CN115574152A - Boats and ships low temperature pipeline support in adjustable clearance - Google Patents
Boats and ships low temperature pipeline support in adjustable clearance Download PDFInfo
- Publication number
- CN115574152A CN115574152A CN202211180221.2A CN202211180221A CN115574152A CN 115574152 A CN115574152 A CN 115574152A CN 202211180221 A CN202211180221 A CN 202211180221A CN 115574152 A CN115574152 A CN 115574152A
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- Prior art keywords
- pipe clamp
- support
- bracket
- spring
- bow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920006327 polystyrene foam Polymers 0.000 claims description 10
- 208000035874 Excoriation Diseases 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
- F16L3/2056—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs the axis of at least one spring being oblique or perpendicular to the direction of the movement of the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a clearance-adjustable ship low-temperature pipeline support which comprises an upper arched pipe clamp, a lower arched pipe clamp, an upper support, a lower support, a spring guide rod, a pre-tightening spring and a pre-tightening pull rod, wherein the upper arched pipe clamp and the lower arched pipe clamp are identical in structure and are symmetrically arranged, a clamping clearance is formed between the upper arched pipe clamp and the lower arched pipe clamp, the upper support and the upper arched pipe clamp, the lower support and the lower arched pipe clamp are respectively in limit connection through the spring guide rod, the pre-tightening spring is respectively arranged between the upper support and the upper arched pipe clamp, and between the lower support and the lower arched pipe clamp, the pre-tightening spring is arranged outside the spring guide rod, and the upper support and the lower support are fixed through the pre-tightening pull rod. According to the invention, the pre-tightening pull rod and the pre-tightening spring are matched with each other, and the length of the movable gap in the non-limiting direction can be adjusted only by adjusting the length of the pre-tightening pull rod between the upper bracket and the lower bracket.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a ship low-temperature pipeline support with an adjustable gap.
Background
As a necessary processing facility in the LNG storage and transportation process, the installation method of the low-temperature pipeline is extremely important, because the temperature difference is usually larger (-196 ℃ -60 ℃) in the working process of the low-temperature pipeline, larger stress can be generated in the actual working process, the phenomenon that the stress exceeds the standard usually occurs at the position of a pipeline elbow and a tee joint, if the problem is ignored, the pipeline can generate plastic deformation and even damage due to long-term fatigue, and the phenomena of pipeline collapse, left and right swing, elbow crease and the like which are often caused by pipeline instability in the industry are all the adverse effects generated by the pipeline stress. The common solution to the pipeline stress exceeding standard is to adjust the gaps of part of the four limit brackets, adjust the gaps of the two limit brackets in the corresponding directions and release the displacement of the two limit parts, so that the two limit parts lose efficacy within a certain range, and the pipeline stress of the stress exceeding part is released. However, the commonly used U-shaped pipe clamp needs to adjust the size of the pipe clamp again to adjust the installation gap, which increases the production cost and workload.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the ship low-temperature pipeline support with the adjustable gap, which can solve the problem that the pipeline stress exceeds the standard in the low-temperature management working process and greatly reduce the workload in the installation process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a clearance-adjustable ship low-temperature pipeline support which comprises an upper arched pipe clamp, a lower arched pipe clamp, an upper support, a lower support, a spring guide rod, a pre-tightening spring and a pre-tightening pull rod, wherein the upper arched pipe clamp and the lower arched pipe clamp are identical in structure and are symmetrically arranged, a clamping clearance is formed between the upper arched pipe clamp and the lower arched pipe clamp, the upper support is arranged at the upper part of the upper arched pipe clamp, the lower support is arranged at the lower part of the lower arched pipe clamp, the upper support and the upper arched pipe clamp are in limit connection with the lower support and the lower arched pipe clamp through the spring guide rod respectively, the pre-tightening springs are arranged between the upper support and the upper arched pipe clamp and between the lower support and the lower arched pipe clamp respectively, the pre-tightening springs are arranged outside the spring guide rod, and the upper support and the lower support are fixed through the pre-tightening pull rod.
According to a preferable technical scheme, cylindrical bosses are arranged on the tops of the upper arched pipe clamp and the lower arched pipe clamp, threaded holes are formed in the bosses, threads matched with the threaded holes are arranged at one end of the spring guide rod, the other end of the spring guide rod penetrates through holes in the upper support and the lower support and is provided with a stepped spring shoulder seat, and the spring guide rod is fixed on the upper support and the lower support through the stepped spring shoulder seat.
As a preferable technical scheme, the stepped spring shoulder seat and the spring guide rod are coaxially arranged, and a chamfer is arranged at a contact position of the stepped spring shoulder seat, the upper bracket and the lower bracket.
