Water treatment and purification system for ship

Abstract

The invention relates to the technical field of water treatment, and provides a marine water treatment and purification system which comprises a filter kettle, a middle kettle and a sterilization kettle, a first connecting pipe is connected between the filter kettle and the middle kettle, a second connecting pipe is connected between the middle kettle and the sterilization kettle, and an ultraviolet sterilization lamp is arranged in the sterilization kettle; a filter plate is arranged in the filter kettle and divides the interior of the filter kettle into a sinking area and a floating area, and a plurality of filter holes are formed in the plate surface of the filter plate; the filtering kettle is connected with a water inlet pipe; 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, 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 middle kettle. According to the water treatment and purification system for the ship, the sterilization effect on a water body can be improved.

Description

Technical Field

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

[0002] During navigation, ships need to consume a large amount of fresh water, mainly for crew life, power system operation, equipment cooling, etc. Therefore, before departure, ships need to store and distribute sufficient fresh water, and the fresh water source can be directly tap water or groundwater extraction for storage. In such water sources, there are a large number of bacteria, suspended particles, etc. in the water. Therefore, it is necessary to equip a purification system on the ship that can carry out water treatment.

[0003] In the prior art, water is mainly disinfected by ultraviolet germicidal lamps. The ultraviolet germicidal lamps are installed in quartz sleeves. When water flows through the periphery of the sleeves, the ultraviolet rays emitted by the ultraviolet germicidal lamps can penetrate the cell walls or outer shells of microorganisms, destroy the DNA or RNA structures in their bodies, and make them lose the ability to replicate and reproduce, so as to achieve the purpose of sterilization and disinfection. However, in practical applications, when there are impurities and suspended matters in the water, the impurities and suspended matters in the water will absorb and scatter ultraviolet rays, thus reducing the sterilization effect of ultraviolet rays. Therefore, further improvement is needed. Summary of the Invention

[0004] In order 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 by this application adopts the following technical solutions: A water treatment and purification system for ships includes a filtration kettle, an intermediate kettle, and a sterilization kettle. A first connecting pipe is connected between the filtration kettle and the intermediate kettle, a second connecting pipe is connected between the intermediate kettle and the sterilization kettle, and an ultraviolet germicidal lamp is provided in the sterilization kettle; a filter plate is arranged in the filtration kettle, the filter plate divides the interior of the filtration kettle into a sinking area and a floating area, and a plurality of filter holes are formed on the plate surface of the filter plate; the filtration 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 communicates with the floating area, and the inlet end of the first connecting pipe is lower than the water surface height in the floating area, and the inlet end of the second connecting pipe is lower than the water surface height in the intermediate kettle.

[0006] By adopting the above technical solution, the water to be treated is introduced into the sinking area of the filtration kettle through the water inlet pipe. The filter plate can filter the water, so that larger impurities or suspended matters can be isolated in the sinking area, thereby filtering most of the impurities and suspended matters in the water. After the smaller and lighter suspended matters pass through the filter plate, they can float on the water surface in the floating area. The inlet end of the first connecting pipe is lower than the water surface height in the floating area, so as to reduce the possibility of such suspended matters entering the intermediate kettle. After the water flow enters the intermediate kettle, it stands still in the intermediate kettle, so that the suspended matters following the water flow into the intermediate kettle can float on the water surface of the intermediate kettle. The inlet end of the second connecting pipe is lower than the water surface height in the intermediate kettle, thereby reducing the possibility of suspended matters entering the sterilization kettle. Through the two treatments of the filtration kettle and the intermediate kettle, the impurities or suspended matters in the water entering the sterilization kettle are greatly reduced, and further the sterilization effect of the ultraviolet sterilization lamp on the water body in the sterilization kettle can be improved.

[0007] Optionally, a flow guide plate is provided in the sterilization kettle. A plurality of the flow guide plates are arranged at intervals in the height direction. A water falling port is formed between one side of each flow guide plate and the inner wall of the sterilization kettle. The water falling ports of two adjacent flow guide plates are arranged in a staggered manner; a sleeve is provided on each flow guide plate, and the number of the ultraviolet sterilization lamps corresponds to the number of the sleeves, and each ultraviolet sterilization lamp is installed in the corresponding sleeve.

[0008] By adopting the above technical solution, after the water flows into the sterilization kettle, the arrangement of a plurality of flow guide plates can extend the flow path of the water flow in the sterilization kettle, provide sufficient ultraviolet irradiation time for the ultraviolet sterilization lamp, and improve the disinfection effect; at the same time, during the falling process of the water flow, the ultraviolet sterilization lamps of a plurality of flow guide plates irradiate the water flow in turn, so as to fully sterilize the water body and improve the sterilization effect.

