subject: Elastic Elements In The Role Of Mechanical Seals [print this page] Elastic components of mechanical seals are there? What are the characteristics of all?
Sealed by the end of the closing force composed of two factors, namely, elastic force and the media pressure. Medium pressure, large and small with the mechanical seals of different types (such as balanced and unbalanced seal) quite different. Whatever the conditions, the elastic force is always essential, especially in the medium pressure is small, the closure force is mainly constituted by the elastic force. Elastic force currently applied methods, mainly with a variety of spring and the bellows, in addition to magnetic force can also be used to achieve. Spring is a common machine parts, manufacture and easy to install, low price, adaptability, so Mechanical Seals has been widely used Zuo Tanxingyuanjian. Mechanical seal spring force a single, fully in the "compressed" state. Wire cross-section view from the spring, mostly round, but also rectangular; profile to distinguish from the spring, there are cylindrical helical springs, conical spiral springs, disc springs and wave, the first two spring manufacturing and installation easy , but requires a larger axial size sealed box, then two, by contrast, used the occasion in the axial size smaller. In addition, there are dual function of spring, in addition to the functions imposed by elastic force, but also transfer torque, and the circle hook ring spring and spring have this feature. Bellows with three functions could be called the elastic component, set stretch, torque and sealed in one pass, so this mechanical seals there is an upward trend.
In the field of mechanical mechanical sealss using what calculations?
The use of on-site, only the actual, concrete mechanical seals, its design parameters and conditions of use are not. Used only to provide a range of manufacturers, and some do not even use the scope. Therefore, the need for mechanical seals combined accounted for the specific conditions of use. First, we must check all parts of the material mechanical seal is required to adapt to working conditions. For example, the corrosion resistance of various parts, seal faces and the supporting ring of material is appropriate and so on, on this basis have the necessary accounting. Then check the size of ministries, especially the seal faces and the inner diameter of sleeve diameter; calculate the average speed of mechanical seals faces; calculation of load factor; actual measurements and calculate the elastic force of the spring spring pressure; calculated pressure and so on than face.
