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風(fēng)管及管道部件設(shè)計過程中常用的計算方法您知道是怎樣的嗎？實際上對于業(yè)余人員來講，可能不太好理解，但還是建議您在使用之前多來了解，下面山東通風(fēng)管道廠家為你解答：

Do you know the common calculation methods used in the design of duct and pipe components? In fact, it may not be easy for amateurs to understand, but it is still recommended that you learn more before use. The following is the answer from Shandong ventilation pipe manufacturer:

1.

one

風(fēng)管安裝按施工圖示不同規(guī)格以展開“面積”計算，不扣除檢查孔、測定孔、送風(fēng)口、吸風(fēng)口等所占面積。

The air duct installation shall be calculated based on the "area" of different specifications in the construction drawing, excluding the area occupied by inspection holes, measuring holes, air supply outlets, suction outlets, etc.

計算風(fēng)管長度時，一律以施工圖示線長度為準(zhǔn)（主管與支管以其線交點劃分），包括彎頭、三通、變徑管、天圓地方等管件的長度，但不得包括帆布、風(fēng)閥、消聲器、設(shè)備所占長度。直徑和周長按圖示尺寸為準(zhǔn)展開。

When calculating the length of the air duct, the length of the center line in the construction drawing shall prevail (the main pipe and the branch pipe shall be divided by the intersection of the center line), including the length of the elbow, tee, reducing pipe, the radius of the sky and other pipe fittings, but not including the length of canvas, air valve, muffler, and equipment. The diameter and perimeter shall be expanded according to the dimensions shown in the figure.

報價時定額已含損耗，計算結(jié)果不需要乘損耗系數(shù)。

The quota includes loss when quoting, and the calculation result does not need to be multiplied by loss factor.

2.

two

薄鋼板通風(fēng)管道、凈化通風(fēng)管道，復(fù)合型風(fēng)管（玻纖板、不燃無機復(fù)合風(fēng)管），報價定額內(nèi)已包括法蘭、加固框和吊托支架，不另行計算。但不包括過跨風(fēng)管落地支架，因此過跨風(fēng)管落地支架需按圖按規(guī)范計算重量。

Thin steel plate ventilation duct, purification ventilation duct, composite air duct (fiberglass board, incombustible inorganic composite air duct), flanges, reinforcement frame and lifting bracket have been included in the quotation quota, and are not calculated separately. However, it does not include the over-span air duct floor support, so the weight of the over-span air duct floor support shall be calculated according to the drawing and specifications.

3.

three

不銹鋼通風(fēng)管道、鋁板通風(fēng)管道，風(fēng)管咬口連接中報價定額包括管件、法蘭，但不包括吊托支架，焊接連接中報價定額僅包括管件，不包括法蘭和吊托支架，其工程量以“kg”為計量單位，故根據(jù)風(fēng)管連接方式按設(shè)計說明或規(guī)范計算法蘭和吊托支架重量。

For stainless steel ventilation pipes and aluminum plate ventilation pipes, the quotation quota in the air duct seaming connection includes pipe fittings and flanges, but does not include lifting brackets. The quotation quota in the welding connection only includes pipe fittings, but does not include flanges and lifting brackets. The work quantity is measured in "kg". Therefore, the weight of flanges and lifting brackets is calculated according to the air duct connection method and the design instructions or specifications.

參考已施工項目結(jié)算數(shù)據(jù)：法蘭（不銹鋼角鐵3#）的含量測算0.9kg/m2；吊托支架（不銹鋼角鐵4#、不銹鋼槽鋼6#）含量測算1.5kg/m2；若其他項目有類似工程請及時提供數(shù)據(jù)及時更正。

Refer to the settlement data of the constructed project: the content of flange (stainless steel angle iron 3 #) is estimated to be 0.9kg/m2; The content of lifting bracket (stainless steel angle iron 4 #, stainless steel channel steel 6 #) is estimated to be 1.5kg/m2; If there are similar projects in other projects, please provide data timely for correction.

4.

four

風(fēng)管軟接：

Flexible connection of air duct:

（1）帆布接口，按圖示尺寸以“平方米”計算，一般寬度為250mm，具體以現(xiàn)場制作經(jīng)驗考慮；

(1) The canvas interface is calculated in "square meters" according to the size shown in the figure, and the general width is 250mm, which is based on the site production experience;

（2）軟管風(fēng)管，按圖紙尺寸以“米”計算。

(2) The hose duct is calculated in "m" according to the drawing size.

5.

five

風(fēng)管導(dǎo)流葉片，按風(fēng)管規(guī)格計算彎頭個數(shù)，按下表計算導(dǎo)流葉片“面積”。

For the guide vane of air duct, calculate the number of elbows according to the specification of air duct, and calculate the "area" of guide vane according to the following table.

6.

six

風(fēng)口風(fēng)閥，按不同類型（防火閥、蝶閥、對開多葉閥、散流器、百葉等）不同規(guī)格以“個”為計量單位（按成品計算）。

The unit of measurement is "piece" (calculated as finished product) according to different types (fire damper, butterfly valve, split multi-leaf valve, diffuser, louver, etc.) and different specifications.

7.

seven

消聲器、消聲靜壓箱、靜壓箱，按不同規(guī)格以“臺”為計量單位（按成品計算），除設(shè)計要求現(xiàn)場制作時以“平方米”（展開六個面面積）計算。

Silencer, silencing static pressure box and static pressure box shall be measured by "set" (calculated by finished product) according to different specifications, and shall be calculated by "square meter" (six surface areas) except for the design requirements.

8.

eight

防蟲網(wǎng)以“個”計算或者以“平方米”計算，組價人員可根據(jù)需要自行換算。

The insect-proof net is calculated in "pieces" or "square meters", and the pricing personnel can convert it according to their needs.

9.

nine

設(shè)計說明有需要風(fēng)管檢查孔與風(fēng)管測定孔的，檢查孔按下表換算，以重量計算，測定孔按其型號以“個”為計量單位。

If the design specification requires air duct inspection hole and air duct measuring hole, the inspection hole shall be converted according to the following table and calculated by weight, and the measuring hole shall be measured in "piece" according to its model.

10.

ten

過墻套管采用2mm厚鋼板或其他厚度時（按設(shè)計圖紙）以“面積”計算。

When the wall casing adopts 2mm thick steel plate or other thickness (according to the design drawing), it is calculated by "area".

關(guān)于風(fēng)管及管道部件設(shè)計中常用的計算方法，咱們就了解到這里了，十個方面的要點希望能夠帶給您一定的信息了解，更多事項歡迎前來咨詢我們http://www.gaoyouwenhua.com！

We have learned about the commonly used calculation methods in the design of air duct and pipe components. We hope that the ten key points can give you some information. For more matters, please come to consult us http://www.gaoyouwenhua.com ！