A backwash reverse osmosis water purification device

Abstract

The application relates to the technical field of wastewater treatment, in particular to a reverse osmosis water purification treatment device for backwashing wastewater, which comprises a fixing frame, a water purification tank and a circulating tank, supporting frames are arranged on the two sides of the top of the fixing frame, and the water purification tank is arranged between the opposite sides of the two supporting frames. A plurality of spoiler plates arranged in the washing frame accelerate the flow efficiency of the cleaning agent on the surface of the reverse osmosis membrane, thereby improving the washing effect on the stains on the surface of the reverse osmosis membrane, avoiding the surface of the reverse osmosis membrane being blocked by stains and affecting the water purification effect of the wastewater, and further improving the washing effect on the stains on the surface of the reverse osmosis membrane and the purification efficiency of the wastewater by the cooperation of the spoiler plates and the air blowing port arranged inside, the air pump and the air guide pipe, the air is pumped into the inside of the air blowing frame, then the surface of the reverse osmosis membrane is blown by the air flow channel and the air blowing port, the washing effect on the stains on the surface of the reverse osmosis membrane and the purification efficiency of the wastewater are further improved, and the problem that the current cleaning agent soaking and circulating flow have poor washing effect on the stains on the surface of the reverse osmosis membrane is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a reverse osmosis water purification device for backwashing wastewater. Background Art

[0002] Reverse osmosis is a membrane separation technology that uses pressure as the driving force by virtue of the function of selective permeable (semi-permeable) membranes. When the pressure applied to the system is greater than the osmotic pressure of the influent solution, water molecules continuously penetrate the membrane, flow through the water production channel into the central tube, and then flow out at one end. Impurities in the water, such as ions, organic matter, bacteria, viruses, etc., are retained on the inlet side of the membrane and then flow out at the concentrated water outlet, thereby achieving the purpose of separation and purification.

[0003] Many industries rely on pure water, ultrapure water, and other deionized water for cleaning or as a raw material. Reverse osmosis water purification equipment used to produce deionized water operates by separating substances from water under a semipermeable membrane, which is unable to pass through the solution under osmotic pressure. Because the reverse osmosis membrane has a very small pore size, it can filter out inorganic salts, bacteria, microorganisms, viruses, colloids, organic matter, and other substances in the water.

[0004] At present, in reverse osmosis water purification treatment devices, the surface of the reverse osmosis membrane is usually flushed by soaking and circulating the cleaning agent to flush the stains on the surface of the reverse osmosis membrane. This flushing method cannot effectively clean the stains on the surface of the reverse osmosis membrane, causing the stains to clog the inside of the reverse osmosis membrane, thereby reducing the water purification effect of the reverse osmosis membrane on wastewater.

[0005] To this end, we proposed a reverse osmosis water purification device for backwash wastewater. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a reverse osmosis water purification treatment device for backwashing wastewater, which is used to improve the flushing effect of stains on the surface of the reverse osmosis membrane and prevent the surface of the reverse osmosis membrane from being blocked by stains and affecting the water purification effect of the wastewater.

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: a kind of reverse osmosis water purification treatment device of backwashing wastewater, including fixed frame, water purification tank and circulating tank, the both sides of the top of the fixed frame are provided with support frame, and the opposite side between the two support frames is provided with water purification tank, the side of the top of the fixed frame is also provided with circulating tank, and the inside of circulating tank is communicated with the inside of water purification tank, the inside of the water purification tank is provided with reverse osmosis component, the reverse osmosis component includes mounting bracket, the mounting bracket is arranged in the inside of water purification tank, and the peripheral surface of mounting bracket is provided with reverse osmosis membrane, the inside of the mounting bracket is also provided with center tube, and the surface of center tube is provided with water inlet frame between reverse osmosis membrane, the inside of the water purification tank is provided with flushing mechanism, and the bottom of water purification tank is provided with wastewater discharge pipe;

[0008] The flushing mechanism includes movable frame, which is slidably arranged in the inside of the water purification tank, and the inside of the movable frame is in sliding contact with the surface of the mounting bracket, the inside of the movable frame is provided with a movable slot, and the inside of the movable slot is provided with a flushing frame, the inside of the flushing frame is provided with a plurality of spoilers, and the plurality of spoilers are arranged at equal angles about the central axis of the flushing frame, one side of the flushing frame is provided with a rotating slot, and the inside of the rotating slot is provided with a blowing frame, the surface of the blowing frame is provided with a sealing ring, and the surface of the sealing ring is rotatably connected with the inside of the rotating slot, the inside of the flushing frame is provided with an air flow channel, and the inside of the air flow channel is communicated with the blowing frame, the inside of the plurality of spoilers is provided with a blowing port, and the inside of the plurality of blowing ports is communicated with the inside of the air flow channel.

[0009] Preferably, the water inlet end of the center tube is connected with the first circulating liquid inlet pipe and the water inlet pipe through the three-way joint respectively, and the water outlet end of the center tube is connected with the first circulating liquid outlet pipe and the water outlet pipe through the three-way joint respectively, one end of the first circulating liquid inlet pipe and the first circulating liquid outlet pipe is communicated with the inside of the circulating tank, the second circulating liquid inlet pipe and the second circulating liquid outlet pipe are arranged on the both sides of the bottom of the water purification tank respectively, and one end of the second circulating liquid inlet pipe and the second circulating liquid outlet pipe is communicated with the inside of the circulating tank.

[0010] Preferably, one side of the support frame is provided with a wastewater inlet pipe, and one end of the wastewater inlet pipe is communicated with the inside of the water purification tank, the other end of the wastewater inlet pipe is provided with a water supply pump, and the water inlet end of the water supply pump is provided with a water suction pipe.

[0011] Preferably, one side of the support frame is also provided with a filter assembly, the filter assembly includes a filter box, the filter box is arranged on one side of the support frame, and the bottom end of the water suction pipe extends into the inside of the filter box, the inside of the filter box is provided with a first filter frame, and the inside of the first filter frame is provided with a coarse filter screen, the inside of the filter box is rotatably provided with a first scraping frame, and the side surface of the first scraping frame is in sliding contact with the surface of the first filter frame.

[0012] Preferably, the bottom end of the water suction pipe is also provided with a second filter frame, and the inside of the second filter frame is provided with a fine filter screen, and the inside of the second filter frame is rotatably provided with a second material scraping frame.

[0013] Preferably, the inside of the second material scraping frame is provided with a rotating rod, the top end of the rotating rod is rotatably connected with the inside of the water suction pipe, and the surface of the rotating rod located in the water suction pipe is provided with a fan turbine, and one side of the filter box is also provided with a water feeding pipe.

[0014] Preferably, the peripheral surface of the flushing frame is provided with a gear ring, and the gear ring is rotatably arranged in the inside of the movable groove, and the inside of the movable frame is also provided with a servo motor, and the output shaft of the servo motor is provided with a driving gear, one side of the driving gear extends to the inside of the movable groove, and the surface of the driving gear is engaged with the surface of the gear ring.

[0015] Preferably, the inside of the movable frame is also provided with an air pump, and the air outlet end of the air pump is communicated with the inside of the air blowing frame through an air guide pipe.

[0016] Preferably, the inside of the water purification tank is rotatably provided with a lead screw, and one end of the lead screw is threadedly connected with the inside of the movable frame, and one side of the supporting frame is provided with a rotating motor, and the output shaft of the rotating motor is connected with one end of the lead screw through a shaft coupling.

[0017] Preferably, both sides of the bottom of the movable frame are provided with sliding grooves, and the inside of each sliding groove is rotatably provided with a ball, and both sides of the inner wall of the water purification tank are provided with sliding blocks, and one side of each sliding block is provided with an arc-shaped groove matched with the ball.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. By arranging the flushing mechanism in the inside of the water purification tank, the movable frame in the flushing mechanism is reciprocally displaced in the inside of the water purification tank, and the rotating flushing frame in the inside of the movable frame is arranged, and the flow efficiency of the cleaning agent on the surface of the reverse osmosis membrane is accelerated by the several turbulence plates arranged in the inside of the flushing frame, so as to improve the flushing effect of the dirt on the surface of the reverse osmosis membrane, avoid the surface of the reverse osmosis membrane being blocked by the dirt to affect the water purification effect of the wastewater, and the air is pumped into the inside of the air blowing frame by the air pump and the air guide pipe through the cooperation of the turbulence plates and the air blowing port arranged in the inside, and then the surface of the reverse osmosis membrane is blown by the air flow channel and the air blowing port, so as to further improve the flushing effect of the dirt on the surface of the reverse osmosis membrane, thereby improving the purification efficiency of the wastewater, and effectively solving the problem of poor flushing effect of the cleaning agent soaking and circulating flow on the dirt on the surface of the reverse osmosis membrane.

[0020] 2、By using the first filter frame inside the coarse filter screen to filter the wastewater for the first time, and using the second filter frame inside the fine filter screen to further filter the impurities in the wastewater, the impurities in the wastewater are filtered by the first filter frame and the second filter frame, avoiding the particulate impurities in the wastewater from entering the inside of the water purification tank to damage the reverse osmosis membrane, and improving the service life of the reverse osmosis membrane in the wastewater treatment process.

[0021] 3、By using two water purification tanks to purify the wastewater, the two water purification tanks are used alternately to realize continuous and uninterrupted water purification treatment of the wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic view of the structure of a reverse flushing wastewater reverse osmosis water purification device according to an embodiment of the present application.

[0023] Figure 2 It is a schematic view of the structure of a water purification tank and a circulating tank according to an embodiment of the present application.

[0024] Figure 3 It is a schematic view of the internal structure of a filter frame according to an embodiment of the present application.

[0025] Figure 4 It is a schematic view of the structure of a reverse osmosis assembly and a movable frame according to an embodiment of the present application.

[0026] Figure 5 It is a schematic view of the structure of a movable frame and a flushing frame according to an embodiment of the present application.

[0027] Figure 6 It is a schematic view of the structure of a flushing frame and a blowing frame according to an embodiment of the present application.

[0028] In the figure, 10 is a fixed frame; 20 is a water purification tank; 30 is a circulating tank; 40 is a support frame; 50 is a wastewater discharge pipe; 60 is a first circulating liquid inlet pipe; 70 is a water inlet pipe; 80 is a first circulating liquid outlet pipe; 90 is a water outlet pipe; 100 is a second circulating liquid inlet pipe; 110 is a second circulating liquid outlet pipe; 11 is a mounting frame; 12 is a reverse osmosis membrane; 13 is a center pipe; 14 is a water inlet frame; 21 is a wastewater inlet pipe; 22 is a water feeding pump; 23 is a water suction pipe; 24 is a filter box; 25 is a first filter frame; 26 is a first scraping frame; 27 is a second filter frame; 28 is a second scraping frame; 29 is a rotating rod; 210 is a fan turbine; 211 is a water feeding pipe; 31 is a movable frame; 32 is a movable groove; 33 is a flushing frame; 34 is a spoiler; 35 is a gear ring; 36 is a servo motor; 37 is a driving gear; 41 is a rotating groove; 42 is a blowing frame; 43 is a sealing ring; 44 is an air flow channel; 45 is a blowing port; 46 is an air pump; 47 is a lead screw; 48 is a rotating motor; 49 is a ball bearing; 410 is a sliding groove; 411 is a sliding block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0030] Embodiment 1

[0031] Please refer to Figures 1 to 6 As shown in the figure, a reverse osmosis water purification treatment device for backwashing wastewater includes a fixing frame 10, a water purification tank 20 and a circulating tank 30. The fixing frame 10 is provided with a support frame 40 on each side of the top, and the water purification tank 20 is arranged between the opposite sides of the two support frames 40. Two water purification tanks 20 are arranged between the support frames 40, and the two water purification tanks 20 are arranged in an up-down manner. The two water purification tanks 20 are used alternately to purify wastewater, so that continuous and uninterrupted water purification treatment of wastewater is realized.

[0032] The inside of the water purification tank 20 is provided with a reverse osmosis assembly. The reverse osmosis assembly includes a mounting frame 11 arranged in the inside of the water purification tank 20, and the peripheral surface of the mounting frame 11 is provided with a reverse osmosis membrane 12. The inside of the mounting frame 11 is further provided with a center pipe 13, and the surface of the center pipe 13 is provided with a water inlet frame 14 between the center pipe 13 and the reverse osmosis membrane 12. The inside of the water inlet frame 14 is provided with a water inlet flow channel, and the surface of the center pipe 13 is provided with a through hole. The inside of the water inlet flow channel communicates with the inside of the center pipe 13 through the through hole. The inside of the water purification tank 20 is provided with a flushing mechanism. The surface of the reverse osmosis assembly is flushed by the flushing mechanism when the pure water flow is lower than the standard value, so that the stains on the surface of the reverse osmosis membrane 12 are flushed, thereby improving the purification treatment effect of the reverse osmosis membrane 12 on wastewater. The bottom of the water purification tank 20 is provided with a wastewater discharge pipe 50, and the inside of the wastewater discharge pipe 50 communicates with the inside of the water purification tank 20.

[0033] The top of the fixing frame 10 is further provided with a circulating tank 30, and the inside of the circulating tank 30 communicates with the inside of the water purification tank 20. The inside of the water purification tank 20 is supplied with a cleaning agent through the circulating tank 30, so that the reverse osmosis assembly in the inside of the water purification tank 20 is cleaned, thereby enabling the reverse osmosis assembly to continuously purify wastewater.

[0034] The water inlet end of the center pipe 13 is connected with the first circulating liquid inlet pipe 60 and the water inlet pipe 70 through a tee joint respectively, and the water outlet end of the center pipe 13 is connected with the first circulating liquid outlet pipe 80 and the water outlet pipe 90 through a tee joint respectively, one end of the first circulating liquid inlet pipe 60 and the first circulating liquid outlet pipe 80 is communicated with the inside of the circulating tank 30, the second circulating liquid inlet pipe 100 and the second circulating liquid outlet pipe 110 are arranged on both sides of the bottom of the clean water tank 20 respectively, and one end of the second circulating liquid inlet pipe 100 and the second circulating liquid outlet pipe 110 is communicated with the inside of the circulating tank 30, the communication between the circulating tank 30, the center pipe 13 and the inside of the clean water tank 20 is realized through the first circulating liquid inlet pipe 60, the first circulating liquid outlet pipe 80, the second circulating liquid inlet pipe 100 and the second circulating liquid outlet pipe 110, so that the cleaning agent is respectively introduced into the inside of the center pipe 13 and the clean water tank 20, the cleaning agent is circulated in the inside of the center pipe 13 and the clean water tank 20, the dirt on the inner and outer surfaces of the reverse osmosis membrane 12 is washed, the surface of the reverse osmosis membrane 12 is not blocked by dirt after the reverse osmosis membrane 12 is used for a long time, and the treatment efficiency of the reverse osmosis membrane 12 on the wastewater is improved.

[0035] The support frame 40 is provided with a wastewater inlet pipe 21 on one side, one end of the wastewater inlet pipe 21 is communicated with the inside of the clean water tank 20, the other end of the wastewater inlet pipe 21 is provided with a water sending pump 22, the water inlet end of the water sending pump 22 is provided with a water suction pipe 23, the support frame 40 is further provided with a filter assembly on one side, the filter assembly comprises a filter box 24, the filter box 24 is arranged on one side of the support frame 40, and the bottom end of the water suction pipe 23 extends into the inside of the filter box 24, the inside of the filter box 24 is provided with a first filter frame 25, the inside of the first filter frame 25 is provided with a coarse filter screen, the inside of the filter box 24 is rotatably provided with a first scraping frame 26, the side surface of the first scraping frame 26 is in sliding contact with the surface of the first filter frame 25, the bottom end of the water suction pipe 23 is further provided with a second filter frame 27, the inside of the second filter frame 27 is provided with a fine filter screen, the inside of the second filter frame 27 is rotatably provided with a second scraping frame 28, the inside of the second scraping frame 28 is provided with a rotating rod 29, the top end of the rotating rod 29 is rotatably connected with the inside of the water suction pipe 23, the surface of the rotating rod 29 located in the water suction pipe 23 is provided with a fan turbine 210, and the filter box 24 is further provided with a water sending pipe 211 on one side.

[0036] It needs to be explained that the wastewater is sent to the inside of the filter box 24 through the water delivery pipe 211, and the wastewater is firstly filtered by the coarse filter screen in the inside of the first filter frame 25, and at the same time, the first material scraping frame 26 is controlled by the motor to rotate in the inside of the first filter frame 25, and the impurities attached to the coarse filter screen are scraped by the first material scraping frame 26 to ensure the filtering efficiency of the coarse filter screen on the impurities in the wastewater, and then the wastewater in the inside of the filter box 24 is pumped into the inside of the wastewater inlet pipe 21 by the water pump 22 and the water suction pipe 23, and the wastewater in the inside of the filter box 24 passes through the second filter frame 27 into the inside of the water suction pipe 23, and the impurities in the wastewater are further filtered by the fine filter screen in the inside of the second filter frame 27, and at the same time, the water flow in the inside of the water suction pipe 23 drives the fan turbine 210 to rotate, and the second material scraping frame 28 is driven by the rotating rod 29 to rotate in the inside of the second filter frame 27 to avoid the inside of the fine filter screen being blocked by the impurities, and the impurities in the wastewater are filtered by the first filter frame 25 and the second filter frame 27 to avoid the particulate impurities in the wastewater entering the inside of the water purification tank 20 to damage the reverse osmosis membrane 12, and the service life of the reverse osmosis membrane 12 in the process of water purification is improved.

[0037] The flushing mechanism comprises a movable frame 31 which is slidingly arranged in the inside of the water purification tank 20 and in sliding contact with the surface of the mounting frame 11, and the inside of the movable frame 31 is provided with a movable groove 32, and the inside of the movable groove 32 is provided with a flushing frame 33, and the inside of the flushing frame 33 is provided with a plurality of spoiler plates 34 which are arranged at equal angles about the central axis of the flushing frame 33, and the peripheral surface of the flushing frame 33 is provided with a gear ring 35 which is rotatably arranged in the inside of the movable groove 32, and the inside of the movable frame 31 is further provided with a servo motor 36, and the output shaft of the servo motor 36 is provided with a drive gear 37 which extends to the inside of the movable groove 32 on one side, and the surface of the drive gear 37 is in meshing transmission with the surface of the gear ring 35, the drive gear 37 is driven to rotate by the servo motor 36, the drive gear 37 drives the meshing gear ring 35 to rotate in the inside of the movable groove 32, so that the flushing frame 33 rotates in the inside of the movable groove 32, and the plurality of spoiler plates 34 in the inside of the flushing frame 33 drive the cleaning agent to rotate on the surface of the reverse osmosis membrane 12, thereby improving the flushing effect of the cleaning agent on the stains on the surface of the reverse osmosis membrane 12.

[0038] Further, one side of the flushing frame 33 is provided with a rotating groove 41, and the inside of the rotating groove 41 is provided with a blowing frame 42, the surface of the blowing frame 42 is provided with a sealing ring 43, and the surface of the sealing ring 43 is rotatably connected with the inside of the rotating groove 41, the inside of the flushing frame 33 is provided with an air flow channel 44, and the inside of the air flow channel 44 is in communication with the inside of the blowing frame 42, the inside of the plurality of spoiler plates 34 is provided with a blowing port 45, and the inside of the plurality of blowing ports 45 is in communication with the inside of the air flow channel 44, the inside of the movable frame 31 is further provided with an air pump 46, and the air outlet end of the air pump 46 is in communication with the inside of the blowing frame 42 through the air guide pipe, wherein one side of the blowing frame 42 is connected with the inside of the movable frame 31, by positioning one side of the blowing frame 42, when the surface of the reverse osmosis membrane 12 is flushed by the flushing frame 33, air is pumped into the inside of the blowing frame 42 by the air pump 46 and the air guide pipe, then the surface of the reverse osmosis membrane 12 is blown by the air flow channel 44 and the blowing port 45, further improving the flushing effect of the dirt on the surface of the reverse osmosis membrane 12, thereby improving the purification efficiency of the wastewater.

[0039] Further, the inside of the water purification tank 20 is rotatably provided with a lead screw 47, and one end of the lead screw 47 is threadedly connected with the inside of the movable frame 31, one side of the support frame 40 is provided with a rotating motor 48, and the output shaft of the rotating motor 48 is connected with one end of the lead screw 47 through a shaft coupling, both sides of the bottom of the movable frame 31 are provided with sliding grooves 410, and both inside of the two sliding grooves 410 are rotatably provided with rolling balls 49, both sides of the inner wall of the water purification tank 20 are provided with sliding blocks 411, and one side of both sliding blocks 411 is provided with an arc-shaped groove matched with the rolling ball 49, it should be noted that when the flushing mechanism is started to flush the surface of the reverse osmosis membrane 12, the output shaft of the rotating motor 48 drives the lead screw 47 to rotate inside the water purification tank 20, the lead screw 47 drives the movable frame 31 to slide inside the water purification tank 20, the movable frame 31 is supported by the two rolling balls 49 sliding on one side of the sliding block 411 during displacement, thereby ensuring the stability of the flushing mechanism in flushing the surface of the reverse osmosis membrane 12.

[0040] Embodiment 2

[0041] Further, a method for using the reverse flushing wastewater reverse osmosis water purification treatment device is also disclosed in this embodiment, which specifically includes the following steps:

[0042] Step 1: the waste water is sent into the inside of the filter box 24 through the water sending pipe 211, and the waste water is firstly filtered through the coarse filter screen in the inside of the first filter frame 25, and the first material scraping frame 26 is rotated in the inside of the first filter frame 25 through the motor control, the impurities attached to the coarse filter screen are scraped off by the first material scraping frame 26, then the waste water in the inside of the filter box 24 is pumped into the inside of the waste water inlet pipe 21 through the water sending pump 22 and the water pumping pipe 23, the waste water in the inside of the filter box 24 passes through the second filter frame 27 into the inside of the water pumping pipe 23, the impurities in the waste water are further filtered through the fine filter screen in the inside of the second filter frame 27, and the water flow in the inside of the water pumping pipe 23 drives the fan turbine 210 to rotate, the second material scraping frame 28 is rotated in the inside of the second filter frame 27 through the rotating rod 29, and the impurities attached to the fine filter screen are scraped off by the second material scraping frame 28, and the impurities in the waste water are filtered through the first filter frame 25 and the second filter frame 27;

[0043] Step 2: the waste water in the inside of the clean water tank 20 passes through the reverse osmosis membrane 12 under high pressure, enters the center pipe 13 through the water inlet flow channel in the inside of the water inlet frame 14, and finally the pure water is sent out through the water outlet pipe 90 connected to the water outlet end of the center pipe 13;

[0044] Step 3: the surface of the reverse osmosis assembly is washed by the washing mechanism when the pure water flow is lower than the standard value through real-time monitoring of the pure water flow, the circulation tank 30, the center pipe 13 and the inside of the clean water tank 20 are connected through the first circulating liquid inlet pipe 60, the first circulating liquid outlet pipe 80, the second circulating liquid inlet pipe 100 and the second circulating liquid outlet pipe 110, and the cleaning agent is respectively introduced into the inside of the center pipe 13 and the clean water tank 20, and the stains on the inner and outer surfaces of the reverse osmosis membrane 12 are washed by the circulation of the cleaning agent in the inside of the center pipe 13 and the clean water tank 20;

[0045] Step 4: the lead screw 47 is rotated in the inside of the clean water tank 20 through the output shaft of the rotating motor 48, the movable frame 31 is slid in the inside of the clean water tank 20 through the lead screw 47, the driving gear 37 is rotated through the servo motor 36, the gear ring 35 engaged with the driving gear 37 is rotated in the inside of the movable groove 32, so that the washing frame 33 is rotated in the inside of the movable groove 32, the cleaning agent is rotated on the surface of the reverse osmosis membrane 12 through the plurality of spoiler plates 34 in the inside of the washing frame 33, the flow rate of the cleaning agent on the surface of the reverse osmosis membrane 12 is improved, the air is pumped into the inside of the air blowing frame 42 through the air pump 46 and the air guide pipe, and then the surface of the reverse osmosis membrane 12 is blown through the air flow channel 44 and the air blowing port 45, and the stains on the surface of the reverse osmosis membrane 12 are washed.

[0046] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0047] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify different entities or actions from each other, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "containing", or any other similar term are intended to encompass non-exclusive inclusions, such that a process, method, article, or apparatus that comprises a list of elements does not necessarily include only those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, combinations, and variations can be undertaken by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A reverse osmosis water purification device for backwash wastewater, comprising a fixed frame (10), a clean water tank (20) and a circulation tank (30), wherein support frames (40) are provided on both sides of the top of the fixed frame (10), and the clean water tank (20) is provided between the two opposing sides of the support frames (40), and a circulation tank (30) is further provided on one side of the top of the fixed frame (10), and the interior of the circulation tank (30) is communicated with the interior of the clean water tank (20), characterized in that: A reverse osmosis assembly is provided inside the clean water tank (20), and the reverse osmosis assembly includes a mounting frame (11), the mounting frame (11) is provided inside the clean water tank (20), and a reverse osmosis membrane (12) is provided on the circumference of the mounting frame (11), a central tube (13) is further provided inside the mounting frame (11), and a water inlet frame (14) is provided between the surface of the central tube (13) and the reverse osmosis membrane (12), a flushing mechanism is provided inside the clean water tank (20), and a wastewater discharge pipe (50) is provided at the bottom of the clean water tank (20); The flushing mechanism comprises a movable frame (31), the movable frame (31) is located inside the clean water tank (20) and is slidably arranged, and the interior of the movable frame (31) is in sliding contact with the surface of the mounting frame (11), the interior of the movable frame (31) is provided with a movable groove (32), and the interior of the movable groove (32) is provided with a flushing frame (33), the interior of the flushing frame (33) is provided with a plurality of spoilers (34), and the plurality of spoilers (34) are distributed at equal angles with respect to the central axis of the flushing frame (33), and one side of the flushing frame (33) is provided with a plurality of spoilers (34). A rotating groove (41) is provided, and a blowing frame (42) is provided inside the rotating groove (41), a sealing ring (43) is provided on the surface of the blowing frame (42), and the surface of the sealing ring (43) is rotatably connected to the inside of the rotating groove (41), an air flow channel (44) is provided inside the flushing frame (33), and the inside of the air flow channel (44) is communicated with the blowing frame (42), and a plurality of the spoilers (34) are provided with blowing ports (45), and the insides of the plurality of blowing ports (45) are communicated with the inside of the air flow channel (44).

2. The reverse osmosis water purification device for backwash wastewater according to claim 1, characterized in that: The water inlet end of the central tube (13) is respectively connected to the first circulation liquid inlet pipe (60) and the water inlet pipe (70) through a tee, and the water outlet end of the central tube (13) is respectively connected to the first circulation liquid outlet pipe (80) and the water outlet pipe (90) through a tee, one end of each of the first circulation liquid inlet pipe (60) and the first circulation liquid outlet pipe (80) is communicated with the interior of the circulation tank (30), and a second circulation liquid inlet pipe (100) and a second circulation liquid outlet pipe (110) are respectively provided on both sides of the bottom of the clean water tank (20), and one end of each of the second circulation liquid inlet pipe (100) and the second circulation liquid outlet pipe (110) is communicated with the interior of the circulation tank (30).

3. The reverse osmosis water purification device for backwash wastewater according to claim 1, characterized in that: A wastewater inlet pipe (21) is provided on one side of the support frame (40), and one end of the wastewater inlet pipe (21) is communicated with the interior of the clean water tank (20), and a water supply pump (22) is provided at the other end of the wastewater inlet pipe (21), and a water pump (23) is provided at the water inlet end of the water supply pump (22).

4. The reverse osmosis water purification device for backwash wastewater according to claim 3, characterized in that: A filter assembly is further provided on one side of the support frame (40), and the filter assembly includes a filter box (24). The filter box (24) is provided on one side of the support frame (40), and the bottom end of the water suction pipe (23) extends to the interior of the filter box (24). A first filter frame (25) is provided inside the filter box (24), and a coarse filter screen is provided inside the first filter frame (25). A first scraper frame (26) is rotatably provided inside the filter box (24), and the side surface of the first scraper frame (26) is in sliding contact with the surface of the first filter frame (25).

5. The reverse osmosis water purification device for backwash wastewater according to claim 4, characterized in that: A second filter frame (27) is also provided at the bottom end of the water extraction pipe (23), and a fine filter screen is provided inside the second filter frame (27). A second scraper frame (28) is rotatably provided inside the second filter frame (27).

6. The reverse osmosis water purification device for backwash wastewater according to claim 5, characterized in that: A rotating rod (29) is provided inside the second scraper frame (28), the top end of the rotating rod (29) is rotatably connected to the inside of the water pumping pipe (23), and a fan turbine (210) is provided on the surface of the rotating rod (29) located on the water pumping pipe (23), and a water supply pipe (211) is also provided on one side of the filter box (24).

7. The reverse osmosis water purification device for backwash wastewater according to claim 1, characterized in that: The circumferential surface of the flushing frame (33) is provided with a gear ring (35), and the gear ring (35) is located inside the movable groove (32) and is rotatably arranged. A servo motor (36) is also provided inside the movable frame (31), and the output shaft of the servo motor (36) is provided with a driving gear (37). One side of the driving gear (37) extends to the inside of the movable groove (32), and the surface of the driving gear (37) is meshed with the surface of the gear ring (35) for transmission.

8. The reverse osmosis water purification device for backwash wastewater according to claim 1, characterized in that: An air pump (46) is also provided inside the movable frame (31), and an air outlet end of the air pump (46) is communicated with the interior of the air blowing frame (42) through an air guide pipe.

9. The reverse osmosis water purification device for backwash wastewater according to claim 1, characterized in that: A screw rod (47) is provided for rotation inside the water purification tank (20), and one end of the screw rod (47) is connected to the internal thread of the movable frame (31). A rotating motor (48) is provided on one side of the support frame (40), and the output shaft of the rotating motor (48) is connected to one end of the screw rod (47) through a coupling.

10. The reverse osmosis water purification device for backwash wastewater according to claim 1, characterized in that: Both sides of the bottom of the movable frame (31) are provided with slide grooves (410), and balls (49) are rotatably provided inside the two slide grooves (410). Both sides of the inner wall of the clean water tank (20) are provided with sliders (411), and one side of the two sliders (411) is provided with an arc groove that matches the balls (49).

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