CN1887442A

CN1887442A - Electrostatic sprayer

Info

Publication number: CN1887442A
Application number: CN 200610041206
Authority: CN
Inventors: 陈平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-19
Filing date: 2006-07-19
Publication date: 2007-01-03

Abstract

The electrostatic 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 a motor and a turntable with rotating shaft connected to the shaft of the motor; the high voltage electrostatic generator has high voltage output negative pole located in the outlet of the drainage tube 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 raise the pesticide liquid charging effect and raise the deposition rate of pesticide liquid on crop.

Description

Electrostatic atomiser

Technical field

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

Background technology

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

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

Disclose a kind of axial flow wind spraying aid type 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 water conservancy diversion wind awl 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 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 the droplet radius, but because the influence of blower fan wind-force, can make droplet have bigger initial velocity, make droplet elongated with the The interaction distance of air in unrestrained process, 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, can form high-pressure electrostatic, make the high pressure output negative pole reduce, so the electrostatic effect of spray film be poor to the effect that soup discharges negative electrical charge because of the Kelvin effect stored charge.

Summary of the invention

The object of the present invention is to provide a kind of electrostatic atomiser, it can reduce or eliminate the static on handle and the drainage tube, improves the charging effect of droplet.

Technical scheme of the present invention is: a kind of electrostatic atomiser, 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 motor, rotating disk, the machine shaft of described shower nozzle motor is connected with described rotating disk, the high pressure output negative pole of described HV generator is positioned at the drainage tube port of export of described drainage tube, 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 of electrostatic sprayer unit.

The power supply lead wire of described shower nozzle motor is connected on another independently on second dc source.

Have handle on the described drainage tube, described null electrode is positioned on the described handle.

The invention has the beneficial effects as follows: be electrically connected with described null electrode because the input of HV generator is anodal, null electrode contacts with operating personnel in operating process, operating personnel are equivalent to zero potential, make the electric charge that gathers on handle and the drainage tube surface to obtain discharging, thereby improve droplet static electrification effect effectively by human body.

Description of drawings

Accompanying drawing 1 is the structural representation of electrostatic atomiser of the present invention;

Accompanying drawing 2 is the structural representation of atomising device;

Accompanying drawing 3 is the structural representation of high-voltage generator;

Accompanying drawing 4 is the atomising device schematic appearance;

Accompanying drawing 5 is the circuit block diagram of electrostatic atomiser;

Wherein: 1, rotating disk; 2, the drainage tube port of export; 3, shower nozzle motor; 4, drainage tube; 5, power switch; 6, handle; 7, null electrode; 8, HV generator; 9, liquid storage container; 10, first dc source; 11, second dc source; 12, pump; 13, atomising device; 14, flow switch; 15, outside the insulation; 16, high-voltage electrostatic generator; 17, machine shaft; 18, high pressure output negative pole; 19, current-limiting resistance; 20, high pressure output cathode.

The specific embodiment

Electrostatic atomiser as shown in Figure 1, comprise drainage tube 4, null electrode 7, liquid storage container 9, pump 12, atomising device 13 and high-voltage electrostatic generator 16, described atomising device 13 comprises a shower nozzle motor 3 and rotating disk 1, described shower nozzle motor 3 is in transmission connection mutually with rotating disk 1, can be directly to connect or be connected, drive rotating disks 1 rotation at a high speed by shower nozzle motor 3 by gear.The shell of described high-voltage electrostatic generator 16 is a plastic casing, its inside is equipped with first dc source 10 and HV generator 8, first dc source 10 adopts two dry cells, separately to HV generator 8 power supplies, dry cell all supports with battery stator and spring(-supported) mount, and the input positive pole of described HV generator 8 links to each other with null electrode 7; Described liquid storage container 9 inside are equipped with pump 12 and second dc source, 11, the second dc sources 11 are powered to shower nozzle motor 3 and pump 12; First dc source 10 and second dc source 11 are two independently power supplys, can not be in parallel between two power supplys or the series connection back be arbitrary electric power supply on the electrostatic atomiser.Described drainage tube 4 one ends link to each other with liquid storage container 9, the other end is connected on the drainage tube port of export 2 of atomising device 13, the described drainage tube port of export 2 is electrically connected mutually with the high pressure output negative pole 18 of metallic conduction material, has handle 6 on the drainage tube 4, handle 6 is fixedly connected with high-voltage generator 15, handle 6 is provided with the null electrode 7 that metal material is made, be used for contacting with operating personnel, handle 6 tops are the switching mechanism of a lever principle, comprise power switch 5 and flow switch 14, described power switch 5 is a normal open switch.

When work, handle 6 parts on the hand-held drainage tube 4 of operating personnel, and hold described null electrode 7, console switch mechanism controls power switch 5 and flow switch 14 conducting together, wherein power switch 5 is controlled the connection of first dc source 10 and second dc source 11 simultaneously, first dc source 10 is to HV generator 8 power supplies and make it produce high-pressure electrostatic, the positive pole of first dc source 10 and null electrode 7 are electrically connected, described null electrode 7 contacts with the human body of operation of electrostatic sprayer, make electric charge obtain discharging attached to the electrostatic atomiser surface, high pressure output negative pole 18 is electrically connected on the cathode output end of HV generator 8 and the atomising device 13, pump 12 and shower nozzle motor 3 that second dc source 11 drives in the liquid storage container 9, shower nozzle motor 3 drives rotating disk 1 rotation at a high speed, pump 12 drives soup and is transported on the drainage tube port of export 2 by flow switch 14 by drainage tube 4, described high pressure output negative pole 18 makes negative electricity on the drop band of the drainage tube port of export 2, further spray after the atomizing through atomising device 13, can not only be adsorbed onto the leaf front and can also be adsorbed onto the leaf back side, thereby improve the sedimentation rate of soup on crops.

The invention reside in and used null electrode 7, make and be deposited on handle and drainage tube 4 lip-deep electric charges are released, then high pressure output negative pole 18 can drip to medicine better under the interference that does not have other electrostatic field and fill with electric charge, droplet can be done directed movement to object 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 electrostatic atomiser, comprise HV generator (8) with high pressure output negative pole (18), liquid storage container (9), drainage tube (4), atomising device (13), one end of described drainage tube (4) is connected with described liquid storage container (9) and the other end is received on the atomising device (13), described atomising device (13) comprises shower nozzle motor (3), rotating disk (1), the machine shaft (17) of described shower nozzle motor (3) is connected with described rotating disk (1), the high pressure output negative pole (18) of described HV generator (8) is positioned at the drainage tube port of export (2) of described drainage tube (4), it is characterized in that: the power supply lead wire of described HV generator (8) is connected on one first dc source (10), the positive source of described first dc source (10) and null electrode (7) are electrically connected, and described null electrode (7) is used for contacting with the human body of operation of electrostatic sprayer unit.

2, electrostatic atomiser according to claim 1 is characterized in that: the power supply lead wire of described shower nozzle motor (3) is connected on another independently on second dc source (11).

3, electrostatic atomiser according to claim 1 is characterized in that: have handle (6) on the described drainage tube (4), described null electrode (7) is positioned on the described handle (6).