CN111811748B - Comprehensive detection device and detection method for leakage of reservoir hydropower station - Google Patents
Comprehensive detection device and detection method for leakage of reservoir hydropower station Download PDFInfo
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- CN111811748B CN111811748B CN201910288694.6A CN201910288694A CN111811748B CN 111811748 B CN111811748 B CN 111811748B CN 201910288694 A CN201910288694 A CN 201910288694A CN 111811748 B CN111811748 B CN 111811748B
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- 238000001514 detection method Methods 0.000 title claims abstract description 71
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- 239000000700 radioactive tracer Substances 0.000 claims abstract description 101
- 239000000523 sample Substances 0.000 claims abstract description 29
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- 238000000034 method Methods 0.000 claims description 29
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- 230000008569 process Effects 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract description 4
- 230000009012 visual motion Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 21
- 239000003795 chemical substances by application Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 6
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- 238000010998 test method Methods 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a comprehensive detection device for leakage of a reservoir hydropower station and a detection method, wherein the comprehensive detection device comprises a host and a probe, the surface of the probe is provided with a shell, a tracer controller, a tracer memory, a tracer release device and an image acquisition device are sequentially arranged in the shell, the device forms a visual motion track along with the flow of a water body by controlling the release of a liquid tracer into the water body, and records and stores the motion track of the tracer by a high-definition camera system, so that the analysis and research of the flow characteristics of the water body under various states are facilitated, the leakage position, the leakage point, the leakage direction and the leakage degree can be accurately and intuitively determined, and even the motion rule and trend of each point of the water body can be researched by establishing a numerical simulation model; the comprehensive detection method for the leakage of the reservoir water station ensures that the leakage detection is more accurate and visual; the detection device can realize leakage detection in various environments such as clear water, muddy water and the like, is not influenced by water depth, and is accurate in detection.
Description
Technical Field
The invention relates to a reservoir hydropower station leakage detection device and a detection method, in particular to a reservoir hydropower station leakage comprehensive detection device and a detection method, and belongs to the field of reservoir and hydropower station leakage detection.
Background
At present, the traditional methods for detecting leakage of reservoirs and hydropower stations mainly comprise a tracing method, a drilling water injection (or pressurized water) test method, a flow rate test method, a sonar method and other geophysical prospecting methods, however, under the condition that the water flow speed is not high or the leakage points are scattered and the seepage of a single leakage point is small, the detection method cannot detect accurately and cannot intuitively observe the leakage state due to limited detection precision.
The tracing method comprises the following steps: the tracer is put in the upstream side of the part to be checked (in the reservoir area or in the inspection hole), and whether the tracer is present or not is observed in the part which is likely to leak (the water outlet point or the monitoring hole), so that the leaking part is judged, and the seepage speed is estimated. The method can only achieve rough judgment, has poor accuracy, complex process and extremely low detection efficiency.
Drilling water injection (or pressure water) test method: the permeability coefficient of the test section is calculated by injecting (or pressing in) water into the test hole to observe the amount of leaking water. The detection method is carried out in a segmented manner, the test is generally carried out in 5m segments, the measured permeability coefficient is the average value of the test segment, and is not the leakage quantity and the flow velocity of the real leakage point, the detection accuracy is poor, and the leakage point and the leakage flow direction cannot be accurately judged.
Flow rate test method: at present, two flow rate testing methods exist, one is to release solvent in a testing hole, continuously detect the concentration change of the solvent through an instrument, calculate a flow rate value again, have low detection precision and larger error, and cannot judge the flow direction. The other method is that the instrument is used for directly capturing the motion trail of particles in the water body, then the software is used for calculating the motion speed of the particles, the horizontal detection precision is higher, but the vertical flow condition cannot be judged, and the judgment error of the flow direction is larger. The detection process is simple, the operation is convenient, and the efficiency is relatively high.
Sound method: the water flow velocity field is measured by utilizing the seismoelectric theory and the excellent propagation characteristic of sound waves in water. The sonar detector is used for measuring the propagation of sound waves in a seepage field, the propagation speed of sound waves in the forward flow direction can be increased, the propagation speed of sound waves in the backward flow direction can be reduced, and different propagation times exist in the same propagation distance. And establishing a flow velocity equation of water flow particles in the continuous seepage field according to the space-time distribution of the measurement data, and further obtaining the flow velocity value of the detection point. The method can realize accurate detection in a wide water area environment, and is often influenced by the non-uniformity of surrounding media in drilling, so that the detection accuracy can be greatly reduced, the seepage direction can not be judged, and the method is not intuitive.
