Spring damper control installation and suspension spring damper assembly
Spring damper is a vibration control installation sensitive to displacement. Spring pneumatic butterfly valves are mainly used for anti vibration of pipelines and equipment in nuclear power plants, thermal power plants, chemical plants, steel plants, etc. It is often used to control fluid vibration excitation (such as fluid pulsation, two-phase flow, high-speed airflow slight wind vibration, etc.). Spring pneumatic butterfly valve is a spring pre compressed pneumatic butterfly valve with damping, initial force stiffness and spring to reduce or eliminate other causes caused by medium activity, air duct, water hammer (or hammer) and seismic periodic vibration or instantaneous impact. It can improve the natural frequency of the impact pneumatic butterfly valve with the suspension spring of the vibrating tube, The interference caused by the forced vibration frequency of the pipeline can prevent the resonance phenomenon of the pipeline and reduce the additional stress caused by the pipeline vibration. The specification of damping spring depends on the selection of anti vibration force to avoid pipeline vibration. If the vibration force calculated by pipeline dynamic analysis can be based on the rigidity of the pipeline and the period of the external pipeline or influence the quality, the spring preloading with positive initial force shall be selected according to the accurate calculation of the damping spring specification. Otherwise, the size of the damping spring can be selected according to the nominal diameter of the pipe. When the pneumatic butterfly valve extends, the wheel is far away from the body, and the pneumatic butterfly valve extends. At this time, the piston of the pneumatic butterfly valve moves upward. The oil pressure in the upper chamber of the piston rises, the circulation valve closes, and the oil in the upper chamber opens the extension valve and enters the lower chamber. The shock absorber is the installation that changes the interference force of the vibration source or the transmission characteristics of the system to reduce vibration. The cylindrical shock absorber of is widely used in automobile suspension systems. It can damp the contraction and extension travel. It is called a two-way interactive pneumatic butterfly valve, and uses new types of shock absorbers, including gas filled shock absorbers and resistance adjustable shock absorbers. The working principle of the bidirectional cylinder shock absorber is discussed. When the stroke is tightened, the wheel is close to the body, the pneumatic butterfly valve is tightened, and the piston moves down on the pneumatic butterfly valve. The volume of the lower chamber of the piston decreases, the oil pressure rises, and the fluid flows through the chamber above the piston. The upper chamber is partially occupied by the piston rod, so the volume of the upper chamber is smaller than that of the lower chamber. A part of the oil pushes the shrink valve back onto the oil tank. These valves save oil and form the damping force of the compressed suspension. The structure of the pneumatic butterfly valve is a piston rod inserted into the cylinder, which is filled with oil. The throttle valve has a throttle valve on the piston, so that the oil in two parts of the space separated from the piston can supplement each other. Damping force is generated when viscous fluid passes through the orifice. The smaller the orifice, the greater the damping force, the greater the oil viscosity, and the greater the damping force. If the size of the throttle valve is constant, the damping will affect the absorption of the pneumatic butterfly valve when it works very fast. Therefore, set up a disc valve spring at the outlet hole. When the pressure changes, the valve opens, the orifice opening becomes larger, and the damping is smaller. Since the piston is bidirectional, there are disc spring valves on both sides of the piston, which are called contraction valves and extension valves.
Introduced the damping effect of damping spring shock absorber
What are the characteristics of a damping spring damper? There are three methods for the data of shock absorber spring: ordinary cast iron, nodular cast iron and nodular cast iron. After heat treatment, the damper spring damper produced by these three data after heat treatment is little affected by climate. The special design structure of the damping spring damper can adjust the different heights according to the practical needs. Moreover, it is small in shape and high in quality. It can be conveniently installed in various machines to achieve the purpose of vibration reduction. The air damping spring shock absorber has a wide load range, strong adaptability to active and passive vibration isolation, and obvious effect. The air damping spring shock absorber is a universal shock isolation product for vibration isolation and noise reduction, vibration control pollution, environmental maintenance, and ideal damping. The springs in the shock absorber are subject to heat treatment, and rust prevention, paint baking and other processes are available to ensure quality. This kind of shock absorber has obvious effect in eliminating the vibration of mechanical mechanism. Its bottom surface is equipped with anti-skid rubber. The shock absorption spring shock absorber has advantages in terms of device and safety. The damping spring shock absorber has strong compliance to work, and can work normally even at minus 40 degrees or 110 degrees above zero. This is the working state that ordinary pneumatic butterfly valves cannot reach. Both positive and negative vibration isolation, impact and vibration have very significant effects, and effective sound solid barrier. It has achieved ideal results in vibration reduction, noise reduction, vibration pollution conditioning and environmental maintenance.

How to install corrugated pneumatic butterfly valve?
Stainless steel pneumatic butterfly valve is often used to stop compensation, vibration isolation and noise reduction in practical engineering, which can achieve good results. Because of its above functions, it is more and more widely used in engineering. However, there are also some problems in the application. The basic reason for these problems is that the model selection or device is not suitable. The so-called model selection means that the drift diameter, connection mode, working pressure, temperature correction, minimum bending radius and the length of pneumatic butterfly valve must be selected appropriately, otherwise the pneumatic butterfly valve may fail early and cause serious personal and equipment accidents. The regular pressure in the model is the design pressure of the product, which should not be less than the working pressure, but should not be too high. Otherwise, although the pressure of the hose can be improved, the bending life will be greatly reduced. According to the analysis of many previous problems, most of them are due to fatigue, and few can be lacking due to pressure.
The load conditions and devices of stainless steel pneumatic butterfly valves in application are also matters that must be paid attention to. In this regard, the minimum bending radius of bellows is a particularly critical parameter in engineering applications, which will directly affect the service life of hoses. The working conditions in practical application are various, and the application conditions are also very complex. Therefore, it is very difficult to give an accurate design of bending radius with strong versatility through theoretical calculation. The bellows of the pneumatic butterfly valve is made of chromium nickel austenitic stainless steel. Pay attention to avoid the pitting corrosion of nitrogen ions and the corrosive damage of dilute sulfuric acid and dilute nitric acid during operation. For the equipment with metal in the device, after the hydrostatic test of the pipeline system is stopped, the impact of rust blocks and the accumulation of sediment containing chloride ions should be avoided to form corrosion and mechanical damage. The pneumatic butterfly valve in the device shall be protected from splashes and mechanical damage during welding, or leakage will occur.
The airtight pipe system shall strictly abide by the safe operation procedures to avoid hose pulling off or bursting due to overpressure caused by improper operation or other factors. The device shall be used in strict accordance with the correct method. Our company is a professional manufacturer of large bellows compensator. It can manufacture special compensators for steel, power, cement, heating and other industries for users.