Filling pipeline of LNG (Liquefied Natural Gas) filling machine

• Main Authors: CHEN WEIYIN, WANG GUOYUN, HU SHUSHENG, SUN PENG
• Format: Patent
• Language: Chinese; English
• Published: 21.02.2023
• Subjects: BLASTING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; STORING OF DISTRIBUTING GASES OR LIQUIDS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

The utility model provides a filling pipeline of an LNG (Liquefied Natural Gas) liquid adding machine. The filling pipeline comprises a pre-cooling pipeline and a filling pipeline, the precooling pipeline comprises a pipeline for connecting an outlet of an immersed pump in the immersed pump pool to a reflux inlet of the LNG storage tank, a first pressure sensor is arranged at the outlet of the immersed pump in the pipeline, and a first control valve and a third control valve are sequentially arranged in the LNG reflux direction; the filling pipeline comprises a pipeline body connecting an outlet of the immersed pump to the LNG vehicle bottle, the first pressure sensor and a first control valve are arranged in the pipeline body, the filling pipeline further comprises a flow meter, a second pressure sensor and a second control valve, the second pressure sensor is used for monitoring the pressure of the filling pipeline, and the outlet end of the second control valve is connected to the LNG vehicle bottle. Accor