影響螺桿空壓機(jī)實(shí)際排氣量的因素
Factors affecting the actual exhaust volume of screw air compressors
1.設(shè)備轉(zhuǎn)速：
1. Equipment speed:
螺桿空壓機(jī)的排氣量與轉(zhuǎn)速成正比，而轉(zhuǎn)速往往會隨電網(wǎng)的電壓、頻率而變化。當(dāng)電壓降低或頻率降低時(shí)，轉(zhuǎn)速將下降，使螺桿空壓機(jī)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(jī)是容積型壓縮機(jī)，吸氣體積不變。當(dāng)吸氣溫度升高，或吸氣管路阻力過大而使吸入壓力降低時(shí)，氣體的密度減小，相應(yīng)地會減少螺桿空壓機(jī)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(zhuǎn)子相互之間及轉(zhuǎn)子與外殼之間在運(yùn)轉(zhuǎn)時(shí)沒有接觸，保持有一定的縫隙，所以會產(chǎn)生氣體泄漏。壓力升高后的氣體通過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，在從動轉(zhuǎn)子的齒頂做有密封齒，主動轉(zhuǎn)子的齒根開有密封槽，端面也加工有環(huán)狀或條狀的密封齒。如果這些密封線磨損，將使泄漏量增加，因此平時(shí)維護(hù)的時(shí)候應(yīng)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:
氣體在壓縮過程中溫度會升高，轉(zhuǎn)子與機(jī)殼的溫度也相應(yīng)升高，所以在吸氣過程中，氣體會受到轉(zhuǎn)子和機(jī)殼的加熱而膨脹，因此相應(yīng)地會減少吸氣量。螺桿式空氣壓縮機(jī)的轉(zhuǎn)子中有的采用了油冷卻，機(jī)殼用水冷卻，其目的之一就是為了降低其溫度。當(dāng)冷卻效果不好纖維 驅(qū)鳥設(shè)備 保定通風(fēng)管道 塑料土工格柵 檢查井模具 流水槽模具 鍛造廠家 華爾街銅牛時(shí)，溫度則升高，螺桿空壓機(jī)排氣量便會減少。
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.
