CN202548039U - Dust sedimentation experiment equipment - Google Patents
Dust sedimentation experiment equipment Download PDFInfo
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- CN202548039U CN202548039U CN2012200392659U CN201220039265U CN202548039U CN 202548039 U CN202548039 U CN 202548039U CN 2012200392659 U CN2012200392659 U CN 2012200392659U CN 201220039265 U CN201220039265 U CN 201220039265U CN 202548039 U CN202548039 U CN 202548039U
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Abstract
The utility model provides dust sedimentation experiment equipment, which comprises a sealed circulating wind tunnel, a magnetic field generation device, a rainfall simulation device, a sample collection device and a monitoring and recording device, wherein the sealed circulating wind tunnel is used for simulating three processes of dust raise, drifting diffusion and sedimentation in the natural world; the sealed circulating wind tunnel is provided with a sand dust cabin (19) which enables dust to raise, carry out drifting diffusion and deposit in the sand dust cabin (19); the magnetic field generation device generates an intensity and direction variation magnetic field in the sand dust cabin (19) and is arranged outside the sand dust cabin (19); the rainfall simulation device simulates rainfall in the sand dust cabin (19) and is provided with a shower nozzle (13) for falling rain into the sand dust cabin; the sample collection device is arranged on the bottom of the sand dust cabin (19); the monitoring and recording device is used for monitoring and recording the environment parameters comprising wind speed, temperature, moisture and magnetic field in the sand dust cabin (19); and the monitoring and recording device is electrically connected with the magnetic field generation device, the rainfall simulation device and fans (6 and 7) for providing circulating wind in the sealed circulating wind tunnel. The utility model provides a device for researching the possible physical mechanism in the dust sedimentation process.
Description
Technical field
The utility model relates to a kind of dust settling experimental provision.
Background technology
Soon, its existence had stopped a large amount of universe and from the high-velocity particles of the sun, tellurian ecologic environment has been played vital protective effect after the magnetic field of the earth resulted from the earth and forms.The magnetic field of the earth can change along with room and time, and the certain law of the earth itself is being contained in these variations, but also possibly have direct or indirect getting in touch with climate change, biological activity etc.Simultaneously, the variation in magnetic field of the earth has global consistance on certain yardstick, and before for example the modern recent terrestrial magnetic field of distance south poles reversal events occurred in 780,000 years, current reversal events just can be used as a time reference mark in the earth history research.Sediment (like ocean, lake sediment) is in the process of its formation; Magnetic mineral in the precipitum can the direction along the terrestrial magnetic field be arranged according to certain efficient under the effect of terrestrial magnetic field; When sediment be compacted, fixed after; Magnetic Field that can reflect when depositing that these magnetic minerals that direction is arranged along the terrestrial magnetic field have been recorded in sediments just is referred to as depositional remanent magnetism.Certainly, some sediment is because granularity is thicker; The space is bigger; Reasons such as compaction is not strong cause the magnetic mineral of the inside unfixing by completely, and they can be arranged along the direction of later stage terrestrial magnetic field; Geomagnetic field information when remanent magnetism so at this moment just can not reflect the sediment deposition is referred to as to deposit back remanent magnetism.For the Changing Pattern of the terrestrial magnetic field of studying over, simultaneously for the research of earth history provides the regular hour scale, the remanent magnetism mechanism of oceanic sediment has obtained many concerns.And as the loess of terrestrial facies wind-borne sediment; Although it has been proved to be the information that can write down the magnetic field of the earth; But because its sedimentary environment is different with the ocean; The remanent magnetism of oceanic sediment obtains mechanism and then can not directly bring and be applied in the loess, therefore need study the remanent magnetism acquisition mechanism of the loess of wind deposits.The example that such research is very unripe in the past, the related design of this patent can successful Application research in this respect on.
The utility model content
To the problem that exists in the correlation technique, the purpose of the utility model is to provide a kind of dust settling experimental provision, so that the device of the possible physical mechanism in a kind of settling process of studying dust to be provided.
For realizing above-mentioned purpose; The utility model provides a kind of dust settling experimental provision; It is characterized in that, comprising: in the simulating nature circle dust kick up, the closed circulation wind-tunnel of drift diffusion and three processes of sedimentation, have supply that dust is kicked up therein, the sand and dust storehouse of drift diffusion, sedimentation; In the sand and dust storehouse, produce the magnetic field generation device of intensity and direction variation magnetic field, be located at outside the sand and dust storehouse; The rainfall simulator of simulated rainfall in the sand and dust storehouse has the shower nozzle of rainfall in the sand and dust storehouse; Sample collection device is arranged on the bottom in the sand and dust storehouse; And the environmental parameter that comprises wind speed, temperature, humidity, magnetic field in the sand and dust storehouse monitored and the monitor recording device of real time record, and be electrically connected between the fan that recirculating air is provided in magnetic field generation device, rainfall simulator, the closed circulation wind-tunnel.
Preferably, the circulation wind-tunnel also comprises: be located at outside the sand and dust storehouse and the airduct that is communicated with it and by the dust feed arrangement with dust inlet; Wherein, the fan that recirculating air is provided is two and is located in the airduct that dust inlet is located between two fans and is communicated with airduct.
Preferably, magnetic field generation device comprises three orthogonal Helmholtz coilss, and the dust settling experimental provision also comprises: with coil and two supply units that fan is electrically connected.
Preferably, rainfall simulator also comprises water pump, and water pump is positioned at outside the sand and dust storehouse, also is connected with shower nozzle through water pipe.
Preferably, monitor recording device comprises: according to the magnetic field parameter that from the sand and dust storehouse, detects, the control supply unit is supplied with the strength of current of coil and the magnetic control module of direction, and the magnetic control module is electrically connected with supply unit; According to the wind speed parameter that from the sand and dust storehouse, detects, the control supply unit is supplied with the fan control module of the strength of current of fan, and fan control module is electrically connected with supply unit; According to the humidity parameter that from the sand and dust storehouse, detects, the water supply module of control water pump output and water supply time, water supply module is electrically connected with water pump; The dust Control module of the dust amount of feeding of control feed arrangement, the dust Control module is electrically connected with the motor that drives feed arrangement dust brush, and wherein the dust brush is carried dust to dust inlet.
Preferably, monitor recording device also comprises: detect the sensor of wind speed parameter, the sensor that detects magnetic field intensity and direction, the sensor that detects humidity, the sensor of detected temperatures, all these sensors all are located in the sand and dust storehouse.
Preferably, the upper space in the sand and dust storehouse is that dust diffusion region, lower space are the dust settling district, and sample collection device is arranged on the bottom in dust settling district.
Preferably, sample collection device comprises: the cylindrical sample box of tank, the sample box array of collecting discrete samples, collection bulk sample.
The useful technique effect of the utility model is: the device that the possible physical mechanism in a kind of settling process of studying dust is provided; Be particularly advantageous in the remanent magnetism acquisition mechanism of wind-borne sediments such as loess is better studied; Also can study, so that the mutual comparative study between the DIFFERENT DEPOSITIONAL ENVIRONMENTS to be provided, to promoting association area (like archeo magnetism to the remanent magnetism mechanism of ocean or lake sediment; Paleoclimate, paleoenvironment) research has positive effect.
Description of drawings
Fig. 1 is the structural representation of the utility model dust settling experimental provision;
Fig. 2 is the vertical frontal view of sample box array in the utility model;
Fig. 3 is the vertical view of Fig. 2, has omitted the sample box firm banking for simplifying purpose;
Fig. 4 is the synoptic diagram of cylindrical sample box.
Embodiment
Below referring to accompanying drawing the embodiment of the utility model is described.
Referring to Fig. 1, the utility model dust settling experimental provision comprises: circulation wind-tunnel, magnetic field generation device, rainfall simulator, sample collection device, and monitor controller.The circulation wind-tunnel can compare that real simulated occurring in nature dust is kicked up, drift diffusion and three processes of sedimentation, its have supply that dust is kicked up therein, the sand and dust storehouse 19 of drift diffusion and sedimentation; And magnetic field generation device is arranged on outside the sand and dust storehouse 19, and the magnetic field that on direction and intensity, can both change can be provided in sand and dust storehouse 19; Rainfall simulator can be in sand and dust storehouse 19 process of simple analog natural precipitation, have the shower nozzle 13 of rainfall in sand and dust storehouse 19; Sample collection device has the several samples collection mode to satisfy the demand of different experiments, is arranged on the bottom in the sand and dust storehouse 19; The Monitoring and Controlling pen recorder can play to the environmental parameter that comprises wind speed, temperature, humidity magnetic field etc. in the sand and dust storehouse 19 monitor, the effect of control, real time record, provide in this monitor controller and magnetic field generation device, rainfall simulator and the closed circulation wind-tunnel between the fan of recirculating air to be electrically connected.
