发明名称 |
Micro sampling valve for high pressure and temperature samples |
摘要 |
The present invention provides an apparatus and method for trapping and injecting a fluid sample (liquid or gas) at high temperature and pressure without any sample loss. Here, a sample is flowed into an aperture in the valve body and then into a sample chamber. The sample chamber is mounted in a slidable stem and once the sample is in the sample chamber, the stem is moved to a position to seal off the sample. Once the sample is trapped, the valve is moved to a chromatograph (while maintaining the sample at pressure and temperature), flushed with a carrier gas, and the stem is moved to open the sample chamber to the gas. This flushes the sample and moves it to the chromatograph.
|
申请公布号 |
US4726238(A) |
申请公布日期 |
1988.02.23 |
申请号 |
US19860929927 |
申请日期 |
1986.11.12 |
申请人 |
CHEVRON RESEARCH CORPORATION |
发明人 |
REESE, NORMAN A.;BERROTERAN, JACK |
分类号 |
G01N30/20;G01N30/22;(IPC1-7):G01N35/00 |
主分类号 |
G01N30/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|