A fuel tank truck operation box stop valve for low-temperature liquefaction vehicle is connected with pipeline connection leaking stoppage elbow

• Main Authors: WU XINGHUA, YUAN YIWEN
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to a plugging elbow for connection of a stop valve and a pipeline of an operation box of a fuel tank truck for a low-temperature liquefaction vehicle. The pipe clamp comprises a pipe clamp upper cover and a pipe clamp lower cover, the pipe clamp upper cover and the pipe clamp lower cover are mutually matched and connected in an embracing manner, and a cavity for accommodating the stop valve and connecting the pipeline elbow is formed inside; a leakage-stopping sealing groove and a leakage-stopping sealing embedded block which are nested in a matched mode are arranged between the opposite abutting faces of the pipe clamp upper cover and the pipe clamp lower cover and on the inner side and the outer side of the cavity respectively, a sealing rubber mat is arranged between the leakage-stopping sealing groove and the leakage-stopping sealing embedded block, a glue injection hole communicated with the cavity is formed in the pipe clamp upper cover, and a glue injection valve is installed