Anti-freezing and anti-blocking device for natural gas production pipeline

Abstract

The utility model discloses an anti-freezing and anti-blocking device for a natural gas production pipeline, which belongs to the technical field of natural gas pipeline protection and comprises a left shell and a right shell, the left shell is in pin joint with the right shell, pipelines formed by the left shell and the right shell are buckled during assembly, heat-insulating cotton is fixedly mounted on the inner sides of the left shell and the right shell, and the heat-insulating cotton is fixedly mounted on the inner side of the right shell. An air bag cushion is fixedly mounted on the inner side of the heat preservation cotton, a graphene heating soft sheet is fixedly mounted on the inner side of the air bag cushion, and the graphene heating soft sheet is attached to the outer wall of an external natural gas production pipeline, so that during use, through the air bag cushion, air cushion isolation is formed, and the attaching effect between the graphene heating soft sheet and the gas production pipeline is improved; the anti-freezing and anti-blocking device for the gas production pipeline has the advantages that the anti-freezing and anti-blocking device is simple in structure and convenient to operate, the external environment is conveniently isolated through the heat preservation cotton, the gas production pipeline is heated through the graphene heating soft sheet to achieve the anti-freezing and anti-blocking effect, splicing and connecting are conducted in a pin joint and buckle joint mode, and the device can be conveniently and rapidly assembled on the gas production pipeline.

Description

Technical Field

[0001] This utility model specifically relates to a device for preventing freezing and blockage in natural gas extraction pipelines, belonging to the field of natural gas pipeline protection technology. Background Technology

[0002] Natural gas pipelines are pipelines that transport natural gas (including associated gas from oil fields) from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also called gas transmission pipelines. Natural gas extraction pipelines are mainly used at the extraction sites, transporting natural gas from underground to the surface. These pipelines contain a significant amount of associated gas, which contains a large amount of water vapor. Due to changes in flow patterns and ambient temperature, condensate water will form inside the pipeline. In low-temperature environments, this water gradually accumulates and freezes, causing the extraction pipeline to freeze and blockage, thus hindering gas transmission. Currently, to avoid freezing and blockage, the most common method is to wrap the outside of the pipeline with insulation cotton to isolate the external environment from the inside of the extraction pipeline. However, when used in low-temperature environments for a long time, the insulation performance of the insulation cotton will gradually decrease. Moreover, the current insulation cotton is mostly installed by bolts for fastening, which is cumbersome and not convenient for quick assembly when wrapping the extraction pipeline. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a natural gas extraction pipeline anti-freezing device, which can quickly wrap the extraction pipeline, facilitate operation, and make it easy to heat and prevent freezing.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a natural gas extraction pipeline anti-freezing and anti-blocking device, comprising a left shell and a right shell, wherein the left shell and the right shell are pin-connected. During assembly, the pipeline formed by the left shell and the right shell is interlocked. Insulation cotton is fixedly installed on the inner side of the left shell and the right shell, and an airbag is fixedly installed on the inner side of the insulation cotton. A graphene heating element is fixedly installed on the inner side of the airbag. The graphene heating element is in contact with the outer wall of the external natural gas extraction pipeline. In use, the left shell and the right shell are installed step by step from one end of the extraction pipeline. When installing a set of left shells and right shells, the left shell and... The right-side shells are interlocked to cover the gas sampling pipeline. When installing the next set of left and right shells, they are interlocked with the previous set, thus reducing gaps during connection and facilitating installation without the need for bolts. After connection, the insulation cotton and airbag pads isolate the internal and external temperatures of the gas sampling pipeline. Inflating the airbag pads not only achieves air isolation but also improves the fit between the graphene heating element and the gas sampling pipeline. When the external temperature is low, activating the graphene heating element heats the gas sampling pipeline, improving the anti-freezing and anti-blocking effect.

[0005] Furthermore, both the left and right shells are arc-shaped structures, forming a cylindrical structure between them, which facilitates the covering of the external gas extraction pipeline.

[0006] Furthermore, an inflation / deflation nozzle is fixedly installed on the middle position of the outer side of the left and right shells. One end of the inflation / deflation nozzle passes through the insulation cotton and is connected to the airbag pad. The inflation / deflation nozzle facilitates the inflation of the airbag pad, improving the air isolation effect and the adhesion between the graphene heating pad and the outer wall of the gas collection pipe.

[0007] Furthermore, electrical connectors are fixedly installed on the upper part of the outer side of both the left and right housings. One end of the electrical connector is electrically connected to the graphene heating element, which facilitates the connection between the external circuit and the graphene heating element, and makes it convenient to heat the gas sampling pipeline.

[0008] Furthermore, the upper and lower ends of the left housing are both fixedly mounted with pin holes in an array, and one side of the right housing is pinned to the fixed plate, which facilitates pinning when connecting the left housing and the right housing.

[0009] Furthermore, the upper and lower ends of the right housing are fixedly mounted with mounting ears in an array. Each mounting ear has a rod that matches the pin hole on the fixing plate. One end of the rod is rotatably mounted with a pin. During connection, the pin is first rotated to be parallel to the rod. The rod passes through the pin hole on the fixing plate through the rod. Then the pin is rotated to prevent it from disengaging from the fixing plate, thus facilitating rapid assembly.

[0010] Furthermore, each of the left and right housings has a plug-in slot at one end, and a plug-in plate that matches the plug-in slot is fixedly installed at the other end of the left and right housings. During assembly, the plug-in plate in one group is inserted into the plug-in slot in the other group to reduce gaps and improve the isolation effect between the gas sampling pipeline and the external environment.

[0011] Furthermore, the left and right housings are fixedly equipped with locking tongues in a circumferential array at one end of the insertion slot, and the other end of the left and right housings are fixedly equipped with locking buckles in a circumferential array. One end of the locking buckle is engaged with the locking tongue. By using the locking tongue and the locking buckle, it is easy to assemble and convenient to operate.

[0012] Beneficial effects: During use, the airbag not only forms an air cushion for isolation but also improves the fit between the graphene heating pad and the gas collection pipeline. The insulation cotton facilitates isolation from the external environment. The graphene heating pad heats the gas collection pipeline to prevent freezing and blockage. The assembly and connection are made by using pins and snaps, which facilitates quick assembly onto the gas collection pipeline and makes operation convenient. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention during assembly;

[0014] Figure 2 This is a schematic diagram of the structure when the left and right shells of this utility model are connected;

[0015] Figure 3 This is a structural schematic diagram of the left and right shells of this utility model from another angle when they are connected;

[0016] Figure 4 This is a schematic diagram of the structure of the left shell in this utility model;

[0017] Figure 5 This is a schematic diagram of the right shell of this utility model.

[0018] In the diagram: 1. Left shell; 2. Right shell; 3. Insulation cotton; 4. Airbag cushion; 5. Graphene heating pad; 6. Inflation / depression nozzle; 7. Electrical connector; 8. Fixing plate; 9. Fixing ear; 10. Insert rod; 11. Pin rod; 12. Insertion slot; 13. Insertion plate; 14. Locking tongue; 15. Locking buckle. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 As shown, a natural gas extraction pipeline anti-freezing device includes a left shell 1 and a right shell 2, which are pin-connected. During assembly, the pipe formed by the left shell 1 and right shell 2 is interlocked. Insulation cotton 3 is fixedly installed inside the left shell 1 and right shell 2, and an airbag 4 is fixedly installed inside the insulation cotton 3. A graphene heating element 5 is fixedly installed inside the airbag 4, and the graphene heating element 5 is fitted against the outer wall of the external natural gas extraction pipeline. In use, the appropriate number of left shells 1 and right shells 2 are selected according to the length of the external extraction pipeline. The number of left shells 1 and right shells 2 is the same. The left shells 1 and right shells 2 are installed step by step from one end of the extraction pipeline. When installing one set of left shells 1 and right shells 2, the left shell 1... The left and right shells 2 are interlocked to cover the gas collection pipeline. When installing the next set of left and right shells 1 and 2, they are interlocked with the previous set of left and right shells 1 and 2, thereby reducing the gap during connection and facilitating installation without the need for bolts. This makes operation convenient and allows for quick assembly. After connection, the insulation cotton 3 and airbag 4 isolate the internal temperature of the gas collection pipeline from the external temperature. Inflating the airbag 4 not only achieves air isolation but also improves the adhesion between the graphene heating pad 5 and the gas collection pipeline. When the external temperature is low, the graphene heating pad 5 is turned on to heat the gas collection pipeline, preventing the condensate inside the gas collection pipeline from freezing and improving the anti-freezing effect.

[0021] As a technical optimization of this utility model, both the left shell 1 and the right shell 2 are arc-shaped structures, forming a cylindrical structure between them, which facilitates the covering of the external gas sampling pipeline and improves the protection effect. An inflation / deflation nozzle 6 is fixedly installed on the middle position of the outer side of the left shell 1 and the right shell 2. One end of the inflation / deflation nozzle 6 passes through the insulation cotton 3 and is connected to the airbag pad 4. Through the inflation / deflation nozzle 6, it is easy to inflate the inside of the airbag pad 4, improve the air isolation effect, and improve the adhesion between the graphene heating soft sheet 5 and the outer wall of the gas sampling pipeline. An electrical connector 7 is fixedly installed on the upper end of the outer side of both the left shell 1 and the right shell 2. One end of the electrical connector 7 is electrically connected to the graphene heating soft sheet 5. The electrical connector 7 adopts a threaded buckle waterproof connector, which facilitates the connection between the external circuit and the graphene heating soft sheet 5, making it convenient to heat the gas sampling pipeline and improve the anti-freezing and anti-blocking effect.

[0022] As a technical optimization of this utility model, the upper and lower ends of the left shell 1 are fixedly mounted with fixing plates 8 having pin holes in an array. One side of the right shell 2 is pinned to the fixing plate 8. When connecting the left shell 1 and the right shell 2, it is convenient to make pin connections and improve the ease of connection. The upper and lower ends of the right shell 2 are fixedly mounted with fixing ears 9 in an array. The fixing ears 9 are fixedly mounted with insert rods 10 that match the pin holes on the fixing plates 8. One end of the insert rod 10 is rotatably mounted with a pin rod 11. When connecting, the pin rod 11 is first rotated to a state parallel to the insert rod 10. Through the insert rod 10, the pin rod 11 passes through the pin hole on the fixing plate 8. Then, the pin rod 11 is rotated so that the pin rod 11 and the insert rod 10 are distributed in a cross shape, thereby preventing the pin rod 11 from separating from the fixing plate 8 and facilitating quick assembly.

[0023] As a technical optimization of this utility model, each of the left shell 1 and the right shell 2 has a plug-in groove 12 at one end, and a plug-in plate 13 that matches the plug-in groove 12 is fixedly installed at the other end of the left shell 1 and the right shell 2. During assembly, the plug-in plate 13 in one group is inserted into the plug-in groove 12 in the other group, thereby improving the connection effect, reducing gaps, and improving the isolation effect between the gas sampling pipeline and the external environment. Locking tongues 14 are fixedly installed in a circumferential array at one end of the plug-in groove 12 on the left shell 1 and the right shell 2, and locking buckles 15 are fixedly installed in a circumferential array at the other end of the left shell 1 and the right shell 2. One end of the locking buckle 15 is engaged with the locking tongue 14. By using the locking tongue 14 and the locking buckle 15, it is easy to assemble during assembly, and the covering effect of the gas sampling pipeline is improved, making operation convenient.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A freeze plug for a natural gas gathering pipeline, comprising: The system includes a left shell (1) and a right shell (2), which are connected by a pin. A fixing plate (8) is installed on the left shell (1), and a fixing ear (9) is installed on the right shell (2). A plug rod (10) is installed on the fixing ear (9). A pin rod (11) is rotatably installed on one end of the plug rod (10). The plug rod (10) and the pin rod (11) are pinned to the fixing plate (8). During assembly, the pipe formed by the left shell (1) and the right shell (2) are interlocked to form a cylindrical structure. Insulation cotton (3) is fixedly installed on the inner side of the left shell (1) and the right shell (2). An airbag cushion (4) is fixedly installed on the inner side of the insulation cotton (3). A graphene heating soft sheet (5) is fixedly installed on the inner side of the airbag cushion (4). The graphene heating soft sheet (5) is attached to the outer wall of the external natural gas extraction pipeline.

2. The natural gas production pipeline freeze plug of claim 1, wherein: Both the left housing (1) and the right housing (2) have a plug-in slot (12) at one end, and a plug-in plate (13) that matches the plug-in slot (12) is fixedly installed at the other end of the left housing (1) and the right housing (2).

3. The natural gas gathering pipeline freeze plug of claim 2, wherein: Locking tongues (14) are fixedly installed in a circumferential array at one end of the insertion slot (12) on the left housing (1) and the right housing (2), and locking buckles (15) are fixedly installed in a circumferential array at the other end of the left housing (1) and the right housing (2), with one end of the locking buckle (15) engaging with the locking tongues (14).

4. The natural gas gathering pipeline freeze plug of claim 1, wherein: Both the left shell (1) and the right shell (2) are arc-shaped structures, and a cylindrical structure is formed between the left shell (1) and the right shell (2).

5. The natural gas gathering pipeline freeze plug of claim 1, wherein: The fixing pieces (8) are arranged in an array at the upper and lower ends of the left housing (1), and the fixing pieces (8) are fixing pieces with pin holes.

6. The natural gas gathering pipeline freeze plug of claim 5, wherein: The fixing ears (9) are arranged in an array at the upper and lower ends of the right housing (2), and the insert (10) and pin (11) on the fixing ears (9) match the pin holes on the fixing plate (8).

7. The natural gas gathering pipeline freeze plug of claim 1, wherein: An inflation / deflation nozzle (6) is fixedly installed on the middle position of the outer side of the left shell (1) and the right shell (2). One end of the inflation / deflation nozzle (6) passes through the insulation cotton (3) and is connected to the airbag cushion (4).

8. The natural gas gathering pipeline freeze plug of claim 1, wherein: Electrical connectors (7) are fixedly installed on the upper part of the outer side of both the left shell (1) and the right shell (2), and one end of the electrical connector (7) is electrically connected to the graphene heating sheet (5).

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