GB1102150A - Fluid strainer - Google Patents
Fluid strainerInfo
- Publication number
- GB1102150A GB1102150A GB50444/65A GB5044465A GB1102150A GB 1102150 A GB1102150 A GB 1102150A GB 50444/65 A GB50444/65 A GB 50444/65A GB 5044465 A GB5044465 A GB 5044465A GB 1102150 A GB1102150 A GB 1102150A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- chamber
- valve
- relay
- backflushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 title abstract 6
- 238000001914 filtration Methods 0.000 abstract 8
- 230000001276 controlling effect Effects 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 230000004913 activation Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
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
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- 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
- B01D29/114—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 arranged for inward flow filtration
- B01D29/115—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 arranged for inward flow filtration open-ended, the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of 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
-
- 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
- B01D35/06—Filters making use of electricity or magnetism
-
- 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
- B01D35/153—Anti-leakage or anti-return valves
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Fluid-Pressure Circuits (AREA)
- Filtration Of Liquid (AREA)
Abstract
1,102,150. Filter with electrical fluid flow control. CARRIER CORPORATION. 26 Nov., 1965 [21 Dec., 1964], No. 50444/65. Heading B1D. Filtering apparatus for filtering a continously flowing stream of fluid involving backflushing by filtered liquid comprises a body member 10 with an inlet in cover 18 and an outlet in cover 20, two filtering chambers 14, 16 arranged for alternate parallel filtration, perforate cylindrical filter elements 38 in each chamber, valve means 26 positionable for selectively directing fluid flow through one of said chambers, drain means 62 or 64 allowing when open backflushing of filtered liquid through the filter element not performing filtration, and control means including cycle relays regulating electrical circuits controlling the position of valve means 26 and the opening of drain means 62 or 64 whereby the fluid flowpath may be changed to pass through the other filtering chamber and not through the first filtering chamber, and the backflushing action controlled over a predetermined time interval. The cycle relays may be selectively responsive to a combination of the position of the valve means 26 and hence switch 74, and either a pressure switch 52 (Fig. 2 and 3) responsive to a certain pressure differential between the inlet and outlet or a timer controlled switch 105 (Fig. 4, not shown). Switch means may be associated with each cycle relay for completing a holding circuit throughout said cycle relay for a predetermined time in the event of a change in either the valve position or pressure differential across the apparatus, said switch means being effective to prevent energization of the cycle relay other than the one associated therewith. Movement of valve means 26 is effected by compressed air from conduits 34 or 36 acting on piston head 33, which movement also causes flange 29 to change the position of switch 74 by engagement therewith. Opening and closing of drain valves 66, 68 is effected by compressed air. Perforated filter elements 38 comprise inlet openings (46) in their sides and may be withdrawn from the filter chamber after removal of the top covers (19). In use, with the valve means 26 in position as shown in Fig. 2 and with filtering flow through chamber 16 and backflushing through the filter element in chamber 14 having occured by the opening and closing of drain valve 66, and with switch 74 in the position as shown in Fig. 3, a certain pressure differential across switch 52 caused by clogging of the filter element 38 causes the switch 52 to close. This completes a circuit through normally closed switch 76, normally closed switch 78 and the solenoid controlling valve 58 to cause compressed air to be delivered through line 50 and conduit 34 to move piston 33 and valve member 26 to the left to stop liquid flow to chamber 16, allow fluid flow to chamber 14 and change the position of switch 74 (dotted line). At the same time, cycle control relay 70 is energised causing closure of contacts 79 of time delay switch 80 (e.g. with 10 seconds delay) to maintain activation of the solenoid controlling valve 58 and hence maintain flow of air through conduit 34 when switch 74 changes position and to provide a holding circuit through relay 70, also causing switch 82 to open to prevent energizing of cycle relay 72, and causing switch 84 to close to energize relay 86 which closes contacts 85 of time delay switch 88 (e.g. with 60 seconds delay.) Relay 86 also opens switch 86' and closes switch 90, thus energizing coil 87 to open valve 68 to permit backflushing through filter element 38 in chamber 16 and pipe 64. During backflushing the filter element in chamber 16 will be unclogged, the pressure differential across switch 52 will drop thus opening switch 52, cycle control relay 70 will be de-energized by opening of contact 81 of time delay switch 80, and then relay 86 will be de-energized by the opening of contacts 85 to open switch 90, deactivate relay 87, close valve 68 and thus terminate backflushing through conduit 64. When filter element 38 in chamber 14 becomes clogged, movement of valve means 26 and backflushing by opening of valve 66 is effected similarly involving relays 72 and 98, and time delay switches 94 and 100.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41963864A | 1964-12-21 | 1964-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1102150A true GB1102150A (en) | 1968-02-07 |
Family
ID=23663092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50444/65A Expired GB1102150A (en) | 1964-12-21 | 1965-11-26 | Fluid strainer |
Country Status (4)
Country | Link |
---|---|
US (1) | US3447684A (en) |
DE (1) | DE1292629B (en) |
FR (1) | FR1466609A (en) |
GB (1) | GB1102150A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2162081A (en) * | 1984-07-27 | 1986-01-29 | Dowty Group Services | Duplex filters |
GB2196269A (en) * | 1984-07-27 | 1988-04-27 | Dowty Group Services | Duplex filters |
FR2680982A1 (en) * | 1991-09-06 | 1993-03-12 | Defaud Roger | Autonomous device for filtering water feeding a system of droppers |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3804257A (en) * | 1970-10-19 | 1974-04-16 | H Sommermeyer | Fluid flow filter unit with magnetic and/or mechanical filter means |
US3741390A (en) * | 1971-12-13 | 1973-06-26 | Harsco Corp | Tertiary filter |
US3900955A (en) * | 1973-10-15 | 1975-08-26 | Joseph C Peterson | Apparatus for recovering sulfuric acid and ferrous sulfate crystals from spent pickle solution |
JPS542460Y2 (en) * | 1977-08-25 | 1979-02-01 | ||
US4257888A (en) * | 1979-05-01 | 1981-03-24 | Kudryavtsev Boris B | Cartridge filter |
DE2918805C2 (en) * | 1979-05-10 | 1985-03-14 | Semen Fedorovič Šolk | Filter device |
DE3307878A1 (en) * | 1983-03-05 | 1984-09-06 | Werner 2168 Drochtersen Siemens | Process for separating and discharging solid particles from a pressurised liquid and apparatus therefor |
US4960515A (en) * | 1989-02-27 | 1990-10-02 | Billmyre Richard D | Liquid recovery system |
US5037545A (en) * | 1989-02-27 | 1991-08-06 | Billmyre Richard D | Liquid recovery system and method |
US5670038A (en) * | 1995-09-06 | 1997-09-23 | Mckinney; Jerry L. | Liquid filter system |
US6991725B2 (en) * | 2002-10-25 | 2006-01-31 | Frerichs Stephen A | Switchable diesel fuel filter assembly |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US110217A (en) * | 1870-12-20 | Improvement in water-filters | ||
US1213764A (en) * | 1914-06-20 | 1917-01-23 | William S Elliott | Multiple-strainer system. |
US2183075A (en) * | 1935-11-29 | 1939-12-12 | Infilco Inc | Liquid control |
US2076322A (en) * | 1936-01-02 | 1937-04-06 | Permutit Co | Water filter battery control |
FR831897A (en) * | 1937-04-29 | 1938-09-15 | Device for unclogging industrial filters | |
US2441526A (en) * | 1944-08-09 | 1948-05-11 | Bethlehem Steel Corp | Automatic water strainer |
US2828017A (en) * | 1954-03-16 | 1958-03-25 | Helmer A Ronningen | Automatic backwashing filter |
US2969148A (en) * | 1957-01-18 | 1961-01-24 | Hirs Gene | Filter apparatus |
US2970696A (en) * | 1958-02-17 | 1961-02-07 | Indiana Commercial Filters Cor | Dual manifold filter |
US3157131A (en) * | 1960-06-10 | 1964-11-17 | Brydon John Paterson | Straining apparatus |
-
1964
- 1964-12-21 US US419638A patent/US3447684A/en not_active Expired - Lifetime
-
1965
- 1965-11-26 GB GB50444/65A patent/GB1102150A/en not_active Expired
- 1965-12-15 DE DEC37683A patent/DE1292629B/en active Pending
- 1965-12-21 FR FR43114A patent/FR1466609A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2162081A (en) * | 1984-07-27 | 1986-01-29 | Dowty Group Services | Duplex filters |
US4636306A (en) * | 1984-07-27 | 1987-01-13 | Dowty Mining Equipment Limited | Fluid filtering systems |
GB2196269A (en) * | 1984-07-27 | 1988-04-27 | Dowty Group Services | Duplex filters |
GB2196269B (en) * | 1984-07-27 | 1989-05-17 | Dowty Group Services | Fluid filtering systems |
GB2162081B (en) * | 1984-07-27 | 1989-06-01 | Dowty Group Services | Fluid filtering systems |
FR2680982A1 (en) * | 1991-09-06 | 1993-03-12 | Defaud Roger | Autonomous device for filtering water feeding a system of droppers |
Also Published As
Publication number | Publication date |
---|---|
DE1292629B (en) | 1969-04-17 |
FR1466609A (en) | 1967-01-20 |
US3447684A (en) | 1969-06-03 |
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