SU116919A1 - High power steam turbine - Google Patents

Description

This invention relates to steam turbines whose shells are made of non-metallic materials. A further increase in the power of steam condensation turbines leads to extremely large sizes of exhaust pipes and condensers, a large amount of metal consumption, the need to make them from individual parts and significant structural complications. In addition, for high-power turbines (500,000-800,000 kW, it is difficult to make from metal exhaust pipes and capacitor casing.

A distinctive feature of the high power steam turbine described below is as follows:

The bottom half of the exhaust pipe and the condenser body Biii are filled with reinforced concrete as a whole with the foundation of the turbine in which parts and components of the capacitor are housed, which are bonded to the concrete embedded in the concrete. part m

The inner surfaces of the exhaust manifold and the turbine casing are covered with thin steel sheets welded along the joints and forming a continuous shell welded to the fittings of the manifold and turbine foundation.

In the exhaust pipe, where significant steam temperatures of steam are possible, a system of pipes embedded in concrete was used to cool the exhaust pipe.

Such an embodiment of the steam turbine saves metal and labor costs when performing steam turbines of very large pugs in one unit, and also protects the concrete from destruction.

FIG. Figure 1 shows a longitudinal section of medium and low pressure cylinders of a two-shaft high-power turbine; in fig. 2 is a top view with a partial section through the middle and low pressure pillows of this turbine.

The turbine contains a cylinder / medium pressure, from which steam from two receivers 2 is directed to two low pressure cylinders 3, from where it then enters condenser 4. Cylinder bodies 5, bearing supports 6 and tube plates 7 are attached to embedded parts 8 and another cast in concrete 9.

Subject invention

Claims (3)

1. A high-power steam turbine in which the exhaust pipe and the condenser body are made of non-metal, characterized in that, in order to simplify the design, metal saving and labor costs in the manufacture, the lower half of the exhaust pipe and the condenser body are made of reinforced concrete as one piece foundation, in the openings of which are placed parts and units of the condenser, fastened with embedded parts poured into concrete. 2. Turbine according to claim 1, characterized in that, in order to protect the concrete from destruction, the inner surfaces of the exhaust manifold and turbine casing are covered with thin steel sheets welded along the joints and forming a continuous shell welded to the fittings of the turbine base and foundation. 3. In the turbine on the PP. 1 and 2 use a pipe system embedded in concrete to cool the exhaust manifold.