Title:
SYSTEM AND METHOD FOR MONITORING ATMOSPHERE IN DUAL SAMPLE LOOP TYPE USING SENSOR AND GAS CHROMATOGRAPHY
Document Type and Number:
WIPO Patent Application WO/2021/071005
Kind Code:
A1
Abstract:
The present invention comprises: a first suction unit for suctioning an atmospheric gas through a sample line by means of a first vacuum pump; a sensor room installed on the sample line, multiple sensors being arranged in the sensor room so as to measure multiple materials contained in the atmospheric gas suctioned through the sample line, respectively; a branch line branching off from the front end of the sensor room on the sample line, an opening/closing valve being installed on the branch line; and a GC analysis unit for performing gas chromatography regarding the atmospheric gas supplied through the branch line as a result of opening the opening/closing valve. The GC analysis unit comprises: a dual sample loop comprising first and second sample loops to be filled with the atmospheric gas supplied through the branch line, respectively; a second vacuum pump for providing suction power through the suction line such that the dual sample loop is filled with the atmospheric gas from the branch line; a carrier gas supply line for supplying a carrier gas to the dual sample loop; a GC column for receiving an analysis target substance together with the carrier gas from the dual sample loop through an analysis line and separating the analysis target substance; a GC detector for measuring the analysis target substance separated by the GC column; and a switching unit for switching between a first state in which one of the first and second sample loops is connected to the branch line and the suction line such that same is filled with the atmospheric gas and a second state in which the other of the first and second sample loops is connected to the carrier gas supply line and the analysis line such that the filling atmospheric gas is supplied to the GC column together with the carrier gas, the switching unit being configured such that each of the first and second sample loops can selectively switch to and perform each of the first and second states.
Inventors:
SONG HEENAM (KR)
HONG SEUNGKI (KR)
JIN HYUNJIN (KR)
HONG SEUNGKI (KR)
JIN HYUNJIN (KR)
Application Number:
PCT/KR2019/014320
Publication Date:
April 15, 2021
Filing Date:
October 29, 2019
Export Citation:
Assignee:
ACEN CO LTD (KR)
International Classes:
G01N33/00; G01N1/22; G01N30/02
Foreign References:
| KR101755538B1 | 2017-07-20 | |||
| JP3422577B2 | 2003-06-30 | |||
| KR20150047097A | 2015-05-04 | |||
| KR20170092723A | 2017-08-14 | |||
| KR101802186B1 | 2017-11-29 |
Attorney, Agent or Firm:
KIM, Junghyun (KR)
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