Continuation is referring to Fig. 1; It is two in order to the fan that recirculating air is provided in the circulation wind-tunnel; It is the fan 6 and 7 shown in Fig. 1; The circulation wind-tunnel also comprises airduct 20, dust feed arrangement 8, and fan 6,7 promptly is arranged in the airduct 20, and the dust sample moves in wind-tunnel under the pressure-vaccum effect of preceding two fans 6,7 in back.Wherein, airduct 20 is communicated with outside sand and dust storehouse 19 and with sand and dust storehouse 19, and wind-tunnel 20 integrally closeds, and this makes the intensity of recirculating air power be protected, and can prevent that dust from leaking, and pollutes the laboratory surrounding environment; Dust feed arrangement 8 has storehouse, thing source 25, the dust brush (not shown) of storage dust and drives the motor 9 that the dust brush is transported to dust dust inlet.Can find out that from Fig. 1 dust inlet is communicated with airduct 20 between fan 6 and 7.Also show the support 14 that supports sand and dust storehouse 19 in addition among Fig. 1.
Can find out also that from Fig. 1 the dust settling experimental provision also comprises supply unit 11.As a kind of embodiment, magnetic field generation device comprises three orthogonal Helmholtz coilss 4.Supply unit 11 and this coil 4 and two fans 6,7 are electrically connected with to its power supply.
Shown in Fig. 1, the rainfall simulator in the utility model also comprises water pump 10, and water pump 10 is positioned at outside the sand and dust storehouse 19, also is connected with shower nozzle 13 through water pipe 23.Upper space in the sand and dust storehouse 19 is that dust diffusion region 1, lower space are dust settling district 2.1 owing to have the aerodynamic force of turbulent flow in the dust diffusion region, makes the sample dust to access and spread drift more fully, with the aerial state of simulation dust.Variation has all taken place with diffusion region 1 in negative area 2 on size and dimension, make negative area 2 have the aerodynamic force environment of relatively placidity, so the sample dust can be able to sedimentation.Obviously, sample collection device is arranged on the bottom in the dust settling district 2.Sample collection device can comprise: tank 3 as shown in Figure 1 (water simulation ocean being arranged, lake and palustrine, anhydrous simulation dry environment), and the anhydrous state that has in the tank 3 can be simulated the two kind situations of dust settling in doing ground and water; The sample box array 17 of collection discrete samples as shown in Figures 2 and 3 can once be collected with the parallel sample under the condition some; And the cylindrical sample box 18 of collection bulk sample as shown in Figure 4.Further, tank 3 only is used for simulating water environment, and water-less environment does not need to use, so tank 3 is transportable devices, with sample box array 17 no direct relations.
Can find out that from Fig. 2 and Fig. 3 with 4 row, 4 row mode arrays, array is on sample box firm banking 23 by 16 sample boxs 22 for sample box array 17.It is inner that sample box firm banking 23 is placed on sand and dust storehouse 19.
Monitor recording device comprises in the utility model: according to the magnetic field parameter that from sand and dust storehouse 19, detects, control supply unit 11 is supplied with the strength of current of coil 4 and the magnetic control module of direction, and the magnetic control module is electrically connected with supply unit 11; According to the wind speed parameter that from sand and dust storehouse 19, detects, control supply unit 11 is supplied with the fan control module of the strength of current (realizing the control of fan start and stop, air quantity of fan) of said fan 6,7, and fan control module is electrically connected with supply unit 11; According to the humidity parameter that from sand and dust storehouse 19, detects, the water supply module of control water pump 10 outputs and water supply time (realizing supplying water at regular time and quantity), water supply module is electrically connected with water pump 10; The dust Control module of the dust amount of feeding of control feed arrangement 8, the dust Control module is electrically connected with the motor 8 that drives the dust brush, in airduct 20, supplies dust at regular time and quantity with the control feed arrangement, promptly controls parameters such as dust quantity delivered, feed speed.For example, as a kind of optimal way, magnetic control module controls supply unit 11 makes coil 4 in sand and dust storehouse 20, produce the magnetic field of any direction, and this magnetic field is the fixed magnetic field of intensity between 0-100 μ T scope, and the variation magnetic field within this scope.Supply unit 11 can pass through monitor recording device (computing machine) 12 programmings control automatically.Control output except above-mentioned by means of water supply module in addition, also can the employing mode control water spray at regular time and quantity.Monitor recording device can also be realized comprising that experimental state parameters such as the above-mentioned environmental parameter and the dust amount of feeding, speed of feed carry out real time record.
