羅茨鼓風機是一種轉(zhuǎn)動制冷壓縮機，2個葉型電機轉(zhuǎn)子在液壓缸中開展相對速度以縮小和傳送汽體，具備強制性導出排氣管的特點。在氣力輸送中，許多情形下都用到羅茨風機作為動力裝置，但也有些人對羅茨風機轉(zhuǎn)速和流量、壓力的影響不是很掌握。什么叫羅茨風機的流量，羅茨風機轉(zhuǎn)速與流量、壓力有什么關系，有關羅茨風機流量，還有哪些必須了解的呢。

　　一、什么叫羅茨風機的流量

　　羅茨風機的流量，即羅茨風機在單位時間內(nèi)運輸氣體的體積，一般用m3/min(立方米每分)表明流量企業(yè)。例如，在49kpa壓力下，100型羅茨風機轉(zhuǎn)速為1060轉(zhuǎn)時，流量為3.46m3/min，表明風機每分運輸氣體的體積為3.46立方米。

　　二、羅茨風機轉(zhuǎn)速與流量的關聯(lián)

　　羅茨風機轉(zhuǎn)速與流量正相關關聯(lián)，換句話說當風機壓力不會改變時，風機轉(zhuǎn)速越高，流量越大，風機轉(zhuǎn)速越低，流量越小。我們還用100型羅茨風機為例子，在49kpa壓力下，100型羅茨風機轉(zhuǎn)速為1460轉(zhuǎn)時，流量為5.56m3/min;轉(zhuǎn)速提高到1780轉(zhuǎn)時，流量為7.25m3/min;轉(zhuǎn)速減少到1060轉(zhuǎn)時，流量為3.46m3/min。

　　那樣，那么問題來了，有些人會問，可以用變頻電動機調(diào)節(jié)羅茨風機的流量嗎?當羅茨風機用電機驅(qū)動器時，羅茨風機的轉(zhuǎn)速不定時，相對應的轉(zhuǎn)動軸輸出功率也會產(chǎn)生變化，會直接影響到羅茨風機的流量，因此，變頻電動機能夠用以調(diào)節(jié)羅茨風機的流量。

　　三、羅茨風機轉(zhuǎn)速、流量和壓力的關聯(lián)

　　羅茨風機的壓力是響應式的，系統(tǒng)軟件的變化危害壓力的尺寸，系統(tǒng)軟件更改則壓力更改?？墒?，風機轉(zhuǎn)速的變化不容易因造成壓力的變化，即：不管風機轉(zhuǎn)速怎么改變，都可以維持風機壓力不會改變。換個角度來看，當風機壓力變化時，流量變化不大，即，羅茨風機流量不容易因壓力變化而變化許多。依據(jù)之上特點，大家要是要想調(diào)節(jié)風機壓力，可以通過下列方法來更改。例如，更改進風口規(guī)格尺寸(規(guī)格大則降血壓，規(guī)格小者變壓);調(diào)節(jié)機器設備工作中運作空隙;在機器設備上組裝減壓閥。

　　關于羅茨風機轉(zhuǎn)速、羅茨風機流量、羅茨風機壓力三者相互關系臨時詳細介紹到這兒，如果您對于此事有興趣，能夠再次關注我們。

　　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.