CN215559335U

CN215559335U - Nanofiltration membrane with multilayer composite structure

Info

Publication number: CN215559335U
Application number: CN202120068549.XU
Authority: CN
Inventors: 朱金才
Original assignee: Beijing Greenoil Environmental Protection Engineering Co Ltd
Current assignee: Beijing Greenoil Environmental Protection Engineering Co Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2022-01-18
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses a nanofiltration membrane with a multilayer composite structure, which comprises a filter element and a shell, wherein the outer surface of the filter element is provided with annular teeth, the filter element and the shell are coaxially arranged, the shell is a barrel-shaped structure with through holes on the peripheral wall, a microfiltration supporting layer is arranged between the bottom end of the shell and the top end of the filter element, and X-shaped supporting frames which are arranged in parallel in a fence shape are uniformly distributed in the microfiltration supporting layer. Has the advantages that: through the antipollution layer that sets up, can effectively improve the antipollution performance of receiving the filter membrane, activated carbon layer and porous carrier in situ pack have the active carbon, can get rid of the peculiar smell of aquatic, improve the cleanliness factor of water, iodine resin sterilization layer can carry out effectual disinfecting to water, realizes filtering the multifunctionality to water, and the device can filter floater, heavy metal, bacterium, virus, silt, iron rust and microorganism etc. of aquatic.

Description

Nanofiltration membrane with multilayer composite structure

Technical Field

The utility model relates to the field of nanofiltration membranes, in particular to a nanofiltration membrane with a multilayer composite structure.

Background

The nanofiltration membrane is a new separation membrane variety developed in recent years, most of the nanofiltration membranes are composite membranes, wherein a separation layer is composed of polyelectrolyte, so that the separation layer has a certain rejection rate on inorganic salts, the composite nanofiltration membrane gradually replaces the traditional reverse osmosis membrane due to the advantages of the composite nanofiltration membrane and is widely applied to a water purification system in the field of water treatment, but the existing composite nanofiltration membrane has the defects that the structural design of a supporting layer is unreasonable, the mechanical strength is not ideal, the durability is poor, the separation layer has poor rejection capability, and the high-water-quality standard requirement of the water purification system cannot be met.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nanofiltration membrane with a multilayer composite structure, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a multilayer composite construction's receives filter membrane, filter core and shell, the filter core surface is equipped with annular tooth, the filter core with the coaxial setting of shell, the shell is equipped with the tubbiness structure of through-hole for the perisporium, the shell bottom with be equipped with the microfiltration supporting layer between the filter core top, the equipartition has the X-shaped support frame that is fence form parallel arrangement in the microfiltration supporting layer, the microfiltration supporting layer with it has antipollution layer, porous carrier layer, active carbon particle to constitute between the filter core in proper order active carbon layer, iodine resin sterilization layer, the filtration membrane layer, vice porous carrier layer and the separation layer of receiving of making of cellulose acetate, vice porous carrier layer is cellular structure setting, vice porous carrier layer intussuseption is filled with active carbon, receive the outer wall of separation layer with vice porous carrier layer laminating sets up, the inner wall that the separation layer was received is equipped with on the filter core outer wall top the ring channel of annular tooth looks interlock, the filter core is located the inside of shell, the both ends of shell all are equipped with the adapter sleeve, the microfiltration supporting layer with adapter sleeve demountable installation.

Furthermore, the shell is in threaded connection with the connecting sleeve through a plastic threaded rod, and the connecting sleeve is in threaded connection with the microfiltration supporting layer through an auxiliary plastic threaded rod.

Furthermore, a thin rod frame is fixedly arranged between the V-shaped cavities of the X-shaped support frame.

Compared with the prior art, the utility model has the following beneficial effects:

the water to be purified firstly enters the anti-pollution layer, the activated carbon layer consisting of the porous carrier layer and the shell activated carbon particles, the iodine resin sterilization layer, the nanofiltration membrane layer made of cellulose acetate, the secondary porous carrier layer and the nanofiltration separation layer in sequence through the microfiltration support layer by the through hole of the shell, so that the water can be finely filtered and purified in multiple layers, enters the secondary porous carrier layer and the nanofiltration separation layer which are filled with the activated carbon and have a honeycomb structure, and can be finely filtered and purified finally, the X-shaped support frames which are arranged in parallel in a fence shape are arranged in the microfiltration support layer, so that the mechanical strength is enhanced, the durability is further improved, the anti-pollution performance of the nanofiltration membrane can be effectively improved by the arranged anti-pollution layer, the activated carbon is filled in the activated carbon layer and the secondary porous carrier layer, the peculiar smell in the water can be removed, the cleanness of the water is improved, and the iodine resin sterilization layer can effectively sterilize the water, the multifunctional water filter is realized, and the device can filter floating substances, heavy metals, bacteria, viruses, silt, rust, microorganisms and the like in water.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a front view of a nanofiltration membrane of a multilayer composite structure according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a microfiltration support layer of a nanofiltration membrane with a multilayer composite structure according to an embodiment of the utility model.

Reference numerals:

1. a filter element; 2. a housing; 3. an annular tooth; 4. a microfiltration supporting layer; 5. an X-shaped support frame; 6. an anti-contamination layer; 7. a porous support layer; 8. an activated carbon layer; 9. an iodine resin sterilization layer; 10. a nanofiltration membrane layer; 11. a secondary porous support layer; 12. a nanofiltration separation layer; 13. connecting sleeves; 14. a plastic threaded rod; 15. A secondary plastic threaded rod; 16. a slender rod frame.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

in order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

The first embodiment is as follows:

referring to fig. 1-2, according to the embodiment of the present invention, a nanofiltration membrane with a multilayer composite structure comprises a filter element 1 and a housing 2, wherein an annular tooth 3 is disposed on an outer surface of the filter element 1, the filter element 1 and the housing 2 are coaxially disposed, the housing 2 is a barrel-shaped structure having a through hole on a peripheral wall thereof, a microfiltration support layer 4 is disposed between a bottom end of the housing 2 and a top end of the filter element 1, X-shaped support frames 5 are uniformly distributed in the microfiltration support layer 4, the microfiltration support layer 4 and the filter element 1 are arranged in a barrier shape in parallel, an anti-pollution layer 6, a porous support layer 7, an activated carbon layer 8 composed of shell activated carbon particles, an iodine resin sterilization layer 9, a nanofiltration membrane layer 10 made of cellulose acetate, an auxiliary porous support layer 11 and a nanofiltration separation layer 12 are sequentially coated between the microfiltration support layer 4 and the filter element 1, the auxiliary porous support layer 11 is disposed in a honeycomb structure, and activated carbon is filled in the auxiliary porous support layer 11, the outer wall of nanofiltration separation layer 12 with the laminating of vice porous carrier layer 11 sets up, the inner wall of nanofiltration separation layer 12 be equipped with 1 outer wall top of filter core the ring channel of 3 looks interlocks of annular tooth, filter core 1 is located the inside of shell 2, the both ends of shell 2 all have adapter sleeve 13, microfiltration supporting layer 4 with adapter sleeve 13 demountable installation.

Example two:

referring to fig. 1, for the housing 2, the housing 2 is screwed with the connection sleeve 13 through a plastic threaded rod 14, and the connection sleeve 13 is screwed with the microfiltration support layer 4 through a secondary plastic threaded rod 15.

Through the scheme of the utility model, the beneficial effects are as follows: the design of vice plastic threaded rod 15 and plastic threaded rod 14 can prevent effectively that the threaded rod from rustting, leads to dismantling inconveniently, and it is noted that can set up the strengthening rib of packing in vice plastic threaded rod 15 and plastic threaded rod 14, guarantees vice plastic threaded rod 15 and plastic threaded rod 14 intensity, and the strengthening rib is not shown in the picture.

Example three:

referring to fig. 1-2, for the X-shaped support frame 5, a thin rod frame 16 is fixedly disposed between the V-shaped cavities of the X-shaped support frame 5.

Through the scheme of the utility model, the beneficial effects are as follows: the thin bar frame 16 reinforces the strength of the X-shaped support frame 5, thereby further reinforcing the mechanical strength.

For the convenience of understanding the above technical solutions of the present invention, the following detailed description is made of the working principle or the operation mode of the present invention in the practical process:

in practical application, water to be purified firstly enters an anti-pollution layer 6, an activated carbon layer 8 consisting of shell activated carbon particles, a porous carrier layer 7, an activated carbon layer 8 consisting of iodine resin sterilization layer 9, a nanofiltration membrane layer 10 made of cellulose acetate, a secondary porous carrier layer 11 and a nanofiltration separation layer 12 from a through hole of a shell 2 through a microfiltration support layer 4 in sequence, so that fine filtration and purification can be carried out in multiple layers, the water enters the secondary porous carrier layer 11 and the nanofiltration separation layer 12 which are filled with activated carbon and have a honeycomb structure, the final fine filtration and purification can be carried out, X-shaped support frames 5 which are arranged in parallel in a fence shape are arranged in the microfiltration support layer 4, the mechanical strength is enhanced, the durability is further improved, the anti-pollution performance of the nanofiltration membrane can be effectively improved through the arranged anti-pollution layer 6, the activated carbon is filled in the activated carbon layer 8 and the secondary porous carrier layer 11, and peculiar smell in the water can be removed, the cleanness of water is improved, the iodine resin sterilization layer 9 can effectively sterilize the water, the water is filtered to have multiple performances, and the device can filter floating objects, heavy metals, bacteria, viruses, silt, rust, microorganisms and the like in the water.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a nanofiltration membrane of multilayer composite structure, its characterized in that, filter core (1) and shell (2), filter core (1) surface is equipped with annular tooth (3), filter core (1) with shell (2) coaxial setting, shell (2) are equipped with the tubbiness structure of through-hole for the perisporium, shell (2) bottom with be equipped with microfiltration supporting layer (4) between filter core (1) top, the equipartition has X shape support frame (5) that is fence form parallel arrangement in the microfiltration supporting layer (4), microfiltration supporting layer (4) with it has antipollution layer (6), porous carrier layer (7), active carbon layer (8), iodine resin sterilization layer (9), nanofiltration membrane layer (10) that cellulose acetate was made, vice porous carrier layer (11) and separating layer (12) to cover in proper order between filter core (1), vice porous carrier layer (11) are the honeycomb structure setting, vice porous carrier layer (11) intussuseption is filled with the active carbon, receive and strain the outer wall of separation layer (12) with vice porous carrier layer (11) laminating sets up, receive and strain the inner wall of separation layer (12) be equipped with filter core (1) outer wall top the ring channel of annular tooth (3) looks interlock, filter core (1) are located the inside of shell (2), adapter sleeve (13) have all been ann at the both ends of shell (2), supporting layer (4) with adapter sleeve (13) demountable installation.

2. Nanofiltration membrane according to claim 1, wherein the housing (2) is in threaded connection with the connecting sleeve (13) via a plastic threaded rod (14), and the connecting sleeve (13) is in threaded connection with the microfiltration support layer (4) via a secondary plastic threaded rod (15).

3. Nanofiltration membrane according to claim 1, wherein the strut frames (16) are fixedly arranged between the V-shaped cavities of the X-shaped support frame (5).