A detachable flow-through terminal sterilization device

Abstract

The application relates to a detachable flow type terminal sterilization device which comprises a shell and a sterilization assembly, the shell is provided with a water inlet and a water outlet, the shell is internally formed with a water inlet cavity, a mounting cavity and a water outlet cavity which are sequentially arranged along the water inlet to the water outlet, the sterilization assembly comprises a reflecting sleeve and a sterilization light source, the reflecting sleeve is arranged in the mounting cavity and detachably connected with the shell, the reflecting sleeve is communicated with the water inlet cavity and the water outlet cavity, sterilization light emitted by the sterilization light source penetrates into the reflecting sleeve, and the sterilization light forms a sterilization area penetrating through the reflecting sleeve after multiple reflections in the reflecting sleeve; the mode of prolonging the length of a water pipe to increase sterilization time can cause the problems of large equipment volume, increased energy consumption and poor water flow.

Description

Technical Field

[0001] This invention relates to the field of dynamic water sterilization technology, and in particular to a detachable flow-through end sterilization device. Background Technology

[0002] Currently, deep ultraviolet (DUV) sterilization of dynamic water is widely used. However, LEDs generate a lot of heat and have poor heat dissipation, resulting in low LED light output and incomplete sterilization. Existing solutions mostly achieve sterilization by extending the water pipe to lengthen the water flow path, increasing LED power, or extending the sterilization time.

[0003] For example, the ultraviolet sterilization treatment tank proposed in utility model patent application number CN202222342805.7 has a water path that bends and extends from the bottom to the top of the tank, which prolongs the water flow path from the inlet to the outlet, increases the time the water is irradiated by the ultraviolet lamp, and improves the sterilization effect.

[0004] However, extending the length of the water pipe increases the size of the equipment, which is not conducive to achieving compact miniaturization; increasing the LED power increases the energy consumption of the equipment, which is not conducive to energy saving; extending the sterilization time usually adopts the form of flipping the flow channel or obstructing the flow, but the resistance is large after the water flow is bent and changed direction, and the long path can easily lead to poor water flow, making it inconvenient to achieve stable water flow and resulting in a poor user experience. Therefore, how to provide a disinfection device that can effectively improve the sterilization effect within a shorter path is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, it is necessary to provide a detachable flow-through end sterilization device to solve the problems of large equipment size, increased energy consumption and poor water flow caused by extending the water pipe length to increase sterilization time.

[0006] This invention provides a detachable flow-through end sterilization device, comprising a housing and a sterilization component. The housing has an inlet and an outlet. Inside the housing, an inlet chamber, an installation chamber, and an outlet chamber are sequentially arranged from the inlet to the outlet. The sterilization component includes a reflector sleeve and a sterilization light source. The reflector sleeve is built into the installation chamber and detachably connected to the housing. The reflector sleeve connects the inlet chamber and the outlet chamber. The sterilization light source is connected to the reflector sleeve. The sterilization light emitted by the sterilization light source penetrates into the reflector sleeve. After multiple reflections within the reflector sleeve, the sterilization light forms a sterilization area penetrating the reflector sleeve.

[0007] Furthermore, the bottom of the outer casing is provided with an inlet and an outlet on both sides, and the top of the outer casing is provided with an opening that spans the inlet cavity, the mounting cavity and the outlet cavity. A top cover is detachably connected to the opening of the outer casing.

[0008] Furthermore, it also includes a heat exchange tube, which is vertically arranged. The bottom end of the heat exchange tube is connected to the outside, and the top end of the heat exchange tube extends into the water inlet cavity and is set higher than the reflector sleeve, so that the medium in the water inlet cavity can exchange heat with the outside.

[0009] Furthermore, it also includes a safety valve, which is built into the water inlet chamber and divides the water inlet chamber into a first chamber and a second chamber arranged sequentially in a vertically upward direction. The first chamber is connected to the water inlet, and the second chamber is connected to the reflector sleeve and the heat exchange tube. When the water level in the second chamber is greater than a preset value, the safety valve is closed; when the water level in the second chamber is less than the preset value, the safety valve is opened.

[0010] Furthermore, the reflective sleeve includes an annular reflective layer and an annular light-transmitting layer. The annular reflective layer is built into the annular light-transmitting layer. A through hole is formed on the annular reflective layer. The sterilization light source is installed on the outer wall of the annular light-transmitting layer. The sterilization light emitted by the sterilization light source passes through the annular light-transmitting layer and the through hole and extends into the annular reflective layer.

