During the operation of non-standard hydraulic station, system stability is directly related to the reliability and service life of the equipment, and the pipeline layout design, as an important part of the hydraulic station, has a profound impact on the system stability. Unreasonable pipeline layout may lead to problems such as excessive pressure loss, hydraulic shock, vibration and noise, and even cause system failure in severe cases. Therefore, in-depth research on the relationship between the pipeline layout design and system stability of non-standard hydraulic station is of great significance to improving the performance of hydraulic station.
The design of pipeline direction is a basic factor affecting system stability. If the pipeline layout is too tortuous and complicated, it will increase the flow resistance of hydraulic oil, increase pressure loss, and reduce the working efficiency of the system. At the same time, frequent sharp turns and excessively long pipelines will cause eddy currents in the flow of hydraulic oil, causing pressure fluctuations and affecting the stability of the system. Reasonable pipeline direction should be kept as straight as possible, reduce unnecessary bends, and allow hydraulic oil to flow smoothly. For example, when designing, it is preferred to choose elbows with large curvature radius instead of right-angle elbows, which can effectively reduce the flow resistance of oil, reduce pressure loss and eddy currents, and ensure the stability of system pressure.
The choice of pipe diameter is crucial to the stability of non-standard hydraulic station system. If the pipe diameter is too small, it will limit the flow of hydraulic oil, causing the system pressure to increase, which is easy to cause hydraulic shock; if the pipe diameter is too large, the oil flow rate will be too low, which will increase the pipeline cost and may cause the oil to be retained in the pipeline, causing problems such as oil temperature rise and impurity precipitation. The appropriate pipe diameter should be accurately calculated and selected according to the system's flow requirements, working pressure, and allowable pressure loss. For example, in a high-pressure, high-flow hydraulic system, choosing a larger pipe diameter can reduce the oil flow rate, reduce pressure loss and hydraulic shock; while in a low-pressure, low-flow system, the pipe diameter can be appropriately reduced to reduce costs and space occupancy, and ensure the stable operation of the system.
The fixing method and support structure of the pipeline also have a significant impact on the stability of the system. If the pipeline is not firmly fixed, the pipeline is prone to loosening, displacement, and even fatigue fracture under the impact and vibration generated by the flow of hydraulic oil, causing leakage and system failure. Reasonable fixing methods should be selected according to the pipe diameter, working pressure and vibration conditions of the pipeline, and appropriate pipe clamps, brackets and other fixing devices should be used, and ensure that they are firmly installed. At the same time, adding buffer materials, such as rubber pads, between the pipeline and the fixture can effectively absorb vibration energy, reduce vibration transmission, reduce system instability factors caused by vibration, and improve the reliability and service life of the pipeline.
The distance and arrangement between different pipelines in the hydraulic station will also affect the stability of the system. If the distance between the pipelines is too close, the vibration may be aggravated due to mutual interference, and it is also not conducive to the installation, maintenance and repair of the pipeline. In addition, if the layout of high-temperature pipelines and low-temperature pipelines, high-pressure pipelines and low-pressure pipelines is unreasonable, problems such as heat conduction and pressure interference may occur, affecting the normal operation of the system. Therefore, when designing the pipeline layout, the distance and arrangement order between the pipelines should be reasonably planned according to the functions and characteristics of the pipelines to avoid mutual interference. For example, the high-pressure pipeline and the low-pressure pipeline are arranged separately, the high-temperature pipeline and the low-temperature pipeline are kept at a certain distance, and insulation measures are taken to ensure that each pipeline operates independently and stably.
The installation process of the pipeline has a direct impact on the stability of the system. During the installation of the pipeline, if the welding quality is not up to standard, defects such as sand holes and cracks will appear in the pipeline, causing leakage problems; loose threaded connections will also cause oil leakage and pressure loss. In addition, the internal cleanliness of the pipeline is not enough, and residual impurities, iron filings, etc. will block the hydraulic components and affect the normal operation of the system. Therefore, strict and standardized installation process is the key to ensuring the stability of the system. During installation, it is necessary to ensure that the pipeline is firmly welded and well sealed, and the pipeline is strictly cleaned and purged to remove internal impurities. Pressure tests should be carried out according to design requirements to ensure that the pipeline is leak-free and unblocked, laying the foundation for the stable operation of the system.
With the continuous development of industrial technology, the pipeline layout design of non-standard hydraulic station is also developing in the direction of intelligence and modularization. By introducing computer-aided design (CAD) and computer fluid dynamics (CFD) simulation technology, the pipeline layout can be simulated and analyzed in the design stage, the design scheme can be optimized in advance, and the accuracy and reliability of the design can be improved. The modular pipeline layout design facilitates the installation, disassembly and maintenance of the pipeline, reducing the system maintenance cost and downtime. In the future, with the continuous application of new materials and new technologies, the pipeline layout design of non-standard hydraulic stations will pay more attention to energy saving, environmental protection, high efficiency and stability, providing stronger support for the development of hydraulic systems.
