CN209858372U - Runoff silt automated inspection equipment - Google Patents
Runoff silt automated inspection equipment Download PDFInfo
- Publication number
- CN209858372U CN209858372U CN201920470188.4U CN201920470188U CN209858372U CN 209858372 U CN209858372 U CN 209858372U CN 201920470188 U CN201920470188 U CN 201920470188U CN 209858372 U CN209858372 U CN 209858372U
- Authority
- CN
- China
- Prior art keywords
- muddy water
- measuring cylinder
- water measuring
- runoff
- muddy
- 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.)
- Active
Links
Abstract
An automatic runoff sediment detection device, comprising: the device comprises a detection box body, a first muddy water measuring cylinder and a second muddy water measuring cylinder; the top flow divider is arranged on the first muddy water measuring cylinder; the water level sensor is fixedly installed at the top of the first muddy water measuring cylinder; the n equal-division flow dividing ports are formed in the muddy water measuring cylinder I, are close to one side of the water measuring cylinder II and are flush with the water level sensor; the flow buffer is fixed between the n equal division ports and the second muddy water measuring cylinder; the weighing sensors are respectively arranged at the bottom of the first muddy water measuring cylinder and the bottom of the second muddy water measuring cylinder; and the muddy water input port is arranged on the detection box body and is positioned above the first muddy water measuring cylinder. The utility model discloses only detect two parameters of total weight and total volume to muddy water runoff, do not detect the silt content measurement method of muddy water runoff middle accumulation process, its relative error is maximum-5.29%, and the testing accuracy is very big improvement with traditional silt content measurement method comparison.
Description
Technical Field
The utility model belongs to the technical field of the production process of monitoring silt, especially, relate to a runoff silt automatic check out test set.
Background
At present, automatic observation of silt amount in the process of water and soil loss of a slope surface is a worldwide difficult problem of field experiments at present, and due to the fact that silt is unstable in water, various photoelectric sensing interference factors are complex, and accurate measurement of silt cannot be achieved.
At present, the automatic monitoring method for runoff in the process of slope water and soil loss is diversified and developed, and the runoff flow is measured based on a tipping bucket counting principle proposed by Khan and A.A.H. in 1997 in a new method, so that the runoff monitoring instrument based on the tipping bucket counting principle is gradually popularized in China. Chinese patent numbers CN100520314C, CN202676218U and the like have provided related patent products. But the automatic observation of the sediment amount can not be realized, and the integration to a data acquisition platform is difficult.
In the method for monitoring the soil and water loss mud water, a method for calculating the volume and the mass of the mud water is provided, but the gas phase content mixed in the mud water is ignored, and a specific practical calculation method is lacked because the accurate density value of the mud water cannot be given. And the product design lacks in-situ stability consideration, and the repeatability is poor because the product processing does not pay attention to the process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that exists among the above-mentioned background art, provide a sediment runoff synchronous monitoring technique is calculated to the volume of weighing, focus eliminate the volume measurement error that the fluctuation of water level arouses and a runoff sediment automatic check out test set of reasonable drainage measure.
The utility model discloses a following technical scheme realizes: an automatic runoff sediment detection device, comprising:
detecting the box body; the muddy water measuring cylinder I is arranged inside the detection box body; the muddy water measuring cylinder II is positioned on one side of the muddy water measuring cylinder I; the top flow divider is arranged on the first muddy water measuring cylinder; the water level sensor is fixedly installed at the top of the first muddy water measuring cylinder; the n equal-division flow dividing ports are formed in the muddy water measuring cylinder I, are close to one side of the water measuring cylinder II and are flush with the water level sensor; the flow buffer is fixed between the n equal division ports and the second muddy water measuring cylinder; the weighing sensors are respectively arranged at the bottom of the first muddy water measuring cylinder and the bottom of the second muddy water measuring cylinder;
the water level detecting head of the water level sensor is arranged inside the first muddy water measuring cylinder, and the height of the first muddy water measuring cylinder is higher than that of the second muddy water measuring cylinder.
By adopting the technical scheme: the body of the water level sensor is fixed at the top of the first muddy water measuring cylinder, so that the stability of water level measurement is improved, the water level sensor is prevented from generating oscillation due to the water level, and the detection precision is improved.
In a further embodiment, the flow divider comprises a plurality of circular holes, and the circular holes are distributed on the same horizontal line at equal intervals.
By adopting the technical scheme: the round hole type flow divider is arranged and positioned on the same horizontal line, so that the uniformity of silt overflowing is ensured.
