Excimer ultraviolet sterilizer

Abstract

The invention discloses an excimer ultraviolet sterilizer which is characterized in that the excimer ultraviolet sterilizer comprises an outer cylinder, an outer-layer quartz sleeve and an excimer lamp tube, and the outer cylinder is fixedly connected with the bottom of the excimer lamp tube; a U-shaped cavity is respectively formed among the outer cylinder body, the outer layer quartz sleeve and the excimer lamp tube; the flow guide valve body, the liquid inlet and the liquid outlet are formed in the flow guide valve body in the radial direction; the top of the outer barrel is detachably connected with the flow guide valve body, and the liquid inlet, the cavity and the liquid outlet are sequentially communicated; and the filtering assembly is arranged between the outer cylinder body and the outer-layer quartz sleeve. The central axes of the liquid inlet and the liquid outlet are close, and the liquid inlet and the liquid outlet are horizontally arranged, so that connection with a water inlet pipe and a water outlet pipe is facilitated; liquid flowing channels of the water inlet and the water outlet are in U-shaped spiral circulation, so that the liquid sterilization time is long, and the effect is better; the excimer lamp tube can quickly and efficiently output ultraviolet radiation at the moment of power-on.

Description

Technical Field

[0001] The invention relates to the technical field of sterilizers, and mainly to an excimer ultraviolet sterilizer. Background Art

[0002] The common over-flow ultraviolet sterilizers are mostly composed of a cylindrical section of stainless steel or plastic to form the working chamber, a low-pressure mercury lamp is arranged on the central axis of the chamber as the sterilization light source, and a water inlet and a water outlet are radially arranged on one side of the outer ring surface of the outer cylinder at both ends; the liquid flow channel between the water inlet and the water outlet is straight-line, the liquid sterilization distance is short, the sterilization time is short, and the sterilization effect is affected. In addition, this design takes up space during installation because the water inlet and outlet are far apart, and it is difficult to connect with the water pipe, which causes inconvenience during application.

[0003] Low-pressure mercury lamps cannot adapt to working environments that require frequent switching. When low-pressure mercury lamps are frequently switched on and off, their life and UV output intensity will be greatly reduced. Usually, the switching life of low-pressure mercury lamps is only about 10,000 times. At the same time, after the low-pressure mercury lamp is lit, the UV output intensity will gradually build up after a period of time, and this process usually takes 1-10 minutes. In this way, in some application places where the sterilizer needs to be frequently switched on and off with the water flow and respond quickly, the sterilizer using low-pressure mercury lamps as the sterilization light source cannot adapt well to the requirements of such working conditions.

[0004] For example, if a sterilizer with a low-pressure mercury lamp as the light source is installed in a household tap water purification system, the tap water is usually turned on and off more than 50 times a day, and the use time of each time is usually from tens of seconds to several minutes; this means that the life of the low-pressure mercury lamp in the sterilizer is only about half a year, and because the use time of each water is usually short, the ultraviolet output intensity of the low-pressure mercury lamp has not yet been established, and the sterilization effect is not good. In addition, some households do not install pre-filters on the water pipes for well water, and cannot filter sand and stones, which will cause wear and tear on the internal parts of the sterilizer. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an excimer ultraviolet sterilizer in which the central axes of the liquid inlet and the liquid outlet are close and horizontally arranged, so as to be conveniently connected with the water inlet pipe and the water outlet pipe; the liquid flow channel of the water inlet and the water outlet is a U-shaped spiral flow, the liquid sterilization time is long and the effect is better; the excimer lamp tube can output ultraviolet radiation quickly and efficiently at the moment of power-on; the filter component can be used as a pre-filter.

