CN214472031U - Automatic high-precision collection preprocessing instrument for pumping test parameter data - Google Patents
Automatic high-precision collection preprocessing instrument for pumping test parameter data Download PDFInfo
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- CN214472031U CN214472031U CN202120529995.6U CN202120529995U CN214472031U CN 214472031 U CN214472031 U CN 214472031U CN 202120529995 U CN202120529995 U CN 202120529995U CN 214472031 U CN214472031 U CN 214472031U
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Abstract
The utility model belongs to the field of hydrogeology reconnaissance, and particularly discloses a pumping test parameter data automatic high-precision acquisition preprocessing instrument, which comprises a filter and a data acquisition unit; a water suction pump is arranged above the filter, the water suction pump and the filter are placed at a aquifer of the pumped underground water, and the liquid level meter is placed below the water surface of the pumped underground water and at the lower part of the water suction pump; one end of the flowmeter is connected with the water pump and is used for measuring the water outlet flow of pumped underground water; the data collector is respectively connected with the flowmeter and the liquid level meter and is used for recording the water outlet flow of the pumped underground water and the data collection frequency change of different stages of the pumped underground water level, and the data collector is electrically connected with the power supply; according to the method, the data acquisition device is adopted to record the data acquisition frequency change of different stages of the test and take the average value in a specific time period, so that the test result is small in data quantity, high in quality precision, high in calculation speed and high in achievement precision.
Description
Technical Field
The application belongs to the field of hydrogeological investigation, in particular to a pumping test parameter data automatic high-precision acquisition preprocessing instrument.
Background
In engineering surveys relating to underground water surveys, such as water source and land surveys, water conservancy and hydropower projects, high-rise building foundation surveys and the like, the existing method for measuring water quantity comprises the following steps: firstly, the height of the water flow of the weir box is manually measured by a steel ruler, and because the water is in a flowing state, the water surface fluctuates, the water surface is not an absolute plane, and the measurement reference is not accurate, the measurement height has low accuracy and also has manual reading errors, and in addition, the weir box is not horizontally arranged and the steel ruler is vertically arranged to cause errors during measurement; secondly, by using the combination calculation of the common mechanical water meter and the timer, because the underground water often contains silt or mixed impurities, the mechanical water meter is easy to block and cannot measure when passing through the water meter, or the measurement precision of the mechanical water meter is reduced due to blocking friction; measuring the water outlet flow of the water pumping hole by using an electromagnetic flowmeter and measuring the underground water level by using a liquid level meter, wherein the experimental data is more, the calculation speed is slow, and the data precision is not high.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a new pre-processing apparatus for automated high-precision collection of pumping test parameter data.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic high accuracy collection preprocessing instrument of experimental parameter data draws water, this preprocessing instrument can make experimental data small in quantity, and the quality precision is high, the quick measurement discharge and the real-time change of water level of drawing water.
2. The utility model provides an automatic high-precision collection preprocessing instrument for pumping test parameter data, which comprises a data collector and a filter;
the data acquisition device comprises a data preprocessing module, a data storage module and a data processing module, wherein the data preprocessing module is used for testing the setting of data acquisition frequency change in different stages and the setting of an average value in a specific time period;
the water suction pump and the filter are placed at a aquifer of pumped underground water, the liquid level sensor is placed below the water surface of the pumped underground water, the lower parts of the water suction pump and the filter are arranged, and the water suction pump is arranged above the filter;
one end of the flow sensor is connected with one end of the water suction pump and is used for measuring the water outflow of pumped underground water;
the data acquisition unit is respectively connected with the flow sensor and the liquid level sensor and is used for recording the water outlet flow of pumped underground water at different stages, the data acquisition frequency change of the water level and the average value in a specific time period;
the data acquisition unit is electrically connected with a power supply;
further, the filter comprises a filter hole, a first-stage filter screen, a second-stage filter screen and an adsorption layer, the diameter of the filter hole is 3-4mm, the filter hole is arranged at the bottom end of the filter, the first-stage filter screen with the leftward inclination of 45-60 degrees is arranged above the filter hole, the second-stage filter screen with the rightward inclination of 45-60 degrees is arranged above the first-stage filter screen, the adsorption layer is arranged above the second-stage filter screen, the upper end of the adsorption layer is parallel to the upper end of the filter, and the upper end of the filter is connected to a water suction pipe at the other end of the water suction pump in a clamping mode.
Furthermore, the flow sensor is an electromagnetic flow sensor, and the other end of the flow sensor is connected with a water flow switch.
Furthermore, the pretreatment instrument also comprises a static balance valve, and the static balance valve is connected with the water flow switch and used for adjusting the water pumping flow.
Furthermore, the data acquisition unit also comprises a flow alarm module, and when the water pumping groundwater outlet flow value recorded by the data acquisition unit is smaller than a preset value, the alarm module triggers the water flow switch to be turned off.
Further, the data acquisition unit is provided with a wireless communication module, and the wireless communication module is connected with a remote monitoring terminal for remote monitoring.
Further, the liquid level sensor is a liquid level meter, and the flow sensor is an electromagnetic flow meter.
Furthermore, the pretreatment instrument also comprises two liquid level meters which are connected with the data acquisition unit and used for observing the adjacent water pumping water level.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the data acquisition device is respectively connected with the flow sensor and the liquid level sensor and is used for recording the water outlet flow of the pumped underground water and the data acquisition frequency change of the pumped underground water level in different stages of the test; the data collector is electrically connected with the power supply. Compared with the prior art, the automatic acquisition preprocessing method that the data acquisition device records the data acquisition frequency change of different stages of the test and takes the average value in a specific time period is adopted, so that the test result not only has small data quantity and high quality precision, but also has high calculation speed and high result precision.
(2) The filter is provided with two stages of filtering and adsorption layers, so that the water outlet pipe is not easy to block, and the measured water flow and water level data are more accurate.
(3) The data acquisition unit is also additionally provided with a flow alarm module, when the flow is instantly changed into a negative number, an alarm signal is sent to trigger the closing of a water flow switch which is connected in series on a water outlet pipe, and the water in the water outlet pipe is prevented from flowing back into a water pumping hole to form a water level recovery error.
(4) The pretreatment instrument is provided with the static balance valve, the static balance valve is installed on the upstream of the flowmeter in series, the pumping flow can be accurately controlled by adjusting the static balance valve, complex equipment for adjusting the flow by controlling the power supply condition of the water pump through a frequency converter can be omitted, and the equipment cost is reduced.
Drawings
The following drawings are merely illustrative of and explanatory of the invention and are not intended to limit the scope of the invention, wherein:
FIG. 1: the utility model has a schematic structure;
FIG. 2: the structure of the filter is schematic;
in the figure: 1-a water pump, 2-a data collector, 3-a power supply, 4-a static balance valve, 5-a water flow switch, 6-a liquid level meter, 7-an electromagnetic flowmeter and 8-a filter.
Detailed Description
In order to make the objects, technical solutions, design methods, and advantages of the present invention more clear, the present invention will be further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the utility model provides an automatic high-precision collection preprocessing instrument for parameter data of a pumping test, which comprises a data collector 2 and a filter 8; the data acquisition unit 2 comprises a data preprocessing module for testing the setting of data acquisition frequency change in different stages and the setting of an average value in a specific time period;
the water suction pump 1 and the filter 8 are placed at a aquifer of pumped underground water, the liquid level sensor is placed below the water surface of the pumped underground water, the lower parts of the water suction pump 1 and the filter 8 are provided, and the water suction pump 1 is arranged above the filter 8; one end of the flow sensor is connected with one end of the water suction pump and is used for measuring the water outflow of pumped underground water; the data acquisition unit 2 is respectively connected with the flow sensor and the liquid level sensor and is used for recording the water outlet flow of pumped underground water at different stages, the data acquisition frequency change of water level and the average value in a specific time period; the data acquisition unit 2 is electrically connected with the power supply 3; the data collector 2 comprises a data preprocessing module, the data collection frequency change in different time periods can be realized through the collection frequency setting of each phase data collector, the quantity of high-frequency collected data is effectively reduced, and meanwhile, on the basis of the different collection frequency setting of each phase data collector, the average value (non-real-time value) of data per second in a specific collection time period is set to automatically collect, so that the hysteresis characteristic of actual data is better met, short-time fluctuation and transient errors caused by accidental changes are overcome, the data quantity of a test result is small, and the quality precision is high;
further, the filter 8 comprises a filtering hole 20, a first-stage filter screen 21, a second-stage filter screen 55 and an adsorption layer 23, the diameter of the filtering hole 20 is 3-4mm, the filtering hole is arranged at the bottom end of the filter 8, the first-stage filter screen 21 with a right inclination of 45-60 degrees is arranged above the filtering hole 20, the second-stage filter screen 22 with a left inclination of 45-60 degrees is arranged above the first-stage filter screen 21, the adsorption layer 23 is arranged above the second-stage filter screen 22, the upper end of the adsorption layer 23 is flush with the upper end of the filter 8, and the upper end of the filter 8 is clamped on a water pumping pipe at the other end of the water pumping pump 1;
further, the flow sensor is an electromagnetic flow sensor, and the other end of the flow sensor is connected with a water flow switch 5;
further, the pretreatment instrument further comprises a static balance valve 4, wherein the static balance valve 4 is connected with the water flow switch 5 and used for adjusting the water pumping flow.
