WO2023070869A1 - 一种钢丝网增强复合管高压连接接头及其制造方法 - Google Patents

一种钢丝网增强复合管高压连接接头及其制造方法 Download PDF

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WO2023070869A1
WO2023070869A1 PCT/CN2021/137808 CN2021137808W WO2023070869A1 WO 2023070869 A1 WO2023070869 A1 WO 2023070869A1 CN 2021137808 W CN2021137808 W CN 2021137808W WO 2023070869 A1 WO2023070869 A1 WO 2023070869A1
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Prior art keywords
composite pipe
steel wire
section
horizontal section
layer
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PCT/CN2021/137808
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English (en)
French (fr)
Inventor
陈江慧
霍福磊
刘跃明
金崇阳
褚展鹏
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临海伟星新型建材有限公司
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Publication of WO2023070869A1 publication Critical patent/WO2023070869A1/zh

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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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/04—Making preforms by assembling preformed material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating tubular articles
    • B29C45/14614—Joining tubular articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
    • B29C2045/14245—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity using deforming or preforming means outside the mould cavity
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
    • B29C2045/14877—Pretreatment of the insert, e.g. etching, cleaning preheating or precooling the insert for non-deforming purposes

Definitions

  • the invention relates to the technical field of composite pipe connection, in particular to a steel wire mesh reinforced composite pipe high-pressure connection joint.
  • Steel mesh reinforced composite pipe is a composite pipe product developed on the basis of polyethylene pipe. It uses a mesh skeleton formed by high-strength steel wire spirally wound left and right as the reinforcement layer, and can be used in medium and high pressure industrial fields.
  • steel mesh reinforced composite pipes are mostly used in the field of low-pressure pipelines. So far, the connection methods of steel mesh skeleton polyethylene composite pipes are mainly two methods of electrofusion connection and metal crimping, and most of the leakage failures of pipelines are at the joints.
  • Composite pipes are different from solid wall pipes in that composite pipes have a steel wire reinforcement layer, and the difference in elastic modulus between steel wires and plastics is almost 200 times.
  • the present invention provides a steel mesh reinforced composite pipe high-pressure connection joint with reasonable design, high connection strength, low cost, and convenient construction and connection, and a manufacturing method thereof.
  • a steel mesh reinforced composite pipe high-pressure connection joint comprising a connection component 1 arranged at the end of a first composite pipe, a connection component 2 arranged at the end of a second composite pipe and used for fixing between the connection component 1 and the connection component 2
  • the connecting lock ring; the connecting ends of the first composite pipe and the second composite pipe are respectively provided with exposed sections of the steel wire layer;
  • the connecting component two includes the exposed steel wire layer arranged on the second composite pipe
  • the welded metal ring includes a metal ring body, annular steps and holes, the annular steps are arranged at the two ends of the metal ring body, and a set of reinforcing ribs are arranged between the annular steps along the circumferential direction, so that The holes are evenly distributed along the circumference of the metal ring body.
  • the outer crimping sleeve includes a first horizontal section, a first flared section and a second horizontal section, one end of the first flared section is connected to the first horizontal section, and the first flared section The other end is connected to the second horizontal section, and the diameter of the second horizontal section is larger than the diameter of the first horizontal section, and the inner wall of the first horizontal section is provided with several first serrations, and the second horizontal section is far away from the first flaring section One end is provided with an outwardly extending outer limiting protruding ring.
  • the outer crimping sleeve 2 includes a horizontal section, a flared section and an external threaded section, one end of the flared section is connected to the horizontal section, the other end of the flared section is connected to the external threaded section, and the external threaded section
  • the diameter of the section is larger than that of the horizontal section, and the inner wall of the horizontal section is provided with several second sawtooths.
  • connection assembly one is flush with the end of the outer crimping sleeve
  • bottom of the injection molded part at the end of the connection assembly one is flush with the inner layer of the first composite pipe
  • connection The top of the injection molded part at the end of component one is filled between the outer crimping sleeve one and the first composite pipe.
  • the side part of the injection molded part at the end of the connection assembly 2 is flush with the ends of the two outer crimping sleeves, the bottom of the injection molded part at the end of the connection assembly 2 is flush with the inner layer of the second composite pipe, and the The top of the injection molded part at the end of the connection assembly 2 is filled between the outer crimping sleeve 2 and the second composite pipe.
