Composite thermal insulation pipeline

Abstract

A heat preservation layer is installed on the surface of a pipe body, a protective rubber layer is connected to the surface of the heat preservation layer in a sleeved mode, one end of the pipe body is fixedly connected with a left splicing head, the other end of the pipe body is fixedly connected with a right splicing head, and splicing square holes are formed in the edge of the left splicing head at equal intervals in the circumferential direction. An outer sealing groove is formed in the middle of one end of the left splicing head, an inner sealing ring is fixedly connected to the position, located on one side of the outer sealing groove, of one end of the left splicing head, and an outer sealing ring is fixedly connected to the middle of one end of the right splicing head. The left splicing heads and the right splicing heads of the adjacent pipelines are mutually spliced and fixed, great convenience is provided, the left splicing heads and the right splicing heads are limited and fixed through the limiting clamping blocks, falling after mutual splicing is prevented, the installation mode is extremely simple and convenient, and the pipelines are connected and fixed without using articles such as bolts. The installation efficiency is improved, and meanwhile bolts and the like can be prevented from being rusted and difficult to dismantle subsequently.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation pipe technology, specifically a composite thermal insulation pipe. Background Technology

[0002] Insulated pipes are pipe systems that reduce heat loss or prevent the influence of external temperatures by adding thermal insulation materials (such as polyurethane, rock wool, glass wool, etc.) to the outer layer of the pipe. Common types include prefabricated direct-buried insulated pipes, steam insulated pipes, and cold-insulated pipes. The thermal insulation properties of insulated pipes can be used for the transportation of liquids, gases and other media. They are widely used in thermal insulation projects for pipelines in petroleum, chemical, aerospace, hot spring, military, district heating, central air conditioning, municipal and other industries.

[0003] However, currently, the construction and installation of insulated pipes require the use of bolts and other mechanisms for connection. The tightening and installation methods are cumbersome, reduce work efficiency, and the bolts are prone to corrosion, causing great inconvenience for subsequent pipe maintenance and disassembly. Therefore, this utility model provides a composite insulated pipe to meet people's needs. Utility Model Content

[0004] This utility model provides a composite thermal insulation pipe, which can effectively solve the problems mentioned in the background art, such as the need to use bolts and other mechanisms for connection during construction and installation of thermal insulation pipes, which is cumbersome and reduces work efficiency. In addition, bolts are prone to corrosion, causing great inconvenience to subsequent pipe maintenance and disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite insulated pipe, comprising a pipe body, an insulation layer installed on the surface of the pipe body, a protective rubber layer sleeved on the surface of the insulation layer, a left splice connector connected to one end of the pipe body, and a right splice connector fixedly connected to the other end of the pipe body.

[0006] The left splice joint has equidistant square holes along the circumferential direction on its edge. An outer sealing groove is provided in the middle of one end of the left splice joint. An inner sealing ring is fixedly connected to one end of the left splice joint at one side of the outer sealing groove. An outer sealing ring is fixedly connected to the middle of one end of the right splice joint.

[0007] An inner sealing groove is provided at one end of the right splice joint on one side of the outer sealing ring, and splicing blocks are fixedly connected at equal intervals along the circumferential direction on the edge of the right splice joint.

[0008] One end of the splicing block is fixedly connected to a fixed frame, and an elastic pad is embedded and fixedly installed inside the fixed frame. The bottom end of the elastic pad is fixedly connected to a limit block.

[0009] According to the above technical solution, the diameter and thickness of the left and right splice joints are the same, the positions of the outer sealing groove and the outer sealing ring are corresponding, and the positions of the inner sealing ring and the inner sealing groove are corresponding.

[0010] According to the above technical solution, the positions and quantities of the splicing square holes and splicing blocks are the same, and the length, width and height of the splicing square holes and splicing blocks are also the same.

[0011] According to the above technical solution, the surface of the protective rubber layer is provided with annular grooves at equal intervals, annular support plates are embedded in the interior of the annular grooves, wear-resistant pads are fixedly bonded to the bottom surface of the annular support plates, and marking strips are fixedly connected to the top surface of the annular support plates.

[0012] According to the above technical solution, the surface of the annular support plate is flush with the outer wall of the protective rubber layer, and the marking strip and the wear-resistant pad are positioned in the middle.

[0013] According to the above technical solution, grooves are symmetrically opened at both ends of the surface wall of the annular support plate, and positioning protrusions are symmetrically installed inside the grooves.

[0014] According to the above technical solution, both ends of the top of the wear-resistant pad are fixedly connected with connecting strips, and the middle of the connecting strips is symmetrically provided with round holes, through which the positioning protrusions move.

[0015] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0016] 1. Equipped with splicing square holes, outer sealing grooves, inner sealing rings, outer sealing rings, inner sealing grooves, splicing blocks, elastic pads, and limiting blocks, the splicing square holes and splicing blocks work together to secure the left and right splices of adjacent pipes, providing great convenience. The limiting blocks further limit and secure the splices, preventing them from falling off after splicing. The installation method is extremely simple, and no bolts or other materials are needed to connect and fix the pipes. This improves installation efficiency and prevents bolts from corroding and becoming difficult to remove later. The outer sealing groove and outer sealing ring fit together, and the inner sealing ring and inner sealing groove fit together to provide a double seal, improving the sealing performance of the pipe connection.

[0017] 2. The system is equipped with annular grooves, annular support plates, wear-resistant pads, and marking strips. The use of annular support plates improves the overall structural strength of the pipeline, making it more pressure-resistant. At the same time, the annular support plates provide support positions for subsequent pipeline installation, preventing damage to the pipeline surface during support installation. The wear-resistant pads improve the wear resistance of the pipeline bottom, providing protection during pipeline use, transportation, and relocation, reducing pipeline wear. The marking strips correspond to the positions of the wear-resistant pads, allowing for observation of the pad positions based on the marking strips, preventing pipeline misalignment that could cause other parts to come into contact with the ground and rub against it.

[0018] 3. It is equipped with grooves and positioning protrusions. The grooves and positioning protrusions work together to provide a certain fixed connection method for the wear-resistant pad. The two ends of the wear-resistant pad can be suspended through it, which greatly facilitates the installation and subsequent disassembly and replacement of the wear-resistant pad. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the left splice joint of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the limiting block of this utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the positioning protrusion of this utility model;

[0025] The following are the labels in the diagram: 1. Pipe body; 2. Insulation layer; 3. Protective rubber layer; 4. Left splice joint; 5. Splicing square hole; 6. Outer sealing groove; 7. Inner sealing ring; 8. Right splice joint; 9. Outer sealing ring; 10. Inner sealing groove; 11. Splicing square block; 12. Fixing frame; 13. Elastic pad; 14. Limiting block; 15. Annular groove; 16. Annular support plate; 17. Wear-resistant pad; 18. Marking strip; 19. Groove; 20. Positioning protrusion. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example: Figure 1-4As shown, this utility model provides a technical solution: a composite insulated pipe, including a pipe body 1, an insulation layer 2 made of polyurethane foam installed on the surface of the pipe body 1, and a protective rubber layer 3 covering the surface of the insulation layer 2. A left splice 4 is fixedly connected to one end of the pipe body 1, and a right splice 8 is fixedly connected to the other end of the pipe body 1. The left splice 4 has equidistant square holes 5 along its circumferential direction on its edge. An outer sealing groove 6 is formed in the middle of one end of the left splice 4. An inner sealing ring 7 is fixedly connected to one end of the left splice 4 at one side of the outer sealing groove 6. An outer sealing ring 9 is fixedly connected to the middle of one end of the right splice 8. The diameters and thicknesses of the left and right splice 4 and the right splice 8 are the same. The outer sealing groove 6 and the outer sealing ring 9 are positioned correspondingly, and the inner sealing ring 7 and the inner sealing groove 10 are positioned correspondingly. An inner sealing groove 10 is formed in one end of the right splice 8 at one side of the outer sealing ring 9. The edge of the right splice 8 has equidistant square holes 5 along its circumferential direction. Equivalently spaced splicing blocks 11 are fixedly connected. The splicing square holes 5 and splicing blocks 11 are in the same position and number. The length, width and height of the splicing square holes 5 and splicing blocks 11 are the same. A fixed frame 12 is fixedly connected to one end of the splicing block 11. An elastic pad 13 is embedded and fixedly installed inside the fixed frame 12. A limit block 14 is fixedly connected to the bottom end of the elastic pad 13. Through the cooperation of the splicing square holes 5 and splicing blocks 11, the left splice 4 and right splice 8 of adjacent pipes are spliced ​​and fixed to each other, which provides great convenience. The limit block 14 is used to limit and fix them to prevent them from falling off after splicing. The installation method is extremely simple. No bolts or other items are needed to connect and fix the pipes. While improving the installation efficiency, it can also prevent the bolts from rusting and being difficult to remove later. The outer sealing groove 6 and the outer sealing ring 9 fit together, and the inner sealing ring 7 and the inner sealing groove 10 fit together to provide two layers of sealing, which improves the sealing performance of the pipe connection.

