CN202562946U - Underground water flow-rate flow-direction detecting device - Google Patents

Underground water flow-rate flow-direction detecting device Download PDF

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Publication number
CN202562946U
CN202562946U CN2012201783170U CN201220178317U CN202562946U CN 202562946 U CN202562946 U CN 202562946U CN 2012201783170 U CN2012201783170 U CN 2012201783170U CN 201220178317 U CN201220178317 U CN 201220178317U CN 202562946 U CN202562946 U CN 202562946U
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CN
China
Prior art keywords
module
source
throwing
terminal
data
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Expired - Fee Related
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CN2012201783170U
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Chinese (zh)
Inventor
许波琴
陈亮
李刚
黄德文
詹沪成
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Hohai University HHU
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Hohai University HHU
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Priority to CN2012201783170U priority Critical patent/CN202562946U/en
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Publication of CN202562946U publication Critical patent/CN202562946U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses an underground water flow-rate flow-direction detecting device which comprises a data terminal, a test terminal and a source placing module. The data terminal comprises a control module, a computation module, a display module, a first communication module, and the computation module, the display module, the first communication module are respectively connected with the control module. The source placing module comprises a source placing device and a source placing drive motor, and the source placing drive motor is arranged below the source placing device. The test terminal comprises even pairs of conductivity electrodes, an exchange motivation module, a channel switching module, a measuring range switching module, a data collecting module, a data processing module and a second communication module. The underground water flow-rate flow-direction detecting device uses conductivities as tracer agents and has accurate detecting results and strong applicability, and does no harm to the environment and health of operators.

Description

A kind of groundwater velocity and direction sniffer
Technical field
The utility model belongs to the hydrogeological parameter field of detecting, particularly the sniffer of rock soil mass Groundwater Flow direction and Groundwater Flow speed.
Background technology
In the prior art, groundwater velocity and direction detection method commonly used is the tracer test that adopts in the boring, and porous tracer test and single hole tracer test etc. are arranged.The porous tracer test generally comprises a throwing source mouth and several monitoring holes, in the mouth of throwing source, drops into tracer agent, the variation of monitoring tracer concentration in monitoring holes, because the quantity in hole is more, so experimentation cost is high, the test period is long; For the single hole tracer test; Be a kind of, in groundwater velocity and direction detection at present, have a wide range of applications, still based on the theoretical flow rate and direction detection method of single hole dilution; In order to ensure the accuracy of measurement result; The single hole trace method generally uses radioactive isotope as tracer agent, and radioisotopic use meeting produces harm to the health of environment and testing crew, has greatly limited using and promoting of it.
Based on above analysis, the design people studies improvement to existing groundwater velocity and direction sniffer, and this case produces thus.
The utility model content
The purpose of the utility model is to provide a kind of groundwater velocity and direction sniffer, and it is led with electricity is tracer agent, and its result of detection is accurate, and applicability is strong, and can not produce harm to environment and operating personnel's health.
In order to reach above-mentioned purpose, the solution of the utility model is:
A kind of groundwater velocity and direction sniffer comprises data terminal, test terminal and throwing source module, and wherein, data terminal comprises control module and distinguishes connected computing module, display module, first communication module; Throw source module and comprise throwing source device and the source of throwing drive motor, throw the below that the source drive motor is arranged on throwing source device, and driving throwing source device carries out the throwing source under the control of control module; The test terminal comprises even-even conductance electrode, ac-excited module, channel switching module, range handover module, data acquisition module, data processing module and second communication module; The throwing source mouth that the even-even conductance electrode evenly is arranged in to throw the source device is on the circumference in the center of circle; Second communication module is set up communication with first communication module in the data terminal and is connected; Channel switching module is connected with each conductance electrode; Ac-excited module is connected with second communication module, and the generation sinusoidal ac signal puts on fluid to be measured under the control of control module; The input end of range handover module connects second communication module, and output terminal then connects data acquisition module, and the output terminal of said data acquisition module connects second communication module via data processing module.
After adopting such scheme, the utility model as tracer agent, mouth around is provided with conductance electrode in the throwing source through the electric drain of projection, and phreatic mobile meeting makes electric drain density unevenness even, and therefore, the electric conductivity value that the electrode detector in downstream arrives is greater than upstream electrode.Through each over time, draw electric drain concentration in time and the space distribution that changes, thereby judge phreatic flow direction and further calculate phreatic flow velocity size, have following beneficial effect the electric conductivity value of electrode detector:
(1) the utility model utilization electricity is led the detection of carrying out groundwater velocity and direction for tracer agent, can not pollute environment, also can not produce harm to operating personnel's health, and cheap, realizes easily;
When (2) utilizing the sniffer of the utility model to carry out parameter detection, easy to operate, accuracy is high, has applicability widely;
(3) the utility model is based on the broad sense dilution model of groundwater velocity, and electricity leads to distribute has good regularity and stability, makes result of detection accurate, and good reproducibility;
(4) the utility model adopts the high precision electricity to lead sensing probe, and conductance measurement is accurate, and the measurement result precision has a good guarantee.
Description of drawings
Fig. 1 is the described process flow diagram of surveying groundwater velocity and direction into tracer agent of leading with electricity of the utility model;
Fig. 2 is the described integrated stand composition of surveying the groundwater velocity and direction device into tracer agent of leading with electricity of the utility model;
Fig. 3 is the described schematic diagram of surveying the groundwater velocity and direction device into tracer agent of leading with electricity of the utility model;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the direction of groundwater flow judgement figure that the said method and apparatus of the utility model obtains;
Fig. 6 is the groundwater velocity judgement figure that the said method and apparatus of the utility model obtains.
Embodiment
Below will combine accompanying drawing, the technical scheme of the utility model will be elaborated.
At first cooperate Fig. 2 and shown in Figure 3, the utility model provides a kind of groundwater velocity and direction sniffer, comprises data terminal, test terminal and throwing source module, introduces respectively below.
Data terminal comprises display module, control module, computing module and first communication module, and said computing module is connected with control module, and the detection data with the test terminal under the order of control module is converted into electric conductivity value; Display module is connected with control module, the demonstration of under the order of control module, being correlated with; First communication module is connected with control module, is used between control module and test terminal, setting up data transmission.
Throw source module and comprise throwing source device and the source of throwing drive motor, throw the source drive motor and be arranged on device below, throwing source, and electrically connect, under the order of control module, realize the purpose in throwing source with control module.
The test terminal comprises even-even conductance electrode, ac-excited module, channel switching module, range handover module, data acquisition module, data processing module and second communication module; Wherein, The throwing source mouth that the even-even conductance electrode evenly is arranged in to throw the source device is on the circumference in the center of circle; First communication module in second communication module and the data terminal establishes a communications link, and carries out data transmission; Channel switching module is connected with each conductance electrode, is used for selected certain a pair of electrode channel under the control of control module; Ac-excited module is connected with second communication module, under the control of control module, produces sinusoidal ac signal and puts on fluid to be measured; The range handover module is connected with second communication module, under the control of control module, switches to suitable range according to the resistance value that records; Data acquisition module is connected with the range handover module, obtains measured value with its selected range, and sends into data processing module; The output terminal of data processing module connects second communication module, measured value is handled the back be sent to data terminal through second communication module.
During actual the use, can cooperate Fig. 3 and shown in Figure 4, test terminal and throwing source module are set together; Specifically; The metal sleeve 1 of sealing is divided into up and down two parts, the test terminal is arranged on the top of metal sleeve 1, and the bottom is provided with throwing source device 2; And be the center with the throwing source mouth 21 of throwing source device 2, arrange 8 conductance electrodes 3 in the circumference equal intervals; The piston type that throwing source device 2 adopts non-contact magnetically to drive is thrown the source device, in the airtight metal sleeve of its below, places throwing source drive motor 4; Through driving the magnetic handle of throwing source device 2 piston base; Drive screw thread rotation, slowly advance throwing source piston, thereby reach the purpose in even throwing source.
During measurement, at first send the order that begins to survey through control module, this order gets into the test terminal through communication module; At first through the selected successively 8 pairs of electrode channels of channel switching module, the proceeding measurement electricity is led, behind selected some passages; Produce sinusoidal ac signal (sinusoidal ac signal is put on fluid to be measured, can prevent that polarization from producing error) by ac-excited module, and via two electrodes of selected passage; Alternating voltage is put on fluid to be measured, and (detection principle of employing is the liquid resistance value of measuring between these two electrodes, after measuring-signal is handled through the data processing module of back to begin detection; Send to data terminal, and finally be scaled electric conductivity value), at this moment; According to measured resistance value, switch to suitable range by the range handover module, carry out data acquisition by data acquisition module again; The signal that collects is an analog voltage signal; In data processing module, carry out carrying out the AD conversion after signal amplifies, will change good digital signal at last, adopt 485 communications to be transferred to data terminal through second communication module; After data terminal receives digital signal, detectable signal is converted into electric conductivity value, and shows by display module via computing module.
As shown in Figure 1, be the general step of the utility model when work, comprise following content:
(1) is the center of circle with throwing source mouth, 8 pairs of conductance electrodes are set to the circumference equal intervals around;
(2) evenly throw electric drain through data terminal control throwing source device, and be the interval with the certain hour, 8 pairs of interelectrode electric conductivity values of detecting periodically;
(3) after after a while, the electric conductivity value that utilizes synchronization to measure is the vector size with the electric conductivity value size; With throwing source mouth is direction vector to the direction that electrode connects mid point to each; Obtain 8 electricity and lead vector, utilize the vector synthetic method, utilize parallelogram law to superpose vector; Obtain phreatic flow direction, judge that the schematic diagram of direction of groundwater flow can be with reference to shown in Figure 5;
(4) space distribution of drafting electric conductivity value time to time change according to electric conductivity value space distribution and time relation, according to a law of dilution, calculates phreatic flowing velocity (seeing formula 1), judges that the schematic diagram of groundwater velocity can be with reference to shown in Figure 6.
v f ( z ) = πr 2 αt ln N 0 N - - - ( 1 )
Wherein, r is the sleeve pipe radius, and α is the flow distortion coefficient, N 0Be the initial concentration value, N is a t concentration value constantly.
Above embodiment is merely the technological thought of explanation the utility model; Can not limit the protection domain of the utility model with this; Every technological thought that proposes according to the utility model, any change of on the technical scheme basis, being done all falls within the utility model protection domain.

Claims (1)

1. groundwater velocity and direction sniffer is characterized in that: comprise data terminal, test terminal and throwing source module, wherein, data terminal comprises control module and connected computing module, display module, first communication module respectively; Throw source module and comprise throwing source device and the source of throwing drive motor, throw the below that the source drive motor is arranged on throwing source device, and driving throwing source device carries out the throwing source under the control of control module; The test terminal comprises even-even conductance electrode, ac-excited module, channel switching module, range handover module, data acquisition module, data processing module and second communication module; The throwing source mouth that the even-even conductance electrode evenly is arranged in to throw the source device is on the circumference in the center of circle; Second communication module is set up communication with first communication module in the data terminal and is connected; Channel switching module is connected with each conductance electrode; Ac-excited module is connected with second communication module, and the generation sinusoidal ac signal puts on fluid to be measured under the control of control module; The input end of range handover module connects second communication module, and output terminal then connects data acquisition module, and the output terminal of said data acquisition module connects second communication module via data processing module.
CN2012201783170U 2012-04-24 2012-04-24 Underground water flow-rate flow-direction detecting device Expired - Fee Related CN202562946U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201783170U CN202562946U (en) 2012-04-24 2012-04-24 Underground water flow-rate flow-direction detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201783170U CN202562946U (en) 2012-04-24 2012-04-24 Underground water flow-rate flow-direction detecting device

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CN202562946U true CN202562946U (en) 2012-11-28

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103698820A (en) * 2013-12-12 2014-04-02 河海大学 Method and device for mechanically and uniformly throwing tracer injection agent in deep and thin shaft
CN105259366A (en) * 2015-10-30 2016-01-20 武汉工程大学 Measuring device and method for seepage flow velocity
CN106483326A (en) * 2016-09-21 2017-03-08 北京南科大蓝色科技有限公司 A kind of subsoil water detecting system
CN109782020A (en) * 2019-01-14 2019-05-21 贾颢晨 Underground tomography water (flow) direction detection device and detection method
WO2019233105A1 (en) * 2018-06-04 2019-12-12 安徽理工大学 Device and method for measuring flow rate, flow direction, and geological parameter of deep-well cross-hole groundwater
CN111679096A (en) * 2020-06-18 2020-09-18 中国电建集团贵阳勘测设计研究院有限公司 Device and method for testing flow velocity and flow direction of underground water based on conductivity

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103698820A (en) * 2013-12-12 2014-04-02 河海大学 Method and device for mechanically and uniformly throwing tracer injection agent in deep and thin shaft
CN105259366A (en) * 2015-10-30 2016-01-20 武汉工程大学 Measuring device and method for seepage flow velocity
CN106483326A (en) * 2016-09-21 2017-03-08 北京南科大蓝色科技有限公司 A kind of subsoil water detecting system
CN106483326B (en) * 2016-09-21 2019-09-13 北京南科大蓝色科技有限公司 A kind of underground water detection system
WO2019233105A1 (en) * 2018-06-04 2019-12-12 安徽理工大学 Device and method for measuring flow rate, flow direction, and geological parameter of deep-well cross-hole groundwater
CN109782020A (en) * 2019-01-14 2019-05-21 贾颢晨 Underground tomography water (flow) direction detection device and detection method
CN109782020B (en) * 2019-01-14 2019-09-24 贾颢晨 Underground tomography water (flow) direction detection device and detection method
CN111679096A (en) * 2020-06-18 2020-09-18 中国电建集团贵阳勘测设计研究院有限公司 Device and method for testing flow velocity and flow direction of underground water based on conductivity

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Granted publication date: 20121128

Termination date: 20150424