Acoustic alarm system of nuclear power plant

Abstract

The utility model relates to an acoustic alarm system for a nuclear power plant. The acoustic alarm system comprises a plurality of consoles, an IP broadcast system host, an IP network system, a plurality of sets of dry contact network terminals, a plurality of acoustic alarm control switches, a plurality of acoustic alarms and a plurality of IP acoustic alarms, the console generates an output signal according to the trigger signal corresponding to each key; the IP broadcast system host executes issuing and partition control of the sound alarm signal according to the network control signal; the IP network system transmits an acoustic alarm control signal and a network control signal; the dry contact network terminal controls the sound alarm to output a corresponding sound alarm signal according to the sound alarm control signal; and the IP sound alarm outputs a corresponding sound alarm signal according to the sound alarm control signal. According to the utility model, rapid and flexible networking is realized through a standard IP network, intelligent monitoring can be realized, and digitization and intellectualization of products are realized.

Description

Technical Field

[0001] This utility model relates to the nuclear energy industry, and more specifically, to a nuclear power plant acoustic alarm system. Background Technology

[0002] The audible alarm system, a subsystem of the nuclear power plant's communication system, is a crucial component of the plant's emergency communication network. It consists of alarms installed in the nuclear island, conventional island, and auxiliary buildings, as well as glass break buttons, control cabinets, and control consoles. These systems are used to issue alarms in the event of an accident. During an accident, audible alarm messages are emitted from the main control room, remote shutdown stations, and the emergency command center's audible alarm control console. Audible alarm messages can also be emitted locally from the reactor building and nuclear fuel building. This allows personnel to hear different audible alarm signals and take appropriate action.

[0003] The existing audible alarm control panels in nuclear power plants are mainly custom-made using PLCs and electrical control panels. These custom-made devices are bulky, inconvenient to install, and inflexible in configuration, making them unsuitable for use in areas with a small number of users. Furthermore, they have a low degree of standardization, lack product iteration and evolution, and have a relatively low level of digitalization and intelligence. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a nuclear power plant acoustic alarm system, addressing the problems existing in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a nuclear power plant sound alarm system, including: several control consoles, an IP broadcast system host, an IP network system, several dry contact network terminals, several sound alarm control switches, several sound alarm devices, and several IP sound alarm devices.

[0006] The plurality of consoles are connected to the IP broadcast system host through the signal conversion module; the plurality of dry contact network terminals communicate with the IP broadcast system host through the IP network system; the plurality of audible alarms are connected to the plurality of dry contact network terminals; and the plurality of IP audible alarms are connected to the IP network system.

[0007] The console is used to generate output signals based on the trigger signals corresponding to each button.

[0008] The IP network system is used to transmit the audible alarm control signal and the network control signal;

[0009] The IP broadcast system host is used to execute the release and zone control of audible alarm signals according to the network control signals, and output audible alarm control signals;

[0010] The dry contact network terminal is used to control the corresponding sound alarm device connected to it to output a corresponding sound alarm signal according to the sound alarm control signal transmitted by the IP network system.

[0011] The IP sound alarm is used to output a corresponding sound alarm signal based on the sound alarm control signal transmitted through the IP network.

[0012] In the nuclear power plant acoustic alarm system described in this utility model, the control console includes: an acoustic alarm control console or an IP broadcast control console.

[0013] In the nuclear power plant acoustic alarm system of this utility model, if the control console is the acoustic alarm control console, it further includes: a dry contact interface device;

[0014] The dry contact interface device is used to convert the output signal generated by the audible alarm console into the network control signal and transmit it to the IP network system.

[0015] In the nuclear power plant acoustic alarm system described in this utility model, the acoustic alarm control switch is an AC contact switch;

[0016] The input terminal of the AC contact switch is connected to the UPS communication power supply, the output terminal of the AC contact switch is connected to one or more of the audible alarms, and the AC contact switch is connected to the dry contact network terminal through a dry contact.

