低压轴流风机是一种使用量大,应用面广的风机产品,国内生产和仿制这类风机的大、小厂家很多,产品系列也不少,如30K4系列,T35、T40系列、FZ 系列,K 系列等等保证这些风机在各用户现场能正常而高效地运行,是一项很有意义的工作.但是不少用户在选用这类风机时存在一些不合理的现象,主要原因是:这类风机的特点是低压大风量,在产品的全压特性曲线中,风机动压占有相当大的比重,而用户对风机动压的 Low-pressure axial flow fan is a kind of fan product with a large amount of usage and a wide range of applications. There are many large and small domestic manufacturers and imitations of such fans, and there are many product series, such as the 30K4 series, T35, T40 series, and FZ series. The K series and so on guarantee that these fans can run normally and efficiently at all user sites. This is a very meaningful job. However, many users have some unreasonable phenomena in selecting such fans, mainly because: The fan is characterized by low pressure and large air volume. In the full pressure characteristic curve of the product, the wind maneuver pressure occupies a considerable proportion, and the user has a pressure on the wind.