通风机

The ventilation system within the encloser is an induced draft system.

为了适应燃气轮机的快装和抑制噪声的需要，燃机和燃机本体燃烧模块装在燃机罩壳内，在燃机罩壳左右侧面下端靠近零米处，各开有2个进风口，在左侧燃机本体燃烧模块部位罩壳靠近4.5米层处开有1个进风口，进风口为百叶窗式，设置消声器和进风挡板，在罩壳顶侧面开有排气口，通过消声器和挡板，进入罩壳通风装置，该装置设有3×50%的通风机，以排出燃机罩壳内的热量，在通风机的进出口设有消声器。

Based on the CAD software UG, the models of centrifugal fans with ruled-surface impeller versus with enveloping surface impeller are developed.

首先本文采用CAD软件UG对直纹面叶轮离心通风机和包络面叶轮离心通风机进行了整体风机三维流场建模和单个叶轮通道的流场建模。

By using the CFD software FLUENT, the inner-flow field of centrifugal fans with ruled-surface impeller versus with enveloping surface impeller has been simulated. The static pressure distribution, the dynamic pressure distribution, the total pressure distribution, the turbulent intensity and the speed vector of the two kinds of centrifugal fans are then analyzed and compared. From the calculating results, we found that the pressure distribution, the speed vector and other parameters of the two kinds of centrifugal fans are basically same. This implies that the tool-path generating arithmetic for the machining of the impeller can meet the aerodynamic requirements of the centrifugal fan. Furthermore the method can provide proof for designing department to establish sound manufacturing tolerance for impeller.

最后采用CFD软件FLUENT，利用标准k-ε湍流模型，采用分离隐式求解器，分别对直纹面叶轮离心通风机和包络面叶轮离心通风机整体风机内部三维流场和单个通道流场进行了数值模拟计算，在计算结果的后处理中，对相同坐标值处的静压力、动压力、湍流强度和速度矢量等参数进行了分析与比较，结果表明：在相同的计算参数条件下所得到直纹面叶轮离心通风机和包络面叶轮离心通风机内部流场差别不大，从而揭示所采用的叶轮数控加工的刀位规划方法的规划误差对流体机械动力性能的影响不大，这也为设计部门制定合理的叶轮加工公差提供了依据。

The method of establishing automatic collection and analysis system of performance parameters of fanner has been introduced,and the software and hardware used to test the fanner's performance automatically has been designed.

介绍一种构建通风机性能参数自动采集与分析系统的方法，并设计了通风机性能自动测试系统的硬件与软件。

Basing on combining all actual monitor means of fanner with advanced testing technique, the project succeeds in computer monitor system of the fanner's performance.

本课题研究的通风机运行工况微机监测系统，是在基于现行的各种通风机监测方法，并结合先进的测试技术而研制成功的。

In order to avoid gas accidents and implement modern managing mode from accident investigation to accident prevention, it is important to develop a monitoring and control system for multi-local fans, which make subaerial manager know the fault information and operation parameters of multi-local fans timely, exactly and roundly.

为了使地面管理人员及时、正确、全面地掌握多局部通风机系统的工作状态、工作参数、故障状态和故障参数，迅速发现问题采取预防和修正措施，以遏制瓦斯事故的发生，实现变"事后处理"为"事前预防"的管理要求，对多局部通风机集控系统进行监测监控就显得尤为重要，它已逐渐成为保证煤矿安全生产、提高经济效益的重要措施之一。

The working principle of the ventilator is presented and increases the method of the ventilator life.

介绍了煤矿通风机的工作原理及提高使用通风机寿命的方法。

Is the professional production of fan manufacturers, are: gas compression centrifugal blowers; boiler drum with centrifugal fan; generally low, medium, high-grade centrifugal fan, high-temperature preservation centrifugal fan; coal centrifugal ventilation ; Row chemical dust centrifugal fan; general Axial Fan; mining and energy-saving Axial Fan coal mine blast by axial fans.

禹州市鸿华机械制造有限公司是风机生产的专业厂家，主要有：煤气加压离心鼓风机；锅炉离心鼓引风机；一般低、中、高档离心通风机；高温防腐离心通风机；煤炭离心通风机；排尘化工用离心通风机；一般轴流通风机；矿用节能轴流通风机及煤矿防爆用轴流风机。

Series of anti-corrosion Explosion-proof fans, exhaust gas treatment tower at home and abroad to introduce advanced technology, manufacturing, stainless steel fan, glass steel series: centrifugal fan, axial fan, roof fan, FT30 Axial fan, FRP fan horn, exhaust treatment tower.

系列防腐防爆风机、废气处理塔引进国内外先进技术制造，不锈钢通风机，玻璃钢系列：离心通风机、轴流通风机、屋顶通风机、FT30轴流风机、玻璃钢喇叭扇、废气处理塔等。

The performance curves of the experimental fan have been obtained and the flow field has been measured at the best efficiency point of each setting angle, in fixed plane downstream the rotor with a constant temperature hot-wire anemometer and a periodic multisampling and averaging technique by an on-line microcomputer.

对轴流式通风机在不同安装角时的流场变化进行了实验研究，得到了通风机的总性能曲线；并用固定在转子前、后测量平面的热线，测量了最高效率点处不同安装角时叶片通道进、出口轴向和切向速度的分布，从而能够清楚地了解到，通风机在安装角变化时，叶片通道进、出口截面流动结构的变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。