Excimer ultraviolet sterilizer

Abstract

The utility model discloses an excimer ultraviolet sterilizer which is characterized by comprising an outer cylinder body, an outer-layer quartz sleeve and an excimer lamp tube, and an inner electrode of the excimer lamp is coaxially arranged in the excimer lamp tube; the outer cylinder body 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. The central axes of the liquid inlet and the liquid outlet are close and are horizontally arranged, so that the liquid inlet and the liquid outlet can be conveniently connected with a water inlet pipe and a water outlet pipe; 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 utility model relates to the technical field of sterilizers, and mainly relates to an excimer ultraviolet sterilizer. Background Art

[0002] For the common in-line ultraviolet sterilizers currently available, most of them use a section of cylindrical stainless steel or plastic to form a working cavity. A low-pressure mercury lamp is arranged on the central axis of the cavity as the sterilization light source. An inlet and an outlet are respectively arranged radially on one side of both ends of the outer ring surface of the outer cylinder; the liquid flow channels of the inlet and the outlet are linearly connected, the liquid sterilization path is short, the sterilization time is short, and the sterilization effect is affected. In addition, due to the relatively long distance between the inlet and the outlet, this design occupies space during installation and is troublesome to connect to the water pipe, causing inconvenience during application.

[0003] The low-pressure mercury lamp cannot adapt to the working environment that requires frequent on-off; when the low-pressure mercury lamp is in the frequent switching working condition, its service life and ultraviolet output intensity will be greatly reduced. Usually, the switching life of the low-pressure mercury lamp is only about 10,000 times. At the same time, after the low-pressure mercury lamp is lit, the ultraviolet output intensity needs some time to gradually build up, and this process usually takes 1 - 10 minutes; thus, in some application places where the sterilizer needs to be switched on and off frequently with the water flow and respond quickly, the sterilizer using the low-pressure mercury lamp as the sterilization light source cannot well meet the requirements of this working condition.

[0004] For example, when a sterilizer with a low-pressure mercury lamp as the light source is configured in a household tap water purification system, the number of times the tap water is switched on and off every day in the family is usually more than 50 times, and the usage time each time is usually from dozens of seconds to several minutes; this means that the service life of the low-pressure mercury lamp in the sterilizer is only about half a year, and because the usage time of the water each time is usually short, the ultraviolet output intensity of the low-pressure mercury lamp has not been established yet, and the sterilization effect is also not good. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide an excimer ultraviolet sterilizer in which the central axes of the liquid inlet and the liquid outlet are close to each other and are horizontally arranged, which is convenient for connecting to the water inlet pipe and the water outlet pipe; the liquid flow channels of the water inlet and the water outlet are U-shaped spiral flows, the liquid sterilization time is long, and the effect is better; the excimer lamp tube can quickly and efficiently output ultraviolet radiation instantaneously when powered on.

[0006] The technical problem to be solved by the utility model can be realized by adopting the following technical solutions:

[0007] An excimer ultraviolet sterilizer, characterized by comprising:

[0008] An outer cylinder, an outer layer quartz sleeve, and an excimer lamp tube, the excimer lamp tube, the outer layer quartz sleeve, and the outer cylinder are sleeved in sequence from the inside to the outside along the longitudinal direction, and an inner electrode of the excimer lamp is coaxially arranged inside the excimer lamp tube;

[0009] The bottom of the outer cylinder is fixedly connected to the bottom of the excimer lamp tube; a U-shaped cavity is respectively 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 tube;

[0010] A flow guiding valve body, a liquid inlet, and a liquid outlet are provided. The liquid inlet and the liquid outlet are respectively arranged radially on the flow guiding valve body; the top of the outer cylinder is detachably connected to the flow guiding valve body, and the liquid inlet, the cavity, and the liquid outlet are sequentially communicated for liquid to flow through.

[0011] 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 communicated with the outer top of the U-shaped of the cavity, and the liquid outlet is communicated with the inner top of the U-shaped 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 respectively in an L shape, and the outer cylinder, the outer quartz sleeve, the excimer lamp tube, and the first half of the liquid outlet channel are coaxially arranged.

[0012] In a preferred embodiment of the present invention, an external thread is provided on the lower part of the outer ring surface of the flow guiding valve body, and a turned-up edge is provided at the upper port of the outer cylinder of the shell of the sterilizer. The external thread of the flow guiding valve body and the turned-up edge of the outer cylinder are connected and fixed by an annular nut, and sealed by two-stage outer sealing rings at the connection contact surface.

[0013] In a preferred embodiment of the present invention, an upper bracket is provided between the top of the excimer lamp tube and the entrance of the liquid outlet channel. The longitudinal section of the upper bracket is in a convex shape; the upper bracket and the excimer lamp tube are coaxially arranged.

[0014] In a preferred embodiment of the present invention, the upper bracket is welded by two vertically crossed upper support pieces. The top convex part of the upper bracket is clamped at the entrance of the liquid outlet channel; the middle part of the bottom of the upper bracket is recessed inward to form a cylindrical groove. The longitudinal section of the top of the excimer lamp tube is in a convex shape, and the convex-shaped top of the excimer lamp tube is clamped in the cylindrical groove at the bottom of the upper bracket.

[0015] In a preferred embodiment of the present invention, the outer periphery of the top of the upper bracket, the top of the outer quartz sleeve, and the outer periphery of the bottom of the flow guiding valve body are sealed and connected by an inner sealing ring; a ring groove is recessed in the middle part of the bottom of the flow guiding valve body. The ring groove is convenient for better sealing and fixing the outer quartz sleeve; a groove is recessed in the top side part of the outer ring surface of the upper bracket, and the circular ring groove matches with the annular protrusion in the middle part of the bottom of the flow guiding valve body;

[0016] The right part of the longitudinal section of the inner sealing ring is in a shape like a Chinese character 'yu', the top of the 'yu'-shaped part of the inner sealing ring is clamped in the annular groove of the flow guide valve body, and the inner bottom of the 'yu'-shaped part abuts against the bottom of the groove of the upper bracket; the top of the outer quartz sleeve is clamped inside the bottom of the 'yu'-shaped part of the inner sealing ring.

[0017] 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 turning of the cavity; the top and bottom sides of the lower bracket are in an M shape; several hooks are arranged inside the upper part of the lower bracket, and the several hooks support the bottom end surface of the outer quartz sleeve.

[0018] In a preferred embodiment of the present invention, an excimer lamp starting power supply is arranged at the top of the flow 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 head are sequentially arranged on the outer periphery of the bottom of the excimer lamp tube.

[0019] The beneficial effects of the present invention are as follows: for an excimer ultraviolet sterilizer, the structures of the liquid inlet and the liquid outlet are the same as those of the water inlet and the water outlet of a common filter, which is convenient for direct installation and use without the need to configure installation connection joints; the central axes of the liquid inlet and the liquid outlet are close to each other and are horizontally arranged, which is convenient for connecting with the water inlet pipe and the water outlet pipe.

[0020] Both the excimer lamp tube and the outer quartz sleeve are made of materials with very high ultraviolet transmittance. The liquid flow channels of the water inlet and the water outlet are not linearly conducted, but are U-shaped spiral flows; when the liquid flows through the outer layer and the inner layer of the working cavity, it can receive the ultraviolet light emitted by the lamp tube and thus be sterilized; in this way, compared with a conventional sterilizer, it can obtain a longer sterilization time and a larger sterilization dose, achieving a better sterilization effect.

