CN211291642U - Hydrogeology test system that draws water - Google Patents
Hydrogeology test system that draws water Download PDFInfo
- Publication number
- CN211291642U CN211291642U CN201921877065.9U CN201921877065U CN211291642U CN 211291642 U CN211291642 U CN 211291642U CN 201921877065 U CN201921877065 U CN 201921877065U CN 211291642 U CN211291642 U CN 211291642U
- Authority
- CN
- China
- Prior art keywords
- water
- flow
- pumping
- computer processing
- pressure sensor
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a hydrogeology pumping test system, a water level measuring system comprises a water pressure sensor and a measuring rope with scales; the water pressure sensor is arranged at the bottom of the measuring rope with the scales; the water pressure sensor is connected with the computer processing system; the pumping test flow control system comprises a submersible pump; the submersible pump is connected with a water pumping pipe, and the water pumping pipe is connected with a water outlet pipe; the water outlet pipe is provided with a flow sensor, the water outlet pipe is also connected with a water return pipe through a three-way flow control valve, and the flow sensor is connected with a computer processing system through a monitoring transmission line. The utility model discloses the system is through flow control system regulation flow of drawing water, through the downthehole water level variation of water level survey system survey to be connected with computer processing control unit, to the required water level of hydrogeology pump test and flow parameter real time control and analysis demonstration, reduce artificial random error, realize convenient, swift, accurate field pump test.
Description
Technical Field
The utility model relates to a hydrogeology test system that draws water belongs to groundwater engineering technical investigation field.
Background
The pumping test is a common in-situ test method which is widely applied to the fields of hydrogeology, engineering geology and environmental geology and is used for finding out hydrogeological features of deep rocks and soil layers and obtaining various hydrogeological parameters of aquifers, and provides technical support for water finding well drilling, water resource exploitation schemes, foundation pit precipitation design, pollutant diffusion and the like. The pumping test is generally carried out in the field, the working environment condition is complex, the pumping period is long, manual depth measurement and flow measurement are often adopted, the whole pumping test efficiency is low, time and labor are wasted, and the probability of large human error is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the various defects in the current hydrogeology test of drawing water, realize automatic, real-time, convenient, swift drilling, well test system that draws water, ensure the convenience and the accuracy of the test of drawing water.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
the hydrogeology pumping test system comprises a computer processing system, a water level measuring system and a pumping test flow control system;
the water level measuring system comprises a water pressure sensor and a measuring rope with scales; the water pressure sensor is arranged at the bottom of the measuring rope with scales; the water pressure sensor is connected with the computer processing system and inputs the measured water pressure into the computer processing system; the pumping test flow control system comprises a submersible pump; the submersible pump is connected with a water pumping pipe, and the water pumping pipe is connected with a water outlet pipe; the water outlet pipe is provided with a flow sensor, the water outlet pipe is also connected with a water return pipe through a three-way flow control valve, the flow sensor is connected with a computer processing system through a monitoring transmission line, and the flow is input into the computer processing system.
The water pressure sensor is arranged at a position higher than the top of the submersible pump.
The water pressure of the position of the probe is measured through the water pressure sensor probe, the water depth of the position of the probe is obtained through (intelligent) back calculation, the real-time water level of the position of the probe is calculated through the measuring rope, and the pump dropping of the submersible pump during pumping can be avoided through the water pressure sensor. Meanwhile, the flow value during the pumping test is measured in real time by a water flow sensor connected to the front end of a water outlet pipe of the submersible pump. Through this novel test system, can convenient, swift measure hydrogeology and draw water required water level, the flow parameter of experiment. The convenience of observation, record and operation of field water pumping test is improved.
The utility model discloses the beneficial effect who gains:
the utility model discloses the system utilizes the immersible pump to develop the test of drawing water to open-air experimental drilling of drawing water, adjusts the flow of drawing water through flow control system, through the downthehole water level variation of water level determination system survey to be connected with computer processing control unit, to the required water level of hydrogeology test of drawing water and flow parameter real time control and analysis display, reduce artificial random error, realize convenient, swift, accurate open-air test of drawing water.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The specific technical solution of the present invention will be described with reference to the embodiments.