Other geophysical prospecting methods: the method comprises an electromagnetic method, a geological radar, an electric method and the like, rough judgment can be realized in the aspects of shallow layer detection and large-scale leakage, accurate detection cannot be realized due to serious interference influence of surrounding medium properties, detection accuracy is lower along with increase of detection depth, and the method is only macroscopic analysis judgment and sometimes has large error.
With the application of underwater robots and in-hole video equipment, the detection of leakage of reservoirs and hydropower stations is facilitated, but under the conditions that water is clear or turbid and the flow rate is not large, the underwater robots and the in-hole video equipment cannot accurately judge the flow direction and the flow rate of the water, even if leakage points exist, accurate leakage positions are difficult to directly observe through the underwater robots and the in-hole video equipment or other methods, and even if ascending or descending water flows exist in a detection borehole, the camera instrument can capture the movement track of impurities, and because the density of the impurities is uncertain, the movement speed of the water flow cannot be judged according to the situation, and the movement direction of the water flow cannot be judged.
Therefore, in order to more accurately determine the leaking position, determine the leaking degree, and more intuitively observe the leaking state, it is highly desirable to develop a device and a comprehensive detection method capable of recording and observing the subtle phenomena such as water flow state in a water body such as in a borehole and upstream of a reservoir dam.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the existing problems and providing a comprehensive detection device and a detection method for leakage of a reservoir hydropower station.
In order to solve the technical problems, the invention provides the following technical scheme:
The invention provides a comprehensive leakage inspection device for a reservoir hydropower station, which comprises a host and a probe, wherein the surface of the probe is provided with a shell, and a tracer controller, a tracer memory, a tracer release device and an image acquisition device are sequentially arranged in the shell; the tracer storage comprises a cylinder body, a piston, a feed inlet, a sealing screw, a connecting rod and a sealing ring, wherein the piston is arranged in the cylinder body, the connecting rod is arranged at the right end of the piston, the feed inlet is arranged at the left end of the cylinder body, and the sealing screw is arranged at the top end of the feed inlet; the tracer release device comprises an electromagnetic valve, a hose, a water outlet pipe, a hose, a quick-connection plug, a through hole, a porous medium and a check valve, wherein one end of the electromagnetic valve is connected with the hose, one end of the hose is connected with the water outlet pipe, the water outlet pipe and the hose are connected in an inserting way through the quick-connection plug, the through hole is arranged at the tail end of the hose, and the porous medium is arranged outside the through hole; the image acquisition device comprises an integrated circuit board, a high-definition camera and LED lamps, wherein the high-definition camera is arranged at the left end of the integrated circuit board, the LED lamps are arranged around the high-definition camera, the LED lamps are provided with four groups of lamp beads, and one group of lamp beads is a purple light lamp bead.
As a preferable technical scheme of the invention, the tracer controller is made of an electric hydraulic rod, the electric hydraulic rod is provided with an extending end, the tracer storage and the electric hydraulic rod are welded and fixed through the connecting rod and the extending end, and the contact surface of the connecting rod and the cylinder body is provided with the sealing ring.
As a preferable technical scheme of the invention, the left end of the cylinder body is provided with a discharge hole, and the left end of the discharge hole is connected with the right end of the electromagnetic valve.
As a preferable technical scheme of the invention, the high-definition camera and the LED lamp are electrically connected with the integrated circuit board.
As a preferable technical scheme of the invention, the shell comprises a first shell, a second shell, a third shell, transparent glass and a fixing ring, wherein the first shell, the second shell and the third shell are fixedly connected through the connecting ring, the left end of the third shell forms a sealing shell through the transparent glass and the fixing ring, and a sealing plate is further arranged between the second shell and the third shell.
As a preferable technical scheme of the invention, the transparent glass and the third shell are fixed through the fixing ring, and the inner wall of the fixing ring is provided with a thread buckle.
As a preferable technical scheme of the invention, the tail end of the water outlet pipe is also provided with a check valve.
As a preferable technical scheme of the invention, the electric hydraulic rod, the electromagnetic valve, the integrated circuit board and the host are all electrically connected through cables.
A comprehensive detection method for leakage of a dam face of a reservoir comprises the following steps:
Firstly, placing a probe in a water area corresponding to a suspected seepage area of a dam, carrying out omnibearing observation and image recording along the dam face, checking various crack and pore characteristics, and primarily judging possible seepage positions;
step two, releasing the tracer to the area, close to the crack or the pore, of the possible leakage part, observing and recording the movement track characteristics of the tracer, and accurately judging the key leakage part and the seepage direction;
Thirdly, further analyzing the seepage degree of the dam body through recorded water flow state characteristics of the upstream seepage part of the dam surface, density, size and the like of pores and cracks;
marking key leakage positions so as to accurately find the leakage positions in the anti-seepage treatment construction;
and fifthly, during or after the anti-seepage treatment process, water flow state characteristics of the seepage part are observed again, and the anti-seepage treatment effect is analyzed and evaluated.
The comprehensive detection method for the leakage in the reservoir dam body further comprises the following steps: step one, forming holes on the corresponding parts of the suspected seepage areas of the dams by a drilling machine; step two, the detection holes with possible holes collapse are placed into the flower pipe for wall protection;
Thirdly, lowering a probe in the drilled hole, carrying out omnibearing observation and video recording on the hole, checking various cracks, hole gap characteristics and water flow state characteristics, and preliminarily judging possible seepage positions and seepage directions;
step four, releasing the tracer at fixed points on the possible leakage positions, and further observing and recording the movement track characteristics of the tracer;
Fifthly, comparing and analyzing the water flow state characteristics of all parts, and analyzing and judging the accurate leakage parts, leakage points, leakage direction and leakage degree;
and step six, during or after the anti-seepage treatment process, water flow state characteristics of the seepage part are observed again, and the anti-seepage treatment effect is analyzed and evaluated.
The beneficial effects achieved by the invention are as follows: the comprehensive detection device for reservoir hydropower station leakage enters a water body through controlling and releasing a liquid tracer, forms a visual movement track along with the flow of the water body, and records the movement track through a high-definition camera system
The movement track of the tracer is stored, so that the flow characteristics of the water body under various states can be analyzed and researched conveniently, the leakage position, the leakage point, the seepage direction and the leakage degree can be accurately and intuitively determined, and even the movement rule and trend of each point of the water body can be researched by establishing a numerical simulation model; the anti-seepage treatment effect can be directly compared and assessed in the anti-seepage treatment process; the comprehensive detection method for the leakage of the reservoir water station enables the leakage detection to be more accurate and visual. The detection device can realize leakage detection in various environments such as clear water, muddy water and the like, is not influenced by water depth, and is accurate in detection.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the left end of the third housing of the present invention; FIG. 3 is a schematic view of the internal structure of a third housing of the present invention; FIG. 4 is a schematic view of the left end of the second housing of the present invention; fig. 5 is a schematic view of the internal structure of the second housing of the present invention. Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples
As shown in fig. 1-5, the invention provides a comprehensive leakage inspection device for a reservoir hydropower station, which comprises a host machine 1 and a probe 2, wherein a shell 8 is arranged on the surface of the probe 2, and a tracer controller 4, a tracer storage 3, a tracer release device 5 and an image acquisition device 6 are sequentially arranged in the shell 8; the tracer reservoir 3 comprises a cylinder 31, a piston 32 and a feed inlet
33. The sealing screw 34, the connecting rod 35 and the sealing ring 36 are arranged in the cylinder body 31, the connecting rod 35 is arranged at the right end of the piston 32, the feeding hole 33 is arranged at the left end of the cylinder body 31, and the sealing screw 34 is arranged at the top end of the feeding hole 33; the tracer release device 5 comprises an electromagnetic valve 51, a hose 52, a water outlet pipe 53, a rubber tube 54, a quick-connection plug 55, a through hole 56,
The porous medium 57 and the check valve 58, one end of the electromagnetic valve 51 is connected with the hose 52, one end of the hose 52 is connected with the water outlet pipe 53, the water outlet pipe 53 is spliced with the rubber pipe 54 through the quick-connection plug 55, the tail end of the rubber pipe 54 is provided with a through hole 56, and the porous medium 57 is arranged outside the through hole 56; the integrated circuit board 61, the high-definition camera 62 and the LED lamp 63 are arranged at the left end of the integrated circuit board 61, the LED lamp 63 is arranged around the high-definition camera 62, the LED lamp 63 is provided with four groups of lamp beads, one group of lamp beads is purple light lamp beads, the comprehensive detection device for reservoir hydropower station leakage enters a water body through controlling and releasing a liquid tracer, a visible movement track is formed along with the movement of the water body, the movement track of the tracer is recorded and stored through a high-definition camera system, the analysis and the research of the flow characteristics of the water body under various states are facilitated, the leakage position, the leakage point, the leakage direction and the leakage degree can be accurately and intuitively determined, and even the movement rule and trend of each point of the water body can be researched by establishing a numerical simulation model; can realize direct comparison and assessment in the process of impermeable treatment
An anti-seepage treatment effect; the comprehensive detection method for reservoir leakage enables leakage detection to be more accurate and visual. The detection device can realize leakage detection in various environments such as clear water, muddy water and the like, is not influenced by water depth, and is accurate in detection.
The tracer controller 4 is made of an electric hydraulic rod, the electric hydraulic rod is provided with an extending end, the tracer storage 3 and the electric hydraulic rod are welded and fixed through the connecting rod 35 and the extending end, and the welding and fixing ensure the connection strength of the connecting rod 35 and the extending end of the electric hydraulic rod, so that the tracer controller 4 can normally perform the jacking operation on the connecting rod 35; the sealing ring 36 is arranged on the contact surface of the connecting rod 35 and the cylinder body 31, and the sealing ring 36 can seal the contact surface of the connecting rod 35 and the cylinder body 31, so that the tightness of the cylinder body 31 is ensured.
The left end of the cylinder body 31 is provided with a discharge hole, the left end of the discharge hole is communicated with the right end of the electromagnetic valve 51, and the cylinder body 31 is communicated with the electromagnetic valve 51, so that the comprehensive leakage checking device for the reservoir hydropower station can complete all control on the electromagnetic valve 51 in the probe 2 through the host machine 1, and is convenient for a user to operate.
High definition digtal camera 62 and LED lamp 63 all with integrated circuit board 61 electric connection, high definition digtal camera 62 can shoot the tracer flow direction under water down, and LED lamp 63 can illuminate fluid under water for high definition digtal camera 62 is convenient for shoot, and the signal after the shooting passes through dust collecting circuit board 61 and passes through connecting wire 7 with the signal and conveys to host computer 1, and the inside tracer flow direction of reservoir hydropower station is observed to the operating personnel of being convenient for to deduce the inside seepage position of reservoir hydropower station.
The shell 8 comprises a first shell 81, a second shell 82, a third shell 83, transparent glass 84 and a fixed ring 85, wherein the first shell 81, the second shell 82 and the third shell 83 are fixedly connected through the connecting ring 86, a sealing plate 87 is further arranged between the second shell 82 and the third shell 83, the left end of the third shell 83 forms a sealing shell through the transparent glass 84 and the fixed ring 85, and the connecting ring 86 facilitates the disassembly of the first shell 81, the second shell 82 and the third shell 83, so that the disassembly, the maintenance and the maintenance of the internal devices of the shell 8 are facilitated; the sealing plate 87 separates the integrated circuit board 61 from the tracer reservoir 3 and the tracer control apparatus 4, further protecting the front-end electronics area from water and tracer entering the front-end area.
Transparent glass 84 passes through solid fixed ring 85 with third casing 83 to be fixed, gu fixed ring 85 inner wall is equipped with the thread and buckles, gu fixed ring 85 and third casing 83 pass through thread and detain threaded connection for convenient to detach between solid fixed ring 85 and the third casing 83, thereby the user of being convenient for dismantles or assembles parts such as maintenance high definition digtal camera 62, LED lamp 63 and integrated circuit board 61.
The tail end of the water outlet pipe 53 is also provided with a check valve 58, and the check valve 58 can prevent the tracer from flowing back into the cylinder 31 due to the reduction of the internal pressure after being pressed out by the tracer controller 4, so that the water flow of the reservoir hydropower station can not flow back into the cylinder 31 due to the reduction of the internal pressure of the probe 2, and the detection precision and the service life of the whole probe 2 are ensured.
The electric hydraulic rod, the electromagnetic valve 51, the integrated circuit board 61 and the host 1 are electrically connected through the cable 7, the host 1 comprises a control console and a display screen, the control console is used for controlling a probe light source, a lens, a tracer controller, depth recording, a power switch, the display screen, image data processing, storage, recording, editing and the like, and the display screen is used for displaying the probe in real time
The collected images, the memory content, the related image editing characteristics and other electrical connection enable the comprehensive leakage inspection device for the reservoir hydropower station to be convenient to operate, the degree of automation is guaranteed, users can operate the comprehensive leakage inspection device conveniently, and labor intensity of the users is reduced.
The device is a comprehensive leakage inspection device for a reservoir hydropower station, and when the device is needed to be used;
Under the condition that the water body of the reservoir hydropower station is clear, a user needs to install the LED lamp 63 light source installed in the third shell 83 first, so that the three groups of lamp beads except for the ultraviolet lamp beads can emit light, after the user completes the installation of the LED lamp 63, the user opens the feed inlet 33 through the sealing screw 34, the user puts the tracer into the cylinder 31 through the feed inlet 33, then seals the feed inlet 33 through the sealing screw 34, after the tracer injection of the tracer storage 3 is completed, the user puts the probe 2 into a designated place to concentrate the leakage part, after the designated place is reached, the user is electrically connected with the connecting wire 7 of the probe 2 through the host 1, so that the host 1 controls the probe 2, the user sequentially opens the tracer controller 4, the electromagnetic valve 51, the high-definition camera 62 and the LED lamp 63 through the surface controller of the host 1, the tracer controller 4 is made of an electric hydraulic rod, the extending end of the electric hydraulic rod can generate leftward thrust to the cylinder 35, the piston 32 is pushed by the connecting rod 35 to move leftward in the cylinder 31,
The tracer stored in the cylinder 31 is pushed out of the body by the piston 32, the sealing ring 36 can seal the contact surface between the connecting rod 35 and the cylinder 31 to ensure the tightness of the cylinder 31, the tracer fluid flows to the hose 52 through the electromagnetic valve 51, the hose 52 divides the tracer fluid into two flows to the water outlet pipe 53 respectively, the tracer fluid in the water outlet pipe 53 flows to the rubber pipe 54 through the pipeline, the left end through hole 56 of the rubber pipe 54 enables the tracer fluid to be released, the released tracer is rapidly dispersed through the porous medium 57, the tail end of the water outlet pipe 53 is also provided with the check valve 58 to prevent the internal pressure of the tracer fluid from being reduced after being pressed out to enable the water to be measured to flow back into the cylinder 31, the tracer fluid is rapidly dispersed in the water to be measured, and the water flow at the leakage crack generates a flow velocity, so that the tracer fluid quickly flows to the leakage crack, the high-definition camera 62 shoots and records the tracer fluid in the flowing process of the water body to be detected, the LED lamp 63 can illuminate the deep water, the high-definition camera 62 is convenient for shooting and recording the tracer fluid, the image shot by the high-definition camera 62 is integrated through the integrated circuit board 61, the integrated signal is transmitted to the host 1 through the connecting wire 7, the flow direction of the tracer fluid can be observed through the display screen on the surface of the host 1 by using a person, thereby judging the connectivity of the leakage crack, the surface of the probe 2 is provided with the shell 8, the tracer controller 4, the tracer memory 3, the tracer releasing device 5 and the image acquisition device 6 are all arranged in the shell 8 to fully protect the electrical elements in the probe 2, the service life of the device is ensured, the shell 8 comprises a first shell 81, a second shell 82 and a third shell 83, the first shell 81, the second shell 82 and the third shell 83 are fixedly connected through a connecting ring 86, a sealing plate 87 is further arranged between the second shell 82 and the third shell 83, the left end of the third shell 83 forms a sealing shell through transparent glass 84 and the fixing ring 85, and the connecting ring 86 facilitates the disassembly of the first shell 81, the second shell 82 and the third shell 83, so that the internal devices of the shell 8 are convenient to disassemble, repair and maintain; the sealing plate 87 separates the integrated circuit board 61 from the tracer reservoir 3 and the tracer control apparatus 4, further protects the front-end electronics area from water and tracer entering the third housing
83. Inside, the integrated circuit board 61, the high-definition camera 62 and the LED lamp 63 inside the third shell 83 are guaranteed, so that the service lives of the integrated circuit board 61, the high-definition camera 62 and the LED lamp 63 inside the third shell 83 are guaranteed, and the service life of the whole detection device is guaranteed.
