CN205246489U - Pollen suspension speed sensor - Google Patents
Pollen suspension speed sensor Download PDFInfo
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- CN205246489U CN205246489U CN201520780037.0U CN201520780037U CN205246489U CN 205246489 U CN205246489 U CN 205246489U CN 201520780037 U CN201520780037 U CN 201520780037U CN 205246489 U CN205246489 U CN 205246489U
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Abstract
The utility model relates to a pollen suspension speed sensor, including variable frequency speed device, exhaust fan, slowly a fast tapered section of thick bamboo, air current are adjusted the accelerating tube, are gathered a class cover, the powder platform is carried in the mass flow screening, carry a powder platform height regulating mechanism, colored adjustable cold light lamp and experiment bench to go up air current guiding hole pipe, observing tube, sealed ramp gate, probe tachymeter, direction mesh screen, therapeutic method to keep the adverse qi flowing downward stream guiding hole pipe, second grade air current adjustment mesh screen, one -level air current adjustment mesh screen, air current, the observing tube middle section evenly is equipped with four observation windows in interval 90 all around, sealed ramp gate is located observing tube one side, a mass flow screening year powder platform is located and gathers under class cover, it is colored that adjustable cold light lamp is mobilizable installs on experiment bench, the utility model discloses can measure the novel pollen suspension speed sensor of pollen grain required air speed of when suspension, the blank of required air speed device when having filled in internal and measuring the suspension of pollen grain.
Description
(1) technical field
The present invention relates to a kind of pollen suspension speed measuring device; Belong to particle suspension velocity measuring technique field, relate in particular to a kind of measure pollen grain suspend time required air velocity novel pollen suspension speed measuring device.
(2) background technology
In the time that air flow stream is straight up crossed solid particle, stream resistance and solid particle and be subject to buoyancy particle is moved upward, the gravity of particle self is straight down. Streaming under the acting in conjunction of resistance, buoyancy and gravity, solid particle can be in poised state, and solid particle will be on a horizontal plane and be fluctuation status, neither rises and does not also decline. Therefore, making solid particle air velocity straight up under suspended state be defined as floating velocity.
Pneumatic Technology because it is drawn materials easily, simple, the environmental protection and energy saving of equipment, etc. feature, and be widely used in agricultural engineering field, and bringing into play increasing effect. Particularly, aspect crops pollination, improve crop yield thereby strength pollination can effectively improve pollination rate, there is far reaching significance to solving world food problem.
But at present the domestic research to the test of pollen floating velocity is always little, mainly calculates test as main taking theory, this test exists complex operation, calculation of complex, data error large. The material suspended speed measuring equipment of domestic existing mechanical type is the manual venetian blind type air quantity adjusting mechanism of many employings, the poor-performing of even regulation wind speed, cause the rate of change of change wind speed unstable, and be subject to the interference of external environment condition larger, therefore measuring accuracy is lower. Wind speed too hour, may inhale less than in taper inspection section, regulates a little shutter air quantity adjusting mechanism, causes again material to pass flabellum go out outside cylinder because wind speed is excessive, cannot test by material.
For meeting the needs of transgenosis pollen transmission rule research, we update and are perfect on the basis of the material suspended device of tradition, development and design pollen floating velocity determinator, realize the accurate control lower than 0.5m/s wind speed, by the upper pollen suspended state of direct observation pollen sieve, with the wind speed of probe-type temperature-sensitive anemobiagraph the real time measure pollen sieve present position, can realize the accurate measurement of pollen suspension wind speed, avoided traditional material suspended velocity determinator test step loaded down with trivial details, be difficult to the problems such as Accurate Determining levitation position.
(3) summary of the invention
The invention provides a kind of pollen suspension speed measuring device, this device utilizes multiple air flow adjustable pipe and Multi-stage airflow adjustment mesh screen, frequency converter, blower fan to cooperatively interact and regulates air velocity and intensity, by the outstanding pollen state of color cold light lamp, utilize probe tachymeter accurately to measure the wind speed under pollen suspended state simultaneously.
A kind of pollen suspension speed measuring device, comprises that RHVC, exhaust blower, overdraught pilot hole pipe, inspection section, sealed sliding sect, the tachymeter of popping one's head in, guiding mesh screen, downstream pilot hole pipe, secondary air flow are adjusted mesh screen, one-level air-flow is adjusted mesh screen, the slow tapered barrel of air-flow, gas flow-regulating accelerating tube, conflux cover, afflux screening year powder platform, carried powder platform height adjustment mechanism, colored adjustable cold light modulation and experimental stand.
