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 installation calculation, there is a special system for HVAC, and ventilation system is an important part of HVAC. Let me talk about the operation method and precautions of the ventilation system.

　　首先，通風系統(tǒng)在安裝計算中有兩種方法，一種是繪圖法，另一種是轉換法。 這次，談談轉換方法的應用。

　　Firstly, there are two methods in installation calculation of ventilation system, one is drawing method, the other is conversion method. This time, talk about the application of conversion methods.

　　通風考慮因素主要包括風口，風道，風門，風力設備和一些配件。

　　The major considerations of ventilation include air outlets, air ducts, air doors, wind power equipment and some accessories.

　　這次主要強調通風系統(tǒng)中風管和風門的操作注意事項：

　　Emphasis is placed on the operation of air ducts and air doors in the ventilation system.

　　一，風管的識別

　　1. Identification of air ducts

　　在轉換管道之前，必須有明確的內容，即管道的高度。 使用高度調整命令查看時，有時顯示的結果會有所不同。 那是因為管道和管道的標高是管道或管道的中心標高。 當管道很高時，它就是管道。 如果使用風管，則指示高程時方法會有所不同。 據(jù)說管道的底部是高程，或者是中心高程，或者是高海拔。 因此，在導風管之前，有必要查看圖紙上的導風管是否平齊或中心齊平，并相應調整管的底部高度，中心高度和頂部高度。  （此外，在進行風管轉換時，還必須使用相應的風管）。

　　Before switching the pipeline, there must be a clear content, that is, the height of the pipeline. When viewed with the height adjustment command, sometimes the results will be different. That's because the elevation of pipes and pipes is the central elevation of pipes or pipes. When the pipe is very high, it is the pipe. If air duct is used, the method of indicating elevation will be different. It is said that the bottom of the pipeline is the elevation, or the central elevation, or the highest elevation. Therefore, before the duct, it is necessary to check whether the duct on the drawing is even or the center is even, and adjust the bottom height, the center height and the top height of the duct accordingly. (In addition, the corresponding duct must be used when the duct conversion is carried out).

　　現(xiàn)在有必要做好風管轉換。 此步驟應輸入以下方面：一個是管道的材料，另一個是管道的壁厚，第三個是管道的界面類型，第四個是管道的絕緣厚度。 好查看這些參數(shù)的說明，否則請參見05N4-3的相關規(guī)定。

　　Now it is necessary to do a good job of air duct conversion. This step should input the following aspects: one is the material of the pipe, the other is the wall thickness of the pipe, the third is the interface type of the pipe, and the fourth is the insulation thickness of the pipe. It is better to see the description of these parameters, otherwise please refer to the relevant provisions of 05N4-3.

　　二，風閥的起草及注意事項

　　2. Drafting of air valves and matters needing attention

　　關于阻尼器，它可以轉換或直接繪制。 該方法可以參考轉換設備。 這里談談風門的特殊內容。 在管道行業(yè)中，閥門并沒有扣除管道的長度，但是在管道中，阻尼器就是要減少管道的長度。 對于不同類型的阻尼器，有不同的推導方法。 如下圖所示，某些風管寬度無論是什么值，風門僅屈曲一個固定值； 一些是風道寬度，風門的長度是固定的，風道的高度（或半徑）的值； 管道的寬度與風門的長度相對應。 我們可以根據(jù)具體說明選擇不同的風門類別。

　　With respect to dampers, they can be converted or drawn directly. This method can refer to the conversion equipment. Here we talk about the special content of the damper. In the pipeline industry, the valve does not deduct the length of the pipeline, but in the pipeline, the damper is to reduce the length of the pipeline. There are different deduction methods for different types of dampers. As shown in the figure below, some duct widths, no matter what, buckle only a fixed value; some are duct widths, the length of the duct is fixed, the height (or radius) of the duct; the width of the duct corresponds to the length of the duct. We can choose different types of throttle according to the specific instructions.