CN217756966U

CN217756966U - Ultrafiltration membrane filter element and filter

Info

Publication number: CN217756966U
Application number: CN202220910593.5U
Authority: CN
Inventors: 刘莹
Original assignee: Wuhan City Vocational College
Current assignee: Wuhan City Vocational College
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-11-08
Anticipated expiration: 2032-04-15

Abstract

The utility model provides an ultrafiltration membrane filter element and a filter, wherein the ultrafiltration membrane filter element comprises a filter element shell, ultrafiltration membrane filaments and a sealing head, and the sealing head bends and aligns two ends of the ultrafiltration membrane filaments and then seals and fixes the two ends on the filter element shell; the filter includes shell, end cover and the milipore filter core, be equipped with raw water import and drain on the shell, be equipped with the water purification mouth on the end cover, form former water cavity between milipore filter core and the shell, form the water purification cavity between milipore filter core and the end cover. The beneficial effects of the utility model reside in that: the filter element membrane wire only needs one end for encapsulation, the encapsulation process and time of the membrane wire are reduced, and after the filter element membrane wire is assembled with the shell and the end cover, the filter element can be rapidly installed and disassembled, and the filter element is more convenient to clean and replace.

Description

Ultrafiltration membrane filter element and filter

Technical Field

The utility model relates to an milipore filter technical field particularly, relates to an milipore filter core and filter.

Background

With the development of water treatment technology, membrane filtration products are more and more accepted by people, and the membrane filtration technology is widely applied to life and production.

The ultrafiltration membrane is one of the most widely used membrane filtration technologies, and can be divided into an internal pressure membrane and an external pressure membrane in principle, and the filter can be divided into a column type, a curtain type and a plate type in structure.

Generally, a column type ultrafiltration membrane filter comprises a housing, an end cover and hollow fiber ultrafiltration membrane filaments, and in the industry, as shown in fig. 1, two ends of each hollow fiber ultrafiltration membrane filament are respectively fixed on two ends in a sealing manner by resin glue, wherein one end needs to be sealed and cured before the other end (a-B) is sealed, and the two ends are respectively sealed by the resin glue to form a filter element.

In addition, when the filter element with two ends respectively sealed by glue is assembled into the filter, the two ends of the filter need to be respectively sealed again, the sealing assembly difficulty is high, and the filter element is inconvenient to replace and clean.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is how to simplify the sealing process of ultrafiltration membrane filter core, make things convenient for the change and the washing of filter core.

In order to solve the problems, the utility model provides an ultrafiltration membrane filter element, which comprises an ultrafiltration membrane wire, a filter element shell and a sealing head,

the two ends of the ultrafiltration membrane wire are bent and aligned and then are hermetically fixed in the same sealing head, the sealing head is suitable for being fixed in the filter element shell, and the ends of the ultrafiltration membrane wire are flush with the upper end faces of the filter element shell and the sealing head.

Among this technical scheme, when milipore filter silk and filter element shell are sealed fixed, merge into one end with the crooked back both ends of milipore filter silk, sealed fixed back, the both ends of membrane silk are fixed in same sealed head, can accomplish the preparation of an milipore filter core through a sealed operation, and milipore filter silk end and filter element shell and sealed head terminal surface parallel and level for the milipore filter silk pore leaks in sealed head outward, guarantees the filterable play water of milipore filter core.

Furthermore, the outer circumference of the filter element shell is provided with at least two sealing grooves, and elastic sealing rings are fixed in the sealing grooves.

Further, the radius of the area where the ultrafiltration membrane filaments are fixed on the sealing head is smaller than the inner radius of the filter element shell.

In the technical scheme, when the ultrafiltration membrane wire is sealed and fixed, the fixed area of the membrane wire is smaller than the inner wall of the filter element shell, and an avoidance area is arranged between the fixed area and the inner wall of the filter element shell, so that the ultrafiltration membrane wire is prevented from being scratched by other assembling parts when an ultrafiltration membrane filter element is installed.

Furthermore, the sealing head is made of epoxy resin glue.

The utility model also provides a filter, including the aforesaid ultrafiltration membrane filter core.

Further, still include shell and end cover, the milipore filter core install in the shell, the shell with form former water cavity between the milipore filter core, the end cover with form the water purification chamber between the milipore filter core.

Further, be equipped with first limit structure on the inner wall of shell, first limit structure be suitable for with the filter core shell is close to the one end butt of milipore filter silk, be equipped with raw water import and drain on the outer wall of shell, the raw water import set up in being close to one side of milipore filter core installing port, the drain sets up in keeping away from the one end of milipore filter core installing port.

Among this technical scheme, the mounted position of first limit structure restriction milipore filter on the shell inner wall for the installation of milipore filter is more stable, keeps away from filter core installing port one side on the shell and is equipped with the drain, makes the blowdown more thorough during filter core filter backwashing.

Furthermore, be equipped with second limit structure on the inner wall of end cover, second limit structure be suitable for with the filter element shell is kept away from the one end butt of milipore filter silk, be equipped with the water purification mouth on the outer wall of end cover, the water purification mouth set up in keeping away from the one end of milipore filter core installing port.

In this technical scheme, second limit structure on the end cover inner wall and milipore filter core shell looks butt to the mounted position of restriction end cover assembles fixedly together end cover, shell and milipore filter core.

Furthermore, the elastic sealing ring on the ultrafiltration membrane filter element, which is close to one side of the ultrafiltration membrane wire, is in interference fit with the inner wall of the shell to form sealing, and the elastic sealing ring on the ultrafiltration membrane filter element, which is far away from one side of the ultrafiltration membrane wire, is in interference fit with the inner wall of the end cover to form sealing.

In the technical scheme, the sealing ring on the ultrafiltration membrane filter element is in interference fit with the end cover and the shell respectively, so that a watertight raw water cavity is formed between the ultrafiltration membrane filter element and the shell, and the ultrafiltration membrane filter element and the end cover form a watertight purified water cavity to ensure the filtered water quality of the filter.

Furtherly, the opening side of shell is equipped with first fast-assembling piece, the opening side of end cover is equipped with the second fast-assembling piece, first fast-assembling piece with the second fast-assembling piece carries out fastening connection through the clamp.

Among this technical scheme, shell and end cover opening side are equipped with fast-assembling piece structure, and after the filter core installation, two fast-assembling piece laminatings die the installation that can accomplish the filter through the clamp card.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and are not intended to limit the application.

In the drawings:

FIG. 1 is a schematic diagram of the overall structure of an ultrafiltration membrane cartridge and filter provided in the prior art;

fig. 2 is a schematic front view of an ultrafiltration membrane cartridge according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a sealed front view of a single ultrafiltration membrane filament of the ultrafiltration membrane cartridge of FIG. 2;

FIG. 4 is an enlarged partial view of FIG. 2;

FIG. 5 is a schematic top view of the ultrafiltration membrane cartridge of FIG. 2;

fig. 6 is a schematic view of an overall structure of a filter according to an embodiment of the present invention;

fig. 7 is a front view of a filter according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a filter according to an embodiment of the present invention;

fig. 9 is a partially enlarged structural view of a portion B in fig. 8.

In the figure: 1-a housing; 2-end cap; 3, clamping a hoop; 4-ultrafiltration membrane cartridge; 5-a water purifying cavity; 6-raw water cavity; 11-raw water inlet; 12-a sewage draining outlet; 13-a first limit structure; 14-a first fast-mounting chip; 21-a water purifying port; 22-a second limit structure; 23-a second fast-mounting chip; 41-ultrafiltration membrane filaments; 42-a filter element shell; 43-a sealing head; 44-elastic sealing ring; 45-sealing groove; 46-avoidance zone.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Also, it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; 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.

In the description herein, references to the description of the terms "an example," "one example," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the example or implementation is included in at least one example or implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

Referring to fig. 1, the membrane wire is similar to a flexible pipe, and a common filter element is formed by respectively sealing two ends of the membrane wire, wherein after one end of the membrane wire is sealed, the other end (A-B) can be sealed only after solidification, so that the filter element is manufactured and is convenient to replace at a later stage. By the manufacturing process, when the filter element with two sealed ends is assembled into the filter, two ends of the filter element need to be assembled again, the process is complex, and the assembly difficulty is high.

In order to solve the above technical problem, referring to fig. 2-5, an embodiment of the present invention provides an ultrafiltration membrane filter element, including an ultrafiltration membrane filament 41, a filter element shell 42 and a sealing head 43, two ends of the ultrafiltration membrane filament 41 are fixed to the same sealing head 43 in a sealing manner, and are fixed in the filter element shell 42 in a sealing manner, and two ends of the ultrafiltration membrane filament 41 are bent and aligned to be flush with the end surface of the filter element shell 42 and the end surface of the sealing head 43.

Under the usual circumstances, the filter core usually encapsulates ultrafiltration membrane silk 41 respectively at the both ends of filter core shell 42, and in column type ultrafiltration membrane filter, its filter core both ends need seal the glue operation respectively, and when the filter core was installed in the filter shell, need both ends to seal respectively, could guarantee that former water cavity and water purification chamber are watertight respectively and not to penetrate, and the installation of ultrafiltration membrane filter core is difficult and inconvenient.

In this embodiment, the two ends of the ultrafiltration membrane filament 41 are aligned by bending and then are hermetically fixed on the same sealing head 43, and are hermetically fixed in the filter element shell 42, the two ends of the ultrafiltration membrane filament 41 are sealed on the same sealing head 43, that is, the other end does not need to be sealed and fixed, the sealing structure of the ultrafiltration membrane filter element 4 is changed to the same sealing head 43, and when the filter is installed, only one end of the ultrafiltration membrane filter element needs to be sealed and fixed, so that the installation of the filter element can be completed.

In an optional embodiment of the present invention, at least two sealing grooves 45 are formed on the filter element housing 42, and an elastic sealing ring 44 is disposed in the sealing groove 45.

Referring to fig. 4 and 5, in an alternative embodiment of the present invention, the radius of the region where the ultrafiltration membrane filaments 41 are fixed to the sealing head 43 is smaller than the inner radius of the filter element shell 42, and an avoidance region 46 is provided between the ultrafiltration membrane filaments 41 and the inner wall of the filter element shell 42.

In this embodiment, the fixing area of the ultrafiltration membrane wire 41 is substantially a circle, and the radius of the fixing area is smaller than the inner radius of the filter element shell 42, so that an avoiding area 46 exists between the ultrafiltration membrane wire 41 and the inner wall of the filter element shell 42, and when the ultrafiltration membrane filter element 4 is installed, the avoiding area 46 can ensure that the ultrafiltration membrane wire 41 is not damaged in the installation process. In related embodiments, the shape of the mounting region of the ultrafiltration membrane filaments 41 may be other forms, and the mounting region is set according to the shape of the cartridge housing 42.

In an alternative embodiment of the present invention, the sealing head 43 is an epoxy glue.

In this embodiment, the sealing head 43 is formed by sealing and curing epoxy resin, and can tightly fix the ultrafiltration membrane filaments 41 on the filter element shell 42. In related embodiments, other sealing materials such as polyurethane glue may also be used.

Referring to fig. 6-9, a filter including the ultrafiltration membrane cartridge is also provided in an embodiment of the present invention.

Referring to fig. 6 and 8, in an alternative embodiment of the present invention, the filter further includes a housing 1 and an end cap 2, the ultrafiltration membrane cartridge 4 is installed in the housing 1, a raw water chamber 6 is formed between the housing 1 and the ultrafiltration membrane cartridge 4, and a purified water chamber 5 is formed between the end cap 2 and the ultrafiltration membrane cartridge 4.

Referring to fig. 8-9, in the present embodiment, after the ultrafiltration membrane filter element 4 is installed, the filter is divided into the raw water chamber 6 and the purified water chamber 5, the cavity between the ultrafiltration membrane filaments 41 and the housing 1 is the raw water chamber 6, and one side of the flat end surface of the sealing head 43 is the purified water chamber 5. Raw water enters the raw water cavity 6, is filtered by the ultrafiltration membrane filaments 41 and then enters the water purification cavity 5, and water purification is completed.

Referring to fig. 8 and 9, in an optional embodiment of the present novel usage, a first limiting structure 13 is disposed on an inner wall of the housing 1, the first limiting structure 13 is adapted to abut against one end of the filter element housing 42 close to the ultrafiltration membrane filaments 41, a raw water inlet 11 and a drain outlet 12 are disposed on an outer wall of the housing 1, the raw water inlet 11 is disposed on one side close to the installation opening of the ultrafiltration membrane filter element 4, and the drain outlet 12 is disposed on one end far away from the installation opening of the ultrafiltration membrane filter element 4.

Referring to fig. 8 and 9, in the present embodiment, a first limiting structure 13 is disposed on an inner wall of the filter housing 1, and contacts and abuts against a filter element shell 42 of the ultrafiltration membrane filter element 4, so as to limit the position of the ultrafiltration membrane filter element 4 when the filter housing 1 is installed. The shell 1 is provided with a raw water inlet 11 and a drain outlet 12, and the drain outlet 12 is arranged at the bottom of the shell 1, so that sewage can be discharged more smoothly and thoroughly when the ultrafiltration membrane filter element 4 is washed.

Referring to fig. 8 and 9, in an optional embodiment of the present invention, a second limiting structure 22 is disposed on an inner wall of the end cover 2, the second limiting structure 22 is adapted to contact with an end of the filter element shell 42 away from the ultrafiltration membrane wire 41, a water purifying opening 21 is disposed on an outer wall of the end cover 2, and the water purifying opening 21 is disposed at an end away from a mounting opening of the ultrafiltration membrane filter element 4.

In this embodiment, be equipped with second limit structure 22 on the inner wall of filter end cover 2, contact with the filter core shell 42 of milipore filter core 4, realize the spacing when installing in milipore filter core 4 to end cover 2. The end cover 2 is provided with the water purifying port 21, the water purifying port 21 is arranged at the top of the end cover 2, so that air in the filter can be conveniently discharged when water is filtered, the water purifying cavity 5 is filled with purified water, the bacterial growth is reduced, and the filter is more thorough in disinfection and sterilization.

Referring to fig. 9, in an optional embodiment of the present invention, the elastic sealing ring 44 on the ultrafiltration membrane filter element 4 near the ultrafiltration membrane filaments 41 is in interference fit with the inner wall of the housing 1 to form a seal, and the elastic sealing ring 44 on the ultrafiltration membrane filter element 4 far away from the ultrafiltration membrane filaments 41 is in interference fit with the inner wall of the end cap 2 to form a seal.

In this embodiment, the elastic sealing ring 44 of the ultrafiltration membrane filter element 4 forms interference fit with the inner wall of the end cover 2 and the inner wall of the housing 1 respectively, and after the elastic sealing ring 44 is compressed, the elastic sealing ring and the inner wall of the housing 1 and the inner wall of the end cover 2 form a shaft sealing structure, so that the end cover 2, the ultrafiltration membrane filter element 4 and the housing 1 are respectively sealed to form two closed chambers, namely a purified water chamber 5 and a raw water chamber 6, and the joint of the end cover 2 and the housing 1, the purified water chamber 5 and the raw water chamber 6 are ensured not to leak.

Referring to fig. 9, in an alternative embodiment of the present invention, a first quick mounting plate 14 is disposed on the open side of the housing 1, a second quick mounting plate 23 is disposed on the open side of the end cap 2, and the first quick mounting plate 14 and the second quick mounting plate 23 are fastened by a clamp 3.

From this, the opening one side of shell 1 is equipped with first fast-assembling piece 14, and the opening side of end cover 2 is equipped with second fast-assembling piece 23, and first fast-assembling piece 14 and the phase-match of second fast-assembling piece 23 are connected fixedly with two fast-assembling pieces through clamp 3 that is suitable for with the fast-assembling piece, guarantee end cover 2 and shell 1's position relatively fixed, can accomplish the installation of filter. In related embodiments, the quick-mounting structure may be a flange connection structure.

Compared with the related art, the ultrafiltration membrane filter element and the filter provided by the invention have the advantages that the sealing structure of the ultrafiltration membrane filter element 4 is simpler, and the filter can be sealed and installed only by sealing one end. It carries out interference fit respectively with twice elastic seal 44 on the filter core through shell 1 and end cover 2, realizes axial seal, and the sealing of shell 1 and end cover 2 junction, water purification chamber 5 and former water cavity 6 can be accomplished in once-through assembly.

Simultaneously, shell 1 and end cover 2 adopt fast-assembling piece structure, connect fixedly through clamp 3, ensure that the relative position of shell 1 and end cover 2 does not change, then filter seal structure just can not destroyed, and the installation of its filter is more simple and convenient, and the dismouting and the washing of filter core are more swift.

Although the present invention is disclosed above, the present invention is not limited thereto. The present invention is not limited to the above embodiments, but may be modified in various ways without departing from the scope of the present invention.

Claims

1. An ultrafiltration membrane filter element, characterized in that: comprises an ultrafiltration membrane wire (41), a filter element shell (42) and a sealing head (43),

the two ends of the ultrafiltration membrane wire (41) are bent, aligned and then sealed and fixed in the same sealing head (43), the sealing head (43) is suitable for being fixed in the filter element shell (42), and the ends of the ultrafiltration membrane wire (41) are flush with the upper end faces of the filter element shell (42) and the sealing head (43).

2. The ultrafiltration membrane filter element according to claim 1, characterized in that the outer circumference of the filter element shell (42) is provided with at least two seal grooves (45), and an elastic sealing ring (44) is fixed in the seal groove (45).

3. Ultrafiltration membrane cartridge according to claim 1, wherein the radius of the area where the ultrafiltration membrane filaments (41) are fixed to the sealing head (43) is smaller than the inner radius of the cartridge housing (42).

4. Ultrafiltration membrane cartridge according to any of claims 1-3, characterized in that the sealing head (43) is made of epoxy glue.

5. A filter, characterized by comprising an ultrafiltration membrane cartridge (4) according to any of claims 1 to 4.

6. A filter according to claim 5, further comprising a housing (1) and an end cap (2), wherein the ultrafiltration membrane cartridge (4) is mounted in the housing (1), a raw water chamber (6) is formed between the housing (1) and the ultrafiltration membrane cartridge (4), and a purified water chamber (5) is formed between the end cap (2) and the ultrafiltration membrane cartridge (4).

7. The filter according to claim 6, characterized in that a first limit structure (13) is arranged on the inner wall of the housing (1), the first limit structure (13) is suitable for abutting against one end of the filter element shell (42) close to the ultrafiltration membrane filaments (41), a raw water inlet (11) and a sewage outlet (12) are arranged on the outer wall of the housing (1), the raw water inlet (11) is arranged on one side close to the installation port of the ultrafiltration membrane filter element (4), and the sewage outlet (12) is arranged on one end far away from the installation port of the ultrafiltration membrane filter element (4).

8. The filter according to claim 6, wherein a second limiting structure (22) is arranged on the inner wall of the end cover (2), the second limiting structure (22) is suitable for abutting against one end of the filter element shell (42) far away from the ultrafiltration membrane wires (41), a water cleaning port (21) is arranged on the outer wall of the end cover (2), and the water cleaning port (21) is arranged at one end far away from the installation port of the ultrafiltration membrane filter element (4).

9. A filter according to claim 8, wherein the elastic sealing ring (44) on the side of the ultrafiltration membrane cartridge (4) close to the ultrafiltration membrane filaments (41) is in interference fit with the inner wall of the housing (1) to form a seal, and the elastic sealing ring (44) on the side of the ultrafiltration membrane cartridge (4) far from the ultrafiltration membrane filaments (41) is in interference fit with the inner wall of the end cap (2) to form a seal.

10. A filter according to any one of claims 6-9, characterised in that the open side of the housing (1) is provided with a first quick-fit piece (14) and the open side of the end cap (2) is provided with a second quick-fit piece (23), the first quick-fit piece (14) and the second quick-fit piece (23) being fastened to each other by means of a clamping band (3).