Anti-freezing natural gas pipeline structure

Abstract

The utility model discloses an anti-freezing natural gas pipeline structure which comprises a pipeline body, an inner coating is arranged on the inner wall of the pipeline body, and an insulating layer is coated on the outer wall of the pipeline body. The pipeline further comprises a plurality of supporting pieces, each supporting piece comprises an upper pipe body and a lower pipe body, at least one first supporting block is fixed to the lower pipe body, at least one second supporting block is fixed to the upper pipe body, and the pipeline body is arranged on the first supporting blocks and limited by the second supporting blocks. An inner thermal insulation layer is arranged on the inner wall of the supporting piece; annular grooves are formed in the two sides of each supporting piece respectively, and the two ends of each protective sleeve are inserted into the annular grooves of the two adjacent supporting pieces respectively. The protective sleeve is divided into a first half barrel and a second half barrel, at least part of the first half barrel is provided with a first heat preservation layer, and at least part of the first half barrel is provided with a photothermal conversion material; at least part of the second half barrel is provided with a second heat preservation layer and at least part of the second half barrel is provided with moisture absorption and heating materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of delivery pipes, and in particular relates to an antifreeze natural gas pipeline structure. Background Art

[0002] A natural gas pipeline is a pipeline that transports natural gas (including associated gas produced by oil fields) from the mining site or processing plant to the urban gas distribution center or industrial enterprise users. It is also called a gas transmission pipeline. Using natural gas pipelines to transport natural gas is a way to transport a large amount of natural gas on land. Natural gas pipeline transportation has the advantages of low transportation cost, small land occupation, fast construction, large oil and gas transportation volume, high safety performance, and low transportation loss. Since there will be extremely cold weather on the plateau, which will cause damage to the pipeline, it is very important to obtain an antifreeze natural gas pipeline structure. Utility Model Content

[0003] In order to solve at least one of the above technical problems, the utility model provides an antifreeze natural gas pipeline structure, including a pipeline body, wherein the inner wall of the pipeline body is provided with an inner coating, and the outer wall is coated with an insulating layer;

[0004] It also includes multiple support members, which include an upper tube body and a lower tube body, at least one first support block is fixed on the lower tube body, at least one second support block is fixed on the upper tube body, the pipeline body is placed on the first support block and is limited by the second support block; an inner insulation layer is provided on the inner wall of the support member; and a mounting base can be integrally formed on the lower tube body.

[0005] The support member is provided with an annular groove on both sides thereof, and further comprises a protective sleeve, the two ends of the protective sleeve being respectively inserted into the annular grooves of two adjacent support members;

[0006] A limiting structure is provided between the protective sleeve and the annular groove;

[0007] The protective sleeve is divided into a first half-sleeve and a second half-sleeve, wherein at least a portion of the first half-sleeve is provided with a first heat-insulating layer and at least a portion of the first half-sleeve is provided with a light-to-heat conversion material;

[0008] The second half barrel is at least partially provided with a second heat-insulating layer and at least partially provided with a moisture-absorbing and heat-generating material.

[0009] The limiting structure comprises: a guide rail is provided on the outer wall of the annular groove, a movable column is fixed on the outer wall of the protective sleeve, the movable column moves within the range of the guide rail, and a limiting groove connected to the guide rail is provided on one side of the guide rail. The limiting groove and the guide rail are arranged vertically.

[0010] The limit control has two forms. One is: a limit slot is fixed on the outer surface of the support member outside the limit slot, an extension ring is fixed on the movable column, a limit protrusion matching the limit slot is fixed on the extension ring, and an extension column is fixed outside the movable column. When the protective sleeve moves axially along the limit slot, the two ends of the protective sleeve do not separate from the annular grooves on both sides.

[0011] Second, the limiting structure also includes a plurality of limiting arc grooves arranged in an annular manner and opened on the inner wall of the annular groove. The outer wall of the protective sleeve is connected with steel balls through elastic parts, and the steel balls are placed in the limiting arc grooves to achieve rotational limiting.

[0012] The first half tube and the second half tube are fixedly connected by clamping. The upper tube body and the lower tube body are fixedly connected by clamping.

[0013] The first insulation layer is hollowed out, and a light-to-heat conversion material, such as a flexible strontium titanate nanofiber film, is fixed at the hollowed-out position; the second insulation layer is hollowed out, and a moisture-absorbing and heat-generating material, such as heat-generating fiber cotton, is fixed at the hollowed-out position. The above insulation layer can use existing glass wool.

[0014] Compared with the prior art, the advantages of the utility model are: the utility model has a simple structure, the existing natural gas pipeline body is supported by a support, wherein the joints of the natural gas pipeline can be made within the range of the support, and rainwater can be prevented from seeping in from the joints, and the natural gas pipeline body can be protected from erosion such as weathering; the utility model also has a rotatable protective sleeve, for example, in some cold areas, such as places with high altitudes, the photothermal conversion material can be facing upward to facilitate heat absorption and insulation; when the forest or natural gas pipeline is buried in the soil, the hygroscopic and heat-generating material can absorb moisture for insulation; or in the east China area, some natural gas pipelines are built on the ground, and the temperature is high in summer, the photothermal conversion material can be rotated downward to prevent absorption of higher temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 2 It is an exploded view of the support member of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the protective sleeve of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the use of the limiting structure of the utility model;

[0019] Figure 5 After the limiting structure of the utility model is used;

[0020] Reference numerals:

[0021] 1 pipeline body; 2 upper tube body; 3 lower tube body; 4 first support block; 5 mounting base; 6 annular groove; 7 protective sleeve; 8 first half tube; 9 second half tube; 10 first thermal insulation layer; 11 photothermal conversion material; 12 second thermal insulation layer; 13 hygroscopic heat-generating material; 14 guide rail; 15 limiting groove; 16 extension ring; 17 limiting card slot; 18 limiting protrusion; 19 inner thermal insulation layer; 20 moving column. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0023] Referring to the attached drawings, the utility model adopts the following technical scheme: an antifreeze natural gas pipeline structure, comprising a pipeline body 1, the inner wall of the pipeline body 1 is provided with an inner coating, and the outer wall is coated with an insulating layer;

[0024] It also includes multiple support members, which include an upper tube body 2 and a lower tube body 3. At least one first support block 4 is fixed on the lower tube body 3, and at least one second support block is fixed on the upper tube body 2. The pipeline body 1 is placed on the first support block 4 and is limited by the second support block; an inner insulation layer 19 is provided on the inner wall of the support member; and a mounting base 5 can be integrally formed on the lower tube body 3.

[0025] The support member is provided with an annular groove 6 on both sides thereof, and further comprises a protective sleeve 7, the two ends of the protective sleeve 7 are respectively inserted into the annular grooves 6 of two adjacent support members;

[0026] A limiting structure is provided between the protective sleeve 7 and the annular groove 6;

[0027] The protective sleeve 7 is divided into a first half-sleeve 8 and a second half-sleeve 9, wherein at least part of the first half-sleeve is provided with a first heat-insulating layer 10 and at least part of the light-to-heat conversion material 11;

[0028] The second half barrel is at least partially provided with a second heat-insulating layer 12 and at least partially provided with a moisture-absorbing and heat-generating material 13 .

[0029] There is a small gap between the second support block and the outer wall of the pipe body 1 , which can accommodate the pipe body 1 after thermal expansion.

[0030] The limiting structure includes: a guide rail 14 is provided on the outer wall of the annular groove 6, a movable column 20 is fixed on the outer wall of the protective sleeve 7, and the movable column 20 moves within the range of the guide rail 14, and at least two limiting grooves 15 connected to the guide rail 14 are provided on one side of the guide rail 14. The limiting grooves 15 and the guide rail 14 are arranged vertically.

[0031] The limit control has two forms. First, a limit slot 17 is fixed on the outer surface of the support member outside the limit slot 15, an extension ring 16 is fixed on the movable column 20, a limit protrusion 18 cooperating with the limit slot 17 is fixed on the extension ring 16, and an extension column is fixed outside the movable column 20. When the protective sleeve 7 moves axially along the limit slot 15, the two ends of the protective sleeve 7 do not separate from the annular grooves 6 on both sides.

