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在我国七十年代建成的原油装卸码头中,曾广泛采用了防爆电动明杆楔式双闸板闸阀(以下简称为《电动闸阀》)。BZ942H——25系列即是这种《电动闸阀》,它是由阀门电动装置和阀门配套组装而成。但在操作这种《电动闸阀》时,有时因为行程控制或转矩限制机构不准确和失去控制,可导致电动机支架损坏、阀体破裂或阀杆弯曲等事故。在上述几个油港的使用中,就几乎都曾发生过,造成了
In the seventies of our country built crude oil loading and unloading docks, has been widely used in explosion-proof electric wedge bar gate valve (hereinafter referred to as “electric gate valve”). BZ942H - 25 series is the “electric gate valve”, which is assembled by the valve electric devices and valves. However, when operating this “electric gate valve”, it is sometimes the case that the stroke control or torque limiting mechanism is inaccurate and out of control, resulting in damage to the motor bracket, rupture of the valve body or bending of the valve stem. Almost all have taken place in the use of these oil ports and have been caused