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为解决噪声、振动问题 ,对 2 # 洞穴的控制装置进行了改造。用一个 6in工作控制阀替代了原先的 4in工作控制阀和 6in球阀 ,新阀门的特点在于增加了带弯曲槽的圆盘 ,整个系统的气体输送能力显著提高。
In order to solve the problem of noise and vibration, the control device of 2 # cave was modified. A 6in working control valve replaces the original 4in working control valve and 6in ball valve. The new valve features the addition of a curved grooved disc and significantly increased gas delivery throughout the system.