Safety protection device for natural gas long-distance pipeline

Abstract

The utility model discloses a natural gas long-distance pipeline safety protection device, which relates to the field of natural gas pipeline protection, and comprises a base, an upper sheath and a lower sheath, the two ends of the upper sheath and the lower sheath are fixedly provided with ear plates, and the upper surface of each ear plate is provided with a plurality of through holes for bolts to penetrate through. An angle adaptation structure is arranged between the base and the lower sheath, the angle adaptation structure comprises a fixing column, two fixing seats and a sliding rail, and the fixing column is fixedly installed in the center of the upper portion of the base. According to the safety protection device for the natural gas long-distance pipeline, outward expansion of the inflation bag is limited through the upper protective sleeve and the lower protective sleeve, so that the inflation bag can be better wrapped outside the natural gas pipeline after being filled with foam glue, the wrapping effect is good, the safety protection device can also be suitable for the uneven outer wall of the pipeline, and the safety of the natural gas long-distance pipeline is improved. And secondly, the upper sheath and the lower sheath can protect the inflatable bag, so that the service life of the inflatable bag is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of natural gas pipeline protection, and in particular to a safety protection device for long-distance natural gas pipelines. Background Technology

[0002] Natural gas long-distance pipelines are pipelines that transport natural gas over long distances, usually involving cross-provincial and municipal regions. Natural gas pipelines can be installed in two ways: buried underground and supported on the ground. Natural gas pipelines supported on the ground are easily exposed to wind and sun, and the connections between pipelines are easily corroded and damaged. Therefore, protective devices are required for protection.

[0003] Chinese patent CN216078591U discloses a safety protection device for long-distance natural gas pipelines in the field of natural gas pipeline technology. The device includes two sets of bases, with an outer support column fixedly connected to the top of each base. An inner support column is movably inserted into the top of each outer support column. An installation plate is fixedly connected to the top of each inner support column. An adjustment assembly is provided on the installation plate, and two movable plates are provided on the top of the adjustment assembly. Multiple connecting rods are symmetrically fixedly connected to opposite sides of each movable plate. A connecting plate is fixedly connected to one side of each connecting rod. A buffer plate is fixedly connected to the inner side of the connecting plate. Multiple gas springs are fixedly connected to one side of the buffer plate. A clamping plate is fixedly connected to one side of each gas spring. An alarm and a natural gas detector are fixedly installed on the top of the installation plate. This invention solves the problem of poor strength at existing natural gas pipeline connections, making them less prone to breakage under external force. It also provides an alarm signal for natural gas leaks, reducing the occurrence of safety hazards.

[0004] However, existing protection devices for long-distance natural gas pipelines are inconvenient to adjust according to the pipeline's inclination, making them unsuitable for different inclination conditions of natural gas pipelines. Moreover, traditional protection devices all use mechanical structures to change the inner diameter to adapt to the pipeline diameter, but this requires high precision and has poor coverage, resulting in less than ideal protection performance. Utility Model Content

[0005] The main purpose of this utility model is to provide a safety protection device for long-distance natural gas pipelines, which can effectively solve the technical problems in the background technology that cannot adapt to different inclinations of natural gas pipelines and also have poor coverage effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A safety protection device for a long-distance natural gas pipeline includes a base, an upper sheath, and a lower sheath. Ear plates are fixedly installed at both ends of the upper and lower sheaths, and the upper surface of each ear plate has several through holes for bolts. An angle-adapting structure is provided between the base and the lower sheath. The angle-adapting structure includes a fixed column, two fixed seats, and a slide rail. The fixed column is fixedly installed at the upper center of the base, the two fixed seats are symmetrically installed at the upper edge of the base, and the slide rail is fixedly installed at the bottom of the lower sheath. A connecting rod is rotatably connected to the outside of each of the two fixed seats. A slide block is rotatably connected to the top of one connecting rod, and the top of the other connecting rod is fixedly connected to the slide rail.

[0008] As a further embodiment of this utility model, a slider is fixedly installed on the upper part of the slide block, and the slider is slidably connected to the groove on the bottom surface of the slide rail.

[0009] As a further embodiment of this utility model, a first rotating shaft is rotatably connected to one side of the connecting rod connected to the slide block, and a second rotating shaft is rotatably connected to one side of the fixed column. Two screws are rotatably connected on the axis of the second rotating shaft, and both screws are threadedly connected to the first rotating shaft. A nut is threadedly connected to the outside of the screws at the front of the first rotating shaft.

[0010] As a further embodiment of this utility model, the upper sheath and the lower sheath form a cylindrical structure, and sealing grooves are provided on both ends of the upper sheath, and sealing arc strips are integrally connected to both ends of the lower sheath, with the sealing arc strips inserted into and connected to the sealing grooves.

