US3594095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casing for low-pressure stages of steam turbines of completely welded multishell construction
Assignee: Siemens AG
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Filing: 1969-12-02
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Granted: 1971-07-20
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Expires: 1989-12-02
Abstract
Abstract Housing assembly for low-pressure parts of steam turbines includes housing for the individual turbine parts mounted on foundation support independently of one another, the underportions of a respective outer housing of a turbine part being connected in the vicinity of an axial partial joint of the outer housing and at both longitudinal sides thereof with longitudinal support frame forming integral housing components and being mounted by ends of the longitudinal support frames, projecting beyond the faces of the outer housing on the foundation support, the outer housing at one face thereof being axially fixedly and horizontally displaceably mounted on support locations of the longitudinal support frame and at the other face thereof being both axially and horizontally displaceably mounted on support locations of the longitudinal support frame, the outer housing being heat-expansibly movable in axial direction thereof.
Inventors
- 👤 Werner Trassel
- 👤 Helmut Maghon
- 👤 Wilhelm Engelke
- 👤 Walter Klamet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
F; F01; F01D; F01D3/00; F01D3/02; F01D25/00; F01D25/24; F01D25/26; F01D25/28
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
209 words
Housing assembly for low-pressure parts of steam turbines of welded multishell construction having an axial partial joint and wherein the turbine parts are of single-flow construction or double-flow construction with central flow inlet, and wherein a plurality of turbine parts are mutually joinable axially in an nflow arrangement wherein n 2, 3, 4, 5, 6...., comprising a respective housing for each of the turbine parts including an outer housing and a coaxial thermally displaceably mounted inner housing therefor, foundation support means for supporting the housings of the turbine parts independently of one another, longitudinal support frames forming integral housing components, the respective outer housings having underportions connected in the vicinity of the axial partial joint of the respective housing and at both longitudinal sides thereof with said longitudinal support frames, and being mounted by ends of said longitudinal support frames, which project beyond the end faces of said outer housing, on said foundation support means, said outer housing at one face thereof being axially fixedly and horizontally displaceably mounted on support locations said longitudinal support frames and at the other face thereof being both axially and horizontally displaceably mounted on other support locations of said longitudinal support frames, said outer housing being heat expansibly movable in axial direction thereof.
Claim 2
Dependent Claim
209 words
Housing assembly for low-pressure parts of steam turbines of welded multishell construction having an axial partial joint and wherein the turbine parts are of single-flow construction or double-flow construction with central flow inlet, and wherein a plurality of turbine parts are mutually joinable axially in an nflow arrangement wherein n 2, 3, 4, 5, 6...., comprising a respective housing for each of the turbine parts including an outer housing and a coaxial thermally displaceably mounted inner housing therefor, foundation support means for supporting the housings of the turbine parts independently of one another, longitudinal support frames forming integral housing components, the respective outer housings having underportions connected in the vicinity of the axial partial joint of the respective housing and at both longitudinal sides thereof with said longitudinal support frames, and being mounted by ends of said longitudinal support frames, which project beyond the end faces of said outer housing, on said foundation support means, said outer housing at one face thereof being axially fixedly and horizontally displaceably mounted on support locations said longitudinal support frames and at the other face thereof being both axially and horizontally displaceably mounted on other support locations of said longitudinal support frames, said outer housing being heat expansibly movable in axial direction thereof.
Claim 3
Dependent Claim
44 words
Housing assembly according to claim 1, wherein said inner housings, said outer housings, and said longitudinal support frames as well as bearing stands for the turbine parts are of respective similar construction and are assemblable for turbine parts having an even number of flows.
Claim 4
Dependent Claim
56 words
Housing assembly according to claim 1, wherein the turbine has a shaft supported by bearing stands, and including a stuffing box housing rigidly connected with a respective bearing stand, said outer housing being formed with a diffuser part steamtightly connected to and conically surrounding said stuffing box housing with a softly bendable elastic member interposed therebetween.
Claim 5
Dependent Claim
48 words
Housing assembly according to claim 1, wherein said longitudinal support frames are formed of boxlike supports having a top surface substantially aligned with the axial partial joint of the housing, said top surface carrying an outer partial joint flange formed on an upper portion of said outer housing.
Claim 6
Dependent Claim
51 words
Housing assembly according to claim 4, wherein said longitudinal support frames have a stepliKe termination at said supporting ends thereof forming support paws extending collarlike substantially halfway up the profile elevation of said longitudinal support frames, and lateral and cover crosspieces secured to said longitudinal support frames for reinforcing said paws.
Claim 7
Dependent Claim
36 words
Housing assembly according to claim 1, wherein said upper and lower portions of said outer housing are formed at said end faces thereof as arched boxlike supports having wide-area partial joint flanges clamped to one another.
Claim 8
Dependent Claim
54 words
Housing assembly according to claim 6, wherein said longitudinal support frames are provided with inner lateral cheeks, said cheeks forming lateral wall portions of said lower portion of said outer housing, and including a box-shaped steam exhaust pipe welded to said lateral wall portions and to the lower one of said arched boxlike supports.
Claim 9
Dependent Claim
50 words
Housing assembly according to claim 7, wherein said steam exhaust pipe is connected to the base of a box-shaped condenser, said condenser being supported through spring supports on second foundation surface means located above first foundation surface means whereby part of the weight of the turbine part is absorbed thereby.
Claim 10
Dependent Claim
28 words
Housing assembly according to claim 7, wherein said steam exhaust pipe has walls reinforced by ribbing formed of supports that are welded to the outside of said walls.
Claim 11
Dependent Claim
39 words
Housing assembly according to claim 7, wherein said steam exhaust pipe is formed with walls, and including a supporting tube framework formed of longitudinal, transverse, inclined and vertical tubes bridging and reinforcing said walls on the inner side thereof.
Claim 12
Dependent Claim
44 words
Housing assembly according to claim 1, including means for axially fixing said outer housing located at support locations of said longitudinal support frames at an end face of said outer housing facing toward a preconnected turbine part having a pressure other than low pressure.
Claim 13
Dependent Claim
57 words
Housing assembly according to claim 1, wherein said support locations of said longitudinal support frames at both end faces of said outer housing are formed with support paws are horizontally displaceably mounted on slide keys, and including fixing keys additionally located at said end face of said outer housing at which said outer housing is axially fixed.
Claim 14
Dependent Claim
38 words
Housing assembly according to claim 1, including four overflow lines extending laterally to said outer housing in symmetrical arrangement, said overflow lines being mounted in respective quadrants of said outer and inner housings with shaft tube compensators interposed.
Claim 15
Dependent Claim
26 words
Housing assembly according to claim 13, wherein the overflow lines in the lower quadrants of said outer and inner housings extend through said longitudinal support frames.
Claim 16
Dependent Claim
61 words
Housing assembly according to claim 4, wherein said longitudinal support frames in the vicinity of the upper edge thereof facing said housing portions are formed with cutouts for receiving therein respective paws formed on the underportion of said inner housing so as to align the axial partial joint of said inner housing with the axial partial joint of said outer housing.
Claim 17
Dependent Claim
65 words
Housing according to claim 11, wherein four paws and correspondingly four bearing locations are provided in rectangular symmetrical arrangement for the underportion of said inner housing, a pair of said bearing locations and a pair of said paws being located at one end face of said outer housing and being provided thereat with fixing keys for axially fixedly yet radially displaceably mounting said outer housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |