CN106823513A - Seawater filter screen - Google Patents
Seawater filter screen Download PDFInfo
- Publication number
- CN106823513A CN106823513A CN201611255302.9A CN201611255302A CN106823513A CN 106823513 A CN106823513 A CN 106823513A CN 201611255302 A CN201611255302 A CN 201611255302A CN 106823513 A CN106823513 A CN 106823513A
- Authority
- CN
- China
- Prior art keywords
- filter screen
- fixedly connected
- mechanical arm
- seawater
- balancing weight
- 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.)
- Granted
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
Abstract
This application discloses a kind of seawater filter screen,Including filter screen body,First mechanical arm and balancing weight,Filter screen body is fixed with first support,First mechanical arm sets the first limiting section,First is fixedly connected portion is fixedly connected portion with second,First is fixedly connected portion connects with first support axle,Second is fixedly connected portion connects with balancing weight axle,Balancing weight and second support connect with second mechanical arm axle respectively,Filter screen outer body surface is provided with stopper section,First portion of being fixedly connected is arranged on the first limiting section and is fixedly connected between portion with second,First limiting section and stopper section counter stopper,By when normal use,Seawater filter screen is fixed in the cooperation of first mechanical arm and stopper section,When cleaning is needed,As long as lifting rope rotates first mechanical arm,Seawater filter screen breaks away from locking state,Rope can be followed directly after lifted to deck and be cleaned,Can solve the problem that prior art cleaning filter screen needs to remove supporting construction,The problem of wasting manpower and material resources.
Description
Technical field
The disclosure relates generally to ocean engineering field, more particularly to a kind of seawater filter screen.
Background technology
The ocean engineering product such as cylindrical shape FPSO, drilling platforms, accommodation platform, possesses the characteristics of adapting to various marine environments
Increasingly welcome by market.The work for optimizing the intermediate item is imperative, and ocean engineering market is in current international oil
Under the overall situation that valency is dropped repeatedly, internal strength is practiced hard, cost efficiency can just establish oneself in an unassailable position.
Seawater screen system is placed on ballast pipe end, at lower 22 meters of sea level, primarily serves impurity in filtering sea
Effect.Conventional cylindrical shape FPSO, drilling platforms, accommodation platform seawater filter screen substantially use the zinc-plated filter of steel on our times
Net and pipe supporting construction.
In the prior art, seawater filter screen substantially uses pipe supporting construction.The cleaning maintenance work of filter screen is difficult, dismounting sea
Bottom filter screen needs to extract nearly 20 sections of supporting steel pipe structures out, and 80 or so, dismounting adpting flange bolt is, it is necessary to work hour about 8 is small
When.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect that providing one kind need not remove pipe supporting construction, have
Folding and unfolding and locking function, the seawater filter screen of convenient disassembly.
In a first aspect, seawater filter screen of the invention, including filter screen body, first mechanical arm and balancing weight, filter screen body is consolidated
Surely there is first support, the first limiting section of first mechanical arm setting, first are fixedly connected portion and portion is fixedly connected with second, and first fixes
Connecting portion connects with first support axle, and second is fixedly connected portion connects with balancing weight axle, balancing weight and second support respectively with the second machine
Tool arm axle connects, and filter screen outer body surface is provided with stopper section, and first portion of being fixedly connected is arranged on the first limiting section and second and consolidates
Determine between connecting portion, the first limiting section and stopper section counter stopper.
