CN112278150A - Bilge water system and ship - Google Patents
Bilge water system and ship Download PDFInfo
- Publication number
- CN112278150A CN112278150A CN202011204893.3A CN202011204893A CN112278150A CN 112278150 A CN112278150 A CN 112278150A CN 202011204893 A CN202011204893 A CN 202011204893A CN 112278150 A CN112278150 A CN 112278150A
- Authority
- CN
- China
- Prior art keywords
- water
- valve
- bilge
- pipe
- communicated
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a bilge water system and a ship, and relates to the technical field of ship bilge water systems. The bilge water system comprises a bilge water pump, a water outlet pipe, a pressure water tank, a first water suction pipe, a suction valve and a deflation valve, wherein the bilge water pump comprises a water suction port and a water outlet, one end of the water outlet pipe is communicated with the water outlet, and the other end of the water outlet pipe is communicated to the outboard of a ship; the outlet of the pressure water tank is communicated with the water outlet pipe, and the inlet of the pressure water tank is communicated with the water replenishing source; one end of the first water suction pipe is communicated with the water suction port, and the other end of the first water suction pipe is communicated with a sewage well of the ship; the suction valve is arranged on the first water suction pipe and is close to the sewage well; the air release valve is arranged at the highest point of the first water suction pipe and is positioned between the water suction port valve and the water suction port. This bilge water system has solved the problem of the pipeline in-store gas, has reduced carminative time, can make the system pipeline in-store water always simultaneously, makes and keeps certain water pressure in the pipeline, when the flange is sealed not tight or not hard up on the pipeline, only has water to ooze and does not have the air infiltration, is convenient for look for the pipeline and leaks.
Description
Technical Field
The invention relates to the technical field of ship bilge water systems, in particular to a bilge water system.
Background
At present, ships are provided with bilge drainage devices so as to be able to pump out and drain water in watertight compartments. At present, most ship bilge pumps are centrifugal pumps with self-suction devices, and usually, too much accumulated water in a cabin can not enable a bilge pump to be normally started, so bilge water pipelines are not commonly used and are long in time, because pump shafts, flange gaskets, valves, valve plates and the like are not tightly sealed, water can leak out through the places with the poor seals, air can leak into the pipelines, when the centrifugal bilge pump is started, the water pump can not normally drain as long as a small amount of air exists in the pipelines, and the self-suction devices need to be started to pump air; if the pipeline has air leakage or a large amount of air exists in the pipeline, a large amount of time is needed to exhaust the air in the pipeline, and at the moment, the bilge pump can not discharge water, so that the accident of serious water inflow in the cabin can be possibly developed, and the safety of the ship is damaged.
Disclosure of Invention
The invention aims to provide a bilge water system and a ship, which can solve the problem of gas storage in a pipeline of the bilge water system and reduce the exhaust time of the bilge water system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bilge water system comprising:
the bilge water pump comprises a water suction port and a water outlet;
one end of the water outlet pipe is communicated with the water outlet, and the other end of the water outlet pipe is communicated to the outboard of the ship;
the outlet of the pressure water tank is communicated with the water outlet pipe, and the inlet of the pressure water tank is communicated with a water replenishing source;
one end of the first water suction pipe is communicated with the water suction port, and the other end of the first water suction pipe is communicated with a sewage well of the ship;
a suction valve disposed on the first suction pipe and adjacent to the sump well;
and the air release valve is arranged at the highest point of the first water suction pipe and is positioned between the suction port valve and the water suction port.
Optionally, the bilge water system further comprises a first water replenishing pipe, one end of the first water replenishing pipe is communicated with the outlet of the pressure water tank, the other end of the first water replenishing pipe is communicated with the water outlet pipe, and a water replenishing valve is arranged on the first water replenishing pipe.
Optionally, the bilge water system further comprises a second water replenishing pipe, a bypass valve is arranged on the second water replenishing pipe, and two ends of the second water replenishing pipe are communicated with the first water replenishing pipe so that the bypass valve is connected with the water replenishing valve in parallel.
Optionally, the bilge water system further includes a throttle orifice plate, and the throttle orifice plate is disposed in the second water replenishing pipe and between the bypass valve and the outlet of the pressure water tank.
Optionally, the bilge water system further comprises an outlet valve disposed on the outlet pipe and between the first replenishing pipe and the outboard side.
Optionally, the bilge water system further comprises a side valve disposed on the outlet pipe between the outlet valve and the outboard side.
Optionally, the bilge water system further comprises an inlet valve disposed in the first water suction pipe between the air release valve and the water suction port.
Optionally, the bilge pump includes a pump body, a self-suction device connected to the pump body, and a control box, the control box is electrically connected to the pump body and the self-suction device, respectively, and the control box can control the self-suction device to start to exhaust.
Optionally, the bilge water pump further includes a pressure switch, the pressure switch is connected with the water outlet pipe and electrically connected with the control box, and the pressure switch is used for monitoring the pressure of the water outlet pipe.
A ship comprising the bilge water system described above.
The invention has the beneficial effects that: according to the bilge water system provided by the invention, after the bilge water system is installed and accepted, one end of the water outlet pipe, which is far away from the water outlet of the bilge water pump, is plugged, then water is injected into the bilge water pump through the pressure water tank, after the water in the pressure water tank is injected into the pipeline of the bilge water system and the interior of the bilge water pump, the air release valve on the first water suction pipe is opened, the air in each pipeline can be discharged to the exterior of the bilge water system through the air release valve under the action of water pressure, and finally the air release valve is closed. The bilge water system solves the problem of gas storage in the pipeline, and reduces the time for exhausting when the bilge water system works; meanwhile, the air release valve is arranged at the highest point of the first water suction pipe, so that the air release effect is better; in addition, because pressure water tank and outlet pipe intercommunication can make and have water always to exist in the pipeline, and then make the inside certain water pressure that keeps always of pipeline, when the sealed not tight or not hard up of flange on the pipeline of bilge, only have water to ooze the pipeline, guarantee that pipe-line system does not have the air infiltration, and be convenient for look for the pipeline and leak.
Drawings
Fig. 1 is a schematic structural diagram of a bilge water system according to an embodiment of the present invention.
In the figure:
1-bilge water pump; 101-a pump body; 103-a control box; 104-a pressure switch;
2-water outlet pipe; 3-outboard; 4-a pressure water tank; 5-supplementing water source; 6-a first water suction pipe; 7-a bilge well; 8-a suction valve; 9-air release valve; 10-a first water replenishing pipe; 11-a water replenishing valve; 12-a second water replenishing pipe; 13-a bypass valve; 14-a restriction orifice plate; 15-an outlet valve; 16-a side valve; 17-an inlet valve; 18-second suction pipe.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, the bilge water system comprises a bilge water pump 1, a water outlet pipe 2, a pressure water tank 4, a first water suction pipe 6, a suction port valve 8 and a deflation valve 9, wherein the bilge water pump 1 comprises a water suction port and a water outlet, one end of the water outlet pipe 2 is communicated with the water outlet, and the other end of the water outlet pipe is communicated to the outboard 3 of the ship; the outlet of the pressure water tank 4 is communicated with the water outlet pipe 2, and the inlet is communicated with the water replenishing source 5; one end of the first water suction pipe 6 is communicated with the water suction port, and the other end of the first water suction pipe is communicated with a sewage well 7 of the ship; the suction valve 8 is arranged on the first water suction pipe 6 and close to the sewage well 7; the air release valve 9 is arranged at the highest point of the first water suction pipe 6 and is positioned between the suction valve 8 and the water suction port. It can be understood that, after the installation and acceptance of the bilge water system, the suction valve 8 is closed, the end of the water outlet pipe 2 far away from the water outlet of the bilge water pump 1 is plugged, then the bilge water pump 1 is filled with water through the pressure water tank 4, after the water in the pressure water tank 4 is filled into the pipeline of the bilge water system and the interior of the bilge water pump 1, the air release valve 9 on the first water suction pipe 6 is opened, under the action of water pressure, the air in each pipeline can be discharged to the exterior of the bilge water system through the air release valve 9, and finally the air release valve 9 is closed. The bilge water system solves the problem of gas storage in the pipeline, and reduces the time for exhausting when the bilge water system works; meanwhile, the air release valve 9 is arranged at the highest point of the first water absorption pipe 6, so that a better air release effect can be ensured; in addition, because pressure water tank 4 and outlet pipe 2 intercommunication can make the pipeline in have water always, and then make the inside certain water pressure that keeps always of pipeline, when the sealed not tight or not hard up of flange on the pipeline of bilge, only have water to ooze the pipeline, guarantee that pipe-line system does not have the air infiltration, and be convenient for look for the pipeline and leak.
