An integrated modular water purification equipment

Abstract

The present application relates to an integrated modular water purification equipment, including a modular integrated water purification device composed of a water purification module, a water filtration treatment module, a softening treatment module, a reverse osmosis treatment module, a disinfection module, a power source module and a water purification tank. A plurality of installation slots inclined downward and interconnected are evenly spaced in the vertical direction on the water purification module. The water filtration treatment module, the softening treatment module, the reverse osmosis treatment module and the disinfection module can be detachably arranged in the installation slots. A water inlet is arranged on the top of the water purification module to connect an external pumping member. The water inlet is provided with an automatic sealer, and the water inlet is sealed when any installation slot is empty. The power source module is arranged at the bottom of the water purification module and is connected to the installation slot at the bottom of the water purification module to realize the pressurized flow of the purified water source in the water purification module to the water purification tank. The present application has the effect of stable compliance, safety and reliability, modular customization, convenient installation, fast water purification and low operating cost.

Description

Technical Field

[0001] The present application relates to the technical field of water purification, and in particular to an integrated modular water purification device. Background Art

[0002] In addition to natural and geographical factors, factors such as economic development level and water resource distribution have determined that small-scale centralized water supply and decentralized water supply projects are an important model of rural water supply at the current stage and in the future.

[0003] As an important part of small-scale centralized water supply and decentralized water supply, the integrated water purification system is basically composed of flocculation, sedimentation, filtration and disinfection. This process is simple to operate and has low operating costs. Traditional flocculation usually uses mechanical stirring flocculation, with large installed power and short maintenance cycle. For rural or remote areas, it is not easy to achieve frequent mechanical maintenance and repair; the traditional filtration method is mainly sand filtration. Although the investment cost of sand filtration technology is low, sand filtration has certain restrictions on the quality of influent water. It is more appropriate to use sand filtration technology when the influent water quality is good. The filtration effect is greatly reduced for influent with high turbidity and large biomass such as algae. The effluent water quality is also greatly affected by water volume fluctuations, and the removal effect of bacteria and other microorganisms is not ideal; for influent water quality is poor, such as seasonal algae outbreaks, high turbidity influent, and high bacteria / virus influent conditions, ultrafiltration membrane filtration can provide sufficient barriers for the removal of algae, colloidal particles, microorganisms, etc., so that the effluent is safer and more stable to meet the standards. Therefore, in practical applications, the water purification process should be selected based on comprehensive factors such as raw water characteristics, drinking water demand, local terrain and economic conditions, so as to provide a water purification system that is stable, meets standards, safe and reliable, modularly customizable and has low operating costs. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an integrated modular water purification equipment, which makes the water purification system into a modular integrated type. Different water treatment processes can be integrated into the integrated water purification equipment. At the same time, the water treatment method can also be replaced, thereby achieving stable compliance with standards, safety and reliability, modular customization, easy installation, fast water purification and low operating cost.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] An integrated modular water purification equipment comprises an integrated water purification device and an external dosing module; the integrated water purification device comprises a water purification module, a water filtration treatment module, a softening treatment module, a reverse osmosis treatment module, a disinfection module, a power source module and a water purification tank; a plurality of downwardly inclined installation grooves are evenly spaced in the vertical direction on the water purification module, and the plurality of installation grooves are interconnected; the water filtration treatment module, the softening treatment module, the reverse osmosis treatment module and the disinfection module can be detachably arranged in the installation grooves and the installation sequence can be changed according to demand, so that the integrated water purification device is modularly arranged as a whole; a water inlet is arranged on the top of the water purification module to connect an external water pumping member, and the water inlet is provided with an automatic sealer, and the water inlet is sealed when any installation groove is empty; the power source module is arranged at the bottom of the water purification module and is connected to the installation groove at the bottom of the water purification module to realize the pressurized flow of the purified water source in the water purification module to the water purification tank, and the external dosing module is connected to the water purification tank.

[0007] Preferably, the water filtration treatment module includes a sedimentation frame, an alum hydrolysis material layer, a softening resin material layer, a copper-zinc alloy material layer and an activated carbon material layer. A plurality of storage tanks are provided in the sedimentation frame, one side of the storage tank is open and provided with a cover, and at least one group of the alum hydrolysis material layer, the softening resin material layer, the copper-zinc alloy material layer and the activated carbon material layer are provided and are respectively filled in the storage tank.

[0008] Preferably, the softening treatment module includes an outer shell, an electromagnet and a filter membrane layer, the outer shell is in a "mouth" shape, the outer shell is inserted and fixed in the installation groove, the electromagnet is arranged in the outer shell, and the filter membrane layer is detachably arranged between the inner walls of the outer shell.

[0009] Preferably, the reverse osmosis treatment module includes an osmosis frame, a graphene filter membrane and a reverse osmosis membrane. The osmosis frame and the graphene filter membrane are respectively provided with two, the graphene filter membrane is detachably connected to the osmosis frame, the two osmosis frames are detachably connected and the two layers of the graphene filter membrane are adhered when connected, and the reverse osmosis membrane is arranged between the two layers of the graphene filter membrane.

[0010] Furthermore, a high-frequency vibrator is connected between the two infiltration frames, and a vibration reduction module is arranged outside the two infiltration frames.

[0011] Preferably, the disinfection module comprises a disinfection frame and an ultraviolet lamp. The disinfection frame is a glass frame. A plurality of disinfection slots are provided through the disinfection frame. The ultraviolet lamp is provided on each inner wall of the disinfection slots.

[0012] Furthermore, the side wall of the disinfection frame facing the water inlet is arranged in an inverted cone shape, and the disinfection groove is a diamond-shaped groove.

[0013] Preferably, the power source module includes a suction pump and a suction pipe, the bottom wall of the water purification model is provided with a plurality of suction ports, the suction pump is provided with a plurality of portions arranged in a circular array at the bottom of the water purification model, the liquid inlet of the suction pump is connected with the suction port through the suction pipe, and the suction pump and the suction port are staggered so that the suction pipe is inclined, and the liquid outlet of the suction pump is connected with the water purification tank.

[0014] Preferably, the water filtration treatment module, softening treatment module, reverse osmosis treatment module and disinfection module are all installed in the installation groove through a limit frame, the limit frame is hollow and has an opening on the top wall, a flow groove is opened through the bottom wall of the limit frame, and high-position plug-in plates are provided on the side walls of the limit frame except the plug-in side. The high-position plug-in plate and the side wall of the limit frame are stepped, and a card slot for plugging with the high-position plug-in plate is opened on the water purification model.

[0015] Preferably, a pressure sensor is provided on the inner wall of the mounting groove, the automatic sealer is a blade-type shutter rotating opening and closing mechanism, and the automatic sealer is connected to the plurality of pressure sensor signals.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. When the present invention is used, the water source to be purified is introduced into the water inlet of the purification module, and the water source to be purified is filtered, softened, deeply filtered and disinfected by the filtration water treatment module, the softening treatment module, the reverse osmosis treatment module and the disinfection module in sequence, and then introduced into the water purification pool to complete the entire water purification process. After the purified water is stored in the water purification pool, it can also be further sterilized and disinfected by adding medicine through the external dosing module, and each module is modularly installed through a limit frame, and water purification equipment of different sizes can be customized according to the required size. The installation is convenient and fast, safe and reliable, and the water purification effect is good, and regular cleaning can be performed.

[0018] 2. When the present invention is used, the installation of each module is achieved through a limit frame, and a pressure sensor connected to the automatic sealer signal is provided. When any module is disassembled, repaired or replaced, the device stops moving to ensure safety. After all the installation slots are installed with modules, the water inlet can be automatically opened to perform water purification operations. In actual use, more processing modules can be further adapted according to water source conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an integrated modular water purification device of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of an integrated modular water purification device of the present invention. Figure 2 ;

[0021] Figure 3 It is a structural schematic diagram of a water filtration treatment module in an integrated modular water purification device of the present invention;

[0022] Figure 4 It is a structural schematic diagram of a softening treatment module in an integrated modular water purification device of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a reverse osmosis treatment module in an integrated modular water purification device of the present invention;

[0024] Figure 6 It is a schematic diagram of the explosion structure of a reverse osmosis treatment module in an integrated modular water purification device of the present invention;

[0025] Figure 7 It is a structural schematic diagram of a disinfection module in an integrated modular water purification device of the present invention.

[0026] Figure numerals: 1, integrated water purification device; 11, water purification model; 111, installation groove; 112, water inlet; 113, suction port; 12, water filtration treatment module; 121, sedimentation frame; 122, alum hydrolysis material layer; 123, softening resin material layer; 124, copper-zinc alloy material layer; 125, activated carbon material layer; 13, softening treatment module; 131, outer shell; 132, electromagnet; 133, filter membrane layer; 14, reverse osmosis treatment module; 141, osmosis frame; 142, graphene filter Membrane; 143, reverse osmosis membrane; 15, disinfection module; 151, disinfection frame; 1511, disinfection tank; 152, ultraviolet lamp; 16, power source module; 161, suction pump; 162, suction pipe; 17, water purification tank; 2, external dosing module; 3, tablet pressing; 4, vibration reduction module; 41, vibration reduction frame; 42, clamping frame; 43, fixing screw; 44, shock-absorbing spring one; 45, shock-absorbing spring two; 5, limit frame; 51, high-position plug-in board; 6, pressure sensor; 7, automatic sealer; 8, high-frequency vibrator. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0028] Unless otherwise defined, the technical terms or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "one" or "an" and the like used in the patent application specification and claims of this application do not indicate a quantity limitation, but indicate the existence of at least one.

[0029] The following is combined with Figure 1-7 This application is described in further detail.

[0030] Reference Figure 1 and Figure 2 An integrated modular water purification equipment comprises an integrated water purification device 1 and an external dosing module 2. The integrated water purification device 1 is used for filtering, softening, deep filtering, disinfecting and storing the water source to be purified. The external dosing module 2 is connected to the integrated water purification device 1 for further sterilization, disinfection and descaling of the water source after the water purification treatment.

[0031] Reference Figure 1-Figure 7 The integrated water purification device 1 includes a water purification model 11, a water filtration treatment module 12, a softening treatment module 13, a reverse osmosis treatment module 14, a disinfection module 15, a power source module 16 and a water purification tank 17. The water purification model 11 can be of any shape. In this embodiment, the water purification model 11 is a rectangular model with the longest side in the height direction. A plurality of downwardly inclined installation grooves 111 are evenly spaced in the vertical direction on the water purification model 11. The plurality of installation grooves 111 are interconnected. The water filtration treatment module 12, the softening treatment module 13, the reverse osmosis treatment module 14 and the disinfection module 15 are detachably installed in the installation tank 17 through the limiting frame 5 in sequence. The integration and modularization of the integrated water purification device 1 are realized in the groove 111. A water inlet 112 is provided on the top of the water purification module 11 to connect an external pumping component to pump the water source to be purified into the integrated water purification device 1. An automatic sealer 7 is provided in the water inlet 112 to realize the opening and closing of the water inlet 112. The water inlet 112 is sealed when any installation groove 111 is empty; the power source module 16 is installed at the bottom of the water purification module 11 and is connected to the installation groove 111 at the bottom of the water purification module 11 to realize the pressurized flow of the purified water source in the water purification module 11 to the clean water tank 17 for storage, and the external dosing module 2 is connected to the clean water tank 17 for dosing.

[0032] Reference Figure 3In a further embodiment, the water filtration treatment module 12 includes a sedimentation frame 121, an alum hydrolysis material layer 122, a softening resin material layer 123, a copper-zinc alloy material layer 124 and an activated carbon material layer 125. A plurality of storage slots are provided in the sedimentation frame 121, and a plurality of through holes are provided through the sedimentation frame 121. A cover is hingedly fastened on one side of the sedimentation frame 121 to cover the plurality of storage slots at the same time. At least one group of the alum hydrolysis material layer 122, the softening resin material layer 123, the copper-zinc alloy material layer 124 and the activated carbon material layer 125 are provided and filled in the storage slots respectively. In actual use, the user can select and match the material layers according to the water quality conditions. Each material layer is filled with at least one group. The redundant storage slots can be filled with the material layers with larger demand, or can be left unfilled.

[0033] The aluminum ions in the alum hydrolysis material layer 122 are hydrolyzed to generate aluminum hydroxide colloid, which has adsorption properties and can adsorb suspended matter in water to purify water; the softening resin material layer 123 is mainly used to reduce the hardness of water, and removes calcium and magnesium ions in water through ion exchange technology, thereby reducing the formation of scale and extending the service life of the equipment and reducing maintenance costs; the copper-zinc alloy material layer 124 is preferably KDF copper-zinc alloy, which utilizes the principle of redox reaction to effectively remove chlorine and various heavy metal ions in water and inhibit the growth of bacteria and fungi; the activated carbon material layer 125 has a strong adsorption capacity due to its huge surface area and developed microporous structure, and can effectively remove odor, chlorine, cyanide and various heavy metal ions and other harmful substances in water, and also has a good decolorization effect. Whether the water filtration treatment module 12 is set on the first layer of the purification module or close to the last layer, it can have a good precipitation and filtration effect.

[0034] Reference Figure 4 In a further embodiment, the softening treatment module 13 includes an outer shell 131, an electromagnet 132 and a filter membrane layer 133. The outer shell 131 is in a "mouth" shape. The outer shell 131 is inserted and fixed in the installation groove 111. The electromagnet 132 is installed in the outer shell 131. The filter membrane layer 133 is fixed between the inner walls of the outer shell 131 by the cooperation of bolts and pressure blocks. When in use, the water source to be purified flows downward, and the electromagnet 132 generates a strong magnetic field to magnetize the water molecules, changing the molecular structure and properties of the water, thereby improving the antioxidant capacity and stability of the water while softening the water source.

[0035] Reference Figure 5 and Figure 6In a further embodiment, the reverse osmosis processing module 14 includes an osmosis frame 141, a graphene filter membrane 142 and a reverse osmosis membrane 143. The osmosis frame 141 and the graphene filter membrane 142 are respectively provided with two, and the graphene filter membrane 142 is detachably connected to the osmosis frame 141. Specifically, two isosceles right-angled triangle pressing sheets 3 are arranged at intervals at the four corners of the osmosis frame 141. The pressing sheet 3 is integrally formed with the osmosis frame 141, and a threaded hole is opened through the pressing sheet 3. The graphene filter membrane 142 is detachably connected to the osmosis frame 141. The four corners of the filter membrane 142 are provided with sockets that match the threaded holes, so that the graphene filter membrane 142 can be quickly installed and fixed. The two osmosis frames 141 are detachably connected by bolts and the two layers of graphene filter membranes 142 are fitted together when connected. The reverse osmosis membrane 143 is installed between the two layers of graphene filter membranes 142. The four corners of the reverse osmosis membrane 143 are also provided with sockets that match the threaded holes. When installed, the reverse osmosis membrane 143 is positioned between the adjacent pressing sheets 3 of the two osmosis frames 141.

[0036] The graphene filter membrane 142 can efficiently filter impurities, bacteria, viruses and heavy metals in water at a low cost, and the reverse osmosis membrane 143 can separate dissolved substances, organic matter and microorganisms in water under a pressure higher than the osmotic pressure.

[0037] In a further embodiment, a high-frequency vibrator 8 is connected and installed between the two infiltration frames 141, and a vibration reduction module 4 is installed outside the two infiltration frames 141. The vibration reduction module 4 includes a vibration reduction frame 41, a clamping frame 42, a fixing screw 43, a shock-absorbing spring 1 44 and a shock-absorbing spring 2 45. The vibration reduction frame 41 is a hollow frame with upper and lower openings. The clamping frame 42 is connected to the inner bottom wall of the vibration reduction frame 41 through the shock-absorbing spring 1 44, and the fixing screw 43 is movably connected to the inner top wall of the clamping frame 42 through the shock-absorbing spring 2 45. The fixed screw 43 can be screwed into the clamp frame 42. The clamp frame 42 is preferably four and is arranged at the four corners of the vibration reduction frame 41. Two fixed osmosis frames 141 are fixed in the clamp frame 42. High-frequency vibration can destroy the van der Waals force between the graphene layers through mechanical action, making it easier to disperse and filter, further improving the filtration efficiency of the reverse osmosis treatment module 14. The vibration reduction module 4 can reduce the possibility of the reverse osmosis treatment module 14 vibrating and colliding with the water purification model 11 to damage the device and cause noise.

[0038] Reference Figure 7In a further embodiment, the disinfection module 15 includes a disinfection frame 151 and an ultraviolet lamp 152. The disinfection frame 151 is a glass frame. A plurality of disinfection grooves 1511 are provided through the disinfection frame 151. The plurality of disinfection grooves 1511 are evenly spaced. Ultraviolet lamps 152 are installed on each inner wall of the disinfection grooves 1511. The side wall of the disinfection frame 151 facing the water inlet 112 is in an inverted cone shape. The disinfection grooves 1511 are diamond-shaped grooves. The disinfection frame 151 made of glass makes the disinfection frame 151 as a whole have good light transmittance. When in use, water flows from the upper layer into the disinfection module 15. The water flows through the disinfection grooves 1511 and is disinfected by ultraviolet light. The water flowing to the top of the disinfection frame 151 is guided downward by the inverted cone top wall and is also continuously disinfected by ultraviolet light, thereby achieving the purpose of sufficient and efficient disinfection.

[0039] Reference Figure 1 and Figure 2 In a further embodiment, the power source module 16 includes a suction pump 161 and a suction pipe 162. The bottom wall of the water purification model 11 is integrally formed with a plurality of suction ports 113. The suction pump 161 is installed with a plurality of portions arranged in a circular array at the bottom of the water purification model 11. The liquid inlet of the suction pump 161 is connected with the suction port 113 through the suction pipe 162, and the suction pump 161 and the suction port 113 are staggered so that the suction pipe 162 is tilted. The water purification pool 17 is installed on one side of the water purification model 11. The liquid outlet of the suction pump 161 is connected with the water purification pool 17. When in use, the suction pump 161 provides suction power for the circulation of water. The suction pump 161 and the suction port 113 are staggered so that when suctioning, the water source in the water purification model 11 is sucked in a spiral manner, which can improve the suction efficiency while having a certain stirring effect and a certain flocculation effect.

[0040] Reference Figure 1 and Figure 2 The water filtration treatment module 12, the softening treatment module 13, the reverse osmosis treatment module 14 and the disinfection module 15 are all installed in the installation groove 111 through the limit frame 5. The limit frame 5 is hollow and has an opening on the top wall. The sedimentation frame 121, the vibration reduction frame 41, the outer shell 131 and the disinfection frame 151 are all transitionally matched and plugged into the limit frame 5. A flow groove is penetrated through the bottom wall of the limit frame 5. The side walls of the limit frame 5 except the plug-in side are integrally formed with a high-position plug-in board 51. The high-position plug-in board 51 and the side wall of the limit frame 5 are stepped. A card slot that is plugged with the high-position plug-in board 51 is opened on the water purification model 11. A sealing ring layer is bonded and fixed to the inner wall of the high-position plug-in board 51 to improve the overall sealing of the device.

[0041] Furthermore, a pressure sensor 6 is installed on the inner wall of the installation groove 111, and the automatic sealer 7 is a blade-type shutter rotating opening and closing mechanism. Multiple pressure sensors 6 are connected to the automatic sealer 7 by signal. In this embodiment, the use and signal connection methods of the pressure sensor 6 and the automatic sealer 7 are all existing technologies and will not be elaborated on. When any module is disassembled, assembled, repaired or replaced, the module is taken out from the installation groove 111, and the corresponding pressure sensor 6 immediately stops the operation of the integrated water purification device 1 to ensure safety. After all the modules are installed in all the installation grooves 111, the water inlet 112 can be automatically opened to perform water purification operations.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated modular water purification equipment, characterized in that: The invention comprises an integrated water purification device (1) and an external dosing module (2); the integrated water purification device (1) comprises a water purification model (11), a water filtration treatment module (12), a softening treatment module (13), a reverse osmosis treatment module (14), a disinfection module (15), a power source module (16) and a water purification pool (17); a plurality of downwardly inclined installation grooves (111) are evenly spaced in a vertical direction on the water purification model (11); the plurality of installation grooves (111) are interconnected; the water filtration treatment module (12), the softening treatment module (13), the reverse osmosis treatment module (14) and the disinfection module (15) are all detachably arranged in the installation grooves (111); ) is modularly arranged as a whole. A water inlet (112) is provided on the top of the water purification model (11) to connect to an external water pumping device. The water inlet (112) is provided with an automatic sealer (7). When any installation slot (111) is empty, the water inlet (112) is sealed. The power source module (16) is arranged at the bottom of the water purification model (11) and is connected to the installation slot (111) at the bottom of the water purification model (11) to realize the pressurized flow of the purified water source in the water purification model (11) to the water purification pool (17). The external dosing module (2) is connected to the water purification pool (17). The softening treatment module (13) includes an outer shell (131), an electromagnet (132) and a filter membrane layer (133). The outer shell (131) is in a "mouth" shape; the outer shell (131) is inserted and fixed in the installation groove (111); the electromagnet (132) is arranged in the outer shell (131); the filter membrane layer (133) is detachably arranged between the inner walls of the outer shell (131); the reverse osmosis treatment module (14) comprises an osmosis frame (141), a graphene filter membrane (142) and a reverse osmosis membrane (143); two osmosis frames (141) and two graphene filter membranes (142) are arranged respectively; the graphene filter membrane (142) is detachably connected to the osmosis frame (141); the two osmosis frames (141) are detachably connected and when connected, the two layers of the graphene filter membrane (142) are detachably connected to the inner wall of the outer shell (131); The reverse osmosis membrane (143) is arranged between two layers of graphene filter membranes (142); a high-frequency vibrator (8) is connected between the two osmosis frames (141), and a vibration reduction module (4) is arranged outside the two osmosis frames (141); the disinfection module (15) comprises a disinfection frame (151) and an ultraviolet lamp (152); the disinfection frame (151) is a glass frame, and a plurality of disinfection grooves (1511) are formed through the disinfection frame (151), and the ultraviolet lamp (152) is arranged on each inner wall of the disinfection groove (1511); the side wall of the disinfection frame (151) facing the water inlet (112) is arranged in an inverted cone shape, and the disinfection groove (1511) is a diamond-shaped groove;A pressure sensor (6) is arranged on the inner wall of the installation groove (111); the automatic sealer (7) is a blade-type shutter rotating opening and closing mechanism; the automatic sealer (7) is connected to the plurality of pressure sensors (6) by signal; the water filtration treatment module (12), the softening treatment module (13), the reverse osmosis treatment module (14) and the disinfection module (15) are all installed in the installation groove (111) through a limit frame (5); the limit frame (5) is hollow and has an opening on the top wall; a flow slot is provided through the bottom wall of the limit frame (5); a high-position plug board (51) is provided on the side walls of the limit frame (5) except the plug-in side; the high-position plug board (51) and the side wall of the limit frame (5) are arranged in a stepped manner; a card slot for plugging and cooperating with the high-position plug board (51) is provided on the water purification model (11); 2. The integrated modular water purification equipment according to claim 1, characterized in that: The water filtration treatment module (12) comprises a precipitation frame (121), an alum hydrolysis material layer (122), a softening resin material layer (123), a copper-zinc alloy material layer (124) and an activated carbon material layer (125); a plurality of storage tanks are provided in the precipitation frame (121); one side of the storage tanks is open and provided with a cover; at least one group of the alum hydrolysis material layer (122), the softening resin material layer (123), the copper-zinc alloy material layer (124) and the activated carbon material layer (125) is provided and respectively filled in the storage tanks.

3. The integrated modular water purification equipment according to claim 1, characterized in that: The power source module (16) comprises a suction pump (161) and a suction pipe (162); a plurality of suction ports (113) are provided on the bottom wall of the water purification model (11); the suction pump (161) is provided with a plurality of suction ports and arranged in a circular array at the bottom of the water purification model (11); a liquid inlet of the suction pump (161) is connected to the suction port (113) via the suction pipe (162); the suction pump (161) and the suction port (113) are staggered so that the suction pipe (162) is tilted; and a liquid outlet of the suction pump (161) is connected to the water purification pool (17).

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