  • the lock ring includes a lock ring body, one end of the lock ring body is provided with an inner limit protrusion ring extending inward, and an internal thread is provided inside the lock ring body.
  • a method for manufacturing a steel mesh reinforced composite pipe high-pressure connection joint comprising the following steps:
  • the beneficial effects of the present invention are: the high-voltage connection joint of the present invention is provided with a welding metal ring and welded with the steel wire reinforcement layer, and at the same time, injection molding is performed at the end of the position of the welding metal ring, which greatly improves the pressure bearing of the connection compared with the existing connection method ability.
  • the joint of the invention well constrains the steel wire, which not only solves the problem of compressive strength, but also does not cause diameter reduction.
  • Fig. 1 is the overall three-dimensional structure schematic diagram of the present invention
  • Fig. 2 is a schematic diagram of the internal structure of the present invention.
  • Fig. 3 is a structural schematic diagram of an outer crimping sleeve of the present invention.
  • Fig. 4 is the structural representation of welding metal ring of the present invention.
  • Fig. 5 is a schematic diagram of the second structure of the outer crimping sleeve of the present invention.
  • Fig. 6 is a schematic structural view of the locking ring of the present invention.
  • the first composite pipe 101, the inner layer; 102, the steel wire layer; 103, the outer layer; 2, the outer crimping sleeve one; 201, the first horizontal section; 202, the first flaring section; 203, The second horizontal section; 204, the outer limiting convex ring; 205, the first sawtooth; 3, the welded metal ring; 301, the metal ring body; 302, the annular step; 303, the hole; 304, the reinforcing rib; 4, the end Injection molded parts; 5, lock ring; 501, lock ring body; 502, inner limit convex ring; 503, inner thread; 6, outer crimping sleeve 2; 601, horizontal section; 602, flared section; Section; 604, the second sawtooth; 7, the second compound pipe.
  • a steel mesh reinforced composite pipe high-pressure connection joint includes a first composite pipe 1, an inner layer 101, a steel wire layer 102, an outer layer 103, an outer crimping sleeve 2, and a first horizontal section 201 , the first flaring section 202, the second horizontal section 203, the outer limiting convex ring 204, the first sawtooth 205, the welding metal ring 3, the metal ring body 301, the annular step 302, the hole 303, the rib 304, the end Injection molded part 4, lock ring 5, lock ring body 501, inner limiting convex ring 502, inner thread 503, outer crimping sleeve 2 6, horizontal section 601, flared section 602, outer thread section 603, second sawtooth 604 and The second composite pipe 7.
  • connection assembly 1 arranged at the end of the first composite pipe 1
  • connection assembly 2 arranged at the end of the second composite pipe 2 and used for fixing between the connection assembly 1 and the connection assembly 2 Attached lock ring 5.
  • Both the first composite pipe 1 and the second composite pipe 2 adopt a three-layer steel wire mesh reinforced composite pipe structure, including an inner layer 101, a steel wire layer 102 and an outer layer 103; the connecting ends of the first composite pipe 1 and the second composite pipe 2 are taken out in advance Respective inner and outer layers, so that the exposed section of the steel wire layer is formed at the ends of the first composite pipe 1 and the second composite pipe 2;
  • Connecting assembly one includes a welding metal ring 3 arranged on the exposed section of the steel wire layer of the first composite pipe 1, an end injection molded part 4 coated on the exposed section of the steel wire layer of the first composite pipe 1, and an end part 4 arranged on the exposed section of the first composite pipe 1.
  • the connection assembly 2 includes a welding metal ring 3 arranged on the exposed section of the steel wire layer of the second composite pipe 2, an end injection molded part 4 coated on the exposed section of the steel wire layer of the second composite pipe 2, and an end part 4 arranged on the exposed section of the second composite pipe 2.
  • the welded metal ring 3 includes a metal ring body 301, an annular step 302 and a hole 303.
  • the annular step 302 is arranged at the two ends of the metal ring body 301, and a group of reinforcing ribs 304 are arranged circumferentially between the annular steps 302 for Supporting and connecting the two ends can bear the effect of large axial force; the holes 303 are evenly distributed along the circumference of the metal ring body 301, and the plastic fills these holes when the end is injected to increase the friction between the welded metal ring and the injection molding, and the resistance Axial force, the overall strength of the connection is improved.
