CN105214358B - Quick-changing type filter element and preparation method thereof - Google Patents

Quick-changing type filter element and preparation method thereof Download PDF

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Publication number
CN105214358B
CN105214358B CN201510609391.1A CN201510609391A CN105214358B CN 105214358 B CN105214358 B CN 105214358B CN 201510609391 A CN201510609391 A CN 201510609391A CN 105214358 B CN105214358 B CN 105214358B
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filtration
filter layer
filter
quick
axial
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CN105214358A (en
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高麟
汪涛
陈慧
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Intermet Technology Chengdu Co Ltd
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Intermet Technology Chengdu Co Ltd
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Abstract

The present invention relates to quick-changing type filter elements, include the filtration of at least two tubulars, are joined end to end by connector between each filtration and constitute hollow filter assemblies.The quick-changing type filter element, it is simple in structure, the axial length of filtration can be adjusted flexibly as needed, dismounting is quick and convenient, and the cleaning and replacement of filtration are more convenient, can save a large amount of cleaning and use cost;Its production method, simple and convenient, cost is relatively low, it can be achieved that fast assembling-disassembling under the premise of ensureing that structure is reliable.

Description

Quick-changing type filter element and preparation method thereof
Technical field
The present invention relates to a kind of quick-changing type filter elements and preparation method thereof.
Background technology
Currently, the filter element used in the filter device in filtration, purification field is usually monoblock type.Traditional is whole Body formula filter element by filtration and is vertically connected with plate by crimping or welding and constitutes cartridge structure mostly.For larger For type or the longer filter device of axial length, in order to increase filter area, the axial direction that can accordingly increase filter element is long Degree.However, when the axial length of filter element is longer, in terms of making, the mistake of filtration in Integral filtering element The area for filtering structure is larger, and processing technology is complicated, and crimp between filtration and connecting plate or welding quality is uncontrollable; Use aspect is difficult to thoroughly carry out cleaning after blocking and washing and cleaning operation is inconvenient, this is not since the area of filtration is larger The filter effect that filter element long-time service can only be influenced, can also have an impact filter efficiency;In addition, when filtering structure division Damage or because filter effect is deteriorated need replacing when, entire filter element need to be replaced, therefore higher operating costs.
Invention content
It is easy to clean technical problem to be solved by the invention is to provide a kind of simple in structure, fast demountable and replacement, Use cost is low, and quick-changing type filter element and its making side of filtration axial length and filter area can be adjusted flexibly Method.
The quick-changing type filter element of the present invention, includes the filtration of at least two tubulars, passes through between each filtration Connector, which joins end to end, constitutes hollow filter assemblies.The connector can make to be connected with each other between filtration and be connected to, and wait for Filter material is open from shaft end after being filtered by the circumferential surface of filtration and is discharged.Multiple filterings can be tied using connector Structure fits together, and to which filter area be significantly increased, the number of filtration can also be adjusted flexibly as needed to adapt to not With the filter device of size.The connector make it is convenient for disassembly and assembly between each filtration, it is detachable after to single filtration into Row cleaning and replacement can save a large amount of cleanings and use cost.The connector can be integral structure, and can also be can Detachable structure.Clamp connection, flanged joint, threaded connection etc. may be used between connector and filtration.The present invention's Quick-changing type filter element, it is simple in structure, the axial length of filtration can be adjusted flexibly as needed, dismount quick and convenient, mistake Cleaning and the replacement for filtering structure are more convenient, can save a large amount of cleaning and use cost.
Preferably, sealing structure is equipped between connector and filtration, it is ensured that sealed reliable.In addition, the connector It can also be to fit closely between filtration and connect, or be threadedly coupled using similar seal pipe, sealed without additional setting Structure.
Further, the connector includes the first link block being connected with filtration, and is connect with described first Block is connected and connects the second link block of adjacent filtration, second link block include connect with filtration it is hollow Tight lock part, and the flange set on axial one end of tight lock part;First link block has and can accommodate the flange, and covers The stepped hole with positioning and locking portion is set, the stepped hole is also connected with adjacent filtration.Connector is arranged to can The first link block and the second link block of detachable, are conducive to the structure for being further simplified connector, and make filtration, first It is mutually supported between link block and the second link block, keeps structure more solid and reliable.First link block is phase with the second link block Mutual snapping or socket, when installation, the tight lock part of the second link block can be passed through to the stepped hole and filtration of the first link block The locking of axial one end fits, the flange of the second link block is located in the stepped hole;The larger part in the stepped hole aperture The hole of flange (accommodate) axial depth should be appropriate, to match with axial one end of adjacent filtration after accommodating flange Close connection.It can mutually be supported between flange and the filtration for connecting stepped hole, stepped hole and the filtration for connecting tight lock part Between can also play the role of mutually supporting, improve the stability and reliability of structure.
