CN117824738B - Water and soil conservation monitoring equipment calibrating device and application method thereof - Google Patents
Water and soil conservation monitoring equipment calibrating device and application method thereof Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 197
- 239000002689 soil Substances 0.000 title claims abstract description 62
- 238000012544 monitoring process Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000013049 sediment Substances 0.000 claims abstract description 276
- 238000003756 stirring Methods 0.000 claims abstract description 133
- 239000004576 sand Substances 0.000 claims abstract description 70
- 238000005303 weighing Methods 0.000 claims abstract description 62
- 238000012795 verification Methods 0.000 claims abstract description 12
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 45
- 238000005259 measurement Methods 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000001052 transient effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention is applicable to the technical field of environmental monitoring, and provides a calibrating device for water and soil conservation monitoring equipment, which comprises a sediment stirring platform, wherein a sediment stirring barrel is penetrated in the sediment stirring platform, one side of the sediment stirring barrel is provided with a cleaning device, a weighing type quantitative sand feeder is arranged above the cleaning device, and inspected equipment is arranged below the sediment stirring barrel; the use method of the water and soil conservation monitoring equipment calibrating device is characterized in that a sediment water sample in a sediment stirring barrel is utilized to simulate a real-time environment when water and soil flows, so that the calibration of the equipment to be detected is realized; therefore, under the control of parameters such as simulated standardized sediment, the invention conveniently and rapidly realizes verification of the water and soil conservation monitoring equipment, ensures that the monitoring equipment in the range near water and soil loss can work normally, and has wide application range and high calculation efficiency.
Description
Technical Field
The invention relates to the technical field of environmental monitoring, in particular to a water and soil conservation monitoring equipment calibrating device and a using method thereof.
Background
The water and soil conservation is an important content of ecological civilization construction, and by means of water and soil conservation monitoring, the water and soil loss type, the strength and the distribution characteristics, the harm and the influence condition thereof, the occurrence and development rule and the dynamic change trend are obtained, so that the method has important significance for comprehensive water and soil loss treatment, macroscopic decision of ecological environment construction, and scientific, reasonable and systematic arrangement of various measures of water and soil conservation. Therefore, the quality and stability of the ecological system are improved, the comprehensive water and soil loss treatment is scientifically promoted, the ecological system protection effect monitoring and evaluation and other tasks are carried out, the metering management work of the water and soil conservation monitoring equipment is urgently needed to be carried out, the quality of first-hand water and soil conservation observation data is ensured, the water and soil conservation monitoring level is improved, and a reliable basis is provided for objectively and accurately reflecting the water and soil loss condition and the ecological system quality.
At present, in the fields near water and soil loss and downstream thereof, a plurality of water and soil loss monitoring devices are built, such as a raindrop spectrometer, an open channel weir trough flowmeter, a portable sediment measuring instrument, a runoff sediment automatic monitor and the like for water and soil erosion observation, wind erosion bridges, wind erosion automatic monitors and the like for wind erosion observation, and the devices at the positions need to be provided with a power supply cabinet, a signal station and the like at the same time, so that verification under the state of simulating water and soil loss is required to be carried out on a plurality of devices such as monitoring devices in the range.
In addition, the verification of the current water and soil conservation monitoring equipment has a plurality of links which need to be manually operated according to the current calibration standard, the working process is very complicated, the working efficiency is low, and human errors are easy to cause. Therefore, the device for calibrating the water and soil conservation monitoring equipment and the use method thereof are designed, the sediment water sample is simulated through the device, the automatic calibration of the water and soil conservation monitoring equipment is realized, the uncertain factors caused by manual operation are avoided, and the device has very important significance.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a water and soil conservation monitoring equipment calibrating device and a using method thereof, which can conveniently and rapidly realize the calibrating process of the water and soil conservation monitoring equipment under the control of parameters such as standardized runoff sediment and the like.
