3results about How to "Improve operation and maintenance" patented technology

The application discloses a movable pry-mounted non-powered mine tunnel antimony-containing water gushing treatment system and method, the system comprises a plurality of warehouse bodies arranged side by side, and the warehouse bodies are sequentially a buffer homogenizing warehouse, a sedimentation warehouse, an adsorption treatment warehouse and a clean water buffer warehouse; the warehouse bodies are relatively arranged in an up-down sliding mode and are fixedly connected through a connecting rod located at the top; the method comprises the following steps: S1, preparation work; S2, hoisting and positioning; and S3, continuous water treatment; the system is integrally arranged in a standard container pry-mounted module, can be quickly deployed to any water gushing point accessible by road through road transportation, is driven by gravity generated by natural terrain difference throughout the journey, does not need external power supply and is perfectly suitable for mine areas without power supply.

The application discloses a kind of emptying operation methods of pumped storage power station, belong to the technical field of water conservancy and hydropower engineering, can solve the problem that existing pumped storage power station upper and lower reservoir emptying is not synchronized, corresponding emergency and maintenance condition is difficult to realize fine management.The method comprises the following steps: S1, the minimum emptying flow of upper reservoir is determined according to the emptying requirement time of upper reservoir;S2, the emptying operation flow of upper reservoir is determined according to the minimum emptying flow of upper reservoir;S3, the design size of lower reservoir emptying structure and its minimum emptying operation flow are determined according to the emptying operation flow of upper reservoir, and the design size of lower reservoir emptying structure is adjusted according to the minimum emptying operation flow and the emptying operation flow of upper reservoir, to obtain the final size of lower reservoir emptying structure;S4, emergency emptying of upper reservoir is carried out by using unit, and emergency emptying of lower reservoir is carried out synchronously by using the final size of lower reservoir emptying structure.The application is used for the emptying design and operation of pumped storage power station.

The invention discloses a meter box topology identification method based on a high-speed broadband power line carrier technology. According to the method, a master station issues a ranging task to a concentrator, a carrier communication link is established with a plurality of terminal nodes through the concentrator, ranging data of the terminal nodes are collected, and signal strength data and signal-to-noise ratio data are received. According to background noise, normal noise, periodic impulse noise and sudden impulse noise existing in the low-voltage power line, noise analysis, frequency domain processing and filtering suppression are carried out on collected signals, so that effective data capable of reflecting communication link characteristics can be obtained. And after abnormal value detection and standardization processing are carried out on multiple rounds of measurement results, weights of different characteristics are determined based on correlation between communication characteristics and an actual topological relation, and a weighted linear regression model is constructed and used for predicting meter box affiliation of a terminal node or a relative position of the terminal node in a topology. And judging a topological structure of the terminal node according to a model output result, and verifying an identification effect through a model evaluation index.