CN102359697A - Full corrosion-resistant connection structure of steel lining plastic composite pipeline - Google Patents

Full corrosion-resistant connection structure of steel lining plastic composite pipeline Download PDF

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Publication number
CN102359697A
CN102359697A CN2011103351203A CN201110335120A CN102359697A CN 102359697 A CN102359697 A CN 102359697A CN 2011103351203 A CN2011103351203 A CN 2011103351203A CN 201110335120 A CN201110335120 A CN 201110335120A CN 102359697 A CN102359697 A CN 102359697A
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China
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steel
pipe
lined
outer
plastic
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CN2011103351203A
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Chinese (zh)
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吴景春
周健
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华汇建设集团有限公司
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Priority to CN2011103351203A priority Critical patent/CN102359697A/en
Publication of CN102359697A publication Critical patent/CN102359697A/en

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Abstract

The invention discloses a full corrosion-resistant connection structure of a steel lining plastic composite pipeline, and belongs to the technical field of connection of the steel lining plastic composite pipeline. The structure comprises a corrosion-resistant ring sleeved on a non-meshing section of an external thread of a steel outer layer, a steel lining plastic composite pipe fitting consisting of a steel outer ring part and a plastic inner ring part, and a composite pipe consisting of the steel outer layer with the external thread, and a plastic inner layer, wherein the external thread consists of a meshing section and the non-meshing section; an annular cavity of which the inner wall is provided with an internal thread section is formed between the steel outer ring part and the plastic inner ring part; the pipe is in threaded connection with the pipe fitting; a solid hot melt adhesive is arranged in the annular cavity; when an alternating magnetic field is formed at the periphery of the joint of the pipe fitting and the pipe, the solid hot melt adhesive is in thread engagement with the steel outer ring part and in sealed connection with the end faces of the steel outer layer and the plastic inner layer; and the corrosion-resistant ring is in sealed connection with the non-meshing section of the pipe. After the scheme is adopted, the problem that the threads of the pipe and the pipe fitting are easily corroded and rusted is solved, and a full corrosion-resistant threaded connection effect is achieved.

Description

钢衬塑复合管道全防腐连接结构 Corrosion Protection steel lined composite pipe connecting structure

【技术领域】 TECHNICAL FIELD

[0001] 本发明涉及一种管道连接结构,尤其是指一种用于供水、供气、热力等系统的钢衬塑管子与钢衬塑管件之间的全防腐连接结构,属于钢衬塑复合管道连接技术领域。 [0001] The present invention relates to a pipe connecting structure, particularly to a connection structure between a full corrosion protection of steel tubes lined with plastic-lined steel pipe one kind of water, gas, heat, and other systems for belonging steel lined composite BACKGROUND pipe connection.

【背景技术】 【Background technique】

[0002] 传统的管子、管件多是铸铁件,其中,管件车制有内螺纹和置于管件内的橡胶密封垫片,管子端部则具有可与管件螺纹连接的外螺纹,其优点是连接方式简单,管子、管件锈蚀损裂后可以更换,但是铸铁管子本体、铸铁管件本体易生锈不耐用,因此逐渐被螺纹连接的钢衬塑复合管道取代,钢衬塑复合管道的管件亦内置有橡胶密封垫片,然现有的钢衬塑复合管道其缺点是当螺纹拧过位时则会使橡胶密封垫片受损,以及管子螺纹、管件螺纹存在易遭受流体侵蚀的不足,而当螺纹未拧到位时,则同样亦会使管子螺纹、管件螺纹被流体腐蚀,影响水质。 [0002] The conventional tube fittings mostly cast iron, wherein the tube car system has an internal thread and placed in a rubber gasket within the tubular member, the tube end portion is having an external thread can be connected to the pipe threads, the advantage that the connection simple manner, the tube, after the tube corrosion damage crack can be replaced, but the cast iron pipe body, cast iron pipe body rust is not durable, and therefore gradually replaced steel lined composite pipe threaded connection, lined composite pipe steel pipe is also built rubber gasket, then a conventional steel lined composite pipe which will cause the drawback that when damaged when the rubber seal is threaded through the bit, and a threaded pipe, a threaded fittings deficient subject to erosion fluid, and when the thread when not screwed in place, the same tube will also threaded, threaded fittings are corrosive fluids, affect water quality.

