How to measure and feed volatile materials such as propylene into the experimental setup
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Hello, experts. How should volatile materials in experimental setups be measured and fed in? There are three issues here: 1. Pump selection, as the flow rate may be only a few milliliters per minute. The outlet pressure of the pump needs to be 5-10 MPa. 2. How to handle the feeding of the raw material tank. 3. How to accurately measure the feed volume. I would appreciate your guidance.
This post was last edited by sifangok on 2017-4-12 at 12:39. A plunger metering pump can be considered; it provides accurate measurement, is suitable for volatile fluids, can achieve an outlet pressure of up to 50 MPa, is less prone to failure, and a gear metering pump is also an option to consider
Thank you for your reply, :) The plunger pump fails to deliver liquid; this might be due to vaporization during the suction process. It is necessary to increase the pressure in the raw material tank and address the back pressure at the outlet. Is there a simpler solution?
Gear pumps are not prone to problems with suction, but after checking the specifications of micro piston metering pumps, I found that their outlet pressure generally only reaches 5-7 MPa. If I’m not mistaken, the inlet of a plunger pump does not need to be pressurized; metering pumps generally have a self-priming function. It’s best to ask the manufacturer for specific details