WO1999032209A1 - Filter module for liquids - Google Patents

Filter module for liquids Download PDF

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Publication number
WO1999032209A1
WO1999032209A1 PCT/EP1998/008287 EP9808287W WO9932209A1 WO 1999032209 A1 WO1999032209 A1 WO 1999032209A1 EP 9808287 W EP9808287 W EP 9808287W WO 9932209 A1 WO9932209 A1 WO 9932209A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
filter
dirt
backwashing
retention device
Prior art date
Application number
PCT/EP1998/008287
Other languages
German (de)
French (fr)
Inventor
Imre Marton
Original Assignee
Filterwerk Mann+Hummel Gmbh
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 Filterwerk Mann+Hummel Gmbh filed Critical Filterwerk Mann+Hummel Gmbh
Publication of WO1999032209A1 publication Critical patent/WO1999032209A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/04—Combinations of filters with settling tanks
    • B01D36/045—Combination of filters with centrifugal separation devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/668—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with valves, e.g. rotating valves for coaxially placed filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/908—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding provoking a tangential stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
    • B01D33/275—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces using contiguous impervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D33/503—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles the backwash arms, shoes acting on the cake side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B01D33/727—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding provoking a tangential stream
    • 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
    • B01D35/301—Constructions of two or more housings
    • B01D35/303—Constructions of two or more housings the housings being modular, e.g. standardised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis

Definitions

  • the invention relates to a filter module for liquids.
  • Such liquid filters are known from DE-PS 32 09 216, in which a hollow cylindrical filter element is provided. This separates a filtrate space from a dirty liquid space within a filter housing.
  • the liquid filter also contains a dirt drainage channel, which is arranged parallel to the axis of the filter element and has a U-shaped cross section. To clean the surface of the liquid filter, the latter is rotated about its axis and the dirt discharge channel is opened, so that liquid flows through the filter fabric arranged on the surface of the filter element due to the pressure prevailing inside the hollow cylindrical filter element. The particles adhering to the filter fabric are carried along by the flow and discharged via a dirt drainage channel.
  • the size of the particles contained in the liquid to be cleaned cannot be defined exactly, so that under certain circumstances particles are also washed up which have a multiple of the filter gap.
  • the cleaning of such particles with the known backwashing device is made more difficult by the fact that this backwashing device on the one hand has a U-shaped cross section that is as closed as possible and only open to the filter area, but on the other hand larger particles on the circumference of the filter element should also get into the dirt drainage channel. This results in a not inconsiderable gap at the front edge of the dirt drainage channel, through which liquid enters the dirt drainage channel from the dirty liquid space. This significantly reduces the backwashing action on the filter element.
  • a gap filter for lubricating oil which is provided with a cleaning element.
  • the cleaning element has a rinsing channel and on the one hand has openings facing the filter surface for backwashing the gap filter and an inlet gap for pre-cleaning the filter surface.
  • coarse dirt is to be removed on the one hand by means of the inlet slit, and the dirt accumulated in the filter slits via the backwashing openings.
  • a disadvantage of this system is that the backwashing effect is greatly reduced by the arrangement of the inlet gap for coarse dirt.
  • the cleaning element which has a compact combination, has the disadvantage that dirt of different compositions cannot be removed effectively.
  • the inlet gap should be kept as small as possible so as not to unnecessarily influence the backwashing effect.
  • a smaller inlet gap has the disadvantage that coarse dirt is deposited in front of the cleaning gap and cannot be removed with it.
  • the low backwashing effect of the cleaning element is further reduced by backwashing a very wide circumferential area of the filter and thus greatly reducing the speed of the backwashing flow.
  • a backflushable liquid filter is known from DE 28 52 611 A1, which has a conical filter cage which is flowed through from the outside inwards and is firmly anchored in a housing provided with an inlet and an outlet.
  • the disadvantage here is that the conical arrangement of the filter cage in particular means that the filter can be adapted to changing boundary conditions, e.g. B. by an extended centerpiece, or by a centerpiece with a changed radius is not feasible.
  • the invention has for its object to provide a filter that avoids the disadvantages mentioned and with the dirty liquid, which is loaded with particles of different sizes, is always optimally filtered and an effective cleaning of the filter element takes place, the assembly being highly adaptable per se should have changing boundary conditions.
  • This object is achieved in that components are combined to form a module and in that means are provided with which the components are connected to one another, the module having an upper part and a lower part and at least one central part, the module having at least one raw liquid inlet and has a clean liquid outlet and at least one dirt retention device.
  • any number of middle parts in particular with different lengths and / or diameters, can be arranged in particular along the longitudinal axis, so that the assembly can be adapted very flexibly to changed operating parameters or can be extended as desired.
  • connection flanges to be positioned as required. Only the connection module is varied accordingly. It is also possible to use welded versions. Compared to the designs carried out by casting, these have the advantage that even small quantities can be easily realized.
  • connection flanges can be positioned just as flexibly since they can be arranged between zero and three hundred and sixty degrees and are therefore easily adaptable to existing systems. It is also conceivable to weld the various components together.
  • the assembly has at least one backwashing inlet and / or outlet and the filter backwashing device corresponding therewith. Furthermore, it can be provided according to the invention that the assembly has at least one cyclone, with the aid of which the coarser part of the dirt load can be separated out.
  • the assembly has at least one flow guide with which, depending on z. B. geometric sizes, such as the radius and the type of dirt, or their shape, weight or size, different flow profiles can be realized.
  • the possibility of designing the flow guiding device with a profile in which the flow velocity is maintained in the lower region is advantageous to design the flow control device in such a way that turbulent areas are avoided, which may adversely affect pre-separation. It has proven to be expedient to design the flow guide with a long length. This achieves an optimal cyclone effect. Especially in the lower area, a high degree of separation can be achieved due to the cyclone effect.
  • the assembly has at least one flow guide that is adjustable in height and thus can actively influence the flow guidance.
  • the assembly has at least one sludge trap with which the separation behavior, in particular of the coarse dirt, can be influenced or improved.
  • the dirt retention device has a gap filter insert.
  • Gap filters in particular when separating sludge, have excellent separating and backwashing properties, which come into their own in this modular arrangement.
  • filter stars in alternative developments, it is provided to use so-called filter stars, sheaths, or pockets.
  • screen, paper, foil, plate gap, wire gap or canned filter inserts in other alternative ven configurations conceivable to use screen, paper, foil, plate gap, wire gap or canned filter inserts.
  • a gap filter for the dirt retention device instead of a gap filter for the dirt retention device, other filter inserts can also be used.
  • screen cloth, foils or paper as a dirt retention device.
  • an adaptation of this device is conceivable.
  • the assembly has at least one dirt outlet.
  • the filter backwashing device of the assembly has at least one scraper which mechanically supports the backwashing process, reduces the backwashing phase and improves the result.
  • the assembly has a high degree of adaptability to changing boundary conditions.
  • Figure 1 shows a section through a three-part assembly with diffuser in
  • Top Figure 2 shows a section through a four-part assembly with a cyclone in the lower part
  • Figure 3 shows a section through a four-part assembly with diffuser
  • Figure 4 shows a section through a five-part assembly
  • Figure 5 shows a detail of a gap filter insert
  • FIG. 6 shows a filter system
  • Figure 7 shows a variant of a filter system
  • an assembly which consists essentially of the components upper part 1, lower part 2 and middle part 3.
  • the upper part has a raw liquid inlet 4 and the corresponding clean liquid outlet 5, which, however, is separated by the dirt retention device 6, which keeps the dirt particles contained in the liquid to be cleaned away from the clean liquid side.
