CN103891698B - Double-air-channel mist spray device for orchards - Google Patents

Double-air-channel mist spray device for orchards Download PDF

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Publication number
CN103891698B
CN103891698B CN201410144197.6A CN201410144197A CN103891698B CN 103891698 B CN103891698 B CN 103891698B CN 201410144197 A CN201410144197 A CN 201410144197A CN 103891698 B CN103891698 B CN 103891698B
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CN
China
Prior art keywords
air
spray
outlet
blower fan
axial flow
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CN201410144197.6A
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Chinese (zh)
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CN103891698A (en
Inventor
丁素明
薛新宇
周立新
张玲
周良富
蔡晨
孙竹
孔伟
秦维彩
张宋超
顾伟
王宝坤
Original Assignee
农业部南京农业机械化研究所
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Priority to CN201410144197.6A priority Critical patent/CN103891698B/en
Publication of CN103891698A publication Critical patent/CN103891698A/en
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Abstract

The invention relates to a double-air-channel mist spray device for orchards, and belongs to the technical field of agricultural plant protection facilities. Two axial flow fans of the device are respectively provided with annular flow guide covers, air inlet ends of the annular flow guide covers face outwardly, air outlet ends of the annular flow guide covers face inwardly, and an air guide plate assembly is mounted at an interval between the two annular flow guide covers; the air guide plate assembly comprises divergent flared air guide covers, a front air barrier and a rear air barrier, the divergent flared air guide covers are mounted at the air outlet ends, the front air barrier and the rear air barrier respectively perpendicularly extend out of the air out ends, and the upper portion and the lower portion of the front air barrier are respectively connected with the upper portion and the lower portion of the rear air barrier by V-shaped and straight barriers, so that radial air channels can be formed; a left air outlet and a right air outlet are respectively formed in two sides of each radial air channel, left spray rods and right spray rods are respectively mounted at the left air outlets and the right air outlets, and spray nozzles which are distributed at intervals are formed in the left spray rods and the right spray rods. The double-air-channel mist spray device has the advantages that flow fields generated by the double-air-channel mist spray device are complementary to one another, accordingly, the mist spray efficiency can be obviously improved, pressure loss can be reduced, mist penetrating power can be enhanced, and a deposition rate can be increased.