[0011] Furthermore, the sterilization component also includes two sealing rings, which are coaxially arranged. Each of the two sealing rings has an annular groove on its opposite side. The two ends of the reflective sleeve are respectively fitted into the two annular grooves. Each of the two sealing rings has an annular protrusion on its outer wall on its opposite side. Both annular protrusions engage with the annular step formed in the mounting cavity of the outer shell.

[0012] Furthermore, the sterilization component also includes two fixing blocks arranged opposite to each other, the two fixing blocks being built into the mounting cavity, the opposite sides of the two fixing blocks abutting against the outer shell, a clamping gap being formed between the two fixing blocks, and the reflective sleeve being fitted into the clamping gap.

[0013] Furthermore, a first rib is provided on one side of the two fixed blocks facing each other, and a clamping gap is formed between the two first ribs. A second rib is provided on one side of the two fixed blocks facing away from each other. The second rib abuts against the inner wall of the outer shell and forms a heat exchange cavity with the inner wall of the outer shell.

[0014] Furthermore, the sterilization component also includes an exhaust pipe, which is fixedly connected to the outer casing and connects the heat exchange chamber to the outside.

[0015] Furthermore, the sterilization light source includes a PCB board and an LED lamp. The PCB board is fixedly connected to the outer wall of the reflector sleeve, and the LED lamp is mounted on the PCB board to form the sterilization light.

[0016] The sterilization light source also includes a power cord, one end of which passes through a wire hole in the housing and extends into the mounting cavity and is electrically connected to the PCB board, and the other end of which is connected to an external power source.

[0017] Compared with existing technologies, the sterilizing light emitted by the sterilizing light source is reflected multiple times inside the reflective sleeve to form a sterilizing area that penetrates the reflective sleeve. The flowing water to be sterilized enters the reflective sleeve from the inlet chamber. Because the sterilizing area is filled with sterilizing light that has been reflected multiple times, the sterilizing light can repeatedly act on the water flow, effectively enhancing the sterilization and disinfection effect on the water flow. There is no need to extend the pipeline path, which effectively reduces the size of the equipment. The sterilization efficiency is increased by using reflected light, which is more energy-saving and environmentally friendly. The entire sterilization process only needs to pass through the reflective sleeve, and the water flow is smooth. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall internal structure of the detachable flow-through end sterilization device provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the sealing ring structure in the detachable flow-through end sterilization device provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing block in the detachable flow-through end sterilization device provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the sterilization light source in the detachable flow-through terminal sterilization device provided in an embodiment of the present invention. Detailed Implementation

[0022] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figure 1As shown, the present invention provides a detachable flow-through end sterilization device, including a shell and a sterilization component 200. The shell has an inlet and an outlet. Inside the shell, an inlet cavity, an installation cavity 120 and an outlet cavity 130 are formed sequentially from the inlet to the outlet. The sterilization component 200 includes a reflector sleeve 210 and a sterilization light source 220. The reflector sleeve 210 is built into the installation cavity 120 and is detachably connected to the shell. The reflector sleeve 210 connects the inlet cavity and the outlet cavity 130. The sterilization light source 220 is connected to the reflector sleeve 210. The sterilization light emitted by the sterilization light source 220 penetrates into the reflector sleeve 210. After multiple reflections within the reflector sleeve 210, the sterilization light forms a sterilization area penetrating the reflector sleeve 210.

[0024] During implementation, the sterilizing light emitted by the sterilizing light source 220 is reflected multiple times within the reflective sleeve 210 to form a sterilizing area that penetrates the reflective sleeve 210. The flowing water to be sterilized enters the reflective sleeve 210 from the inlet chamber. Since the sterilizing area is filled with sterilizing light that has been reflected multiple times, the sterilizing light can repeatedly act on the water flow, effectively enhancing the sterilization and disinfection effect on the water flow. There is no need to extend the pipeline path, effectively reducing the size of the equipment. The use of reflected light to increase sterilization efficiency is more energy-saving and environmentally friendly. The entire sterilization process only needs to pass through the reflective sleeve 210, ensuring smooth water flow.

[0025] In this embodiment, the outer casing serves to support the sterilization component 200 and guide water flow. The outer casing has an inlet and an outlet, and its interior contains an inlet chamber, an installation chamber 120, and an outlet chamber 130 arranged sequentially from the inlet to the outlet. The sterilization component 200 is installed in the installation chamber 120. Water enters through the inlet, passes through the inlet chamber, the sterilization component 200, and the outlet chamber 130, and then flows out from the outlet.

[0026] The outer casing has an inlet and an outlet on both sides of its bottom, and an opening spanning the inlet chamber, mounting chamber 120, and outlet chamber 130 on its top. A top cover 140 is detachably connected to the opening. The detachable top cover 140 facilitates the cleaning of scale and other foreign objects from the inlet and outlet chambers 130, and also facilitates the installation and maintenance of the sterilization component 200.

[0027] In one embodiment, the top cover 140 has an internal stop structure for assembly and connection with the outer shell. Of course, in other embodiments, the fastening methods can also be snap-fit, riveting, welding, etc.

[0028] To improve the sterilization efficiency of the sterilization component 200 and prevent the water from overheating due to friction with the pipe, which would affect the light emission efficiency of the sterilization component 200, this embodiment also includes a heat exchange tube 111. The heat exchange tube 111 is vertically arranged, with its bottom end connected to the outside and its top end extending into the water inlet cavity and above the reflector sleeve 210, so that the medium in the water inlet cavity can exchange heat with the outside.

[0029] To prevent water in the inlet chamber from flowing back into the heat exchange tube 111, in one embodiment, a safety valve 112 is also included. The safety valve 112 is built into the inlet chamber and divides the inlet chamber into a first chamber and a second chamber arranged sequentially in a vertically upward direction. The first chamber is connected to the water inlet, and the second chamber is connected to the reflector sleeve 210 and the heat exchange tube 111. When the water level in the second chamber is greater than a preset value, the safety valve 112 is closed, and when the water level in the second chamber is less than the preset value, the safety valve 112 is opened.

[0030] The safety valve 112 can be implemented using a structure of spring, baffle, and plug. Specifically, the baffle is built into the water inlet chamber and divides the water inlet chamber into the first chamber and the second chamber. A safety hole is provided on the baffle. The spring is fixedly connected to the baffle, and the top of the spring is fixedly connected to the plug. When the water level is higher than the preset value, the water pressure acting on the plug is greater, which can press the plug to block the safety hole, and the first chamber and the second chamber are disconnected. Conversely, when the water level is lower than the preset value, the water pressure acting on the plug is smaller, and the plug and the safety hole can be spaced apart, and the first chamber and the second chamber are connected.

[0031] It is understood that the preset value described above refers to a water level that is higher than the top of the reflector sleeve 210 and lower than the top of the heat exchange tube 111. Of course, the safety valve 112 can also adopt other forms of structure to prevent water in the inlet chamber from flowing back into the heat exchange tube 111, and the embodiments of the present invention do not limit this.

[0032] In one embodiment, a temperature sensor 150 is installed in the outlet chamber 130 and / or the inlet chamber to detect changes in the water temperature in the water chamber in real time, which can be adjusted according to different scenarios and processing flow rates.

[0033] Understandably, one or more temperature sensors 150 can be installed in multiple locations on the housing to provide temperature distribution change parameter data to the external motherboard or other control hardware, thereby controlling whether the component is turned on or off. The form of the temperature sensor 150 is not limited to platinum resistance thermometers, thermocouples, thermistors, infrared sensors, etc.

[0034] When water flows into the reflector sleeve 210, the sterilizing light from the sterilization light source 220 is reflected multiple times within the reflector sleeve 210, thereby achieving repeated sterilization of the water flow and completing the sterilization process. The reflector sleeve 210 first provides a channel for the water flow, and simultaneously enhances the reflective surface for the sterilizing light.

[0035] The reflector sleeve 210 can be made of stainless steel with a polished mirror finish to reflect the bactericidal light, or it can be made of PTFE material, or an aluminum vacuum coating can be applied to the inner wall of the reflector sleeve 210. All of these methods can achieve the effect of reflecting the bactericidal light.

