A fan-shaped air suction nozzle with automatic adjustment of suction speed
A technology of automatic adjustment and speed, applied in the direction of injection device, liquid injection device, etc., can solve the problems of limited mixing efficiency, affecting the atomization effect, unable to guarantee the air intake speed, etc., to achieve the effect of gas-liquid mixing and good gas-liquid mixing
Active Publication Date: 2022-04-26
JIANGSU UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the structure of the air intake channel of the existing air-suction nozzle is fixed, and the air intake speed cannot be adjusted. When the spray pressure changes, the air intake speed will change, and a suitable air intake speed cannot be guaranteed.
At the same time, the angle between the centerline of the air inlet channel of the existing air suction nozzle and the centerline of the liquid channel is 90°, the mixing efficiency is limited when the air and the liquid collide, and the sufficient mixing of the liquid medicine and the air cannot be guaranteed, thus affecting the atomization effect
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 2
[0075] According to the research results of the existing air-suction nozzles, when a fan-shaped air-suction nozzle that can automatically adjust the air intake is used in conjunction with the present embodiment, the diameter at the entrance of the tapered section 11 is 6mm, and the diameter at the exit of the tapered section 11 is 6 mm. The diameter and the diameter of the straight column section 6 at the air inlet are 3mm; the air intake channel 4 section is a rectangle with a length of 3mm and a width of 1.5mm; 2mm, the area S of the contact surface between the air inlet orifice plate 3 and the liquid in the pressure tank 2 c is the product of the width and thickness of the air inlet orifice plate 3, that is, S c 9mm 2 ; The diameter of the through hole on the air inlet orifice plate 3 is 0.4mm, i.e. the area of the through hole S 0 0.1256mm 2 ; The spring 5 selects a round wire coil spring with an outer diameter of 2mm, a natural length of 6mm, and an elastic coefficie...
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
Login to view more Abstract
The invention provides a fan-shaped air-suction nozzle that automatically adjusts the suction speed, including a nozzle body and a liquid channel. The nozzle body is provided with a liquid channel communicated with the nozzle hole, and also includes a pressure groove and an air intake channel; the liquid channel inlet The section communicates with the pressure tank, and the air inlet channel passes through the pressure tank and communicates with the liquid channel; the air inlet orifice plate is installed in the pressure tank through an elastic damping device, and the inlet orifice plate is placed in the pressure tank by the change of the inlet pressure of the liquid channel. Move at the intersection with the air intake channel; the air intake orifice plate is provided with a number of through holes of the same or different sizes, through which the air intake orifice plate moves in the pressure groove to change the air intake in the liquid channel. The invention can automatically adjust the air intake speed according to the pressure change of the liquid flowing into the nozzle, so that the inhaled gas can more fully collide with the liquid in the straight column section at the air intake of the liquid channel, so that the air and the pressure liquid can be better mixed .
Description
technical field [0001] The invention relates to the field of atomization and spraying of plant protection machinery, in particular to a fan-shaped air suction spray head which can automatically adjust the suction speed. Background technique [0002] Spray drift is an important factor affecting the quality of spraying operations and causing pesticide hazards. Air suction nozzles are an effective anti-drift technology. Based on the Venturi effect, the air-suction nozzle automatically inhales air and mixes with the liquid medicine to form a gas-liquid mixed flow, and the droplets formed by its atomization have a large particle size and are not easy to drift. According to the law of Kelvin-Helmholtz instability, instability occurs inside a fluid with a shear force velocity or at the interface of two different fluids with a velocity difference. full. However, the structure of the air intake channel of the existing air-suction nozzle is fixed, and the air intake speed cannot be ...
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
Login to view more Patent Type & Authority Patents(China)
IPC IPC(8): B05B7/04
CPCB05B7/0416B05B7/0425B05B12/1436B05B7/1254B05B12/085B05B7/0475
Inventor 龚辰李东阳王育立高波
Owner JIANGSU UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap