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Control system for main steam isolating valve for nuclear power platform and testing method

A control system and main steam technology, applied in valve operation/release devices, valve details, valve devices, etc., can solve problems such as reactor shutdown accidents, misoperation, improper operation, etc., achieve low equipment failure rate and improve economic efficiency benefit, safety effect

Active Publication Date: 2019-04-02
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing main steam isolation valves are all manually controlled, and manual control is prone to misoperation or improper operation, which often leads to reactor shutdown accidents

Method used

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  • Control system for main steam isolating valve for nuclear power platform and testing method
  • Control system for main steam isolating valve for nuclear power platform and testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: see figure 1 As shown, a control system for the main steam isolation valve of a nuclear power platform includes a main console, the main console is connected to a controller and a data server, the controller is connected to a priority selector, and the priority selector is connected to a Standby console and control cabinet, the control cabinet is electrically connected with the actuator of the main steam isolation valve.

[0034] The main console includes a computer capable of remotely controlling the main steam isolation valve, which is used to automatically collect and display the operating parameters, alarm information and status information of the main steam isolation valve of the main steam system, and send instructions to the control unit according to the instructions input by the operator. The controller outputs control commands, and the control commands include valve opening commands and valve closing commands.

[0035] The controller is used to: ...

Embodiment 2

[0041] Embodiment 2: on the basis of embodiment 1, refer to figure 1 As shown, the control system further includes a safety platform, and the safety platform is signally connected to the priority selector. The safety platform is a safety-level device, and the safety platform is equipped with an emergency valve closing button for the main steam isolation valve. In the embodiment of the present invention, the administrator of the control system can pre-set through the priority selector: the priority of the instructions of the safety console is higher than the instructions of the main console and the backup console. When the nuclear reactor is in an accident condition and the main steam isolation valve needs to be closed, the one-button valve closing control can be realized through the safety platform, and the main steam isolation valve can be quickly closed.

Embodiment 3

[0042] Embodiment 3: on the basis of embodiment 1, refer to figure 1As shown, the control system further includes a reactor protection device, and the reactor protection device is signal-connected to the priority selector. The reactor protection device is a hardware device that implements the function of the reactor protection system and is used to monitor the operating parameters of the reactor system. In the embodiment of the present invention, the administrator of the control system can pre-set through the priority selector: the priority of the reactor protection device command is higher than that of the main console command and the standby control console command. When the power failure signal of the whole ship is detected, the reactor protection device will automatically issue a valve closing command, and automatically close the main steam isolation valve quickly.

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Abstract

The invention discloses a control system for a main steam isolating valve for a nuclear power platform and a testing method, and relates to the technical field of nuclear power unit control. The control system comprises a master station, wherein the master station is in signal connection with a controller and a data server, the controller is in signal connection with the data server and a priorityselector; the priority selector is in signal connection with the controller, a standby console and a control cabinet; the control cabinet is electrically connected with an executing mechanism of themain steam isolating valve. With the adoption of soft operation control of the master station, automation level of the control system for the main steam isolating valve is improved, multiple control instructions are automatically sorted by the priority selector, so that misoperation of the valve is greatly reduced, and equipment failure rate caused by human factors is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of nuclear power device control, in particular to a control system and a testing method for a main steam isolation valve of a nuclear power platform. Background technique [0002] The main steam isolation valve is an important hub for the power steam supply of marine nuclear power plants. It is a nuclear safety secondary equipment and has the functions of quick valve closing, valve opening and testing. During most of the time, the reactor is in a long-term normal operation state, and the main steam isolation valve is always open. However, when the rupture of the main steam pipeline causes the radioactivity of the working medium in the secondary circuit to exceed the standard, or the power failure of the whole ship occurs, the main steam isolation valve needs to be closed quickly. Therefore, in order to ensure that the main steam isolation valve can realize the safety function, that is, it can be closed quic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/02F16K37/00
CPCF16K31/02F16K37/0025
Inventor 马子超屈建平王溯勇郭勇张晓辉彭威伟贾兴亮陈光生罗捷林朱增辉邓峰
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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