According to the technical scheme that the embodiment of the present application is provided, by when normal use, first mechanical arm and backstop
Seawater filter screen is fixed in the cooperation in portion, when cleaning is needed, as long as lifting rope rotates first mechanical arm, and seawater filter screen pendulum
De- locking state, can follow directly after rope and lifted to deck and be cleaned, and can solve the problem that prior art cleans filter screen needs
Remove supporting construction, the problem of wasting manpower and material resources.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, the application other
Feature, objects and advantages will become more apparent upon：
The structural representation that Fig. 1 coordinates for the first mechanical arm and second mechanical arm of the seawater filter screen of embodiments of the invention
Figure；
Fig. 2 is the front view of the first mechanical arm of the seawater filter screen of embodiments of the invention；
Fig. 3 is the front view of the second mechanical arm of the seawater filter screen of embodiments of the invention；
Fig. 4 is the top view of second mechanical arm shown in Fig. 3；
Fig. 5 is first mechanical arm, second mechanical arm, the structure of balancing weight cooperation of the seawater filter screen of embodiments of the invention
Schematic diagram；
Fig. 6 is the structural representation of the seawater filter screen locking state of embodiments of the invention；
Fig. 7 is the structural representation of the seawater filter screen of embodiments of the invention；
Fig. 8 is the structural representation of the seawater filter screen open configuration of embodiments of the invention.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to description, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 to Fig. 8 is refer to, seawater filter screen of the invention includes filter screen body 30, first mechanical arm 10 and balancing weight 40,
Filter screen body 30 is fixed with first support 31, and first mechanical arm 10 sets the first limiting section 11, first is fixedly connected portion 12 and the
Two are fixedly connected portion 13, and first is fixedly connected portion 12 connects with the axle of first support 31, and second is fixedly connected portion 13 and the axle of balancing weight 40
Connect, balancing weight 40 and second support 32 connect with the axle of second mechanical arm 20 respectively, and the outer surface of filter screen body 30 is provided with stopper section
33, first is fixedly connected portion 12 is arranged on the first limiting section 11 and is fixedly connected between portion 13 with second, the first limiting section 11 with only
The counter stopper of stopper 33.
In an embodiment of the present invention, it is preferable that filter screen body uses netted hollow cylinder structure, sea in seawater is filtered out
Foreign biological, first mechanical arm is fixedly connected portion and is connect with first support axle by first, i.e., first mechanical arm is by first company of fixation
Socket part is fixed with filter cloth edge, and first mechanical arm can be rotated around first portion of being fixedly connected, and first mechanical arm is fixed by second
Connecting portion connects with balancing weight axle, when seawater screen system normal work, the first limiting section and stopper section counter stopper,
In the presence of balancing weight and the first limiting section, first mechanical arm is in locking state.Specifically, when first mechanical arm is in locking
When under state, the first limiting section and second portion of being fixedly connected are fixedly connected between portion positioned at first respectively, now, the first limiting section
With filter cloth edge clamping, the first limiting section receives filter cloth edge active force vertically downward, and second portion of being fixedly connected is subject to counterweight
Block pulling force straight down, the first limiting section and stopper section are located at the both sides at pipeline edge and clamp ballast pipe edge respectively,
Two power reach balance, and seawater filter screen is fixed on ballast pipe, seawater filter screen normal work；When cleaning filter screen is needed,
Upwards lifting rope, drive balancing weight move upwards, drive second portion of being fixedly connected move upwards, now, the first limiting section around
The rotation of first portion of being fixedly connected, first mechanical arm is integrally lifted up, be fixedly connected portion's band electric filter by first transports upwards
Dynamic, first mechanical arm is in relaxation state, and now seawater filter screen is not secured on ballast pipe, and the first limiting section does not have limit
Position effect, until seawater filter screen is lifted to deck along ballast pipe, cleans to filter screen, it is not necessary to remove support knot
Structure, has saved wasting manpower and material resources.
Further, including second mechanical arm 20, filter screen body 30 is fixed with second support 32, and second mechanical arm 20 is set
Second limiting section the 21, the 3rd is fixedly connected portion 22 and portion 23 is fixedly connected with the 4th, and the 3rd is fixedly connected portion 22 and second support 32
Axle connects, and the 4th is fixedly connected portion 23 connects with the axle of balancing weight 40, and the 3rd is fixedly connected portion 22 is arranged on the second limiting section 21 and the 4th
It is fixedly connected between portion 23, the second limiting section 21 and the counter stopper of stopper section 33.
In an embodiment of the present invention, second mechanical arm is fixedly connected portion and is connect with second support axle by the 3rd, i.e., and second
Mechanical arm is fixedly connected portion and is fixed with filter cloth edge by the 3rd, and second mechanical arm can be rotated around the 3rd portion of being fixedly connected, the
Two mechanical arms are fixedly connected portion and are connect with balancing weight axle by the 4th, and when seawater screen system normal work, second is spacing
Portion and stopper section counter stopper, in the presence of balancing weight and the second limiting section, second mechanical arm is in locking state.Specifically
, when second mechanical arm is under locking state, the second limiting section and the 4th portion of being fixedly connected are located at the 3rd company of fixation respectively
Between socket part, now, the second limiting section and filter cloth edge clamping, the second limiting section receive filter cloth edge effect vertically downward
Power, the 4th portion of being fixedly connected is subject to balancing weight pulling force straight down, and the second limiting section and stopper section are located at pipeline edge respectively
Both sides and clamp ballast pipe edge, two power reach balance, and seawater filter screen is fixed on ballast pipe, and seawater filter screen is just
Often work；When cleaning filter screen is needed, lift rope upwards, drive balancing weight to move upwards, drive the 4th be fixedly connected portion to
Upper motion, now, the second limiting section is rotated around the 3rd portion of being fixedly connected, and second mechanical arm is integrally lifted up, by the 3rd
It is fixedly connected portion's band electric filter to move upwards, second mechanical arm is in relaxation state, and now seawater filter screen is not secured to ballast
On water pipe, the second limiting section does not have position-limiting action, until seawater filter screen is lifted to deck along ballast pipe, to filter screen
Cleaned, it is not necessary to remove supporting construction, saved wasting manpower and material resources, whole screen system is eliminated from deck to filter screen
20 sections of whole support tube, directly mitigate Item Weight, cost efficiency.
Fig. 6 to Fig. 8 is refer to, further, filter screen body sets the first movable span 34 and the second movable span 35, the first machine
Tool arm 10 is moved in the first movable span 34, and second mechanical arm 20 is moved in the second movable span 35.
In an embodiment of the present invention, filter screen body sets the first movable span and the second movable span, and first mechanical arm is the
Moved in one movable span, second mechanical arm is moved in the second movable span, facilitate first mechanical arm and second mechanical arm to rotate, no
With filter screen interference, the stability and reliability of seawater filter structure are improve.
Further, first mechanical arm 10 is moved on the same plane with second mechanical arm 20, the rotation of first mechanical arm 10
Direction is opposite with the rotation direction of second mechanical arm 20.
In an embodiment of the present invention, filter cloth edge is circle, it is preferred that sets two mechanical arms, that is, sets the first machine
Tool arm and second mechanical arm, first mechanical arm are moved on the same plane with second mechanical arm, the rotation direction of first mechanical arm with
The rotation direction of second mechanical arm conversely, namely first mechanical arm and second mechanical arm divide equally the circle of filter cloth edge composition,
On the premise of it ensure that the intensity of seawater filter screen mechanical arm, the quality of seawater filter screen is reduced, reduce manufacturing cost, when
More mechanical arm can so be selected, it is preferable that the circle that mechanical arm etc. point filter cloth edge is formed, mechanical arm is along filter screen side
The circle that edge is formed is radially arranged.
With reference to Fig. 4, further, the 4th is fixedly connected portion 23 sets " U " type groove 24, and it is inner that " U " type groove 24 sets first
The inner face 26 of face 25 and second, second is fixedly connected portion 13 is arranged between the first inner face 25 and the second inner face 26.
In an embodiment of the present invention, second portion is fixedly connected in the first inner face and the slip of the second inner face surface, protect
The steady of motion has been demonstrate,proved, the reliability of seawater filter screen mechanical arm has been improve.
