CN112985705B

CN112985705B - Underwater leakage tracing detection equipment and detection method carried on ROV

Info

Publication number: CN112985705B
Application number: CN202110098724.4A
Authority: CN
Inventors: 唐云鹏; 贺锋云; 蒋劲松; 龙中凡; 阳孝东
Original assignee: Hunan Water Conservancy Investment Local Power Co ltd
Current assignee: Hunan Water Conservancy Investment Local Power Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2023-04-14
Anticipated expiration: 2041-01-25
Also published as: CN112985705A

Abstract

The utility model relates to a carry on ROV's seepage tracer check out test set and detection method under water, it includes running gear, last tracer mechanism and the detection mechanism of being provided with of running gear, still including being used for only trailing drive mechanism to running gear, tracer mechanism includes the casing and sets up the ink reservoir in the casing, be provided with mixing passage in the casing, the ink reservoir is provided with the play china ink mouth that communicates with mixing passage, seted up on the casing with the water inlet and the outlet of mixing passage intercommunication, be provided with the stirring subassembly in the mixing passage, be provided with the subassembly of opening and close that is used for opening and close water inlet and play china ink mouth in the casing. This application has the effect of being convenient for carry out the hourglass to darker dam.

Description

Underwater leakage tracing detection equipment and detection method carried on ROV

Technical Field

The application relates to the technical field of dam detection, in particular to an underwater leakage tracing detection device carried on an ROV and a detection method.

Background

After the dam is used for a long time, the dam is leaked due to the fact that cracks are generated under the action of water flow scouring, erosion and the like, the safety of the dam is seriously affected, and therefore the cracks in the dam must be detected regularly.

The traditional leak hunting mode is that the diver carries ink jet device and dives into in the water, in case discover the danger point, can open the valve, and the high pressure equipment on the bank can be hit the tracer into the target point, and the near waters of target point can be dyed. If the crack exists, the pressure difference between the inside and the outside of the crack can force the dyed water body to flow into the crack, so that the position of the crack can be observed.

In view of the above related technologies, the inventor believes that the traditional leak detection method requires a professional diver to perform manual ink jet, the diving depth of the diver is limited, and ink jet leak detection cannot be performed on a dam at a deeper position.

Disclosure of Invention

In order to facilitate the leakage detection of a deeper dam, the application provides the underwater leakage tracing detection equipment carried on the ROV and the detection method.

On one hand, the underwater leakage tracing and detecting equipment carried on the ROV adopts the following technical scheme:

the utility model provides a carry on seepage spike check out test set under water of ROV, includes running gear, last spike mechanism and the detection mechanism of being provided with of running gear, still including being used for only trailing drive mechanism to running gear, spike mechanism includes the casing and sets up the apotheca in the casing, be provided with mixing passage in the casing, the apotheca is provided with the black mouth that communicates with mixing passage, seted up on the casing with water inlet and the outlet of mixing passage intercommunication, be provided with the stirring subassembly in the mixing passage, be provided with the subassembly of opening and close that is used for opening and close water inlet and black mouth in the casing.

Through adopting above-mentioned technical scheme, drive mechanism can drive running gear and walk in aqueous on the ground, and then drive spike mechanism and remove, can hold the tracer in the storage tank, when entering into and carry out the tracer under water, open and close the subassembly and open water inlet and ink outlet, the tracer in the storage tank enters into mixing channel from ink outlet, water can enter into mixing channel from the water inlet in, tracer and water can mix in mixing channel, dilute the tracer, then discharge the tracer after diluting from the outlet. Need not during the use staff and dive the aquatic and operate, can carry out the tracer to the dam of darker position, can dilute the tracer under water and use simultaneously, also can detect great scope carrying under the condition of less tracer, need not frequently to add the tracer to can reduce the volume of whole tracer mechanism, it is comparatively convenient to use.

Optionally, be provided with in the ink reservoir and extrude the subassembly, extrude the subassembly including rotating the extrusion pole of connection in the ink reservoir, threaded connection has the extrusion board on the extrusion pole, the extrusion board separates the ink reservoir for the space of two not intercommunications, be provided with on the inner wall of ink reservoir and order about the rotatory first motor of extrusion pole.

Through adopting above-mentioned technical scheme, extrusion mechanism can drive when first motor is rotatory with storing up the tracer mechanism in the ink chamber, and it is rotatory to drive the extrusion pole, and then orders about the extrusion board and remove, can be even extrude the tracer.

Optionally, the stirring assembly comprises a stirring shaft rotatably connected in the mixing channel, the stirring shaft is coaxial with the extrusion rod, a helical blade is fixed on the stirring shaft, and a transmission assembly for driving and connecting the extrusion rod and the stirring shaft is arranged in the shell.

Through adopting above-mentioned technical scheme, it is rotatory to extrude the pole and can drive the (mixing) shaft through drive assembly when rotatory, and then drives helical blade rotation, makes helical blade stir the water and the tracer in the mixing channel, makes the two can comparatively abundant mix, and mixed effect is better, need not other driving sources and control assembly simultaneously, can realize extruding the tracer and stir the dilution and can open in step and stop, and it is comparatively convenient to use.

Optionally, the transmission assembly includes a transmission case, a first gear coaxially connected with the extrusion rod is rotatably connected in the transmission case, a second gear engaged with the first gear is rotatably connected in the transmission case, a third gear is coaxially connected to the second gear, a fourth gear engaged with the third gear is arranged in the transmission case, the fourth gear is coaxially connected with the stirring shaft, the diameter of the first gear is greater than that of the second gear, and the diameter of the third gear is greater than that of the fourth gear.

Through adopting above-mentioned technical scheme, first gear and second gear are transmission with higher speed, and third gear and fourth gear are also the transmission with higher speed, when extrusion rod is rotatory slower, can make the (mixing) shaft rotatory with higher rotational speed, and stirring effect is better.

Optionally, the opening and closing assembly includes an opening and closing plate rotatably connected in the housing and a driving member for driving the opening and closing plate to rotate, the opening and closing plate is closely attached to an outer wall of the ink storage chamber, a water inlet connecting hole penetrating through the opening and closing plate is formed in the opening and closing plate, a distance between the connecting hole and an axis of the opening and closing plate is the same as a distance between the ink outlet and an axis of the opening and closing plate, a distance between the ink outlet and an axis of the extrusion rod is the same as a distance between the water inlet and an axis of the opening and closing plate, and when the water inlet connecting hole is aligned with the water inlet in a rotation process of the opening and closing plate, the ink inlet connecting hole is aligned with the ink outlet.

Through adopting above-mentioned technical scheme, the driving piece is opening and close the board rotation by orders about, and after opening and close the board rotation to certain angle, when the inlet connecting hole aligns the water inlet, advance the china ink connecting hole and aim at out the china ink mouth, can realize into water and advance the spike agent, after rotatory a less angle, can make the water inlet with advance the china ink connecting hole dislocation, advance china ink connecting hole and go out the china ink mouth dislocation, make the two seal simultaneously, can realize opening and close fast.

Optionally, the driving member includes a second motor fixed in the housing, the second motor is a step motor, a fifth gear is fixed on the second motor, and a gear ring engaged with the fifth gear is coaxially fixed on the opening and closing plate.

By adopting the technical scheme, when the second motor is powered on, the fifth gear can be driven to rotate, and then the opening and closing plate is driven to rotate through the meshing of the fifth gear and the gear ring.

Optionally, the traveling mechanism comprises a base, universal rollers are arranged on the base, and the shell is fixed on the base.

By adopting the technical scheme, the travelling mechanism can move towards all directions, so that the travelling mechanism can longitudinally move to different depths and transversely move to different positions, and the use is flexible.

Optionally, the traction mechanism comprises a tractor arranged on the ground, a traction rope is arranged on the tractor, and the traction rope is connected with the running mechanism.

Through adopting above-mentioned technical scheme, can drive running gear lateral shifting through the haulage rope when tractor walking, through adjusting haulage rope length, can drive running gear longitudinal movement.

In a second aspect, the present application provides an underwater leakage detection method, which adopts the following technical scheme:

an underwater leak detection method comprising the steps of:

s1, checking each part of a detection device to enable the detection device to be in an initial state;

s2, filling a tracer into the ink storage box;

s3, using a traction mechanism to pull the travelling mechanism to enable the travelling mechanism to move downwards along the surface of the dam to be below the liquid level of the reservoir;

s4, after the travelling mechanism moves to the observation area, opening the water inlet and the ink outlet through the opening and closing assembly, enabling the tracer and water to enter the mixing channel to be mixed, and then discharging the tracer and water from the water outlet;

and S5, tracking and recording the moving path of the tracer by a detection mechanism.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the travelling mechanism and the traction mechanism, the travelling mechanism can be driven to travel in water on the ground, so that the tracing mechanism is driven to move, a worker does not need to submerge into the water for operation, and the dam at a deeper position can be traced;

2. can dilute the use with the tracer under water, also can detect great scope carrying under the condition of less tracer, need not frequent addition tracer to can reduce the volume of whole tracer mechanism.

Drawings

Fig. 1 is a front view of an underwater leakage tracing detection apparatus and a detection method carried on an ROV according to an embodiment of the present application;

FIG. 2 is a schematic structural view of the traction mechanism of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the tracer mechanism of FIG. 1;

fig. 4 is a schematic structural view of the transmission assembly and the opening and closing assembly of fig. 3.

Description of reference numerals: 1. a hauling rope; 2. a traction mechanism; 21. a tractor; 22. a traction motor; 23. a supporting seat; 24. a winding roll; 3. a traveling mechanism; 31. a universal roller; 32. a base; 4. a tracing mechanism; 41. a housing; 42. a water inlet; 43. a water outlet; 44. an ink storage chamber; 45. a mixing channel; 46. an ink outlet; 5. an extrusion assembly; 51. an extrusion stem; 52. extruding a plate; 53. a first motor; 54. a guide bar; 6. an opening and closing assembly; 61. a shutter plate; 62. a second motor; 63. a fifth gear; 64. a ring gear; 65. a water inlet connecting hole; 66. an ink inlet connecting hole; 7. a stirring assembly; 71. a stirring shaft; 72. a helical blade; 8. a transmission assembly; 81. a transmission case; 82. a first gear; 83. a second gear; 84. a third gear; 85. a fourth gear.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses carry on underwater seepage spike check out test set of ROV, refer to fig. 1, including running gear 3 and the drive mechanism 2 of being connected with running gear 3 through haulage rope 1, be provided with the tracer mechanism 4 that is used for discharging the tracer and be used for observing the detection mechanism of tracer flow direction on the running gear 3.

Referring to fig. 2, the traction mechanism 2 includes a tractor 21, a roller and a power mechanism for driving the roller to rotate are arranged on the tractor 21, a traction motor 22 and a support seat 23 are fixed on the upper surface of the tractor 21, a winding roll is rotatably connected to the support seat 23, the winding roll is coaxially connected with the traction motor 22, the traction rope 1 is wound on the winding roll 24, the traction motor 22 is a forward and reverse rotation motor, and when the traction motor 22 is powered on to rotate forward, the winding roll can be driven to rotate forward to wind the traction rope 1; when the traction motor 22 rotates reversely, the winding roller can be driven to rotate reversely, and the traction rope 1 is loosened.

The haulage rope 1 is wire rope, can bear great load and not take place to warp and damage, and the haulage rope 1 is kept away from the one end of winding roll and is fixed on running gear 3.

Referring to fig. 3, the running mechanism 3 includes a base 32, four corners of the lower surface of the base 32 are respectively fixed with universal rollers 31, the universal rollers 31 can roll along any direction, the tractor 21 can drive the running mechanism 3 to move transversely along the dam surface through the traction rope 1 when running, and the traction motor 22 can drive the running mechanism 3 to move longitudinally along the dam surface when adjusting the length of the traction rope 1.

Referring to fig. 3, the tracing mechanism 4 includes a housing 41, the housing 41 is cylindrical and horizontally fixed on the base 32, a water inlet 42 and a water outlet 43 are respectively opened at two ends of the housing 41, and one end of the housing 41 near the water outlet 43 is tapered. An ink storage chamber 44 is arranged at one end of the inner cavity of the shell 41, which is close to the water inlet 42, the ink storage chamber 44 is used for containing a tracer, the tracer is a highly concentrated edible pigment tracer, and a small amount of concentrated tracer can still generate a large amount of diluted dyeing water after being mixed and diluted with external water, and is not polluted. A mixing passage 45 is provided in the housing 41, and both ends of the mixing passage 45 are respectively communicated with the water inlet 42 and the water outlet 43.

An ink outlet 46 is formed in one end, facing the water outlet 43, of the ink storage chamber 44, an extrusion assembly 5 is arranged in the ink storage chamber 44, the extrusion assembly 5 comprises an extrusion rod 51 rotatably connected in the ink storage chamber 44, an extrusion plate 52 is connected to the extrusion rod 51 in a threaded manner, the extrusion plate 52 divides the ink storage chamber 44 into two non-communicated spaces, a first motor 53 driving the extrusion rod 51 to rotate is arranged on the inner wall of the ink storage chamber 44, the first motor 53 is fixedly connected with the extrusion rod 51 in a coaxial manner, the first motor 53 can drive the extrusion rod 51 to rotate when being powered on, and the extrusion plate 52 is driven to slide through threaded matching of the extrusion rod 51 and the extrusion plate 52.

In order to prevent the extrusion plate 52 from rotating together with the extrusion rod 51, a guide rod 54 parallel to the extrusion rod 51 is fixed to the inner wall of the ink storage chamber 44, and a guide hole slidably fitted to the guide rod 54 is formed in the extrusion plate 52.

Referring to fig. 3 and 4, an opening and closing assembly 6 for opening and closing the water inlet 42 and the ink outlet 46 is disposed in the housing 41, the opening and closing assembly 6 includes an opening and closing plate 61 rotatably connected in the housing 41, and the opening and closing plate 61 is tightly attached to an outer wall of the ink storage chamber 44. Be provided with in the casing 41 and order about the rotatory driving piece of drive board 61, the driving piece is including fixing the second motor 62 in casing 41, second motor 62 is step motor, be fixed with fifth gear 63 on the output shaft of second motor 62, it has the ring gear 64 with the meshing of fifth gear 63 to open and close coaxial being fixed with on board 61, when second motor 62 switches on external power source, can drive the rotation of fifth gear 63, and then the cooperation through fifth gear 63 and ring gear 64 drives board 61 rotation of opening and close.

The opening and closing plate 61 is provided with a water inlet connecting hole 65 which penetrates through the opening and closing plate 61 and an ink inlet connecting hole 66, the water inlet connecting hole 65 is uniformly arranged at sixteen intervals along the circumferential direction of the opening and closing plate 61, the ink inlet connecting hole 66 is uniformly arranged at four intervals along the circumferential direction of the opening and closing plate 61, the distance between the ink inlet connecting hole 66 and the axis of the opening and closing plate 61 is the same as the distance between the ink outlet 46 and the axis of the opening and closing plate 61, the distance between the water inlet connecting hole 65 and the axis of the extrusion rod 51 is the same as the distance between the water inlet 42 and the axis of the opening and closing plate 61, in the rotating process of the opening and closing plate 61, when the water inlet connecting hole 65 is aligned with the water inlet 42, the ink inlet connecting hole 66 is aligned with the ink outlet 46, and water inlet and ink inlet can be synchronously realized.

The stirring assembly 7 is arranged in the mixing channel 45, the stirring assembly 7 comprises a stirring shaft 71 which is rotatably connected in the mixing channel 45, the stirring shaft 71 is coaxial with the extrusion rod 51 and is in transmission connection through a transmission assembly 8, and a helical blade 72 is fixed on the stirring shaft 71. The transmission assembly 8 comprises a transmission case 81, a first gear 82 and a fourth gear 85 are rotatably connected in the transmission case 81, the axes of the first gear 82 and the fourth gear 85 are on the same axis, a second gear 83 meshed with the first gear 82 is rotatably connected in the transmission case 81, a third gear 84 is coaxially and fixedly connected to the second gear 83, and the third gear 84 is meshed with the fourth gear 85. The fourth gear 85 is coaxially connected with the stirring shaft 71, the first gear 82 is coaxially connected with the extrusion rod 51, the diameter ratio of the first gear 82 to the second gear 83 is 4.

The detection mechanism comprises a camera and a bulb arranged on the camera, and when the underwater light is insufficient, the bulb can be powered on, so that the camera can better observe the flow direction of the tracer.

The implementation principle of the underwater leakage tracing and detecting equipment carried on the ROV is as follows: when the tracer is sprayed out, the second motor 62 is connected with an external power supply, the fifth gear 63 is driven to rotate, the opening and closing plate 61 is driven to rotate through the cooperation of the fifth gear 63 and the gear ring 64, the water inlet connecting hole 65 is aligned with the water inlet 42, the ink inlet connecting hole 66 is aligned with the ink outlet 46, then the first motor 53 is connected with a power supply, the first motor 53 drives the extrusion rod 51 to rotate, the extrusion plate 52 is driven to slide through the thread matching of the extrusion rod 51 and the extrusion plate 52, water and the tracer enter the mixing channel 45, the extrusion rod 51 can drive the stirring shaft 71 to rotate through the transmission assembly 8 in the rotating process, the spiral blade 72 is driven to rotate, the liquid in the mixing channel 45 is stirred, and finally the mixed liquid is discharged from the water outlet 43.

The application also provides an underwater leakage detection method, which comprises the following steps:

s2, filling a tracer into the ink storage box;

s3, transporting the traction mechanism 2 and the travelling mechanism 3 to a dam of the dam to be detected, and using the traction mechanism 2 to pull the travelling mechanism 3 to enable the travelling mechanism 3 to move downwards along the surface of the dam to be below the liquid level of the reservoir;

s4, after the travelling mechanism 3 moves to a first observation area, opening the water inlet 42 and the ink outlet 46 through the opening and closing assembly 6, so that the tracer and water enter the mixing channel 45 to be mixed, and then are discharged from the water outlet;

and S5, starting a detection mechanism, monitoring through a camera, tracking and recording the moving path of the tracer, wherein the process is determined according to the actual situation and is about 0.5-1 hour.

S6, after the observation of the first observation area is finished, the opening and closing assembly 6 closes the water inlet 42 and the ink outlet 46, the traction mechanism 2 is used for drawing the travelling mechanism 3, the travelling mechanism 3 is made to move to the next observation area, and then the steps S4 to S6 are repeated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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

1. An underwater leakage tracing and detecting device carried on an ROV is characterized in that: the device comprises a travelling mechanism (3), wherein a tracing mechanism (4) and a detection mechanism are arranged on the travelling mechanism (3), the device also comprises a traction mechanism (2) for drawing the travelling mechanism (3), the tracing mechanism (4) comprises a shell (41) and an ink storage chamber (44) arranged in the shell (41), a mixing channel (45) is arranged in the shell (41), the ink storage chamber (44) is provided with an ink outlet (46) communicated with the mixing channel (45), the shell (41) is provided with a water inlet (42) and a water outlet (43) communicated with the mixing channel (45), a stirring assembly (7) is arranged in the mixing channel (45), and an opening and closing assembly (6) for opening and closing the water inlet (42) and the ink outlet (46) is arranged in the shell (41);

the opening and closing assembly (6) comprises an opening and closing plate (61) rotatably connected in the shell (41) and a driving piece for driving the opening and closing plate (61) to rotate, the opening and closing plate (61) is tightly attached to the outer wall of the ink storage chamber (44), a water inlet connecting hole (65) and an ink inlet connecting hole (66) which penetrate through the opening and closing plate (61) are formed in the opening and closing plate (61), the distance between the ink inlet connecting hole (66) and the axis of the opening and closing plate (61) is the same as the distance between the ink outlet (46) and the axis of the opening and closing plate (61), the distance between the water inlet connecting hole (65) and the axis of the extrusion rod (51) is the same as the distance between the water inlet (42) and the axis of the opening and closing plate (61), and when the water inlet connecting hole (65) is aligned with the water inlet (42) in the rotating process of the opening and closing plate (61), the ink inlet connecting hole (66) is aligned with the ink outlet (46);

the driving piece comprises a second motor (62) fixed in the shell (41), the second motor (62) is a stepping motor, a fifth gear (63) is fixed on the second motor (62), and a gear ring (64) meshed with the fifth gear (63) is coaxially fixed on the opening and closing plate (61).

2. The apparatus of claim 1, wherein the apparatus comprises: be provided with extrusion subassembly (5) in storing up ink chamber (44), extrude subassembly (5) including rotate the extrusion pole (51) of connection in storing up ink chamber (44), threaded connection has extrusion plate (52) on extrusion pole (51), extrusion plate (52) are separated storing up ink chamber (44) for two spaces that do not communicate, be provided with on the inner wall of storing up ink chamber (44) and order about extrusion pole (51) rotatory first motor (53).

3. The apparatus of claim 2, wherein the apparatus comprises: stirring subassembly (7) including rotating (mixing) shaft (71) of connecting in mixing channel (45), (mixing) shaft (71) with extrusion pole (51) are coaxial, be fixed with helical blade (72) on (mixing) shaft (71), be provided with drive assembly (8) of transmission connection extrusion pole (51) and (mixing) shaft (71) in casing (41).

4. The apparatus of claim 3, wherein the apparatus comprises: drive assembly (8) include transmission case (81), transmission case (81) internal rotation is connected with and extrudes first gear (82) of pole (51) coaxial coupling, transmission case (81) internal rotation is connected with second gear (83) with first gear (82) meshing, coaxial coupling has third gear (84) on second gear (83), be provided with fourth gear (85) with third gear (84) meshing in transmission case (81), fourth gear (85) with (mixing) shaft (71) coaxial coupling, first gear (82) diameter is greater than the diameter of second gear (83), third gear (84) diameter is greater than fourth gear (85) diameter.

5. The apparatus of claim 1, wherein the apparatus comprises: the walking mechanism (3) comprises a base (32), universal rollers (31) are arranged on the base (32), and the shell (41) is fixed on the base (32).

6. The apparatus of claim 1, wherein the apparatus comprises: the traction mechanism (2) comprises a tractor (21) arranged on the ground, a traction rope (1) is arranged on the tractor (21), and the traction rope (1) is connected with the traveling mechanism (3).

7. An underwater leak detection method is characterized in that: use of an ROV-mounted underwater leak tracing and detection apparatus as claimed in any one of claims 1 to 6, comprising the steps of:

s2, filling a tracer into the ink storage chamber (44);

s3, using the traction mechanism (2) to pull the travelling mechanism (3) to enable the travelling mechanism (3) to move downwards along the surface of the dam to be below the liquid level of the reservoir;

s4, after the travelling mechanism (3) moves to an observation area, the water inlet (42) and the ink outlet (46) are opened through the opening and closing assembly (6), so that the tracer and water enter the mixing channel (45) to be mixed, and then are discharged from the water outlet;