A new mercury-free ultraviolet sterilizer
By adopting an LED ultraviolet lamp tube and a conical spring base design, the pollution problem of mercury lamps is solved, realizing a safe and reliable mercury-free sterilizer, improving the disinfection effect and the service life of the lamp strip, and ensuring the stability and sealing of the installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU WELGO ENVIRONMENGTAL EQUIP CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-12
AI Technical Summary
Existing ultraviolet sterilizers using mercury lamps are polluting and pose a hazard in drinking water treatment, necessitating a safer and more reliable alternative.
Using LED ultraviolet lamps as mercury-free lamps, combined with a conical spring base and a sealed design, the ultraviolet lamps can be detachably installed. The uniform distribution of the lamp strips and the cross-shaped snap-fit structure improve the uniformity of irradiation and heat dissipation.
It achieves the safety and reliability of mercury-free sterilizers, improves disinfection effect and the lifespan of LED strips, while avoiding water leakage and ensuring installation stability.
Smart Images

Figure CN224350433U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water sterilization and treatment equipment technology, and in particular to a novel mercury-free ultraviolet sterilizer. Background Technology
[0002] Water sterilization equipment is widely used in various water treatment processes to ensure that water quality meets hygiene and safety standards and to prevent pathogenic microorganisms in the water source from threatening human health. Common equipment includes ultraviolet sterilization, ozone sterilization, chlorination sterilization, and electrolysis sterilization. Each type of equipment has its unique advantages and limitations in terms of sterilization effect, ease of use, cost, and environmental friendliness.
[0003] Ultraviolet (UV) sterilization equipment is a common type of water sterilization equipment. It uses UV light sources to irradiate microorganisms in the water, destroying their DNA or RNA and inhibiting their reproduction and growth, thereby achieving sterilization.
[0004] However, existing ultraviolet sterilizers all use mercury lamps, which generate ultraviolet light for sterilization. Mercury lamps are polluting and pose a certain hazard when used in drinking water. Therefore, further improvements are needed. Utility Model Content
[0005] In order to further improve the safety and reliability of ultraviolet sterilization equipment, this application provides a novel mercury-free ultraviolet sterilizer.
[0006] The novel mercury-free ultraviolet sterilizer provided in this application adopts the following technical solution:
[0007] A novel mercury-free ultraviolet sterilizer includes a cavity tube and an ultraviolet lamp tube installed inside the cavity tube; the cavity tube has an inlet and an outlet; the ultraviolet lamp tube is an LED ultraviolet lamp, and the ultraviolet lamp tube is installed in the middle of the cavity tube.
[0008] By adopting the above technical solution, during operation, the inlet and outlet pipes are connected to the inlet and outlet of the cavity, respectively. Water enters the equipment through the inlet and, under the irradiation of the ultraviolet lamp, remains for a few seconds to kill a large number of bacteria, thus ensuring more thorough disinfection. After sterilization, the water is discharged through the outlet. In this application, the ultraviolet lamp is an LED ultraviolet lamp, which is mercury-free, making it safer and more reliable during use.
[0009] Optionally, one end of the cavity tube is provided with an installation port, and a spring base is fixedly installed inside the other end of the cavity tube. The spring base is arranged opposite to the installation port. After the ultraviolet lamp is inserted into the cavity tube through the installation port, it is supported by the spring base. An end cap is detachably installed on the installation port. After the end cap is installed, it is pressed against the other end of the ultraviolet lamp tube away from the spring base.
[0010] By adopting the above technical solution, during installation, the UV lamp is inserted into the cavity tube through the installation port, and supported by the spring base. Then, the end cap is installed, pressing the end cap against the other end of the UV lamp, so that the end cap and spring base clamp the two ends of the UV lamp, thereby achieving detachable installation of the UV lamp, which facilitates disassembly and replacement in case of UV lamp failure.
[0011] Optionally, the end cap is a sealing nut, and the cavity tube has a threaded joint at the installation port position. The end cap is threadedly connected to the installation port of the cavity tube through the threaded joint.
