EP1543882B1 - Buse à jet conique - Google Patents

Buse à jet conique Download PDF

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Publication number
EP1543882B1
EP1543882B1 EP04027028A EP04027028A EP1543882B1 EP 1543882 B1 EP1543882 B1 EP 1543882B1 EP 04027028 A EP04027028 A EP 04027028A EP 04027028 A EP04027028 A EP 04027028A EP 1543882 B1 EP1543882 B1 EP 1543882B1
Authority
EP
European Patent Office
Prior art keywords
swirl chamber
conical
swirl
end wall
nozzle
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.)
Not-in-force
Application number
EP04027028A
Other languages
German (de)
English (en)
Other versions
EP1543882A3 (fr
EP1543882A2 (fr
Inventor
Albert Fecht
Lars Vater
Jürgen Frick
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.)
Lechler GmbH
Original Assignee
Lechler GmbH
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 Lechler GmbH filed Critical Lechler GmbH
Publication of EP1543882A2 publication Critical patent/EP1543882A2/fr
Publication of EP1543882A3 publication Critical patent/EP1543882A3/fr
Application granted granted Critical
Publication of EP1543882B1 publication Critical patent/EP1543882B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis

Definitions

  • the invention relates to a conical nozzle having a nozzle body with a swirl space, an inlet bore arranged in a side wall of the swirl space, and an outlet bore arranged in a first end wall of the swirl space.
  • a supply line is aligned with an inlet bore, which opens tangentially into a circular cylindrical swirl space.
  • a lid of the swirl space has a plurality of protrusions to influence a circulation speed of the flow in the nozzle.
  • a spray-drying nozzle which has a circular-cylindrical swirl space, wherein an inlet bore opens into the peripheral wall of the swirl space.
  • An exit bore is arranged in a first end wall of the swirl space.
  • the swirl space is surrounded by an annulus via which the inlet bore is fed with medium to be sprayed.
  • the annulus is fed via an axial connection.
  • an adjustable scattering nozzle in which liquid to be sprayed is introduced tangentially into a swirling space.
  • a spraying direction is perpendicular to a connection direction in which a connection flange is aligned and onto which a supply line is screwed.
  • the swirl space is conically tapered in the direction of an outlet opening and into the swirl space extends into a conical projection which is provided with two circumferential grooves on its circumference.
  • the conical projection is partially against an inner wall of the likewise conical swirl space, so that two closed flow channels are formed by means of the two circumferential grooves on the projection, which must inevitably pass through the liquid flowing into the swirl space.
  • the European disclosure EP 0 561 697 A1 shows a spray nozzle with a conically tapered swirl space into which a matching, also cone-shaped insert is inserted.
  • the conical insert has a circumferential groove tapering towards the cone tip. The conical insert abuts in sections on an inner wall of the swirl space, so that liquid fed into the nozzle must forcibly pass through the closed flow channel formed by the groove on the conical insert and the inner wall of the swirl space.
  • the British patent GB 1 362 317 describes a fluid nozzle intended for use in public showers.
  • the nozzle mouthpiece has a cylindrical swirl space, is fed into the liquid tangentially.
  • a two-stage, cone-shaped extension of the outlet bore is provided.
  • a first conical region, which adjoins the swirl chamber, has a first cone angle
  • the second conical region adjoining the first conical region has a smaller cone angle than the first conical region.
  • the second cone area is additionally provided with longitudinal grooves provided in the spraying direction on its inner wall.
  • a conical nozzle with a nozzle body having a swirl space, an inlet bore arranged in a side wall of the swirl space and an outlet bore arranged in a first end wall of the swirl space is provided for this purpose, in which a rotationally symmetrical projection or projection is provided on a second end wall of the swirl space opposite the first end wall is arranged rotationally symmetrical recess and in which in the first end wall at least two blind holes are arranged adjacent to the outlet bore.
  • Both the rotationally symmetrical projection or the rotationally symmetrical recess in the second end wall and the blind holes in the first end wall can be produced in a relatively simple manner.
  • the first end wall is conical and tapers in the direction of the outlet bore.
  • the invention provides a particularly advantageous and easily manufactured nozzle for producing a full cone jet.
