CN109795618B - Ship water absorption device and ship - Google Patents
Ship water absorption device and ship Download PDFInfo
- Publication number
- CN109795618B CN109795618B CN201910093114.8A CN201910093114A CN109795618B CN 109795618 B CN109795618 B CN 109795618B CN 201910093114 A CN201910093114 A CN 201910093114A CN 109795618 B CN109795618 B CN 109795618B
- Authority
- CN
- China
- Prior art keywords
- water
- water suction
- pipe
- water absorption
- ship
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 213
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 68
- 238000007789 sealing Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000013535 sea water Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000008574 Capsicum frutescens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a ship water absorption device, which comprises a water absorption pipe and a floating part, wherein the water absorption pipe and the floating part are respectively positioned in a cabin, one end of the water absorption pipe is connected with a cabin bottom, the other end of the water absorption pipe is connected with a branch pipe, the side wall of the water absorption pipe is provided with a water absorption port for water accumulated in the cabin to enter, the floating part is sleeved on the periphery of the water absorption pipe, and the floating part can float up and down relative to the water absorption pipe so as to selectively block the water absorption port. Through the design, the floating part can automatically close the water suction port along with the change of the accumulated water in the cabin, so that air can be prevented from entering the water suction pipe from the water suction port in time, and the bilge pump can smoothly suck the accumulated water in other cabins, thereby ensuring the normal operation of a bilge water system and improving the safety performance of ships. The invention also provides a ship which is low in manufacturing cost and has good safety performance.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a ship water absorption device and a ship comprising the same.
Background
Bilge water systems are of vital importance for ships, wherein the main role of the bilge water system is: firstly, effectively removing bilge water generated in a cabin during normal operation; and secondly, under the emergency condition that the cabin is damaged, water can be drained effectively and quickly, and the buoyancy and stability of the ship are guaranteed. The bilge water system is generally branched to water suction ports in various cabins through a seawater main pipe, and bilge water entering the cabins is sucked through a bilge water pump so as to ensure the buoyancy of the ship. Each water suction port is provided with a valve port to selectively close the water suction port, but the water suction port is controlled by the valve, and the following disadvantages exist: if bilge water in a plurality of cabins is pumped simultaneously, bilge water in one cabin is pumped to be dry or a valve on one pipeline leaks, a bilge pump can be pumped out, bilge water in other cabins can not be pumped, and serious potential safety hazards exist.
Disclosure of Invention
One object of the present invention is: the ship water sucking device can automatically close the water sucking port and ensure the normal operation of the bilge water system.
Another object of the present invention is: provided is a ship having excellent safety performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
on the one hand, the ship water absorption device comprises a water absorption pipe and a floating part, wherein the water absorption pipe and the floating part are respectively positioned in a cabin, one end of the water absorption pipe is connected with a cabin bottom, the other end of the water absorption pipe is connected with a branch pipe, a water absorption port for allowing accumulated water in the cabin to enter is formed in the side wall of the water absorption pipe, the floating part is sleeved on the periphery of the water absorption pipe, and the floating part can float up and down relative to the water absorption pipe so as to selectively block the water absorption port.
As a preferable technical solution of the ship water absorption device, the water absorption pipe has a connection portion and a water absorption portion, the connection portion is disposed above the water absorption portion, one end of the connection portion, which is far away from the water absorption portion, is connected with the branch pipe, and the water absorption opening is disposed on the water absorption portion.
As a preferred technical scheme of boats and ships water absorption plant, be provided with the through-hole that is used for passing the suction pipe in the float part, the size of water absorption portion is crescent from top to bottom, the size of through-hole is crescent from top to bottom.
As a preferable technical scheme of the ship water absorption device, the cross section of the water absorption pipe is of a circular structure, and the through hole is matched with the outer diameter of the water absorption pipe.
As a preferable technical scheme of the ship water absorption device, a sealing ring is arranged on the inner side wall of the through hole, and the sealing ring is positioned at one end, far away from the bilge, of the through hole.
As a preferable technical solution of the ship water absorption device, the inner side wall of the through hole is provided with a sealing layer.
As a preferable aspect of the ship water absorbing apparatus, the connection portion is connected to the branch pipe by a flange member.
As a preferable technical solution of the ship water absorption device, the flange part is convexly arranged on the outer wall of the water absorption pipe.
As a preferable aspect of the ship water absorbing apparatus, the floating member has a floating portion extending away from a center of the through hole.
In another aspect, a ship is provided, wherein the bilge water system includes a water absorption device provided inside a cabin, and the water absorption device is the ship water absorption device.
The invention has the beneficial effects that: when water is accumulated in the cabin, the floating part floats upwards along the height direction of the water suction pipe under the action of buoyancy, the blocking effect of the floating part on a water suction port is removed, the accumulated water in the cabin enters the water suction pipe from the water suction port under the action of the bilge pump and flows into a seawater main pipe through a branch pipe, and finally the accumulated water is distributed to the outside of the cabin; when no water is accumulated in the cabin, the floating part descends along the water suction pipe under the action of gravity to block the water suction port, and air is prevented from entering the water suction pipe through the water suction port. Through the design, the floating part can automatically close the water suction port along with the change of the accumulated water in the cabin, so that air can be prevented from entering the water suction pipe from the water suction port in time, and the bilge pump can smoothly suck the accumulated water in other cabins, thereby ensuring the normal operation of a bilge water system and improving the safety performance of ships.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a sectional view of a water absorbing apparatus for a ship according to an embodiment.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a schematic structural view of the water absorption device for the ship according to the embodiment.
In the figure:
1. a bilge; 2. a floating member; 21. a floating section; 22. a cavity structure; 3. a branch pipe; 4. a first connecting flange; 41. a first connection hole; 5. a second connecting flange; 51. a second connection hole; 6. a suction pipe; 61. a water-absorbing part; 62. a connecting portion; 7. a water suction port; 8. a sealing layer; 9. and (5) sealing rings.
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.
As shown in fig. 1 to 3, the present invention provides a ship water absorption device, which includes a water absorption pipe 6 and a floating member 2 respectively located inside a cabin, wherein one end of the water absorption pipe 6 is connected with a cabin bottom 1, the other end is connected with a branch pipe 3, a water absorption port 7 for allowing water accumulated in the cabin to enter is arranged on a side wall of the water absorption pipe 6, the floating member 2 is sleeved on the periphery of the water absorption pipe 6, and the floating member 2 can float up and down relative to the water absorption pipe 6 to selectively block the water absorption port 7.
In the bilge water system, a ship water suction device is arranged in each cabin, wherein the branch pipes 3 in each cabin are connected with a bilge pump through a main seawater pipe, the bilge pump is driven to suck accumulated water in each cabin simultaneously, the accumulated water in each cabin is discharged, and the buoyancy and stability of a ship are guaranteed. When water is accumulated in the cabin, the floating part 2 floats upwards along the height direction of the water suction pipe 6 under the action of buoyancy, the blocking effect of the floating part 2 on the water suction port 7 is removed, the accumulated water in the cabin enters the water suction pipe 6 from the water suction port 7 under the action of the bilge pump and flows into the seawater main pipe through the branch pipe 3, and finally the accumulated water is discharged to the outside of the cabin; when no water is accumulated in the cabin, the floating part 2 descends along the water suction pipe 6 under the action of gravity to block the water suction port 7, and air is prevented from entering the water suction pipe 6 through the water suction port 7. Through the design, the floating part 2 can automatically close the water suction port 7 along with the change of the accumulated water in the cabin, so that air can be prevented from entering the water suction pipe 6 from the water suction port 7 in time, and the bilge pump can smoothly suck the accumulated water in other cabins, thereby ensuring the normal operation of a bilge water system and improving the safety performance of ships.
The water suction pipe 6 has a connecting part 62 and a water suction part 61, the connecting part 62 is disposed above the water suction part 61, one end of the connecting part 62 far away from the water suction part 61 is connected with the branch pipe 3, and the water suction port 7 is disposed on the water suction part 61. With the above arrangement, the suction port 7 is arranged close to the bilge 1, the accumulated water in the bilge is sucked as much as possible, and the suction pipe 6 is connected to the branch pipe 3 through the connecting portion 62. Preferably, at least two water inlets 7 are provided, and each water inlet 7 is annularly provided at the periphery of the water suction portion 61, so that on one hand, the water inlet speed of the water inlet 7 can be increased, and on the other hand, when one water inlet 7 is blocked by sundries, the other water inlets 7 can still collect water.