[0011] As a further embodiment of this utility model, an air bladder is provided between the upper and lower sheaths, and an air nozzle is fixedly connected to the front edge of the air bladder.

[0012] As a further embodiment of this utility model, the air bladder is filled with foam, and an adhesive part is provided between the two ends of the air bladder. The adhesive part is composed of a hook and loop fastener side and a loop and loop fastener side.

[0013] The beneficial effects of this utility model are as follows:

[0014] By setting an angle-adaptive structure, the upper and lower sheaths can be adjusted to different tilt angles, thus easily adapting to long-distance natural gas pipelines at different tilt angles, with a wide range of applications;

[0015] By setting up an inflatable bladder, an upper sheath, and a lower sheath, the expansion of the inflatable bladder is restricted. This allows the inflatable bladder to better cover the outside of the natural gas pipeline after being filled with foam adhesive, resulting in a good covering effect. It is also suitable for uneven pipeline walls. Furthermore, the upper and lower sheaths can also protect the inflatable bladder and extend its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a safety protection device for long-distance natural gas pipelines according to the present invention;

[0017] Figure 2 This is a side view of a safety protection device for a long-distance natural gas pipeline according to the present invention;

[0018] Figure 3 This is a split view of the upper and lower sheaths of a safety protection device for long-distance natural gas pipelines according to this utility model;

[0019] Figure 4 This is a demonstration diagram of the adjustment of a safety protection device for long-distance natural gas pipelines according to this utility model;

[0020] Figure 5 This is a side view of the adjustment of a safety protection device for a long-distance natural gas pipeline according to this utility model.

[0021] In the diagram: 1. Base; 2. Upper sheath; 3. Lower sheath; 4. Ear plate; 5. Angle adaptation structure; 6. Fixing column; 7. Fixing seat; 8. Connecting rod; 9. First rotating shaft; 10. Second rotating shaft; 11. Slide rail; 12. Screw; 13. Nut; 14. Inflatable bladder; 15. Air nozzle; 16. Adhesive part; 17. Sealing arc strip. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Combination Figures 1-5 A safety protection device for a long-distance natural gas pipeline includes a base 1, an upper sheath 2 and a lower sheath 3. Both ends of the upper sheath 2 and the lower sheath 3 are fixedly installed with ear plates 4, and the upper surface of the ear plates 4 is provided with several through holes for through bolts. An angle adaptation structure 5 is provided between the base 1 and the lower sheath 3.

[0025] See Figure 2 and Figure 4Furthermore, the angle-adaptive structure 5 includes a fixed column 6, two fixed seats 7, and a slide rail 11. The fixed column 6 is fixedly installed at the upper center of the base 1, the two fixed seats 7 are symmetrically installed at the upper edge of the base 1, and the slide rail 11 is fixedly installed at the bottom of the lower sleeve 3. Both fixed seats 7 are rotatably connected to a connecting rod 8 on their exterior. The top of one connecting rod 8 is rotatably connected to a slide block, and the top of the other connecting rod 8 is fixedly connected to the slide rail 11.

[0026] Specifically, the angle-adaptive structure 5 can adjust the tilt angle of the upper sheath 2 and the lower sheath 3, thereby adapting to the inclination of the long-distance natural gas pipeline, facilitating matching and installation, and improving applicability.

[0027] Example 2

[0028] See Figure 2 Furthermore, based on Embodiment 1, a slider is fixedly installed on the upper part of the slide block, and the slider is slidably connected to the groove on the bottom surface of the slide rail 11. A first rotating shaft 9 is rotatably connected to one side of the connecting rod 8 connected to the slide block, and a second rotating shaft 10 is rotatably connected to one side of the fixed column 6. Two screws 12 are rotatably connected on the axis of the second rotating shaft 10. Both screws 12 are threadedly connected to the first rotating shaft 9, and a nut 13 is threadedly connected to the outside of the screws 12 at the front of the first rotating shaft 9. The upper sheath 2 and the lower sheath 3 form a cylindrical structure, and sealing grooves are opened on both ends of the upper sheath 2. Sealing arc strips 17 are integrally connected to both ends of the lower sheath 3, and the sealing arc strips 17 are inserted into the sealing grooves.

[0029] Specifically, when the two screws 12 are rotated, the screws 12 drive the first rotating shaft 9 to move, thereby driving one of the connecting rods 8 to move. The connecting rod 8 drives the lower sheath 3 to move through the slide and rotates using the other connecting rod 8. During the rotation, the slide and the connecting rod 8 connected to it, as well as the connecting rod 8 and one of the fixed seats 7, are forced to rotate simultaneously, thereby adjusting the angle of the lower sheath 3. Since the upper sheath 2 needs to be connected to the lower sheath 3 through the through hole, the space used by the upper sheath 2 and the lower sheath 3 to cover the natural gas pipeline can be adjusted to tilt to different angles.