  • annular space communicating with the inlet bore and surrounding the nozzle body in the area of the inlet bore is provided.
  • the nozzle according to the invention has the advantages of a little congestion-sensitive conical nozzle with lateral connection, since no internals must be provided within the swirl space, which favor a blockage. Nevertheless, the conical nozzle according to the invention can be connected axially and thus requires only a relatively small installation space.
  • the conical nozzle according to the invention is characterized in a special way suitable for use in the secondary cooling of billet casting plants. In particular, the conical nozzle according to the invention can be replaced by a simple adapter against conventional axial full-cone nozzles.
  • the projection is circular-cylindrical.
  • Such a design of the projection is, for example, as a turned part, easy to produce.
  • a ratio of the size of the inlet bore to the size of the outlet bore may be between about 1: 1 to a maximum of 1: 1.5 in the conical nozzle according to the invention.
  • the ratio of the size of the inlet bore to the swirl diameter can be greater than 1: 1.5 and a ratio of the inlet bore to the annular gap of the inlet can be 1: x, x> 1.
  • the at least two blind holes are circular-cylindrical.
  • the at least two blind holes in the region of the outlet bore merge into one another.
  • the center axes of the blind holes and the outlet holes lie in a common plane.
  • an eight-shaped recess is formed in the end wall, in the center of which the outlet bore is arranged. This creates an outflow area that ensures the creation of a uniform spray pattern.
  • a respective peripheral wall of the at least two blind holes is aligned in the region of a cutting line with the peripheral wall of the swirl chamber, wherein the section line through the intersection of a plane passing through the center axes of the respective blind bore and the swirl chamber level with the peripheral wall of the swirl chamber and the peripheral wall of the respective Blind hole is defined.
  • a groove or a projection may be arranged on the tapered projection.
  • the conical nozzle according to the invention can have a circular-cylindrical swirl chamber with rotationally symmetrical and, in particular, planar end walls and is thereby easy to produce, at least in the region of the swirl chamber. Due to the tapered projection on the second end wall, a desired rotational speed of the flow in the swirl chamber is set.
  • annular space communicating with the inlet bore and surrounding the nozzle body in the area of the inlet bore is provided.
  • the conical nozzle according to the invention can be used for an axial connection.
  • the flow guide surface is configured as a groove running around the conical projection several times and inclined to a central longitudinal axis of the conical projection.
  • a circulating flow velocity can be adjusted in the swirl space, whereby the spray pattern of the conical nozzle according to the invention can be influenced.
  • Such a conical nozzle is particularly insensitive to contamination, since the exit bore expands starting from the swirl space and thus the swirl space itself can not become clogged.
  • the swirl space can be formed, for example, circular cylindrical.
  • annular space communicating with the inlet bore and surrounding the nozzle body in the area of the inlet bore is provided.
  • the conical nozzle according to the invention is suitable for an axial connection.
  • the nozzle body is integrally formed.
  • the conical nozzle according to the invention Since the outlet bore widens conically starting from the swirl space, the conical nozzle according to the invention has no undercut between the outlet bore and the swirl space and can therefore be inexpensively manufactured as a one-piece component.
  • FIG. 1 shows a full cone nozzle with axial connection with a nozzle body 10 and the nozzle body 10 partially surrounding connector 12.
  • the nozzle body 10 is constructed in two parts and has a nozzle mouthpiece 14 and a swirl chamber cover 16.
  • a swirl space 18 is provided, and in a first end wall of the swirl space 18, an outlet bore 20 is arranged.
  • a second, the first end wall opposite end wall of the swirl chamber 18 is formed by the swirl chamber cover 16.
  • the swirl chamber 18 is formed circular-cylindrical and an inlet bore 22 opens in the region of the side wall of the swirl chamber 18 in the swirl chamber 18.
  • the inlet bore 22 is in the view of Fig. 1 in and of itself not recognizable and therefore shown only dashed.
