TWM603021U - Sterilization module - Google Patents

Abstract

The model discloses a sterilization module, which comprises: a carrier formed as a tortuous flow channel inside, and the carrier is respectively provided with a fluid inlet and a fluid outlet at the two ends of the tortuous flow channel; The fluid in the tortuous flow channel is irradiated with an ultraviolet light source for sterilization. The new type of technical solution mainly uses ultraviolet light source to irradiate and sterilize the bacteria-carrying fluid in the tortuous flow channel. The tortuous design of the tortuous flow channel extends the time for the fluid to pass through the flow channel compared with the traditional single space. The irradiation time of the ultraviolet light source on the fluid achieves the purpose of deepening the killing of bacteria and improving the utilization rate of ultraviolet light. Moreover, the tortuous flow channel is designed inside the original carrier space, and no additional space is required to achieve double sterilization. effect.

Description

Sterilization module

The model relates to a sterilization module, in particular to a sterilization module that uses an ultraviolet light source to achieve a sterilization effect.

Deep ultraviolet light refers to light with a wavelength of 200nm-300nm, also known as UVC. Deep ultraviolet rays can penetrate the cell membrane and cell nucleus of microorganisms, destroy DNA, RNA and other genetic materials, and have the effect of killing microorganisms. Deep ultraviolet can kill bacterial propagules, spores, viruses, fungi, etc. As a broad-spectrum efficient sterilization method, it is widely used in water purification plants, hospitals, factories, etc.

The traditional artificial deep-ultraviolet light source is a mercury lamp tube. Because it contains heavy metal mercury, it has been listed as a product that needs to be phased out by the Minamata Convention. As a new type of artificial deep-ultraviolet light source, UVC-LED has become an ideal choice for replacing traditional mercury lamps with its advantages of environmental protection, concentrated spectrum, flexible use, and long life. The current technology discloses an over-flow water sterilization and disinfection device and a water purification device, and the Chinese mainland patent 201721198600.9 discloses a sterilization device and a liquid sterilization device. The above two patents both use UVC-LED light sources for water flowing through the pipeline. UV sterilization.

However, the above scheme has the following disadvantages: 1. The sterilization rate is unstable. The sterilization rate depends on the UV dose received by the microorganisms. The trajectory of microorganisms in the water body is determined by the water flow. The more regular the water flow, the more stable the flow rate, the more stable the ultraviolet dose received by the microorganisms, and the more stable the sterilization rate. In the existing scheme, the water flow in the sterilizer is turbulent, and the water flow is irregular. As a result, the ultraviolet dose received by microorganisms in the water body is unstable, random, and the sterilization rate is unstable. 2. Low utilization rate of deep ultraviolet light. The light utilization rate is the ratio of the deep ultraviolet light power that plays a bactericidal effect to the total incident light power. The higher the uniformity of illumination, the better the collimation of light, and the higher the utilization rate of light. The UVC-LED light source part of the existing sterilizer only relies on the primary optical processing and light source arrangement of the UVC-LED package itself, which cannot meet the requirements of light uniformity and collimation at the same time, and the light utilization rate is low. 3. The UVC-LED irradiation time is insufficient, and the sterilization effect is often not achieved. In the existing solutions, the UVC-LED packaging device is often set in a certain amount of space, and in this amount of space, when the target to be sterilized passes through the quantitative space, due to the limitation of the space length, the UVC-LED often If the irradiation time is insufficient, the target has already passed the quantitative space, resulting in insufficient sterilization.

In view of the above existing technical problems, this new model proposes a sterilization module with better sterilization effect, using ultraviolet light as a sterilization light source, high ultraviolet light utilization, and without additional space, can achieve a double sterilization effect .

In this regard, the technical solution adopted by the present invention is to provide a sterilization module, which includes: The inside of the carrier is formed as a tortuous flow channel, the carrier is respectively provided with a fluid inlet and a fluid outlet at both ends of the tortuous flow channel; and An ultraviolet light source for irradiating and sterilizing the fluid in the tortuous flow channel.

The new type of technical solution mainly uses ultraviolet light source to irradiate and sterilize the bacteria-carrying fluid in the tortuous flow channel. The tortuous design of the tortuous flow channel extends the time for the fluid to pass through the flow channel compared with the traditional single space. The irradiation time of the ultraviolet light source on the fluid achieves the purpose of deepening the killing of bacteria and improving the utilization rate of ultraviolet light. Moreover, the tortuous flow channel is designed inside the original carrier space, and no additional space is required to achieve double sterilization. effect.