In order to achieve the above purpose, the invention provides a calibrating device for water and soil conservation monitoring equipment, which comprises a standard sediment sample configuration area, wherein a sediment stirring platform is arranged on the standard sediment sample configuration area, a sediment stirring barrel is arranged in the sediment stirring platform in a penetrating way, one side of the sediment stirring barrel is provided with a cleaning device, and a weighing type quantitative sediment feeder is arranged above the cleaning device.
The soil sample throwing device is characterized in that a soil sample throwing port is formed in the sediment stirring barrel, a speed regulation stirring device is arranged above the sediment stirring barrel, a high-precision flowmeter is arranged between the speed regulation stirring device and the sediment stirring barrel, inspected equipment is arranged below the sediment stirring barrel, the inspected equipment is arranged on a test bench, and the test bench is located below the sediment stirring platform.
The sediment water sample injection pipe between the sediment stirring barrel and the detected equipment is provided with an electric control flow regulating valve, the lower part of the detected equipment is provided with a sample circulating water tank, a stirring circulating pump is arranged in the sample circulating water tank, one end of a sample return water pipeline is connected to the stirring circulating pump, the other end of the sample return water pipeline is connected to the sediment stirring barrel, and the sample return water pipeline is provided with a return water regulating valve.
Be equipped with the frame on the silt stirring platform, be equipped with electric lift guide rail and electric lift platform in the frame, be equipped with agitator motor on the electric lift platform, agitator motor connects the puddler, the puddler wears to locate in the silt agitator, be equipped with a plurality of high-efficient silt stirring rake on the puddler.
According to the calibrating device for the soil and water conservation monitoring equipment, one side of the sediment stirring platform is provided with the immersed sediment detection platform, one side of the test bench is provided with the injection sediment detection platform, and the immersed sediment detection platform is provided with the photoelectric sediment detection sensor.
According to the calibrating device for the soil and water conservation monitoring equipment, when the photoelectric sediment detection sensor detects, the photoelectric sediment detection sensor is placed in the sediment stirring barrel, sediment water samples in the sediment stirring barrel are detected, when the injection type sediment detection table is used for detection, the sediment water samples are placed below the sediment stirring barrel, and the sediment water samples are injected into the device to be detected through the sediment water sample injection pipe, so that the sediment water samples are detected.
According to the calibrating device for the soil and water conservation monitoring equipment, the sand collecting and draining unit is arranged behind the standard sediment sample configuration area and comprises a sand collecting and draining groove which is arranged below the equipment to be detected and used for receiving sediment samples flowing out of the equipment to be detected.
The application method of the water and soil conservation monitoring equipment calibrating device comprises the following steps.
Step 1, a main control platform formulates sediment water samples of different grades, obtains sediment quantity and water distribution data required by each grade, and determines the volume of a sediment stirring barrel according to the volume of the sediment water samples.
Step 2, stirring in a sediment stirring barrel to realize the dissolution of sediment and water into a sediment water sample, and weighing the sediment water sample by a water sample weighing platform on the sediment stirring platform and calculating the sediment content value of the sediment water sample.
And 3, correcting the sediment stirring platform according to the sand content value and the weight of dry matters input by the weighing type quantitative sand feeder.
And 4, selecting an immersed sediment detection table or an injection sediment detection table for detection according to the detected equipment, determining the weights of the immersed sediment detection table or the injection sediment detection table according to the measurement precision of the water sample weighing platform and the weighing type quantitative sand feeder, and obtaining the more accurate sand content of the water sample by using a weighted average method.
And 5, after multiple measurements are carried out, obtaining an average value which is the average sand content of the measured device.
According to the use method of the calibrating device for the soil and water conservation monitoring equipment, the mass of water flowing into the sediment stirring barrel is measured through the high-precision flowmeter, and the volume measured by the high-precision flowmeter is set asThe mass of this partial volume of water is set to/>Then there is/>The water sample weighing platform is used for weighing the total weight of the sediment water samples in the sediment stirring barrel and setting the total weight as/>Calculating the total mass of sediment in the sediment water sample, and setting the mass as/>Is marked as/>。
According to the application method of the water and soil conservation monitoring equipment calibrating device provided by the invention, the mass of sediment which is weighed by the sand throwing device and put into the stirrer is set asThe weight determined by the measurement precision of the sand throwing device is A, the weight determined by the measurement precision of the sediment water sample weighing device is B, and the final total sediment mass/>The sediment content/>, per unit volume, of the sediment water sample。
According to the application method of the water and soil conservation monitoring equipment calibrating device, the secondary sand content value measurement result is set asThe traditional sample mean value calculation formula is: /(I)，
The average of the first n-1 samples is:，
is available in the form of ，
Thereby making it，/>The final verification result is obtained.
According to the application method of the water and soil conservation monitoring equipment calibrating device, the structures such as the sediment stirring barrel are used for simulating scene data when the river flow speed is accelerated and the sediment content changes obviously in a transient or short time, the stirring motor continuously stirs sediment sample water in the sediment stirring barrel, the main control platform controls the flow regulating valve and the weighing type quantitative sand throwing device to enable the sediment content and the water flow speed of the sediment sample water in the sediment stirring barrel to continuously change, the central control platform controls the water outlet valve arranged in the sediment stirring barrel to enable the volume of the sediment sample water in the sediment stirring barrel to continuously change in detection time to achieve dynamic characteristics when simulating the occurrence of storm of river water, and the main control platform obtains actual average sediment content by recording the total sediment amount and the total water amount of the sediment entering the stirring barrel in the whole time period and compares the actual average sediment content with the detection result of the detection device to complete the verification of the water and soil conservation device of the scene.
The invention provides a calibrating device for water and soil conservation monitoring equipment, which has the beneficial effects that: the sediment stirring barrel can be matched with different volumes, sediment water samples of different grades are prepared by controlling the water quantity and the sediment dry matter quantity, the detected equipment is used for detecting relevant performance requirements through the sediment water samples, wherein the water quantity is controlled through a high-precision flowmeter and a flow regulating valve, the sediment dry matter is controlled through a control weighing type quantitative sand throwing device and a weighing platform, and finally, the sediment dry matter and water in the barrel are fully dissolved and uniform in the stirring barrel by utilizing a stirring motor, the sediment stirring barrel and a stirring control console.
The invention also provides a use method of the calibrating device for the soil and water conservation monitoring equipment, which has the beneficial effects that the high-precision sensor arranged on the weighing platform can directly weigh and measure the sediment water sample in the stirring barrel to obtain the sand content value, and correct the dry matter weight input by the weighing type quantitative sand feeder, thereby reducing errors and conveniently and rapidly realizing the detection of the soil and water conservation monitoring equipment under the control of parameters such as standardized runoff sediment and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention; FIG. 2 is a schematic diagram of the structure of a sediment stirring barrel; FIG. 3 is a schematic view of the structure of the immersed sediment inspection table; FIG. 4 is a flow chart of a device under test detection process; FIG. 5 is a flow chart of a calibration process; in the figure: 1-sediment stirring platform, 2-sediment stirring barrel, 21-soil sample throwing port, 23-high precision flowmeter, 24-sediment water sample injection pipe, 25-electric control flow regulating valve, 3-cleaning device, 4-weighing type quantitative sand throwing device, 5-inspected equipment, 6-test bench, 7-sample circulating water tank, 71-stirring circulating pump, 72-sample return water pipeline, 73-return water regulating valve, 8-rack, 81-electric lifting guide rail, 82-electric lifting platform, 9-stirring motor, 91-stirring rod, 92-high efficiency sediment stirring paddle, 10-immersed sediment detection bench, 11-injected sediment detection bench and 12-sand collecting drainage tank.