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　　In the installation calculation, there is a professional HVAC, in which the ventilation system is a very important link. Explain the operation method and precautions of ventilation system.

　　首先，通風(fēng)系統(tǒng)的安裝計算有兩種方法，一種是跟蹤法，另一種是變換法。這一次，我將討論轉(zhuǎn)換的應(yīng)用。

　　First of all, there are two methods to calculate the installation of ventilation system, one is tracking method, the other is transformation method. This time, I will discuss the application of transformation.

　　通風(fēng)主要考慮風(fēng)口、風(fēng)管、閥門、風(fēng)機(jī)設(shè)備及一些附件。

　　The ventilation specialty mainly considers the air outlet, air duct, valve, fan equipment and some accessories.

　　本文主要強(qiáng)調(diào)通風(fēng)系統(tǒng)中風(fēng)管、風(fēng)門操作注意事項(xiàng):

　　This paper mainly focuses on the precautions for the operation of the wind pipe and the air door of the ventilation system

　　一、風(fēng)道識別

　　1、 Air duct identification

　　對于風(fēng)管的改造，首先要有一個內(nèi)容要明確，那就是關(guān)于風(fēng)管的標(biāo)高。當(dāng)使用高度調(diào)整命令查看時，結(jié)果有時會不同。這是因?yàn)楣艿赖臉?biāo)高和管道是管道或管道的標(biāo)高。當(dāng)我們談?wù)摴艿烙卸喔邥r，我們把管道當(dāng)做一條線。如果你畫一個導(dǎo)管，你會有不同的表示海拔的方法。底層，中間層，頂層。因此，在風(fēng)管安裝前，要看圖紙上的風(fēng)管頂部是平的，底部是平的，還是是平的，并相應(yīng)地調(diào)整風(fēng)管底部、和頂部的標(biāo)高。(另外，在風(fēng)管轉(zhuǎn)換時，也要有針對性地使用相應(yīng)的風(fēng)管)。

　　For the renovation of air duct, first of all, there should be a clear content, that is, the elevation of air duct. When you use the height adjustment command to view, the results are sometimes different. This is because the elevation of the pipe and the elevation of the center of the pipe or pipe. When we talk about how high the pipe is, we think of the pipe as a line. If you draw a catheter, you will have different ways to represent the altitude. Bottom, middle, top. Therefore, before installing the air duct, it is necessary to see whether the top of the air duct is flat, the bottom is flat or the center is flat on the drawing, and adjust the elevation of the bottom, center and top of the air duct accordingly. (in addition, when the duct is converted, the corresponding duct should also be used specifically.).

　　現(xiàn)在做風(fēng)管的變換,這一步應(yīng)該輸入以下方面:個是風(fēng)管的材料,第二個是風(fēng)管道的壁厚,第三是風(fēng)管道的接口類型,第四是風(fēng)管的保溫厚度。這些參數(shù)更好的描述，如果不是，請參考05n4-3的相關(guān)規(guī)定。

　　Now, for the transformation of air duct, the following aspects should be input: the first is the material of air duct, the second is the wall thickness of air duct, the third is the interface type of air duct, and the fourth is the insulation thickness of air duct. The best description of these parameters, if not, please refer to the relevant provisions of 05n4-3.

　　二、風(fēng)閥的圖紙及注意事項(xiàng)

　　2、 Drawing and precautions of air valve

　　關(guān)于風(fēng)閥可以進(jìn)行改造，也可以直接繪制，方法可以參考改造設(shè)備。這說明了順風(fēng)閥的一些特別之處。在管道行業(yè)中，閥門不是扣除管道長度，而是在風(fēng)管中，風(fēng)管閥門是扣除風(fēng)管長度，對于不同類型的風(fēng)管閥門，有不同的扣除方法。如下圖所示，有足夠的風(fēng)管寬度，無論什么值，風(fēng)閥只有扣一個固定值;有足夠的風(fēng)管寬度就什么值，氣閥扣的長度固定加風(fēng)管高度(或半徑);還有一種情況是管道的寬度與閥門的長度有對應(yīng)關(guān)系。我們可以根據(jù)具體說明選擇不同類型的風(fēng)閥。

　　The air valve can be modified or drawn directly. The method can refer to the modified equipment. This shows some special features of the downwind valve. In the pipeline industry, the valve does not deduct the pipe length, but in the air pipe, the air pipe valve deducts the air pipe length. For different types of air pipe valves, there are different deduction methods. As shown in the figure below, there is enough duct width. No matter what value, there is only one fixed value for the air valve. If there is enough duct width, the length of the air valve buckle is fixed plus the duct height (or radius). There is also a corresponding relationship between the width of the duct and the length of the valve. We can choose different types of air valves according to the specific instructions.