A flow sterilization device

Abstract

The present invention provides an over-flow sterilization device, comprising a fluid tube having a first end and a second end extending axially, the fluid tube being provided with a first flow path from the first end to the second end, the fluid to be sterilized flowing in the first flow path; a light source being provided near the first end of the fluid tube, the light source irradiating ultraviolet light from the first end to the first flow path; a heat dissipation chamber being provided near the light source, the heat dissipation chamber being provided with a second flow path, the heat dissipation fluid flowing in the second flow path. The present invention provides a first flow path in the fluid tube to ensure that the fluid to be sterilized can flow stably in the fluid tube; at the same time, the light source is accommodated in the light source chamber, and ultraviolet light is provided by the light source. The sterilization characteristics of ultraviolet light can be used to sterilize the fluid to be sterilized in the fluid tube; and a second flow path for reducing the temperature of the light source is provided in the heat dissipation chamber, and the heat dissipation fluid flowing in the second flow path takes away the heat of the light source, thereby reducing the temperature of the light source.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, in particular to an overflow sterilization device. Background Art

[0002] It's well known that ultraviolet light has germicidal properties. Devices that emit ultraviolet light are used in medical and food processing settings for sterilization. Fluids (such as water) are also sterilized through continuous exposure to ultraviolet light. Traditional ultraviolet lamps are mercury or mercury vapor lamps. The principle of these lamps is simple: high-energy electrons emitted by a cathode ray tube excite atoms in mercury vapor into an excited state. The excited electrons then return to their ground state, emitting ultraviolet light. Currently, ultraviolet light is the most popular product for ultraviolet disinfection and fluid sterilization. Fluorescent tubes and energy-saving lamps are also among the largest applications of mercury lamps. However, the Minamata Convention on Mercury, which officially came into effect in China on August 16, 2017, imposes restrictions on mercury-containing products. Mercury-containing products that will be banned from production and import by 2020 include batteries, switches and relays, certain types of fluorescent lamps, soaps, and cosmetics.

[0003] The prior art provides artificial deep ultraviolet light sources, namely UV-LED devices. However, the UV-LED devices currently on the market still have the following problems: there is no flow path for sterilizing the fluid, resulting in unstable fluid flow; there is also no heat dissipation function, resulting in poor heat dissipation performance of the entire device and the light source. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an overflow sterilization device for solving the problems existing in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides an overflow sterilization device, characterized in that it includes:

[0006] a fluid tube having a first end and a second end extending in an axial direction, wherein the fluid tube is provided with a first flow path from the first end to the second end, and the fluid to be sterilized flows in the first flow path;

[0007] a light source disposed near the first end of the fluid tube, the light source irradiating ultraviolet light from the first end toward the first flow path;

[0008] The heat dissipation chamber is arranged close to the light source, and the heat dissipation chamber is provided with a second flow path, and the heat dissipation fluid flows in the second flow path.

[0009] Optionally, a light source chamber is further included, the light source chamber being located between the fluid pipe and the heat dissipation chamber; the light source is accommodated in the light source chamber;

[0010] It also includes a dimming element accommodated in the light source chamber; the dimming element is located between the light source and the first light-transmitting element; along the direction from the light source to the first light-transmitting element, the radial cross-sectional area of ​​the dimming element gradually increases.

[0011] Optionally, a first light-transmitting member is further included, which is located between the light source chamber and the first end portion of the fluid tube and transmits the ultraviolet light emitted by the light source to the first flow path.

[0012] Optionally, the fluid tube is provided with one or more sterilization fluid inlets along the axial direction and / or the circumferential direction; and the fluid tube is provided with one or more sterilization fluid outlets along the axial direction and / or the circumferential direction.

[0013] Optionally, it further comprises a shell; the shell is provided with a heat dissipation chamber and a light source chamber;

[0014] The shell is connected to the first end of the fluid pipe; the shell is provided with one or more heat dissipation fluid inlets and one or more heat dissipation fluid outlets.

[0015] Optionally, one or more guide plates are further provided in the heat dissipation chamber; the flow path of the heat dissipation fluid in the second flow path changes with the position of the one or more guide plates.

[0016] Optionally, a second light-transmitting member is further included; the second light-transmitting member is disposed near the second end portion of the fluid tube and transmits the ultraviolet light irradiated to the second end portion of the fluid tube to the outside of the fluid tube.

