an obstruction of the exchange circuit. In the case of an active dawn

  born in rotation, for example, it is possible to have a room

  unique constitating the injection-dye diffusion tube system.

  At the exit of the tube a cone will be realized in order to limit the

  special resistances to the flow.

  * The machining tolerances of the mounting flange will take into account the sealing mode (fixed mounting: - total sealing, free installation: rotating seal), the centering of the latter will be realized by its outside diameter in the countersink of the Diffusion vane.The fixing of this flange will be ensured by screws with embedded head so as not to decrease the section of the rear circuit serving either the return or the injection. The threads in the diffusion vane will be made blind so as to to overcome the problems of sealing between the front and rear circuits.In the case of a rotational locking provided by a flat on the injection tube, the plate used for blocking will be mounted in a countersink on the back side of this flange.The heads of the fixing screws will be drowned and the

  tapping in the flange will be blind.

  * flange front flange: - belonging to the room requiring a heat exchange, these walls will increase the exchange surface.In this case the method of attachment will take into account the embodiments and maintainability: + flange type mounting flange: screw fixing + flange mounting: weld fixing belonging to the injecton aube-tube system;

  ensured by screws on the dawn of diffusion.

  a flange back flange: - belonging to the room requiring a heat exchange, these words will increase the exchange surface.In this case the

26288.30

  Fixing method will take into account the modes of realization and the maintainability: + assembly flange type flange: fastening by screws + mounting in flange: fixing by welding - belonging to the system dawn-tube of injecton; the fixation will be ensured

by screw on the dawn of diffusion.

  Two embodiments of the invention are described below C indicative and in no way limitative with reference to the accompanying drawings. FIG. 1 is a sectional front view of an annular piece 10 rotated by a flange flange pin 2. FIG. 2 is a sectional front view of a conical piece 20 driven in rotation by an axis flange flange 2.In the flange flange axis, a central injector tube 3 allows injection, for example, the exchange element.The diffusion vanes 41 and 42 are respectively fixed on the exchange walls 11 and 21.The injector tube 3 passes through the latter through the flange flange 6 which allows s - the maintenance of the injector tube in position relative to the diffusion cone 5: locking in translation provided by 2 circlips 7; mounted in

throat on piece 3.

  - Sealing between the injection and return circuit by compressing a radial friction sealing ring 8, on the diffusion vane.In order to increase the efficiency of this ring S, an O-ring 9 is mounted just before: centering the injector tube in

the broadcast dawn 41 or 42.

  The element arriving via the injector tube 3 blossoms on the diffusion cone 5, imprints the frontal channels CFI and CF2.The latter direct this exchange element towards the exchange channels CE1 and CE2. the channels CR1 and CR2 up to the counterbore of the diffusion vane facing the flange axis 2;

collection and evacuation.

  it is understood that the present invention is not limited to the embodiments described and shown but they are only examples to which many modifications can be made without departing from the present invention.

2628830.

Claims (1)

CLAIMS I Device characterized in that the diffusion vane (41 OR 42) ensures the circulation of the fluid or the exchange gas along the exchange wall through the equidistance of the surfaces of the dawn and the so-called exchange. 2 Device according to claim 1, characterized in that the diffusion vane (41 or 42) has on the rear part a counterbore flage to the flange axis 2, allowing the collection or diffusion of the fluid or a gas of exchange and the mounting of the flange 6. 3 Device according to claim 2, characterized in that the rear part of the blade (41 or 42) is equipped or no channels (CRI or CR2) that can be steered following the angle or (+ 7/2) or be curvilinear or concentric but in any case ending in the aforementioned counterbeam. 4 Device according to claim 3, characterized in that the diffusion vane (41 or 42) has or not on its peripheral portion of the circulation channels, (CEI or CE2) can be orientated according to the angle e or (e + 7/2) or be curvilinear or parallel to the generators or concentric. Device according to claim 4, characterized in that the front part of the blade (41 or 42) is equipped or not with channels (CF1 or CF2) which can be steered according to the angle 5 or (Q + 7/2) or 'to be curvilinear or concentric but in any case terminating on the diffusion cone. 6 Device according to claim 5, characterized in that the diffusion vane (41 or 42) has at the front, a central diffusion inner cone having an angle C such that: 15a. (1 45 [.The minimum value of this angle, as a function of the frontal height, will be retained so as to limit the particular resistance to flow. 7 Device according to claim 6, characterized in that in the axis of the cane inside the diffusion vane (41 or 42), a cone 5 serving for radial diffusion is mounted so as to keep the hydraulic section constant at all points and to limit the particular resistance to the flow. The last one will therefore be determined by the section of the injector tube 3 and the volume flow rate of the fluid or the exchange gas.8 Apparatus according to claim 7, characterized in that the injector tube 3 of the fluid or of the exchange gas has its end machined in 26288.30 internal cone at the same angle as that of the diffusion cone 5 to limit the particular resistance to flow 9 Device according to claim 8, characterized in that the injector tube 3 is maintained in Position facing the diffusion cone 5, either by a fixed mounting or by a free mounting in rotation and locked in translation. Device according to claim 9, characterized in that the injector tube 3 has machining for mounting a locking and positioning device on the flange flange 6. 11 Device according to claim 1i, characterized in that the flange flange 6 has machining operations allowing, on the one hand, the positioning of the injector tube 3, on the other hand the mounting of a radial friction sealing ring in order to ensure a seal between the injection circuit and the return circuit. . 12 Device according to claim 11, characterized in that the flange flange 6 is mounted fitted on its outer diameter in the diffusion vane 41 or 42 to ensure the central positioning.du injector tube. 13 Device according to claim 12, characterized in that the flange flange 6 has a machining on the central bore; for the passage of the injector tube, allowing the mounting of a seal. 14 Device according to claim 13, characterized in that the diffusion vane 41 or 42 has a machining on the central bore; for the passage of the injector tube, allowing the mounting of a seal. 1 / X1 FIG. 1 CIS 11 \ _ __ ÄJ \, \\\ S 'm; A I G /// 5 4 -X CRI ____CFI '-, v. V "D Ii - ::, ---- Z O ú / Z 919 3/11 F IGiG. 5 Detail details: 3-41 - 6 41 4 / X / g 7 ô cri I. I. Q Q Q Q Q Q Q 4 4 4. Piece 44 seen at 6/41 FIG. 6 Piece 41 VUe following B r /, / t '"', 7/11 FIG 7 Piece 42 view uv C 8 / He FIG.8 P'ice 4 'view next D /> k, / / t./ - \ 9/141 IG.9 Time 41 follow up E HL Ik 1% - __1 / 41 Piice 42 Next View F FIG.1O L! FIG. '14 Piece E- view sUlv'an Q FI G. 12 Pi ce .. 6 view sui var7É H.