A reverse osmosis sewage filtering and purifying treatment device

Abstract

The application discloses a reverse osmosis sewage filtering and purifying treatment device and particularly relates to the technical field of sewage treatment, which comprises a main flow pipeline and an auxiliary flow pipeline, the inside of the main flow pipeline and the auxiliary flow pipeline is provided with a bending cavity in the shape of "H", the middle part of the bending cavity is provided with a reverse osmosis membrane assembly, the bottom of the main flow pipeline and the auxiliary flow pipeline is detachably connected with a pair of cleaning cover plates, the cleaning cover plates are located below the side of the reverse osmosis membrane assembly, one end of the main flow pipeline is sequentially connected with a square tube pipeline and a flow guide cutting pipe, the flow guide cutting pipe is fixedly connected with one end of the auxiliary flow pipeline, the other end of the main flow pipeline is sequentially connected with a square tube pipeline two and a square tube pipeline three, the square tube pipeline three is fixedly connected with the other end of the auxiliary flow pipeline, and the square tube pipeline three is provided with a water outlet. The application solves the technical problem of how to realize automatic, energy-saving, fast and thorough cleaning of the reverse osmosis membrane under the condition of non-stop.

Description

TECHNICAL FIELD

[0001] The present application relates to sewage treatment technical field, more particularly, the present application relates to a kind of reverse osmosis sewage filtration purification treatment device. BACKGROUND

[0002] Reverse osmosis membrane is a kind of artificial semi-permeable membrane with certain characteristics, which is made of biological semi-permeable membrane, and is the core component of reverse osmosis technology. Reverse osmosis membrane is widely used in water purification in electronic, semiconductor, pharmaceutical, medical, food, beverage, liquor, chemical, environmental protection, metallurgy, textile and other industries. In the future, potential application fields include sewage treatment of power plant cooling circulating water, large-scale seawater desalination, brackish water desalination, large-scale municipal and industrial wastewater treatment, etc.

[0003] In the current technology, the reverse osmosis membrane water treatment is mostly realized in the pipeline, and the reverse osmosis membrane filtration effect depends on the blocking state, so the reverse osmosis membrane needs to be cleaned regularly. How to realize automatic, energy-saving, fast and thorough cleaning of reverse osmosis membrane under non-stop state is a technical problem to be solved at present. The existing technical means need to stop and disassemble the permeation membrane to realize cleaning, which is time-consuming and laborious, and also affects the water purification efficiency. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a kind of reverse osmosis sewage filtration purification treatment device, and the technical problems to be solved by the present application are: how to realize automatic, energy-saving, fast and thorough cleaning of reverse osmosis membrane under non-stop state.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a kind of reverse osmosis sewage filtration purification treatment device, including main flow pipeline and auxiliary flow pipeline, the inside of the main flow pipeline and the auxiliary flow pipeline is all provided with the bending cavity of "H" shape, and the middle part of the bending cavity is provided with reverse osmosis membrane assembly, the bottom of the main flow pipeline and auxiliary flow pipeline is detachably connected with a pair of cleaning cover plates, the cleaning cover plate is located at the lower side of the reverse osmosis membrane assembly, one end of the main flow pipeline is sequentially communicated with the square tube of the sky and the ground pipeline one and flow guide pipe, the flow guide pipe is fixedly communicated with one end of the auxiliary flow pipeline, the other end of the main flow pipeline is sequentially communicated with the square tube of the sky and the ground pipeline two and the square tube of the sky and the ground pipeline three, the square tube of the sky and the ground pipeline three is fixedly connected with the other end of the auxiliary flow pipeline, the square tube of the sky and the ground pipeline three is provided with drain, the square tube of the sky and the ground pipeline one, the square tube of the sky and the ground pipeline two, the flow guide pipe and the square tube of the sky and the ground pipeline three are all provided with valve;

[0006] Reciprocating linear mechanism, a pair of reciprocating linear mechanisms are arranged in the bending cavities of the main flow pipe and the auxiliary flow pipe, the reverse osmosis membrane assembly is located between the pair of reciprocating linear mechanisms, and each pair of reciprocating linear mechanisms arranged transversely is connected through a belt transmission mechanism, and the reciprocating linear mechanism comprises a lifting rod.

[0007] Rubber scraper, a rubber scraper is arranged in the bending cavities of the main flow pipe and the auxiliary flow pipe, and the rubber scraper is arranged on the reciprocating linear mechanism, the rubber scraper is used for scraping impurities on one side of the reverse osmosis membrane assembly, a pair of elastic telescopic assemblies are arranged on the rubber scraper, and the elastic telescopic assemblies are arranged on the lifting rod.

[0008] The elastic telescopic assembly comprises a T-shaped outer sleeve pipe movably penetrating the lifting rod, a T-shaped inner sleeve pipe slidably connected in the T-shaped outer sleeve pipe, a spring one sleeved on the T-shaped outer sleeve pipe, a spring two sleeved on the T-shaped outer sleeve pipe, and a base fixedly connected to one end of the T-shaped outer sleeve pipe away from the T-shaped inner sleeve pipe, the two ends of the spring one are fixedly connected to the opposite surfaces of the rubber scraper and the T-shaped outer sleeve pipe, the T-shaped inner sleeve pipe is fixedly connected to the rubber scraper, and the spring two is fixedly connected to the opposite surfaces of the lifting rod and the base.

[0009] Moving lane changing structure, the moving lane changing structure is arranged in the bending cavity and connected with the base, and the moving lane changing structure is used for controlling the reciprocating rubber scraper to realize one-way contact with the reverse osmosis membrane assembly.

[0010] High-pressure flushing structure, the high-pressure flushing structure is arranged in the bending cavity and connected with the reciprocating linear mechanism, and the high-pressure flushing structure is used for flushing the other side of the reverse osmosis membrane assembly.

[0011] Paddle, paddles are arranged in the main flow pipe and the auxiliary flow pipe, and a transmission shaft one is fixedly connected to the paddle, a support frame is fixedly connected to the auxiliary flow pipe, and a transmission access structure is arranged on the support frame and provides rotary power for one pair of reciprocating lead screws through a pair of transmission shafts.

[0012] In a preferred embodiment, the reciprocating linear mechanism further comprises a reciprocating screw rod rotatably connected in the bending cavity, a threaded sleeve threadedly connected to the reciprocating screw rod, a light rod fixedly connected in the bending cavity, and a sliding seat slidably connected to the light rod, the lifting rod is fixedly connected to the threaded sleeve and the sliding seat, each pair of reciprocating screw rods arranged transversely is connected through a belt transmission mechanism, one end of the lifting rod away from the sliding seat is fixedly connected to the reciprocating screw rod, and the T-shaped outer sleeve pipe movably penetrates the lifting rod on one side of the reverse osmosis membrane assembly.

[0013] In a preferred implementation form, a pair of moving lane-changing structures are arranged in each bending cavity, and each moving lane-changing structure comprises a limiting guide bracket fixedly arranged in the bending cavity and a roller rotatably connected to the limiting guide bracket.

[0014] In a preferred implementation form, the limiting guide bracket is provided with a trapezoidal guide surface on one side, and the limiting guide bracket is provided with an arc-shaped top sliding surface at the bottom end, the trapezoidal guide surface is connected to the arc-shaped top sliding surface, and an assembly bracket is fixedly connected in the bending cavity and fixedly connected to the pair of limiting guide brackets.

[0015] In a preferred implementation form, the inner walls of the main flow pipeline and the auxiliary flow pipeline are both provided with pressure sensors for sensing the water pressure on both sides of the reverse osmosis membrane assembly.

[0016] In a preferred implementation form, the high-pressure flushing structure comprises a spray pipe fixedly connected to a lifting rod on the other side of the reverse osmosis membrane assembly and a plurality of high-pressure nozzles fixedly connected to the side of the spray pipe, the high-pressure nozzles are used to flush the other side of the reverse osmosis membrane assembly, a connecting head is fixedly penetrated in the lifting rod, and the connecting head is connected to the spray pipe.

[0017] In a preferred implementation form, the inner top of the bending cavity is fixedly connected with a pressure-reducing plate, and the pressure-reducing plate is provided with a plugging groove for avoiding the high-pressure nozzles.

[0018] In a preferred implementation form, a pair of transmission shafts are rotatably connected to the main flow pipeline and the auxiliary flow pipeline respectively, and the outer surfaces of the main flow pipeline and the auxiliary flow pipeline are both fixedly connected with damping sleeves, and the damping sleeves are in frictional contact with the outer surfaces of the transmission shafts.

[0019] In a preferred implementation form, the transmission access structure comprises a linear module fixedly connected to the inner top of the support frame, a rotating frame fixedly connected to the sliding part of the linear module, and a pair of gear wheels I rotatably connected to the rotating frame.

[0020] In a preferred implementation form, the transmission access structure further comprises a pair of gear wheels II located on one side of each gear wheel I and a pair of transmission shafts II fixedly connected to the ends of a pair of reciprocating wire rods arranged in a vertical direction, the transmission shafts II and the opposite ends of the transmission shafts I are both provided with gear wheels II, and the gear wheels I are used for meshing connection with the pair of gear wheels II.

[0021] Technical effects and advantages of the present application:

[0022] The application utilizes one end of the main flow pipeline to be sequentially communicated with the square and round pipeline one and the flow guide cutting pipeline, the flow guide cutting pipeline is fixedly communicated at one end of the auxiliary flow pipeline, the other end of the main flow pipeline is sequentially communicated with the square and round pipeline two and the square and round pipeline three, the square and round pipeline three is fixedly connected at the other end of the auxiliary flow pipeline, the square and round pipeline three is provided with a water outlet, the square and round pipeline one, the square and round pipeline two, the flow guide cutting pipeline and the square and round pipeline three are all provided with valves, the valves on the square and round pipeline one, the square and round pipeline two, the flow guide cutting pipeline and the square and round pipeline three are flexibly opened and closed to realize on-off control, the main flow pipeline and the auxiliary flow pipeline can be independently conducted to realize the conduction of water purification filtration, and the corresponding reverse osmosis membrane assembly can be quickly used for alternating water purification, so that the filtration operation of the water to be purified can be continuously carried out, and the alternating cleaning is convenient.

[0023] The application sets the reciprocating linear mechanism, the rubber scraper, the elastic extension component and the moving lane changing structure, the reciprocating linear mechanism drives the rubber scraper to vertically reciprocate on the side of the reverse osmosis membrane assembly, the elastic extension component can adaptively change under stress, the moving lane changing structure can control the reciprocating rubber scraper to contact the reverse osmosis membrane assembly in a single direction under the condition that the rubber scraper is attached to the reverse osmosis membrane assembly, the rubber scraper realizes the reciprocating and single-direction scraping action, and the residue of the filtered material on the reverse osmosis membrane assembly is reduced.

[0024] The application sets the high-pressure flushing structure, which can be synchronized with the rubber scraper to realize the action through the reciprocating movement of the reciprocating linear mechanism, and acts on the reverse osmosis membrane assembly through the high-pressure backwashing mode, so that the adhesion of the filtered material is reduced, the completeness of the filtered material removal is improved through the scraping action of the rubber scraper, and the filtered material is conveniently handled through the opening of the cleaning cover plate position, so that the cleaning is more rapid; in addition, the setting of the pressure reduction plate can improve the protection degree of the high-pressure flushing structure in the flowing water body under the idle state of the high-pressure flushing structure.

[0025] The application sets the paddle and the transmission access structure, the paddle can obtain the rotary power through the flow of the water body in the main flow pipeline or the auxiliary flow pipeline, and the transmission access structure flexibly accesses the rotary power to provide power transmission for the reciprocating linear mechanism, so that the energy-saving power is provided for the cleaning of the reverse osmosis membrane assembly. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of the first perspective of the whole application.

[0027] Figure 2 It is a structure schematic view of the second perspective of the whole application.

[0028] Figure 3 It is a rear view of the whole application. Figure 1 It is a rear view of the whole application.

[0029] Figure 4 Structure diagram of the reciprocating linear mechanism, the reverse osmosis membrane assembly, the elastic telescopic assembly and the high-pressure flushing structure of the present application.

[0030] Figure 5 Structure diagram of the elastic telescopic assembly and the moving lane-changing structure of the present application.

[0031] Figure 6 Structure diagram of the limiting guide slide frame of the present application.

[0032] Figure 7 Structure diagram of the high-pressure flushing structure and the pressure-reducing plate of the present application.

[0033] Figure 8 Structure diagram of the paddle and the transmission access structure of the present application

[0034] The reference signs are as follows: 1, main flow pipeline; 2, auxiliary flow pipeline; 3, bending cavity; 31, reverse osmosis membrane assembly; 32, cleaning cover plate; 4, Tianfangdiquan pipeline I; 5, flow guide cutting pipe; 6, Tianfangdiquan pipeline II; 7, Tianfangdiquan pipeline III; 71, drainage port; 8, reciprocating linear mechanism; 81, reciprocating screw rod; 82, threaded sleeve; 83, polished rod; 84, sliding seat; 85, lifting rod; 9, rubber scraper; 10, elastic telescopic assembly; 101, T-shaped outer sleeve pipe; 102, T-shaped inner sleeve pipe; 103, spring I; 104, spring II; 105, base; 11, moving lane-changing structure; 111, roller; 112, limiting guide slide frame; 1121, trapezoidal guide surface; 1122, arc-shaped top sliding surface; 12, high-pressure flushing structure; 121, spraying pipe; 122, high-pressure spray head; 13, paddle; 131, transmission shaft I; 14, linear module; 141, rotating frame; 142, gear I; 143, gear II; 144, transmission shaft II; 15, support frame; 16, assembly frame; 17, connecting head; 18, pressure-reducing plate; 19, plugging groove; 20, damping sleeve; 21, pressure sensor. DETAILED DESCRIPTION

[0035] 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 part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] In combination with Figures 1-4The application provides a reverse osmosis sewage filtering and purifying treatment device, which comprises a main flow pipeline 1 and a secondary flow pipeline 2, the inside of the main flow pipeline 1 and the secondary flow pipeline 2 is provided with a bending cavity 3 in the shape of H, the middle part of the bending cavity 3 is provided with a reverse osmosis membrane assembly 31, the setting of the bending cavity 3 can present the effect of narrow in the middle and high on both sides, the reverse osmosis membrane assembly 31 is arranged at the position of narrow in the middle, through reserving the effective interval of the reverse osmosis membrane assembly 31, the cleaning operation of the reverse osmosis membrane assembly 31 can be facilitated, a pair of cleaning cover plates 32 are detachably connected to the bottom of the main flow pipeline 1 and the secondary flow pipeline 2, the cleaning cover plates 32 are located below the side of the reverse osmosis membrane assembly 31, the cleaning cover plates 32 are detachably connected to the main flow pipeline 1 or the secondary flow pipeline 2 through bolts, because the cleaning cover plates 32 are correspondingly arranged below the side of the reverse osmosis membrane assembly 31, when the reverse osmosis membrane assembly 31 is cleaned, the falling of pollutants can be facilitated, one end of the main flow pipeline 1 is sequentially connected with a square tube 4 and a flow guide cutting pipe 5, the flow guide cutting pipe 5 is fixedly connected to one end of the secondary flow pipeline 2, the other end of the main flow pipeline 1 is sequentially connected with a square tube 6 and a square tube 7, the square tube 7 is fixedly connected to the other end of the secondary flow pipeline 2, the square tube 7 is provided with a water outlet 71, the square tube 4, the square tube 6, the flow guide cutting pipe 5 and the square tube 7 are all provided with valves, the valves preferably adopt electric or hydraulic valves, so that the opening and closing efficiency can be improved.

[0037] Specifically, because the reverse osmosis membrane assembly 31 is arranged in the main flow pipeline 1 and the secondary flow pipeline 2, the on-off control is realized by flexibly opening and closing the valves on the square tube 4, the square tube 6, the flow guide cutting pipe 5 and the square tube 7, the main flow pipeline 1, the square tube 4, the square tube 6 and the square tube 7 can constitute a water body filtering channel, and the square tube 4, the secondary flow pipeline 2 and the square tube 7 can constitute another water body filtering channel, because the main flow pipeline 1 and the secondary flow pipeline 2 can independently conduct water filtering, the water body is filtered and purified by alternately using a pair of reverse osmosis membrane assemblies 31, so that the synchronous effect of cleaning and filtering use of the reverse osmosis membrane assembly 31 can be realized, and the filtering operation of the water body without shutdown can be met.

[0038] The reverse osmosis sewage filtering and purifying treatment device further comprises a reciprocating linear mechanism 8, a rubber scraper 9, a moving lane changing structure 11, a high-pressure flushing structure 12 and a paddle 13.

[0039] A pair of reciprocating linear mechanisms 8 are arranged in the bending cavity 3 of the main flow pipeline 1 and the secondary flow pipeline 2, the reverse osmosis membrane assembly 31 is located between the pair of reciprocating linear mechanisms 8, and each pair of reciprocating linear mechanisms 8 arranged transversely is drivingly connected through a belt transmission mechanism, the reciprocating linear mechanism 8 comprises a lifting rod 85.

[0040] The pair of reciprocating linear mechanisms 8 are arranged in the bending cavities 3 of the main flow pipeline 1 and the secondary flow pipeline 2, and further comprise reciprocating screw rods 81 rotatably connected in the bending cavities 3, threaded sleeves 82 threadedly connected on the reciprocating screw rods 81, light rods 83 fixedly connected in the bending cavities 3, and sliding seats 84 slidingly connected on the light rods 83, the lifting rods 85 being fixedly connected on the threaded sleeves 82 and the sliding seats 84, each pair of reciprocating screw rods 81 being drivingly connected through a belt driving mechanism, one end of the lifting rod 85 opposite to the sliding seat 84 being fixedly connected on the reciprocating screw rod 81, the reciprocating screw rod 81 being rotatable, under the action of the sliding seat 84 sliding on the light rod 83, the lifting rod 85 being vertically reciprocated on one side of the reverse osmosis membrane assembly 31, and the highest and lowest positions of the lifting rod 85 being beyond the positions of the two ends of the reverse osmosis membrane assembly 31.

[0041] The rubber scrapers 9 are arranged in the bending cavities 3 of the main flow pipeline 1 and the secondary flow pipeline 2, and are arranged on the reciprocating linear mechanisms 8, the rubber scrapers 9 being used for scraping impurities on one side of the reverse osmosis membrane assembly 31, the rubber scrapers 9 being arranged in a triangular shape, and a pair of elastic telescopic assemblies 10 being arranged on the rubber scrapers 9.

[0042] With reference to Figure 5 The elastic telescopic assembly 10 comprises a T-shaped outer sleeve 101 movably penetrating on the lifting rod 85, a T-shaped inner sleeve 102 slidingly connected in the T-shaped outer sleeve 101, a spring one 103 sleeved on the T-shaped outer sleeve 101, a spring two 104 sleeved on the T-shaped outer sleeve 101, and a base 105 fixedly connected on one end of the T-shaped outer sleeve 101 opposite to the T-shaped inner sleeve 102, the two ends of the spring one 103 being fixedly connected on the opposite surfaces of the rubber scraper 9 and the T-shaped outer sleeve 101, the T-shaped inner sleeve 102 being fixedly connected on the rubber scraper 9, the spring two 104 being fixedly connected on the opposite surfaces of the lifting rod 85 and the base 105, and the T-shaped inner sleeve 102 being slidably limited in the T-shaped outer sleeve 101 in the application, the T-shaped outer sleeve 101 being provided with a limiting sliding groove for the sliding of the T-shaped inner sleeve 102, so as to prevent the T-shaped outer sleeve 101 and the T-shaped inner sleeve 102 from being separated at the maximum extension length.

[0043] The moving lane changing structures 11 are arranged in the bending cavities 3 and are connected with the bases 105, the moving lane changing structures 11 being used for controlling the reciprocating rubber scrapers 9 to be in single direction contact with the reverse osmosis membrane assembly 31, one pair of moving lane changing structures 11 being arranged in each bending cavity 3, the moving lane changing structure 11 comprising a limiting guide frame 112 fixedly arranged in the bending cavity 3, and a roller 111 rollingly connected on the limiting guide frame 112, the roller 111 being rotatably connected on the base 105.

[0044] With reference to Figure 6The one side of the limiting guide slide frame 112 is provided with a trapezoidal guide surface 1121, and the bottom end of the limiting guide slide frame 112 is provided with an arc-shaped top sliding surface 1122, the trapezoidal guide surface 1121 is connected with the arc-shaped top sliding surface 1122, the cooperation of the trapezoidal guide surface 1121 and the arc-shaped top sliding surface 1122 can change the moving path of the roller 111, so that the deformation effect of the spring one 103 and the spring two 104 can be adjusted, the assembly frame 16 is fixedly connected in the bending cavity 3, the assembly frame 16 is fixedly connected on the pair of limiting guide slide frames 112, and the assembly frame 16 is used for fixing the use position of the limiting guide slide frame 112.

[0045] Specifically, when the rubber scraper 9 is vertically reciprocated by the reciprocating linear mechanism 8, the rubber scraper 9 can be scraped in contact with the filter surface of the reverse osmosis membrane assembly 31 when the rubber scraper 9 moves downward, so that the rubber scraper 9 can remove the filter material on the reverse osmosis membrane assembly 31, and the filter material can freely fall through the cleaning opening formed by the cleaning cover plate 32 and fall. In the process of downward movement of the rubber scraper 9, the roller 111 can slide on the trapezoidal guide surface 1121 at this time, the trapezoidal guide surface 1121 is low to high and high to low, so that the roller 111 can push the T-shaped outer sleeve pipe 101 when it is at a high position, so that the spring one 103 and the spring two 104 are in a certain compression state, so that the rubber scraper 9 can be more effectively attached to the filter surface of the reverse osmosis membrane assembly 31 to perform a downward scraping action, until the roller 111 moves to the position of the arc-shaped top sliding surface 1122, at this time, the spring one 103 and the spring two 104 can be further compressed and deformed, at this time, the rubber scraper 9 abuts against the inner wall away from the reverse osmosis membrane assembly 31, until the roller 111 is separated from the arc-shaped top sliding surface 1122 and is located below, at this time, the spring one 103 and the spring two 104 can recover deformation, when the rubber scraper 9 is vertically reciprocated by the reciprocating linear mechanism 8, the side of the limiting guide slide frame 112 away from the trapezoidal guide surface 1121 and the arc-shaped top sliding surface 1122 can guide the movement of the roller 111, at this time, the spring two 104 is in a stretched state, so that the T-shaped inner sleeve pipe 102 in the maximum extension state can pull the rubber scraper 9 to separate from the reverse osmosis membrane assembly 31, so that the rubber scraper 9 can avoid the accumulation of filter material on the reverse osmosis membrane assembly 31 during the return stroke, until the roller 111 moves to the top of the limiting guide slide frame 112, at this time, the limiting guide slide frame 112 releases the guiding traction of the roller 111, so that the reset of the spring two 104 can make the roller 111 fall into the top position of the trapezoidal guide surface 1121, so that the rubber scraper 9 can continue to scrape the filter surface of the reverse osmosis membrane assembly 31 downward, because the rubber scraper 9 is used in a reciprocating one-way manner on the reverse osmosis membrane assembly 31, so that the filter material can be effectively and freely dropped, and the reliability and thoroughness of cleaning can be ensured.

[0046] For reference Figure 7, high-pressure flushing structure 12 is arranged in the bending cavity 3, and is connected with the reciprocating linear mechanism 8, the high-pressure flushing structure 12 is used for flushing the other side of the reverse osmosis membrane assembly 31, the high-pressure flushing structure 12 includes the spray pipe 121 fixedly connected on the lifting rod 85 on the other side of the reverse osmosis membrane assembly 31 and a plurality of high-pressure nozzles 122 fixedly connected on the side of the spray pipe 121, the high-pressure nozzle 122 is used for flushing the other side of the reverse osmosis membrane assembly 31, the lifting rod 85 is fixedly penetrated with the connecting head 17, the connecting head 17 is connected with the spray pipe 121, in the application, the connecting head 17 can be externally connected with the bendable pipe, and the pipe can be connected to the pumping equipment for high-pressure water input.

[0047] Specifically, in the vertical reciprocating process of the rubber scraper 9, the reciprocating linear mechanism 8 at the position of the spray pipe 121 can synchronously operate by using the belt transmission mechanism, so that the spray pipe 121 can act on the reverse osmosis membrane assembly 31 relative to the rubber scraper 9, the high-pressure flushing of one side of the reverse osmosis membrane assembly 31 is performed, the adhesion of the filtered material is reduced, and the rubber scraper 9 is scraped on the other side of the reverse osmosis membrane assembly 31, so that the thoroughness of the filtered material on the reverse osmosis membrane assembly 31 can be ensured.

[0048] The inner top of the bending cavity 3 is fixedly connected with the pressure relief plate 18, the pressure relief plate 18 is provided with the block groove 19 for avoiding the high-pressure nozzle 122, when the spray pipe 121 is idle, the spray pipe 121 can be contacted on the side of the pressure relief plate 18, and the high-pressure nozzle 122 can enter the block groove 19 to be blocked, when the main flow pipe 1 or the auxiliary flow pipe 2 filters the water flow, the damage of the high-pressure nozzle 122 caused by the water flow impact can be avoided.

[0049] Combined with reference Figure 8 The main flow pipe 1 and the auxiliary flow pipe 2 are provided with the paddle 13, and the paddle 13 is fixedly connected with the transmission shaft one 131, the auxiliary flow pipe 2 is fixedly connected with the support frame 15, the support frame 15 is provided with the transmission access structure for providing rotary power for one pair of reciprocating lead screws 81 through the pair of transmission shafts one 131, the transmission access structure includes the linear module 14 fixedly connected to the inner top of the support frame 15, the rotating frame 141 fixedly connected to the sliding part of the linear module 14 and the pair of gear one 142 rotatably connected to the rotating frame 141, the transmission access structure further includes the pair of gear two 143 located on one side of each gear one 142 and the pair of transmission shaft two 144 fixedly connected to the end of the pair of reciprocating lead screws 81 distributed vertically, the opposite ends of the transmission shaft two 144 and the transmission shaft one 131 are provided with the gear two 143, and the gear one 142 is used for meshing connection with the pair of gear two 143.

[0050] A pair of transmission shafts one 131 are respectively sealed and rotatably connected on the main flow pipeline 1 and the auxiliary flow pipeline 2, the outer surfaces of the main flow pipeline 1 and the auxiliary flow pipeline 2 are fixedly connected with damping sleeves 20, the damping sleeves 20 are in frictional contact with the outer surfaces of the transmission shafts one 131, the damping sleeves 20 can increase the damping of the rotation of the transmission shafts one 131, so as to stabilize the rotating speed of the transmission shafts one 131 and guarantee the reliability of the cleaning power of the reverse osmosis membrane assembly 31.

[0051] Specifically, when the main flow pipeline 1 or the auxiliary flow pipeline 2 is used for water body filtration, at this time, the water body flowing in the main flow pipeline 1 or the auxiliary flow pipeline 2 can drive the paddle 13 to rotate, so that the gear two 143 on the transmission shaft one 131 can rotate, the gear one 142 on the rotating frame 141 is in contact with a pair of gear two 143 on the same side through the linear module 14, so that the rotating power of the paddle 13 can be transmitted to the reciprocating linear mechanism 8 at the position of the reverse osmosis membrane assembly 31 which needs to be cleaned, so as to provide cleaning power for the reverse osmosis membrane assembly 31; when a pair of reverse osmosis membrane assemblies 31 do not need to be cleaned, at this time, the linear module 14 can move the gear one 142 on the rotating frame 141 to be not in contact with the gear two 143, so as to stop the transmission of power.

[0052] The inner walls of the main flow pipeline 1 and the auxiliary flow pipeline 2 are provided with pressure sensors 21 for sensing the water pressure on both sides of the reverse osmosis membrane assembly 31, the pressure sensors 21 obtain the pressure on both sides of the reverse osmosis membrane assembly 31 through water body filtration, the greater the change of the pressure difference indicates the worse the filtration effect of the reverse osmosis membrane assembly 31, the pressure sensors 21 are electrically connected with the controller, the valve, the linear module 14 and the pumping equipment connected to the outside of the high-pressure flushing structure 12, so as to realize the automatic cleaning effect of the reverse osmosis membrane assembly 31.

Claims

1. A reverse osmosis sewage filtering and purifying treatment device, comprising a main flow pipeline (1) and a secondary flow pipeline (2), characterized in that: The inside of the main flow pipeline (1) and the auxiliary flow pipeline (2) is provided with a bending cavity (3) in the shape of "H", and the middle part of the bending cavity (3) is provided with a reverse osmosis membrane assembly (31), and the bottom of the main flow pipeline (1) and the auxiliary flow pipeline (2) is detachably connected with a pair of cleaning cover plates (32), the cleaning cover plates (32) are located below the side of the reverse osmosis membrane assembly (31), one end of the main flow pipeline (1) is sequentially connected with a square tube (4) and a flow guide cutting pipe (5), the flow guide cutting pipe (5) is fixedly connected with one end of the auxiliary flow pipeline (2), the other end of the main flow pipeline (1) is sequentially connected with a square tube (6) and a square tube (7), the square tube (7) is fixedly connected with the other end of the auxiliary flow pipeline (2), the square tube (7) is provided with a water outlet (71), and the square tube (4), the square tube (6), the flow guide cutting pipe (5) and the square tube (7) are all provided with valves; The reciprocating linear mechanism (8) is arranged in the bending cavity (3) of the main flow pipeline (1) and the auxiliary flow pipeline (2), the reverse osmosis membrane assembly (31) is located between the reciprocating linear mechanism (8), and each pair of reciprocating linear mechanism (8) arranged transversely is driven and connected through a belt transmission mechanism, and the reciprocating linear mechanism (8) comprises a lifting rod (85); The rubber scraper (9) is arranged in the bending cavity (3) of the main flow pipeline (1) and the auxiliary flow pipeline (2), and the rubber scraper (9) is arranged on the reciprocating linear mechanism (8), the rubber scraper (9) is used for scraping impurities on one side of the reverse osmosis membrane assembly (31), and a pair of elastic expansion assemblies (10) are arranged on the rubber scraper (9) and the lifting rod (85); The elastic expansion assembly (10) comprises a T-shaped outer sleeve (101) movably penetrating through the lifting rod (85), a T-shaped inner sleeve (102) slidingly connected in the T-shaped outer sleeve (101), a spring (103) sleeved on the T-shaped outer sleeve (101), a spring (104) sleeved on the T-shaped outer sleeve (101), and a base (105) fixedly connected to one end of the T-shaped outer sleeve (101) away from the T-shaped inner sleeve (102), the two ends of the spring (103) are fixedly connected to the opposite surfaces of the rubber scraper (9) and the T-shaped outer sleeve (101), the T-shaped inner sleeve (102) is fixedly connected to the rubber scraper (9), and the spring (104) is fixedly connected to the opposite surfaces of the lifting rod (85) and the base (105). The reciprocating linear mechanism (8) further comprises reciprocating screw rods (81) rotatably connected in the bending cavity (3), threaded sleeves (82) threadedly connected on the reciprocating screw rods (81), light rods (83) fixedly connected in the bending cavity (3), and sliding seats (84) slidably connected on the light rods (83), the lifting rods (85) being fixedly connected on the threaded sleeves (82) and the sliding seats (84), each pair of reciprocating screw rods (81) being drivingly connected through a belt driving mechanism, one end of the lifting rod (85) away from the sliding seat (84) being fixedly connected on the threaded sleeve (82), and the T-shaped outer sleeve (101) being movably penetrated on the lifting rod (85) on one side of the reverse osmosis membrane assembly (31). The moving lane changing structure (11) is arranged in the bending cavity (3) and connected with the base (105), and is used for controlling the reciprocating rubber scraper (9) to contact the reverse osmosis membrane assembly (31) in a single direction. A pair of moving lane changing structures (11) are arranged in each bending cavity (3), the moving lane changing structure (11) comprising a limiting guide sliding frame (112) fixedly arranged in the bending cavity (3) and a roller (111) rollingly connected on the limiting guide sliding frame (112), the roller (111) being rotatably connected on the base (105), one side of the limiting guide sliding frame (112) being provided with a trapezoidal guide surface (1121), the bottom end of the limiting guide sliding frame (112) being provided with an arc-shaped top sliding surface (1122), the trapezoidal guide surface (1121) being connected with the arc-shaped top sliding surface (1122), and a mounting frame (16) being fixedly connected in the bending cavity (3), the mounting frame (16) being fixedly connected on the pair of limiting guide sliding frames (112). The high-pressure flushing structure (12) is arranged in the bending cavity (3) and connected with the reciprocating linear mechanism (8), and is used for flushing the other side of the reverse osmosis membrane assembly (31). The paddle (13) is arranged in the main flow pipeline (1) and the auxiliary flow pipeline (2), and the transmission shaft one (131) is fixedly connected on the paddle (13), the support frame (15) is fixedly connected on the auxiliary flow pipeline (2), and the transmission access structure is arranged on the support frame (15) and provides rotary power for one pair of reciprocating screw rods (81) through one pair of transmission shafts one (131).

2. The reverse osmosis sewage filtering and purifying treatment device according to claim 1, characterized in that: The pressure sensor (21) for sensing the water pressure on both sides of the reverse osmosis membrane assembly (31) is arranged on the inner wall of the main flow pipeline (1) and the auxiliary flow pipeline (2).

3. The reverse osmosis sewage filtering and purifying treatment device according to claim 1, characterized in that: The high-pressure flushing structure (12) comprises a spray pipe (121) fixedly connected to a lifting rod (85) on the other side of the reverse osmosis membrane assembly (31) and a plurality of high-pressure nozzles (122) fixedly connected to the side of the spray pipe (121), the high-pressure nozzles (122) being used for flushing the other side of the reverse osmosis membrane assembly (31), the lifting rod (85) being fixedly penetrated with a connecting head (17), and the connecting head (17) being connected with the spray pipe (121).

4. The reverse osmosis sewage filtering and purifying treatment device according to claim 3, characterized in that: The inner top of the bending cavity (3) is fixedly connected with a pressure reduction plate (18), and the pressure reduction plate (18) is provided with a blocking groove (19) for avoiding the high-pressure nozzles (122).

5. The reverse osmosis sewage filtering and purifying treatment device according to claim 1, characterized in that: A pair of transmission shafts one (131) are respectively rotationally connected to the main flow pipeline (1) and the auxiliary flow pipeline (2), the outer surfaces of the main flow pipeline (1) and the auxiliary flow pipeline (2) are fixedly connected with damping sleeves (20), and the damping sleeves (20) are in frictional contact with the outer surfaces of the transmission shafts one (131).

6. The reverse osmosis sewage filtering and purifying treatment device according to claim 1, characterized in that: The transmission access structure comprises a linear module (14) fixedly connected to the inner top of the support frame (15), a rotating frame (141) fixedly connected to the sliding part of the linear module (14), and a pair of gear wheels one (142) rotationally connected to the rotating frame (141).

7. The reverse osmosis sewage filtering and purifying treatment device according to claim 6, characterized in that: The transmission access structure further comprises a pair of gear wheels two (143) located on one side of each gear wheel one (142) and a pair of transmission shafts two (144) fixedly connected to the end portions of a pair of reciprocating wire rods (81) vertically distributed, the transmission shafts two (144) and the opposite ends of the transmission shafts one (131) are respectively provided with the gear wheels two (143), and the gear wheels one (142) are used for meshingly connecting the pair of gear wheels two (143).

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