CN106052973B - Dike piping leaks intensity detecting device and its detection method - Google Patents
Dike piping leaks intensity detecting device and its detection method Download PDFInfo
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- CN106052973B CN106052973B CN201610594766.6A CN201610594766A CN106052973B CN 106052973 B CN106052973 B CN 106052973B CN 201610594766 A CN201610594766 A CN 201610594766A CN 106052973 B CN106052973 B CN 106052973B
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- G01M3/26—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
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Abstract
The present invention relates to piping, leakage detection field, disclose a kind of dike piping leakage intensity detecting device, including top column casing, lower section cone cylinder, swept resistance, floating ball, DC power supply, sensitive ammeter, adjustable bend pipe.Top column casing is connected with lower section cone cylinder by adjustable bend pipe, there is flowing water opening at the top of top column casing bottom and lower section cone cylinder, swept resistance is disposed on column casing side wall, the slide plate of swept resistance is connect with floating ball, swept resistance is connect by electric wire with signal device, signal device includes DC power supply and sensitive ammeter, and sensitive ammeter is for differentiating piping, leakage intensity.The invention also discloses the detection methods of above-mentioned apparatus.The present invention is based on bernoulli equations and buoyancy, utilize the resistance value that can change control swept resistance with the floating ball of water surface floating, and this variation is observed by sensitive ammeter, so as to quickly, nondestructively detect the piping of dykes and dams, leak intensity, invests low, structure and simply, convenient for engineering staff grasp use.
Description
Technical field
The present invention relates to a kind of dike pipings to leak intensity detecting device.The device of the invention is suitable for the dike of small reservoir
Dam piping and seepage intensity detection.
Background technique
Reservoir dam leakage, piping etc. are the major reasons for causing dykes and dams to burst, can to national economy, social stability and
Humorous, environment and ecology etc. cause serious loss.Therefore the water inlet position of dam leakage or piping how is quickly and accurately found out
It sets and intensity size is most important, piping, leakage detection method and its apparatus are also born therewith.
Existing piping, leakage detection device are and three kinds of manual patrol, geological drilling and geophysical exploration detection sides
Method is corresponding.Manual patrol does not need apparatus substantially, but manual patrol waste of manpower and is difficult to find hidden danger；Geology is bored
It is local that visiting, which has destructive and detection result,；Geophysical exploration result is more accurate, but detection device structure is complicated, at
This is higher, and general staff is difficult to grasp its application method.Existing piping, leakage detection device be unable to satisfy it is quick, lossless,
At low cost, structure is simple and grasps to use etc. convenient for engineering staff and requires.
Summary of the invention
The purpose of the present invention is to provide a kind of quick, lossless, at low cost, structures simply, makes convenient for engineering staff's grasp
Piping, leakage intensity detecting device and its detection method.
The first purpose of this invention is achieved through the following technical solutions, and dike piping leaks intensity detecting device,
Including top column casing, lower section cone cylinder, swept resistance, floating ball, signal device, adjustable bend pipe；
It is adjustable that the bottom of top column casing and the top of lower section cone cylinder have flowing water opening, top column casing and lower section cone cylinder to pass through
Section bend pipe is connected, and swept resistance is disposed on column casing side wall；
The slide plate of swept resistance is connect with floating ball, and floating ball is slided with the size for moving up and down changeable swept resistance of water level
Dynamic resistance is connected by electric wire with signal device, and signal device includes DC power supply and sensitive ammeter, and sensitive ammeter is used
In differentiation piping, leakage intensity.
Preferably, the top column casing is bolted with adjustable bend pipe；Lower section cone cylinder is bolted with adjustable bend pipe,
Adjustable bend pipe camber is adjustable.
Preferably, trunnion, trunnion band hole are arranged at the top of the top column casing, and trunnion is fixed by bolts to square column
On the outside of cylinder barrel.
Preferably, the side wall of the top column casing is bolted with swept resistance.
Preferably, the diameter of the top column casing is equal to 4 times of flowing water opening diameter, and the length of top column casing is equal to 8 times
Flowing water opening diameter, the upper bottom diameter of lower section cone cylinder is equal to flowing water opening diameter, and the bottom diameter of lower section cone cylinder is equal to 20 times
Flowing water opening diameter, the length of lower section cone cylinder is equal to 15 times of flowing water opening diameter, and flowing water of the diameter equal to 3 times of floating ball is opened
Mouth diameter, floating ball freely float up and down with the variation of water level, and bend pipe diameter is adjusted and is equal to the flowing water opening diameter.
Preferably, the adjustable bend pipe both ends are respectively equipped with fixed ring, the top column casing bottom plate and adjustable bend pipe
Upper end fixed ring is bolted；The fixed ring of lower section cone cylinder upper end setting is bolted with adjustable bend pipe lower end fixed ring.
The present invention includes top column casing, adjustable bend pipe, lower section cone cylinder, swept resistance, floating ball, signal device.
A second object of the present invention is to provide the sides detected using above-mentioned dike piping leakage intensity detecting device
Method is reached by the following method of operation:
It is vertical into the water to will test device, moves and is detected along dykes and dams side.In the case where reservoir is without draining,
Water in dykes and dams may be considered static, water velocity zero.Therefore, when detection device is moved along dam, pipe is such as encountered
It gushes and leaks, the water velocity of lower section cone cylinder bottom is zero, and the water level in the column casing of top is basically stable at a fixed value, floating ball
Substantially it will not move up and down, the size of resistance will not change, and the numerical value of the ammeter in signal device is basicly stable；When
When detection device encounters piping and leakage, the water velocity of lower section cone cylinder bottom is greater than zero, according to bernoulli equation:
It is definite value under same elevation, is constant, when water velocity increases, hydraulic pressure reduction is just met the requirements, the reduction of hydraulic pressure
Meaning that the depth of water in upper and lower cone cylinder reduces, i.e., the water surface elevation in the column casing of top reduces, so that floating ball moves down, floating ball
It moves down and drives the mobile size for changing resistance of the slide plate of swept resistance, the reading meeting of the sensitive ammeter in signal device
Apparent variation occurs, to detect piping, leakage water inlet and intensity size.
Compared with prior art, the invention has the following advantages: present invention top column casing and lower section cone cylinder are by can
It adjusts bend pipe and is bolted, flowing water opening is arranged at the bottom of top column casing and the top of lower section cone cylinder, and swept resistance passes through spiral shell
Pin device is fixed on the column casing side wall of top, and the slide plate of swept resistance is connect with floating ball, and floating ball can be with moving up and down for water level
Change the size of resistance, swept resistance is connect by electric wire with signal device, and signal device is by DC power supply and sensitive ammeter
Composition differentiates piping, leakage intensity by the reading size of sensitive ammeter.The diameter of the top column casing is equal to 4 times of flowing water
Opening diameter, the length of the top column casing are equal to 8 times of flowing water opening diameter, and the hole diameter of the lower section cone cylinder is equal to stream
Water opening diameter, the diameter macropores of the lower section cone cylinder are equal to 20 times of flowing water opening diameter, the length etc. of the lower section cone cylinder
In 15 times of flowing water opening diameter, the diameter of the floating ball is equal to 3 times of flowing water opening diameter, and the floating ball can be with water level
Change and freely float up and down, the adjustable bend pipe, which can according to need, to be angled.The present invention is based on bernoullis
Equation and buoyancy, using can with the floating ball of water surface floating change control swept resistance resistance value, and pass through sensitive ammeter
This variation is observed, so as to detect piping, the leakage intensity of dykes and dams.Present invention investment is low, structure is simple, is convenient for engineering people
Member, which grasps, to be used, and can detect piping in dykes and dams, the water inlet of leakage and intensity size, quickly, nondestructively so as to staff
Rationalization arranges rescue.
Detailed description of the invention
Fig. 1 is that dike piping of the present invention leaks intensity detecting device general structure schematic diagram；
Fig. 2 is the sectional view that dike piping of the present invention leaks intensity detecting device；
In figure, 1: top column casing；2: lower section cone cylinder；3: handle；4: bolt；5: trunnion；6: swept resistance；7: floating ball；8:
Bolt；9: bolt；10: electric wire；11: DC power supply；12: sensitive ammeter；13: signal device；14: bolt；15: bolt；16:
Bolt；17: adjustable bend pipe；18: bolt；19: bolt.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Dike piping leaks intensity detecting device, including top column casing 1, lower section cone cylinder 2, swept resistance 6, floating ball 7, direct current
Power supply 11, sensitive ammeter 12, adjustable bend pipe 17.