[0017] Optionally, a light shielding plate is further included, which is arranged close to the second light-transmitting member, and the radial cross-sectional area of ​​the light shielding plate is larger than that of the second light-transmitting member; the ultraviolet light transmitted outward by the second light-transmitting member is controlled by the light shielding plate.

[0018] Optionally, a detection chamber is further included, in which a fixing seat for placing an ultraviolet light detector is provided. The ultraviolet light detector can detect the illumination and / or wavelength of the ultraviolet light transmitted outward by the second light-transmitting member.

[0019] Optionally, a detection plate is also included, which is located between the second light-transmitting member and the light-shielding plate; a detection port is provided on the detection plate, and the radial cross-sectional area of ​​the detection port is smaller than that of the second light-transmitting member; the ultraviolet light detector detects the illuminance and / or wavelength of the ultraviolet light transmitted outward from the second light-transmitting member through the detection port.

[0020] Optionally, the inner wall of the fluid tube is provided with one or more reflective layers;

[0021] The reflective layer is made of polytetrafluoroethylene and / or the reflective layer is made of reflective glass.

[0022] Optionally, a sealing plate is further included, and the sealing plate is located between the second light-transmitting member and the detection plate.

[0023] Optionally, an exhaust mechanism is further included; the exhaust mechanism is composed of an exhaust valve fixedly connected to the fluid pipe and one or more exhaust holes opened on the fluid pipe.

[0024] Optionally, a power supply box for providing power to the light source is further included, and the power supply box is connected to the side wall of the fluid tube.

[0025] As described above, the present invention provides an over-flow sterilization device having the following beneficial effects: by providing a first end and a second end extending axially in a fluid tube, and providing a first flow path from the first end to the second end in the fluid tube, the fluid to be sterilized flows in the first flow path; a light source is provided near the first end of the fluid tube, and the light source irradiates ultraviolet light from the first end to the first flow path; a heat dissipation chamber is provided near the light source, and the heat dissipation chamber is provided with a second flow path, and the heat dissipation fluid flows in the second flow path. The present invention provides a first flow path in the fluid tube to ensure that the fluid to be sterilized can flow stably in the fluid tube; at the same time, the light source is accommodated in the light source chamber, and ultraviolet light is provided by the light source. The sterilization characteristics of ultraviolet light can be used to sterilize the fluid to be sterilized in the fluid tube; and a second flow path for reducing the temperature of the light source is provided in the heat dissipation chamber, and the heat of the light source is taken away by the heat dissipation fluid flowing in the second flow path, thereby reducing the temperature of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the explosion structure of an overflow sterilization device provided in one embodiment;

[0027] Figure 2 A cross-sectional view of an overflow sterilization device provided in one embodiment;

[0028] Figure 3 A front view of an overflow sterilization device provided in one embodiment;

[0029] Figure 4 For the Figure 3 Cross-sectional view of the mid-CC line;

[0030] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at X in the middle;

[0031] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at Y in the middle;

[0032] Figure 7 A cross-sectional view of an overflow sterilization device provided in another embodiment;

[0033] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at N in the figure.

[0034] Component number description

[0035] 1 fluid tube; 100 first flow path; 110 first end portion; 120 second end portion; 130 sterilization fluid inlet; 140 sterilization fluid outlet; 150 reflective layer;

[0036] 2 housing; 20 water inlet cover; 21 light source housing; 200 light source chamber; 210 light source; 220 dimming element; 230 first light-transmitting element;

[0037] 3 heat dissipation chamber; 310 heat dissipation fluid inlet; 320 heat dissipation fluid outlet; 330 guide plate; 340 line channel; 350 breathing hole; 360 heat dissipation cover; 370 waterproof connector; 380 breathing valve;

[0038] 4 second light-transmitting member; 5 sealing plate;

[0039] 6 detection plate; 600 detection port; 610 first sterilization fluid outlet pipe;

[0040] 7 visor;

[0041] 8 detection chamber; 810 fixing seat; 820 second sterilization fluid outlet pipe;

[0042] 9 exhaust hole; 10 exhaust valve; 11 power supply box; 12 bracket. DETAILED DESCRIPTION

[0043] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0044] See also Figures 1 to 8It should be noted that the diagrams provided in this embodiment are only schematic illustrations of the basic concept of the present invention. Therefore, the diagrams only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation can be changed at will, and the component layout type may also be more complex. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the limiting conditions for the implementation of the present invention and therefore have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0045] See also Figures 1 to 8 This embodiment provides an overflow sterilization device, comprising:

[0046] The fluid tube 1 has a first end 110 and a second end 120 extending axially opposite the first end 110. The fluid tube 1 is provided with a first flow path 100 extending axially from the first end 110 to the second end 120 for sterilizing the fluid to be treated. The fluid to be sterilized flows in the first flow path 100. In this embodiment, the fluid tube 1 can be a circular or polygonal tube. The length of the first flow path 100 and the radial width of the fluid tube 1 can be flexibly set according to actual conditions, and this embodiment of the application does not impose any size restrictions. The first flow path is provided in the fluid tube to ensure that the fluid to be sterilized can flow stably within the fluid tube.

[0047] The light source chamber 200 is arranged near the first end 110 of the fluid tube 1, and the light source chamber 200 accommodates a light source 210; the light source 210 emits ultraviolet light and irradiates the first flow path 100 axially from the first end 110; wherein, the light source 210 in this embodiment is generated by one or more lamp beads.

[0048] The heat dissipation chamber 3 is disposed near the light source 210 and is provided with a second flow path for reducing the temperature of the light source 210. A heat dissipation fluid flows in the second flow path. The heat dissipation fluid in the embodiment of the present application can be a fluid to be sterilized, a fluid that has been sterilized, or another fluid. The heat dissipation chamber is provided to allow the heat dissipation fluid to flow in the second flow path. The heat dissipation fluid flowing in the second flow path removes heat from the light source, thereby reducing the temperature of the light source and the device.

[0049] The present invention provides a first flow path in the fluid tube to ensure that the fluid to be sterilized can flow stably in the fluid tube; at the same time, a light source is accommodated in a light source chamber, and ultraviolet light is provided by the light source. The sterilization characteristics of ultraviolet light can be used to sterilize the fluid to be sterilized in the fluid tube; and a second flow path for reducing the temperature of the light source is provided in the heat dissipation chamber, and the heat dissipation fluid flows in the second flow path to take away the heat of the light source, thereby reducing the temperature of the light source and the device.

[0050] Specifically, it also includes a first light-transmitting member 230, which is located between the light source chamber 200 and the first end portion 110. The first light-transmitting member 230 transmits the ultraviolet light emitted by the light source 210 into the first flow path 100, and sterilizes the fluid to be sterilized in the first flow path 100 through the transmitted ultraviolet light. At the same time, the first light-transmitting member 230 can also prevent the fluid to be sterilized from flowing into the light source chamber 200. When the fluid to be sterilized flows in the fluid tube 1 according to the first flow path 100, one or more layers of reflective layer 150 can be provided on the inner wall of the fluid tube 1 to improve the sterilization efficiency. The first light-transmitting member 230 includes one of the following: an optical lens, a light-transmitting film, or a device made of a light-transmitting material; the reflective layer 150 includes but is not limited to a reflective layer made of polytetrafluoroethylene or a reflective layer made of reflective glass. In the embodiment of the present application, the fluid tube 1 is a fluid tube 1 made of chlorine-resistant and corrosion-resistant materials.

[0051] If the ultraviolet light emitted by the lamp beads is directly used to irradiate the fluid, the utilization rate of the ultraviolet light will be low; therefore, the emitted ultraviolet light needs to be adjusted to improve its utilization rate. Specifically, a dimming element 220 is also included. The dimming element 220 is located between the light source 210 and the first light-transmitting element 230 and is accommodated in the light source chamber 200. Along the direction from the light source 210 to the first light-transmitting element 230, the radial cross-sectional area of ​​the dimming element 220 gradually increases. The dimming element 220 can be used to distribute the light to the light source 210 so that the ultraviolet light emitted by the light source 210 can be irradiated into the fluid tube 1 with maximum efficiency, and the dimming element 220 can make the light output of the light source 210 highly uniform and well-calibrated. As an example, the dimming element 220 in this embodiment can be set as a truncated cone-shaped cup body. Setting a truncated cone-shaped cup body can make the range of light-emitting angles of the lamp beads wide and the lamp bead light distribution schemes diversified.

