Sterilization device and water purifier

Abstract

The sterilization device comprises a mercury lamp, a light-transmitting tube and a shell, the light-transmitting tube comprises a tube body, the section of the tube body is in a U shape in the length direction of the mercury lamp, the tube body is arranged outside the mercury lamp in a sleeved mode, and the tube body is arranged in a hollow mode and used for containing first fluid; the shell is arranged outside the light-transmitting tube in a sleeving mode, and a flowing space used for containing second fluid is defined by the shell and the outer wall of the light-transmitting tube. The tube body can completely cover the mercury lamp, and the light-transmitting tube is light-transmitting, so that light emitted by the mercury lamp can penetrate through the inner layer of the light-transmitting tube and is in full contact with the first fluid in the light-transmitting tube for sterilization; the light entering the light-transmitting tube can sequentially penetrate through the first fluid and the outer layer of the light-transmitting tube and is in full contact with the second fluid in the flowing space for sterilization, so that the first fluid and the second fluid are fully sterilized and disinfected at the same time through one mercury lamp; therefore, the overall size of the sterilization device can be reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a sterilization device and a water purifier. Background Art

[0002] Water purifiers usually use reverse osmosis technology to effectively remove impurities and harmful substances in water. Currently, the raw water in the reverse osmosis water system usually contains microorganisms, which may become a source of contamination for the membrane elements. Therefore, the raw water is usually sterilized before the membrane elements.

[0003] The purified water after being filtered by the membrane element usually needs to be sterilized again. Therefore, in the prior art, two sterilization machines are usually used to sterilize the raw water and purified water respectively, which occupies a large space and has a high cost. Utility Model Content

[0004] Based on this, it is necessary to provide a sterilization device and a water purifier to address the above problems, wherein the sterilization device can sterilize raw water and purified water at the same time.

[0005] The utility model provides a sterilization device, comprising: a mercury lamp; a light-transmitting tube, comprising a tube body, wherein the cross-section of the tube body is U-shaped along the length direction of the mercury lamp and is sleeved outside the mercury lamp, the tube body is hollow and is used to accommodate a first fluid; and an outer shell, which is sleeved outside the light-transmitting tube and forms a flow space for accommodating a second fluid together with the outer wall of the light-transmitting tube.

[0006] In the above-mentioned sterilization device, the tube body can be completely covered outside the mercury lamp, and the light-transmitting tube is light-transmitting, so that the light emitted by the mercury lamp can pass through the inner layer of the light-transmitting tube and fully contact with the first fluid in the light-transmitting tube for sterilization, and the light entering the light-transmitting tube can also pass through the first fluid and the outer layer of the light-transmitting tube in turn and fully contact with the second fluid in the flow space for sterilization, thereby achieving full sterilization and disinfection of the first fluid and the second fluid at the same time by one mercury lamp, and the structure of the sterilization device is simple, so that the overall volume of the sterilization device can be reduced and the cost can be reduced.

[0007] In one of the embodiments, the sterilization device further comprises a fixing ring sleeved on the outer periphery of the tube body, and the outer peripheral wall of the fixing ring is in contact with the inner wall of the outer shell.

[0008] With such arrangement, the fixing ring can support and fix the tube body, thereby preventing the tube body from tilting and colliding with the housing or the mercury lamp, thereby preventing the tube body or the mercury lamp from breaking.

[0009] In one embodiment, the number of the fixing rings is at least two, and at least two of the fixing rings are arranged at intervals along the length direction of the mercury lamp.

[0010] Such an arrangement can improve the stability and reliability of the tube body and prevent the end of the tube body where the fixing ring is not arranged from tilting.

[0011] In one embodiment, the fixing ring is configured as a silicone member.

[0012] With such an arrangement, when the sterilization device is subjected to external impact, the fixing ring made of silicone material can buffer the tube body, thereby preventing the tube body from being damaged and thus protecting the tube body.

