Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/30—Filter housing constructions
  • 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
  • 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
  • B01D29/01—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 flat filtering elements
  • B01D29/018—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 flat filtering elements ring shaped
• • 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
  • B01D29/50—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
  • B01D29/56—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 series connection
  • B01D29/58—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 series connection arranged concentrically or coaxially
• • 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
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/143—Filter condition indicators
• • 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
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/147—Bypass or safety valves
• • 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
  • B01D35/18—Heating or cooling the filters
  • B01D35/185—Heating or cooling the filters comprising a vaporizing unit
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/18—Filters characterised by the openings or pores
  • B01D2201/188—Multiple filtering elements having filtering areas of different size

Definitions

• the invention relates to a filter for the removal of Verun ⁇ Cleaner out, in particular liquid media such as lubricating oils, Kraft ⁇ materials for internal combustion engines, hydraulic fluids or the like.
• a filter for the removal of Verun ⁇ Cleaner out in particular liquid media such as lubricating oils, Kraft ⁇ materials for internal combustion engines, hydraulic fluids or the like.
• the inflow chamber is connected to at least one outflow chamber via at least one filter element and additionally via a bypass channel bridging the filter element, in which a Overpressure in the inflow chamber opening safety valve is arranged, which is connected to a triggering element when opened for a display and / or switching device.
• the invention proposes, starting from a filter of the type described in the introduction, that the filter element consists of a filter screen which is located in the separating plane between adjacent ones Housing parts is arranged and forms at least part of the partition between an inflow chamber and an outflow chamber.
• the filter element consists of a sieve makes it possible to set the desired degree of purity of the filter according to the invention in a simple manner. It is only necessary to use a filter screen with the desired mesh size. If the desired degree of purity is to be changed, it is only necessary to replace the previously used screen with one with a larger or smaller mesh size.
• the use of • sieves therefore has a significant advantage.
• the disadvantage of using such screens is that the screen openings are easily clogged and that the filter can no longer function properly. This disadvantage can be eliminated by the fact that the bypass channel with the safety valve and a display and / or switching device is now provided.
• Another advantage that results from the use of sieves as filter elements is that it is possible to arrange these sieves in the plane between adjacent housing parts in such a way that they cover at least part of the partition between an inflow chamber arranged in one housing part and form an outflow chamber arranged in the other housing part.
• This not only facilitates the arrangement and exchange of the sieves and enables simple fixing by connecting the adjacent housing parts, but above all this design has the considerable advantage that the filter according to the invention is constructed according to a kit system, so that different filters are put together from different basic elements of the housing and the filters can thereby be designed according to the requirements.
• the filter screen preferably in the center, has an opening through which the bypass channel, sealed off from the screen openings, extends.
• the bypass channel can be accommodated in a simple manner and forms a direct connection between the inflow chamber and outflow chamber.
• lubricating oil for example, the main amount of lubricating oil is often only roughly cleaned and only a portion of the lubricating oil to be cleaned is branched off in the bypass flow and subjected to fine cleaning. In practice, this process has proven to be sufficient for the required cleaning of the total amount of lubricating oil.
• the arrangement is expediently such that two outflow chambers are provided in the housing, both of which are connected to a single inflow chamber via a filter screen and one of which is in a main flow and one in a secondary flow of the cleaning medium and that only one filter sieve, preferably the filter sieve located in the main flow, is bridged by a bypass channel.
• the arrangement of this bypass channel in the main flow ensures that an amount sufficient to supply the connected machine is always conveyed via the main flow.
• the delivery of a certain amount in the bypass flow is not critical.
• a spatially advantageous arrangement results in this configuration if, according to the invention, the two outflow chambers are arranged adjacent to the two opposite sides of the inflow chamber.
• a further improvement in the degree of purity can be achieved in that at least one outflow chamber is connected to a heated evaporation chamber.
• the evaporation chamber can also be connected to a vacuum device.
• this evaporation chamber which is known per se and which is described in connection with a filter insert made of fiber material for removing the solid impurities, is carried out by heating or by connection to a vacuum device which prevents the formation of a negative pressure caused in the evaporation chamber, an evaporation of in which can not be removed to be cleaned and the water medium contained the -fllutter 's components contained in the medium to be cleaned, so those components through the filter.
• FIG.l shows a filter according to the invention with a single inflow chamber and a single outflow chamber.
• FIG. 2 also shows in section a further embodiment of the filter according to the invention with two outflow chambers.
• the filter shown in Fig. 1 has a housing 1, which consists of two parts 1 ', 1 ". In the separating plane between the two parts 1'.l" there is a filter screen 2. In the housing part 1' there is an inflow chamber 3, which is connected via a connecting piece 4 to a feed line for the liquid to be cleaned, for example lubricating oil.
• the filter screen 2 is located in the plane between the two housing parts 1 ′, 1 ′′, thus forming the partition between the inflow chamber 3 and the outflow chamber 5 ′ .
• the medium supplied via the connecting piece 4 of the inflow chamber 3 thus passes through the filter screen 2, where the contamination of this medium is removed, and reaches the outflow chamber 5, from where it is discharged via the connecting piece 6.
• a bypass channel 7 bridging the filter screen 2, in which a safety valve 8 is provided which opens when an overpressure occurs in the inflow chamber 3.
• This safety valve 8, which consists of a cooperating with a valve seat, the closing member forming ball 9, thus allows a transfer of the medium to be cleaned from the inflow chamber 3 in the outflow chamber 5 when the openings of the filter screen 2 are moved and therefore none or only one insufficient quantity of the medium to be cleaned reaches the outflow chamber 5 via this filter screen.
• the safety valve 8 actuates an electrical switch 10 which is connected via a line (not shown) to a display and / or switching device (also not shown).
• a display and / or switching device also not shown.
• an optical or acoustic alarm is triggered via this device or, if necessary with a certain time delay, a switching operation is carried out automatically, that device, for example in the case of lubricating oil to be cleaned, the internal combustion engine to be lubricated or, in the case of fuel to be cleaned, the injection pump influences this internal combustion engine. This prevents a large amount of unpurified Medium passes through the bypass channel 7.
• the bypass channel 7 passes through an opening 11 in the center of the filter screen 2 and is sealed off from the screen openings.
• the embodiment according to FIG. 2 differs from the embodiment according to FIG. 1 in that the housing 1 consists of three housing parts l ', l ⁇ r , l "'.
• the inflow chamber 3 is arranged in the middle housing part l 1 and again via a connecting piece 4 is connected to a supply line for the medium to be cleaned.
• Each of the two outflow chambers has a connecting piece 6 ', 6" for the discharge of the cleaned
• the transfer of this medium from the single inflow chamber 3 into “ the two outflow chambers 5 ', 5" takes place via two filter screens 2', 2 ", which are again in the separating levels between the housing parts ' l ', l", l "' are arranged and form the partition between the inflow chamber 3 and the two outflow chambers 5 ", 5".
• the main flow of the medium to be cleaned is passed via the filter screen 2 "into the outflow chamber 5", a secondary flow through the "filter screen 2 'into the outflow chamber 5'.
• the filter screen 2 " is bridged by a bypass channel 7, in which a safety valve 8 is again provided.
• the design of the safety valve 8 corresponds to that in FIG. 1.
• the safety valve 8 actuates an electrical switch 10 when it responds, the at its closing activates the display and / or switching device.
• the housing in the Austechnologyu ⁇ gsform to Fig.3 1 the housing consists of four housing parts 1 ', 1 ", 1"', 1.
• the inlet chamber 3 is located in the housing part l 1.
• the medium to be cleaned is again fed through a connecting piece 4. From the inflow chamber 3, the medium to be cleaned passes through two filter sieves 2a ', 2b 1 connected in series to a first outflow chamber 5'.
• the two filter sieves 2a ', 2b' are through a spacer 11
• the filter screen 2a ' is coarse-meshed and retains the larger impurities
• the filter screen 2b' has a smaller one Mesh size and retains the smaller impurities.
• the main flow of the medium to be cleaned is discharged from the outflow chamber 5 'through the connecting piece 6'.
• a branched side stream flows from the outflow chamber 5 'via the filter screen 2 "into the second outflow chamber 5".
• the outflow chamber 5 ′′ is with the inflow chamber 3 again connected via the bypass channel 7, in which the safety valve 8 is arranged, which actuates the electrical switch 10.
• the medium cleaned by means of the filter screen 2 "passes via a channel 12 into an evaporation chamber 13, in which the volatile impurities, which, for example due to the fact that they form an acid, cause increased wear, are eliminated by evaporation
• This evaporation chamber has an evaporation plate 14 with a stepped surface, on which the medium to be cleaned spreads and along which this medium runs downwards.
• the evaporation chamber 13 is connected to a vacuum device via a vacuum connection 15, as a result of which a vacuum in the evaporation chamber 13
• This negative pressure causes the water contained in the liquid medium to be cleaned and the " other volatile impurities " contained in this medium to evaporate and to be drawn off via the negative pressure connection 15. This also eliminates this water and these volatile components.
• the cleaned medium is discharged through the connecting piece 16 connected to the evaporation chamber 13.
• the evaporation chamber 13 can be heated. This heating can be carried out, for example, by electrically heated heating elements 17 or a heating mat, not shown, embedded in the step-shaped surface, but also in that the medium to be cleaned, when heated, for example the warm lubricating oil of a Bre ⁇ kraftmaschi ⁇ e, before entering the Inflow chamber 3 is passed through heating coils arranged in the evaporation chamber 13.
• one or more filter screens 2, 2 ', 2 can be replaced by two or more than two filter screens connected in series, as shown in FIG. 3 for the filter screens 2a', 2b- 'connected in series Mesh size of these series-connected filter sieves separated by spacers is graded, and is so large for the sieve with the largest mesh size, for example, that solids in the order of 80 ⁇ , for sieve with the smallest mesh size, for example, so large that solids in the order of be held back.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
• Filtration Of Liquid (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=3524927

Family Applications (1)

Country Status (9)

Cited By (3)

Citations (4)

Family Cites Families (4)

• 1987
  • 1987-08-04 AT AT0196787A patent/AT389458B/de not_active IP Right Cessation
• 1988
  • 1988-08-02 CS CS540988A patent/CS274471B2/cs unknown
  • 1988-08-03 EP EP88907193A patent/EP0377602A1/de not_active Withdrawn
  • 1988-08-03 YU YU149988A patent/YU46474B/sh unknown
  • 1988-08-03 WO PCT/AT1988/000059 patent/WO1989000881A1/de not_active Application Discontinuation
  • 1988-08-03 HU HU884713A patent/HU205276B/hu not_active IP Right Cessation
  • 1988-08-04 PL PL27406788A patent/PL274067A1/xx unknown
  • 1988-08-04 ES ES8802453A patent/ES2007982A6/es not_active Expired
• 1990
  • 1990-02-01 BG BG091094A patent/BG91094A/bg unknown

Patent Citations (4)

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