EP3814020B1 - Carrying device for receiving a pipeline element, associated transport system, and production method - Google Patents
Carrying device for receiving a pipeline element, associated transport system, and production method Download PDFInfo
- Publication number
- EP3814020B1 EP3814020B1 EP19734391.6A EP19734391A EP3814020B1 EP 3814020 B1 EP3814020 B1 EP 3814020B1 EP 19734391 A EP19734391 A EP 19734391A EP 3814020 B1 EP3814020 B1 EP 3814020B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- pipeline element
- pipeline
- carrying device
- support feet
- Prior art date
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
- B05B13/0214—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe the liquid or other fluent material being applied to the whole periphery of the cross section of the elongated body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0264—Overhead conveying means, i.e. the object or other work being suspended from the conveying means; Details thereof, e.g. hanging hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0292—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work devices for holding several workpieces to be sprayed in a spaced relationship, e.g. vehicle doors spacers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
Definitions
- the present invention relates to a carrying device for receiving pipeline elements in a surface coating system, with a base body, a coupling section formed on the base body for coupling the carrying device with a ceiling-side conveyor mechanism, and a plurality of arms extending laterally from the base body.
- the invention further relates to a system for transporting at least one pipeline element within a surface coating system, with a ceiling-side conveyor mechanism, and at least two carrying devices that can be coupled to the conveyor mechanism for receiving pipeline elements.
- the invention relates to a method for producing a coated pipeline element, in particular a pipeline element of a fire extinguishing system, and such a pipeline element.
- Carrying devices for holding pipeline elements in a surface coating system are well known.
- the carrying devices are designed with the aim of holding pipes in such a way that a complete external pipe coating is possible.
- Piping elements that are to be used in fire extinguishing systems face special challenges in that they are installed unused in objects for very long periods of time and are reliably used when they are used The task of fluid transport must be ensured.
- Fire extinguishing systems are widely used, for example, in which the pipe systems carry extinguishing fluid even in the standby state and, alternatively, those in which the sprinkler pipes do not carry any extinguishing fluid in the standby state. In the latter systems, the susceptibility to corrosion inside the pipes is a particular challenge, which is why efforts have been made to reduce the corrosion resistance of pipe elements, particularly for fire extinguishing systems.
- EP 1 2153 964 and EP 2 766 653 systems and methods are described that achieve a significant improvement over the state of the art.
- the use of polymer finishing by means of autodeposition on the inside of pipes in pipe elements of fire extinguishing systems is described for the first time.
- the polymer refinement described there is extremely robust due to the ionic bonding of a polymer-based coating material to the pipe surface and makes it possible to use simple metals that are not yet corrosion-resistant per se, in particular low-alloy steel types. At the same time, very little corrosion development and even complete corrosion resistance are achieved, even over longer observation periods.
- Carrying devices known from the prior art have holding means which are inserted at least in sections into the interior of the pipe in order to enable a complete external coating of pipe elements.
- the invention was based on the object of developing a carrying device of the type mentioned in such a way that the disadvantages found in the prior art are eliminated as largely as possible.
- a carrying device that ensures a secure hold of pipeline elements and at the same time enables improved coating.
- the object is achieved in a carrying device of the type mentioned in that a receptacle with support feet arranged in pairs and spaced apart from one another is arranged on each boom, the support feet being set up to come into contact with an outer wall section of a pipeline element in order to to hold the pipeline element between the support feet.
- the invention is based on the knowledge that by means of such a carrying device with support feet arranged in pairs and spaced apart from one another, it can be ensured on the one hand that a pipeline element can be securely held by such a device and that the pipeline element experiences a certain centering, so to speak, and at the same time it is ensured that that the inside of the pipeline elements can flow freely around and the outside is only in contact with the carrying device at limited, punctual surface sections.
- This not only ensures a high coating quality overall, primarily on the inside, but at the same time provides a possibility of efficiently transporting pipeline elements within a surface coating system without having to separate such a pipeline element from the carrying device.
- the carrying device can be easily separated from a ceiling-side conveyor mechanism and then freed from the coating layer or stripped of paint.
- the invention is further developed in that the supporting feet arranged in pairs are aligned facing each other at an angle of 35° to 95°, preferably 60° to 75°, more preferably 62° to 72°, particularly preferably 64° to 70°. It has proven to be advantageous to use an angle between 60° and 75° or one of the narrower ranges for pipes of type DN150 and DN200, with the support angle for pipes of type DN150 being preferably larger than for pipes of type DN200. For big For pipes such as DN250 or DN300, it has been found to be advantageous to use an angle of 83° and 95°, preferably 85° to 90°.
- the supporting feet arranged in pairs are preferably aligned facing each other at an angle in the range of 45° to 55°, particularly preferably in the range of 48° to 52°.
- the support feet arranged in pairs have a height at their end facing away from the boom compared to the top of the boom of 30 mm to 80 mm, in particular 47 mm to 77 mm.
- the support feet each have a holding tip with a blunt side and a pointed side, the holding tip having a larger diameter on the stump side than on the pointed side.
- the stump side which has a larger diameter, serves to provide basic strength and secure connection to the boom.
- a smaller diameter of the holding tip in the area of the tip side facing a pipeline element has proven to be advantageous for the contact surface of the pipeline element with the holding tip to ensure that the coating is only affected by the holding tip in a very limited outer wall section.
- the invention is further developed in that the holding tip has a coupling recess on the stump side and a plug section corresponding to the coupling recess is formed on a base section of the support feet. In this way, the holding tip and the base section of the support feet can be permanently connected.
- the holding tip has a cylindrical section and a conical section adjacent to the cylindrical section, the conical section, in particular its cone tip, being designed to come into contact with a pipeline element.
- the relevant component geometry of the holding tip has proven to be sufficiently strong and stiff, but at the same time only minimally disrupts the flow around the pipeline element.
- the holding tip is designed as a separate, replaceable component.
- the holding tip can be made of a material that differs from the boom, and at the same time, the component that is most likely to be subject to wear due to direct contact with a pipeline element can be replaced. Removing coatings or stripping paint from the holding tips can also be carried out more easily and economically if they can be removed from the boom.
- the holding tip is preferably made of one of the following materials: free-cutting steel, in particular 9SMn28K, non-ferrous metal.
- the holding tip can preferably be made of one of the materials mentioned.
- the holding tip has a coating made of a hard metal or ceramic.
- the base body and/or the boom are partially or completely formed from one of the following: sheet metal, in particular one-piece sheet metal, non-ferrous metal.
- the material selection for the base body and/or the boom can also be made taking into account the coating process to get voted.
- the construction of the base body and boom made of sheet metal can be advantageous in order to introduce static charges into a pipeline element via the base body and boom.
- designing the components from a non-conductive material can be advantageous.
- the design of the base body as a one-piece component has also proven to be advantageous in terms of component durability.
- the invention is further developed in that at least two cantilevers are arranged on the base body at a distance from one another along a longitudinal axis of the base body.
- the distance between an upper side of a first boom and the underside of an adjacently arranged second boom is 100 mm to 500 mm, in particular 130 mm to 435 mm.
- the booms have a substantially horizontal orientation during operation according to a preferred embodiment.
- the state "in operation” is defined in the context of the present application as the position in which the carrying device is coupled to a ceiling-side conveyor mechanism, and the base body has a substantially vertical orientation and the booms have a substantially horizontal orientation.
- the term “essentially” is to be understood here as deviations from the reference horizontal or vertical of ⁇ 10°.
- the boom has a first side and a second side, the booms on the first side being arranged aligned or offset from the booms on the second side.
- the arrangement of booms on the first side and on the second side has fundamental static advantages, since when both sides of the boom are evenly equipped with the same pipeline elements, forces are prevented from being introduced into the ceiling-side conveyor mechanism on one side via the boom and base body.
- a non-aligned, offset arrangement offers the advantage that the distance between pipe elements arranged on the first side and the second side can be increased due to the offset arrangement, whereby improved flow conditions around the pipe elements are achieved depending on the type of coating and also depending on the pipe element diameter can.
- the carrying device can possibly be designed to be more compact with an offset arrangement of the arms on the first and second sides.
- the invention has been described above with reference to a carrying device.
- the invention relates to a system for transporting at least one pipeline element within a surface coating system, with a ceiling-side conveyor mechanism, and at least two carrying devices that can be coupled to the conveyor mechanism for receiving pipeline elements.
- the invention solves the problem described at the outset in relation to the system described at the outset, in which the carrying devices attack the same pipe element at a distance from one another and are designed according to one of the exemplary embodiments mentioned above.
- the invention relates to a method for producing a coated pipeline element, in particular a pipeline element of a fire extinguishing system.
- the invention solves the problem described at the outset in relation to the method by the steps: providing a pipeline element to be coated, placing the pipeline element on two supporting devices coupled to a ceiling-side conveying mechanism, at least one of the supporting devices being designed according to one of the above-mentioned exemplary embodiments, conveying the Pipe element by means of the conveyor mechanism to a coating device, and coating the pipe element in the coating device.
- a further advantage of the method is that the pipeline element only has to be placed on the support devices once and can then remain on the support devices during coating.
- the conveying mechanism with the carrying devices thus serves to transport a pipeline element between different coating stations, but at the same time also serves as a holder and guide for the pipeline element during the individual coating steps.
- a highly automated coating process for pipeline elements can be implemented, in which pipeline elements only have to be applied once to a support device and can then be coated fully automatically and without further position changes.
- the method is further developed in that the coating is carried out using a polymer coating process, wherein the pipe element remains on the support device during the coating and the pipe element is preferably inclined relative to a horizontal during the coating.
- the coating is preferably carried out in particular by means of chemical autodeposition, preferably by immersing the pipeline element in an immersion bath which contains a polymer-based chemical autodeposition material.
- the autodeposition material preferably contains polymeric components which are ionically bound to the wall of the pipeline elements and is preferably in the form of an aqueous emulsion or dispersion.
- the autodeposition material is preferably acidic in its liquid phase, particularly preferably it has a pH in a range from 1 to 5, and especially preferably a starter material in the form of metal halides.
- Iron halides in particular are suggested as metal halides for iron-containing metals, particularly preferably iron(III) fluoride.
- Zinc halides in particular are suggested as metal halides for zinc-containing metals.
- the metal halides release metal ions, in the case of an iron-containing pipeline element, in particular iron ions, in particular Fe2+ ions, or in the case of a zinc-containing pipeline element, in particular zinc ions, which destabilize the polymeric components in the autodeposition material, as a result of which an accumulation occurs the metal surface of the pipeline elements.
