答：罗茨风机是空压机吗？关于这个问题，我个人认为罗茨风机不是空压机，但在管道中增加储气罐后也可临时用作空压机使用！

　　空压机：通常用作气动机器或器具的动力源，一般气压较高，可达5kg/cm2--105kg/cm2，但风量较小;输出空气含有少量的油!

　　罗茨鼓风机：一般用作通风，输气;一般气压较低，风量较大。具有强制输气功能!输出的空气洁净无油!

　　罗茨鼓风机与空压机的区别如下：

　　1、一两者都能产生压力和流量，但用途却不一样;

　　2、罗茨鼓风机它的气压一般比较小(通常不会超过1kg/cm2)，但它的流量比较足，所以通常用在污水或水处理系统，有些生产线上也会用到中，主要用于搅拌吹气或吸气。

　　3、而空气压缩机它所产生的气压比较高(一般都在7kg/cm2左右)，主要用于驱动一些气动设备等等。

　　4、罗茨鼓风机的压力比较小而流量大。

　　5、空压机的压力可以大但流量小。 1Pa(帕斯卡): Pa=N/m^2 ，把G=9.8N/kg近似为10N/kg，那么1Kg相当于10N的压力;又1MPa=1000000Pa;

　　所以P=1Kg/cm^2=10N/0.0001*m^2=10^5*N/m^2=0.1MPa

　　罗茨鼓风机是用来送风的，罗茨鼓风机利用三个叶形转子在气缸内作相对运动来压缩和输送气体，也可用作真空泵。

　　空压机是“空气压缩机”的简称，是产生压缩空气用的，可以产生高压空气。

　　罗茨风机风压**一般是0.1MPa，而空压机一般是0.6MPa。

　　空气压缩机分为两大类，一类是容积型，一种是速度型。容积型又分为回复式和回转式两类;速度型则可分为轴流式、离心式和混流式三类。

　　罗茨鼓风机是属于容积型空气压缩机中的回转式类别，再往下分，就归属于转子式了。

　　工作原理：罗茨风机为容积式风机，输送的风量与转数成比例，三叶型叶轮每转动一次由 2 个叶轮进行 3 次吸、排气。风机2根轴上的叶轮与椭圆形壳体内孔面，叶轮端面和风机前后端盖之间及风机叶轮之间者始终保持微小的间隙，在同步齿轮的带动下风从风机进风口沿壳体内壁输送到排出的一侧。

　　罗茨鼓风机内腔不需要润滑油，结构简单，运转平稳，性能稳定。

　　用途：罗茨风机广泛应用于化工、冶炼、污水处理、水产养殖、轻工、矿山、塑料、食品、电力、造纸等，采用机械密封可输送煤气、石油天然气、氢气、一氧化碳、乙炔等;选用不锈钢叶轮可输送含水氯化氢、硫化氢等腐蚀性有毒气体。在氰化提金过程中浸出岗位所用的空压机能不能用罗茨风机来代替，这个问题其实也是比较复杂的，需要考虑的是使用状况(使用负荷，气象条件等)，需要注意的是罗茨风机本身属于高压风机！

　　Answer: is roots blower an air compressor? On this issue, I personally think roots blower is not an air compressor, but it can also be used as an air compressor temporarily after adding an air storage tank in the pipeline!

　　Air compressor: usually used as the power source of pneumatic machines or appliances. Generally, the air pressure is high, up to 5kg/cm2--105kg/cm2, but the air volume is small; The output air contains a small amount of oil!

　　Roots blower: generally used for ventilation and gas transmission; Generally, the air pressure is low and the air volume is large. With forced gas transmission function! The output air is clean and oil-free!

　　Is roots blower an air compressor

　　The difference between Roots blower and air compressor is as follows:

　　1. Both of them can produce pressure and flow, but their uses are different;

　　2. Roots blower usually has a small air pressure (usually not more than 1kg/cm2), but its flow is relatively sufficient, so it is usually used in sewage or water treatment systems and in some production lines, mainly for mixing, blowing or inhaling.

　　3. The air compressor produces high air pressure (generally about 7kg/cm2), which is mainly used to drive some pneumatic equipment, etc.

　　4. Roots blower has small pressure and large flow.

　　5. The pressure of the air compressor can be large but the flow is small. 1pA (Pascal): pa=n/m^2, g=9.8n/kg is approximately 10n/kg, then 1kg is equivalent to 10N pressure; 1mpa=1000000pa;

　　So p=1kg/cm^2=10n/0.0001*m^2=10^5*n/m^2=0.1mpa

　　Roots blower is used to supply air. Roots blower uses three blade rotors to make relative movement in the cylinder to compress and deliver gas. It can also be used as a vacuum pump.

　　Air compressor is the abbreviation of "air compressor", which is used to produce compressed air and can produce high-pressure air.

　　The maximum air pressure of Roots blower is generally 0.1MPa, while that of air compressor is generally 0.6MPa.

　　Air compressors are divided into two categories, one is volume type, and the other is speed type. Volume type can be divided into two types: recovery type and rotary type; Speed type can be divided into axial flow type, centrifugal type and mixed flow type.

　　Roots blower belongs to the rotary type in the positive displacement air compressor. Further down, it belongs to the rotor type.

　　Working principle: Roots blower is a positive displacement blower, and the air volume conveyed is proportional to the number of revolutions. Each time the three blade impeller rotates, two impellers will conduct three times of suction and exhaust. There is always a small gap between the impeller on the two shafts of the fan and the hole surface in the elliptical shell, between the end face of the impeller and the front and rear end covers of the fan, and between the fan impellers. Driven by the synchronous gear, the wind is transmitted from the air inlet of the fan to the discharge side along the inner wall of the shell.

　　Roots blower has simple structure, stable operation and stable performance without lubricating oil.

　　Application: Roots blower is widely used in chemical industry, smelting, sewage treatment, aquaculture, light industry, mining, plastics, food, electric power, papermaking, etc. with mechanical seal, it can transport gas, oil and natural gas, hydrogen, carbon monoxide, acetylene, etc; Stainless steel impeller can be used to transport corrosive toxic gases such as aqueous hydrogen chloride and hydrogen sulfide. In the process of cyanidation gold extraction, whether the air compressor used in the leaching post can be replaced by roots blower is actually a complex problem. What needs to be considered is the service conditions (service load, meteorological conditions, etc.). What needs to be noted is that roots blower itself is a high-pressure blower!