Frame integrated ultrafiltration membrane water purification equipment

Abstract

The invention relates to the field of water treatment equipment, in particular to frame integrated ultrafiltration membrane water purification equipment, and aims to solve the problems that in the prior art, impurities in water to be treated are easily attached to the surface of a membrane assembly, and the duration of filtering the water to be treated by an immersed curtain type membrane assembly cannot be effectively maintained and prolonged. According to the frame integrated ultrafiltration membrane water purification equipment, an immersed curtain type membrane assembly is mounted on the inner side of a mounting frame, a shaking part is arranged on one side of the bottom of the mounting frame, the air outlet end of an air inlet pipeline is communicated with the shaking part, and the air inlet pipeline can drive the shaking part to push the immersed curtain type membrane assembly to shake back and forth when air is discharged; according to the present invention, during the aeration, the gas can be adopted as the driving force to drive the immersed curtain type membrane assembly to rapidly shake so as to increase the fluctuation frequency of the membrane assembly and the collision force of the membrane assembly and the bubbles generated during the sewage aeration, such that the adhesion of the impurities on the surface of the membrane filament during the water filtration process is reduced, and the backwashing frequency can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the field of water treatment equipment, and in particular to a frame-integrated ultrafiltration membrane water purification equipment. Background Art

[0002] In the process of water treatment research, ultrafiltration membrane pools that use ultrafiltration membrane technology for water treatment have become one of the mainstream water treatment methods. Ultrafiltration membrane technology is used to produce clean water, and the sediment is discharged through sludge discharge. It can effectively remove pollutants such as suspended matter, bacteria, viruses, colloids, and macromolecular organic matter in the water, with a high removal rate, and is especially suitable for high-standard drinking water treatment;

[0003] Ultrafiltration membrane technology is a microporous filtration technology, and its rated pore size range is precisely controlled between 0.001 and 0.02 microns. As one of the earliest developed polymer membranes, ultrafiltration membrane plays an important role in the field of environmental protection, especially in the field of water treatment, with its unique microporous filtration characteristics; among them, as a type of ultrafiltration membrane technology, the submerged curtain membrane is a physical separation process in which a fluid flows tangentially on the membrane surface. It is driven by a lower pressure and separates and filters according to the molecular weight of the solute. In actual applications, the submerged curtain membrane is completely immersed in the pool to be treated, and the water inlet channel is designed to be completely open, so that water can be sucked from the outside to the inside under negative pressure, thereby using the pressure difference as the driving force for physical separation. It is more suitable for the continuous filtration process of large-scale sewage treatment. Among them, since the submerged curtain membrane is immersed in the ultrafiltration pool, it is used in filtering sewage. Under the adsorption effect during the process and the precipitation of flocculants in the sewage, it is easy for the membrane filaments of the submerged curtain membrane to adhere to flocculants and other impurities, causing the membrane filaments to be blocked, affecting the sewage filtration. Therefore, it is necessary to frequently use backwashing equipment to backwash the submerged curtain membrane assembly to maintain its filtration efficiency. However, too high a backwashing frequency and intensity will also have an adverse effect on the filtration function of the membrane filaments. For example, the patent application disclosed in the prior art with the publication number CN105293635A discloses an submerged curtain membrane assembly resistant to backwashing impact, which is composed of an inner sealing layer and an outer sealing layer, wherein the inner sealing layer is a hard sealing layer and the outer sealing layer is a connection structure of a soft sealing layer, thereby increasing the service life and avoiding damage to the membrane assembly during frequent backwashing.

[0004] However, in the application of submerged curtain membrane modules in the currently used ultrafiltration tanks, impurities in the treated water are easily attached to the surface of the membrane modules, which cannot effectively maintain and increase the duration of filtration of the submerged curtain membrane modules. Backwashing can also easily affect the filtration process and increase the output cost. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a frame-integrated ultrafiltration membrane water purification device, which effectively solves the problems mentioned in the above background technology.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is:

[0007] A frame-integrated ultrafiltration membrane water purification device comprises a frame, an air inlet pipe, a water inlet pipe, a mud outlet pipe, a water production pipe and an ultrafiltration membrane assembly, wherein the water production pipe is connected to the water production ports of a plurality of ultrafiltration membrane assemblies, the frame comprises an upper frame and a lower frame fixedly connected to the lower side of the upper frame, the lower frame is used to support the device, an ultrafiltration pool is formed inside the upper frame, the mud outlet pipe is connected to the bottom of the ultrafiltration pool, a plurality of ultrafiltration membrane assemblies are respectively detachably vertically installed inside the ultrafiltration pool, the water outlets of the plurality of ultrafiltration membrane assemblies are respectively connected to the water production pipe, and the water outlets of the water production pipe are located inside the lower frame;

[0008] The ultrafiltration membrane assembly includes a mounting frame and an immersed curtain membrane assembly. The immersed curtain membrane assembly is mounted on the inner side of the mounting frame. Flexible protective curtains are mounted on both sides of the immersed curtain membrane assembly. A shaking component is arranged on one side of the bottom of the mounting frame. The air outlet end of the air inlet pipe is connected to the shaking component. When the air inlet pipe is discharged, the shaking component can be driven to push the immersed curtain membrane assembly to shake back and forth.

[0009] The air inlet pipeline is fixedly connected to the water production pipeline and is connected to a gas recoil component capable of supplying gas to the water production pipeline.

[0010] Preferably, the frame also includes a water production frame fixedly connected to the upper side of the upper frame and a hollow frame fixedly connected to the inner bottom of the upper frame. The water production frame and the hollow frame are respectively hollow structures, the air intake pipe is connected to the hollow frame, and the water production pipe is connected to the water production frame.

[0011] Preferably, the sides of the upper frame are respectively fixedly connected with a plurality of sealing plates, the bottom of the upper frame is respectively fixedly connected with a plurality of collecting plates with central openings, and the opening of the mud outlet pipe is connected to the central opening of the collecting plate; two mutually perpendicular partitions are respectively fixedly connected to the inner side of the left end of the upper frame, a water inlet space is formed by the two partitions, the upper end of the water inlet pipe is fixedly connected to the horizontally arranged partition and connected to the water inlet space, and a plurality of water inlets are respectively opened at the bottom of the vertically arranged partition.

[0012] Preferably, the mud discharge pipe includes a mud discharge pipe horizontally arranged on the inner side of the lower frame and mud discharge branch pipes respectively fixedly connected to the bottom openings of the collecting plate, the other ends of the mud discharge branch pipes are respectively fixedly connected and connected to the mud discharge pipes, the collecting plate has a structure inclined downward in the middle, and the surface of the mud discharge pipe near the opening is fixedly connected and connected to a vertically arranged air-water separation pipe.

[0013] Preferably, the air intake duct includes an air intake pipe, one end of which is fixedly connected and communicated with the hollow frame, a plurality of aeration pipes arranged parallel to each other are provided at the lower end of the hollow frame, both ends of the aeration pipes are respectively fixedly connected and communicated with two sides of the hollow frame, and a plurality of through holes are respectively provided on the surface of the aeration pipes.

[0014] Preferably, the water production pipeline includes a water production pipe horizontally arranged on the inner side of the lower frame, the upper side of the water production pipe is fixedly connected and connected to a water production branch pipe, the other end of the water production branch pipe is fixedly connected and connected to the water production frame, the inner side of the water production frame is respectively fixedly connected and connected to a plurality of connecting pipes arranged parallel to each other, and the water outlets of the ultrafiltration membrane modules are respectively connected to the connecting pipes.

[0015] Preferably, the gas recoil component includes an air filter cartridge, both ends of the air filter cartridge are fixedly connected to a first switch, the first switch close to the hollow frame is fixedly connected to and connected with the hollow frame, the other end of the other first switch is fixedly connected to a connecting pipe, the other end of the connecting pipe is fixedly connected to a one-way valve, the other end of the one-way valve is fixedly connected to a three-way pipe, the other two end openings of the three-way pipe are fixedly connected to a second switch and a third switch, the lower end of the third switch is fixedly connected to a dispersion pipe, the dispersion pipe is fixedly connected to a water production pipeline, and part of the dispersion pipe extends to the inside of the water production pipeline;

[0016] A flat valve is connected between the water production branch pipe and the water production frame.

[0017] Preferably, a fixed frame is provided at the lower side of the water production frame, the fixed frame is fixedly connected to the inner side of the upper frame, and a plurality of ultrafiltration membrane assemblies are respectively installed between the fixed frame and the hollow frame;

[0018] The inner side of the fixed frame is fixedly connected with a plurality of fixed support plates arranged parallel to each other, the inner side of the hollow frame is fixedly connected with a plurality of mounting plates arranged parallel to each other, the surfaces of the mounting plates are respectively provided with a plurality of card slots, the lower ends of the mounting frames are respectively engaged with the corresponding card slots, the left and right sides of the upper end of the mounting frame are respectively fixedly connected with locking pins, the surfaces of the fixed support plates corresponding to the locking pins are respectively provided with mounting holes, and the locking pins are respectively unidirectionally plugged into the corresponding mounting holes.

[0019] Preferably, the locking pin is of a hollow structure and has a rectangular opening on its circumferential surface, a ratchet plate which can move radially along the locking pin is slidably connected to the rectangular opening, the ratchet teeth of the ratchet plate are arranged to be tilted upward, a center rod is coaxially rotatably connected to the inside of the locking pin, matching plates are fixedly connected to the upper and lower sides of the surface of the center rod respectively, a connecting groove is provided on the surface of the matching plate, driven plates are hingedly connected to the upper and lower sides of one end of the ratchet plate away from the tooth surface respectively, and a pin shaft is fixedly connected to the other end of the driven plate respectively, and the pin shaft is slidably fitted in the inner side of the connecting groove respectively;

[0020] A matching block is slidably connected to the inner side of the connecting groove, and reset springs are fixedly connected to the two side surfaces of the matching block, and the other ends of the reset springs are fixedly connected to the inner wall of the connecting groove. Under the push of the reset spring, the matching block fits the surface of the pin shaft, and when the driven plate is parallel and vertical to the matching plate, the reset spring is in a compressed state.

[0021] Preferably, the shaking component includes a shell fixedly connected to the surface of the mounting plate, an impeller and a rotating plate are rotatably connected inside the shell, the impeller and the rotating plate are coaxially fixedly connected, one side of the surface of the shell is fixedly connected and connected to an air supply pipe, the other end of the air supply pipe is fixedly connected and connected to an aeration pipe, and the other side of the shell surface is fixedly connected and connected to an air outlet pipe;

[0022] The inner side of the mounting plate is slidably connected with a reciprocating rod that can move left and right, and a second hinged rod is hinged at a non-center position on the surface of the rotating plate, and the other end of the second hinged rod is hinged to the reciprocating rod. A mounting frame corresponding to the reciprocating rod is provided with a sliding groove with openings at both ends, and a push rod is slidably connected to the inner side of the sliding groove, one end of the push rod is in contact with the reciprocating rod, and the other end of the push rod is a spherical structure, and a spherical groove meshing with the spherical structure is provided at a position corresponding to the spherical structure on the lower side of the submerged curtain membrane assembly, a spring plate is arranged between the other side of the lower end of the submerged curtain membrane assembly and the mounting frame, a baffle is fixedly connected to the surface of the push rod, the baffle is slidably connected to the sliding groove, and support springs are respectively provided on the surface of the reciprocating rod between the baffle and the spherical structure.

[0023] The present invention has novel structure, ingenious design, simple and convenient operation, and has the following advantages compared with the prior art:

[0024] 1. When this equipment is treating water, it adopts the siphon principle. Under the action of atmospheric pressure, the water to be treated flows to the water production pipeline through the filtration of the submerged curtain membrane module, and flows out through the outlet of the water production pipeline to produce clean water; during the process of filtering sewage, the sewage is aerated, and the gas can be used as a driving force to drive the submerged curtain membrane module to shake rapidly during aeration, thereby increasing the fluctuation frequency of the membrane module itself and the collision force with the bubbles generated during sewage aeration, reducing the attachment of impurities on the membrane surface during sewage filtration, maintaining the filtering effect of the submerged curtain membrane module and extending the continuous use time, which can effectively reduce the frequency of backwashing;

[0025] 2. During backwashing, part of the gas inside the air inlet pipe can be transferred to the water production pipe under the action of the gas backwash component, and the gas-water mixture formed after mixing with the purified water inside the water production pipe is used to backwash the submerged curtain membrane, which can not only improve the flushing effect, but also reduce the additional flushing equipment during backwashing, reduce the operation steps and backwashing costs;

[0026] 3. This equipment is designed with a frame structure as a channel for gas and clean water transmission, and uses a water production frame and a hollow frame as gas and water transmission channels for gas and clean water transmission, so that the water production frame and the hollow frame can not only support and reinforce the entire frame, but also can be used as a transmission channel, which can reduce the number of pipelines used in water treatment of this equipment, and can reduce the weight of the frame while reinforcing the frame, thereby improving the overall quality of this equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the first schematic diagram of the overall structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0028] Figure 2 This is a second schematic diagram of the overall structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0029] Figure 3 It is a schematic diagram of the frame structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0030] Figure 4 This is a first schematic diagram of the mud outlet pipe installation structure of a frame-integrated ultrafiltration membrane water purification equipment of the present invention.

[0031] Figure 5 This is a second schematic diagram of the mud outlet pipe installation structure of a frame-integrated ultrafiltration membrane water purification equipment of the present invention.

[0032] Figure 6 This is a schematic diagram of the air intake pipe installation structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0033] Figure 7 This is a schematic diagram of the water production pipeline installation structure of a frame-integrated ultrafiltration membrane water purification equipment of the present invention.

[0034] Figure 8 This is a schematic diagram of the coordinated structure of the air intake pipe and the water production pipe of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0035] Fig. 9 The present invention is a schematic diagram of the installation structure of the gas recoil component of the frame-integrated ultrafiltration membrane water purification equipment.

[0036] Fig.10 It is a schematic diagram of the partial structure of the gas recoil component of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0037] Fig.11 This is a schematic diagram of the flat valve structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0038] Fig.12The present invention is a schematic diagram of the installation structure of an ultrafiltration membrane assembly of a frame-integrated ultrafiltration membrane water purification device.

[0039] Fig.13 This is a schematic diagram of the installation structure of the shaking component of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0040] Fig.14 This is the first schematic diagram of the structure of the shaking component of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0041] Fig.15 This is the second schematic diagram of the shaking component structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0042] Fig.16 It is a schematic diagram of the installation structure of the submerged curtain membrane assembly of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0043] Fig.17 It is a schematic diagram of the exploded structure of the installation frame and the submerged curtain membrane assembly installation structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0044] Fig.18 This is a first schematic diagram of a locking pin structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0045] Fig.19 This is a second schematic diagram of the locking pin structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0046] Fig. 20 It is a schematic diagram of the protective curtain structure of a frame-integrated ultrafiltration membrane water purification device of the present invention.

[0047] Numbers in the figure: 1-upper frame, 2-lower frame, 3-sealing plate, 4-top plate, 5-partition plate, 7-water inlet, 8-collecting plate, 9-mud outlet pipe, 10-gas-water separation pipe, 11-mud outlet branch pipe, 12-air inlet pipe, 13-connecting plate, 14-hollow frame, 15-mounting plate, 16-water production pipe, 17-water production branch pipe, 18-water production frame, 19-connecting pipe, 20-flat valve core, 21-transmission shaft, 22-motor, 23-swinging plate, 24-first hinged rod, 25-air filter cartridge, 26-first switch, 27-connecting pipe, 28-check valve, 29-three-way pipe, 30-second switch, 31-third switch , 32-dispersion pipe, 33-fixed frame, 34-ultrafiltration membrane assembly, 35-protective curtain, 36-installation frame, 37-aeration pipe, 38-air pipe, 39-swaying component, 40-impeller, 41-rotating plate, 42-reciprocating rod, 43-support spring, 44-baffle, 45-second hinged rod, 46-limiting frame, 47-air outlet pipe, 48-spring plate, 49-locking pin, 51-control handle, 52-center rod, 53-ratchet plate, 54-driven plate, 55-matching plate, 56-matching block, 57-pin shaft, 58-reset spring, 59-submerged curtain membrane assembly, 60-installation pipe, 61-push rod. DETAILED DESCRIPTION

[0048] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0049] like Figure 1-20 As shown, the present invention provides a frame-integrated ultrafiltration membrane water purification device, including a frame, which is formed by a plurality of criss-cross stainless steel structures fixedly connected to form the overall frame structure of the device, which is convenient to assemble and disassemble when in use; an air inlet pipe for aerating sewage; a water inlet pipe for injecting sewage; a mud outlet pipe for extracting sludge formed after flocculants are precipitated; a water production pipe for conveying the produced purified water; an ultrafiltration membrane assembly 34 for filtering sewage to produce purified water; the water production pipe is connected to the water production ports of the plurality of ultrafiltration membrane assemblies 34, and the frame includes an upper frame 1 and a lower frame 2 fixedly connected to the lower side of the upper frame 1, and the upper An ultrafiltration tank is formed inside the frame 1 to accommodate sewage. The mud outlet pipe is connected to the bottom of the ultrafiltration tank. Multiple ultrafiltration membrane components 34 are detachably installed vertically inside the ultrafiltration tank. The ultrafiltration membrane components 34 are vertically arranged to provide the largest filtering surface for filtering sewage. The outlets of the multiple ultrafiltration membrane components 34 are connected to the water production pipeline respectively. The outlet of the water production pipeline is located on the inner side of the lower frame 2, so that the height of the ultrafiltration membrane component 34 is higher than the outlet of the water production pipeline. By using the siphon principle, the sewage flows to the water production pipeline under the action of atmospheric pressure through the filtration of the ultrafiltration membrane component 34, and flows out through the outlet of the water production pipeline to produce clean water.

[0050] The ultrafiltration membrane assembly 34 includes a mounting frame 36 and an immersed curtain membrane assembly 59. The immersed curtain membrane assembly 59 is mounted on the inner side of the mounting frame 36. The upper end of the immersed curtain membrane assembly 59 is fixedly connected to the upper end of the mounting frame 36 by screws, so that the water outlet of the immersed curtain membrane assembly 59 corresponds to the water outlet of the mounting frame 36 to keep the water flowing. The lower end of the immersed curtain membrane assembly 59 is slidably connected to the lower end of the mounting frame 36. A shaking portion is provided on one side of the bottom of the mounting frame 36. Part 39, the outlet end of the air inlet pipe is connected to the shaking component 39, and when the air inlet pipe is discharged, the shaking component 39 can be driven to push the submerged curtain membrane assembly 59 to shake back and forth. During aeration, the gas can be used as a driving force to drive the submerged curtain membrane assembly to shake rapidly, thereby increasing the fluctuation frequency of the membrane assembly itself and the collision force with the bubbles generated during sewage aeration, reducing the adhesion of impurities, and causing the flocculants and impurities attached to the surface of the membrane to fall off, thereby reducing the blockage of the submerged curtain membrane assembly 59;

[0051] like Fig. 20 As shown, flexible protective curtains 35 are respectively installed on both sides of the submerged curtain membrane assembly 59, and the protective curtain 35 includes a right-angle folding plate and a plurality of flexible strips fixedly connected to the bottom of the right-angle folding plate in an inclined state. The right-angle folding plate is fixedly connected to the upper end of the submerged curtain membrane assembly 59. When water treatment is performed, the protective curtain 35 can prevent part of the flocculants from adhering to the surface of the membrane wire, and the flexible strips can swing at the same time during the shaking process of the submerged curtain membrane assembly 59. The swing of the flexible strips contacts the membrane wires to eliminate part of the attachments, which can greatly reduce the amount of attachments on the surface of the membrane wires, improve the filtration efficiency and service life of the submerged curtain membrane assembly 59, and indirectly improve the flushing effect of the submerged curtain membrane during backwashing;

[0052] The air inlet pipe and the water production pipe are fixedly connected and connected with a gas recoil component capable of supplying gas to the water production pipe. Under the action of the gas recoil component, a part of the gas in the air inlet pipe can be transferred to the water production pipe, and the gas-water mixture formed after mixing with the purified water inside the water production pipe is used to backwash the submerged curtain membrane, which can not only improve the flushing effect, but also reduce the additional flushing equipment during backwashing, reduce the operation steps and backwashing costs.

[0053] In order to improve the bearing capacity and service life of the overall rigid structure of the frame, the frame also includes a water-producing frame 18 fixedly connected to the upper side of the upper frame 1 and a hollow frame 14 fixedly connected to the inner bottom of the upper frame 1, and the frame as a whole is reinforced by the water-producing frame 18 and the hollow frame 14; further, the water-producing frame 18 and the hollow frame 14 are respectively hollow structures, the air intake pipe is connected to the hollow frame 14, and the water-producing pipe is connected to the water-producing frame 18, and the water-producing frame and the hollow frame 14 are used as gas and water transmission channels for the transmission of gas and clean water, so that the water-producing frame 18 and the hollow frame 14 can not only support and reinforce the frame as a whole, but also can be used as a transmission channel, which can reduce the number of pipes used in the water treatment of the device, and can reduce the weight of the frame while reinforcing the frame, thereby improving the overall quality of the device.

[0054] like Figure 2 As shown, the side surfaces of the upper frame 1 are fixedly connected with a plurality of sealing plates 3, which form an ultrafiltration tank enclosed around the upper frame 1 through the sealing plates 3, and the upper frame 1 is provided with a top plate 4 on the upper side to prevent debris from entering the ultrafiltration tank, and the bottom of the upper frame 1 is fixedly connected with a plurality of collecting plates 8 with openings in the middle, and the opening of the mud outlet pipe is connected to the middle opening of the collecting plate 8; two mutually perpendicular partitions 5 are fixedly connected to the inner side of the left end of the upper frame 1, and a water inlet space is formed by the two partitions 5, the upper end of the water inlet pipe is fixedly connected to the horizontally arranged partition 5 and connected to the water inlet space, the inlet of the water inlet pipe is connected to the sewage pump for pumping sewage, and a plurality of water inlets 7 are respectively provided at the bottom of the vertically arranged partition 5, and the sewage entering through the water inlet pipe is collected in the water inlet space and enters the ultrafiltration tank through the water inlet 7, and the water inlet 7 is located on the upper side of the ultrafiltration tank, so that the ultrafiltration tank forms a large-capacity accommodation space, thereby improving the water treatment capacity of the equipment.

[0055] like Figure 4 and Figure 5As shown, the mud outlet pipeline includes a mud outlet pipe 9 horizontally arranged on the inner side of the lower frame 2 and mud outlet branch pipes 11 respectively fixedly connected to the bottom openings of the collecting plate 8. A mud outlet valve is installed between the mud outlet branch pipe 11 and the collecting plate 8 to control the circulation of the mud outlet branch pipe 11. During water treatment, the mud outlet valve is closed, and the flocculants are precipitated and collected on the surface of the collecting plate 8. When discharging mud, the mud outlet valve can be opened. The outlet of the mud outlet pipe 9 is connected to a mud outlet pump for sucking and discharging mud. The other ends of the mud outlet branch pipes 11 are respectively fixedly connected and connected to the mud outlet pipe 9. The collecting plate 8 is structured with the middle part tilted downward. The precipitated flocculants settle on the surface of the collecting plate 8 to form sludge, and are collected at the opening in the middle of the collecting plate 8 under the action of the tilted structure on the surface of the collecting plate 8, which is beneficial to sludge discharge. During sludge discharge, the sludge is collected into the sludge discharge pipe 9 through the sludge discharge branch pipe 11 for unified discharge. The surface of the sludge discharge pipe 9 near the opening is fixedly connected and connected to a vertically arranged air-water separation pipe 10. During sludge discharge, the internal gas is discharged through the air-water separation pipe 10, and the sludge is discharged uniformly through the sludge discharge pipe 9.

[0056] like Figure 6 As shown, the air intake pipe includes an air intake pipe 12, one end of which is fixedly connected and communicated with the hollow frame 14, and a plurality of aeration pipes 37 arranged in parallel with each other are arranged at the lower end of the hollow frame 14, and the two ends of the aeration pipes 37 are respectively fixedly connected and communicated with the two sides of the hollow frame 14, and the inlet of the air intake pipe 12 is connected to an air pump for injecting air into the air intake pipe 12, and the air enters the aeration pipe 37 under the transportation of the hollow frame 14, and a plurality of through holes are respectively opened on the surface of the aeration pipe 37, and the gas is sprayed outwardly into the sewage through the through holes for aeration, and the aeration pipe 37 is located at the bottom of the ultrafiltration tank, and the aeration effect of the aeration pipe 37 maintains the dissolved oxygen concentration of the sewage, promotes the metabolism of microorganisms to decompose pollutants, and realizes the full contact and suspension state of the mixed liquid, thereby improving the sewage treatment efficiency, and the gas can be distributed to the bottom of the entire ultrafiltration tank under the connection and transportation of the hollow frame 14 and the aeration pipe 37, thereby improving the aeration effect.

[0057] like Figure 7As shown, the water production pipeline includes a water production pipe 16 horizontally arranged on the inner side of the lower frame 2, and the upper side of the water production pipe 16 is fixedly connected and connected with a water production branch pipe 17, and the other end of the water production branch pipe 17 is fixedly connected and connected with a water production frame 18. The inner side of the water production frame 18 is respectively fixedly connected and connected with a plurality of connecting pipes 19 arranged in parallel with each other, and the water outlets of the ultrafiltration membrane assembly 34 are respectively connected with the connecting pipes 19. The clean water filtered under the action of siphon enters the water production frame 18 through the collection of the connecting pipe 19 to form a primary collection, and is concentrated and collected in the water production pipe 16 under the transportation of the water production branch pipe 17 to form a secondary collection, and then uniformly discharged through the water production pipeline. Under the action of the water production frame 18, the clean water collection within the overall range is maintained, and there is no need to install additional connecting pipes 27. The clean water can be uniformly discharged through multi-stage collection, which effectively reduces the installation of clean water transportation pipelines, reduces the use cost, and reduces the overall load of the frame.

[0058] Further, such as Fig. 9 and Fig.10 As shown, the gas recoil component includes an air filter cartridge 25, which is used to filter the air from the air intake pipe to prevent impurities in the air from entering the clean water and polluting the clean water, thereby affecting the backwashing effect on the membrane filaments; the two ends of the air filter cartridge 25 are respectively fixedly connected with a docking pipe, and the other end of the docking pipe is respectively fixedly connected with a first switch 26, the first switch 26 close to the hollow frame 14 is fixedly connected and connected to the hollow frame 14, the other end of the other first switch 26 is fixedly connected with a connecting pipe 27, the other end of the connecting pipe 27 is fixedly connected with a one-way valve 28, the other end of the one-way valve 28 is fixedly connected with a three-way pipe 29, the other two ends of the three-way pipe 29 are respectively fixedly connected with a second switch 30 and a third switch 31, the other end of the second switch 30 is fixedly connected with a bent pipe for connecting the disinfection water pipeline, so as to facilitate mixing the disinfection water to backwash the membrane filaments when needed, the lower end of the third switch 31 is fixedly connected with a dispersion pipe 32, the dispersion pipe 32 is fixedly connected to the water production pipeline and part of the dispersion pipe 32 extends to the inside of the water production pipeline;

[0059] like Fig.11As shown, a flat valve is connected between the water production branch pipe 17 and the water production frame 18, and the two ends of the flat valve are fixedly connected to the water production branch pipe 17 and the water production frame 18 respectively. The flat valve includes a flat valve core 20 rotatably connected to the top of the water production branch pipe 17, and the flat valve core 20 is horizontally placed inside the water production branch pipe 17 and has the same diameter. An annular sealing ring is fixedly connected to the circumferential surface of the flat valve core 20 to improve the sealing performance when the water production branch pipe 17 is blocked. A connecting plate 13 is fixedly connected to the bottom of the flat valve core 20, and the bottom of the connecting plate 13 is bent at a right angle in one direction. A transmission shaft 21 is arranged on the lower side of the flat valve core 20, and the two ends of the transmission shaft 21 are rotatably connected to the water production branch pipe 17 respectively. A swing plate 23 is fixedly connected to the surface of the transmission shaft 21 along the radial direction, and the swing plate 2 3 is hinged with a first hinge rod 24, and the other end of the first hinge rod 24 is hinged with the bent part at the bottom of the connecting plate 13. When the transmission shaft 21 rotates, the flat valve core 20 can be pushed to flip under the transmission of the second hinge plate. When the flat valve core 20 swings to a horizontal state, the water production branch pipe 17 is blocked. When the flat valve core 20 swings to an inclined state, the water production branch pipe 17 is unblocked. A motor 22 is fixedly connected to the surface of the water production branch pipe 17. The power output end of the motor 22 is fixedly connected to the transmission shaft 21 coaxially. When the motor 22 rotates, it can drive the transmission shaft 21 to rotate, thereby driving the flat valve core 20 to flip. The motor 22 can select a self-locking stepping motor 22, and the swing of the flat valve core 20 is controlled by controlling the intermittent rotation angle of the motor 22;

[0060] When filtering sewage, the first switch 26, the second switch 30 and the third switch 31 are all in the closed state, and the flat valve is opened for filtering; when backwashing is performed, the flat valve core 20 is controlled to swing to a horizontal state so that the clean water in the water production frame 18 stays in the water production frame 18, the first switch 26 and the third switch 31 are opened, and the gas filtered and purified by the air filter cartridge 25 enters the water production frame 18 through the connecting pipe 27 and the dispersion pipe 32, and mixes with the clean water inside, and can only flow downward in one direction under the action of the one-way valve 28 to avoid backflow. A plurality of air holes are respectively provided on the surface of the dispersion pipe 32 to facilitate gas dispersion. When necessary, the second switch 30 is opened, and the elbow is connected to the disinfection water pipeline so that the disinfection water can enter the clean water together with the gas, and then high pressure is generated during the inflation process to push the clean water to the submerged curtain membrane for backwashing operation.

[0061] like Fig.12 and Fig.13As shown, a fixed frame 33 is provided on the lower side of the water production frame 18, and the fixed frame 33 is fixedly connected to the inner side of the upper frame 1, and a plurality of ultrafiltration membrane assemblies 34 are respectively installed between the fixed frame 33 and the hollow frame 14; a plurality of fixed support plates arranged in parallel to each other are respectively fixedly connected to the inner side of the fixed frame 33, and a plurality of mounting plates 15 arranged in parallel to each other are respectively fixedly connected to the inner side of the hollow frame 14, and a plurality of slots are respectively provided on the surface of the mounting plates 15, and the lower ends of the mounting frames 36 are respectively engaged with the corresponding slots, so as to facilitate the installation of the ultrafiltration membrane assemblies 34 And disassembly, locking pins 49 are fixedly connected to the left and right sides of the upper end of the installation frame 36, and mounting holes are respectively opened on the surfaces of the fixed support plates corresponding to the locking pins 49. The mounting holes and the card slots are arranged correspondingly up and down to keep the ultrafiltration membrane assembly 34 installed vertically, and the locking pins 49 are unidirectionally plugged into the corresponding mounting holes. The connection mode of the unidirectional plug-in of the locking pins 49 further improves the convenience of installation and disassembly of the ultrafiltration membrane assembly 34, which can fully reduce the installation steps and installation time used when the traditional ultrafiltration membrane assembly 34 is installed by screws, thereby improving the installation efficiency.

[0062] Further, such as Fig.18 and Fig.19 As shown, the locking pin 49 is of a hollow structure and has a rectangular opening on its circumferential surface. A ratchet plate 53 that can move along the radial direction of the locking pin 49 is slidably connected to the rectangular opening. The ratchet teeth of the ratchet plate 53 are tilted upward. When the locking pin 49 is inserted into the mounting hole, the ratchet plate 53 is stuck in the opening of the mounting hole through the ratchet teeth, so that the locking pin 49 can only be inserted into the mounting hole in one direction. A center rod 52 is coaxially rotatably connected inside the locking pin 49. The upper end of the center rod 52 is fixedly connected to a control handle 51. The control handle 51 is rotatably connected to the upper end of the mounting frame 36 for easy operation. The personnel rotates the center rod 52, and the upper and lower sides of the surface of the center rod 52 are respectively fixedly connected with the matching plates 55, and the surface of the matching plates 55 is provided with a connecting groove, and the upper and lower sides of the end of the ratchet plate 53 away from the tooth surface are respectively hinged with the driven plates 54, and the other end of the driven plate 54 is respectively fixedly connected with the pin shaft 57, and the pin shaft 57 is respectively slidably fitted in the inner side of the connecting groove. By rotating the center rod 52, the matching plate 55 can be driven to swing, and the ratchet plate 53 is driven to move toward the inside of the locking pin 49 under the sliding cooperation of the pin shaft 57 and the connecting groove, so that the ratchet plate 53 is separated from the opening of the mounting hole, which is convenient for removing the locking pin 49;

[0063] A matching block 56 is slidably connected to the inner side of the connecting groove, and return springs 58 are fixedly connected to the two side surfaces of the matching block 56, and the other ends of the return springs 58 are fixedly connected to the inner wall of the connecting groove. The matching block 56 and the pin shaft 57 The corresponding side is opened as an arc surface. Under the push of the return spring 58, the matching block 56 and the surface of the pin shaft 57 fit together. When the driven plate 54 and the matching plate 55 are parallel and vertical, the return spring 58 is in a compressed state. When the locking pin 49 is inserted, the ratchet plate 53 is subjected to resistance and can move inward, and is reset under the push of the return spring 58, and the ratchet plate 53 is engaged with the mounting hole to prevent the locking pin 49 from being disengaged; when disassembling the mounting frame, the center rod 52 is driven to rotate by rotating the control handle 51. When the center rod 52 rotates, the matching plate 55 is driven to swing and the driven plate 54 is driven to tilt. The matching block 56 is always kept in contact with the pin shaft 57 under the push of the return spring 58, and the ratchet plate 53 is driven to move during the swinging of the matching plate 55, so that the locking pin 49 is convenient to be pulled out.

[0064] The mounting frame 36 includes two upper and lower bases and a fixing plate fixedly connected to both sides between the two water pipes. The corresponding ends of the two bases are provided with grooves for mounting the submerged curtain membrane assembly 59. The upper ends of the upper bases are respectively fixedly connected and connected to the mounting pipes 60. The other ends of the mounting pipes 60 are respectively fixedly connected and connected to the hollow frame 14. The water outlets of the submerged curtain membrane assembly 59 are respectively connected to the mounting pipes 60. The lower bases are clamped with the clamping grooves.

[0065] like Fig.14 and Fig.15 As shown, the shaking component 39 includes a shell fixedly connected to the surface of the mounting plate 15, the impeller 40 and the rotating plate 41 are rotatably connected inside the shell, the inside of the shell is divided into two installation spaces by a partition plate, the rotating plate 41 is located at the mounting hole home on the upper side, the impeller 40 is located at the mounting control on the lower side, the impeller 40 and the rotating plate 41 are coaxially fixedly connected, one side of the surface of the shell is fixedly connected and connected with an air supply pipe 38, the air supply pipe 38 is connected to the installation space on the lower side, the other end of the air supply pipe 38 is fixedly connected and connected to the aeration pipe 37, the other side of the shell surface is fixedly connected and connected with an outlet pipe 47, the outlet pipe 47 is also connected to the installation space on the lower side, the gas passing through the aeration pipe 37 enters the installation space on the lower side of the shell through the air supply pipe 38, and is ejected through the outlet pipe 47, which does not affect the aeration, and can drive the impeller 40 to rotate during the gas flow, thereby driving the rotating plate 41 to rotate;

[0066] The inner side of the mounting plate 15 is slidably connected with a reciprocating rod 42 that can move left and right, and the surface of the reciprocating rod 42 is slidably connected with a limiting frame 46, and the limiting frame 46 is fixedly connected to the mounting plate 15. Under the limit of the limiting frame 46, the reciprocating rod 42 can only move axially back and forth; the surface of the rotating plate 41 is hinged with a second hinged rod 45 at a non-circular center position, and the other end of the second hinged rod 45 is hinged to the reciprocating rod 42, and the mounting frame 36 corresponding to the reciprocating rod 42 is provided with a sliding groove with openings at both ends, and the inner side of the sliding groove is slidably connected with a push rod 61, one end of the push rod 61 is in contact with the reciprocating rod 42, and the other end of the push rod 61 is a spherical structure, and the lower side of the submerged curtain membrane assembly 59 corresponds to the spherical structure A spherical groove meshing with the spherical structure is provided at the position, a spring plate 48 is provided between the other side of the lower end of the submerged curtain membrane assembly 59 and the base, one end of the spring plate 48 is fixedly connected to the base at the lower side, and the other end is pressed against the surface of the submerged curtain membrane assembly 59, when the submerged curtain membrane assembly 59 is installed to the inner side of the installation frame 36, the spherical groove can be meshed with the spherical structure under the action of the spring plate 48, and the stability of the submerged curtain membrane assembly 59 and the installation frame 36 is maintained under the support of the spring plate 48, the surface of the push rod 61 is fixedly connected with a baffle plate 44, the baffle plate 44 is slidably connected with the sliding groove, and the surfaces of the reciprocating rod 42 between the baffle plate 44 and the spherical structure are respectively sleeved with support springs 43;

[0067] When the rotating plate 41 rotates, the reciprocating rod 42 is driven by the second hinged rod 45 to reciprocate, and the push rod 61 is moved during the movement of the reciprocating rod 42. When moving, the push rod 61 can squeeze the support spring 43 through the baffle 44 and reset under the push of the support spring 43. Under the action of the support spring 43, when the reciprocating rod 42 reciprocates, it can drive the push rod 61 to reciprocate synchronously. When the push rod 61 reciprocates, the lower side of the submerged curtain membrane assembly 59 can be driven to slide back and forth under the elastic action of the spring plate 48, which has the effect of driving the submerged curtain membrane assembly 59 to shake rapidly, so that the submerged curtain membrane assembly 59 can control the submerged curtain membrane assembly while aerating the sewage during the process of filtering the sewage. 59 is shaken quickly to reduce the attachment of impurities on the membrane surface without affecting the sewage filtration, thereby maintaining the filtration effect of the submerged curtain membrane assembly 59, and during the backwashing process, while the submerged curtain membrane assembly 59 is kept shaking, the submerged curtain membrane assembly 59 is backwashed by mixing the purified aerated gas with clean water, thereby improving the backwashing effect and reducing the number of backwashing equipment used, thereby saving costs; and by adopting the frame itself to improve gas delivery and clean water delivery, while the entire frame is reinforced by using the clean water frame and the hollow frame 14, clean water and gas are transported, which not only improves the stability and durability of the overall steel structure of the frame, but also reduces the overall load of the frame and reduces the material cost.

[0068] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A frame-integrated ultrafiltration membrane water purification device, comprising a frame, an air inlet pipe, a water inlet pipe, a mud outlet pipe, a water production pipe and an ultrafiltration membrane assembly (34), wherein the water production pipe is connected to the water production ports of a plurality of ultrafiltration membrane assemblies (34), characterized in that: The frame comprises an upper frame (1) and a lower frame (2) fixedly connected to the lower side of the upper frame (1); an ultrafiltration pool is formed inside the upper frame (1); a mud outlet pipe is connected to the bottom of the ultrafiltration pool; a plurality of ultrafiltration membrane assemblies (34) are detachably and vertically installed inside the ultrafiltration pool; the water outlets of the plurality of ultrafiltration membrane assemblies (34) are connected to the water production pipes; and the water outlets of the water production pipes are located on the inner side of the lower frame (2); The ultrafiltration membrane assembly (34) comprises a mounting frame (36) and an immersed curtain membrane assembly (59), wherein the immersed curtain membrane assembly (59) is mounted on the inner side of the mounting frame (36), and flexible protective curtains (35) are respectively mounted on both sides of the immersed curtain membrane assembly (59), and a shaking component (39) is arranged on one side of the bottom of the mounting frame (36), and the air outlet end of the air inlet pipe is connected to the shaking component (39), and when the air inlet pipe is discharged, the shaking component (39) can be driven to push the immersed curtain membrane assembly (59) to shake back and forth; The air inlet pipeline is fixedly connected to the water production pipeline and is connected to a gas recoil component capable of supplying gas to the water production pipeline.

2. A frame-integrated ultrafiltration membrane water purification device as claimed in claim 1, characterized in that: The frame further comprises a water production frame (18) fixedly connected to the upper side of the upper frame (1) and a hollow frame (14) fixedly connected to the bottom of the inner side of the upper frame (1); the water production frame (18) and the hollow frame (14) are respectively hollow structures; the air intake pipe is connected to the hollow frame (14), and the water production pipe is connected to the water production frame (18).

3. A frame-integrated ultrafiltration membrane water purification device as claimed in claim 2, characterized in that: The side surfaces of the upper frame (1) are respectively fixedly connected with a plurality of sealing plates (3); the bottom of the upper frame (1) is respectively fixedly connected with a plurality of collecting plates (8) with openings in the middle; the opening of the mud outlet pipe is connected to the opening in the middle of the collecting plate (8); the inner side of the left end of the upper frame (1) is respectively fixedly connected with two mutually perpendicular partitions (5); a water inlet space is formed by the two partitions (5); the upper end of the water inlet pipe is fixedly connected with the horizontally arranged partition (5) and is connected to the water inlet space; the bottom of the vertically arranged partition (5) is respectively provided with a plurality of water inlets (7).

4. A frame-integrated ultrafiltration membrane water purification device as claimed in claim 3, characterized in that: The mud outlet pipe comprises a mud outlet pipe (9) horizontally arranged on the inner side of the lower frame (2) and mud outlet branch pipes (11) respectively fixedly connected to the bottom openings of the collecting plate (8); the other ends of the mud outlet branch pipes (11) are respectively fixedly connected to and communicated with the mud outlet pipes (9); the collecting plate (8) is in a structure with the middle portion inclined downward; the mud outlet pipe (9) is fixedly connected to and communicated with a vertically arranged gas-water separation pipe (10) on the surface near the opening.

5. The frame-integrated ultrafiltration membrane water purification device according to claim 4, characterized in that: The air intake pipeline comprises an air intake pipe (12), one end of which is fixedly connected and communicated with the hollow frame (14), a plurality of aeration pipes (37) arranged parallel to each other are arranged at the lower end of the hollow frame (14), the two ends of the aeration pipes (37) are respectively fixedly connected and communicated with the two sides of the hollow frame (14), and a plurality of through holes are respectively provided on the surface of the aeration pipes (37).

6. A frame-integrated ultrafiltration membrane water purification device as claimed in claim 5, characterized in that: The water production pipeline comprises a water production pipe (16) horizontally arranged on the inner side of the lower frame (2); the upper side of the water production pipe (16) is fixedly connected and connected to a water production branch pipe (17); the other end of the water production branch pipe (17) is fixedly connected and connected to a water production frame (18); the inner side of the water production frame (18) is respectively fixedly connected and connected to a plurality of connecting pipes (19) arranged in parallel with each other; and the water outlets of the ultrafiltration membrane modules (34) are respectively connected to the connecting pipes (19).

7. The frame-integrated ultrafiltration membrane water purification device according to claim 6, characterized in that: The gas recoil component comprises an air filter cartridge (25), two ends of the air filter cartridge (25) are respectively fixedly connected to a first switch (26), the first switch (26) close to the hollow frame (14) is fixedly connected to and connected to the hollow frame (14), the other end of the other first switch (26) is fixedly connected to a connecting pipe (27), the other end of the connecting pipe (27) is fixedly connected to a one-way valve (28), the other end of the one-way valve (28) is fixedly connected to a three-way pipe (29), the other two ends of the three-way pipe (29) are respectively fixedly connected to a second switch (30) and a third switch (31), the lower end of the third switch (31) is fixedly connected to a dispersion pipe (32), the dispersion pipe (32) is fixedly connected to a water production pipeline, and a portion of the dispersion pipe (32) extends into the water production pipeline; A flat valve is connected between the water production branch pipe (17) and the water production frame (18).

8. The frame-integrated ultrafiltration membrane water purification device according to claim 5, characterized in that: A fixed frame (33) is provided on the lower side of the water production frame (18), the fixed frame (33) is fixedly connected to the inner side of the upper frame (1), and a plurality of ultrafiltration membrane assemblies (34) are respectively installed between the fixed frame (33) and the hollow frame (14); A plurality of mutually parallel fixed support plates are fixedly connected to the inner side of the fixed frame (33), a plurality of mutually parallel mounting plates (15) are fixedly connected to the inner side of the hollow frame (14), a plurality of slots are respectively provided on the surface of the mounting plates (15), the lower ends of the mounting frames (36) are respectively engaged with the corresponding slots, the left and right sides of the upper end of the mounting frame (36) are respectively fixedly connected with locking pins (49), mounting holes are respectively provided on the surfaces of the fixed support plates corresponding to the locking pins (49), and the locking pins (49) are respectively unidirectionally plugged with the corresponding mounting holes.

9. The frame-integrated ultrafiltration membrane water purification device according to claim 8, characterized in that: The locking pin (49) is hollow in structure and has a rectangular opening on its circumferential surface. A ratchet plate (53) is slidably connected to the rectangular opening and can move radially along the locking pin (49). The ratchet teeth of the ratchet plate (53) are tilted upward. A center rod (52) is coaxially rotatably connected to the inside of the locking pin (49). Matching plates (55) are fixedly connected to the upper and lower sides of the surface of the center rod (52). A connecting groove is provided on the surface of the matching plate (55). A driven plate (54) is hingedly connected to the upper and lower sides of one end of the ratchet plate (53) away from the tooth surface. A pin shaft (57) is fixedly connected to the other end of the driven plate (54). The pin shaft (57) is slidably fitted in the inner side of the connecting groove. A matching block (56) is slidably connected to the inner side of the connecting groove, and return springs (58) are fixedly connected to the two side surfaces of the matching block (56), and the other ends of the return springs (58) are fixedly connected to the inner wall of the connecting groove. Under the push of the return spring (58), the matching block (56) and the surface of the pin shaft (57) are fitted, and when the driven plate (54) and the matching plate (55) are parallel and vertical, the return spring (58) is in a compressed state.

10. The frame-integrated ultrafiltration membrane water purification device according to claim 8, characterized in that: The shaking component (39) comprises a shell fixedly connected to the surface of the mounting plate (15), an impeller (40) and a rotating plate (41) are rotatably connected inside the shell, the impeller (40) and the rotating plate (41) are coaxially fixedly connected, one side of the surface of the shell is fixedly connected and connected to an air supply pipe (38), the other end of the air supply pipe (38) is fixedly connected and connected to an aeration pipe (37), and the other side of the surface of the shell is fixedly connected and connected to an air outlet pipe (47); The inner side of the mounting plate (15) is slidably connected to a reciprocating rod (42) capable of moving left and right, and the surface of the rotating plate (41) is hinged with a second hinge rod (45) at a non-center position, and the other end of the second hinge rod (45) is hinged to the reciprocating rod (42). The mounting frame (36) corresponding to the reciprocating rod (42) is provided with a sliding groove with two ends open, and the inner side of the sliding groove is slidably connected to a push rod (61), one end of the push rod (61) contacts the reciprocating rod (42), and the push rod (61) is connected to the inner side of the sliding groove. 1) has a spherical structure at the other end, a spherical groove meshing with the spherical structure is provided at a position corresponding to the spherical structure on the lower side of the submerged curtain membrane assembly (59), a spring plate (48) is provided between the other side of the lower end of the submerged curtain membrane assembly (59) and the mounting frame (36), a baffle (44) is fixedly connected to the surface of the push rod (61), the baffle (44) is slidably connected to the sliding groove, and a support spring (43) is respectively sleeved on the surface of the reciprocating rod (42) between the baffle (44) and the spherical structure.

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