Water purification device for pump house

Abstract

The present application relates to the technical field of pump houses and in particular to a water purification device for a pump house. The water purification device comprises a pump house water tank and a disinfection cylinder arranged on one side of the pump house water tank, wherein one end of the disinfection cylinder is provided with a water inlet pipe port, the other end of the disinfection cylinder is provided with a water outlet pipe port, and the water outlet pipe port is in communication with the pump house water tank by means of a pipe; the disinfection cylinder is provided with a plurality of ultraviolet lamp tubes distributed around the axis of the disinfection cylinder, the plurality of ultraviolet lamp tubes revolve around the axis of the disinfection cylinder, and each ultraviolet lamp tube rotates around its own axis; and the disinfection cylinder is provided with a rotating device for driving the ultraviolet lamp tubes to revolve and rotate. The present application has the effect of improving the persistence and efficiency of ultraviolet disinfection.

Description

A water purification device for pump rooms Technical Field

[0001] This application relates to the field of pump room technology, and in particular to a water purification device for pump rooms. Background Technology

[0002] Currently, in secondary water supply pump stations, booster pumps are controlled by frequency converters to deliver water, and water in the pump station's water tanks is sterilized and purified by connecting a pipeline sterilizer. A certain amount of ultraviolet light is used to irradiate bacteria and viruses in the water, damaging the DNA and structure of cells and preventing cell regeneration, thereby achieving disinfection and purification of the water in the pump station's water tanks.

[0003] However, scale easily adheres to the outer wall of existing ultraviolet lamps, reducing the sustainability and efficiency of ultraviolet disinfection, thus requiring further improvement. Summary of the Invention

[0004] To improve the sustainability and efficiency of ultraviolet disinfection, this application provides a water purification device for pump rooms.

[0005] The water purification device for pump rooms provided in this application adopts the following technical solution:

[0006] A water purification device for a pump room includes a pump room water tank and a disinfection cylinder disposed on one side of the pump room water tank. One end of the disinfection cylinder has a water inlet, and the other end has a water outlet. The water outlet is connected to the pump room water tank through a pipe. The disinfection cylinder is provided with a plurality of ultraviolet lamps distributed around the axis of the disinfection cylinder. The plurality of ultraviolet lamps revolve around the axis of the disinfection cylinder, and each ultraviolet lamp rotates around its own axis. The disinfection cylinder is provided with a rotating device for driving the ultraviolet lamps to revolve and rotate.

[0007] By adopting the above technical solution, water enters the inner cavity of the disinfection cylinder through the inlet pipe, and after being sterilized by the ultraviolet light emitted from the ultraviolet lamp, it is discharged into the pump room water tank through the outlet pipe. During the disinfection process, the ultraviolet lamp is driven to revolve and rotate by a rotating device. On the one hand, this increases the uniformity of ultraviolet light irradiation, ensuring that the ultraviolet lamp irradiates the water in all positions within the disinfection cylinder, reducing the possibility of blind spots in the disinfection cylinder. On the other hand, it increases the irradiation time: the rotation of the ultraviolet lamp prolongs the contact time between water molecules and ultraviolet light, ensuring sufficient disinfection dosage even at high water flow rates. Furthermore, the dynamic rotation of the ultraviolet lamp, subjected to the shearing force of the water flow, effectively reduces the possibility of scale adhering to the outer wall of the ultraviolet lamp, improving the continuity and efficiency of ultraviolet disinfection, and eliminating the need for frequent cleaning and maintenance of the outer wall of the ultraviolet lamp.

[0008] Preferably, the rotating device includes a turntable coaxially rotatably connected to one end of the disinfection cylinder, a plurality of planetary gears rotatably connected to the turntable, a fixed gear ring coaxially fixedly connected to the inner peripheral wall of the disinfection cylinder, and a drive motor for driving the turntable to rotate around its own axis. The plurality of planetary gears are spaced apart around the axis of the turntable, and the planetary gears are internally meshed with the fixed gear ring. The ultraviolet lamp tube is coaxially and circumferentially linked to the planetary gears.

[0009] By adopting the above technical solution, the drive motor drives the turntable to rotate around its own axis, thereby driving multiple planetary gears to switch positions around the axis of the turntable, thus realizing the revolution of multiple ultraviolet lamps around the axis of the disinfection cylinder. During the process of the turntable driving the planetary gears to move relative to the fixed gear ring, the planetary gears mesh with the fixed gear ring, and because the fixed gear ring is fixed, the planetary gears rotate around their own axis, thereby realizing the rotation of the ultraviolet lamps.

[0010] Preferably, the turntable is rotatably connected to a rotating tube, the axis of which is parallel to the axis of the turntable. A planetary gear is coaxially sleeved in the rotating tube. The ultraviolet lamp includes a quartz sleeve coaxially inserted into the rotating tube and an ultraviolet lamp core tube coaxially inserted into the quartz sleeve. The quartz sleeve is detachably connected to the rotating tube, and the ultraviolet lamp core tube is detachably connected to the quartz sleeve. The turntable rotates and is sealed within the inner peripheral wall of the disinfection cylinder. An avoidance groove communicating with the inner cavity is formed around the outer end face of the disinfection cylinder along the axis. The rotating tube moves within the avoidance groove.

[0011] By adopting the above technical solution, the rotating tube provides an installation carrier for the ultraviolet lamp tube. An avoidance ring groove is opened on the outer end face of the disinfection cylinder to realize the rotating tube revolving around the axis of the disinfection cylinder. The rotating disc is sealed to the inner peripheral wall of the disinfection cylinder to prevent water in the disinfection cylinder from flowing out from the avoidance ring groove. When the ultraviolet lamp tube needs maintenance, the ultraviolet lamp core tube or quartz sleeve can be directly disassembled through the avoidance ring groove to carry out maintenance work.

[0012] Preferably, the disinfection cylinder has an inner ring scraper that slides axially within it. The outer peripheral wall of the inner ring scraper abuts against the outer wall of multiple ultraviolet lamps to clean the scale adhering to the outer wall of the ultraviolet lamps. The disinfection cylinder is equipped with a cleaning drive mechanism that drives the inner ring scraper to slide.

[0013] By adopting the above technical solution, the inner ring scraper is driven to slide by the cleaning drive mechanism. In conjunction with the rotation of the ultraviolet lamp tube, the inner ring scraper scrapes and cleans the scale adhering to the outer peripheral wall of the ultraviolet lamp tube, thereby improving the continuity and efficiency of ultraviolet disinfection.

[0014] Preferably, the cleaning drive mechanism includes a lead screw coaxially rotatably connected to one end of the disinfection cylinder and built into the disinfection cylinder, a threaded sleeve coaxially fixed and passed through the inner ring scraper, and a central gear coaxially fixed and sleeved on one end of the lead screw. The threaded sleeve is threaded onto the lead screw, and the central gear is externally meshed with a planetary gear.

[0015] By adopting the above technical solution, during the revolution and rotation of the ultraviolet lamp tube, the planetary gear rotates around its own axis, driving the central gear to rotate, thereby realizing the rotation of the bidirectional lead screw. The screw sleeve is restricted by the thread of the lead screw and slides along the axial direction of the lead screw, thereby driving the inner ring scraper to move. When the screw sleeve slides to the end of the bidirectional threaded section of the bidirectional lead screw, the screw sleeve can slide in the opposite direction, and reciprocate in sequence, thereby realizing the linkage between the inner ring scraper and the ultraviolet lamp tube. There is no need to add additional drive components. In addition, the cleaning frequency of the inner ring scraper on the outer wall of the ultraviolet lamp tube is increased, further reducing the possibility of scale adhering to the outer wall of the ultraviolet lamp tube and improving the cleanliness of the outer wall of the ultraviolet lamp tube.

[0016] Preferably, the disinfection cylinder has an inner ring scraper that slides axially within it. The inner circumferential wall of the outer ring scraper abuts against the outer wall of multiple ultraviolet lamps to clean the scale adhering to the outer wall of the ultraviolet lamps. A linkage mechanism is provided between the inner ring scraper and the outer ring scraper.

[0017] By adopting the above technical solution, during the sliding process of the inner ring scraper driven by the cleaning drive mechanism, the outer ring scraper is moved together by the linkage mechanism. In conjunction with the rotation of the ultraviolet lamp tube, the inner ring scraper and the outer ring scraper can simultaneously scrape and clean the scale attached to the outer peripheral wall of the ultraviolet lamp tube, thereby improving the cleaning efficiency.

[0018] Preferably, the linkage mechanism includes a first guide rod fixedly connected to the inner ring scraper and slidably passing through the end face of the disinfection cylinder, a second guide rod fixedly connected to the outer ring scraper and slidably passing through the end face of the disinfection cylinder, and a fixed rod fixedly connected between the first guide rod and the second guide rod and externally placed in the disinfection cylinder. The axial directions of the first guide rod and the second guide rod are both parallel to the axial direction of the disinfection cylinder.

[0019] By adopting the above technical solution, the outer ring scraper and the inner ring scraper are fixed by the first guide rod, the second guide rod, and the fixing rod, thereby achieving synchronous movement of the outer ring scraper and the inner ring scraper. The outer ring scraper and the inner ring scraper simultaneously scrape off the scale adhering to the outer peripheral wall of the ultraviolet lamp tube. In conjunction with the rotation of the ultraviolet lamp tube, the cleaning efficiency of the outer peripheral wall of the ultraviolet lamp tube is improved, and the possibility of cleaning dead corners on the outer wall of the ultraviolet lamp tube is reduced, thereby improving the thoroughness of cleaning.

[0020] Preferably, the inner ring scraper is located at one end of the ultraviolet lamp tube, and the outer ring scraper is located at the other end of the ultraviolet lamp tube. The linkage mechanism includes a third guide rod fixedly connected to the inner ring scraper and slidably passing through one end of the disinfection cylinder, a fourth guide rod fixedly connected to the outer ring scraper and slidably passing through the other end of the disinfection cylinder, a first connecting arm fixedly connected to the third guide rod and externally placed in the disinfection cylinder, a first rack fixedly connected to the first connecting arm, a second connecting arm fixedly connected to the fourth guide rod and externally placed in the disinfection cylinder, a second rack fixedly connected to the second connecting arm, and a linkage gear rotatably connected to the outer wall of the disinfection cylinder. The axial directions of the third guide rod and the fourth guide rod are both parallel to the axial direction of the disinfection cylinder, and the length directions of the first rack and the second rack are parallel to the axial direction of the disinfection cylinder. The tooth surfaces of the first rack and the second rack are arranged opposite to each other, and both the first rack and the second rack mesh with the linkage gear.