[0009] Optionally, the flow guide plate gradually decreases in height from the side far away from the water falling port to the side close to the water falling port.

[0010] Optionally, a closing strip is slidably installed at the water falling port. A return spring is provided between the closing strip and the inner wall of the sterilization kettle, and the return spring forces the closing strip to close the water falling port; the closing strip is connected with a buoyancy strip for pulling the closing strip.

[0011] By adopting the above technical solution, under normal conditions, the closing strip closes the water falling port under the action of the return spring, so that when the water level on the flow guide plate needs to reach a certain height, the closing strip can be opened under the action of the buoyancy strip to enable the water flow to fall onto the next flow guide plate. That is, when the water level on the flow guide plate does not reach the preset height, the water falling port of the flow guide plate is always in a closed state, increasing the residence time of the water flow on the flow guide plate, and further providing sufficient ultraviolet irradiation time for the ultraviolet sterilization lamp.

[0012] Optionally, a first float valve is installed on the water inlet pipe in the floating zone. When the float of the first float valve floats to the highest position, the first float valve closes the water inlet pipe; a second float valve is installed on the first connecting pipe in the intermediate kettle. When the float of the second float valve floats to the highest position, the second float valve closes the first connecting pipe.

[0013] By adopting the above technical solution, when the water level in the intermediate kettle drops, the second float valve can open the first connecting pipe so that the water in the filtration kettle can be replenished into the intermediate kettle in time, reducing the possibility that the water surface height in the intermediate kettle is lower than the inlet end of the second connecting pipe. When the water level in the floating zone drops, the first float valve can open the water inlet pipe so that the water inlet pipe can replenish water into the filtration kettle in time, reducing the possibility that the water surface height in the floating zone is lower than the inlet end of the first connecting pipe, and further reducing the possibility of impurities or suspended matters entering the sterilization kettle.

[0014] Optionally, an air diffuser pipe is installed on the filter plate. A plurality of air diffuser holes are formed in the peripheral wall of the air diffuser pipe, and the plurality of air diffuser holes are arranged at intervals along the length direction of the air diffuser pipe; a closing sleeve is rotatably installed on the outer peripheral wall of the air diffuser pipe. A communication groove is formed in the outer peripheral wall of the closing sleeve, and both ends of the communication groove extend along the length direction of the closing sleeve; the filtration kettle is provided with a driving assembly for driving the closing sleeve to rotate.

[0015] By adopting the above technical solution, when it is necessary to replenish water to the intermediate kettle, the driving assembly is used to drive the closing sleeve to rotate, forcing the communication groove to communicate with the air diffuser holes of the air diffuser pipe to open the air diffuser pipe. The air diffuser pipe blows air into the floating zone, and the generated bubbles rise towards the water surface in the floating zone. During this process, the bubbles can bring the suspended matters in the water to the water surface, so that the suspended matters can float on the water surface as much as possible, reducing the possibility of the suspended matters entering the first connecting pipe, and further improving the sterilization effect; after the water in the intermediate kettle is replenished, the closing sleeve is driven to rotate, forcing the communication groove to be misaligned with the air diffuser holes, and the air diffuser pipe can be shut down, improving the operation convenience of the overall structure.

[0016] Optionally, a sliding bar is slidably installed on the upper surface of the filter plate. The driving assembly includes a driving rack, a driving gear and a driving member. The driving rack is installed on the sliding bar, and both ends of the driving rack extend along the length direction of the sliding bar. The driving gear is coaxially connected to the outer peripheral wall of the closing sleeve and meshes with the driving rack for transmission; the driving member is arranged in the filtration kettle for driving the sliding bar to slide along its own length direction.

[0017] By adopting the above technical solution, the driving member is used to drive the sliding bar to slide, so as to drive the meshing transmission between the driving rack and the driving gear, so that the closing sleeve can rotate around its own central axis, realizing the opening and closing of the air diffuser pipe.

[0018] Optionally, an opening and closing seat is provided on the outer wall of the filtering kettle. A communication cavity communicating with the floating zone is formed in the opening and closing seat, and the inlet end of the first connecting pipe is communicated with the communication cavity. An opening and closing assembly is arranged between the communication cavity and the floating zone. When the opening and closing sleeve opens the air supply pipe, the opening and closing assembly opens the communication cavity. When the opening and closing sleeve closes the air supply pipe, the opening and closing assembly closes the communication cavity.

[0019] By adopting the above technical solution, when the air supply pipe is in the open state (i.e., when water needs to be supplemented to the intermediate kettle), the opening and closing assembly opens the communication cavity at this time, so that the water in the floating zone can flow into the first connecting pipe; when the air supply pipe is not in the open state (i.e., when the intermediate kettle does not need to be supplemented with water), the opening and closing assembly closes the communication cavity at this time, reducing the possibility of suspended substances in the water in the floating zone entering the first connecting pipe and improving the filtering effect of the overall structure.

[0020] 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 at the opening of the communication cavity. The reset torsion spring is arranged between the opening and closing plate and the inner wall of the filtering kettle, and the reset torsion spring forces the opening and closing plate to turn over and open the communication cavity. One end of the push rod is connected to the sliding strip. When the sliding strip forces the opening and closing sleeve to close the air supply pipe, the push rod forces the opening and closing plate to turn over and close the communication cavity.

[0021] By adopting the above technical solution, under normal conditions (when the intermediate kettle does not need to be supplemented with water), the sliding strip forces the opening and closing sleeve to close the air supply pipe at this time. The sliding strip pushes the opening and closing plate through the push rod, forcing the opening and closing plate to close the communication cavity, reducing the possibility of suspended substances in the water in the floating zone entering the first connecting pipe. When water needs to be supplemented to the intermediate kettle, the sliding strip is forced to slide to open the air supply pipe. At this time, the sliding strip drives the push rod to disengage from the opening and closing plate, and the opening and closing plate turns over and opens the communication cavity under the action of the reset torsion spring, so that the water in the floating zone can enter the first connecting pipe, improving the operation convenience of the overall structure.

[0022] Optionally, when the opening and closing plate is in the open state, the upper side of the opening and closing plate turns into the floating zone, and the lower side of the opening and closing plate turns into the communication cavity; and when the opening and closing plate is in the open state, a first through port is formed between the upper side of the opening and closing plate and the inner wall of the filtering kettle, and a second through port is formed between the lower side of the opening and closing plate and the inner wall of the communication cavity. A circulation hole is formed on the plate surface of the opening and closing plate. When the opening and closing plate is in the open state, the circulation hole rotates to face the inlet end of the first through port.

[0023] By adopting the above technical solution, when the opening and closing plate is in the open state, a first through port and a second through port are formed, enabling the water in the floating zone to flow into the communication cavity through the first through port and the second through port respectively. When the opening and closing plate is in the open state, the bubbles generated by the aeration pipe float upward and can enter the first through port through the circulation holes, and then float to the water surface from the first through port. The achieved effect is that when the bubbles pass through the first through port, they can carry away the suspended substances in the water entering the first through port, further reducing the possibility of the suspended substances entering the communication cavity, and greatly improving the filtering effect on the suspended substances.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the settings of the filtering kettle and the intermediate kettle, the water to be treated is introduced into the sinking area of the filtering kettle through the water inlet pipe. The filter plate can filter the water, enabling larger impurities or suspended substances to be isolated in the sinking area, thereby filtering most of the impurities and suspended substances in the water. After the smaller and lighter suspended substances pass through the filter plate, they can float on the water surface in the floating area. The inlet end of the first connecting pipe is lower than the water surface height in the floating area, thereby reducing the possibility of such suspended substances entering the intermediate kettle. After the water flows into the intermediate kettle, it stands still in the intermediate kettle, enabling the suspended substances that follow the water flow into the intermediate kettle to float on the water surface of the intermediate kettle. The inlet end of the second connecting pipe is lower than the water surface height in the intermediate kettle, thereby reducing the possibility of the suspended substances entering the sterilization kettle. Through the two treatments of the filtering kettle and the intermediate kettle, the impurities or suspended substances in the water entering the sterilization kettle are greatly reduced, and thus the sterilization effect of the ultraviolet germicidal lamp on the water body in the sterilization kettle can be improved; 2. Through the setting of the aeration pipe, when the intermediate kettle needs to be replenished with water, the opening and closing sleeve is driven to rotate by the driving component, forcing the communication groove to communicate with the aeration holes of the aeration pipe to open the aeration pipe. The aeration pipe blows air into the floating area, and the generated bubbles rise towards the water surface of the floating area. During this process, the bubbles can carry the suspended substances in the water to the water surface, so that the suspended substances can float on the water surface as much as possible, reducing the possibility of the suspended substances entering the first connecting pipe, and thus improving the sterilization effect; after the water replenishment of the intermediate kettle is completed, the opening and closing sleeve is driven to rotate, forcing the communication groove to be misaligned with the aeration holes, and the aeration pipe can be shut down, improving the operation convenience of the overall structure; 3. Through the setting of the opening and closing component, under normal conditions (when the intermediate kettle does not need to be replenished with water), at this time, the sliding bar forces the opening and closing sleeve to close the aeration pipe, and the sliding bar pushes the opening and closing plate through the push rod, forcing the opening and closing plate to close the communication cavity, reducing the possibility of the suspended substances in the water in the floating area entering the first connecting pipe. When water needs to be replenished to the intermediate kettle, 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, and the opening and closing plate flips and opens the communication cavity under the action of the reset torsion spring, so that the water in the floating area can enter the first connecting pipe, improving the operation convenience of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural sectional view of Embodiment 1; Figure 2 is Figure 1 the enlarged view of Area A in Figure 3 is the partial sectional view showing the aeration pipe in Embodiment 2; Figure 4 is Figure 3 the enlarged view of Area B in Figure 5 is the partial sectional view showing the opening and closing assembly in Embodiment 3; Figure 6 is Figure 5 the enlarged view of Area C in Figure 7 is the partial sectional view showing the opening and closing plate closing the communication cavity in Embodiment 3.

