Offline rod position measurement card test device

Abstract

The utility model discloses an off-line rod position measurement card test device, including an installation box, which has a first side panel and a second side panel; a power processing module and a simulated rod position detector load are arranged in the installation box; the first side panel is provided with a power interface and an encoding processor card interface; the second side panel is provided with a detector power card interface, an auxiliary coil signal interface and a secondary coil signal interface; the power interface is connected with the power processing module, the encoding processor card interface and the detector power card interface; the simulated rod position detector load is connected with the detector power card interface, the auxiliary coil signal interface is connected with the detector power card interface, and the secondary coil signal interface is connected with the encoding processor card interface. The device can supply power to the detector power card and the encoding processor card, and can simulate the rod position detector. The debugging personnel can independently complete the debugging of the rod position measurement card without the rod position measurement cabinet and the rod position detector, which is more convenient to operate and can effectively reduce the maintenance period.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to an off-line rod position measurement card testing device. Background Art

[0002] The start-up, shutdown, core power control, and real-time monitoring of the position of control rods in nuclear power plant reactors require a rod control and position system to be implemented, among which the real-time position monitoring of control rods requires a rod position measurement cabinet (PME for short). The rod position measurement cabinet is the core functional cabinet of the rod control and position system, providing a 50Hz signal source for the rod position detector, receiving the electromagnetic induction signal of the feedback signal of the rod position detector in real time, calculating and processing the signal, and outputting the corresponding digital signal for the server to display the rod position in real time.

[0003] Reactor rod position measurement cards include detector power supply cards and encoding processor cards. The detector power supply card is the core card that stops supplying 50Hz signal source to the rod position detector, and the encoding processor card is the core card that analyzes and processes the feedback signal of the rod position detector and outputs the digital rod position signal "Gray code signal". In the past, during the debugging process of the detector power supply card and the encoding processor card, it was necessary to extend the power cord and signal cord of the detector power supply card and the encoding processor card from the inside of the cabinet to the outside of the cabinet through extension cables, so that the detector power supply card and the encoding processor card can be placed next to the cabinet to facilitate testing and adjusting the potentiometer. This method is complicated to operate and takes a long time to detect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an off-line rod position measurement card testing device.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct an offline rod position measurement card test device, including an installation box, the installation box has a first side plate and a second side plate opposite to each other; a power processing module and a simulated rod position detector load are arranged in the installation box;

[0006] The first side panel is provided with a power supply interface and an encoding processor card interface; the second side panel is provided with a detector power supply card interface, an auxiliary coil signal interface and a secondary coil signal interface, and the number of the secondary coil signal interfaces is five;

[0007] The power supply interface is connected to the power supply processing module, the encoding processor card interface and the detector power supply card interface;

[0008] The simulated rod position detector load is connected to the detector power card interface, the auxiliary coil signal interface is connected to the detector power card interface, and the five secondary coil signal interfaces are connected to the encoding processor card interface.

[0009] In some embodiments, the power processing module includes a filter, a pulse group suppressor, a transformer and a low-voltage power supply board connected in sequence, the filter is connected to the power interface, and the low-voltage power supply board is connected to the encoding processor card interface and the detector power supply card interface.

[0010] In some embodiments, the auxiliary coil signal interface and the secondary coil signal interface are both BNC interfaces.

[0011] In some embodiments, a Gray code output interface is further provided on the first side panel, and the Gray code output interface is connected to the encoding processor card interface and the detector power card interface.

[0012] In some embodiments, a first test hole and a second test hole are provided on the second side panel, the first test hole is connected to the detector power card interface, and the second test hole is connected to the primary coil of the simulated rod position detector load.

[0013] In some embodiments, the second side panel is further provided with a toggle switch, and the toggle switch is provided between the simulated rod position detector load and the detector power card interface.

[0014] In some embodiments, a cooling fan is further provided in the installation box, and the cooling fan is connected to the power processing module.

[0015] In some embodiments, the installation box includes a box body and a box cover that is openably connected to the box body, and the box body has the first side panel and the second side panel.

[0016] In some embodiments, a handle is provided on the box lid.

[0017] In some embodiments, the box body is provided with a plurality of heat dissipation holes.

[0018] The implementation of the utility model has the following beneficial effects: the offline rod position measurement card test device can supply power to the detector power card and the encoding processor card, and can simulate the rod position detector. The debugging personnel do not need a rod position measurement cabinet and a rod position detector, and can independently complete the debugging of the rod position measurement card (detector power card and encoding processor card), which is easier to operate and can effectively reduce the maintenance period. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of an off-line rod position measurement card testing device in some embodiments of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the first side plate side of the off-line rod position measurement card testing device in some embodiments of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the second side plate side of the off-line rod position measurement card testing device in some embodiments of the utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the off-line rod position measurement card testing device in some embodiments of the utility model;

[0024] Figure 5 It is a connection diagram of a simulated rod position detector load in some embodiments of the utility model. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0026] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0027] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0028] See also Figures 1 to 5 The utility model shows an off-line rod position measurement card testing device, which includes an installation box 10, the installation box 10 has a first side plate 11 and a second side plate 12 opposite to each other; a power processing module 20 and a simulated rod position detector load 30 are arranged in the installation box 10.

[0029] The first side panel 11 is provided with a power supply interface 40 and an encoding processor card interface 50; the second side panel 12 is provided with a detector power supply card interface 60, an auxiliary coil signal interface 70 and a secondary coil signal interface 80, and the number of the secondary coil signal interfaces 80 is five.

[0030] The power interface 40 is connected to the power processing module 20, the encoding processor card interface 50 and the detector power card interface 60;

[0031] The simulated rod position detector load 30 is connected to the detector power card interface 60 , the auxiliary coil signal interface 70 is connected to the detector power card interface 60 , and the five secondary coil signal interfaces 80 are connected to the encoding processor card interface 50 .

[0032] Combination Figure 4As shown, in some embodiments, the power processing module 20 may include a filter 21, a pulse group suppressor 22, a transformer 23 and a low-voltage power supply board 24 connected in sequence, the filter 21 is connected to the power interface 40, and the low-voltage power supply board 24 is connected to the encoding processor card interface 50 and the detector power card interface 60 to provide power to the encoding processor card through the encoding processor card interface 50 and to provide power to the detector power card through the detector power card interface 60.

[0033] The filter 21 model can be selected as B2RT-6A, the pulse group suppressor 22 model can be selected as CX-P01-FSPD06T, the transformer 23 model can be selected as R260, and the low-voltage power supply board 24 model can be selected as RPY-IC-GN-107-A.

[0034] Preferably, the power interface 40 model can be FN283-4-06, and the power interface 40 can be equipped with a filter and a 4A single fuse.

[0035] Among them, the same 220VAC, 50HZ power supply can be converted into three-way AC power supply of 9V, 36V, and 45V through the power interface 40, the filter 21 and the pulse group suppressor 22 through the transformer 23, and output four-way DC power supply of 5V, -15V, 15V, and 60V through the low-voltage power board 24. Among them, the DC 5V, -15V, and 15V can be divided into two ways to supply power to the encoding processor plug-in through the encoding processor card interface 50 and to the detector power card through the detector power card interface 60, and the DC 60V can be used to supply power to the primary coil of the detector power plug-in separately. Of course, different power supplies can be provided according to different rod position measurement cards. This is only an example and is not specifically limited.

[0036] In some embodiments, Figure 5 As shown, the simulated rod position detector load 30 has two sets of coils, the primary coil 31 and the auxiliary coil 32, which can simulate the 50Hz, 1.5A load state of the rod position detector. Further, the simulated rod position detector load 30 can select the CNPRI coil simulation load. Of course, other coil simulation loads can also be selected according to actual needs, which is not specifically limited here.

[0037] In some embodiments, the encoding processor card interface 50 is connected to the encoding processor card through a 50-pin connector socket via a wiring harness. Preferably, the encoding processor card interface 50 can be selected as model JY27496E25E29PN.

[0038] In some embodiments, the detector power card interface 60 can be converted to a Han 25D connector through a wire harness, and connected to the detector power card through the Han25D connector. When the detector power plug-in is in the working state, the detector power card interface 60 is connected to the simulated rod position detector load 30, and a simulated primary coil 1.5A / 50Hz sinusoidal signal can be realized. Preferably, the detector power card interface 60 can be selected as model JY27496E25E29SN.

[0039] In some embodiments, the auxiliary coil signal interface 70 and the secondary coil signal interface 80 are both BNC interfaces.

[0040] Among them, the auxiliary coil signal interface 70 can be used for debugging the simulation auxiliary coil before loading to provide an interface. The auxiliary coil signal interface 70 can be connected to a function signal generator to simulate the auxiliary coil signal of the rod position detector.

[0041] There are five secondary coil signal interfaces 80, which correspond to the inputs of the A, B, C, D, and E secondary coils of the rod position detector, respectively, and can be connected to a function signal generator to simulate the secondary coil signal of the rod position detector and provide a signal source for the encoding processor plug-in. That is, the secondary coil signal interface 80 can be connected to a function signal generator, and the function signal generator outputs different amplitude signals of 50Hz to simulate the feedback signals of the five secondary coils A, B, C, D, and E of the rod position detector.

[0042] In some embodiments, a Gray code output interface 90 is further provided on the first side panel 11, and the Gray code output interface 90 is connected to the encoding processor card interface 50 and the detector power card interface 60. Specifically, the Gray code output interface 90 is a connector, which can be connected to the encoding processor card through a cable, and the processed Gray code signal and calibration signal of the encoding processor card are both connected to the Gray code output interface 90. Preferably, the Gray code output interface 90 can be selected from the model JY27496E25E29SN.

[0043] Combination Figure 3 and Figure 5 In some embodiments, the second side panel 12 is provided with a first test hole 100 and a second test hole 110, the first test hole 100 is connected to the detector power card interface 60, and the second test hole 110 is connected to the primary coil 31 of the simulated rod position detector load 30. The first test hole 100 can be a "+" test hole, and the second test hole 110 can be a "-" test hole. The first test hole 100 and the second test hole 110 can be connected in series with a multimeter to monitor the current in the primary coil 31 of the simulated rod position detector load 30. It should be noted that in the no-load state, the wiring harness between the first test hole 100 and the second test hole 110 needs to be disconnected.

[0044] Combination Figure 3 and Figure 5 In some embodiments, the second side panel 12 is also provided with a toggle switch 120, which is arranged between the simulated rod position detector load 30 and the detector power card interface 60, and can select to connect and disconnect the connection between the auxiliary coil 32 of the simulated rod position detector load 30 and the detector power card interface 60, so as to select with load or without load during debugging.

[0045] Furthermore, the toggle switch 120 may be a single-pole double-throw switch, and the model may be FTP0904.

[0046] like Figure 1 As shown, in some embodiments, a cooling fan 130 is further provided in the installation box 10. The cooling fan 130 is connected to the power processing module 20, and may be connected to the filter 21 of the power processing module 20. The cooling fan 130 can dissipate heat for the electrical components of the offline rod position measurement card test device, so that the electrical components of the offline rod position measurement card test device can operate stably.

[0047] like Figure 1 As shown, in some embodiments, the installation box 10 is roughly a rectangular parallelepiped structure, and its dimensions are roughly: 400 mm in length, 260 mm in width, and 200 mm in height.

[0048] The installation box 10 may include a box body 10a and a box cover 10b that can be opened and closed with the box body 10a. The box body 10a and the box cover 10b can be opened and closed by means of a snap connection, a threaded connection, etc. The box body 10a has a first side panel 11 and a second side panel 12. The first side panel 11 and the second side panel 12 can be two side panels in the length direction of the box body 10a. Preferably, the box body 10a and the box cover 10b can be made of metal materials, such as stainless steel, aluminum or aluminum alloy. Of course, the box body 10a and the box cover 10b can be made of non-metallic materials, which is not specifically limited here.

[0049] The box cover 10b is provided with a handle 10c for easy carrying.

[0050] The box body 10a is provided with a plurality of heat dissipation holes 10d, for example, the first side plate 11 and / or the second side plate 12 are provided with heat dissipation holes 10d, so as to improve the heat dissipation performance.

[0051] It can be understood that the offline rod position measurement card testing device can power the detector power supply card and the encoding processor card, and can simulate the rod position detector. The debugging personnel can independently complete the debugging of the rod position measurement card (detector power supply card and encoding processor card) without the need for a rod position measurement cabinet and a rod position detector. The operation is simpler and the maintenance period can be effectively reduced.

[0052] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An off-line rod position measurement card testing device, characterized in that: The invention comprises an installation box (10), wherein the installation box (10) has a first side plate (11) and a second side plate (12) opposite to each other; a power processing module (20) and a simulated rod position detector load (30) are arranged in the installation box (10); The first side panel (11) is provided with a power supply interface (40) and an encoding processor card interface (50); the second side panel (12) is provided with a detector power supply card interface (60), an auxiliary coil signal interface (70) and a secondary coil signal interface (80), and the number of the secondary coil signal interfaces (80) is five; The power supply interface (40) is connected to the power supply processing module (20), the encoding processor card interface (50) and the detector power supply card interface (60); The simulated rod position detector load (30) is connected to the detector power card interface (60), the auxiliary coil signal interface (70) is connected to the detector power card interface (60), and the five secondary coil signal interfaces (80) are connected to the encoding processor card interface (50).

2. The off-line rod position measurement card testing device according to claim 1 is characterized in that: The power processing module (20) comprises a filter (21), a pulse group suppressor (22), a transformer (23) and a low-voltage power supply board (24) which are connected in sequence, wherein the filter (21) is connected to the power supply interface (40), and the low-voltage power supply board (24) is connected to the encoding processor card interface (50) and the detector power supply card interface (60).

3. The off-line rod position measurement card testing device according to claim 1 is characterized in that: The auxiliary coil signal interface (70) and the secondary coil signal interface (80) are both BNC interfaces.

4. The off-line rod position measurement card testing device according to claim 1, characterized in that: The first side panel (11) is also provided with a Gray code output interface (90), and the Gray code output interface (90) is connected to the encoding processor card interface (50) and the detector power card interface (60).

5. The off-line rod position measurement card testing device according to claim 1 is characterized in that: The second side plate (12) is provided with a first test hole (100) and a second test hole (110), the first test hole (100) is connected to the detector power card interface (60), and the second test hole (110) is connected to the primary coil of the simulated rod position detector load (30).

6. The off-line rod position measurement card testing device according to claim 1, characterized in that: The second side plate (12) is also provided with a toggle switch (120), and the toggle switch (120) is arranged between the simulated rod position detector load (30) and the detector power card interface (60).

7. The off-line rod position measurement card testing device according to claim 1, characterized in that: A cooling fan (130) is also provided in the installation box (10), and the cooling fan (130) is connected to the power processing module (20).

8. The off-line rod position measurement card testing device according to claim 1, characterized in that: The installation box (10) comprises a box body (10a) and a box cover (10b) connected to the box body (10a) in an openable and closable manner. The box body (10a) has the first side plate (11) and the second side plate (12).

9. The off-line rod position measurement card testing device according to claim 8, characterized in that: The box cover (10b) is provided with a handle (10c).

10. The off-line rod position measurement card testing device according to claim 8, characterized in that: The box body (10a) is provided with a plurality of heat dissipation holes (10d).

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