CN216636786U - Water level control system of floating dock - Google Patents
Water level control system of floating dock Download PDFInfo
- Publication number
- CN216636786U CN216636786U CN202123343887.9U CN202123343887U CN216636786U CN 216636786 U CN216636786 U CN 216636786U CN 202123343887 U CN202123343887 U CN 202123343887U CN 216636786 U CN216636786 U CN 216636786U
- Authority
- CN
- China
- Prior art keywords
- floating dock
- water level
- water pipe
- level control
- ballast pump
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a water level control system of a floating dock, which relates to the technical field of the floating dock and comprises a floating dock body, wherein the floating dock body comprises a supporting part, a seabed valve box arranged at the bottom end of the supporting part and a ballast pump matched with the seabed valve box for use; the water level control module is arranged on the floating dock body and is connected with the ballast pump; wherein the ballast pump operates in response to a control signal of the water level control module; the valve box is a plurality of, all is provided with the intercommunication water pipe that is used for communicateing adjacent valve box between the adjacent valve box, and the both ends of intercommunication water pipe all are equipped with the intercommunication control mechanism, and the intercommunication control mechanism is located the valve box of seabed. This application has when making the ballast pump damage, the submarine valve case that this ballast pump corresponds still can normally work's effect.
Description
Technical Field
The application relates to the technical field of floating docks, in particular to a floating dock water level control system.
Background
The floating dock is a ship maintenance platform moving in inland rivers and on the sea, has the advantages of low investment and flexible movement, and is one of key facilities in ship repair/shipbuilding industry. Currently, both sinking and floating of the floating dock are controlled by ballast water, and the sinking or floating of the floating dock is realized by injecting or discharging ballast water into or from a ballast water tank.
The prior Chinese patent with publication number CN107226181A discloses an inflatable drainage type floating dock, which comprises a floating box, a dock wall and hoisting equipment, wherein the dock wall is arranged on two sides of the upper surface of the floating box; still be equipped with compressed air drainage system, compressed air drainage system includes gas circuit pipeline and control system. When the control system controls the subsea valve box to perform water inlet and outlet operations, the ballast pump provides power for the water inlet and outlet process of the subsea valve box.
In view of the above-mentioned technology, the inventor found that, when a subsea valve box is in operation, if a ballast pump of a current subsea valve box is damaged, the subsea valve box cannot normally perform water inlet and outlet operations, and that there is a defect that when one ballast pump is damaged, the subsea valve box corresponding to the ballast pump cannot operate.
Disclosure of Invention
In order to ensure that a corresponding seabed valve box of a ballast pump can still work normally when the ballast pump is damaged, the application provides a floating dock water level control system.
The application provides a floating dock water level control system adopts following technical scheme:
a floating dock water level control system comprises a floating dock body, wherein the floating dock body comprises a support part, a seabed valve box arranged at the bottom end of the support part and a ballast pump matched with the seabed valve box;
a water level control module installed at the floating dock body and connected with the ballast pump;
wherein the ballast pump operates in response to a control signal of the water level control module;
the device comprises a plurality of submarine valve boxes, wherein a communication water pipe for communicating the adjacent submarine valve boxes is arranged between the adjacent submarine valve boxes, and communication control mechanisms are arranged at two ends of the communication water pipe and are positioned in the submarine valve boxes.
By adopting the technical scheme, when the floating dock body needs to be lifted on the water surface, the water level control module controls the ballast pump to work and controls the seabed valve box to enter or exit water. When a certain ballast pump breaks down, the corresponding subsea valve box of the ballast pump cannot independently complete water inlet and outlet operations, at the moment, the communication control mechanism enables two ends of a communication water pipe connected with the current subsea valve box to be communicated, the current subsea valve box can perform water inlet and outlet operations through the ballast pump of the subsea valve box adjacent to the current subsea valve box, and the subsea valve box corresponding to the ballast pump can still normally work when the ballast pump is damaged.
Optionally, the communication control mechanism includes a control piston and a driving motor for driving the control piston; the outer diameter of the control piston is the same as the inner diameter of the communicating water pipe, and the control piston is connected with the inner wall of the communicating water pipe in a sliding mode along the radial direction of the communicating water pipe.
