Unlock instant, AI-driven research and patent intelligence for your innovation.

An electrostatic sprinkler for solar greenhouse

A technology for solar greenhouses and nozzles, which is applied in the direction of electrostatic spraying devices, spraying devices, spraying electric energy devices, etc., and can solve problems such as poor effect, poor electrification effect of droplets, and reduction of electric field intensity at the nozzle.

Active Publication Date: 2022-07-22
JIANGSU UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent application CN201910669205.1 discloses an induction electrostatic atomization nozzle. By installing a high-voltage electrostatic device (electrode ring) at the entrance of the liquid pipeline, the electrode ring is kept away from the nozzle, thereby reducing the electric field strength at the nozzle. Although this design avoids the adsorption of charged droplets on the nozzle to a certain extent, because the electrode ring is far away from the nozzle, the charge of the droplets is less, so the charging effect of the droplets is poor.
[0007] Chinese patent application CN201410679106.9 discloses an air-assisted fan-shaped electrostatic spray head. Aiming at the relatively small fog cone angle of the conical spray head and the fact that the spray uniformity cannot be well guaranteed due to repeated spraying, the spray nozzle is designed. A fan-shaped electrostatic nozzle, by arranging double-plate electrodes in the electrode groove, the double-plate electrodes and the fan-shaped water film form two parallel capacitors when the nozzle is working, and both capacitors establish an electrostatic field. This design combines induction charging The advantages of technology and gas-assisted atomization technology make the droplet particle size spectrum uniform and small
[0008] Literature: Design and experiment of dual-air flow-assisted electrostatic nozzle[J]. Jiangsu Agricultural Science, 2017, 45(24):192-196. A dual-air-assisted nozzle was designed. As mentioned above, the inductive charging method used by the nozzle is not effective in the solar greenhouse environment, but the design of its double air flow channel can improve the problem of the droplets being adsorbed on the nozzle to a certain extent. And can make the droplets reach the target more quickly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An electrostatic sprinkler for solar greenhouse
  • An electrostatic sprinkler for solar greenhouse
  • An electrostatic sprinkler for solar greenhouse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 An electrostatic spray head shown, the main structural components include an insulating airflow cover 1, a nozzle head 2, a nozzle filter screen 3, a nozzle seat 4, a top metal plate 5, a bottom metal plate 6, a strip electrode 7, and a charging inner cavity 8 , pipe sleeve 9, one-way check valve 10, air inlet 11, etc. Among them, the nozzle head 2, the nozzle seat 4 and the tube sleeve 8 form a closed space. In this closed space, a double sector plate capacitor composed of a top metal plate 5, a bottom metal plate 6 and a strip electrode 7 is designed as a The charging unit of the spray head, the charging inner cavity 8, charges the liquid in the closed space. The medicinal liquid is pumped out of the medicine box by the high-pressure pump and then reaches the charging inner cavity 8 of the electrostatic spray head, and is atomized and sprayed after the charging is completed in the charging inner cavity 8 .

[0026] like figure 1 As shown, the nozzle h...

Embodiment 2

[0032] When the contact charging method is adopted, the fan-shaped capacitor electrode plate inside the nozzle holder 4 is in direct contact with the liquid, and the high-voltage electric field generated by the electrode plate directly charges the liquid in the charging cavity. When the charging voltage U applied to the electrode plate is constant, the amount of charge Q generated by the capacitor is: Q=C×U, which is also a constant value, where C is the permittivity of the electrode.

[0033] From the above analysis, it can be concluded that when the charging voltage applied to the electrode plate is constant, the amount of charge generated by the capacitor is constant. The greater the charge of the liquid, the greater the charge of the charged droplet is of great significance in conventional plant protection operations.

[0034] like figure 2 shown, the charging process of the liquid in the designed closed charging cavity is represented.

[0035] L stands for liquid parti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electrostatic spray head suitable for a greenhouse, and relates to electrostatic spray technology, in particular to an electrostatic spray head suitable for a solar greenhouse. It includes nozzles, nozzle holders, insulating air hoods, one-way check valves and water inlet pipes. The airflow drag force at the nozzle is increased by designing the airflow hood, so that the charged droplets are ejected from the nozzle to avoid being adsorbed on the nozzle and other metal parts of the sprayer, and the speed of the droplets can be increased. By designing a fan-shaped plate capacitor fixed on the inner wall of the nozzle seat, a closed charging inner cavity is formed, and the liquid is charged by the method of contact charging, which avoids the charging electrode in the inductive charging method being exposed to the air. , resulting in its instability in the high temperature and high humidity environment of the greenhouse. By designing a fan-shaped plate capacitor with strip electrodes, a non-uniform electrostatic field is formed, which increases the electric field strength of the charging, increases the charging amount of the charged droplets, and improves the charging effect of the droplets.

Description

technical field [0001] The invention relates to electrostatic spray technology, in particular to an electrostatic spray head suitable for a solar greenhouse. The utility model is used for the spray operation of the sunlight densely planted greenhouse vegetation, and belongs to the field of plant protection machinery. Background technique [0002] With the popularization of solar greenhouses and in order to meet the requirements of safe application of pesticides and protection of the ecological environment, how to closely integrate new plant protection technologies with the greenhouse environment to achieve more efficient and greener plant protection operations in solar greenhouses is an urgent problem to be solved. . [0003] Electrostatic spraying technology is a new type of spraying technology, mainly through inductive charging, corona charging, contact charging and other methods to charge the droplets, relying on the electrostatic effect between the charged droplets and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B05B5/03B05B5/053
CPCB05B5/03B05B5/0533
Inventor 邱白晶王尚峰
Owner JIANGSU UNIV