A dynamic water sterilization device using a light-guiding structure

Abstract

The present invention provides a dynamic water sterilization device using a light-guiding structure, including a housing and a deep ultraviolet sterilization module, wherein the housing is a conical cylindrical structure, having a water inlet located at the tip of the cone, a mounting port located at the bottom of the cone, and a lateral water outlet near the bottom of the cone; the deep ultraviolet sterilization module is sealed and assembled on the mounting port of the housing, and the deep ultraviolet sterilization module has a deep ultraviolet light source and a conical light guide rod corresponding to the deep ultraviolet light source, the conical light guide rod extends into the conical cavity of the housing, and is at a certain distance from the inner wall of the conical cavity, thereby enclosing a water-passing cavity with an inverted V-shaped cross section. The device has the characteristics of simple and compact structure, convenient and flexible application, and excellent sterilization effect, and can well replace the mercury lamp to be placed in the sterilization cavity for use, effectively avoiding a series of shortcomings of the mercury lamp light source.

Description

Technical Field

[0001] The invention relates to the field of dynamic water sterilization and disinfection, and in particular to a dynamic water sterilization device with simple and compact structure, convenient and flexible application, and excellent sterilization effect. Background Art

[0002] Mercury lamps, as a product with relatively mature technology, can be used for the sterilization and disinfection of dynamic water. They are built into the dynamic water sterilization cavity as a deep ultraviolet radiation source, and the dynamic water is sterilized and disinfected by emitting deep ultraviolet light to irradiate the dynamic water. First of all, the use of mercury lamps has many inconveniences. They have a long preheating time and a short lifespan. The design of the internal hollow structure makes it difficult to transport and use. The large volume also makes the application inflexible and changeable, which limits the transformation and improvement of the external structure related to dynamic water sterilization. Secondly, with the increasing environmental protection requirements of today's society, countries around the world are gradually reducing the use and emission of mercury. It can be seen that mercury lamps will gradually be abandoned and replaced by other new environmentally friendly products. In the application of dynamic water sterilization and disinfection, corresponding adjustments need to be made step by step to find new ways to apply to the sterilization and disinfection of dynamic water. Summary of the invention

[0003] The invention relates to the field of dynamic water sterilization, and in particular to a dynamic water sterilization and disinfection device with simple and compact structure, convenient and flexible application, and excellent sterilization effect.

[0004] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0005] A dynamic water sterilization device using a light-guiding structure comprises a shell and a deep ultraviolet sterilization module, wherein the shell is a conical cylindrical structure, having a water inlet located at the tip of the cone, a mounting port located at the bottom of the cone, and a lateral water outlet near the bottom of the cone; the deep ultraviolet sterilization module is sealingly assembled on the mounting port of the shell, and the deep ultraviolet sterilization module comprises a deep ultraviolet light source and a conical light-guiding rod corresponding to the deep ultraviolet light source, the conical light-guiding rod extends into the conical cavity of the shell, and is at a certain distance from the inner wall of the conical cavity, thereby enclosing a water-passing cavity with an inverted V-shaped cross-section.

[0006] Furthermore, the tapered light guide rod is made of quartz glass and has a taper of 1:3.4.

[0007] Furthermore, the taper of the conical cavity of the shell is 1:2.8.

[0008] Furthermore, a reflective layer is provided on the inner wall of the conical cavity of the shell.

[0009] Furthermore, the central axis of the tapered cavity of the housing coincides with the central axis of the tapered light guide rod.

[0010] Furthermore, air bubbles are formed in the tapered light guide rod.

[0011] Furthermore, the air bubbles are spherical or ellipsoidal in structure, and their density is not less than 3 / cm 3 .

[0012] Furthermore, the deep ultraviolet sterilization module includes a light source fixing seat, a light guide rod fixing seat, the ultraviolet light source and the conical light guide rod, the conical light guide rod is fixed on the light guide rod fixing seat, the light guide rod fixing seat is sealingly assembled on the mounting port of the outer shell, the light source fixing seat is fixed on the light guide rod fixing seat, and the deep ultraviolet light source is arranged on the light source fixing seat, and its light outlet corresponds to the bottom surface of the conical light guide rod.

[0013] Furthermore, the deep ultraviolet light source includes a deep ultraviolet LED, a reflective cup and a heat sink. The ultraviolet LED is encapsulated in the center of the bottom of the reflective cup. The light outlet of the reflective cup serves as the light outlet of the deep ultraviolet light source and corresponds to the bottom surface of the conical light guide rod. The heat sink is abutted against the reflective cup and is fastened to the light source fixing seat through fasteners (such as screws).

[0014] Furthermore, a light-transmitting glass sheet is provided between the deep ultraviolet light source and the tapered light guide rod.

