Efficient ultraviolet water disinfection and sterilization device

Abstract

The invention discloses an efficient ultraviolet water disinfection and sterilization device which comprises a shell, a shell cover and an LED ultraviolet sterilization lamp, the shell cover is detachably connected to the shell and provided with a water inlet connector and a water outlet connector, the efficient ultraviolet water disinfection and sterilization device further comprises a protection cover, a quartz tube and a heat dissipation core, a sleeve is arranged in the shell cover, the quartz tube is fixed in the shell, the upper end of the quartz tube is fixed to the sleeve, and the lower end of the quartz tube is fixed to the heat dissipation core. A water flowing gap communicated with the water inlet connector is formed between the quartz tube and the inner wall of the shell, a cavity for the LED ultraviolet germicidal lamp to irradiate is further formed in the quartz tube, a through hole communicated with the water flowing gap and the cavity is formed in the bottom of the quartz tube, and the protective cover is fixed in the shell cover and located on the inner side of the sleeve. A plurality of overflowing holes communicated with the cavity are formed in the side wall of the protective cover, and the heat dissipation core and the LED ultraviolet germicidal lamp are fixed in the protective cover; the device has the advantages of improving the treatment flow and the sterilization efficiency and prolonging the service life through efficient heat dissipation design.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a high-efficiency ultraviolet water disinfection and sterilization device. Background Art

[0002] In today's society, as people pay more and more attention to health and public health safety standards become increasingly stringent, the market demand for efficient and reliable sterilization and disinfection technologies continues to grow. As a non-chemical treatment method, ultraviolet (UV) sterilization technology has been widely used in water treatment, air disinfection, surface sterilization and other fields due to its high efficiency, no residue and low impact on the environment. However, existing traditional ultraviolet sterilization devices generally face problems of mercury pollution, high heat generation, and delayed start-up of sterilization, which limits their scope of application. The new UV-LED light source solves the above problems and has great application potential, but the problem of small flow rate of UV-LED light source limits its scope of application. There is an urgent need for new large-flow LED light source sterilizers.

[0003] Most of the UV-LED sterilization equipment on the market are designed based on medium and low flow rates, which means that they are designed with low power and usually use natural cooling or simple air cooling systems to control the heat generated by the UV-LED lamp beads. This cooling method is sufficient when dealing with medium and low flow rates of liquids or gases, but it is not enough for application scenarios that need to handle large flow rates. When trying to increase the sterilization efficiency by increasing the number of UV-LED sterilizers or using a single UV-LED sterilizer with higher power, a large amount of heat energy is generated. This additional heat will not only reduce the working efficiency of the UV-LED sterilizer, but may also cause the equipment to overheat, shorten its service life, and even cause safety hazards.

[0004] Therefore, in order to meet the market demand for high-throughput UV-LED sterilization devices, it is necessary to solve the heat dissipation and structural problems caused by high-power UV-LED lamps. This requires the development of a new heat dissipation mechanism that can effectively remove excess heat while maintaining the stability and durability of the equipment. Summary of the invention

[0005] The object of the present invention is to provide a high-efficiency ultraviolet water disinfection and sterilization device, which can improve the processing flow and sterilization efficiency and extend the service life through an efficient heat dissipation design.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency ultraviolet water disinfection and sterilization device, comprising a shell, a shell cover and an LED ultraviolet germicidal lamp, wherein the shell cover is detachably connected to the shell, the shell cover has a water inlet interface and a water outlet interface, and also comprises a protective cover, a quartz tube and a heat dissipation core, a sleeve is arranged in the shell cover, the quartz tube is fixed in the shell, the upper end of the quartz tube is fixed to the sleeve, and a water flow gap connected to the water inlet interface is formed between the quartz tube and the inner wall of the shell, the quartz tube also has a cavity for irradiation by the LED ultraviolet germicidal lamp, a through hole connecting the water flow gap and the cavity is opened at the bottom of the quartz tube, the protective cover is fixed in the shell cover and is located on the inner side of the sleeve, a plurality of flow holes connected to the cavity are opened on the side wall of the protective cover, the heat dissipation core and the LED ultraviolet germicidal lamp are fixed in the protective cover, and a heat conducting sheet is arranged between the heat dissipation core and the LED ultraviolet germicidal lamp, and the water outlet interface is fixed at the upper end of the sleeve.

[0007] Preferably, it also includes a water flow switch for controlling the opening and closing of the LED ultraviolet sterilization lamp, the water flow switch controls the opening and closing of the LED ultraviolet sterilization lamp through a control module, the control module is also electrically connected to an indicator light, and the indicator light is fixed in the shell cover; when water flows through, the water flow switch controls the LED ultraviolet sterilization lamp to start through the control module, and controls the indicator light to light up; when the water flow stops or there is no water flow, the water flow switch controls the LED ultraviolet sterilization lamp to turn off through the control module, and controls the indicator light to go out.

[0008] Preferably, the water flow switch includes a temperature sensor, which is arranged on the heat dissipation core and is used to monitor the temperature of the heat dissipation core in real time; when it is detected that the temperature exceeds a preset threshold, the LED ultraviolet sterilization lamp is controlled to be turned off through the control module, and when it is detected that the temperature is lower than the preset threshold, the LED ultraviolet sterilization lamp is controlled to work through the control module.

[0009] Preferably, the water flow switch includes a reed switch and a magnetic ring that moves with the water flow, the reed switch is arranged in the shell cover and is located near the water inlet interface and is electrically connected to the control module, the magnetic ring is arranged in the water inlet interface, and the water inlet interface is also provided with an elastic reset member for resetting the magnetic ring; when water flows through, the water flow pushes the magnetic ring to move to a position close to the reed switch, and the reed switch closes its contacts under the action of the magnetic field of the magnetic ring and outputs a control signal to the control module; when the water flow stops, the elastic reset member pushes the magnetic ring to reset away from the reed switch, and the reed switch contacts are disconnected.

[0010] Preferably, a valve core is fixed in the water inlet interface, a limit ring and a water outlet end cover are also fixed in the water inlet interface, the magnetic ring is sleeved on the valve core, the valve core is located between the limit ring and the water outlet end cover, and a gap is provided between the valve core and the inner wall of the water inlet interface, the elastic reset member is connected between the magnetic ring and the water outlet end cover, the valve core comprises a cylindrical main body, a plurality of abutting ribs arranged at one end of the main body and a plurality of ribs arranged at the other end of the main body, a plurality of the abutting ribs are uniformly fixed on one side of the main body in a circumferential direction, an end face of the abutting ribs contacts the limit ring, a side face of the abutting ribs contacts the inner wall of the water inlet interface, a plurality of the ribs are uniformly fixed on the other end of the main body in a circumferential direction, and one end of the ribs abuts on the water outlet end cover, a first water through hole is opened in the center of the water outlet end cover, a plurality of second water through holes are uniformly arranged circumferentially on the water outlet end cover around the water through hole, and the diameter of the first water through hole is larger than the diameter of the second water through hole.

[0011] Preferably, the limiting ring includes an integrally formed front end and a rear end, the front end having a plane for installing a sealing ring, the rear end having a plane in contact with the abutment rib, an annular bevel groove is arranged on the outer peripheral surface of the limiting ring, the groove wall of the annular bevel groove forms an inclined surface along the circumferential direction, and the inclined surface is inclined downward toward the front end, and an annular groove is arranged on the inner wall of the water inlet interface, the annular groove corresponds to the annular bevel groove, the limiting ring is fixed in the water inlet interface by a retaining spring arranged between the annular bevel groove and the annular groove, and the retaining spring cooperates with the inclined surface, when the valve core is forced to move outward, the limiting ring generates a reverse stopping force under the cooperation of the retaining spring and the inclined surface, to prevent the valve core from separating from the water inlet interface.

[0012] Preferably, a reflective lining is provided inside the quartz tube, and the material of the reflective lining is polytetrafluoroethylene, alumina, titanium dioxide or silver. A reflective plate is fixed to the bottom of the quartz tube, and the through hole is provided on the reflective plate.

[0013] Preferably, a support ring is fixed to the bottom of the shell, the upper end of the support ring is against the reflector, and a plurality of notches for water to flow through are evenly formed on the side wall of the support ring in a circumferential direction.

[0014] Preferably, a quartz glass plate is provided at the lower end of the protective cover, the quartz glass plate is located below the LED ultraviolet germicidal lamp, and a positioning ring is provided between the quartz glass plate and the LED ultraviolet germicidal lamp, and a support column is coaxially installed on the heat dissipation core, and the support column contacts the quartz glass plate after passing through the LED ultraviolet germicidal lamp.

[0015] Preferably, a flow limiting valve for adjusting the water flow is installed in the water outlet interface.

[0016] Compared with the prior art, the advantages of the present invention are that the device integrates the heat dissipation system with the sterilization system, effectively solving the heat dissipation problem faced by traditional ultraviolet sterilization devices when processing large flow materials, and significantly improving the sterilization efficiency and stability of the equipment.

