CN218871794U - Filtering membrane package and filter equipment thereof - Google Patents

Abstract

The utility model relates to the technical field of biological filtration, and discloses a filter membrane package and a filter device thereof, which comprises a liquid inlet diversion layer, a liquid outlet diversion layer and a filter membrane layer, wherein the liquid inlet diversion layer and the liquid outlet diversion layer are arranged in a staggered and overlapped mode in a first direction, and the adjacent liquid inlet diversion layer and the liquid outlet diversion layer are communicated with each other through the filter membrane layer; the liquid inlet diversion layer and/or the liquid outlet diversion layer are/is internally provided with a liquid guide net which comprises a rigid curved surface piece, and the rigid curved surface piece is provided with a sieve pore. The utility model discloses can separate upper and lower adjacent filtration rete effectively, guarantee that the runner is unblocked, can improve filtration efficiency.

Description

Filtering membrane package and filter equipment thereof

Technical Field

The utility model relates to a biological filtration technical field especially relates to a filtration membrane package and filter equipment thereof.

Background

The separation and purification is an indispensable step for obtaining high-purity and high-activity biopharmaceutical products, membrane separation is a common technology, substances with specific molecular weights can be filtered, membranes used in the process comprise a microfiltration membrane, an ultrafiltration membrane and a nanofiltration membrane, and screening is realized through the pore diameter of the membranes by means of stable pressure and flow rate, so that macromolecular substances are forced to be intercepted, and small molecular components are filtered out, so that the separation, concentration and purification of effective components can be completed.

The membrane separation assembly comprises a pump, a membrane package, a pipeline, a pressure valve and the like, wherein the membrane package is a core component which uses a liquid guide net as a support, uses a filtering membrane as a filtering medium and uses pressure difference as driving force to filter. The filtering membranes in the membrane package are separated by a liquid guide net, so that a flow channel is formed. At present, the common basic filter unit of the membrane package is a stack structure formed by a filter layer and a liquid guide net, the liquid guide net is a plane structure, the liquid guide net has a flow guide effect on liquid, a smooth flow channel is formed between the filter layer and the liquid guide net, when the filter membrane package is used, the membrane package needs to be clamped by adopting modes such as a clamp and the like, in the clamping process, the basic filter unit and even the whole membrane package can be compressed to a certain degree, the thickness of the membrane package is reduced, the filter layer is attached to the liquid guide net, gaps hardly exist between the filter layer and the filter layer, the flow channel between the filter layer and the liquid guide net is not smooth any more, the liquid is difficult to circulate, and the filtering efficiency is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the filter membrane pack and the filter device thereof are designed, and can effectively isolate the filter membrane layer, ensure the smooth flow passage and improve the filter efficiency.

In order to achieve the above object, the utility model provides a filtering membrane package, filtering membrane package includes feed liquor drainage layer, play liquid drainage layer and filtering membrane layer, feed liquor drainage layer and play liquid drainage layer are crisscross range upon range of setting in the first direction, and adjacent feed liquor drainage layer and play liquid drainage layer between communicate through the filtering membrane layer, filtering membrane package is last to be seted up along the feed liquor passageway that first direction extends and along the play liquid channel that first direction extends, feed liquor passageway with the feed liquor drainage layer is linked together, go out liquid channel with go out liquid drainage layer and be linked together; and a liquid guide net is arranged in the liquid inlet flow guide layer and/or the liquid outlet flow guide layer and comprises a rigid curved surface piece, and sieve holes are arranged on the rigid curved surface piece.

Preferably, the liquid inlet flow guide layer, the liquid outlet flow guide layer and the filter membrane layer extend along a second direction, wherein the first direction is perpendicular to the second direction.

Preferably, the rigid curved member has a wave shape, and the wave direction of the wave shape extends along the second direction.

Preferably, the liquid guiding net further comprises two rigid plane members respectively arranged at two sides of the rigid curved surface member, the rigid plane members are in a screen shape, and peaks and troughs of the rigid curved surface members in the same liquid guiding net are respectively abutted to the two rigid plane members.

Preferably, the wave height of the rigid curved surface material is in the range of 0.4 to 0.8mm.

Preferably, the mesh number on the rigid plane member is less than or equal to 200 meshes.

Preferably, the thickness of the rigid planar member is 0.1 to 0.5mm.

Preferably, the pore size of the sieve pore is greater than or equal to 0.5mm.

The utility model also provides a filter equipment, filter equipment contains as before filtration membrane package, still include two splint along first direction interval parallel arrangement, filtration membrane package clamp is located two in the middle of the splint, set up a plurality of interfaces that are used for connecting the fluid pipeline on the splint, each the interface respectively with inlet channel's both ends reach outlet channel's both ends one-to-one intercommunication.

Preferably, the two clamping plates are fixedly connected through bolts, and the bolts are positioned on the outer side of the filter membrane package.

The embodiment of the utility model provides a filter membrane package and filter equipment thereof compares with prior art, and its beneficial effect lies in:

the utility model discloses filter membrane package and filter equipment are equipped with rigidity curved surface spare in the drain net in its filter membrane package, can separate upper and lower adjacent filtration rete effectively, guarantee that the runner is unblocked, can improve filtration efficiency.

Drawings

FIG. 1 is an isometric view of a filtration membrane package according to an embodiment of the present invention;

FIG. 2 is an isometric view of a filter apparatus according to an embodiment of the present invention;

FIG. 3 is a top view of a filtration device according to an embodiment of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

fig. 5 is a front view of a liquid guide net in a filtering device according to an embodiment of the present invention;

FIG. 6 is an isometric view of a rigid curved member of a filter assembly according to an embodiment of the invention;

FIG. 7 is a top view of a rigid planar member of a filter assembly according to an embodiment of the present invention;

FIG. 8 is a schematic view of the flow direction of liquid during filtration by the filtration apparatus according to the embodiment of the present invention;

fig. 9 is an enlarged schematic view at B in fig. 8.

In the figure, 1, a splint; 11. an interface;

2. filtering and film packing; 21. feeding liquid into the flow guide layer; 22. discharging a liquid guide layer; 23. a filtration membrane layer; 24. a liquid inlet channel; 25. a liquid outlet channel;

3. a liquid guiding net; 31. a rigid curved surface member; 311. screening holes; 32. a rigid planar member;

4. a bolt;

5. a silica gel gasket.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are used in the present invention as indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, and 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.

In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be understood in a broad sense, and for example, the terms may be fixedly connected, detachably connected, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in the figure, the utility model discloses in, the x direction is first direction, and the y direction is the second direction, and the z direction is the third direction, wherein, two liang of mutually perpendicular of x direction, y direction and z direction.

As shown in fig. 1, the filtering membrane package 2 according to the preferred embodiment of the present invention includes a liquid inlet guiding layer 21, a liquid outlet guiding layer 22 and a filtering membrane layer 23, wherein the liquid inlet guiding layer 21 and the liquid outlet guiding layer 22 are stacked in a staggered manner in the first direction, and the adjacent liquid inlet guiding layer 21 and the liquid outlet guiding layer 22 are communicated with each other through the filtering membrane layer 23, the filtering membrane package 2 is provided with a liquid inlet channel 24 extending in the first direction and a liquid outlet channel 25 extending in the first direction, the liquid inlet channel 24 is communicated with the liquid inlet guiding layer 21, and the liquid outlet channel 25 is communicated with the liquid outlet guiding layer 22; the liquid inlet flow guide layer 21 and the liquid outlet flow guide layer 22 are internally provided with a liquid guide net 3, the liquid guide net 3 comprises a rigid curved surface piece 31, and the rigid curved surface piece 31 is provided with a sieve hole 311.

As shown in fig. 2 and fig. 6, the filtering apparatus according to the preferred embodiment of the present invention includes two clamping plates 1 arranged in parallel at an interval along a first direction and a filtering membrane package 2 arranged between the two clamping plates 1, wherein the filtering membrane package 2 includes a liquid inlet flow guiding layer 21, a liquid outlet flow guiding layer 22 and a filtering membrane layer 23, the liquid inlet flow guiding layer 21 and the liquid outlet flow guiding layer 22 are stacked in a staggered manner along the first direction, and the adjacent liquid inlet flow guiding layer 21 and the liquid outlet flow guiding layer 22 are communicated with each other through the filtering membrane layer 23, the filtering membrane package 2 is provided with a liquid inlet channel 24 extending along the first direction and a liquid outlet channel 25 extending along the first direction, the liquid inlet channel 24 is communicated with the liquid inlet flow guiding layer 21, and the liquid outlet channel 25 is communicated with the liquid outlet flow guiding layer 22; the liquid inlet guide layer 21 and the liquid outlet guide layer 22 are internally provided with a liquid guide net 3, the liquid guide net 3 comprises a rigid curved surface piece 31, and the rigid curved surface piece 31 is provided with a sieve pore 311.

The filtering membrane package 2 is a multilayer stack structure, when filtering, the filtering stock solution is pumped from one end of the liquid inlet channel 24, enters the liquid guide net 3 of the liquid inlet flow guide layer 21, flows to the filtering membrane layers 23 at the two sides, partially passes through the filtering of the filtering membrane layers 23, enters the liquid guide net 3 of the liquid outlet flow guide layer 22, and flows out through the liquid outlet channel 25 to form filtering clear liquid; the rest part can not pass through the filter membrane layer 23, then tangentially flows, can flow out through the other end of the liquid inlet channel 24 to form a recovery liquid, and the recovery liquid can be continuously pumped back into the liquid inlet channel 24 for secondary filtration or concentration.

Wherein, the diameter of the liquid outlet channel 25 can be set to be larger than that of the liquid outlet channel 25, which is beneficial to feeding more filtered stock solution to form pressure difference. The filtering membrane layer 23 is internally provided with a filtering membrane which can be an ultrafiltration membrane layer, a microfiltration membrane layer or a nanofiltration membrane, the aperture of the filtering membrane is selected according to the application, the inlet liquid diversion layer 21 or the outlet liquid diversion layer 22 has no filtering effect, and the filtering membrane layer 23 is supported only by the liquid diversion net 3.

The rigid curved surface piece 31 in the liquid guide net 3 can effectively support and isolate the filtering membranes on two adjacent sides, certain buffering is provided for the pressing force from the two clamping plates 1, the filtering membranes in the two adjacent filtering membrane layers 23 are prevented from being too attached to influence the flowing of filtering stock solution or filtering clear liquid, the flow channel of the flow guide layer can be kept smooth by the rigid curved surface piece 31, and the filtering efficiency is improved.

Further, as shown in fig. 3 and 4, the liquid inlet guide layer 21, the liquid outlet guide layer 22, and the filter membrane layer 23 all extend along a second direction, wherein the first direction and the second direction are perpendicular to each other. The liquid inlet channel 24 and the liquid outlet channel 25 are respectively positioned on two opposite sides of the filtering membrane package 2 along the second direction, so that the filtering stock solution and the filtering clear solution can conveniently flow in the diversion layer.

Further, the rigid curved member 31 has a wave shape, the wave direction of which extends along the second direction, and the wave-shaped rigid curved member 31 can effectively resist the pressing force from the two clamping plates 1 and provide support for the two adjacent filter membrane layers 23.

Further, as shown in fig. 5 and 7, the liquid guiding net 3 further includes two rigid planar members 32 respectively disposed at two sides of the rigid curved member 31, peaks and troughs of the rigid curved member 31 are respectively abutted to the two rigid planar members 32, and the rigid planar members 32 are in a mesh shape. The liquid guiding net 3 is a three-dimensional liquid guiding net 3, two rigid plane pieces 32 are respectively positioned on the upper surface and the lower surface, and a rigid curved surface piece 31 is arranged in the middle layer to form a sandwich type structure. The rigid plane members 32 on the upper and lower surfaces are used for contacting with the filtering membrane layers 23 to play a role of basic support, and the rigid curved surface members 31 are used for separating the rigid plane members 32 on the upper and lower surfaces to form an unobstructed inlet liquid guide layer 21 or outlet liquid guide layer 22 between two adjacent filtering membrane layers 23. Specifically, the liquid guiding net 3 may be formed by injection molding of a plastic having a high rigidity, or may be formed by separately injection molding a rigid curved surface member 31 and two rigid flat surface members 32, and then bonding them by hot pressing or the like. The material of the rigid planar member 32 and the rigid curved member 31 may be PC, PC/ABS, or the like.

Further, the wave height range of the rigid curved surface member 31 is 0.4-0.8 mm, if the wave height range is too low, the flow guiding effect is not obvious, and if the wave height range is too high, the total thickness of the filter membrane package 2 is affected, so that the thickness of the filter membrane package is too large.

Furthermore, the mesh number on the rigid plane piece 32 is less than or equal to 200 meshes, so that the influence of too small mesh on the normal filtering effect is avoided.

Further, the thickness of the rigid plane piece 32 is 0.1-0.5 mm, so that the strength of the rigid plane piece 32 is ensured while the excessive thickness of the filter membrane package 2 is avoided.

Further, the aperture of the sieve holes 311 is larger than or equal to 0.5mm, so that blockage caused by too small aperture is avoided, and the flow guide effect is not influenced.

Further, as shown in fig. 8 and 9, a plurality of ports 11 for connecting liquid pipelines are formed in the splint 1, each port 11 is respectively communicated with two ends of the liquid inlet channel 24 and two ends of the liquid outlet channel 25 in a one-to-one correspondence manner, wherein the ports 11 at two ends of the liquid outlet channel 25 are both used for connecting pipelines for filtering clear liquid to store the filtered clear liquid; one end of the interface 11 at the two ends of the liquid inlet channel 24 is used for connecting a filtering stock solution pipeline, filtering stock solution is pumped into the filtering membrane package 2, and the other end of the interface can be used for connecting a return pipeline and cannot be recovered through the filtering stock solution, or the interface is pumped back into the liquid inlet channel 24 for secondary filtering or concentration.

Furthermore, two splint 1 pass through bolt 4 fixed connection, bolt 4 is located the outside of filtration membrane package 2, splint 1 are used for centre gripping filtration membrane package 2, and the filtering operation of being convenient for, bolt 4 fixed connection can adjust and slow down its pressfitting power, the installation of being convenient for simultaneously dismantlement. What filter membrane layer adopted in this filter equipment is microfiltration membrane, milipore filter or receive filter membrane, and this filtration membrane is thin, and filters the aperture and little, and during the filtration, the pressure differential between business turn over liquid is great, will lead to filter membrane package 2 internal pressure big, can bulge and influence filtration process. The splint 1 of filtering membrane package 2 both sides will play the centre gripping fixed action to filtering membrane package 2, keep filtering membrane package 2 shape, and the drainage net prevents that the too big influence of centre gripping dynamics from leading the flow layer simultaneously. The liquid inlet channel 24, the liquid outlet channel 25 and the backflow channel 26 penetrate through the clamping plate 1 and the filtering membrane package 2, so that liquid in the filtering membrane package 2 enters and exits through the interface 11 on the clamping plate 1, and liquid leakage is avoided.

Further, be equipped with silica gel gasket 5 between filtration membrane package 2 and the splint 1, can support filtration membrane package 2, form the isolation between filtration membrane package 2 and splint 1, guarantee to filter to laminate between membrane package 2 and the splint 1 and closely avoid the weeping.

To sum up, the embodiment of the utility model provides a filter membrane package and filter equipment thereof is equipped with rigidity plane spare 32 and rigidity curved surface spare 31 in leading the liquid net 3 in its filter membrane package 2, can form sandwich intermediate layer framework, leads flow layer 21 and goes out liquid and lead flow layer 22 and form effective support to the feed liquor, separates upper and lower adjacent filter membrane layer 23, guarantees that the runner is unblocked, improves filtration efficiency.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A filtering membrane package is characterized by comprising a liquid inlet flow guide layer, a liquid outlet flow guide layer and a filtering membrane layer, wherein the liquid inlet flow guide layer and the liquid outlet flow guide layer are arranged in a staggered and laminated mode in a first direction, the adjacent liquid inlet flow guide layer and the liquid outlet flow guide layer are communicated through the filtering membrane layer, a liquid inlet channel extending along the first direction and a liquid outlet channel extending along the first direction are formed in the filtering membrane package, the liquid inlet channel is communicated with the liquid inlet flow guide layer, and the liquid outlet channel is communicated with the liquid outlet flow guide layer; and a liquid guide net is arranged in the liquid inlet flow guide layer and/or the liquid outlet flow guide layer and comprises a rigid curved surface piece, and sieve pores are arranged on the rigid curved surface piece.

2. A filtration membrane package as recited in claim 1, wherein said inlet flow guide layer, said outlet flow guide layer, and said filtration membrane layer each extend in a second direction, wherein said first direction is perpendicular to said second direction.

3. A filtration membrane package according to claim 2, wherein said rigid, curved member is undulating in a direction extending in said second direction.

4. A filter membrane package as recited in claim 3, wherein said fluid directing web further comprises rigid planar members disposed on opposite sides of said rigid curved members, respectively, said rigid planar members being in the form of a screen, wherein peaks and valleys of said rigid curved members within the same fluid directing web abut said rigid planar members, respectively.

5. A filter membrane package as recited in claim 4, wherein the curved rigid member has a wave height in the range of 0.4 to 0.8mm.

6. The filtration membrane package of claim 4, wherein the rigid planar member has a mesh size of less than or equal to 200 mesh.

7. A filter membrane package as claimed in claim 6, wherein the rigid planar piece has a thickness of 0.1 to 0.5mm.

8. A filtration membrane package according to claim 1, wherein the mesh openings have a pore size of 0.5mm or greater.

9. A filtering device, comprising the filtering membrane package as claimed in any one of claims 1 to 8, further comprising two clamping plates arranged in parallel at intervals along the first direction, wherein the filtering membrane package is clamped between the two clamping plates, the clamping plates are provided with a plurality of interfaces for connecting liquid pipelines, and each interface is respectively communicated with two ends of the liquid inlet channel and two ends of the liquid outlet channel in a one-to-one correspondence manner.

10. A filter device as claimed in claim 9, wherein two of said clamping plates are fixedly connected by means of bolts, said bolts being located on the outside of said filter membrane pack.

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