Energy-saving time-sharing control ultraviolet disinfection equipment

Abstract

The utility model relates to the technical field of ultraviolet disinfection, and particularly discloses split type energy-saving time-sharing control ultraviolet disinfection equipment which comprises a control cabinet and a disinfection cavity which are arranged in a split mode, and a ballast, an acquisition module, a fan heat dissipation module and a power distribution system are integrated in the control cabinet. The disinfection cavity is provided with a main pipeline with an ultraviolet lamp tube, a high-reflectivity ultraviolet intensity module and a lead screw transmission cleaning device, the cleaning head adopts an inner and outer ring nesting structure, and an inner ring is meshed with spiral patterns on the surface of the lamp tube to realize rotary cleaning. According to the equipment, installation and debugging are simplified through split type design, heat dissipation and data monitoring efficiency is improved through modular control, dead-corner-free cleaning of the surface of the lamp tube is achieved in combination with a spiral friction track of rotary cleaning, the stubborn stain stripping effect is effectively enhanced, the equipment is suitable for high-turbidity water quality, and the ultraviolet transmittance stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ultraviolet disinfection, especially to an energy-saving time-sharing control ultraviolet disinfection equipment. BACKGROUND

[0002] The principle of the ultraviolet sterilizer is to destroy the molecular structure of DNA or RNA in the cells of microorganisms by using ultraviolet rays of a specific wavelength, resulting in the death of growing cells or the death of regenerative cells, thereby achieving the effect of sterilization and disinfection. Ultraviolet disinfection technology is a physical method that uses high-efficiency, high-intensity, and long-life UVC band ultraviolet light to irradiate flowing water. When bacteria, viruses, and other microorganisms in the water are irradiated with a sufficient dose of UVC ultraviolet light (wavelength 253.7 nm), their cell DNA and structure are destroyed, and cell regeneration cannot be carried out, thereby achieving water disinfection and purification. In addition, ultraviolet light with a wavelength of 185 nm can also decompose organic molecules in water, produce hydrogen-based free radicals, and oxidize organic molecules in water to CO2 and H2O, achieving the effect of removing TOC. This disinfection method does not add any substances to the water and has no side effects, so it is considered to be superior to chlorination disinfection in some cases.

[0003] Ultraviolet sterilizers are widely used in many fields, and their application scenarios include but are not limited to the following:

[0004] (1) Drinking water treatment: Ultraviolet sterilizers can effectively kill bacteria, viruses, and other microorganisms in water, ensuring the safety of drinking water. This is particularly important in homes, schools, offices, and other places.

[0005] (2) Industrial water: There are strict requirements for water quality in industrial production processes, and ultraviolet sterilizers can be used in food processing, pharmaceutical factories, and other places to ensure the hygiene standards of production water.

[0006] (3) Medical facilities: Hospital operating rooms, wards, and other places require a highly sterile environment, and ultraviolet sterilizers can be used for air and surface sterilization to prevent cross-infection.

[0007] (4) Aquaculture: Ultraviolet sterilizers can be used in water treatment systems to control the growth of microorganisms in water, keeping the water clean and conducive to the healthy growth of aquatic animals.

[0008] When disinfecting water bodies with external disinfection equipment, the ultraviolet lamp needs to be immersed in the water for a long time, and impurities in the water will adhere to the surface of the lamp, thereby affecting the disinfection effect of the ultraviolet lamp. UTILITY MODEL CONTENT

[0009] The utility model provides a kind of energy-saving time-sharing control ultraviolet disinfection equipment, which is used for cleaning the surface of the ultraviolet lamp tube immersed in water.

[0010] The utility model provides a kind of energy-saving time-sharing control ultraviolet disinfection equipment, which is used for cleaning the surface of the ultraviolet lamp tube immersed in water.

[0011] Preferably, a ballast and a collection module are installed in the control cabinet. The ballast is used to provide stable power for the ultraviolet lamp tube to ensure its normal operation. The collection module includes a gateway collection module and a power collection module, which are used to collect the working data of the ultraviolet lamp tube.

[0012] Preferably, a fan is installed on the ventilation opening of the cabinet.

[0013] Preferably, the main pipe is a cylinder, and the end faces of the two ends of the cylinder are flat. The water inlet and the water outlet are arranged on the annular surface of the cylinder. A support column is arranged on the end face of the main pipe where the lead screw extends. A motor base is fixed on the support column. The driving motor is installed through the motor base. The driving motor is in transmission connection with the extension segment of the lead screw through a coupling.

[0014] Preferably, the ultraviolet lamp tube is fixed at the end opposite to the driving motor. A plurality of ultraviolet lamp tubes are installed in the main pipe and around the lead screw.

[0015] Preferably, a lamp tube insertion hole is arranged on the end face of the main pipe with the lead screw as the center. The ultraviolet lamp tube is inserted into the main pipe through the lamp tube insertion hole. The outer end of the ultraviolet lamp tube is provided with a flange. The outer end of the ultraviolet lamp tube is fixed on the end face of the main pipe through the flange. A sealing gasket is arranged between the flange and the end face of the main pipe.

[0016] Preferably, a slot corresponding to the lamp tube insertion hole is arranged in the main pipe. The inner end of the ultraviolet lamp tube is fixed in the slot in the main pipe.

[0017] Preferably, the main pipe is internally provided with a water quality collecting module, the water quality collecting module comprises a water quality monitoring probe, an opening is arranged on the main pipe, and the water quality monitoring probe is inserted into the main pipe through the opening, so that the water quality inside the ultraviolet disinfection device can be monitored in real time through the water quality monitoring probe.

[0018] Preferably, the cleaning head comprises an outer ring and an inner ring, the inner ring is slidingly sleeved in the outer ring, the inner ring can rotate in the outer ring, the surface of the ultraviolet lamp tube is provided with a convex / concave spiral pattern, and the inner surface of the inner ring is provided with a groove / protrusion matched with the spiral pattern, so that the inner ring rotates along the spiral pattern when the cleaning head is moved along the ultraviolet lamp tube under the driving of the sliding sleeve.

[0019] Preferably, the time-sharing and grading control system comprises a flow monitoring module, a data processing and analysis module, a grading control decision module, an execution control module and a feedback and monitoring module, the flow monitoring module is provided with electromagnetic flowmeters or ultrasonic flowmeters on the main pipe of the disinfection cavity, and the flow monitoring module transmits data collected by the flowmeters to the data processing and analysis module; the data processing and analysis module provides data analysis results to the grading control decision module; the grading control decision module outputs disinfection level instructions to the execution control module according to result data provided by the data analysis module; the execution control module receives control instructions from the grading control decision module and controls the working state of the ultraviolet lamp tube; and the feedback and monitoring module monitors the system running state in real time and feeds back monitoring data to the data processing and analysis module.

[0020] The energy-saving time-sharing control ultraviolet disinfection equipment has the advantages that the annular cleaning head is coaxially driven by the lead screw to move along the ultraviolet lamp tube, the spiral pattern and the inner ring rotation design (matching groove / protrusion) are combined, double cleaning of rotary friction and axial scraping is realized, the biological membrane removal efficiency is significantly improved, and ultraviolet attenuation is avoided.

[0021] The ultraviolet lamp tube is fixed at both ends by the flange and the slot (with a sealing gasket), quick disassembly and assembly and high sealing performance are realized, the maintenance difficulty is reduced, and leakage is prevented.

[0022] The main pipe is internally provided with a multi-parameter water quality probe (PH / COD / TOC, etc.), the disinfection effect and water quality change are synchronously monitored in real time, the ultraviolet dose adjustment is optimized, the control cabinet is integrated with a ventilation fan and a multi-dimensional acquisition module (current / ultraviolet intensity, etc.), and the stable operation of the equipment and data tracing are synchronously ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a three-dimensional structure schematic view of the utility model;

[0024] Figure 2 is one of three-dimensional structure schematic views of the disinfection cavity;

[0025] Figure 3 is the second schematic diagram of the disinfection cavity;

[0026] Figure 4 is the schematic diagram of the internal structure of the disinfection cavity;

[0027] Figure 5 is the schematic diagram of the ultraviolet lamp tube insertion structure;

[0028] Figure 6 is a schematic diagram of one structure of the cleaning head;

[0029] Figure 7 is the block diagram of the time-sharing and grading system.

[0030] In the figure, 1 is a control cabinet, 2 is a disinfection cavity, 201 is a main pipe, 202 is a water inlet, 203 is a water outlet, 204 is an ultraviolet lamp tube, 205 is a motor base, 206 is a driving motor, 207 is a support column, 208 is a shaft coupling, 209 is a lead screw, 210 is a sliding sleeve, 211 is a cleaning head, 241 is a flange, 242 is a helical pattern, 2111 is an outer ring, and 2112 is an inner ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below.

[0032] Embodiment 1: The utility model provides a kind of energy-saving time-sharing control ultraviolet disinfection equipment, as shown in Figure 1 The ultraviolet equipment is split structure, disinfection cavity 2 is separated from control box, and they are connected by cable, which is convenient for on-site equipment installation and debugging.

[0033] Among them, ballast, acquisition module, fan heat dissipation module and power distribution system module are installed in control cabinet 1, ballast is responsible for providing stable power for ultraviolet lamp tube 204, to ensure its normal work. Acquisition module includes gateway acquisition module, power acquisition module, collects the working data of ultraviolet lamp tube 204, such as pressure, temperature, current voltage power, ultraviolet intensity, etc., for monitoring and maintenance.

[0034] Fan heat dissipation module is to set ventilation opening on the side of cabinet body, and fan is installed on ventilation opening, which is mainly used for heat dissipation of ballast and acquisition module in box body, so that it works at appropriate temperature, to achieve the purpose of energy saving and consumption reduction, fan increases air flow, pushes air into control cabinet 1, so that ultraviolet box body can be better heat dissipation, energy saving and consumption reduction. At the same time, fan can also take away residual bacteria and viruses, to keep air clean.

[0035] Power distribution system module provides stable power supply, to ensure normal operation of the whole system.

[0036] The control box is also provided with a time-sharing and hierarchical control system, such as Figure 7 As shown, the time-sharing and hierarchical control system comprises a flow monitoring module, a data processing and analysis module, a hierarchical control decision module, an execution control module and a feedback and monitoring module.

[0037] The flow monitoring module is to install an electromagnetic flowmeter or an ultrasonic flowmeter on the main pipe (201) of the disinfection cavity, and the flow monitoring module collects data through the flowmeter and transmits the data to the data processing and analysis module.

[0038] The flow monitoring module collects real-time water inflow information, and uses a high-precision sensor (such as an electromagnetic flowmeter or an ultrasonic flowmeter) to measure the water flow speed.

[0039] The data processing and analysis module processes the data using a filter and the like, and provides data analysis results from the analysis module to the hierarchical control decision module according to the filtered data.

[0040] The data processing and analysis module cleans, filters and analyzes the original data obtained from the flow monitoring module, calculates the optimal disinfection parameters (such as lamp power, irradiation time, etc.) under the current flow rate according to the preset rules and historical data, removes noise and outliers in the original data of the flow monitoring module through a filter to ensure data accuracy.

[0041] The hierarchical control decision module outputs disinfection level instructions to the execution control module according to the result data provided by the data analysis module, and the execution control module receives the control instructions from the hierarchical control decision module to control the working state of the ultraviolet lamp.

[0042] The data processing and analysis module, the hierarchical control decision module and the execution control module use a plc controller to complete their respective work.

[0043] The disinfection level (such as low intensity, medium intensity, high intensity) is determined by the plc controller, and the obtained data is compared with the preset rules and historical data to output corresponding control instructions to adjust the working state of the ultraviolet lamp (such as power adjustment, on-off control, etc.), so that the lamp operates according to the set parameters to achieve the best disinfection effect. The power regulator in the plc controller is used to adjust the output power of the lamp; the on-off controller controls the start and stop of the lamp.

[0044] The feedback and monitoring module monitors the system running state in real time and feeds back the monitoring data to the data processing and analysis module. The feedback and monitoring module is connected with the water quality acquisition module installed in the main pipe, and real-time water quality information is obtained through the water quality monitoring probe of the water quality acquisition module, and the obtained water quality information is fed back to the data processing and analysis module.

[0045] The feedback and monitoring module records the disinfection effect and equipment state, automatically detects faults and issues an alarm, provides a remote monitoring and operation interface, and feeds back monitoring data to the data processing and analysis module for subsequent optimization. The state monitoring unit monitors the lamp tube working state and water quality parameters in real time; the alarm unit issues an alarm when an abnormal condition occurs; and the remote monitoring interface supports remote management through a PC terminal or a mobile phone APP.

[0046] The time and level control system calculates and adjusts the optimal display state and optimal disinfection effect of the ultraviolet device disinfection lamp tube according to different flow rates of the water body in the main pipe 201.

[0047] The time and level control system is a system for managing control objects at different time periods and levels. Its core concept is to adopt different control strategies at different time points according to the load condition of the system, user demand or specific priority, so as to realize efficiency maximization, cost minimization and service quality optimization. The time and level control system described in the utility model is based on a distributed PLC control system and realizes automatic control and remote monitoring management by combining PLC communication network technology.

[0048] As shown in Figures 2-4 The disinfection cavity 2 includes a main pipe 201, which is a cylinder. The end faces of the two ends of the cylinder are flat. The main pipe 201 is provided with a water inlet 202 and a water outlet 203. The water inlet 202 and the water outlet 203 are arranged on the annular surface of the cylinder. The main pipe 201 is internally provided with an ultraviolet lamp tube 204 and a cleaning device.

[0049] The ultraviolet lamp tube 204 is the core component of the ultraviolet disinfection device, which kills bacteria and viruses by generating high-energy ultraviolet rays. High-quality low-pressure mercury lamp tubes are usually used to ensure the radiation intensity and stability of ultraviolet rays.

[0050] Meanwhile, the utility model also provides an ultraviolet intensity module matched with the ultraviolet lamp tube 204, which enhances the radiation effect of ultraviolet rays, focuses and reflects ultraviolet rays through high-reflectivity materials, increases the irradiation range and intensity of ultraviolet rays, reduces the loss of ultraviolet rays, and improves the disinfection efficiency.

[0051] The cleaning device mainly includes a screw rod 209 horizontally arranged in the main pipe 201. The screw rod 209 is located at the center of the main pipe 201 and is coaxial with the main pipe 201. The two ends of the screw rod 209 are installed on the main pipe 201 through bearing seats, and a sliding sleeve 210 is sleeved on the screw rod 209. One end of the screw rod 209 extends out of the main pipe 201 and is connected to a driving motor 206. The driving motor 206 controls the rotation of the screw rod 209.

[0052] Specifically, the support column 207 is arranged on the end face of the main pipe 201 where the lead screw 209 extends, the motor base 205 is fixed on the support column 207, the driving motor 206 is installed through the motor base 205, and the driving motor 206 is in transmission connection with the extension section of the lead screw 209 through the shaft coupling 208.

[0053] The cleaning device further comprises a cleaning head 211 sleeved on the ultraviolet lamp tube 204, the cleaning head 211 is in a ring structure, a flexible cleaning layer is arranged on the inner ring of the ring structure, the lamp tube surface is cleaned by moving the cleaning layer on the lamp tube surface, and the cleaning head 211 is fixedly connected with the sliding sleeve 210 on the lead screw 209, and the cleaning head 211 is driven to move back and forth by the sliding sleeve 210 to clean the lamp tube surface.

[0054] The support column 207 is welded and fixed with the main pipe 201, the motor driving mode is adopted, the cleaning cycle is set, the motor is started, the lead screw 209 is rotated to drive the cleaning head 211 to move on the lamp tube surface, and the automatic cleaning of the lamp tube is realized.

[0055] The ultraviolet lamp tube 204 is fixed on the other end of the main pipe 201, that is, the end opposite to the driving motor 206, a plurality of ultraviolet lamp tubes 204 are installed in the main pipe 201, and the plurality of ultraviolet lamp tubes 204 are installed around the lead screw 209. Figure 5 Specifically, as shown in the figure, the lamp tube insertion hole is arranged on the end face of the main pipe 201 with the lead screw 209 as the center, the ultraviolet lamp tube 204 is inserted into the main pipe 201 through the lamp tube insertion hole, the outer end of the ultraviolet lamp tube 204 is provided with a flange 241, the outer end of the ultraviolet lamp tube 204 is fixed on the end face of the main pipe 201 through the flange 241, and a sealing gasket is arranged between the flange 241 and the end face of the main pipe 201.

[0056] Further, the main pipe 201 is provided with a slot corresponding to the lamp tube insertion hole, the inner end of the ultraviolet lamp tube 204 is sleeved and fixed in the slot in the main pipe 201, the slot is fixed on the end face of the main pipe 201, and the slot can also be fixed on the inner ring 2112 wall of the main pipe 201 through the support seat.

[0057] The operation of this energy-saving, time-sharing controlled ultraviolet disinfection equipment is as follows: The split control cabinet 1 and the disinfection chamber 2 are connected by a cable, and the power distribution system module is started after the power is turned on; the working parameters of the ultraviolet lamp tube 204 (such as disinfection time and cleaning cycle) are set through the control cabinet 1, and the fan heat dissipation module is started for pre-heating; the water to be treated flows in from the inlet 202 on the annular surface of the main pipe 201. When it flows through the area of ​​the ultraviolet lamp tube 204, the ballast drives the lamp tube to emit high-intensity ultraviolet light (low-pressure mercury lamp tube). Combined with the high reflectivity material of the ultraviolet intensity module, the light is focused to efficiently kill microorganisms; the water quality monitoring probe detects parameters such as pH and turbidity in real time, and the data is transmitted back to the control cabinet 1 through the acquisition module to dynamically adjust the ultraviolet dosage; the drive motor 206 is started according to the preset cycle, and the lead screw 209 rotates to drive the sliding sleeve 210 and the annular cleaning head 211 to move along the lamp tube axis to achieve cleaning and remove biofilm and dirt; the cleaned dirt flows out of the disinfection chamber 2 with the water flow.

[0058] During disinfection intervals, the detachable UV lamp tube 204 can be pulled out of the slot for replacement or deep maintenance. The slot design ensures accurate alignment.

[0059] Example 2: Linear cleaning achieved by linear movement of lead screw 209 and sliding sleeve 210 has a simpler structure but limited cleaning effect. The cleaning head 211 is moved unidirectionally or bidirectionally only by the linear reciprocating motion of sliding sleeve 210. The flexible cleaning layer and the lamp tube surface only have linear sliding friction. The cleaning trajectory is a parallel straight line, which can easily lead to cleaning blind spots. It is only suitable for low-pollution water bodies as a basic maintenance method.

[0060] Based on this, such as Figure 6 As shown, this utility model further provides a cleaning head 211 structure, which includes an outer ring 2111 and an inner ring 2112. The inner ring 2112 is slidably fitted in the outer ring 2111 and can rotate in the outer ring 2111. The surface of the ultraviolet lamp tube 204 is provided with a raised / recessed spiral pattern 242. The inner surface of the inner ring 2112 is provided with a groove / raised shape that matches the spiral pattern 242. So when the sliding sleeve 210 drives the cleaning head 211 to move along the ultraviolet lamp tube 204, the inner ring 2112 will rotate along the spiral pattern 242, thereby achieving the effect of rotational cleaning. The flexible cleaning layer is laid and fixed on the inner surface of the inner ring 2112.

[0061] The inner ring 2112 of the cleaning head 211 and the spiral pattern 242 (such as threaded protrusions / recesses) on the surface of the ultraviolet lamp tube 204 form an engaging structure. When the sliding sleeve 210 drives the outer ring 2111 to move linearly along the lamp tube axis, the inner ring 2112 is guided by the spiral pattern 242 to generate a rotation (similar to the rotational effect of a nut moving along a screw). This composite motion causes the flexible cleaning layer (such as silicone or a brush) to form a spiral trajectory friction on the lamp tube surface, achieving three-dimensional cleaning.

[0062] Rotary cleaning can cover 100% circumferential area of the lamp tube surface through spiral movement (one cleaning cycle is completed every one pitch movement), avoiding the "cleaning blind area" that may exist in linear cleaning; the engagement design of the spiral pattern 242 and the inner ring 2112 enhances the stripping effect on stubborn stains such as biofilm and scale (shear force is generated by rotation), and is more efficient than linear friction pure pressure cleaning, and the rotary cleaning is suitable for high turbidity water quality or scale-prone environment, and can prevent the accumulation of dirt from causing the ultraviolet transmittance to decrease.

[0063] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the present application.

Claims

1. An energy-saving, time-sharing controlled ultraviolet disinfection device, characterized in that, The utility model provides a disinfection device, including control cabinet (1) and disinfection cavity (2), control cabinet (1) with disinfection cavity (2) are connected through cable;The disinfection cavity (2) includes main pipe (201), is provided with water inlet (202) and water outlet (203) on main pipe (201), and the inside installation of main pipe (201) has ultraviolet lamp (204) and cleaning device;Cleaning device includes the screw rod (209) of horizontal in main pipe (201), and the screw rod (209) is located the center of main pipe (201), and the screw rod (209) is coaxial with main pipe (201), and the both ends of screw rod (209) are installed on main pipe (201) through bearing seat, and the sleeve (210) is sleeved on the screw rod (209), and one end of screw rod (209) extends to the outside of main pipe (201) and is connected drive motor (206), and the rotation of screw rod (209) is controlled through drive motor (206), ultraviolet lamp (204) is installed in main pipe (201), and ultraviolet lamp (204) is located around screw rod (209), and cleaning device further includes cleaning head (211), and cleaning head (211) is annular structure and is sleeved on ultraviolet lamp (204), and is provided with flexible cleaning layer in the inner ring of annular structure, and the surface of lamp is cleaned through the movement of cleaning layer, and the surface of lamp is cleaned.

2. The energy-saving time-division controlled ultraviolet disinfection apparatus according to claim 1, wherein Ballast and acquisition module are installed in control cabinet (1), ballast is used to provide stable electric energy for ultraviolet lamp (204), and ensure its normal work, acquisition module includes gateway acquisition module and electric quantity acquisition module, and is used to collect the working data of ultraviolet lamp (204).

3. The energy-saving time-division controlled ultraviolet disinfection apparatus according to claim 1, wherein Ventilation opening is arranged on the side of cabinet body, and fan is installed on the ventilation opening.

4. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 1, wherein Main pipe (201) is cylindrical body, and the end face of both ends of cylindrical body is plane, and water inlet (202) and water outlet (203) are arranged on the annular surface of cylindrical body, and support column (207) is arranged on the end face of the main pipe (201) where screw rod (209) extends, and motor base (205) is fixed on support column (207), drive motor (206) is installed through motor base (205), and drive motor (206) is in transmission connection with the extension section of screw rod (209) through shaft coupling (208).

5. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 4, wherein Ultraviolet lamp (204) is fixed on the end opposite to drive motor (206), a plurality of ultraviolet lamp (204) are installed in main pipe (201), and the plurality of ultraviolet lamp (204) are installed around screw rod (209).

6. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 5, wherein Lamp socket is arranged on the end face of main pipe (201) and takes screw rod (209) as the center, ultraviolet lamp (204) is inserted into main pipe (201) through lamp socket, and the outer end of ultraviolet lamp (204) is fixed on the end face of main pipe (201) through flange (241), and sealing pad is arranged between flange (241) and the end face of main pipe (201).

7. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 6, wherein The main pipe (201) is internally provided with a slot corresponding to the lamp tube hole, and the inner end of the ultraviolet lamp tube (204) is fixedly sleeved in the slot in the main pipe (201).

8. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 1, wherein The main pipe (201) is internally provided with a slot corresponding to the lamp tube hole, and the inner end of the ultraviolet lamp tube (204) is fixedly sleeved in the slot in the main pipe (201).

9. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 1, wherein The cleaning head (211) comprises an outer ring (2111) and an inner ring (2112), wherein the inner ring (2112) is slidingly sleeved in the outer ring (2111), the inner ring (2112) can rotate in the outer ring (2111), the ultraviolet lamp tube (204) is provided with a convex / concave spiral pattern (242) on the surface, and the inner surface of the inner ring (2112) is provided with a groove / protrusion matched with the spiral pattern (242), so that when the sliding sleeve (210) drives the cleaning head (211) to move along the ultraviolet lamp tube (204), the inner ring (2112) rotates along the spiral pattern (242).

10. The energy-saving time-division controlled ultraviolet sterilizing apparatus according to claim 1, wherein The time-sharing and grading control system comprises a flow monitoring module, a data processing and analysis module, a grading control decision module, an execution control module and a feedback and monitoring module, the flow monitoring module is installed with an electromagnetic flowmeter or an ultrasonic flowmeter on the main pipe (201) of the disinfection cavity, and the flow monitoring module transmits data collected by the flowmeters to the data processing and analysis module; the data processing and analysis module provides data analysis results to the grading control decision module; the grading control decision module outputs disinfection level instructions to the execution control module according to result data provided by the data analysis module; the execution control module receives control instructions from the grading control decision module and controls the working state of the ultraviolet lamp tube; and the feedback and monitoring module monitors the system running state in real time and feeds back monitoring data to the data processing and analysis module.

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