[0017] Specifically, water first enters the device from the water inlet interface, flows downward along the water inlet gap formed between the shell and the quartz tube, and then passes through the through hole at the bottom of the quartz tube. The water flows from bottom to top into the cavity for sterilization. Since the quartz tube is transparent, it can be sterilized on both the water inlet side and the inner side, which improves the sterilization effect. In the cavity, part of the water continues to flow upward, and the other part of the water enters the internal space of the protective cover through multiple flow holes on the side wall of the protective cover. The water flow entering the protective cover can take away the heat generated by the heat sink, providing effective cooling. Finally, the water flows that have been fully sterilized and heat exchanged converge and flow out of the device from the water outlet interface set at the upper end of the sleeve.

[0018] In order to further improve the heat dissipation efficiency, the device adopts a structural design that combines a protective cover and a heat dissipation core. The protective cover is fixed in the shell cover and is located on the inner side of the sleeve, while the heat dissipation core is fixed in the protective cover and is tightly connected to the LED ultraviolet sterilization lamp through a heat conductor. This design significantly improves the heat dissipation efficiency through a larger contact area and efficient heat dissipation materials. Due to the improvement in heat dissipation performance, the device can use a higher-power sterilization lamp to meet the sterilization needs of large flows.

[0019] Therefore, this structural design not only effectively improves the heat dissipation performance of the large-flow UV sterilizer, but also ensures the stable working efficiency and long service life of the LED UV sterilizer through optimized water flow path design, achieving a dual improvement in heat dissipation effect and sterilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 This is a circuit principle block diagram of the control module, temperature sensor, LED ultraviolet sterilization lamp and indicator light in the present invention when they work together; Figure 4 It is a schematic diagram of the three-dimensional structure of the valve core and the magnetic ring in the present invention when they cooperate; Figure 5 It is a side view of the limiting ring in the present invention; Figure 6 For the present invention Figure 2 A local enlarged schematic diagram of the middle A; Figure 7 It is a three-dimensional structural schematic diagram of the valve core in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the protective cover in the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the support ring in the present invention; In the figure, 1, shell; 2, shell cover; 3, LED ultraviolet germicidal lamp; 4, water inlet interface; 5, water outlet interface; 6, protective cover; 7, quartz tube; 8, heat sink; 9, sleeve; 10, water flow gap; 11, cavity; 12, through hole; 13, flow hole; 14, magnetic ring; 15, reed switch; 16, elastic reset member; 17, valve core; 18, limit ring; 19, water outlet end cover; 20, first water hole; 21, The second water hole; 22. the support ring; 23. the notch; 24. the reflective lining; 25. the quartz glass plate; 26. the positioning ring; 27. the support column; 28. the flow limiting valve; 29. ​​the temperature sensor; 30. the control module; 31. the front end; 32. the rear end; 33. the annular bevel; 34. the annular groove; 35. the retaining spring; 36. the reflective plate; 37. the heat conducting sheet; 38. the indicator light; 39. the abutting rib; 40. the rib plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Embodiment 1: Figure 1-Figure 9As shown, a high-efficiency ultraviolet water disinfection and sterilization device comprises a shell 1, a shell cover 2 and an LED ultraviolet sterilization lamp 3. The shell cover 2 is detachably connected to the shell 1. The shell cover 2 has a water inlet interface 4 and a water outlet interface 5, and also comprises a protective cover 6, a quartz tube 7 and a heat dissipation core 8. A sleeve 9 is arranged in the shell cover 2. The quartz tube 7 is fixed in the shell 1. The upper end of the quartz tube 7 is fixed to the sleeve 9, and a water flow gap 10 connected to the water inlet interface 4 is formed between the quartz tube 7 and the inner wall of the shell 1. The quartz tube 7 also has a There is a cavity 11 for irradiation by the LED ultraviolet germicidal lamp 3, a through hole 12 connecting the water flow gap 10 and the cavity 11 is opened at the bottom of the quartz tube 7, the protective cover 6 is fixed in the shell cover 2 and is located on the inner side of the sleeve 9, and a plurality of flow holes 13 connected to the cavity 11 are opened on the side wall of the protective cover 6, the heat dissipation core 8 and the LED ultraviolet germicidal lamp 3 are fixed in the protective cover 6, and a heat conducting sheet 37 is arranged between the heat dissipation core 8 and the LED ultraviolet germicidal lamp 3, and the water outlet interface 5 is fixed at the upper end of the sleeve 9.

