Pneumatic control quick shut-off valve

• Main Authors: WANG CHENSHENG, DAI JING, WANG ZHANXING, RUAN MING, ZHOU SHIJUN, JI MINGGANG, RUAN RUOBING, GU JUNJIE, CHEN YE
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• 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 discloses a pneumatic control quick shut-off valve which comprises an axial flow type valve body, the axial flow type valve body comprises a shell, a valve rod, a valve element and a valve seat, a fuel gas channel is arranged in the shell, the valve element and the valve seat are arranged in the fuel gas channel, and the valve rod is arranged in the shell; the pneumatic actuator is connected with the valve rod and is used for driving the valve rod to move; and the synthesis controller is respectively connected with the axial flow type valve body and the pneumatic actuator and is used for reducing the pressure of a high-pressure power gas source of the axial flow type valve body to a low-pressure power gas source with a preset size and introducing the low-pressure power gas source into the pneumatic actuator. According to the utility model, the axial flow type valve body structure is adopted, so that the pressure difference between the two sides of the closing piece can be effectively reduced