In a further embodiment, an assay vessel is disposed below the diverter, with the top of the assay vessel in contact with the bottom of the diverter.
In a further embodiment, the flow buffer water is funnel shaped with an internal friction coefficient of more than 0.5.
By adopting the technical scheme: in order to eliminate the energy of the flowing water at the shunt opening.
In a further embodiment, a receiving pipe is sleeved on the flow dividing port.
In a further embodiment, a data collector is arranged on the outer side of the detection box body and is connected with the water level sensor and the weighing sensor through wires.
By adopting the technical scheme: forming a closed waterproof monitoring system.
The utility model has the advantages that: the utility model discloses the total amount method of using is exactly to only detect two parameters of total weight and total volume to muddy water runoff, does not detect the silt content measurement method of muddy water runoff middle accumulation process, and its relative error is maximum-5.29%, and the testing accuracy is very big improvement with traditional silt content measurement method comparison.
Drawings
Fig. 1 is the utility model discloses a kind of silt runoff automatic monitoring instrument structure chart.
Fig. 2 is a top view of the first muddy water measuring cylinder of the present invention.
Fig. 3 is an enlarged view of the shunt according to the present invention.
The labels in fig. 1 to 3 are: the device comprises a detection box body 1, a first muddy water measuring cylinder 2, a second muddy water measuring cylinder 3, a flow divider 4, a water level sensor 5, a bearing pipe 6, a flow buffer 7, a muddy water input port 8, a weighing sensor 9, a measuring vessel 10 and a data acquisition unit 11.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
The utility model discloses a runoff silt automated inspection equipment, include: the device comprises a detection box body 1, a first muddy water measuring cylinder 2, a second muddy water measuring cylinder 3, a flow divider 4, a water level sensor 5, a bearing pipe 6, a flow buffer 7, a muddy water input port 8, a weighing sensor 9, a measuring vessel 10 and a data acquisition unit 11.
As shown in fig. 1 to 3, the detection box body 1 is a stainless steel sealing box, and external non-runoff interference, such as rainfall and sand storm, is eliminated during runoff monitoring. But the communication with the outside air ensures no negative pressure.
The first muddy water measuring cylinder 2 and the second muddy water measuring cylinder 3 are arranged in parallel in the detection box body 1 and can be moved out for cleaning, so that the maintenance is convenient; and the height of the first muddy water measuring cylinder 2 is higher than that of the second muddy water measuring cylinder 3. And the muddy water input port 8 is arranged on the detection box body and is positioned above the first muddy water measuring cylinder.
The flow divider 4 is arranged at the top of the muddy water measuring cylinder I2, the flow divider 4 is a plurality of round holes, the number of overflow outlets is customized according to specific requirements, the mouth shape is a perfect circle, all the bottoms of the mouths are horizontally leveled, a measuring vessel 10 is designed at the lower part of all the bottoms of the mouths, and the top and the overflow outlets are leveled. The n equal division ports are arranged on the same horizontal plane of the splitter and are positioned on one side close to the second muddy water measuring cylinder 3, and the n equal division ports are sleeved with the adapting pipes 6.
In this embodiment, the type of the water level sensor 5 is SS-SW101, and the water level sensor 5 is fixedly installed at the top of the first muddy water measuring cylinder 2, and a water level probe of the water level sensor 5 is placed inside the first muddy water measuring cylinder 2 and is placed to be driven by the shaking of the water level to shake the body of the water level sensor 5. The total volume of the muddy water is measured, the water level sensor 5 is used for communicating the inner chamber and the outer chamber of the muddy water to stabilize the water level, the water level monitoring precision is improved, and the water flow is ensured to smoothly enter the inner chamber, namely the measurement and the recording are carried out in the device.
The flow buffer 7 is fixed in the detection box body 1 and is positioned between the n equal-division flow dividing port and the muddy water measuring cylinder II 3, the structure of water of the flow buffer 7 is funnel-shaped, and the internal friction coefficient is 0.5-1, so that the energy of flowing water at the flow dividing port is eliminated.
The weighing sensors 9 are two groups of LFP-17150 KG weighing sensors 9+ LZ-801S transmitters which are respectively arranged in the detection box body 1, and the first muddy water measuring cylinder 2 and the second muddy water measuring cylinder 3 are respectively arranged on the weighing sensors 9.
The type of the data collector 11 is SDC1000, is arranged on the outer side of the detection box body 1, and is connected with the water level sensor 5 and the weighing sensor 9 through leads.
