CN207763918U - Agricultural material floating velocity test device - Google Patents
Agricultural material floating velocity test device Download PDFInfo
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- CN207763918U CN207763918U CN201820038952.6U CN201820038952U CN207763918U CN 207763918 U CN207763918 U CN 207763918U CN 201820038952 U CN201820038952 U CN 201820038952U CN 207763918 U CN207763918 U CN 207763918U
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- barretter
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- flow field
- net
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Abstract
A kind of agricultural material floating velocity test device, including power and its regulator control system, flow field structure system and test system.Power and its regulator control system include centrifugal blower, Blower Housing, catch net, flow field connector, frequency converter.Flow field structure system includes grating pipe, flow straightening grid, flange, charge net, lower barretter, observation tube, upper barretter, resistance material net, feeding port, feeding door, splicing plate.Test system includes measured hole, Pitot tube, air velocity transducer, air conduit, scale, observation platform, ladder, work chair, Working table.The utility model uses air blowing type structure, is close with operating mode is actually cleaned, and it is practical to measure more fitting.Wind turbine is directly connected with flow field pipeline, and pipeline structure is compact, the pressure loss is small, airflow direction is without change, and flow straightening grid ensure that the steady of air-flow, and it is more accurate to measure.The measurement for each component material suspended velocity that can be used for after the crops harvest-seed extraction such as wheat, rice, millet, buckwheat, oat, highland barley.
Description
Technical field
The utility model belongs to agricultural material air dynamic behaviour field of measuring technique, is related to a kind of test agricultural material
The experimental rig of floating velocity.
Background technology
Floating velocity refer to it is material suspended in air-flow straight up when air velocity.Floating velocity is one important
Air dynamic behaviour parameter.The measurement of floating velocity has important meaning for clean separation, Geldart-D particle etc. of research material
Justice.It since agricultural material individual difference is big, is difficult to obtain accurate floating velocity using theoretical calculation, so general using examination
The method of test amount obtains floating velocity.Existing measuring device is mostly air suction type, i.e., creating negative pressure using wind turbine makes material
It is picked up and is suspended, in actual condition, agricultural material is in positive pressure environment mostly.That there is also pipelines is tediously long for existing measuring device
The problem of, therefore it is necessary to a kind of agricultural material floating velocity test device of design.
Invention content
The utility model is intended to provide a kind of agricultural material floating velocity simple in structure, easy to operate, under positive pressure environment
Test device.
The utility model is realized using following technical scheme：
The utility model agricultural material floating velocity test device include power and its regulator control system, flow field structure system and
Test system.The power and its regulator control system includes centrifugal blower, Blower Housing, catch net, flow field connector, frequency converter.
Centrifugal blower is connected to Blower Housing side, and centrifugal fan air outlet straight up, cover by centrifugal blower air inlet through hollow shaft, air inlet
It is stamped nylon catch net.The lower end of the flow field connector is square aperture, and top is circular open, the lower end of flow field connector and wind
The air outlet of casing body connects, and frequency converter is arranged on the table.The flow field structure system includes grating pipe, honeycomb screen
Grid, flange, charge net, lower barretter, observation tube, upper barretter, resistance material net, feeding port, feeding door, splicing plate.Grating pipe with
Lower barretter is round tubular, and diameter is consistent with the upper end of flow field connector, and the observation tube is upper coarse and lower fine conical pipe, lower end
Diameter is consistent with lower barretter, and the upper barretter is straight tube shape, and diameter is consistent with the upper end of observation tube.With flange by lattice
Barretter, lower barretter and observation tube, observation tube and upper barretter connect into overall structure under bank tube.It is whole built in the grating pipe
Grid is flowed, the junction of grating pipe and lower barretter is equipped with charge net.The lower barretter lower part side is equipped with feeding port,
Feeding port peripheral hardware curved surface feeding door, for feeding door with feeding port by hinge connection, feeding door passes through flat mouth hasp locking.On described
The top of barretter covers one layer of resistance material net.Splicing plate is placed in the top activity of the charge net.The test system includes
Measured hole, Pitot tube, air velocity transducer, air conduit, scale, observation platform, ladder, work chair, Working table.The lower barretter
Top side is equipped with measured hole, and Pitot tube and holder are provided at measured hole, and the air admission hole of the Pitot tube is arranged in lower current stabilization
In pipe, straight down, Pitot tube passes through measured hole horizontally moveable to air admission hole.The air velocity transducer is in lower current stabilization tube wall
Interior, measured hole lower section, air velocity transducer are connected by air conduit with Pitot.The scale is located at the outside of observation tube, mark
The top of ruler and the upper end of observation tube connect, and the lower end of scale and the bottom end of observation tube maintain an equal level, in scale side, pair of observation tube
Face is equipped with observation platform, and the observation platform is equipped with ladder, work chair and Working table, frequency converter and is placed on Working table.
