Module for a turbomachine
The present invention relates to a module for a turbomachine, with a guide vane arrangement, a seal carrier, which is arranged radially inside an inner platform of the guide vane arrangement, seal carrier walls, namely, a first seal carrier wall and a second seal carrier wall, and a sliding member as well as a connecting element, wherein the first seal carrier wall and the seal carrier are formed in a one-piece manner with each other, and wherein the seal carrier walls are multipiece in construction relative to each other, and the second seal carrier wall is fastened to the first seal carrier wall and the seal carrier by way of the connecting element, wherein the sliding member holds the seal carrier walls spaced apart from each other in such a manner that they bound axially an intervening space with each other.
1 . A module for a turbomachine, comprising:
a guide vane arrangement;
a seal carrier, which is arranged radially inside an inner platform of the guide vane arrangement;
seal carrier walls, including a first seal carrier wall having a wall surface and a second seal carrier wall; and
a sliding member as well as a connecting element;
wherein the first seal carrier wall and the seal carrier are formed in a one-piece manner with each other;
wherein the seal carrier walls are multipiece in construction relative to each other and the second seal carrier wall is fastened by the connecting element to the first seal carrier wall and the seal carrier;
wherein the sliding member holds the seal carrier walls spaced from each other such that together they bound axially an intervening space, in which the guide vane arrangement engages with a radially inward extending guide pin;
wherein the second seal carrier wall is spaced apart from the wall surface of the first seal carrier wall directed in the axial direction and spaced apart from the seal carrier;
wherein the first seal carrier wall and the second seal carrier wall form a contact-free labyrinth seal with each other.
2 . The module according to claim 1 , wherein the second seal carrier wall and the seal carrier form a contact-free labyrinth seal with each other.
3 . The module according to claim 1 , wherein the second seal carrier wall comprises an axial segment protruding in the axial direction with respect to the first seal carrier wall for the formation of the contact-free labyrinth seal.
4 . The module according to claim 1 , wherein at least one of the seal carrier walls, as viewed in an axial section, is formed with a step for the formation of the contact-free labyrinth seal.
5 . The module according to claim 1 , wherein the seal carrier is positioned exclusively by the first seal carrier wall, and is otherwise free of contact radially outward with further components and/or comprises no further radially outward protruding segments.
6 . The module according to claim 1 , wherein, in relation to a throughflow of the module, the first seal carrier wall is arranged upstream and the second seal carrier wall is arranged downstream.
7 . The module according to claim 1 , wherein the sliding member is multipiece in construction with respect to the seal carrier walls, and the connecting element passes through the sliding member.
8 . The module according to claim 1 , wherein the first seal carrier wall is formed monolithically with the seal carrier and forming a T shape with the seal carrier in cross section.
9 . A turbine for a turbomachine formed with the module according to claim 1 .