Under high-frequency vibration conditions, hydraulic pipelines face many challenges, and ensuring their reliability is the key to maintaining the normal operation of hydraulic systems.
First, the material selection of the pipeline is crucial. Pipes with high toughness and fatigue resistance should be selected, such as seamless steel pipes or high-performance synthetic rubber hoses. Seamless steel pipes have high strength and can withstand greater pressure and vibration shock. For parts that require a certain degree of flexibility, synthetic rubber hoses can effectively absorb vibration energy. For example, in the hydraulic system of construction machinery, rubber hoses are used near the active joints to adapt to the frequent movements of mechanical parts and avoid pipeline rupture due to vibration.
Secondly, reasonable pipeline layout is the key. Avoid sharp bends and twists in the pipeline and try to make the pipeline run smoothly. When designing the layout, use natural bends to absorb some vibrations and reduce the direct effect of vibration on the pipeline. At the same time, ensure that the pipeline has sufficient support and fixation, set pipe clamps at a certain distance, and firmly fix the pipeline to the stable structure of the equipment. The material of the pipe clamp should have good shock absorption performance, such as a pipe clamp with rubber pads, which can buffer the energy transmitted to the pipeline by vibration.
The reliability of the connection parts should not be ignored. When connecting the pipeline, use high-quality joints and seals. For example, use threaded joints with anti-loosening function to prevent the joints from loosening during vibration by increasing the friction of the threads or using locking nuts. The seals should be made of wear-resistant and anti-aging materials, such as fluororubber seals, to ensure the sealing of the pipeline connection under high-frequency vibration and prevent hydraulic oil leakage.
In order to reduce the impact of vibration on the pipeline, shock-absorbing devices can also be used. For example, hydraulic dampers or vibration isolators are installed in the pipeline, which can convert vibration energy into heat energy or consume elastic potential energy. These devices are selected according to different vibration frequencies and amplitudes to accurately suppress the vibration of the pipeline.
In addition, regular inspection and maintenance of hydraulic pipelines are essential. Through visual inspection, pressure testing and other means, problems such as cracks, wear on the pipeline surface and looseness of the connection parts can be discovered in time. For small problems found, repair or replace damaged parts in time to prevent the problem from further deteriorating.
It is also important to conduct vibration analysis and simulation during the system design stage. Computer software is used to simulate the vibration of the hydraulic system during operation, analyze the stress distribution and vibration amplitude of the pipeline, optimize the design and layout of the pipeline based on the analysis results, and ensure the reliability of the hydraulic pipeline under high-frequency vibration conditions from the source.
Finally, operators are trained to understand the hazards of high-frequency vibration to the hydraulic pipeline and the corresponding preventive measures. During the operation of the equipment, operators can detect abnormal vibration in time and take correct measures, such as shutdown inspection, to ensure the safe and reliable operation of the hydraulic pipeline.