[0021] By adopting the above technical solution, under normal conditions, the inner ring scraper is located at one end of the ultraviolet lamp tube, and the outer ring scraper is located at the other end. When the inner ring scraper slides towards the outer ring scraper, it drives the third guide rod to slide, which in turn drives the first rack to slide through the first connecting arm. The sliding of the first rack drives the linkage gear to rotate, thereby driving the second rack to slide in the opposite direction. Thus, through the second connecting arm and the fourth guide rod, the outer ring scraper is driven to slide towards the inner ring scraper, realizing the opposite movement of the inner and outer ring scrapers. When the inner and outer ring scrapers slide to the middle position of the ultraviolet lamp tube, the inner ring scraper slides back to its original position, and at the same time, the linkage mechanism drives the outer ring scraper to slide back to its original position, realizing the opposite movement of the two. This achieves comprehensive cleaning of the outer wall of the ultraviolet lamp tube while reducing the length of the third and fourth guide rods, effectively reducing the shadow area generated by the third and fourth guide rods during ultraviolet disinfection.

[0022] Preferably, a guide cylinder is fixedly connected to the end face of the disinfection cylinder, the axial direction of the guide cylinder being parallel to the axial direction of the disinfection cylinder. Both the first and second guide rods include a reinforcing rod slidably inserted into the guide cylinder near the end face of the disinfection cylinder, and a guide rod coaxially fixedly connected to the end of the reinforcing rod and slidably passing through the guide cylinder away from the end face of the disinfection cylinder. The outer diameter of the guide rod is smaller than the outer diameter of the movable rod. A fixed rod is fixedly connected to the guide rod. The movable rod has an inlet channel and an outlet channel communicating with the inner cavity of the guide cylinder. The inlet channel has a built-in inlet check valve, and the outlet channel has a built-in outlet check valve. The movable rod is fixedly connected to the inner ring scraper / outer ring scraper. The end face of the inner ring scraper / outer ring scraper has an inlet hole that communicates with the inlet channel. There are multiple inlet holes that are distributed along the axis of the inner ring scraper / outer ring scraper. The outer peripheral wall of the inner ring scraper / inner peripheral wall of the outer ring scraper has an outlet hole that communicates with the outlet channel. There are multiple outlet holes that are distributed around the axis of the inner ring scraper / outer ring scraper.

[0023] By adopting the above technical solution, when the inner ring scraper and the outer ring scraper slide away from the guide cylinder, they drive the movable rod to slide away from the guide cylinder, which increases the inner cavity of the guide cylinder. At this time, the inner cavity of the guide cylinder is in a negative pressure state, that is, water is drawn out through the water inlet hole on the end face of the inner ring scraper / outer ring scraper. The water enters the inner cavity of the guide cylinder through the water inlet channel and the water inlet check valve. When the inner ring scraper and the outer ring scraper slide closer to the guide cylinder, they drive the movable rod to slide closer to the guide cylinder, which decreases the inner cavity of the guide cylinder. The movable rod squeezes the water in the sealed cavity. The water passes through the water outlet check valve and the water outlet channel in sequence and is sprayed out from the water outlet hole on the peripheral wall of the inner ring scraper / outer ring scraper. The sprayed water impacts the outer wall of the ultraviolet lamp tube, further reducing the possibility of scale adhering to the outer wall of the ultraviolet lamp tube.

[0024] Preferably, both the inner peripheral wall of the outer ring scraper and the outer peripheral wall of the inner ring scraper are fixedly connected with rubber rings that abut against the ultraviolet lamp tube.

[0025] By adopting the above technical solution and adding a rubber ring, a flexible connection between the outer ring scraper, the inner ring scraper, and the ultraviolet lamp tube is achieved, reducing the possibility of scratches on the outer peripheral wall of the ultraviolet lamp tube.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] Water enters the inner cavity of the disinfection cylinder through the inlet pipe, undergoes sterilization by ultraviolet light emitted from the ultraviolet lamp, and is then discharged into the pump room water tank through the outlet pipe. During the disinfection process, the ultraviolet lamp is driven to revolve and rotate via a rotating device. This increases the uniformity of ultraviolet light irradiation, ensuring that the ultraviolet lamp irradiates the water in all locations within the disinfection cylinder, reducing the possibility of blind spots. It also increases the irradiation time: the rotation of the ultraviolet lamp prolongs the contact time between water molecules and ultraviolet light, ensuring sufficient disinfection dosage even at high water flow rates. Furthermore, the dynamic rotation of the ultraviolet lamp, subjected to the shearing force of the water flow, effectively reduces the possibility of scale adhering to the outer wall of the ultraviolet lamp, improving the continuity and efficiency of ultraviolet disinfection, and eliminating the need for frequent cleaning and maintenance of the ultraviolet lamp's outer wall.

[0028] During the revolution and rotation of the ultraviolet lamp, the planetary gear rotates around its own axis, driving the central gear to rotate, which in turn realizes the rotation of the bidirectional lead screw. The screw sleeve is restricted by the thread of the lead screw and slides along the axial direction of the lead screw, thereby driving the inner ring scraper to move. When the screw sleeve slides to the end of the bidirectional threaded section of the bidirectional lead screw, the screw sleeve can slide in the opposite direction, and so on, thus realizing the linkage between the inner ring scraper and the ultraviolet lamp. No additional drive components are required. In addition, the cleaning frequency of the inner ring scraper on the outer wall of the ultraviolet lamp is increased, further reducing the possibility of scale adhering to the outer wall of the ultraviolet lamp and improving the cleanliness of the outer wall of the ultraviolet lamp.

