Dry screw vacuum pump is a high-tech product, which is mainly used in high-purity vacuum process. It has high vacuum degree, can adapt to harsh working conditions, has the ability to extract condensable and particulate gas, especially suitable for clean environment, and is easy to do anti-corrosion treatment. What should be paid attention to in routine inspection of screw vacuum pump?

每日检查的内容主要包括：1、油位线是否过高或过低；2、是否有足够的冷却水流量；3、检查真空泵两端端盖的表面温度是否正常；4、检查进气口与排气口的压力；5、用电流表检查电动机负载，如果功率增加过多就表示有异常现象。

The contents of daily inspection mainly include: 1. Whether the oil level line is too high or too low; 2. Whether there is enough cooling water flow; 3. Check whether the surface temperature of the end covers at both ends of the vacuum pump is normal; 4. Check the pressure of air inlet and exhaust port; 5. Check the motor load with an ammeter. If the power increases too much, it means that there is an abnormal phenomenon.

每日检查的基础上，每月检查包括：1、检查润滑油颜色，确定是否需要更换；2、检查油位，如果油位下降太快，则需要检查密封。

On the basis of daily inspection, monthly inspection includes: 1. Check the color of lubricating oil to determine whether it needs to be replaced; 2. Check the oil level. If the oil level drops too fast, check the seal.

每季度检查内容：1、检查冷却水流量以及颜色，定期清理水套和水管；2、检查并更换非驱动端端盖的润滑脂；3、检查并更换驱动端端盖内的润滑油。

Quarterly inspection contents: 1. Check the cooling water flow and color, and regularly clean the water jacket and water pipe; 2. Check and replace the grease of non drive end cover; 3. Check and replace the lubricating oil in the drive end cover.

每半年检查螺杆真空泵的进排气管道。

Check the intake and exhaust pipes of screw vacuum pump every six months.

每年例行检查内容：1、检查真空泵的密封；2、检查螺杆真空泵的接触面：螺杆与泵体。卸下真空泵的进气管道，检查螺杆与泵体的接触面。

Annual routine inspection contents: 1. Check the sealing of vacuum pump; 2. Check the contact surface of screw vacuum pump: screw and pump body. Remove the intake pipe of the vacuum pump and check the contact surface between the screw and the pump body.

看到这里相信你对螺杆式真空泵的例行检查有了一定的了解，另外与螺杆式压缩机类似，螺杆式干式真空泵的工作过程可分为吸气、压缩和排气三个过程。随着转子的旋转，每对相互啮合的齿相继完成相同的工作循环，现在以其中一对齿来说明。如果您还有其他关于螺杆式真空泵的问题不妨来电咨询，小编竭诚为您服务。

I believe you have a certain understanding of the routine inspection of screw vacuum pump. In addition, similar to screw compressor, the working process of screw dry vacuum pump can be divided into three processes: suction, compression and exhaust. With the rotation of the rotor, each pair of meshing teeth completes the same work cycle one after another. Now, one pair of teeth is used to illustrate. If you have other questions about screw vacuum pump, you may as well call us for advice. Xiaobian will serve you wholeheartedly.