A UV sterilizer with self-cleaning function

Abstract

The present application discloses an ultraviolet sterilizer with a self-cleaning function, which relates to the field of liquid sterilization technology, including a cleaning component, an axial drive component, a sliding block and a tube body. A plurality of lamp tubes each provided with a first sleeve are arranged in parallel in a liquid flow cavity. The driving part of the axial drive component is arranged along the axial direction of the liquid flow cavity, and a second sleeve is provided on the outer side of the driving part. The sliding block is provided with magnetism. The cleaning component includes a cleaning ring and a magnetic ring that are integrated into one body. The magnetic ring is slidably sleeved on the second sleeve. The advantage of the present invention is that the cleaning component is magnetically driven by the magnetic sliding block to act on the outer sleeve of the lamp tube, thereby achieving regular cleaning of the outer sleeve of the lamp tube and ensuring the sterilization effect; the operation time of the cleaning component is adjusted according to the intensity of the ultraviolet rays in the liquid flow cavity by the ultraviolet probe; the first magnetic ring is provided at both ends of the second magnetic ring, and the stability of the axial movement of the cleaning component is improved by the magnetic repulsion on both sides.

Description

Technical Field

[0001] This application relates to the field of liquid sterilization technology, and in particular to an ultraviolet sterilizer with a self-cleaning function. Background Technology

[0002] Ultraviolet (UV) sterilization water treatment equipment for secondary water supply systems is a common type of water treatment equipment. It utilizes ultraviolet light to sterilize bacteria, viruses, and other microorganisms in water. The equipment typically consists of a UV lamp and a reactor. When water passes through the reactor, it is irradiated by UV light, which destroys the DNA molecules of microorganisms, rendering them unable to grow and reproduce, thus achieving sterilization. This equipment has advantages such as simple operation, energy saving, environmental friendliness, and no need for chemical agents. It can effectively kill various microorganisms in water, such as Escherichia coli, Staphylococcus aureus, Campylobacter, mold, and viruses. Furthermore, UV sterilization does not alter the taste, odor, or color of the water, nor does it produce any side effects or harmful substances. It is suitable for various applications in secondary water supply systems, including drinking water, swimming pools, hot springs, sewage treatment, and industrial water.

[0003] Long-term use of ultraviolet lamps can lead to the formation of scale due to the deposition of ions, minerals, and other substances in the water. This scale adheres to the surface of the lamps, affecting the transmission and irradiation of ultraviolet light, thus reducing the quality and efficiency of sterilization. To ensure the normal operation and sterilization effect of ultraviolet sterilization equipment, it is necessary to clean the scale on the lamps regularly. However, manual disassembly and cleaning is time-consuming and labor-intensive. Therefore, there is an urgent need for an ultraviolet sterilizer that can perform fully automatic lamp cleaning. Summary of the Invention

[0004] This invention relates to a self-cleaning ultraviolet sterilizer, and the specific embodiments of this invention that solve the above problems are as follows:

[0005] A self-cleaning ultraviolet sterilizer includes:

[0006] The tube body has a built-in liquid flow chamber, and several lamp tubes with first sleeves are arranged side by side in the liquid flow chamber. Each first sleeve is evenly distributed at equal intervals along the circumference of the tube body.

[0007] An axial drive assembly and a sliding block slidably connected to the axial drive assembly, wherein the drive part of the axial drive assembly is arranged along the axial direction of the liquid flow chamber, and a second sleeve is sleeved on the outside of the drive part, and the sliding block is magnetic.

[0008] The cleaning assembly includes an integral cleaning ring and a magnetic ring. The magnetic ring is slidably sleeved on the second sleeve. The sliding block drives the magnetic ring to move axially, during which the cleaning ring acts on each of the first sleeves.

[0009] Optionally, it also includes a controller, a temperature probe, and an ultraviolet probe for detecting ultraviolet intensity. The probe ends of both the temperature probe and the ultraviolet probe extend into the liquid flow chamber. The signal input terminal of the controller is electrically connected to the temperature probe and the ultraviolet probe, and its signal output terminal is electrically connected to the motor and the lamp.