Through adopting above-mentioned technical scheme, driving motor provides power for the removal process of control piston, when the tip of intercommunication water pipe was arranged in the control piston slip, the outer wall of control piston and the inner wall of intercommunication water pipe laminated mutually, and then made the intercommunication water pipe seal. When the control piston is moved out from the end part of the sliding communication water pipe in a sliding mode, the two ends of the communication water pipe are communicated, and at the moment, the adjacent seabed valve boxes are communicated, so that the communication control process of the communication water pipe is achieved.
Optionally, a state detection module connected with the ballast pump is installed on the floating dock body;
the floating dock body is also provided with a communication control module which is respectively connected with the state detection module and the driving motor;
the communication control module controls the driving motor to operate in response to the detection signal of the state detection module.
By adopting the technical scheme, the state detection module detects the working state of the ballast pump in real time, when the state detection module inquires the fault state of the ballast pump, the state detection module generates and sends a detection signal, and the communication control module receives and responds to the detection signal of the state detection module, so that the driving motor is controlled to operate, and the automatic control function of the driving motor is realized.
Optionally, the communication control module is connected to the water level control module, and the communication control module controls the operation of the driving motor in response to a control signal of the water level control module.
Through adopting above-mentioned technical scheme, when the ballast pump was in the fault condition, the unable ballast pump operation of direct control damage of water level control module, the detection signal of intercommunication control module receipt and response state detection module this moment, and then control driving motor operation makes two adjacent subsea valve casees of intercommunication water pipe intercommunication, and then makes the intercommunication control function of intercommunication water pipe more perfect.
Optionally, a driving disc is coaxially and fixedly arranged on an output shaft of the driving motor, a driving rod is rotatably connected to the side edge of the driving disc, and one end of the driving rod, which is far away from the driving disc, is movably connected with the control piston.
By adopting the technical scheme, the driving motor enables the driving disc to rotate, the driving disc drives the driving rod to move, the driving rod drives the control piston to reciprocate along the radial line direction of the water connecting pipe, and then the displacement control process of the control piston is realized.
Optionally, a limiting block is fixedly arranged in the subsea valve box, a guide groove is formed in the limiting block, and the outer end portion of the driving disc is arranged in the guide groove and is slidably connected with the guide groove.
Through adopting above-mentioned technical scheme, when the driving disc rotated, the outward flange of driving disc arranged in the guide way and with guide way sliding connection, the stopper played limiting displacement to the rotation orbit of driving disc, and then made the driving disc can be more stable arrange required orbit in and remove.
Optionally, a cavity is coaxially formed in the end portion, far away from the driving rod, of the control piston, and a through hole communicated with the cavity is formed in the side wall of the control piston.
Through adopting above-mentioned technical scheme, when control piston need make intercommunication water pipe both ends switch on, control piston keeps away from the tip of actuating lever and the interior wall connection of intercommunication water pipe, and rivers can flow through cavity and through-hole this moment, realize the process of the intercommunication of intercommunication water pipe, make control piston can more stably stop up the intercommunication water pipe again smoothly simultaneously.
Optionally, the two ends of the communicating water pipe are both provided with guide slopes, and the guide slopes are connected with the control piston in a sliding manner.
Through adopting above-mentioned technical scheme, when the tip that the actuating lever was kept away from to the control piston removed and arranges the both ends of intercommunication water pipe in, the direction slope made the circulation route of rivers bigger, and then made the rivers process between the intercommunication water pipe more smooth and easy.
In summary, the present application includes at least one of the following beneficial technical effects:
when the floating dock body needs to be lifted on the water surface, the water level control module controls the ballast pump to work and controls the seabed valve box to enter water or discharge water. When a certain ballast pump breaks down, the corresponding subsea valve box of the ballast pump cannot independently complete water inlet and outlet operations, at the moment, the communication control mechanism enables two ends of a communication water pipe connected with the current subsea valve box to be communicated, the current subsea valve box can perform water inlet and outlet operations through the ballast pump of the subsea valve box adjacent to the current subsea valve box, and the subsea valve box corresponding to the ballast pump can still normally work when the ballast pump is damaged.