[0030] Example 3

[0031] See Figure 3 Furthermore, based on Embodiment 1 and Embodiment 2, an air bladder 14 is provided between the upper sheath 2 and the lower sheath 3, and an air nozzle 15 is fixedly connected to the front edge of the air bladder 14. The interior of the air bladder 14 is filled with foam, and an adhesive part 16 is provided between the two ends of the air bladder 14. The adhesive part 16 is composed of a hook and loop fastener surface and a loop and loop fastener velvet surface.

[0032] Specifically, the airbag 14 can be fitted onto the connection of the natural gas pipeline through the adhesive part 16, and then foam is injected into it through the gas nozzle 15. The expansion of the foam, combined with the extensibility of the airbag 14 and the limiting effect of the upper sheath 2 and the lower sheath 3, can stably cover the natural gas pipeline and also adapt to the unevenness of the natural gas pipeline connection.

[0033] It should be noted that this utility model is a safety protection device for long-distance natural gas pipelines. In use, firstly, depending on the location and inclination angle of the natural gas pipeline, the two screws 12 are rotated. The screws 12 drive the first rotating shaft 9 to move, thereby driving one of the connecting rods 8 to move. The connecting rod 8 drives the lower sheath 3 to move through the slide and rotates using the other connecting rod 8. During the rotation, the slide and the connecting rod 8 connected to it, as well as the connecting rod 8 and one of the fixed seats 7, are forced to rotate simultaneously, thereby adjusting the angle of the lower sheath 3. After adjustment, the base 1 is cast and fixed below the pipeline. Then, the air bladder 14 is attached to the outside of the pipeline through the Velcro of the adhesive part 16. The upper sheath 2 and the lower sheath 3 are then placed over the air bladder 14 and fixed with bolts. After fixing, expanding foam is injected through the air nozzle 15. When the expanding foam is not completely dry, the bolts between the upper sheath 2 and the lower sheath 3 are rotated again to reduce the space between the upper sheath 2 and the lower sheath 3 and the pipeline, thereby improving the coverage effect.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A safety protection device for a long-distance natural gas pipeline, comprising a base (1), an upper sheath (2), and a lower sheath (3), wherein ear plates (4) are fixedly installed at both ends of the upper sheath (2) and the lower sheath (3), and the upper surface of the ear plates (4) is provided with a plurality of through holes for through bolts, characterized in that: An angle adaptation structure (5) is provided between the base (1) and the lower sleeve (3). The angle adaptation structure (5) includes a fixed column (6), two fixed seats (7) and a slide rail (11). The fixed column (6) is fixedly installed at the upper center of the base (1). The two fixed seats (7) are symmetrically installed at the upper edge of the base (1). The slide rail (11) is fixedly installed at the bottom of the lower sleeve (3). Both fixed seats (7) are rotatably connected to connecting rods (8). The top of one connecting rod (8) is rotatably connected to a slide block, and the top of the other connecting rod (8) is fixedly connected to the slide rail (11).

2. The safety protection device for a long-distance natural gas pipeline according to claim 1, characterized in that: A slider is fixedly installed on the upper part of the slide block, and the slider is slidably connected to the groove on the bottom surface of the slide rail (11).

3. A safety protection device for a long-distance natural gas pipeline according to claim 2, characterized in that: The connecting rod (8) connected to the slide is rotatably connected to a first rotating shaft (9) on one side, and a second rotating shaft (10) is rotatably connected to one side of the fixed column (6). Two screws (12) are rotatably connected on the axis of the second rotating shaft (10). Both screws (12) are threaded to the first rotating shaft (9), and a nut (13) is threaded to the outside of the screws (12) at the front of the first rotating shaft (9).

4. A safety protection device for a long-distance natural gas pipeline according to claim 1, characterized in that: The upper sheath (2) and the lower sheath (3) form a cylindrical structure. Both ends of the upper sheath (2) are provided with sealing grooves, and both ends of the lower sheath (3) are integrally connected with sealing arc strips (17). The sealing arc strips (17) are inserted into the sealing grooves.

5. A safety protection device for a long-distance natural gas pipeline according to claim 1, characterized in that: An air bladder (14) is provided between the upper sheath (2) and the lower sheath (3), and an air nozzle (15) is fixedly connected to the front edge of the air bladder (14).

6. A safety protection device for a long-distance natural gas pipeline according to claim 5, characterized in that: The air bladder (14) is filled with foam, and an adhesive part (16) is provided between the two ends of the air bladder (14). The adhesive part (16) is composed of a hook and loop fastener and a loop and loop fastener plush side.

Images