EP2573446B1 - Verfahren und Anlage zur Herstellung eines Druckbehälters - Google Patents

Verfahren und Anlage zur Herstellung eines Druckbehälters Download PDF

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Publication number
EP2573446B1
EP2573446B1 EP12401190.9A EP12401190A EP2573446B1 EP 2573446 B1 EP2573446 B1 EP 2573446B1 EP 12401190 A EP12401190 A EP 12401190A EP 2573446 B1 EP2573446 B1 EP 2573446B1
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EP
European Patent Office
Prior art keywords
pressure vessel
welding
coating
lance
adapter element
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.)
Active
Application number
EP12401190.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2573446A1 (de
Inventor
Klaus-Reiner Baselt
Günter Heckel
Katharina Pfüller
Enrico Malz
Daniel Kratzsch
Detlef Schubert
Jürgen HELLER
Jörg Hessler
Burkhard Koehn
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.)
Frauenthal Automotive Elterlein GmbH
Original Assignee
Frauenthal Automotive Elterlein 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
Priority claimed from DE201120051419 external-priority patent/DE202011051419U1/de
Priority claimed from DE202012102720U external-priority patent/DE202012102720U1/de
Application filed by Frauenthal Automotive Elterlein GmbH filed Critical Frauenthal Automotive Elterlein GmbH
Priority to PL12401190T priority Critical patent/PL2573446T3/pl
Publication of EP2573446A1 publication Critical patent/EP2573446A1/de
Application granted granted Critical
Publication of EP2573446B1 publication Critical patent/EP2573446B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding

Definitions

  • the invention relates to a method and a system for producing a pressure vessel, in particular a compressed air tank for vehicles according to the features of the preambles of claims 1, 5 and 10.
  • Compressed air tank for vehicles have a tubular or cylindrical shell, which is closed at both ends by welded-bottoms. At least one bottom and / or the casing are provided with at least one bore, to which connection elements, for example in the form of a threaded ring or connecting piece and possibly also console-like holders, are connected to the outside.
  • connection elements for example in the form of a threaded ring or connecting piece and possibly also console-like holders.
  • the bolt must then be removed again, whereby an increased production engineering effort is recorded. Furthermore, the diameter of the Tribolanze must be reduced by the bolt inserted into the bore.
  • the welding of the floors to the shell by laser welding requires a high dimensional accuracy of the components to be joined and a mutually parallel formation of abutting abutment surfaces for welding. The thus required pre-processing increases the cost of manufacturing the pressure vessel considerably.
  • the container has at least one threaded ring or connecting piece with a connecting thread, which was also fastened by laser welding. On the inner and outer sides of the container, a bonding agent is applied before the powder coating.
  • the long-known MAG welding (s. DD 259 364 A1 ), in contrast, provides a more cost-effective production method for pressure vessels, in particular brake air tanks.
  • the welded containers are provided in the prior art on its inside and on its outside with a powder coating, wherein the thread in an undesirable manner and despite the use of Lackiertikhülsen partly with paint. During finishing, the threads are brushed as needed, thereby leaving paint residue in the container. Furthermore, paint particles are already in the container by removing the Lackiertikhülsen.
  • containers made by welding are also coated internally and externally with a primer layer, e.g. a Zn, Fe phosphate layer or nano-coating must be provided, which ensures that the powder coating also adheres well in the region of the weld.
  • a primer layer e.g. a Zn, Fe phosphate layer or nano-coating must be provided, which ensures that the powder coating also adheres well in the region of the weld.
  • the object of the invention is to develop a method and a system for producing a pressure vessel, with the method and the plant effective production is to be ensured and the pressure vessel has a structural design that is inexpensive to produce and what an effective and high quality Internal coating is ensured.
  • the pressure vessel in particular compressed air tank
  • the pressure vessel which has a substantially tubular wall and two end floors and is provided with connection elements, completely produced by welding, wherein avoided in the range of one or more pointing to the container interior welds the emergence of a scale layer or a welding
  • the resulting scale layer is removed and thereby for the first time an internal powdering / inner coating of the container without adhesion promoter directly on the base material using at least one can be introduced into the pressure vessel and spray a coating powder lance and an external powder / outer coating of the container with or without prior application of a primer is performed and that for internal coating in a hanging container through the upwardly facing connecting piece, the opening for introducing the lance into the pressure vessel leads un d that an adapter element is attachable to the connecting piece, wherein the adapter element is fastened with at least one fastener / suspension to a transport device and wherein the pressure vessel
  • the burn-in of the external and internal powdering is preferably carried out simultaneously, wherein first the internal powdering and then the external powdering is carried out.
  • forming is carried out during the welding process. If the welding was carried out without formation and a scale layer formed, this is preferably mechanical, e.g. eliminated by brushing or sanding. However, it is also possible to chemically remove the scale layer.
  • a welding process with filler material is performed, such as arc welding (TIG welding, MIG welding, MAG welding or laser hybrid welding).
  • arc welding TIG welding, MIG welding, MAG welding or laser hybrid welding.
  • MAG welding metal active gas welding
  • one or more connection elements can be attached to the jacket or the floor (s) by laser welding, and longitudinal seam welding of the jacket and welding of the floors can be performed by MAG welding or laser welding.
  • Connection elements are at least one threaded ring which is fastened substantially centrally in a bottom and serves for internal powdering, threaded sockets or connecting pieces which are arranged on a bottom (on the side of the threaded connection and / or opposite) and a Lockable drainage process, which is usually arranged in the jacket of the container. Furthermore, connecting elements in the form of one or more holders (usually console-shaped) can be arranged on the container.
  • the inner coating can be done with a standing container through an upwardly facing opening via the threaded ring or connecting piece. For very large designs, the inner coating is preferably carried out with a lying container through a side-facing opening.
  • the inner coating is carried out in several coating operations with a plurality of lances, wherein the lances spray in the same or different directions. It is envisaged that each pressure vessel engages a lance. For example, two or more lances may be provided, each of which engages another container while retracting the lances simultaneously. After a coating process, the pressure vessels continue to clock and are internally coated by another lance.
  • the inner coating is preferably carried out manually in a rotary indexing table or clocked along with an automated introduction of the lances or, in particular, in the case of very large horizontally accommodated containers.
  • the container is fixed with an adapter element on the outside of its threaded ring or connecting piece, through which the adapter element has an opening for introducing the lance into the container.
  • the adapter element which also serves to fix the container, an extraction of loose particles from the thread of the threaded ring or connecting piece.
  • connection elements To protect threaded connection elements these are provided before the powder coating of the inner and / or outer surfaces with Lackierstoffhülsen, after removing the Lackierstoffhülsen also adhering loose paint particles are removed by a suction in the connection elements.
  • the powder coating is carried out in a known manner electrostatically either by corona application, by which the fluidized powder coating is electrostatically applied to the surface to be coated or by Tribo application, in which the electrostatic charging of the powder particles is realized by friction.
  • the plant according to the invention for producing a pressure vessel in particular a welded compressed air tank, which has a substantially tubular wall and two end floors and is provided with connection elements, has at least one internal coating unit, in which an electrostatic internal powder / inner coating of the pressure vessel without adhesion promoter directly on the base material using at least one can be introduced into the pressure vessel and a coating powder spraying lance, via a in a bottom of the container arranged substantially central opening can be introduced, and with at least one outer coating unit, in which an electrostatic external powdering / outer coating of the pressure vessel takes place, wherein for internal coating through an upwardly facing connecting piece, the opening for introducing the lance into the pressure vessel leads and that an adapter element is attachable to the connecting piece, wherein in a hanging container, the adapter element with at least one fastening means / a suspension on a Transportinr is attached and wherein the pressure vessel for inner coating with a deflection from its hanging position in a laterally deflected position is movable, in which the la
  • Another inventive form of a system for producing a pressure vessel in particular a welded compressed air tank having a substantially tubular wall and two end floors and is provided with connecting elements, also has at least one lance for electrostatic internal coating of the pressure vessel, wherein an adapter element from the outside at least one connecting element in the form of a threaded ring or connecting piece can be applied or connected to the threaded ring or connecting piece and has a through hole, which adjoins an upwardly pointing passage opening of the threaded ring or connecting piece and wherein the lance from above through the through hole of Adapter element and the passage opening of the threaded ring or connecting piece can be introduced into the pressure vessel and the adapter element and attached via the threaded ring or connecting piece to the adapter element Druckbeh is older hanging and that the inner coating unit has at least one deflection means, which is also suitable to move at least one pressure vessel from its hanging position in a laterally deflected position, in which the lance from above into the container can be introduced.
  • At least one welding unit for connecting the connecting elements to at least one floor and / or the wall area and for connecting the floors to the wall is arranged in front of the inner coating unit. After the inner coating unit and the outer coating unit, at least one unit for baking the coating is arranged.
  • the welding unit is provided with a device for supplying protective gas, with which at least in the regions of the weld seams, with which the connecting elements are fastened by welding, forming takes place to avoid a scale layer.
  • a mechanical scaling removal means may be provided which mechanically removes (e.g., by grinding and / or brushing) a scale layer present on the welds after welding. It is also possible to chemically remove the scale in the area of the welds.
  • the avoidance or removal of the scale layer forms the basis for the fact that at least the inside of the container can be electrostatically powdered without prior application of a primer and thereby a high quality powder coating is produced, which reliably adheres well in the welds.
  • the welding unit is preferably a unit for arc welding such as TIG welding, MIG welding or MAG welding.
  • the container to be provided with the inner coating is preferably received standing, so that the opening provided for insertion of the lance facing upwards and that at least one lance is inserted from above into the container.
  • the receiving device is designed so that the container is received lying, so that the opening for lateral insertion of the lance is arranged according to the side.
  • the inner coating unit has a plurality of lances which spray in the same or different directions.
  • the inner coating unit preferably has at least one first lance for Essentially horizontal spraying of the coating powder and at least one second lance for spraying the coating powder substantially at an obtuse angle.
  • Each container passes through several stations of the inner coating unit, where it is coated inside with a different lance inside, whereby a high-quality coating result is achieved.
  • the inner coating unit preferably has two first stations, wherein in each first station in each case a first lance for horizontal spraying of the coating powder is arranged, two second stations, wherein in each second station in each case a second lance for spraying at an obtuse angle of the coating powder is arranged.
  • a container is coated internally in each of four stations by one lance or only two or three or even only one lance per container is used, depending on the coating task.
  • the opening for introducing the lance leads through a connecting element in the form of a threaded bore having a threaded bore or connecting piece, which is arranged substantially centrally in a bottom of the container, wherein on the threaded ring or connecting piece from the outside a fixing unit in the form of an adapter element can be applied , which has an opening with a diameter which substantially corresponds to the diameter of the opening in the threaded ring or connecting piece and wherein the lance can be introduced through the adapter element into the container.
  • the adapter element is located, for example, with a contact surface on the outwardly facing end face of the threaded ring or connecting piece and surrounds the threaded ring or connecting piece on its outer contour, whereby an axial and radial positional fixation of the pressure vessel is ensured.
  • the adapter element which serves to fix the position of the container in the internal powders, at the same time provides an insertion aid for the lance, is used for Extraction of loose particles after powder coating and is advantageously connected as potential equalization
  • the pressure vessel can be applied at its opposite end of the adapter element in a first variant to a receiving device, so that it is fixed in position between the adapter element and the receiving device.
  • the adapter element can also be used if, for example, the opening on the container points downwards and the lance is introduced from bottom to top (overhead) into the container to its inner coating.
  • a corresponding device is arranged after the welding unit.
  • a primer layer zinc phosphate is usually used and therefore closed before the zinc phosphating the outer contour of the container with watertight stopper.
  • the finally arranged coating unit of the system advantageously realizes the simultaneous baking of the inner coating and the outer coating.
  • the adapter element is screwed to the upwardly pointing substantially centrally disposed threaded ring or connecting element and the inner coating takes place in a hanging container thereby received by the upward-facing opening via a threaded ring or connecting piece and an opening of the adapter element.