[0024] Embodiment 2: Figure 1-Figure 9 As shown, different from the first embodiment, it also includes a water flow switch for controlling the opening and closing of the LED ultraviolet sterilization lamp 3. The water flow switch controls the opening and closing of the LED ultraviolet sterilization lamp 3 through the control module 30. The control module 30 is also electrically connected to an indicator light 38, and the indicator light 38 is fixed in the shell cover 2; when water flows through, the water flow switch controls the LED ultraviolet sterilization lamp 3 to start through the control module 30, and controls the indicator light 38 to light up; when the water flow stops or there is no water flow, the water flow switch controls the LED ultraviolet sterilization lamp 3 to turn off through the control module 30, and controls the indicator light 38 to go out.

[0025] The device realizes the automatic control and operation status display function of the LED ultraviolet germicidal lamp 3 through an intelligent control system composed of a water flow switch, a control module 30 and an indicator light. When the user turns on the faucet and water flows through the device, the water flow switch can detect the water flow status in real time and transmit the signal to the control module 30. After receiving the signal, the control module 30 immediately starts the LED ultraviolet germicidal lamp 3 to start working, and at the same time controls the indicator light 38 to light up, intuitively giving feedback to the user that the device is performing a sterilization process. When the user turns off the faucet and the water flow stops, the water flow switch detects that there is no water flow, and then automatically turns off the LED ultraviolet germicidal lamp 3 through the control module 30, and the indicator light 38 also goes out accordingly, prompting the user that the device has stopped working.

[0026] This intelligent control design not only ensures that the device is always started when water flows through, avoiding unnecessary energy consumption and extending the service life of the LED ultraviolet germicidal lamp 3, but also enables the user to intuitively understand the working status of the device through the status display of the indicator light 38, thereby improving the convenience and safety of use.

[0027] Embodiment 3: Figure 1-Figure 9 As shown, different from the second embodiment, the water flow switch includes a temperature sensor 29, which is arranged on the heat dissipation core 8 and is used to monitor the temperature of the heat dissipation core 8 in real time; when it is detected that the temperature exceeds the preset threshold, the control module 30 controls the LED ultraviolet sterilization lamp 3 to be turned off, and when it is detected that the temperature is lower than the preset threshold, the control module 30 controls the LED ultraviolet sterilization lamp 3 to work.

[0028] The device uses the influence of water flow on the temperature of the heat sink 8 to realize the water flow detection and control function. Its working principle is: when water flows into the device, the water flowing through the inside of the protective cover 6 will take away the heat of the heat sink 8, causing the temperature of the heat sink 8 to decrease. When the temperature sensor 29 detects that the temperature is lower than the preset threshold, it means that there is water flow passing through, and the control module 30 immediately starts the LED ultraviolet germicidal lamp 3 to work. On the contrary, when there is no water flow, the temperature of the heat sink 8 will gradually increase due to the lack of water flow to take away the heat; once the temperature exceeds the preset threshold, the temperature sensor 29 feeds this information back to the control module 30, and the control module 30 immediately turns off the LED ultraviolet germicidal lamp 3.

[0029] This design using temperature change as a means of water flow detection has the following advantages: no additional mechanical water flow switch is required, the structure is simpler and more reliable, and at the same time, the water flow state can be accurately monitored to achieve automatic control of the LED ultraviolet germicidal lamp 3, which not only ensures the sterilization effect, but also avoids unnecessary energy consumption.

[0030] Embodiment 4: Figure 1-Figure 9 As shown, different from the second embodiment, the water flow switch includes a reed switch 15 and a magnetic ring 14 that moves with the water flow, the reed switch 15 is arranged in the shell cover 2, and is located near the water inlet interface 4, and is electrically connected to the control module 30, the magnetic ring 14 is arranged in the water inlet interface 4, and the water inlet interface 4 is also provided with an elastic reset member 16 for resetting the magnetic ring 14; when water flows through, the water flow pushes the magnetic ring 14 to move to a position close to the reed switch 15, and the reed switch 15 closes its contacts under the action of the magnetic field of the magnetic ring 14 and outputs a control signal to the control module 30; when the water flow stops, the elastic reset member 16 pushes the magnetic ring 14 to reset away from the reed switch 15, and the contacts of the reed switch 15 are disconnected.

[0031] The device adopts a water flow detection mechanism based on the principle of magnetic induction, and realizes accurate monitoring and control of the water flow state through the clever cooperation of the reed switch 15 and the magnetic ring 14. The specific working process is: when the water flows into the water inlet interface 4, the kinetic energy of the water flow pushes the magnetic ring 14 installed in the water inlet interface 4 to move forward until it approaches the position of the reed switch 15 installed in the shell cover 2. At this time, the magnetic field generated by the magnetic ring 14 acts on the reed switch 15, closing its contacts, and then sending a start signal to the control module 30. After receiving the signal, the control module 30 starts the LED ultraviolet sterilization lamp 3. When the user turns off the water source and the water flow stops, the elastic reset member 16 set in the water inlet interface 4 pushes the magnetic ring 14 back to the initial position, making it away from the reed switch 15. At this time, due to the disappearance of the magnetic field, the contacts of the reed switch 15 are disconnected, and the control module 30 immediately turns off the LED ultraviolet sterilization lamp 3.

[0032] This design has the following advantages: it adopts a non-contact magnetic induction detection method to avoid mechanical wear and improve the reliability and service life of the equipment; the setting of the elastic reset member 16 ensures that the magnetic ring 14 can be accurately reset, making the detection more stable and reliable, making the entire detection mechanism simple in structure and sensitive in response, and can realize real-time monitoring and rapid response control of water flow status.

[0033] Embodiment 5: Figure 1-Figure 9 As shown, different from the fourth embodiment, a valve core 17 is fixed in the water inlet interface 4, a limit ring 18 and a water outlet end cover 19 are also fixed in the water inlet interface 4, the magnetic ring 14 is sleeved on the valve core 17, the valve core 17 is located between the limit ring 18 and the water outlet end cover 19, and there is a gap between the valve core 17 and the inner wall of the water inlet interface 4, the elastic reset member 16 is connected between the magnetic ring 14 and the water outlet end cover 19, the valve core 17 includes a cylindrical body, a plurality of abutting ribs 39 arranged at one end of the body, and a plurality of ribs arranged at the other end of the body. Plate 40, multiple abutment ribs 39 are evenly fixed on one side of the main body in the circumferential direction, the end face of the abutment rib 39 contacts the limit ring 18, the side of the abutment rib 39 contacts the inner wall of the water inlet interface 4, multiple rib plates 40 are evenly fixed on the other end of the main body in the circumferential direction, and one end of the rib plate 40 abuts on the water outlet end cover 19, a first water through hole 20 is opened in the center of the water outlet end cover 19, and multiple second water through holes 21 are evenly arranged around the water through hole on the water outlet end cover 19, and the diameter of the first water through hole 20 is larger than the diameter of the second water through hole 21.

[0034] This structure utilizes the impact of the water flow and the elastic force of the elastic reset member 16 to achieve stable operation of the water flow switch, and effectively prevents the magnetic ring 14 from falling off or getting stuck, thereby enhancing the reliability and safety of the equipment.

[0035] The specific working principle is: when water flows through the water inlet interface 4, it drives the magnetic ring 14 connected to the valve core 17 to move axially. Since an elastic reset member 16 is provided between the magnetic ring 14 and the water outlet end cover 19, when the water flow stops, the elastic reset member 16 will push the magnetic ring 14 back to the initial position, and the limit ring 18 prevents the magnetic ring 14 from falling off. At the same time, the gap between the valve core 17 and the water inlet interface 4 ensures that the water can flow smoothly, avoids the friction between the magnetic ring 14 and the valve core 17, and prevents the occurrence of jamming.

[0036] This design effectively improves the stability and reliability of the water flow sensor switch, and ensures the normal operation of the LED ultraviolet sterilization lamp 3 and the indicator light, meeting the requirements of high efficiency, high safety and reliability of large-flow ultraviolet sterilization devices.

[0037] The valve core 17 adopts a cylindrical main body structure, and components with different functions are arranged at its two ends: a plurality of abutment ribs 39 at one end are evenly distributed in the circumferential direction, and the end faces of the abutment ribs 39 are in contact with the limit ring 18, and at the same time, the side surfaces of the abutment ribs 39 are in contact with the inner wall of the water inlet interface 4, thereby realizing the precise positioning and support of the valve core 17; a plurality of ribs 40 at the other end are also evenly distributed in the circumferential direction, and abut against the water outlet end cover 19, thereby ensuring the stability of the valve core 17.

[0038] The setting of the water outlet end cover 19 provides stable support for the installation of the valve core 17, ensures the accurate position of the valve core 17, and avoids the displacement deviation of the magnetic ring 14 caused by the deviation of the installation position. The setting of the first water hole 20 and the second water hole 21 ensures that the water flow can flow smoothly from the water flow gap 10, avoids the water flow blockage or accumulation inside the water outlet end cover 19, and improves the water outlet efficiency.

[0039] In this embodiment, the limit ring 18 includes an integrally formed front end portion 31 and a rear end portion 32, the front end portion 31 has a plane for installing a sealing ring, and the rear end portion 32 has a plane in contact with the abutment rib 39, and an annular bevel groove 33 is arranged on the outer peripheral surface of the limit ring 18, and the groove wall of the annular bevel groove 33 forms an inclined surface along the circumferential direction, and the inclined surface is inclined downward toward the front end portion 31, and an annular groove 34 is arranged on the inner wall of the water inlet interface 4, and the annular groove 34 corresponds to the annular bevel groove 33. The limit ring 18 is fixed in the water inlet interface 4 by a retaining spring 35 arranged between the annular bevel groove 33 and the annular groove 34, and the retaining spring 35 cooperates with the inclined surface. When the valve core 17 is forced to move outward, the limit ring 18 generates a reverse stopping force under the cooperation of the retaining spring 35 and the inclined surface to prevent the valve core 17 from separating from the water inlet interface 4.

[0040] The device realizes the reliable fixation and anti-dropping function of the valve core 17 through the limit ring 18. Specifically, the limit ring 18 adopts a structure in which the front and rear ends 32 are integrally formed, wherein the front end 31 is provided with a plane specifically used for installing the sealing ring to ensure the sealing effect. In addition, the limit ring 18 also provides supporting force. When the sealing ring is pressed, the limit ring 18 will not move inward under the support of the retaining spring 35; the rear end 32 is designed with a plane that cooperates with the abutting rib 39 of the valve core 17 to achieve stable support.

[0041] The groove wall of the annular bevel groove 33 forms a unique inclined surface, and the inclination direction is downwardly inclined toward the front end portion 31. The annular groove 34 arranged at the corresponding position on the inner wall of the water inlet interface 4 cooperates with the annular bevel groove 33, and the limit ring 18 is firmly fixed in the water inlet interface 4 by the retaining spring 35 installed therebetween. The advantage of this design is that when the water pressure or other external force causes the valve core 17 to move outward, the retaining spring 35 will generate a radial force along the inclined surface on the limit ring 18, and this radial force will be converted into a reverse axial resistance force, thereby effectively preventing the valve core 17 from detaching from the water inlet interface 4. This self-locking design, while ensuring the normal use of the device, effectively solves the safety hazard that the valve core 17 may fall off under high water pressure conditions, thereby improving the reliability and safety of the device.

[0042] Example 6: Figure 1-Figure 9 As shown, different from the fifth embodiment, a reflective lining 24 is provided inside the quartz tube 7, and the material of the reflective lining is polytetrafluoroethylene, alumina, titanium dioxide or silver. A reflective plate 36 is fixed to the bottom of the quartz tube 7, and the through hole 12 is provided on the reflective plate 36.

[0043] In the above structure, the inner wall of the quartz tube 7 uses materials with excellent reflective properties such as polytetrafluoroethylene, alumina, titanium dioxide or silver as a reflective lining. These materials can effectively reflect the ultraviolet rays emitted by the LED ultraviolet germicidal lamp 3 to prevent the ineffective loss of ultraviolet energy. At the same time, the reflective plate 36 fixed at the bottom of the quartz tube 7 not only plays a supporting role, but also can reflect the downward ultraviolet rays back into the cavity 11, and cooperate with the through hole 12 opened at the bottom to ensure that the water flow can be fully irradiated with ultraviolet rays when passing through.

[0044] This design combining the reflective lining with the reflective plate 36 creates an efficient ultraviolet reflection environment, causing the ultraviolet rays to be reflected multiple times in the cavity 11, prolonging the contact time between the ultraviolet rays and the water flow, and increasing the contact area, thereby significantly improving the sterilization efficiency. At the same time, since the utilization efficiency of ultraviolet rays is improved, the power requirement of the LED ultraviolet germicidal lamp 3 can be reduced under the same sterilization effect, which not only saves energy but also prolongs the service life of the equipment.

[0045] In this embodiment, a support ring 22 is fixed to the bottom of the housing 1 , the upper end of the support ring 22 abuts against the reflector 36 , and a plurality of notches 23 for water to flow through are evenly formed on the side wall of the support ring 22 .

