Sampling device and gas curtain guide

US10151671B2 · kind B2 · utility

Assignee

• NUCTECH COMPANY LIMITED · CN

Inventors

• Qingjun Zhang · Beijing, CN
• Yuanjing Li · Beijing, CN
• Zhiqiang Chen · Beijing, CN
• Huishao He · Beijing, CN
• Qiufeng Ma · Beijing, CN
• Ziran Zhao · Beijing, CN
• Yinong Liu · Beijing, CN
• Yaohong Liu · Beijing, CN
• Weiping Zhu · Beijing, CN
• Xiang Zou · Beijing, CN
• Jianping Chang · Beijing, CN

Key dates

• Filing date: Aug 16, 2016
• Grant date: Dec 11, 2018
• Expiry date: Dec 9, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N30/30
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sampling device and a gas curtain guide are disclosed. In one aspect, the sampling device includes a chamber body. The chamber body includes a sample inlet, located at a first end of the chamber body, configured for suction of a sample. The chamber body further includes a sample outlet, located adjacent to a second end opposite to the first end of the chamber body, configured to discharge the sample. The chamber body further includes a gas inflation inlet, in a wall of the chamber body, configured to introduce a swirl gas flow into the chamber body. The chamber body further includes a gas exhaust opening configured to discharge gas so as to, together with the gas inflation inlet, generate a tornado type gas flow in the chamber body, which moves spirally from the first end to the second end of the chamber body.