Hitachi, Ltd.

Hitachi Machinery and Engineering, Ltd.

Keizo Ishida

Hiroshi Satoh

Isao Okouchi

Katsumoto Otake

Kenkichi Izumi

Yasuo Fujitani

Takuya Sasaki

Yoshikuni Ohshima

Yoshio Sumiya

Shigeo Oda

Hideki Kon

Makoto Yanagihara

Toshihiko Kaneko

Tokunori Matsushima

Toyoyuki Mukaidani

An apparatus for collecting cleaning bodies in a tubular heat exchanger capable of collecting the cleaning bodies with a high collection efficiency against the temporary introduction of a large amount foreign matter such as falling tools in a cooling water system and against the deflected flow of the cooling water from the upstream side. A rectifying member rectifies or regulates the deflected flow of the cooling water from the upstream side whereby it is possible to collect the cleaning bodies without any adhesion and stagnation of the cleaning bodies in the cooling water on V-shaped collection lattices. It is also possible to trap a large article such as a falling tool between a guide member disposed downstream of the collection lattices and the collection lattices, and to introduce only the cleaning bodies into the guide member. Furthermore, the downstream port of a cleaning body discharge pipe opens toward the downstream side to thereby prevent the clogging of the port with the foreign matter or the like.

Apparatus for collecting cleaning bodies for tubular heat exchanger

A condenser for a steam turbine expels the oxygen-containing gas residing in the condensate passage in the hot well thereof by a scavenging steam. The oxygen-containing gas is expelled by the scavenging gas, which is introduced into the atmosphere in the condensate passage and arranged to flow counter to the condensate flow. The scavenging means includes a steam pipe attached in a vicinity of an outlet of the condensate passage in the hot well, and a valve device provided in the intermediate portion of the steam pipe.

Condenser

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Hitachi, Japan

Keizo Ishida