Low-temperature compensation shockproof support for LNG (liquefied natural gas) transportation pipeline

Abstract

The utility model belongs to the technical field of pipeline supports, and particularly relates to an LNG (liquefied natural gas) transportation pipeline low-temperature compensation shockproof support which comprises a support body, a vertical support is connected to the middle of the top surface of the support body, a placing block is connected to the inner side surface of the bottom end of the vertical support, and a movable clamping block is connected to the inner side surface of the vertical support at the top end of the placing block. And an arc-shaped groove is formed in the top surface of the placement block. Through the mutual cooperation of the vertical frame, the placing block, the movable clamping block, the sliding rod, the movable plate, the first spring and the screw rod, when the pipeline shrinks due to low temperature, the contraction force of the pipeline can push the movable clamping block to move upwards, the first spring can be compressed, a buffer space is provided for the contraction of the pipeline, and the safety of the pipeline is improved. The position of the movable clamping block can be adjusted in a self-adaptive mode along with contraction of the pipeline, large position deviation of the pipeline on the support due to contraction is avoided, uneven local stress of the support is prevented, fatigue damage of the support is reduced, and the service life of the support is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline support technology, specifically relating to a cryogenic compensation and shockproof support for LNG transportation pipelines. Background Technology

[0002] LNG is an abbreviation for liquefied natural gas. It is an energy product that is made by purifying, cooling and liquefying natural gas, turning it into a liquid state under normal pressure.

[0003] LNG transport pipelines are specialized pipelines used to transport liquefied natural gas, playing a crucial role in the storage, transportation, and application of LNG. During operation, operators sometimes use lifting supports to support the LNG transport pipelines. However, because LNG is at a low temperature, the pipeline may contract, causing it to shift off the support's position. This results in uneven stress on the supports, accelerating fatigue damage.

[0004] Therefore, this utility model provides a cryogenic compensation and shockproof support for LNG transportation pipelines to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a cryogenic compensation and shockproof support for LNG transportation pipelines, which aims to solve the problem that existing LNG transportation pipelines may shrink during use due to the low temperature of LNG, causing the pipeline to shift on the support, resulting in uneven local stress on the support and accelerating fatigue damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cryogenic compensation and shockproof support for LNG transport pipelines, comprising a frame, a vertical frame connected to the middle of the top surface of the frame, a placement block connected to the inner surface of the bottom end of the vertical frame, a movable clamping block connected to the inner surface of the vertical frame at the top of the placement block, an arc-shaped groove formed on the top surface of the placement block, an arc-shaped groove also formed on the bottom surface of the movable clamping block, sliding rods symmetrically connected to the top surface of the movable clamping block, a movable plate penetrating one end of the sliding rod, and a vertical frame penetrating the other end of the sliding rod, a first spring connecting the movable clamping block and the movable plate, with one end of the sliding rod penetrating inside the first spring.

[0007] As a preferred embodiment of the cryogenic compensation and shockproof support for LNG transport pipelines of this utility model, a screw is threaded through the middle of the top surface of the support frame, and a bearing is connected to the outer surface of the other end of the screw. The bearing is embedded in the top surface of the movable plate.

[0008] As a preferred embodiment of the cryogenic compensation and shockproof support for LNG transport pipelines of this utility model, the sliding rod and the movable plate form a sliding connection, the sliding rod and the upright form a sliding connection, and the movable plate and the upright form a sliding connection.

[0009] As a preferred embodiment of the cryogenic compensation and shockproof support for LNG transport pipelines of this utility model, the top surface of the screw is connected to a screwing block, and the outer surface of the screwing block is provided with an arc-shaped groove in a ring array.

[0010] As a preferred embodiment of the cryogenic compensation and shockproof support for LNG transport pipelines of this utility model, a movable rod is connected to the bottom surface of the placement block, and a second spring is connected through one end of the movable rod. The second spring is connected inside the mounting groove, which is located on the top surface of the frame.

[0011] As a preferred embodiment of the cryogenic compensation and shockproof support for LNG transport pipelines of this utility model, the other end of the movable rod passes through the frame and is connected to a rubber ring, which is connected to the inner surface of the placement groove, and the placement groove is opened on the bottom surface of the frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes the coordinated operation of a support frame, a placement block, a movable clamping block, a sliding rod, a moving plate, a first spring, and a screw. The LNG transport pipeline is placed between the arc-shaped grooves on the placement block and the movable clamping block. Rotating the screw brings the movable clamping block into contact with the pipeline, and the moving plate compresses the first spring, allowing the movable clamping block to fix the LNG transport pipeline to the placement block. When the pipeline contracts due to low temperatures, the contraction force pushes the movable clamping block upwards, compressing the first spring and providing a buffer space for the pipeline's contraction. This allows the movable clamping block to adaptively adjust its position to follow the pipeline's contraction, preventing significant positional displacement of the pipeline on the support due to contraction, preventing uneven stress on the support, reducing fatigue damage, and extending the support's service life.

