Check valve for low-concentration gas pipeline

• Main Authors: LIU JIAWEN, LYU XUFENG, WAN YUTING
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model belongs to the field of gas conveying, and particularly discloses a low-concentration gas pipeline check valve which comprises an obliquely-arranged check valve frame, a plurality of sets of conveying square holes are horizontally formed in the outer surface of one side of the check valve frame in a penetrating mode, the outer surface of one side of the check valve frame extends to form a fixing base, and the fixing base is located above the conveying square holes. A connecting shaft is embedded in the end of the fixing base, a check baffle is installed on the outer surface of one side of the check valve frame in an attached mode, the end of the connecting shaft is rotationally connected with the upper portion of the check baffle, the check baffle covers the conveying square hole, and the conveying square hole is located in the lower portion of the check baffle. The gas conveying safety can be improved, and meanwhile it can be guaranteed that the check baffle is fully blown open by gas. 本实用新