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As the working medium of turbine speed-control systems in power plants, phosphate ester fire-resistant fluid (FRF) plays a vital role in the normal operation of steam turbines. During operation, the deterioration of FRF may result in an increase in acid value, a decrease in volume resistivity, and the formation of oil sludge, and the degree of decomposition and deterioration varies among different oils. The chemical composition of different kinds of FRF samples was analyzed, the deterioration process of different phosphate ester molecules was simulated, and their aging-resistance properties were tested. The results show that the performance of FRF with tris-(dimethylphenyl) phosphate as the main component is more stable than that of FRF with tert-butylphenyl phosphate as the main component. During the production of FRF, the content of dimethylphenyl in triaryl phosphate should be increased, and the content of phenyl and tert-butyl phenyl should be reduced.
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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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