CN115158544B - Protective grille, fish-proof device and ship - Google Patents
Protective grille, fish-proof device and ship Download PDFInfo
- Publication number
- CN115158544B CN115158544B CN202210719549.0A CN202210719549A CN115158544B CN 115158544 B CN115158544 B CN 115158544B CN 202210719549 A CN202210719549 A CN 202210719549A CN 115158544 B CN115158544 B CN 115158544B
- Authority
- CN
- China
- Prior art keywords
- plate
- suction port
- plates
- pipeline
- fish
- 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.)
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Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 26
- 241000251468 Actinopterygii Species 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000007921 spray Substances 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 17
- 230000000366 juvenile effect Effects 0.000 abstract description 14
- 239000002245 particle Substances 0.000 abstract description 13
- 230000002265 prevention Effects 0.000 abstract description 5
- 239000013535 sea water Substances 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- 235000015225 Panicum colonum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of fish prevention protection of a ship broadside suction port, in particular to a protective grille, a fish prevention device and a ship, wherein the protective grille comprises a first plate, a second plate and a third plate, the first plate is of a planar plate-shaped structure and is detachably arranged on the broadside, and a through hole communicated with the broadside suction port is formed in the center of the first plate; the second plates are strip-shaped, are multiple and vertically arranged on the first plates and are lapped on the through holes; the third plate is long, vertically penetrates through the plurality of second plates, is distributed in a plurality of equidistant modes and is inclined to the first plate. By adopting the structure, the juvenile fish and the garbage particles can only enter the suction port through the spacing between the plates, the third plate is inclined to the first plate, and the third plate has a larger projection area on the first plate, which is equivalent to the interception area of the third plate, so that the juvenile fish and the garbage particles can be intercepted better.
Description
Technical Field
The invention relates to the technical field of fish prevention protection of ship broadside suction ports, in particular to a protective grille, a fish prevention device and a ship.
Background
When a ship is sailing at sea, water is required to be absorbed from the sea by a water pump, and daily operations such as cooling, fire fighting, flushing and the like are performed on the ship by sea water. Because the seawater is inexhaustible and the cost is low, the ship can extract a large amount of seawater for use.
When seawater is pumped, a grating is arranged on the ship side suction port to prevent garbage, water grass, fish and the like from entering the suction port. Such a conventional suction inlet grille has the following problems and disadvantages: only one grille is arranged on the ship side suction port, and juvenile fish and garbage particles can actively enter or be sucked along with water flow, so that a large number of juvenile fish are damaged, the suction port is blocked by the garbage particles caused by a suction pipeline, and seawater cannot be sucked.
Disclosure of Invention
The invention aims to provide a protective grille, a fish-proof device and a ship, which can solve the risk of plugging a pipeline suction port.
In order to achieve the above object, the present invention provides a protective grille detachably mounted on a side suction port, comprising:
the first plate is in a planar plate structure and is detachably arranged on the broadside, and a through hole communicated with the broadside suction port is formed in the center of the first plate;
the second plates are in a strip shape, are multiple and are vertically arranged on the first plates and are lapped on the through holes;
the third plate is in a strip shape, vertically penetrates through a plurality of second plates, is distributed in a plurality of equidistant modes and is inclined to the first plate.
Further, the distance between the adjacent third plates ranges from 10mm to 50mm, and the inclination angle of the third plates relative to the first plate ranges from 30 degrees to 70 degrees.
Further, a plurality of the second plates are arranged in parallel and at equal intervals.
Further, the present invention also provides a fish preventing device, comprising:
the pumping system comprises a suction port pipeline, a main pump and an outlet pipeline, wherein one end of the main pump is connected with the suction port pipeline, the other end of the main pump is connected with the outlet pipeline, and the water inlet end of the suction port pipeline is connected with the broadside suction port;
the interference system comprises a spray pump, a spray pipeline and a nozzle which are sequentially connected, wherein the water inlet end of the spray pump is connected with the suction port pipeline, and the nozzle is positioned on one side of the broadside suction port;
and the control panel is electrically connected with the main pump and the jet pump.
Further, the fish preventing device further comprises a protective grille, the protective grille is the protective grille, and the nozzle is located above the protective grille.
Further, the pumping system further comprises a filter, and the filter is arranged on the suction port pipeline.