  • the nozzle mouthpiece 14 has at its front end in the region of the outlet bore 20 to a circumferential annular flange, on which a region with a reduced outer diameter and an external thread 24 connects.
  • the region with the external thread 24 is adjoined by an area with an even further reduced diameter, in which the inlet bore 22 is then arranged.
  • the nozzle mouthpiece 14 is thus stepped. With the external thread 24, the nozzle tip 14 is screwed into a front end of the fitting 12 and the annular flange of the nozzle tip 14 abuts an end face of the fitting 12 and thereby defines an installation position of the nozzle tip 14.
  • the fitting 12 has an axial starting from its front end Bore 26 which carries in its front region an internal thread which engages with the external thread 24 of the nozzle orifice 14.
  • An inner diameter of the axial bore 26 is larger than an outer diameter of the region of the nozzle orifice 14 in which the inlet bore 22 is arranged.
  • the inner diameter of the axial bore 26 is also larger than an outer diameter of the swirl chamber cover 16. Between the nozzle orifice 14 and the connecting piece 12, this results in the region of the inlet bore 22 an annular space. This annular space continues from the inlet bore 22 to the rear end of the swirl chamber cover 16.
  • the connecting piece 12 can thus be screwed axially onto a pipeline and requires only a small installation space in the radial direction.
  • the conical nozzle according to the invention still requires no blockage-prone swirl inserts, as provided in conventional axial full cone nozzles.
  • the free cross sections of the conical nozzle according to the invention are characterized by about 50% to 60% above the free cross sections of conventional axial full cone nozzles.
  • the conical nozzles according to the invention are thus much less susceptible to blockage than conventional axial full cone nozzles. Compared to conventional full cone nozzles with tangential connection, the conical nozzles according to the invention require a considerably smaller installation space.
  • a satisfactory spray pattern including a desired velocity distribution in a full cone produced by the nozzle according to the invention is adjusted firstly via a ratio of the size of the inlet bore 22 to the size of the outlet bore 20, which may be in a range from 1: 1 to at most 1: 1.5 ,
  • a ratio of the inlet bore to the swirl diameter should be considered, which can be greater than about 1: 1.5.
  • a size of the inlet bore to the size of the annular gap between the connector 12 and the nozzle body 14 may be 1: 1, but the annular gap can also be made larger than the inlet bore.
  • the arrangement of the inlet bore 22 relative to a central axis 28 of the swirl chamber 18 of importance, which will be explained below.
  • the swirl chamber cover 16 has at its, the swirl chamber 18 side facing a circular cylindrical Projection 30 which is arranged concentrically to the central axis 28.
  • the first end wall of the swirl space 18, which merges into the outlet bore 20, is tapered on the one hand and tapering in the direction of the outlet bore 20 and, moreover, two blind holes 32 are arranged in the first end wall, which will be explained in more detail below.
  • FIG. 2 shows the swirl chamber lid 16 of Fig. 1 ,
  • the swirl chamber cover 16 is provided with the circular cylindrical projection 30, which extends from a flat end face 34.
  • a circular cylindrical section with an external thread 36 connects to the end face 34.
  • Adjoining the external thread 36 is an annular sealing flange 38, which is followed by an outer circumferential region 40 designed in the manner of a hexagonal surface.
  • FIG. 3 shows an alternative swirl chamber cover 42.
  • the swirl chamber cover 42 differs from the swirl chamber cover 16 by the design of one, the swirl chamber 18 facing end surface 44, which forms the second, the outlet bore 20 opposite end wall of the swirl chamber 18.
  • the end face 44 is curved outwardly and thereby protrudes in the mounted state in the swirl chamber 18.
  • swirl chamber cover 46 differs from the swirl chamber cover 16 only by the design of its, in the assembled state the swirl chamber 18 facing end face 48.
  • the end face 48 is curved inwardly, so that created by the end face 48 a recess in the swirl chamber cover 46 becomes. In the assembled state, this depression thus expands the swirl space 18 in a direction away from the exit bore 20.
