How to use the safe and efficient mining multistage pump?

Mine multistage pumps suitable for mines, factories and urban water supply and drainage, used to transport water without solid particles or liquid, physical and chemical properties similar to Yu Qingshui scope and area is very broad. Devices commonly used shaft seal packing seal, according to user needs can also adopt mechanical seal. Equipment operation direction from the motor end looked pump is clockwise. How to use the safe and efficient mining multistage pump? This is used at the beginning of many users often ask the question. First of all, we from the pump to introduce oneself: pump sealing is very good - water section, middle/water was still in combination with surface molybdenum disulfide seals, also has the gasket seal paper, tear open after reshipment seal must use raw materials, to prevent water from entering the bearings on both ends, "O" type of synthetic and hydrosphere sealing. Rotational part and fixed part of the pump by the sealing ring, between the guide vane and packing. Packing chamber zhongtong into a certain pressure of water, water seal and cooling effect.

In the process of running often should pay attention to the following:

1. Observe the ammeter, listen to sounds, determine whether normal operation;

2. Observe whether motor overload, it is strictly prohibited to motor current operation;

3. Observe the shaft seal leakage situation, and adjustment, to adjust the injected water, sometimes with continuous dropwise is preferred;

4. Check the oil ring sliding bearing rotation. The temperature of the rolling bearing should be less than 75 ℃;

5. Check the clearance between the two coupling, when in need to replace the balancing device;

6. Observe the equalizer pipe of the water temperature, when the water temperature rise quickly, should stop pump check whether the balance pipe is blocked;

7. Observe the pressure gauge, vacuum gauge, when both gage pressure is abnormal, should be timely find out the reason;

8. Observe the water level to prevent light;

9. When the water level low note two shaft seal will inhale into the pump;

10. Pay attention to the operation condition of the pump, cooling water conditions.

Should not have to pay attention to is multistage pump under the condition of the outlet valve full close for a long time; Work shouldn't hump in the performance curve. Should ensure feed line during the operation of the valve is fully open on the road. The starter valve closing time shoulds not be long. No more than 2 ~ 3 min, otherwise, cause vaporization temperature, can damage the pump.