CN1832795A - Simplified filter device - Google Patents
Simplified filter device Download PDFInfo
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- CN1832795A CN1832795A CN 200480022563 CN200480022563A CN1832795A CN 1832795 A CN1832795 A CN 1832795A CN 200480022563 CN200480022563 CN 200480022563 CN 200480022563 A CN200480022563 A CN 200480022563A CN 1832795 A CN1832795 A CN 1832795A
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- filter
- head
- bowl bodies
- diffusion barrier
- bowl
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A flow passage for passing a raw liquid to be processed therethrough that is used to test a separation membrane is of the simplest inline type (so-called 'inline' type) and is the simplest in construction. In spite thereof, the separation membrane through which the raw liquid is going to be filtered is mounted in a direction substantially perpendicular to the flow passage. In view of this, the object of the present invention is to provide a filtering device with high filtering efficiency, which is used to test the membrane performance of this separation membrane and which enables exchanging its membrane in an easily removably attachable and quick way. The simplified type filtering device that includes a bowl 1 having a discharging port 13 on one side thereof and having on the other side thereof an opening portion 2 in which the separation membrane is loaded, the separation membrane for filtering the raw liquid therethrough, a filter plate 5 by which this separation membrane is fixed to the bowl 1 and which has opening portions for passing the raw liquid or a filtered liquid therethrough, a head 3 having on one side thereof a convex pressing portion 23 that presses the filter plate 5 from one side to prevent the filtered liquid from being leaked and having on the other side thereof a raw liquid supplying opening 15, and means that fastens the head 3 onto the bowl 1 so that the head may be pressed against the bowl 1, such as female and male screws 19, 21 provided with respect to the head 3 and the bowl 1 and screw-engaged with each other, or a separate locking nut 33.
Description
Technical field
The present invention relates to a kind of filter, it can be used as filter and is used for filtering, separating or refine gel and other particle etc. from liquid, can test the film properties of filter membrane, diffusion barrier or the purification film that this filter uses (below be called " diffusion barrier ") simply.
Filter of the present invention is widely used in the filtration small amount of matter so that research and develop, the exploitation resist, developing drugs, make beer, make medicine, in making semiconductor processes or other field purify photoresist agent solution.
Background technology
There is very big demand in the filter that a small amount of raw material liq of supplying is filtered, separates and purifies.And, whether be suitable for most the liquid of handling in order to judge diffusion barrier, need use diffusion barrier that the liquid of required processing is handled by reality, realize film properties evaluation to diffusion barrier.Be used for filtering, separate and the filter of a small amount of required treat liquid of purifying,, needing to use a lot of diffusion barriers when carrying out evaluation test when determining that used diffusion barrier is whether best.But, in traditional simplified filter device, once can only use or test only diffusion barrier.Use or estimate one or more arbitrarily during the diffusion barrier of combination for needs, need use a plurality of filters continuously, perhaps replace every type of test diffusion barrier one by one.Therefore, the result who needs overall merit to obtain.Correspondingly, in this case, need plenty of time and manpower assembling diffusion barrier or replace to another kind.The time cycle that whole operation time and evaluation time need be grown.
Therefore the type of testing many diffusion barriers is simultaneously proposed.For this diffusion barrier testing arrangement of testing many diffusion barriers simultaneously, for example, disclosed a kind of among the open 11-137973 of Japanese patent application.
The diffusion barrier testing arrangement of describing in above-mentioned patent application is arranged through the unit that four cylindrical peace are housed can once test many diffusion barriers.These unit stacked vertical together.Between each unit, first to the 3rd dissimilar diffusion barriers is housed one by one.Handled raw material liq is fed to each diffusion barrier concurrently, thereby once tests the film properties of the first to the 33 diffusion barrier.But problem wherein is use in series connection under the situation of many diffusion barriers, even this device can not be estimated them.And, use in series connection under the situation of many diffusion barriers, need series connection to use a plurality of filters.
Patent documentation 1: the open 11-137973 of Japanese patent application
Patent documentation 2: the open 2002-046651 of Japanese patent application
Summary of the invention
The problem to be solved in the present invention
But, conventional apparatus for the open 11-137973 disclosure of Japanese patent application, though can not clear understanding be arranged to this technology owing to the content that does not have open relevant shell on every side and relevant connection, but when considering the general structure of this device, its structure is complicated and is difficult to miniaturization.In addition, because institute's liquid to be processed is parallel processing, so can test same type or many dissimilar films clearly simultaneously.But, when the same type of attempting to use arranged in series or many dissimilar films improve filtering accuracies, can not obtain resultant effect.
And the open 2002-046651 of Japanese patent application has disclosed the invention of the shortcoming of improving above-mentioned conventional example.But according to this invention, though when replacing the diffusion barrier installed, replace and the dismounting diffusion barrier can become quite easily and fast, complex structure and need the considerable time to replace many films is for example prepared film is installed to time quantum on the device.Based on this reason, under the situation of replacing individual film, problem need to be cycle considerable time to replace.And, when the same type of testing arranged in series or dissimilar many diffusion barriers, can not assess the resultant effect that uses them to obtain.And, use under their situation in the diffusion barrier or the series connection of assessment arranged in series, need to use a plurality of independent filters.
The present invention proposes considering under the situation of the problems referred to above, its objective is provides a kind of simplification filter that is used for diffusion barrier, though it is simple in structure, but when needs carry out the film test and filter on a small quantity, make filter to carry out simple, and even under the situation of one or more diffusion barriers, make its assembling simple, easily it is tested, and do not need to carry out complicated assembling and increase associated components or the like; In addition, make the replacement of diffusion barrier and dismounting easy and quick.Purpose of the present invention is particularly in providing a kind of filter, and it can assess the same type of use arranged in series or the resultant effect that many dissimilar diffusion barriers produce.
The means of dealing with problems
To achieve these goals, the present invention has following structure:
(1) the invention provides a kind of simplified filter device, it comprises bowl bodies, and a side of described bowl bodies has outlet, and opposite side has the opening portion that communicates with outlet; At least one filter, described filter has the diffusion barrier that remains on or be fixed to the upper, diffusion barrier makes original untreated liquid by its filtration, and filter has original untreated liquid or the hole of filter liquide from wherein flowing through, and described at least one filter is contained in the opening portion of bowl bodies; Head, described head has the protrusion pressures partially in the one side, protrudes pressures partially and pressurizes described filter to prevent the described leakage of filter liquide from the one side, has the original liquid supply opening that is untreated at its opposite side; And with the pressue device of described head to described bowl bodies pressurization.
