EP0506929B1 - Dispositif pour le decapage de surfaces vernies - Google Patents

Dispositif pour le decapage de surfaces vernies Download PDF

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Publication number
EP0506929B1
EP0506929B1 EP91919142A EP91919142A EP0506929B1 EP 0506929 B1 EP0506929 B1 EP 0506929B1 EP 91919142 A EP91919142 A EP 91919142A EP 91919142 A EP91919142 A EP 91919142A EP 0506929 B1 EP0506929 B1 EP 0506929B1
Authority
EP
European Patent Office
Prior art keywords
opening
housing
rotor head
impeller
liquid
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
EP91919142A
Other languages
German (de)
English (en)
Other versions
EP0506929A1 (fr
Inventor
Reinhold Kaempf
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.)
Deutsche Lufthansa AG
Original Assignee
Deutsche Lufthansa AG
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 Deutsche Lufthansa AG filed Critical Deutsche Lufthansa AG
Publication of EP0506929A1 publication Critical patent/EP0506929A1/fr
Application granted granted Critical
Publication of EP0506929B1 publication Critical patent/EP0506929B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning

Definitions

  • the invention relates to a device of the type specified in the preamble of claim 1.
  • Solvents that dissolve the paint or cause it to swell are generally used to paint the surfaces. The paint is then removed by mechanical treatment. The use of solvents leads to a great environmental impact. The chromates that mix with the solvent are difficult to remove from the solvent. In addition, a significant proportion of the solvent evaporates into the atmosphere.
  • abrasive materials can be plastic granules, glass balls, nutshell splinters or CO2 ice crystals.
  • Such abrasive processes have the disadvantage that not only the paint is removed, but also the underlying surface is damaged. In particular if this surface consists of fiber-reinforced plastic, there is a risk that the reinforcing fibers will be exposed by exposure to abrasive agents, so that the surface to be stripped is seriously damaged.
  • a device according to the preamble of claim 1 is known from EP-A-0 382 085.
  • This device has spray nozzles loaded with press water which are rotatably mounted and can be driven about an axis of rotation.
  • the spray nozzles are directed obliquely against the housing opening in such a way that when the spray water emerges, a force component arises which rotates the nozzle ring about its axis.
  • the nozzle ring is connected to a paddle wheel, which consists of vanes which protrude from the hub of the nozzle ring and which are set back into the interior of the housing in relation to the spray nozzle openings.
  • the invention has for its object to provide a device for stripping lacquered surfaces with liquid jets, in which the blasting effect is not impeded by a liquid layer formed on the surface.
  • the device according to the invention contains a rotor head with at least one nozzle from which a liquid jet emerges with high pressure.
  • the rotor head is set in rotation by the pressure of the liquid jet or by its recoil, so that a separate rotating device on the housing is not necessary. Due to the rotation of the rotor head and the nozzles arranged thereon, the individual points on the surface are periodically pressurized from approximately 150 to 220 Hz. As a result of the swelling up and down This pressure load overcomes the cohesive pressure of the paint and the paint splinters off the surface. This means that both the top coat and the primer can be removed.
  • the rotor head is located inside the housing, the opening of which is closed by the surface to be treated. The housing thus completely encloses the treatment room.
  • the closed housing prevents liquid from being thrown into the environment in an uncontrolled manner. Noise pollution is also reduced.
  • the liquid and the paint materials detached from the surface are removed from the housing by the impeller.
  • the impeller forms a centrifugal pump arranged inside the housing, which does not obstruct the jet emerging from the nozzle and removes the suspension from the housing immediately after it is created. This ensures that the liquid jets are not obstructed by a liquid layer on the surface.
  • the device according to the invention only requires a connection for pressure fluid on the housing and no additional drives or supply lines.
  • the device is therefore easy to move over the surface to be treated.
