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In order to solve the corrosion problem of direct air cooling condensers, the independently developed dynamic corrosion simulation test device is used to simulate the actual operating conditions of the initial condensate, and the alkalizing agent and oxidant with low vapor-liquid distribution coefficient are selected for the flow accelerated corrosion test of carbon steel. The results show that, both alkalizing agent and oxidant can effectively inhibit the accelerated corrosion of direct air-cooled condenser. The rapid change of water flow direction has little effect on the accelerated corrosion rate of flow. Under the same conditions, the flow accelerated corrosion rate of carbon steel in oxidant environment is much lower than that in alkalizer environment. When oxidant is added to the direct air-cooled condenser for anticorrosion, the production cost of a single unit can be saved by 523 700 yuan per year.
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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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