Anti-gas efficiency increasing oil drain device

• Main Authors: JIANG CHUNMING, GUO PEIPEI, SUN QIN, BAO HUITAO, XU DA'NENG, ZHAO LIANCHEN, CHEN FEI, PENG CHAO, SUN ZHICHENG
• Format: Patent
• Language: English
• Published: 15.07.2015
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

An anti-gas efficiency increasing oil drain device comprises an oil drain device body and an upper joint. The oil drain device body is a hollow cylinder, the side face of the oil drain device body includes a side face upper portion, a side face middle portion and a side face lower portion, a recessed pin is arranged on the side face middle portion of the oil drain device body, a hollow screw is arranged in the pin, the pin is connected with the hollow screw in a threaded manner, external threads are arranged on the side face upper portion of the oil drain device body, the upper joint is a hollow cylinder, internal threads are arranged at the upper end and the lower end of the upper joint and connected with the external threads in a matched manner, a core tube is arranged inside the upper joint, and the inner wall of the core tube is machined into a spiral groove. The anti-gas efficiency increasing oil drain device spirally moves before crude oil enters a pump barrel, negative pressure degasification in the pump barrel is effectively reduced, airlock is avoided, the efficiency of a pump is remarkably improved, the anti-gas efficiency increasing oil drain device is simple in structure, convenient and practical, and working efficiency is improved.