Further, the filtration includes the filter layer of all face closures and axial both ends open, and is set to filter layer Axial one end, and with the female adapter of tight lock part cooperation, and match set on the axial other end of filter layer, and with stepped hole The male connection of conjunction.It is removably fixedly connected using screw-thread fit to realize, with simple in structure, connection is reliable, assembly and disassembly The advantages that convenient and efficient.
Further, second link block further includes being set between tight lock part and flange, and support the filtration Hollow step.The tight lock part, step and flange can be arranged to integral structure, and be in gabarit successively from top to bottom Increasing diameter it is hollow ladder-like, after step and tight lock part can be made to pass through the stepped hole of the first link block in this way, tight lock part and mistake The female adapter for filtering structure is connected, and can mutually be supported between the end face and step of filtration.The step and mistake It is also provided with sealing structure between filter structure, makes substance to be filtered can not be from the threaded connection gap of tight lock part and filtration Into the inside of filter assemblies.
Further, it is respectively equipped with sealing structure between tight lock part and female adapter, between flange and filtration.Point Whole sealing reliability can not be improved in each connecting portion setting sealing structure.Other than using sealing structure, also may be used Each connecting portion to be arranged to seal pipe screw thread accordingly.
Preferably, above-mentioned sealing structure is sealing ring.It in actual use, can be according to different applying working conditions, to select The type of sealing ring.In addition, above-mentioned sealing structure can also be provided in the airtight and watertight padding of threaded connection place, such as common poly- four Vinyl fluoride raw material band.
Preferably, the filter layer is made of flexible, porous metal film.Application may be used in the flexible, porous metal film It number is made of the preparation method of the flexible, porous metal foil described in 201510153116.3 Chinese patent application, or using existing The other similar approach having are made.The filter layer being made of flexible, porous metal film, flexible preferable, high mechanical strength is resistance to Corrosion, is not easy to deform cleaning repeatedly;Filtering accuracy is high, can filter out the smaller particulate matter of particle, and do not need It is carried out folding or be overlapped into multilayer, preferable filter effect can be reached, filtration resistance is small.After tested, the filtering Layer can bear 400 DEG C of high temperature, therefore be sterilized when in use using high temperature, more convenient to use.
According to different operating modes, in order to further increase whole structural strength, it is also provided with the support knot of filter layer Structure, the support construction can be face support construction, and in order to not influence the filtering of filter layer, face support construction is intervally distributed with out Hole.The face support construction can be supported the whole surface of filter layer, rather than just the sub-fraction position to filter layer Set and be supported, relative to traditional rigid frame or skeleton etc. can only to filter layer into line support (i.e. frame or skeleton and Spacing between the position contacted between filter layer is seldom and each contact site is larger), or for traditional filter cloth bag For, the support to filter layer is significantly increased under the premise of ensureing that filter efficiency is higher, filtration resistance is smaller in face support construction Area is conducive to the structural strength for improving filtration entirety, even if larger in high pressure, the blowback operating mode of high flow rate and pressure difference Filter operating mode under in use, due to face support construction effect, the surface uniform force of filter layer, thus hardly generate in Bulging or outer bulging deformation, and filter layer is not easy to wear under alternate stress effect, can greatly extend the use of filter layer Service life, to cost-effective.
For the same filtration, the face support construction of filter layer can connect male connection and female adapter, Face support construction is set mutually to be supported with male connection, female adapter, to further increase the stability of structure and reliable Property, and more consolidated after so that multiple filtrations is connected.
It can also be equipped with braced frame between male connection and female adapter, make braced frame, male connection, interior spiral shell Play the role of mutually supporting and positioning between line connector.In practical application, braced frame and male connection and internal thread It can be connected by welding between connector, or male connection, braced frame and female adapter be arranged to hollow Integral structure.The braced frame can be spaced column structure, and size and number should be appropriate, and column structure can To be metal round bar or other structures, structural strength is high, can be risen to male connection, female adapter knead dough support construction To preferable positioning supporting role, and hardly influence the filter effect of filter layer.
The face support construction can be set between braced frame and filter layer, can not only make face support construction to filtering in this way Layer is played a supporting role, and braced frame opposite support construction can also be made to play the role of positioning support.Also, due to filtering group Part frequently with outside into it is interior go out filter type (substance i.e. to be filtered is filtered by filtration outer surface, filtered object Matter, which enters inside filtration and is open from shaft end, to be discharged), therefore such structure can make substance to be filtered when being filtered, it is first It is first contacted with the filtering surface of filter layer, to make filter residue be blocked, face support construction is first passed around relative to substance to be filtered For contacting and be filtered with the filtering surface of filter layer again, filter effect is more preferable, preferably filter residue can be avoided to remain in In gap between face support construction and filter layer, and face support construction can bear the impact of substance to be filtered in filter layer When, better supporting role is played to filter layer.It is interior into outgoing filter type according to actual use situation, such as when using When, filter layer can also be set between face support construction and braced frame.
Preferably, between filter layer and face support construction, between filter layer and connector and braced frame is supported with face It is welding structure or bonded structure between structure.It is attached by welding structure or bonded structure, it is simple and convenient, it is fabricated to This is low, and according to actual conditions, sealing structure (such as fluid sealant, sealing ring) is also provided between each connecting portion, it is ensured that Leakproofness is preferable.
Under the premise of ensureing that and overall construction intensity preferable to the support effect of filter layer is higher, in order to improve filtering Efficiency reduces filtration resistance, and the porosity of the face support construction is preferably 40%~80%, and thickness is preferably 0.3~1.2 milli Rice, such as porosity can be 50%, 60% or 70%, thickness can be 0.5mm, 0.8mm or 1mm.
Further, two axial ends of the filter assemblies are correspondingly connected with pedestal and the location structure equipped with through-hole. It is convenient for the quick-changing type filter element by the present invention to be directly installed in filter device so to can be used, substance to be filtered can pass through The closed filtration of circumferential surface is filtered, and filtered substance is discharged from the through-hole of location structure.The bottom of the filter assemblies Filter layer can also be equipped on seat, to further increase filter area.The pedestal and location structure are equipped with and filtration External thread structure and the corresponding helicitic texture of female adapter, pedestal and tight lock part can not phase except lead of screw thread and the number of leads With outside, remaining thread parameter is identical;Likewise, location structure and the first link block are also can not except lead of screw thread and the number of leads Identical outer, remaining thread parameter is identical, can meet interchangeability principle in this way, convenient for producing and ensureing Product Precision in batches, assembly Secondary process and repair are not needed with when replacing, more fast.
Sealing ring can be equipped between pedestal and female adapter;The location structure can also be equipped with gabarit diameter and be more than filtering The circular ring structure of the cross section gabarit size of structure, circular ring structure make convenient for quick-changing type filter element of the present invention in filter device The installation of used time positions, and sealing ring is equipped between circular ring structure and the male connection of filtration.
Similar, the pedestal can also be substituted for filter layer completely, and can be equipped with the face support construction of filter layer.
Preferably, under the premise of ensureing that overall construction intensity is preferable and filter area is larger, the axial length of filter layer Preferably 1~3 meter, a diameter of 60~180 millimeters.The draw ratio of filter layer can be adjusted according to actual conditions.
When in use, filtration can be selected as needed and connects the quantity of the connector of each filtration.It is protecting Under the premise of card intensity is preferable, the number of the filtration is preferably 2~10.
The present invention also provides a kind of production methods for above-mentioned quick-changing type filter element to be, with connector by tubular Filtration joins end to end, and forms hollow filter assemblies.This production method is simple and convenient, and dismounts quickly, will be multiple Identical filtration, which fits together, just to be achieved the purpose that increase filter area, is conducive to the manufacture craft for simplifying filtration To save great amount of cost, and the number of filtration can be adjusted flexibly as needed to adapt to different filter devices, have Conducive to the application range of expansion quick-changing type filter element of the present invention.
In order to be further simplified the manufacturing process of quick-changing type filter element, and easy to disassemble, replacement, quick change of the invention The making of formula filter element is reliable using connection, is convenient to mount and dismount and is efficiently threadedly coupled.Filtration is specifically passed through into correspondence Male connection and female adapter set on axial both ends are connected with connector.
Specifically, when the connector uses above-mentioned first link block and the second link block, it can be first by filtration Female adapter connect and seal with base engagement after, by the tight lock part of the second link block pass through the first link block step Hole makes the flange of the second link block be located in the stepped hole;The male connection of stepped hole and filtration is coordinated again and is connected It connects, and makes to seal between the male connection and flange;Then, by the internal thread of the tight lock part and adjacent filtration Connector is connected and seals;It is sequentially connected after obtaining required making length, by the male connection of the last one filtration It is connected and seals with location structure.The sealing is realized using above-mentioned sealing ring.The production method is easy to operate, and Multiple sealing cooperations are used, are conducive to improve whole sealing performance.
The quick-changing type filter element of the present invention, it is simple in structure, the axial length of filtration can be adjusted flexibly as needed, It dismounts quick and convenient, the cleaning of filtration and replaces more convenient, a large amount of cleaning and use cost can be saved;It makes Method, simple and convenient, cost is relatively low, it can be achieved that fast assembling-disassembling under the premise of ensureing that structure is reliable.
Specific implementation mode with reference to embodiments is described in further detail the above of the present invention again. But the range that this should not be interpreted as to the above-mentioned theme of the present invention is only limitted to example below.Think not departing from the above-mentioned technology of the present invention In the case of thinking, the various replacements or change made according to ordinary skill knowledge and customary means should all be included in this hair In bright range.
Description of the drawings
Fig. 1 is the structural schematic diagram of quick-changing type filter element of the present invention.
Fig. 2 is the sectional view of the first link block in Fig. 1.
Fig. 3 is the sectional view of the second link block in Fig. 1.
Fig. 4 is the sectional view of female adapter in Fig. 1.
Fig. 5 is the sectional view of male connection in Fig. 1.
Fig. 6 is the sectional view of pedestal in Fig. 1.
Fig. 7 is the sectional view of location structure in Fig. 1.
Specific implementation mode
Quick-changing type filter element as shown in Figure 1 includes the filtration of at least two tubulars, leads between each filtration It crosses connector and joins end to end and constitute hollow filter assemblies.
The connector includes the first link block 8 as shown in Figure 2 being connected with filtration, and connects with described first The second link block 7 as shown in Figure 3 that block 8 is connected and connects adjacent filtration is connect, second link block 7 includes and mistake Filter the hollow tight lock part 71 of structure connection, and the flange 73 set on axial one end of tight lock part 71;First link block 8 With the flange 73 can be accommodated, and be nested with the stepped hole in positioning and locking portion 71 81, the stepped hole 81 also with adjacent mistake Filter respective outer side edges connection.
The filtration includes the filter layer 4 of all face closures and axial both ends open, and set on axial the one of filter layer 4 End, and the female adapter 6 as shown in Figure 4 coordinated with tight lock part 71, and set on the axial other end of filter layer 4, and with The male connection 3 as shown in Figure 5 that stepped hole 81 coordinates.It is removably fixedly connected, is had to realize using screw-thread fit It is simple in structure, connection is reliable, is convenient to mount and dismount the advantages that quick.The filter layer 4 is made of flexible, porous metal film.Tight lock part 71 It is respectively equipped with sealing structure 1 between female adapter 6, between flange 73 and filtration.It is set respectively in each connecting portion Whole sealing reliability can be improved by setting sealing structure 1.It, can also be by each connecting portion other than using sealing structure 1 It is arranged to seal pipe screw thread accordingly.
Second link block 7 further includes being set between tight lock part 71 and flange 73, and support in the filtration Empty step 72.The tight lock part 71, step 72 and flange 73 can be arranged to integral structure, and be in successively from top to bottom Gabarit increasing diameter it is hollow ladder-like, after step 72 and tight lock part 71 can be made to pass through the stepped hole 81 of the first link block 8 in this way, Tight lock part 71 and the female adapter 6 of filtration are connected, and can mutually be propped up between the end face and step 72 of filtration Support.It is also provided with sealing structure 1 between the step 72 and filtration, makes substance to be filtered can not be from tight lock part 71 and mistake The threaded connection gap of filter structure enters the inside of filter assemblies.
In order to further increase whole structural strength, it is also provided with the face support construction 5 of filter layer 4, in order not to shadow The filtering of filter layer 4 is rung, face support construction 5 is intervally distributed with trepanning.The porosity of the face support construction 5 is preferably 40%~ 80%, thickness is preferably 0.3~1.2 millimeter, such as porosity can be 55%, 65% or 75%, thickness can be 0.6mm, 0.9mm or 1.1mm.The axial length of filter layer 4 is 2 meters, diameter can be 70mm, 90mm, 110mm, 130,150mm or 170mm etc. can adjust draw ratio according to actual conditions.The face support construction 5 can prop up the whole surface of filter layer 4 Support, is supported rather than just the sub-fraction position to filter layer 4, can only relative to traditional rigid frame or skeleton etc. To filter layer 4 into line support (between the position contacted between frame or skeleton and filter layer 4 is seldom and each contact site Spacing it is larger), or for traditional filter cloth bag, face support construction 5 is ensureing that filter efficiency is higher, filtration resistance Under the premise of smaller, the bearing area to filter layer 4 is significantly increased, is conducive to the structural strength for improving filtration entirety, i.e., Make under high pressure, the blowback operating mode of high flow rate and the larger filtering operating mode of pressure difference in use, due to face support construction 5 effect, The surface uniform force of filter layer 4, therefore interior drum or outer bulging deformation are hardly generated, and filtered under alternate stress effect Layer 4 is not easy to wear, and can greatly extend the service life of filter layer 4, to cost-effective.
For the same filtration, the face support construction 5 of filter layer 4 connects male connection 3 and female adapter 6, so that face support construction 5 and male connection 3, female adapter 6 is mutually supported, to further increase structure stability and Reliability, and more consolidated after so that multiple filtrations is connected.
It is additionally provided with braced frame between male connection 3 and female adapter 6, makes braced frame, male connection 3, interior Play the role of mutually supporting and positioning between nipple 6.Between braced frame and male connection 3 and female adapter 6 It can be connected as one by welding.The braced frame is spaced column structure, and size and number should fit When column structure can be metal round bar or other structures, and structural strength is high, can be to male connection 3, female adapter 6 knead dough support constructions 5 play preferable positioning supporting role, and hardly influence the filter effect of filter layer 4.
The face support construction 5 is set between braced frame and filter layer 4, not only face support construction 5 can be made to mistake in this way Filtering layer 4 is played a supporting role, and braced frame opposite support construction 5 can also be made to play the role of positioning support.Also, due to mistake Filter component frequently with outside into it is interior go out filter type (substance i.e. to be filtered is filtered by filtration outer surface, after filtering Substance enter inside filtration and be open from shaft end be discharged), therefore such structure can be such that substance to be filtered is being filtered When, it is contacted first with the filtering surface of filter layer 4, to make filter residue be blocked, face branch is first passed around relative to substance to be filtered For support structure 5 is contacted and is filtered with the filtering surface of filter layer 4 again, filter effect is more preferable, can preferably avoid filtering Slag remains in the gap between face support construction 5 and filter layer 4, and face support construction 5 can bear to wait in filter layer 4 When the impact of screening matter, better supporting role is played to filter layer 4.
Between filter layer 4 and face support construction 5, between filter layer 4 and connector and braced frame and face support construction It is welding structure or bonded structure between 5.It is attached by welding structure or bonded structure, simple and convenient, cost of manufacture It is low, according to actual conditions, sealing structure 1 is also provided between each connecting portion, it is ensured that leakproofness is preferable.
Two axial ends of the filter assemblies are correspondingly connected with pedestal 9 as shown in FIG. 6 and equipped with through-hole 22 such as Fig. 7 Shown in location structure 2.It is convenient for the quick-changing type filter element by the present invention to be directly installed in filter device so to can be used, Substance to be filtered can be filtered by the closed filtration of circumferential surface, through-hole 22 row of the filtered substance from location structure 2 Go out.Filter layer 4 can also be equipped on the pedestal 9 of the filter assemblies, to further increase filter area.9 He of the pedestal Location structure 2 is equipped with helicitic texture corresponding with the external thread structure of filtration and female adapter 6, pedestal 9 and tight lock part 71 in addition to lead of screw thread and the number of leads can differ, remaining thread parameter is identical;Likewise, location structure 2 and first connects Block 8 is also in addition to lead of screw thread and the number of leads can differ, remaining thread parameter is identical, can meet interchangeability principle in this way, Convenient for producing and ensureing that Product Precision, assembly do not need secondary process and repair with when replacing in batches, more fast.
Sealing structure 1 can be equipped between the pedestal 9 and female adapter 6;It is straight that the location structure 2 can also be equipped with gabarit Diameter is more than the circular ring structure 21 of the cross section gabarit size of filtration, and circular ring structure 21 is convenient for quick-changing type filter element of the present invention Installation when being used in filter device positions, and sealing knot is equipped between circular ring structure 21 and the male connection 3 of filtration Structure 1.
Above-mentioned sealing structure 1 is sealing ring.It in actual use, can be according to different applying working conditions, to select sealing ring Type.In addition, above-mentioned sealing structure 1 can also be provided in the airtight and watertight padding of threaded connection place, such as common polytetrafluoroethyl-ne Alkene raw material band.
Under the premise of proof strength is preferable, the number of the filtration is preferably 2~10.Such as it can be as needed The quantity of the connector of filtration and each filtration of connection needed for selection.Such as the filtration can have 4, 5,6,8 etc..
Multiple filtrations are fitted together by above-mentioned connector, and make interconnection and company between filtration Logical, substance to be filtered is open from shaft end after being filtered by the circumferential surface of filtration and is discharged, and filtering surface can be significantly increased Product, and the axial length of filtration can be adjusted flexibly as needed to adapt to different size of filter device.The connector So that it is convenient for disassembly and assembly between filtration, single filtration is cleaned and replaced after detachable, can be saved a large amount of clear Clean and use cost.
In addition to above structure, the connector can also be integral structure, can be between connector and filtration Using clamp connection, flanged joint etc..
The production method of above-mentioned quick-changing type filter element is that the filtration of tubular is joined end to end with connector, is formed Hollow filter assemblies.Specifically by filtration by being correspondingly arranged at male connection 3 and the female adapter 6 at axial both ends It is connected with connector, when connector uses above-mentioned first link block 8 and the second link block 7, the first link block 8 is connect with second Block 7 is mutual snapping or socket.It first will be after the female adapter of filtration 6 and pedestal 9 be connected and seal, by the The tight lock part 71 and step 72 of two link blocks 7 pass through the stepped hole 81 of the first link block 8, make the flange 73 of the second link block 7 In the stepped hole 81;The larger part in 81 aperture of the stepped hole (hole for accommodating flange 73) axial depth should be appropriate, To be connect with the axial one end fits of adjacent filtration after accommodating flange 73.By stepped hole 81 and filtration Male connection 3 is connected, and makes to seal between the male connection 3 and flange 73;Then, by the tight lock part 71 with The female adapter 6 of adjacent filtration is connected and seals;It is sequentially connected after obtaining required making length, by last The male connection 3 of a filtration is connected and seals with location structure 2.The sealing is using above-mentioned sealing ring come real It is existing.This production method is simple and convenient, and dismounts quickly, and multiple identical filtrations are fitted together and just reach increase The purpose of filter area is conducive to simplify the manufacture craft of filtration to save great amount of cost, and can spirit as needed The number of adjustment filtration living is conducive to the application for expanding quick-changing type filter element of the present invention to adapt to different filter devices Range.

Claims (4)

1. quick-changing type filter element, it is characterised in that include the filtration of at least two tubulars, pass through between each filtration Connector, which joins end to end, constitutes hollow filter assemblies;The filtration includes all face closures and axial both ends open by soft Property porous metal film constitute filter layer(4)And it is located at filter layer(4)Inside and the face support construction for being intervally distributed with trepanning (5), filter layer(4)Face support construction(5)Connect male connection(3)And female adapter(6), make face support construction(5) With male connection(3), female adapter(6)Mutually support;The connector includes that first to be connected with filtration connect Block(8), and with first link block(8)It is connected and connects the second link block of adjacent filtration(7), described second Link block(7)It include the hollow tight lock part being connect with filtration(71), and it is set to tight lock part(71)Axial one end Flange(73);First link block(8)With the flange can be accommodated(73), and be nested with and positioning and locking portion(71)Step Hole(81), the stepped hole(81)Also it is connected with adjacent filtration;The filtration includes being set to filter layer(4) Axial one end, and and tight lock part(71)The female adapter of cooperation(6), and it is set to filter layer(4)The axial other end, and With stepped hole(81)The male connection of cooperation(3);Tight lock part(71)With female adapter(6)Between, flange(73)With filtering Sealing structure is respectively equipped between structure(1).
2. quick-changing type filter element as described in claim 1, it is characterised in that the filter layer(4)Axial length be 1~3 Rice, it is 60~180 millimeters a diameter of.
3. quick-changing type filter element as described in claim 1, it is characterised in that two axial ends of the filter assemblies correspond to It is connected with pedestal(9)With equipped with through-hole(22)Location structure(2).
4. the quick-changing type filter element as described in one of claims 1 to 3, it is characterised in that the number of the filtration is 2 ~10.
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