WO2007065407A2 - Connecting assembly for joining a fiber-reinforced plastic tube to a further part - Google Patents
Connecting assembly for joining a fiber-reinforced plastic tube to a further part Download PDFInfo
- Publication number
- WO2007065407A2 WO2007065407A2 PCT/DE2006/002136 DE2006002136W WO2007065407A2 WO 2007065407 A2 WO2007065407 A2 WO 2007065407A2 DE 2006002136 W DE2006002136 W DE 2006002136W WO 2007065407 A2 WO2007065407 A2 WO 2007065407A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connection arrangement
- transition piece
- inner tube
- arrangement according
- tube
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
- F16L47/24—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to one of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52295—Joining tubular articles involving the use of a socket said socket comprising reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52296—Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
- B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
- B29C66/72141—Fibres of continuous length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Definitions
- the invention relates to a connection arrangement for connecting a fiber composite plastic tube or a reinforced plastic tube to a further component, with an inner tube made of thermoplastic, which is provided on its surface facing the tube axis with a Porteranordnimg for electric welding.
- RTP pipes Reinforced.Thermoplastic Pipe
- RTP Reinforced.Thermoplastic Pipe
- These pipes can be used for a pressure and temperature range of up to 80 bar and 60 ° C.
- Cross-linked polyethylene pipes can also be used, as can polyamide pipes.
- reinforced plastic pipes are to be addressed here, the inner layer and / or outer layer of which can be connected to other components by means of electric welding. More generally, plastic pipes without fiber reinforcement or plastic-metal composite pipes can also be considered for the present invention.
- connection of multilayer pipes is, for example, the subject of GB 2 314 597.
- a connection arrangement is described in which the pipe is inserted into a ring sleeve and its exposed plastic surfaces are connected by means of electric welding to the ring sleeve having a heating coil.
- the disadvantage here is that only plastic pipes or plastic components can be connected to each other.
- Components made of other materials for example made of metal or plastics, which cannot be processed thermoplastically, the procedure described there cannot be used.
- PCT / DE2005 / 001007 which has not been previously published, deals with the transitions between multilayer pipes and components made of other materials, but leaves open how exactly the axial securing of the transition is designed, in particular in the area between the inner pipe and the fiber layer above it.
- a transition piece is provided that is inserted into the inner tube along a coupling area, and a reinforcing layer which at least partially surrounds the inner tube and the transition piece; wherein the reinforcement layer is integrally connected to the inner tube and positively to the transition piece.
- connection means a connection in which the connection partners are held together by atomic or molecular forces.
- Form-fit means a connection that is formed by intermeshing or intermeshing of connection partners, which does not come off even without or with interrupted power transmission.
- the combination of the two types of connection ensures that the inner tube can practically only detach from the reinforcement layer by destroying the complete connection arrangement, while the positive connection on the transition piece means that almost any materials can be used for the transition piece without the connection arrangement as a whole the axial locking is lost even under heavy loads.
- the reinforcing layer advantageously engages behind a shoulder of the transition piece, which extends essentially perpendicular to the outer surface of the pipe piece. A load on train can therefore not separate the transition piece from the inner tube.
- the transition piece preferably has a polygonal cross section over at least part of its length, which is surrounded by the reinforcement layer. This ensures that the transition piece does not twist with respect to the reinforcement layer.
- At least one sealing element can be provided in the coupling area of the inner tube and transition piece, the at least one sealing element advantageously also being an O-ring which is accommodated in a groove provided in the inner tube and / or in the transition piece.
- Elastomer elements or the like can also be used as sealing elements.
- Two sealing elements are preferably provided, which are axially spaced apart.
- a sleeve can be attached over the inner tube in the coupling area, which uniformly pre-compresses the sealing elements.
- the sleeve can also be used in connection with only one sealing element.
- the outside of the sleeve is provided with a surface structure, for example a corrugation or knurl, in order to improve the positive connection of the reinforcement layer.
- At least one of the edge areas of the sleeve should have a bevel, specifically that edge area which faces the inner tube. This ensures a smooth transition of the reinforcement layer from the inner tube to the sleeve.
- the transition piece can further advantageously have an annular flange on its outside, which secures the reinforcement layer even more axially.
- the exposed end of the transition piece has a connection thread and one or more sealing elements for the connection to further material.
- the reinforcement layer preferably consists of fiber material embedded in thermoplastic. Then the cohesive connection to the inner tube can take place in that the fibers present as continuous material are permanently connected to the inner tube made of thermoplastic material, for example by gluing or welding, while they are wound in one or more layers around the inner tube and around the transition piece.