[0014] This invention utilizes the cooperation of a movable rod, a second spring, and a rubber ring. When vibration occurs during the use of the LNG transport pipeline, the placement block will drive the movable rod to move on the frame, causing the placement block to compress the second spring. At this time, the second spring can absorb and buffer the vibration energy. Simultaneously, one end of the movable rod will also move in the rubber ring. By utilizing the good elasticity and damping characteristics of the rubber ring, the vibration energy is further attenuated, thereby reducing the impact of vibration on the support. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate 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, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0018] Figure 3 This is a schematic diagram of the partial explosion structure of this utility model;

[0019] Figure 4 This is a bottom view of the partially exploded structure of the movable rod of this utility model.

[0020] In the diagram: 1. Frame; 2. Stand; 3. Placement block; 4. Movable clamping block; 5. Arc groove; 6. Slide rod; 7. Moving plate; 8. First spring; 9. Screw; 10. Bearing; 11. Tightening block; 12. Movable rod; 13. Mounting groove; 14. Second spring; 15. Placement groove; 16. Rubber ring. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 The present invention provides the following technical solution: a cryogenic compensation and shockproof support for LNG transport pipelines, comprising a frame 1, a vertical frame 2 connected to the middle of the top surface of the frame 1, a placement block 3 connected to the inner surface of the bottom end of the vertical frame 2, a movable clamping block 4 connected to the inner surface of the vertical frame 2 at the top of the placement block 3, an arc-shaped groove 5 opened on the top surface of the placement block 3, an arc-shaped groove 5 also opened on the bottom surface of the movable clamping block 4, a sliding rod 6 symmetrically connected to the top surface of the movable clamping block 4, a movable plate 7 penetratingly connected to one end of the sliding rod 6, and a vertical frame 2 penetratingly connected to the other end of the sliding rod 6, a first spring 8 connected between the movable clamping block 4 and the movable plate 7, and one end of the sliding rod 6 penetratingly connected inside the first spring 8.

[0023] Preferably, a screw 9 is threaded through the middle of the top surface of the support frame 2, and a bearing 10 is connected to the outer surface of the other end of the screw 9. The bearing 10 is embedded in the top surface of the movable plate 7.

[0024] In actual use, when the screw 9 rotates in the bearing 10, the position of the screw 9 will change on the stand 2. At this time, the screw 9 will drive the moving plate 7 to move inside the stand 2.

[0025] Preferably, the slide rod 6 and the movable plate 7 are connected in a sliding manner, the slide rod 6 and the upright 2 are connected in a sliding manner, and the movable plate 7 and the upright 2 are connected in a sliding manner.

[0026] In practical use, the screw 9 can drive the movable plate 7 to move inside the support 2, and the slide rod 6 will also move on the movable plate 7 and the support 2 to ensure the movement trajectory of the movable plate 7. At the same time, the slide rod 6 can also restrict the position of the first spring 8, so that the first spring 8 always remains in a vertical state, and avoids the first spring 8 from tilting or twisting during compression or tension, which would affect its elastic performance. In this way, when the movable clamping block 4 moves up and down under the contraction force of the pipeline or the squeezing force during installation, the first spring 8 extends and retracts along the axis of the slide rod 6, ensuring that the spring force can act evenly and stably on the movable clamping block 4, so that the movable clamping block 4 is subjected to balanced force during adjustment and compensation, and avoids the situation where the pipeline is subjected to excessive pressure or is not fixed firmly due to uneven spring force.

[0027] Preferably, a screw 9 has a screwing block 11 connected to its top surface, and the outer surface of the screwing block 11 has an arc-shaped groove arranged in a ring array.

[0028] In practical use, the arc-shaped groove can increase the friction between the operator's hand and the turning block 11, so that the operator can more easily turn the turning block 11, allowing the turning block 11 to drive the screw 9 to rotate in the bearing 10.

[0029] Preferably, a movable rod 12 is connected to the bottom surface of the placement block 3, and a second spring 14 is connected through one end of the movable rod 12. The second spring 14 is connected inside the mounting groove 13, which is opened on the top surface of the frame 1.

[0030] In practical use, the movable rod 12 at the bottom of the placement block 3 can slide on the frame 1 to ensure the movement trajectory of the placement block 3, while restricting the position of the second spring 14 in the mounting groove 13. When the placement block 3 moves, it will compress the second spring 14, causing the second spring 14 to deform elastically. When the vibration of the LNG transport pipeline is transmitted to the placement block 3, the placement block 3 will cause the second spring 14 to deform elastically, allowing the second spring 14 to convert the kinetic energy generated by the vibration into elastic potential energy. The reverse force generated by its elastic deformation cancels out the vibration impact force, greatly reducing the intensity and frequency of the vibration.

[0031] Preferably, the other end of the movable rod 12 passes through the frame 1 and is connected to a rubber ring 16. The rubber ring 16 is connected to the inner surface of the placement groove 15, which is located on the bottom surface of the frame 1.

[0032] In practical use, the other end of the movable rod 12 can pass through the rubber ring 16 in the groove 15 at the bottom of the frame 1, so that when the movable rod 12 moves on the frame 1, one end of the movable rod 12 will also move in the rubber ring 16. In this way, the rubber ring 16 can effectively absorb the vibration energy transmitted by the movable rod 12 through its own good elasticity and damping characteristics, and dissipate the kinetic energy generated by the vibration into heat energy and other forms, further attenuating the vibration amplitude.

[0033] Working principle: When using this cryogenic compensation and shockproof support for LNG transport pipelines, first, use bolts to hoist the frame 1 to the designated position. Then, pass one end of the LNG transport pipeline through the upright 2, positioning the LNG transport pipeline between the placement block 3 and the movable clamping block 4. Place the LNG transport pipeline into the arc-shaped groove 5 on the placement block 3, and then tighten the tightening block 11. This causes the tightening block 11 to drive the screw 9 to rotate within the bearing 10. The position of the screw 9 will change on the upright 2, causing the screw 9 to move the moving plate 7 within the upright 2. Simultaneously, the moving plate 7 will push the movable clamping block 4 towards the LNG transport pipeline via the first spring 8. When the top of the LNG transport pipeline enters the arc-shaped groove 5 on the movable clamping block 4, continue to control the movement of the moving plate 7, causing it to compress the first spring 8. This allows the first spring 8 to push the movable clamping block 4 into tight contact with the pipeline. At this point, the placement block 3 and the movable clamping block 4 fix the LNG transport pipeline in the arc-shaped groove 5, thus providing limiting support for the LNG transport pipeline. When the LNG... After the transport pipeline is fixed and put into use, if the pipeline shrinks due to low temperature, the shrinkage force will push the movable clamp 4 upward. At this time, the movable clamp 4 will compress the first spring 8, providing buffer space for the pipeline shrinkage. This allows the movable clamp 4 to adaptively adjust its position according to the pipeline shrinkage, so that the pipeline will not generate excessive stress due to the rigid constraint of the support during the shrinkage process. This avoids large positional displacement of the pipeline on the frame 1 due to shrinkage, prevents uneven local stress on the support, reduces fatigue damage to the support, and extends the service life of the support. Secondly, when the LNG transport pipeline vibrates during use, the placement block 3 will drive the movable rod 12 to move on the frame 1, causing the placement block 3 to squeeze the second spring 14. At this time, the second spring 14 can absorb and buffer the vibration energy through elastic deformation. At the same time, one end of the movable rod 12 will also move in the rubber ring 16. Utilizing the good elasticity and damping characteristics of the rubber ring 16, the vibration energy is further attenuated, thereby reducing the impact of vibration on the frame 1.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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. LNG transportation pipeline low-temperature compensation anti-vibration support, comprising a support body (1), characterized in that: The stand (2) top surface middle position is connected with the stand (2) bottom end inside surface and is connected with the placement block (3), the placement block (3) top end inside surface of stand (2) is connected with the movable clamp block (4), the placement block (3) top surface is provided with arc slot (5), the movable clamp block (4) bottom surface is also provided with arc slot (5), the movable clamp block (4) top surface is connected with the slide rod (6) symmetrically, the slide rod (6) one end is connected with the moving plate (7) and is connected with the stand (2) on the other end of slide rod (6), the first spring (8) is connected between movable clamp block (4) and moving plate (7), the first spring (8) inside is connected with the one end of slide rod (6).

2. The LNG transfer line cryogenic compensation hanger of claim 1, wherein: The stand (2) top surface middle position is connected with the stand (2) bottom end inside surface and is connected with the placement block (3), the placement block (3) top end inside surface of stand (2) is connected with the movable clamp block (4), the placement block (3) top surface is provided with arc slot (5), the movable clamp block (4) bottom surface is also provided with arc slot (5), the movable clamp block (4) top surface is connected with the slide rod (6) symmetrically, the slide rod (6) one end is connected with the moving plate (7) and is connected with the stand (2) on the other end of slide rod (6), the first spring (8) is connected between movable clamp block (4) and moving plate (7), the first spring (8) inside is connected with the one end of slide rod (6).

3. The LNG transfer line cryogenic compensation hanger of claim 1, wherein: The slide rod (6) and the moving plate (7) constitute sliding connection, the slide rod (6) and the stand (2) constitute sliding connection, the moving plate (7) and the stand (2) constitute sliding connection.

4. The LNG transfer line cryogenic compensation hanger of claim 2, wherein: The screw rod (9) top surface is connected with the twist block (11), the twist block (11) outer surface is provided with arc groove in annular array.

5. The LNG transfer line cryogenic compensation hanger of claim 1, wherein: The placement block (3) bottom surface is connected with the movable rod (12), one end of the movable rod (12) is connected with the second spring (14), the second spring (14) is connected in the installation groove (13) inside, the installation groove (13) is provided in the top surface of the frame body (1).

6. The LNG transfer line cryogenic compensation hanger of claim 5, wherein: The other end of the movable rod (12) is connected with the rubber ring (16) through the frame body (1), the rubber ring (16) is connected to the inside surface of the placement groove (15), and the placement groove (15) is provided in the bottom surface of the frame body (1).

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