Active scale removal and inhibition device, ultraviolet light source and water sterilizer

Abstract

The invention relates to an active descaling and scale inhibition device, an ultraviolet light source and a water sterilizer, and belongs to the technical field of dirt prevention and removal. Comprising an annular sliding rail, a sliding ring, a plurality of descaling blades, a magnet mounting ring, a plurality of groups of first magnet assemblies and a plurality of groups of second magnet assemblies, the multiple first magnet assemblies and the multiple second magnet assemblies are driven by high-frequency alternating current to conduct high-speed magnetic pole conversion and generate a high-frequency changing magnetic field, so that the multiple limiting pin shafts slide in the multiple arc-shaped rails in a reciprocating mode. And the plurality of descaling blades are driven to perform reciprocating closing or opening action on the surface of the optical window to scrape dirt on the surface of the optical window. A physical method is adopted for scale prevention and descaling, secondary pollution is avoided, water supply does not need to be stopped, the labor cost is saved, and the requirement for large-scale industrial application is met.

Description

Technical Field

[0001] The invention relates to the technical field of scale prevention and removal, and in particular to an active scale removal and scale prevention device, an ultraviolet light source and a water sterilizer. Background Art

[0002] In modern industry and life, water treatment technology has become an important field. Among them, water sterilizers, especially large-flow water sterilizers, are commonly used disinfection and sterilization equipment for disinfecting and sterilizing water to ensure the hygiene and safety of water quality. However, during the use of water sterilizers, when using UVC band ultraviolet rays as the sterilization factor for treating water sterilizers, one or more optical windows are usually set to allow the ultraviolet rays generated by the water sterilizer to enter the cavity to be sterilized. However, the scaling problem of the optical window has become a problem that cannot be ignored. The optical window is an important part of the water sterilizer. During use, the optical window is easily covered and blocked by the biofilm formed by sediment, scale, dead bacteria or algae, resulting in a decrease in ultraviolet transmittance and sterilization dose, resulting in insufficient sterilization rate, affecting production and life use. Therefore, how to prevent the scaling of the optical window and how to clean the scaled optical window have become an important research direction in the field of water treatment technology.

[0003] In the existing technology, chemical immersion or manual cleaning methods are usually used to prevent scaling of optical windows of water sterilizers or to clean scaled optical windows. Chemical immersion mainly involves immersing the optical window in a specific chemical agent to dissolve and remove scale through chemical reactions. However, chemical agents do not have a good cleaning and removal effect on the biofilm formed by bacteria or algae killed by the water sterilizer. In addition, large volumes of mud, plastic particles and other impurities will also block the vicinity of the optical window, affecting the sterilization effect. Manual cleaning is to remove scale on the optical window through manual means, such as scraping and washing.

[0004] However, whether it is chemical immersion or manual cleaning, the water supply to the water sterilizer needs to be stopped, which will cause certain inconveniences to production and life. Secondly, the addition of chemicals changes the pH value or taste of water, making it unsuitable for production and drinking. At the same time, both methods require manual operation, which is labor-intensive and inefficient, and cannot meet the needs of large-scale industrial applications.

[0005] Therefore, how to develop an efficient, automatic and environmentally friendly optical window fouling prevention and cleaning device has become an urgent problem to be solved in this field. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an active descaling and antiscaling device, an ultraviolet light source and a water sterilizer. The technical solution of the present invention is as follows:

[0007] The present invention provides an active descaling and anti-scaling device, which comprises an annular slide rail, a slip ring and a plurality of descaling blades. A plurality of evenly distributed tracks are provided on the top surface of the annular slide rail. A magnet mounting ring is fixedly connected to the outer ring surface of the annular slide rail. A plurality of groups of first magnet assemblies are installed on the magnet mounting ring. A plurality of descaling blades are slidably connected to the annular slide rail through a plurality of tracks. A limiting pin is fixedly connected to the top surface of the descaling blade. The annular slide rail is concentrically arranged with the slip ring. The slip ring is annular. A plurality of evenly distributed arc tracks are provided on the slip ring. The limiting pin is slidably engaged in the arc track. A second magnet assembly is fixedly connected between adjacent arc tracks on the slip ring. The number of descaling blades, tracks, limiting pins, arc tracks and second magnet assemblies is the same and the number of groups of the first magnet assemblies is the same. The bottom surface of the descaling blade is used to contact with the optical window of the water sterilizer.