[0003] 有鉴于此,现有的钢衬塑复合管道连接结构,实有改进必要。 [0003] In view of this, the conventional steel lined composite pipe connecting structure, there is a need to improve. 【发明内容】 [SUMMARY]

[0004] 本发明要解决的问题和提出的技术任务是克服现有钢衬塑管子螺纹和钢衬塑管件螺纹易被流体腐蚀的缺陷,提供一种钢衬塑复合管道全防腐连接结构。 [0004] Problems to be solved by the present invention and proposed technical task is to overcome the disadvantages of conventional plastic-lined steel tube and a steel lined screw threaded tubular fluid susceptible to corrosion, to provide a composite lined steel duct is full antisepsis connecting structure.

[0005] 为解决上述技术问题,本发明提供如下技术方案: [0005] To solve the above problems, the present invention provides the following technical solutions:

[0006] 钢衬塑复合管道全防腐连接结构,包括由钢质外环部、塑料内环部组成的钢衬塑管件和由钢质外层、塑料内层组成的钢衬塑管子,钢质外层具有外螺纹,该外螺纹由啮合段和非啮合段组成,钢质外环部与塑料内环部之间形成环形腔,环形腔所对应的钢质外环部内壁具有内螺纹段,钢质外层外螺纹的啮合段与钢质外环部的内螺纹段螺纹连接,其改进点在于:还包括套置于钢质外层外螺纹的非啮合段的防腐环,所述环形腔内置有固态热熔胶,在钢衬塑管件的内螺纹段和钢衬塑管子的外螺纹所在的外环周形成交变磁场时,所述固态热熔胶便形成与钢质外环部螺纹啮合的齿牙状结构,且该齿牙状固态热熔胶均与钢衬塑管子的钢质外层端面、塑料内层端面电磁熔接密封,所述防腐环与钢衬塑管子外螺纹的非啮合段电磁熔接密封。 [0006] Corrosion Protection steel lined composite pipe connection structure, comprising a steel lined pipe and an outer layer of a steel tube lined steel, plastic, an inner layer portion of a steel outer ring, the inner ring portion composed of plastic, steel an outer layer having an external thread, the external thread engaged by the engaging portions and non-segments, annular chamber formed between the steel and the plastic inner portion of the outer ring portion, an inner wall of the steel outer annular chamber portion having a corresponding internal thread segment, external threaded section of the outer engagement with threaded steel inner threaded section of the outer ring portion of the steel, the improvement in that: further comprising a sleeve disposed outside the ring of steel corrosion layer of the non-engaging thread segment, said annular chamber hot melt adhesive containing the solid state, the outer periphery of the male screw thread segment and the steel tube lined steel lined pipe where the alternating magnetic field is formed, the hot melt adhesive will form a solid steel outer ring and a threaded portion engaging teeth-like structure, and the non-tooth shaped teeth are solid hot melt adhesive layer with the outer end surface of the steel lined steel pipe, the inner end surface of the electromagnetic welding plastic sealing ring and the preservative steel lined pipe threads electromagnetic frit sealing engagement section.

[0007] 上述塑料内环部的外端缘位于固态热熔胶的外侧,且位于钢质外环部的外端缘的内侧。 [0007] The outer edge of the plastic inner portion located outside the solid hot melt adhesive, and is located inside the outer edge portion of the steel outer ring.

[0008] 塑料内环部的外端缘位于固态热熔胶的外侧,可使得伸入环形腔内的塑料内层与环形腔之间的间隙在固态热熔胶熔融时实现良好的密封,从而将环形腔与管道中的流体彻底隔绝,杜绝了位于环形腔内的钢衬塑管子的啮合段及钢塑复合管件的内螺纹段与流体的接触机会。 [0008] The solid hotmelt is located outside of the outer edge portion of the plastic inner ring, so that the gap may extend into the annular cavity between the inner layer and the plastic annular chamber to achieve a good seal when melting solid hot melt adhesive, whereby the annular chamber and the fluid conduit completely cut off, to eliminate the chance of contact with the inner threaded section of the fluid plastic composite pipe section and the engaging member is positioned in the annular cavity lined steel pipe.

[0009] 上述固态热熔胶的内侧所在的环形腔底部置有热固性橡胶垫片。 [0009] The bottom of the annular chamber is located inside the solid hotmelt opposed thermosetting rubber gasket.

[0010] 此设置可实现更换钢衬塑管件或钢衬塑管子,通过给固态热熔胶短暂加热熔融, 并快速退旋钢衬塑管子,以完成钢衬塑管件与钢衬塑管子的分离,往钢衬塑管件的环形腔内重新放置固态热熔胶并使钢衬塑管件与钢衬塑管子再次螺纹连接后,可以再次对固态热熔胶加热实施重新熔接密封作业。 [0010] This setting may be implemented to replace steel lined pipe or plastic-lined steel pipe, by hot melt adhesive heated briefly to melt the solid, plastic-lined steel and quickly screwed-off tube, in order to complete the separation of plastic-lined steel pipe lined with a steel tube after the annular cavity to the plastic-lined steel pipe and reposition the solid hot melt plastic-lined steel pipe lined with steel tubing screwed again, the solid hot melt adhesive may be again re-welded heat sealing operation embodiment.

[0011] 与现有技术相比,本发明具有如下优点和有益效果: [0011] Compared with the prior art, the present invention has the following advantages and benefits:

[0012] 通过交变磁场的作用使钢衬塑管件的钢质外环部内螺纹段及钢衬塑管子的外螺纹迅速发热,所产生的热量使固态热熔胶熔化,这使得钢衬塑管件的内螺纹段的尾牙、钢衬塑管子端面被固态热熔胶完全封堵,并与钢衬塑管件、钢衬塑管子所构成的流体通道中的流体形成隔绝而不被流体所腐蚀,而且还降低了钢衬塑管件与钢衬塑管子的螺纹连接要求,不再出现旋接过位损伤热固性橡胶垫片的现象,也不会因拧不到位侵蚀连接螺纹;由于钢衬塑管子外螺纹的非啮合段熔接了防腐环,形成了钢衬塑管子外螺纹的该非啮合段的良好密封,从而将外界的腐蚀介质与非啮合段隔离,避免钢衬塑管子的非啮合段被腐蚀,达到钢衬塑管件与钢衬塑管子全防腐螺纹连接的效果。 [0012] lined steel pipe by the action of an alternating magnetic field in the steel outer ring and the outer thread of the threaded section lined steel tube quickly heat, the generated heat melts the solid hot melt adhesive, which makes the steel lined pipe Beano internal thread segments, steel lined tube end closure is completely solid hot melt adhesive, and lined with steel pipe, steel lined pipe fluid passage formed in fluid forms without being isolated from the corrosive fluid, but also reduces the plastic-lined steel pipe member connected to the threaded steel pipe lined in claim spin took place thermoset rubber gasket damage phenomena no longer occur, nor is screwed in place due to corrosion of the threads; because the outer steel lined pipe fused non-threaded engaging portions of the corrosion barrier ring, a good seal is formed non-engaging portions of the outer steel lined pipe threads, so that the corrosive medium outside the non-engaging portions isolated to avoid non-engaging portions lined steel pipe corrosion , to steel lined with steel pipe lined pipe full of antiseptic effect screwing.

[0013] 用于供水管道时,钢衬塑管件与钢衬塑管子采用本申请技术全防腐连接所形成的管道由于具有卫生的经久不被锈蚀的管道螺丝接口,因此杜绝了接口锈水的发生,减少了管道供水二次污染的机会。 [0013] When used for water supply pipes, steel lined with plastic-lined steel pipe using the pipe conduit full preservation techniques of this application formed by connecting the pipe because of hygienic durable Screwed connections are not corroded, and therefore prevent the occurrence of rust water interface , reducing the chance of piped water supply secondary pollution.

【附图说明】 BRIEF DESCRIPTION

[0014] 图1是本发明的钢衬塑管件为弯头的结构剖面图; [0014] FIG. 1 is a plastic-lined steel pipe of the present invention is a cross-sectional view of the structure of the elbow;

[0015] 图2是钢衬塑管件与钢衬塑管子螺纹连接及在连接处外周设置电磁加热装置并在电磁感应加热下实现热熔密封的连接结构剖面图(其中,环形腔内叠置有固态热熔胶、 热固性橡胶垫片); [0015] FIG. 2 is a plastic-lined steel pipe lined with steel pipe and a threaded connection means disposed on the outer periphery of electromagnetic heating of the connector and a cross-sectional structure of FIG achieve melt-tight connection at the electromagnetic induction heating (wherein superposed annular cavity solid hot melt adhesive, thermoset rubber gasket);

[0016] 图3是钢衬塑管件与钢衬塑管子螺纹连接及在连接处外周设置电磁加热装置并在电磁感应加热下实现热熔密封的连接结构剖面图(其中,环形腔内仅置有固态热熔胶)。 [0016] FIG. 3 is a tubular steel lined with plastic-lined steel pipe and a threaded connection means disposed on the outer periphery of electromagnetic heating of the connector and a cross-sectional structure of FIG achieve melt-tight connection at the electromagnetic induction heating (which have opposed annular cavity only solid hot melt adhesive).

[0017] 下面结合附图就本发明作进一步详细说明。 [0017] The following will further detail the present invention is described in conjunction with the accompanying drawings.

【具体实施方式】 【Detailed ways】

[0018] 如图3所示,钢衬塑复合管道全防腐连接结构,主要由钢衬塑管件1、钢衬塑管子2、防腐环5和固态热熔胶3组成,钢衬塑管件1由钢质外环部11和塑料内环部12复合形成的一整体件,钢质外环部11始于其端部、沿内壁加工了内螺纹段111,钢质外环部11与塑料内环部12合围形成环形腔10,钢衬塑管子2则是由钢质外层21和塑料内层22复合形成的一整体件,钢质外层21始于其端部、沿外壁加工了一段外螺纹L,形成外螺纹L后的钢衬塑管子2的口径与环形腔10的口径相配,该外螺纹L由较长的啮合段Ll和较短的非啮合段L2组成,钢衬塑管子2的啮合段Ll与钢衬塑管件1钢质外环部11的内螺纹段111 螺纹连接,结合图1所示,钢衬塑管件1为一弯头形式,其具有塑料内环部12、两段均带有内螺纹段的钢质外环部和二个环形腔(图中仅示意性的示出了一个环形腔10、一段内螺纹段111 [0018] 3, full lined steel corrosion composite pipe connecting structure, mainly composed of a steel lined pipe, plastic-lined steel tube 2, ring 5 and the solid corrosion hot melt adhesive composition 3, a steel lined pipe 1 steel outer portion 11 begins its end 11 an integral member, the steel outer ring portion and a plastic inner portion 12 formed of a composite, the processing along the inner wall 111, outer ring portion 11 and the steel inside the plastic inner thread segments section 12 cooperatively define an annular chamber 10, a unitary member 21 begins its end steel steel lined outer tube 2 is formed by a steel outer layer 21 and inner layer 22 of composite plastic, along the outer wall of the processing section of the outer L thread, the tube is formed of steel lined externally threaded aperture diameter L 2 of the annular chamber 10 is matched, the external thread engaging portions L of the longer and shorter non-Ll L2 composed of engaging portions, the steel-lined tube 2 Ll engagement section steel lined with a steel tubular member internally threaded outer portion 111 of the threaded section 11, in conjunction with FIG. 1 is a bend in the form of plastic-lined steel pipe member 1, an inner ring having a plastic portion 12, two steel sections each having an outer ring portion and two internally threaded annular chamber segments (only schematically shown an annular chamber 10, within a threaded section 111 ),因此这二段内螺纹段均可以分别螺纹连接钢衬塑管子,进一步,根据需要,本发明的钢衬塑管件1还可以诸如三通、四通、水龙头等管件。 ), So that the two-stage can be respectively threaded section screwed plastic-lined steel pipe, and further, if necessary, steel lined pipe 1 according to the present invention may also be such as a three-way, four-way, taps and other fittings.

[0019] 本案的改进点是在环形腔10底部内置有固态热熔胶3,以及在钢衬塑管子2的非啮合段L2密封连接有防腐环5,固态热熔胶3受热后具有既粘接金属又可粘接塑料的特点, 可市购。 [0019] The improvement is the case at the bottom of the annular chamber 10 containing the solid state hot melt adhesive 3, and a seal in the non-plastic-lined steel pipe engaging portions L2 2 is connected to the corrosion barrier ring 5, both having adhesive rear heated solid hot melt adhesive 3 adhesive bonding characteristics of the metal but also of plastic, are commercially available. 当钢衬塑管件1和钢衬塑管子2完成螺纹连接,以及在钢衬塑管件1的内螺纹段111和钢衬塑管子2的外螺纹L所在的外环周形成交变磁场时,固态热熔胶3便形成与钢质外环部11螺纹尾牙啮合的齿牙状结构,所形成的齿牙状固态热熔胶3分别与外螺纹L所在的钢质外层21端面、塑料内层22端面电磁熔接密封,齿牙状固态热熔胶3与环形腔10底部电磁熔接,同时防腐环5将钢衬塑管子2外螺纹L的非啮合段L2电磁熔接密封。 When the steel lined steel lined pipe 1 and the tube 2 to complete a threaded connection, and forming an alternating magnetic field in the outer periphery of the inner threaded section steel lined pipe 111 and a steel lined pipe where the external thread when L 2, solid 21 end surface, the hot melt adhesive 3 will form a solid hot melt adhesive with the tooth-shaped teeth-like structure steel outer portion 11 engaging the threaded end banquet, 3 are formed with an externally threaded steel plastic layer L where end surface sealing layer 22, electromagnetic welding, hot melt solid tooth shaped bottom 3 and the electromagnetic welding annular chamber 10, while the ring 5 anticorrosive steel lined externally threaded tube 2 L non-engaging portions solenoid L2 fusion seal.

[0020] 其中,塑料内环部12的外端缘位于此固态热熔胶3外侧,以及位于钢质外环部11 的外端缘内侧。 [0020] wherein the plastic inner portion of the outer edge 12 is located outside this solid hot melt adhesive 3, and located at the outer end of the inner edge 11 of the steel outer ring portion. 增加了环形腔10的深度,此举可延长环形腔10的轴向密封长度,可使得在固态热熔胶3熔融时将伸入环形腔10内的塑料内层22与环形腔10之间的间隙实现良好的密封防腐。 Increases the depth of the annular chamber 10, this extended axial length of the annular chamber 10 is sealed, in the solid state may be such that the molten hot melt adhesive 3 will extend into the annular space 10 between the inner plastics layer 22 and the annular chamber 10 achieve a good seal gap corrosion.

[0021] 另外,为进一步提高钢衬塑管子2的非啮合段L2的防腐效果,可以在套置防腐环5前,先在该非啮合段L2缠绕若干层密封带7 (比如生料带)。 [0021] Further, in order to further improve the corrosion effect of non-engagement section 2 of steel lined pipe L2, can be placed in the sleeve 5 before the corrosion barrier ring, the first sealing tape 7 is wound in several layers (such as Teflon tape) in this non-engaging portions L2 .