Description

A kind of two air channels Orchard Spray device
Technical field
The present invention relates to a kind of sprayer unit, especially a kind of two air channels Orchard Spray device, belongs to agricultural plant protection facility technology field.
Background technology
According to the applicant understood, air-assisted sprayer unit is made up of constant shaft flow fan and the atomizer be configured in around blower fan usually.In using, the liquid of nozzle ejection is delivered to need spray place by the air-flow that blower fan is sent.Facts have proved, existing air-assisted sprayer unit guides owing to lacking effective air-flow, and Flow Field Distribution is uneven, obviously has that radial air outlet both sides wind speed is not of uniform size to be caused and the shortcoming such as agricultural chemicals loss, and therefore the distribution of nebulization efficiency and droplet is all undesirable.
Retrieval find, application number be CN201010578830.4 application discloses a kind of air-assisted grid circulating spraying system.This air-assisted grid circulating spraying system comprises spraying machine body, and wind send device, grid blocking apparatus, framework, blower fan, spray boom and nozzle; This framework is " ∏ " type, and wind send device to be arranged on framework; The side of framework is arranged on spraying machine body; Grid blocking apparatus is arranged on spraying machine body; Assembling, on spraying machine body, send device to be connected by airduct and wind.This technical scheme adopts centrifugal blower to produce wind field, and air-flow is delivered to air bag by airduct, carry out wind-force less important work, though there is its advantage, but the airflow line pressure loss is larger on the one hand, thus the rotating speed of centrifugal blower or impeller diameter must be improved to meet air-assisted spraying requirement, on the other hand because each air bag air outlet velocity is inconsistent, easily cause spraying uneven, in addition its droplet blocking apparatus adopts wind-force to assist, auxiliary wind field has to pass through crop canopies, wind-force is decayed further, cause the droplet do not acted on canopy being delivered to completely droplet blocking apparatus inner.
Application number is the counter-rotating fan water atomization plant that application discloses a kind of dust removing down-hole of coal mine device of CN201220237914.6, relates to a kind of mine deduster field.The utility model solves sprayer unit complex structure on current mine deduster and the problem such as the effect of spraying is undesirable.Transversely arranged blower fan one and blower fan two is provided with in the outer cover of the counter-rotating fan water atomization plant of this dust removing down-hole of coal mine device, and the direction of rotation of blower fan one and blower fan two is contrary, between the air inlet in outer cover and blower fan one, blower fan two, water injector one, water injector two are set respectively; Described nozzle one, nozzle two to be fixed on outer cover by water inlet pipe one, water inlet pipe two and to lay respectively at the front of blower fan one, blower fan two.This technical scheme adopts a pair contrary axial flow blower of rotation direction to carry out nebulization dust, and the effect that its combination produces is a simple two-stage blower fan, and when through blower fan two, considerable droplet must be had to be tackled by it, finally flow down on air duct inwall.
Application number be CN201110270343.6 application discloses a kind of counter-rotating fan, comprise air duct, motor support plate and motor, described air duct is equipped with motor support plate, described motor support plate is equipped with motor, described motor is connected with one stage impeller, and described motor is connected with sencond stage impeller.Structure of the present invention is simple, is convenient to I&M, advantage of lower cost, energy-efficient, and low noise is reliable.This technical scheme adopts a pair axial flow blower to ventilate, with the technical scheme essence of above-mentioned patent application roughly the same, be still one end air intake, other end air-out, its object is still increase blast.
Summary of the invention
The object of the invention is to: the shortcoming existed for above-mentioned prior art, propose the two air channels Orchard Spray device within the scope of a kind of droplet can be made to be in uniform air flow wind field that blower fan produces, thus significantly improve nebulization efficiency.
In order to reach above object, the of the present invention pair of air channel Orchard Spray device comprises and turns to the contrary but two axial flow blower fan of dead in line, described two axial flow blower fan have respectively air intake outwardly, outlet air end annular kuppe inwardly, air deflection assemblies is installed at interval between two annular kuppes; Described air deflection assemblies comprises the horn-like wind scooper of the flaring being arranged on outlet air end place and by the vertical forward and backward deep bead extended of outlet air end, the upper and lower of described forward and backward deep bead is connected with in-line baffle plate respectively by V-shaped, forms radial passage; Both sides, described radial passage form left and right air outlet respectively, and described left and right air outlet respectively installation interval is distributed with the left and right spray boom of nozzle.
When two axial flow blower fan reversely rotates, air-flow flows out from the both sides of radial passage, because two axial flow blower fan is symmetrical arranged, rotating speed is equal and turn to contrary, therefore not only the machine power of two blower fans is balanced, and the flow field produced also has and mutually compensates usefulness, make the wind field of both sides air outlet even, stable, when air-flow blows out from nozzle both sides, the droplet that nozzle sprays all can be transported within the scope of the uniform air flow wind field of blower fan generation, thus significantly improve nebulization efficiency, reduce crushing, strengthen penetration of droplets power and deposition.
The present invention further improves, between the blade of described axial flow blower and air deflection assemblies, rectification air grid is also housed, described rectification air grid axially extends by one group and the uniform spoke-like flow deflector of circumference is formed, like this can when air-flow exports, through the preliminary guiding of rectification air grid, mutarotation stream is direct current, thus is conducive to ensureing the uniform and stable of wind field.
The present invention further improves, the wind scooper of described two axial flow blower fan is combined to form drive cavity, described drive cavity is built with outlet air end bevel gear coaxial with two axial flow blower fan respectively, two outlet air end bevel gears are engaged by transition bevel gear, therefore can ensure synchronized reverse rotation, its structure is very compact.
The present invention also further improves, the below of described left and right spray boom is equipped with respectively can the droplet disposable box that moves horizontally of left and right directions, bottom described droplet disposable box, telescoping cylinder is housed, outside described droplet disposable box, ultrasonic transmitter and ultrasonic sensor are housed, the signal output part of described ultrasonic sensor connects the controlled end of described telescoping cylinder by control circuit.Therefore, the present invention has to accept and reclaims the effect of droplet of being scattered, and can detect the distance of droplet collection assembly to crop by supersonic sensing, thus by master cylinder by droplet collection assembly auto-control to the correct position of not interfering with crop.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the end view of Fig. 1 embodiment.
Fig. 3 is the interior cutaway view corresponding with Fig. 2.
Embodiment
Embodiment one
Two air channels Orchard Spray device of the present embodiment as shown in Figure 1, 2, 3, comprise turn to the contrary but two axial flow blower fan 1 of dead in line, two axial flow blower fan have respectively air intake outwardly, outlet air end annular kuppe 1-1 inwardly, air intake is equipped with protective cover.Air deflection assemblies 2 is installed at interval between two annular kuppes, the blade 1-3 in axial flow blower 1 and between air deflection assemblies 2, rectification air grid 1-4 is housed, and rectification air grid 1-4 essence axially extends by one group and the uniform spoke-like flow deflector of circumference is formed.Air deflection assemblies 2 comprises the horn-like wind scooper of the flaring being arranged on outlet air end place and by the vertical forward and backward deep bead 2-2 extended of outlet air end, the upper and lower of forward and backward deep bead 2-2 is connected with in-line baffle plate 2-3,2-4 respectively by V-shaped, and Formation cross-section is the radial passage of M shape.The wind scooper of two axial flow blower fan 1 is combined to form drive cavity, drive cavity built with coaxial with two axial flow blower fan respectively outlet air end bevel gear 4,4 ', two outlet air end bevel gears 4,4 ' are engaged by transition bevel gear 5, form power transmission.Both sides, radial passage form left and right air outlet 2-5 and 2-5 ' of vertical strip respectively, left and right air outlet 2-5 and 2-5 ' respectively installation interval be distributed with atomizer 3-1 vertical left and right spray boom 3,3 '.The atomizer 3-1 of every side spray bar is divided into two groups, lays respectively at the both sides of the vertical symmetrical centre of air outlet, (see Fig. 2), controlledly can realize one-sided spraying.The below of left and right spray boom 3,3 ' is equipped with respectively can the droplet disposable box 6 that moves horizontally of left and right directions, telescoping cylinder 7 is housed bottom droplet disposable box 6, ultrasonic transmitter and ultrasonic sensor 8 are housed outside droplet disposable box 6, and ultrasonic sensor signal output part wherein connects the controlled end (not shown) of telescoping cylinder 7 by control circuit.
During work, when the propeller-like blade of one of blower fan is by external motive device 9 driven rotary, the logical speed of the blade of another blower fan is driven to reversely rotate by power transmission, air-flow is entered by the air intake of both sides blower fan kuppe respectively, after rectification and water conservancy diversion, flow to both sides and the top of radial passage, now the flow field of the contrary blower fan of two rotation directions compensates mutually, the wind field on both sides and top is made to become uniform flow field, blow out from the both sides of nozzle, the droplet that nozzle sprays effectively is transported within the scope of the uniform air flow wind field of blower fan generation, thus significantly improve nebulization efficiency, reduce crushing, strengthen penetration of droplets power and deposition.
When the experiment of tractor-drawn to fruit tree spraying shows, the spraying wind of the present embodiment send servicing unit to adopt single power source as power, the radial air-out of both sides air inlet through hollow shaft.On the one hand, the mutual disturbance of the wind field that two fans produces forms rotational flow field, enhances turbulent air flow intensity in fruit tree canopy, and makes two cross forces even, significantly improves Spray Uniformity; On the other hand, because the axis of blower fan is consistent with direction of advance, brattice together with being formed between driver's cabin with blower fan near the air inlet through hollow shaft of driver's cabin side blower fan, the droplet that sprayer unit is produced to driver's cabin drift, can not ensure that job safety.Meanwhile, the difficult problem owing to adopting two pairs of bevel gears to properly settle two fans the same power source as transmission of power.In addition, being provided with of droplet gathering unit is beneficial to environmental protection and energy saving, and is provided with ultrasonic transmitter and ultrasonic sensor at droplet gathering unit, ensures that in operation process, droplet gathering unit can not encounter trunk.