[0013] In one embodiment, the shell is provided with a water inlet and a water outlet arranged at intervals along the length direction of the mercury lamp; the light-transmitting tube is also provided with a water inlet pipe and a water outlet pipe extending from the tube body to the outside of the shell, and the water inlet pipe and the water outlet pipe are arranged at intervals along the length direction of the mercury lamp.

[0014] This arrangement enables water circulation and improves sterilization efficiency.

[0015] In one embodiment, the outer diameter of the water inlet pipe is smaller than the inner diameter of the water inlet, and the water inlet pipe extends to the outside of the outer shell through the water inlet; the outer diameter of the water outlet pipe is smaller than the inner diameter of the water outlet, and the water outlet pipe extends to the outside of the outer shell through the water outlet.

[0016] Such an arrangement can simplify the structure of the outer shell, ensure that the overall appearance of the sterilization device is neat, and will not affect the normal inflow of the second fluid from the water inlet and outflow of the second fluid from the water outlet.

[0017] In one embodiment, the sterilization device also includes a first three-way pipe connected to the water inlet, the first three-way pipe includes a first water inlet end and a second water inlet end, the water inlet pipe passes through the water inlet and the first water inlet end in sequence, and is sealed with the first water inlet end; and / or, the sterilization device also includes a second three-way pipe connected to the water outlet, the second three-way pipe includes a first water outlet end and a second water outlet end, the water outlet pipe passes through the water outlet and the first water outlet end in sequence, and is sealed with the first water outlet end.

[0018] Such an arrangement can facilitate the connection of the sterilization device with the external device, and make the water path of the first fluid and the water path of the second fluid not interfere with each other, thereby avoiding affecting the water quality.

[0019] In one embodiment, the housing includes a shell and a cover that are detachably connected, and the sterilization device also includes a sealing member disposed between the shell and the cover.

[0020] Such an arrangement enables the user to replace only the mercury lamp when the mercury lamp is damaged, and other components except the mercury lamp can be reused, so as to extend the service life of the sterilization device and reduce costs.

[0021] In one embodiment, the cover is provided with a through hole, and the mercury lamp includes a lamp body and a fixing portion which are connected to each other, and the fixing portion is clamped in the through hole.

[0022] This arrangement ensures the stability of the lamp body in the tube body and prevents the lamp body from colliding with the tube body and causing the mercury lamp or the tube body to break.

[0023] The utility model also provides a water purifier, comprising the sterilization device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a sterilization device according to one embodiment of the utility model;

[0026] Figure 2 The utility model provides Figure 1 Schematic cross-sectional view of ;

[0027] Figure 3 The utility model provides Figure 2 The enlarged schematic diagram of point A in the middle;

[0028] Figure 4 The utility model provides Figure 2 Schematic diagram of fluid flow.

[0029] Figure numerals: 1. mercury lamp; 11. lamp body; 12. fixing part; 13. power cord; 2. light-transmitting tube; 21. tube body; 22. water inlet pipe; 23. water outlet pipe; 3. outer shell; 31. water inlet; 32. water outlet; 33. shell; 331. first shell; 332. second shell; 34. cover body; 341. through hole; 342. force-applying part; 4. fixing ring; 5. first three-way pipe; 51. first water inlet end; 52. second water inlet end; 6. second three-way pipe; 61. first water outlet end; 62. second water outlet end; 7. sealing member. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0035] Water purifiers usually use reverse osmosis technology to effectively remove impurities and harmful substances in water. At present, the raw water in the reverse osmosis water system usually contains microorganisms, which may become a source of contamination for the membrane elements. In order to protect the membrane elements, the raw water is usually sterilized before the membrane elements to reduce the microorganisms in the raw water. The purified water after being filtered by the membrane element usually needs to be sterilized again to ensure the safety of the purified water quality. Therefore, in the prior art, two sterilization machines are usually used to sterilize the raw water and purified water respectively, which takes up a large space and has a high cost.

[0036] In order to solve the above problems, Figures 1 to 4 As shown, the utility model provides a sterilization device, which can sterilize raw water and purified water at the same time, has a simple structure and low cost.

[0037] like Figure 1 to Figure 2 As shown, specifically, the sterilization device includes a mercury lamp 1, a light-transmitting tube 2 and a shell 3, wherein: the light-transmitting tube 2 includes a tube body 21, the cross-section of the tube body 21 is U-shaped along the length direction of the mercury lamp 1, and is sleeved outside the mercury lamp 1, the tube body 21 is hollow, and is used to accommodate a first fluid; the shell 3 is sleeved outside the light-transmitting tube 2, and together with the outer wall of the light-transmitting tube 2, forms a flow space for accommodating a second fluid.

[0038] Among them, the tube body 21 includes a U-shaped inner layer and a U-shaped outer layer, the U-shaped opening ends of the inner layer and the outer layer are connected to each other, the inner layer is sleeved outside the mercury lamp 1, the outer layer is sleeved outside the inner layer, and together with the inner layer, a flow space for accommodating the first fluid is formed, and the outer shell 3 is sleeved outside the outer layer.

[0039] In the sterilization device provided by the embodiment of the utility model, the mercury lamp 1 can emit ultraviolet rays, and the energy of ultraviolet rays can cause genetic material to mutate, so that the microorganisms in the first fluid or the second fluid die or cannot reproduce, thereby achieving the purpose of sterilization; since the cross-section of the tube body 21 is U-shaped, the tube body 21 can be completely covered outside the mercury lamp 1, and the light-transmitting tube 2 is light-transmitting, so that the light emitted by the mercury lamp 1 can pass through the inner layer of the light-transmitting tube 2 and fully contact with the first fluid in the light-transmitting tube 2 for sterilization, and the light entering the light-transmitting tube 2 can also pass through the first fluid and the outer layer of the light-transmitting tube 2 in turn and fully contact with the second fluid in the flow space for sterilization, thereby achieving full sterilization and disinfection of the first fluid and the second fluid at the same time by one mercury lamp 1, and the structure of the sterilization device is simple, so that the overall volume of the sterilization device can be reduced and the cost can be reduced.

[0040] Among them, since the purified water contains fewer impurities and harmful substances after the reverse osmosis technology, and has a higher light transmittance, in the illustrated embodiment, the first fluid is purified water and the second fluid is raw water. Of course, in other embodiments, the first fluid can also be raw water and the second fluid can be purified water; or the sterilization device can also be used to sterilize other fluids, as long as the first fluid is translucent, so that the second fluid can pass through the first fluid and contact with the light of the mercury lamp 1 for sterilization, the embodiment of the utility model does not make specific restrictions here.

[0041] like Figures 2 to 3 As shown, the housing 3 is provided with a water inlet 31 and a water outlet 32 ​​arranged at intervals along the length direction of the mercury lamp 1. The water inlet 31 can be connected to the raw water tank or water source, and the water outlet 32 ​​can be connected to the water inlet end of the reverse osmosis waterway. The raw water enters the flow space surrounded by the outer wall of the housing 3 and the light-transmitting tube 2 through the water inlet 31, and after being sterilized by the light emitted by the mercury lamp 1, it flows out through the water outlet 32 ​​to the reverse osmosis waterway. The light-transmitting tube 2 is also provided with a water inlet pipe 22 and a water outlet pipe 23 extending from the tube body 21 to the outside of the housing 3, and the water inlet pipe 22 and the water outlet pipe 23 are arranged at intervals along the length direction of the mercury lamp 1. The water inlet pipe 22 can be connected to the water outlet end of the reverse osmosis waterway, and the water outlet pipe 23 can be connected to the clean water tank or the outlet of the water purifier. The clean water treated by the reverse osmosis waterway enters the tube body 21 through the water inlet pipe 22, and after being sterilized by the light emitted by the mercury lamp 1, it flows out through the water outlet pipe 23. To achieve water circulation and improve sterilization efficiency.

[0042] In one embodiment, the outer shell 3 may also have two avoidance holes (not shown) arranged corresponding to the water inlet pipe 22 and the water outlet pipe 23 and spaced apart from the water inlet 31 and the water outlet 32. The water inlet pipe 22 and the water outlet pipe 23 extend to the outside of the outer shell 3 through the two avoidance holes respectively and are sealed and connected to the avoidance holes to prevent raw water from flowing out of the avoidance holes.

[0043] like Figures 2 to 3 As shown, in the illustrated embodiment, the outer diameter of the water inlet pipe 22 is smaller than the inner diameter of the water inlet 31, and the water inlet pipe 22 extends to the outside of the housing 3 through the water inlet 31; the outer diameter of the water outlet pipe 23 is smaller than the inner diameter of the water outlet 32, and the water outlet pipe 23 extends to the outside of the housing 3 through the water outlet 32. The water inlet pipe 22 extends out of the housing 3 through the water inlet 31, and the water outlet pipe 23 extends out of the housing 3 through the water outlet 32, thereby simplifying the structure of the housing 3, and no additional holes are required on the housing 3, so as to ensure that the overall appearance of the sterilization device is neat, and it will not affect the normal flow of raw water from the water inlet 31 and the outflow of raw water from the water outlet 32.

[0044] like Figure 2 and Figure 4As shown, the sterilization device also includes a first three-way pipe 5 connected to the water inlet 31, the first three-way pipe 5 includes a first water inlet end 51 and a second water inlet end 52, the water inlet pipe 22 passes through the water inlet 31 and the first water inlet end 51 in sequence, and is sealed and connected to the first water inlet end 51. The second water inlet end 52 can be connected to a raw water tank or a water source, and the gap between the water inlet pipe 22 and the water inlet 31 and the first three-way pipe 5 is used to circulate raw water. The water inlet pipe 22 is sealed and connected to the first water inlet end 51 to prevent the raw water from flowing out of the first water inlet end 51. The sterilization device also includes a second three-way pipe 6 connected to the water outlet 32, the second three-way pipe 6 includes a first water outlet end 61 and a second water outlet end 62, the water outlet pipe 23 passes through the water outlet 32 ​​and the first water outlet end 61 in sequence, and is sealed and connected to the first water outlet end 61. The second water outlet 62 can be connected to the water inlet of the reverse osmosis waterway, and the gap between the water outlet pipe 23, the water outlet 32 ​​and the second three-way pipe 6 is used to circulate raw water. The water outlet pipe 23 is sealed and connected to the first water outlet 61 to prevent the raw water from flowing out of the first water outlet 61. The first three-way pipe 5 and the second three-way pipe 6 can facilitate the connection of the sterilization device with the raw water tank, the reverse osmosis waterway and the clean water tank, and make the raw water waterway and the clean water waterway not interfere with each other to avoid affecting the quality of the clean water.

[0045] Specifically, along Figure 4 In the path b shown, the raw water flows into the first three-way pipe 5 through the second water inlet end 52, and flows into the flow space surrounded by the outer wall of the housing 3 and the light-transmitting tube 2 through the water inlet 31. After being sterilized by the light of the mercury lamp 1, the raw water flows out of the flow space through the water outlet 32, and flows out through the second water outlet end 62 of the second three-way pipe 6. Figure 4 In the path a shown, clean water flows into the tube body 21 through the water inlet pipe 22 , is sterilized by the light of the mercury lamp 1 , and then flows out of the tube body 21 through the water outlet pipe 23 .

[0046] like Figures 2 to 3 As shown, the first three-way pipe 5 and the water inlet 31 and the second three-way pipe 6 and the water outlet 32 ​​can be fixed and sealed by a clamp to ensure the stability and reliability of the connection between the first three-way pipe 5 and the second three-way pipe 6 and the housing 3, and at the same time, it can also prevent the raw water from flowing out of the gap between the housing 3 and the first three-way pipe 5 or the second three-way pipe 6. Similarly, the first water inlet end 51 and the water inlet pipe 22 and the first water outlet end 61 and the water outlet pipe 23 can also be sealed by a clamp to prevent the raw water from flowing out of the first water inlet end 51 or the first water outlet end 61.

[0047] like Figures 2 to 3 As shown, the sterilization device further includes a fixing ring 4 sleeved on the outer circumference of the tube body 21, and the outer circumferential wall of the fixing ring 4 is in contact with the inner wall of the housing 3. To ensure the light transmittance of the tube body 21, the tube body 21 is usually made of glass. The fixing ring 4 can support and fix the tube body 21 to prevent the tube body 21 from tilting and colliding with the housing 3 or the mercury lamp 1, thereby preventing the tube body 21 or the mercury lamp 1 from breaking.

[0048] like Figure 2 As shown, the number of the fixing rings 4 is at least two, and at least two fixing rings 4 are arranged at intervals along the length direction of the mercury lamp 1. In order to ensure the sterilization effect on raw water and purified water, the length of the mercury lamp 1 and the tube body 21 is usually long, so the provision of two fixing rings 4 can improve the stability and reliability of the tube body 21 and prevent the end of the tube body 21 where the fixing ring 4 is not provided from tilting.

[0049] Among them, the fixing ring 4 is set as a silicone member. The silicone member has a certain elasticity. When the sterilization device is subjected to external impact, the fixing ring 4 made of silicone material can buffer the tube body 21 to prevent the tube body 21 from being damaged, thereby protecting the tube body 21. In addition, silicone members are cheap and easy to obtain, and also have good corrosion resistance and aging resistance, thereby extending the service life. When the sterilization device is used to sterilize purified water, the fixing ring 4 is set as a food-grade silicone material to ensure the safety of purified water quality.

[0050] like Figures 2 to 3 As shown, the housing 3 includes a detachably connected housing 33 and a cover 34, and the sterilization device further includes a seal 7 disposed between the housing 33 and the cover 34. The cover 34 is detachably connected to the housing 33, so that the user can only replace the mercury lamp 1 when the mercury lamp 1 is damaged, and other components except the mercury lamp 1 can be reused to extend the service life of the sterilization device and reduce costs. The seal 7 can ensure the sealing between the housing 33 and the cover 34, and prevent the raw water from flowing out of the gap between the housing 33 and the cover 34.

[0051] In the illustrated embodiment, the cover 34 and the housing 33 can be connected by threaded fit to facilitate installation or removal by the user. Of course, in other embodiments, the cover 34 and the housing 33 can also be detachably connected by screws, buckles, or other methods, as long as the stability and reliability of the two in the assembled state can be guaranteed, and the embodiment of the utility model is not specifically limited here.

[0052] In addition, the outer wall of the cover 34 is provided with a force-applying portion 342 for increasing friction to prevent the user from slipping when installing or removing the cover 34. The force-applying portion 342 can be configured as strip-shaped convex ribs arranged at intervals along the circumference of the cover 34 as shown in the figure, or can be other structures that can increase friction, such as protrusions, grooves, wavy protrusions or serrated structures.

[0053] like Figure 1 to Figure 2As shown, in the illustrated embodiment, since the light-transmitting tube 2 includes a U-shaped tube body 21, a water inlet pipe 22 and a water outlet pipe 23, for ease of assembly, the housing 33 can be provided with two parts, a first housing 331 and a second housing 332, and the second housing 332 is provided with a water inlet 31 and a water outlet 32. During assembly, the light-transmitting tube 2 is first matched with the second housing 332, so that the water inlet pipe 22 and the water outlet pipe 23 are respectively inserted into the water inlet 31 and the water outlet 32, and the fixing ring 4 is sleeved on the outside of the tube body 21, and then the first housing 331 and the second housing 332 are welded and fixed to ensure the sealing of the housing 33, and finally the first three-way pipe 5, the second three-way pipe 6, the mercury lamp 1 and the cover 34 and other structures are installed.

[0054] like Figure 1 to Figure 2 As shown, the cover 34 is provided with a through hole 341, and the mercury lamp 1 includes a lamp body 11 and a fixing portion 12 connected to each other, and the fixing portion 12 is clamped in the through hole 341. The mercury lamp 1 is fixed relative to the cover 34 to ensure the stability of the lamp body 11 in the tube body 21, and to prevent the lamp body 11 from colliding with the tube body 21 and causing the mercury lamp 1 or the tube body 21 to break. In addition, the fixing portion 12 can also extend a power cord 13 outward to connect to an external power source to power the mercury lamp 1.

[0055] The embodiment of the utility model also provides a water purifier, comprising the above-mentioned sterilization device.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A sterilization device, characterized in that: include: Mercury lamp (1); A light-transmitting tube (2), comprising a tube body (21), wherein along the length direction of the mercury lamp (1), the cross section of the tube body (21) is U-shaped and is sleeved outside the mercury lamp (1); the tube body (21) is hollow and is used to contain a first fluid; as well as, The outer shell (3) is sleeved outside the light-transmitting tube (2) and, together with the outer wall of the light-transmitting tube (2), forms a flow space for accommodating a second fluid.

2. The sterilization device according to claim 1, characterized in that: The sterilization device further comprises a fixing ring (4) sleeved on the outer circumference of the tube body (21), and the outer circumferential wall of the fixing ring (4) is in contact with the inner wall of the outer shell (3).

3. The sterilization device according to claim 2, characterized in that: The number of the fixing rings (4) is at least two, and the at least two fixing rings (4) are arranged at intervals along the length direction of the mercury lamp (1).

4. The sterilization device according to claim 2, characterized in that: The fixing ring (4) is configured as a silicone member.

5. The sterilization device according to claim 1, characterized in that: The housing (3) is provided with a water inlet (31) and a water outlet (32) arranged at intervals along the length direction of the mercury lamp (1); The light-transmitting tube (2) is further provided with a water inlet pipe (22) and a water outlet pipe (23) extending from the tube body (21) to the outside of the shell (3); the water inlet pipe (22) and the water outlet pipe (23) are arranged at intervals along the length direction of the mercury lamp (1).

6. The sterilization device according to claim 5, characterized in that: The outer diameter of the water inlet pipe (22) is smaller than the inner diameter of the water inlet (31), and the water inlet pipe (22) extends to the outside of the housing (3) through the water inlet (31); The outer diameter of the water outlet pipe (23) is smaller than the inner diameter of the water outlet (32), and the water outlet pipe (23) extends to the outside of the housing (3) through the water outlet (32).

7. The sterilization device according to claim 6, characterized in that: The sterilization device further comprises a first three-way pipe (5) connected to the water inlet (31), the first three-way pipe (5) comprising a first water inlet end (51) and a second water inlet end (52), the water inlet pipe (22) passes through the water inlet (31) and the first water inlet end (51) in sequence, and is sealedly connected to the first water inlet end (51); and / or, The sterilization device also includes a second three-way pipe (6) connected to the water outlet (32), the second three-way pipe (6) includes a first water outlet end (61) and a second water outlet end (62), and the water outlet pipe (23) passes through the water outlet (32) and the first water outlet end (61) in sequence and is sealed and connected to the first water outlet end (61).

8. The sterilization device according to claim 1, characterized in that: The housing (3) comprises a shell (33) and a cover (34) which are detachably connected, and the sterilization device further comprises a sealing member (7) arranged between the shell (33) and the cover (34).

9. The sterilization device according to claim 8, characterized in that: The cover body (34) is provided with a through hole (341); the mercury lamp (1) comprises a lamp body (11) and a fixing portion (12) which are connected to each other; the fixing portion (12) is clamped in the through hole (341).

10. A water purifier, characterized in that: Comprising a sterilization device as described in any one of claims 1-9.

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