Pulsation damper, also known as pulsation damper and pulsation buffer, is a common component used to eliminate pulsation in the pipeline system and is a matching accessory for metering dosing pumps.
The pulsation damper can smooth the pulsation of the pipeline and the water hammering of the system caused by the displacement pump such as the plunger pump and the diaphragm pump. It isolates the gas from the liquid in the pipeline by a corrosion-resistant partition, and smoothes the pulsation of the pipeline through the change of the volume of the gas chamber, so that the flow state of the liquid is close to the flow of laminar flow.
It can reduce or eliminate the influence of water hammer on the metering dosing pump system, protect the pipe elbow, reduce the impact of pressure fluctuations, and create a good working environment for the metering dosing pump.
The metering dosing pump has a pulsed flow rate. Adding a damper at the outlet is good for smoothing the flow rate and reducing the instantaneous current of the metering pump, so it is recommended to add it. But for the metering dosing pump with small flow and low pressure, the outlet damper can be omitted.
The pulsation damper reduces the acceleration of the medium to be measured and can reduce the head loss. Choosing the appropriate size of the pulsation damper can reduce the pulsation by 90% or more.
Summarize the role of the pulse damper for the metering dosing pump:
1. Avoid the excessive flow of the metering dosing pump and reduce the loss of inertia.
2. Improve the suction performance of the metering dosing pump and avoid the harm of water hammer to the system.
3. The peak value of flow rate fluctuations, to protect the pipeline system from the impact of pressure fluctuations.
4. Reduce cavitation, create a good working environment for metering dosing pumps and improve pump performance.
5. Allow the system of metering dosing pump to use a smaller pipe diameter and reduce the cost.
6. Used in conjunction with the back pressure wide to reduce the wear of the back pressure valve.
7. Reduce piping movement, reduce system noise, and create a continuous and stable flow for the system.
8. The energy consumption of the system reduces the hazard of water hammer when the pump is stopped.
Different types of metering dosing pumps need different pulse dampers.
First, determine the appropriate rated pressure, the rated pressure of the pulse damper should be greater than the pressure of the metering dosing pump system;
The second is to determine the appropriate volume. Under normal circumstances, the volume of the pulse damper for metering dosing pump is 22 times the single-stroke displacement of the pump. If you think of a better effect, it is recommended to be 26 times;
The third is to determine the material and type. The general materials are PVC, 304, 316, etc., and can also be customized according to requirements. The main types are diaphragm-type pulsation dampers and airbag pulsation dampers. The effects of these two dampers are basically the same. ,You can choose any one.
Pulsation dampers for metering pumps, namely pulsation dampers and pulsation buffers, are common components for pipeline pulsation and are also a supporting a matching accessory for metering dosing pumps. The above is some introduction about the pulsation damper. In actual operation, you can choose the right pulse damper according to your needs.
