CN219417592U - Direct current measuring device of large-current structural member of nuclear power station - Google Patents
Direct current measuring device of large-current structural member of nuclear power station Download PDFInfo
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- CN219417592U CN219417592U CN202320433482.4U CN202320433482U CN219417592U CN 219417592 U CN219417592 U CN 219417592U CN 202320433482 U CN202320433482 U CN 202320433482U CN 219417592 U CN219417592 U CN 219417592U
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Abstract
The utility model relates to a direct current measuring device of a large current structural member of a nuclear power station, which comprises: the device comprises a heavy current acquisition module, a conversion module connected with the heavy current acquisition module, a control module connected with the conversion module and a display module connected with the control module; the high-current acquisition module detects direct current of a high-current structural member of the nuclear power station and outputs a current detection signal; the conversion module is used for carrying out conversion processing on the current detection signal and outputting a digital signal; the control module receives the digital signal and outputs current data after processing the digital signal; the display module receives the current data and displays the current data. According to the utility model, the direct current of the heavy current structural member of the nuclear power station is detected by adopting the heavy current acquisition module, so that the problem that the existing nuclear power station lacks direct current measuring equipment of the heavy current structural member is solved, the current of the heavy current structural member can be effectively detected and inspected, and the current overload risk is avoided.
Description
Technical Field
The utility model relates to the technical field of operation and maintenance of nuclear power stations, in particular to a direct current measuring device of a large current structural member of a nuclear power station.
Background
Some electrical devices of the nuclear power plant output high-power direct current, for example, the rectifying current of a CTE system (a chlorine generating station electrolytic seawater system) of the nuclear power plant is up to 6000A or more, and the devices need to continuously operate for a long time, so that if errors exist in measurement, huge influence can be caused on operating devices, and the devices can be damaged due to long-time overload operation and long-time overheating of the devices.
There are few, if any, direct current measuring instruments on the market that measure large sizes on the order of 1 kiloampere, and generally alternating current. Because the nuclear power station lacks the direct current measuring equipment of the ten thousand ampere-level large-size large-current structural member, the current of the chlorine production equipment cannot be effectively verified, and the current overload risk of the system equipment is extremely high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a direct current measuring device of a high-current structural member of a nuclear power station.
The technical scheme adopted for solving the technical problems is as follows: a direct current measurement device for constructing a high current structural member of a nuclear power station, comprising: the device comprises a large current acquisition module, a conversion module connected with the large current acquisition module, a control module connected with the conversion module and a display module connected with the control module;
the high-current acquisition module detects direct current of a high-current structural member of the nuclear power station and outputs a current detection signal;
the conversion module performs conversion processing on the current detection signal and outputs a digital signal;
the control module receives the digital signal and processes the digital signal to output current data;
the display module receives the current data and displays the current data.
In the direct current measurement device of the high-current structural member of the nuclear power station, the high-current acquisition module is a high-current Hall sensor;
the high-current Hall sensor detects direct current of the high-current structural member and converts the direct current into a voltage analog signal; the voltage analog signal is the current detection signal.
In the direct current measuring device of the high-current structural member of the nuclear power station, the conversion module is an A/D analog-to-digital converter;
the A/D analog-to-digital converter performs analog-to-digital conversion processing on the voltage analog signal and outputs the digital signal.
In the direct current measurement device of the high current structural member of the nuclear power station, the control module comprises: and a singlechip.
In the direct current measuring device of the large current structural member of the nuclear power station, the singlechip is respectively connected with the conversion module and the display module, and the singlechip carries out mean value processing on digital signals within a set time period to obtain the current data.
The direct current measuring device of the high-current structural member of the nuclear power station further comprises: and the power supply module is connected with the control module and used for providing electric energy.
In the direct current measurement device of the high-current structural member of the nuclear power station, the power supply module comprises a rechargeable lithium battery.
The direct current measuring device of the high-current structural member of the nuclear power station further comprises: a mode selection switch connected with the control module;
the mode selection switch outputs a mode signal to the control module according to the selection operation of a user.
In the direct current measurement device of the high-current structural member of the nuclear power station, the mode selection switch is a toggle switch.
In the direct current measurement device of the heavy current structural member of the nuclear power station, the display module comprises: any one of an LCD display screen, an LED display screen and an AMOLED display screen.
The direct current measuring device for the large current structural member of the nuclear power station has the following beneficial effects: comprising the following steps: the device comprises a heavy current acquisition module, a conversion module connected with the heavy current acquisition module, a control module connected with the conversion module and a display module connected with the control module; the high-current acquisition module detects direct current of a high-current structural member of the nuclear power station and outputs a current detection signal; the conversion module is used for carrying out conversion processing on the current detection signal and outputting a digital signal; the control module receives the digital signal and outputs current data after processing the digital signal; the display module receives the current data and displays the current data. According to the utility model, the direct current of the heavy current structural member of the nuclear power station is detected by adopting the heavy current acquisition module, so that the problem that the existing nuclear power station lacks direct current measuring equipment of the heavy current structural member is solved, the current of the heavy current structural member can be effectively detected and inspected, and the current overload risk is avoided.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic block diagram of a DC current measurement device for a high-current structural member of a nuclear power plant according to an embodiment of the present utility model;
fig. 2 is a circuit diagram of a direct current measurement device of a high current structural member of a nuclear power station according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In a preferred embodiment, as shown in fig. 1, the present utility model provides a direct current measurement device for a heavy current structural member of a nuclear power plant, which can measure direct current of the heavy current structural member in the nuclear power plant. Wherein the high current structural members in the nuclear power plant may include, but are not limited to, transformers in the nuclear power plant, CTE systems of the nuclear power plant, and the like.
Specifically, as shown in fig. 1, the direct current measurement device of the heavy current structural member of the nuclear power station includes: the high-current collection module 10, the conversion module 20 connected with the high-current collection module 10, the control module 30 connected with the conversion module 20 and the display module 40 connected with the control module 30.
The high-current acquisition module 10 detects direct current of a high-current structural member of the nuclear power station and outputs a current detection signal; the conversion module 20 performs conversion processing on the current detection signal and outputs a digital signal; the control module 30 receives and processes the digital signal and outputs current data; the display module 40 receives the current data and displays the current data.
The utility model can realize the measurement of the direct current of the heavy current structural member of the nuclear power station by adopting the heavy current acquisition module 10, and can compare the measured direct current with the actual current of the heavy current structural member of the nuclear power station to be detected by displaying the measured direct current through the display module 40, thereby realizing the verification of the heavy current structural member and avoiding the current overload of the heavy current structural member.
Alternatively, in the embodiment of the present utility model, the high-current collecting module 10 is a high-current hall sensor. The high-current Hall sensor detects direct current of a high-current structural member and converts the direct current into a voltage analog signal; the voltage analog signal is a current detection signal.
Specifically, the high-current Hall sensor selected by the utility model can be a large-caliber large-range Hall current transformer, and can realize the measurement of direct current of a large-size high-current structural member. In a preferred embodiment, the high-current hall sensor can measure a direct current of 0-10000A, and can convert the direct current of 0-10000A into a voltage signal (i.e. a voltage analog signal) of 0-5V, and the voltage signal of 0-5V is connected to the conversion module 20 and converted into a corresponding digital signal by the conversion module 20.
Optionally, in an embodiment of the present utility model, the conversion module 20 is an a/D analog-to-digital converter. The A/D converter carries out analog-digital conversion processing on the voltage analog quantity signal and outputs a digital signal. The voltage module quantity signal output by the high-current Hall sensor can be converted into a digital signal through the A/D analog-to-digital converter and sent to the control module 30 in real time. The a/D converter may be a separate converter, or may be integrated into the control module 30.