In this embodiment, there are two sewage wells 7, and the other sewage well 7 is communicated with the first water suction pipe 6 through the second water suction pipe 18, the second water suction pipe 18 is also provided with a suction port valve 8, the suction port valve 8 is also arranged close to the sewage well 7, and a check valve is further arranged between the suction port valve 8 and the sewage well 7. It will be appreciated that by means of which the water in both sewer wells 7 can be drained simultaneously, the backflow in the first suction pipe 6 into the sewer well 7 can be prevented by means of a non-return valve. In other embodiments, the number of the sewage wells 7 can be adaptively increased or decreased, and only the fact that each sewage well 7 can be communicated with the first water suction pipe 6 is required to be ensured, and the air release valve 9 is arranged at the highest position in the plurality of water suction pipelines.
In this embodiment, the design pressure of the pressure water tank 4 is about 1 Bar. Specifically, the design pressure of the pressure water tank 4 is related to the height difference between the highest point of the internal pipeline of the bilge water system and the pressure water tank 4, and the design pressure of the pressure water tank 4 is ensured to be capable of injecting water into any pipeline of the bilge water system. The water replenishing source 5 can be seawater or fresh water, in the embodiment, the water replenishing source 5 is fresh water, the corrosion condition of the pipeline can be improved by using the fresh water, the service life of the pipeline is prolonged, the maintenance cost of the ship is saved, and the reliability of the bilge water system is improved.
Alternatively, bilge pump 1 includes a pump body 101, a self-priming device 102 connected to pump body 101, and a control box 103, control box 103 being electrically connected to pump body 101 and self-priming device 102, respectively, control box 103 being capable of controlling the activation of self-priming device 102 for evacuation. It can be understood that, when the bilge water pump 1 needs to be started, if a small amount of air exists in the pipeline of the bilge water system, the bilge water pump 1 cannot normally drain, and at this time, the control box 103 controls the self-suction device 102 to be started, so that air in the pump is discharged through the self-suction device 102, and the bilge water pump 1 is ensured to normally drain water. In other embodiments, the self-suction device 102 may not be provided, and the bilge pump 1 may be a self-suction pump.
Specifically, bilge water pump 1 further includes a pressure switch 104, pressure switch 104 is connected to water outlet pipe 2 and electrically connected to control box 103, and pressure switch 104 is used for monitoring the pressure of water outlet pipe 2. It will be appreciated that the pressure in outlet pipe 2 can be monitored by pressure switch 104 to determine whether air is present in outlet pipe 2. When air is present, the pressure switch 104 can send a signal to the control box 103, and the control box 103 receives the signal to control the self-priming device 102 to be turned on. The specific structure and control principle of the pressure switch 104 are well known in the art, and will not be described herein. In other embodiments, other monitoring elements may be used in place of the pressure switch 104.