[0008] Driven by high-frequency alternating current, several groups of first magnet assemblies and several second magnet assemblies undergo high-speed magnetic pole transformation and generate high-frequency changing magnetic fields, so that several limit pins slide back and forth in several arc tracks, driving several descaling blades to reciprocate and close or open on the surface of the optical window to scrape off dirt on the surface of the optical window.

[0009] Optionally, several first magnet assemblies in a group of first magnet assemblies are attracted to the second magnet assemblies corresponding to the group of first magnet assemblies in turn, causing their corresponding limit pins to slide from one end of the arc track to the other end, driving their corresponding descaling blades to gather toward or move away from the center of the optical window.

[0010] Optionally, the first magnet assembly and the second magnet assembly both include a shielding shell and two groups of double-turn coils, one side of the shielding shell is open, the two groups of double-turn coils are fixed in parallel in the shielding shell, and the openings of the shielding shells in the first magnet assembly and the second magnet assembly are relatively arranged.

[0011] Optionally, the side of the descaling blade close to the center of the optical window is a scraper, and the scraping direction of the scraping edge is 45°.

[0012] Optionally, the bottom surface of the descaling blade is fixedly connected to a limiting column, and the limiting column is slidably connected to the track.

[0013] Optionally, the top surface of the magnet mounting ring is higher than the top surface of the annular slide rail, and the top surface of the slip ring is flush with the top surface of the magnet mounting ring.

[0014] Optionally, the number of the descaling blades is six, the number of each group of first magnet assemblies is four, and the shape of the descaling blades is a notched fan shape.

[0015] Optionally, the limit pin is fixedly connected to the middle of the top edge of the descaling blade, the limit column is fixedly connected to the middle of the bottom edge of the descaling blade, the inner diameter of the annular slide rail matches the outer diameter of the optical window, and the inner diameter of the slip ring matches the outer diameter of the optical window.

[0016] The present invention also provides an ultraviolet light source, which includes a mounting base, an ultraviolet lamp panel, a heat sink, an optical window and the above-mentioned active descaling and antiscaling device;

[0017] The ultraviolet lamp board is mounted on the mounting base, the optical window is mounted on the mounting base and is located on the light emitting side of the ultraviolet lamp board, and the heat sink is mounted on the mounting base and is located on the back of the ultraviolet lamp board;

[0018] The mounting seat is fixedly connected to a side of the annular slide rail away from the descaling blades.

[0019] The present invention also provides a water sterilizer, which comprises at least one ultraviolet light source as described above.

[0020] All the above optional technical solutions can be combined arbitrarily, and the present invention does not provide detailed descriptions of the structures after the combinations.

[0021] By means of the above scheme, the beneficial effects of the present invention are as follows:

[0022] By setting up several groups of first magnet assemblies and several second magnet assemblies to perform high-speed magnetic pole transformation and generate high-frequency changing magnetic fields under the drive of high-frequency alternating current, several limit pins are made to slide back and forth in several arc tracks, driving several descaling blades to reciprocate and close or open on the surface of the optical window to scrape off the dirt on the surface of the optical window, providing a new type of scale prevention and descaling device for optical windows, which adopts physical methods for scale prevention and descaling, avoids changes in the chemical properties of the disinfection water, does not affect subsequent use, and avoids secondary pollution; avoids the need to stop water supply during chemical descaling and manual cleaning, reduces the impact of scale cleaning on production and life; saves labor costs, and is suitable for installation and use in small and confined spaces; has higher scene adaptability, avoids the singleness of the disinfection objects of chemical agents, and has a good removal rate for mud, microplastic particles, and bacterial algae biofilms in the water; has a high degree of automation and flexible application, meets the needs of large-scale industrial applications, and can be used with sensors or pre-programmed to perform scale cleaning operations at any time and for any duration.

