CN113588198B - Sand storm simulation generator - Google Patents
Sand storm simulation generatorInfo
- Publication number
- CN113588198B CN113588198B CN202010362227.6A CN202010362227A CN113588198B CN 113588198 B CN113588198 B CN 113588198B CN 202010362227 A CN202010362227 A CN 202010362227A CN 113588198 B CN113588198 B CN 113588198B
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- sand
- control slide
- slide plate
- amount control
- hopper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a sand storm simulation generator, which comprises a sand hopper fixed on a bracket I and provided with a loose-leaf small door, an adjustable sand and dust amount device arranged at the bottom of the sand hopper, and a box body structure arranged below the adjustable sand and dust amount device. The sand hopper is characterized in that a built-in detachable gauze is arranged at the middle upper part of the sand hopper, the adjustable sand and dust amount device comprises a support II, a handle and a sand amount control slide plate, a rotating shaft is arranged in the middle of the support II, one end of the rotating shaft is connected with the handle, sliding sleeves are respectively arranged at the two sides of the top of the support II, the sand amount control slide plate is horizontally arranged in the sliding sleeves, a pair of rotating rollers are symmetrically arranged at the two sides of the rotating shaft and are in contact with the sand amount control slide plate, sliding holes are formed at the two sides of the sand amount control slide plate and are connected with the sliding sleeves, and a plurality of rows of sand leakage holes or sand leakage grooves in different forms are formed in the sand amount control slide plate. The invention has simple control and accurate test, and can meet the test requirements of various sand tests and wind sand stress resistance.
Description
Technical Field
The invention relates to the technical field of ecological environment equipment manufacturing, in particular to a sand storm simulation generator.
Background
The sand storm is a serious windy and sandy weather environment in which a large amount of dust substances on the ground are blown up by strong wind and are involved in the air, so that the air is very turbid and the visibility is very low. The sand storm can cause the destruction of buildings through the strong wind erosion carrying fine sand dust, causes the injury of people and animals, can also carry the wind and sand flow mode of a large amount of sand particles to attack farms, channels, railways, grasslands and the like, so that the sand storm is buried by a large amount of sand, sand and stones wrapped by the wind and floating dust are diffused everywhere in the sand storm weather, and the sand dust is muddy through the air in areas, so that diseases such as respiratory tract and the like frequently occur, especially in the sand storm source area and the sand dust influence area, the inhalable particulate matters (TSP) in the atmosphere are increased, and the ecological environment is deteriorated. Besides the extreme weather phenomenon of sand storm, the weather phenomena of haze, sand, floating dust, smog and the like are caused by the influence of a large amount of very fine dust particles or smog and the like floating in the air, so that the visibility of the effective level is reduced, the atmospheric pollution is aggravated, the living environment is worsened, and the production and the life are seriously influenced.
Currently, research on sand storm and dust is mainly conducted from the weather perspective and on a large scale, and migration paths and influence ranges are researched by monitoring occurrence and development processes of the sand storm. Less research is done on a small scale, only involving the research level of the mechanism of dusting by sand. With the development of technology, wind and sand flow can be simulated in a wind tunnel, and the main method adopted is to cover sand at the bottom of the wind tunnel, and although the method can generate wind and sand flow, the method can not accurately simulate the environment of sand and dust, especially a sand storm. Another main method is to simulate sand storm by adopting a method of sand leakage from top to bottom, which can generate sand storm flow, but because the sand leakage amount cannot be controlled, the generated sand storm flow is saturated sand storm flow, and sand storm with different levels, especially floating dust environment, cannot be simulated. Moreover, only one-dimensional wind speed can be generated in the wind tunnel, sand and dust can not stay in the tunnel body for a long time along with the timely scattering of the wind direction, so that the simulation of different levels of sand and dust storm, especially the simulation of floating dust environment, can be accurately controlled, and the sand and dust environment in a near-natural state is a difficulty in the current study of sand and wind disaster prevention and control.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sand storm simulation generator which is simple to operate and control and accurate in test.
The sand storm simulation generator is characterized by comprising a sand hopper fixed on a support I and provided with a hinge small door, an adjustable sand and dust amount device arranged at the bottom of the sand hopper and a box structure arranged below the adjustable sand and dust amount device, wherein a built-in detachable gauze is arranged at the middle upper part of the sand hopper, the adjustable sand and dust amount device comprises a support II, a handle and a sand amount control slide plate, a rotating shaft is arranged at the middle part of the support II, one end of the rotating shaft is connected with the handle, sliding sleeves are respectively arranged at the two sides of the top of the support II, the sand amount control slide plate is horizontally arranged in the sliding sleeves, a pair of rotating rollers are symmetrically arranged at the two sides of the rotating shaft and are in contact with the sand amount control slide plate, sliding holes are formed in the two sides of the sand amount control slide plate and are connected with the sliding sleeves, and a plurality of rows of sand leakage holes or sand leakage grooves in different forms are formed in the sand amount control slide plate.
