Water treatment and purification system for a marine vessel

Abstract

The application relates to the technical field of water treatment, and provides a water treatment and purification system for a ship, which comprises a filtering kettle, an intermediate kettle and a sterilization kettle, a first connecting pipe is connected between the filtering kettle and the intermediate kettle, a second connecting pipe is connected between the intermediate kettle and the sterilization kettle, and an ultraviolet sterilization lamp is arranged in the sterilization kettle; a filter plate is arranged in the filtering kettle, the filter plate divides the filtering kettle into a sinking area and a floating area, a plurality of filter holes are formed in the surface of the filter plate; the filtering kettle is connected with a water inlet pipe, and the outlet end of the water inlet pipe extends to the sinking area; the inlet end of the first connecting pipe is communicated with the floating area, and the inlet end of the first connecting pipe is lower than the water level in the floating area; and the inlet end of the second connecting pipe is lower than the water level in the intermediate kettle. The water treatment and purification system for the ship can improve the sterilization effect on water.

Description

Technical Field

[0001] This application relates to the technical field of water treatment, and in particular to a water treatment and purification system for ships. Background Technology

[0002] Ships consume a significant amount of fresh water during voyages, primarily for crew living quarters, propulsion system operation, and equipment cooling. Therefore, ships need to store sufficient fresh water before departure, which can be sourced directly from tap water or extracted from groundwater. However, such water sources contain large amounts of bacteria and suspended particulate matter, necessitating a water treatment and purification system on board.

[0003] In existing technologies, ultraviolet (UV) germicidal lamps are primarily used to disinfect water. These lamps are installed inside a quartz sleeve. As water flows through the sleeve, the UV rays emitted by the lamps penetrate the cell walls or shells of microorganisms, damaging their DNA or RNA structures and rendering them unable to replicate and reproduce, thus achieving sterilization. However, in practical applications, when impurities and suspended solids are present in the water, these impurities and suspended solids absorb and scatter the UV rays, reducing the sterilization effect. Therefore, further improvements are needed. Summary of the Invention

[0004] To improve the sterilization effect on water bodies, this application provides a water treatment and purification system for ships.

[0005] The water treatment and purification system for ships provided in this application adopts the following technical solution:

[0006] A water treatment and purification system for ships includes a filter tank, an intermediate tank, and a sterilization tank. A first connecting pipe connects the filter tank and the intermediate tank, and a second connecting pipe connects the intermediate tank and the sterilization tank. An ultraviolet germicidal lamp is installed inside the sterilization tank. A filter plate is installed inside the filter tank, dividing the interior of the filter tank into a sinking zone and a floating zone. The surface of the filter plate has multiple filter holes. The filter tank is connected to an inlet pipe, and the outlet end of the inlet pipe extends to the sinking zone. The inlet end of the first connecting pipe is connected to the floating zone, and the inlet end of the first connecting pipe is lower than the water level in the floating zone. The inlet end of the second connecting pipe is lower than the water level in the intermediate tank.

[0007] By adopting the above technical solution, the water to be treated is introduced into the sinking zone of the filter tank through the inlet pipe. The filter plate filters the water, isolating larger impurities or suspended solids in the sinking zone, thus filtering out most of the impurities and suspended solids in the water. Smaller, lighter suspended solids, after passing through the filter plate, float on the surface of the floating zone. The inlet end of the first connecting pipe is lower than the water level in the floating zone, thereby reducing the possibility of such suspended solids entering the intermediate tank. After the water flows into the intermediate tank, it settles there, allowing suspended solids that entered the intermediate tank with the water flow to float on the surface. The inlet end of the second connecting pipe is lower than the water level in the intermediate tank, further reducing the possibility of suspended solids entering the sterilization tank. Through the two-stage treatment of the filter tank and the intermediate tank, the impurities or suspended solids in the water entering the sterilization tank are greatly reduced, thereby improving the sterilization effect of the ultraviolet germicidal lamp in the sterilization tank on the water.

[0008] Optionally, the sterilization vessel is provided with guide plates, and multiple guide plates are spaced apart along the height direction. A water outlet is formed between one side of each guide plate and the inner wall of the sterilization vessel, and the water outlets of two adjacent guide plates are staggered. Each guide plate is provided with a sleeve, and the number of ultraviolet germicidal lamps corresponds to the number of sleeves. Each ultraviolet germicidal lamp is installed in the corresponding sleeve.

[0009] By adopting the above technical solution, after water flows into the sterilization tank, the arrangement of multiple guide plates can extend the flow path of the water in the sterilization tank, providing sufficient ultraviolet irradiation time for the ultraviolet germicidal lamps and improving the sterilization effect; at the same time, during the water flow, the ultraviolet germicidal lamps of multiple guide plates irradiate the water flow in sequence, thereby fully sterilizing the water and improving the sterilization effect.

