动力式空压机分为透平式和喷射式空压机，离心式空压机属于透平式空压机组。在离心式空压机中，高速旋转的叶轮给予气体的离心力作用，以及在扩压通道中气体的扩压作用，使气体压力得到提高。今天小编就从离心式空压机的工作原理、优劣势、应用范围及发展趋势几方面来为大家介绍。   一、离心式空压机的工作原理。离心式空气空压机由叶轮带动气体高速旋转，产生离心力，由于气体在叶轮里中进行扩压流动，使气体通过叶轮后流速和压力提高，连续生产出压缩空气。离心式空气空压机属于速度式空压机，在用气负荷稳定时离心式空气空压机工作稳定、可靠。   二、离心式空压机的优势。   1、流量大、功率大、节能环保。透平机械流经叶轮的介质，是连续不断的，气缸容积较大，叶轮能够高速旋转，故透平机械的排气量和发生的功率大大增加。所以离心空压机排气均匀，无气流脉冲。   2、运转平稳，操作可靠，因此它运转率高，操作范围较广，节约成本。   3、运转周期长，易损件少、运动零件少、设计简洁，且制造精度低，制造费用相对低且可靠性高。易实现自动化和大型化。   4、结构紧凑、密封效果好，少泄漏，尺寸小，机组占地面积及重量都比同一气量的活塞式空压机小得多。   5、离心式空压机的压缩过程中可以做到绝对无油，不需要机内润滑，这对许多行业生产十分重要。   三、离心式空压机的缺点。目前离心式空压机还不适用于气量太小及压比过高的场所。其稳定工况区狭窄，气量调节虽比较方便，但经济性差。气流速度大，流道内的零部件有较大的摩擦损失。离心式空压机转速较高，有可能产生机械振动，在运行特性方面，会有喘振现象，对机器的危害极大。操作相对复杂，齿轮箱噪声大，设备技术含量高，维护费用较大。效率仍低于活塞式空压机。操作适应性差，气体性质对操作性能有较大影响。   四、适用范围。近年来，化工行业和大型化工厂陆续建立，使离心式空压机成为压缩和输送化工生产中各种气体的关键机器，占有及其重要地位
Power type air compressors are divided into turbine type and jet type air compressors, and centrifugal air compressors belong to turbine type air compressor units. In a centrifugal air compressor, the high-speed rotating impeller exerts centrifugal force on the gas, as well as the expansion effect of the gas in the expansion channel, which increases the gas pressure. Today, the editor will introduce to you the working principle, advantages and disadvantages, application scope, and development trend of centrifugal air compressors. 1、 The working principle of a centrifugal air compressor. The centrifugal air compressor is driven by the impeller to rotate the gas at high speed, generating centrifugal force. Due to the expansion flow of the gas in the impeller, the flow rate and pressure of the gas increase after passing through the impeller, continuously producing compressed air. Centrifugal air compressors belong to speed type air compressors, and they work stably and reliably when the gas load is stable. 2、 The advantages of centrifugal air compressors. 1. High flow rate, high power, energy-saving and environmentally friendly. The medium flowing through the impeller of a turbomachinery is continuous, and the cylinder volume is large. The impeller can rotate at high speed, so the exhaust volume and power generated by the turbomachinery are greatly increased. So the centrifugal air compressor exhausts uniformly without any airflow pulses. 2. Smooth operation and reliable operation, therefore it has a high operating rate, a wide operating range, and saves costs. 3. Long operating cycle, few vulnerable parts, few moving parts, simple design, low manufacturing accuracy, relatively low manufacturing cost, and high reliability. Easy to achieve automation and large-scale. 4. Compact structure, good sealing effect, less leakage, small size, and much smaller footprint and weight of the unit compared to piston type air compressors with the same air volume. 5. The compression process of centrifugal air compressors can achieve absolute oil-free operation without the need for internal lubrication, which is crucial for production in many industries. 3、 Disadvantages of centrifugal air compressors. At present, centrifugal air compressors are not suitable for places with low air volume and high pressure ratio. Its stable working condition zone is narrow, and although air volume regulation is relatively convenient, its economy is poor. The airflow speed is high, and the components inside the flow channel have significant friction losses. The centrifugal air compressor has a high speed and may generate mechanical vibration. In terms of operating characteristics, there may be surging, which poses great harm to the machine. The operation is relatively complex, the gearbox has high noise, the equipment has high technical content, and the maintenance cost is relatively high. The efficiency is still lower than that of piston air compressors. Poor operational adaptability, gas properties have a significant impact on operational performance. 4、 Scope of application. In recent years, the chemical industry and large chemical plants have been established one after another, making centrifugal air compressors a key machine for compressing and transporting various gases in chemical production, occupying an extremely important position