CN109217181B - Method suitable for laying power supply cable of water level difference ship shore power system - Google Patents
Method suitable for laying power supply cable of water level difference ship shore power system Download PDFInfo
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- CN109217181B CN109217181B CN201811110002.0A CN201811110002A CN109217181B CN 109217181 B CN109217181 B CN 109217181B CN 201811110002 A CN201811110002 A CN 201811110002A CN 109217181 B CN109217181 B CN 109217181B
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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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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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
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A method for laying power supply cables of a water level fall ship shore power system is characterized in that cable bridges are arranged along an inclined slope to lay the cables, cable net sleeves connected with tension sensors are arranged through cables connected with one ends of wharf ship powered devices, the tension sensors are connected with a wharf ship, and the control device controls the opening of a cable winch to contract or release the cables when the wharf ship changes along with water level. The method solves the problems of high cable laying cost, short cable service life and potential safety hazard of the original ship shore power system, and has the characteristics of low construction cost, no need of high-altitude operation, accurate control of cable shrinkage release amount, long service life, safety and reliability.
Description
Technical Field
The invention belongs to the technical field of ship shore power, and relates to a method suitable for laying a power supply cable of a water head ship shore power system.
Background
At present, wharves along rivers, lakes or islands are usually provided with a platform for ships to use, stop and supply, float in water and stop at the bank, also called wharfs. It is a rectangular flat-bottomed ship without power unit, and its power source is provided by on-shore power supply system. At present, most of shore power system power supply cables are laid in a wave shape along with overhead steel stranded wires; according to the laying mode, portal frameworks are required to be erected at two ends of a path to support the steel strands, a steel strand winch is arranged on the side similar to a wharf, and the steel strands are automatically wound and unwound along with the water level fluctuation winch. The method for laying the ship shore power system cable has the following problems:
the cable is overhead, and an overhead support needs to be built, so that the cost is high;
the cable is overhead, so that the installation and maintenance are inconvenient, and potential safety hazards exist in high-altitude operation;
when the cable is wound and unwound due to water level fluctuation, the cable frequently rubs with the steel wire stranded wire, the folding frequency of the cable is too high, and the service life is influenced;
the aerial cable is located the wind direction region that has the water, and wind-force changes unusually, and is high to whole transmission of electricity structural stability, and under the condition of proruption strong wind, the receiving and releasing between wharf boat and cable and the steel strand wires is difficult to control, causes the wharf boat to topple easily, has the potential safety hazard.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for laying power supply cables of a water level fall ship shore power system, which is simple, adopts a cable bridge frame arranged along an inclined slope to lay the cables, a cable arrangement cable net sleeve connected with one end of a wharf ship power receiving device is connected with a tension sensor, the tension sensor is connected with the wharf ship, and a control device controls to open a cable winch to contract or release the cables when the wharf ship changes along with the water level, so that the construction cost is low, high-altitude operation is not needed, the control on the contraction and release amount of the cables is accurate, the service life is long, and the method is safe and reliable.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method suitable for laying power supply cables of a water head ship shore power system comprises the following steps:
step 1: installing a cable winch;
step 2: installing a cable bridge;
and step 3: laying a cable;
and 4, step 4: installing a cable net sleeve;
and 5: and (6) installing a tension sensor.
In the step 1, a cable winch is hoisted to a prefabricated supporting platform, and a cable releasing end faces to a wharf boat; the mounting hole of the cable winch base corresponds to the positioning hole on the supporting platform and is fixedly connected by a fastener;
in step 3, pulling one end of the cable from the cable releasing end of the cable winch; placing the cable on a roller in the bridge base along the slope and stretching the cable to a pontoon;
in the step 5, one end of the cable net sleeve close to the wharf boat is connected with one end of the tension sensor; the other end of the tension sensor is connected with the pontoon; and covering a bridge cover plate along the bridge base.
The control equipment is positioned at the lower part of the supporting platform; the control circuit of the cable winch is connected with the control equipment; the output end of the tension sensor is connected with the control equipment.
The bridge cover plate is flexibly or elastically connected with the bridge base and sinks and floats along with the water level fall.