[0032] Second, the limiting structure also includes a plurality of limiting arc grooves arranged in an annular manner and opened on the inner wall of the annular groove 6. The outer wall of the protective sleeve 7 is connected with steel balls through elastic members, and the steel balls are placed in the limiting arc grooves to achieve rotational limiting.

[0033] The first half tube 8 and the second half tube 9 are fixedly connected by clamping. The upper tube body 2 and the lower tube body 3 are fixedly connected by clamping.

[0034] A hollow is formed on the first insulation layer 10, and a light-to-heat conversion material 11, such as a flexible strontium titanate nanofiber film, is fixed at the hollow position; a hollow is formed on the second insulation layer 12, and a moisture-absorbing and heat-generating material 13, such as heat-generating fiber cotton, is fixed at the hollow position. The above insulation layer can use existing glass wool.

[0035] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, the existing natural gas pipeline body 1 is supported by a support, wherein the joints of the natural gas pipeline can be made within the range of the support, and rainwater can be prevented from seeping in from the joints, and the natural gas pipeline body 1 can be protected from erosion such as weathering; the present invention also has a rotatable protective sleeve 7, for example, in some cold areas, such as places with high altitudes, the photothermal conversion material 11 can be turned upward to facilitate heat absorption and insulation; when the forest or natural gas pipeline is buried in the soil, the hygroscopic heat-generating material 13 can absorb moisture for insulation; or in the east China area, some natural gas pipelines are built on the ground, and the temperature is high in summer, and the photothermal conversion material 11 can be turned downward to prevent absorption of higher temperatures.

[0036] The utility model has a simple structure and is easy to install, and can be adapted to the pipe insulation in various weather environments. The antifreeze natural gas pipeline structure of the structure can be laid in harsh environments, and ordinary pipelines can be laid in other places.

[0037] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0038] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A freeze-proof natural gas pipeline structure, characterized in that: The invention comprises a pipeline body (1) and a plurality of support members, wherein the support members comprise an upper pipe body (2) and a lower pipe body (3), at least one first support block (4) is fixed on the lower pipe body (3), at least one second support block is fixed on the upper pipe body (2), the pipeline body (1) is placed on the first support block (4) and is limited by the second support block; an inner wall of the support member is provided with an inner thermal insulation layer (19); The support member is provided with an annular groove (6) on both sides thereof, and further comprises a protective sleeve (7), wherein both ends of the protective sleeve (7) are respectively inserted into the annular grooves (6) of two adjacent support members; A limiting structure is provided between the protective sleeve (7) and the annular groove (6).

2. The antifreeze natural gas pipeline structure according to claim 1 is characterized in that: The limiting structure comprises: a guide rail (14) is provided on the outer wall of the annular groove (6); a movable column (20) is fixed on the outer wall of the protective sleeve (7); the movable column (20) moves within the range of the guide rail (14); and a limiting groove (15) is provided on one side of the guide rail (14) and is connected to the guide rail (14).

3. The antifreeze natural gas pipeline structure according to claim 2 is characterized in that: The limiting groove (15) and the guide rail (14) are arranged vertically.

4. The antifreeze natural gas pipeline structure according to claim 2 is characterized in that: A limiting groove (17) is fixed on the outer surface of the support member outside the limiting groove (15); an extension ring (16) is fixed on the movable column (20); a limiting protrusion (18) matching the limiting groove (17) is fixed on the extension ring (16); an extension column is fixed outside the movable column (20); when the protective sleeve (7) moves axially along the limiting groove (15), the two ends of the protective sleeve (7) do not separate from the annular grooves (6) on both sides.

5. The antifreeze natural gas pipeline structure according to claim 2 is characterized in that: The limiting structure also includes a plurality of limiting arc grooves arranged in an annular manner and opened on the inner wall of the annular groove (6); a steel ball is connected to the outer wall of the protective sleeve (7) via an elastic member; the steel ball is placed in the limiting arc groove to achieve rotation limiting.

6. The antifreeze natural gas pipeline structure according to claim 1, characterized in that: The upper tube body (2) and the lower tube body (3) are fixed by clamping.

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