Optionally, in an embodiment of the present utility model, the control module 30 includes: and a singlechip. The singlechip is respectively connected with the conversion module 20 and the display module 40. The singlechip performs mean value processing on the digital signals in a set time period to obtain current data.
Specifically, when the measured current has a large fluctuation, for example, the current value of the rectifying device of the chlorine generating system changes in real time, which causes the current value measured by the high-current hall sensor to always fluctuate, and the effective value of the direct current cannot be actually displayed at this time. Thus, the method is applicable to a variety of applications. In order to ensure that the direct current can be accurately displayed, in the embodiment of the utility model, a time period (i.e. a set time period) can be preset by the singlechip, taking 1s as an example, the digital signal output by the A/D converter is measured every 1ms, and 1000 times of measurement data are added and divided by 1000 to obtain a current average value within 1s, wherein the current average value is the current data output to the display module 40, i.e. the singlechip sends the current data to the display module 40 every 1s so as to update the current data in the display module 40.
Further, in an embodiment of the present utility model, the direct current measurement device of the heavy current structural member of the nuclear power station further includes: and a power supply module 50 connected to the control module 30 for supplying power. Optionally, the power module 50 comprises a rechargeable lithium battery. In particular, in order to make the equipment portable and easy to use, the utility model adopts the rechargeable lithium battery to supply power, and is also provided with a charging interface, so that the lithium battery can be charged regularly, and the current can be recycled. The lithium battery can provide the equipment with the working time of not less than 90 minutes.
Further, in an embodiment of the present utility model, the direct current measurement device of the heavy current structural member of the nuclear power station further includes: a mode selection switch 60 connected to the control module 30; the mode selection switch 60 outputs a mode signal to the control module 30 according to a selection operation of a user.
Optionally, the mode selection switch 60 is a toggle switch. Specifically, the mode selection switch 60 may output a corresponding trigger signal to the singlechip according to a toggle operation of a user, and the singlechip determines a mode corresponding to the trigger signal according to the received trigger signal, and performs corresponding measurement operation control according to the determined mode.
Optionally, in the embodiment of the present utility model, the display module 40 includes a display screen, which may be selected from but not limited to: any one of an LCD display screen, an LED display screen and an AMOLED display screen.
In a preferred embodiment, as shown in fig. 2, a circuit diagram of a direct current measurement device of a high current structural member of a nuclear power station is provided. In this embodiment, the a/D analog to digital converter is integrated in a single chip microcomputer (ARD 1).
In this embodiment, the single-chip microcomputer may be of the model ATMERA328, and of course, it is understood that the single-chip microcomputer adopted in the present utility model may also be of other existing models, not limited to the model, as long as the same function can be achieved.
Specifically, as shown in fig. 2, B1 is a rechargeable lithium battery, which can provide a voltage of 12V. Further, in order to ensure the stability of the measuring device, a regulated power supply 70 (i.e. U1 in fig. 2) may also be provided.
In this embodiment, as shown in fig. 2, the voltage signal output by the high-current hall sensor is transmitted to the 14 th pin of the single-chip microcomputer through A0, and after being subjected to the analog-to-digital conversion internally by the single-chip microcomputer, the voltage signal is transmitted to the 14 th pin, the 13 th pin, the 12 th pin and the 11 th pin of the display screen LCD1 through the 4 th pin, the 5 th pin, the 6 th pin and the 7 th pin of the single-chip microcomputer, and is displayed by the display screen LCD 1. In this embodiment, the display screen used may be a display screen of LM 016L.
As shown in fig. 2, in this embodiment, the mode selection switch 60 may provide four measurement modes of 1000A, 2000A, 4000A, 10000A, and when the mode selection switch 60 toggles to the corresponding position, the 10 th pin and the 9 th pin of the single chip microcomputer receive the corresponding mode selection signals, and then select the corresponding measurement modes according to the received mode selection signals.
Further, as shown in fig. 2, the direct current measuring device of the high current structural member of the nuclear power station further includes a buzzer (BUZ 1) for performing an alarm. Specifically, when the corresponding position is selected by the mode selection switch 60 (e.g., 1000A), if the real-time measurement is selected to be greater than 1000A, the buzzer outputs an alarm.
The direct current measuring device of the large current structural member of the nuclear power station can solve the problem that the current nuclear power station cannot measure direct current large current equipment, can effectively and timely check the operation current of a CTE system of the nuclear power station, is relatively low in common cost, can effectively solve the problem that the direct current cannot be measured in a portable mode at any time, and can prevent the rectifying and transforming equipment from being damaged again.
Further, the direct current measuring device of the large current structural member of the nuclear power station can be handheld portable equipment, so that the field operation is convenient, the one-key operation is convenient, and human error can be effectively avoided.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same according to the content of the present utility model, and not to limit the scope of the present utility model. All equivalent changes and modifications made with the scope of the claims should be covered by the claims.
Claims (10)
1. A direct current measurement device for a heavy current structural member of a nuclear power plant, comprising: the device comprises a large current acquisition module, a conversion module connected with the large current acquisition module, a control module connected with the conversion module and a display module connected with the control module;
the high-current acquisition module detects direct current of a high-current structural member of the nuclear power station and outputs a current detection signal;
the conversion module performs conversion processing on the current detection signal and outputs a digital signal;
the control module receives the digital signal and processes the digital signal to output current data;
the display module receives the current data and displays the current data.
2. The direct current measurement device of a high current structural member of a nuclear power plant according to claim 1, wherein the high current acquisition module is a high current hall sensor;
the high-current Hall sensor detects direct current of the high-current structural member and converts the direct current into a voltage analog signal; the voltage analog signal is the current detection signal.
3. The direct current measurement device of a high current structural member of a nuclear power plant according to claim 2, wherein the conversion module is an a/D analog-to-digital converter;
the A/D analog-to-digital converter performs analog-to-digital conversion processing on the voltage analog signal and outputs the digital signal.
4. The direct current measurement device of a high current structural member of a nuclear power plant according to claim 1, wherein the control module comprises: and a singlechip.
5. The direct current measurement device of the large current structural member of the nuclear power station according to claim 4, wherein the single chip microcomputer is respectively connected with the conversion module and the display module, and the single chip microcomputer obtains the current data after carrying out mean value processing on digital signals in a set time period.
6. The direct current measurement device of a high current structural member of a nuclear power plant according to any one of claims 1 to 5, further comprising: and the power supply module is connected with the control module and used for providing electric energy.
7. The direct current measurement device of a high current structural member of a nuclear power plant according to claim 6, wherein said power supply module comprises a rechargeable lithium battery.
8. The direct current measurement device of a high current structural member of a nuclear power plant according to any one of claims 1 to 5, further comprising: a mode selection switch connected with the control module;
the mode selection switch outputs a mode signal to the control module according to the selection operation of a user.
9. The direct current measurement device of a high current structural member of a nuclear power plant according to claim 8, wherein the mode selection switch is a toggle switch.
10. The direct current measurement device of a high current structural member of a nuclear power plant according to claim 1, wherein the display module includes: any one of an LCD display screen, an LED display screen and an AMOLED display screen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433482.4U CN219417592U (en) | 2023-03-08 | 2023-03-08 | Direct current measuring device of large-current structural member of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433482.4U CN219417592U (en) | 2023-03-08 | 2023-03-08 | Direct current measuring device of large-current structural member of nuclear power station |
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| Publication Number | Publication Date |
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| CN219417592U true CN219417592U (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320433482.4U Active CN219417592U (en) | 2023-03-08 | 2023-03-08 | Direct current measuring device of large-current structural member of nuclear power station |
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| CN (1) | CN219417592U (en) |
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- 2023-03-08 CN CN202320433482.4U patent/CN219417592U/en active Active
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