[0006] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions: An excimer ultraviolet sterilizer, characterized by comprising: An outer cylinder, an outer quartz sleeve, and an excimer lamp tube, wherein the excimer lamp tube, the outer quartz sleeve, and the outer cylinder are sequentially sleeved along the longitudinal direction from the inside to the outside, and an inner electrode of the excimer lamp is coaxially arranged inside the excimer lamp tube; The bottom of the outer cylinder is fixedly connected to the bottom of the excimer lamp; a U-shaped cavity is formed between the inner wall of the outer cylinder and the outer wall of the outer quartz sleeve, and between the inner wall of the outer quartz sleeve and the outer wall of the excimer lamp. A flow guiding valve body, a liquid inlet and a liquid outlet, wherein the liquid inlet and the liquid outlet are radially arranged on the flow guiding valve body respectively; the top of the outer cylinder body is detachably connected to the flow guiding valve body, and the liquid inlet, the cavity and the liquid outlet are sequentially connected to each other for liquid circulation; A filter assembly is arranged between the interior of the outer cylinder and the exterior of the outer quartz sleeve, and the filter assembly is longitudinally arranged at the U-shaped outer part of the cavity.

[0007] In a preferred embodiment of the present invention, the liquid inlet and the liquid outlet are arranged on the same axis in the horizontal direction, the liquid inlet is connected to the U-shaped outer top of the cavity, and the liquid outlet is connected to the U-shaped inner top of the cavity; the liquid inlet channel at the connection between the liquid inlet and the cavity and the liquid outlet channel at the connection between the liquid outlet and the cavity are L-shaped respectively, and the outer cylinder, the outer quartz sleeve, the excimer lamp, and the front half of the liquid outlet channel are coaxially arranged.

[0008] In a preferred embodiment of the present invention, an external thread is provided on the lower portion of the outer ring surface of the guide valve body, and an external flange is provided on the upper port of the outer cylinder of the sterilizer shell. The external thread of the guide valve body and the external flange of the outer cylinder are connected and fixed by an annular nut, and sealing is achieved by two-stage external sealing rings at the connecting contact surface.

[0009] In a preferred embodiment of the present invention, an upper bracket is arranged between the top of the excimer lamp and the entrance of the liquid outlet channel, and the longitudinal section of the upper bracket is convex-shaped; the upper bracket and the excimer lamp are coaxially arranged.

[0010] In a preferred embodiment of the present invention, the upper bracket is welded by two vertically crossed upper supporting plates, and the top protrusion of the upper bracket is snap-fitted at the entrance of the liquid outlet channel; the bottom middle part of the upper bracket is recessed inward to form a cylindrical groove, and the top longitudinal section of the excimer lamp tube is convex-shaped, and the convex-shaped top of the excimer lamp tube is snap-fitted into the cylindrical groove at the bottom of the upper bracket.

[0011] In a preferred embodiment of the present invention, the top periphery of the upper bracket, the top of the outer quartz sleeve, and the bottom periphery of the diverter valve body are sealed and connected by an inner sealing ring; the bottom middle portion of the diverter valve body is recessed and provided with an annular groove, which facilitates better sealing and fixing of the outer quartz sleeve; the top side portion of the outer ring surface of the upper bracket is recessed to form a groove, and the annular groove matches the annular protrusion in the bottom middle portion of the diverter valve body; The right part of the longitudinal section of the inner sealing ring is in the shape of a Chinese character "Y". The top of the inner sealing ring is clamped in the annular groove of the guide valve body, and the inner bottom of the Chinese character "Y" is abutted against the bottom of the groove of the upper bracket; the top of the outer quartz sleeve is clamped on the inner side of the bottom of the Chinese character "Y" of the inner sealing ring.

[0012] In a preferred embodiment of the present invention, a lower bracket is arranged between the inner bottom of the outer cylinder and the bottom of the outer quartz sleeve, and the lower bracket is located at the U-shaped bottom bend of the cavity; the top and bottom sides of the lower bracket are M-shaped; a plurality of curved hooks are arranged on the upper inner part of the lower bracket, and the plurality of curved hooks support the bottom end surface of the outer quartz sleeve.

[0013] In a preferred embodiment of the present invention, the filter assembly is in the shape of a cylinder with covers at both ends, and the top of the filter assembly is mounted on the inner wall of the outer cylinder, and the bottom is mounted on the inner bottom wall of the outer cylinder.

[0014] In a preferred embodiment of the present invention, the filter assembly includes a pair of support frames, a coarse filter screen, and a fine filter screen, and the coarse filter screen and the fine filter screen are longitudinally arranged in sequence from the outside to the inside between the pair of support frames; an upper support rod is radially fixedly arranged on the inner wall of the outer cylinder, and the top of the outer ring surface of the support frame is clamped between the inner end of the upper support rod and the outer ring surface of the inner sealing ring, and the top of the support frame is against the inner sealing ring; the bottom of the outer ring surface of the support frame is inserted into the outer ring surface of the lower bracket.

[0015] In a preferred embodiment of the present invention, an excimer lamp starting power supply is arranged on the top of the guide valve body, and the bottom of the excimer lamp tube is electrically connected to the output end of the excimer lamp starting power supply through an input cable; a sealing nut and a cable lock are sequentially arranged on the outer periphery of the bottom of the excimer lamp tube.

[0016] The beneficial effects of the present invention are as follows: an excimer ultraviolet sterilizer, wherein the liquid inlet and liquid outlet structures are consistent with the water inlet and outlet structures of a common filter, and are convenient for direct installation and use, and no installation connection joints need to be configured; the central axes of the liquid inlet and the liquid outlet are close and are arranged horizontally, which is convenient for connection with the water inlet pipe and the water outlet pipe, and the water pipe can also provide a support for the liquid inlet and the liquid outlet; the filter assembly can be used as a pre-filter.

[0017] The excimer lamp tube and the outer quartz sleeve are both made of materials with high UV transmittance. The liquid flow channels of the water inlet and outlet are not straight-lined, but U-shaped spirals. When the liquid flows through the outer and inner layers of the working cavity, it can be irradiated by the ultraviolet light emitted by the lamp tube, and obtain double-stage sterilization treatment with uniform flow rate. Compared with conventional sterilizers, this can obtain a longer sterilization time and a larger sterilization dose, and achieve a better sterilization effect.

[0018] The sterilizer is equipped with excimer lamps as sterilization light sources; excimer lamps have the characteristics of long switching life and rapid establishment of ultraviolet intensity, and are very suitable for working under conditions of rapid startup and frequent switching; through experimental tests, we have found that excimer lamps can efficiently output ultraviolet radiation (reaction time is less than 1 second) at the moment of power-on, and can achieve up to 300,000 flash life tests; they can well adapt to the special working conditions requirements of water purification fields such as homes, restaurants, hospitals, and hotels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The diagram is a schematic structural diagram of an excimer ultraviolet sterilizer of the present invention.

[0020] Figure 2 The figure is a side view of an excimer ultraviolet sterilizer of the present invention.

[0021] Figure 3 It is a structural schematic diagram of an upper bracket of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the lower bracket of the present invention.

[0023] Figure Number: 11. outer cylinder, 12. outer quartz sleeve, 13. excimer lamp tube, 14. cavity; 15. inner electrode.

[0024] 21. diverter valve body, 22. liquid inlet, 23. liquid outlet; 24. liquid inlet channel, 25. liquid outlet channel.

[0025] 31. Upper bracket, 311. first upper supporting plate, 312. second upper supporting plate; 32. inner sealing ring; 33. lower bracket, 331. M-shape, 332. hook; 34. ring nut.

[0026] 41. Excimer lamp starting power supply; 42. Input cable; 43. Sealing nut; 44. Cable lock; 45. UV window; 46. Hanging bracket; 47. Drain hole.

[0027] 51. upper support rod; filter assembly: 52. support frame; 53. coarse filter screen. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0029] See also Figure 1 to Figure 2 The figure shows an excimer ultraviolet sterilizer, comprising: an outer cylinder 11, an outer quartz sleeve 12, and an excimer lamp 13. The excimer lamp 13, the outer quartz sleeve 12, and the outer cylinder 11 are sequentially arranged along the longitudinal direction from the inside to the outside, and the inner electrode 15 of the excimer lamp is coaxially arranged inside the excimer lamp 13; the bottom of the outer cylinder 11 is fixedly connected to the bottom of the excimer lamp 13; the inner wall of the outer cylinder 11 is connected to the outer quartz sleeve 12 ... A U-shaped cavity 14 is formed between the outer walls of the sleeve 12, the inner wall of the outer quartz sleeve 12 and the outer wall of the excimer lamp tube 13 respectively; the diverter valve body 21, the liquid inlet 22, and the liquid outlet 23 are radially arranged on the diverter valve body 21 respectively; the top of the outer cylinder 11 is detachably connected to the diverter valve body 21, and the liquid inlet 22, the cavity 14, and the liquid outlet 23 are sequentially connected for liquid circulation.

[0030] The structure of the liquid inlet 22 and the liquid outlet 23 of the present invention is consistent with the structure of the water inlet and outlet of common filters, which is convenient for direct installation and use without the need to configure installation connection joints; the central axes of the liquid inlet 22 and the liquid outlet 23 are close and are arranged horizontally, which is convenient for connection with the water inlet pipe and the water outlet pipe, and the water pipe can also provide a support for the liquid inlet and the liquid outlet; the filter assembly can be used as a pre-filter.

[0031] In addition, because the excimer lamp tube 13 and the outer quartz sleeve 12 are both made of materials with very high ultraviolet transmittance, the liquid flow channels of the water inlet and the water outlet are not straight-lined, but U-shaped spiral flows; when the liquid flows through the outer layer of the working cavity 14 and the inner layer of the working cavity 14, it can be irradiated by the ultraviolet light emitted by the excimer lamp tube 13, and obtain double-stage sterilization treatment with uniform flow rate; compared with conventional sterilizers, this can obtain a longer sterilization time and a larger sterilization range, a wide range of liquid sterilization distance, and a better sterilization effect.

[0032] The sterilizer is equipped with an excimer lamp as a sterilization light source; the excimer lamp 13 has the characteristics of long switching life and rapid establishment of ultraviolet intensity, and is very suitable for working under conditions of rapid startup and frequent switching; through experimental tests, we have found that the excimer lamp 13 can efficiently output ultraviolet radiation (reaction time is less than 1 second) at the moment of power-on, and can achieve a flash life test of up to 300,000 times; it can well adapt to the special working conditions requirements of water purification fields such as homes, restaurants, hospitals, and hotels.

[0033] Furthermore, the liquid inlet 22 and the liquid outlet 23 are arranged on the same axis in the horizontal direction, the liquid inlet 22 is connected to the U-shaped outer top of the cavity 14, and the liquid outlet 23 is connected to the U-shaped inner top of the cavity 14; the liquid inlet channel 24 at the connection between the liquid inlet 22 and the cavity 14 and the liquid outlet channel 25 at the connection between the liquid outlet 23 and the cavity 14 are respectively L-shaped, and the outer cylinder 11, the outer quartz sleeve 12, the excimer lamp tube 13, and the front half of the liquid outlet channel 25 are coaxially arranged.

[0034] Furthermore, an external thread is provided on the lower part of the outer ring surface of the guide valve body 21, and an external flange is provided on the upper port of the outer cylinder 11 of the sterilizer shell. The external thread of the guide valve body 21 and the external flange of the outer cylinder 11 are connected and fixed by an annular nut 34, and sealing is achieved by two-stage external sealing rings at the connecting contact surface.

[0035] The above-mentioned diversion valve body 21 serves as the main body of the sterilizer structure, which not only realizes the compact arrangement of the water inlet and outlet in a straight line to facilitate installation and connection, but also realizes the diversion function required for the operation of the new sterilizer; the water inlet and the water outlet are not connected in a straight line, but are arranged on the same axis to facilitate connection with the water inlet pipe and the water outlet pipe.

[0036] In this preferred embodiment, combined with Figure 3 An upper bracket 31 is disposed between the top of the excimer lamp tube 13 and the entrance of the liquid outlet channel 25 , and the longitudinal section of the upper bracket 31 is in a convex shape; the upper bracket 31 and the excimer lamp tube 13 are coaxially disposed.

[0037] Furthermore, the upper bracket 31 is welded by two vertically crossed upper supporting plates (stainless steel plates), that is, the upper bracket 31 includes a first upper supporting plate 311 and a second upper supporting plate 312, and the longitudinal sections of the first upper supporting plate 311 and the second upper supporting plate 312 are respectively convex-shaped; the top protrusion of the upper bracket 31 is clamped at the entrance of the liquid outlet channel 25; the bottom middle part of the upper bracket 31 is recessed inward to form a cylindrical groove, and the top longitudinal section of the excimer lamp tube 13 is convex-shaped, and the convex-shaped top of the excimer lamp tube 13 is clamped in the cylindrical groove at the bottom of the upper bracket 31.

[0038] Specifically, the upper bracket 31 is made of a thin stainless steel wire with a diameter of 1-1.5 mm; the top of the upper bracket 31 is engaged with the central inner hole of the guide valve body 21. The upper bracket 31 can not only position the tail end of the excimer lamp 13, but also does not affect the flow of the working liquid.

[0039] Further, a sealing connection is made between the top outer periphery of the upper bracket 31, the top of the outer quartz sleeve 12, and the bottom outer periphery of the diversion valve body 21 through an inner sealing ring 32; a ring groove is recessed in the middle of the bottom of the diversion valve body 21, and the ring groove facilitates better sealing and fixing of the outer quartz sleeve 12; a groove is recessed in the top side of the outer ring surface of the upper bracket 31, and the circular ring groove matches the annular protrusion in the middle of the bottom of the diversion valve body 21; the right part of the longitudinal section of the inner sealing ring 32 is in a shape like the Chinese character 'yu', the top of the 'yu' shape of the inner sealing ring 32 is clamped in the ring groove of the diversion valve body 21, and the inner bottom of the 'yu' shape abuts against the bottom of the groove of the upper bracket 31; the top of the outer quartz sleeve 12 is clamped inside the bottom of the 'yu' shape of the inner sealing ring 32. Specifically, the upper part of the outer quartz sleeve 12 and the groove outside the water outlet hole of the diversion valve body 21 are cooperated by the inner sealing ring 32 (T-shaped rubber ring) to form a sealing and fixing structure.

[0040] In this preferred embodiment, combined with Figure 4 , a lower bracket 33 is provided between the inner bottom of the outer cylinder 11 and the bottom of the outer quartz sleeve 12, and the lower bracket 33 is located at the U-shaped bottom turning of the cavity 14; the top and bottom sides (in the pitch view) of the lower bracket 33 are in an M shape 331; several hooks 332 are provided inside the upper part of the lower bracket 33, and the several hooks support the bottom end face of the outer quartz sleeve 12.

[0041] Specifically, the lower bracket 33 is also constructed by thin stainless steel wires with a diameter of 1 - 1.5 mm, and the lower bracket 33 is made by splicing and spot welding two sections of bent stainless steel wires; the inner diameter of the square hole in the middle of the bottom of the lower bracket 33 is slightly larger than the outer diameter of the excimer lamp tube 13, and the excimer lamp tube 13 can pass through it, and provides radial positioning for the lower wire bracket; four hook-shaped structures (hooks) are provided inside the upper part of the lower bracket 33 to provide axial and radial positioning for the outer quartz sleeve 12; the lower wire bracket will not hinder the flow of the working liquid.

[0042] In this preferred embodiment, a filtering component is provided between the inside of the outer cylinder 11 and the outside of the outer quartz sleeve 12, and the filtering component is longitudinally arranged in the U-shaped outer part of the cavity 14; the filtering component is in a cylindrical shape with open ends at both ends, the top of the filtering component is installed on the inner wall of the outer cylinder 11, and the bottom is installed on the inner bottom wall of the outer cylinder 11.

[0043] Furthermore, the filter assembly includes a pair of support frames 52, a coarse filter screen 53, and a fine filter screen, and the coarse filter screen 53 and the fine filter screen are longitudinally arranged between the pair of support frames 52 in sequence from the outside to the inside; an upper support rod 51 is radially fixedly arranged on the inner wall of the outer cylinder 11, and the top of the outer annular surface of the support frame 52 is clamped between the inner end of the upper support rod 51 and the outer annular surface of the inner sealing ring 32, and the top of the support frame 52 is against the inner sealing ring 32; the bottom of the outer annular surface of the support frame 52 is inserted into the outer annular surface of the lower bracket 33.

