Select the pneumatic conveying Roots blower with appropriate air volume and pressure

气力输送风机的风量和风压是风机选型过程中两个重要的基本参数。气力输送风机的压力取决于气力输送系统的压力，也要适当考虑系统内阻力及可能的管道损失，气力输送风机的压力还要保证气力输送系统出现小故障时也能操作。

Air volume and air pressure of pneumatic conveying fan are two important basic parameters in the process of fan selection. The pressure of the pneumatic conveying fan depends on the pressure of the pneumatic conveying system, and the resistance in the system and the possible pipeline loss should also be properly considered. The pressure of the pneumatic conveying fan should also ensure that the pneumatic conveying system can operate safely in case of a small fault.

由于四季气候条件的变化以及工艺操作本身的波动，使得所需的气力输送风机风量和风压也需相应变动，因此在选择气力输送罗茨鼓风机时，应尽量使风机的运行工况包含在风机特性曲线的有效使用区范围内。

Due to the change of climatic conditions in four seasons and the fluctuation of process operation itself, the required air volume and air pressure of the pneumatic conveying fan also need to change accordingly. Therefore, when selecting the pneumatic conveying roots blower, the operating conditions of the fan should be included in the effective use area of the fan characteristic curve as far as possible.

罗茨鼓风机的效率

Efficiency of roots blower

气力输送风机作为整个气力输送系统的动力来源，其效率的高低直接关系到整个输送设备的输送效率。风机的效率决定着气力输送风机正常运行的经济性，因此应尽可能选择额定效率高的风机，以使气力输送风机全年都能尽可能长时间的经济运行。

As the power source of the whole pneumatic conveying system, the efficiency of pneumatic conveying fan is directly related to the conveying efficiency of the whole conveying equipment. The efficiency of the fan determines the economy of the normal operation of the pneumatic conveying fan. Therefore, the fan with high rated efficiency should be selected as far as possible so that the pneumatic conveying fan can operate economically for as long as possible throughout the year.

尽可能选择满足高压操作能力的气力输送罗茨鼓风机

Try to select the pneumatic conveying roots blower that meets the high pressure operation capability

气力输送过程中，有时工况要求高压操作进行输送或者清理管道灰尘。高压操作要求气力输送罗茨鼓风机要有满足高压操作的压力，保证在高压操作下能向管道供应足够的风量。

In the process of pneumatic conveying, sometimes the working conditions require high-pressure operation for conveying or cleaning the dust in the pipeline. The high pressure operation requires that the pneumatic conveying roots blower should have the pressure to meet the high pressure operation and ensure that it can supply enough air volume to the pipeline under the high pressure operation.

我们在选择气力输送罗茨鼓风机时，要充分考虑现场工况环境所需的性能要求以及气力输送系统的整体设计，选择性能满足要求，性价比高的气力输送风机不仅可保障物料气力输送的正常进行，还能保证经济性，

When selecting the pneumatic conveying roots blower, we should fully consider the performance requirements required by the site working conditions and the overall design of the pneumatic conveying system, and select the pneumatic conveying fan with high performance and price ratio to meet the requirements, which can not only ensure the normal operation of the pneumatic conveying of materials, but also ensure the economy,

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