CN221182326U - High stable in structure's folding filter core and filter - Google Patents

Abstract

The utility model discloses a folding filter element with high structure stability and a filter, the folding filter element comprises a filter element main body and end covers respectively arranged at two ends of the filter element main body, the filter element main body comprises a shell, a central rod and a folding filter membrane arranged between the shell and the central rod, the end part of the filter element main body and the end covers are sealed by gluing, flanges extending towards the end covers are respectively arranged at two ends of the shell, and a plurality of clamping grooves are formed in the tops of the flanges. The utility model aims to strengthen the connection strength of the filter element main body and the end cover, and effectively ensure the connection reliability and the tightness between the filter element main body and the end cover.

Description

High stable in structure's folding filter core and filter

Technical Field

The utility model belongs to the technical field of filter filtration, and particularly relates to a folding filter element with high structure stability and a filter.

Background

The membrane separation technology is a technology which depends on the pressure difference at two sides of a filtering membrane, takes the filtering membrane as a core component and realizes selective permeation of materials. The membrane separation technology has the advantages of low energy consumption, mild separation process, high efficiency and the like, and is widely applied to various fields. Depending on the form of the filtration membrane, the filtration membrane may be classified into a bag filter, a cartridge filter, a flat filter, and the like.

The bag filter is used as a common membrane filter, the core action component is an internal folding filter element, and after materials enter the bag filter, permeate liquid is obtained after filtration of the folding filter element, and the permeate liquid is discharged out of the bag filter. Generally, the folding filter element comprises a filter element shell, a folding filter membrane, a central rod and an end cover, and the integral sealing of the folding filter element is realized through the end cover, such as Chinese patent publication number: the utility model patent of CN204778958U discloses a polyether sulfone folding filter element. The folded filter element has high retention rate while exhibiting high flux in filtration, and is widely applied to the field of biological medicine. However, since the filter element main body and the end cover are fixed by using the adhesive, the end cover is easily deviated from the filter element main body in the production or use process, so that the connection reliability and the sealing performance between the end cover and the filter element main body are greatly affected.

Disclosure of utility model

The utility model provides a folding filter element and a filter with high structural stability, which strengthen the connection strength between a filter element main body and an end cover and effectively ensure the connection reliability and the tightness between the filter element main body and the end cover.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a high stable in structure's folding filter core, includes filter core main part and sets up the end cover at filter core main part both ends respectively, filter core main part includes shell, center pole and is located the folding filter membrane between shell and the center pole, the gluey is sealed between filter core main part's tip and the end cover, the both ends of shell are equipped with the flange that extends to the end cover respectively, the top of flange is equipped with a plurality of draw-in grooves. The flange is arranged at the end part of the shell, so that the contact area between the flange and the adhesive can be increased, the flow rate of the adhesive can be effectively improved by the clamping groove, and the adhesive on two sides of the shell is more uniformly distributed. The flange is matched with the clamping groove, so that the adhesive sealing effect of the adhesive on the shell and the end cover is improved, and the connection reliability and the tightness between the filter element main body and the end cover are improved.

Preferably, the radial width of the flange increases from the top of the flange to the bottom of the flange. The radial width of the flange is changed, so that the adhesive can flow along the surface of the flange, and bubbles can be more fully discharged in the sealing process of the shell and the end cover, thereby improving the sealing effect of the adhesive on the shell and the end cover.

Preferably, the height g of the flange is 1mm to 6mm. The flange with high suitability can ensure the effective filtering area of the folding filter element while improving the sealing effect.

Preferably, the clamping groove is provided with an opening facing the end cover, and the width a of the opening is 1.5mm to 25mm. The clamping groove with proper opening width can effectively improve the bonding effect of the adhesive between the shell and the end cover, thereby improving the sealing effect of the filter element.

Preferably, a side wall is arranged in the clamping groove, an included angle alpha between the side wall and a plane where the flange top is located is 45-120 degrees, and the included angle alpha is a plane included angle between the side wall and the plane where the flange top is located, or an included angle alpha is an included angle between a tangent plane of the side wall where the flange top is located at a junction of the plane where the flange top is located and the plane where the flange top is located. The proper included angle alpha can enable the adhesive to pass through the clamping groove rapidly and effectively, and meanwhile, the mechanical stability of the flange is ensured, and deformation or damage of the folded filter element after forming is avoided.

Preferably, the height h of the clamping groove is 0.5mm to 6mm. The highly suitable clamping groove can enable the adhesive to pass through the clamping groove rapidly and effectively, and meanwhile, the mechanical stability of the flange and the effective filtering area of the folding filter element are ensured.

Preferably, the number of the clamping grooves is 4 to 20.

Preferably, a protrusion matched with the end part of the shell is arranged on one side of the end cover facing the filter element main body, and comprises a limit column for limiting the bonding depth of the filter element main body and a flanging for preventing the adhesive from overflowing out of the shell. The protruding spacing post can be spacing to the axial position of filter core main part and end cover to reserve suitable adhesive flow space and sticky space, turn over and cooperate with spacing post and can hold back the adhesive in order to avoid the adhesive to spill.

Preferably, the width d of the limiting post is 0.5mm to 3mm. Therefore, the limiting column can prevent the protrusions from deforming while limiting the distance between the shell and the end cover.

Preferably, the end cover comprises an interface end cover and a closed end cover, wherein the interface end cover is provided with a retaining wall corresponding to the inner diameter position of the central rod, and the closed end cover is provided with a boss corresponding to the inner diameter position of the central rod. The retaining wall and the boss can effectively retain the adhesive, so that the overflow of the adhesive is avoided, and the filtering flow channel is influenced.

Preferably, an adhesive area for filling adhesive is arranged between the filter element main body and the end cover, and the height e of the adhesive area is 0.5mm to 8mm. The adhesive area with proper height can achieve better balance in ensuring tightness and mechanical stability, and can keep the integral structure of the folding filter element.

Preferably, the adhesive comprises one of epoxy resin, silica gel and polyurethane.

A filter comprising the high structural stability pleated filter insert.

The beneficial effects of the utility model are as follows: (1) The flange is arranged at the end part of the shell, so that a larger contact area is formed between the end part of the shell and the adhesive, and the sealing effect of the folding filter element is improved; (2) The radial width of the flange is increased from the top of the flange to the bottom of the flange, so that the fluidity of the adhesive is improved, bubbles can be more fully discharged, and the sealing effect of the adhesive on the shell and the end cover is improved; (3) The arrangement of the clamping grooves at the top of the bulges ensures that the adhesive has proper flow rate, so that the adhesive on the two sides of the shell is distributed more uniformly, and the adhesive is prevented from overflowing to the outer side of the folding filter element or the filter membrane due to too high flow rate; (4) The clamping groove effectively improves the sealing effect of the adhesive on the shell, and avoids the abrasion of the folding filter membrane due to torsion caused by insufficient sealing; (5) Through the setting of spacing post, restrict the distance between shell and the end cover to ensure the height of gluing the district, improve the sealed effect of folding filter core

Drawings

FIG. 1 is a schematic view of a construction of the present utility model;

FIG. 2 is a schematic view of the structure of the junction of the end cap and the housing of the present utility model;

FIG. 3 is a schematic view of the housing structure of the present utility model;

FIG. 4 is a schematic view of a card slot of the present utility model;

FIG. 5 is a schematic view of another structure of the card slot of the present utility model;

fig. 6 is a schematic view of a filter according to the present utility model.

In the figure: the filter cartridge comprises a shell 1, a filter cartridge body 10, a side wall 11, a plane 12 where the top of the flange is located, a flange 1a, a clamping groove 1b, a through hole 1c, a folding filter cartridge 100, a central rod 2, an end cover 3, an interface end cover 3a, a closed end cover 3b, a bulge 31, a limit column 311, a turnup 312, a retaining wall 32, a boss 33, a folding filter membrane 4, a filter housing 5, a liquid inlet 5a and a liquid outlet 5b.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description.

In the embodiment shown in fig. 1, a folding filter element with high structural stability comprises a filter element main body 10 and end covers 3 respectively arranged at two ends of the filter element main body 10, wherein the end parts of the filter element main body 10 are sealed with the end covers 3 by gluing. The cartridge body 10 comprises a housing 1, a central rod 2 and a pleated filter membrane 4 located between the housing 1 and the central rod 2. The folding filter membrane 4 comprises at least one layer of filter membrane, and a supporting layer is optionally arranged, wherein the filter membrane comprises any one or more of a cellulose filter membrane, a polyethersulfone filter membrane, a polyvinylidene fluoride filter membrane and a polyvinylidene fluoride filter membrane, and the supporting layer is one or more of a non-woven fabric and a screen.

As shown in fig. 1 and 2, the casing 1 has a hollow tubular shape, a through hole 1c for material flow is provided in the wall of the casing 1, and flanges 1a extending toward the end caps 3 are provided at both ends of the casing. As shown in fig. 3, the radial width of the flange 1a increases from the top of the flange 1a to the bottom of the flange 1a, so that the radial width b of the top of the flange 1a is smaller than the radial width c of the bottom of the flange 1a, and an inclined arrangement is formed at the outer surface of the flange 1a, and the adhesive can uniformly flow along the surface of the flange 1a during sealing, so that bubbles in the adhesive can be effectively discharged. The height g of the flange 1a is 1mm to 6mm, and when the height of the flange 1a is less than 1mm, the adhesive sealing effect between the housing 1 and the end cover 3 is poor; when the height of the flange 1a is greater than 6mm, an excessive height of the flange 1a may result in a decrease in the effective filtering area of the folded filter cartridge, and the housing 1 may also block part of the flow passage, resulting in a relative decrease in the flux of the folded filter cartridge.

As shown in fig. 1, the end cap 3 includes an interface end cap 3a and a closing end cap 3b, the interface end cap 3a is provided with a retaining wall 32 corresponding to the inner diameter position of the center rod 2, and the closing end cap 3b is provided with a boss 33 corresponding to the inner diameter position of the center rod 2. The retaining wall 32 and the boss 33 can retain the adhesive flowing towards the center rod 2, avoid overflow of the adhesive to block the filtering flow passage, and ensure smooth flow of the feed liquid.

As shown in fig. 1 and 3, a protrusion 31 matched with the end of the housing 1 is arranged on one side of the end cover 3, facing the filter element main body 10, the protrusion 31 comprises a limit column 311 and a flange 312, the limit column 311 is arranged on the inner side of the protrusion 31, the lower end of the limit column 311 is abutted against the end of the housing 1, so that the bonding depth of the filter element main body 10 is limited, and the flange 312 is arranged on the lower end of the protrusion 31 and used for preventing the adhesive from overflowing out of the housing 1. The width d of the limiting column 311 is 0.5mm to 3mm, when the width of the limiting column 311 is smaller than 0.5mm, the contact surface between the limiting column 311 and the shell 1 is smaller, and the risk that the shell 1 and the protrusion 31 are misplaced due to the fine deformation of the protrusion 31 exists; when the width of the limiting column 311 is larger than 3mm, the protrusion 31 protrudes out of the edge of the shell 1 too much, so that fluctuation occurs when materials flow through the protrusion 31, and the filtering stability is affected; when the width of the limiting column 311 is more than or equal to 0.5mm and less than or equal to 3mm, the limiting column 311 can prevent the bulge 31 from deforming while limiting the distance between the shell 1 and the end cover 3.

As shown in fig. 3, an adhesive area for filling adhesive is provided between the filter element body 10 and the end cover 3, and the adhesive includes one or more of epoxy resin, silica gel and polyurethane. The adhesive area height e is 0.5mm to 8mm. When e <0.5mm, substantial contact between the cartridge body 10 and the end cap 3 results in insufficient sealing effect; when e is more than 10mm, the height of the adhesive area is larger, and the filter dead volume of the filter element is increased although the adhesive area has higher tightness, and meanwhile, the mechanical stability of the adhesive area is reduced, so that the risk of breakage of the whole filter element is increased; when e is more than or equal to 0.5mm and less than or equal to 10mm, the adhesive area can keep the sealing performance of the folding filter element, and meanwhile, the mechanical stability of the adhesive area is larger, and the integral structure of the folding filter element can be kept.

As shown in fig. 2, a plurality of clamping grooves 1b are formed in the top of the flange 1a, and the number of the clamping grooves 1b is 4 to 20. The clamping groove 1b is provided with an opening facing the end cover 3, and as shown in fig. 4 and 5, the cross section of the clamping groove 1b can be triangular, rectangular, trapezoidal, arched, fan-shaped, truncated cone-shaped and the like, and the width a of the opening is 1.5mm to 25mm. When the opening width a is smaller than 1.5mm, the clamping groove 1b is too small to improve the sealing effect between the shell 1 and the adhesive; when the opening width a is larger than 25mm, the clamping groove 1b is oversized, so that the adhesive escapes from the shell 1, and a filtering flow channel is influenced; when a is more than or equal to 1.5mm and less than or equal to 25mm, the clamping groove 1b can effectively improve the bonding effect of the adhesive on the shell 1 and the end cover 3, so that the sealing effect of the filter element is improved.

As shown in fig. 4 and 5, a side wall 11 is disposed in the clamping groove 1b, and an included angle α between the side wall 11 and a plane 12 where the flange top is located is 45 to 120 °, where the included angle α is a plane included angle between the side wall 11 and the plane 12 where the flange top is located, or an included angle α is an included angle between a tangential plane of the side wall 11 at a junction of the plane 12 where the flange top is located and the plane 12 where the flange top is located. When the included angle alpha is smaller than 45 degrees, the stability of the flange 1a is reduced, and particularly after the shell 1 and the end cover 3 are connected in a sealing manner through an adhesive, the flange 1a is easy to deform or even break after the folding filter element is stressed, so that the folding filter element is broken; when the included angle alpha is larger than 120 degrees, the clamping groove 1b is too narrow, and the adhesive cannot quickly penetrate the clamping groove 1b, so that the clamping groove 1b has insufficient effect of improving the sealing effect; when the included angle alpha is 45-120 degrees, the adhesive can rapidly and effectively pass through the clamping groove 1b, and meanwhile, the flange 1a can be ensured to have enough mechanical stability, so that deformation or damage after the folding filter element is formed is avoided.

As shown in fig. 4 and 5, the height h of the card slot 1b is 0.5mm to 6mm. When the height of the clamping groove 1b is smaller than 0.5mm, the adhesive cannot rapidly pass through the clamping groove 1b, so that the sealing performance of the clamping groove 1b to the adhesive is not obviously improved; when the height of the clamping groove 1b is greater than 6mm, the clamping groove 1b is embedded into the main body of the shell 1, so that the mechanical stability of the shell 1 is reduced, and meanwhile, the height required to be sealed by the adhesive is too large, so that the effective filtering area of the folding filter element is damaged.

As shown in fig. 6, a filter comprises a filter housing 5, a folded filter core 100 with a high structural stability is arranged in the filter housing 5, a liquid inlet 5a and a liquid outlet 5b are arranged on the filter housing 5, and feed liquid enters the folded filter core 100 from the liquid inlet 5a, is discharged outwards from the liquid outlet 5b after being filtered, so that a filtering process is smoothly performed.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims (13)

1. The utility model provides a high stable in structure's folding filter core, includes filter core main part (10) and sets up the end cover at filter core main part (10) both ends respectively, filter core main part (10) include shell (1), well core rod (2) and be located folding filter membrane (4) between shell (1) and well core rod (2), a serial communication port, the tip of filter core main part (10) and between end cover (3) are glued sealedly, the both ends of shell (1) are equipped with flange (1 a) to end cover (3) extension respectively the top of flange (1 a) is equipped with a plurality of draw-in grooves (1 b).

2. A highly structurally stable folded filter cartridge according to claim 1, characterized in that the radial width of the flange (1 a) increases from the top of the flange (1 a) to the bottom of the flange (1 a).

3. A highly structurally stable folded filter cartridge according to claim 1, characterized in that the height g of the flange (1 a) is 1mm to 6mm.

4. A folded filter cartridge of high structural stability according to claim 1, characterized in that the clamping groove (1 b) is provided with an opening towards the end cap (3), the width a of the opening being 1.5mm to 25mm.

5. The folding filter element with high structural stability according to claim 1, wherein a side wall (11) is arranged in the clamping groove (1 b), an included angle α between the side wall (11) and a plane (12) where the flange top is located is 45 to 120 °, and the included angle α is a plane included angle between the side wall (11) and the plane (12) where the flange top is located, or an included angle α is an included angle between a tangent plane of the side wall (11) where the flange top is located at a junction of the plane (12) where the flange top is located and the plane (12) where the flange top is located.

6. A folded filter cartridge of high structural stability according to claim 1, characterized in that the height h of the clamping groove (1 b) is 0.5mm to 6mm.

7. A folded filter cartridge of high structural stability according to claim 1, characterized in that the number of said clamping grooves (1 b) is 4 to 20.

8. A folded filter cartridge of high structural stability according to claim 1, characterized in that the side of the end cap (3) facing the cartridge body (10) is provided with a projection (31) cooperating with the end of the housing (1), said projection (31) comprising a limit post (311) limiting the bonding depth of the cartridge body (10), and a flange (312) for preventing the adhesive from spilling out of the housing (1).

9. A folded filter cartridge of high structural stability according to claim 8, characterized in that the width d of the restraining post (311) is 0.5mm to 3mm.

10. A folded filter cartridge of high structural stability according to claim 1, wherein the end cap (3) comprises an interface end cap (3 a) and a closing end cap (3 b), the interface end cap (3 a) being provided with a retaining wall (32) corresponding to the inner diameter position of the central rod (2), the closing end cap (3 b) being provided with a boss (33) corresponding to the inner diameter position of the central rod (2).

11. A folded filter cartridge of high structural stability according to claim 1, characterized in that an adhesive zone for filling adhesive is provided between the cartridge body (10) and the end cap (3), the adhesive zone height e being 0.5mm to 8mm.

12. The high structural stability pleated filter insert of claim 11 wherein said adhesive comprises one of epoxy, silicone and polyurethane.

13. A filter, characterized in that it comprises a folded filter cartridge (100) of high structural stability according to any one of claims 1 to 12.