  • the device is particularly suitable for stripping surfaces made of metal or plastic. It can be used to paint the outer skin of aircraft. Aircraft are stripped and repainted every four to six years. This stripping takes place in a hall in which other maintenance or repair work is carried out on the aircraft.
  • the device can be used in an environmentally friendly manner without hindrance or danger to persons entrusted with other work on the aircraft, it being only locally effective at the point at which it is used. The splashing around of liquid as well as noise pollution are avoided.
  • the outer skin of aircraft is made from aluminum alloys and partly from carbon fiber composite materials. Both types of material can be stripped with the same device.
  • the use of the device according to the invention is not limited to the stripping of paint from aircraft surfaces. Any other surface can also be freed from lacquer or corresponding coatings. With a correspondingly small-sized design, it is also possible to use the device for stripping fingernails.
  • the paint stripping is carried out by pulsing periodic pressurization with a liquid jet. Solvent-free liquids can be used. Stripping is preferably carried out with water. The removal of the water-insoluble color particles from the water can be done by sedimentation or other separation processes, so that no contaminated water gets into nature. If necessary, the dyes can be reused.
  • the impeller which rotates together with the rotor head and rotates at several thousand revolutions per minute, throws the suspension out of the housing to the outlet.
  • Requirement for this function of the Impeller is that the impeller or the rotor head is not braked by a liquid build-up in the housing. If the stripping device has to be operated in different positions, for example on horizontal surfaces, vertical or inclined surfaces and overhead, liquid accumulations in each of these positions can be prevented by arranging the impeller at the end of the rotor head facing the opening.
  • the impeller is therefore effective in the immediate vicinity of the surface to be treated, along which the leading edges of its blades move. This ensures that the liquid is gripped by the impeller immediately after it hits the surface and is thrown off radially, so that no liquid accumulations can form which impede the rotation of the impeller and the rotor head.
  • the stripping device has a housing 10 which is designed in the manner of a bell and has an opening 11, the edge of which is attached to the surface 12 to be stripped. If the housing 10 is attached to the surface 12, its interior 13 is completely shielded from the outside, although one Ventilation device is provided, which will be explained later.
  • a shaft 14 is fastened, which has a liquid connection 15.
  • the shaft 14 is fixedly mounted in a socket 16 of the housing 10.
  • An axis 17 is screwed into the shaft 14, which extends from the shaft 14 into the vicinity of the opening 11 and on which the rotor head 18 is rotatably mounted.
  • the rotor head 18 contains two nozzles 19, 20, the openings 21 of which exit vertically on a frustoconical surface 22.
  • the frustoconical surface 22 is arranged to the surface 12 or to the plane of the opening 11 at such an angle that the jets emerging from the nozzle openings 21 strike the surface 12 at an angle other than 90 °, for example at an angle of 60 °. This means that the axes of the nozzles 19 and 20 form an angle of 30 ° with the axis of the shaft 17.
  • the rotor head 18 contains a longitudinal bore 23 which receives the shaft 17.
  • a channel 24 in the interior of the shaft 17 is connected to the liquid connection 15 and from this channel cross bores 25 lead to an annular groove 26 in the rotor head 18.
  • a bore 27 leads from this annular groove 26 to the respective nozzle 19 or 20.
  • the surface of the shaft 17 is provided with a ceramic coating 17a which on the one hand forms a sliding bearing for the rotor head 18 and on the other hand seals the bore 23.
  • 26 sealing grooves 29 are provided in the bore 23 on both sides of the annular groove.
  • the impeller 30 is fastened with screws 31 to the end face of the rotor head 18 facing the opening 11.
  • the impeller 30 has a plurality of substantially radial vanes 32 which are fastened to a sleeve 33.
  • the sleeve 33 is frustoconical in shape corresponding to the surface 22, so that it has a plate shape and its distance from the surface 12 increases radially outwards.
  • the front edges 34 of the blades run radially to the axis of the rotor head 18 and in a plane that is parallel to the plane of the opening 11.
  • the rotor head 18 is supported on a flange 35 of the fixed shaft 17 and at the front end on a disk 36, which is fastened to the front end of the shaft 17 with a screw 37.
  • the nozzles 19 and 20 are arranged on the rotor head 18 such that the recoil of the liquid jet emerging from the nozzle opening 21 rotates the rotor head 18. This is achieved in that the jets emerging from the two nozzle openings 21 do not lie in a common plane but in two planes which are slightly opposite to a plane passing through the axis of the rotor head on one side and on the opposite side Amount are offset. This slight offset of the two nozzles, which is barely perceptible to the naked eye, ensures that the liquid jets 39 emerging from the nozzle openings 21 give the rotor head 18 a rotation.
  • the vanes 32 of the impeller 30 extend in a radial expansion of the housing 10 into it. This extension is limited by a cylindrical peripheral wall 40.
  • the peripheral wall 40 is surrounded by an axially displaceable jacket 41 which is delimited at the front end by an inwardly projecting ring 42.
  • the ring 42 which forms the opening 11, contains a circumferential groove 43 behind this opening for collecting liquid running off the surface 12.
  • the rear end of the jacket 41 is connected to the rear end of the peripheral wall 40 via a plurality of rubber-elastic tabs 44 which are arranged in a distributed manner.
  • the tabs 44 endeavor to advance the jacket 41 in the direction of the surface 12.
  • the ring 42 first comes against this surface, while the peripheral wall 40 is still at a distance therefrom.
  • the remaining part of the housing 10 is then advanced in the casing 41 until the front end of the peripheral wall 40 abuts the ring 42.
  • openings 46, 47 are provided at one point, at which an outlet 48 leading tangentially out of the housing 10 is arranged.
  • a ventilation device on the housing 10 which in the present exemplary embodiment consists of the gap 49 between the peripheral wall 40 and the casing 41.
  • the interior of the housing communicates with the surroundings via this annular gap 49, which surrounds the impeller 30.
  • the passage cross section of the gap 49 is approximately two thirds of the cross section of the outlet 48. Outside air is sucked in through the gap 49 and mixes with the liquid inside the device, the resulting liquid-air mixture being discharged through the outlet 48. It is necessary to ventilate the inside of the housing so that the impeller in the housing does not create too great a vacuum.
  • the negative pressure created in the housing is sufficient to suck the housing onto the surface 12, so that no or only a small contact pressure has to be exerted on the housing.
  • the device described works as follows:
  • the housing 10 is attached with the opening 11 to the surface 12 to be stripped. Liquid at a pressure of several 100 bar, e.g. 400 bar, laid. Liquid jets emerge from the nozzle openings 21 at high speed.
  • the rotor head 18 is rotated by the recoil of the escaping liquid. The speed is about 4500 to 6000 U / min with two nozzles.
  • the liquid jets emerging from the rotor head 18 strike the surface 12 obliquely so that they are not hindered by the reflected liquid. If the housing 10 is held stationary, then each point of the surface 12 hit by a liquid jet is subjected to a frequency of 150 to 200 Hz. This removes the paint from this point.
  • the impeller 30 attached to it rotates together with the rotor head 18.
  • the liquid jets are not impeded by this impeller because they emerge between two vanes 32 in each case.
  • the one from the surface 12 reflected liquid and the liquid running off on this surface and entering the groove 43 or channel is thrown off radially by the rotating impeller 30 in the manner of a centrifugal pump and pressed to the outlet 48.
  • the removal of the liquid is supported by the suction of outside air through the gap 49.
  • the sucked-in outside air forms a flow in the interior of the housing, which entrains all liquid towards the outlet 48. Since the vanes of the impeller rotate in the immediate vicinity of the surface 12, the liquid is removed immediately after the decay of the liquid pressure jets, so that no liquid accumulations can form in the housing which would impede the rotation of the rotor head.

Landscapes

  • Nozzles (AREA)
  • Centrifugal Separators (AREA)

Claims (8)

  1. Dispositif pour le décapage de surfaces vernics par jets à haute pression, avec
       un boîtier (10) qui présente une ouverture (11) pouvant être appliquée contre la surface (12),
       une tête de rotor (18), montée de manière rotative dans le boîtier, qui présente au moins une tuyère (19, 20) orientée vers l'ouverture (11), qui peut être raccordée à une source de liquide sous pression, la pression de liquide faisant tourner la tête de rotor (18), et
       une roue à palettes (30), fixée à la tête de rotor (18), qui constitue une pompe centrifuge pour l'évacuation du liquide vers une sortie (48) prévue dans le boîtier (10),
    caractérisé par le fait que
       les axes des tuyères (19, 20) sont orientés vers l'ouverture (11), obliquement vers l'extérieur, et
       la roue à palettes (30) est prévue sur la face frontale de la tête de rotor (18) orientée vers l'ouverture (11) et présente un flasque (33) en forme d'assiette fixé sur la tête de rotor (18), à partir duquel les palettes (32) s'étendent vers l'ouverture (11), la distance entre le flasque (33) et l'ouverture (11) augmentant quand on se déplace radialement vers l'extérieur.
  2. Dispositif selon la revendication 1, caractérisé par le fait que le boîtier (10) présente un système d'aération, dont la section de passage est égale a au moins la moitié de la secion de passage de la sortie (48).
  3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le boîtier (10) présente une paroi périphérique (40) et une enveloppe (41) déplaçable axialement, qui entoure cette dernière et qui définit l'ouverture (11), et que l'enveloppe (41) est par rapport au boîtier précontrainte en direction de la surface (12), et peut se reculer par pression contre la surface (12).
  4. Dispositif selon la revendication 3, caractérisé par le fait que le système d'aération consite en un espace (49) entre la paroi périphérique (40) et l'enveloppe (41).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait qu'il est prévu une collerette (42) entourant l'ouverture (11) qui présente, intérieurement, une rainure périphérique (43) destinée à recueillir le liquide s'écoulant le long de la surface (12).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que la tête de rotor (18) présente une face tronconique (22) sur laquelle s'appuie la roue à palettes (30), la largeur des palettes (32) augmentant vers l'extérieur.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait que les palettes (32) de la roue à palettes (30) présentent, du côté orienté vers l'ouverture (11), des arêtes (34) qui s'étendent parallèlement au plan de l'ouverture (11).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé par le fait que plusieurs tuyères (19, 20) sont disposées de manière que la tête de rotor (18) tourne à une vitesse telle que la fréquence de la soumission à la pression à un endroit donné de la surface est de 150 à 200 Hz.
EP91919142A 1990-12-07 1991-11-09 Dispositif pour le decapage de surfaces vernies Expired - Lifetime EP0506929B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4039092 1990-07-12
DE4039092A DE4039092C1 (fr) 1990-12-07 1990-12-07
PCT/EP1991/002126 WO1992010313A1 (fr) 1990-12-07 1991-11-09 Dispositif pour le decapage de surfaces vernies

Publications (2)

Publication Number Publication Date
EP0506929A1 EP0506929A1 (fr) 1992-10-07
EP0506929B1 true EP0506929B1 (fr) 1995-04-19

Family

ID=6419819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91919142A Expired - Lifetime EP0506929B1 (fr) 1990-12-07 1991-11-09 Dispositif pour le decapage de surfaces vernies

Country Status (7)

