CN216311358U - Stick moving signal generator of control rod - Google Patents
Stick moving signal generator of control rod Download PDFInfo
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- CN216311358U CN216311358U CN202120530501.6U CN202120530501U CN216311358U CN 216311358 U CN216311358 U CN 216311358U CN 202120530501 U CN202120530501 U CN 202120530501U CN 216311358 U CN216311358 U CN 216311358U
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- control rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model provides a stick motion signal generator of a control rod, which comprises a signal acquisition unit, a signal processing unit and a signal output unit which are connected in sequence; the input end of the signal acquisition unit is respectively connected with a plurality of control rods and is used for acquiring rod position voltages of the control rods; the output end of the signal acquisition unit is connected with the signal processing unit and is used for outputting the rod position voltages of the control rods to the signal processing unit; the input end of the signal processing unit is connected with the output end of the signal acquisition unit and is used for identifying rod position voltages corresponding to a plurality of control rods and determining rod action states according to the rod position voltages; the output end of the signal processing unit is connected with the signal output unit and outputs a control signal generated according to the action state of the rod to the signal output unit. The utility model realizes the automatic execution of the whole dynamic rod carving process; the rod value calculation error caused by human error or re-carving rod caused by human is reduced.
Description
Technical Field
The utility model relates to the technical field of dynamic rod engraving, in particular to a rod movement signal generator of a control rod.
Background
The dynamic rod carving technology has abundant operation experience in foreign nuclear power stations, is fully automatically controlled in foreign power stations, does not need the intervention of physical testers in the whole test process, but cannot realize full automatic control at present due to the fact that RGL cabinets of domestic power stations are different from American power stations, and needs the physical testers to manually input signals to ADRC at the beginning and the end of rod actions.
In the conventional method, the start point and the end point of the dynamic inscription rod are determined by manually pressing a switch to input the operation state of the control rod to the ADRC. Manual operation presents a risk of human error that may cause a deviation in the measurement of the value of the stick.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a stick motion signal generator of a control rod, which solves the technical problem that the existing manual operation has human error risk and can cause stick measurement deviation.
In one aspect, there is provided a stick motion signal generator of a control rod, including:
the signal acquisition unit, the signal processing unit and the signal output unit are connected in sequence;
the input end of the signal acquisition unit is respectively connected with a plurality of control rods and is used for acquiring rod position voltages of the control rods; the output end of the signal acquisition unit is connected with the signal processing unit and is used for outputting the rod position voltages of the control rods to the signal processing unit;
the input end of the signal processing unit is connected with the output end of the signal acquisition unit and is used for identifying rod position voltages corresponding to a plurality of control rods and determining rod action states according to the rod position voltages; the output end of the signal processing unit is connected with the signal output unit and outputs a control signal generated according to the action state of the rod to the signal output unit.
Preferably, the method further comprises the following steps: and the input end of the on-off switch is connected with the output end of the signal output unit, and the output end of the on-off switch is connected with the ADRC.
Preferably, the signal acquisition unit is provided with at least nine groups of control rod signal interfaces, each group of control rod signal interfaces is connected with one control rod, each group of control rod signal interfaces acquires the position voltage of the connected control rod, and the output end of each group of control rod signal interfaces is connected with the signal processing unit.
Preferably, the input end of the signal processing unit is respectively connected with the plurality of control rod signal interfaces, and receives the control rod position voltage acquired by each group of control rod signal interfaces.
Preferably, the input end of the signal output unit receives the control signal output by the signal processing unit, and the output end of the signal output unit outputs the control signal to the on-off switch.
Preferably, the input end of the on-off switch receives a control signal, and the on-off switch is turned on or off according to the received control signal and is used for controlling the on or off of the ADRC.
In summary, the embodiment of the utility model has the following beneficial effects:
according to the rod movement signal generator of the control rod, through analysis of the voltage value corresponding to the rod position signal of the control rod, automatic input of the rod movement signal can be triggered through voltage change, and therefore automatic execution of the whole dynamic rod carving process is achieved.
The rod value calculation error caused by human error or the re-carving of the rod caused by human error is reduced, and the working pressure of physical testers is relieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
FIG. 1 is a schematic diagram of a stick motion signal generator for a control stick according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a signal acquisition unit in an embodiment of the present invention.
FIG. 3 is a schematic diagram of a deboost signal interface in an embodiment of the present invention.
Fig. 4 is a schematic diagram of a signal processing unit according to an embodiment of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an embodiment of a stick motion signal generator of a control rod according to the present invention. In this embodiment, the method includes: the signal acquisition unit, the signal processing unit and the signal output unit are connected in sequence;
as shown in fig. 2, the input ends of the signal acquisition units are respectively connected to a plurality of control rods, and are used for acquiring rod position voltages of the plurality of control rods; the output end of the signal acquisition unit is connected with the signal processing unit and is used for outputting the rod position voltages of the control rods to the signal processing unit; it can be understood that the signal acquisition unit is responsible for collecting voltage signals and acquiring nine groups of signals, wherein the type of the signals is direct current voltage; the collected signals are sent to the signal processing unit.
In a specific embodiment, as shown in fig. 3, the signal acquisition unit is provided with at least nine groups of control rod signal interfaces, where G1, G2, N1, N2, R, SA, SB, SC, SD are names of nine groups of control rods, each group of control rod signal interfaces is connected with one control rod, each group of control rod signal interfaces acquires a connected control rod potential voltage, and an output end of each group of control rod signal interfaces is connected with the signal processing unit. The rod position signals of 9 groups of rods are extracted from the CPT system.
As shown in fig. 4, the input end of the signal processing unit is connected to the output end of the signal acquisition unit, and is configured to identify rod position voltages corresponding to a plurality of control rods, and determine a rod operation state according to the rod position voltages; the output end of the signal processing unit is connected with the signal output unit and outputs a control signal generated according to the action state of the rod to the signal output unit. It is understood that the voltage signal is processed in the signal processing unit, the processing is actually to identify whether the control rod is actuated, and the basic component is a PLC (Programmable Logic Controller), that is, the PLC identifies the voltage value between 4.820V and 1.090V, the voltage change is greater than 0.01V, and the negative change of the voltage (i.e., the differential output is a negative value), and outputs an on or off signal (control signal).
In a specific embodiment, the input end of the signal processing unit is respectively connected with the plurality of control rod signal interfaces, and receives the control rod position voltage acquired by each group of control rod signal interfaces. It will be appreciated that the signal processing unit identifies the control stick position voltage by 9 sets. Since the steps from 0 step to 235 step correspond to 1V to 5V, each step corresponds to 0.017V, and the rod speed corresponds to 72 steps/min. In the recorded data of 500ms resolution, the change of the rod position is found to be step-like, and the fluctuation interval of the voltage at the steady state is +0, -4mv of the theoretical value. Therefore, the signal processing unit has the following functions: when the rod position change is larger than 0.01V and the voltage change direction is negative, identifying the rod action; when the negative change of the rod position voltage reaches 1.081mv, the identification rod stops acting, and a corresponding control signal can be formed.
The input end of the signal output unit receives the control signal output by the signal processing unit, and the output end of the signal output unit outputs the control signal to the on-off switch.
The input end of the on-off switch is connected with the output end of the signal output unit, and the output end of the on-off switch is connected with an ADRC (advanced digital reactivity meter) which is used for calculating the reactivity during the critical and zero-power test of the reactor; specifically, the input end of the on-off switch receives a control signal, and is switched on or off according to the received control signal to control the on or off of the ADRC, so that automatic control can be achieved without human intervention in the dynamic rod carving process.
In summary, the embodiment of the utility model has the following beneficial effects:
according to the rod movement signal generator of the control rod, through analysis of the voltage value corresponding to the rod position signal of the control rod, automatic input of the rod movement signal can be triggered through voltage change, and therefore automatic execution of the whole dynamic rod carving process is achieved.
The rod value calculation error caused by human error or the re-carving of the rod caused by human error is reduced, and the working pressure of physical testers is relieved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (6)
1. A stick motion signal generator for a control stick, comprising: the signal acquisition unit, the signal processing unit and the signal output unit are connected in sequence;
the input end of the signal acquisition unit is respectively connected with a plurality of control rods and is used for acquiring rod position voltages of the control rods; the output end of the signal acquisition unit is connected with the signal processing unit and is used for outputting the rod position voltages of the control rods to the signal processing unit;
the input end of the signal processing unit is connected with the output end of the signal acquisition unit and is used for identifying rod position voltages corresponding to a plurality of control rods and determining rod action states according to the rod position voltages; the output end of the signal processing unit is connected with the signal output unit and outputs a control signal generated according to the action state of the rod to the signal output unit.
2. The control rod stick motion signal generator as set forth in claim 1, further comprising: and the input end of the on-off switch is connected with the output end of the signal output unit, and the output end of the on-off switch is connected with the ADRC.
3. The control rod stick motion signal generator as set forth in claim 2, wherein the signal acquisition unit is provided with at least nine sets of control rod signal interfaces, each set of control rod signal interfaces being connected to one control rod, each set of control rod signal interfaces acquiring a connected control rod bit voltage, an output of each set of control rod signal interfaces being connected to the signal processing unit.
4. The control rod movement signal generator as set forth in claim 3, wherein the input terminals of the signal processing unit are respectively connected to the plurality of control rod signal interfaces to receive the control rod position voltage collected by each group of control rod signal interfaces.
5. The control rod stick motion signal generator as set forth in claim 4, wherein the input terminal of the signal output unit receives the control signal output from the signal processing unit, and the output terminal of the signal output unit outputs the control signal to the on-off switch.
6. The control rod motion signal generator as set forth in claim 5, wherein the on-off switch input receives a control signal, and is turned on or off according to the received control signal for controlling the turning on or off of the ADRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120530501.6U CN216311358U (en) | 2021-03-12 | 2021-03-12 | Stick moving signal generator of control rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120530501.6U CN216311358U (en) | 2021-03-12 | 2021-03-12 | Stick moving signal generator of control rod |
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| Publication Number | Publication Date |
|---|---|
| CN216311358U true CN216311358U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120530501.6U Active CN216311358U (en) | 2021-03-12 | 2021-03-12 | Stick moving signal generator of control rod |
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| CN (1) | CN216311358U (en) |
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2021
- 2021-03-12 CN CN202120530501.6U patent/CN216311358U/en active Active
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