[0023] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a structural schematic diagram of a plurality of descaling blades in the active descaling and antiscaling device provided in an embodiment of the present invention when they are closed.

[0025] Figure 2 It is a schematic diagram of the structure when a plurality of descaling blades in the active descaling and antiscaling device provided by an embodiment of the present invention are half-opened.

[0026] Figure 3 It is a structural schematic diagram of a plurality of descaling blades in an active descaling and antiscaling device provided by an embodiment of the present invention when they are opened.

[0027] Figure 4 It is an exploded view of the active descaling and antiscaling device provided in an embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the structure of the descaling blades in the active descaling and antiscaling device provided in an embodiment of the present invention.

[0029] Figure 6 It is a schematic diagram of the magnetic poles of the first magnet assembly and the second magnet assembly when the active scale removal and scale prevention device provided by an embodiment of the present invention is working.

[0030] Figure 7 It is a schematic diagram of the magnetic pole transformation of a group of first magnet components when the active scale removal and scale prevention device provided by an embodiment of the present invention is working.

[0031] Figure 8 It is a schematic structural diagram of a first magnet assembly and a second magnet assembly in an active scale removal and scale prevention device provided in an embodiment of the present invention.

[0032] Fig. 9 It is a schematic diagram of the structure of the ultraviolet light source provided by an embodiment of the present invention.

[0033] Fig.10 It is an exploded diagram of the ultraviolet light source provided by an embodiment of the present invention.

[0034] The accompanying drawings are marked as: 1. annular slide rail, 2. slip ring, 3. descaling blade, 4. magnet mounting ring, 5. first magnet assembly, 6. limit pin, 7. second magnet assembly, 7-1. shielding shell, 7-2. double-turn coil, 8. limit column, 10. mounting seat, 20. UV lamp board, 30. heat sink, 40. optical window, 50. sealing rubber ring. DETAILED DESCRIPTION

[0035] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] like Figures 1 to 4As shown, the active descaling and antiscaling device provided by the embodiment of the present invention comprises a circular slide rail 1, a slip ring 2 and a plurality of descaling blades 3, a plurality of evenly distributed tracks are provided on the top surface of the circular slide rail 1, a magnet mounting ring 4 is fixedly connected to the outer ring surface of the circular slide rail 1, a plurality of groups of first magnet assemblies 5 are installed on the magnet mounting ring 4, a plurality of descaling blades 3 are slidably connected to the circular slide rail 1 through a plurality of tracks, a limiting pin 6 is fixedly connected to the top surface of the descaling blade 3, the circular slide rail 1 is concentrically arranged with the slip ring 2, the slip ring 2 is a circular ring, a plurality of evenly distributed arc tracks are provided on the slip ring 2, the limiting pin 6 is slidably engaged in the arc track, a second magnet assembly 7 is fixedly connected between adjacent arc tracks on the slip ring 2, the number of descaling blades 3, tracks, limiting pins 6, arc tracks and second magnet assemblies 7 are the same and the number of groups of the first magnet assemblies 5 is the same, and the bottom surface of the descaling blade 3 is used to contact with the optical window 40 of the water sterilizer;

[0037] On the basis of this structure, the limit pin 6 on the top surface of the descaling blade 3 is installed in cooperation with the arc track. When the slip ring 2 rotates coaxially above the annular slide rail 1, the shear force of the arc track on the limit pin 6 acts together with the track, so that the descaling blade 3 closes or opens toward the center of the optical window 40 under the action of the shear force. During the action, the scale or bacterial biofilm on the surface of the optical window 40 is "shoveled" and peeled off by the shovel edge of the descaling blade 3, and then washed away by water and filtered;

[0038] When the control slip ring 2 is coaxially rotated above the annular slide rail 1, including but not limited to controlling a plurality of groups of first magnet assemblies 5 and a plurality of second magnet assemblies 7 to perform high-speed magnetic pole transformation and generate a high-frequency changing magnetic field under the drive of a high-frequency alternating current, a plurality of limit pin shafts 6 are made to slide back and forth in a plurality of arc-shaped tracks, driving a plurality of descaling blades 3 to reciprocate and close or open on the surface of the optical window 40, thereby scraping off the dirt on the surface of the optical window 40.

