CN108722194A - Sleeve cross-flow filtering membrane component - Google Patents

Sleeve cross-flow filtering membrane component Download PDF

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Publication number
CN108722194A
CN108722194A CN201810569110.8A CN201810569110A CN108722194A CN 108722194 A CN108722194 A CN 108722194A CN 201810569110 A CN201810569110 A CN 201810569110A CN 108722194 A CN108722194 A CN 108722194A
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China
Prior art keywords
filter core
membrane
filter element
flow filtration
cross
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Pending
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CN201810569110.8A
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Chinese (zh)
Inventor
黄彦
王满震
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Nanjing Tech University
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Nanjing Tech University
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Priority to CN201810569110.8A priority Critical patent/CN108722194A/en
Publication of CN108722194A publication Critical patent/CN108722194A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06Tubular membrane modules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention provides a sleeve cross-flow filtration membrane component which comprises a membrane shell, a lower end enclosure, an upper end enclosure, an inner filter element and an outer filter element. A clear liquid outlet d is formed in the side surface of the membrane shell, a stock solution inlet a is formed in the lower end enclosure, and a filtered clear liquid outlet c and a concentrated solution outlet b are formed in the upper end enclosure; the inner filter element is connected with the upper end enclosure through threads, the wide end of the outer filter element is sleeved outside the inner filter element and is connected with the upper end enclosure through threads, and the other end of the outer filter element is connected with the lower end enclosure through threads. During filtration, stock solution enters the membrane cavity from the position a, the inner filter element and the outer filter element perform cross flow filtration simultaneously, clear solution flows out from the positions c and d, and concentrated solution flows out from the position b. The invention adopts the filter element suit design with different pipe diameters, realizes the simultaneous filtration of the inner membrane pipe and the outer membrane pipe, increases the filtration area by times, improves the water yield of clear liquid under the condition of providing the same osmotic pressure, and greatly improves the filtration efficiency of the membrane.

Description

A kind of casing cross-flow filtration membrane module
Technical field
The invention belongs to membrane technology separation fields, are related to a kind of casing cross-flow filtration membrane module.
Background technology
Membrane separation technique is isolated and purified to substance in material system with duct sieving actoion realization, has separation, essence System and other effects, and separative efficiency height, energy-saving and environmental protection, economic value are apparent, easy to operate, investment automation small, easy to implement is controlled System, be widely used in the fields such as water process, petrochemical industry, the energy, smelting, pharmacy, environmental protection at present, and produce tremendous economic and Social benefit.
In membrane separating process, there are physical chemistry for the macromoleculars such as particle, colloidal particle or protein in solution and film Interaction, mechanical deposit effect, can adsorb in film surface or fenestra, deposit, cause membrane aperture to become smaller or block, film surface Concentration polarization and filter cake are formed, membrane flux and strainability is made to decline.To alleviate fouling membrane, filter plant mostly uses cross-flow at present The mode of filtering.Cross-flow filtration is different from dead end, and cross-flow liquid high speed flows through film surface, forms shearing force, take away the deposit of film surface And suspended matter, concentration polarization is reduced, decelerating membrane pollution improves membrane flux.Therefore, cross-flow filter can be in higher solid content Lower continuous operation.
As membrane technology is in the popularization of commercial Application, cross-flow filtration plays increasingly important role, but cross-flow filtration needs Circulating pump is wanted constantly to provide cross-flow liquid, energy consumption is big, therefore it is most important to improve cross-flow filtration efficiency.Usually pass through raising Film surface flow velocity changes the decelerating membrane pollutions such as film property shape, improves membrane flux.Patent of invention CN102223944A discloses a kind of spiral shell The cross-flow filter of winding is revolved, however simply by film surface turbulence effects are changed, to reducing energy consumption effect unobvious, and filter effect Fruit needs to improve.Patent of invention CN103933863A provides a kind of tandem cross-flow filtration membrane module, is handed over by membrane module interface Fork series connection, improves water outlet quality, improves the utilization ratio of pump to a certain extent.The liquid of patent CN203227344U designs Cross-flow filtration membrane module installs non-filtered water conservancy diversion plug in tube chamber, and liquid can be made to be formed by tubular runner tightly The flowing of chimney filter inner wall is pasted, chimney filter filter efficiency is improved to a certain extent, also filter cake has been delayed to be formed.Patent CN102225203A is public A kind of dismantled and assembled cross-flow filtration device is opened, filter one end is arranged in stoste outflow, and purified liquor outlet is located at filter housing appearance Face, and stoste residue outlet is set in raffinate memory block, it solves former raffinate and excludes problem online.Patent mentioned above is all In some aspects improve UF membrane efficiency, but provide low-consumption high-efficiency membrane module, should consider by improve film surface turbulent extent, Increase surface shear stress, considers to improve UF membrane efficiency by increasing membrane filtration area again.
For the metal films such as stainless steel membrane, organic film frequently with tubular module, especially metal film, tubular module dismounting letter It is single, easy to use.Therefore, a kind of efficient tubular cross flow membrane module is extremely important.
Invention content
The purpose of the present invention is exactly to solve the deficiencies in the prior art, provides a kind of casing cross-flow filtration membrane module, is increased with this Big membrane filtration area, improves membrane filtration efficiency, avoids energy waste, component convenient for disassembly and assembly, easy to operate.
Used technical solution is as follows to solve above-mentioned technical problem by the present invention:
A kind of casing cross-flow filtration membrane module, including putamina, low head, upper cover, inner filter core, outer filter core.The film Shell-side face is equipped with purified liquor outlet d, and the low head is equipped with stoste outflow a, the upper cover be equipped with filtering purified liquor outlet c, Concentrated solution outlet b;The inner filter core is connected through a screw thread with the upper cover, and the outer filter core wide mouth part is socketed in institute It is connected through a screw thread on the outside of the inner filter core stated and with the upper cover, the other end is connected with the low head by screw thread It connects.When filtering, stoste enters membrane cavity from a, and the inner filter core and the outer filter core are carried out at the same time cross-flow filtration, and clear liquid is from c It is flowed out with d, concentrate is flowed out from b.
A kind of casing cross-flow filtration membrane module, in upper cover the outlets b be connected to the gap of inner filter core and outer filter core, B is exported to be set to above connection (7).
A kind of casing cross-flow filtration membrane module, connection (6), (9), at (10) to be threadedly coupled, connection (7), (8) Place is clip or flanged joint.
A kind of casing cross-flow filtration membrane module, interior filter membrane, outer filter membrane are metal or organic tubular membrane.
A kind of casing cross-flow filtration membrane module, the gap between inner filter core and outer filter core are 3-45mm.
A kind of casing cross-flow filtration membrane module, the outer surface (4) of inner filter core, the inner surface of outer filter core (3) are light Sliding surface or wavy surface.
Beneficial effects of the present invention:A kind of casing cross-flow filtration membrane module, realize in outer membrane filter simultaneously, filter area at Increase again, under conditions of identical osmotic pressure is provided, improves the water yield of clear liquid, the filter efficiency of film greatly improves;Change Intermembrane space, surface texture increase film surface turbulent extent, decelerating membrane pollution;Using appropriate connection type, component dismounting easy to install.
Description of the drawings
Fig. 1 is a kind of casing cross-flow filtration membrane module structure schematic diagram;
Fig. 2 is that filter core is threadedly coupled schematic diagram;
Fig. 3 is filter core wave film surface schematic diagram;
Fig. 4 is two sets of element kit structural schematic diagrams;
Wherein:1- putaminas;2- upper covers;The outer filter cores of 3-;4- inner filter cores;5- low heads;6- is threadedly coupled;7- clips or method Orchid connection;8- clips or flanged joint;9- is threadedly coupled;10- is threadedly coupled;11- clear liquids region;The clear liquid areas 12-.
Specific implementation mode
With reference to specific embodiment, the present invention will be described.Protection scope of the present invention is not with specific embodiment Limit, but be defined in the claims.
Embodiment 1
As shown in Figure 1, a kind of casing cross-flow filtration membrane module, including putamina, low head, upper cover, inner filter core, outer filter Core.The putamina side is equipped with purified liquor outlet d, and the low head is equipped with stoste outflow a, and the upper cover is equipped with filtering Purified liquor outlet c, concentrated solution outlet b;The inner filter core is connected through a screw thread with the upper cover, the outer filter core wide-mouth End cap is connected on the outside of the inner filter core and is connected through a screw thread with the upper cover, and the other end is logical with the low head Cross threaded connection.When filtering, stoste enters membrane cavity from a, and the inner filter core and the outer filter core are carried out at the same time cross-flow filtration, Clear liquid is flowed out from c and d, and concentrate is flowed out from b.The outlets b are connected to the gap of inner filter core and outer filter core in upper cover, and outlet b is set Above connection (7).
It is to be threadedly coupled at component 6,9,10 for the ease of installation, 7,8 be clamp connection.Inner filter core is tubular type stainless steel Film, outer diameter 80mm, length 1000mm, outer filter core are tubular type stainless steel membrane, internal diameter 100mm, length 1000mm, inside and outside filter Spacing between core is 10mm.
When installation, inner filter core is threadedly attached to upper cover, and outer filter core wide mouth part is socketed in inner filter core exterior measuring and passes through It is threadedly coupled to upper cover, putamina is socketed on the outside of outer filter core and is connect with upper cover by clip, outer filter core lower end and lower envelope Head is connected through a screw thread, and last low head with putamina by clamp connection, tear open by simple by the above connection type realization device Dress.
As shown in Figure 1, when the present invention works, stoste is delivered to membrane module by fore pump through a, and cross-flow is passed through membrane cavity, oozed Thoroughly under pressure driving, through interior membrane filtration, clear liquid enters region (11) and is flowed out by c, through outer membrane filtration, after clear liquid enters region (12) It is flowed out through d, dope is flowed out by b after cross-flow filtration.When backwash, backwash liquor is conveyed into membrane module by pumping through b, and membrane cavity is passed through in cross-flow, After cleaning, backwash liquor is flowed out by a.
Embodiment 2
In this implementation, part same as Example 1 is not just repeating, the difference is that:Inner filter core uses tubular type Stainless steel membrane, outer diameter 100mm, length 1200mm, outer filter core are using tubular type stainless steel membrane, internal diameter 130mm, length 1200mm, inside and outside filter core film surface spacing is 15mm.
Embodiment 3
In this implementation, just do not repeated with embodiment 1,2 identical parts, the difference is that:Inner filter core is using pipe Formula polytetrafluoroethylene film, outer diameter 100mm, length 1100mm, outer filter core use tubular type polytetrafluoroethylene film, internal diameter 140mm long Degree is 1100mm, and inside and outside filter core film surface spacing is 20mm.
Embodiment 4
In this implementation, just do not repeated with embodiment 1,2,3 identical parts, the difference is that:Inner filter core uses Tubular type stainless steel membrane, outer diameter 90mm, length 1300mm, outer filter core are using tubular type stainless steel membrane, internal diameter 140mm, length 1300mm, inside and outside filter core film surface spacing is 25mm, as shown in figure 3, inner filter core outer surface, outer filter membrane inner surface are wavy surface, This can increase the turbulent extent of cross-flow liquid, decelerating membrane pollution.
Embodiment 5
In this implementation, just do not repeated with embodiment 1,2,3,4 identical parts, the difference is that:Using two groups The pattern of filter core parallel operation, as shown in figure 4, the public a set of shell of two groups of filter cores, greatly reduces manufacturing cost, improved Filter efficiency.

Claims (6)

1. a kind of casing cross-flow filtration membrane module, including putamina (1), low head (5), upper cover (2), inner filter core (4), outer filter core (3).It is characterized in that:Described putamina (1) side is equipped with purified liquor outlet d, and the low head (5) is equipped with stoste outflow a, institute The upper cover (2) stated is equipped with filtering purified liquor outlet c, concentrated solution outlet b;The inner filter core (4) is logical with the upper cover (2) Cross screw thread (9) connection, described outer filter core (3) wide mouth part be socketed on the outside of the inner filter core (4) and with the upper cover (2) it is connected by screw thread (6), the other end is connect with the low head (5) by screw thread (10).When filtering, stoste from a into Enter membrane cavity, the inner filter core (4) and the outer filter core (3) are carried out at the same time cross-flow filtration, and clear liquid is flowed out from c and d, concentrate It is flowed out from b.
2. a kind of casing cross-flow filtration membrane module according to claim 1, it is characterised in that:In upper cover (2) b outlet with Inner filter core (4) is connected to the gap of outer filter core (3), and outlet b is set to above connection (7).
3. casing cross-flow filtration membrane module according to claim 1, it is characterised in that:It connects (6), (9), at (10) be spiral shell Line connects, and is clip or flanged joint at connection (7), (8).
4. a kind of casing cross-flow filtration membrane module according to claim 1, it is characterised in that:Interior filter membrane (4), outer filter membrane (3) it is metal or organic tubular membrane.
5. a kind of casing cross-flow filtration membrane module according to claim 1, it is characterised in that:Inner filter core (4) and outer filter core (3) gap between is 3-15mm.
6. a kind of casing cross-flow filtration membrane module according to claim 1, it is characterised in that:The outer surface of inner filter core (4), The inner surface of outer filter core (3) is shiny surface or wavy surface.
CN201810569110.8A 2018-06-01 2018-06-01 Sleeve cross-flow filtering membrane component Pending CN108722194A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110508150A (en) * 2019-09-27 2019-11-29 李俊宏 There is one kind filtration efficiency tubular membrane to filter sealing

Citations (5)

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Publication number Priority date Publication date Assignee Title
EP1652565A1 (en) * 2004-10-27 2006-05-03 Martin Eurlings Cross flow filter device with concentric filter elements
CN201643834U (en) * 2009-12-25 2010-11-24 成都易态科技有限公司 Filter element assembly for cross-flow filter
CN201719900U (en) * 2010-07-21 2011-01-26 成都易态科技有限公司 Cross-flow filtration filter component
CN105642117A (en) * 2016-01-29 2016-06-08 上海鸣泰环保工程有限公司 Cross-flow liquid film filtering technique and cross-flow liquid filter operating method
JP2017006903A (en) * 2016-03-02 2017-01-12 東洋スクリーン工業株式会社 Filtering device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1652565A1 (en) * 2004-10-27 2006-05-03 Martin Eurlings Cross flow filter device with concentric filter elements
CN201643834U (en) * 2009-12-25 2010-11-24 成都易态科技有限公司 Filter element assembly for cross-flow filter
CN201719900U (en) * 2010-07-21 2011-01-26 成都易态科技有限公司 Cross-flow filtration filter component
CN105642117A (en) * 2016-01-29 2016-06-08 上海鸣泰环保工程有限公司 Cross-flow liquid film filtering technique and cross-flow liquid filter operating method
JP2017006903A (en) * 2016-03-02 2017-01-12 東洋スクリーン工業株式会社 Filtering device

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蔺爱国等: "《新型功能膜技术及其应用》", 30 November 2013, 中国石油大学出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110508150A (en) * 2019-09-27 2019-11-29 李俊宏 There is one kind filtration efficiency tubular membrane to filter sealing

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