罗茨鼓风机是一种转动制冷压缩机，2个叶型电机转子在液压缸中开展相对速度以缩小和传送汽体，具备强制性导出排气管的特点。在气力输送中，许多情形下都用到罗茨风机作为动力装置，但也有些人对罗茨风机转速和流量、压力的影响不是很掌握。什么叫罗茨风机的流量，罗茨风机转速与流量、压力有什么关系，有关罗茨风机流量，还有哪些必须了解的呢。

　　一、什么叫罗茨风机的流量

　　罗茨风机的流量，即罗茨风机在单位时间内运输气体的体积，一般用m3/min(立方米每分)表明流量企业。例如，在49kpa压力下，100型罗茨风机转速为1060转时，流量为3.46m3/min，表明风机每分运输气体的体积为3.46立方米。

　　二、罗茨风机转速与流量的关联

　　罗茨风机转速与流量正相关关联，换句话说当风机压力不会改变时，风机转速越高，流量越大，风机转速越低，流量越小。我们还用100型罗茨风机为例子，在49kpa压力下，100型罗茨风机转速为1460转时，流量为5.56m3/min;转速提高到1780转时，流量为7.25m3/min;转速减少到1060转时，流量为3.46m3/min。

　　那样，那么问题来了，有些人会问，可以用变频电动机调节罗茨风机的流量吗?当罗茨风机用电机驱动器时，罗茨风机的转速不定时，相对应的转动轴输出功率也会产生变化，会直接影响到罗茨风机的流量，因此，变频电动机能够用以调节罗茨风机的流量。

　　三、罗茨风机转速、流量和压力的关联

　　罗茨风机的压力是响应式的，系统软件的变化危害压力的尺寸，系统软件更改则压力更改。可是，风机转速的变化不容易因造成压力的变化，即：不管风机转速怎么改变，都可以维持风机压力不会改变。换个角度来看，当风机压力变化时，流量变化不大，即，罗茨风机流量不容易因压力变化而变化许多。依据之上特点，大家要是要想调节风机压力，可以通过下列方法来更改。例如，更改进风口规格尺寸(规格大则降血压，规格小者变压);调节机器设备工作中运作空隙;在机器设备上组装减压阀。

　　关于罗茨风机转速、罗茨风机流量、罗茨风机压力三者相互关系临时详细介绍到这儿，如果您对于此事有兴趣，能够再次关注我们。

　　Roots blower is a kind of rotary refrigeration compressor. The two blade motor rotors develop relative speed in the hydraulic cylinder to reduce and transfer steam. It has the characteristics of mandatory export of exhaust pipe. In pneumatic conveying, roots blower is used as the power unit in many cases, but some people are not very familiar with the influence of Roots blower speed, flow and pressure. What is the flow of Roots blower? What is the relationship between the speed of Roots blower and the flow and pressure? What else must we know about the flow of Roots blower.

　　Simply analyze the relationship between the rotating speed of Roots blower and the flow and pressure

　　1、 What is the flow of Roots blower

　　The flow of Roots blower, that is, the volume of gas transported by roots blower in unit time, is generally expressed in m3/min (cubic meter per minute). For example, under the pressure of 49kpa, when the speed of 100 roots blower is 1060 rpm, the flow is 3.46m3/min, indicating that the volume of gas transported by the blower per minute is 3.46m3.

　　2、 Correlation between speed and flow of Roots blower

　　There is a positive correlation between Roots blower speed and flow. In other words, when the blower pressure does not change, the higher the blower speed, the greater the flow, and the lower the blower speed, the smaller the flow. We also take 100 roots blower as an example. Under the pressure of 49kpa, when the speed of 100 roots blower is 1460 rpm, the flow is 5.56m3/min; When the speed is increased to 1780 rpm, the flow is 7.25m3/min; When the speed is reduced to 1060 rpm, the flow is 3.46m3/min.

　　In that case, the question comes. Some people will ask, can you use the variable frequency motor to adjust the flow of Roots blower? When the roots blower uses a motor driver, the output power of the corresponding rotating shaft will also change when the speed of the roots blower is not fixed, which will directly affect the flow of the roots blower. Therefore, the variable frequency motor can be used to regulate the flow of the roots blower.

　　3、 Correlation of speed, flow and pressure of Roots blower

　　The pressure of Roots blower is responsive. The change of system software endangers the size of pressure, and the change of system software changes the pressure. However, the change of fan speed is not easy to cause pressure change, that is, no matter how the fan speed changes, the fan pressure can be maintained unchanged. From another point of view, when the fan pressure changes, the flow changes little, that is, the Roots fan flow is not easy to change a lot due to the pressure change. According to the above characteristics, if you want to adjust the fan pressure, you can change it by the following methods. For example, change the size of the air inlet (if the size is large, the blood pressure will be reduced, and if the size is small, the pressure will be changed); Adjust the operating clearance of machinery and equipment during operation; Assemble the pressure reducing valve on the machine.

　　The relationship among the speed, flow and pressure of Roots blower is temporarily detailed here. If you are interested in this matter, you can pay attention to us again.