EP0365964B1 - Tuyau à jet - Google Patents

Tuyau à jet Download PDF

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Publication number
EP0365964B1
EP0365964B1 EP89119169A EP89119169A EP0365964B1 EP 0365964 B1 EP0365964 B1 EP 0365964B1 EP 89119169 A EP89119169 A EP 89119169A EP 89119169 A EP89119169 A EP 89119169A EP 0365964 B1 EP0365964 B1 EP 0365964B1
Authority
EP
European Patent Office
Prior art keywords
blast tube
section
tube according
input
blast
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 - Lifetime
Application number
EP89119169A
Other languages
German (de)
English (en)
Other versions
EP0365964A1 (fr
Inventor
Hans-Jürgen Dr. Heimhard
Manfred Bräuer
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.)
NORDAC NORDDEUTSCHES ALTLASTENSANIERUNGSCENTRUM GM
Original Assignee
Kloeckner Oecotec 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 Kloeckner Oecotec GmbH filed Critical Kloeckner Oecotec GmbH
Priority to AT89119169T priority Critical patent/ATE79163T1/de
Publication of EP0365964A1 publication Critical patent/EP0365964A1/fr
Application granted granted Critical
Publication of EP0365964B1 publication Critical patent/EP0365964B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
    • F04F5/12—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids of multi-stage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/467—Arrangements of nozzles with a plurality of nozzles arranged in series

Definitions

  • the invention relates to a jet pipe for singing a sand or end water mixture according to the preamble of patent claim 1.
  • Such a jet pipe is known from DE-PS 21 50 711.
  • the section adjoining the entrance and the conical pipe section are connected to one another by screws.
  • water under high pressure is fed in via the feed pipe and enters the pipe interior via the outlet openings in the direction of a conical jacket.
  • a sand or earth-water mixture is sucked in on the inlet side and passed through the water cone jacket.
  • a turbulence occurs, which leads to the conical section and the area having the outlet openings being subject to severe wear; Particularly when two such jet pipes are to be cascaded in series, an exchange of worn parts leads to considerable downtimes.
  • a multi-stage jet pump is known from DD 153 905, in which, however, the section following a diffuser is cylindrical or divergent. The individual steps can be connected to each other by screws.
  • a multi-stage jet pump is known from US Pat. No. 2,396,290, in which the sections adjoining the diffuser are designed to be divergent or cylindrical. Individual sections of the device can be connected to one another by screwing.
  • the object of the invention is to design such a jet pipe, in which the wearing parts are easy to replace.
  • the jet pipe should be designed so that the wear is additionally reduced.
  • the jet pipe 1 has a section 3 which can be connected to a supply line 2 for supplying a medium to be sucked in, a jet pipe housing 4 and a conical pipe section 5 which runs inside the latter.
  • the section 3 is designed as a ring 6. It has a feed connection 7 which can be connected to a line which supplies a pressurized fluid medium and in particular water. Furthermore, outlet nozzles 9 are provided on a surface 8 extending into the interior of the tube and inclined against the tube axis in the circumferential direction, the axes of which are oriented such that water emerging from them to a common axial point 10 flows inside the tube and thus forms a conical water jacket 11. The outlet nozzles and the supply nozzle are connected to one another via a channel 12 which extends in the ring in the circumferential direction.
  • the jet pipe housing 4 has a first connection 13 on the input side and an output connection 14 on the output side. Inside, the two nozzles are designed so that the conical tube section 5 can be inserted into the jet pipe housing 4 and is held coaxially by the two nozzles.
  • the ring 6 On the input side, the ring 6 is flanged coaxially by means of screws via a second annular flange 15 to be fitted on the outside.
  • the feed line is connected to section 3 via a further flange 16.
  • the outlet-side flange 14 of the jet pipe section 16 arranged in front of it serves to mount the ring 6 belonging to the jet pipe section 17.
  • the conical tube section 5 is designed such that its end 24 on the outlet side extends so far into section 3 of the subsequent jet tube section that the outlet nozzles 9 are covered as seen in a radial projection. This prevents the nozzles from being ground down and destroyed by the material passed through them.
  • a corresponding ring insert not shown, corresponding in shape to the end of the conical pipe section, is used, which covers the nozzles there. It is also possible instead to have the end of the feed line 2 protruding into the interior so far that the material sucked in does not swirl directly past the nozzles.
  • the jet pipe comprises a guide frame 18 with two side rails.
  • the jet pipe housing and the ring 6 have pairs of wheels 21, 22; 23 on. With the help of these pairs of wheels, it is possible, in order to replace a conical tube section 5, to simply move the ring 6 away after loosening flange screws and to remove and replace the tube section 5. In the same way, maintenance work can optionally be carried out on the outlet nozzles 9 in a simple manner.
  • water was supplied in each case via the supply nozzle 7.
  • steam via one of the supply ports, if desired, for better solution of certain components.
  • a ring 25 forming the free lip 24 can also be provided on the inlet side between the feed line 2 and the ring 6, which like the inwardly extended feed line 2 ensures that the nozzles 9 are not damaged .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Surgical Instruments (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Cleaning In General (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Claims (11)