[0044] Specifically, the top of the upper support frame fits tightly with the lower end of the outer circular wall of the inner sealing ring, and the bottom of the lower support frame fits tightly with the outer surface of the lower bracket to position it; the middle section is a multi-layer filtering structure, the innermost layer is a stainless steel pipe with a plurality of small holes arranged radially, and its diameter is equal to the diameter of the two small sections of stainless steel pipes at the top and bottom ends, which plays a supporting role for the entire filtering structure; the middle layer is a fine stainless steel filter, which can prevent fine particles in the water from passing through. The outermost layer is a coarser stainless steel filter, which can prevent larger particles from passing through and protect the fine stainless steel filter in the middle layer.

[0045] In this way, when water enters the sterilizer from the liquid inlet on the diversion valve body, it is first filtered through the multi-layer filter screen on the filter cartridge of the filter assembly to remove pollutants such as mud and sand, which can directly act as a filter; after flowing into the filter cartridge, it flows through the excimer ultraviolet lamp to sterilize the water flow to ensure the safety of water use; the direct irradiation of the ultraviolet lamp can also ensure that the filter screen of the filter cartridge will not breed bacteria due to the attachment of pollutants. The small section of stainless steel pipe at the lower end of the filter cartridge plays a role in preventing the particles deposited outside the filter cartridge from attaching to the filter cartridge. The filter assembly integrates more applicable functions for the sterilizer, which can better simplify the water purification equipment and reduce its installation volume and use cost.

[0046] When in use, if there is no pre-filter connected to the water inlet of the water pipe, a pre-filter can be installed inside the excimer ultraviolet sterilizer to filter impurities in the water. Specifically, the pre-filter is a coarse filter, a fine filter, and a support frame arranged from the outside to the inside. The coarse filter is used to filter large particles of impurities in the water, and the fine filter is used to filter small particles of impurities in the water, such as rust, sand, and insect eggs.

[0047] In this preferred embodiment, an excimer lamp starting power supply 41 is arranged on the top of the guide valve body 21, and the bottom of the excimer lamp tube 13 is electrically connected to the output end of the excimer lamp starting power supply 41 through an input cable 42; a sealing nut 43 and a cable lock 44 are arranged in sequence on the outer periphery of the bottom of the excimer lamp tube 13.

[0048] Specifically, the bottom of the excimer lamp starting power supply 41 and the top of the diversion valve body 21 are connected and installed through an excimer lamp power supply bracket, which integrates the excimer lamp starting power supply 41 and the sterilizer into one, so there is no need to find another installation position for the excimer lamp starting power supply 41; an ultraviolet window 45 is provided at the connection between the bottom periphery of the excimer lamp starting power supply 41 and the diversion valve body 21, so as to facilitate the inspection of the working condition of the ultraviolet sterilizer and timely find problems. The inner annular surface of the sleeve sealing nut 43 and the cable lock 44 are fixed and connected to the lamp input cable 42 by threaded connection; the lamp input cable 42 is used to connect the excimer lamp starting power supply 41 and the inner electrode 15 of the excimer lamp to provide power for the operation of the excimer lamp tube 13.

[0049] Specifically, a circular protrusion is vertically arranged downward in the lower middle part of the outer cylinder 11, and an external thread is arranged on the outer ring surface of the circular protrusion, and the external thread of the circular protrusion is connected to the sealing nut 43; the sleeve sealing nut 43 and the excimer lamp tube 13 and the outer cylinder 11 of the shell are sealed through the matching O-ring. A drainage hole 47 is arranged on one side of the bottom of the outer ring surface of the outer cylinder 11. By opening the valve connected to the drainage hole, the pollutants deposited at the bottom of the sterilizer and between the aluminum cylinder and the sterilizer cylinder can be flushed out; when the inlet and outlet of the sterilizer are reversed by conditions, the pollutants adsorbed on the inner wall of the outer cylinder 11 and the outer wall of the outer quartz sleeve 12 can also be flushed out.

