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離心式管道風機特點介紹

文章來源: 作者:羅茨機電 發布時間:2022-08-23 瀏覽次數:211

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離心式管道風機我想大家對這個詞很陌生,盡管很多人都不知道離心式管道風機是什么,有什么作用,但是它確確實實的存在于我們生活中的每個角落是不可缺少的存在,下面我們就來了解下離心式管道風機。

Centrifugal duct fan I think you are very familiar with this word. Although many people do not know what centrifugal duct fan is and what its function is, it does exist in every corner of our life and is indispensable. Let's learn about centrifugal duct fan.

離心風機是依靠輸入的機械能,提高氣體壓力并排送氣體的機械,它是一種從動的流體機械。它根據動能轉換為勢能的原理,利用高速旋轉的葉輪將氣體加速,然后減速、改變流向,使動能轉換成勢能(壓力)。在單級離心風機中,氣體從軸向進入葉輪,氣體流經葉輪時改變成徑向,然后進入擴壓器。在擴壓器中,氣體改變了流動方向造成減速,這種減速作用將動能轉換成壓力能。壓力增高主要發生在葉輪中,其次發生在擴壓過程。在多級離心風機中,用回流器使氣流進入下一葉輪,產生更高壓力。

Centrifugal fan is a driven fluid machine that relies on input mechanical energy to increase gas pressure and discharge gas. According to the principle that kinetic energy is converted into potential energy, it uses the high-speed rotating impeller to accelerate the gas, then decelerate and change the flow direction to convert kinetic energy into potential energy (pressure). In a single-stage centrifugal fan, the gas enters the impeller from the axial direction, changes into the radial direction when the gas flows through the impeller, and then enters the diffuser. In the diffuser, the gas changes the flow direction to cause deceleration, which converts kinetic energy into pressure energy. The pressure increase mainly occurs in the impeller, and then occurs in the diffuser process. In the multi-stage centrifugal fan, the reflux device is used to make the air flow enter the next impeller to generate higher pressure.

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離心式管道風機—離心式管道風機構成

Centrifugal duct fan - composition of centrifugal duct fan

機殼:由鋼板制成堅固可靠,可為分整體式和半開式,半開式便于檢修。

Shell: made of steel plate, solid and reliable, can be divided into integral type and semi open type, which is convenient for maintenance.

葉輪:由葉片、曲線型前盤和平板后盤組成。

Impeller: composed of blades, curved front disk and flat rear disk.

轉子:應做過靜平衡和動平衡,保證轉動平穩,性能良好。

Rotor: static balance and dynamic balance shall be conducted to ensure stable rotation and good performance.

傳動部分:有主軸、軸承箱、滾動軸承及皮帶輪(或聯軸器)組成。

Transmission part: it is composed of main shaft, bearing box, rolling bearing and pulley (or coupling).

性質:基礎裝置的自振頻率不得大于電機和通風機轉速的1/3,通風機運轉時的振動速度與通風機靜止時的振動速度的差需大于3倍以上。

Nature: the natural vibration frequency of the foundation device shall not be greater than 1 / 3 of the rotating speed of the motor and the fan. The difference between the vibration speed of the fan during operation and the vibration speed of the fan at rest shall be more than 3 times.

柔性接頭:通風機進出口與風管之間連接,應設柔性接頭。進風管、出風管等裝置應有單獨支撐,并由基礎或與建筑物其他構件支撐牢固,機殼不應承受其它機件的重量。

Flexible joint: flexible joint shall be set between the inlet and outlet of the fan and the air duct. Air inlet pipe, air outlet pipe and other devices shall be independently supported and firmly supported by the foundation or other components of the building. The cabinet shall not bear the weight of other parts.

建筑結構件:通風機安裝在建筑物構件上時,應采取隔振措施。

Building structure: when the ventilator is installed on the building components, vibration isolation measures shall be taken.

直風管:管道通風機可安裝在直風管上,具有接管方便,占用空間較小等優點

Straight air duct: the duct fan can be installed on the straight air duct, which has the advantages of convenient connection and small occupation space

離心式管道風機能好少、大容量、高壓力、噪聲低、結構緊、效率高、可塑性好,已經廣泛應用于賓館、劇院、ktv、商場大專院校及民用建筑的通風換氣,成為了人們在生活當中不可缺少的一部分了。

The centrifugal duct fan has good performance, small capacity, high pressure, low noise, tight structure, high efficiency and good plasticity. It has been widely used in the ventilation of hotels, theatres, KTV, shopping malls, colleges and universities and civil buildings, and has become an indispensable part of people's life.

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