CN114414135B - Device for obtaining differential pressure value of underwater dredge pipeline of dredging ship - Google Patents
Device for obtaining differential pressure value of underwater dredge pipeline of dredging ship Download PDFInfo
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- CN114414135B CN114414135B CN202210048409.5A CN202210048409A CN114414135B CN 114414135 B CN114414135 B CN 114414135B CN 202210048409 A CN202210048409 A CN 202210048409A CN 114414135 B CN114414135 B CN 114414135B
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
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Abstract
The invention provides a device for acquiring a differential pressure value of an underwater dredge pipeline of a dredging ship, which comprises the following components: the measuring tube is arranged outside the mud discharging tube and communicated with the mud discharging tube, and a movable piston is arranged in the measuring tube in a sliding manner; the two ends of the measuring cylinder are closed, the measuring cylinder is fixedly arranged in front of the end part of the measuring tube, a measuring piston is arranged in the measuring cylinder in a sliding manner, and the measuring cylinder is divided into two measuring areas; one end of the piston rod penetrates through the measuring cylinder and is fixedly connected with the measuring piston, and the other end of the piston rod is fixedly connected with the movable piston; the two electronic barometers are respectively communicated with the two measuring areas; the sensing assembly is erected on one side of the piston rod and acquires the position of the piston rod when the piston rod moves in real time; the driving assembly is erected on the other side of the piston rod and is matched with the piston rod through the second transmission assembly; when the driving component is driven to a certain position through the second transmission component, the piston rod is driven to move. The device can accurately acquire the pressure difference between the inside and the outside of the pipe in real time, and reset and zero the pressure difference detection structure through the driving component and the sensing component.
Description
Technical Field
The invention relates to the technical field of differential pressure detection, in particular to a device for acquiring differential pressure values of an underwater dredge pipeline of a dredging ship.
Background
The dredging ship is used in dredging river, sea channel, wharf, etc. and has mainly dredging and sludge draining. When dredging, the dredged mud is discharged through a common mud discharge pipeline, the dredging ship moves along the mud discharge pipeline, the driving equipment reduces the pressure value in the mud discharge pipeline, and the mud is discharged along the pipeline through the pressure difference. However, in the mud discharging link, if the related differential pressure value is not obtained in real time, problems such as blockage of a mud discharging pipe, untimely mud discharging, empty discharging and the like are very easy to occur, so that the pressure difference between the inside of the pipeline and the outside of the pipeline is important data which are indispensable in the dredging operation.
When the existing dredging operation is performed, the acquisition mode of the differential pressure inside and outside the dredge pipe is lacking, the arrangement of the underwater differential pressure sensor has the problem of sealing and insulation, and the accuracy of the detection data of the differential pressure sensor is greatly influenced by a large amount of sediment environment; in addition, due to underwater environmental factors, accurate resetting and adjustment of the differential pressure detection device are difficult to achieve.
The present application therefore proposes a new device for obtaining differential pressure values of an underwater dredging vessel.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a device for acquiring the differential pressure value of an underwater dredge pipeline of a dredging ship. The device can accurately acquire the pressure difference between the inside and the outside of the pipe in real time, and reset and zero the pressure difference detection structure through the driving component and the sensing component.
The invention provides the following technical scheme.
An apparatus for obtaining differential pressure values of an underwater dredge pipe of a dredging vessel, comprising:
the measuring tube is arranged outside the mud discharging tube and communicated with the mud discharging tube, and a movable piston is arranged in the measuring tube in a sliding manner;
the two ends of the measuring cylinder are closed, the measuring cylinder is fixedly arranged in front of the end part of the measuring tube, a measuring piston is arranged in the measuring cylinder in a sliding manner, and the measuring cylinder is divided into two measuring areas;
one end of the piston rod penetrates through the measuring cylinder and is fixedly connected with the measuring piston, and the other end of the piston rod is fixedly connected with the movable piston;
the two electronic barometers are respectively communicated with the two measuring areas and are connected with the controller through connecting cables;
the sensing assembly is erected on one side of the piston rod and matched with the piston rod through the first transmission assembly, and the position of the piston rod when moving is obtained in real time;
the driving assembly is erected on the other side of the piston rod and is matched with the piston rod through a second transmission assembly; and when the driving assembly is driven to a certain position through the second transmission assembly, the piston rod is driven to move.
