LNG (Liquefied Natural Gas) pipeline anti-seepage structure
By arranging hollow circular plates, support plates, hollow pipes and clamping components at the LNG pipeline connections, the problem of loosening and leakage of LNG pipelines caused by vibration is solved, and the stability of pipeline connections and the safety of LNG transportation are achieved.
Patent Information
- Application Number
- CN202421409614.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-20
AI Technical Summary
During the transportation process, the flange screws are loose due to vibration, causing LNG leakage.
A LNG pipeline anti -leakage structure is designed. By setting up empty round boards, support plates, hollow pipes, and clamping components at the connection of the LNG pipeline to ensure the stable connection of the LNG pipeline, to avoid loosening.
It effectively avoids loosening and leakage of LNG pipelines, improves the stability of pipeline connections, and ensures safe transportation of LNG.
Smart Images
Figure CN222392205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LNG pipelines, in particular to an anti-leakage structure for LNG pipelines. Background Art
[0002] LNG refers to liquefied natural gas, which is mainly composed of methane and is recognized as the cleanest fossil energy on earth. It is colorless, odorless, non-toxic and non-corrosive. Its volume is about 1 / 625 of the volume of the same amount of gaseous natural gas, and the mass of liquefied natural gas is only about 45% of the same volume of water. Its manufacturing process is to purify the natural gas produced by the gas field first, and then transport it by liquefied natural gas ship after a series of ultra-low temperature liquefaction. After burning, liquefied natural gas has very little air pollution and releases a lot of heat, so liquefied natural gas is a relatively advanced energy source. LNG pipeline refers to the pipeline used to transport LNG.
[0003] The two existing LNG pipelines are usually connected by flanges. During the LNG transportation process, the LNG pipelines will vibrate. Over time, the screws on the flanges will become loose. If the screws become loose, LNG will leak. Therefore, an anti-leakage structure for LNG pipelines is invented. Utility Model Content
[0004] In view of the above problems and / or the problems existing in the existing LNG pipeline anti-leakage structure, the present utility model is proposed.
[0005] Therefore, the purpose of the present invention is to provide an anti-leakage structure for LNG pipelines, which can solve the above-mentioned existing problems.
[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:
[0007] An LNG pipeline anti-leakage structure, comprising two groups of LNG pipelines, wherein the two groups of LNG pipelines are connected via an anti-leakage component;
[0008] The anti-leakage component comprises:
[0009] Hollow circular plate;
[0010] Support plates, two sets of support plates are provided at both ends of the hollow circular plate;
[0011] Hollow pipes, both ends of the hollow circular plate are fixedly mounted with hollow pipes, and the hollow pipes are inserted into the LNG pipeline;
[0012] A clamping assembly can be prevented from loosening, and the clamping assembly is arranged on a supporting plate.
[0013] As a preferred solution of the LNG pipeline anti-leakage structure described in the utility model, a sealing ring is provided at the connection between the hollow tube and the LNG pipeline, and the sealing ring is provided in two groups.
[0014] As a preferred solution of the LNG pipeline anti-leakage structure described in the utility model, the clamping assembly includes:
[0015] A stud, the stud being threadedly connected to the support plate;
[0016] A circular plate fixedly mounted on one end of the stud;
[0017] The other end of the stud is rotatably connected to the arc plate through a bearing, and an LNG pipeline is arranged between the two sets of arc plates.
[0018] As a preferred solution of the LNG pipeline anti-leakage structure described in the utility model, the clamping assembly further includes:
[0019] Positioning grooves, both ends of the LNG pipeline are provided with positioning grooves;
[0020] Positioning blocks are fixedly installed at the opposite ends of the two groups of arc-shaped plates, and the positioning blocks are inserted into the positioning grooves.
[0021] As a preferred solution of the LNG pipeline anti-leakage structure described in the utility model, the clamping assembly further includes:
[0022] A T-shaped rod, one side of the circular plate is slidably connected to the T-shaped rod;
[0023] A spring, wherein the spring is sleeved on the T-shaped rod, and the two ends of the spring are fixedly connected to the ends of the circular plate and the T-shaped rod respectively;
[0024] The limiting grooves are arranged in a circular shape on the support plate with the T-shaped rod as the center point, and one end of the T-shaped rod is inserted into a group of limiting grooves.
[0025] As a preferred solution of the LNG pipeline anti-leakage structure described in the utility model, wherein: the support plate is arranged on the hollow circular plate through a connecting component, so that two groups of relative support plates can move toward each other.
[0026] As a preferred solution of the LNG pipeline anti-leakage structure described in the utility model, the connection assembly includes:
[0027] Slide grooves, both ends of the hollow circular plate are provided with slide grooves, and both ends of the slide grooves are slidably connected to the support plate;
[0028] A partition, wherein the partition is fixedly installed in the slide groove;
[0029] A return spring is provided at both ends of the slide slot, and the two ends of the return spring are fixedly connected to the support plate and the partition plate respectively.
[0030] Compared with existing technologies:
[0031] 1. By setting a clamping assembly to clamp and fix the LNG pipeline, it is possible to prevent the LNG pipeline from loosening, thereby improving the connection stability of the LNG pipeline and avoiding LNG leakage.
[0032] 2. By installing the support plate by setting a connection component, there is a force that can make the two groups of LNG pipelines move toward each other, thereby avoiding the reduction of the contact area between the LNG pipeline and the hollow pipe, and further avoiding the leakage of LNG. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;
[0034] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;
[0035] Figure 3 It is a side view schematic diagram of the structure of the utility model;
[0036] Figure 4 It is a top view schematic diagram of the support plate of the utility model.
[0037] In the figure: LNG pipeline 10, hollow circular plate 20, support plate 21, hollow tube 22, sealing ring 23, stud 30, circular plate 31, arc plate 32, positioning groove 33, positioning block 34, T-bar 40, spring 41, limiting groove 42, slide groove 50, partition plate 51, return spring 52. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0039] This utility model provides an anti-leakage structure for LNG pipelines. Please refer to Figure 1-Figure 4 , comprising two groups of LNG pipelines 10, wherein the two groups of LNG pipelines 10 are connected via an anti-leakage component;
[0040] The anti-leakage component includes: a hollow circular plate 20, a support plate 21, a hollow tube 22, and a clamping component capable of preventing loosening;
[0041] Two groups of support plates 21 are provided at both ends of the hollow circular plate 20, hollow tubes 22 are fixedly installed at both ends of the hollow circular plate 20, and the hollow tubes 22 are inserted into the LNG pipeline 10, and the clamping assembly is arranged on the support plate 21, and a sealing ring 23 is provided at the connection between the hollow tube 22 and the LNG pipeline 10, and the sealing ring 23 is provided in two groups, so as to enable double sealing and improve the sealing effect.
[0042] The clamping assembly includes: a stud 30, a circular plate 31, an arc plate 32, a positioning groove 33, a positioning block 34, a T-shaped rod 40, a spring 41, and a limiting groove 42;
[0043] The stud 30 is threadedly connected to the support plate 21, the circular plate 31 is fixedly mounted on one end of the stud 30, the other end of the stud 30 is rotatably connected to the arc plate 32 through a bearing, and an LNG pipeline 10 is arranged between the two groups of arc plates 32, the circular shape formed by the two groups of arc plates 32 matches the cross-sectional shape of the LNG pipeline 10, both ends of the LNG pipeline 10 are provided with positioning grooves 33, the opposite ends of the two groups of arc plates 32 are fixedly mounted with positioning blocks 34, and the positioning blocks 34 are inserted into the positioning grooves 33, one side of the circular plate 31 is slidably connected to the T-shaped rod 40, the spring 41 is sleeved on the T-shaped rod 40, and the two ends of the spring 41 are fixedly connected to the ends of the circular plate 31 and the T-shaped rod 40 respectively, and a plurality of limiting grooves 42 are arranged in a ring on the support plate 21 with the T-shaped rod 40 as the center point, and one end of the T-shaped rod 40 is inserted into a group of limiting grooves 42.
[0044] The support plates 21 are arranged on the hollow circular plate 20 through a connecting assembly so that two sets of opposing support plates 21 can move toward each other;
[0045] The connecting assembly includes: a slide groove 50, a partition plate 51, and a return spring 52;
[0046] Both ends of the hollow circular plate 20 are provided with a slide groove 50, and both ends of the slide groove 50 are slidably connected to the support plate 21, the partition plate 51 is fixedly installed in the slide groove 50, and both ends of the slide groove 50 are provided with a return spring 52, and both ends of the return spring 52 are respectively fixedly connected to the support plate 21 and the partition plate 51, wherein a damper can be arranged between the partition plate 51 and the support plate 21 as required.
[0047] During specific use, the technicians in this field insert the hollow tube 22 into the LNG pipeline 10, and set two sets of sealing rings 23 at the connection between the hollow tube 22 and the LNG pipeline 10 to improve the anti-permeation effect. Then, the support plate 21 is moved toward the LNG pipeline 10. At this time, the return spring 52 is deformed until the positioning groove 33 and the positioning block 34 are aligned. Then, the T-shaped rod 40 and the limit groove 42 are separated. At this time, the spring 41 is deformed. Then, the stud 30 is rotated through the circular plate 31 until the two sets of arc plates 32 are combined to align with the LNG pipeline 10. 0 is squeezed and the positioning block 34 is inserted into the positioning groove 33. At this time, the LNG pipeline 10 and the hollow tube 22 are further fitted to improve the sealing effect. After that, the stud 30 is continuously screwed until the T-shaped rod 40 is aligned with a set of limiting grooves 42. Then, the external force is removed to insert one end of the T-shaped rod 40 into the limiting groove 42 under the action of the spring 41 to prevent the stud 30 from rotating. After the connection is completed, the two sets of LNG pipelines 10 are forced to move toward each other under the action of the return spring 52 to prevent the two sets of LNG pipelines 10 from moving back to back.
[0048] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An anti-leakage structure for LNG pipelines, comprising two groups of LNG pipelines (10), characterized in that: The two groups of LNG pipelines (10) are connected via an anti-leakage component; The anti-leakage component comprises: Hollow circular plate (20); Support plates (21), two sets of support plates (21) are provided at both ends of the hollow circular plate (20); A hollow tube (22), wherein both ends of the hollow circular plate (20) are fixedly mounted with the hollow tube (22), and the hollow tube (22) is inserted into the LNG pipeline (10); A clamping assembly can avoid loosening, and the clamping assembly is arranged on a support plate (21).
2. The LNG pipeline anti-leakage structure according to claim 1, characterized in that: A sealing ring (23) is provided at the connection between the hollow tube (22) and the LNG pipeline (10), and the sealing rings (23) are provided in two groups.
3. The LNG pipeline anti-leakage structure according to claim 1, characterized in that: The clamping assembly comprises: A stud (30), wherein the stud (30) is threadedly connected to the support plate (21); A circular plate (31), wherein the circular plate (31) is fixedly mounted on one end of the stud (30); The other end of the stud (30) is rotatably connected to the arc plate (32) via a bearing, and an LNG pipeline (10) is arranged between the two sets of arc plates (32).
4. The LNG pipeline anti-leakage structure according to claim 3, characterized in that: The clamping assembly also includes: Positioning grooves (33), both ends of the LNG pipeline (10) are provided with positioning grooves (33); Positioning blocks (34) are fixedly installed at opposite ends of the two groups of arc-shaped plates (32), and the positioning blocks (34) are inserted into the positioning grooves (33).
5. The LNG pipeline anti-leakage structure according to claim 4, characterized in that: The clamping assembly also includes: A T-shaped rod (40), one side of the circular plate (31) is slidably connected to the T-shaped rod (40); A spring (41), wherein the spring (41) is sleeved on the T-shaped rod (40), and two ends of the spring (41) are respectively fixedly connected to the ends of the circular plate (31) and the T-shaped rod (40); The support plate (21) is provided with a plurality of limiting grooves (42) arranged in a ring shape with the T-shaped rod (40) as the center point, and one end of the T-shaped rod (40) is inserted into a group of limiting grooves (42).
6. The LNG pipeline anti-leakage structure according to claim 1, characterized in that: The support plates (21) are arranged on the hollow circular plate (20) via a connecting assembly so that two groups of opposing support plates (21) can move towards each other.
7. The LNG pipeline anti-leakage structure according to claim 1, characterized in that: The connection components include: A slide groove (50), wherein both ends of the hollow circular plate (20) are provided with a slide groove (50), and both ends of the slide groove (50) are slidably connected to the support plate (21); A partition (51), wherein the partition (51) is fixedly installed in the slide groove (50); A return spring (52), wherein both ends of the slide groove (50) are provided with a return spring (52), and both ends of the return spring (52) are fixedly connected to the support plate (21) and the partition plate (51) respectively.