CN208350834U - A kind of wide-range groundwater velocity and direction test device - Google Patents
A kind of wide-range groundwater velocity and direction test device Download PDFInfo
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- CN208350834U CN208350834U CN201820812793.0U CN201820812793U CN208350834U CN 208350834 U CN208350834 U CN 208350834U CN 201820812793 U CN201820812793 U CN 201820812793U CN 208350834 U CN208350834 U CN 208350834U
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Abstract
The utility model belongs to hydrogeological parameter testing field, and in particular to a kind of wide-range groundwater velocity and direction test device.The test device includes: the groundwater velocity measurement module based on thermal agitation technology；Groundwater velocity based on fluid mechanic model measures module；And the cabinet of the fixed groundwater velocity measurement module based on thermal agitation technology and the groundwater velocity measurement module based on fluid mechanic model.It is 10 according to the measurement range of data determination the flow speed value Vs, flow speed value Vs of acquisition to obtain data based on the groundwater velocity of thermal agitation technology measurement module‑7m/s<Vs<10‑2m/s；Data are obtained with the groundwater velocity measurement module based on fluid mechanic model, are 10 according to the measurement range of data determination the flow speed value Vs, flow speed value Vs of acquisition‑2m/s<Vs<102The flow velocity of m/s, to extend measuring range with set of device.
Description
Technical field
The utility model belongs to hydrogeological parameter testing field, and in particular to a kind of wide-range groundwater velocity and direction survey
Trial assembly is set.
Background technique
Seepage action of ground water has widespread demand in hydrogeology, engineering geology, environmental geology numerous areas.Seepage action of ground water class
It is the emphasis of underground water scientific research than the constitutive equation for hydrogeological science.Seepage action of ground water is also usually from engineering geology
The main inducing of field geological disaster, such as landslide, mud-rock flow, surface collapse, dam foundation piping and seepage.Seepage action of ground water causes soil
Solute transfer and water soluble contaminants diffusion, are also the influence factors of soil and underground water pollution reparation.As described above, as retouching
Analysis of Ground-water Seepage Field main characteristic parameters are stated, the real-time monitoring of groundwater velocity and direction is significant, and application field is extensive.
There are various problems, such as more well bailing tests, trace method, region to fill out for traditional groundwater velocity and direction test method
Figure estimation algorithm etc. is needed through more mouthfuls of monitoring well translocations, time-consuming and laborious, low precision, can not high-efficiency precision will definitely arrive long-term sequence
Groundwater velocity and direction data, be unfavorable for long-term automatic monitoring.It is limited to this, forefathers have carried out Zhuo Youcheng to new test method
Trying and exploring for effect, is divided into following four class by different working principles:
1) groundwater velocity is measured based on plasma diffusing W,Mo principle, such as United States Patent (USP) US4570492, in the underground water of flowing
Electrochemical ion known to Cycle-release obtains groundwater velocity by the information of receiver analytical chemistry ion transport.Base
Flow velocity is measured in anaclasis principle, such as United States Patent (USP) US4063019, light source is refracted into the underground water of flowing, passes through picture number
Word converter receives refraction light source, and analysis obtains groundwater velocity.Such work is also belonged to based on the method that radioactive neutron tests the speed
Make principle.
2) microphotograph measure groundwater velocity and direction, as U.S. Geotech produce AquaVISION, using video tube
Road photomicrographic technique carries out microphotograph capture to particulate matter in underground water, by microcosmic a large amount of in statistical analysis underground water
Grain object, realizes the real-time measurement of the flow velocity of underground water, flow direction and granular size.It avoids using excessive monitoring well and sensor,
Test speed is fast, and data volume is big, favorable repeatability, the situation very low suitable for groundwater velocity, flow rate and direction is more stable.Its
Disadvantage is: 1. with the poor compatibilities of other monitoring means, automatic data collection and secondary development can not be carried out；2. by microcosmic
The groundwater velocity that particle statistic averagely obtains, physical significance is not apparent, whether is equivalent to macroscopical underground water across scale dimension applications
Mean flow velocity value is still worth discussion；3. being of limited application, suitable laminar flow, groundwater velocity is especially slow, direction of groundwater flow is more steady
Fixed harsh conditions.
