Seeking help: Issue with ammonia injection volume at the top of the pressure reduction tower
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Help: How to control the ammonia injection amount at the top of the pressure relief tower? I have an ammonia tank and a diaphragm pump for injecting ammonia, but the top of the pressure reduction tower is under negative pressure. Even with a metering pump to regulate the flow, either too much ammonia is injected or no ammonia is injected at all; it’s difficult to control the amount properly. Has anyone encountered a similar problem? How was it resolved?
A high-quality metering pump is used for the pump, with a target pH value of 7-9 for the headwater as a reference
Metering pumps are used for the additives at the top of the tower; diaphragm pumps do not seem to be effective.
Diaphragm pumps are also a type of metering pump!
The flow rate is controlled by flow meters and control valves.
Just control the pH, isn’t that it? Can’t the control amount be used for control from 7 to 9?
It’s not wind power; it’s an electric metering pump.
It’s because the injection volume cannot be controlled due to the negative pressure at the top of the vacuum tower
Why inject directly at the tower top? All three of our injections are after the first stage vacuum pump