[0046] The support ring 22 is fixed to the bottom of the shell 1, and its upper end is against the reflective plate 36, providing a stable support for the reflective plate 36, ensuring the installation position accuracy and use stability of the reflective plate 36. The multiple notches 23 uniformly opened circumferentially on the side wall of the support ring 22 form a regular water flow channel. This design can not only guide the water flow evenly from the water flow gap 10 between the shell 1 and the quartz tube 7 to the through hole 12, but also optimize the water flow distribution.

[0047] In this embodiment, a quartz glass plate 25 is provided at the lower end of the protective cover 6, the quartz glass plate 25 is located below the LED ultraviolet sterilization lamp 3, and a positioning ring 26 is provided between the quartz glass plate 25 and the LED ultraviolet sterilization lamp 3. A support column 27 is coaxially installed on the heat dissipation core 8, and the support column 27 contacts with the quartz glass plate 25 after passing through the LED ultraviolet sterilization lamp 3.

[0048] In the above structure, the main function of the quartz glass plate 25 is to utilize its own high ultraviolet transmittance to ensure the effective passage of ultraviolet light, and the quartz glass plate 25 effectively isolates the LED ultraviolet germicidal lamp 3 from the cavity 11 and the water flow, ensuring the safety and stability of the equipment. At the same time, this design can ensure the normal operation of the LED ultraviolet germicidal lamp 3, improve the sterilization efficiency, and provide a guarantee for efficient and reliable large-flow ultraviolet sterilization.

[0049] The positioning ring 26 can be made of high temperature resistant and corrosion resistant materials such as silicone or rubber, which not only ensures the precise alignment and firm fixation between the quartz glass plate 25 and the LED ultraviolet germicidal lamp 3, but also prevents the LED ultraviolet germicidal lamp 3 and the quartz glass plate 25 from direct contact, avoiding damage caused by pressure, thereby ensuring the stability and safety of the equipment operation.

[0050] The device adopts a hollow support column 27 design, which has the following main advantages: first, the interior of the support column 27 can be used as a wiring channel for the power cord of the LED ultraviolet germicidal lamp 3, thereby realizing the concealment and waterproofing of the wiring; second, the support column 27 provides a stable support for the quartz glass plate 25, effectively improving its ability to resist water pressure; third, the LED ultraviolet germicidal lamp 3 is fixed between the heat dissipation core 8 and the quartz glass plate 25 through the support column 27, preventing the lamp from shaking and ensuring the stability of the irradiation effect; thereby, technical problems such as waterproofing, support and fixation are well solved.

[0051] In this embodiment, a flow limiting valve 28 for adjusting the water flow is installed in the water outlet interface 5 .

[0052] A flow limiting valve 28 is installed in the water outlet interface 5. The flow limiting valve 28 is a prior art, which can not only effectively control the water flow rate to avoid the sterilization effect from being reduced due to too fast water flow, but also protect the LED ultraviolet germicidal lamp 3 and other parts of the equipment, and extend the service life of the equipment. The flow limiting valve 28 controls the area through which the water flows by adjusting the opening and closing degree of the built-in regulating valve core 17, and then accurately adjusts the water flow rate, which can not only ensure that the liquid stays in the reaction chamber for a sufficient time to receive sufficient ultraviolet radiation and improve the sterilization efficiency, but also effectively prevent the water flow from causing impact and damage to the LED ultraviolet germicidal lamp 3, and protect the equipment.

[0053] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A high-efficiency ultraviolet water disinfection and sterilization device, comprising a housing, a housing cover and an LED ultraviolet sterilization lamp, wherein the housing cover is detachably connected to the housing, and the housing cover has a water inlet interface and a water outlet interface, characterized in that: It also includes a protective cover, a quartz tube and a heat dissipation core. A sleeve is arranged in the shell cover. The quartz tube is fixed in the shell. The upper end of the quartz tube is fixed to the sleeve, and a water flow gap connected to the water inlet interface is formed between the quartz tube and the inner wall of the shell. The quartz tube also has a cavity for irradiation by the LED ultraviolet germicidal lamp. A through hole connecting the water flow gap and the cavity is opened at the bottom of the quartz tube. The protective cover is fixed in the shell cover and is located on the inner side of the sleeve. A plurality of flow holes connected to the cavity are opened on the side wall of the protective cover. The heat dissipation core and the LED ultraviolet germicidal lamp are fixed in the protective cover, and a heat conductive sheet is arranged between the heat dissipation core and the LED ultraviolet germicidal lamp. The water outlet interface is fixed to the upper end of the sleeve.

2. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 1, characterized in that: It also includes a water flow switch for controlling the opening and closing of the LED ultraviolet sterilization lamp. The water flow switch controls the opening and closing of the LED ultraviolet sterilization lamp through a control module. The control module is also electrically connected to an indicator light, and the indicator light is fixed in the shell cover. When water flows through, the water flow switch controls the LED ultraviolet sterilization lamp to start through the control module, and controls the indicator light to light up. When the water flow stops or there is no water flow, the water flow switch controls the LED ultraviolet sterilization lamp to turn off through the control module, and controls the indicator light to go out.

3. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 2, characterized in that: The water flow switch includes a temperature sensor, which is arranged on the heat dissipation core and is used to monitor the temperature of the heat dissipation core in real time; when it is detected that the temperature exceeds a preset threshold, the LED ultraviolet sterilization lamp is controlled to be turned off through the control module, and when it is detected that the temperature is lower than the preset threshold, the LED ultraviolet sterilization lamp is controlled to work through the control module.

4. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 2, characterized in that: The water flow switch comprises a reed switch and a magnetic ring that moves with the water flow, wherein the reed switch is arranged in the housing cover and is located near the water inlet interface and is electrically connected to the control module, wherein the magnetic ring is arranged in the water inlet interface and the water inlet interface is also provided with an elastic reset member for resetting the magnetic ring; when water flows through, the water flow pushes the magnetic ring to move to a position close to the reed switch, and the reed switch closes its contacts under the magnetic field of the magnetic ring and outputs a control signal to the control module; When the water flow stops, the elastic reset member pushes the magnetic ring to reset away from the reed switch, and the reed switch contacts are disconnected.

5. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 4, characterized in that: A valve core is fixed in the water inlet interface, a limit ring and a water outlet end cover are also fixed in the water inlet interface, the magnetic ring is sleeved on the valve core, the valve core is located between the limit ring and the water outlet end cover, and a gap is provided between the valve core and the inner wall of the water inlet interface, the elastic reset member is connected between the magnetic ring and the water outlet end cover, the valve core comprises a cylindrical body, a plurality of abutting ribs arranged at one end of the body and a plurality of ribs arranged at the other end of the body, a plurality of the abutting ribs are uniformly fixed on one side of the body in a circumferential direction, an end face of the abutting ribs contacts the limit ring, a side face of the abutting ribs contacts the inner wall of the water inlet interface, a plurality of the ribs are uniformly fixed on the other end of the body in a circumferential direction, and one end of the ribs abuts on the water outlet end cover, a first water through hole is provided at the center of the water outlet end cover, a plurality of second water through holes are uniformly arranged around the water through hole on the water outlet end cover, and the diameter of the first water through hole is greater than the diameter of the second water through hole.

6. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 5, characterized in that: The limiting ring includes an integrally formed front end and a rear end, the front end having a plane for installing a sealing ring, the rear end having a plane in contact with the abutting rib, an annular bevel groove is arranged on the outer circumferential surface of the limiting ring, the groove wall of the annular bevel groove forms an inclined surface along the circumferential direction, and the inclined surface is inclined downward toward the front end, an annular groove is arranged on the inner wall of the water inlet interface, and the annular groove corresponds to the annular bevel groove, the limiting ring is fixed in the water inlet interface by a retaining spring arranged between the annular bevel groove and the annular groove, and the retaining spring cooperates with the inclined surface, when the valve core is forced to move outward, the limiting ring generates a reverse stopping force under the cooperation of the retaining spring and the inclined surface to prevent the valve core from separating from the water inlet interface.

7. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 1, characterized in that: A reflective lining is arranged inside the quartz tube, and the material of the reflective lining is polytetrafluoroethylene, alumina, titanium dioxide or silver. A reflective plate is fixed to the bottom of the quartz tube, and the through hole is arranged on the reflective plate.

8. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 7, characterized in that: A support ring is fixed at the bottom of the shell, the upper end of the support ring is against the reflector, and a plurality of notches for water to flow through are evenly opened on the side wall of the support ring in a circumferential direction.

9. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 1, characterized in that: A quartz glass plate is provided at the lower end of the protective cover, the quartz glass plate is located below the LED ultraviolet germicidal lamp, and a positioning ring is provided between the quartz glass plate and the LED ultraviolet germicidal lamp. A support column is coaxially installed on the heat dissipation core, and the support column contacts the quartz glass plate after passing through the LED ultraviolet germicidal lamp.

10. A high-efficiency ultraviolet water disinfection and sterilization device according to claim 1, characterized in that: A flow limiting valve for adjusting the water flow is installed in the water outlet interface.

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