Dimethyl carbonate sampling device

• Main Authors: LIU PENGFEI, SONG YANCHAO, SUN CHUANG, YASUKI, LIANG ZEXING, CHEN WEIZE, CAO HAIHUI, YANG LIANBAO, FAN YAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model relates to the field of dimethyl carbonate sampling, in particular to a dimethyl carbonate sampling device which comprises a sampling cup, a sampling tube and a sampling tube, the cup cover is detachably connected to the sampling cup and forms a sealed space with the sampling cup; the exhaust pipe is communicated with the upper half part of the sampling cup, and a gas one-way valve for evacuating the inside of the sampling cup is arranged on the exhaust pipe; one end of the sampling tube is communicated with the cup cover, the other end of the sampling tube is a sampling opening, the position of the sampling opening is lower than the bottom of the sampling cup, and a ball valve is arranged on the sampling tube. According to the dimethyl carbonate sampling device, the interior of the sampling cup is vacuumized, and dimethyl carbonate enters the sampling cup through the sampling pipe by controlling opening and closing of the ball valve, so that the sampling cup is prevented from being in conta