[0052] In order to solve the problem that the inlet and outlet directions of the fluid to be sterilized in the prior art cannot be diversified, the fluid tube 1 in the embodiment of the present application is provided with one or more sterilizing fluid inlets 130 along the axial and / or circumferential direction; and the fluid tube 1 is provided with one or more sterilizing fluid outlets 140 along the axial and / or circumferential direction; different sterilizing fluid inlets can flow into the same type of fluid or different types of fluid. For example, in the present application, a sterilizing fluid inlet 130 and a sterilizing fluid outlet 140 can be provided in the circumferential direction of the fluid tube 1; wherein the sterilizing fluid inlet 130 is used to flow in the fluid to be sterilized, and the sterilizing fluid outlet 140 is used to flow out the sterilized fluid. It is also possible to provide a sterilizing fluid inlet 130 in the circumferential direction of the fluid tube 1 and a sterilizing fluid outlet 140 in the axial direction of the fluid tube 1; wherein the sterilizing fluid inlet 130 is used to flow in the fluid to be sterilized, and the sterilizing fluid outlet 140 is used to flow out the sterilized fluid, as well as impurities and dirt. Alternatively, two sterilizing fluid inlets 130 and one sterilizing fluid outlet 140 may be provided circumferentially on the fluid tube 1, as well as one sterilizing fluid outlet 140 axially on the fluid tube 1. The circumferential fluid inlets allow the inflow of the fluid to be sterilized, the circumferential fluid outlets allow the outflow of the sterilized fluid, and the axial fluid outlets allow the outflow of impurities and dirt. In the above embodiment, the bottom of the sterilizing fluid outlet 140 is lower than the bottom of the inner wall of the fluid tube 1 in both the axial and radial directions.

[0053] Specifically, the heat dissipation chamber 3 is provided with one or more heat dissipation fluid inlets 310, and one or more heat dissipation fluid outlets 320. The heat dissipation fluid inlet 310 and the heat dissipation fluid outlet 320 can be circumferentially arranged on the shell 2, or can be axially arranged on the shell 2. The heat dissipation fluid in this embodiment can be a fluid to be sterilized or a fluid not to be sterilized. If the heat dissipation fluid is a fluid to be sterilized, the heat dissipation fluid outlet 320 is connected to the sterilization fluid inlet 130 through a connecting pipe. A connecting pipe connects a heat dissipation fluid outlet 320 and a sterilization fluid inlet 130. The fluid to be sterilized is used to dissipate heat from the light source 210 first and then sterilize the fluid to be sterilized. This can not only reduce the temperature of the light source 210, but also sterilize the fluid to be sterilized at the same time. As an example, the heat dissipation chamber 3 in this embodiment is connected with a heat dissipation fluid inlet 310 and a heat dissipation fluid outlet 320. More specifically, one or more guide plates 330 are provided in the heat dissipation chamber 3. The positions of the one or more guide plates 330 are used to change the path of the heat dissipation fluid in the second flow path, thereby increasing the contact time between the heat dissipation fluid and the light source 210, improving the heat dissipation efficiency, and reducing the temperature of the light source 210 more quickly.

[0054] Specifically, a second light-transmitting member 4 is provided, positioned adjacent to the second end 120 of the fluid tube 1, and transmits outwardly the ultraviolet light incident upon the second end 120. The second light-transmitting member 4 comprises one of the following: an optical lens, a light-transmitting film, or a device constructed of a light-transmitting material. Because direct exposure to ultraviolet light can be harmful to the human body, this embodiment further includes a light shielding plate 7. The radial cross-sectional area of ​​the light shielding plate 7 is greater than that of the second light-transmitting member 4, ensuring that the light shielding plate 7 completely shields the ultraviolet light transmitted by the second light-transmitting member 4. Furthermore, the ultraviolet light transmitted outwardly by the second light-transmitting member 4 is controlled by the light shielding plate 7.

