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厂家建议选择离心风机的五个合理方式

2018-12-20 07:16:17 常州市星火铝艺制品有限公司 阅读

选择一款好的离心风机,最重要的前提要先了解你要选购的这台离心风机的工作环境,在排尘、防爆、防腐等不同的环境中作业肯定是需要选择不同的风机的。此外,合理的选择离心风机除了满足流量与风压的要求以外,还要考虑风机高效运行的需求,这是选择风机的重要因素。风机性能是风机合理选型的依据,风机性能的表示方法不同,风机选型的方法也不同。建议你依据以下几个方式来选择风机

Choose a good centrifugal fan, the most important premise is to understand the centrifugal fan you want to buy the working environment, in the dust, explosion-proof, anti-corrosion and other different environments must be selected in different fans. In addition, reasonable selection of centrifugal fans in addition to meeting the flow and wind pressure requirements, but also consider the need for efficient operation of the fan, which is an important factor in selecting the fan. Fan performance is the basis for the rational selection of fan, fan performance is expressed in different ways, fan selection methods are also different. It is recommended that you choose fans according to the following ways.

1、依据风机的性能曲线选择风机。这是一种最基本也比较简单的方法。

1, choose the fan according to the performance curve of the fan. This is a basic and simple method.

2、利用风机性能表来选择风机,这种方法与利用水泵性能表选择水泵相同,虽然简单方便,但是不能准确地确定风机装置工况。

2. Use the fan performance table to select the fan. This method is the same as using the pump performance table to select the pump. Although it is simple and convenient, it can not accurately determine the working condition of the fan device.

3、利用风机的性能选择曲线选择风机这是风机选择中最常用的一种方法。选择曲线是把同一相似系列,不同叶轮外径 的每一台风机的全压,功率,转速与流量的关系,在对数坐标图上所标绘的一系列线族

3, choose the fan using the performance curve of the fan, which is the most commonly used method of fan selection. Selection curves are a series of lines drawn on logarithmic coordinate maps that relate the total pressure, power, rotational speed and flow rate of each fan of the same series and different impeller diameters.

4、利用风机无量纲性能曲线选择风机风机无量纲性能曲线是表示各种型式,不同机号的系列风机的无量纲性能参数。为了缩小选择的范围,先选定风机的转速。计算风机的比转数,再由值查找离心风机的无量纲曲线,找出与计算比转数最为接近并且本身效率又较高的风机作为选定的风机型式。

4. Using dimensionless performance curve of fan to select dimensionless performance curve of fan is dimensionless performance parameter of series fans of different types and sizes. In order to narrow the scope of the selection, the speed of the fan is selected first. The specific speed of the fan is calculated, and then the dimensionless curve of the centrifugal fan is searched by the value. The fan with the closest specific speed and higher efficiency is found as the selected fan type.

5、根据所选风机的性能曲线和管路性能曲线,考虑系统管路布置方式和风机运行方式,图解装置运行工况和风机运行参数。如果需要运行工况调节的,应根据采用的调节方法图解调节工况,确定相应的调节工况参数。对于可采用多种方法调节时,应进行不同方法的经济性分析,以确定最合理的调节方法。

5. According to the performance curve and pipeline performance curve of the selected fan, the system pipeline layout and fan operation mode are considered, and the operating conditions of the device and fan operation parameters are illustrated. If it is necessary to adjust the operating conditions, the corresponding operating parameters should be determined by demodulating the throttle conditions according to the adopted adjusting method diagram. When adjusting by various methods, the economic analysis of different methods should be carried out to determine the most reasonable adjustment method.
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