CN201732006U - Testing platform for air curtain type spray lance spraying gas and liquid two-phase flow system - Google Patents
Testing platform for air curtain type spray lance spraying gas and liquid two-phase flow system Download PDFInfo
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- CN201732006U CN201732006U CN2010201398916U CN201020139891U CN201732006U CN 201732006 U CN201732006 U CN 201732006U CN 2010201398916 U CN2010201398916 U CN 2010201398916U CN 201020139891 U CN201020139891 U CN 201020139891U CN 201732006 U CN201732006 U CN 201732006U
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- spray boom
- spray lance
- liquid
- air curtain
- spray
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Abstract
The utility model relates to a testing device used for design, detection and test of agricultural spraying devices, in particular to a testing platform for an air curtain type spray lance spraying gas and liquid two-phase flow system, which comprises a horizontal spray lance with a plurality of sprayers. An outlet of a pesticide box is connected with an inlet of the spray lance via a liquid pump and a flow control valve, the spray lance is further provided with a pressure sensor capable of detecting pressure of pesticide in the spray lance, an air curtain device driven via a fan is disposed over the spray lance, and the fan is connected with a frequency converter capable of controlling rotation speed of the fan. The testing platform can be used for testing air curtain type spray lance spraying gas and liquid two-phase flow fields under different conditions and observing drifting, sedimentation velocity and target penetration power of sprayed pesticide in a laboratory environment.
Description
Technical field
The utility model relates to a kind of test unit that is used for design, detection and the test of agricultural spraying plant, specifically is a kind of wind curtain type spray boom spraying biphase gas and liquid flow system test platform.
Background technology
The Pneumatic type shield spraying technology that is applied in the agricultural spraying plant is to reduce a kind of effective measures of pesticide droplet drift, and forms such as air curtain, air curtain, air bag are arranged.It is the movement locus that changes droplet by the air-flow that adds the blower fan generation, reaches the effect that reduces the droplet drift.
At present at the experimental study of the anti-technology of wafing of Pneumatic type cover cap also seldom, yet there are no report for wind curtain type spray boom spraying biphase gas and liquid flow velocity distribution characteristic and mist droplet deposition characteristic test research.And existing two-phase flow spray testing platform only is used for the test and the detection of normal temperature smoke-type facility, thereby can not satisfy the requirement of wind curtain type spray boom spraying biphase gas and liquid flow velocity distribution characteristic and mist droplet deposition characteristic test research.
The phase Doppler particle analyser (PDPA) that grew up in nearly ten years has become spray particle and other spheroidal particles size and the velocity characteristic the recognized standard instrument measured; On the other hand, high speed photography is used widely in the observation to droplet, thereby the dynamic process of all spraying for research provides good test and observation method.But existing test unit will still can not be used these technology preferably.
Summary of the invention
The technical problems to be solved in the utility model provide a kind of can be under laboratory environment to testing and to the drift of spray liquor, sedimentation velocity, and wind curtain type spray boom spraying biphase gas and liquid flow system test platform that the target penetration power is observed in the gas-liquid two-phase flow field of the spraying of the wind curtain type spray boom under the different condition.
Wind curtain type spray boom spraying biphase gas and liquid flow system test platform of the present utility model includes the spray boom of the level that has some shower nozzles, there is the outlet of a medicine-chest to be connected with the inlet of spray boom with flowrate control valve, also is provided with the pressure transducer that can detect spray boom inner liquid medicine pressure on the spray boom through liquid pump; Be provided with an air curtain apparatus that is driven by blower fan directly over spray boom, the frequency converter of blower fan and its rotating speed of may command links.
The utility model also includes phase Doppler particle analyser and the high speed digital camera that is connected with computing machine, the intersection point of the probe Laser emission of described phase Doppler particle analyser is positioned at the spray field of spray boom below, and described high speed digital camera is positioned at above-mentioned spray field one side.
Described spray boom self is rotatable and but the apparent wind proscenia moves.
Advantage of the present utility model is:
1, can test and the drift of spray liquor, sedimentation velocity, and the target penetration power is observed the gas-liquid two-phase flow field of the spraying under the different shower nozzle fog pattern situations;
2, can test and the drift of spray liquor, sedimentation velocity, and the target penetration power is observed the gas-liquid two-phase flow field of the spraying under the different relative position situations between shower nozzle, air curtain and the target;
3, can test and the drift of spray liquor, sedimentation velocity, and the target penetration power is observed the gas-liquid two-phase flow field of the spraying under the different air quantity of air curtain, the wind conditions;
4, can test the gas-liquid two-phase flow field of spraying and the drift of spray liquor, sedimentation velocity, and the target penetration power is observed in conjunction with the extraneous different crosswind conditions of wind tunnel simulation;
5, with PDPA the gas-liquid two-phase flow field of spraying is tested, with the high speed digital camera to the drift of spray liquor, sedimentation velocity, and the target penetration power is observed, precisely reliably, can satisfy research preferably for wind curtain type spray boom spray technique.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment:
Among the figure: 1-blower fan 2-frequency converter 3-air curtain apparatus 4-spray boom 5-shower nozzle 6-pressure transducer 7-flowrate control valve 8-liquid pump 9-medicine-chest 10-computing machine 11-phase Doppler particle analyser 12-high speed digital camera
Embodiment
As shown in Figure 1, among the utility model embodiment, blower fan 1 links with frequency converter 2; Blower fan 1, air curtain apparatus 3 and spray boom 4 use the metal stands to fix, and blower fan 1 is positioned at directly over the air curtain apparatus 3, and spray boom 4 is positioned under the air curtain apparatus 3, and spray boom 4 self can rotate, and can apparent wind proscenia 3 carry out up and down and move forward and backward; Shower nozzle 5 links with spray boom 4 and can change according to the experiment needs; Spray boom 4 is provided with pressure transducer 6; The output terminal of flowrate control valve 7 and spray boom 4 input ends link, and the input end of flowrate control valve 7 and liquid pump 8 link; The input end of liquid pump 8 and medicine-chest 9 link; Computing machine 10 links with phase Doppler particle analyser 11 and high speed digital camera 12 respectively, constitutes the test and the recording geometry of this testing table.
Control the air quantity of the rotating speed of blower fans 1 with frequency converter 2 in the test with control air curtain apparatus 3; The flow of shower nozzle 5 and pressure are regulated with flowrate control valve 7; Gas-liquid two-phase flow field with 11 pairs of sprayings of phase Doppler particle analyser is tested; Drift, sedimentation velocity with 12 pairs of spray liquors of high speed digital camera reach the target penetration power are observed.
The gas-liquid two-phase flow field of changing the spraying under 5 pairs of different shower nozzle fog pattern situations of shower nozzle in the test is tested with the drift of spray liquor, sedimentation velocity, and the target penetration power is observed; Adjust that different relative positions between shower nozzle 5, air curtain apparatus 3 and the target are tested the gas-liquid two-phase flow field of the spraying under the various situations and the drift of spray liquor, sedimentation velocity, and the target penetration power is observed; Regulate air curtain apparatus 3 air quantity and wind speed by regulating frequency converter 2, the gas-liquid two-phase flow field of the spraying under the various situations is tested with the drift of spray liquor, sedimentation velocity, and the target penetration power observed; In conjunction with the extraneous different crosswind conditions of wind tunnel simulation the gas-liquid two-phase flow field of spraying is tested with the drift of spray liquor, sedimentation velocity, and the target penetration power observed.
Claims (2)
1. wind curtain type spray boom spraying biphase gas and liquid flow system test platform, it is characterized in that: it includes the spray boom (4) of the level that has some shower nozzles (5), there is the outlet of a medicine-chest (9) to be connected with the inlet of spray boom with flowrate control valve (7), also is provided with the pressure transducer (6) that can detect spray boom inner liquid medicine pressure on the spray boom through liquid pump (8); Be provided with an air curtain apparatus (3) that is driven by blower fan (1) directly over spray boom, the frequency converter (2) of blower fan and its rotating speed of may command links; It also includes phase Doppler particle analyser (11) and the high speed digital camera (12) that is connected with computing machine (10), the intersection point of the probe Laser emission of described phase Doppler particle analyser is positioned at the spray field of spray boom below, and described high speed digital camera is positioned at above-mentioned spray field one side.