(2) in a preferred embodiment, in above-mentioned (1) bar, bowl bodies and head have corresponding internal thread and external screw thread respectively, and bowl bodies and head be screw-threaded engagement each other, and, realize the sealing of assembling and hermetic seal and liquid by rotating bowl bodies and head relative to each other.
(3) in a further advantageous embodiment, above-mentioned (1) or (2) bar in, wherein keep or the load mode that is fixed with the filter of described diffusion barrier is that one of more than one described filter is stacked on another.Therefore, according to using same type or dissimilar a plurality of diffusion barriers, can filter, separate or purify, assess test.
(4) in another embodiment, the invention provides a kind of simplified filter device, it comprises bowl bodies, and a side of described bowl bodies has outlet, and opposite side has the opening portion that communicates with outlet; At least one filter, described filter has the diffusion barrier that remains on or be fixed to the upper, diffusion barrier makes original untreated liquid by its filtration, and filter has original untreated liquid or the hole of filter liquide from wherein flowing through, and described at least one filter is contained in the opening portion of bowl bodies; Head, described head has the protrusion pressures partially in the one side, protrudes pressures partially and pressurizes described filter to prevent the described leakage of filter liquide from the one side, has the original liquid supply opening that is untreated at its opposite side; And along them axially with the locking nut of head to bowl bodies pressurization.
(5) in a further advantageous embodiment, under (4) bar, in described bowl bodies and the described locking nut each has the threaded portion that is engaged with each other disposed thereon, and by relatively rotating with respect to each other they each, can assemble described device and pressurization vertically.
(6) in a further advantageous embodiment, above-mentioned (4) or (5) bar under, the load mode that wherein keeps or be fixed with the filter of described diffusion barrier is that one of more than one described filter is stacked on another, thereby can use same type or dissimilar a plurality of diffusion barriers.
(7) in a further advantageous embodiment, tighten action easily, under the situation of above-mentioned (2) bar, on the outer surface of the outer surface of bowl bodies and head, form tabular projection, can be used as that finger is controlled device or instrument is controlled device in order to make screw thread.
(8) under the situation of (5) bar, on the outer surface of bowl bodies, form tabular projection, control device or instrument is controlled device as finger.
(9) (4) or the situation of (5) bar under, locking nut has the handle that finger is controlled in three positions of its neighboring part.
(10) in addition, (1) or the situation of (4) bar under, filter has the circumferential protrusions of predetermined altitude on its bottom surface, on the other hand, the inner bottom part of bowl bodies opening portion has the circumferential recess of holding described circumferential protrusions, thereby filter is pressed to bowl bodies, realizes sealing thus.
(11) and, (1) or the situation of (4) bar under, the pressure ring that has at least one concentric projection in its bottom side is arranged on the upper surface of described at least one filter, preferably many (being three in this embodiment) be projection with one heart; Upper surface one side at filter has at upwardly extending plane surface of whole week; And the concentric projection of pressure ring is pressed on the plane surface of filter, thereby realizes sealing.
(12) and, in (11), described pressure ring face side thereon has plane surface; And the circumferential protrusions with predetermined altitude is crushed on described second plane surface, circumferential protrusions is set in place on the lower face side of the filter of described pressure ring upside, thereby realize sealing, perhaps the protrusion pressures partially of head is pressed on the described plane surface by O shape circle, thereby realizes sealing.
And described pressure ring side thereon has periphery edge part around described plane surface; And described filter thereon side have periphery edge part around described plane surface; Thus, when recess is inserted in the pressurization of filter that described pressure ring is packed into, make described these periphery edge part fusions each other.Therefore, filter can be connected with pressure ring and integrate, make the assembling/dismounting of filter housing become easy.
(13) in addition, (1) or (4) bar in, finger engagement protuberance is set in the neighboring of filter; And corresponding therewith, described bowl bodies has the direction recess that is used to point the engagement protuberance.
The invention effect
From top description as can be seen, according to the described the present invention of above-mentioned (1) bar, the flow channel of processed raw material liq is the simplest linear pattern (so-called " in-line arrangement "), so structure is the simplest.However, be contained in the direction that is basically perpendicular to flow channel owing to be used to carry out the diffusion barrier of filtration, so the filter efficiency height; In addition, can easily assemble/dismantle the diffusion barrier that is used to test the diffusion barrier performance, and also can change fast.
Plain filter is unless special the processing can not be cleaned because its mechanical strength is weak.But, in practical application, used the cartridge filter that is cleaned by dissimilar medicines so far such as exploitation anticorrodent and developing drugs.The filter that specification is made according to the present invention, wherein diffusion barrier supports by modes such as fusions, can take out and clean after it uses, and becomes and can reuse.
And, according to the described the present invention of above-mentioned (2) bar,, therefore can prevent the leakage and the mixing of filter liquide because bowl bodies is in the same place by the fastening force secure seal of threaded portion with head, the replacing of diffusion barrier and dismounting are carried out easily fast.
And, according to the described the present invention of above-mentioned (3) bar,, therefore can separate, and therefrom can obtain what effect by using many films to confirm simply under which kind of mode, to carry out owing to carry out the test of many films easily.In addition, also can carry out the replacing and the dismounting/assembling of diffusion barrier easily and apace.In other words, even can easily assemble a plurality of diffusion barriers of one type, or polytype a plurality of diffusion barrier therefore, can carry out the test of diffusion barrier easily, the test of the diffusion barrier that has perhaps changed combination.
And, according to the described the present invention of above-mentioned (4) bar, can more effectively carry out based on the sealing of using filter, bowl bodies and head owing to increase latch fitting, therefore realize high efficiency filtration.In the dismounting/assembling of filter and aspect the convenience when changing, its effect is identical with the invention described above.
And, according to the described the present invention of above-mentioned (5) bar,, more particularly, use locking nut for latch fitting, use common screw thread to realize efficiently based on the sealing of using filter, bowl bodies and head.In the dismounting/assembling of filter and aspect the convenience when changing, realize the identical effect of effect that is realized with above-mentioned other the present invention.
And, above-mentioned (4) or (5) bar under, according to the described the present invention of above-mentioned (6) bar, pile up a plurality of filters by a folded ground, can will need large scale and multistage filter to make a simple structure.Consequently, for example, change easily and carry out order of filtering or the like, thereby can more effectively filter.In the dismounting/assembling of filter and aspect the convenience when changing, realize the identical effect of effect that is realized with above-mentioned other the present invention.Therefore,,, promptly needing under the situation of low capacity under the situation of carrying out test filtering and other filtration with many films according to the present invention, can be simply and easily use this one side of the present invention.
Under above-mentioned (2) bar, in (7) described preferred embodiment, by respectively the outer surface of bowl bodies and outer surface on form tabular projection, each described projection can be used as that finger is controlled device or instrument is controlled device.Therefore, fastening operation becomes easy.
Under the mode of above-mentioned (8) bar, provide tabular projection by outer surface in bowl bodies, described projection can be used as finger and controls device or instrument is controlled device.
As the mode of above-mentioned (9) bar, on each position of three positions of locking nut peripheral part, have the handle that the finger-like finger is controlled, the dismounting/assembling of head becomes and is more prone to.
Under the mode of (10) bar, filter has the circumferential protrusions of predetermined altitude on its bottom surface, and forms circumferential recess at the inner bottom part of bowl bodies opening portion, and described circumferential protrusions is mounted in it.By filter is pressed to bowl bodies, when pressurizeing, do not need to use O shape circle to be sealed fully at every turn.Therefore, improve operating efficiency, reduce cost.
In the described mode of above-mentioned (11) bar, pressure ring has at least one concentric projection in its lower face side, preferably a plurality of concentric projections, and described pressure ring is positioned at the upper surface of described at least one filter.Upper surface side at filter has at upwardly extending plane surface of whole week, and the concentric projection of pressure ring is crushed on the plane surface of filter, thereby realizes sealing.Based on this reason, even comprise in use under the situation of the composite separating film that can not be fused to the diffusion barrier on the filter, can use pressure ring to seal.When needing sealing, can not use O shape circle to realize the abundant sealing of diffusion barrier peripheral part at every turn.Therefore, improve operating efficiency, reduce cost.
Under the described mode of above-mentioned (12) bar, the surperficial thereon side of described pressure ring has plane surface.On the lower surface of the filter that is in this plane surface upside, the circumferential protrusions with predetermined altitude is pressed on this plane surface, thereby realizes sealing.Therefore, a plurality of filters are overlaped and do not use O shape circle (still, for the pressure ring that is used in topmost, the protrusion pressures partially of head at this on the one hand by the pressurization of O shape circle, thereby realize sealing).
And described pressure ring has the periphery edge part around the described plane surface of its upper surface, and described filter has the periphery edge part around the described plane surface of its upper surface simultaneously.Thus, when recess is inserted in the pressurization of filter that described pressure ring is packed into, the fusion each other of periphery edge part.Therefore, by the connection between filter and the pressure ring and integrated, can seal and keep the diffusion barrier of fusible not even to filter.
In the described embodiment of (13) bar, also (1) or (4) bar under, form finger engagement protuberance at the excircle of filter, and corresponding with it be in bowl bodies, to have the direction recess of finger engagement protuberance.But,, be isolated from each other by above-mentioned sealing device realization owing to make raw material liq and the flow channel that flows through of filter liquide and the space of flow channel outside.Therefore, can increase operating efficiency, pollute the outside and needn't worry about.
Description of drawings
Fig. 1 is the plane of the filter of first embodiment of the invention;
Fig. 2 is the cutaway view of filter;
Fig. 3 is the bottom view of filter;
Fig. 4 is the cutaway view that a kind of form of filter is used in expression;
Fig. 5 is the plane of the general filter of two embodiment of the present invention;
Fig. 6 is the cutaway view along the line VI-VI of Fig. 5 filter;
Fig. 7 is the part enlarged drawing of Fig. 2 filter;
Fig. 8 is the plane of the filter of second embodiment of the invention;
Fig. 9 is the cutaway view of filter;
Figure 10 is the bottom view of filter;
Figure 11 is the cutaway view that a kind of form of filter is used in expression;
Figure 12 is the part enlarged drawing of filter;
Figure 13 is the plane of the head of filter as an independent integral body;
Figure 14 is the cutaway view of the head of filter as an independent integral body;
Figure 15 is the perspective view of the filter of third embodiment of the invention;
Figure 16 is the cutaway view along the line XVI-XVI of filter;
Figure 17 is the plane of the filter that uses in the filter;
Figure 18 is the cutaway view along the line XVIII-XVIII of Figure 17 filter;
Figure 19 is the bottom view of filter;
Figure 20 is the plane of pressure ring;
Figure 21 is the cutaway view along the line XXI-XXI of Figure 20 pressure ring;
Figure 22 is and the similar cutaway view of Figure 16, represents the filter of the 3rd embodiment, wherein uses two filters 5; And
Figure 23 is the phantom of the filter unit of representing filter, diffusion barrier and pressure ring wherein integrated.
The explanation of reference number
1 bowl bodies
2 opening portions
3 heads
5 filters
7 cylindrical inner wall
9 tabular projections
11 tabular projections
13 filter liquide outlets
15 raw material liq supply openings
16O shape circle
17 protuberances
18 direction recess
19 external screw threads
20O shape circle
21 internal threads
23 protrude pressures partially
25 diffusion barriers
26 grooves
More than 27 hole
29 circumferential recess
31 recesses
33 locking nuts
35 internal threads
37 external screw threads
39 agency parts
41 shoulders
43 spaces
45 protuberances
51 gas vents
53 handles
55 pressure rings
57 circumferential recess
59 circumferential protrusions
61 handles
63 finger engagement protuberances
65 direction recess
67 directed protuberances
69 step parts
70 periphery edge parts
71 plane surfaces
75 concentric projections
77 elastic packing parts
79 periphery edge parts
81 peripheral part bottom surfaces
83 projecting edges
The specific embodiment
Though will explain the present invention according to its preferred embodiment below, the material of conventional known type can be therein as the material by its use.
For diffusion barrier, can adopt the diffusion barrier of any Small Holes, as an example such as PTFE, PE, PFA, PVDF, PSE etc.
For keeping diffusion barrier or be fused to the filter (support) of diffusion barrier, resin material such as PP, PE, the PFA or the like that can adopt any type are as an example.
For shell, can use the high rigidity plastics or the metal of conventional known.
First embodiment
Explain the reduced form filter of first embodiment of the invention below with reference to Fig. 1 to 7.Vertical relation between the each several part of every secondary figure depends on the facility of relevant explanation.That is, its vertical relation can be put upside down, and perhaps can be arranged to level, perhaps the raw material liq supply opening and the filter liquide outlet can put upside down each other.
When referring to Fig. 1 to 6 and when being Fig. 7 of part enlarged drawing of Fig. 2, filter comprises bowl bodies (or goblet) 1, has outlet 13 at its lower surface, filter liquide is discharged by outlet, the surface has opening portion (or recess) 2 thereon, one or more filters 5 insert opening portions 2, and by the bottom support of opening portion; Filter also comprises head 3, head 3 has the protrusion pressures partially 23 of shape picture ring, pressures partially 23 pressurizes the peripheral part of filter 5 towards the opening portion bottom, so that hermetic seal or liquid seal the peripheral part of filter 5 hermetically, head 3 also has raw material liq supply opening 15.As what describe below, in filter 5, supporting diffusion barrier 25 (referring to Fig. 5 or 6).
The opening portion 2 of bowl bodies 1 has cylindrical inner wall 7 and bottom.The bottom has the core that slowly converges towards outlet 13 with the funnel form downwards, and has the ring-shaped flat peripheral part that supports filter 5 peripheral parts.Have circumferential recess at this flat peripheral part, the elastic O-ring 16 that is used to seal wherein is housed.As shown in Figure 2, form internal thread 21, external screw thread 19 screw-threaded engagement on the external peripheral surface of it and head 3 at the upper portion of the cylindrical inner wall 7 of bowl bodies 1.In addition, the relative position in the diameter both sides of cylindrical inner wall 7 forms vertically-guided groove (perpendicular grooves) 18,18, and the protuberance 17,17 of filter 5 will be inserted in wherein.As shown in Figure 3, form tabular projection 9 in the bottom side of bowl bodies 1, when head 3 is fastened to bowl bodies 1 or during from bowl bodies 1 dismounting head 3 as the grip portion of finger or instrument.
Shown in Fig. 5 or 6, filter 5 has a plurality of holes 27.Filter 5 has recess 31, maintains diffusion barrier 25 (shown in chain-dotted line) in its surface.In this case, diffusion barrier 25 preferably is fixed on the surface of filter 5 by heat fused.Under the situation of using a plurality of filters, the flow distribution passage that recess 31 forms diffusion barrier 25 is inserted in pressurization.In addition, the surface of inserting recess 31 in pressurization radially forms a plurality of grooves 26 by a plurality of holes 27, perhaps with the screen cloth form, thereby increases effective filter table area.Peripheral part at filter 5 has circumferential recess 29, and the O shape circle 20 that is used to seal is contained in wherein.Do like this, as shown in Figure 2, can make the outer peripheral portion of one or more filters 5 divide between and these neighboring parts realize between the pressures partially 23 sealing with protruding.
Relative two positions in the diameter both sides of filter 5 form protuberance 17 and 17, can insert the direction recess 18 of bowl bodies 1.Thereby filter 5 not only is positioned at subscribes the position, and when fastening head 3, can prevent the rotation of filter 5.
Filtering, before separation and the purification operations or before assessment and measuring filter membrane, O shape circle 16 be inserted in the bottom surface circumferential recess of bowl bodies 1 opening portion 2; Subsequently, by utilizing protuberance 17 and perpendicular grooves 18 one or more filters 5 that are in alignment with each other, wherein O shape circle 20 is inserted in the circumferential recess 29, and then filter 5 is put into the opening portion 2 of bowl bodies 1.Subsequently, the external screw thread 19 of head 3 external peripheral surfaces and internal thread 21 screw-threaded engagement of bowl bodies 1.Then, utilize finger or instrument to rotate tabular projection 11, head 3 is fastened in the opening portion 2 of bowl bodies 1.As a result, the protrusion pressures partially 23 of head 3 is oppressed the peripheral part of filters 5, thereby obtains the sealing of liquid sealing and hermetic seal by the circle of the O shape between these associated components 16 and 20.At this moment, as shown in Figure 2, a plurality of filters 5 fit together, perhaps as shown in Figure 4, and in monolithic filter 5 is assembled in.Like this, filter of the present invention has high flexibility structure, according to required purpose, can assemble independent or a plurality of filters 5.
In addition, because simple in structure according to the filter of this embodiment, its advantage is its low cost of manufacture.But, because friction slip appears between the protrusion pressures partially 23 of head 3 and O shape circle 20, so the inconvenience of slight extent is that need carefully carry out screw thread tightens.This will improve in next embodiment.
Second embodiment
Explain the second embodiment of the present invention below with reference to Fig. 8 to 14.Though this embodiment is than the filter complexity of a last embodiment, its advantage is to obtain easily hermetic seal and liquid sealing.In each these correlation diagram, those members corresponding with the first embodiment filter use identical reference number.
Filter according to this embodiment comprises bowl bodies 1, lower surface in bowl bodies 1 has outlet 13, liquid after the filtration is discharged by outlet 13, and bowl bodies 1 surface thereon has opening portion or recess 2, one or more filters 5 insert opening portions 2, and by the bottom support of opening portion; Filter also comprises head 3, head 3 has the protrusion pressures partially 23 of shape picture ring, head 3 pressurizes the peripheral part of filter 5 towards the opening portion bottom, so that hermetic seal or liquid seal the peripheral part of filter 5 hermetically, it also has raw material liq supply opening 15, and the locking nut 33 that head 3 is fixed on bowl bodies 1.
For filter 5 because it has same structure with first embodiment, below in the explanation only chance when needing with reference to it.On the other hand, for bowl bodies 1, in this example, it does not have internal thread on cylindrical inner wall, and for head 3, in this example, does not have external screw thread at its external peripheral surface.
Referring to Fig. 9, Figure 10 and Figure 12 (enlarged drawing in Fig. 9 circle).The opening portion 2 of bowl bodies 1 has cylindrical inner wall 7, the core that converges substantially downwards towards outlet 13 with the form of funnel and the ring-shaped flat peripheral part that supports the peripheral part of filter 5.At peripheral part, the circumferential recess of the elastic O-ring 16 that having packs into is used to seal.As shown in Figure 9, form external screw thread 37, with internal thread 35 screw-threaded engagement on the interior perimeter surface of locking nut 33 at the upper portion of the periphery of bowl bodies 1.In addition, the relative position in the diameter both sides of cylindrical inner wall 7 forms vertically-guided groove 18,18, and filter 5 has the protuberance 17,17 (referring to Fig. 5) that is contained in this groove by the mode identical with situation shown in Figure 2.Downside in bowl bodies 1 forms tabular projection 9, during when the head 3 of tightening bowl bodies 1 or from bowl bodies 1 dismounting head 3, as finger or instrument grip portion.
Referring to Fig. 9, Figure 13 and Figure 14, the expansion of the inner end of the supply opening 15 of head 3 forms the space 43 that communicates with the filtering surface of filter 5.As mentioned above, the wall of ambient 43 comprises the protrusion pressures partially 23 of shape picture ring, and it is by the peripheral part of O shape circle 20 towards the bottom press filtration plate 5 of opening portion 2.The diameter of head 3 is slightly less than the diameter of the cylindrical inner wall 7 of bowl bodies 1, thereby head 3 can be inserted wherein.In order to prevent that it from rotating, have protuberance 45,45 in the neighboring of head 3, they are inserted in the perpendicular grooves 18,18 of bowl bodies 1.Divide formation shoulder 41 in the upper surface outer peripheral portion of head 3, it contacts with the agency part 39 of locking nut 33, thereby bears its fastening force.Based on this reason, the protrusion pressures partially 23 that filter 5 can be subjected to head 3 vertical (along filter axially) fastening force of effect.
The structure of filter 5 with explain in first embodiment with reference to figure 5 and 6 identical.
Referring to Fig. 8 and 9, locking nut 33 has the ring-shaped flat part below, and it has the agency part 39 of the shoulder 41 of tight contact head 3; And having cylindrical periphery limit wall, perimeter surface forms internal thread 35 in it.External screw thread 37 screw-threaded engagement that form on the external peripheral surface of internal thread 35 and bowl bodies 1.The agency part 39 of nut 33 forms polygonized structure, so that make it become the grip portion of finger or instrument.
Filter or lock out operation before, or assessment and measuring before the filter membrane is with pack into the circumferential recess of bowl bodies 1 opening portion 2 bottom surfaces of O shape circle 16; Then, utilize protuberance 17 and perpendicular grooves 18 that one or more filters 5 that O shape circle 20 is housed in its circumferential recess 29 are in alignment with each other, then put it into the opening portion 2 of bowl bodies 1.Then, under protuberance 45 and situation that perpendicular grooves 18 is alignd, head 3 is fastened in the opening portion 2 of bowl bodies 1.Then, locking nut 33 is installed on the head 3, the internal thread 35 with locking nut tightens on the external screw thread 37 of bowl bodies 1 again, re-uses finger or instrument rotation lock nut, thereby two are screwed at together.As a result, by agency part 39 and shoulder 41 fastening force is applied on the protrusion pressures partially 23 of the peripheral part of filter 5 and head.Its result realizes the liquid sealing of the peripheral part of filter 5 by O shape circle 16 and 20.Even in this embodiment, as shown in Figure 9, a plurality of filters 5 are assembled in wherein, and perhaps as shown in figure 11, single filter 5 is assembled in wherein.Like this, filter of the present invention has the high degree of flexibility structure, promptly according to required purpose, can assemble single or multiple filters 5 therein.
The 3rd embodiment
Explain the third embodiment of the present invention below with reference to Figure 15 to 23.Though this embodiment is similar to second embodiment that explains with reference to figure 8 to 14, difference is the hermetic unit structure of filter, the finger grip portion structure and the locking nut structure of filter.Certainly, in these accompanying drawings of each width of cloth, represent corresponding to those members use same reference numerals of the second embodiment filter.
Figure 15 is the perspective view according to the filter of this embodiment, and Figure 16 is the cutaway view along the line XVI-XVI of Figure 15.The filter of this embodiment comprises bowl bodies 1, and bowl bodies 1 has opening portion or recess 2 and incites somebody to action the outlet 13 of filter liquide discharge; One or more filters 5, they are inserted in the opening portion 2, and by the bottom support of opening portion; Pressure ring 55, it is used for pressure filtration plate 5 or the upper surface of the filter membrane of having packed into; Head 3, it has protrusion pressures partially 23 cylindric or shape picture ring, protrudes pressures partially 23 peripheral part of pressure ring 55 is pressed to the bottom of recess 2, so that hermetic seal or the liquid peripheral part of seal joint 55 hermetically; Also have raw material liq supply opening 15 and head is fixed to the locking nut 33 of bowl bodies 1.In addition, also have the bubble of discharge raw material liq and the gas vent 51 of dissolved gas in this embodiment.
The opening portion 2 of bowl bodies 1 has cylindrical inner wall 7, the cores that slowly converge downwards towards outlet 13 with the form of funnel and the ring-shaped flat peripheral part that supports the peripheral part of filter 5.This peripheral part has the circumferential recess 57 that is used to seal.The circumferential protrusions 59 (referring to Figure 18) that the cross section is del is housed in this groove, and circumferential protrusions 59 is outstanding from the bottom surface of filter 5, installs to form sealing between these two parts.Upper portion at the cylinder external peripheral surface of bowl bodies 1 forms external screw thread 37, it and internal thread 35 screw-threaded engagement of the interior perimeter surface formation of locking nut 33.In addition, in the part cylindrical inner wall, has vertically-guided groove 65, the finger engagement protuberance 63 (referring to Figure 17 to 19) of the filter 5 of wherein packing into.Consider subsequently the filter structure of describing, finger engagement protuberance 63 and raw material liq and the channel separation of filter liquide.Therefore, even there is finger engagement protuberance 63, can prevent that also filter liquide is contaminated.Therefore, according to this model, it is easy that the assembling of filter and replacement become.On each filter, has directed protuberance 67, shown in Figure 17 and 19; Corresponding therewith, on the inwall 7 of bowl bodies 1, form perpendicular grooves (not shown) by the mode identical with the example of Fig. 2.Therefore, which surface that always can correctly determine filter 5 up.
As shown in figure 16, the expansion of the upper end of the supply opening 15 of head 3 forms the space 43 that communicates with the filtering surface of filter 5.The surrounding wall in space comprises the protrusion pressures partially 23 of shape picture ring as mentioned above, and it is by the peripheral part of pressure ring 55 and O shape circle 20 towards the bottom press filtration plate 5 of opening portion 2.The diameter of head 3 is slightly less than the diameter of the cylindrical inner wall 7 of bowl bodies 1, thereby the lower portion of head 3 can be inserted wherein.Divide formation shoulder 41 in the upper surface outer peripheral portion of head 3, it contacts with the agency part 39 of locking nut 33, thereby bears its fastening force.Based on this reason, the protrusion pressures partially that filter 5 and pressure ring 55 are subjected to head 3 23 vertical (along filter axially) fastening force of effect.
Locking nut 33 has the ring-shaped flat part, and its agency part 39 is the shoulder 41 of contact head 3 closely; And having cylindrical peripheral limit wall, perimeter surface forms internal thread 35 in it.External screw thread 37 screw-threaded engagement that form on the external peripheral surface of internal thread 35 and bowl bodies 1.As shown in figure 15, by three of the peripheral parts outside handle 53 of equal angles position at interval each other, make the fastening of locking nut 33 and dismounting easily.On the peripheral part of bowl bodies 1, also has similar handle 61.When having suitable anti-rotation moving part, bowl bodies 1 can not have any handle 61.
The filter 5 of this 3rd embodiment is illustrated in Figure 17 (plane), Figure 18 (along the cutaway view of the line XVIII-XVIII of Figure 17) and Figure 19 (bottom view).Filter 5 has pressurization and inserts recess, and the inner bottom part that inserts recess in this pressurization has flat maintenance face 31, forms the plane of atresia at the peripheral part of this flat maintenance face 31.On maintenance face 31, keep a diffusion barrier (maintain two diffusion barriers 25,25 ' in the drawings, represent) at least with chain-dotted line.In order to keep diffusion barrier 25,25 ', pressure ring 55 is inserted the pressurization of filter 5 and insert recess.And,, the peripheral part of diffusion barrier is pressed onto on the peripheral part plane surface of maintenance face 31 by the encapsulates concentric projection 75 outstanding from the bottom surface of its neighboring part.As explaining that the periphery edge part 79 of pressure ring 55 and the periphery edge part 70 of filter fuse each other with reference to Figure 23.For this reason, two members 5 and 55 are all made by thermoplastic.
When one or two diffusion barriers 25,25 ' are can heat fused during to the type of filter 5, diffusion barrier can heat fused to filter 5.For example, but under the situation of the diffusion barrier that the diffusion barrier made of polyethylene of combination heat fused and fluororesin that can not heat fused are made, polyethylene diffusion barrier 25 is fused on the filter 5.Then, above fluororesin diffusion barrier 25 ' was placed on simply, peripheral part was pressed to the flat peripheral part of filter 5 maintenance faces 31 by pressure ring 55.
The upper surface of filter 5 is designed to grid form, and forms a plurality of grooves 26 on the surface 31 of pressurization insertion recess, and they communicate with each other with the screen cloth form between grill portion, increase effective filter table area.And, have equally distributed a plurality of hole 27 in its lower surface one side, flow to filter liquide in the groove 26 with collection.Under the situation of using a plurality of filters, pressurization is inserted recess and is formed the distribution flow channel that leads to diffusion barrier 25.
As mentioned above, the circumferential protrusions 59 of outstanding del on the bottom surface of filter 5 neighboring parts.Circumferential protrusions 59 has equal height on whole circumference, its tip falls into identical plane.The width of circumferential protrusions 59 is greater than the circumferential recess 57 that forms in the bowl bodies 1, and its height can not make projection 59 arrive circumferential recess 57 bottoms when assembling mutually.Like this, can between the top edge of circumferential protrusions 59 and inside and outside wall, realize sealing by strain.
In addition, as mentioned above, form finger engagement protuberance 63 and directed protuberance 67 on filter 5, finger engagement protuberance 63 inserts the direction recess 18 of bowl bodies 1.On the other hand, directed protuberance 67 inserts in the corresponding direction adjusting groove.Consequently the assembly and disassembly of filter 5 become easily, and filter 5 can correctly be installed by its front/reverse side, and can prevent its rotation when being screwed into head 3.
The pressure ring 55 of this 3rd embodiment is illustrated in Figure 20 (plane) and Figure 21 (along the cutaway view of the line XXI-XXI of Figure 20).
On pressure ring 55, plane surface 71 is formed on upper surface one side, and forms elastic packing part 77, and elastic packing part 77 has the hermetic unit that comprises three (generally being a plurality of) concentric projections 75 of del, and projection 75 is outstanding from the bottom surface.And upper and lower surface communicates with each other by hole 73, forms a liquid distribution flow channel.The tip of three projections is in the same plane.Plane surface 71 is as the sealing surfaces (Figure 16) of O shape circle 20, perhaps as the sealing surfaces of the circumferential protrusions 59 of another filter 5.
The peripheral part bottom surface 81 of pressure ring 55 cooperates with platform exponent part 69 on the filter 5, keeps two members 5 and 55 with relation fixed to one another, and elastic packing part 77 bendings that prevent to have concentric projection 75 simultaneously.
In this embodiment, filter 5, diffusion barrier 25,25 ' and pressure ring 55 make a part that has integrated in advance.
A kind of state that Figure 23 represents is that diffusion barrier 25,25 ' remains on the filter 5, with pressure ring 55 these structures that obtain of pressurization, and these two member heat fuseds, thereby be combined together to form the filter unit.
As mentioned above, pressure ring 55 inserts the pressurization of filters 5 and inserts recess, and uses from the outstanding encapsulates concentric projection 75 in the peripheral part bottom surface of its neighboring part, and the peripheral part of diffusion barrier is forced on the plane surface of peripheral part of maintenance face 31.And the step part 69 of filter 5 supports the peripheral part bottom surface 81 of pressure ring 55.Insert in the pressurization of inserting filter 5 between the interior perimeter surface of periphery edge part 79 and the periphery edge part 70 of filter 5 of pressure ring 55 of recess, form the gap because existence is positioned at pressure ring raised edges 83 on every side.Therefore, when hot plate was applied to periphery edge part 79 and 70 pressurizations of periphery edge part, periphery edge part 70 and 79 was melted in together and is extruded, thereby fuses together.And the resin inflow peripheral skirt that has melted is divided the gap between 70 and 79, forms the fused portion W that has flattened as shown in figure 23.The upper surface of the fused portion W that this flattens is almost consistent with plane surface 71.
Figure 22 represents that the filter of the 3rd embodiment uses the situation of two or more filters 5.In this example, use two filters and two pressure rings 55.And the sealing between the filter 5 and 5 is realized by following mode: the circumferential protrusions 59 of upside filter bottom surface leans against on the plane surface 71 of downside pressure ring 55, and the fastening force by locking nut 33 applies sealing force thus.
Filter or lock out operation or assessment and measure filter membrane before, suppose that diffusion barrier 25 and/or 25 ' is assembled in filter 5 and the pressure ring 55, as shown in figure 23, form whole filter unit thus.
Subsequently, use finger engagement protuberance 63, vertically-guided groove 65 and directed protuberance 67, filter 5 is placed on the bottom surface of bowl bodies 1 opening portion 2.Consequently, pack into the circumferential recess 57 of bowl bodies 1 and sealing herein of the circumferential protrusions 59 of filter 5 bottom surfaces.If desired, another filter 5 also is fitted together with pressure ring 55.Consequently, the circumferential protrusions 59 of upside filter 5 leans against on the plane surface 71 of downside pressure ring 55.At last, head 3 installs on the bowl bodies 1 with locking nut, and the opening portion 2 of bowl bodies 1 is inserted in the bottom of head 3; The internal thread 35 of locking nut 33 and external screw thread 37 threaded engagement of bowl bodies 1; And by using handle 53, perhaps use handle 61 according to this situation, can be with hand or instrument rotation lock nut 33.Therefore, head 3 is screwed into bowl bodies 1.Thus, by agency part 39 and shoulder 41, fastening force is applied on the peripheral part of filter head by protruding pressures partially 23, thereby three concentric projections 75, circumferential protrusions 59 and circumferential recess 57 liquid of O shape circle 20, elastic packing part 77 seal the peripheral part of filter 5 hermetically.Consequently, raw material liq and the flow channel of filter liquide and direction recess or the like have been isolated fully.In addition, as shown in figure 16, can assemble single filter 5; Perhaps as shown in figure 22, also can assemble a plurality of filters.Similarly, filter of the present invention has the high degree of flexibility structure, promptly can assemble single or multiple filters 5 according to application target.
As mentioned above, according to the present invention, the flow channel that is used to test the pending liquid of diffusion barrier has the simplest straight line (being called " in-line arrangement ") type.That is, its structure has the type of simplifying most.In addition, however, be installed in flow channel with the direction that is basically perpendicular to flow channel, therefore can provide filter efficiency good filter owing to be used to filter the diffusion barrier of raw material liq; And the assembling/dismounting of diffusion barrier that is used to test the diffusion barrier performance is easy, and its replacement can be carried out fast.
Claims (14)
1. filter comprises: bowl bodies, and described bowl bodies has outlet in a side, has the opening portion that communicates with described outlet at opposite side; At least one filter, described filter has the diffusion barrier that remains on or be fixed to the upper, diffusion barrier makes original untreated liquid by its filtration, and described filter has the described original untreated liquid of permission or filter liquide is from its hole of passing through, and described at least one described filter is contained in the described opening portion of described bowl bodies; Head, described head has the protrusion pressures partially in the one side, protrudes pressures partially and pressurizes described filter to prevent the described leakage of filter liquide from the one side, has the original liquid supply opening that is untreated at its opposite side; And with the pressue device of described head to described bowl bodies pressurization.
2. filter as claimed in claim 1, it is characterized in that, described pressue device is to form and the internal thread and the external screw thread of screw-threaded engagement each other at described bowl bodies and described head, and described internal thread and external screw thread relatively rotate with respect to each other to carry out described pressurization.
3. filter as claimed in claim 1 or 2 is characterized in that, has wherein kept or the described filter that is fixed with described diffusion barrier is packed into by this way, and one of more than one described filter is stacked on another.
4. filter comprises: bowl bodies, and described bowl bodies has outlet in a side, has the opening portion that communicates with described outlet at opposite side; At least one filter, described filter has the diffusion barrier that remains on or be fixed to the upper, described diffusion barrier makes original untreated liquid by its filtration, and filter has the described original untreated liquid of permission or filter liquide is from its hole of passing through, and described at least one filter is contained in the described opening portion of described bowl bodies; Head, described head has the protrusion pressures partially in the one side, protrudes pressures partially and pressurizes described filter to prevent the described leakage of filter liquide from the one side, has the original liquid supply opening that is untreated at its opposite side; And along described head and described bowl bodies axially with the locking nut of described head to described bowl bodies pressurization.
5. filter as claimed in claim 4, it is characterized in that, in described bowl bodies and the described locking nut each has the threaded portion that is engaged with each other disposed thereon, and by rotating in them each relative to each other so that described head is pressed to described bowl bodies.
6. as claim 4 or 5 described filters, it is characterized in that wherein kept or the described filter that is fixed with described diffusion barrier is packed into by this way, one of more than one described filter is stacked on another.
7. as claim 2 or 5 described filters, it is characterized in that the outer surface of described bowl bodies one side is provided with the tabular projection of controlling by finger.
8. filter as claimed in claim 2 is characterized in that, the outer surface of the opposite side of described head is provided with the tabular projection of controlling by finger.
9. as claim 4 or 5 described filters, it is characterized in that described locking nut has the handle that finger is controlled in three positions of its neighboring part.
10. as claim 1 or 4 described filters, it is characterized in that, described filter has the circumferential protrusions of predetermined altitude on its bottom surface, on the other hand, the inner bottom part of the described opening portion of described bowl bodies has the circumferential recess of holding described circumferential protrusions, thereby described filter is pressed described bowl bodies, to realize sealing.
11., it is characterized in that the pressure ring that has at least one concentric projection in its bottom side is arranged on the upper surface of described at least one filter as claim 1 or 4 described filters; Upper surface one side at described filter has at upwardly extending first plane surface of whole week; And the described concentric projection of described pressure ring is forced on described first plane surface of described filter, to realize sealing.
12. filter as claimed in claim 11 is characterized in that, the surperficial thereon side of described pressure ring has second plane surface; And the circumferential protrusions with predetermined altitude is crushed on described second plane surface, circumferential protrusions is set in place on the lower face side of the described filter of the described second plane surface upside, thereby realize sealing, perhaps the described protrusion pressures partially of described head pressurizes by O shape circle, thereby realizes sealing.
13. as claim 1 or 4 described filters, it is characterized in that, be provided with finger engagement protuberance in the neighboring of described filter; And corresponding therewith, have on the described bowl bodies finger engagement protuberance is contained in wherein direction recess.
14., it is characterized in that described filter has the first periphery edge part around described first plane surface as claim 11 or 12 described filters; And described pressure ring has the second periphery edge part around described second plane surface, and thus, when recess was inserted in the pressurization of described filter that described pressure ring is packed into, described device was constructed such that described first and second periphery edges part can fuse each other.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003289859 | 2003-08-08 | ||
| JP289859/2003 | 2003-08-08 | ||
| JP228174/2004 | 2004-08-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1832795A true CN1832795A (en) | 2006-09-13 |
| CN100381197C CN100381197C (en) | 2008-04-16 |
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ID=36994623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800225635A Expired - Fee Related CN100381197C (en) | 2003-08-08 | 2004-08-06 | Simplified filter device |
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| Country | Link |
|---|---|
| CN (1) | CN100381197C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450281B (en) * | 2007-11-30 | 2012-05-23 | 新世膜科技股份有限公司 | Negative-pressure operation type reverse osmosis filter membrane system |
| CN102580542A (en) * | 2011-01-11 | 2012-07-18 | 旭化成医疗株式会社 | Filtering assembly |
| CN104289023A (en) * | 2014-10-31 | 2015-01-21 | 茆正伟 | Sludge filtering-pressing dehydrator |
| CN104524983A (en) * | 2014-12-30 | 2015-04-22 | 黄涛 | Membrane clamping device and detection equipment for water treatment membrane employing membrane clamping device |
| CN106804105A (en) * | 2014-10-22 | 2017-06-06 | 陶氏环球技术有限责任公司 | Filter pack comprising the filtering module fastened by rotatable retaining ring |
| CN115138406A (en) * | 2022-06-15 | 2022-10-04 | 安徽福贸生物科技有限公司 | Medical micro-fluidic chip advances appearance filter equipment convenient to disappear and kill |
| CN115155679A (en) * | 2022-06-17 | 2022-10-11 | 安徽福贸生物科技有限公司 | Micro-fluidic chip fixing and sample injection device for medical detection |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678576A (en) * | 1981-09-16 | 1987-07-07 | Nalge Company | Reusable filter unit with recoverable filter membrane |
| US4935142A (en) * | 1989-06-23 | 1990-06-19 | Memtek Corporation | Apparatus for retaining variable number of sheet membrane elements and a method for the use thereof |
| US6458278B1 (en) * | 1999-02-22 | 2002-10-01 | Nalge Nunc International Corporation | Filtering unit having separately attachable filter cassette, filter cassette, and method of filtering |
| US6641670B2 (en) * | 2000-10-12 | 2003-11-04 | Toray Industries, Inc. | Leaf coater for producing leaf type coated substrates |
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2004
- 2004-08-06 CN CNB2004800225635A patent/CN100381197C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450281B (en) * | 2007-11-30 | 2012-05-23 | 新世膜科技股份有限公司 | Negative-pressure operation type reverse osmosis filter membrane system |
| CN102580542A (en) * | 2011-01-11 | 2012-07-18 | 旭化成医疗株式会社 | Filtering assembly |
| CN106804105A (en) * | 2014-10-22 | 2017-06-06 | 陶氏环球技术有限责任公司 | Filter pack comprising the filtering module fastened by rotatable retaining ring |
| CN104289023A (en) * | 2014-10-31 | 2015-01-21 | 茆正伟 | Sludge filtering-pressing dehydrator |
| CN104289023B (en) * | 2014-10-31 | 2016-01-13 | 茆正伟 | A kind of sludge filtering pressing dehydrator |
| CN104524983A (en) * | 2014-12-30 | 2015-04-22 | 黄涛 | Membrane clamping device and detection equipment for water treatment membrane employing membrane clamping device |
| CN115138406A (en) * | 2022-06-15 | 2022-10-04 | 安徽福贸生物科技有限公司 | Medical micro-fluidic chip advances appearance filter equipment convenient to disappear and kill |
| CN115138406B (en) * | 2022-06-15 | 2024-05-24 | 安徽福贸生物科技有限公司 | Medical micro-fluidic chip sampling filter device convenient to kill |
| CN115155679A (en) * | 2022-06-17 | 2022-10-11 | 安徽福贸生物科技有限公司 | Micro-fluidic chip fixing and sample injection device for medical detection |
| CN115155679B (en) * | 2022-06-17 | 2024-05-24 | 安徽福贸生物科技有限公司 | Micro-fluidic chip fixing sample injection device for medical detection |
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|---|---|
| CN100381197C (en) | 2008-04-16 |
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Correction item: Priority Correct: 2004.08.04 JP 228174/2004 False: Lack of priority second Number: 37 Page: The title page Volume: 22 |
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