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Input switching device suitable for in-reactor emergency power supply system

A technology of power supply system and switching device, which is applied in circuit devices, emergency power supply arrangements, coupling devices, etc., can solve the problems of different forms, capacities, incompatibility, and non-uniform interface forms of emergency power supply systems, so as to improve defense in depth. Ability to achieve the effect of reliability

Active Publication Date: 2022-03-01
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the forms and capacities of the two emergency power supply systems commonly used at the present stage are different, and the interface forms are not unified, so they cannot be compatible downwards in terms of capacity. The purpose is to provide an emergency power supply system suitable for the stack The input switching device of the system solves the compatibility problem between the mobile emergency power supply system of HFETR and the mobile emergency power system of the engineering test device

Method used

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  • Input switching device suitable for in-reactor emergency power supply system
  • Input switching device suitable for in-reactor emergency power supply system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051]The power part of the HFETR mobile emergency power supply system is a shock-resistant trailer-type diesel generator set with an output power of 176kW.

[0052] The power part of the mobile emergency power system of the engineering test device is a mobile diesel generator set with a rated output power of 1400kW.

[0053] In general, the size of the output interface of the power part of the mobile emergency power system of the engineering test device is larger than that of the power part of the HFETR mobile emergency power supply system, so the power part of the mobile emergency power system of the engineering test device cannot realize the HFETR. Support, this embodiment provides a switch structure, which can realize support.

[0054] An input transfer device suitable for an emergency power supply system in a reactor comprises an input conductive core set, a transfer assembly and an output conductive core set.

[0055] The input conductive core set has a first end and a ...

Embodiment 2

[0066] This embodiment describes the specific structures of the input conductive core set, the output conductive core set and the transfer assembly.

[0067] The input conductive core set includes 4 large conductive copper cores 3, the large conductive copper core 3 is a cylindrical pin-type interface, and the copper core hole area of ​​the large conductive copper core 3 is 400mm 2 , the layout of the four large conductive copper cores 3 matches the layout of the power supply output interface of the mobile emergency power supply device;

[0068] The number of input holes 11 on the input side insulating sheet 1 is four, and the four input holes 11 are distributed in a ring shape with the central axis of the housing, and the angle between two adjacent input holes 11 is 90°. The inner diameter of 11 is equal to the outer diameter of large conductive copper core 3;

[0069] Setting four large conductive copper cores 3 is respectively the first large conductive copper core, the se...

Embodiment 3

[0082] In addition, in this embodiment, the housing is optimized.

[0083] The housing in this embodiment includes a first housing 77 and a second housing 8, the housing is divided into two parts, the first end of the first housing 7 is fixedly connected to the circumferential surface of the input-side insulating sheet, The first end of the second housing 8 is fixedly connected to the circumferential surface of the output-side insulating sheet.

[0084] Then the second end of the first housing 7 is detachably connected to the second end of the second housing 8 through threads, so that the housing can be separated according to the specific situation, and it is convenient to maintain the adapter assembly located in the housing or replace.

[0085] In addition, in order to increase the connection stability between the large conductive copper core 3 and the small conductive copper core 4 , the housing in this embodiment may further include an input sleeve and an output sleeve 6 ....

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Abstract

The invention discloses an input switching device suitable for an in-reactor emergency power supply system, which comprises an input conductive core group, a switching assembly and an output conductive core group, and is characterized in that the first end of the input conductive core group is fixedly connected with the input side surface of the switching assembly; the first end of the output conductive core group is fixedly connected with the output side surface of the switching assembly, the second end of the input conductive core group is electrically connected with the output end of the mobile emergency power supply device, and the second end of the output conductive core group is electrically connected with the input end of the in-reactor emergency power supply system; according to the invention, through cooperation of the input conductive core group, the switching assembly and the output conductive core group, output interfaces of different mobile emergency power supply devices can be converted, thereby realizing a purpose of providing a compatible interface, further improving a deep defense capability of a research reactor for external power loss, and realizing a purpose of reliability of an emergency power supply system.

Description

technical field [0001] The invention relates to the technical field of emergency mobile power supply, in particular to an input switching device suitable for an emergency power supply system in a reactor. Background technique [0002] The emergency power supply system is an auxiliary facility of the reactor safety system, and is an important power supply to ensure the safety of the reactor in an emergency. When the external power fails, the emergency power supply system can ensure the uninterrupted power supply of the safety shutdown system, emergency cooling system, emergency lighting and instrumentation and control systems. However, when multiple extreme accidents superimpose, especially when an earthquake occurs, the emergency power supply system of the research reactor is very likely to fail due to common cause and cannot provide power. [0003] The Fukushima nuclear accident in Japan was caused by the failure of the emergency diesel generator set in the emergency power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R31/02H02J9/08
CPCH01R31/02H02J9/08
Inventor 李明王建强陈启兵赖立斯段焱垚余峰高俭彭学成易逸毛常磊
Owner NUCLEAR POWER INSTITUTE OF CHINA