[0010] Optionally, the height of the guide plate gradually decreases from the side away from the drain outlet to the side closer to the drain outlet.

[0011] Optionally, the drain outlet is slidably equipped with an opening and closing strip, and a return spring is provided between the opening and closing strip and the inner wall of the sterilization tank. The return spring forces the opening and closing strip to close the drain outlet; the opening and closing strip is connected to a buoyancy strip for pulling the opening and closing strip.

[0012] By adopting the above technical solution, under normal conditions, the opening and closing bar closes the drain outlet under the action of the return spring. This ensures that the water level on the guide plate needs to reach a certain height before the opening and closing bar opens the drain outlet under the action of the buoyancy bar, allowing the water to fall into the next guide plate. In other words, when the water level on the guide plate has not reached the preset height, the drain outlet of the guide plate remains closed, increasing the residence time of the water on the guide plate and thus providing sufficient ultraviolet irradiation time for the ultraviolet germicidal lamp.

[0013] Optionally, the inlet pipe is equipped with a first float valve located in the floating zone. When the float of the first float valve rises to the highest position, the first float valve closes the inlet pipe. The first connecting pipe is equipped with a second float valve located in the intermediate vessel. When the float of the second float valve rises to the highest position, the second float valve closes the first connecting pipe.

[0014] By adopting the above technical solution, when the water level in the intermediate tank decreases, the second float valve can open the first connecting pipe, allowing water from the filtration tank to replenish the intermediate tank in a timely manner, reducing the possibility that the water level in the intermediate tank may fall below the inlet of the second connecting pipe. When the water level in the floating zone decreases, the first float valve can open the inlet pipe, allowing water from the inlet pipe to replenish the filtration tank in a timely manner, reducing the possibility that the water level in the floating zone may fall below the inlet of the first connecting pipe, thereby reducing the possibility that impurities or suspended solids may enter the sterilization tank.

[0015] Optionally, the filter plate is equipped with an aeration pipe, and the peripheral wall of the aeration pipe is provided with a plurality of aeration holes, which are arranged at intervals along the length of the aeration pipe; an opening and closing sleeve is rotatably installed on the outer peripheral wall of the aeration pipe, and a connecting groove is provided on the outer peripheral wall of the opening and closing sleeve, with both ends of the connecting groove extending along the length of the opening and closing sleeve; the filter tank is provided with a drive assembly for driving the opening and closing sleeve to rotate.

[0016] By adopting the above technical solution, when water needs to be added to the intermediate reactor, the opening and closing sleeve is driven by the driving component to rotate, forcing the connecting groove to connect with the aeration hole of the aeration pipe, thereby opening the aeration pipe. Air is blown into the floating zone through the aeration pipe, and the generated bubbles rise to the water surface in the floating zone. In this process, the bubbles can carry the suspended solids in the water to the water surface, so that the suspended solids float on the water surface as much as possible, reducing the possibility of suspended solids entering the first connecting pipe, thereby improving the sterilization effect. After the water in the intermediate reactor is replenished, the opening and closing sleeve is driven to rotate, forcing the connecting groove and the aeration hole to be misaligned, which can shut off the aeration pipe, improving the overall ease of operation.

[0017] Optionally, a sliding strip is slidably mounted on the upper surface of the filter plate. The driving assembly includes a driving rack, a driving gear, and a driving component. The driving rack is mounted on the sliding strip, and both ends of the driving rack extend along the length direction of the sliding strip. The driving gear is coaxially connected to the outer peripheral wall of the opening and closing sleeve and meshes with the driving rack for transmission. The driving component is disposed in the filter vessel to drive the sliding strip to slide along its own length direction.

[0018] By adopting the above technical solution, the sliding bar is driven to slide by the driving component, so as to drive the meshing transmission between the driving rack and the driving gear, thereby enabling the opening and closing sleeve to rotate around its own central axis and realize the opening and closing of the aeration pipe.

[0019] Optionally, the outer wall of the filter vessel is provided with an opening and closing seat, and the opening and closing seat has a connecting cavity that connects to the floating area. The inlet end of the first connecting pipe is connected to the connecting cavity. An opening and closing component is provided between the connecting cavity and the floating area. When the opening and closing sleeve opens the aeration pipe, the opening and closing component opens the connecting cavity. When the opening and closing sleeve closes the aeration pipe, the opening and closing component closes the connecting cavity.

[0020] By adopting the above technical solution, when the aeration pipe is open (i.e., when water needs to be added to the intermediate vessel), the opening and closing component opens the connecting cavity so that the water in the floating zone can flow into the first connecting pipe; when the aeration pipe is not open (i.e., when the intermediate vessel does not need to be added to the intermediate vessel), the opening and closing component closes the connecting cavity, reducing the possibility of suspended solids in the water in the floating zone entering the first connecting pipe and improving the filtration effect of the overall structure.

[0021] Optionally, the opening and closing assembly includes an opening and closing plate, a reset torsion spring, and a push rod. The opening and closing plate is hinged to the opening of the communicating cavity. The reset torsion spring is disposed between the opening and closing plate and the inner wall of the filter tank. The reset torsion spring forces the opening and closing plate to flip and open the communicating cavity. One end of the push rod is connected to a sliding bar. When the sliding bar forces the opening and closing sleeve to close the aeration pipe, the push rod forces the opening and closing plate to flip and close the communicating cavity.

[0022] By adopting the above technical solution, under normal conditions (when the intermediate reactor does not require water replenishment), the sliding bar forces the opening and closing sleeve to close the aeration pipe. The sliding bar, through the push rod, pushes the opening and closing plate, forcing the opening and closing plate to close the connecting cavity, reducing the possibility of suspended solids in the water in the floating zone entering the first connecting pipe. When water needs to be replenished to the intermediate reactor, the sliding bar is forced to slide to open the aeration pipe. At this time, the sliding bar drives the push rod to disengage from the opening and closing plate. Under the action of the return torsion spring, the opening and closing plate flips and opens the connecting cavity, allowing water in the floating zone to enter the first connecting pipe, thus improving the overall operational convenience of the structure.

[0023] Optionally, when the opening and closing plate is in the open state, the upper side of the opening and closing plate rotates into the floating area, and the lower side of the opening and closing plate rotates into the connecting cavity; and when the opening and closing plate is in the open state, a first passage is formed between the upper side of the opening and closing plate and the inner wall of the filter vessel, and a second passage is formed between the lower side of the opening and closing plate and the inner wall of the connecting cavity; the plate surface of the opening and closing plate is provided with a flow hole, and when the opening and closing plate is in the open state, the flow hole rotates to the inlet end facing the first passage.

[0024] By adopting the above technical solution, the opening and closing plate forms a first opening and a second opening when the plate is open, allowing water in the floating zone to flow into the connecting cavity through the first opening and the second opening, respectively. When the plate is open, the bubbles generated by the aeration pipe rise to the surface and can enter the first opening through the flow hole, then rise to the water surface. The effect is that when the bubbles pass through the first opening, they can carry away suspended solids in the water entering the first opening, further reducing the possibility of suspended solids entering the connecting cavity and greatly improving the filtration effect for suspended solids.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By setting up a filter tank and an intermediate tank, the water to be treated is introduced into the settling zone of the filter tank through the inlet pipe. The filter plate filters the water, isolating larger impurities or suspended solids in the settling zone, thus filtering out most of the impurities and suspended solids in the water. Smaller, lighter suspended solids, after passing through the filter plate, float on the surface of the floating zone. The inlet end of the first connecting pipe is lower than the water level in the floating zone, thereby reducing the possibility of such suspended solids entering the intermediate tank. After the water flows into the intermediate tank, it settles there, allowing suspended solids that entered the intermediate tank with the water flow to float on the surface. The inlet end of the second connecting pipe is lower than the water level in the intermediate tank, further reducing the possibility of suspended solids entering the sterilization tank. Through the two-stage treatment of the filter tank and the intermediate tank, the impurities or suspended solids in the water entering the sterilization tank are greatly reduced, thereby improving the sterilization effect of the ultraviolet germicidal lamp in the sterilization tank on the water.

[0027] 2. With the aeration pipe in place, when water needs to be added to the intermediate reactor, the drive component rotates the opening and closing sleeve, forcing the connecting groove to connect with the aeration holes of the aeration pipe, thus opening the aeration pipe. Air is blown into the floating zone through the aeration pipe, and the generated bubbles rise to the surface of the water in the floating zone. In this process, the bubbles can carry suspended solids in the water to the surface, so that the suspended solids float on the surface as much as possible, reducing the possibility of suspended solids entering the first connecting pipe, thereby improving the sterilization effect. After the water in the intermediate reactor is replenished, the opening and closing sleeve is rotated, forcing the connecting groove and the aeration holes to be misaligned, which can then shut off the aeration pipe, improving the overall ease of operation.

[0028] 3. Through the design of the opening and closing components, under normal conditions (when the intermediate reactor does not require water replenishment), the sliding bar forces the opening and closing sleeve to close the aeration pipe. The sliding bar, through the push rod, pushes the opening and closing plate, forcing the opening and closing plate to close the connecting cavity, reducing the possibility of suspended solids in the water in the floating zone entering the first connecting pipe. When water needs to be replenished to the intermediate reactor, the sliding bar is forced to slide to open the aeration pipe. At this time, the sliding bar drives the push rod to disengage from the opening and closing plate. Under the action of the return torsion spring, the opening and closing plate flips and opens the connecting cavity, allowing water in the floating zone to enter the first connecting pipe, thus improving the overall ease of operation. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the overall structure of Embodiment 1;

[0030] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0031] Figure 3 This is a partial cross-sectional view of the aeration pipe in Example 2;

[0032] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0033] Figure 5 This is a partial cross-sectional view of the opening and closing component in Embodiment 3;

[0034] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0035] Figure 7 This is a partial cross-sectional view of Embodiment 3, illustrating the closing and connecting cavity of the opening and closing plate.

[0036] Explanation of reference numerals in the attached drawings: 1. Filter vessel; 11. Filter plate; 111. Filter hole; 12. Sinking zone; 13. Floating zone; 14. Aeration pipe; 141. Aeration hole; 15. Opening and closing sleeve; 151. Connecting groove; 16. Sliding bar; 161. Connecting bar; 17. Abutment surface; 2. Intermediate vessel; 3. Sterilization vessel; 31. Guide plate; 311. Water outlet; 32. Sleeve; 33. Opening and closing bar; 331. Sliding rod; 34. Return spring; 35. Buoyancy. 36. Mounting strip; 4. First connecting pipe; 41. Second float valve; 5. Second connecting pipe; 51. Pneumatic valve; 6. Water inlet pipe; 61. First float valve; 7. Drive assembly; 71. Drive rack; 72. Drive gear; 73. Drive cylinder; 8. Opening / closing seat; 81. Connecting cavity; 9. Opening / closing assembly; 91. Opening / closing plate; 911. First port; 912. Second port; 913. Flow hole; 92. Push rod; 93. Rotating rod. Detailed Implementation

[0037] The following combination Figures 1-7 This application will be described in further detail.

[0038] Example 1:

[0039] This application discloses a water treatment and purification system for ships.

[0040] Reference Figure 1 A water treatment and purification system for ships includes a filter tank 1, an intermediate tank 2, and a sterilization tank 3. The filter tank 1, intermediate tank 2, and sterilization tank 3 are all installed on the ship. The filter tank 1 is installed on top of the intermediate tank 2, and the sterilization tank 3 is installed on one side of the intermediate tank 2. In this embodiment, a filter plate 11 is installed inside the filter tank 1. The filter plate 11 is horizontally arranged and divides the interior of the filter tank 1 into a sinking zone 12 and a floating zone 13. The floating zone 13 is located on top of the sinking zone 12. The surface of the filter plate 11 has multiple filter holes 111. The sinking zone 12 and the floating zone 13 are interconnected through the filter holes 111.

[0041] The filter vessel 1 is connected to an inlet pipe 6, and the outlet end of the inlet pipe 6 extends into the sinking zone 12. A first connecting pipe 4 connects the filter vessel 1 and the intermediate vessel 2. The inlet end of the first connecting pipe 4 connects to the floating zone 13, and the outlet end of the first connecting pipe 4 connects to the interior of the intermediate vessel 2. A second connecting pipe 5 connects the intermediate vessel 2 and the sterilization vessel 3. The inlet end of the second connecting pipe 5 connects to the interior of the intermediate vessel 2, and the outlet end of the second connecting pipe 5 connects to the interior of the sterilization vessel 3. In this embodiment, the inlet end of the first connecting pipe 4 is lower than the water level in the floating zone 13, and the inlet end of the second connecting pipe 5 is lower than the water level in the intermediate vessel 2.

[0042] Reference Figure 1 The inlet pipe 6 is equipped with a first float valve 61, which is located in the floating zone 13 and is higher than the inlet end of the first connecting pipe 4. When the float of the first float valve 61 rises to the highest position, the first float valve 61 closes the inlet pipe 6. The first connecting pipe 4 is equipped with a second float valve 41, which is located in the intermediate vessel 2 and is higher than the inlet end of the second connecting pipe 5. When the float of the second float valve 41 rises to the highest position, the second float valve 41 closes the first connecting pipe 4.