[0012] By adopting the above technical solution, during installation, the end cap is gradually screwed in and tightened. During this process, the end cap gradually presses the ultraviolet lamp tube inward to cooperate with the spring base on the other side, thereby clamping and installing the ultraviolet lamp tube.
[0013] Optionally, the spring base is a conical spring, and the small end of the spring base is fixedly connected to the inside of the cavity tube, the large end of the spring base faces the mounting port, and the ultraviolet lamp is inserted and pressed into the large end of the spring base.
[0014] By adopting the above technical solution, the spring base is a conical spring. After the ultraviolet lamp is installed, the ultraviolet lamp is inserted and pressed into the large end of the spring base, which facilitates the installation and positioning of the ultraviolet lamp. At the same time, it is not easy for it to move after installation, which can further ensure its installation stability.
[0015] Optionally, the ultraviolet lamp tube includes a sleeve and a light strip installed inside the sleeve. The sleeve is a transparent tube, and the light strips are arranged circumferentially and evenly around the sleeve. Multiple light strips are supported and connected by light strip brackets.
[0016] By adopting the above technical solution, during operation, the LED strip inside the sleeve irradiates and sterilizes the water in the cavity tube after passing through the sleeve. During this process, due to the uniform arrangement of the LED strip, the irradiation effect is relatively uniform, resulting in better disinfection. Simultaneously, this arrangement brings the LED beads closer to the sleeve wall, improving heat dissipation and thus extending the lifespan of the LED strip.
[0017] Optionally, the number of light strips is four.
[0018] By adopting the above technical solution, the design of four light strips ensures that each light strip corresponds to a 90° direction, resulting in a more uniform and effective disinfection effect.
[0019] Optionally, the light strip bracket is a cross bracket, and the back side of the light strip is formed with a slot. The slots are arranged at intervals along the length of the light strip, and each slot extends through the width of the light strip. Multiple light strips are connected to the light strip bracket by their slots.
[0020] By adopting the above technical solution, the light strips inside the sleeve are connected by a cross-shaped snap-fit between the light strip and the light strip bracket through the slots on the light strip, which facilitates the installation and assembly of the light strips.
[0021] Optionally, a sealing ring is installed between the end cap and the threaded joint.
[0022] By adopting the above technical solution and installing a sealing ring between the end cap and the threaded joint, the sealing performance at this location can be further improved, making it less prone to leakage.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. In this application, the ultraviolet lamp is an LED ultraviolet lamp, which is mercury-free and therefore safer and more reliable during use;
[0025] 2. The uniform arrangement of the LED strips results in more even illumination and better disinfection. Simultaneously, this arrangement brings the LED chips closer to the sleeve wall, improving heat dissipation and extending the lifespan of the LED strips.
[0026] 3. The spring base is a conical spring. After the UV lamp is installed, the UV lamp is inserted and pressed into the large end of the spring base, which facilitates the installation and positioning of the UV lamp. At the same time, it is not easy for it to move after installation, which can further ensure its installation stability. Attached Figure Description
[0027] Figure 1 This is a cross-sectional schematic diagram of a novel mercury-free ultraviolet sterilizer according to this application.
[0028] Figure 2 This is a cross-sectional schematic diagram of the lumen portion in this application.
[0029] Figure 3 This is a schematic diagram of the end cap structure in this application.
[0030] Figure 4 This is an axial cross-sectional view of the ultraviolet lamp section in this application.
[0031] Figure 5 This is a radial cross-sectional view of the ultraviolet lamp section in this application.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Cavity tube; 11. Inlet; 12. Outlet; 13. Mounting port; 14. Threaded connector; 2. UV lamp tube; 21. Sleeve; 22. Lamp strip; 221. Slot; 23. Lamp strip bracket; 3. Spring base; 4. End cap; 5. Sealing ring. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0035] This application discloses a novel mercury-free ultraviolet sterilizer.
