The suspended butterfly valve damper can effectively control the vibration and swing of various frequencies, but it limits the normal thermal displacement of the pipeline to a certain extent. The additional force generated by the electric butterfly valve of the butterfly valve on the pipeline shall be fully considered in the design.
The suspended butterfly valve damper is a vibration control device that is sensitive to displacement. The suspended butterfly valve damper is mainly applicable to anti vibration of pipelines and equipment in nuclear power plants, thermal power plants, chemical plants, steel plants, etc. It is often used to control the vibration of pipeline system caused by fluid vibration excitation (such as fluid pulsation, two-phase flow, high-speed flow, wind vibration, etc.). Anti vibration of pipelines and equipment in nuclear power plants, thermal power plants, chemical plants, steel plants, etc. It is often used to control the vibration of pipeline system caused by fluid vibration excitation (such as fluid pulsation, two-phase flow, high-speed flow, wind vibration, etc.).
The manufacturer of the suspended butterfly valve damper can effectively control the vibration and swing of various frequencies, but to a certain extent, it limits the normal thermal displacement of the pipeline. The additional force generated by the suspended butterfly valve damper on the pipeline shall be fully considered in the design.
Firstly, the butterfly valve shall meet the following conditions: the radius of the butterfly valve shall be four times greater than the zero point of its height under the rated load; The butterfly valve shall have a certain additional stroke, at least equal to 50% of the rated static deflection; The number of butterfly valve coils shall not be too small, generally not less than six; The butterfly valve manufactured in this way can ensure that the horizontal rigidity of the shock absorber is enough so that the equipment is stable and not prone to toppling, the elasticity is durable, and the lasting shock absorption capacity is guaranteed. However, the price of the suspended butterfly valve shock absorber is often higher.
Model selection: the compression capacity of the butterfly valve after the weight of the pressure bearing pump of the general suspended butterfly valve damper should be more than 20 mm, not more than the rated compression capacity of the electric butterfly valve, so as to ensure the best vibration isolation effect of the damper.
What needs to be mentioned is that a hanging butterfly valve shock absorber is popular on the market at present. It completely hides the butterfly valve inside the shell, and the state of the butterfly valve cannot be seen directly outside, which is a bit incorrect! Because after using this type of valve for a period of time, if the butterfly valve is seriously rusted, the manager cannot detect and replace it in time, which may lead to the terrible consequences of butterfly valve breaking, water pump sinking and pipeline breaking. Although the price of this suspended butterfly valve damper is slightly lower, it should not be used as far as possible.