Further, the data collector 2 further comprises a flow alarm module, and when the pumped groundwater outlet flow value recorded by the data collector 2 is smaller than a preset value, the alarm module triggers the water flow switch 5 to be closed;
further, the data acquisition unit 2 is provided with a wireless communication module, and the wireless communication module is connected with a remote monitoring terminal for remote monitoring;
further, the liquid level sensor is a liquid level meter 6, and the flow sensor is an electromagnetic flow meter 7;
furthermore, the pretreatment instrument also comprises two liquid level meters 6 which are connected with the data acquisition unit 2 and used for observing the adjacent water pumping water levels;
the filter comprises filter holes 20, a primary filter screen 21, a secondary filter screen 22 and an adsorption layer 23, the filter 8 is arranged below the water suction pump 1, sand and stone particles are filtered out through the secondary filter screen, and then the sand and stone particles are filtered again through the adsorption layer, so that the water pipe is not easy to block, and the water level and flow measurement are more accurate;
the water outlet flow of pumped groundwater is measured by the electromagnetic flowmeter 7, the output signal is instantaneous flow, the automatic recording time interval can reach 1s, and the data density is greatly improved compared with manual recording;
the water pumping underground water level is measured by adopting the liquid level meter 6, the principle is that the water column pressure is converted into the water column height, the measurement error of the inclined manual measuring rope of the drill hole is effectively overcome, the automatic recording time interval can reach 1s, and the data density is greatly improved compared with the manual recording; the principle of the level gauge 6 is that a pressure element is arranged at the bottom thereof, the pressure element is used for measuring the pressure of a measuring point, and the change of the height of the measured water level is calculated according to a pressure formula. The water pump 1 is placed at a designated aquifer, the level gauge is placed below the water surface, and the two are separated by a certain distance at the lower part of the water pump 1. The liquid level meter 6 is arranged at the lower part of the water suction pump 1; the electromagnetic flow meter 7 can measure the water flow rate in each cycle.
The data of the electromagnetic flowmeter 7 and the data of the liquid level meter 6 are collected in a centralized way, the time is completely synchronous and corresponding, the USB interface can be digitally exported in one step or in stages, and the method is convenient and quick;
the data collector 2 is additionally provided with a flow alarm function, when the flow is instantly changed into a negative number, an alarm signal is sent out to trigger the closing of a water flow switch 5 which is connected in series on a water outlet pipe, and the water in the water outlet pipe is prevented from flowing back to the pumped water to form a water level recovery error;
the electromagnetic flowmeter 7 is also connected with a static balance valve 4 which can accurately control the pumping flow by adjusting, so that complex equipment for adjusting the flow by controlling the power supply condition of a water pump through a frequency converter can be omitted, and the equipment cost is reduced; or water return to the water pumping hole through a three-way valve can be omitted, so that the water level measurement of the water pumping hole is not influenced;
the data acquisition unit is provided with a wireless communication module, and the wireless communication module is connected with a remote monitoring terminal for remote monitoring;
the power supply condition of the data acquisition device and the liquid level meter can be switched to DC24V, the power supply condition of the storage battery after the power supply of the generator is stopped is met, and the long-time underground water level recovery in the field is met.
The water suction pump 1 is arranged on the liquid level sensor, the water suction pump 1 and the water pump are separated by a certain distance, the flow sensor is connected with a water outlet pipe of the water suction pump 1 and the water flow switch 5, when a water suction test is carried out, the water suction pump 1 is started, the water suction underground water liquid level sensor and the water pump water outlet flow sensor are started simultaneously, the data acquisition unit 2 can automatically acquire the water level and water quantity data acquisition frequency of each stage and the average value of the water level and the water quantity of each second in a specific acquisition time period, so that the test result is small in data quantity and high in quality precision, the calculation speed is high, and the result precision is high.
The utility model provides an automatic high accuracy collection preprocessing instrument of pumping test parameter data simple structure, low in cost, easily operation is fit for various groundwater test parameter test work, compares with conventional underground pumping test device, and it passes through data acquisition unit in experimental different stages through data acquisition frequency variation and gets the automatic acquisition preprocessing method of average value in the specific time quantum, makes the test result not only data small in quantity, and the quality precision is high, and the calculating speed is fast moreover, the achievement precision is high.
The utility model overcomes the defect that traditional experimental parameter precision is not high, and test data is many adopts the automatic acquisition preprocessing method of the experimental different stages of data acquisition frequency variation of 2 record and average values in the specific time quantum of data collection, makes the test result not only data small in quantity, and the quality precision is high, and the computational rate is fast moreover, the achievement precision is high.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (8)
1. The utility model provides an automatic high accuracy acquisition of experimental parameter data of drawing water preprocessing instrument, includes suction pump (1), level sensor and flow sensor, its characterized in that: a data collector (2) and a filter (8);
the data acquisition unit (2) comprises a data preprocessing module, a data processing module and a data processing module, wherein the data preprocessing module is used for testing the setting of data acquisition frequency change in different stages and the setting of an average value in a specific time period;
the water suction pump (1) and the filter (8) are placed at a aquifer of pumped underground water, the liquid level sensor is placed below the water surface of the pumped underground water, the lower parts of the water suction pump (1) and the filter (8) are provided, and the water suction pump (1) is arranged above the filter (8);
one end of the flow sensor is connected with one end of the water suction pump and is used for measuring the water outflow of pumped underground water;
the data acquisition unit (2) is respectively connected with the flow sensor and the liquid level sensor and is used for recording the effluent flow of pumped underground water at different stages, the data acquisition frequency change of water level and the average value in a specific time period;
the data collector (2) is electrically connected with the power supply (3).
2. The automatic high-precision collection pretreatment instrument for the water pumping test parameter data according to claim 1, wherein the filter (8) comprises a filtering hole (20), a primary filter screen (21), a secondary filter screen (22) and an adsorption layer (23), the diameter of the filtering hole (20) is 3-4mm, the diameter of the filtering hole is arranged at the bottom end of the filter (8), the primary filter screen (21) with the leftward inclination of 45-60 degrees is arranged above the filtering hole (20), the secondary filter screen (22) with the rightward inclination of 45-60 degrees is arranged above the primary filter screen (21), the adsorption layer (23) is arranged above the secondary filter screen (22), the upper end of the adsorption layer (23) is flush with the upper end of the filter (8), and the upper end of the filter (8) is clamped on a water pumping pipe at the other end of the water pumping pump (1).
3. The automatic high-precision collection and pretreatment instrument for the parameter data of the water pumping test according to claim 1, wherein the flow sensor is an electromagnetic flow sensor, and a water flow switch (5) is connected to the other end of the flow sensor.
4. The automatic high-precision collection preprocessing instrument for parameter data of water pumping test according to claim 3, characterized in that the preprocessing instrument further comprises a static balance valve (4), and the static balance valve (4) is connected with the water flow switch (5) for adjusting the water pumping flow.
5. The automatic high-precision collection and pretreatment instrument for the pumping test parameter data according to claim 4, characterized in that the data collector (2) further comprises a flow alarm module, and when the pumping groundwater outlet flow value recorded by the data collector (2) is smaller than a preset value, the alarm module triggers the water flow switch (5) to be turned off.
6. The automatic high-precision collection and pretreatment instrument for the parameter data of the pumping test according to claim 5, wherein the data collector (2) is provided with a wireless communication module, and the wireless communication module is connected with a remote monitoring terminal for remote monitoring.
7. The automatic high-precision collection preprocessing instrument for parameter data of the water pumping test according to claim 6, characterized in that the liquid level sensor is a liquid level meter (6) and the flow sensor is an electromagnetic flow meter (7).
8. The automated high-precision collection pre-processing instrument for parameter data of a water pumping test according to claim 7, wherein: the pretreatment instrument further comprises two liquid level meters (6) which are connected with the data acquisition unit (2) and used for observing the adjacent water pumping levels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120529995.6U CN214472031U (en) | 2021-03-15 | 2021-03-15 | Automatic high-precision collection preprocessing instrument for pumping test parameter data |
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| CN202120529995.6U CN214472031U (en) | 2021-03-15 | 2021-03-15 | Automatic high-precision collection preprocessing instrument for pumping test parameter data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514161A (en) * | 2023-12-20 | 2024-02-06 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Flow regulating device for pumping test of low-flow well in water-poor area |
-
2021
- 2021-03-15 CN CN202120529995.6U patent/CN214472031U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514161A (en) * | 2023-12-20 | 2024-02-06 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Flow regulating device for pumping test of low-flow well in water-poor area |
| CN117514161B (en) * | 2023-12-20 | 2024-06-04 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Flow regulating device for pumping test of low-flow well in water-poor area |
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