Transient test control method and system used in debugging and starting process of nuclear power station

A transient test and control method technology, applied in the field of nuclear power, can solve problems such as low execution efficiency, SOP cannot be controlled in time, and the temperature and pressure of the primary circuit drop rapidly.

Active Publication Date: 2015-01-21
中广核工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present application provides a transient test control method and system during the commissioning and start-up process of a nuclear power plant, which solves the problem of complex procedures, many guiding points, There are too many operation orders and low execution efficiency, resulting in low overall accident handling efficiency during the transient test of the nuclear power plant, and for the unique situation of no core waste heat during commissioning and start-up, the temperature and pressure of the primary circuit drop rapidly, SOP The technical problems that cannot be controlled in time and cannot fully meet the needs of unit control during the test process have realized the efficient judgment and intervention of a single accident that occurs in the hot test transient test through the transient test control procedure. , the transient test control procedure interrupts the cyclic execution mode of the SOP, and performs intervention control on the nuclear power plant unit, which conforms to the processing principle of the SOP and makes up for the deficiency of the SOP in single accident handling. The transient test control The combination of regulations and SOP can handle unit accidents more comprehensively, and it is highly targeted and simple in program execution when controlling the unit state, and can complete transient tests smoothly and efficiently

Method used

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  • Transient test control method and system used in debugging and starting process of nuclear power station
  • Transient test control method and system used in debugging and starting process of nuclear power station
  • Transient test control method and system used in debugging and starting process of nuclear power station

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Effect test

Embodiment 1

[0072] In practical applications, the primary loop system of a nuclear power plant includes three loops, please refer to figure 1 , is a structural diagram of a loop of the primary loop system, including: core 101, main pump 102, pressurizer 103, steam generator 104 (primary loop side) and various auxiliary systems; wherein, the auxiliary system includes: auxiliary The steam generator 104 releases water vapor from the main steam system VVP, the main water supply system ARE (not involved in the hot test) and the auxiliary water supply system ASG for injecting water into the steam generator 104; a loop of water 100 is injected into the primary loop pipeline, Under the power of the main pump 102, the primary circuit water 100 is driven to circulate in the primary circuit pipeline; during the circulation process, the primary circuit water 100 flows through the core 101 to take away the heat of the core, and transfers the heat to the The secondary circuit water 105 in the steam gen...

Embodiment 2

[0082] During the hot test period, the reactor is not loaded, so there is no waste heat of the core, and the heat in the primary circuit mainly comes from the heat generated by the operation of the main pump of the primary circuit. When the main pump of the primary circuit is completely shut down, the primary circuit will lose the heat source. Also can not establish natural circulation, if do not carry out relevant control operation, the average temperature and pressure in the primary loop will drop quickly, and when the primary loop is overcooled, the coolant (primary loop water) will shrink. However, in this test, the water in the primary circuit was excessively cooled and contracted, and natural circulation in the primary circuit could not be performed, which may eventually cause the pressure and temperature range of the primary circuit to exceed the operating limit, causing a transient impact on the primary circuit equipment. .

[0083] In this embodiment, a test is carrie...

Embodiment 3

[0097] In a specific implementation process, the primary loop system includes three loops (No. 1 loop, No. 2 loop and No. 3 loop), and each loop includes a main pump and a steam generator. Specifically, No. 1 loop includes No. 1 main pump RCP001PO and No. 1 steam generator SG1; No. 2 loop includes No. 2 main pump RCP002PO and No. 1 steam generator SG2; No. 3 loop includes No. 3 main pump RCP003PO and No. No. 3 steam generator SG3; and, the three loops share an auxiliary water supply system ASG and a turbine bypass system GCT.

[0098] The primary circuit temperature and pressure control method mentioned in Example 2 is a control method applicable to the outage of the three main pumps (RCP001PO~RCP003PO). In the specific implementation process, after the power switch is successful, the main pump will be powered on again Start up and start working. During this process, care should be taken to prevent overheating of the primary circuit and overpressure of the primary circuit. In ...

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Abstract

The invention discloses a transient test control method and system used in a debugging and starting process of a nuclear power station, which are used for solving the technical problems in the prior art that the program is complicated, guiding points and operation sheets are excessive and the execution efficiency is low when SOP (State Occurrence Procedure) of a unit of the nuclear power station is used for processing a single nuclear power accident, so that the whole accident processing efficiency in a transient testing process of the nuclear power station is low; the decreasing speed of temperatures and pressure of a primary circuit is high under the special conditions without reactor core residual heat and the like during the debugging and starting process, the SOP cannot control in time, and the requirements on the control of the unit in a testing process cannot be completely met. The method comprises the following steps: starting the SOP of the unit of the nuclear power station and a transient test control regulation; carrying out accident detection on the unit of the nuclear power station through the transient test control regulation to obtain detection information; and determining an accident type of the unit of the nuclear power station based on the detection information, determining an accident processing policy based on the accident type, and intercepting a circulating execution manner of the SOP based on the processing policy, so as to carry out intervene control on the unit of the nuclear power station.

Description

technical field [0001] The invention relates to the technical field of nuclear power, in particular to a transient test control method and system during the commissioning and starting of a nuclear power plant. Background technique [0002] The pressurized water reactor nuclear power plant is mainly composed of a pressurized water reactor, a primary loop system and a secondary loop system. One end of the primary loop system is connected to the core, and the other end is connected to the steam generator. The steam generator is connected to the secondary loop system. In the process of generating electricity in nuclear power plants, the reactor core of the pressurized water reactor is composed of low-enriched uranium for nuclear fission reaction, releasing a large amount of heat energy; the cooling water in the primary loop system (hereinafter referred to as the primary loop water) flows through the core to convert The thermal energy of the core is taken out of the reactor and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00G21D3/04
CPCG21D3/06Y02E30/00
Inventor 周创彬曹宁张颢章松林张剑
Owner 中广核工程有限公司
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