  • the dirt retention device 6 is essentially accommodated in the area of the middle part 3.
  • the flow guide 11, which sets the liquid into a tangential flow within the assembly, is in this embodiment in the upper part 1.
  • the flow guide 11 shown in this embodiment has a thread-like channel shape, which guarantees a defined flow.
  • the dirt retention device 6 has a gap filter insert 13 as the filter medium.
  • the separated dirt particles leave the assembly under the force of gravity through the dirt outlet 14 arranged in the lower part 2.
  • the individual parts of the assembly are connected to one another by means of connecting means 16.
  • the upper part 1 is with the central part 3 Screws evenly distributed around the circumference together with the associated nuts 16.
  • the middle part has a thread located in the surface of the middle part, which corresponds to the associated thread in the middle part 3. So that the dirt retention device can be rotated, so that the can surface can be backwashed over the entire surface by means of the rigidly positioned filter backwashing device, the latter has a dirt retention device drive 17.
  • FIG. 2 shows an assembly which, as also shown in FIG. 1, consists of the components upper part 1, lower part 2 and two middle parts 3, a cyclone 10 also being located in the lower part 2.
  • the energy requirement is very low, which is particularly suitable for energy-saving purposes.
  • the upper part 1 has a raw liquid inlet 4 and the corresponding clean liquid outlet 5, which, however, is separated by the dirt retention device 6, which keeps the dirt particles contained in the liquid to be cleaned away from the clean liquid side.
  • the dirt retention device 6 is essentially accommodated in the area of the upper middle part 3.
  • the backwashing process in FIG. 2 is additionally supported by means of a backwashing inlet 7, through which a backwashing medium can be introduced.
  • the backwash inlet can perform several functions. On the one hand, this is the desludging of the clean side, on the other hand the support of backwashing and, when using the automatic filter, the use as backwash discharge or as desludging of the clean side or as backwash support.
  • the flow guide 11 which sets the liquid into a tangential flow within the assembly, is located in the middle part 3 in this embodiment. In this embodiment, there is the possibility of the flow guide 11 in different positions.
  • Fasten NEN as is shown by the dashed marks A, B and C.
  • the dirt retention device 6 has a gap filter insert 13 as the filter medium. The separated dirt particles leave the assembly with the aid of gravity through the dirt outlet 14 arranged in the lower part 2, a mud trap 12 being arranged in its outlet area, which prevents already separated dirt particles from reaching the area of influence of the gap filter insert 13 again.
  • the individual parts of the assembly are connected to one another by means of connecting means 16. In the exemplary embodiment according to FIG.
  • the upper part 1 is screwed to the central part 3 with screws 16 distributed evenly along the circumference, together with the associated nuts 16.
  • the central part is connected to the lower part in the same way by means of connecting means 16.
  • the dirt retention device is rotatable so that the can surface can be backwashed over the entire surface by means of the rigidly positioned filter backwashing device. It has a dirt retention device drive 17.
  • the backwash inlet has several functions. On the one hand, desludging of the clean side can be carried out, on the other hand support for backwashing the filter insert. With appropriate filter inserts, this opening can also be used as a backwash discharge.
  • the basic idea is realized in that 3 different connection options are provided in the central part.
  • different types of filter cartridges can be used. For example, filter stars, sieve shells, sieve pockets, foils, canned tubes, wire split plates, slotted sieve disks, paper filters are used as filter inserts. These can have backwashing and / or a purification device on the clean side.
  • the design for the filter insert is chosen so that a large part of the parts can be used for different designs.
  • the housing is screwed or welded to the other parts.
  • the assembly shown in FIG. 3 consists of an upper part 1, a lower part 2 and two middle parts 3, a cyclone 10 also being located in the lower part 2.
  • the upper part 1 only has a clean liquid outlet 5 which communicates separately with the raw liquid inlet arranged in the upper middle part 3 through the dirt retention device 6.
  • the dirt retention device 6 is essentially accommodated in the area of the upper middle part 3.
  • the backwash outlet 8, which is arranged in the lower middle part 2 and is used for backwashing the dirt retention device 6, communicates with the filter backwashing device 9, which in turn is located on the dirt retention device 6, the filter backwashing device being supported by scrapers 15 when cleaning the gap filter insert.
  • the flow guide device 11, which sets the liquid into a tangential flow within the assembly, is located in the lower part 2 in this embodiment.
  • the dirt retention device 6 has a gap filter insert 13 as the filter medium.
  • the separated dirt particles leave the assembly under the force of gravity through the dirt outlet 14 arranged in the lower part 2, a mud trap 12 being arranged in its outlet area, which prevents dirt particles that have already separated from reaching the area of influence of the gap filter insert 13 again.
  • the individual parts of the assembly are connected to one another by means of connecting means 16.
  • the upper part 1 is screwed to the middle part 3 with screws distributed evenly on the circumference together with the associated nuts 16.
  • the middle part is connected in the same way by means of connecting means 16 to the other middle part as well as this to the lower part.
  • the dirt retention device can be rotated by means of the dirt retention device drive 17, so that the can surface can be backwashed over the entire area by means of the rigidly positioned filter backwashing device.
  • the assembly which is shown in FIG. 4 consists of an upper part 1, a lower part 2 and three middle parts 3, a cyclone 10 being located in the lower part 2.
  • the upper part 1 has a clean liquid outlet 5, which communicates separately with the raw liquid inlet 4 arranged in the middle middle part 3 through the dirt retention device 6.
  • the dirt retention device 6 is housed essentially in the area of the upper two middle parts 3, the the upper middle part only has the function of extending the assembly for reasons of capacity.
  • the backwash outlet 8, which is arranged in the lower middle part 2 and serves for backwashing the dirt retention device 6, communicates with the filter backwash device 9, which is also shown in FIG.
  • the filter backwashing device 9, which in turn is located on the dirt retention device 6, is supported by scrapers 15, which are shown in FIG.
  • the flow guide device 11 which sets the liquid into a tangential flow within the assembly, is located in the lower part 2 in this embodiment.
  • the dirt retention device 6 has a gap filter insert 13 as the filter medium.
  • the separated dirt particles leave the assembly with the aid of gravity through the dirt outlet 14 arranged in the lower part 2, a mud trap 12 being arranged in its outlet area, which prevents that already separated dirt particles get back into the area of influence of the gap filter insert 13, which is shown in part in FIG. 5 .
  • the individual parts of the assembly are connected to one another by means of connecting means 16.
  • the upper part 1 is screwed to the middle part 3 with screws distributed evenly on the circumference together with the associated nuts 16.
  • the middle parts are connected in the same way by means of connecting means 16 to the other middle parts, the same applies to the connection between the lower middle part and the lower part 2, which is conical.
  • the dirt retention device can be rotated by means of the dirt retention device drive 17, so that the can surface can be backwashed over the entire area by means of the rigidly positioned filter backwashing device.
  • FIG. 6 shows a filter system, consisting of an upper part 1, a middle part 3, an intermediate part 18, an inlet part 19 and a lower part 2.
  • the medium supplied via the raw liquid inlet 4 reaches the filter insert 21 according to arrow 20 and leaves via the pure liquid chamber 22 cleaned the system.
  • a backwash arm 24 is provided which is coupled to the individual filter inserts. pelt and due to the system overpressure causes backwashing of the connected filter insert.
  • the motor 25 takes over the drive of the backwash arm 24.
  • FIG. 7 shows a further variant of a filter system, an upper part 1, a middle part 3, an inlet part 19, an intermediate part 18 and a lower part 2 are also provided here.
  • this valve block contains several electromagnetically controlled valve systems 27, 28.
  • backwashing is generated, this backwashing is shown on the left side of the center line or the raw liquid is filtered as shown on the right side of the center line.
  • the raw liquid enters the system via the raw liquid inlet 4, is passed through a guide device 29, this guide device produces a swirl disturbance, so that coarse dirt can be discharged downward through a dirt outlet 14.
  • the raw liquid then flows into the opening 30 and, according to the arrow 31, past the valve 32 into the raw liquid chamber, to the filter candle 33.
  • the cleaned liquid leaves the system via the pure liquid outlet 5.
  • Such a filter system has, for example, six or more filter cartridges, so that six or more valve systems are also provided. Each valve system controls the inflow or outflow to a filter candle or to a gap filter insert.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Cyclones (AREA)

Abstract

The invention relates to a subassembly for purifying liquids, whereby components are combined to form a module and means are provided with which the components are detachably connected to one another. The module comprises an upper part, a lower part, and at least one middle part, whereby the module has at least one raw liquid inlet, a purified liquid outlet, in addition to at least one sludge retaining device and one sludge outlet.

Description

Beschreibung description
Filtermodul für FlüssigkeitenFilter module for liquids
Die Erfindung betrifft ein Filtermodul für Flüssigkeiten.The invention relates to a filter module for liquids.
Derartige Flüssigkeitsfilter sind aus der DE-PS 32 09 216 bekannt, bei dem ein hohlzylindrisches Filterelement vorgesehen ist. Dieses trennt innerhalb eines Filtergehäuses einen Filtratraum von einem Schmutzflüssigkeitsraum ab. Das Flüssigkeitsfilter enthält ferner eine Schmutzabfuhrrinne, die parallel zur Achse des Filterelementes angeordnet ist und einen U-förmigen Querschnitt aufweist. Zum Abreinigen der Oberfläche des Flüssigkeitsfilters wird dieser um seine Achse gedreht und der Schmutzabfuhrkanal geöffnet, so daß aufgrund des im Inneren des hohlzylindrischen Filterelementes herrschenden Drucks Flüssigkeit durch das an der Oberfläche des Filterelementes angeordnete Filtergewebe strömt. Die an dem Filtergewebe anhaftenden Partikel werden durch die Strömung mitgenommen und über einen Schmutzabfuhrkanal abgeleitet.Such liquid filters are known from DE-PS 32 09 216, in which a hollow cylindrical filter element is provided. This separates a filtrate space from a dirty liquid space within a filter housing. The liquid filter also contains a dirt drainage channel, which is arranged parallel to the axis of the filter element and has a U-shaped cross section. To clean the surface of the liquid filter, the latter is rotated about its axis and the dirt discharge channel is opened, so that liquid flows through the filter fabric arranged on the surface of the filter element due to the pressure prevailing inside the hollow cylindrical filter element. The particles adhering to the filter fabric are carried along by the flow and discharged via a dirt drainage channel.
Die Größe der in der zu reinigenden Flüssigkeit enthaltenen Partikel ist nicht exakt zu definieren, so daß unter Umständen auch Partikel angeschwemmt werden, die ein Mehrfaches der Filterspaltweite aufweisen. Die Abreinigung solcher Partikel mit der bekannten Rückspüleinrichtung wird dadurch erschwert, daß diese Rückspüleinrichtung einerseits einen möglichst geschlossenen und nur zu dem Filterbereich geöffneten U-förmigen Querschnitt aufweist, andererseits aber auch größere Partikel am Umfang des Filterelementes in die Schmutzabfuhrrinne hineingelangen sollen. Dadurch ergibt sich an der Vorderkante der Schmutzabfuhrrinne ein nicht unerheblicher Spalt, durch den aus dem Schmutzflüssigkeitsraum Flüssigkeit in die Schmutzabfuhrrinne gelangt. Damit wird die Rückspülwirkung an dem Filterelement wesentlich herabgesetzt.The size of the particles contained in the liquid to be cleaned cannot be defined exactly, so that under certain circumstances particles are also washed up which have a multiple of the filter gap. The cleaning of such particles with the known backwashing device is made more difficult by the fact that this backwashing device on the one hand has a U-shaped cross section that is as closed as possible and only open to the filter area, but on the other hand larger particles on the circumference of the filter element should also get into the dirt drainage channel. This results in a not inconsiderable gap at the front edge of the dirt drainage channel, through which liquid enters the dirt drainage channel from the dirty liquid space. This significantly reduces the backwashing action on the filter element.
Es ist weiterhin aus der EP 00 49 746 B1 ein Spaltfilter für Schmieröl bekannt, welches mit einem Reinigungselement versehen ist. Das Reinigungselement weist einen Spülkanal auf und besitzt zum einen zu der Filteroberfläche hin gewandte Öffnungen zum Rückspülen des Spaltfilters sowie einen Eintrittsspalt zum Vorreinigen der Filteroberfläche. Mit diesem Reinigungselement soll damit zum einen Grobschmutz mittels des Eintrittsspalts entfernt werden, sowie der in den Filterspalten angelagerte Schmutz über die Rückspülöffnungen. Ein Nachteil dieses Systems besteht darin, daß durch die Anordnung des Eintrittsspalts für Grobschmutz die Rückspülwirkung sehr stark vermindert wird. Das Reinigungselement, das eine kompakte Kombination aufweist, hat den Nachteil, daß Schmutz unterschiedlicher Zusammensetzung nicht wirksam entfernt werden kann. So ist einerseits der Eintrittsspalt möglichst klein zu halten, um die Rückspülwirkung nicht unnötig zu beeinflussen. Andererseits hat ein kleinerer Eintrittsspalt den Nachteil, daß Grobschmutz sich vor dem Reinigungsspalt ablagert und nicht mit ausgetragen werden kann.From EP 00 49 746 B1, a gap filter for lubricating oil is also known, which is provided with a cleaning element. The cleaning element has a rinsing channel and on the one hand has openings facing the filter surface for backwashing the gap filter and an inlet gap for pre-cleaning the filter surface. With this cleaning element, coarse dirt is to be removed on the one hand by means of the inlet slit, and the dirt accumulated in the filter slits via the backwashing openings. A disadvantage of this system is that the backwashing effect is greatly reduced by the arrangement of the inlet gap for coarse dirt. The cleaning element, which has a compact combination, has the disadvantage that dirt of different compositions cannot be removed effectively. On the one hand, the inlet gap should be kept as small as possible so as not to unnecessarily influence the backwashing effect. On the other hand, a smaller inlet gap has the disadvantage that coarse dirt is deposited in front of the cleaning gap and cannot be removed with it.
Die geringe Rückspülwirkung des Reinigungselementes wird dadurch noch weiter herabgesetzt, daß ein sehr breiter Umfangsbereich des Filters rückgespült wird und damit sich die Geschwindigkeit der Rückspülströmung stark verringert.The low backwashing effect of the cleaning element is further reduced by backwashing a very wide circumferential area of the filter and thus greatly reducing the speed of the backwashing flow.
Des weiteren ist aus der DE 28 52 611 A1 ein rückspülbares Flüssigkeitsfilter bekannt, das einen von außen nach innen durchströmten konischen Filterkäfig aufweist, der in einem mit einem Zu- und einem Ablauf versehenen Gehäuse fest verankert ist. Hierbei ist nachteilig, daß insbesonder durch die konische Anordnung des Filterkäfigs eine Anpassung des Filters an veränderte Randbedingungen, z. B. durch ein verlängertes Mittelstück, bzw. durch ein Mittelstück mit verändertem Radius nicht realisierbar ist.Furthermore, a backflushable liquid filter is known from DE 28 52 611 A1, which has a conical filter cage which is flowed through from the outside inwards and is firmly anchored in a housing provided with an inlet and an outlet. The disadvantage here is that the conical arrangement of the filter cage in particular means that the filter can be adapted to changing boundary conditions, e.g. B. by an extended centerpiece, or by a centerpiece with a changed radius is not feasible.
Der Erfindung liegt die Aufgabe zugrunde, ein Filter zu schaffen, das die genannten Nachteile vermeidet und mit dem Schmutzflüssigkeit, die mit Partikeln unterschiedlichster Größe belastet ist, stets optimal gefiltert wird und eine wirksame Abreinigung des Filterelements erfolgt, wobei die Baugruppe eine hohe Anpaasungsfähigkeit an sich verändeme Randbedingungen aufweisen soll. Diese Aufgabe wird dadurch gelöst, daß Bauteile zu einem Modul zusammengefaßt sind und daß Mittel vorgesehen sind, mit denen die Bauteile miteinander verbunden sind, wobei das Modul ein Oberteil und ein Unterteil sowie wenigstens ein Mittelteil aufweist, wobei das Modul wenigstens einen Rohflüssigkeit- seinlaß und einen Reinflüssigkeitsauslaß sowie wenigstens eine Schmutzrückhaltevorrichtung aufweist.The invention has for its object to provide a filter that avoids the disadvantages mentioned and with the dirty liquid, which is loaded with particles of different sizes, is always optimally filtered and an effective cleaning of the filter element takes place, the assembly being highly adaptable per se should have changing boundary conditions. This object is achieved in that components are combined to form a module and in that means are provided with which the components are connected to one another, the module having an upper part and a lower part and at least one central part, the module having at least one raw liquid inlet and has a clean liquid outlet and at least one dirt retention device.
Eine vorteilhafte Weiterbildung der Erfindung sieht vor, daß die Bauteile lösbar miteinander verbunden sind. Auf diese Weise lassen sich insbeondere entlang der Längsachse beliebig viele Mittelteile, unter anderem mit unterschiedlichen Längen und/oder Durchmessern anordnen, so daß die Baugruppe sehr flexibel an veränderte Betriebsparameter anpaß- bzw. beliebig verlängerbar ist.An advantageous development of the invention provides that the components are releasably connected to one another. In this way, any number of middle parts, in particular with different lengths and / or diameters, can be arranged in particular along the longitudinal axis, so that the assembly can be adapted very flexibly to changed operating parameters or can be extended as desired.
Durch diesen modulartigen Aufbau kann die Positionierung der Anschlußflansche beliebig gewählt werden. Hier wird lediglich das Anschlußmodul entsprechend variiert. Es besteht auch die Möglichkeit, geschweißte Ausführungen zu verwenden. Gegenüberden gußtechnisch ausgeführten Ausführungen haben diese den Vorteil, daß auch kleine Stückzahlen einfach realisiert werden können.This modular design allows the connection flanges to be positioned as required. Only the connection module is varied accordingly. It is also possible to use welded versions. Compared to the designs carried out by casting, these have the advantage that even small quantities can be easily realized.
Ebenso flexibel können die Anschlußflansche positioniert werden, da sie zwischen null und dreihundertsechzig Grad angeordnet werden können und somit an bestehende Anlagen leicht anpassbar sind. Es ist ebenfalls denkbar die verschiedenen Bauteile miteinander zu verschweißen.The connection flanges can be positioned just as flexibly since they can be arranged between zero and three hundred and sixty degrees and are therefore easily adaptable to existing systems. It is also conceivable to weld the various components together.
In einer anderen vorteilhaften Weiterbildung ist vorgesehen, daß die Baugruppe wenigstens einen Rückspülein- und/oder -auslaß sowie die damit korrespondierende Filterrückspülvorrichtung aufweist. Weiter kann man erfindungsgemäß vorsehen, daß die Baugruppe wenigstens ein Zyklon aufweist, mit dessen Hilfe der gröbere Teil der Schmutzfracht vorabgeschieden werden kann.Another advantageous development provides that the assembly has at least one backwashing inlet and / or outlet and the filter backwashing device corresponding therewith. Furthermore, it can be provided according to the invention that the assembly has at least one cyclone, with the aid of which the coarser part of the dirt load can be separated out.
Eine vorteilhafte Weiterbildung der Erfindung sieht vor, daß die Baugruppe wenigstens einen Strömungsleitapparat aufweist, mit dem in Abhängigkeit von z. B. geometrischen Größen, wie dem Radius sowie der Schmutzart, bzw. deren Form, Gewicht oder Größe, unterschiedliche Strömungsprofile realisierbar sind.An advantageous development of the invention provides that the assembly has at least one flow guide with which, depending on z. B. geometric sizes, such as the radius and the type of dirt, or their shape, weight or size, different flow profiles can be realized.
Es besteht beispielsweise die Möglichkeit, den Strömungsleitapparat mit einem Profil auszubilden bei dem die Sttömungsgeschwindigkeit im unteren Bereich erhalten bleibt. Vorteilhaft ist die Ausbildung des Strömungsleitapparats derart, daß turbulente Bereiche vermieden werden, die eventuell eine Vorabscheidung negativ beeinflussen. Es hat sich als zweckmäßig erwiesen, den Strömungsleitapparat mit einer großen Länge zu gestalten. Damit wird eine optimale Zyklonwirkung erzielt.lnsbesondere im unteren Bereich kann sich aufgrund der Zyklonwirkung ein hoher Abscheidegrad realisieren lassen.There is, for example, the possibility of designing the flow guiding device with a profile in which the flow velocity is maintained in the lower region. It is advantageous to design the flow control device in such a way that turbulent areas are avoided, which may adversely affect pre-separation. It has proven to be expedient to design the flow guide with a long length. This achieves an optimal cyclone effect. Especially in the lower area, a high degree of separation can be achieved due to the cyclone effect.
In einer anderen vorteilhaften Weiterbildung ist vorgesehen, daß die Baugruppe wenigstens einen Strömungsleitapparat aufweist, der höhenverstellbar ist und somit die Strömungsführung aktiv beeinflussen kann.In another advantageous development, it is provided that the assembly has at least one flow guide that is adjustable in height and thus can actively influence the flow guidance.
Weiter kann man erfindungsgemäß vorsehen, daß die Baugruppe wenigstens eine Schlammfalle aufweist mit der das Abscheideverhalten, insbesondere des Grobschmutzes, beeinflußt bzw. verbessert werden kann..It can further be provided according to the invention that the assembly has at least one sludge trap with which the separation behavior, in particular of the coarse dirt, can be influenced or improved.
Eine vorteilhafte Weiterbildung der Erfindung sieht vor, daß die Schmutzrückhaltevorrichtung einen Spaltfiltereinsatz aufweist. Spaltfilter verfügen insbesondere beim Schlammabscheiden über hervorragende Trenn- und Rückspüleigenschaften, die in dieser modularen Anordnung zur Geltung kommen. In alternativen Weiterbildungen ist vorgesehen, sogenannte Siebstern-, -mantel oder -taschen Filtereinsätze zu verwenden. Ebenfalls ist in weiteren alternati- ven Ausgestaltungen denkbar, Siebscheiben-, Papier-, Folien-, Plattenspalt-, Drahtspalt- oder Spaltrohrfiltereinsätze zu verwenden.An advantageous development of the invention provides that the dirt retention device has a gap filter insert. Gap filters, in particular when separating sludge, have excellent separating and backwashing properties, which come into their own in this modular arrangement. In alternative developments, it is provided to use so-called filter stars, sheaths, or pockets. In other alternative ven configurations conceivable to use screen, paper, foil, plate gap, wire gap or canned filter inserts.
