Wind-sand creep flow real-time monitoring and collecting device

Abstract

The invention relates to a sand storm creep flow real-time monitoring and collecting device, the core component of the device is a collecting box, the top of the collecting box is provided with a collecting groove, the peripheral side of the collecting groove is provided with a baffle guide groove, and a first side baffle and a second side baffle which can move up and down are arranged in the baffle guide groove, so that the device can adjust the position of the baffle according to the bed surface change. During measurement, the whole collection groove is buried in a detected sand bed surface. According to the device, the distance sensors are installed on the blocking plate every 3 cm in the direction perpendicular to the flow direction, when the distance detected by more than half of the sensors exceeds a preset threshold value, the main control panel sends out an instruction to activate the hydraulic system, and the first side baffle and the second side baffle are guided to descend at the same time, so that it is ensured that the top of the first side baffle is flush with the sand bed surface. The automatic adjusting mechanism ensures that the top of the first side baffle is always kept at the same height with the sand bed surface, and can automatically adapt to the change of the bed surface caused by factors such as erosion.

Description

Technical Field

[0001] The invention relates to the technical field of wind sand monitoring, and in particular to a device for real-time monitoring and collecting wind sand creep flow. Background Art

[0002] In essence, sandstorm disasters are mainly caused by turbulent sand transport in the atmospheric boundary layer. Turbulent sand transport is a typical multi-scale, random, multi-field coupled natural phenomenon that often occurs in deserts and farmlands in arid areas. Therefore, in order to effectively prevent and control sandstorm disasters, we must first accurately grasp the laws of sand transport. At present, extensive and in-depth research has been conducted on saltation transport, but research on creep transport is still insufficient, and there is insufficient qualitative and quantitative understanding of it. The sand transport flux acquisition device is one of the important measuring instruments for studying the laws of sand transport and near-surface particle transport.

[0003] The existing saltation sand collector can capture the total sand flux of saltation particles within a period of time through the sand collection box. However, it cannot capture the creeping particle flow. Some creeping sand collectors have very unstable sand collection efficiency due to unreasonable settings of various key parameters. In order to solve the above problems, a real-time monitoring and collection device for wind sand creep flow is designed. Summary of the invention

[0004] The purpose of the present invention is to provide a real-time monitoring and collection device for wind-sand creep flow.

[0005] In order to solve the above technical problems, the present invention provides a real-time monitoring and collection device for wind and sand creep flow, characterized in that it includes: a collection box, a collection groove is opened on the top of the collection box, a baffle guide groove is opened on the outer peripheral side of the collection groove, a first side baffle and a second side baffle are installed on the baffle guide groove, the first side baffle and the second side baffle can move up and down along the baffle guide groove, after the collection groove is buried in the sand bed surface to be detected, the first side baffle is flush with the sand bed surface, and a blocking plate is installed on the top of the second side baffle, the front end of the blocking plate is designed to be extended, the top of the first side baffle and the blocking plate form a collection port, and laser sand flux detection probes are installed on the top of the first side baffle and the bottom of the blocking plate.

[0006] Furthermore, a card slot is provided at the bottom of the first side baffle plate and the second side baffle plate, and an installation slot is provided between the collection slot and the baffle guide slot. A hydraulic cylinder is installed inside the installation slot, and the top of the hydraulic cylinder is fixed in the card slot. The hydraulic cylinder can push the first side baffle plate and the second side baffle plate to move up and down.

[0007] Furthermore, a sawtooth bar is provided on one side of the first side baffle, which is used to scrape the accumulated agglomerated sand when the first side baffle moves downward.

[0008] Furthermore, a main control panel is installed at the inner bottom of the collection box, and a plurality of distance sensors are installed at the bottom of the blocking plate, and the distance sensors are connected to the main control panel.

[0009] Furthermore, the distance detector is used to detect the distance between the sand bed surface and the blocking plate on one side of the first baffle, wherein when the distance between the sand bed surface and the blocking plate increases to 2-3 mm, the main control panel controls the first side baffle to descend.

[0010] Furthermore, a ventilation hole is provided on the second side baffle, and the ventilation hole is directly opposite to the collection port.

[0011] Furthermore, the geometric equation of the relationship between the extension length L of the blocking plate relative to the edge of the first side baffle and its height h from the bed surface is:

[0012]

[0013] The beneficial effect of the present invention is that

[0014] 1. By installing a distance sensor every 3 cm on the upper edge of the baffle perpendicular to the flow direction, when the distance detected by more than half of the sensors exceeds the preset threshold, the main control panel will issue a command to activate the hydraulic system to guide the first side baffle and the second side baffle to descend at the same time to ensure that the top of the first side baffle is flush with the sand bed surface. This automatic adjustment mechanism ensures that the top of the first side baffle always maintains the same height as the sand bed surface and can automatically adapt to changes in the bed surface caused by factors such as erosion.

[0015] 2. By equipping with a laser sand flux detection probe, the flow of creeping particles can be measured in real time, thereby improving the accuracy and real-time nature of the monitoring data. The design of the present invention significantly reduces the need for manual intervention, greatly improves the degree of automation of the monitoring work and the reliability of the system, thereby providing an efficient and reliable technical solution for wind and sand monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a stereogram of a real-time monitoring and collecting device for wind and sand creep flow of the present invention;

[0018] Figure 2 It is a front view cross-sectional structural schematic diagram of a real-time monitoring and collecting device for wind and sand creep flow of the present invention.

[0019] In the figure:

[0020] 1. Collection box; 11. Collection slot; 12. Baffle guide slot; 13. Main control panel; 14. Distance sensor;

[0021] 2. First side baffle; 21. Second side baffle; 22. Card slot; 23. Mounting slot; 24. Hydraulic cylinder; 25. Sawtooth bar; 26. Ventilation hole;

[0022] 3. Blocking board;

[0023] 4. Collection port;

[0024] 5. Laser sand flux detection probe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0026] Unless otherwise defined, the technical or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figure 1-2As shown, a real-time monitoring and collection device for wind and sand creep flow of the present invention comprises: a collection box, a collection slot is provided on the top of the collection box, a baffle guide slot is provided on the outer peripheral side of the collection slot, a first side baffle and a second side baffle are installed on the baffle guide slot, the first side baffle and the second side baffle can move up and down along the baffle guide slot, after the collection slot is buried in the sand bed to be detected, the first side baffle is flush with the sand bed surface, a blocking plate is installed on the top of the second side baffle, the front end of the blocking plate is designed to extend, and its extension distance exceeds the edge L of the first side baffle, one end of the blocking plate extends to the outside of the collection box, the top of the first side baffle and the blocking plate form a collection port, and the top of the first side baffle and the bottom of the blocking plate are both installed with laser sand flux detection probes for real-time detection of creeping sand flow, a main control panel is installed on the inner bottom of the collection box, and the laser sand flux detection probe is connected to the main control panel.

[0028] The first side baffle and the second side baffle can move up and down along the baffle guide groove to adjust the height of the collection port to adapt to changes in the bed surface caused by erosion and other factors. After the collection groove is buried in the sand bed surface to be detected, the first side baffle is flush with the sand bed surface to ensure that the creeping sand particles can smoothly enter the collection box. A blocking plate is installed on the top of the second side baffle, one end of which extends to the outside of the collection box to form a collection port together with the top of the first side baffle. The laser sand flux detection probe is used to monitor the sand flow through the collection port in real time.

[0029] A card slot is provided at the bottom of the first side baffle plate and the second side baffle plate, and an installation slot is provided between the collection slot and the baffle guide slot. A hydraulic cylinder is installed inside the installation slot, and the top of the hydraulic cylinder is fixed in the card slot. The hydraulic cylinder can push the first side baffle plate and the second side baffle plate to move up and down.

[0030] A boss is formed between the baffle guide groove and the mounting groove, and the protruding position of the boss is inserted into the slot at the bottom of the first baffle and the second baffle, so that a part of the bottom of the first baffle and the second baffle is located in the baffle guide groove, and the other part is located in the collection groove. A mounting groove is opened between the protruding position, that is, the collection groove and the baffle guide groove, and the end of the hydraulic cylinder in the mounting groove is fixed in the slot. Starting the hydraulic cylinder can push the first side baffle and the second side baffle to move up and down along the baffle guide groove.

[0031] A sawtooth bar is provided on one side of the first side baffle, which is used to scrape the accumulated agglomerated sand when the first side baffle moves downward.

[0032] By arranging a sawtooth bar on one side of the first side baffle, an effective physical intervention measure is taken to break up the agglomeration of sand particles. The sawtooth bar is designed to have a scraping function, which can automatically clean up the agglomerated sand particles accumulated on one side of the baffle during the up and down movement of the first side baffle.

[0033] A main control panel is installed at the inner bottom of the collection box, and a plurality of distance sensors are installed at the bottom of the blocking plate. The distance sensors are connected to the main control panel. The distance detector is used to detect the distance between the sand bed surface on one side of the first baffle and the blocking plate. When the distance between the sand bed surface and the blocking plate increases to 2-3 mm, the main control panel controls the first side baffle to descend, and the second side baffle drives the blocking plate to descend together, so as to ensure that the relationship between the extension length L of the blocking plate relative to the edge of the first side baffle and its height h from the bed surface satisfies a specific geometric equation.

[0034] The distance sensor continuously measures the distance between the barrier plate and the sand bed surface. Once this distance exceeds or equals to the preset threshold (such as 2-3mm), this information will be immediately sent to the main control panel. After receiving the distance data, and because the sand on one side of the first side baffle may be partially accumulated, a sensor is set at every adjacent 3cm distance. When more than half of the sensors detect a distance exceeding the preset threshold, the main control panel will issue a command to control the hydraulic cylinder to start, and will mobilize the first side baffle to descend and the second side baffle to descend at the same time, so that the top of the first side baffle always remains flush with the sand bed surface, and can automatically adapt to changes in the bed surface caused by factors such as erosion, reducing the need for manual intervention and improving the automation and reliability of monitoring work.

[0035] The second side baffle is provided with a ventilation hole, which is directly opposite to the collection port. The ventilation hole can effectively avoid airflow blockage that causes sand particles to accumulate at the detector entrance, thereby improving detection accuracy.

[0036] On a flat upper bed, the migrating particles usually impact the bed at an impact angle of 9° to 16°. Based on this information, in order to accurately capture the creeping particles, the extension length L of the barrier plate relative to the edge of the first side baffle and its height h from the bed surface should satisfy the following geometric relationship:

[0037]

[0038] According to the above formula, the ratio of the extension length of the device baffle relative to the edge of the first side baffle to its height from the bed surface can be determined to be smaller than the inverse tangent function value in the formula to ensure that the collected particles are creeping particles.

[0039] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A real-time monitoring and collection device for wind and sand creep flow, characterized in that: include: A collection box, wherein a collection slot is provided on the top of the collection box, a baffle guide slot is provided on the outer peripheral side of the collection slot, a first side baffle and a second side baffle are installed on the baffle guide slot, the first side baffle and the second side baffle can move up and down along the baffle guide slot, after the collection slot is buried in the sand bed surface to be detected, the first side baffle is flush with the sand bed surface, a blocking plate is installed on the top of the second side baffle, the front end of the blocking plate is designed to extend, and the extension distance exceeds the edge L of the first side baffle, the top of the first side baffle and the blocking plate form a collection port, and laser sand flux detection probes are installed on the top of the first side baffle and the bottom of the baffle.

2. A real-time monitoring and collection device for wind and sand creep flow as claimed in claim 1, characterized in that: A card slot is provided at the bottom of the first side baffle plate and the second side baffle plate, and an installation slot is provided between the collection slot and the baffle guide slot. A hydraulic cylinder is installed inside the installation slot, and the top of the hydraulic cylinder is fixed in the card slot. The hydraulic cylinder can push the first side baffle plate and the second side baffle plate to move up and down.

3. A real-time monitoring and collection device for wind and sand creep flow as claimed in claim 2, characterized in that: A sawtooth bar is provided on one side of the first side baffle, which is used to scrape the accumulated agglomerated sand when the first side baffle moves downward.

4. A real-time monitoring and collection device for wind and sand creep flow as claimed in claim 3, characterized in that: A main control panel is installed at the inner bottom of the collection box, and a plurality of distance sensors are installed at the bottom of the blocking plate, and the distance sensors are connected to the main control panel.

5. A real-time monitoring and collection device for wind and sand creep flow as claimed in claim 4, characterized in that: The distance detector is used to detect the distance between the sand bed surface and the blocking plate on one side of the first baffle, wherein when the distance between the sand bed surface and the blocking plate increases to 2-3 mm, the main control panel controls the first side baffle to descend.

6. A real-time monitoring and collection device for wind-sand creep flow as claimed in claim 5, characterized in that: The second side baffle is provided with a ventilation hole, and the ventilation hole is directly opposite to the collection port.

7. A real-time monitoring and collection device for wind-sand creep flow as claimed in claim 6, characterized in that: The geometric equation of the relationship between the extension length L of the blocking plate relative to the edge of the first side baffle and its height h from the bed surface is:

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