A method for laying power supply cables of a water level fall ship shore power system is characterized in that cable bridges are arranged along an inclined slope to lay the cables, cable net sleeves connected with tension sensors are arranged through cables connected with one ends of wharf ship powered devices, the tension sensors are connected with a wharf ship, and the control device controls the opening of a cable winch to contract or release the cables when the wharf ship changes along with water level. The method solves the problems of high cable laying cost, short cable service life and potential safety hazard of the original ship shore power system, and has the characteristics of low construction cost, no need of high-altitude operation, accurate control of cable shrinkage release amount, long service life, safety and reliability.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a floor plan of fig. 1.
Fig. 3 is an enlarged schematic view of a portion a of fig. 1.
Fig. 4 is a schematic structural diagram of a bridge base and a bridge cover plate according to the present invention.
In the figure: the cable winch comprises a cable winch 1, a supporting platform 11, a cable releasing end 12, a control device 13, a cable bridge 2, a slope bank 21, a bridge base 22, anchoring parts 23, rollers 24, a bridge cover plate 25, a cable 3, a cable net sleeve 4, a tension sensor 5, a pontoon 6 and a pontoon powered device 61.
Detailed Description
As shown in fig. 1 to 4, a method for laying a power supply cable of a water head ship shore power system includes the following steps:
step 1: installing a cable winch 1;
step 2: installing a cable bridge 2;
and step 3: laying a cable 3;
and 4, step 4: installing a cable net sleeve 4;
and 5: the tension sensor 5 is installed.
In the step 1, a cable winch 1 is hoisted to a prefabricated supporting platform 11, and a cable release end 12 faces a pontoon 6; the mounting hole of the base of the cable winch 1 corresponds to the positioning hole on the supporting platform 11 and is connected and fixed by a fastener;
the control device 13 is located in the lower part of the support platform 11; the control circuit of the cable winch 1 is connected with the control equipment 13; the output of the tension sensor 5 is connected to a control device 13.
The detailed steps are as follows:
step 1-1: according to the actual weight of the cable winch 1, adopting hoisting equipment corresponding to the load and adapting to the load to drop the cable winch 1 onto the supporting platform 11;
step 1-2: a cable reel matched with the cable winch 1 turntable is placed on the turntable, one end of the cable is connected with a control device 13, and the other end of the cable is matched with a cable release end 12 for limiting;
step 1-3: adjusting the direction of the cable winch 1 to enable the cable release end 12 to face the pontoon 6;
step 1-4: and adjusting the base of the cable winch 1 to enable the mounting hole of the base to correspond to the positioning hole in the supporting platform 11 and be connected and fixed through a fastening piece.
In the step 2, a bridge base 22 of the cable bridge 2 is placed along the inclined slope 21, and two ends of a groove body of the bridge base 22 correspond to the cable release end 12 of the cable winch 1 and the pontoon 6; the anchoring piece 23 passes through the groove body of the bridge base 22 and is anchored with the slope 21.
The detailed steps are as follows:
step 2-1: laying a bridge base 22 on the inclined slope 21;
step 2-2: from the lower part of the cable release end 12, the cables are sequentially placed and extend towards the direction of the pontoon 6 to the lowest water level of the slope bank 21 and the pontoon 6;
step 2-3: the anchoring members 23 are pressed into the slope 21 from the groove bodies at both ends of the bridge base 22.
In step 3, pulling one end of the cable 3 from the cable releasing end 12 of the cable winch 1; the cable 3 is placed on a roller 24 in the bridge base 22 along the slope 21 and stretched to the pontoon 6;
the detailed steps are as follows:
step 3-1: the brake mechanism of the cable winch 1 is opened, and one end of the cable 3 is pulled from the cable release end 12 into the bridge base 22;
step 3-2: placing the cable 3 obliquely on the rollers 24 in the bridge base 22;
step 3-3: the pulling cable 3 extends from one end of the cable winch 1 to the pontoon 6, so that the end of the cable 3 can be connected with the pontoon powered device 61.
In the step 4, a cable net sleeve 4 is sleeved in the cable 3 positioned at one end of the pontoon 6; the cable 3 positioned at one end of the pontoon 6 is connected with the pontoon powered device 61; one end of the cable net sleeve 4 far away from the wharf boat 6 is fixed;
the detailed steps are as follows:
step 4-1: the cable net cover 4 is sleeved in the cable 3 positioned at one end of the pontoon 6;
step 4-2: one end of the cable 3 is connected with a wharf boat power receiving device 61;
step 4-3: one end of the cable net sleeve 4 far away from the pontoon 6 is fixed by a hoop.
