Selection of equipment for unloading 98% concentrated sulfuric acid from trucks
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The pump originally used was a magnetic pump, which had a high failure rate; it is planned to replace it with a canned motor pump. I would like to ask whether such a pump can operate in situations where there is some gas present during unloading How to make a selection, and what are the things to keep in mind? Outlet pressure: 0.6 MpaG, flow rate: 14.5, head: 60 m
This post was last edited by Clouds over the desert on 2018-11-21 at 13:45. If there is vapor formation during unloading, the centrifugal pump will not function properly either; you can try installing a self-priming tank (or buffer tank) in front of the pump. The size of this tank should be determined based on the pump’s flow rate. I hope this helps you :)
Is the inlet under negative pressure? How can the outlet pressure of a sulfuric acid pump with a head of 60 meters be 0.6 MPa?
Either the parameters provided are incorrect, or gas-liquid mixing is occurring, in which case the normal pump theory is no longer applicable
The entrance is for road tankers, at atmospheric pressure
The data must be wrong; Yang Cheng with a 60m pipe shouldn’t reach a gauge pressure of 0.6 MPa. Ignore Yang Cheng at 60m. How to choose a model
Pneumatic diaphragm pump with dual diaphragms and alarm function
Regular diaphragm pumps are fine; material 316 will work
1. Shielded pumps are not suitable, as the shafts/bearings cannot withstand idling. 2. Existing magnetic pumps can be equipped with an anti-idling protector to prevent failures caused by idling. The price is very low, less than 3,000 yuan
If flow head is available, simply find a sample reference curve from a manufacturer to select the appropriate model； As for later on, if there is vapor present, try to close the outlet valve accordingly to avoid damage; choose a pump with better cavitation resistance!