[0021] The sterilizer is equipped with an excimer lamp tube as the sterilization light source; the excimer lamp tube has the characteristics of a long switching life and a rapid establishment of ultraviolet intensity, and is very suitable for working under the working conditions of rapid start-up and frequent on-off; through our experimental tests, the excimer lamp tube can efficiently output ultraviolet radiation instantly when powered on (the reaction time is less than 1 second), and can achieve a flash-off life test of up to 300,000 times; it can well adapt to the special working conditions requirements in the water purification fields such as families, restaurants, hospitals, and hotels. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of an excimer ultraviolet sterilizer of the present invention.

[0023] Figure 2 It is a side view of an excimer ultraviolet sterilizer of the present invention.

[0024] Figure 3 It is a schematic structural view of the upper bracket of the present utility model.

[0025] Figure 4 It is a schematic structural view of the lower bracket of the present utility model.

[0026] Reference numerals in the drawings:

[0027] 11. Outer cylinder body, 12. Outer layer quartz sleeve, 13. Excimer lamp tube, 14. Cavity; 15. Inner electrode.

[0028] 21. Flow guiding valve body, 22. Liquid inlet, 23. Liquid outlet; 24. Liquid inlet channel, 25. Liquid outlet channel.

[0029] 31. Upper bracket, 311. First upper support piece, 312. Second upper support piece; 32. Inner sealing ring; 33. Lower bracket, 331. M-shaped, 332. Hook; 34. Ring nut.

[0030] 41. Excimer lamp starting power supply, 42. Input cable; 43. Sealing nut, 44. Cable lock head; 45. Ultraviolet window, 46. Hanging bracket, 47. Drain hole. Specific embodiments

[0031] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0032] Refer to Figures 1 to 2 , what is shown in the figure is an excimer ultraviolet sterilizer, including: an outer cylinder body 11, an outer layer quartz sleeve 12, and an excimer lamp tube 13. The excimer lamp tube 13, the outer layer quartz sleeve 12, and the outer cylinder body 11 are sleeved in sequence from the inside to the outside along the longitudinal direction. An inner electrode 15 of the excimer lamp is coaxially arranged inside the excimer lamp tube 13; the bottom of the outer cylinder body 11 is fixedly connected to the bottom of the excimer lamp tube 13; a U-shaped cavity 14 is respectively formed between the inner wall of the outer cylinder body 11 and the outer wall of the outer layer quartz sleeve 12, and between the inner wall of the outer layer quartz sleeve 12 and the outer wall of the excimer lamp tube 13; a flow guiding valve body 21, a liquid inlet 22, and a liquid outlet 23. The liquid inlet 22 and the liquid outlet 23 are respectively radially arranged on the flow guiding valve body 21; the top of the outer cylinder body 11 is detachably connected to the flow guiding valve body 21, and the liquid inlet 22, the cavity 14, and the liquid outlet 23 are sequentially communicated for liquid to flow through.

[0033] The structures of the liquid inlet 22 and the liquid outlet 23 of the present utility model are the same as the structures of the water inlet and outlet of a common filter, 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 to each other and horizontally arranged, which is convenient for connecting with the water inlet pipe and the water outlet pipe.

[0034] In addition, since both the excimer lamp tube 13 and the outer quartz sleeve 12 are made of materials with very high ultraviolet transmittance, the liquid flow channels at the water inlet and the water outlet are not linearly connected, but are U-shaped and spiral; when the liquid flows through the outer layer and the inner layer of the working cavity 14, it can receive the ultraviolet light emitted by the excimer lamp tube 13 and thus be sterilized; in this way, compared with conventional sterilizers, a longer sterilization time and a larger sterilization range can be obtained, the liquid sterilization path range is wide, and a better sterilization effect can be achieved.

[0035] The sterilizer is equipped with an excimer lamp tube as the sterilization light source; the excimer lamp tube 13 has the characteristics of a long switching life and a rapid establishment of ultraviolet intensity, and is very suitable for working under the conditions of rapid start-up and frequent on-off; through our experimental tests, the excimer lamp tube 13 can efficiently output ultraviolet radiation instantly when powered on (the reaction time is less than 1 second), and can achieve a flash-off life test of up to 3 times 10^5 times; it can well adapt to the special working conditions requirements in water purification fields such as families, restaurants, hospitals, and hotels.