In the step 5, one end of the cable net sleeve 4 close to the wharf boat 6 is connected with one end of the tension sensor 5; the other end of the tension sensor 5 is connected with a pontoon 6; a bridge cover 25 is placed over bridge base 22.
The bridge cover plate 25 is flexibly or elastically connected with the bridge base 22 and sinks and floats along with the water level fall.
The detailed steps are as follows:
step 5-1: one end of the cable net sleeve 4 close to the pontoon 6 is connected with one end of the tension sensor 5;
step 5-2: the other end of the tension sensor 5 is connected with the hull of the pontoon 6;
step 5-3: the power line at the output end of the tension sensor 5 extends from the bridge base 22 to the cable winch 1 along the cable 3, and then enters the lower part of the supporting platform 11 to be connected with the control equipment 13;
step 5-4: the earrings on both sides of the cover plate 25 are connected with the lapping ropes on the bridge base 22, and then the cover plate 25 is buckled with the bridge base 22.
According to the method for laying the power supply cable of the water head ship shore power system, when the method is installed and used, the cable bridge frame 2 is arranged along the inclined slope bank 21 to lay the cable 3, the cable 3 connected with one end of the pontoon powered device 61 is provided with the cable net sleeve 4 to be connected with the tension sensor 5, the tension sensor 5 is connected with the pontoon 6, the control device 13 controls the opening of the cable winch 1 to contract or release the cable 3 when the pontoon 6 changes along with the water level, the construction cost is low, high-altitude operation is not needed, the control on the cable contraction release amount is accurate, the service life is long, and the method is safe and reliable.
The cable winch 1 is used for contracting the cable 3 when tension between the cable net cover 4 and the pontoon 6 is over-tight;
the supporting platform 11 is used for supporting the weight of the cable winch 1 and bearing the tensile force of the pontoon 6, and also places the related control equipment 13 in the lower space so as to reduce the occupancy rate of the ground space and have low cost;
the cable releasing end 12 is used for guiding or positioning when the cable winch 1 releases or contracts the cable 3, so that the deviation of the cable releasing end is avoided;
the control device 13 is used for receiving an output signal sensed by the tension sensor 5, judging or comparing the output signal with a preset tension, and starting and stopping the motor of the cable winch 1 at the upper and lower limits of an output value, so that the motor is wound or unwound to release or contract the cable 3, the frequency of frequent contraction and release of the cable 3 is reduced, the service life of the cable winch is prolonged, automatic control is realized, and the operation is convenient;
the pontoon power receiving equipment 61 is used for receiving the high-voltage power provided by the control equipment 13 and is also responsible for distributing electric energy to each electric equipment of the pontoon 6;
the cable bridge 2 is used for placing and protecting the cable 3, so that the cable 3 is prevented from leaking and being exposed to the sun, the service life of the cable 3 is prolonged, no overhead is needed, and the cost is low;
the cable 3 and the roller 24 are in rolling friction, so that the friction resistance is small, and the service life of the cable 3 is prolonged;
the bridge cover plate 25 is movably connected with the bridge base 22 by a soft rope or an elastic rope, and the bridge cover plate 25 is a buoyancy plastic foam cover plate;
when the water level rises, the pontoon 6 gradually approaches to the shore, the tension between the cable net cover 4 and the pontoon 6 is reduced, the tension is detected by a PLC control system of a control device 13 after being sensed by a tension sensor 5, the control device 13 controls a motor of a cable winch 1 to be started, the cable winch 1 rotates to shrink the cable 3, and the tension stops when the tension reaches a preset value;
when the water level descends, the wharf boat 6 is gradually far away from the bank, the tension between the cable net sleeve 4 and the wharf boat 6 is increased, the tension sensor 5 senses the tension and then is detected by the PLC control system of the control device 13, the control device 13 controls the motor of the cable winch 1 to be started, the cable winch 1 rotates to release the cable 3, and the tension stops when the tension value reaches a preset value.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (2)