1. Ejecteur destiné à aspirer un mélange de sable ou de terre et d'eau, possédant une entrée pour la matière à aspirer et un segment de tube conique (5), qui se raccorde au côté de sortie, et un segment annulaire (6) qui se raccorde à l'entrée, et possédant des orifices de sortie (9) disposés circonférentiellement sur le tour de l'intérieur du tube, pour le passage d'une matière qu'il s'agit d'introduire sous haute pression, qui sont reliés, côté entrée, à une tubulure d'alimentation (7) par l'intermédiaire d'un canal (12),
caractérisé en ce que le segment de tube conique (5) et le segment annulaire (6) sont constitués par des éléments rapportés interchangeables montés dans ou sur un carter (4) de l'éjecteur.
2. Ejecteur selon la revendication 1, caractérisé en ce que le segment de tube conique (5) est maintenu dans le carter (4) de l'éjecteur qui présente une bride (13,14) à chacun de ses côtés d'entrée et de sortie.
3. Ejecteur selon la revendication 2, caractérisé en ce que le segment annulaire (6) est maintenu entre la bride (13) côté entrée, fixée solidairement au carter (4) de l'éjecteur et une deuxième bride (15) qui peut y être fixée.
4. Ejecteur selon l'une des revendications 1 et 2, caractérisé en ce qu'au moins un premier (16) et un deuxième (17) segments d'éjecteurs analogues sont disposés en cascade l'un à la suite de l'autre.
5. Ejecteur selon la revendication 4, caractérisé en ce que le segment annulaire (6) est tenu entre la bride (14) côté sortie du segment d'éjecteur précédent (16) et la bride (13) côté entrée du segment d'éjecteur suivant (17).
6. Ejecteur selon la revendication 1, caractérisé en ce que le segment annulaire (6) présente des buses (9) disposées aux orifices de sortie et un canal (12) qui relie ces buses à la tubulure d'alimentation (7).
7. Ejecteur selon la revendication 6, caractérisé en ce que les buses (9) sont protégées par un écran (24) qui les abrite de l'intérieur du tube.
8. Ejecteur selon la revendication 7, caractérisé en ce que l'écran est formé d'un anneau intérieur (25) qui est engagé dans le segment annulaire (6).
9. Ejecteur selon la revendication 8, caractérisé en ce que l'anneau intérieur est formé par l'extrémité côté sortie du segment de tube (5) appartenant à un segment précédent (16, 17) de l'éjecteur qui est engagé dans l'anneau.
10. Ejecteur selon l'une des revendications 3 à 9, caractérisé en ce que le carter (4) de l'éjecteur et/ou le segment annulaire (6) présentent une paire de roues (21) disposées latéralement pour permettre de rapprocher ces éléments l'un de l'autre à l'occasion d'un remplacement.
11. Ejecteur selon la revendication 10, caractérisé en ce qu'il est prévu un châssis de guidage (18, 19, 20) pour guider les paires de roues.
EP89119169A 1988-10-27 1989-10-16 Tuyau à jet Expired - Lifetime EP0365964B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119169T ATE79163T1 (de) 1988-10-27 1989-10-16 Strahlrohr.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836661 1988-10-27
DE3836661A DE3836661C1 (fr) 1988-10-27 1988-10-27