  • the pressure vessel has a wall, a down here facing first floor and an upwardly facing second floor.
  • the threaded ring, via which the internal powder takes place, is arranged substantially centrally on the upper second floor.
  • at least one fastening element is provided, which is arranged on the adapter element and can be fastened to a transport device by means of at least one fastening means.
  • the pressure vessel is deflected laterally by suitable means, and indeed until the opening of the adapter element from above is accessible, so that the lance can be introduced via this in the pressure vessel.
  • the lance for internal coating of the pressure vessel in an upwardly facing passage opening of the pressure vessel can be inserted, including the pressure vessel, which is received on one or more fasteners with fastening means is moved in a laterally deflected position, a high-quality coating result can be achieved.
  • the upward-facing bottom-side passage opening of the threaded ring of the pressure vessel is arranged substantially centrally and underneath is an unspecified breakthrough in the pressure vessel, through which the lance can be introduced into the pressure vessel,
  • the receiving means is formed in two parts. It has at least one adapter element, which is provided with a through hole for the passage of the lance and fastened to the connection piece, advantageously by a screw connection. Furthermore, a fastening means or a suspension is provided, via which the adapter element is attached to a transport device.
  • the adapter element and the fastening means can also be formed in one piece.
  • the deflection means acts directly or indirectly on the pressure vessel and / or on the adapter element and / or on the fastening means.
  • the deflection means is designed in the form of an axially actuable actuating element and the lateral deflection of the container is realized via a sliding movement or a pulling movement.
  • the actuating element may be a piston rod of a hydraulically or pneumatically actuated piston / cylinder system.
  • the deflection means may be formed in the manner of a rail, along which the container is moved by means of the transport means and which has a contour through which the container is deflected laterally.
  • the rail may have a sliding surface with a low coefficient of friction or rolling elements in the direction of the container.
  • the actuating element or the rail engage the adapter element, wherein the adapter element can be additionally stabilized via an adapter.
  • two (or more) containers can be coupled via their adapter elements by means of an adapter. At least one actuating element or a rail then acts against the adapter for lateral deflection.
  • the receiving means and thereby preferably the adapter element has a reference surface and / or a reference edge, which serves as a reference / zero point for determining the size of the container received on the adapter element.
  • the system is equipped with a measuring system, preferably a laser measuring system, for determining at least the length and advantageously also the diameter of the container received on the adapter element, wherein based on the determined container size, the depth of entry of the lance in the container to the inner coating can be fixed.
  • a plurality of containers can be picked up by the transport system at the same time, wherein the containers can have different sizes and in a coating system several of these containers are internally coated by a plurality of lances, wherein all lances have the same length and are introduced according to the length of the container in this ,
  • the system and the method ensure an efficient and cost-effective production of the pressure vessel, according to the invention for the first time dispensing with at least one inner adhesion promoter layer.
  • the pressure vessel is designed in particular in the form of a welded compressed air tank and has an essentially three-part design with a tubular wall and two end floors and connecting elements, the tank having an internal powder coating / inner coating on its inner side and / or an outer powder coating on its outer side / External coating is provided, which is deposited for the first time without adhesion promoter directly on the base material.
  • the container has no structural changes to conventional MAG-welded compressed air tanks. Due to the lack of adhesive layer, the container costs can be significantly reduced.
  • the pressure vessel has in its interior an internal purity, in which the dirt particles ⁇ 1mg / m 2 inner surface. It will be a lot provided clean container, which meets the often high demands for internal purity, as required in the ISO 16232-10 according to the following table.
  • ISO 16232-10 concentration level size classes Size x [ ⁇ m] 6 D (25 ⁇ x> 50) 5 e (50 ⁇ x> 100) 4 F (100 ⁇ x> 150) 2 G (150 ⁇ x> 200) 2 H (200 ⁇ x> 400) 0 I (400 ⁇ x> 600) 00 J (600 ⁇ x> 1000) 00 K (1000 ⁇ x)
  • the inner coating and the outer coating of the pressure vessel may differ in terms of material composition and / or color and / or layer thickness.
  • the parts of the container can be joined with the same or different welding methods.
  • the tubular wall is produced by longitudinal seam welding and then the floors are welded thereto, using as the preferred welding method arc welding (TIG welding, MIG welding, MAG welding or laser hybrid welding).
  • arc welding TIG welding, MIG welding, MAG welding or laser hybrid welding.
  • the connecting elements were attached to it. This can also be done by the aforementioned welding methods but also by laser welding.
  • the conventional structural design of the containers can be maintained and the required preparatory work is reduced considerably compared to laser welding.
  • the connecting elements, threaded ring or connecting piece and possibly brackets can also be fixed with laser welding, since the preparation work is not so expensive.
  • the container 1 which is designed here in the form of a pressure vessel, in particular a compressed air tank, has according to FIGS. 1 and 2 in a conventional design, a tubular, here cylindrical wall 2, at which in the illustrations below, an end-side first bottom 3 and an end-side second bottom 4 arranged here above were joined together by MAG welding.
  • a tubular, here cylindrical wall 2 At the bottoms 3 and 4 two or a threaded rings or connecting piece were attached by MAG welding.
  • the threaded rings or connecting piece 6 were connected to the first / second floor 3, 4 and then the floors 3, 4 with the wall 2 produced by longitudinal seam welding.
  • the containers 1 are received here standing with their first floor 3 by a receiving device 7 ,
  • a fixing device in the form of an adapter element 8. This lies with a bearing surface 8.1 on the outer not designated here End face of the threaded ring or connecting piece 6 and surrounds its also not designated outer contour with an inner contour 8.2.
  • the fixing device 8 does not extend to the bottom 4, so that it is not damaged.
  • the inner diameter 8.3 of the fixing device 8 substantially corresponds to the passage opening 6.1 of the threaded ring or connecting piece 6 or is only slightly larger or smaller. Thereby, the outer diameter of the lances 9 are larger compared to conventional solutions.
  • the fixing device or the adapter element 8 has an insertion bevel 8.4.
  • FIG. 1 engages through the inner diameter of 8.3 of the fixing device and the inner diameter 6.1 of the threaded ring or connecting piece 6 and through a breakthrough 4.1 in the second cover 4, a lance 9, which is coated with a first nozzle 10.1 in the horizontal direction W inside and in FIG. 2 a lance 9 which sprays with a second nozzle 10.2 in the obtuse direction S upwards and / or also below.
  • the use of the lances 9 with different nozzles 10.1, 10.2 takes place successively in different stations, wherein the recorded in the stations pressure vessel 1 are provided at the same time with an inner coating and then redesigntaktaktet.
  • one or more lances 9, which spray in different directions or produce a spherical spray cloud Preferably, a lance 9 at an obtuse angle, a lance 9 horizontally and a lance 9 spray spherically.
  • a lance 9 at an obtuse angle, a lance 9 horizontally and a lance 9 spray spherically For small containers, it is possible to provide only one or some of the lances for internal coating and to blind the others.
  • a rotation of the pressure vessel 1 can be omitted about its own axis. Furthermore, a better corrosion protection is achieved by the electrostatic powder coating of the pressure vessel 1 than in the conventional coating with wet paint.
  • the powder is preferably carried out from above in an automatic machine or, in the case of large containers, from the side and manually.
  • the machine for internal powders is, for example, a carousel or a linear system with 8 stations, being powdered in 4 stations (ie 4 lances). For large containers, all 4 lances are used, 2 lances spray horizontally, 2 obtuse or 1 vertically down and one in a cloud. For smaller containers is only powdered with one, two or three lances, with at least one lance each horizontally and an obtuse (up) powder or generates a spray cloud that acts in all directions. Powdering takes place via the central threaded ring or connecting piece of the upper floor. Subsequently, in a conventional manner, the external powders. The inner and the outer paint are baked together, preferably at 180 ° C to 230 ° C.
  • FIGS. 3 to 5 is a variant with hanging transported pressure vessels 1, which are laterally deflected for internal coating shown.
  • FIG. 3 shows the front view of a container 1 in the form of a welded compressed air tank with a substantially cylindrical wall 2 and two end-side bottom portions / first bottom 3, second bottom 4, wherein in the upwardly directed second bottom 4 a substantially central connecting piece 6 is arranged, having a through opening 6.1 for introducing a lance, not shown here, which serves for internal coating of the container (compressed air tank 1), for example by means of powder coating.
  • an adapter element 8 shown above can be screwed, which is formed substantially cylindrical.
  • the connecting piece 6 has an external thread and the adapter element 8 has a corresponding internal thread (not shown).
  • the adapter element 8 via a fastening means 13 to a transport device 14 can be fastened, which is formed for example in the form of a chain conveyor.
  • the adapter element 8 has a through-bore 8.1 indicated by dashed lines, which widens conically upwards in the manner of an unspecified insertion bevel, so that the lance 9 (FIG. Fig. 5 ) can be better introduced.
  • FIG. 4 shows in side view the container 1, at the connection piece 6, the adapter element 8 was screwed, which by means of the fastening means 13 at the transport device 14 is suspended. The pressure vessel 1 is thus added hanging.
  • the adapter element 8 has two mutually opposing bolt-like fastening elements 11, which are hooked onto hook-like elements 13. 1 of the fastening means 13.
  • the through hole 8.1 of the adapter element 8 is covered upwards by the fastening means 13 and the transport device 14 in the suspended position of the pressure vessel 1, the lance 9 can not be inserted from above into the container 1 in this hanging position.
  • the container 1 is deflected laterally in the arrow direction by an amount a, as shown FIG. 5 it can be seen, wherein the fastening means 13 is pivoted about the transport device 15.
  • the adapter element 8 is mounted with its attachment means 11 pivotally mounted on the hook-like elements 13.1 of the fastening means 13, whereby the adapter element 8 and thus the pressure vessel 1 remain in a vertically suspended position when the pressure vessel is deflected.
  • the pressure vessels 1 can for the first time be deflected suspended from the transport chain / transport device 14 and coated to the inside from the inside.
  • a piston 15 acts against the adapter element 8 to generate the lateral deflection movement and presses it against a stop 16 (FIG. FIG. 5 ).
  • the deflection should always be realized so that the longitudinal axis A of the pressure vessel 1 remains vertical.
  • the accessibility of the through hole 8.1 of the adapter element 8 is ensured from above, so that now the lance 9 through the through hole 8.1 of the adapter element 8 and the passage opening 6.1 of the connecting piece 6 in the container 1 to whose internal powder is retractable.
  • the adapter element 8 advantageously has a marker, a reference surface and / or a reference edge 12, which serves as reference point / zero point for determining the size of the pressure vessel 1 accommodated on the adapter element.
  • the powder coating is carried out in a known manner electrostatically either by corona application, by which the fluidized powder coating is electrostatically applied to the surface to be coated or by Tribo application, in which the electrostatic charging of the powder particles is realized by friction.
  • An electrical contact or grounding of the container is, for example, via the / Receiving means (adapter element / fastening means) and possibly the means of transport (preferably a transport chain) possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrostatic Spraying Apparatus (AREA)
EP12401190.9A 2011-09-22 2012-09-21 Verfahren und Anlage zur Herstellung eines Druckbehälters Active EP2573446B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12401190T PL2573446T3 (pl) 2011-09-22 2012-09-21 Sposób i instalacja do wytwarzania zbiornika ciśnieniowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201120051419 DE202011051419U1 (de) 2011-09-22 2011-09-22 Anlage zur Herstellung eines Druckbehälters und damit hergestellter Druckbehälter, insbesondere Druckluftbehälter
DE202012102720U DE202012102720U1 (de) 2012-07-20 2012-07-20 Anlage zum Innenbeschichten eines Behälters, insbesondere eines Druckluftbehälters

Publications (2)

Publication Number Publication Date
EP2573446A1 EP2573446A1 (de) 2013-03-27
EP2573446B1 true EP2573446B1 (de) 2018-06-20

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EP12401190.9A Active EP2573446B1 (de) 2011-09-22 2012-09-21 Verfahren und Anlage zur Herstellung eines Druckbehälters

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