Preferably, the bilge 1 is concavely provided with a mounting groove for mounting the water suction pipe 6, the water suction part 61 is arranged in the mounting groove, wherein the water suction port 7 is lower than the upper surface of the bilge 1, so that accumulated water in the cabin is completely sucked to the outside of the cabin, and the accumulated water is prevented from remaining in the cabin due to the overhigh position of the water suction port 7.
Further, the notch department of mounting groove is provided with the water conservancy diversion face, leads ponding to the mounting groove in through the water conservancy diversion face for the speed of ponding flow mounting groove.
In this embodiment, be provided with the through-hole that is used for passing suction pipe 6 in the float part 2, the size of water-absorbing portion 61 is crescent from top to bottom, the size of through-hole is crescent from top to bottom. When no water is accumulated in the cabin, the floating part 2 descends along the floating part 2 under the action of gravity, and as the size of the water absorption part 61 is gradually increased from top to bottom, along with the descending of the floating part 2, the gap between the inner side wall of the through hole and the outer wall of the water absorption pipe 6 is gradually reduced, and finally the inner side wall of the through hole is completely attached to the periphery of the water absorption port 7, so that the water absorption port 7 is blocked by the floating part 2, and air is prevented from entering the water absorption pipe 6; when there is ponding the cabin inside, float part 2 receives buoyancy and along the suction pipe 6 come-up in ponding, because the size of water absorption portion 61 from top to bottom crescent, along with the inside wall of the ascending through-hole of float part 2 keeps away from water sucking mouth 7 gradually, the clearance between the inside wall of through-hole and the outer wall of water sucking mouth 7 week portion crescent removes the shutoff effect of float part 2 to water sucking mouth 7 for the inside ponding in cabin can enter into suction pipe 6 from water sucking mouth 7.
In the present embodiment, the connection part 62 is provided integrally with the water absorbing part 61, but in another embodiment, the connection part 62 may be provided separately from the water absorbing part 61.
As a preferable technical scheme, the cross section of the water suction pipe 6 is of a circular structure, and the through hole is matched with the outer diameter of the water suction pipe 6. By the design, the water suction pipe 6 does not need to be correspondingly inserted into a certain position of the side wall of the through hole, and the water suction pipe 6 is conveniently installed in the through hole. However, in other embodiments, the cross-section of barrel 6 may be triangular, rectangular, polygonal, or irregular.
In this embodiment, a sealing ring 9 is disposed on an inner side wall of the through hole, and the sealing ring 9 is located at one end of the through hole, which is far away from the bilge 1. The sealing ring 9 is arranged to ensure the sealing performance between the through hole and the water suction pipe 6 all the time in the up-and-down floating process of the floating part 2, so that accumulated water is prevented from entering the water suction pipe 6 from the upper end of the through hole. Specifically, a groove for mounting the seal ring 9 is concavely arranged on the inner side wall of the through hole.
In this embodiment, two sealing rings 9 are arranged on the inner side wall of the through hole, and the two sealing rings 9 are arranged. In actual practice, however, the number of sealing rings 9 on the inner side wall of the through hole can be set as desired.
In yet another embodiment, the inner side wall of the through hole is provided with a sealing layer 8. The arrangement of the sealing layer 8 further ensures that the floating part 2 can completely block the water suction port 7, so that a gap is avoided between the floating part 2 and the water suction part 61, and the reliability of the water suction device is improved. Preferably, the sealing layer 8 is a sealant.
The connecting part 62 is connected with the branch pipe 3 through a flange part, wherein the flange part is convexly arranged on the outer wall of the suction pipe 6. Specifically, connecting portion 62 is kept away from the one end of installation department is provided with first connecting flange 4, branch pipe 3 is close to the one end of the pipe 6 that absorbs water be provided with first connecting flange 4 matched with second connecting flange 5, first connecting flange 4 week portion is provided with a plurality of first connecting holes 41, a plurality of second connecting holes 51 have just been seted up to each first connecting hole 41 to second connecting flange 5, and connecting bolt screws respectively and can dismantle first connecting flange 4 and second connecting flange 5 in first connecting hole 41 and second connecting hole 51 and be connected, and then realizes absorbing the dismantlement of pipe 6 and branch pipe 3 and be connected.