[0029] Under normal conditions, the inner ring scraper is located at one end of the ultraviolet lamp tube, and the outer ring scraper is located at the other end. When the inner ring scraper slides towards the outer ring scraper, it drives the third guide rod to slide, which in turn drives the first rack to slide through the first connecting arm. The sliding of the first rack drives the linkage gear to rotate, thereby driving the second rack to slide in the opposite direction. This, in turn, drives the outer ring scraper to slide towards the inner ring scraper through the second connecting arm and the fourth guide rod, realizing the opposite movement of the inner and outer ring scrapers. When the inner and outer ring scrapers slide to the middle position of the ultraviolet lamp tube, the inner ring scraper slides back to its original position, and at the same time, the linkage mechanism drives the outer ring scraper to slide back to its original position, realizing the opposite movement of the two. This achieves comprehensive cleaning of the outer wall of the ultraviolet lamp tube while reducing the length of the third and fourth guide rods, effectively reducing the shadow area generated by the third and fourth guide rods during ultraviolet disinfection. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the overall structure of a water purification device for a pump room in Embodiment 1.

[0031] Figure 2 is a schematic diagram of the internal structure of the disinfection cylinder in Example 1.

[0032] Figure 3 is a schematic diagram of the fixed arm in Embodiment 1.

[0033] Figure 4 is a schematic diagram of the structure of the ultraviolet lamp tube in Example 1.

[0034] Figure 5 is a magnified view of part A in Figure 4.

[0035] Figure 6 is a schematic diagram of the linkage mechanism in Embodiment 2.

[0036] Figure 7 is a schematic diagram of the internal structure of the disinfection cylinder in Example 2.

[0037] Figure 8 is a schematic diagram of the structure of the disinfection cylinder in Example 3.

[0038] Figure 9 is a schematic diagram of the structure of the first guide rod and the second guide rod in Embodiment 3.

[0039] Figure 10 is a schematic diagram of the connection structure between the reinforcing rod and the inner and outer ring scrapers in Example 3.

[0040] Explanation of reference numerals in the attached drawings: 1. Pump room water tank; 2. Disinfection cylinder; 21. Inlet pipe; 22. Outlet pipe; 23. Clearance ring groove; 24. Fixed arm; 241. First connecting rod; 242. Second connecting rod; 243. Connecting rod; 25. Inner ring scraper; 251. Inlet ring channel; 252. Outlet ring channel; 253. Inlet hole; 254. Outlet hole; 26. Outer ring scraper; 261. Sliding block; 27. Support; 28. Slide groove; 29. ​​Guide cylinder; 20. Rubber ring; 3. Disinfection frame; 4. Ultraviolet lamp tube; 41. Quartz sleeve; 42. Ultraviolet lamp wick tube; 43. Limiting ring; 5. Rotating device; 51. Turntable; 52. Planetary gear; 53. Fixed gear ring; 54. Drive motor; 55. Rotary tube; 56. Nut head; 57. End cap; 6. Linkage mechanism; 61. First guide rod; 611. Reinforcing rod; 612. Sealing plate; 613. Movable rod; 614. Water inlet channel; 615. Water outlet channel; 62. Second guide rod; 63. Fixed rod; 64. Third guide rod; 65. Fourth guide rod; 66. First connecting arm; 67. Second connecting arm; 68. First rack; 69. Second rack; 60. Linkage gear; 7. Cleaning drive mechanism; 71. Lead screw; 72. Screw sleeve; 73. Center gear. Detailed Implementation

[0041] The present application will be further described in detail below with reference to Figures 1-10.

[0042] Example 1:

[0043] This application discloses a water purification device for a pump room. Referring to Figure 1, it includes a pump room water tank 1, a disinfection frame 3 disposed on one side of the pump room water tank 1, and a disinfection cylinder 2 fixedly connected to the disinfection frame 3. The axis of the disinfection cylinder 2 is horizontally arranged. One end of the disinfection cylinder 2 has a water inlet 21, to which the pump room water inlet pipe is connected. The other end of the disinfection cylinder 2 has a water outlet 22, which is connected to the pump room water tank 1 through a pipe.

[0044] Referring to Figures 2 and 3, the disinfection cylinder 2 is equipped with several ultraviolet lamps 4 distributed around the axis of the disinfection cylinder 2. These ultraviolet lamps 4 revolve around the axis of the disinfection cylinder 2, and each ultraviolet lamp 4 rotates around its own axis. The disinfection cylinder 2 is equipped with a rotating device 5 that drives the ultraviolet lamps 4 to revolve and rotate. Specifically, the rotating device 5 includes a turntable 51 coaxially and rotatably sealed to the water outlet end of the disinfection cylinder 2, several planetary gears 52 rotatably connected to the turntable 51, a fixed gear ring 53 coaxially and fixedly connected to the inner circumferential wall of the water outlet end of the disinfection cylinder 2, and a drive motor 54 that drives the turntable 51 to rotate around its own axis. The turntable 51, planetary gears 52, and fixed gear ring 53 are all built into the disinfection cylinder 2. The number of planetary gears 52 corresponds to the number of ultraviolet lamps 4. The planetary gears 52 are spaced apart around the axis of the turntable 51, with the axial direction of the planetary gears 52 parallel to the axial direction of the turntable 51. The planetary gears 52 are internally meshed with the fixed gear ring 53. The drive motor 54 is fixedly connected to the outer end face of the water outlet of the disinfection cylinder 2, and the output shaft of the drive motor 54 is coaxially inserted through the water outlet face of the disinfection cylinder 2 and coaxially fixedly connected to the turntable 51.

[0045] The outer end face of the water outlet of the disinfection cylinder 2 is provided with a clearance annular groove 23 that communicates with the inner cavity. A fixing arm 24 is fixedly connected to the outer end face of the disinfection cylinder 2. Multiple fixing arms 24 are provided and distributed around the axis of the disinfection cylinder 2. Each fixing arm 24 includes a first connecting rod 241 located on one side of the clearance annular groove 23 and fixedly connected to the outer end face of the disinfection cylinder 2, a second connecting rod 242 located on the other side of the clearance annular groove 23 and fixedly connected to the outer end face of the disinfection cylinder 2, and a connecting rod 243 fixedly connected between the first connecting rod 241 and the second connecting rod 242. The axial directions of the first connecting rod 241 and the second connecting rod 242 are parallel to the axial direction of the disinfection cylinder 2, and the axial direction of the connecting rod 243 is parallel to the radial direction of the disinfection cylinder 2.

[0046] Referring to Figures 4 and 5, a rotating tube 55 is rotatably inserted through a turntable 51. The rotating tube 55 and the turntable 51 are rotatably and sealed together. The axial direction of the rotating tube 55 is parallel to the axial direction of the turntable 51. The rotating tube 55 moves within the clearance ring groove 23. The planetary gear 52 is coaxially and fixedly sleeved on the end of the rotating tube 55. The ultraviolet lamp tube 4 includes a quartz sleeve 41 coaxially inserted into the rotating tube 55 and an ultraviolet lamp core tube 42 coaxially inserted into the quartz sleeve 41. Specifically, a limiting ring 43 protrudes from the outer peripheral wall of the open end of the quartz sleeve 41 and abuts against the end face of the rotating tube 55. The rotating tube 55 is threadedly connected to a nut head 56 that abuts against the limiting ring 43 and is sleeved on the ultraviolet lamp core tube 42. The nut head 56 is fitted with an end cap 57 covering the open end of the quartz sleeve 41.

[0047] Referring to Figure 2, the disinfection cylinder 2 is provided with an inner ring scraper 25 and an outer ring scraper 26 that are axially slidably connected to the disinfection cylinder 2. The outer peripheral wall of the inner ring scraper 25 abuts against the outer wall of multiple quartz sleeves 41 to clean the scale adhering to the outer wall of the quartz sleeves 41. The inner peripheral wall of the outer ring scraper 26 abuts against the outer wall of multiple quartz sleeves 41 to clean the scale adhering to the outer wall of the quartz sleeves 41. In this embodiment, in order to reduce the possibility of scratches and wear on the outer peripheral wall of the quartz sleeves 41, a rubber ring 20 that abuts against the ultraviolet lamp tube 4 is fixedly connected to both the inner peripheral wall of the outer ring scraper 26 and the outer peripheral wall of the inner ring scraper 25.

[0048] A linkage mechanism 6 is provided between the inner ring scraper 25 and the outer ring scraper 26. The linkage mechanism 6 includes a first guide rod 61, a second guide rod 62, and a fixing rod 63. The first guide rod 61 is fixedly connected to the inner ring scraper 25 and slides through the water inlet end face of the disinfection cylinder 2 in a sealed manner. The second guide rod 62 is fixedly connected to the outer ring scraper 26 and slides through the water inlet end face of the disinfection cylinder 2 in a sealed manner. The fixing rod 63 is fixedly connected between the first guide rod 61 and the second guide rod 62 and is placed outside the disinfection cylinder 2. The axial directions of the first guide rod 61 and the second guide rod 62 are both parallel to the axial direction of the disinfection cylinder 2, and the axial direction of the fixing rod 63 is parallel to the radial direction of the disinfection cylinder 2.

[0049] The disinfection cylinder 2 is equipped with a cleaning drive mechanism 7 that drives the inner ring scraper 25 or the outer ring scraper 26 to slide. In this embodiment, the cleaning drive mechanism 7 includes a lead screw 71, a threaded sleeve 72, and a central gear 73. The lead screw 71 is built into the disinfection cylinder 2 and coaxially rotatably connected to the inner wall of the water inlet end of the disinfection cylinder 2. The lead screw 71 is a bidirectional lead screw 71. The threaded sleeve 72 is coaxially fixedly inserted through the inner ring scraper 25 and threadedly sleeved on the lead screw 71. The central gear 73 is coaxially fixedly sleeved on the end of the lead screw 71 and externally meshes with the planetary gear 52. In other embodiments, the cleaning drive mechanism 7 can directly drive the inner ring scraper 25 or the outer ring scraper 26 to reciprocate sliding motion via a cylinder transmission.

[0050] The implementation principle of a water purification device for a pump room according to an embodiment of this application is as follows: Water enters the inner cavity of the disinfection cylinder 2 from the inlet pipe 21, and is sterilized by the ultraviolet light emitted by the ultraviolet lamps 4. After sterilization, water is discharged into the pump room water tank 1 from the outlet pipe 22. During the disinfection process, the drive motor 54 drives the turntable 51 to rotate around its own axis, thereby driving multiple planetary gears 52 to switch positions around the axis of the turntable 51. This allows multiple ultraviolet lamps 4 to revolve around the axis of the disinfection cylinder 2. During the movement of the planetary gears 52 relative to the fixed gear ring 53 driven by the turntable 51, the planetary gears 52 mesh with the fixed gear ring 53. Because the fixed gear ring 53 is fixed, the planetary gears 52 rotate around their own axes. The rotation of the ultraviolet lamp 4 increases the uniformity of ultraviolet light irradiation, ensuring that the ultraviolet lamp 4 irradiates the water in all positions within the disinfection cylinder 2, reducing the possibility of blind spots in the disinfection cylinder 2. It also increases the irradiation time: the rotation of the ultraviolet lamp 4 prolongs the contact time between water molecules and ultraviolet light, ensuring sufficient disinfection dosage even at high water flow rates. Furthermore, the dynamic rotation of the ultraviolet lamp 4 agitates the water flow, creating turbulence. This causes the outer wall of the quartz sleeve 41 to be subjected to the shearing force of the water flow, effectively reducing the possibility of scale adhering to the outer wall of the ultraviolet lamp 4, and improving the continuity and efficiency of ultraviolet disinfection.

[0051] In addition, during the rotation of the planetary gear 52 around its own axis, it drives the central gear 73 to rotate, thereby realizing the rotation of the bidirectional lead screw 71. The threaded sleeve 72 is restricted by the thread of the lead screw 71 and slides along the axial direction of the lead screw 71, thereby driving the inner ring scraper 25 to move. Through the first guide rod 61, the fixed rod 63 and the second guide rod 62, the outer ring scraper 26 moves in the same direction. When the threaded sleeve 72 slides to the end of the bidirectional threaded section of the bidirectional lead screw 71, the threaded sleeve 72 can slide in the opposite direction. This reciprocating motion, in conjunction with the revolution and rotation of the ultraviolet lamp tube 4, is used to wipe the outer peripheral wall of the ultraviolet lamp tube 4, further reducing the possibility of scale adhering to the outer wall of the ultraviolet lamp tube 4 and improving the cleanliness of the outer wall of the ultraviolet lamp tube 4.

[0052] Example 2:

[0053] The difference between this embodiment and Embodiment 1 is that, referring to Figures 6 and 7, the inner ring scraper 25 is built into the half of the disinfection cylinder 2 near the water inlet end, and the inner ring scraper 25 cleans the outer wall of the front half of the ultraviolet lamp tube 4. The outer ring scraper 26 is built into the half of the disinfection cylinder 2 near the water outlet end, and the outer ring scraper 26 cleans the outer wall of the rear half of the ultraviolet lamp tube 4. The inner peripheral wall of the disinfection cylinder 2 has a sliding groove 28 along the axial direction, and the outer peripheral wall of the outer ring scraper 26 has a slider 261 that is slidably connected to the sliding groove 28 protruding and fixed.

[0054] The linkage mechanism 6 includes a third guide rod 64, a fourth guide rod 65, a first connecting arm 66, a first rack 68, a second connecting arm 67, a second rack 69, and a linkage gear 60. The third guide rod 64 is fixedly connected to the inner ring scraper 25 and slides through the water inlet end of the disinfection cylinder 2. The fourth guide rod 65 is fixedly connected to the slider 261 and slides through the water outlet end of the disinfection cylinder 2. The first connecting arm 66 is fixedly connected to the third guide rod 64 and is externally positioned in the disinfection cylinder 2. The first rack 68 is fixedly connected to the first connecting arm 66. The second connecting arm 67 is fixedly connected to the fourth guide rod 65 and is externally positioned in the disinfection cylinder 2. The second rack 69 is fixedly connected to the second connecting arm 67. A bracket 27 is fixedly connected to the outer wall of the disinfection cylinder 2, and the linkage gear 60 is rotatably connected to the bracket 27. The axial directions of the first guide rod 61 and the second guide rod 62 are both parallel to the axial direction of the disinfection cylinder 2. The length direction of the first rack 68 and the second rack 69 is parallel to the axial direction of the disinfection cylinder 2. The tooth surfaces of the first rack 68 and the second rack 69 are arranged opposite to each other, and both the first rack 68 and the second rack 69 are meshed with the linkage gear 60. The bidirectional thread on the lead screw 71 is located in the first half of the lead screw 71 near the water inlet end of the disinfection cylinder 2.

[0055] The implementation principle of Example 2 is as follows: In the initial state, the inner ring scraper 25 is located at the front end of the ultraviolet lamp tube 4, and the outer ring scraper 26 is located at the rear end of the ultraviolet lamp tube 4. When the inner ring scraper 25 slides towards the outer ring scraper 26, it drives the third guide rod 64 to slide, which in turn drives the first rack 68 to slide through the first connecting arm 66. The sliding of the first rack 68 drives the linkage gear 60 to rotate, thereby driving the second rack 69 to slide in the opposite direction. Thus, through the second connecting arm 67 and the fourth guide rod 65, the outer ring scraper 26 is driven towards the inner ring scraper. The inner ring scraper 25 and the outer ring scraper 26 slide in the 25 direction to achieve opposite movement. When the inner ring scraper 25 and the outer ring scraper 26 slide to the middle position of the ultraviolet lamp tube 4, the screw sleeve 72 drives the inner ring scraper 25 to slide and reset in the opposite direction. At the same time, the outer ring scraper 26 is driven to slide and reset through the linkage mechanism 6, so as to achieve opposite movement between the two. This reduces the length of the third guide rod 64 and the fourth guide rod 65 and achieves a comprehensive cleaning operation on the outer wall of the ultraviolet lamp tube 4, effectively reducing the shadow area generated by the third guide rod 64 and the fourth guide rod 65 in the water.

[0056] Example 3:

[0057] The difference between this embodiment and embodiment 1 is that, referring to Figures 8 and 9, a guide cylinder 29 is fixedly connected to the water inlet end of the disinfection cylinder 2. The axial direction of the guide cylinder 29 is parallel to the axial direction of the disinfection cylinder 2. The first guide rod 61 and the second guide rod 62 have the same structure. Taking the first guide rod 61 as an example, the first guide rod 61 includes a reinforcing rod 611 that is slidably inserted into the guide cylinder 29 near the end face of the disinfection cylinder 2, a sealing plate 612 that is fixedly connected to the end of the reinforcing rod 611 and slides on the inner wall of the guide cylinder 29, and a guide rod that is coaxially fixedly connected to the sealing plate 612 and slides through the end face of the guide cylinder 29 away from the end face of the disinfection cylinder 2. The movable rod 613 is fixedly connected to the inner ring scraper 25. The outer diameter of the guide rod is smaller than the outer diameter of the sealing plate 612. The end of the guide rod away from the movable rod 613 is fixedly connected to the fixed rod 63.

[0058] Referring to Figures 9 and 10, the movable rod 613 has an inlet channel 614 and an outlet channel 615 connected to the inner cavity of the guide cylinder 29. The inlet channel 614 is equipped with an inlet check valve, and the outlet channel 615 is equipped with an outlet check valve. Both the inner ring scraper 25 and the outer ring scraper 26 have an inlet ring channel 251 and an outlet ring channel 252. The inlet channel 614 on the movable rod 613 is connected to the inlet ring channel 251, and the outlet channel 615 on the movable rod 613 is connected to the outlet ring channel 252. The end face of the inner ring scraper 25 and the end face of the outer ring scraper 26 are provided with inlet holes 253 connected to the inlet ring channel 251. Multiple inlet holes 253 are provided and distributed along the axis of the inner ring scraper 25 and the outer ring scraper 26. The outer peripheral wall of the inner ring scraper 25 and the inner peripheral wall of the outer ring scraper 26 are provided with outlet holes 254 connected to the outlet ring channel 252. Multiple outlet holes 254 are provided and distributed around the axis of the inner ring scraper 25 and the outer ring scraper 26.

[0059] The implementation principle of Example 3 is as follows: When the inner ring scraper 25 and the outer ring scraper 26 slide away from the guide cylinder 29, they drive the movable rod 613 to slide away from the guide cylinder 29, causing the inner cavity of the guide cylinder 29 to increase. At this time, the inner cavity of the guide cylinder 29 is in a negative pressure state, that is, water is drawn out through the water inlet hole 253 on the end face of the inner ring scraper 25 / the end face of the outer ring scraper 26. The water enters the inner cavity of the guide cylinder 29 through the water inlet ring channel 251, the water inlet flow channel 614, and the water inlet one-way valve. When the inner ring scraper 25 and the outer ring scraper 26 slide away from the guide cylinder 29, the inner ring scraper 25 and the outer ring scraper 26 slide away from the guide cylinder 29. When the ring scraper 26 slides towards the guide cylinder 29, it drives the movable rod 613 to slide towards the guide cylinder 29, which reduces the inner cavity of the guide cylinder 29. The movable rod 613 squeezes the water in the sealed cavity. The water passes through the outlet check valve, the outlet channel 615, and the outlet ring channel 252 in sequence and is sprayed out from the outlet hole 254 on the periphery of the inner ring scraper 25 / outer ring scraper 26. The sprayed water impacts the outer wall of the ultraviolet lamp tube 4, further reducing the possibility of scale adhering to the outer wall of the ultraviolet lamp tube 4.

[0060] In other embodiments, the rubber ring 20 has a flow chamber, the water outlet channel 252 is connected to the flow chamber, and the water outlet hole 254 is opened on the outer peripheral wall of the rubber ring 20, so that the water outlet hole 254 forces the rubber ring 20 to expand during the water outlet process, forcing the rubber ring 20 to press against the outer wall of the ultraviolet lamp tube 4, thereby improving the cleaning effect.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water purification device for pump rooms, characterized in that: The system includes a pump room water tank (1) and a disinfection cylinder (2) located on one side of the pump room water tank (1). One end of the disinfection cylinder (2) has an inlet (21) and the other end has an outlet (22). The outlet (22) is connected to the pump room water tank (1) through a pipe. The disinfection cylinder (2) is equipped with several ultraviolet lamps (4) distributed around the axis of the disinfection cylinder (2). The multiple ultraviolet lamps (4) revolve around the axis of the disinfection cylinder (2), and each ultraviolet lamp (4) rotates around its own axis. The disinfection cylinder (2) is equipped with a rotating device (5) for driving the ultraviolet lamps (4) to revolve and rotate.

2. The water purification device for a pumping station according to claim 1, characterized in that: The rotating device (5) includes a turntable (51) coaxially rotatably connected to one end of the disinfection cylinder (2), several planetary gears (52) rotatably connected to the turntable (51), a fixed gear ring (53) coaxially fixedly connected to the inner circumferential wall of the disinfection cylinder (2), and a drive motor (54) that drives the turntable (51) to rotate around its own axis. The multiple planetary gears (52) are spaced apart around the axis of the turntable (51), and the planetary gears (52) mesh with the fixed gear ring (53). The ultraviolet lamp tube (4) is coaxially and circumferentially linked to the planetary gears (52).

3. A water purification device for a pumping station according to claim 2, characterized in that: The turntable (51) is rotatably connected to the rotating tube (55), the axis of the rotating tube (55) is parallel to the axis of the turntable (51), the planetary gear (52) is coaxially sleeved in the rotating tube (55), the ultraviolet lamp tube (4) includes a quartz sleeve (41) coaxially inserted in the rotating tube (55) and an ultraviolet lamp core tube (42) coaxially inserted in the quartz sleeve (41), the quartz sleeve (41) is detachably connected to the rotating tube (55), and the ultraviolet lamp core tube (42) is detachably connected to the quartz sleeve (41). The turntable (51) is rotatably sealed in the inner circumferential wall of the disinfection cylinder (2), and the outer end face of the disinfection cylinder (2) is provided with a clearance ring groove (23) connected to the inner cavity around the axis, and the rotating tube (55) moves in the clearance ring groove (23).

