CN112993871B - Seabed fluting rotary-cut and water spray aggregate unit - Google Patents
Seabed fluting rotary-cut and water spray aggregate unit Download PDFInfo
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- CN112993871B CN112993871B CN202110181353.6A CN202110181353A CN112993871B CN 112993871 B CN112993871 B CN 112993871B CN 202110181353 A CN202110181353 A CN 202110181353A CN 112993871 B CN112993871 B CN 112993871B
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- rotary
- drilling
- seabed
- slotting
- drilling head
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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
- H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
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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
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
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Abstract
The invention discloses a seabed slotting rotary-cutting and water spraying linkage device, and aims to solve the defects that the existing seabed slotting device is shallow in slotting depth of a seabed and is not beneficial to burying a submarine cable. The rotary-cut high-pressure water flushing device comprises a mounting frame, a drilling head and a row of rotary-cut heads, wherein the drilling head and the row of rotary-cut heads are mounted on the mounting frame; the installation of erection lift pneumatic cylinder, liftable connecting seat on the mount frame, the lift pneumatic cylinder piston rod is connected with the connecting seat, installs the drilling hydraulic motor that drives the drilling head pivoted on the connecting seat, installs the position sleeve on the drilling hydraulic motor output shaft, installs the lifter of liftable in the position sleeve, installs the pretension spring between lifter and the position sleeve, and the lifter rotates with the position sleeve is synchronous, and the lifter links together with the drilling head. The seabed slotting rotary-cutting and water spraying linkage device directly washes silt out of the groove through high-pressure water in the process of slotting on the seabed, and slotting depth is guaranteed.
Description
Technical Field
The invention relates to a submarine cable laying technology, in particular to a submarine slotting rotary cutting and water spraying linkage device.
Background
At present, when a submarine cable is laid, grooving operation needs to be carried out on the seabed, then the cable is laid in a groove, and the cable is protected by covering silt. At present, a grooving device hoisted by a cable laying ship is generally adopted to perform grooving operation on the seabed, but silt easily slides into a groove in the grooving process, so that the grooving depth is shallow, and the burying of a cable is not facilitated.
Disclosure of Invention
The invention overcomes the defects that the existing submarine slotting device has shallow slotting depth on the seabed and is not beneficial to burying submarine cables, and provides a submarine slotting rotary-cutting and water-spraying linkage device which directly washes silt out of a groove through high-pressure water in the process of slotting on the seabed, so that the silt is prevented from sliding into the groove, the slotting depth is ensured, and the submarine cables are favorably laid.
In order to solve the technical problems, the invention adopts the following technical scheme: a seabed slotting rotary-cutting and water spraying linkage device comprises a mounting frame, a drilling head and a row of rotary-cutting heads, wherein the drilling head and the row of rotary-cutting heads are mounted on the mounting frame; the installation of erection lift pneumatic cylinder, liftable connecting seat on the mount frame, the lift pneumatic cylinder piston rod is connected with the connecting seat, installs the drilling hydraulic motor that drives the drilling head pivoted on the connecting seat, installs the position sleeve on the drilling hydraulic motor output shaft, installs the lifter of liftable in the position sleeve, installs the pretension spring between lifter and the position sleeve, and the lifter rotates with the position sleeve is synchronous, and the lifter links together with the drilling head.
