Hydraulic damper also known as oil damper, it realizes the damping effect through the inertial force of the fluid. The fluid flow rate passing through unit time is the key factor to change the output of the damper. Oil damper is the ideal damping device used for slowing down moving weights.
The oil damper controls the movement of the piston in the hydraulic cylinder by means of a valve with a special structure, so as to restrain the structure, equipment or pipeline of the installation node from being affected by periodic loads and occasional impact loads. The main parts and components of the oil damper are: hydraulic cylinder, piston rod, piston, front and rear cylinder heads, compensation oil tank and valve components.
Oil damper is suitable for preventing damage from earthquakes, wind loads, water hammer, steam hammer, safety valve exhaust, fluid transients, etc. Oil dampers, also known as hydraulic dampers, are widely used in nuclear power, thermal power, petrochemical, steel, military, civil engineering and other fields. According to the purpose and function of the product, oil dampers are divided into speed locking devices and viscous dampers in the field of civil structure and bridge engineering.
According to whether set the compensation oil tank, the structure type of common oil damper is divided into single rod with compensation oil tank structure and double rod structure.There are many types of hydraulic dampers, according to the direction of damping is divided into one-way damping (also divided into compression damping and tensile damping), two-way damping.