The driving motor provides power for the moving process of the control piston, and when the control piston is arranged at the end part of the communicating water pipe in a sliding mode, the outer wall of the control piston is attached to the inner wall of the communicating water pipe, and therefore the communicating water pipe is closed. When the control piston is moved out from the end part of the sliding communication water pipe in a sliding mode, the two ends of the communication water pipe are communicated, and at the moment, the adjacent seabed valve boxes are communicated, so that the communication control process of the communication water pipe is achieved.
When the ballast pump is in a fault state, the water level control module cannot directly control the damaged ballast pump to operate, the communication control module receives and responds to a detection signal of the state detection module at the moment, and then controls the driving motor to operate, so that the communication water pipe is communicated with the two adjacent seabed valve boxes, and further the communication control function of the communication water pipe is more perfect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
FIG. 2 is a cross-sectional view of the control piston and drive disk in an embodiment of the present application.
Fig. 3 is a block diagram of modules in an embodiment of the present application.
Description of reference numerals: 1. a water level control module; 3. a floating dock body; 31. a support portion; 32. a subsea valve box; 33. a ballast pump; 4. the water pipe is communicated; 5. a control piston; 6. a drive motor; 7. a state detection module; 8. the communication control module; 9. a drive disk; 10. a drive rod; 11. a limiting block; 12. a guide groove; 13. a cavity; 14. a through hole; 15. and (6) guiding to a slope.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a water level control system of a floating dock, referring to fig. 1, including a floating dock body 3, the floating dock body 3 includes a support portion 31, ten the same subsea valve boxes 32 are fixedly arranged at the bottom of the support portion 31, the floating dock body 3 includes ten ballast pumps 33, the ballast pumps 33 are located the both sides of the support portion 31, a ballast pump 33 and a subsea valve box 32 fixed connection, the ballast pump 33 cooperates with the subsea valve box 32 and uses.
When the floating dock body 3 works, the ballast pump 33 controls the seabed valve boxes 32 connected with the ballast pump to perform water inlet and outlet operation, when the seabed valve boxes 32 are filled with water, the supporting parts 31 sink, the seabed valve boxes 32 discharge water, the supporting parts 31 rise, and users realize the lifting function of the supporting parts 31 by respectively controlling the water inlet and outlet processes of the seabed valve boxes 32.
And communication water pipes 4 are arranged between every two adjacent subsea valve boxes 32, and the communication water pipes 4 are arranged along the horizontal direction and are communicated with the adjacent subsea valve boxes 32. The adjacent subsea valve boxes 32 are communicated through the communication water pipe 4, and when the two subsea valve boxes 32 are communicated, a user can control the water inlet and outlet of the two subsea valve boxes 32 through one ballast pump 33, so as to realize the synchronous control process of the water flow between the connected subsea valve boxes 32.
Referring to fig. 1 and 2, both ends of the communication water pipe 4 are provided with communication control mechanisms, and the communication control mechanisms are located in the subsea valve box 32. When the floating dock body 3 works, if a certain ballast pump 33 fails, the ballast pump 33 cannot independently complete water inlet and outlet operations corresponding to the subsea valve box 32. At this time, the communication control mechanism conducts the two ends of the communication water pipe 4 connected with the current subsea valve box 32, so that the current subsea valve box 32 can perform water inlet and outlet operations through the ballast pump 33 of the subsea valve box 32 adjacent to the current subsea valve box, and when the ballast pump 33 is damaged, the subsea valve box 32 corresponding to the ballast pump 33 can still work normally.
The communication control mechanism comprises a control piston 5, and the control piston 5 is arranged along the radial line direction of the communication water pipe 4. The outer diameter of the control piston 5 is the same as the inner diameter of the communicating water pipe 4, and the control piston 5 is connected with the inner wall of the communicating water pipe 4 in a sliding mode along the radial direction of the communicating water pipe 4.
