亚洲精品鲁一鲁一区二区三区-最爽无遮挡行房视频-强壮的公次次弄得我高潮A片日本-精品人妻无码一区二区三区换脸-中文字幕亚韩-亚洲国产精品一区二区第一页-丰满岳乱妇一区二区三区-大陆极品少妇内射AAAAAA-国产乱人伦AV麻豆网-AV国産精品毛片一区二区三区-午夜精品视频在线无码-免费精品一区二区三区A片在线-在线天堂无限次观看,亚洲日韩无码一区二区,中文字幕乱人伦视频在线,亚洲欧美熟妇综合久久久久久,少妇无码一区二区三区免费久久,欧美黑人一级片在线观看,久久久精品无码一区三区,国产视频在线观看蜜芽,大香蕉五月婷婷精品视频 ,久草精品在线,国产无码在线播放一区二区,囯产无码交换大片在线播放,八戒八戒在线高清观看视频 ,娇妻被又粗又长又猛玩,国产曰肥老太婆无遮挡,国产剧情黄色,国产成年无码久久久久毛片資訊,大香蕉太香蕉成人现现,逼逼爱爱爱无码免费观看,亚州色图欧美图片自偷自拍,碰碰视频麻豆,午夜一本,一起射综合影院,黑人干熟女,欧洲高清转码区一二区 ,国产高清视频色拍,粉嫩无码小泬无套在线观看,大香蕉在线网站,成人做爰理论片,成人漫,9l视频自拍九色9l成人

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.