Abstract
The causes of low-frequency noise in high-rise building pipelines are studied. Sources of increased vibration of pipeline systems are identified. The analysis of methods of damping increased vibrations of pipelines is conducted. A description of the pipeline support structures used in the field of building construction and special anti-vibration supports is given. The advantages and disadvantages of the designs of anti-vibration supports of pipeline systems are identified. A method for improving the existing anti-vibration support consisting of all-metal elastic-damping elements pressed from spirals of wire is proposed. An anti-vibration support, consisting of a body and sealed capsules filled with a damping fluid, was developed. The design of the anti-vibration support, which allows adapting to the vibration mode due to the displacement of the pipeline relative to the support body and the redistribution of the damping fluid pressure in the capsules, is presented. The effectiveness of the proposed design support was confirmed experimentally.
Highlights
IntroductionThe source of increased vibration, in most cases, is low-frequency pressure pulsations of the fluid, which leads to accelerated destruction of piping systems, equipment and creates low-frequency noise, which has a negative impact on the person
A description of the pipeline support structures used in the field of building construction and special anti-vibration supports is given
The design of the anti-vibration support, which allows adapting to the vibration mode due to the displacement of the pipeline relative to the support body and the redistribution of the damping fluid pressure in the capsules, is presented
Summary
The source of increased vibration, in most cases, is low-frequency pressure pulsations of the fluid, which leads to accelerated destruction of piping systems, equipment and creates low-frequency noise, which has a negative impact on the person. Methods to reduce vibration of pipelines require comprehensive study [1]. The main causes of the occurrence of fluid pulsations are disturbances of a hydropercussion nature that occur when starting and stopping pump units, opening and closing shut-off and control valves. The causes of increased vibrations cannot be completely eliminated; it is necessary to develop methods for reducing the vibration of piping systems. Many researchers pay special attention to pipeline supports and their location
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