CN218272655U - High-efficiency switching value channel testing device of high-temperature gas cooled reactor nuclear power plant - Google Patents
High-efficiency switching value channel testing device of high-temperature gas cooled reactor nuclear power plant Download PDFInfo
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- CN218272655U CN218272655U CN202221496642.1U CN202221496642U CN218272655U CN 218272655 U CN218272655 U CN 218272655U CN 202221496642 U CN202221496642 U CN 202221496642U CN 218272655 U CN218272655 U CN 218272655U
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Abstract
The application discloses high-efficient switching value channel test device of high temperature gas cooled reactor nuclear power plant, wherein, the device includes: the device comprises a channel testing module used for testing a high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant, and a conduction indicating module connected with the channel testing module in parallel and used for indicating the conduction state of a line. The method and the device can simplify the operation process, improve the working efficiency and reduce the risk of human error.
Description
Technical Field
The application relates to the field of equipment management of nuclear power plants, in particular to a high-efficiency switching value channel testing device of a high-temperature gas cooled reactor nuclear power plant.
Background
In the debugging and operating period of the instrument Control System of the current domestic high temperature gas cooled reactor nuclear power plant, including a Distributed Control System (DCS) Control System, a Programmable Logic Controller (PLC) Control System, etc., a schematic diagram of a System switching value channel function or Logic test is shown in fig. 1, and the general steps during the test are as follows:
1. firstly, finding out a wiring terminal of external wiring, and executing two-stage confirmation of a person and a guardian;
2. confirming the position of a jack of a meter pen of the universal meter, and striking the voltage gear position by the universal meter;
3. measuring the voltage of the wiring terminal by using a universal meter, and confirming the state of an external signal;
4. taking down the universal meter and finding out the short connecting wire;
5. shorting the external terminals using shorting wires.
Problems existing in the prior art:
1. the working steps are complicated, the working efficiency is low, and a long time is needed for testing one channel;
2. short circuit is easily caused by using a short circuit wire, and the risk of human error exists;
3. after being suitable for the short circuit line, because there is not pilot lamp on the short circuit line, the state after leading to the short circuit can't judge.
In summary, in the prior art, a universal meter is used for measuring system voltage, and although the universal meter has strong functions, if a wrong gear is used, short circuit and power skip are caused, so that the risk of human error exists; although the short-circuit wire analog signal can be used, the short-circuit wire does not have the current limiting function, if a wrong terminal is inserted, short-circuit and electricity skipping can be caused, and the risk of human error exists; after the short circuit, because no indicator light is arranged on the short circuit line, the state after the short circuit cannot be judged.
Content of application
The present application is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the device for testing the high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant aims to solve the problems that in the prior art, the high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant is low in working efficiency, high in human error risk and incapable of judging a short circuit state.
In order to achieve the above object, in one aspect, the present application provides an efficient switching value channel testing apparatus for a high temperature gas cooled reactor nuclear power plant, including:
the channel testing module is used for testing a high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant;
and the conduction indicating module is connected with the channel testing module in parallel and is used for indicating the conduction state of the line.
In one possible embodiment, the channel test module includes:
the first end is used for being connected with the terminal strip;
the first resistor is connected with the first end in series and is used for limiting current and preventing short circuit;
and the second end is connected with the first resistor in series and is used for being connected with the terminal strip.
In a possible embodiment, the first terminal comprises a terminal row plug.
In one possible embodiment, the first resistance comprises a 1000 ohm resistance.
In a possible embodiment, the second terminal comprises a stylus with an insulator and a pin tip for removable connection with the terminal block.
In a possible embodiment, the conduction indication module includes:
a diode for constructing a line that does not distinguish voltage polarities;
the light-emitting diode is connected with the diode in series, is used as an indicator lamp and is lightened after the circuit is conducted;
and the second resistor is connected with the light-emitting diode in series and is used for limiting current and preventing short circuit.
In one possible embodiment, the diodes comprise 4 diodes forming a bridge structure.
In one possible embodiment, the second resistance comprises a 5600 ohm resistance.
The beneficial effect of this application:
this application can direct measurement system voltage, instructs through the pilot lamp, does not have the gear and switches, can not cause the short circuit, can simplify operation technology, promotes work efficiency, reduces the risk of people because of the error.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a high efficiency switching capacity channel test of a high temperature gas cooled reactor nuclear power plant according to the prior art;
fig. 2 is a block diagram of a high-efficiency switching value channel testing device of a high-temperature gas cooled reactor nuclear power plant according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an efficient switching value channel testing device of a high temperature gas cooled reactor nuclear power plant according to an embodiment of the present application;
fig. 4 is a schematic diagram of an efficient switching value channel test of a high temperature gas cooled reactor nuclear power plant according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
The high-efficiency switching value channel test device for a high-temperature gas-cooled reactor nuclear power plant according to an embodiment of the present application will be described below with reference to the accompanying drawings, and first, the high-efficiency switching value channel test device for a high-temperature gas-cooled reactor nuclear power plant according to an embodiment of the present application will be described with reference to the accompanying drawings.
Fig. 2 is a block diagram of an efficient switching value channel testing apparatus 200 of a high temperature gas cooled reactor nuclear power plant according to an embodiment of the present disclosure.
As shown in fig. 2, the high-efficiency switching value channel testing apparatus 200 of the high temperature gas cooled reactor nuclear power plant includes:
and the channel testing module 210 is used for testing a high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant.
In the embodiment of the application, the channel testing module is used for testing the high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant. It should be noted that, the channel testing work of the high-efficiency switching value of the high-temperature gas cooled reactor nuclear power plant is usually performed on a conventional terminal block, so the channel testing module needs to be connected with the terminal block.
And the conduction indicating module 220 is connected in parallel with the channel testing module 210 and is used for indicating the conduction state of the line.
In the embodiment of the application, the conduction indicating module is connected with the channel testing module in parallel and used for indicating the conduction state of the line. When the line is turned on, the conduction indication module may send a prompt, for example, by sending a red light to indicate that the line is turned on, and when the line is turned off, the conduction indication module may send a prompt, for example, by not emitting light to indicate that the line is turned off.
In this application embodiment, can direct measurement system voltage, instruct through the pilot lamp, do not have the gear and switch, can not cause the short circuit, can simplify operation technology, promote work efficiency, reduce the risk of human error.
In one possible embodiment, the channel test module 210 includes:
a first end 211 for connection with a terminal block;
a first resistor 212 connected in series with the first terminal for limiting current and preventing short circuit;
a second terminal 213 connected in series with the first resistor for connection to a terminal block.
In the embodiment of the present application, as shown in fig. 3, the channel testing module 210 may include a first terminal 211, a first resistor 212, and a second terminal 213, wherein the first terminal may be used for connecting with the terminal strip, the second resistor may be connected in series with the first terminal for limiting current and preventing short circuit, and the second terminal may be connected in series with the first resistor and also for connecting with the terminal strip. That is to say, the first terminal, the first resistor and the second terminal are connected in series to form a channel testing module, and the channel testing module is used for testing a high-efficiency switching value channel of a high-temperature gas cooled reactor nuclear power plant.
In one possible embodiment, the first header comprises a terminal strip plug.
In the embodiment of the application, considering that the high-efficiency switching value channel test work of the high-temperature gas cooled reactor nuclear power plant is generally carried out on a conventional terminal block, the first terminal can adopt a terminal block plug for realizing reliable connection with the terminal block.
In one possible embodiment, the first resistance comprises a 1000 ohm resistance.
In the embodiment of the application, considering that the high-efficiency switching value channel testing device of the high-temperature gas-cooled reactor nuclear power plant should have a current-limiting short-circuit prevention function under a conventional voltage level of 48 volts or 24 volts and should ensure sufficient conduction current on the basis of current-limiting short-circuit prevention to drive a related control system, the first resistor may adopt a 1000 ohm resistor, so that the line current is limited below 100 milliamperes and above 10 milliamperes, and the actual maximum circulation current is 50 milliamperes (48 volts)/25 milliamperes (24 volts).
It should be noted that, because the resistance does not distinguish the polarity, the high-efficiency switching value channel testing device of the high-temperature gas cooled reactor nuclear power plant can have the current-limiting and short-circuit-preventing functions after the voltage directions at the two ends are measured and changed.
In a possible embodiment, the second terminal comprises a stylus with an insulator and a pin-shaped tip for removable connection with the terminal block.
In the embodiment of the application, in consideration of the requirement of convenient mobile test of the high-efficiency switching value channel test device of the high-temperature gas cooled reactor nuclear power plant, the second end can adopt a meter pen, and the meter pen can be provided with an insulator and a needle-shaped end head, so that the movable connection with the terminal strip is realized.
In a possible embodiment, the conduction indication module 220 includes:
a diode for constructing a line that does not distinguish a polarity of a voltage;
the light-emitting diode is connected with the diode in series, is used as an indicator lamp and is lightened after the circuit is conducted;
and the second resistor is connected with the light emitting diode in series and is used for limiting current and preventing short circuit.
In the embodiment of the present application, as also shown in fig. 3, the conduction indication module 220 includes diodes 221, 222, 223, and 224, and a light emitting diode 225 and a second resistor 226, wherein the diodes 221, 222, 223, and 224 may be used to construct a line that does not distinguish voltage polarity, the light emitting diode may be connected in series with the diodes for indicating a lamp, and may be lit after the line is conducted, and the second resistor may be connected in series with the light emitting diode for current limiting and short circuit prevention. That is to say, the diode, the light emitting diode and the second resistor form a conduction indicating module of the high-efficiency switching value channel testing device of the high-temperature gas cooled reactor nuclear power plant, and the conduction indicating module is used for indicating the conduction state of the line.
It should be noted that, in consideration of the requirements of small volume and high reliability of the indicator light, the indicator light may be a light emitting diode.
In one possible embodiment, the diodes comprise 4 diodes forming a bridge structure.
In the embodiment of the application, a line without voltage polarity differentiation can form a line with a bridge structure through 4 diodes, so that the line can still be conducted after the voltage directions at two ends of a test of the high-efficiency switching value channel test device of the high-temperature gas cooled reactor nuclear power plant are changed, and an indicator lamp can still be lighted.
In one possible embodiment, the second resistance comprises a 5600 ohm resistance.
In the embodiment of the present application, the second resistor may be a 5600 ohm resistor, so that the current limiting function can be provided to prevent short circuit even after the diode breaks down.
It should be noted that, as can be seen from the above, the high-efficiency switching value channel testing device for the high-temperature gas cooled reactor nuclear power plant includes components such as diodes, light emitting diodes, resistors, a meter pen, and a terminal strip plug, and all of the components are conventional components, and have no complex digital circuit and high reliability.
It should be noted that, in terms of functional parameters and corresponding characteristics, the high-efficiency switching value channel testing device of the high-temperature gas-cooled reactor nuclear power plant is not limited to the current direction, can be used for alternating current or direct current, can also be used for testing whether 24-48 v alternating current or direct current voltage exists, has an indication function, can light a light-emitting diode when voltage (current) exists, can also be used for short-circuit occasions, and has the functions of current limiting and short-circuit preventing, and the maximum circulating current is 50 milliamperes (48 volts)/25 milliamperes (24 volts). In addition, the high-efficiency switching value channel testing device of the high-temperature gas cooled reactor nuclear power plant is portable and convenient to operate, and a terminal strip plug is arranged at one end of the high-temperature gas cooled reactor nuclear power plant, and a meter pen is arranged at the other end of the high-temperature gas cooled reactor nuclear power plant, so that the high-efficiency switching value channel testing device is convenient to move and measure, and is shown in fig. 4.
It should be noted that the circuit principle of the high-efficiency switching value channel testing device of the high-temperature gas cooled reactor nuclear power plant includes:
1. current direction is not limited: when the meter pen (211) measures the positive end of the power supply, current flows in the directions of the meter pen (211), the diode (222), the light-emitting diode (225), the diode (223), the resistor (226) and the meter pen (213), and the light-emitting diode (225) can be lightened; when the current direction is opposite, namely the stylus (213) measures the positive end of the power supply, the current flows in the directions of the stylus (213), the resistor (226), the diode (224), the light-emitting diode (225), the diode (221) and the stylus (211), and the light-emitting diode (225) can also be lightened;
2. short circuit prevention: when the high-efficiency switching value channel testing device of the high-temperature gas cooled reactor nuclear power plant works, one path of small current flows in the direction, the resistance value is about 5600 ohm, the other path of large current flows through the resistor (212), the resistance value is 1000 ohm, the total maximum flowing current is 50 milliampere (48 volts)/25 milliampere (24 volts), the input card can be driven to work, and the short-circuit prevention function is achieved.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (8)
1. A high-efficiency switching value channel testing device of a high-temperature gas cooled reactor nuclear power plant is characterized by comprising:
the channel testing module is used for testing a high-efficiency switching value channel of the high-temperature gas cooled reactor nuclear power plant;
and the conduction indicating module is connected with the channel testing module in parallel and is used for indicating the conduction state of the line.
2. The apparatus of claim 1, wherein the channel test module comprises:
a first terminal for connection with a terminal block;
the first resistor is connected with the first end in series and is used for limiting current and preventing short circuit;
and the second end is connected with the first resistor in series and is used for being connected with the terminal strip.
3. The apparatus of claim 2, wherein the first header comprises a terminal array plug.
4. The apparatus of claim 2, wherein the first resistance comprises a 1000 ohm resistance.
5. The apparatus of claim 2 wherein said second terminal comprises a stylus with an insulator and a pin tip for removable connection with said terminal block.
6. The apparatus of claim 1, wherein the conduction indication module comprises:
a diode for constructing a line that does not distinguish voltage polarities;
the light-emitting diode is connected with the diode in series, is used as an indicator lamp and is lightened after the circuit is conducted;
and the second resistor is connected with the light-emitting diode in series and is used for limiting current and preventing short circuit.
7. The apparatus of claim 6, wherein the diodes comprise 4 diodes forming a bridge structure.
8. The apparatus of claim 7, wherein the second resistance comprises a 5600 ohm resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221496642.1U CN218272655U (en) | 2022-06-15 | 2022-06-15 | High-efficiency switching value channel testing device of high-temperature gas cooled reactor nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221496642.1U CN218272655U (en) | 2022-06-15 | 2022-06-15 | High-efficiency switching value channel testing device of high-temperature gas cooled reactor nuclear power plant |
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| Publication Number | Publication Date |
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| CN218272655U true CN218272655U (en) | 2023-01-10 |
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| CN202221496642.1U Active CN218272655U (en) | 2022-06-15 | 2022-06-15 | High-efficiency switching value channel testing device of high-temperature gas cooled reactor nuclear power plant |
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- 2022-06-15 CN CN202221496642.1U patent/CN218272655U/en active Active
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