Overflow type sterilization device

Abstract

The utility model discloses an overflowing type sterilization device which comprises a circulation plug, an ultraviolet light transmitting cylinder, an ultraviolet light reflecting cylinder, an ultraviolet light source plate and a device shell. A circulation straight pipe is arranged on the circulation plug, the circulation straight pipe is used for water entering or discharging, the circulation plug is detachably connected with the device shell, the circulation straight pipe has various sizes, and the size of the ultraviolet light transmitting cylinder is matched with the size of the circulation straight pipe. The ultraviolet light reflecting cylinder is arranged outside the ultraviolet light transmitting cylinder in a sleeving manner, a plurality of ultraviolet light through holes are formed in the ultraviolet light transmitting cylinder, and the size of the ultraviolet light reflecting cylinder is matched with that of the ultraviolet light transmitting cylinder. A plurality of ultraviolet lamp beads are arranged on the ultraviolet light source plate, and the sizes of the ultraviolet light through holes are matched with the sizes of the ultraviolet lamp beads. The parts are detachably connected with the device shell, and the parts such as ultraviolet light source plates with different circulation plugs can be used according to working conditions such as different water flows and different light source requirements, so that different working condition requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultraviolet sterilization, and in particular relates to an overflow sterilization device. Background Art

[0002] Ultraviolet light-emitting diodes (UVC LEDs), also known as short-wavelength ultraviolet (UVC) light-emitting diodes (LEDs), are a technology that uses ultraviolet light of a specific wavelength for disinfection and sterilization. The UVC band generally refers to ultraviolet light with a wavelength between 200 and 280 nanometers. Ultraviolet light in this band has a strong bactericidal effect, effectively destroying the molecular bonds of nucleic acids (DNA or RNA) in bacteria, viruses, and other microorganisms, causing them to lose their ability to replicate or become inactive and die. This kills all bacteria and viruses in water or air without the use of any chemicals, achieving the purpose of disinfection. UVC LEDs are widely used in sterilization, water purification, medical treatment, and the high-speed decomposition and treatment of pollutants.

[0003] Currently, existing UVCLED over-flow sterilization devices are all designed with specific structures for specific water flow and sterilization requirements. If there are differences in water flow, sterilization requirements, etc. in actual application, users cannot adjust the structure, number of light sources, light source power and other components of the existing over-flow sterilization device, and cannot adapt to different working conditions. Utility Model Content

[0004] The purpose of the utility model is to provide an over-flow sterilizing device to solve the problem that the current over-flow sterilizing device cannot adapt to different working conditions during use.

[0005] In order to solve the above problems, the utility model provides an over-flow sterilization device, which includes a flow plug, an ultraviolet light transmitting tube, an ultraviolet light reflecting tube, an ultraviolet light source plate and a device housing.

[0006] A straight flow pipe is provided on the flow plug, which is used for the entry or discharge of water. The flow plug is detachably connected to the device housing. The straight flow pipe has various sizes, and the user uses the corresponding size of the straight flow pipe according to the maximum water flow to be processed.

[0007] The UV light transmitting tube has an internal hollow structure for water to flow through, and the size of the UV light transmitting tube matches the size of the flow straight pipe.

[0008] The ultraviolet reflective tube has an internal hollow structure and is sleeved on the outside of the ultraviolet transmissive tube. The ultraviolet transmissive tube is provided with a plurality of ultraviolet through holes. The size of the ultraviolet reflective tube matches that of the ultraviolet transmissive tube.

[0009] The ultraviolet light source board is arranged outside the ultraviolet reflective tube. A plurality of ultraviolet lamp beads are arranged on the ultraviolet light source board. The ultraviolet light emitted by the ultraviolet lamp beads can pass through the ultraviolet through hole into the ultraviolet light transparent tube. The size of the ultraviolet through hole matches the size of the ultraviolet lamp beads.

[0010] The device shell is a hollow shell structure, and the combination of the ultraviolet light transmitting tube, the ultraviolet light reflecting tube and the ultraviolet light source plate is arranged inside the device shell.

[0011] Furthermore, the flow plug and the flow straight pipe are designed as one body, and flow plugs of different sizes are used when different maximum water flow rates need to be provided.

[0012] Furthermore, a plurality of plug screw holes are provided on the circulation plug, and a plurality of shell screw holes are provided on the device shell. The plug screw holes and the shell screw holes are threadedly connected with the plug screws, and the plug screws are used to fasten the circulation plug and the device shell.

[0013] Furthermore, a waterproof component is provided between the circulation plug and the device housing, and the waterproof component is used to be tightly connected with the circulation plug, the ultraviolet light transmitting tube, the ultraviolet light reflecting tube, the ultraviolet light source board and the device housing.

[0014] Furthermore, a plurality of light source board slots are provided on the device housing, and the light source board slots are used to accommodate the ultraviolet light source boards. The light source board slots penetrate the entire device housing along the axial direction of the device housing.

[0015] Furthermore, a heat conducting component is provided between the light source board slot and the ultraviolet light source board.

[0016] Furthermore, a light source wire outlet hole is provided on the light source plate groove.

[0017] Furthermore, the light source outlet hole contains sealant.

[0018] Furthermore, the flow plug is threadedly connected to the device housing.

[0019] Furthermore, the ultraviolet light source board is detachably connected to the ultraviolet lamp beads.

[0020] The beneficial effect of the overflow sterilization device provided by the utility model is that, compared with the existing technology, due to the design of the flow plug, ultraviolet light transmitting tube, ultraviolet light reflecting tube and ultraviolet light source board, these components are detachably connected to the device housing, and different flow plugs, ultraviolet light source boards and other components can be used according to different water flows, different light source requirements and other working conditions, thereby adapting to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the explosion of the overflow sterilization device;

[0022] Figure 2It is an anatomical schematic diagram of the over-flow sterilization device along the plane where the axis is located;

[0023] Figure 3 The figure is an anatomical diagram of the opening of the device housing along the vertical axis plane;

[0024] Figure 4 This is a schematic diagram of the front of the flow plug. DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of this utility model, Figures 1 to 4 , a flow-through sterilization device of the utility model is further described in detail.

[0026] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an embodiment of the present invention shows an overflow sterilization device, which includes a flow plug 10, a UV light-transmitting tube 30, a UV light-reflecting tube 40, a UV light source panel 50, and a device housing 60. The flow plug 10 is provided with a flow straight pipe 11 for the inlet and outlet of water. In one embodiment, the flow straight pipe 11 and the flow plug 10 are integrally designed.

[0027] In the present invention, the flow straight pipe 11 is designed with various sizes, and the flow straight pipe 11 and flow plug 10 of corresponding sizes are used according to the maximum water flow rate to be processed by the over-flow sterilizer. Assuming that the outer diameter of the flow straight pipe 11 is D1 (mm), the inner diameter of the flow straight pipe 11 is D2 (mm), and the maximum water flow rate to be processed by the over-flow sterilizer is Q, then when Q = 2 LPM (Liter Per Minute), D1 = 6.4 mm (millimeter, corresponding to a 2 / 8-inch interface); when Q = 5 LPM, D1 = 9.5 mm (3 / 8-inch interface); when Q = 8 LPM, D1 = 9.5 mm (3 / 8-inch interface); and when Q = 15 LPM, D1 = 20 mm (4 / 8-inch external thread interface). If the material of the flow straight pipe 11 is 304 stainless steel, when the flow straight pipe 11 has no external threads, D2 ≤ D1-2mm; when the flow straight pipe 11 has external threads, D2 ≤ D1-5mm. By replacing the flow plug 10, adaptation to different maximum water flow rates can be achieved.

[0028] The flow plug 10 is also provided with a plurality of plug screw holes 12, and the device housing 60 is correspondingly provided with housing screw holes 63. The plug screw holes 12 are threadedly connected to the housing screw holes 63 and the plug screws 13. The plug screws 13 are screwed into the plug screw holes 12 and then into the housing screw holes 63. By tightening the plug screws 13, the flow plug 10 and the device housing 60 are tightly connected. A waterproof assembly 20 is also provided between the flow plug 10 and the device housing 60. When the flow plug 10 and the device housing 60 are tightly connected, squeezing the waterproof assembly 20 between the two further improves the watertightness.

[0029] The UV-transmitting tube 30, the UV-reflecting tube 40, and the UV-light source board 50 are all disposed within the device housing 60. The device housing 60 is also provided with a plurality of light source board slots 61 for accommodating the UV-light source board 50. The light source board slots 61 extend throughout the entire device housing 60 along the axial direction of the device housing 60. After the UV-transmitting tube 30, the UV-reflecting tube 40, and the UV-light source board 50 are assembled, the UV-light source board 50 is disposed within the light source board slots 61. The light source board slots 61 and the UV-light source board 50 are also provided with heat conducting components for securing the UV-light source board 50 and conducting heat thereto.

[0030] A light source outlet hole 62 is also provided on the light source board slot 61 of the device housing 60. The wires on the UV light source board 50 pass through this light source outlet hole 62 to electrically connect to external components, allowing the UV light source board 50 to receive power and signals. In some embodiments, the light source outlet hole 62 contains sealant, which can to some extent fix the wires of the UV light source board 50 and prevent external impurities from passing through. The light source outlet hole 62 extends into the interior of the device housing 60.