As a preferable technical scheme, polystyrene foam plastics are arranged inside the upper arched bracket and the lower arched bracket, and the surfaces of the polystyrene foam plastics, which are in contact with the pipe wall, are subjected to abrasion treatment.
As a preferable technical scheme, the contact surface of the polystyrene foam plastic and the pipe wall is coated with Teflon paint.
As a preferable technical scheme, through holes for the pre-tightening pull rods to pass through are formed in two sides of the upper arched pipe clamp and the lower arched pipe clamp.
According to the preferable technical scheme, the through hole on one side of the upper arched pipe clamp is circular, and the through hole on the other side of the upper arched pipe clamp is oval; the through hole on one side of the lower arched pipe clamp is circular, the through hole on the other side of the lower arched pipe clamp is oval, and the circular through hole of the upper arched pipe clamp corresponds to the oval through hole of the lower arched pipe clamp.
According to the preferable technical scheme, the upper support and the lower support are both in a fusiform plate-shaped structure, the middle parts of the upper support and the lower support are provided with counter bore structures through which the spring guide rod passes, and the two ends of the upper support and the lower support are provided with through hole structures through which the pre-tightening pull rod passes.
Compared with the prior art, the invention has the following technical effects:
according to the invention, the pre-tightening pull rod and the pre-tightening spring are mutually matched, so that the length of the movable gap in the non-limiting direction can be adjusted only by adjusting the length of the pre-tightening pull rod between the upper bracket and the lower bracket under the condition that the pipeline is ensured to meet the condition that the stress does not exceed the standard under various operating conditions. On the other hand, the invention can change the widths of the upper arc-shaped pipe clamp and the lower arc-shaped pipe clamp according to the axial displacement of the pipeline in the stress analysis result, and can also reduce the abrasion degree of the pipeline to the hard insulating material on the inner side of the bracket by adopting the Teflon coating.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a ship cryogenic pipeline bracket with adjustable gap according to the invention.
Fig. 2 is a longitudinal sectional view of the gap-adjustable marine cryogenic pipeline bracket of the present invention.
Wherein the reference numerals are specified as follows: the device comprises an upper bracket 1, a lower bracket 2, an upper arc-shaped pipe clamp 3, a lower arc-shaped pipe clamp 4, a pre-tightening spring 5, a pre-tightening pull rod 6, a step-shaped spring shoulder seat 7, polystyrene foam plastic 8 and a spring guide rod 9.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, the embodiment provides a ship low-temperature pipeline support with an adjustable gap, which includes an upper bow-shaped pipe clamp 3, a lower bow-shaped pipe clamp 4, an upper support 1, a lower support 2, a spring guide rod 9, a pre-tightening spring 5, and a pre-tightening pull rod 6. Go up bow-shaped pipe clamp 3 and bow-shaped pipe clamp 4 structure the same and symmetry setting down, form the centre gripping clearance between last bow-shaped pipe clamp 3 and the bow-shaped pipe clamp 4 down, upper bracket 1 sets up in the upper portion of last bow-shaped pipe clamp 3, lower carriage 2 sets up in the lower part of bow-shaped pipe clamp 4 down, upper bracket 1 and last bow-shaped pipe clamp 3, lower carriage 2 and bow-shaped pipe clamp 4 down are respectively through the spacing connection of spring guide arm 9, between upper bracket 1 and last bow-shaped pipe clamp 3, be provided with pretension spring 5 between lower carriage 2 and the bow-shaped pipe clamp 4 down respectively, pretension spring 5 sets up in the outside of spring guide arm 9, upper bracket 1, lower carriage 2 is fixed through pretension pull rod 6. The upper support 1 and the lower support 2 are both in a fusiform plate structure, the middle parts of the upper support 1 and the lower support 2 are provided with counter bore structures for the spring guide rod 9 to pass through, and the two ends of the upper support 1 and the lower support 2 are provided with through hole structures for the pre-tightening pull rod 6 to pass through.
In this implementation, the top of the upper bow-shaped pipe clamp 3 and the top of the lower bow-shaped pipe clamp 4 are both provided with cylindrical bosses, threaded holes are formed in the bosses, one end of the spring guide rod 9 is provided with threads matched with the threaded holes, the threads are triangular threads, and the spring guide rod 9 is in threaded connection with the bosses. The other end of the spring guide rod 9 penetrates through holes in the upper support 1 and the lower support 2 and is provided with a stepped spring shoulder seat 7, the spring guide rod 9 is fixed on the upper support 1 and the lower support 2 through the stepped spring shoulder seat 7, the stepped spring shoulder seat 7 and the spring guide rod 9 are coaxially arranged, and a chamfer is arranged at the contact position of the stepped spring shoulder seat 7 and the upper support 1 and the lower support 2.