  • the outer crimping sleeve one 2 includes a first horizontal section 201, a first flaring section 202 and a second horizontal section 203, one end of the first flaring section 201 is connected to the first horizontal section 201, and the other end is connected to the second horizontal section 203 , and the diameter of the second horizontal section 203 is larger than that of the first horizontal section 201, and the inner wall of the first horizontal section 201 is provided with a plurality of first serrations 205, and the closing force is applied by the mold of the crimping machine to make the outer diameter of the crimping sleeve smaller, In this way, the connection between the outer crimping sleeve and the outer wall of the pipe is realized, and its tooth shape is embedded in the outer layer of the pipe to increase friction; the end of the second horizontal section 203 away from the first flaring section 202 is provided with an outer limit extending outward. bit raised ring 204 .
  • the outer crimping sleeve cooperates with
  • the outer crimping sleeve 2 6 includes a horizontal section 601, a flaring section 602 and an external thread section 603. One end of the flaring section 602 is connected to the horizontal section 601, and the other end is connected to the external thread section 603, and the diameter of the external thread section 603 is larger than that of the horizontal section. 601, the inner wall of the horizontal section 601 is provided with several second serrations 604.
  • the side part of the injection molded part 4 at the end of the connection assembly 1 is flush with the end of the outer crimping sleeve 1 2, and the bottom of the injection molded part 4 at the end of the connection assembly 1 is flush with the inner layer 101 of the first composite pipe 1, and the connection assembly
  • the top of the injection molded part 4 at the end of one is filled between the outer crimping sleeve one 2 and the first composite pipe 1; the side of the injection molded part 4 at the end of the connecting component two is flush with the end of the crimping sleeve two 6, and the connecting component two