Claims (5)

1. two air channels Orchard Spray device, comprise and turning on the contrary but the two axial flow blower fan of dead in line, described two axial flow blower fan have respectively air intake outwardly, outlet air end annular kuppe inwardly, it is characterized in that: air deflection assemblies is installed at interval between two annular kuppes; Described air deflection assemblies comprises the horn-like wind scooper of the flaring being arranged on outlet air end place and by the vertical forward and backward deep bead extended of outlet air end, the top of described forward and backward deep bead is connected by V-shaped baffle plate, the bottom of described forward and backward deep bead is connected by in-line baffle plate, forms radial passage; Both sides, described radial passage form left and right air outlet respectively, and described left and right air outlet respectively installation interval is distributed with the left and right spray boom of nozzle.
2. according to claim 1 pair of air channel Orchard Spray device, is characterized in that: between the blade of described axial flow blower and air deflection assemblies, rectification air grid is also housed, and described rectification air grid axially extends by one group and the uniform spoke-like flow deflector of circumference is formed.
3. according to claim 2 pair of air channel Orchard Spray device, it is characterized in that: the wind scooper of described two axial flow blower fan is combined to form drive cavity, described drive cavity is built with outlet air end bevel gear coaxial with two axial flow blower fan respectively, and two outlet air end bevel gears are engaged by transition bevel gear.
4. according to claim 3 pair of air channel Orchard Spray device, it is characterized in that: the below of described left and right spray boom is equipped with respectively can the droplet disposable box that moves horizontally of left and right directions, bottom described droplet disposable box, telescoping cylinder is housed, outside described droplet disposable box, ultrasonic transmitter and ultrasonic sensor are housed, the signal output part of described ultrasonic sensor connects the controlled end of described telescoping cylinder by control circuit.
5. according to claim 4 pair of air channel Orchard Spray device, is characterized in that: the nozzle of every side spray bar is divided into two groups, lays respectively at the both sides of the vertical symmetrical centre of air outlet.
CN201410144197.6A 2014-04-10 2014-04-10 Double-air-channel mist spray device for orchards CN103891698B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104335997A (en) * 2014-09-25 2015-02-11 蓬莱市刘家沟镇墟里玫瑰香葡萄专业合作社 Pesticide sprayer
CN108580090A (en) * 2018-04-24 2018-09-28 洛阳市曼德机械制造有限公司 A kind of assemble method of the double wind path spraying machines of garden supervisor
CN109924190A (en) * 2019-04-12 2019-06-25 南京农业大学 Air-flow circulating type medical fluid recovery type orchard air-assisted sprayer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101559414A (en) * 2009-02-19 2009-10-21 解禄观 On-vehicle air conveying spraying machine applicable to vineyards
CN201342389Y (en) * 2008-09-08 2009-11-11 梅州市风华喷雾喷灌机械设备有限公司 Twin-stage power dis-rotatory axial blowing hitting-range atomizing machine
JP2010193766A (en) * 2009-02-24 2010-09-09 Terada Seisakusho Co Ltd Airflow level-adjusting device for blower type pest control machine
CN102367805A (en) * 2011-09-14 2012-03-07 大连汇通科技发展有限公司 Counter-rotating fan
CN203762123U (en) * 2014-04-10 2014-08-13 农业部南京农业机械化研究所 Double-duct orchard spraying device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201342389Y (en) * 2008-09-08 2009-11-11 梅州市风华喷雾喷灌机械设备有限公司 Twin-stage power dis-rotatory axial blowing hitting-range atomizing machine
CN101559414A (en) * 2009-02-19 2009-10-21 解禄观 On-vehicle air conveying spraying machine applicable to vineyards
JP2010193766A (en) * 2009-02-24 2010-09-09 Terada Seisakusho Co Ltd Airflow level-adjusting device for blower type pest control machine
CN102367805A (en) * 2011-09-14 2012-03-07 大连汇通科技发展有限公司 Counter-rotating fan
CN203762123U (en) * 2014-04-10 2014-08-13 农业部南京农业机械化研究所 Double-duct orchard spraying device

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