[0055] In order to be able to detect whether the illuminance and wavelength of the ultraviolet light irradiated to the second end 120 can achieve the purpose of sterilization, it is necessary to detect the ultraviolet light to determine whether it meets the standards. Therefore, the embodiment of the present application also sets a detection plate 6 between the second light-transmitting member 4 and the light-shielding plate 7, and opens a detection port 600 on the detection plate 6. The radial cross-sectional area of ​​the detection port 600 is smaller than the cross-sectional area of ​​the second light-transmitting member 4, thereby ensuring that the ultraviolet light detector can detect the illuminance and / or wavelength of the ultraviolet light transmitted from the second light-transmitting member 4 through the detection port 600. As an example, in the embodiment of the present application, an ultraviolet light detector can be selected to detect the illuminance and / or wavelength of the ultraviolet light. The ultraviolet light detector is placed at the location of the detection port 600, and the detection results of the ultraviolet light are obtained by reading the numerical values ​​and data on the ultraviolet light detector or directly observing the graphics on the ultraviolet light detector. More specifically, the system further includes a detection chamber 8, which includes a mounting base 810 for a UV detector. The UV detector in the embodiment of the present application is fixedly mounted in the mounting base 810. A sealing plate 5 is further provided between the second light-transmitting member 4 and the detection plate 6. The sealing plate 5 seals the second light-transmitting member 4 and the fluid tube 1 to prevent the fluid in the fluid tube 1 from leaking out of the edge of the second light-transmitting member 4.

[0056] Specifically, the device also includes an exhaust mechanism, which is composed of an exhaust valve 10 fixedly connected to the fluid pipe 1 and one or more exhaust holes 9 provided on the fluid pipe 1. The exhaust valve 10 exhausts the gas in the fluid pipe 1 through the exhaust holes 9 to the outside of the fluid pipe 1, ensuring that the fluid to be sterilized in the fluid pipe 1 is exposed to ultraviolet light for a sufficiently stable period of time.

[0057] Specifically, it also includes a power supply box 11, which is fixedly connected to the fluid pipe 1, for example, welded to the fluid pipe 1; the power supply box 11 can provide power to the light source 210 and the ultraviolet detector.

[0058] like Figure 2As shown, in an example of this embodiment, the heat dissipation cover 360 is fixed to the housing 2 by bolts, and then the first light-transmitting member 230 is fixed between the housing 2 and the first end portion 110 of the fluid tube 1, and the housing 2 is fixed to the fluid tube 1 by bolts. The heat dissipation chamber 3 and the light source chamber 200 are both located in the housing 2. A line channel 340 and a breathing hole 350 are also provided on the housing, wherein the line channel 340 is used to place the line that provides power to the lamp beads, and a waterproof connector 370 is connected to the outside of the line channel 340 to prevent water or fluid from entering the light source chamber 200. A breathing valve 380 is connected to the outside of the breathing hole 350, and the air pressure in the light source chamber 200 is balanced by the breathing valve 380 and the breathing hole 350.

[0059] The second light-transmitting member 4, sealing plate 5, detection plate 6, light shielding plate 7, and detection chamber 8 are then sequentially fixed to the second end 120 of the fluid tube 1. The second light-transmitting member 4 is directly placed on the second end 120 of the fluid tube 1, with the sealing plate 5 pressing against the second light-transmitting member 4. Bolts are passed through the detection plate 6 and the sealing plate 5, and then fixed to the second end 120 of the fluid tube 1. The second light-transmitting member 4 is provided with a sterilizing fluid outlet 140 through-hole, and the detection plate 6 is provided with a first sterilizing fluid outlet conduit 610, which is located at the same height as the sterilizing fluid outlet 140 through-hole. The light shielding plate 7 is provided with a through-hole that cooperates with the first sterilizing fluid outlet conduit 610, through which the light shielding plate 7 and the detection plate 6 are connected. A second sterilizing fluid outlet pipe 820 is provided on the detection chamber 8 to cooperate with the first sterilizing fluid outlet pipe 610. The radius of the first sterilizing fluid outlet pipe 610 is smaller than that of the second sterilizing fluid outlet pipe 820. The detection chamber 8 is connected to the detection plate 6 through the second sterilizing fluid outlet pipe 820.

[0060] By supplying power to the light source 210, the light source 210 emits ultraviolet light. The fluid to be sterilized is selected as the heat dissipation fluid and introduced into the heat dissipation chamber 3 through the heat dissipation fluid inlet 310. The heat dissipation chamber 3 is provided with one or more guide plates 330, allowing the sterilized fluid to dissipate heat from the light source 210 along the heat dissipation path formed by the guide plates 330. In the embodiment of the present application, the heat dissipation fluid inlet 310 and the heat dissipation fluid outlet 320 may be arranged axially. The sterilized fluid flowing out of the heat dissipation fluid outlet 320 is then introduced into the fluid pipe 1 through the sterilizing fluid inlet 130 via a connecting pipe. At this point, the sterilized fluid in the fluid pipe 1 flows through the first flow path 100. The ultraviolet light emitted by the light source 210 is transmitted through the first light-transmitting member 230 and then irradiates the sterilized fluid in the fluid pipe 1 through the first end 110 of the fluid pipe 1, thereby sterilizing the fluid. Since the sterilizing fluid inlet 130 continuously flows into the sterilizing fluid, the sterilized fluid flows directly out of the sterilizing fluid outlet 140. If the fluid to be sterilized needs to be sterilized multiple times, multiple devices can be used in series, and a connecting tube can be used to connect the sterilization fluid outlet 140 to the sterilization fluid inlet 130 of the next device to sterilize the fluid; or the fluid flowing out of the sterilization fluid outlet 140 can be connected to the sterilization fluid inlet 130 through a connecting tube and continued to be introduced into the fluid pipe 1 to circulate and sterilize the fluid. If there is gas in the fluid pipe 1, the gas in the fluid pipe 1 is discharged from the exhaust hole 9 to the outside of the fluid pipe 1 through the exhaust valve 10, so that the time for the fluid to be sterilized in the fluid pipe 1 to be irradiated with ultraviolet light is sufficiently stable. When the fluid to be sterilized flows in the fluid pipe 1 according to the first flow path 100, one or more layers of reflective layer 150 can be set on the inner wall of the fluid pipe 1 to improve the sterilization efficiency of the fluid in the fluid pipe 1 through reflection, refraction, etc. of the reflective layer 150.

[0061] During the sterilization process, in order to detect whether the illuminance and wavelength of the ultraviolet light irradiated to the second end 120 can achieve the purpose of sterilization, it is necessary to detect the ultraviolet light to determine whether it meets the standards. Therefore, the embodiment of the present application also sets a detection plate 6 between the second light-transmitting member 4 and the light-shielding plate 7, and opens a detection port 600 on the detection plate 6. The radial cross-sectional area of ​​the detection port 600 is smaller than the cross-sectional area of ​​the second light-transmitting member 4, thereby ensuring that the ultraviolet light detector can detect the ultraviolet light transmitted from the second light-transmitting member 4 from the detection port 600. As an example, in the embodiment of the present application, an ultraviolet light detector can be selected to detect the ultraviolet light illuminance and / or wavelength. The ultraviolet light detector is fixed on the fixing seat 810 in the detection chamber 8, and the detection result of the ultraviolet light is obtained by reading the numerical value, data on the ultraviolet light detector or directly observing the graph on the ultraviolet light detector.

[0062] In this embodiment, a bracket 12 is also fixedly connected to the fluid pipe 1, for example, one or more brackets 12 are welded, and the device can be installed and fixed at different angles and directions through the bracket 12, such as horizontal installation and fixation, vertical installation and fixation, oblique installation and fixation, etc.

[0063] like Figure 7 and Figure 8 As shown, in another embodiment, the housing 2 includes a water inlet cover 20 and a light source housing 21; the water inlet cover 20 and the light source housing 21 are fixed in position by bolts, wherein the heat dissipation chamber 3 is located in the water inlet cover 20, and the light source chamber 200 is located in the light source housing 21. The first light-transmitting member 230 is then fixed in position between the light source housing 21 and the first end 110 of the fluid tube 1, and the light source housing 2 and the fluid tube 1 are fixed in position by bolts. A line channel 340 and a breathing hole 350 are also provided on the light source housing 21, wherein the line channel 340 is used to place the line that provides power to the lamp beads, and a waterproof connector 370 is connected to the outside of the line channel 340 to prevent water or fluid from entering the light source chamber 200. A breathing valve 380 is connected to the outside of the breathing hole 350, and the air pressure in the light source chamber 200 is balanced by the breathing valve 380 and the breathing hole 350.

[0064] The second light-transmitting member 4, sealing plate 5, detection plate 6, light shielding plate 7, and detection chamber 8 are then sequentially fixed to the second end 120 of the fluid tube 1. The second light-transmitting member 4 is directly placed on the second end 120 of the fluid tube 1, with the sealing plate 5 pressing against the second light-transmitting member 4. Bolts are passed through the detection plate 6 and the sealing plate 5, and then fixed to the second end 120 of the fluid tube 1. The second light-transmitting member 4 is provided with a sterilizing fluid outlet 140 through-hole, and the detection plate 6 is provided with a first sterilizing fluid outlet conduit 610, which is located at the same height as the sterilizing fluid outlet 140 through-hole. The light shielding plate 7 is provided with a through-hole that cooperates with the first sterilizing fluid outlet conduit 610, through which the light shielding plate 7 and the detection plate 6 are connected. A second sterilizing fluid outlet pipe 820 is provided on the detection chamber 8 to cooperate with the first sterilizing fluid outlet pipe 610. The radius of the first sterilizing fluid outlet pipe 610 is smaller than that of the second sterilizing fluid outlet pipe 820. The detection chamber 8 is connected to the detection plate 6 through the second sterilizing fluid outlet pipe 820.

