Multilayer composite fluorine-lined hose

Abstract

The utility model provides a multi-layer composite fluorine-lined hose, which relates to the field of composite fluorine-lined hoses and comprises a composite fluorine-lined hose component, a lining layer, a barrier layer wrapped on the outer surface of the lining layer, a reinforcing layer arranged on the outer side of the barrier layer, a wear-resistant protective layer on the outermost side and a hose connecting component. Comprising a first connecting pipe and a second connecting pipe communicated with one end of the composite fluorine-lined hose assembly; through the mutual cooperation of the lining layer, the barrier layer, the reinforcing layer and the wear-resistant protective layer, the use strength of the fluorine-lined hose can be effectively improved, the spiral corrugated structure of the lining layer not only increases the turbulence degree of fluid flowing in the hose, but also enhances the flexibility and deformation resistance of the lining layer, and the service life of the fluorine-lined hose is prolonged. The internal threads on the inner wall of the pipe sleeve are meshed with the external threads on the surface of the second connecting pipe, connection of the two composite fluorine-lined hose assemblies is achieved, the threaded connection mode is easy to operate, connection is firm, mounting and dismounting are convenient, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of composite fluorine lining hose, concretely is a kind of multilayer composite fluorine lining hose. BACKGROUND

[0002] Composite fluorine lining hose is a kind of high-performance hose, mainly used for conveying corrosive medium, combines the corrosion resistance of fluorine material and the mechanical properties of other materials, and is widely used in chemical industry, petrochemical industry, pharmaceutical industry and food industry;

[0003] According to Chinese patent application No. 202320755248.3, a kind of high-temperature fluorine lining plastic pipe is disclosed, including outer tube and inner tube, the top of the both ends of outer tube is gouged with the gap, the bottom of the one side wall of two gaps is respectively movably inserted and connected with first cross bar and second cross bar, the one end of first cross bar is fixedly connected with connecting rod, the one end of connecting rod is fixedly connected with baffle, the other end of first cross bar is fixedly connected with rubber stick, the middle part of outer tube is sleeved with sleeve ring, by being provided with baffle, first cross bar, sleeve ring, bottom plate, bottom box, hose, water pipe, transparent pipe, color buoy and cover pipe, reduce the impact force suffered by the middle part of pipeline being collided by object, reduce the probability of collision of pipeline and other objects, guarantee the integrity of the structure of pipeline when transporting, reduce the influence of temperature on inner tube, reduce the probability of inner tube leakage, save time for pipeline repair, thereby reduce the difficulty of repair personnel to repair pipeline;

[0004] The prior art effectively solves the problems of easy structure damage and inconvenient maintenance of fluorine lining pipe, and has the advantages of improving the strength of fluorine lining pipe and facilitating maintenance, but in actual use, the fluorine lining hose is prone to rupture after being bent for many times, and it is relatively inconvenient to connect the pipeline, and leakage is prone to occur at the joint, thereby being not conducive to the use of fluorine lining hose.

[0005] Therefore, the utility model provides a kind of multilayer composite fluorine lining hose to solve the above problems. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model relates to a kind of multilayer composite fluorine-lined hose, including composite fluorine-lined hose assembly, including inner liner, barrier layer being wrapped in the outer surface of the inner liner, reinforcing layer being arranged in the outside of the barrier layer, and the outermost wear-resistant protective layer, hose connection assembly, including first connecting pipe, second connecting pipe being communicated with the one end of the composite fluorine-lined hose assembly, pipe sleeve being set in the surface of the first connecting pipe, internal thread being opened in the inner wall of the pipe sleeve, external thread being opened in the surface of the second connecting pipe, baffle ring being fixed in the one end of the first connecting pipe, and sealing ring for the sealing of junction, and first connecting pipe with the other end of the composite fluorine-lined hose assembly is communicated, for two the second connecting pipe of the composite fluorine-lined hose assembly is extended to the inner cavity of the pipe sleeve of another the composite fluorine-lined hose assembly when the composite fluorine-lined hose assembly is connected, and the internal thread in the inner wall of the pipe sleeve and the external thread on the surface of the second connecting pipe are engaged.

[0008] Further, in the utility model, the inner liner is made of polytetrafluoroethylene material, and the inner wall is in spiral corrugated structure, the corrugated depth is 0.5-1.2mm, the barrier layer is ethylene-vinyl alcohol copolymer barrier material.

[0009] Further, in the utility model, the reinforcing layer is woven by aramid fiber and stainless steel wire at 30°-45° staggered angle, and the weaving density is 12-18 meshes / cm 2 The wear-resistant protective layer is wear-resistant polymer covering, and is provided with cross-thread anti-skid lines, the line depth is 1.5-2.0mm, and the adjacent line spacing is 4-6mm.

[0010] Further, in the utility model, the first connecting pipe, the second connecting pipe and the pipe sleeve are all made of stainless steel material, the sealing ring is made of rubber material, and the sealing ring is embedded in the surface of the baffle ring.

[0011] Further, in the utility model, the baffle ring is located in the inner cavity of the pipe sleeve, and the one end of the first connecting pipe away from the composite fluorine-lined hose assembly extends to the inner cavity of the pipe sleeve and is fixedly connected with the baffle ring.

[0012] Beneficial effects, the utility model has the following beneficial effects:

[0013] The utility model can effectively improve the use strength of fluorine-lined hose through the mutual cooperation of inner liner, barrier layer, reinforcing layer and wear-resistant protective layer, the spiral corrugated structure of inner liner not only increases the turbulence degree when fluid flows in pipe, improves conveying efficiency, but also enhances the flexibility and anti-deformation ability of inner liner itself, the reinforcing layer has higher strength and impact resistance, can bear greater pressure and external force impact, the wear-resistant protective layer improves the wear resistance of hose, prolongs the service life of hose, thereby effectively solve the problem of insufficient strength and easy breaking of existing composite fluorine-lined hose.

[0014] The utility model discloses a pipe sleeve inner wall's internal thread and the second connecting pipe surface's external thread engagement realize two composite fluorine lined hose assemblies's connection, and the threaded connection mode is simple to operate, and the connection is firm, and it is convenient to install and dismount, has improved construction efficiency, simultaneously, threaded connection has certain leakproofness, can prevent medium leakage initially, and rubber sealing ring is embedded in the surface of the baffle ring and provides the seal to the connecting place, can effectively fill the clearance of the connecting part, prevents medium leakage, guarantees the leakproofness and reliability of connecting part, solves the problem that the existing composite fluorine lined hose connecting part is easy to leak. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the main view structure schematic diagram of the utility model;

[0016] Figure 2 It is the separation state structure schematic diagram of the utility model composite fluorine lined hose assembly and hose connecting assembly;

[0017] Figure 3 It is the side view cross section structure schematic diagram of the utility model composite fluorine lined hose assembly;

[0018] Figure 4 It is the splicing state structure schematic diagram of the utility model composite fluorine lined hose assembly.

[0019] In the drawing:

[0020] 100, composite fluorine lined hose assembly; 110, inner lining; 120, barrier layer; 130, reinforcing layer; 140, wear-resistant protective layer; 200, hose connecting assembly; 210, first connecting pipe; 220, second connecting pipe; 230, pipe sleeve; 240, internal thread; 250, external thread; 260, baffle ring; 270, sealing ring. DETAILED DESCRIPTION

[0021] In order to understand the technical content of the utility model more, specific embodiment is raised and the following is described with the accompanying drawings. In the present disclosure, aspects of the utility model are described with reference to the accompanying drawings, which show many embodiments of the description. The embodiments of the present disclosure are not necessarily defined in all aspects including the utility model. It should be understood that the above-mentioned various concepts and embodiments, and those concepts and embodiments described in more detail below can be implemented in any one of many ways, because the concepts and embodiments disclosed by the utility model are not limited to any implementation. In addition, some aspects of the utility model can be used alone, or used in any appropriate combination with other aspects of the utility model.

[0022] Embodiment 1

[0023] As Figures 1-4As shown, the first embodiment of the utility model provides a kind of multi-level composite fluorine-lined hose, including composite fluorine-lined hose assembly 100, including inner liner 110, barrier layer 120 being wrapped in the outer surface of inner liner 110, reinforcing layer 130 being arranged in the outside of barrier layer 120, and the outermost wear-resistant protective layer 140, hose connecting assembly 200, including first connecting pipe 210, second connecting pipe 220 being communicated with one end of composite fluorine-lined hose assembly 100, pipe sleeve 230 being set in the surface of first connecting pipe 210, internal thread 240 being opened in the inner wall of pipe sleeve 230, external thread 250 being opened in the surface of second connecting pipe 220, baffle ring 260 being fixed in one end of first connecting pipe 210, and sealing ring 270 for connecting seal, and first connecting pipe 210 is communicated with the other end of composite fluorine-lined hose assembly 100, for the connection of two composite fluorine-lined hose assemblies 100, located in the second connecting pipe 220 of one composite fluorine-lined hose assembly 100 extends to the inner cavity of pipe sleeve 230 of another composite fluorine-lined hose assembly 100, and the internal thread 240 on the inner wall of pipe sleeve 230 is engaged with the external thread 250 on the surface of second connecting pipe 220.