In this embodiment, the polystyrene foam 8 is disposed inside both the upper and lower arcuate brackets, the surface of the polystyrene foam 8 in contact with the pipe wall is subjected to abrasion treatment, and the contact surface of the polystyrene foam 8 with the pipe wall is coated with teflon paint. Through holes for the pre-tightening pull rod 6 to pass through are arranged on two sides of the upper arc-shaped pipe clamp 3 and the lower arc-shaped pipe clamp 4. The through hole at one side of the upper arched pipe clamp 3 is circular, and the through hole at the other side is oval; the through hole on one side of the lower arched pipe clamp 4 is circular, the through hole on the other side is oval, and the circular through hole of the upper arched pipe clamp 3 corresponds to the oval through hole of the lower arched pipe clamp 4.
The Cartesian coordinate system established by an actual installation scene is taken as a reference, on one hand, when the low-temperature pipeline is normally provided with four limit brackets, the conventional guide rod can be selected to adjust the pretightening force of the upper spring and the lower spring to the maximum, so that the bracket has four limit functions on the pipeline. On the other hand, when the pipeline stress analysis result obtained after pipeline stress analysis shows that the maximum secondary stress of the elbow position of a certain section of pipeline exceeds the allowable stress of the current position, the current pipeline is assumed to be in the X direction, a plurality of four-limit supports (Y, -Y; Z, -Z) are normally adopted in the section of pipeline, the limit form close to the position where the stress exceeds the standard in the current pipeline is required to be changed into two limit supports (Y, -Y) to release the stress at the position where the stress exceeds the standard, the locking degree of nuts at two ends of the pre-tightening pull rod 6 with the upper support 1 and the lower support 2 can be adjusted at the corresponding support position, the nuts are properly loosened, the maximum displacement of the corresponding pipeline support position in the Z direction in the stress analysis result is assumed to be 18mm, the movable gap of the pre-tightening springs 5 at two ends needs to be adjusted to be not less than 18mm, and the movable gap of the position within +/-18 mm can be regarded as two limit supports in the working process.
The adjustable-gap low-temperature pipeline support is simple in structure, convenient to install, free of wearing parts and low in maintenance cost, the spring guide rod 9 is designed on the premise that the adjustability of the reserved gap in the actual working process is considered, the abrasion of the insulating layer material is fully considered, the anti-abrasion coating on the insulating material is increased, the material and structure damage caused by axial displacement of a low-temperature pipeline is avoided, and the structure is more stable and reliable.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (8)
1. The ship low-temperature pipeline support with the adjustable gap is characterized by comprising an upper bow-shaped pipe clamp, a lower bow-shaped pipe clamp, an upper support, a lower support, a spring guide rod, a pre-tightening spring and a pre-tightening pull rod, wherein the upper bow-shaped pipe clamp and the lower bow-shaped pipe clamp are identical in structure and are symmetrically arranged, a clamping gap is formed between the upper bow-shaped pipe clamp and the lower bow-shaped pipe clamp, the upper support is arranged at the upper part of the upper bow-shaped pipe clamp, the lower support is arranged at the lower part of the lower bow-shaped pipe clamp, the upper support is in limit connection with the upper bow-shaped pipe clamp, the lower support is in limit connection with the lower bow-shaped pipe clamp through the spring guide rod, the pre-tightening spring is arranged between the upper support and the upper bow-shaped pipe clamp, the lower support is in fixed through the pre-tightening pull rod, and the pre-tightening spring is arranged outside the spring guide rod.
2. The clearance-adjustable ship cryogenic pipeline bracket according to claim 1, wherein cylindrical bosses are arranged on the tops of the upper and lower arch-shaped pipe clamps, threaded holes are arranged on the bosses, threads matched with the threaded holes are arranged on one ends of the spring guide rods, the other ends of the spring guide rods penetrate through holes in the upper and lower brackets and are provided with stepped spring shoulder seats, and the spring guide rods are fixed on the upper and lower brackets through the stepped spring shoulder seats.
3. The clearance-adjustable ship cryogenic pipeline bracket according to claim 2, wherein the stepped spring shoulder seat is arranged coaxially with the spring guide rod, and a chamfer is arranged at the contact part of the stepped spring shoulder seat and the upper bracket as well as the contact part of the stepped spring shoulder seat and the lower bracket.
4. The adjustable-gap ship cryogenic pipeline bracket as claimed in claim 1, wherein polystyrene foam is arranged inside each of the upper and lower arched brackets, and the surface of the polystyrene foam contacting with the pipe wall is subjected to abrasion treatment.
5. The adjustable-gap marine cryogenic pipeline bracket of claim 4, wherein the contact surface of the polystyrene foam and the pipe wall is coated with Teflon coating.
6. The clearance-adjustable ship cryogenic pipeline bracket as claimed in claim 1, wherein through holes for the pre-tightening pull rod to pass through are formed in two sides of the upper arched pipe clamp and the lower arched pipe clamp.
7. The adjustable-gap ship cryogenic pipeline bracket according to claim 5, wherein the through hole on one side of the upper arched pipe clamp is circular, and the through hole on the other side of the upper arched pipe clamp is oval; the through hole on one side of the lower arched pipe clamp is circular, the through hole on the other side of the lower arched pipe clamp is oval, and the circular through hole of the upper arched pipe clamp corresponds to the oval through hole of the lower arched pipe clamp.
8. The clearance-adjustable ship cryogenic pipeline bracket as claimed in claim 1, wherein the upper bracket and the lower bracket are both in a fusiform plate structure, a counter bore structure for the spring guide rod to pass through is arranged in the middle of the upper bracket and the lower bracket, and through hole structures for the pre-tightening pull rod to pass through are arranged at two ends of the upper bracket and the lower bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211180221.2A CN115574152B (en) | 2022-09-27 | 2022-09-27 | Ship low-temperature pipeline bracket with adjustable gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211180221.2A CN115574152B (en) | 2022-09-27 | 2022-09-27 | Ship low-temperature pipeline bracket with adjustable gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115574152A true CN115574152A (en) | 2023-01-06 |
| CN115574152B CN115574152B (en) | 2024-05-14 |
Family
ID=84582837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211180221.2A Active CN115574152B (en) | 2022-09-27 | 2022-09-27 | Ship low-temperature pipeline bracket with adjustable gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115574152B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696600A (en) * | 2015-03-26 | 2015-06-10 | 上海外高桥造船有限公司 | Fixing support used for supporting ship pipeline |
| CN106122599A (en) * | 2016-07-21 | 2016-11-16 | 淮海工学院 | A kind of vibration damping ship pipeline pipe clamp and bracket assembly |
| CN208519317U (en) * | 2018-06-05 | 2019-02-19 | 郑州市祥龙泵业有限公司 | For stablizing the clamping plate of pump tube |
| CN109373055A (en) * | 2018-12-25 | 2019-02-22 | 慈溪铭展工贸有限公司 | A kind of multifunctional combination type pipe clamp of pipeline |
| CN211117986U (en) * | 2019-09-20 | 2020-07-28 | 华电电力科学研究院有限公司 | Reinforced pipe clamp capable of preventing circumferential sliding |
| CN211288996U (en) * | 2019-11-03 | 2020-08-18 | 上海恒者机电工程有限公司 | A water conservancy pipeline supports connection structure for hydraulic engineering |
| CN112344101A (en) * | 2020-09-24 | 2021-02-09 | 沪东中华造船(集团)有限公司 | LNG ship filling pipe fixing pipe clamp and fixing method |
| CN214579672U (en) * | 2021-03-19 | 2021-11-02 | 德阳东方阿贝勒管道系统有限公司 | Novel shock attenuation pipe clamp |
-
2022
- 2022-09-27 CN CN202211180221.2A patent/CN115574152B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696600A (en) * | 2015-03-26 | 2015-06-10 | 上海外高桥造船有限公司 | Fixing support used for supporting ship pipeline |
| CN106122599A (en) * | 2016-07-21 | 2016-11-16 | 淮海工学院 | A kind of vibration damping ship pipeline pipe clamp and bracket assembly |
| CN208519317U (en) * | 2018-06-05 | 2019-02-19 | 郑州市祥龙泵业有限公司 | For stablizing the clamping plate of pump tube |
| CN109373055A (en) * | 2018-12-25 | 2019-02-22 | 慈溪铭展工贸有限公司 | A kind of multifunctional combination type pipe clamp of pipeline |
| CN211117986U (en) * | 2019-09-20 | 2020-07-28 | 华电电力科学研究院有限公司 | Reinforced pipe clamp capable of preventing circumferential sliding |
| CN211288996U (en) * | 2019-11-03 | 2020-08-18 | 上海恒者机电工程有限公司 | A water conservancy pipeline supports connection structure for hydraulic engineering |
| CN112344101A (en) * | 2020-09-24 | 2021-02-09 | 沪东中华造船(集团)有限公司 | LNG ship filling pipe fixing pipe clamp and fixing method |
| CN214579672U (en) * | 2021-03-19 | 2021-11-02 | 德阳东方阿贝勒管道系统有限公司 | Novel shock attenuation pipe clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115574152B (en) | 2024-05-14 |
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