澳门正版内部资料大公开通风管道有哪些分类？

发布人：   发布时间：2024-05-21 14:19:41

　　通风管道是为了使空气流通，降低有害气体浓度的一种市政基础设施。通风管，风管制作与安装所用板材、型材以及其他主要成品材料，应符合设计及相关产品标准的规定，并应用出厂检验合格证明，材料进场时应按有关标准进行验收。

Ventilation ducts are a type of municipal infrastructure designed to facilitate air circulation and reduce the concentration of harmful gases. The plates, profiles, and other main finished materials used for the production and installation of ventilation ducts and air ducts should comply with the design and relevant product standards, and apply factory inspection certificates. The materials should be inspected and accepted according to relevant standards when entering the site.

　　通风管道按材质分有：钢板风管、镀锌板风管、不锈钢通风管、玻璃钢通风管、塑料通风管、复合材料通风管、彩钢夹心保温板通风管、双面铝箔保温通风管、单面彩钢保温风管、涂胶布通风管、矿用塑料通风管等。

Ventilation ducts are classified by material: steel plate ducts, galvanized sheet ducts, stainless steel ducts, fiberglass ducts, plastic ducts, composite material ducts, color steel sandwich insulation board ducts, double-sided aluminum foil insulation ducts, single-sided color steel insulation ducts, coated fabric ducts, mining plastic ducts, etc.

　　按照通风方式，风管可分为以下几种：

According to ventilation methods, air ducts can be divided into the following types:

　　1，风管式通风：设备简单，灵活方便，易于拆卸，但由于断面小，随着管路的加长，通风阻力将增大。

1. Air duct ventilation: The equipment is simple, flexible and convenient, and easy to disassemble. However, due to the small cross-section, as the pipeline lengthens, the ventilation resistance will increase.

　　2，巷道式通风：适用于有平行导坑的长隧道，特点是通过前面的横通道，使正洞和平行导坑组成一个循环风流系统，在平导坑口附近安装通风机，将污浊空气由平导抽出，新鲜空气由正洞流入，形成循环风流。

2. Tunnel ventilation: suitable for long tunnels with parallel tunnels, characterized by forming a circulating air flow system between the main tunnel and parallel tunnels through the front horizontal channel. A ventilation fan is installed near the entrance of the horizontal tunnel to extract polluted air from the horizontal tunnel, and fresh air flows in from the main tunnel, forming a circulating air flow.

　　3，风墙式通风：利用隧道成洞部分空间，用砖砌或木板隔出一条风道，代替大直径风管，以缩短风管长度，而又能增大供风量满足通风要求，该方式适用于缩短较长，又无平行导坑可供利用，而管道式通风又难以全盘解决的情况。

3. Wind wall ventilation: Utilizing the space formed by the tunnel, a brick or wooden board is used to separate an air duct instead of a large-diameter air duct, in order to shorten the length of the air duct and increase the air supply to meet ventilation requirements. This method is suitable for situations where there is no parallel guide pit available for use, and pipeline ventilation is difficult to fully solve.

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