Use CasesInjection proportional to flow rate in a ballast water management system
Water treatment device manufacturer
Customer's Needs and Problems
We want to inject chemicals into seawater in the ship’s built-in ballast water management system.
Disinfectant (sodium hypochlorite) is injected proportional to flow rate and neutralizing reducing agent (sodium sulfite) is injected proportional to concentration.
- A high level of reliability is required in order to strictly adhere to the discharge standards prescribed by treaties.
- The treated volume fluctuates greatly, so we would like to have a large control range for the chemical injection amount.
- After treatment, the water is discharged directly into the sea, so the water must be treated completely.
- The space on the ship is limited, so we want the device to be compact.
- To reduce the maintenance load, we want to make the piping sturdy and simple.
We suggested that the customer use a Smoothflow Pump, and they agreed to this proposal.
- Because of the continuous, constant flow with no pulsation, the amount to inject can be measured and controlled with a flow meter.
- It is now possible to support a wide range of control at 1:60.
- Mixing and treatment are performed inside a pipe without having to install a stirring tank, which makes the device compact.
- Because there is no pulsation, the piping diameter can be reduced.
- Because there are no piping vibrations, the system is sturdy. Also, accessories such as an air chamber are unnecessary, which has reduced the maintenance load.