CN203798531U - Device for observing starting wind speed of sand - Google Patents
Device for observing starting wind speed of sand Download PDFInfo
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- CN203798531U CN203798531U CN201420139571.9U CN201420139571U CN203798531U CN 203798531 U CN203798531 U CN 203798531U CN 201420139571 U CN201420139571 U CN 201420139571U CN 203798531 U CN203798531 U CN 203798531U
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- wind
- wind speed
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model relates to a device for observing the starting wind speed of sand. The device is characterized in that soil wind-erosion wind tunnel test sections are respectively placed at the left and right ends of a transparent glass test section, the transparent glass test section includes a tunnel body whose top is transparent and rectangular, the top of the transparent glass test section is provided with a camera lifting support, a camera and a camera controller are arranged on the camera lifting support, the camera corresponds to a test platform at the bottom of the transparent glass test section, the shape of the test platform is similar to a circular disk, and a soil wind erosion test sample is placed on the circular disk; and the camera controller is connected with a computer and a display, a wind speed measuring Pitot tube is fixed by a digital micro-pressure wind anemometer via a silica gel hose and a Pitot tube fixing base, the wind speed measuring Pitot tube is placed in the middle of a cross section of the transparent glass test section and leveled with the base plate of the tunnel body, a dynamic pressure port of the wind speed measuring Pitot tube is just orientated to a wind speed unit, a lead connected with a wind speed frequency-variable controller is connected with a motor by penetrating through the soil wind-erosion wind tunnel test sections, and the motor is connected with a propeller via a belt. The device solves the problem that variable starting wind speeds of sands in a wind-drift sand field cause errors of simulation direction, the measuring accuracy of test data is ensured, and test conditions for researches on the characteristics of dust storm movement under different wind speeds are provided.
Description
Technical field
The utility model relates to a kind of blowing sand wind tunnel test section grains of sand and starts Wind observation device.
Background technology
Soil drifting wind tunnel test is the large-scale instrument and equipment designing for simulation field dust storm phenomenon.Soil drifting wind-tunnel is generally divided into the parts such as power system, rectification section, contraction section, test section, sediment feeding hopper and diffuser.In carrying out the simulated experiment of dust storm phenomenon, wind speed changes continuously speed governing in the scope of 2 meter per second～40 meter per seconds, and wind speed size is to be completed by manual control variator.In scientific experiment activity, it is very difficult that the field grains of sand start the big or small observation of wind speed, studies different earth's surfaces particle startup wind speed size very inconvenient, and artificially on the grains of sand, impact is disturbed greatly, and observation wind speed size data precision is not high.And variable grain deflation startup wind speed is to carry out the Soil Erosion Modelling Study of stream and an important physical amount of engineering calculation.It is that testing crew starts wind speed size with eyes observing earth soil particle outside wind sand environment hole that the general grains of sand start Wind observation, has reduced people's interference.In test observation, there is such problem, observation is effort very, exists personal error larger.
Summary of the invention
Based on above-mentioned, the purpose of this utility model provides a kind of grains of sand to start Wind observation device.Utilize wind tunnel model to carry out simulated experiment, for solving a kind of device of artificially grains of sand impact interference being developed.
The purpose of this utility model can reach by following measures:
The grains of sand start a Wind observation device, test platform, glass transparent test section, measuring wind speed pitot tube, digital minute-pressure wind gage, camera, soil drifting detection sample and computing machine, consist of.Soil drifting test chamber occupy two ends, glass transparent test section left and right, glass transparent test section is top transparent rectangle hole body, camera lifting support is equipped with at its top, on camera lifting support, be equipped with camera and camera controller, the test platform of the corresponding glass transparent test section of camera bottom, test platform likeness in form disc, places soil drifting and detects sample on disk; Camera controller is connected with computing machine, display, digital micro manometer is by the fixing measuring wind speed pitot tube of silica gel hose and skin hauling pipe holder, centre and hole body base plate that measuring wind speed pitot tube is placed to glass transparent test section sectional area maintain an equal level, its pitot aperture aligning wind speed wind speed frequency-variable controller) wire connecting is connected with variable-frequency motor through soil drifting test chamber, and variable-frequency motor is connected with screw propeller.
The utility model has the advantages that:
1, utilize wind speed frequency-variable controller to control variable-frequency motor and screw propeller adjustment wind speed, digital minute-pressure wind gage records measuring wind speed pitot tube wind speed in glass transparent test section, by high-resolution camera, take the scene that the grains of sand move under certain wind speed, and measure and carry out data acquisition in real time by computing machine, display.The utility model has solved the grains of sand in sand-flow field and has started the wind direction experiment of Wind observation unit simulation field.Solved the problem in changeable wind transmission speed Imitating wind direction error, thereby the making that guarantees to change model velocity and reduce test model guarantees the exact value that experimental data is measured, and for studying dust storm motion characteristics under different wind friction velocities, provides reliable test condition.
2, the pitot aperture of measuring wind speed pitot tube is aimed at the data that wind speed can gather stream under different wind speed, within the regular hour.Digital micro manometer can obtain the data of interior sand drift amount during this period of time.
3, the utility model is simple in structure, reasonable in design, easy to operate, practical, and cost is low.Reduce people's interference, guaranteed the exact value that experimental data is measured.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of grains of sand start Wind observation device, test platform 3, glass transparent test section 2, measuring wind speed pitot tube 8, digital minute-pressure wind gage 9, camera 5, soil drifting detection sample 4 and computing machine 12, consist of.Soil drifting test chamber 1 occupy glass transparent test section 2 two ends, left and right, glass transparent test section 2 is top transparent rectangle hole body, camera lifting support 6 is equipped with at the top of glass transparent test section 2, is equipped with camera 5 and camera controller 7 on camera lifting support 6.By camera controller 7, regulate 6 oscilaltions of camera lifting support.The test platform 3 of the corresponding glass transparent test section of camera 52 bottoms, test platform 3 likeness in form discs, place soil drifting and detect sample 4 on disk; Camera controller 7 is connected with computing machine 12, display 13, digital minute-pressure wind gage 9 passes through fixedly measuring wind speed pitot tube 8 of silica gel hose 10 use skin hauling pipe holders 11, centre and hole body base plate that measuring wind speed pitot tube 8 is installed to glass transparent test section 2 sectional areas maintain an equal level, centre and wind-tunnel base plate that its pitot aperture aligning wind speed 17 is placed in test section sectional area maintain an equal level, the wire that wind speed frequency-variable controller 14 connects is connected with variable-frequency motor 15 through soil drifting test chamber 1, and variable-frequency motor 15 is equipped with screw propeller 16 with glass transparent test section 2 one end and is connected.
On test platform 3, put into the soil drifting sample 4 of fetching in field, soil drifting sample 4 surfaces maintain an equal level with test section bottom.After arranging on test platform that test specimen completes, opening installation is at glass test section 2 holes, top, and the mounted high-resolution camera 5 of lifting, in the body of hole, is debugged camera 5 focal lengths, when reaching the best observation angle needing, camera 5 stops fixing camera lifting support 6.Measuring wind speed pitot tube 8 maintains an equal level with glass transparent test section 2 base plates, its pitot aperture is aimed at wind speed 17, wind speed frequency-variable controller 14 controls variable-frequency motor 15 and screw propeller 16 is adjusted wind speed, digital minute-pressure wind gage 9 records measuring wind speed pitot tube 8 at the interior wind speed 17 of glass transparent test section 2, when wind speed 17 is controlled at after trial value, by being equipped with high-resolution camera 5 on camera lifting support 6, start to take the scene that the grains of sand move under certain wind speed, and measure and carry out data acquisition in real time by computing machine 12, display 13.
Claims (1)
1. grains of sand start Wind observation device, by test platform (3), glass transparent test section (2), measuring wind speed pitot tube (8), camera (5), soil drifting detects sample (4) and computing machine (12) forms, it is characterized in that soil drifting test chamber (1) occupy glass transparent test section (2) two ends, left and right, glass transparent test section (2) is top and both sides, left and right transparent rectangle hole body, camera lifting support (6) is equipped with at the top of glass transparent test section (2), on camera lifting support (6), be equipped with camera (5) and camera controller (7), the test platform (3) of the corresponding glass transparent test section of camera (5) (2) bottom, test platform (3) likeness in form disc, on disk, place soil drifting and detect sample (4), camera controller (7) and computing machine (12), display (13) connects, digital minute-pressure wind gage (9) is by silica gel hose (10) fixedly measuring wind speed pitot tube (8) of skin hauling pipe holder (11), centre and hole body base plate that measuring wind speed pitot tube (8) is installed to glass transparent test section (2) sectional area maintain an equal level, its pitot aperture is aimed at wind speed (17), the wire that wind speed frequency-variable controller (14) connects is connected with variable-frequency motor (15) through soil drifting test chamber (1), variable-frequency motor (15) is connected with screw propeller (16) by belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139571.9U CN203798531U (en) | 2014-03-26 | 2014-03-26 | Device for observing starting wind speed of sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139571.9U CN203798531U (en) | 2014-03-26 | 2014-03-26 | Device for observing starting wind speed of sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798531U true CN203798531U (en) | 2014-08-27 |
Family
ID=51380736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139571.9U Expired - Fee Related CN203798531U (en) | 2014-03-26 | 2014-03-26 | Device for observing starting wind speed of sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949818A (en) * | 2014-03-26 | 2015-09-30 | 中国科学院寒区旱区环境与工程研究所 | Sand starting wind speed observation device |
| CN105043966A (en) * | 2015-07-31 | 2015-11-11 | 工业和信息化部邮电工业标准化研究所 | Sand and dust test box and operation method thereof |
-
2014
- 2014-03-26 CN CN201420139571.9U patent/CN203798531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949818A (en) * | 2014-03-26 | 2015-09-30 | 中国科学院寒区旱区环境与工程研究所 | Sand starting wind speed observation device |
| CN105043966A (en) * | 2015-07-31 | 2015-11-11 | 工业和信息化部邮电工业标准化研究所 | Sand and dust test box and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |