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CN114382976A - 凸缘密封件 - Google Patents

凸缘密封件 Download PDF

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Publication number
CN114382976A
CN114382976A CN202111204388.3A CN202111204388A CN114382976A CN 114382976 A CN114382976 A CN 114382976A CN 202111204388 A CN202111204388 A CN 202111204388A CN 114382976 A CN114382976 A CN 114382976A
Authority
CN
China
Prior art keywords
sealing element
welded
flange
clamping
plastic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111204388.3A
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English (en)
Inventor
E·哈西菲克
J·勒施
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
George Fischer Piping Systems PLC
Original Assignee
George Fischer Piping Systems PLC
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 George Fischer Piping Systems PLC filed Critical George Fischer Piping Systems PLC
Publication of CN114382976A publication Critical patent/CN114382976A/zh
Pending legal-status Critical Current

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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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • 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
    • F16L47/14—Flanged joints
    • 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
    • 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
    • B29C65/3444—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 being a ribbon, band or strip
    • 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"
    • B29C65/3472—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 composition of the heated elements which remain in the joint
    • B29C65/3484—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 composition of the heated elements which remain in the joint being non-metallic
    • B29C65/3488—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 composition of the heated elements which remain in the joint being non-metallic being an electrically conductive polymer
    • 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
    • B29C65/562—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 extra joining elements, i.e. which are not integral with the parts to be joined
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C65/76—Making non-permanent or releasable joints
    • 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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • 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
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/55—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 sealing elements being incorporated into the joints, e.g. gaskets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with the pipe
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/162—Flanged joints characterised by the sealing means the pipe ends abutting each other
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
    • 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
    • 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
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2621/00—Use of unspecified rubbers for preformed parts, e.g. for inserts
    • B29K2621/003—Thermoplastic elastomers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

本发明涉及凸缘密封件。用于连接由塑料材料制成的两个管道端部的凸缘连接件和用于组装的方法，包含：由塑料材料制成的彼此相对的两个管端部(2)，其中管端部各自具有预焊接颈部；两个松型凸缘，其中松型凸缘布置在每个管端部处，其中松型凸缘具有用于彼此夹紧的孔；夹紧装置，其中夹紧装置布置在孔中并用来将松型凸缘与管道端部彼此拉在一起；以及密封元件，其中密封元件包括传导性塑料材料并且只包括一种材料。

Description

凸缘密封件
技术领域
本发明涉及一种用于连接由塑料材料制成的两个管道端部的凸缘连接件，凸缘连接件包含：由塑料材料制成的彼此相对的两个管端部，其中管端部各自具有预焊接颈部；两个松型凸缘，其中松型凸缘布置在每个管端部处，其中松型凸缘具有用于彼此夹紧的孔；夹紧装置，其中夹紧装置布置在孔中并用来将松型凸缘与管道端部彼此拉在一起；以及密封元件。
背景技术
WO 2016/184801 A1公开一种凸缘连接件，其中用于加热塑料材料的加热线圈布置在凸缘中，并且凸缘的彼此面对的两个端面彼此直接焊接而没有中间部件。
GB 2 431 135 A也公开一种热塑性材料的凸缘，其中加热线结合于端面和密封元件处，密封元件布置在凸缘的端面处。
US 2003/0075919 A1公开一种凸缘连接件，其中焊接插入件布置在管端部的预焊接颈部之间，其中焊接插入件包含由塑料材料制成的盘，并且该盘被导线环绕，以便加热塑料材料和管端部以用于焊接。
US 6 398 264 B1公开一种用于热激活或加热管道端部的装置。为了将管道端部彼此紧密连接，在两个端面上放置有加热元件，该加热元件加热端部，并且同时向端面施加先前装配到加热元件的密封剂。这使得在装置已被移除之后能够进行管道端部的密封端面连结。
以上提到的连接件的缺点是，在一段时间之后，由于塑料材料开始蠕变，故凸缘连接件变得不紧密。这可在提供机械夹紧装置时借助于连接件的定期再调节或再紧固来克服，其中这样的凸缘连接件在大多数情况下难以利用已安装的管道接近，并且再紧固仅可能达到有限的程度。此外，以上提到的凸缘连接件不可为了维护目的而被释放并且被再次旋拧或重复使用相同的部件，因为部件不确保任何新的密封。
发明内容
本发明的目标是提供凸缘连接件和相关的用于组装的方法，使得意图在更长的一段时间内确保密封，并使得意图减少用于再紧固凸缘连接件的定期操作。此外，意图防止组装错误以及在维护操作之后不可再次使用同一密封元件的事实。
根据本发明实现该目标，因为密封元件包括传导性塑料材料并且只包括一种材料。
根据本发明的用于连接由塑料材料制成的两个管道的凸缘连接件包含由塑料材料制成的彼此相对的两个管端部。管端部各自具有预焊接颈部。为了将两个预焊接颈部彼此夹紧在一起，在每个管端部处布置松型凸缘。松型凸缘具有孔，在孔中布置用于将松型凸缘彼此夹紧在一起的夹紧装置。由于将松型凸缘拉在一起，所以同心地布置在其中的管端部也利用预焊接颈部相应地彼此拉在一起。另外，根据本发明的凸缘连接件包含密封元件，其中密封元件包括传导性塑料材料并且只包括一种材料。由于传导性塑料材料，密封元件可借助于所供应的电功率来加热。因此，密封元件没有额外的单独部件，或者密封元件构造成单件。这具有不需要额外的组装复杂性的优点。此外，密封元件具有以下优点：不会与具有集成加热线的常规密封件一样发生线放电。由于密封元件不仅被压在预焊接颈部上而且还被焊接在预焊接颈部上或被焊接到预焊接颈部的事实，确保了凸缘连接件的更高水平的紧密性。
密封元件优选地使用注射模制方法生产并且构造为注射模制的部件。
用于将管端部夹紧在一起的松型凸缘可构造为塑料部件和构造为金属部件。当然，松型凸缘也可由复合材料生产。
优选地，密封元件的传导性塑料材料以均质的方式构造。由此，密封元件以均匀的方式传导电功率并以均匀的方式被加热。由于密封元件的加热，材料变得更软，并且密封元件更好地适配于预焊接颈部的端面的表面，并且在密封元件与预焊接颈部之间实现最适宜的形状配合连接。另外，利用特定的材料组合，在密封元件与预焊接颈部之间，除了形状配合连接之外，还可获得材料接合连接。
已经发现，在彼此相对的预焊接颈部之间只布置密封元件是有利的。这具有以下优点：在组装期间没有可被忘记的额外的部件，并且因此降低了连接不充分的风险。
导电热塑性弹性体材料(TPE)用作用于密封元件的优选材料。优选地，TPE以弹性方式构造，借此优化密封能力。由于通过所供应的功率的加热，由热塑性弹性体材料制成的密封元件变得更软并且最佳地适配于预焊接颈部的端面的表面。
优选地，由传导性材料优选地制成的用于供应功率的接触元件布置在密封元件上，其中该材料不必与密封元件的材料相同。
已经发现优选实施例是当预焊接颈部由聚乙烯(PE)制成时。与导电热塑性弹性体材料的密封元件组合，两种塑料材料形成材料接合连接，这继而在增加的程度上确保根据本发明的凸缘连接件的密封。
还已经发现预焊接颈部在端面处具有凹槽是有利的。当连接件被夹紧在一起时，密封元件被压入凹槽中并且由此确保承受高压的形状配合连接。
根据优选实施例，凹槽在预焊接颈部中构造为同心延伸的圆。
根据本发明实现该目标，因为在用于组装凸缘连接件的方法中，在将松型凸缘布置在彼此相对的管端部处并实施夹紧在一起之前，密封元件已经以不可释放的方式布置在预焊接颈部的端面上。
还已经发现有利的是，通过再次加热预焊接颈部能够释放密封元件，并且在清洁预焊接颈部和密封元件之后能够再次使用密封元件。
根据本发明的用于组装凸缘连接件的方法具有以下步骤：
将松型凸缘布置在由塑料材料制成的彼此相对的管端部处，使用夹紧装置将松型凸缘夹紧在一起，其中夹紧在一起仅实施直到轻微的预张紧。
随后，向传导性密封元件施加电流，其中传导性密封元件布置在管端部或管端部的预焊接颈部之间。由于向密封元件供应电流，故在密封元件的至少一侧与预焊接颈部之间实现焊接。随后，实施使用夹紧装置将松型凸缘夹紧在一起，直到需要的紧固扭矩。在根据本发明的用于组装凸缘连接件的方法期间，在将松型凸缘布置在彼此相对的管端部上并实施夹紧在一起之前，传导性密封元件已经以不可释放的方式布置在预焊接颈部的端面上。优选地，密封元件在工厂中已经固定到预焊接颈部的端面，这可已经通过借助于电流加热传导性密封元件且因此将密封元件焊接到预焊接颈部来实施，或者备选地，密封元件也可利用在焊接操作之前移除的粘附剂或机械固定装置来临时固定。这提供密封元件不可被忘记的优点，并由此降低了组装错误的风险。还确保正确的密封元件用于对应的凸缘连接件。
在根据本发明的方法中，提供以下优点：密封元件可在第一次加热之后被再次加热，不管是要从预焊接颈部移除密封元件(其中这也可备选地不加热而借助于分离来实施)，还是用于再次焊接到预焊接颈部(例如由于凸缘连接件因管道的移位或其它适配而需要的调节)。
所有实施例可彼此自由组合，并且方法的特征可适用于凸缘连接件，并且反之亦然。
附图说明
参考附图描述本发明的实施例，其中本发明不仅限于实施例。在图中：
图1是根据本发明的凸缘连接件的截面图示，并且
图2是根据本发明的凸缘连接件的三维图示。
具体实施方式
图1中描绘的图是根据本发明的用于连接由塑料材料制成的管道端部的凸缘连接件1的截面视图。凸缘连接件1包含由塑料材料制成的彼此相对的两个管端部2，其中管端部相对于彼此同心地布置。管端部2各自具有预焊接颈部3，管端部2借助于预焊接颈部3彼此夹紧在一起，这在图2中也可清楚地看到。在每种情况下，在管端部2处布置有使用夹紧装置6彼此夹紧在一起的松型凸缘4。管端部2的预焊接颈部3布置在松型凸缘4之间，并由此被压在一起。夹紧装置6布置在为此目的而设置的松型凸缘4中的孔5中，并且优选地以均匀的方式分布。密封元件7布置在两个预焊接颈部3之间，其中密封元件7包括传导性塑料材料。为了改进密封，密封元件7借助于电流加热，这继而使密封元件7的材料更软，并且由此密封元件7在凸缘被夹紧时更好地抵靠预焊接颈部3的端面装配，并对应良好地密封。为了供应功率，使用布置在密封元件7上的接触元件8。接触元件8在图2中纯粹示意性地图示，接触元件8的构造根据连接可能性或凸缘连接件的可接近性而开发。除了由此实现的最适宜的形状配合连接之外，通过密封元件和预焊接颈部3的对应材料选择，还可实现材料接合连接，该连接继而有助于密封凸缘连接件的改进。为了组装，密封元件7已经固定到管端部的预焊接颈部3，借此确保密封元件7不会被忘记或丢失，并且不会安装错误的密封元件7。
参考数字列表
1 凸缘连接件
2 管端部
3 预焊接颈部
4 松型凸缘
5 孔
6 夹紧装置
7 密封元件
8 接触元件。