[0028] Annular grooves 15 are equidistantly formed on the surface of the protective rubber layer 3. Annular support plates 16 are embedded inside the annular grooves 15. Wear-resistant pads 17 are fixedly bonded to the bottom surface of the annular support plates 16, and marking strips 18 are fixedly connected to the top surface of the annular support plates 16. The surface of the annular support plates 16 is flush with the surface wall of the protective rubber layer 3. The marking strips 18 and the middle positions of the wear-resistant pads 17 correspond to each other. The use of annular support plates 16 improves the overall structural strength of the pipeline, making the pipeline more pressure-resistant. At the same time, the annular support plates 16 can provide a position for support during subsequent pipeline installation, preventing damage to the pipeline surface wall during support installation. Wear-resistant pads 17 improve the wear resistance of the bottom of the pipeline, providing protection for pipeline use, transportation, and relocation, and reducing pipeline wear. The marking strips 18 correspond to the position of the wear-resistant pads 17. The position of the wear-resistant pads 17 can be observed according to the position of the marking strips 18 to prevent the pipeline from tilting and causing other parts to come into contact with the ground and rub against each other.

[0029] The annular support plate 16 has symmetrical grooves 19 at both ends of its surface wall. Positioning protrusions 20 are symmetrically installed inside the grooves 19. Connecting strips are fixedly connected to both ends of the top of the wear-resistant pad 17. Circular holes are symmetrically opened in the middle of the connecting strips. The positioning protrusions 20 move through the circular holes. The grooves 19 and positioning protrusions 20 work together to provide a certain fixed connection method for the wear-resistant pad 17. The wear-resistant pad 17 can be suspended by passing through both ends, which greatly facilitates the installation and subsequent disassembly and replacement of the wear-resistant pad 17.

[0030] The working principle and usage process of this utility model are as follows: First, the insulation layer 2 is used to protect the surface of the pipe body 1, which plays a role in heat insulation. The protective rubber layer 3 is sleeved on the surface of the insulation layer 2 to protect the insulation layer 2. The surface of the insulation layer 2 is equidistantly equipped with annular support plates 16, which improves the overall structural strength of the pipeline and plays a role in resisting pressure and deformation. Before the pipeline is transported and moved, the wear-resistant pad 17 is attached to the surface of the bottom end of the annular support plate 16. Both ends of the wear-resistant pad 17 have connecting strips, which are inserted into the groove 19. The positioning protrusion 20 passes through the through hole in the middle of the connecting strip, thereby playing a role in limiting the connection of the wear-resistant pad 17, so that it will not easily fall off the surface of the annular support plate 16. When the pipeline is transported, the wear-resistant pad 17 comes into contact with the ground and generates friction, which plays a role in protecting the pipeline. At the same time, when the pipeline is pulled, the position of the wear-resistant pad 17 is judged according to the position of the marking strip 18 to prevent the pipeline from tilting and causing the wear-resistant pad 17 to be misaligned, which would cause other parts of the pipeline to come into contact with the ground and rub.

