Pneumatic oxygen flow regulating valve

• Main Authors: YING HUALIANG, YING HUAMING
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• 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 relates to a pneumatic oxygen flow regulating valve which comprises a valve body, a valve cover, a valve rod, a pneumatic actuator and a flow regulating assembly, the flow regulating assembly is composed of a sleeve and a valve plug, the sealing face of the outer circle face of the valve plug is matched with an inner hole of the sleeve in a movable sealing mode to form a sealing pair, and the oxygen flow is regulated through the moving height of the valve plug in the inner hole of the sleeve. In the opening state, the valve plug sealing face deviates from the fluid direction, direct washing of media to the valve plug sealing face is avoided, the flow adjusting precision is high, the sealing performance is good, and the service life of the product is long. The flow regulating valve is suitable for oxygen, nitrogen and natural gas pipelines. 本实用新型涉及一种气动氧气流量调节阀，包括阀体、阀盖、阀杆、气动执行器和流量调节组件，流量调节组件采用套筒和阀塞组成，利用阀塞外圆面的密封面与套筒内孔动密封配合组成密封副，由阀塞在套筒内孔的移动高度调节氧气流量，开启状态下，阀塞密封面背离流体方向，避免了介质对阀塞密封面直接冲刷，其流量调节精度高、密封性能好