[0065] By providing power to the light source 210, the light source 210 emits ultraviolet light. The fluid to be sterilized is selected as the heat dissipation fluid and introduced into the heat dissipation chamber 3 through the heat dissipation fluid inlet 310. The heat dissipation chamber 3 is provided with one or more guide plates 330, allowing the sterilized fluid to dissipate heat from the light source 210 along the heat dissipation path formed by the guide plates 330. In the embodiment of the present application, the heat dissipation fluid inlet 310 and the heat dissipation fluid outlet 320 may be arranged circumferentially. The sterilized fluid flowing out of the heat dissipation fluid outlet 320 is then introduced into the fluid pipe 1 through the sterilizing fluid inlet 130 via a connecting pipe. At this point, the sterilized fluid in the fluid pipe 1 flows through the first flow path 100. The ultraviolet light emitted by the light source 210 is transmitted through the first light-transmitting member 230 and then irradiates the sterilized fluid in the fluid pipe 1 through the first end 110 of the fluid pipe 1, thereby sterilizing the fluid. Since the sterilizing fluid inlet 130 continuously flows into the sterilizing fluid, the sterilized fluid flows directly out of the sterilizing fluid outlet 140. If the fluid to be sterilized needs to be sterilized multiple times, multiple devices can be used in series, and a connecting tube can be used to connect the sterilization fluid outlet 140 to the sterilization fluid inlet 130 of the next device to sterilize the fluid; or the fluid flowing out of the sterilization fluid outlet 140 can be connected to the sterilization fluid inlet 130 through a connecting tube and continued to be introduced into the fluid pipe 1 to circulate and sterilize the fluid. If there is gas in the fluid pipe 1, the gas in the fluid pipe 1 is discharged from the exhaust hole 9 to the outside of the fluid pipe 1 through the exhaust valve 10, so that the time for the fluid to be sterilized in the fluid pipe 1 to be irradiated with ultraviolet light is sufficiently stable. When the fluid to be sterilized flows in the fluid pipe 1 according to the first flow path 100, one or more layers of reflective layer 150 can be provided on the inner wall of the fluid pipe 1 to improve the sterilization efficiency of the fluid in the fluid pipe 1 through reflection, refraction, etc. of the reflective layer 150.

[0066] During the sterilization process, in order to detect whether the illuminance and wavelength of the ultraviolet light irradiated to the second end 120 can achieve the purpose of sterilization, it is necessary to detect the ultraviolet light to determine whether it meets the standards. Therefore, the embodiment of the present application also sets a detection plate 6 between the second light-transmitting member 4 and the light-shielding plate 7, and opens a detection port 600 on the detection plate 6. The radial cross-sectional area of ​​the detection port 600 is smaller than the cross-sectional area of ​​the second light-transmitting member 4, thereby ensuring that the ultraviolet light detector can detect the ultraviolet light transmitted from the second light-transmitting member 4 from the detection port 600. As an example, in the embodiment of the present application, an ultraviolet light detector can be selected to detect the ultraviolet light illuminance and / or wavelength. The ultraviolet light detector is fixed on the fixing seat 810 in the detection chamber 8, and the detection result of the ultraviolet light is obtained by reading the numerical value, data on the ultraviolet light detector or directly observing the graph on the ultraviolet light detector.

[0067] In this embodiment, a bracket 12 is also fixedly connected to the fluid pipe 1, for example, one or more brackets 12 are welded, and the device can be installed and fixed at different angles and directions through the bracket 12, such as horizontal installation and fixation, vertical installation and fixation, oblique installation and fixation, etc.

[0068] In summary, the present invention provides an over-flow sterilization device, comprising a fluid tube having a first end and a second end extending axially, the fluid tube further being provided with a first flow path from the first end to the second end for sterilizing the fluid to be treated, the fluid to be sterilized flowing in the first flow path; a light source being provided near the first end of the fluid tube, the light source irradiating ultraviolet light from the first end to the first flow path; a heat dissipation chamber being provided near the light source, the heat dissipation chamber being provided with a second flow path for reducing the temperature of the light source, the heat dissipation fluid flowing in the second flow path. The present invention provides a first flow path in the fluid tube to ensure that the fluid to be sterilized can flow stably in the fluid tube; at the same time, the light source is housed in the light source chamber, and ultraviolet light is provided by the light source. The sterilization characteristics of ultraviolet light can be used to sterilize the fluid to be sterilized in the fluid tube; and a second flow path for reducing the temperature of the light source is provided in the heat dissipation chamber, the heat of the light source is taken away by the heat dissipation fluid flowing in the second flow path, thereby reducing the temperature of the light source.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A flow-through sterilization device, characterized in that: Includes: a fluid tube having a first end and a second end extending in an axial direction, wherein the fluid tube is provided with a first flow path from the first end to the second end, and the fluid to be sterilized flows in the first flow path; a light source disposed near the first end of the fluid tube, the light source irradiating ultraviolet light from the first end toward the first flow path; a heat dissipation chamber, disposed near the light source, the heat dissipation chamber being provided with a second flow path, and a heat dissipation fluid flowing in the second flow path; a light source chamber, the light source chamber being located between the fluid pipe and the heat dissipation chamber; the light source being accommodated in the light source chamber; a dimming element, housed in the light source chamber; The dimming element is located between the light source and the first light-transmitting element; along the direction from the light source to the first light-transmitting element, the radial cross-sectional area of ​​the dimming element gradually increases, and the first light-transmitting element is used to transmit the ultraviolet light emitted by the light source to the first flow path; a second light-transmitting member, disposed near the second end of the fluid tube and configured to transmit the ultraviolet light irradiated to the second end of the fluid tube to the outside of the fluid tube; a light shielding plate, the light shielding plate being disposed close to the second light-transmitting member, the radial cross-sectional area of ​​the light shielding plate being larger than that of the second light-transmitting member; The ultraviolet light transmitted outward by the second light-transmitting member is controlled by the light-shielding plate; a detection chamber, wherein a fixing seat for placing an ultraviolet light detector is provided in the detection chamber, and the ultraviolet light detector is capable of detecting the illumination of the ultraviolet light transmitted outward by the second light-transmitting member; A detection plate is located between the second light-transmitting member and the light-shielding plate; a detection port is provided on the detection plate, and the radial cross-sectional area of ​​the detection port is smaller than that of the second light-transmitting member; the ultraviolet light detector detects the illumination of the ultraviolet light transmitted outward from the second light-transmitting member through the detection port.

2. The overflow sterilization device according to claim 1, characterized in that: The first light-transmitting member is located between the light source chamber and the first end portion of the fluid tube.

3. The overflow sterilization device according to claim 1, characterized in that: The fluid tube is provided with one or more sterilization fluid inlets along the axial direction and / or the circumferential direction; and the fluid tube is provided with one or more sterilization fluid outlets along the axial direction and / or the circumferential direction.

4. The overflow sterilization device according to claim 1, characterized in that: It also includes a shell; the shell is provided with a heat dissipation chamber and a light source chamber; The shell is connected to the first end of the fluid pipe; the shell is provided with one or more heat dissipation fluid inlets and one or more heat dissipation fluid outlets.

5. The overflow sterilization device according to claim 1 or 4, characterized in that: One or more guide plates are further provided in the heat dissipation chamber; the flow path of the heat dissipation fluid in the second flow path changes with the position of the one or more guide plates.

6. The overflow sterilization device according to claim 1, characterized in that: The inner wall of the fluid tube is provided with one or more reflective layers; The reflective layer is made of polytetrafluoroethylene and / or the reflective layer is made of reflective glass.

7. The overflow sterilization device according to claim 1, characterized in that: A sealing plate is also included, and the sealing plate is located between the second light-transmitting member and the detection plate.

8. The overflow sterilization device according to claim 1, characterized in that: It also includes an exhaust mechanism; the exhaust valve fixedly connected to the fluid pipe and one or more exhaust holes opened on the fluid pipe constitute the exhaust mechanism.

9. The overflow sterilization device according to claim 1, characterized in that: The invention also includes a power supply box for providing power to the light source, and the power supply box is connected to the side wall of the fluid pipe.

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