  • the bottom of the end injection molded part 4 is flush with the inner layer 101 of the second composite pipe 2, and the top of the end injection molded part 4 of the connection assembly two is filled between the outer crimping sleeve two 6 and the second composite pipe 2.
  • Injection molding at the end is to fill the middle gap by injection molding after the metal ring is welded on the pipe and the sleeve is crimped,
  • the lock ring 5 includes a lock ring body 501, one end of the lock ring body 501 is provided with an inwardly extending inner limit protrusion ring 502, the inside of the lock ring body 501 is provided with an internal thread 503, and the lock ring 5 is inserted into the outer crimping sleeve-2 , the inner limit protruding ring 502 and the outer limit protruding ring 204 limit fit, and the internal thread 503 is screwed with the external thread segment 603, thereby realizing the connection of the first and second outer crimping sleeves.
  • a method for manufacturing a high-pressure connection joint of a steel mesh reinforced composite pipe the specific steps are as follows:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

一种钢丝网增强复合管高压连接接头及其制造方法，所述钢丝网增强复合管高压连接接头包括设置在第一复合管端部的连接组件一、设置在第二复合管端部的连接组件二及用于连接组件一与连接组件二之间固定连接的锁环；所述连接组件一包括设置在第一复合管的钢丝层外露段上的焊接金属环、包覆于第一复合管的钢丝层外露段上的端部注塑件及设置在第一复合管的外层上的外扣压套筒一；所述连接组件二包括设置在第二复合管的钢丝层外露段上的焊接金属环、包覆于第二复合管的钢丝层外露段上的端部注塑件及设置在第二复合管的外层上的外扣压套筒二。该高压连接接头通过设置焊接金属环，并与钢丝增强层焊接，同时对焊接金属环所在位置进行端部注塑相较现有连接方式大大提高了连接的承压能力。

Description

一种钢丝网增强复合管高压连接接头及其制造方法 技术领域
本发明涉及复合管连接技术领域，具体涉及一种钢丝网增强复合管高压连接接头。
背景技术
钢丝网增强复合管是在聚乙烯管的基础上研发出的复合管道产品，是以高强度钢丝左右螺旋缠绕成型的网状骨架为增强层，可应用于中高压工业领域。但是由于管道连接技术的限制，导致钢丝网增强复合管大多应用于低压管道领域。到目前为止钢丝网骨架聚乙烯复合管的连接方式主要是电熔连接和金属扣压两种方式，而且管道泄漏失效大多在连接处。复合管不同于实壁管主要在于复合管有钢丝增强层，钢丝和塑料的弹性模量相差几乎200倍，复合管中约70％的载荷由钢丝承担，而电熔连接仅仅是复合管的外层与管件进行连接，是塑料之间的粘结，承压范围较低。金属扣压连接虽然连接强度较为可靠，但是管件制造成本较高，且金属扣压连接会造成管道系统在连接处缩径，通径减少，从而造成管道系统流量达不到管道原先要求。
总而言之，钢丝网增强复合管不论是电熔管件连接，还是金属扣压连接，都没有把管材中的钢丝进行有效连接，导致复合管的耐压优势发挥不出来。
发明内容
针对现有技术中存在的问题，本发明提供了设计合理、连接强度高、成本低、施工连接便捷的一种钢丝网增强复合管高压连接接头及其制造方法。
本发明的技术方案如下：
一种钢丝网增强复合管高压连接接头，包括设置在第一复合管端部的连接组件一、设置在第二复合管端部的连接组件二及用于连接组件一与连接组件二之间固定连接的锁环；所述第一复合管及第二复合管连接端分别设置钢丝层外露段；所述连接组件一包括设置在第一复合管的钢丝层外露段上的焊接金属环、包覆于第一复合管的钢丝层外露段上的端部注塑件及设置在第一复合管的外层上的外扣压套筒一；所述连接组件二包括设置在第二复合管的钢丝层外露段上的焊接金属环、包覆于第二复合管的钢丝层外露段上的端部注塑件及设置在第二复合管的外层上的外扣压套筒二。
进一步的，所述焊接金属环包括金属环本体、环状台阶及孔洞，所述环状台阶设置在金属环本体两端部位置处，所述环状台阶之间沿周向设有一组加强筋，所述孔洞沿金属环本体周向均布。
