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Can a pneumatic diaphragm pump be adjusted via frequency control? ? ? ? ? ?

2016-11-21View Original

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Can a pneumatic diaphragm pump be adjusted via frequency control? ? ? ? ? ?
Reply #22016-11-21
Variable frequency is used to control the motor, while pneumatic systems can only adjust the operation of the pump
Reply #32016-11-21
Control the air source: increasing the air supply rate speeds things up, while reducing it slows things down.
Reply #42016-11-21
That means that by adjusting the air volume, the flow rate of the pneumatic diaphragm pump can be controlled. So, by installing a flow meter at the outlet and linking it to an air control valve, can the flow rate of the pneumatic diaphragm pump be adjusted? ?
Reply #52016-11-21
Hehe, this is a interesting question. It can be adjusted by indirectly modifying the pressure of the air supply; the frequency of the air supply can be adjusted as well
Reply #62016-11-22
Actually, I’ve seen this situation many times before, but I didn’t think about it as thoroughly as the original poster did; I’m ashamed :D Since it’s a pneumatic pump, adjusting the gas flow rate can indeed be used to control the flow. I think your idea of interlocking is feasible.
Reply #72016-11-22
It’s difficult; for a compressible power source like air, it’s hard to precisely regulate the flow rate with an air control valve
Reply #82016-11-22
Try adjusting the air supply pressure; different supply pressures result in different output volumes. But ordinary flow meters seem unsuitable for the outlet piping of diaphragm pneumatic pumps. I’ve read in articles that a \"laminar flow\" flow meter can be used for pulsating flows, but I’m not sure what kind of flow meter this is.
Reply #92016-11-22
Just adjust the air source directly
Reply #102016-11-22
It’s a very cute question; frequency conversion is related to electrical control, while pneumatic diaphragm pumps have nothing to do with electrical control. The frequency conversion of pump motors involves adjusting the motor speed by changing the frequency, thereby controlling the flow rate. A pneumatic diaphragm pump controls the movement of the diaphragm using a gas source. It is possible to control the flow rate by using a solenoid valve to regulate the intake rhythm.

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