CN109758920B - Laminar flow type hollow fiber filter membrane group device - Google Patents
Laminar flow type hollow fiber filter membrane group device Download PDFInfo
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- CN109758920B CN109758920B CN201910176609.7A CN201910176609A CN109758920B CN 109758920 B CN109758920 B CN 109758920B CN 201910176609 A CN201910176609 A CN 201910176609A CN 109758920 B CN109758920 B CN 109758920B
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Abstract
The invention belongs to the technical field of filtering membranes, and particularly relates to a laminar flow type hollow fiber membrane module device. The laminar flow type hollow fiber filter membrane module comprises a laminar flow type hollow fiber filter membrane, a membrane module support and an aerator pipe, wherein the laminar flow type hollow fiber filter membrane is fixed in the membrane module support, and the aerator pipe is positioned at the bottom of the membrane module support. The laminar flow type hollow fiber filter membrane module device has higher air washing efficiency and more stable operation.
Description
Technical Field
The invention belongs to the technical field of filtering membranes, and particularly relates to a laminar flow type hollow fiber membrane module device.
Background
The growth of the film output value of China is more than 20% in each year from 2010 to 2018. The membrane bioreactor sewage treatment technology is an advanced sewage treatment technology which is mainly popularized in China at present. And the hollow fiber filtering membrane is the core component of the membrane bioreactor system.
The structural forms of the hollow fiber filtering membrane mainly comprise the following forms. For example, Mitsubishi corporation, Japan, CN105536544 discloses a hollow fiber membrane which is composed of upper and lower water collecting membrane shells and a central membrane filament, and is characterized in that it is not limited by the use and the pressure resistance of the hollow fiber membrane can be improved by a simple structure. The hollow fiber filter membrane is a common membrane product on the market at present.
LG electronic corporation, WO2013/105795, discloses a hollow fiber membrane sheet comprising a hollow fiber membrane, a support, a water collector, an extension pipe and an air diffusion unit. The use of air diffusion units to direct air diffusion is more versatile in order to more effectively remove contaminants from the hollow fiber membranes. However, the air diffusion units are distributed and arranged in the vertical direction, in the practical application process, due to the relation of water pressure, the air diffusion pipes close to the water surface in the height direction are easy to discharge due to the fact that the water pressure is small, and the air diffusion pipes far away from the water surface in the height direction are difficult to discharge due to the fact that the water pressure is large and the air pressure is insufficient, so that the effect of removing pollutants is influenced due to the fact that aeration is not uniform easily.
PCT/JP2014/061641 by tokyo corporation discloses a cylindrical hollow fiber membrane sheet comprising a housing, a hollow fiber membrane housed in the housing, a fixing portion, a holding portion, a sealing portion, and the like. The floating of the hollow fiber membrane during air washing in cross-flow filtration can be suppressed.
Through the records of products sold in the market and relevant literature data, the conventional hollow fiber filtering membrane has the problems of low membrane filament scrubbing efficiency by aeration, low membrane shell overall strength, easy water leakage at the bonding part of the membrane shell, difficult detection of a leakage point and the like.
Chinese patent CN204342505U discloses an MBR membrane module capable of effectively removing solid contaminants represented by hair fibers, which is also one of the structures of the conventional membrane module, and the structure has the disadvantages of relatively low air washing efficiency, easy mud accumulation in the middle of the membrane and unstable operation.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide the laminar flow type hollow fiber filter membrane module which has the advantages of reasonable membrane structure, high overall strength of membrane filaments, membranes and membrane modules, back washing resistance, uniform aeration effect of the membrane modules, high aeration efficiency, slow flux attenuation, difficult mud accumulation, strong overall anti-pollution capacity and convenient maintenance.
The technical scheme of the invention is as follows:
membrane module device part
The laminar flow type hollow fiber filtration membrane module device comprises a laminar flow type hollow fiber filtration membrane, a membrane module support and an aeration pipe, wherein the laminar flow type hollow fiber filtration membrane is fixed in the membrane module support, and the aeration pipe is positioned at the bottom of the membrane module support.
Preferably, laminar flow type hollow fiber filter membrane include, membrane shell, glue and membrane silk, the membrane shell includes membrane silk encapsulation groove, collector pipe and produces the water mouth, the membrane silk passes through encapsulation glue seal dress is in the membrane silk encapsulation groove, membrane silk encapsulation groove through membrane shell bonding glue with the collector pipe bonds together, the collector pipe with produce the water mouth and be linked together, the centre of collector pipe is equipped with air water conservancy diversion mouth.
In a preferred embodiment, there are two membrane shells in the laminar flow type hollow fiber filtration membrane, the membrane shells are respectively located at the upper end and the lower end of the laminar flow type hollow fiber filtration membrane, and the two ends of the membrane filament are respectively encapsulated between the membrane shell at the upper end and the membrane shell at the lower end by the encapsulation glue; the laminar flow type hollow fiber filtering membrane is fixed in the membrane module support, the two membrane shells are respectively positioned above and below the membrane module support, an aerator pipe is arranged right below each laminar flow type hollow fiber filtering membrane, and the position of each aerator pipe is right opposite to an air flow guide opening at the lower end of the laminar flow type hollow fiber filtering membrane in the vertical direction.
Every laminar flow formula hollow fiber filter membrane all is equipped with an aeration pipe under, the position of aeration pipe is just facing laminar flow formula hollow fiber filter membrane lower extreme air water conservancy diversion mouth in the vertical direction, the advantage of design like this is, make aeration pipe spun gas can follow laminar flow formula hollow fiber filter membrane's air water conservancy diversion mouth entering laminar flow formula hollow fiber filter membrane inside in the course of the work, make the shake of membrane silk more even, the pollutant on membrane silk surface obtains more effective washing away.
In general, the membrane module is provided with a total water outlet for producing water from the membrane and a total air inlet for supplying air, and as a variation of the embodiment of the membrane module, the total water outlet and the total air inlet may be separately provided and included in the membrane module.
In a preferred embodiment, the main air inlet is provided with a backwash water inlet.
The purpose of backwash water inlet is, can throw into the aeration pipe through backwash water inlet with the product water of membrane group ware regularly, wash the aeration pipe, avoid the aeration pipe to block up, promote the stability of system operation.
In a preferred embodiment, the laminar flow type hollow fiber filtration membrane is provided with a membrane shell, the membrane shell is positioned at one end of the laminar flow type hollow fiber filtration membrane, the membrane filaments are integrally bent into a U shape, and both ends of the membrane filaments are sealed in the same membrane shell through the packaging glue; the laminar flow type hollow fiber filtering membrane is fixed in a membrane module support, the membrane shell is positioned above the membrane module support, the U-shaped membrane filaments face downwards, an aeration pipe penetrates through the U-shaped membrane filaments in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane, and the aeration pipes are positioned in the membrane close to the U-shaped position and are arranged in parallel with the membrane shell.
The advantage of design like this is, laminar flow formula hollow fiber filters the lower extreme of diaphragm and does not have the membrane shell, has consequently avoided the diaphragm to pile up the condition of mud easily in operation in-process lower extreme membrane shell department, has reduced the pollution of membrane silk and membrane shell connection position root, has promoted the availability factor of membrane silk, and also the utilization ratio of the same many membrane silks is bigger. Simultaneously the supporting aeration pipe of each laminar flow type hollow fiber filtration membrane is located the centre of the membrane silk of diaphragm, and the aeration pipe has compromise two effects this moment, and one of them is the aeration pipe and has acted as the dead lever of membrane silk, prevents that the membrane silk from swinging at will and entangling at the in-process of aeration together, and its two is the aeration pipe plays the aeration effect, and the aeration effect is strengthened more than traditional structural style's aeration effect. Aeration hole is just to the below, and the air current directly erodees the bottom of U type membrane silk among the aeration process, and the mud that will pile up is broken up and is dropped, then upwards erodees the membrane silk of diaphragm U type both sides because the effect of buoyancy, and the gas washing efficiency is higher more abundant.
In a preferred embodiment, the laminar flow type hollow fiber filtration membrane is provided with a membrane shell, the membrane shell is positioned at one end of the laminar flow type hollow fiber filtration membrane, the membrane filaments are integrally bent into a U shape, and both ends of the membrane filaments are sealed in the same membrane shell through glue water; the laminar flow type hollow fiber filtering membrane is fixed in the membrane module support, the membrane shell is positioned below the membrane module support, the U-shaped membrane filaments face upwards, a round pipe penetrates through the U-shaped membrane filaments in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane, and the aeration pipe is positioned below the laminar flow type hollow fiber filtering membrane.
The advantage of design like this is, laminar flow formula hollow fiber filters the upper end of diaphragm and does not have the membrane shell, has consequently avoided the diaphragm to locate the condition of the easy pile density of mud lighter than water at operation in-process upper end membrane shell, has reduced the pollution of membrane silk and membrane shell connection position root, has promoted the availability factor of membrane silk, and also the membrane silk utilization ratio that is the same is many is bigger. Simultaneously each laminar flow formula hollow fiber filter membrane shell centre is provided with air water conservancy diversion mouth, the aeration pipe is located laminar flow formula hollow fiber filter membrane's below, gaseous upwards emits the membrane silk that directly erodees laminar flow formula hollow fiber filter membrane from air water conservancy diversion mouth during the aeration, because laminar flow formula hollow fiber filter membrane top does not have the membrane shell, the degree of freedom is bigger when the membrane silk is along with gaseous swing, the swing is more violent, make the adnexed pollutant on the membrane silk more easily and wash by gas, thereby promote the stability of whole membrane group ware operation.
Preferably, the inner layer of the aeration pipe is a hard pipe, the surface of the aeration pipe is made of a flexible material, and aeration holes of 2 mm-5 mm are uniformly distributed on the aeration pipe.
Preferably, the hard pipe is one or more selected from stainless steel pipe, PVC pipe, PET pipe and ABS pipe.
Preferably, the flexible material is polyurethane resin, epoxy resin, silica gel and other materials.
Preferably, the aeration pipe is a rubber hose, and the surface of the rubber hose is distributed with 0.2 um-2 um microporous aeration holes.
Preferably, the rubber hose is one or more selected from PTFE hose, nitrile rubber hose and ethylene propylene diene monomer hose.
Preferably, the laminar flow type hollow fiber filtering membrane comprises a socket piece matched with the water producing port of the membrane shell,
the outer part of the socket piece is a socket pipe matched with the inner diameter of the water producing port; a seal ring mounting groove for mounting a seal ring is formed in the socket pipe; the inner diameter of the socket piece is provided with a thread opening.
Preferably, the laminar flow type hollow fiber filtering membrane comprises a sealing hanger matched with a water producing port of the membrane shell;
one end of the sealing pendant is a sealing tube matched with the inner diameter of the water producing port, the other end of the sealing tube is provided with an installation block, and the installation block is provided with a bolt hole for fixing the sealing pendant.
Preferably, the connection mode of the laminar flow type hollow fiber filtering membrane and the membrane module support is that a socket joint part matched with the inner diameter of a water producing port of the laminar flow type hollow fiber filtering membrane is arranged on the membrane module support, a sealing ring is arranged on the socket joint part, the water producing port at one end of the laminar flow type hollow fiber filtering membrane is connected with the membrane module support through the socket joint part and is sealed by the sealing ring, and the other end of the laminar flow type hollow fiber filtering membrane is blocked by a sealing hanging part and is fixed on the membrane module support.
Preferably, the laminar flow type hollow fiber filtering membranes are provided with water producing ports, the water producing ports of each laminar flow type hollow fiber filtering membrane are connected with a square pipe in the membrane module support and are collected to a total water producing port through the square pipe on the membrane support; each laminar flow type hollow fiber filter membrane below all corresponds and is equipped with an aeration pipe, and each aeration pipe is connected with the side's pipe in the membrane support, gathers total air inlet.
Preferably, the top end of the laminar flow type hollow fiber filtration membrane module is provided with air retention grooves which are uniformly arranged in the horizontal direction.
A membrane part:
preferably, the laminar flow type hollow fiber filter membrane installed in the laminar flow type hollow fiber filter membrane module according to the present invention is selected from one or more of the following laminar flow type hollow fiber filter membranes:
the laminar flow type hollow fiber filtering membrane comprises a membrane shell, packaging glue and membrane filaments, wherein the membrane shell comprises a membrane filament packaging groove, a water collecting pipe and a water production port, the membrane filaments are packaged in the membrane filament packaging groove through the packaging glue, the membrane filament packaging groove is bonded with the water collecting pipe through the membrane shell bonding glue, the water collecting pipe is communicated with the water production port, and an air diversion port is arranged in the middle of the water collecting pipe.
Preferably, the membrane shell comprises two rows of membrane yarn packaging grooves which are arranged in parallel, the air diversion port is positioned in the middle of the two rows of membrane yarn packaging grooves to separate the two rows of membrane yarn packaging grooves, and the membrane yarns are sealed in the two rows of membrane yarn packaging grooves through packaging glue.
In a preferred embodiment, the membrane shell comprises 2-5 rows of membrane thread packaging grooves arranged in parallel.
Preferably, the laminar flow type hollow fiber filtering membrane is provided with two membrane shells, the membrane shells are respectively positioned at the upper end and the lower end of the laminar flow type hollow fiber filtering membrane, and two ends of the membrane wire are respectively packaged between the membrane shell at the upper end and the membrane shell at the lower end through the packaging glue.
Preferably, the laminar flow type hollow fiber filtration membrane is provided with a membrane shell, the membrane shell is positioned at one end of the laminar flow type hollow fiber filtration membrane, the membrane wire is integrally bent into a U shape, and two ends of the membrane wire are sealed in the same membrane shell through the packaging glue.
In a preferred embodiment, an aeration pipe parallel to the membrane shell is arranged inside the membrane sheet near the end where the U-shaped membrane wires are bent. Preferably, the aeration holes of the aeration pipe are opposite to the bottom ends of the U-shaped membrane wires.
Preferably, the membrane silk seal dress through two-layer encapsulation glue water in membrane silk encapsulation inslot, wherein the bottom glue is the ebonite that is used for fixing membrane silk and membrane shell together, and top layer glue is the flexible glue that is used for protecting the root of membrane silk.
Preferably, the packaging glue is polyurethane glue or epoxy glue.
Preferably, the membrane shell is made of ABS material, PET material or PVC material.
Preferably, the film shell bonding glue is ABS glue, PET glue or PVC glue.
In a preferred embodiment, the encapsulation of the laminar flow type hollow fiber filtration membrane is divided into four steps, wherein in the first step, membrane filaments are encapsulated in a membrane filament encapsulation groove by hard glue, membrane end holes are cut after the glue is solidified, in the second step, the membrane filament encapsulation groove is adhered in a water collecting pipe by membrane shell bonding glue, in the third step, the membrane filament encapsulation groove, the membrane filaments and the water collecting pipe are further fixed by pouring the hard glue in the water collecting pipe, and in the fourth step, soft glue is filled on the surface of the hard glue.
Preferably, the membrane filaments are sealed in the membrane filament packaging groove through packaging glue, and the number of the membrane filaments arranged in the membrane filament packaging groove in parallel in the transverse direction is 2-5 rows; preferably, the number of the rows of the membrane filaments arranged in parallel in the transverse direction in the membrane filament packaging groove is 3-4.
Preferably, the membrane filaments are high-strength membrane filaments, the bursting water pressure of the membrane filaments is greater than 0.8MPa, the tensile strength of the membrane filaments is greater than 150N, and the bursting water pressure of the membrane filaments is greater than 1.5MPa and the tensile strength of the membrane filaments is greater than 400N. Further preferably, the bursting water pressure of the membrane filaments is more than 2 MPa.
Preferably, the membrane wire consists of a reinforcing layer and a filtering layer, the reinforcing layer is a latticed hollow fiber tube as a whole, fine capillary fibers are distributed in the hollow fiber tube, and the filtering layer completely wraps the reinforcing layer and is tightly combined with the capillary fibers in the hollow fiber tube.
The membrane thread generates larger bursting water pressure through the change of the structure.
Preferably, the material of the filter layer is a PVDF material, and the material of the hollow fiber tube is one or more of a PVDF material and a PET material.
In a preferred embodiment, the water collecting pipe is provided with a transparent viewing port.
And a movable rotating wheel used for cleaning the transparent viewing port is arranged below the transparent viewing port.
Preferably, the blades of the rotating wheel are made of flexible materials, and the flexible materials are selected from one or more of silica gel, styrene butadiene rubber and ethylene propylene diene monomer.
In a preferred embodiment, the movable wheel is centrally mounted on a shaft fixed below the transparent viewing port.
The effect that sets up movable runner is, thereby laminar flow formula hollow fiber filtration membrane is when producing water, and the membrane shell is inside to breed the bacterium and block transparent viewing aperture to make it lose the effect of observing, set up behind the movable runner, when laminar flow formula hollow fiber filtration membrane produced water, rivers drive movable runner rotates, and the blade of activity runner is cleaned on transparent viewing aperture, guarantees the cleanness of transparent viewing aperture.
Preferably, the transparent observation port is made of one or more of tempered glass, organic glass and polycarbonate.
Whether the inspection diaphragm that sets up the viewing aperture can be more convenient whether install completely have reveal, whether the membrane silk of diaphragm has the damage or reveals, is showing the degree of difficulty that has reduced later stage problem investigation.
In a preferred embodiment, the laminar flow type hollow fiber filtering membrane sheet comprises a socket piece matched with a water producing port of a membrane shell,
the outer part of the socket piece is a socket pipe matched with the inner diameter of the water producing port; a seal ring mounting groove for mounting a seal ring is formed in the socket pipe; the inner diameter of the socket piece is provided with a thread opening.
Preferably, the socket piece is connected with a metal water production pipe on a metal film frame for fixing the membrane through a threaded screw hole welded on the water production pipe and sealed through a raw rubber belt or glue.
In a preferred embodiment, the laminar flow type hollow fiber filtration membrane comprises a sealing hanger matched with a water producing port of the membrane shell;
one end of the sealing pendant is a sealing tube matched with the inner diameter of the water producing port, the other end of the sealing tube is provided with an installation block, and the installation block is provided with a bolt hole for fixing the sealing pendant.
And the sealing hanger is provided with a bolt hole for positioning and fixing the membrane shell and the metal membrane frame through the bolt.
Compared with the prior art, the laminar flow type hollow fiber filter membrane has the following effects:
1. the arrangement of the membrane filaments in the same membrane is divided into two or more rows, and the middle of each row of membrane filaments is divided by an air diversion opening on the membrane shell. In the use, the air for scrubbing the membrane filaments enters the membrane from the air guide opening, and gas and liquid laminar flows are formed in the laminar flow type hollow fiber filtering membrane, so that the membrane filaments of the membrane are more sufficiently and effectively cleaned. The design not only saves space, but also ensures that air is more easily sealed in the relatively sealed membrane filaments by the membrane filaments for more sufficient aeration and scrubbing.
2. In laminar flow type hollow fiber filtering membrane, the membrane silk of encapsulation in the membrane shell is divided into two rows of parallel arrangement by the air water conservancy diversion mouth that is located the membrane shell centre, longitudinally arrange the radical with the membrane silk like this will be less, the longitudinally arrange the radical of membrane silk in the single membrane silk encapsulation groove of membrane product on the market is general more than 8 or 8, it is common 10-12 even more common, and laminar flow type hollow fiber filtering membrane passes through after air water conservancy diversion mouth divides membrane silk encapsulation groove into two rows or the multirow that is parallel, membrane silk radical in single row membrane silk encapsulation groove is 5 in the longitudinal arrangement direction, 4, 3, 2 or 1.
For a clearer explanation of this patent document, the definition of both the transverse and longitudinal directions is that the membrane shell is placed on a horizontal plane, with the longer direction being the longitudinal direction and the shorter direction being the transverse direction.
3. The integral strength is higher, the structural strength of the membrane shell is higher than that of the membrane shell in the prior art, the membrane shell of the laminar flow type hollow fiber filtering membrane is sealed by adopting a four-sealing glue process, the bonding strength of membrane filaments and the membrane shell is higher, the bursting strength of third membrane filaments is higher, the bursting strength of the membrane filaments in the prior art is 0.4-0.8 MPa, the bursting strength of the membrane filaments reaches 2.0MPa at most, the integral strength and the stability of the membrane are further improved after the membrane filaments are strengthened in multiple aspects, and meanwhile, the backwashing can be carried out by using ultrahigh backwashing pressure.
Membrane shell part:
the membrane shell in the preferred laminar flow type hollow fiber filtration membrane sheet of the invention is selected from one or more of the following laminar flow type hollow fiber filtration membrane shells.
A laminar flow type hollow fiber filtering membrane shell comprises a water producing port, a water collecting pipe and a membrane thread packaging groove,
the membrane silk encapsulation groove be located the collector pipe inside, produce the water mouth be located on the collector pipe, the collector pipe in the middle of be equipped with air water conservancy diversion mouth.
Preferably, the water collecting pipe comprises a left side pipe and a right side pipe,
the left side pipe and the right side pipe are connected through a reinforcing rib; and the air flow guide openings are symmetrically distributed.
The reinforcing rib between left side pipe and the right side pipe can guarantee the bulk strength of membrane shell, makes the membrane shell not produce deformation for a long time when the operation in complicated sewage environment.
Preferably, the water producing port is arranged at two ends of the water collecting pipe, and the inside of the water producing port is communicated with the inside of the water collecting pipe.
The width of the air diversion opening is 5-20mm, and preferably, the width of the air diversion opening is 12-16 mm.
The width of air water conservancy diversion mouth is very big to the influence of this real result of use of membrane shell, and air water conservancy diversion mouth width undersize, the aeration effect is poor, and air water conservancy diversion mouth department gathers mud easily simultaneously and leads to the diaphragm operation unstable, and air water conservancy diversion mouth width is too big, can influence the gas of aeration equally to the washing away of membrane silk, can reduce the intensity of membrane shell simultaneously. Multiple tests prove that the air guide opening with the diameter of 12-16mm can obtain better effect in the invention.
Preferably, the water collecting pipe comprises a plurality of side pipes, an air diversion opening is arranged between the side pipes, and the air diversion opening and the side pipes are arranged in parallel.
In another preferred embodiment, the water collecting pipe has 3 to 10 side pipes arranged in parallel, and the side pipes are arranged in parallel with the air diversion opening.
The side pipes are connected through the same water production pipe. The communicated water producing port and the water collecting pipe form a water producing flow passage of the hollow fiber membrane.
In a preferred embodiment, the water collecting pipe is provided with a transparent viewing port.
And a movable rotating wheel used for cleaning the transparent viewing port is arranged below the transparent viewing port.
Preferably, the blades of the rotating wheel are made of flexible materials, and the flexible materials are selected from one or more of silica gel, styrene butadiene rubber and ethylene propylene diene monomer.
In a preferred embodiment, the movable wheel is centrally mounted on a shaft fixed below the transparent viewing port.
The effect that sets up movable runner is, thereby laminar flow formula hollow fiber filtration membrane is when producing water, and the membrane shell is inside to breed the bacterium and block transparent viewing aperture to make it lose the effect of observing, set up behind the movable runner, when laminar flow formula hollow fiber filtration membrane produced water, rivers drive movable runner rotates, and the blade of activity runner is cleaned on transparent viewing aperture, guarantees the cleanness of transparent viewing aperture.
Preferably, the transparent observation port is made of one or more of tempered glass, organic glass and polycarbonate.
Whether the transparent viewing aperture is arranged can be more convenient to check whether the diaphragm is completely installed or not, whether the membrane wire of the diaphragm is damaged or leaked or not is judged, and the difficulty of later-stage problem investigation is obviously reduced.
In a preferred embodiment, the water producing port is positioned at one end of the water collecting pipe for producing water, and the other end of the water collecting pipe is in a closed state.
Preferably, the one end that is in the encapsulated situation in the membrane shell adopts and seals with the working of plastics that the membrane shell material is the same, is equipped with the fixed mouth that is used for fixed diaphragm simultaneously on this working of plastics.
Preferably, the membrane yarn packaging groove and the water collecting pipe are of a split structure, membrane yarns are packaged in the membrane yarn packaging groove, and then the membrane yarn packaging groove and the water collecting pipe are bonded into a whole through glue.
Preferably, a transverse reinforcing rib is arranged in the film wire packaging groove.
Preferably, the inner wall of the membrane silk packaging groove is provided with vertical stripes for enhancing friction force.
Preferably, the membrane shell is made of engineering plastics or fiber reinforced engineering plastics.
Further preferably, the engineering plastic is ABS, HIPS, PA or PET.
In a preferred embodiment, the membrane shell of the laminar flow type hollow fiber filtering membrane comprises a socket piece matched with a water producing port of the membrane shell,
the outer part of the socket piece is a socket pipe matched with the inner diameter of the water producing port; a seal ring mounting groove for mounting a seal ring is formed in the socket pipe; the inner diameter of the socket piece is provided with a thread opening.
The socket piece is connected with a metal water production pipe on a metal film frame for fixing the diaphragm through a threaded screw port welded on the water production pipe and sealed through a raw adhesive tape or glue.
In a preferred embodiment, the laminar flow type hollow fiber filtering membrane shell comprises a sealing hanger matched with a water producing port of the laminar flow type hollow fiber filtering membrane shell;
one end of the sealing pendant is a sealing pipe matched with the inner diameter of the water producing port, the other end of the sealing pipe is an installation block, and a bolt hole used for fixing the sealing pendant is formed in the installation block.
The sealing hanger is adhered with a water producing port of the laminar flow type hollow fiber filtering membrane shell through glue and blocks the water producing port, and the sealing hanger is provided with a bolt hole for positioning and fixing the membrane shell and the metal membrane frame through a bolt.
The invention has the beneficial effects that:
1. the laminar flow type hollow fiber membrane shell is completely different from the membrane shell commonly found on the market. Laminar flow formula hollow fiber membrane shell is equipped with air water conservancy diversion mouth in the middle of the collector pipe, and the effect of air water conservancy diversion mouth lets the air that membrane module bottom aeration in-process produced, through the inside of the orderly entering membrane module of air water conservancy diversion mouth on the membrane shell, makes the bubble distribution that the air produced more even to it is more even effective to the washing of membrane silk.
2. The design of laminar flow formula hollow fiber membrane shell can make the aeration efficiency of membrane system higher, the in-process that the air ascended from the membrane module is inside, because the width of water conservancy diversion mouth is smaller, the air is enclosed in the inside relatively inclosed space of a slice of diaphragm by the membrane silk of water conservancy diversion mouth left and right sides, the air is at the in-process bubble that rises, wash the membrane silk from inside to outside, the invalid of having reduced the air rises, the impact force of the in-process that rises of air has been utilized to the at utmost, wash membrane silk surface.
3. The integral strength of the laminar flow type hollow fiber membrane shell is greatly improved, the integral strength is improved by more than 3 times compared with the strength of the existing membrane shell, and the membrane shell is often deformed or even a membrane is scrapped because a worker frequently tramples the membrane shell in the maintenance and construction process of the membrane module device.
4. Laminar flow type hollow fiber membrane shell contains socket joint spare and the sealed pendant that matches with it, and when socket joint spare and sealed pendant used together, the installation and the fixed more convenient of membrane shell. Compared with the traditional membrane shell adopting loose joint connection, adopting PVC plastic pipe connection or adopting the sealing ring arranged on the membrane shell body to be connected with the inner wall of the metal pipe of the membrane frame in a sealing way, the invention adopts the connection and sealing of the socket piece and the metal membrane frame through the threaded screw port, and communicates with the connection and installation mode that the sealing ring on the socket piece is sealed with the inner wall of the membrane shell water producing port, thereby having the advantages of good sealing performance, less fault points which can generate water leakage, higher reliability, more convenient installation, lower material cost and installation cost, and more convenient disassembly and maintenance.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a schematic structural view of a membrane shell of a laminar flow type hollow fiber filtration membrane of the present invention;
FIG. 2 is an exploded view of the structure of a membrane shell of a laminar flow type hollow fiber filtration membrane according to the present invention;
FIG. 3 is a front view of a laminar flow type hollow fiber filtration membrane of example 3 of the present invention;
FIG. 4 is a left side view of a laminar flow type hollow fiber filtration membrane of example 3 of the present invention;
FIG. 5 is a plan view of a laminar flow type hollow fiber filtration membrane in example 3 of the present invention;
FIG. 6 is a schematic view showing the structure of a laminar flow type hollow fiber filtration membrane in example 3 of the present invention;
FIG. 7 is a front view of a laminar flow type hollow fiber filtration membrane of example 4 of the present invention;
FIG. 8 is a left side view of a laminar flow type hollow fiber filtration membrane of example 4 of the present invention;
FIG. 9 is a plan view of a laminar flow type hollow fiber filtration membrane of example 4 of the present invention;
FIG. 10 is a schematic view showing the structure of a laminar flow type hollow fiber filtration membrane in example 4 of the present invention;
FIG. 11 is a schematic structural view of a laminar flow type hollow fiber filtration membrane module according to example 5 of the present invention;
FIG. 12 is a schematic view showing the structure of a membrane module for a laminar flow type hollow fiber filtration membrane according to example 6 of the present invention;
FIG. 13 is a schematic view showing the structure of a membrane module for laminar flow type hollow fiber filtration in example 7 of the present invention;
FIG. 14 is a schematic structural view of a laminar flow type hollow fiber filtration membrane module according to example 8 of the present invention;
wherein 1 is a water producing port, 2 is a water collecting pipe, 3 is a film wire packaging groove, 4 is an air diversion port, 5 is a left side pipe, 6 is a right side pipe, 7 is a reinforcing rib, 8 is a transverse reinforcing rib, 9 is a vertical stripe, 10 is a socket joint piece, 11 is a socket joint pipe, 12 is a sealing ring mounting groove, 13 is a thread wire port, 14 is a sealing hanging piece, 15 is a sealing pipe, 16 is a mounting block, 17 is a bolt hole, and 18 is an observation port;
21 is a membrane shell, 22 is packaging glue, and 23 is membrane silk;
31 is a laminar flow type hollow fiber filtering membrane, 32 is a membrane module bracket, 33 is an aeration pipe, 34 is a total water outlet, 35 is a total air inlet, and 36 is a circular pipe.
Detailed Description
The present invention is further illustrated by the following examples, which are included by weight unless otherwise indicated.
Example 1
As shown in the attached drawing 1, the laminar flow type hollow fiber filtering membrane shell comprises a water producing port 1, a water collecting pipe 2 and a membrane thread packaging groove 3, wherein the membrane thread packaging groove 3 is positioned inside the water collecting pipe 2, the water producing port 1 is positioned on the water collecting pipe 2, and an air diversion port 4 is arranged in the middle of the water collecting pipe 2. The water collecting pipe 2 is divided into a left pipe 5 and a right pipe 6 by an air diversion port 4 in the middle, and the left pipe 5 and the right pipe 6 are connected through reinforcing ribs. The reinforcing rib 7 between the left side pipe 5 and the right side pipe 6 can ensure the integral strength of the membrane shell, so that the membrane shell does not deform when operating in a complex sewage environment for a long time.
The water producing ports 1 are positioned at two ends of the water collecting pipe 2, the inside of the water producing ports 1 is communicated with the inside of the water collecting pipe 2, and the communicated water producing ports 1 and the communicated water collecting pipe 2 form a water producing flow channel of the hollow fiber membrane.
The width of the air diversion port 4 is 20mm, the membrane wire packaging groove 3 and the water collecting pipe 2 are split, membrane wires are packaged in the membrane wire packaging groove 3, then the membrane wire packaging groove 3 and the water collecting pipe 2 are bonded into a whole through glue, and a transverse reinforcing rib 8 is arranged in the membrane wire packaging groove 3; the inner wall of the membrane silk packaging groove 3 is provided with vertical stripes 9 for enhancing friction force. The membrane shell is made of ABS material.
Example 2
As shown in fig. 2, the laminar flow type hollow fiber filtration membrane shell comprises a water production port 1, a water collection pipe 2 and a membrane thread packaging groove 3, wherein the membrane thread packaging groove 3 is positioned inside the water collection pipe 2, the water production port 1 is positioned on the water collection pipe 2, and an air diversion port 4 is arranged in the middle of the water collection pipe 2. The water collecting pipe 2 is divided into a left pipe 5 and a right pipe 6 by an air diversion port 4 in the middle, and the left pipe 5 and the right pipe 6 are connected through reinforcing ribs. The reinforcing rib 7 between the left side pipe 5 and the right side pipe 6 can ensure the integral strength of the membrane shell, so that the membrane shell does not deform when operating in a complex sewage environment for a long time.
The water producing ports 1 are positioned at two ends of the water collecting pipe 2, the inside of the water producing ports 1 is communicated with the inside of the water collecting pipe 2, and the communicated water producing ports 1 and the communicated water collecting pipe 2 form a water producing flow channel of the hollow fiber membrane.
The water collecting pipe is provided with a transparent observation port 18, and the transparent observation port 18 is made of polycarbonate.
The width of the air diversion port 4 is 20mm, the membrane wire packaging groove 3 and the water collecting pipe 2 are split, membrane wires are packaged in the membrane wire packaging groove 3, then the membrane wire packaging groove 3 and the water collecting pipe 2 are bonded into a whole through glue, and a transverse reinforcing rib 8 is arranged in the membrane wire packaging groove 3; the inner wall of the membrane silk packaging groove 3 is provided with vertical stripes 9 for enhancing friction force. The membrane shell is made of ABS material.
The laminar flow type hollow fiber filtering membrane shell comprises a socket piece 10 matched with a water producing port 1 of the membrane shell, and a circular socket pipe 11 matched with the inner diameter of the water producing port is arranged outside the socket piece 10; a sealing ring mounting groove 12 for mounting a sealing ring is arranged on the circular socket pipe 11; the inner diameter of the socket 10 is provided with a threaded nipple 13.
The laminar flow type hollow fiber filtering membrane shell comprises a sealing hanger 14 matched with the water producing port 1 of the laminar flow type hollow fiber filtering membrane shell; the outer portion of the sealing hanger 14 is a sealing pipe 15 matched with the inner diameter of the water producing port, the other end of the sealing pipe 15 is an installation block 16, and a bolt hole 17 used for fixing the sealing hanger 14 is formed in the installation block 16.
Example 3
As shown in the attached drawings 1, 3, 4, 5 and 6, the laminar flow type hollow fiber filtering membrane comprises a membrane shell 21, packaging glue 22 and membrane filaments 23, wherein the membrane shell 21 comprises a membrane filament packaging groove 3, a water collecting pipe 2 and a water producing port 1, the membrane filaments 23 are packaged in the membrane filament packaging groove 3 through the packaging glue 22, the membrane filament packaging groove 3 is bonded with the water collecting pipe 2 through the membrane shell bonding glue, the water collecting pipe 2 is communicated with the water producing port 1, and an air diversion port 4 is arranged in the middle of the water collecting pipe 2.
The membrane shell 21 comprises two rows of membrane silk packaging grooves 3 which are arranged in parallel, the air diversion port 5 is positioned between the two rows of membrane silk packaging grooves 3 to separate the two rows of membrane silk packaging grooves 3, and the membrane silk 23 is packaged in the two rows of membrane silk packaging grooves 3 through packaging glue 22.
The membrane is provided with two membrane shells 21, the membrane shells 21 are respectively positioned at the upper end and the lower end of the laminar flow type hollow fiber filtration membrane, and two ends of the membrane thread 23 are respectively packaged between the membrane shell 21 at the upper end and the membrane shell 21 at the lower end through glue.
The membrane silk 23 encapsulate in membrane silk encapsulation inslot 3 through two-layer encapsulation glue 22, wherein the bottom glue is for being used for fixing the polyurethane ebonite together membrane silk and membrane shell, and top layer glue is for the polyurethane soft gel that is used for protecting the membrane silk root.
The membrane shell is made of ABS material, and the membrane shell bonding glue is ABS glue.
The encapsulation of laminar flow formula hollow fiber filtration membrane diaphragm divides into four steps, and first step is sealed the membrane silk 23 in membrane silk encapsulation groove 3 with the ebonite, cuts out membrane end hole after the glue congeals, and second step is in the header pipe 2 with membrane shell bonding glue bonding to membrane silk encapsulation groove 3, and the third step is irritated the ebonite and is further fixed membrane silk encapsulation groove 3, membrane silk 23 and header pipe 2 in header pipe 2, and the fourth step, at ebonite surface filling flexible glue.
The number of the rows of the membrane filaments which are preferably arranged side by side in the transverse direction in the membrane filament packaging groove 3 is 4;
the membrane wire 23 is composed of a reinforcing layer and a filter layer, the whole reinforcing layer is a latticed hollow fiber tube, fine capillary fibers are distributed in the hollow fiber tube, and the filter layer completely wraps the reinforcing layer and is tightly combined with the capillary fibers in the hollow fiber tube, so that the whole bursting water pressure of the membrane wire 23 is 1.6MPa, and the tensile strength is 420N.
In the membrane filament 23, the material of the filter layer is PVDF material, and the material of the hollow fiber tube is PET material. The membrane shell in this example was the membrane shell of the laminar flow hollow fiber filtration membrane described in example 1.
Example 4
As shown in fig. 2, fig. 7, fig. 8, fig. 9 and fig. 10, a laminar flow type hollow fiber filtration membrane comprises a membrane shell 21, an encapsulation glue 22 and membrane filaments 23, wherein the membrane shell 21 comprises a membrane filament encapsulation groove 3, a water collection pipe 2 and a water production port 1, the membrane filaments 23 are encapsulated in the membrane filament encapsulation groove 3 through the encapsulation glue 22, the membrane filament encapsulation groove 3 is bonded with the water collection pipe 2 through the membrane shell bonding glue, the water collection pipe 2 is communicated with the water production port 1, and an air diversion port 4 is arranged in the middle of the water collection pipe 2.
The membrane shell 21 comprises two rows of membrane silk packaging grooves 3 which are arranged in parallel, the air diversion port 5 is positioned between the two rows of membrane silk packaging grooves 3 to separate the two rows of membrane silk packaging grooves 3, and the membrane silk 23 is packaged in the two rows of membrane silk packaging grooves 3 through packaging glue 22.
The membrane is characterized in that a membrane shell 21 is arranged in the membrane, the membrane shell 21 is positioned at one end of the laminar flow type hollow fiber filtering membrane, a membrane wire 23 is integrally bent into a U shape, and two ends of the membrane wire 23 are packaged in the same membrane shell 21 through packaging glue 22.
The membrane silk 23 encapsulate in membrane silk encapsulation groove 3 through two-layer encapsulation glue 22, wherein the bottom glue is for being used for the epoxy glue ebonite that is in the same place membrane silk and membrane shell fixed, and top layer glue is for the polyurethane glue soft glue that is used for protecting the membrane silk root.
The membrane shell is made of ABS material, and the membrane shell bonding glue is ABS glue.
The number of the film threads 23 arranged in the film thread packaging groove 3 in the transverse direction is 3; the membrane yarn 23 is a high-strength membrane yarn, the bursting water pressure of the membrane yarn 23 is 0.8MPa, and the tensile strength is 150N. The membrane filaments 23 are composed of a reinforcing layer and a filter layer, the filter layer is made of PVDF material, and the hollow fiber tube is made of PET material.
The laminar flow type hollow fiber filtering membrane comprises a socket piece matched with a water producing port of a membrane shell, a socket pipe 11 matched with the inner diameter of the water producing port is arranged outside the socket piece, a sealing ring used for sealing the water producing port and the socket piece is arranged on the socket piece 10, a threaded screw port 13 is arranged on the inner diameter of the socket piece 10, and the socket piece 10 is connected with a metal water producing pipe on a metal membrane frame used for fixing the membrane through the threaded screw port welded on the water producing pipe and sealed through adhesive tape or glue.
The membrane shell in this example was the membrane shell of the laminar flow hollow fiber filtration membrane described in example 2.
Example 5
As shown in fig. 11, the laminar flow type hollow fiber filtration membrane module includes a laminar flow type hollow fiber filtration membrane 31, a membrane module holder 32 and an aeration pipe 33, the laminar flow type hollow fiber filtration membrane 31 is fixed in the membrane module holder 32, and the aeration pipe 33 is located at the bottom of the membrane module holder 32.
Laminar flow formula hollow fiber filter membrane 31 include, membrane shell 21, encapsulation glue 22 and membrane silk 23, membrane shell 21 includes membrane silk encapsulation groove 3, collector pipe 2 and produces water mouth 1, membrane silk 23 encapsulates in membrane silk encapsulation groove 3 through encapsulation glue 22, membrane silk encapsulation groove 3 bonds together with collector pipe 2 through membrane shell bonding glue, collector pipe 2 is linked together with producing water mouth 1, the centre of collector pipe 2 is equipped with air water conservancy diversion mouth 4.
The membrane shell 21 comprises two rows of membrane silk packaging grooves 3 which are arranged in parallel, the air diversion port 5 is positioned between the two rows of membrane silk packaging grooves 3 to separate the two rows of membrane silk packaging grooves 3, and the membrane silk 23 is packaged in the two rows of membrane silk packaging grooves 3 through packaging glue 22.
The membrane is provided with two membrane shells 21, the membrane shells 21 are respectively positioned at the upper end and the lower end of the laminar flow type hollow fiber filtration membrane, and two ends of the membrane thread 23 are respectively packaged between the membrane shell 21 at the upper end and the membrane shell 21 at the lower end through glue.
The membrane silk 23 encapsulate in membrane silk encapsulation inslot 3 through two-layer encapsulation glue 22, wherein the bottom glue is for being used for fixing the polyurethane ebonite together membrane silk and membrane shell, and top layer glue is for the polyurethane soft gel that is used for protecting the membrane silk root.
The laminar flow type hollow fiber filtering membrane 31 is fixed in the membrane module support 32, the two membrane shells are respectively positioned above and below the membrane module support 32, an aeration pipe 33 is arranged right below each laminar flow type hollow fiber filtering membrane 31, and the position of the aeration pipe 33 is right opposite to the air diversion port 4 at the lower end of the laminar flow type hollow fiber filtering membrane 31 in the vertical direction.
The inner layer of the aeration pipe is made of PVC hard pipe materials, the surface of the aeration pipe is made of polyurethane resin flexible materials, and aeration holes with the diameter of 5mm are uniformly distributed on the aeration pipe.
The laminar flow type hollow fiber filtering membrane 31 and the membrane module support 32 are connected in a mode that a socket piece 10 matched with the inner diameter of a water producing port of the laminar flow type hollow fiber filtering membrane is arranged on the membrane module support 32, a sealing ring is arranged on the socket piece 10, the water producing port 1 at one end of the laminar flow type hollow fiber filtering membrane 31 is connected with the membrane module support through the socket piece 10 and is sealed by the sealing ring, and the other end of the laminar flow type hollow fiber filtering membrane 31 is blocked by a sealing hanging piece 14 and is fixed on the membrane module support 32.
The laminar flow type hollow fiber filtering membrane is provided with a water producing port 1, the water producing port 1 is connected with a square pipe in the membrane module bracket 32 and is collected to a total water producing port 34 through the square pipe on the membrane bracket; each laminar flow type hollow fiber filter membrane below all corresponds and is equipped with an aeration pipe, and the aeration pipe is connected with the side's pipe in the membrane support, gathers total air inlet 35.
Example 6
As shown in fig. 12, a laminar flow type hollow fiber filtration membrane module includes a laminar flow type hollow fiber filtration membrane 31, a membrane module holder 32 and an aeration pipe 33, wherein the laminar flow type hollow fiber filtration membrane 31 is fixed in the membrane module holder 32, and the aeration pipe 33 is located at the bottom of the membrane module holder 32. Laminar flow formula hollow fiber filter membrane 31 include, membrane shell 21, encapsulation glue 22 and membrane silk 23, membrane shell 21 includes membrane silk encapsulation groove 3, collector pipe 2 and produces water mouth 1, membrane silk 23 encapsulates in membrane silk encapsulation groove 3 through encapsulation glue 22, membrane silk encapsulation groove 3 bonds together with collector pipe 2 through membrane shell bonding glue, collector pipe 2 is linked together with producing water mouth 1, the centre of collector pipe 2 is equipped with air water conservancy diversion mouth 4.
The laminar flow type hollow fiber filtration membrane is the laminar flow type hollow fiber filtration membrane described in example 4. The laminar flow type hollow fiber filtering membrane 31 is provided with a membrane shell 21, the membrane shell 21 is positioned at one end of the laminar flow type hollow fiber filtering membrane 31, the membrane wire 23 is integrally bent into a U shape, and two ends of the membrane wire 23 are both packaged in the same membrane shell 21 through packaging glue 22; the laminar flow type hollow fiber filtering membrane is fixed in a membrane module support 32, the membrane shell 21 is positioned above the membrane module support, the U-shaped membrane filaments 23 face downwards, an aeration pipe 33 is arranged in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane and penetrates through the U-shaped membrane filaments 23, and the aeration pipe 33 is positioned in the position, close to the U shape, in the membrane and is arranged in parallel with the membrane shell 21.
The laminar flow type hollow fiber filtering membrane 31 and the membrane module support 32 are connected in a mode that a socket piece 10 matched with the inner diameter of a water producing port of the laminar flow type hollow fiber filtering membrane is arranged on the membrane module support 32, a sealing ring is arranged on the socket piece 10, the water producing port 1 at one end of the laminar flow type hollow fiber filtering membrane 31 is connected with the membrane module support through the socket piece 10 and is sealed by the sealing ring, and the other end of the laminar flow type hollow fiber filtering membrane 31 is blocked by a sealing hanging piece 14 and is fixed on the membrane module support 32.
The laminar flow type hollow fiber filtering membrane is provided with a water producing port 1, the water producing port 1 is connected with a square pipe in the membrane module bracket 32 and is collected to a total water producing port 34 through the square pipe on the membrane bracket; each laminar flow type hollow fiber filter membrane below all corresponds and is equipped with an aeration pipe, and the aeration pipe is connected with the side's pipe in the membrane support, gathers total air inlet 35.
Example 7
As shown in fig. 13, a laminar flow type hollow fiber filtration membrane module includes a laminar flow type hollow fiber filtration membrane 31, a membrane module holder 32 and an aeration pipe 33, wherein the laminar flow type hollow fiber filtration membrane 31 is fixed in the membrane module holder 32, and the aeration pipe 33 is located at the bottom of the membrane module holder 32. Laminar flow formula hollow fiber filter membrane 31 include, membrane shell 21, encapsulation glue 22 and membrane silk 23, membrane shell 21 includes membrane silk encapsulation groove 3, collector pipe 2 and produces water mouth 1, membrane silk 23 encapsulates in membrane silk encapsulation groove 3 through encapsulation glue 22, membrane silk encapsulation groove 3 bonds together with collector pipe 2 through membrane shell bonding glue, collector pipe 2 is linked together with producing water mouth 1, the centre of collector pipe 2 is equipped with air water conservancy diversion mouth 4.
The laminar flow type hollow fiber filtration membrane is the laminar flow type hollow fiber filtration membrane described in example 4. The laminar flow type hollow fiber filtering membrane 31 is provided with a membrane shell 21, the membrane shell 21 is positioned at one end of the laminar flow type hollow fiber filtering membrane 31, the membrane wire 23 is integrally bent into a U shape, and two ends of the membrane wire 23 are both packaged in the same membrane shell 21 through packaging glue 22; the laminar flow type hollow fiber filtering membrane is fixed in a membrane group device support 32, the membrane shell 21 is positioned below the membrane group device support 32, the U-shaped membrane filaments 23 face upwards, a round tube 36 is arranged in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane and penetrates through the U-shaped membrane filaments 23, and the aeration tube 33 is positioned below the laminar flow type hollow fiber filtering membrane.
Because the laminar flow type hollow fiber filter membrane 31 is arranged in the membrane module bracket 32 in an inverted mode, the circular tube 36 mainly has the function of fixing membrane wires, and the membrane wires are not entangled in the operation process.
The laminar flow type hollow fiber filtering membrane 31 and the membrane module support 32 are connected in a mode that a socket piece 10 matched with the inner diameter of a water producing port of the laminar flow type hollow fiber filtering membrane is arranged on the membrane module support 32, a sealing ring is arranged on the socket piece 10, the water producing port 1 at one end of the laminar flow type hollow fiber filtering membrane 31 is connected with the membrane module support through the socket piece 10 and is sealed by the sealing ring, and the other end of the laminar flow type hollow fiber filtering membrane 31 is blocked by a sealing hanging piece 14 and is fixed on the membrane module support 32.
The laminar flow type hollow fiber filtering membrane is provided with a water producing port 1, the water producing port 1 is connected with a square pipe in the membrane module bracket 32 and is collected to a total water producing port 34 through the square pipe on the membrane bracket; each laminar flow type hollow fiber filter membrane below all corresponds and is equipped with an aeration pipe, and the aeration pipe is connected with the side's pipe in the membrane support, gathers total air inlet 35.
Example 8
As shown in fig. 14, a laminar flow type hollow fiber filtration membrane module includes a laminar flow type hollow fiber filtration membrane 31, a membrane module holder 32 and an aeration pipe 33, the laminar flow type hollow fiber filtration membrane 31 is fixed in the membrane module holder 32, and the aeration pipe 33 is located at the bottom of the membrane module holder 32. Laminar flow formula hollow fiber filter membrane 31 include, membrane shell 21, encapsulation glue 22 and membrane silk 23, membrane shell 21 includes membrane silk encapsulation groove 3, collector pipe 2 and produces water mouth 1, membrane silk 23 encapsulates in membrane silk encapsulation groove 3 through encapsulation glue 22, membrane silk encapsulation groove 3 bonds together with collector pipe 2 through membrane shell bonding glue, collector pipe 2 is linked together with producing water mouth 1, the centre of collector pipe 2 is equipped with air water conservancy diversion mouth 4.
The laminar flow type hollow fiber filtration membrane is the laminar flow type hollow fiber filtration membrane described in example 4. The laminar flow type hollow fiber filtering membrane 31 is provided with a membrane shell 21, the membrane shell 21 is positioned at one end of the laminar flow type hollow fiber filtering membrane 31, the membrane wire 23 is integrally bent into a U shape, and two ends of the membrane wire 23 are both packaged in the same membrane shell 21 through packaging glue 22; the laminar flow type hollow fiber filtering membrane is fixed in a membrane module support 32, the membrane shell 21 is positioned above the membrane module support, the U-shaped membrane filaments 23 face downwards, a round pipe penetrates through the U-shaped membrane filaments 23 in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane, and the aeration pipe 33 is positioned below the membrane and arranged in parallel with the membrane shell 21.
The laminar flow type hollow fiber filtering membrane 31 and the membrane module support 32 are connected in a mode that a socket piece 10 matched with the inner diameter of a water producing port of the laminar flow type hollow fiber filtering membrane is arranged on the membrane module support 32, a sealing ring is arranged on the socket piece 10, the water producing port 1 at one end of the laminar flow type hollow fiber filtering membrane 31 is connected with the membrane module support through the socket piece 10 and is sealed by the sealing ring, and the other end of the laminar flow type hollow fiber filtering membrane 31 is blocked by a sealing hanging piece 14 and is fixed on the membrane module support 32.
The laminar flow type hollow fiber filtering membrane is provided with a water producing port 1, the water producing port 1 is connected with a square pipe in the membrane module bracket 32 and is collected to a total water producing port 34 through the square pipe on the membrane bracket; each laminar flow type hollow fiber filter membrane below all corresponds and is equipped with an aeration pipe, and the aeration pipe is connected with the side's pipe in the membrane support, gathers total air inlet 35.
By packaging the membrane shell in the embodiment 1 and the general membrane shell on the market into the membrane and then operating under the same condition, the operating flux of the membrane is improved by 4.5 times, and the membrane can adapt to higher sludge load.
Through laboratory tests, the laminar flow type hollow fiber filtering membrane in the embodiment 3 of the invention has the integral anti-explosion pressure of more than 1.6MPa, and when the design flux of the membrane is 40 liters per square meter per hour, the membrane is flushed intermittently for more than 10000 times by adopting the backwashing water volume of 200 liters per square meter per hour without being damaged.
Simultaneously, through our sampling and making various membranes for testing, when the water collecting pipe is provided with 3 side pipes which are arranged in parallel with the air diversion port and are arranged in parallel, the anti-pollution capacity of the membrane made of the laminar flow type hollow fiber filtering membrane shell is strongest, the running flux of the membrane is 8.6 times that of the common membrane, and the optimal structural strength is achieved.
Compared with the existing single-layer membrane, the stable operation flux of the laminar flow type hollow fiber filter membrane module in the embodiment of the invention is 3.7 times higher.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes and modifications made based on the principles of the invention as described in the claims should be included in the scope of the invention.
Claims (9)
1. The laminar flow type hollow fiber filtration membrane group device is characterized by comprising a laminar flow type hollow fiber filtration membrane, a membrane group device support and an aeration pipe, wherein the laminar flow type hollow fiber filtration membrane is fixed in the membrane group device support, the aeration pipe is positioned at the bottom of the membrane group device support, the laminar flow type hollow fiber filtration membrane comprises a membrane shell, glue and membrane filaments, and the membrane shell is made of engineering plastics or fiber reinforced engineering plastics;
the membrane shell comprises a membrane thread packaging groove, a water collecting pipe and a water production port, the membrane thread is packaged in the membrane thread packaging groove through packaging glue water, the membrane thread packaging groove is bonded with the water collecting pipe through membrane shell bonding glue, the water collecting pipe is communicated with the water production port, and an air diversion port is arranged in the middle of the water collecting pipe;
the membrane silk encapsulation groove (3) is positioned inside the water collecting pipe (2), the water producing port (1) is positioned on the water collecting pipe (2), an air diversion port (4) is arranged in the middle of the water collecting pipe (2), and the water collecting pipe (2) is divided into a left side pipe (5) and a right side pipe (6) by the air diversion port (4) in the middle; the left side pipe (5) and the right side pipe (6) are connected through a reinforcing rib, and the number of the rows of the membrane filaments which are arranged side by side in the transverse direction in the membrane filament packaging groove is 3-4;
the packaging of the laminar flow type hollow fiber filtering membrane is divided into four steps, wherein in the first step, membrane wires are packaged in a membrane wire packaging groove by hard glue, membrane end holes are cut after the glue is solidified, in the second step, the membrane wire packaging groove is bonded in a water collecting pipe by membrane shell bonding glue, in the third step, the membrane wire packaging groove, the membrane wires and the water collecting pipe are further fixed by pouring the hard glue into the water collecting pipe, and in the fourth step, soft glue is filled on the surface of the hard glue.
2. The laminar flow type hollow fiber filtration membrane module according to claim 1, wherein there are two membrane shells in the laminar flow type hollow fiber filtration membrane, the membrane shells are respectively located at the upper end and the lower end of the laminar flow type hollow fiber filtration membrane, and both ends of the membrane filaments are respectively encapsulated between the upper membrane shell and the lower membrane shell by the encapsulation glue; the laminar flow type hollow fiber filtering membrane is fixed in the membrane module support, the two membrane shells are respectively positioned above and below the membrane module support, an aerator pipe is arranged right below each laminar flow type hollow fiber filtering membrane, and the position of each aerator pipe is right opposite to an air flow guide opening at the lower end of the laminar flow type hollow fiber filtering membrane in the vertical direction.
3. The laminar flow type hollow fiber filtration membrane module according to claim 1, wherein a membrane shell is provided in the laminar flow type hollow fiber filtration membrane, the membrane shell is provided at one end of the laminar flow type hollow fiber filtration membrane, the membrane filament is integrally bent into a U shape, and both ends of the membrane filament are sealed in the same membrane shell by potting glue; the laminar flow type hollow fiber filtering membrane is fixed in a membrane module support, the membrane shell is positioned above the membrane module support, the U-shaped membrane filaments face downwards, an aeration pipe penetrates through the U-shaped membrane filaments in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane, and the aeration pipes are positioned in the membrane close to the U-shaped position and are arranged in parallel with the membrane shell.
4. The laminar flow type hollow fiber filtration membrane module according to claim 1, wherein a membrane shell is provided in the laminar flow type hollow fiber filtration membrane, the membrane shell is provided at one end of the laminar flow type hollow fiber filtration membrane, the membrane filaments are integrally bent into a U shape, and both ends of the membrane filaments are sealed in the same membrane shell by glue water; the laminar flow type hollow fiber filtering membrane is fixed in the membrane module support, the membrane shell is positioned below the membrane module support, the U-shaped membrane filaments face upwards, a round pipe penetrates through the U-shaped membrane filaments in the middle of each U-shaped membrane filament in each laminar flow type hollow fiber filtering membrane, and the aeration pipe is positioned below the laminar flow type hollow fiber filtering membrane.
5. The laminar flow type hollow fiber filtration membrane module according to claim 1, wherein the aeration pipe is a hard pipe material at the inner layer and made of a flexible material at the surface, and aeration holes of 2mm to 5mm are uniformly distributed on the aeration pipe; or the aeration pipe is a rubber hose, and the surface of the rubber hose is distributed with 0.2 um-2 um microporous aeration holes.
6. The laminar flow hollow fiber filtration membrane module according to claim 1, wherein said water collection pipe is provided with a transparent viewing port.
7. The laminar flow hollow fiber filtration membrane module according to claim 1, wherein said laminar flow hollow fiber filtration membrane comprises a socket piece matched with the water production port of the membrane shell, and the outside of said socket piece is a socket pipe matched with the inner diameter of said water production port; a seal ring mounting groove for mounting a seal ring is formed in the socket pipe; the inner diameter of the socket piece is provided with a thread opening.
8. The laminar flow type hollow fiber filtration membrane module according to claim 1, wherein a water producing port is provided on each laminar flow type hollow fiber filtration membrane, and the water producing ports of each laminar flow type hollow fiber filtration membrane are connected with a square pipe in a membrane module support and are collected to a total water producing port through the square pipe on the membrane support; each laminar flow type hollow fiber filter membrane below all corresponds and is equipped with an aeration pipe, and each aeration pipe is connected with the side's pipe in the membrane support, gathers total air inlet.
9. The laminar flow type hollow fiber filtration membrane module according to claim 1, wherein the top end of the laminar flow type hollow fiber filtration membrane module is provided with air retention grooves which are uniformly arranged in the horizontal direction.
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| CN203946944U (en) * | 2014-06-13 | 2014-11-19 | 浙江东大环境工程有限公司 | A kind of membrane bioreactor assembly |
| CN203990321U (en) * | 2014-08-06 | 2014-12-10 | 桐乡市健民过滤材料有限公司 | A kind of high filling density hollow fiber film assembly and film unit |
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Denomination of invention: A laminar flow hollow fiber filter membrane assembly Effective date of registration: 20211217 Granted publication date: 20200522 Pledgee: Hankou Bank Co.,Ltd. Xiantao sub branch Pledgor: HUBEI JUFUMO MEMBRANE TECHNOLOGY Co.,Ltd. Registration number: Y2021420000147 |