[0050] In this embodiment, the diameter of the lower part of the outer cylinder 11 of the sterilizer shell gradually decreases; the diameter of the outer quartz sleeve 12 is larger than that of the excimer lamp tube 13, and is sleeved on the outside of the excimer lamp tube 13; the top of the excimer lamp tube 13 is a semicircular head closed structure and the bottom is open, and the lamp tube input cable 42 can enter from this opening; the cable is connected to the inner electrode 15 of the single-ended excimer lamp through the lamp holder; the inner electrode 15 of the excimer lamp is built into the excimer lamp tube 13 to prevent it from contacting the liquid.

[0051] A sterilizer hanger 46 is also provided on the top of the guide valve body 21. When the sterilizer hanger 46 is connected to the sterilizer in a hose manner, it is used to install and fix the sterilizer; or the sterilizer hanger 46 is not used and the sterilizer is directly fixed and installed in a hard pipe connection manner.

[0052] When the sterilizer is used, its water inlet can be directly connected to the pipeline to be treated, and then the output pipeline can be connected to its water outlet. Unlike conventional sterilizers, it is not necessary to first find an installation location for the sterilizer, and then configure elbows and other accessories according to the installation location of the sterilizer to connect the corresponding pipeline; and the molecular lamp starting power supply 41 must be installed separately, which greatly reduces the installation workload and the space required for installation.

[0053] The basic working principle of the present invention is: First, after the liquid flows into the sterilizer through the water inlet of the present invention, it enters the outer space of the working cavity 14 formed by the outer cylinder 11 of the sterilizer shell and the outer wall of the outer quartz sleeve 12 through the water inlet hole (liquid inlet channel 24) on the diverter valve body 21, and flows from top to bottom in this area under the pressure of water; and filters out particles or other impurities after passing through the filter assembly. Then, after the liquid reaches the lower part of the cavity 14, the lower bracket 33 allows water to pass through; the liquid continues to flow upward through the inner space of the working cavity 14 formed by the inner wall of the outer quartz sleeve 12 and the outer wall of the excimer lamp tube 13. Finally, it reaches the water outlet of the diverter valve body 21 through the upper bracket 31 and the water outlet hole (liquid outlet channel 25) of the diverter valve body 21; in the inner working cavity 14, the ultraviolet intensity is the highest, and the liquid is sterilized again to achieve a better sterilization effect; at this point, the entire flow process of the liquid in the sterilizer is completed.

[0054] With this new structure, the upper bracket 31, the lower bracket 33, various sealing rings, and the lamp tube are easy to replace; the excimer lamp tube 13, the outer quartz sleeve 12, the cylinder and other components of the sterilizer can be easily disassembled and cleaned, which is more beneficial to ensure that the sterilizer can work efficiently for a long time.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An excimer ultraviolet sterilizer, It is characterized in that include: An outer cylinder, an outer quartz sleeve, and an excimer lamp tube, wherein the excimer lamp tube, the outer quartz sleeve, and the outer cylinder are sequentially sleeved along the longitudinal direction from the inside to the outside, and an inner electrode of the excimer lamp is coaxially arranged inside the excimer lamp tube; The bottom of the outer cylinder is fixedly connected to the bottom of the excimer lamp; a U-shaped cavity is formed between the inner wall of the outer cylinder and the outer wall of the outer quartz sleeve, and between the inner wall of the outer quartz sleeve and the outer wall of the excimer lamp. A flow guiding valve body, a liquid inlet and a liquid outlet, wherein the liquid inlet and the liquid outlet are radially arranged on the flow guiding valve body respectively; the top of the outer cylinder body is detachably connected to the flow guiding valve body, and the liquid inlet, the cavity and the liquid outlet are sequentially connected to each other for liquid circulation; A filter assembly is arranged between the interior of the outer cylinder and the exterior of the outer quartz sleeve, and the filter assembly is longitudinally arranged at the U-shaped outer part of the cavity.

2. An excimer ultraviolet sterilizer as claimed in claim 1, It is characterized in that The liquid inlet and the liquid outlet are arranged on the same axis in the horizontal direction, the liquid inlet is connected to the U-shaped outer top of the cavity, and the liquid outlet is connected to the U-shaped inner top of the cavity; the liquid inlet channel at the connection between the liquid inlet and the cavity and the liquid outlet channel at the connection between the liquid outlet and the cavity are L-shaped respectively, and the outer cylinder, the outer quartz sleeve, the excimer lamp, and the front half of the liquid outlet channel are coaxially arranged.