4. A water purification device for a pumping station according to claim 2, characterized in that: The disinfection cylinder (2) has an inner ring scraper (25) that slides along the axial direction. The outer peripheral wall of the inner ring scraper (25) abuts against the outer wall of multiple ultraviolet lamps (4) to clean the scale attached to the outer wall of the ultraviolet lamps (4). The disinfection cylinder (2) is provided with a cleaning drive mechanism (7) that drives the inner ring scraper (25) to slide.

5. A water purification device for a pumping station according to claim 4, characterized in that: The cleaning drive mechanism (7) includes a lead screw (71) coaxially rotatably connected to one end of the disinfection cylinder (2) and built into the disinfection cylinder (2), a threaded sleeve (72) coaxially fixedly inserted through the inner ring scraper (25), and a central gear (73) coaxially fixedly sleeved on one end of the lead screw (71). The lead screw (71) is a bidirectional lead screw (71), the threaded sleeve (72) is threadedly sleeved on the lead screw (71), and the central gear (73) is externally meshed with a planetary gear (52).

6. A water purification device for a pumping station according to claim 4, characterized in that: The disinfection cylinder (2) has an outer ring scraper (26) that slides axially within it. The inner circumferential wall of the outer ring scraper (26) abuts against the outer wall of multiple ultraviolet lamps (4) to clean the scale adhering to the outer wall of the ultraviolet lamps (4). A linkage mechanism (6) is provided between the inner ring scraper (25) and the outer ring scraper (26).

7. A water purification device for a pumping station according to claim 6, characterized in that: The linkage mechanism (6) includes a first guide rod (61) fixedly connected to the inner ring scraper (25) and slidably passing through the end face of the disinfection cylinder (2), a second guide rod (62) fixedly connected to the outer ring scraper (26) and slidably passing through the end face of the disinfection cylinder (2), and a fixing rod (63) fixedly connected between the first guide rod (61) and the second guide rod (62) and externally placed in the disinfection cylinder (2). The axial directions of the first guide rod (61) and the second guide rod (62) are both parallel to the axial direction of the disinfection cylinder (2).

8. A water purification device for a pumping station according to claim 6, characterized in that: Under normal conditions, the inner ring scraper (25) is located at one end of the ultraviolet lamp tube (4), and the outer ring scraper (26) is located at the other end of the ultraviolet lamp tube (4). The linkage mechanism (6) includes a third guide rod (64) fixedly connected to the inner ring scraper (25) and slidably passing through one end of the disinfection cylinder (2), a fourth guide rod (65) fixedly connected to the outer ring scraper (26) and slidably passing through the other end of the disinfection cylinder (2), a first connecting arm (66) fixedly connected to the third guide rod (64) and externally placed in the disinfection cylinder (2), a first rack (68) fixedly connected to the first connecting arm (66), and a fourth rack (65) fixedly connected to the third guide rod (64). The four guide rods (65) are externally placed on the second connecting arm (67) of the disinfection cylinder (2), the second rack (69) is fixedly connected to the second connecting arm (67), and the linkage gear (60) is rotatably connected to the outer wall of the disinfection cylinder (2). The axial directions of the third guide rod (64) and the fourth guide rod (65) are parallel to the axial direction of the disinfection cylinder (2). The length direction of the first rack (68) and the second rack (69) is parallel to the axial direction of the disinfection cylinder (2). The tooth surfaces of the first rack (68) and the second rack (69) are arranged opposite to each other, and the first rack (68) and the second rack (69) are both meshed with the linkage gear (60).

9. A water purification device for a pumping station according to claim 7, characterized in that: A guide cylinder (29) is fixedly connected to the end face of the disinfection cylinder (2). The axial direction of the guide cylinder (29) is parallel to the axial direction of the disinfection cylinder (2). The first guide rod (61) and the second guide rod (62) each include a reinforcing rod (611) that is slidably inserted into the guide cylinder (29) near the end face of the disinfection cylinder (2) and a guide rod that is coaxially fixedly connected to the end of the reinforcing rod (611) and slidably inserted into the guide cylinder (29) away from the end face of the disinfection cylinder (2). The outer diameter of the guide rod is smaller than the outer diameter of the movable rod (613). The fixed rod (63) is fixedly connected to the guide rod. The movable rod (613) has an inlet channel (614) and an outlet channel (615) that communicate with the inner cavity of the guide cylinder (29). 614) has a built-in inlet check valve, and the outlet flow channel (615) has a built-in outlet check valve. The movable rod (613) is fixedly connected to the inner ring scraper (25) / outer ring scraper (26). The end face of the inner ring scraper (25) / the end face of the outer ring scraper (26) is provided with an inlet hole (253) that communicates with the inlet flow channel (614). There are multiple inlet holes (253) and they are distributed along the axis of the inner ring scraper (25) / outer ring scraper (26). The outer peripheral wall of the inner ring scraper (25) / the inner peripheral wall of the outer ring scraper (26) is provided with an outlet hole (254) that communicates with the outlet flow channel (615). There are multiple outlet holes (254) and they are distributed around the axis of the inner ring scraper (25) / outer ring scraper (26).

10. A water purification device for a pumping station according to claim 6, characterized in that: The inner peripheral wall of the outer ring scraper (26) and the outer peripheral wall of the inner ring scraper (25) are both fixedly connected with rubber rings (20) that abut against the ultraviolet lamp tube (4).

Images