- the dipping step is continued in one or more dips until the polymer-based layer attached to the inside of the pipe element has a thickness in a range from 7 ⁇ m to 80 ⁇ m, preferably a thickness in a range from 7 ⁇ m to 30 ⁇ m.
- the aforementioned values relate to the dry layer thickness and in particular to an increase in thickness relative to the uncoated state.
- the coating in a preferred embodiment comprises a powder coating process, wherein the pipeline element remains on the support device during the coating.
- the powder coating is preferably carried out after the polymer-based layer has been applied, without having to remove the pipeline elements from the carrying device in the meantime.
- the pipeline element is subjected to at least partial thermal aftertreatment after the surface coating has been applied.
- powders intended for coating be electrostatically charged before and/or during coating. The adhesion of the powder to the workpiece to be coated, in particular the pipeline element, can be positively influenced in this way without electrodes, etc., having to be attached to the element to be coated.
- the pipeline element intended for coating is electrostatically charged before and/or during coating.
- a procedure has proven to be advantageous in order to ensure a uniform and high-quality coating, especially inside a pipeline element.
- a pipeline element is described, in particular produced in a method according to one of the preferred embodiments described above, with a first end region and an oppositely arranged second end region, with a wall with an inner surface and a outer surface, a surface coating on the outer surface.
- the pipeline element has two uncoated sections arranged in the area of the ends of the wall on the outer surface.
- the exemplary embodiment provides pipeline elements in which the surface area could be reduced to only 4 essentially punctiform uncoated areas.
- the inside of the pipeline element remains free of such defects.
- two of the uncoated sections are preferably arranged along a circumference of the pipeline element at an angle of 35° to 95°, preferably 60° to 75°, more preferably 62° to 72°, particularly preferably 64° to 70° to one another . It has proven to be advantageous to use an angle between 60° and 75° or one of the narrower ranges for pipes of type DN150 and DN200, with the support angle for pipes of type DN150 being preferably larger than for pipes of type DN200. For large pipes, such as type DN250 or DN300, it has been found advantageous to use an angle of 83° and 95°, preferably 85° to 90°.
- two of the uncoated sections are preferably along the circumference of the pipeline element at an angle of 45° to 55°, particularly preferably at an angle of 48° to 52° , arranged spaced apart from each other.
- a surface coating is arranged on the inner surface.
- the surface coating is designed as a polymer coating on the inner and outer surfaces.
- the surface coating on the outer surface has a powder coating in addition to the polymer-based layer or is designed as a powder coating.
- the pipeline element is made of a metal suitable for chemical autodeposition, in particular an iron-containing and/or zinc-containing metal
- the polymer-based layer contains a metallic component, preferably in the form of metal ions, in the case of an iron-containing metal, particularly preferably in the form of iron ions and in the case of a metal containing zinc in the form of zinc ions.
- the polymer-based layer has a thickness in a range from 7 ⁇ m to 80 ⁇ m, preferably a thickness in a range from 7 ⁇ m to 30 ⁇ m.
- the aforementioned values relate to the dry layer thickness and in particular to an increase in pipe thickness relative to the uncoated state.
- the pipeline element has a nominal diameter in a range from DN15 to DN300, preferably DN 32 to DN 80.
- the nominal diameter ranges in the inch system are from 1 ⁇ 2" (NPS) to 12" (NPS), particularly preferably in a range from 1 1 ⁇ 4" (NPS) to 3" (NPS).
- the pipeline element preferably has a longitudinal axis and a pipe length in the direction of the longitudinal axis in a range of 1 m or more, more preferably in a range of 3 m or more, particularly preferably in a range of 5 m or more.
- FIG. 1 shows an enlarged detailed view of a section of a carrying device 2 according to the invention.
- the carrying device 2 has a base body 6, which is in the Figure 1 is only partially shown.
- a boom 8 is arranged on the base body 6.
- the base body 6 extends in a vertical direction during operation, ie in a state in which the carrying device 2 is connected to a ceiling-side conveyor mechanism (not shown), while the boom 8 extends in a horizontal direction in the operating position.
- a receptacle 10 for receiving a pipeline element 4.
- the receptacle 10 has two support feet 12, 12 ', which are aligned facing each other.
- the angle of inclination at which the support feet 12, 12 'face each other is designated ⁇ .
- the support feet 12, 12' come into contact with wall sections 14, 14' of the pipeline element 4. These wall sections of the pipe element 14, 14' are located on the outside of the pipe element 4.
- the support feet 12, 12' are designed in two parts. First, a base section of the support feet 24, 24 'is arranged immediately adjacent to the boom 8.
- the base section of the support feet 24, 24' is designed as a plug section 26, 26' towards its end.
- a holding tip 16, 16' can be applied to the plug section 26, 26'.
- the holding tip 16, 16' in turn has a blunt side 18, 18' and a tip side 20, 20'.
- a coupling recess 22, 22' is formed in the stump side 18, 18', which corresponds to the plug section 26, 26' of the base section of the support feet 24, 24'.
- the holding tip 16, 16 ' is arranged interchangeably on the base section of the support feet 24, 24'.
- the pipe element 4 facing section of the holding tip 16, 16 ' is spaced from the top of the boom 8 by means of the height h.
- FIG 2 a complete exemplary embodiment of a carrying device 2 is shown.
- a total of seven arms 8 are arranged on the base body 6. Starting from the base body 6, the arms 8 extend in one direction. To ensure that the flow around pipe elements 4 that can be arranged on the carrying device 2 is as undisturbed as possible, each adjacent arm 8 has a distance d1. This distance d1 is largely determined by the pipe element diameter for which a carrying device 2 is intended and designed.
- the figure also shows the basic sections of the support feet 24, 24'.
- a coupling section 28 is also formed on the base body 6. This coupling section 28 serves to couple the carrying device 2 with a conveyor device, in particular with a ceiling-side conveyor mechanism.
- FIG Figure 3 An alternative embodiment of a carrying device 102 is shown in FIG Figure 3 shown.
- the carrying device 102 has a base body 106 on which arms 108 are arranged.
- the carrying device 102 has four arms 108, with adjacent arms 108 being spaced apart by a distance d2.
- the carrying device 102 is designed and provided for larger pipe element diameters. The increased distance d2 between two arms 108 ensures, even with larger pipe element diameters, that air flows around them from all sides as well as possible during a coating process, which is particularly relevant for powder coatings.
- the booms also have 108 compared to those in the Figure 2
- the booms 8 shown have higher material thicknesses in order to accommodate the higher weight of pipeline elements 4 with larger diameters. It should be noted that also in the Figure 3 only the basic sections of the support feet 124, 124 'are shown, but not the corresponding holding supports 116, 116'.
- FIG Figure 4 Another alternative embodiment of a carrying device 202 is shown in FIG Figure 4 shown.
- the carrying device 202 again has a base body 206 on which an arm 208 is arranged.
- the carrying device 202 is, for example, equipped with a ceiling-side conveyor mechanism via a coupling section 228 connectable.
- Carrying device 202 shown is suitable for larger pipe element diameters.
- the boom 208 has a strut 232, and the carrying device 228 is only set up to hold a single pipeline element 4.
- FIG. 5 Another alternative embodiment of a carrying device 302 is still in Figure 5 shown.
- Outriggers 308 are arranged on a base body 306, with the outriggers 308 extending in a first direction (in the plane of the drawing, starting from the base body 306 to the right) and in a second direction (starting from the base body 306 to the left).
- pipe elements 4 can be applied to the base sections of the support feet 324, 324 'on the arms 308 on both sides of the base body 306 using holding tips (not shown).
- Figure 6 first shows holding tips 16, 16 ', which have a blunt side 18 and a tip side 20. Both the stub side 18 and the tip side 20 are cylindrical, with the diameter of the stub side 18 being larger than the diameter of the tip side 20.
- the holding tip 16 comes into contact with a pipe element 4 (not shown) by means of a contact surface 30.
- a coupling recess is formed in the stump side 18, which can be designed as a bore, for example. The coupling recess thus defines a socket by means of which the holding tip 16 can be placed on a correspondingly designed plug section 26.
- the tip geometry shown ensures that the contact surface 30 with a pipe element 4 (not shown) is as small as possible and a pipe element 4 can be flowed around in the best possible way, but at the same time the holding tip 16 also ensures the required strength and rigidity due to its geometry.
- FIG Figure 7 An alternative embodiment of a retaining tip 116, 116' is shown in FIG Figure 7 shown.
- the holding tip 116, 116 'again has a blunt side 118 and a tip side 120, with a coupling recess 122 being formed in the blunt side 118.
- a cone tip 130 is arranged on the tip side 120 adjacent to the tip side 120 and at the end facing away from the truncated side 118. By means of this cone tip 130, the contact surface to a pipeline element 4 (not shown) further reduce without adversely affecting the strength and rigidity of the holding tip 116, 116 '.
- a further alternative embodiment of a holding tip 216, 216' initially again has a blunt side 218 with a coupling recess 222 formed therein.
- the top side 220 is in Figure 8 However, it is designed in the shape of a truncated cone and defines a contact surface 230 on the side facing away from the truncated side 218.
- Holding tips 16, 16 ', 116, 116' shown in the Figure 8 shown holding tip 216, 216 ' has a higher strength and rigidity, and is therefore particularly suitable, for example, for very heavy pipe elements 4, but also minimally influences the flow around a pipe element 4.
- Figure 9 shows a pipeline element 4 in a perspective view and in a sectional view.
- the pipeline element 4 has a first end region 32 and a second end region 34.
- the tubular element 4 has a polymer coating 38, 38 'on its inside and on its outside.
- a powder coating 40 is also applied to the outside.
- Uncoated sections 36, 36', 36", 36"' also referred to as defects, are arranged at the end regions 32, 34. The defects primarily relate to the layer area of the powder coating 40, although the polymer coating 38 'can be formed with a reduced layer thickness in these areas, or at least not be present locally.
- the position of the uncoated sections 36, 36' corresponds to the angle of inclination at which the support feet 12, 12' face each other and is therefore also designated ⁇ .