2. wind curtain type spray boom spraying biphase gas and liquid flow system test platform according to claim 1 is characterized in that: but described spray boom self is rotatable and the apparent wind proscenia moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201398916U CN201732006U (en) | 2010-03-25 | 2010-03-25 | Testing platform for air curtain type spray lance spraying gas and liquid two-phase flow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201398916U CN201732006U (en) | 2010-03-25 | 2010-03-25 | Testing platform for air curtain type spray lance spraying gas and liquid two-phase flow system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732006U true CN201732006U (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201398916U Expired - Fee Related CN201732006U (en) | 2010-03-25 | 2010-03-25 | Testing platform for air curtain type spray lance spraying gas and liquid two-phase flow system |
Country Status (1)
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| CN (1) | CN201732006U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494879A (en) * | 2011-11-18 | 2012-06-13 | 江苏大学 | Test apparatus which simulates spray rod motions |
| CN102494906A (en) * | 2011-11-14 | 2012-06-13 | 北京农业信息技术研究中心 | Test device for air-assisted spraying |
| CN104614150A (en) * | 2015-01-30 | 2015-05-13 | 农业部南京农业机械化研究所 | Indoor simulation testing platform and method for two-phase flow field of spraying of plant protection unmanned aerial vehicle |
| CN104642286A (en) * | 2015-03-03 | 2015-05-27 | 北京农业信息技术研究中心 | Device and method for simulating pesticide spraying depositing |
| CN105638617A (en) * | 2016-02-18 | 2016-06-08 | 江苏大学 | Air curtain type airflow auxiliary diversion system |
| CN105750130A (en) * | 2016-05-11 | 2016-07-13 | 陈云霞 | Bundling spraying device |
| CN106644847A (en) * | 2016-12-19 | 2017-05-10 | 国网湖南省电力公司 | System and method for measuring wind resistance parameter of water mist |
| CN108279136A (en) * | 2018-04-18 | 2018-07-13 | 中国农业科学院农田灌溉研究所 | There is the test system of irrigation uniformity under wind environment in a kind of interior |
-
2010
- 2010-03-25 CN CN2010201398916U patent/CN201732006U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494906A (en) * | 2011-11-14 | 2012-06-13 | 北京农业信息技术研究中心 | Test device for air-assisted spraying |
| CN102494879A (en) * | 2011-11-18 | 2012-06-13 | 江苏大学 | Test apparatus which simulates spray rod motions |
| CN104614150A (en) * | 2015-01-30 | 2015-05-13 | 农业部南京农业机械化研究所 | Indoor simulation testing platform and method for two-phase flow field of spraying of plant protection unmanned aerial vehicle |
| CN104642286A (en) * | 2015-03-03 | 2015-05-27 | 北京农业信息技术研究中心 | Device and method for simulating pesticide spraying depositing |
| CN105638617A (en) * | 2016-02-18 | 2016-06-08 | 江苏大学 | Air curtain type airflow auxiliary diversion system |
| CN105750130A (en) * | 2016-05-11 | 2016-07-13 | 陈云霞 | Bundling spraying device |
| CN105750130B (en) * | 2016-05-11 | 2018-03-02 | 陈云霞 | A kind of boundling sprayer unit |
| CN106644847A (en) * | 2016-12-19 | 2017-05-10 | 国网湖南省电力公司 | System and method for measuring wind resistance parameter of water mist |
| CN106644847B (en) * | 2016-12-19 | 2020-02-04 | 国网湖南省电力公司 | System and method for measuring fine water mist wind resistance performance parameters |
| CN108279136A (en) * | 2018-04-18 | 2018-07-13 | 中国农业科学院农田灌溉研究所 | There is the test system of irrigation uniformity under wind environment in a kind of interior |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20110325 |