The utility model discloses a theory of operation: the runoff sediment tester mainly measures the sediment content in runoff through the following relational expression according to the total volume, the total weight, the air content, the density of sediment and pure water of muddy water, namely:
V2＝V-V1-VC (2)
W1＝ρ1V1 (3)
W2＝W-W1 (4)
in the formula: w-total weight of mixed water runoff, V-total volume of mixed water runoff, V1-volume of silt, W1-weight of silt, rho 1-density of soil particles, V2-volume of pure water, W2-weight of pure water, rho 2-density of pure water, and C-average content percentage of air in mixed water runoff.
W, V automatically records the parameters through an instrument; rho 2 is the density of pure water, and the numerical values at different temperatures can refer to experimental data; c has been determined to be 0.657%; in practical application, only a plurality of 50-100 g sediment samples are collected, and the density rho 1 of the sediment is measured.
The density ρ 1 of the soil grains is calculated by the following method: in order to improve the measuring accuracy of the instrument, the method mainly implements the methods of increasing the accuracy of water level measurement and weight measurement, providing an in-situ calibration method of a flow dividing coefficient and providing a local soil particle density parameter measurement: when the water level is measured, the liquid level in the measuring pipe is relatively smooth and stable, and the weight measuring plane can be adjusted horizontally to improve the accuracy.
The proposed in-situ calibration method of the flow splitting coefficient is as follows: assuming that the number of the branch ports is n, the bottoms of all the ports are horizontally aligned, a measuring vessel is designed at the lower part of the bottom of all the ports, the top of the measuring vessel is aligned with the overflow port, the volume of the measuring vessel is A, and when the measuring vessel is full, the outflow volume of the branch ports is B, so that the B/A is the flow dividing coefficient. The average value of B/A is taken as the shunt coefficient in a plurality of experiments in the field.
The method for measuring the local soil particle density parameter is provided as follows: and (3) putting the soil sample to be detected with any mass into an oven for fully drying, putting the dried soil sample into a constant volume container, weighing to obtain the mass of soil particles, and filling the container with water to enable the soil particles and supplementing water to fill the constant volume container. And (4) weighing the total mass of the soil particles and the water after the water is filled and the mass of the pure water filled in the container, and calculating the density of the soil particles by using a volume displacement method conversion algorithm.
The utility model has the advantages that: the relative error of the traditional test method for stirring, sampling, drying, weighing and calculating the soil erosion modulus is determined to be-33.4-81.32 percent, the average is-60.56 percent, the absolute error is-47.26-114.26 kg/m2, and the difference between the determination result and the true value is 1.5-5.22 times. The traditional test method for stirring, sampling, drying, weighing and calculating soil erosion modulus can be determined to be quite rough through the tests. The silt can not be uniformly distributed in the water by stirring, so that the representativeness of the collected water sample is very poor, and the error of the measurement result is overlarge. The conclusion from the measurement results is thus that the reliability is lost.
The total amount method applied by the method is a sediment content measuring method which only detects two parameters of total weight and total volume of the muddy water runoff and does not detect the intermediate accumulation process of the muddy water runoff. The test data are shown in the table (1), and the relative error is maximally-5.29% from the table (1), so that the test precision is greatly improved compared with the traditional sediment content determination method.
Table 1 simulation test data for measuring runoff sediment content by total amount method
The process method applied by the patent considers that the occurrence and development of soil erosion is a process and is closely related to rainfall, strength, soil water content, permeability, gradient, terrain and other factors, so that the total result of one-time soil erosion is required to be known, the soil erosion and the condition that limiting factors of the soil erosion change along with time in the soil erosion process are required to be known, the volume and the weight of muddy water runoff accumulation processes at different times can be measured and recorded simultaneously by a runoff sediment determinator, the sediment weight and the clear water weight in the muddy water runoff accumulation processes at different times can be calculated by using a formula (1), muddy water runoff and clear water river sediment accumulation process lines can be further drawn, and the organic relation and the causal relation between water and sediment movement and the influencing factors in the runoff process can be specifically analyzed according to the processes. Through experiments, the process method not only describes the generation and development process of muddy water runoff, but also has the testing precision reaching 12% of error.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a runoff silt automatic check out test equipment which characterized in that includes:
detecting the box body; the muddy water measuring cylinder I is arranged inside the detection box body; the muddy water measuring cylinder II is positioned on one side of the muddy water measuring cylinder I; the top flow divider is arranged on the first muddy water measuring cylinder; the water level sensor is fixedly installed at the top of the first muddy water measuring cylinder; the n equal-division flow dividing ports are formed in the muddy water measuring cylinder I, are close to one side of the water measuring cylinder II and are flush with the water level sensor; the flow buffer is fixed between the n equal division ports and the second muddy water measuring cylinder; the weighing sensors are respectively arranged at the bottom of the first muddy water measuring cylinder and the bottom of the second muddy water measuring cylinder; the muddy water input port is arranged on the detection box body and is positioned above the first muddy water measuring cylinder;
the water level detecting head of the water level sensor is arranged inside the first muddy water measuring cylinder, and the height of the first muddy water measuring cylinder is higher than that of the second muddy water measuring cylinder.