[0022] 钢衬塑复合管道全防腐连接的具体操作过程如下:首先往环形腔10内放置固态热熔胶3,令固态热熔胶3位于环形腔10底部附近,继而把钢衬塑管件1与钢衬塑管子2 螺纹连接在一起,接着把交变电流发生器(图中未示出)与电磁加热装置6连接,然后将电磁加热装置6套置于钢衬塑管件1的内螺纹段111和钢衬塑管子2的外螺纹L所在的外环周,启动交变电流发生器,令电磁加热装置6产生交变磁场,当交变磁场的交变磁力线穿过钢衬塑管件1的钢质外环部11、钢衬塑管子2的钢质外层21时产生无数涡流,钢质外环部11、钢质外层21便迅速发热,熔化后的固态热熔胶3分别与钢衬塑管子2的钢质外层21端面、与塑料内层22端面、与环形腔10底部热熔密封连接,环形腔10与啮合段Ll所在的塑料内层22之间的配合间隙亦被固态热熔胶3熔接密封,以及固态热熔胶3形成齿状并与 [0022] Specific operation lined steel Corrosion Protection composite pipe connection is as follows: First, the annular chamber 10 is placed into the solid hot melt adhesive 3, 3 so that the solid hot melt near the bottom of the annular chamber 10, and then the steel lined pipe 1 2 is connected to the threaded steel lined pipe together, followed by the alternating current generator (not shown) and electromagnetic heating device 6 is connected, and then the inside thread section 6 sets the electromagnetic steel lined pipe is placed in a heating apparatus 2 and the external thread 111 L of the tube where the steel lined outer circumference, starting alternating current generator, so that electromagnetic heating means 6 generates an alternating magnetic field, alternating magnetic field when alternating magnetic field lines passing through the plastic-lined steel pipe 1 numerous vortex, steel outer ring portion 11, will quickly heat the steel layer 21, the melted solid hot melt adhesive 3, respectively steel, steel tube 11 lined steel outer steel outer ring portion 21 2 lined steel pipe 21 the outer end face 2, end surface 22 and an inner layer of plastic, the annular chamber 10 connected to the bottom of the hot-melt sealing, the plastic inner annular chamber 10 and located with the engaging portions Ll 22 was also a gap between the solid 3 welded hot melt seal, hot-melt adhesives and a solid tooth 3 is formed with 质外环部11螺纹尾牙啮合密封,同时防腐环5内壁与钢衬塑管子2外螺纹L的非啮合段L2 电磁熔密封连接,以及防腐环5的右侧面与钢衬塑管件1左端面电磁熔密封连接。 Outer mass portion 11 engages the threaded end banquet seal while corrosion barrier ring 5 and the inner wall steel lined externally threaded tube 2 L non-fusible sealing engagement segment L2 connecting the solenoid, and the right side surface of the corrosion barrier ring steel lined with a left end of the tube 5 electromagnetic surface melt sealed connection.

[0023] 作为对上述技术方案的进一步补充和完善,本发明还包括以下附加技术特征,以便在具体实施时根据需要选用。 [0023] As a further complement and improve the above technical solution, the present invention further comprises the following additional features, according to the need to use the specific embodiments.

[0024] 如图2所示,固态热熔胶3的右侧所在的环形腔10底部置有热固性橡胶垫片4,此时的固态热熔胶3不置于环形腔10底部。 [0024] As shown in FIG 2, the right side of the annular chamber 3 where the solid hot melt adhesive 10 of thermosetting rubber gasket facing the bottom 4, then 3 solid hot melt adhesive 10 is not placed in the bottom of the annular chamber.

[0025] 需要更换钢衬塑管件1或钢衬塑管子2时,在固态热熔胶3对应的钢衬塑管件1 外周套置电磁加热装置6,通过给固态热熔胶3短暂加热熔融,并快速退旋钢衬塑管子2,以完成钢衬塑管件1与钢衬塑管子2的分离,为钢衬塑管件1与钢衬塑管子2重新防腐密封熔接作准备。 [0025] The need to replace the steel lined with plastic or plastic-lined steel pipe 1 when the tube 2, the outer periphery of the solid hot melt adhesive 1 3 plastic-lined steel pipe corresponding sleeved electromagnetic heating device 6, by a solid hot melt adhesive heated briefly melted 3, and quickly screwed-off plastic-lined steel tube 2 to complete the separation of plastic-lined steel pipe member 1 and the tube 2 of steel lined, 2 re-corrosion steel lined steel pipe member 1 and the tube was sealed with plastic weld preparation.

Claims (3)

1. 一种钢衬塑复合管道全防腐连接结构,包括由钢质外环部、塑料内环部组成的钢衬塑管件和由钢质外层、塑料内层组成的钢衬塑管子,钢质外层具有外螺纹,该外螺纹由啮合段和非啮合段组成,钢质外环部与塑料内环部之间形成环形腔,环形腔所对应的钢质外环部内壁具有内螺纹段,钢质外层外螺纹的啮合段与钢质外环部的内螺纹段螺纹连接,其特征在于:还包括套置于钢质外层外螺纹的非啮合段的防腐环,所述环形腔内置有固态热熔胶,在钢衬塑管件的内螺纹段和钢衬塑管子的外螺纹所在的外环周形成交变磁场时,所述固态热熔胶便形成与钢质外环部螺纹啮合的齿牙状结构,且该齿牙状固态热熔胶均与钢衬塑管子的钢质外层端面、塑料内层端面电磁熔接密封,所述防腐环与钢衬塑管子外螺纹的非啮合段电磁熔接密封。 1. The duct is lined composite steel Corrosion Protection connecting structure, comprising a steel lined pipe and an outer layer of a steel tube lined steel, plastic, an inner layer portion of a steel outer ring, the inner ring portion composed of plastic, steel mass layer having an external thread, the external thread engaged by the engaging portions and non-segments, annular chamber formed between the steel and the plastic inner portion of the outer ring portion, an inner wall of the steel outer annular portion having an inner cavity corresponding threaded section , the outer section of the outer steel threaded engagement with the threaded portion of the threaded section of the outer ring of steel, characterized by: further comprising an outer sleeve disposed anticorrosive steel outer ring of the non-threaded engaging portions, said annular chamber hot melt adhesive containing the solid state, the outer periphery of the male screw thread segment and the steel tube lined steel lined pipe where the alternating magnetic field is formed, the hot melt adhesive will form a solid steel outer ring and a threaded portion engaging teeth-like structure, and the non-tooth shaped teeth are solid hot melt adhesive layer with the outer end surface of the steel lined steel pipe, the inner end surface of the electromagnetic welding plastic sealing ring and the preservative steel lined pipe threads electromagnetic frit sealing engagement section.
2.根据权利要求1所述的钢衬塑复合管道全防腐连接结构,其特征在于:所述塑料内环部的外端缘位于固态热熔胶的外侧,且位于钢质外环部的外端缘的内侧。 2. The steel lined composite pipe connection of claim 1 Corrosion Protection structure according to claim, wherein: said outer edge portion located outside the plastic inner solid hot melt adhesive, and the outer ring on the outer portion of the steel the inner edge.
3.根据权利要求1或2所述的钢衬塑复合管道全防腐连接结构,其特征在于:所述固态热熔胶的内侧所在的环形腔底部置有热固性橡胶垫片。 The steel lined composite pipe 1 or the whole connection structure as claimed in claim preservative, wherein: the bottom of the annular chamber facing the inside of the solid hot melt adhesive where the thermosetting rubber gasket.
CN2011103351203A 2011-10-18 2011-10-18 Full corrosion-resistant connection structure of steel lining plastic composite pipeline CN102359697A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964383A (en) * 2014-05-05 2014-08-06 福建省邵武市永晶化工有限公司 Plastic-lined equipment and method for producing hydrofluoric acid through plastic-lined equipment
CN105465644A (en) * 2014-09-28 2016-04-06 嘉兴山蒲照明电器有限公司 Lamp tube of LED straight-tube lamp and lamp cap connecting method
CN106195721A (en) * 2014-09-28 2016-12-07 嘉兴山蒲照明电器有限公司 LED (Light Emitting Diode) fluorescent lamp
US20170290119A1 (en) 2015-03-10 2017-10-05 Jiaxing Super Lighting Electric Appliance Co., Ltd Led tube lamp
US9964263B2 (en) 2014-09-28 2018-05-08 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10021742B2 (en) 2014-09-28 2018-07-10 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10024503B2 (en) 2014-09-28 2018-07-17 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10047932B2 (en) 2015-04-02 2018-08-14 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube light with LED leadframes
US10082250B2 (en) 2014-12-05 2018-09-25 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10161569B2 (en) 2015-09-02 2018-12-25 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10190749B2 (en) 2015-04-02 2019-01-29 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10240725B2 (en) 2015-03-10 2019-03-26 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10288272B2 (en) 2016-03-17 2019-05-14 Zhejiang Super Lighting Electric Appliance Co., Ltd Curved LED tubular lamp
US10299333B2 (en) 2014-09-28 2019-05-21 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2663777Y (en) * 2003-11-28 2004-12-15 武汉煤气集团阿波罗实业有限公司 Hot melt reinforced antiseptic steel-plastic adapter
US6863313B1 (en) * 1998-02-25 2005-03-08 Grant Prideco, L.P. Threaded connection for internally clad pipe
CN201037578Y (en) * 2007-04-06 2008-03-19 安源管道实业有限公司 Composite steel plastic pipe adapter joint
CN201284896Y (en) * 2008-11-08 2009-08-05 浙江金洲管道科技股份有限公司 Steel-plastic composite pipe connection structure and connector
CN201992252U (en) * 2011-05-09 2011-09-28 徐焕松 Steel plastic composite pipeline electromagnetic welding connection structure
CN202252628U (en) * 2011-10-18 2012-05-30 华汇建设集团有限公司 Full anti-corrosion connecting structure for steel lined plastic compound pipeline