Claims (10)

1.凸缘连接件(1)，其用于连接由塑料材料制成的两个管道端部，所述凸缘连接件(1)包含：由塑料材料制成的彼此相对的两个管端部(2)，其中所述管端部(2)各自具有预焊接颈部(3)；两个松型凸缘(4)，其中松型凸缘(4)布置在每个管端部(2)处，其中所述松型凸缘(4)具有用于彼此夹紧的孔(5)；夹紧装置(6)，其中所述夹紧装置(6)布置在所述孔(5)中并用来将所述松型凸缘(4)与所述管道端部彼此拉在一起；以及密封元件(7)，其特征在于，所述密封元件(7)包括传导性塑料材料并且只包括一种材料。
2.根据权利要求1所述的凸缘连接件(1)，其特征在于，所述密封元件(7)构造成单件。
3.根据权利要求1或2所述的凸缘连接件(1)，其特征在于，所述传导性塑料材料以均质的方式构造。
4.根据权利要求1或3中的任一项所述的凸缘连接件(1)，其特征在于，在彼此相对的所述预焊接颈部(3)之间只布置所述密封元件(7)。
5.根据权利要求1至4中的任一项所述的凸缘连接件(1)，其特征在于，所述密封元件(7)包括传导性热塑性弹性体材料(TPE)。
6.根据权利要求1至5中的任一项所述的凸缘连接件(1)，其特征在于，所述预焊接颈部(3)由聚乙烯(PE)制成。
7.根据权利要求1至6中的任一项所述的凸缘连接件(1)，其特征在于，所述预焊接颈部(3)在端面处具有凹槽。
8.根据权利要求1至7中的任一项所述的凸缘连接件(1)，其特征在于，所述预焊接颈部(3)中的所述凹槽构造为同心延伸的圆。
9.用于组装根据权利要求1至8中的任一项所述的凸缘连接件(1)的方法，所述方法具有以下步骤：
将所述松型凸缘(4)布置在由塑料材料制成的彼此相对的管端部(2)处；使用夹紧装置(6)将所述松型凸缘(4)夹紧在一起，其中所述夹紧在一起仅实施直到轻微的预张紧；向传导性密封元件(7)施加电流，其中所述传导性密封元件(7)布置在所述管端部(2)或所述管端部(2)上的所述预焊接颈部(3)之间，以便在所述密封元件(7)的至少一侧与预焊接颈部(3)之间实施焊接；随后使用夹紧装置(6)将所述松型凸缘(4)夹紧在一起，直到需要的紧固扭矩，其特征在于，在将所述松型凸缘(4)布置在彼此相对的所述管端部(2)上并实施所述夹紧在一起之前，所述密封元件(7)已经以不可释放的方式布置在预焊接颈部(3)的所述端面处。
10.根据权利要求9所述的用于组装凸缘连接件(1)的方法，其特征在于，通过再次加热所述预焊接颈部(3)可释放所述密封元件(7)，并且在清洁所述预焊接颈部(3)和所述密封元件(7)之后可再次使用所述密封元件(7)。
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US20220120365A1 (en) 2022-04-21
EP3985294B1 (de) 2023-09-27
CH717971A2 (de) 2022-04-29
JP2022066181A (ja) 2022-04-28
EP3985294C0 (de) 2023-09-27
EP3985294A1 (de) 2022-04-20

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