[0036] To ensure the reflective sleeve 210 has excellent stability, in one embodiment, the reflective sleeve 210 includes an annular reflective layer and an annular light-transmitting layer. The annular reflective layer is built into the annular light-transmitting layer, and a through hole is formed on the annular reflective layer. The germicidal light source 220 is installed on the outer wall of the annular light-transmitting layer, and the germicidal light emitted by the germicidal light source 220 passes through the annular light-transmitting layer and the through hole and extends into the annular reflective layer.

[0037] The annular reflective layer adopts the above-mentioned stainless steel polished mirror treatment structure, PTFE material and aluminum vacuum coating, etc. The annular light-transmitting layer can be made of a material with high transmittance to sterilization light (deep ultraviolet light), preferably high-purity quartz or PTFE. When the annular light-transmitting layer is made of PTFE, the sterilization device does not have quartz glass components, thus making the product more convenient to transport, wider in terms of usage conditions and scope, and reducing the possibility of product breakage.

[0038] It should be noted that the annular light-transmitting layer can adopt a cylindrical structure, a square structure, or an irregularly shaped water-permeable structure, and the embodiments of the present invention do not limit this.

[0039] In another embodiment, the annular reflective layer and the annular light-transmitting layer can be fabricated as a whole using PTFE to improve the reliability and stability of the device assembly.

[0040] like Figure 2 As shown, to achieve a sealed connection between the reflector sleeve and the inlet and outlet chambers 130, in one embodiment, the sterilization component 200 further includes two sealing rings 230. The two sealing rings 230 are coaxially arranged, and each of the two sealing rings 230 has an annular groove 231 on its opposite side. The two ends of the reflector sleeve 210 are respectively fitted into the two annular grooves 231. Each of the two sealing rings 230 has an annular protrusion 232 on its outer wall on its opposite side, and both annular protrusions 232 engage with the annular step formed in the mounting cavity 120 of the outer shell. The sealing rings 230 should be made of an elastic material.

[0041] To facilitate fixing the reflector sleeve 210, the sterilization component 200 in this embodiment also includes two fixing blocks 240 arranged opposite to each other. The two fixing blocks 240 are built into the mounting cavity 120, and the opposite sides of the two fixing blocks 240 abut against the outer shell. A clamping gap is formed between the two fixing blocks 240, and the reflector sleeve 210 is snapped into the clamping gap.

[0042] Among them, the two fixing blocks 240 are provided with a first rib 241 on one side opposite to each other, and a clamping gap is formed between the two first ribs 241. The two fixing blocks 240 are provided with a second rib 242 on the opposite side, and the second rib 242 abuts against the inner wall of the shell and forms a heat exchange cavity with the inner wall of the shell.

[0043] In one embodiment, the first rib 241 can be adopted as follows: Figure 3 The arc-shaped block structure shown has its bottom connected to the reflector sleeve 210. The sterilization light source 220 can be fitted into the concave part of the arc-shaped block. Meanwhile, the second rib 242 can be used as... Figure 3 The strip-shaped block structure shown is used to form multiple strip-shaped heat exchange cavities that span the entire mounting cavity 120.

[0044] Of course, in other embodiments, the first rib 241 and the second rib 242 can also adopt other structural forms such as quadrilaterals. Similarly, the distribution of the first rib 241 and the second rib 242 can be arranged in a horizontal, vertical or radial pattern. The number of the first rib 241 and the second rib 242 can be one or more, and there is no limitation on this.

[0045] To further improve the heat exchange efficiency between the mounting cavity 120 and the outside environment, in one embodiment, the sterilization component 200 further includes an exhaust pipe 250, which is fixedly connected to the outer shell and connects the heat exchange cavity to the outside environment. Of course, in other embodiments, the exhaust pipe 250 may also be a quadrilateral, pentagonal, or other polygonal irregular structure.

[0046] like Figure 4 As shown, in one embodiment, the germicidal light source 220 includes a PCB board 221 and an LED lamp 222. The PCB board 221 is fixedly connected to the outer wall of the reflector sleeve 210, and the LED lamp 222 is mounted on the PCB board 221 to generate germicidal light. The germicidal light source 220 also includes a power cord 223. One end of the power cord 223 passes through a wire hole in the housing, extends into the mounting cavity 120, and is electrically connected to the PCB board 221. The other end of the power cord 223 is connected to an external power source.

