Safety operation rules for rotary vane vacuum pump

Safety operation rules for rotary vane vacuum pump

I. purpose and scope of application of rotary vane vacuum pump

1. Vacuum pump is a basic equipment to pump out the gas in a specific sealed container and make the container obtain a certain degree of vacuum.

2. The vacuum pump is not suitable for pumping all kinds of gases with high oxygen content, toxic, explosive etched ferrous metal and chemical effect on vacuum oil, nor can it be used as compressor and delivery pump.

3. Vacuum pump is generally used at room temperature of 5-40 ℃ and relative humidity not higher than 90%.

 

II. Operating instructions of rotary vane vacuum pump

1. Check whether the power supply is connected, and start the vacuum pump motor after confirming the connection is correct.

2. Start 1-2 times intermittently, observe whether there is abnormal sound and special vibration during operation, and operate continuously only when there is no problem.

3. Check whether the cooling water pipe is smooth.

4. The air inlet of the pump shall be operated continuously in the open air for no more than three minutes to prevent the site from being polluted by fuel injection.

5. Pay attention to the position of the oil surface. Too much oil will cause poor start-up, oil return, oil injection and other adverse phenomena. Too little oil will not play the role of oil seal on the exhaust valve. There will be a large exhaust sound which will affect the vacuum degree. When the oil is insufficient, oil should be added through the oil filling hole, and the center of the oil injection pump oil standard is appropriate when the pump is stopped.

6. Vacuum pump oil of different types and brands shall not be mixed.

7. Open the valve on the intake nozzle of the pump, and the opening size depends on the specific situation.

8. When the pump is stopped, the valve on the air inlet nozzle shall be closed first. If the air vent valve is installed, the pump body shall be vented, and then the power supply shall be cut off.

9. Precautions

(1) always pay attention to the oil level;

(2) slowly open the valve after the pump is started;

(3) always pay attention to whether the pump operates normally, whether there is special sound, and whether the motor operates under overload;

(4) the cooling water shall not be interrupted;

(5) pay attention that the temperature rise of the pump does not exceed 40 ℃.

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industrial vacuum pumps,vacuum furnaces

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