进一步的，所述外扣压套筒一包括第一水平段、第一扩口段及第二水平段，所述第 一扩口段一端与第一水平段相连，所述第一扩口段的另一端与第二水平段相连，且第二水平段直径大于第一水平段直径，所述第一水平段内壁上设有若干道第一锯齿，所述第二水平段远离第一扩口段的一端设有向外延伸的外限位凸环。
进一步的，所述外扣压套筒二包括水平段、扩口段及外螺纹段，所述扩口段一端与水平段相连，所述扩口段的另一端与外螺纹段相连，且外螺纹段直径大于水平段直径，所述水平段内壁上设有若干道第二锯齿。
进一步的，所述连接组件一的端部注塑件侧部与外扣压套筒一端部平齐，所述连接组件一的端部注塑件底部与第一复合管的内层齐平，所述连接组件一的端部注塑件顶部填充在外扣压套筒一与第一复合管之间。
进一步的，所述连接组件二的端部注塑件侧部与外扣压套筒二端部平齐，所述连接组件二的端部注塑件底部与第二复合管的内层齐平，所述连接组件二的端部注塑件顶部填充在外扣压套筒二与第二复合管之间。
进一步的，所述锁环包括锁环本体，所述锁环本体一端设有向内延伸的内限位凸环，所述锁环本体内部设有内螺纹。
一种钢丝网增强复合管高压连接接头的制造方法，包括如下步骤：
1)将第一复合管和第二复合管的端部分别用削皮机削去外层和内层，仅露出钢丝层，钢丝层外露长度为20-100mm；
2)将焊接金属环分别放置到位，采用点焊的方式，将外露的钢丝层与焊接金属环焊接在一起，实现硬连接；
3)将外扣压套筒一和外扣压套筒二分别套入第一复合管端部和第二复合管端部，所述外扣压套筒一和外扣压套筒二的端面要高出对应的焊接金属环端面，分别扣压外扣压套筒一和外扣压套筒二；
4)将准备注塑的第一复合管端部和第二复合管进行预热，温度为100-250℃，避免二次注塑造成脱层；
5)将预热后的第一复合管端部和第二复合管进行端部注塑，冷却成型；
6)将第一复合管端部和第二复合管上外扣压套筒一、二对齐，通过锁环拧紧。
本发明的有益效果是：本发明的高压连接接头通过设置焊接金属环，并与钢丝增强层焊接，同时对焊接金属环所在位置进行端部注塑相较现有连接方式大大提高了连接的承压能力。本发明接头，将钢丝进行很好的约束，既解决耐压强度的问题，又不会造成缩径。
附图说明
图1为本发明的整体三维结构示意图；
图2为本发明的内部结构示意图；
图3为本发明的外扣压套筒一结构示意图；
图4为本发明的焊接金属环结构示意图；
图5为本发明的外扣压套筒二结构示意图；
图6为本发明的锁环结构示意图；
图中：1、第一复合管；101、内层；102、钢丝层；103、外层；2、外扣压套筒一；201、第一水平段；202、第一扩口段；203、第二水平段；204、外限位凸环；205、第一锯齿；3、焊接金属环；301、金属环本体；302、环状台阶；303、孔洞；304、加强筋；4、端部注塑件；5、锁环；501、锁环本体；502、内限位凸环；503、内螺纹；6、外扣压套筒二；601、水平段；602、扩口段；603、外螺纹段；604、第二锯齿；7、第二复合管。
具体实施方式
以下结合说明书附图，对本发明作进一步描述。
如图1-6所示，一种钢丝网增强复合管高压连接接头，包括第一复合管1、内层101、钢丝层102、外层103、外扣压套筒一2、第一水平段201、第一扩口段202、第二水平段203、外限位凸环204、第一锯齿205、焊接金属环3、金属环本体301、环状台阶302、孔洞303、加强筋304、端部注塑件4、锁环5、锁环本体501、内限位凸环502、内螺纹503、外扣压套筒二6、水平段601、扩口段602、外螺纹段603、第二锯齿604及第二复合管7。
实施例：
钢丝网增强复合管高压连接接头，包括设置在第一复合管1端部的连接组件一、设置在第二复合管2端部的连接组件二及用于连接组件一与连接组件二之间固定连接的锁环5。
第一复合管1及第二复合管2均采用三层钢丝网增强复合管结构，包括内层101、钢丝层102及外层103；第一复合管1及第二复合管2连接端预先取出各自的内外层，这样在第一复合管1及第二复合管2端部形成钢丝层外露段；
连接组件一包括设置在第一复合管1的钢丝层外露段上的焊接金属环3、包覆于第一复合管1的钢丝层外露段上的端部注塑件4及设置在第一复合管1的外层103上的外扣压套筒一2。
连接组件二包括设置在第二复合管2的钢丝层外露段上的焊接金属环3、包覆于第二复合管2的钢丝层外露段上的端部注塑件4及设置在第二复合管2的外层103上的外扣压套 筒二6。
焊接金属环3包括金属环本体301、环状台阶302及孔洞303，环状台阶302设置在金属环本体301两端部位置处，环状台阶302之间沿周向设有一组加强筋304，用以支撑连接两端面，能起到承受较大轴向力的作用；孔洞303沿金属环本体301周向均布，端部注塑时塑料填充完这些孔洞，用以增加焊接金属环与注塑的摩擦力、抗轴向力，整体提高连接的强度。
外扣压套筒一2包括第一水平段201、第一扩口段202及第二水平段203，第一扩口段201一端与第一水平段201相连，另一端与第二水平段203相连，且第二水平段203直径大于第一水平段201，第一水平段201内壁上设有若干道第一锯齿205，通过扣压机的模具施加收口力，将外扣压套筒外径扣小，以此实现外扣压套筒与管材外壁的连接，其齿型嵌入管材外层，用以增大摩擦力；第二水平段203远离第一扩口段202的一端设有向外延伸的外限位凸环204。外扣压套筒配合焊接金属环实现了复合管增强层以及外层的约束，能提供非常可靠的抗轴向力强度。
外扣压套筒二6包括水平段601、扩口段602及外螺纹段603，扩口段602一端与水平段601相连，另一端与外螺纹段603相连，且外螺纹段603直径大于水平段601，水平段601内壁上设有若干道第二锯齿604。
连接组件一的端部注塑件4侧部与外扣压套筒一2端部平齐，所述连接组件一的端部注塑件4底部与第一复合管1的内层101齐平，连接组件一的端部注塑件4顶部填充在外扣压套筒一2与第一复合管1之间；连接组件二的端部注塑件4侧部与外扣压套筒二6端部平齐，连接组件二的端部注塑件4底部与第二复合管2的内层101齐平，连接组件二的端部注塑件4顶部填充在外扣压套筒二6与第二复合管2之间。端部注塑，是在管材焊接好金属环以及扣压好套筒后，注塑填充中间间隙，能起到力的过渡。
锁环5包括锁环本体501，锁环本体501一端设有向内延伸的内限位凸环502，锁环本体501内部设有内螺纹503，锁环5套入外扣压套筒一2中，其内限位凸环502与外限位凸环204限位配合，内螺纹503与外螺纹段603螺接，从而实现了外扣压套筒一、二的连接。
钢丝网增强复合管高压连接接头的制造方法，具体步骤如下：
1)先将第一、第二复合管的端部用削皮机削去外层和内层，仅露出钢丝层，露出长度为20-100mm；
2)将焊接金属环分别放置到位，采用点焊的方式，将钢丝层与焊接金属环焊接在一起，实 现硬连接；
3)将事先套入第一、第二复合管端部的外扣压套筒一、二分别放置到位，外扣压套筒一、二端面要高出对应的焊接金属环端面，便于注塑；放置好后分别扣压好外扣压套筒一、二，扣压量根据管材壁厚以及耐压工况确定；
4)将准备注塑的第一、第二复合管先进行预热，温度为100-250℃，避免二次注塑造成脱层；
5)将预热好的第一、第二复合管进行端部注塑操作(端部注塑过程是通过配套的对应模具使复合管端部形成密封腔进行注塑成型)，冷却成型即可，即完成了管材连接结构的制造；
6)连接时，只需将第一、第二复合管上外扣压套筒一、二对齐，通过锁环拧紧即可。
上述实施例只是本发明的较佳实施例，并不是对本发明技术方案的限制，只要是不经过创造性劳动即可在上述实施例的基础上实现的技术方案，均应视为落入本发明专利的权利保护范围内。

Claims (8)

  1. 一种钢丝网增强复合管高压连接接头，其特征在于，包括设置在第一复合管(1)端部的连接组件一、设置在第二复合管(2)端部的连接组件二及用于连接组件一与连接组件二之间固定连接的锁环(5)；所述第一复合管(1)及第二复合管(2)连接端分别设置钢丝层外露段；所述连接组件一包括设置在第一复合管(1)的钢丝层外露段上的焊接金属环(3)、包覆于第一复合管(1)的钢丝层外露段上的端部注塑件(4)及设置在第一复合管(1)的外层(103)上的外扣压套筒一(2)；所述连接组件二包括设置在第二复合管(2)的钢丝层外露段上的焊接金属环(3)、包覆于第二复合管(2)的钢丝层外露段上的端部注塑件(4)及设置在第二复合管(2)的外层(103)上的外扣压套筒二(6)。
  2. 根据权利要求1所述的一种钢丝网增强复合管高压连接接头，其特征在于，所述焊接金属环(3)包括金属环本体(301)、环状台阶(302)及孔洞(303)，所述环状台阶(302)设置在金属环本体(301)两端部位置处，所述环状台阶(302)之间沿周向设有一组加强筋(304)，所述孔洞(303)沿金属环本体(301)周向均布。
  3. 根据权利要求1所述的一种钢丝网增强复合管高压连接接头，其特征在于，所述外扣压套筒一(2)包括第一水平段(201)、第一扩口段(202)及第二水平段(203)，所述第一扩口段(201)一端与第一水平段(201)相连，所述第一扩口段(201)的另一端与第二水平段(203)相连，且第二水平段(203)直径大于第一水平段(201)直径，所述第一水平段(201)内壁上设有若干道第一锯齿(205)，所述第二水平段(203)远离第一扩口段(202)的一端设有向外延伸的外限位凸环(204)。
  4. 根据权利要求1所述的一种钢丝网增强复合管高压连接接头，其特征在于，所述外扣压套筒二(6)包括水平段(601)、扩口段(602)及外螺纹段(603)，所述扩口段(602)一端与水平段(601)相连，所述扩口段(602)的另一端与外螺纹段(603)相连，且外螺纹段(603)直径大于水平段(601)直径，所述水平段(601)内壁上设有若干道第二锯齿(604)。
  5. 根据权利要求1所述的一种钢丝网增强复合管高压连接接头，其特征在于，所述连接组件一的端部注塑件(4)侧部与外扣压套筒一(2)端部平齐，所述连接组件一的端部注塑件(4)底部与第一复合管(1)的内层(101)齐平，所述连接组件一的端部注塑件(4)顶部填充在外扣压套筒一(2)与第一复合管(1)之间。
  6. 根据权利要求1所述的一种钢丝网增强复合管高压连接接头，其特征在于，所述连接组件二的端部注塑件(4)侧部与外扣压套筒二(6)端部平齐，所述连接组件二的端部注塑件(4)底部与第二复合管(2)的内层(101)齐平，所述连接组件二的端部注塑件(4)顶部 填充在外扣压套筒二(6)与第二复合管(2)之间。
  7. 根据权利要求1所述的一种钢丝网增强复合管高压连接接头，其特征在于，所述锁环(5)包括锁环本体(501)，所述锁环本体(501)一端设有向内延伸的内限位凸环(502)，所述锁环本体(501)内部设有内螺纹(503)。
