诱导风机系统在地下车库通风排烟使用

发布人：http://www.sftfgd.com   发布时间：2021-08-30 16:56:33

一、诱导风机系统的概述

1、 Overview of induction fan system

（一）诱导风机

（1） Induction fan

诱导风机又称射流风机、接力风机，其能够散发的风力其实很小，主要是通过搅匀、等方式，来对某个区域内的空气进行净化。诱导风机主要是借助高速射流诱导通风理念进行设计的，当多台诱导风机与送风风机、排风风机进行一定的组合，就形成了诱导风机系统。

Induction fan is also known as jet fan and relay fan. Its wind power is actually very small. It mainly purifies the air in a certain area through mixing and removal. The induced draft fan is mainly designed with the help of the concept of high-speed jet induced ventilation. When multiple induced draft fans are combined with supply fans and exhaust fans, the induced draft fan system is formed.

（二）工作原理

（2） Working principle

这种的新型风机系统，主要是借助多台诱导风机喷嘴射出的定向高速气流，在无风管的条件下，诱导室外的新鲜空气或经过处理的空气进入到预定的位置，从而室内形成良好的气流组织，达到便捷的通风排烟目标。

This advanced new fan system mainly uses the directional high-speed air flow emitted from the nozzles of multiple induction fans to induce the outdoor fresh air or treated air to enter the predetermined position without air duct, so as to form a good indoor air distribution and achieve the goal of convenient and efficient ventilation and smoke exhaust.

（三）系统设计

（3） System design

在进行诱导风机系统安装的过程中，回风口与障碍物要保持500mm以上的间距，喷嘴出风口15°下前方也不能有阻挡的物体，在允许的范围内应尽量减小设备的吊装高度，一般要求底部要与梁底或管线底处在一个水平线上。

During the installation of induction fan system, the distance between the return air outlet and obstacles shall be more than 500mm, and there shall be no blocking objects in front of the nozzle air outlet under 15 °. The hoisting height of the equipment shall be reduced as far as possible within the allowable range. Generally, the bottom shall be on a horizontal line with the beam bottom or pipe line bottom.

对于该系统的接力风速方面，由于现实中存在着各种因素的影响，如建筑物内存在的四面八方的自然风，要想使射流风速减小到一定数值，就需要另一股射流进行接力，经过相关计算和分析发现，保持射流速度1m/s，收到的效果。

For the relay wind speed of the system, due to the influence of various factors in reality, such as the natural wind in all directions in the building, in order to reduce the jet wind speed to a certain value, another jet needs to relay. Through relevant calculation and analysis, it is found that maintaining the jet Center speed of 1m / s has the best effect.

二、传统通风排烟方式的弊端

2、 Disadvantages of traditional ventilation and smoke exhaust

在以前进行通风排烟时，系统的风管规模很大，需要占用很大空间，而且建设及安装费用都很高昂，更主要的是难以避免风管与电缆桥架、消防喷淋管道等其他管线的交叉问题。

In the previous ventilation and smoke exhaust, the air duct of the system has a large scale, needs to occupy a large space, and the construction and installation costs are very high. The most important thing is that it is difficult to avoid the intersection between the air duct and other pipelines such as cable tray and fire sprinkler pipeline.

在采用了的诱导风机系统后，就大大降低了相关成本费用，并且这个层面都能成为排风通道，送风和排风风机所需要的风压也比管道小的多，这样就可以选用较低风压的风机，大幅度降低了投资和运行成本，即使送排风机停止运转，诱导风机仍可运转，能对局部产生排烟效果。经过多年的理论研究和工程实践，诱导风机内置率离心风机，具有明显的噪声低、体积小、吊装方便、维护简单等优势，当前已广泛应用于地下停车场、体育馆、仓库等大型场所的通风中，并起到了显著的效果。

After the advanced induction fan system is adopted, the relevant costs are greatly reduced, and this level can become an exhaust channel, and the wind pressure required by the supply and exhaust fans is much smaller than that of the pipeline. In this way, the fans with lower wind pressure can be selected, which greatly reduces the investment and operation cost. Even if the supply and exhaust fans stop running, the induction fans can still run, It can produce smoke exhaust effect on local areas. After years of theoretical research and engineering practice, the induction fan has built-in high-efficiency centrifugal fan, which has obvious advantages such as low noise, small volume, convenient hoisting and simple maintenance. At present, it has been widely used in the ventilation of underground parking lots, gymnasiums, warehouses and other large places, and has achieved remarkable results.

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