Optionally, the bilge water system further comprises an inlet valve 17, the inlet valve 17 being arranged in the first suction pipe 6 between the bleed valve 7 and the suction port. In this embodiment, the inlet valve 17 is disposed near the suction port. It will be appreciated that the first suction pipe 6 and the second suction pipe 18 can be switched on and off by controlling the opening and closing of the inlet valve 17, the inlet valve 17 being in an open state when the bilge water system is being vented.
Optionally, the bilge water system further comprises an outlet valve 15, the outlet valve 15 being arranged in the outlet pipe 2 between the first penstock 10 and the outboard side 3. It can be understood that the on-off of the water outlet pipe 2 can be controlled by controlling the switch of the outlet valve 15, and when the bilge water system exhausts air in the process of water filling and pressurization, the outlet valve 15 is in a closed state; when the bilge water system is required to discharge bilge water after the exhaust is completed, the bilge water pump 1 discharges the bilge water, and the outlet valve 15 is opened, whereby the bilge water can be discharged to the outboard side 3.
Optionally, the bilge water system further comprises a side valve 16, the side valve 16 being arranged in the outlet pipe 2 between the outlet valve 15 and the outboard side 3. Specifically, since the bilge water system is not in a normal state, the side valve 16 is closed when the bilge water system is not in use, and the side valve 16 is opened when the bilge water system is in use.
Optionally, the bilge water system further includes a first water replenishing pipe 10, one end of the first water replenishing pipe 10 is communicated with an outlet of the pressure water tank 4, the other end of the first water replenishing pipe 10 is communicated with the water outlet pipe 2, and a water replenishing valve 11 is arranged on the first water replenishing pipe 10. It will be appreciated that when the bilge water system is being vented, the make-up water valve 11 is opened and the pressurized water tank 4 is being made up to the bilge water system via the first make-up water pipe 10 via the outlet pipe 2. In this embodiment, the water replenishing valve 11 is a switch valve, and the on-off of the first water replenishing pipe 10 can be controlled by the switch of the water replenishing valve 11.
Optionally, the bilge water system further includes a second water replenishing pipe 12, a bypass valve 13 is disposed on the second water replenishing pipe 12, and both ends of the second water replenishing pipe 12 are communicated with the first water replenishing pipe 10 so that the bypass valve 13 is connected in parallel with the water replenishing valve 11. Specifically, the bilge water system further comprises a throttle orifice 14, and the throttle orifice 14 is arranged on the second water replenishing pipe 12 and is positioned between the bypass valve 13 and the outlet of the pressure water tank 4. It can be understood that when the air in the pipeline is exhausted through the air exhaust valve 9 until water is discharged, the air exhaust valve 9 is closed, then the water supplementing valve 11 is closed, and the bypass valve 13 is opened, at this time, the water supplementing state of the pressure water tank 4 to the bilge water system is changed into the state of keeping static pressure to the pipeline, and when the bilge water pump 1 exhausts water, the amount of water injected into the bilge pipeline by the pressure water tank 4 through the throttle orifice 14 is trace, and the operation of the bilge water pump 1 is not influenced.
In this embodiment, a check valve is further disposed between the outlet valve 15 and the side valve 16, and the check valve can ensure that water in the water outlet pipe 2 does not flow backwards to affect the drainage effect.
The implementation also provides a ship comprising the bilge water system, and the bilge water system can solve the problem of gas storage of pipelines in the system and reduce the time for exhausting the bilge water system.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A bilge water system, comprising:
the bilge water pump (1), the bilge water pump (1) includes water suction inlet and water outlet;
one end of the water outlet pipe (2) is communicated with the water outlet, and the other end of the water outlet pipe (2) is communicated to the outboard (3) of the ship;
the outlet of the pressure water tank (4) is communicated with the water outlet pipe (2), and the inlet of the pressure water tank (4) is communicated with a water replenishing source (5);
a first water suction pipe (6), wherein one end of the first water suction pipe (6) is communicated with the water suction port, and the other end of the first water suction pipe is communicated with a sewage well (7) of the ship;
a suction valve (8), the suction valve (8) being arranged on the first suction pipe (6) and close to the sump well (7);
the air release valve (9), air release valve (9) set up in the peak of first suction pipe (6) and be located suction port valve (8) with between the water sucking mouth.
