The authors connect steel double-wall bellows compensator connection steel double wall bellows compensator: admin Updated: August 9, 2016 I believe Installation of steel double-wall corrugated pipe construction team must clear connection Bellows compensators are often used in bellows. It is widely used in many industries, and in addition to good compensation, high reliability is the main reason. Its reliability is ensured through many links such as design, manufacturing, installation, operation management, etc. Any loss of control in one link will lead to the reduction or even failure of the life of the compensator.
The design of steel double-wall corrugated pipe mainly considers three factors: compressive strength, stability and fatigue performance. From many years of application practice and bellows failure analysis, it is found that the calculation and evaluation methods for stability given in the standard are not comprehensive enough, and the fatigue life only gives a relatively thick limit range (average fatigue life is 103-105). Be applicable). Sometimes a product that fully meets the standard requirements will have some problems in actual use. Excessive deformation of the bellows not only affects its stability, but also provides favorable environmental conditions for stress corrosion. The fatigue life of the bellows compensator and the compensation amount of the integrated stress bellows depend on its fatigue life. The higher the fatigue life, the smaller the single wave compensation amount of the metal bellows. In order to reduce the cost and increase the single-wave compensation amount, some manufacturers reduce the allowable fatigue life of the bellows compensator to a very low level, which causes the corrugated tube caused by the displacement to have a large bending stress in the afternoon, and the comprehensive stress is very high. The stability of the bellows compensator is reduced. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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