CN202708394U - Hydraulic underwater pipeline connector - Google Patents

Hydraulic underwater pipeline connector Download PDF

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Publication number
CN202708394U
CN202708394U CN 201220334348 CN201220334348U CN202708394U CN 202708394 U CN202708394 U CN 202708394U CN 201220334348 CN201220334348 CN 201220334348 CN 201220334348 U CN201220334348 U CN 201220334348U CN 202708394 U CN202708394 U CN 202708394U
Authority
CN
China
Prior art keywords
adpting flange
piston
flange
hydraulic
interface socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220334348
Other languages
Chinese (zh)
Inventor
黄河
周声结
陈开发
井元彬
张举鹏
王文龙
齐效文
陈大江
涂再君
梁思颖
陈跃明
丘超鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd
China National Offshore Oil Corp CNOOC
China National Offshore Oil Corp Zhanjiang Branch
Original Assignee
MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd
China National Offshore Oil Corp CNOOC
China National Offshore Oil Corp Zhanjiang Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd, China National Offshore Oil Corp CNOOC, China National Offshore Oil Corp Zhanjiang Branch filed Critical MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd
Priority to CN 201220334348 priority Critical patent/CN202708394U/en
Application granted granted Critical
Publication of CN202708394U publication Critical patent/CN202708394U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a hydraulic underwater pipeline connector, which comprises an upper connecting flange and a lower connecting flange. After the upper and lower connecting flanges are connected, a center hole of a pipeline is closed. The upper connecting flange is fixedly connected with a hydraulic cylinder body in which an annular piston is arranged. An upper cavity body and a lower cavity body are formed in the piston. Clamping teeth capable of locking or releasing the connection of the upper and lower connecting flanges under the influence of the piston are distributed outside the piston. Pull rods are fixed on the piston. The other ends of the pull rods extend from the upper connecting flange, and are connected with pull rings. A center hole of the upper connecting flange is fixedly provided with a guide ring which is longer than the lower end face of the upper connecting flange. An inclined surface is arranged on the inner wall of a center hole of the lower connecting flange. A steel sealing ring is arranged on the outer wall of the guide ring. The guide ring has a centering guide function, so that the upper and lower connecting flanges can be connected in place at one time to avoid a collision phenomenon. Each working oil pipe joint is supercharged and decompressed respectively, so that the connecting flanges can be locked and released. By the pull rods on the piston, the opening and closing condition of the connector can be recognized, and the connector can be conveniently lifted, and can be opened by the pull rods when hydraulic power fails.

