HUP9700703A1 - Method and apparatus especially for filtration of oil backwash - Google Patents
Method and apparatus especially for filtration of oil backwashInfo
- Publication number
- HUP9700703A1 HUP9700703A1 HU9700703A HUP9700703A HUP9700703A1 HU P9700703 A1 HUP9700703 A1 HU P9700703A1 HU 9700703 A HU9700703 A HU 9700703A HU P9700703 A HUP9700703 A HU P9700703A HU P9700703 A1 HUP9700703 A1 HU P9700703A1
- Authority
- HU
- Hungary
- Prior art keywords
- filter
- valve
- pump
- oil
- pressure
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 title 1
- 238000011001 backwashing Methods 0.000 abstract 3
Landscapes
- Filtration Of Liquid (AREA)
Abstract
Filters are cleaned by back-washing, using a pump (2) delivering oil to the filter inlet (4a), oil being returned from the filter discharge (4b) to the storage tank (1). During back-washing, the flow from the filter inlet (4a) is routed to a valve (6) which opens at a high pressure and closes at a lower pressure, it being closed at the start of the back-wash process. While the valve is closed, the pump (2) delivers oil to the pressure maintaining vessel (5). Opening the valve significantly reduces the pressure at the filter inlet, causing a high pressure, high velocity flow impulse through the filter. Inlet and discharge connections are connected via change-over valve to the pump and storage tank, so that during back-washing the pump is connected to the filter discharge, and the filter inlet is connected via the valve to the contaminated oil storage tank (7), and the pressure maintaining vessel is connected into the pipe between the filter discharge and the valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9700703A HU219514B (en) | 1997-04-04 | 1997-04-04 | Method and apparatus especially for filtration of oil backwash |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9700703A HU219514B (en) | 1997-04-04 | 1997-04-04 | Method and apparatus especially for filtration of oil backwash |
Publications (3)
Publication Number | Publication Date |
---|---|
HU9700703D0 HU9700703D0 (en) | 1997-05-28 |
HUP9700703A1 true HUP9700703A1 (en) | 1998-12-28 |
HU219514B HU219514B (en) | 2001-04-28 |
Family
ID=89994962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU9700703A HU219514B (en) | 1997-04-04 | 1997-04-04 | Method and apparatus especially for filtration of oil backwash |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU219514B (en) |
-
1997
- 1997-04-04 HU HU9700703A patent/HU219514B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HU9700703D0 (en) | 1997-05-28 |
HU219514B (en) | 2001-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HMM4 | Cancellation of final prot. due to non-payment of fee |