Steam pressure reducing and conditioning valve
AssigneeDresser, Inc.
InventorHiroyuki Higuchi
Life of this patent
Estimating the term…
Abstract
A steam pressure reducing and conditioning valve for passing a superheated steam S inflowing from a first port 1 through a pressure reducing section 2, and, supplying subcooled water mist W and discharging desuperheated and depressurized steam S2 from a second port 3, wherein a first nozzle 4 for supplying mist W is provided in proximity to the pressure reducing section 2. The nozzle 4 injects subcooled water mist in a planar pattern r perpendicular to the flow of depressurized steam S1. Said first nozzle 4 is disposed such that there is a predetermined distance L between the jet pattern r of moisture W injected from the nozzle and the pressure reducing section 2.
Claims17
A steam pressure reducing and conditioning valve for passing a superheated steam inflowing from a first port through a pressure reducing section, and supplying a mist of subcooled water and discharging cooled and decompressed vapor from a second port, wherein a nozzle for supplying said mist is provided in the proximity to said pressure reducing section, a flat nozzle injecting said mist in a planar pattern whereby the planar orientation is perpendicular to the direction of steam flows, and it is disposed a predetermined distance from said pressure reducing section.
A conditioning valve for desuperheating and depressurizing superheated steam, the valve comprising:
- a pressure reducing section for reducing the pressure of the steam;
- and
- a moisture jet section downstream of the pressure reducing section, wherein the moisture jet section comprises:
- one or more flat nozzles for injecting one or more respective planar patterns of water into a flow of the steam exiting the pressure reducing section.
A conditioning valve for desuperheating and depressuring superheated steam, the valve comprising:
- a pressure reducing section comprising:
- a plug having a small-hole section comprising:
- a cylindrical body having a bottom, a plurality of small holes scattered about the cylindrical body proximate the bottom, wherein steam exits the pressure section in rapid annular flow;
- and
- a moisture jet section downstream of the pressure reducing section, the moisture jet section comprising one or more flat nozzles for injecting one or more respective planar patterns of water into the flow of steam exiting the pressure reducing section.
A method of desuperheating and depressuring superheated steam, the method comprising:
- depressuring superheated steam;
- transforming the steam into rapid annular flow;
- and
- injecting one or more planar patterns of water into the rapid annular flow.
Dependencies are inferred from the claim text.