2. The bilge water system according to claim 1, further comprising a first water replenishing pipe (10), wherein one end of the first water replenishing pipe (10) is communicated with an outlet of the pressure water tank (4) and the other end is communicated with the water outlet pipe (2), and a water replenishing valve (11) is arranged on the first water replenishing pipe (10).
3. The bilge water system according to claim 2, further comprising a second water replenishing pipe (12), wherein a bypass valve (13) is arranged on the second water replenishing pipe (12), and both ends of the second water replenishing pipe (12) are communicated with the first water replenishing pipe (10) so that the bypass valve (13) is connected in parallel with the water replenishing valve (11).
4. Bilge water system according to claim 3, further comprising a restriction orifice (14), said restriction orifice (14) being arranged in said second replenishing pipe (12) between said bypass valve (13) and the outlet of said pressure water tank (4).
5. Bilge water system according to claim 3, further comprising an outlet valve (15), said outlet valve (15) being arranged at the outlet pipe (2) between the first replenishing pipe (10) and the outboard side (3).
6. Bilge water system according to claim 5, further comprising a side valve (16), said side valve (16) being arranged in said outlet pipe (2) between said outlet valve (15) and said outboard side (3).
7. Bilge water system according to claim 1, further comprising an inlet valve (17), said inlet valve (17) being arranged in said first suction pipe (6) between said air release valve (9) and said suction opening.
8. Bilge water system according to claim 1, wherein the bilge water pump (1) comprises a pump body (101), a self-suction device (102) connected to the pump body (101), and a control box (103), the control box (103) being electrically connected to the pump body (101) and the self-suction device (102), respectively, the control box (103) being able to control the activation of the self-suction device (102) for the evacuation.
9. Bilge water system according to claim 8, wherein the bilge water pump (1) further comprises a pressure switch (104), the pressure switch (104) being connected to the water outlet pipe (2) and being electrically connected to the control box (103), the pressure switch (104) being adapted to monitor the pressure of the water outlet pipe (2).
10. A marine vessel comprising a bilge water system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204893.3A CN112278150A (en) | 2020-11-02 | 2020-11-02 | Bilge water system and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204893.3A CN112278150A (en) | 2020-11-02 | 2020-11-02 | Bilge water system and ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112278150A true CN112278150A (en) | 2021-01-29 |
Family
ID=74353968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011204893.3A Pending CN112278150A (en) | 2020-11-02 | 2020-11-02 | Bilge water system and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112278150A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428301A (en) * | 2021-06-29 | 2021-09-24 | 广船国际有限公司 | Bilge water system of methanol pump cabin and dual-fuel driven ship |
| CN113526705A (en) * | 2021-08-02 | 2021-10-22 | 严丽君 | Ship cargo hold sewage treatment system and control method |
| CN115230866A (en) * | 2022-07-29 | 2022-10-25 | 广船国际有限公司 | Design method of bilge system and ship |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038282A (en) * | 1998-12-05 | 2000-07-05 | 권상문 | Ship's ballast system |
| JP2003120568A (en) * | 2001-10-19 | 2003-04-23 | Ishikawajima Harima Heavy Ind Co Ltd | Spiral pump water injection device |
| JP4275489B2 (en) * | 2003-08-19 | 2009-06-10 | 本田技研工業株式会社 | Exhaust resonator drainage structure |