When the control piston 5 is slidably arranged at the end part of the communicating water pipe 4, the outer wall of the control piston 5 is attached to the inner wall of the communicating water pipe 4, so that the communicating water pipe 4 is closed. When the control piston 5 is moved out from the end of the sliding communication water pipe 4 in a sliding manner, the two ends of the communication water pipe 4 are communicated, and at the moment, the adjacent seabed valve boxes 32 are communicated, so that the communication control process of the communication water pipe 4 is realized.
Intercommunication water pipe 4 all is prismatic shape with control piston 5, and when intercommunication water pipe 4 and control piston 5 relative movement, prismatic shape's control piston 5 can be arranged in intercommunication water pipe 4 more steadily and remove, makes difficult emergence rotation skew between intercommunication water pipe 4 and the control piston 5, makes intercommunication water pipe 4 and control piston 5's relative movement process more stable.
The end part of the control piston 5 far away from the driving rod 10 is coaxially provided with a cavity 13, the side wall of the control piston 5 far away from the driving rod 10 is provided with a through hole 14, and the through hole 14 is arranged along the radial line direction of the control piston 5 and is communicated with the cavity 13. When the control piston 5 needs to enable the two ends of the communicating water pipe 4 to be communicated, the end part, far away from the driving rod 10, of the control piston 5 is connected with the inner wall of the communicating water pipe 4, and at the moment, water flow can flow through the cavity 13 and the through hole 14, so that the communicating process of the communicating water pipe 4 is achieved.
Meanwhile, the cavity 13 and the through hole 14 enable the control piston 5 to be communicated with the two ends of the water pipe 4 without completely pulling out the communicated water pipe 4, so that a user can conveniently place the control piston 5 in the communicated water pipe 4 again after using the control piston, and the communicated water pipe 4 can be blocked by the control piston 5 more stably and smoothly.
The direction slope 15 has all been seted up at the both ends of intercommunication water pipe 4, and direction slope 15 is the terrace with edge shape, and the tip of direction slope 15 broad is located the terminal surface of intercommunication water pipe 4, and direction slope 15 and control piston 5 sliding connection. When the cavity 13 and the through hole 14 are movably disposed at both ends of the communicating water pipe 4, the guide slope 15 makes a flow path of the water flow larger to some extent, thereby making a flow process between the communicating water pipes 4 smoother.
The communication control mechanism further includes a drive motor 6, and the drive motor 6 is used to drive the displacement of the control piston 5. When the control piston 5 moves, the driving motor 6 provides power for the movement of the control piston 5, so that the control piston 5 can be automatically placed at two ends of the communicating water pipe 4 to move.
The driving motor 6 is arranged along the vertical direction, the driving disc 9 is coaxially and fixedly arranged on an output shaft of the driving motor 6, the side edge of the driving disc 9 is rotatably connected with the driving rod 10, the driving disc 9 and the driving rod 10 are both arranged on the horizontal plane, and the rotating shaft direction of the driving rod 10 is parallel to that of the driving disc 9.
One end of the driving rod 10 far away from the driving disc 9 is rotatably connected with the end part of the control piston 5 far away from the cavity 13, and the rotating shaft directions of the two ends of the driving rod 10 are both arranged along the horizontal direction. When one end of the driving rod 10, which is far away from the control piston 5, is positioned on one side of the driving disc 9, which is far away from the control piston 5, the communicating water pipe 4 is in a conducting state; when the end of the driving rod 10 far from the control piston 5 is positioned on the side of the driving disc 9 close to the control piston 5, the communication water pipe 4 is in a closed state.
The driving motor 6 works to enable the driving disc 9 to rotate, the driving disc 9 enables one end of the driving rod 10 to rotate, and then the driving rod 10 is driven to move, so that the driving rod 10 drives the control piston 5 to reciprocate along the radial line direction of the communicated water pipe 4, and further the automatic displacement control process of the control piston 5 is achieved.
A limit block 11 is fixedly arranged in the seabed valve box 32, the limit block 11 is arranged in the vertical direction, a guide groove 12 arranged in the horizontal direction is formed in the limit block 11, the width of the guide groove 12 is the same as that of the driving disc 9, and the outer end portion of the driving disc 9 is arranged in the guide groove 12 and is in sliding connection with the guide groove 12.
When the driving disc 9 rotates, the outer edge of the driving disc 9 is arranged in the guide groove 12 and is in sliding connection with the guide groove 12, and the limiting block 11 plays a limiting role in the rotating track of the driving disc 9, so that the driving disc 9 can be more stably arranged in the required track to move.
Referring to fig. 1 and 3, a water level control module 1 is installed on the floating dock body 3, and the water level control module 1 is connected with a ballast pump 33; the ballast pump 33 operates in response to a control signal of the water level control module 1. When the floating dock body 3 needs to be lifted on the water surface, the user controls the ballast pump 33 to operate by operating the water level control module 1, thereby controlling the water inlet or outlet process of the sea chest 32.
The floating dock body 3 is provided with a state detection module 7, and the state detection module 7 is connected with the ballast pump 33 and used for detecting the working state of the ballast pump 33. When the floating dock body 3 works, the state detection module 7 detects the working state of the ballast pump 33 in real time, and when the state detection module 7 inquires that the ballast pump 33 is in a fault state, the state detection module 7 generates a detection signal and sends the detection signal.
The floating dock body 3 is further provided with a communication control module 8, the communication control module 8 is respectively connected with the state detection module 7 and the driving motor 6, and the communication control module 8 controls the driving motor 6 to operate in response to a detection signal of the state detection module 7.
When the state detection module 7 inquires that the ballast pump 33 is in a failure state, the state detection module 7 generates and transmits a detection signal. The communication control module 8 receives and responds to the detection signal of the state detection module 7, and then controls the driving motor 6 to operate, so that the driving motor 6 drives the control piston 5 to move, and the automatic displacement control process of the control piston 5 is realized.
The communication control module 8 is connected with the water level control module 1, and the communication control module 8 controls the driving motor 6 to operate in response to a control signal of the water level control module 1. When the ballast pump 33 is in a failure state, the water level control module 1 cannot directly control the operation of the damaged ballast pump 33.
At this time, the communication control module 8 receives and responds to the control signal of the water level control module 1 according to the detection signal of the state detection module 7, and controls the driving motor 6 to operate, so that the communication water pipe 4 is automatically communicated with two adjacent seabed valve boxes 32 with the fault ballast pump 33, and the communication control function of the communication water pipe 4 is further improved.
The implementation principle of the water level control system of the floating dock in the embodiment of the application is as follows: when the floating dock body 3 needs to be lifted on the water surface and a certain ballast pump 33 has a fault, the communication control module 8 receives and responds to a control signal of the water level control module 1 according to a detection signal of the state detection module 7 to control the driving motor 6 to operate, so that the communication water pipe 4 is automatically communicated with two adjacent seabed valve boxes 32 with the fault ballast pump 33, the seabed valve boxes 32 with the fault ballast pumps 33 can perform water inlet and outlet operations through the ballast pumps 33 of the adjacent seabed valve boxes 32, and the water inlet and outlet functions of the seabed valve boxes 32 are further completed.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A floating dock water level control system, comprising:
the floating dock body (3), the floating dock body (3) comprises a support part (31), a seabed valve box (32) arranged at the bottom end of the support part (31) and a ballast pump (33) matched with the seabed valve box (32) for use;
a water level control module (1) installed at the floating dock body (3) and connected with the ballast pump (33);
wherein the ballast pump (33) operates in response to a control signal of the water level control module (1);
the valve boxes (32) are multiple, a communication water pipe (4) used for communicating the adjacent valve boxes (32) is arranged between the adjacent valve boxes (32), communication control mechanisms are arranged at two ends of the communication water pipe (4), and the communication control mechanisms are located in the valve boxes (32).
2. A floating dock water level control system as claimed in claim 1 wherein: the communication control mechanism comprises a control piston (5) and a drive motor (6) for driving the control piston (5); the outer diameter of the control piston (5) is the same as the inner diameter of the communicating water pipe (4), and the control piston (5) is connected with the inner wall of the communicating water pipe (4) in a sliding mode along the radial direction of the communicating water pipe (4).
3. A floating dock water level control system as claimed in claim 2 wherein: a state detection module (7) connected with the ballast pump (33) is arranged on the floating dock body (3);
the floating dock body (3) is also provided with a communication control module (8) which is respectively connected with the state detection module (7) and the driving motor (6);
the communication control module (8) responds to the detection signal of the state detection module (7) to control the driving motor (6) to operate.
4. A floating dock water level control system as claimed in claim 3 wherein: the communication control module (8) is connected with the water level control module (1), and the communication control module (8) controls the operation of the driving motor (6) in response to a control signal of the water level control module (1).
5. A floating dock water level control system as claimed in claim 2 wherein: the driving mechanism is characterized in that a driving disc (9) is coaxially and fixedly arranged on an output shaft of the driving motor (6), a driving rod (10) is rotatably connected to the side edge of the driving disc (9), and one end, far away from the driving disc (9), of the driving rod (10) is movably connected with the control piston (5).
6. A floating dock water level control system as claimed in claim 5 wherein: a limit block (11) is fixedly arranged in the submarine valve box (32), a guide groove (12) is formed in the limit block (11), and the outer end of the driving disc (9) is arranged in the guide groove (12) and is in sliding connection with the guide groove (12).
7. A floating dock water level control system as claimed in claim 5 wherein: the end part, far away from the driving rod (10), of the control piston (5) is coaxially provided with a cavity (13), and the side wall of the control piston (5) is provided with a through hole (14) communicated with the cavity (13).
8. A floating dock water level control system as claimed in claim 2 wherein: the two ends of the communicating water pipe (4) are both provided with guide slopes (15), and the guide slopes (15) are connected with the control piston (5) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123343887.9U CN216636786U (en) | 2021-12-28 | 2021-12-28 | Water level control system of floating dock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123343887.9U CN216636786U (en) | 2021-12-28 | 2021-12-28 | Water level control system of floating dock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216636786U true CN216636786U (en) | 2022-05-31 |
Family
ID=81744826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123343887.9U Active CN216636786U (en) | 2021-12-28 | 2021-12-28 | Water level control system of floating dock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216636786U (en) |
-
2021
- 2021-12-28 CN CN202123343887.9U patent/CN216636786U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2754187C (en) | Service space for a retractable propulsion device or corresponding | |
| US5549070A (en) | In-water dry dock system | |
| CN101704406A (en) | Offshore automatic mobile platform | |
| CN106368194A (en) | Safe fishing device for navigation channel | |
| CN216636786U (en) | Water level control system of floating dock | |
| KR20110010854A (en) | Power generation apparatus using gravitation force and bouyancy | |
| CN115042930B (en) | Ballast water tank and floating dock | |
| KR20120004160A (en) | Water-turbine generating apparatus for ship and ship comprising the same | |
| CN210507360U (en) | Pneumatic floating driving device for cabin working door | |
| CN208073786U (en) | Packaging float-type self priming pump | |
| CN220410842U (en) | Large pontoon type pump station with straight gate for blocking river | |
| KR101805493B1 (en) | Lifting control apparatus of lifting operation in azimuth thruster recovery operation | |
| CN219840023U (en) | Intelligent equipment for submarine shield bottom dry chamber cabin for underwater concrete overhaul | |
| CN109649620A (en) | A kind of combined type spray pump propeller | |
| CN218156674U (en) | Floating barrel processing air tightness testing device | |
| CN111422311B (en) | Floating platform pilot test ballast water system and control method thereof | |
| KR20140062718A (en) | A vessel with retractable thruster | |
| CN203835438U (en) | Gas extraction pipe water drainage device | |
| KR20090053669A (en) | Current power generation module with ascending, descending and trim control | |
| CN112983724B (en) | Wave energy power generation device tidal range automatic compensation system and control method thereof | |
| CN220743293U (en) | Marine fluid extraction system | |
| JP4913997B2 (en) | EDM system and equipment | |
| CN105804004A (en) | Wave prevention and elimination device used for harbor basin entrance | |
| JP2005247423A (en) | Handling system of liquid cargo for vessel | |
| CN116378130A (en) | Intelligent operation method of submersible shield bottom dry chamber cabin for underwater concrete overhaul |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |