Reverse osmosis equipment for industrial sewage treatment

Abstract

The invention relates to the field of reverse osmosis equipment, and provides reverse osmosis equipment for industrial sewage treatment, which comprises a reverse osmosis tube, a reverse osmosis filter element is mounted in the reverse osmosis tube, and the reverse osmosis filter element comprises a central tube, a plurality of layers of reverse osmosis membranes, a plurality of layers of support grids and a sealing layer membrane; the end part of the reverse osmosis pipe is connected with a driving motor, and the output end of the driving motor is connected to the central pipe. The reverse osmosis filter element has the effect of prolonging the service life of the reverse osmosis filter element.

Description

Technical Field

[0001] The present application relates to the field of reverse osmosis equipment, and in particular to a reverse osmosis equipment for industrial wastewater treatment. Background Art

[0002] Reverse osmosis is the reverse process of osmosis. It is a membrane separation process that uses pressure difference as the driving force to force the solution and solute in the solvent to separate. It is also a new separation technology that emerged in the 1960s. It is one of the most advanced separation technologies and is widely used.

[0003] The reverse osmosis device is provided with a reverse osmosis filter element, which includes a central tube, a multi-layer reverse osmosis membrane and a multi-layer support grid. The multi-layer reverse osmosis membrane and the multi-layer support grid are wound around the central tube at intervals. Among them, the reverse osmosis membrane is the core component of the reverse osmosis filter element, which is used to block most of the soluble solids, organic matter, bacteria and viruses in the water, and only allow water molecules to pass through; the support grid is used to separate adjacent reverse osmosis membranes to form a water passage cavity; one end of the central tube is closed, and the other end has a water outlet, and a plurality of through holes are opened on the peripheral side. When sewage treatment is carried out, raw water enters from one end of the filter element, and the end where it enters is the closed end of the central tube. Then, the raw water flows in the water passage cavity, enters the central tube from the through hole after being filtered by the multi-layer reverse osmosis membrane, and flows out from the water outlet end. The water outlet end of the central tube flows out as treated clean water, and the remaining concentrated water flows out from the reverse osmosis membrane and the support grid on the peripheral side of the water outlet end of the central tube.

[0004] As the amount of dirt blocked by the reverse osmosis filter increases, the dirt forms adhesion and deposition on the surface of the reverse osmosis membrane. In the long run, it will significantly reduce the desalination rate and water output of the reverse osmosis equipment and increase the operating pressure difference. Therefore, a reverse osmosis equipment is needed to facilitate the cleaning of the reverse osmosis filter element to extend the service life of the reverse osmosis filter element. Summary of the invention

[0005] In order to extend the service life of a reverse osmosis filter element, the present application provides a reverse osmosis device for industrial wastewater treatment.

[0006] The reverse osmosis equipment for industrial wastewater treatment provided in this application adopts the following technical solution: A reverse osmosis device for industrial sewage treatment comprises a frame and a reverse osmosis tube, wherein the reverse osmosis tube is installed on the frame; a reverse osmosis filter element is installed in the reverse osmosis tube, wherein the inner diameter of the reverse osmosis tube is larger than the outer diameter of the reverse osmosis filter element; the reverse osmosis filter element comprises a central tube, a multi-layer reverse osmosis membrane, a multi-layer supporting grid and a sealing layer membrane, wherein the central tube comprises a plugging section and a water-passing section, wherein the plugging section is connected to the end of the water-passing section, and a plurality of water-passing holes are provided through the circumference of the water-passing section; one side of the multi-layer reverse osmosis membrane is connected to the central tube, and the other side can move freely; one side of the multi-layer supporting grid is connected to the central tube, and the other side can move freely, and the multi-layer reverse osmosis membrane and the multi-layer supporting grid are arranged at intervals from each other; one side of the sealing layer membrane is connected to the central tube, and the other side can move freely By moving, the multiple layers of reverse osmosis membranes and the multiple layers of supporting grids are all located between the central tube and the sealing layer membrane; a driving motor is installed at the end of the reverse osmosis tube, the output shaft of the driving motor is connected to the blocking section, and the driving motor is used to drive the central tube to rotate around its own central axis; a plurality of water baffles are hinged on the inner wall of the reverse osmosis tube, and the plurality of water baffles are arranged around the central axis of the central tube, and adjacent water baffles abut against each other, and the side of the water baffle away from its hinge point abuts against the outer wall of the reverse osmosis filter element; the reverse osmosis tube is provided with a driving member, and the driving member is used to drive the water baffle to rotate relative to the central tube; one end of the reverse osmosis tube away from the driving motor is connected to a flushing pipe, and the other end is connected to a raw water pipe, and a water storage tank is provided at the end of the raw water pipe.