Further, the water pumping system is provided with at least two filters in parallel.
Further, the interference system further comprises an opening adjusting valve, and the opening adjusting valve is arranged on the spraying pipeline and is used for adjusting the water outlet pressure and flow of the spraying pipeline.
Further, the interference system further comprises a one-way valve, the one-way valve is arranged on the spray pipeline, and the one-way valve is positioned between the spray pump and the opening regulating valve.
Further, the invention also provides a ship, which comprises a broadside suction port, wherein the broadside suction port is provided with the fish preventing device.
The invention has the beneficial effects that:
1. the second plates are multiple and vertically arranged on the first plates and are lapped on the through holes, the third plates are vertical and pass through the multiple second plates, the third plates are distributed at equal intervals, and the third plates are inclined to the first plates. By adopting the structure, the juvenile fish and the garbage particles can only enter the suction port through the spacing between the plates, the third plate is inclined to the first plate, and the third plate has a larger projection area on the first plate, which is equivalent to the interception area of the third plate, so that the juvenile fish and the garbage particles can be intercepted better.
2. The water pumping system can suck seawater to the ship body through the side suction port for utilization, the interference system comprises a nozzle, the nozzle can spray water to the side suction port to form a plurality of water jet flows, and the juvenile fish is prevented from entering the vicinity of the side suction port and garbage particles are prevented from entering the vicinity of the side suction port through jet flow interference. When the ship works, the interference system is started, fish prevention protection is started in advance, and then the pumping system is started to provide seawater for the ship.
3. The fish preventing device further comprises a filter, the filter is arranged on the suction port pipeline, a filter screen hole of the filter is 3-8mm, the filter further prevents juvenile fish and garbage from entering the suction port of the main pump, and the filter needs to be cleaned regularly.
4. At least two filters are arranged in parallel, and the filters can be switched to use at intervals, so that one filter is convenient to clean without affecting the normal use of the other filter.
5. The fish preventing device also comprises an opening regulating valve, and the outlet water pressure and flow of the outlet of the spray washing pipeline are regulated by regulating the opening of the opening regulating valve so as to control the water jet flow velocity of the outlet of the nozzle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a protective grille according to embodiment 1 of the present invention;
fig. 2 is a side view of a protective grille according to embodiment 1 of the present invention;
fig. 3 is a schematic overall structure of a fish preventing device according to embodiment 2 of the present invention.
Reference numerals illustrate:
100. a water pumping system; 101. a suction port pipeline; 102. a main pump; 103. an outlet line; 104. a filter; 105. a water outlet; 200. an interference system; 201. a jet pump; 202. spraying and flushing a pipeline; 203. a nozzle; 204. an opening regulating valve; 205. a one-way valve; 300. a protective grille; 301. a first sheet material; 302. a second plate; 303. a third plate; 304. a screw hole; 400. a broadside suction port; 500. a vessel; 600. and a control panel.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
Referring to fig. 1 and 2, as a kind of protective grille 300 provided in an embodiment of the present invention, which is detachably mounted on a side suction port 400, the protective grille 300 includes a first plate 301, a second plate 302, and a third plate 303, the first plate 301 being in a planar plate-like structure, the first plate 301 being detachably mounted on the side, a center of the first plate 301 being provided with a through hole communicating with the side suction port 400; the second plates 302 are in a strip shape, and the second plates 302 are multiple and vertically arranged on the first plates 301 and overlap the through holes; the third plate 303 is in a strip shape, the third plate 303 vertically passes through the plurality of second plates 302, the third plate 303 is distributed in a plurality of equal intervals, and the third plate 303 is inclined to the first plate 301.
By adopting the structure, juvenile fish and garbage particles can only enter the suction port through the plate spacing, the third plate 303 is inclined to the first plate 301, the third plate 303 has a larger projection area on the first plate 301, which is equivalent to the interception area of the third plate 303, and the juvenile fish and garbage particles can be intercepted better.
