Double-osmosis type water purification equipment

Abstract

The invention discloses double-permeation type water purification equipment, and relates to the technical field of pure water production, the equipment comprises two permeation tanks, the two permeation tanks are respectively a first permeation tank and a second permeation tank, the upper ends of the permeation tanks are connected with tank covers through locking structures, the tank covers are connected with reverse osmosis membranes through quick release structures, positioning grooves are formed in the inner bottoms of the permeation tanks, and the reverse osmosis membranes are connected with the reverse osmosis tanks through quick release structures. A stirring structure is arranged on the permeation tank, a water inlet of the first permeation tank is communicated with a water outlet end of the first water pump, a water outlet of the first permeation tank is communicated with a water inlet end of the second water pump, a water outlet end of the second water pump is communicated with a water inlet of the second permeation tank, a water outlet of the second permeation tank is communicated with the pure water tank, and a water outlet of the second permeation tank is communicated with the first permeation tank. By arranging the stirring structure on the permeation tank, when raw water is subjected to reverse osmosis filtration, the rotating second magnetic block drives the stirring strip in the permeation tank to stir liquid in the tank through the first magnetic block, so that the mixing speed of high-concentration raw water and newly introduced low-concentration raw water is increased, and the reverse osmosis rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of pure water production, in particular to a double-permeation pure water device. Background Art

[0002] Osmotic pure water equipment refers to filtering raw water through the reverse osmosis principle to obtain pure water without impurities. When the reverse osmosis tank performs reverse osmosis filtration on the raw water, the concentration of the solution on the raw water side of the reverse osmosis membrane in the tank will increase. The raw water newly introduced into the reverse osmosis tank cannot be evenly mixed with the high-concentration raw water in time, and the reverse osmosis efficiency is low.

[0003] Based on this, a double permeation pure water device is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0004] The object of the present invention is to provide a double osmosis pure water device to solve the problem of low reverse osmosis efficiency in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A double osmosis pure water device comprises two osmosis tanks, the two osmosis tanks are respectively a first osmosis tank and a second osmosis tank, the upper end of the osmosis tank is connected to a tank cover by a locking structure, the tank cover is connected to a reverse osmosis membrane by a quick-release structure, a positioning groove matching the reverse osmosis membrane is provided at the bottom of the inner part of the osmosis tank, a water outlet is provided at the position corresponding to the positioning groove at the lower end of the osmosis tank, a water inlet and a drain are provided on the outer side of the osmosis tank, a stirring structure is provided on the osmosis tank, the water inlet of the first osmosis tank is connected to the water outlet of a first water pump, the water outlet of the first osmosis tank is connected to the water inlet of a second water pump, the water outlet of the second water pump is connected to the water inlet of a second osmosis tank, the water outlet of the second osmosis tank is connected to a pure water tank, and the drain of the second osmosis tank is connected to the first osmosis tank.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the quick-release structure includes a mounting groove arranged on the tank cover, the mounting groove is provided with a limit groove, the reverse osmosis membrane is connected with a limit block, the limit block is slidably arranged in the limit groove, the outer side of the mounting groove is rotatably connected with a rotating ring, the rotating ring is provided with a mounting opening at a position corresponding to the limit groove, a W-shaped elastic sheet is provided in the mounting opening, and both ends of the elastic sheet are respectively fixed to the outer side of the rotating ring.

[0007] In an optional solution: a circle of elastic sheet accommodating grooves is provided at the position of the elastic sheet on the outer side of the installation groove.

[0008] In an optional solution, four guide grooves are arranged in a circumferential array on the upper end of the permeation tank, and four guide plates are connected to the tank cover, and the guide grooves correspond to the guide plates one by one.

[0009] In an optional solution: the locking structure includes a U-shaped extension block connected to the tank cover, a T-shaped stud is hinged on the permeation tank at a position corresponding to the U-shaped extension block, a nut is threadedly connected to the T-shaped stud, and a force rod is connected to the nut.

[0010] In an optional scheme: the stirring structure includes a first rotating ring rotatably connected to the inner bottom surface of the permeation tank, a plurality of stirring bars are arranged in a vertical circular array on the first rotating ring, the upper ends of the plurality of stirring bars are all connected to a second rotating ring, a plurality of guide wheels are arranged in a circular array on the second rotating ring, the guide wheels are rotatably connected to the second rotating ring, a first magnetic block is connected to the stirring bar, and a stirring drive assembly is provided on the outside of the permeation tank.

[0011] In an optional scheme: the stirring drive assembly includes a fixed ring connected to the outside of the permeation tank, the fixed ring is rotatably connected to a driving ring, the driving ring is provided with a plurality of second magnetic blocks, the second magnetic blocks correspond one-to-one to the first magnetic blocks, a circle of gear blocks is provided on the outside of the driving ring, the fixed ring is connected to a driving motor, the output end of the driving motor is connected to a gear, and the gear is meshed with a circle of gear blocks.

[0012] In an optional scheme: a first water inlet check valve is provided between the first water pump and the water inlet of the first permeation tank, a second water inlet check valve is provided between the second water pump and the water inlet of the second permeation tank, a first electric three-way valve is provided between the water outlet of the first permeation tank and the second water pump, three interfaces on the first electric three-way valve are numbered 1, 2, and 3 respectively, port 1 of the first electric three-way valve is connected to the water outlet of the first permeation tank, port 2 of the first electric three-way valve is connected to the water inlet end of the second water pump, a second electric three-way valve is provided between the water outlet of the second permeation tank and the pure water tank, three interfaces on the second electric three-way valve are numbered 1, 2, and 3 respectively, port 1 of the second electric three-way valve is connected to the water outlet of the second permeation tank, Port No. 2 of the second electric three-way valve is connected to the water inlet of the pure water tank, port No. 3 of the second electric three-way valve is connected to the water outlet of the first flushing high-pressure pump, the water inlet of the first flushing high-pressure pump is connected to the pure water tank, a water outlet check valve is provided between the drain outlet of the second permeation tank and the first permeation tank, a third electric three-way valve is provided between the water outlet check valve and the first permeation tank, three interfaces on the third electric three-way valve are numbered 1, 2, and 3 respectively, port No. 1 of the third electric three-way valve is connected to the water outlet of the water outlet check valve, port No. 2 of the third electric three-way valve is connected to the first permeation tank, port No. 3 of the third electric three-way valve is connected to the water inlet of the second flushing high-pressure pump, and the water outlet of the second flushing high-pressure pump is connected to port No. 3 of the first electric three-way valve.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a stirring structure on the osmosis tank. When the raw water is subjected to reverse osmosis filtration, the second magnetic block rotating outside the osmosis tank drives the first magnetic block inside the osmosis tank to rotate, so that the stirring bar inside the osmosis tank stirs the liquid in the osmosis tank, thereby accelerating the mixing speed between the high-concentration raw water and the newly introduced low-concentration raw water, and improving the reverse osmosis rate.

[0014] 2. The present invention adds a first electric three-way valve, a second electric three-way valve, a third electric three-way valve and a first flushing high-pressure pump and a second flushing high-pressure pump in the connecting pipeline of the osmosis tank. When the reverse osmosis efficiency of the reverse osmosis membrane in the osmosis tank decreases, the first electric three-way valve, the second electric three-way valve and the third electric three-way valve are used to adjust the flow direction of the liquid in the pipeline, and the first flushing high-pressure pump and the second flushing high-pressure pump are used to pump water to reversely flush the reverse osmosis membrane in the osmosis tank, thereby clearing the reverse osmosis membrane and helping to maintain the reverse osmosis efficiency of the reverse osmosis membrane.

[0015] 3. The present invention connects the reverse osmosis membrane through a quick-release structure, and when the reverse osmosis membrane fails, disassembly and assembly are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 For the present invention Figure 1 A partial enlarged view of middle A.

[0018] Figure 3 For the present invention Figure 1 A partial enlarged view of B.

[0019] Figure 4 For the present invention Figure 1 A partial enlarged view of C in the middle.

[0020] Figure 5 For the present invention Figure 1 A partial enlarged view of D in the middle.

[0021] Figure 6 It is a schematic diagram of the water outlet one-way valve of the present invention.

[0022] Figure 7 For the present invention Figure 6 A partial enlarged view of E.

[0023] Figure 8 It is a schematic diagram of the quick-release structure of the present invention.

[0024] Fig. 9 It is a schematic diagram of the elastic sheet accommodating groove of the present invention.

[0025] Fig.10 Schematic diagram of the stirring bar of the present invention.

[0026] Fig.11 It is a schematic diagram of the positioning groove of the present invention.

[0027] Notes on figure numbers: 101, first permeation tank; 102, water inlet; 103, water outlet; 104, drain outlet; 105, tank cover; 106, positioning groove; 107, reverse osmosis membrane; 108, second permeation tank; 109, pure water tank; 201, limit block; 202, mounting groove; 203, limit groove; 204, rotating ring; 205, mounting port; 206, elastic sheet; 207, elastic sheet accommodating groove; 301, U-shaped extension block; 302, T-shaped stud; 303, nut; 304, force rod; 305, guide groove; 306, guide plate; 401, first Rotating ring; 402, stirring bar; 403, second rotating ring; 404, guide wheel; 405, first magnetic block; 406, fixed ring; 407, driving ring; 408, second magnetic block; 409, gear block; 410, driving motor; 411, gear; 501, first water inlet check valve; 502, first water pump; 503, second water pump; 504, second water inlet check valve; 505, water outlet check valve; 601, first electric three-way valve; 602, second electric three-way valve; 603, third electric three-way valve; 604, first flushing high-pressure pump; 605, second flushing high-pressure pump. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] In one embodiment, Figure 1-Figure 11 As shown, a double osmosis pure water device includes two osmosis tanks, the two osmosis tanks are respectively a first osmosis tank 101 and a second osmosis tank 108, the upper end of the osmosis tank is connected to a tank cover 105 through a locking structure, the tank cover 105 is connected to a reverse osmosis membrane 107 through a quick release structure, a positioning groove 106 matching the reverse osmosis membrane 107 is provided at the bottom of the osmosis tank, a water outlet 103 is provided at the position corresponding to the positioning groove 106 at the lower end of the osmosis tank, and a water inlet 102 and a drain are provided on the outer side of the osmosis tank. Port 104, a stirring structure is provided on the permeation tank, the water inlet 102 of the first permeation tank 101 is connected to the water outlet of the first water pump 502, the water outlet 103 of the first permeation tank 101 is connected to the water inlet of the second water pump 503, the water outlet of the second water pump 503 is connected to the water inlet 102 of the second permeation tank 108, the water outlet 103 of the second permeation tank 108 is connected to the pure water tank 109, and the drain port 104 of the second permeation tank 108 is connected to the first permeation tank 101.

[0030] In this embodiment, the quick-release structure facilitates the installation and removal of the reverse osmosis membrane 107 on the tank cover 105, which is convenient for maintenance. When the tank cover 105 is locked, it is tightly connected to the permeation tank to prevent leakage. The stirring mechanism stirs the liquid in the permeation tank to accelerate the mixing speed between the high-concentration raw water and the newly introduced low-concentration raw water, thereby improving the reverse osmosis rate. The first water pump 502 pumps the raw water into the first permeation tank 101, and the filtered water is filtered by the reverse osmosis membrane 107 in the first permeation tank 101. The filtered water is pressurized and pumped into the second permeation tank 108 by the second water pump 503. The pure water obtained by filtering the reverse osmosis membrane 107 in the second permeation tank 108 is passed into the pure water tank 109 through the water outlet 103 of the second permeation tank 108 for storage. The high-concentration raw water in the second permeation tank 108 is passed into the first permeation tank 101 through the drain port 104 of the second permeation tank 108 for secondary reverse osmosis treatment, thereby improving the utilization rate of the raw water.

[0031] In one embodiment, Figure 8-Figure 9As shown, the quick-release structure includes a mounting groove 202 arranged on the tank cover 105, a limiting groove 203 is arranged on the mounting groove 202, a limiting block 201 is connected to the reverse osmosis membrane 107, the limiting block 201 is slidably arranged in the limiting groove 203, a rotating ring 204 is rotatably connected to the outer side of the mounting groove 202, a mounting opening 205 is arranged on the rotating ring 204 at a position corresponding to the limiting groove 203, a W-shaped elastic sheet 206 is arranged in the mounting opening 205, and both ends of the elastic sheet 206 are respectively fixed to the rotating ring 2 04, when installing the reverse osmosis membrane 107, align the limit block 201 on the reverse osmosis membrane 107 with the limit groove 203, insert the reverse osmosis membrane 107 into the installation groove 202, rotate the rotating ring 204, so that the elastic sheet 206 on the rotating ring 204 is embedded in the limit groove 203, which plays a limiting role on the limit block 201, thereby fixing the reverse osmosis membrane 107 on the tank cover 105. When removing the reverse osmosis membrane 107, rotate the rotating ring 204 again to remove the elastic sheet 206.

[0032] In one embodiment, Fig. 9 As shown, a circle of elastic sheet receiving grooves 207 is provided at the position of the elastic sheet 206 on the outer side of the installation groove 202. When the rotating ring 204 is in the unlocked state, the elastic sheet 206 slides and contacts the elastic sheet receiving grooves 207. Compared with the rotating ring 204 in the locked state, the elastic deformation generated by the elastic sheet 206 is smaller, thereby extending the service life of the elastic sheet 206.

[0033] In one embodiment, Figure 1 , Figure 7 and Figure 8 As shown, four guide grooves 305 are provided in a circular array at the upper end of the permeation tank, and four guide plates 306 are connected to the tank cover 105. The guide grooves 305 correspond to the guide plates 306 one by one. When installing the tank cover 105, the guide plates 306 are aligned with the guide grooves 305 one by one, and then the tank cover 105 is lowered. At this time, the lower end of the reverse osmosis membrane 107 is facing the positioning groove 106, and there is no need to make additional corrections to the tank cover 105 to insert the reverse osmosis membrane 107 into the positioning groove 106.

[0034] In one embodiment, Figure 7 As shown, the locking structure includes a U-shaped extension block 301 connected to the tank cover 105, and a T-shaped stud 302 is hinged on the position of the permeation tank corresponding to the U-shaped extension block 301, and a nut 303 is threadedly connected to the T-shaped stud 302, and a force rod 304 is connected to the nut 303. After the tank cover 105 is placed on the permeation tank, the T-shaped stud 302 is rotated to make it stuck in the U-shaped extension block 301, and the nut 303 is rotated by the force rod 304, and the nut 303 presses the U-shaped extension block 301, thereby fixing the tank cover 105 on the permeation tank.

[0035] In one embodiment, Figure 5 and Fig.10 As shown, the stirring structure includes a first rotating ring 401 rotatably connected to the bottom surface of the permeation tank, a plurality of stirring bars 402 are arranged in a vertical circumferential array on the first rotating ring 401, and the upper ends of the plurality of stirring bars 402 are all connected to a second rotating ring 403, a plurality of guide wheels 404 are arranged in a circumferential array on the second rotating ring 403, the guide wheels 404 are rotatably connected to the second rotating ring 403, the stirring bars 402 are connected to a first magnetic block 405, a stirring drive assembly is arranged on the outside of the permeation tank, the stirring drive assembly includes a fixed ring 406 connected to the outside of the permeation tank, a driving ring 407 is rotatably connected to the fixed ring 406, a plurality of second magnetic blocks 408 are arranged on the driving ring 407, and the second magnetic blocks 408 are connected to the first magnetic blocks 405. In one-to-one correspondence, a circle of gear blocks 409 are provided on the outer side of the driving ring 407, and a driving motor 410 is connected to the fixed ring 406. A gear 411 is connected to the output end of the driving motor 410, and the gear 411 is meshed with the circle of gear blocks 409. The driving motor 410 drives the driving ring 407 to rotate on the fixed ring 406 through the gear 411 and the gear block 409. When the second magnetic block 408 on the driving ring 407 rotates, it drives the first magnetic block 405 in the osmosis tank to rotate. The first magnetic block 405 drives the first rotating ring 401 together with the stirring bar 402 and the second rotating ring 403 to rotate, so as to stir the raw water in the osmosis tank, accelerate the mixing speed between the high-concentration raw water and the newly introduced low-concentration raw water, and improve the reverse osmosis rate.

[0036] In one embodiment, Figure 1-Figure 4 and Figure 6As shown, a first water inlet check valve 501 is provided between the first water pump 502 and the water inlet 102 of the first permeation tank 101, a second water inlet check valve 504 is provided between the second water pump 503 and the water inlet 102 of the second permeation tank 108, a first electric three-way valve 601 is provided between the water outlet 103 of the first permeation tank 101 and the second water pump 503, three interfaces on the first electric three-way valve 601 are numbered 1, 2, and 3 respectively, port 1 of the first electric three-way valve 601 is connected to the water outlet 103 of the first permeation tank 101, port 2 of the first electric three-way valve 601 is connected to the water inlet end of the second water pump 503, a second electric three-way valve 602 is provided between the water outlet 103 of the second permeation tank 108 and the pure water tank 109, The three interfaces on the second electric three-way valve 602 are numbered 1, 2, and 3 respectively. Port 1 of the second electric three-way valve 602 is connected to the water outlet 103 of the second permeation tank 108, port 2 of the second electric three-way valve 602 is connected to the water inlet end of the pure water tank 109, port 3 of the second electric three-way valve 602 is connected to the water outlet end of the first flushing high-pressure pump 604, and the water inlet end of the first flushing high-pressure pump 604 is connected to the pure water tank 109. A water outlet check valve 505 is provided between the drain outlet 104 of the second permeation tank 108 and the first permeation tank 101, and a third electric three-way valve 603 is provided between the water outlet check valve 505 and the first permeation tank 101. The three interfaces on the third electric three-way valve 603 are numbered 1, 2, and 3 respectively. The third electric three-way valve Port 1 of 603 is connected to the water outlet end of the water outlet check valve 505, port 2 of the third electric three-way valve 603 is connected to the first permeation tank 101, port 3 of the third electric three-way valve 603 is connected to the water inlet end of the second flushing high-pressure pump 605, and the water outlet end of the second flushing high-pressure pump 605 is connected to port 3 of the first electric three-way valve 601. When the permeation pure water equipment is working normally, port 1 and port 2 of the first electric three-way valve 601 are connected, port 3 of the first electric three-way valve 601 is closed, port 1 and port 2 of the second electric three-way valve 602 are connected, port 3 of the second electric three-way valve 602 is closed, port 1 and port 2 of the third electric three-way valve 603 are connected, and port 3 of the third electric three-way valve 603 is closed. After working for a period of time, the reverse osmosis membrane 107 is prone to blockage, so that the No. 1 port and the No. 3 port of the first electric three-way valve 601 are connected, and the No. 2 port of the first electric three-way valve 601 is closed, so that the No. 1 port and the No. 3 port of the second electric three-way valve 602 are connected, and the No. 2 port of the second electric three-way valve 602 is closed, so that the No. 1 port and the No. 3 port of the third electric three-way valve 603 are connected, and the No. 2 port of the third electric three-way valve 603 is closed, and the pure water in the pure water tank 109 is pumped into the reverse osmosis membrane 107 in the second permeation tank 108 by the first flushing high-pressure pump 604, and the reverse osmosis membrane 107 in the second permeation tank 108 is flushed from the inside to the outside, so as to clear the reverse osmosis membrane 107 in the second permeation tank 108.The second flushing high-pressure pump 605 pumps the water outside the reverse osmosis membrane 107 in the second permeation tank 108 into the inside of the reverse osmosis membrane 107 in the first permeation tank 101, flushing and unblocking the reverse osmosis membrane 107 in the first permeation tank 101 from the inside out, and the water flushing the reverse osmosis membrane 107 in the first permeation tank 101 is discharged from the drain port 104 of the first permeation tank 101.

[0037] The above embodiment discloses a double osmosis pure water device. When the device is working normally, port 1 and port 2 of the first electric three-way valve 601 are connected, port 3 of the first electric three-way valve 601 is closed, port 1 and port 2 of the second electric three-way valve 602 are connected, port 3 of the second electric three-way valve 602 is closed, port 1 and port 2 of the third electric three-way valve 603 are connected, port 3 of the third electric three-way valve 603 is closed, the first water pump 502 pumps raw water into the first osmosis tank 101, and the filtered water is filtered by the reverse osmosis membrane 107 in the first osmosis tank 101, and the filtered water is pressurized and pumped into the second The pure water in the permeation tank 108 is filtered by the reverse osmosis membrane 107 in the second permeation tank 108 and then passed into the pure water tank 109 for storage through the water outlet 103 of the second permeation tank 108. When the raw water is subjected to reverse osmosis filtration, the driving motor 410 drives the driving ring 407 to rotate on the fixed ring 406 through the gear 411 and the gear block 409. When the second magnetic block 408 on the driving ring 407 rotates, it drives the first magnetic block 405 in the permeation tank to rotate. The first magnetic block 405 drives the first rotating ring 401 together with the stirring bar 402 and the second rotating ring 403 to rotate, so as to stir the raw water in the permeation tank and accelerate the high-concentration raw water. The mixing speed between the newly introduced low-concentration raw water and the reverse osmosis rate is increased. After working for a period of time, the reverse osmosis membrane 107 is prone to blockage. The No. 1 port and the No. 3 port of the first electric three-way valve 601 are connected, and the No. 2 port of the first electric three-way valve 601 is closed. The No. 1 port and the No. 3 port of the second electric three-way valve 602 are connected, and the No. 2 port of the second electric three-way valve 602 is closed. The No. 1 port and the No. 3 port of the third electric three-way valve 603 are connected, and the No. 2 port of the third electric three-way valve 603 is closed. The pure water in the pure water tank 109 is pumped into the reverse osmosis membrane 107 in the second permeation tank 108 by the first flushing high-pressure pump 604. 07, the reverse osmosis membrane 107 in the second permeation tank 108 is flushed from the inside to the outside, and the reverse osmosis membrane 107 in the second permeation tank 108 is unblocked. The second flushing high-pressure pump 605 pumps the water on the outside of the reverse osmosis membrane 107 in the second permeation tank 108 into the inside of the reverse osmosis membrane 107 in the first permeation tank 101, and the reverse osmosis membrane 107 in the first permeation tank 101 is flushed and unblocked from the inside to the outside. The water flushing the reverse osmosis membrane 107 in the first permeation tank 101 is discharged from the drain port 104 of the first permeation tank 101, and the reverse osmosis membranes 107 in the two permeation tanks are flushed and unblocked to maintain the reverse osmosis efficiency.

[0038] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A double osmosis pure water device, comprising two osmosis tanks, the two osmosis tanks being a first osmosis tank (101) and a second osmosis tank (108), characterized in that: The upper end of the permeation tank is connected to a tank cover (105) via a locking structure, and the tank cover (105) is connected to a reverse osmosis membrane (107) via a quick-release structure. A positioning groove (106) matching the reverse osmosis membrane (107) is provided at the bottom of the permeation tank. A water outlet (103) is provided at the lower end of the permeation tank at a position corresponding to the positioning groove (106). A water inlet (102) and a water outlet (104) are provided on the outer side of the permeation tank. A stirring structure is provided on the permeation tank. The water inlet (102) is connected to the water outlet of the first water pump (502), the water outlet (103) of the first permeation tank (101) is connected to the water inlet of the second water pump (503), the water outlet of the second water pump (503) is connected to the water inlet (102) of the second permeation tank (108), the water outlet (103) of the second permeation tank (108) is connected to the pure water tank (109), and the drain outlet (104) of the second permeation tank (108) is connected to the first permeation tank (101); The stirring structure comprises a first rotating ring (401) rotatably connected to the inner bottom surface of the permeation tank, a plurality of stirring bars (402) are arranged in a vertical circumferential array on the first rotating ring (401), the upper ends of the plurality of stirring bars (402) are all connected to a second rotating ring (403), a plurality of guide wheels (404) are arranged in a circumferential array on the second rotating ring (403), the guide wheels (404) are rotatably connected to the second rotating ring (403), a first magnetic block (405) is connected to the stirring bars (402), and a stirring drive assembly is arranged on the outer side of the permeation tank; The stirring drive assembly comprises a fixed ring (406) connected to the outside of the permeation tank, a driving ring (407) being rotatably connected to the fixed ring (406), a plurality of second magnetic blocks (408) being provided on the driving ring (407), the second magnetic blocks (408) corresponding one-to-one to the first magnetic blocks (405), a circle of gear blocks (409) being provided on the outside of the driving ring (407), a driving motor (410) being connected to the fixed ring (406), a gear (411) being connected to the output end of the driving motor (410), and the gear (411) being meshed with the circle of gear blocks (409).

2. A double osmosis pure water device according to claim 1, characterized in that: The quick-release structure comprises a mounting groove (202) arranged on the tank cover (105), a limiting groove (203) being arranged on the mounting groove (202), a limiting block (201) being connected to the reverse osmosis membrane (107), the limiting block (201) being slidably arranged in the limiting groove (203), a rotating ring (204) being rotatably connected to the outside of the mounting groove (202), a mounting opening (205) being arranged on the rotating ring (204) at a position corresponding to the limiting groove (203), a W-shaped elastic sheet (206) being arranged in the mounting opening (205), and two ends of the elastic sheet (206) being respectively fixed to the outside of the rotating ring (204).

3. A double osmosis pure water device according to claim 2, characterized in that: A circle of elastic sheet accommodating grooves (207) are provided on the outer side of the installation groove (202) at a position corresponding to the elastic sheet (206).

4. A double osmosis pure water device according to claim 3, characterized in that: Four guide grooves (305) are arranged in a circumferential array on the upper end of the permeation tank, and four guide plates (306) are connected to the tank cover (105), with the guide grooves (305) corresponding to the guide plates (306) one by one.

5. A double osmosis pure water device according to claim 1, characterized in that: The locking structure comprises a U-shaped extension block (301) connected to the tank cover (105); a T-shaped stud (302) is hingedly connected to a position on the permeation tank that is rotated to correspond to the U-shaped extension block (301); a nut (303) is threadedly connected to the T-shaped stud (302); and a force application rod (304) is connected to the nut (303).

6. A double osmosis pure water device according to claim 1, characterized in that: A first water inlet check valve (501) is provided between the first water pump (502) and the water inlet (102) of the first permeation tank (101); a second water inlet check valve (504) is provided between the second water pump (503) and the water inlet (102) of the second permeation tank (108); a first electric three-way valve (601) is provided between the water outlet (103) of the first permeation tank (101) and the second water pump (503); the three interfaces on the first electric three-way valve (601) are numbered as port 1, port 2, and port 3, respectively; Port 1 of an electric three-way valve (601) is connected to the water outlet (103) of the first permeation tank (101), port 2 of the first electric three-way valve (601) is connected to the water inlet of the second water pump (503), a second electric three-way valve (602) is provided between the water outlet (103) of the second permeation tank (108) and the pure water tank (109), three interfaces on the second electric three-way valve (602) are numbered as port 1, port 2, and port 3, respectively, port 1 of the second electric three-way valve (602) is connected to the water outlet (103) of the second permeation tank (108), and port 2 of the second electric three-way valve (602) is connected to the water inlet of the second water pump (503). ), port 2 of the second electric three-way valve (602) is connected to the water inlet of the pure water tank (109), port 3 of the second electric three-way valve (602) is connected to the water outlet of the first flushing high-pressure pump (604), the water inlet of the first flushing high-pressure pump (604) is connected to the pure water tank (109), a water outlet check valve (505) is provided between the drain port (104) of the second permeation tank (108) and the first permeation tank (101), and a water outlet check valve (505) is provided between the water outlet check valve (505) and the first permeation tank (101). A third electric three-way valve (603) is provided, and the three interfaces on the third electric three-way valve (603) are numbered 1, 2, and 3 respectively; port 1 of the third electric three-way valve (603) is connected to the water outlet of the water outlet check valve (505); port 2 of the third electric three-way valve (603) is connected to the first permeation tank (101); port 3 of the third electric three-way valve (603) is connected to the water inlet of the second flushing high-pressure pump (605); and the water outlet of the second flushing high-pressure pump (605) is connected to port 3 of the first electric three-way valve (601).

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