[0039] In a specific embodiment, the number of the descaling blades 3 is at least two. It should be noted that the fewer the number of descaling blades 3, the more the light source is blocked when turned on; the more the number of descaling blades 3, the less the light source is blocked when turned on, but the processing is more complicated. In specific implementation, the number of descaling blades 3 can be reasonably set according to the size of the optical window 40 and the processing cost. Preferably, the number of descaling blades 3 set in the embodiment of the present invention is six, which can balance the size and processing cost of the optical window 40. Regarding the number of each group of first magnet assemblies 5, the embodiment of the present invention does not make a specific limitation, and it needs to be set according to the size of the optical window 40 and the size of the first magnet assembly 5. Preferably, the embodiment of the present invention sets the number of each group of first magnet assemblies 5 to four.

[0040] In a specific embodiment, Figure 5 As shown, the shape of the descaling blade 3 is a notched fan-shaped. By setting the shape of the descaling blade 3 to a notched fan-shaped shape, when a plurality of descaling blades 3 are opened, the shielding of the light source can be minimized.

[0041] For ease of explanation, the following embodiments and the drawings in the specification of the embodiments of the present invention illustrate the active scale removal and scale prevention device provided in the embodiments of the present invention by taking the number of scale removal blades 3 as six, the number of each group of first magnet assemblies 5 as four, and the shape of the scale removal blades 3 as a notched fan shape.

[0042] In a specific embodiment, several first magnet assemblies 5 in a group of first magnet assemblies 5 are attracted to the second magnet assemblies 7 corresponding to the group of first magnet assemblies 5 in turn, causing their corresponding limit pins 6 to slide from one end of the arc track to the other end, driving their corresponding descaling blades 3 to gather toward or move away from the center of the optical window 40.

[0043] For example, the second magnet assembly 7 is powered on so that the direction of the magnetic field generated by all the second magnet assemblies 7 is radially outward (the N pole is facing the first magnet assembly 5). The direction of the magnetic field generated by the first magnet assembly 5 directly facing the second magnet assembly 7 is consistent with the direction of the second magnet assembly 7, that is, the S pole of the first magnet assembly 5 is opposite to the N pole of the second magnet assembly 7, so that the two attract each other.

[0044] By sequentially changing the magnetic pole directions of adjacent first magnet assemblies 5 in a group of first magnet assemblies 5 in a clockwise manner, the second magnet assembly 7 can be gradually displaced according to the principle of attraction between opposite magnetic poles. This process is as follows: Figure 7 As shown. Figure 7 As shown in FIG. (a), for a group of first magnet components 5, when the second magnet component 7 is shifted, the second magnet component 7 is first controlled to move toward the second first magnet component 5 ( Figure 7 From right to left, the first first magnet assembly 5, the second first magnet assembly 5, ... are attracted to each other. At this time, the first first magnet assembly 5 on the right side can be unpowered; then, as Figure 7 As shown in Figure (b), the third first magnet assembly 5 is controlled to be energized and attracted to the second magnet assembly 7. When the third first magnet assembly 5 rotates to be opposite to the second magnet assembly 7, the second first magnet assembly 5 is controlled to be de-energized, and the fourth first magnet assembly 5 is controlled to be energized and attracted to the second magnet assembly 7.

[0045] When the first magnet assembly 5 continues to change the magnetic pole direction in the counterclockwise direction, the descaling blade 3 can return to the original path and perform a reset action.

[0046] In summary, the first magnet assembly 5 is divided into 6 groups, corresponding to 6 second magnet assemblies 7 respectively. The adjacent 4 first magnet assemblies 5 in a group of first magnet assemblies 5 will alternately change their magnetic poles. At the same time, the second magnet assembly 7 is attracted and moved, which will drive the slip ring 2 to rotate coaxially with the circular slide rail 1. During the rotation, the shear force of the arc track on the limit pin 6 acts together with the track, so that the descaling blade 3 closes or opens toward the center of the optical window 40 under the action of the shear force. During the action, the shovel edge of the descaling blade 3 is used to "shovel" and peel off the scale or bacterial film on the surface of the optical window 40, and the shear force on the sliding column is converted into the power for the blade to perform the pushing and shoveling action. Figures 1 to 3 Schematic diagrams of the active descaling and antiscaling device when several blades are closed, half-opened and open respectively.

[0047] In a specific embodiment, Figure 8 As shown, the first magnet assembly 5 and the second magnet assembly 7 both include a shielding shell 7-1 and two groups of double-turn coils 7-2. The shielding shell 7-1 has an opening on one side, and the two groups of double-turn coils 7-2 are fixed in parallel in the shielding shell 7-1. The openings of the shielding shell 7-1 in the first magnet assembly 5 and the second magnet assembly 7 are arranged relatively. Specifically, the shielding shell 7-1 is used for glue filling to waterproof the two groups of double-turn coils 7-2. The opening on one side of the shielding shell 7-1 is to facilitate shell processing and later assembly. The two groups of double-turn coils 7-2 are connected in parallel and can generate magnetic fields of the same polarity after power is turned on. The parallel design of the two groups of double-turn coils 7-2 cooperates with the shielding shell 7-1 to enhance the directivity of the magnetic field.

[0048] In a specific embodiment, Figure 5 As shown, the side of the descaling blade 3 close to the center of the optical window 40 is a scraper, and the scraping direction of the scraping edge is 45 degrees. By setting it in this way, the cleaning and obstacle removal ability of the descaling blade 3 can be enhanced, and it can also be ensured that after a plurality of descaling blades 3 are closed, impurities will not be caught between two descaling blades 3, thereby causing the descaling blades 3 to be loosely closed and affecting the descaling effect.

[0049] In a specific embodiment, the bottom surface of the descaling blade 3 is fixedly connected to a limiting column 8, and the limiting column 8 is slidably connected to the track. In other words, the descaling blade 3 is installed in the track of the annular slide rail 1 through the limiting column 8 and can make linear motion in the track.

[0050] In a specific embodiment, the top surface of the magnet mounting ring 4 is higher than the top surface of the annular slide rail 1 to provide space for installing the slip ring 2; the top surface of the slip ring 2 is flush with the top surface of the magnet mounting ring 4, ensuring that the first magnet assembly 5 and the second magnet assembly 7 are flush, thereby enabling them to interact better.

[0051] In a specific embodiment, the limit pin 6 is fixedly connected to the middle of the top edge of the descaling blade 3, and the limit column 8 is fixedly connected to the middle of the bottom edge of the descaling blade 3 to improve the stability of the descaling blade 3 when it is in motion. The inner diameter of the annular slide rail 1 matches the outer diameter of the optical window 40, which means that the inner ring surface of the annular slide rail 1 does not block the optical window 40, so that the annular slide rail 1 does not block the light emitted by the light source. The inner diameter of the slip ring 2 matches the outer diameter of the optical window 40, which means that the inner ring surface of the slip ring 2 does not block the optical window 40, so that the slip ring 2 does not block the light emitted by the light source.

[0052] In summary, the active descaling and antiscaling device provided by the embodiment of the present invention has the following characteristics:

[0053] 1. Automatic cleaning of dirt can be achieved: a plurality of first magnet assemblies 5 and second magnet assemblies 7 can generate a high-frequency alternating magnetic field. Under the action of the alternating magnetic field, the descaling blades 3 perform a reciprocating shoveling action on the surface of the optical window 40 to remove dirt such as impurities attached to the optical window 40. This automated cleaning method greatly improves efficiency compared to traditional chemical immersion and manual cleaning, and is suitable for large-scale industrial applications. According to the above-mentioned shoveling descaling principle, active descaling operations on the optical window 40 can be performed at any time and for any length of time according to actual conditions, in combination with sensors or pre-programmed settings.

[0054] 2. Additional magnetic field application: A certain number of first magnet assemblies 5 and second magnet assemblies 7 are arranged near the optical window 40 to generate a high-frequency alternating magnetic field. This magnetic field can make the Ca2+ dissolved in water 2+ Mg 2+ 、CO3 2- OH - Ions in the form of charge carriers increase the collision frequency in water under the action of the alternating magnetic field, forming calcium salt compound crystals and magnesium salt compound crystals and precipitating them. The above reaction allows calcium salt crystals to occur in advance, thereby preventing the scaling of the optical window 40. The precipitated calcium salt, magnesium salt and other scales are washed away by water or filtered and removed at the rear. This additional effect is a supplement to the above active descaling effect.

[0055] 3. The annular slide rail 1 rotates coaxially with the slip ring 2. The track and the arc track are designed in coordination to ensure that the descaling blades 3 will not block the optical window 40 when the ultraviolet light source is working. When descaling is required, the optical window 40 can be completely covered by sliding splicing.

[0056] 4. Through the first magnet assembly 5 and the second magnet assembly 7, currents in different directions are passed to form different magnetic poles. Based on the principle of attraction between opposite magnetic poles, the slip ring 2 and the annular slide rail 1 are made to rotate coaxially and serve as the power for pushing and shoveling to remove scale, thereby achieving the effect of scale removal.

[0057] The present invention also provides a UV light source, such as Fig. 9 and Fig.10 As shown, it includes a mounting base 10, an ultraviolet lamp board 20, a heat sink 30, an optical window 40 and the active scale removal and scale prevention device described in the above embodiments; the ultraviolet lamp board 20 is mounted on the mounting base 10 by screws, the optical window 40 is mounted on the mounting base 10 and is located on the light emitting side of the ultraviolet lamp board 20, and the heat sink 30 is mounted on the mounting base 10 by screws and is located on the back side of the ultraviolet lamp board 20; the mounting base 10 is fixedly connected to the side of the circular slide rail 1 away from the descaling blades 3.

[0058] The ultraviolet lamp board 20 is used to generate ultraviolet rays as a sterilizing factor, the mounting seat 10 is fixed on the annular slide rail 1 through screw holes and screws, and the heat sink 30 is used to dissipate the heat generated by the ultraviolet lamp board 20. The optical window 40 can be made of quartz glass.

[0059] The ultraviolet light source provided in an embodiment of the present invention can prevent scaling of the optical window 40 by providing an active scaling removal and scaling prevention device. When scaling of the optical window 40 occurs, the scaling can be removed by the active scaling removal and scaling prevention device, thereby preventing the optical window 40 from affecting the sterilization effect of the ultraviolet lamp panel 20 due to scaling.

[0060] In another embodiment, the ultraviolet light source further includes an assembly flange, which is fixedly connected to the side of the annular slide rail 1 away from the descaling blades 3 by screws, and the assembly flange is provided with a plurality of screw holes evenly distributed in a circumference, which are used to fix the entire ultraviolet light source on a standard flange. Specifically, the assembly flange is an auxiliary component, which is used to ensure the stable assembly of the ultraviolet light source and the structure of the cavity to be sterilized.

[0061] In another embodiment, the ultraviolet light source further includes at least one sealing rubber ring 50, which is installed in a groove on the circular slide rail 1 to increase the sealing between the circular slide rail 1 and the assembly flange, so that the entire ultraviolet light source can achieve a sealed and waterproof effect.

[0062] The embodiment of the present invention further provides a water sterilizer, which includes the ultraviolet light source described in the above embodiment. The water sterilizer can be a large flow water sterilizer.

[0063] By arranging the water sterilizer to include an ultraviolet light source, and the ultraviolet light source including an active descaling and antiscaling device, the water sterilizer has automatic antiscaling and descaling functions, thereby preventing the optical window 40 of the ultraviolet light source from affecting the sterilization effect of the ultraviolet lamp panel 20 due to scaling.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An active descaling and antiscaling device, characterized in that: The invention comprises a circular slide rail (1), a slip ring (2) and a plurality of descaling blades (3); a plurality of evenly distributed tracks are provided on the top surface of the circular slide rail (1); a magnet mounting ring (4) is fixedly connected to the outer ring surface of the circular slide rail (1); a plurality of groups of first magnet assemblies (5) are mounted on the magnet mounting ring (4); a plurality of descaling blades (3) are slidably connected to the circular slide rail (1) via the plurality of tracks; a limiting pin shaft (6) is fixedly connected to the top surface of the descaling blade (3); and the circular slide rail (1) and the slip ring are connected to each other. (2) are concentrically arranged, the slip ring (2) is annular, a plurality of evenly distributed arc tracks are opened on the slip ring (2), the limit pin shaft (6) is slidably engaged in the arc tracks, a second magnet assembly (7) is fixedly connected between adjacent arc tracks on the slip ring (2), the number of the descaling blades (3), the tracks, the limit pin shaft (6), the arc tracks and the second magnet assembly (7) is the same and the number of groups is the same as that of the first magnet assembly (5), and the bottom surface of the descaling blade (3) is used to contact the optical window (40) of the water sterilizer; A plurality of groups of first magnet assemblies (5) and a plurality of second magnet assemblies (7) are driven by high-frequency alternating current to perform high-speed magnetic pole transformation and generate a high-frequency changing magnetic field, so that a plurality of limit pins (6) slide back and forth in a plurality of arc-shaped tracks, thereby driving a plurality of descaling blades (3) to perform a reciprocating closing or opening action on the surface of the optical window (40) to scrape off dirt on the surface of the optical window (40).

2. The active descaling and antiscaling device according to claim 1, characterized in that: A plurality of first magnet assemblies (5) in a group of first magnet assemblies (5) sequentially attract each other with the second magnet assemblies (7) corresponding to the group of first magnet assemblies (5), causing their corresponding limit pins (6) to slide from one end of the arc track to the other end, thereby driving their corresponding descaling blades (3) to gather toward or move away from the center of the optical window (40).

3. The active descaling and antiscaling device according to claim 1, characterized in that: The first magnet assembly (5) and the second magnet assembly (7) both comprise a shielding shell (7-1) and two groups of double-turn coils (7-2); one side of the shielding shell (7-1) is open; the two groups of double-turn coils (7-2) are fixed in parallel inside the shielding shell (7-1); and the openings of the shielding shells (7-1) in the first magnet assembly (5) and the second magnet assembly (7) are arranged relative to each other.

4. The active descaling and antiscaling device according to claim 1, characterized in that: The side of the descaling blade (3) close to the center of the optical window (40) is a scraper, and the scraping direction of the scraping edge is 45 degrees.

5. The active descaling and antiscaling device according to claim 1, characterized in that: The bottom surface of the descaling blade (3) is fixedly connected to a limiting column (8), and the limiting column (8) is slidably connected to the track.

6. The active descaling and antiscaling device according to claim 1, characterized in that: The top surface of the magnet mounting ring (4) is higher than the top surface of the annular slide rail (1), and the top surface of the slip ring (2) is flush with the top surface of the magnet mounting ring (4).

7. The active descaling and antiscaling device according to claim 1, characterized in that: The number of the descaling blades (3) is six, the number of each group of first magnet components (5) is four, and the shape of the descaling blades (3) is a missing-corner sector.

8. The active descaling and antiscaling device according to claim 1, characterized in that: The limiting pin (6) is fixedly connected to the middle of the top edge of the descaling blade (3), the limiting column (8) is fixedly connected to the middle of the bottom edge of the descaling blade (3), the inner diameter of the annular slide rail (1) matches the outer diameter of the optical window (40), and the inner diameter of the slip ring (2) matches the outer diameter of the optical window (40).

9. A UV light source, characterized in that: It comprises a mounting base (10), an ultraviolet lamp panel (20), a heat sink (30), an optical window (40), and an active descaling and antiscaling device as claimed in any one of claims 1 to 9; The ultraviolet lamp board (20) is mounted on the mounting base (10), the optical window (40) is mounted on the mounting base (10) and is located on the light emitting side of the ultraviolet lamp board (20), and the heat sink (30) is mounted on the mounting base (10) and is located on the back side of the ultraviolet lamp board (20); The mounting seat (10) is fixedly connected to a side of the annular slide rail (1) away from the descaling blades (3).

10. A water sterilizer, characterized in that: Comprising at least one ultraviolet light source as claimed in claim 9.

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