[0026] Explanation of reference numerals: 1, filtration kettle; 11, filter plate; 111, filter hole; 12, sinking area; 13, floating area; 14, aeration pipe; 141, aeration hole; 15, opening and closing sleeve; 151, communication groove; 16, sliding bar; 161, connecting bar; 17, abutting surface; 2, intermediate kettle; 3, sterilization kettle; 31, guide plate; 311, water inlet; 32, sleeve; 33, opening and closing bar; 331, sliding rod; 34, return spring; 35, buoyancy bar; 36, mounting bar; 4, first connecting pipe; 41, second float valve; 5, second connecting pipe; 51, pneumatic valve; 6, water inlet pipe; 61, first float valve; 7, driving assembly; 71, driving rack; 72, driving gear; 73, driving cylinder; 8, opening and closing seat; 81, communication cavity; 9, opening and closing assembly; 91, opening and closing plate; 911, first through hole; 912, second through hole; 913, circulation hole; 92, push rod; 93, rotating rod. Detailed implementation manners

[0027] The following Figures 1-7 further elaborates on this application in detail.

[0028] Embodiment 1: The embodiment of this application discloses a water treatment and purification system for ships.

[0029] Referring to Figure 1, A water treatment and purification system for ships, including a filtration kettle 1, an intermediate kettle 2, and a sterilization kettle 3. The filtration kettle 1, the intermediate kettle 2, and the sterilization kettle 3 are all installed on the ship. The filtration kettle 1 is installed on the top of the intermediate kettle 2, and the sterilization kettle 3 is installed on one side of the intermediate kettle 2. In this embodiment, a filter plate 11 is installed in the filtration kettle 1. The filter plate 11 is horizontally arranged. The filter plate 11 divides the interior of the filtration kettle 1 into a sinking area 12 and a floating area 13. The floating area 13 is located at the top of the sinking area 12. A plurality of filter holes 111 are formed on the plate surface of the filter plate 11. The sinking area 12 and the floating area 13 communicate with each other through the filter holes 111.

[0030] The filtration kettle 1 is connected with a water inlet pipe 6. The outlet end of the water inlet pipe 6 extends into the sinking area 12. A first connecting pipe 4 is connected between the filtration kettle 1 and the intermediate kettle 2. The inlet end of the first connecting pipe 4 communicates with the floating area 13, and the outlet end of the first connecting pipe 4 communicates with the interior of the intermediate kettle 2. A second connecting pipe 5 is connected between the intermediate kettle 2 and the sterilization kettle 3. The inlet end of the second connecting pipe 5 communicates with the interior of the intermediate kettle 2, and the outlet end of the second connecting pipe 5 communicates with the interior of the sterilization kettle 3. In this embodiment, the inlet end of the first connecting pipe 4 is lower than the water surface height in the floating area 13, and the inlet end of the second connecting pipe 5 is lower than the water surface height in the intermediate kettle 2.

[0031] Refer to Figure 1 , A first float valve 61 is installed on the water inlet pipe 6. The first float valve 61 is located in the floating area 13 and the height of the first float valve 61 is higher than the inlet end of the first connecting pipe 4. When the float of the first float valve 61 floats to the highest position, the first float valve 61 closes the water inlet pipe 6. A second float valve 41 is installed on the first connecting pipe 4. The second float valve 41 is located in the intermediate kettle 2 and the height of the second float valve 41 is higher than the inlet end of the second connecting pipe 5. When the float of the second float valve 41 floats to the highest position, the second float valve 41 closes the first connecting pipe 4.

[0032] Refer to Figure 1 , Figure 2 , A guide plate 31 is installed in the sterilization kettle 3. A plurality of guide plates 31 are arranged at intervals along the height direction. The height of the outlet end of the second connecting pipe 5 is higher than the height of all the guide plates 31. A water falling port 311 is formed between one side of each guide plate 31 and the inner wall of the sterilization kettle 3. The water falling ports 311 of two adjacent guide plates 31 are arranged in a staggered manner. In this embodiment, the height of the guide plate 31 gradually decreases from the side far away from the water falling port 311 to the side close to the water falling port 311.

[0033] A plurality of sleeves 32 are installed in the sterilization kettle 3, and the plurality of sleeves 32 are arranged corresponding to the plurality of guide plates 31. Each sleeve 32 is located above the corresponding guide plate 31; an ultraviolet germicidal lamp (not shown in the figure) is installed in the sterilization kettle 3, and the number of ultraviolet germicidal lamps corresponds to the number of sleeves 32. Each ultraviolet germicidal lamp is installed in the corresponding sleeve 32.

[0034] Referring to Figure 1 , Figure 2 , a closing strip 33 is installed at each water outlet 311. An installation strip 36 is fixedly installed on the inner wall of the sterilization kettle 3. The top wall of the closing strip 33 is connected with a sliding rod 331. The lower end of the sliding rod 331 is fixedly connected to the top wall of the closing strip 33. The upper end of the sliding rod 331 penetrates through the installation strip 36. The closing strip 33 is slidably installed on the installation strip 36 of the sterilization kettle 3 through the sliding rod 331; a return spring 34 is sleeved on the outer peripheral side of the sliding rod 331. One end of the return spring 34 is fixedly connected to the closing strip 33, and the other end is fixedly connected to the installation strip 36. Under normal conditions, the return spring 34 forces the closing strip 33 to close the water outlet 311; a buoyancy strip 35 for pulling the 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 upward and drives the closing strip 33 to open the water outlet 311.

[0035] Referring to Figure 1 , it should be noted that a pneumatic valve 51 is installed on the second connecting pipe 5, and the opening and closing of the second connecting pipe 5 are controlled by the pneumatic valve 51; in actual operation, according to the preset program, the opening and closing of the pneumatic valve 51 are controlled, and the opening and closing of the second connecting pipe 5 are controlled intermittently, so that the water in the intermediate kettle 2 can flow into the sterilization kettle 3 intermittently for sterilization treatment.

[0036] The implementation principle of Embodiment 1 of this application is as follows: The water to be treated is introduced into the sinking area 12 of the filtration kettle 1 through the water inlet pipe 6. The filter plate 11 can filter the water, so that larger impurities or suspended matters can be isolated in the sinking area 12, thereby filtering most of the impurities and suspended matters in the water. After the smaller and lighter suspended matters pass through the filter plate 11, they can float on the water surface of the floating area 13. The inlet end of the first connecting pipe 4 is lower than the water surface height in the floating area 13, so as to reduce the possibility of such suspended matters entering the intermediate kettle 2.

[0037] After the water flow enters the intermediate kettle 2, it stands still in the intermediate kettle 2, so that a small part of the suspended matters that enter the intermediate kettle 2 along with the water flow can float on the water surface of the intermediate kettle 2. The inlet end of the second connecting pipe 5 is lower than the water surface height in the intermediate kettle 2, so as to reduce the possibility of suspended matters entering the sterilization kettle 3. Through the two-stage treatment of the filtration kettle 1 and the intermediate kettle 2, the impurities or suspended matters in the water entering the sterilization kettle 3 are greatly reduced, and further, the sterilization effect of the ultraviolet germicidal lamp on the water body in the sterilization kettle 3 can be improved.

[0038] Under normal conditions, the opening and closing strip 33 closes the water outlet 311 under the action of the return spring 34, so that when the water level on the diversion plate 31 needs to reach a certain height, the opening and closing strip 33 can open the water outlet 311 under the action of the buoyancy strip 35, so that the water flow falls into the next diversion plate 31. That is, when the water level on the diversion plate 31 does not reach the preset height, the water outlet 311 of the diversion plate 31 is always in a closed state, increasing the residence time of the water flow on the diversion plate 31, and thus providing sufficient ultraviolet irradiation time for the ultraviolet germicidal lamp and improving the sterilization effect.

[0039] Embodiment 2: The embodiment of the present application discloses a water treatment and purification system for a ship.

[0040] The difference between the water treatment and purification system for a ship disclosed in the embodiment of the present application and Embodiment 1 is that: Referring to Figure 3 , Figure 4 , in this embodiment, a plurality of aeration pipes 14 are installed in the filtration kettle 1, and 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 filtration kettle 1 and is used to connect a gas supply device (not shown in the figure). A plurality of air holes 141 communicating with the inside of the aeration pipe 14 are formed in the outer peripheral wall of the aeration pipe 14, and the plurality of air holes 141 are arranged at intervals along the length direction of the aeration pipe 14; an opening and closing sleeve 15 is sleeved on the outer peripheral wall of each aeration pipe 14, and the opening and closing sleeve 15 is rotatably installed on the outer peripheral wall of the aeration pipe 14 to be able to rotate around its own central axis. A communication groove 151 is formed in the outer peripheral wall of the opening and closing sleeve 15, and both ends of the communication groove 151 extend along the length direction of the opening and closing sleeve 15.

[0041] The filtration kettle 1 is provided with a driving 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 driving assembly 7 includes a driving rack 71, a driving gear 72 and a driving member. The driving rack 71 is fixedly installed on the top wall of the sliding strip 16, and both ends of the driving rack 71 extend along the length direction of the sliding strip 16; the number of driving gears 72 corresponds to the number of opening and closing sleeves 15. Each driving gear 72 is coaxially fixed to the outer peripheral wall of the corresponding opening and closing sleeve 15, and the driving rack 71 meshes with all the driving gears 72.

[0042] Referring to Figure 3 , Figure 4, a driving member is arranged on the filtration kettle 1 for driving the sliding bar 16 to slide along its own length direction. In this embodiment, the driving member is set as a driving cylinder 73. The cylinder block of the driving cylinder 73 is fixedly installed on the side wall of the filtration kettle 1, and the piston rod of the driving cylinder 73 extends into the floating zone 13 and is connected to the sliding bar 16. When the piston rod of the driving cylinder 73 extends outwards, the communication groove 151 of the opening and closing sleeve 15 communicates with the air injection holes 141 of the air injection pipe 14 (i.e., the air injection pipe 14 is opened). When the piston rod of the driving cylinder 73 contracts inwards, the communication groove 151 of the opening and closing sleeve 15 is misaligned with the air injection holes 141 of the air injection pipe 14 (i.e., the air injection pipe 14 is closed). It should be noted that in other embodiments, in order to improve the sealing performance of the filtration kettle 1, the driving cylinder 73 can be installed on the top of the filtration kettle 1 and connected to the sliding bar 16 through a frame body.

[0043] The implementation principle of Embodiment 2 of this application is as follows: When it is necessary to supplement water to the intermediate kettle 2, the piston rod of the driving cylinder 73 extends outwards, driving the opening and closing sleeve 15 to rotate, so that the communication groove 151 communicates with the air injection holes 141 of the air injection pipe 14 to open the air injection pipe 14. The air injection pipe 14 blows air into the floating zone 13, and the generated bubbles rise towards the water surface in the floating zone 13. During this process, the bubbles can bring the suspended substances in the water to the water surface, so that the suspended substances can float on the water surface as much as possible, reducing the possibility of the suspended substances entering the intermediate kettle 2, and thus improving the sterilization effect. After the water in the intermediate kettle 2 is supplemented, the piston rod of the driving cylinder 73 is driven to contract, forcing the communication groove 151 and the air injection holes 141 to be misaligned, and then the air injection pipe 14 can be shut down, improving the operation convenience of the overall structure.

[0044] Embodiment 3: The embodiment of this application discloses a water treatment and purification system for ships.

[0045] The difference between the water treatment and purification system for ships disclosed in the embodiment of this application and Embodiment 2 is that: Referring to Figure 5 、 Figure 6 , in this embodiment, an opening and closing seat 8 is fixedly installed on the outer wall of the filtration kettle 1. A communication cavity 81 is opened in the opening and closing seat 8. The communication cavity 81 communicates with the floating zone 13. The inlet end of the first connecting pipe 4 is connected to the communication cavity 81; an opening and closing component 9 is arranged between the communication cavity 81 and the floating zone 13. When the opening and closing sleeve 15 opens the air injection pipe 14 (i.e., when the piston rod of the driving cylinder 73 extends outwards), the opening and closing component 9 opens the communication cavity 81. When the opening and closing sleeve 15 closes the air injection pipe 14 (i.e., when the piston rod of the driving cylinder 73 contracts inwards), the opening and closing component 9 closes the communication cavity 81.

[0046] Referring to 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 communication cavity 81. The opening and closing plate 91 is hinged to the opening of the communication cavity 81 through the rotating rod 93 for opening and closing the communication 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 kettle 1, and the reset torsion spring forces the opening and closing plate 91 to flip and open the communication cavity 81.

[0047] A connecting bar 161 is installed on the top wall of the sliding bar 16. One end of the push rod 92 is fixedly connected to the connecting bar 161. The push bar is connected to the sliding bar 16 through the connecting bar 161. When the sliding bar 16 forces the closing sleeve 15 to close the air supply pipe 14 (that is, when the piston rod of the driving cylinder 73 contracts inward), the push rod 92 forces the opening and closing plate 91 to flip and close the communication cavity 81. When the sliding bar 16 forces the closing sleeve 15 to open the air supply pipe 14 (that is, when the piston rod of the driving cylinder 73 extends outward), the push rod 92 disengages from the opening and closing plate 91.

[0048] Refer to 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 turns into the floating area 13, and the lower side of the opening and closing plate 91 turns into the communication cavity 81. And when the opening and closing plate 91 is in the open state, a first through port 911 is formed between the upper side of the opening and closing plate 91 and the inner wall of the filter kettle 1, and a second through port 912 is formed between the lower side of the opening and closing plate 91 and the inner wall of the communication cavity 81.

[0049] A flow hole 913 is formed on the plate surface of the opening and closing plate 91. 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 through port 911. The inner wall of the floating area 13 has an abutting surface 17. When the opening and closing plate 91 is in the closed state, the opening and closing plate 91 abuts against the abutting surface 17, and the abutting surface 17 blocks the flow hole 913.

[0050] The implementation principle of Embodiment 3 of this application is as follows: Under normal conditions (when the intermediate kettle 2 does not need to be supplemented with water), at this time, the sliding bar 16 forces the closing sleeve 15 to close the air supply 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 communication cavity 81, reducing the possibility of suspended solids in the water in the floating area 13 entering the first connecting pipe 4. When it is necessary to supplement water to the intermediate kettle 2, the sliding bar 16 is forced to slide to open the air supply pipe 14. At this time, the sliding bar 16 drives the push rod 92 to disengage from the opening and closing plate 91. The opening and closing plate 91 flips and opens the communication cavity 81 under the action of the reset torsion spring, so that the water in the floating area 13 can enter the first connecting pipe 4, improving the operation convenience of the overall structure.

[0051] When the opening and closing plate 91 is in the open state, a first through port 911 and a second through port 912 are formed, enabling the water in the floating area 13 to flow into the communication cavity 81 through the first through port 911 and the second through port 912 respectively. When the opening and closing plate 91 is in the open state, the bubbles generated by the aeration pipe 14 float up, can enter the first through port 911 through the circulation hole 913, and float up to the water surface from the first through port 911. The achieved effect is that when the bubbles pass through the first through port 911, they can carry away the suspended substances in the water entering the first through port 911, further reducing the possibility of the suspended substances entering the communication cavity 81, and greatly improving the filtering effect on the suspended substances.

[0052] The above is the preferred embodiment of the present application, and does not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A water treatment and purification system for ships, characterized in that: It includes a filtering kettle (1), an intermediate kettle (2) and a sterilizing kettle (3). A first connecting pipe (4) is connected between the filtering kettle (1) and the intermediate kettle (2), and a second connecting pipe (5) is connected between the intermediate kettle (2) and the sterilizing kettle (3). An ultraviolet germicidal lamp is provided in the sterilizing kettle (3); a filter plate (11) is arranged in the filtering kettle (1), and the filter plate (11) divides the interior of the filtering kettle (1) into a sinking area (12) and a floating area (13). A plurality of filter holes (111) are formed on the plate surface of the filter plate (11); the filtering kettle (1) is connected with a water inlet pipe (6), and the outlet end of the water inlet pipe (6) extends to the sinking area (12); the inlet end of the first connecting pipe (4) communicates with the floating area (13), and the inlet end of the first connecting pipe (4) is lower than the water surface height in the floating area (13), and the inlet end of the second connecting pipe (5) is lower than the water surface height in the intermediate kettle (2).

2. The water treatment and purification system for a ship according to claim 1, characterized in that: A flow guide plate (31) is provided in the sterilizing kettle (3). A plurality of flow guide plates (31) are arranged at intervals in the height direction. A water falling port (311) is formed between one side of each flow guide plate (31) and the inner wall of the sterilizing kettle (3). The water falling ports (311) of two adjacent flow guide plates (31) are arranged in a staggered manner; a sleeve (32) is arranged on each flow guide plate (31), and the number of the ultraviolet germicidal lamps corresponds to the number of the sleeves (32), and each ultraviolet germicidal lamp is installed in the corresponding sleeve (32).

3. The water treatment and purification system for a ship according to claim 2, characterized in that: The flow guide plate (31) gradually decreases in height from the side away from the water falling port (311) to the side close to the water falling port (311).

4. A water treatment and purification system for a ship according to claim 2, characterized in that: An opening and closing strip (33) is slidably installed at the water falling port (311). A return spring (34) is arranged between the opening and closing strip (33) and the inner wall of the sterilizing kettle (3), and the return spring (34) forces the opening and closing strip (33) to close the water falling port (311); the opening and closing strip (33) is connected with a buoyancy strip (35) for pulling the opening and closing strip (33).

5. The water treatment and purification system for a ship according to claim 1, characterized in that: A first float valve (61) located in the floating area (13) is installed on the water inlet pipe (6). When the float of the first float valve (61) floats to the highest position, the first float valve (61) closes the water inlet pipe (6); a second float valve (41) located in the intermediate kettle (2) is installed on the first connecting pipe (4). When the float of the second float valve (41) floats to the highest position, the second float valve (41) closes the first connecting pipe (4).

6. The water treatment and purification system for a ship according to claim 1, characterized in that: An air diffuser pipe (14) is installed on the filter plate (11). A plurality of air diffuser holes (141) are formed on the peripheral wall of the air diffuser pipe (14), and the plurality of air diffuser holes (141) are arranged at intervals along the length direction of the air diffuser pipe (14); an opening and closing sleeve (15) is rotatably installed on the outer peripheral wall of the air diffuser pipe (14), a communication groove (151) is formed on the outer peripheral wall of the opening and closing sleeve (15), and both ends of the communication groove (151) extend along the length direction of the opening and closing sleeve (15); the filtering kettle (1) is provided with a driving assembly (7) for driving the opening and closing sleeve (15) to rotate.

7. The water treatment and purification system for a ship according to claim 6, characterized in that: The upper surface of the filter plate (11) is slidably mounted with a slide bar (16). The driving assembly (7) includes a driving rack (71), a driving gear (72) and a driving member. The driving rack (71) is mounted on the slide bar (16). Both ends of the driving rack (71) extend along the length direction of the slide bar (16). The driving gear (72) is coaxially connected to the outer peripheral wall of the opening and closing sleeve (15) and meshes with the driving rack (71) for transmission. The driving member is arranged on the filter kettle (1) to drive the slide bar (16) to slide along its own length direction.

8. A water treatment and purification system for a ship according to claim 7, characterized in that: An opening and closing seat (8) is provided on the outer wall of the filter kettle (1). A communication cavity (81) communicating with the floating zone (13) is formed in the opening and closing seat (8). The inlet end of the first connecting pipe (4) is communicated with the communication cavity (81). An opening and closing assembly (9) is arranged between the communication cavity (81) and the floating zone (13). When the opening and closing sleeve (15) opens the air supply pipe (14), the opening and closing assembly (9) opens the communication cavity (81). When the opening and closing sleeve (15) closes the air supply pipe (14), the opening and closing assembly (9) closes the communication cavity (81).

9. The water treatment and purification system for a ship according to claim 8, characterized in that: The opening and closing assembly (9) includes an opening and closing plate (91), a return torsion spring and a push rod (92). The opening and closing plate (91) is hinged at the opening of the communication cavity (81). The return torsion spring is arranged between the opening and closing plate (91) and the inner wall of the filter kettle (1). The return torsion spring forces the opening and closing plate (91) to turn over and open the communication cavity (81). One end of the push rod (92) is connected to the slide bar (16). When the slide bar (16) forces the opening and closing sleeve (15) to close the air supply pipe (14), the push rod (92) forces the opening and closing plate (91) to turn over and close the communication cavity (81).

10. A water treatment and purification system for a ship according to claim 9, 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) turns into the floating zone (13), and the lower side of the opening and closing plate (91) turns into the communication cavity (81). And when the opening and closing plate (91) is in the open state, a first through port (911) is formed between the upper side of the opening and closing plate (91) and the inner wall of the filter kettle (1), and a second through port (912) is formed between the lower side of the opening and closing plate (91) and the inner wall of the communication cavity (81). A circulation hole (913) is formed in the plate surface of the opening and closing plate (91). When the opening and closing plate (91) is in the open state, the circulation hole (913) rotates to face the inlet end of the first through port (911).

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