Full
Outline
In order to study the safety design and intelligent design of multi-stage pipeline oil vertical transportation system in underground mines, the numerical relationship model between maximum thrust and single rod length in the installation process and the dynamic vibration analysis model of vertical oil pipeline with different section sizes and different lengths were established. The numerical model of water hammer effect and pressure relief transportation of oil transportation system was built, and the dynamic response characteristics of water hammer pressure under different oil flow and different valve closing time conditions were studied and analyzed. The results are as follows. Firstly, when the length of a single pipe is at a certain value, the installation thrust increases sharply with the increase of pipe diameter. Secondly, the pipe sand filling method can reduce the vibration of the main pipe caused by bubble excitation. Thirdly, reducing the oil flow or increasing the valve closing time can effectively reduce the water hammer pressure. At the same time, the intelligent design schemes of intelligent refueling technology, intelligent dispatching technology, intelligent monitoring technology, intelligent fire protection and fire automatic extinguishing technology are proposed, which plays an important role in the in-depth study of the safety intelligent design of pipeline oil vertical transportation system.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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