LNG pipeline clamp type quick repair structure
Patent Information
- Application Number
- CN202521549776.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-07-24
AI Technical Summary
[0003]传统的LNG管道修复装置结构较为单一，难以根据LNG管道需要修复部位的长度进行灵活调整，当管道损伤长度超出修复装置覆盖范围时，无法完全包裹受损区域，LNG仍会从未覆盖处泄漏，导致修复失效，装置可能因尺寸不匹配而出现密封不严的情况，影响密封效果，使得修复后的管道仍存在泄漏隐患
[0017]该LNG管道卡箍式快速修复结构，通过设置的滑槽、滑条、支撑块、螺纹杆、矩形槽、锥形齿轮一、锥形齿轮二以及转动杆之间的配合下，根据LNG管本体待修复部位的长度，调整卡箍外壳一与卡箍外壳二之间的长度，确保可以将LNG管本体待修复部位全部覆盖住，从而实现对LNG管本体待修复部位快速覆盖与精准修复。
Smart Images
Figure CN224743171U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rapid repair of LNG pipelines, specifically to a clamp-type rapid repair structure for LNG pipelines. Background Technology
[0002] LNG pipelines are special pipeline systems designed for transporting liquefied natural gas. As a liquid form of natural gas, LNG has advantages such as high transportation efficiency and convenient storage. LNG pipelines are key infrastructure connecting the production, transportation, storage and application of LNG, and are widely used in the energy sector. During LNG pipeline transportation, due to the low temperature, high pressure working environment and the corrosiveness of the medium, the pipeline is prone to damage such as leakage and cracks.
[0003] Traditional LNG pipeline repair devices have a relatively simple structure, making it difficult to flexibly adjust to the length of the LNG pipeline requiring repair. When the damaged pipeline length exceeds the coverage area of the repair device, it cannot completely cover the damaged area, and LNG will still leak from the uncovered areas, leading to repair failure. Furthermore, the device may experience incomplete sealing due to size mismatch, affecting the sealing effect and leaving the repaired pipeline with a potential leakage risk. Therefore, we propose an LNG pipeline clamp-type rapid repair structure. Utility Model Content
[0004] The purpose of this invention is to provide a clamp-type rapid repair structure for LNG pipelines to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an LNG pipeline clamp-type rapid repair structure, comprising:
[0006] The LNG pipe body has two clamp housings, each with two grooves on its outer wall. Each clamp housing has a second clamp housing, with two sliding strips fixedly installed on its inner wall. The sliding strips extend into their corresponding grooves and are slidably connected to them. Fixing blocks are fixedly installed on both sides of the grooves and the sliding strips, and bolts are threaded onto the fixing blocks.
[0007] A support block, which is fixedly installed on the inner wall of the clamp housing and located between two sliding strips;
[0008] Two drive components are located inside two clamp housings and are used to drive two clamp housings to slide on the two clamp housings.
[0009] Preferably, the driving component includes:
[0010] A threaded rod is rotatably mounted on a clamp housing. A rectangular groove is provided inside the clamp housing. One end of the threaded rod extends through the corresponding support block and one side of the clamp housing into the rectangular groove and is fixedly mounted with a bevel gear. A bevel gear is meshed with the bevel gear one in the rectangular groove and on one side of the bevel gear one. A rotating rod is rotatably mounted on the top of the clamp housing. One end of the rotating rod extends through the top of the clamp housing into the rectangular groove, and the rotating rod is coaxially connected with the bevel gear two.
[0011] Preferably, both the first bevel gear and the second bevel gear are rotatably connected to the rectangular groove, and the threaded rod is threadedly installed on the support block.
[0012] Preferably, clamping components are provided on the side of the clamp housing 1 and clamp housing 2 near the LNG pipe body, a sealing ring is provided between the clamping component and the LNG pipe body, and several bolts are threaded on the clamping component.
[0013] Preferably, the clamping member is fixed to the clamp housing 1 and the clamp housing 2 by a plurality of bolts 2.
[0014] Preferably, the support block and the clamp shell are integrally formed.
