Long-service-life turbine bearing structure for gas turbine
The invention discloses a long-service-life turbine bearing structure for a gas turbine. The long-service-life turbine bearing structure comprises a bearing casing (1) and a supporting plate. An inner casing (2) and a supporting plate fairing (3) are arranged in the bearing casing (1). The inner cas...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a long-service-life turbine bearing structure for a gas turbine. The long-service-life turbine bearing structure comprises a bearing casing (1) and a supporting plate. An inner casing (2) and a supporting plate fairing (3) are arranged in the bearing casing (1). The inner casing (2) comprises an inner runner outer casing and an inner runner inner casing. The inner runner outer casing is formed by splicing a plurality of same fan-shaped workpieces along the same circumference, and the inner runner inner casing is formed by splicing a plurality of same fan-shaped workpieces along the same circumference. The outer side of the supporting plate is provided with the supporting plate fairing (3). A cavity T is formed among the inner casing (2), the supporting plate fairing (3) and the bearing casing (1) and communicates with an air guiding hole (4). A protection heat isolation layer is additionally arranged in the casing, and therefore the service life of the turbine bearing casing is prolong |
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