Real-time state evaluation and life cycle management and prediction system for hydraulic turbine runner

A technology of life cycle and real-time status, applied in the fields of mechanical equipment, hydropower, machine learning, etc., can solve complex and changeable problems that do not involve the gap safety assessment of runner stop rings, simulation and online structure finite element simulation technology is not yet feasible and other problems, to achieve the effect of reasonably arranging the maintenance cycle and reducing the maintenance workload

Active Publication Date: 2020-07-03
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent scheme has the following disadvantages: 1) The runner life evaluation only considers the measured dynamic stress, and there are many actual influencing factors, such as the hydraulic design of the unit's full channel, the inherent characteristics of the runner, the runner material, manufacturing process and residual stress, etc. ; 2) The indicators that affect the running health of the runner include cavitation and abrasion. This patent does not involve or introduce relevant evaluation parameters, such as the water quality information of the unit flow and the content of mud and sand; 3) The clearance of the runner stop ring is not involved security assessment
[0006]

Method used

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  • Real-time state evaluation and life cycle management and prediction system for hydraulic turbine runner
  • Real-time state evaluation and life cycle management and prediction system for hydraulic turbine runner
  • Real-time state evaluation and life cycle management and prediction system for hydraulic turbine runner

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Example Embodiment

[0041] Example 1

[0042] As the most basic implementation of the present invention, such as figure 1 , Discloses a real-time state assessment and life cycle management prediction system for a water turbine runner, which includes a data input terminal, a data processing unit and a data output terminal; the data input terminal includes a unit real-time operation data input terminal and runner inherent characteristic information data Input terminal.

[0043] Among them, the real-time operation data input terminal of the unit is connected with a number of real-time data monitoring units for monitoring the implementation operation data and hydrological environment data of the water turbine unit. That is, the real-time operation data input terminal of the unit transmits the collected important parameters to the system corresponding to the operating status And the real-time data of environmental changes, and the inherent characteristic information data input terminal of the runner is us...

Example Embodiment

[0046] Example 2

[0047] As a preferred implementation of the present invention, on the basis of the above-mentioned embodiment 1, further, specifically, the real-time operation data input terminal of the unit is connected with the working condition data and the status monitoring data during the operation of the unit and The real-time data monitoring module for the water quality, mud content and the PH value of the water quality of the unit; wherein the working condition data includes the water head, output, efficiency and tail water level; the state monitoring data includes the flow channel pressure, the full flow Channel pressure pulsation, unit vibration swing monitoring data, thrust force and guide bearing bush temperature data. The mud and sand content of the water quality of the said power station is determined according to the monthly statistical value for many years.

[0048] Further, the unit mechanical state data input from the data input terminal of the inherent charac...

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Abstract

The invention belongs to the technical field of state monitoring of hydraulic turbine generator units, and discloses a real-time operation state health evaluation and full life cycle management and prediction system for a hydraulic turbine runner. Real-time evaluation is conducted on the operation health state of the runner according to integrated information such as the inherent characteristic ofthe runner of a power plant set, manufacturing information of the runner, set mounting information, set real-time operation data, the set overflowing water quality and the content of muddy sand, information such as operation state information of the runner, the operation health degree of the runner, a real-time gap value of a leakproof ring of the runner, the deterioration degree and the fatiguelife of the runner, the predictive overhauling cycle of the runner, an operation evaluation report of the runner and set operation and maintenance optimization suggestions are digitally displayed on adisplay station in real time, and quantitative scientific decision support is provided for safe, stable and economic operation, reasonable overhauling and fault diagnosis of a hydroelectric generating set.

Description

technical field [0001] The patent of the invention belongs to the technical field of state monitoring and health assessment of hydroelectric generator sets, and specifically relates to a real-time state assessment and life cycle management prediction system for hydroturbine runners. Background technique [0002] The runner of the hydro-generator set is crucial to the safe, economical and stable operation of the entire unit. At present, many power stations have encountered problems such as runner wear and serious cavitation, runner blade cracks, and runner stop ring abrasion. Moreover, most hydroelectric units have been connected to the grid AGC, that is, automatic power generation control of the units. The input of AGC has caused major changes in the operation mode of hydroelectric units, that is, multiple units operate with partial load for a long time, frequent unit load adjustments, and large load fluctuations. Moreover, the adjustment speed is fast, the unit frequently c...

Claims

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Application Information

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IPC IPC(8): F03B11/00G06F30/23G06F30/27G06F30/28G06F30/17G06N3/02G06N20/00G06F113/08G06F119/04G06F119/14
CPCF03B11/008G06N3/02G06N20/00Y02E10/20Y02P70/50
Inventor 张猛郭靖文树洁
Owner DONGFANG ELECTRIC MACHINERY
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