Compared with prior art, the utility model has the following advantages that：（1）The utility model and existing most of air suction types
Measuring device is different, and using air blowing type structure, agricultural material blows low suspension in air-flow, this actually cleans work with agricultural material
Condition is close, and it is practical to measure more fitting.Positive pressure gas flow is easily achieved than negative pressure gas flow, and the power consumption of positive pressure gas flow is less than negative pressure gas flow
Required power consumption.（2）Different from existing most of measuring devices, utility model device keeps material outstanding using centrifugal blower air blowing
Floating, the centrifugal blower range of speeds is more than axial flow blower, and wind-force is powerful and concentrates, and it is more accurate to adjust rotating speed using frequency converter.This
The frequency converter of utility model device can real-time display rotation speed of fan numerical value, convenient for adjust.（3）The wind turbine of utility model device is straight
Connect and be connected with flow field pipeline, pipeline structure is compact, and the pressure loss in pipeline is small, wind turbine blowout airflow direction without change, and
It is equipped with flow straightening grid in the pipeline of flow field, further ensures the steady of air-flow, material is enable to be uniformly suspended within a certain height,
It is more accurate to measure.（4）On the basis of traditional pressure differential method velocity measurement, the test system of utility model device can directly in real time
It shows wind speed, wind pressure, air quantity and the epidemic disaster in institute's test tube road, eliminates intermediate manual conversion's link, it is simpler to measure operation
Just quick.（5）The air velocity range of utility model device is higher than the air velocity range of existing measuring device, can be used for surveying
The floating velocity for measuring more agricultural materials, after can be used for the crops harvest-seed extraction such as wheat, rice, millet, buckwheat, oat, highland barley
Each component material suspended velocity measurement.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the splicing plate structure schematic diagram of the utility model.
In figure：1, centrifugal blower, 2, Blower Housing, 3, catch net, 4, flow field connector, 5, frequency converter, 6, grating pipe, 7, whole
Flow grid, 8, flange, 9, charge net, 10, lower barretter, 11, observation tube, 12, upper barretter, 13, resistance material net, 14, feeding port,
15, feeding door, 16, splicing plate, 17, measured hole, 18, Pitot tube, 19, air velocity transducer, 20, air conduit, 21, scale, 22,
Observation platform, 23, ladder, 24, work chair, 25, Working table, 26, splicing wrench handle.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.
The agricultural material floating velocity test device of the utility model, including power and its regulator control system, flow field structure system
System and test system.Power and its regulator control system include centrifugal blower 1, Blower Housing 2, catch net 3, flow field connector 4, frequency converter
5.Flow field structure system includes grating pipe 6, flow straightening grid 7, flange 8, charge net 9, lower barretter 10, observation tube 11, upper current stabilization
Pipe 12, resistance material net 13, feeding port 14, feeding door 15, splicing plate 16.Test system includes measured hole 17, Pitot tube 18, wind speed biography
Sensor 19, air conduit 20, scale 21, observation platform 22, ladder 23, work chair 24, Working table 25.The utility model is integrally vertical
Arrangement, is blowing type measurement device.
The power and its regulator control system, centrifugal blower 1 are connected to the side of Blower Housing 2, are carried using centrifugal blower 1
For wind-force, 1 air outlet of centrifugal blower straight up, adopt by 1 air inlet through hollow shaft of centrifugal blower, air inlet coating nylon catch net 3
It is connected with and is fixed on Blower Housing 2, prevent from sucking sundries fine crushing, upset air-flow, pollution flow field pipeline, and ensure
Testing crew safety.The lower end of the flow field connector 4 is square aperture, and top is circular open, the lower end of flow field connector 4 and wind
The air outlet of casing body 2 connects, and frequency converter 5 is arranged on the table.Centrifugal blower 1 uses phase asynchronous electrical variable frequency adjustable speed
Machine regulates and controls motor speed using frequency converter 5, to regulate and control 1 rotating speed of centrifugal blower, changes wind-force, air velocity size.
The flow field structure system, grating pipe 6 are round tubular with lower barretter 10, and diameter is upper with flow field connector 4
End is consistent, and the observation tube 11 is upper coarse and lower fine conical pipe, and lower end diameter is consistent with lower barretter 10, the upper barretter 12
It is straight tube shape, diameter is consistent with the upper end of observation tube 11.With flange 8 by grating pipe 6 and lower barretter 10, lower barretter 10
Overall structure is connected into observation tube 11, observation tube 11 and upper barretter 12.Flow straightening grid 7 built in the grating pipe 7, for disappearing
Except the vortex in air-flow.Grating pipe 6 and the junction of lower barretter 10 are equipped with charge net 9.10 lower part one of the lower barretter
Side is equipped with feeding port 14, and in 14 peripheral hardware curved surface feeding door 15 of feeding port, feeding door 15, by hinge connection, feeds intake with feeding port 14
Door 15 passes through flat mouth hasp locking.The top of the upper barretter 12 covers one layer of resistance material net 13, prevents material from going out pipeline, dirty
Contaminate environment.Splicing plate 16 is placed in the top activity of the charge net 9, after to be tested, holds splicing wrench handle 26 by splicing
Plate 16 passes through feeding port 14, is placed on charge net 9, the material fallen naturally afterwards is completed to access, with hairbrush by splicing
Material on plate 16 clears, and then takes out splicing plate 16.
The test system, 10 top side of lower barretter are equipped with measured hole 17, Pitot tube are provided at measured hole 17
18 and holder, the air admission hole of the Pitot tube 18 is arranged in lower barretter 10, and straight down, Pitot tube 18 passes through to be surveyed air admission hole
Metering-orifice 17 is horizontally moveable, and 18 air admission hole of Pitot tube will be moved radially along lower barretter 10, to measure different positions in lower barretter
The air velocity set.The air velocity transducer 19 is located in 10 tube wall of lower barretter, the lower section of measured hole 17, air velocity transducer 19
It is connected with Pitot tube 18 by air conduit 20.The scale 21 is located at the outside of observation tube 11, the top of scale 21 and observation
The upper end of pipe 11 connects, and the lower end of scale 21 maintains an equal level with the bottom end of observation tube 11, to observe material suspended height.In scale 21
Side, observation tube 11 opposite be equipped with observation platform 22, the observation platform 22 is equipped with ladder 23, work chair 24 and Working table 25, side
Just tester works.Frequency converter 5 is placed on Working table 25.
Claims (3)
1. agricultural material floating velocity test device, which is characterized in that test device includes power and its regulator control system, flow field knot
Construction system and test system；The power and its regulator control system include centrifugal blower, Blower Housing, catch net, flow field connector,
Frequency converter；Centrifugal blower is connected to Blower Housing side, centrifugal fan air outlet straight up, centrifugal blower air inlet through hollow shaft, into
Nylon catch net is covered at air port；The lower end of flow field connector and the air outlet of Blower Housing connect, and frequency converter setting is working
On platform；The flow field structure system includes grating pipe, flow straightening grid, flange, charge net, lower barretter, observation tube, upper current stabilization
Pipe, resistance material net, feeding port, feeding door, splicing plate；With flange by grating pipe and lower barretter, lower barretter and observation tube, observe
Pipe connects into overall structure with upper barretter；Pacify the junction of flow straightening grid built in the grating pipe, grating pipe and lower barretter
Equipped with charge net；The lower barretter lower part side is equipped with feeding port, in feeding port peripheral hardware curved surface feeding door, feeding door with feed intake
For mouth by hinge connection, feeding door passes through flat mouth hasp locking；The top of the upper barretter covers one layer of resistance material net, the Sheng
Expect that splicing plate is placed in the top activity of net；The test system include measured hole, Pitot tube, air velocity transducer, air conduit,
Scale, observation platform, ladder, work chair, Working table；The lower barretter top side is equipped with measured hole, is provided at measured hole
Pitot tube and holder；The air admission hole of the Pitot tube is arranged in lower barretter, and straight down, Pitot tube passes through to be measured air admission hole
Hole is horizontally moveable；The air velocity transducer is located in lower current stabilization tube wall, the lower section of measured hole, and air velocity transducer passes through air
Conduit is connected with Pitot；The scale is located at the outside of observation tube, and the top of scale and the upper end of observation tube connect, under scale
End and the bottom end of observation tube maintain an equal level, and observation platform is equipped on the opposite of scale side, observation tube；The observation platform is equipped with ladder, work
Make chair and Working table, frequency converter is placed on Working table.
2. agricultural material floating velocity test device according to claim 1, which is characterized in that the flow field connector
Lower end is square aperture, and top is circular open.
3. agricultural material floating velocity test device according to claim 1, which is characterized in that the grating pipe is under
Barretter is cylindrical, and diameter is consistent with the upper end of flow field connector, and the observation tube is upper coarse and lower fine conical pipe, under
Hold diameter consistent with lower barretter, the upper barretter is straight tube shape, and diameter is consistent with the upper end of observation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038952.6U CN207763918U (en) | 2018-01-10 | 2018-01-10 | Agricultural material floating velocity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038952.6U CN207763918U (en) | 2018-01-10 | 2018-01-10 | Agricultural material floating velocity test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207763918U true CN207763918U (en) | 2018-08-24 |
Family
ID=63183908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038952.6U Withdrawn - After Issue CN207763918U (en) | 2018-01-10 | 2018-01-10 | Agricultural material floating velocity test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207763918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225719A (en) * | 2018-01-10 | 2018-06-29 | 山西农业大学 | Agricultural material floating velocity test device |
-
2018
- 2018-01-10 CN CN201820038952.6U patent/CN207763918U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225719A (en) * | 2018-01-10 | 2018-06-29 | 山西农业大学 | Agricultural material floating velocity test device |
| CN108225719B (en) * | 2018-01-10 | 2023-10-10 | 山西农业大学 | Agricultural material suspension speed testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180824 Effective date of abandoning: 20231010 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180824 Effective date of abandoning: 20231010 |