CN111664297A - Umbilical cable counter weight device - Google Patents
Umbilical cable counter weight device Download PDFInfo
- Publication number
- CN111664297A CN111664297A CN202010333864.0A CN202010333864A CN111664297A CN 111664297 A CN111664297 A CN 111664297A CN 202010333864 A CN202010333864 A CN 202010333864A CN 111664297 A CN111664297 A CN 111664297A
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- China
- Prior art keywords
- umbilical
- umbilical cable
- counterweight
- cable
- counter weight
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- 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.)
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Classifications
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
- F16L1/163—Laying or reclaiming pipes on or under water on the bottom by varying the apparent weight of the pipe during the laying operation
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses an umbilical cable counterweight device which comprises a counterweight device body, wherein the counterweight device body comprises a first counterweight part and a second counterweight part, the first counterweight part and the second counterweight part are connected and then have a hollow structure inside, and the hollow structure is wound on an umbilical cable. Above-mentioned umbilical cable counter weight device, simple structure, when reinforcing umbilical cable stability, can allow to be under construction on the ship of shop cable, need not to carry out the ditching landfill or extra delivery cement briquetting and concrete tunnel to the seabed, has reduced the construction degree of difficulty that the umbilical cable installation was laid, has reduced marine construction work load, can promote the efficiency of construction that the umbilical cable was laid greatly, reduces construction cost and construction risk.
Description
Technical Field
The invention belongs to the technical field of submarine cables, and particularly relates to an umbilical cable counterweight device.
Background
An Umbilical cable (Umbilical) is a combined cable of an electric cable, an optical cable and a hydraulic or chemical agent pipe, is key equipment in the fields of submarine oil and gas exploration and production, underwater equipment control installation, ocean engineering and the like, provides electric power, pneumatic and hydraulic power, chemical injection and data transmission for an undersea working system, and realizes the control and monitoring of the underwater working system through the Umbilical cable.
Currently, methods for enhancing umbilical stability include: ditching and burying the umbilical cable, and placing a cement briquette or a concrete tunnel above the umbilical cable.
The above method of enhancing the stability of an umbilical has the following problems:
(1) the method for enhancing the stability of the umbilical cable by means of trenching and burying the umbilical cable has great limitation, is restricted by environmental conditions, requires silt as geological conditions for laying the umbilical cable in a sea area, is soft in geology, and can be used for trenching and backfilling by means of trenching technology. However, if the geological conditions are hard sand environments such as sand, stone or rock, trenching operation cannot be performed, and the stability of the umbilical cable cannot be ensured in a landfill mode.
(2) The stability of the umbilical cable is enhanced by placing cement briquettes or concrete tunnels above the umbilical cable, and due to the fact that the storage capacity and the discharge capacity of a ship for laying the umbilical cable are limited, additional ships need to be mobilized by adopting the method, and the cement briquettes or the concrete tunnels are specially placed; if the number of the cement briquettes or the concrete tunnels is large, an extra ship for transportation is needed to transport the cement briquettes or the concrete tunnels, so that the construction period of the whole umbilical cable installation operation is influenced, and meanwhile, the operation cost is greatly increased.
Disclosure of Invention
The invention provides an umbilical cable counterweight device, aiming at the technical problems of large limitation or high operation cost of a method for reinforcing the stability of an umbilical cable by adopting a method of trenching and burying the umbilical cable and placing a cement pressing block or a concrete tunnel above the umbilical cable.
The umbilical cable counterweight device comprises a counterweight device body, wherein the counterweight device body comprises a first counterweight part and a second counterweight part, the first counterweight part and the second counterweight part are connected and then have a hollow structure inside, and the hollow structure is wound on the umbilical cable.
In one embodiment, an umbilical protection part is arranged at the contact part of the first counterweight part and the second counterweight part and the umbilical.
In one embodiment, the counterweight body is made of nodular cast iron.
In one embodiment, the ratio of the length of the counterweight body in the umbilical direction to the umbilical diameter is 1: (2.0-3.0).
In one embodiment, the length of the counterweight device body along the umbilical cable direction is 300mm to 500mm, and the weight of the counterweight device body is 60kg to 80 kg.
In one embodiment, the first weight portion is detachably connected to the second weight portion.
In one embodiment, the umbilical protection member is made of a flexible material.
In one embodiment, the umbilical protection member is made of a polytetrafluoroethylene material.
In one embodiment, the first weight portion and the second weight portion are further provided with a cathode protection portion respectively.
In one embodiment, the cathodic protection part comprises an anode detachably fixed to the first weight part and the second weight part.
Above-mentioned umbilical cable counter weight device, simple structure, when reinforcing umbilical cable stability, can allow to be under construction on the ship of shop cable, need not to carry out the ditching landfill or extra delivery cement briquetting and concrete tunnel to the seabed, has reduced the construction degree of difficulty that the umbilical cable installation was laid, has reduced marine construction work load, can promote the efficiency of construction that the umbilical cable was laid greatly, reduces construction cost and construction risk.
Drawings
FIG. 1 is a front view of a schematic structural diagram of an umbilical cord counterweight apparatus according to an embodiment of the invention;
FIG. 2 is a top view of the umbilical weighting device of FIG. 1;
FIG. 3 is a schematic section A-A of the umbilical weighting device of FIG. 1;
FIG. 4 is a schematic view of section B-B of the umbilical weighting device of FIG. 1;
FIG. 5 is a schematic illustration of the installation of the umbilical weighting device of FIG. 1;
wherein, 10-umbilical cable counterweight device; 110-a first weight; 120-second counterweight, 200-bolted connection; 300-a cathodic protection part; 400-umbilical protection; 20-umbilical cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 5, an umbilical cable counterweight device according to an embodiment of the present invention includes a counterweight device body, wherein the counterweight device body includes a first counterweight portion 110 and a second counterweight portion 120, and the first counterweight portion 110 and the second counterweight portion 120 are connected to form a hollow structure inside, and the hollow structure is used to be wound around an umbilical cable. In the process of laying the umbilical cable, the mounting position and the mounting number of the umbilical cable counterweight device are calculated according to the stability required by the umbilical cable, then the main body of the umbilical cable counterweight device is buckled at the designed position, and then the first counterweight part 110 and the second counterweight part 120 are connected and fixed into a whole through a detachable connecting structure such as a bolt connecting piece 200, so that the umbilical cable counterweight device is fixed on the umbilical cable.
This embodiment's umbilical cable counter weight device, simple structure, when reinforcing umbilical cable stability, can allow to be under construction on the ship of spreading the cable, need not to carry out the ditching landfill or extra delivery cement briquetting and concrete tunnel to the seabed, has reduced the construction degree of difficulty that the umbilical cable installation was laid, has reduced marine construction work load, can promote the efficiency of construction that the umbilical cable was laid greatly, reduces construction cost and construction risk.
Preferably, an umbilical cable protector 400 is provided at a contact portion between the first weight 110 and the second weight 120 and the umbilical cable. In the inside of first counter weight portion 110 and second counter weight portion 120, that is to say the hollow structure surface that constitutes after first counter weight portion 110 is connected with second counter weight portion 120 contacts with the umbilical, is equipped with umbilical protection part 400 in this department, can make the umbilical counter weight device remove along with the cable, can also ensure not harm the umbilical when this umbilical counter weight device assembles on the umbilical, guarantees the stability of umbilical simultaneously when construction installation, removal, use under water.
As an optional embodiment, the counterweight device body is made of nodular cast iron, the material has the strength of cast steel, the cast iron has excellent corrosion resistance, the price is cheaper than steel, the counterweight device body made of the material is light and heavy, the weight and the volume of the counterweight device body can be reduced as much as possible while the umbilical cable counterweight is improved and the stability of the umbilical cable is enhanced, and the requirement that an additional transport ship is required for transporting the umbilical cable counterweight device is avoided.
As an alternative embodiment, the ratio of the length of the counterweight body in the direction of the umbilical to the diameter of the umbilical is 1: (2.0 to 3.0) may be, for example, 1:2.0, 1:2.2, 1:2.4, 1:2.6, 1:2.8, 1:3.0, etc., and preferably 1: 2.5. preferably, the length of the weight device body in the umbilical cable direction is 300mm to 500mm, for example, a specific length such as 300mm, 320mm, 340mm, 360mm, 380mm, 400mm, 420mm, 440mm, 460mm, 480mm, 500mm, and preferably 400mm, and the weight of the weight device body is 60kg to 80kg, in specific examples, 60kg, 62kg, 40kg, 66kg, 68kg, 70kg, 72kg, 74kg, 76kg, 78kg, and 80kg, and preferably 70 kg. When the counterweight device body structure of the embodiment is installed on the umbilical cable, the movement of the umbilical cable can be relatively smooth, so that the possibility that the minimum bending radius of the umbilical cable exceeds the design range becomes smaller when the stability calculation is carried out in the design. In addition, for the umbilical cables with different specifications, particularly the unconventional umbilical cables, the ratio of the length of the counterweight device body along the umbilical cable direction to the diameter of the umbilical cable, the length of the counterweight device body along the umbilical cable direction and the weight of the counterweight device body can be adjusted according to the specification of the actual umbilical cable.
As an alternative, the first weight portion 110 and the second weight portion 120 are detachably connected, and the detachable connection may be a bolt connection, a snap connection, or other practicable connection. The detachable connection mode is convenient for assembling the counterweight device during umbilical cable construction on one hand, and is convenient for disassembling during umbilical cable rerouting, remote moving and transferring on the other hand, and the umbilical cable counterweight device can be recycled, so that the construction cost is reduced. Preferably, the first weight portion 110 and the second weight portion 120 are divided into a bottom portion and a top portion, and an O-shaped barrel-shaped hollow structure is formed inside the connected internal weight device body for accommodating an umbilical cable. Screw holes are formed in positions of the first weight portion 110 corresponding to the second weight portion 120, and the bolt connector 200 fixedly connects the first weight portion 110 and the second weight portion 120 through the screw holes of the first weight portion 110 and the second weight portion 120.
Preferably, the umbilical cord protection part 400 is made of a flexible material. More preferably, the umbilical cord protection member 400 is made of a polytetrafluoroethylene material.
Further alternatively, the first weight portion 110 and the second weight portion 120 are provided with a cathode protection portion 300, respectively. The cathode protection member 300 is used to ensure the life of the weight device. Preferably, the cathode protection member 300 includes an anode detachably fixed to the first weight member 110 and the second weight member 120. For example, the anode may be fixed to the first weight portion 110 and the second weight portion 120 by bolts. Specifically, in this embodiment, the anode as the cathodic protection part is made of an aluminum alloy material, and the reduction property is strong. The cathodic protection part is connected with a protected metal (namely, a metal adopted by the weight device body) to form a galvanic cell, the metal with stronger reducibility is consumed as a negative electrode through oxidation reaction, and the protected metal is used as a positive electrode to avoid corrosion.
Referring to fig. 1 to 5, an umbilical weighting device according to an embodiment of the present invention includes a first weighting portion 110, a second weighting portion 120, an umbilical protection portion 400, and a cathode protection portion 300. The first weight part 110 and the second weight part 120 are detachably connected together through bolts, and the first weight part 110 and the second weight part 120 are connected to form a three-dimensional structure similar to a cuboid in appearance and a circular barrel-shaped hollow structure inside the three-dimensional structure.
The cuboid-like three-dimensional structure outside the counterweight device body facilitates the assembly of the counterweight device on the umbilical cable and then the counterweight device is placed on the seabed, in the embodiment, when the assembled counterweight device is placed on the seabed, the first counterweight part 110 is at the bottom, and the second counterweight part 120 is at the top. The round barrel-shaped hollow structure in the counterweight device body is convenient for assembling the umbilical cable in the counterweight device body, and the umbilical cable protection part 400 made of polytetrafluoroethylene material is arranged on the surface of the round barrel-shaped hollow structure, so that the umbilical cable is prevented from being abraded or damaged by the counterweight device. The first weight portion 110 and the second weight portion 120 are detachably linked together through a T-shaped bolt, one end of the T-shaped bolt is a nut, the other end of the T-shaped bolt is a nut, and a gasket is optionally arranged at a contact portion of the nut, the nut and the first weight portion 110 or the second weight portion 120, so as to prevent the bolt from loosening or abrasion of the weight device body after the bolt is screwed. The first weight portion 110 and the second weight portion 120 are both provided with a cathode protection portion 300, in this embodiment, the cathode protection portion 300 is an anode made of an anode material, the cathode protection portion 300 is fixed on the weight device body, in this embodiment, the cathode protection portion 300 is detachably fixed on the weight device body by bolts, that is, the cathode protection portion 300 is respectively fixed on the outer side of the first weight portion 110 and the outer side of the second weight portion 120 by bolts.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides an umbilical cable counter weight device, its characterized in that, umbilical cable counter weight device includes counter weight device body, counter weight device body includes first counter weight portion (110) and second counter weight portion (120), first counter weight portion (110) with inside hollow structure that is of back is connected to second counter weight portion (120), hollow structure is used for around locating on the umbilical cable.
2. The umbilical weighting device according to claim 1, wherein umbilical protection (400) is provided where the first counterweight (110) and the second counterweight (120) contact the umbilical.
3. The umbilical cable counterweight device of claim 1 wherein the counterweight body is fabricated from a ductile iron material.
4. The umbilical weighting device of claim 1 wherein the ratio of the length of the weighting device body in the umbilical direction to the umbilical diameter is 1: (2.0-3.0).
5. The umbilical cable weighting device of claim 3 wherein the weighting device body has a length in the direction of the umbilical cable of from 300mm to 500mm and a weight of from 60kg to 80 kg.
6. Umbilical weighting device according to claim 1, characterized in that the first weight (110) is detachably connected to the second weight (120).
7. The umbilical weighting device according to claim 2, wherein the umbilical protection part (400) is made of a flexible material.
8. The umbilical weighting device according to claim 7, wherein the umbilical protection member (400) is made of a polytetrafluoroethylene material.
9. Umbilical weighting device according to any of claims 1 to 8, characterized in that the first weighting part (110) and the second weighting part (120) are further provided with a cathodic protection part (300), respectively.
10. Umbilical weighting device according to claim 9, characterized in that the cathodic protection (300) comprises an anode which is detachably fixed to the first (110) and second (120) weighting parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333864.0A CN111664297A (en) | 2020-04-24 | 2020-04-24 | Umbilical cable counter weight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333864.0A CN111664297A (en) | 2020-04-24 | 2020-04-24 | Umbilical cable counter weight device |
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| Publication Number | Publication Date |
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| CN111664297A true CN111664297A (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010333864.0A Pending CN111664297A (en) | 2020-04-24 | 2020-04-24 | Umbilical cable counter weight device |
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| CN (1) | CN111664297A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006014536A (en) * | 2004-06-29 | 2006-01-12 | Furukawa Electric Co Ltd:The | Pipe joint |
| CN201805205U (en) * | 2010-08-25 | 2011-04-20 | 中国石油天然气集团公司 | Underwater cable balancing weight |
| CN206234474U (en) * | 2016-11-24 | 2017-06-09 | 河南省电力勘测设计院 | A kind of seabed HDPE pipeline saddle weights |
| CN208479147U (en) * | 2018-03-27 | 2019-02-05 | 中天科技海缆有限公司 | A kind of underwater dynamic cable clump weight |
| CN110635438A (en) * | 2019-09-26 | 2019-12-31 | 中海石油(中国)有限公司 | Submarine cable ballast unit |
-
2020
- 2020-04-24 CN CN202010333864.0A patent/CN111664297A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006014536A (en) * | 2004-06-29 | 2006-01-12 | Furukawa Electric Co Ltd:The | Pipe joint |
| CN201805205U (en) * | 2010-08-25 | 2011-04-20 | 中国石油天然气集团公司 | Underwater cable balancing weight |
| CN206234474U (en) * | 2016-11-24 | 2017-06-09 | 河南省电力勘测设计院 | A kind of seabed HDPE pipeline saddle weights |
| CN208479147U (en) * | 2018-03-27 | 2019-02-05 | 中天科技海缆有限公司 | A kind of underwater dynamic cable clump weight |
| CN110635438A (en) * | 2019-09-26 | 2019-12-31 | 中海石油(中国)有限公司 | Submarine cable ballast unit |
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Application publication date: 20200915 |
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| RJ01 | Rejection of invention patent application after publication |