3) it is based on energy field disturbance monitoring groundwater velocity.Porous media heat generating device people is set in the underground water of flowing
Work excitation temperature field, when subsurface flow is through the region, the steady temperature field that can be formed to resistance wire causes regular disturbance, passes through
The temperature sensor that surrounding lays array characterizes the temperature field of the disturbance, to obtain groundwater velocity, is suitable for subsurface flow
The lesser situation of speed.The technology starts sex work derived from what U.S. Carl Thomas in 1911 was taught, is manually swashed by energy field
It has been continued to develop since technology nearly 50 years of hair test groundwater velocity, such as acoustic wavefield perturbation technique based on Doppler effect
(such as US3498127,1970), thermistor technology (such as US4391137, nineteen eighty-three), ground water electric conductivity perturbation technique are (such as
US5339694,1994), based on thermal agitation technology (US5412983, nineteen ninety-five) etc..But the technology exists in practical applications
The defects of underground equipment is more, monitoring system linear debugging calibration is time-consuming and laborious, and testing range is limited.
4) it is based on fluid mechanic model, displacement and deflection direction by setting measurement swing ball provide one kind and pass through electricity
The groundwater velocity and direction test method (such as Chinese patent CN105486351A) of sub- compass, photosensitive element, temperature sensor.Knot
Structure is simple, cost is relatively low, no pollution to the environment, and be conducive to longtime running, but problem is: flow velocity testing range is limited, is not suitable for
Measure the lower situation of groundwater velocity；Secondly, measuring swing ball horizontal direction position using photosensitive element LED in conventional solution
It moves, precision is poor, limits the practical application of this method.Chinese patent CN105676308B is improved based on the test method, is adopted
With 3 or more pressure sensor test displacements and azimuth, solve the problems, such as that horizontal displacement measuring accuracy is poor, but test volume
Journey be not suitable for low flow velocity measurement the problem of still do not solve preferably.
Groundwater velocity and direction monitoring is significant, and application field is extensive.Forefathers carry out ground based on different working principles
It is lauched the exploitation and trial of flow rate and direction monitoring device, but still practical engineering application can not be better meet: being surveyed based on ion
The method one of speed pollutes underground environment, and system compatibility is general, has applied less.It is special based on microphotograph method for measuring two
Not Shi Yongyu ultra low flow velocity the case where, testing range be suitable for 10-5M/s hereinafter, but system compatibility it is poor, monitoring data are unfavorable for
Secondary development is integrated；Three testing range of method based on energy field disturbance test is moderate, is suitable for 10-7~10-2M/s is substantially full
The groundwater velocity measurement of foot under normal conditions, and using the test essence such as temperature sensor, conductivity sensor, pressure sensor
Degree is high, reproducible, system compatibility is good；Method based on mechanics and kinematic principle is suitable for the larger situation (10 of flow velocity-2
~102M/s), it is applicable in situations such as underground water flow in the bedrock fracture, solution cavity pipeline stream, pressure-bearing water jet.
As described above, there are two major defects for existing groundwater velocity and direction monitoring device: first is that testing range by
Limit, the test method of different operating principle, testing range have segmenting, restricted application；Followed by monitor system
Integration, long-term sequence in-situ monitoring, automatic transmission and monitoring data second development and utilization are engineering demand emphasis and future
Monitoring technology developing direction, and tested the speed based on ion and there is different degrees of system collection based on microphotograph method for measuring
Become second nature defect, is unfavorable for remote auto transmission and the second development and utilization of monitoring data.Therefore, have testing range to be developed compared with
Novel underground water flow flow speed and direction monitoring device wide, measuring accuracy is high, technical compatibility is good.
Utility model content
To solve the deficiencies in the prior art, the utility model provides a kind of wide-range groundwater velocity and direction test dress
It sets, and in particular to be able to achieve the integrated test facility of wide-range groundwater velocity and direction measurement, and be based on the integrated test facility
Wide-range groundwater velocity and direction monitor system.