When the seabed grooving and rotary cutting and water spraying linkage device works, the device is lifted by a cable laying ship and sinks to the seabed, then the lifting hydraulic cylinder pushes the connecting seat to move downwards, the drilling head is started to rotate to drill the seabed, and the lifting mounting frame moves back and forth while drilling, so that the drilling range is enlarged. When hard rocks are encountered in the drilling process, the pre-tightening spring enables the drilling head to buffer upwards, the effect of shaking up and down is generated, the drilling effect is improved, and the phenomenon of clamping stagnation and stalling is avoided. After the depth of the drilled hole can accommodate all the rotary cutting heads, the drilling heads stop rotating, the lifting hydraulic cylinder drives the drilling heads to move upwards and return, the rotary cutting heads are arranged in the holes at the moment, the rotary cutting heads are started to rotate, one side of the rotary cutting heads which are transversely arranged rotates, and the rotary cutting heads are pulled by a cable laying boat crane to move forwards, so that grooving operation is performed. High-pressure water flow is sprayed outwards through the high-pressure flushing pipe in the grooving process, silt is sprayed outwards, and the silt is prevented from sliding into the groove. The seabed slotting rotary-cutting and water spraying linkage device can directly wash silt out of the groove through high-pressure water in the process of slotting on the seabed, so that the silt is prevented from sliding into the groove, the slotting depth is ensured, and the submarine cable can be laid conveniently.
Preferably, be equipped with a plurality of installation cavity on the first outer wall of drilling, the cartridge case is fried in the installation cavity, the explosive cartridge incasement is equipped with the explosive, the installation is used for detonating the touch switch of explosive on the cartridge case, a plurality of ejector pins are installed with the touch switch one-to-one in the drilling head, connect positioning spring between ejector pin and the drilling head, sliding sleeve is equipped with the butt cover on the lifter, install spacing spring between butt cover and the drilling head, a plurality of ejector pin upper end high position diverse, but butt cover upper end butt is to the locating sleeve, but butt cover lower extreme butt is to on the ejector pin and promote the ejector pin to move down.
The drilling head is at the while drilling down in-process, runs into hard rock and can not continue down when boring, and the drilling head can rebound for the position sleeve this moment, on butt sleeve upper end butt to the position sleeve, the lower extreme butt made to the ejector pin, and butt sleeve promotes the ejector pin and moves down, and on the ejector pin lower extreme butt touched the switch, triggered the explosive cartridge case that corresponds and taken place the explosion, and the shock wave of production impacted the drilling position, explodes the garrulous rock, is convenient for subsequent drilling operation.
Preferably, the mounting frame is provided with a guide rod, and the connecting seat is movably sleeved with the guide rod. The connecting seat can slide up and down on the guide rod, and is stable and reliable.
Preferably, the drilling head and the ejector rod are correspondingly provided with positioning holes, the ejector rod is inserted into the positioning holes in an adaptive mode, the lower end of the ejector rod is connected with a positioning nut, the upper portion of the ejector rod is provided with a convex ring, and the positioning spring abuts against the position between the convex ring and the drilling head. The ejector pin is installed in the locating hole, and is steady reliable.
Preferably, the high-pressure flushing pipe comprises a water feeding section and a flushing section, the water feeding section is provided with a steering seat, one end of the flushing pipe is provided with a universal ball, a pulling spring is connected between the other end of the flushing pipe and the rotary cutting head, the steering seat is provided with a spherical groove, and the universal ball is rotatably mounted in the spherical groove.
In the rotating process of the rotary cutting head, the flushing pipe can swing outwards under the action of centrifugal force, so that the spraying range of water flow can be expanded, and silt can be flushed out of the groove outwards.
Preferably, the rotary cutter head and the flushing section are correspondingly provided with a partition plate, and the flushing section is arranged outside the partition plate. The partition plate plays a good role in isolation, and prevents silt from entering the rotary cutting head in the working process of the rotary cutting head.
Preferably, the mounting frame and the rotary cutting head are correspondingly provided with connecting plates, one end of each connecting plate is rotatably mounted on the mounting frame, the other end of each connecting plate is provided with a sliding groove, the mounting frame and the sliding grooves are correspondingly provided with abutting columns, the abutting columns are inserted into the sliding grooves, abutting springs are mounted in the sliding grooves, and the abutting springs abut against the abutting columns; the rotary cutting head is connected with a rotating shaft driven to rotate by a rotary cutting hydraulic motor, the rotating shaft and the rotary cutting hydraulic motor are both arranged on a connecting plate, a transmission gear and a pushing cam are arranged on the connecting plate, the outer wall of the pushing cam can abut against the abutting column and push the connecting plate to move, the transmission gear is connected with a driving bevel gear, the pushing cam is connected with a driven bevel gear, the driving bevel gear is in meshing transmission with the driven bevel gear, a driving gear is correspondingly arranged on the rotating shaft and corresponds to the transmission gear, and the driving gear is in meshing transmission with the transmission gear.
