CN1887440A

CN1887440A - Sprayer

Info

Publication number: CN1887440A
Application number: CN 200610041051
Authority: CN
Inventors: 陈平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-18
Filing date: 2006-07-18
Publication date: 2007-01-03

Abstract

The sprayer includes a high voltage electrostatic generator, a liquid storing container, a drainage tube and an atomizer. The drainage tube has one end connected to the liquid storing container and the other end connected to the atomizer; the atomizer includes spray nozzle with hole; the high voltage electrostatic generator has high voltage output negative pole connected electrically to the spray nozzle or located in the inlet of the hole and power lead connected to the first DC power source. The first DC power source has its positive pole connected to the null electrode, and the null electrode is made to contact the body of the sprayer operator, so as to release the charge deposited on the surface of the sprayer, raise the pesticide liquid charging effect and raise the deposition rate of pesticide liquid on crop.

Description

Sprayer

Technical field

The present invention relates to a kind of sprayer, in particular for spraying the electrostatic atomiser of agrochemicals medicine.

Background technology

The principle of electrostatic spray technology is, utilize a high-voltage electrostatic field that forms between the shower nozzle of high-pressure electrostatic and target, soup is filled with electric charge when shower nozzle atomizes, under the effect of the static field of force and other external force, droplet is adsorbed on the target do directed movement, thereby improves the sedimentation rate of droplet group on target.

When utilization electrostatic spray technology, the particle diameter that produces droplet is a very The key factor, and the gravity of the excessive then droplet of particle diameter own is considerably beyond electrostatic force, and electrostatic interaction is little, and it is unrestrained that the movement locus of its droplet remains nature, and major part is then received by the earth; The too small then carried charge of particle diameter is little, and the static same purpose is very little.

Disclose a kind of axial flow wind pine formula electrostatic atomizer in Chinese utility model patent specification 92213012.4, it comprises axial flow blower, high pressure generator, atomizing air duct and between axial flow blower and atomizing air duct and the deflection cone tube that is connected with the two.Effluent air quickens back air inlet of minor air cell in the atomizing air duct through the deflection cone tube and enters the minor air cell in the axial flow blower, thereby the liquid of eddy current indoor high-speed rotation is gone out the nozzle formation droplet of atomizing air duct opening part.The negative pole of high pressure generator is electrically connected with nozzle inner walls, makes negative electricity on the droplet band of ejection.

Yet this electrostatic atomizer that has blower fan, though reached the effect that reduces mist droplet particle size, but because the influence of blower fan wind-force, can make droplet have bigger initial velocity, make in the unrestrained process of droplet elongated with the interactional distance of air, thereby its institute electrically chargedly almost all neutralizes by air, and the electrostatic technique effect of spraying is little.

Owing on handle portion conduction or insulation, drainage tube, forming high-pressure electrostatic, make the effect to soup release negative electrical charge of high pressure output negative pole reduce, so the electrostatic effect of spray film is poor because of the Kelvin effect stored charge.

Summary of the invention

The object of the present invention is to provide a kind of droplet that can make fully to have negative electrical charge, thereby improve sedimentation rate and the uniformity of droplet group on target that is sprayed.

Technical scheme of the present invention is: a kind of sprayer, comprise HV generator with high pressure output negative pole, liquid storage container, drainage tube, atomising device, one end of described drainage tube is connected with described liquid storage container and the other end is received on the atomising device, described atomising device comprises the shower nozzle that has spray orifice, the high pressure output negative pole of described HV generator is electrically connected on the described shower nozzle or is positioned at the inlet portion of described spray orifice, the power supply lead wire of described HV generator is connected on one first dc source, the positive source and the null electrode of described first dc source are electrically connected, and described null electrode is used for contacting with the human body of operation sprayer.

Described liquid storage container is provided with pump, second direct current, and the power supply lead wire of described pump is connected on described second dc source.

The invention has the beneficial effects as follows: adopted the null electrode that links to each other with the high pressure output cathode, when operating personnel contact with null electrode, operating personnel are equivalent to zero potential, make the electric charge that gathers on handle and the drainage tube surface to obtain discharging by human body, thereby improve the charged effect of droplet effectively, improve sedimentation rate and the uniformity of droplet group on target, the droplet group can partly move towards the back of leaf.

Description of drawings

Accompanying drawing 1 is the structural representation of sprayer of the present invention;

Accompanying drawing 2 is the structural representation of atomising device;

Accompanying drawing 3 is the circuit catenation principle figure of sprayer;

Wherein: 1, shower nozzle; 2, high pressure output negative pole; 3, drainage tube; 4, atomising device; 5, spray orifice; 6, lead; 7, liquid storage container; 8, null electrode; 9, first dc source; 10, HV generator; 11, flow switch; 12, power switch; 13, second dc source; 14, pump; 15, high pressure output cathode; 16, current-limiting resistance; 17, depression bar; 18, high-voltage electrostatic generator shell; 19, high-voltage electrostatic generator; 20, switching mechanism;

The specific embodiment

Described sprayer comprises high-voltage electrostatic generator 19, liquid storage container 7, drainage tube 3, switching mechanism 20 and atomising device 4; Described high-voltage electrostatic generator 19 comprises the high-voltage electrostatic generator shell 18 that hard insulation is made, inside is equipped with first dc source 9 and a

HV generator

10,9 pairs of HV generators 10 of wherein said first dc source are powered separately, the general dry cell batteries that adopts, dry cell batteries all supports with battery stator and spring(-supported) mount; The anodal input lead of described HV generator 10 links to each other with null electrode 8, the high pressure output negative pole 2 of described HV generator 10 links to each other with shower nozzle 1, perhaps be positioned at the porch of spray orifice 5, make the fluid that enters spray orifice 5 through drainage tube 3 charged through high pressure output negative pole 2 time, again through spray orifice 5 atomizing ejections; There is switching mechanism 20 top of high-voltage electrostatic generator shell 9; Described drainage tube 3 one ends link to each other with liquid storage container 7, and the other end links to each other with atomising device 4, has handle portion on the drainage tube 3, and handle portion and high-voltage electrostatic generator 20 are fixedly connected; Described switching mechanism 20 comprises depression bar 17, flow switch 11 and power switch 12, depression bar 17 utilizes leverage that flow switch 11 and power switch 12 are controlled together, power switch 12 is a normal open switch, described power switch 12 is divided into two parts, switch that pump 14 is controlled and the switch that HV generator 10 is controlled, two parts switch links to each other by the insulation compressing tablet; Described atomising device 4 comprises shower nozzle 1 and spray orifice 5, is equipped with described spray orifice 5 on the shower nozzle 1; Connect high pressure output negative pole 2 on the described shower nozzle 1, described high pressure output negative pole 2 can make negative electricity on the soup band; Described liquid storage container 7 selects for use insulating materials as shell, and inside is equipped with pump 14, second dc source 13, and described pump 14 is by 13 power supplies of second dc source.

When work, the hand-held handle portion of operating personnel is also held null electrode 8, when depressing depression bar 17 drive switching mechanisms 20, flow switch 11 is opened, the power switch of often opening 12 is connected, the conducting simultaneously of high-pressure electrostatic generation circuit and pump circuit, fluid in the liquid storage container 7 arrives atomising device 4 through flow switch 11 smoothly by drainage tube 3, be positioned at shower nozzle 1 or spray orifice porch high pressure output negative pole 2 make negative electricity on the fluid band, electronegative medicine is subjected to electrostatic interaction after dripping ejection, be adsorbed onto the front and the leaf back side of leaf, improved the calmness of soup on crops.

The invention reside in and used null electrode 8, make and be deposited on handle and drainage tube 3 lip-deep electric charges are released, thereby improved the charged effect that medicine drips, droplet is done directed movement to object better when making sprinkling, and the present invention can also be applied to the sprinkling of large-scale public arena sterilization soups such as hospital's theater.

Claims

1, a kind of sprayer, comprise HV generator (10) with high pressure output negative pole (2), liquid storage container (7), drainage tube (3), atomising device (4), one end of described drainage tube (3) is connected with described liquid storage container (7) and the other end is received on the atomising device (4), described atomising device (4) comprises the shower nozzle (1) that has spray orifice (5), the high pressure output negative pole (2) of described HV generator (10) is electrically connected on the inlet portion that described spray orifice (5) were gone up or be positioned to described shower nozzle (1), it is characterized in that: the power supply lead wire of described HV generator (10) is connected on one first dc source (9), the positive source of described first dc source (9) and null electrode (8) are electrically connected, and described null electrode (8) is used for contacting with the human body of operation sprayer.

2, sprayer according to claim 1 is characterized in that: described liquid storage container (7) is provided with pump (14), second dc source (13), and the power supply lead wire of described pump (14) is connected on described second dc source (13).