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1-3, the invention provides a soil and water conservation monitoring equipment calibrating device, which comprises a standard sediment sample configuration area, wherein the standard sediment sample configuration area is provided with a sediment stirring platform 1, a sediment stirring barrel 2 is penetrated in the sediment stirring platform 1, one side of the sediment stirring barrel 2 is provided with a cleaning device 3, a weighing type quantitative sand throwing device 4 is arranged above the cleaning device 3, a soil sample throwing port 21 is arranged on the sediment stirring barrel 2, dry matters (namely dry sand) are introduced into the sediment stirring barrel 2 from the weighing type quantitative sand throwing device 4 along the soil sample throwing port 21, a speed regulation stirring device is arranged above the sediment stirring barrel 2, a high-precision flowmeter 23 is arranged between the speed regulation stirring device and the sediment stirring barrel 2, inspected equipment 5 is arranged below the sediment stirring barrel 2, the inspected equipment 5 is arranged on a test bench 6, the test bench 6 is located the below of silt stirring platform 1, is equipped with automatically controlled flow control valve 25 on silt water sample injection pipe 24 between silt agitator 2 and the equipment 5 that is examined, is equipped with sample circulation water tank 7 by the below of equipment 5 that is examined, be equipped with stirring circulation pump 71 in the sample circulation water tank 7, be connected with the one end of sample return water pipeline 72 on the stirring circulation pump 71, the other end of sample return water pipeline 72 is connected to silt agitator 2, be equipped with the return water governing valve 73 on the sample return water pipeline 72, be equipped with frame 8 on the silt stirring platform 1, be equipped with electric lift guide 81 and electric lift platform 82 on the frame 8, be equipped with agitator motor 9 on the electric lift platform 82, agitator motor 9 connects puddler 91, and puddler 91 wears to locate in the silt agitator 2, is equipped with a plurality of high-efficient silt stirring paddles 92 on the puddler 91.
Referring to fig. 2 and 3, one side of the sediment stirring platform 1 is provided with an immersed sediment detection table 10, one side of the test bench 6 is provided with an injected sediment detection table 11, the immersed sediment detection table 10 is provided with a photoelectric sediment detection sensor, when the photoelectric sediment detection sensor detects, the sensor needs to be placed into the sediment stirring barrel 2 to detect a sediment water sample, the sediment water sample is placed below the sediment stirring barrel 2 when the injected sediment detection table 11 detects, the sediment water sample is injected into a detected device through a sediment water sample injection pipe 24 to detect the sediment water sample, and the immersed sediment detection table 10 and the injected sediment detection table 11 are used for detecting sediment in different modes.
Further, the rear of the standard sediment sample configuration area is provided with a sediment collecting and draining unit, the sediment collecting and draining unit comprises a sediment collecting and draining groove 12, the sediment collecting and draining groove 12 is arranged below the inspected equipment 5 and used for receiving sediment water samples flowing out of the inspected equipment 5, the drained sediment water is slowly precipitated and filtered through the sediment collecting and draining groove 12, waste sand is collected in a filter screen to be convenient to clean and repeatedly use, a test bench 6 matched with the sediment collecting and draining is arranged after sediment collecting and draining, and the test bench 6 is convenient to place and move a test operation table of the inspected equipment 5.
Furthermore, after each detection, the flushing device is started to flush the silt stirring barrel 2 and other devices, so that the next detection is facilitated.
Furthermore, when the weighing type quantitative sand feeder 4 works, dry sand is quantitatively weighed and then put into the sediment mixing drum 2, one measurement of the sand content value in a sediment water sample to be measured is performed, and the measured weight value is used for measuring the precision of the equipment 5 to be detected.
Furthermore, the sediment mixing drum 2 can be used with different volumes, the sediment mixing platform 1 is provided with a high-precision weight sensor, and the sediment water sample in the mixing drum can be weighed and measured to obtain a sand content value, and the sand content value is corrected with the weight of dry sand input by the weighing type quantitative sand feeder 4, so that the error is reduced.