The rotary cutting head is driven to rotate by the rotation of the rotating shaft, the pushing cam is driven to rotate in the rotating process of the rotating shaft, and continuously slides over the abutting column, so that the connecting plate is pushed to move left and right, the rotary cutting head swings left and right in the working process, the grooving operation of the rotary cutting head is facilitated, and the phenomenon that the rotary cutting head is clamped and stops is avoided.
Compared with the prior art, the invention has the beneficial effects that: (1) the seabed slotting rotary-cutting and water spraying linkage device directly washes silt out of the groove through high-pressure water in the process of slotting on the seabed, so that the silt is prevented from sliding into the groove, the slotting depth is ensured, and the submarine cable is favorably laid; (2) the clamping stagnation and the rotation stop phenomenon cannot occur in the process of downwards drilling the drill hole, and the drilling is convenient and reliable; (3) the rotary cutting head can not be blocked in the process of rotating and slotting, the slotting effect is good, and the working efficiency is high.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a connection structure of the drill bit of the present invention;
FIG. 3 is a schematic view of the connection structure of the rotary cutting head of the present invention;
in the figure: 1. the device comprises a mounting frame, 2, a drilling head, 3, a rotary cutting head, 4, a high-pressure flushing pipe, 5, a lifting hydraulic cylinder, 6, a connecting seat, 7, a drilling hydraulic motor, 8, a positioning sleeve, 9, a lifting rod, 10, a pre-tightening spring, 11, a mounting cavity, 12, an explosive cartridge, 13, a touch switch, 14, an ejector rod, 15, a positioning spring, 16, a butting sleeve, 17, a limiting spring, 18, a guide rod, 19, a water feeding section, 20, a flushing section, 21, a steering seat, 22, a universal ball, 23, a pulling spring, 24, a partition plate, 25, a connecting plate, 26, a sliding groove, 27, a butting column, 28, a butting spring, 29, a rotary cutting hydraulic motor, 30, a rotating shaft, 31, a transmission gear, 32, a pushing cam, 33, a driving bevel gear, 34, a driven bevel gear, 35, a driving gear, 36, a through water column, 37, an annular water cavity, 38 and a fixed disc.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): a seabed slotting rotary-cutting and water spraying linkage device (see attached figures 1 to 3) comprises a mounting frame 1, drilling heads 2 and a row of rotary-cutting heads 3, wherein the drilling heads 2 and the row of rotary-cutting heads 3 are arranged on the mounting frame in a sequentially and backward deviating way from top to bottom. The front end of the rotary cutting head is arranged obliquely upwards. The rotary cutting head is provided with a plurality of high-pressure flushing pipes 4, and the opening ends of the high-pressure flushing pipes are exposed out of the outer wall of the rotary cutting high-pressure head; the installation lifting hydraulic cylinder 5, the connecting seat 6 of liftable on the mount frame, the lifting hydraulic cylinder piston rod is connected with the connecting seat, installation drive drilling head pivoted drilling hydraulic motor 7 on the connecting seat, installation position sleeve 8 on the drilling hydraulic motor output shaft, installation liftable lifter 9 in the position sleeve, installation pretension spring 10 between lifter and the position sleeve, lifter and position sleeve rotate in step, the lifter links together with the drilling head. The end cover is connected to the position sleeve lower extreme, and the lifter upper end is equipped with square slider, and slider slidable mounting is in the position sleeve and is supported on the end cover.
