CN106310952A - Membrane module for water treatment and membrane filter - Google Patents
Membrane module for water treatment and membrane filter Download PDFInfo
- Publication number
- CN106310952A CN106310952A CN201610765992.6A CN201610765992A CN106310952A CN 106310952 A CN106310952 A CN 106310952A CN 201610765992 A CN201610765992 A CN 201610765992A CN 106310952 A CN106310952 A CN 106310952A
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- membrane
- film bar
- film
- water
- membrane module
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- 239000012528 membrane Substances 0.000 title claims abstract description 274
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 238000007667 floating Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims description 46
- 238000005273 aeration Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 24
- 238000005276 aerator Methods 0.000 claims description 23
- 230000004888 barrier function Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 9
- 238000005374 membrane filtration Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 208000002925 dental caries Diseases 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 264
- 239000000835 fiber Substances 0.000 description 35
- 238000012554 master batch record Methods 0.000 description 13
- 238000011068 loading method Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
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- 238000009826 distribution Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/13—Specific connectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/06—Submerged-type; Immersion type
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a membrane module for water treatment and a membrane filter, and aims to improve the capacity of a water treatment membrane filter device for resisting membrane pollution. The membrane module comprises a filter unit and a flow collection unit, wherein the filter unit comprises membrane elements; each of the membrane elements comprises hollow membrane element body with one end opened but other parts closed; the flow collection unit comprises a flow collection component; the flow collection component is provided with a flow collection cavity communicating with the opening of the membrane element and an output opening communicating with the flow collection cavity; the membrane element bodies are long-strip type membrane bars with flat cross sections; the membrane bars are provided with connection ends and free ends; the connection ends are arranged on the flow collection component to enable openings of the membrane bars to communicate with the flow collection cavity; the free ends are in a floating state under the retention of water to be treated when the membrane module is in a use state of being immersed in the water to be treated; the flow collection component is tubular, and a plurality of the membrane bars arrayed along the length direction of the flow collection component in a spacing manner are perpendicularly mounted on the flow collection component.
Description
Technical field
The present invention relates to membrane component, membrane module and the film filter processed for water, particularly relate to membrane bioreactor
Membrane component, membrane module and film filter." membrane bioreactor " i.e. Membrane Bio-Reactor, referred to as MBR.
Background technology
In existing membrane bioreactor, separated type MBR can be divided into according to the combining form of membrane module Yu bioreactor
And submerged MBRs.Membrane module and the bioreactor of separated type MBR are provided separately, mixed liquor during work, in bioreactor
Beating the filter end to membrane module after circulating pump supercharging, the penetration by liquid film in mixed liquor, becomes at system under pressure
Reason water.The membrane module of submerged MBRs is then placed in inside bioreactor, and during work, staying water enters membrane biological reaction
The activated sludge that after device, major part pollutant therein are mixed in liquid is removed, then is filtered out by membrane module under pressure
Water.Compared to separated type MBR, the usual volume of submerged MBRs is less and operating cost is relatively low.
At present, the membrane component that the membrane module in submerged MBRs is used mainly has board-like film and hollow-fibre membrane two kinds.Plate
Formula film is the membrane component of a kind of hollow platy or lamellar.The membrane module profile using board-like film is similar to common plate and frame filter pressing
Machine.Hollow-fibre membrane is that a kind of external diameter is generally 40-250 micron, internal diameter is generally the hollow fiber membrane element of 25-42 micron
Part.In the submerged MBRs using hollow-fibre membrane, its membrane module includes the fibre bundle being made up of a large amount of hollow-fibre membranes, this
The two ends device of a little fibre bundles fixes and the opening of hollow-fibre membrane connects with the manifold of flow concentrating part；This membrane module is direct
It is placed in bioreactor and is immersed in staying water formation Nets impregnated.
The mechanical strength of board-like film is high, and service life is long, and preventing membrane pollution ability is strong, but produces higher with use cost.Adopt
Manufacture relatively simple with the membrane module of board-like film, run easy to operate, easily carry out the cleaning of board-like film, but, board-like film
Loading density is smaller, and the membrane area that will reach bigger generally requires and arranges bulky membrane module.The machine of hollow-fibre membrane
Tool intensity is relatively low, easy fracture of wire during use, and preventing membrane pollution ability is the most weak, but produces relatively low with use cost.In employing
The membrane module of hollow fiber film is the most sensitive to fouling membrane, and membrane separating property is had a significant impact by Pore Blocking and concentration polarization, mistake
During filter, pressure drop is relatively big, but, the loading density of hollow-fibre membrane is the highest, and under unit volume, membrane area is typically up to 16000-
30000m2/m3.In general, compared to the membrane module of the board-like film of employing, the membrane component dress of the membrane module of hollow-fibre membrane is used
Filling density is bigger but contamination resistance is more weak.
Hollow-fibre membrane loading density has benefited from greatly the profile of its strip.When substantial amounts of hollow-fibre membrane forms fibre bundle
Time, total membrane area is the biggest.But, owing between hollow-fibre membrane, space is extremely compact, by hollow-fibre membrane during filtration
Being intercepted the dirt got off easily to assemble in fibre bundle, this is also one of reason causing the easy contamination and plugging of hollow-fibre membrane.
Additionally, above-mentioned Nets impregnated specifically use the upper end of fibre bundle is connected on flow concentrating part so that
The opening of hollow-fibre membrane connects with the manifold of flow concentrating part, by the lower end of fibre bundle and the relatively-stationary knot of aerator
Structure, during work, can not move in the two ends of fibre bundle, gradually assembles in fibre bundle along with filtering the dirt formed, and aerator
The most again can not useful effect in the upper end of fibre bundle, eventually result in fibre bundle upper area formed dirt crystallizing field.
Summary of the invention
The dirt existed for above-mentioned Nets impregnated assembles the situation being difficult to discharge in fibre bundle, this
Bright to be solved technical problem is that: the membrane module processed for water of brand-new design, film filter and for this film are provided
The membrane component of assembly, to improve water treatment membrane filtration device to antifilm contaminative ability.
The membrane module that the first of the present invention processes for water, including: filter element, described filter element includes membrane element
Part, described membrane component includes that the hollow membrane component body of only one end open is closed on the whole body, and the outer surface of described membrane component body is
Membrane filtration face；Afflux unit, described afflux unit includes that flow concentrating part, described flow concentrating part are provided with the open communication with membrane component
Manifold and the delivery outlet that connects with manifold；Described membrane component body is the strip film bar of flat cross section, described film
Bar has one and connects end and a free end, and wherein, described connection end is placed on flow concentrating part and makes the opening of film bar even
Logical described manifold, described free end then when this membrane module is in the use state being immersed in staying water described
Under the holding of staying water in floating state.
Above-mentioned the first for water process membrane module in, membrane component body is the strip film bar of flat cross section, by
Being all strip in film bar and hollow-fibre membrane, therefore, the loading density of film bar is higher.Meanwhile, the cross section of film bar is again in flat
Flat-shaped, this and the circular in cross-section of hollow-fibre membrane or similar round obvious differences, and theoretically, when the horizontal stroke of film bar
When cross section is flat, film bar can obtain to a certain extent and be similar to this anti-film formed because face is smooth of board-like film
Pollutant performance (fluid move on smooth face form certain shearing force thus drive on face the pollutant of attachment).Also
That is, the special shape of above-mentioned film bar makes this film bar may be better than Flat Membrane in terms of loading density, originally in shape simultaneously
The preventing membrane pollution aspect of performance that body is brought is better than again hollow-fibre membrane.
On the other hand, the first film bar in the membrane module that water processes above-mentioned also has a freedom in addition to connecting end
End, the two ends of the fibre bundle of this Nets impregnated described with background technology again all have by the mode that device is fixing
Essential distinction.Obviously, the first membrane module processed for water above-mentioned belongs to immersion type membrane component, is in leaching at this membrane module
Not during the use state in staying water, described free end is in floating state under the holding of staying water, so, just
Impart the bigger degree of freedom of film bar itself at this free end and this free end place, so that tunicle bar is blocked when filtering
The dirt cut down can the easiest be discharged between film bar.
The film filter that the first of the present invention processes for water, including membrane module and the aeration dress that may act on membrane module
Putting, wherein, described membrane module uses the first membrane module processed for water above-mentioned；The aeration opening of described aerator is arranged at
The periphery of film bar the outside aeration of length direction generally along film bar.
Obviously, the film filter that the first of the present invention processes for water belongs to submerged MBRs, particular belongs to submergence
Formula membrane bioreactor.Due to the free end of film bar under the holding of staying water in floating state thus impart this freedom
End and the bigger degree of freedom of film bar at this free end place itself, the aeration opening of aerator is arranged at the periphery of film bar simultaneously
And generally along the outside aeration of length direction of film bar, therefore, during filtration tunicle bar intercepted the dirt got off will easily
Discharge between film bar, be prevented effectively from film bar formation dirt crystallizing field.
The membrane module that the second of the present invention processes for water, including: filter element, described filter element includes membrane element
Part, described membrane component includes that the hollow membrane component body of only one end open is closed on the whole body, and the outer surface of described membrane component body is
Membrane filtration face；Afflux unit, described afflux unit includes that flow concentrating part, described flow concentrating part are provided with the open communication with membrane component
Manifold and the delivery outlet that connects with manifold；Described membrane component body is the strip film bar of flat cross section, described film
Bar has one and connects end and a free end, and wherein, described connection end is placed on flow concentrating part and makes the opening of film bar even
Logical described manifold, described free end then when this membrane module is in the use state being immersed in staying water described
Under the holding of staying water in floating state；Described flow concentrating part is to be vertically installed with many edges on tubulose and this flow concentrating part
The length direction spaced film bar of this flow concentrating part.
Above-mentioned the second is at the first on the basis of the membrane module that water processes for the membrane module that water processes, to collection
Structure and the film bar mounting means on this flow concentrating part of stream unit have carried out more specifically setting.Therefore, the second
The membrane module processed for water has the first advantage for the membrane module of water process equally.
The film filter that the second of the present invention processes for water, including membrane module and the aeration dress that may act on membrane module
Putting, wherein, described membrane module uses the membrane module that the second of the present invention processes for water；The aeration opening of described aerator sets
It is placed in the periphery of film bar and generally along the outside aeration of length direction of film bar.
The film filter that the second of the present invention processes for water falls within submerged MBRs, particular belongs to immersion
Membrane bioreactor.Due to the free end of film bar under the holding of staying water in floating state thus impart this free end
And bigger degree of freedom of the film bar at this free end place itself, the aeration opening of aerator is arranged at the periphery of film bar also simultaneously
Generally along the outside aeration of length direction of film bar, therefore, during filtration tunicle bar intercepted the dirt that gets off will easily from
Discharge between film bar, be prevented effectively from film bar formation dirt crystallizing field.
Membrane module that the first membrane module processed for water the most above-mentioned or the second process for water, general and
Speech, when this membrane module is in described use state, described film bar is to connect longitudinal in the way of end is positioned at below free end setting
Put.It addition, for the attitude more preferably controlling film bar, described membrane component also includes the position being arranged on described film bar free end
Control parts；The stress that these position control parts rely on certainly in staying water is drawn free end thus is controlled film bar and exist
Attitude in staying water.In particular, if described film bar is positioned at certainly to connect end when membrane module is in described use state
Longitudinally disposed by the mode below end, the most described position control parts can rely on natural buoyancy to be pulled up free end and make film bar
In longitudinally disposed in staying water, thus prevent film bar free end from sinking.
The third membrane module processed for water of the present invention, including: filter element, described filter element includes membrane element
Part, described membrane component includes that the hollow membrane component body of only one end open is closed on the whole body, and the outer surface of described membrane component body is
Membrane filtration face；Afflux unit, described afflux unit includes that flow concentrating part, described flow concentrating part are provided with the open communication with membrane component
Manifold and the delivery outlet that connects with manifold；Described membrane component body is strip film bar, and described film bar has a company
Connecing end and a free end, wherein, described connection end is placed on flow concentrating part manifold described in the open communication making film bar,
Described free end then when this membrane module is in the use state being immersed in staying water at described staying water
Under holding in floating state；And when this membrane module is in described use state, film bar is positioned at above free end to connect end
Mode longitudinally disposed.
It is different from the first membrane module processed for membrane module and the second of water process above-mentioned for water, the present invention's
For the membrane module that water processes, the third specifically defines that described film bar is to connect when this membrane module is in described use state
It is longitudinally disposed that end is positioned at the mode above free end.The third membrane module processed for water falls within immersion type membrane component, with
Sample, when this membrane module is in the use state being immersed in staying water, described free end is the guarantor of staying water
Hold down in floating state, so, just impart the bigger degree of freedom of film bar itself at this free end and this free end place, from
And when making to filter tunicle bar intercepted the dirt that gets off can the easiest discharge between film bar.Further, due to when being somebody's turn to do
Membrane module when being in described use state described film bar by connect end be positioned at above free end in the way of longitudinally disposed, the most more have
It is beneficial to dirt discharge from the bottom of film bar under gravity.
The film bar of the third membrane module processed for water above-mentioned preferably employs the strip film bar of flat cross section.Due to
This film bar and hollow-fibre membrane are all strip, and therefore, the loading density of this film bar is higher.Meanwhile, this film bar is transversal
Face again in flat, this circular in cross-section with hollow-fibre membrane or similar round obvious differences, and theoretically, when
When the cross section of film bar is flat, film bar can obtain to a certain extent be similar to board-like film this because face is smooth shape
The preventing membrane pollution performance become.The i.e. special shape of film bar makes this film bar may be better than Flat Membrane in terms of loading density, simultaneously
The preventing membrane pollution aspect of performance brought in shape itself is better than again hollow-fibre membrane.
The most to the third further improvement in the membrane module that water processes above-mentioned, described membrane component also includes arranging
Position control parts on described film bar free end；These position control parts rely on and come from the stress in staying water
Draw free end thus control film bar attitude in staying water.In particular, described position control parts can rely on certainly
Heavy sensation of the body power is drawn free end downwards and is made film bar in longitudinally disposed in staying water, thus prevents film bar free end from floating.
The third film filter processed for water of the present invention, including membrane module and the aeration dress that may act on membrane module
Putting, described membrane module uses the third membrane module processed for water above-mentioned；The aeration opening of described aerator is arranged at film bar
Lower section and generally along the outside aeration of length direction of film bar.
The third film filter processed for water of the present invention falls within submerged MBRs, particular belongs to immersion
Membrane bioreactor.Due to the free end of film bar under the holding of staying water in floating state thus impart this free end
And bigger degree of freedom of the film bar at this free end place itself, the aeration opening of aerator is arranged at the lower section of film bar also simultaneously
Generally along the outside aeration of length direction of film bar, therefore, during filtration tunicle bar intercepted the dirt that gets off will easily from
Discharge between film bar, especially discharge from the bottom of film bar, be prevented effectively from film bar formation dirt crystallizing field.
Can be used for the membrane component of above-mentioned several membrane module processed for water, close the hollow of only one end open including the whole body
Membrane component body, the outer surface of described membrane component body is membrane filtration face, and wherein, described membrane component body is flat cross section
Strip film bar, described film bar has one and connects end and a free end, and described connection end is for being connected with flow concentrating part
Make the manifold in flow concentrating part described in the open communication of film bar, described free end then this membrane component be in be immersed in pending
During use state in water body in floating state under the holding of described staying water.Above-mentioned membrane component have employed both different
In board-like film also different from the brand-new design of hollow-fibre membrane, improve the contamination resistance of membrane component.
As a kind of concrete structure of above-mentioned membrane component, described film bar include the first strip filtration membrane of being oppositely arranged and
Second strip filtration membrane, the edge of described first strip filtration membrane is by the first left side, the first right edge, the first free end
Base and first connects limit, bottom and constitutes, the edge of described second strip filtration membrane by the second left side, the second right edge, the
Two free end bases and second connect limit, bottom constitute, between described first left side and the second left side, the first right edge with
Connect as one respectively thus first between second right edge and between the first free end base and the second free end base
Forming cavity between strip filtration membrane and the second strip filtration membrane, first connects limit, bottom is connected limit, bottom each other with second
It is not connected to form the lip communicated with cavity.The film bar using said structure easily manufactures, and can fully reduce the cost of film bar.
Additionally, described film bar also include being arranged between the first strip filtration membrane and the second strip filtration membrane every
Film, cavity is divided into former and later two cavitys all turned on described lip by described barrier film.By at the first strip filtration membrane
And set up barrier film between the second strip filtration membrane, be possible to prevent the first strip filtration membrane and the second strip filtration membrane outside
Fit each other under portion's pressure, affect filter efficiency.
Described first strip filtration membrane and the second strip filtration membrane all preferably employ polyvinylidene difluoride film, polyethylene
Any one in the fine thin film of thin film, polypropylene film, polysulphone film, Polyethersulfone membranes, polypropylene and polyvinyl chloride film.This
Outward, between described first left side and the second left side, between the first right edge and the second right edge and at the bottom of the first free end
The most preferably it is integrated by thermal welding between limit and the second free end base.
The attitude of more preferable control film bar, the above-mentioned membrane component of the present invention also includes the position being arranged on described film bar free end
Put control parts；The stress that these position control parts rely on certainly in staying water is drawn free end thus is controlled film bar
Attitude in staying water.In particular, if film bar is positioned at certainly to connect end when this membrane component is in described use state
Longitudinally disposed by the mode below end, the most described position control parts rely on natural buoyancy to be pulled up free end and make film bar exist
In longitudinally disposed in staying water.If film bar is positioned at above free end to connect end when this membrane component is in described use state
Mode longitudinally disposed, the most described position control parts rely on self gravitation draw free end downwards and make film bar at pending water
In longitudinally disposed in body.
Below in conjunction with the drawings and specific embodiments, the present invention is described further.The aspect that the present invention adds and
Advantage will part be given in the following description, and part will become apparent from the description below, or by the practice of the present invention
Recognize.
Accompanying drawing explanation
Fig. 1 is that a kind of of film filter that the present invention processes for water uses view.
Fig. 2 is a kind of STRUCTURE DECOMPOSITION schematic diagram of the membrane component that the present invention processes for water.
Fig. 3 is the structural grouping schematic diagram of membrane component shown in Fig. 2.
Fig. 4 is a kind of structural representation of the membrane component free end position control parts that the present invention processes for water.
Fig. 5 is a kind of structural representation of the film filter that the present invention processes for water.
Fig. 6 is the another kind of structural representation of the film filter that the present invention processes for water.
Fig. 7 is another structural representation of the film filter that the present invention processes for water.
Fig. 8 is that a kind of of film filter that the present invention processes for water uses view.
Detailed description of the invention
Membrane module as shown in Figure 1, including: filter element 100, its filter element 100 includes membrane component 110, described film
Element 110 includes that the hollow membrane component body of only one end open is closed on the whole body, and the outer surface of described membrane component body is membrane filtration
Face；Afflux unit 200, described afflux unit 200 includes that flow concentrating part 210, described flow concentrating part 210 are provided with and membrane component 110
The manifold 211 of open communication and the delivery outlet 212 that connects with manifold 211；Described membrane component body is flat cross section
Strip film bar 111, described film bar 111 have one connect an end 111a and free end 111b, wherein, described connection end
111a is placed in and makes the opening 111d of film bar 111 connect described manifold 211, described free end 111b on flow concentrating part 210
Then when this membrane module is in the use state being immersed in staying water under the holding of described staying water in floating
Dynamic state；Additionally, when this membrane module is in described use state, described film bar 111 is positioned at free end to connect end 111a
Mode below 111b is longitudinally disposed.Due to when this membrane module is in the use state being immersed in staying water, described
Free end 111b is in floating state under the holding of staying water, so, just imparts this free end 111b and this freedom
The bigger degree of freedom of film bar 111 at end 111b place itself, so that tunicle bar 111 is intercepted the dirt energy got off when filtering
The easiest enough discharge between film bar 111.Owing to free end 111b is positioned at the upper end of film bar 111, accordingly even when at this film
Assembly use time aerator 300 can not useful effect in the upper end of film bar 111, (in submerged MBRs, aerator 300 is positioned at film
Below assembly), also it is not result in that the upper area at film bar 111 forms dirt crystallizing field.
As Figure 1-3, the membrane component 110 in above-mentioned membrane module includes the whole body and closes the hollow membrane element of only one end open
Part body, the outer surface of described membrane component body is membrane filtration face, and described membrane component body is the strip film of flat cross section
Bar 111, described film bar 111 has connection an an end 111a and free end 111b, described connection end 111a and is used for and afflux
Parts 210 connect and make the manifold 211 in flow concentrating part 210 described in the open communication of film bar 111, and described free end 111b is then
When this membrane component is in the use state being immersed in staying water in floating under the holding of described staying water
State.The above-mentioned strip film bar 111 that membrane component body is flat cross section, owing to film bar 111 is all with hollow-fibre membrane
Strip, therefore, the loading density of these film bars 111 is higher.Meanwhile, the cross section of film bar 111 again in flat, this and hollow
The circular in cross-section of fibrous membrane or similar round obvious differences, and theoretically, when the cross section of film bar is flat
Time, film bar can obtain to a certain extent and be similar to this preventing membrane pollution performance formed because face is smooth of board-like film.Cause
This, the special shape of above-mentioned film bar 111 makes this film bar 111 may be better than Flat Membrane in loading density, simultaneously in shape itself
The preventing membrane pollution aspect of performance brought is better than again hollow-fibre membrane.As it is shown on figure 3, set a length of L of above-mentioned film bar 111, wide
Degree is W, and thickness is H, and wherein L/W is length-width ratio, and W/H is flakiness ratio, then in this detailed description of the invention, the flakiness ratio of film bar 111 is excellent
Elect as 5 to 30 and length-width ratio be preferably greater than 10.
As Figure 2-3, as a kind of concrete structure of film bar 111, this film bar 111 includes the first strip being oppositely arranged
Filtration membrane 111a and the second strip filtration membrane 111b, the edge of described first strip filtration membrane 111a is by the left of first
Limit, the first right edge, the first free end base and first connect limit, bottom and constitute, the limit of described second strip filtration membrane 111b
Cause the second left side, the second right edge, the second free end base and second connect limit, bottom constitute, described first left side with
Between second left side, between the first right edge and the second right edge and the first free end base and the second free end base it
Between connect as one respectively thus between the first strip filtration membrane 111a and the second strip filtration membrane 111b formed cavity
111c, the first connection limit, bottom is connected limit, bottom and is not connected to each other form the lip 111f communicated with cavity 111c with second.This
Outward, between described first strip filtration membrane 111a and the second strip filtration membrane 111b, one layer of barrier film is preferably also set up
111e, by described barrier film 111e cavity 111c is divided into former and later two all with the cavity of described lip 111f conducting.Should be every
The thickness of film 111e is advisable below 3 millimeters and edge can be respectively embedded between the first left side and the second left side, first
Between right edge and the second right edge and between the first free end base and the second free end base.Above-mentioned first strip filters
Thin film 111a and the second strip filtration membrane 111b typically can use polyvinylidene difluoride film, polyethylene film, polypropylene thin
Any one in the fine thin film of film, polysulphone film, Polyethersulfone membranes, polypropylene and polyvinyl chloride film；Barrier film 111e can adopt
Use multiple plastic foil.
When manufacturing above-mentioned film bar 111, can first cut out the first strip filtration membrane 111a, the second strip filtration membrane 111b
(use special cutting apparatus can cut out the first strip filtration membrane 111a, Article 2 the most accurately with barrier film 111e
Shape filtration membrane 111b and barrier film 111e), then the first strip filtration membrane 111a, barrier film 111e and the second strip are filtered
Thin film 111b be sequentially overlapped after by between described first left side and the second left side, between the first right edge and the second right edge
And first all thermal weldings between free end base and the second free end base be integrated, thus quickly manufacture membrane bar 111.When
So, between the first left side and the second left side, between the first right edge and the second right edge and the first free end base with
Other connected modes can also be used between second free end base, the most bonding.
Such as Fig. 1, shown in 4, the described free end 111b when membrane module is in the use state being immersed in staying water
Under the holding of staying water in floating state, and film bar 111 with connect end 111a be positioned at the side below free end 111b
Formula is longitudinally disposed, and in order to make film bar 111 in water body to be filtered longitudinally disposed and connect end 111a be positioned under free end 111b
Side, can realize by controlling the buoyancy of film bar 111 itself.Due to film bar 111 the first strip filtration membrane 111a, second
Strip filtration membrane 111b and barrier film 111e all uses frivolous organic film, the therefore lighter in weight of film bar 111, meanwhile,
Film bar 111 has again bigger surface area, therefore, is fully able at film bar 111 when being immersed in water body to be filtered by film bar 111
Its free end 111b is made to float under the effect of natural buoyancy and that self-assembling formation connects that end 111a is positioned at below free end 111b is vertical
To attitude.In order to control the attitude of film bar 111, membrane component 110 can also include being arranged on described film bar 111 free end 111b
Position control parts 112；These position control parts 112 rely on and draw free end from the stress in staying water
111b thus control film bar 111 attitude in staying water.Specifically, described position control parts 112 can rely on self
Buoyancy is pulled up free end 111b and makes film bar 111 in longitudinally disposed in staying water.Use position control parts 112
Do not have the attitude of control strip 111, the degree of freedom to the design of film bar can be increased, position control parts 112 can also be controlled simultaneously
Pull strength to the free end 111b of film bar 111, thus regulate the scope that free end 111b floats, increase and film bar 111 is moved
Controllability.
As shown in Figure 4, in this embodiment, described position control parts 112 include clamp structure 112b and peace
It is contained in the buoyancy aid 112a on this clamp structure 112b.In order to ensure stress balance, position control parts 112 are designed to film bar
111 symmetrical structures.Described clamp structure 112b specifically includes left clamping part, right clamping part and is connected to left folder portion with right
The connecting portion on clamping part top, the upper end of film bar 111 is held between left clamping part and right clamping part；Described buoyancy aid 112a is bar
Shape the width along film bar 111 extend, and this buoyancy aid 112a is fixed on the upper surface of connecting portion, and the side of buoyancy aid 112a is convex
The side of membrane bar 111.In this detailed description of the invention, buoyancy aid 112a specifically uses foamed materials, such as expandable polystyrene
(EPS).Above-mentioned position control parts 112 simple in construction, it is easily installed；Owing to film bar 111 is protruded in the side of buoyancy aid 112a
Side, can prevent from occurring between film bar 111 bonding.
As it is shown in figure 1, the film filter processed for water, including membrane module described in above-mentioned detailed description of the invention and can
Acting on the aerator 300 of membrane module, the aeration opening 310 of described aerator 300 is arranged at the periphery substantially of film bar 111
On along the outside aeration of length direction of film bar 111.Wherein, described flow concentrating part 210 specifically includes and is integrated with aerator 300
Afflux support seat 213, afflux supports in seat 213 and is respectively equipped with the manifold 211 and gas transmission chamber 320 being isolated from each other, and afflux props up
The upper surface of support seat 213 is distributed the film bar interface with manifold 211 conducting and the aeration opening 310 with gas transmission chamber 320 conducting, institute
The connection end 111a stating upper surface and film bar 111 that film bar 111 is installed vertically on this afflux support seat 213 supports with afflux respectively
Film bar interface correspondence on seat 213 connects.Above-mentioned aerator 300 has compact conformation with the Integral design of flow concentrating part 210
Advantage.Afflux supports the upper surface of seat 213 and film bar interface with manifold 211 conducting is distributed and turns on gas transmission chamber 320
Aeration opening 310, aeration opening 310 is generally along the outside aeration of length direction of film bar 111 simultaneously, and therefore aerator 300 is right
The sphere of action width of membrane module, aeration is more abundant.
Embodiment 1
As it is shown in figure 5, the film filter processed for water, including membrane module described in above-mentioned detailed description of the invention and can
Acting on the aerator 300 of membrane module, wherein, it is plate-like that described afflux supports seat 213, and described film bar 111 is with array shape
Formula is distributed in this afflux and supports the upper surface of seat 213；Described film bar 111 specifically supports at this afflux with rectangular array formal distribution
The upper surface of seat 213, in the film bar 111 of rectangular array, each film bar 111 be arranged in parallel, thus is formed flat in filter element 100
The drain outlet of row, the beneficially discharge of dirt.
In the film filter of embodiment 1, film bar 111 length L used is 1000 millimeters, and width W is 16 millimeters, thick
Degree H is 2 millimeters, then the membrane area of every film bar 111 is 2 (W+H) × L=0.036m2.Afflux supports a diameter of of seat 213
1000 millimeters, 15000 piece film bars 111 are altogether distributed on the upper surface that this afflux supports seat 213, then total membrane area is
0.036 × 15000=540m2.Therefore, in this film filter, film bar 111 membrane area under unit loads volume is about 688m2/
m3, hence it is evident that higher than board-like film.
Embodiment 2
As shown in Figure 6, the film filter processed for water, including membrane module described in above-mentioned detailed description of the invention and can
Acting on the aerator 300 of membrane module, wherein, it is plate-like that described afflux supports seat 213, and described film bar 111 is with array shape
Formula is distributed in this afflux and supports the upper surface of seat 213；Described film bar 111 specifically supports at this afflux with annular array formal distribution
The upper surface of seat 213, in the film bar 111 of annular array the side of each film bar 111 all with same with the annular array of film bar 111
Center is that the circle (circle 120 in such as Fig. 6) in the center of circle is tangent, thus forms the drain outlet of annular in filter element 100, has
It is beneficial to the discharge of dirt.
Embodiment 3
As shown in Figure 6, the film filter processed for water, including membrane module described in above-mentioned detailed description of the invention and can
Acting on the aerator 300 of membrane module, wherein, it is tubulose that afflux supports seat 213, and this afflux supports right angle setting on seat 213
There are the many length direction spaced film bars 111 supporting seat 213 along this afflux.Additionally, the film filter of embodiment 3 also wraps
Include the position limiting structure being arranged at the free end 111b range of activity that can limit film bar 111 outside filter element 100.This position limiting structure
Concrete employing is arranged at the peripheral frame outside filter element 100.
Being different from the membrane module in above-mentioned detailed description of the invention and embodiment, the membrane module shown in Fig. 8 includes: filter element
100, its filter element 100 includes that membrane component 110, described membrane component 110 include that the hollow membrane element of only one end open is closed on the whole body
Part body, the outer surface of described membrane component body is membrane filtration face；Afflux unit 200, described afflux unit 200 includes afflux portion
Part 210, described flow concentrating part 210 is provided with the manifold 211 of the open communication with membrane component 110 and connects with manifold 211
Delivery outlet 212；Described membrane component body is the strip film bar 111 of flat cross section, and described film bar 111 has one and connects end
A 111a and free end 111b, wherein, described connection end 111a is placed in and makes the opening of film bar 111 on flow concentrating part 210
111d connects described manifold 211, and described free end 111b is then in the use being immersed in staying water at this membrane module
During state in floating state under the holding of described staying water；Additionally, when this membrane module is in described use state,
Described film bar 111 is longitudinally disposed to connect in the way of end 111a is positioned at above free end 111b.
As shown in Figure 8, the film filter processed for water, including the membrane module shown in Fig. 8 and may act on this membrane module
Aerator 300, the aeration opening 310 of described aerator 300 is arranged at the lower section of film bar 111 and generally along film bar 111
The outside aeration of length direction.Described flow concentrating part 210 specifically includes afflux and supports seat 213, and afflux is provided with collection in supporting seat 213
Stream chamber 211, afflux supports the lower surface of seat 213 and is distributed and the film bar interface of manifold 211 conducting, and described film bar 111 is vertical
The connection end 111a being installed on lower surface and film bar 111 that this afflux supports seat 213 supports the film bar on seat 213 with afflux respectively
Interface correspondence connects.It can be plate-like that afflux supports seat 213, and described film bar 111 is distributed in this afflux in the form of an array and supports seat
The lower surface of 213；Described film bar 111 preferably supports seat 213 with rectangular array form or annular array formal distribution at this afflux
Lower surface, when described film bar 111 with rectangular array formal distribution this afflux support seat 213 lower surface time, rectangular array
Film bar 111 in each film bar 111 be arranged in parallel, when described film bar 111 with annular array formal distribution this afflux support seat 213
Lower surface time, in the film bar 111 of annular array the side of each film bar 111 all with in the same annular array with film bar 111
The heart is that the circle in the center of circle is tangent.
Film filter shown in Fig. 8, due to the free end 111b of film bar 111 under the holding of staying water in floating type
State thus impart the bigger degree of freedom of film bar 111 itself at this free end 111b and this free end 111b place, expose simultaneously
The aeration opening of device of air 300 is arranged at the lower section of film bar 111 and generally along the outside aeration of length direction of film bar 111, therefore,
During filtration, tunicle bar 111 is intercepted the dirt that gets off and will be discharged between film bar 111 easily, especially from film bar 111
Portion discharges, and is prevented effectively from film bar 111 formation dirt crystallizing field.
Film filter shown in Fig. 8, the described freedom when membrane module is in the use state being immersed in staying water
111b is in floating state under the holding of staying water for end, and film bar 111 is positioned on free end 111b to connect end 111a
Side mode longitudinally disposed, and in order to make film bar 111 in water body to be filtered longitudinally disposed and connect end 111a be positioned at free end
Above 111b, can realize by controlling the gravity of film bar 111 itself.In order to control the attitude of film bar 111, membrane component 110
The position control parts 112 being arranged on described film bar 111 free end 111b can also be included；These position control parts 112 depend on
Film bar 111 attitude in staying water is controlled by drawing free end 111b from the stress in staying water.
Specifically, described position control parts 112 can rely on self gravitation to draw downwards free end 111b and make film bar 111 locate waiting
In longitudinally disposed in reason water body.Use position control parts 112 not have the attitude of control strip 111, can increase and film bar is designed
Degree of freedom, simultaneously can also control the position control parts 112 pull strength to the free end 111b of film bar 111, thus regulate
The scope that free end 111b floats, increases the controllability to film bar 111 motion.
In this embodiment, described position control parts 112 include clamp structure 112b and are arranged on this clamping
Balance weight body in structure 112b.In order to ensure stress balance, position control parts 112 are designed to film bar 111 symmetrical
Structure.Described clamp structure 112b specifically includes left clamping part, right clamping part and is connected to left folder portion and right clamping part top
Connecting portion, the upper end of film bar 111 is held between left clamping part and right clamping part；Described balance weight body is strip along film bar 111
Width extend, this balance weight body is fixed on the upper surface of connecting portion, and the side of film bar 111 is protruded in the side of balance weight body.
The plastics that in this detailed description of the invention, balance weight body specifically uses proportion to be more than film bar are made.Above-mentioned position control parts 112 are tied
Structure is simple, be easily installed；The side of film bar 111 is protruded in side due to buoyancy aid 112a, can prevent from occurring between film bar 111 to glue
Connect.
Claims (10)
1. the membrane module processed for water, including:
Filter element (100), described filter element (100) includes that membrane component (110), described membrane component (110) include that the whole body is sealed
Closing the hollow membrane component body of only one end open, the outer surface of described membrane component body is membrane filtration face；
Afflux unit (200), described afflux unit (200) include flow concentrating part (210), described flow concentrating part (210) be provided with
The manifold (211) of the open communication of membrane component (110) and the delivery outlet (212) connected with manifold (211)；
It is characterized in that:
Described membrane component body is strip film bar (111) of flat cross section, and described film bar (111) has one and connects end
(111a) He one free end (111b), wherein
Described connection end (111a) is placed in flow concentrating part (210) above makes the opening (111d) of film bar (111) connect described collection
Stream chamber (211),
Described free end (111b) is then treated described when this membrane module is in the use state being immersed in staying water
Process under the holding of water body in floating state；
Described flow concentrating part (210) is to be vertically installed with many on tubulose and this flow concentrating part (210) along this flow concentrating part (210)
Length direction spaced film bar (111).
2. the membrane module processed for water as claimed in claim 1, it is characterised in that: when this membrane module is in described use shape
During state, described film bar (111) is longitudinally disposed to connect in the way of end (111a) is positioned at free end (111b) lower section.
3. the membrane module processed for water as claimed in claim 1 or 2, it is characterised in that: described membrane component (110) also includes
It is arranged on the position control parts (112) on described film bar (111) free end (111b)；These position control parts (112) rely on
Draw free end (111b) from the stress in staying water thus control film bar (111) appearance in staying water
State.
4. the membrane module processed for water as claimed in claim 3, it is characterised in that: described position control parts (112) depend on
It is pulled up free end (111b) by natural buoyancy and makes film bar (111) in longitudinally disposed in staying water.
5. the membrane module processed for water as claimed in claim 1 or 2, it is characterised in that: described film bar (111) includes relatively
The the first strip filtration membrane (111a) arranged and the second strip filtration membrane (111b), described first strip filtration membrane
(111a) edge is connected limit, bottom by the first left side, the first right edge, the first free end base and first and constitutes, and described the
The edge of two strip filtration membranes (111b) is connected end by the second left side, the second right edge, the second free end base and second
Base constitute, between described first left side and the second left side, between the first right edge and the second right edge and first from
By connecting as one respectively between limit, bottom and the second free end base thus at the first strip filtration membrane (111a) and second
Forming cavity (111c) between strip filtration membrane (111b), the first connection limit, bottom is connected limit, bottom with second and is not connected to each other
Form the lip (111f) communicated with cavity (111c).
6. the membrane module processed for water as claimed in claim 5, it is characterised in that: described film bar (111) includes being arranged at
Barrier film (111e) between first strip filtration membrane (111a) and the second strip filtration membrane (111b), described barrier film (111e)
Cavity (111c) is divided into former and later two cavitys all turned on described lip.
7. the film filter processed for water, including membrane module and the aerator (300) that may act on membrane module, its feature exists
In: described membrane module uses the membrane module in claim 1 to 6 described in any one claim；Described aerator (300)
Aeration opening (310) be arranged at the periphery of film bar (111) and generally along the outside aeration of length direction of film bar (111).
8. the film filter processed for water as claimed in claim 7, it is characterised in that: described membrane module uses claim
Membrane module described in 2；The most described flow concentrating part (210) includes that the afflux being integrated with aerator (300) supports seat (213),
This afflux supports seat (213) and is tubulose and inside is respectively equipped with the manifold (211) and gas transmission chamber (320), afflux being isolated from each other
The upper surface supporting seat (213) is distributed the film bar interface turned on manifold (211) and the aeration turned on gas transmission chamber (320)
Mouth (310), described film bar (111) is installed vertically on this afflux and supports upper surface and the connection end of film bar (111) of seat (213)
(111a) the corresponding connection of the film bar interface on seat (213) is supported respectively with afflux.
9. the film filter processed for water as claimed in claim 8, it is characterised in that: described aeration opening (310) is arranged on
Between adjacent film bar interface.
10. the film filter processed for water as claimed in claim 7, it is characterised in that: also include being arranged at filter element
(100) position limiting structure of free end (111b) range of activity of film bar (111) can be limited outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610765992.6A CN106310952A (en) | 2016-08-30 | 2016-08-30 | Membrane module for water treatment and membrane filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610765992.6A CN106310952A (en) | 2016-08-30 | 2016-08-30 | Membrane module for water treatment and membrane filter |
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