Further, the detected device 5 of the present invention obtains a corresponding verification conclusion after comparing the measurement result with the set sediment value, and discharges the water containing the sediment sample into the sediment receiving and draining tank 12, so as to recycle the sediment, and finally, the flushing device is opened to flush the whole device, so as to prepare the next measurement.
Referring to fig. 4 and 5, the invention provides a using method of a water and soil conservation monitoring equipment calibrating device, which comprises the following steps.
Step 1, a main control platform formulates sediment water samples of different grades, obtains sediment quantity and water distribution data required by each grade, and determines the volume of a sediment stirring barrel 2 according to the volume of the sediment water samples.
Step 2, stirring in the sediment stirring barrel 2 to realize the dissolution of sediment and water into a sediment water sample, weighing the sediment water sample by a water sample weighing platform on the sediment stirring platform 1, calculating the sand content value of the sediment water sample, and quantitatively weighing and putting dry sediment substances by a weighing type quantitative sand feeder 4 according to the sediment amount required by a main control platform.
Step 3, the sediment mixing platform 1 corrects the dry matter weight input by the sand adding device 4 according to the sand content value and the weighing type ration, the electric control flow regulating valve 25 is opened according to the water distribution amount required by the main control platform, the water quantity flowing into the sediment mixing barrel 2 is measured according to the high-precision flowmeter 23, the electric control flow regulating valve 25 is closed after the water distribution amount required by the main control platform is reached, and the stirring motor 9 drives the stirring rod 91 and the high-efficiency sediment stirring paddle 92 to move in the sediment mixing barrel 2, so that sediment dry matter and water in the barrel are fully dissolved and uniform.
The water sample weighing platform and the weighing type quantitative sand throwing device 4 perform zero point correction according to fixed weights according to weighing.
And 4, selecting an immersed sediment detection table 10 or an injection sediment detection table 11 according to the detected equipment 5 for detection, determining the weights according to the measurement precision of the water sample weighing platform and the weighing type quantitative sand throwing device 4, and obtaining the more accurate sand content of the water sample by using a weighted average method, wherein the sediment stirring platform 1 corrects the dry matter weight input by the weighing type quantitative sand throwing device 4 according to the sand content value, and determines the weights according to the measurement precision of the water sample weighing platform and the weighing type quantitative sand throwing device 4, and obtaining the more accurate sand content of the water sample by using the weighted average method.
Preferably, the silt mixing barrels 2 with different inclinations can be selected, the outer walls of the silt mixing barrels 2 are barrel walls with different inclination angles, the conventional silt mixing barrels 2 are barrel walls perpendicular to the ground, and the included angle of the inclination angle of the silt mixing barrels 2 perpendicular to the ground is set asThe diameter of the barrel bottom is/>The total amount of sediment in the barrel is recorded as/>,/>Calculating the flow speed of the current sediment stirring barrel 2 according to the influence of the inclination angle on the total sediment, and calculating the weight in the current sediment stirring barrel 2 as/>, by recording the current weighing platform in real timeThe flow rate can be regulated and controlled through the flow valve, so that different states of the detected equipment 5 under different flow rates can be judged.
Further, the method is characterized in that the method is carried out according to the sand-containing numerical value of the detected equipment in different current time, wherein the sand-containing numerical value is the risk level of the detected equipment, the weight of the silt stirring barrel 2 in the unit time at two times is measured by the weighing platform and is respectively recorded asAnd/>。
Wherein the method comprises the steps ofRecording a plurality of/>, as a change trend value for judging the weight at the current and the later momentsRecorded as/>According to/>Judging the change trend of the weight in the detection time of the detected equipment 5, and calculating a plurality of/>The product value with time, and calculates the different duty cycle as the state level h,
If h is more than 60%, recording the state grade of the equipment as a first dangerous grade, and indicating that the equipment is not recommended to be used in a water and soil loss accessory river basin; if 20% < h <60%, recording the status grade of the equipment as a second dangerous grade, and indicating that the equipment needs to be sealed and reinforced; h is less than 20%, and the state grade of the equipment is recorded as a third dangerous grade, so that the equipment can be normally used in a river basin near water and soil loss.
