CN1887441A

CN1887441A - Electrostatic sprayer

Info

Publication number: CN1887441A
Application number: CN 200610041052
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 electrostatic sprayer includes a high voltage electrostatic generator, a liquid storing container, a drainage tube, a pump, a null electrode, an atomizer, a first DC power source and a second DC power source. The drainage tube is connected to the liquid storing container; the atomizer includes a motor and a turntable with rotating shaft connected to the output shaft of the motor; the first DC power source powers the high voltage electrostatic generator and has positive pole connected to the null electrode; the high voltage electrostatic generator has negative pole located in the outlet of the drainage tube; and the second DC power source powers the spray nozzle motor and the pump. The liquid is driven by the pump to flow out through the drainage tube, negatively charged in the high voltage electrostatic generator and atomized by the high speed rotating turntable to 50-500 micron size, and the atomized liquid is adsorbed to the right side and back side of leaves in high deposition rate and homogeneity.

Description

Electrostatic atomizer

Technical field

The present invention relates to a kind of electrostatic atomizer, 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.

In addition, designed before this electrostatic atomizer, generally comprise pump, shower nozzle motor and three kinds of power devices of high pressure generator, and these the three kinds shared power supplys of device, charged drop can be attracted by the motor positive pole of close together or negative pole after ejection like this, cause suck-back, make droplet effectively to be deposited on the target.

Summary of the invention

The object of the present invention is to provide a kind of electrostatic atomizer that can produce the droplet of suitably big minor radius and avoid the suck-back phenomenon to occur, thereby the electrostatic spray technology is better played effectiveness, improve sedimentation rate and the uniformity of droplet group on target.

Technical scheme of the present invention is: a kind of electrostatic atomizer, comprise HV generator with high pressure output negative pole, liquid storage container, drainage tube, atomising device, be arranged at the pump in the liquid storage container, 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 independently on first dc source, and the power supply lead wire of described shower nozzle motor and the power supply lead wire of pump all are connected on another independently on second 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 invention has the beneficial effects as follows: because high pressure generator has adopted independently electric power system, therefore the positive source of shower nozzle motor and power cathode can not produce big influence to the moving process of droplet, can be so that soup carried charge in through the high pressure output negative pole be more, spray effect is better.

Description of drawings

Accompanying drawing 1 is the structural representation of electrostatic atomizer 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 outside drawing;

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

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, insulation crust; 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

As shown in Figure 1 electrostatic atomizer, comprise drainage tube 4, null electrode 7, liquid storage container 9, pump 12, atomising device 13 and high-voltage electrostatic generator 16.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 is two dry cell batteries, it is HV generator 8 power supplies, dry cell batteries all supports with battery stator and spring(-supported) mount, is provided with power switch 5 and null electrode 7 near it.During power switch 5 closures, first dc source 10 and second dc source 11 are connected simultaneously.Described liquid storage container 9 inside are equipped with pump 12 and second dc source, 11, the second dc sources 11 are shower nozzle motor 3 and pump 12 power supplies.Described liquid storage container 9 is connected with drainage tube 4, has handle portion on the drainage tube 4, handle portion is fixedlyed connected with high-voltage generator 15, and the another port of drainage tube 4 extends into atomising device 13 inside, and drainage tube 4 ports connect the high pressure output negative pole 18 of a metal material.Described high pressure output negative pole 18 is electrically connected with the cathode output end of high-voltage electrostatic generator 16, and soup is with negative electrical charge after by high pressure output negative pole 18.Described atomising device 13 comprises a shower nozzle motor 3 and rotating disk 1, and described shower nozzle motor 3 is in transmission connection mutually and can directly connects or be connected by gear with rotating disk 1, drives rotating disk 1 rotation at a high speed by shower nozzle motor 3.

When work, first dc source 10 and and second dc source 11 connect simultaneously, first dc source 10 is to HV generator 8 power supplies and make it produce high-pressure electrostatic, the positive pole and the null electrode 7 of first dc source 10 are electrically connected simultaneously, described null electrode 7 contacts with the human body of operation of electrostatic sprayer unit, and the cathode output end of HV generator 8 is electrically connected by a lead and high pressure output negative pole 18.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 is with negative electricity after soups pass through high pressure output negative poles 18 by drainage tube 4, after the rotating disk 1 that electronegative soup process is rotated at a high speed and the dual atomizing of static, the droplet radius becomes very little, can reach the 50-500 micron, thereby well be subjected to the effect of electrostatic force, not only can be adsorbed onto the leaf front and can also be adsorbed onto the leaf back side, improve sedimentation rate and the uniformity of soup on crops.

Since the present invention when spraying soup can be in air disperse but do directed movement to object, the present invention can also be applied to the sprinkling of large-scale public arena sterilization soups such as hospital's arenas, can protect the safety of disinfect personnel.

Claims

1, a kind of electrostatic atomizer, comprise HV generator (8) with high pressure output negative pole (18), liquid storage container (9), drainage tube (4), atomising device (13), be arranged at the pump (12) in the liquid storage container (9), 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 independently on first dc source (10), and the power supply lead wire of the power supply lead wire of described shower nozzle motor (3) and pump (12) all is connected on another independently on second dc source (11).

2, electrostatic atomizer according to claim 1 is characterized in that: 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.