Steam isolation valve

Valves and valve actuation – Reciprocating valve – Piston

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

251118, 251123, F16K 100

Patent

active

055404154

ABSTRACT:
A steam isolation valve system for opening and closing a steam flow passage of a steam flow comprises a valve body, a valve disk accommodated in the valve body to be reciprocatingly movable for opening and closing the steam flow passage, and a drive mechanism for moving the valve disk along an axial direction of the valve body. The steam flow passage has a portion elliptical in section having a short axis in a direction of the reciprocating axis of the valve disk projected on a plane perpendicular to an axis of the steam flow passage. The steam flow passage has a throttling inlet passage which is deformed in shape from a circular tube portion having a diameter D on a steam upstream side to an elliptical tube portion having a long side diameter D and a short side diameter D cos.theta. (45.degree..ltoreq..theta..ltoreq.65.degree.) on a steam downstream side, an intermediate passage which has an elliptical shape of the same diameters as that of the elliptical tube portion of the inlet passage and to which is connected a tube in which the valve disk is reciprocated with an inclination .theta. with respect to the axis of the steam flow line, and enlarging outlet passage which is deformed in shape from an elliptical tube portion having the same diameter as that of the elliptical tube portion of the intermediate passage at a steam upstream side to a circular portion having a diameter D at a steam downstream side.

REFERENCES:
patent: 2685426 (1954-08-01), MacGregor
H. Richter, "Rohrhydraulik", p. 274, (1958), Germany.
A. H. Gibson, "Hydraulics and its Applications", pp. 87-89, (1919), London.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Steam isolation valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Steam isolation valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steam isolation valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1653396

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.