Results 1 to 10 of about 92,806 (260)
Influencing Factors of biofilm nitrification in long-distance water pipeline
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The long-distance water transfer project alleviates the situation of water supply tension in various parts of China. In the process of raw water transportation, the nitrification reaction will be carried out by microorganisms due to the existence of a pipe wall biofilm, which converts ammonia nitrogen in water into nitrite ...
Hui Yang, Shuaige Qi, Yujie Yan
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Measurement + Control, 2022 Long-distance high-pressure oil and gas pipelines are threated by various external forces, such as earthquakes, landslides, and other third-party damages.
Liu Shucong, Wang Hongjun, Rui Li
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You-qi chuyun, 2021 Due to the corrosive perforation and third-party damage, multiple leakage accidents occurred to the long-distance oil and gas pipelines, for which on-site emergency repair was required, and further pipeline alignment should be performed before welding ...
Fangyuan LIU +3 more
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Study on the suspending mechanism of gangue particle in coal-based solid waste slurry
Alexandria Engineering JournalIn China's coal mine backfill mining projects, certain mines demonstrate an extensive filling distance that exceeds 3000 m. However, there are few researches concerning the theoretical underpinnings for slurry long-distance pipeline transportation ...
Tao Li +4 more
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Surge Tank Analysis for Water Hammer Remedy for Long Distance Pipeline
Diyala Journal of Engineering Sciences, 2018 Various protection methods can be used for protecting the pipeline system from the impact of water hammer. Which includes the use of special materials for supporting the pipeline and the installation of special devices such as surge tanks, relief valves,
Nisreen J. Rasheed , Qassem H. Jalut
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Calculation method for cutting quantity of long-distance pipeline butt joint
You-qi chuyun, 2022 During the laying of long-distance pipelines, pipe butt is always one of the construction difficulties faced by the field technicians, and accurately drawing the cutting trajectory is the key to improve the quality and efficiency of pipe butt.Therefore ...
Yukun LI +6 more
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Energies, 2018 For a long-distance pipeline, the seismic load is a four-dimensional space-time excitation that simultaneously changes with time and space. In this work, a novel random space-time seismic model is established for a long-distance pipeline, which uses the ...
Peng Zhang, Yihuan Wang, Guojin Qin
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Synthetic Analysis and Research of Pipeline Optical Cable Signal in Different Terrain
Guangtongxin yanjiu, 2022 Pipeline cable in southwest mountainous areas goes through many complex areas (mountains, rivers, tunnels, farmland, etc.). By geological deformation, man-made damage often leads to fiber core broken, and seriously affects the safety of pipeline ...
CAO Wen-chen +8 more
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You-qi chuyun, 2021 Due to the national requirements for keeping the surveying and mapping geographic information confidential, the sharing of long-distance pipeline coordinate data is always a difficulty for the application of informatization of the pipeline operators ...
Bao-long YANG +4 more
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Energy Science & Engineering, 2023 The transportation of hydrogen is a weak link in the large‐scale development of the hydrogen energy industry. Injecting hydrogen into the natural gas pipeline network for transportation is an efficient way to achieve the large‐scale, long‐distance, and ...
Shuangjie Yan +5 more
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