Specifically, the first plate 301 has a rectangular shape with a large-area rectangular through hole in the middle thereof, and a plurality of screw holes 304 are provided at the edges thereof, and screws pass through the screw holes 304 and fix the first plate 301 on the side. The second plate 302 is installed perpendicular to the first plate 301, and a plurality of the second plates 302 are arranged in parallel and at equal intervals. The third sheet 303 is mounted perpendicular to the second sheet 302 and passes through the plurality of second sheets 302. The angle of inclination of the third plate 303 to the first plate 301 is a, which in this embodiment is 60, in the range 30-70. The third plates 303 are installed at a uniform interval, the interval is b, the interval b ranges from 10mm to 50mm, the interval b is 20mm in the embodiment, and juvenile fish and garbage particles above 20mm can be prevented from entering the side suction port 400.
Example 2
As a fish preventing device provided by the embodiment of the invention, the fish preventing device comprises a pumping system 100, an interference system 200 and a control panel 600, wherein the pumping system 100 comprises a suction port pipeline 101, a main pump 102 and an outlet pipeline 103, one end of the main pump 102 is connected with the suction port pipeline 101, the other end is connected with the outlet pipeline 103, and the water inlet end of the suction port pipeline 101 is connected with a side suction port 400; the interference system 200 comprises a jet pump 201, a jet pipeline 202 and a nozzle 203 which are sequentially connected, wherein the water inlet end of the jet pump 201 is connected with a suction port pipeline 101, and the nozzle 203 is positioned on one side of a broadside suction port 400; the control panel 600 is electrically connected to the main pump 102 and the jet pump 201.
The pumping system 100 can pump seawater to the ship body through the side suction port 400 for use, the interference system 200 comprises a nozzle 203, the nozzle 203 can spray water to the side suction port 400 to form a plurality of water jet flows, and through jet interference, juvenile fish are prevented from entering the vicinity of the side suction port 400, and garbage particles are prevented from entering the vicinity of the side suction port 400. In operation, the disturbance system 200 is first activated, fish protection is initiated in advance, and then the pumping system 100 is activated to provide seawater for use by the vessel 500.
Specifically, the fish preventing apparatus further includes a protective grill 300, the protective grill 300 being the protective grill 300 in embodiment 1, the protective grill 300 being mounted on the side suction port 400 for filtering organisms such as magazines and fish that enter the suction port line 101. The nozzle 203 is located above the protective grille 300, and the control panel 600 is electrically connected to the main pump 102 and the jet pump 201 and controls start and stop. When the protective grille 300 works, the jet pump 201 is started first, water remaining in the pipeline is sprayed through the nozzles 203, a plurality of water jet flows are formed outside the protective grille 300, young fish is prevented from entering the vicinity of the grille through jet flow interference, and garbage particles can be prevented from entering the vicinity of the grille. After the jet pump 201 works for 60 seconds, the main pump 102 is started, water flows sequentially through the suction port pipeline 101, the main pump 102 and the outlet pipeline 103, and then is jetted from the water outlet 105 of the outlet pipeline 103 for use, so that seawater is provided for cooling, fire fighting, flushing and the like of the ship 500. The water inlet end of the jet pump 201 is connected with the suction port pipeline 101, and at this time, water flow of the suction port pipeline 101 is continuously supplied to the interference system 200, so that the nozzle 203 continuously sprays water to form jet flow, and juvenile fish are prevented from entering the vicinity of the broadside suction port 400. The jet velocity of nozzle 203 is greater than 10m/s, at which point the velocity will form an effective jet disturbance. The opening and closing control of the jet pump 201 and the main pump 102 can be set by the control panel 600 according to the parameter control.
Further, the pumping system 100 further includes a filter 104, and the filter 104 is provided on the suction port line 101. The screen holes of the filter 104 are 3-8mm, the filter 104 further prevents juvenile fish and garbage from entering the suction port of the main pump 102, and the filter 104 needs to be cleaned periodically. At least two filters 104 are arranged in parallel, and the filters 104 can be switched to use at intervals, so that one filter 104 can be cleaned conveniently without affecting the normal use of the other filter 104.
Further, the disturbance system 200 further includes an opening degree adjusting valve 204, and the opening degree adjusting valve 204 is disposed on the spray line 202 and adjusts the outlet water pressure and flow rate of the spray line 202 to control the water jet flow rate at the outlet of the nozzle 203. The opening degree adjusting valve 204 is electrically connected to the control panel 600, and the opening degree of the opening degree adjusting valve 204 is controlled by adjusting a corresponding parameter by the control panel 600 to thereby adjust the water jet flow rate at the outlet of the nozzle 203.
