Multistage reverse osmosis device

Abstract

According to the multi-stage reverse osmosis device, a multi-stage filtering structure is arranged before entering a reverse osmosis filtering chamber, so that the content of impurities entering the reverse osmosis filtering chamber is reduced, a reverse osmosis membrane can exert a good filtering effect for a long time, and the height of a movable rotating shaft can be changed through an adjusting mechanism; the reverse osmosis membrane can be tensioned under the downward moving action of the movable rotating shaft, the situation that the reverse osmosis membrane is wrinkled, impurities are accumulated, and the reverse osmosis treatment effect of the reverse osmosis membrane is affected is avoided, the reverse osmosis membrane can move under the action of the adjusting mechanism, and the movable rotating shaft cleans the reverse osmosis membrane in the moving process.

Description

Technical Field

[0001] The utility model relates to the technical field of pure water preparation, in particular to a multi-stage reverse osmosis device. Background Art

[0002] Ultrapure water contains almost no impurities except water molecules. The impurities here include not only bad impurities such as bacteria and viruses, but also mineral trace elements needed by the human body. In the preparation of ultrapure water, pretreatment filtration is the most basic step. The effect of pretreatment filtration directly affects the subsequent production efficiency, and the application of reverse osmosis technology in pretreatment filtration is indispensable.

[0003] Reverse osmosis uses the separation effect of reverse osmosis membrane to achieve filtration and separation functions. Its operating cost is high, and it is not convenient to clean itself. Dirt and impurities in the water are easy to adhere to the reverse osmosis membrane, which will affect the effect of the reverse osmosis membrane in the long run. Therefore, multi-stage filtration treatment is required before the water reaches the reverse osmosis membrane to reduce the impact of impurities on the reverse osmosis membrane. Impurities are easily accumulated when the reverse osmosis membrane is wrinkled. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses a multi-stage reverse osmosis device, which adopts the technical scheme of comprising a bottom plate, a reverse osmosis filter chamber, a multi-stage filter chamber, a top cover plate, a water inlet, a front sealing plate, a right sealing plate, a water outlet, a coarse filter plate, a coarse filter hole, a mounting rail, a multi-stage filtering structure, a collecting lower leakage port, a convex plate, a guide shaft, a movable rotating shaft, a reverse osmosis membrane and an adjusting mechanism. The bottom plate is sequentially fixed with a reverse osmosis filter chamber and a multi-stage filter chamber, the top of the multi-stage filter chamber is provided with a detachable top cover plate, a water inlet is arranged on the top cover plate, water is first filtered through the multi-stage filtering structure arranged in the multi-stage filter chamber and then enters the reverse osmosis chamber for treatment, windows are provided on the front side and the right side of the multi-stage filter chamber, which are respectively closed by the front sealing plate and the right sealing plate, after a period of use, the front sealing plate and the right sealing plate can be disassembled to clean the multi-stage filter chamber, a water outlet is arranged at the bottom right side of the reverse osmosis filter chamber, a valve is arranged at the water outlet, and the multi-stage filter chamber is provided with a valve. A coarse filter plate is fixed at the upper part, on which coarse filter holes are distributed. A mounting rail is fixed to the inner wall of the multi-stage filter chamber below it, and the multi-stage filtration structure is installed through the mounting rail. A collecting lower leak port is opened at the bottom of the multi-stage filter chamber, which is connected with the reverse osmosis filter chamber through the collecting lower leak port. Guide shafts are fixed on the left and right sides of the reverse osmosis filter chamber respectively, and a movable shaft is installed in the middle part through an adjusting mechanism arranged on the inner wall of the reverse osmosis filter chamber. The reverse osmosis membrane is wound around the guide shaft and the movable shaft. A convex plate is integrally formed on the top surface of the inner part of the reverse osmosis filter chamber, and the lower surface of the convex plate contacts the reverse osmosis membrane. The front and rear sides of the reverse osmosis membrane are also in close contact with the inner wall of the reverse osmosis filter chamber. Small cleaning brushes are distributed on the surface of the movable shaft. When the movable shaft rotates under the action of the adjusting mechanism, the reverse osmosis membrane can be cleaned and the reverse osmosis membrane in the horizontal part can be replaced. The adjusting mechanism can also drive the movable shaft to move downward to achieve tensioning of the reverse osmosis membrane to avoid accumulation of impurities when wrinkles appear, affecting the treatment efficiency.

