| 摘要 |
FIELD: power industry.SUBSTANCE: invention relates to power engineering and can be used at design of separators-superheaters of turbine plants of nuclear power stations. Essence the invention is as follows: separator-superheater includes a vertical housing, in the lower part of which separation units are arranged, and superheaters of the first and the second stages are installed in series in the upper part as to the housing height. Each superheater has a tube bank connected to a vertical header provided with an end manhole. The manhole for the superheater of the first and the second stages are made in the lower and upper parts of the header respectively. Additional manholes are made in the housing in the opening zone in the separation unit and in the zone located above the superheater of the second stage. The manhole of the superheater of the first stage, which is made in the lower part of the header, allows transferring maintenance of the superheater of the first stage to the zone located under the superheaters and locating headers of the superheaters to each other as close as possible. However, maintenance of the superheater of the first stage requires access to its manhole; therefore, there is an additional manhole in the housing in the opening zone of the separation unit.EFFECT: invention allows reducing both dimensions of the housing as to height and metal consumption of the separator-superheater.2 cl, 4 dwg |
