What about the preparation before operation of water ring vacuum pump and insufficient negative pressure?

What preparations should be made before the operation of water ring vacuum pump

Some users do not pay attention to the relevant inspection preparations before officially starting the water ring vacuum pump, resulting in some problems in the use of the equipment. In fact, this problem can be avoided, that is, make preparations before operation.

1. Check that the voltage is normal and does not exceed the rated voltage (380V) ± 5%; The grounding wires of electrical switches and equipment are normal.
2. Check whether the components of the water ring vacuum pump are connected reliably.
3. Check whether the lubricating oil (grease) of each part is sufficient.
4. The turning gear shall be flexible without blocking and loosening.
5. The vacuum regulating valve shall be adjusted to an appropriate opening.
6. Open the water supply valve to fill the pump head of the water ring vacuum pump until the overflow pipe overflows.

The inspection before operation can find the possible problems of water ring vacuum pump in time, so as to avoid the trouble and loss caused by failure in use. Don’t be afraid of trouble and ignore it.

What if the negative pressure of water ring vacuum pump is insufficient?

During the use of water ring vacuum pump, the pressure plays an important role in its working efficiency and use effect. Too much or too little pressure can not make it achieve the expected use effect.

1. First of all, it is necessary to check whether the working fluid is not added or the drainage work is not done well, because the water ring pump depends on the working fluid for suction when it is used. Therefore, if there is insufficient negative pressure in the process of use, the problem of working fluid should be considered first.
2. Also, check whether the voltage of the equipment is normal. Sometimes, too low voltage will lead to too low speed, resulting in insufficient negative pressure.
3. Check whether the pipeline used for suction is blocked. If it is found at this time, it needs to be cleaned before using the water ring vacuum pump.
4. In addition, when the water ring vacuum pump is used, it is necessary to check whether the rotation direction is correct and whether the packing seal is seriously worn.
5. In addition, if the impeller is damaged by some impurities during use, the suction effect during operation is also very bad. Or the matching impeller is damaged, and the model of the new impeller replaced does not match when in use, which may lead to insufficient negative pressure.

Insufficient negative pressure will lead to poor suction efficiency of water ring vacuum pump, thus affecting normal use. Therefore, when the problem is found, the problem shall be investigated according to the above, and then the correct treatment shall be made.