Title:
INTRINSICALLY SAFE AND EXPLOSION-PROOF PHOTOACOUSTIC SPECTROSCOPY DUST MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/184602
Kind Code:
A1
Abstract:
An intrinsically safe and explosion-proof photoacoustic spectroscopy dust measurement device, comprising an optical measurement dustproof chamber (2) and a power supply explosion-proof chamber (1) mounted on the optical measurement dustproof chamber (2); a first conversion circuit, a second conversion circuit and a third conversion circuit which are distributed independently from each other being arranged in the power supply explosion-proof chamber (1); an optical measurement plate (18) being mounted in the optical measurement dustproof chamber (2); and a resonant cavity (20) being mounted on the optical measurement plate (18). The three conversion circuits are used to respectively adapt to ground, underground and battery-electric locomotive working environments having three different voltages, thus achieving various measurement ways and a wider application range; for underground dusty gas, the optical measurement dustproof box (2) is simple to use and convenient to operate, and shows more rapid and precise measurement effects; and the power supply explosion-proof box (1) can prevent the risk of explosions caused by electric sparks generated due to sudden changes of output current, thereby ensuring safety and stability of a measurement environment and accuracy and reliability of measurement data.
Inventors:
JIN HUAWEI (CN)
WANG HAOWEI (CN)
FANG LEI (CN)
WANG HAOWEI (CN)
FANG LEI (CN)
Application Number:
PCT/CN2022/087119
Publication Date:
October 05, 2023
Filing Date:
April 15, 2022
Export Citation:
Assignee:
UNIV ANHUI SCI & TECHNOLOGY (CN)
International Classes:
H02M5/00; G01N15/00
Domestic Patent References:
| WO2014156749A1 | 2014-10-02 |
Foreign References:
| CN112730185A | 2021-04-30 | |||
| CN210225047U | 2020-03-31 | |||
| CN102684455A | 2012-09-19 | |||
| CN211292465U | 2020-08-18 | |||
| CN2831111Y | 2006-10-25 | |||
| CN202309537U | 2012-07-04 |
Other References:
CAO, ZHENXING ET AL.: "The Application of Photoacoustic Technique in the Automatic Flameproof in Mine", SAFETY IN COAL MINES, no. 09, 30 September 2010 (2010-09-30), XP009549116
Attorney, Agent or Firm:
HEFEI XINGDONG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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