Shutdown method and shutdown system for reactor coolant pump for nuclear power plant
A coolant pump and reactor technology, which is used in nuclear power generation, pump control, non-variable-capacity pumps, etc., can solve problems such as damage to the reactor coolant pump, and achieve the effect of avoiding damage.
Active Publication Date: 2019-09-27
LINGAO NUCLEAR POWER +5
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Problems solved by technology
[0005] Based on this, it is necessary to address the above technical problems to provide a shutdown method and shutdown system for reactor coolant pumps used in nuclear power plants, so as to avoid the problem of damage caused by continued operation of reactor coolant pumps at high temperatures under accident conditions
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[0056] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0057] The shutdown method of the nuclear power plant reactor coolant pump provided by the application can be applied to such as figure 1 shown in the application environment. Wherein, the shutdown system of the reactor coolant pump is connected with the reactor coolant pump, and the shutdown system is used to control the shutdown of the reactor coolant.
[0058] In one embodiment, such as figure 2 As shown, a method for shutting down a reactor coolant pump for a nuclear power plant is provided, and the method is applied to figure 1 Take the outage system in as an exam...
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The invention relates to the technical field of reactor control and protection of nuclear power plants, in particular to a shutdown method and shutdown system for a reactor coolant pump for a nuclear power plant. The method comprises the steps that the current state of the reactor coolant pump is detected under the accident condition; if the current state of the reactor coolant pump conforms to a preset shutdown state, a shutdown signal is generated; and the reactor coolant pump is controlled to be shut down according to the shutdown signal. Through the shutdown method and the shutdown system, under the accident condition, when the current state of the reactor coolant pump conforms to the preset shutdown state, the reactor coolant pump is controlled to be shut down, it can be ensured that the reactor coolant pump is shut down under the accident condition, and the situation that the reactor coolant pump continuously operates to cause damage is avoided.
Description
technical field [0001] The present application relates to the technical field of nuclear power plant reactor control and protection, in particular to a method and system for shutting down reactor coolant pumps used in nuclear power plants. Background technique [0002] The reactor coolant pump is one of the important components in the reactor coolant system, and its function is to establish a forced circulation of the primary reactor coolant. During the normal operation of the unit, the reactor coolant pump transfers the heat generated by the reactor core to the steam generator to generate steam to drive the turbogenerator unit to generate electricity; it is used to remove the heat when the reactor is started, stopped and accidental cooling to ensure the safety of the reactor core . [0003] Under accident conditions, when the reactor coolant pump loses cooling water, the temperature of the motor bearing of the reactor coolant pump will increase, and when the temperature ex...
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IPC IPC(8): F04D15/00G21D3/06
CPCF04D15/0077F04D15/0088F04D15/0245G21D3/06Y02E30/00
Inventor 黄立民
Owner LINGAO NUCLEAR POWER