公开(公告)号：US20240175803A1

公开(公告)日：2024-05-30

申请号：US18432313

申请日：2024-02-05

Applicant: Anhui University of Science and Technology

Inventor： Huawei JIN ,  Xu WANG ,  Haowei WANG

IPC: G01N21/17 ,  G01N1/14 ,  G01N33/00

CPC classification number: G01N21/1702 ,  G01N1/14 ,  G01N33/0027 ,  G01N2021/1704 ,  G01N2201/06113 ,  G01N2201/0636

Abstract: Disclosed is a synchronous detection system for a trace nitrogen-oxygen compound based on photoacoustic spectrometry, including a NOx (Nitrogen Oxide) detection air channel, a dust detection air channel and a double-photoacoustic spectrometry detection mechanism which are mutually connected in parallel; the NOx detection air channel includes a background interference detection air pipe, a NO2 detection air pipe and a NO detection air pipe that are mutually connected in parallel, and a NOx photoacoustic detection cavity; and the dust detection air channel includes a dust detection air pipe and a dust photoacoustic detection cavity communicating with the dust detection air pipe.

公开(公告)号：US20240175361A1

公开(公告)日：2024-05-30

申请号：US18432330

申请日：2024-02-05

Applicant: Anhui University of Science and Technology

Inventor： Huawei JIN ,  Haitao JI ,  Fangzheng YAN

IPC: E21F11/00

CPC classification number: E21F11/00

Abstract: Disclosed is an underwater robot for a mine flooding rescue, including a starting unit configured to control the implementation of a whole rescue action; a drive unit connected with the starting unit and configured to provide a robot with power to move; and an execution unit connected with the drive unit and configured to salvage underwater life sources.

公开(公告)号：US20230314308A1

公开(公告)日：2023-10-05

申请号：US18147236

申请日：2022-12-28

Applicant: Anhui University of Science and Technology

Inventor： Huawei JIN ,  Fangzheng YAN ,  Lei FANG

IPC: G01N21/17 ,  G01N33/00 ,  G01N1/24

CPC classification number: G01N21/1702 ,  G01N33/0027 ,  G01N1/24 ,  G01N2201/06113 ,  G01N2021/1704

Abstract: A system for detecting a concentration of free SiO2 in coal dust includes a first sampling tube and a second sampling tube for sampling the coal dust, a three-way control valve communicated with the first sampling tube and the second sampling tube respectively, a photoacoustic spectrometry detection device communicated with the three-way control valve through a connecting pipeline, and a SiO2 reaction tube for reacting SiO2 in the coal dust; and the SiO2 reaction tube is disposed on the second sampling tube. In the present disclosure, a coal dust sampling line is convenient to change by disposing the three-way control valve, and the first sampling tube and the second sampling tube are respectively communicated with the photoacoustic spectrometry detection device, so as to perform a differential accurate detection of the reacted CO content, and to obtain the SiO2 content.