Further, the interference system 200 further includes a check valve 205, the check valve 205 is disposed on the spray pipeline 202, the check valve 205 is located between the spray pump 201 and the opening adjusting valve 204, and the check valve 205 can prevent the seawater from flowing backward.
Example 3
As an embodiment of the present invention, there is provided a ship 500 including a side suction port 400, wherein the side suction port 400 is provided with the fish preventing device described in embodiment 2, the fish preventing device includes a pumping system 100, an interference system 200, and a protection grating 300, and the protection grating 300 is disposed at the side suction port 400 to perform preliminary blocking filtration of garbage particles and fish fries. The protection grating 300, the pumping system 100 and the interference system 200 are described in detail in embodiments 1 and 2, and thus are not described in detail.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (6)
1. A fish-protection device, comprising:
the pumping system (100) comprises a suction port pipeline (101), a main pump (102) and an outlet pipeline (103), wherein one end of the main pump (102) is connected with the suction port pipeline (101), the other end of the main pump is connected with the outlet pipeline (103), and the water inlet end of the suction port pipeline (101) is connected with a side suction port (400);
the interference system (200) comprises a spray pump (201), a spray pipeline (202) and a nozzle (203) which are sequentially connected, wherein the water inlet end of the spray pump (201) is connected with the suction port pipeline (101), the nozzle (203) is positioned on one side of the side suction port (400), the nozzle (203) can spray water to the side suction port (400) to form a plurality of water jets, the interference system further comprises an opening adjusting valve (204) and a one-way valve (205), the opening adjusting valve (204) is arranged on the spray pipeline (202) and is used for adjusting the water outlet pressure and flow of the spray pipeline (202) so as to control the water jet flow rate of the outlet of the nozzle (203), the one-way valve (205) is arranged on the spray pipeline (202), and the one-way valve (205) is positioned between the spray pump (201) and the opening adjusting valve (204);
a control panel (600) electrically connected to the main pump (102) and the jet pump (201);
a protective grille (300) detachably mounted on the side suction port (400), the nozzle (203) being located above the protective grille (300); the protective grille (300) comprises a first plate (301), a second plate (302) and a third plate (303), wherein the first plate (301) is in a planar plate-shaped structure and is detachably arranged on the broadside, and a through hole communicated with the broadside suction port (400) is formed in the center of the first plate; the second plates (302) are in a strip shape, are multiple and are vertically arranged on the first plates (301) and are lapped on the through holes; the third plates (303) are long, vertically penetrate through a plurality of second plates (302), are distributed at equal intervals, and are inclined to the first plates (301);
wherein, during operation, the interference system (200) is started in advance to start fish protection, and then the pumping system (100) is started.
2. A fish protection device according to claim 1, wherein the water pumping system (100) further comprises a filter (104), the filter (104) being arranged on the suction line (101).
3. A fish protection device according to claim 2, wherein at least two of the filters (104) are arranged in parallel in the water pumping system (100).
4. A fish protection device according to claim 1, wherein the distance between adjacent third plates (303) is in the range of 10mm-50mm, the angle of inclination of the third plates (303) with respect to the first plates (301) being in the range of 30 ° -70 °.
5. A fish protection device according to claim 1, wherein a plurality of said second plates (302) are arranged in parallel and equally spaced relation.
6. A ship comprising a side suction opening (400), characterized in that the side suction opening (400) is provided with a fish protection device according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719549.0A CN115158544B (en) | 2022-06-23 | 2022-06-23 | Protective grille, fish-proof device and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719549.0A CN115158544B (en) | 2022-06-23 | 2022-06-23 | Protective grille, fish-proof device and ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115158544A CN115158544A (en) | 2022-10-11 |
| CN115158544B true CN115158544B (en) | 2024-02-20 |
Family
ID=83487386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210719549.0A Active CN115158544B (en) | 2022-06-23 | 2022-06-23 | Protective grille, fish-proof device and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115158544B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1612044A1 (en) * | 1986-05-30 | 1990-12-07 | Волгоградский экспериментальный завод оросительной техники | Fish protecting device of water intake structure |
| JPH06107276A (en) * | 1992-09-22 | 1994-04-19 | Mitsubishi Heavy Ind Ltd | Self-antifouling type seawater suction grid |
| JP2009051237A (en) * | 2007-08-23 | 2009-03-12 | Universal Shipbuilding Corp | Sea chest |
| KR20120015572A (en) * | 2010-08-12 | 2012-02-22 | 대우조선해양 주식회사 | Thruster grid for vessel |
| KR20140026759A (en) * | 2012-08-23 | 2014-03-06 | 삼성중공업 주식회사 | Sea chest for ship |
| KR20140027774A (en) * | 2012-08-27 | 2014-03-07 | 대우조선해양 주식회사 | Sea chest marine grid |
| CN103708001A (en) * | 2013-12-19 | 2014-04-09 | 广州中船黄埔造船有限公司 | Grid |
| KR20140064003A (en) * | 2012-11-19 | 2014-05-28 | 대우조선해양 주식회사 | Locking device for sea chest |
| KR20140148205A (en) * | 2013-06-21 | 2014-12-31 | 삼성중공업 주식회사 | Apparatus for preventing the clogging of grid for vessel propeller |
| KR20150000781U (en) * | 2013-08-16 | 2015-02-25 | 삼성중공업 주식회사 | Sea chest grating for a ship |
| CN204841293U (en) * | 2015-08-17 | 2015-12-09 | 南通天蓝环保能源成套设备有限公司 | A dust suppression device for building broken hole of rubbish |
| CN105799857A (en) * | 2016-04-28 | 2016-07-27 | 中船黄埔文冲船舶有限公司 | Efficient water feeding device for ship |
| CN206317970U (en) * | 2016-11-01 | 2017-07-11 | 中国舰船研究设计中心 | Sea Chest pocket water grid peculiar to vessel |
| CN207510653U (en) * | 2017-11-04 | 2018-06-19 | 山东海翔游艇有限公司 | A kind of yacht cabin air inlet keeps off drainage arrangement |
-
2022
- 2022-06-23 CN CN202210719549.0A patent/CN115158544B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1612044A1 (en) * | 1986-05-30 | 1990-12-07 | Волгоградский экспериментальный завод оросительной техники | Fish protecting device of water intake structure |
| JPH06107276A (en) * | 1992-09-22 | 1994-04-19 | Mitsubishi Heavy Ind Ltd | Self-antifouling type seawater suction grid |
| JP2009051237A (en) * | 2007-08-23 | 2009-03-12 | Universal Shipbuilding Corp | Sea chest |
| KR20120015572A (en) * | 2010-08-12 | 2012-02-22 | 대우조선해양 주식회사 | Thruster grid for vessel |
| KR20140026759A (en) * | 2012-08-23 | 2014-03-06 | 삼성중공업 주식회사 | Sea chest for ship |
| KR20140027774A (en) * | 2012-08-27 | 2014-03-07 | 대우조선해양 주식회사 | Sea chest marine grid |
| KR20140064003A (en) * | 2012-11-19 | 2014-05-28 | 대우조선해양 주식회사 | Locking device for sea chest |
| KR20140148205A (en) * | 2013-06-21 | 2014-12-31 | 삼성중공업 주식회사 | Apparatus for preventing the clogging of grid for vessel propeller |
| KR20150000781U (en) * | 2013-08-16 | 2015-02-25 | 삼성중공업 주식회사 | Sea chest grating for a ship |
| CN103708001A (en) * | 2013-12-19 | 2014-04-09 | 广州中船黄埔造船有限公司 | Grid |
| CN204841293U (en) * | 2015-08-17 | 2015-12-09 | 南通天蓝环保能源成套设备有限公司 | A dust suppression device for building broken hole of rubbish |
| CN105799857A (en) * | 2016-04-28 | 2016-07-27 | 中船黄埔文冲船舶有限公司 | Efficient water feeding device for ship |
| CN206317970U (en) * | 2016-11-01 | 2017-07-11 | 中国舰船研究设计中心 | Sea Chest pocket water grid peculiar to vessel |
| CN207510653U (en) * | 2017-11-04 | 2018-06-19 | 山东海翔游艇有限公司 | A kind of yacht cabin air inlet keeps off drainage arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115158544A (en) | 2022-10-11 |
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