GB873962A - Improvements in and relating to method and apparatus for cleaning a filter - Google Patents
Improvements in and relating to method and apparatus for cleaning a filterInfo
- Publication number
- GB873962A GB873962A GB22582/58A GB2258258A GB873962A GB 873962 A GB873962 A GB 873962A GB 22582/58 A GB22582/58 A GB 22582/58A GB 2258258 A GB2258258 A GB 2258258A GB 873962 A GB873962 A GB 873962A
- Authority
- GB
- United Kingdom
- Prior art keywords
- level
- conduit
- container
- pool
- valve
- 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
- 238000004140 cleaning Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 230000009182 swimming Effects 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
-
- 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
- B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
873,962. Filters. GRUNDWASSERBAUTEN A.G., FUER. July 15, 1958 [Sept. 6, 1957], No. 22582/58. Class 46. Water from a swimming pool 7 filled to the level 15 passes along a conduit 11 which includes a valve 16 acting as a flow resistance and flows over the edge 14 of a filter container 1, whence it is withdrawn by a pump 5 and returned, filtered, along a conduit 6 to another part of the pool (not shown). The rate of delivery of the pump and the flow resistance of conduit 11 and valve 16 are all adjusted so that the level in container 10 above container 1 is substantially below the upper end, 13, of an overflow pipe 12, the end 13 being slightly below the level 15. Upon reversal of direction of the pump (e.g. by automatic time-operated reversal of motor 8) the direction of liquid flow through the bed 4 is reversed, the level in container 10 rising until 13 is reached, whereupon the water with impurities flows down pipe 12 into sewer 18. Backflow along conduit 11 to pool 7 is prevented either by the slight presure head 15-13, or by the. resistance of conduit 11 and valve 16 if the level in container 10 should be above 15. In Fig. 3 (not shown), the filter bed is in a closed tank wholly above the water level in the swimming pool and the water from the pool reaches the tank via a non-return valve in a pipe leading by a T-junotion to the top of the tank, the other arm of the T also having a non-return valve and leading to the sewer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH873962X | 1957-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB873962A true GB873962A (en) | 1961-08-02 |
Family
ID=4544251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22582/58A Expired GB873962A (en) | 1957-09-06 | 1958-07-15 | Improvements in and relating to method and apparatus for cleaning a filter |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB873962A (en) |
-
1958
- 1958-07-15 GB GB22582/58A patent/GB873962A/en not_active Expired
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