Low-damage pneumatic-assisted centrifugal atomizing nozzle and atomizing method for liquid pollination

By combining pneumatically assisted centrifugal atomizing nozzles with laser particle size analysis and a closed-loop control system, the problems of pollen damage and uneven droplet distribution in cross-pollination were solved, achieving low-damage and high-efficiency liquid pollination, reducing costs and improving fruit yield and quality.

CN122319941APending Publication Date: 2026-07-03SHANGHAI OPEN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI OPEN UNIVERSITY
Filing Date
2026-04-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies for cross-pollination suffer from problems such as significant pollen viability loss, uneven droplet size, low pollen utilization, and high costs. In particular, high-speed atomization technology causes pollen cell wall tearing, making it difficult to achieve low-damage, small-particle-size atomization.

Method used

It adopts a pneumatically assisted centrifugal atomizing nozzle, monitors the droplet size in real time with a laser particle size analyzer, and combines the synergistic effect of the guide ring and centrifugal disc to adjust the droplet size by using airflow and centrifugal force to achieve efficient atomization at low speed. The rotation speed is dynamically adjusted through a closed-loop control system to achieve the target particle size.

Benefits of technology

It achieves precise control of droplet size, reduces pollen damage rate, improves utilization rate, reduces cost, has wide adaptability, and is suitable for efficient pollination of a variety of cross-pollinated plants.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a low-damage pneumatically assisted centrifugal atomizing nozzle and atomization method for liquid pollination. It belongs to the technical field of agricultural pollination equipment. The invention innovatively integrates a pneumatic atomization module, a centrifugal atomization module, and a pneumatic liquid supply system. On the one hand, the pneumatic transport method avoids the squeezing damage to pollen caused by the pulsating high pressure during liquid pump operation; on the other hand, the dual action of high-speed airflow and centrifugal force promotes early breakage of the liquid film, obtaining optimal pollination droplets. A laser particle size analyzer is added to monitor the droplet size distribution in real time and feed the results back to the controller, forming a closed-loop control: if the droplet size does not meet the standard, the controller only adjusts the centrifugal nozzle speed to optimize the particle size, ensuring precise and controllable droplet distribution with low damage. This invention effectively overcomes the technical difficulties of low pollen activity and uneven droplet distribution during liquid pollination of cross-pollinated plants, effectively avoiding mechanical stress damage to pollen caused by atomization and improving the efficiency of liquid pollination operations.
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