Be equipped with a plurality of installation cavity 11 on the first outer wall of drilling, installation intracavity installation cartridge case 12, the explosive is equipped with the explosive in the cartridge case, the installation is used for detonating the touch switch 13 of explosive on the cartridge case, a plurality of ejector pins 14 are installed with the touch switch one-to-one in the drilling head, connect positioning spring 15 between ejector pin and the drilling head, sliding sleeve is equipped with butt cover 16 on the lifter, install limiting spring 17 between butt cover and the drilling head, a plurality of ejector pin upper end high position diverse, but butt cover upper end butt is to the locating sleeve, but the butt cover lower extreme can be to on the ejector pin and promote the ejector pin to move down. The mounting frame is provided with a guide rod 18, and the connecting seat is movably sleeved with the guide rod. The drilling head is internally provided with a positioning hole corresponding to the ejector rod, the ejector rod is inserted into the positioning hole in a matching manner, the lower end of the ejector rod is connected with a positioning nut, the upper part of the ejector rod is provided with a convex ring, and a positioning spring is abutted between the convex ring and the drilling head.
The high-pressure flushing pipe comprises a water feeding section 19 and a flushing section 20, a steering seat 21 is arranged on the water feeding section, a universal ball 22 is arranged at one end of the flushing pipe, a pulling spring 23 is connected between the other end of the flushing pipe and the rotary cutting head, a spherical groove is arranged on the steering seat, and the universal ball is rotatably arranged in the spherical groove. The rotary cutter head and the flushing section are correspondingly provided with a partition plate 24, and the flushing section is arranged outside the partition plate.
A connecting plate 25 is correspondingly arranged on the mounting frame and the rotary cutting head, one end of the connecting plate is rotatably arranged on the mounting frame, the other end of the connecting plate is provided with a sliding groove 26, a butting column 27 is correspondingly arranged on the mounting frame and the sliding groove, the butting column is inserted into the sliding groove, a butting spring 28 is arranged in the sliding groove, and the butting spring butts against the butting column; the rotary cutting head is connected with a rotating shaft 30 driven by a rotary cutting hydraulic motor 29 to rotate, the rotating shaft and the rotary cutting hydraulic motor are both arranged on a connecting plate, a transmission gear 31 and a pushing cam 32 are arranged on the connecting plate, the outer wall of the pushing cam can abut against the abutting column and push the connecting plate to move, the transmission gear is connected with a driving bevel gear 33, the pushing cam is connected with a driven bevel gear 34, the driving bevel gear is in meshing transmission with the driven bevel gear, a driving gear 35 is arranged on the rotating shaft corresponding to the transmission gear, and the driving gear is in meshing transmission with the transmission gear.
The rotary cutting head is internally provided with a water through column 36, the water through column is provided with a mounting hole, a rotating shaft penetrates through the mounting hole, an annular water cavity 37 is arranged in the water through column, the high-pressure flushing pipe is communicated with the annular water cavity, the rear end of the water through column is rotatably provided with a fixed disc 38, the fixed disc is fixedly mounted on the connecting plate, the fixed disc is provided with a water through hole communicated with the annular water cavity, and the water through hole is connected with a water supply pipe.
When the seabed slotting and rotary-cutting and water spraying linkage device works, the device is lifted by a cable laying ship to sink to the seabed, then the lifting hydraulic cylinder pushes the connecting seat to move downwards, the drilling head is started to rotate to drill the seabed, the mounting frame is lifted to move back and forth while drilling, and the drilling range is enlarged. When hard rocks are encountered in the drilling process, the pre-tightening spring enables the drilling head to buffer upwards, the effect of shaking up and down is generated, the drilling effect is improved, and the phenomenon of clamping stagnation and stalling is avoided. After the depth of the drilled hole can accommodate all the rotary cutting heads, the drilling heads stop rotating, the lifting hydraulic cylinder drives the drilling heads to move upwards and return, the rotary cutting heads are arranged in the holes at the moment, the rotary cutting heads are started to rotate, one side of the rotary cutting heads which are transversely arranged rotates, and the rotary cutting heads are pulled by a cable laying boat crane to move forwards, so that grooving operation is performed. High-pressure water flow is sprayed outwards through the high-pressure flushing pipe in the grooving process, silt is sprayed outwards, and the silt is prevented from sliding into the groove. The seabed slotting rotary-cutting and water spraying linkage device directly washes silt out of the groove through high-pressure water in the process of slotting on the seabed, prevents the silt from sliding into the groove, ensures the slotting depth and is beneficial to the arrangement of submarine cables.