[0007] By adopting the above technical scheme, after the reverse osmosis filter element in the reverse osmosis tube has been used for a certain period of time, the driving member is started, and the driving member is used to drive the water baffle to rotate relative to the reverse osmosis tube, so as to release the abutment relationship between the water baffle and the reverse osmosis filter element; then the driving motor is started, and the driving motor is used to drive the central tube to rotate forward, and during the rotation process, the sealing layer membrane, the multi-layer reverse osmosis membrane and the multi-layer support grid are gradually loosened from the central tube; then flushing water is introduced into the reverse osmosis tube through the flushing pipe, and the debris attached to the reverse osmosis membrane and the support grid is washed down by the flushing water and enters the raw water pipe together with the flushing water; then the driving motor is restarted, and the driving motor is used to drive the central tube to rotate in the opposite direction, and the driving member is started at the same time, and the driving member is used to drive the water baffle to reset, and the sealing layer membrane, the reverse osmosis membrane and the support grid are gradually limited during the resetting process of the water baffle, so that the reverse osmosis membrane, the support grid and the sealing layer membrane are rewound around the central tube. At this point, the cleaning of the reverse osmosis filter element is completed without disassembling the reverse osmosis filter element, and the service life of the reverse osmosis filter element is extended.

[0008] Optionally, a water inlet is provided at one end of the water storage tank away from the raw water pipe, and the water inlet is used for introducing raw water.

[0009] By adopting the above technical solution, flushing water mixed with debris enters the water storage tank through the raw water pipe for storage. When the reverse osmosis equipment is working normally, the raw water enters the water storage tank from the water inlet and mixes with the flushing water. The mixed water enters the reverse osmosis pipe for subsequent treatment, so that the flushing water can be reused, reducing the waste of water resources.

[0010] Optionally, the height of the water storage tank is lower than the height of the reverse osmosis tube.

[0011] By adopting the above technical solution, the flushing water can enter the water storage tank under the action of its own gravity, thereby reducing the energy consumption during the flushing process of the reverse osmosis filter element.

[0012] Optionally, the driving motor acts as the driving member; the surface of the water baffle plate close to the driving motor is slidingly connected with a connecting rod, and the relative sliding path between the connecting rod and the water baffle plate is along the radial direction of the water baffle plate; the end of the reverse osmosis tube close to the driving motor is penetrated by a sliding hole for the connecting rod to pass through, and the hole wall of the sliding hole is fitted to the connecting rod; the end of the connecting rod away from the water baffle is connected with a screw rod; the end face of the reverse osmosis tube close to the driving motor is rotatably connected with a first gear and a second gear, the first gear is fixed to the output shaft of the driving motor, the second gear is rotatably connected to the reverse osmosis tube, and the second gear is meshed with the first gear; the second gear is penetrated by a guide screw hole, and the screw rod is threadedly engaged with the guide screw hole.

[0013] Optionally, the connecting rod is a prismatic structure.

[0014] By adopting the above technical solution, the hole wall of the sliding hole is used to limit the connecting rod, restrict the rotation of the connecting rod, increase the force uniformity of the connecting rod, and reduce the risk of damage to the connecting rod.

[0015] Optionally, a packaging sleeve made of elastic material is provided in the reverse osmosis tube, and the packaging sleeve includes a first annular piece and a second annular piece, the outer side of the first piece is connected to the inner wall of the reverse osmosis tube, the inner side is connected to the inner side of the second piece, and the outer side of the second piece is connected to the inner wall of the reverse osmosis tube; the multiple water retaining plates are located between the first piece and the second piece.

[0016] By adopting the above technical solution, multiple water baffles are wrapped in a packaging sleeve, so that the packaging sleeve covers the intervals between adjacent water baffles, reducing the risk of raw water passing between adjacent water baffles and improving the water retaining effect of the water baffles.

[0017] Optionally, the first sheet and the second sheet are integrally formed.

[0018] By adopting the above technical solution, the water-blocking effect of the packaging sleeve is further ensured.

[0019] Optionally, the packaging sleeve also includes a contact sheet, which is arranged around the circumference of the reverse osmosis filter element, one side of the contact sheet is connected to the inner side of the first sheet, and the other side is connected to the inner side of the second sheet, and the contact sheet is used to abut against the reverse osmosis filter element.

[0020] By adopting the above technical solution and providing the abutment sheet, a larger and more reliable abutment area is provided between the packaging sleeve and the reverse osmosis filter element, thereby further improving the water retaining effect of the packaging sleeve and the water retaining plate.

[0021] Optionally, the abutment sheet is provided with a gas cavity, an air bag is fixedly connected to a surface of the water baffle plate close to the drive motor, and an inner cavity of the air bag is communicated with the gas cavity.

[0022] By adopting the above technical solution, when treating raw water, the raw water enters the reverse osmosis tube through the raw water pipe. When the raw water flows, it squeezes the first sheet, and then squeezes the airbag, so that the gas in the airbag enters the gas cavity, thereby causing the abutment sheet to expand to a certain extent, thereby increasing the abutment strength between the abutment sheet and the reverse osmosis filter element, and further improving the water-retaining strength of the packaging sleeve and the water retaining plate.

[0023] Optionally, a surface of the abutment sheet facing the reverse osmosis filter element is provided with a plurality of cross grooves, and the plurality of cross grooves are evenly distributed on the abutment sheet.

[0024] By adopting the above technical solution, during the expansion of the abutment sheet, the cross groove gradually opens, and under the mutual squeezing of the abutment sheet and the reverse osmosis filter element, the cross groove abuts against the reverse osmosis filter element, and the air between the cross groove and the reverse osmosis filter element is squeezed out, so that the cross groove has an adsorption effect similar to that of a suction cup, thereby establishing a connection between the abutment sheet and the reverse osmosis filter element, further improving the water retaining effect of the packaging sleeve and the water retaining plate.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By making the reverse osmosis membrane, the support grid and one side of the sealing layer membrane move freely, and arranging a driving motor at the end of the reverse osmosis tube, the central tube is connected to the output shaft of the driving motor; when cleaning the reverse osmosis filter element, the driving motor is used to drive the central tube to rotate forward to loosen the reverse osmosis membrane. After cleaning, the driving motor drives the reverse osmosis membrane to be re-tightened around the central tube, so that the reverse osmosis filter element can be cleaned after a certain period of use, thereby extending the service life of the reverse osmosis filter element; 2. By providing a packaging sleeve, the water retaining plate is wrapped with the packaging sleeve to improve the water retaining effect of the water retaining plate; 3. By sliding a connecting rod on the water baffle, connecting a screw rod to the end of the connecting rod away from the water baffle, and setting a second gear meshing with the first gear at the end of the reverse osmosis tube, using a driving motor as a driving member, the water baffle is rotated while the central tube rotates, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of Example 1 of the present application.

[0027] Figure 2 It is a schematic diagram for showing the structure of the reverse osmosis filter element in Example 1.

[0028] Figure 3 yes Figure 1 An enlarged schematic diagram in part A.

[0029] Figure 4 It is a schematic diagram for showing the structure of the packaging sleeve in Example 1.

[0030] Figure 5 It is a schematic diagram for showing the structure of the abutment sheet in Example 1.

[0031] Figure 6 It is a structural diagram of Example 2 of the present application.

[0032] Explanation of the accompanying drawings: 1. frame; 2. reverse osmosis tube; 21. driving member; 22. sliding hole; 11. tube body; 12. cover body; 13. first gear; 14. second gear; 141. guide screw hole; 3. raw water pipe; 4. water outlet pipe; 5. reverse osmosis filter element; 51. central tube; 511. sealing section; 512. water passage section; 513. water passage hole; 52. reverse osmosis membrane; 53. supporting grid; 54. sealing layer membrane; 55. driving motor; 56. water baffle; 561. connecting rod; 562. screw rod; 57. flushing tube; 58. packaging sleeve; 581. first sheet; 582. second sheet; 583. abutment sheet; 584. gas cavity; 585. air bag; 586. cross groove; 6. water storage tank; 61. water inlet. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a reverse osmosis device for industrial wastewater treatment.

[0035] Example 1 Reference Figure 1A reverse osmosis device for industrial sewage treatment includes a frame 1, a reverse osmosis pipe 2, a raw water pipe 3 and an outlet pipe 4. The reverse osmosis pipe 2, the raw water pipe 3 and the outlet pipe 4 are all installed on the frame 1. The raw water pipe 3 is connected to the reverse osmosis pipe 2 at one end of the reverse osmosis pipe 2, and the outlet pipe 4 is connected to the reverse osmosis pipe 2 at the other end of the reverse osmosis pipe 2.

[0036] The reverse osmosis tube 2 includes a tube body 11 and a cover body 12 . The cover body 12 is detachably connected to the tube body 11 , so as to facilitate installation and maintenance of the reverse osmosis filter element 5 . The raw water pipe 3 is connected to the cover body 12 .

[0037] A reverse osmosis filter element 5 is installed in the reverse osmosis tube 2 , and the inner diameter of the reverse osmosis tube 2 is larger than the outer diameter of the reverse osmosis filter element 5 .

[0038] The reverse osmosis filter element 5 includes a central tube 51, a multi-layer reverse osmosis membrane 52, a multi-layer supporting grid 53 and a sealing layer membrane 54. The central tube 51 includes a blocking section 511 and a water passing section 512. The blocking section 511 is connected to the end of the water passing section 512. A plurality of water passing holes 513 are provided on the circumference of the water passing section 512. One side of the multi-layer reverse osmosis membrane 52 is connected to the central tube 51, and the other side can move freely. One side of the multi-layer supporting grid 53 is connected to the central tube 51, and the other side can move freely. The multi-layer reverse osmosis membrane 52 and the multi-layer supporting grid 53 are spaced apart from each other. One side of the sealing layer membrane 54 is connected to the central tube 51, and the other side can move freely. The multi-layer reverse osmosis membrane 52 and the multi-layer supporting grid 53 are located between the central tube 51 and the sealing layer membrane 54.

[0039] A driving motor 55 is installed at the end of the reverse osmosis tube 2, and the driving motor 55 is fixedly connected to the cover body 12. The output shaft of the driving motor 55 is connected to the blocking section 511, and the driving motor 55 is used to drive the central tube 51 to rotate about its own central axis. The inner wall of the reverse osmosis tube 2 is hinged with a plurality of water baffles 56, and the plurality of water baffles 56 are arranged around the central axis of the central tube 51, and adjacent water baffles 56 abut against each other, and the side of the water baffle 56 away from its hinge point abuts against the outer wall of the reverse osmosis filter element 5. The reverse osmosis tube 2 is provided with a driving member 21, and the driving member 21 is used to drive the water baffle 56 to rotate relative to the central tube 51.

[0040] A flushing pipe 57 is installed at one end of the reverse osmosis tube 2 away from the driving motor 55 , and the lumen of the flushing pipe 57 is communicated with the lumen of the reverse osmosis tube 2 .

[0041] After the reverse osmosis filter element 5 in the reverse osmosis tube 2 has been used for a certain period of time, the driving member 21 is started, and the driving member 21 is used to drive the water baffle plate 56 to rotate relative to the reverse osmosis tube 2, thereby releasing the abutment relationship between the water baffle plate 56 and the reverse osmosis filter element 5; then the driving motor 55 is started, and the driving motor 55 is used to drive the central tube 51 to rotate forwardly. During the rotation process, the sealing layer membrane 54, the multi-layer reverse osmosis membrane 52 and the multi-layer support grid 53 are gradually loosened from the central tube 51; then flushing water is introduced into the reverse osmosis tube 2 through the flushing pipe 57, After the debris attached to the reverse osmosis membrane 52 and the support grid 53 are washed down by the flushing water, they enter the raw water pipe 3 together with the flushing water; then the driving motor 55 is restarted, and the driving member 21 is used to drive the central tube 51 to rotate in the opposite direction with the driving motor 55, and the driving member 21 is started at the same time, and the water baffle 56 is driven to reset. During the reset of the water baffle 56, the sealing layer membrane 54, the reverse osmosis membrane 52 and the support grid 53 are gradually limited, so that the reverse osmosis membrane 52, the support grid 53 and the sealing layer membrane 54 are rewound around the central tube 51. At this point, the reverse osmosis filter element 5 is cleaned without disassembling the reverse osmosis filter element 5, and the service life of the reverse osmosis filter element 5 is extended.

[0042] Furthermore, a water inlet 61 is provided at one end of the water storage tank 6 away from the raw water pipe 3, and the water inlet 61 is used to introduce raw water. Flushing water mixed with impurities enters the water storage tank 6 through the raw water pipe 3 for storage. When the reverse osmosis device is working normally, the raw water enters the water storage tank 6 from the water inlet 61 and mixes with the flushing water. The mixed water enters the reverse osmosis pipe 2 together for subsequent treatment, so that the flushing water can be reused, reducing the waste of water resources.

[0043] Furthermore, the height of the water tank 6 is lower than the height of the reverse osmosis tube 2 , so that the flushing water can enter the water tank 6 under the action of its own gravity, thereby reducing the energy consumption during the flushing process of the reverse osmosis filter element 5 .

[0044] Furthermore, a packaging sleeve 58 made of elastic material is provided in the reverse osmosis tube 2, and the packaging sleeve 58 includes a first annular sheet 581 and a second annular sheet 582, the outer side of the first sheet 581 is connected to the inner wall of the reverse osmosis tube 2, the inner side is connected to the inner side of the second sheet 582, and the outer side of the second sheet 582 is connected to the inner wall of the reverse osmosis tube 2; multiple water retaining plates 56 are located between the first sheet 581 and the second sheet 582. With this design, multiple water retaining plates 56 are wrapped in the packaging sleeve 58, so that the packaging sleeve 58 is used to cover the intervals between adjacent water retaining plates 56, reduce the risk of raw water passing through between adjacent water retaining plates 56, and improve the water retaining effect of the water retaining plates 56.

[0045] The first sheet 581 and the second sheet 582 are integrally formed to further ensure the water-blocking effect of the packaging sleeve 58 .

[0046] Furthermore, the packing sleeve 58 further includes a contact sheet 583, which is disposed around the circumference of the reverse osmosis filter element 5, one side of the contact sheet 583 is connected to the inner side of the first sheet 581, and the other side is connected to the inner side of the second sheet 582, and the contact sheet 583 is used to contact the reverse osmosis filter element 5. By providing the contact sheet 583, a larger and more reliable contact area is provided between the packing sleeve 58 and the reverse osmosis filter element 5, and the water retaining effect of the packing sleeve 58 and the water retaining plate 56 is further improved.

[0047] The abutment sheet 583 is provided with a gas cavity 584, and the surface of the water baffle plate 56 close to the driving motor 55 is fixedly connected with an air bag 585, and the inner cavity of the air bag 585 is connected with the gas cavity 584. When treating raw water, the raw water enters the reverse osmosis tube 2 through the raw water pipe 3, and the raw water squeezes the first sheet 581 and then squeezes the air bag 585 when flowing, so that the gas in the air bag 585 enters the gas cavity 584, so that the abutment sheet 583 expands to a certain extent, thereby increasing the abutment strength between the abutment sheet 583 and the reverse osmosis filter element 5, and further improving the water-blocking strength of the packaging sleeve 58 and the water baffle plate 56.

[0048] Furthermore, a plurality of cross grooves 586 are provided on the surface of the abutment sheet 583 facing the reverse osmosis filter element 5, and the plurality of cross grooves 586 are evenly distributed on the abutment sheet 583. During the expansion of the abutment sheet 583, the cross grooves 586 gradually open, and under the mutual squeezing of the abutment sheet 583 and the reverse osmosis filter element 5, the cross grooves 586 abut against the reverse osmosis filter element 5, and the air between the cross grooves 586 and the reverse osmosis filter element 5 is squeezed out, so that the cross grooves 586 play a suction effect similar to that of a suction cup, thereby establishing a connection between the abutment sheet 583 and the reverse osmosis filter element 5, and further improving the water-blocking effect of the packaging sleeve 58 and the water-blocking plate 56.

[0049] Example 2 Reference Figure 6 , the difference between this embodiment and embodiment 1 is that the driving motor 55 acts as the driving member 21; the surface of the water baffle 56 close to the driving motor 55 is slidably connected with a connecting rod 561, and the path of relative sliding between the connecting rod 561 and the water baffle 56 is along the radial direction of the water baffle 56. The cover body 12 is provided with a sliding hole 22 for the connecting rod 561 to pass through, and the hole wall of the sliding hole 22 is fitted to the connecting rod 561. The end of the connecting rod 561 away from the water baffle 56 is connected with a screw rod 562. The cover body 12 is rotatably connected with a first gear 13 and a second gear 14, the first gear 13 is fixed to the output shaft of the driving motor 55, and the second gear 14 is rotatably connected to the reverse osmosis tube 2, and the second gear 14 and the first gear 13 are meshed with each other; the second gear 14 is provided with a guide screw hole 141, and the screw rod 562 is threadedly matched with the guide screw hole 141.

[0050] In this embodiment, the connecting rod 561 is a prismatic structure, so that the hole wall of the sliding hole 22 can be used to limit the connecting rod 561, restrict the rotation of the connecting rod 561, increase the force uniformity of the connecting rod 561, and reduce the risk of damage to the connecting rod 561.

[0051] 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. A reverse osmosis device for industrial wastewater treatment, characterized in that: The invention comprises a frame (1) and a reverse osmosis tube (2), wherein the reverse osmosis tube (2) is installed on the frame (1); a reverse osmosis filter element (5) is installed in the reverse osmosis tube (2), wherein the inner diameter of the reverse osmosis tube (2) is larger than the outer diameter of the reverse osmosis filter element (5); the reverse osmosis filter element (5) comprises a central tube (51), a multi-layer reverse osmosis membrane (52), a multi-layer support grid (53) and a sealing layer membrane (54); the central tube (51) comprises a blocking section (511) and a water-passing section (512); the blocking section (511) is connected to the end of the water-passing section (512); and the circumference of the water-passing section (512) is penetrated by an opening A plurality of water holes (513) are provided; one side of the multi-layer reverse osmosis membrane (52) is connected to the central tube (51), and the other side is freely movable; one side of the multi-layer support grid (53) is connected to the central tube (51), and the other side is freely movable, and the multi-layer reverse osmosis membrane (52) and the multi-layer support grid (53) are arranged at intervals from each other; one side of the sealing layer membrane (54) is connected to the central tube (51), and the other side is freely movable, and the multi-layer reverse osmosis membrane (52) and the multi-layer support grid (53) are located between the central tube (51) and the sealing layer membrane (54); A driving motor (55) is installed at the end of the reverse osmosis tube (2), the output shaft of the driving motor (55) is connected to the blocking section (511), and the driving motor (55) is used to drive the central tube (51) to rotate around its central axis; The inner wall of the reverse osmosis tube (2) is hinged with a plurality of water baffles (56), the plurality of water baffles (56) are arranged around the central axis of the central tube (51), adjacent water baffles (56) abut against each other, and a side of the water baffle (56) away from its hinge point abuts against the outer wall of the reverse osmosis filter element (5); the reverse osmosis tube (2) is provided with a driving member (21), the driving member (21) being used to drive the water baffles (56) to rotate relative to the central tube (51); One end of the reverse osmosis pipe (2) away from the drive motor (55) is connected to a flushing pipe (57), and the other end is connected to a raw water pipe (3). A water storage tank (6) is provided at the end of the raw water pipe (3).

2. A reverse osmosis device for industrial wastewater treatment according to claim 1, characterized in that: A water inlet (61) is provided at one end of the water storage tank (6) away from the raw water pipe (3), and the water inlet (61) is used to allow raw water to flow in.

3. A reverse osmosis device for industrial wastewater treatment according to claim 2, characterized in that: The height of the water storage tank (6) is lower than the height of the reverse osmosis tube (2).

4. The reverse osmosis equipment for industrial wastewater treatment according to claim 1, characterized in that: The driving motor (55) serves as the driving member (21); a connecting rod (561) is slidably connected to the surface of the water baffle (56) close to the driving motor (55); a path for relative sliding between the connecting rod (561) and the water baffle (56) is along the radial direction of the water baffle (56); a sliding hole (22) for the connecting rod (561) to pass through is formed through the end of the reverse osmosis tube (2) close to the driving motor (55); the hole wall of the sliding hole (22) is in contact with the connecting rod (561); the connecting rod (561) is away from the water baffle ( The end of the reverse osmosis tube (2) is connected to a screw rod (562); the end surface of the reverse osmosis tube (2) close to the drive motor (55) is rotatably connected to a first gear (13) and a second gear (14); the first gear (13) is fixedly connected to the output shaft of the drive motor (55); the second gear (14) is rotatably connected to the reverse osmosis tube (2); the second gear (14) and the first gear (13) are meshed with each other; a guide screw hole (141) is formed through the second gear (14); the screw rod (562) is threadedly matched with the guide screw hole (141).

5. A reverse osmosis device for industrial wastewater treatment according to claim 4, characterized in that: The connecting rod (561) is a prismatic structure.

6. The reverse osmosis equipment for industrial wastewater treatment according to claim 1, characterized in that: The reverse osmosis tube (2) is provided with a packaging sleeve (58) made of elastic material, the packaging sleeve (58) comprising a first annular sheet (581) and a second annular sheet (582), the outer side of the first sheet (581) being connected to the inner wall of the reverse osmosis tube (2), the inner side of the first sheet (581) being connected to the inner side of the second sheet (582), the outer side of the second sheet (582) being connected to the inner wall of the reverse osmosis tube (2); the plurality of water retaining plates (56) are all located between the first sheet (581) and the second sheet (582).

7. A reverse osmosis device for industrial wastewater treatment according to claim 6, characterized in that: The first sheet (581) and the second sheet (582) are integrally formed.

8. The reverse osmosis equipment for industrial wastewater treatment according to claim 6, characterized in that: The packaging sleeve (58) further comprises a contact sheet (583), the contact sheet (583) being arranged around the circumference of the reverse osmosis filter element (5), one side of the contact sheet (583) being connected to the inner side of the first sheet (581), and the other side of the contact sheet (583) being connected to the inner side of the second sheet (582), the contact sheet (583) being used for contacting the reverse osmosis filter element (5).

9. The reverse osmosis equipment for industrial sewage treatment according to claim 8, characterized in that: The abutment sheet (583) is provided with a gas cavity (584); a surface of the water baffle (56) close to the drive motor (55) is fixedly connected with an air bag (585); and an inner cavity of the air bag (585) is communicated with the gas cavity (584).

10. The reverse osmosis equipment for industrial wastewater treatment according to claim 9, characterized in that: A plurality of cross grooves (586) are provided on the surface of the contact piece (583) facing the reverse osmosis filter element (5), and the plurality of cross grooves (586) are evenly distributed on the contact piece (583).

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