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CN114838211A - A kind of lightweight FRP water pipe and its processing technology - Google Patents

A kind of lightweight FRP water pipe and its processing technology Download PDF

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Publication number
CN114838211A
CN114838211A CN202210668867.9A CN202210668867A CN114838211A CN 114838211 A CN114838211 A CN 114838211A CN 202210668867 A CN202210668867 A CN 202210668867A CN 114838211 A CN114838211 A CN 114838211A
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China
Prior art keywords
water delivery
pipe
resin
degrees
straight
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CN202210668867.9A
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Chinese (zh)
Inventor
方海
陈忱
马晓忠
周叮
张友明
韩娟
张恒
陈祥喜
冯俊
周文领
徐双
王肖淳
潘存玺
王薇荣
曹妍
朱志豪
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Jiangsu Flood And Draught Prevention And Emergency Rescue Center
Nanjing Tech University
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Jiangsu Flood And Draught Prevention And Emergency Rescue Center
Nanjing Tech University
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Priority to CN202210668867.9A priority Critical patent/CN114838211A/en
Publication of CN114838211A publication Critical patent/CN114838211A/en
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
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe 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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing
    • F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
    • 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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
    • F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
    • F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
    • F16L3/2056—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs the axis of at least one spring being oblique or perpendicular to the direction of the movement of 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

本发明公开了一种轻量化FRP输水管及其加工工艺，所述输水管包括输水直管和输水弯管，所述输水直管和输水弯管通过FRP法兰连接或FRP抱箍连接，所述输水直管和所述输水弯管均为树脂预浸渍纤维增强复合材料缠绕丝缠绕而成，所述输水直管上阵列设有多个缓冲机构，多个所述缓冲机构均可拆卸连接于管道；加工工艺为以钢材为芯模进行缠绕，待树脂预浸渍纤维增强复合材料固化成型后，取出构件芯模；组装。本发明以树脂预浸渍纤维增强复合材料缠绕丝多次整体成型，极大提高各不同角度缠绕层之间的界面性能并提升输水整体协同作用，显著增强输水管抗弯刚度。

Figure 202210668867

The invention discloses a lightweight FRP water delivery pipe and a processing technology thereof. The water delivery pipe comprises a water delivery straight pipe and a water delivery elbow, and the water delivery straight pipe and the water delivery elbow are connected by FRP flanges or FRP embraces. The straight water delivery pipe and the curved water delivery pipe are both made of resin pre-impregnated fiber reinforced composite material winding wire, and the The buffer mechanism can be detachably connected to the pipeline; the processing technology is to use steel as the core mold for winding, and after the resin pre-impregnated fiber reinforced composite material is cured and formed, the component core mold is taken out; assembly. The invention uses resin pre-impregnated fiber reinforced composite material winding wire for multiple integral molding, which greatly improves the interface performance between winding layers at different angles, improves the overall synergy of water delivery, and significantly enhances the bending stiffness of the water delivery pipe.

Figure 202210668867

Description

一种轻量化FRP输水管及其加工工艺A kind of lightweight FRP water pipe and its processing technology

技术领域technical field

本发明属于复合材料结构领域，具体地说是一种轻量化FRP输水管及其加工工艺。The invention belongs to the field of composite material structures, in particular to a lightweight FRP water delivery pipe and a processing technology thereof.

