国产剧情探花高颜值在线,91av在线播放观看国产,强壮公弄得我次次高潮小说,国产在线不卡人成人小说,久久亚洲精品成人?v观看,国产乱女乱子视频在线播放,024亚洲国产乱人视频,国产精品福利影院,欧美精品v国产在线观看,高清少妇三级亚洲

Ventilation ducts are generally divided into three types of materials: white iron (galvanized) ventilation ducts, fiberglass ventilation ducts, and composite material ventilation ducts;

1、凈化空調(diào)系統(tǒng)用通風(fēng)管道 【鍍鋅版、不銹鋼】

1. Ventilation ducts for purification air conditioning systems [galvanized version, stainless steel]

2、系統(tǒng)用通風(fēng)管道【鍍鋅板、彩鋼保溫板】

2. Ventilation ducts for central systems [galvanized sheet, color steel insulation board]

3、環(huán)境控制系統(tǒng)用風(fēng)管【鍍鋅板、不銹鋼】

3. Air ducts for environmental control systems [galvanized sheet, stainless steel]

4、工業(yè)通風(fēng)系統(tǒng)用風(fēng)管【鋼板、鍍鋅板】

4. Air ducts for industrial ventilation systems [steel plates, galvanized sheets]

無(wú)機(jī)玻璃鋼通風(fēng)管道

Inorganic fiberglass ventilation ducts

無(wú)機(jī)玻璃鋼通風(fēng)管道又稱為玻鎂風(fēng)管，是以改性菱鎂水泥為膠結(jié)料，摻入有機(jī)或無(wú)機(jī)填充料，并用中堿玻璃纖維布進(jìn)行增強(qiáng)而制成的一種管材。具有不燃燒、耐腐蝕、強(qiáng)度高和重量輕等特點(diǎn)，被廣泛應(yīng)用于賓館、飯店、大型商場(chǎng)、寫字樓的空調(diào)工程以及礦井通風(fēng)、工廠排煙、除塵等工程。在建筑工程、地下工程及工業(yè)廠房的通風(fēng)中，它已經(jīng)完全取代了不耐燃的有機(jī)玻璃鋼通風(fēng)管，并在逐步取代防腐性能差的鍍鋅鐵皮通風(fēng)管。尤其是在濕度大的地下工程和長(zhǎng)江以南地區(qū)，它的優(yōu)越性更為顯著。

Inorganic fiberglass ventilation ducts, also known as glass magnesium ducts, are a type of pipe material made from modified magnesite cement as a binder, mixed with organic or inorganic fillers, and reinforced with medium alkali glass fiber cloth. It has the characteristics of non combustion, corrosion resistance, high strength, and light weight, and is widely used in the air conditioning engineering of hotels, restaurants, large shopping malls, office buildings, as well as mine ventilation, factory smoke exhaust, dust removal and other engineering. In the ventilation of building engineering, underground engineering, and industrial factories, it has completely replaced the non combustible organic glass reinforced plastic ventilation pipes, and is gradually replacing the galvanized iron sheet ventilation pipes with poor anti-corrosion performance. Especially in underground projects with high humidity and areas south of the Yangtze River, its advantages are even more significant.

分類

classification

根據(jù)國(guó)家建筑材料行業(yè)標(biāo)準(zhǔn)JC646-1996標(biāo)準(zhǔn)的規(guī)定，無(wú)機(jī)玻璃鋼通風(fēng)管道按用途分為P類管和D類管兩種。P類管主要用于公共建筑、人防工程及一般需要安裝通風(fēng)及空調(diào)設(shè)施的工業(yè)廠房和礦井等，作通風(fēng)管、排煙管和排塵管；D類管則主要用作住宅建筑的通風(fēng)管、排油煙管。

According to the national building materials industry standard JC646-1996, inorganic fiberglass ventilation pipes are divided into two types according to their purpose: P-type pipes and D-type pipes. P-type pipes are mainly used in public buildings, civil air defense projects, and industrial factories and mines that generally require the installation of ventilation and air conditioning facilities, as ventilation pipes, smoke exhaust pipes, and dust exhaust pipes; Class D pipes are mainly used as ventilation pipes and oil fume exhaust pipes in residential buildings.

產(chǎn)品質(zhì)量等級(jí)

Product quality level

根據(jù)無(wú)機(jī)玻璃鋼通風(fēng)管道的物理力學(xué)性能和外觀質(zhì)量，無(wú)機(jī)玻璃鋼通風(fēng)管道分為一級(jí)品和合格品兩個(gè)等級(jí)。

According to the physical and mechanical properties and appearance quality of inorganic fiberglass ventilation pipes, they are divided into two levels: first level products and qualified products.

產(chǎn)品規(guī)格

Product specifications

無(wú)機(jī)玻璃鋼通風(fēng)管道的尺寸主要由設(shè)計(jì)單位根據(jù)工程需要的通風(fēng)量進(jìn)行設(shè)計(jì)，也可根據(jù)客戶的具體要求設(shè)計(jì)。

The size of inorganic fiberglass ventilation ducts is mainly designed by the design unit based on the ventilation volume required by the project, and can also be designed according to the specific requirements of the customer.

無(wú)機(jī)玻璃鋼通風(fēng)管道的外形分圓形和矩形兩種截面。管道的長(zhǎng)一般為2～3m，如果圓形管直徑和矩形管的邊長(zhǎng)大于1.5m時(shí)，管段長(zhǎng)度可適當(dāng)縮短。管段之間的連接方式有兩種：一是法蘭連接，一是承插式連接

The appearance of inorganic fiberglass ventilation ducts can be divided into two sections: circular and rectangular. The length of a pipeline is generally 2-3m. If the diameter of a circular pipe and the side length of a rectangular pipe are greater than 1.5m, the length of the pipe section can be appropriately shortened. There are two connection methods between pipe sections: flange connection and socket connection