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- Spray Control Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Die vorliegende Erfindung betrifft eine Tragevorrichtung zur Aufnahme von Rohrleitungselementen in einer Oberflächenbeschichtungsanlage, mit einem Grundkörper, einem an dem Grundkörper ausgebildeten Kopplungsabschnitt zur Kopplung der Tragevorrichtung mit einem deckenseitigen Fördermechanismus, und mehreren, sich seitlich von dem Grundkörper aus erstreckenden Auslegern. Die Erfindung betrifft ferner ein System zum Transport mindestens eines Rohrleitungselements innerhalb einer Oberflächenbeschichtungsanlage, mit einem deckenseitigen Fördermechanismus, und mindestens zwei mit dem Fördermechanismus koppelbaren Tragevorrichtungen zur Aufnahme von Rohrleitungselementen. In einem weiteren Aspekt betrifft die Erfindung ein Verfahren zum Herstellen eines beschichteten Rohrleitungselements, insbesondere eines Rohrleitungselements einer Feuerlöschanlage, sowie ein solches Rohrleitungselement.The present invention relates to a carrying device for receiving pipeline elements in a surface coating system, with a base body, a coupling section formed on the base body for coupling the carrying device with a ceiling-side conveyor mechanism, and a plurality of arms extending laterally from the base body. The invention further relates to a system for transporting at least one pipeline element within a surface coating system, with a ceiling-side conveyor mechanism, and at least two carrying devices that can be coupled to the conveyor mechanism for receiving pipeline elements. In a further aspect, the invention relates to a method for producing a coated pipeline element, in particular a pipeline element of a fire extinguishing system, and such a pipeline element.
Tragevorrichtungen zur Aufnahme von Rohrleitungselementen in einer Oberflächenbeschichtungsanlage sind allgemein bekannt. Typischerweise sind die Tragevorrichtungen mit dem Ziel ausgelegt, Rohre so zu halten, dass eine lückenlose äußere Rohrbeschichtung möglich wird.Carrying devices for holding pipeline elements in a surface coating system are well known. Typically, the carrying devices are designed with the aim of holding pipes in such a way that a complete external pipe coating is possible.
Für Rohrleitungselemente, die in Feuerlöschanlagen eingesetzt werden sollen, ergeben sich besondere Herausforderungen dergestalt, dass sie über sehr lange Zeiträume ungenutzt in Objekten installiert sind, und im Einsatzfall zuverlässig die ihnen zukommende Aufgabe des Fluidtransports gewährleisten müssen. Weit verbreitet sind etwa Feuerlöschanlagen, bei denen die Rohrleitungssysteme auch im Bereitschaftszustand Löschflüssigkeit führen und alternativ solche, die im Bereitschaftszustand in den Sprinklerleitungen noch keine Löschflüssigkeit führen. Bei den letztgenannten Systemen ist die Korrosionsanfälligkeit im Inneren der Rohre eine besondere Herausforderung, weswegen Bemühungen unternommen worden sind, die Korrosionsbeständigkeit von Rohrleitungselementen insbesondere für Feuerlöschanlagen zu senken.Piping elements that are to be used in fire extinguishing systems face special challenges in that they are installed unused in objects for very long periods of time and are reliably used when they are used The task of fluid transport must be ensured. Fire extinguishing systems are widely used, for example, in which the pipe systems carry extinguishing fluid even in the standby state and, alternatively, those in which the sprinkler pipes do not carry any extinguishing fluid in the standby state. In the latter systems, the susceptibility to corrosion inside the pipes is a particular challenge, which is why efforts have been made to reduce the corrosion resistance of pipe elements, particularly for fire extinguishing systems.
In
Allerdings stellt die industrielle Beschichtung von Rohrinnenseiten derzeit eine besondere Herausforderung dar. So hat sich gezeigt, dass aus dem Stand der Technik vorbekannte Tragevorrichtungen, die dazu verwendet werden, Rohrleitungselemente in Oberflächenbeschichtungsanlagen zu unterschiedlichen Bearbeitungs- bzw. Beschichtungspositionen zu verbringen, einer gleichmäßigen Beschichtung der Rohrinnenseiten im Wege stehen.However, the industrial coating of the inside of pipes currently represents a particular challenge. It has been shown that carrying devices known from the prior art, which are used to move pipe elements in surface coating systems to different processing or coating positions, ensure a uniform coating of the inside of the pipe stand in the way.
Aus dem Stand der Technik vorbekannte Tragevorrichtungen weisen Haltemittel auf, die zumindest abschnittsweise in das Rohrinnere eingebracht werden, um eine lückenlose äußere Beschichtung von Rohrelementen zu ermöglichen. Dies führt jedoch dazu, dass im Kontaktbereich mit einem Rohrelement an der Rohrinnenseite eine nur ungenügende Beschichtung aufgetragen werden kann und Rohre, die mit solchen Tragevorrichtungen gehalten wurden, korrosionsanfällige Stellen auf der Rohrinnenseite aufweisen.Carrying devices known from the prior art have holding means which are inserted at least in sections into the interior of the pipe in order to enable a complete external coating of pipe elements. However, this means that in the area of contact with a pipe element on the inside of the pipe, only insufficient coating can be applied and pipes that have been held with such support devices have areas on the inside of the pipe that are susceptible to corrosion.
Vor diesem Hintergrund lag der Erfindung die Aufgabe zugrunde, eine Tragevorrichtung der eingangs bezeichneten Art dahingehend weiterzubilden, dass die im Stand der Technik aufgefundenen Nachteile möglichst weitgehend behoben werden. Insbesondere war eine Tragevorrichtung anzugeben, die eine sichere Aufnahme von Rohrleitungselementen gewährleistet und gleichzeitig verbesserte Beschichtung ermöglicht.Against this background, the invention was based on the object of developing a carrying device of the type mentioned in such a way that the disadvantages found in the prior art are eliminated as largely as possible. There was one in particular Specify a carrying device that ensures a secure hold of pipeline elements and at the same time enables improved coating.
Erfindungsgemäß wird die Aufgabe bei einer Tragevorrichtung der eingangs genannten Art dadurch gelöst, dass an jedem Ausleger eine Aufnahme mit paarweise angeordnet und zueinander beabstandeten Stützfüßen angeordnet ist, wobei die Stützfüße dazu eingerichtet sind, mit jeweils einem äußeren Wandabschnitt eines Rohrleitungselements in Kontakt zu treten, um das Rohrleitungselement zwischen den Stützfüßen zu halten.According to the invention, the object is achieved in a carrying device of the type mentioned in that a receptacle with support feet arranged in pairs and spaced apart from one another is arranged on each boom, the support feet being set up to come into contact with an outer wall section of a pipeline element in order to to hold the pipeline element between the support feet.
Der Erfindung liegt die Erkenntnis zugrunde, dass mittels einer solchen Tragevorrichtung mit paarweise angeordneten und zueinander beabstandeten Stützfüßen zum einen sichergestellt werden kann, dass ein Rohrleitungselement sicher von einer solchen Vorrichtung gehalten werden kann und das Rohrleitungselement gleichsam eine gewisse Zentrierung erfährt, und gleichzeitig sichergestellt ist, dass die Innenseite der Rohrleitungselemente frei umströmbar ist und auch die Außenseite lediglich an begrenzten, punktuellen Oberflächenabschnitten mit der Tragevorrichtung in Kontakt steht.The invention is based on the knowledge that by means of such a carrying device with support feet arranged in pairs and spaced apart from one another, it can be ensured on the one hand that a pipeline element can be securely held by such a device and that the pipeline element experiences a certain centering, so to speak, and at the same time it is ensured that that the inside of the pipeline elements can flow freely around and the outside is only in contact with the carrying device at limited, punctual surface sections.
Hierdurch wird es vorteilhaft möglich, dass ein Rohrleitungselement während des gesamten Beschichtungsvorganges, d.h. während des Ablaufes unterschiedlicher Beschichtungsschritte, auf der Tragevorrichtung verbleiben kann, und beispielsweise zusammen mit der Tragevorrichtung in unterschiedliche Beschichtungsbäder eingetaucht werden kann. Hierdurch wird insgesamt nicht nur eine hohe Beschichtungsqualität, schwerpunktmäßig an der Innenseite, sichergestellt und gleichzeitig wird eine Möglichkeit bereitgestellt, Rohrleitungselemente effizient innerhalb einer Oberflächenbeschichtungsanlage zu transportieren, ohne dass ein solches Rohrleitungselement von der Tragevorrichtung zu trennen wäre. Weiterhin kann die Tragevorrichtung nach Ende eines Beschichtungsvorganges und nachdem die Rohrleitungselemente von der Tragevorrichtung entfernt worden sind, auf einfache Weise von einem deckenseitigen Fördermechanismus getrennt werden und sodann von der Beschichtungsschicht befreit bzw. entlackt werden.This advantageously makes it possible for a pipeline element to remain on the carrying device during the entire coating process, i.e. during the course of different coating steps, and, for example, to be immersed in different coating baths together with the carrying device. This not only ensures a high coating quality overall, primarily on the inside, but at the same time provides a possibility of efficiently transporting pipeline elements within a surface coating system without having to separate such a pipeline element from the carrying device. Furthermore, after the end of a coating process and after the pipeline elements have been removed from the carrying device, the carrying device can be easily separated from a ceiling-side conveyor mechanism and then freed from the coating layer or stripped of paint.
Die Erfindung wird dadurch weitergebildet, dass die paarweise angeordneten Stützfüße in einem Winkel von 35° bis 95°, vorzugsweise 60° bis 75°, weiter vorzugsweise 62° bis 72°, besonders bevorzugt 64° bis 70° einander zugewandt ausgerichtet sind. Es hat sich als vorteilhaft herausgestellt, für Rohre vom Typ DN150 und DN200 einen Winkel zwischen 60° und 75° oder einem der engeren Bereich zu verwenden, wobei der Auflagewinkel bei Rohren vom Typ DN150 vorzugsweise größer ist als für Rohre vom Typ DN200. Für große Rohre, etwa vom Typ DN250 oder DN300, hat es sich als vorteilhaft herausgestellt, einen Winkel von 83° und 95° zu verwenden, vorzugsweise von 85° bis 90°. Gemäß einer alternativen Ausführungsform, welche insbesondere für Rohre vom Typ DN100 oder DN125 vorgesehen ist, sind die paarweise angeordneten Stützfüße vorzugsweise in einem Winkel im Bereich von 45° bis 55°, besonders bevorzugt im Bereich von 48° bis 52°, einander zugewandt ausgerichtet.The invention is further developed in that the supporting feet arranged in pairs are aligned facing each other at an angle of 35° to 95°, preferably 60° to 75°, more preferably 62° to 72°, particularly preferably 64° to 70°. It has proven to be advantageous to use an angle between 60° and 75° or one of the narrower ranges for pipes of type DN150 and DN200, with the support angle for pipes of type DN150 being preferably larger than for pipes of type DN200. For big For pipes such as DN250 or DN300, it has been found to be advantageous to use an angle of 83° and 95°, preferably 85° to 90°. According to an alternative embodiment, which is intended in particular for pipes of type DN100 or DN125, the supporting feet arranged in pairs are preferably aligned facing each other at an angle in the range of 45° to 55°, particularly preferably in the range of 48° to 52°.