[0024] As Figures 1-4 As shown, the hose connecting assembly 200 is engaged by the internal thread 240 on the inner wall of pipe sleeve 230 and the external thread 250 on the surface of second connecting pipe 220, realizing the connection of two composite fluorine-lined hose assemblies 100, and the threaded connection is simple and direct, and only needs to be screwed into pipe sleeve 230 to complete the connection, greatly improving the convenience of connection, when first connecting pipe 210 and second connecting pipe 220 are connected through pipe sleeve 230, sealing ring 270 can fill the gap of the connection part to prevent medium leakage, baffle ring 260 is located in the inner cavity of pipe sleeve 230, the end of first connecting pipe 210 away from composite fluorine-lined hose assembly 100 extends to the inner cavity of pipe sleeve 230 and is fixedly connected with baffle ring 260, baffle ring 260 not only plays a positioning role to ensure the accuracy of connection, but also can cooperate with sealing ring 270 to achieve better sealing effect, further reducing the possibility of leakage, inner liner 110 is made of polytetrafluoroethylene material, and the inner wall is in spiral corrugated structure, with a corrugation depth of 0.5-1.2mm, which not only can increase the turbulence degree of fluid flowing in the pipe, but also helps to improve the mixing effect of fluid, barrier layer 120 adopts ethylene-vinyl alcohol copolymer barrier material, which can effectively prevent fluid in inner liner 110 from permeating outward, reinforcing layer 130 is woven by aramid fiber and stainless steel wire at an interlacing angle of 30°-45°, with a weaving density of 12-18 meshes / cm 2The woven structure of the combination of the two can enhance the overall strength and pressure resistance of the hose, prevent the hose from deforming or rupturing under high pressure, the wear-resistant protective layer 140 is covered with wear-resistant polymer and is provided with cross-thread anti-skid lines, the line depth is 1.5-2.0 mm, the adjacent line spacing is 4-6 mm, the wear-resistant polymer can protect the internal layers from external wear and scratch, prolong the service life of the hose, and the cross-thread anti-skid lines increase the friction force of the surface of the hose.

[0025] Embodiment 2

[0026] With reference to Figures 1-4 As the second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0027] In the embodiment, the inner liner 110 is made of polytetrafluoroethylene material, and the inner wall is in a spiral corrugated structure, the corrugated depth is 0.5-1.2 mm, and the barrier layer 120 is an ethylene-vinyl alcohol copolymer barrier material.

[0028] The reinforcing layer 130 is woven by aramid fiber and stainless steel wire at an interlacing angle of 30°-45°, and the weaving density is 12-18 meshes / cm 2 The wear-resistant protective layer 140 is covered with wear-resistant polymer and is provided with cross-thread anti-skid lines, the line depth is 1.5-2.0 mm, and the adjacent line spacing is 4-6 mm.

[0029] The first connecting pipe 210, the second connecting pipe 220 and the pipe sleeve 230 are all made of stainless steel material, and the sealing ring 270 is made of rubber material, and the sealing ring 270 is embedded on the surface of the retaining ring 260.

[0030] The retaining ring 260 is located in the inner cavity of the pipe sleeve 230, and the first connecting pipe 210 extends to the inner cavity of the pipe sleeve 230 and is fixedly connected with the retaining ring 260 away from the one end of the composite fluorine-lined hose assembly 100.

[0031] As Figures 1-4 shown, the reinforcing layer 130 is woven by aramid fiber and stainless steel wire at an interlacing angle of 30°-45°, and the weaving density is 12-18 meshes / cm 2The weaving method and density make the reinforcing layer 130 have good flexibility and high strength. The aramid fiber has the characteristics of high modulus and high strength, and the stainless steel wire increases the overall rigidity and anti-deformation ability. When the fluorine-lined hose is bent repeatedly, the reinforcing layer 130 can disperse stress and avoid stress concentration to cause structural rupture, thereby enhancing the durability of the hose under bending conditions. The wear-resistant protective layer 140 is covered with wear-resistant polymer and is provided with cross-thread anti-skid lines. The wear-resistant protective layer 140 not only can prevent the hose from being damaged due to friction with external objects during use, but also can buffer the impact force generated when bending to a certain extent. The design of the lines increases the flexibility of the wear-resistant protective layer 140, so that it can better adapt to shape changes when bending, further protect the internal structure, and reduce the risk of rupture. The first connecting pipe 210, the second connecting pipe 220 and the pipe sleeve 230 are all made of stainless steel material, which has good corrosion resistance and strength, can ensure that the connecting part is not corroded and damaged during long-term use, and improves the reliability and service life of the entire connecting assembly, thereby solving the problem that the connecting part of the existing composite fluorine-lined hose is damaged due to poor corrosion resistance of the material.

[0032] In use, the inner liner 110 is made of polytetrafluoroethylene material, and the inner wall thereof has a spiral corrugated structure with a corrugation depth of 0.5-1.2 mm. The corrugated structure not only can increase the turbulence degree of fluid flowing in the pipe, but also can help to improve the mixing effect of the fluid. The barrier layer 120 is made of ethylene-vinyl alcohol copolymer barrier material, which can effectively prevent the fluid in the inner liner 110 from permeating outward. The reinforcing layer 130 is woven by aramid fiber and stainless steel wire at an interlacing angle of 30°-45°, and the weaving density is 12-18 meshes / cm 2 . The combined weaving structure of the two can enhance the overall strength and pressure resistance of the hose to prevent the hose from deforming or rupturing under high pressure. The wear-resistant protective layer 140 is covered with wear-resistant polymer and is provided with cross-thread anti-skid lines. The line depth is 1.5-2.0 mm, and the distance between adjacent lines is 4-6 mm. The wear-resistant polymer can protect the internal layers from external wear and scratching, thereby prolonging the service life of the hose. The cross-thread anti-skid lines increase the friction force of the surface of the hose;

[0033] When two composite fluorine-lined hose assemblies 100 need to be connected, the second connecting pipe 220 of one composite fluorine-lined hose assembly 100 is extended into the inner cavity of the pipe sleeve 230 of the other composite fluorine-lined hose assembly 100, and then the pipe sleeve 230 is rotated to make the internal threads 240 on the inner wall of the pipe sleeve 230 engage with the external threads 250 on the surface of the second connecting pipe 220. As the threads are tightened, the second connecting pipe 220 gradually approaches the stop ring 260 and presses the sealing ring 270 embedded on the surface of the stop ring 260, thereby realizing the sealed connection of the two hoses.

[0034] The standard parts used in the application file can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, the control mode is automatically controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the application is mainly used to protect the mechanical device, so the control mode and circuit connection are not explained in detail.

[0035] Although the utility model has disclosed as above with preferable embodiment, it is not used to limit the utility model. Those who have ordinary knowledge in the technical field to which the utility model belongs can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the definition of the claims.

Claims

1. A multilayer fluoropolymer lined flexible hose, characterized by: The composite fluorine-lined hose assembly (100) comprises an inner liner (110), a barrier layer (120) wrapped outside the inner liner (110), a reinforcing layer (130) arranged outside the barrier layer (120), and an outermost wear-resistant protective layer (140). The hose connection assembly (200) comprises a first connecting pipe (210), a second connecting pipe (220) connected to one end of the composite fluorine-lined hose assembly (100), a pipe sleeve (230) sleeved on the surface of the first connecting pipe (210), an internal thread (240) formed on the inner wall of the pipe sleeve (230), an external thread (250) formed on the surface of the second connecting pipe (220), a stop ring (260) fixed to one end of the first connecting pipe (210), and a sealing ring (270) for sealing the connection. When two composite fluorine-lined hose assemblies (100) are connected, the second connecting pipe (220) of one composite fluorine-lined hose assembly (100) extends into the inner cavity of the pipe sleeve (230) of the other composite fluorine-lined hose assembly (100), and the internal thread (240) on the inner wall of the pipe sleeve (230) engages with the external thread (250) on the surface of the second connecting pipe (220). The inner liner (110) is made of polytetrafluoroethylene material, and the inner wall has a spiral corrugated structure with a corrugation depth of 0.5-1.2mm.

2. The multilayer fluoropolymer-lined flexible tube according to claim 1, wherein: The first connecting pipe (210), the second connecting pipe (220), and the pipe sleeve (230) are all made of stainless steel material, the sealing ring (270) is made of rubber material, and the sealing ring (270) is inlaid on the surface of the stop ring (260).

3. The multilayer fluoropolymer-lined flexible tube according to claim 1, wherein: The reinforcing layer (130) is woven by aramid fiber and stainless steel wire with 30°-45° stagger angle, and the weaving density is 12-18 meshes / cm 2 The wear-resistant protective layer (140) is a wear-resistant polymer covering, and is provided with cross-thread anti-skid lines with a line depth of 1.5-2.0 mm and a distance between adjacent lines of 4-6 mm.

4. The multilayer fluoropolymer-lined flexible tube according to claim 1, wherein: The stop ring (260) is located in the inner cavity of the pipe sleeve (230), and the first connecting pipe (210) extends into the inner cavity of the pipe sleeve (230) and is fixedly connected with the stop ring (260) away from the composite fluorine-lined hose assembly (100).

5. The multilayer fluoropolymer-lined flexible tube according to claim 1, wherein: ​

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