[0010] Based on the above technical solution, the water temperature and ultraviolet intensity are detected by temperature probe and ultraviolet probe. When the ultraviolet intensity drops to the trigger value, the axial drive component is triggered to move. The magnetic sliding block moves axially and drives the cleaning component along the length of the second sleeve through the magnetic effect. Thus, the cleaning ring cleans the first sleeve until the ultraviolet intensity recovers.

[0011] Optionally, the number of cleaning rings is the same as the number of the first sleeve, and each cleaning ring is connected to the magnetic ring by a connecting ring. The cleaning ring includes a fixing ring, and a soft cleaning ring is provided on the inner side of the fixing ring.

[0012] Optionally, the diameter of the soft cleaning ring is smaller than the outer diameter of the first sleeve. When the cleaning ring moves axially, the soft cleaning ring scrapes the outer surface of the first sleeve in an inclined conical shape.

[0013] Based on the above technical solution, the soft cleaning ring cleans the outer surface of the first sleeve through interference fit and axial movement. The soft cleaning ring can be made of silicone or fluororubber.

[0014] Optionally, the sliding block includes a mounting ring, with a first magnetic ring, a second magnetic ring, and a third magnetic ring sequentially connected axially to the end of the mounting ring. The magnetic properties of the second magnetic ring are opposite to those of the first magnetic ring, while the magnetic properties of the first magnetic ring are the same as those of the first magnetic ring.

[0015] Optionally, the tube body is cylindrical with sealed end faces at both ends, and each end face has an inlet and an outlet. The ends of the first sleeve and the second sleeve are both abutted against the end face of the tube body. Both are structures that are not connected to the liquid flow chamber internally, and each has an opening on one end face for the lamp tube and the drive part of the axial drive assembly to be introduced.

[0016] Optionally, the axial drive assembly includes a lead screw and a limiting rod, which are arranged side by side in the second sleeve. The lead screw is connected to the power output end of the motor and is screwed to the mounting ring. The limiting rod is axially slidably connected to the mounting ring.

[0017] Based on the above technical solution, the second sleeve is specifically a stainless steel tube. The magnetism of the sliding block can pass through the stainless steel tube and act on the magnetic ring. Stainless steel is a material composed of iron, chromium, and other alloying elements, and has high magnetic permeability. Because stainless steel contains iron, it will respond to a certain magnetic field. When a magnetic field acts on stainless steel, magnetic lines of force can pass through the surface of the stainless steel and be transmitted within the material. However, the influence of stainless steel on magnetism depends on its composition and processing method.

[0018] Optionally, the first sleeve is made of transparent material, and the ultraviolet rays emitted by the lamp tube pass radially through the first sleeve and act on the liquid flow chamber.

[0019] Based on the above technical solutions, the first sleeve is specifically a hollow quartz sleeve, which is a tubular component made of quartz material. Quartz is a material with excellent thermal stability, chemical stability and transparency, and it has thermal stability and chemical inertness.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. This invention uses a closed-loop magnetic sliding block driven by an axial drive component. The magnetic sliding block magnetically drives the cleaning component of the lamp tube outer sleeve, thereby achieving regular cleaning of the lamp tube outer sleeve and ensuring the sterilization effect.

[0022] 2. This invention further improves cleaning efficiency by setting up an ultraviolet probe and using a controller to adjust the running time of the cleaning component according to the intensity of ultraviolet light in the liquid flow chamber.

[0023] 3. The present invention has a simple structure. First magnetic rings are set at both ends of the second magnetic ring, and the stability of the axial movement of the cleaning component is improved by the magnetic repulsion force on both sides. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-section of the structure of the present invention. Figure 1 ;

[0026] Figure 3 This is a cross-section of the structure of the present invention. Figure 2 ;

[0027] Figure 4 This is a cross-sectional view of the sleeve and cleaning component structure in this invention;

[0028] Figure 5 This is a schematic diagram of the structure of the axial drive assembly and the cleaning assembly in this invention;

[0029] Figure 6This is a cross-sectional view of the structure of the axial drive assembly and the cleaning assembly in this invention;

[0030] Figure 7 This is an exploded structural diagram of the cleaning component and sliding block in this invention;