[0036] 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 communicated with the outer top of the U-shaped of the cavity 14, and the liquid outlet 23 is communicated with the inner top of the U-shaped 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 first half of the liquid outlet channel 25 are coaxially arranged.

[0037] Furthermore, an external thread is provided at the lower part of the outer ring surface of the diversion valve body 21, a flanging is provided at the upper port of the outer cylinder 11 of the sterilizer housing, and the external thread of the diversion valve body 21 and the flanging of the outer cylinder 11 are connected and fixed through an annular nut 34, and sealing is achieved through two-stage outer sealing rings at the connection contact surface.

[0038] The above 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 the water outlet on a straight line for convenient installation and connection, but also can realize the diversion function required for the operation of the new sterilizer; the water inlet and the water outlet are not linearly connected, but are arranged on the same axis for convenient connection with the water inlet pipe and the water outlet pipe.

[0039] In this preferred embodiment, combined with Figure 3 , an upper bracket 31 is provided 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 convex-shaped; the upper bracket 31 and the excimer lamp tube 13 are coaxially arranged.

[0040] Further, the upper bracket 31 is formed by welding two vertically intersecting upper support pieces (stainless steel sheets), that is, the upper bracket 31 includes a first upper support piece 311 and a second upper support piece 312. The longitudinal sections of the first upper support piece 311 and the second upper support piece 312 are respectively in a convex shape; the top protrusion of the upper bracket 31 is clamped at the entrance of the liquid outlet channel 25; the middle part of the bottom of the upper bracket 31 is recessed inward to form a cylindrical groove. The longitudinal section of the top of the excimer lamp tube 13 is in a convex shape, 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.

[0041] Specifically, the upper bracket 31 is constructed by thin stainless steel wires with a diameter of 1 - 1.5 mm; the top of the upper bracket 31 is fitted and clamped with the central inner hole of the diversion valve body 21. The above upper bracket 31 can not only position the lamp tail end of the excimer lamp tube 13, but also has no influence on the flow of the working liquid.

[0042] Further, a sealing connection is made between the outer periphery of the top of the upper bracket 31, the top of the outer quartz sleeve 12, and the outer periphery of the bottom of the diversion valve body 21 through an inner sealing ring 32; a ring groove is recessed in the middle part of the bottom of the diversion valve body 21, and the ring groove is convenient for better sealing and fixing the outer quartz sleeve 12; a groove is recessed in the top side part of the outer ring surface of the upper bracket 31, and the circular ring groove matches with the annular protrusion in the middle part 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', and the top of the 'yu'-shaped inner sealing ring 32 is clamped in the ring groove of the diversion valve body 21, and the inner bottom of the 'yu'-shaped part 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'-shaped part 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.

[0043] In this preferred embodiment, combined with Figure 4 , a lower bracket 33 is arranged between the inner bottom of the outer cylinder 11 and the bottom of the outer quartz sleeve 12. The lower bracket 33 is located at the U-shaped bottom turning of the cavity 14; the top and bottom sides (in the elevation view) of the lower bracket 33 are in an M shape 331; several hooks 332 are arranged inside the upper part of the lower bracket 33, and the several hooks support the bottom end face of the outer quartz sleeve 12.

[0044] Specifically, the lower bracket 33 is also constructed by thin stainless steel wires with a diameter of 1 - 1.5 mm. 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 part 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 it provides radial positioning for the lower wire bracket; four hook-shaped structures (hooks) are arranged 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 also does not hinder the flow of the working liquid.

[0045] In this preferred embodiment, an excimer lamp starting power supply 41 is provided at the top of the flow guiding valve body 21. 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 gland 44 are sequentially arranged on the outer periphery of the bottom of the excimer lamp tube 13.

