Function of butterfly valve shock absorber device on water pump
In fact, no matter where the damper is installed, the butterfly valve damper plays the role of vibration reduction and sound insulation, but what kind of damper should be selected in detail to achieve the best vibration reduction effect, which depends on which mechanical equipment is installed, and even the model of mechanical equipment.
1. Selection of pump butterfly valve shock absorber style:
Self standing butterfly valve shock absorber is commonly used, which has the advantages of simple structure and low cost; The butterfly valve is exposed to the outside, which is convenient to check the status of the butterfly valve at any time. The butterfly valve that needs to be replaced should be disposed in advance to prevent the sudden settlement of the pump, equipment damage and pipeline breakage when the butterfly valve is excessively corroded and damaged.
2. Selection of butterfly valve:
The general damper manufacturers prefer to use butterfly valves to meet the following requirements: the diameter of the butterfly valve should not be less than 0.8 times of its height under rated load; The butterfly valve must have a certain additional stroke, and the vortex flowmeter shall be at least equal to 50% of the rated static deflection; The degree and rigidity of the butterfly valve shall be at least 100% of the rigidity to ensure the stability of the shock absorber.
3. Selection of deflection of butterfly valve damper:
Generally, the rated deflection of the butterfly valve damper provided by the damper manufacturer is generally 25MM, which can be equivalent to the vibration isolation of the pump at 650 rpm. When the rotating speed is lower than 650, it is recommended to use butterfly valve damper with deflection below 40.
It can be said that different pump models have different requirements for the butterfly valve damper, so that the working vibration frequency of the pump is also related. Choosing the corresponding model can really achieve the vibration reduction effect required by the pump.