CN106199062A - The Microsphere device of seepage action of ground water speed and temperature - Google Patents
The Microsphere device of seepage action of ground water speed and temperature Download PDFInfo
- Publication number
- CN106199062A CN106199062A CN201610521631.7A CN201610521631A CN106199062A CN 106199062 A CN106199062 A CN 106199062A CN 201610521631 A CN201610521631 A CN 201610521631A CN 106199062 A CN106199062 A CN 106199062A
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- China
- Prior art keywords
- inner shell
- temperature
- microsphere
- shell
- threaded inner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004005 microsphere Substances 0.000 title claims abstract description 24
- 239000003673 groundwater Substances 0.000 title claims abstract description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
- G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Nonlinear Science (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention relates to a kind of seepage action of ground water speed and temperature measuring equipment, including microsphere detector, measuring resistance, DC/DC power supply, voltage and current regulator, current sensor and computer.Wherein, microsphere detector includes smooth jacket (1), screw-type inner shell (3), is wound around platinum filament (2), multiple thermocouple and rubber stopper (4), smooth jacket (1) is coaxial with screw-type inner shell (3), screw-type inner shell (3) is to be made by adiabatic insulant, surface configuration has the compact screw thread being used for fixing winding platinum filament (2), compact screw thread also makes the platinum filament length on sphere unit plane the most identical, is wound around between platinum filament (2) and smooth jacket (1) and fits tightly；Screw-type inner shell (3) is internal is cavity, and its top offers a passage, is used for burying and arrange wire, and rubber stopper (4) is used for closed channel, to prevent subsoil water from entering cavity inside；It is evenly arranged thermocouple (0), to obtain outer surface local temperature at outer surface of outer cover.The present invention has the advantage measuring the most accurately and not polluted underground water.
Description
Technical Field
The invention relates to the technical field of underground water resources, in particular to an underground water seepage speed and temperature measuring device.
Background
With the change of economic development mode in China, the utilization condition of water resources in China is changed, the exploitation of surface groundwater is increased year by year, and meanwhile, the groundwater pollution in certain regions is more and more severe. Therefore, the reasonable exploitation of underground water resources and the effective prevention of pollution of underground water resources are imminent.
The accurate data of the groundwater seepage flow velocity, the flow direction and the temperature are found out, and the vital physical basis is provided for determining the hydrogeological framework, developing groundwater resources, effectively utilizing geothermal resources, exploring the earth structure and the like. In some geological disasters, such as in the process of underground mineral exploitation, water damage in local areas is one of major disasters affecting safe production and construction, and dynamic monitoring of groundwater seepage speed also plays a key role in disaster reduction and prevention. At present, methods for measuring the local seepage velocity of underground water in real time include a thermal pulse type underground water velocimeter, a colloid endoscope scanning flowmeter and an acoustic Doppler velocimeter, and generally have high price or low precision.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a simple and cheap underground water seepage speed and temperature measuring device which does not pollute the environment. The technical scheme of the invention is as follows:
a microsphere measuring device for groundwater seepage velocity and temperature comprises a microsphere detector, a standard resistor, a DC/DC power supply, a voltage current regulator, a current sensor and a computer. Wherein,
the microsphere detector comprises a smooth outer shell (1), a threaded inner shell (3), a wound platinum wire (2), a plurality of thermocouples and a rubber plug (4), wherein the smooth outer shell (1) is coaxial with the threaded inner shell (3), the threaded inner shell (3) is made of a heat-insulating material, compact threads for fixing the wound platinum wire (2) are arranged on the surface of the threaded inner shell, the compact threads enable the platinum wires on the spherical unit surface to be identical in length, and the wound platinum wire (2) is tightly attached to the smooth outer shell (1); the threaded inner shell (3) is internally provided with a cavity, the top of the threaded inner shell is provided with a channel for burying and arranging wires, and the rubber plug (4) is used for sealing the channel so as to prevent underground water from entering the cavity; thermocouples (0) are uniformly arranged on the outer surface of the shell to obtain the local temperature of the outer surface.
