IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0650885
(2003-08-28)
|
우선권정보 |
DE-0011187 (2001-03-08) |
§371/§102 date |
20010614
(20010614)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Siemens Aktiengesellschaft
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
The invention relates to a steam line closing valve for closing a steam line, especially in a steam turbine plant between a first partial turbine and at least one second partial turbine that is operated at a lower pressure than the first partial turbine. According to the invention, the steam line cl
The invention relates to a steam line closing valve for closing a steam line, especially in a steam turbine plant between a first partial turbine and at least one second partial turbine that is operated at a lower pressure than the first partial turbine. According to the invention, the steam line closing valve is subdivided into a plurality of elements that cooperate to cover the cross-section of the steam line, thereby reducing the moment of inertia Iy of the elements.
대표청구항
▼
1. A steam line isolation valve for closing a steam line, particularly in a steam turbine system between a first expansion stage and least one second expansion stage which is operated at lower pressure than the first expansion stage, characterized by a plurality of elements jointly covering the cros
1. A steam line isolation valve for closing a steam line, particularly in a steam turbine system between a first expansion stage and least one second expansion stage which is operated at lower pressure than the first expansion stage, characterized by a plurality of elements jointly covering the cross-section of the steam line, at least one of the elements is provided with one or more permanent recesses which do not extend over the entire thickness d of the elements.2. The steam line isolation valve according to claim 1, wherein the recesses-become deeper towards the edge of the element.3. The steam line isolation valve according to claim 2, wherein the elements are matched to the cross-section of the steam line, or the cross-section of the steam line is matched to the elements, or both the cross-section of the steam line and the elements are varied.4. The steam line isolation valve according to claim 2, wherein the elements have the same width b.5. The steam line isolation valve according to claim 2, wherein the elements have different dimensions for matching to the cross-section of the steam line.6. The steam line isolation valve according to claim 2, wherein the elements have the same moment of inertia Iy about an axis of rotation y.7. The steam line isolation valve according to claim 2, wherein the elements of the steam line isolation valve can move independently of one another.8. The steam line isolation valve according to claim 2, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.9. The steam line isolation valve according to claim 1, wherein the elements are matched to the cross-section of the steam line, or the cross-section of the steam line is matched to the elements or both the cross-section of the steam line and the elements are varied.10. The steam line isolation valve according to claim 9, wherein at least one of the elements has a rounding.11. The steam line isolation valve according to claim 10, wherein the elements have the same width b.12. The steam line isolation valve according to claim 10, wherein the elements have different dimensions for matching to the cross-section of the steam line.13. The steam line isolation valve according to claim 10, wherein the elements have the same moment of inertia Iy about an axis of rotation y.14. The steam line isolation valve according to claim 10, wherein the elements of the steam line isolation valve can move independently of one another.15. The steam line isolation valve according to claim 10, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.16. The steam line isolation valve according to claim 9, wherein the elements have the same width b.17. The steam line isolation valve according to claim 9, wherein the elements have different dimensions for matching to the cross-section of the steam line.18. The steam line isolation valve according to claim 9, wherein the elements have the same moment of inertia Iy about an axis of rotation y.19. The steam line isolation valve according claim 9, wherein the elements of the steam line isolation valve can move independently of one another.20. The steam line isolation valve according to claim 9, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.21. The steam line isolation valve according to claim 1, wherein the elements have the same width b.22. The steam line isolation valve according to claim 21, wherein the elements have the same moment of inertia Iy about an axis of rotation y.23. The steam line isolation valve according to claim 21, wherein the elements of the steam line isolation valve can move independently of one another.24. The steam line isolation valve according to claim 21, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.25. The steam line isolation valve according to claim 1, wherein the elements have different dimensions for matching to the cross-section of the steam line.26. The steam line isolation valve according to claim 25, wherein the elements have the same moment of inertia Iy about an axis of rotation y.27. The steam line isolation valve according to claim 25, wherein the elements of the steam line isolation valve can move independently of one another.28. The steam line isolation valve according to claim 25, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.29. The steam line isolation valve according to claim 1, wherein the elements have the same moment of inertia Iy about an axis of rotation y.30. The steam line isolation valve according to claim 29, wherein the elements of the steam line isolation valve can move independently of one another.31. The steam line isolation valve according to claim 29, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.32. The steam line isolation valve according to claim 1, wherein the elements of the steam line isolation valve move independently of one another.33. The steam line isolation valve according to claim 1, wherein a plurality of elements of the steam line isolation valve are connected to a common drive via a gear.34. The steam line isolation valve according to claim 1, wherein the elements have the same width b.35. A steam turbine system with at least one first expansion stage and at least one second expansion stage which is operated at lower pressure than the first expansion stage, of which there is at least one, and having at least one steam line for feeding the second expansion stage, characterized in that there is disposed in each of the steam lines, upstream of supply lines to the second expansion stage, a steam line isolation valve of claim 1.36. A steam line isolation valve for closing a steam line, particularly in a steam turbine system between a first expansion stage and at least one second expansion stage which is operated at lower pressure than the first expansion stage, comprising:a plurality of elements jointly covering the cross-section of the steam line; and a permanent recess provided in at least one element, the recesses does not extend over the entire thickness d of the element and become deeper towards the edge of the element.
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