Multi-layer composite type high-performance anti-corrosion heat preservation pipeline

Abstract

The utility model belongs to the technical field of pipelines, and particularly relates to a multi-layer composite type high-performance anti-corrosion heat preservation pipeline which comprises two pipe bodies and a connecting assembly, and each pipe body comprises an industrial steel pipe. The two pull rings are pulled to drive the clamping pin to move, the clamping pin drives the limiting ring to compress the spring, the connecting block on the other fixing ring is inserted into the cavity, the pulling force on the pull rings is released, the spring drives the clamping pin to move through the limiting ring to be clamped with the clamping groove, two pipe bodies are connected, no professional tool is needed in the connecting process, and operation is convenient. The industrial steel pipe serves as a main body structure of the pipe body, the inner anti-corrosion layer is tightly attached to the inner wall of the industrial steel pipe to prevent internal corrosion, the heat preservation layer is made of polyurethane foam materials, heat loss is reduced, the protective layer enhances the mechanical strength of the heat preservation layer, and the outer anti-corrosion layer further provides external anti-corrosion protection. And additional physical protection and wear resistance are provided, so that a complex and changeable corrosion environment can be effectively dealt with through a plurality of layers of anti-corrosion materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline technical field, concretely is a kind of multilayer composite high-performance anticorrosive heat-insulating pipeline. BACKGROUND

[0002] Heat-insulating energy-saving pipeline is widely used in central heating, tap water pipe network, industrial pipeline and so on, can reduce the thermal loss of liquid flowing in heat-insulating pipe, aims at improving energy efficiency, reducing heat loss, to realize energy saving and environmental protection;

[0003] Chinese public authorization invention: CN214008510U discloses a kind of anticorrosive heat-insulating pipeline, relate to pipeline engineering, to solve the problem that flange needs to be aligned in advance with installation hole, and pipeline is inconvenient to rotate, so that installation process is more cumbersome, its technical scheme main points are: including pipe body, one end of pipe body is fixedly connected with annular fixed component, fixed component rotationally connects with snap ring, a plurality of screw holes one are opened on the snap ring along its circumferential direction and are distributed in annular array, a plurality of protrusions are fixedly connected on the snap ring along its circumferential direction and are distributed in annular array, protrusion is located at the opening of screw hole one, another side of pipeline is fixedly connected with fixed ring.The utility model embeds protrusion into annular groove when people installs pipeline, then bolt one is inserted into annular groove through screw hole two, then rotates snap ring, so that the side wall of protrusion and bolt one is in abutment, so that bolt one is aligned with screw hole one, facilitate to connect pipeline together, improve work efficiency;

[0004] However, the device still has some problems, in actual use process, the pipeline still has the problem of insufficient anticorrosion effect, because it still uses single-layer anticorrosion structure, cannot effectively cope with complex and changeable corrosion environment, at the same time, although the scheme simplifies the connection process, but still needs to use bolt for fixing during actual connection, and bolt connection needs to be fastened by professional tool, it is very inconvenient, therefore we propose a kind of multilayer composite high-performance anticorrosive heat-insulating pipeline to solve the above problems. UTILITY MODEL CONTENTS

[0005] (One) technical problem solved

[0006] In view of the deficiencies in the prior art, the utility model provides a kind of multilayer composite high-performance anticorrosive heat-insulating pipeline, solves the problems raised in the above background art.

[0007] (Two) technical scheme

[0008] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0009] A kind of multilayer composite high-performance anticorrosion thermal insulation pipeline, including two pipe bodies and connecting assembly, the pipe body includes industrial steel pipe, inner anticorrosive layer, thermal insulation layer, protective layer, outer anticorrosive layer, protective layer;

[0010] The inner wall of the industrial steel pipe is provided with an inner anticorrosive layer, the industrial steel pipe is provided with a thermal insulation layer, the thermal insulation layer is provided with a protective layer, the protective layer is provided with an outer anticorrosive layer, and the outer anticorrosive layer is provided with a protective layer;

[0011] The connecting assembly includes a fixing ring, a cavity, a latch, a limiting ring, a spring, a pull ring, a connecting block and a clamping groove.

[0012] The pipe body is fixedly connected with a fixing ring, one of the two fixing rings is provided with two cavities, the cavity is provided with a latch, the latch is fixedly connected with a limiting ring, the limiting ring is fixedly connected with a spring on one side, the end of the latch extends to the outside of one of the two fixing rings and is welded with a pull ring, the other side of the other fixing ring is fixedly connected with two connecting blocks, the connecting block is provided with a clamping groove, and the clamping groove is clamped with the corresponding latch.

[0013] Further, the spring is movably sleeved on the corresponding latch.

[0014] Further, the other side of the other fixing ring is fixedly connected with two limiting blocks, and the other side of one of the two fixing rings is provided with two limiting grooves.

[0015] Further, a rectangular hole is formed in the inner wall of the cavity, and the inner wall of the rectangular hole is movably in contact with the outer side of the corresponding connecting block.

[0016] Further, the industrial steel pipe is made of seamless steel pipe, and the inner anticorrosive layer is made of epoxy resin material.

[0017] Further, the thermal insulation layer is made of polyurethane foam material, and the protective layer is made of protective net.

[0018] Further, the outer anticorrosive layer is made of three-layer polyethylene material, and the protective layer is made of high-density polyethylene material.

[0019] (Three) beneficial effects

[0020] Compared with the prior art, the utility model provides a kind of multilayer composite high-performance anticorrosion thermal insulation pipeline, with the following beneficial effects:

[0021] The utility model discloses, through the simultaneous pulling of two pull rings and the movement of the card pin, the card pin drives the limiting ring to compress the spring, and the connecting block on the other fixed ring is inserted into the cavity through the rectangular hole, when the two fixed rings contact on the side of mutual approach, the pulling force on the pull ring is relaxed, the spring under the compression state resets, the spring drives the card pin to move and is clamped with the card slot through the limiting ring, and the two pipe bodies are connected, and when connecting, professional tools are not needed, and the operation is simple and convenient, the industrial steel pipe is as the main structure of pipe body, bears the pressure of internal medium and the load of external environment, the internal anticorrosive layer is closely attached on the inner wall of industrial steel pipe, effectively insulates the direct contact of medium and industrial steel pipe, prevents internal corrosion, the thermal insulation layer polyurethane foam material reduces heat loss, maintains the temperature stability of medium in pipe body, the protective layer enhances the mechanical strength of thermal insulation layer, prevents thermal insulation material from falling off, the external anticorrosive layer further provides external anticorrosive protection, enhances the durability and service life of pipe body, the protective layer is as the outermost layer, provides additional physical protection and wear resistance, thereby through multilayer anticorrosive material, the complex and changeable corrosion environment can be effectively coped with. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the three-dimensional structure schematic diagram of one of the two pipe bodies of the utility model;

[0024] Figure 3 It is the three-dimensional structure schematic diagram of another pipe body of the utility model;

[0025] Figure 4 It is the three-dimensional structure schematic diagram of one of the two fixed rings of the utility model;

[0026] Figure 5 It is the three-dimensional structure schematic diagram of the pipe body of the utility model.

[0027] In the drawing: 1, pipe body; 2, industrial steel pipe; 3, internal anticorrosive layer; 4, thermal insulation layer; 5, protective layer; 6, external anticorrosive layer; 7, protective layer; 8, connecting assembly; 9, fixed ring; 10, cavity; 11, card pin; 12, limiting ring; 13, spring; 14, pull ring; 15, connecting block; 16, card slot; 17, limiting block; 18, limiting slot; 19, rectangular hole. DETAILED DESCRIPTION

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example

[0030] like Figures 1-5 As shown, an embodiment of this utility model proposes a multi-layer composite high-performance anti-corrosion and heat-insulating pipe, which includes two pipe bodies 1 and a connecting assembly 8. The pipe body 1 includes an industrial steel pipe 2, an inner anti-corrosion layer 3, a heat-insulating layer 4, a protective layer 5, an outer anti-corrosion layer 6, and a protective layer 7.

[0031] The inner wall of the industrial steel pipe 2 is provided with an inner anti-corrosion layer 3, the upper part of the industrial steel pipe 2 is provided with an insulation layer 4, the insulation layer 4 is provided with a protective layer 5, the protective layer 5 is provided with an outer anti-corrosion layer 6, and the outer anti-corrosion layer 6 is provided with a protective layer 7.

[0032] The connecting assembly 8 includes a fixing ring 9, a cavity 10, a locking pin 11, a limiting ring 12, a spring 13, a pull ring 14, a connecting block 15, and a slot 16;

[0033] The pipe body 1 is fixedly connected with a fixed ring 9, two cavities 10 are formed in one of the two fixed rings 9, a locking pin 11 is arranged in the cavity 10, the locking pin 11 is fixedly connected with a limiting ring 12, a spring 13 is fixedly connected between one side of the limiting ring 12 and the inner wall of the corresponding cavity 10, the end of the locking pin 11 extends out of one of the two fixed rings 9 and is welded with a pull ring 14, one side of the other fixed ring 9 is fixedly connected with two connecting blocks 15, a clamping groove 16 is formed in the connecting block 15, the clamping groove 16 is clamped with the corresponding locking pin 11, and the two pull rings 14 are pulled at the same time, the pull ring 14 drives the corresponding locking pin 11 to move, the locking pin 11 drives the corresponding limiting ring 12 to compress the spring 13, then the connecting block 15 on the other fixed ring 9 is inserted into the cavity 10 through the rectangular hole 19, and the limiting block 17 is inserted into the corresponding limiting groove 18 at the same time, when the two fixed rings 9 are close to each other on one side, the pulling force of the pull ring 14 is released, the spring 13 in the compressed state is reset, the spring 13 drives the corresponding locking pin 11 to move through the limiting ring 12, so that the locking pin 11 is clamped with the corresponding clamping groove 16, thereby connecting the two pipe bodies 1, and professional tools are not required during connection, and the operation is simple and convenient. The industrial steel pipe 2 is used as the main structure of the pipe body 1, bears the pressure of the internal medium and the load of the external environment, the inner anticorrosive layer 3 is closely attached to the inner wall of the industrial steel pipe 2, effectively isolates the direct contact between the medium and the industrial steel pipe 2, prevents internal corrosion, the heat preservation layer 4 is polyurethane foam material, reduces heat loss, maintains the temperature stability of the medium in the pipe body 1, the protection layer 5 enhances the mechanical strength of the heat preservation layer 4, prevents the heat preservation material from falling off, the outer anticorrosive layer 6 further provides external anticorrosive protection, enhances the durability and service life of the pipe body 1, the protective layer 7 is used as the outermost layer, provides additional physical protection and wear resistance, and enhances the overall strength of the pipe body 1, so that the complex and variable corrosion environment can be effectively coped with through the multiple anticorrosive layers.

[0034] In some embodiments, the spring 13 is movably sleeved on the corresponding locking pin 11, and the spring 13 is arranged to reset.

[0035] In some embodiments, one side of the other fixed ring 9 of the two fixed rings 9 is fixedly connected with two limiting blocks 17, and one side of one of the two fixed rings 9 is provided with two limiting grooves 18.

[0036] In some embodiments, a rectangular hole 19 is formed in the inner wall of the cavity 10, and the inner wall of the rectangular hole 19 movably contacts the outer side of the corresponding connecting block 15.

[0037] In some embodiments, the industrial steel pipe 2 is made of seamless steel pipe, and the inner anticorrosive layer 3 is made of epoxy resin material. The seamless steel pipe is made of a whole piece of steel material without welds, so it has higher strength and pressure-bearing capacity. The epoxy resin has excellent alkali resistance, acid resistance and solvent resistance, which can effectively isolate the medium from direct contact with the steel pipe.

[0038] In some embodiments, the thermal insulation layer 4 is made of polyurethane foam material, and the protective layer 5 is made of protective net. The polyurethane foam material has very low thermal conductivity, so it has excellent thermal insulation performance. It can effectively prevent heat transfer and reduce energy loss. The protective net can tightly wrap outside the thermal insulation layer 4 to prevent mechanical damage such as scratching and impact. This helps to maintain the integrity of the thermal insulation layer 4 and ensure its thermal insulation performance is not affected.

[0039] In some embodiments, the outer anticorrosive layer 6 is made of three-layer polyethylene material, and the protective layer 7 is made of high-density polyethylene material. The three-layer polyethylene (3PE) anticorrosive layer is composed of an epoxy powder coating at the bottom, an adhesive in the middle, and a high-density polyethylene (HDPE) at the outer layer. This structure makes the anticorrosive layer have excellent corrosion resistance, which can effectively isolate the oxygen, moisture and chemical substances in the air from eroding the steel pipe, preventing it from rusting, corroding and wearing. The high-density polyethylene can further isolate the external environment from eroding due to its excellent corrosion resistance, providing additional corrosion protection for the pipe body 1.

[0040] The working principle or structural principle is that when used, the two pipe bodies 1 are in a separated state, when connected, the two pull rings 14 are pulled at the same time, the pull ring 14 drives the corresponding clamping pin 11 to move, the clamping pin 11 drives the corresponding limiting ring 12 to compress the spring 13, and then the connecting block 15 on the other fixed ring 9 is inserted into the cavity 10 through the rectangular hole 19, and at the same time, the limiting block 17 is inserted into the corresponding limiting groove 18, when the side of the two fixed rings 9 close to each other is in contact, the pulling force on the pull ring 14 is released, the spring 13 in the compressed state resets, the spring 13 drives the corresponding clamping pin 11 to move through the limiting ring 12, so that the clamping pin 11 is clamped with the corresponding clamping groove 16, thereby connecting the two pipe bodies 1, and professional tools are not required during connection, and the operation is simple and convenient, the industrial steel pipe 2 is used as the main structure of the pipe body 1, bears the pressure of the internal medium and the load of the external environment, the inner anticorrosive layer 3 is closely attached to the inner wall of the industrial steel pipe 2, effectively isolates the direct contact between the medium and the industrial steel pipe 2, prevents internal corrosion, the thermal insulation layer 4 is polyurethane foam material, reduces heat loss, maintains the temperature stability of the medium in the pipe body 1, the protective layer 5 enhances the mechanical strength of the thermal insulation layer 4, prevents the thermal insulation material from falling off, the outer anticorrosive layer 6 further provides external anticorrosive protection, enhances the durability and service life of the pipe body 1, the protective layer 7 is used as the outermost layer, provides additional physical protection and wear resistance, and at the same time enhances the overall strength of the pipe body 1, so that through the multiple anticorrosive materials, the complex and changeable corrosion environment can be effectively coped with.

[0041] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-layer composite high-performance anti-corrosion and heat-insulating pipe, comprising two pipe bodies (1) and a connecting assembly (8), characterized in that: The pipe body (1) includes an industrial steel pipe (2), an inner anti-corrosion layer (3), a heat insulation layer (4), a protective layer (5), an outer anti-corrosion layer (6), and a protective layer (7); The industrial steel pipe (2) has an inner anti-corrosion layer (3) on its inner wall, an insulation layer (4) on its upper surface, a protective layer (5) on its insulation layer (4), an outer anti-corrosion layer (6) on its protective layer (5), and a protective layer (7) on its outer anti-corrosion layer (6). The connecting assembly (8) includes a fixing ring (9), a cavity (10), a locking pin (11), a limiting ring (12), a spring (13), a pull ring (14), a connecting block (15), and a slot (16); A fixing ring (9) is fixedly connected to the tube body (1). One of the two fixing rings (9) has two cavities (10). A locking pin (11) is provided in the cavity (10). A limiting ring (12) is fixedly connected to the locking pin (11). A spring (13) is fixedly connected between one side of the limiting ring (12) and the inner wall of the corresponding cavity (10). The end of the locking pin (11) extends to the outside of one of the two fixing rings (9) and is welded with a pull ring (14). Two connecting blocks (15) are fixedly connected to one side of the other fixing ring (9). A slot (16) is provided on the connecting block (15). The slot (16) is engaged with the corresponding locking pin (11).

2. The multi-layer composite high-performance anti-corrosion and heat-insulating pipeline according to claim 1, characterized in that: The spring (13) is movably sleeved on the corresponding locking pin (11).

3. The multi-layer composite high-performance anti-corrosion and heat-insulating pipeline according to claim 2, characterized in that: Two limiting blocks (17) are fixedly connected to one side of the other fixed ring (9) of the two fixed rings (9), and two limiting grooves (18) are opened on one side of one of the fixed rings (9), and the limiting grooves (18) are engaged with the corresponding limiting blocks (17).

4. The multi-layer composite high-performance anti-corrosion and heat-insulating pipeline according to claim 3, characterized in that: A rectangular hole (19) is provided on one side of the inner wall of the cavity (10), and the inner wall of the rectangular hole (19) is in contact with the outer side of the corresponding connecting block (15).

5. The multi-layer composite high-performance anti-corrosion and heat-insulating pipeline according to claim 4, characterized in that: The industrial steel pipe (2) is made of seamless steel pipe, and the inner anti-corrosion layer (3) is made of epoxy resin material.

6. The multi-layer composite high-performance anti-corrosion and heat-insulating pipeline according to claim 5, characterized in that: The insulation layer (4) is made of polyurethane foam, and the protective layer (5) is made of protective netting.

7. A multi-layer composite high-performance anti-corrosion and heat-insulating pipeline according to claim 6, characterized in that: The outer anti-corrosion layer (6) is made of three-layer polyethylene material, and the protective layer (7) is made of high-density polyethylene material.

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