CN114279909B - Dust particle natural sedimentation simulation device and application thereof - Google Patents
Dust particle natural sedimentation simulation device and application thereof Download PDFInfo
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- CN114279909B CN114279909B CN202111672233.2A CN202111672233A CN114279909B CN 114279909 B CN114279909 B CN 114279909B CN 202111672233 A CN202111672233 A CN 202111672233A CN 114279909 B CN114279909 B CN 114279909B
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- 239000000428 dust Substances 0.000 title claims abstract description 72
- 238000004062 sedimentation Methods 0.000 title claims abstract description 42
- 239000002245 particle Substances 0.000 title claims abstract description 34
- 238000004088 simulation Methods 0.000 title claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 40
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Cyclones (AREA)
- Electrostatic Separation (AREA)
Abstract
The application belongs to the technical field related to dust sedimentation, and discloses a dust particle natural sedimentation simulation device and application thereof, wherein the device comprises: the outlet of the fan is connected with one end of the induced air pipe, and a one-way valve is arranged at the outlet of the fan; the upper part of the air guiding pipe is provided with a dust box, the outlet of the air guiding pipe is connected with the inlet of the cyclone separator, and the upper part of the cyclone separator is connected with a flaring pipe and a rectifying net; the collecting sedimentation tank comprises a collecting chamber and a sedimentation chamber, wherein the bottom of the collecting chamber is connected with the rectifying net, the top of the collecting chamber is provided with an electrostatic adsorption plate, the tops of the collecting chamber and the sedimentation chamber are provided with sliding rails, and the upper parts of the collecting chamber and the sedimentation chamber are communicated, so that the electrostatic adsorption plate moves along the sliding rails, and the electrostatic adsorption plate is connected with a power supply. The application can realize the sedimentation research of any kind of dust and any particle size dust, and greatly improves the research efficiency.
Description
Technical Field
The invention belongs to the technical field related to dust sedimentation, and particularly relates to a dust particle natural sedimentation simulation device and application thereof.
Background
Automobile exhaust, building dust, natural dust fall and the like can cause a layer of thick dust and dirt to be accumulated on the surface of the photovoltaic mirror surface, the thick dust and dirt are difficult to remove through conventional means such as natural rainfall, wind power and the like, but the types of the accumulated matters are different, the removal difficulty and the removal method are different, the existing technology cleans through manpower or machinery, the accumulated characteristics of the accumulated matters cannot be removed in a targeted manner, so that the removal efficiency is extremely low, based on the research of a learner on the dust and the dust on the surface of the photovoltaic mirror surface, the current means are all in-situ sampling and analysis, the sampling period is long, the collection is required in a plurality of places, the efficiency is low, and the engineering quantity is large.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides the dust particle natural sedimentation simulation device and the application thereof, which can realize sedimentation research of any kind of dust and any particle size dust, and greatly improve the research efficiency.
To achieve the above object, according to one aspect of the present invention, there is provided a dust particle natural settling simulation apparatus, the apparatus comprising: the outlet of the fan is connected with one end of the induced air pipe, and a one-way valve is arranged at the outlet of the fan; the upper part of the air guiding pipe is provided with a dust box, the outlet of the air guiding pipe is connected with the inlet of the cyclone separator, and the upper part of the cyclone separator is connected with a flaring pipe and a rectifying net; the collecting sedimentation tank comprises a collecting chamber and a sedimentation chamber, wherein the bottom of the collecting chamber is connected with the rectifying net, the top of the collecting chamber is provided with an electrostatic adsorption plate, the tops of the collecting chamber and the sedimentation chamber are provided with sliding rails, and the upper parts of the collecting chamber and the sedimentation chamber are communicated, so that the electrostatic adsorption plate moves along the sliding rails, and the electrostatic adsorption plate is connected with a power supply.
Preferably, the device further comprises a power adjusting device, and the electrostatic adsorption plate and the fan are connected with a power adjusting device so as to realize screening of dust by adjusting the power of the electrostatic adsorption plate and the fan.
Preferably, the device further comprises a return pipe, one end of the return pipe is connected with the side part of the collecting chamber, the other end of the return pipe is connected with the induced air pipe, and the connection part of the return pipe and the induced air pipe is positioned between the one-way valve and the dust box.
Preferably, the return pipe is provided with a one-way valve.
Preferably, the electrostatic adsorption plate comprises a ceramic base plate and an electrode which are connected with each other, the electrode is connected with a power supply, and the ceramic base plate is used for adsorbing dust.
Preferably, the device further comprises a honeycomb tube arranged between the flared tube and the rectifying net.
Preferably, the lower part of the collecting chamber is a conical structure, and the small end of the conical structure is connected with the rectifying net.
Preferably, a side door is arranged on the side part of the sedimentation chamber.
Preferably, the device further comprises a control system for controlling the sliding of the electrostatic chuck plate and/or the switching of the power supply.
According to another aspect of the invention, there is provided the use of the above-described dust particle natural sedimentation simulation device for the simulation of dust natural sedimentation on the surface of a photovoltaic panel provided at the bottom of the sedimentation chamber.
In general, compared with the prior art, the dust particle natural sedimentation simulation device and the application thereof have the following beneficial effects:
1. According to the application, the cyclone separator and the electrostatic adsorption plate are combined to be used, so that screening of any particle size ratio can be realized, the requirements of research of different particle sizes are met, dust adsorption and sinking are realized through power on-off of the electrostatic adsorption plate, the operation is convenient, the reduction degree of the electrostatic adsorption plate is high compared with the natural dust sinking state, and the follow-up simulation is more real.
2. The cyclone separator separation particle size and the electrostatic adsorption plate adsorption particle size are adjusted by adjusting the power of the electrostatic adsorption plate and the fan through the power adjusting device, so that the device is convenient to adjust, and the application range of the device is greatly widened.
3. The return pipe can flow back the gas after the electrostatic adsorption plate is adsorbed, so that the gas can be recycled, the whole device is an internal circulation system, and the external environment cannot be polluted.
4. The honeycomb tube, the flaring tube and the rectifying net are beneficial to rising and rectifying of air flow, so that air entering the collecting chamber is more uniform, dust adsorbed on the electrostatic adsorption plate is more uniform, and even sedimentation can be further realized when power is off.
5. The sedimentation chamber is arranged on the side door to facilitate taking and placing of the sampling device.
Drawings
FIG. 1 is a schematic diagram of a dust particle natural sedimentation simulation device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the operation of a cyclone separator according to an embodiment of the application;
fig. 3 is a schematic structural view of an electrostatic chuck plate according to an embodiment of the present application.
The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:
1-a fan; 2-an air guiding pipe; 3. 4-a one-way valve; 5-a return pipe; 6-a flow guiding pipe; 7-sliding rails; 8-a handle; 9-electrostatic adsorption plate; 10-conducting wires; 11-a control switch; 12-side door; 13-slide; 14-a settling chamber; 15-a collection chamber; 16-rectifying net; 17-honeycomb tube; 18-flaring the tube; 19-a cyclone separator; 20-a dust collector; 21-a dust box; 91-ceramic bottom plate; 92-electrode; 93-acrylic cover plate.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1, the device for simulating natural sedimentation of dust particles of the present invention specifically comprises the following structure.
The outlet of the fan 1 is connected with one end of the induced air pipe 2, and a one-way valve 3 is arranged at the outlet of the fan; the power of the wind turbine 1 can be regulated by a power regulator in order to regulate the wind speed.
The upper part of the induced draft tube 2 is provided with a dust box 21, the outlet of the induced draft tube 2 is connected with the inlet of a cyclone separator 19, and the upper part of the cyclone separator 19 is connected with a flaring tube 18 and a rectifying net 16. The dust box 21 is used for discharging dust, thereby forming an air flow containing the dust.
As shown in fig. 2, the air flow containing dust is tangentially introduced into the cyclone separator 19 from the inlet of the cyclone separator for rotary motion, the centrifugal force of the large-diameter dust particles is greatly thrown towards the outer layer of the cone, and the air flow is at the inner layer, so that the gas-solid separation is realized; the tangential velocity of the air flow increases with the decreasing radius of rotation of the cone portion of the separator, the air flow and the dust particles move in a downward spiral, and near the bottom of the cone of the separator, the air flow carries dust particles with smaller particle size, changes into upward rotation, is discharged from the upper outlet pipe, and is then introduced into the collecting chamber 15.
The cyclone separator 19 is provided with a dust collector 20 at the lower part, and dust particles with larger particle diameters fall into the dust collector 20 along the inner wall under the action of gravity.
A honeycomb tube 17 is also arranged between the flared tube 18 and the screen 16.
The collecting sedimentation tank comprises a collecting chamber 15 and a sedimentation chamber 14, wherein the bottom of the collecting chamber 15 is connected with a rectifying net 16, the top of the collecting chamber 15 is provided with an electrostatic adsorption plate 9, the tops of the collecting chamber 15 and the sedimentation chamber 14 are provided with sliding rails 7, and the upper parts of the collecting chamber 15 and the sedimentation chamber 14 are communicated, so that the electrostatic adsorption plate 9 moves along the sliding rails 7, and the electrostatic adsorption plate 9 is connected with a power supply.
It is further preferred that the lower part of the collecting chamber 15 is a cone-shaped structure, the small end of which is connected to the rectifying net 16. The side of the settling chamber 14 is provided with a side door 12.
The small particle size dust discharged by the cyclone separator 19 is scattered by the rectifying net 16 along with the airflow through the flaring pipe 18 and the honeycomb pipe 17, then enters the collecting chamber 15 from the inlet at the bottom of the collecting chamber 15 to form complex gas-solid mixed flow, and is adsorbed by the electrostatic adsorption plate 9 at the upper part.
The device also comprises a power adjusting device, wherein the electrostatic adsorption plate 9 and the fan 1 are connected with the power adjusting device, so that dust screening can be realized by adjusting the power of the electrostatic adsorption plate 9 and the fan 1.
The device further comprises a return pipe 5, one end of the return pipe 5 is connected with the side part of the collecting chamber 15, the other end of the return pipe 5 is connected with the induced air pipe 2, and the joint with the induced air pipe 2 is positioned between the one-way valve 3 and the dust box 21. The return pipe 5 is provided with a flow guide pipe 6.
The return pipe 5 is provided with a one-way valve 4.
The electrostatic adsorption plate 9 is electrified to adsorb dust particles, and meanwhile, the air flow in the collecting chamber 15 enters the cyclone separator again through the return pipe; after the electrostatic adsorption plate 9 adsorbs a certain amount of dust, the fan and all the one-way valves are closed, the electrostatic adsorption plate with dust particles is transferred into the settling chamber, the power is cut off to enable the dust particles to naturally settle on a slide 13 placed at the bottom of the settling chamber in advance, and after the settling process is finished, the electrostatic adsorption plate is moved back to the upper part of the collecting chamber.
As shown in fig. 3, the electrostatic chuck 9 includes a ceramic base plate 91 and an electrode 92 connected to each other, the electrode 92 being connected to a power source through a wire 10, the ceramic base plate 91 being for adsorbing dust. The electrostatic adsorption plate 9 further comprises an acrylic cover plate 93, a handle 8 can be arranged on the upper portion of the acrylic cover plate 93, and a user can move the electrostatic adsorption plate 9 through the handle 8.
The device further comprises a control system for controlling the sliding of the electrostatic chuck 9 and/or the switching of the power supply. And further the electrostatic chuck 9 can be electrically controlled.
The working process is as follows:
The air flow provided by the fan 1 enters the cyclone separator 19 through the air guiding pipe 2, the dust discharging box 21 is arranged at the middle section of the air guiding pipe, the sample falls into the air guiding pipe 2, enters the cyclone separator 19 along with the air flow, and after centrifugal separation and gravity separation, large particle dust falls into the dust collector 20 from the bottom of the cyclone separator 19, small particle dust rises in the cone of the cyclone separator 19 along with the air flow, enters the flaring pipe 18 from the upper outlet of the cyclone separator 19, passes through the honeycomb pipe 17 and the rectifying net 16, and enters the collecting chamber 15. The device is designed to have a dust particle size of generally 0-200 um, the honeycomb tube 17 is made of metal sheets with a certain width to eliminate low-frequency pulsation of air flow, and the rectifying net 16 is generally made of metal wires to increase turbulence. Dust particles entering the collecting chamber 15 are uniformly dispersed in the whole chamber along with the air flow, the control switch 11 is pressed, the electrostatic adsorption plate 9 arranged at the top of the dust collecting chamber 15 is electrified, the electrostatic adsorption plate 9 starts to adsorb the dust particles entering the collecting chamber 15, and meanwhile, the return pipe guides the gas-solid mixed air flow in the collecting chamber 15 back to the air guiding pipe 2 and enters the cyclone separator 19 along with the air flow provided by the fan 1 again, so that closed loop flow is formed. After the electrostatic adsorption plate 9 adsorbs a certain amount of dust, the electrostatic adsorption plate 9 is moved to a right sedimentation chamber 14 along the sliding rail 7, a slide glass and the like can be arranged at the bottom of the sedimentation chamber 14, the control switch 11 is closed, and after the electrostatic adsorption plate 9 is powered off, the dust naturally subsides to the slide glass 13, so that uniform dust distribution is realized.
