CN214845716U - Detection apparatus for nuclear power station containment leakage rate measurement return circuit - Google Patents
Detection apparatus for nuclear power station containment leakage rate measurement return circuit Download PDFInfo
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- CN214845716U CN214845716U CN202022716939.1U CN202022716939U CN214845716U CN 214845716 U CN214845716 U CN 214845716U CN 202022716939 U CN202022716939 U CN 202022716939U CN 214845716 U CN214845716 U CN 214845716U
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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
Abstract
The utility model relates to a detection apparatus of nuclear power station containment leakage rate measurement circuit. The detection device includes: an input device for inputting a switch control signal; the control device is connected with the input device and used for outputting a switching instruction according to the switching control signal; the first ends of the first switches are connected in parallel and then connected with the control device, the second ends of the first switches are respectively connected with the wire cores of the transmitting end in a one-to-one correspondence mode, the first switches M are connected with the wire cores M of the transmitting end, and when the first switches M are switched on, the rest first switches are switched off; the first ends of the second switches are connected in parallel and then connected with the control device, the second ends of the second switches are respectively connected with the receiving end wire cores in a one-to-one correspondence mode, the second switches M are connected with the receiving end wire cores M, and when the second switches M are switched on, the rest of the second switches are switched off; the control device is used for sending a first state instruction when the first switch M and the second switch M are conducted to form a loop. The test efficiency is high, the operation steps are simple, and the required test space is small.
Description
Technical Field
The utility model relates to a nuclear power technical field especially relates to a detection apparatus of nuclear power station containment leakage rate measurement circuit.
Background
The containment leakage rate measurement network is used for guiding gas parameters in the nuclear island to a main control duty room through an electric penetrating piece during a containment test period, and is used for calculating and analyzing the gas during the test period. The sensor comprises 70 temperature sensors and 15 humidity sensors, cables of the sensor box are firstly collected to a line concentration box, then the line concentration box is connected to an electric penetration piece, and finally the cables are collected into a special line concentration cabinet of a containment duty room. The cable laying is conducted through multiple switching of the multiple line concentration boxes and the electric penetration pieces, the leakage rate calculation result during the test is influenced due to the fact that the cable is connected in a cross mode in the multiple switching process, and therefore before the containment vessel pressure test, the compliance of the containment vessel leakage rate measurement network needs to be verified.
The containment leakage rate measuring network is connected by 7-core or 19-core aviation plugs, and typically, when the compliance of the leakage rate measuring network is verified, a multimeter needle and a sound power telephone are adopted, specifically, the multimeter needle is sequentially inserted into the wire cores of the aviation plugs, if the termination is not problematic, the two sound power telephones can establish communication for conversation, otherwise, the termination is wrong.
However, in this inspection method, testers are respectively located in the nuclear island and the master control duty room, and when the cable to be tested is connected incorrectly, the voice-powered telephone cannot form a loop, that is, the testers cannot communicate with each other, which seriously affects the test efficiency. Moreover, the consistency of the cable terminations of a plurality of line concentration boxes in the nuclear island and the master control duty room integrated cabinet needs to be verified through the conformity verification of the leakage rate measurement network, the line concentration boxes in the nuclear island are not easy to approach, and the field test progress can be seriously influenced by complicated operation steps.
SUMMERY OF THE UTILITY MODEL
Therefore, the containment leakage rate measuring circuit for the nuclear power plant has the advantages that the containment leakage rate measuring circuit is simple in structure and low in cost.
A detection device for a nuclear power station containment leakage rate measurement circuit comprises:
an input device for inputting a switch control signal;
the control device is connected with the input device and used for outputting a switching instruction according to the switching control signal;
the first ends of the first switches are connected in parallel and then connected with the control device, the second ends of the first switches are respectively connected with the wire cores of the transmitting end in a one-to-one correspondence mode, the first switches M are connected with the wire cores M of the transmitting end, the first switches are used for being switched on or switched off according to a switch instruction, and when the first switches M are switched on, the rest first switches are switched off;
the first ends of the second switches are connected in parallel and then connected with the control device, the second ends of the second switches are respectively connected with the wire cores of the receiving end in a one-to-one correspondence mode, the second switches M are connected with the wire cores M of the receiving end, the second switches are used for being switched on or off according to switching instructions, and when the second switches M are switched on, the rest of the second switches are switched off; the control device is used for sending a first state instruction when the first switch M and the second switch M are conducted to form a loop.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
one end of the first normally closed switch is connected with the control device, and the other end of the first normally closed switch is connected with the transmitting end shielding wire;
and one end of the second normally-closed switch is connected with the control device, and the other end of the second normally-closed switch is connected with the receiving end shielding wire.
In one embodiment, the input device includes:
the serial port screen is connected with the control device and used for displaying a first state according to the first state instruction;
the first normally closed switch, the second normally closed switch, the first switch and the second switch at least comprise one of a relay, a triode and an MOS (metal oxide semiconductor) tube.
In one embodiment, the control device includes a first single chip connected to the first end of the first switch and a second single chip connected to the first end of the second switch, and the input device further includes:
the first communication synchronization button is connected with the first singlechip and used for sending a first communication signal for establishing communication connection;
and the second communication synchronization button is connected with the second singlechip and used for sending a second communication signal for establishing communication connection.
In one embodiment, the switch control signal comprises an automatic switch control signal, and the input device comprises:
and the automatic checking button is connected with the control device and used for sending an automatic checking signal and an automatic switch control signal to the control device.
In one embodiment, the switch control signal comprises a manual switch control signal, and the input device comprises:
the manual checking button is connected with the control device and used for sending a manual checking signal to the control device;
the channel selection button is connected with the control device and is used for inputting a first switch N and a second switch N which need to be controlled;
and the channel switching button is respectively connected with the channel selecting button and the control device and is used for sending a manual switch control signal for simultaneously controlling the first switch N and the second switch N to be switched on and the rest of first switches and the rest of second switches to be switched off to the control device.
In one embodiment, the manual verification button comprises:
the first manual checking button is connected with the first single chip microcomputer and used for sending a manual checking signal to the first single chip microcomputer;
the second manual checking button is connected with the second single chip microcomputer and used for sending a manual checking signal to the second single chip microcomputer;
the select channel button includes:
the first channel selection button is used for inputting a first switch N to be controlled;
the second channel selection button is used for inputting a second switch N required to be controlled;
the channel switching button includes:
the first channel switching button is connected with the first channel selecting button and the first single chip microcomputer and used for sending a manual switch control signal for controlling the first switch N to be switched on and the rest of the first switches to be switched off to the first single chip microcomputer;
and the second channel switching button is connected with the second channel selecting button and the second single chip microcomputer and is used for sending a manual switch control signal for controlling the second switch N to be switched on and the rest of the second switches to be switched off to the second single chip microcomputer, wherein the second switch N and the first switch N are simultaneously switched on.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
the first reset device is connected with the first singlechip and used for outputting a first reset signal; the first singlechip is used for outputting a first reset instruction for controlling the conduction of the first normally closed switches and controlling the turn-off of each first switch according to the first reset signal;
the second reset device is connected with the second singlechip and is used for outputting a second reset signal; the second singlechip is used for outputting a second reset instruction for controlling the second normally closed switches to be switched on and controlling the second switches to be switched off according to a second reset signal.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
the transmitting aviation socket is positioned between the transmitting end wire core and the first switch, and between the transmitting end shielding wire and the first normally closed switch;
and the receiving aviation socket is positioned between the receiving end wire core and the second switch, and between the receiving end shielding wire and the second normally closed switch.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
and the timer is connected with the control device and used for sending the PWM signal to the control device, and the control device is used for sending the received switching instruction to the first switch and the second switch according to the PWM signal.
In the detection device for the containment leakage rate measurement loop of the nuclear power station, the control device outputs a switch instruction to the first switch and the second switch according to a switch control signal input by the input device, the first switch M connected with the transmitting end wire core M and the second switch M connected with the receiving end wire core M are switched on according to the switch instruction, the rest first switches and the rest second switches are switched off according to the switch instruction, when the first switch M and the second switch M are switched on to form a loop, the control device sends a first state instruction, when the first switch M and the second switch M are switched on, the rest first switches and the rest second switches are switched off, and when the control device sends the first state instruction, the transmitting end wire core M connected with the first switch M and the receiving end wire core M connected with the second switch M are connected together, otherwise, the transmitting end wire core M connected with the first switch M and the receiving end wire core M connected with the second switch M are not connected together, after the detection device inputs a switch control signal, whether the transmitting end wire core M and the receiving end wire core M are correctly connected together can be detected by judging whether the control device sends a first state instruction, the test efficiency is high, the operation steps are simple, the required test space is small, and whether the transmitting end wire core M in a box which is not easy to approach in a containment factory building and the receiving end wire core M in a containment leakage rate measurement room are correctly connected can be quickly and accurately detected.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of a detection apparatus of a containment leakage rate measurement circuit of a nuclear power plant in embodiment 1;
fig. 2 is a block diagram of a detection apparatus of a containment leak rate measurement circuit of a nuclear power plant in embodiment 2;
fig. 3 is a block diagram of a detection apparatus of a containment leak rate measurement circuit of a nuclear power plant in embodiment 3;
FIG. 4 is a block diagram of a detection apparatus for a containment leak rate measurement circuit of a nuclear power plant according to embodiment 4;
fig. 5 is a diagram of a detection device of the nuclear power plant containment leakage rate measurement circuit corresponding to fig. 4.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. The first resistance and the second resistance are both resistances, but they are not the same resistance.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
Typically, when the network conformity verification of leakage rate measurement is carried out, universal meter needles and acoustic power telephones are adopted, firstly, four testers are divided into two groups to be located in a nuclear island and a master control duty room, the universal meter needles are sequentially inserted into wire cores of an aviation plug, whether the termination is normal or not is confirmed by the acoustic power telephones for testing, if the termination is not in a problem, the two acoustic power telephones can establish communication for conversation, if the cable to be tested is in a wrong termination, the acoustic power telephones cannot form a loop, namely, the testers cannot communicate, and the testing efficiency is seriously influenced.
Secondly, during the test, a universal meter needle is inserted into the position of the aviation plug wire core, the aviation plug wire core is abnormally matched with the aviation plug wire core in a normal plugging mode, and the serious influence of poor contact of the plug wire core during the test due to the fact that the diameter of the wire core is widened during the plugging process exists. In addition, during the test, the consistency between the termination of 85 box cables in the nuclear island and the integrated cabinet in the main control duty room is required to be verified, and the positions of the partial boxes in the nuclear island are not easy to approach, so that the complicated operation steps seriously influence the field test progress.
Referring to fig. 1, a block diagram of a detection apparatus of a containment leakage rate measurement circuit in a nuclear power plant according to an embodiment is shown.
In view of the above problem, the present application provides a detection apparatus for a containment leakage rate measurement circuit of a nuclear power plant, as shown in fig. 1, the detection apparatus includes: an input device 10, a control device 20, a number of first switches 30 and a number of second switches 40.
The input device 10 is used for inputting a switch control signal for controlling the first switch 30 and the second switch 40 to be switched on and off to the control device 20;
the control device 20 is connected with the input device 10 and used for outputting a switching instruction according to the switching control signal; that is, the control device 20 receives the switch control signal input from the input device 10, and outputs the same switch command to the first switch 30 and the second switch 31 at the same time according to the switch control signal.
The first ends of the first switches 30 are connected in parallel and then connected with the control device 20, the second ends of the first switches 30 are respectively connected with the transmitting end wire cores 40 in a one-to-one correspondence manner, wherein the first switches M are connected with the transmitting end wire cores M, the first switches 30 are used for being switched on or switched off according to a switch instruction, and when the first switches M are switched on, other first switches 30 are switched off.
As shown in fig. 1, the first end of the first switch 1 is connected to the control device 20, the second end of the first switch 1 is connected to the transmitting end core 1, the first end of the first switch 2 is connected to the control device 20, the second end of the first switch 2 is connected to the transmitting end core 2, and so on, the first end of the first switch M is connected to the control device 20, the second end of the first switch M is connected to the transmitting end core M, the first end of the first switch N is connected to the control device 20, the second end of the first switch N is connected to the transmitting end core N, and the transmitting end core is located at the transmitting end.
The first ends of the second switches 31 are connected in parallel and then connected with the control device 20, the second ends of the second switches 31 are respectively connected with the receiving end wire cores 41 in a one-to-one correspondence manner, wherein the second switches M are connected with the receiving end wire cores M, the second switches 31 are used for being switched on or off according to a switch instruction, and when the second switches M are switched on, the rest of the second switches 31 are switched off; the control device is used for sending a first state instruction when the first switch M and the second switch M are conducted to form a loop.
As shown in fig. 1, a first end of the second switch 1 is connected to the control device 20, a second end of the second switch 1 is connected to the receiving end wire core 1, a first end of the second switch 2 is connected to the control device 20, a second end of the second switch 2 is connected to the receiving end wire core 2, and so on, a first end of the second switch M is connected to the control device 20, a second end of the second switch M is connected to the receiving end wire core M, a first end of the second switch N is connected to the control device 20, a second end of the second switch N is connected to the receiving end wire core N, and the receiving end wire core is located at the receiving end.
The first switch M and the second switch M are simultaneously turned on or off according to the received switching command, and when the first switch M and the second switch M are turned on, the remaining first switches 30 and the remaining second switches 31 are turned off. The transmitting end shielding wire and the receiving end shielding wire are connected together, if the transmitting end wire core M is connected with the receiving end wire core M, a loop can be formed when the first switch M and the second switch M are simultaneously conducted, and at the moment, the control device 20 sends a first state instruction representing the connection of the transmitting end wire core M and the receiving end wire core M. When first switch M and second switch M switch on simultaneously, whether send first state instruction through controlling means 20, can judge that transmitting terminal sinle silk M is connected with receiving terminal sinle silk M.
In one embodiment, the first status instruction includes a voice instruction, a light instruction, and the like.
In one embodiment, when the first switch M and the second switch M are turned on simultaneously, if no loop is formed, the control device 20 sends a second status command, for example, a red display command, indicating that the transmitting end wire core M and the receiving end wire core M are not connected.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
a first normally closed switch 50 having one end connected to the control device 20 and the other end connected to the transmitting end shield wire 60;
the second normally closed switch 51 has one end connected to the control device 20 and the other end connected to the receiving-end shield wire 61.
The first normally-closed switch 50 and the second normally-closed switch 51 are always in a conductive state, and the transmitting-side shielded wire 60 and the receiving-side shielded wire 61 are connected together. The connection of a loop of long-distance communication between a nuclear island (transmitting end) and a duty room (receiving end) can be completed by using the shielding wires of the transmitting end shielding wire 60 and the receiving end shielding wire 61.
As shown in fig. 2, in one embodiment, the input device 10 includes:
and the serial port screen 102 is connected with the control device 20 and is used for performing first state display, such as green display, according to the first state instruction. The first normally-closed switch 50, the second normally-closed switch 51, the first switch 30 and the second switch 31 at least comprise one of a relay, a triode and a MOS transistor, for example, the first normally-closed switch 50, the second normally-closed switch 51, the first switch 30 and the second switch 31 are all relays, before a switch instruction is received, the first normally-closed switch 50 and the second normally-closed switch 51 are both in a conducting state, and the first switch 30 and the second switch 31 are both in a turn-off state.
In one embodiment, the switch control signal comprises an automatic switch control signal, and the input device 10 comprises:
and an auto-verification button 104 connected to the control device 20 for transmitting an auto-verification signal and an auto-switch control signal to the control device 20. The control device 20 starts to enter the automatic check mode upon receiving the automatic check signal, and transmits the same switching command to the first switch 30 and the second switch 31 according to the set rule after receiving the automatic switching control signal.
In one embodiment, the switch control signal comprises a manual switch control signal, and the input device 10 further comprises:
a manual check button 106 connected to the control device 20 for sending a manual check signal to the control device 20;
a channel selection button 108 connected to the control device 20 for inputting a first switch N and a second switch N to be controlled;
and a channel switching button 110, respectively connected to the channel selecting button 108 and the control device 20, for sending a manual switch control signal to the control device 20 to simultaneously control the first switch N and the second switch N to be turned on and the remaining first switches 30 and the remaining second switches 31 to be turned off.
The control device 20 starts to enter a manual inspection mode after receiving a manual inspection signal, then inputs numbers X of a first switch and a second switch which need to be controlled to be turned on to the control device 20 by selecting the channel button 108, the channel switching button 110 sends a manual switch control signal for simultaneously controlling the turning on of the first switch N with the number X and the turning on of the second switch N with the number X and controlling the turning off of the rest of the first switches 30 and the rest of the second switches 31 to the control device 20, and the control device 20 outputs a switch instruction for controlling the turning on of the first switch N and the turning off of the rest of the second switches 31 and controlling the turning off of the rest of the first switches 30 and the rest of the second switches 31 to the first switches 30 and the second switches 31 according to the manual switch control signal.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
and a timer 70 connected to the control device 20 for sending the PWM signal to the control device 20, wherein the control device 20 is configured to send the received switching command to the first switch 30 and the second switch 31 simultaneously according to the PWM signal.
The PWM signal sent by the timer 70 can adjust the time interval at which the control device 20 sends the switching commands to the first switch 30 and the second switch 31, and the time length for which the control device 20 sends the same switching commands to the first switch 30 and the second switch 31. The effect of the transmission delay on the on or off of the first switch 30 and the second switch 31 is eliminated, and the purpose that the first switch 30 and the second switch 31 are simultaneously on or off is achieved.
As shown in fig. 3, in one embodiment, the control device 20 includes a first single chip microcomputer 202 connected to a first end of the first switch 30 and a second single chip microcomputer 204 connected to a first end of the second switch 31, and the input device 10 includes:
the first communication synchronization button 104 is connected with the first single chip microcomputer 202 and used for sending a first communication signal for establishing communication connection;
and the second communication synchronization button 106 is connected with the second singlechip 204 and used for sending a second communication signal for establishing communication connection.
In this embodiment, the first single chip microcomputer 202 sends a first communication instruction to the first switch 30 according to the first communication signal, the second single chip microcomputer 204 sends a second communication instruction to the second switch 31 according to the second communication signal, the first communication instruction and the second communication instruction are sent simultaneously, and after the communication connection between the transmitting end and the receiving end is established through the first communication instruction and the second communication instruction, the same switch instruction can be sent to the first switch 30 and the second switch 31 through the first single chip microcomputer 202 or the second single chip microcomputer 204.
As shown in FIG. 4, in one embodiment, the manual verification button 106 includes:
the first manual checking button 106A is connected with the first single chip microcomputer 202 and used for sending a manual checking signal to the first single chip microcomputer 202;
the second manual checking button 106B is connected with the second single chip microcomputer 204 and used for sending a manual checking signal to the second single chip microcomputer 204;
the select channel button 108 includes:
a first channel selection button 108A for inputting the number X of the first switch N to be controlled;
a second selection channel button 108AB for inputting the number X of the second switch N to be controlled;
the channel switching button 110 includes:
the first channel switching button 110A is connected with the first channel selecting button 108A and the first single chip microcomputer 202, and is used for sending a manual switch control signal for controlling the first switch N to be turned on and the rest of the first switches 30 to be turned off to the first single chip microcomputer 202;
the second channel switching button 110B is connected to the second channel selecting button 108B and the second single chip microcomputer 204, and is configured to send a manual switch control signal to the second single chip microcomputer 204 to control the second switch N to be turned on and control the remaining second switches 31 to be turned off, where the second switch N and the first switch N are turned on simultaneously.
As shown in fig. 4, in one embodiment, serial screen 102 includes:
the first serial port screen 102A is connected with the first single chip microcomputer 202;
the second serial port screen 102B is connected with the second single chip microcomputer 204;
the auto-verify button 104 includes:
the first automatic check button 104A is connected with the first single chip microcomputer 202;
and the first automatic verification button 104B is connected with the second singlechip 204. The first switch 30 and the second switch 31 may be simultaneously controlled to be turned on or off by the first automatic checking button 104A or the first automatic checking button 104B.
As shown in fig. 4, in one embodiment, the timer 70 includes:
the first timer 702 is connected with the first singlechip 202;
and the first timer 704 is connected with the second singlechip 204. The first PWM signal sent by the first timer 702 to the first mcu 202 and the second PWM signal sent by the first timer 704 to the second mcu 204 are the same signals sent at the same time.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
the first reset device 80 is connected with the first single chip microcomputer 202 and used for outputting a first reset signal; the first single chip microcomputer 202 is configured to output a first reset instruction for controlling the first normally-closed switches 50 to be turned on and controlling the first switches 30 to be turned off according to the first reset signal;
the second reset device 81 is connected with the second singlechip 204 and used for outputting a second reset signal; the second single chip 204 is configured to output a second reset instruction for controlling the second normally-closed switch 51 to be turned on and controlling each second switch 31 to be turned off according to the second reset signal.
The first reset device 80 outputs the first reset signal and the second reset device 81 outputs the second reset signal, which may be performed at the same timing or at different timings.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further comprises:
the transmitting aviation socket is positioned between the transmitting end wire core and the first switch, and between the transmitting end shielding wire and the first normally closed switch;
and the receiving aviation socket is positioned between the receiving end wire core and the second switch, and between the receiving end shielding wire and the second normally closed switch.
In this embodiment, first normally closed switch and each first switch are connected with the contact pin one-to-one of transmission aviation socket respectively, are connected with transmission end sinle silk and transmission end shielded wire through transmission aviation socket, and second normally closed switch and each second switch are connected with the contact pin one-to-one of receipt aviation socket respectively, are connected with receiving terminal sinle silk and receiving terminal shielded wire through receiving aviation socket.
In one embodiment, the detection device for the containment leakage rate measurement circuit of the nuclear power plant further includes: the control device further comprises a memory connected with the control device 20 and used for storing the first state instruction sent by the control device 20 and the corresponding first switch M and/or second switch M.
The working process of the detection device in the present application is described below with reference to fig. 3, fig. 4, and fig. 5 as examples, and the detection device includes two parts, namely a transmitting end communication detection device located on the field side and a receiving end communication detection device located on the cabinet side. The transmitting end shielding wire 60 connected with the first normally closed switch 50 and the receiving end shielding wire 61 connected with the second normally closed switch 51 are both connected to the shielding bus of the factory building unified standard, so that the first normally closed switch 50 and the second normally closed switch 51 are in a conducting state. When a check test of a leakage rate measurement network system is carried out, a transmitting terminal communication detection device on the site side is connected to the site side of the nuclear island sensor box through a transmitting aviation socket, and a receiving terminal communication detection device on the integrated cabinet side is connected to the integrated box in the duty room through a receiving aviation socket. Automatic and manual measurements may be taken during the test.
To big sinle silk verification can use automatic measurement, when whether a plurality of transmitting terminal sinle silks M and receiving terminal sinle silk M one-to-one connect need to be verified promptly, utilize detection device to carry out automatic measurement's step as follows:
1. establishing synchronous communication: the communication synchronization button is clicked, the tester in the nuclear island and the tester in the main control duty room simultaneously press a first communication synchronization button 110A (communication synchronization button) on the detection device in the nuclear island and a second communication synchronization button 110B (communication synchronization button) on the detection device in the main control duty room, and the control devices (a first single chip microcomputer 202 and a second single chip microcomputer 204) in the two detection devices control the conduction of the No. 2 relays (a first switch 2 and a second switch 2). Because the relays No. 1 (the first normally closed switch 50 and the second normally closed switch 51) are normally closed, and the wire cores are connected by the shielding wires, the wire cores No. 1 of the aviation plugs of the two detection devices can be directly connected together by the shielding wires of the unified standard of the nuclear power station, and the operation time difference of the test personnel and the response time difference between the relays and the control device are considered, the closing time of the relay No. 2 is defaulted to be 15s (the PWM signal of the time delay of 15s is sent to the control module through the first timer 702 and the second timer 704 to control the relay No. 2 to be switched on for 15s) in the operation step until the green indicator lights of the checking state of the device are turned on (the green indicator lights on the first serial port screen 102A and the second serial port screen 102B are turned on simultaneously) to indicate that the communication is established, and the switching command of the single device (the first automatic checking button 104A on the field side or the second automatic checking button 104B on the integration cabinet side) can control the relays of the two devices (namely, the first switch and the second switch are connected together Two switches) are switched simultaneously. 2. And (5) starting verification: considering the response time difference (generally less than 0.2s) of the relays of the nuclear island and the master control duty room, the integer second after the communication of the control device is successfully established for 3s controls to open the relay No. 2, then the integer second after the relay No. 2s is opened closes the wire core No. 3, if the green indicating lamp in the checking state is lighted, the communication of the wire cores No. 1 and No. 3 is established, and the wire core No. 3 is connected without errors, namely the wire core 3 at the transmitting end is connected with the wire core 3 at the receiving end; the next set of core verifications is started. Namely, the relay No. 3 is controlled to be switched off in integer seconds after the relay No. 3 is closed, and then the on-off of the next relay is switched in integer seconds after 2 seconds, and all verification of the line cores No. 19 is completed in sequence.
The method is characterized in that the wire core conformance verification after rechecking or repairing is carried out on a few end connection errors, testers are required to check the correctness of the cable laying termination, the manual measurement function of the detection device can be used, and the manual measurement steps are as follows:
1. clicking a manual measuring button, and respectively pressing a first manual measuring button 106A (manual measuring button) on a detecting device in the nuclear island and a second manual measuring button 106B (manual measuring button) on the detecting device in the main control duty room by a tester in the nuclear island and a tester in the main control duty room; when the terminal number of the core to be measured is input in the selection channel number (i.e. the same terminal number, for example, X, indicating that the first switch X and the second switch X need to be controlled is input through the first selection channel button 108A and the second selection channel button 108B), the switching channel button (the first channel switching button 110A and the second channel switching button 110B) is clicked, and the control device turns off the relay corresponding to the input core terminal number. 2. Like automatic measurement, No. 1 sinle silk is because of all linking to each other with the shielded wire, so if the sinle silk of awaiting measuring is no problem, then can establish complete measurement return circuit, and check-up state instructs the green lamp to light simultaneously. If the wire core is in wrong termination, a complete measuring loop cannot be established, and the red indicator light is turned on.
The detection device in this application utilizes the shielded wire of unified standard can accomplish the connection of nuclear island and the room on duty and stride a return circuit of factory building long distance communication, utilizes relay (first switch, second switch) and timer to realize two factory building communication signal's synchronization, utilizes controlling means (first singlechip and second singlechip) control relay break-make to form a closed circuit to the measuring sinle silk of awaiting measuring to the compliance of sinle silk termination is verified, and can show in real time to the exactness result of sinle silk termination.
In the detection device for the containment leakage rate measurement loop of the nuclear power station, the control device outputs a switch instruction to the first switch and the second switch according to a switch control signal input by the input device, the first switch M connected with the transmitting end wire core M and the second switch M connected with the receiving end wire core M are switched on according to the switch instruction, the rest first switches and the rest second switches are switched off according to the switch instruction, when the first switch M and the second switch M are switched on to form a loop, the control device sends a first state instruction, when the first switch M and the second switch M are switched on, the rest first switches and the rest second switches are switched off, and when the control device sends the first state instruction, the transmitting end wire core M connected with the first switch M and the receiving end wire core M connected with the second switch M are connected together, otherwise, the transmitting end wire core M connected with the first switch M and the receiving end wire core M connected with the second switch M are not connected together, after the detection device inputs a switch control signal, whether the transmitting end wire core M and the receiving end wire core M are correctly connected together can be detected by judging whether the control device sends a first state instruction, the test efficiency is high, the operation steps are simple, the required test space is small, and whether the transmitting end wire core M in a box which is not easy to approach in a containment factory building and the receiving end wire core M in a containment leakage rate measurement room are correctly connected can be quickly and accurately detected.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean 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 invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A detection device for a containment leakage rate measurement circuit of a nuclear power station is characterized by comprising:
an input device for inputting a switch control signal;
the control device is connected with the input device and used for outputting a switching instruction according to the switching control signal;
the first ends of the first switches are connected in parallel and then connected with the control device, the second ends of the first switches are respectively connected with the wire cores of the transmitting end in a one-to-one correspondence mode, the first switches M are connected with the wire cores M of the transmitting end, the first switches are used for being switched on or switched off according to the switch instruction, and when the first switches M are switched on, the rest first switches are switched off;
the first ends of the second switches are connected in parallel and then connected with the control device, the second ends of the second switches are respectively connected with the receiving end wire cores in a one-to-one correspondence mode, the second switches M are connected with the receiving end wire cores M and used for being switched on or switched off according to the switch instruction, and when the second switches M are switched on, the rest of the second switches are switched off; the control device is further configured to send a first status instruction when the first switch M and the second switch M are turned on to form a loop.
2. The detection device of claim 1, further comprising:
one end of the first normally closed switch is connected with the control device, and the other end of the first normally closed switch is connected with the transmitting end shielding wire;
and one end of the second normally-closed switch is connected with the control device, and the other end of the second normally-closed switch is connected with the receiving end shielding wire.
3. The detection device of claim 1, wherein the input device comprises:
the serial port screen is connected with the control device and used for displaying a first state according to the first state instruction;
the first switch and the second switch at least comprise one of a relay, a triode and an MOS tube.
4. The detecting device according to claim 1, wherein the control device includes a first single chip microcomputer connected to a first end of the first switch and a second single chip microcomputer connected to a first end of the second switch, and the input device includes:
the first communication synchronization button is connected with the first singlechip and used for sending a first communication signal for establishing communication connection;
and the second communication synchronization button is connected with the second singlechip and used for sending a second communication signal for establishing communication connection.
5. The sensing device of claim 4, wherein the switch control signal comprises an automatic switch control signal, the input device further comprising:
and the automatic checking button is connected with the control device and used for sending an automatic checking signal and an automatic switch control signal to the control device.
6. The sensing device of claim 4, wherein the switch control signal comprises a manual switch control signal, the input device further comprising:
the manual checking button is connected with the control device and used for sending a manual checking signal to the control device;
the channel selection button is connected with the control device and is used for inputting a first switch N and a second switch N which need to be controlled;
and the channel switching button is respectively connected with the channel selecting button and the control device and is used for sending a manual switch control signal for simultaneously controlling the first switch N and the second switch N to be switched on and the rest of first switches and the rest of second switches to be switched off to the control device.
7. The test device of claim 6, wherein the manual verification button comprises:
the first manual checking button is connected with the first single chip microcomputer and used for sending a manual checking signal to the first single chip microcomputer;
the second manual checking button is connected with the second single chip microcomputer and used for sending a manual checking signal to the second single chip microcomputer;
the select channel button includes:
the first channel selection button is used for inputting a first switch N to be controlled;
the second channel selection button is used for inputting a second switch N required to be controlled;
the channel switching button includes:
the first channel switching button is connected with the first channel selecting button and the first single chip microcomputer and used for sending a manual switch control signal for controlling the first switch N to be switched on and the rest of first switches to be switched off to the first single chip microcomputer;
and the second channel switching button is connected with the second channel selecting button and the second single chip microcomputer and is used for sending a manual switch control signal for controlling the second switch N to be switched on and the rest of the second switches to be switched off to the second single chip microcomputer, wherein the second switch N and the first switch N are simultaneously switched on.
8. The detection device of claim 4, further comprising:
the first reset device is connected with the first singlechip and used for outputting a first reset signal; the first single chip microcomputer is used for outputting a first reset instruction for controlling the first normally closed switches to be switched on and controlling the first switches to be switched off according to the first reset signal;
the second reset device is connected with the second singlechip and is used for outputting a second reset signal; the second singlechip is used for outputting a second reset instruction for controlling the second normally closed switch to be switched on and controlling each second switch to be switched off according to the second reset signal.
9. The detection device of claim 4, further comprising:
the transmitting aviation socket is positioned between the transmitting end wire core and the first switch, and between the transmitting end shielding wire and the first normally closed switch;
and the receiving aviation socket is positioned between the receiving end wire core and the second switch, and between the receiving end shielding wire and the second normally closed switch.
10. The detection device of claim 1, further comprising:
and the timer is connected with the control device and used for sending PWM signals to the control device, and the control device is used for sending the received switching instructions to the first switch and the second switch according to the PWM signals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022716939.1U CN214845716U (en) | 2020-11-20 | 2020-11-20 | Detection apparatus for nuclear power station containment leakage rate measurement return circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022716939.1U CN214845716U (en) | 2020-11-20 | 2020-11-20 | Detection apparatus for nuclear power station containment leakage rate measurement return circuit |
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| CN214845716U true CN214845716U (en) | 2021-11-23 |
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| CN202022716939.1U Active CN214845716U (en) | 2020-11-20 | 2020-11-20 | Detection apparatus for nuclear power station containment leakage rate measurement return circuit |
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