[0031] Figure 8 This is a cross-sectional view of the cleaning component and sliding block structure in this invention;

[0032] Figure 9 This is a cross-sectional view of the cleaning component and sliding block relative to the second sleeve after the explosion in this invention;

[0033] Figure 10 This is the electrical schematic diagram of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Tube body, 2. Controller, 3. Lamp tube, 4. Axial drive assembly, 5. Temperature probe, 6. Ultraviolet probe, 7. First sleeve, 8. Cleaning assembly, 9. Sliding block, 10. Second sleeve, 101. Liquid inlet, 102. Liquid outlet, 103. Liquid flow chamber, 401. Motor, 402. Lead screw, 403. Limiting rod, 801. Connecting ring, 802. Cleaning ring, 803. Magnetic ring, 8021. Soft cleaning ring, 8022. Fixing ring, 901. First magnetic ring, 902. Second magnetic ring, 903. Mounting ring. Detailed Implementation

[0036] The specific embodiments of the present invention are described below with reference to the accompanying drawings and examples:

[0037] It should be noted that the structures, proportions, sizes, etc. illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0038] Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0039] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0040] This application discloses an ultraviolet sterilizer with a self-cleaning function.

[0041] Example 1

[0042] Reference Figures 1 to 10 This embodiment discloses a self-cleaning ultraviolet sterilizer, including an axial drive assembly 4, a sliding block 9, a cleaning assembly 8, and a tube body 1. The tube body 1 has a built-in liquid flow chamber 103, within which four lamp tubes 3, each fitted with a first sleeve 7, are arranged side-by-side. The first sleeves 7 are evenly spaced along the circumference of the tube body 1. The sliding block 9 is slidably connected to the drive assembly 4. The drive portion of the axial drive assembly 4 is arranged along the axial direction of the liquid flow chamber 103, and a second sleeve 10 is fitted around the drive portion. The cleaning component 8 includes a cleaning ring 802 and a magnetic ring 803 integrated together. The magnetic ring 803 is slidably sleeved on the second sleeve 10. In this structure, the sliding block 9 includes a mounting ring 903. The end of the mounting ring 903 is connected to the second magnetic ring 902, and the magnetism of the second magnetic ring 902 is opposite to that of the magnetic ring 803. The sliding block 9 moves axially and uses the magnetism of the second magnetic ring 902 to drive the magnetic ring 803 to move. During this period, the cleaning ring 802 acts on each of the first sleeves 7. The axial drive component 4 is activated at regular intervals.

[0043] The number of cleaning rings 802 is the same as the number of first sleeves 7, and each cleaning ring 802 is connected to the magnetic ring 803 by a connecting ring 801. In this structure, the cleaning ring 802 includes a fixing ring 8022. A soft cleaning ring 8021 is provided inside the fixing ring 8022. The diameter of the soft cleaning ring 8021 is smaller than the outer diameter of the first sleeve 7. When the cleaning ring 802 moves axially, the soft cleaning ring 8021 scrapes the outer surface of the first sleeve 7 in an inclined cone shape. The first sleeve 7 is made of transparent material. The ultraviolet rays emitted by the lamp tube 3 pass radially through the first sleeve 7 and act on the liquid flow cavity 103.

[0044] The tube body 1 is cylindrical with sealed end faces at both ends. It has an inlet 101 and an outlet 102 on each end face. In this structure, the ends of the first sleeve 7 and the second sleeve 10 are both abutted against the end face of the tube body 1. Both are structures that are not connected to the liquid flow chamber 103 internally. Both have an opening on one end face for the lamp tube 3 and the drive part of the axial drive assembly 4 to be introduced.

[0045] The axial drive assembly 4 includes a lead screw 402 and a limiting rod 403, which are arranged side by side inside the second sleeve 10. The lead screw 402 is connected to the power output end of the motor 401 and is threaded to the mounting ring 903. The limiting rod 403 is axially slidably connected to the mounting ring 903. In this structure, the axial drive assembly 4 can be replaced by a cylinder-type structure in addition to the motor-driven lead screw structure. The limiting rod 403 can also be omitted. Corresponding concave and convex structures are opened on the inner side of the second sleeve 10 along the length direction and on the sliding block 9 along the length direction to prevent the sliding block 9 from rotating synchronously with the lead screw 402, so that the sliding block 9 translates along the direction of the lead screw 402.

