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影響螺桿空壓機實(shí)際排氣量的因素

網(wǎng)址:579ms.com  2023-11-06  作者:admin    閱讀:

影響螺桿空壓機實(shí)際排氣量的因素
Factors affecting the actual exhaust volume of screw air compressors
1.設備轉速:
1. Equipment speed:
螺桿空壓機的排氣量與轉速成正比,而轉速往往會(huì )隨電網(wǎng)的電壓、頻率而變化。當電壓降低或頻率降低時(shí),轉速將下降,使螺桿空壓機排氣量減少。
The exhaust volume of a screw air compressor is directly proportional to the speed, and the speed often varies with the voltage and frequency of the power grid. When the voltage or frequency decreases, the rotational speed will decrease, resulting in a decrease in the exhaust volume of the screw air compressor.
2.吸氣狀態(tài):
2. Inhalation status:
螺桿空壓機是容積型壓縮機,吸氣體積不變。當吸氣溫度升高,或吸氣管路阻力過(guò)大而使吸入壓力降低時(shí),氣體的密度減小,相應地會(huì )減少螺桿空壓機排氣量;
The screw air compressor is a volumetric compressor with a constant suction volume. When the suction temperature increases or the suction pressure decreases due to excessive resistance in the suction pipeline, the density of the gas decreases, which will correspondingly reduce the exhaust volume of the screw air compressor;
3.氣體泄漏:
3. Gas leakage:
轉子相互之間及轉子與外殼之間在運轉時(shí)沒(méi)有接觸,保持有一定的縫隙,所以會(huì )產(chǎn)生氣體泄漏。壓力升高后的氣體通過(guò)縫隙向吸氣管道及正在吸氣的嚙槽泄漏時(shí),將使排氣量減小。為了減少泄漏量,在從動(dòng)轉子的齒頂做有密封齒,主動(dòng)轉子的齒根開(kāi)有密封槽,端面也加工有環(huán)狀或條狀的密封齒。如果這些密封線(xiàn)磨損,將使泄漏量增加,因此平時(shí)維護的時(shí)候應該考慮到這些因素;
There is no contact between the rotors and between the rotor and the casing during operation, and there are certain gaps that can cause gas leakage. When the pressure increases and the gas leaks through the gap into the suction pipeline and the suction slot, it will reduce the exhaust volume. In order to reduce leakage, sealing teeth are made at the top of the teeth of the driven rotor, sealing grooves are opened at the root of the teeth of the active rotor, and ring or strip shaped sealing teeth are also machined on the end face. If these sealing lines are worn, it will increase the leakage rate, so these factors should be taken into account during maintenance;
4.冷卻效果:
4. Cooling effect:
氣體在壓縮過(guò)程中溫度會(huì )升高,轉子與機殼的溫度也相應升高,所以在吸氣過(guò)程中,氣體會(huì )受到轉子和機殼的加熱而膨脹,因此相應地會(huì )減少吸氣量。螺桿式空氣壓縮機的轉子中有的采用了油冷卻,機殼用水冷卻,其目的之一就是為了降低其溫度。當冷卻效果不好纖維 驅鳥(niǎo)設備 保定通風(fēng)管道 塑料土工格柵 檢查井模具 流水槽模具 鍛造廠(chǎng)家 華爾街銅牛時(shí),溫度則升高,螺桿空壓機排氣量便會(huì )減少。
During the compression process, the temperature of the gas will increase, and the temperature of the rotor and casing will also increase accordingly. Therefore, during the suction process, the gas will expand due to the heating of the rotor and casing, thereby reducing the suction amount. Some rotors of screw air compressors use oil cooling and the casing is cooled with water, one of the purposes is to reduce its temperature. When the cooling effect is not good, the temperature increases and the exhaust volume of the screw air compressor decreases.

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