A kind of filtration membrane cartridge
Technical field
The present invention relates to the filter in fluid components filtration, isolation andpurification field, in particular to a kind of filtration membrane cartridge.
Background technology
Being separated and filtering specific components (comprising solid particle, colloid, larger molecular organics, soluble inorganic salt, aerosol etc.) from fluid is requisite technique in many fields, comprises bioscience, Chemical Manufacture, test in laboratory, food_beverage industry, smoke gas treatment, electronics industry and water treatment field etc.And membrane separation technique is technology conventional in fluid components filtration, isolation andpurification.
Be cut off with artificial membrane, and utilization artificially form fluid different phase in film both sides, utilizes the difference of the transport motive force between same composition or in same phase between each constituents, the method that related component is separated, is referred to as membrane separation technique.Membrane separation technique comprises electrodialysis, counter-infiltration, nanofiltration, ultrafiltration and micro-filtration etc.In the process of membrane filtration, the colloid in solution and suspended particulate are trapped or are adsorbed on film surface under the effect of the pressure and form cake layer, and cause the decline of membrane flux, this phenomenon is called fouling membrane.In membrane separation process process, fouling membrane should do one's utmost to avoid or control.Although but many scientific researches find that cake layer can make energy consumption increase, it contributes to retaining small-particle, improves isolated by filtration performance.
Dynamic Membrane is that on porous carrier, particle deposition is formed, can be called secondary film again, its essence is exactly that the concentration polarization of carrier module when cross-flow filtration and cake layer particle under the effect of various mechanism define at carrier surface the rete that one deck has micro-filtration or ultrafiltration characteristics.Can serve as now Dynamic Membrane carrier module to have: the porous inorganic materials such as pottery, sintered glass, sintering metal, carbon; Cellulose family, polyamide-based, the polymeric membrane such as aromatic heterocyclic, polysulfones, TPO, silicone rubber kinds, and these polymeric membranes are also referred to as basement membrane sometimes.Compared with the non-dynamic film of same apertures, dynamic permeability of the membrane is also better.These advantages make the research of Dynamic Membrane become positive utilization by the suppression of passiveness.
Compared with traditional membrane technology, Dynamic Membrane remains most of advantage of membrane module, and has following advantage: (1) energy consumption is low-filtration resistance than ultrafiltration and little 1-2 the order of magnitude of micro-filtration, under gravity can from flowing out; (2) flux large-compared with conventional membrane bioreactor, flux improves several times even tens times; (3) easy-simple gas-liquid backwash of regeneration can obtain flux recovery very; (4) prices of raw and semifnished materials are cheap, and the price of such as basement membrane only has the part of milipore filter.
But Dynamic Membrane also has fatal defect.First being the formation of Dynamic Membrane, is need suitable condition and certain process to be formed; Next is the growth along with running time, the thickness of Dynamic Membrane increases gradually, and its structure also changes (density increases), thus both sides differential pressure of membrane is increased, destroy the separating layer of Dynamic Membrane under pressure, cause the collapse of Dynamic Membrane system and lost efficacy.Therefore, need to develop that a kind of structure is simple, formative dynamics film fast, fluid components filters and separative efficiency is high, fouling membrane and the good filtration membrane cartridge of control effects, is problem demanding prompt solution in Dynamic Membrane application.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the present invention is to provide that a kind of structure is simple, formative dynamics film fast, fluid components filters and separative efficiency is high, fouling membrane and the good filtration membrane cartridge of control effects.
In view of this, the invention provides a kind of filtration membrane cartridge, comprise the multiple lamination, upper sealing plate, lower shrouding, joint pin and the hollow flow-guiding post that stack successively;
The middle part of described lamination is provided with port, and the described port of multiple described lamination stacked successively forms water-dilution channel, has the gap flow through for fluid between adjacent described lamination; Described upper sealing plate and described lower shrouding are separately positioned on the two ends of described water-dilution channel, and described upper sealing plate have the first through hole be connected with one end of described water-dilution channel, and described lower shrouding seals the other end of described water-dilution channel; Described joint pin passes perpendicularly through multiple described lamination stacked successively, and the two ends of described joint pin are connected with described lower shrouding with described upper sealing plate respectively; Described hollow flow-guiding post is arranged in described water-dilution channel, described water-dilution channel is divided into the second channel in the first passage outside described hollow flow-guiding post jamb and described hollow flow-guiding post jamb, and the wall of described hollow flow-guiding post being provided with the second through hole be connected with described second channel by described first passage, described first through hole is only connected with described second channel.
