CN103234573B - Dust environment simulation equipment - Google Patents
Dust environment simulation equipment Download PDFInfo
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- CN103234573B CN103234573B CN201310140290.5A CN201310140290A CN103234573B CN 103234573 B CN103234573 B CN 103234573B CN 201310140290 A CN201310140290 A CN 201310140290A CN 103234573 B CN103234573 B CN 103234573B
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Abstract
The invention discloses dust environment simulation equipment, which comprises a dust generation device, a wind tunnel, a dust collector and a fan. The wind tunnel comprises a wind inlet section, a turbulence section and a testing section. The inner passage of the wind inlet section is horn-shaped. The dust outlet of the dust generation device is formed at the large-aperture end of the wind inlet section. The small-aperture end of the wind inlet section is communicated with the turbulence section. A turbulence structure is arranged on the turbulence section. One end of the testing section is communicated with the turbulence section and the other end of the testing section is communicated with the dust collector. The fan is communicated with the dust collector. An observation window which can be opened and closed is arranged on the testing section. A dust concentration sensor which is used for detecting internal dust concentration is arranged in the testing section and is communicated with an electric control device. The electric control device is electrically connected with the dust generation device. The simulation equipment can simulate a uniform-concentration dust environment, the concentration is adjustable and testing results obtained through product testing by using the simulation equipment are more accurate.
Description
Technical field
The present invention relates to a kind of dust environment simulation equipment, this analog machine can be used for the detection check field of experiment or instrument.
Background technology
Environment simulation technique is a new marginal technology, the imageneering technology of the various physical environment of main research and the experimental technique of product under simulated environment; Ground environment analog machine mainly contains following a few class: low temperature environment simulation, hot environment simulation, hygrothermal environment simulation, solar irradiation simulation, sand dust environmental simulation, rain environmental simulation, dipping simulation, sour environment simulation, the simulation of explosive atmospheric environment, accumulated ice/sleet environmental simulation and mould environmental simulation etc.Some environment are once the environment reliability test, accuracy correction or long duration test etc. that can carry out product interior after simulation out.Simulating immediate in upper subseries with dust atmosphere is that Sand Dust Environment is simulated, because sand and dust are different from the particle diameter of dust, the concentration, uniformity coefficient etc. of dust are difficult to control with sand and dust more more, therefore, temporarily do not have the analog machine that can simulate dust atmosphere more uniformly at present.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of dust environment simulation equipment, and this analog machine can simulate the dust atmosphere of even concentration, and concentration is adjustable, and the test structure that the test utilizing this analog machine to carry out product obtains is more accurate.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of dust environment simulation equipment, comprise dust generator, wind-tunnel, fly-ash separator and blower fan, described wind-tunnel comprises wind inlet section, turbulent section, test section, the internal channel flue of described wind inlet section, the meal outlet of described dust generator is arranged at the heavy caliber end of wind inlet section, and the small-caliber end of wind inlet section is communicated with turbulent section, and this turbulent section is provided with turbulent structure; Test section one end and turbulent section circulate, the other end is communicated with described fly-ash separator, described blower fan is communicated with fly-ash separator, described test section is provided with view window to be opened/closed, the sensor of dust concentration detecting inner dust concentration is provided with in test section, this sensor of dust concentration is communicated with electric control gear, and this electric control gear and dust generator electrically connect.
As the preferred scheme of one, described turbulent structure comprises expanding turbulent flow passageway, and the bore of this expanding turbulent flow passageway is increased to test section gradually by the small-caliber end of wind inlet section.
As the preferred scheme of one, the passage bore of described expanding turbulent flow passageway increases gradually and forms circular cone table top.
As the preferred scheme of one, described dust generator comprises dust feeder hopper, stirs output room, is with conveying device, disperses dispenser and dust delivery line; Dust feeder hopper is installed on the upper port stirring and export room, dust feeder hopper is fixed with stretch into stir and exports indoor stirring poking device, the described base plate exporting room that stirs is provided with discharging opening, this stirring export the sidewall of room be provided be communicated with discharging opening pass through mouth, the conveying zone face of described band conveying device is arranged at the below of discharging opening, described dispersion dispenser is communicated with by mouth will carry the dust airborne dust on zone face, described dust delivery line is communicated with dispersion dispenser, and this dust delivery line is communicated with compressed air inlet.
As the preferred scheme of one, described dispersion dispenser comprises shell, rotates the hairbrush be installed on shell, and this shell is communicated with passing hole, and this hairbrush is driven by propulsion system and rotates, it is tangent with conveying zone face that hairbrush rotates the maximum circular trace produced, and described shell is provided with supply air port.
As the preferred scheme of one, the propulsion system that described stirring poking device comprises shaft, material poking fork and drives shaft to rotate, this shaft vertically rotates to be installed on dust feeder hopper and to extend to stir and exports indoor, described material poking fork comprises fixed head and is arranged at several fork plates of fixed head periphery circumference uniform distribution, space between adjacent two fork plates forms material toggling space, the fixed head of described material poking fork is fixed on shaft, clearance fit between the bottom surface of material poking fork and the upper surface of base plate.
As the preferred scheme of one, described test section is provided with concentration display screen, and this concentration display screen is connected with electric control gear.
After have employed technique scheme, effect of the present invention is: because the wind-tunnel in this analog machine arranges turbulent result, dust enters into after in wind-tunnel, through turbulent flow, dust is spread in test section uniformly, test section offers observation ward, putting into of product can be convenient to, thus guarantee the structure more true and accurate of the test of product, and the sensor of dust concentration being arranged on test section can detect concentration inside in real time, there is electric control gear to control the dust output quantity of dust generator again, thus control the dust atmosphere that can obtain a certain even concentration more accurately.Like this for the test of product provides good environmental baseline, the accuracy of test findings and validity are improved.
Again because described dust generator comprises dust feeder hopper, stirs output room, is with conveying device, disperses dispenser and dust delivery line, dust feeder hopper is installed on the upper port stirring and export room, dust feeder hopper is fixed with stretch into stir and exports indoor stirring poking device, the described base plate exporting room that stirs is provided with discharging opening, this stirring export the sidewall of room be provided be communicated with discharging opening pass through mouth, the conveying zone face of described band conveying device is arranged at the below of discharging opening, described dispersion dispenser is communicated with by mouth will carry the dust airborne dust on zone face, described dust delivery line is communicated with dispersion dispenser, this dust delivery line is communicated with compressed air inlet, therefore, the dust of this dust generator is entered by discharging opening, the thickness of base plate, the size of discharging opening, and the transfer rate of band conveying device can be determined to be delivered to the Dust Capacity in dispersion dispenser, due to, the thickness of base plate, the size setting of discharging opening is consistent, so only need the transfer rate of control cincture conveying device can change dust operational throughput, and then dust concentration value in real-time monitoring test section can be facilitated.
Again because described dispersion dispenser comprises shell, rotates the hairbrush be installed on shell, this shell is communicated with passing hole, this hairbrush is driven by propulsion system and rotates, it is tangent with conveying zone face that hairbrush rotates the maximum circular trace produced, described shell is provided with supply air port, therefore, dispersion dispenser by the abundant airborne dust in the enclosure of the dust on conveying belt, thus can guarantee that dust fully exports.
Again because described stirring poking device comprises shaft, material poking fork and the propulsion system driving shaft to rotate, this shaft vertically rotates to be installed on dust feeder hopper and to extend to stir and exports indoor, described material poking fork comprises fixed head and is arranged at several fork plates of fixed head periphery circumference uniform distribution, space between adjacent two fork plates forms material toggling space, the fixed head of described material poking fork is fixed on shaft, clearance fit between the bottom surface of material poking fork and the upper surface of base plate, therefore, material poking fork is driven by shaft to be dialled in discharging opening by intermittent for the dust stirring output indoor, when guaranteeing each discharging, discharging opening is interior clogs full dust, thus improve the precision of dust output.The smooth output that shaft is dust provides convenient, avoids the situation that upper strata dust hardens or lower leakage is not smooth to occur.
As the preferred scheme of one, described test section is provided with concentration display screen, and this concentration display screen is connected with electric control gear, therefore, and can dust concentration situation in observation test section more intuitively.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structural representation of the dust generator of the embodiment of the present invention;
In accompanying drawing: 1. dust generator; 11. dust feeder hoppers; 12. stir output room; 121. base plate; 122. discharging opening; 13. band conveying devices; 14. dispersion dispensers; 15. dust delivery lines; 151. air inlet; 16. stir poking device; 161. stirring motor; 162. main shaft; 163. material poking fork; 164. first puddlers; 165. backgauge compacting blocks; 166. second puddlers; 2. wind-tunnel; 21. wind inlet sections; 22. turbulent sections; 23. test sections; 3. fly-ash separator; 4. blower fan; 5. sensor of dust concentration; 6. view window; 7. air velocity transducer; 8. electric control gear.
Embodiment
Below by specific embodiment, the present invention is described in further detail.
As shown in Figure 1, 2, a kind of dust environment simulation equipment, comprise dust generator 1, wind-tunnel 2, fly-ash separator 3 and blower fan 4, described wind-tunnel 2 comprises wind inlet section 21, turbulent section 22, test section 23, the internal channel flue of described wind inlet section, the meal outlet of described dust generator 1 is arranged at the heavy caliber end of wind inlet section 21, and the small-caliber end of wind inlet section 21 is communicated with turbulent section 22, and this turbulent section 22 is provided with turbulent structure; Described turbulent structure comprises expanding turbulent flow passageway, and the bore of this expanding turbulent flow passageway is increased to test section 23 gradually by the small-caliber end of wind inlet section 21.Wherein, the mode that internal diameter increases is linear increase, and thus the passage bore of described expanding turbulent flow passageway increases gradually and forms circular cone table top.Certainly, also can increase for arc curve, namely described expanding turbulent flow passageway is after axially cuing open, and the hatching line that its internal orifice wall is formed is arc curve shape.
Test section 23 one end and turbulent section 22 circulate, and the other end is communicated with described fly-ash separator 3, and the bore passage cross section of test section 23 is circular.Described blower fan 4 is communicated with fly-ash separator 3.Described test section 23 is provided with concentration display screen and view window to be opened/closed 6, and this view window 6 can observe inner situation, and also puts into window as product.The sensor of dust concentration 5 detecting inner dust concentration is provided with in detection segment, detection segment outer wall is provided with concentration display screen, this sensor of dust concentration 5, concentration display screen are all communicated with electric control gear 8, and this electric control gear 8 electrically connects with dust generator 1.This sensor of dust concentration 5 can arrange one in theory, or can arrange multiple, and multiple sensor of dust concentration 5 is uniform on a certain xsect of test section 23, thus can detect the dust concentration of multiple spot, confirms that whether the concentration of this detection segment is even.
Described dust generator 1 comprises dust feeder hopper 11, stirs output room 12, is with conveying device 13, disperses dispenser 14 and dust delivery line 15, dust feeder hopper 11 is installed on the upper port stirring and export room 12, dust feeder hopper 11 is fixed with the stirring poking device 16 stretching into and stir and export in room 12, the described base plate 121 exporting room 12 that stirs is provided with discharging opening 122, this stirring export the sidewall of room 12 be provided be communicated with discharging opening 122 pass through mouth, the conveying zone face of described band conveying device 13 is arranged at the below of discharging opening 122, described dispersion dispenser 14 is communicated with by mouth will carry the dust airborne dust on zone face, described dust delivery line 15 is communicated with dispersion dispenser 14, this dust delivery line 15 is communicated with compressed air inlet.
Described dispersion dispenser 14 comprises shell, rotates the hairbrush be installed on shell, this shell is communicated with passing hole, this hairbrush is driven by propulsion system and rotates, these propulsion system are the motor be fixed on shell, the output shaft of motor is communicated with brush axle, it is tangent with conveying zone face that hairbrush rotates the maximum circular trace produced, and described shell is provided with supply air port.Pressurized air effect makes dust delivery line 15 produce air flowing, and then dust delivery line 15 produces negative pressure, and the shell of dispersion dispenser 14 includes dust air and is just brought into dust delivery line 15, and then is drained in the wind inlet section 21 of wind-tunnel 2.
Described stirring poking device 16 comprises shaft, material poking fork 163 and the propulsion system driving shaft to rotate, these propulsion system are the stirring motor 161 being fixed on dust feeder hopper 11 upper end, this shaft comprises vertical rotation and is installed on dust feeder hopper 11 and extends to the main shaft 162 stirring and export in room 12, this main shaft 162 is provided with the first puddler 164 and the second puddler 166, first puddler 164 extends to dust feeder hopper 11 by the lower end complications of main shaft 162, and press close to the inwall of dust feeder hopper, the section of the pressing close to shape of this first puddler 164 and inner wall shape approximate match.Second puddler 166 stirs stirring the dust exported in room 12, making in dust feeder hopper 11 and stirring the dust exported in room 12 to loosen, being convenient to the discharging of dust whereabouts by stirring.Described material poking fork 163 comprises fixed head and is arranged at several fork plates of fixed head periphery circumference uniform distribution, in the present embodiment, the number of fork plate is six, space between adjacent two fork plates forms material toggling space, the fixed head of described material poking fork 163 is fixed on shaft, clearance fit between the bottom surface of material poking fork 163 and the upper surface of base plate 121, when material poking fork 163 is by main shaft 162 driven rotary, material toggling gap intermittence between fork plate is communicated with discharging opening 122, thus dust can be made to dial in discharging opening 122, and then be delivered in dispersion dispenser 14 by band conveying device 13.Reach consistent to make the Dust Capacity entered in discharging opening 122 at every turn, the inwall stirring output room 12 is provided with backgauge compacting block 165, the lower plane of this backgauge compacting block 165 parallel with the upper plane of fork plate and between leave 1, the gap of 2mm, when fork plate rotates, dust on fork plate above plane is blocked by backgauge compacting block 165, material toggling space between fork plate is then passed through from the below of backgauge compacting block 165, dust in material toggling space is compacted, thus can guarantee to keep basically identical into the density of the dust in material toggling space, and then ensure that the Dust Capacity of discharging opening 122 is consistent.
The course of work of the present invention is: the generation dust that dust generator is quantitative is also injected in wind-tunnel 2, produces air and flows, produce negative pressure and sucked by dust, because wind inlet section 21 is tubaeform, therefore at wind inlet section 21 in wind-tunnel 2 by blower fan 4.When entering into small-bore by heavy caliber, dust-contained airflow flow velocity increases, then enter into again turbulent section 22 at once, and the passage of turbulent section 22 becomes circular cone table top, therefore, dust-contained airflow spreads, flow velocity rapid drawdown, make dust-contained airflow that turbulent flow occur, thus dust is diffused into uniformly in the environment of test section 23, through sensor of dust concentration 5 detect can on concentration display screen display density intuitively, after on the xsect of test section 23, difference arranges four sensor of dust concentration 5, concentration deviation between each sensor of dust concentration 5, about 5%, conforms with the regulations.Like this, by product to be tested, such as can long duration test under test section 23 carries out dust atmosphere, the functional reliability test under dust atmosphere; Also the accuracy verification of instrument can be carried out at test section 23, can the sensor of dust concentration 5 of prior confirmation sensor of dust concentration 5 and a correction to be detected accurately be put in test section 23, detection obtains two concentration values, again correction adjustment is carried out to sensor of dust concentration 5 to be corrected, finally make it accurate, now, higher to the uniformity requirements of the dust of test section 23, the dust environment simulation equipment in the present invention meets accuracy verification requirement together completely.
Claims (6)
1. a dust environment simulation equipment, comprise dust generator, wind-tunnel, fly-ash separator and blower fan, it is characterized in that: described wind-tunnel comprises wind inlet section, turbulent section, test section, the internal channel flue of described wind inlet section, the meal outlet of described dust generator is arranged at the heavy caliber end of wind inlet section, the small-caliber end of wind inlet section is communicated with turbulent section, and this turbulent section is provided with turbulent structure; Test section one end and turbulent section circulate, the other end is communicated with described fly-ash separator, described blower fan is communicated with fly-ash separator, described test section is provided with view window to be opened/closed, the sensor of dust concentration detecting inner dust concentration is provided with in test section, this sensor of dust concentration is communicated with electric control gear, and this electric control gear and dust generator electrically connect, and described dust generator comprises dust feeder hopper, stirs output room, is with conveying device, disperses dispenser and dust delivery line; Dust feeder hopper is installed on the upper port stirring and export room, dust feeder hopper is fixed with stretch into stir and exports indoor stirring poking device, the described base plate exporting room that stirs is provided with discharging opening, this stirring export the sidewall of room be provided be communicated with discharging opening pass through mouth, the conveying zone face of described band conveying device is arranged at the below of discharging opening, described dispersion dispenser is communicated with by mouth will carry the dust airborne dust on zone face, described dust delivery line is communicated with dispersion dispenser, and this dust delivery line is communicated with compressed air inlet.
2. a kind of dust environment simulation equipment as described in claim 1, is characterized in that: described turbulent structure comprises expanding turbulent flow passageway, and the bore of this expanding turbulent flow passageway is increased to test section gradually by the small-caliber end of wind inlet section.
3. a kind of dust environment simulation equipment as described in claim 2, is characterized in that: the passage bore of described expanding turbulent flow passageway increases gradually and forms circular cone table top.
4. a kind of dust environment simulation equipment as described in claim 3, it is characterized in that: described dispersion dispenser comprises shell, rotates the hairbrush be installed on shell, this shell is communicated with passing hole, this hairbrush is driven by propulsion system and rotates, it is tangent with conveying zone face that hairbrush rotates the maximum circular trace produced, and described shell is provided with supply air port.
5. a kind of dust environment simulation equipment as described in claim 4, it is characterized in that: the propulsion system that described stirring poking device comprises shaft, material poking fork and drives shaft to rotate, this shaft vertically rotates to be installed on dust feeder hopper and to extend to stir and exports indoor, described material poking fork comprises fixed head and is arranged at several fork plates of fixed head periphery circumference uniform distribution, space between adjacent two fork plates forms material toggling space, the fixed head of described material poking fork is fixed on shaft, clearance fit between the bottom surface of material poking fork and the upper surface of base plate.
6. a kind of dust environment simulation equipment as described in claim 5, is characterized in that: described test section is provided with concentration display screen, and this concentration display screen is connected with electric control gear.
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| CN201310140290.5A CN103234573B (en) | 2013-04-22 | 2013-04-22 | Dust environment simulation equipment |
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| CN201310140290.5A CN103234573B (en) | 2013-04-22 | 2013-04-22 | Dust environment simulation equipment |
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| CN103234573B true CN103234573B (en) | 2015-03-18 |
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