Extending control device of liquefied natural gas valve

• Main Authors: DAI LIANG, SHEN ZHAOBIN, MANDELA ZHAHAN, CHENG ZHAOXIN, XU DONG, LIU QINGGUO, XIE YONGCHUN, LYU WENBIN, YANG HAIJUN
• Format: Patent
• Language: English
• Published: 01.07.2015
• 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 provides an extending control device of a liquefied natural gas valve. The extending control device is provided with a support, a transmission shaft arranged on the support, a transmission compass arranged on one end of the transmission shaft and a control hand wheel arranged on the other end of the transmission shaft, wherein the transmission compass is connected with the controlled valve hand wheel, so as to finish the transmission and the operating position transfer, the transmission shaft is provided with a viewing port, and an indication screw rod arranged in the transmission shaft can be monitored by virtue of the viewing port; the lower end of the indication screw rod is connected with a valve shaft of the controlled valve, the upper end of the indication screw rod is connected with the top of the transmission shaft, so as to monitor the opening and closing states of the valve. A transmission position of the valve is transferred, and the opening and closing states of the valve are monitored, so that the problem that the liquefied natural gas valve collides with the adjacent technology facility in a limited space during a pipeline designing and construction process can be avoided, the design space and design difficulty are greatly saved, and the construction cost is greatly saved.