[0046] The specific implementation process is as follows: the lamp tube 3 is turned on, and the water is introduced into the liquid flow chamber 103 through the inlet 101 and discharged from the liquid flow chamber 103 through the outlet 102. The water flow is generally N-shaped and self-flowing. The lamp tube 3 performs radial ultraviolet sterilization on the direct flow section of the water flow. During this period, the motor 401 is started periodically and controls the lead screw 402 to rotate. The mounting ring 903 and the second magnetic ring 902 move along the direction of the lead screw 402. At the same time, the second magnetic ring 902 magnetically attracts the magnetic ring 803 outside the second sleeve 10. Then, the magnetic ring 803 and the cleaning ring 802 move along the direction of the first sleeve 7 and clean the first sleeve 7. After cleaning is completed, the sliding block 9 and the cleaning component 8 are reset.

[0047] Example 2

[0048] Reference Figures 7 to 8 Based on Embodiment 1, this embodiment discloses an ultraviolet sterilizer with a self-cleaning function. The sliding block 9 also includes a first magnetic ring 901. The first magnetic ring 901, the second magnetic ring 902 and the first magnetic ring 901 are connected axially to the end of the mounting ring 903 in sequence. In this structure, the magnetism of the first magnetic ring 901 is the same as that of the magnetic ring 803. During axial movement, the first magnetic rings 901 on both sides generate a repulsive force on the magnetic ring 803, thereby maintaining the vertical stability of the magnetic ring 803 during axial movement.

[0049] Example 3

[0050] Reference Figure 1 and Figure 10Based on the above embodiments, this embodiment discloses an ultraviolet sterilizer with a self-cleaning function, which also includes a controller 2, a temperature probe 5, and an ultraviolet probe 6 for detecting ultraviolet intensity. The probe ends of the temperature probe 5 and the ultraviolet probe 6 are both inserted into the liquid flow chamber 103. In this structure, the signal input terminal of the controller 2 is electrically connected to the temperature probe 5 and the ultraviolet probe 6, and its signal output terminal is electrically connected to the motor 401 and the lamp tube 3. By detecting the ultraviolet intensity in the liquid flow chamber 103, a trigger signal for the operation of the axial drive assembly 4 is obtained. There can be one ultraviolet probe 6 or several ultraviolet probes can be provided along the length of the liquid flow chamber 103.

[0051] Example 4

[0052] Reference Figure 1 and Figure 9 Based on Embodiment 3, this embodiment discloses an ultraviolet sterilizer with a self-cleaning function. An ultraviolet probe 6 is provided and integrated on a sliding block 9. In this structure, the motor 401 is turned on periodically, moving the ultraviolet probe 6 axially to detect the ultraviolet intensity in the length direction. The controller 2 records the ultraviolet intensity curve on the straight line segment. Subsequently, the motor 401 reverses, and the cleaning ring 802 cleans the first sleeve 7 and reciprocates cleaning the low point of the curve according to the ultraviolet intensity curve.

[0053] Example 5

[0054] Reference Figure 7 and Figure 8 Based on Embodiment 2, this embodiment discloses an ultraviolet sterilizer with a self-cleaning function. The first magnetic ring 901 and the second magnetic ring 902 are both set as electromagnets. The first magnetic ring 901 is set as a Hall element with non-contact sensing function and is connected to the controller 2. In this structure, when the second magnetic ring 902 drives the cleaning component 8 to move magnetically, if the cleaning component 8 stops due to jamming, the Hall element is triggered and transmits a signal to the controller 2. The controller 2 notifies the maintenance personnel to carry out timely maintenance to avoid the phenomenon of no-load.

[0055] Many other changes and modifications can be made without departing from the concept and scope of this invention. It should be understood that this invention is not limited to the specific embodiments, and the scope of this invention is defined by the appended claims.

