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WO2023209742A1 - Boîtier pour filtres à usage industriel - Google Patents

Boîtier pour filtres à usage industriel Download PDF

Info

Publication number
WO2023209742A1
WO2023209742A1 PCT/IT2022/000019 IT2022000019W WO2023209742A1 WO 2023209742 A1 WO2023209742 A1 WO 2023209742A1 IT 2022000019 W IT2022000019 W IT 2022000019W WO 2023209742 A1 WO2023209742 A1 WO 2023209742A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
thread
parts
gasket
previous
Prior art date
Application number
PCT/IT2022/000019
Other languages
English (en)
Inventor
Gianluca CIALI
Lorena SALVINI
Original Assignee
La.Me Di Pratesi Luciano E Mancini Romano Soc. Artigiana In Nome Collettivo E C.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by La.Me Di Pratesi Luciano E Mancini Romano Soc. Artigiana In Nome Collettivo E C. filed Critical La.Me Di Pratesi Luciano E Mancini Romano Soc. Artigiana In Nome Collettivo E C.
Priority to PCT/IT2022/000019 priority Critical patent/WO2023209742A1/fr
Publication of WO2023209742A1 publication Critical patent/WO2023209742A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0004—Details of removable closures, lids, caps or filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4092—Threaded sections, e.g. screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B01D2265/029—Special screwing connections, threaded sections

Definitions

  • the present invention relates to the technical field regarding the production of housings (or containers in other words) of filters for filtering fluids , such as a liquid or a gas .
  • the invention relates to a particular housing for housing a filter equipped with a facilitated closure system.
  • the filters for fluids can be used for treating liquid or gaseous substances in the food, medical field and so on.
  • these filters are used for separating two liquids from each other, eliminating solid impurities from a liquid, sterilizing liquids (such as wine, oil) , and so on.
  • said filters for fluids are used in the treatment of drinking water, in the food industry, in the pharmaceutical industry, and so on.
  • the separation of the pre- treated fluid from the post-treated fluid occurs by housing the above-mentioned filters into suitable housings .
  • the housings for filters on the market have different sizes depending on the filter to be housed.
  • each housing can house one or more filters that are positioned into suitable seats of the housing.
  • housings are made of different materials (such as metal, plastic) depending on the field of use of the filter, the features of the fluid to be treated, the involved operative temperatures , and so on.
  • Said housings comprise generally two parts of a substantially cylindrical shape, that is an upper part and a lower part .
  • the housing is equipped with an entry path such that the fluid, entering through the said entry path, enters the inside of the housing and intercepts the filter to then, exiting from the filter, be sent outside the housing through an exit path.
  • Each part constituting the housing has a surface that fits the other one .
  • Said fitting surface is an annular surface of circular shape which extends radially from the lateral wall, in correspondence of the base end of each part, towards the outside (see for example references 11 , 12 of figure 2B) .
  • the closure of the housing is obtained by closing two clamps to form a collar connecting said two parts .
  • Each one of said two clamps comprises an inner groove suitable for receiving in use said two radially protruding surfaces and overlapping each other.
  • the clamps are kept closed in use by a lever .
  • a gasket is interposed between said two protruding surfaces .
  • the gasket (generally made of silicone) is interposed between the fitting protruding surfaces of said parts of the housing.
  • the said parts are made to fit and the protruding surfaces of said parts are wedged into the grooves of the clamps and these clamps close around said surfaces through a lever to form a collar .
  • Figure 1 , figure 2A and 2B show housings for filters made as per the prior art .
  • FIG. 1 a housing for filters of fluids, made of steel for example, is shown.
  • the housing comprises an upper part 1 and a lower part 2 .
  • the closure system is constituted by two clamps 6 and 6 ' hinged to each other at an end 7 thereof to form a collar that can. be opened or closed around this hinge 7.
  • each one of said clamps comprises a groove 17 (see for example figure 2A) suitable for receiving the thickness of said protruding surfaces overlapping each other .
  • said housing comprises a piping tube of the fluids on entry 3 , where a discharge valve 5 is present .
  • the fluids enter the piping tube 3 , they are filtered and sent to the exit to the piping tube 4 .
  • a seat 9 in the upper part 1 suitable for receiving a pressure gauge for monitoring the pressure of the fluids inside the housing .
  • Figure 2A shows a partial closure of the two parts (1 , 2 ) of the housing .
  • the clamp 6 ' is free to rotate around the hinge 7.
  • the groove 17 (receiving channel) of clamp 6 ' that is coupled to the protruding surfaces (11 , 12) of the parts 1 and 2 respectively and with the gasket interposed between said surfaces .
  • the groove surrounds the two protruding surfaces and the gasket overlapping each other .
  • clamp 6 given that it is equal and symmetrical to clamp 6 ' , comprises a groove (not visible in figure) suitable for receiving in use the protruding surfaces (11, 12 ) .
  • FIG. 1 shows an exploded view of the closure system (or connection in other words) .
  • FIG. 2B the components of the closure system are shown.
  • the fitting surfaces (ll f 12 ) of part 1 and part 2 respectively and a gasket element 10 interposed between said surfaces can be noted.
  • Said gasket 10 is made of such a shape as to retrace the profile of said surfaces and having the same diameter (thus of annular shape) .
  • Said gasket 10 is generally made of silicone to enable an optimal tightness between parts 1 and 2 , thereby reducing or eliminating seeping and leakages in general .
  • the introduced connection system has the difficulty of the precise insertion of the gasket 10 that can move .
  • said gasket can move from the starting position.
  • an aim of the present invention is providing a new type of housing for one or more filters for fluids , such as liquids and/or gas, which resolves said technical disadvantages .
  • the aim of the present invention is to provide a housing for filters for fluids , the closure system of which, that enables to close the two parts constituting the housing, is easy, fast and safe .
  • This housing for housing at least one filter for filtering a fluid can be intended for example for an industrial use such as in the pharmaceutical , food, chemical field, and so on.
  • this housing is formed by at least two parts ( 1 , 2) that can be detached from each other and thus that can be rej oined to each other .
  • the detachment allows the access to the inner volume (or the inner seat in other words) where the filter/s is/are positioned, generally in an interchangeable way.
  • said at least two parts when they are connected (or coupled in other words) to each other form an inner seat suitable for lodging the said at least one filter and therefore into which the filter is confined.
  • each one of the said at least two parts (1 , 2 ) comprises a thread which enables a coupling to each other by screwing.
  • a rotation in the way opposite to the screwing determines the unscrewing which enables a detachment of the said parts from each other in a fast way.
  • a gasket element ( 10 ) which is interposed in use between the two parts (l f 2) can be provided .
  • Said gasket element (10) ensures a better tightness of the fluids that are suitable for being filtered through the filter which is inserted into the housing.
  • said gasket element (10) can have an annular shape .
  • one of the two parts of the housing can have the shape of a cup having a base (30) and a vertical wall (31) on which a first thread (13 ' ) is obtained .
  • the shape of a cup determines the formation of a containment volume delimited by the said base (30) and by the vertical wall (31) .
  • a cavity (50) (or digging in other words) which runs annular ly under the thread is formed in the angle of intersection between this base (30) and the vertical wall (31) .
  • the vertical wall is further incised at the base thereof (that is, along the perimeter of intersection between the base 30 and the vertical wall 31) thereby creating a support base of greater radius and thus enabling the gasket to be housed with a hem thereof which will be under the thread and locked into the cavity 50 generated accordingly.
  • the gasket ( 10) has such a diameter as to be inserted into the cavity (50) formed in said part (2) where it remains fixed during the use of said housing.
  • the insertion of the gasket element ( 10) into the cavity (50) ensures the fixing of said gasket (10 ) during the coupling of the parts constituting the housing, because it is confined between the vertical wall under the thread and the base (30) of part (2 ) .
  • the thread (13 ' ) of the vertical wall (31) of part (2 ) faces the containment volume of the cup, said cup is formed by the base (30) and the vertical wall (31) of part (2 ) .
  • said at least two parts which couple through a thread are of a substantially cylindrical shape .
  • the lower part (2 ) with the shape of a cup comprises a base (30) and a vertical wall (31) of circular shape which protrudes vertically from said base (30) and on the vertical wall thereof a first thread (13 ' ) which faces the part of the base (30) is obtained, the said base (30) forming a support plane for the said gasket (10) and with said first thread ( 13 ' ) which is engaged with a second thread belonging to the other part (1) forming the housing.
  • the shape of a cup of the said lower part (2) determines the formation of a containment volume delimited by the said base (30 ) and by the vertical circular wall (31) and with said first thread (13 ' ) facing said inner volume .
  • said gasket (10) has such a diameter as to be inserted at least partially into the cavity (50 ) .
  • the upper part (1) of the housing with a generically cylindrical shape, and which is coupled to the lower part with a shape of a cup (2) comprises, in correspondence of the hem (13 ) thereof , a second thread (13 ' ' ) which is coupled to the said first thread (13 f ) of the cup- shaped body.
  • the thickness of the wall constituting the hem (13 ) where the second thread (13 ' ' ) is obtained is such as to stand above and to flatten the gasket (10) when the said upper part (1) is screwed in use to the cup- shaped lower part (2 ) .
  • the housing can be made of a plurality of materials, depending on the use and the used filters .
  • a filter system comprising at least one housing according to one or more of the previous features and at least one filter arranged into said housing.
  • Figure 1 shows a housing for filters for fluids according to the state of the art ;
  • Figure 2B illustrates all the components of the closure system of the housing, as per the prior art ;
  • Figure 3A shows the closure system of the housing subject of the invention
  • Figure 3B shows an esqploded view of the components of the closure system of the housing subject of the i nvent i on ;
  • FIG. 4 shows a sectional view of the closure system of the housing
  • Figure 5 shows the two parts constituting the housing and produced according to the present invention.
  • the subject of the present invention is a housing (1 , 2 ) for housing inside it at least one filter (16) for filtering a fluid, such as a liquid or a gas .
  • Said housing comprises at least two parts (1 , 2 , ) detachable from each other, for giving access to the inner seat wherein the filter is positioned in use and that can be rejoined to each other for closing the said inner seat in use .
  • At least one first thread and at least one second thread which are coupled to each other by screwing in order to enable a coupling with each other of said at least two parts .
  • the housings for filters that are described in the present description are used for industrial use, such as in the pharmaceutical , chemical , food field and so on.
  • both liquids and gas can he filtered in various operative process conditions (pressure, temperature, and so on. ) or a mixture of both.
  • Figure 1 , 2A and 2B describe the prior art in the production of the housing for filters for fluids , such as gas and/or liquid as mentioned.
  • a housing for filters for fluids has a substantially cylindrical shape .
  • the housings can be made of different materials , such as metals , plastic, and so on depending on the uses to which they are intended.
  • said housings are preferably made of metal (such as steel) .
  • cylindrical shapes with different transversal section such as square, rectangular, and so on, are not excluded and they are to be considered included into the present description.
  • the housing subj ect of the invention comprises two fitting cylindrical parts .
  • the upper part 1 can comprise a housing 9 for a pressure gauge , still as described in the section of the prior art .
  • the lower part of said housing can comprise two piping tubes for fluids, one tube for the fluids entering the housing and one tube for the fluids exiting from the housing.
  • said housing has a substantially cylindrical shape and comprises two parts (1 , 2 ) as described in the prior art .
  • the upper part 1 comprises a seat 9 for the pressure gauge to be able to measure and control the pressure of the fluids inside the housing during the filtering of said fluids .
  • the lower part 2 comprises two piping tubes (3 , 4 ) suitable for piping the entering and exiting fluids , respectively.
  • these piping tubes are an entry tube 3 and an exit 4 , respectively.
  • a discharge valve 5 can be present in the piping tube 3 for the entering fluids .
  • the coupling occurs by a simple screwing through two threaded surfaces with complementary threads that are coupled to each other .
  • figure 3 A shows by way of example a counter-clockwise way of rotation (right- turning) as shown by the direction of the arrow.
  • closure can also occur in the clockwise direction depending on the construction of the two parts (1 , 2 ) and particularly on the connection system described in detail below.
  • Part 2 of the housing therefore the lower part in the figure, according to figure 3B, has a different shape with respect to the prior art .
  • the said part 2 is generally in the shape of a cup that provides a base 30 along the perimeter of which a lateral circular wall 31 protrudes vertically.
  • a thread 13 1 is obtained internally on the said lateral wall 31 , generally circular .
  • the wall 31 together with the base delimit a space (or containment volume) into which the gasket 10 is inserted, and therefore, differently from the prior art , it is confined into a space delimited by the wall 31 and rests on the base 30. [00141] This makes the gasket not to move from the seat during the coupling phase of the two parts .
  • the gasket must be of a correct size, in such a way as to abut against the whole wall 31 that surrounds it .
  • the vertical wall 31 in the part facing the base 30 is therefore equipped with a first thread 13 ' .
  • the upper part 1 of the housing comprises around a circumferential outer perimeter thereof , in proximity of the hem thereof , a second thread 13' ' , which is coupled with the first thread 13 ' , such that it is possible to screw part 1 with respect to part 2 .
  • FIG. 3B an exploded view of the closure system of the two parts (1 , 2) of the housing is illustrated.
  • said closure system comprises a surface 13 having a thread 13 ' ' with regard to part 1 and a surface 31 of part 2 having a thread 13 ' thereof and these two threads are coupled.
  • a gasket 10 which is now inserted into the receiving volume obtained with the shape of a cup of the lower part 2 .
  • the thread 13 ' ' of surface 13 which is made outside part 1 is named screw.
  • surface 13 is an annular -circular area near the hem of body 1 and it concerns the hem itself .
  • Said thread can be of different profiles, preferably round. This thread can have a various number of threads .
  • the thread 13 ' that is obtained on the vertical wall 31 of body 2 is made, as mentioned, inside the vertical wall 31 , that is facing the inner volume of the cup, and it is also named female screw.
  • This thread 13 ' is equal to thread 13 1 1 in the type of profile and number of threads .
  • the profile of the thread of surface 31 is therefore preferably round and with the same number of threads of surface 13 .
  • Said thread 13 ' of surface 31 is complementary to thread 13 ' ' of surface 13 of part 1 in such a way as to couple to each other through the coaxial rotation of the two parts .
  • the threads of the parts 1 and 2 can be inverted, that is making an inner thread in part 1 and an outer thread in part 2 .
  • the gasket 10 which is interposed between part 1 and part 2 has a diameter smaller than the outer diameter of wall 31 in order to be inserted into the containment volume . [00158] Substantially, it is inserted. into the containment volume of the cup- shaped body delimited outwardly by the threaded wall 31.
  • the part 2 with the shape of a cup comprises a base 30 from which wall 31 protrudes vertically on which the inner thread 13 ' is made, that is facing the inner volume of the cup .
  • a part 19 diametrically narrower than the said cupshaped part (30 , 31) is connected to this cup (30 , 31) at the bottom such that a ninety- degree corner is formed at the point where base 30 and part 19 meet (see indication in figure 4 ) .
  • the above-mentioned cavity 50 generates a space which ensures a joint of the gasket 10 that, once it has been inserted, it lays wholly into the cavity 50 thereby being further prevented from exiting.
  • figure 4 shows a sectional view of the coupling between part 1 and part 2 .
  • the hem 13 of part 1 on which the thread 13 ' ' is obtained has a certain thickness and a circular shape such that it stands above and flattens the gasket 10 placed below.
  • the material of which the gasket 15 is made preferably silicone , has such properties as to be compressed and to be adjusted to the surface where it has been positioned, in this case into the cavity of part 2 , thereby ensuring the fixing of said gasket into part 2 .
  • part 2 With the shape of a cup which provides the vertical wall 31 , circular as well , where the thread 13 1 that is engaged with the thread 13 ' ’ is obtained .
  • part 2 of the housing there is shown how a filter 16 for fluids is inserted, for example in the shape of a filtering cartridge and the inner thread 13 ' relative to the cup 2 which is screwed with respect to part
  • the filter can be of any type and it generally fits into a suitable seat 35 shown in figure 3B . However, this is known art and this is not the specific subj ect of the invention.
  • the threads can be obtained with various methods known in the art , such as machine tool processing to remove shavings, such as lathe, as well as by cold plastic deformation or rolling .
  • the two parts of the housing are obtained through injection molding, for example in case of a plastic polymer, the same thread can be obtained directly by molding.
  • the type of processing can be various but , in all cases, there is anyway the presence of threads as the coupling system through which the two parts are joined by screwing thereby easily making them adjacent , coaxial and therefore firmly joined to each other in a releasable way.
  • this closure system of the housing enables an optimal tightness against leakage of fluids .
  • the housing can be used for the aimed purposes .
  • one of the two parts may comprise a collar mounted coaxially along the end of the said part which must be connected to the other part .
  • the said collar is mounted rotatably since it is engaged with a thread obtained at the end of the part to which it is connected, in such a way as to be able to rotate .
  • the other part provides a further thread in such a way that , by moving the two parts close to each other and by making the collar rotate, it slides onto the thread of the part on which it is arranged to be engaged with the thread of the other part thereby achieving the connection of the two parts .
  • both threads on the two parts are outside of the corresponding parts .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Joints With Pressure Members (AREA)

Abstract

La présente invention concerne un boîtier (1, 2) destiné à loger au moins un filtre (16) pour filtrer un fluide, tel qu'un liquide ou un gaz, ledit boîtier comprenant au moins deux parties (1, 2) amovibles et/ou pouvant être reliées l'une à l'autre, caractérisé par le fait que chacune desdites au moins deux parties (1, 2) comprend un filetage (13 ', 13 ") qui permet un accouplement et/ou un détachement à/de l'autre desdites au moins deux parties par vissage.
PCT/IT2022/000019 2022-04-27 2022-04-27 Boîtier pour filtres à usage industriel WO2023209742A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2022/000019 WO2023209742A1 (fr) 2022-04-27 2022-04-27 Boîtier pour filtres à usage industriel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2022/000019 WO2023209742A1 (fr) 2022-04-27 2022-04-27 Boîtier pour filtres à usage industriel

Publications (1)

Publication Number Publication Date
WO2023209742A1 true WO2023209742A1 (fr) 2023-11-02

Family

ID=82308285

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2022/000019 WO2023209742A1 (fr) 2022-04-27 2022-04-27 Boîtier pour filtres à usage industriel

Country Status (1)

Country Link
WO (1) WO2023209742A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9311166U1 (de) * 1993-07-27 1993-11-04 Biolit Filtertechnik und Service GmbH, 57462 Olpe Flüssigkeits- und Luftfilter
US20070158263A1 (en) * 2003-04-10 2007-07-12 Pall Corporation Filter assemblies, filter cartridges and methods for removing filter cartridges from filter assemblies
US20200398199A1 (en) * 2018-02-15 2020-12-24 Cummins Emission Solutions Inc. Filtration assembly for use in aftertreatment systems for internal combustion engines
CN212407576U (zh) * 2020-03-03 2021-01-26 九牧厨卫股份有限公司 一种阀体、角阀和水处理装置
WO2022118147A2 (fr) * 2020-12-04 2022-06-09 Giacomini S.P.A. Groupe de filtration comprenant une soupape sphérique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9311166U1 (de) * 1993-07-27 1993-11-04 Biolit Filtertechnik und Service GmbH, 57462 Olpe Flüssigkeits- und Luftfilter
US20070158263A1 (en) * 2003-04-10 2007-07-12 Pall Corporation Filter assemblies, filter cartridges and methods for removing filter cartridges from filter assemblies
US20200398199A1 (en) * 2018-02-15 2020-12-24 Cummins Emission Solutions Inc. Filtration assembly for use in aftertreatment systems for internal combustion engines
CN212407576U (zh) * 2020-03-03 2021-01-26 九牧厨卫股份有限公司 一种阀体、角阀和水处理装置
WO2022118147A2 (fr) * 2020-12-04 2022-06-09 Giacomini S.P.A. Groupe de filtration comprenant une soupape sphérique

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