[0015] Preferably, the first and second clamp housings are made of 304 stainless steel, and the sealing ring is made of low-temperature resistant rubber.
[0016] Compared with the prior art, this utility model provides a clamp-type rapid repair structure for LNG pipelines, which has the following beneficial effects:
[0017] This LNG pipeline clamp-type rapid repair structure, through the cooperation of a set of sliding grooves, sliding strips, support blocks, threaded rods, rectangular grooves, bevel gear one, bevel gear two, and rotating rods, adjusts the length between clamp shell one and clamp shell two according to the length of the part of the LNG pipeline to be repaired, ensuring that the part of the LNG pipeline to be repaired can be completely covered, thereby achieving rapid coverage and precise repair of the part of the LNG pipeline to be repaired. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a cross-sectional structural diagram of clamp housing one and clamp housing two in this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the clamp housing in this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the clamp housing 2 in this utility model;
[0023] Figure 5 This is an exploded structural diagram of the clamping component and sealing ring in this utility model;
[0024] Figure 6 This is a utility model Figure 2 A magnified structural diagram of point A in the middle.
[0025] In the diagram: 1. LNG pipe body; 2. Clamp housing 1; 3. Clamp housing 2; 4. Slide groove; 5. Slide bar; 6. Fixing block; 7. Bolt 1; 8. Clamping component; 9. Sealing ring; 10. Bolt 2; 11. Support block; 12. Threaded rod; 13. Rectangular groove; 14. Bevel gear 1; 15. Bevel gear 2; 16. Rotating rod. Detailed Implementation
[0026] 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.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0029] This utility model provides the following technical solution:
[0030] Example 1
[0031] Please refer to Figure 1-6 LNG pipeline clamp-type rapid repair structure, including:
[0032] The LNG pipe body 1 has two clamp housings 1 2. Two grooves 4 are opened on the outer wall of each clamp housing 1 2. The two clamp housings 1 2 have clamp housings 2 3. Two sliding strips 5 are fixedly installed on the inner wall of each clamp housing 2 3. The two sliding strips 5 extend into the corresponding grooves 4 and are slidably connected to the grooves 4. Fixing blocks 6 are fixedly installed on both sides of the two grooves 4 and the two sliding strips 5. Bolts 1 7 are threaded on the fixing blocks 6.
[0033] Support block 11 is fixedly installed on the inner wall of clamp housing 2 3 and located between two sliding strips 5;
[0034] Two drive components are located inside two clamp housings 1 and 2, and are used to drive the two clamp housings 2 and 3 to slide on the two clamp housings 1 and 2 respectively.
[0035] The process involves placing two clamp housings 1-2 on either side of the LNG pipe body 1 to be repaired, aligning the grooves 4 on clamp housing 1-2 with the axial direction of the LNG pipe body 1. The sliding strips 5 on clamp housing 2-3 are then aligned with the grooves 4 and inserted into them. Clamp housing 2-3 can then slide and adjust its position on clamp housing 1-2. Next, bolts 1-7 are screwed into the fixing block 6 using an auxiliary tool, but not fully tightened, leaving clamp housing 1-2 and clamp housing 2-3 in a preliminary tightened state. Then, the sliding strips 5 are pushed through the grooves 4 using a drive assembly, allowing clamp housing 2-3 to slide on clamp housing 1-2. The length between clamp housing 1-2 and clamp housing 2-3 is adjusted according to the length of the LNG pipe body 1 to be repaired, ensuring complete coverage of the LNG pipe body 1 to achieve rapid coverage and precise repair. Finally, bolts 1-7 are screwed into the fixing block 6 again using an auxiliary tool to lock clamp housing 1-2 and clamp housing 2-3 in place.
[0036] In this embodiment, the driving component includes:
[0037] A threaded rod 12 is rotatably mounted on a clamp housing 1 2. A rectangular groove 13 is provided inside the clamp housing 1 2. One end of the threaded rod 12 extends through the corresponding support block 11 and one side of the clamp housing 1 2 into the rectangular groove 13 and is fixedly mounted with a bevel gear 14. A bevel gear 2 15 is meshed and mounted inside the rectangular groove 13 and on one side of the bevel gear 14. A rotating rod 16 is rotatably mounted on the top of the clamp housing 1 2. One end of the rotating rod 16 extends through the top of the clamp housing 1 2 into the rectangular groove 13. The rotating rod 16 and the bevel gear 2 15 are coaxially connected.
