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 PDF

Info

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
Application number
PCT/DE2006/002136
Other languages
German (de)
French (fr)
Other versions
WO2007065407A3 (en
Inventor
Dirk Elsasser
Werner Goerke
Fabian Maier
Original Assignee
Friatec Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Friatec Aktiengesellschaft filed Critical Friatec Aktiengesellschaft
Priority to CN2006800457203A priority Critical patent/CN101321982B/en
Publication of WO2007065407A2 publication Critical patent/WO2007065407A2/en
Publication of WO2007065407A3 publication Critical patent/WO2007065407A3/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/20Connecting 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
    • F16L47/24Connecting 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/3404Joining 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
    • B29C65/342Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint 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
    • B29C66/1222Joint 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint 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
    • B29C66/1224Joint 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52291Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52295Joining tubular articles involving the use of a socket said socket comprising reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52296Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52298Joining tubular articles involving the use of a socket said socket being composed by several elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/61Joining from or joining on the inside
    • B29C66/612Making circumferential joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/721Fibre-reinforced materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/721Fibre-reinforced materials
    • B29C66/7214Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141Fibres of continuous length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/739General 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
    • B29C66/7392General 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
    • B29C66/73921General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/74Joining plastics material to non-plastics material
    • B29C66/742Joining plastics material to non-plastics material to metals or their alloys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02Welded joints; Adhesive joints
    • F16L47/03Welded joints with an electrical resistance incorporated in the joint
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/3468Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General 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

■Ansprüche ■ 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.
PCT/DE2006/002136 2005-12-06 2006-12-01 Connecting assembly for joining a fiber-reinforced plastic tube to a further part WO2007065407A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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)

Application Number Priority Date Filing Date Title
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

Publications (2)

Publication Number Publication Date
WO2007065407A2 true WO2007065407A2 (en) 2007-06-14
WO2007065407A3 WO2007065407A3 (en) 2007-08-23

Family

ID=35854141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/002136 WO2007065407A2 (en) 2005-12-06 2006-12-01 Connecting assembly for joining a fiber-reinforced plastic tube to a further part

Country Status (4)

Country Link
CN (1) CN101321982B (en)
DE (1) DE202005019120U1 (en)
RU (1) RU2426933C2 (en)
WO (1) WO2007065407A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105666855B (en) * 2016-03-28 2019-01-25 武汉理工大学 A kind of splicing connection structure of composite tube

Citations (2)

* Cited by examiner, † Cited by third party
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150922A (en) * 1989-01-11 1992-09-29 Osaka Gas Co., Ltd. Electrofusion joint and hot water supply header using the same
DE19813599A1 (en) * 1998-03-27 1999-09-30 Bauku Troisdorfer Bau Und Kuns Roller laminated tube made up of two lengths of thermoplastic tube
DE29900796U1 (en) * 1998-04-03 1999-04-08 Geberit Technik Ag, Jona Device for connecting a pipe socket, tubular fitting or fittings to a pipe
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
EP1756464B1 (en) Connecting arrangement, particularly for the non-positive fastening of at least one fiber composite component to another component
DE102007014049B3 (en) Compensation element for connecting components
DE102007051436A1 (en) Connection system for double-walled pipes
EP2989281A2 (en) Pipe element having a composite pipe and a metal connector
EP0327080B1 (en) Pipe coupling
DE2613682A1 (en) DEVICE FOR THE ELASTIC CLAMPING OF GLASS FIBER RODS
DE2248589C3 (en) Electrically insulating pipe coupling
DE2221674A1 (en) Hose coupling
WO2007065407A2 (en) Connecting assembly for joining a fiber-reinforced plastic tube to a further part
EP1956149B1 (en) Hose, in particular shower hose, with injection-moulded coating
DE19633133C1 (en) Tough, dimensionally-stable multilayer tubing
EP2833007B1 (en) Rotatable connection
DE4005474A1 (en) Pipe connection for safety hose - has additional seal and knurled section, to improve integrity
DE4321162A1 (en) Flexible pipe connection
DE102013011421A1 (en) Method for joining end portion of pultrusion component with component, involves pushing end portion of pultrusion component into receiving area of component, where receiving area is provided with predetermined quantity of adhesive
DE102017003024A1 (en) End element for introducing force into a prefabricated fiber-reinforced plastic composite pipe
EP0950846B1 (en) Piping system
DE102010039384A1 (en) Electrical power steering for motor car, has push rod comprising base body on which toothing and/or screw thread are arranged, where body is made from plastic and toothing and/or screw thread are formed as inserts made of metallic material
DE9107713U1 (en) Electrically heated welding sleeve
DE69510770T2 (en) Pipe connection and process for its manufacture
WO2009024230A2 (en) Pipe coupling
WO2010124815A1 (en) Cylindrical bodies made of a fiber-reinforced plastic
DE29501646U1 (en) Pipe component
WO2000028252A1 (en) Longitudinal non-positive plug-in bushing
DE19743926C1 (en) Pipe connection with basic body

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680045720.3

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2008127259

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 06828591

Country of ref document: EP

Kind code of ref document: A2