- the connection arrangement consists of a cylindrical inner tube 10 made of thermoplastic material, for example polyethylene, polypropylene, polyamide or the like.
- the inner tube 10 ends on one side in a reinforced ring 12.
- the outer diameter of the inner tube 10 remains substantially constant over its length, while the inner diameter in the region of the reinforced ring 12 is reduced, so that a contact edge for a to be inserted into the inner tube 10 Pipe, for example RTP pipe, is formed.
- a heating coil 14 is attached, which can be connected to an energy source via electrical contacts, only one of which 16 is shown, so that the inserted tube is welded to the connection arrangement by means of heating coil welding technology can.
- a transition piece 20 is inserted into the inner tube 10 such that an annular flange 22 comes to rest against the second contact surface of the reinforced ring 12 of the inner tube 10.
- the sealing elements 26, 26 ' ensure the tight connection between the tube 10 and the transition piece 20.
- the area of the connection arrangement surrounding the reinforced ring 12 of the inner tube 10 is also referred to below as the “coupling area A”.
- the coupling area A there is a sleeve 30, for example made of steel, above the reinforced ring 12, which ensures that the sealing elements 26, 26 'are pre-compressed.
- the sleeve 30 has a chamfer 32 which is directed towards the inner tube 10. This chamfer 32 ensures a smooth transition of the reinforcement layer 40 from the inner tube 10 to the coupling area A.
- the reinforcement layer 40 covers this Inner tube 10 completely and the transition piece 20 partially. It can also be considered that the reinforcement layer also only partially covers the inner tube 10 and ends, for example, before the electrical contact 16.
- the reinforcement layer 40 is formed by winding continuous fiber material in the desired thickness around the inner tube 10, the contact area A and a section B of the transition piece 20, which is delimited by a flange 28.
- the cohesive connection of the reinforcement layer 20 to the inner tube 10 is effected by any known measure, such as gluing, welding or the like.
- the thickness of the reinforcement layer 40 is determined from the pressure load to be expected of the connection arrangement. While the thickness of the reinforcement layer 40 is essentially constant in the area of the inner tube 10 and in the coupling area A, it is significantly greater in section B of the transition piece 20, that is to say starting with the rear surface of the ring flange 22. Under this reinforced section 42 of the reinforcement layer 40, the transition piece 20 has a polygonal cross section, so that, for example, a hexagonal profile is formed, which ensures that the transition piece 20 is secured against rotation with respect to the inner tube 10.
- the reinforced section 42 ends at the limiting flange 28, so that in addition to the positive connection, formed by the undercut of the ring flange 22, the reinforced section 42 of the reinforcement layer 40 ensures that axial securing is ensured.
- the exposed end of the transition piece 20 is finally provided with a connecting thread 50 with a sealing O-ring or similar sealing element 52 in order to be able to connect to further components.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Disclosed is a connecting assembly for joining a fiber-reinforced plastic tube or an armored plastic tube to a further part. Said connecting assembly comprises an inner tube (10) that is made of a thermoplastic material and is provided with a conductor arrangement (14) for electric welding on the surface facing the tube axis. The inventive connecting assembly is characterized by a transition piece (20) that is inserted into the inner tube along a coupling area (A) as well as an armoring layer which surrounds the inner tube and the transition piece at least in part. The armoring layer forms a material bond with the inner tube while being non-positively connected to the transition piece.
Description
Verbindungsanordnung zum Anbinden eines Faserverbmid-Kunststoffrohres Connection arrangement for connecting a fiber composite plastic tube
an ein weiterführendes Bauteil to a further component
Die Erfindung betrifft eine Verbindungsanordnung zum Anbinden eines Faserverbund- Kunststoffrohres oder eines armierten Kunststoffrohres an ein weiterführendes Bauteil, mit einem Innenrohr aus thermoplastischem Kunststoff, welches auf seiner der Rohrachse zugewandten Fläche mit einer Leiteranordnimg für das Elektroschweißen versehen ist. The invention relates to a connection arrangement for connecting a fiber composite plastic tube or a reinforced plastic tube to a further component, with an inner tube made of thermoplastic, which is provided on its surface facing the tube axis with a Leiteranordnimg for electric welding.
Seit einigen Jahren werden faserverstärkte Kunststoffrohre, sogenannte RTP-Rohre (RTP = Reinforced.Thermoplastic Pipe), primär im Offshore-Bereich für den Medientransport von Rohöl und Gas eingesetzt. Hierbei handelt es sich um Mehrschichtrohre mit einer Innenlage aus Polyethylen und einer mittig aufgebrachten Faserschicht, beispielsweise unter Verwendung einer Aramidfaser, und einem äußeren Mantel, der ebenfalls wieder aus Polyethylen besteht. Diese Rohre sind für einen Druck- und Temperaturbereich von bis zu 80 bar und 600C verwendbar. Es können auch Rohre aus vernetztem Polyethylen eingesetzt werden, ebenso solche aus Polyamid. Hier sollen ganz allgemein verstärkte Kunststoffrohre angesprochen sein, deren Innenlage und/oder Außenlage mittels Elektroschweißen an andere Komponenten angebunden werden kann. Noch allgemeiner können auch Kunststoffrohre ohne Faserverstärkung oder Kunststoff-Metall-Verbundrohre für die vorliegende Erfindung in Betracht gezogen werden. For several years now, fiber-reinforced plastic pipes, so-called RTP pipes (RTP = Reinforced.Thermoplastic Pipe), have been used primarily in the offshore sector for the media transport of crude oil and gas. These are multilayer pipes with an inner layer made of polyethylene and a fiber layer applied in the middle, for example using an aramid fiber, and an outer jacket, which again consists of polyethylene. These pipes can be used for a pressure and temperature range of up to 80 bar and 60 ° C. Cross-linked polyethylene pipes can also be used, as can polyamide pipes. In general, reinforced plastic pipes are to be addressed here, the inner layer and / or outer layer of which can be connected to other components by means of electric welding. More generally, plastic pipes without fiber reinforcement or plastic-metal composite pipes can also be considered for the present invention.
Das Problem bei solchen Rohren ist nämlich der Übergang zu Rohren beispielsweise aus metallischen Werkstoffen oder zu weiterführenden Bauteilen, beispielsweise Fittings, Abzweigungen, T-Stücke und dergleichen. The problem with such pipes is namely the transition to pipes made, for example, of metallic materials or to further components, such as fittings, branches, T-pieces and the like.
Die Verbindung von Mehrschichtrohren ist beispielsweise Gegenstand der GB 2 314 597. Dort ist eine Verbindungsanordnung beschrieben, bei der das Rohr in eine Ringhülse eingeschoben wird und seine freiliegenden Kunststoffflächen mittels Elektroschweißen mit der einer Heizwendel aufweisenden Ringhülse verbunden werden. Nachteilig ist hier, daß lediglich Kunststoffrohre bzw. Kunststoffbauteile miteinander verbunden werden können. Für
Bauteile aus anderen Materialien, beispielsweise aus Metall oder Kunststoffen, die nicht thermoplastisch bearbeitbar sind, kann die dort beschriebene Vorgehensweise nicht verwendet werden. The connection of multilayer pipes is, for example, the subject of GB 2 314 597. There, a connection arrangement is described in which the pipe is inserted into a ring sleeve and its exposed plastic surfaces are connected by means of electric welding to the ring sleeve having a heating coil. The disadvantage here is that only plastic pipes or plastic components can be connected to each other. For Components made of other materials, for example made of metal or plastics, which cannot be processed thermoplastically, the procedure described there cannot be used.
Die nicht vorveröffentlichte PCT/DE2005/001007 befaßt sich mit den Übergängen zwischen Mehrschichtrohren und Bauteilen aus anderen Materialien, läßt aber offen, wie genau die axiale Sicherung des Überganges insbesondere im Bereich zwischen rnliner (Innenrohr) und darüberliegender Faserschicht ausgestaltet ist. PCT / DE2005 / 001007, which has not been previously published, deals with the transitions between multilayer pipes and components made of other materials, but leaves open how exactly the axial securing of the transition is designed, in particular in the area between the inner pipe and the fiber layer above it.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Verbindungsanordnung zum Anbinden beispielsweise eines Faserverbund-Kunststoffrohres oder eines armierten Kunststoffrohres ein weiterführendes Bauteil anzugeben, die universell einsetzbar ist, weitgehend vorgefertigt werden kann und sich durch hohe axiale Festigkeit des Übergangs zu den weiterführenden Bauteilen auszeichnet. It is therefore the object of the present invention to provide a connecting arrangement for connecting, for example, a fiber composite plastic tube or a reinforced plastic tube to a further component, which can be used universally, can be largely prefabricated and is characterized by a high axial strength of the transition to the further components.
Diese Aufgabe wird durch eine Verbindungsanordnung nach Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche. This object is achieved by a connection arrangement according to claim 1. Advantageous refinements are the subject of the dependent claims.
Erfmdungsgemäß ist ein Übergangsstück vorgesehen, daß entlang einem Kopplungsbereich in das Innenrohr eingeschoben ist, weiterhin eine Armierungsschicht, welche das Innenrohr und das Übergangsstück zumindest teilweise umgibt; wobei die Armierungsschicht stoffschlüssig mit dem rnnenrohr und formschlüssig mit dem Übergangsstück verbunden ist. According to the invention, a transition piece is provided that is inserted into the inner tube along a coupling area, and a reinforcing layer which at least partially surrounds the inner tube and the transition piece; wherein the reinforcement layer is integrally connected to the inner tube and positively to the transition piece.
„Stoffschlüssig" meint dabei eine Verbindung, bei der die Verbindungspartner durch atomare oder molekulare Kräfte zusammengehalten werden.„Formschlüssig" meint eine Verbindung, die durch meinander- oder Aneinandergreifen von Verbindungspartnern entsteht, die sich auch ohne oder bei unterbrochener Kraftübertragung nicht löst. Durch die Kombination der beiden Verbindungsarten wird sichergestellt, daß das rnnenrohr sich von der Armierungsschicht praktisch nur unter Zerstörung der kompletten Verbindungsanordnung lösen kann, während der Formschluß am Übergangsstück bewirkt, daß nahezu beliebige Materialien für das Übergangsstück eingesetzt werden können, ohne daß bei der Verbindungsanordnung insgesamt selbst bei großer Belastung die axiale Sicherung verlorengeht.•
Vorteilhaft greift die Armierungsschicht hinter einen Absatz des Übergangsstückes, der sich im wesentlichen senkrecht zur Außenfläche des Rohrstückes erstreckt. Eine Belastung auf Zug kann daher das Übergangsstück nicht vom Innenrohr trennen. "Cohesive" means a connection in which the connection partners are held together by atomic or molecular forces. "Form-fit" means a connection that is formed by intermeshing or intermeshing of connection partners, which does not come off even without or with interrupted power transmission. The combination of the two types of connection ensures that the inner tube can practically only detach from the reinforcement layer by destroying the complete connection arrangement, while the positive connection on the transition piece means that almost any materials can be used for the transition piece without the connection arrangement as a whole the axial locking is lost even under heavy loads. The reinforcing layer advantageously engages behind a shoulder of the transition piece, which extends essentially perpendicular to the outer surface of the pipe piece. A load on train can therefore not separate the transition piece from the inner tube.
Weiterhin weist das Übergangsstück vorzugsweise über zumindest einen Teil seiner Länge, die von der Armierungsschicht umgeben ist, einen polygonalen Querschnitt auf. Damit ist für die Verdrehsicherheit des Übergangsstückes gegenüber der Armierungsschicht gesorgt. Furthermore, the transition piece preferably has a polygonal cross section over at least part of its length, which is surrounded by the reinforcement layer. This ensures that the transition piece does not twist with respect to the reinforcement layer.
Im Kopplungsbereich von Innenrohr und Übergangsstück kann mindestens ein Dichtelement vorgesehen sein, wobei weiterhin vorteilhaft das mindestens eine Dichtelement ein O-Ring ist, der in einer im Innenrohr und/oder im Übergangsstück vorgesehenen Nut untergebracht ist. Als Dichtelemente können auch Elastomer-Elemente oder dergleichen verwendet werden. Bevorzugt sind zwei Dichtelemente vorgesehen, welche axial voneinander beabstandet sind. At least one sealing element can be provided in the coupling area of the inner tube and transition piece, the at least one sealing element advantageously also being an O-ring which is accommodated in a groove provided in the inner tube and / or in the transition piece. Elastomer elements or the like can also be used as sealing elements. Two sealing elements are preferably provided, which are axially spaced apart.
Dann nämlich kann über dem Innenrohr im Kopplungsbereich eine Hülse angebracht werden, welche die Dichtelemente gleichmäßig vorverpreßt. Die Hülse ist auch im Zusammenhang mit nur einem Dichtelement verwendbar. Then a sleeve can be attached over the inner tube in the coupling area, which uniformly pre-compresses the sealing elements. The sleeve can also be used in connection with only one sealing element.
Es ist bevorzugt, wenn die Hülse an ihrer Außenseite mit einer Oberflächenstruktur versehen ist, beispielsweise einer Riffelung oder Rändel, um die formschlüssige Anbindung der Armierungsschicht zu verbessern. It is preferred if the outside of the sleeve is provided with a surface structure, for example a corrugation or knurl, in order to improve the positive connection of the reinforcement layer.
Zumindest einer der Kantenbereiche der Hülse sollte eine Fase aufweisen, und zwar derjenige Kantenbereich, der dem Innenrohr zugewandt ist. Damit wird ein weicher Übergang der Armierungsschicht vom Innenrohr zur Hülse gewährleistet. At least one of the edge areas of the sleeve should have a bevel, specifically that edge area which faces the inner tube. This ensures a smooth transition of the reinforcement layer from the inner tube to the sleeve.
Weiter vorteilhaft kann das Übergangsstück an seiner Außenseite einen Ringflansch aufweisen, der die Armierungsschicht noch besser axial sichert. The transition piece can further advantageously have an annular flange on its outside, which secures the reinforcement layer even more axially.
Für die Anbindung an weiterführendes Material weist das freiliegende Ende des Übergangsstückes nach einer bevorzugten Ausführungsform ein Anschlußgewinde und ein oder mehrere Dichtelemente auf.
Die Armierungsschicht besteht bevorzugt aus in thermoplastischem Kunststoff eingebettetem Fasermaterial. Dann nämlich kann die stoffschlüssige Anbindung an das Innenrohr dadurch geschehen, daß die als Endlosmaterial vorliegenden Fasern durch beispielsweise Kleben oder Schweißen unlösbar mit dem Innenrohr aus thermoplastischem Kunststoff verbunden werden, während sie in einer oder mehreren Lagen um das Innenrohr und um das Übergangsstück gewickelt werden. According to a preferred embodiment, the exposed end of the transition piece has a connection thread and one or more sealing elements for the connection to further material. The reinforcement layer preferably consists of fiber material embedded in thermoplastic. Then the cohesive connection to the inner tube can take place in that the fibers present as continuous material are permanently connected to the inner tube made of thermoplastic material, for example by gluing or welding, while they are wound in one or more layers around the inner tube and around the transition piece.
Im folgenden soll die Erfindung lediglich beispielhaft anhand der beigefügten einzigen Zeich- nungsfigur erläutert werden, die eine Längsschnittansicht durch eine Ausführungsform einer Verbindungsanordnung gemäß der vorliegenden Erfindung zeigt. In the following, the invention will be explained only by way of example with reference to the attached single drawing figure, which shows a longitudinal sectional view through an embodiment of a connection arrangement according to the present invention.
Die Verbindungsanordnung besteht dabei aus einem zylindrischen Innenrohr 10 aus thermoplastischem Kunststoff, beispielsweise Polyethylen, Polypropylen, Polyamid oder dergleichen. Das Innenrohr 10 endet auf einer Seite in einem verstärkten Ring 12. Dabei bleibt der Außendurchmesser des Innenrohres 10 über seine Länge im wesentlichen konstant, während der Innendurchmesser im Bereich des verstärkten Ringes 12 verkleinert ist, so daß eine Anlagekante für ein in das Innenrohr 10 einzuschiebendes Rohr, beispielsweise RTP-Rohr, gebildet wird. Auf der der Rohrachse C des Innenrohres 10 zugewandten Fläche des Innenrohres 10 ist eine Heizwendel 14 angebracht, die über elektrische Kontakte, von denen nur einer 16 gezeigt ist, mit einer Energiequelle verbindbar ist, so daß das eingeschobene Rohr mittels Heizwendelschweißtechnik mit der Verbindungsanordnung verschweißt werden kann. Ein Übergangsstück 20 ist so in das Innenrohr 10 eingeschoben, daß ein Ringflansch 22 gegen die zweite Anlagefläche des verstärkten Ringes 12 des Innenrohres 10 zu liegen kommt. In dem zum Innenrohr 10 weisenden Abschnitt des Übergangsstückes 20 vor dem Ringflansch 22 sind zwei beabstandete Ringnuten 24, 24' vorgesehen, welche jeweils ein Dichtelemente 26, 26' aufnehmen. Durch die Dichtelemente 26, 26' wird für die fhύddichte Verbindung zwischen dem Rohr 10 und Übergangsstück 20 gesorgt. Der den verstärkten Ring 12 des Innenrohrs 10 umgebende Bereich der Verbindungsanordnung wird im folgenden auch als "Kopplungsbereich A" bezeichnet. Im Kopplungsbereich A liegt über dem verstärkten Ring 12 eine Hülse 30, beispielsweise aus Stahl bestehend, die für eine Vorverpressung der Dichtelemente 26, 26' sorgt. Die Hülse 30 weist eine Fase 32 auf, die zum Innenrohr 10 hin gerichtet ist. Diese Fase 32 sorgt für einen weichen Übergang der Armierungsscbicht 40 vom Innenrohr 10 zum Kopplungsbereich A. Im dargestellten Beispiel überdeckt die Armierungsschicht 40 das
Innenrohr 10 vollständig und das Übergangsstück 20 teilweise. Es kann auch daran gedacht werden, daß die Armierungsschicht auch das Innenrohr 10 nur teilweise überdeckt und beispielsweise vor dem elektrischen Kontakt 16 endet. Die Armierungsschicht 40 wird gebildet, indem Endlos-Fasermaterial in der gewünschten Dicke um das Innenrohr 10, den Kontaktbereich A und einen Abschnitt B des Übergangsstückes 20 gewickelt wird, der durch einen Flansch 28 begrenzt wird. Die stoffschlüssige Verbindung der Armierungsschicht 20 mit dem Innenrohr 10 wird durch irgendeine bekannte Maßnahme bewirkt, wie Kleben, Schweißen oder dergleichen. Somit können Armierungsschicht 40 und Innenrohr 10 nicht voneinander getrennt werden, ohne die gesamte Verbindungsanordnung zu zerstören. Die Dicke der Armierungsschicht 40 bestimmt sich aus der zu erwartenden Druckbelastung der Verbindungsanordnung. Während die Dicke der Armierungsschicht 40 im Bereich des Innenrohres 10 und im Kopplungsbereich A im wesentlichen konstant ist, ist sie im Abschnitt B des Übergangsstücks 20, also beginnend mit der hinteren Fläche des Ringflansches 22, deutlich größer. Unter diesem verstärkten Abschnitt 42 der Armierungsschicht 40 weist das Übergangsstück 20 einen polygonalen Querschnitt auf, so daß beispielsweise ein Sechskantprofil gebildet wird, welches die Verdrehsicherheit des Übergangsstücks 20 gegenüber dem Innenrohr 10 sicherstellt. Der verstärkte Abschnitt 42 endet am Begrenzungsflansch 28, so daß zusätzlich zum Formschluß, gebildet durch den Hinterschnitt des Ringflansches 22, der verstärkte Abschnitt 42 der Armierungsschicht 40 dafür sorgt, daß eine axiale Sicherung gewährleistet ist. Das freiliegende Ende des Übergangsstücks 20 ist schließlich mit einem Anschlußgewinde 50 mit einem abdichtendem O-Ring oder ähnlichem Dichtelement 52 versehen, um an weiterführende Bauteile anbinden zu können. The connection arrangement consists of a cylindrical inner tube 10 made of thermoplastic material, for example polyethylene, polypropylene, polyamide or the like. The inner tube 10 ends on one side in a reinforced ring 12. The outer diameter of the inner tube 10 remains substantially constant over its length, while the inner diameter in the region of the reinforced ring 12 is reduced, so that a contact edge for a to be inserted into the inner tube 10 Pipe, for example RTP pipe, is formed. On the surface of the inner tube 10 facing the tube axis C of the inner tube 10, a heating coil 14 is attached, which can be connected to an energy source via electrical contacts, only one of which 16 is shown, so that the inserted tube is welded to the connection arrangement by means of heating coil welding technology can. A transition piece 20 is inserted into the inner tube 10 such that an annular flange 22 comes to rest against the second contact surface of the reinforced ring 12 of the inner tube 10. In the section of the transition piece 20 facing the inner tube 10 in front of the ring flange 22, two spaced ring grooves 24, 24 'are provided, each of which receives a sealing element 26, 26'. The sealing elements 26, 26 'ensure the tight connection between the tube 10 and the transition piece 20. The area of the connection arrangement surrounding the reinforced ring 12 of the inner tube 10 is also referred to below as the “coupling area A”. In the coupling area A there is a sleeve 30, for example made of steel, above the reinforced ring 12, which ensures that the sealing elements 26, 26 'are pre-compressed. The sleeve 30 has a chamfer 32 which is directed towards the inner tube 10. This chamfer 32 ensures a smooth transition of the reinforcement layer 40 from the inner tube 10 to the coupling area A. In the example shown, the reinforcement layer 40 covers this Inner tube 10 completely and the transition piece 20 partially. It can also be considered that the reinforcement layer also only partially covers the inner tube 10 and ends, for example, before the electrical contact 16. The reinforcement layer 40 is formed by winding continuous fiber material in the desired thickness around the inner tube 10, the contact area A and a section B of the transition piece 20, which is delimited by a flange 28. The cohesive connection of the reinforcement layer 20 to the inner tube 10 is effected by any known measure, such as gluing, welding or the like. Thus, the reinforcement layer 40 and the inner tube 10 cannot be separated from one another without destroying the entire connection arrangement. The thickness of the reinforcement layer 40 is determined from the pressure load to be expected of the connection arrangement. While the thickness of the reinforcement layer 40 is essentially constant in the area of the inner tube 10 and in the coupling area A, it is significantly greater in section B of the transition piece 20, that is to say starting with the rear surface of the ring flange 22. Under this reinforced section 42 of the reinforcement layer 40, the transition piece 20 has a polygonal cross section, so that, for example, a hexagonal profile is formed, which ensures that the transition piece 20 is secured against rotation with respect to the inner tube 10. The reinforced section 42 ends at the limiting flange 28, so that in addition to the positive connection, formed by the undercut of the ring flange 22, the reinforced section 42 of the reinforcement layer 40 ensures that axial securing is ensured. The exposed end of the transition piece 20 is finally provided with a connecting thread 50 with a sealing O-ring or similar sealing element 52 in order to be able to connect to further components.
Die in der vorstehenden Beschreibung, in der Zeichnung sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung wesentlich sein.
The features of the invention disclosed in the above description, in the drawing and in the claims can be essential for realizing the invention both individually and in any combination.
Claims
1. Verbindungsanordnung zum Anbinden eines Faserverbund-Kunststoffrohres oder eines armierten Kunststoffrohres an ein weiterführendes Bauteil, mit 1. Connection arrangement for connecting a fiber composite plastic tube or a reinforced plastic tube to a further component, with
- einem Innenrohr (10) aus thermoplastischem Kunststoff, welches auf seiner der Rohrachse (C) zugewandten Fläche mit einer Leiteranordnung (14) für das Elektroschweißen versehen ist, gekennzeichnet durch - An inner tube (10) made of thermoplastic material, which is provided on its surface facing the tube axis (C) with a conductor arrangement (14) for electric welding, characterized by
- ein Übergangsstück (20), das entlang einem Kopplungsbereich (A) in das Innenrohr- A transition piece (20) which along a coupling area (A) in the inner tube
(10) eingeschoben ist, und (10) is inserted, and
- eine Armierungsschicht (40), welche das Iπnenrolir (10) und das Übergangsstück (20) zumindest teilweise umgibt; wobei die Armierungsschicht (40) stoffschlüssig mit dem Innenrohr (10) und kraftschlüssig mit dem Übergangsstück (20) verbunden ist. - A reinforcement layer (40) which at least partially surrounds the inner roller (10) and the transition piece (20); wherein the reinforcement layer (40) is integrally connected to the inner tube (10) and non-positively to the transition piece (20).
2. Verbindungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Armierungsschicht (40) einen Absatz (22) des Übergangsstückes (20) hintergreift. 2. Connection arrangement according to claim 1, characterized in that the reinforcing layer (40) engages behind a shoulder (22) of the transition piece (20).
3. Verbindungsanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Übergangsstück (20) über zumindest einen Teil (B) seiner Länge, die von der Armierungsschicht (40) umgeben ist, einen polygonalen Querschnitt aufweist. 3. Connection arrangement according to claim 1 or 2, characterized in that the transition piece (20) over at least part (B) of its length, which is surrounded by the reinforcing layer (40), has a polygonal cross section.
4. Verbindungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß im Kopplungsbereich (A) von Innenrohr (10) und Übergangsstück (20) mindestens ein Dichtelement (26, 26') vorgesehen ist. 4. Connection arrangement according to claim 1, characterized in that in the coupling region (A) of the inner tube (10) and transition piece (20) at least one sealing element (26, 26 ') is provided.
5. Verbindungsanordnung nach Anspruch 4, dadurch gekennzeichnet, daß das mindestens eine Dichtelement (26, 26') ein O-Ring, der in einer im Innenrohr (10) und/oder im Über-
gangsstück (20) vorgesehenen Nut (24, 24') untergebracht ist, eine Kombination aus O- Ring und Nutring, ein Elastomer-Element oder dergleichen ist. 5. Connection arrangement according to claim 4, characterized in that the at least one sealing element (26, 26 ') is an O-ring which in an in the inner tube (10) and / or in the over- Gangsstück (20) provided groove (24, 24 ') is housed, a combination of O-ring and groove ring, an elastomer element or the like.
6. Verbindungsanordnung nach Ansprach 4 oder 5, dadurch gekennzeichnet, daß zwei Dichtelemente (26, 26') axial voneinander beabstandet vorgesehen sind. 6. Connection arrangement according spoke 4 or 5, characterized in that two sealing elements (26, 26 ') are provided axially spaced apart.
