Factors affecting the actual exhaust volume of screw air compressors
1. Equipment speed:
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. Inhalation status:
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. Gas leakage:
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. Cooling effect:
气体在压缩过程中温度会升高，转子与机壳的温度也相应升高，所以在吸气过程中，气体会受到转子和机壳的加热而膨胀，因此相应地会减少吸气量。螺杆式空气压缩机的转子中有的采用了油冷却，机壳用水冷却，其目的之一就是为了降低其温度。当冷却效果不好纤维 驱鸟设备 保定通风管道 塑料土工格栅 检查井模具 流水槽模具 锻造厂家 华尔街铜牛
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.