摘要:
The invention relates to a turbine blade (63, 65) comprising a vane (67, 69) that runs along a blade axis (73, 75) and a platform region (61), which is located at the root of the vane (67, 69) and has a platform (71) that extends transversally to the blade axis (73, 75). The aim of the invention is to configure a delimitation (87) of a flow channel (5) of a gas turbine (1) in the simplest possible manner. To achieve this, the platform (71) is configured by an elastic sheet metal part (77, 79) that rests on the vane (67, 69). Said part leads to a gas turbine (1) comprising a flow conduit (5) that runs along an axis (3) of the gas turbine (1), said conduit having an annular cross-section for a working medium (M) and a second (9, 13) vane stage (7, 9, 11, 13) that is situated downstream of a first (7, 11) vane stage, which runs along the axis (3). According to the invention, a vane stage comprises a number of turbine blades (63, 65) that are arranged in a ring and extend radially into the flow channel (5) in accordance with the inventive concept.
摘要:
The invention relates to a turbine blade (1) comprising an input flow area (8), an output flow area (9), a pressing side (10) and aspiration side (11) situated opposite each other and between said areas, and a wall structure (2) around which a fluid (18) is able to circulate. The wall structure (2) consists of an outer wall (3) which surrounds an inner chamber (21) for guiding cooling fluid (6) and has an outlet (16) for said cooling fluid (6). The outlet (16) has a thickening (14) pointing towards the inner chamber (21). The invention further relates to the use of a turbine blade (1) in a gas turbine.
摘要:
The invention relates to an insert element (14) for fastening to a annular segment body (25) of a turbine (11) of a gas turbine (10). The annular segment body (25) has a recess (23) on a hot-gas side (27). The insert element (14) is designed to cover the recess (23) and has a concave front side (15) and a rear side (16) having at least one shaped portion (17, 18) for positioning on the annular segment body (25). The invention also relates to an annular segment (13) comprising the insert element (14), a gas turbine (10) comprising the insert element (14) and a mounting method for mounting the insert element (14).
摘要:
The invention relates to a turbine blade (67) comprising a vane (67) that runs along a blade axis (73) and a platform region (61), which is located at the root of the vane (67) and has a platform (71) that extends transversally to the blade axis (73). The aim of the invention is to guarantee the improved cooling of a platform region and the transition region (65) from a turbine blade (67) to a platform (71) of a turbine blade (63), thus ensuring the cooling of the delimitation of a flow channel (5) in a gas turbine (1). To achieve this, the platform (71) comprises a first platform wall (70) that does not support the vane (67) and a second platform wall (69) that supports said vane (67). According to the inventive concept, at the root of the vane (67) and over the course of the transition region (65) from the turbine blade (67) to the platform (71), said first platform wall is aerodynamically curved (104) and the course of the second platform wall (69) has a receding shoulder (103) in relation to the first platform wall (70), as a continuation of the vane (67).
摘要:
The invention relates to a turbine blade (67) comprising a vane (67) that runs along a blade axis (73) and a platform region (61), which is located at the root of the vane (67) and has a platform (71) that extends transversally to the blade axis (73). The aim of the invention is to guarantee the improved cooling of a platform region and the transition region (65) from a turbine blade (67) to a platform (71) of a turbine blade (63), thus ensuring the cooling of the delimitation of a flow channel (5) in a gas turbine (1). To achieve this, the platform (71) comprises a first platform wall (70) that does not support the vane (67) and a second platform wall (69) that supports said vane (67). According to the inventive concept, at the root of the vane (67) and over the course of the transition region (65) from the turbine blade (67) to the platform (71), said first platform wall is aerodynamically curved (104) and the course of the second platform wall (69) has a receding shoulder (103) in relation to the first platform wall (70), as a continuation of the vane (67).
摘要:
The invention relates to an insert element (14) for covering a recess (23) of a ring segment body (25) of a turbine (11) of a gas turbine (10). The ring segment body (25) has a recess (23) on a hot-gas side (27). The insert element (14) has a concavely shaped front face (15) and a rear face (16) with a rear face profile (17), and the rear face profile (17) corresponds to a negative shape of a profile (22) of the recess (23). The invention additionally relates to a ring segment (13) comprising the insert element (14), to a gas turbine (10) comprising the insert element (14), and to an assembly method for assembling the insert element (14).
摘要:
The invention relates to a turbine blade (63, 65) comprising a vane (67, 69) that runs along a blade axis (73, 75) and a platform region (61), which is located at the root of the vane (67, 69) and has a platform (71) that extends transversally to the blade axis (73, 75). The aim of the invention is to configure a delimitation (87) of a flow channel (5) of a gas turbine (1) in the simplest possible manner. To achieve this, the platform (71) is configured by an elastic sheet metal part (77, 79) that rests on the vane (67, 69). Said part leads to a gas turbine (1) comprising a flow conduit (5) that runs along an axis (3) of the gas turbine (1), said conduit having an annular cross-section for a working medium (M) and a second (9, 13) vane stage (7, 9, 11, 13) that is situated downstream of a first (7, 11) vane stage, which runs along the axis (3). According to the invention, a vane stage comprises a number of turbine blades (63, 65) that are arranged in a ring and extend radially into the flow channel (5) in accordance with the inventive concept.
摘要:
The invention relates to a turbine blade (15) of a gas turbine (1) comprising a suction-side blade wall (26) and a pressure-side blade wall (24) that, in the trailing edge area (21), runs toward the suction-side blade wall. This suction-side blade wall (26) has a trailing edge projection (28) projecting over the end edge (27) of the pressure-side blade wall (24) at least in a partial section of the trailing edge area (21). The aim of the invention is to design a turbine blade of the aforementioned type that has a particularly long serviceable life while requiring little cooling air. To this end, the pressure-side surface of the trailing edge projection (28) has a number of trough-shaped recesses (32) that increase the transfer of heat from the trailing edge projection (28) by a local swirling of the cooling air (K).