Metal-plastic composite pipe

Abstract

The utility model discloses a metal-plastic composite pipe, and relates to the technical field of corrugated pipe compounding. The metal-plastic composite pipe comprises a corrugated pipe, a lining pipe, two end rings, a fixed flange and a loose flange, the lining pipe is made of polytetrafluoroethylene, the lining pipe is arranged in the corrugated pipe, and the two ends of the lining pipe extend out of the corrugated pipe; the two end rings are arranged at the two ends of the corrugated pipe correspondingly, and the two ends of the lining pipe are sleeved with the two end rings correspondingly. The fixed flange is sleeved on one end ring; the loose flange is arranged on the corrugated pipe in a sleeving mode, the loose flange abuts against the other end ring, and the loose flange is used for being in butt joint with the medium inflow end of the metal-plastic composite pipe. The metal-plastic composite pipe not only can meet a certain strength requirement, but also can meet the corrosion resistance requirement of media, the flow resistance loss is consistent with that of a pipeline, and the metal-plastic composite pipe is wide in market prospect and considerable in benefit.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bellows pipe composite, and specifically relates to a gold plastic composite pipe. BACKGROUND

[0002] In the related art, the existing corrugated metal hose is composed of a stainless steel "U" type bellows pipe, a net cover and a joint, and has good pressure resistance and soft deformation characteristics, and is widely used in pipeline connection, pipeline settlement and pipeline vibration isolation and noise reduction pipeline systems.

[0003] However, in the fields of petrochemical and gas, the corrosiveness of the pipeline medium has high requirements on the pipeline material, some pipelines require strength, corrosion resistance and flexibility, and have deformation ability. SUMMARY

[0004] The utility model discloses a gold plastic composite pipe which solves the problem of insufficient corrosion resistance of the existing corrugated metal hose.

[0005] Therefore, the embodiment of the utility model provides a gold plastic composite pipe.

[0006] The gold plastic composite pipe according to the embodiment of the utility model comprises a corrugated pipe, an inner liner pipe, two end rings, a fixed flange and a loose sleeve flange, the material of the inner liner pipe is polytetrafluoroethylene, the inner liner pipe is arranged in the corrugated pipe, and the two ends of the inner liner pipe extend out of the corrugated pipe, the two end rings are arranged at the two ends of the corrugated pipe respectively, and the two end rings are sleeved on the two ends of the inner liner pipe respectively, the fixed flange is sleeved on one end ring, the loose sleeve flange is sleeved on the corrugated pipe, and the loose sleeve flange abuts against the other end ring, and the loose sleeve flange is used for connecting the medium inflow end of the gold plastic composite pipe.

[0007] According to the gold plastic composite pipe of the utility model, the inner liner pipe is arranged in the corrugated pipe, the inner liner pipe is tightly combined with the inner wall of the corrugated pipe, the material of the inner liner pipe is polytetrafluoroethylene, polytetrafluoroethylene is a high molecular polymer, and has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents. The gold plastic composite pipe of the utility model solves the adverse characteristics of weak corrosion resistance of the corrugated pipe and low strength of polytetrafluoroethylene, combines the two, makes the best of advantages and avoids disadvantages, meets the requirements of strength and corrosion resistance of the medium, and has consistent flow resistance loss and pipeline. The original performance characteristics of the two are still retained, 1+1>2 effect is achieved, the market prospect is wide, and the benefit is considerable.

[0008] In some embodiments, the two ends of the inner liner pipe have a flanging structure, and the flanging structure covers the outer end face of the end ring.

[0009] In some embodiments, the gold-plastic composite pipe further comprises a mesh sleeve, the mesh sleeve being sleeved on the inner liner pipe.

[0010] In some embodiments, the gold-plastic composite pipe further comprises two clamps, the two clamps being sleeved on the mesh sleeve, and the two clamps being respectively located at two ends of the inner liner pipe.

[0011] In some embodiments, the loose flange is sleeved on one of the clamps.

[0012] In some embodiments, the fixing holes on the fixing flange and the fixing holes on the loose flange are of the same size, and the axes of the fixing holes are in a straight line.

[0013] In some embodiments, the outer diameters of the fixing flange and the loose flange are of the same size.

[0014] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the present disclosure. Other features and aspects of the present disclosure will be more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0016] Figure 1 is a half-sectional view of a gold-plastic composite pipe according to an embodiment of the present application.

[0017] REFERENCE NUMERALS:

[0018] Gold-plastic composite pipe 100, corrugated pipe 10, mesh sleeve 11, clamp 12, inner liner pipe 20, flange structure 21, end ring 30, fixing flange 40, loose flange 50. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments below. However, those skilled in the art should understand that the embodiments described below are only used to illustrate the present application, and should not be regarded as limiting the scope of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] It can be understood that the pure polytetrafluoroethylene tube has corrosion resistance, but the strength cannot meet the requirements, and the bending and dead bending phenomenon is easy to occur when deformed. The pure metal hose can meet the requirements of strength and softness, but the corrosion resistance of stainless steel metal to medium cannot meet the requirements.

[0021] Therefore, we develop this two-in-one gold-plastic combined composite hose, which perfectly combines the advantages of the two and solves the difficulty of being unable to unify.

[0022] Polytetrafluoroethylene is a high polymer, which has many unique physical and chemical properties, excellent heat and cold resistance, insoluble in any solvent, and has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents. Therefore, it is widely used in medicine, petroleum, chemical industry, gas, machinery, electrical and electronic fields.