[0046] Specifically, the bottom of the excimer lamp starting power supply 41 is connected and installed to the top of the flow guiding valve body 21 through an excimer lamp power supply bracket. The excimer lamp power supply bracket integrates the excimer lamp starting power supply 41 and the sterilizer into one, eliminating the need to find another installation position for the excimer lamp starting power supply 41. An ultraviolet viewing window 45 is provided at the connection between the outer periphery of the bottom of the excimer lamp starting power supply 41 and the flow guiding valve body 21, facilitating the observation of the working condition of the ultraviolet sterilizer and timely problem detection. The inner ring surface of the sleeve sealing nut 43 and the cable gland 44 are fixed by threaded connection to connect the lamp input cable 42. 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, providing electrical energy for the operation of the excimer lamp tube 13.

[0047] Specifically, in addition, a circular protrusion is vertically provided downward at the lower middle part of the outer cylinder 11. An external thread is provided 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 is sealed with the excimer lamp tube 13 and the outer cylinder 11 of the housing through a matching O-ring. A drain hole 47 is provided on one side of the bottom of the outer ring surface of the outer cylinder 11. By opening the valve connected to the drain 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 water inlet and outlet of the sterilizer are reversely connected under certain 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 together.

[0048] In this embodiment, the diameter of the lower part of the outer cylinder 11 of the sterilizer housing gradually decreases; the diameter of the outer quartz sleeve 12 is larger than that of the excimer lamp tube 13 and is sleeved outside the excimer lamp tube 13. The top of the excimer lamp tube 13 is a semi-circular head closed structure and the bottom is open, and the lamp input cable 42 can enter through this opening. The cable is connected to the inner electrode 15 of the single-end type excimer lamp through a lamp socket; the inner electrode 15 of the excimer lamp is placed inside the excimer lamp tube 13 to prevent it from contacting the liquid.

[0049] A sterilizer hanging bracket 46 is also provided at the top of the flow guiding valve body 21. When the sterilizer hanging bracket 46 is connected to the sterilizer in a hose manner, it is used to install and fix the sterilizer; or the sterilizer hanging bracket 46 is not used and the sterilizer is directly fixedly installed in a hard pipe connection manner.

[0050] When in use, the sterilizer can be directly connected to the pipeline to be treated at its water inlet, and then the output pipeline can be continuously connected to its water outlet. There is no need to first find an installation position for the sterilizer like a conventional sterilizer, and then configure accessories such as elbows according to the installation position of the sterilizer to connect the corresponding pipelines; moreover, it is necessary to separately install the alignment molecular lamp starting power supply 41, which greatly reduces the installation workload and the space occupied by the installation.

[0051] The basic working principle of the present utility model is as follows:

[0052] First, after the liquid flows in through the water inlet of the sterilizer of the present invention, it enters the outer space of the working cavity 14 formed between the outer cylinder 11 of the sterilizer housing and the outer wall of the outer quartz sleeve 12 through the water inlet hole (liquid inlet channel 24) on the diversion valve body 21, and flows downward under the push of the water pressure in this area. Then, when the liquid reaches the lower part of the cavity 14, since the lower bracket 33 allows the water flow to pass through; the liquid continues to flow upward through the inner space of the working cavity 14 formed between 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 diversion valve body 21 through the upper bracket 31 and the water outlet hole (liquid outlet channel 25) of the diversion 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; thus, the entire flow process of the liquid in the sterilizer is completed.

[0053] With this new structure, the upper bracket 31, the lower bracket 33, and various sealing rings are convenient for replacing the lamp tube; components such as the excimer lamp tube 13, the outer quartz sleeve 12, and the cylinder of the sterilizer can be easily disassembled and cleaned, which is more beneficial to ensuring the long-term and efficient operation of the sterilizer.

