CN116271129A - Optical disinfection cavity - Google Patents

Abstract

The invention relates to an optical cavity, in particular to an optical disinfection cavity applied to fluid disinfection and sterilization, which comprises at least one cavity, wherein the cavity is provided with a fluid inlet, a fluid outlet and at least one light source, the light emitted by the light source enters the cavity, the cavity is formed by encircling at least 2 concave reflectors, the concave reflectors are arranged at confocal positions, the light emitted by the light source is reflected back and forth between the at least 2 concave reflectors to form a light beam net, the fluid enters the cavity from the fluid inlet and flows out of the cavity from the fluid outlet after being irradiated by the light beam net.

Description

Optical disinfection cavity

Technical Field

The invention relates to an optical cavity, in particular to an optical disinfection cavity applied to fluid disinfection.

Background

Microorganisms such as viruses and bacteria in the air can threaten the health of human bodies, different epidemic pathogens such as influenza viruses, norovirus, novel coronaviruses and the like exist in different seasons in one year, and the existence of infectious pathogens in the air has no small influence on weak people such as old people, children, pregnant women and the like. Some germs exist in not only air but also water, and cannot be seen or touched, so that the germs are difficult to kill.

In recent years, methods of air disinfection include windowed ventilation, disinfectant mopping or spraying, ozone air disinfectors, and the like; the method for disinfecting water comprises the steps of disinfecting water by using Cl and chlorine preparation, disinfecting water by using ClO2 and disinfecting water by using O3. The disinfection methods are used independently, are not convenient for being commonly used for fluid, are all real-time disinfection, require manual continuous operation, have poor disinfection effect, and are easy to produce secondary pollutants, thus being unfavorable for environmental protection.

Therefore, how to provide a device which can be generally used for fluid disinfection and ensure good disinfection effect and is beneficial to environmental protection is a technical problem to be solved in the field.

Disclosure of Invention

The invention aims to provide an optical sterilizing cavity for solving the problems, which comprises at least one cavity, wherein the cavity is provided with a fluid inlet, a fluid outlet and at least one light source, the light emitted by the light source irradiates into the cavity, the cavity is surrounded by at least 2 concave reflectors, the concave reflectors are placed in confocal positions, the light emitted by the light source is reflected back and forth between the at least 2 concave reflectors to form a light beam network, and the fluid enters the cavity from the fluid inlet and flows out of the cavity from the fluid outlet after being irradiated by the light beam network.

In one embodiment, the at least 2 concave reflectors are connected end to form a similar circular cavity, the center distance l=f1+f2 of the 2 concave reflectors is divided into the focal lengths of the first concave reflector and the second concave reflector, and the range of the distance D between the end and the end of the at least 2 concave reflectors is 0.ltoreq.D < f1+f2.

In one embodiment, the incident light from the light source irradiates the reflecting surface of the concave reflecting mirror opposite to the light source from a position which is deviated from the focal point by-1 degrees to 1 degrees.

In one embodiment, the incident light emitted by the light source irradiates the reflecting surface of the first opposite concave mirror after passing through the focal point F, the first concave mirror receives the incident light to generate parallel first reflected light, and the parallel first reflected light irradiates the second concave mirror, and then the second reflected light formed by the second concave mirror is reflected to the first concave mirror after passing through the focal point F, and finally the third reflected light formed by the first concave mirror irradiates the second concave mirror.

In one embodiment, the incident light emitted by the light source irradiates the concave reflecting mirror opposite to the light source from the position of an included angle beta of the parallel incident light, and the included angle beta ranges from-1 degrees to 1 degrees.

In one embodiment, the incident light emitted by the light source irradiates on the reflecting surface of the opposite second concave mirror in parallel, the second concave mirror receives the parallel incident light and then generates the first reflected light to irradiate back to the first concave mirror through the focus, the first concave mirror forms the second reflected light to irradiate back to the second concave mirror in parallel, and finally the second concave mirror forms the third reflected light to irradiate to the first concave mirror through the focus.

In one embodiment, an optical disinfection cavity comprises at least two light sources, wherein incident light emitted by the light sources passes through a focus and irradiates a reflecting surface of an opposite concave reflecting mirror, and angles of the incident light emitted by two adjacent light sources are different by 0.1-10 degrees.

In one embodiment, an optical disinfection cavity comprises at least two light sources, wherein the light sources emit parallel incident light to irradiate a reflecting surface of a concave opposite reflecting mirror, and the linear distance between the incident light emitted by two adjacent light sources is 0.1-10 mm.

In one embodiment, the device further comprises a light inlet, the light source is arranged outside the chamber, and the light emitted by the light source irradiates into the chamber from the light inlet.

In one embodiment, the light inlets are multiple and distributed at multiple positions on the chamber wall; the light source is a plurality of, and the light source irradiates a plurality of incident light rays into the cavity through the light inlet.

In one embodiment, the light inlet is an optical fiber mounting hole formed in the wall of the chamber, the plurality of optical fibers extend into the chamber through different optical fiber mounting holes, one end of each optical fiber is connected with the light source, the other end of each optical fiber is connected with the collimating lens, and light emitted by the light source is transmitted through the plurality of optical fibers and forms collimated light under the action of the collimating lens to irradiate the chamber.

In one embodiment, the range of angles of incidence θ of the light emitted by the light source is: θ is more than or equal to 0 degree and less than or equal to d/L/2, wherein d is the thickness of the cavity, and L is the center distance of the cavity.

In one embodiment, the cavity is formed by enclosing at least 3 concave reflectors, the concave surfaces of the 3 concave reflectors are arranged oppositely, and each concave reflector is connected end to end.

In one embodiment, the cavity is formed by enclosing 4 concave reflectors, the concave surfaces of the 4 concave reflectors are arranged oppositely, and each concave reflector is connected end to end.

In one embodiment, the concave mirror has an extension distance in the direction of fluid flow.

In one embodiment, the light source comprises at least one of an ultraviolet LED lamp, an ultraviolet mercury lamp, or a laser emitter.

In one embodiment, the fluid flows obliquely from the fluid inlet into the chamber, the angle of inclination being between 20 ° and 90 °.

In one embodiment, the reflective surface of the concave mirror is coated with a reflective film.

In one embodiment, the concave mirror is at least one of a concave-convex mirror, a convex-concave mirror, a concave-concave mirror, a flat-concave mirror, or a fresnel mirror.

The beneficial effects are that:

the optical sterilizing cavity provided by the invention has the advantages that the structure is simple, the application is convenient, and the optical sterilizing cavity can be used for sterilizing virus microorganisms existing in fluids such as air or water; the optical disinfection cavity can circularly run around the clock, and circularly disinfects and sterilizes the air or water and other fluids in the designated space, so that the disinfection effect is good; according to the invention, the optical sterilizing cavity irradiates the fluid with light, so that virus microorganisms in the fluid are deactivated, and incident light emitted by the light source forms a light beam network in the cavity, so that secondary pollution to the environment is avoided, and the environment is protected.

Drawings

FIG. 1 is a schematic view of an optical cavity in accordance with one embodiment of the present invention;

FIG. 2 is a schematic view of an optical cavity according to another embodiment of the present invention;

FIG. 3 is a schematic diagram of an optical path of incident light from an optical cancellation cavity light source of the present invention after being irradiated to a counter mirror through a focal point to form reflected light;

FIG. 4 is a schematic diagram of an optical path of incident light from an optical sterilizing chamber light source in parallel to a counter mirror to form reflected light;

FIG. 5 is a schematic view of an optical cavity according to yet another embodiment of the present invention;

FIG. 6 is a schematic diagram of a cavity and fiber distribution of 3 concave mirrors according to one embodiment of the present invention;

fig. 7 is a schematic view of a circular chamber-like structure composed of 2 concave mirrors according to an embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1-2, the present embodiment provides an optical disinfection cavity, which includes at least one cavity 10, the cavity has a fluid inlet 11, a fluid outlet 12 and at least one light source 13, the incident light emitted by the light source 13 irradiates the interior of the cavity 10, the cavity 10 is surrounded by at least 2 concave mirrors 14, the concave mirrors 14 are placed in confocal positions, the light emitted by the light source 13 is reflected back and forth between the at least 2 concave mirrors 14 to form a beam network, the fluid enters the cavity 10 from the fluid inlet 11, and flows out of the cavity from the fluid outlet 12 after being irradiated by the beam network.

In one embodiment, the light source 13 comprises at least one of an ultraviolet LED lamp, an ultraviolet mercury lamp, or a laser emitter. The ultraviolet LED lamp, the ultraviolet mercury lamp or the laser emitter can emit light for killing pathogenic microorganisms in fluid, and the light wave bands emitted by the light sources with the sterilization function belong to the prior art and are not repeated here. The light emitted by the light source 13 irradiates the fluid in the chamber 10, so that microorganisms such as bacteria and viruses in the fluid lose activity, the effects of sterilization and disinfection are achieved, and the fluid polluted by the microorganisms such as bacteria and viruses is purified and disinfected after being irradiated by the light beam net, so that the harm to human bodies is avoided.

As shown in fig. 3, in one embodiment, the incident light 130 emitted by the light source 13 irradiates the reflecting surface of the first concave mirror 141 opposite to the first concave mirror 141 after passing through the focal point F, the first concave mirror 141 receives the incident light 130 and generates parallel first reflected light 131 to irradiate back to the second concave mirror 142, the second concave mirror 142 forms the second reflected light 132, which is reflected to the first concave mirror 141 after passing through the focal point F, and finally irradiates the second concave mirror 142 via the first concave mirror 141 to form the parallel third reflected light 133.

In one embodiment, as shown in fig. 3, the incident light 130 emitted from the light source 13 irradiates the reflecting surface of the concave mirror opposite to the light source from a position deviated from the focal point by-1 ° to 1 °. The line connecting the light source 13 and the focal point F is a standard line, and the angle range described in this embodiment refers to the angle between the path of the incident light and the standard line when the incident light emitted by the light source 13 does not pass through the focal point F but deviates from the focal point F by a certain distance. After the incident light 130 is incident off the focal point F, it is reflected back and forth between the concave mirrors 14 to form a dense beam network.

As shown in fig. 4, in one embodiment, the incident light emitted by the light source 13 is irradiated onto the reflecting surface of the opposite second concave mirror 142 in parallel, the second concave mirror 142 receives the parallel incident light 130, and then generates the first reflected light 131, which irradiates back to the first concave mirror 141 through the focal point, and then the second reflected light 132 formed by the first concave mirror 141 irradiates back to the second concave mirror 142 in parallel, and finally forms the third reflected light 133 through the second concave mirror 142, which irradiates to the first concave mirror 141 through the focal point.

In one embodiment, as shown in fig. 4, the incident light emitted by the light source 13 is irradiated to the concave mirror opposite to the light source from the position of the included angle beta of the parallel incident light, and the included angle beta ranges from-1 ° to 1 °. The path of the incident light to the opposite concave mirror is a standard line, and the angle range described in this embodiment means that when the incident light emitted by the light source 13 deviates from the standard line by a certain distance, the included angle between the incident light and the standard line is β. The incident light is reflected back and forth between the concave reflecting mirrors 14 after being incident at an included angle beta from the parallel incident light, so as to form a compact beam network.

As shown in fig. 1 to fig. 2, in one embodiment, the device comprises at least two light sources 13, the light sources can be flexibly arranged according to different usage scenes and devices, the light sources 13 comprise, but are not limited to, 5 to 100 light sources 13, the light sources 13 are uniformly distributed at different positions in the chamber 10, light emitted by each light source 13 passes through a focus and irradiates the reflecting surface of the opposite concave reflector 14, the opposite concave reflector 14 receives incident light to generate a first beam of parallel reflected light to irradiate back to the reflecting surface of the light source side concave reflector 14 to form a reflected light beam passing through the focus to irradiate to the opposite reflecting surface to form a second beam of parallel reflected light to irradiate back to the light source side concave reflector 14, and the cooperation of the confocal concave reflector 14 and the plurality of light sources 13 can form a light beam network in the chamber 10 to kill bacterial virus microorganisms in fluid flowing through the chamber 10; preferably, the method comprises the steps of. The angles of the incident light emitted from the adjacent two light sources 13 differ by 0.1 ° to 10 °, more preferably the angles of the incident light emitted from the adjacent two light sources 13 differ by 0.1 ° to 5 °, and a plurality of incident light beams form compact incident light beams, each of which can form a compact light beam network inside the chamber 10 under the aforementioned reflection principle of the concave mirror, so as to more thoroughly purify and disinfect the fluid flowing through the chamber 10.

As shown in fig. 1-2, in one embodiment, the device includes at least two light sources 13, and the setting positions of the light sources can be flexibly set by a user according to the use scene and the device, including but not limited to 5 to 50 light sources 13, where the light sources 13 emit parallel incident light to impinge on the reflecting surface of the opposite concave mirror, and the principle of forming the beam network is similar to that of the foregoing embodiment, and will not be repeated herein. The light sources 13 are uniformly distributed at different positions inside the chamber 10, the linear distance between the incident lights emitted by two adjacent light sources 13 is 0.1 mm-10 mm, a plurality of incident lights form compact incident light beams, and each incident light beam can form a compact light beam network inside the chamber 10 under the reflection principle of the concave reflector, so that the fluid flowing through the chamber 10 can be purified and disinfected more thoroughly.

As shown in fig. 5 to 6, in one embodiment, the apparatus further includes a light inlet 15, the light source 13 is disposed outside the chamber 10, and the incident light emitted from the light source 10 is irradiated into the chamber 10 through the light inlet 15.

As shown in fig. 5 to 6, in one embodiment, the light inlets 15 are multiple and distributed at multiple positions on the chamber wall; the light sources 13 are plural, and the light sources 13 irradiate plural incident light rays into the chamber 10 through the light inlet 15.

In one embodiment, as shown in fig. 6, the light inlet 15 is an optical fiber mounting hole formed on a wall of the chamber, the plurality of optical fibers extend into the chamber 10 through different optical fiber mounting holes, one end of each optical fiber is connected with a light source, the other end of each optical fiber is connected with a collimating lens, the light emitted by the light source is transmitted through the plurality of optical fibers and forms collimated light under the action of the collimating lens, and the collimating lens is a plano-convex lens.

As shown in fig. 2 to 3, in one embodiment, the range of the incident angle θ of the light emitted from the light source is: θ is more than or equal to 0 degree and less than or equal to d/L/2, wherein d is the thickness of the cavity, and L is the center distance of the cavity.

As shown in fig. 1 to 7, in one embodiment, the at least 2 concave mirrors 14 are connected end to enclose a similar circular chamber 10, the center distance l=f1+f2 of the 2 concave mirrors 14 is divided into the focal lengths of the first concave mirror 141 and the second concave mirror 142 by f1 and f2, and the range of the distance D between the end and the end of the at least 2 concave mirrors 14 is 0.ltoreq.d < f1+f2.

In one embodiment, as shown in fig. 6, the chamber 10 is enclosed by at least 3 concave mirrors 14, where the concave surfaces of the 3 concave mirrors 14 are disposed opposite to each other, and each concave mirror is disposed end to end.

In one embodiment, the chamber 10 is surrounded by 4 concave mirrors, the concave surfaces of the 4 concave mirrors are disposed opposite to each other, and each concave mirror is connected end to end. The 4 concave reflectors can be arranged in a way that every two concave reflectors are opposite to each other, and every two concave reflectors are connected end to end.

In one embodiment, the concave mirror 14 has an extension distance in the direction of fluid flow.

In one embodiment, the fluid flows obliquely from the fluid inlet into the chamber 10, the angle of inclination being between 20 ° and 90 °. The fluid flows into the chamber 10 obliquely, so that the time for the beam network to irradiate the fluid can be increased, and the fluid purifying effect is better.

In one embodiment, the reflective surface of the concave mirror is coated with a reflective film.

In one embodiment, the concave reflecting mirror is at least one of a concave-convex mirror, a convex-concave mirror, a concave-concave mirror, a flat-concave mirror or a fresnel mirror, and the morphological structure of the concave-convex mirror, the convex-concave mirror, the concave-concave mirror, or the flat-concave mirror or the fresnel mirror belongs to the prior art, and is not described herein.

It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (19)

1. An optical disinfection cavity comprises at least one cavity, wherein the cavity is provided with a fluid inlet, a fluid outlet and at least one light source, and light emitted by the light source enters the cavity.

2. An optical cavity as claimed in claim 1, wherein: the at least 2 concave reflectors are connected end to form a similar circular cavity, the center distance L=f1+f2 of the 2 concave reflectors is divided into the focal lengths of the first concave reflector and the second concave reflector, and the range of the head-to-tail distance D of the at least 2 concave reflectors is more than or equal to 0 and less than or equal to D < f1+f2.

3. An optical cavity according to claim 1 wherein the light source emits incident light from a location-1 ° to 1 ° from the focal point onto the reflective surface of the concave mirror opposite the light source.

4. The optical sterilizing chamber according to claim 1, wherein the incident light from the light source irradiates the reflecting surface of the first opposite concave mirror after passing through the focal point, the first concave mirror receives the incident light to generate parallel first reflected light, and the second concave mirror forms second reflected light, which is reflected to the first concave mirror after passing through the focal point, and finally forms parallel third reflected light to the second concave mirror after passing through the first concave mirror.

5. An optical cavity according to claim 1, wherein the incident light from the light source is directed to the concave mirror opposite the light source at an angle β from the parallel incident light, said angle β being in the range of-1 ° to 1 °.

6. The optical sterilizing chamber according to claim 1, wherein the incident light from the light source is irradiated onto the reflecting surface of the opposite second concave mirror in parallel, the second concave mirror receives the parallel incident light and generates the first reflected light, which irradiates back to the first concave mirror through the focal point, the second reflected light formed by the first concave mirror irradiates back to the second concave mirror in parallel, and finally the third reflected light formed by the second concave mirror irradiates to the first concave mirror through the focal point.

7. An optical cavity according to claim 4 comprising at least two light sources, the angles of incidence of the light from adjacent light sources differing by 0.1 ° to 10 °.

8. An optical cavity according to claim 6 comprising at least two light sources, the linear spacing of the incident light from adjacent sources being between 0.1mm and 10mm.

9. An optical disinfection chamber as claimed in claim 1, further comprising a light inlet, said light source being disposed outside the chamber, light from said light source being directed into the chamber from said light inlet.

10. An optical cavity according to claim 9 wherein said light inlets are plural and distributed at plural locations on the chamber wall; the light source is a plurality of, and the light source irradiates a plurality of incident light rays into the cavity through the light inlet.

11. An optical sterilizing chamber according to claim 9 wherein the light inlet is an optical fiber mounting hole formed in the chamber wall, a plurality of optical fibers extend into the chamber through different optical fiber mounting holes, one end of each optical fiber is connected to the light source, the other end of each optical fiber is connected to the collimating mirror, and light from the light source is transmitted through the plurality of optical fibers and forms collimated light under the action of the collimating mirror to illuminate the chamber.

12. An optical cavity according to claim 1, wherein the range of angles of incidence θ of the light emitted by the light source is: θ is more than or equal to 0 degree and less than or equal to d/L/2.

13. An optical cavity according to claim 1 wherein said cavity is defined by at least 3 concave mirrors, the concave surfaces of said 3 concave mirrors being disposed opposite each other, each concave mirror being disposed end-to-end.

14. An optical cavity according to claim 1 wherein said cavity is defined by 4 concave mirrors, the concave surfaces of said 4 concave mirrors being disposed opposite each other, each concave mirror being disposed end-to-end.

15. An optical disinfection chamber according to claim 1 wherein said concave mirror has an extension in the direction of fluid flow.

16. An optical disinfection chamber according to claim 1 wherein said light source comprises at least one of an ultraviolet LED lamp, an ultraviolet mercury lamp or a laser emitter.

17. An optical disinfection chamber as claimed in claim 1, wherein said fluid is inclined to flow into the chamber from the fluid inlet, said inclination being between 20 ° and 90 °.

18. The optical cavity of claim 1 wherein the reflective surface of the concave mirror is coated with a reflective film.

19. An optical cavity as claimed in claim 1, wherein: the concave reflecting mirror is at least one of a concave-convex mirror, a convex-concave mirror, a double-concave mirror, a flat-concave mirror or a Fresnel mirror.

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