A reverse osmosis component with internal circulation

Abstract

The present invention relates to the technical field of wastewater treatment, and discloses a reverse osmosis component with internal circulation, comprising a filter cartridge, a water outlet pipe is fixedly connected to the lower surface of the filter cartridge, a fixing frame is fixedly connected to the inner wall of the filter cartridge, a reverse osmosis filter element is fixedly connected to the inner surface of the fixing frame, a water pump is fixedly connected to the front end of the filter cartridge, a water delivery pipe is fixedly connected to the upper part of the water pump, and a return water cartridge is fixedly connected to the rear bottom end of the water delivery pipe. In the present invention, cleaning water can continuously clean the reverse osmosis filter element in the filter cartridge, when the water outlet leaves the circulating water pipe, the circulating water pipe is blocked by the water outlet ring, and the cleaning water cannot enter the filter cartridge from the circulating water pipe. When the cleaning water stays in the return water cartridge, it can be fully mixed with the reagent, thereby avoiding the cleaning water carrying a large amount of impurities from contacting the reverse osmosis filter element again, thereby improving the effect of circulating filtration.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a reverse osmosis component with internal circulation. Background Art

[0002] Reverse osmosis components are an important water treatment technology, widely used in drinking water purification, industrial treatment, and seawater desalination. After being used for too long, impurities will be stuck in the micropores of the reverse osmosis components, causing blockage of the reverse osmosis components and affecting the use effect. Therefore, it is necessary to clean the reverse osmosis components in time. Internal circulation cleaning is an effective way to clean reverse osmosis components. The reverse osmosis components can be cleaned by circulating tap water or other cleaning water in the circulation system to circulate and flush the reverse osmosis components.

[0003] Patent No. CN202322594918.0 discloses a reverse osmosis filtration component. A water conveyor with a water outlet is arranged above the shell of the patent. A connecting pipe is fixedly installed on the upper end of the shell. The connecting pipe is detachably connected to the reverse osmosis membrane filter element through a set of rings at one end inside the shell. A sealing cover is detachably connected to the lower end of the shell, and a sewage pipe connected to the inside of the shell is arranged at the central position of the sealing cover, and a valve is arranged on the sewage pipe. The liquid to be filtered is introduced through the water inlet and the valve of the sewage pipe is closed. The liquid between the shell and the filter element enters the inside of the filter element through the reverse osmosis filtration membrane, and is discharged through the connecting pipe and the water conveyor through the water outlet at last, so as to filter the liquid. After a period of use, the debris between the shell and the filter element can be discharged by opening the valve, the sealing cover can be removed, the inside of the shell can be cleaned, the filter element can be removed, the filter element can be cleaned and replaced, and the components can be graded and cleaned according to the actual situation, which reduces the frequency of disassembly and cleaning of the components and prolongs the service life of each component, thereby improving the product quality.

[0004] Although this patent solves the above problems, there is still a problem that the reverse osmosis component cannot be effectively cleaned without disassembling the reverse osmosis component, resulting in low filtering effect of the reverse osmosis component. Therefore, a reverse osmosis component with internal circulation is proposed to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a reverse osmosis component with internal circulation in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a reverse osmosis component with internal circulation, comprising a filter cartridge, a water outlet pipe is fixedly connected to the lower surface of the filter cartridge, a fixing frame is fixedly connected to the inner wall of the filter cartridge, a reverse osmosis filter element is fixedly connected to the inner surface of the fixing frame, a water pump is fixedly connected to the front end of the filter cartridge, a water delivery pipe is fixedly connected to the upper part of the water pump, a return water cartridge is fixedly connected to the rear bottom end of the water delivery pipe, a dosing pipe is fixedly connected to the upper surface of the return water cartridge, a water inlet pipe is fixedly connected to the upper surface of the return water cartridge, and a reverse osmosis filter element is fixedly connected to the inner surface of the fixing frame. A circulating water pipe, the front and rear ends of the water return cylinder are rotatably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a first fixed shaft, the outer surface of the first fixed shaft is fixedly connected with a connecting plate, the end of the connecting plate away from the first fixed shaft is fixedly connected with a water outlet ring, the interior of the water return cylinder is provided with a mixing device for mixing circulating water and medicine, the interior of the water return cylinder is provided with an adsorption device for adsorbing impurities separated from the circulating water, a motor is installed at the front end of the rotating shaft, and the motor is fixedly connected to the front side of the water return cylinder, the outer surface of the water outlet ring is in sliding contact with the inner wall of the water return cylinder, and the circulating water The rear end of the pipe and the filter cartridge is fixedly connected, and a water outlet is provided on the surface of the water outlet ring. The water to be filtered is added to the return water cartridge through the water inlet pipe, and the water enters the reverse osmosis filter element in the filter cartridge from the circulating water pipe. After the reverse osmosis filter element filters the water, the water outlet pipe is opened, and the filtered water flows out from the water outlet pipe to complete the filtration. After the reverse osmosis filter element has been used for a long time, a large amount of impurities are stuck in the filter holes in the reverse osmosis filter element, affecting the filtering effect of the reverse osmosis filter element. At this time, cleaning water is added to the return water cartridge through the water inlet pipe, and the cleaning water enters the filter cartridge through the circulating water pipe to rinse the reverse osmosis filter element, and then the water pump is turned on, and the water pump will clean the filter element. After the cleaning water of the reverse osmosis filter element is sucked into the water pipe, it is then transported to the return water cylinder through the water pipe. At this time, the chemical is added into the return water cylinder through the chemical dosing pipe and mixed with the cleaning water. The motor is started, and the motor drives the first fixed shaft to rotate, and the first fixed shaft drives the connecting plate to rotate, and the connecting plate drives the water outlet ring to rotate. When the water outlet opened on the water outlet ring is rotated to align with the circulating water pipe, the cleaning water can enter the filter cylinder through the circulating water pipe. When the water outlet leaves the circulating water pipe, the circulating water pipe is blocked by the water outlet ring, and the cleaning water cannot enter the filter cylinder from the circulating water pipe. When the cleaning water stays in the return water cylinder, it can be fully mixed with the chemical.

[0007] Preferably, the mixing device includes a second fixed shaft, a stirring plate, and a cleaning brush, the second fixed shaft is fixedly connected to the outer surface of the rotating shaft, the stirring plate is fixedly connected to the outer surface of the second fixed shaft, and the cleaning brush is arranged inside the water return cylinder, the mixing device also includes an annular slide rail, a third fixed shaft, a connecting rod, a collar, a rolling rod, and a roller, the annular slide rail is fixedly connected to the front and rear ends of the inner wall of the water return cylinder, the third fixed shaft is fixedly connected to the front and rear ends of the outer surface of the rotating shaft, the connecting rod is fixedly connected to the outer surface of the third fixed shaft, the collar is fixedly connected to an end of the connecting rod away from the third fixed shaft, the rolling rod is sleeved on the inner surface of the collar, the roller is rotatably connected to the front and rear ends of the rolling rod, and the roller is slidably connected to the inner surface of the annular slide rail The rotation of the rotating shaft drives the second fixed shaft to rotate, and the second fixed shaft drives the stirring plate to rotate. The stirring plate stirs the cleaning water in the return water cylinder, and the cleaning brush can clean the inner wall of the return water cylinder. The rotation of the rotating shaft drives the third fixed shaft to rotate, and the third fixed shaft drives the connecting rod to rotate, the connecting rod drives the ring to rotate circumferentially, the ring drives the rolling rod to rotate circumferentially, and the rolling rod drives the roller to rotate circumferentially. When the roller rotates circumferentially, it slides along the annular slide rail. The friction force generated when the roller slides on the annular slide rail makes the roller itself rotate, and the roller drives the rolling rod itself to rotate. The rolling rod drives the cleaning brush to rotate, and the cleaning brush rubs against the inner wall of the return water cylinder when it rotates.