Description

Hydraulic type submarine pipeline connector
Technical field
The utility model relates to a kind of connector of petroleum pipeline under water in the petroleum drilling and mining industry submarine pipeline docking technique, particularly a kind ofly can bear the hydraulic type submarine pipeline connector that works under the high-temperature high-pressure state.
Background technique
The marine oil gas field puts off very remote, need the petroleum pipeline of tens kilometers of layings even hundreds of kilometer as transport system, so the interconnection technique of seabed submarine pipeline becomes important step in the marine petroleum exploitation.Usually adopt flange-type to connect in the tradition submarine pipeline docking technique, operated under water by the diver, but because diver's submerged depth is limited, work between the 0-100 rice under water.The China's oil industry more and more enters into the deep-sea now, the general depth of water is about 400 meters, if replace diver's work by underwater robot, it is very complicated loaded down with trivial details that the flange-type docking mode seems concerning underwater robot, need the cost plenty of time to debug, the labour loses money, and has greatly increased cost and the duration of offshore oil industry.So conventional flange formula pipeline docking technique can't satisfy the demand of present deep ocean work.
In addition, hydraulic lock compact form pipe jointer of the prior art is a kind of riser connector, although it is realized in pipeline docking operation up and down relatively easily, but also the phenomenon of colliding with can appear, cause sealing steel rings in being lowered to process, to be bruised, have a strong impact on the working efficiency of pipeline centering connection and the sealing effect of connector.
Summary of the invention
Technical problem to be solved in the utility model is to overcome existing defective in the above-mentioned prior art, and a kind of hydraulic type submarine pipeline connector that can conveniently make the realization centering of upper and lower adpting flange when seabed operation is provided.
The utility model has adopted following technical proposal to solve its technical problem: a kind of hydraulic type submarine pipeline connector, comprise, lower adpting flange, upward the upper end of adpting flange and the upper flange of an end connecting tube are fixedly connected, one end of this time adpting flange directly is fixedly connected with another pipeline, after upper adpting flange and corresponding being fixedly connected with of lower adpting flange, the pipeline mesopore is sealed shape, it is characterized in that: described upper adpting flange is fixedly connected with a sheathed hydraulic cylinder thereon, this hydraulic cylinder is built-in with the annular piston that can slide up and down along the hydraulic cylinder inwall, also be equipped with a space ring on this hydraulic cylinder inwall, this space ring is divided into two into upper cavity and lower chamber with cylinder inboard wall with the cavity that piston inner wall consists of, have at least two affected by piston up-down can to pin or discharge along the flange radial motion, the card tooth that lower adpting flange connects is distributed on around the piston outside, have at least a pull bar one end to be fixedly connected on the piston, the other end was fixedly connected with draw ring after passing through adpting flange, the bottom of upper adpting flange mesopore is fixedly equipped with a guide ring, the upper of adpting flange lower end is longer than in this guide ring lower end, lower adpting flange junction plane, the upper end inwall of lower adpting flange mesopore is equipped with one section inclined-plane that internal diameter is up big and down small, guide ring outer wall upper, lower adpting flange junction plane place also is fixedly equipped with a sealing steel rings.
The hydraulic type submarine pipeline connector fitting operation that the utility model provides is convenient; its guide ring can play the centering leading role; being conducive to the disposable installation connection of upper and lower adpting flange puts in place; avoid being lowered to process and the phenomenon of colliding with occurred, further protected sealing steel rings injury-free in being lowered to process.The utility model is by the supercharging pressure release of underwater robot (ROV) operation hydraulic power unit (HPU) to each working tubing interface, to realize locking and the release of the upper and lower adpting flange of connector.The utility model is by installing raising rod additional at piston, folding situation that can clear identification connector, and can lift easily connector, and when hydraulic power unit lost efficacy, can also connector be opened by upper lifting rod, play the double insurance effect.
The utility model is realized the secondary auto-lock function: the product of former similar structure in long using process, thereby can exist the card odontoseisis phenomenon of leaking to occur.The utility model is in order to overcome the loosening phenomenon in the using process, designed the secondary auto-lock function, at first annular piston becomes 4 ° of angles (obtaining posterior infromation by test) with the card tooth after the hydraulic connector locking, under this angle, as calculated when bearing rated working pressure, the thrust that inner pressurized produces, the power that decomposes Vertical direction is not enough to overcome the deadweight of Ka Ya and annular piston and the frictional force between card tooth and the annular piston, therefore block tooth be in locking state in the using process for a long time always, can not unclamp.Secondly after hydraulic connector locking, up and down two cavity outlets of oil hydraulic cylinder are all blocked with blind plugging, when there is pressure inside, the stressed card tooth that acts on of upper and lower adpting flange, tooth is stressed outwards opens for card, the card tooth open can cause annular piston on move, because this moment, cavity was in closed state up and down, move on the annular piston and can cause the up and down pressure variation of cavity, limited the motion of annular piston, therefore can form self-locking, keep the card tooth to be in locking state.
The utility model main parts size adopts corrosion resistant alloy, and the surface carries out anticorrosion PTFE coating and process, and can tolerate the corrosion of seawater and high-temperature oil gas, has increased working life.
Description of drawings
Fig. 1 is the upper and lower adpting flange of the utility model structural representation in opened condition.
Fig. 2 is the structural representation that the upper and lower adpting flange of the utility model is closed state.
Fig. 3 is the distributed architecture schematic representation of card tooth among the utility model embodiment.
Each sequence number is expressed as respectively among the figure:
The upper adpting flange of 1-; 1.1-upper adpting flange inclined-plane boss;
Adpting flange under the 2-; 2.1-lower adpting flange inclined-plane boss; 2.2-lower adpting flange inclined-plane;
The 3-bolt and nut; The 4-upper flange;
The 5-hydraulic cylinder; 5.1-space ring; 5.2-upper cavity; 5.3-lower chamber;
The 6-screw; The 7-piston; 7.1-piston side;
8-card tooth; 8.1-card tooth side; 8.2-card tooth inclined-plane breach;
The 9-locating stud; The 10-guide ring; The 11-sealing steel rings; The 12-pull bar; The 13-draw ring;
14-working tubing interface socket support;
15-upper cavity working tubing interface socket; 15.1-pipeline;
16-lower chamber working tubing interface socket; 16.1-pipeline;
17-sealing steel rings pressure testing tubing interface socket; 17.1-pipeline;
18-pressure testing plug.
Embodiment
The utility model will be further described below in conjunction with embodiment and accompanying drawing.
With reference to accompanying drawing, the utility model comprises on one adpting flange 1 and adpting flange 2 once.Upward the upper end of adpting flange 1 is fixedly connected with the upper flange 4 that an end is connected pipeline under the ocean (not shown in FIG.) by bolt and nut 3, and an end of this time adpting flange 2 directly is fixedly connected with another pipeline under the ocean (not shown in FIG.).If after upper adpting flange 1 and lower adpting flange 2 corresponding being fixedly connected with, the pipeline mesopore should be sealed shape.
The utility model is set in a hydraulic cylinder 5 outside the upper adpting flange 1, and is fixedly connected with by screw 6.This hydraulic cylinder 5 is built-in with the annular piston 7 that can slide up and down along hydraulic cylinder 5 inwalls, also be equipped with a space ring 5.1 on these hydraulic cylinder 5 inwalls, this space ring 5.1 is divided into two into upper cavity 5.2(referring to Fig. 1 with the cavity that cylinder inboard wall and piston 7 inwalls consist of) and lower chamber 5.3(referring to Fig. 2).
The utility model is equipped with two card teeth 8 at least, and this card tooth 8 is moved up and down by piston 7 to affect and can pin or discharge the connection that go up adpting flange 1 and lower adpting flange 2 along the flange radial motion, and be distributed on piston 7 outsides around.See also Fig. 3, the card tooth 8 described in the present embodiment is 18, and a side of each piece card tooth 8 has one to be used for limiting two locating studs 9 of outwards giving prominence to that block spacing between the teeth 8.
The ring-type inclined-plane that piston described in the utility model 7 its sides 7.1 that contact with card tooth 8 from bottom to top reduce gradually for diameter.Described card tooth 8 its sides 8.1 with piston 7 contacts are equipped with the inclined-plane corresponding with piston 7.
Card tooth 8 opposite sides described in the utility model are equipped with the inclined-plane breach 8.2 of can snap close living in adpting flange 1 and lower adpting flange 2, and upper adpting flange 1 and lower adpting flange 2 outsides also are equipped with respectively the inclined-plane boss 1.1 and 2.1 corresponding with blocking tooth 8 ramp breach 8.2.
For making smoothly centering access of upper and lower adpting flange when the seabed operation, avoid occurring the phenomenon of colliding with, the utility model is fixedly equipped with a guide ring 10 in the bottom of upper adpting flange 1 mesopore, these guide ring 10 lower ends stretch out and are longer than upper and lower adpting flange 2 junction planes of adpting flange 1 lower end, the upper end inwall of lower adpting flange 2 mesopores is equipped with one section inclined-plane 2.2 that internal diameter is up big and down small, and the upper and lower adpting flange 2 junction plane places of guide ring 10 outer walls also are fixedly equipped with a sealing steel rings 11.
