CN218452068U

CN218452068U - Ultrafiltration membrane assembly with high sealing performance

Info

Publication number: CN218452068U
Application number: CN202222734114.1U
Authority: CN
Inventors: 高昱琪; 高昱琳; 吴亮瑜
Original assignee: Shanghai Fengdao Technology Development Co ltd
Current assignee: Shanghai Fengdao Technology Development Co ltd
Priority date: 2022-10-15
Filing date: 2022-10-15
Publication date: 2023-02-07
Anticipated expiration: 2032-10-15

Abstract

The utility model discloses a hyperfiltration membrane component of high leakproofness, belong to hyperfiltration membrane component technical field, including the outside pipe, install center tube and the cladding at the intraductal hyperfiltration membrane core of outside on the center tube surface, the region that the hyperfiltration membrane core covered on the center tube is equipped with the opening, be equipped with the outlet on the outside pipe, the both ends of center tube stretch out from the outside pipe, be water inlet and drain respectively, treat the filtrating from the water inlet input of center tube, discharge from the outlet after being filtered by the hyperfiltration membrane core, the drain is used for discharging not treat the filtrating by the filterable high enriched of hyperfiltration membrane core, be equipped with the membrane core frame that is used for fixed hyperfiltration membrane core in the outside pipe, the membrane core frame has the pressure effect and makes the hyperfiltration membrane core hug closely the center tube at the hyperfiltration membrane core, through setting up the membrane core frame, the membrane core frame is inseparable the pressing down on the center tube with the hyperfiltration membrane core, make the leakproofness of hyperfiltration membrane core high with the center tube, the filtrating after the pollution filtration of treating of having avoided oozing from the center tube.

Description

Ultrafiltration membrane assembly with high sealing performance

Technical Field

The utility model belongs to the technical field of the milipore filter subassembly, more specifically relates to a milipore filter subassembly of high leakproofness.

Background

Ultrafiltration membranes are artificial permeable membranes used in ultrafiltration processes, generally made of polymeric materials such as: cellulose acetate, cellulose acetate esters, polyethylene, polysulfone, and polyamide. Membrane modules of various types such as tubular type, plate type, roll type, capillary type and the like are generally manufactured in advance, and then a plurality of modules are assembled together for application so as to increase the filtration area and facilitate maintenance.

The traditional ultrafiltration membrane is usually prepared into a tube core type, and is matched with an inner tube and an outer tube to filter liquid, a filtrate to be filtered is introduced into the inner tube, and the filtrate is obtained after being filtered by an ultrafiltration membrane core, so the sealing performance of the ultrafiltration membrane core and the inner tube is critical, if the sealing performance is poor, the filtrate to be filtered can seep out and be mixed into the filtrate, and secondary pollution is caused.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem that the sealing performance of an inner ultrafiltration membrane and an inner tube of the existing ultrafiltration membrane component is poor, and the problem that filtrate is leaked from the poor sealing part and pollutes the filtrate is easily caused.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a hyperfiltration membrane component of high leakproofness, including the outside pipe, install center tube and the cladding at the intraductal hyperfiltration membrane core of outside on the center tube surface, the region that hyperfiltration membrane core covered on the center tube is equipped with the opening, be equipped with the outlet on the outside pipe, stretch out from the outside pipe at the both ends of center tube, be water inlet and drain respectively, treat filtrating from the water inlet input of center tube, discharge from the outlet after being filtered by the hyperfiltration membrane core, the drain is used for discharging not treating filtrating by the filterable high enriched of hyperfiltration membrane core, be equipped with the membrane core frame that is used for fixed hyperfiltration membrane core in the outside pipe, membrane core frame has the pressure effect and makes the hyperfiltration membrane core hug closely the center tube.

Preferably, membrane core frame include the frame, install the subassembly that compresses tightly on the frame, and the frame includes the solid fixed ring of a plurality of coaxial settings, carries out fixed connection through the connecting rod between a plurality of solid fixed rings, and a plurality of solid fixed ring is gone up and is equallyd divide cloth and have a plurality of to compress tightly the subassembly, and the one end that compresses tightly the subassembly stretches out along solid fixed ring's radial outside, and the other end stretches out along radial inside and presses on the ultrafiltration membrane core.

Preferably, compress tightly the subassembly and include arc main part, arc auxiliary and top pressure receiver, top pressure receiver fixed mounting is equipped with the movable block on solid fixed ring on the pressure receiver of top, and the movable block can be on the pressure receiver of top along solid fixed ring's radial slip, and the movable block passes through spring coupling arc main part, is equipped with on the arc main part with solid fixed ring coaxial arc groove, the arc auxiliary is located the arc inslot.

Preferably, the arc main part and the arc auxiliary part are cambered surfaces in contact with the ultrafiltration membrane core, the cambered surfaces are coaxial with the fixing rings, springs are arranged in the arc grooves, one ends of the springs are connected with the bottoms of the arc grooves, and the other ends of the springs are connected with the arc auxiliary part.

Preferably, the opening of the central tube is provided with a shallow groove, and the ultrafiltration membrane core is pressed in the shallow groove and covers the opening.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) The utility model discloses an ultrafiltration membrane subassembly of high leakproofness, through setting up membrane core frame, the inseparable pressing of ultrafiltration membrane core is on the center tube with membrane core frame for the leakproofness of ultrafiltration membrane core and center tube is high, has avoided treating the filtrating of polluting the filtrating after the filtration that oozes from the center tube.

(2) The utility model discloses a milipore filter subassembly of high leakproofness is equipped with arc main part and arc auxiliary on the membrane core frame, mutually supports, can adjust the cooperation according to the user state of milipore filter core and press, keeps the zonulae occludens of milipore filter core and center tube throughout, improves the leakproofness.

Drawings

Fig. 1 is a schematic structural diagram of a high-sealing ultrafiltration membrane module according to the present invention;

fig. 2 is a schematic structural diagram of a membrane core frame of a high-tightness ultrafiltration membrane component of the invention;

fig. 3 is a schematic structural diagram of a cut surface of a high-sealability ultrafiltration membrane module according to the present invention;

fig. 4 is a schematic diagram of a filtration process of the ultrafiltration membrane module with high sealing performance according to the present invention;

fig. 5 is a schematic structural diagram of a compressing assembly of the ultrafiltration membrane assembly with high sealing performance of the present invention.

The reference numerals in the schematic drawings illustrate:

100. an outer tube; 110. a water outlet; 120. a film core frame; 121. a frame; 1211. a fixing ring; 1212. a connecting rod; 122. a compression assembly; 1221. an arc-shaped main part; 1222. an arc-shaped auxiliary member; 1223. a top pressure receiver; 1224. a movable block; 1225. an arc groove;

200. a central tube; 210. an opening; 220. shallow-trough;

300. and (4) an ultrafiltration membrane core.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 5, in the ultrafiltration membrane module of this embodiment, an external pipe 100, a central pipe 200 installed in the external pipe 100, and an ultrafiltration membrane core 300 coated on the surface of the central pipe 200 are provided, an opening 210 is provided in an area covered by the ultrafiltration membrane core 300 on the central pipe 200, a drain outlet 110 is provided on the external pipe 100, two ends of the central pipe 200 extend out from the external pipe 100 and are respectively a water inlet and a drain outlet, a filtrate to be input from the water inlet of the central pipe 200 is filtered by the ultrafiltration membrane core 300 and then discharged from the drain outlet 110, the drain outlet is used for discharging a high concentration filtrate to be filtered by the ultrafiltration membrane core 300, a membrane core frame 120 for fixing the ultrafiltration membrane core 300 is provided in the external pipe 100, the membrane core frame 120 has a pressure applied to the ultrafiltration membrane core 300 to make the ultrafiltration membrane core 300 tightly contact with the central pipe 200, it should be noted that the ultrafiltration membrane core 300 in the ultrafiltration membrane module is covered on the central pipe 200, the filtrate to pass through the opening 210 and be filtered by the ultrafiltration membrane core 300 to obtain a desired liquid, wherein if the contact between the ultrafiltration membrane core 300 and the central tube 200 is not tight enough, a gap exists, and a part of the filtrate to be filtered leaks out from the gap between the central tube 200 and the ultrafiltration membrane core 300 along the wall of the central tube 200, further contaminating the liquid filtered by the ultrafiltration membrane core 300, so that the filtering effect is poor, and thus is particularly critical to the seal between the ultrafiltration membrane cartridge 300 and the central tube 200, the structure of the present design, the membrane cartridge holder 120 provides a stable pressure against the ultrafiltration membrane cartridge 300, so that the ultrafiltration membrane core 300 is tightly attached to the central tube 200, further, no gap is left between the ultrafiltration membrane core 300 and the central tube 200, therefore, the liquid to be filtered cannot be polluted by the seeping filtrate, and the sealing performance is stronger.

In the membrane cartridge 120 of the present embodiment, the membrane cartridge 120 includes a frame 121 and a pressing assembly 122 mounted on the frame 121, the frame 121 includes a plurality of coaxially disposed fixing rings 1211, the fixing rings 1211 are fixedly connected to each other by a connecting rod 1212, the plurality of pressing assemblies 122 are distributed on the fixing rings 1211, one end of the pressing assembly 122 extends outward along a radial direction of the fixing ring 1211, and the other end extends inward along the radial direction and presses on the ultrafiltration membrane cartridge 300.

The pressing assembly 122 of the embodiment includes an arc-shaped main member 1221, an arc-shaped auxiliary member 1222, and a top pressure member 1223, the top pressure member 1223 is fixedly installed on the fixing ring 1211, the top pressure member 1223 is provided with a movable block 1224, the movable block 1224 can slide on the top pressure member 1223 along the radial direction of the fixing ring 1211, the movable block 1224 is connected to the arc-shaped main member 1221 through a spring, the arc-shaped main member 1221 is provided with an arc groove 1225 coaxial with the fixing ring 1211, and the arc-shaped auxiliary member 1222 is located in the arc groove 1225.

The arc main part 1221 and the arc auxiliary part 1222 of this embodiment are both arcs on the surface contacting with the ultrafiltration membrane core 300, the arcs are both coaxial with the fixing ring 1211, a spring is arranged in the arc groove 1225, one end of the spring is connected with the bottom of the arc groove 1225, and the other end of the spring is connected with the arc auxiliary part 1222.

When the membrane core holder 120 designed as above is used, the ultrafiltration membrane core 300 is firstly installed in the membrane core holder 120, and then the membrane core holder 120 is installed in the external pipe 100, at this time, the movable block 1224 on the pressure receiver is contacted and pressed with the inner wall of the external pipe 100, and is provided for the spring on the movable block 1224, the spring is compressed, and provides elastic force to the arc-shaped main part 1221, so that the arc-shaped main part 1221 tightly presses the ultrafiltration membrane core 300, wherein the arc-shaped auxiliary part 1222 is contacted with the adjacent arc-shaped main part 1221 under the action of the spring in the arc groove 1225, and further, a plurality of pressing components 122 on the same fixing ring 1211 form a component with a complete cross section circle, so as to press the ultrafiltration membrane core 300, further, the ultrafiltration membrane core 300 is tightly attached to the pipe wall of the central pipe 200 all the time, and the sealing performance is high.

After using for a period of time, ultrafiltration membrane core 300 is expanded or when contracting to some extent, like the change of temperature, the adhesion of filtering material etc., arc main part 1221 and arc auxiliary 1222 can cooperate each other and adjust, it is specific, if ultrafiltration membrane core 300 has expanded, arc main part 1221 is along the radial displacement of ultrafiltration membrane core 300, the spring on the movable block further compresses, the clearance of adjacent arc main part 1221 increases, arc auxiliary 1222 receives the spring effect in the arc groove 1225, move and contact the laminating to adjacent arc main part 1221, vice versa, do not describe in detail.

The shallow groove 220 is arranged at the opening 210 of the center tube 200 in the embodiment, the ultrafiltration membrane core 300 is pressed in the shallow groove 220 and covers the opening 210, and for better sealing, the shallow groove 220 is designed, and because the ultrafiltration membrane core 300 has certain compressibility, the ultrafiltration membrane core 300 can sink into the shallow groove 220 and cover the opening 210, so that the sealing performance of the ultrafiltration membrane core 300 to the opening 210 is better, and the to-be-filtered liquid seeped between the ultrafiltration membrane core 300 and the center tube 200 cannot exist.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A high leakproofness's milipore filter subassembly which characterized in that: including outside pipe (100), install center tube (200) in outside pipe (100) and cladding ultrafiltration membrane core (300) on center tube (200) surface, the region that ultrafiltration membrane core (300) covered is equipped with opening (210) on center tube (200), be equipped with outlet (110) on outside pipe (100), the both ends of center tube (200) are stretched out from outside pipe (100), are water inlet and drain respectively, follow the water inlet input of center tube (200) treat the filtrating, by ultrafiltration membrane core (300) filters the back and discharges from outlet (110), the drain is used for discharging not by ultrafiltration membrane core (300) filterable high concentration and treats the filtrating, be equipped with membrane core frame (120) that are used for fixed ultrafiltration membrane core (300) in outside pipe (100), membrane core frame (120) have pressure effect and make ultrafiltration membrane core (300) hug closely center tube (200).

2. The ultrafiltration membrane module with high sealing performance according to claim 1, wherein: the membrane core frame (120), membrane core frame (120) include frame (121), install the subassembly (122) that compresses tightly on frame (121), frame (121) include a plurality of coaxial arrangement's solid fixed ring (1211), carry out fixed connection through connecting rod (1212) between a plurality of solid fixed ring (1211), it has a plurality of to compress tightly subassembly (122) to divide equally to distribute on a plurality of solid fixed ring (1211), the one end that compresses tightly subassembly (122) is stretched out along the radial outside of solid fixed ring (1211), and the other end is stretched out along radial inside and is pressed on ultrafiltration membrane core (300).

3. The ultrafiltration membrane module with high sealing performance according to claim 2, wherein: the pressing assembly (122) comprises an arc-shaped main part (1221), an arc-shaped auxiliary part (1222) and a top pressure receiver (1223), the top pressure receiver (1223) is fixedly installed on a fixing ring (1211), a movable block (1224) is arranged on the top pressure receiver (1223), the movable block (1224) can slide on the top pressure receiver (1223) along the radial direction of the fixing ring (1211), the movable block (1224) is connected with the arc-shaped main part (1221) through a spring, an arc groove (1225) coaxial with the fixing ring (1211) is formed in the arc-shaped main part (1221), and the arc-shaped auxiliary part (1222) is located in the arc groove (1225).

4. The ultrafiltration membrane module with high sealing performance according to claim 3, wherein: the ultrafiltration membrane core (300) is characterized in that the surfaces of the arc main part (1221) and the arc auxiliary part (1222), which are in contact with the ultrafiltration membrane core (300), are arc surfaces, the arc surfaces are coaxial with the fixing ring (1211), a spring is arranged in the arc groove (1225), one end of the spring is connected with the bottom of the arc groove (1225), and the other end of the spring is connected with the arc auxiliary part (1222).

5. The ultrafiltration membrane module with high sealing performance according to claim 1, wherein: the opening (210) on the central tube (200) is provided with a shallow groove (220), and the ultrafiltration membrane core (300) is pressed in the shallow groove (220) and covers the opening (210).