[0015] The technical solution provided by the present invention has the following beneficial effects:

[0016] The inverted V-shaped water flow cavity structure gradually increases the flow cross-sectional area from the water inlet to the water outlet. The dynamic water flows in from the water inlet and can be evenly diffused in the inverted V-shaped water flow cavity, effectively reducing the water flow speed; at the same time, the ultraviolet light emitted by the deep ultraviolet light source of the deep ultraviolet sterilization module can be transmitted to the water flow cavity through the conical light guide rod to irradiate and sterilize the dynamic water in the entire water flow cavity; the dynamic water is irradiated with deep ultraviolet light for a longer time, which improves the sterilization effect. It can well replace the mercury lamp and be placed in the sterilization cavity for use, effectively avoiding a series of shortcomings of the mercury lamp light source. It has the characteristics of simple and compact structure, convenient and flexible application, and excellent sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of the sterilization device in the embodiment;

[0018] Figure 2 The figure shows a cross-sectional view of the sterilization device in the embodiment in a disassembled state;

[0019] Figure 3 The figure shows a cross-sectional view of the sterilization device in the embodiment in the assembled state;

[0020] Figure 4The figure is a schematic structural diagram of the light guide rod fixing seat in the embodiment;

[0021] Figure 5 The figure shows a cross-sectional view of the light guide rod fixing seat in the embodiment;

[0022] Figure 6 The figure is a schematic diagram of the structure of the light source fixing seat in the embodiment;

[0023] Figure 7 FIG. 1 is a schematic diagram of the structure of the radiator in the embodiment. DETAILED DESCRIPTION

[0024] To further illustrate the various embodiments, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0026] Reference Figures 1 to 7 As shown, the present embodiment provides a dynamic water sterilization device using a light-guiding structure, comprising a housing 10 and a deep ultraviolet sterilization module, wherein the housing 10 is a conical cylindrical structure, having a water inlet 11 at the tip of the cone, a mounting port 13 at the bottom of the cone, and a lateral water outlet 12 near the bottom of the cone; the deep ultraviolet sterilization module is sealed and assembled on the mounting port 13 of the housing 10, and the deep ultraviolet sterilization module has a deep ultraviolet light source and a conical light guide rod 20 corresponding to the ultraviolet light source, and the conical light guide rod 20 extends into the conical cavity 101 of the housing 10, and is at a certain distance from the inner wall of the conical cavity 101, thereby enclosing a water passage cavity 102 with an inverted V-shaped cross-section.

[0027] The conical light guide rod 20 extends into the conical cavity 101 of the outer shell 10 and is at a certain distance from the inner wall of the conical cavity 101. In the cross-section at any position, the conical light guide rod 20 is located in the middle position of the water flow cavity 102. More preferably, the central axis of the conical cavity 101 of the outer shell 10 coincides with the central axis of the conical light guide rod 20. In this way, the conical light guide rod 20 is always located in the middle position of the water flow cavity 102, which is beneficial for the dynamic water to receive uniform irradiation of the deep ultraviolet light emitted by the conical light guide rod 20. After entering the water flow cavity 102, the water flows from the top of the conical light guide rod 20 to the bottom, so that the conical light guide rod 20 is subjected to balanced force in the water flow.

[0028] When in use, the water inlet 11 of the housing 10 is connected to a water source, and dynamic water flows into the water cavity 102 from the water inlet 11, and then flows out through the water outlet 12. During the process, the dynamic water can be evenly diffused in the inverted V-shaped water cavity 102, and the water flow speed can be effectively reduced; at the same time, the deep ultraviolet light emitted by the deep ultraviolet light source of the deep ultraviolet sterilization module can be transmitted to the water cavity 102 through the conical light guide rod 20, and the dynamic water in the entire water cavity 102 is irradiated and sterilized; the dynamic water receives ultraviolet light for a longer time, and the sterilization effect is good. It can well replace the mercury lamp and be placed in the sterilization cavity for use, effectively avoiding a series of shortcomings of the mercury lamp light source. It has the characteristics of simple and compact structure, convenient and flexible application, and excellent sterilization effect.

[0029] Furthermore, in the present embodiment, the tapered light guide rod 20 is made of quartz glass material with a taper of 1:3.4, which absorbs less deep ultraviolet light and has a higher transmittance, thereby extending the propagation distance of the deep ultraviolet light.

[0030] More specifically, the taper of the conical cavity 101 of the housing 10 is 1:2.8. Figure 3 As shown, the tapered light guide rod 20 and the tapered cavity 101 match each other so that the surface of the tapered light guide rod 20 is approximately parallel to the inner surface of the tapered cavity 101, which more effectively reduces the speed of the water flow, thereby increasing the time for the dynamic water to be irradiated with deep ultraviolet light for sterilization, thereby improving the sterilization effect. Of course, this is not limited to other embodiments.

