The reason why the water ring vacuum pump suction capacity is reduced


Users who have used water ring vacuum pump know that the vacuum degree of the machine should be within a certain range of values during the use of the machine, and the vacuum degree has a great relationship with the suction capacity, too high or too low suction capacity will have a bad impact on the equipment. However, sometimes we will find that the suction capacity of the machine is slowly decreasing, which directly causes the change of vacuum degree, thus affecting the normal operation efficiency of the machine. Then why does the water ring vacuum pump appear the phenomenon that the suction ability decreases? Today xiaobian with you to understand the specific.
1. If the suction area of the water ring vacuum pump is in the state of negative pressure, and the temperature of the working fluid is higher than the saturation temperature corresponding to the negative pressure of the suction area, the water will vaporize, making the vacuum degree in the pump lower and directly affecting the suction capacity.
2. A certain level of liquid should be maintained in the soda water separator. If the liquid level is too high, it will be difficult to separate soda water and exhaust is not free.
3. Mechanical failure:
(1) sealing effect of the axial end: the water ring vacuum pump achieves the sealing effect through the packing at the axial end, so as to ensure the pumping capacity of the pump. If the packing number at the axial end is small or the packing pressure is insufficient, air will leak at the axial end, affecting the suction capacity of the vacuum pump and reducing the suction capacity.
(2) sealing effect of valve disc: the valve disc fracture on one side of the vacuum pump causes the temperature of the air inlet pipeline on this side to be lower than that on the other side, accompanied by an increase in pump body vibration and shaft power. When both sides of the valve disc fracture, the water ring vacuum pump will drop sharply, and the vibration and noise will increase and the power consumption will increase.
When the water ring vacuum pump appears similar to the suction capacity of the problem, we must first stop to find the cause and look for measures to actively solve.

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