Sterilization machine and sterilization process thereof

Abstract

The application relates to the technical field of sterilization equipment, in particular to a sterilization machine and a sterilization process thereof. The sterilization machine comprises a shell and multiple sterilization assemblies. The multiple sterilization assemblies are arranged in the shell. The sterilization assembly comprises a mercury lamp and multiple lamp tube covers. The two ends of the lamp tube cover around the circumferential direction of the mercury lamp are respectively referred to as a rotating end and a cover end, the rotating end can rotate to make the cover end abut against the outer peripheral wall surface of the mercury lamp or make the cover end separate from the outer peripheral wall surface of the mercury lamp. The sterilization machine of the application can meet the deep disinfection and deodorization requirements of the simultaneous working of ultraviolet rays and ozone in the unmanned scene by rotating and adjusting the lamp tube cover according to the scene requirements in use, and can be switched to the ozone-free mode in the manned scene, the operation is simple and convenient to control, and the sterilization machine can be adapted to diversified scenes.

Description

Technical Field

[0001] This invention relates to the field of sterilization equipment technology, specifically to a sterilization machine and its sterilization process. Background Technology

[0002] As a key device for inhibiting the spread of germs, sterilization machines are widely used in densely populated places such as hospitals, shopping malls, schools, and transportation vehicles (such as subways and buses). They disinfect the environment by radiating ultraviolet light through built-in ultraviolet germicidal lamps, blocking the path of germs to spread through air or contact, and reducing the risk of cross-infection.

[0003] Low-pressure mercury lamps are a common type of ultraviolet germicidal lamp. They utilize the excitation of low-pressure mercury vapor to emit ultraviolet light. Their emission spectrum mainly consists of two lines: one is a 253.7 nanometer wavelength, where the photon energy can directly destroy the molecular structure of bacteria, possessing strong bactericidal capabilities and being key to the core sterilization function of low-pressure mercury lamps; the other is a 185 nanometer wavelength. While this wavelength has weaker bactericidal capabilities, it can undergo a photochemical reaction with oxygen in the air, decomposing it into ozone (O3). Ozone has strong oxidizing properties, which not only helps kill germs in areas difficult for ultraviolet light to reach, but also adsorbs and decomposes odor molecules (such as odorous organic matter) in the environment, further enhancing disinfection and purification effects.

[0004] However, in practical use, the demand for ozone generation varies significantly across different scenarios. For example, in scenarios where people are present (such as hospital wards), excessively high ozone concentrations can irritate the respiratory tract, causing discomfort and even harming health; therefore, ozone generation must be avoided. In contrast, in unoccupied, enclosed environments (such as subway carriages after they have stopped running), ozone can be used for deep disinfection and deodorization. However, existing low-pressure mercury lamps have fixed spectral radiation characteristics, radiating both 253.7 nm and 185 nm ultraviolet light simultaneously during operation, inevitably resulting in ozone generation. This limitation prevents flexible switching based on scenario requirements, restricting the application range of sterilization machines and making them unsuitable for diverse usage scenarios. Summary of the Invention

[0005] This invention provides a sterilization machine and its sterilization process to solve the problem that existing sterilization machines cannot flexibly switch between low-pressure mercury lamps producing ozone according to the needs of the scenario, which limits the scope of application of the sterilization machine and makes it difficult to adapt to diverse application scenarios.

[0006] This invention provides a sterilization machine with the following technical solution: A sterilization machine includes a shell and multiple sterilization components, all of which are disposed within the shell; each sterilization component includes a mercury lamp and multiple lamp covers; the mercury lamp is installed within the shell and is arranged horizontally within the shell, the horizontal axis of the mercury lamp being referred to as the first direction; the mercury lamp is made of fully transparent quartz glass, and the lamp covers are made of ozone-free quartz glass; the multiple lamp covers are evenly distributed in the circumferential direction of the mercury lamp, and the two ends of the lamp covers in the circumferential direction of the mercury lamp are respectively referred to as the rotating end and the covering end; the rotating end is rotatably disposed around the first direction, and the rotation of the rotating end can cause the covering end to abut against the outer peripheral wall of the mercury lamp, or to disengage the covering end from the outer peripheral wall of the mercury lamp; and when the covering ends of the multiple lamp covers abut against the outer peripheral wall of the mercury lamp, the covering end of any lamp cover can connect with the rotating end of another lamp cover adjacent to it in the circumferential direction of the mercury lamp.

[0007] Furthermore, the lamp cover includes a first protruding section and a fitting section, which are evenly distributed around the circumferential direction of the mercury lamp. When the rotating end of the lamp cover rotates around the first direction until the covering end of the lamp cover abuts against the outer peripheral wall of the mercury lamp, the fitting section can fit against the outer peripheral wall of the mercury lamp. At this time, a first chamber is defined between the first protruding section and the outer peripheral wall of the mercury lamp, and the first chamber is used for water injection.

[0008] Furthermore, each lamp cover also has a second protruding section, the second protruding section and the first protruding section are arranged sequentially in the radial direction of the mercury lamp, the second protruding section is located on the side of the first protruding section away from the central axis of the mercury lamp in the radial direction of the mercury lamp, a second chamber is defined between the first protruding section and the second protruding section, and the first chamber and the second chamber are connected; the first chamber is used for filling with water or air, and the second chamber is used for filling with water.

[0009] Furthermore, a first transmission component is provided inside the outer casing. The first transmission component includes a first rotating plate and a first gear ring. The first rotating plate is located at one end of the lamp cover in a first direction and fits against the end of the lamp cover. The first rotating plate is coaxially arranged with the mercury lamp and rotates with the mercury lamp. The first gear ring is coaxial with the first rotating plate and is rotatably mounted on the first rotating plate around its own axis. Each rotating end of the lamp cover is provided with a rotating rod. One end of the rotating rod is arranged along the first direction and passes through the first rotating plate. A first gear is provided at the end of the rotating rod that passes through the first rotating plate. Multiple first gears are evenly distributed around the circumferential direction of the first gear ring and all mesh with the outer side of the first gear ring.

[0010] Furthermore, multiple lamp covers are arranged to rotate around the circumference of the mercury lamp.

[0011] Furthermore, a second transmission component is also provided inside the outer casing. The second transmission component includes a second rotating plate, a second gear ring, and a third gear ring. The second rotating plate is coaxially arranged with the mercury lamp and rotates with it. The first rotating plate and the second rotating plate are located at opposite ends of the lamp cover in the first direction and are attached to the end of the lamp cover. The second gear ring is coaxial with the second rotating plate and is rotatably mounted on the second rotating plate. The third gear ring is coaxial with the second gear ring and is fixedly mounted on the inner side of the second gear ring. The other end of the rotating rod passes through the second rotating plate in the first direction, and a second gear is provided at one end of the rotating rod that passes through the second rotating plate. Multiple second gears are evenly distributed around the circumferential direction of the third gear ring and all mesh with the inner side of the third gear ring.

[0012] Furthermore, the first rotating plate is provided with a first inlet pipe and a second inlet pipe, and the second rotating plate is provided with a first outlet pipe and a second outlet pipe. The first inlet pipe and the first outlet pipe are respectively connected to the two ends of the first chamber in a first direction, and the second inlet pipe and the second outlet pipe are respectively connected to the two ends of the second chamber in a first direction.

[0013] Furthermore, sealing strips are provided at both ends of the lamp cover in the first direction.

[0014] Furthermore, a grid plate is provided on the outer shell.

[0015] The present invention also provides a sterilization process for a sterilization machine, which includes the following steps: S10, activating the mercury lamps on multiple sterilization components;

[0016] S20, drive the rotating ends of multiple lamp covers to rotate around the first direction respectively, and rotate the covering end of the lamp cover until it is separated from the outer peripheral wall of the mercury lamp;

[0017] S30, drive the rotating ends of multiple lamp covers to rotate in opposite directions around the first direction, and make the covering ends of multiple lamp covers abut against the outer peripheral wall of the mercury lamp.

[0018] The beneficial effects of the present invention are as follows: The sterilization machine of the present invention sets multiple sterilization components in the outer shell. During use, the radiation state of 185 nanometer ultraviolet light can be controlled by rotating the lamp cover according to the needs of the usage scenario. It can meet the needs of deep disinfection and deodorization of ultraviolet light and ozone working at the same time in unmanned scenarios, and can also switch to ozone-free mode in occupied scenarios to avoid the stimulation of ozone to the human body. It is simple to operate and easy to control, and can be adapted to diverse usage scenarios. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a sterilization machine according to the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the sterilization components of an embodiment of a sterilization machine according to the present invention;

[0023] Figure 4 This is a front view of the sterilization component of an embodiment of a sterilization machine according to the present invention;

[0024] Figure 5 for Figure 4 Cross-sectional view at the middle edge BB;

[0025] Figure 6 for Figure 4 Sectional view at the center CC;

[0026] Figure 7 for Figure 4 Sectional view at the middle DD;

[0027] Figure 8 for Figure 4 Sectional view at the center of EE;

[0028] Figure 9 for Figure 8 Enlarged view at point F;

[0029] Figure 10 This is a diagram showing the state of multiple lamp covers in an embodiment of the present invention when they are rotated to detach from the outer peripheral wall of the mercury lamp.

[0030] Figure 11 This is a schematic diagram of the first rotating plate of an embodiment of a sterilization machine according to the present invention.

[0031] In the diagram: 100, outer shell; 101, grid plate; 110, first drive wheel; 120, second drive wheel; 200, sterilization component; 210, mercury lamp; 220, lamp cover; 221, rotating rod; 222, first protruding section; 223, fitting section; 224, first chamber; 225, second protruding section; 226, second chamber; 227, connecting hole; 230, lamp holder; 240, first transmission component; 241, first rotating plate; 242, first gear ring; 243, first gear; 244, first inlet pipe; 245, second inlet pipe; 246, through hole; 250, second transmission component; 251, second rotating plate; 252, second gear ring; 253, third gear ring; 254, second gear; 255, first outlet pipe; 256, second outlet pipe. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] An embodiment of a sterilization machine according to the present invention, such as... Figures 1 to 11 As shown.

[0034] A sterilization machine includes a housing 100 and multiple sterilization components 200, all of which are disposed within the housing 100. Each sterilization component 200 includes a mercury lamp 210 and multiple lamp covers 220. The mercury lamp 210 is fixedly installed within the housing 100 via a lamp holder 230 and is arranged horizontally within the housing 100. The horizontal axis of the mercury lamp 210 is referred to as the first direction. The mercury lamp 210 is made of fully transparent quartz glass, and the lamp covers 220 are made of ozone-free quartz glass.

[0035] Multiple lamp covers 220 are evenly distributed in the circumferential direction of the mercury lamp 210. The two ends of the lamp covers 220 in the circumferential direction of the mercury lamp 210 are respectively referred to as the rotating end and the covering end. The rotating end is rotatable in a first direction. The rotation of the rotating end can cause the covering end to abut against the outer peripheral wall of the mercury lamp 210, or to disengage the covering end from the outer peripheral wall of the mercury lamp 210. When the covering ends of multiple lamp covers 220 are all abutting against the outer peripheral wall of the mercury lamp 210, the covering end of any lamp cover 220 can connect with the rotating end of another lamp cover 220 that is adjacent to it in the circumferential direction of the mercury lamp 210, thereby tightly surrounding the outer peripheral wall of the mercury lamp 210 with multiple lamp covers 220.

[0036] Specifically, a grid plate 101 is provided on the outer casing 100, so that the ultraviolet rays generated by the mercury lamp 210 can be irradiated into the environment through the grid plate 101.

[0037] Furthermore, a cooling fan is provided on the outer casing 100, which is not shown in the accompanying drawings of the instruction manual. By providing the cooling fan, the heat generated by the mercury lamp 210 can be dissipated.

[0038] This embodiment incorporates multiple sterilization components 200 within the outer casing 100. During use, the radiation state of the 185nm ultraviolet light can be controlled by rotating the lamp cover 220, according to the specific application scenario. This satisfies the need for deep disinfection and deodorization in unoccupied environments where both ultraviolet light and ozone work simultaneously, while also allowing switching to an ozone-free mode in occupied environments to avoid ozone irritation. The operation is simple and convenient, adaptable to diverse application scenarios.

[0039] Specifically, when ozone generation is required, the rotating ends of multiple lamp covers 220 are rotated around a first direction, and the covering ends of the lamp covers 220 are rotated until they detach from the outer peripheral wall of the mercury lamp 210, without covering the mercury lamp 210. At this time, the two spectral lines generated by the mercury lamp 210 can function normally. While using ultraviolet light with a wavelength of 253.7 nanometers for sterilization, ultraviolet light with a wavelength of 185 nanometers can normally undergo a photochemical reaction with oxygen in the air, decomposing oxygen into ozone and adsorbing and decomposing odor molecules in the environment. When ozone generation is not required, the rotating ends of multiple lamp covers 220 are rotated in opposite directions around the first direction, and the covering ends of multiple lamp covers 220 are all in contact with the outer peripheral wall of the mercury lamp 210. At this time, the covering end of any lamp cover 220 can connect with the rotating end of another lamp cover 220 adjacent to it in the circumferential direction of the mercury lamp 210, forming a tight enclosure of the outer peripheral wall of the mercury lamp 210. Because the lamp cover 220 is made of ozone-free quartz glass, it can filter and absorb the 185-nanometer ultraviolet radiation emitted by the mercury lamp 210, allowing only 253.7-nanometer ultraviolet radiation to penetrate the lamp cover 220 and irradiate the environment, thus achieving pure ultraviolet sterilization while avoiding ozone generation.

[0040] In a further embodiment, the lamp cover 220 includes a first protruding section 222 and a fitting section 223, which are evenly distributed around the circumferential direction of the mercury lamp 210. When the rotating rod 221 on the lamp cover 220 rotates around the first direction until the covering end of the lamp cover 220 abuts against the outer peripheral wall of the mercury lamp 210, the fitting section 223 can fit against the outer peripheral wall of the mercury lamp 210, and at this time, a first chamber 224 is defined between the first protruding section 222 and the outer peripheral wall of the mercury lamp 210, and the first chamber 224 is used for water filling.

[0041] In this embodiment, a first chamber 224 is provided on the lamp cover 220. During use, when the rotating ends of the multiple lamp covers 220 rotate in opposite directions around the first direction, and the covering ends of the multiple lamp covers 220 abut against the outer peripheral wall of the mercury lamp 210, forming a tight enclosure of the outer peripheral wall of the mercury lamp 210, water is injected into the first chamber 224 to cool the mercury lamp 210.

[0042] Alternatively, each lamp cover 220 may also have a second protrusion 225. The second protrusion 225 and the first protrusion 222 are arranged sequentially in the radial direction of the mercury lamp 210. The second protrusion 225 is located on the side of the first protrusion 222 away from the central axis of the mercury lamp 210 in the radial direction of the mercury lamp 210. A second chamber 226 is defined between the first protrusion 222 and the second protrusion 225. The first chamber 224 and the second chamber 226 are arranged sequentially in the radial direction of the mercury lamp 210. The first chamber 224 is located on the side of the second chamber 226 closer to the central axis of the mercury lamp 210 in the radial direction of the mercury lamp 210. A connecting hole 227 is provided on the first protrusion 222 to connect the first chamber 224 and the second chamber 226. The first chamber 224 is used for filling with water or air, and the second chamber 226 is used for filling with water.

[0043] By further providing a second protrusion 225 on the lamp cover 220, water can be filled into both the first chamber 224 and the second chamber 226 during use, or water can be filled only into the second chamber 226. Flowing air is injected into the first chamber 224, allowing the water in the second chamber 226 to enter the first chamber 224 through the connecting hole 227, thus carrying away the heat generated by the mercury lamp 210.

[0044] In a further embodiment, a first transmission member 240 is provided inside the housing 100. The first transmission member 240 is used to drive the rotating ends of the plurality of lamp covers 220 to rotate around a first direction.

[0045] The first transmission component 240 includes a first rotating plate 241 and a first gear ring 242. The first rotating plate 241 is located at one end of the lamp cover 220 in a first direction and fits against the end of the lamp cover 220. The first rotating plate 241 is coaxially arranged with the mercury lamp 210 and rotates with the mercury lamp 210. The first gear ring 242 is coaxial with the first rotating plate 241 and is rotatably mounted on the first rotating plate 241 around its own axis. Each rotating end of the lamp cover 220 is provided with a rotating rod 221. One end of the rotating rod 221 is arranged along the first direction and passes through the first rotating plate 241. A first gear 243 is provided at the end of the rotating rod 221 that passes through the first rotating plate 241. Multiple first gears 243 are evenly distributed around the circumferential direction of the first gear ring 242 and all mesh with the first gear ring 242.

[0046] Specifically, a first motor is fixedly mounted on the outer casing 100, and a first drive wheel 110 is provided at the output end of the first motor. The first drive wheel 110 meshes with a first gear ring 242. A plurality of through holes 246 are provided on the first rotating plate 241, and the through holes 246 are provided one-to-one with the rotating rod 221. The rotating rod 221 passes through the corresponding through hole 246 along the first direction.

[0047] In another possible embodiment, multiple lamp covers 220 are arranged to rotate around the circumference of the mercury lamp 210.

[0048] The outer casing 100 also includes a second transmission component 250, which comprises a second rotating plate 251, a second gear ring 252, and a third gear ring 253. The second rotating plate 251 is coaxially arranged with and rotatably engages with the mercury lamp 210. The first rotating plate 241 and the second rotating plate 251 are located at opposite ends of the lamp cover 220 in a first direction and are attached to the end of the lamp cover 220. The second gear ring 252 is coaxially mounted on the second rotating plate 251 and rotatably mounted around its own axis. The third gear ring 253 is coaxially mounted on the second gear ring 252 and fixedly mounted inside the second gear ring 252. The other end of the rotating rod 221 passes through the second rotating plate 251 in the first direction, and a second gear 254 is provided at one end of the rotating rod 221 passing through the second rotating plate 251. Multiple second gears 254 are evenly distributed around the circumference of the third gear ring 253 and all mesh with the inner part of the third gear ring 253.

[0049] Specifically, a second motor is fixedly installed on the outer casing 100, and a second drive wheel 120 is installed at the output end of the second motor. The second drive wheel 120 meshes with the second gear ring 252.

[0050] The first rotating plate 241 is provided with a first inlet pipe 244 and a second inlet pipe 245, and the second rotating plate 251 is provided with a first outlet pipe 255 and a second outlet pipe 256. The first inlet pipe 244 and the first outlet pipe 255 are respectively connected to the two ends of the first chamber 224 in the first direction, and the second inlet pipe 245 and the second outlet pipe 256 are respectively connected to the two ends of the second chamber 226 in the first direction.

[0051] Furthermore, the first inlet pipe 244 is connected to an external water pump, the second inlet pipe 245 is connected to an external water pump or air pump, and the first outlet pipe 255 and the second outlet pipe 256 are both connected to an external collection box.

[0052] In use, water is sent from the first inlet pipe 244 to the first chamber 224, and then recovered from the first outlet pipe 255 through the collection box. Similarly, water can also be sent from the second inlet pipe 245 to the second chamber 226, and then recovered from the second outlet pipe 256 through the collection box to achieve water circulation.

[0053] Furthermore, the lamp cover 220 is provided with sealing strips at both ends in the first direction to prevent water from overflowing from the first chamber 224 and the second chamber 226.

[0054] By setting up the first transmission component 240 and the second transmission component 250, when in normal use and when multiple lamp covers 220 are not required to revolve around the mercury lamp 210 in the circumferential direction, neither the first chamber 224 nor the second chamber 226 is filled with water. When the first motor and the second motor are started and rotated in opposite directions, the rotation of the first motor drives the first drive wheel 110 to rotate. The rotation of the first drive wheel 110 drives the first gear ring 242 to rotate. Through the meshing of the first gear ring 242 with multiple first gears 243, all the first gears 243 can rotate, and through the first gears 243, the rotating rod 221 located at the rotating end rotates.

[0055] The rotation of the second motor will drive the second drive wheel 120 to rotate, which in turn will drive the second gear ring 252 to rotate. The rotation direction of the second gear ring 252 is opposite to that of the first gear ring 242. The rotation of the second gear ring 252 will drive the third gear ring 253, which is coaxial with and fixedly mounted thereon, to rotate. The third gear ring 253 will mesh with multiple second gears 254, allowing all of the second gears 254 to rotate. That is, the rotating rod 221 will rotate around its own axis under the combined drive of the first gear ring 242 and the third gear ring 253, thereby allowing the rotating rods 221 of the multiple lamp covers 220 to rotate around the first direction respectively, covering the outer surface of the mercury lamp 210 or detaching from the outer surface of the mercury lamp 210.

[0056] After multiple lamp covers 220 tightly surround the outer peripheral wall of the mercury lamp 210, water can be injected into the first chamber 224 and / or the second chamber 226, driving the multiple lamp covers 220 to revolve around the circumference of the mercury lamp 210. Water cooling is used to comprehensively dissipate heat from the outer peripheral wall of the mercury lamp 210, and the water also lubricates the outer peripheral wall, reducing the resistance to the rotation of the lamp covers 220. Specifically, during use, the first and second motors are started, and the rotation direction and speed of the first gear ring 242 and the third gear ring 253 are the same. This allows the first gear 243 and the second gear 254 to be driven by the first gear ring 242 and the third gear ring 253 to revolve around the circumference of the mercury lamp 210. At this time, the first rotating plate 241 will rotate synchronously with the first gear 243, and the second rotating plate 251 will rotate synchronously with the second gear 254. Furthermore, after water is filled into both the first chamber 224 and the second chamber 226, when ultraviolet light is emitted by the mercury lamp 210 and irradiates the environment through the lamp cover 220 and water, the water has a low refractive index for ultraviolet light and will not affect the normal passage of 253.7 nanometer ultraviolet light.

[0057] The present invention also provides a sterilization process for a sterilization machine, which includes the following steps using the above-mentioned sterilization machine:

[0058] S10, activate the mercury lamps 210 on the multiple sterilization components 200;

[0059] S20, drive the rotating ends of multiple lamp covers 220 to rotate around the first direction respectively, and rotate the covering end of the lamp cover 220 until it is separated from the outer peripheral wall of the mercury lamp 210;

[0060] S30, drive the rotating ends of multiple lamp covers 220 to rotate in opposite directions around the first direction, and make the covering ends of multiple lamp covers 220 abut against the outer peripheral wall of mercury lamp 210.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sterilization machine, characterized in that: The device includes a housing and multiple sterilization components, all housed within the housing. Each sterilization component includes a mercury lamp and multiple lamp covers. The mercury lamp is installed within the housing and positioned horizontally within it; the horizontal axis of the mercury lamp is referred to as the first direction. The mercury lamp is made of fully transparent quartz glass, and the lamp covers are made of ozone-free quartz glass. Multiple lamp covers are evenly distributed circumferentially around the mercury lamp. The two ends of each lamp cover circumferentially around the mercury lamp are referred to as the rotating end and the covering end, respectively. The rotating end is rotatable around the first direction. Rotation of the rotating end allows the covering end to either contact or detach from the outer peripheral wall of the mercury lamp. When the covering ends of all lamp covers are in contact with the outer peripheral wall of the mercury lamp, the covering end of any lamp cover can connect with the rotating end of another lamp cover adjacent to it in the circumferential direction of the mercury lamp.

2. The sterilization machine according to claim 1, characterized in that: The lamp cover includes a first protruding section and a fitting section, which are evenly distributed around the circumference of the mercury lamp. When the rotating end of the lamp cover rotates around the first direction until the covering end of the lamp cover abuts against the outer peripheral wall of the mercury lamp, the fitting section can fit against the outer peripheral wall of the mercury lamp. At this time, a first chamber is defined between the first protruding section and the outer peripheral wall of the mercury lamp, and the first chamber is used for water injection.

3. A sterilization machine according to claim 2, characterized in that: Each lamp cover also has a second protrusion, which is arranged sequentially with the first protrusion in the radial direction of the mercury lamp. The second protrusion is located on the side of the first protrusion away from the central axis of the mercury lamp in the radial direction. A second chamber is defined between the first and second protrusions, and the first and second chambers are connected. The first chamber is used for filling with water or air, and the second chamber is used for filling with water.

4. A sterilization machine according to claim 3, characterized in that: The outer casing contains a first transmission component, which includes a first rotating plate and a first gear ring. The first rotating plate is located at one end of the lamp cover in a first direction and fits against the end of the lamp cover. The first rotating plate is coaxially arranged with the mercury lamp and rotates with the mercury lamp. The first gear ring is coaxially arranged with the first rotating plate and is rotatably mounted on the first rotating plate around its own axis. Each lamp cover has a rotating rod at its rotating end. One end of the rotating rod is arranged along the first direction and passes through the first rotating plate. A first gear is arranged at the end of the rotating rod that passes through the first rotating plate. Multiple first gears are evenly distributed around the circumferential direction of the first gear ring and all mesh with the outer side of the first gear ring.

5. A sterilization machine according to claim 4, characterized in that: Multiple lamp covers are arranged to rotate around the circumference of the mercury lamp.

6. A sterilization machine according to claim 5, characterized in that: The outer casing also includes a second transmission component, which comprises a second rotating plate, a second gear ring, and a third gear ring. The second rotating plate is coaxially arranged with the mercury lamp and rotates with it. The first and second rotating plates are located at opposite ends of the lamp cover in a first direction and are attached to the end of the lamp cover. The second gear ring is coaxial with the second rotating plate and is rotatably mounted on the second rotating plate. The third gear ring is coaxial with the second gear ring and is fixedly mounted on the inner side of the second gear ring. The other end of the rotating rod passes through the second rotating plate in the first direction, and a second gear is provided at one end of the rotating rod that passes through the second rotating plate. Multiple second gears are evenly distributed around the circumferential direction of the third gear ring and all mesh with the inner side of the third gear ring.

7. A sterilization machine according to claim 6, characterized in that: The first rotating plate is provided with a first inlet pipe and a second inlet pipe, and the second rotating plate is provided with a first outlet pipe and a second outlet pipe. The first inlet pipe and the first outlet pipe are respectively connected to the two ends of the first chamber in a first direction, and the second inlet pipe and the second outlet pipe are respectively connected to the two ends of the second chamber in a first direction.

8. A sterilization machine according to claim 1, characterized in that: The lamp cover has sealing strips at both ends in the first direction.

9. A sterilization machine according to claim 1, characterized in that: The outer casing is equipped with a grid plate.

10. A sterilization process for a sterilization machine, utilizing a sterilization machine as described in any one of claims 1 to 9, characterized in that: Includes the following steps: S10, activate the mercury lamps on multiple sterilization components; S20, drive the rotating ends of multiple lamp covers to rotate around the first direction respectively, and rotate the covering end of the lamp cover until it is separated from the outer peripheral wall of the mercury lamp; S30, drive the rotating ends of multiple lamp covers to rotate in opposite directions around the first direction, and make the covering ends of multiple lamp covers abut against the outer peripheral wall of the mercury lamp.

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