Es hat sich gezeigt, dass eine Ausrichtung der Stützfüße in dem betreffenden Winkelbereich relativ zueinander für unterschiedliche Rohrleitungselement-Durchmesser vorteilhaft dazu geeignet ist, die Rohrleitungselemente sicher aufzunehmen und zwischen den Stützfüßen zu zentrieren. Das Risiko, dass etwa eines der Rohrleitungselemente während der Verbringung selbiger mittels der erfindungsgemäßen Tragvorrichtung von der Tragvorrichtung rutscht, lässt sich durch die entsprechende Ausrichtung der Stützfüße zueinander minimieren.It has been shown that an alignment of the support feet in the relevant angular range relative to one another for different pipe element diameters is advantageously suitable for securely receiving the pipe elements and centering them between the support feet. The risk that one of the pipeline elements slips from the carrying device while the same is being moved using the carrying device according to the invention can be minimized by appropriately aligning the support feet to one another.
Gemäß einer bevorzugten Ausführungsform weisen die paarweise angeordneten Stützfüße an ihrem dem Ausleger abgewandten Ende eine Höhe gegenüber der Oberseite des Auslegers von 30 mm bis 80 mm auf, insbesondere 47 mm bis 77 mm.According to a preferred embodiment, the support feet arranged in pairs have a height at their end facing away from the boom compared to the top of the boom of 30 mm to 80 mm, in particular 47 mm to 77 mm.
Für den betreffenden Höhenbereich hat sich für eine Vielzahl von Rohrleitungselementen gezeigt, dass selbige sicher auch im Bereich der Stützfüße von einem Beschichtungsfluid umströmt werden können, und somit auch eine hohe Beschichtungsqualität im Umfeld des Kontaktbereiches zwischen Stützfüßen und Rohrleitungselement sichergestellt werden kann. Auch für den Anwendungsfall, dass - etwa im Falle einer Pulverbeschichtung - entweder das Pulver oder auch das Rohrleitungselement eine statische Aufladung erfährt, kann durch die Stützfüße in Zusammenschau mit der betreffenden Höhe der Stützfüße sichergestellt werden, dass sich Beschichtungspulver gleichmäßig und weitestgehend ungestört an dem Rohrleitungselement anordnen kann.For the height range in question, it has been shown for a large number of pipeline elements that a coating fluid can flow around them safely, even in the area of the support feet, and thus a high coating quality can be ensured in the area of the contact area between the support feet and the pipe element. Even in the event that - for example in the case of powder coating - either the powder or the pipeline element experiences a static charge, the support feet, in conjunction with the relevant height of the support feet, can ensure that coating powder is applied evenly and largely undisturbed to the pipeline element can arrange.
Ferner ist bevorzugt, dass die Stützfüße jeweils eine Haltespitze mit einer Stumpfseite und einer spitzen Seite aufweisen, wobei die Haltespitze an der Stumpfseite einen größeren Durchmesser als an der spitzen Seite aufweist.Furthermore, it is preferred that the support feet each have a holding tip with a blunt side and a pointed side, the holding tip having a larger diameter on the stump side than on the pointed side.
Zunächst dient die mit einem größeren Durchmesser versehene Stumpfseite der Bereitstellung einer Grundfestigkeit und der sicheren Verbindbarkeit mit dem Ausleger. Ein kleinerer Durchmesser der Haltespitze im Bereich der einem Rohrleitungselement zugewandten Spitzenseite hat sich als vorteilhaft dafür herausgestellt, die Kontaktfläche des Rohrleitungselementes mit der Haltespitze zu minimieren, um sicherzustellen, dass die Beschichtung lediglich in einem sehr begrenzten äußeren Wandabschnitt durch die Haltespitze beeinträchtigt wird.First of all, the stump side, which has a larger diameter, serves to provide basic strength and secure connection to the boom. A smaller diameter of the holding tip in the area of the tip side facing a pipeline element has proven to be advantageous for the contact surface of the pipeline element with the holding tip to ensure that the coating is only affected by the holding tip in a very limited outer wall section.
Die Erfindung wird dadurch weitergebildet, dass die Haltespitze an der Stumpfseite eine Kupplungsausnehmung aufweist und an einem Grundabschnitt der Stützfüße ein mit der Kupplungsausnehmung korrespondierender Steckerabschnitt ausgebildet ist. Auf diese Weise lassen sich die Haltespitze sowie der Grundabschnitt der Stützfüße dauerhaft haltbar verbinden.The invention is further developed in that the holding tip has a coupling recess on the stump side and a plug section corresponding to the coupling recess is formed on a base section of the support feet. In this way, the holding tip and the base section of the support feet can be permanently connected.
Gemäß einer bevorzugten Ausführungsform weist die Haltespitze einen zylindrischen Abschnitt auf und einen an den zylindrischen Abschnitt angrenzenden kegelförmigen Abschnitt, wobei der kegelförmige Abschnitt, insbesondere dessen Kegelspitze, dazu eingerichtet ist, mit einem Rohrleitungselement in Kontakt zu treten. Die betreffende Bauteilgeometrie der Haltespitze hat sich als zum einen ausreichend fest und steif herausgestellt, stört jedoch gleichzeitig die Umströmung des Rohrleitungselementes nur minimal.According to a preferred embodiment, the holding tip has a cylindrical section and a conical section adjacent to the cylindrical section, the conical section, in particular its cone tip, being designed to come into contact with a pipeline element. The relevant component geometry of the holding tip has proven to be sufficiently strong and stiff, but at the same time only minimally disrupts the flow around the pipeline element.
Die Erfindung wird dadurch weitergebildet, dass die Haltespitze als separates, austauschbares Bauteil ausgebildet ist. Somit kann die Haltespitze zum einen aus einem von dem Ausleger abweichenden Material ausgebildet sein, und gleichzeitig kann jenes Bauteil, welches am ehesten einem Verschleiß durch direkten Kontakt mit einem Rohrleitungselement unterliegt, ausgetauscht werden. Auch lässt sich ein Entfernen von Beschichtungen bzw. ein Entlacken der Haltespitzen leichter und ökonomischer durchführen, wenn diese von dem Ausleger entfernbar sind.The invention is further developed in that the holding tip is designed as a separate, replaceable component. Thus, on the one hand, the holding tip can be made of a material that differs from the boom, and at the same time, the component that is most likely to be subject to wear due to direct contact with a pipeline element can be replaced. Removing coatings or stripping paint from the holding tips can also be carried out more easily and economically if they can be removed from the boom.
Die Haltespitze ist vorzugsweise aus einem der folgenden Werkstoffe ausgebildet: Automatenstahl, insbesondere 9SMn28K, Nichteisenmetall. Je nach Anwendungsbereich im Hinblick auf das anzuwendende Beschichtungsverfahren oder auch im Hinblick auf das aufzunehmende Rohrleitungselementmaterial kann die Haltespitze vorzugsweise aus einem der genannten Werkstoffe ausgebildet sein. Ferner ist bevorzugt, dass die Haltespitze eine Beschichtung aus einem Hartmetall oder aus Keramik aufweist.The holding tip is preferably made of one of the following materials: free-cutting steel, in particular 9SMn28K, non-ferrous metal. Depending on the area of application with regard to the coating process to be used or also with regard to the pipe element material to be held, the holding tip can preferably be made of one of the materials mentioned. Furthermore, it is preferred that the holding tip has a coating made of a hard metal or ceramic.
Gemäß einer bevorzugten Weiterbildung sind der Grundkörper und/oder der Ausleger teilweise oder vollständig aus einem der folgenden ausgebildet: Blech, insbesondere einstückiges Blech, Nichteisenmetall. Auch für den Grundkörper und/oder den Ausleger kann die Werkstoffauswahl etwa unter Berücksichtigung des Beschichtungsverfahrens gewählt werden. So kann etwa die Ausbildung von Grundkörper und Ausleger aus Blech vorteilhaft sein, um statische Aufladungen über Grundkörper und Ausleger in ein Rohrleitungselement einzubringen. Für andere Anwendungsfälle wiederum kann die Ausbildung der Komponenten aus einem nichtleitenden Material von Vorteil sein. Die Ausbildung des Grundkörpers als einstückiges Bauteil hat sich darüber hinaus in Bezug auf die Bauteilhaltbarkeit als vorteilhaft erwiesen.According to a preferred development, the base body and/or the boom are partially or completely formed from one of the following: sheet metal, in particular one-piece sheet metal, non-ferrous metal. The material selection for the base body and/or the boom can also be made taking into account the coating process to get voted. For example, the construction of the base body and boom made of sheet metal can be advantageous in order to introduce static charges into a pipeline element via the base body and boom. For other applications, designing the components from a non-conductive material can be advantageous. The design of the base body as a one-piece component has also proven to be advantageous in terms of component durability.
Die Erfindung wird dadurch weitergebildet, dass an dem Grundkörper entlang einer Längsachse des Grundkörpers mindestens zwei Ausleger beabstandet zueinander angeordnet sind. Mit anderen Worten ist bevorzugt, dass zwei oder mehr Ausleger im Betrieb beabstandet übereinander angeordnet sind. Hierdurch ergibt sich der Vorteil, dass mittels einer einzigen Tragevorrichtung bzw. mittels einer Kombination zweier Tragevorrichtungen mehrere Rohrleitungselemente transportiert und beschichtet werden können.The invention is further developed in that at least two cantilevers are arranged on the base body at a distance from one another along a longitudinal axis of the base body. In other words, it is preferred that two or more booms are arranged one above the other at a distance during operation. This results in the advantage that several pipeline elements can be transported and coated using a single carrying device or by means of a combination of two carrying devices.
Vorzugsweise beträgt der Abstand zwischen einer Oberseite eines ersten Auslegers und der Unterseite eines benachbart angeordneten zweiten Auslegers 100 mm bis 500 mm, insbesondere 130 mm bis 435 mm.Preferably, the distance between an upper side of a first boom and the underside of an adjacently arranged second boom is 100 mm to 500 mm, in particular 130 mm to 435 mm.
Hierdurch wird sichergestellt, dass die Rohrleitungselemente während eines Beschichtungsvorganges omnidirektional auf optimale Weise umströmt werden können und sichergestellt ist, dass keine Störung der Beschichtungsqualität durch benachbarte Ausleger mit darauf angeordneten Rohrleitungselementen auftritt. Eine betreffende Beabstandung der Ausleger zueinander hat sich darüber hinaus zur Ermöglichung einer optimalen thermischen Nachbehandelbarkeit als vorteilhaft erwiesen.This ensures that the pipeline elements can be flowed around in an omnidirectional manner in an optimal manner during a coating process and it is ensured that no disruption to the coating quality occurs due to adjacent booms with pipeline elements arranged thereon. A relevant spacing of the cantilevers from one another has also proven to be advantageous in enabling optimal thermal post-treatment.
