CN114873685A - Ultrafiltration membrane sewage treatment equipment based on non-compact filter element - Google Patents
Ultrafiltration membrane sewage treatment equipment based on non-compact filter element Download PDFInfo
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- CN114873685A CN114873685A CN202210543257.6A CN202210543257A CN114873685A CN 114873685 A CN114873685 A CN 114873685A CN 202210543257 A CN202210543257 A CN 202210543257A CN 114873685 A CN114873685 A CN 114873685A
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- backwashing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses ultrafiltration membrane sewage treatment equipment based on non-compact filter elements, which comprises a plurality of rows of non-compact filter elements arranged side by side, wherein the outlet ends of the plurality of rows of non-compact filter elements are respectively communicated with a plurality of water outlet branch pipes, the water outlet branch pipes are communicated with a water outlet main pipe, the water outlet main pipe is communicated with a water outlet joint, one ends of the plurality of rows of non-compact filter elements, which are far away from the outlet ends, are respectively communicated with a plurality of backwashing branch pipes, the backwashing branch pipes are communicated with a backwashing main pipe, the backwashing main pipe is communicated with a backwashing joint, each non-compact filter element is arranged in an assembly box, two opposite ends of the assembly box are respectively provided with a first cover plate and a second cover plate, and the first cover plate and the second cover plate are respectively positioned at the two axial ends of each non-compact filter element. The invention improves the filtering effect, reduces the frequency of dirty blockage of the body, prolongs the service life, and simultaneously improves the backwashing efficiency and the backwashing effect. The invention is suitable for the technical field of sewage treatment.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to ultrafiltration membrane sewage treatment equipment and a sewage treatment method based on a non-compact filter element.
Background
At present, in the production and processing, the inevitable can produce sewage, in order to avoid sewage to cause pollution to the environment, sewage needs to be treated for reach emission standard, or can carry out cyclic utilization according to specific demand, and then avoid the waste of water resource. The existing filter element with the ultrafiltration membrane is compact, namely, the multi-layer filter layers forming the filter element adopt a tightly winding mode, and because no gap exists between the filter layers, impurities in sewage easily block the local position of the filter element, so that the outer filter layer and the inner filter layer at the position are blocked, and the filtering effect is reduced. Moreover, the compact filter element has high filth blockage frequency and weak backwashing dirt cleaning capacity, so that the backwashing effect is poor. Therefore, a sewage treatment apparatus is needed to improve the filtering effect, reduce the frequency of filth blockage of the sewage treatment apparatus, prolong the service life, and simultaneously improve the backwashing efficiency and the backwashing effect.
Disclosure of Invention
The invention provides an ultrafiltration membrane sewage treatment device based on a non-compact filter element, which is used for improving the filtering effect, reducing the frequency of filth blockage of a body, prolonging the service time and simultaneously improving the backwashing efficiency and the backwashing effect.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an milipore filter sewage treatment device based on non-compact filter core, includes the non-compact filter core that the multirow was arranged side by side, and the exit end of multirow non-compact filter core communicates respectively has a plurality of water outlet branch pipes, and these water outlet branch pipes communicate has a water outlet header pipe, in the last intercommunication of water outlet header pipe has a water connector, and the one end of keeping away from the exit end in the non-compact filter core of multirow communicates respectively has a plurality of back flush branch pipes, and these back flush branch pipes communicate has a back flush header pipe, in the last intercommunication of back flush header pipe has a back flush connector, each the non-compact filter core is installed in the assembly box, two looks remote terminals of assembly box are provided with first apron and second apron respectively, first apron and second apron are located the axial both ends of each non-compact filter core respectively.
Further, the assembly box comprises a sealed type peripheral wall, a sewage inlet joint and a sludge discharge port joint are respectively formed on two opposite sides of the sealed type peripheral wall, the sewage inlet joint is located at the upper part of the sealed type peripheral wall, the sludge discharge port joint is located at the lower part of the sealed type peripheral wall, and the sewage inlet joint and the sludge discharge port joint are located between the first cover plate and the second cover plate.
Furthermore, the assembly box comprises a liquid permeable peripheral wall, liquid permeable holes are distributed on the liquid permeable peripheral wall, and the liquid permeable peripheral wall and the non-compact filter elements are immersed in the sewage pool.
Furthermore, the non-compact filter element comprises a filter element body, wherein a water outlet pipe is coaxially arranged at the center of the filter element body, one end of the water outlet pipe extends out of the filter element body and is communicated with a corresponding water outlet branch pipe, the other end of the water outlet pipe is sealed and forms a sealed end, and a plurality of water outlet holes are formed in the position, located in the filter element body, of the water outlet pipe at intervals.
Furthermore, the filter element body comprises a plurality of filter cartridges which are coaxially arranged along the radial direction inwards in sequence, an overflowing gap is formed between the adjacent filter cartridges, a first adjusting cover and a second adjusting cover which are driven by external force and move along the axial direction of the filter element body are respectively assembled at the two axial ends of the filter element body, a first connecting pipe is constructed on the first adjusting cover, the first connecting pipe is sleeved outside the water outlet pipe, a second connecting pipe is constructed on the second adjusting cover, the second connecting pipe is sleeved outside the sealing end, and the second connecting pipe is communicated with the corresponding backwashing branch pipe.
Furthermore, the first connecting pipe and the second connecting pipe are respectively connected with the first cover plate and the second cover plate, a plurality of mounting plates are respectively constructed at two ends of the assembly box, hydraulic oil cylinders are respectively mounted on the mounting plates, and hydraulic rods of the hydraulic oil cylinders are connected with the corresponding first cover plate or the second cover plate and used for driving the first cover plate or the second cover plate to move along the axis of the filter element body.
Furthermore, each filter cylinder comprises a cylindrical support net and a filter membrane attached to the inner wall or the outer wall of the support net, the filter membrane of the filter cylinder positioned at the innermost side in the filter cylinder of the filter core body is an ultrafiltration membrane, and the two axial ends of the adjacent support net and the filter cylinder positioned at the innermost side are respectively connected through a plurality of connecting pieces.
Furthermore, the connecting piece comprises rotational flow blades, each rotational flow blade is positioned at a position within two ends of the supporting net, a plurality of annular clamping grooves with coincident axes are formed at one ends of the first adjusting cover and the second adjusting cover, which are close to each other, and the end part of each supporting net can be clamped in the corresponding annular clamping groove.
Furthermore, the inner side of the swirl vane of the innermost filter cartridge is fixedly connected with a fixed ring or a rotating ring, the two axial ends of the water outlet pipe are respectively provided with a fixed flange or a check ring, and the fixed flange is fixedly connected with the corresponding fixed ring or the rotating ring is rotatably connected with the corresponding check ring.
Furthermore, a plurality of backwashing holes are formed in the water outlet pipe and positioned at the first connecting pipe, the first adjusting cover moves along the axial direction of the filter element body under the driving of external force and opens and closes the backwashing holes, and when the backwashing holes are opened, the backwashing holes are communicated with each overflowing gap; and a plunger matched with the second connecting pipe is constructed at one end of the water outlet pipe close to the second adjusting cover, a conical head is constructed at one end of the plunger far away from the water outlet pipe, and the second adjusting cover moves along the axial direction of the filter element body under the driving of external force and opens and closes the second connecting pipe.
Due to the adoption of the structure, compared with the prior art, the invention has the technical progress that: the invention adopts the non-compact filter element to filter the impurities in the sewage through the non-compact filter element, and structurally avoids the tight adhesion of the filter layers, namely a certain space exists between the filter layers, so that the sewage is uniformly distributed on the next filter layer during the multi-stage filtration and uniformly passes through the next filter layer, thereby avoiding the condition that the position of the filter core cannot be filtered due to the local filth blockage of the outer layer of the existing compact filter element; according to the invention, a plurality of non-compact filter elements are arranged in the assembly box, so that a filter unit is formed, on one hand, the filtering efficiency is improved, and on the other hand, the operation of installation, lifting, transfer and the like is facilitated; in conclusion, the invention improves the filtering effect, reduces the frequency of filth blockage of the body, prolongs the service life, and simultaneously improves the backwashing efficiency and the backwashing effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;
FIG. 3 is a schematic structural diagram of another embodiment of the present invention;
FIG. 4 is a schematic view of the present invention with the mounting box removed;
FIG. 5 is a schematic view of a non-compact filter cartridge according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a non-compact filter element according to an embodiment of the present invention after disassembly;
FIG. 7 is a cross-sectional view of an axial configuration of a non-compact filter cartridge in accordance with an embodiment of the present invention;
FIG. 8 is an enlarged view of the structure of portion A in FIG. 7;
FIG. 9 is an enlarged view of the structure of the portion B in FIG. 7;
FIG. 10 is a partial cross-sectional view of a non-compact filter cartridge according to an embodiment of the present invention;
FIG. 11 is a schematic view of a portion of a non-compact filter cartridge according to an embodiment of the present invention;
FIG. 12 is the schematic view of FIG. 11 with the outlet pipe removed;
FIG. 13 is a schematic view of the connection between the outlet pipe and the mounting flange in FIG. 11;
FIG. 14 is a schematic view of a portion of a non-compact filter element configured with a rotating ring according to an embodiment of the present invention after a water outlet pipe is removed;
FIG. 15 is a schematic view of the structure of the embodiment of the present invention illustrating the connection between the water outlet pipe and the retainer ring;
FIG. 16 is a schematic structural diagram of a first adjusting cover according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of the operation of sewage purification and backwashing according to the embodiment of the present invention.
Labeling components: 100-sealing type peripheral wall, 101-first cover plate, 102-second cover plate, 103-sewage inlet joint, 104-sludge discharge port joint, 105-mounting plate, 106-hydraulic oil cylinder, 200-water outlet pipe system, 201-water outlet main pipe, 202-water outlet joint, 203-water outlet branch pipe, 300-backwashing pipe system, 301-backwashing main pipe, 302-backwashing joint, 303-backwashing branch pipe, 400-non-compact filter element, 401-filter element body, 4011-support net, 4012-filter membrane, 4013-overflowing gap, 4014-swirl vane, 4015-connecting piece, 4016-sealing edge, 4017-rotating ring, 4018-fixing ring, 402-second adjusting cover, 4021-second cover body, 4022-second connecting pipe, 4023-ring-shaped clamping groove, 403-water outlet pipe, 4031-water outlet hole, 4032-backwashing hole, 4033-plunger, 4034-conical head, 4035-fixed flange, 4036-retaining ring, 404-first adjusting cover, 4041-first sealing cover body, 4042-first connecting pipe, 500-liquid-permeable peripheral wall, 600-water suction pump, 601-inlet pipe, 602-outlet pipe, 603-cleaning water inlet, 604-cleaning water outlet manifold, 605-first cleaning water outlet branch pipe, 606-second cleaning water outlet branch pipe, 607-first control valve, 608-second control valve, 609-third control valve, 610-fourth control valve, 611-fifth control valve, 612-sixth control valve, 613-high-pressure gas inlet, 614-seventh control valve, 615-sewage drain, 616-eighth control valve.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses ultrafiltration membrane sewage treatment equipment based on non-compact filter elements, which comprises an assembly box, a water outlet pipe system 200, a backwashing pipe system 300 and a plurality of rows of non-compact filter elements 400 as shown in figures 1 to 4, wherein the plurality of rows of non-compact filter elements 400 are arranged side by side to form a filtering mechanism. The water outlet pipe system 200 comprises a water outlet main pipe 201, a water outlet joint 202 and a plurality of water outlet branch pipes 203, wherein the outlet end of each row of non-compact filter elements 400 is respectively communicated with the corresponding water outlet branch pipe 203, each water outlet branch pipe 203 is communicated with the water outlet main pipe 201, the water outlet joint 202 is communicated with the water outlet main pipe 201, and clean water filtered by the non-compact filter elements 400 is pumped by a water pump 600 to be sequentially passed through the water outlet branch pipes 203, the water outlet main pipe 201 and the water outlet joint 202 and collected. The backwashing pipe system 300 comprises a backwashing main pipe 301, a backwashing joint 302 and a plurality of backwashing branch pipes 303, wherein one end of each row of non-compact filter elements 400, which is far away from the outlet end, is respectively communicated with the corresponding backwashing branch pipes 303, each backwashing branch pipe 303 is mutually communicated with the backwashing main pipe 301, and the backwashing joint 302 is communicated with the backwashing main pipe 301. Each non-compact filter element 400 of the invention is installed in an assembly box, and two opposite ends of the assembly box are respectively provided with a first cover plate 101 and a second cover plate 102, wherein the first cover plate 101 and the second cover plate 102 are respectively positioned at two axial ends of the filtering mechanism, the invention realizes that each non-compact filter element 400 is immersed in sewage by communicating the assembly box with a sewage pool or placing the assembly box in the sewage pool, power is provided by a suction pump 600, so that the sewage is filtered by the non-compact filter element 400, and the filtered clean water is pumped out by a water outlet pipe system 200. During backwashing, cleaning water can enter each non-compact filter element 400 through the water outlet pipe system 200 and/or the backwashing pipe system 300 through the switching pipeline, and the cleaning water gradually enters the sewage along the radial direction of the non-compact filter element 400 outwards, so that the cleaning water carries impurities to separate from the non-compact filter element 400, and the backwashing purpose is realized; the cleaning water can also clean the non-compact filter element 400 in the axial direction of the non-compact filter element 400, and the cleaning mode has large flow and pressure and strong cleaning effect on the impurities attached to the non-compact filter element 400. The working principle and the advantages of the invention are as follows: the invention adopts the non-compact filter element 400, and filters the impurities in the sewage through the non-compact filter element 400, thereby structurally avoiding the tight adhesion of the filter layers, namely, a certain space exists between the filter layers, being convenient for the sewage to be uniformly distributed on the next filter layer during the multi-stage filtration and uniformly pass through the next filter layer, avoiding the condition that the outer layer of the existing compact filter element is locally dirty and blocked to cause that the position of the filter element can not be filtered, and cleaning water passes through the space between the filter layers during the back washing to fully wash the surface of the filter layer; according to the invention, a plurality of non-compact filter elements 400 are arranged in the assembly box, so that a filter unit is formed, on one hand, the filtering efficiency is improved, and on the other hand, the operation of installation, lifting, transferring and the like is facilitated; in conclusion, the invention improves the filtering effect, reduces the frequency of filth blockage of the body, prolongs the service life, and simultaneously improves the backwashing efficiency and the backwashing effect.
As a preferred embodiment of the present invention, as shown in fig. 1-2, the mounting box includes a sealed-type peripheral wall 100, and a sewage inlet joint 103 and a sludge discharge joint 104 are respectively configured on two opposite sides of the sealed-type peripheral wall 100, wherein the sewage inlet joint 103 is located at an upper portion of the sealed-type peripheral wall 100, the sludge discharge joint 104 is located at a lower portion of the sealed-type peripheral wall 100, and the sewage inlet joint 103 and the sludge discharge joint 104 are located between a first cover plate 101 and a second cover plate 102. The assembly box of the embodiment adopts the sealing type peripheral wall 100, so that the adaptability of the assembly box is enhanced, and different sewage treatment environments are facilitated, namely, the assembly box can be connected with sewage outlets of various devices through the sewage inlet connector 103 according to requirements. The sludge discharge port 104 of this embodiment is used to discharge the filtered impurities to prevent the non-compact filter element 400 from being clogged by the impurities.
As a preferred embodiment of the present invention, as shown in fig. 3, the assembly box includes a liquid permeable peripheral wall 500, liquid permeable holes are distributed in the liquid permeable peripheral wall 500, and the liquid permeable peripheral wall 500 and each of the non-compact filter elements 400 are immersed in the sewage reservoir. The assembly box of this embodiment adopts this kind of setting, can be with whole submergence in the sewage pond, makes it fully contact with sewage, has improved the filtration efficiency that sewage was by non-compact filter core 400.
As a preferred embodiment of the present invention, as shown in fig. 5, the non-compact filter element 400 includes a filter element body 401, a water outlet pipe 403 is installed at the center of the filter element body 401, the water outlet pipe 403 is coincident with the axis of the filter element body 401, one end of the water outlet pipe 403 extends out of the filter element body 401, and the end of the water outlet pipe 403 is communicated with the corresponding water outlet branch pipe 203. In this embodiment, the other end of the water outlet pipe 403 is sealed and forms a sealed end, a plurality of water outlet holes 4031 are spaced on the water outlet pipe 403, and the water outlet holes 4031 are located at positions where the water outlet pipe 403 is located in the filter element body 401. After being filtered by the filter element body 401, the sewage enters the interior of the water outlet pipe 403 through the water outlet holes 4031 of the water outlet pipe 403, and then is discharged through the water outlet branch pipe 203. The specific structure of the filter element body 401 is that, as shown in fig. 6-7 and 10, the filter element body 401 includes a plurality of filter cartridges with different radial lengths, the filter cartridges are sequentially arranged along the radial direction of the filter element body 401, the axial lines of the filter cartridges are overlapped, and a flow passage gap 4013 is formed between adjacent filter cartridges. When filtering sewage, sewage loops through every cartridge filter to in entering corresponding clearance 4013 that overflows, through overflowing the back that flow equalizes of clearance 4013, the next cartridge filter of rethread, the local area at the cartridge filter can not concentrated on to the miscellaneous dirt in the sewage like this, has reduced the dirty frequency of filter core body 401. When the filter element body 401 is backwashed, cleaning water sequentially passes through the filter cartridges from inside to outside and enters the corresponding overflowing gaps 4013, the corresponding peripheral walls of the adjacent filter cartridges are cleaned by the cleaning water in the overflowing gaps 4013, the cleaning sufficiency and efficiency are improved, and finally the cleaning water carries impurities and is discharged out of the filter element body 401. In the present embodiment, a first adjustment cover 404 and a second adjustment cover 402 are respectively mounted at both axial ends of the cartridge body 401, and the first adjustment cover 404 and the second adjustment cover 402 are driven by external force to move in the axial direction of the cartridge body 401. In this embodiment, the first adjusting cover 404 and the second adjusting cover 402 respectively include a first cover body 4041 and a second cover body 4021, a first connecting pipe 4042 is configured on the first cover body 4041, and the first connecting pipe 4042 is sleeved outside the water outlet pipe 403; a second connecting pipe 4022 is formed on the second cover body 4021, the second connecting pipe 4022 is sleeved outside the sealed end of the water outlet pipe 403, the second connecting pipe 4022 is communicated with the corresponding back flush branch pipe 303, and the first connecting pipe 4042 and the second connecting pipe 4022 are respectively connected with the first cover plate 101 and the second cover plate 102. In order to realize the axial movement of the first adjusting cover 404 and the second adjusting cover 402 along the filter element body 401, so that the cleaning water can flow along the axial direction of the filter element body 401 in the flow passage gap 4013, and perform the cleaning operation, as shown in fig. 1-3, a plurality of mounting plates 105 are respectively configured at two ends of the assembly box, a hydraulic cylinder 106 is respectively mounted on each mounting plate 105, wherein a hydraulic rod of each hydraulic cylinder 106 is connected with the corresponding first cover plate 101 or second cover plate 102, the hydraulic cylinder 106 is used for driving the first cover plate 101 or second cover plate 102 to move along the axis of the filter element body 401, so that the first cover plate 101 or second cover plate 102 drives the corresponding first adjusting cover 404 and/or second adjusting cover 402 to move, so that a flow passage space is formed between the end of the filter element body 401 sealed by the first adjusting cover 404 and/or second adjusting cover 402 and the first adjusting cover 404 and/or second adjusting cover 402, wash water through outlet pipe 403 get into in the space that overflows, later by overflowing in the space distribution to each overflows clearance 4013 again, and then wash the inner wall and the outer wall of cartridge filter, partly wash water by the radial outside seepage flow of filter core body 401, and then clear away the miscellaneous dirt on the non-inner wall of cartridge filter and the outer wall.
As a preferred embodiment of the present invention, as shown in fig. 7-9, a plurality of back-washing holes 4032 are formed in the water outlet pipe 403 and located at the first connecting pipe 4042, the first adjusting cover 404 is driven by external force to move along the axial direction of the filter element body 401 and open and close the back-washing holes 4032, and when the back-washing holes 4032 are opened, the back-washing holes 4032 are communicated with the flow-through gaps 4013. A plunger 4033 is formed at one end of the water outlet pipe 403 close to the second adjusting cover 402, the outer peripheral wall of the plunger 4033 is matched with the inner wall of the second connecting pipe 4022, a conical head 4034 is formed at one end of the plunger 4033 far away from the water outlet pipe 403, and the second adjusting cover 402 moves along the axial direction of the filter element body 401 under the driving of external force and opens and closes the second connecting pipe 4022. In this embodiment, three backwashing manners may be adopted, wherein in the first backwashing manner, the first adjusting cover 404 and the second adjusting cover 402 keep the axial two ends of the filter element body 401 sealed, and the cleaning water enters the water outlet pipe 403 and gradually flows outwards along the radial direction of the filter element body 401, so as to complete the cleaning and decontamination operation of the filter element body 401; secondly, the first adjusting cover 404 and the second adjusting cover 402 move in a direction away from each other along with the first cover body and the second cover body, so that two axial ends of the filter element body 401 respectively form an overflow space, wherein one overflow space is communicated with the water outlet pipe 403 through the backwashing hole 4032 and the water outlet hole 4031; in the other overflow space, the plunger 4033 is separated from the second connecting pipe 4022, so that the second connecting pipe 4022 is communicated with the overflow space, most of cleaning water enters each overflow gap 4013 through the backwashing holes 4032 of the water outlet pipe 403, then each filter cartridge is flushed by direct current, and finally the cleaning water is discharged from the second connecting pipe 4022; thirdly, the positions of the first adjusting cover 404 and the second adjusting cover 402 are the same as those of the first adjusting cover 404 and the second adjusting cover 402 in the second backwashing mode, and the cleaning water is convected into each overflowing gap 4013 through the water outlet pipe 403 and the backwashing pipe system 300 respectively, so that the water flow generates convection in the overflowing gaps 4013, and under the disturbance caused by the convection of the cleaning water, the impurities are easy to separate from the filter cylinder, thereby improving the cleaning effect, and the impurities after cleaning can be discharged from the second connecting pipe 4022 by controlling whether the backwashing pipe system 300 supplies water or not, and can also be discharged outwards along the radial direction of the filter element body 401. All the above-mentioned three kinds of back flush modes of this embodiment can let in high-pressure gas, and high-pressure gas gets into in overflowing clearance 4013 with the form of bubble to burst in overflowing clearance 4013, and then make the stubborn dirt of adnexed on the cartridge filter break away from the cartridge filter under the impact that the bubble burst.
As a preferred embodiment of the present invention, as shown in fig. 10, each filter cartridge includes a cylindrical support net 4011 and a filter membrane 4012 attached to an inner wall or an outer wall of the support net 4011, and the filter membrane 4012 of the filter cartridge located at the innermost side in the filter cartridge of the filter cartridge body 401 is an ultrafiltration membrane, and the axial both ends of the adjacent support net 4011 and the innermost filter cartridge are respectively connected by a plurality of connecting members 4015, so that the filter cartridges are connected together, and in this embodiment, a sealing edge 4016 is respectively configured at the axial both ends of each support net 4011, and the outer edges of the first adjustment cover 404 and the second adjustment cover 402 are respectively assembled with the corresponding sealing edges 4016.
As a preferred embodiment of the present invention, in order to improve the efficiency of backwashing, as shown in fig. 11, the plurality of connecting elements 4015 are all cyclone blades 4014, and these cyclone blades 4014 are all located within both ends of the supporting net 4011, as shown in fig. 16, a plurality of annular clamping grooves 4023 with coinciding axes are formed at one end of the first adjusting cover 404 and the second adjusting cover 402 close to each other, and the end of each supporting net 4011 can be clamped in the corresponding annular clamping groove 4023. After the washing water passes through the overflowing space, the washing water entering each overflowing gap 4013 is in a swirling state under the swirling action of the swirling vanes 4014, so that impurities on the inner wall and the outer wall of the filter cartridge are fully removed under the swirling action. Two connection modes are adopted for the filter element body 401 and the water outlet pipe 403, the first connection mode is that as shown in fig. 11-13, fixing rings 4018 are fixedly connected to the inner sides of the swirl vanes 4014 of the filter cartridge at the innermost side, fixing flanges 4035 are respectively arranged at the two axial ends of the water outlet pipe 403, and the fixing flanges 4035 are fixedly connected with the corresponding fixing rings 4018, so that the filter element body 401 is fixedly connected with the water outlet pipe 403, and the filter element body 401 is cleaned by cleaning water in a swirl manner; secondly, as shown in fig. 14 to 15, a rotating ring 4017 is fixedly connected to the inner side of a swirl blade 4014 of the innermost filter cartridge, retainer rings 4036 are respectively arranged at two axial ends of a water outlet pipe 403, and the rotating ring 4017 is rotatably connected to the corresponding retainer ring 4036, so that the filter element body 401 and the water outlet pipe 403 are rotatably connected, and in the process of cleaning the filter element body 401 by cleaning water swirl and cleaning the filter element body 401, the filter element body 401 and the water outlet pipe 403 rotate relatively, so that the filter element body 401 rotates by a certain angle after the cleaning is completed, and in the subsequent sewage treatment process, the local position of the filter element body 401 is prevented from being constantly contacted with a region with more impurities, and the frequency of the impurities is reduced.
As a preferred embodiment of the present invention, as shown in fig. 17, a piping diagram of this embodiment is that one inlet pipe 601 is connected to an inlet of a water pump 600, the inlet pipe 601 is connected to a water outlet joint 202, an outlet of the water pump 600 is connected to an outlet pipe 602, the outlet pipe 602 is communicated with a wash water outlet manifold 604, a high-pressure gas inlet 613 is communicated to the wash water outlet manifold 604, an outlet end of the wash water outlet manifold 604 is communicated with a first wash water outlet branch pipe 605 and a second wash water outlet branch pipe 606, the first wash water outlet branch pipe 605 is communicated with the inlet pipe 601, the second wash water outlet branch pipe 606 is communicated with a backwash joint 302, a sewage drain 615 is communicated to the second wash water outlet branch pipe 606, and a wash water inlet 603 is communicated between the first wash water outlet branch pipe 605 and the water pump 600 on the inlet pipe 601. In this embodiment, a first control valve 607 is installed in the inlet pipe 601 between the first wash water outlet branch pipe 605 and the outlet water connection 202, a third control valve 609 is installed in the inlet pipe 601 between the first wash water outlet branch pipe 605 and the wash water inlet 603, a second control valve 608 is installed in the outlet end of the outlet pipe 602, a fifth control valve 611 is installed in the first wash water outlet branch pipe 605, a fourth control valve 610 is installed in the wash water inlet 603, a sixth control valve 612 is installed in the second wash water outlet branch pipe 606, a seventh control valve 614 is installed in the high pressure gas inlet 613, and an eighth control valve 616 is installed in the drain 615. When the sewage is purified, the first control valve 607, the third control valve 609, and the second control valve 608 are opened, and the remaining valves are closed. During backwashing, the second control valve 608 and the third control valve 609 are closed, the fourth control valve 610, the fifth control valve 611 and the first control valve 607 are opened, and the seventh control valve 614, the sixth control valve 612 and the eighth control valve 616 can be opened or closed according to specific conditions, so as to realize the three backwashing modes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an milipore filter sewage treatment device based on non-compact filter core which characterized in that: the filter comprises a plurality of rows of non-compact filter elements which are arranged side by side, wherein the outlet ends of the rows of non-compact filter elements are respectively communicated with a plurality of water outlet branch pipes, the water outlet branch pipes are communicated with a water outlet main pipe, the water outlet main pipe is communicated with a water outlet joint, one ends of the rows of non-compact filter elements, which are far away from the outlet ends, are respectively communicated with a plurality of backwashing branch pipes, the backwashing branch pipes are communicated with a backwashing main pipe, the backwashing main pipe is communicated with a backwashing joint, each non-compact filter element is installed in an assembly box, two opposite ends of the assembly box are respectively provided with a first cover plate and a second cover plate, and the first cover plate and the second cover plate are respectively positioned at two axial ends of each non-compact filter element.
2. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 1, wherein: the assembly box comprises a sealed type peripheral wall, a sewage inlet joint and a sludge discharge port joint are respectively formed on two opposite sides of the sealed type peripheral wall, the sewage inlet joint is positioned on the upper portion of the sealed type peripheral wall, the sludge discharge port joint is positioned on the lower portion of the sealed type peripheral wall, and the sewage inlet joint and the sludge discharge port joint are positioned between a first cover plate and a second cover plate.
3. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 1, wherein: the assembly box comprises a liquid permeable peripheral wall, liquid permeable holes are distributed on the liquid permeable peripheral wall, and the liquid permeable peripheral wall and each non-compact filter element are immersed in the sewage pool.
4. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 1, wherein: the non-compact filter element comprises a filter element body, wherein a water outlet pipe is coaxially arranged at the center of the filter element body, one end of the water outlet pipe extends out of the filter element body and is communicated with a corresponding water outlet branch pipe, the other end of the water outlet pipe is sealed and forms a sealed end, and a plurality of water outlet holes are formed in the position, located in the filter element body, of the water outlet pipe at intervals.
5. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 4, wherein: the filter element body comprises a plurality of filter cartridges which are coaxially arranged along the radial direction inwards in sequence, an overflowing gap is formed between every two adjacent filter cartridges, a first adjusting cover and a second adjusting cover which are driven by external force and move along the axial direction of the filter element body are respectively assembled at the two axial ends of the filter element body, a first connecting pipe is constructed on the first adjusting cover, the first connecting pipe is sleeved outside the water outlet pipe, a second connecting pipe is constructed on the second adjusting cover, the second connecting pipe is sleeved outside the sealing end, and the second connecting pipe is communicated with the corresponding backwashing branch pipe.
6. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 5, wherein: the first connecting pipe and the second connecting pipe are respectively connected with the first cover plate and the second cover plate, a plurality of mounting plates are respectively constructed at two ends of the assembly box, hydraulic oil cylinders are respectively mounted on the mounting plates, and hydraulic rods of the hydraulic oil cylinders are connected with the corresponding first cover plate or the second cover plate and are used for driving the first cover plate or the second cover plate to move along the axis of the filter element body.
7. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 5, wherein: each filter cartridge includes the supporting network of tube-shape and adheres to the filter membrane on supporting network inner wall or outer wall, and the filter membrane that is located the most inboard filter cartridge in the filter cartridge of filter core body is the milipore filter, and the axial both ends of adjacent supporting network and the most inboard filter cartridge are connected through a plurality of connecting pieces respectively.
8. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 7, wherein: the connecting piece comprises rotational flow blades, each rotational flow blade is positioned at the position within two ends of the supporting net, a plurality of annular clamping grooves with coincident axes are formed at one ends of the first adjusting cover and the second adjusting cover, which are close to each other, and the end part of each supporting net can be clamped in the corresponding annular clamping groove.
9. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 8, wherein: the inner sides of the swirl vanes of the innermost filter cartridges are fixedly connected with fixing rings or rotating rings, the two axial ends of the water outlet pipe are respectively provided with a fixing flange or a retaining ring, and the fixing flanges are fixedly connected with the corresponding fixing rings or the rotating rings are rotatably connected with the corresponding retaining rings.
10. The ultrafiltration membrane sewage treatment device based on the non-compact filter element according to claim 5, wherein: a plurality of backwashing holes are formed in the water outlet pipe and positioned at the first connecting pipe, the first adjusting cover moves along the axial direction of the filter element body under the driving of external force and opens and closes the backwashing holes, and when the backwashing holes are opened, the backwashing holes are communicated with each overflowing gap; and a plunger matched with the second connecting pipe is constructed at one end of the water outlet pipe close to the second adjusting cover, a conical head is constructed at one end of the plunger far away from the water outlet pipe, and the second adjusting cover moves along the axial direction of the filter element body under the driving of external force and opens and closes the second connecting pipe.
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| CN202210543257.6A CN114873685B (en) | 2022-05-19 | 2022-05-19 | Ultrafiltration membrane sewage treatment equipment based on non-compact filter element |
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| CN114873685B (en) | 2022-11-08 |
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Address after: No.109 Jinshui Road, Jinshui District, Zhengzhou City, Henan Province, 450000 Patentee after: Jianghe Anlan Engineering Consulting Co.,Ltd. Address before: No.109 Jinshui Road, Jinshui District, Zhengzhou City, Henan Province, 450000 Patentee before: Jianghe Engineering Inspection Co.,Ltd. |
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