[0036] Reference Figure 1 A novel mercury-free ultraviolet sterilizer includes a cavity tube 1 and an ultraviolet lamp tube 2 installed inside the cavity tube 1. The cavity tube 1 has an inlet 11 and an outlet 12 for water intake and drainage. The ultraviolet lamp tube 2 is an LED ultraviolet lamp and is installed in the middle of the cavity tube 1. During operation, the inlet and outlet pipes are connected to the inlet 11 and outlet 12 in the cavity tube 1, respectively. Water enters the device through the inlet 11 and, under the irradiation of the ultraviolet lamp tube 2, remains for a few seconds to kill a large number of bacteria, ensuring thorough disinfection. After sterilization, the water is discharged through the outlet 12.
[0037] Reference Figure 1 and Figure 2 Specifically, in this embodiment, one end of the cavity tube 1 has an installation port 13, and the other end of the cavity tube 1 has a spring base 3 fixedly installed inside, with the spring base 3 positioned opposite to the installation port 13. After the ultraviolet lamp tube 2 is inserted into the cavity tube 1 through the installation port 13, it is supported by the spring base 3. An end cap 4 is detachably installed on the installation port 13, and after the end cap 4 is installed, it is pressed against the other end of the ultraviolet lamp tube 2 away from the spring base 3, so that the two ends of the ultraviolet lamp tube 2 are clamped and installed by the end cap 4 and the spring base 3, so as to realize the detachable installation of the ultraviolet lamp tube 2, which is convenient for disassembly and replacement in case of failure of the ultraviolet lamp tube 2.
[0038] Reference Figure 1 , 2 3. Specifically, in this embodiment, the end cap 4 is a sealing nut, and the cavity tube 1 has a threaded joint 14 formed at the mounting port 13. The end cap 4 is threadedly connected to the mounting port 13 of the cavity tube 1 through the threaded joint 14 to form a threaded connection. During installation, the end cap 4 is gradually screwed in and tightened. In this process, the end cap 4 gradually presses the ultraviolet lamp tube 2 inward to cooperate with the spring base 3 on the other side and clamp the ultraviolet lamp tube 2.
[0039] Reference Figure 1 and Figure 2In this embodiment, a sealing ring 5 is also installed between the end cap 4 and the threaded connector 14. When the end cap 4 is screwed in and tightened, the sealing ring 5 further seals the end cap 4 and the threaded connector 14, which can further improve the sealing performance at this location and make it less prone to water leakage.
[0040] Reference Figure 1 In this embodiment, the spring base 3 is a conical spring, and the small end of the spring base 3 is fixedly connected to the inside of the cavity tube 1. The large end of the spring base 3 faces the mounting port 13, and the ultraviolet lamp tube 2 is inserted and pressed into the large end of the spring base 3. After the ultraviolet lamp tube 2 is installed, since the ultraviolet lamp tube 2 is inserted and pressed into the large end of the spring base 3, it is convenient to install and position the ultraviolet lamp tube 2. At the same time, after its installation, it is not easy to move, which can further ensure its installation stability.
[0041] Reference Figure 4 and Figure 5 Specifically, in this embodiment, the ultraviolet lamp tube 2 includes a sleeve 21 and a light strip 22 installed inside the sleeve 21. The sleeve 21 is a transparent tube; in this embodiment, the sleeve 21 is a quartz glass tube. The light strips 22 are arranged circumferentially and evenly around the sleeve 21, and multiple light strips 22 are supported and combined by a light strip bracket 23. During operation, the light strips 22 inside the sleeve 21 irradiate and sterilize the water in the cavity tube 1 after passing through the sleeve 21. In this process, due to the even arrangement of the light strips 22, the irradiation effect is relatively uniform, and the disinfection effect is good. At the same time, this arrangement makes the lamp beads in the light strip 22 closer to the wall of the sleeve 21, resulting in better heat dissipation and thus extending the service life of the light strip 22.
[0042] In other embodiments, the sleeve 21 can be a transparent tube such as an acrylic plastic tube.