In another aspect, the application provides an application of the device for simulating natural sedimentation of dust particles, which is particularly suitable for simulating natural sedimentation of dust on the surface of a photovoltaic panel, wherein the photovoltaic panel is arranged at the bottom of the sedimentation chamber 14.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. A dust particle natural settling simulation device, the device comprising:
the outlet of the fan (1) is connected with one end of the air guiding pipe (2), and a one-way valve (3) is arranged at the outlet of the fan;
The upper part of the induced draft tube (2) is provided with a dust box (21), the outlet of the induced draft tube (2) is connected with the inlet of the cyclone separator (19), and the upper part of the cyclone separator (19) is connected with a flaring tube (18) and a rectifying net (16);
The collecting sedimentation tank comprises a collecting chamber (15) and a sedimentation chamber (14), wherein the bottom of the collecting chamber (15) is connected with the rectifying net (16), an electrostatic adsorption plate (9) is arranged at the top of the collecting chamber (15), a sliding rail (7) is arranged at the tops of the collecting chamber (15) and the sedimentation chamber (14), and the upper parts of the collecting chamber (15) and the sedimentation chamber (14) are communicated, so that the electrostatic adsorption plate (9) moves along the sliding rail (7), and the electrostatic adsorption plate (9) is connected with a power supply;
The device also comprises a return pipe (5), one end of the return pipe (5) is connected with the side part of the collecting chamber (15), the other end of the return pipe (5) is connected with the induced air pipe (2), and the joint of the return pipe and the induced air pipe (2) is positioned between the one-way valve (3) and the dust box (21); the return pipe (5) is provided with a one-way valve (4);
The lower part of the collecting chamber (15) is a conical structure, and the small end of the conical structure is connected with the rectifying net (16).
2. The device according to claim 1, characterized in that the device further comprises power adjustment means, and the electrostatic suction plate (9) and the fan (1) are each connected to a power adjustment means for screening dust by adjusting the power of the electrostatic suction plate (9) and the fan (1).
3. The device according to claim 1, characterized in that the electrostatic adsorption plate (9) comprises a ceramic base plate (91) and an electrode (92) connected to each other, the electrode (92) being connected to a power source, the ceramic base plate (91) being intended to adsorb dust.
4. The device according to claim 1, characterized in that it further comprises a honeycomb tube (17), said honeycomb tube (17) being arranged between said flared tube (18) and the rectifying net (16).
5. The device according to claim 1, characterized in that the sides of the settling chamber (14) are provided with side doors (12).
6. The device according to claim 1, characterized in that it further comprises a control system for controlling the sliding of the electrostatic attraction plate (9) and/or the switching of the power supply.
7. Use of the dust particle natural sedimentation simulation device according to any one of claims 1-6, characterized in that the device is used for the natural sedimentation simulation of dust on the surface of a photovoltaic panel, which is arranged at the bottom of the sedimentation chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111672233.2A CN114279909B (en) | 2021-12-31 | 2021-12-31 | Dust particle natural sedimentation simulation device and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111672233.2A CN114279909B (en) | 2021-12-31 | 2021-12-31 | Dust particle natural sedimentation simulation device and application thereof |
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| CN114279909A CN114279909A (en) | 2022-04-05 |
| CN114279909B true CN114279909B (en) | 2024-05-14 |
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| CN114279909A (en) | 2022-04-05 |
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