[0031] Furthermore, in this embodiment, the inner wall of the conical cavity 101 of the housing 10 is provided with a reflective layer (not shown), and the deep ultraviolet light emitted by the conical light guide rod 20 penetrates the water flow and enters the inner wall of the conical cavity 101, and then reflects back through the reflective layer to sterilize the water flow, which can improve the utilization rate of ultraviolet light and greatly enhance the sterilization effect. Specifically, the reflective layer is an aluminum film reflective layer, and of course, it is not limited to this in other embodiments.

[0032] Furthermore, in this embodiment, air bubbles 21 are formed in the tapered light guide rod 20. More preferably, the air bubbles 21 are spherical or ellipsoidal in structure, and the density of the air bubbles 21 is not less than 3 / cm 3 The arrangement of the air bubble 21 can effectively disperse the light, and finally the light is emitted from the outer peripheral surface of the tapered light guide rod 20, and the light emission is more uniform. Compared with the tapered light guide rod without the air bubble structure, it can effectively enhance the radiation intensity of the deep ultraviolet light emitted from the outer peripheral surface of the light guide rod 20 and effectively extend the propagation distance of the deep ultraviolet light in water, and the transmission distance is increased by about 23%. The uniformity of the light emission from the side of the tapered light guide rod 20 is also greatly improved.

[0033] Specifically, the positions of the air bubbles 21 in the tapered light guide rod 20 are randomly arranged, and the density range thereof is controlled by a process when the light guide rod is prepared.

[0034] Of course, in other embodiments, the density of the air bubbles 21 in the tapered light guide rod 20 is not limited to the above, or there is no need to form a structure of the air bubbles 21.

[0035] Furthermore, in the present embodiment, the deep ultraviolet sterilization module includes a light source fixing seat 50, a light guide rod fixing seat 40, the deep ultraviolet light source and the conical light guide rod 20, the conical light guide rod 20 is fixed on the light guide rod fixing seat 40, the light guide rod fixing seat 40 is sealingly assembled on the mounting port 13 of the outer shell 10, the light source fixing seat 50 is fixed on the light guide rod fixing seat 40, and the deep ultraviolet light source is arranged on the light source fixing seat 40, and its light outlet corresponds to the bottom surface of the conical light guide rod 20.

[0036] Specifically, the mounting port 13 of the outer shell 10 is provided with an internal thread, and the light guide rod fixing seat 40 is an annular seat body provided with an external thread. The light guide rod fixing seat 40 is threaded on the mounting port 13 of the outer shell 10. More specifically, the mounting port 13 of the outer shell 10 and the light guide rod fixing seat 40 are also provided with a sealing gasket 71, which can achieve a better sealing effect.

[0037] More specifically, the inner wall of the light guide rod fixing seat 40 is formed with a light guide rod mounting section 41 that is adapted to the taper of the conical light guide rod 20, and the conical light guide rod 20 is sleeved in the light guide rod mounting section 41; the light guide rod fixing seat 40 is also formed with a fixed connection section 42 at an upper position of the light guide rod mounting section 41, and a step 43 is formed between the fixed connection section 42 and the light guide rod mounting section 41.

[0038] The fixed connection section 42 is formed with an internal thread, and the light source fixing seat 50 is provided with an external thread. The light source fixing seat 50 is screwed into the fixed connection section 42 to fix the light source fixing seat 50. At the same time, the light source fixing seat 50 can abut against and fix the tapered light guide rod 20 (indirectly abut in this embodiment), thereby fixing the tapered light guide rod 20. Such a configuration facilitates the loading and unloading operations of the tapered light guide rod 20.

[0039] Furthermore, in this embodiment, the deep ultraviolet light source includes a deep ultraviolet LED 31, a reflective cup 32 and a heat sink 33. The deep ultraviolet LED 31 is packaged in the center of the bottom of the reflective cup 32. The light outlet of the reflective cup 32 is used as the light outlet of the deep ultraviolet light source and corresponds to the bottom surface of the tapered light guide rod 20. The heat sink 33 is in contact with the reflective cup 32. The reflective cup 32 can reflect the light emitted by the deep ultraviolet LED 31 to the light outlet of the reflective cup 32 for concentrated emission to improve the light intensity. The heat sink 33 can timely extract and dissipate the heat generated by the deep ultraviolet LED 31 to ensure the long-term operation of the deep ultraviolet LED 31.

[0040] Specifically, the light source fixing seat 50 is also an annular seat body, the reflective cup 32 is sleeved in the light source fixing seat 50, and the heat sink 33 is sleeved in the light source fixing seat 50 and abuts against the reflective cup 32 to achieve thermal contact. At the same time, more preferably, the heat sink 33 is formed with a plurality of heat sinks 331 at the portion extending from the light source fixing seat, which can better dissipate heat.

[0041] More specifically, the heat sink 33 and the light source fixing base 50 are provided with corresponding connecting through holes (i.e., the connecting through hole 332 of the heat sink 33 and the connecting through hole 51 of the light source fixing base 50), and are connected by fasteners (such as screws), i.e., they are buckled on the light source fixing base 50 by the fasteners to fix the heat sink 33. At the same time, a wire threading hole 333 is provided in the middle position of the heat sink 33 for the wires connected to the ultraviolet LED 31 to pass through.

[0042] Furthermore, in this embodiment, a light-transmitting glass sheet 60 is further provided between the deep ultraviolet light source and the tapered light guide rod 20. The light-transmitting glass sheet 60 is sleeved in the light guide rod fixing seat 40, and the front and rear ends thereof are matched with gaskets 72, and the light-transmitting glass sheet 60 is fixed under the abutment of the step 43 of the light guide rod fixing seat 40 and the light source fixing seat 50. That is, the light source fixing seat 50 abuts against the bottom surface of the tapered light guide rod 20 through the stacked structure of the abutment gasket 72-light-transmitting glass sheet 60-gasket 72, and the light-transmitting glass sheet 60 can be selected to have a light source glass with certain functions, such as an optical lens that can refract the light emitted by the deep ultraviolet light source to form parallel emitted light, and the parallel emitted light is then emitted into the tapered light guide rod 20 to achieve a better light output effect.

[0043] Furthermore, in the present embodiment, the tapered light guide rod 20 is made of quartz glass material, which has a higher transmittance to deep ultraviolet light and less absorption, and has good conductivity to deep ultraviolet light.

[0044] Furthermore, in this embodiment, the outer surfaces of the light source fixing seat 50 and the light guide rod fixing seat 40 are both provided with anti-skid threads to play an anti-skid role.

[0045] Furthermore, in this embodiment, the heat sink 33 is made of aluminum, which has good heat conduction and heat dissipation effects.

[0046] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A dynamic water sterilization device using a light-guiding structure, characterized in that: The invention comprises a shell and a deep ultraviolet sterilization module, wherein the shell is a conical cylindrical structure, and has a water inlet located at the tip of the cone, a mounting port located at the bottom of the cone, and a lateral water outlet near the bottom of the cone; the deep ultraviolet sterilization module is sealed and assembled on the mounting port of the shell, and the deep ultraviolet sterilization module has a deep ultraviolet light source and a conical light guide rod corresponding to the deep ultraviolet light source, and the conical light guide rod extends into the conical cavity of the shell, and is at a certain distance from the inner wall of the conical cavity, thereby enclosing a water passage cavity with an inverted V-shaped cross section; The deep ultraviolet sterilization module includes a light source fixing seat, a light guide rod fixing seat, the deep ultraviolet light source and the conical light guide rod, the conical light guide rod is fixed on the light guide rod fixing seat, the light guide rod fixing seat is sealingly assembled on the mounting port of the shell, the light source fixing seat is fixed on the light guide rod fixing seat, and the deep ultraviolet light source is arranged on the light source fixing seat, and its light outlet corresponds to the bottom surface of the conical light guide rod.

2. The dynamic water sterilization device using a light-guiding structure according to claim 1, characterized in that: The tapered light guide rod is made of quartz glass material, and the taper is 1:3.

4.

3. The dynamic water sterilization device using a light-guiding structure according to claim 2, characterized in that: The taper of the conical cavity of the shell is 1:2.

8.

4. The dynamic water sterilization device using a light-guiding structure according to claim 1, characterized in that: The inner wall of the conical cavity of the shell is provided with a reflective layer.

5. The dynamic water sterilization device using a light-guiding structure according to claim 1, characterized in that: The central axis of the tapered cavity of the housing coincides with the central axis of the tapered light guide rod.

6. The dynamic water sterilization device using a light-guiding structure according to claim 1, characterized in that: Air bubbles are formed in the tapered light guide rod.

7. The dynamic water sterilization device using a light-guiding structure according to claim 6, characterized in that: The air bubbles inside the tapered light guide rod are spherical or ellipsoidal in structure, and the density is not less than 3 / cm 3 .

8. The dynamic water sterilization device using a light-guiding structure according to claim 1, characterized in that: The deep ultraviolet light source includes a deep ultraviolet LED, a reflective cup and a heat sink. The deep ultraviolet LED is encapsulated in the center of the bottom of the reflective cup. The light outlet of the reflective cup serves as the light outlet of the deep ultraviolet light source and corresponds to the bottom surface of the conical light guide rod. The heat sink is abutted against the reflective cup and is buckled on the light source fixing seat through fasteners.

9. The dynamic water sterilization device using a light-guiding structure according to claim 1, characterized in that: A light-transmitting glass sheet is also provided between the deep ultraviolet light source and the tapered light guide rod.

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