Selection overview:
1. Material: could have resistance to sulfuric acid material there are many, but I suggest the material or fluorine plastic (PTFE /F46), because the material not only has excellent corrosion resistance, the sealing and mechanical strength also process significantly. In order to ensure the safety and long-term in the process of transporting concentrated sulfuric acid. So the determination of fluorine plastic as the material of the concentrated sulfuric acid pump.
2. The pump type: Transport accounted for 1.84 high proportion of concentrated sulfuric acid obviously magnetic drive pump is not an ideal choice, because magnetic pump magnetic torque is not up to the requirements, is likely to lead to "demagnetization" or "warming up" and other undesirable phenomena (unless the magnetic coupling for high magnetic properties of rare earth magnetic cylinder ", but it also increases the cost of the pump). Therefore, I suggest that built the selection of centrifugal pump,
3. Choice model: according to the national standard centrifugal pump performance parameter table, select the model is: IHF50-32-125
4. The motor power problem: because of the concentrated sulfuric acid accounted for 1.84, we can according to the actual use of a simple formula to calculate the pump shaft power of what is, the actual use of shaft power = (clean water test) shaft power * proportion (Note: clean water test of shaft power general in the manufacturer's instructions and sample selection have)Therefore, it can be calculated that the required motor power of the pump at least 1.9 x 1.84=3.496, so the motor power should be selected as: 4KW
5. Machine sealing: the original machine can not be ignored, but the case mentioned in the medium containing 1% of the fine particles, so the machine to select the wear resistance of mechanical sealing - hard alloy sealing machine.