[0043] Reference Figure 4 and 5 In this embodiment, there are four light strips 22. Correspondingly, the light strip bracket 23 is a cross bracket. The back side of the light strip 22 is formed with a slot 221. The slots 221 are arranged at intervals along the length direction of the light strip 22. Each slot 221 extends through the width direction of the light strip 22. Multiple light strips 22 are connected to the light strip bracket 23 through their slots 221.
[0044] On the one hand, the cross-shaped even arrangement of the four light strips 22 ensures that each light strip 22 corresponds to a 90° direction, resulting in a more uniform and effective disinfection. On the other hand, the light strips 22 within the sleeve 21 are connected to the light strip bracket 23 via slots 221 on the light strips, forming a cross-shaped snap-fit installation, which facilitates the installation and assembly of the light strips 22.
[0045] In other embodiments, the number of light strips 22 can be three, five, or other similar quantities.
[0046] The implementation principle of a novel mercury-free ultraviolet sterilizer in this application embodiment is as follows: During operation, the inlet pipe and outlet pipe are connected to the inlet 11 and outlet 12 in the cavity tube 1, respectively. Water enters the device through the inlet 11 and stays briefly under the irradiation of the ultraviolet lamp tube 2 for a few seconds to kill a large number of bacteria, so that the water is more thoroughly disinfected. After sterilization is completed, it can be discharged through the outlet 12.
[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A novel mercury-free ultraviolet sterilizer, characterized in that: It includes a cavity tube (1) and an ultraviolet lamp tube (2) installed inside the cavity tube (1); the cavity tube (1) is provided with an inlet (11) and an outlet (12); the ultraviolet lamp tube (2) is an LED ultraviolet lamp, and the ultraviolet lamp tube (2) is installed in the middle of the cavity tube (1).
2. The novel mercury-free ultraviolet sterilizer according to claim 1, characterized in that: One end of the cavity tube (1) is provided with an installation port (13), and a spring base (3) is fixedly installed inside the other end of the cavity tube (1). The spring base (3) is arranged opposite to the installation port (13). After the ultraviolet lamp tube (2) is inserted into the cavity tube (1) through the installation port (13), it is supported by the spring base (3). An end cap (4) is detachably installed on the installation port (13). After the end cap (4) is installed, it is pressed tightly against the other end of the ultraviolet lamp tube (2) away from the spring base (3).
3. The novel mercury-free ultraviolet sterilizer according to claim 2, characterized in that: The end cap (4) is a sealing nut. The cavity tube (1) has a threaded joint (14) formed at the mounting port (13). The end cap (4) is threadedly connected to the mounting port (13) of the cavity tube (1) through the threaded joint (14).
4. The novel mercury-free ultraviolet sterilizer according to claim 2, characterized in that: The spring base (3) is a conical spring, and the small end of the spring base (3) is fixedly connected to the inside of the cavity tube (1). The large end of the spring base (3) faces the mounting port (13), and the ultraviolet lamp tube (2) is inserted and pressed into the large end of the spring base (3).
5. The novel mercury-free ultraviolet sterilizer according to claim 1, characterized in that: The ultraviolet lamp tube (2) includes a sleeve (21) and a lamp strip (22) installed in the sleeve (21). The sleeve (21) is a transparent tube. The lamp strip (22) is evenly arranged around the sleeve (21) in a circumferential direction, and multiple lamp strips (22) are supported and connected by a lamp strip bracket (23).
6. A novel mercury-free ultraviolet sterilizer according to claim 5, characterized in that: The number of light strips (22) is four.
7. A novel mercury-free ultraviolet sterilizer according to claim 6, characterized in that: The light strip bracket (23) is a cross bracket. The back side of the light strip (22) is formed with a slot (221). The slots (221) are arranged at intervals along the length of the light strip (22). Each slot (221) extends through the width of the light strip (22). Multiple light strips (22) are connected to the light strip bracket (23) through their slots (221).
8. A novel mercury-free ultraviolet sterilizer according to claim 3, characterized in that: A sealing ring (5) is installed between the end cap (4) and the threaded joint (14).