Two reactor shutdown mechanisms of reactor and reactor

Abstract

The invention discloses a second-set reactor shutdown mechanism of a reactor, and the reactor. The second-set reactor shutdown mechanism comprise: a cylinder body, a piston and a connecting rod, wherein the first end of the connecting rod is connected with the piston, the second end of the connecting rod is used for being connected with a safety rod, and the piston is vertically installed on the cylinder body and divides the inner cavity of the cylinder body into an upper cavity and lower cavity; and a pressure guide pipe, wherein the first end of the pressure guide pipe is connected with a main loop of a reactor, the second end of the pressure guide pipe is communicated with the lower cavity, and when the main pump of the main loop works, the piston is lifted to keep the safety rod at a stand by position under the action of the pressure difference between the lower cavity and the upper cavity. According to the second-set reactor shutdown mechanism, the main loop of the reactor is connected with the lower cavity of the cylinder body, so that the position of the safety rod can be kept under the condition that driving equipment does not need to be independently arranged, and the safety rod automatically falls into the reactor core under the action of gravity when reactor shutdown is needed so as to achieve reactor shutdown.

Description

technical field [0001] The invention belongs to the technical field of reactor safety equipment, and in particular relates to a reactor with two shutdown mechanisms and a reactor with the two shutdown mechanisms. Background technique [0002] When a nuclear power plant reactor is in abnormal operation, it is necessary to stop the nuclear reaction in the core in time to ensure the safety of the reactor. At present, the safety rod action is controlled by the shutdown mechanism to complete the emergency shutdown control of the reactor. In related technologies, nuclear power plant reactors are equipped with two sets of shutdown mechanisms with different driving principles. If the first set of shutdown mechanisms cannot be guaranteed to have a good working condition at all times, when the reactor fails, the shutdown mechanism cannot realize shutdown in time. , need to use the second set of shutdown mechanism, but the current second set of shutdown mechanism is usually complicate...

AI Technical Summary

Problems solved by technology

In related technologies, nuclear power plant reactors are equipped with two sets of shutdown mechanisms with different driving principles. If the first set of shutdown mechanisms cannot be guaranteed to have a good working condition at all times, when the reactor fails, the shutdown mechanism cannot realize shutdown in time. , need to use the second set of shutdown mechanism, but the current second set of shutdown mechanism is usually complicated in design and high in cost, and there is room for improvement

Images