[0008] Preferably, the adsorption device includes a material changing pipe, a twisting cover, a moving shaft, a first half shell and a second half shell, the material changing pipe is fixedly connected to the upper surface of the return water cylinder, the twisting cover is threadedly connected to the inner surface of the material changing pipe, the moving shaft is movably connected to the outer surface of the rotating shaft, the first half shell is fixedly connected to the outer surface of the moving shaft, and the second half shell is movably connected to the outer surface of the moving shaft, the adsorption device also includes a clamping plate, a transmission rod, a clamping plate, and a clamping shaft, the clamping plate is fixedly connected to the upper and lower ends of the first half shell, the transmission rod is fixedly connected to the side of the stirring plate, the clamping plate is fixedly connected to the inner surface of the first half shell, the clamping shaft is fixedly connected to the side of the clamping plate on the first half shell close to the second half shell, a reciprocating spiral groove is opened in the middle of the outer surface of the rotating shaft, the clamping plate and the second half shell are fixedly connected at the upper and lower ends, and the clamping plate and the inner surface of the second half shell are fixedly connected The clamping shaft is clamped with the clamping plate on the second half shell, and mesh holes are provided on the surfaces of the first half shell and the second half shell. The twisting cover is rotated to separate the twisting cover from the material changing pipe, and the second half shell can be taken out from the return water drum. After the second half shell is taken out, flocculant is added into the second half shell and the first half shell, and then the second half shell and the first half shell are merged and the twisting cover is closed. At this time, the motor drives the rotating shaft to rotate, and the reciprocating thread groove provided on the rotating shaft drives the moving shaft to move back and forth, and the moving shaft drives the first half shell and the second half shell. The flocculant in the first half shell and the second half shell moves in the return water drum to adsorb impurities separated from the clean water, and the rotation of the stirring plate drives the transmission rod to rotate in a circle, and the transmission rod drives the clamping plate to rotate in a circle, and the clamping plate drives the first half shell and the second half shell to rotate, so that the flocculant inside the first half shell and the second half shell rolls.

[0009] The present invention adopts the above technical solution to bring the following beneficial effects:

[0010] 1. In the internal circulation reverse osmosis component, the water pump conveys the cleaning water to the return water drum through the water delivery pipe, and the chemical is added into the return water drum through the chemical adding pipe to mix with the cleaning water, so that the cleaning water and impurities are separated, so that the cleaning water can continuously clean the reverse osmosis filter element in the filter cartridge. When the water outlet leaves the circulating water pipe, the circulating water pipe is blocked by the water outlet ring, and the cleaning water cannot enter the filter cartridge from the circulating water pipe. When the cleaning water stays in the return water drum, it can be fully mixed with the chemical, thereby avoiding the cleaning water with a large amount of impurities from contacting the reverse osmosis filter element again, thereby improving the effect of circulating filtration.

[0011] 2. The reverse osmosis component with internal circulation, the stirring plate stirs the cleaning water in the return water drum, so that the cleaning water and the reagent are mixed more quickly and evenly, and the cleaning brush can clean the inner wall of the return water drum to prevent impurities from adhering to the inner wall of the return water drum and prevent the return water drum from being blocked. When the cleaning brush rotates, it rubs against the inner wall of the return water drum, which improves the cleaning efficiency of the cleaning brush and further prevents the return water drum from being blocked, thereby improving the efficiency of the circulation filtration.

[0012] 3. In the reverse osmosis component with internal circulation, the flocculants in the first half shell and the second half shell adsorb the impurities separated from the clean water when moving in the return water drum, so that the separated impurities quickly leave the clean water, which is convenient for circulating cleaning during cleaning. The flocculants in the first half shell and the second half shell roll over, so that the flocculants will not accumulate together, resulting in some flocculants being unable to adsorb impurities in the first time, thereby improving the adsorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the present invention;

[0015] Figure 3 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the circulation structure of the present invention;

[0016] Figure 4 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the mixing device of the present invention;

[0017] Figure 5 For the present invention Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 6 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the adsorption device of the present invention;

[0019] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of B;

[0020] Figure 8 It is a schematic diagram of the side cross-sectional three-dimensional structure of a partial structure of the adsorption device of the present invention.

[0021] In the figure: 1. filter cartridge; 2. water outlet pipe; 3. reverse osmosis filter element; 4. fixing frame; 5. water pump; 6. water delivery pipe; 7. return water cylinder; 71. dosing pipe; 72. water inlet pipe; 73. circulating water pipe; 74. rotating shaft; 75. first fixed shaft; 76. connecting plate; 77. water outlet ring; 8. mixing device; 81. second fixed shaft; 82. stirring plate; 83. cleaning brush; 84. annular slide rail; 85. third fixed shaft; 86. connecting rod; 87. sleeve; 88. rolling rod; 89. roller; 9. adsorption device; 91. material change pipe; 92. twisting cover; 93. moving shaft; 94. first half shell; 95. second half shell; 96. splint; 97. transmission rod; 98. clamping plate; 99. clamping shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 8 , one embodiment of the present invention is: a reverse osmosis component with internal circulation, comprising a filter cartridge 1, a water outlet pipe 2 is fixedly connected to the lower surface of the filter cartridge 1, a fixing frame 4 is fixedly connected to the inner wall of the filter cartridge 1, a reverse osmosis filter element 3 is fixedly connected to the inner surface of the fixing frame 4, a water pump 5 is fixedly connected to the front end of the filter cartridge 1, a water delivery pipe 6 is fixedly connected to the upper part of the water pump 5, a return water cartridge 7 is fixedly connected to the rear bottom end of the water delivery pipe 6, a dosing pipe 71 is fixedly connected to the upper surface of the return water cartridge 7, a water inlet pipe 72 is fixedly connected to the upper surface of the return water cartridge 7, a circulating water pipe 73 is fixedly connected to the lower surface of the return water cartridge 7, a rotating shaft 74 is rotatably connected to the front and rear ends of the return water cartridge 7, a first fixed shaft 75 is fixedly connected to the outer surface of the rotating shaft 74, a connecting plate 76 is fixedly connected to the outer surface of the first fixed shaft 75, a water outlet ring 77 is fixedly connected to the end of the connecting plate 76 away from the first fixed shaft 75, the water pump 5 delivers cleaning water to the return water cartridge 7 through the water delivery pipe 6, and by adding The medicine tube 71 adds the medicine into the return water cylinder 7 and mixes it with the cleaning water to separate the cleaning water and impurities, so that the cleaning water can continuously clean the reverse osmosis filter element 3 in the filter cartridge 1. The interior of the return water cylinder 7 is provided with a mixing device 8 for mixing the circulating water and the medicine. The interior of the return water cylinder 7 is provided with an adsorption device 9 for adsorbing the impurities separated in the circulating water. A motor is installed at the front end of the rotating shaft 74, and the motor is fixedly connected to the front side of the return water cylinder 7. The outer surface of the water outlet ring 77 is in sliding contact with the inner wall of the return water cylinder 7. The circulating water pipe 73 is fixedly connected to the rear end of the filter cartridge 1. A water outlet is provided on the surface of the water outlet ring 77. When the water outlet leaves the circulating water pipe 73, the circulating water pipe 73 is blocked by the water outlet ring 77, and the cleaning water cannot enter the filter cartridge 1 from the circulating water pipe 73. When the cleaning water stays in the return water cylinder 7, it can be fully mixed with the medicine, thereby avoiding the cleaning water carrying a large amount of impurities from contacting the reverse osmosis filter element 3 again, thereby improving the effect of circulating filtration.

[0024] Working principle: the water to be filtered is added into the water return drum 7 through the water inlet pipe 72, the water enters the reverse osmosis filter element 3 in the filter drum 1 from the circulating water pipe 73, the reverse osmosis filter element 3 filters the water and then opens the water outlet pipe 2, the filtered water flows out from the water outlet pipe 2 to complete the filtration, when the reverse osmosis filter element 3 has been used for a long time, a large amount of impurities are stuck in the filter holes in the reverse osmosis filter element 3, affecting the filtration effect of the reverse osmosis filter element 3, at this time, the cleaning water is added into the water return drum 7 through the water inlet pipe 72, the cleaning water enters the filter drum 1 through the circulating water pipe 73 to rinse the reverse osmosis filter element 3, and then the water pump 5 is turned on, the water pump 5 sucks the cleaning water that has cleaned the reverse osmosis filter element 3 into the water delivery pipe 6, and then transports it to the water return drum 7 through the water delivery pipe 6, at this time, the medicine is added into the water return drum 7 through the medicine adding pipe 71 to mix with the cleaning agent The washing water is mixed to separate the washing water and impurities, so that the washing water can continuously clean the reverse osmosis filter element 3 in the filter cartridge 1, and the motor is started. The motor drives the first fixed shaft 75 to rotate, and the first fixed shaft 75 drives the connecting plate 76 to rotate, and the connecting plate 76 drives the water outlet ring 77 to rotate. When the water outlet opened on the water outlet ring 77 is rotated to align with the circulating water pipe 73, the washing water can enter the filter cartridge 1 through the circulating water pipe 73. When the water outlet leaves the circulating water pipe 73, the circulating water pipe 73 is blocked by the water outlet ring 77, and the washing water cannot enter the filter cartridge 1 from the circulating water pipe 73. When the washing water stays in the return water cylinder 7, it can be fully mixed with the reagent, thereby avoiding the washing water carrying a large amount of impurities from contacting the reverse osmosis filter element 3 again, thereby improving the effect of circulating filtration.

[0025] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the mixing device 8 includes a second fixed shaft 81, a stirring plate 82, and a cleaning brush 83. The second fixed shaft 81 is fixedly connected to the outer surface of the rotating shaft 74, the stirring plate 82 is fixedly connected to the outer surface of the second fixed shaft 81, and the cleaning brush 83 is arranged inside the return water cylinder 7. The stirring plate 82 stirs the cleaning water in the return water cylinder 7 so that the cleaning water and the agent are mixed more quickly and evenly, and the cleaning brush 83 can clean the inner wall of the return water cylinder 7 to prevent impurities from adhering to the inner wall of the return water cylinder 7 and prevent the return water cylinder 7 from being blocked. The mixing device 8 also includes an annular slide rail 84, a third fixed shaft 85, a connecting rod 86, a collar 87, a rolling rod 88, and a roller 89. The annular slide rail 84 is fixedly connected to the front and rear ends of the inner wall of the return water cylinder 7, the third fixed shaft 85 is fixedly connected to the front and rear ends of the outer surface of the rotating shaft 74, the connecting rod 86 is fixedly connected to the outer surface of the third fixed shaft 85, the ring 87 is fixedly connected to the end of the connecting rod 86 away from the third fixed shaft 85, the rolling rod 88 is sleeved on the inner surface of the ring 87, the roller 89 is rotatably connected to the front and rear ends of the rolling rod 88, the roller 89 and the inner surface of the annular slide rail 84 are slidably connected, the rolling rod 88 rotates and penetrates the inner surface of the connecting plate 76, the cleaning brush 83 is fixedly connected to the outer surface of the rolling rod 88, and the cleaning brush 83 rubs against the inner wall of the return water cylinder 7 when rotating, thereby improving the cleaning efficiency of the cleaning brush 83, further preventing the return water cylinder 7 from being blocked, thereby improving the efficiency of the circulating filtration.

[0026] Working principle: The rotation of the rotating shaft 74 drives the second fixed shaft 81 to rotate, and the second fixed shaft 81 drives the stirring plate 82 to rotate. The stirring plate 82 stirs the cleaning water in the return water cylinder 7 to make the cleaning water and the agent mix more quickly and evenly, and the cleaning brush 83 can clean the inner wall of the return water cylinder 7 to prevent impurities from adhering to the inner wall of the return water cylinder 7 and prevent the return water cylinder 7 from being blocked. The rotation of the rotating shaft 74 drives the third fixed shaft 85 to rotate, and the third fixed shaft 85 drives the connecting rod 86 to rotate, and the connecting rod 86 drives the collar 87 to rotate in a circle, and the collar 87 drives the rolling rod 88 to rotate in a circle, and the rolling rod 88 drives the roller 89 to rotate in a circle. When the roller 89 rotates in a circle, it slides along the annular slide rail 84. The friction force generated when the roller 89 slides on the annular slide rail 84 causes the roller 89 to rotate itself. The roller 89 then drives the rolling rod 88 to rotate itself. The rolling rod 88 drives the cleaning brush 83 to rotate. When the cleaning brush 83 rotates, it rubs against the inner wall of the return water cylinder 7, thereby improving the cleaning efficiency of the cleaning brush 83, further preventing the return water cylinder 7 from being blocked, and thus improving the efficiency of the circulating filtration.

[0027] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the adsorption device 9 includes a material exchange pipe 91, a twisting cover 92, a moving shaft 93, a first half shell 94, and a second half shell 95. The material exchange pipe 91 is fixedly connected to the upper surface of the return water cylinder 7, the twisting cover 92 is threadedly connected to the inner surface of the material exchange pipe 91, the moving shaft 93 is movably connected to the outer surface of the rotating shaft 74, the first half shell 94 is fixedly connected to the outer surface of the moving shaft 93, and the second half shell 95 is movably connected to the outer surface of the moving shaft 93. When the flocculants in the first half shell 94 and the second half shell 95 move in the return water cylinder 7, they adsorb the impurities separated from the clean water, thereby allowing the separated impurities to quickly leave the clean water, which is convenient for circulating cleaning during cleaning. The adsorption device 9 also includes a clamping plate 96, a transmission rod 97, a card plate 98, and a card shaft 99 The clamping plate 96 is fixedly connected to the upper and lower ends of the first half shell 94, the transmission rod 97 is fixedly connected to the side of the stirring plate 82, the card plate 98 is fixedly connected to the inner surface of the first half shell 94, and the card shaft 99 is fixedly connected to the card plate 98 on the first half shell 94 close to the side of the second half shell 95. A reciprocating spiral groove is provided in the middle of the outer surface of the rotating shaft 74, the clamping plate 96 is fixedly connected to the upper and lower ends of the second half shell 95, the card plate 98 is fixedly connected to the inner surface of the second half shell 95, the card shaft 99 and the card plate 98 on the second half shell 95 are clamped, and the surfaces of the first half shell 94 and the second half shell 95 are provided with mesh holes, and the flocculants inside the first half shell 94 and the second half shell 95 roll, so that the flocculants will not accumulate together, resulting in some flocculants being unable to adsorb impurities in the first time, thereby improving the adsorption efficiency.

[0028] Working principle: Turn the twisting cover 92 to separate the twisting cover 92 from the material exchange pipe 91, and then the second half shell 95 can be taken out from the return water cylinder 7. After the second half shell 95 is taken out, add flocculant into the second half shell 95 and the first half shell 94, then merge the second half shell 95 and the first half shell 94, and then close the twisting cover 92. At this time, the motor drives the rotating shaft 74 to rotate, and the reciprocating thread groove on the rotating shaft 74 drives the moving shaft 93 to move back and forth, and the moving shaft 93 drives the first half shell 94 and the second half shell 95. The first half shell 94 and the second half shell 95 are moved back and forth. When the flocculant in the water return tube 7 moves, it adsorbs the impurities separated from the clean water, so that the separated impurities quickly leave the clean water, which is convenient for cyclic cleaning during cleaning. The rotation of the stirring plate 82 drives the transmission rod 97 to rotate in a circle, and the transmission rod 97 drives the clamping plate 96 to rotate in a circle. The clamping plate 96 drives the first half shell 94 and the second half shell 95 to rotate, so that the flocculants inside the first half shell 94 and the second half shell 95 roll over, so that the flocculants will not accumulate together, resulting in part of the flocculants being unable to adsorb the impurities in the first time, thereby improving the adsorption efficiency.

[0029] The present invention provides a reverse osmosis assembly with internal circulation. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A reverse osmosis assembly with internal circulation, comprising a filter cartridge (1), characterized in that: The lower surface of the filter cartridge (1) is fixedly connected to a water outlet pipe (2), the inner wall of the filter cartridge (1) is fixedly connected to a fixing frame (4), the inner surface of the fixing frame (4) is fixedly connected to a reverse osmosis filter element (3), the front end of the filter cartridge (1) is fixedly connected to a water pump (5), the upper part of the water pump (5) is fixedly connected to a water delivery pipe (6), the rear bottom end of the water delivery pipe (6) is fixedly connected to a water return cartridge (7), and the upper surface of the water return cartridge (7) is fixedly connected to a dosing pipe (71), The upper surface of the water return cylinder (7) is fixedly connected to a water inlet pipe (72), the lower surface of the water return cylinder (7) is fixedly connected to a circulating water pipe (73), the front and rear ends of the water return cylinder (7) are rotatably connected to a rotating shaft (74), the outer surface of the rotating shaft (74) is fixedly connected to a first fixed shaft (75), the outer surface of the first fixed shaft (75) is fixedly connected to a connecting plate (76), and one end of the connecting plate (76) away from the first fixed shaft (75) is fixedly connected to a water outlet ring (77); The water return cylinder (7) is provided with a mixing device (8) for mixing circulating water and a reagent, and the water return cylinder (7) is provided with an adsorption device (9) for adsorbing impurities separated from the circulating water; The mixing device (8) comprises a second fixed shaft (81), a stirring plate (82), and a cleaning brush (83); the second fixed shaft (81) is fixedly connected to the outer surface of the rotating shaft (74); the stirring plate (82) is fixedly connected to the outer surface of the second fixed shaft (81); and the cleaning brush (83) is arranged inside the water return drum (7); The mixing device (8) further comprises an annular slide rail (84), a third fixed shaft (85), a connecting rod (86), a collar (87), a rolling rod (88), and a roller (89); the annular slide rail (84) is fixedly connected to the front and rear ends of the inner wall of the water return cylinder (7); the third fixed shaft (85) is fixedly connected to the front and rear ends of the outer surface of the rotating shaft (74); the connecting rod (86) is fixedly connected to the outer surface of the third fixed shaft (85); the collar (87) is fixedly connected to one end of the connecting rod (86) away from the third fixed shaft (85); the rolling rod (88) is sleeved on the inner surface of the collar (87); and the roller (89) is rotatably connected to the front and rear ends of the rolling rod (88); The adsorption device (9) comprises a material changing pipe (91), a twisting cover (92), a moving shaft (93), a first half shell (94), and a second half shell (95); the material changing pipe (91) is fixedly connected to the upper surface of the water return cylinder (7); the twisting cover (92) is threadedly connected to the inner surface of the material changing pipe (91); the moving shaft (93) is movably connected to the outer surface of the rotating shaft (74); the first half shell (94) is fixedly connected to the outer surface of the moving shaft (93); and the second half shell (95) is movably connected to the outer surface of the moving shaft (93); The adsorption device (9) also includes a clamping plate (96), a transmission rod (97), a clamping plate (98), and a clamping shaft (99); the clamping plate (96) is fixedly connected to the upper and lower ends of the first half shell (94); the transmission rod (97) is fixedly connected to the side of the stirring plate (82); the clamping plate (98) is fixedly connected to the inner surface of the first half shell (94); and the clamping shaft (99) is fixedly connected to the clamping plate (98) on the first half shell (94) on a side close to the second half shell (95).

2. The reverse osmosis assembly with internal circulation according to claim 1, characterized in that: A motor is installed at the front end of the rotating shaft (74), and the motor is fixedly connected to the front side of the water return cylinder (7). The outer surface of the water outlet ring (77) is in sliding contact with the inner wall of the water return cylinder (7). The circulating water pipe (73) is fixedly connected to the rear end of the filter cylinder (1), and a water outlet is provided on the surface of the water outlet ring (77).

3. The reverse osmosis assembly with internal circulation according to claim 2, characterized in that: The roller (89) is slidably connected to the inner surface of the annular slide rail (84), the rolling rod (88) rotates and penetrates the inner surface of the connecting plate (76), and the cleaning brush (83) is fixedly connected to the outer surface of the rolling rod (88).

4. The reverse osmosis assembly with internal circulation according to claim 3, characterized in that: A reciprocating spiral groove is provided in the middle of the outer surface of the rotating shaft (74); the clamping plate (96) is fixedly connected to the upper and lower ends of the second half shell (95); the clamping plate (98) is fixedly connected to the inner surface of the second half shell (95); the clamping shaft (99) is clamped to the clamping plate (98) on the second half shell (95); and mesh holes are provided on the surfaces of the first half shell (94) and the second half shell (95).

Images