Many people do not know the calculation method of the air volume of the rotary fan. Here is an introduction:

風(fēng)機風(fēng)量的定義為:風(fēng)速V與風(fēng)道截面積F的乘積.大型風(fēng)機由于能夠用風(fēng)速計準(zhǔn)確測出風(fēng)速,所以風(fēng)量計算也很簡單,直接用公式Q=VF,便可算出風(fēng)量.

Fan air volume is defined as the product of wind speed V and duct sectional area F Because the wind speed of large fan can be accurately measured by anemometer, the air volume calculation is also very simple. The air volume can be calculated directly by using the formula Q=VF

風(fēng)機數(shù)量的確定根據(jù)所選房間的換氣次數(shù)，計算廠房所需總風(fēng)量，進(jìn)而計算得風(fēng)機數(shù)量。計算公式：N=V×n/Q其中：N——風(fēng)機數(shù)量（臺）；V——場地體積（m3）；n——換氣次數(shù)（次/時）；Q——所選風(fēng)機型號的單臺風(fēng)量（m3/h）。風(fēng)機型號的選擇應(yīng)該根據(jù)廠房實際情況，盡量選取與原窗口尺寸相匹配的風(fēng)機型號，風(fēng)機與濕簾盡量保持一定的距離（盡可能分別裝在廠房的山墻兩側(cè)），實現(xiàn)良好的通風(fēng)換氣效果。

The number of fans is determined by calculating the total air volume required by the plant according to the air exchange rate of the selected room, and then the number of fans is calculated. Calculation formula: N=V × N/Q, in which: N -- number of fans (set); V - site volume (m3); N -- Ventilation rate (times/hour); Q -- single air volume of the selected fan model (m3/h). The fan model shall be selected according to the actual situation of the plant, and the fan model matching the original window size shall be selected as far as possible. The fan and the wet curtain shall be kept at a certain distance (installed on both sides of the gable of the plant as far as possible) to achieve good ventilation effect.

回轉(zhuǎn)風(fēng)機的排風(fēng)側(cè)盡量不靠近附近建筑物，以防影響附近住戶。如從室內(nèi)帶出的空氣中含有污染環(huán)境，可以在風(fēng)口安裝噴水裝置，吸附近污染物集中回收，不污染環(huán)境。

The exhaust side of the rotary fan shall not be close to the nearby buildings as far as possible to avoid affecting the nearby residents. If the air brought out from the room contains polluted environment, sprinklers can be installed at the tuyere, and the pollutants near the suction can be collected centrally, so as not to pollute the environment.

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