[0031] When connecting and installing the pipes, the left splice 4 and right splice 8 of adjacent pipes are aligned with each other. The limiting block 14 is pushed into the fixed frame 12, and the elastic pad 13 is compressed. The worker fits the left splice 4 and right splice 8 together, and the splicing block 11 moves through the splicing square hole 5. The elastic pad 13 automatically resets and pops up, pushing the limiting block 14 out of the fixed frame 12. Thus, the limiting block 14 plays a limiting and locking role on the splicing block 11, locking and fixing the left splice 4 and right splice 8. When the right splice 8 and left splice 4 are tightly fitted, the outer sealing ring 9 will move and embed into the inner sealing groove 6, and the inner sealing ring 7 will embed into the inner sealing groove 10, playing a double sealing role. This improves the sealing performance of the pipe connection and prevents the items transported inside the pipe from leaking out. At the same time, the pipe needs to be supported during installation. The support mechanism is aligned with the annular support plate 16 to prevent the support mechanism from damaging the pipe body.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A composite insulated pipe comprising a pipe body (1), characterised in that: The surface of the pipe body (1) is mounted with a heat preservation layer (2), the surface of the heat preservation layer (2) is sleeved with a protective rubber layer (3), one end of the pipe body (1) is connected with a left splice joint (4), and the other end of the pipe body (1) is fixedly connected with a right splice joint (8). The edge of the left splice joint (4) is equidistantly provided with a splice square hole (5) in the circumferential direction, the middle of one end of the left splice joint (4) is provided with an outer sealing groove (6), the inner sealing ring (7) is fixedly connected to one end of the left splice joint (4) at the position of one side of the outer sealing groove (6), and the outer sealing ring (9) is fixedly connected to the middle of one end of the right splice joint (8). The middle of one end of the right splice joint (8) is provided with an inner sealing groove (10) at the position of one side of the outer sealing ring (9), and the edge of the right splice joint (8) is equidistantly fixedly connected with a splice square block (11) in the circumferential direction. The end of the splice square block (11) is fixedly connected with a fixed frame (12), the elastic pad (13) is embeddedly and fixedly installed in the inside of the fixed frame (12), and the limiting clamping block (14) is fixedly connected to the bottom end of the elastic pad (13).

2. The composite insulated pipe according to claim 1, wherein The diameters of the left splice joint (4) and the right splice joint (8) are the same, the positions of the outer sealing groove (6) and the outer sealing ring (9) correspond to each other, and the positions of the inner sealing ring (7) and the inner sealing groove (10) correspond to each other.

3. The composite insulated pipe of claim 1, wherein The positions and the number of the splice square hole (5) and the splice square block (11) are the same, and the length, the width and the height of the splice square hole (5) and the splice square block (11) are the same.

4. The composite insulated pipe of claim 1, wherein The surface of the protective rubber layer (3) is equidistantly provided with an annular groove (15), the annular support plate (16) is embeddedly installed in the inside of the annular groove (15), the wear-resistant pad (17) is fixedly bonded to the bottom end surface of the annular support plate (16), and the marking strip (18) is fixedly connected to the top end surface of the annular support plate (16).

5. A composite insulated pipe according to claim 4, wherein The surface of the annular support plate (16) is flush with the surface wall of the protective rubber layer (3), and the middle positions of the marking strip (18) and the wear-resistant pad (17) correspond to each other.

6. The composite insulated pipe of claim 4, wherein The recesses (19) are symmetrically provided at both ends of the surface wall of the annular support plate (16), and the positioning protrusions (20) are symmetrically installed in the inside of the recesses (19).

7. A composite insulated pipe according to claim 6, wherein The connecting strips are fixedly connected to both ends of the top of the wear-resistant pad (17), the circular holes are symmetrically provided in the middle of the connecting strips, and the positioning protrusions (20) are movably penetrated into the circular holes.

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