The drilling head during the drilling process downwards, run into hard rock and can not continue down when boring, drilling head can rebound for the position sleeve this moment, on butt cover upper end butt to the position sleeve, the lower extreme butt to the ejector pin makes, butt cover promotes the ejector pin and moves down, on the ejector pin lower extreme butt touched the switch, triggered the explosive cartridge case that corresponds and taken place the explosion, the shock wave of production strikeed the drilling position, explodes the garrulous rock, subsequent drilling operation of being convenient for.
The rotary cutting head is driven to rotate by the rotation of the rotating shaft, the pushing cam is driven to rotate in the rotating process of the rotating shaft, and continuously slides over the abutting column, so that the connecting plate is pushed to move left and right, the rotary cutting head swings left and right in the working process, the grooving operation of the rotary cutting head is facilitated, and the phenomenon that the rotary cutting head is clamped and stops is avoided.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.
Claims (6)
1. A seabed slotting rotary-cutting and water spraying linkage device is characterized by comprising a mounting frame, a drilling head and a row of rotary-cutting heads, wherein the drilling head and the row of rotary-cutting heads are mounted on the mounting frame; a lifting hydraulic cylinder and a liftable connecting seat are arranged on the mounting frame, a piston rod of the lifting hydraulic cylinder is connected with the connecting seat, a drilling hydraulic motor for driving a drilling head to rotate is arranged on the connecting seat, a positioning sleeve is arranged on an output shaft of the drilling hydraulic motor, a liftable lifting rod is arranged in the positioning sleeve, a pre-tightening spring is arranged between the lifting rod and the positioning sleeve, the lifting rod and the positioning sleeve synchronously rotate, and the lifting rod is connected with the drilling head; be equipped with a plurality of installation cavity on the first outer wall of drilling, the cartridge case is exploded in the installation cavity installation, the explosive cartridge incasement is equipped with the explosive, the installation is used for detonating the touch switch of explosive on the cartridge case, a plurality of ejector pins are installed with the touch switch one-to-one in the drilling head, connect positioning spring between ejector pin and the drilling head, sliding sleeve is equipped with the butt cover on the lifter, install limit spring between butt cover and the drilling head, a plurality of ejector pin upper end high position diverse, but butt cover upper end butt is to the locating sleeve, but the butt cover lower extreme can be to on the ejector pin and promote the ejector pin downstream.
2. The seafloor slotting rotary-cut and water-spraying linkage device as claimed in claim 1, wherein the mounting frame is provided with a guide rod, and the connecting seat is movably sleeved with the guide rod.
3. The seabed grooving turning-cutting and water spraying linkage device as claimed in claim 1, wherein the drilling head is provided with a positioning hole corresponding to the ejector rod, the ejector rod is inserted into the positioning hole, the lower end of the ejector rod is connected with the positioning nut, the upper part of the ejector rod is provided with a convex ring, and the positioning spring abuts between the convex ring and the drilling head.
4. The seabed slotting turning and water spraying linkage device as claimed in claim 1, wherein the high pressure flushing pipe comprises a water feeding section and a water flushing section, the water feeding section is provided with a steering seat, one end of the flushing pipe is provided with a universal ball, a pulling spring is connected between the other end of the flushing pipe and the turning head, the steering seat is provided with a spherical groove, and the universal ball is rotatably mounted in the spherical groove.
5. The seabed slotting rotary cutting and water spraying linkage device according to claim 4, wherein the rotary cutting head is provided with a separation plate corresponding to the water flushing section, and the water flushing section is arranged outside the separation plate.
