Digital computing method for pressure set value of deaerator of pressurized water reactor nuclear power station

A calculation method and deaerator technology, applied in nuclear power generation, factory parameter adjustment, greenhouse gas reduction, etc., can solve the problems of poor pressure control accuracy, poor flexibility and adaptability, etc., to improve control accuracy, increase flexible design, and improve flexibility adaptive effect

Inactive Publication Date: 2010-08-04
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

[0004] The present invention aims at the problems of poor pressure control accuracy and poor flexibility and adaptability of the deaerator in the 1000MW pressurized water reactor nuclear power plant, and proposes a digital calculation method for the pressure setting value of the deaerator in the pressurized water reactor nuclear power plant, on the basis of meeting the basic performance requirements In addition, the adjustable range of parameters can be increased according to engineering requirements, and the digital set value formed can be directly input as the set value of the pressure controller of the digital load shedding deaerator, and can be adjusted by acting on the pressure of the digital deaerator. to control the adjustment mechanism to drive the adjustment function of the new steam input valve, so that the actual deaerator pressure tracks the given value requirement of digital calculation

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  • Digital computing method for pressure set value of deaerator of pressurized water reactor nuclear power station
  • Digital computing method for pressure set value of deaerator of pressurized water reactor nuclear power station
  • Digital computing method for pressure set value of deaerator of pressurized water reactor nuclear power station

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Embodiment Construction

[0016] The digital algorithm structure of the pressure setting value of the deaerator in the pressurized water reactor nuclear power plant is as follows SP(KT) setting value expression, its algorithm output setting value setting can not only meet the requirements of the analog hardware device, such as figure 2 Shown is the running result curve of the algorithm on the digital simulation platform, which is consistent with figure 1 The value generated by the hardware given value generator in the prior art is consistent, and the adjustable range of parameters can be increased according to the engineering requirements, and the formed digital given value can be directly used as the setting of the pressure controller of the digital load shedding deaerator. The fixed value input acts on the digital deaerator pressure regulator to manipulate the regulating mechanism to drive the regulation of the new steam input valve, so that the actual deaerator pressure follows the digitally calcula...

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Abstract

The invention relates to a digital computing method for a pressure set value of a deaerator of a pressurized water reactor a nuclear power station. Given digital values are inputted directly as set values of a pressure controller of a digital load rejection deaerator and are applied to a pressure regulator of a digital deaerator; the pressure regulator of the digital deaerator controls an adjusting mechanism to drive the adjustment of a new steam input valve; and the pressure regulator of the digital deaerator adopts an additional flexible design of adjustable parameters of different objects on the basis of meeting the requirements of basic performance of a pressure control system of an existing deaerator, thereby improving the flexibility, adaptability and control accuracy at the same time.

Description

technical field [0001] The invention relates to the field of digital control of nuclear power plants, in particular to a digital algorithm for the pressure setting value of the deaerator in the deaerator control system of the pressurized water reactor nuclear power plant. Background technique [0002] The deaerator system is the main system of the conventional island part of the nuclear power plant. It deoxidizes and heats the feed water, continuously provides the feed water with qualified oxygen content to the main feed water pump, and ensures the net normality required by the feed water pump under different working conditions. Suction head, so it is required to design a deaerator pressure control system suitable for different working conditions to try to maintain the deaerator pressure at the required value and keep it stable. Among the four main operating conditions that affect the pressure of the deaerator involved in the conventional island of nuclear power plants, the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D3/08
CPCY02E30/40Y02E30/00
Inventor 李超钱虹
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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