A system and method for on-line monitoring and analysis of steam turbine oil for nuclear power

A technology for steam turbines and oil products, applied in the field of nuclear power plants, can solve the problems of inability to manage failure modes, unsatisfactory application and promotion conditions, and difficult on-site implementation, so as to reduce the labor workload, reduce the risk of transformation, and achieve simple and convenient on-site construction. Effect

Active Publication Date: 2022-02-01
SUZHOU NUCLEAR POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still the mainstream to use off-line periodic testing to manage oil products in power generation companies, which leads to the inability to manage certain failure modes with short P-F cycles and has a great impact
[0004] In recent years, with the development of infrared spectroscopy technology, parameters such as particle size and viscosity in oil products can be monitored online, but the probe and its auxiliary systems are relatively complicated, and it is difficult to implement on-site. For steam turbines that are directly related to power generation of devices are high risk, so app promotion is not ideal

Method used

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  • A system and method for on-line monitoring and analysis of steam turbine oil for nuclear power
  • A system and method for on-line monitoring and analysis of steam turbine oil for nuclear power
  • A system and method for on-line monitoring and analysis of steam turbine oil for nuclear power

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Embodiment 1

[0025] figure 1 It is a schematic diagram of an on-line monitoring and analysis system for steam turbine oil used in nuclear power provided by an embodiment of the present invention. Such as figure 1 As shown, the steam turbine oil online monitoring and analysis system for nuclear power plants of the present invention includes an oil online monitoring cabinet 10 , a DCS system 20 and a monitoring center 30 . Oil product online monitoring cabinet 10 collects the oil product of the steam turbine oil tank, and after analysis, the generated online monitoring data of steam turbine lubricating oil oil product is transmitted to the DCS system through the signal cable through the 4-20mA analog signal, and uploaded to the monitoring center through the DCS system ; Users can query data in the monitoring center, and realize early warning and fault diagnosis of steam turbines through the monitoring center.

[0026] Specifically, in an embodiment of the present invention, the oil online ...

Embodiment 2

[0032] Figure 4 It is a flow chart of an online monitoring and analysis method for steam turbine oil used in nuclear power provided by an embodiment of the present invention. Such as Figure 4 Shown, nuclear power steam turbine oil online monitoring analysis method of the present invention comprises the following steps:

[0033] Step S410: The oil online monitoring cabinet is used to analyze and test the lubricating oil from the steam turbine oil tank to generate online monitoring data of the steam turbine lubricating oil;

[0034] Specifically, in an embodiment of the present invention, the on-line monitoring data of steam turbine lubricating oil includes particle size, water content, kinematic viscosity, dielectric constant, temperature, density

[0035] Step S420: Send the online monitoring data of the steam turbine lubricating oil to the monitoring center via the DCS system;

[0036] Step S430: Calculate and analyze the online monitoring data of the steam turbine lubri...

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Abstract

The invention discloses an online monitoring and analysis system for steam turbine oil used in nuclear power, which includes an online oil monitoring cabinet, a DCS system and a monitoring center. Online monitoring data of lubricating oil products; DCS system is used to send the online monitoring data of steam turbine lubricating oil products to the monitoring center; the monitoring center includes basic data analysis module, early warning module and fault diagnosis module, and the basic data analysis module is used The online monitoring data of oil and oil products is calculated and analyzed; the early warning module is used to monitor the analysis results of the basic data analysis module, and when the online monitoring data of steam turbine lubricating oil products is abnormal, an alarm message is generated; the fault diagnosis module is used to use the The fault tree generates preliminary diagnostic results. The present invention has little modification risk, can timely notify abnormal parameters, and can accurately provide preliminary diagnosis results.

Description

technical field [0001] The invention relates to the technical field of nuclear power plants, in particular to an online monitoring and analysis system and method for steam turbine oil used in nuclear power plants. Background technique [0002] Hydraulic oil and lubricating oil (collectively referred to as oil products) are the lifeblood of industrial production, especially mechanical equipment. The oil condition determines the operating efficiency, reliability and service life of mechanical equipment. Through long-term practice, people have realized that parameters such as solid particle size in oil, water content and working temperature are the main factors that cause changes in oil quality, and 70-80% of equipment accidents are related to oil pollution; oil pollution is not only serious It affects the normal operation of lubrication and hydraulic equipment, and causes a lot of human waste and economic loss. Oil pollution not only leads to the deterioration of the performa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D21/00G01N33/28G01N11/00G01N9/00
CPCF01D21/003G01N33/2888G01N33/2847G01N11/00G01N9/00
Inventor 李林祖帅崔妍黄立军王勤湖
Owner SUZHOU NUCLEAR POWER RES INST
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