The electric butterfly valve is an elastic element connecting the equipment and the foundation to eliminate and reduce the vibration force transmitted from the equipment to the foundation and the vibration transmitted from the foundation to the equipment.
An elastic support that isolates the system from the steady foundation. When the excitation frequency is lower than the natural frequency of the mass (equipment) butterfly valve system, the electric butterfly valve does not play the role of vibration isolation; When the excitation frequency is close to the natural frequency, the vibration will be amplified; Only when the excitation frequency is greater than the square root times of the natural frequency, the electric butterfly valve has the effect of vibration reduction. Generally, the excitation frequency is required to be 2~3 times greater than the natural frequency in order to obtain good vibration isolation effect.
Specific forms include: steel butterfly valve electric butterfly valve, electric butterfly valve, air butterfly valve, damping pad, metal electric butterfly valve and various composite damping devices.
Appropriate equipment support shall be provided during use. The selection of model and quantity shall not only ensure that it can bear the dynamic load of equipment, but also maintain a small vibration transmission coefficient (ratio of transmission force to interference force). When designing and applying the electric butterfly valve, the following factors must be considered: (1) It can provide the required damping amount; (2) Be able to bear the specified load; (3) Be able to withstand the change of temperature and other environmental conditions (temperature, corrosive fluid, etc.); (4) It has certain damping characteristics; (5) Meet the requirements for the weight and volume of the electric butterfly valve for the equipment using the electric butterfly valve.