在实验室环境研究轴流式通风机噪声的主动控制问题。
The initiative control of the noise producing by axial flow ventilator is investigated in experiment environment.
通风机空气动力噪声强度大是通风机噪声的主要部分，且不易控制。
The aerodynamic noise strength of the centrifugal blower is bigger, and it is the main block in the centrifugal blower noise, and don't easy to control.
该文介绍了声强法的原理和通风机噪声的声强测量方法，有一定实际应用价值。
This paper introduces the principles of sound intensity method and the application of the method to measure the noise of the fan.
阐述了局部通风机噪声的分类，产生这些噪声的原因，以及综合控制、减小这些噪声的方法。
The fan-noise is classified according to the noisy source, some of the schemes of noise integration control and reduction are puts forward in this paper.
分析了中央空调组合机组内离心通风机噪声产生的机理。介绍了几种降噪措施。实际应用中取得良好效果。
The mechanism of noise generation of fan for center air-conditioner is analyzed. A few measures of noise reducing is introduced. Good result is obtained in practical use.
提供了一种确定低噪声离心通风机蜗壳结构的方法。
A method to determine low noise fan volute structure is provided.
就矿井通风系统(主要针对通风机、电动机)噪声产生的机理进行了较深入的研究分析，并提出其噪声控制的主要措施与途径。
The mechanisms of the noise generated in mine ventilation system, mainly in ventilators and electric motors, are analyzed in detail main measures and ways of noise controlling are put forward.
本文介绍一种对通风机房振动、噪声进行治理的方法，结果表明这种方法可使噪声明显降低。
A method to reduce the vibration and noise of centrifugal ventilator room is introduced in this paper.
KT系列离心通风机具有体积小、重量轻、噪声低，效率高、安装方便等特点，为国家重点新产品。
KT series fans is a state key new product with advantages of compact size, light weight, low noise high efficiency and easy installation.
提出 对旋式局部通风机具有高效率、低噪声、高风压、大风量性能特性的说法是不符合实际的宣传。
The way that counter rotating local fan with the characteristics of high efficency, low noise, high pressure and large flow rate is not practical is put forward.
我公司除生产销售JTB系列罗茨风机外，同时还生产销售DT低噪声柜式离心风机、T35/BT35、T30轴流风机、CF多翼型离心通风机及DWT型轴流式屋顶通风机等。
In addition to JTB series Roots blower, our company also produces and sales low-noise DT tank centrifugal fan, T35/BT35, T30 axial fans, CF more airfoil centrifugal fan and axle roof ventilator.
我公司除生产销售JTB系列罗茨风机外，同时还生产销售DT低噪声柜式离心风机、T35/BT35、T30轴流风机、CF多翼型离心通风机及DWT型轴流式屋顶通风机等。
In addition to JTB series Roots blower, our company also produces and sales low-noise DT tank centrifugal fan, T35/BT35, T30 axial fans, CF more airfoil centrifugal fan and axle roof ventilator.
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