The built-in dismounting gauze is obliquely arranged and connected with the container Sha Dou through a buckle.
The loose-leaf small door is arranged on the sand containing hopper at one side of the bottom edge of the built-in detachable gauze.
The built-in detachable gauze is a group of gauze with different pore sizes.
The sand amount control slide plate is a plurality of sets of rectangular steel plates with different aperture sizes or sand leakage amounts.
The width of each row of sand leakage holes or sand leakage grooves in different forms is equal to the width of the bottom of the sand hopper.
The edges of each row of sand leakage holes or sand leakage grooves in different forms are provided with protrusions.
The sliding sleeve is fixed on the bracket II through bolts.
And a thread I is arranged on the rotary roller and is matched with a thread II arranged at the bottom of the sand control slide plate.
Compared with the prior art, the invention has the following advantages:
1. The middle upper part of the sand hopper is provided with the built-in detachable gauze, so that the injected sand grains can be separated firstly according to the grain size of the sand.
2. The sand amount control slide plate is provided with a plurality of rows of sand leakage holes or sand leakage grooves in different forms, so that the sand amount control slide plate can be horizontally moved by rotating the handle, and various sand leakage forms such as the sand leakage holes or the sand leakage grooves meeting the test requirements can be selected at any time, thereby achieving the purpose of accurately controlling the sand leakage amount.
3. According to the invention, the sand amount control sliding plate is horizontally arranged in the sliding sleeve and is contacted with the rotary roller, so that the direction, angle, sand flow and the like of a sand leakage point can be flexibly regulated and controlled, sand storms of different levels in a near-natural state can be simulated, and meanwhile, the sand, floating dust or haze environment can be simulated.
4. The invention has simple operation, convenient test and wide application range, overcomes the regional limitation, can be installed in an indoor wind tunnel, can be combined with a portable wind tunnel, and can be installed in a field environment for relevant research under the condition of natural wind conditions, thereby meeting the test requirements of various sand and dust tests and wind and sand stress resistance.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
FIG. 3 is a schematic view of the horizontal structure of the sand control slide plate according to the present invention.
The sand hopper is 1, the screen is 11, the loose-leaf small door is 12, the sand and dust amount adjusting device is 2, the rotary roller is 21, the sand amount controlling slide plate is 22, the sand leakage hole is 221, the sand leakage groove is 222, the edge bulge is 223, the slide hole is 224, the bolt is 225, the handle is 23, the sand and dust amount adjusting device bracket is 24, the sliding sleeve is 25, and the box body structure is 3.
Detailed Description
As shown in fig. 1 to 3, a sand storm simulation generator comprises a sand hopper 1 with a loose-leaf small door 12 fixed on a bracket I13, an adjustable sand and dust amount device 2 arranged at the bottom of the sand hopper 1, and a box structure 3 arranged below the adjustable sand and dust amount device 2.
The sand hopper 1 is provided with a built-in detachable gauze 11 at the middle upper part, the adjustable sand and dust amount device 2 comprises a bracket II24, a handle 23 and a sand amount control slide plate 22, a rotating shaft is arranged in the middle of the bracket II24, one end of the rotating shaft is connected with the handle 23, sliding sleeves 25 are respectively arranged at two sides of the top of the bracket II24, the sand amount control slide plate 22 is horizontally arranged in the sliding sleeves 25, a pair of rotating rollers 21 are symmetrically arranged at two sides of the rotating shaft and are in contact with the sand amount control slide plate 22, sliding holes 224 are arranged at two sides of the sand amount control slide plate 22, the sliding holes 224 are connected with the sliding sleeves 25, and a plurality of rows of sand leakage holes 221 or sand leakage grooves 222 with different forms are arranged on the sand amount control slide plate 22.
Wherein the built-in dismounting gauze 11 is obliquely arranged and is connected with the sand hopper 1 through a buckle.
The loose-leaf small door 12 is arranged on the sand hopper 1 at one side of the bottom edge of the built-in detachable gauze 11, so that sand particles or sundries with larger particle size can be discharged out of the sand hopper at any time.
The built-in detachable gauze 11 is a group of gauze with different pore sizes, and can be replaced with gauze with different pore sizes at any time according to the actual particle size of sand dust.
The sand control slide plate 22 is a plurality of rectangular steel plates with different aperture sizes or sand leakage amounts, and can be replaced at any time according to test requirements so as to accurately control the sand leakage amount or the sand dust amount.
The width of each row of sand leakage holes 221 or sand leakage grooves 222 with different forms is equal to the width of the bottom of the sand hopper 1.
The edges of each row of sand leakage holes 221 or sand leakage grooves 222 with different forms are provided with protrusions 223.
The sliding sleeve 25 is fixed on the bracket II24 by bolts 225.
The rotating roller 21 is provided with a thread I which is matched with a thread II arranged at the bottom of the sand control slide plate 22.
The box structure 3 may be used to receive sand that leaks through the adjustable sand and dust amount device 2.
The rotating roller 21 can horizontally move the sand control slide plate 22 through the rotation of the handle 23, and when the sand control slide plate 22 moves to a certain required sand discharge hole 221 or sand discharge groove 222, the sand control slide plate can be tightly attached to the bottom of the sand hopper 1.
In the installation process of the equipment, the two side surfaces of the sand control slide plate 22 are firstly horizontally placed in the sliding sleeve 25 above the bracket II24 of the adjustable sand and dust device 2, then the rotating roller 21 of the adjustable sand and dust device 2 can rotate through the handle 23 to horizontally move the sand control slide plate 22, and as the screw threads II are arranged at the bottoms of the two side surfaces of the sand control slide plate 22 and can be matched with the rotating roller 21, the sand control slide plate 22 can be moved to the sand leakage hole 221 or the sand leakage groove 222 required by the test when the handle 23 is controlled.
Before the test, the built-in detachable gauze 11 suitable for the pore size is placed in advance according to the related requirements of the test. At this time, the outside sand particles are slowly introduced into the sand hopper 1, after the separation effect of the built-in dismounting gauze 11, one part of sand particles enter the bottom of the sand hopper 1, and the other part of sand particles with larger particle size are discharged through the loose-leaf small door 12 at the upper part of the sand hopper 1.
The invention can be combined with wind tunnel equipment to simulate the characteristics of the sand flow field of sand storm with different levels, can be used for carrying out simulation test research of artificial sand storm in the field, and can also be used for carrying out related simulation test research under dust environment or haze meteorological conditions. The sand leakage amount or the sand dust amount can be accurately regulated and controlled by selecting different sand leakage forms, and response characteristics of certain objects or plants in the sand dust environments with different angles and different directions can be studied by flexibly simulating the generation modes and the sand dust environments of sand dust storms with different levels.
Example 1a sand storm simulation generator was combined with a wind tunnel to simulate a sand environment.
The sand storm simulation generator is installed on the upper part of the wind tunnel test section, the sand amount control slide plate 22 is installed, the required row of sand leakage grooves 222 or sand leakage holes 221 are adjusted, and then the sand amount control slide plate 22 is controlled to be above the support II24 through bolts 225. Slowly injecting the quicksand from above the sand hopper 1, and enabling the quicksand to enter a wind tunnel test section through the sand leakage holes 221 or the sand leakage grooves 222, and controlling the wind tunnel to set wind speed when the wind tunnel is started. Each of the sand leakage holes 221 or the sand leakage grooves 222 can measure the amount of sand leakage per minute during the natural leakage process, and thus, the level of the wind sand flow or the sand storm can be set with reference to the amount of sand leakage during the relevant test process. In the test process, along with the gradual increase of the wind speed, the sand leakage amount can be correspondingly increased by adjusting the sand amount control slide plate 22, so that the sand storm or the sand environment in the near-natural state can be simulated.
Example 2a sand storm simulation generator was placed in a field natural environment to simulate a sand environment.
The sand storm simulation generator can be placed in a natural wind condition to simulate a sand-raising or dust-floating environment in a field environment. The sand storm simulation generator is horizontally placed perpendicular to the main wind direction, sand and dust are injected into the sand hopper 1, and the sand hopper is adjusted to a proper sand leakage hole 221 or a proper sand leakage groove 222. Experimental materials (such as plants cultivated in a flowerpot) or experimental models, etc. are placed in downwind of the sand leakage holes 221 or the sand leakage grooves 222. Under natural wind conditions, the sand leakage hole 221 or the sand leakage groove 222 is opened, and at this time, a sand and dust environment is generated in the downwind direction. The method can be used for researching the capability of capturing different plant sand or the capability of fixing the plant sand, and can also be used for researching the wind and sand prevention performance of related instruments or equipment in a sand environment.
Embodiment 3a variable frequency fan is mounted on one side of the box structure 3, and the other side is extended, so that a portable wind tunnel can be quickly assembled. By adjusting different sand leakage modes and sand leakage amounts and matching with wind speed, sand storm and sand environment with different levels can be simulated.
Claims (7)
1. A sand storm simulation generator is characterized by comprising a sand containing hopper (1) fixed on a support I (13) and provided with a loose-leaf small door (12), an adjustable sand and dust amount device (2) arranged at the bottom of the sand containing hopper (1) and a box structure (3) arranged below the adjustable sand and dust amount device (2), wherein a built-in dismantling gauze (11) is arranged at the middle upper part of the sand containing hopper (1), the adjustable sand and dust amount device (2) comprises a support II (24), a handle (23) and a sand amount control slide plate (22), a rotating shaft is arranged in the middle of the support II (24), one end of the rotating shaft is connected with the handle (23), sliding sleeves (25) are respectively arranged at two sides of the top of the support II (24), the sand amount control slide plate (22) is horizontally arranged in the sliding sleeves, a pair of rotating rollers (21) are symmetrically arranged at two sides of the rotating shaft, the rotating rollers (21) are in contact with the sand amount control slide plate (22), sliding holes (224) are formed in two sides of the sand amount control slide plate (22), the sand amount control sliding plate (22) is provided with a plurality of rows of sand leakage holes (221) or sand leakage grooves (222) in different forms, the width of each row of sand leakage holes (221) or sand leakage grooves (222) in different forms is equal to the width of the bottom of the sand holding hopper (1), and the edge of each row of sand leakage holes (221) or sand leakage grooves (222) in different forms is provided with a bulge (223).
2. A sand storm simulation generator as claimed in claim 1, characterized in that said built-in dismounting screen (11) is arranged obliquely and connected to said sand hopper (1) by means of a snap-in.
3. A sand storm simulation generator as claimed in claim 2, characterized in that said loose-leaf small door (12) is provided on said sand hopper (1) at the side of the bottom edge of said built-in dismounting screen (11).
4. A sand storm simulation generator as claimed in claim 1, characterized in that said built-in removable screen (11) is a set of screens of different pore sizes.
5. A sand storm simulation generator as claimed in claim 1 wherein said sand amount control slide (22) is a plurality of rectangular steel plates of different pore sizes or sand leakage amounts.
6. A sand storm simulation generator as claimed in claim 1, characterized in that said sliding sleeve (25) is fastened to said bracket II (24) by means of bolts (225).
7. A sand storm simulation generator as claimed in claim 1, characterized in that said rotary roller (21) is provided with a thread I which matches a thread II provided at the bottom of said sand control slide (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362227.6A CN113588198B (en) | 2020-04-30 | 2020-04-30 | Sand storm simulation generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362227.6A CN113588198B (en) | 2020-04-30 | 2020-04-30 | Sand storm simulation generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113588198A CN113588198A (en) | 2021-11-02 |
| CN113588198B true CN113588198B (en) | 2025-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010362227.6A Active CN113588198B (en) | 2020-04-30 | 2020-04-30 | Sand storm simulation generator |
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| CN (1) | CN113588198B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729823A (en) * | 2015-04-09 | 2015-06-24 | 中国科学院电工研究所 | Sand wind two-phase flow experiment device for buildings and building wind sand experiments |
| CN211784179U (en) * | 2020-04-30 | 2020-10-27 | 甘肃省治沙研究所 | Sand storm simulation generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100191055B1 (en) * | 1996-10-12 | 1999-06-15 | 정몽규 | Sand chipping testing apparatus for automobile |
| CN104122064A (en) * | 2013-04-27 | 2014-10-29 | 中国科学院寒区旱区环境与工程研究所 | Soil wind erosion collector for wind tunnel |
-
2020
- 2020-04-30 CN CN202010362227.6A patent/CN113588198B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729823A (en) * | 2015-04-09 | 2015-06-24 | 中国科学院电工研究所 | Sand wind two-phase flow experiment device for buildings and building wind sand experiments |
| CN211784179U (en) * | 2020-04-30 | 2020-10-27 | 甘肃省治沙研究所 | Sand storm simulation generator |
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| Publication number | Publication date |
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| CN113588198A (en) | 2021-11-02 |
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