Obviously be appreciated that; In order to transmit relevant parameter with the action of the above-mentioned module of monitor recording device; Monitor recording device also should comprise: detect the sensor of wind speed parameter, the sensor 16 that detects magnetic field intensity and direction, the sensor that detects humidity, the sensor 15 of detected temperatures, all these sensors all are located in the sand and dust storehouse 19.
When using this device, at first to confirm the experimental situation parameter according to the Demand Design experimental procedure, like magnetic field, temperature has anhydrously, has or not the requirement of rainfall simulation and sampling.Sample collection device is put into dust sample negative area; Confirm the closure of total system; Set needed environmental parameter through monitor recording device then; Can put into ready dust sample the storehouse, thing source of sampling device with that, the dust sample under the drive of the sample introduction of motor driven brush, the wind-tunnel that advances to circulate of input at regular time and quantity.The dust sample is moved to the diffusion region under the drive of recirculating air, can slow sedimentation get into sample collection device in the negative area at the effect dust sample of gravity and magnetic force.After treating that experiment is accomplished, with follow-up the researching and analysing of sample taking-up carrying out.
To sum up; The utility model provides the device of the possible physical mechanism in a kind of settling process of studying dust, is particularly advantageous in the remanent magnetism acquisition mechanism of wind-borne sediments such as loess is better studied, to promoting association area (like archeo magnetism; Paleoclimate, paleoenvironment) research has positive effect.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. a dust settling experimental provision is characterized in that, comprising:
In the simulating nature circle dust kick up, the closed circulation wind-tunnel of drift diffusion and three processes of sedimentation, have supply that dust is kicked up therein, the sand and dust storehouse (19) of drift diffusion, sedimentation;
In said sand and dust storehouse (19), produce the magnetic field generation device of intensity and direction variation magnetic field, be located at outside the said sand and dust storehouse (19);
The rainfall simulator of simulated rainfall in said sand and dust storehouse (19) has the shower nozzle (13) of rainfall in said sand and dust storehouse;
Sample collection device is arranged on the bottom in the said sand and dust storehouse (19); And
The environmental parameter that comprises wind speed, temperature, humidity, magnetic field in the said sand and dust storehouse (19) is monitored and the monitor recording device of real time record, and be electrically connected between the fan (6,7) that recirculating air is provided in said magnetic field generation device, rainfall simulator, the closed circulation wind-tunnel.
2. dust settling experimental provision according to claim 1 is characterized in that,
Said circulation wind-tunnel also comprises: be located at outside the said sand and dust storehouse (19) and the airduct (20) that is communicated with it and by the dust feed arrangement (8) with dust inlet;
Wherein, the described fan (6,7) of recirculating air that provides is two and is located in the said airduct (20) that said dust inlet is communicated with said airduct (20) between said two fans (6,7).
3. dust settling experimental provision according to claim 2 is characterized in that,
Said magnetic field generation device comprises three orthogonal Helmholtz coilss (4), and said dust settling experimental provision also comprises: the supply unit (11) that is electrically connected with said coil (4) and said two fans (6,7).
4. dust settling experimental provision according to claim 3 is characterized in that,
Said rainfall simulator also comprises water pump (10), and said water pump (10) is positioned at outside the said sand and dust storehouse (19), also is connected with said shower nozzle (13) through water pipe (23).
5. dust settling experimental provision according to claim 4 is characterized in that, said monitor recording device comprises:
According to the magnetic field parameter that from sand and dust storehouse (19), detects, to control said supply unit (11) and supply with the strength of current of said coil (4) and the magnetic control module of direction, said magnetic control module is electrically connected with said supply unit (11);
According to the wind speed parameter that from sand and dust storehouse (19), detects, control the fan control module that said supply unit (11) is supplied with the strength of current of said fan (6,7), said fan control module is electrically connected with said supply unit (11);
According to the humidity parameter that from sand and dust storehouse (19), detects, control the water supply module of said water pump (10) output and water supply time, said water supply module is electrically connected with said water pump (10); And
Control the dust Control module of the dust amount of feeding of said feed arrangement (8), said dust Control module is electrically connected with the motor (8) that drives said feed arrangement (8) dust brush, and wherein said dust brush is carried dust to said dust inlet.
6. dust settling experimental provision according to claim 5 is characterized in that,
Said monitor recording device also comprises: detect the sensor (15) of the sensor of said wind speed parameter, the sensor (16) that detects said magnetic field intensity and direction, the sensor that detects said humidity, the said temperature of detection, all these sensors all are located in the said sand and dust storehouse (19).
7. dust settling experimental provision according to claim 1 is characterized in that,
Upper space in the said sand and dust storehouse (19) is that dust diffusion region (1), lower space are dust settling district (2), and said sample collection device is arranged on the bottom in said dust settling district (2).
8. according to each described dust settling experimental provision among the claim 1-7, it is characterized in that,
Said sample collection device comprises: the cylindrical sample box (18) of tank (3), the sample box array (17) of collecting discrete samples, collection bulk sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200392659U CN202548039U (en) | 2012-02-07 | 2012-02-07 | Dust sedimentation experiment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200392659U CN202548039U (en) | 2012-02-07 | 2012-02-07 | Dust sedimentation experiment equipment |
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| CN202548039U true CN202548039U (en) | 2012-11-21 |
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| CN2012200392659U Expired - Fee Related CN202548039U (en) | 2012-02-07 | 2012-02-07 | Dust sedimentation experiment equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245599A (en) * | 2012-02-07 | 2013-08-14 | 中国科学院地质与地球物理研究所 | Dust settlement experiment apparatus |
| CN103543242A (en) * | 2013-11-05 | 2014-01-29 | 中海油能源发展股份有限公司惠州石化分公司 | Device for testing and evaluating dust suppression rate of dust suppressant |
| CN104849184A (en) * | 2015-04-16 | 2015-08-19 | 华东师范大学 | Micro-area closing apparatus for simulating atmospheric dust dry deposition |
| CN105572129A (en) * | 2015-12-10 | 2016-05-11 | 南京信息工程大学 | Box for researching diffusion of urban solid contaminant and method thereof |
| CN109696287A (en) * | 2018-12-03 | 2019-04-30 | 中国辐射防护研究院 | A kind of atmospheric boundary layer environmental wind tunnel wet deposition simulator |
-
2012
- 2012-02-07 CN CN2012200392659U patent/CN202548039U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245599A (en) * | 2012-02-07 | 2013-08-14 | 中国科学院地质与地球物理研究所 | Dust settlement experiment apparatus |
| CN103245599B (en) * | 2012-02-07 | 2015-04-29 | 中国科学院地质与地球物理研究所 | Dust settlement experiment apparatus |
| CN103543242A (en) * | 2013-11-05 | 2014-01-29 | 中海油能源发展股份有限公司惠州石化分公司 | Device for testing and evaluating dust suppression rate of dust suppressant |
| CN104849184A (en) * | 2015-04-16 | 2015-08-19 | 华东师范大学 | Micro-area closing apparatus for simulating atmospheric dust dry deposition |
| CN104849184B (en) * | 2015-04-16 | 2017-05-24 | 华东师范大学 | Micro-area closing apparatus for simulating atmospheric dust dry deposition |
| CN105572129A (en) * | 2015-12-10 | 2016-05-11 | 南京信息工程大学 | Box for researching diffusion of urban solid contaminant and method thereof |
| CN105572129B (en) * | 2015-12-10 | 2018-11-16 | 南京信息工程大学 | Municipal solid pollutant diffusion research case and its method |
| CN109696287A (en) * | 2018-12-03 | 2019-04-30 | 中国辐射防护研究院 | A kind of atmospheric boundary layer environmental wind tunnel wet deposition simulator |
| CN109696287B (en) * | 2018-12-03 | 2023-11-24 | 中国辐射防护研究院 | Atmospheric boundary layer environment wind tunnel wet deposition simulation device |
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Legal Events
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| 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: 20121121 Termination date: 20150207 |
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| EXPY | Termination of patent right or utility model |