GB764578A - Improvements in or relating to automatic filters for liquids - Google Patents

Improvements in or relating to automatic filters for liquids

Info

Publication number
GB764578A
GB764578A GB4623/55A GB462355A GB764578A GB 764578 A GB764578 A GB 764578A GB 4623/55 A GB4623/55 A GB 4623/55A GB 462355 A GB462355 A GB 462355A GB 764578 A GB764578 A GB 764578A
Authority
GB
United Kingdom
Prior art keywords
liquid
under pressure
valve
filtered
flushing
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
Application number
GB4623/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB764578A publication Critical patent/GB764578A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D29/117—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 outward flow filtration
    • B01D29/118—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 outward flow filtration open-ended
    • 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
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/661—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by using gas-bumps
    • 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

Abstract

764,578. Filters. BERLINE, R. Feb. 16, 1955 [Feb. 18, 1954], No.4623/55. Class 46. In a filter of the kind in which filtration flow is from inside to outside the element and cleaning is by back-flushing, a reserve supply of filtered liquid under pressure is provided, inter alia to maintain filtrate output during backflushing, and in addition the admission of liquid to be filtered and discharge of sludge from the wall of the filter element are controlled by electromagnetically-operated valves. Liquid to be filtered is admitted through an electromagnetically-controlled valve 7 to the inside of a filter element 1 and the filtrate is kept under pressure either by partially closing a valve 12 on the outlet pipe 11 or by connecting the latter with a tank (not shown) under liquid or air pressure, so that a vessel 3 also contains filtered liquid under pressure and, by closing a vent 5, air under pressure. At predetermined intervals time-relay 9 closes the valve 7 and opens another valve 8 communicating with a drain 14 so that back-flushing and drainage of sludge occur while at the same time normal filtrate flow is maintained. The duration and frequency of back-flushing are governed by a dash-pot 10 and by the time-relay 9, respectively.
GB4623/55A 1954-02-18 1955-02-16 Improvements in or relating to automatic filters for liquids Expired GB764578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR764578X 1954-02-18

Publications (1)

Publication Number Publication Date
GB764578A true GB764578A (en) 1956-12-28

Family

ID=9182251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4623/55A Expired GB764578A (en) 1954-02-18 1955-02-16 Improvements in or relating to automatic filters for liquids

Country Status (1)

Country Link
GB (1) GB764578A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389797A (en) * 1965-12-20 1968-06-25 Bendix Corp Filtering system having dual cleaning means
WO2012074616A1 (en) * 2010-11-30 2012-06-07 General Electric Company Cross-flow filtration with turbulence and back-flushing action for use with online chemical monitors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389797A (en) * 1965-12-20 1968-06-25 Bendix Corp Filtering system having dual cleaning means
WO2012074616A1 (en) * 2010-11-30 2012-06-07 General Electric Company Cross-flow filtration with turbulence and back-flushing action for use with online chemical monitors
US8986552B2 (en) 2010-11-30 2015-03-24 General Electric Company Cross-flow filtration with turbulence and back-flushing action for use with online chemical monitors

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