However, in other embodiments, the suction pipe 6 may be fixedly connected to the branch pipe 3, for example, the suction pipe 6 may be connected to the branch pipe 3 by welding.
The floating member 2 has a floating portion 21 extending in a direction away from the center of the through hole. The floating part 21 is provided with a cavity structure 22, so that the weight of the floating part 2 is reduced as much as possible, and the floating part 2 is ensured to have enough buoyancy.
Specifically, the floating part 21 is integrally formed in a cylindrical structure, and a through hole is formed in the axial center of the cylindrical structure, so that the balance of the floating member 2 is ensured by using the characteristics of the cylindrical structure, and the possibility that the inner side wall of the through hole is clamped on the periphery of the water suction pipe 6 due to unbalance of the floating member 2 in the process of floating the floating member 2 up and down is reduced. But in other embodiments the floating member 2 may take on other types of shaped structures.
Boats and ships are iced easily at indoor ponding under chilly environment, in entering into the suction pipe 6 from the water sucking mouth 7 that can be smooth for guaranteeing the ponding in the room, be provided with the heating plate in the cavity structure 22, heat floating member 2 through the heating plate, recycle floating member 2 and conduct the heat to ponding aquatic to make ponding be located near floating member 2 ice-cube melt, avoid the ice-cube to block up water sucking mouth 7.
The invention also provides a ship, which comprises a bilge water system, wherein the bilge water system is provided with a water absorption device arranged in a cabin, the water absorption device is the ship water absorption device with any structure, and the specific structure of the ship water absorption device is not repeated. Due to the water absorption device, the reliability of a bilge water system is improved, the safety performance of the ship is guaranteed, a control valve does not need to be arranged in the water suction port 7, the cost can be reduced, and the maintenance of the control valve is reduced. If the passenger rolling boat reduces about 20 control valve members, the material cost and the installation working hour cost of about 2 ten thousand yuan can be reduced, and if the water suction port 7 uses a remote control valve, the cost can be reduced more.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (7)
1. A ship water suction device is characterized by comprising a water suction pipe and a floating part which are respectively positioned in a plurality of cabins, wherein one end of the water suction pipe is connected with a cabin bottom, the other end of the water suction pipe is connected with a branch pipe connected with a cabin bottom pump, the side wall of the water suction pipe is provided with a water suction port for allowing accumulated water in the cabin to enter, the floating part is sleeved on the periphery of the water suction pipe, the floating part can float up and down relative to the water suction pipe to selectively block the water suction port, the water suction pipe is provided with a connecting part and a water suction part, the connecting part is arranged above the water suction part, one end of the connecting part far away from the water suction part is connected with the branch pipe, the water suction port is arranged on the water suction part, the cabin bottom is concavely provided with a mounting groove for mounting the water suction pipe, the water suction part is arranged in the mounting groove, and the water suction port is lower than the upper surface of the cabin bottom, be provided with the through-hole that is used for passing the pipe that absorbs water in the showy part, the size of the portion of absorbing water from top to bottom crescent, the size of through-hole from top to bottom crescent, showy part has the orientation and keeps away from the showy portion that the central direction of through-hole extends, the void structure has in the showy portion, be provided with the heating plate among the void structure.
2. The ship's water absorption device of claim 1 wherein the cross section of the suction pipe is circular, and the through hole is matched with the outer diameter of the suction pipe.
3. The ship water absorption device according to claim 1, wherein the inner side wall of the through hole is provided with a sealing ring, and the sealing ring is positioned at one end of the through hole, which is far away from the bilge.
4. The marine water absorption device of claim 1 wherein the inner side wall of the through-hole is provided with a sealing layer.
5. The ship's water absorption device according to claim 1 wherein the connection portion is connected to the branch pipe by a flange member.
6. The ship's water absorption device of claim 5 wherein the flange member is provided to protrude from the outer wall of the water absorption pipe.