[0005] As a preferred technical solution of the utility model, the multi-stage filtration structure includes a fine filter plate, fine filter holes, a PP cotton filter element and an activated carbon filter plate. A number of fine filter holes are distributed on the fine filter plate. Two layers of mounting frames are connected below the fine filter plate. The PP cotton filter element and the activated carbon filter plate are respectively installed in the mounting frames from top to bottom.

[0006] As a preferred technical solution of the utility model, a rubber pad is fixed to the lower surface of the convex plate, and the rubber pad is in contact with the reverse osmosis membrane.

[0007] As a preferred technical solution of the utility model, the inner side of the guide shaft has a protruding portion with a rectangular cross-section, the position of the protruding portion corresponds to the convex plate, and its upper surface contacts the lower surface of the reverse osmosis membrane, that is, the reverse osmosis membrane passes through the gap between the convex plate and the protruding portion, and is more stable when it moves under the action of the movable rotating shaft.

[0008] As an optimal technical solution of the utility model, the adjustment mechanism includes a side wall groove, a rotating stud, a mounting box, a matching screw hole, an internal mounting chamber, a battery, a remote receiving controller, a motor and an output shaft. Side wall grooves are opened on the front and rear side walls inside the reverse osmosis filter chamber, a shaft body is fixed in the side wall groove on the front side, and a rotating stud is rotatably installed in the side wall groove on the rear side. The mounting box has two, one is movably fitted with the shaft body, and the other is installed in cooperation with the rotating stud through the matching screw hole opened thereon. The rotating stud is driven by a stepper motor built into the base plate, and the stepper motor is used with an external power supply. A movable rotating shaft is rotatably installed between the front and rear mounting boxes. The rear mounting box has an internal mounting chamber, in which a battery, a remote receiving controller and a motor are installed. The motor can realize remote control, and the output shaft of the motor is fixedly connected to the movable rotating shaft to drive it. After the motor is started, the movable rotating shaft can be driven to rotate through the output shaft.

[0009] The beneficial effects of the utility model are as follows: by arranging a multi-stage filtering structure before entering the reverse osmosis filter chamber, the impurity content entering the reverse osmosis filter chamber is reduced, so that the reverse osmosis membrane can exert a good filtering effect for a long time, and the height of the movable shaft can be changed through the adjustment mechanism. Under the downward movement of the movable shaft, the reverse osmosis membrane can be tensioned to avoid wrinkles and accumulation of impurities that affect its reverse osmosis treatment effect, and the reverse osmosis membrane can move under the action of the adjustment mechanism, and the movable shaft cleans it during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0012] Figure 3 It is a schematic diagram of the internal structure of the rear installation box of the utility model.

[0013] In the figure: bottom plate 1, reverse osmosis filter chamber 2, multi-stage filter chamber 3, top cover plate 4, water inlet 5, front side sealing plate 6, right side sealing plate 7, water outlet 8, coarse filter plate 9, coarse filter hole 10, mounting rail 11, fine filter plate 12, fine filter hole 13, PP cotton filter element 14, activated carbon filter plate 15, collecting lower leakage port 16, convex plate 17, guide shaft 18, movable shaft 19, reverse osmosis membrane 20, side wall groove 21, rotating stud 22, installation box 191, mounting screw hole 192, internal installation chamber 193, battery 194, remote receiving controller 195, motor 196, output shaft 197. DETAILED DESCRIPTION

[0014] Example 1

[0015] like Figures 1 to 3As shown, the utility model discloses a multi-stage reverse osmosis device, and the technical scheme adopted is that it includes a bottom plate 1, a reverse osmosis filter chamber 2, a multi-stage filter chamber 3, a top cover plate 4, a water inlet 5, a front side sealing plate 6, a right side sealing plate 7, a water outlet 8, a coarse filter plate 9, a coarse filter hole 10, a mounting rail 11, a multi-stage filtering structure, a collecting lower leakage port 16, a convex plate 17, a guide shaft 18, a movable rotating shaft 19, a reverse osmosis membrane 20 and an adjusting mechanism. The bottom plate 1 is fixed with the reverse osmosis filter chamber 2 and the multi-stage filter chamber 3 in sequence, the top of the multi-stage filter chamber 3 is provided with a detachable top cover plate 4, the top cover plate 4 is provided with a water inlet 5, the front side and the right side of the multi-stage filter chamber 3 are provided with windows, which are respectively closed by the front side sealing plate 6 and the right side sealing plate 7, and the right bottom of the reverse osmosis filter chamber 2 is provided with a water outlet. 8. A valve is provided at the water outlet 8. A coarse filter plate 9 is fixed at the upper part of the multi-stage filter chamber 3, on which coarse filter holes 10 are distributed. A mounting rail 11 is fixed to the inner wall of the multi-stage filter chamber 3 below the coarse filter plate 9. The multi-stage filtration structure is installed through the mounting rail 11. A collecting lower leak port 16 is provided at the bottom of the multi-stage filter chamber 3, which is connected with the reverse osmosis filter chamber 2 through the collecting lower leak port 16. Guide shafts 18 are respectively fixed on the left and right sides of the reverse osmosis filter chamber 2. A movable rotating shaft 19 is installed in the middle through an adjusting mechanism provided on the inner wall of the reverse osmosis filter chamber 2. The reverse osmosis membrane 20 is wound around the guide shaft 18 and the movable rotating shaft 19. A convex plate 17 is integrally formed on the top surface of the reverse osmosis filter chamber 2. The lower surface of the convex plate 17 contacts the reverse osmosis membrane 20. A fine cleaning brush is distributed on the surface of the movable rotating shaft 19.

[0016] As a preferred technical solution of the utility model, in order to avoid excessive impurities at the reverse osmosis membrane that may cause the reverse osmosis membrane to be easily blocked or affect its normal use, a multi-stage filtration structure is set to pre-treat the water before the water reaches the reverse osmosis membrane. Its specific structure is to set a fine filter plate 12, and a plurality of fine filter holes 13 are distributed on the fine filter plate 12. Two layers of installation frames are connected below the fine filter plate 12. PP cotton filter elements 14 and activated carbon filter plates 15 are respectively installed in the installation frames from top to bottom. The entire multi-stage filtration structure is installed through the installation rail 11.

[0017] As a preferred technical solution of the utility model, a rubber pad is fixed on the lower surface of the convex plate 17 , and a plurality of micro brushes are distributed on the lower surface of the rubber pad, and the rubber pad is in contact with the reverse osmosis membrane 20 .

[0018] As a preferred technical solution of the utility model, the inner side of the guide shaft 18 has a protruding portion with a rectangular cross-section, the position of the protruding portion corresponds to the convex plate 17, and its upper surface contacts the lower surface of the reverse osmosis membrane 20, so that the surface of the reverse osmosis membrane can be cleaned when it passes between the two.

[0019] As a preferred technical solution of the utility model, in order to avoid wrinkles on the reverse osmosis membrane and facilitate its cleaning, an adjustment mechanism is provided. Specifically, side wall grooves 21 are opened on the front and rear side walls inside the reverse osmosis filter chamber 2, the shaft body is fixed in the front side side wall groove 21, and the rotating stud 22 is rotatably installed in the rear side wall groove 21. The installation box 191 has two, one is movably mounted with the shaft body, and the other is installed in cooperation with the rotating stud 22 through the mounting screw hole 192 opened thereon, and the movable rotating shaft 19 is rotatably installed between the front and rear installation boxes 191, and the rear installation box 191 has an internal installation chamber 193 inside, in which a battery 194, a remote receiving controller 195 and a motor 196 are installed, and the output shaft 197 of the motor 196 is fixedly connected to the movable rotating shaft 19 to drive it.

[0020] The working principle of the utility model is as follows: when in use, the water inlet 5 of the well cover enters the multi-stage filter chamber 3, passes through the coarse filter plate 9, the fine filter plate 12, the PP cotton filter element 14 and the activated carbon filter plate 15 in turn, and then enters the reverse osmosis filter chamber 2 through the collecting lower leakage port 16, thereby reducing the impurity content entering the reverse osmosis filter chamber, so that the reverse osmosis membrane can play a good filtering effect for a long time. In order to avoid wrinkles on the reverse osmosis membrane 20 that affect its effect, the installation box 191 moves downward with the movable shaft 19 when the motor in the bottom plate 1 is started to drive the rotating stud 22 to rotate, so as to tighten the reverse osmosis membrane. When the remote control starting motor 196 can drive the movable shaft 19 to rotate, the reverse osmosis membrane 20 is moved, and its surface can be scraped when it passes through the area between the convex plate 17 and the protruding part of the guide shaft 18, and the fine cleaning brush on the movable shaft 19 can clean the inner side of the reverse osmosis membrane 20.

[0021] Components not described in detail herein are prior art.

[0022] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A multi-stage reverse osmosis device, Features: The invention comprises a bottom plate (1), a reverse osmosis filter chamber (2), a multi-stage filter chamber (3), a top cover plate (4), a water inlet (5), a front side sealing plate (6), a right side sealing plate (7), a water outlet (8), a coarse filter plate (9), a coarse filter hole (10), a mounting rail (11), a multi-stage filtering structure, a collecting lower leakage port (16), a convex plate (17), a guide shaft (18), a movable rotating shaft (19), a reverse osmosis membrane (20) and an adjusting mechanism; the reverse osmosis filter chamber (2) and the multi-stage filter chamber (3) are fixed on the bottom plate (1) in sequence; the top of the multi-stage filter chamber (3) is provided with a detachable top cover plate (4), and the top cover plate (4) is provided with a water inlet (5); the front side and the right side of the multi-stage filter chamber (3) are provided with windows, which are respectively closed by the front side sealing plate (6) and the right side sealing plate (7); the bottom right side of the reverse osmosis filter chamber (2) is provided with a water outlet (8); the multi-stage filter A coarse filter plate (9) is fixed at the upper part of the chamber (3), on which coarse filter holes (10) are distributed, and a mounting rail (11) is fixed on the inner wall of the multi-stage filter chamber (3) located below the coarse filter plate (9); the multi-stage filter structure is installed through the mounting rail (11); a collecting lower leakage port (16) is opened at the bottom of the multi-stage filter chamber (3), and the multi-stage filter chamber (2) is connected to the reverse osmosis filter chamber (2) through the collecting lower leakage port (16); guide shafts (18) are fixed on the left and right sides of the reverse osmosis filter chamber (2), and a movable rotating shaft (19) is installed in the middle through an adjustment mechanism arranged on the inner wall of the reverse osmosis filter chamber (2); the reverse osmosis membrane (20) is wound through the guide shaft (18) and the movable rotating shaft (19); a convex plate (17) is integrally formed on the top surface of the reverse osmosis filter chamber (2), and the lower surface of the convex plate (17) contacts the reverse osmosis membrane (20); and a fine cleaning brush is distributed on the surface of the movable rotating shaft (19).

2. A multi-stage reverse osmosis device according to claim 1, Features: The water outlet (8) is provided with a valve.

3. A multi-stage reverse osmosis device according to claim 1, Features: The multi-stage filtering structure comprises a fine filter plate (12), fine filter holes (13), a PP cotton filter element (14) and an activated carbon filter plate (15); a plurality of fine filter holes (13) are distributed on the fine filter plate (12); two layers of mounting frames are connected below the fine filter plate (12), and the PP cotton filter element (14) and the activated carbon filter plate (15) are respectively mounted in the mounting frames from top to bottom.

4. A multi-stage reverse osmosis device according to claim 1, Features: A rubber pad is fixed to the lower surface of the convex plate (17), and the rubber pad is in contact with the reverse osmosis membrane (20).

5. A multi-stage reverse osmosis device according to claim 1, Features: The inner side of the guide shaft (18) has a protruding portion with a rectangular cross section, the position of the protruding portion corresponds to the convex plate (17), and the upper surface of the protruding portion contacts the lower surface of the reverse osmosis membrane (20).

6. A multi-stage reverse osmosis device according to claim 1, Features: The adjustment mechanism comprises a side wall groove (21), a rotating stud (22), a mounting box (191), a mounting screw hole (192), an internal mounting chamber (193), a storage battery (194), a remote receiving controller (195), a motor (196) and an output shaft (197); the side wall grooves (21) are opened on the front and rear side walls inside the reverse osmosis filter chamber (2); a shaft body is fixed in the front side wall groove (21), and a rotating stud (22) is rotatably mounted in the rear side wall groove (21); the mounting box (191) has two The shaft body movable set, the other of which is installed by matching the mounting screw hole (192) opened thereon and cooperating with the rotating stud (22), and the movable rotating shaft (19) is rotatably installed between the installation boxes (191) on the front and rear sides; the installation box (191) on the rear side has an internal installation chamber (193) inside; the internal installation chamber (193) is installed with a battery (194), a remote receiving controller (195) and a motor (196); the output shaft (197) of the motor (196) is fixedly connected to the movable rotating shaft (19) to drive it.

Images