As shown in fig. 1, the hydrogeological pumping test system comprises a computer processing system 1, a water level measuring system and a pumping test flow control system;
the water level measuring system comprises a water pressure sensor 9 and a measuring rope 10 with scales; the water pressure sensor 9 is arranged at the bottom of the measuring rope 10 with scales; the water pressure sensor 9 is connected with the computer processing system 1, and the measured water pressure is input into the computer processing system 1; the pumping test flow control system comprises a submersible pump 8; the submersible pump 8 is connected with a water pumping pipe 7, and the water pumping pipe 7 is connected with a water outlet pipe 11; the water outlet pipe 11 is provided with a flow sensor 3, the water outlet pipe 11 is also connected with a water return pipe 5 through a three-way flow control valve 4, the flow sensor 3 is connected with the computer processing system 1 through a monitoring transmission line 2, and the flow is input into the computer processing system 1;
the water pressure sensor 9 is arranged at a position higher than the top of the submersible pump 8.
There is the operational environment condition complicacy and artifical data collection random error big in the on-the-spot test of drawing water, the utility model discloses possess two parameters of automatic acquisition water level and flow, accessible flow control system adjusts the flow, can acquire a plurality of depths of fall test parameters of drawing water, and show through computer processing system real-time analysis and gather test data.
Before the water pumping test is started, the water pressure sensor 9 is placed at the top of the submersible pump 8 after the hole drilling and hole washing are stabilized by the water level, so that the pump falling during water pumping and depth reduction can be avoided, and the initial water level H (t) is measured0)。
At the start of the test, the submersible pump 8 begins pumping water. Water flows through the flow sensor 3 and is discharged from the water outlet pipe 11, the flow control three-way valve 4 is adjusted, and the water flow returning into the drilled hole through the water return pipe 5 is controlled so as to control the water flow flowing through the flow sensor 3.
The pressure p (t) at the sensor is monitored in real time by the water pressure sensor 9 during the pumping test. The pressure measured by the underwater pressure sensor is the hydrostatic pressure P formed by the height h of the water column above the measuring pointQuietAtmospheric pressure P with water surfaceQi (Qi)And (4) summing. And P isQuietRelated to the pumping time by measuring PQuiet(t) the real-time change h (t) of the height of the water column above the measuring point along with the time can be calculated reversely.
By P (t) ═ PQuiet(t)+PQi (Qi)＝ρgh(t)+PQi (Qi)It is known that the water column height h (t) ═ P (t) — P over time at the measurement pointQi (Qi)]Rho g, wherein P (t) is the real-time pressure measured by the sensor, and rho is the density of water and is a constant; g is the acceleration of gravity, a constant; pQi (Qi)Atmospheric pressure, constant.
The water pressure sensor 9 is placed at the bottom of the measuring rope 10 with the scale, the scale H at the well mouth of the measuring rope 10 with the scale is recorded, the real-time water level data H (t) H-H (t) required by the test at the measuring point is obtained, and the water level data is displayed in the computer control system 1 in real time through a transmission control line. Water level lowering Sw＝H(t1)-H(t0)。
When the water level H (t1) tends to be stable, the flow is displayed in the computer control system 1 in real time through the transmission control line corresponding to a stable water flow Q1.
The water outlet pipe 11 for water flow outflow and the water return pipe 5 for water flow backflow are adjusted through the three-way flow control valve 4, the purpose of water outflow control is achieved, and the submersible pump 8 can be prevented from dropping due to the fact that the arranged water pressure sensor 9 is arranged at the top of the submersible pump 8, and data displayed by the water pressure sensor can be used.
When the water level H (t)2) After the water flow rate reaches the stable value, the water flow rate is displayed in the computer control system 1 in real time through the transmission control line corresponding to the stable water flow rate Q2.
According to the pumping test process, S can be obtained in real timewThe t-curve, the Q-S curve, and the Q-S curve per unit flow rate. And calculating hydrogeological parameters such as permeability coefficient of rock and soil layers by corresponding formulas.
