CN213433865U

CN213433865U - High-flux needle filter with multi-layer filter membrane structure

Info

Publication number: CN213433865U
Application number: CN202022076031.9U
Authority: CN
Inventors: 邢玲; 贺明
Original assignee: Membrane Biomembrane Technology Nantong Co ltd
Current assignee: Membrane Biomembrane Technology Nantong Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-06-15
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a high flux needle filter with multilayer filter membrane structure relates to needle type filter field, including filter inferior valve and filter epitheca, be provided with GFC membrane, GF10 membrane, PP membrane and millipore filtration membrane between filter inferior valve and the filter epitheca respectively, first filtration pore has been seted up to millipore filtration membrane's inside, all is provided with the filter element around the first filtration pore, and the inlet has been seted up at the top of filter epitheca. The utility model discloses a set up the GFC membrane, GF10 membrane, PP membrane and millipore filtration, adopt four rete membrane filtration, the user will need filterable liquid to pour into from the inlet, liquid passes through the GFC membrane in proper order, GF10 membrane, PP membrane and millipore filtration, when GF10 membrane and PP membrane, GF10 membrane and PP membrane can hold back some large granules in the liquid, avoided the too fast jam of membrane on the one hand, on the other hand has increased the filter capacity of needle type filter, the holistic performance of filter has been improved.

Description

High-flux needle filter with multi-layer filter membrane structure

Technical Field

The utility model relates to a pin type filter field specifically is a high flux pin type filter with multilayer filter membrane structure.

Background

In HPLC analysis, the chromatographic column packing has small particle size and is easily blocked by impurity particles, so that the sample and the solvent need to be filtered in advance to remove particle pollutants and protect the instrument. The ion chromatography commonly used in environmental analysis also requires that inorganic pollutants cannot be introduced in sample pretreatment, the needle type filter can be used in HPLC analysis and IC analysis to filter sample solution, and is an important step in the sample pretreatment process, the needle type filter shell material is selected from high-quality sanitary-grade polypropylene material, the product structural design is precise, the smoothness of filtration is ensured, the internal space is reasonable, the residual rate is very low, and thus the waste of samples is reduced.

The needle filter has different diameters and different liquid treatment capacities, the treatment capacity of the needle filter is smaller due to the smaller aperture ratio of the microporous filter membrane, and the needle filter is easy to block the filter membrane when filtering viscous liquid, so that the filtering capacity of the needle filter is very small.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the pore diameter of a microporous filter membrane is small and the filter membrane is easily blocked by viscous liquid, a high-flux needle filter with a multi-layer filter membrane structure is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high flux needle filter with multilayer filter membrane structure, includes filter inferior valve and filter epitheca, be provided with GFC membrane, GF10 membrane, PP membrane and millipore filtration membrane between filter inferior valve and the filter epitheca respectively, first filtration pore has been seted up to millipore filtration membrane's inside, all be provided with the filter element around first filtration pore, the inlet has been seted up at the top of filter epitheca, the bottom of filter epitheca is fixed with the threaded rod, the liquid outlet has been seted up to the bottom of filter inferior valve, the thread groove has been seted up to the inside top of filter inferior valve, the inside below of filter inferior valve is provided with the second filtration pore.

Preferably, the filter disc is provided with a plurality of filter discs, and the plurality of filter discs are arranged in an annular array.

Preferably, the threaded rod is threadedly connected with the threaded groove.

Preferably, the GFC membrane, GF10 membrane, PP membrane and microfiltration membrane are parallel to each other.

Preferably, the pore size of the GFC membrane is 1.6 μm, the pore size of the GF10 membrane is 1.5 μm, and the pore size of the PP membrane is 1.0 μm.

Preferably, the second filtering holes are provided in plurality and are uniformly distributed.

Preferably, the filter lower shell and the filter upper shell are both made of polypropylene materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up GFC membrane, GF10 membrane, PP membrane and millipore filtration, adopt four tunic filtration, the user pours into the liquid that needs to filter from the inlet, and liquid passes through GFC membrane, GF10 membrane, PP membrane and millipore filtration in proper order, and when passing through GF10 membrane and PP membrane, GF10 membrane and PP membrane can hold back some large granules in the liquid, have avoided the membrane to block up too fast on the one hand, and on the other hand has increased the filter capacity of needle type filter, has improved the holistic performance of filter;

2. the utility model discloses a set up first filtration pore, filter element and second filtration pore, liquid is when process microporous filter membrane, and partly liquid flows in the second filtration pore through first filtration pore, and another part liquid flows in the second filtration pore through a plurality of filter elements, and the average filter fineness of filter element is 5-80um, and the flow of filter element is big, filtration efficiency is high to make the handling capacity of pin type filter strengthen, improved the whole filtration speed of filter.

Drawings

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

FIG. 2 is a schematic view of the structure of the microporous membrane of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the lower case of the filter of the present invention;

fig. 4 is a schematic view of the filter lower case structure of the present invention.

In the figure: 1. a filter lower shell; 2. a filter upper shell; 3. a liquid inlet; 4. a GFC film; 5. GF10 membranes; 6. a PP film; 7. a microporous filtration membrane; 8. a first filter hole; 9. a filter disc; 10. a threaded rod; 11. a thread groove; 12. a second filter hole; 13. and a liquid outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 "disposed" 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. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-4, a high flux needle filter with a multi-layer filter membrane structure includes a lower filter shell 1, an upper filter shell 2, a liquid inlet 3, a GFC membrane 4, a GF10 membrane 5, a PP membrane 6, a microporous filter membrane 7, a first filter hole 8, a filter sheet 9, a threaded rod 10, a threaded groove 11, a second filter hole 12, and a liquid outlet 13; be provided with GFC membrane 4 between filter inferior valve 1 and the filter epitheca 2 respectively, GF10 membrane 5, PP membrane 6 and millipore filtration 7, first filtration pore 8 has been seted up to millipore filtration 7's inside, all be provided with filter element 9 around first filtration pore 8, inlet 3 has been seted up at the top of filter epitheca 2, the bottom of filter epitheca 2 is fixed with threaded rod 10, liquid outlet 13 has been seted up to the bottom of filter inferior valve 1, thread groove 11 has been seted up to the inside top of filter inferior valve 1, the inside below of filter inferior valve 1 is provided with second filtration pore 12.

Please refer to fig. 2-4, the filter sheets 9 are provided in plural, and the plural filter sheets 9 are arranged in an "annular array", the average filtering precision of the filter sheets 9 is 5-80um, the flow rate of the filter sheets 9 is large, and the filtering efficiency is high, so that the processing capacity of the needle filter is increased, and the threaded rod 10 is in threaded connection with the threaded groove 11, which is convenient for the user to open the filter.

Please refer to fig. 1 and fig. 2, the GFC membrane 4, the GF10 membrane 5, the PP membrane 6 and the microfiltration membrane 7 are parallel to each other, the liquid is sequentially filtered by the GFC membrane 4, the GF10 membrane 5, the PP membrane 6 and the microfiltration membrane 7, the pore size of the GFC membrane 4 is 1.6 μm, the pore size of the GF10 membrane 5 is 1.5 μm, the pore size of the PP membrane 6 is 1.0 μm, and the GF10 membrane 5 and the PP membrane 6 can retain some large particles in the liquid.

Please refer to fig. 1, fig. 3 and fig. 4, the second filtering holes 12 are provided in plural numbers, and the plural second filtering holes 12 are uniformly distributed, and the lower filter housing 1 and the upper filter housing 2 are both made of polypropylene, and the polypropylene has high crystallinity, regular structure, excellent mechanical property and good heat resistance.

The working principle is as follows: firstly, a user rotates the upper shell 2 of the filter, the threaded rod 10 is separated from the threaded groove 11, the GFC membrane 4, the GF10 membrane 4, the PP membrane 6 and the microfiltration membrane 7 are installed in the filter, then liquid to be filtered is poured into the filter from the liquid inlet 3, the liquid passes through the GFC membrane 4, the GF10 membrane 5, the PP membrane 6 and the microfiltration membrane 7 in sequence, when passing through the GF10 membrane 5 and the PP membrane 6, the GF10 membrane 5 and the PP membrane 6 can intercept some large particles in the liquid, on one hand, the membrane is prevented from being blocked too fast, on the other hand, the filtration capacity of the needle filter is increased, when the liquid passes through the microporous filter membrane 7, one part of the liquid flows into the second filter hole 12 through the first filter hole 8, the other part of the liquid flows into the second filter hole 12 through the plurality of filter sheets 9, the average filtration precision of the filter sheets 9 is 5-80um, the flow of the filter sheets 9 is large, the filtration efficiency is high, and therefore the treatment capacity of the needle filter is increased.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A high flux needle filter with a multi-layer filter membrane structure comprises a lower filter shell (1) and an upper filter shell (2), and is characterized in that: be provided with GFC membrane (4), GF10 membrane (5), PP membrane (6) and millipore filtration membrane (7) between filter inferior valve (1) and filter epitheca (2) respectively, first filtration pore (8) have been seted up to millipore filtration membrane (7) inside, all be provided with filter element (9) around first filtration pore (8), inlet (3) have been seted up at the top of filter epitheca (2), the bottom of filter epitheca (2) is fixed with threaded rod (10), liquid outlet (13) have been seted up to the bottom of filter inferior valve (1), thread groove (11) have been seted up to the inside top of filter inferior valve (1), the inside below of filter inferior valve (1) is provided with second filtration pore (12).

2. The high-flux needle filter with a multi-layer filter membrane structure as claimed in claim 1, wherein: the filter disc (9) is provided with a plurality of filter discs, and the plurality of filter discs (9) are arranged in an annular array shape.

3. The high-flux needle filter with a multi-layer filter membrane structure as claimed in claim 1, wherein: the threaded rod (10) is in threaded connection with the threaded groove (11).

4. The high-flux needle filter with a multi-layer filter membrane structure as claimed in claim 1, wherein: the GFC membrane (4), the GF10 membrane (5), the PP membrane (6) and the microporous filter membrane (7) are parallel to each other.

5. The high-flux needle filter with a multi-layer filter membrane structure as claimed in claim 1, wherein: the aperture size of the GFC membrane (4) is 1.6 mu m, the aperture size of the GF10 membrane (5) is 1.5 mu m, and the aperture size of the PP membrane (6) is 1.0 mu m.

6. The high-flux needle filter with a multi-layer filter membrane structure as claimed in claim 1, wherein: the second filtering holes (12) are arranged in a plurality, and the second filtering holes (12) are uniformly distributed.

7. The high-flux needle filter with a multi-layer filter membrane structure as claimed in claim 1, wherein: the filter lower shell (1) and the filter upper shell (2) are both made of polypropylene materials.