And 5, after multiple measurements are carried out, calculating the average value as the precision of the measured device, wherein the sand content value calculated by the water sample weighing platform is specifically as follows:
Firstly, the mass of water flowing into the sediment mixing drum 2 is calculated by the high-precision flowmeter 23, and the volume measured by the high-precision flowmeter 23 is set as The mass of this partial volume of water is set to/>Then there is/>，/>The density of water was 1kg/L.
The weighing platform is used for weighing the total weight of the sediment sample water in the sediment stirring barrel 2 and is set asCalculating the total mass of sediment in the sediment sample water, and setting the mass as/>Then there is/>。
Further, the weight of the dry sand thrown into the symmetrical weight type quantitative sand throwing device 4 is corrected as follows:
Let the mass of the sediment put into the sediment agitator 2, which is weighed by the weighing type quantitative sediment feeder 4, be The weight determined by the measurement precision of the weighing type quantitative sand throwing device 4 is A, and the weight determined by the measurement precision of the sediment water sample weighing platform is B, and the final sediment total amount/> isdeterminedThe sediment content/>, of the sediment water sample in actual unit volumeThereby correcting and obtaining more accurate sand content.
Furthermore, the average value of the multiple measurement results is calculated by adopting a calculation method of a recurrence method, and the average value is setSecondary measurement result total sediment amount is/>According to the traditional sample mean value calculation formula:，
the average of the first n-1 samples is: ，
is available in the form of ，
Thereby making it，
By using the calculation method, the method can be used beforeThe nth verification result can be obtained quickly according to the experimental data of the times, and the quick calculation can be realized when the data volume is more, so that the operation efficiency is improved.
Preferably, the total sediment amount of the set secondary measurement result isPerforming dimensionless data processing, whereinSo that/>The secondary measurement result is/>Between dimensionless values, andObtain a set/>And continuing the experimental result of calculating the sample mean value by using the array.
Further, the structures of the sediment mixing drum 2 and the like can be used for simulating the conditions of gentle and stable river water flow conditions, simulating the climates such as storm and the like, so that the river flow speed is accelerated, and scene data when the sediment content changes obviously in a transient or short time are obtained, the stirring motor 9 continuously stirs sediment sample water in the sediment mixing drum 2, the main control platform controls the electric control flow regulating valve 25 and the weighing type quantitative sand throwing device 4 in real time, so that the sediment content and the water flow speed of the sediment sample in the sediment mixing drum 2 change continuously, the water outlet valve of the sediment mixing drum 2 is controlled, so that the volume of the sediment sample in the sediment mixing drum 2 can change continuously in the detection time to achieve the dynamic characteristic of simulating the occurrence of storm of river water, and the main control platform obtains the actual average sediment content by recording the total sediment amount and the total water amount of the entering the mixing drum in the whole time period and compares the actual average sediment content with the measured result of the measured device, so that verification of the water and soil holding device under the conditions is completed.
The specific method comprises the following steps: the main control platform continuously inputs sediment into the sediment stirring barrel 2 through controlling the weighing sediment dispenser, and continuously flows clean water into the sediment stirring barrel 2 through controlling the electric control flow regulating valve 25 and the flowmeter; controlling an electric stirrer to stir the sediment water sample continuously to uniformly mix the sediment water sample; the main control platform increases the opening of the electric control flow regulating valve 25, and after increasing the opening of the electric control flow regulating valve 25 and adding the silt in the weighing type silt stirring barrel 2 to achieve the temporary effect of flood, and on the basis, the real-time regulation is carried out, so that the sand content of the silt sample flowing into the stirring barrel is continuously changed, the main control platform controls the opening of the water outlet valve of the silt stirring barrel 2, the volume and the sand content of the silt sample are further continuously changed, the movement of the silt sample is further increased to become flowing water samples, the main control platform detects the total amount of the silt and the total amount of water flowing into the silt stirring barrel 2 in unit time, after each unit time is finished, the average sand content is calculated as the actual sand content of the whole process through the total amount of the silt and the water content flowing into the stirring barrel, the actual sand content value is compared with the measured result of the detected equipment, the used silt sample water is discharged into the sand collecting groove, the silt sample is recycled, and finally the flushing device is opened to flush the whole device, the next time is prepared, the measurement is carried out, the average value is calculated, and the measured and the accuracy of the detected device is finally determined.
The invention provides a water and soil conservation monitoring equipment calibrating device and a use method thereof, wherein a sediment stirring barrel can be matched with different volumes, sediment water samples of different grades are prepared by controlling the water quantity and the sediment dry matter quantity, the equipment to be tested is subjected to detection related performance requirements through the sediment water samples, wherein the water quantity is controlled by a high-precision flowmeter and an electric control flow regulating valve, the sediment dry matter is controlled by controlling a weighing type quantitative sand feeder and a weighing platform, and finally, the sediment dry matter and water in the barrel are fully dissolved and uniform by utilizing a stirring control motor, a stirrer, a sediment stirring barrel and a stirring control console in the stirring barrel; the high-precision sensor arranged on the weighing platform can directly weigh and measure the sediment water sample in the stirring barrel to obtain a sand content value, and correct the sand content value with the weight of dry matters input by the weighing type quantitative sand feeder, so that errors are reduced, and the detection of the soil and water conservation monitoring equipment is conveniently and rapidly realized under the control of parameters such as standardized runoff sediment and the like; in summary, the beneficial effects of the invention are as follows: under the control of parameters such as standardized runoff sediment, the detection of the soil and water conservation monitoring equipment is conveniently and rapidly realized.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The application method of the water and soil conservation monitoring equipment calibrating device is characterized by comprising the following steps of:
Step 1, a main control platform formulates sediment water samples of different grades, obtains sediment quantity and water distribution data required by each grade, and determines the volume of a sediment stirring barrel according to the volume of the sediment water samples;
Step 2, stirring in a sediment stirring barrel to enable sediment and water to be dissolved into a sediment water sample, weighing the sediment water sample by a water sample weighing platform on the sediment stirring platform, and calculating the sand content value of the sediment water sample, wherein a weighing type quantitative sand feeder carries out quantitative weighing and feeding of sediment dry matters according to the sediment amount required by a main control platform;
Step 3, correcting the sediment stirring platform according to the sediment content value and the dry matter weight input by the weighing type quantitative sand feeder, opening an electric control flow regulating valve according to the water distribution required by the main control platform, metering the water quantity flowing into the sediment stirring barrel according to the high-precision flowmeter, and closing the electric control flow regulating valve after the water distribution required by the main control platform is achieved;
Step 4, selecting an immersed sediment detection table or an injection sediment detection table for detection according to detected equipment, determining respective weights according to the measurement precision of a water sample weighing platform and a weighing type quantitative sand feeder, and obtaining more accurate sand content of the water sample by using a weighted average method;
step 5, after multiple measurements, obtaining an average value as the average sand content of the detected equipment;
The calibrating device of the soil and water conservation monitoring equipment comprises a standard sediment sample configuration area, wherein a sediment stirring platform is arranged on the standard sediment sample configuration area, a sediment stirring barrel is arranged in the sediment stirring platform in a penetrating manner, a cleaning device is arranged on one side of the sediment stirring barrel, and a weighing type quantitative sand throwing device is arranged above the cleaning device;
The device is characterized in that a soil sample throwing opening is formed in the sediment stirring barrel, a speed regulation stirring device is arranged above the sediment stirring barrel, a high-precision flowmeter is arranged between the speed regulation stirring device and the sediment stirring barrel, inspected equipment is arranged below the sediment stirring barrel and is arranged on a test bench, and the test bench is positioned below the sediment stirring platform;
An electric control flow regulating valve is arranged on a sediment water sample injection pipe between the sediment stirring barrel and the detected equipment, a sample circulating water tank is arranged below the detected equipment, a stirring circulating pump is arranged in the sample circulating water tank, one end of a sample water return pipeline is connected to the stirring circulating pump, the other end of the sample water return pipeline is connected to the sediment stirring barrel, and a water return regulating valve is arranged on the sample water return pipeline;
Be equipped with the frame on the silt stirring platform, be equipped with electric lift guide rail and electric lift platform in the frame, be equipped with agitator motor on the electric lift platform, agitator motor connects the puddler, the puddler wears to locate in the silt agitator, be equipped with a plurality of high-efficient silt stirring rake on the puddler.
