Degas piping for pumps
AssigneeEastman Chemical Company
InventorsRobert T. Harris, Brent A. Tennant, William M. Lambert
Life of this patent
Estimating the term…
Abstract
A method and apparatus for separating entrained gases from a pumped fluid. A degas pipe having an increased inner dimension relative to surrounding process piping is provided to generate a stratified two-phase gas/liquid flow. A controlled release mechanism permits selective removal of gas from the degas pipe.
Claims29
An apparatus for removal of entrained gas from a fluid, said apparatus comprising:
- (a) a degassing enclosure for separating entrained gas from a liquid, the degassing enclosure comprises a degas pipe eccentrically coupled to a fluid conduit, whereby a longitudinal axis of said degas pipe is offset vertically above a longitudinal axis of the fluid conduit;
- and
- (b) a controlled release mechanism for selective removal of gas from said degassing enclosure to ambient, said controlled release mechanism comprising a flow control device for maintaining a pressure differential between an internal pressure within said degassing enclosure and an external pressure exterior of said degassing enclosure.
A pump system comprising:
- (a) a pump comprising a motor and an impeller;
- (b) a fluid conduit receiving a pumped fluid from said pump;
- and,
- (c) a degassing enclosure coupled to said fluid conduit for separating entrained gases from a liquid, wherein the separated gases are released to ambient, the degassing enclosure comprises a degas pipe eccentrically coupled to a fluid conduit, whereby a longitudinal axis of said degas pipe is offset vertically above a longitudinal axis of the fluid conduit.
A cooling fluid circuit for delivering cooling fluid to a canned motor pump, said cooling fluid circuit comprising:
- a fluid conduit having a first inner diameter,
- a degas enclosure having a degas pipe eccentrically coupled to said fluid conduit and having a second inner diameter larger than the first inner diameter, a longitudinal axis of said degas pipe is offset vertically above a longitudinal axis of the fluid conduit and,
- means for controlled release of gas from said degas pipe to ambient.
A method for removal of entrained gas from a fluid, said method comprising:
- (a) pumping the fluid to pressure;
- (b) transmitting the fluid through a fluid conduit;
- (c) separating entrained gas form the fluid in a degassing enclosure coupled to the fluid conduit, the degassing enclosure comprises a degas pipe eccentrically coupled to a fluid conduit, whereby a longitudinal axis of said degas pipe is offset vertically above a longitudinal axis of the fluid conduit;
- and,
- (d) venting separated gas from the degassing enclosure to ambient.
A pump system comprising:
- (a) a pump comprising a motor and an impeller, which pumps a process fluid and a cooling fluid, in which the process and cooling fluids are separated from each other;
- (b) a fluid conduit receiving the pumped cooling fluid from said pump;
- and,
- (c) a degassing enclosure coupled to said fluid conduit for degassing the cooling fluid to ambient, the degassing enclosure comprises a degas pipe eccentrically coupled to a fluid conduit, whereby a longitudinal axis of said degas pipe is offset vertically above as longitudinal axis of the fluid conduit.
Dependencies are inferred from the claim text.