3. An excimer ultraviolet sterilizer as claimed in claim 1, It is characterized in that An external thread is arranged at the lower part of the outer ring surface of the guide valve body, and an external flange is arranged at the upper port of the outer cylinder of the sterilizer shell. The external thread of the guide valve body and the external flange of the outer cylinder are connected and fixed by an annular nut, and sealing is achieved by two-stage external sealing rings at the connection contact surface.

4. An excimer ultraviolet sterilizer as claimed in claim 2, It is characterized in that An upper bracket is arranged between the top of the excimer lamp tube and the entrance of the liquid outlet channel, and the longitudinal section of the upper bracket is in a convex shape; the upper bracket and the excimer lamp tube are coaxially arranged.

5. An excimer ultraviolet sterilizer as claimed in claim 4, It is characterized in that The upper bracket is welded by two vertically crossed upper brackets, and the top protrusion of the upper bracket is clamped at the entrance of the liquid outlet channel; the bottom middle part of the upper bracket is recessed inward to form a cylindrical groove, and the top longitudinal section of the excimer lamp is convex, and the convex top of the excimer lamp is clamped in the cylindrical groove at the bottom of the upper bracket.

6. An excimer ultraviolet sterilizer as claimed in claim 5, It is characterized in that The top periphery of the upper bracket, the top of the outer quartz sleeve, and the bottom periphery of the diverter valve body are sealed and connected by an inner sealing ring; the bottom middle part of the diverter valve body is recessed and provided with an annular groove, which facilitates better sealing and fixing of the outer quartz sleeve; the top side part of the outer ring surface of the upper bracket is recessed to form a groove, and the annular groove matches the annular protrusion in the bottom middle part of the diverter valve body; The right part of the longitudinal section of the inner sealing ring is in the shape of a Chinese character "Y". The top of the inner sealing ring is clamped in the annular groove of the guide valve body, and the inner bottom of the Chinese character "Y" is abutted against the bottom of the groove of the upper bracket; the top of the outer quartz sleeve is clamped on the inner side of the bottom of the Chinese character "Y" of the inner sealing ring.

7. An excimer ultraviolet sterilizer as claimed in claim 1, It is characterized in that A lower bracket is arranged between the inner bottom of the outer cylinder and the bottom of the outer quartz sleeve, and the lower bracket is located at the U-shaped bottom bend of the cavity; the top and bottom sides of the lower bracket are M-shaped; a plurality of curved hooks are arranged on the upper inner part of the lower bracket, and the plurality of curved hooks support the bottom end surface of the outer quartz sleeve.

8. An excimer ultraviolet sterilizer as claimed in claim 1, It is characterized in that The filter assembly is in the shape of a cylinder with covers at both ends. The top of the filter assembly is installed on the inner wall of the outer cylinder, and the bottom is installed on the inner bottom wall of the outer cylinder.

9. An excimer ultraviolet sterilizer as claimed in claim 8, It is characterized in that The filter assembly includes a pair of support frames, a coarse filter screen, and a fine filter screen, and the coarse filter screen and the fine filter screen are longitudinally arranged between the pair of support frames from the outside to the inside; an upper support rod is radially fixedly arranged on the inner wall of the outer cylinder, and the top of the outer ring surface of the support frame is clamped between the inner end of the upper support rod and the outer ring surface of the inner sealing ring, and the top of the support frame is against the inner sealing ring; the bottom of the outer ring surface of the support frame is inserted into the outer ring surface of the lower bracket.

10. An excimer ultraviolet sterilizer as claimed in claim 1, It is characterized in that An excimer lamp starting power supply is arranged on the top of the guide valve body, and the bottom of the excimer lamp tube is electrically connected to the output end of the excimer lamp starting power supply through an input cable; a sealing nut and a cable lock are arranged in sequence on the outer periphery of the bottom of the excimer lamp tube.

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