涩老板在线免费视频_午夜成人精品_神马理论午夜,,_亚洲有薄码区久久欧美精品一区_97人人色_神马在线精品_成人熟女一区二区_亚洲二区三区四区_人妻午夜免费_大鸡巴猛男爆操骚逼国产一区二区_丁香婷婷久久一区二区三区_岛国内射美女_亚洲一级电影,亚洲欧美日韩国产最新版,亚洲五月综合缴情综合久久本,少妇色情喷水又紧又爽小说,巜上司的少妇的滋味,国产精品三级女人国产香蕉,亚洲最好的免费电影,欧美亚洲国产成人精品,国产永久一区二区三区,亚洲综合一区无码精品,歳の熟女セックス,内射带小孩熟妇,果冻传媒在线看免费视频观看,成人欧美一区二区三区片,亚洲 片内射欧美美妇,一本无码人妻在中文字幕免费,亚洲无毛视频,中文字幕丰满孑伦无码专区,亚洲爆乳无码专区色戒纶理,肉乳床欢无码片动漫软件,欧美日韩一区二区另类,久热只有精品在线直播,精品亚洲一区二区在线播放,精品国产乱码久久久久久影片,国产一级高清在线观看,国产精品福利在线一区,成人动漫下载,乱伦性爱视频,xo无码AV毛,国产黄A片免费网站免费,日韩欧美一级特黄特色大片

In daily life, there are pipes everywhere, but what they are used for is not very clear. Ventilation pipes seem simple, but in fact, each rough pipe is composed of many different functions, which can meet the building's multiple requirements for ventilation and associated, so it is more convenient to use. As a ventilation duct, we should strive for perfection in each individual component. Let's take a look at which parts the ventilation duct is composed of.

1、通風管道。在通風系統(tǒng)中，依靠通風管來送入或抽出空氣。通風管的截面有圓形和矩形。通風管除直管外，由彎頭、來回彎、變徑彎，三通、四通等管件按工程實際需要組合而成。

1. Ventilation duct. In a ventilation system, air is fed in or drawn out by means of a ventilation pipe. The cross section of vent pipe is circular and rectangular. Except for straight pipes, ventilation pipes are composed of elbows, back and forth bends, reducing bends, tees, crosses and other pipe fittings according to the actual needs of the project.

2、各類風口。為了向室內(nèi)送入或室內(nèi)排出空氣，在通風管上設(shè)置的各種型式的送風口或吸風口，以調(diào)節(jié)送入或吸出的空氣量。風口的類型很多，常用的類型是裝有網(wǎng)狀和條形格柵的矩形風口，設(shè)有聯(lián)動調(diào)節(jié)裝置，其他的類型沒有聯(lián)動調(diào)節(jié)裝置。風口分為單層、雙層、三層及不同形式的散流器。

2. Various air outlets. In order to supply or exhaust indoor air, various types of air supply or suction outlets are set on the ventilation pipe to regulate the amount of air supplied or sucked. There are many types of tuyeres. The commonly used type is the rectangular tuyere with mesh and strip grid, which is equipped with linkage adjustment device. Other types have no linkage adjustment device. The tuyere is divided into single layer, double layer, three layers and diffusers of different forms.

3、閥門。安裝于風管上的用以調(diào)節(jié)風量和關(guān)閉個別支管的通風部件。通風與空調(diào)工程常用的閥門有插板閥、蝶閥、多葉調(diào)節(jié)閥、圓開瓣式啟動閥、空氣處理室中旁通閥、防火閥和止回閥等，

3. Valves. Ventilation components installed on air ducts to regulate air volume and close individual branches. The valves commonly used in ventilation and air conditioning engineering include gate valve, butterfly valve, multi blade regulating valve, round open flap starting valve, bypass valve in air handling room, fire damper and check valve, etc,

4、消聲器。防止噪聲傳入室內(nèi)所采用的裝置。在空調(diào)工程中采用的有阻性捎聲器、抗性捎聲順、共振性消聲器和寬頻帶復(fù)合式消聲器等。?

4. Muffler. Devices used to prevent noise from entering the room. Resistive sound carrier, reactive sound carrier, resonant muffler and broadband composite muffler used in air conditioning engineering.?

5、除塵器。是凈化空氣的一種設(shè)備，一般分為旋風式除塵器、濕式除塵器和袋式除塵器等。

5. Dust remover. It is a kind of equipment for purifying air, generally divided into cyclone dust remover, wet dust remover and bag type dust remover.

6、通風機。是機械通風系統(tǒng)中迫使空氣流動的機械。通風機是通風與空調(diào)系統(tǒng)的主要設(shè)備，根據(jù)構(gòu)造原理分為軸流式通風機和離心式通風機兩類。

6. Ventilators. It is a mechanical ventilation system that forces air to flow. Fan is the main equipment of ventilation and air conditioning system, which can be divided into axial flow fan and centrifugal fan according to the structure principle.

7、風帽。它用于排風系統(tǒng)的末端，它的作用是向室外排除污濁空氣。按其形式分有：適用于一般機械排風系統(tǒng)的傘形風帽，適用于除塵系統(tǒng)的錐形風帽，適用于自然排風系統(tǒng)的簡形風帽。

7. Hood. It is used at the end of the exhaust system, and its role is to remove dirty air to the outside. According to its form, it can be divided into: umbrella type wind cap suitable for general mechanical exhaust system, cone type wind cap suitable for dust removal system, and simple type wind cap suitable for natural exhaust system.