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.
研制开发了离心通风机的专用计算机辅助设计系统。
A special CAD system for the centrifugal type ventilator was developed.
论述了离心通风机叶轮进口相对涡流的产生及其变化规律。
Produce & Change low of relative vortex at impeller inlet of centrifugal fan are discussed.
用于排放、输送含尘气体的离心通风机，都是在高颗粒浓度环境下工作。
Centrifugal fans used for transporting gas containing kinds of dust work at high particle concentration.
针对离心通风机传动组的轴端密封经常漏油这一现象，提出了改进措施。
Improving measures are put forword against the phenomenon of shaft end seal of oil leakage of centrifugal fan driving unit.
采用主成分分析方法，提出了一种空调器多翼离心通风机性能的综合评定方法。
The method of main element analysis is used. A comprehensive evaluation method of performance for multi-blade centrifugal fan in air conditioner is given.
系统的设计功能本控制系统具有离心通风机组的启动、互锁和过热保护等功能。
System structure and control scheme system design features The control system of ventilation units with centrifugal activation of interlocking and over-temperature protection.
这些改进对完善现有的工程设计方法很重要，它也是离心通风机现代设计方法的一个重要组成部分。
The content of these improvements is very important to perfect the existing engineering design method and is a main part of the modern design method for centrifugal fans.
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.
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.
文中介绍了离心通风机的理论设计和相似设计原理，进行了离心通风机参数化CAD系统的结构设计与研究。
The principle of theory design and similar design are introduced in this article, and the study about the CAD parameter system for the centrifugal fan are made.
研究结果表明：通过优化有效降低了因二次流漩涡、风机蜗舌结构、尾流-射流和正冲角等造成的能量损失，提高了离心通风机性能。
The results show that the performance of optimized fan is improved by lowering the energy loss which caused by the secondary flow vortex, the volute tongue, the wake-jet and the angle of attack.
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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