Under the condition that the water body in the reservoir hydropower station is turbid, a user needs to replace the light source beads of the LED lamp 63 arranged in the third shell 83, so that one group of the ultraviolet lamp beads of the LED lamp 63 generate ultraviolet light, because the ultraviolet light has shorter wavelength and is easy to generate diffraction, the penetrating power in water is relatively stronger, and the fluorescent agent (fluorescent agent) is matched with the ultraviolet light to generate stronger fluorescent reflection under the irradiation of ultraviolet light, so that the ultraviolet light can be observed in muddy water farther, after the replacement of the light source of the LED lamp 63 is completed, the user opens the feed inlet 33 through the sealing screw 34, the user puts the tracer (fluorescent agent) into the cylinder 31 through the feed inlet 33, Then the feed port 33 is sealed by a sealing screw 34, after the tracer (fluorescent agent) of the tracer storage 3 is injected, a user puts the probe 2 into a concentrated leakage position of a designated place, after the tracer reaches the designated place, the user is electrically connected with the connecting wire 7 of the probe 2 through the host 1, the host 1 controls the probe 2, the user sequentially opens the tracer controller 4, the electromagnetic valve 51, the high-definition camera 62 and the LED lamp 63 through the surface controller of the host 1, the tracer controller 4 is made of an electric hydraulic rod, The extending end of the electric hydraulic rod can generate leftward thrust to the connecting rod 35, the connecting rod 35 pushes the piston 32 to move leftward in the cylinder body 31, tracer (fluorescent agent) fluid stored in the cylinder body 31 is pushed out of the body by the piston 32, the sealing ring 36 can seal the contact surface of the connecting rod 35 and the cylinder body 31 to ensure the tightness of the cylinder body 31, the tracer (fluorescent agent) fluid flows to the hose 52 through the electromagnetic valve 51, the tracer (fluorescent agent) of the hose 52 is divided into two flows to the water outlet pipe 53 respectively, the tracer (fluorescent agent) fluid in the water outlet pipe 53 flows to the rubber pipe 54 through a pipeline, The through hole 56 at the left end of the rubber tube 54 releases the tracer (fluorescent agent) fluid, the released tracer (fluorescent agent) fluid is rapidly dispersed through the porous medium 57, the tail end of the water outlet tube 53 is also provided with a check valve 58, the measured water body is prevented from flowing back into the cylinder 31 due to the reduction of the internal pressure after the tracer (fluorescent agent) fluid is pressed out, the tracer (fluorescent agent) fluid is rapidly dispersed in the water flow, the tracer (fluorescent agent) fluid rapidly flows to the leakage crack due to the flow velocity of the water flow at the leakage crack, the high-definition camera 62 records the tracer (fluorescent agent) fluid in the flowing process of the measured water body, the LED lamp 63 can illuminate the deep water, so that the high-definition camera 62 can shoot and record the deep water conveniently, the image shot and recorded by the high-definition camera 62 is integrated through the integrated circuit board 61, the integrated signal is transmitted to the host 1 through the connecting wire 7, and a person can observe the flow direction of tracer (fluorescent agent) fluid through the surface display screen of the host 1, so that the connectivity of a leakage crack is judged; The surface of the probe 2 is provided with a shell 8, the tracer controller 4, the tracer storage 3, the tracer release device 5 and the image acquisition device 6 are all arranged in the shell 8,
The electrical components inside the probe 2 are sufficiently protected to ensure the service life thereof, while the housing 8 comprises a first
A casing 81, a second casing 82 and a third casing 83, wherein the first casing 81, the second casing 82 and the third casing 83 are fixedly connected through a connecting ring 86, a sealing plate 87 is further arranged between the second casing 82 and the third casing 83, the left end of the third casing 83 forms a sealing casing through transparent glass 84 and the fixing ring 85, and the connecting ring 86 enables the first casing
The housing 81, the second housing 82 and the third housing 83 are easy to disassemble, thereby facilitating disassembly, repair and maintenance of the devices inside the housing 8; the sealing plate 87 separates the integrated circuit board 61 from the tracer memory 3 and the tracer control device 4, further protects the front-end electronic component area, prevents water and tracer (fluorescent agent) from entering the inside of the third shell 83, ensures the integrated circuit board 61, the high-definition camera 62 and the LED lamp 63 inside the third shell 83, ensures the service lives of the integrated circuit board 61, the high-definition camera 62 and the LED lamp 63 inside the third shell 83, and ensures the service life of the whole detection device.
A comprehensive detection method for leakage of a dam face of a reservoir comprises the following steps:
Firstly, placing a probe in a water area corresponding to a suspected seepage area of a dam, carrying out omnibearing observation and image recording along the dam face, checking various crack and pore characteristics, and primarily judging possible seepage positions;
step two, releasing the tracer to the area, close to the crack or the pore, of the possible leakage part, observing and recording the movement track characteristics of the tracer, and accurately judging the key leakage part and the seepage direction;
Thirdly, further analyzing the seepage degree of the dam body through recorded water flow state characteristics of the upstream seepage part of the dam surface, density, size and the like of pores and cracks;
marking key leakage positions so as to accurately find the leakage positions in the anti-seepage treatment construction;
and fifthly, during or after the anti-seepage treatment process, water flow state characteristics of the seepage part are observed again, and the anti-seepage treatment effect is analyzed and evaluated.
The comprehensive detection method for the leakage in the reservoir dam body further comprises the following steps: step one, forming holes on the corresponding parts of the suspected seepage areas of the dams by a drilling machine; step two, the detection holes with possible holes collapse are placed into the flower pipe for wall protection;
Thirdly, lowering a probe in the drilled hole, carrying out omnibearing observation and video recording on the hole, checking various cracks, hole gap characteristics and water flow state characteristics, and preliminarily judging possible seepage positions and seepage directions;
step four, releasing the tracer at fixed points on the possible leakage positions, and further observing and recording the movement track characteristics of the tracer;
Fifthly, comparing and analyzing the water flow state characteristics of all parts, and analyzing and judging the accurate leakage parts, leakage points, leakage direction and leakage degree;
and step six, during or after the anti-seepage treatment process, water flow state characteristics of the seepage part are observed again, and the anti-seepage treatment effect is analyzed and evaluated.
The comprehensive detection device for the leakage of the reservoir hydropower station can control the release of the liquid tracer into the water body, form a visual motion trail along with the flow of the water body, record and store the motion trail of the tracer through the high-definition camera system, is convenient for analyzing and researching the flow characteristics of the water body in various states, can accurately and intuitively determine the leakage position, the leakage point, the leakage direction and the leakage degree, and can even research the motion rule and trend of each point of the water body by establishing a numerical simulation model; the anti-seepage treatment effect can be directly compared and assessed in the anti-seepage treatment process; the comprehensive detection method for reservoir leakage
The leakage detection is more accurate and more visual. The detection device can realize leakage detection in various environments such as clear water, muddy water and the like, is not influenced by water depth, and is accurate in detection.
The comprehensive leakage inspection device for the reservoir hydropower station has a very wide application field, and can be used for various industries such as water conservancy, hydropower, ground ore, environmental protection, scientific research institutions, universities and the like; the main application is as follows: the flow state of the water body is monitored, the leakage positions and the leakage degrees of various water storage and delivery facilities are checked, and the flow velocity, the flow direction, the motion trend, the seepage or the diffusion range and the like of underground water and sewage with certain transparency are researched. The seepage conditions in the reservoir and the hydropower station dam body can be checked through the dam body drilling holes, and the seepage conditions of the surrounding dams at the positions such as the dam foundation, the two-bank dam abutment and the like are included; the device can be assembled on an underwater robot by properly improving front-end detection, can detect leakage conditions of reservoirs, hydropower station dams, various gates, large-scale water pipelines and various water storages, and can be used for researching water flow characteristics under different boundary conditions.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but it is to be understood that the present invention is not limited to the foregoing embodiment, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a reservoir hydropower station seepage comprehensive inspection device, includes host computer (1) and probe (2), its characterized in that, probe (2) surface is equipped with casing (8), casing (8) inside is equipped with tracer controller (4), tracer memory (3), tracer release (5) and image acquisition device (6) from right to left in proper order;
The tracer storage (3) comprises a cylinder body (31), a piston (32), a feed inlet (33), a sealing screw (34), a connecting rod (35) and a sealing ring (36), wherein the piston (32) is arranged in the cylinder body (31),
The right end of the piston (32) is provided with the connecting rod (35), the left end of the cylinder body (31) is provided with the feed inlet (33), and the top end of the feed inlet (33) is provided with the sealing screw (34);
The tracer release device (5) comprises an electromagnetic valve (51), a hose (52), a water outlet pipe (53), a rubber pipe (54), a quick-connection plug (55), a through hole (56), a porous medium (57) and a check valve (58), wherein one end of the electromagnetic valve (51) is connected with the hose (52), one end of the hose (52) is connected with the water outlet pipe (53),
The water outlet pipe (53) is spliced with the rubber pipe (54) through the quick-connection plug (55), the through hole (56) is formed in the tail end of the rubber pipe (54), and the porous medium (57) is arranged outside the through hole (56);
The image acquisition device (6) comprises an integrated circuit board (61), a high-definition camera (62) and an LED lamp
(63) The LED lamp (63) is arranged around the high-definition camera (62), and the LED lamp (63) is provided with four groups of lamp beads, wherein one group of lamp beads is purple light lamp beads;
the tracer controller (4) is made of an electric hydraulic rod, an extending end is arranged on the electric hydraulic rod, the tracer storage (3) and the electric hydraulic rod are welded and fixed through the connecting rod (35) and the extending end, and the sealing ring (36) is arranged on the contact surface of the connecting rod (35) and the cylinder body (31);
the left end of the cylinder body (31) is provided with a discharge hole, and the left end of the discharge hole is connected with the right end of the electromagnetic valve (51).
2. The comprehensive reservoir hydropower station leakage inspection device according to claim 1, wherein the high-definition camera (62) and the LED lamp (63) are electrically connected with the integrated circuit board (61).
3. The comprehensive reservoir hydropower station leakage inspection device according to claim 1, wherein the shell (8) comprises a first shell (81), a second shell (82), a third shell (83), transparent glass (84) and a fixing ring (85), wherein the first shell (81), the second shell (82) and the third shell (83) are fixedly connected through a connecting ring (86), the left end of the third shell (83) forms a sealing shell through the transparent glass (84) and the fixing ring (85), and a sealing plate (87) is further arranged between the second shell (82) and the third shell (83).
4. A reservoir hydropower station leakage comprehensive inspection device according to claim 3, wherein the device comprises
The transparent glass (84) and the third shell (83) are fixed through the fixing ring (85), and a thread buckle is arranged on the inner wall of the fixing ring (85).
5. The comprehensive reservoir hydropower station leakage inspection device according to claim 1, wherein the tail end of the water outlet pipe (53) is further provided with a check valve (58).
6. The comprehensive reservoir hydropower station leakage inspection device according to claim 1, wherein the electric hydraulic rod, the electromagnetic valve (51), the integrated circuit board (61) and the host (1) are electrically connected through a cable wire (7).
7. A comprehensive detection method for leakage of a reservoir hydropower station is characterized by comprising the following steps: a reservoir hydropower station leakage comprehensive inspection device based on any one of claims 1-6, comprising: comprehensive detection method for leakage of dam face of reservoir the comprehensive detection method for the leakage in the reservoir dam body comprises the following steps of;
the comprehensive detection method for the leakage of the dam face of the reservoir comprises the following steps:
Firstly, placing a probe in a water area corresponding to a suspected seepage area of a dam, carrying out omnibearing observation and image recording along the dam face, checking various crack and pore characteristics, and primarily judging possible seepage positions;
step two, releasing the tracer to the area, close to the crack or the pore, of the possible leakage part, observing and recording the movement track characteristics of the tracer, and accurately judging the key leakage part and the seepage direction;
Thirdly, further analyzing the seepage degree of the dam body through recorded water flow state characteristics of the upstream seepage part of the dam surface, density and size of pores and cracks;
marking key leakage positions so as to accurately find the leakage positions in the anti-seepage treatment construction;
Fifthly, during or after the anti-seepage treatment process, water flow state characteristics of the seepage part are observed again, and the anti-seepage treatment effect is analyzed and evaluated;
The comprehensive detection method for the leakage inside the reservoir dam body comprises the following steps:
step one, forming holes on the corresponding parts of the suspected seepage areas of the dams by a drilling machine;
Step two, the detection holes with possible holes collapse are placed into the flower pipe for wall protection;
Thirdly, lowering a probe in the drilled hole, carrying out omnibearing observation and video recording on the hole, checking various cracks, hole gap characteristics and water flow state characteristics, and preliminarily judging possible seepage positions and seepage directions;
step four, releasing the tracer at fixed points on the possible leakage positions, and further observing and recording the movement track characteristics of the tracer;
Fifthly, comparing and analyzing the water flow state characteristics of all parts, and analyzing and judging the accurate leakage parts, leakage points, leakage direction and leakage degree;
and step six, during or after the anti-seepage treatment process, water flow state characteristics of the seepage part are observed again, and the anti-seepage treatment effect is analyzed and evaluated.
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| CN113237610B (en) * | 2021-06-17 | 2025-05-16 | 嘉陵江亭子口水利水电开发有限公司 | Gate sealing status detection device |
| CN115875613B (en) * | 2021-09-28 | 2024-07-16 | 中核核电运行管理有限公司 | Leakage detection method for chemical tracer at leakage point of cooling water pipeline of power plant |
| CN115793090B (en) * | 2023-02-10 | 2023-05-05 | 肥城新查庄地质勘查有限公司 | Trace test method for checking borehole communication |
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