The standard resistor is an adjustable high-precision standard resistor which is connected with the winding platinum wire in parallel, and the voltage current regulator is connected with the DC/DC power supply in series and is used for regulating the current and the voltage loaded on the winding platinum wire; the current sensor is used for collecting current change signals of a wound platinum wire, the collected current change signals are sent to the computer, and temperature signals collected by the thermocouple are also sent to the computer; and the computer obtains the information of the temperature, the speed and the flowing direction of the underground water through data processing according to the collected current change signal of the wound platinum wire and the local temperature signals of the outer surfaces of all parts collected by the thermocouple 0.
According to the invention, from the thermal balance angle, the speed and the temperature are measured by covering the platinum wire on the surface of the microsphere inner shell and utilizing the principle that the resistivity of the platinum wire changes linearly with the temperature, and the measuring method has the advantages of high precision, good real-time performance, convenience, reliability, low material price and no pollution to underground water resources after long-term putting. The principle is as follows: by utilizing joule effect, the platinum wire is electrified to generate certain heat, and the purpose of measurement is finally achieved through heat exchange balance. The advantages and advantages of the invention are: compared with the existing measuring instrument and method, the size is small, the compressive strength of the spherical structure is high, and the influence on the underground tissue structure is small; the material price is low; the signal acquired by the platinum wire covered on the surface of the microsphere inner shell and the thermocouple arranged on the outer surface of the microsphere is used, and the data processing of a computer is assisted, so that the temperature, the seepage speed and the seepage direction of underground water can be accurately obtained, the timeliness is realized, and the high-precision underground water survey is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a hollow textured inner shell assembly (unit is mm) of a microspherical device of the present invention, wherein (a), (b), (c), and (d) are respectively a front view, a left view, a top view, and a partial sectional view of the device;
FIG. 2 is a cross-sectional view of a microspheroidal device of the present invention;
FIG. 3 is a schematic view of the inner casing of the present invention wrapped with platinum wire;
FIG. 4 is a schematic circuit diagram of the testing of the micro-sphere device of the present invention;
FIG. 5 is a diagram of the operational structure of the present invention;
in the figure: 0. thermocouple 1, spherical detector outer shell 2, platinum wire 3, spherical detector inner shell 4, rubber plug 5, DC/DC power supply 6, voltage current regulator (DC/DC) 7, standard resistor 8, current sensor 9, PC
Detailed description of the preferred embodiment
For a further understanding of the contents, features and effects of the present invention, reference is made to the following embodiments, which are illustrated in the accompanying drawings:
referring to fig. 1 and 2, the micro-sphere apparatus for measuring groundwater seepage velocity and temperature mainly comprises 0 thermocouple, smooth outer shell 1, winding platinum wire 2, threaded inner shell 3, and rubber plug 4. The thread type inner shell 3 is made of heat insulation material, reduces heat loss, improves measurement and precision, is fully distributed with compact threads on the outer surface to fix platinum wires, and enables the platinum wires on the unit surface of the spherical surface to have the same length, namely enables the spherical surface to have uniform heat productivity, as shown in the inner cavity of the inner shell shown in figure 2, the top of the inner shell is provided with a channel for embedding and arranging leads; as shown in the layer c, the platinum wires 2 are arranged according to the inner shell grains; as shown in fig. 2, the outer shell 1 is divided into a left part and a right part, the inner surface and the outer surface are both smooth, so that the processing is good, the installation is convenient, in the installation process, the inner surface of the outer shell is tightly attached to a platinum wire, the contact thermal resistance is reduced, the heating value of the surface of the ball is further uniform, and the thermocouples 0 are uniformly distributed on the outer surface of the outer shell to obtain the local temperature of the outer surface; the rubber stopper 4 seals the wire channel, prevents that groundwater from getting into the cavity inside, makes the wire short circuit.
Referring to fig. 5, a working structure diagram of a micro-sphere device for measuring groundwater seepage velocity and temperature mainly includes a voltage current regulator (DC/DC)6, a standard resistor 7, a current sensor 8, and a PC 9.
The working process of the invention is as follows:
firstly, the micro-sphere detector in fig. 2 is buried in a porous medium (in a stratum) to be measured, when a power supply 5 outputs current, the voltage is stabilized at a constant value through a voltage regulator (DC/DC)6, a standard resistor 7 is connected with the micro-sphere detector in parallel for shunting, so that the current meets the rated value of a platinum wire, the platinum wire generates heat when being electrified, and the heat is uniformly transferred to a shell 1. When groundwater seepage passes through the microspheric detector in the process, heat exchange is carried out between the microsphere detector and the shell 1, when heat balance is achieved, the temperature of the microsphere is the temperature of groundwater, the temperature of the microsphere is expressed in a current form due to the linear change of the resistivity of a platinum wire along with the change of the temperature and the corresponding relation of the temperature, the resistance and the current, the output current is converted into signals through the current sensor 8, meanwhile, the shell is uniformly embedded with the thermocouple 0 at a fixed position to obtain a local electric signal (local temperature) of the outer surface of the microsphere, the two signals finally enter the PC 9, information such as the output current, the local heat of the surface of the microsphere and the resistivity is matched, corrected and analyzed, and the temperature, the speed and the flowing direction of the groundwater are finally obtained.
The measuring device of the invention is utilized to electrify and heat the platinum wire, the temperature finally reaches a stable value, the temperature is measured according to the corresponding relation between the resistance of the platinum wire and the temperature, the temperature distribution of the heat exchange process between the pellet and the surrounding medium is analyzed by utilizing the inverse method of the mixed nonlinear flow problem, the boundary condition and the initial condition are obtained, the speed measurement is achieved, and the speed direction is measured by the distribution of the local heat exchange quantity on the surface of the pellet.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (1)
1. A microsphere measuring device for groundwater seepage velocity and temperature comprises a microsphere detector, a standard resistor, a DC/DC power supply, a voltage current regulator, a current sensor and a computer. Wherein,
the microsphere detector comprises a smooth outer shell (1), a threaded inner shell (3), a wound platinum wire (2), a plurality of thermocouples and a rubber plug (4), wherein the smooth outer shell (1) is coaxial with the threaded inner shell (3), the threaded inner shell (3) is made of a heat-insulating material, compact threads for fixing the wound wire (2) are arranged on the surface of the threaded inner shell, the compact threads enable the platinum wires on the spherical unit surface to be identical in length, and the wound wire (2) is tightly attached to the smooth outer shell (1); the threaded inner shell (3) is internally provided with a cavity, the top of the threaded inner shell is provided with a channel for burying and arranging wires, and the rubber plug (4) is used for sealing the channel so as to prevent underground water from entering the cavity; thermocouples (0) are uniformly arranged on the outer surface of the shell to obtain the local temperature of the outer surface.
The standard resistor is an adjustable high-precision standard resistor and is connected with the winding wire in parallel, and the voltage current regulator is connected with the DC/DC power supply in series and is used for regulating the current and the voltage loaded on the winding wire; the current sensor is used for collecting current change signals of the wound wire, the collected current change signals are sent to the computer, and temperature signals collected by the thermocouple are also sent to the computer; and the computer obtains the information of the temperature, the speed and the flowing direction of the underground water through data processing according to the collected current change signals of the wound wire and the local temperature signals of the outer surfaces of the parts, which are collected by the thermocouple 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521631.7A CN106199062A (en) | 2016-07-05 | 2016-07-05 | The Microsphere device of seepage action of ground water speed and temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521631.7A CN106199062A (en) | 2016-07-05 | 2016-07-05 | The Microsphere device of seepage action of ground water speed and temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106199062A true CN106199062A (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521631.7A Pending CN106199062A (en) | 2016-07-05 | 2016-07-05 | The Microsphere device of seepage action of ground water speed and temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106199062A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769779A (en) * | 2017-01-22 | 2017-05-31 | 中国建筑设计咨询有限公司 | A kind of device and method for calculating seepage action of ground water speed and direction |
| CN107907706A (en) * | 2017-11-10 | 2018-04-13 | 北京卫星环境工程研究所 | Suitable for the hotting mask wind speed and direction measuring system under low pressure |
| CN108709845A (en) * | 2018-07-16 | 2018-10-26 | 中国建筑股份有限公司 | Soil layer three-dimensional infiltration field detecting system based on acoustic-electric coupled resonance and detection method |
| CN110006803A (en) * | 2019-04-04 | 2019-07-12 | 杨国华 | A kind of device and monitoring method of long-range monitoring seepage action of ground water speed |
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| CN101105466A (en) * | 2007-05-18 | 2008-01-16 | 湖南大学 | Underground soil heat conductance property on-spot test device |
| US20080202220A1 (en) * | 2005-02-02 | 2008-08-28 | Plantcare Ag | Device For Measuring Thermal Properties in a Medium and Method For Determining the Moisture Content in the Medium |
| CN101936932A (en) * | 2010-02-02 | 2011-01-05 | 国网电力科学研究院武汉南瑞有限责任公司 | Measuring probe of soil thermal resistivity based on point heat source method |
| CN104897718A (en) * | 2015-05-08 | 2015-09-09 | 西安交通大学 | Deep soil thermal parameter monitoring sensor and detection method |
| CN204694657U (en) * | 2015-04-29 | 2015-10-07 | 四川大学 | Miniature calorimeter |
-
2016
- 2016-07-05 CN CN201610521631.7A patent/CN106199062A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080202220A1 (en) * | 2005-02-02 | 2008-08-28 | Plantcare Ag | Device For Measuring Thermal Properties in a Medium and Method For Determining the Moisture Content in the Medium |
| CN101105466A (en) * | 2007-05-18 | 2008-01-16 | 湖南大学 | Underground soil heat conductance property on-spot test device |
| CN101936932A (en) * | 2010-02-02 | 2011-01-05 | 国网电力科学研究院武汉南瑞有限责任公司 | Measuring probe of soil thermal resistivity based on point heat source method |
| CN204694657U (en) * | 2015-04-29 | 2015-10-07 | 四川大学 | Miniature calorimeter |
| CN104897718A (en) * | 2015-05-08 | 2015-09-09 | 西安交通大学 | Deep soil thermal parameter monitoring sensor and detection method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769779A (en) * | 2017-01-22 | 2017-05-31 | 中国建筑设计咨询有限公司 | A kind of device and method for calculating seepage action of ground water speed and direction |
| CN107907706A (en) * | 2017-11-10 | 2018-04-13 | 北京卫星环境工程研究所 | Suitable for the hotting mask wind speed and direction measuring system under low pressure |
| CN107907706B (en) * | 2017-11-10 | 2019-11-08 | 北京卫星环境工程研究所 | Suitable for the hotting mask wind speed and direction measuring system under low pressure |
| CN108709845A (en) * | 2018-07-16 | 2018-10-26 | 中国建筑股份有限公司 | Soil layer three-dimensional infiltration field detecting system based on acoustic-electric coupled resonance and detection method |
| CN108709845B (en) * | 2018-07-16 | 2023-08-01 | 中国建筑股份有限公司 | Soil layer three-dimensional permeable field detection system and detection method based on acoustic-electric coupling resonance |
| CN110006803A (en) * | 2019-04-04 | 2019-07-12 | 杨国华 | A kind of device and monitoring method of long-range monitoring seepage action of ground water speed |
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Application publication date: 20161207 |