Claims

1. A self-cleaning ultraviolet sterilizer, characterized in that, include: The tube body (1) has a built-in liquid flow chamber (103). Several lamp tubes (3) with first sleeves (7) are arranged in parallel in the liquid flow chamber (103). Each first sleeve (7) is evenly distributed at equal intervals along the circumference of the tube body (1). An axial drive assembly (4) and a sliding block (9) slidably connected to the axial drive assembly (4), wherein the drive part of the axial drive assembly (4) is arranged along the axial direction of the liquid flow cavity (103), and a second sleeve (10) is sleeved on the outside of the drive part, and the sliding block (9) is magnetic. The cleaning assembly (8) includes a cleaning ring (802) and a magnetic ring (803) integrated together. The magnetic ring (803) is slidably sleeved on the second sleeve (10). The sliding block (9) drives the magnetic ring (803) to move axially through magnetic drive. During this period, the cleaning ring (802) acts on each of the first sleeves (7). The sliding block (9) includes a mounting ring (903), and the end of the mounting ring (903) is axially connected to a first magnetic ring (901), a second magnetic ring (902) and the first magnetic ring (901) in sequence; Both the first magnetic ring (901) and the second magnetic ring (902) are set as electromagnets. The first magnetic ring (901) is set as a Hall element with non-contact sensing function and is connected to the controller (2). When the second magnetic ring (902) drives the cleaning component (8) to move magnetically, if the cleaning component (8) stops due to jamming, the Hall element is triggered and transmits the signal to the controller (2). A first ultraviolet probe is provided, which is integrated on a sliding block (9). The motor (401) is turned on periodically, and the first ultraviolet probe is moved axially to detect the ultraviolet intensity in the length direction. The controller (2) records the ultraviolet intensity curve along the length direction. Then the motor (401) reverses, and the cleaning ring (802) cleans the first sleeve (7) and cleans the low point of the curve repeatedly according to the ultraviolet intensity curve. The axial drive assembly (4) includes a lead screw (402) and a limiting rod (403), which are arranged side by side in the second sleeve (10). The lead screw (402) is connected to the power output end of the motor (401), and the lead screw (402) is threaded to the mounting ring (903). The limiting rod (403) is axially slidably connected to the mounting ring (903). It also includes a temperature probe (5) and a second ultraviolet probe for detecting ultraviolet intensity. The probe ends of the temperature probe (5) and the second ultraviolet probe are both inserted into the liquid flow chamber (103). The signal input terminal of the controller (2) is electrically connected to the temperature probe (5) and the second ultraviolet probe, and its signal output terminal is electrically connected to the motor (401) and the lamp (3).

2. The ultraviolet sterilizer with self-cleaning function according to claim 1, characterized in that, The number of cleaning rings (802) is the same as the number of the first sleeve (7), and each of the cleaning rings (802) is connected to the magnetic ring (803) by a connecting ring (801); The cleaning ring (802) includes a fixing ring (8022), and a soft cleaning ring (8021) is provided on the inner side of the fixing ring (8022).

3. The ultraviolet sterilizer with self-cleaning function according to claim 2, characterized in that, The magnetism of the second magnetic ring (902) is opposite to that of the magnetic ring (803), and the magnetism of the first magnetic ring (901) is the same as that of the magnetic ring (803).

4. A self-cleaning ultraviolet sterilizer according to claim 3, characterized in that, The tube (1) is cylindrical, with sealed ends, and has an inlet (101) and an outlet (102) on each end. The ends of the first sleeve (7) and the second sleeve (10) abut against the end face of the tube body (1). Both are structures that are not connected to the liquid flow cavity (103) inside, and both have an opening on one side of their end faces for the lamp tube (3) and the drive part of the axial drive assembly (4) to be introduced.

5. A self-cleaning ultraviolet sterilizer according to claim 2, characterized in that, The diameter of the soft cleaning ring (8021) is smaller than the outer diameter of the first sleeve (7). When the cleaning ring (802) moves axially, the soft cleaning ring (8021) scrapes the outer surface of the first sleeve (7) in an inclined cone shape.

6. A self-cleaning ultraviolet sterilizer according to claim 1, characterized in that, The first sleeve (7) is made of transparent material, and the ultraviolet rays emitted by the lamp tube (3) pass radially through the first sleeve (7) and act on the liquid flow cavity (103).

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