IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0279103
(2007-01-12)
|
등록번호 |
US-7824459
(2010-11-22)
|
우선권정보 |
SE-0600312(2006-02-13) |
국제출원번호 |
PCT/SE2007/050013
(2007-01-12)
|
§371/§102 date |
20080923
(20080923)
|
국제공개번호 |
WO07/094725
(2007-08-23)
|
발명자
/ 주소 |
- Borgström, Leonard
- Carlsson, Claes-Göran
- Skoog, Jan
- Ridderstråle, Rolf
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
38 인용 특허 :
8 |
초록
▼
In a centrifugal separator for cleaning a gas containing liquid impurities, a stationary casing encloses a separation space having an inner wall surface. An inlet is provided. A rotating member is provided in the separation space downstream the inlet rotates in a direction of rotation around an axis
In a centrifugal separator for cleaning a gas containing liquid impurities, a stationary casing encloses a separation space having an inner wall surface. An inlet is provided. A rotating member is provided in the separation space downstream the inlet rotates in a direction of rotation around an axis of rotation. The rotating member brings the gas to rotation in the direction of rotation for separation of liquid impurities from the gas. A gas outlet is provided downstream the rotating member for discharge of the cleaned gas. A first liquid outlet is provided upstream the gas outlet and downstream the rotating member for discharge of separated liquid impurities and comprises an outlet hole. A surrounding ring groove extends outwardly from the inner wall surface in the stationary casing and has a surrounding bottom surface, wherein the outlet hole extends outwardly from the bottom surface.
대표청구항
▼
What is claimed is: 1. A centrifugal separator for cleaning of a gas containing liquid impurities, wherein the centrifugal separator comprises: a stationary casing, which encloses a separation space and has an inner wall surface facing the separation space, wherein the separation space permits the
What is claimed is: 1. A centrifugal separator for cleaning of a gas containing liquid impurities, wherein the centrifugal separator comprises: a stationary casing, which encloses a separation space and has an inner wall surface facing the separation space, wherein the separation space permits the gas to flow therethrough; an inlet for the gas to be cleaned; a rotating member, which is provided in the separation space downstream the inlet with respect to the gas flow and arranged to rotate in a direction (r) of rotation around an axis (x) of rotation, wherein the rotating member is adapted to bring the gas to rotation in the direction (r) of rotation for separation by means of centrifugal forces of at least a part of the liquid impurities from the gas; a gas outlet, which with respect to the gas flow is provided downstream the rotating member for discharge of the cleaned gas; and a first liquid outlet, which is provided upstream the gas outlet and downstream the rotating member for discharge of the liquid impurities, and which comprises at least one outlet hole, a surrounding ring groove, which extends outwardly from the inner wall surface in the stationary casing and has a surrounding bottom surface, and wherein the outlet hole extends outwardly from the bottom surface. 2. A centrifugal separator according to claim 1, wherein the first liquid outlet also comprises an annular collecting channel, which extends around the separation space radially outside the ring groove. 3. A centrifugal separator according to claim 2, wherein the outlet hole extends between the ring groove and the collecting channel. 4. A centrifugal separator according to claim 1, wherein the ring groove has a first limiting wall, which extends downstream the bottom surface between the bottom surface and the inner wall surface, wherein the outlet hole has an upper point which lies substantially at the level of the first limiting wall. 5. A centrifugal separator according to claim 4, wherein the first limiting wall extends substantially in parallel with a radial plane. 6. A centrifugal separator according to claim 1, wherein the ring groove has a second limiting wall, which extends upstream the bottom surface between the bottom surface and the inner wall surface. 7. A centrifugal separator according to claim 6, wherein the second limiting wall is inclined in relation to a radial plane. 8. A centrifugal separator according to claim 1, wherein the centrifugal separator comprises at least one guide vane, which is provided to control the flow of the separated liquid impurities through the outlet hole. 9. A centrifugal separator according to claim 8, wherein the guide vane extends through the outlet hole. 10. A centrifugal separator according to claim 8, wherein the guide vane extends in at least one direction, which is inclined outwardly and forwardly in relation to a tangent to the direction (r) of rotation at the outlet hole. 11. A centrifugal separator according to claim 1, wherein the outlet hole in relation to the direction of rotation has a forward limiting surface and a rearward limiting surface, wherein at least one of these limiting surfaces extends in a direction, which is inclined outwardly and forwardly in relation to a tangent to the direction (r) of rotation at the outlet hole. 12. A centrifugal separator according to claim 1, wherein the centrifugal separator comprises a second liquid outlet which is provided upstream the first liquid outlet. 13. A centrifugal separator according to claim 12, wherein the second liquid outlet, forms a main outlet and the first liquid outlet forms a residual outlet. 14. A centrifugal separator according to claims 12, wherein the second liquid outlet comprises an annular collecting channel, which extends around the separation space radially outside the inner wall surface. 15. A centrifugal separator according to claim 14, wherein the second liquid outlet comprises at least one outlet hole which extends between the separation space and the collecting channel. 16. A centrifugal separator according to claim 12, wherein the second liquid outlet is provided at the lower end. 17. A centrifugal separator according to claim 16, wherein the separation space comprises a lower annular end surface, which extends between the rotating member and the inner wall surface, wherein the lower end surface is configured to transport liquid impurities radially outwardly to the second liquid outlet. 18. A centrifugal separator according to claim 17, wherein the centrifugal separator comprises a number of guide elements provided on the lower end surface and arranged to promote said transport. 19. A centrifugal separator according to claim 18, wherein said guide elements seen radially outwardly are directed forwardly in the direction (r) of rotation. 20. A centrifugal separator according to claim 18, wherein said guide elements are configured as ribs which extend upwardly from the lower end surface. 21. A centrifugal separator according to claim 18, wherein said guide elements are configured as grooves extending downwardly from the lower end surface. 22. A centrifugal separator according to claim 17, wherein the lower end surface is conical and inclined outwardly and downwardly. 23. A centrifugal separator according to claim 1, wherein the centrifugal separator is arranged to be provided in such a way that the axis (x) of rotation extends substantially vertically, wherein the stationary casing has an upper end and a lower end and wherein the gas outlet is provided at the upper end. 24. A centrifugal separator according to claim 1, wherein the rotating member comprises a number of separating discs.
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