CN113884374B - Sea cable water pressure test cabin - Google Patents
Sea cable water pressure test cabin Download PDFInfo
- Publication number
- CN113884374B CN113884374B CN202111160637.3A CN202111160637A CN113884374B CN 113884374 B CN113884374 B CN 113884374B CN 202111160637 A CN202111160637 A CN 202111160637A CN 113884374 B CN113884374 B CN 113884374B
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- pressure
- submarine cable
- cable
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- submarine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Cable Accessories (AREA)
Abstract
The invention provides a submarine cable water pressure test cabin, which belongs to the technical field of submarine cable test and comprises the following components: the submarine cable comprises a shell, wherein the shell is provided with a submarine cable inlet and a submarine cable outlet, and when a submarine cable passes through the shell, two ends of the submarine cable extend out of the submarine cable inlet and the submarine cable outlet respectively; at least three pressure bins which are sequentially arranged are arranged in the shell, and each pressure bin is provided with a pressure measuring device; a passage for passing a submarine cable is formed between two adjacent pressure bins in the shell, and when the submarine cable passes through the passage, the two adjacent pressure bins are sealed; according to the submarine cable hydraulic pressure test cabin, after the submarine cable passes through the shell, three pressure cabins in the shell are sealed relatively, wherein the pressure cabins positioned in the middle can be used for carrying out pressure test on the submarine cable, and the pressure cabins positioned at the two sides can be used for buffering the pressure difference between the pressure cabins for carrying out test on the submarine cable and the outside, so that the problem of stripping of the cable head exposed out of the submarine cable is solved.
Description
Technical Field
The invention relates to the technical field of submarine cable testing, in particular to a submarine cable hydraulic pressure testing cabin.
Background
With offshore infrastructure investments, subsea exploration, and deep water field development, marine industry economies are evolving vigorously. The submarine photoelectric composite submarine cable plays a role in important reuse as a tie for playing the functions of power and communication systems.
The intercontinental high-voltage cable and the communication optical cable are frequently paved in ultra-deep water environment with the depth reaching more than 3000m, and the deep-water photoelectric composite submarine cable structure is usually protected by adopting multilayer armor and extruding thicker PE sheaths. And after the deep sea photoelectric composite submarine cable is designed, a high water pressure environment simulation test is required.
Conventional submarine cable water ballasts, in which the entire length of cable is immersed in a sealed cabin to verify the radial compression and longitudinal water permeability properties of the submarine cable. However, the test method can only verify the single performance of the submarine cable, but cannot verify the photoelectric transmission performance of the submarine cable in a deepwater environment.
In the hydraulic cabin, two ends of the photoelectric composite submarine cable need to be exposed, optical and electrical performance on-line monitoring is carried out, and meanwhile, sealing treatment is needed to be carried out at the exposed end of the photoelectric composite submarine cable. However, the pressure of the working environment is 1.5 times that of the working environment, and due to inconsistent pressure of the cable in and out of the cabin, the phenomenon of dent and stripping of the PE sheath of the cable is easily caused at the high water pressure side, and due to great pressure difference at two ends, the exposed cable head is often compressed and deformed at the sealing position, so that the testing effect is affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the exposed cable head is easily stripped by the hydraulic pressure cabin in the prior art, so as to provide the submarine cable hydraulic pressure test cabin capable of reducing the pressure difference between the exposed part of the submarine cable and the part in the cabin.
In order to solve the technical problem, the invention provides a submarine cable hydraulic pressure test cabin, which comprises:
the submarine cable comprises a shell, wherein the shell is provided with a submarine cable inlet and a submarine cable outlet, and when a submarine cable passes through the shell, two ends of the submarine cable extend out of the submarine cable inlet and the submarine cable outlet respectively;
at least three pressure bins which are sequentially arranged are arranged in the shell, and each pressure bin is provided with a pressure measuring device;
and a passage for passing a submarine cable is arranged between two adjacent pressure bins in the shell, and after the submarine cable passes through the passage, the two adjacent pressure bins are sealed.
Optionally, a plurality of pressure chambers are connected through flanges.
Optionally, the channels between two adjacent pressure bins are sealed with submarine cables in a matched mode through packing.
Optionally, a partition plate is arranged between two adjacent pressure bins, a sleeve hole is arranged on the partition plate, and the packing is accommodated in the sleeve hole.
Optionally, a gland is arranged outside the sleeve hole, and the gland is connected with the partition plate through a fastener.
Optionally, a sealing ring is arranged between the gland and the baffle on a plane of the gland, which is used for being tightly attached to the baffle.
Optionally, the gland has an insertion section extending axially into the trepanning.
Optionally, the shell is provided with a plurality of sections, and two adjacent sections are connected in a sealing way through a flange.
Optionally, a sealing ring is arranged on a flange surface between two adjacent sections of the shell.
Optionally, the sealing ring has at least two turns.
The technical scheme of the invention has the following advantages:
according to the submarine cable hydraulic pressure test cabin provided by the invention, after the submarine cable passes through the shell, the three pressure cabins in the shell are relatively sealed, wherein the pressure cabins positioned in the middle can be used for carrying out pressure test on the submarine cable, and the pressure cabins positioned at the two sides can be used for buffering the pressure difference between the pressure cabins for carrying out test on the submarine cable and the outside, so that the problem of stripping of the cable head exposed out of the submarine cable is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of one embodiment of a submarine cable hydrostatic test pod provided in an embodiment of the present invention.
Fig. 2 is a schematic front cross-sectional view of fig. 1.
Reference numerals illustrate:
1. a housing; 2. a submarine cable inlet; 3. a submarine cable outlet; 4. a pressure measuring device; 5. a low pressure compartment; 6. a high pressure bin; 7. a submarine cable; 8. a flange; 9. a partition plate; 10. trepanning; 11. a filler; 12. and (5) pressing cover.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The submarine cable hydraulic pressure test cabin provided by the embodiment is used for carrying out on-line monitoring on optical and electrical performances of the submarine cable 7 under a pressure state.
As shown in fig. 1, a specific implementation manner of the submarine cable hydraulic pressure testing chamber provided in this embodiment includes: the marine cable device comprises a shell 1, wherein the shell 1 is provided with a marine cable inlet 2 and a marine cable outlet 3, and when in use, a marine cable 7 is penetrated from the marine cable inlet 2 of the shell 1 and is penetrated from the marine cable outlet 3. The casing 1 is internally provided with three pressure bins which are sequentially arranged, each pressure bin is respectively provided with a pressure measuring device 4, and specifically, the pressure measuring devices 4 can be pressure gauges.
According to the submarine cable hydraulic pressure test cabin provided by the embodiment, after the submarine cable 7 passes through the shell 1, three pressure cabins in the shell 1 are sealed relatively, wherein the pressure cabins positioned in the middle can be used for carrying out pressure test on the submarine cable 7, and the pressure cabins positioned at the two sides can be used for buffering the pressure difference between the pressure cabins for carrying out test on the submarine cable 7 and the outside, so that the problem of stripping of the cable head exposed out of the submarine cable 7 is solved.
In addition, as an alternative embodiment, a plurality of pressure chambers may be provided in sequence in the housing 1.
As shown in fig. 1, in the submarine cable hydraulic test chamber provided in this embodiment, the casing 1 has a plurality of sections, and two adjacent sections are connected in a sealing manner by a flange 8, and by dividing the casing 1 into a plurality of sections, it is convenient to inspect each pressure chamber in the casing 1. In addition, as an alternative embodiment, the housing 1 may also be of a unitary structure.
As shown in fig. 2, a sealing ring is arranged on the surface of the flange 8 between two adjacent sections of the shell 1, the sealing ring has two rings, and the sealing effect of the inner side and the outer side can be increased through a plurality of rings of sealing rings. In addition, as an alternative embodiment, the number of the sealing rings may be further increased.
As shown in fig. 2, in the submarine cable hydraulic test chamber provided in this embodiment, a passage for passing through a submarine cable 7 is provided between two adjacent pressure chambers in the housing 1, and after the submarine cable 7 passes through the passage, the two adjacent pressure chambers are sealed. Specifically, a partition plate 9 is arranged between two adjacent pressure bins, and a sleeve hole 10 is formed in the partition plate 9. The sleeve hole 10 is suitable for being provided with a packing 11, and the packing 11 is matched with the submarine cable 7 for sealing. The gland 12 is arranged outside the trepanning 10, the gland 12 is connected with the partition plate 9 through a fastener, and a sealing ring is arranged between the gland 12 and the partition plate 9 and is tightly attached to the plane of the partition plate 9. The gland 12 has an insertion section extending axially into the sleeve bore 10, through which insertion section the packing 11 is held in abutment. In addition, as an alternative, the passage through which the submarine cable 7 passes between two adjacent pressure chambers may also be sealed by other conventional means, such as sealing rings or the like.
As shown in fig. 2, in the submarine cable hydraulic pressure test chamber provided in this embodiment, each pressure chamber is disposed in a section of one casing 1, and a plurality of pressure chambers are connected by flanges 8 between the casings 1, so as to facilitate disassembly between the pressure chambers. In addition, as an alternative embodiment, the pressure chambers may be connected by other conventional removable means, such as a threaded connection or the like.
The submarine cable water pressure test cabin that this embodiment provided, when using:
firstly, the photoelectric composite submarine cable 7 penetrates into pressure bins, and three pressure bins through which the photoelectric composite submarine cable 7 sequentially penetrates in the shell 1 are respectively corresponding to: the low-pressure cabin 5, the high-pressure cabin 6 and the low-pressure cabin, and the two ends of the submarine cable 7 are exposed and connected with the photoelectric monitoring equipment.
The packing 11 is plugged into the trepanning 10 of the baffle plate 9, and the gland 12 is used for tightly pressing the packing 11 in a bolt fixing mode. The packing 11 expands radially under the action of axial compression force, so that the outer sheath of the photoelectric composite submarine cable 7 and the pressure bin are sealed.
Sealing rings are arranged between flanges 8 on each section of the shell 1, and each section is connected in a sealing way through bolts.
The pressure of the low pressure chamber 5, the high pressure chamber 6 and the low pressure chamber which are sequentially arranged in the shell 1 are applied simultaneously, the pressure can be stopped when the pressure in the low pressure chamber 5 is half of the highest pressure, the high pressure chamber can further apply the pressure to the highest working environment, and the applied pressure can be monitored by the pressure gauge.
The two ends of the photoelectric composite submarine cable 7 are monitored on line, and the influence of high water pressure on the lateral pressure resistance, optical signal transmission and electrical unit insulation performance of the photoelectric composite submarine cable 7 in the water pressure application process and the load-protecting stage is observed.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (9)
1. Sea cable water pressure test cabin, its characterized in that includes:
the marine cable device comprises a shell (1), wherein the shell (1) is provided with a marine cable inlet (2) and a marine cable outlet (3), and when a marine cable (7) passes through the shell (1), two ends of the marine cable (7) respectively extend out of the marine cable inlet (2) and the marine cable outlet (3);
at least three pressure bins which are sequentially arranged are arranged in the shell (1), and a pressure measuring device (4) is respectively arranged on each pressure bin;
a passage for passing through the submarine cable (7) is arranged between two adjacent pressure bins in the shell (1), and after the submarine cable (7) passes through the passage, the passage between the two adjacent pressure bins is sealed with the submarine cable (7) in a matched manner through a filler (11) to be closed;
the pressure bin positioned in the middle is a high-pressure bin (6), and the high-pressure bin (6) is used for carrying out pressure test on the submarine cable (7); the pressure chambers located at two sides of the high-pressure chamber (6) are low-pressure chambers (5), and the low-pressure chambers (5) are used for buffering pressure difference between the high-pressure chambers and the outside.
2. Submarine cable hydrostatic test capsule according to claim 1, wherein a plurality of said pressure capsules are connected by means of flanges (8).
3. Submarine cable hydrostatic test capsule according to claim 1, wherein a partition (9) is provided between two adjacent pressure tanks, the partition (9) being provided with a socket (10), and the filler (11) being accommodated in the socket (10).
4. A submarine cable hydrostatic test capsule according to claim 3, wherein a gland (12) is arranged outside the trepanning (10), and the gland (12) is connected with the partition board (9) through a fastener.
5. Submarine cable hydraulic pressure test chamber according to claim 4, characterized in that a sealing ring is arranged between the gland (12) and the partition board (9) on the plane for being tightly attached to the partition board (9).
6. Submarine cable hydrostatic test capsule according to claim 4, wherein the gland (12) has an insert section extending axially into the trepanning (10).
7. Submarine cable hydrostatic test capsule according to claim 1, wherein the housing (1) has several segments, adjacent segments being sealingly connected by means of flanges (8).
8. Submarine cable hydraulic test pod according to claim 7, characterized in that a sealing ring is arranged on the flange (8) face between two adjacent sections of the housing (1).
9. The submarine cable hydrostatic test capsule of claim 8, wherein the gasket ring has at least two turns.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160637.3A CN113884374B (en) | 2021-09-30 | 2021-09-30 | Sea cable water pressure test cabin |
| PCT/CN2022/082233 WO2023050736A1 (en) | 2021-09-30 | 2022-03-22 | Submarine cable water pressure test cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160637.3A CN113884374B (en) | 2021-09-30 | 2021-09-30 | Sea cable water pressure test cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113884374A CN113884374A (en) | 2022-01-04 |
| CN113884374B true CN113884374B (en) | 2023-10-03 |
Family
ID=79004794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111160637.3A Active CN113884374B (en) | 2021-09-30 | 2021-09-30 | Sea cable water pressure test cabin |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113884374B (en) |
| WO (1) | WO2023050736A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884374B (en) * | 2021-09-30 | 2023-10-03 | 中天科技海缆股份有限公司 | Sea cable water pressure test cabin |
| CN115855673A (en) * | 2022-12-21 | 2023-03-28 | 中天科技海缆股份有限公司 | Submarine optical cable testing method and device, storage medium and electronic equipment |
| CN116593343B (en) * | 2023-05-26 | 2024-03-29 | 广东电网有限责任公司 | Submarine cable inner sheath thermal fatigue test device |
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| GB344226A (en) * | 1930-03-05 | 1931-03-05 | Henry Richard Day | Improvements in or connected with water leak detectors |
| GB842038A (en) * | 1958-01-22 | 1960-07-20 | Submarine Cables Ltd | Improvements in fluid-tight seals |
| CN202689092U (en) * | 2012-08-14 | 2013-01-23 | 石家庄科亚自动化供水设备有限公司 | Improved water pressure shock-absorption stabilizer |
| CN203422194U (en) * | 2013-07-29 | 2014-02-05 | 天津六〇九电缆有限公司 | Cable watertightness testing device |
| CN106353050A (en) * | 2016-08-16 | 2017-01-25 | 中天科技海缆有限公司 | Sealing device for submarine cable water resistance test |
| CN106644428A (en) * | 2016-11-14 | 2017-05-10 | 深圳市鲲鹏智能装备制造有限公司 | Test method and apparatus for deep sea activity assembly |
| CN109596288A (en) * | 2019-02-15 | 2019-04-09 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing property detection device and detection method |
| CN110961434A (en) * | 2019-12-24 | 2020-04-07 | 山东丰获机械制造有限公司 | Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts |
| CN112098483A (en) * | 2020-09-11 | 2020-12-18 | 中山大学 | Watertight reference electrode |
| CN112576929A (en) * | 2020-11-29 | 2021-03-30 | 沪东重机有限公司 | Cable cabin-penetrating sealing device of pressure container |
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| JP3573538B2 (en) * | 1995-08-01 | 2004-10-06 | 株式会社アカシ | Seismometer with signal cable test section |
| CN101644648A (en) * | 2008-08-06 | 2010-02-10 | 江苏通光信息有限公司 | Method and device for testing water pressure resistance and water permeability of undersea cable and underwater facility thereof |
| CN106198234A (en) * | 2016-08-24 | 2016-12-07 | 江苏通光海洋光电科技有限公司 | Hydraulic test device for testing submarine optical cable core |
| CN207908259U (en) * | 2018-02-09 | 2018-09-25 | 中国石油大学(华东) | A kind of sealed connection connector and cable crushing test system |
| CN208078289U (en) * | 2018-03-27 | 2018-11-09 | 中天科技海缆有限公司 | A kind of hose umbilical cables submarine terminal |
| CN108593447A (en) * | 2018-04-20 | 2018-09-28 | 中国石油集团渤海石油装备制造有限公司 | Internal lining pipe water test unit and test method |
| CN113884374B (en) * | 2021-09-30 | 2023-10-03 | 中天科技海缆股份有限公司 | Sea cable water pressure test cabin |
-
2021
- 2021-09-30 CN CN202111160637.3A patent/CN113884374B/en active Active
-
2022
- 2022-03-22 WO PCT/CN2022/082233 patent/WO2023050736A1/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB344226A (en) * | 1930-03-05 | 1931-03-05 | Henry Richard Day | Improvements in or connected with water leak detectors |
| GB842038A (en) * | 1958-01-22 | 1960-07-20 | Submarine Cables Ltd | Improvements in fluid-tight seals |
| CN202689092U (en) * | 2012-08-14 | 2013-01-23 | 石家庄科亚自动化供水设备有限公司 | Improved water pressure shock-absorption stabilizer |
| CN203422194U (en) * | 2013-07-29 | 2014-02-05 | 天津六〇九电缆有限公司 | Cable watertightness testing device |
| CN106353050A (en) * | 2016-08-16 | 2017-01-25 | 中天科技海缆有限公司 | Sealing device for submarine cable water resistance test |
| CN106644428A (en) * | 2016-11-14 | 2017-05-10 | 深圳市鲲鹏智能装备制造有限公司 | Test method and apparatus for deep sea activity assembly |
| CN109596288A (en) * | 2019-02-15 | 2019-04-09 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing property detection device and detection method |
| CN110961434A (en) * | 2019-12-24 | 2020-04-07 | 山东丰获机械制造有限公司 | Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts |
| CN112098483A (en) * | 2020-09-11 | 2020-12-18 | 中山大学 | Watertight reference electrode |
| CN112576929A (en) * | 2020-11-29 | 2021-03-30 | 沪东重机有限公司 | Cable cabin-penetrating sealing device of pressure container |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023050736A1 (en) | 2023-04-06 |
| CN113884374A (en) | 2022-01-04 |
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