Further, first mechanical arm 10 and second mechanical arm 20 are bidirectional stainless steel material.
In an embodiment of the present invention, first mechanical arm and second mechanical arm are bidirectional stainless steel material, are improve
The intensity and corrosion resistance of first mechanical arm and second mechanical arm.
Further, including with being redirected 41, it is fixedly connected with balancing weight 40 with being redirected 41, the bottom of filter screen body 30
The 3rd movable span 36 is provided with, is moved in the 3rd movable span 36 with being redirected 41, with being redirected 41 away from the one of balancing weight 40
End sets block 42, the radial distance of the radial distance more than the 3rd movable span 36 of block 42.
In the bright embodiment of we, when rope is lifted, balancing weight is oriented to and follows balancing weight to move up and down, and the 3rd
Movable span limits the motion of balancing weight directed radial, prevents balancing weight bias motion route, makes filter screen local during lifting
Generation rock with ballast pipe friction, extend the service life of seawater filter screen, be redirected away from balancing weight one end set
Block, the radial distance of the radial distance more than the 3rd movable span of block, during balancing weight guiding movement, block blocks filter
The lateral surface of sieve bottom, enables filter screen to follow balancing weight to be oriented to and follows rope to lift to deck together.
Further, stopper section 33 is the annular protrusion around the lateral surface of filter screen body 30.
In an embodiment of the present invention, stopper section is the annular protrusion around filter screen outer body face, increased stopper section with
The contact area of ballast pipe, makes mechanical arm in locking state, being capable of uniform stressed, it is to avoid local to produce abrasion, improves
The reliability of seawater filter screen, extends service life.
Further, filter screen body 30 is glass fiber reinforced polypropylene filter screen.
In an embodiment of the present invention, filter screen body is glass fiber reinforced polypropylene filter screen, it is ensured that filter screen intensity, is carried
Seawater corrosion resistance ability high, reduces the attachment of marine organisms, while alleviating the weight of seawater filter screen.
Further, including external current protection device 50, external current protection device 50 is fixedly connected with balancing weight 40.
In an embodiment of the present invention, including external current protection device, external current protection device is fixed with balancing weight
Connection, external current protection device can effectively reduce microorganism and be attached to above seawater filter screen.
Above description is only the preferred embodiment and the explanation to institute's application technology principle of the application.People in the art
Member is it should be appreciated that involved invention scope in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where the inventive concept is not departed from, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (10)
1. a kind of seawater filter screen, it is characterised in that including filter screen body, first mechanical arm and balancing weight, the filter screen body is consolidated
Surely there is first support, the first limiting section of the first mechanical arm setting, first are fixedly connected portion and are fixedly connected portion with second, described
First is fixedly connected portion connects with the first support axle, and described second is fixedly connected portion connects with the balancing weight axle, the counterweight
Block and the second support connect with the second mechanical arm axle respectively, and the filter screen outer body surface is provided with stopper section, institute
State first portion of being fixedly connected and be arranged on first limiting section and be fixedly connected between portion with described second, first limiting section with
The stopper section counter stopper.
2. seawater filter screen according to claim 1, it is characterised in that including second mechanical arm, the filter screen body is fixed
There is a second support, the second mechanical arm sets the second limiting section, the 3rd is fixedly connected portion and is fixedly connected portion with the 4th, described the
Three are fixedly connected portion connects with the second support axle, and the described 4th is fixedly connected portion connects with the balancing weight axle, and the described 3rd consolidates
Determine connecting portion and be arranged on second limiting section and the described 4th to be fixedly connected between portion, second limiting section and the backstop
Portion's counter stopper.
3. seawater filter screen according to claim 2, it is characterised in that the filter screen body sets the first movable span and second
Movable span, the first mechanical arm is moved in first movable span, and the second mechanical arm is in second movable span
Motion.
4. seawater filter screen according to claim 2, it is characterised in that the first mechanical arm exists with the second mechanical arm
Same plane is moved, and the rotation direction of the first mechanical arm is opposite with the rotation direction of the second mechanical arm.