Preferably, the method further comprises:
the mounting plate is fixedly arranged at the end part of the measuring tube;
one end of each supporting rod is fixedly connected with the mounting plate;
the bottom of the fixed plate is fixedly connected with the other ends of the two support rods; the measuring cylinder is fixedly connected with the fixed plate;
the two sides of the double-sided rack are provided with teeth, and the two ends of the double-sided rack are respectively fixedly connected with the other end of the piston rod and the movable piston.
Preferably, the sensing assembly comprises:
the mounting box is fixedly arranged on the mounting plate, and one side of the opening faces the double-sided rack;
the first gear is rotatably erected between the top and the bottom in the installation box through a first rotating shaft and is meshed with one side of the double-sided rack;
the photoelectric encoder is arranged at the top of the mounting box, and the test end of the photoelectric encoder is rotationally connected with the first rotating shaft; the photoelectric encoder is connected with the controller through a connecting cable.
Preferably, the driving assembly includes:
two frame plates fixedly arranged on the mounting plate;
the movable plate is erected between the two frame plates;
the C-shaped guard plate is fixedly arranged at the bottom of the movable plate;
the second gear is rotatably arranged between the top and the bottom in the C-shaped guard plate groove through a second rotating shaft;
the first submersible motor is fixedly arranged at the bottom of the C-shaped guard plate, and an output shaft of the first submersible motor is in transmission connection with the second rotating shaft; the first submersible motor is connected with the controller through a connecting cable;
the moving assembly is erected on the two frame plates and drives the moving plate to move; and the moving assembly is meshed with the other side of the double-sided rack when driving the second gear to a certain position.
Preferably, the moving assembly comprises:
the screw rod passes through the moving plate and is in threaded fit with the moving plate; two ends of the frame plate are respectively connected with the two frame plates in a rotating way;
the polished rod penetrates through the moving plate and is in sliding fit with the moving plate; two ends of the frame plate are fixedly connected with the two frame plates respectively;
the second submersible motor is fixedly arranged on the outer side of one frame plate and is in transmission connection with the lead screw; the second submersible motor is connected with the controller through a connecting cable.
Preferably, an anti-clogging structure is also included; the anti-blocking structure is arranged in the mud pipe, and comprises:
the filter plate is rotationally connected with an inlet of the mud discharge pipe communicated with the measuring pipe;
the fixed ring is fixedly arranged on the inner wall of the mud pipe;
one end of the spring is fixedly connected with the bottom of the fixed ring;
the outer cambered surface of the fan ring plate is matched with the inner wall of the mud discharging pipe, and the top of the fan ring plate is fixedly connected with the other end of the spring;
one end of the lifting shaft is fixedly connected with the top of the fan ring plate, and the other end of the lifting shaft sequentially penetrates through the spring and the fixing ring;
and two ends of the connecting rod are respectively connected with the plate surface of the filter plate and the other end of the lifting shaft in a rotating way.
Preferably, a waterproof housing is arranged outside the photoelectric encoder; and a sealing ring is arranged between the testing end of the photoelectric encoder and the waterproof shell.
Preferably, a sealing ring is arranged between the piston rod and the fixed plate.
The invention has the beneficial effects that:
the invention provides a device for acquiring a differential pressure value of an underwater dredge pipeline of a dredging ship. Because the detection mode of the air pressure is more convenient, the device converts the pressure difference between the inside and the outside of the pipe into the air pressure difference in the two cavities through the piston rod, the air pressure difference between the inside and the outside of the pipe can be obtained by measuring and calculating the air pressure difference between the two cavities, the accuracy is higher, and the error problem caused by the contact of the test element and muddy water and the defect of easy damage are avoided; the device acquires the displacement condition of the piston rod when the pressure difference changes through the arrangement of the gear rack structure and the combination of the sensing component of the photoelectric encoder, further assists in pressure difference measurement, and simultaneously provides the position information of the piston rod for the driving component for resetting and zeroing; the device is convenient for follow-up calibration zeroing through setting up the passive removal of drive assembly drive piston rod, combining the positional information that the sensing assembly obtained.
Drawings
FIG. 1 is a perspective view showing the internal structure of an apparatus for acquiring differential pressure values of an underwater dredge pipeline of a dredging vessel according to an embodiment of the present invention;
FIG. 2 is an overall assembly view of an apparatus for acquiring differential pressure values of a dredging vessel's underwater dredge pipeline according to an embodiment of the present invention;
FIG. 3 is a partial perspective view of an apparatus for acquiring differential pressure values of an underwater dredge pipeline of a dredging vessel according to an embodiment of the present invention;
FIG. 4 is a partial perspective view of another view of an apparatus for acquiring differential pressure values of an underwater dredge pipeline of a dredging vessel according to an embodiment of the present invention;
fig. 5 is a partial construction diagram of an inside of a dredge pipe of the apparatus for acquiring differential pressure values of an underwater dredge pipe of a dredging vessel according to an embodiment of the present invention.
In the figure: 1. a mud pipe; 2. a measuring tube; 3. a mounting plate; 4. a bus cable; 5. a mounting box; 6. a fixing plate; 7. a piston rod; 8. a measuring piston; 9. a measuring cylinder; 10. a first electronic barometer; 11. a second electronic barometer; 12. a connection cable; 13. a double-sided rack; 14. a support rod; 15. moving the piston; 16. a photoelectric encoder; 17. a first gear; 18. a second gear; 19. a frame plate; 20. a moving plate; 21. a polish rod; 22. a screw rod; 23. a second submersible motor; 24. c-shaped guard plates; 25. a first submersible motor; 26. a filter plate; 27. a connecting rod; 28. a lifting shaft; 29. a fixing ring; 30. a spring; 31. and a fan ring plate.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Examples
An apparatus for obtaining differential pressure values of an underwater dredge pipe of a dredging vessel, as shown in figures 1-5, comprising:
a measuring tube 2 arranged outside the mud pipe 1 and communicated with the mud pipe 1, and a movable piston 15 arranged in the measuring tube in a sliding manner; the two ends of the measuring cylinder 9 are closed, the measuring cylinder 9 is fixedly arranged in front of the end part of the measuring tube 2, a measuring piston 8 is arranged in the measuring cylinder in a sliding manner, and the measuring cylinder 9 is divided into two measuring areas; one end of the piston rod 7 passes through the measuring cylinder 9 and is fixedly connected with the measuring piston 8, and the other end of the piston rod is fixedly connected with the movable piston 15; the two electronic barometers are respectively communicated with the two measuring areas and are connected with the controller through the connecting cables 12. As shown in fig. 1 and 3, when a pressure difference is generated inside and outside the tube, that is, the pressure inside the tube is smaller than the pressure outside the tube, the moving piston 15 moves to further drive the piston rod 7 to move, so that the cavities of the two measuring areas are respectively compressed and expanded, and two unequal air pressure spaces are formed. The air pressure of the two measuring areas is obtained through the first electronic air pressure meter 10 and the second electronic air pressure meter 11 respectively, and the pressure difference between the inside and the outside of the tube can be obtained by calculating the pressure difference acting on the measuring piston 8.