[0023] The corrugated metal hose is composed of a stainless steel "U" type corrugated pipe body, a net cover and a connector, and has good pressure resistance and soft deformation characteristics. It is also widely used in pipeline connection, pipeline settlement, pipeline vibration isolation and noise reduction pipeline systems.

[0024] The combination of the two is just complementary, which makes up for the defects of each when used alone, and develops a new type of gold-plastic composite hose, enriching the types of hoses.

[0025] As shown in Figure 1 The gold-plastic composite pipe 100 according to the embodiment of the utility model comprises a corrugated pipe 10, an inner liner pipe 20, two end rings 30, a fixed flange 40 and a loose sleeve flange 50.

[0026] The material of the inner liner pipe 20 is polytetrafluoroethylene, the inner liner pipe 20 is arranged in the corrugated pipe 10, and the two ends of the inner liner pipe 20 extend out of the corrugated pipe 10.

[0027] The two end rings 30 are arranged at the two ends of the corrugated pipe 10 respectively, and the two end rings 30 are sleeved on the two ends of the inner liner pipe 20 respectively.

[0028] The fixed flange 40 is sleeved on one end ring 30, the loose sleeve flange 50 is sleeved on the corrugated pipe 10, and the loose sleeve flange 50 abuts against the other end ring 30. The loose sleeve flange 50 is used for connecting the medium inflow end of the gold-plastic composite pipe 100.

[0029] According to the gold plastic composite pipe 100, the inner lining pipe 20 is arranged in the corrugated pipe 10, the inner lining pipe 20 is tightly combined with the inner wall of the corrugated pipe 10, the material of the inner lining pipe 20 is polytetrafluoroethylene, and the polytetrafluoroethylene is a high molecular polymer and has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents.The gold plastic composite pipe 100 of the utility model solves the adverse characteristics of weak corrosion resistance of the corrugated pipe 10 and low strength of the polytetrafluoroethylene, combines the two, and makes the best of the advantages and avoids the disadvantages, so that the gold plastic composite pipe 100 can meet the strength requirement and the corrosion resistance requirement of resisting medium, and the flow resistance loss is consistent with the pipeline.The original performance characteristics of the two are still retained, the effect of 1+1>2 is achieved, the market prospect is wide, and the benefit is considerable.

[0030] In summary, the gold plastic composite pipe solves the adverse characteristics of weak corrosion resistance of the metal hose and low strength of the polytetrafluoroethylene pipe, combines the two, makes the best of the advantages and avoids the disadvantages, so that the gold plastic composite hose can meet the strength requirement and the corrosion resistance requirement of resisting medium, and the flow resistance loss is consistent with the pipeline.The original performance characteristics of the two are still retained, the effect of 1+1>2 is achieved, the market prospect is wide, and the benefit is considerable.

[0031] In some embodiments, as shown in Figure 1 The two ends of the inner lining pipe 20 have a flanging structure 21, and the flanging structure 21 covers the outer end face of the end ring 30.

[0032] In some embodiments, as shown in Figure 1 The gold plastic composite pipe 100 further comprises a mesh sleeve 11, and the mesh sleeve 11 is sleeved on the inner lining pipe 20.

[0033] In some embodiments, as shown in Figure 1 The gold plastic composite pipe 100 further comprises two clamps 12, the two clamps 12 are sleeved on the mesh sleeve 11, and the two clamps 12 are located at the two ends of the inner lining pipe 20.

[0034] In some embodiments, as shown in Figure 1 The loose flange 50 is sleeved on one clamp 12.

[0035] In some embodiments, as shown in Figure 1 The fixing hole on the fixed flange 40 and the fixing hole on the loose flange 50 are of the same size, and the axial directions of the fixing holes are on a straight line.

[0036] In some embodiments, as shown in Figure 1 The outer diameters of the fixed flange 40 and the loose flange 50 are of the same size.

[0037] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0039] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0041] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0042] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A gold-plastic composite tube, characterized by, Comprise: a corrugated pipe; a liner pipe made of polytetrafluoroethylene, the liner pipe being arranged in the corrugated pipe and both ends of the liner pipe extending out of the corrugated pipe; two end rings, the two end rings being respectively arranged at both ends of the corrugated pipe and the two end rings being respectively sleeved on both ends of the liner pipe; a fixed flange, the fixed flange being sleeved on one of the end rings; a loose flange, the loose flange being sleeved on the corrugated pipe and abutting against the other end ring, the loose flange being used for connecting a medium inflow end of the metal-plastic composite pipe.

2. The metal-plastic composite pipe according to claim 1, characterized in that: both ends of the liner pipe have a flanging structure, the flanging structure covering an outer end surface of the end ring.

3. The gold-plastic composite tube according to claim 2, characterized by Further comprise: a mesh sleeve, the mesh sleeve being sleeved on the liner pipe.

4. The gold-plastic composite tube according to claim 3, characterized by Further comprise: two clamps, the two clamps being sleeved on the mesh sleeve and the two clamps being respectively located at both ends of the liner pipe.

5. The metal-plastic composite pipe according to claim 4, characterized in that: the loose flange is sleeved on one of the clamps.

6. The metal-plastic composite pipe according to claim 5, characterized in that: fixing holes on the fixed flange and fixing holes on the loose flange are of the same size, and the fixing holes are axially in a straight line.

7. The metal-plastic composite pipe according to claim 6, characterized in that: the fixed flange and the loose flange are of the same outer diameter size.

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