[0047] Compared with existing technologies: the sterilizing light emitted by the sterilizing light source 220 is reflected multiple times within the reflective sleeve 210 to form a sterilizing area that penetrates the reflective sleeve 210. The flowing water to be sterilized enters the reflective sleeve 210 from the inlet chamber. Since the sterilizing area is filled with sterilizing light that has been reflected multiple times, the sterilizing light can repeatedly act on the water flow, effectively enhancing the sterilization and disinfection effect on the water flow. There is no need to extend the pipeline path, effectively reducing the size of the equipment. The sterilization efficiency is increased by using reflected light, which is more energy-saving and environmentally friendly. The entire sterilization process only needs to pass through the reflective sleeve 210, and the water flow is smooth.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A detachable flow-through end sterilization device, characterized in that, Including the outer casing and sterilization components; The outer casing has a water inlet and a water outlet, and the interior of the outer casing forms a water inlet cavity, a mounting cavity, and a water outlet cavity arranged sequentially from the water inlet to the water outlet. The sterilization component includes a reflective sleeve and a sterilization light source. The reflective sleeve is built into the mounting cavity and detachably connected to the outer shell. The reflective sleeve connects the water inlet cavity and the water outlet cavity. The sterilization light source is connected to the reflective sleeve. The sterilization light emitted by the sterilization light source penetrates into the reflective sleeve. After multiple reflections within the reflective sleeve, the sterilization light forms a sterilization area that penetrates the reflective sleeve. The reflective sleeve includes an annular reflective layer and an annular light-transmitting layer. The annular reflective layer is built into the annular light-transmitting layer. A through hole is opened on the annular reflective layer. The bactericidal light source is installed on the outer wall of the annular light-transmitting layer. The bactericidal light emitted by the bactericidal light source passes through the annular light-transmitting layer and the through hole and extends into the annular reflective layer. The sterilization component also includes two fixing blocks arranged opposite each other, the two fixing blocks are built into the mounting cavity, the opposite sides of the two fixing blocks abut against the outer shell, a clamping gap is formed between the two fixing blocks, and the reflective sleeve is fitted into the clamping gap; The two fixing blocks are provided with first ribs on opposite sides, and the clamping gap is formed between the two first ribs. The two fixing blocks are provided with second ribs on opposite sides, and the second ribs abut against the inner wall of the outer shell and form a heat exchange cavity between them and the inner wall of the outer shell. The sterilization component also includes an exhaust pipe, which is fixedly connected to the outer shell and connects the heat exchange chamber to the outside.

2. The detachable flow-through end sterilization device according to claim 1, characterized in that, The bottom of the outer casing has an inlet and an outlet on each side, and the top of the outer casing has an opening that spans the inlet cavity, the mounting cavity, and the outlet cavity. A top cover is detachably connected to the opening of the outer casing.

3. The detachable flow-through end sterilization device according to claim 1, characterized in that, It also includes a heat exchange tube, which is vertically arranged. The bottom end of the heat exchange tube is connected to the outside, and the top end of the heat exchange tube extends into the water inlet cavity and is set higher than the reflector sleeve, so that the medium in the water inlet cavity can exchange heat with the outside.

4. The detachable flow-through end sterilization device according to claim 3, characterized in that, It also includes a safety valve, which is built into the water inlet chamber and divides the water inlet chamber into a first chamber and a second chamber arranged in sequence along the vertical upward direction. The first chamber is connected to the water inlet, and the second chamber is connected to the reflector sleeve and the heat exchange tube. When the water level in the second chamber is greater than a preset value, the safety valve is closed; when the water level in the second chamber is less than the preset value, the safety valve is opened.

5. The detachable flow-through end sterilization device according to claim 1, characterized in that, The sterilization component also includes two sealing rings, which are coaxially arranged. Each of the two sealing rings has an annular groove on its opposite side. The two ends of the reflective sleeve are respectively fitted into the two annular grooves. Each of the two sealing rings has an annular protrusion on its outer wall on its opposite side. Both annular protrusions engage with the annular step formed in the mounting cavity of the outer shell.

6. The detachable flow-through end sterilization device according to claim 1, characterized in that, The sterilization light source includes a PCB board and an LED lamp. The PCB board is fixedly connected to the outer wall of the reflector sleeve, and the LED lamp is mounted on the PCB board to generate the sterilization light. The sterilization light source also includes a power cord, one end of which passes through a wire hole in the housing and extends into the mounting cavity and is electrically connected to the PCB board, and the other end of which is connected to an external power source.

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