Weiterhin weisen die Ausleger im Betrieb gemäß einer bevorzugten Ausführungsform eine im Wesentlichen horizontale Ausrichtung auf. Der Zustand "im Betrieb" ist dabei im Rahmen der vorliegenden Anmeldung definiert als jene Position, bei der die Tragevorrichtung mit einem deckenseitigen Fördermechanismus gekoppelt ist, und der Grundkörper eine im Wesentlichen vertikale Ausrichtung aufweist sowie die Ausleger eine im Wesentlichen horizontale Ausrichtung. Der Ausdruck "im Wesentlichen" ist vorliegend zu verstehen als Abweichungen von der bezugsbildenden Horizontalen bzw. Vertikalen von ±10°.Furthermore, the booms have a substantially horizontal orientation during operation according to a preferred embodiment. The state "in operation" is defined in the context of the present application as the position in which the carrying device is coupled to a ceiling-side conveyor mechanism, and the base body has a substantially vertical orientation and the booms have a substantially horizontal orientation. The term “essentially” is to be understood here as deviations from the reference horizontal or vertical of ±10°.
Gemäß einer bevorzugten Ausführungsform weist der Ausleger eine erste Seite und eine zweite Seite auf, wobei die Ausleger an der ersten Seite zu den Auslegern an der zweiten Seite fluchtend oder versetzt angeordnet sind.According to a preferred embodiment, the boom has a first side and a second side, the booms on the first side being arranged aligned or offset from the booms on the second side.
Zunächst hat die Anordnung von Auslegern an der ersten Seite und an der zweiten Seite grundlegend statische Vorteile, da bei gleichmäßiger Bestückung beider Seiten der Ausleger mit gleichen Rohrleitungselementen vermieden wird, dass Kräfte einseitig über Ausleger und Grundkörper in den deckenseitigen Fördermechanismus eingeleitet werden.First of all, the arrangement of booms on the first side and on the second side has fundamental static advantages, since when both sides of the boom are evenly equipped with the same pipeline elements, forces are prevented from being introduced into the ceiling-side conveyor mechanism on one side via the boom and base body.
Eine nichtfluchtende, versetzte Anordnung, bietet den Vorteil, dass sich der Abstand zwischen auf der ersten Seite und der zweiten Seite angeordneten Rohrleitungselementen aufgrund der versetzten Anordnung erhöhen lässt, wodurch je nach Art der Beschichtung und auch je nach Rohrleitungselementdurchmesser verbesserte Umströmungsverhältnisse um die Rohrleitungselemente erzielt werden können. Unter Umständen lässt sich die Tragevorrichtung je nach Rohrleitungselementdurchmesser bei einer versetzten Anordnung der Ausleger an der ersten und der zweiten Seite kompakter ausbilden.A non-aligned, offset arrangement offers the advantage that the distance between pipe elements arranged on the first side and the second side can be increased due to the offset arrangement, whereby improved flow conditions around the pipe elements are achieved depending on the type of coating and also depending on the pipe element diameter can. Depending on the pipe element diameter, the carrying device can possibly be designed to be more compact with an offset arrangement of the arms on the first and second sides.
Die Erfindung ist vorstehend unter Bezugnahme auf eine Tragevorrichtung beschrieben worden. In einem weiteren Aspekt betrifft die Erfindung ein System zum Transport mindestens eines Rohrleitungselements innerhalb einer Oberflächenbeschichtungsanlage, mit einem deckenseitigen Fördermechanismus, und mindestens zwei mit dem Fördermechanismus koppelbaren Tragevorrichtungen zur Aufnahme von Rohrleitungselementen.The invention has been described above with reference to a carrying device. In a further aspect, the invention relates to a system for transporting at least one pipeline element within a surface coating system, with a ceiling-side conveyor mechanism, and at least two carrying devices that can be coupled to the conveyor mechanism for receiving pipeline elements.
Die Erfindung löst die eingangs bezeichnete Aufgabe in Bezug auf das eingangs bezeichnete System, in dem die Tragevorrichtungen beabstandet zueinander an jeweils dasselbe Rohrleitungselement angreifen und nach einem der oben genannten Ausführungsbeispiele ausgebildet sind.The invention solves the problem described at the outset in relation to the system described at the outset, in which the carrying devices attack the same pipe element at a distance from one another and are designed according to one of the exemplary embodiments mentioned above.
Das System macht sich die gleichen Vorteile und bevorzugten Ausführungsformen zunutze, wie die erfindungsgemäße Tragevorrichtung. Diesbezüglich wird auf die obigen Ausführungen verwiesen und deren Inhalt hier mit einbezogen.The system makes use of the same advantages and preferred embodiments as the carrying device according to the invention. In this regard, reference is made to the above statements and their content is included here.
In einem weiteren Aspekt betrifft die Erfindung ein Verfahren zum Herstellen eines beschichteten Rohrleitungselements, insbesondere eines Rohrleitungselements einer Feuerlöschanlage.In a further aspect, the invention relates to a method for producing a coated pipeline element, in particular a pipeline element of a fire extinguishing system.
Die Erfindung löst die eingangs bezeichnete Aufgabe in Bezug auf das Verfahren durch die Schritte: Bereitstellen eines zu beschichtenden Rohrleitungselements, Auflegen des Rohrleitungselements auf zwei mit einem deckenseitigen Fördermechanismus gekoppelte Tragvorrichtungen, wobei wenigstens eine der Tragvorrichtungen nach einem der oben genannten Ausführungsbeispiele ausgebildet ist, Fördern des Rohrleitungselements mittels des Fördermechanismus zu einer Beschichtungseinrichtung, und Beschichten des Rohrleitungselements in der Beschichtungseinrichtung.The invention solves the problem described at the outset in relation to the method by the steps: providing a pipeline element to be coated, placing the pipeline element on two supporting devices coupled to a ceiling-side conveying mechanism, at least one of the supporting devices being designed according to one of the above-mentioned exemplary embodiments, conveying the Pipe element by means of the conveyor mechanism to a coating device, and coating the pipe element in the coating device.
Auch das Verfahren macht sich die gleichen Vorteile und bevorzugten Ausführungsformen zunutze wie die erfindungsgemäße Tragevorrichtung und es wird erneut auf die obigen Ausführungen verwiesen und deren Inhalt hier mit einbezogen. Ferner wirkt sich bei dem Verfahren vorteilhaft aus, dass das Rohrleitungselement lediglich einmal auf die Tragvorrichtungen aufgelegt werden muss, und sodann während des Beschichtens auf den Tragevorrichtungen verbleiben kann. Der Fördermechanismus mit den Tragevorrichtungen dient somit dem Transport eines Rohrleitungselements zwischen unterschiedlichen Beschichtungsstationen, aber gleichzeitig auch als Aufnahme und Führung für das Rohrleitungselement während der einzelnen Beschichtungsschritte. Zusammengefasst lässt sich somit ein hoch automatisiertes Beschichtungsverfahren für Rohrleitungselemente umsetzen, bei dem Rohrleitungselemente lediglich ein einziges Mal auf eine Tragvorrichtung aufzubringen sind und sodann vollautomatisiert und ohne weitere Positionswechsel beschichtet werden können.The method also makes use of the same advantages and preferred embodiments as the carrying device according to the invention and reference is made again to the above statements and their content is included here. A further advantage of the method is that the pipeline element only has to be placed on the support devices once and can then remain on the support devices during coating. The conveying mechanism with the carrying devices thus serves to transport a pipeline element between different coating stations, but at the same time also serves as a holder and guide for the pipeline element during the individual coating steps. In summary, a highly automated coating process for pipeline elements can be implemented, in which pipeline elements only have to be applied once to a support device and can then be coated fully automatically and without further position changes.
Das Verfahren wird dadurch weitergebildet, dass das Beschichten nach einem Polymerbeschichtungsverfahren erfolgt, wobei das Rohrleitungselement während des Beschichtens auf der Tragvorrichtung verbleibt und das Rohrleitungselement während des Beschichtens vorzugsweise gegenüber einer Horizontalen geneigt wird.The method is further developed in that the coating is carried out using a polymer coating process, wherein the pipe element remains on the support device during the coating and the pipe element is preferably inclined relative to a horizontal during the coating.
Vorzugsweise erfolgt das Beschichten insbesondere mittels chemischer Autodeposition, vorzugsweise mittels Eintauchen des Rohrleitungselements in ein Tauchbad, das ein chemisches Autodepositionsmaterial auf Polymerbasis enthält.The coating is preferably carried out in particular by means of chemical autodeposition, preferably by immersing the pipeline element in an immersion bath which contains a polymer-based chemical autodeposition material.
Das Autodepositionsmaterial enthält vorzugsweise polymere Bestandteile, welche ionisch an der Wand der Rohrleitungselemente gebunden werden, und liegt vorzugsweise als wässrige Emulsion oder Dispersion vor.The autodeposition material preferably contains polymeric components which are ionically bound to the wall of the pipeline elements and is preferably in the form of an aqueous emulsion or dispersion.
Das Autodepositionsmaterial ist in seiner Flüssigphase vorzugsweise sauer, besonders bevorzugt weist es einen pH-Wert in einem Bereich von 1 bis 5 auf, und besonders bevorzugt ein Startermaterial in Form von Metallhalogeniden. Als Metallhalogenide werden für eisenhaltige Metalle insbesondere Eisenhalogenide vorgeschlagen, besonders bevorzugt Eisen(III)fluorid. Als Metallhalogenide werden für zinkhaltige Metalle insbesondere Zinkhalogenide vorgeschlagen.The autodeposition material is preferably acidic in its liquid phase, particularly preferably it has a pH in a range from 1 to 5, and especially preferably a starter material in the form of metal halides. Iron halides in particular are suggested as metal halides for iron-containing metals, particularly preferably iron(III) fluoride. Zinc halides in particular are suggested as metal halides for zinc-containing metals.
Die Metallhalogenide setzen mittels Reaktion an der Oberfläche der Rohrleitungselemente Metallionen, im Falle eines eisenhaltigen Rohrleitungselements also insbesondere Eisenionen, insbesondere Fe2+-Ionen, oder im Falle eines zinkhaltigen Rohrleitungselements insbesondere Zinkionen frei, welche die polymeren Bestandteile im Autodepositionsmaterial destabilisieren, infolgedessen es zu einer Anlagerung an der Metalloberfläche der Rohrleitungselemente kommt.By means of a reaction on the surface of the pipeline elements, the metal halides release metal ions, in the case of an iron-containing pipeline element, in particular iron ions, in particular Fe2+ ions, or in the case of a zinc-containing pipeline element, in particular zinc ions, which destabilize the polymeric components in the autodeposition material, as a result of which an accumulation occurs the metal surface of the pipeline elements.
Das Autodepositionsmaterial weist als polymeren Bestandteil vorzugsweise autodepositionierbare Polymere auf, vorzugsweise ausgewählt aus der Liste bestehend aus:
- i) Epoxiden,
- ii) Acrylaten,
- iii) Styroacrylaten,
- iv) Epoxyacrylaten,
- v) Isocyanaten, insbesondere Urethanen, wie etwa Polyurethanen,
- vi) Polymere mit Vinylgruppe, beispielsweise Polyvinylidenchlorid, oder
- iv) eine Kombination aus zwei oder mehr von i), ii) oder iii), die vorzugsweise miteinander querverbunden sind, weiter vorzugsweise über ein Isocyanat, besonders bevorzugt über ein Urethan.
- i) epoxies,
- ii) acrylates,
- iii) styroacrylates,
- iv) epoxy acrylates,
- v) isocyanates, especially urethanes, such as polyurethanes,
- vi) polymers with vinyl groups, for example polyvinylidene chloride, or
- iv) a combination of two or more of i), ii) or iii), which are preferably cross-linked to one another, more preferably via an isocyanate, particularly preferably via a urethane.
Im erfindungsgemäßen Verfahren wird der Schritt des Eintauchens in einem oder mehreren Tauchgängen solange fortgesetzt wird, bis die an der Innenseite des Rohrleitungselements angebrachte polymerbasierte Schicht eine Dicke in einem Bereich von 7 µm bis 80 µm aufweist, vorzugsweise eine Dicke in einem Bereich von 7 µm bis 30 µm. Die vorgenannten Werte beziehen sich auf die Trockenschichtdicke und insbesondere auf eine Dickenzunahme relativ zum unbeschichteten Zustand.In the method according to the invention, the dipping step is continued in one or more dips until the polymer-based layer attached to the inside of the pipe element has a thickness in a range from 7 μm to 80 μm, preferably a thickness in a range from 7 μm to 30 µm. The aforementioned values relate to the dry layer thickness and in particular to an increase in thickness relative to the uncoated state.
Alternativ oder zusätzlich zu der vorstehend beschriebenen Polymerveredelung umfasst das Beschichten in einer bevorzugten Ausführungsform ein Pulverbeschichtungsverfahren, wobei das Rohrleitungselement während des Beschichtens auf der Tragvorrichtung verbleibt. Sollen sowohl eine Polymerveredlung und eine Pulverbeschichtung vorgenommen werden, wird die Pulverbeschichtung vorzugsweise nach dem Aufbringen der polymerbasierten Schicht durchgeführt, ohne die Rohrleitungselemente zwischenzeitlich von der Tragevorrichtung entnehmen zu müssen. Es ist ferner bevorzugt, dass das Rohrleitungselement nach dem Aufbringen der Oberflächenbeschichtung einer zumindest teilweisen thermischen Nachbehandlung unterzogen wird. Gemäß einer ersten alternativen Ausführungsform ist bevorzugt, dass zur Beschichtung vorhergesehene Pulver vor und/oder während des Beschichtens elektrostatisch aufzuladen. Die Anhaftung des Pulvers an dem zu beschichtenden Werkstück, insbesondere dem Rohrleitungselement, kann auf diese Weise positiv beeinflusst werden, ohne dass etwa Elektroden, und dgl. mehr, an das zu beschichtende Element anzubringen sind.Alternatively or in addition to the polymer finishing described above, the coating in a preferred embodiment comprises a powder coating process, wherein the pipeline element remains on the support device during the coating. Both polymer finishing and powder coating should be used are carried out, the powder coating is preferably carried out after the polymer-based layer has been applied, without having to remove the pipeline elements from the carrying device in the meantime. It is further preferred that the pipeline element is subjected to at least partial thermal aftertreatment after the surface coating has been applied. According to a first alternative embodiment, it is preferred that powders intended for coating be electrostatically charged before and/or during coating. The adhesion of the powder to the workpiece to be coated, in particular the pipeline element, can be positively influenced in this way without electrodes, etc., having to be attached to the element to be coated.
Gemäß einer zweiten bevorzugten Ausführungsform wird das zur Beschichtung vorgesehene Rohrleitungselement vor und/oder während des Beschichtens elektrostatisch aufgeladen. Bei einigen Rohrleitungselement-Werkstoffen hat sich ein solches Vorgehen als vorteilhaft erwiesen, um eine gleichmäßige und hochwertige Beschichtung, insbesondere im Inneren eines Rohrleitungselements, sicherzustellen.According to a second preferred embodiment, the pipeline element intended for coating is electrostatically charged before and/or during coating. For some pipeline element materials, such a procedure has proven to be advantageous in order to ensure a uniform and high-quality coating, especially inside a pipeline element.
In einem weiteren Aspekt, welcher nicht Teil der Erfindung ist, wird ein Rohrleitungselement beschrieben, insbesondere hergestellt in einem Verfahren nach einer der vorstehend beschriebenen bevorzugten Ausführungsformen, mit einem ersten Endbereich und einem gegenüberliegend angeordneten zweiten Endbereich, mit einer Wand mit einer inneren Oberfläche und einer äußeren Oberfläche, einer Oberflächenbeschichtung auf der äußeren Oberfläche. Das Rohrleitungselement weist zwei im Bereich der Enden der Umwandung an der äußeren Oberfläche angeordnete unbeschichtete Abschnitte auf.In a further aspect, which is not part of the invention, a pipeline element is described, in particular produced in a method according to one of the preferred embodiments described above, with a first end region and an oppositely arranged second end region, with a wall with an inner surface and a outer surface, a surface coating on the outer surface. The pipeline element has two uncoated sections arranged in the area of the ends of the wall on the outer surface.
Hierin zeigt sich, dass das Ausführungsbeispiel im Vergleich zu vorbekannten Systemen Rohrleitungselemente liefert, bei denen der Flächenanteil auf lediglich 4 im wesentlichen punktförmige unbeschichtete Stellen reduziert werden konnte. Insbesondere die Innenseite des Rohrleitungselements bleibt von solchen Fehlstellen frei.This shows that, in comparison to previously known systems, the exemplary embodiment provides pipeline elements in which the surface area could be reduced to only 4 essentially punctiform uncoated areas. In particular, the inside of the pipeline element remains free of such defects.
Gemäß einer alternativen Ausführungsform sind vorzugsweise zwei der unbeschichteten Abschnitte entlang eines Umfangs des Rohrleitungselements um einen Winkel von 35° bis 95°, vorzugsweise 60° bis 75°, , weiter vorzugsweise 62° bis 72°, besonders bevorzugt 64° bis 70° zueinander angeordnet. Es hat sich als vorteilhaft herausgestellt, für Rohre vom Typ DN150 und DN200 einen Winkel zwischen 60° und 75° oder einem der engeren Bereich zu verwenden, wobei der Auflagewinkel bei Rohren vom Typ DN150 vorzugsweise größer ist als für Rohre vom Typ DN200. Für große Rohre, etwa vom Typ DN250 oder DN300, hat es sich als vorteilhaft herausgestellt, einen Winkel von 83° und 95° zu verwenden, vorzugsweise von 85° bis 90°.According to an alternative embodiment, two of the uncoated sections are preferably arranged along a circumference of the pipeline element at an angle of 35° to 95°, preferably 60° to 75°, more preferably 62° to 72°, particularly preferably 64° to 70° to one another . It has proven to be advantageous to use an angle between 60° and 75° or one of the narrower ranges for pipes of type DN150 and DN200, with the support angle for pipes of type DN150 being preferably larger than for pipes of type DN200. For large pipes, such as type DN250 or DN300, it has been found advantageous to use an angle of 83° and 95°, preferably 85° to 90°.
Gemäß einer weiteren alternativen Ausführungsform, welche insbesondere für Rohre vom Typ DN100 oder DN125 vorgesehen ist, sind vorzugsweise zwei der unbeschichteten Abschnitte entlang des Umfangs des Rohrleitungselements um einen Winkel von 45° bis 55°, besonders bevorzugt um einen Winkel von 48° bis 52°, beabstandet zueinander angeordnet.According to a further alternative embodiment, which is intended in particular for pipes of type DN100 or DN125, two of the uncoated sections are preferably along the circumference of the pipeline element at an angle of 45° to 55°, particularly preferably at an angle of 48° to 52° , arranged spaced apart from each other.
Weiterhin ist bevorzugt, dass eine Oberflächenbeschichtung auf der inneren Oberfläche angeordnet ist.Furthermore, it is preferred that a surface coating is arranged on the inner surface.
Gemäß einer weiteren bevorzugten Ausführungsform ist die Oberflächenbeschichtung auf der inneren und äußeren Oberfläche als Polymerbeschichtung ausgebildet.According to a further preferred embodiment, the surface coating is designed as a polymer coating on the inner and outer surfaces.
Ferner ist bevorzugt, dass die Oberflächenbeschichtung auf der äußeren Oberfläche zusätzlich zu der polymerbasierten Schicht eine Pulverbeschichtung aufweist oder als Pulverbeschichtung ausgebildet ist.Furthermore, it is preferred that the surface coating on the outer surface has a powder coating in addition to the polymer-based layer or is designed as a powder coating.
In einer weiteren bevorzugten Ausführungsform ist das Rohrleitungselement aus einem zur chemischen Autodeposition geeigneten Metall, insbesondere einem eisenhaltigen und/oder zinkhaltigen Metall ausgebildet, und die polymerbasierte Schicht enthält einen metallischen Bestandteil, vorzugsweise in Form von Metallionen, bei einem eisenhaltigen Metall also besonders bevorzugt in Form von Eisenionen und bei einem zinkhaltigen Metall in Form von Zinkionen.In a further preferred embodiment, the pipeline element is made of a metal suitable for chemical autodeposition, in particular an iron-containing and/or zinc-containing metal, and the polymer-based layer contains a metallic component, preferably in the form of metal ions, in the case of an iron-containing metal, particularly preferably in the form of iron ions and in the case of a metal containing zinc in the form of zinc ions.
