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離心式通風機工作原理介紹

文章來源: 作者:羅茨機電 發布時間:2022-06-20 瀏覽次數:242

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離心式通風機主要由:葉輪、機殼、聯軸器、軸。 葉輪是產生風壓和傳遞能量的主要作功部件;機殼主要用來引入氣體和排出氣體,同時將氣體的部分動能變為壓力能;聯軸器用來連接電機和風機,傳遞力矩;軸安裝并固定葉輪,通過聯軸器與電機。離心通風機主要由葉輪和機殼組成,小型通風機的葉輪直接裝在電動機上中、大型通風機通過聯軸器或皮帶輪與電動機聯接。離心通風機一般為單側進氣,用單級葉輪;流量大的可雙側進氣,用兩個背靠背的葉輪,又稱為雙吸式離心通風機。

Centrifugal fan mainly consists of impeller, casing, coupling and shaft. The impeller is the main work component that generates wind pressure and transmits energy; The casing is mainly used to introduce and discharge gas, and change part of the kinetic energy of the gas into pressure energy; The coupling is used to connect the motor and fan to transmit torque; The shaft is installed and fixed with the impeller, which is connected with the motor through the coupling. Centrifugal fan is mainly composed of impeller and casing. The impeller of small fan is directly installed on the motor. Medium and large fans are connected with the motor through coupling or belt pulley. Centrifugal fan is generally single-sided air inlet, with single-stage impeller; Large flow can be double-sided air intake, with two back-to-back impellers, also known as double suction centrifugal fan.

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氣體排出 :離心通風機葉片之間的氣體在葉輪旋轉時,受到離心力作用獲得動能(動壓頭)從葉輪周邊排出,經過蝸殼狀機殼的導向,使之向通風機出口流動,從而在葉輪中部位形成負壓,使外部氣流不斷流入補充,從而使風機能排出氣體。

Gas discharge: when the impeller rotates, the gas between the blades of the centrifugal fan is discharged from the periphery of the impeller by the kinetic energy (dynamic pressure head) obtained by the centrifugal force, and flows to the outlet of the fan through the guidance of the volute like casing, thus forming a negative pressure in the middle of the impeller, making the external air flow continuously flow in and supplement, so as to discharge the gas from the fan.

風壓減小 :電動機通過軸把動力傳遞給風機葉輪,葉輪旋轉把能量傳遞給空氣,在旋轉的作用下空氣產生離心力,空氣延風機葉輪的葉片向周圍擴散,此時,風機葉輪越大,空氣所接受的能量越大,也就是風機的壓頭(風壓)越大。如果將大的葉輪割小,不會影響風量,只會減小風壓。

Wind pressure reduction: the motor transmits power to the fan impeller through the shaft, and the rotation of the impeller transfers energy to the air. Under the action of rotation, the air generates centrifugal force, and the air diffuses around along the blades of the fan impeller. At this time, the larger the fan impeller, the greater the energy received by the air, that is, the greater the pressure head (wind pressure) of the fan. If the large impeller is cut down, the air volume will not be affected, but the air pressure will be reduced.

葉輪是通風機的主要部件,它的幾何形狀、尺寸、葉片數目和制造精度對性能有很大影響。葉輪經靜平衡或動平衡校正才能保證通風機平穩地轉動。按葉片出口方向的不同,葉輪分為前向、徑向和后向三種型式。前向葉輪的葉片頂部向葉輪旋轉方向傾斜;徑向葉輪的葉片頂部是向徑向的,又分直葉片式和曲線型葉片;后向葉輪的葉片頂部向葉輪旋轉的反向傾斜。

Impeller is the main component of fan. Its geometry, size, number of blades and manufacturing accuracy have a great impact on its performance. The impeller can rotate smoothly only after static balance or dynamic balance correction. According to the different direction of blade outlet, the impeller is divided into three types: forward, radial and backward. The top of the blade of the forward impeller is inclined to the rotation direction of the impeller; The blade top of radial impeller is radial, which is divided into straight blade type and curved blade type; The reverse inclination of the blade top of the backward impeller to the rotation of the impeller.

以上就是陜西離心式風機廠家http://www.makemoore.com為大家介紹的內容,感謝您在百忙之中查看我公司的信息內容,如果您想要了解的更多,歡迎您來電進行咨詢!

The above is Shaanxi centrifugal fan manufacturer http://www.makemoore.com Thank you for checking the information of our company in your busy schedule. If you want to know more, you are welcome to call us for consultation!


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