罗茨风机隔声罩大小需要按照电机型号大小进行配置，具体的隔声罩大小需要根据罗茨风机大概尺寸定做，有一定的生产周期，有采购需求的用户需要根据自己的实际工况来安排采购，以免影响工程进度。

The size of the sound insulation cover of Roots blower needs to be configured according to the model and size of the motor. The specific size of the sound insulation cover needs to be customized according to the approximate size of Roots blower, with a certain production cycle. Users with procurement needs need to arrange procurement according to their own actual working conditions, so as not to affect the project progress.

另外，罗茨风机隔声罩选择合适的材料和形状。其罩面需选择具有隔声能力的材料进行制作，罩面的形状应选择曲面形体，其刚度应该较大，同时也应利用隔音。隔声罩的设备要保持一定的距离，对罩壁宜轻薄，选用分层复合结构。

In addition, suitable materials and shapes shall be selected for the sound insulation cover of Roots blower. The cover surface shall be made of materials with sound insulation capacity. The shape of the cover surface shall be curved shape, its stiffness shall be large, and sound insulation shall also be used. The equipment of the sound insulation cover shall be kept at a certain distance, the cover wall shall be light and thin, and the layered composite structure shall be selected.

罗茨风机隔声罩内的所有焊缝应避免漏音，和地面接触部分应封闭，机器和隔音罩之间以及地面或机座之间应该有适当的减振措施。其表面也应该做吸音处理，同时贴上多孔或纤维状的吸音材料，吸音系数也不能太小。

All welds in the sound insulation cover of Roots blower shall avoid sound leakage, the part in contact with the ground shall be closed, and appropriate vibration reduction measures shall be taken between the machine and the sound insulation cover and between the ground or base. The surface shall also be treated with sound absorption, and porous or fibrous sound-absorbing materials shall be pasted at the same time, and the sound-absorbing coefficient shall not be too small.

除此之外，隔声罩的罩壳需采用钢板或铝板进行制作，罩壳隔声罩在设计时要把握一个标准就是要便于安装和检修，也能做成可拆卸的拼装结构，还要考虑音源设备的通风、散热等一些要求。

In addition, the enclosure of the sound insulation cover shall be made of steel plate or aluminum plate. A standard shall be grasped in the design of the enclosure sound insulation cover, that is, it shall be easy to install and repair, and it can also be made into a removable assembly structure. Some requirements such as ventilation and heat dissipation of sound source equipment shall also be considered.

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