WO2008036898A1 - Récipients sous pression et système pour charger des cartouches filtrantes à l'intérieur de ceux-ci - Google Patents
Récipients sous pression et système pour charger des cartouches filtrantes à l'intérieur de ceux-ci Download PDFInfo
- Publication number
- WO2008036898A1 WO2008036898A1 PCT/US2007/079161 US2007079161W WO2008036898A1 WO 2008036898 A1 WO2008036898 A1 WO 2008036898A1 US 2007079161 W US2007079161 W US 2007079161W WO 2008036898 A1 WO2008036898 A1 WO 2008036898A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure vessel
- tool
- cartridge
- bore
- loading tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
- B01D63/12—Spiral-wound membrane modules comprising multiple spiral-wound assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
- B01D63/106—Anti-Telescopic-Devices [ATD]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/24—Tools used for the removal of filters
Definitions
- the invention relates to elongated pressure vessels designed to hold multiple cylindrical filtration cartridges, particularly cartridges of the crossflow filtration type, and to systems and methods for facilitating the loading of such cylindrical filtration cartridges.
- 6,632,356 is an example of a patent showing such a pressure vessel having a length such as to accommodate a multitude of cylindrical cartridges or elements of the spiral wound membrane design that are designed for use in separation or filtration processes.
- the end plate closure is only schematically shown.
- U.S. Patents Nos. 5,720,411; 5,866,001; 6,165,303; and 6,858,541; and published patent application WO88/03830 show end closures designed to provide full bore access to the interior of such an elongated tubular pressure vessel that will accommodate a plurality of such cylindrical filtration or separation cartridges. The disclosures of all these patents are expressly incorporated herein by reference.
- a loading tool can be designed that can interengage with a groove in the entrance bell end and thereby become mated with the entrance end section of the pressure vessel. Once secured in place, the tool will then support at least the leading end of a cylindrical cartridge being loaded into the vessel. Such cartridge can then be readily pushed or slid through the entrance guided by this loading tool, or a tool that supports the length of the cartridge may be automated to drive the cartridge into the interior bore of a pressure vessel.
- the invention provides a cartridge loading tool for combination with a pressure vessel at one end thereof where there is full bore access which is designed to be closed by a removable end closure.
- a removable end closure is generally secured in place through the use of a locking ring arrangement of some type that is received in a circumferential interior groove.
- a groove is commonly provided by a metal ring insert which is wound in a filament- wound, fiber-reinforced polymer (FRP) vessel) (see '303 patent), or a groove of suitable shape may be formed or machined in the interior surface.
- FRP fiber-reinforced polymer
- a simple loading tool may incorporate a thin, half-tubular structure having a concave, arcuate upper surface that will lie in substantial axial alignment with a lower surface portion of the pressure vessel internal bore.
- the arcuate structure is accommodated in the annular void region in the bell end section in the space provided by the constant diameter counterbore. Attached to this support structure is a collapsible locking ring that is proportioned to be tightly received in the circumferential groove in the bell end section of the pressure vessel, e.g.
- the support structure is dimensioned to extend outward through the pressure vessel entrance or bell end to an exterior location where it can receive at least the leading end of a cylindrical cartridge and thereby facilitate its loading into the pressure vessel.
- a mechanized loading tool may alternatively be provided which employs an arcuate support ring structure that is supported by abutting the end surface of the bell end section of the pressure vessel and secured in place by four axially extending shafts that are journalled therein and that have transverse fingers at the ends that can be rotated into engagement with the near wall of the groove in the bell end section interior surface.
- An arcuate plate extends from the entrance end of the pressure vessel to a transition section to the interior bore, and its upper surface is substantially aligned with the interior of the bore. This plate and the four rotatable shafts are accommodated in the annular void region provided by this single step counterbore of constant diameter, with space left over for accommodating the flange of a side port fitting if desired.
- a motor-powered drive mechanism is provided wherein a pusher plate is driven toward the entrance end of the pressure vessel along a cradle that supports a cylindrical filtration cartridge.
- the invention provides a system for filtering liquids that employs a plurality of cylindrical filtration cartridges, which system comprises a generally tubular pressure vessel having an interior bore of circular cross-section, and having a length sufficient to hold a plurality of the filtration cartridges, a removable end closure for closing at least an upstream end of said vessel, said vessel having a counterbore at said end in which said removable end closure is seated, means defining a circumferential groove formed in an interior wall of said counterbore for receiving circular locking means to secure said removable end closure in a closed position, and a loading tool for use in sliding said cartridges through said upstream end and into said bore of said vessel, said loading tool having (i) structure that will support at least the forward end of a cylindrical cartridge at a location exterior of said upstream end of said vessel and aligned with said bore, and (ii) means attached to said support structure for engagement with said circumferential groove defining means in a manner that secures said support structure in a cartridge-loading orientation in said upstream end
- the invention provides a method for supplying cylindrical filtration cartridges to a generally tubular pressure vessel, which pressure vessel has a circular interior bore and full-bore access at at least an upstream end thereof, said method comprising the steps of providing a loading tool for mating with the upstream end portion of the pressure vessel so that a portion of said tool will be located within the confines of said pressure vessel and an exterior portion of said tool will extend rearward from the upstream end of the pressure vessel, which tool has structure for supporting at least the forward end of a filtration cartridge, positioning said loading tool in loading orientation at the entrance to the upstream end of the pressure vessel, securing said loading tool in place by interengaging said tool with means defining an internal circumferential groove provided near the entrance to the pressure vessel, and disposing a cylindrical filtration cartridge on said loading tool and sliding said cartridge into the bore of the pressure vessel.
- FIGURE 1 is a fragmentary cross-sectional view of the bell-end region of a pressure vessel which is designed to hold a plurality of cylindrical crossflow filtration cartridges.
- FIGURE 2 is a perspective view of the pressure vessel of FIG. 1, shown in cross-section, wherein the end closure and two diametrically opposed side port fittings are installed.
- FIGURE 3 is a perspective view of a cartridge loading tool embodying various features of the present invention that is designed to mate with the pressure vessel illustrated in FIGS. 1 and 2.
- FIGURE 4 is a schematic perspective view showing the loading tool of FIG. 3 mated to the end of the pressure vessel shown in FIG. 1, with a cylindrical separation cartridge being loaded on the tool for insertion into the pressure vessel.
- FIGURE 5 is a perspective view of another cartridge loading tool embodying various features of the present invention that is motor driven and is likewise designed to mate with the pressure vessel illustrated in FIGS. 1 and 2.
- FIGURE 6 is another perspective view of the loading tool of FIG. 5 taken from a different angle.
- FIGURE 7 is an enlarged fragmentary view showing additional detail of the support and latching portion of the cartridge loading tool of FIG. 5, with the slide plate omitted.
- FIGURE 8 is a schematic perspective view showing the loading tool of FIG. 5 mated to the end of the pressure vessel shown in FIG. 1, with the side port fitting omitted, with a cylindrical separation cartridge loaded on the tool and beginning its insertion into the pressure vessel.
- FIGURE 9 is a schematic view similar to FIG. 8 shown with the pressure vessel removed except for the metal ring insert, to illustrate the interengagement of the transverse fingers at the ends of the four rotatable shafts with the grooved ring insert.
- pressure vessels for crossflow filtration can be made from any suitable material that has the strength and stability to withstand the superatmospheric pressure which the pressure vessel will be designed to accommodate during a filtration or separation operation.
- stainless steel and other corrosion- resistant alloys may be used to construct such a pressure vessel shell
- the most popular construction for pressure vessel shells of this type today is that of fiber-reinforced polymeric (FRP) resin material, e.g., fiberglass-reinforced epoxy or polyurethane resins.
- FRP fiber-reinforced polymeric
- a pressure vessel that is designed to accommodate six spiral wound cylindrical cartridges, each having an individual length of about 40 inches, might have a shell or casing with an overall length of about 260 inches, which would include bell-end portions at the respective ends that might each be about 10 inches in length.
- 40-inch cartridges have been commonly constructed with 4-inch and 8-inch diameters; however, at the present time, there is interest in employing spiral wound, semipermeable membrane filtration cartridges having diameters of both 12 inches and 16 inches, which cartridge would very likely be about 40 inches in length, but might be even longer.
- FIG. 1 illustrates a pressure vessel 11 having a full bore opening suitable for crossflow filtration or separation.
- the pressure vessel 11 is designed so it can be produced by conventional filament-winding about a mandrel, as generally described with respect to FIG. 2 in the '303 patent.
- the vessel will have a central casing section 13 that has a cylindrical interior bore 15 of circular cross-section that is sized to be just slightly greater than the diameter of the cylindrical filtration cartridges that will be accommodated therewithin, e.g. 8 in. or 16 in.
- Each end of the pressure vessel 11 is preferably formed as a bell end section 17 of greater interior and exterior diameter than the central casing section 13.
- a suitable spacer is positioned on a mandrel which is shaped to provide an interior sidewall in the bell end of greater diameter and a short frustoconical transition section between the bell end and the central bore 15.
- An annular insert 19 that is either shaped to define an interior groove 21, or which itself is formed with a central groove, is slidably located on the spacer. In the latter situation, the insert remains as an integral part of the pressure vessel 11, whereas it is removed in the former after removal of the spacer.
- the pressure vessel is trimmed so that bell end section 17 has a flat end surface 22; its interior cylindrical entrance wall 23 of constant diameter extends from this flat end surface to a short, frustoconical, transition surface 25 that leads to the interior bore 15 of the pressure vessel.
- the pressure vessel may be provided with two side ports by simply cutting two diametrically opposed circular passageways through the sidewall of the bell end section 17 in the region between the annular groove and the transition surface 25; two side port fittings 27 are then installed within such radial passageways, generally at each end of the vessel.
- the fittings may have peripheral flanges 27a at their inward ends that are accommodated in the annular void region of the bell end section.
- the diametrically opposed circular passageways in the bell end may be counterbored to receive the peripheral flanges of side port fittings.
- FIG. 2 illustrates an end plug 31 that is used to effectively seal the upstream bell end of the pressure vessel 11.
- the end plug 31 is circular in shape, having a peripheral surface 33 that is a section of a right circular cylindrical surface. Its diameter is such that it is slidably received in the bell end of the vessel, being just slightly less than the diameter of the entrance surface 23, which is of constant diameter extending to the transition section 25.
- the plug's outer surface 33 has a recess wherein an annular seal 35 is carried.
- An axial passageway extends centrally through the core portion of the end plug 31 which accommodates a narrow diameter section of a tubular connector 41, the inward end section of which serves as a female connector that accepts the permeate discharge conduit extending from a cylindrical filtration cartridge, as well known in this art and shown, e.g., in U.S. Patent No. 6,632,356.
- a locking ring arrangement in the form of a segmented ring 43 is shown; it is received in the groove 21 provided in the metal ring insert 19 and secures the end plug 31 in its closed position in the bell end section 17, as well known in this art.
- the groove to receive the locking ring segments could be formed in the FRP structure and could have a different cross-sectional shape if desired.
- the removable end plug 31 may also instead be secured in place by a helical locking ring, e.g. as illustrated in U.S. Design Patent No. D468,392, or by a snap ring (e.g., U.S. Patent No. 5,866,001) or by some other suitable type of a locking arrangement used in this art.
- a helical locking ring e.g. as illustrated in U.S. Design Patent No. D468,392
- a snap ring e.g., U.S. Patent No. 5,866,001
- the entrance interior surface 23 of the pressure vessel is of constant internal diameter (ID) all the way to the short transition surface 25, and the exterior surface of the bell end section 17 is generally constant in diameter except for being slightly larger in the region where the grooved ring insert 19 is located.
- ID internal diameter
- this constant ID design construction facilitates fabrication of pressure vessels by filament winding on a mandrel in a straightforward manner; moreover, it readily provides an annular void space of sufficient depth in the bell-end of the vessel (axially between the groove 21 and the transition surface 25) wherein a flange 27a at the inward end of a side port fitting 27 can reside. This can be of value to avoid the need to wind the bell-end sections to have a sidewall of increased wall thickness to permit the subsequent creation of interior counterbores in the radial passageways to accommodate flanges of side port fittings.
- the present invention proposes to solve this problem by providing a cartridge-loading tool 51 that mates with pressure vessel 11 at its entrance end and provides a support structure or slide which greatly facilitates installing cylindrical cartridges.
- a cartridge-loading tool 51 that mates with pressure vessel 11 at its entrance end and provides a support structure or slide which greatly facilitates installing cylindrical cartridges.
- FIG. 4 which includes an elongated main body support structure 53 having a concave arcuate upper surface 55 that is preferably a section of the surface of a cylinder that essentially matches the interior bore 13 of the pressure vessel.
- the support structure 53 has a support ring segment 57 rigidly affixed to its outer surface which is aligned so as to be perpendicular to the center line of the arcuate surface 55.
- the ring segment 57 preferably has a thickness, a shape and a size such that it will be snugly received within the circumferential groove 21 that is provided in the entrance surface 23 of the counterbore that receives the segmented locking ring 43; as a result, the seated support ring segment 57 provides stable support for the concave support structure 53 when the tool is disposed in the upstream entrance end section of the pressure vessel, where it extends past the side ports to the transition surface 25 that leads into the bore 13 of the pressure vessel, as seen in FIG. 4.
- the illustrated arcuate segment 57 is slightly less than a semicircular segment, (e.g. about a 120° to a 170° segment and preferably about 140° to 150°), and it is interconnected at its ends with a complementary arcuate segment 61 of about the same size and shape. Interconnection of the two support ring segments is via a suitable mechanism that permits transformation of the combined support segments back and forth between a collapsed orientation and an expanded circular orientation. Illustrated are pairs of links 63 that are arranged as toggle mechanisms such that, when both pairs are moved radially outward over center while the support segments 57, 61 are received in the circumferential groove 21, such action locks the expanded support ring assembly tightly within the groove 21.
- the support ring arrangement is also stable in its collapsed orientation because the arcuate segments 57 and 61 preferably have flat, facing end surfaces 65 which abut each other; this allows the movable upper arcuate segment 61 to rest on the lower fixed ring segment 57, forming a flattened circle.
- the links 63 are preferably proportioned to have a radial dimension just less than one-half the radial dimension of the ring segments 57, 61, and about equal to the depth of the groove 21.
- each pair of links 63 is displaced generally radially inward, reducing the effective diameter of the collapsed ring assembly such that it can be easily inserted axially through the entrance into the bell end section 17 of the vessel to the region of the groove 21.
- the upper segment 61 is moved upward and away from it until the upper segment also seats in the groove 21.
- First one toggle mechanism and then the other is manually moved over center to reach the expanded circular orientation, as shown in FIG. 3. The tolerances are such that over center movement of the latter toggle snaps it in place and secures the support ring assembly snugly within the circumferential groove 21.
- the interior end portion of the support structure 53 extends to the transition section 25 where it leads directly to the internal bore 13 of the pressure vessel.
- the arcuate plate-like support structure 53 is at least about a 120° arcuate sector of a cylinder; it commonly constitutes an arc between about 120° and about 170° to provide a desired smooth slide path for a cartridge into the bore 13.
- the overall length of the support structure 53 is such that it extends rearward out of the end of the pressure vessel a distance sufficient to facilitate loading of at least the front end portion of a cylindrical filtration cartridge onto the arcuate surface 55 as depicted in FIG. 4, but preferably not so far as to create a potential obstacle.
- a cylindrical cartridge is placed so that its leading end rests in the trough that is provided by the concave slide section of the loading tool as seen in FIG. 4. It can then be slid smoothly through the entrance end of the pressure vessel and all the way into the closely fitting interior bore 13 wherein it will be automatically joined in end-to-end relationship with other such cartridges already loaded.
- the pair of toggle mechanisms 63 are manually moved over center, radially inward to unlatch the support ring assembly and collapse it.
- the tool 51 is then manually raised to lift the lower arcuate segment 57 out of the circumferential groove 21 and withdrawn to allow the installation of the end closure.
- FIGS. 5 and 6 Illustrated from different perspectives in FIGS. 5 and 6 are two views of an alternative embodiment of a loading tool 71 that is motor-driven.
- the loading tool 71 includes an annular support structure 73 that mates with the flat entrance or bell end of a pressure vessel 11.
- a cartridge-loading cradle assembly 75 is supported from the annular support structure 73, and an arcuate slide plate 77 extends forward therefrom through the arcuate support structure and for the length of the bell end section 17 of the pressure vessel.
- the annular support structure 73 functions as a hollow plug; it has the shape of a stepped ring with a flat, radially outer surface 79 that abuts the flat end surface 22 of the pressure vessel, and a short, radially inner, tubular extension 81 protrudes therefrom and is received snugly within the entrance to the counterbore of the pressure vessel, to assure proper alignment of the loading tool.
- an optional clamping device 83 can be included, having a thumb screw mechanism or the like, that would allow it to be tightened so as to clamp the support structure 73 securely to the end of the pressure vessel 11.
- shafts 85 that are positioned at 90° increments; they are journalled in the support structure and extend completely therethrough.
- transverse fingers 87 at the ends of the shafts 85 extend radially therefrom and terminate at pointed ends. These fingers are shaped and oriented to cam against and engage the front wall of the locking ring groove 21 that is provided in the counterbore, e.g. in the metal insert 19.
- Pivotal control arms 89 are attached to the opposite, outward ends of the shafts 85; after the annular support 73 is in position in the bell end section, these control arms are turned to rotate the shafts to align the fingers radially outward where they engage and cam against the near wall of the circumferential groove 21 at four equiangularly spaced points, i.e. 90° apart. If the rear wall of the groove 21 is not perpendicular to the pressure vessel centerline, the transverse fingers are similarly offset from perpendicular.
- the arcuate slide plate 77 is aligned so its concave upper surface extends from the annular support 73 through the bell end section 17 in axial alignment with the interior surface of the interior bore 13 of the pressure vessel.
- the length of the slide plate 77 is such that it extends to the transition section 25 of the pressure vessel bell end; thus, it provides a smooth pathway along which a cylindrical cartridge can be slid through the bell end of the pressure vessel and past the locking ring groove 21 and any flange 27a of a side port fitting, which is accommodated in the void region provided by the counterbore.
- the thickness of the annular slide plate 77 is such that it would be juxtaposed upon or just above the surface of any side port fitting flange 27a that was included within the lower region of the pressure vessel, as depicted in FIGS. 1 and 2.
- the cradle assembly 75 which extends axially outward from the support structure 73 includes three rods or tubes 91 that are supported at one end in the support structure 77 and at the opposite end in a plate portion 93 of a drive mechanism 95 schematically shown in FIGS. 5, 8 and 9.
- the three rods 91 are parallel to one another and are placed at about 60° angular increments about the circular opening through the annular support 73; they are positioned so that their cylindrical surfaces are essentially tangent to the interior cylindrical surface of the annular support 73.
- the three parallel rods 91 thus serve to cradle a cylindrical filtration cartridge 109 and support it in axial alignment with the aperture through the support structure 75.
- the cradle assembly additionally includes two elongated, parallel, threaded shafts 97, which are cut to have worm screw threads in helical fashion along their surfaces.
- the threaded shafts 97 are journalled to rotate in the annular support structure 73 at two diametrically opposed locations therein.
- the opposite ends of the shafts 97 pass through the drive plate 93, where they have a pair of sheaves 99 affixed thereto.
- the sheaves 99 are driven by a drive belt 101 so as to rotate in the same direction when powered by a motor (not shown).
- a pusher plate 103 is slidingly supported on the three rods 91 so it can move axially therealong to push a cartridge 109 through the annular support structure 73 and into the bore of the pressure vessel.
- a pair of nuts 105 mounted in the pusher plate 103, ride along the worm screw threads and drive the pusher plate 103 in either direction depending upon whether the worm shafts 97 are being turned clockwise or counterclockwise.
- the pusher plate 103 has a central cutout 107 which accommodates the spigot end of the permeate tube 111 that traditionally extends from one end of a cylindrical filtration cartridge 109, as seen in FIGS. 8 and 9; this tube 111 is received within the female coupling 41 associated with an end closure.
- FIG. 8 shows the loading tool 71 latched in place at the entrance end to a pressure vessel 11 , with the side port fitting omitted simply for purposes of clarity.
- a cylindrical filtration cartridge 109 has been loaded in the cradle portion of the tool, and it is shown as it is beginning to be slid into the annular support structure 73.
- the pusher plate 103 abuts the end of the cylindrical cartridge 109, and the permeate discharge tube 111 extends through the cut out opening 107 provided in the plate. In this position, the cartridge 109 would have become axially interconnected with the permeate tube of the next cartridge 109a (FIG. 8) in the pressure vessel bore.
- FIG. 9 is provided simply as a schematic representation as to better show the engagement between the loading tool 71 and the bell end section 17 of the pressure vessel.
- the pressure vessel tubular body is omitted except for the metal ring insert 19 that provides the locking ring groove 21 in the bell end.
- the four rotatable shafts 85 have their control arms 89 turned to radially outward orientations where the transverse fingers 87 are likewise aligned radially outward, in which orientation, they cam and seat against the near wall of the groove 21; thus, the four fingers hook into this groove and tightly support the loading tool 71 at four 90° spaced apart locations in the bell end section 17 of the pressure vessel.
- This same orientation of shafts 85 is illustrated in the enlarged FIG. 7 view of the loading tool 71 where the tool is shown apart from the pressure vessel.
- the length of the cradle portion 75 of the tool should be sufficient to accommodate at least one filtration cartridge 109, and should some manual interconnection between adjacent cartridges be desired, a slightly longer cradle may be preferred to afford such manual interconnection between a cartridge 109a previously slid some distance into the bell end section and the next cartridge 109 being loaded.
- a slightly longer cradle may be preferred to afford such manual interconnection between a cartridge 109a previously slid some distance into the bell end section and the next cartridge 109 being loaded.
- the control arms 89 are turned to disengage the four fingers 87 from contact with the wall of the groove 21, and the loading tool 71 is withdrawn.
- a lead-in chamfer on the tubular connector 41 would guide the entry of the end of the permeate discharge conduit 111 into the female connector portion of the tubular connector 41. With the end plug 31 in place, locking ring segments 43 or some other suitable locking device would be installed.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Le système selon l'invention permet de filtrer des liquides en utilisant plusieurs cartouches cylindriques dans un récipient tubulaire sous pression (11) comprenant un accès à passage intégral au niveau de son extrémité en amont et un bouchon de fermeture d'extrémité logé dans son trou opposé, ledit bouchon étant fixé par un dispositif de bague de serrage. Le chargement de cartouches dans le récipient sous pression est facilité par un outil de chargement amovible (51) qui est soutenu à l'extrémité d'entrée via une structure de support (53) par la mise en prise avec une rainure périphérique (19) utilisée pour fixer ledit bouchon de fermeture d'extrémité. L'outil comprend une plaque courbe en forme d'auge qui mène au trou intérieur transversal circulaire (15) et s'étend vers l'arrière de l'extrémité d'entrée du récipient sous pression.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84678106P | 2006-09-22 | 2006-09-22 | |
| US60/846,781 | 2006-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008036898A1 true WO2008036898A1 (fr) | 2008-03-27 |
Family
ID=38738825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2007/079161 Ceased WO2008036898A1 (fr) | 2006-09-22 | 2007-09-21 | Récipients sous pression et système pour charger des cartouches filtrantes à l'intérieur de ceux-ci |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2008036898A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014023975A (ja) * | 2012-07-24 | 2014-02-06 | Hitachi Ltd | 逆浸透膜エレメント取外し治具、逆浸透膜エレメント取外し装置、逆浸透膜エレメントの取外し方法 |
| US11857927B2 (en) | 2021-11-03 | 2024-01-02 | Complete Water Solutions, LLC | Reverse osmosis filter ram apparatus, systems, and methods of using the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1461407A1 (de) * | 1964-09-24 | 1968-12-19 | Metallgesellschaft Ag | Kesselfilter fuer Abwasserschlaemme |
| US5379330A (en) * | 1993-10-12 | 1995-01-03 | General Electric Company | Inner filter removal tool |
| US5484528A (en) * | 1993-09-13 | 1996-01-16 | Organo Corporation | Filtration equipment for hollow fiber module |
| US6165303A (en) * | 1996-03-20 | 2000-12-26 | Codeline Corporation | Method of making tubular pressure vessel having an end closure |
| WO2003053540A1 (fr) * | 2001-12-21 | 2003-07-03 | Pall Corporation | Dispositif de filtration |
| FR2852859A1 (fr) * | 2003-03-31 | 2004-10-01 | Solvay Polyolefins Europ Franc | Dispositif d'extraction non destructrice de cartouches filtrantes de leur support de maintien |
-
2007
- 2007-09-21 WO PCT/US2007/079161 patent/WO2008036898A1/fr not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1461407A1 (de) * | 1964-09-24 | 1968-12-19 | Metallgesellschaft Ag | Kesselfilter fuer Abwasserschlaemme |
| US5484528A (en) * | 1993-09-13 | 1996-01-16 | Organo Corporation | Filtration equipment for hollow fiber module |
| US5379330A (en) * | 1993-10-12 | 1995-01-03 | General Electric Company | Inner filter removal tool |
| US6165303A (en) * | 1996-03-20 | 2000-12-26 | Codeline Corporation | Method of making tubular pressure vessel having an end closure |
| WO2003053540A1 (fr) * | 2001-12-21 | 2003-07-03 | Pall Corporation | Dispositif de filtration |
| FR2852859A1 (fr) * | 2003-03-31 | 2004-10-01 | Solvay Polyolefins Europ Franc | Dispositif d'extraction non destructrice de cartouches filtrantes de leur support de maintien |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014023975A (ja) * | 2012-07-24 | 2014-02-06 | Hitachi Ltd | 逆浸透膜エレメント取外し治具、逆浸透膜エレメント取外し装置、逆浸透膜エレメントの取外し方法 |
| US11857927B2 (en) | 2021-11-03 | 2024-01-02 | Complete Water Solutions, LLC | Reverse osmosis filter ram apparatus, systems, and methods of using the same |
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