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6863313B1 (en) * 1998-02-25 2005-03-08 Grant Prideco, L.P. Threaded connection for internally clad pipe
CN2663777Y (en) * 2003-11-28 2004-12-15 武汉煤气集团阿波罗实业有限公司 Hot melt reinforced antiseptic steel-plastic adapter
CN201037578Y (en) * 2007-04-06 2008-03-19 安源管道实业有限公司 Composite steel plastic pipe adapter joint
CN201284896Y (en) * 2008-11-08 2009-08-05 浙江金洲管道科技股份有限公司 Steel-plastic composite pipe connection structure and connector
CN201992252U (en) * 2011-05-09 2011-09-28 徐焕松 Steel plastic composite pipeline electromagnetic welding connection structure
CN202252628U (en) * 2011-10-18 2012-05-30 华汇建设集团有限公司 Full anti-corrosion connecting structure for steel lined plastic compound pipeline

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN103964383B (en) * 2014-05-05 2015-12-30 福建省邵武市永晶化工有限公司 Lining apparatus and method for producing one kind of hydrofluoric acid
CN106195721B (en) * 2014-09-28 2019-03-01 嘉兴山蒲照明电器有限公司 LED daylight lamp
CN105465643A (en) * 2014-09-28 2016-04-06 嘉兴山蒲照明电器有限公司 LED straight-tube lamp
CN106195721A (en) * 2014-09-28 2016-12-07 嘉兴山蒲照明电器有限公司 LED (Light Emitting Diode) fluorescent lamp
US10426003B2 (en) 2014-09-28 2019-09-24 Jiazing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US9964263B2 (en) 2014-09-28 2018-05-08 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10021742B2 (en) 2014-09-28 2018-07-10 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10024503B2 (en) 2014-09-28 2018-07-17 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
CN105465643B (en) * 2014-09-28 2019-08-23 嘉兴山蒲照明电器有限公司 LED straight lamp
US10342078B2 (en) 2014-09-28 2019-07-02 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10295125B2 (en) 2014-09-28 2019-05-21 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
CN105465644A (en) * 2014-09-28 2016-04-06 嘉兴山蒲照明电器有限公司 Lamp tube of LED straight-tube lamp and lamp cap connecting method
US10299333B2 (en) 2014-09-28 2019-05-21 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
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