CN109985524A - Filter and its manufacturing method - Google Patents
Filter and its manufacturing method Download PDFInfo
- Publication number
- CN109985524A CN109985524A CN201711500209.4A CN201711500209A CN109985524A CN 109985524 A CN109985524 A CN 109985524A CN 201711500209 A CN201711500209 A CN 201711500209A CN 109985524 A CN109985524 A CN 109985524A
- Authority
- CN
- China
- Prior art keywords
- lower cover
- filter
- upper cover
- support ring
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 12
- -1 polyethylene Polymers 0.000 claims description 49
- 239000012528 membrane Substances 0.000 claims description 32
- 229920000642 polymer Polymers 0.000 claims description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 18
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 9
- 239000004642 Polyimide Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 229920002530 polyetherether ketone Polymers 0.000 claims description 9
- 229920001721 polyimide Polymers 0.000 claims description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000002033 PVDF binder Substances 0.000 claims description 8
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 230000005251 gamma ray Effects 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 150000001336 alkenes Chemical class 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000003949 imides Chemical class 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 31
- 239000000463 material Substances 0.000 description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000013626 chemical specie Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- LZFMACRHJXVTIV-UHFFFAOYSA-N [F].C(=C)Cl Chemical compound [F].C(=C)Cl LZFMACRHJXVTIV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/04—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/08—Polysaccharides
- B01D71/10—Cellulose; Modified cellulose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/48—Polyesters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
It there is provided herein a kind of filter, it is enclosed including upper cover, lower cover and with the upper cover and the integrally formed packet of the lower cover, the edge part of the upper cover is contacted with the edge part of the lower cover, the upper cover and the lower cover common definition one can accommodate the cavity of filtering medium and liquid to be filtered, it is characterized in that, support ring is provided between the cover rim portion and the lower cover edge part, the support ring is surround by packet circle.A kind of method for manufacturing filter is additionally provided simultaneously.
Description
Technical field
The present invention relates to separation technology field, in particular to a kind of filter and the method for manufacturing filter.
Background technique
Dish-style filter be it is known, be widely used in life science, medical treatment or analysis field, especially be infused, inject
Equal application scenarios.
In general, dish-style filter is completed to treat the separation of filtrate using filtering medium.Dish-style filter is usually by one
A upper cover and a lower cover fasten to be formed.Object to be filtered usually exists with gaseous state or liquid form, comprising some undesirable
Ingredient, such as dust, sandstone, powder particle, microorganism can be by undesirable ingredients by selecting suitable filtering medium
It is separated with fluid, obtains filtrate.Filtering medium can be strainer, filter membrane, foam, active carbon etc..Filtering medium is generally fixed
Be formed by cavity in upper cover and lower cover, and be capped and lower lid on bead structures supported, to keep when in use
Shape is complete.
In practical application, it is often necessary to the filter membrane of different-thickness or unlike material, if in filter membrane thickness and filter
Cavity size mismatch, will cause problem.If excessively thin for filter membrane thickness opposing cavities, filter membrane is difficult to be sufficiently secured within sky
In chamber, segment fluid flow is easy to cause not filtered.Conversely, as thicker for filter membrane thickness opposing cavities, when assembling filter device and
When post forming manufactures filter packet circle, filter membrane is easy to be damaged by the rib on filter cover and lower lid, even results in brokenly
Damage, causes higher defect rate.Even if quality inspection is qualified, the service life of filter is also due to filter membrane encloses in production process in packet
It is reduced by external force.
Therefore, it is necessary to a kind of filters can adapt to the filter membrane that thickness is different, mechanical strength is different, to meet different realities
Border demand.
Summary of the invention
According to an aspect of the invention, there is provided a kind of filter, including upper cover, lower cover and with upper cover and lower cover one
Body formed packet circle, the edge part of upper cover are contacted with the edge part of lower cover, and upper cover can accommodate filtering with lower cover common definition one
The cavity of medium and liquid to be filtered, which is characterized in that support ring, support ring are provided between cover rim portion and lower cover edge part
It is surround by packet circle.
Preferably, support ring includes ring portion, and ring portion is sandwiched between cover rim portion and lower cover edge part.
Preferably, support ring includes outer edge, and outer edge closely connects perpendicular to ring portion, outer surface and the packet circle of outer edge
Touching.
Preferably, packet circle is made of secondary forming process.
Preferably, upper cover and/or lower cover are towards multiple ribs are respectively arranged on the part of cavity, for supporting filtering matchmaker
It is situated between.
Preferably, packet circle is by being selected from polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, poly- three
The manufacture of at least one of fluorine vinyl chloride, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, polyimides etc. polymer.
Preferably, cover rim portion is provided with prominent structure, and lower cover edge part is provided with groove, and prominent structure is embedded into ditch
In slot.
Preferably, support ring includes at least one polymer.
Preferably, polymer includes the polymer of gamma ray resistant.
Preferably, polymer is selected from polypropylene, polyethylene, ethylene/propene copolymer, polyvinyl chloride, polytetrafluoroethylene (PTFE), gathers
At least one of vinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, polyimides etc..
Preferably, filtering medium is glass fiber filter, nylon leaching film, polyethylene terephthalate filter membrane or poly- four
Vinyl fluoride filter membrane.
According to another aspect of the present invention, a kind of method for manufacturing filter is provided characterized by comprising
Upper cover, lower cover, filtering medium and support ring are provided；
Filtering medium is put into lower cover；
It will support ring set on lower lid；
Upper cover and lower cover are fastened, upper cover, filtering medium, support ring and lower cover is formed and assembles；And
Assembling is put into mold, make high molecular polymer around assembling post forming manufacture packet circle, packet circle with upper cover with
Lower cover is integrally formed.
Preferably, the edge part of upper cover is provided with prominent structure, and the edge part of lower cover is provided with groove, when upper cover is buckled in down
When covering, prominent structure is embedded into groove.
Preferably, in assembling, support ring is capped is surrounded with lower cover.
Preferably, high molecular polymer is selected from polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene (PTFE), gathers inclined difluoro second
At least one of alkene, polytrifluorochloroethylene, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, polyimides etc..
Filter provided by the invention has adjusted upper cover and lower cover by the way that a support ring is arranged between upper cover and lower cover
Between cavity height so that same set of filter is adapted to the filter membrane of different-thickness and material.In different application environments
Under, it is only necessary to the filter of different housing depths can be produced by replacing various sizes of support ring, without in addition designing mould
Tool or production line, save cost.Meanwhile filter housing depth is adjustable, thus alleviate to manufacture in post forming and wrap
To the damage of filter membrane during circle.
Detailed description of the invention
The above and other features of the present invention, property and advantage will be by with reference to the accompanying drawing and specific embodiment party
The description of formula and become readily apparent from.In different figures, identical label indicates identical component or element, in which:
Fig. 1 is a kind of schematic diagram of filter in the prior art；
Fig. 2 is the schematic diagram of filter according to some embodiments of the invention；
Fig. 3 is the partial cutaway schematic of support ring according to some embodiments of the invention；
Fig. 4 is the partial cutaway schematic of support ring according to some embodiments of the invention；
Fig. 5 is the partial cutaway schematic of support ring according to some embodiments of the invention；
Fig. 6 is the partial cutaway schematic of support ring according to some embodiments of the invention；And
Fig. 7 is the flow chart of the method for manufacture filter according to some embodiments of the invention.
Specific embodiment
The present invention is described in more detail below, it should be appreciated that the term is intended to describe purpose, rather than limits this hair
It is bright.
Unless otherwise indicated, the technical and scientific term used herein has and those skilled in the art of the invention
The identical meaning being generally understood.Contradiction if it exists, then be subject to definition provided by the present application.When with range, preferred scope
Or the form of preferred numerical upper limits and preferred numerical lower limits state some amount, concentration or other values or parameter when
It waits, it should be understood that be equivalent to and specifically disclose by by any pair of range limit or preferred value and any range lower limit or excellent
Any range that numerical value combines is selected, without considering whether the range specifically discloses.
Statement "comprising" or with its synonymous similar statement " comprising ", " containing " and " having " etc. be it is open, do not arrange
Except additional unlisted element, step or ingredient.State " Consists of " exclude unspecified any element, step or at
Point.Statement "consisting essentially of ..." how is limited in specified element, step or ingredient, in addition what is be optionally present will not be real
Element, step or the ingredient of the basic and new feature of theme claimed are influenced in matter.It should be appreciated that statement "comprising"
Cover statement "consisting essentially of ..." and " Consists of ".
Term as used herein " optional " " optionally " refers to that the event then described or situation may occur or can
It can not occur, which includes that the event or situation occurs and the event or situation does not occur.
Herein, directional terminology "upper" and "lower" are used to the position relation that description is located at fluid flow direction, without certainty
Express or imply the height relationships in vertical direction."upper" is used to refer to subrogate in " upstream " of flow direction；"lower" is used to refer to for fluid
" downstream " of flow direction.For example, upper cover is located at upstream, receives fluid and flow into；Lower cover is located at downstream, exports fluid by it.
Fig. 1 depicts a kind of structure of filter 100 in the prior art, and filter 100 includes upper cover 110, lower cover
120, it is formed with upper cover 110 and the integrally formed packet of lower cover 120 circle 130.There is an entrance 104, even with the external world in upper cover 110
It is logical, to receive fluid to be filtered.There is one outlet 108 on lower cover 120, be in communication with the outside, to export filtered fluid.On
Lid 110 and lower cover 120 can be engaged in respective edge part.Packet circle 130 is integrally formed with upper cover 110 and lower cover 120, is kept away
Exempt from filter 100 to burst and disintegrate under larger Fluid pressure.
Upper cover 110 and/or lower cover 120 can be manufactured by the inert polymer of chemical species.The edge part of upper cover 110
It is contacted with the edge part of lower cover 120.Upper cover 110 and lower cover 120 jointly define a cavity 140, to accommodate filtering medium 150
With fluid to be filtered.
Filtering medium 150 can be filter membrane, filter core etc., preferably filter membrane.Filter membrane can according to the specific application and filtering flow
It needs to select.Filter membrane can have one layer, can also there is the multilayer being stacked.Filtering medium 150 can be welded on
On lid 110 or lower cover 120.Alternatively, filtering medium 150 can be capped 110 and lower cover 120 clamped.
Cavity 140 can have various shapes.According to some embodiments, a kind of cavity 140 can have an approximation and be in
The middle part of short cylindrical body, to accommodate disc-shaped filter membrane.Cavity 140 is all in fluid communication with entrance 104, outlet 108.Fluid enters chamber
It is filtered after body 140 through filtering medium 150, then by 108 outflow of outlet.
To keep filtering medium 150 substantially stationary, at least one rib is each provided in upper cover 110 and lower cover 120,
It is respectively labeled as 114 and 124.Rib 114 and rib 124 (can be substantially parallel to entrance 104 to out flowing to along fluid
The direction of mouth 108) correspond to arrangement.When multiple ribs 114 and/or rib 124 is arranged, they can be in circular concentric, ray
Shape, grid-shaped or other can be realized filtering medium 150 it is substantially stationary arbitrary shape arrangement.Above-mentioned circular concentric, ray shape,
Grid-shaped or other shapes are substantially in a plane perpendicular to fluid flow direction.
When in use, filter 100 can be connect with other fluid delivery systems.Specifically, entrance 104 can pass through example
As the connector of female Luer receives fluid.Outlet 108 can export filtered fluid for example, by the connector of female Luer.
Fig. 2 is a kind of structure chart of filter 200 according to some embodiments of the present invention.Filter 200 includes upper cover
210, lower cover 220 and upper cover 210 and the integrally formed packet of lower cover 220 circle 230 and setting are in 210 edge part of upper cover and lower cover
Support ring 260 between 220 edge parts forms.There is an entrance 204 in upper cover 210, be in communication with the outside, it is to be filtered to receive
Fluid.There is one outlet 208 on lower cover 220, be in communication with the outside, to export filtered fluid.Upper cover 210 and lower cover 220
It can be engaged in respective edge part.Packet circle 230 is integrally formed with upper cover 210 and lower cover 220, and filter 200 is avoided to exist
It bursts and disintegrates under larger Fluid pressure.Support ring 260 is surround by packet circle 230.
Upper cover 210 and/or lower cover 220 can be by being molded one-pass molding.In some embodiments, upper cover 210 and lower cover
220 can independently be manufactured by different polymer materials.In further embodiments, upper cover 210 and lower cover 220 can be by same
The polymer material of sample manufactures.In order to make it possible that gamma-rays sterilizes, upper cover 210 and/or lower cover 220 can be penetrated by a kind of resistance to y
The polymers compositions of line manufactures.Preferably, upper cover 210 and lower cover 220 can be manufactured by the inert polymer of chemical species,
Such as polypropylene, polyethylene, ethylene/propene copolymer, polyvinyl chloride, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, poly- trifluoro chloroethene
Alkene, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, polyimides etc..It is further preferred that upper cover 210 and/or lower cover 220 can be by resistance to
The mixture manufacture of gamma-ray polyethylene, polypropylene, ethylene/propene copolymer or the above polymer.
In some embodiments, prominent structure can be set in the edge part of upper cover, and ditch has can be set in the edge part of lower cover
Slot.When upper cover and lower cover fasten, the protrusion structure of upper cover can be embedded into the groove of lower cover, with fastened to each other.
Packet circle 230 can be manufactured by post forming mode.For example, can be will be high by extruder for secondary forming process
Molecular material is squeezed out around upper cover and lower cover, is formed after cooling.High molecular material after sizing forms packet circle, with upper cover and lower cover
Form the overall structure of seamless connection.In order to make it possible that gamma-rays sterilizes, circle 230 is wrapped by a kind of polymer of gamma ray resistant
Made by component.Preferably, packet circle 230 can be manufactured by the inert polymer of chemical species, such as polypropylene, poly- second
Alkene, polyvinyl chloride, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, gathers ethylene/propene copolymer
Ether ketone, polyether-ether-ketone, polyimides etc..It is further preferred that packet circle 230 can be by the polyethylene, polypropylene, second of gamma ray resistant
The mixture of alkene/propylene copolymer or the above polymer is made.Packet circle 230 after manufacture can be with upper cover 210 and lower cover 220 1
It is body formed, improve the globality and intensity of filter 200.
The edge part of upper cover 210 is contacted with the edge part of lower cover 220.Upper cover 210 and lower cover 220 jointly define a chamber
Body 240, to accommodate filtering medium 250 and fluid to be filtered.The height of cavity 240 can be adjusted by support ring 260.
Cavity 240 can have various shapes.According to some embodiments, a kind of cavity 240 can have an approximation and be in
The middle part of short cylindrical body, to accommodate disc-shaped filter membrane.Cavity 240 is all in fluid communication with entrance 204, outlet 208.Fluid enters chamber
It is filtered after body 240 through filtering medium 250, then by 208 outflow of outlet.
Filtering medium 250 can be filter membrane or filter core etc., preferably filter membrane.Filter membrane can according to the specific application and filtering flow
It needs to select.For example, filter membrane can selected from glass fiber filter, nylon leaching film, polyethylene terephthalate filter membrane or
Teflon membrane filter.Filter membrane can have a variety of various sizes of holes, for example, can also have from about 0.2 μm to about 5 μm
There is different thickness, for example, from about 0.1mm to about 3mm.Filter membrane can have one layer, can also there is the multilayer being stacked.
Fluid to be filtered can be gas or liquid comprising impurity, dust or particulate material, for example, air, note
Penetrate liquid, biological reagent or chemical reagent etc..
Filtering medium 250 can be fixed on upper cover 210 and/or lower cover 220.Filtering medium 250 can be connected
Lid 210 or lower cover 220.Connection type can be known to technical staff, such as ultrasonic bonding, electric heating welding, adhesive
Bonding or mechanical connection etc..Alternatively, filtering medium 250 can be capped 210 and the edge part of lower cover 220 clamped.For example,
Clamping structure can be set in the edge part of upper cover 210 and lower cover 220, such as tooth form or terraced structure, filter matchmaker for clamping
Jie 250.Further to keep filtering medium 250 substantially stationary, at least one is each provided in upper cover 210 and lower cover 220
Rib is respectively labeled as 214 and 224.Rib 214 and rib 224 (can be substantially parallel to entrance flowing to along fluid
204 to outlet 208 direction) corresponding arrangement.When multiple ribs 214 and/or rib 224 is arranged, they can be in concentric circles
Shape, ray shape, grid-shaped or other can be realized filtering medium 250 it is substantially stationary arbitrary shape arrangement.Above-mentioned circular concentric,
Ray shape, grid-shaped or other shapes are substantially in a plane perpendicular to fluid flow direction.In some embodiments, may be used
Rib only is arranged in upper cover 210 or lower cover 220, to support filtering medium 250.Rib 214 and/or rib 224 and filtering
There can be certain interval between medium 250.
When in use, filter 200 can be connect with other fluid delivery systems.Specifically, entrance 204 can pass through example
As the connector of female Luer receives fluid.Outlet 208 can export filtered fluid for example, by the connector of female Luer.
Support ring 260 is used to adjust the height of cavity 240.Support ring 260 can be manufactured by injection molding process.Support ring
260 can be as made by least one polymer.In order to facilitate gamma-rays disinfection, above-mentioned polymer includes the polymerization of gamma ray resistant
Object.Preferably, the polymer of exemplary type includes polypropylene, polyethylene, ethylene/propene copolymer, polyvinyl chloride, polytetrafluoroethyl-ne
Alkene, polyvinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, polyimides etc..Further preferably
, polymer is one of polyethylene, polypropylene, ethylene/propene copolymer of gamma ray resistant or a variety of mixtures.
In some embodiments, the chemical composition of support ring is identical as upper cover 210 or lower cover 220.
In some embodiments, for the sake of safety and health, 260 not contact filtration medium 250 or to be filtered of support ring
Liquid.In the case where material safety, support ring 260 can be with contact filtration medium 250 or liquid to be filtered.
By the way that support ring 260 is added between 220 edge part of 210 edge part of upper cover and lower cover, the height of cavity 240 is increased
Degree, so that the more filter membranes of the thicker or number of plies may be accommodated in cavity 240, avoids rib 214 and/or rib 224
Extruding to filtering medium 250 alleviates the damage to filtering medium 250.Meanwhile the support ring 260 of addition will not reduce it is whole
The intensity or compressive property of a filter 200.
Support ring 260 can be there are many different shape and structure.Next, in conjunction with Fig. 3 to Fig. 6 to the structure of support ring
It is illustrated with shape.
Fig. 3 is a kind of partial cutaway view of support ring 300.Support ring 300 can be used as the support ring 260 in Fig. 2.
As shown in figure 3, support ring 300 includes a ring portion 310.
When in use, ring portion 310 is sandwiched in Fig. 2 between the edge part of upper cover 210 and the edge part of lower cover 220, is played
Such as the effect of washer.Specifically, the upper surface 312 of ring portion 310 contacts the edge part of upper cover 210, and lower surface 314 contacts lower cover
220 edge part.By thickness, internal diameter and the outer diameter of adjusting ring portion 310, the support ring 300 of different dimensions can be made,
To adapt to different filters and filtering medium.
In use, the edge part close contact of support ring 300 and packet circle 230, the edge part of upper cover 210, lower cover 220,
To keep the entire strictly sealing of filter 200, liquid leakage or extraneous contamination are avoided.In assembly, it is only necessary to by support ring 300
It is aligned with the edge part of lower cover 220, upper cover 210 is then buckled into lower cover 220 again, the assembling of three can be completed.
Fig. 4 is the partial cutaway view of another support ring 400.Support ring 400 can be used as the support ring 260 in Fig. 2.
As shown in figure 4, support ring 400 includes a ring portion 410 and an outer edge 420.Outer edge 420 is perpendicular to ring portion
410.Outer edge 420 is located at 410 lower section of ring portion.
When in use, ring portion 410 is sandwiched in Fig. 2 between the edge part of upper cover 210 and the edge part of lower cover 220.Specifically
Ground, the upper surface 412 of ring portion 410 contact the edge part of upper cover 210, and lower surface 414 contacts the edge part of lower cover 220.Outer edge
420 outer surface 424 is in close contact packet circle 230, the edge part close contact of inner surface 422 and lower cover 220.At this point, support ring
400 section is L-shaped.
In use, the edge part of support ring 400 and packet circle 230, the edge part of upper cover 210 and lower cover 220 is in close contact,
To keep the entire strictly sealing of filter 200, liquid leakage or extraneous contamination are avoided.Lower cover 220 is embedded in support ring 400, therefore
The two combines relatively firm.The anti-cracking property of filter entirety is good.In assembly, it is only necessary to which support ring 400 is buckled into lower cover 220
Edge part, upper cover 210 is then buckled into lower cover 220 again, the assembling of three can be completed.
Fig. 5 is the partial cutaway view of another support ring 500.Support ring 500 can be used as the support ring 260 in Fig. 2.
As shown in figure 5, support ring 500 includes a ring portion 510 and an outer edge 520.Outer edge 520 is perpendicular to ring portion
510.Outer edge 520 is located at 510 top of ring portion.
When in use, ring portion 510 is sandwiched in Fig. 2 between the edge part of upper cover 210 and the edge part of lower cover 220.Specifically
Ground, the upper surface 512 of ring portion 510 contact the edge part of upper cover 210, and lower surface 514 contacts the edge part of lower cover 220.Outer edge
520 outer surface 524 is in close contact packet circle 230, the edge part close contact of inner surface 522 and upper cover 210.At this point, support ring
500 section is L-shaped.
In use, the edge part of support ring 500 and packet circle 230, the edge part of upper cover 210 and lower cover 220 is in close contact,
To keep the entire strictly sealing of filter 200, liquid leakage or extraneous contamination are avoided.Upper cover 210 is embedded in support ring 500, therefore
The two combines relatively firm.The anti-cracking property of filter entirety is good.In assembly, it is only necessary to by support ring 500 and lower cover 220
Edge part alignment, then buckles into lower cover 220 for upper cover 210 again, the assembling of three can be completed.
Fig. 6 is the partial cutaway view of another support ring 600.Support ring 600 can be used as the support ring 260 in Fig. 2.Such as figure
Shown in 6, support ring 600 includes a ring portion 610 and an outer edge 620.Outer edge 620 is perpendicular to ring portion 610.Outer edge
620 across about 610 ring portion.
When in use, ring portion 610 is sandwiched in Fig. 2 between the edge part of upper cover 210 and the edge part of lower cover 220.Specifically
Ground, the upper surface 612 of ring portion 610 contact the edge part of upper cover 210, and lower surface 614 contacts the edge part of lower cover 220.Outer edge
620 inner surface 622 can be in close contact with the edge part of upper cover 210 and the edge part of lower cover 220 simultaneously.Outer surface 624 with
Packet circle 230 is in close contact.At this point, the section of support ring 600 is T-shaped.
In use, the edge part of support ring 600 and packet circle 230, the edge part of upper cover 210 and lower cover 220 is in close contact,
To keep the entire strictly sealing of filter 200, liquid leakage or extraneous contamination are avoided.Due to upper cover 210, lower cover 220 and support
Ring 600 is embedded in mutually, therefore triplicity is secured.The anti-cracking property of filter entirety is good.Meanwhile the shape of support ring 600 is set
Meter is also brought conveniently for assembly.It only needs to buckle into support ring 600 on the edge part of lower cover 220, then again detains upper cover 210
Enter, the assembling of three can be completed.
Fixed structure can be set in the support ring in Fig. 3 to 6.For example, in fig. 4 to fig. 6 support ring outer edge it is outer
Surface can have the structures such as one or more protrusions, recess or screw thread, to be combined with packet circle 230.The setting of fixed structure can be with
The combination dynamics for enhancing support ring and packet circle 230, increases the fastness of filter, improves anti-pressure ability.
The explanation of support ring is only exemplary above, is not intended to be limiting the possible shape of support ring or structure.
One of ordinary skill in the art will appreciate that above structure and arrangement are not required, other cloth also can be used
Set mode and structure, or newly-increased other arrangements or structure.
Fig. 7 is a kind of flow chart of the method 700 of manufacture filter according to some embodiments of the present invention.Although process
Method and step is illustrated using the arrow with direction and number in figure, it is to be understood that, except non-clearly stating, each step can be with
With the progress of any time sequence.
In step 720, upper cover, lower cover, filtering medium and support ring are provided.Upper cover, lower cover and support ring can be together
High molecular polymer a kind of or not of the same race passes through the manufacture of the means such as extrusion molding, injection molding.In some embodiments, matchmaker is filtered
Jie can be filter membrane, strainer or filter core.
In step 720, filtering medium is put into lower cover.In some embodiments, filtering medium can be connected down
It covers.Connection type can be known to technical staff, such as ultrasonic bonding, electric heating welding, adhesive bond or machine
Tool connection etc..Alternatively, filtering medium can be first placed in lower cover, it is capped when upper cover buckles into folded by the edge with lower cover
Tightly.
In step 730, by support ring set on lower lid.In some embodiments, support ring includes ring portion or ring portion and position
Outer edge above ring portion and perpendicular to ring portion.The ring portion of support ring can be aligned with lower cover.In some embodiments, it props up
Pushing out ring includes ring portion and is located at below ring portion and perpendicular to the outer edge of ring portion.It can make the two by support ring set on lower lid
It fastens.In further embodiments, support ring is comprising ring portion and across ring portion up and down and perpendicular to the outer edge of ring portion.At this point,
The two can also be made to fasten by support ring set on lower lid.
The sequence of step 720 and step 730 can exchange, for example, it is also possible to it is introduced into step 730, ring assembly to be supported
After lower cover, filtering medium is placed into.
In step 740, upper cover and lower cover are fastened, upper cover, filtering medium, support ring and lower cover is formed and assembles.One
In a little embodiments, prominent structure is can be set in the edge part of upper cover, and groove has can be set in the edge part of lower cover.When upper cover is under
When cover buckle is closed, the protrusion structure of upper cover can be embedded into the groove of lower cover, be formed by assembling with fixation.In assembling, branch
The edge part of edge part and lower cover that pushing out ring is capped is surrounded.In some embodiments, support ring not contact filtration medium.?
In assembling, the edge part of upper cover and the edge part of lower cover can clamp filtering medium jointly.For example, can be in the edge part of upper cover
Clamping structure is set with the edge part of lower cover, such as tooth form or terraced structure, for clamping filtering medium.
In step 750, assembling formed in step 740 is put into mold, makes high molecular polymer around assembling two
Secondary molding manufacture packet circle, packet circle are integrally formed with upper cover and lower cover.Preferably, high molecular polymer be selected from polypropylene, polyethylene,
Ethylene/propene copolymer, polyvinyl chloride, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, polyethers
At least one of ketone, polyether-ether-ketone, polyimides etc..For example, secondary forming process can be macromolecule through extruder
Material is squeezed out around upper cover and lower cover, is formed after cooling.High molecular material after sizing forms packet circle, is formed with upper cover and lower cover
The overall structure of seamless connection.Packet circle can be integrally formed with upper cover and lower cover, be prevented when filter bears biggish hydraulic
It bursts.
Other than above-mentioned steps, method 700 can also include additional step.For example, those skilled in the art can manage
Solution, method 700 can also include the steps that gamma-rays sterilizes or the step of pressure detecting, this will not be repeated here.
Due to having used support ring to adjust the height between upper cover and lower cover, filter provided by the invention can be accommodated not
The filter membrane of stack pile or material.The support ring of addition also improves anti-pressure ability, and the compression strength of final products is improved, when
Filter bears also to be difficult to burst when larger fluid pressure.Anti-pressure ability can be generally greater than 8.3MPa, preferably greater than 10MPa,
Further preferably greater than 13MPa.Meanwhile filter is also all excellent in fluid tightness and safety.
Although describing the present invention in an exemplary fashion, present invention is not limited to this.Any this field skill
Art personnel can make various changes, improve or modify, therefore guarantor of the invention without departing from the spirit and scope of the present invention
Shield range should be subject to claim.
Claims (15)
1. a kind of filter, including upper cover, lower cover and with the upper cover and the integrally formed packet circle of the lower cover, the upper cover
Edge part contacted with the edge part of the lower cover, the upper cover and the lower cover common definition one can accommodate filtering medium with
The cavity of liquid to be filtered, which is characterized in that it is provided with support ring between the cover rim portion and the lower cover edge part, it is described
Support ring is surround by packet circle.
2. filter as described in claim 1, which is characterized in that the support ring includes ring portion, and the ring portion is sandwiched in institute
It states between cover rim portion and the lower cover edge part.
3. filter as claimed in claim 2, which is characterized in that the support ring includes outer edge, and the outer edge is vertical
In the ring portion, the outer surface of the outer edge and packet circle are in close contact.
4. filter as described in claim 1, which is characterized in that the packet circle is made of secondary forming process.
5. filter as described in claim 1, which is characterized in that the upper cover and/or the lower cover are towards the cavity
Multiple ribs are respectively arranged on part, for supporting the filtering medium.
6. such as filter described in any one of claim 1 to 5, which is characterized in that the packet circle is by being selected from polyethylene, poly- third
Alkene, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, gathers polyvinyl chloride
The manufacture of at least one of acid imide etc. polymer.
7. such as filter described in any one of claim 1 to 5, which is characterized in that the cover rim portion is provided with prominent knot
Structure, the lower cover edge part are provided with groove, and the prominent structure is embedded into the groove.
8. the filter as described in any one of claims 1 to 5, which is characterized in that the support ring includes at least one poly-
Close object.
9. filter as claimed in claim 8, which is characterized in that the polymer includes the polymer of gamma ray resistant.
10. filter as claimed in claim 9, which is characterized in that the polymer is selected from polypropylene, polyethylene, ethylene/propylene
Alkene copolymer, polyvinyl chloride, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, polyether-ketone, polyethers ether
At least one of ketone, polyimides etc..
11. the filter as described in any one of claims 1 to 5, which is characterized in that the filtering medium is glass fibre filter
Film, nylon leaching film, polyethylene terephthalate filter membrane or teflon membrane filter.
12. a kind of method of filter of manufacture as described in any one of claims 1 to 11 characterized by comprising
Upper cover, lower cover, filtering medium and support ring are provided；
The filtering medium is put into the lower cover；
By the support ring set on the lower lid；
The upper cover and the lower cover are fastened, the upper cover, the filtering medium, the support ring and the lower cover are formed
Assembling；And
The assembling is put into mold, makes high molecular polymer around assembling post forming manufacture packet circle, the packet circle
It is integrally formed with the upper cover and the lower cover.
13. method as claimed in claim 12, which is characterized in that the edge part of the upper cover is provided with prominent structure, described
The edge part of lower cover is provided with groove, when the upper cover be buckled in it is described it is lower cover when, the prominent structure is embedded into the groove
In.
14. method as claimed in claim 12, which is characterized in that in the assembling, the support ring by the upper cover and
The lower cover is surrounded.
15. method as claimed in claim 12, which is characterized in that the high molecular polymer is selected from polyethylene, polypropylene, gathers
Vinyl chloride, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polytrifluorochloroethylene, polyphenylene sulfide, polyether-ketone, polyether-ether-ketone, polyimides
At least one of Deng.
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| CN201711500209.4A CN109985524B (en) | 2017-12-29 | 2017-12-29 | Filter and method for manufacturing the same |
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| CN201711500209.4A CN109985524B (en) | 2017-12-29 | 2017-12-29 | Filter and method for manufacturing the same |
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| RU57503U1 (en) * | 2006-03-27 | 2006-10-10 | Открытое акционерное общество Научно-исследовательский институт "Изотерм" | DEVICE FOR CLEANING AND STORAGE OF RADIOACTIVE WASTE |
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| Publication number | Publication date |
|---|---|
| CN109985524B (en) | 2023-11-03 |
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