背景技术Background technique

拉挤型材由于其特有的成型工艺及明显的各项异性特点，使得其横向受力性能较弱，在外荷载作用下，容易沿拉挤方向发生局部屈曲或劈裂破坏，从而不能充分发挥复合材料的强度。纤维增强复合材料缠绕管由于其特有的成型工艺及明显的各项异性特点，相比大幅减少传统铁质输水构件大幅减轻重量，纤维增强复合材料缠绕管比传统涂塑软管能承受更大的水压力。纤维缠绕成型工艺制备输水构件，现有FRP输水弯头大多采用同一缠绕角度，在水动力荷载下协同作用能力差；FRP管道在连接处所受剪力较大，在中心处所受弯矩较大；同时输水管直直接放置在水槽或者管道内，在输水过程中，输水管受到的振动较强，导致管体的使用寿命短。Due to its unique forming process and obvious anisotropy characteristics, pultruded profiles make their lateral mechanical properties weak. Under the action of external loads, local buckling or splitting damage is easy to occur along the pultrusion direction, so that composite materials cannot be fully utilized. Strength of. Due to its unique molding process and obvious anisotropic characteristics, the fiber reinforced composite winding pipe can greatly reduce the weight compared with the traditional iron water conveying components, and the fiber reinforced composite winding pipe can withstand more than traditional plastic-coated hoses. water pressure. Filament winding molding process is used to prepare water conveying components. Most of the existing FRP water conveying elbows use the same winding angle, which has poor synergy under hydrodynamic load; FRP pipes are subjected to large shear force at the connection and bending at the center. At the same time, the water delivery pipe is directly placed in the water tank or pipeline. During the water delivery process, the water delivery pipe is subjected to strong vibration, resulting in a short service life of the pipe body.

发明内容SUMMARY OF THE INVENTION

发明目的：针对上述现有技术，提出一种轻量化FRP输水管及其加工工艺。Purpose of the invention: In view of the above-mentioned prior art, a lightweight FRP water delivery pipe and its processing technology are proposed.

技术方案：一种轻量化FRP输水管，所述输水管包括输水直管和输水弯管，所述输水直管和输水弯管通过FRP法兰连接或FRP抱箍连接，所述输水直管和所述输水弯管均为树脂预浸渍纤维增强复合材料缠绕丝缠绕而成，所述输水直管上阵列设有多个缓冲机构，多个所述缓冲机构均可拆卸连接于管道。Technical solution: a lightweight FRP water delivery pipe, the water delivery pipe includes a water delivery straight pipe and a water delivery elbow, and the water delivery straight pipe and the water delivery elbow are connected by FRP flanges or FRP hoops. The straight water delivery pipe and the water delivery elbow are both formed by winding filaments of resin pre-impregnated fiber reinforced composite materials. The straight water delivery pipe is provided with a plurality of buffer mechanisms in an array, and multiple buffer mechanisms can be disassembled. connected to the pipeline.

优选的，所述树脂预浸渍纤维增强复合材料为树脂预浸渍拉挤片材或树脂预浸渍纤维纱，所述树脂预浸渍纤维增强复合材料的树脂采用不饱和树酯、乙烯基树脂、环氧树脂或酚醛树脂；所述树脂预浸渍纤维纱采用单轴向、双轴向或多轴向的碳纤维、玻璃纤维、玄武岩纤维、芳纶纤维或者杂交纤维。Preferably, the resin pre-impregnated fiber reinforced composite material is a resin pre-impregnated pultruded sheet or resin pre-impregnated fiber yarn, and the resin of the resin pre-impregnated fiber reinforced composite material is unsaturated resin, vinyl resin, epoxy resin Resin or phenolic resin; the resin pre-impregnated fiber yarn adopts uniaxial, biaxial or multiaxial carbon fiber, glass fiber, basalt fiber, aramid fiber or hybrid fiber.

优选的，多个缓冲机构均包括外环，所述外环内壁上阵列分布有多个缓冲块，多个所述缓冲块内均设有弹簧，所述弹簧的一端设有滑板，所述滑板滑动连接于所述缓冲块内部，所述滑板的一端固定连接缓冲杆，所述缓冲杆的一端贯穿所述缓冲块且固定连接连接块，所述连接块连接于所述输水直管。Preferably, each of the plurality of buffer mechanisms includes an outer ring, a plurality of buffer blocks are distributed in an array on the inner wall of the outer ring, and a spring is arranged in each of the plurality of buffer blocks, and one end of the spring is provided with a sliding plate, and the sliding plate It is slidably connected inside the buffer block, one end of the sliding plate is fixedly connected to a buffer rod, one end of the buffer rod penetrates the buffer block and is fixedly connected to the connecting block, and the connecting block is connected to the water conveying straight pipe.

优选的，所述连接块的截面形状为圆形，与所述输水直管贴合连接，增大和所述输水直管的接触面积。Preferably, the cross-sectional shape of the connecting block is circular, and is connected with the straight water conveying pipe to increase the contact area with the straight water conveying pipe.

优选的，所述外环的外壁两侧对称设有安装板，两个所述安装板上均设有多个齿牙，所述管道的两侧设有固定板，所述固定板上同样设有齿牙，所述安装板和所述固定板咬合连接，所述安装板和所述固定板上还设有螺孔，所述安装板和所述固定板螺栓连接。Preferably, two sides of the outer wall of the outer ring are symmetrically provided with mounting plates, both of the mounting plates are provided with a plurality of teeth, and both sides of the pipe are provided with fixed plates, which are also provided with There are teeth, the mounting plate and the fixing plate are connected in an occlusal manner, the mounting plate and the fixing plate are also provided with screw holes, and the mounting plate and the fixing plate are connected by bolts.

一种轻量化FRP输水管的加工工艺，包括以下步骤：A processing technology for a lightweight FRP water delivery pipe, comprising the following steps:

1)以钢材为芯模进行缠绕，输水直管沿芯模长度方向手工螺旋式缠绕树脂预浸渍纤维增强复合材料，缠绕角度为15度，整体缠绕层数为2层，弯管沿钢模具长度方向手工螺旋式缠绕缠绕树脂预浸渍纤维增强复合材料，缠绕角度为15度，整体缠绕层数为2层。1) Winding with steel as the core mold, the straight water delivery pipe is manually spirally wound with resin pre-impregnated fiber reinforced composite material along the length of the core mold, the winding angle is 15 degrees, the overall number of winding layers is 2, and the curved pipe is along the steel mold. Length direction manual spiral winding winding resin pre-impregnated fiber reinforced composite material, the winding angle is 15 degrees, and the overall number of winding layers is 2 layers.

2)待树脂预浸渍纤维增强复合材料固化成型后，取出构件芯模；2) After the resin pre-impregnated fiber reinforced composite material is cured and formed, the component core mold is taken out;

3)将预制好的树脂预浸渍纤维增强复合材料法兰盘1和活套法兰3与输水直管以及输水弯管通过手糊工艺粘结，并将输水管用螺栓组装；或者将预制好的树脂预浸渍纤维增强复合材料抱箍4与输水直管以及输水弯管通过螺栓连接；3) Bond the prefabricated resin pre-impregnated fiber reinforced composite material flange 1 and looper flange 3 with the straight water pipe and the water pipe by hand lay-up process, and assemble the water pipe with bolts; or The prefabricated resin pre-impregnated fiber reinforced composite material hoop 4 is connected with the water delivery straight pipe and the water delivery elbow by bolts;

4)将预制好的缓冲机构通过胶接的方式连接在输水直管上，即将连接块胶接在输水直管。4) Connect the prefabricated buffer mechanism to the straight water pipe by gluing, that is, the connecting block is glued to the straight water pipe.

优选的，步骤1)中输水直管的缠绕面层沿芯模长度方向整体螺旋缠绕4层，每层缠绕面层的缠绕角度由内到外分别为75度，60度，45度和15度，输水弯管沿芯模方向整体螺旋缠绕4层，每层缠绕面层的缠绕角度由内到外分别为75度缠，60度，45和15度。Preferably, in step 1), the winding surface layer of the straight water conveying pipe is spirally wound in 4 layers along the length direction of the core mold, and the winding angles of each layer of the winding surface layer are respectively 75 degrees, 60 degrees, 45 degrees and 15 degrees from the inside to the outside. degrees, the water delivery elbow is spirally wound in 4 layers along the direction of the core mold, and the winding angles of each layer of the winding surface layer are 75 degrees, 60 degrees, 45 and 15 degrees respectively from the inside to the outside.

有益效果：Beneficial effects:

1)本发明以树脂预浸渍纤维增强复合材料缠绕丝多次整体成型，极大提高各不同角度缠绕层之间的界面性能并提升输水系统整体协同作用，显著增强输水系统抗弯刚度；可通过在同一缠绕面层缠绕不同角度纤维提升管道在水荷载下的承压能力，同时FRP法兰可替换为FRP抱箍连接实现快速拼接功能，用于排涝抢险极具优势。此外，FRP输水管解决了传统铁质输水系统重量大与易锈蚀难题。1) The present invention uses resin pre-impregnated fiber reinforced composite winding wire for multiple integral molding, which greatly improves the interface performance between the winding layers at different angles, improves the overall synergy of the water delivery system, and significantly enhances the flexural rigidity of the water delivery system; The pressure bearing capacity of the pipeline under water load can be improved by winding fibers of different angles on the same winding surface. At the same time, the FRP flange can be replaced by the FRP hoop connection to realize the quick splicing function, which is very advantageous for flood drainage and emergency rescue. In addition, the FRP water delivery pipe solves the problems of heavy weight and easy corrosion of the traditional iron water delivery system.

2)本发明通过输水直管外设置的多个缓冲机构能够大大降低输水时水流震动对输水管造成的损伤，增强水管的的使用寿命。2) The present invention can greatly reduce the damage to the water pipe caused by the vibration of the water flow during water delivery through the multiple buffer mechanisms arranged outside the straight water pipe, and enhance the service life of the water pipe.

3)管道和缓冲机构先咬合起来在进行固定，这样咬合的部分能够抵消部分横向的振动，相比于直接固定更加可靠。3) The pipe and the buffer mechanism are first engaged for fixing, so that the engaged part can offset part of the lateral vibration, which is more reliable than direct fixing.

附图说明Description of drawings

图1为本发明的输水管FRP法兰连接结构示意图；Fig. 1 is the schematic diagram of the FRP flange connection structure of the water delivery pipe of the present invention;

图2为本发明的输水管FRP抱箍连接结构示意图；Fig. 2 is the schematic diagram of the connection structure of the water pipe FRP hoop of the present invention;

图3为本发明的缓冲机构结构示意图；3 is a schematic structural diagram of the buffer mechanism of the present invention;

图4为本发明的缓冲块结构示意图；4 is a schematic structural diagram of a buffer block of the present invention;

图5为本发明的固定板以及安装板结构示意图。FIG. 5 is a schematic structural diagram of the fixing plate and the mounting plate of the present invention.

图中：输水直管1，输水弯管2，法兰3，抱箍4，缓冲机构5，外环51，缓冲块52，弹簧53，滑板54，缓冲杆55，连接块56，安装板57，固定板58。In the figure: water delivery straight pipe 1, water delivery elbow 2, flange 3, hoop 4, buffer mechanism 5, outer ring 51, buffer block 52, spring 53, slide plate 54, buffer rod 55, connecting block 56, installation plate 57, fixed plate 58.

具体实施方式Detailed ways

下面结合附图对本发明做更进一步的解释。The present invention will be further explained below in conjunction with the accompanying drawings.

一种轻量化FRP输水管，输水管包括输水直管1和输水弯管2，输水直管1和输水弯管2通过FRP法兰3连接或FRP抱箍4连接，输水直管1和输水弯管2均为树脂预浸渍纤维增强复合材料缠绕丝缠绕而成，输水直管1上阵列设有多个缓冲机构5，多个缓冲机构5均可拆卸连接于管道。A lightweight FRP water delivery pipe, the water delivery pipe comprises a water delivery straight pipe 1 and a water delivery elbow 2, and the water delivery straight pipe 1 and the water delivery elbow 2 are connected by a FRP flange 3 or a FRP hoop 4, and the water delivery is straight. The pipe 1 and the water delivery elbow 2 are both wound with resin pre-impregnated fiber reinforced composite materials. The straight water delivery pipe 1 is provided with a plurality of buffer mechanisms 5 in an array, and the plurality of buffer mechanisms 5 can be detachably connected to the pipeline.

树脂预浸渍纤维增强复合材料为树脂预浸渍拉挤片材或树脂预浸渍纤维纱，树脂预浸渍纤维增强复合材料的树脂采用不饱和树酯、乙烯基树脂、环氧树脂或酚醛树脂；树脂预浸渍纤维纱采用单轴向、双轴向或多轴向的碳纤维、玻璃纤维、玄武岩纤维、芳纶纤维或者杂交纤维。The resin pre-impregnated fiber reinforced composite material is resin pre-impregnated pultruded sheet or resin pre-impregnated fiber yarn, and the resin of the resin pre-impregnated fiber reinforced composite material is unsaturated resin, vinyl resin, epoxy resin or phenolic resin; The impregnated fiber yarn adopts uniaxial, biaxial or multiaxial carbon fiber, glass fiber, basalt fiber, aramid fiber or hybrid fiber.

多个缓冲机构均5包括外环51，外环51内壁上阵列分布有多个缓冲块52，多个缓冲块52内均设有弹簧53，弹簧53的一端设有滑板54，滑板54滑动连接于缓冲块52内部，滑板54的一端固定连接缓冲杆55，缓冲杆55的一端贯穿缓冲块52且固定连接连接块56，连接块56连接于输水直管1。Each of the plurality of buffer mechanisms 5 includes an outer ring 51 , a plurality of buffer blocks 52 are arranged in an array on the inner wall of the outer ring 51 , and a spring 53 is arranged in each of the plurality of buffer blocks 52 , and one end of the spring 53 is provided with a slide plate 54 , and the slide plate 54 is slidably connected. Inside the buffer block 52 , one end of the sliding plate 54 is fixedly connected to the buffer rod 55 .

优选的，连接块56的截面形状为圆形，与输水直管1贴合连接，增大和输水直管1的接触面积。Preferably, the cross-sectional shape of the connecting block 56 is circular, and is connected with the straight water conveying pipe 1 to increase the contact area with the straight water conveying pipe 1 .

优选的，外环51的外壁两侧对称设有安装板57，两个安装板57上均设有多个齿牙，管道的两侧设有固定板58，固定板58上同样设有齿牙，安装板57和固定板58咬合连接，安装板57和固定板58上还设有螺孔，安装板57和固定板58螺栓连接。Preferably, the two sides of the outer wall of the outer ring 51 are symmetrically provided with mounting plates 57, two mounting plates 57 are provided with a plurality of teeth, both sides of the pipeline are provided with fixed plates 58, and the fixed plates 58 are also provided with teeth , the mounting plate 57 and the fixing plate 58 are snap-connected, the mounting plate 57 and the fixing plate 58 are also provided with screw holes, and the mounting plate 57 and the fixing plate 58 are connected by bolts.

一种轻量化FRP输水管的加工工艺，包括以下步骤：A processing technology for a lightweight FRP water delivery pipe, comprising the following steps:

5)以钢材为芯模进行缠绕，输水直管1沿芯模长度方向手工螺旋式缠绕树脂预浸渍纤维增强复合材料，缠绕角度为15度，整体缠绕层数为2层，弯管沿钢模具长度方向手工螺旋式缠绕缠绕树脂预浸渍纤维增强复合材料，缠绕角度为15度，整体缠绕层数为2层。5) Winding with steel as the core mold, the straight water delivery pipe 1 is manually spirally wound with resin pre-impregnated fiber reinforced composite material along the length of the core mold, the winding angle is 15 degrees, the overall number of winding layers is 2, and the bent pipe is along the steel The resin pre-impregnated fiber reinforced composite material is manually spirally wound in the length direction of the mold, the winding angle is 15 degrees, and the number of overall winding layers is 2 layers.

6)待树脂预浸渍纤维增强复合材料固化成型后，取出构件芯模；6) After the resin pre-impregnated fiber reinforced composite material is cured and formed, the component core mold is taken out;

7)将预制好的树脂预浸渍纤维增强复合材料法兰盘、活套法兰3与输水直管1以及输水弯管2通过手糊工艺粘结，并将输水管用螺栓组装；或者将预制好的树脂预浸渍纤维增强复合材料抱箍4与输水直管1以及输水弯管2通过螺栓连接；7) Bond the prefabricated resin pre-impregnated fiber reinforced composite material flange, looper flange 3, and straight water delivery pipe 1 and water delivery elbow 2 by hand lay-up process, and assemble the water delivery pipe with bolts; or The prefabricated resin pre-impregnated fiber reinforced composite material hoop 4 is connected with the water delivery straight pipe 1 and the water delivery elbow 2 by bolts;

8)将预制好的缓冲机构通过胶接的方式连接在输水直管1上，即将连接块56胶接在输水直管1。8) The prefabricated buffer mechanism is connected to the straight water delivery pipe 1 by gluing, that is, the connecting block 56 is glued to the straight water delivery pipe 1 .

步骤1)中输水直管1的缠绕面层的缠绕方式还可以为沿芯模长度方向整体螺旋缠绕4层，每层缠绕面层的缠绕角度由内到外分别为75度，60度，45度和15度，输水弯管2沿芯模方向整体螺旋缠绕4层，每层缠绕面层的缠绕角度由内到外分别为75度缠，60度，45和15度。The winding mode of the winding surface layer of the water conveying straight pipe 1 in the step 1) can also be spirally wound 4 layers as a whole along the length direction of the core mold, and the winding angle of each layer of the winding surface layer is respectively 75 degrees and 60 degrees from the inside to the outside. 45 degrees and 15 degrees, the water delivery elbow 2 is spirally wound in 4 layers along the direction of the mandrel, and the winding angles of each layer of the winding surface layer are 75 degrees, 60 degrees, 45 and 15 degrees respectively from the inside to the outside.

工作原理：安装输水管时，首先将安装板57和固定板58贴合，此时安装板57和固定板58相互咬合，在受到振动时，咬合部分能够对横向力进行抵消，接着旋入螺栓将安装板57和固定板58固定，在进行输水时，输水管受到的震动经过连接块56传至弹簧53，弹簧53形变，对震动进行缓冲，对输水管进行保护。Working principle: When installing the water delivery pipe, first fit the mounting plate 57 and the fixing plate 58. At this time, the mounting plate 57 and the fixing plate 58 are engaged with each other. When subjected to vibration, the engaged part can offset the lateral force, and then screw in the bolts. The mounting plate 57 and the fixing plate 58 are fixed. During water delivery, the vibration received by the water delivery pipe is transmitted to the spring 53 through the connecting block 56, and the spring 53 deforms to buffer the vibration and protect the water delivery pipe.

以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (7)

1. The lightweight FRP water delivery pipe is characterized by comprising a water delivery straight pipe and a water delivery bent pipe, wherein the water delivery straight pipe and the water delivery bent pipe are connected through an FRP flange or an FRP hoop, the water delivery straight pipe and the water delivery bent pipe are formed by winding resin preimpregnated fiber reinforced composite material winding wires, a plurality of buffer mechanisms are arranged on the water delivery straight pipe in an array mode, and the plurality of buffer mechanisms can be detachably connected to a pipeline.
2. The lightweight FRP water pipe as claimed in claim 1, wherein the resin-preimpregnated fiber reinforced composite material is resin-preimpregnated pultrusion sheet or resin-preimpregnated fiber yarn, and the resin of the resin-preimpregnated fiber reinforced composite material adopts unsaturated resin, vinyl resin, epoxy resin or phenolic resin; the resin preimpregnated fiber yarn adopts single-axial, double-axial or multi-axial carbon fiber, glass fiber, basalt fiber, aramid fiber or hybrid fiber.
3. The light weight FRP water pipe as claimed in claim 1, wherein the plurality of buffer mechanisms each comprise an outer ring, a plurality of buffer blocks are distributed on an inner wall of the outer ring in an array manner, a spring is arranged in each of the plurality of buffer blocks, a sliding plate is arranged at one end of the spring and is slidably connected inside the buffer block, one end of the sliding plate is fixedly connected with a buffer rod, one end of the buffer rod penetrates through the buffer block and is fixedly connected with a connecting block, and the connecting block is connected with the straight water pipe.
4. The lightweight FRP water pipe as claimed in claim 3, wherein the cross-sectional shape of the connecting block is circular, and the connecting block is attached to the straight water pipe to increase the contact area with the straight water pipe.
5. The lightweight FRP water pipe as claimed in claim 4, wherein mounting plates are symmetrically arranged on both sides of the outer wall of the outer ring, a plurality of teeth are arranged on both of the mounting plates, fixing plates are arranged on both sides of the pipeline, the teeth are also arranged on the fixing plates, the mounting plates and the fixing plates are connected in a meshing manner, screw holes are further arranged on the mounting plates and the fixing plates, and the mounting plates and the fixing plates are connected through bolts.
6. A processing technology of a lightweight FRP water pipe is characterized by comprising the following steps:
1) use steel to twine as the mandrel, the manual spiral winding resin preimpregnation fibre reinforced composite of water delivery straight tube along mandrel length direction, the winding angle is 15 degrees, and the whole number of piles of twining is 2 layers, and the manual spiral winding of return bend along steel mould length direction twines resin preimpregnation fibre reinforced composite, and the winding angle is 15 degrees, and the whole number of piles of twining is 2 layers.
2) After the resin preimpregnated fiber reinforced composite material is cured and molded, taking out the component core mold;
3) bonding a prefabricated resin preimpregnated fiber reinforced composite material flange plate 1 and a loop flange 3 with a water delivery straight pipe and a water delivery bent pipe through a hand lay-up process, and assembling the water delivery pipe with bolts; or the prefabricated resin preimpregnated fiber reinforced composite material anchor ear 4 is connected with the water delivery straight pipe and the water delivery bent pipe through bolts;
4) the prefabricated buffer mechanism is connected to the water delivery straight pipe in a gluing mode, namely, the connecting block is glued to the water delivery straight pipe.
7. The processing technology of the light FRP water pipe as claimed in claim 6, wherein in step 1), the winding surface layer of the straight water pipe is spirally wound for 4 layers along the length direction of the core mold, the winding angle of each winding surface layer is 75 degrees, 60 degrees, 45 degrees and 15 degrees from inside to outside, the winding angle of the bent water pipe is spirally wound for 4 layers along the direction of the core mold, and the winding angle of each winding surface layer is 75 degrees, 60 degrees, 45 degrees and 15 degrees from inside to outside.
CN202210668867.9A 2022-06-14 2022-06-14 A kind of lightweight FRP water pipe and its processing technology Pending CN114838211A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900072A (en) * 1987-11-11 1990-02-13 Ameron, Inc. Fiber-reinforced pipe flange
JPH08290487A (en) * 1995-04-24 1996-11-05 Toray Ind Inc Manufacture of frp cylinder
KR200209551Y1 (en) * 2000-04-12 2001-01-15 원창공업주식회사 A fiber reinforced plastic pipe
JP2004169834A (en) * 2002-11-20 2004-06-17 Kurimoto Kasei Kogyo Kk Fiber reinforced resin pipe
CN103062532A (en) * 2011-10-23 2013-04-24 林锐志 Polyethylene plastic steel winding drain pipe clamping hoop
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CN217381991U (en) * 2022-06-14 2022-09-06 南京工业大学 Lightweight FRP raceway

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