STEAM CONVERSION VALVE
Document Type and Number:
Japanese Patent JP3406637
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.
March 07, 2003
April 21, 1993
ABB GADELIUS KK
F16K49/00; F25J3/06; F16K49/00; F25J3/06; (IPC1-7): F16K49/00