| CN108974252A (en) * | 2018-08-24 | 2018-12-11 | 广州海洋地质调查局 | A kind of ship dry type bilge-water collection system |
| CN109795618A (en) * | 2019-01-30 | 2019-05-24 | 广船国际有限公司 | A kind of ship water absorber and ship |
| CN209976711U (en) * | 2019-03-26 | 2020-01-21 | 上海富科思分析仪器有限公司 | Exhaust system of impeller circulating pump |
| CN110843998A (en) * | 2019-11-21 | 2020-02-28 | 南京盛航海运股份有限公司 | Ship cabin washing water discharge system |
| CN111498006A (en) * | 2020-04-13 | 2020-08-07 | 武汉理工大学 | An anti-air suction device suitable for the bilge water system of luxury cruise ships |
-
2020
- 2020-11-02 CN CN202011204893.3A patent/CN112278150A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038282A (en) * | 1998-12-05 | 2000-07-05 | 권상문 | Ship's ballast system |
| JP2003120568A (en) * | 2001-10-19 | 2003-04-23 | Ishikawajima Harima Heavy Ind Co Ltd | Spiral pump water injection device |
| JP4275489B2 (en) * | 2003-08-19 | 2009-06-10 | 本田技研工業株式会社 | Exhaust resonator drainage structure |
| CN108974252A (en) * | 2018-08-24 | 2018-12-11 | 广州海洋地质调查局 | A kind of ship dry type bilge-water collection system |
| CN109795618A (en) * | 2019-01-30 | 2019-05-24 | 广船国际有限公司 | A kind of ship water absorber and ship |
| CN209976711U (en) * | 2019-03-26 | 2020-01-21 | 上海富科思分析仪器有限公司 | Exhaust system of impeller circulating pump |
| CN110843998A (en) * | 2019-11-21 | 2020-02-28 | 南京盛航海运股份有限公司 | Ship cabin washing water discharge system |
| CN111498006A (en) * | 2020-04-13 | 2020-08-07 | 武汉理工大学 | An anti-air suction device suitable for the bilge water system of luxury cruise ships |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428301A (en) * | 2021-06-29 | 2021-09-24 | 广船国际有限公司 | Bilge water system of methanol pump cabin and dual-fuel driven ship |
| CN113526705A (en) * | 2021-08-02 | 2021-10-22 | 严丽君 | Ship cargo hold sewage treatment system and control method |
| CN115230866A (en) * | 2022-07-29 | 2022-10-25 | 广船国际有限公司 | Design method of bilge system and ship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112278150A (en) | Bilge water system and ship | |
| CN102398672B (en) | Pneumatic drainage system for ship cargo hold sewage well | |
| CN103062453A (en) | Vacuum anti-siphon backflow preventing valve | |
| CN105270567A (en) | Pipeline layout structure for ship ballasting system | |
| CN111619731A (en) | Ship ballast tank exhaust overflow system and ship | |
| WO2019000798A1 (en) | Topside ballast tank ballast water bleed-off system | |
| CN110843998B (en) | A ship tank washing water discharge system | |
| CN107781468A (en) | A kind of ventilative check-valves | |
| JP3713621B2 (en) | Horizontal shaft pump | |
| JP2015031273A (en) | Pump unit | |
| CN113428301B (en) | Bilge water system of methanol pump cabin and dual-fuel driven ship | |
| KR100567927B1 (en) | Check valve with air intake and exhaust | |
| CN214241155U (en) | Pressure balance type underwater toilet pollution discharge device | |
| JP4471179B2 (en) | Seawater pumping and replacing device | |
| CN211139567U (en) | Ship cabin washing water discharge system | |
| KR19980046039A (en) | Ship's ballast system | |
| KR101744640B1 (en) | Ballasting apparatus for eco-ship | |
| CN113460232A (en) | Ship seawater taking system | |
| CN217100358U (en) | Marine mud outboard pipe installing the system | |
| CN111806623A (en) | A balanced side push hole plugging device and plugging method | |
| CN220349890U (en) | Ballast water tank water inlet and outlet system | |
| JP2000337285A (en) | Air vent device for air lock prevention of pump | |
| JP2000328613A (en) | Feed water system | |
| JP3530133B2 (en) | Ballast replacement device | |
| CN222437184U (en) | Modular combined type exhaust valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210129 |