The utility model is fixedly connected on the piston 7 to an end of a pull bar 12 of major general, and its other end was fixedly connected with draw ring 13 after passing through adpting flange 1, is equipped with the scale that can identify piston 7 height on the described pull bar 12.Present embodiment with two pull bar 12 symmetrical placement on piston 7.The raising rod 12 of the utility model by installing additional at piston 7, folding situation that can clear identification connector also can lift connector easily, and when hydraulic power unit lost efficacy, connector can be opened by upper lifting rod 12, play the double insurance effect.
The utility model is fixedly equipped with working tubing interface socket support 14 outside hydraulic cylinder 5, be equipped with respectively oil hydraulic cylinder upper cavity working tubing interface socket 15, lower chamber working tubing interface socket 16 and sealing steel rings pressure testing tubing interface socket 17 on this working tubing interface socket support 14, upper cavity working tubing interface socket 15 is communicated with upper cavity 5.2, lower chamber working tubing interface socket 16 by pipeline 16.1 connection lower chambers 5.3 by pipeline 15.1, and sealing steel rings pressure testing tubing interface socket 17 is by pipeline 17.1 communication seals steel ring pressure testings zone.
Below sketch installation and adjustment of the present utility model:
1, the installation and adjustment of land.
(1) with lower adpting flange 2 and manifold welding.
(2) metal o-ring of replacing connector body inside is installed together upper flange 4 and upper adpting flange 1, and the upper adpting flange 1 of then slinging is observed by robot (ROV) vidicon camera, with lower adpting flange 2 centerings, slowly is lowered to merging.
(3) the pressure testing plug 18 of the good hydraulic power unit of a termination (HPU) is inserted panel upper and lower cavity body running tubing interface socket 16 places (oil pocket cavity of resorption) of working tubing interface socket supports 14, it is carried out oiling, until pressure reaches 1500PSI, 8 lockings of card tooth, pressure release to 0.
(4) extract pressure testing plug 18, the blind plugging plug is inserted panel upper and lower cavity body running tubing interface socket 16 and upper cavity working tubing interface socket 15 places.
(5) pressure testing plug 18 is inserted sealing steel rings pressure testing tubing interface socket 17 places (pre-sealed test port) on the panel, it is suppressed 500PSI, its sealability is confirmed in pressurize 5 minutes.
If pressure testing plug 18 is then extracted in the pressurize success, the blind plugging plug is inserted sealing steel rings pressure testing tubing interface socket 17 places on the panel, such as the pressurize failure, confirm whether high pressure line and outer surface have leakage, if any leakage, change pipeline, leak such as nothing, then counter plate upper cavity working tubing interface socket 15 places suppress, and will block tooth 8 and open, and take out lower adpting flange 2, and change sealing steel rings 11, again (1), (2), (3), (4) step.
(6) after the sealability test was finished, connector just can together be plunged into the commercial sea with the manifold sled.
2,Installation and adjustment under water.
(1) underwater robot (ROV) carries suspension hook, brings the seabed into, suspension hook is hung over connector lift on the suspension ring 13, then goes up floatation surface.
(2) underwater robot (ROV) carries pressure testing plug 18 dives of hydraulic power unit under water.
(3) pressure testing plug 18 is inserted in interface socket support 14 panel pressure testing plugs 18 standing grooves (not shown in FIG.).
(4) the blind plugging plug in panel upper cavity working tubing interface socket 15 places is extracted, insert in the standing groove, pressure testing plug 18 is inserted panel upper cavity working tubing interface socket 15 places, pull up again the blind plugging plug in lower chamber working tubing interface socket 16 places, insert in the standing groove, then it is suppressed, pressure reaches 1500PSI to be stopped to suppress.
(5) confirm that by robot (ROV) card tooth 8 opens, and when card tooth 8 opens fully, hangs on working boat by lifting rope with connector.
(6) use hydraulic giant that connector appearance and guide ring 10 inwall garbage-cleanings is clean, change seal ring, blind plugging is inserted in the standing groove remove water with connector one.
(7) connector is hung in the water again, robot (ROV) is examined looking on
(8) observe connector body and lower flange sign by robot (ROV), whether the affirmation connector centering.
(9) after the connector centering, robot (ROV) reinserts panel lower chamber working tubing interface socket 16 places with pressure testing plug 18, and it is carried out oiling, and pressure is 1500PSI, 8 lockings of card tooth.Then pressure testing plug 18 is extracted in pressure release, and the blind plugging plug is inserted lower chamber working tubing interface socket 16 places.
(10) then the blind plugging plug at sealing steel rings pressure testing tubing interface socket 17 places on the panel is extracted, be placed in the resettlement groove, plug pressure testing plug 18 it is carried out the sealability test, pressure is 500PSI, pressurize 15 minutes, as without revealing, then extract pressure testing plug 18, again change the blind plugging plug.
Robot (ROV) finishes under water and installs, upper floatation surface.

