First vacuum equipment

According to the first vacuum equipment, a vacuum pump is arranged to be a rotary vane pump, meanwhile, a filtering device with the good filtering effect and an automatic pollution discharging device with the high automation degree are arranged, and the automatic pollution discharging device can automatically remove impurities such as water and oil dirt flowing out of a pollution discharging opening formed in the filtering device; the labor cost is saved; the filtering device can filter moisture, oil and dust particles discharged from the first exhaust port of the exhaust screw to be relatively clean, the filtering effect is good, the service life is long, the filtering device is not prone to being blocked, and the maintenance frequency is very low. The vacuum pump is a rotary vane pump, water consumption is not needed, and pollution to the environment is avoided. 本发明公开了一种第一道真空设备，通过将真空泵设置成旋片泵，同时设置过滤效果较好的过滤装置以及设置自动化程度高的自动排污排污装置，自动排污排污装置可以自动化排除设置在过滤装置的排污口流出的水分及油污等杂质，节省了人工成本；过滤装置对排气螺杆的第一道排气口排出的水分、油、灰尘颗粒物能过滤得相对干净