Desuperheater nozzle
US6746001B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Feb 28, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7932
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An improved nozzle assembly for spraying cooling water into superheated steam flowing through a steam pipe of a steam desuperheater includes a nozzle housing, a nozzle barrel, a valve element, and at least one valve spring. A nozzle barrel disposed within the nozzle housing has flow passages in fluid communication with a barrel chamber. The barrel chamber minimizes a tendency for cooling water to enter the superheated steam in a streaming spray. The valve element is slidable within the nozzle barrel for regulating the flow of cooling water through the nozzle assembly. The valve spring biases the valve element against the forward end of the nozzle housing to initially seal the nozzle assembly in a closed position. A control valve increases the fluid pressure within the nozzle housing which in turn forces the valve head away from the nozzle housing, allowing for increased flow of cooling water into the superheated steam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.