Described RHVC is connected with exhaust blower, and exhaust blower air inlet and inspection section are suitable for reading to be tightly connected, and overdraught pilot hole pipe is positioned under exhaust blower air inlet and is closely stuck in inside, inspection section upper end; 90 ° of inspection section stage casing circumferentially-spaced are evenly provided with four observation windows, and observation window face seal studs with high transparent organic glass; Sealed sliding sect is positioned at inspection section one side, is made up of slideway and the sliding door being arranged in slideway; Sliding door can slide up and down along inspection section vertical direction; This design can realize the pop one's head in adjustment of the position on inspection section vertical direction of airspeedometer, can ensure again sealing; Described probe tachymeter is popped one's head in measuring wind speed, and measuring wind speed probe is arranged on sealed sliding sect by the sealing of rubber stopple, and measuring wind speed probe is adjustable along the position of barrel radial direction in inspection section inside.
Inside, observation window lower end is from top to bottom provided with guiding mesh screen and downstream pilot hole pipe successively; Guiding mesh screen and downstream pilot hole pipe position are closely stuck in inspection section; The slow conically shaped of air-flow is suitable for reading to be tightly connected with inspection section end opening; Secondary air flow adjusts mesh screen and one-level air-flow adjustment mesh screen is from top to bottom closely stuck in the slow conically shaped end opening of air-flow successively; Guiding mesh screen, secondary air flow are adjusted the aperture of the mesh of mesh screen and one-level air-flow adjustment mesh screen and are slightly strengthened successively, and guiding mesh screen aperture is 5～10 times of pollen particle diameter; Gas flow-regulating accelerating tube is suitable for reading to be tightly connected with the slow conically shaped end opening of air-flow, and gas flow-regulating accelerating tube diameter is less than inspection section and its inner wall smooth, and conflux cover is suitable for reading to be tightly connected with gas flow-regulating accelerating tube end opening. Downstream pilot hole pipe is column type, and its inside is covered with and is the hole that cellular arrangement runs through up and down; The slow conically shaped of air-flow is circular cone bench-type, and its bore suitable for reading is greater than end opening bore; Gas flow-regulating accelerating tube is column type, inner wall smooth, and its bore is less than inspection section bore; Conflux cover is circular cone bench-type, and its bore suitable for reading is less than its end opening bore.
Described afflux screening is carried powder platform and is positioned under conflux cover, and by carrying, powder platform height adjustment mechanism is mobilizable to be fixed on test-bed, and it is adjustable that powder platform height is carried in afflux screening. Afflux screening is carried powder platform for placing the sieve of different mesh sieve apertures, is used for carrying pollen; Can filter out the pollen of granularity in same grade by changing the sieve of different meshes, netted compass screen surface not only can make pollen tiling evenly, can also effectively prevent that pollen gathering is agglomerating, the air-flow that the conflux cover on its top can be assembled surrounding evenly picks up pollen by the mesh-structured of mesh sieve.
Described mobilizable being arranged on experimental stand of colored adjustable cold light modulation, colored adjustable cold light modulation height is adjustable; Colored adjustable cold light modulation can be adjusted according to the color of pollen grain color and the brightness of the light of lamp, in conjunction with the background color of contrast reference, makes observer more significantly clearly observe the suspended state of pollen.
Beneficial effect
The present invention can measure pollen grain suspend time required air velocity novel pollen suspension speed measuring device, filled up domestic measure pollen grain suspend time required air velocity device blank. The formulation that the invention of pollen floating velocity determinator can be the research of genetically modified plants pollen transmission rule, safe isolation technology specification provides useful reference. The design at observation window and sealed sliding sect on inspection section, the convenient mobility status of observing pollen, can realize the pop one's head in adjustment of the position on inspection section vertical direction of airspeedometer, can ensure again sealing.
The removable mesh mesh sieve that afflux screening is carried on powder platform can filter out the pollen of granularity in same grade, and netted compass screen surface not only can make pollen tiling evenly, can also effectively prevent that pollen gathering is agglomerating.
Adjustable cold light modulation can be adjusted according to the color of pollen grain color and the brightness of the light of lamp, in conjunction with the background color of contrast reference, makes observer more significantly clearly observe the suspended state of pollen.
Package unit volume is little, simple to operate, easy to loading and unloading.
(4) brief description of the drawings
Fig. 1 is complete machine structure schematic diagram of the present invention;
Fig. 2 is the part-structure schematic diagram at sealed sliding of the present invention sect;
Fig. 3 is the structural representation that secondary air flow of the present invention is adjusted mesh screen;
Fig. 4 is the structural representation that one-level air-flow of the present invention is adjusted mesh screen;
Fig. 5 is the front view that powder platform is carried in afflux screening of the present invention;
Fig. 6 is the top view that powder platform is carried in afflux screening of the present invention;
Fig. 7 is the structural design drawing of air-flow guiding pipe of the present invention;
In figure: 1. 8. years powder platform height adjustment mechanisms of tachymeter, the 9. test-bed 10. affluxs screenings of popping one's head in of the RHVC 2. exhaust blower 3. overdraught guide pipe 4. inspection section 5. colored adjustable cold light modulations 7. in sealed sliding sect 6. are carried the slow tapered barrel 14. one-level air-flows of powder platform 11. conflux cover 12. gas flow-regulating accelerating tube 13. air-flow and adjusted mesh screen 15. secondary air flows and adjust mesh screen 16. downstream guide pipes 17. mesh screen that leads.
(5) detailed description of the invention
Following detailed description of the invention is used for illustrating the present invention, but is not used for limiting the scope of the invention:
Embodiment 1
RHVC involved in the present invention, probe tachymeter, colored adjustable cold light modulation etc. be all can be commercial product, the probe tachymeter that the present embodiment uses is China Sheng DT-8880 airspeedometer, the colored adjustable cold light modulation using is thousand writing brush LED cold light lamps, and the RHVC of use is star event US type speed regualtion of AC motor device.
In the present invention: guiding mesh screen aperture is greater than pollen particle diameter, can, to carrying out secondary rectification by the air-flow of lower guiding eyelet pipe, slow down air velocity and again air-flow be carried out to secondary guiding, the air-flow that enters inspection section is stablized gently. Can carry out certain impact and make to assemble agglomerating pollen grain and scatter being uniformly about to enter the pollen grain of inspection section.
Downstream guide pipe can be realized the adjustment of leading of air-flow to entering inspection section, slows down air velocity simultaneously, makes to enter air-flow in inspection section stable gently.
It is rounded that secondary air flow is adjusted mesh screen, mesh is slightly larger than guiding mesh screen, can carry out secondary adjustment to the air-flow of adjusting mesh screen by one-level air-flow, can slow down air velocity, the air-flow that can change rolling again leads and cuts apart, also can carry out certain impact to the pollen of assembling simultaneously, make pollen grain as far as possible dispersed.
It is rounded that one-level air-flow is adjusted mesh screen, mesh is slightly larger than secondary air flow and adjusts mesh screen, can adjust for the first time the air-flow that enters the slow tapered barrel of air-flow, can slow down air velocity, the air-flow that can change rolling again leads and cuts apart, also can carry out certain impact to the pollen of assembling simultaneously, make pollen grain as far as possible dispersed.
When use, package unit (Fig. 1) is fixed on suitable workbench, change according to the size of surveyed pollen particle diameter the mesh sieve that powder platform (10) is carried in suitable afflux screening, filter out the pollen of particle diameter in same one-level, make pollen evenly be laid in mesh sieve surface, will carry powder platform (10) by a year powder platform height adjustment mechanism (8) and be adjusted to proper height.
Open colored adjustable cold light modulation (6), according to color and the brightness of pollen color adaptation light.
Open exhaust blower (2); make the air quantity of blower fan slowly become large by zero by RHVC; until pollen is picked up; pollen grain enters gas flow-regulating accelerating tube (12) through the collection of conflux cover (11) and accelerates; make pollen have certain initial velocity, guarantee that pollen can enter inspection section (4).
After pollen enters the slow tapered barrel of air-flow (13), speed starts slowly to decline, adjust through the one-level air-flow adjustment net (14) in tapered barrel and secondary air flow net (15) carries out twice deceleration, shock, guiding cutting to the pollen flow rolling after speed change, the speed of pollen flow is tended towards stability.
The cellular hole tubular construction that pollen flow enters lower pilot hole pipe (16) is again to the pollen flow adjustment of leading, after the air-flow guiding cutting of guiding mesh screen (17) and slow effect of impact, pollen flow scatter and uniformly so that speed is up extremely slowly, finally under air drag effect, stop uply, be suspended in inspection section (4).
Adjust the height of probe tachymeters (7) and the horizontal level in inspection section (4) thereof by sealed sliding sect (5), the tachymeter (7) that makes to pop one's head in is put and is detected in right position.
After measurement finishes, close probe tachymeter (7), strengthen blower fan (2) air quantity pollen is discharged, close blower fan (2), close color cold light lamp (6); Experiment finishes.
Claims (1)
1. a pollen suspension speed measuring device, is characterized in that comprising that RHVC, exhaust blower, overdraught pilot hole pipe, inspection section, sealed sliding sect, the tachymeter of popping one's head in, guiding mesh screen, downstream pilot hole pipe, secondary air flow are adjusted mesh screen, one-level air-flow is adjusted mesh screen, the slow tapered barrel of air-flow, gas flow-regulating accelerating tube, conflux cover, afflux screening year powder platform, carried powder platform height adjustment mechanism, colored adjustable cold light modulation and experimental stand;
Described RHVC is connected with exhaust blower, and exhaust blower air inlet and inspection section are suitable for reading to be tightly connected, and overdraught pilot hole pipe is positioned under exhaust blower air inlet and is closely stuck in inside, inspection section upper end; 90 ° of inspection section stage casing circumferentially-spaced are evenly provided with four observation windows, and observation window face seal studs with high transparent organic glass; Sealed sliding sect is positioned at inspection section one side, is made up of slideway and the sliding door being arranged in slideway; Sliding door can slide up and down along inspection section vertical direction; Described probe tachymeter is popped one's head in measuring wind speed, and measuring wind speed probe is arranged on sealed sliding sect by the sealing of rubber stopple, and measuring wind speed probe is adjustable along the position of barrel radial direction in inspection section inside;
Inside, observation window lower end is from top to bottom provided with guiding mesh screen and downstream pilot hole pipe successively; Guiding mesh screen and downstream pilot hole pipe position are closely stuck in inspection section; The slow conically shaped of air-flow is suitable for reading to be tightly connected with inspection section end opening; Secondary air flow adjusts mesh screen and one-level air-flow adjustment mesh screen is from top to bottom closely stuck in the slow conically shaped end opening of air-flow successively; Guiding mesh screen, secondary air flow are adjusted the aperture of the mesh of mesh screen and one-level air-flow adjustment mesh screen and are slightly strengthened successively, and guiding mesh screen aperture is 5～10 times of pollen particle diameter; Gas flow-regulating accelerating tube is suitable for reading to be tightly connected with the slow conically shaped end opening of air-flow, and gas flow-regulating accelerating tube diameter is less than inspection section and its inner wall smooth, and conflux cover is suitable for reading to be tightly connected with gas flow-regulating accelerating tube end opening; Downstream pilot hole pipe is column type, and its inside is covered with and is the hole that cellular arrangement runs through up and down; The slow conically shaped of air-flow is circular cone bench-type, and its bore suitable for reading is greater than end opening bore; Gas flow-regulating accelerating tube is column type, inner wall smooth, and its bore is less than inspection section bore; Conflux cover is circular cone bench-type, and its bore suitable for reading is less than its end opening bore;
Described afflux screening is carried powder platform and is positioned under conflux cover, and by carrying, powder platform height adjustment mechanism is mobilizable to be fixed on test-bed, and it is adjustable that powder platform height is carried in afflux screening;
Described mobilizable being arranged on experimental stand of colored adjustable cold light modulation, colored adjustable cold light modulation height is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520780037.0U CN205246489U (en) | 2015-10-10 | 2015-10-10 | Pollen suspension speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520780037.0U CN205246489U (en) | 2015-10-10 | 2015-10-10 | Pollen suspension speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246489U true CN205246489U (en) | 2016-05-18 |
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ID=55945562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520780037.0U Withdrawn - After Issue CN205246489U (en) | 2015-10-10 | 2015-10-10 | Pollen suspension speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205246489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136625A (en) * | 2015-10-10 | 2015-12-09 | 山东农业大学 | Pollen-suspension speed measuring device |
| CN113091473A (en) * | 2021-03-26 | 2021-07-09 | 华北理工大学 | Wiping-free observation window device of closed heating furnace |
-
2015
- 2015-10-10 CN CN201520780037.0U patent/CN205246489U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136625A (en) * | 2015-10-10 | 2015-12-09 | 山东农业大学 | Pollen-suspension speed measuring device |
| CN105136625B (en) * | 2015-10-10 | 2018-03-30 | 山东农业大学 | A kind of pollen suspension speed measuring device |
| CN113091473A (en) * | 2021-03-26 | 2021-07-09 | 华北理工大学 | Wiping-free observation window device of closed heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160518 Effective date of abandoning: 20180330 |
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| AV01 | Patent right actively abandoned |