[0031] As will be understood, the UV light source panel 50 is provided with a plurality of UV lamp beads 51 for emitting UV light to disinfect the water to be treated. Corresponding to the positions of the UV lamp beads 51, the UV reflective tube 40 is provided with an equal number of UV light through-holes 41 as the number of UV lamp beads 51. The UV light emitted by each UV lamp bead 51 can enter the UV reflective tube 40 through the corresponding UV light through-hole 41. The UV reflective tube 40 is made of a material with a high reflectivity for UV light with a wavelength between 200 and 280 nanometers. For example, polytetrafluoroethylene (PTFE) can be used, which has a reflectivity of 98% for UV light with a wavelength between 200 and 280 nanometers. Other materials for the UV reflective tube 40 include aluminum foil, mirrored aluminum, and the like. After entering the UV reflective tube 40, the UV light is reflected multiple times within the UV reflective tube 40, achieving multiple sterilization and disinfection effects, thereby improving the efficiency of the UV light. To improve work efficiency, the axis of the UV reflective tube 40 coincides with the device housing 60, and at the same time, the two ends of the UV reflective tube 40 are tightly connected to the waterproof component 20.

[0032] In the present invention, a UV-transmitting tube 30 is also disposed within the UV-reflecting tube 40. The axis of the UV-transmitting tube 30 coincides with the device housing 60. The outer wall of the UV-transmitting tube 30 is tightly fitted with the inner wall of the UV-reflecting tube 40 to reduce UV light loss. The open ends of the UV-transmitting tube 30 are tightly connected to the waterproof assembly 20. The UV-transmitting tube 30, the flow plug 10, and the waterproof assembly 20 together form a water flow path. Water flows into the flow-type sterilization device from the flow-type sterilization device through the flow-type sterilization device through the flow-type sterilization device through the flow-type sterilization device. While flowing through the flow-type sterilization device, the water remains in the sealed water path. When the water passes through the UV-transmitting tube 30, it is exposed to UV light and disinfected and sterilized. The material of the ultraviolet light-transmitting tube 30 needs to have good ultraviolet light transmittance. For example, quartz glass has a transmittance of 92% for ultraviolet light with a wavelength between 200 and 280 nanometers. In addition, sapphire glass, fluorine resin and other materials can also be used.

[0033] The ultraviolet light transmitting tube 30, the ultraviolet light reflecting tube 40 and the ultraviolet light source plate 50 are all detachable components, and different components can be replaced as needed. Among them, assuming that the inner diameter of the ultraviolet light transmitting tube 30 is D3 (mm), in order to ensure the laminar flow state of the water flow, D2≤D3≤D2+6mm. Assuming that the outer diameter of the ultraviolet light transmitting tube 30 is D4 (mm), in order to ensure the structural strength of the ultraviolet light transmitting tube 30, D4≥D3+2mm. If the length of the ultraviolet light transmitting tube 30 is L2 (mm), since the average residence time of the water flow in the ultraviolet light transmitting tube 30 needs to be more than 0.1 seconds, then L2≥(Q×1000000÷60)÷[3.14×(D3÷2) 2 ]×0.1. For the ultraviolet reflective tube 40, if the outer diameter of the ultraviolet reflective tube 40 is D5 (mm), taking into account the reflectivity of the material, D5 ≥ D4 + 2mm. When the outer diameter of the ultraviolet reflective tube 40 is D7 (mm), in order to ensure the lighting efficiency of the ultraviolet light and to suppress light leakage from the ultraviolet through-hole 41, D7 should ensure that it can pass through a cone angle of 120° to 130° on the optical axis. If the equivalent light-emitting surface of the ultraviolet lamp bead 51 is D6 (mm), and the distance between its light-emitting surface and the ultraviolet through-hole is L1 (mm), then L1×tan(120°÷2)×2+D6≤D7≤L1×tan(130°÷2)×2+D6. Taking into account the assembly tolerance, L1 ≥ 0.2.

[0034] If the distance L3 (mm) from the UV light through hole 41 to the nearest end of the UV reflective tube 40 is: To ensure a stable sterilization effect, L3 should be greater than the shortest distance for stable water flow expansion, that is, 0.5×L2≤L3≤0.55×L2. If the number of UV light through holes 41 on a certain side of the UV reflective tube 40 is N1 (pieces), that is, the number of UV lamp beads 51 on the UV light source board 50 corresponding to that side is N1, to ensure uniform illumination intensity in the cavity and reduce the number of UV lamp beads 51, L2÷2÷20≤N1≤L2÷2÷15, where N1 is a positive integer. If the radiant power of the UV lamp 51 in steady state is P (mW), the UV reflectivity of the UV reflective tube 40 is η1, the UV transmittance of the UV transparent tube 30 is η2, and the UV dose required by the flow sterilization device is DOSE (mJ / cm2), then P needs to meet the following conditions:

[0035] P≥DOSE×(Q×1000000÷60)÷[100×N1×N2×(η1×η2) 4 ×L2].

[0036] In some embodiments, the number of ultraviolet lamp beads 51 on a ultraviolet light source board 50 is two and a packaging form with a 120° light-emitting angle is adopted.

[0037] It can be understood that the flow plug 10 is threadedly connected to the device housing 60. The ultraviolet light source board 50 is detachably connected to the ultraviolet light lamp beads 51.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A flow-through sterilization device, characterized in that: It comprises a flow plug (10), an ultraviolet light transmitting tube (30), an ultraviolet light reflecting tube (40), an ultraviolet light source plate (50) and a device housing (60); The circulation plug (10) is provided with a circulation straight pipe (11), and the circulation straight pipe (11) is used for the inlet or outlet of water. The circulation plug (10) is detachably connected to the device housing (60). The circulation straight pipe (11) has a variety of sizes, and the user uses the circulation straight pipe (11) of the corresponding size according to the maximum water flow to be processed; The ultraviolet light-transmitting cylinder (30) is an internal hollow structure for water to flow through, and the size of the ultraviolet light-transmitting cylinder (30) matches the size of the flow straight pipe (11); The ultraviolet reflective tube (40) is an internal hollow structure, and the ultraviolet reflective tube (40) is sleeved on the outside of the ultraviolet transmissive tube (30). The ultraviolet transmissive tube (30) is provided with a plurality of ultraviolet through holes (41), and the size of the ultraviolet reflective tube (40) matches the size of the ultraviolet transmissive tube (30); The ultraviolet light source plate (50) is arranged outside the ultraviolet light reflective tube (40), and a plurality of ultraviolet light lamp beads (51) are arranged on the ultraviolet light source plate (50). The ultraviolet light emitted by the ultraviolet light lamp beads (51) can pass through the ultraviolet light through hole (41) and enter the ultraviolet light transparent tube (30), and the size of the ultraviolet light through hole (41) matches the size of the ultraviolet light lamp beads (51); The device housing (60) is a hollow shell structure, and the assembly of the ultraviolet light transmitting tube (30), the ultraviolet light reflecting tube (40) and the ultraviolet light source plate (50) is arranged inside the device housing (60).

2. The overflow sterilization device according to claim 1, characterized in that: The circulation plug (10) and the circulation straight pipe (11) are designed as one body, and circulation plugs (10) of different sizes are used when different maximum water flow rates need to be provided.

3. The overflow sterilization device according to claim 2, characterized in that: The circulation plug (10) is provided with a plurality of plug screw holes (12), and the device housing (60) is provided with a plurality of housing screw holes (63). The plug screw holes (12) and the housing screw holes (63) are threadedly connected with plug screws (13), and the plug screws (13) are used to fasten the circulation plug (10) and the device housing (60).

4. The overflow sterilization device according to claim 1, characterized in that: A waterproof component is also provided between the circulation plug (10) and the device housing (60), and the waterproof component is used to be tightly connected to the circulation plug (10), the ultraviolet light transmitting tube (30), the ultraviolet light reflecting tube (40), the ultraviolet light source plate (50) and the device housing (60).

5. The overflow sterilization device according to claim 1, characterized in that: A plurality of light source board slots (61) are provided on the device housing (60), and the light source board slots (61) are used to accommodate the ultraviolet light source board (50). The light source board slots (61) penetrate the entire device housing (60) along the axial direction of the device housing (60).

6. The overflow sterilization device according to claim 5, characterized in that: A heat conduction component is also provided between the light source plate groove (61) and the ultraviolet light source plate (50).

7. The overflow sterilization device according to claim 5, characterized in that: The light source plate groove (61) is also provided with a light source wire outlet hole (62).

8. The overflow sterilization device according to claim 7, characterized in that: The light source outlet hole (62) contains sealant.

9. The overflow sterilization device according to claim 1, characterized in that: The flow plug (10) is threadedly connected to the device housing (60).

10. The overflow sterilization device according to claim 1, characterized in that: The ultraviolet light source plate (50) is detachably connected to the ultraviolet light lamp bead (51).

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