Dynamic vibration absorber, vibration absorption device and method for damping of nuclear power pipeline

• Main Authors: ZHAN MINMING, ZHU CHANGFAN, SHEN XIAOYAO, CHEN XINGWEN, LI JUAN, DING KAI, JI TENGFEI, ZOU JIANRONG, XIA SHUAN, LU QIANG, CAI YILIN
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention provides a dynamic vibration absorber, a vibration absorption device and a vibration absorption method for nuclear power pipeline vibration reduction. The dynamic vibration absorber comprises an outer frame, a guide rod is arranged on the inner side face of the outer frame, and a first combined disc spring, a mass block and a second combined disc spring are sequentially installed along the guide rod; the top surface of the outer frame is provided with a radial mounting hole, one side surface of the outer frame is provided with an axial mounting hole, and the outer frame is made of all-metal materials, has the advantages of convenience in mounting, high reliability, operability of in-service inspection and the like, and can meet the special requirements of nuclear power application environments; a plurality of dynamic vibration absorbers in the radial direction, the axial direction and different frequencies of the pipeline can be installed on the same supporting assembly of the vibration absorpti