Anstelle eines Spaltfilters für die Schmutzrückhaltevorrichtung können auch andere Filtereinsätze angewendet werden. Beispielsweise besteht die Möglichkeit, Siebgewebe, Folien oder Papier als Schmutzrückhaltevorrichtung vorzusehen. Je nach Bedarf und Betriebsbedingungen beziehungsweise Filtrationsqualität ist eine Anpassung dieser Vorrichtung denkbar.Instead of a gap filter for the dirt retention device, other filter inserts can also be used. For example, it is possible to provide screen cloth, foils or paper as a dirt retention device. Depending on requirements and operating conditions or filtration quality, an adaptation of this device is conceivable.
In einer anderen vorteilhaften Weiterbildung ist vorgesehen, daß die Baugruppe wenigstens einen Schmutzauslaß aufweist.Another advantageous development provides that the assembly has at least one dirt outlet.
Weiter kann man erfindungsgemäß vorsehen, daß die Filterrückspülvorrichtung der Baugruppe über wenigstens einen Schaber verfügt, der den Vorgang der Rückspülung mechanisch unterstützt, die Rückreinigungsphase verringert und das Ergebnis verbessert.It can further be provided according to the invention that the filter backwashing device of the assembly has at least one scraper which mechanically supports the backwashing process, reduces the backwashing phase and improves the result.
Durch die beschriebenen Weiterbildungen weist die Baugruppe eine hohe Anpassungsfähigkeit an sich verändernde Randbedingungen auf.As a result of the further developments described, the assembly has a high degree of adaptability to changing boundary conditions.
Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird.These and further features of preferred developments of the invention are evident from the claims and also from the description and the drawings, the individual features being implemented individually or in groups in the form of subcombinations in the embodiment of the invention and in other fields, and can represent advantageous and protectable versions for which protection is claimed here.
Es zeigt:It shows:
Figur 1 einen Schnitt durch eine dreiteilige Baugruppe mit Leitapparat imFigure 1 shows a section through a three-part assembly with diffuser in
Oberteil Figur 2 einen Schnitt durch eine vierteilige Baugruppe mit Zyklon im UnterteilTop Figure 2 shows a section through a four-part assembly with a cyclone in the lower part
Figur 3 einen Schnitt durch eine vierteilige Baugruppe mit Leitapparat undFigure 3 shows a section through a four-part assembly with diffuser and
Zyklon im Unterteil sowie einer Rückspülanordnung in einem der beiden MittelteileCyclone in the lower part and a backwash arrangement in one of the two middle parts
Figur 4 einen Schnitt durch eine fünfteilige BaugruppeFigure 4 shows a section through a five-part assembly
Figur 5 eine Ausschnittdarstellung eines Spaltfiltereinsatzes samtFigure 5 shows a detail of a gap filter insert including
SpaltfiltereinsatzGap filter insert
Figur 6 ein FiltersystemFigure 6 shows a filter system
Figur 7 eine Variante eines FiltersystemsFigure 7 shows a variant of a filter system
In Figur 1 wird eine Baugruppe dargestellt, die im wesentlichen aus den Bauteilen Oberteil 1 , Unterteil 2 und Mittelteil 3 besteht. Das Oberteil weist einen Rohflüssigkeitseinlaß 4 sowie den korrespondierenden Reinflüssigkeitsauslaß 5 auf, die jedoch durch die Schmutzrückhaltevorrichtung 6 getrennt, die die in der zu reinigenden Flüssigkeit enthaltenen Schmutzpartikel von der Reinflüssig- keitsseite fern hält. Die Schmutzrückhaltevorrichtung 6 ist im wesentlichen im Bereich des Mittelteils 3 untergebracht. Der Rückspülauslaß 8, der im Unterteil 2 angeordnet ist und zur Rückspülung der Schmutzrückhaltevorrichtung 6 dient, kommuniziert mit der Filterrückspülvorrichtung 9, die wiederum an der Schmutzrückhaltevorrichtung 6 befindlich ist, wobei die Filterrückspülvorrichtung von nicht explizit dargestellten Schabern 15 beim Abreinigen des Spaltfiltereinsatzes unterstützt wird. Der Strömungsleitapparat 11 , der die Flüssigkeit in eine Tangentialströmung innerhalb der Baugruppe versetzt, befindet sich in dieser Ausführungsform im Oberteil 1. Der in dieser Ausführungsform dargestellte Strömungsleitapparat 11 weist eine gewindegangartige Kanalform auf, die eine definiert eingeleitete Strömung garantiert. Die Schmutzrückhaltevorrichtung 6 weist als Filtermedium einen Spaltfiltereinsatz 13 auf. Die abgeschiedenen Schmutzpartikel verlassen schwerkraftunterstützt die Baugruppe durch den im Unterteil 2 angeordneten Schmutzauslaß 14. Die einzelnen Teile der Baugruppe sind mittels Verbindungsmitteln 16 miteinander verbunden. Im Ausführungsbeispiei gemäß Figur 1 ist das Oberteil 1 mit dem Mittelteil 3 mit gleichmäßig am Umfang verteilten Schrauben samt zugehörigen Muttern 16 verschraubt. Das Mittelteil weist in Richtung des Unterteils ein in der Oberfläche des Mittelteils befindliches Gewinde auf, welches mit dem zugehörigen Gewinde im Mittelreil 3 korrespondiert. Damit die Schmutzrückhaltevorrichtung gedreht werden kann, damit die Spaltrohroberfläche über die gesamte Fläche mittels der starr positionierten Filterrückspülvorrichtung rückgespült werden kann, weist diese einen Schmutzrückhaltevorrichtungsantrieb 17 auf.In Figure 1, an assembly is shown, which consists essentially of the components upper part 1, lower part 2 and middle part 3. The upper part has a raw liquid inlet 4 and the corresponding clean liquid outlet 5, which, however, is separated by the dirt retention device 6, which keeps the dirt particles contained in the liquid to be cleaned away from the clean liquid side. The dirt retention device 6 is essentially accommodated in the area of the middle part 3. The backwash outlet 8, which is arranged in the lower part 2 and is used for backwashing the dirt retention device 6, communicates with the filter backwashing device 9, which in turn is located on the dirt retention device 6, the filter backwashing device being supported by scrapers 15 (not explicitly shown) when cleaning the gap filter insert. The flow guide 11, which sets the liquid into a tangential flow within the assembly, is in this embodiment in the upper part 1. The flow guide 11 shown in this embodiment has a thread-like channel shape, which guarantees a defined flow. The dirt retention device 6 has a gap filter insert 13 as the filter medium. The separated dirt particles leave the assembly under the force of gravity through the dirt outlet 14 arranged in the lower part 2. The individual parts of the assembly are connected to one another by means of connecting means 16. In the exemplary embodiment according to FIG. 1, the upper part 1 is with the central part 3 Screws evenly distributed around the circumference together with the associated nuts 16. In the direction of the lower part, the middle part has a thread located in the surface of the middle part, which corresponds to the associated thread in the middle part 3. So that the dirt retention device can be rotated, so that the can surface can be backwashed over the entire surface by means of the rigidly positioned filter backwashing device, the latter has a dirt retention device drive 17.
Figur 2 stellt eine Baugruppe dar, die ebenfalls wie in Figur 1 gezeigt, aus den Bauteilen Oberteil 1 , Unterteil 2 und zwei Mittelteilen 3 besteht, wobei sich zusätzlich im Unterteil 2 ein Zyklon 10 befindet. In dieser kurzen Ausführungsform ist der Energiebedarf sehr gering, was die Baugruppe insbesondere für energiesparende Einsatzzwecke eignet. Das Oberteil 1 weist einen Rohflüssigkeit- seinlaß 4 sowie den korrespondierenden Reinflüssigkeitsauslaß 5 auf, die jedoch durch die Schmutzrückhaltevorrichtung 6 getrennt, die die in der zu reinigenden Flüssigkeit enthaltenen Schmutzpartikel von der Reinflüssigkeitsseite fern hält. Die Schmutzrückhaltevorrichtung 6 ist im wesentlichen im Bereich des oberen Mittelteils 3 untergebracht. Der Rückspülauslaß 8, der im unteren Mittelteil 2 angeordnet ist und zur Rückspülung der Schmutzrückhaltevorrichtung 6 dient, kommuniziert mit der Filterrückspülvorrichtung 9, die wiederum an der Schmutzrückhaltevorrichtung 6 befindlich ist, wobei die Filterrückspülvorrichtung von Schabern 15 beim Abreinigen des Spaltfiltereinsatzes unterstützt wird. Im Gegensatz zum Ausführungsbeispiei in Figur 1 wird der Rückspülvorgang in Figur 2 mittels eines Rückspüleinlasses 7 zusätzlich unterstützt, durch den ein Rückspülmedium eingetragen werden kann. Der Rückspüleinlaß kann mehrere Funktionen übernehmen. Dies ist einerseits die Entschlammung der Reinseite, andereseits die Unterstützung der Rückspülung sowie beim Automatikfiltereinsatz die Verwendung als Rückspülaustrag bzw. als Entschlammung der Reinseite oder als Rückspülunterstützung. Der Strömungsleitapparat 11 , der die Flüssigkeit in eine Tangentialströmung innerhalb der Baugruppe versetzt, befindet sich in dieser Ausführungsform im Mittelteil 3. In dieser Ausführungsform besteht die Möglichkeit den Strömungsleitapparat 11 in verschiedenen Positio- nen zu befestigen, wie die durch die gestrichelten Markierungen A, B und C deutlich wird. Die Schmutzrückhaltevorrichtung 6 weist als Filtermedium einen Spaltfiltereinsatz 13 auf. Die abgeschiedenen Schmutzpartikel verlassen schwerkraftunterstützt die Baugruppe durch den im Unterteil 2 angeordneten Schmutzauslaß 14, wobei in dessen Auslaßbereich eine Schlammfalle 12 angeordnet ist, die verhindert, daß bereits abgeschiedene Schmutzpartikel wieder in den Einflußbereich des Spaltfiltereinsatzes 13 gelangen. Die einzelnen Teile der Baugruppe sind mittels Verbindungsmitteln 16 miteinander verbunden. Im Ausführungsbeispiel gemäß Figur 2 ist das Oberteil 1 mit dem Mittelteil 3 mit gleichmäßig am Umfang verteilten Schrauben samt zugehörigen Muttern 16 verschraubt. Das Mittelteil ist in gleicher Weise mittels Verbindungsmitteln 16 mit dem Unterteil verbunden. Die Schmutzrückhaltevorrichtung ist drehbar, damit die Spaltrohroberfläche über die gesamte Fläche mittels der starr positionierten Filterrückspülvorrichtung rückgespült werden kann, sie weist einen Schmutzrückhaltevorrichtungsantrieb 17 auf.FIG. 2 shows an assembly which, as also shown in FIG. 1, consists of the components upper part 1, lower part 2 and two middle parts 3, a cyclone 10 also being located in the lower part 2. In this short embodiment, the energy requirement is very low, which is particularly suitable for energy-saving purposes. The upper part 1 has a raw liquid inlet 4 and the corresponding clean liquid outlet 5, which, however, is separated by the dirt retention device 6, which keeps the dirt particles contained in the liquid to be cleaned away from the clean liquid side. The dirt retention device 6 is essentially accommodated in the area of the upper middle part 3. The backwash outlet 8, which is arranged in the lower middle part 2 and is used for backwashing the dirt retention device 6, communicates with the filter backwashing device 9, which in turn is located on the dirt retention device 6, the filter backwashing device being supported by scrapers 15 when cleaning the gap filter insert. In contrast to the exemplary embodiment in FIG. 1, the backwashing process in FIG. 2 is additionally supported by means of a backwashing inlet 7, through which a backwashing medium can be introduced. The backwash inlet can perform several functions. On the one hand, this is the desludging of the clean side, on the other hand the support of backwashing and, when using the automatic filter, the use as backwash discharge or as desludging of the clean side or as backwash support. The flow guide 11, which sets the liquid into a tangential flow within the assembly, is located in the middle part 3 in this embodiment. In this embodiment, there is the possibility of the flow guide 11 in different positions. Fasten NEN, as is shown by the dashed marks A, B and C. The dirt retention device 6 has a gap filter insert 13 as the filter medium. The separated dirt particles leave the assembly with the aid of gravity through the dirt outlet 14 arranged in the lower part 2, a mud trap 12 being arranged in its outlet area, which prevents already separated dirt particles from reaching the area of influence of the gap filter insert 13 again. The individual parts of the assembly are connected to one another by means of connecting means 16. In the exemplary embodiment according to FIG. 2, the upper part 1 is screwed to the central part 3 with screws 16 distributed evenly along the circumference, together with the associated nuts 16. The central part is connected to the lower part in the same way by means of connecting means 16. The dirt retention device is rotatable so that the can surface can be backwashed over the entire surface by means of the rigidly positioned filter backwashing device. It has a dirt retention device drive 17.
Der Rückspüleinlaß hat mehrere Funktionen. Auf der einen Seite kann eine Entschlammung der Reinseite vorgenommen werden, auf der anderen Seite eineUnterstüztung des Rückspülen des Filtereinsatzes. Bei entsprechenden Filtereinsätzen kann diese Öffnung auch als Rückspülaustrag genutzt werden. Die Grundidee wird dadurch verwirklicht, daß in dem Mittelteil 3 verschiedene Anschlußmöglichkeiten vorgesehen sind. Grundsätzlich können verschiedene Filtereinsatztypen angewendet werden. Als Filtereinsatz kommen beispielsweise, Siebstern, Siebmantel, Siebtaschen, Folien, Spaltrohr, Drahtspaltplatten, Spaltsiebscheiben, Papierfilter zum Einsatz. Diese können eine Rückspülung und/oder eine reinseitige Entschlammungseinrichtung aufweisen. Die konstruktive Ausgestaltung für den Filtereinsatz wird dabei so gewählt, daß ein Großteil der Teile für verschiedene Ausführungen benutzt werden können. Das Gehäuse ist mit den weiteren Teilen verschraubt oder geschweisßt.The backwash inlet has several functions. On the one hand, desludging of the clean side can be carried out, on the other hand support for backwashing the filter insert. With appropriate filter inserts, this opening can also be used as a backwash discharge. The basic idea is realized in that 3 different connection options are provided in the central part. In principle, different types of filter cartridges can be used. For example, filter stars, sieve shells, sieve pockets, foils, canned tubes, wire split plates, slotted sieve disks, paper filters are used as filter inserts. These can have backwashing and / or a purification device on the clean side. The design for the filter insert is chosen so that a large part of the parts can be used for different designs. The housing is screwed or welded to the other parts.
Die in Figur 3 dargestellte Baugruppe besteht aus Oberteil 1 , Unterteil 2 und zwei Mittelteilen 3, wobei sich zusätzlich im Unterteil 2 ein Zyklon 10 befindet. Das Oberteil 1 weist lediglich einen Reinflüssigkeitsausiaß 5 auf, der durch die Schmutzrückhaltevorrichtung 6 getrennt mit dem im oberen Mittelteil 3 angeordneten Rohflüssigkeitseinlaß kommuniziert. Die Schmutzrückhaltevorrichtung 6 ist im wesentlichen im Bereich des oberen Mittelteils 3 untergebracht. Der Rückspülauslaß 8, der im unteren Mittelteil 2 angeordnet ist und zur Rückspülung der Schmutzrückhaltevorrichtung 6 dient, kommuniziert mit der Filterrückspülvorrichtung 9, die wiederum an der Schmutzrückhaltevorrichtung 6 befindlich ist, wobei die Filterrückspülvorrichtung von Schabern 15 beim Abreinigen des Spaltfiltereinsatzes unterstützt wird. Der Strömungsleitapparat 11 , der die Flüssigkeit in eine Tangentialströmung innerhalb der Baugruppe versetzt, befindet sich in dieser Ausführungsform im Unterteil 2. Die Schmutzrückhaltevorrichtung 6 weist als Filtermedium einen Spaltfiltereinsatz 13 auf. Die abgeschiedenen Schmutzpartikel verlassen schwerkraftunterstützt die Baugruppe durch den im Unterteil 2 angeordneten Schmutzauslaß 14, wobei in dessen Auslaßbereich eine Schlammfalle 12 angeordnet ist, die verhindert, daß bereits abgeschiedene Schmutzpartikei wieder in den Einflußbereich des Spaltfiltereinsatzes 13 gelangen. Die einzelnen Teile der Baugruppe sind mittels Verbindungsmitteln 16 miteinander verbunden. Das Oberteil 1 ist mit dem Mittelteil 3 mit gleichmäßig am Umfang verteilten Schrauben samt zugehörigen Muttern 16 verschraubt. Das Mittelteil ist in gleicher Weise mittels Verbindungsmitteln 16 mit dem anderen Mittelteil als auch dieses mit dem Unterteil verbunden. Die Schmutzrückhaltevorrichtung kann mittels Schmutzrückhaltevorrichtungsantrieb 17 gedreht werden, damit die Spaltrohroberfläche über die gesamte Fläche mittels der starr positionierten Filterrückspülvorrichtung rückgespült werden kann.The assembly shown in FIG. 3 consists of an upper part 1, a lower part 2 and two middle parts 3, a cyclone 10 also being located in the lower part 2. The upper part 1 only has a clean liquid outlet 5 which communicates separately with the raw liquid inlet arranged in the upper middle part 3 through the dirt retention device 6. The dirt retention device 6 is essentially accommodated in the area of the upper middle part 3. The backwash outlet 8, which is arranged in the lower middle part 2 and is used for backwashing the dirt retention device 6, communicates with the filter backwashing device 9, which in turn is located on the dirt retention device 6, the filter backwashing device being supported by scrapers 15 when cleaning the gap filter insert. The flow guide device 11, which sets the liquid into a tangential flow within the assembly, is located in the lower part 2 in this embodiment. The dirt retention device 6 has a gap filter insert 13 as the filter medium. The separated dirt particles leave the assembly under the force of gravity through the dirt outlet 14 arranged in the lower part 2, a mud trap 12 being arranged in its outlet area, which prevents dirt particles that have already separated from reaching the area of influence of the gap filter insert 13 again. The individual parts of the assembly are connected to one another by means of connecting means 16. The upper part 1 is screwed to the middle part 3 with screws distributed evenly on the circumference together with the associated nuts 16. The middle part is connected in the same way by means of connecting means 16 to the other middle part as well as this to the lower part. The dirt retention device can be rotated by means of the dirt retention device drive 17, so that the can surface can be backwashed over the entire area by means of the rigidly positioned filter backwashing device.
Die Baugruppe, die in Figur 4 dargestellt wird, besteht aus Oberteil 1 , Unterteil 2 und drei Mittelteilen 3, wobei sich im Unterteil 2 ein Zyklon 10 befindet. Das Oberteil 1 weist einen Reinflüssigkeitsausiaß 5 auf, der durch die Schmutzrückhaltevorrichtung 6 getrennt mit dem im mittleren Mittelteil 3 angeordneten Rohflüssigkeitseinlaß 4 kommuniziert. Die Schmutzrückhaltevorrichtung 6 ist im wesentlichen im Bereich der oberen zwei Mittelteile 3 untergebracht, wobei das obere Mittelteil lediglich die Funktion hat, die Baugruppe aus Kapazitätsgründen zu verlängern. Der Rückspülauslaß 8, der im unteren Mittelteil 2 angeordnet ist und zur Rückspülung der Schmutzrückhaltevorrichtung 6 dient, kommuniziert mit der Filterrückspülvorrichtung 9, die ebenfalls in Figur 5 dargestellt wird. Die Filterrückspülvorrichtung 9, die wiederum an der Schmutzrückhaltevorrichtung 6 befindlich ist, wird von Schabern 15, die in Figur 5 dargestellt sind, beim Abreinigen des Spaltfiltereinsatzes unterstützt. Der Strömungsleitapparat 11 , der die Flüssigkeit in eine Tangentialströmung innerhalb der Baugruppe versetzt, befindet sich in dieser Ausführungsform im Unterteil 2. Die Schmutzrückhaltevorrichtung 6 weist als Filtermedium einen Spaltfiltereinsatz 13 auf. Die abgeschiedenen Schmutzpartikel verlassen schwerkraftunterstützt die Baugruppe durch den im Unterteil 2 angeordneten Schmutzauslaß 14, wobei in dessen Auslaßbereich eine Schlammfalle 12 angeordnet ist, die verhindert, daß bereits abgeschiedene Schmutzpartikel wieder in den Einflußbereich des Spaltfiltereinsatzes 13, der ausschnittsweise in Figur 5 dargestellt wird, gelangen. Die einzelnen Teile der Baugruppe sind mittels Verbindungsmitteln 16 miteinander verbunden. Das Oberteil 1 ist mit dem Mittelteil 3 mit gleichmäßig am Umfang verteilten Schrauben samt zugehörigen Muttern 16 verschraubt. Die Mittelteile sind in gleicher Weise mittels Verbindungsmitteln 16 mit den anderen Mittelteilen verbunden, das gleiche gilt für die Verbindung zwischen unterem Mittelteil und dem Unterteil 2, welches kegelig ausgeführt ist. Die Schmutzrückhaltevorrichtung kann mittels Schmutzrückhaltevorrichtungs- antrieb 17 gedreht werden, damit die Spaltrohroberfläche über die gesamte Fläche mittels der starr positionierten Filterrückspülvorrichtung rückgespült werden kann.The assembly which is shown in FIG. 4 consists of an upper part 1, a lower part 2 and three middle parts 3, a cyclone 10 being located in the lower part 2. The upper part 1 has a clean liquid outlet 5, which communicates separately with the raw liquid inlet 4 arranged in the middle middle part 3 through the dirt retention device 6. The dirt retention device 6 is housed essentially in the area of the upper two middle parts 3, the the upper middle part only has the function of extending the assembly for reasons of capacity. The backwash outlet 8, which is arranged in the lower middle part 2 and serves for backwashing the dirt retention device 6, communicates with the filter backwash device 9, which is also shown in FIG. The filter backwashing device 9, which in turn is located on the dirt retention device 6, is supported by scrapers 15, which are shown in FIG. 5, when cleaning the gap filter insert. The flow guide device 11, which sets the liquid into a tangential flow within the assembly, is located in the lower part 2 in this embodiment. The dirt retention device 6 has a gap filter insert 13 as the filter medium. The separated dirt particles leave the assembly with the aid of gravity through the dirt outlet 14 arranged in the lower part 2, a mud trap 12 being arranged in its outlet area, which prevents that already separated dirt particles get back into the area of influence of the gap filter insert 13, which is shown in part in FIG. 5 . The individual parts of the assembly are connected to one another by means of connecting means 16. The upper part 1 is screwed to the middle part 3 with screws distributed evenly on the circumference together with the associated nuts 16. The middle parts are connected in the same way by means of connecting means 16 to the other middle parts, the same applies to the connection between the lower middle part and the lower part 2, which is conical. The dirt retention device can be rotated by means of the dirt retention device drive 17, so that the can surface can be backwashed over the entire area by means of the rigidly positioned filter backwashing device.
Figur 6 zeigt ein Filtersystem, bestehend aus einem Oberteil 1 , aus einem Mittelteil 3, einem Zwischenteil 18, einem Zulaufteil 19 sowie einem Unterteil 2. Das über den Rohflüssigkeitseinlaß 4 zugeführte Medium gelangt gemäß dem Pfeil 20 in den Filtereinsatz 21 und verläßt über die Reinflüssigkeitskammer 22 gereinigt das System. Zur Rückspülung der einzelnen Filtereinsätze 21 , 23 ist ein Rückspülarm 24 vorgesehen, der an die einzelnen Filtereinsätze angekop- pelt werden kann und aufgrund des Systemüberdrucks eine Rückspülung des jeweils angeschlossenen Filtereinsatzes bewirkt. Auch hier besteht die Möglichkeit, durch Variation des Zulaufteils 19, beziehungsweise des Mittelteils 3 verschiedene Rückspülsysteme zur Anwendung zu bringen. Der Motor 25 übernimmt dabei den Antrieb des Rückspülarms 24.FIG. 6 shows a filter system, consisting of an upper part 1, a middle part 3, an intermediate part 18, an inlet part 19 and a lower part 2. The medium supplied via the raw liquid inlet 4 reaches the filter insert 21 according to arrow 20 and leaves via the pure liquid chamber 22 cleaned the system. For backwashing the individual filter inserts 21, 23, a backwash arm 24 is provided which is coupled to the individual filter inserts. pelt and due to the system overpressure causes backwashing of the connected filter insert. Here, too, there is the possibility of using 3 different backwash systems by varying the inlet part 19 or the middle part. The motor 25 takes over the drive of the backwash arm 24.
Figur 7 zeigt eine weitere Variante eines Filtersystems, auch hier sind ein Oberteil 1 , ein Mittelteil 3, ein Zulaufteil 19, ein Zwischenteil 18 und ein Unterteil 2 vorgesehen. Oberhalb des Zwischenteils 18 befindet sich ein Ventilblock 26, dieser Ventilblock benihaltet mehrere elektromagnetisch angesteuerte Ventilsysteme 27, 28. Je nach Schaltung wird eine Rückspülung erzeugt, diese Rückspülung ist linksseitig der Mittellinie dargestellt oder es wird wie rechtsseitig der Mittellinie dargestellt, die Rohflüssigkeit gefiltert. Die Rohflüssigkeit gelangt über den Rohflüssigkeitseinlaß 4 in das System, wird über einen Leitapparat 29 geleitet, dieser Leitapparat erzeugt eine Drallstörmung, so daß über einen Schmutzauslaß 14 Grobschmutz nach unten ausgetragen werden kann. Die Rohflüssigkeit strömt anschließend in die Öffnung 30 und gemäß dem Pfeil 31 an dem Ventil 32 vorbei in die Rohflüssigkeitskammer, zu der Filterkerze 33. Die gereinigte Flüssigkeit verläßt über den Reinflüssigkeitsausiaß 5 das System. Ein solches Filtersystem weist beispielsweise sechs oder mehr Filterkerzen auf, damit sind auch sechs oder mehr Ventilsysteme vorgesehen. Jedes Ventilsystem steuert den Zu-oder Abfluß zu einer Filterkerze, beziehungsweise zu einem Spaltfiltereinsatz. FIG. 7 shows a further variant of a filter system, an upper part 1, a middle part 3, an inlet part 19, an intermediate part 18 and a lower part 2 are also provided here. Above the intermediate part 18 there is a valve block 26, this valve block contains several electromagnetically controlled valve systems 27, 28. Depending on the circuit, backwashing is generated, this backwashing is shown on the left side of the center line or the raw liquid is filtered as shown on the right side of the center line. The raw liquid enters the system via the raw liquid inlet 4, is passed through a guide device 29, this guide device produces a swirl disturbance, so that coarse dirt can be discharged downward through a dirt outlet 14. The raw liquid then flows into the opening 30 and, according to the arrow 31, past the valve 32 into the raw liquid chamber, to the filter candle 33. The cleaned liquid leaves the system via the pure liquid outlet 5. Such a filter system has, for example, six or more filter cartridges, so that six or more valve systems are also provided. Each valve system controls the inflow or outflow to a filter candle or to a gap filter insert.

Claims

Ansprüche Expectations
1. Baugruppe zur Reinigung von Flüssigkeiten, dadurch gekennzeichnet, daß Bauteile zu einem Modul zusammengefaßt sind und daß Mittel vorgesehen sind, mit denen die Bauteile miteinander verbunden sind, wobei das Modul ein Oberteil und ein Unterteil sowie wenigstens ein Mittelteil aufweist, wobei das Modul wenigstens einen Rohflüssigkeitseinlaß und einen Reinflüssigkeitsausiaß sowie wenigstens eine Schmutzrückhaltevorrichtung aufweist.1. An assembly for cleaning liquids, characterized in that components are combined to form a module and that means are provided with which the components are connected to one another, the module having an upper part and a lower part and at least one central part, the module at least has a raw liquid inlet and a clean liquid outlet and at least one dirt retention device.
2. Baugruppe nach Anspruch 1 , dadurch gekennzeichnet, daß die Bauteile lösbar miteinander verbunden sind. (n-Mittelteile, mit unterschiedl. Durchmessern)2. Module according to claim 1, characterized in that the components are detachably connected to each other. (n middle parts, with different diameters)
3. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Baugruppe wenigstens einen Rückspülein- und/oder -auslaß sowie die damit korrespondierende Filterrückspülvorrichtung aufweist.3. Assembly according to one or more of the preceding claims, characterized in that the assembly has at least one backwashing and / or outlet and the filter backwashing device corresponding therewith.
4. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Baugruppe wenigstens ein Zyklon aufweist.4. Assembly according to one or more of the preceding claims, characterized in that the assembly has at least one cyclone.
5. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Baugruppe wenigstens einen Strömungsleitapparat aufweist.5. An assembly according to one or more of the preceding claims, characterized in that the assembly has at least one flow guide.
6. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Baugruppe wenigstens einen Strömungsleitapparat aufweist, der höhenverstellbar ist.6. An assembly according to one or more of the preceding claims, characterized in that the assembly has at least one flow control device which is adjustable in height.
7. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Baugruppe wenigstens eine Schlammfalle aufweist. 7. Assembly according to one or more of the preceding claims, characterized in that the assembly has at least one mud trap.
8. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Schmutzrückhaltevorrichtung einen Spaltfiltereinsatz aufweist.8. An assembly according to one or more of the preceding claims, characterized in that the dirt retention device has a gap filter insert.
9. Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Baugruppe wenigstens einen Schmutzauslaß aufweist.9. Assembly according to one or more of the preceding claims, characterized in that the assembly has at least one dirt outlet.
10.Baugruppe nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Filterrückspülvorrichtung der Baugruppe über wenigstens einen Schaber verfügt. 10.Assembly according to one or more of the preceding claims, characterized in that the filter backwashing device of the assembly has at least one scraper.
PCT/EP1998/008287 1997-12-20 1998-12-17 Filter module for liquids WO1999032209A1 (en)

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