High-frequency and high-speed micron-sized droplet generating device

Abstract

The invention discloses a droplet generating device which is used for changing static liquid materials into droplets and then ejecting the droplets at a certain speed. The droplet generating device comprises a liquid storage tank (9) and a cavity. The liquid storage tank (9) is used for storing the liquid materials (8), the bottom of the liquid storage tank (9) is communicated with at least one feeding guide tube (10), a turning wheel (11) is arranged in the center of the cavity, and the central axis of the turning wheel (11) is parallel to the horizontal plane; the feeding guide tubes (10) penetrate the upper portion of the cavity and reach space where the turning wheel (11) is located, so that the liquid materials (8) in the liquid storage tank (9) can drop on a side surface of the turning wheel (11) via the feeding guide tubes (10), and the liquid materials which flow into the turning wheel can be accelerated by the turning wheel (11) and then can be thrown out in a droplet form from a tangential direction of the side surface of the turning wheel (11). The droplet generating device has the advantages that micron-sized droplets with certain initial speed can be generated by the droplet generating device, and the ejection frequency and the diameters of the micron-sized droplets are stable and adjustable.

Description

technical field [0001] The invention relates to a micron-scale droplet generating device with high ejection frequency, high initial velocity and stable size, which belongs to the field of instruments and meters. Background technique [0002] With the improvement of technology level, more and more fields need to provide droplet generating devices with micron diameter, stable size, high output frequency and a certain initial velocity, such as soft X-ray, extreme ultraviolet luminescence, inkjet printing, etc. . This type of demand has stimulated the emergence of relevant research. [0003] For example, the U.S. patent with the publication number US4723262B1 and the invention name "APPARATUS FOR PRODUCTION SOFT X-RAYS USING A HIGH ENERGY LASER BEAM" utilizes the pressure difference of the liquid to press the liquid in the liquid storage tank through the conduit to form a droplet flow. The device has a simple structure, but cannot effectively control the droplet diameter, drop...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide a simple and reliable high-frequency, high-speed, micron-scale droplet generating device to solve the problem of low droplet ejection frequency, difficult initial velocity control, and unstable diameter of the outgoing droplet in the existing droplet generating device. , complex structure of the device, etc.

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