1. A method suitable for laying a power supply cable of a water head ship shore power system is characterized by comprising the following steps:
step 1: installing a cable winch (1); the cable winch (1) is hoisted to a prefabricated supporting platform (11), and a cable releasing end (12) faces to the wharf boat (6); the mounting hole of the base of the cable winch (1) corresponds to the positioning hole on the supporting platform (11) and is connected and fixed by a fastener;
step 2: installing a cable bridge (2);
covering a bridge cover plate (25) along the bridge base (22); the bridge cover plate (25) is flexibly or elastically connected with the bridge base (22) and sinks and floats along with the water level fall;
a bridge base (22) of the cable bridge (2) is placed along the inclined slope bank (21), and two ends of a groove body of the bridge base (22) correspond to a cable release end (12) of the cable winch (1) and the wharf boat (6); the anchoring piece (23) penetrates through the groove body of the bridge base (22) to be anchored with the slope (21);
and step 3: laying a cable (3);
pulling one end of the cable (3) from the cable release end (12) of the cable winch (1); the cable (3) is placed on a roller (24) in the bridge base (22) along the slope (21) and is stretched to the wharf boat (6);
and 4, step 4: installing a cable net sleeve (4); the cable net sleeve (4) is sleeved in the cable (3) positioned at one end of the wharf boat (6); one end of the cable net sleeve (4) far away from the wharf boat (6) is fixed; the cable (3) positioned at one end of the wharf boat (6) is connected with the wharf boat power receiving equipment (61);
and 5: a tension sensor (5) is installed; one end of the cable net sleeve (4) close to the wharf boat (6) is connected with one end of the tension sensor (5); the other end of the tension sensor (5) is connected with the wharf boat (6).
2. The method for laying the power supply cable of the water head ship shore power system as claimed in claim 1, wherein: the control equipment (13) is positioned at the lower part of the supporting platform (11); the control circuit of the cable winch (1) is connected with the control equipment (13); the output end of the tension sensor (5) is connected with the control equipment (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110002.0A CN109217181B (en) | 2018-09-21 | 2018-09-21 | Method suitable for laying power supply cable of water level difference ship shore power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811110002.0A CN109217181B (en) | 2018-09-21 | 2018-09-21 | Method suitable for laying power supply cable of water level difference ship shore power system |
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| CN109217181A CN109217181A (en) | 2019-01-15 |
| CN109217181B true CN109217181B (en) | 2020-11-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109896357A (en) * | 2019-02-21 | 2019-06-18 | 国电南瑞科技股份有限公司 | A kind of landing stage special intelligent twisted and released of the cable system |
| CN111634406A (en) * | 2020-01-07 | 2020-09-08 | 交通运输部水运科学研究所 | High-water-level-difference underwater cable boarding servo system |
| CN111769493B (en) * | 2020-07-15 | 2024-06-14 | 扬州市华宇电器设备有限公司 | Cable bridge based on control of Internet of things |
| CN112027814A (en) * | 2020-08-28 | 2020-12-04 | 许继电源有限公司 | Cable drum control method and cable drum control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100440660C (en) * | 2006-12-25 | 2008-12-03 | 山东铝业工程有限公司 | Mechanical laying method for overlength large section cable |
| US8061495B2 (en) * | 2007-11-20 | 2011-11-22 | Paceco Corp. | Rubber-tire gantry crane with shore power |
| CN101478124B (en) * | 2009-02-18 | 2011-01-12 | 中建八局第一建设有限公司 | Automatic laying method for electric cable and apparatus thereof |
| CN201408968Y (en) * | 2009-05-13 | 2010-02-17 | 江苏科技大学 | Shore power cable winch for ships |
| CN101707335A (en) * | 2009-11-12 | 2010-05-12 | 芜湖新兴铸管有限责任公司 | Large cable laying device |
| CN202243057U (en) * | 2011-08-26 | 2012-05-30 | 中交第二航务工程勘察设计院有限公司 | Shore-based power supply device of ships at river port |
| CN105584886B (en) * | 2015-11-23 | 2018-11-23 | 国网河北省电力有限公司沧州供电分公司 | A kind of control method of shipboard cable winch drive system |
| CN107508147A (en) * | 2017-08-30 | 2017-12-22 | 江苏耐维思通科技股份有限公司 | A kind of shipboard bank electricity extending capacity reformation electric supply installation |
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