A method and system for controlling the pressure of a small reactor secondary loop steam pipeline

Abstract

The present invention provides a method and system for controlling the pressure of the secondary loop steam pipeline of a small reactor. The method comprises: obtaining the measured pressure value of the secondary loop steam pipeline of a specified column, the total load value of the secondary loop, and the measured value of nuclear power, and respectively performing an operation on the obtained signals. Process to obtain the processed pressure measured value, pressure setting value, processed total load value and processed nuclear power measured value, and judge whether the processed pressure measured value matches the pressure setting value of the secondary circuit pipeline and the processed nuclear power Whether the measured value and the processed total load value of the secondary circuit match; when they do not match, the first opening signal is generated according to the processed pressure measured value and the secondary circuit pipeline pressure setting value; according to the processed nuclear power measured value and processed The final secondary circuit total load value generates the second opening degree signal, and controls the pressure of the secondary circuit steam pipeline according to the first opening degree signal and the second opening degree signal. The invention well realizes the automatic control of the pressure of the steam pipeline of the secondary circuit of the small reactor.

Description

technical field [0001] The invention relates to the technical field of pressure control of the secondary loop steam pipeline of a reactor, in particular to a method and system for controlling the pressure of the secondary loop steam pipeline of a small reactor. Background technique [0002] In the prior art, the secondary loop steam bypass exhaust system of the reactor adopts the average temperature control mode (T mode) and the steam pressure control mode (P mode). At different power levels, the automatic control scheme of the steam bypass exhaust system adopts Different operating modes, using T-mode at high power and P-mode at low power, however the above automatic control scheme of the steam bypass system is not suitable for small reactors. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a method and system for controlling the pressure of the reactor secondary loop steam pipeline suitable for a small reactor. ...

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Problems solved by technology

[0002] In the prior art, the steam bypass discharge system of the reactor's secondary circuit adopts the average temperature control mode (T mode) and the steam pressure control mode (P mode). At different power levels, the automatic control scheme of the steam bypass discharge system adopts Different operating modes, T mode is used at high power and P mode is used at low power, however the above automatic control scheme of steam bypass system is not suitable for small reactors

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