As an embodiment, a porous barrier device is provided inside the tortuous flow channel, and the porous barrier device has pores through which fluid can pass.

As another embodiment, the porous barrier device is a sponge.

As another embodiment, the carrier is provided with an installation port through which the porous barrier device can enter and exit, and a cover plate is detachably connected to the installation port.

As another embodiment, a protective housing capable of isolating ultraviolet light is provided on the outside of the carrier, and the ultraviolet light source is provided inside the protective housing.

As another embodiment, the ultraviolet light source has a transparent cover, and the transparent cover is a flat lens, a spherical lens, an aspheric lens, or a combined lens group of at least two.

As another embodiment, the carrier is a tortuous transparent glass tube.

As another embodiment, the carrier includes a plurality of transparent glass straight tubes, and the ends of the plurality of transparent glass straight tubes are connected in series to form a linear zigzag shape through elbow tubes.

As another embodiment, the carrier is a transparent glass box, the inside of the transparent glass box is partitioned into a plurality of compartments by a plurality of partitions, and a passage through which fluid can pass is left between each of the compartments, The aisles are distributed in a staggered pair by pair.

As another embodiment, a plurality of the partitions are distributed at certain intervals along the height direction of the transparent glass box, and the aisles are alternately arranged at opposite ends of the partitions and the transparent glass box. Between opposite sides of the inside.

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the new model and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation , It is constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or Removable connection or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood under specific circumstances.

The first embodiment:

Fig. 1 is a cross-sectional view of the overall structure of the sterilization module provided by the first embodiment.

As shown in Fig. 1, the sterilization module provided in this embodiment includes: a carrier 1 formed as a tortuous flow channel 10 and an ultraviolet light source 2. The carrier 1 is provided with a fluid inlet 101 at both ends of the tortuous flow channel 10. And a fluid outlet 102. The bacteria-carrying fluid enters the tortuous flow passage 10 from the fluid inlet 101, passes through the tortuous flow passage 10, and then flows out through the fluid outlet 102. In this process, the ultraviolet light source 2 emits ultraviolet light to the tortuous flow passage The bacteria-carrying fluid in 10 is irradiated and sterilized to achieve the purpose of killing bacteria. The fluid refers to liquid or gas.

The technical solution of this embodiment mainly adopts the ultraviolet light source 2 to irradiate and sterilize the bacteria-carrying fluid in the tortuous flow channel 10. The tortuous flow channel 10 is designed to be zigzag, which lengthens the fluid flow channel compared to the traditional single space. It can prolong the irradiation time of the ultraviolet light source 2 to the fluid in the flow channel, achieve the purpose of deepening the killing of bacteria, and improve the utilization rate of ultraviolet light. Moreover, the tortuous flow channel 10 is designed in the internal space of the original carrier 1 without additional It can achieve double sterilization effect.

Preferably, the ultraviolet light source 2 uses deep ultraviolet (UVC-LED) as the light source. The deep ultraviolet is light with a wavelength between 200 nanometers and 350 nanometers in ultraviolet light, which can be used for air sterilization in water purification plants, hospitals, and factory clean rooms. , Processing formaldehyde and other fields. Specifically, the ultraviolet light source 2 may include a substrate 21 and one or more wafers 22 arranged on one side of the substrate. One wafer 22 is shown in the figure, and multiple wafers may be arranged to enhance the sterilization effect. The wafer 22 emits ultraviolet light to the outside, and the side of the substrate 21 without the wafer is used as a mounting surface, which can be mounted on any plane or curved surface, and the shape of the mounting surface of the substrate 21 can be changed by matching the curved surface. In this embodiment, the carrier 1 is provided with a protective housing 3 that can isolate ultraviolet light, and the ultraviolet light source 2 is provided inside the protective housing 3 and outside the carrier 1. The substrate mounting surface of the ultraviolet light source 2 can be directly fixed on the inner surface of the protective housing 3. The number of ultraviolet light sources 2 can be adjusted according to the size of the carrier 1 and the protective housing 3, and can be arranged on one side or opposite sides of the fluid channel, as long as it can fully irradiate the fluid in the fluid channel and meet the purpose of sufficient sterilization. can.

Preferably, the ultraviolet light source 2 has a transparent cover (not shown in the figure), and the transparent cover is arranged outside the wafer 22. The transparent cover can be a transparent quartz cover, which is a flat lens, a spherical lens, and an aspheric surface. The lens or the combined lens group of at least two kinds, and the setting of the quartz cover can increase the light output rate of the ultraviolet light.

Further, the carrier 1 is made of a material that can be penetrated by an ultraviolet light source, and can be a transparent glass tube directly processed into a zigzag shape. The zigzag shape includes, but is not limited to: a spiral shape, a spiral shape, or a back and forth winding as shown in FIG. The shape should be understood as having at least one bend or turn, or bend like a spiral or spiral as a whole, or have both bends and turns.

Preferably, the carrier 1 in this embodiment is designed to be composed of a plurality of sections of transparent glass straight tubes 11 and a plurality of elbow tubes 12 with matching numbers. The plurality of sections of transparent glass straight tubes 11 are arranged two by two in a certain direction. The two ends of the transparent glass straight tube 11 are aligned, and the bent tube 12 can be made of plastic, metal, or other materials that are easier to be processed into a bent shape, which simplifies the glass bending process. The elbow 12 in this embodiment includes a number of U-shaped tubes 12a and two L-shaped tubes 12b. The two L-shaped tubes 12b are respectively connected to the two ends of the two outermost straight transparent glass tubes 11 on different sides. One end port of the shaped tube 12b is connected to the port of the transparent glass straight tube 11 through the connecting sleeve 13, and the other end ports of the two L-shaped tubes 12b respectively constitute the fluid inlet 101 and the fluid outlet 102 of the bent flow channel, as shown in Figure 1. As shown, the directions of the fluid inlet 101 and the fluid outlet 102 are opposite, the fluid inlet 101 faces upward, the fluid outlet 102 faces downward, the fluid inlet 101 is at the top, and the fluid outlet 102 is at the bottom.

Similarly, a number of U-shaped tubes 12a are alternately connected to the two ends of the multi-segment transparent glass straight tube 11 in the middle position. The two ends of each U-shaped tube 12a are connected to the corresponding transparent glass straight tube through the connecting sleeve 13 respectively. The port of tube 11 is connected. Wherein, the connecting sleeve 13 may be a socket type connecting sleeve or a threaded connecting sleeve.

In order to further extend the time for the fluid to pass through the tortuous flow channel 10 and to obtain more sterilization time for the ultraviolet light source 2, this embodiment also sets one or more porous barrier devices 4 inside the tortuous flow channel 10. The device 4 has multiple pores through which fluid can pass, such as a sponge or a filter screen. The setting of the sponge or the filter screen forms a certain obstacle to the fluid flow, but the porous design ensures that the fluid can pass through. Therefore, the time for the fluid to pass through the curved channel can be lengthened again. In this way, the UV light source 2 irradiates the fluid. It will be prolonged due to the lengthening of the channel and the arrangement of the porous barrier device to achieve a powerful effect of killing bacteria.

Preferably, the sponge or filter screen can be arranged in the tortuous flow channel 10 close to the connecting sleeve 13. In this way, the sponge or filter screen can be easily replaced by removing the connecting sleeve 13 to prevent the sponge or filter screen from being used for a long time. Afterwards, its multiple pores are blocked by dirt and affect the effect.

The second embodiment:

2 is a cross-sectional view of the overall structure of the sterilization module provided by the second embodiment.

As shown in Figure 2, the sterilization module provided by this embodiment also includes a carrier 1 formed as a tortuous flow channel 10 inside, an ultraviolet light source 2 for irradiating and sterilizing the bacteria-carrying fluid in the tortuous flow channel 10, and A porous obstacle device 4 such as a sponge or a filter screen of the tortuous flow channel 10. The carrier 1 is provided with a fluid inlet 101 and a fluid outlet 102 at the two ends of the tortuous flow channel 10 respectively. A protective housing 3 is provided on the outside of the carrier 1, and the ultraviolet light source 2 is arranged inside the protective housing 3 and located outside the carrier 1. The material of the carrier 1 is transparent glass that can penetrate ultraviolet light. The number of ultraviolet light sources 2 can be There can be one or more. Depending on the irradiation area and sterilization requirements, the ultraviolet light source 2 can be arranged on one side of the carrier 1 or on opposite sides of the carrier 1. The elements and functions involved in the above content can refer to the first embodiment. The difference between this embodiment and the first embodiment is:

