Multi-beam multi-dimensional scanning laser virus killing and sterilizing device and method

Abstract

The invention relates to a multi-beam and multi-dimensional scanning laser virus killing and sterilizing device and method. The device comprises a laser, an optical splitter, a conduction optical fiber, a flat plate array, a deflection unit, a scanning motor, a rotating holder, a power supply unit and a control module. The scanning motor is fixed on the flat plate array, and the flat plate array is placed on the rotating holder. The flat plate array and the rotating holder form a coarse scanning mechanism of a laser beam, and the rotating holder drives the flat plate array to pitch or horizontally rotate; the deflection unit and the scanning motor form a laser beam fine scanning mechanism, and the scanning motor drives the deflection unit and the laser beam emitted by the deflection unit to deflect and scan together. The device has the characteristics of multiple light beams, multiple dimensions, multiple angles, high scanning speed, flexible use mode and wide application range.

Description

technical field [0001] The invention belongs to the technical field of laser disinfection and sterilization, and in particular relates to a laser disinfection device and method for multi-beam multi-dimensional scanning. Background technique [0002] At present, the method of spraying liquid disinfectant is mainly used to disinfect the new coronavirus on the surface of imported items and cold chain food. The main problems are: liquid disinfectant is easy to solidify in low temperature environment, which affects the disinfection effect; liquid disinfectant is easy to remain and contaminate food ;Disinfection is carried out by personnel at close range, which increases the risk of disinfection personnel being infected, and it is difficult for personnel to stay in a low-temperature environment for a long time, which affects the implementation of disinfection operations; the application of too many disinfectants is likely to cause a certain degree of pollution to the surrounding env...

AI Technical Summary

Problems solved by technology

[0002] At present, the method of spraying liquid disinfectant is mainly used to disinfect the new coronavirus on the surface of imported items and cold chain food. The main problems are: liquid disinfectant is easy to solidify in low temperature environment, which affects the disinfection effect; liquid disinfectant is easy to remain and contaminate food ;Disinfection is carried out by personnel at close range, which increases the risk of disinfection personnel being infected, and it is difficult for personnel to stay in a low-temperature environment for a long time, which affects the implementation of disinfection operations; the application of too many disinfectants is likely to cause a certain degree of pollution to the surrounding environment ; The virus has a strong ability to survive in a low temperature environment, and may have a certain tolerance to disinfectants, leading to several times of cold chain food disinfection failure and reinfection, etc.

[0003] Although the devices and methods of laser antivirus and electron beam antivirus have recently begun to emerge in the disinfection of new coronaviruses in cold chain food or logistics commodities, the actual application of related equipment is still subject to certain restrictions

Prior art CN112190727A patent "A Conveyor Belt-Based Ultraviolet Laser Sterilization System and Method" uses the linear laser output from multiple ultraviolet lasers and the conveying movement of the conveyor belt to realize the distribution of laser light in the target area. This laser irradiation method requires many Two lasers work at the same time, and laser irradiation blind spots are prone to appear on the surface of irregular objects; CN112180585A patent "a laser anti-virus device and method based on optical phased array scanning mode" uses the combination of optical phased array and grating coupler to realize laser irradiation In the two-dimensional scanning laser antivirus device, the distribution of laser intensity in the irradiation area is formed by the diffraction of the coupling grating, and there is an uneven distribution state of extremely strong and extremely weak energy, and the manufacturing process requirements of the waveguide phased array and the grating device are relatively high. complex, which limits the application of this technique

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