Title:
STEAM CONVERSION VALVE
Document Type and Number:
Japanese Patent JP3406637
Kind Code:
B
Abstract:
PURPOSE: To manufacture a valve cylinder and a cooling water nozzle which is manufactured at a low cost and easy to effect maintenance and inspection and capable of being mounted on any portion of a mounting piping.
CONSTITUTION: A valve body 1 is partitioned into a high pressure high temperature chamber A and a pressure reduction and temperature reduction chamber B, and the pressure reduction temperature reduction chamber B is divided into a pressure reducing chamber B1 and a temperature reducing chamber B2. A high pressure high temperature steam flow inlet 1b and a pressure reduction temperature reduction steam flow outlet 1c are orientated on a straight line. A seat ring 2 and a gauge 3 of which a valve cylinder consists are mounted in the through-hole of a partition wall 1a. A number of ports 3a are formed in the gauge 3 and high pressure high temperature steam is ejected in a pressure reduction chamber B1 to reduce a pressure. A port 3a is orderly opened and closed by a plug 4 in the cage 3 to regulate an ejection amount of high pressure high temperature steam. One or a plurality of cooling water ejection nozzles 7 are attached to a nozzle base 6, a part of high pressure high temperature steam is introduced as auxiliary steam and ejected in the temperature reduction chamber B2.
Inventors:
Tanaka, Shigeru
Miyoshi, Tomoaki
Morita, Masatoshi
Miyoshi, Tomoaki
Morita, Masatoshi
Application Number:
JP1993000116635
Publication Date:
March 07, 2003
Filing Date:
April 21, 1993
Export Citation:
Assignee:
ABB GADELIUS KK
International Classes:
F16K49/00; F25J3/06; F16K49/00; F25J3/06; (IPC1-7): F16K49/00