5. seawater filter screen according to claim 2, it is characterised in that the 4th portion of being fixedly connected sets " U " type groove, institute
State " U " type groove set the first inner face and the second inner face, second portion of being fixedly connected be arranged on first inner face and
Between second inner face.
6. seawater filter screen according to claim 2, it is characterised in that the first mechanical arm and the second mechanical arm are equal
It is bidirectional stainless steel material.
7. the seawater filter screen according to claim any one of 1-6, it is characterised in that including with being redirected, the counterweight is led
It is fixedly connected to the balancing weight, the bottom of the filter screen body is provided with the 3rd movable span, and the counterweight is directed at described
Moved in 3rd movable span, it is described that with the one end being redirected away from the balancing weight, block, the radial distance of the block are set
More than the radial distance of the 3rd movable span.
8. the seawater filter screen according to claim any one of 1-6, it is characterised in that the stopper section is around the filter screen sheet
The annular protrusion of outside.
9. the seawater filter screen according to claim any one of 1-6, it is characterised in that the filter screen body is that glass fibre increases
Strong polypropylene screen.
10. the seawater filter screen according to claim any one of 1-6, it is characterised in that including external current protection device, institute
External current protection device is stated to be fixedly connected with the balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255302.9A CN106823513B (en) | 2016-12-30 | 2016-12-30 | Seawater strainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255302.9A CN106823513B (en) | 2016-12-30 | 2016-12-30 | Seawater strainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106823513A true CN106823513A (en) | 2017-06-13 |
| CN106823513B CN106823513B (en) | 2019-03-19 |
Family
ID=59113563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255302.9A Active CN106823513B (en) | 2016-12-30 | 2016-12-30 | Seawater strainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106823513B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794487A (en) * | 1995-07-10 | 1998-08-18 | Smart Machines | Drive system for a robotic arm |
| CN101450367A (en) * | 2007-12-04 | 2009-06-10 | 中南大学 | High-stability heavy-load clamp |
| CN201930614U (en) * | 2010-09-25 | 2011-08-17 | 裴玉杰 | Sand filter |
| CN202061448U (en) * | 2011-03-25 | 2011-12-07 | 朱木钦 | Underwater filter |
| CN203752140U (en) * | 2014-04-10 | 2014-08-06 | 齐齐哈尔齐三机床有限公司 | Manipulator |
| CN205148344U (en) * | 2015-11-02 | 2016-04-13 | 彭亚洲 | Self -interacting mechanical gripper |
-
2016
- 2016-12-30 CN CN201611255302.9A patent/CN106823513B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794487A (en) * | 1995-07-10 | 1998-08-18 | Smart Machines | Drive system for a robotic arm |
| CN101450367A (en) * | 2007-12-04 | 2009-06-10 | 中南大学 | High-stability heavy-load clamp |
| CN201930614U (en) * | 2010-09-25 | 2011-08-17 | 裴玉杰 | Sand filter |
| CN202061448U (en) * | 2011-03-25 | 2011-12-07 | 朱木钦 | Underwater filter |
| CN203752140U (en) * | 2014-04-10 | 2014-08-06 | 齐齐哈尔齐三机床有限公司 | Manipulator |
| CN205148344U (en) * | 2015-11-02 | 2016-04-13 | 彭亚洲 | Self -interacting mechanical gripper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106823513B (en) | 2019-03-19 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee after: COSCO Shipping (Qidong) Ocean Engineering Co., Ltd. Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Address before: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee before: COSCO Shipping (Qidong) Ocean Engineering Co., Ltd. Patentee before: COSCO Shipyard Group Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee after: Qidong Zhongyuan Marine Engineering Co., Ltd. Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Address before: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee before: COSCO Shipping (Qidong) Ocean Engineering Co., Ltd. Patentee before: Nantong COSCO Shipping Engineering Co., Ltd. |