CN219552667U - Nuclear instrument system test connecting device - Google Patents

Abstract

The utility model discloses a testing and connecting device of a nuclear instrument system, which comprises a shell, wherein the shell is provided with a plurality of measuring holes, a wire connected with the measuring holes is arranged in the shell, the wire penetrates through the shell, and a connecting plug is arranged at one end of the wire, which is positioned on the shell. By using the test connection device of the nuclear instrument system, the fault processing speed of the RPN system and the safety of preventive maintenance can be effectively improved, and unnecessary damage of system equipment is avoided, so that the machine set is in a state of being out of order or is shut down or shut down unexpectedly. The test connection device of the nuclear instrument system is applied to the periodic verification of the MTE cabinet, the original 8-hour verification period is shortened to 1.5 hours, and the working efficiency is improved.

Description

Nuclear instrument system test connecting device

Technical Field

The utility model relates to a maintenance technology of an off-stack neutron flux measurement device of a nuclear power plant, in particular to a test connection device of a nuclear instrument system.

Background

The nuclear instrumentation system (RPN) is a system that directly measures and displays the reactor nuclear power and participates in the calculation of the rate of power change and the radial and axial distribution of power, so the stable operation of the RPN system is directly related to the safety of the reactor. The RPN periodic test is to use a maintenance test device (MTE) test cabinet to respectively check and calibrate each measuring range channel of the RPN so as to determine that the signal transmission and calculation functions of the RPN system are accurate.

A maintenance test cabinet or Maintenance Test Equipment (MTE) and an in-situ display unit (LDU). The MTE mainly comprises an industrial control computer, an input/output board card, a current/pulse signal generator, a display, a keyboard mouse and a printer, and is used for periodic test of a protection channel of a nuclear instrument system, curve drawing of a detector, and fixed value adjustment of high voltage, discrimination of a running value and the like. The LDU is a display device and is used for executing tasks related to the security level software of the protection channel, including the identification of the software of the connection channel, the check of software faults, the display of software variables and parameters, the modification of software parameters, the loading of description files, the reference of log events and the like.

When the periodic test result is abnormal or the signal amplification clamping piece is required to be measured to output, the MTE signal injection and cabinet signal output loop is required to be checked so as to locate the fault point. But the joint that MTE and rack are connected is 100 needles, 36 needles, 24 needles plugs, and the contact pin is tiny and near-distance, and current processing method uses the universal meter to measure the signal, easily causes the short circuit, has the risk of burning out the fastener, leads to the unit to trigger and jump a heap signal.

Disclosure of Invention

The utility model aims to provide a test connection device for a nuclear instrument system.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a structure nuclear instrument system test connecting device, includes the shell, the shell is equipped with a plurality of measuring holes, be equipped with in the shell with the wire that the measuring hole is connected, the wire wears to locate the shell just the wire is located the one end of shell is equipped with connecting plug.

In some embodiments, the measurement orifice has a diameter of 12.2mm.

In some embodiments, the housing is an ABS housing.

In some embodiments, the housing is an aluminum housing.

In some embodiments, the circumference of the measuring hole is provided with a logo.

In some embodiments, the housing includes a shell having an opening, and a seal cover removably mounted to the opening of the shell.

In some embodiments, the bottom surface of the housing is provided with a support.

In some embodiments, a test button is provided on the housing, the test button being connected to the connection plug by a cable.

In some embodiments, the nuclear instrumentation system test connection device further comprises a protective sleeve sleeved around the connection plug.

The implementation of the utility model has the following beneficial effects: by using the test connection device of the nuclear instrument system, the fault processing speed of the RPN system and the safety of preventive maintenance can be effectively improved, and unnecessary damage of system equipment is avoided, so that the machine set is in a state of being out of order or is shut down or shut down unexpectedly.

The test connection device of the nuclear instrument system is applied to the periodic verification of the MTE cabinet, the original 8-hour verification period is shortened to 1.5 hours, and the working efficiency is improved.

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 instrumentation system test connection device in some embodiments of the present utility model;

FIG. 2 is a schematic diagram of a test connection device for a nuclear instrumentation system in some embodiments of the present utility model;

FIG. 3 is a front view of the nuclear gauge system test connection of FIG. 2;

FIGS. 4 and 5 are schematic structural views of HN header- Φ4mm header insulation test link cartridges in some embodiments of the present utility model;

FIG. 6 is a schematic diagram of a REMOTE ADJUST test link box according to some embodiments of the utility model;

FIG. 7 is a schematic diagram of a side of the REMOTE ADJUST test link box of FIG. 6;

FIG. 8 is a schematic diagram of another side of the REMOTE ADJUST test link box of FIG. 6;

FIG. 9 is a schematic diagram of a test & CURVE PLOTTING RACKS test link cartridge in accordance with some embodiments of the utility model;

FIG. 10 is a schematic diagram of a side of the test & CURVE PLOTTING RACKS test link cartridge of FIG. 9;

FIG. 11 is a schematic diagram of another side of the test & CURVE PLOTTING RACKS test link cartridge of FIG. 9;

FIG. 12 is a schematic diagram of a TESTING PR CHANNEL test link cartridge in some embodiments of the utility model;

FIG. 13 is a schematic diagram of a side of the TESTING PR CHANNEL test link cartridge of FIG. 12;

fig. 14 is a schematic view of the structure of the other side of the TESTING PR CHANNEL test link cartridge of fig. 12;

FIG. 15 is a schematic diagram of the structure of a TESTING SR & IP CHANNELS test link cartridge in some embodiments of the utility model;

fig. 16 is a schematic diagram of a side of the TESTING SR & IP CHANNELS test link cartridge of fig. 15.

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 specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.

Referring to fig. 1 to 3, the present utility model shows a testing connection device 10 for a nuclear instrument system, which comprises a housing 11, wherein the housing 11 is provided with a plurality of measuring holes 12, a wire 13 connected with the measuring holes 12 is arranged in the housing 11, the wire 13 is arranged on the housing 11 in a penetrating manner, and a connecting plug 14 is arranged at one end of the wire 13 located on the housing 11.

The nuclear instrumentation test connection device 10 may be used as an intermediate device for connecting the test unit 20 and to a test port of a maintenance test cabinet or Maintenance Test Equipment (MTE) 30 via a connection plug. The nuclear instrumentation system test connection device 10 may also be defined as a nuclear instrumentation system test connection box.

In some embodiments, the measuring hole 12 has a diameter of 12.2mm. Preferably, the circumference of the measuring hole 12 is provided with a marking, such as a digital or English marking, so that the operator knows the function of the measuring hole 12.

In some embodiments, the housing 11 is an ABS housing. ABS is an acronym for Acrylonitrile Butadiene Styrene, which refers to an acrylonitrile-butadiene-styrene copolymer, and is a thermoplastic polymer material structure with high strength, good toughness and easy processing and forming. It is understood that ABS housings have high hardness and strength, heat resistance and corrosion resistance, and can be used for a long time, and are not easily damaged.

In some embodiments, the housing 11 is an aluminum housing. Of course, the housing 1 may be made of other materials.

In some embodiments, the housing 11 has a substantially square structure, and the housing 11 includes a housing having an opening, and a sealing cover detachably mounted at the opening of the housing. Understandably, the detachable structure is adopted, so that the production and the processing are convenient, and meanwhile, the subsequent disassembly and overhaul can be convenient.

In some embodiments, the bottom surface of the housing 11 is provided with a support portion, which may be a support foot structure, which may serve as a support. Of course, in some embodiments, the support may not be provided.

In some embodiments, the housing 11 is provided with a test button, which is connected to the connection plug 14 by a cable.

In some embodiments, the measuring hole 12 has a diameter of 12.2mm. Preferably, the circumference of the measuring hole 12 is provided with a marking, such as a digital or English marking, so that the operator knows the function of the measuring hole 12.

In some embodiments, the nuclear instrumentation test connection device 10 further includes a protective sleeve that is sleeved around the outer perimeter of the connector plug 14 to prevent equipment damage due to tool circuit failure from prolonged storage.

In some embodiments, the plurality of wires 13 may be bundled by an insulating clasp to avoid cluttering the arrangement of wires 13 within the housing 11.

The lead 13 and the cable can be a cable with the model of BRUCKSKES D-VIERSEN SABIX D315FRNC 32 x 0.25MM2 CE, and the cable has the characteristics of low smoke, no halogen, flame retardance and long service life. Of course, the wires 13 and cables may be selected according to the requirements, and are not particularly limited herein.

Referring to fig. 4 to 5, the nuclear instrumentation system test connection device 10 is a HN female- Φ4mm female insulation test link box, and the HN female- Φ4mm female insulation test link box is provided with two measurement holes, each of which has a hole diameter of 12.2mm. The thickness of the HN female-phi 4mm female insulation test link box can be 3mm. Other dimensions of the HN header- Φ4mm header insulation test link box may be implemented in accordance with fig. 4, and will not be described in detail herein.

Referring to fig. 6 to 8, the nuclear instrumentation system test connection device 10 is a REMOTE ADJUST test link box, and the upper surface of the REMOTE ADJUST test link box may be provided with two measurement areas, wherein one measurement area may be provided with 37 measurement holes, and the other measurement area may be provided with 22 measurement holes. The upper side of the measuring hole may be provided with indicia such as digital indicia. The surface of the REMOTE ADJUST test link box can also be provided with a measurement function mark.

Fig. 7 is a front view of the REMOTE ADJUST test link box. Fig. 8 is a rear view of the REMOTE ADJUST test link box, wherein a side plate of a housing of the REMOTE ADJUST test link box may be provided with two through holes for two wires and/or cables to pass through, an aperture of each through hole is 22mm, and a measuring mark may be further provided at a lower circumference of each through hole. Other dimensions of the REMOTE ADJUST test link box can be implemented according to FIGS. 6-8, and will not be discussed in detail herein.

Referring to fig. 9 to 11, the nuclear instrumentation system test connection device 10 is a test & CURVE PLOTTING RACKS test link box, and 22 measuring holes, each having a hole diameter of 12.2mm, may be formed in the upper surface of the test & CURVE PLOTTING RACKS test link box. The upper side of the measuring hole may be provided with indicia such as digital indicia. The surface of the REMOTE ADJUST test link box can also be provided with an adjusting button or an adjusting knob.

Fig. 10 is a front view of the test & CURVE PLOTTING RACKS test link cartridge. Fig. 11 is a rear view of the test & CURVE PLOTTING RACKS test link box, and the side panels of the housing of the test & CURVE PLOTTING RACKS test link box may be provided with a through hole having a bore diameter of 22mm for wires and/or cables to pass through. Other dimensions of the test & CURVE PLOTTING RACKS test link box can be implemented in accordance with fig. 9-11 and will not be discussed in detail herein.

Referring to fig. 12 to 14, the nuclear instrumentation system test connection device 10 is a TESTING PR CHANNEL test link box, and the upper surface of the TESTING PR CHANNEL test link box may be provided with 100 measurement holes, each measurement hole having a hole diameter of 12.2mm. The upper side of the measuring hole may be provided with indicia such as digital indicia.

Fig. 13 is a front view of the TESTING PR CHANNEL test link cartridge. Fig. 14 is a rear view of the TESTING PR CHANNEL test link cartridge, and the side plates of the housing of the TESTING PR CHANNEL test link cartridge may be provided with a through hole having an aperture (diameter) of 42mm for the wires and/or cables to pass out. Other dimensions of the TESTING PR CHANNEL test link cartridge may be implemented in accordance with fig. 12-14 and will not be discussed in detail herein.

Referring to fig. 15 to 16, the nuclear instrumentation system test connection device 10 is a TESTING SR & IP CHANNELS test link box, and the TESTING SR & IP CHANNELS test link box may be provided with two measurement areas, each of which may be provided with 37 measurement holes. The upper side of the measuring hole may be provided with indicia such as digital indicia. The pore diameter of the measuring pore is 12.2mm. The surface of the TESTING SR & IP CHANNELS test link box can also be provided with a measurement function indicator.

Fig. 16 is a rear view of the TESTING SR & IP CHANNELS test link box, and the side plate of the housing of the TESTING SR & IP CHANNELS test link box may be provided with two through holes for two wires and/or cables to pass through, each through hole has a hole diameter of 22mm, and the lower circumference of the through hole may be further provided with a measurement mark. Other dimensions of the TESTING SR & IP CHANNELS test link cartridge can be implemented in accordance with fig. 15-16 and will not be discussed in detail herein.

It should be noted that the test link box may be defined as a test connection box, a test connection device, a measurement link box, or the like.

It will be appreciated that the nuclear instrumentation test connection 10 converts 100, 36, 24 pin plugs to standard phi 4 and BNC connectors and then connects the multimeter to perform the measurement function.

It can be appreciated that the test connection device 10 of the nuclear instrument system is used on each unit RPN system in the Yangjiang nuclear power plant, so that the fault processing speed of the RPN system and the safety of preventive maintenance are successfully and effectively improved, and unnecessary damage to system equipment is avoided, and the unit is prevented from being in a state of being out of operation or unexpected from being shut down and shut down.

The nuclear instrument system test connection device 10 is applied to the periodic verification of an MTE cabinet, and after the device is used, the construction period is shortened to 1.5 hours, so that the working efficiency is improved; in addition, the result of the project participates in the periodic test of the RPN system and the correction maintenance fault investigation for 3 times, the specific fault clamping piece is accurately positioned, the situation that the RPN system clamping piece is subjected to enveloping replacement due to the undefined fault cause is avoided, and the use cost of a large number of spare parts is saved.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (9)

1. The utility model provides a nuclear instrument system test connecting device which characterized in that, includes the shell, the shell is equipped with a plurality of measuring holes, be equipped with in the shell with the wire that the measuring hole is connected, the wire wears to locate the shell just the wire is located the one end of shell is equipped with connecting plug.

2. The nuclear gauge system test connection of claim 1, wherein the measurement aperture has a diameter of 12.2mm.

3. The nuclear gauge system test connection of claim 1, wherein the housing is an ABS housing.

4. The nuclear gauge system test connection of claim 1, wherein the housing is an aluminum shell.

5. The nuclear gauge system test connection of claim 1, wherein the perimeter of the measurement aperture is provided with a logo.

6. The nuclear gauge system test connection of claim 1, wherein the housing includes a shell having an opening, and a seal cover removably mounted to the opening of the shell.

7. The nuclear gauge system test connection of claim 1, wherein the bottom surface of the housing is provided with a support.

8. The nuclear gauge system test connection device of claim 1, wherein a test button is provided on the housing, the test button being connected to the connection plug by a cable.

9. The nuclear gauge system test connection of claim 1, further comprising a protective sleeve sleeved around the outer periphery of the connection plug.