[0017] In the nuclear power plant audible alarm system described in this utility model, the plurality of dry contact network terminals are connected to the IP broadcast system host via a network.

[0018] In the nuclear power plant audible alarm system described in this utility model, the control console is located in the main control room, the remote shutdown station, and the emergency command center;

[0019] The IP broadcast system host is installed in the communication equipment room of the factory building;

[0020] The dry contact network terminal, the audible alarm control switch, the audible alarm, and the IP audible alarm are all installed inside and outside the nuclear power plant building.

[0021] In the nuclear power plant acoustic alarm system of this utility model, the IP broadcast system host includes: a primary IP broadcast system host and a backup IP broadcast system host;

[0022] The primary IP broadcast system host and the backup IP broadcast system host serve as backups for each other.

[0023] In the nuclear power plant acoustic alarm system described in this utility model, the IP broadcast system host communicates with the dry contact network terminal and / or the IP acoustic alarm via the IP protocol.

[0024] In the nuclear power plant acoustic alarm system of this utility model, the acoustic alarm control console includes: a control panel; the control panel includes: a buzzer, a switch lock, an indicator unit, and a button unit;

[0025] The buzzer is used to generate a buzzing signal;

[0026] The switch lock is used to control the start or stop of the audible alarm control console;

[0027] The indicator unit is used to perform an indicator function;

[0028] The button unit is used to generate corresponding trigger signals according to the user's operation.

[0029] In the nuclear power plant audible alarm system of this utility model, the indicator unit includes: reactor building indicator module, nuclear fuel building indicator module, unit building indicator module, plant-wide indicator module, system fault indicator module, and backup indicator module;

[0030] The button unit includes: reactor building alarm button, nuclear fuel building alarm button, unit building alarm button, plant-wide alarm button, system self-test button, and alarm confirmation button;

[0031] The reactor building alarm button is used to generate a trigger signal for a reactor building alarm.

[0032] The nuclear fuel plant alarm button is used to generate a trigger signal for a nuclear fuel plant alarm.

[0033] The unit building alarm button is used to generate a trigger signal for a unit building alarm.

[0034] The plant-wide alarm button is used to generate a trigger signal for a plant-wide alarm.

[0035] The system self-test button is used to generate a trigger signal for system self-test;

[0036] The alarm confirmation button is used to generate a trigger signal for alarm confirmation;

[0037] The reactor building indicator module is used to output reactor building alarm indicator signals;

[0038] The nuclear fuel facility indicator module is used to output nuclear fuel facility alarm indicator signals;

[0039] The generator plant indicator module is used to output alarm indicator signals for the generator plant.

[0040] The plant-wide indicator module is used to output plant-wide alarm indicator signals;

[0041] The system fault indication module is used to output system fault alarm indication signals;

[0042] The backup indicator module is used to output a backup indicator signal.

[0043] The nuclear power plant audible alarm system of this invention has the following beneficial effects: It includes several control consoles, an IP broadcast system host, an IP network system, several sets of dry contact network terminals, several audible alarm control switches, several audible alarm devices, and several IP audible alarm devices. The control consoles generate output signals based on the trigger signals corresponding to each button; the IP broadcast system host executes the release and zone control of audible alarm signals according to network control signals; the IP network system transmits audible alarm control signals and network control signals; the dry contact network terminals control the audible alarm devices to output corresponding audible alarm signals according to the audible alarm control signals; and the IP audible alarm devices output corresponding audible alarm signals according to the audible alarm control signals. This invention achieves rapid and flexible networking through a standard IP network, enabling intelligent monitoring and making the product digital and intelligent. Attached Figure Description

[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0045] Figure 1 This is a schematic diagram of an embodiment of the nuclear power plant acoustic alarm system provided by this utility model;

[0046] Figure 2 This is a schematic diagram of another embodiment of the nuclear power plant acoustic alarm system provided by this utility model;

[0047] Figure 3 This is a diagram of the control panel interface of the audible alarm control console provided by this utility model. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] refer to Figure 1 In one embodiment, the nuclear power plant audible alarm system includes: several control consoles, an IP broadcast system host, an IP network system, several dry contact network terminals, several audible alarm control switches, several audible alarm devices, and several IP audible alarm devices.