Technical solution provided by the utility model is as follows:
A kind of wide-range groundwater velocity and direction test device, comprising:
Groundwater velocity based on thermal agitation technology measures module；
Groundwater velocity based on fluid mechanic model measures module；
And the groundwater velocity measurement module based on thermal agitation technology and described it is based on fluid mechanic model
Groundwater velocity measurement module cabinet.
Wide-range groundwater velocity and direction test device provided by above-mentioned technical proposal, with the ground based on thermal agitation technology
It is lauched measurement of rate of flow module and obtains data, be 10 according to the measurement range of data determination the flow speed value Vs, flow speed value Vs of acquisition-7m/
s<Vs<10-2m/s；Data are obtained with the groundwater velocity measurement module based on fluid mechanic model, according to the data determination of acquisition
The measurement range of flow speed value Vs, flow speed value Vs are 10-2m/s<Vs<102The flow velocity of m/s, to extend measurement amount with set of device
Journey.
Specifically, the groundwater velocity measurement module based on thermal agitation technology includes:
First power supply；
It is electrically connected the first sensor data collector of first power supply；
Several first temperature sensors being electrically connected respectively with the first sensor data collector；
And the heater element being electrically connected with first power supply.
Above-mentioned technical proposal provides the structure basis of the measurement module of the groundwater velocity based on thermal agitation technology.
Specifically, the groundwater velocity measurement module based on fluid mechanic model includes:
Second power supply；
It is electrically connected the second sensor data collector of second power supply；
The three-dimensional electronic compass being electrically connected with the second sensor data collector, the three-dimensional electronic compass are fixed on
In metal ball；
And several second temperature sensors being electrically connected respectively with the second sensor data collector.
Further, first temperature sensor and the second temperature sensor are same temperature sensor；It is described
First power supply and second power supply are same power supply；The first sensor data collector and described the
Two sensor data acquisition devices are same sensor data acquisition device.
It is surveyed namely based on the groundwater velocity measurement module of thermal agitation technology and the groundwater velocity based on fluid mechanic model
The public each temperature sensor of cover half block.When wherein, based on fluid mechanic model measurement groundwater velocity, temperature sensor is used
To convert to obtain the kinematic viscosity of fluid.
Above-mentioned technical proposal provides the structure technology of the measurement module of the groundwater velocity based on fluid mechanic model.
Further, the cabinet includes the waterproof cabinet on top and the perforation cabinet of lower part, and the sensing data is adopted
Storage and the power supply are arranged in the waterproof cabinet, each temperature sensor, the heater element and described three
It ties up electronic compass to be arranged in the perforation cabinet, the side wall of the perforation cabinet is provided with several jet holes.
Based on the above-mentioned technical proposal, the device isolation for working He not working in water in water is separated, is may be implemented each
Installation of the component on same cabinet.
Further, the three-dimensional electronic compass is electrically connected the sensor data acquisition device, the number by data line
It is passed through according to line from the middle part of the roof of the perforation cabinet, the heater element winding is on the data line.
Based on the above-mentioned technical proposal, it is overlapping with three-dimensional electronic compass installation space that heater element may be implemented, thus into
One step reduces the volume of monitoring system, to adapt to small space under boring well.
Specifically, the surrounding of the heater element, each temperature sensor to institute is arranged in each temperature sensor
The distance for stating heater element is not identical, and quantity 3 or more.
Based on the above-mentioned technical proposal, it on the one hand can be obtained by temperature sensor needed for the viscosity, mu for calculating underground water
On the other hand underground environment mean temperature can obtain the groundwater velocity based on thermal agitation technology by each temperature sensor
X required for measuring methodTAnd YT。XTFor the subsurface flow temperature difference of horizontal direction X-axis, YTFor the underground water of horizontal direction Y-axis
Flow temperature difference.
Specifically, being provided with hanger at the top of the waterproof cabinet, the hanger is fixed on cable.
The utility model additionally provides a kind of wide-range groundwater velocity and direction test method, is mentioned using the utility model
The wide-range groundwater velocity and direction test device of confession is tested, comprising the following steps:
To obtain the first data information based on the groundwater velocity of thermal agitation technology measurement module, according to first data
The measurement range of information measurement flow speed value Vs, the flow speed value Vs are 10-7m/s<Vs<10-2m/s；
The second data information is obtained with the groundwater velocity measurement module based on fluid mechanic model, according to second number
According to information measurement flow speed value Vs, the measurement range of the flow speed value Vs is 10-2m/s<Vs<102m/s。
Based on the above-mentioned technical proposal, to obtain data based on the groundwater velocity of thermal agitation technology measurement module, according to obtaining
The measurement range of the data determination flow speed value Vs, flow speed value Vs that take are 10-7m/s<Vs<10-2m/s；To be based on fluid mechanic model
Groundwater velocity measurement module obtain data, according to the data determination flow speed value Vs of acquisition, the measurement range of flow speed value Vs is
10-2m/s<Vs<102The flow velocity of m/s, to extend measuring range with set of device.
Specifically, data are obtained with the groundwater velocity measurement module based on fluid mechanic model, according to the data of acquisition
Measure flow speed value Vs:
Wherein:
M is metal ball quality；G is acceleration of gravity, it is known that；ρ is underground water density, it is known that；V is metal spherosome
Product, it is known that；μ is the viscosity of underground water, is closed with underground water temperature T-phase, and calculating acquires；θ is measured by three-dimensional electronic compass
The vertical deflection angle of metal ball；R is metal crown radius, it is known that.
Targeted viscous fluid is classical flow problem around ball movement in above-mentioned technical proposal.Small Reynolds number situation
Under, the amount rank of viscous force is more much bigger than the amount rank of inertia force, i.e., viscous force plays a leading role to flowing, and inertia force is smaller negligible
Disregard.Slow subsurface flow is reduced to viscous incompressible fluid, passes through simultaneous continuity equation, kinematical equation, heating power
It learns equation and analytic solutions can be obtained in boundary condition.
Continuity equation: div V=0
Kinematical equation: grad P=μ Δ V
Thermodynamical equilibrium equation:
Horizontal direction fluid resistance analytic solutions: W=6 π μ Vr
In formula:
Vs is fluid velocity, tensor, parameter to be asked；
P is the viscous stress acted on ball, tensor；
μ is the viscosity of underground water, is varied with temperature；
R is crown radius, it is known that；
Mechanical balance analysis is carried out to ball, as shown in Figure 2:
The mechanical balance of horizontal direction: W=Nsin θ
The mechanical balance of vertical direction: Ncos θ=mg- ρ gV
Simultaneous above formula and horizontal direction fluid resistance, can obtain:
6 π μ Vr=(mg- ρ gV) tan θ
Water flow rate value under old place:
Wherein, the viscosity of underground waterT is underground water temperature, unit m2/s.
Specifically, being surveyed with obtaining data based on the groundwater velocity of thermal agitation technology measurement module according to the data of acquisition
Determine flow speed value Vs:
XTFor the subsurface flow temperature difference of horizontal direction X-axis, YTFor the subsurface flow temperature difference of horizontal direction Y-axis, by true
Positioning sets 3 of laying and temperatures above sensor surveys to obtain, specifically, each temperature sensor is arranged in the fever
The distance of the surrounding of element, each temperature sensor to the heater element is not identical.Preferred scheme, any two are adjacent
The angle of vertical line projection in the horizontal plane of temperature sensor to heater element be equal.ω is empirical coefficient.
Generally, the utility model be based on fluid mechanic model test groundwater velocity eliminate conventional solution institute according to
Bad pressure sensor or displacement sensor, it is only necessary to which three-dimensional electronic compass (straight geodetic angle of declination θ) and temperature sensor (pass through temperature
The temperature conversion that degree sensor obtains obtains underground water viscosity number μ, and two kinds of test philosophies share temperature sensor) obtain underground water
Flow speed value.In addition, to be that testing range range effectively covers groundwater velocity very fast but more important for its purpose and beneficial effect
Engineer application scene (such as flow in the bedrock fracture, solution cavity pipeline stream, leakage, water burst gushing water).
The utility model is compared with the prior art, and its advantages and advantage are:
1, the wide-range groundwater velocity and direction test method can realize the test of two kinds of different operating principles, method advantage
Complementary, testing range modularization segmentation, means of testing support (share temperature sensor, data acquisition module etc.) mutually, relatively pass through
Realize to Ji the test function of wide-range；
2, the wide-range groundwater velocity and direction test method includes to be based on mechanics and kinematic principle, using ideal viscosity
The Classical Fluid Mechanics model that fluid is moved around ball ignores Inertia and obtains economics analysis solution, and from theory deduction letter
Change the pressure sensor or displacement sensor eliminated in conventional solution, specific embodiment has larger compared with traditional technology
Amplitude is improved；
3, wide-range groundwater velocity and direction monitoring system is by integrating two kinds of test methods, so that testing range is substantially
Broadening, application range further expansion；
4, the wide-range groundwater velocity and direction monitoring system testing precision height, favorable repeatability, system integration ability by force,
Monitoring data are conducive to the advantages that secondary development, are the integrated developing direction of following underground water automatic monitoring field modularization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wide-range groundwater velocity and direction test device provided by the utility model.
Fig. 2 is wide-range groundwater velocity and direction test device provided by the utility model based on fluid mechanic model
Measuring principle figure.
In attached drawing 1,2, structure list representated by each label is as follows:
1, hanger, 2, waterproof cabinet, 3, perforation cabinet, 301, jet hole, 4, cable, 5, power supply, 6, sensor number
According to collector, 7, heater element, the 8, first temperature sensor, 9, second temperature sensor, 10, third temperature sensor, 11, three
Tie up electronic compass, 12, metal ball.
Specific embodiment
The principles of the present invention and feature are described below, illustrated embodiment is served only for explaining the utility model,
It is not intended to limit the scope of the utility model.
In a specific embodiment, as shown in Figure 1, wide-range groundwater velocity and direction test device, comprising: be based on
The groundwater velocity measurement module of thermal agitation technology, the groundwater velocity based on fluid mechanic model measure module and fix
The case of groundwater velocity measurement module based on thermal agitation technology and the groundwater velocity measurement module based on fluid mechanic model
Body.
Groundwater velocity measurement module based on thermal agitation technology includes: power supply 5, the biography for being electrically connected power supply 5
If sensor data collector 6, the dry temperature sensor being electrically connected respectively with sensor data acquisition device and with power supply 5
The heater element 7 of electrical connection, specifically, heater element 7 is heating resistance wire.
Groundwater velocity measurement module based on fluid mechanic model includes power supply 5, the biography for being electrically connected power supply 5
Sensor data collector 6, the three-dimensional electronic compass 11 being connect with sensor data acquisition device 6 and each temperature sensor, three-dimensional electricity
Sub- compass 11 is fixed in metal ball 12.Three-dimensional electronic compass 11 is electrically connected sensor data acquisition device 6, number by data line
It is passed through according to line from the middle part of the roof of perforation cabinet 3, heater element 7 is wound on the data line.
That is, power supply 5, the sensor data acquisition device 6 for being electrically connected power supply 5 and each temperature sensor are two surveys
Cover half block shares.
Three, respectively the first temperature sensor 8, second temperature sensor 9, third temperature are arranged in temperature sensing implement body
Sensor 10 is separately positioned on the surrounding of heater element, respectively not identical to the distance of heater element, preferred scheme, and three
The vertical line projection angle in the horizontal plane of temperature sensor to heater element is 120 °, for the underground based on thermal agitation technology
Water flow velocity measure module and based on fluid mechanic model groundwater velocity measurement module it is public.
Cabinet includes the waterproof cabinet 2 on top and the perforation cabinet 3 of lower part, sensor data acquisition device 6 and power supply 5
It is arranged in waterproof cabinet 2, each temperature sensor, heater element 7 and three-dimensional electronic compass 11 are arranged in perforation cabinet 3, penetrate
The side wall of hole cabinet 3 is provided with several jet holes 301.The top of waterproof cabinet 2 is provided with hanger 1, and hanger 1 is fixed on cable 4
On.
Waterproof cabinet 2 and perforation cabinet 3 are riveted by screw thread, and the top of waterproof cabinet 2 connects hanger 1, perforation machine
The lower part of case 3 has bottom cover 4, to constitute entirety, and is connected to surface well head from underground monitoring region by cable 4.
2 waterproofing grade of waterproof cabinet is in IP68 or more, built-in power supply 5 and sensor data acquisition device device 6.
Perforation cabinet 3, preferred shape be it is cylindric, the perforation that gathers is arranged in cylinder side wall, make underground water through perforation and
Its flow velocity and physical property are not influenced；Cylinder side wall perforated interval alternative setting filtering, to protect built-in sensors to pop one's head in.It penetrates
3 disassembling cleaning of hole cabinet, periodic calibrating or replacement sensor probe；Material preferably meets water non-corrosive and prevents microorganism from growing
Raw brass alloys.
Downhole sensor data connection is transmitted to surface well head part, the wirerope load-bearing of setting by cable 5.
The power supply of sensor data acquisition device sensor data acquisition device sensor data acquisition device sensor data acquisition device
Power supply 5 is the multiple sensor power supplies in underground, output voltage 12-24V.
6 onboard data capture card of sensor data acquisition device can realize the automatic collection of multiple sensor analog signals, number
According to transmission and storage, such as 6008 type of NI produced in USA, Campbell CR10XT type data collecting card.
Heater element 7 is thermally formed local temperature field, a little higher than underground of temperature after heating stationary value in underground after being powered
The temperature value of water, the underground water for monitoring region form three-dimensional uniform temperature gradient field around resistance wire 7, are passed by fixed position
Sensor monitor value converts to obtain average groundwater velocity value and subsurface flow direction.
Temperature gradient field around each temperature sensor test characterization underground monitoring region heater element 7, quantitative requirement 3
Or more, 0.05 DEG C of required precision or more；Its purpose also resides in, real-time monitoring ground water temperature angle value, and it is viscous that conversion obtains underground water
The Dip countion that degree joint three-dimensional electronic compass 11 is surveyed acquires average groundwater velocity value.
The actual measurement of three-dimensional electronic compass 11 directly obtains horizontal subsurface flow direction α, and actual measurement obtains bead inclination angle theta to convert
Average groundwater velocity value, 0.01 ° of measuring accuracy；Interception angle it is probe internally provided in bead, simulate small Reynolds number situation under
The hydrodynamics warp that (being applicable in Stokes resistance formula or Oseen resistance formula, reynolds number Re < 1) viscous fluid is moved around ball
Allusion quotation approximate solution.Preferred scheme, the HEC365 type electronic compass that northern micro sensing Co., Ltd provides, weight about 20g, diameter is about
70mm, 0.01 ° of resolution ratio, the data of operating current 30mA, supply voltage 5-12V, reading can be used for secondary development.
Wide-range groundwater velocity and direction test device provided by above-mentioned technical proposal, with the ground based on thermal agitation technology
It is lauched measurement of rate of flow module and obtains data, be 10 according to the measurement range of data determination the flow speed value Vs, flow speed value Vs of acquisition-7m/
s<Vs<10-2m/s；Data are obtained with the groundwater velocity measurement module based on fluid mechanic model, according to the data determination of acquisition
The measurement range of flow speed value Vs, flow speed value Vs are 10-2m/s<Vs<102The flow velocity of m/s, to extend measurement amount with set of device
Journey.
Embodiment 1
Wide-range groundwater velocity and direction test device is put into water, 0~50m of depth, to be based on fluid mechanic model
Groundwater velocity measurement module obtain data, data storage is in sensor data acquisition device.Data acquisition is completed, by sensor
Data collector connects host, obtains measurement data, is calculated according to formula:
μ is that the viscosity of underground water passes throughIt measures, T is underground environment temperature, takes each temperature
Spend the average value of sensor.R is metal crown radius, it is known that.M is metal ball quality, it is known that.G is acceleration of gravity,
Know.ρ is water density, it is known that.V is round metal sphere volume, it is known that.θ is the perpendicular of the metal ball measured by three-dimensional electronic compass
To deflection angle.
If the measured value 10 of Vs-2m/s<Vs<102M/s, then Vs data are retained, if not in the range, Vs data are put
It abandons.
Embodiment 2
Wide-range groundwater velocity and direction test device is put into water, 0~50m of depth, based on thermal agitation model
Groundwater velocity measures module and obtains data, and data storage is in sensor data acquisition device.Data acquisition is completed, by sensor number
Host is connect according to collector, measurement data is obtained, is calculated according to formula:
Direction of groundwater flow:
Groundwater velocity value:
In formula: XTFor the subsurface flow temperature difference of horizontal direction X-axis, YTFor the subsurface flow temperature difference of horizontal direction Y-axis,
It surveys to obtain by 3 and temperatures above sensor determining position laying.ω is empirical coefficient, reflection groundwater velocity and temperature
Spend the linear relationship of field steady change, it was known that default setting.
If the measured value 10 of Vs-7m/s<Vs<10-2M/s, then Vs data are retained, if not in the range, Vs data are put
It abandons.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of wide-range groundwater velocity and direction test device characterized by comprising
Groundwater velocity based on thermal agitation technology measures module；
Groundwater velocity based on fluid mechanic model measures module；
And for the groundwater velocity measurement module based on thermal agitation technology and described it is based on fluid mechanic model
Groundwater velocity measurement module cabinet.
2. wide-range groundwater velocity and direction test device according to claim 1, which is characterized in that described to be disturbed based on heat
The groundwater velocity of dynamic technology measures module
First power supply；
It is electrically connected the first sensor data collector of first power supply；
Several first temperature sensors being electrically connected respectively with the first sensor data collector；
And the heater element (7) being electrically connected with first power supply.
3. wide-range groundwater velocity and direction test device according to claim 2, which is characterized in that described to be based on fluid
The groundwater velocity of mechanical model measures module
Second power supply；
It is electrically connected the second sensor data collector of second power supply；
The three-dimensional electronic compass (11) being electrically connected with the second sensor data collector, the three-dimensional electronic compass (11) are solid
It is scheduled in metal ball (12)；
And several second temperature sensors being electrically connected respectively with the second sensor data collector.
4. wide-range groundwater velocity and direction test device according to claim 3, it is characterised in that: the cabinet includes
The waterproof cabinet (2) on top and the perforation cabinet (3) of lower part, the first sensor data collector, the second sensor
Data collector, first power supply and second power supply (5) setting are in the waterproof cabinet (2), each institute
The first temperature sensor, each second temperature sensor, the heater element (7) and the three-dimensional electronic compass (11) is stated to set
It sets in the perforation cabinet (3), is provided with several jet holes (301) on the side wall of the perforation cabinet (3).
5. wide-range groundwater velocity and direction test device according to claim 4, it is characterised in that: the three-dimensional electronic
Compass (11) is electrically connected the second sensor data collector by data line, and the data line is from the perforation cabinet (3)
Roof in the middle part of pass through, the heater element (7) winding is on the data line.
6. wide-range groundwater velocity and direction test device according to claim 5, it is characterised in that: each second temperature
Spend sensor setting the heater element (7) surrounding, each second temperature sensor to the heater element (7) away from
From being all different.
7. wide-range groundwater velocity and direction test device according to claim 6, it is characterised in that: the waterproof cabinet
(2) it is provided at the top of hanger (1), the hanger (1) is fixed on cable (4).
8. wide-range groundwater velocity and direction test device according to claim 6, it is characterised in that: first temperature
Sensor and the second temperature sensor are same temperature sensor；First power supply and second power supply
For same power supply；The first sensor data collector and the second sensor data collector are same sensor
Data collector.
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| CN201820812793.0U CN208350834U (en) | 2018-05-29 | 2018-05-29 | A kind of wide-range groundwater velocity and direction test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828262A (en) * | 2018-05-29 | 2018-11-16 | 中国地质调查局武汉地质调查中心 | A kind of wide-range groundwater velocity and direction test device and method |
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2018
- 2018-05-29 CN CN201820812793.0U patent/CN208350834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828262A (en) * | 2018-05-29 | 2018-11-16 | 中国地质调查局武汉地质调查中心 | A kind of wide-range groundwater velocity and direction test device and method |
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