2. The method for using a soil and water conservation monitoring equipment calibrating device according to claim 1, wherein one side of the sediment stirring platform is provided with an immersed sediment detection platform, the other side of the test bench is provided with an injection sediment detection platform, and the immersed sediment detection platform is provided with a photoelectric sediment detection sensor.
3. The method for using a water and soil conservation monitoring equipment calibrating device according to claim 1, wherein a sand collecting and draining unit is arranged behind the standard sediment sample configuration area, and comprises a sand collecting and draining groove which is arranged below the inspected equipment and is used for receiving sediment samples flowing out of the inspected equipment.
4. The method for using a soil and water conservation monitoring equipment verification device according to claim 1, wherein the mass of water flowing into the sediment mixing drum is measured by a high-precision flowmeter, and the volume measured by the high-precision flowmeter is set asThe mass of water measured by the high-precision flowmeter is set as/>Then there is/>The water sample weighing platform is used for weighing the total weight of the sediment water samples in the sediment stirring barrel and setting the total weight as/>Calculating the total mass of sediment in the sediment water sample, and setting the mass as/>Is marked as/>。
5. The method for using a water and soil conservation monitoring equipment verification device according to claim 1, wherein the weighing type quantitative sand feeder measures the mass of the sediment poured into the sediment mixing drum as followsThe weight represented by the measurement precision of the weighing type quantitative sand throwing device is A, the weight determined by the measurement precision of the water sample weighing platform is B, and the total mass of sediment is finally obtainedThe sediment content/>, per unit volume, of the sediment water sample。
6. The method for using a soil and water conservation monitoring equipment verification device according to claim 1, wherein the device is provided withThe secondary sand content value measurement result is/>The traditional sample mean value calculation formula is:
，
The average value obtained for the first n-1 samples is:
，
Thereby making it
，/>The final verification result is obtained.
7. The method of claim 6, wherein the total sediment amount of the n measurements isThe processing of the dimensionless data is carried out,
，
So that saidThe secondary measurement result is/>A dimensionless number between the two,
And is also provided withObtain/>And (3) carrying the array into a sample mean value calculation formula for calculation.
8. The method for using a soil and water conservation monitoring equipment calibrating device according to claim 1, wherein sediment stirring barrels with different inclinations are selected, and the included angle of the inclination angle of the sediment stirring barrels perpendicular to the ground vertical line isThe diameter of the bottom of the sediment stirring barrel is/>The total amount of sediment in the barrel is recorded as/>。
9. The method for using the calibrating device for the soil and water conservation monitoring equipment according to claim 1, wherein the sediment mixing drum structure is used for simulating scene data when the river flow speed is accelerated and the sediment content is obviously changed in a transient state in a heavy rain climate, the stirring motor continuously stirs sediment sample water in the sediment mixing drum, and the main control platform controls the flow regulating valve and the weighing type quantitative sand feeder to continuously change the sediment content and the water flow speed of the sediment sample water in the sediment mixing drum.
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