CN213375988U - Flat membrane component for filtration - Google Patents

Abstract

The utility model discloses a filter and use dull and stereotyped membrane module, including the pipe and be located the intraductal filter core of pipe, the filter core is piled up in proper order on the thickness direction of membrane bag by a plurality of membrane bags and forms, the membrane bag is including two dull and stereotyped membranes of mutual stack, the sealing connection all around of two dull and stereotyped membranes forms sealed limit, the sealed edge at membrane bag both ends is equipped with the raw water inlet respectively, through sealed glue connection between the adjacent membrane bag at filter core both ends, the inner wall sealing connection of filter core both ends and pipe, form between the middle part of filter core and the inner wall of pipe and produce the water cavity, be equipped with on the pipe and produce the mouth of a river, the both ends of pipe are equipped with sealed lid, form the raw water cavity between the. The flat membrane module of the utility model has the back washing function like a hollow fiber membrane. Can be applied to the filtration of water bodies and aqueous solutions. Meanwhile, the method has the advantages of large flux, low pressure difference, stable effluent quality, continuous filament breakage, long membrane service life and the like.

Description

Flat membrane component for filtration

Technical Field

The utility model belongs to the technical field of filter, concretely relates to dull and stereotyped membrane module is used in filtration.

Background

Currently there are three main membrane structure forms in the field of membrane filtration and separation: hollow fiber, flat and tubular modes. The hollow fiber membrane has the main advantages of back flushing, the tubular membrane has the main advantages of high suspended matter resistance, and the flat membrane has the main advantages of large flux, low pressure difference and few membrane pore defects. Flat sheet membranes are put into practical use as filtration units or modules in various forms due to the above-mentioned advantages: the membrane filter element comprises a dead-end filtration membrane filter element and is applied to liquid clarification and sterilization filtration; the cross-flow type flat plate ultrafilter is applied to material separation and concentration; the spiral-wound membrane module is applied to filtering, separating and concentrating water and materials.

However, the above membrane units or modules have some disadvantages, for example, the membrane filter core for dead-end filtration is generally disposable and high in cost; the roll-type membrane generally cannot realize back washing, and the advantage of large flux cannot be exerted due to the limitation of the central pipe; the cross-flow flat plate ultrafilter has high initial investment and is not suitable for a large-flow water treatment process.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a dull and stereotyped membrane module is used in filtration, including the pipe and the filter core that is located the pipe, the filter core is piled up the formation in proper order on the thickness direction of membrane bag by a plurality of membrane bags, the membrane bag is including two mutual superimposed dull and stereotyped membranes, the sealing connection all around of two dull and stereotyped membranes forms sealed limit, the sealed edge at membrane bag both ends is equipped with the inside raw water inlet of intercommunication membrane bag respectively, through sealed glue connection between the adjacent membrane bag at filter core both ends, the inner wall sealing connection of sealed glue and pipe is passed through at the filter core both ends, form the product water cavity between the middle part of filter core and the inner wall of pipe, be equipped with the product water mouth that the water cavity was produced in the intercommunication on the pipe, the both ends of pipe are equipped with sealed lid, form the former water cavity between the.

Preferably, the flat membrane is square.

Preferably, the width of the sealing edge is 1-10 mm.

Preferably, a raw water diversion net is arranged between the two flat-plate membranes in the membrane bag.

Preferably, the thickness of the raw water diversion net is 0.5-2.5 mm

Preferably, a water production flow guide net is arranged between adjacent membrane bags in the filter element.

Preferably, the thickness of the water-producing diversion net is 0.1-0.5 mm.

As the optimization of the technical scheme, the two sides of the filter element are respectively provided with the clamping plates which are parallel to the membrane bag, and the two ends of the clamping plates are respectively bonded with the two ends of the filter element through the sealant.

Preferably, a water-producing flow guide net is arranged between the clamping plate and the filter element.

Preferably, the two ends of the produced water diversion net are respectively sealed and adhered with the two ends of the membrane bag through a sealant.

The utility model has the advantages that: the flat membrane module of the utility model has the back washing function like a hollow fiber membrane. Can be applied to the fields of water body and aqueous solution filtration, such as RO membrane protection and the like. Meanwhile, the method has the advantages of large flux, low pressure difference, stable effluent quality, continuous filament breakage, long membrane service life and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic cross-sectional structure of the present invention;

FIG. 3 is a schematic view of a cartridge;

FIG. 4 is a schematic cross-sectional structure of a film bag;

FIG. 5 is a schematic cross-sectional structure of a film bag;

fig. 6 is a schematic view of the arrangement between adjacent membrane pockets in a filter cartridge.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-6, a flat membrane module for filtration comprises a circular tube 1 and a filter element located in the circular tube 1. The filter core is piled up in proper order by a plurality of membrane bags 2 in the thickness direction of membrane bag 2 and forms, and membrane bag 2 is including two dull and stereotyped membrane 3 that superpose each other. The flat membrane 3 adopts a PVDF microfiltration membrane with the filtration precision of 0.1 micron. The peripheries of the two flat membranes 3 are welded by a thermal welding mode to form sealing edges 4. The film bag 2 has a length of 1 m and a width of 5.5 cm. Be equipped with the inside raw water inlet 5 of intercommunication membrane bag 2 on the sealed limit 4 at 2 both ends of membrane bag respectively, connect through sealed glue 6 between the adjacent membrane bag 2 at filter core both ends, the inner wall sealing connection of sealed glue 6 and pipe 1 is passed through at the filter core both ends, form between the middle part of filter core and the inner wall of pipe 1 and produce water chamber 7, be equipped with the water production mouth 8 that the water chamber 7 was produced in the intercommunication on pipe 1, the both ends of pipe 1 are equipped with sealed lid 9, form former water chamber 10 between the tip of sealed lid 9 and filter core respectively, be equipped with the water inlet 11 of the corresponding former water chamber 10 of intercommunication on the sealed lid 9. Raw water enters the raw water cavity 10 from the water inlet 11, then enters each membrane bag 2 from the raw water inlet 5, is filtered out from the flat membrane 3 at the two sides of the membrane bag 2 and then enters the water production cavity 7, and finally flows out from the water production port 8 to finish raw water filtration. Further, the flat membrane 3 is square. Further, the width of the sealing edge 4 is 5 mm. Furthermore, a raw water diversion net 12 is arranged between the two flat-plate membranes 3 in the membrane bag 2. The raw water guide net 12 plays a supporting role in the membrane bag 2, so that raw water can smoothly enter the membrane bag 2, and the filtration efficiency of the membrane bag 2 is ensured. The raw water diversion net 12 is a PP-made water production diversion net with the thickness of 36 mil. Furthermore, a water production flow guide net 13 is arranged between the adjacent membrane bags 2 in the filter element. The produced water diversion net 13 provides support between the adjacent membrane bags 2 and ensures that each flat membrane 3 can play a role in filtration. The thickness of the water production diversion net 13 is 0.25 mm. Furthermore, the filter element both sides are equipped with splint 14 respectively, and splint 14 adopts the PVC hardboard. The clamping plate 14 is parallel to the membrane bag 2, and two ends of the clamping plate 14 are respectively bonded with two ends of the filter element through the sealant 6. The splint 14 makes the filter core can make things convenient for the installation of filter core, loses the fixed action of splint 14, and the filter core can only rely on the structural strength that provides of raw water diversion net 12 and product water diversion net 13 in the installation. Because the raw water diversion net 12 and the produced water diversion net 13 are both thin, the strength is not high, and the stress is easy to break. The filter cartridge can be effectively protected after the clamping plate 14 is used. Furthermore, a water production flow guide net 13 is respectively arranged between the clamping plate 14 and the filter element, so that the clamping plate 14 cannot influence the water production of the membrane bag 2 at the outermost side. Furthermore, two ends of the produced water diversion net 13 are respectively sealed and bonded with two ends of the membrane bag through the sealant 6.

In the actual production process, the raw water inlet 5 is not reserved on the film bag 2 in advance, but the sealing edge 4 is formed by thermally welding the periphery of the film bag 2. After the filter element is formed by assembling the sealant 6, the two ends of the filter element are cut, the sealing edges 4 at the two ends of the filter element are cut off, and thus, the raw water inlet 5 communicated with the inside of the bag body can be formed at the two ends of each membrane bag 2. The advantage of operation like this can avoid assembling the filter core in-process sealing glue to glue raw water inlet 5, improves filter core production efficiency. And packaging and cutting to obtain a filter element, and finally assembling the circular tube 1 and the sealing cover 9 to obtain the flat membrane component for filtering with the effective area of 4 square meters. The flat membrane 3 is changed into a PVDF flat membrane with the aperture of 0.03 micron, the raw water diversion net 12 also adopts a PP produced water diversion net with the thickness of 36mil, and finally the membrane bag 2 with the length of 1 meter and the width of 13.5 cm is formed. The flat plate membrane module for filtration with an effective treatment area of 20 square meters can be obtained by using a PVC hard plate with the length of 1 meter, the width of 13.5 centimeters and the thickness of 1 centimeter as the clamping plate 14.

It is worth mentioning that the technical features such as the flat membrane, the PVC hard board that the patent application relates to should be regarded as prior art, and the specific structure, the theory of operation and the control mode that may involve, the space arrangement mode of these technical features adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model patent is in, the utility model patent does not do further specifically expand the detailed description.

Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logic analysis, reasoning or limited experimentation will fall within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a filter and use dull and stereotyped membrane module, a serial communication port, including the pipe with be located the intraductal filter core of pipe, the filter core is piled up in proper order on the thickness direction of membrane bag by a plurality of membrane bags and forms, the membrane bag is including two dull and stereotyped membranes of mutual stack, the sealing connection all around of two dull and stereotyped membranes forms sealed limit, the sealed edge at membrane bag both ends is equipped with the inside raw water inlet of intercommunication membrane bag respectively, through sealed glue connection between the adjacent membrane bag at filter core both ends, the inner wall sealing connection of sealed glue and pipe is passed through at filter core both ends, form the product water chamber between the middle part of filter core and the inner wall of pipe, be equipped with the product water mouth that the intercommunication produced the water chamber on the pipe, the both ends of pipe are equipped with sealed lid, form the former water chamber between the.

2. A flat sheet membrane module for filtration according to claim 1, wherein the flat sheet membrane has a square shape.

3. A flat sheet membrane module for filtration according to claim 1, wherein the width of the sealing edge is 1 to 10 mm.

4. A flat sheet membrane module for filtration according to claim 1, wherein a raw water guide net is provided between two flat sheet membranes in the membrane bag.

5. The flat membrane module for filtration according to claim 4, wherein the thickness of the raw water flow guide net is between 0.5 and 2.5 mm.

6. A flat sheet membrane module for filtration according to claim 1 wherein a product water diversion net is provided between adjacent membrane bags in said filter element.

7. The flat sheet membrane module for filtration according to claim 6, wherein the water generating flow guide net has a thickness of 0.1 to 0.5 mm.

8. The flat sheet membrane module for filtration according to claim 1, wherein the filter element is provided at both sides thereof with clamping plates, respectively, the clamping plates being parallel to the membrane bag, and both ends of the clamping plates being bonded to both ends of the filter element, respectively, by a sealant.

9. The flat sheet membrane module for filtration according to claim 8, wherein a product water guide net is provided between the clamping plate and the filter element.

10. The flat membrane module for filtration according to claim 9, wherein both ends of the produced water flow guide net are hermetically bonded to both ends of the membrane bag by a sealant, respectively.

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