The carrier 1 adopts a box structure, such as a rectangular transparent glass box as shown in FIG. 2. A plurality of partitions 14 are arranged inside the transparent glass box to divide the internal space of the transparent glass box into a plurality of small compartments. , There are aisles for fluid to pass between each compartment, and each aisle is distributed in a staggered pair to ensure that fluid can flow through each compartment.

Preferably, the partitions 14 in this embodiment are arranged horizontally, a plurality of partitions 14 are distributed at a certain interval along the height direction of the transparent glass box, and aisles are alternately arranged at the opposite ends of the partitions 14 and Between opposite sides of the transparent glass box. Sponge or filter screen can be set in the aisle, and a mounting hole is reserved at the position of the sponge or filter screen in the transparent glass box for replacing the sponge or filter screen. A cover plate 15 is provided outside the mounting hole. The cover plate can be bolted Or screws, etc. are detachably connected to the outside of the installation port.

The sponge or filter screen can also be arranged along the partition 14 in a strip shape, and the height is smaller than the width of the flow channel between two adjacent partitions 14, as shown in FIG. 3.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. range.

The technologies, shapes, and structural parts not described in detail in the present invention are all known technologies.

1: carrier 10: tortuous runner 101: fluid inlet 102: fluid outlet 11: Transparent glass straight tube 12: Elbow 12a: U-shaped tube 12b: L-shaped tube 13: connecting sleeve 14: partition 2: UV light source 21: substrate 22: chip 3: Protective shell 4: Porous barrier device

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Figure 1 is a cross-sectional view of the overall structure of the sterilization module provided by the first embodiment of the new type.

2 is a cross-sectional view of the overall structure of the sterilization module provided by the second embodiment of the new type.

3 is a cross-sectional view of the overall structure of the sterilization module provided by the third embodiment of the new type.

1: carrier

10: tortuous runner

101: fluid inlet

102: fluid outlet

11: Transparent glass straight tube

12: Elbow

12a: U-shaped tube

12b: L-shaped tube

13: connecting sleeve

2: UV light source

21: substrate

22: chip

3: Protective shell

4: Porous barrier device

Claims (10)

A sterilization module, wherein the sterilization module includes: The inside of the carrier is formed as a tortuous flow channel, the carrier is respectively provided with a fluid inlet and a fluid outlet at both ends of the tortuous flow channel; and An ultraviolet light source for irradiating and sterilizing the fluid in the tortuous flow channel. The sterilization module according to claim 1, wherein a porous barrier device is provided inside the tortuous flow channel, and the porous barrier device has pores through which fluid can pass. The sterilization module according to claim 2, wherein the porous barrier device is a sponge. The sterilization module according to claim 2, wherein the carrier is provided with an installation port through which the porous barrier device can enter and exit, and a cover plate is detachably connected to the installation port. The sterilization module according to claim 1, wherein a protective housing capable of isolating ultraviolet light is provided on the outside of the carrier, and the ultraviolet light source is provided inside the protective housing. The sterilization module according to claim 1, wherein the ultraviolet light source has a transparent cover, and the transparent cover is a flat lens, a spherical lens, an aspheric lens, or a combined lens group of at least two. The sterilization module according to any one of claims 1 to 6, wherein the carrier is a tortuous transparent glass tube. The sterilization module according to any one of claims 1 to 6, wherein the carrier includes a plurality of transparent glass straight tubes, and the ends of the plurality of transparent glass straight tubes are connected in series to form a linear zigzag shape by elbow tubes. The sterilization module according to any one of claims 1 to 6, wherein the carrier is a transparent glass box, and the inside of the transparent glass box is divided into a plurality of compartments by a plurality of partitions, each of the partitions There are aisles through which fluid can pass between the spaces, and the aisles are distributed in a staggered manner. The sterilization module according to claim 9, wherein a plurality of the partitions are distributed at a certain interval along the height direction of the transparent glass box, and the aisles are alternately arranged at opposite ends of the partitions Between the two opposite sides in the transparent glass box.

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