Claims (7)

1. hydraulic type submarine pipeline connector, comprise, lower adpting flange, be somebody's turn to do the upper end of upper adpting flange and hold the upper flange of connecting tube to be fixedly connected one by one, one end of this time adpting flange directly is fixedly connected with another pipeline, after upper adpting flange and corresponding being fixedly connected with of lower adpting flange, the pipeline mesopore is sealed shape, it is characterized in that: described upper adpting flange is fixedly connected with a sheathed hydraulic cylinder thereon, this hydraulic cylinder is built-in with the annular piston that can slide up and down along the hydraulic cylinder inwall, also be equipped with a space ring on this hydraulic cylinder inwall, this space ring is divided into two into upper cavity and lower chamber with cylinder inboard wall with the cavity that piston inner wall consists of, have at least two affected by piston up-down can to pin or discharge along the flange radial motion, the card tooth that lower adpting flange connects is distributed on around the piston outside, have at least a pull bar one end to be fixedly connected on the piston, the other end was fixedly connected with draw ring after passing through adpting flange, the bottom of upper adpting flange mesopore is fixedly equipped with a guide ring, the upper of adpting flange lower end is longer than in this guide ring lower end, lower adpting flange junction plane, the upper end inwall of lower adpting flange mesopore is equipped with one section inclined-plane that internal diameter is up big and down small, guide ring outer wall upper, lower adpting flange junction plane place also is fixedly equipped with a sealing steel rings.
2. a kind of hydraulic type submarine pipeline connector according to claim 1 is characterized in that: it is the ring-type inclined-plane that diameter from bottom to top reduces gradually with side that the card tooth contacts for described piston.
3. it is characterized in that according to claim 1 or 2 described a kind of hydraulic type submarine pipeline connectors: its side with the piston contact of described card tooth is equipped with the inclined-plane corresponding with piston.
4. a kind of hydraulic type submarine pipeline connector according to claim 1, it is characterized in that: described card tooth opposite side is equipped with the inclined-plane breach that the energy snap close is lived upper and lower adpting flange, and the upper and lower adpting flange outside also is equipped with respectively the inclined-plane boss corresponding with blocking tooth ramp breach.
5. a kind of hydraulic type submarine pipeline connector according to claim 1, it is characterized in that: described card tooth is 18, be distributed on around the piston outside, a side of each piece card tooth has one to be used for limiting two locating studs of outwards giving prominence to that block spacing between the teeth.
6. a kind of hydraulic type submarine pipeline connector according to claim 1, it is characterized in that: hydraulic cylinder is fixedly equipped with working tubing interface socket support outward, be equipped with respectively oil hydraulic cylinder upper and lower cavity working tubing interface socket and sealing steel rings pressure testing tubing interface socket on this working tubing interface socket support, upper and lower cavity working tubing interface socket passes through respectively the upper and lower cavity of pipeline communication separately, and sealing steel rings pressure testing tubing interface socket is by pipeline communication sealing steel rings pressure testing zone.
7. a kind of hydraulic type submarine pipeline connector according to claim 1 is characterized in that: be equipped with the scale that can identify the piston height on the described pull bar.
CN 201220334348 2012-07-11 2012-07-11 Hydraulic underwater pipeline connector Expired - Lifetime CN202708394U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220334348 CN202708394U (en) 2012-07-11 2012-07-11 Hydraulic underwater pipeline connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220334348 CN202708394U (en) 2012-07-11 2012-07-11 Hydraulic underwater pipeline connector

Publications (1)

Publication Number Publication Date
CN202708394U true CN202708394U (en) 2013-01-30

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ID=47588700

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220334348 Expired - Lifetime CN202708394U (en) 2012-07-11 2012-07-11 Hydraulic underwater pipeline connector

Country Status (1)

Country Link
CN (1) CN202708394U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423529A (en) * 2012-07-11 2013-12-04 美钻能源科技(上海)有限公司 Hydraulic type submarine pipeline connector
CN103982719A (en) * 2014-05-20 2014-08-13 天津大学 Remote stud butt joint method
CN104022411A (en) * 2014-05-14 2014-09-03 四川永贵科技有限公司 Intercoupling type electrical connector
CN108468889A (en) * 2018-05-29 2018-08-31 中国石油大学(华东) The underwater outer pushing-type attachment device of pipe-line fluid cylinder
CN109291009A (en) * 2018-10-27 2019-02-01 中国海洋石油集团有限公司 A kind of underwater flange quick connector
CN109728474A (en) * 2018-12-29 2019-05-07 中国船舶重工集团公司第七一九研究所 Plug assembly and its insertion method based on ROV guidance
CN110091155A (en) * 2019-06-12 2019-08-06 中国石油大学(华东) The axially guiding centering bite type liquid of deep water hydrocarbon pipeline drives attachment device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423529A (en) * 2012-07-11 2013-12-04 美钻能源科技(上海)有限公司 Hydraulic type submarine pipeline connector
CN103423529B (en) * 2012-07-11 2016-04-27 中国海洋石油总公司 Hydraulic type submarine pipeline connector
CN104022411A (en) * 2014-05-14 2014-09-03 四川永贵科技有限公司 Intercoupling type electrical connector
CN103982719A (en) * 2014-05-20 2014-08-13 天津大学 Remote stud butt joint method
CN108468889A (en) * 2018-05-29 2018-08-31 中国石油大学(华东) The underwater outer pushing-type attachment device of pipe-line fluid cylinder
CN108468889B (en) * 2018-05-29 2019-10-22 中国石油大学(华东) The underwater outer pushing-type attachment device of pipe-line fluid cylinder
CN109291009A (en) * 2018-10-27 2019-02-01 中国海洋石油集团有限公司 A kind of underwater flange quick connector
CN109728474A (en) * 2018-12-29 2019-05-07 中国船舶重工集团公司第七一九研究所 Plug assembly and its insertion method based on ROV guidance
CN110091155A (en) * 2019-06-12 2019-08-06 中国石油大学(华东) The axially guiding centering bite type liquid of deep water hydrocarbon pipeline drives attachment device

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Huang He

Inventor after: Liang Siying

Inventor after: Chen Yueming

Inventor after: Qiu Chaopeng

Inventor after: Zhou Shengjie

Inventor after: Chen Kaifa

Inventor after: Jing Yuanbin

Inventor after: Zhang Pengju

Inventor after: Wang Wenlong

Inventor after: Qi Xiaowen

Inventor after: Chen Dajiang

Inventor after: Tu Zaijun

Inventor before: Huang He

Inventor before: Liang Siying

Inventor before: Chen Yueming

Inventor before: Qiu Chaopeng

Inventor before: Zhou Shengjie

Inventor before: Chen Kaifa

Inventor before: Jing Yuanbin

Inventor before: Zhang Jupeng

Inventor before: Wang Wenlong

Inventor before: Qi Xiaowen

Inventor before: Chen Dajiang

Inventor before: Tu Zaijun

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: HUANG HE ZHOU SHENGJIE CHEN KAIFA JING YUANBIN ZHANG JUPENG WANG WENLONG QI XIAOWEN CHEN DAJIANG TU ZAIJUN LIANG SIYING CHEN YUEMING QIU CHAOPENG TO: HUANG HE ZHOU SHENGJIE CHEN KAIFA JING YUANBIN ZHANG PENGJU WANG WENLONG QI XIAOWEN CHEN DAJIANG TU ZAIJUN LIANG SIYING CHEN YUEMING QIU CHAOPENG