CN201534062U - Membrane filtering device for soaking type plate frame - Google Patents

Abstract

A membrane filtering device for a soaking type plate frame is formed by attaching or fusing a central base plate, a flow guide layer and a filter membrane. A plurality of open pores formed on the central base plate are utilized to evenly disperse the suction pressure when liquid is filtered, so that the filtering speed in the membrane filtering device is increased; the utility model can also increase the speed of liquid flowing into the filtering device during backwashing or chemical medicine washing and promote the efficiency of the device during the washing of membrane; a plurality of radial and concentric or eccentric round flow guide ditches are densely distributed on the surface of the central base plate; in addition to average guidance of the liquid flowing in the filtering device, the utility model can increase the filtrate collecting speed, thereby enhancing the filtering efficiency.

Description

Immersion type sheet frame membrane filtration device

Technical field

The utility model is about a kind of immersion type sheet frame membrane filtration device, refers in particular to fast, the immersion type sheet frame membrane filtration device that can anti-permanent use of a kind of usefulness height, efficient.

Background technology

Environmental project is emerging in recent years engineering field, is primarily aimed at off-air, give up (dirt) water, discarded object (resource thing), poisonous chemical substance (harmful substance) etc. that the industry or the people's livelihood produce, does an effective and appropriate disposal.Wherein in the processing of useless (dirt) water, the conventional process step is divided into one-level and handles (physical treatment): mainly be in order to remove floating thing and the suspended solid in the water, and have neutralization or mix well the pre-treatment of effect as subsequent treatment, wherein comprise and block dirt, sand setting, floating removing or the precipitation function; Two stage treatment (biological treatment) is primarily aimed at the sewage after one-level is handled, and carries out biology again and decomposes, standard trickling filtration, rotating biological plectane method and the conventional actived sludge etc. of comprising wherein commonly used; Tertiary treatment (advanced processes) is then further handled to standard higher water quality and standard at the water body after handling through I and II again, comprises technology such as fine sieve, filtration, oxidation, activated carbon and reverse osmosis.But because above-mentioned conventional process technology still has soil, dosing, the time of staying and final precipitation to remove factor affecting such as efficient, still have certain purified treatment load at middle water recycling, therefore (MembraneBio-reactor, mode MBR) is just answered pregnant and is given birth in conjunction with the immersion type bioreactor of carrying out a biological disposal upon to utilize membrane filtration.

Membrane filtration mainly is to utilize film micropore to carry out filtration treatment, wherein comprise micro-filtration (MF) and ultrafiltration (UF) etc., its form has sheet frame type, doughnut, spiral wound and tubulose, the main utilization makes after via film water see through film in the mode of malleation pressurization or negative pressure extracting effluent sewage to enter and produce the water effluent and go out, make impurity or pollutant be barred from water inlet end.But because this kind processing mode need or extract by pressurization, can cause impurity or microbial adhesion on film, to form obstruction, therefore generally can clean, utilize filtrate backwash or medicine in filter membrane to wash with the filter membrane surface aeration and increase the film life-span, wherein common with the object of being accumulated on the aeration cleaning filter membranes again, better design then can remove in the object that is attached on the filter membrane such as microorganism, suspended solids, the water impurity etc. by back flush, makes under the filter membrane long period of operation filter efficiency unaffected.

And because the pressurization of film, extract and clean the external force that is produced and produce water, can design and the film utilization be pasted or the mode coating of fusion is fixed on the middle plateform with certain intensity to increase the intensity of external carbuncle in the film tolerance, in addition also can the channel that catchment be set on middle plateform and collect filter liquide, common form is the parallel noninterlace length ditch of unidirectional distribution and cooperates the single internal openings that links with outlet pipe, right this kind mode not only can make membrane filtration efficient relatively poor and more easily have and collect uneven guiding effect bad phenomenon because of pressure transmission inequality, also can make filter plant easily have pollutant to accumulate on the dead angle, thereby reduce whole water-flowing amount or water outlet fluency, in addition, this type of design is difficult for that also liquid oppositely is distributed in causes backwash or chemical medicine to wash the efficient reduction everywhere in the filter plant, therefore visible above-mentioned technology still has many disappearances and deficiency, real non-good design, and demand urgently being improved.

The utility model content

The purpose of this utility model is to provide a kind of utilization to guide and the perforate design of dispersing and filtering suction increases the immersion type sheet frame membrane filtration device of filter efficiency.

Another purpose of the present utility model is to utilize the design of perforate cooperation curb, average guiding of difference and dispersion suction negative pressure and then increase filter efficiency.

It is radial and with one heart or the design of the curb arranged of off-centre operation that another purpose of the present utility model is to see through, and the speed when increasing liquid and flowing in structure also increases integral filter efficient simultaneously, and the not readily accessible dead angle of backwash liquor when reducing backwash.

Another purpose of the present utility model is to utilize medicine to wash perforate to speed chemical liquid and riddle speed in the filter, quickens medicine and washes efficient.

A purpose more of the present utility model is to provide a kind of usefulness height, fast, the back-washable immersion type sheet frame membrane filtration device of transmission.

Can reach a kind of immersion type sheet frame membrane filtration device of above-mentioned purpose, comprise: central substrate, this substrate have more than one perforate or are aided with curb radial and concentric or that off-centre operation is arranged; Two water conservancy diversion layers are net Like structure, and are attached at the both sides of central substrate respectively; Two filter membranes are attached at the outside of both sides water conservancy diversion layer respectively, then are laid with a plurality of filter openings on the film; At least one liquid is extracted conduit out, is positioned at central substrate inside, and these conduit both sides offer one or more perforates, and this perforate is to be communicated with the perforation of central substrate, ozzle binding outside this catheter tip and the central substrate.

Pass through said structure, the utility model removes the suction negative pressure in the time of can utilizing plural perforate dispersing liquid to filter, promote the efficient when filtering, and can set up the curb that concentric circles or off-centre operation and radial shape are arranged, utilize this curb to increase the speed of liquid flow, also can increase the speed that filtrate is collected simultaneously; Increase medicine in addition and wash perforate, the speed when liquid enters in the time of also can increasing backwash or chemical medicine and wash, the efficient when promoting the utility model and cleaning film.

Immersion type sheet frame membrane filtration device provided by the utility model is compared with the prior art, and technical scheme provided by the utility model has following advantage:

1. utilize the design of perforate of the present utility model and curb, guide respectively and disperse to aspirate negative pressure and increase filter efficiency.

2. curb is the design that the portion of concentric circles or off-centre operation establishes arrangement, and the speed in the time of can increasing liquid and flow in structure also increases integral filter efficient simultaneously, and increases the backwash liquor dispersed homogeneous degree.

3. utilize medicine of the present utility model to wash perforate or curb and ozzle and medicine and wash the design of ozzle binary channels, can be rapidly and evenly disperse backwash liquor or Chemical cleaning soup to this filter filter membrane inside, promote the efficient that medicine is washed.

Description of drawings

Fig. 1 is a three-dimensional combination schematic diagram of the present utility model;

Fig. 2 is a perspective exploded view of the present utility model;

Fig. 3 is a part side sectional view of the present utility model;

Fig. 4 A is perforate of the present utility model and conduits configurations cutaway view;

Fig. 4 B is that medicine of the present utility model is washed perforate and medicine is washed the conduits configurations cutaway view;

Fig. 5 A is a perforate water conservancy diversion schematic diagram of the present utility model;

Fig. 5 B is the water conservancy diversion schematic diagram that perforate of the present utility model cooperates curb;

Fig. 6 A is that medicine of the present utility model is washed the perforate schematic diagram;

Fig. 6 B is that medicine of the present utility model is washed the schematic diagram that perforate cooperates curb;

Fig. 7 A-C is respectively perforate of the present utility model and conduits configurations schematic diagram;

Fig. 8 A-F is respectively perforate of the present utility model and curb configuration schematic diagram;

Reference numeral:

1, central substrate;

2, water conservancy diversion layer;

3, filter membrane;

4, conduit;

5, medicine is washed conduit;

11, curb;

12, perforate;

13, peripheral curb;

14, medicine is washed perforate;

41, perforation;

42, medicine is washed perforation;

51, ozzle;

61, medicine is washed ozzle.

The specific embodiment

See also Fig. 1 and Fig. 2, be respectively three-dimensional combination schematic diagram of the present utility model and perspective exploded view, by among the figure as can be known, the utility model is to comprise: central substrate 1; Two water conservancy diversion layers 2 are net Like structure, and are attached at the both sides of central substrate 1 respectively; Two filter membranes 3 are attached at the outside of both sides water conservancy diversion layer 2 respectively, and then are laid with a plurality of filter openings on the filter membrane 3.Immersion type sheet frame membrane filtration device of the present utility model can be provided with medicine in addition and wash ozzle 61.

See also Fig. 3, be part side sectional view of the present utility model, by among the figure as can be known, this central substrate 1 has one or more perforate 12, and configurable a plurality of curb 11 radial and that arrange with concentric circles or off-centre operation.Liquid is along curb 11 guiding, enter the perforate 12 that is arranged at home position after, see through the perforation 41 that is connected with perforate 12 and via the transmission of conduit 4, discharge liquid after arriving ozzle 51 ends.

See also Fig. 4 A, be part side sectional view of the present utility model, by among the figure as can be known, these conduit 4 both sides offer a plurality of perforation 41, and this perforation 41 is to be communicated with the perforate 12 of central substrate 1, and these conduit 4 upper ends then are linked to one of central substrate 1 outside ozzle 51.

See also Fig. 4 B, immersion type sheet frame membrane filtration device of the present utility model can be provided with medicine and wash ozzle 61, the Chemical cleaning soup can be washed ozzle 61 by medicine and enter medicine and wash conduit 5 and wash perforation 42 through medicines and wash perforate 14 with the medicine of central substrate 1 and escape into filter membrane inside, and is directed to filter membrane 3 inside everywhere by curb 11.See also Fig. 6 A, the Chemical cleaning soup is after medicine is washed ozzle 61 and entered filter, medicine wash the binary channels design of ozzle 61 and ozzle 51 can be rapidly with soup from perforate 14 send into filter membrane inner and rapidly with filter membrane in existing liquid extrude from perforate 12, and, so can make rapidly to be full of the medicine washing lotion in the filter by ozzle 51 discharges.

Cooperation by said structure, the utility model be utilize suction negative pressure when an above perforate 12 is average to disperse liquid filtering, and utilize curb 11 to increase the speed of liquid flow, and also can increase the speed that filtrate is collected simultaneously, promote the efficient when filtering.

On the other hand, the utility model also can be washed conduit 5, curb 11 by medicine when backwash or chemical medicine are washed cooperation and transmission, the speed in the time of can increasing filtrate and oppositely enter, and the efficient can make filtrate flows make cleaning filter membranes 3 everywhere to film the time is promoted.

See also Fig. 5 A and Fig. 5 B, be respectively perforate water conservancy diversion schematic diagram of the present utility model and perforate and cooperate the water conservancy diversion schematic diagram of curb when filtration is carried out, by among the figure as can be known, central substrate 1 has more than one perforate 12, and configurable a plurality of curb 11 radial and that arrange with concentric circles or off-centre operation that contains, promptly curb is that concentric circles or the off-centre operation radial formation arachnoid portion of arranging in pairs or groups establishes the design of arrangement.

And this curb 11 its peripheral places are to be intensive laying, when making peripheral curb 13 guiding liquid, really in the active set and guiding, avoid opening diffusingly because of distance perforate 12 curb 11 far away or that lay, and reduce its liquid-conducting effect.

See also Fig. 6 A and Fig. 6 B, be respectively the backwash schematic diagram of perforate backwash schematic diagram of the present utility model and perforate cooperation curb, by among the figure as can be known, cooperation guiding by structure, disperse rapidly and evenly backwash liquor or chemical medicine wash liq to this filter filter membrane everywhere, increase by the inner efficient of adhering to dirt of cleaning film surface of filter membrane.

See also Fig. 7 A to Fig. 7 C, be respectively perforate of the present utility model and conduits configurations figure, by among the figure as can be known, this central substrate 1 is optionally laid plurality of openings 12, for respect to the symmetry of central substrate and be evenly distributed mode in addition aligning section establish.Perforate 12 belows then are connected with the perforation 41 of conduit 4, are connected in series each perforate 12 and this conduit 4 also is able to different types, come transmit fluid.

See also Fig. 8 A to Fig. 8 C, be respectively curb allocation plan of the present utility model, by among the figure as can be known, each contains curb 11 and peripheral curb 13 radial and concentric circles or off-centre operation arrangement, curb 11 in each concentric circles or off-centre operation arrangement interconnects by radial curb 11 or peripheral radial curb 13, equally must make liquid guide to each perforate 12 and also discharge by ozzle 51; Speed when this class designs to such an extent that make liquid discharge or enter and efficient have apparent lifting.

See also Fig. 8 D to Fig. 8 F, be respectively curb allocation plan of the present utility model, by among the figure as can be known, the arrangement of curb 11 also must be made as type in upright arrangement, pattern or diacytic type, makes liquid can guide to each perforate 12 and discharges by ozzle 51; Speed when the design of this class equally must make liquid discharge or enter and efficient have apparent lifting.

The utility model is a kind of immersion type sheet frame membrane filtration device, also is applicable in polarity, low polarity or the non-polar solution, filters.

Above-listed detailed description is specifying at a possible embodiments of the present utility model, but this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model skill spirit does and implement or change, all should be contained in the application's the claim.

Claims (4)

1. an immersion type sheet frame membrane filtration device is characterized in that, comprising:

The curb that central substrate, this central substrate have the perforate of plural number and have concentric or off-centre operation and radial arrangement; Two water conservancy diversion layers are network structure, and are attached at the both sides of central substrate respectively;

Two filter membranes are attached at the outside of both sides water conservancy diversion layer respectively;

At least one liquid is extracted conduit out, is arranged at central substrate inside, and these conduit both sides offer a plurality of perforation, and this perforation is to be communicated with the perforate of central substrate, and this conduit upper end then is linked to the ozzle outside the central substrate.

2. immersion type sheet frame membrane filtration device as claimed in claim 1, it is characterized in that, described central substrate is provided with that medicine is washed ozzle and medicine is washed perforation, chemical liquid is washed ozzle by medicine and is entered medicine and wash conduit and wash perforation through medicine and wash perforate with the medicine of central substrate and escape into filter membrane inside, and is directed to film everywhere by curb.

3. immersion type sheet frame membrane filtration device as claimed in claim 1 is characterized in that, described perforate, for respect to the symmetry of central substrate and be evenly distributed mode in addition aligning section establish.

4. an immersion type sheet frame membrane filtration device is characterized in that, comprising:

Central substrate, this central substrate have a plurality of perforates and have the curb of type in upright arrangement, pattern or diacytic type; Two water conservancy diversion layers are network structure, and are attached at the both sides of central substrate respectively;

Two filter membranes are attached at the outside of both sides water conservancy diversion layer respectively;

At least one liquid is extracted conduit out, is arranged at central substrate inside, and these conduit both sides offer a plurality of perforation, and this perforation is to be communicated with the perforate of central substrate, and this conduit upper end then is linked to the ozzle outside the central substrate.

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