  • FIG. 5 shows the nozzle mouthpiece 14 of Fig. 1 in a view from diagonally behind. It can be seen that the inlet bore 22 is arranged off-center, so that the medium to be sprayed is introduced through the inlet bore 22 into the swirl chamber 18 such that a circulating flow is generated in the swirl chamber 18. Furthermore, it can be seen that the circumference of the first portion of the nozzle orifice 14, which is located on the side of the outlet bore 20, is multi-surface and designed in the manner of a hexagon nut, in order to screw the nozzle orifice 14 in the in Fig. 1 To allow shown connector 12.
  • FIG. 6 shows the nozzle mouthpiece 14 of Fig. 1 , where in the view of Fig. 6 on and for themselves unrecognizable elements are shown only in dashed lines.
  • the inlet bore 22 which is shown in dashed lines and the eccentric position of the swirl chamber 18 is clearly visible.
  • the inlet bore 22 opens into the swirl chamber 18 in such a way that a flow, although not eccentrically introduced, is not yet introduced tangentially into the circulation chamber 18.
  • the two blind holes 32 in the first end wall adjacent to the outlet bore 20 are arranged.
  • the two blind holes 32 are circular cylindrical, have the same dimensions and their central axes and the central axis of the outlet bore 20 lie in a common plane.
  • the blind holes 32 each have the inner circumferential wall of the swirling space 18 and overlap in the region of the outlet bore 20. Overall, an eight-shaped recess is formed by the two blind holes 32 in the first end wall of the swirl space 18, wherein the outlet bore 20 is arranged in the center of this eight-shaped recess of the two blind holes 32.
  • the two blind holes 32 serve to influence the rotational speed of the flow in the swirl space 18 and to form an exclusion area in the vicinity of the outlet bore 20.
  • Fig. 6 In the sectional view of Fig. 7 along the line XX the Fig. 6 is one of the blind holes 32 and their arrangement to the outlet bore 20 can be seen.
  • first end wall 50 of the swirl space 18 is conical and tapers in the direction of the outlet bore 20.
  • Circumferentially around the outlet bore 20 is in the, the swirl space 18 facing away from the end face of the nozzle mouthpiece 14, a circumferential and triangular in cross-section recess 52 is provided.
  • FIG. 9 shows a further preferred embodiment of the conical nozzle according to the invention for producing a full cone spray pattern, where in the representation of Fig. 9 only a nozzle orifice 54 is shown.
  • the nozzle mouthpiece 54 is intended for installation in a connection piece which is the connection piece 12 of the Fig. 1 equivalent.
  • a circular-cylindrical swirl space 56 without cross-sectional constriction merges into an outlet bore 58.
  • the outlet bore 58 widens conically, with a first conical region 60 being provided with a first conical angle relative to the circumferential wall of the swirling space 56 and a second conical region adjoining the first region 60, the second conical region 62 being opposite the circumferential wall the swirl space 56 occupies a larger angle. Accordingly, the outlet bore 58 widens in two stages starting from the swirl space 56 through the conical areas 60, 62.
  • An inlet bore 64 which is arranged centrally to the swirl space 56, opens into the circumferential wall of the swirl space 56, so that the center axes of the inlet bore 64 and the swirl space 56 intersect , One, the outlet bore 58 opposite the second end wall of the swirl chamber 56 is flat.
  • the nozzle mouthpiece 54 thereby has a particularly simple shape, which is very little susceptible to clogging.
  • a significant advantage of the nozzle tip 54 is that it can be made in one piece.
  • the nozzle mouthpiece 54 may be in the in the Fig. 1 be screwed shown connector.
  • FIG. 10 shows a swirl chamber cover 66, which is intended for insertion into a nozzle orifice 68, which in sectional view in the Fig. 11 is shown.
  • the swirl chamber cover 66 has on its, a swirl space 70 of the nozzle mouthpiece 68 facing end face on a conical projection 72 which has two parallel circumferential grooves 74 and 76 on a portion of its circumference.
  • An extension direction of the grooves 74, 76 is inclined with respect to a central axis 78 of the swirl chamber cover 66.
  • the cone-like Projection 72 with the grooves 74, 76 provides an adjustment of the rotational speed in the swirl chamber 70 to a level that makes a desired spray pattern possible.
  • an inlet bore 80 opens off-center into the swirl space 70, so that a circulating in the swirl space 70 flow is generated, the rotational speed is then controlled by the projection 72 of the swirl chamber cover 66.
  • the nozzle orifice 68 is intended for an axial full cone nozzle and is screwed into a fitting which corresponds to that in the Fig. 1 shown connector 12 corresponds.

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  • Nozzles (AREA)
  • Continuous Casting (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Stored Programmes (AREA)
  • Light Receiving Elements (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (13)

  1. Buse conique avec un corps de buse (10) avec une chambre de tourbillonnement (18), un orifice d'admission (22) disposé dans une paroi latérale de la chambre de tourbillonnement et un orifice de sortie (20) disposé dans une première paroi frontale de la chambre de tourbillonnement, caractérisée en ce que, sur une seconde paroi frontale de la chambre de tourbillonnement opposée à la première paroi frontale, est disposée une partie saillante (30) à symétrie de révolution ou un évidement (48) à symétrie de révolution, et qu'au moins deux trous borgnes (32) sont disposés dans la première paroi frontale à proximité de l'orifice de sortie.
  2. Buse conique selon la revendication 1, caractérisée en ce qu'est prévu un espace annulaire (18) relié à l'orifice d'admission (22) et entourant le corps de buse (10) dans la zone de l'orifice d'admission.
  3. Buse conique selon la revendication 1 ou 2, caractérisée en ce que la partie saillante (30) a une forme cylindrique circulaire.
  4. Buse conique selon l'une des revendications précédentes, caractérisée en ce que les au moins deux trous borgnes (32) ont une forme cylindrique circulaire.
  5. Buse conique selon l'une des revendications précédentes, caractérisée en ce que les au moins deux trous borgnes (32) se fondent l'un dans l'autre dans la zone de l'orifice de sortie (20).
  6. Buse conique selon la revendication 5, caractérisée en ce que les axes médians des trous borgnes (32) et de l'orifice de sortie (20) sont situés dans un plan commun.
  7. Buse conique selon l'une des revendications précédentes, caractérisée en ce qu'une paroi circonférentielle de chacun des au moins deux trous borgnes (32) est alignée avec la paroi circonférentielle de la chambre de tourbillonnement (18) au niveau d'une ligne de coupe (Y-Y) définie par l'intersection d'un plan passant par les axes médians de chaque trou borgne et de la chambre de tourbillonnement avec la paroi circonférentielle de la chambre de tourbillonnement et la paroi circonférentielle de chaque trou borgne.
  8. Buse conique avec un corps de buse avec une chambre de tourbillonnement, un orifice d'admission disposé dans une paroi latérale de la chambre de tourbillonnement et un orifice de sortie disposé dans une première paroi frontale de la chambre de tourbillonnement, sachant que, sur une seconde paroi frontale (66) de la chambre de tourbillonnement (70) opposée à la première paroi frontale, est disposée une partie saillante conique (72) se rétrécissant en direction de l'orifice de sortie, qui présente au moins sur une partie de sa surface au moins une surface directrice de flux entourant la partie saillante conique et s'étendant en direction de son extrémité rétrécie, caractérisée en ce que la partie saillante conique (72) fait librement saillie dans la chambre de tourbillonnement (70) et, vue dans le sens radial, est distante avec la totalité de sa surface périphérique d'une paroi intérieure de la chambre de tourbillonnement (70).
  9. Buse conique selon la revendication 8, caractérisée en ce qu'est prévu un espace annulaire relié à l'orifice d'admission (80) et entourant le corps de buse dans la zone de l'orifice d'admission.
  10. Buse conique selon la revendication 8 ou 9, caractérisée en ce que la surface directrice de flux est formée par une gorge (74) entourant plusieurs fois la partie saillante conique (72) et inclinée par rapport à un axe médian longitudinal de la partie saillante conique.
  11. Buse conique avec un corps de buse (54) avec une chambre de tourbillonnement (56), un orifice d'admission (64) disposé dans une paroi latérale de la chambre de tourbillonnement et un orifice de sortie (58) disposé dans une première paroi frontale de la chambre de tourbillonnement, caractérisée en ce qu'en partant de la chambre de tourbillonnement (56), l'orifice de sortie s'élargit en deux étages de manière conique sans réduction de section, sachant que sont prévues une première section conoïde (60) se raccordant à la chambre de tourbillonnement (56) avec un premier angle de cône par rapport à la paroi circonférentielle de la chambre de tourbillonnement (56), et une seconde section conoïde (62) se raccordant à la première section conoïde (60), la seconde section conoïde (62) faisant un second angle de cône supérieur au premier par rapport à la paroi circonférentielle de la chambre de tourbillonnement (56).
  12. Buse conique selon la revendication 11, caractérisée en ce qu'est prévu un espace annulaire (18) relié à l'orifice d'admission (64) et entourant le corps de buse dans la zone de l'orifice d'admission.
  13. Buse conique selon la revendication 11 ou 12, caractérisée en ce que le corps de buse (54) est formé d'une seule pièce.
EP04027028A 2003-12-17 2004-11-13 Buse à jet conique Not-in-force EP1543882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10361349A DE10361349B4 (de) 2003-12-17 2003-12-17 Kegeldüse
DE10361349 2003-12-17

Publications (3)

Publication Number Publication Date
EP1543882A2 EP1543882A2 (fr) 2005-06-22
EP1543882A3 EP1543882A3 (fr) 2006-07-05
EP1543882B1 true EP1543882B1 (fr) 2009-02-18

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ID=34485603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027028A Not-in-force EP1543882B1 (fr) 2003-12-17 2004-11-13 Buse à jet conique

Country Status (8)

Country Link
US (1) US7370815B2 (fr)
EP (1) EP1543882B1 (fr)
JP (1) JP4732747B2 (fr)
KR (1) KR20050061379A (fr)
CN (1) CN100335181C (fr)
AT (1) ATE422966T1 (fr)
BR (1) BRPI0405615A (fr)
DE (2) DE10361349B4 (fr)

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RU2486965C2 (ru) * 2011-04-01 2013-07-10 Николай Васильевич Барсуков Форсунка струйно-вихревая
US9452438B2 (en) * 2012-12-25 2016-09-27 Nippon Steel & Sumitomo Metal Corporation Full cone spray nozzle
KR101350489B1 (ko) * 2013-11-22 2014-01-15 하영대 엔지니어링 노즐을 적용한 연속분사식 응축수 배출기
AR101397A1 (es) 2014-08-06 2016-12-14 Johnson & Son Inc S C Inserto para pulverizadores
CN105081251B (zh) * 2015-09-24 2017-03-29 攀钢集团工程技术有限公司 扇形段喷嘴
DE202016105326U1 (de) 2016-09-23 2018-01-09 SWEDEX GmbH Industrieprodukte Drallkörper sowie Kegeldüse mit einem solchen Drallkörper
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Also Published As

Publication number Publication date
CN1640551A (zh) 2005-07-20
US7370815B2 (en) 2008-05-13
DE502004009006D1 (de) 2009-04-02
JP2005177751A (ja) 2005-07-07
DE10361349B4 (de) 2005-12-08
ATE422966T1 (de) 2009-03-15
KR20050061379A (ko) 2005-06-22
BRPI0405615A (pt) 2005-08-30
EP1543882A3 (fr) 2006-07-05
JP4732747B2 (ja) 2011-07-27
EP1543882A2 (fr) 2005-06-22
CN100335181C (zh) 2007-09-05
DE10361349A1 (de) 2005-07-14
US20050133628A1 (en) 2005-06-23

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