Country Link
US (1) US5321869A (fr)
EP (1) EP0506929B1 (fr)
JP (1) JPH05503049A (fr)
AT (1) ATE121320T1 (fr)
CA (1) CA2074491A1 (fr)
DE (1) DE4039092C1 (fr)
WO (1) WO1992010313A1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4230026A1 (de) * 1992-09-10 1994-03-17 Otmar Fahrion Entlackungseinrichtung
US5494124A (en) * 1993-10-08 1996-02-27 Vortexx Group, Inc. Negative pressure vortex nozzle
US5463791A (en) * 1994-09-01 1995-11-07 Redfield Engineering Surface cleaning appliance
US5577293A (en) * 1994-10-24 1996-11-26 Waterjet Systems, Inc. Full recovery stripping system
US5628271A (en) * 1995-03-22 1997-05-13 Amclean, Inc. Apparatus and method for removing coatings from the hulls of vessels using ultra-high pressure water
US7085227B1 (en) * 2001-05-11 2006-08-01 Cisco Technology, Inc. Method for testing congestion avoidance on high speed networks
US5706548A (en) * 1995-11-13 1998-01-13 Schabacker; Nolan D. Pressure washer
AU2690397A (en) * 1996-03-06 1997-09-22 Gerard Pieper Process and machine for treating surfaces
US5970573A (en) * 1997-03-03 1999-10-26 Lahaye; John C. Environmental device for cleaning surfaces
US5884642A (en) * 1997-08-07 1999-03-23 Broadbent Spray Rentals Remotely controlled pressurized liquid dispensing mobile unit
US6189177B1 (en) 1998-11-17 2001-02-20 Nlb Corp Rotating fluid jet cleaning system for vertical walls
US6081960A (en) * 1998-11-17 2000-07-04 Nlb Corporation Rotating fluid jet cleaning system for vertical walls
DE29913822U1 (de) * 1999-08-07 2000-12-21 Dorandt Georg Anlage zur Entschichtung, insbesondere Entlackung, von Lagertanks
US6240595B1 (en) * 1999-09-21 2001-06-05 Uhp Projects, Inc. Apparatus for removing coatings from deck tiedowns on marine vessels using ultra high pressures waterjetting
FR2801827B1 (fr) * 1999-12-02 2002-02-01 Etienne Lebourg Procede de decapage permettant de peindre des meubles
FR2824721B1 (fr) * 2001-05-17 2003-09-05 David Sadaune Perfectionnement aux dispositifs de nettoyage par aspiration
GB2392826A (en) * 2002-09-12 2004-03-17 Drysteam Cleaners Ltd A method and apparatus for steam cleaning a surface
US7293570B2 (en) * 2004-12-13 2007-11-13 Cool Clean Technologies, Inc. Carbon dioxide snow apparatus
US7802342B2 (en) * 2006-07-25 2010-09-28 The Acker-Cowan Group, L.L.C. Acoustic ceiling removal
JP5912916B2 (ja) * 2012-06-27 2016-04-27 日立Ｇｅニュークリア・エナジー株式会社 ショットピーニング方法
US9061328B2 (en) 2012-08-03 2015-06-23 William R. Detyens, JR. Method for cleaning the interior surface of hollow articles
AT519215B1 (de) * 2016-11-21 2018-07-15 Hubert Palfinger Tech Gmbh WERKZEUG ZUR REINIGUNG VON GROßEN FLÄCHEN
JP7049279B2 (ja) * 2019-01-18 2022-04-06 ヤンマーパワーテクノロジー株式会社 水中清掃作業機
CN112498602B (zh) * 2020-11-11 2021-09-21 威海海洋职业学院 一种船舶表面附着物清理装置
NO347393B1 (en) * 2022-04-05 2023-10-16 Environtec Aqua As A surface-cleaning device and vehicle

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968934A (en) * 1908-10-28 1910-08-30 United Electric Company Cleaning-machine.
US1498255A (en) * 1923-03-23 1924-06-17 Winchester Carey Carter Rug and fabric cleaning device
US2695773A (en) * 1949-11-02 1954-11-30 Carrier Corp Cooling tower
US2846822A (en) * 1955-11-07 1958-08-12 Walter F Brack Sand blast machine
US3428131A (en) * 1966-08-16 1969-02-18 Bliss Co Method and apparatus for generating fire-fighting foam
US3441086A (en) * 1966-11-21 1969-04-29 Kidde & Co Walter Foam generator with water powered axial flow fan
US3624668A (en) * 1970-07-23 1971-11-30 Helmuth W Krause Rug cleaning and rinsing device
DE2548432C2 (de) * 1974-10-30 1986-10-02 Bernard Eaton Salisbury Wiltshire Hart Vorrichtung zum Erzeugen eines gegen eine Fläche gerichteten rotierenden Sprühstrahls
DE2839143A1 (de) * 1978-09-08 1980-03-20 Hellmut Kuhnle Vorrichtung zum reinigen von fussboeden
CH644294A5 (en) * 1980-02-27 1984-07-31 Arx Ag Sand-blasting unit with rotating nozzle head
DE3229720A1 (de) * 1982-08-10 1984-02-16 Paul 4740 Oelde Hammelmann Hydrodynamische reinigungsvorrichtung vorzugsweise fuer schiffsaussenwaende
US4524550A (en) * 1982-11-30 1985-06-25 Air Products And Chemicals, Inc. Discharge of blasting media from a treating chamber
DE3834896A1 (de) * 1988-10-13 1990-04-19 Kiess Karl Heinz Strahlduese fuer sandstrahlgeraete zur staubfreien bestrahlung planebener flaechen
CH678287A5 (fr) * 1989-02-10 1991-08-30 Technolizenz Ets

Also Published As

Publication number Publication date
EP0506929A1 (fr) 1992-10-07
CA2074491A1 (fr) 1992-06-08
JPH05503049A (ja) 1993-05-27
WO1992010313A1 (fr) 1992-06-25
US5321869A (en) 1994-06-21
ATE121320T1 (de) 1995-05-15
DE4039092C1 (fr) 1992-04-16

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