7. A ship, characterized by comprising a bilge water system having therein a water absorbing device provided inside a cabin, the water absorbing device being a ship water absorbing device as recited in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910093114.8A CN109795618B (en) | 2019-01-30 | 2019-01-30 | Ship water absorption device and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910093114.8A CN109795618B (en) | 2019-01-30 | 2019-01-30 | Ship water absorption device and ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109795618A CN109795618A (en) | 2019-05-24 |
| CN109795618B true CN109795618B (en) | 2021-08-27 |
Family
ID=66560584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910093114.8A Active CN109795618B (en) | 2019-01-30 | 2019-01-30 | Ship water absorption device and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109795618B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498006B (en) * | 2020-04-13 | 2021-02-19 | 武汉理工大学 | Air suction prevention device suitable for luxurious cruise ship bilge water system |
| CN111627321A (en) * | 2020-06-22 | 2020-09-04 | 深圳市思科瑞光电有限公司 | 4K combination formula high definition display screen |
| CN112278150A (en) * | 2020-11-02 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Bilge water system and ship |
| CN114212213B (en) * | 2022-01-07 | 2023-09-12 | 江南造船(集团)有限责任公司 | Water accumulation cleaning device for watertight compartment of tank ship |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150034337A (en) * | 2013-09-26 | 2015-04-03 | 대우조선해양 주식회사 | Ballast water generator and vessel comprising the same |
| CN103787005B (en) * | 2014-01-16 | 2017-01-25 | 西南科技大学 | Automatic oil separation and water drainage system for tank farm |
| CN204210694U (en) * | 2014-09-30 | 2015-03-18 | 广州广船国际股份有限公司 | Cabin freeing arrangement |
| CN204623763U (en) * | 2015-05-25 | 2015-09-09 | 浙江海洋学院 | A kind of automatic bailer of shellfish carrier |
| CN204688369U (en) * | 2015-06-29 | 2015-10-07 | 浙江海洋学院 | The sucking hole device of novel ship sewage pipe |
| CN107969378A (en) * | 2017-11-28 | 2018-05-01 | 刘军 | Fish pond automatic protector |
| CN208293687U (en) * | 2018-05-25 | 2018-12-28 | 广州富港万嘉智能科技有限公司 | A kind of cleaning basin |
-
2019
- 2019-01-30 CN CN201910093114.8A patent/CN109795618B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109795618A (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109795618B (en) | Ship water absorption device and ship | |
| KR101202889B1 (en) | Oil-skimmer | |
| CN109763467A (en) | Offshore oil spill pollutant recovery device | |
| CN212744359U (en) | Vertical submerged pump | |
| CN109296797B (en) | Water retaining communication device, air cabin ventilation system and ship | |
| CN105151226B (en) | Anti-drop anti-blocking submarine suction system of high-speed ship | |
| CN210636531U (en) | Noise reduction structure of water inlet valve | |
| CN218975006U (en) | Marine ballast tank liquid level switch prevents false alarm device | |
| SE0950358A1 (en) | Tank device adapted for a submersible pump | |
| CN214331617U (en) | Integrated combined air valve convenient to overhaul | |
| CN112624323B (en) | Defoaming device of MBR (Membrane bioreactor) | |
| CN207195115U (en) | Floating water pump | |
| CN219909164U (en) | Floating boat type movable water intake pump station | |
| KR20200145048A (en) | Discharge structure for reducing bublle occurrence using flexible sheet | |
| JPH09314172A (en) | Deep aeration equipment for reservoirs, etc. | |
| CN207879640U (en) | A kind of diving gate pump | |
| CN222325011U (en) | Water return preventing device using hydrophobic film | |
| CN207034307U (en) | A kind of air bleeding valve | |
| CN204871472U (en) | Anti-off and anti-blocking submarine suction system for high-speed ships | |
| CN206664912U (en) | A kind of gooseneck type air pipe head | |
| CN221049883U (en) | Seawater main pipe suitable for bubble drag reduction system | |
| JP2013148051A (en) | Vertical type double suction volute pump | |
| CN221418532U (en) | Low-level submarine tank suitable for bubble drag reduction system | |
| CN216546632U (en) | Floating dock | |
| CN222044316U (en) | High-efficiency drainage equipment for river construction |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |