Rod drop test device and system for control rod drive wire
A test device and drive line technology, applied in the control of nuclear reactions, emergency protection devices, instruments, etc., can solve problems such as structural damage, and achieve the effect of easy installation and compact structure
Active Publication Date: 2021-01-01
WUHAN SECOND SHIP DESIGN & RES INST
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Problems solved by technology
However, if the impact force at the end of the control rod drop is too large, it is easy to cause damage to the related structures inside the reactor. Therefore, a rod drop buffer structure is installed on the control rod driving line; Drop bar impact force requirements, need to be measured
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[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0040] see Figure 1~3 As shown, the embodiment of the present application provides a rod drop test device for a control rod drive line, and the rod drop test device includes:
[0041] A fixed frame body 1 is provided with a release mechanism 11 on its top, and the release mechanism 11 is used to connect or disconnect the control rod d...
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The invention discloses a rod drop test device and system for a control rod drive line, and relates to the technical field of nuclear power equipment. The rod drop test device comprises a fixedly arranged frame body, a shell, an impact force sensor and a high-speed camera device; the top of the frame body is provided with a release mechanism, and the release mechanism is used for connecting or disconnecting the control rod drive line to be tested; the shell is arranged on the frame body and is provided with an accommodating cavity for the control rod driving wire to fall down; the impact forcesensor is arranged in the accommodating cavity and is used for measuring the impact force of the control rod driving line when the control rod driving line falls to the lowest position; and the high-speed camera device is arranged on the frame body, is arranged towards the shell and is used for acquiring a curve of the relationship between the displacement and the time in the rod falling processof the control rod driving line. The rod falling process of the control rod driving wire can be simulated, and the displacement time curve of rod falling and the impact force of the last stage of rodfalling are obtained.
Description
technical field [0001] The present application relates to the technical field of nuclear power equipment, in particular to a rod drop test device and system for control rod drive lines. Background technique [0002] In a nuclear power plant reactor, the main function of the control rod drive mechanism is to drive the control rod assembly to move up and down in the core to control the reactivity, and after the emergency shutdown signal is triggered, the control rod assembly should be able to rely on gravity and acceleration springs. Under the action, the rods can be quickly dropped to realize safe shutdown. However, if the impact force at the end of the control rod drop is too large, it is easy to cause damage to the related structures inside the reactor. Therefore, a rod drop buffer structure is installed on the control rod driving line; Falling rod impact force requirements need to be measured. [0003] Due to the complex structure of the reactor, there are few test devic...
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IPC IPC(8): G21C9/02G09B25/00
CPCG21C9/02G09B25/00Y02E30/30
Inventor 许怀锦骆青松
Owner WUHAN SECOND SHIP DESIGN & RES INST