  8. 根据权利要求1-7任一所述的一种钢丝网增强复合管高压连接接头的制造方法，其特征在于，包括如下步骤：
    1)将第一复合管和第二复合管的端部分别用削皮机削去外层和内层，仅露出钢丝层，钢丝层外露长度为20-100mm；
    2)将焊接金属环分别放置到位，采用点焊的方式，将外露的钢丝层与焊接金属环焊接在一起，实现硬连接；
    3)将外扣压套筒一(2)和外扣压套筒二(6)分别套入第一复合管(1)端部和第二复合管(2)端部，所述外扣压套筒一(2)和外扣压套筒二(6)的端面要高出对应的焊接金属环端面，分别扣压外扣压套筒一(2)和外扣压套筒二(6)；
    4)将准备注塑的第一复合管(1)端部和第二复合管(2)进行预热，温度为100-250℃，避免二次注塑造成脱层；
    5)将预热后的第一复合管(1)端部和第二复合管(2)进行端部注塑，冷却成型；
    6)将第一复合管(1)端部和第二复合管(2)上外扣压套筒一、二对齐，通过锁环拧紧。
PCT/CN2021/137808 2021-10-29 2021-12-14 一种钢丝网增强复合管高压连接接头及其制造方法 WO2023070869A1 (zh)

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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN114962809B (zh) * 2022-05-25 2024-04-09 临海伟星新型建材有限公司 一种中高压塑料复合管全通径连接结构及其连接方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09108624A (ja) * 1995-10-20 1997-04-28 Furukawa Electric Co Ltd:The 金属管接続部の防食保護方法
CN202195205U (zh) * 2011-08-10 2012-04-18 文登鸿通管材有限公司 一种拉挤复合管材的连接结构
CN102720903A (zh) * 2012-06-09 2012-10-10 山东东宏管业有限公司 一种钢丝网骨架塑料复合管连接方法及其所使用的连接件
CN103470913A (zh) * 2013-07-05 2013-12-25 周立超 金属玻璃钢内衬橡塑海底管线的连接结构及制作连接方法
CN104295817A (zh) * 2014-09-05 2015-01-21 山东东宏管业有限公司 一种钢丝网骨架聚乙烯复合管的连接结构及连接方法
CN107477281A (zh) * 2017-09-16 2017-12-15 中国海洋大学 一种海洋纤维增强复合管用双限制连接系统
CN211667336U (zh) * 2020-02-24 2020-10-13 山东东宏管业股份有限公司 一种整体内撑式全金属包覆防脱连接结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4564245B2 (ja) * 2003-07-25 2010-10-20 新日本製鐵株式会社 溶接金属の低温割れ性に優れた超高強度溶接継手及び高強度溶接鋼管の製造方法
JP5881055B2 (ja) * 2011-11-09 2016-03-09 国立大学法人大阪大学 溶接方法および溶接継手
CN202612888U (zh) * 2012-05-08 2012-12-19 成都川盛塑胶有限公司 一种新型钢丝网骨架塑料复合管
CN102818091A (zh) * 2012-08-10 2012-12-12 浙江大学 用于中高压复合管连接的增强件外置电熔管件及焊接方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09108624A (ja) * 1995-10-20 1997-04-28 Furukawa Electric Co Ltd:The 金属管接続部の防食保護方法
CN202195205U (zh) * 2011-08-10 2012-04-18 文登鸿通管材有限公司 一种拉挤复合管材的连接结构
CN102720903A (zh) * 2012-06-09 2012-10-10 山东东宏管业有限公司 一种钢丝网骨架塑料复合管连接方法及其所使用的连接件
CN103470913A (zh) * 2013-07-05 2013-12-25 周立超 金属玻璃钢内衬橡塑海底管线的连接结构及制作连接方法
CN104295817A (zh) * 2014-09-05 2015-01-21 山东东宏管业有限公司 一种钢丝网骨架聚乙烯复合管的连接结构及连接方法
CN107477281A (zh) * 2017-09-16 2017-12-15 中国海洋大学 一种海洋纤维增强复合管用双限制连接系统
CN211667336U (zh) * 2020-02-24 2020-10-13 山东东宏管业股份有限公司 一种整体内撑式全金属包覆防脱连接结构

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