[0043] Reference Figure 1 , Figure 2The sterilizer 3 is equipped with a guide plate 31, and multiple guide plates 31 are spaced apart along the height direction. The height of the outlet end of the second connecting pipe 5 is higher than the height of all guide plates 31. A drain outlet 311 is formed between one side of each guide plate 31 and the inner wall of the sterilizer 3. The drain outlets 311 of two adjacent guide plates 31 are staggered. In this embodiment, the height of the guide plate 31 gradually decreases from the side away from the drain outlet 311 to the side closer to the drain outlet 311.

[0044] Multiple sleeves 32 are installed inside the sterilizer 3, and the multiple sleeves 32 are correspondingly set with multiple guide plates 31. Each sleeve 32 is located above the corresponding guide plate 31. Ultraviolet germicidal lamps (not shown in the figure) are installed inside the sterilizer 3. The number of ultraviolet germicidal lamps is set in accordance with the number of sleeves 32, and each ultraviolet germicidal lamp is installed in the corresponding sleeve 32.

[0045] Reference Figure 1 , Figure 2 Each drain outlet 311 is equipped with an opening and closing strip 33. An installation strip 36 is fixedly installed on the inner wall of the sterilizer 3. A sliding rod 331 is connected to the top wall of the opening and closing strip 33. The lower end of the sliding rod 331 is fixedly connected to the top wall of the opening and closing strip 33, and the upper end of the sliding rod 331 passes through the installation strip 36. The opening and closing strip 33 is slidably installed on the installation strip 36 of the sterilizer 3 through the sliding rod 331. A return spring 34 is sleeved on the outer periphery of the sliding rod 331. One end of the return spring 34 is fixedly connected to the opening and closing strip 33, and the other end is fixedly connected to the installation strip 36. Under normal conditions, the return spring 34 forces the opening and closing strip 33 to close the drain outlet 311. A buoyancy strip 35 that pulls the opening and closing strip 33 is fixedly connected to the upper end of the sliding rod 331. When the water level on the guide plate 31 exceeds the buoyancy strip 35, the buoyancy strip 35 floats up and drives the opening and closing strip 33 to open the drain outlet 311.

[0046] Reference Figure 1 It should be noted that the second connecting pipe 5 is equipped with a pneumatic valve 51, which controls the opening and closing of the second connecting pipe 5. In actual operation, the pneumatic valve 51 is controlled to open and close according to the preset program, and the opening and closing of the second connecting pipe 5 is controlled intermittently so that the water in the intermediate vessel 2 can flow into the sterilization vessel 3 for sterilization treatment.

[0047] The implementation principle of Embodiment 1 of this application is as follows: Water to be treated is introduced into the sinking zone 12 of the filter tank 1 through the inlet pipe 6. The filter plate 11 can filter the water, so that larger impurities or suspended solids can be isolated in the sinking zone 12, thereby filtering out most of the impurities and suspended solids in the water. Smaller and lighter suspended solids can float on the water surface in the floating zone 13 after passing through the filter plate 11. The inlet end of the first connecting pipe 4 is lower than the water surface in the floating zone 13, thereby reducing the possibility of such suspended solids entering the intermediate tank 2.

[0048] After the water flows into the intermediate tank 2, it settles inside, allowing a small amount of suspended matter that entered the intermediate tank 2 to float on the surface. The inlet of the second connecting pipe 5 is lower than the water level in the intermediate tank 2, thus reducing the possibility of suspended matter entering the sterilization tank 3. Through the two treatments in the filter tank 1 and the intermediate tank 2, impurities or suspended matter in the water entering the sterilization tank 3 are greatly reduced, thereby improving the sterilization effect of the ultraviolet germicidal lamps in the sterilization tank 3.

[0049] Under normal conditions, the opening and closing bar 33 closes the drain outlet 311 under the action of the return spring 34. This allows the opening and closing bar 33 to open the drain outlet 311 under the action of the buoyancy bar 35 only when the water level on the guide plate 31 reaches a certain height, so that the water flow can fall into the next guide plate 31. That is, when the water level on the guide plate 31 has not reached the preset height, the drain outlet 311 of the guide plate 31 is always in a closed state, which increases the residence time of the water flow on the guide plate 31, thereby providing sufficient ultraviolet irradiation time for the ultraviolet germicidal lamp and improving the sterilization effect.

[0050] Example 2:

[0051] This application discloses a water treatment and purification system for ships.

[0052] The difference between the water treatment and purification system for ships disclosed in this application and Embodiment 1 is that:

[0053] Reference Figure 3 , Figure 4 In this embodiment, a plurality of aeration pipes 14 are installed inside the filter tank 1. The plurality of aeration pipes 14 are all located above the filter plate 11. One end of the aeration pipe 14 extends out of the filter tank 1 and is used to connect to the air supply equipment (not shown in the figure). The outer peripheral wall of the aeration pipe 14 is provided with a plurality of aeration holes 141 that communicate with the interior of the aeration pipe 14. The plurality of aeration holes 141 are arranged at intervals along the length direction of the aeration pipe 14. The outer peripheral wall of each aeration pipe 14 is fitted with an opening and closing sleeve 15. The opening and closing sleeve 15 is rotatably installed on the outer peripheral wall of the aeration pipe 14 so that it can rotate around its own central axis. The outer peripheral wall of the opening and closing sleeve 15 is provided with a connecting groove 151. The two ends of the connecting groove 151 extend along the length direction of the opening and closing sleeve 15.

[0054] The filter vessel 1 is equipped with a drive assembly 7 for driving the opening and closing sleeve 15 to rotate. A sliding strip 16 is slidably installed on the upper surface of the filter plate 11. The drive assembly 7 includes a drive rack 71, a drive gear 72, and a drive component. The drive rack 71 is fixedly installed on the top wall of the sliding strip 16, and both ends of the drive rack 71 extend along the length direction of the sliding strip 16. The number of drive gears 72 corresponds to the number of opening and closing sleeves 15. Each drive gear 72 is coaxially fixed to the outer peripheral wall of the corresponding opening and closing sleeve 15. The drive rack 71 and all drive gears 72 are meshed and transmitted.

[0055] Reference Figure 3 , Figure 4 A driving component is disposed on the filter vessel 1 to drive the sliding bar 16 to slide along its own length. In this embodiment, the driving component is a driving cylinder 73. The cylinder body of the driving cylinder 73 is fixedly installed on the side wall of the filter vessel 1. The piston rod of the driving cylinder 73 extends into the floating area 13 and is connected to the sliding bar 16. When the piston rod of the driving cylinder 73 is extended outward, the connecting groove 151 of the opening and closing sleeve 15 connects to the aeration hole 141 of the aeration pipe 14 (i.e., the aeration pipe 14 is opened). When the piston rod of the driving cylinder 73 is retracted inward, the connecting groove 151 of the opening and closing sleeve 15 and the aeration hole 141 of the aeration pipe 14 are misaligned (i.e., the aeration pipe 14 is closed). It should be noted that in other embodiments, in order to improve the sealing performance of the filter vessel 1, the driving cylinder 73 can be installed on the top of the filter vessel 1 and connected to the sliding bar 16 through a frame.

[0056] The implementation principle of Embodiment 2 of this application is as follows: When water needs to be added to the intermediate vessel 2, the piston rod of the drive cylinder 73 extends outward, driving the opening and closing sleeve 15 to rotate, so that the connecting groove 151 connects to the aeration hole 141 of the aeration pipe 14, thereby opening the aeration pipe 14. Air is blown into the floating zone 13 through the aeration pipe 14, and the generated bubbles rise towards the water surface in the floating zone 13. In this process, the bubbles can carry the suspended matter in the water to the water surface, so that the suspended matter floats on the water surface as much as possible, reducing the possibility of suspended matter entering the intermediate vessel 2, thereby improving the sterilization effect. After the water in the intermediate vessel 2 is replenished, the piston rod of the drive cylinder 73 is driven to retract, forcing the connecting groove 151 and the aeration hole 141 to form a misalignment, so that the aeration pipe 14 can be shut off, improving the overall operational convenience of the structure.

[0057] Example 3:

[0058] This application discloses a water treatment and purification system for ships.

[0059] The difference between the water treatment and purification system for ships disclosed in this application and Embodiment 2 is as follows:

[0060] Reference Figure 5 , Figure 6In this embodiment, an opening and closing seat 8 is fixedly installed on the outer wall of the filter vessel 1. A connecting cavity 81 is opened in the opening and closing seat 8, which connects to the floating area 13. The inlet end of the first connecting pipe 4 is connected to the connecting cavity 81. An opening and closing assembly 9 is provided between the connecting cavity 81 and the floating area 13. When the opening and closing sleeve 15 opens the aeration pipe 14 (that is, when the piston rod of the driving cylinder 73 extends outward), the opening and closing assembly 9 opens the connecting cavity 81. When the opening and closing sleeve 15 closes the aeration pipe 14 (that is, when the piston rod of the driving cylinder 73 retracts inward), the opening and closing assembly 9 closes the connecting cavity 81.

[0061] Reference Figure 5 , Figure 6 , Figure 7 The opening and closing assembly 9 includes an opening and closing plate 91, a reset torsion spring, and a push rod 92. A rotating rod 93 is fixedly installed on the side wall of the opening and closing plate 91. The rotating rod 93 is rotatably installed at the opening of the connecting cavity 81. The opening and closing plate 91 is hinged to the opening of the connecting cavity 81 through the rotating rod 93 for opening and closing the connecting cavity 81. The reset torsion spring (not shown in the figure) is installed between the opening and closing plate 91 and the inner wall of the filter vessel 1. The reset torsion spring forces the opening and closing plate 91 to flip and open the connecting cavity 81.

[0062] A connecting strip 161 is installed on the top wall of the sliding strip 16. One end of the push rod 92 is fixedly connected to the connecting strip 161. The push rod is connected to the sliding strip 16 through the connecting strip 161. When the sliding strip 16 forces the opening and closing sleeve 15 to close the aeration pipe 14 (that is, when the piston rod of the drive cylinder 73 retracts inward), the push rod 92 forces the opening and closing plate 91 to flip and close the communicating cavity 81. When the sliding strip 16 forces the opening and closing sleeve 15 to open the aeration pipe 14 (that is, when the piston rod of the drive cylinder 73 extends outward), the push rod 92 disengages from the opening and closing plate 91.

[0063] Reference Figure 6 , Figure 7 When the opening and closing plate 91 is in the open state, the upper side of the opening and closing plate 91 moves into the floating area 13, and the lower side of the opening and closing plate 91 moves into the connecting cavity 81; and when the opening and closing plate 91 is in the open state, a first opening 911 is formed between the upper side of the opening and closing plate 91 and the inner wall of the filter vessel 1, and a second opening 912 is formed between the lower side of the opening and closing plate 91 and the inner wall of the connecting cavity 81.

[0064] The opening and closing plate 91 has a flow hole 913 on its surface. When the opening and closing plate 91 is in the open state, the flow hole 913 rotates to face the inlet end of the first passage 911. The inner wall of the floating area 13 has an abutment surface 17. When the opening and closing plate 91 is in the closed state, the opening and closing plate 91 abuts against the abutment surface 17, and the abutment surface 17 blocks the flow hole 913.

[0065] The implementation principle of Embodiment 3 of this application is as follows: Under normal conditions (when the intermediate vessel 2 does not require water replenishment), the sliding bar 16 forces the opening and closing sleeve 15 to close the aeration pipe 14. The sliding bar 16 pushes the opening and closing plate 91 through the push rod 92, forcing the opening and closing plate 91 to close the connecting cavity 81, reducing the possibility of suspended matter in the water in the floating zone 13 entering the first connecting pipe 4. When water needs to be replenished to the intermediate vessel 2, the sliding bar 16 is forced to slide to open the aeration pipe 14. At this time, the sliding bar 16 drives the push rod 92 to disengage from the opening and closing plate 91. Under the action of the reset torsion spring, the opening and closing plate 91 flips and opens the connecting cavity 81, thereby allowing the water in the floating zone 13 to enter the first connecting pipe 4, improving the overall operational convenience of the structure.

[0066] When the opening / closing plate 91 is open, it forms a first opening 911 and a second opening 912, allowing water in the floating zone 13 to flow into the connecting cavity 81 through the first opening 911 and the second opening 912 respectively. When the opening / closing plate 91 is open, the bubbles generated by the aeration pipe 14 rise to the surface and can enter the first opening 911 through the flow hole 913, and then rise to the surface from the first opening 911. The effect is that when the bubbles pass through the first opening 911, they can carry away suspended matter in the water entering the first opening 911, further reducing the possibility of suspended matter entering the connecting cavity 81, and greatly improving the filtration effect of suspended matter.

[0067] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water treatment and purification system for ships, characterized in that: The system includes a filter tank (1), an intermediate tank (2), and a sterilization tank (3). A first connecting pipe (4) connects the filter tank (1) and the intermediate tank (2), and a second connecting pipe (5) connects the intermediate tank (2) and the sterilization tank (3). An ultraviolet sterilization lamp is installed inside the sterilization tank (3). A filter plate (11) is installed inside the filter tank (1), which divides the interior of the filter tank (1) into a sinking zone (12) and a floating zone (13). Multiple filter holes (111) are opened on the surface of the filter plate (11). A water inlet pipe (6) is connected to the filter tank (1), and the outlet end of the water inlet pipe (6) extends to the sinking zone (12). The inlet end of the first connecting pipe (4) is connected to the floating zone (13). 3), and the inlet end of the first connecting pipe (4) is lower than the water level in the floating zone (13), and the inlet end of the second connecting pipe (5) is lower than the water level in the intermediate vessel (2); an aeration pipe (14) is installed on the filter plate (11), and a plurality of aeration holes (141) are opened on the peripheral wall of the aeration pipe (14), and the plurality of aeration holes (141) are arranged at intervals along the length direction of the aeration pipe (14); an opening and closing sleeve (15) is rotatably installed on the outer peripheral wall of the aeration pipe (14), and a connecting groove (151) is opened on the outer peripheral wall of the opening and closing sleeve (15), and the two ends of the connecting groove (151) extend along the length direction of the opening and closing sleeve (15); the filter vessel (1) is provided with a drive for driving the opening and closing sleeve (15) to rotate. Component (7); a sliding strip (16) is slidably mounted on the upper surface of the filter plate (11); the drive assembly (7) includes a drive rack (71), a drive gear (72), and a drive component; the drive rack (71) is mounted on the sliding strip (16); both ends of the drive rack (71) extend along the length direction of the sliding strip (16); the drive gear (72) is coaxially connected to the outer peripheral wall of the opening and closing sleeve (15) and meshes with the drive rack (71) for transmission; the drive component is disposed in the filter vessel (1) to drive the sliding strip (16) to slide along its own length direction; the outer wall of the filter vessel (1) is provided with an opening and closing seat (8); the opening and closing seat (8) is provided with a communicating cavity (81) communicating with the floating area (13); the... The inlet end of the first connecting pipe (4) is connected to the connecting cavity (81); an opening and closing assembly (9) is provided between the connecting cavity (81) and the floating area (13). When the opening and closing sleeve (15) opens the aeration pipe (14), the opening and closing assembly (9) opens the connecting cavity (81). When the opening and closing sleeve (15) closes the aeration pipe (14), the opening and closing assembly (9) closes the connecting cavity (81). The opening and closing assembly (9) includes an opening and closing plate (91), a reset torsion spring, and a push rod (92). The opening and closing plate (91) is hinged to the opening of the connecting cavity (81). The reset torsion spring is located between the opening and closing plate (91) and the inner wall of the filter tank (1). The reset torsion spring forces the opening and closing plate (91) to flip and open the connecting cavity (81).One end of the push rod (92) is connected to the sliding bar (16). When the sliding bar (16) forces the opening and closing sleeve (15) to close the aeration pipe (14), the push rod (92) forces the opening and closing plate (91) to flip and close the communicating cavity (81).

2. The water treatment and purification system for ships according to claim 1, characterized in that: The sterilization vessel (3) is provided with a guide plate (31), and multiple guide plates (31) are spaced apart along the height direction. A drain outlet (311) is formed between one side of each guide plate (31) and the inner wall of the sterilization vessel (3). The drain outlets (311) of two adjacent guide plates (31) are staggered. Each guide plate (31) is provided with a sleeve (32). The number of ultraviolet germicidal lamps corresponds to the number of sleeves (32). Each ultraviolet germicidal lamp is installed in the corresponding sleeve (32).

3. A water treatment and purification system for ships according to claim 2, characterized in that: The height of the guide plate (31) gradually decreases from the side away from the drain outlet (311) to the side closer to the drain outlet (311).

4. A water treatment and purification system for ships according to claim 2, characterized in that: The drain outlet (311) is slidably fitted with a closing bar (33), and a return spring (34) is provided between the closing bar (33) and the inner wall of the sterilization vessel (3). The return spring (34) forces the closing bar (33) to close the drain outlet (311); the closing bar (33) is connected to a buoyancy bar (35) for pulling the closing bar (33).

5. A water treatment and purification system for ships according to claim 1, characterized in that: The inlet pipe (6) is equipped with a first float valve (61) located in the floating zone (13). When the float of the first float valve (61) rises to the highest position, the first float valve (61) closes the inlet pipe (6). The first connecting pipe (4) is equipped with a second float valve (41) located in the intermediate vessel (2). When the float of the second float valve (41) rises to the highest position, the second float valve (41) closes the first connecting pipe (4).

6. A water treatment and purification system for ships according to claim 1, characterized in that: When the opening and closing plate (91) is in the open state, the upper side of the opening and closing plate (91) rotates into the floating area (13), and the lower side of the opening and closing plate (91) rotates into the connecting cavity (81); and when the opening and closing plate (91) is in the open state, a first passage (911) is formed between the upper side of the opening and closing plate (91) and the inner wall of the filter vessel (1), and a second passage (912) is formed between the lower side of the opening and closing plate (91) and the inner wall of the connecting cavity (81); the plate surface of the opening and closing plate (91) is provided with a flow hole (913), and when the opening and closing plate (91) is in the open state, the flow hole (913) rotates to the inlet end facing the first passage (911).

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