7. Verbindungsanordnung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß über dem Innenrohr (10) im Kopplungsbereich (A) eine Hülse (30) angebracht ist, welche das Dichtelement oder die Dichtelemente (26, 26') vorverpreßt. 7. Connection arrangement according to one of claims 4 to 6, characterized in that a sleeve (30) is attached above the inner tube (10) in the coupling region (A), which pre-compresses the sealing element or the sealing elements (26, 26 ').
8. Verbindungsanordnung nach Anspruch 7, dadurch gekennzeichnet, daß die Hülse (30) an ihrer Außenseite mit einer Oberflächenstruktur zur formschlüssigen Anbindung der Ar- mierangsschicht (40) versehen ist. 8. Connection arrangement according to claim 7, characterized in that the sleeve (30) is provided on its outside with a surface structure for the positive connection of the armature layer (40).
9. Verbindungsanordnung nach Anspruch 7, dadurch gekennzeichnet, daß zumindest einer der Kantenbereiche der Hülse (30) eine Fase (32) aufweist. 9. Connection arrangement according to claim 7, characterized in that at least one of the edge regions of the sleeve (30) has a chamfer (32).
10. Verbindungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Übergangsstück (20) an seiner Außenseite einen Ringflansch (28) aufweist, der die Armierungsschicht (40) axial sichert. 10. Connection arrangement according to claim 1, characterized in that the transition piece (20) on its outside has an annular flange (28) which axially secures the reinforcing layer (40).
11. Verbindungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das freiliegende Ende des Übergangsstückes (20) ein Anschlußgewinde (50) und ein oder mehrere Dichtelemente aufweist. 11. Connection arrangement according to claim 1, characterized in that the exposed end of the transition piece (20) has a connecting thread (50) and one or more sealing elements.
12. Verbindungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Armierungsschicht (40) aus in thermoplastischen Kunststoff eingebettetem Fasermaterial besteht.
12. Connection arrangement according to claim 1, characterized in that the reinforcement layer (40) consists of embedded in thermoplastic fiber material.
Priority Applications (1)
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CN2006800457203A CN101321982B (en) | 2005-12-06 | 2006-12-01 | Connecting assembly for joining a fiber-reinforced plastic tube to a further part |
Applications Claiming Priority (2)
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DE202005019120U DE202005019120U1 (en) | 2005-12-06 | 2005-12-06 | Connecting arrangement for bonding a fiber composite plastic pipe to a continuing component |
DE202005019120.5 | 2005-12-06 |
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WO2007065407A2 true WO2007065407A2 (en) | 2007-06-14 |
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PCT/DE2006/002136 WO2007065407A2 (en) | 2005-12-06 | 2006-12-01 | Connecting assembly for joining a fiber-reinforced plastic tube to a further part |
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CN (1) | CN101321982B (en) |
DE (1) | DE202005019120U1 (en) |
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NL1009169C2 (en) * | 1998-05-14 | 1999-11-16 | Polva Pipelife Bv | Welded sleeve connection for high pressure pipe. |
CN2593019Y (en) * | 2002-12-18 | 2003-12-17 | 台州三力水暖制品有限公司 | Pipe connection structure |
-
2005
- 2005-12-06 DE DE202005019120U patent/DE202005019120U1/en not_active Expired - Lifetime
-
2006
- 2006-12-01 WO PCT/DE2006/002136 patent/WO2007065407A2/en active Application Filing
- 2006-12-01 RU RU2008127259/06A patent/RU2426933C2/en not_active IP Right Cessation
- 2006-12-01 CN CN2006800457203A patent/CN101321982B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2314597A (en) | 1996-06-25 | 1998-01-07 | Uponor Bv | Electrofusion fitting for a plastics pipe with gripping means |
WO2005121627A1 (en) | 2004-06-08 | 2005-12-22 | Friatec Aktiengesellschaft | Connecting arrangement, particularly for the non-positive fastening of at least one fiber composite component to another component |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101985994A (en) * | 2010-09-26 | 2011-03-16 | 南京承创环保节能科技有限公司 | Plastic insert |
Also Published As
Publication number | Publication date |
---|---|
CN101321982B (en) | 2010-06-09 |
WO2007065407A3 (en) | 2007-08-23 |
RU2426933C2 (en) | 2011-08-20 |
RU2008127259A (en) | 2010-01-20 |
CN101321982A (en) | 2008-12-10 |
DE202005019120U1 (en) | 2006-02-09 |
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