Weiter vorzugsweise weist die polymerbasierte Schicht polymere Bestandteile auf, vorzugsweise aus der Liste ausgewählt bestehend aus:
- i) Epoxiden,
- ii) Acrylaten,
- iii) Styroacrylaten,
- iv) Epoxyacrylaten,
- v) Isocyanaten, insbesondere Urethanen, wie etwa Polyurethanen,
- vi) Polymere mit Vinylgruppe, beispielsweise Polyvinylidenchlorid, oder
- iv) eine Kombination aus zwei oder mehr von i), ii) oder iii), die vorzugsweise miteinander querverbunden sind, weiter vorzugsweise über ein Isocyanat, besonders bevorzugt über ein Urethan.
- i) epoxies,
- ii) acrylates,
- iii) styroacrylates,
- iv) epoxy acrylates,
- v) isocyanates, especially urethanes, such as polyurethanes,
- vi) polymers with vinyl groups, for example polyvinylidene chloride, or
- iv) a combination of two or more of i), ii) or iii), which are preferably cross-linked to one another, more preferably via an isocyanate, particularly preferably via a urethane.
In einer weiteren bevorzugten Ausgestaltung weist die polymerbasierte Schicht eine Dicke in einem Bereich von 7 µm bis 80 µm auf, vorzugsweise eine Dicke in einem Bereich von 7 µm bis 30 µm. Die vorgenannten Werte beziehen sich auf die Trockenschichtdicke und insbesondere auf einen Rohrdickenzuwachs relativ zum unbeschichteten Zustand.In a further preferred embodiment, the polymer-based layer has a thickness in a range from 7 μm to 80 μm, preferably a thickness in a range from 7 μm to 30 μm. The aforementioned values relate to the dry layer thickness and in particular to an increase in pipe thickness relative to the uncoated state.
Weiterhin ist bevorzugt, dass Rohrleitungselement einen Nenndurchmesser in einem Bereich von DN15 bis DN300 aufweist, vorzugsweise DN 32 bis DN 80. Alternativ liegen die Nennweitenbereiche im Zoll-System von ½" (NPS) bis 12" (NPS), besonders bevorzugt in einem Bereich von 1 ¼" (NPS) bis 3" (NPS).Furthermore, it is preferred that the pipeline element has a nominal diameter in a range from DN15 to DN300, preferably
Vorzugsweise weist der das Rohrleitungselement eine Längsachse und eine Rohrlänge in Richtung der Längsachse in einem Bereich von 1 m oder mehr auf, weiter vorzugsweise in einem Bereich von 3 m oder mehr, besonders bevorzugt in einem Bereich von 5 m oder mehr.The pipeline element preferably has a longitudinal axis and a pipe length in the direction of the longitudinal axis in a range of 1 m or more, more preferably in a range of 3 m or more, particularly preferably in a range of 5 m or more.
Die Erfindung wird nachfolgend unter Bezugnahme auf die beigefügten Figuren und unter Bezugnahme auf bevorzugte Ausführungsbeispiele näher beschrieben.The invention is described in more detail below with reference to the attached figures and with reference to preferred exemplary embodiments.
Hierbei zeigen:
- Fig. 1
- einen Ausschnitt eines ersten Ausführungsbeispiels einer erfindungsgemäßen Tragevorrichtung in einer Seitenansicht;
- Fig. 2
- das Ausführungsbeispiel der erfindungsgemäßen Tragevorrichtung gemäß
Fig. 1 in einer Seitenansicht; - Fig. 3
- ein zweites alternatives Ausführungsbeispiel einer erfindungsgemäßen Tragevorrichtung in einer Seitenansicht;
- Fig. 4
- ein drittes alternatives Ausführungsbeispiel einer erfindungsgemäßen Tragevorrichtung in einer Seitenansicht;
- Fig. 5
- ein viertes alternatives Ausführungsbeispiel einer erfindungsgemäßen Tragevorrichtung in einer Seitenansicht;
- Fig. 6
bis 8 - erfindungsgemäße Haltespitzen in Seitenansichten; und
- Fig. 9
- ein mittels einer Tragevorrichtung gemäß den
Figuren 1 hergestelltes Rohrleitungselement.bis 8
- Fig. 1
- a detail of a first exemplary embodiment of a carrying device according to the invention in a side view;
- Fig. 2
- the embodiment of the carrying device according to the invention
Fig. 1 in a side view; - Fig. 3
- a second alternative embodiment of a carrying device according to the invention in a side view;
- Fig. 4
- a third alternative embodiment of a carrying device according to the invention in a side view;
- Fig. 5
- a fourth alternative embodiment of a carrying device according to the invention in a side view;
- Fig. 6 to 8
- Holding tips according to the invention in side views; and
- Fig. 9
- one by means of a carrying device according to
Figures 1 to 8 manufactured pipeline element.
An dem Ausleger 8 angeordnet ist eine Aufnahme 10 zur Aufnahme eines Rohrleitungselementes 4. Die Aufnahme 10 weist zwei Stützfüße 12, 12' auf, die einander zugewandt ausgerichtet sind. Der Neigungswinkel, mit dem die Stützfüße 12, 12' einander zugewandt sind, ist mit β bezeichnet. Die Stützfüße 12, 12' treten mit Wandabschnitten 14, 14' des Rohrleitungselements 4 in Kontakt. Diese Wandabschnitte des Rohrleitungselements 14, 14' befinden sich an der Außenseite des Rohrleitungselements 4. Die Stützfüße 12, 12' sind zweiteilig ausgebildet. Zunächst ist ein Grundabschnitt der Stützfüße 24, 24' unmittelbar angrenzend an den Ausleger 8 angeordnet. Der Grundabschnitt der Stützfüße 24, 24' ist in Richtung seines Endes als Steckerabschnitt 26, 26' ausgebildet.Arranged on the
Auf den Steckerabschnitt 26, 26' kann eine Haltespitze 16, 16' aufgebracht werden. Die Haltespitze 16, 16' weist ihrerseits eine Stumpfseite 18, 18' sowie eine Spitzenseite 20, 20' auf. In der Stumpfseite 18, 18' ist eine Kupplungsausnehmung 22, 22' ausgebildet, die mit dem Steckerabschnitt 26, 26' des Grundabschnittes der Stützfüße 24, 24' korrespondiert. Auf diese Weise ist die Haltespitze 16, 16' austauschbar an dem Grundabschnitt der Stützfüße 24, 24' angeordnet.A holding
Zur Ermöglichung einer weitestgehend ungestörten Umströmung des Rohrleitungselementes 4 bei einem Beschichtungsprozess ist der dem Rohrelement 4 zugewandte Abschnitt der Haltespitze 16, 16' mittels der Höhe h von der Oberseite der Ausleger 8 beabstandet.To enable a largely undisturbed flow around the
In
An dem Grundkörper 6 ist ferner ein Kopplungsabschnitt 28 ausgebildet. Dieser Kopplungsabschnitt 28 dient der Kopplung der Tragevorrichtung 2 mit einer Fördereinrichtung, insbesondere mit einem deckenseitigen Fördermechanismus.A
Ein alternatives Ausführungsbeispiel einer Tragevorrichtung 102 ist in der
Ein weiteres alternatives Ausführungsbeispiel einer Tragevorrichtung 202 ist in
Ein weiteres alternatives Ausführungsbeispiel einer Tragevorrichtung 302 ist schließlich noch in
In den
Ein alternatives Ausführungsbeispiel einer Haltespitze 116, 116' ist in
Ein weiteres alternatives Ausführungsbeispiel einer Haltespitze 216, 216' weist zunächst erneut eine Stumpfseite 218 mit einer darin ausgebildeten Kupplungsausnehmung 222 auf. Die Spitzenseite 220 ist in
- 22
- TragevorrichtungCarrying device
- 44
- RohrleitungselementPiping element
- 66
- GrundkörperBasic body
- 88th
- Auslegerboom
- 1010
- AufnahmeRecording
- 12, 12'12, 12'
- StützfüßeSupport feet
- 14, 14'14, 14'
- Wandabschnitte des RohrleitungselementsWall sections of the pipeline element
- 16, 16'16, 16'
- Haltespitzeholding tip
- 18, 18'18, 18'
- Stumpfseitestump side
- 20, 20'20, 20'
- SpitzenseiteLace page
- 22, 22'22, 22'
- KupplungsausnehmungCoupling recess
- 24, 24'24, 24'
- Grundabschnitt der StützfüßeBasic section of the support feet
- 26, 26'26, 26'
- SteckerabschnittConnector section
- 2828
- KoppelungsabschnittCoupling section
- 3030
- KontaktflächeContact surface
- 3232
- Erster EndbereichFirst end area
- 3434
- Zweiter EndbereichSecond end area
- 36, 36', 36", 36‴36, 36', 36", 36‴
- unbeschichtete Abschnitteuncoated sections
- 38, 38'38, 38'
- PolymerbeschichtungPolymer coating
- 4040
- PulverbeschichtungPowder coating
- ββ
- Winkel zwischen Haltespitzen-LängsachsenAngle between holding tip longitudinal axes
- hH
- Höhe zwischen Ende der Stützfüße und AuslegeroberseiteHeight between end of support feet and top of boom
- d1, d2d1, d2
- AuslegerabstandBoom distance
- 102102
- TragevorrichtungCarrying device
- 106106
- GrundkörperBasic body
- 108108
- Auslegerboom
- 116, 116'116, 116'
- Haltespitzeholding tip
- 118118
- Stumpfseitestump side
- 120120
- SpitzenseiteLace page
- 122122
- KupplungsausnehmungCoupling recess
- 124, 124'124, 124'
- Grundabschnitt der StützfüßeBasic section of the support feet
- 128128
- KoppelungsabschnittCoupling section
- 130130
- Kegelspitzecone tip
- 202202
- TragevorrichtungCarrying device
- 206206
- GrundkörperBasic body
- 208208
- Auslegerboom
- 212, 212'212, 212'
- StützfüßeSupport feet
- 216, 216'216, 216'
- Haltespitzeholding tip
- 218218
- Stumpfseitestump side
- 220220
- SpitzenseiteLace page
- 222222
- KupplungsausnehmungCoupling recess
- 228228
- KoppelungsabschnittCoupling section
- 230230
- KontaktflächeContact surface
- 232232
- VerstrebungBracing
- 302302
- TragevorrichtungCarrying device
- 306306
- GrundkörperBasic body
- 308308
- Auslegerboom
- 324, 324'324, 324'
- Grundabschnitt der StützfüßeBasic section of the support feet
- 328328
- KoppelungsabschnittCoupling section
Claims (13)
- Carrying device (2) for receiving pipeline elements (4) in a surface coating installation, having:- a main body (6),- an attachment section (28) which is formed on the main body (6) and which serves for the attachment of the carrying device (2) to a ceiling-mounted conveying mechanism, and- multiple cantilevers (8) extending laterally from the main body (6),characterized in that, on each cantilever (8), there is arranged a receptacle (10) with support feet (12, 12') arranged in pairwise fashion and spaced apart from one another, wherein the support feet (12, 12') are configured to come into contact with in each case one outer wall section of a pipeline element (14) in order to hold the pipeline element (4) between the support feet (12, 12').
- Carrying device (2) according to Claim 1,characterized in that the support feet (12, 12') arranged in pairwise fashion are oriented so as to face toward one another at an angle of 35° to 95°; and/orcharacterized in that the support feet (12, 12') arranged in pairwise fashion have, at their end averted from the cantilever (8), a height of 30 mm to 80 mm, in particular 47 mm to 77 mm, in relation to a top side of the cantilevers (8).
- Carrying device (2) according to one of the preceding claims,
characterized in that the support feet (12, 12') have in each case one holding tip (16, 16') with a stump side (18, 18') and a tip side (20, 20'), wherein the holding tip has a greater diameter at the stump side (18, 18') than at the tip side (20, 20'). - Carrying device (2) according to Claim 3,characterized in that the holding tip (16, 16') has a coupling recess (22, 22') at the stump side (18, 18'), and a plug-in portion (26, 26') which corresponds to the coupling recess is formed on a base section (24, 24') of the support feet (12, 12'); and/orcharacterized in that the holding tip (216) has a cylindrical section and has a conical section adjoining the cylindrical section, wherein the conical section, in particular the cone tip thereof, is configured to come into contact with a pipeline element (4); and/orcharacterized in that the holding tip (16, 16') is formed as a separate, exchangeable component; and/or characterized in that the holding tip (16, 16') is formed from one of the following materials:- machining steel, in particular 9SMn28K,- nonferrous metal.
- Carrying device (2) according to one of the preceding claims,
characterized in that the main body (6) and/or the cantilever (8) are formed from one of the following:- sheet metal, in particular one-piece sheet metal,- nonferrous metal. - Carrying device (2) according to one of the preceding claims,characterized in that, on the main body (6), at least two cantilevers (8) are arranged spaced apart from one another along a longitudinal axis of the main body (6), wherein preferablythe cantilevers (8) have a substantially horizontal orientation during operation; and/orthe cantilever (308) has a first side and a second side, wherein the cantilevers (308) on the first side are arranged in alignment with or so as to be offset with respect to the cantilevers on the second side.
- System for transporting at least one pipeline element (4) within a surface coating installation, having:- a ceiling-mounted conveying mechanism, and- at least two carrying devices (2), which are attachable to the conveying mechanism, for receiving pipeline elements (4),characterized in that the carrying devices engage, spaced apart from one another, on the same pipeline element (4) in each case, and are designed according to one of Claims 1 to 6.
- Method for producing a coated pipeline element (4), in particular a pipeline element (4) of a fire extinguishing installation, wherein the method comprises the steps:- providing a pipeline element (4) for coating,- placing the pipeline element (4) onto two carrying devices (2) which are coupled to a ceiling-mounted conveying mechanism, wherein at least one of the carrying devices (2) is designed according to one of Claims 1 to 6,- conveying the pipeline element (4) by means of the conveying mechanism to a coating facility, and- coating the pipeline element (4) in the coating facility.
- Method according to Claim 8,
characterized in that the coating is performed in a polymer coating process, wherein the pipeline element (4) remains on the carrying devices (2) during the coating process and, preferably, the pipeline element (4) is inclined relative to a horizontal during the coating process. - Method according to Claim 9,wherein the coating is performed in particular by means of chemical autodeposition, preferably by dipping of the pipeline element (4) into a dip bath which contains a polymer-based chemical autodeposition material; and/orthe autodeposition material comprises polymer constituents which are ionically bonded to the wall of the pipeline elements (4), and is preferably present as an aqueous emulsion or dispersion; and/or the autodeposition material is acidic, preferably has a pH value in a range from 1 to 5, and preferably comprises a starter material in the form of metal halides; and/orthe autodeposition material has, as polymer constituent, one or more autodepositionable polymers preferably selected from the list comprising:i) epoxides,ii) acrylates,iii) styrene acrylates,iv) epoxy acrylates,v) isocyanates, especially urethanes, such as polyurethanes,vi) polymers with a vinyl group, for example polyvinylidene chloride, orvii) a combination of two or more of i), ii) or iii), which are preferably crosslinked to one another, more preferably via an isocyanate, particularly preferred via a urethane.
- Method according to Claim 10,
wherein the dipping step is continued in one or more dipping steps until such time as the polymer-based layer applied to the inside of the pipeline element has a thickness in a range from 7 um to 80 um, preferably a thickness in a range from 7 um to 30 µm. - Method according to one of Claims 8 to 11,
characterized in that the coating comprises a powder coating method, wherein the pipeline element (4) remains on the carrying device (2) during the coating process. - Method according to Claim 12,characterized in that the pipeline element (4) is subjected to an at least partial thermal aftertreatment before the powder coating process and/or after the powder coating process, wherein, preferably, powder provided for the coating process is electrostatically charged before and/or during the coating process; ora pipeline element (4) provided for the coating process is electrostatically charged before and/or during the coating process.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018115537.9A DE102018115537A1 (en) | 2018-06-27 | 2018-06-27 | Carrying device for receiving a pipeline element, relevant transport system and manufacturing process |
PCT/EP2019/067235 WO2020002542A2 (en) | 2018-06-27 | 2019-06-27 | Carrying device for receiving a pipeline element, associated transport system, and production method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3814020A2 EP3814020A2 (en) | 2021-05-05 |
EP3814020B1 true EP3814020B1 (en) | 2024-01-10 |
Family
ID=67107459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19734391.6A Active EP3814020B1 (en) | 2018-06-27 | 2019-06-27 | Carrying device for receiving a pipeline element, associated transport system, and production method |
Country Status (5)
Country | Link |
---|---|
US (1) | US11400476B2 (en) |
EP (1) | EP3814020B1 (en) |
CN (1) | CN216368522U (en) |
DE (1) | DE102018115537A1 (en) |
WO (1) | WO2020002542A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018115537A1 (en) | 2018-06-27 | 2020-01-02 | Minimax Viking Research & Development Gmbh | Carrying device for receiving a pipeline element, relevant transport system and manufacturing process |
DE102018115506A1 (en) | 2018-06-27 | 2020-01-02 | Minimax Viking Research & Development Gmbh | Method for producing a pipe element, in particular a pipe element of a fire extinguishing system, pipe element and pipe system in the same |
DE102018115533A1 (en) | 2018-06-27 | 2020-01-02 | Minimax Viking Research & Development Gmbh | Method for producing a number of pipes with a predetermined pipe diameter, pipe, and pipe system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0730501A1 (en) * | 1993-10-26 | 1996-09-11 | Balmoral Group LIMITED | Method of coating pipes |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1097273A (en) * | 1913-11-25 | 1914-05-19 | Edward B Tyler | Pipe-support. |
IT953586B (en) * | 1972-03-31 | 1973-08-10 | Monter Spa | PROCEDURE AND RELATED EQUIPMENT FOR THE PROTECTIVE COATING WITH RESIN POWDER PAINTS AND THOUSANDS OF RING CAVITY IN PARTICULAR OF THE CAVITY EXISTING BETWEEN THE RIM AND DISC OF A WHEEL FOR MOTOR VEHICLES |
US4331230A (en) * | 1979-06-25 | 1982-05-25 | Hooker Chemicals & Plastics Corp. | Work rack for conveying apparatus |
FR2683746B1 (en) * | 1991-11-19 | 1995-01-27 | Application Peintures Ste Indle | METHOD AND INSTALLATION FOR PERFORMING A SURFACE COATING ON ARTICLES BASED ON SYNTHETIC RESINS OR THE LIKE. |
US6276400B1 (en) * | 1999-06-08 | 2001-08-21 | Itt Manufacturing Enterprises, Inc. | Corrosion resistant powder coated metal tube and process for making the same |
GB0016960D0 (en) * | 2000-07-12 | 2000-08-30 | Bae Systems Plc | A jig and a method and appratus of applying a surface treatment to a member on the jig |
KR200358477Y1 (en) * | 2004-05-19 | 2004-08-07 | 지 테크 주식회사 | Supporter for Hot-dip Galvanization Coating |
US8298384B2 (en) * | 2008-01-31 | 2012-10-30 | Century Plating Co. | Method and apparatus for plating metal parts |
DE202010015665U1 (en) * | 2010-11-19 | 2011-11-18 | Gwk Klebetechnik Gmbh | Coating protection in front of pipe ends |
DK2623163T3 (en) | 2012-02-05 | 2016-09-19 | Minimax Gmbh & Co Kg | Extinguishing System |
US9752232B2 (en) * | 2015-05-13 | 2017-09-05 | Dan Porodo | Method of electrolessly plating nickel on tubulars |
DE102018115537A1 (en) | 2018-06-27 | 2020-01-02 | Minimax Viking Research & Development Gmbh | Carrying device for receiving a pipeline element, relevant transport system and manufacturing process |
DE102018115506A1 (en) | 2018-06-27 | 2020-01-02 | Minimax Viking Research & Development Gmbh | Method for producing a pipe element, in particular a pipe element of a fire extinguishing system, pipe element and pipe system in the same |
DE102018115533A1 (en) | 2018-06-27 | 2020-01-02 | Minimax Viking Research & Development Gmbh | Method for producing a number of pipes with a predetermined pipe diameter, pipe, and pipe system |
-
2018
- 2018-06-27 DE DE102018115537.9A patent/DE102018115537A1/en active Pending
-
2019
- 2019-06-27 EP EP19734391.6A patent/EP3814020B1/en active Active
- 2019-06-27 US US17/252,726 patent/US11400476B2/en active Active
- 2019-06-27 CN CN201990000818.XU patent/CN216368522U/en active Active
- 2019-06-27 WO PCT/EP2019/067235 patent/WO2020002542A2/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0730501A1 (en) * | 1993-10-26 | 1996-09-11 | Balmoral Group LIMITED | Method of coating pipes |
Also Published As
Publication number | Publication date |
---|---|
WO2020002542A3 (en) | 2020-02-27 |
US11400476B2 (en) | 2022-08-02 |
US20210213477A1 (en) | 2021-07-15 |
EP3814020A2 (en) | 2021-05-05 |
WO2020002542A2 (en) | 2020-01-02 |
CN216368522U (en) | 2022-04-26 |
DE102018115537A1 (en) | 2020-01-02 |
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