[0038] Rotating the rotating rod 16 causes the bevel gear 15 to rotate within the rectangular groove 13. Under the action of meshing, the rotating bevel gear 15 drives the bevel gear 14 to rotate within the rectangular groove 13. At this time, the rotation of the bevel gear 14 drives the threaded rod 12 to rotate. Under the action of the thread, the rotating threaded rod 12 pushes the support block 11 to slide, thereby pushing the slide bar 5 to slide within the slide groove 4, so that the clamp housing 2 3 slides on the clamp housing 1 2.
[0039] In this embodiment, both bevel gear 14 and bevel gear 15 are rotatably connected to the rectangular groove 13, and the threaded rod 12 is threadedly installed on the support block 11.
[0040] Specifically, it is ensured that bevel gear 14 and bevel gear 15 can rotate within the rectangular groove 13, and under the action of the thread, the rotating threaded rod 12 can drive the support block 11 to slide.
[0041] In this embodiment, clamping components 8 are provided on the side of clamp housing 1 2 and clamp housing 2 3 near the LNG pipe body 1. A sealing ring 9 is provided between the clamping component 8 and the LNG pipe body 1. Several bolts 2 10 are threaded on the clamping component 8.
[0042] As the clamp housing 1 2 and clamp housing 2 3 approach the LNG pipe body 1, the clamping component 8 squeezes the sealing ring 9, making it tightly fit the surface of the LNG pipe body 1. When the clamp is tightened to a certain extent, the bolt 1 7 is tightened with a tool to firmly connect the clamp housing 1 2 and clamp housing 2 3. Then, the bolt 2 10 on the clamping component 8 is tightened to further compress the sealing ring 9 and enhance the sealing effect.
[0043] In this embodiment, the clamping member 8 is fixed to the clamp housing 1 2 and the clamp housing 2 3 by a number of bolts 2 10.
[0044] Among them, the clamping component 8 is fixed by several bolts 210, and the clamping force can be flexibly adjusted to ensure that the sealing ring 9 fits tightly with the pipeline, thereby enhancing the sealing reliability and the stability of the repair structure.
[0045] In this embodiment, the support block 11 and the clamp shell 2 3 are integrally formed structures.
[0046] Among them, ensuring the stability of the support block 11 and the clamp shell 23 structure.
[0047] In this embodiment, the clamp housing 1 2 and clamp housing 2 3 are made of 304 stainless steel, and the sealing ring 9 is made of low-temperature resistant rubber.
[0048] Among them, the clamp housing 1 2 and clamp housing 2 3 are made of 304 stainless steel, which has corrosion resistance and high strength, ensuring that the clamp housing 1 2 and clamp housing 2 3 can adapt to complex environments; the sealing ring 9 is made of low temperature resistant rubber, which ensures that it can maintain elasticity in the low temperature environment of LNG. The combination of the two ensures the long-term stable sealing of the repair structure.
[0049] In actual operation, when this device is used, place the two clamp housings 1-2 on both sides of the part of the LNG pipe body 1 to be repaired, so that the sliding groove 4 on the clamp housing 1-2 corresponds to the axial direction of the LNG pipe body 1. Align the sliding strip 5 on the clamp housing 2-3 with the sliding groove 4 and insert the sliding strip 5 into the sliding groove 4. At this time, the clamp housing 2-3 can slide and adjust its position on the clamp housing 1-2. Then, screw the bolt 1-7 into the fixing block 6 with an auxiliary tool, but do not tighten it completely at this time, so that the clamp housing 1-2 and the clamp housing 2-3 are in a preliminary tightening state. Then, rotate the rotating rod 16. The rotation of the rotating rod 16 drives the bevel gear 2-15 to rotate in the rectangular groove 13. Under the action of meshing, the rotating bevel gear 2-15 The bevel gear 14 rotates within the rectangular groove 13. This rotation of the bevel gear 14 drives the threaded rod 12 to rotate. Under the action of the thread, the rotating threaded rod 12 pushes the support block 11 to slide, thereby pushing the slide bar 5 to slide within the slide groove 4. This allows the clamp housing 2 3 to slide on the clamp housing 1 2. Personnel adjust the length between clamp housing 1 2 and clamp housing 2 3 according to the length of the part of the LNG pipe body 1 to be repaired, ensuring that the entire part of the LNG pipe body 1 to be repaired is covered, thus achieving rapid coverage and precise repair of the part of the LNG pipe body 1 to be repaired. Subsequently, bolt 7 is screwed into the fixing block 6 again using auxiliary tools to lock clamp housing 1 2 and clamp housing 2 3.
[0050] As clamp housing 1 2 and clamp housing 2 3 approach the LNG pipe body 1, the clamping component 8 squeezes the sealing ring 9, making it fit tightly against the surface of the LNG pipe body 1. When the clamp is tightened to a certain extent, use a tool to tighten bolt 1 7 to firmly connect clamp housing 1 2 and clamp housing 2 3. Then tighten bolt 2 10 on the clamping component 8 to further tighten the sealing ring 9 and enhance the sealing effect.
[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An LNG pipeline clamp-type rapid repair structure, characterized in that, include: The LNG pipe body (1) is provided with two clamp housings (2). Two grooves (4) are opened on the outer walls of the two clamp housings (2). Two clamp housings (3) are provided on the two clamp housings (2). Two sliding strips (5) are fixedly installed on the inner walls of the clamp housings (3). The two sliding strips (5) extend into the corresponding grooves (4) and are slidably connected to the grooves (4). Fixing blocks (6) are fixedly installed on both sides of the two grooves (4) and the two sliding strips (5). Bolts (7) are threaded on the fixing blocks (6). Support block (11), which is fixedly installed on the inner wall of clamp housing 2 (3) and located between two slide bars (5); Two drive components are located inside two clamp housings (2) and are used to drive two clamp housings (3) to slide on the two clamp housings (2).
2. The LNG pipeline clamp-type rapid repair structure according to claim 1, characterized in that: The driving component includes: A threaded rod (12) is rotatably mounted on a clamp housing (2). A rectangular groove (13) is provided inside the clamp housing (2). One end of the threaded rod (12) extends through the corresponding support block (11) and one side of the clamp housing (2) into the rectangular groove (13) and is fixedly mounted with a bevel gear (14). A bevel gear (15) is meshed in the rectangular groove (13) and on one side of the bevel gear (14). A rotating rod (16) is rotatably mounted on the top of the clamp housing (2). One end of the rotating rod (16) extends through the top of the clamp housing (2) into the rectangular groove (13). The rotating rod (16) is coaxially connected with the bevel gear (15).
3. The LNG pipeline clamp-type rapid repair structure according to claim 2, characterized in that: Both the first bevel gear (14) and the second bevel gear (15) are rotatably connected to the rectangular groove (13), and the threaded rod (12) is threadedly installed on the support block (11).
4. The LNG pipeline clamp-type rapid repair structure according to claim 1, characterized in that: The clamp housing 1 (2) and clamp housing 2 (3) are provided with a clamping element (8) on the side near the LNG pipe body (1). A sealing ring (9) is provided between the clamping element (8) and the LNG pipe body (1). Several bolts 2 (10) are threaded on the clamping element (8).
5. The LNG pipeline clamp-type rapid repair structure according to claim 4, characterized in that: The clamping member (8) is fixed to the clamp housing one (2) and the clamp housing two (3) by a number of bolts two (10).
6. The LNG pipeline clamp-type rapid repair structure according to claim 1, characterized in that: The support block (11) and the clamp shell (3) are integrally formed.
7. The LNG pipeline clamp-type rapid repair structure according to claim 4, characterized in that: The clamp housing 1 (2) and clamp housing 2 (3) are made of 304 stainless steel, and the sealing ring (9) is made of low-temperature resistant rubber.