Roots rotary vane vacuum unit for laser welding vacuum pump system

The roots rotary vane vacuum unit applied in the laser welding vacuum pump system solves the problems such as the vacuum degree of the laser welding equipment can not meet the requirements, the machine can not work, and the vacuum pump jitter is large. The pumping time is shortened by 50% and the cost is saved.

 

Roots rotary vane vacuum unit of application advantages:

1. High vacuum, low noise, small size, beautiful appearance, simple structure, quiet and environmental protection, long service life and easy maintenance;
2. Automatically adjust the pump speed to prevent motor overload and overheating;
3. The pumping time is shortened by 50%, completely oil-free and cost saving;
4. Low operating pressure and high reliability;
5. It is easy to use. The gas ballast valve is adjusted in three gears, and the working mode can be selectively switched. It can be operated at any time, including the operation state of the vacuum pump.

The application advantages of roots rotary vane vacuum unit solve the problems such as the vacuum degree of laser welding equipment can not meet the requirements, the machine can not work, large vacuum pump jitter and so on.

Share the roots rotary vane pump vacuum unit of performance characteristics

Roots rotary vane pump vacuum unit is a vacuum unit composed of ordinary roots pump as the main pump and slide valve vacuum pump as the front pump in series. The automatic opening and closing of roots pump slide valve pump and automatic overload protection are realized through vacuum relay or electric contact pressure gauge. The whole unit is installed on a rack, equipped with pipes, valves, electrical operation control box and cooling water pipe system. The unit is compact and easy to use.

According to the size and limit pressure of the evacuated system, the nominal pumping speed ratio between the pumps of the vacuum unit is between 4:1 and 10:1. The former is more suitable for large vacuum system and working under low pressure inlet pressure or limit vacuum for a long time. In order to prevent oil return when the slide valve pump is stopped, an electromagnetic charging valve is installed on the inlet pipe of the front stage, and its action is linked with the motor of the front stage pump. When the slide valve pump stops, it charges the pump port to ensure that the vacuum oil in the slide valve pump returns to the oil tank and prevent the vacuum system from being polluted by vacuum oil.

The excellent performance of roots rotary vane pump vacuum unit is mainly reflected in low vibration, low noise and high extraction efficiency when the atmospheric pressure reaches 100 Pa inlet pressure; Due to the use of high-pressure oil pump for forced lubrication, even if it operates for a long time under high inlet pressure or even atmospheric pressure, it can ensure that the slide valve vacuum pump has reliable working performance, which is a characteristic that other similar products in China do not have. Due to many advantages, the unit has good extraction efficiency when the atmospheric pressure reaches 10 Pa inlet pressure.

Performance characteristics

1. Roots rotary vane pump vacuum unit series is a series assembled vacuum unit with roots pump as the main pump and slide valve pump as the front stage pump. The unit can be used to extract air or other gases without solid particles and no corrosion to metals.
2. In addition to the characteristics of general roots vacuum unit, because the unit adopts slide valve pump as the front stage pump, it saves energy and has high work efficiency.

Roots rotary vane pump vacuum unit not only has high vacuum degree, but also has high pumping speed; It is not only convenient and reliable to use, but also can ensure the product quality to the greatest extent.

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