Further, as shown in fig. 3 and fig. 4, the method further includes: the sensing assembly is erected on one side of the piston rod 7 and matched with the piston rod 7 through the first transmission assembly, and the position of the piston rod 7 during movement is obtained in real time. Specifically, the method comprises the following steps: a mounting plate 3 fixedly provided at an end portion of the measurement pipe 2; two support rods 14, one end of which is fixedly connected with the mounting plate 3; the bottom of the fixed plate 6 is fixedly connected with the other ends of the two support rods 14; the measuring cylinder 9 is fixedly connected with the fixed plate 6; the double-sided rack 13 is provided with teeth on both sides, and both ends are fixedly connected with the other end of the piston rod 7 and the movable piston 15 respectively. The mounting box 5 is fixedly arranged on the mounting plate 3, and one side of the opening faces the double-sided rack 13; a first gear 17 rotatably installed between the top and bottom of the inside of the installation box 5 through a first rotation shaft and engaged with one side of the double-sided rack 13; the photoelectric encoder 16 is arranged at the top of the installation box 5, and the test end of the photoelectric encoder is rotationally connected with the first rotating shaft; the photoelectric encoder 16 is connected to the controller through the connection cable 12. Due to the engagement of the first gear 17 and the double-sided rack 13, when the piston rod 7 moves, the first gear 17 is driven to rotate, and then the test shaft of the photoelectric encoder 16 is driven to acquire the rotating angle and the number of turns. The moving distance of the piston rod 7 is calculated according to the transmission parameters of the gear rack and the sensing data obtained by the photoelectric encoder 16. The moving distance of the measuring piston 8 can be obtained through the moving distance of the piston rod 7, and the pressure difference at two sides of the measuring piston 8 is calculated according to the compression condition of the two cavities, so that the pressure difference between the inside and the outside of the pipe is obtained.
The two pressure difference obtaining modes are the first pressure difference obtaining mode which is more direct and quicker.
In order to ensure accuracy in measurement, resetting and zeroing are required before use, or when re-used. Thus, it further comprises: the driving assembly is erected on the other side of the piston rod 7 and is matched with the piston rod 7 through a second transmission assembly; the driving assembly drives the piston rod 7 to move when being transmitted to a certain position through the second transmission assembly. Specifically, as shown in fig. 4, the method includes: two shelf plates 19 fixedly arranged on the mounting plate 3; a moving plate 20 installed between the two shelf plates 19; the C-shaped guard plate 24 is fixedly arranged at the bottom of the movable plate 20; the second gear 18 is rotatably arranged between the top and the bottom in the groove of the C-shaped guard plate 24 through a second rotating shaft; the first submersible motor 25 is fixedly arranged at the bottom of the C-shaped guard plate 24, and an output shaft of the first submersible motor is in transmission connection with the second rotating shaft; the first submersible motor 25 is connected with the controller through a connecting cable 12; the moving assembly is arranged on the two frame plates 19 and drives the moving plate 20 to move; the moving assembly drives the second gear 18 to a position to engage the other side of the double-sided rack 13. The moving assembly includes: a screw 22 penetrating the moving plate 20 and screw-engaged with the moving plate 20; both ends of the two support plates are respectively connected with the two support plates 19 in a rotating way; a polish rod 21 passing through the moving plate 20 and slidably engaged with the moving plate 20; two ends of the frame plate are fixedly connected with two frame plates 19 respectively; the second submersible motor 23 is fixedly arranged on the outer side of one frame plate 19 and is in transmission connection with the screw rod 22; the second submersible motor 23 is connected to the controller by means of a connection cable 12. The second gear 18 is moved to achieve engagement with the double-sided rack 13 by actuation of the second submersible motor 23 and engagement of the screw drive assembly. The first submersible motor 25 is driven to realize the passive movement of the piston rod 7 through the transmission of a gear rack, and finally realize the reset and zero setting.
In order to ensure data accuracy, connectivity between the mud pipe 1 and the measuring pipe 2 needs to be ensured, and therefore, an anti-blocking structure is further included; the anti-blocking structure sets up in 1 intraductal of mud pipe, includes: the filter plate 26 is rotationally connected with an inlet of the mud discharge pipe 1 communicated with the measuring pipe 2; a fixing ring 29 fixedly provided on the inner wall of the sludge discharge pipe 1; a spring 30, one end of which is fixedly connected with the bottom of the fixing ring 29; the fan ring plate 31, the outer cambered surface is matched with the inner wall of the mud pipe 1, and the top is fixedly connected with the other end of the spring 30; a lifting shaft 28, one end of which is fixedly connected with the top of the fan ring plate 31, and the other end of which sequentially passes through a spring 30 and a fixed ring 29; and two ends of the connecting rod 27 are respectively and rotatably connected with the plate surface of the filter plate 26 and the other end of the lifting shaft 28. As shown in fig. 5, when the solid amount of muddy water is excessive, it is accumulated at the bottom of the sector ring plate 31, so that the moving sector ring plate 31 moves upward. The opening and closing of the filter plates 26 is achieved by a set of linkage arrangements, which avoids the clogging of the channels by mud.
Further, the apparatus needs to be waterproof, so that a waterproof housing is arranged outside the photoelectric encoder 16; a sealing ring is provided between the test end of the photoelectric encoder 16 and the waterproof housing. A sealing ring is arranged between the piston rod 7 and the fixed plate 6.
In the present embodiment of the present invention,
the invention provides a device for acquiring differential pressure values of an underwater dredge pipeline of a dredging ship, which comprises two modes for acquiring the differential pressure values inside and outside the pipeline, and is characterized in that:
1. the controller is arranged at the dredging ship control console, communicates with the underwater equipment through communication equipment, and can also perform sensing data transmission and motor control through wires through the bus 4. When the mud discharging operation is performed, the pressure value in the mud discharging pipe 1 is reduced, and mud is discharged through negative pressure. When the pressure difference is generated inside and outside the tube, namely the pressure in the tube is smaller than that outside the tube, the movable piston 15 in the measuring tube 2 moves under the action of the pressure difference, and further drives the piston rod 7 to move, so that the cavities of the two measuring areas are respectively compressed and expanded to form two unequal air pressure spaces. The air pressure of the two measuring areas is respectively obtained through the first electronic air pressure gauge 10 and the second electronic air pressure gauge 11, data transmission is carried out through the connecting cable 12, and the controller obtains the numerical values of the two air pressure gauges, namely, the pressure difference acting on the measuring piston 8 can be calculated, and the pressure difference between the inside and the outside of the pipe is obtained.
2. In the sensing assembly of the invention, due to the engagement of the first gear 17 and the double-sided rack 13, when the piston rod 7 moves, the first gear 17 is driven to rotate, and then the test shaft of the photoelectric encoder 16 is driven to rotate, so as to obtain sensing data, and the sensing data is transmitted to the controller through the connecting wire, so that the rotating angle and the number of turns are further calculated. The moving distance of the piston rod 7 is calculated according to the transmission parameters of the gear rack and the sensing data obtained by the photoelectric encoder 16. The moving distance of the measuring piston 8 can be obtained through the moving distance of the piston rod 7, and the pressure difference at two sides of the measuring piston 8 is calculated according to the compression condition of the two cavities, so that the pressure difference between the inside and the outside of the pipe is obtained. The two pressure difference obtaining modes are the first pressure difference obtaining mode which is more direct and quick.
The invention is provided with a driving component for resetting and zeroing, and particularly, when the resetting and zeroing are needed, the driving and moving device drives the second gear 18 to move forward to be meshed with the bilateral rack 13. The first submersible motor 25 is controlled to rotate through the controller, so that the passive movement of the piston rod 7 can be realized through the transmission of a gear rack, and finally the reset and the zeroing are realized.
In order to ensure data accuracy, connectivity of the mud pipe 1 and the measuring pipe 2 needs to be ensured, the invention is provided with an anti-blocking structure to realize the functions: when the solid amount of the muddy water is excessive, the muddy water is accumulated at the bottom of the fan ring plate 31, so that the movable fan ring plate 31 moves upwards. The opening and closing of the filter plates 26 are realized through a set of connecting rod structures, so that the detection channels are prevented from being blocked when a large amount of slurry passes through.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. An apparatus for obtaining differential pressure values of an underwater dredge pipe of a dredging vessel, comprising:
the measuring tube (2) is arranged outside the mud discharging tube (1), is communicated with the mud discharging tube (1), and is internally provided with a movable piston (15) in a sliding manner;
the two ends of the measuring cylinder (9) are closed, the measuring cylinder is fixedly arranged in front of the end part of the measuring tube (2), a measuring piston (8) is arranged in the measuring cylinder in a sliding manner, and the measuring cylinder (9) is divided into two measuring areas;
a piston rod (7), one end of which passes through the measuring cylinder (9) and is fixedly connected with the measuring piston (8), and the other end of which is fixedly connected with the movable piston (15);
the two electronic barometers are respectively communicated with the two measuring areas and are connected with the controller through connecting cables (12);
the sensing assembly is erected on one side of the piston rod (7) and matched with the piston rod (7) through the first transmission assembly, and the position of the piston rod (7) when moving is obtained in real time;
the driving assembly is erected on the other side of the piston rod (7) and is matched with the piston rod (7) through a second transmission assembly; when the driving component is transmitted to a certain position through the second transmission component, the piston rod (7) is driven to move;
further comprises:
the mounting plate (3) is fixedly arranged at the end part of the measuring tube (2);
one end of each supporting rod (14) is fixedly connected with the mounting plate (3);
the bottom of the fixed plate (6) is fixedly connected with the other ends of the two supporting rods (14); the measuring cylinder (9) is fixedly connected with the fixed plate (6);
the two sides of the double-sided rack (13) are provided with teeth, and the two ends of the double-sided rack are respectively fixedly connected with the other end of the piston rod (7) and the movable piston (15);
the sensing assembly includes:
the mounting box (5) is fixedly arranged on the mounting plate (3), and one side of the opening faces the double-sided rack (13);
the first gear (17) is rotatably erected between the top and the bottom inside the installation box (5) through a first rotating shaft and is meshed with one side of the double-sided rack (13);
the photoelectric encoder (16) is arranged at the top of the mounting box (5), and the test end of the photoelectric encoder is rotationally connected with the first rotating shaft; the photoelectric encoder (16) is connected with the controller through a connecting cable (12);
the drive assembly includes:
two frame plates (19) fixedly arranged on the mounting plate (3);
a moving plate (20) arranged between the two frame plates (19);
a C-shaped guard plate (24) fixedly arranged at the bottom of the movable plate (20);
the second gear (18) is rotatably arranged between the top and the bottom in the groove of the C-shaped guard plate (24) through a second rotating shaft;
the first submersible motor (25) is fixedly arranged at the bottom of the C-shaped guard plate (24), and an output shaft of the first submersible motor is in transmission connection with the second rotating shaft; the first submersible motor (25) is connected with the controller through a connecting cable (12);
the moving assembly is erected on the two frame plates (19) and drives the moving plate (20) to move; the moving assembly is meshed with the other side of the double-sided rack (13) when driving the second gear (18) to a certain position;
the moving assembly includes:
a screw (22) passing through the moving plate (20) and being screw-fitted with the moving plate (20); two ends of the frame plate are respectively connected with the two frame plates (19) in a rotating way;
a polish rod (21) passing through the moving plate (20) and being in sliding fit with the moving plate (20); two ends of the frame plate are fixedly connected with two frame plates (19) respectively;
the second submersible motor (23) is fixedly arranged on the outer side of one frame plate (19) and is in transmission connection with the screw rod (22); the second submersible motor (23) is connected with the controller through a connecting cable (12).
2. The apparatus for obtaining a differential pressure value of an underwater dredge conduit of a dredging vessel according to claim 1, further comprising an anti-clogging structure; the anti-blocking structure is arranged in the mud pipe (1) pipe and comprises:
the filter plate (26) is rotationally connected with an inlet of the mud discharge pipe (1) communicated with the measuring pipe (2);
a fixing ring (29) fixedly arranged on the inner wall of the sludge discharge pipe (1);
one end of the spring (30) is fixedly connected with the bottom of the fixed ring (29);
the fan ring plate (31) is matched with the inner wall of the mud discharging pipe (1), and the top of the fan ring plate is fixedly connected with the other end of the spring (30);
a lifting shaft (28), one end of which is fixedly connected with the top of the fan ring plate (31), and the other end of which sequentially passes through the spring (30) and the fixed ring (29);
and two ends of the connecting rod (27) are respectively and rotatably connected with the plate surface of the filter plate (26) and the other end of the lifting shaft (28).
3. Device for obtaining the differential pressure value of the dredging vessel underwater dredging pipe according to claim 1, characterized in that the photoelectric encoder (16) is externally provided with a waterproof casing; a sealing ring is arranged between the testing end of the photoelectric encoder (16) and the waterproof shell.
4. Device for obtaining the differential pressure value of an underwater dredging vessel's dredging pipe according to claim 1, characterized in that a sealing ring is arranged between the piston rod (7) and the fixing plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048409.5A CN114414135B (en) | 2022-01-17 | 2022-01-17 | Device for obtaining differential pressure value of underwater dredge pipeline of dredging ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210048409.5A CN114414135B (en) | 2022-01-17 | 2022-01-17 | Device for obtaining differential pressure value of underwater dredge pipeline of dredging ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207101983U (en) * | 2017-07-05 | 2018-03-16 | 中山市中开环保设备制造有限公司 | Mud discharging device |
| CN110259464A (en) * | 2018-11-28 | 2019-09-20 | 安徽铜都流体科技股份有限公司 | A kind of slurry shield machine efficient intelligent type integrated system pipe connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH656465A5 (en) * | 1982-07-02 | 1986-06-30 | Klaus Fischer Mess Und Regelte | Pressure measuring device for determining overpressure, underpressure and differential pressure |
| US6363566B1 (en) * | 1999-12-18 | 2002-04-02 | Michael Collins | Drain valve and pipe blockage clearing device |
| KR100864162B1 (en) * | 2007-04-17 | 2008-10-16 | 현대건설주식회사 | Apparatus for measuring differential pressure of dredging transportation pipe line |
| CN102235931A (en) * | 2010-04-20 | 2011-11-09 | 镇江市亿华***集成有限公司 | Device for acquiring pressure differential of underwater dredge pipeline of dredging ship |
| US9057654B2 (en) * | 2012-05-01 | 2015-06-16 | James H. Gammon | Differential pressure gauge |
| CN105333989B (en) * | 2014-06-12 | 2018-05-25 | 国家核电技术有限公司 | For measuring the pressure-inducting device of the differential pressure of liquid medium in pipeline |
| CN104864832B (en) * | 2015-05-19 | 2017-07-28 | 同济大学 | A kind of pressure sensor measuring thickness device for drainage pipeline silting |
| CN111947827A (en) * | 2020-10-19 | 2020-11-17 | 南京高华科技股份有限公司 | Marine high-static-pressure-resistant differential pressure measuring device, ship and measuring method |
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2022
- 2022-01-17 CN CN202210048409.5A patent/CN114414135B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207101983U (en) * | 2017-07-05 | 2018-03-16 | 中山市中开环保设备制造有限公司 | Mud discharging device |
| CN110259464A (en) * | 2018-11-28 | 2019-09-20 | 安徽铜都流体科技股份有限公司 | A kind of slurry shield machine efficient intelligent type integrated system pipe connector |
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