On-line instrument for measuring effective partial pressure of dissolved gases in a liquid
First Claim
1. An instrument for measuring on-line the effective partial pressure of dissolved gases in a liquid, said instrument comprising:
- (a) a housing having a flow chamber for connecting in flow communication with a flowing stream of liquid to be measured;
(b) an elongated member rotatably mounted to said housing and extending across said flow chamber for presenting different angles of attack to the stream of liquid flowing through said housing chamber, said member having a point which remains located at a center of the stream of liquid flowing through said housing chamber as the angle-of-attack of said member is changed relative to the stream of liquid;
(c) means coupled to said member for rotating and thereby changing the angle of attack of said member relative to the stream of liquid; and
(d) means coupled to said housing for identifying the occurrence of incipient cavitation bubbles at said point of said member.
1 Assignment
0 Petitions
Accused Products
Abstract
An instrument for measuring on-line the effective partial pressure of dissolved gases in a liquid includes a housing having a flow chamber for connecting in flow communication with a flowing stream of liquid to be measured, and a streamlined V-shaped wing rotatably mounted to the housing and extending across the flow chamber for presenting different angles of attack to the stream of liquid flowing through the housing chamber. The wing has an apex which remains located at a center of the stream of liquid flowing through the housing chamber as the angle-of-attack of the wing is changed relative to the stream of liquid. An actuating mechanism is coupled to the wing for rotating and thereby changing the angle of attack of the wing relative to the stream of liquid flow. A device, such as a viewing window or an acoustical detector, is coupled to the housing for use in identifying the occurrence of incipient cavitation bubbles at the apex of the wing.
-
Citations
22 Claims
-
1. An instrument for measuring on-line the effective partial pressure of dissolved gases in a liquid, said instrument comprising:
-
(a) a housing having a flow chamber for connecting in flow communication with a flowing stream of liquid to be measured; (b) an elongated member rotatably mounted to said housing and extending across said flow chamber for presenting different angles of attack to the stream of liquid flowing through said housing chamber, said member having a point which remains located at a center of the stream of liquid flowing through said housing chamber as the angle-of-attack of said member is changed relative to the stream of liquid; (c) means coupled to said member for rotating and thereby changing the angle of attack of said member relative to the stream of liquid; and (d) means coupled to said housing for identifying the occurrence of incipient cavitation bubbles at said point of said member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An instrument for measuring on-line the effective partial pressure of dissolved gases in a liquid, said instrument comprising:
-
(a) a housing having a flow chamber for connecting in flow communication with a flowing stream of liquid to be measured; (b) an elongated member rotatably mounted to said housing, said member including a V-shaped wing having an apex and extending across said flow chamber for presenting different angles of attack to the stream of liquid flowing through said housing chamber, said wing of said member having a point on said apex thereof which remains located at a center of the stream of liquid flowing through said housing chamber as the angle-of-attack of said wing is changed relative to the stream of liquid; (c) an adjustable mechanism coupled to said member for rotating and thereby changing the angle of attack of said wing of said member relative to the stream of liquid; and (d) a viewing window mounted in said housing for identifying the occurrence of incipient cavitation bubbles at said point of said wing. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
-
Specification