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二位式闸阀是我厂油罐区生产中最频繁的控制对象。操作人员每天要上罐区开关阀门数十次甚至一百次以上,这些手动阀门最大的是400毫米口径,开动一个阀往往需要二、三个人拿着大扳手才能打开。遇到大热天刮风下雪,下雨操作工更是辛苦,这样不但效果低,且浪费了不少人力。为了改变油罐区操作的落后面貌。我厂在66年开始,着手将这些手动闸阀改成气动阀。按照毛主席“独立自主、自力更
Two-position gate valve is the most frequent object of control in the production of tank farm in our factory. Operators every day on the tank valve switch dozens of times or even more than 100 times, the largest of these manual valve is 400 mm caliber, start a valve often requires two or three people to take a big wrench to open. Encountering a hot day windy snow, rainyman is more difficult, so that not only low efficiency, and a lot of waste of manpower. In order to change the backward operation of tank farm. I plant in 66 years, proceed to these manual valve into a pneumatic valve. According to Chairman Mao, “Independent, self-reliant.”