Publications (2)

Publication Number Publication Date
EP0365964A1 EP0365964A1 (fr) 1990-05-02
EP0365964B1 true EP0365964B1 (fr) 1992-08-05

Family

ID=6366052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119169A Expired - Lifetime EP0365964B1 (fr) 1988-10-27 1989-10-16 Tuyau à jet

Country Status (6)

Country Link
EP (1) EP0365964B1 (fr)
JP (1) JPH02173400A (fr)
AT (1) ATE79163T1 (fr)
DD (1) DD284948A5 (fr)
DE (2) DE3836661C1 (fr)
DK (1) DK534189A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636235A1 (de) * 1985-10-24 1987-04-30 Erich Sterzel Duesenanordnung zur erzeugung einer gerichteten stroemung
JP2772500B2 (ja) * 1991-10-01 1998-07-02 孝 山本 流体吐出ノズル装置
DE4338425A1 (de) * 1993-11-10 1995-05-11 Huber Ges Fuer Versorgungs Und Verfahren und Vorrichtung zur Hochdruckreinigung kontaminierter Böden
DE4446935C2 (de) * 1994-12-28 1996-12-12 Edmund Prof Dr Wax Mehrstufiges Hochdruck-Strahlrohr
DE19500346C2 (de) * 1995-01-07 1997-04-10 Hubert Wax Gmbh & Co Kg Vorrichtung zur naßmechanischen Behandlung kontaminierter, körniger Materialien und deren Aufschlämmungen
AUPO150996A0 (en) * 1996-08-09 1996-08-29 Melbourne, John Stanley Hydro/pneumatic mixer
BE1016743A5 (nl) * 2005-09-01 2007-05-08 Packo Inox Nv Inrichting en werkwijze voor het transporteren van vaste producten in een fluidumstroom.
DE102010014580A1 (de) * 2010-04-09 2011-10-13 Dieter Wurz Mehrstoffdüse mit Primärgaskernstrahl
DE102014221203A1 (de) 2014-10-20 2016-05-04 Ksb Aktiengesellschaft Strahlpumpe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH101872A (fr) * 1921-12-12 1923-11-01 Eugene Caron Virgile Procédé et appareil pour l'aspiration et la compression d'un fluide gazeux.
US2396290A (en) * 1945-03-01 1946-03-12 Schwarz Sigmund Sludge pump
DE2150711C3 (de) * 1971-10-12 1978-08-24 Woma Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Verwendung einer Wasserstrahlpumpe als Tiefsauger
DE2321492A1 (de) * 1973-04-27 1974-10-31 Fritz Beckschulte Vorrichtung zum mischen und foerdern von staub- oder granulatfoermigem gut mit wasser
PL130954B1 (en) * 1979-10-31 1984-09-29 Inst Przemyslu Wiazacych Multi-stage jet pump
US4400138A (en) * 1981-10-19 1983-08-23 Baer William F Multiple jet eductor
US4487553A (en) * 1983-01-03 1984-12-11 Fumio Nagata Jet pump

Also Published As

Publication number Publication date
DE58901988D1 (de) 1992-09-10
DK534189A (da) 1990-04-28
DK534189D0 (da) 1989-10-26
ATE79163T1 (de) 1992-08-15
JPH02173400A (ja) 1990-07-04
DD284948A5 (de) 1990-11-28
DE3836661C1 (fr) 1990-04-19
EP0365964A1 (fr) 1990-05-02

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