Filtration membrane cartridge provided by the invention, adopt hollow flow-guiding post that water-dilution channel is divided into first passage and second channel, the wall of hollow flow-guiding post has the second through hole, and the first through hole is only connected with described second channel, first the fluid entering water-dilution channel is entered in first passage, then second channel is flowed into by the second through hole on hollow flow-guiding post jamb, flowed out by second channel again, the fluid of water-dilution channel inside is made to become laminar condition from original turbulent condition, be easy to the quick formation of Dynamic Membrane, and Dynamic Membrane can be made to keep remaining in stable condition and normally coming off after ensureing densification, improve fluid components to filter and the efficiency be separated.
In addition, the filtration membrane cartridge in above-described embodiment provided by the invention can also have following additional technical feature:
According to one embodiment of present invention, the two ends of described hollow flow-guiding post are fixedly connected with described lower shrouding with described upper sealing plate respectively, are linked into an integrated entity by multiple described lamination stacked successively.
According to one embodiment of present invention, upper end open, the lower end closed of described hollow flow-guiding post, the two ends of described hollow flow-guiding post respectively with described upper sealing plate and described lower shrouding bolt, and the upper end of described hollow flow-guiding post is through described first through hole.
According to one embodiment of present invention, the wall of described hollow flow-guiding post has multiple described second through hole, the fluid in described first passage flows in described second channel through described second through hole.
According to one embodiment of present invention, the outer surface of described lower shrouding is the low stairstepping in convex or middle high both sides, and inner surface is arcs of recesses.
According to one embodiment of present invention, also comprise pad, institute's pad is separately positioned on described upper sealing plate and between described lower shrouding and described lamination and the middle part of multiple described lamination.
According to one embodiment of present invention, the thickness of adjacent described lamination is not identical, and the thickness of described lamination between 0.1mm ~ 1.2mm, and is provided with support member between adjacent described lamination.
According to one embodiment of present invention, described support member is be arranged on the projection on described lamination, and the altitude range of described projection is 0.05mm-0.5mm.
According to one embodiment of present invention, the outer face of adjacent described lamination is not concordant, and the inner face of adjacent described lamination is not concordant yet.
According to one embodiment of present invention, multiple described lamination comprises the first lamination and the second lamination, and the first lamination described and described the second lamination are arranged alternately.
In description of the invention, it will be appreciated that, term " on ", the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or unit must have specific direction, with specific azimuth configuration and operation, therefore, limitation of the present invention can not be interpreted as.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
By filtration membrane cartridge of the present invention, adopt hollow flow-guiding post that water-dilution channel is divided into first passage and second channel, the wall of hollow flow-guiding post has the second through hole, and the first through hole is only connected with described second channel, first the fluid entering water-dilution channel is entered in first passage, then second channel is flowed into by the second through hole on hollow flow-guiding post jamb, flowed out by second channel again, the fluid of water-dilution channel inside is made to become laminar condition from original turbulent condition, be easy to the quick formation of Dynamic Membrane, and Dynamic Membrane can be made to keep remaining in stable condition and normally coming off after ensureing densification, improve fluid components to filter and the efficiency be separated.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the plan structure schematic diagram of filtration membrane cartridge one embodiment of the present invention;
Fig. 2 be in Fig. 1 A-A to sectional structure schematic diagram;
Fig. 3 is the structure for amplifying schematic diagram in B portion in Fig. 2;
Fig. 4 is the structure for amplifying schematic diagram in C portion in Fig. 2;
Fig. 5 is that the A-A of another embodiment of filtration membrane cartridge of the present invention is to sectional structure schematic diagram;
Fig. 6 is the structural representation of a filtration membrane cartridge of the present invention embodiment again;
Fig. 7 is the structural representation of lamination in filtration membrane cartridge shown in Fig. 1;
Fig. 8 be in Fig. 7 D-D to sectional structure schematic diagram.
Wherein, the corresponding relation in Fig. 1 to Fig. 8 between Reference numeral and component names is:
1 lamination, 11 is protruding, 12 ports, 101 the first lamination, 102 the second laminations, 2 upper sealing plates, 21 first through holes, 3 times shroudings, 4 joint pins, 5 hollow flow-guiding posts, 51 second through holes, 6 water-dilution channels, 61 first passages, 62 second channels, 7 pads.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Referring to Fig. 1 to Fig. 8, described according to some embodiments of the invention filtration membrane cartridge is described.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, the filtration membrane cartridge that one embodiment of the invention provides, comprises the multiple lamination 1, upper sealing plate 2, lower shrouding 3, joint pin 4 and the hollow flow-guiding post 5 that stack successively;
The middle part of described lamination 1 is provided with port 12, and the described port 12 of multiple described lamination 1 stacked successively forms water-dilution channel 6, has the gap flow through for fluid between adjacent described lamination 1; Described upper sealing plate 2 and described lower shrouding 3 are separately positioned on the two ends of described water-dilution channel 6, and described upper sealing plate 2 have the first through hole 21 be connected with one end of described water-dilution channel 6, and described lower shrouding 3 seals the other end of described water-dilution channel 6; Described joint pin 4 passes perpendicularly through multiple described lamination 1 stacked successively, and the two ends of described joint pin 4 are connected with described lower shrouding 3 with described upper sealing plate 2 respectively; Described hollow flow-guiding post 5 is arranged in described water-dilution channel 6, described water-dilution channel 6 is divided into the second channel 62 in the first passage 61 outside described hollow flow-guiding post 5 wall and described hollow flow-guiding post 5 wall, and the wall of described hollow flow-guiding post 5 being provided with the second through hole 51 be connected with described second channel 62 by described first passage 61, described first through hole 21 is only connected with described second channel 62.
Filtration membrane cartridge provided by the invention, adopt hollow flow-guiding post 5 that water-dilution channel 6 is divided into first passage 61 and second channel 61, the wall of hollow flow-guiding post 5 has the second through hole 51, and the first through hole 21 is only connected with described second channel 62, the fluid entering water-dilution channel 6 is made first to enter in first passage 61, then second channel 62 is flowed into by the second through hole 51 on hollow flow-guiding post 5 wall, flowed out by second channel 62 again, this makes the fluid of water-dilution channel 6 inside become laminar condition from original turbulent condition, be easy to the quick formation of Dynamic Membrane, and Dynamic Membrane can be made to keep remaining in stable condition and normally coming off after ensureing densification, improve fluid components to filter and the efficiency be separated.Solve the problems of the prior art, realize goal of the invention of the present invention.
In one embodiment of the invention, as shown in Figure 2, Figure 5 and Figure 6, the two ends of hollow flow-guiding post 5 are fixedly connected with described lower shrouding 3 with described upper sealing plate 2 respectively, are linked into an integrated entity by multiple described lamination 1 stacked successively.
The two ends of hollow flow-guiding post 5 are fixedly connected with lower shrouding 3 with upper sealing plate 2 respectively, multiple lamination 3 is then made to adopt hollow flow-guiding post 5 connect and be integrally fixed, make joint pin 4 not tension stress, only lamination is played a supportive role, reduce the distortion of joint pin 4, be convenient to the dismounting of whole filtration membrane cartridge, maintenance, and improve the service life of filtration membrane cartridge.Certainly, adopt joint pin 4 to connect and fix multiple lamination 1 and be also fine, repeat no more.
In one embodiment of the invention, as shown in Figure 2, Figure 5 and Figure 6, upper end open, the lower end closed of described hollow flow-guiding post 5, the two ends of described hollow flow-guiding post 5 respectively with described upper sealing plate 2 and described lower shrouding 3 bolt, and the upper end of described hollow flow-guiding post 5 is through described first through hole 21.
Upper end open, the lower end closed of described hollow flow-guiding post 5, two ends and described upper sealing plate 2 and lower shrouding 3 adopt be spirally connected be fixedly connected with mode, and the upper end of hollow flow-guiding post 5 is through described first through hole 21, is convenient to the production of whole filtration membrane cartridge, assembling and maintenance.Certainly, art technology in enlightenment of the present invention, be appreciated that the two ends of hollow flow-guiding post 5 and upper sealing plate 2 adopt with lower shrouding 3 weld, the mode such as riveted joint is fixedly connected with, and also can realize goal of the invention of the present invention.
In one embodiment of the invention, as shown in Fig. 2, Fig. 5, the wall of described hollow flow-guiding post 5 has multiple described second through hole 51, the fluid in described first passage 61 flows in described second channel 62 through described second through hole 51.
In the present embodiment, as shown in Figure 2 and Figure 5, described second through hole 51 can from up to down rule be arranged, and also can irregularly arrange; The shape of through hole can be circle as shown in Figure 2 and Figure 5 also can be kidney-shaped as shown in Figure 6 or other shape, but be arranged to uniform circle, and being more conducive to the formation of second channel 62 inner laminar flow, is a kind of preferred embodiment.
In one embodiment of the invention, as shown in Figure 2, Figure 5 and Figure 6, the outer surface of described lower shrouding 3 is the low stairstepping in convex or middle high both sides, and inner surface is arcs of recesses.
The outer surface of lower shrouding 3 is the low stairstepping in convex or middle high both sides, can reduce eddy current, make it can not impact the foundation of Dynamic Membrane and maintenance, reduces its impact on the whole body fluid flow of tank interior, makes liquid stream more steady.And plate shaped lower shrouding, when liquid flows through lower shrouding outward flange, eddy current can be produced, affect formation and the maintenance of Dynamic Membrane, tank interior liquid stream also can be made in addition to cause disorder; The inner surface of lower shrouding 3 is concave arc shape, effectively can weaken internal turbulence, increases fluid stability.
In one embodiment of the invention, as shown in Figure 6, also comprise pad 7, institute's pad 7 is separately positioned on described upper sealing plate 2 and between described lower shrouding 3 and described the lamination 1 and middle part of multiple described lamination 1.
Pad is set and can increases sealing effectiveness, and this pad can be fixed on joint pin and/or hollow flow-guiding post, stability and the intensity of whole filtration membrane cartridge can be increased.
In one embodiment of the invention, as shown in Fig. 2-5, Fig. 8, the thickness of adjacent described lamination 1 is not identical, and the thickness of described lamination 1 between 0.1mm ~ 1.2mm, and is provided with support member between adjacent described lamination 1.
The thickness of lamination 1, in above-mentioned scope, ensure that there are enough contact surfaces the outer face of fluid and lamination 1, is convenient to formation and the maintenance of Dynamic Membrane; Be provided with support member between adjacent laminates 1, can make, between adjacent laminates 1, there is enough gaps, also be beneficial to formation and the maintenance of Dynamic Membrane.
In one embodiment of the invention, as shown in Fig. 2-5, Fig. 8, described support member is the projection 11 be arranged on described lamination, and the described altitude range of protruding 11 is 0.05mm-0.5mm.
Projection 11 on employing lamination, as support member, ensure that the bonding strength between support member and lamination on the one hand, thus reduces the probability that there occurs fracture between support member and lamination, thus improve the reliability of product; On the other hand protruding 11 can be one-body molded with lamination 1, thus improve production efficiency, and then reduce the manufacturing cost of product.
In one embodiment of the invention, as shown in Fig. 2-5, Fig. 8, the outer face of adjacent described lamination 1 is not concordant, and the inner face of adjacent described lamination 1 is not concordant yet.
Because the inward flange of adjacent laminates 1 is not concordant, make the wall of i.e. water-dilution channel 6 uneven, when fluid flows in water-dilution channel 6, active force is produced to lamination 1, lamination 1 is made to produce vibration, under the acting in conjunction of the vibration produced in this vibration and fluid structurecoupling, Dynamic Membrane is applied towards the active force (contrary with the direction that fluid applies power) outside filtration membrane cartridge, then at the easier formative dynamics film of setpoint distance that dynamic filtration film props up outside outer surface; Equally, the outward flange of adjacent laminates 1 is not concordant, also the formation of Dynamic Membrane is convenient to: the not concordant outer surface of filtration membrane cartridge that makes in the outer face of adjacent laminates 1 forms groove, when fluid flows into water-dilution channel by the outer surface of filtration membrane cartridge via the gap between lamination, lamination will be clashed into, and forming turbulent flow at groove place, the particle in turbulent convection body applies and body fluid direction opposite effect power, makes particle carry out reciprocating motion by a small margin and rests on filtration membrane cartridge near surface.Like this, under the acting in conjunction of particle turbulent flow in the trench and body fluid flowing, rest on the setpoint distance place of distance filtration membrane cartridge outer surface, along with more multiparticle is gathered in the setpoint distance place outside filtration membrane cartridge outer surface gradually, then form described Dynamic Membrane gradually in the distance of filtration membrane cartridge outer surface setting.
In one embodiment of the invention, as shown in Figure 8, multiple described lamination 1 comprises different the first of thickness and folds, and 101 and the second lamination 102, the first lamination 101 described and described the second lamination 102 are arranged alternately.
The first lamination adopting thickness different and the second lamination, then can make lamination when fluid flows through its surface, under the effect of fluid structurecoupling, more easily produce vibration, thus easier formative dynamics film, be a kind of preferred embodiment.
In the present invention, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as; Term " multiple " then refers to two or more, unless otherwise clear and definite restriction.The term such as term " installation ", " being connected ", " connection ", " fixing " all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; " being connected " can be directly be connected, and also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.