Claims (2)
1. The hydrogeology water pumping test system is characterized by comprising a computer processing system, a water level measuring system and a water pumping test flow control system;
the water level measuring system comprises a water pressure sensor and a measuring rope with scales; the water pressure sensor is arranged at the bottom of the measuring rope with scales; the water pressure sensor is connected with the computer processing system and inputs the measured water pressure into the computer processing system; the pumping test flow control system comprises a submersible pump; the submersible pump is connected with a water pumping pipe, and the water pumping pipe is connected with a water outlet pipe; the water outlet pipe is provided with a flow sensor, the water outlet pipe is also connected with a water return pipe through a three-way flow control valve, the flow sensor is connected with a computer processing system through a monitoring transmission line, and the flow is input into the computer processing system.
2. The hydrogeological pumping testing system according to claim 1, wherein the water pressure sensor is positioned higher than the top of the submersible pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921877065.9U CN211291642U (en) | 2019-11-04 | 2019-11-04 | Hydrogeology test system that draws water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921877065.9U CN211291642U (en) | 2019-11-04 | 2019-11-04 | Hydrogeology test system that draws water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291642U true CN211291642U (en) | 2020-08-18 |
Family
ID=72020455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921877065.9U Expired - Fee Related CN211291642U (en) | 2019-11-04 | 2019-11-04 | Hydrogeology test system that draws water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074121A (en) * | 2021-04-22 | 2021-07-06 | 华工(江门)机电有限公司 | Using method of submersible pump and detection method of underground water distribution |
-
2019
- 2019-11-04 CN CN201921877065.9U patent/CN211291642U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074121A (en) * | 2021-04-22 | 2021-07-06 | 华工(江门)机电有限公司 | Using method of submersible pump and detection method of underground water distribution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bouwer et al. | Determining soil properties | |
| US8825430B2 (en) | Differential pressure systems and methods for measuring hydraulic parameters across surface water-aquifer interfaces | |
| Amoozegar et al. | Methods for measuring hydraulic conductivity and drainable porosity | |
| Neuman | On methods of determining specific yield | |
| Boersma | Field measurement of hydraulic conductivity below a water table | |
| CN201187297Y (en) | Apparatus for measuring permeability coefficient | |
| CN106324226A (en) | Pouring and injection integrated indoor testing device and method for monitoring underground water seepage and precipitation | |
| Turner et al. | Groundwater fluxes and flow paths within coastal barriers: Observations from a large-scale laboratory experiment (BARDEX II) | |
| CN110929390B (en) | Numerical simulation detection method based on groundwater hydrogeology test | |
| CN211291642U (en) | Hydrogeology test system that draws water | |
| CN106248548B (en) | Aeration zone drilling constant head water injection test saturation permeability coefficient test method | |
| CN104297129A (en) | Hydrogeologic testing method based on water injection free vibration method | |
| CN110824191A (en) | Layered velocity meter | |
| WO2020062834A1 (en) | Volume measurement system and method for closed water-filled karst cave | |
| CN202330235U (en) | Steady flow pumping test equipment for online full-hole continuous detection | |
| CN110208497A (en) | A kind of portable soil specific yield tester and test method | |
| CN102435540A (en) | Measurement system and method for permeability coefficient of shallow-layer sand soil | |
| CN111398132B (en) | Permeability coefficient in-situ intelligent measuring device used in cooperation with water pump | |
| CN110346247B (en) | Mesoscale test determination method for bottom mud salt diffusion coefficient of hydraulic reclamation area | |
| CN114839228A (en) | High accuracy soil salinity survey device | |
| CN107449711A (en) | A kind of measurement apparatus and its method of aquifer with low permeability infiltration coefficient parameter | |
| CN204177712U (en) | A kind of earth's surface, slope, field double-ring infiltration instrument | |
| Moniruzzaman et al. | Experimental study on water balance in a negative pressure difference irrigation system | |
| CN113218445A (en) | Method for monitoring foundation pit of constructional engineering | |
| CN104615900A (en) | Quantitative calculation method for underground-water nutrient salt discharged into lake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211104 |