6. The seabed slotting and rotary-cutting and water-spraying linkage device as claimed in any one of claims 1 to 5, wherein a connecting plate is correspondingly arranged on the mounting frame and the rotary-cutting head, one end of the connecting plate is rotatably arranged on the mounting frame, the other end of the connecting plate is provided with a sliding groove, a butting column is correspondingly arranged on the mounting frame and the sliding groove, the butting column is inserted into the sliding groove, a butting spring is arranged in the sliding groove, and the butting spring is butted against the butting column; the rotary cutting head is connected with a rotating shaft driven to rotate by a rotary cutting hydraulic motor, the rotating shaft and the rotary cutting hydraulic motor are both arranged on a connecting plate, a transmission gear and a pushing cam are arranged on the connecting plate, the outer wall of the pushing cam can abut against the abutting column and push the connecting plate to move, the transmission gear is connected with a driving bevel gear, the pushing cam is connected with a driven bevel gear, the driving bevel gear is in meshing transmission with the driven bevel gear, a driving gear is correspondingly arranged on the rotating shaft and corresponds to the transmission gear, and the driving gear is in meshing transmission with the transmission gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110181353.6A CN112993871B (en) | 2021-02-09 | 2021-02-09 | Seabed fluting rotary-cut and water spray aggregate unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110181353.6A CN112993871B (en) | 2021-02-09 | 2021-02-09 | Seabed fluting rotary-cut and water spray aggregate unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112993871A CN112993871A (en) | 2021-06-18 |
| CN112993871B true CN112993871B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110181353.6A Active CN112993871B (en) | 2021-02-09 | 2021-02-09 | Seabed fluting rotary-cut and water spray aggregate unit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201433411Y (en) * | 2009-01-23 | 2010-03-31 | 张本照 | Dual-purpose machine for yam gouging and cable rope burying |
| CN104314127A (en) * | 2014-04-23 | 2015-01-28 | 中国石油大学(华东) | Submarine pipeline laying machine and hydraulic jetting combined rotating ditcher for 500-meter deep hardpan |
| CN111472780A (en) * | 2020-04-14 | 2020-07-31 | 西安闪光能源科技有限公司 | Rock pre-splitting method for mine rock roadway driving working face |
| CN111733912A (en) * | 2020-07-07 | 2020-10-02 | 天津市精研工程机械传动有限公司 | Underwater trencher with multiple stranding cages and step structure arrangement |
-
2021
- 2021-02-09 CN CN202110181353.6A patent/CN112993871B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201433411Y (en) * | 2009-01-23 | 2010-03-31 | 张本照 | Dual-purpose machine for yam gouging and cable rope burying |
| CN104314127A (en) * | 2014-04-23 | 2015-01-28 | 中国石油大学(华东) | Submarine pipeline laying machine and hydraulic jetting combined rotating ditcher for 500-meter deep hardpan |
| CN111472780A (en) * | 2020-04-14 | 2020-07-31 | 西安闪光能源科技有限公司 | Rock pre-splitting method for mine rock roadway driving working face |
| CN111733912A (en) * | 2020-07-07 | 2020-10-02 | 天津市精研工程机械传动有限公司 | Underwater trencher with multiple stranding cages and step structure arrangement |
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| CN112993871A (en) | 2021-06-18 |
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Effective date of registration: 20221123 Address after: 316100 No.10, TIYU Road, Lincheng street, Dinghai District, Zhoushan City, Zhejiang Province Patentee after: ZHEJIANG MARINE DEVELOPMENT Research Institute Patentee after: ZHEJIANG ZHOUSHAN INSTITUTE OF OCEANIC ELECTRIC POWER TRANSMISSION, Co.,Ltd. Patentee after: STATE GRID ZHEJIANG ELECTRIC POWER CO., LTD. ZHOUSHAN POWER SUPPLY Co. Address before: 316100 No.10, TIYU Road, Lincheng street, Dinghai District, Zhoushan City, Zhejiang Province Patentee before: ZHEJIANG MARINE DEVELOPMENT Research Institute |