[0054] The above shows and describes the basic principle, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An excimer ultraviolet sterilizer, characterized in that, Comprising: An outer cylinder, an outer quartz sleeve, and an excimer lamp tube. The excimer lamp tube, the outer quartz sleeve, and the outer cylinder are sleeved in sequence from the inside to the outside along the longitudinal direction. 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 tube. A U-shaped cavity is respectively 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 tube. A flow guiding valve body, a liquid inlet, and a liquid outlet. The liquid inlet and the liquid outlet are respectively radially arranged on the flow guiding valve body. The top of the outer cylinder is detachably connected to the flow guiding valve body. The liquid inlet, the cavity, and the liquid outlet are sequentially communicated for liquid to flow through.

2. The excimer ultraviolet sterilizer according to claim 1, characterized in that, The liquid inlet and the liquid outlet are arranged on the same axis in the horizontal direction. The liquid inlet is communicated with the outer top of the U-shaped of the cavity, and the liquid outlet is communicated with the inner top of the U-shaped 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 respectively in an L shape. The outer cylinder, the outer quartz sleeve, the excimer lamp tube, and the first half of the liquid outlet channel are coaxially arranged.

3. The excimer ultraviolet sterilizer according to claim 1, characterized in that, External threads are provided on the lower part of the outer ring surface of the flow guiding valve body. An outward flange is provided at the upper port of the outer cylinder of the sterilizer housing. The external threads of the flow guiding valve body and the outward flange of the outer cylinder are connected and fixed by an annular nut, and sealed by two-stage outer sealing rings at the connection contact surface.

4. The excimer ultraviolet sterilizer according to claim 2, wherein An upper bracket is arranged between the top of the excimer lamp tube and the inlet of the liquid outlet channel. The longitudinal section of the upper bracket is in a convex shape. The upper bracket and the excimer lamp tube are coaxially arranged.

5. The excimer ultraviolet sterilizer according to claim 4, characterized in that, The upper bracket is welded by two vertically crossed upper support pieces. The top convex part of the upper bracket is clamped at the inlet of the liquid outlet channel. The middle part of the bottom of the upper bracket is recessed inward to form a cylindrical groove. The longitudinal section of the top of the excimer lamp tube is in a convex shape, and the convex-shaped top of the excimer lamp tube is clamped in the cylindrical groove at the bottom of the upper bracket.

6. The excimer ultraviolet sterilizer according to claim 5, wherein Sealing connection is carried out between the outer periphery of the top of the upper bracket, the top of the outer quartz sleeve, and the outer periphery of the bottom of the flow guiding valve body by an inner sealing ring. A ring groove is recessed in the middle part of the bottom of the flow guiding valve body, and the ring groove is convenient for better sealing and fixing the outer quartz sleeve. A groove is recessed in the top side part of the outer ring surface of the upper bracket, and the circular ring groove matches with the annular protrusion in the middle part of the bottom of the flow guiding valve body. The right part of the longitudinal section of the inner sealing ring is in a shape like the Chinese character 'yu'. The top of the 'yu'-shaped of the inner sealing ring is clamped in the ring groove of the flow guiding valve body, and the inner bottom of the 'yu'-shaped abuts against the bottom of the groove of the upper bracket. The top of the outer quartz sleeve is clamped inside the bottom of the 'yu'-shaped of the inner sealing ring.

7. An excimer ultraviolet sterilizer according to claim 1, characterized in that, A lower bracket is arranged between the inner bottom of the outer cylinder and the bottom of the outer quartz sleeve. The lower bracket is located at the U-shaped bottom turning of the cavity. The top and bottom sides of the lower bracket are in an M shape. A plurality of hooks are arranged inside the upper part of the lower bracket, and the plurality of hooks support the bottom end surface of the outer quartz sleeve.

8. An excimer ultraviolet sterilizer according to claim 1, characterized in that, An excimer lamp starting power supply is provided at the top of the flow guiding valve body. 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 gland are sequentially arranged on the outer periphery of the bottom of the excimer lamp tube.

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