Search

CN-224203340-U - Nuclear power plant test box calibrator

CN224203340UCN 224203340 UCN224203340 UCN 224203340UCN-224203340-U

Abstract

The utility model discloses a nuclear power plant test box calibrator which comprises a shell and a calibration device arranged in the shell, wherein the calibration device comprises a battery, a light emitting diode, a buzzer and a test box socket which are sequentially connected in series, the calibration device further comprises a voltmeter connected in parallel at two ends of the light emitting diode, the battery is arranged in the shell, the light emitting diode, the buzzer, the test box socket and the voltmeter are all arranged on the upper surface of the shell, and the test box socket is used for connecting a nuclear power plant test box. By using the nuclear power plant test box checker, the viscous condition of the button of the nuclear power plant test box can be found in advance, and similar false start events can be avoided. The switch-on/off button reverse installation can be found in advance.

Inventors

  • LIU SHENGFENG
  • REN JUNHUA
  • WANG TONGYAN
  • ZHOU XIAODONG

Assignees

  • 阳江核电有限公司

Dates

Publication Date
20260505
Application Date
20250521

Claims (10)

  1. 1. The nuclear power plant test box calibrator is characterized by comprising a shell (10) and a calibration device (20) arranged in the shell (10), wherein the calibration device (20) comprises a battery (21), a light-emitting diode (22), a buzzer (23) and a test box socket (24) which are sequentially connected in series, and the calibration device (20) further comprises a voltmeter (25) connected in parallel with two ends of the light-emitting diode (22); The battery (21) is arranged in the shell (10), the light emitting diode (22), the buzzer (23), the test box socket (24) and the voltmeter (25) are all arranged on the upper surface of the shell (10), and the test box socket (24) is used for connecting a nuclear power plant test box (100).
  2. 2. The nuclear power plant test cassette verifier of claim 1, wherein the verification device (20) further comprises a latching relay (26) connected across the test cassette socket (24).
  3. 3. The nuclear power plant test box checker according to claim 1, wherein the outer shell (10) comprises a shell (11) and a surface cover (12), the shell (11) is in a cylindrical structure, and the surface cover (12) is used for being covered at an opening of the shell (11); The battery (21) is installed in the shell (11), and the light emitting diode (22), the buzzer (23), the test box socket (24) and the voltmeter (25) are all installed on the upper surface of the face cover (12).
  4. 4. A nuclear power plant test cassette verifier according to claim 3, characterized in that the housing (11) and the face cover (12) are connected by fasteners.
  5. 5. The nuclear power plant test cassette verifier of claim 4, wherein the fastener comprises a bolt or screw.
  6. 6. The nuclear power plant test cassette verifier of claim 1, wherein the verification device (20) further comprises a self-test switch (27) connected across the test cassette socket (24).
  7. 7. The nuclear power plant test box checker according to claim 1, characterized in that a handle is further provided on the outer shell (10).
  8. 8. The nuclear power plant test box checker according to claim 1, characterized in that a harness is further provided on the outer shell (10).
  9. 9. The nuclear power plant test cassette verifier according to claim 1, characterized in that the housing (10) is a metal housing or a plastic housing.
  10. 10. The nuclear power plant test cassette verifier according to claim 1, characterized in that the buzzer (23) comprises a passive buzzer.

Description

Nuclear power plant test box calibrator Technical Field The utility model relates to the field of nuclear power operation and maintenance, in particular to a nuclear power plant test box checker. Background Nuclear power plants typically perform a series of equipment start-stop tests during overhaul maintenance to verify the operating condition of the equipment. The test box is used as a control device for the test, and the on-off of a test running line is controlled by opening and closing, so that the purposes of controlling the start and the end of the test are achieved. When a nuclear power station is overhauled for a certain time, a start-stop test of equipment is required to be executed, but an unexpected event of immediate false start occurs after the nuclear power station is inserted into a test box, the unexpected event is caused, and the unexpected event does not accord with the high safety standard of the nuclear power industry. After-the-fact analysis shows that the false start time is caused by the fact that the closing button is stuck in the test box, and then the test circuit is immediately conducted after the test box is inserted, so that the situation of immediate start occurs. Disclosure of utility model The utility model aims to solve the technical problem of solving the problem that a test box of a nuclear power plant cannot be detected due to the fact that a closing button is stuck. The technical scheme adopted for solving the technical problems is that the nuclear power plant test box calibrator comprises a shell and a calibration device arranged in the shell, wherein the calibration device comprises a battery, a light-emitting diode, a buzzer and a test box socket which are sequentially connected in series, and the calibration device also comprises a voltmeter connected in parallel at two ends of the light-emitting diode; the battery is arranged in the shell, the light emitting diode, the buzzer, the test box socket and the voltmeter are all arranged on the upper surface of the shell, and the test box socket is used for connecting a test box of a nuclear power plant. In some embodiments, the verification device further comprises a self-sustaining relay connected to both ends of the cartridge receptacle. In some embodiments, the shell comprises a shell body and a surface cover, wherein the shell body is in a cylindrical structure, and the surface cover is used for covering an opening of the shell body; The battery is installed in the casing, the light emitting diode, the buzzer, the test box socket and the voltmeter are all installed on the upper surface of the face cover. In some embodiments, the housing is connected to the face cover by a fastener. In some embodiments, the fastener comprises a bolt or screw. In some embodiments, the verification device further comprises a self-test switch connected to both ends of the cartridge receptacle. In some embodiments, a handle is also provided on the housing. In some embodiments, a strap is also provided on the housing. In some embodiments, the housing is a metal housing or a plastic housing. In some embodiments, the buzzer comprises a passive buzzer. The nuclear power plant test box calibrator has the advantages that the viscous condition of the button of the nuclear power plant test box can be found in advance by using the nuclear power plant test box calibrator, and similar false start events can be avoided. The switch-on/off button reverse installation can be found in advance. Drawings In order to more clearly illustrate the technical solution of the present utility model, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present utility model and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings: FIG. 1 is a schematic illustration of an application of a nuclear power plant test cassette verifier in some embodiments of the present utility model; FIG. 2 is a schematic diagram of a nuclear power plant test cassette verifier in some embodiments of the present utility model; FIG. 3 is a schematic diagram of a nuclear power plant test cassette verifier in accordance with other embodiments of the present utility model. Detailed Description For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in