Top column casing 1 and lower section cone cylinder 2 are connected by bolt 4, bolt 15, bolt 18, bolt 19 and adjustable bend pipe 17
Together, swept resistance 6 is fixed on the side wall of top column casing 1 by bolt 8 and bolt 9, the cunning of floating ball 7 and swept resistance 6
Piece connection, swept resistance 6 are connect by electric wire 10 with signal device 13, and signal device 13 is by DC power supply 11 and sensitive ammeter
12 compositions, trunnion 5 are fixed on the top of top column casing 1 by bolt 14 and bolt 16, and handle 3 is connected on trunnion 5.The top
The diameter of column casing 1 is equal to 4 times of flowing water opening diameter, and the length of the top column casing 1 is equal to 8 times of flowing water opening diameter, institute
The hole diameter for stating lower section cone cylinder 2 is equal to flowing water opening diameter, and flowing water of the diameter macropores equal to 20 times of the lower section cone cylinder 2 is opened
Mouth diameter, the length of the lower section cone cylinder 2 are equal to 15 times of flowing water opening diameter, and the diameter of the floating ball 7 is equal to 3 times of flowing water
Opening diameter, the floating ball 7 can freely float up and down with the variation of water level.
The method of operation of the invention is as follows:
Adjusting adjustable bend pipe according to dykes and dams slope requirement first makes lower section cone cylinder mouth face dykes and dams slope surface, then will test
Device is vertical to be placed in water, and portable handle 3 is walked along dykes and dams side, or fixation is aboard ship parallel to the axis of dam vertically by top column casing
Direction is mobile, and when piping, leakage is encountered, cone cylinder 2 bottom water flow speed in lower section is zero, and the water level of top column casing 1 is one stable
Value, floating ball 7 will not occur it is big float up and down, the resistance value of swept resistance 6 is constant, the reading of the ammeter 12 in signal device 13
Base this without fluctuation.When detection device encounters piping, leakage, cone cylinder 2 bottom water flow speed in lower section is greater than zero, top column casing 1
Interior water level can reduce, and floating ball 7 is reduced with the water level in top column casing 1 and moved down, and the resistance value of swept resistance 6 becomes
Change, the reading of the ammeter 12 in signal device 13 can occur obviously to fluctuate, to detect the piping of dykes and dams, leakage intensity.
The present invention is based on bernoulli equations and buoyancy, control swept resistance using that can change with the floating ball of water surface floating
Resistance value, and this variation is observed by sensitive ammeter, so as to detect piping, the leakage intensity of dykes and dams.The present invention is thrown
It provides low, structure and simply, convenient for engineering staff grasps use, can quickly, nondestructively detect the water inlet of piping in dykes and dams, leakage
With intensity size.
Claims (5)
1. dike piping leaks intensity detecting device, which is characterized in that the detection device includes top column casing (1), lower section cone
Cylinder (2), swept resistance (6), floating ball (7), signal device (13), adjustable bend pipe (17)；
Flowing water opening, top column casing (1) and lower section cone cylinder (2) are arranged at the bottom of top column casing (1) and the top of lower section cone cylinder (2)
It is connected by adjustable bend pipe (17), swept resistance (6) is disposed on column casing (1) side wall；
The slide plate of swept resistance (6) is connect with floating ball (7), and floating ball (7) moves up and down changeable swept resistance (6) with water level
Size, swept resistance (6) are connected by electric wire (10) with signal device (13), and signal device includes DC power supply (11) and spirit
Quick ammeter (12), sensitive ammeter (12) is for differentiating piping, leakage intensity；
The diameter of the top column casing (1) is equal to 4 times of flowing water opening diameter, and the length of top column casing (1) is equal to 8 times of flowing water
Opening diameter, the upper bottom diameter of lower section cone cylinder (2) are equal to flowing water opening diameter, and the bottom diameter of lower section cone cylinder (2) is equal to 20 times
Flowing water opening diameter, the length of lower section cone cylinder (2) is equal to 15 times of flowing water opening diameter, and the diameter of floating ball (7) is equal to 3 times
Flowing water opening diameter, floating ball freely float up and down with the variation of water level, and adjustable bend pipe (17) diameter is equal to the flowing water and opens
Mouth diameter；
The method detected using dike piping leakage intensity detecting device:
It is vertical into the water to will test device, moves and is detected along dykes and dams side；
In the case where reservoir is without draining, the water in dykes and dams is regarded as static, water velocity zero；Therefore, it examines
When survey device is moved along dam, piping and leakage is such as encountered, the water velocity of lower section cone cylinder bottom is zero, the water in the column casing of top
Position is basically stable at a fixed value, and floating ball will not move up and down substantially, and the size of resistance will not change, signal device
In ammeter numerical value it is basicly stable；
When detection device encounters piping and leakage, the water velocity of lower section cone cylinder bottom is greater than zero, according to bernoulli equation:
Z is definite value under same elevation, and C is constant, and when water velocity v increases, hydraulic pressure P reduction is just met the requirements, the reduction of hydraulic pressure P
Meaning that the depth of water in upper and lower cone cylinder reduces, i.e., the water surface elevation in the column casing of top reduces, so that floating ball moves down, floating ball
It moves down and drives the mobile size for changing resistance of the slide plate of swept resistance, the reading meeting of the sensitive ammeter in signal device
Apparent variation occurs, to detect piping, leakage water inlet and intensity size.
2. dike piping according to claim 1 leaks intensity detecting device, which is characterized in that the top column casing (1)
It is bolted with adjustable bend pipe (17)；Lower section cone cylinder (2) is bolted with adjustable bend pipe (17), and it is curved that bend pipe (17) are adjusted
Degree is adjustable.
3. dike piping according to claim 1 leaks intensity detecting device, which is characterized in that the top column casing (1)
Top have trunnion (5), trunnion (5) band hole, and trunnion (5) be fixed by bolts to top column casing (1) barrel on the outside of.
4. dike piping according to claim 1 leaks intensity detecting device, which is characterized in that the top column casing (1)
Side wall be bolted with swept resistance (6).
5. dike piping according to claim 2 leaks intensity detecting device, which is characterized in that the adjustable bend pipe
(17) both ends are respectively equipped with fixed ring, and top column casing (1) bottom plate is bolted with adjustable bend pipe (17) upper end fixed ring；
The fixed ring of lower section cone cylinder (2) upper end setting is bolted with adjustable bend pipe (17) lower end fixed ring.
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| CN201610594766.6A CN106052973B (en) | 2016-07-27 | 2016-07-27 | Dike piping leaks intensity detecting device and its detection method |
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| CN201610594766.6A CN106052973B (en) | 2016-07-27 | 2016-07-27 | Dike piping leaks intensity detecting device and its detection method |
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| CN107907379B (en) * | 2017-12-30 | 2023-12-22 | 扬州大学 | Portable groundwater sampling device |
| CN109781354B (en) * | 2018-04-04 | 2021-04-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Dam body seepage underwater detection system based on velocity of flow response |
| CN109238646B (en) * | 2018-10-23 | 2019-05-28 | 汤十力 | Method and apparatus according to suspension ball motion morphology tracing and positioning leakage passage entrance |
| CN110376275B (en) * | 2019-07-24 | 2021-02-02 | 中南大学 | Dam leakage connectivity detection method and device based on magnetic field measurement |
| CN113340528B (en) * | 2021-05-26 | 2022-09-13 | 上海弘渊工程监理有限公司 | Wall leakage detection device for engineering supervision |
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| US5219388A (en) * | 1992-01-17 | 1993-06-15 | University Of Florida | Method and apparatus for testing water permeability of concrete |
| CN101226129A (en) * | 2008-01-25 | 2008-07-23 | 成都理工大学 | Body variate method for sample penetrability flow measurement |
| CN201514237U (en) * | 2009-10-16 | 2010-06-23 | 华南理工大学 | Device for measuring seepage flow of dam of reservoir |
| CN102435230A (en) * | 2011-08-26 | 2012-05-02 | 中国农业大学 | Slope plot runoff flow measurement system of triangular weir |
| CN203148527U (en) * | 2013-02-03 | 2013-08-21 | 余胜东 | Sliding resistor type liquid level sensor |
| CN103147420B (en) * | 2013-02-18 | 2015-03-04 | 河海大学 | Test device and method for researching sea wall engineering piping phenomenon |
| CN203163833U (en) * | 2013-03-27 | 2013-08-28 | 浙江工贸职业技术学院 | Slide-bar type liquid-level height acquisition instrument |
| CN205301356U (en) * | 2015-12-31 | 2016-06-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Be used for dam body percolation flow velocity measuring graduated flask |
| CN206114222U (en) * | 2016-07-27 | 2017-04-19 | 扬州大学 | Dykes and dams piping seepage intensity detection device |
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Effective date of registration: 20231116 Address after: Room C218-1, Building 2, No. 217, Kaifa West Road, High-tech Industrial Development Zone, Yangzhou City, Jiangsu Province, 225000 Patentee after: Jiangsu Jinhui Information Technology Co.,Ltd. Address before: 225009 No. 88, South University Road, Jiangsu, Yangzhou Patentee before: YANGZHOU University |
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