指出导致油罐抽瘪的主要原因是呼吸阀堵塞和冻结、油罐参数和工艺条件发生变化以及操作失误等。

It is pointed out that the plugging and freezing of breather valve, variation in parameters and operation conditions of oil tank and human factors result in the shrink of oil tank.

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卸压阀或通气阀使罐内油面上方的蒸汽保持微正压(油罐正在排空时除外)。

Relief valve or vent valves permit a small pressure to be maintained on the vapor over the oil in the tank (except when the tank is being emptied).

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本文对系统的吸排阀和锁阀组成的集成阀块、密闭油罐及直驱式系统的其它连接部件进行了结构设计。

This paper designs the compositive valves which components of fill oil valves and lock valves, closed oil tank and device connector.

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