Natural gas pipeline with heat preservation structure

Abstract

The utility model provides a natural gas pipeline with a heat preservation structure. The natural gas pipeline comprises a heat preservation layer, a ribbon, an isolation layer, heat preservation units, a heat preservation plate, a notch, a double-sided adhesive tape, a concave table, a boss and a stainless steel sheet bend. According to the pipeline heat preservation structure, the heat preservation units are formed by the bent heat preservation plates, the heat preservation layers are formed by splicing the heat preservation units, and the isolation layers are formed by the bent stainless steel sheets, so that the pipeline heat preservation structure can be rapidly assembled; therefore, the time for blocking and foaming the two ends of the isolating layer in the process of forming the heat preservation structure by foaming polyethylene foam is eliminated, the manufacturing process of the heat preservation pipeline is short, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas pipelines, in particular to a natural gas pipeline with a heat insulation structure. Background Art

[0002] Insulated pipes are widely used in liquid and gas transportation networks. Insulation is a crucial step in this process, and its success is directly related to whether the pipeline can be officially put into use. Currently, the most commonly used insulation method for liquefied natural gas pipelines is shell-and-tube insulation. Existing shell-and-tube insulation consists of a circular tube that wraps around the pipe, leaving a gap between the two tubes. This gap is then sealed at both ends of the tube, and an opening is opened in the middle. Polyethylene foam is then injected into the opening for foaming, thereby achieving thermal insulation. This method requires a certain amount of time to seal both ends, and the foaming process also takes some time, which makes the production process of the insulated pipe longer and less efficient. Utility Model Content

[0003] The purpose of this utility model is to design a natural gas pipeline with an insulation structure to solve the problems raised by the background art. To achieve the above purpose, the utility model provides the following technical solution: comprising an insulation layer and an isolation layer fixed to the insulation layer by cable ties, the insulation layer being composed of a plurality of insulation units, each of which is formed by bending an insulation board, the insulation board being provided with a plurality of notches, the two end surfaces of the insulation board at the bent joint being connected by double-sided tape, one end of the insulation unit being provided with a concave platform, and the other end of the insulation unit being provided with a convex platform that cooperates with the concave platform, and the isolation layer being formed by bending a stainless steel sheet.

[0004] Furthermore, the insulation board is provided with a plurality of anti-slip bosses, and the stainless steel sheet is provided with anti-slip recesses that cooperate with the anti-slip bosses.

[0005] Furthermore, each of the anti-slip bosses includes a first arc surface and a second arc surface that are tangent to each other, and the second arc surface is connected to the body of the insulation board through a plane.

[0006] Furthermore, the stainless steel sheet is provided with a belt groove for placing the cable tie.

[0007] Furthermore, the belt groove is composed of a plurality of notches arranged on the anti-slip concave platform.

[0008] Furthermore, a limiting block for limiting the position of the cable tie is provided on the belt groove.

[0009] Furthermore, the limiting block is connected to the stainless steel sheet by riveting.

[0010] Furthermore, the cable tie is a stainless steel cable tie.

[0011] Furthermore, the notch is a triangular notch.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model is provided with a form in which the insulation unit is formed by bending the insulation plate, the insulation layer is formed by splicing the insulation units, and the isolation layer is formed by bending the stainless steel sheet, so that the insulation structure of the pipeline can be quickly assembled; thereby eliminating the time used for the sealing and foaming processes of the two ends of the isolation layer in the process of forming the insulation structure by foaming polyethylene foam, thereby shortening the production process of the insulation pipeline and increasing the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial enlarged schematic diagram of the utility model;

[0017] Figure 3 It is a partial structural diagram of the insulation unit and insulation board.

[0018] Among them: 1. Insulation layer; 2. Isolation layer; 3. Stainless steel tie; 4. Notch; 5. Pipe; 6. Double-sided tape; 7. Notch; 8. Limit block; 9. Concave platform; 10. Anti-slip concave platform; 11. First arc surface; 12. Second arc surface; 13. Plane; 14. Insulation unit; 15. Boss; 16. Insulation board. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0020] Example: Please refer to Figure 1-3A natural gas pipeline with an insulation structure includes an insulation layer 1 and an isolation layer 2 fixed to the insulation layer 1 by a cable tie. The insulation layer 1 is composed of a plurality of insulation units 14. Each insulation unit 14 is formed by bending an insulation board 16. The insulation board 16 is provided with a plurality of notches 7. The two end faces of the insulation board 16 at the bending joint are connected by double-sided tape 6. One end of the insulation unit 14 is provided with a concave platform 9, and the other end of the insulation unit 14 is provided with a convex platform 15 that cooperates with the concave platform 9. The isolation layer 2 is formed by bending a stainless steel sheet. When the insulation structure of the pipeline 5 needs to be installed, it is only necessary to bend the insulation board 16 around the pipeline 5 and bend the bending to The two end faces of the joint are torn apart by double-sided tape 6, and then the two end faces are glued to complete the installation of the insulation unit 14. After multiple insulation units 14 are installed, the adjacent bosses 15 are inserted into the recesses 9 to complete the installation of the insulation layer 1. Then, a stainless steel sheet is wrapped around the outer surface of the insulation layer 1 and fixed with a cable tie to complete the installation of the isolation layer 2. Therefore, the practical insulation structure adopts the form of curved splicing, which eliminates the time used for sealing and foaming the two ends of the isolation layer 2 in the process of forming the insulation structure by polyethylene foam foaming, thereby making the production process of the insulation pipe 5 shorter and more efficient.

[0021] In this embodiment, the insulation board 16 is provided with several anti-slip bosses, and the stainless steel sheet is provided with anti-slip recesses 10 that cooperate with the anti-slip bosses, and each anti-slip boss includes a first arc surface 11 and a second arc surface 12 that are tangent to each other, and the second arc surface 12 is connected to the main body of the insulation board 16 through a plane 13, which ensures the stability of the stainless steel sheet during installation; in addition, the insulation board 16 is integrally formed, and the processing cost is low, and the notch 7 is a triangular notch, which is conducive to the closing of the notch 7 when the insulation board 16 is bent, thereby improving the thermal insulation capacity of the insulation layer 1; the stainless steel sheet is provided with a belt groove for placing a cable tie, and the belt groove is composed of several notches 4 arranged on the anti-slip recess 10, and a limit block 8 for limiting the cable tie is provided on the belt groove. The limit block 8 is connected to the stainless steel sheet by riveting, thereby ensuring the stability of the cable tie and preventing the cable tie from moving in the stainless steel sheet. The cable tie is a stainless steel cable tie 3, which improves strength and is beneficial to corrosion resistance.

[0022] How it works

[0023] When it is necessary to install the insulation structure of the pipe 5, it is only necessary to bend the insulation board 16 around the pipe 5, and tear the two end faces of the bending joint with the double-sided tape 6, and then stick the two end faces together. After installing multiple insulation units 14, the adjacent bosses 15 are inserted into the recesses 9, and then wrapped with stainless steel sheets on the outer surface of the insulation layer 1, so that the anti-slip bosses and the anti-slip recesses 10 are embedded and fixed with cable ties, thereby completing the installation of the isolation layer 2; therefore, the practical insulation structure adopts the form of bending and splicing, which eliminates the time used for sealing and foaming the two ends of the isolation layer 2 in the process of forming the insulation structure by using polyethylene foam, thereby making the production process of the insulation pipe 5 shorter and more efficient.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "upper," "lower," "left," "right," "front," "rear," and similar expressions used herein are for illustrative purposes only.

[0025] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A natural gas pipeline with a thermal insulation structure, characterized in that: The invention comprises a heat-insulating layer (1) and an isolation layer (2) fixed to the heat-insulating layer (1) by a cable tie, wherein the heat-insulating layer (1) is formed by splicing a plurality of heat-insulating units (14), each of the heat-insulating units (14) is formed by bending a heat-insulating plate (16), a plurality of notches (7) are provided on the heat-insulating plate (16), two end surfaces of the heat-insulating plate (16) at the bent joint are connected by a double-sided adhesive tape (6), a concave platform (9) is provided at one end of the heat-insulating unit (14), and a convex platform (15) cooperating with the concave platform (9) is provided at the other end of the heat-insulating unit (14), and the isolation layer (2) is formed by bending a stainless steel sheet.

2. The natural gas pipeline with a thermal insulation structure according to claim 1, characterized in that: The insulation board (16) is provided with a plurality of anti-skid bosses, and the stainless steel sheet is provided with anti-skid recesses (10) that cooperate with the anti-skid bosses.

3. The natural gas pipeline with a thermal insulation structure according to claim 2, characterized in that: Each of the anti-slip bosses comprises a first arc surface (11) and a second arc surface (12) which are tangent to each other, and the second arc surface (12) is connected to the body of the insulation board (16) via a plane (13).

4. The natural gas pipeline with a thermal insulation structure according to claim 2, characterized in that: The stainless steel sheet is provided with a belt groove for placing the cable tie.

5. The natural gas pipeline with a thermal insulation structure according to claim 4, characterized in that: The belt groove is composed of a plurality of notches (4) arranged on the anti-slip concave platform (10).

6. The natural gas pipeline with a thermal insulation structure according to claim 4, characterized in that: A limiting block (8) for limiting the position of the cable tie is provided on the strap groove.

7. The natural gas pipeline with a thermal insulation structure according to claim 6, characterized in that: The limit block (8) is connected to the stainless steel sheet by riveting.

8. The natural gas pipeline with a thermal insulation structure according to claim 1, characterized in that: The cable tie is a stainless steel cable tie (3).

9. The natural gas pipeline with a thermal insulation structure according to claim 1, characterized in that: The notch (7) is a triangular notch.

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