[0050] The system comprises several control consoles communicating with the IP broadcasting system host via an IP network system, several sets of dry contact network terminals communicating with the IP broadcasting system host via an IP network system, several audible alarms connected to several sets of dry contact network terminals, and several IP audible alarms connected to the IP network system. The control consoles generate output signals based on the trigger signals corresponding to each button. The IP broadcasting system host executes the release and zone control of audible alarm signals based on network control signals and outputs audible alarm control signals. The IP network system transmits audible alarm control signals and network control signals. The dry contact network terminals control their corresponding connected audible alarms to output corresponding audible alarm signals based on the audible alarm control signals transmitted by the IP network system. The IP audible alarms output corresponding audible alarm signals based on the audible alarm control signals transmitted by the IP network.

[0051] like Figure 1 As shown, when the console is an audible alarm console, a dry contact interface device also needs to be set up. That is, each audible alarm console is configured with a dry contact interface device. The connection between the audible alarm console and the IP network system is realized through the dry contact interface device. The dry contact interface device converts the output signal generated by the audible alarm console into an IP network control signal so that the IP broadcast system host can recognize and complete the communication.

[0052] In some embodiments, the audible alarm control switch is an AC contact switch; the input terminal of the AC contact switch is connected to the UPS communication power supply, the output terminal of the AC contact switch is connected to one or more audible alarms, and the AC contact switch is connected to a dry contact network terminal through a dry contact.

[0053] Specifically, the console generates corresponding output signals based on the trigger signals generated by each button. The generated output signals are converted into IP network control signals by the dry contact interface device so that the IP broadcast system host can communicate with them and recognize them, thus realizing the function of publishing and zoning sound alarm signals.

[0054] Specifically, due to the advanced system partitioning function of the IP broadcasting system (where system partitioning settings can be flexibly modified via software), the IP broadcasting system host is used as the host of the audible alarm system. It is connected to a dry contact AC contact switch via a dry contact network terminal. The dry contact AC contact switch controls one or more connected audible alarm devices to output audible alarm signals. Simultaneously, the audible alarm control signal output by the IP broadcasting system host can also be directly transmitted to the IP audible alarm devices via the IP network system to control the IP audible alarm devices to output corresponding audible alarm signals. The dry contact network terminal outputs a dry contact short-circuit signal to control the audible alarm device. The output duration of this dry contact short-circuit signal can be set according to the system. Optionally, the audible alarm signals output by the audible alarm device / IP audible alarm device can be one of the following three types:

[0055] ① Factory emergency: Sound the horn for 15 seconds, then pause for 5 seconds, for a total of three horn sounds;

[0056] ② Factory area emergency response: Sound the horn for 1 minute, then pause for 10 seconds, for a total of two horn soundings;

[0057] ③ Emergency response outside the factory: Sound the horn for 1 minute, then pause for 10 seconds, for a total of two horn sounds.

[0058] Optionally, in some embodiments, several sets of dry contact network terminals are connected to the IP broadcast system host via a network. The IP broadcast system host includes a primary IP broadcast system host and a backup IP broadcast system host; the primary and backup IP broadcast system hosts serve as backups for each other. The IP broadcast system host communicates with the dry contact network terminals and the IP sound alarm via the IP protocol.

[0059] In this embodiment of the invention, the control consoles are located in the main control room, the remote shutdown station, and the emergency command center; the IP broadcast system host is installed in the communication equipment room of the plant building; the dry contact network terminal, the audible alarm control switch, the audible alarm, and the IP audible alarm are all installed inside and outside the nuclear power plant buildings. Specifically, the dry contact network terminal, the audible alarm control switch, most of the audible alarms, and the IP audible alarm are installed inside the buildings, while a small number of audible alarms are installed outside the buildings (such as on the roof or exterior of the building).

[0060] like Figure 3As shown, in this embodiment, the audible alarm control console includes: a control panel; the control panel includes: a buzzer, a switch lock, an indicator unit, and a button unit; the buzzer is used to generate a buzzing signal; the switch lock is used to control the audible alarm control console to start or stop; the indicator unit is used to perform indicator functions; the button unit is used to generate corresponding trigger signals according to the user's operation. The indicator unit includes: a reactor building indicator module, a nuclear fuel building indicator module, a unit building indicator module, a plant-wide indicator module, a system fault indicator module, and a backup indicator module; the button unit includes: a reactor building alarm button, a nuclear fuel building alarm button, a unit building alarm button, a plant-wide alarm button, a system self-test button, and an alarm confirmation button; the reactor building alarm button is used to generate a reactor building alarm trigger signal; the nuclear fuel building alarm button is used to generate a nuclear fuel building alarm trigger signal; the unit building alarm button is used to generate a unit building alarm trigger signal. Signals: The plant-wide alarm button is used to generate a trigger signal for a plant-wide alarm; the system self-test button is used to generate a trigger signal for a system self-test; the alarm confirmation button is used to generate a trigger signal for alarm confirmation; the reactor building indicator module is used to output reactor building alarm indicator signals; the nuclear fuel building indicator module is used to output nuclear fuel building alarm indicator signals; the unit building indicator module is used to output unit building alarm indicator signals; the plant-wide indicator module is used to output plant-wide alarm indicator signals; the system fault indicator module is used to output system fault alarm indicator signals; and the standby indicator module is used to output standby indicator signals.

[0061] Specifically, in a nuclear power plant, the nuclear power plant acoustic alarm system of this utility model is configured as follows: several control consoles, one main IP broadcast system host, one backup IP broadcast system host, one IP network system, several dry contact network terminals, several AC contact switches, several IP acoustic alarms, and several acoustic alarms. The number of control consoles is determined by the number of units in the nuclear power plant. Preferably, the number of control consoles is twice the number of units in the nuclear power plant plus one. For example, if the nuclear power plant has 2 units, the number of control consoles is 5; if the nuclear power plant has 4 units, the number of control consoles is 9.

[0062] In this embodiment, an IP broadcasting system host is used as the host of the audible alarm system to realize the functions of audible alarm signal dissemination and zone control. An existing audible alarm control console is also used. The audible alarm control console has functions such as branch control, alarm type selection, and status display. The trigger signals corresponding to each button on the audible alarm control console are converted into network control signals that the IP broadcasting system host can recognize through a dry contact interface device to realize the distribution and dissemination of audible alarm signals. Dry contact network terminals installed in each building are connected to the IP broadcasting system host via an IP network. The IP broadcasting system host transmits network control signals to the dry contact network terminal devices in each building via the IP network. The dry contact network terminals in each building are connected to AC contact switches via dry contacts. The input terminal of the AC contact switch is connected to a UPS communication power supply, and the output terminal of the AC contact switch is connected to one or more audible alarms inside or outside the building. After the audible alarm control console emits an output signal, the dry contact interface device converts it into a network control signal and transmits it to the IP broadcasting system host. The IP broadcasting system host controls the dry contact network terminals to emit dry contact short-circuit signals based on these network control signals, and then drives the connected audible alarms to emit corresponding audible alarm signals through the connected AC contact switches. Meanwhile, the IP broadcasting system host can also directly drive IP sound alarms via the IP network to emit audio signals conforming to the sound alarm signal format. IP speakers can be used as IP sound alarms.

[0063] refer to Figure 2 , Figure 2 This is another embodiment of the nuclear power plant audible alarm system provided by this utility model. The difference between this embodiment and the previous embodiments is that the control console uses an IP broadcast control console. Furthermore, when using an IP broadcast control console, it can communicate directly with the IP network system without requiring dry contact interface equipment. Simultaneously, the microphone and other broadcast-specific devices of the original IP broadcast control console are removed, and the operation interface is rearranged according to the control panel of the audible alarm control console. That is, the IP broadcast control console can be used according to... Figure 3A corresponding operating interface is set up to achieve the corresponding functions. The IP broadcast console has functions such as branch control, alarm type selection, and status display. The main function of the IP broadcast console is to allow operators to activate the audible alarm system, issue alarm signals to the corresponding areas, and understand the alarm status through indicator lights. Specifically, the IP broadcast console includes: a control operating interface; the control operating interface includes: a buzzer alarm module, a lock / switch control module, an indicator unit, and a button unit; the buzzer alarm module is used to generate a buzzer signal; the lock / switch control module is used to control the start or stop of the IP broadcast console; the indicator unit is used to execute the indication function; the button unit is used to generate corresponding trigger signals based on user operations. It should be noted that the buzzer alarm module, lock / switch control module, indicator unit, and button unit are all virtual buttons / indicator lights on the control operating interface, not physical buttons or physical indicator lights.

[0064] The indicator unit includes: a reactor building indicator module, a nuclear fuel building indicator module, a unit building indicator module, a plant-wide indicator module, a system fault indicator module, and a backup indicator module; the button unit includes: a reactor building alarm button, a nuclear fuel building alarm button, a unit building alarm button, a plant-wide alarm button, a system self-test button, and an alarm confirmation button; the reactor building alarm button is used to generate a trigger signal for a reactor building alarm; the nuclear fuel building alarm button is used to generate a trigger signal for a nuclear fuel building alarm; the unit building alarm button is used to generate a trigger signal for a unit building alarm. The following modules are used: Plant-wide Alarm Button; System Self-Test Button; Alarm Confirmation Button; Reactor Building Indicator Module; Nuclear Fuel Building Indicator Module; Unit Building Indicator Module; Plant-wide Indicator Module; System Fault Indicator Module; and Backup Indicator Module.

[0065] In this embodiment, traditional audible alarms can be used inside and outside each building. Dry contact network terminals installed inside each building are connected to the IP broadcasting system host via an IP network. The IP broadcasting system host transmits network control signals to the dry contact network terminal devices inside each building via the IP network. The dry contact network terminals inside the buildings are then connected to AC contact switches via dry contacts. The input terminal of the AC contact switch is connected to a UPS communication power supply, and the output terminal of the AC contact switch is connected to one or more audible alarms inside and outside the building. After the audible alarm control console issues an output signal, it is converted into a network control signal by the dry contact interface device and transmitted to the IP broadcasting system host. The IP broadcasting system host controls the dry contact network terminals to issue a dry contact short-circuit signal based on this network control signal, which then drives the connected audible alarms to emit corresponding audible alarm signals through the connected AC contact switches. Simultaneously, the IP broadcasting system host can also directly drive IP audible alarms via the IP network to emit audio signals conforming to the audible alarm signal format. IP speakers can be used as IP audible alarms.

[0066] The nuclear power plant alarm system provided by this utility model can achieve rapid and flexible networking through a standard IP network. The IP broadcast system host and the sound alarm equipment (including sound alarms and / or IP sound alarms) of each building communicate using the IP protocol, which can realize intelligent monitoring. It can also make full use of the existing sound alarm lines and terminals inside and outside the building, and has obvious technical and cost advantages.

[0067] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They do not limit the scope of protection of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should fall within the scope of the claims of this utility model.

Claims

1. A nuclear power plant audible alarm system, characterized in that, include: Several control consoles, an IP broadcast system host, an IP network system, several dry contact network terminals, several audible alarm control switches, several audible alarms, and several IP audible alarms; The plurality of consoles communicate with the IP broadcast system host through the IP network system, the plurality of dry contact network terminals communicate with the IP broadcast system host through the IP network system, the plurality of audible alarms are connected to the plurality of dry contact network terminals, and the plurality of IP audible alarms are connected to the IP network system. The console is used to generate output signals based on the trigger signals corresponding to each button. The IP network system is used to transmit audible alarm control signals and network control signals; The IP broadcast system host is used to execute the release and zone control of audible alarm signals according to the network control signals, and output audible alarm control signals; The dry contact network terminal is used to control the corresponding sound alarm device connected to it to output a corresponding sound alarm signal according to the sound alarm control signal transmitted by the IP network system. The IP sound alarm is used to output a corresponding sound alarm signal based on the sound alarm control signal transmitted by the IP network system.

2. The nuclear power plant acoustic alarm system according to claim 1, characterized in that, The console includes either an audible alarm console or an IP broadcast console.

3. The nuclear power plant acoustic alarm system according to claim 2, characterized in that, If the console is the audible alarm console, then it further includes: a dry contact interface device; The dry contact interface device is used to convert the output signal generated by the audible alarm console into the network control signal and transmit it to the IP network system.

4. The nuclear power plant audible alarm system according to any one of claims 1-3, characterized in that, The audible alarm control switch is an AC contact switch; The input terminal of the AC contact switch is connected to the UPS communication power supply, the output terminal of the AC contact switch is connected to one or more of the audible alarms, and the AC contact switch is connected to the dry contact network terminal through a dry contact.

5. The nuclear power plant audible alarm system according to any one of claims 1-3, characterized in that, The aforementioned sets of dry contact network terminals are connected to the IP broadcast system host via a network.

6. The nuclear power plant audible alarm system according to claim 1, characterized in that, The control consoles are located in the main control room, remote shutdown station, and emergency command center; The IP broadcast system host is installed in the communication equipment room of the factory building; The dry contact network terminal, the audible alarm control switch, the audible alarm, and the IP audible alarm are all installed inside and outside the nuclear power plant building.

7. The nuclear power plant audible alarm system according to claim 1, characterized in that, The IP broadcast system host includes: a primary IP broadcast system host and a backup IP broadcast system host; The primary IP broadcast system host and the backup IP broadcast system host serve as backups for each other.

8. The nuclear power plant acoustic alarm system in accordance with claim 1, wherein, The IP broadcast system host communicates with the dry contact network terminal and / or the IP sound alarm via the IP protocol.

9. The nuclear power plant acoustic alarm system of claim 2, wherein, The audible alarm control console includes: a control panel; the control panel includes: a buzzer, a switch lock, an indicator unit, and a button unit; The buzzer is used to generate a buzzing signal; The switch lock is used to control the start or stop of the audible alarm control console; The indicator unit is used to perform an indicator function; The button unit is used to generate corresponding trigger signals according to the user's operation.

10. The nuclear power plant acoustic alarm system according to claim 9, characterized in that, The indicator unit includes: reactor building indicator module, nuclear fuel building indicator module, unit building indicator module, plant-wide indicator module, system fault indicator module, and standby indicator module; The button unit includes: reactor building alarm button, nuclear fuel building alarm button, unit building alarm button, plant-wide alarm button, system self-test button, and alarm confirmation button; The reactor building alarm button is used to generate a trigger signal for a reactor building alarm. The nuclear fuel plant alarm button is used to generate a trigger signal for a nuclear fuel plant alarm. The unit building alarm button is used to generate a trigger signal for a unit building alarm. The plant-wide alarm button is used to generate a trigger signal for a plant-wide alarm. The system self-test button is used to generate a trigger signal for system self-test; The alarm confirmation button is used to generate a trigger signal for alarm confirmation; The reactor building indicator module is used to output reactor building alarm indicator signals; The nuclear fuel facility indicator module is used to output nuclear fuel facility alarm indicator signals; The generator plant indicator module is used to output alarm indicator signals for the generator plant. The plant-wide indicator module is used to output plant-wide alarm indicator signals; The system fault indication module is used to output system fault alarm indication signals; The backup indicator module is used to output a backup indicator signal.

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