2. The automatic runoff sediment detection apparatus of claim 1 wherein the diverter comprises a plurality of circular holes, the plurality of circular holes being equidistantly distributed on the same horizontal line.
3. The automatic runoff sediment detection apparatus of claim 1, wherein a measuring vessel is arranged below the diverter, and the top of the measuring vessel is in contact with the bottom of the diverter.
4. The automatic runoff sediment detection apparatus of claim 1 wherein the flow buffer water is funnel-shaped and has an internal coefficient of friction greater than 0.5.
5. The automatic runoff sediment detection apparatus of claim 1, wherein a receiving pipe is sleeved on the diversion port.
6. The automatic runoff sediment detection equipment according to claim 1, wherein a data collector is arranged on the outer side of the detection box body and is connected with the water level sensor and the weighing sensor through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920470188.4U CN209858372U (en) | 2019-04-09 | 2019-04-09 | Runoff silt automated inspection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920470188.4U CN209858372U (en) | 2019-04-09 | 2019-04-09 | Runoff silt automated inspection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209858372U true CN209858372U (en) | 2019-12-27 |
Family
ID=68936843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920470188.4U Active CN209858372U (en) | 2019-04-09 | 2019-04-09 | Runoff silt automated inspection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209858372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112545A (en) * | 2021-11-15 | 2022-03-01 | 西安理工大学 | Sampling detection device for runoff sediment and using method thereof |
-
2019
- 2019-04-09 CN CN201920470188.4U patent/CN209858372U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112545A (en) * | 2021-11-15 | 2022-03-01 | 西安理工大学 | Sampling detection device for runoff sediment and using method thereof |
| CN114112545B (en) * | 2021-11-15 | 2023-09-22 | 西安理工大学 | Sampling and detecting device for runoff sediment and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108827853B (en) | Nuclear magnetic resonance-based tight reservoir rock electric measurement device and measurement method | |
| CN103415763B (en) | For the method determining suspended substance in liquid load concentration | |
| CN106192969A (en) | A kind of based on ball-type full discharge orifice pressure feeler inspection penetrometer and coefficient of consolidation evaluation methodology thereof | |
| CN209858372U (en) | Runoff silt automated inspection equipment | |
| CN110274660A (en) | Liquid inspection method, apparatus, system and household electrical appliance | |
| CN108195441A (en) | Runoff plots soil moisture and go out stream monitoring system and method | |
| CN104763408B (en) | A kind of high precision petroleum three-phase automatic metering device and its metering method | |
| CN209821099U (en) | Multifunctional compact gas reservoir dynamic parameter joint measurement device based on nuclear magnetic resonance | |
| CN111811977B (en) | Runoff sediment content and flow measurement device and measurement method | |
| JPH03220453A (en) | Continuous precipitation monitoring apparatus | |
| CN110208497A (en) | A kind of portable soil specific yield tester and test method | |
| CN209858560U (en) | Runoff plot silt automatic monitoring device | |
| CN209802418U (en) | Automatic monitor for full runoff sediment | |
| CN109061122B (en) | Device and method for measuring slag carrying capacity of slurry | |
| CN108106698B (en) | On-site calibration device and calibration method for vehicle-mounted single-water-tank type oilfield water meter | |
| CN207730296U (en) | Runoff plots soil moisture and go out to flow monitoring system | |
| CN205562330U (en) | Be applicable to core sample stripping gas measuring equipment | |
| CN108627412A (en) | The micro self-measuring device of fluid substitution weight method grease and method | |
| CN105511508A (en) | Lysimeter automatic water supply metering device | |
| CN110595984B (en) | Cylinder infiltration instrument for measuring undisturbed soil saturated hydraulic conductivity and measuring method thereof | |
| CN106990019A (en) | A kind of method for measuring ore body weight | |
| CN203132949U (en) | On-line densimeter | |
| CN203275230U (en) | Gas fast measuring analyzer | |
| CN204677186U (en) | A kind of high precision petroleum three-phase automatic metering device | |
| CN115060859B (en) | Runoff sediment content measuring method and measuring device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |