CN209343488U - A kind of fire alarm system - Google Patents
A kind of fire alarm system Download PDFInfo
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- CN209343488U CN209343488U CN201920308383.7U CN201920308383U CN209343488U CN 209343488 U CN209343488 U CN 209343488U CN 201920308383 U CN201920308383 U CN 201920308383U CN 209343488 U CN209343488 U CN 209343488U
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Abstract
The utility model relates to technical field of nuclear power, provide a kind of fire alarm system, and the safety to solve the problems, such as nuclear power plant is lower.The fire alarm system includes central fire alarm control unit；The first end of the central fire alarm control unit is connect with the first branch of the first main power source；The inside of the central fire alarm control unit is equipped with the first reserve battery；First reserve battery is connect with the first branch of first main power source；The second end of the central fire alarm control unit and the first end of external cell connect, and the second end of the external cell is connect with the second branch of first main power source.In this way, when primary source failure occurs, it will lead to automatic fire alarm system and remain to and alarm, so that the safety of nuclear power plant is higher.
Description
Technical field
The utility model relates to technical field of nuclear power more particularly to a kind of power configuration structures.
Background technique
Nuclear power plant, which refers to, is converted to thermal energy for nuclear energy, and to generate the steam for steam turbine, steam turbine drives power generation again
Machine constitutes the power plant for generating commercial power.The nuclear energy that nuclear fission discharges is changed into electric energy by establishing by nuclear power plant
System and equipment power generation, fuel cost is lower and can reduce pollution.But once the safety accidents such as fire occur for nuclear power plant,
Nuclear leakage will will cause serious consequence.
Nuclear power plant is made of nuclear island, conventional island and ancillary building, and automatic fire alarm system covers each of nuclear power plant
Region.In existing fire alarm system, usually powered by main power source to each device, when primary source failure occurs, meeting
Cause automatic fire alarm system can not and alarm so that the safety of nuclear power plant is lower.
Utility model content
The utility model embodiment provides a kind of fire alarm system, and the safety to solve the problems, such as nuclear power plant is lower.
In order to solve the above-mentioned technical problem, the utility model is realized in this way:
In a first aspect, the utility model embodiment provides a kind of fire alarm system, the fire alarm system includes
Central fire alarm control unit；The first end of the central fire alarm control unit is connect with the first branch of the first main power source；
The inside of the central fire alarm control unit is equipped with the first reserve battery；First reserve battery and described the
The first branch of one main power source connects；
The second end of the central fire alarm control unit and the first end of external cell connect, and the of the external cell
Two ends are connect with the second branch of first main power source.
Optionally, the fire alarm system further include:
Picture and text working equipment, the picture and text working equipment are connect by connecting line with central fire alarm control unit.
Optionally, the picture and text working equipment is connect with the first branch of the second main power source；
The inside of the picture and text working equipment is equipped with the second reserve battery；Second reserve battery and the second main power source
First branch connection.
Optionally, the fire alarm control system further include:
Hydrogen detection equipment, the hydrogen detection equipment are connect with matched central fire alarm control unit,.
Optionally, the hydrogen detection equipment is connect with the second branch of second main power source；
The inside of the hydrogen detection equipment is equipped with third reserve battery；The third reserve battery and the second main power source
Second branch connection.
Optionally, the fire alarm control unit further include:
Operating terminal, the operating terminal are connect with the third branch of first main power source.
Optionally, the fire alarm system include: multiple row central fire alarm control unit, multiple picture and text working equipments and
Multiple operating terminals；The multiple row central fire alarm control unit, the multiple picture and text working equipment and the multiple operation are eventually
End series connection forms closed loop；
It is connected in series between the multiple row central fire alarm control unit；The connection of each column central fire alarm control unit is multiple
Fire alarm junction box, the fire alarm junction box are used to receive the signal of fire detector；Each column central fire alarm control unit includes
The master controller and redundant manipulator of series connection；
The multiple picture and text working equipment and the multiple operating terminal pass sequentially through connecting line and multiple row concentrates fire report
Alert controller connection.
Optionally, each picture and text working equipment is connect with a column central fire alarm control unit；Each operating terminal and one
A picture and text working equipment connection；It is connected in series between the multiple operating terminal.
Optionally, each operating terminal is connect with a column central fire alarm control unit；Each picture and text working equipment and one
A operating terminal connection；It is connected in series between the picture and text working equipment.
Optionally, each fire alarm junction box connects multiple fire detectors；Each fire alarm junction box and be correspondingly connected with it is more
A fire detector forms closed loop.
In the utility model embodiment, the fire alarm system includes central fire alarm control unit；The collection moderate heat
The first end of calamity alarm controller is connect with the first branch of the first main power source；The inside of the central fire alarm control unit is set
There is the first reserve battery；First reserve battery is connect with the first branch of first main power source；The concentration fire report
The second end of alert controller and the first end of external cell connect, the second end of the external cell and first main power source
Second branch connection.In this way, when primary source failure occurs, it will lead to automatic fire alarm system and remain to and alarm, so that
The safety of nuclear power plant is higher.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the utility model embodiment will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of one of the structure chart of fire alarm system provided by the embodiment of the utility model；
Fig. 2 is the two of the structure chart of a kind of fire alarm system provided by the embodiment of the utility model；
Fig. 3 is the three of the structure chart of a kind of fire alarm system provided by the embodiment of the utility model；
Fig. 4 is the four of the structure chart of a kind of fire alarm system provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1 and Fig. 2, Fig. 1 is one of the structure chart of fire alarm system provided by the embodiment of the utility model, Fig. 1
It is the two of the structure chart of fire alarm system provided by the embodiment of the utility model.The utility model embodiment provides a kind of fire
Calamity alarm system, fire alarm system include central fire alarm control unit 1；The first end of central fire alarm control unit 1 with
The first branch of first main power source A connects；
The inside of central fire alarm control unit 1 is equipped with the first reserve battery 11；First reserve battery 11 and the first main electricity
The first branch of source A connects；
The second end of central fire alarm control unit 1 is connect with the first end of external cell 12, and the second of external cell 12
End is connect with the second branch of the first main power source A.
In the present embodiment, fire alarm system includes central fire alarm control unit 1.Central fire alarm control unit 1
One end is connect with the first branch of the first main power source A.Wherein, the first branch refers to each central fire alarm control unit 1 of connection
First end branch set.In figure by taking a central fire alarm control unit 1 as an example.First main power source A can be nuclear island
380V exchanges casualty power distribution system.The inside of central fire alarm control unit is additionally provided with the first reserve battery 11, and first with spare
Battery 11 is connect with the first branch of the first main power source A.That is the first branch of the first main power source A is standby by connection first
With battery 11, to connect central fire alarm control unit 1.In this way, when the first branch and Centralized Fire-alarm of the first main power source A
When the first end connection of controller 1, it can power on one side to central fire alarm control unit 1, give the first reserve battery 11 on one side
Charging.When the first main power source A powers to central fire alarm control unit 1, the first reserve battery 11 is not powered.When concentration fire
Alarm controller detects no alternating current input, is converted to the power supply of the first reserve battery 11 at this time.It can prevent first in this way
When branch breaks down, central fire alarm control unit 1 can not work on station.
Further, the second end of central fire alarm control unit 1 is connect with the first end of external cell 12, external cell
12 second end is connect with the second branch of the first main power source A.When the first branch of the first main power source A breaks down, second
Branch can also continue to power to external cell 12, and external cell 12 is connect with central fire alarm control unit 1, can give collection moderate heat
Calamity alarm controller 1 powers and simultaneously carries out power loss alarm, when such fire alarm control unit 1 breaks down, staff can and
Shi Zhixiao, and perform corresponding processing.
It is recorded according to experiment, when primary source failure, is supplied by the first reserve battery 11 being located in fire alarming and controlling cabinet
Electricity, the first reserve battery 11 charge 24 hours, capacity should can provide controller and its machine under the conditions of being discharged to final voltage
After other all relevant devices such as communication, interface in cabinet work 8 hours in the monitor state, remain to continue in an alarm state
Work 30 minutes.
External cell 12 can be set in cabinet and independently of the first two power supply, when failing for the power supply of front two
Power loss alarm, time of fire alarming are not less than 1 hour.
As an alternative embodiment, fire alarm system further include:
Picture and text working equipment 2, picture and text working equipment 2 are connect by connecting line with central fire alarm control unit 1.
In the embodiment, picture and text working equipment 2 can be shown in a manner of text and figure 1 on fire alarm control unit
The equipment of event and warning message.Picture and text working equipment 2 capable of emitting total sound and light alarm signal and fault-signal, graphical display are whole
The working condition of a fire alarm system and related fire-fighting system
Further, picture and text working equipment 2 is connect with the first branch of the second main power source B；
The inside of picture and text working equipment 2 is equipped with the second reserve battery 21；Second reserve battery and the second main power source
First branch connection.
In the embodiment, the second main power source B can be nuclear island ac uninterrupted power supply system.The first of second main power source B
Branch refers to the set for the branch connecting with multiple picture and text working equipments 2, in figure by taking a picture and text working equipment 2 as an example.Picture and text
Working equipment 2 is powered by the second main power source B, and when the first branch of the second main power source B breaks down, picture and text working equipment 2 is examined
No alternating current is measured, such second reserve battery 21 starts as the power supply of picture and text working equipment 2.It can be prevented in this way in the second main electricity
When source is broken down, picture and text working equipment can not work on station.
By experimental data it is found that when primary source failure, supplied by the backup power source being located in 2 musical instrument table cabinet of picture and text working equipment
Electricity, backup power source under the conditions of being discharged to final voltage, charge 24 hours, capacity should can provide picture and text working equipment 2 and its
After other all relevant devices such as communication, interface in cabinet work 8 hours under monitoring and state of a control, in an alarm state
It remains to work on 30 minutes, while can provide after fire telephone host works 8 hours in the monitor state, under talking state
It works on 30 minutes.
As an alternative embodiment, fire alarm control system further include:
Hydrogen detection equipment 7, hydrogen detection equipment 7 are connect with matched central fire alarm control unit 1.
In the present embodiment, hydrogen detection equipment 7, which can be realized, sets hydrogen situation real time monitoring to be positioned.Hydrogen detection is set
Standby 7 can continuously monitor each region that hydrogen may be accumulated in nuclear island factory building, automatic to inform whether operations staff has hydrogen to let out
Dew.
Further, hydrogen detection equipment 7 is connect with the second branch of the second main power source B；
The inside of hydrogen detection equipment 7 is equipped with third reserve battery 71；The of third reserve battery 71 and the second main power source B
The connection of two branches.
In the present embodiment, the second main power source B can be nuclear island ac uninterrupted power supply system.The second of second main power source B
Branch refers to the set for the branch connecting with multiple hydrogen detection equipment, in figure by taking a hydrogen detection equipment 7 as an example.Hydrogen is visited
Measurement equipment 7 is powered by the second main power source B, and when the second branch of the second main power source B breaks down, hydrogen detection equipment 7 is detected
To no alternating current, such third reserve battery 71 starts as the power supply of hydrogen detection equipment 7.It can be prevented in this way in the second main power source
When failure, hydrogen detection equipment can not work on station.
By experimental data it is found that when the second primary source failure, confession in 8 hours is automatically provided by maintenance-free battery group
Electricity.
As an alternative embodiment, the fire alarm control unit further include:
Operating terminal 3, operating terminal 3 are connect with the third branch of the first main power source A.
In the present embodiment, operating terminal 3 can be controlled concentrated alarm controller 1.Operating terminal 3 is by the first main electricity
The third branch of source A connects.
It should be noted that the above power-supply system should be equipped with overload protection and short-circuit protection, while configuration isolation
Device.Above-mentioned each main power supply issues alarm, while the acousto-optic warning message on photograph workstation when any insufficient.Power cabinet
Backup power source: when primary source failure, power supply in 8 hours is automatically provided by maintenance-free battery group, is remained in an alarm state
It works on 30 minutes.
It is the three of the structure chart of fire alarm system provided by the embodiment of the utility model referring to Fig. 3 and Fig. 4, Fig. 3；Fig. 4
It is the four of the structure chart of fire alarm system provided by the embodiment of the utility model.Fire report provided by the embodiment of the utility model
Alert system is applied to nuclear power plant, and nuclear power plant is generally by nuclear island, conventional island and corresponding balance of plant (balance of
Plant, BOP) composition.Due to the particularity of nuclear power plant, how fire preferably protects the personal safety of staff when occurring
Problem is particularly important.The fire alarm system of the utility model embodiment includes:
Multiple row central fire alarm control unit 1, multiple picture and text working equipments 2 and multiple operating terminals 3；Multiple row concentrates fire
Alarm controller 1, multiple picture and text working equipments 2 and the series connection of multiple operating terminals 3 form closed loop；
It is connected in series between multiple row central fire alarm control unit 1；Each column central fire alarm control unit 1 connects multiple fire
Alert junction box 4, fire alarm junction box 4 are used to receive the signal of fire detector；Each column central fire alarm control unit 1 includes series connection
The master controller 11 and redundant manipulator 12 of connection；
Multiple picture and text working equipments 2 pass sequentially through connecting line with multiple operating terminals 3 and connect.
In this implementation, Fig. 3 and Fig. 4 include two column central fire alarm control units, 1, two picture and text work with fire alarm system
For making equipment 2 and two operating terminals 3.
Wherein, central fire alarm control unit 1 is the heart of fire alarm system, can be used to receive fire signal and open
Dynamic fire alarm installation.It can also be used to instruction fire position and record for information about.For example, the sound and light alarm signal that starting is total
And fault-signal and text importing, printing are run and control information, and above- mentioned information are sent to fire alarm installation.Fire
Warning device may include picture and text working equipment 2, operating terminal 3 etc..Optionally, central fire alarm control unit 1 can be set to
In Centralized Fire-alarm control cabinet.
The utility model embodiment includes multiple row central fire alarm control unit 1, and each column central fire alarm control unit 1 connects
Receive the data information of corresponding region.Further, each region can be divided into multiple zonules, and each zonule can pass through
The fire alarm junction box 4 of connection central fire alarm control unit 1 is acquired fire information, and each fire alarm junction box 4 is connected with
Multiple fire detectors 5, fire alarm junction box 4 can be used for receiving the signal of fire detector 5.Fire detector 5 can be distributed
Different location in each zonule.Also, each fire detector 5 has different address codes.
Central fire alarm control unit 1 is by breaking down or the address code of fire, it can be determined that set out light a fire calamity or
The specific location of the fire detector 5 of person's failure.In the present embodiment, each column central fire alarm control unit 1 all includes main control
Device 11 and redundant manipulator 12, and master controller 11 and redundant manipulator 12 the data information of received corresponding region be phase
With.For example, the position of fire detector 5 corresponding with the fire alarm junction box that master controller 11 connects is A1Region, A2Area
Domain ... AnRegion.The then position of the fire detector 5 corresponding with the fire alarm junction box that master controller 11 connects of redundant manipulator 12
For A1Region, A2Region ... AnRegion.That is, in A1Region, A2Region ... AnEach region in region, at least there are two
Data can be respectively sent to master controller 11 and redundant manipulator by the fire detector 5 of fire detector 5, every same area
12.In trouble-free situation, master controller 11 is identical with the data information that redundant manipulator 12 receives.
The central fire alarm control unit 1 of nuclear island is placed on standard cabinet, it is desirable that front-back can repair.Centralized Fire-alarm
Controller 1 integrates first in relation to circuit and (information is to check whole system to the essential information of the state of device feature everywhere
Required for works fine order), followed by integrate all fire alarms, it may be assumed that sound equipment, light are always alarmed and each search coverage
Respective light warning.
Central fire alarm control unit 1 includes main power source, backup power source and accessory power supply.
Main power source uses 220V AC power source.Backup power source (central fire alarm control unit 1 is included): work as primary source failure
When, it is powered by the backup power source being located in fire alarming and controlling cabinet, backup power source is under the conditions of being discharged to final voltage, charging 24
Hour, capacity should can provide other all relevant devices such as communication, interface in controller and its cabinet in the monitor state
After work 8 hours, remain to continue working 30 minutes in an alarm state.It is configured so that power supply, nuclear power plant's fire report can be made
The reliable and stable operation of alert system, so that the trouble-free operation of full factory fire-fighting link.Accessory power supply (Centralized Fire-alarm control
Device 1 is included): the alarm power supply of an auxiliary is arranged in cabinet and independently of the first two power supply, loses for the power supply of front two
Power loss alarm when effect, time of fire alarming are not less than 1 hour.
It is configured so that power supply, the reliable and stable operation of nuclear power plant's fire alarm system can be made, so that full factory disappears
The trouble-free operation of anti-linkage.
Central fire alarm control unit 1 have good compatibility, friendly interface, have in/English display mode, can from
By switching.Centralized Fire-alarm empty packet 71 be responsible for from fire detector and module forward data, and make correctly alarm and
Breakdown judge.In addition, fire alarm control unit can be equipped at least three-level cryptoguard (and need to be supplied to staff), it is right respectively
Ying Yu: operator on duty；General operation personnel；Possess the senior executive that can modify so rights such as strong, change password.Collect moderate heat
Multistage microprocessor and storage system built in calamity alarm controller 1, the software of system, are programmed in main power source and standby electricity at data
When source powers off, all data will not disappear.Central fire alarm control unit 1 uses modular framework, so as to each circuit dilatation.Collection
Middle fire alarm control unit 1 can also have independent fire-fighting link function, and retain and receive the linkage life that other networked devices issue
Enable function.
Picture and text working equipment 2 is that 1 event and report on fire alarm control unit can be shown in a manner of text and figure
The equipment of alert information.Picture and text working equipment 2 capable of emitting total sound and light alarm signal and fault-signal, the entire fire report of graphical display
Alert system and related fire-fighting system working condition (such as: normal work, alarm and the failure of fire detector, fire resisting damper and
Switch state, operating condition of smoke exhaust fan of exhaust smoke valve etc.).There is the light of flashing to believe when alarming, on display interfaces
It number reminds, indicated position color of alarming on screen should change.Type information should reach A4 size, and word content
Flat word content and alarm card are consistent with alarming.
Picture and text working equipment 2 is arranged in master control room, long-range shutdown station and technical support centre, the more set figures of every unit setting
Literary working equipment 2.Picture and text working equipment 2 controls work station based on the graphical display of the desk-top technical grade PC machine of high-performance.Using special
A Direction Center is constituted with hardware and software, can show and control all-network node and network with text and graphics mode
Time.All information of central fire alarm control unit 1 can show that all alarms should all be to picture and text in picture and text working equipment 2
Working equipment 2 is alarmed.Optionally, picture and text working equipment 2 can be photograph workstation.
The main power source of picture and text working equipment 2 is 220V AC power source.When primary source failure, by being located at picture and text working equipment
Backup power source power supply in 2 musical instrument table cabinet, backup power source charge 24 hours in the case where electric discharge stops voltage conditions, and capacity should can
Other all relevant devices such as picture and text working equipment 2 and its communication, interface in cabinet work under monitoring and state of a control is provided
Make 8 hours, in 30 shares that remain to work in an alarm state, colleague can provide fire telephone host work in the monitor state
Made 8 as a child, worked under talking state 30 minutes.It is configured so that power supply, nuclear power plant's fire alarm system can be made
Reliable and stable operation so that the trouble-free operation of full factory's fire-fighting link.
The warning message that operating terminal 3 can be used for central fire alarm control unit is confirmed and is resetted, and is realized to collection
The control of middle fire alarm control unit 1.
Operating terminal 3 is long-range display and the control panel of central fire alarm control unit 1, is located at master control room.Master control room
The control of fire alarm system is completed by operating terminal 3, for example, to the sound-light alarm of fire and fault message, information at
Display and printing of reason process etc..In addition the operating terminal 3 of master control room is additionally provided with reactor coolant pump air suction type smoke
The switching control of detector.
Operating terminal 3 is arranged in master control room.Fire alarm system has the function of automatically and manually triggering fire alarm, fire
Fire detector 5 act when, signal can be sent to central fire alarm control unit 1, operating terminal 3, picture and text working equipment 2 and other
It shows in equipment.Fire alarm control unit can be confirmed and be resetted to warning message with operating terminal.
Operating terminal is long-range display and the control panel of fire alarm control unit, and more operations are arranged eventually in every unit
End, connect with master controller 11 and redundant manipulator 12 respectively.
Multiple picture and text working equipments 2 and multiple operating terminals 3 are connected by connecting line and multiple row central fire alarm control unit
It connects.Optionally, connecting line can be cable.
It is connected in series between multiple row central fire alarm control unit 1, multiple picture and text working equipments 2 and multiple operating terminals 3,
Form closed loop.Wherein, multiple row central fire alarm control unit 1, multiple picture and text working equipments 2 and multiple operating terminals 3 it
Between can pass through single mode optical fiber or RS-485 cable or multimode fibre connection.Also, concentrated alarm controller 1 has self-test function
Can, fault detection can be carried out to equipment in loop and route, when the equipment of loop or route failure, concentrated alarm control
The following failure that device 1 processed can prompt staff to confirm that region of interest is likely to occur: short circuit, open circuit, fire detector failure
Deng.Multiple fire detectors 5, multiple central fire alarm control units 1, multiple picture and text working equipments 2 and multiple operating terminals 3 are equal
Built-in short circuit isolator (single-point isolation), without separately plus independent short circuit isolation module on loop.
In addition, the data communication protocol of grid should ensure that system still can be normal when the short at one end of route or short circuit
Light is done.Can be according to operation needs, the operation rank of each region controller and sensing point in flexible setting network.System equipment is answered
With stronger Electromagnetic Compatibility, related request corresponding to EMC test in relevant device specification need to be met.Wherein,
Protocol type can be with are as follows: MODBUS-RTU.In this way, which nodes break down either in loop, it still can be from other
Connecting line carries out the transmission of signal, and fire alarm system still can work normally, in this way, it is possible to reduce because failure causes to report
The case where warning not in time, effectively improve the safety of fire alarm system.
It should be noted that field device should have stronger protective capacities that will can bear the influence such as strong corrosive, corrosion
Property need to meet specification and site environment related request.System equipment should have excellent humidity resistance, can be in moisture condensation, 100% wet
The lower operation steady in a long-term of degree.System equipment should have good grounding measures, and provide specific earthing mode and requirement.Should be furnished with
Overvoltage protection, should be able to easy to disassemble, replacement, maintenance and debugging.
As a kind of optional embodiment, as shown in figure 3, each picture and text working equipment 2 and a column Centralized Fire-alarm control
Device 1 processed connects；Each operating terminal 3 is connect with a picture and text working equipment 2；It is connected in series between multiple operating terminals 3.
In the present embodiment, the corresponding picture and text working equipment 2 of each column fire alarm control unit 1 and an operating terminal 3.Example
Such as, it is assumed that fire alarm system includes the first master controller 111, the first redundant manipulator 121, the second master controller 112, second
Redundant manipulator 122, the first picture and text working equipment 21, the second picture and text working equipment 22, the first operating terminal 31 and the second operation
Terminal 32, and series connection forms loop between each device.Wherein, the first master controller 111 and the first redundant manipulator 121 are corresponding
In the first picture and text working equipment 21 and the first operating terminal 31；First picture and text working equipment 21 and the first operating terminal 31 receive the
The message that one master controller 111 and the first redundant manipulator 121 are sent；Second master controller 112 and the second redundant manipulator 122
Corresponding to the second picture and text working equipment 212 and the second operating terminal 312；Second picture and text working equipment 212 and the second operating terminal
312 receive the relationship of the second master controller 112 and the second redundant manipulator 122.And the first master controller 111, the first redundancy
Controller 121, the second master controller 112 are connected in series between second redundant manipulator 122.
In this way, any one end of tubing loop is not broken down, can be reached pair from an other connecting line by information
The picture and text working equipment and operating terminal answered.For example, if occurring between the first master controller 111 and the first picture and text working equipment 21
Failure, then signal can be according to the first master controller 111, the first redundant manipulator 121, the second master controller 112, the second redundancy
Controller 122, the second picture and text working equipment 22, the second operating terminal 32, the first operating terminal 31, the first picture and text working equipment 21
Route transmitted.Still it will not influence the transmission of signal, fire alarm system still can work normally, and effectively improve fire
The safety of calamity alarm system.
As a kind of optional embodiment, as shown in figure 4, each operating terminal 3 and a column central fire alarm control unit 1
Connection；Each picture and text working equipment 2 is connect with an operating terminal 3；It is connected in series between picture and text working equipment 2.
In the present embodiment, the corresponding operating terminal 3 of each column fire alarm control unit 1 and a picture and text working equipment 2.Example
Such as, it is assumed that fire alarm system includes the first master controller 111, the first redundant manipulator 121, the second master controller 112, second
Redundant manipulator 122, the first picture and text working equipment 21, the second picture and text working equipment 22, the first operating terminal 31 and the second operation
Terminal 32, and series connection forms loop between each device.Wherein, the first master controller 111 and the first redundant manipulator 121 are corresponding
In the first picture and text working equipment 21 and the first operating terminal 31；First picture and text working equipment 21 and the first operating terminal 31 receive the
The message that one master controller 111 and the first redundant manipulator 121 are sent；Second master controller 112 and the second redundant manipulator 122
Corresponding to the second picture and text working equipment 212 and the second operating terminal 312；Second picture and text working equipment 212 and the second operating terminal
312 receive the relationship of the second master controller 112 and the second redundant manipulator 122.And the first master controller 111, the first redundancy
Controller 121, the second master controller 112 are connected in series between second redundant manipulator 122.In this way, not any the one of tubing loop
End is broken down, and information can be reached corresponding picture and text working equipment and operating terminal from an other connecting line.Example
Such as, if breaking down between the first master controller 111 and the first operating terminal 31, signal can according to the first master controller 111,
First redundant manipulator 121, the second master controller 112, the second redundant manipulator 122, the second operating terminal 32, the second picture and text work
Make equipment 22, the first picture and text working equipment 21, the first operating terminal 31 route transmitted.Still it will not influence the biography of signal
Defeated, fire alarm system still can work normally, and effectively improve the safety of fire alarm system.
As a kind of optional embodiment, each fire alarm junction box 4 connects multiple fire detectors 5 (with a fire in figure
For alert junction box 4), each fire alarm junction box 4 forms closed loop with the multiple fire detectors 5 being correspondingly connected with.
In the embodiment, fire detector 5, which refers to, detects nuclear power plant, the equipment for finding fire.Fire detector 5
The fixation position for needing side space is set, and divides search coverage.The selection of 5 type of fire detector and installation site is taken an examination
Consider: according to the concrete condition (such as: temperature, flame, smog, gas flammability) in place where kindling room or equipment；It should be with
The environmental condition of position is (such as: accessibility, environment temperature, ambient humidity, ionising radiation, gas attack, space empty air pressure
Power etc.) it is adapted.Each fire detector 5 has different address codes, and a fire alarm junction box 4 can be with multiple fire detections
Device 5 connects.Fire alarm junction box 4 forms closed loop with corresponding multiple fire detectors 5, and closed loop is supplied by DC power supply
Electricity, and various types of fire detectors can be installed.The geographical zone limited is covered, is divided into again on same detection circuit several
Different search coverages.
Type, quantity and the position selection of fire detector 5 should make fire detection reliable, effective, and same search coverage can
Several different types of fire detectors are used as needed.For example, sense cigarette, flame and heat detector etc..If using air-breathing
Formula smoke fire detector can become module in master control room and display equipment setting, can be programmed and show have power loss
The passive contact output terminal of alarm, the passive contact output terminal with other fault alarms (non-Loss of power failure), and can be
Show equipment and remote reset.All types of fire detectors 5 should apply to same detection circuit.In this way, need to only pass through
One line is by the connection of multiple fire detectors 5 and fire alarm junction box, and structure is simple, save the cost.
As a kind of optional embodiment, the fire alarm junction box 4 passes through signal with the central fire alarm control unit 1
Line connection.
In the present embodiment, signal wire is used to the signal of fire alarm junction box 4 being transmitted to central fire alarm control unit 1,
In, signal wire can be Multiple Type.
Optionally, the signal wire is shielded cable.Shielded cable is that signal wire is wrapped up using metal net shaped braiding layer
The transmission line to get up.Braiding layer is usually red metal or tin-coated copper.Inner conductor interference can be entered to avoid interference signal, effectively
Ground filters out unnecessary electromagnetic wave.
It should be noted that the external cabling of the central fire alarm control unit 1 of the present embodiment is all made of shielded cable, remove
The system counter interference and shielding that non-equipment and equipment are constituted do not require, and shielding line is supported vacantly to be arranged, and otherwise fire is visited
Shielding line connecting terminal should all be provided by surveying device 5 and other fire equipment.
As a kind of optional embodiment, the fire alarm system further include:
Multiple regions fire alarm control unit 6, multiple regions fire alarm control unit 6 and matched Centralized Fire-alarm control
Device 1 processed forms closed loop.
In the present embodiment, nuclear island can be acquired fire information with the structure of above-described embodiment, for routine
Island and corresponding BOP can then be acquired fire and fault message by zone fire alarm control unit 6.Regional fire
Alarm controller 6 is respectively arranged on conventional island and each region of BOP.
The matched central fire alarm control unit 1 of multiple regions fire alarm control unit more than 6 forms closed loop, wherein
Central fire alarm control unit 1 can be central fire alarm control unit any one or more in fire alarm system.For example, it is assumed that
Zone fire alarm control unit 6 includes first area fire alarm control unit 61 and the second fire alarm control unit 61, if first
Zone fire alarm control unit 61, second area fire alarm control unit 62 and the second redundant manipulator 122 are formed into a loop, then and the
The detection information of one zone fire alarm control unit 61 and second area fire alarm control unit 62 can be transmitted to the second redundancy
Controller 122.If the route between more than 61 second redundant manipulator 122 of first area fire alarm control unit breaks down, nothing
Method transmits information.At this point, the data of first area fire alarm control unit 61 still can pass through the second fire alarm control unit
61, the line transmission of the second redundant manipulator 122.The information transmission of system is not influenced.Pass through the fire and failure to each region
Information is acquired, moreover it is possible to the information of conventional island and BOP is monitored, also, when one end line failure, it also can be from
The other end carries the information to central fire alarm control unit, improves the safety of fire alarm system.
In addition, central fire alarm control unit 1 and multiple regions fire alarm control unit 6 constitute loop, so that nuclear island is fiery
The networking of the fire alarm systems such as calamity alarm system and conventional island, BOP.The state of conventional island fire alarm system and alarm can be in cores
Island fire alarm system shows and alarms, and nuclear island fire alarm system can carry out fire protection linkage control to conventional island.Concentrate fire
Alarm controller 1 should have multiple standards network interface, can facilitate (as installed photoelectric conversion card additional) by optical fiber or cable with
Other fire alarm control units, which are linked to be, has changed road.Optionally, the loop network of each fire alarm control system composition allows
Node should not be less than 64.
As a kind of optional embodiment, the fire alarm system further include:
Multiple hydrogen detection equipment 7, each hydrogen detection equipment 7 are connect with matched central fire alarm control unit 1.
In the present embodiment, hydrogen detection equipment 7, which can be realized, sets hydrogen situation real time monitoring to be positioned.Hydrogen detection is set
Standby 7 can continuously monitor each region that hydrogen may be accumulated in nuclear island factory building, automatic to inform whether operations staff has hydrogen to let out
Dew.
For example, when certain region hydrogen content be higher than setting value, at this point, determine hydrogen reveal, therefore by with the area
1 alert of central fire alarm control unit that the hydrogen detection equipment 7 in domain connects.For example, it is assumed that hydrogen detection equipment 7
It is connect with the first master controller 111, when hydrogen detection equipment 7 detects the density of hydrogen in the region of the first main controller 111 detection
It is greater than the set value, then sends data to the first master controller 111, the first master controller 111 passes through each fire alarm equipment again
(such as picture and text working equipment, operating terminal) alarms.In this way, can alarm in time gas leakage, work people is notified
Member's processing in time, prevents nuclear power plant from situations such as gas leakage is even exploded occurs.Improve the safety of fire alarm system.
In addition, hydrogen detection equipment may include main power source and backup power source.Main power source uses 220V AC power source.It is spare
Power supply is used for when primary source failure, and power supply in 8 hours is automatically provided by maintenance-free battery group.The above power-supply system should be equipped with
There are overload protection and short-circuit protection, while configuration isolation device.Above-mentioned each main power supply issues alarm when any insufficient, together
When on picture and text working equipment 2 acousto-optic warning message.Power cabinet main power source uses 220V AC power source.Power cabinet backup power source
For automatically providing power supply in 8 hours by maintenance-free battery group when primary source failure, remain to continue work in an alarm state
Make 30 minutes.It is configured so that power supply, the reliable and stable operation of nuclear power plant's fire alarm system can be made, so that full factory disappears
The trouble-free operation of anti-linkage.
As a kind of optional embodiment, the fire alarm system further include:
Multiple display equipment (not shown)s, connect, for showing correspondence with matched central fire alarm control unit 1
The data information in region.
In the present embodiment, display equipment refers to the display equipment of multiple regions in the nuclear island for be distributed in nuclear power plant, is set to master
The public domains such as workshop entrance, corridor, passageway, personnel's transfer area.Wherein, display equipment can be mimic panel on the spot.For showing
Show the fire alarm information of corresponding region.Show that equipment is received from the corresponding region that central fire alarm control unit 1 is sent
Fire alarm information issues sound-light alarm, indicates and keep the information at the position of fire generation；Visual alarm is concentrating fire
Alarm controller 1 cannot be eliminated manually before resetting；Acoustic alarm signal can be eliminated manually, and have noise reduction prompt.Display equipment reports
Alert signal removal is to be carried out after fire suppression by picture and text working equipment 2, cannot be executed on the spot.
The content for showing equipment includes: Civil Specialities relevant information, figure, the number in room of architectural plane etc.；Fire prevention
The expression in area, fire safety area and non-security fire prevention cell, evacuating personnel with the boundary representation different series of different colours
Channel fire prevention cell and sanctuary；The status indicator lamp of the fire detector of each fire district, double-colored display, red indicate fire
Calamity alarm, blinking red lamp indicate first alarm, and green indicates breakdown detector；On-the-spot test button, for various display lamps
Test；Power supply status instruction；Indicate position of this mimic panel in the figure.
It shows that equipment repeats to show the working condition of corresponding region fire alarm system to graphically, and passes through button control
Make the fire-fighting equipments such as fire resisting damper and the exhaust smoke valve in the region.A certain display equipment fault will not influence the volume work of other display equipment
Make the operation with system.Show the button actions and failure (internal fault and communication with the outside world event including showing equipment of equipment
Barrier) it should be able to alarm in matched central fire alarm control unit.It is alarmed by the display equipment respectively at different zones, it can
To notify staff nearby, fire condition is checked and handled accordingly, can be improved the treatment effeciency of fire.
According to the size and field condition of display equipment, using landing or the mounting means of wall hanging.It is mounted on indoor
Show that the degree of protection of equipment is not less than IP54, the degree of protection for being mounted on outdoor and wet environment display equipment is not less than
IP65.Show that the preparation time of the backup power source of equipment is consistent with central fire alarm control unit, power failure and equipment
Failure, which needs to show in central fire alarm control unit 1, alarms.
It should be noted that Fiber splice tray needed for above-mentioned central fire alarm control unit 1, display equipment etc. must pacify
In equipment enclosure, all bin bodies are required according to procedure stipulation spray painting or plastic-spraying.
As a kind of optional embodiment, the fire alarm system further include:
I &C equipment is digitized, is connect with multiple central fire alarm control units, for controlling the work shape of fire-fighting device
State.
In the present embodiment, digitlization I &C equipment is responsible for executing the control of fire resisting damper related with fire-fighting and exhaust smoke valve etc.,
And the status information of valve is sent to central fire alarm control unit 1, it is shown for master control room aobvious with multiple display equipment
Show.Hydrogen detection equipment 7 can also be retransmited by warning message by central fire alarm control unit 1 to digitlization I &C equipment.
The fault-signal of the level-one of each hydrogen detection equipment, secondary alarm signal and every hydrogen alarm controller is sent to digitizer
Control equipment.
It should be noted that the environmental requirement of the utility model embodiment can be between explosion-proof house.In some regions (as stored
Between battery chamber, oil storage) in equipment requirement select antiknock device, wherein temperature-sensitive, smoke detector select intrinsic safety type.Nuclear island and core
Security-related region.The related equipment peace of detector and pipeline and related system in nuclear island in region relevant to nuclear safety
The shockproof requirements of dress should ensure that the normal work in safe shutdown earthquake.All devices are considered as local environment, to guarantee it
Adaptability and persistence etc..
Fire alarm equipment is mounted on nuclear island factory building each region, wherein being mounted on red sector (D > 0.1Sv/h, 1Sv ≈
Fire detection equipment 102rad) carries out radiation resistance test according to multiple months intergal doses: smoke point detector and temperature-sensitive are visited
Survey device 18000Gy, temperature sensor 18000Gy, input module 700Gy.
Installation to fire detector 5 has several installation standards and pedestal for various detectors according to environmental condition:
Installation when environmental condition is dry；Installation when environmental condition humidity；The installation of outdoor environment；Installation at the difficulty of channel；It is anti-
Installation under quick-fried environment；Pre-buried installation (installation of ceiling) in office's ceiling.
It is required that completing installation test to guarantee the accuracy of fire detector position.According to the difference of S.I biogas engine, installation is surveyed
Examination will in the case that exist and there is no ventilating system operation two kinds implement, and test in using special flue gas occur
Device, flue gas caused by smoke generator should have characteristic identical with room S.I biogas engine, and will not set to other systems
It is standby to generate any undesirable consequence.Installation, which should meet only progress shirtsleeve operation, just can carry out nuclear island automatic fire alarm system
Important live operation test, and can be carried out inspection, cleaning and maintenance.
The related all or part of elements of equipment should be convenient for changing.To the electrically and mechanically spy of the interchangeability of had an impact equipment
Property and the corresponding margin of tolerance should all be described.The installation of equipment should be designed to reduce replacing construction to the greatest extent.After considering
It may replace, the physical characteristic in relation to component or equipment should be able to reduce the number operated when installation and removal.Equipment
The mark of the mark of model and component is for stand-by equipment and both has installed equipment and answers and is just the same.In addition, detector pedestal
Design any kind of detector should be made general, for example, Point-type fire detectors can be replaced with point type heat detector
Without changing installing.
The utility model embodiment also needs to carry out system routine test, and system at regular intervals tests main purpose are as follows: each
Detecting devices operates normally, and fire alarm control unit and its component operate normally, and mimic panel operates normally on the spot, between main pump
Aspirating smoke detection system operates normally under automatic, manual mode.System at regular intervals test can operate normally work in power plant
It is carried out under condition, the detecting devices being mounted in reactor building completes routine test during the refueling period.
Test mainly include real fire test, remaining test specifically include that circuit without leakage loss inspection, ensure personnel and
The inspections of the various operations of equipment safety, the inspection of the rolling inspection of equipment components insulation pressure-proof inspection, particular measurement function.
If necessary, to the inspection of the setting valve of each protective device and adjuster.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, are belonged within the protection of the utility model.
Claims (10)
1. a kind of fire alarm system, which is characterized in that the fire alarm system includes central fire alarm control unit；It is described
The first end of central fire alarm control unit is connect with the first branch of the first main power source；
The inside of the central fire alarm control unit is equipped with the first reserve battery；First reserve battery and first master
The first branch of power supply connects；
The second end of the central fire alarm control unit and the first end of external cell connect, the second end of the external cell
It is connect with the second branch of first main power source.
2. fire alarm system according to claim 1, which is characterized in that the fire alarm system further include:
Picture and text working equipment, the picture and text working equipment are connect by connecting line with central fire alarm control unit.
3. fire alarm system according to claim 2, which is characterized in that the picture and text working equipment and the second main power source
The first branch connection；
The inside of the picture and text working equipment is equipped with the second reserve battery；The first of second reserve battery and the second main power source
Branch connection.
4. fire alarm system according to claim 3, which is characterized in that the fire alarm control system further include:
Hydrogen detection equipment, the hydrogen detection equipment are connect with matched central fire alarm control unit.
5. fire alarm system according to claim 4, which is characterized in that the hydrogen detection equipment and second master
The second branch of power supply connects；
The inside of the hydrogen detection equipment is equipped with third reserve battery；The second of the third reserve battery and the second main power source
Branch connection.
6. fire alarm system according to claim 5, which is characterized in that the fire alarm control unit further include:
Operating terminal, the operating terminal are connect with the third branch of first main power source.
7. fire alarm system according to claim 6, which is characterized in that the fire alarm system includes: multiple row collection
Middle fire alarm control unit, multiple picture and text working equipments and multiple operating terminals；The multiple row central fire alarm control unit, institute
It states multiple picture and text working equipments and the multiple operating terminal connects to form closed loop；
It is connected in series between the multiple row central fire alarm control unit；Each column central fire alarm control unit connects multiple fire alarms
Junction box, the fire alarm junction box are used to receive the signal of fire detector；Each column central fire alarm control unit includes series connection
The master controller and redundant manipulator of connection；
The multiple picture and text working equipment and the multiple operating terminal pass sequentially through connecting line and the control of multiple row Centralized Fire-alarm
Device connection processed.
8. fire alarm system according to claim 7, which is characterized in that each picture and text working equipment and a column collection moderate heat
The connection of calamity alarm controller；Each operating terminal is connect with a picture and text working equipment；It connects between the multiple operating terminal
Connection.
9. fire alarm system according to claim 7, which is characterized in that each operating terminal concentrates fire report with a column
Alert controller connection；Each picture and text working equipment is connect with an operating terminal；It is connected in series between the picture and text working equipment.
10. fire alarm system according to claim 7, which is characterized in that each fire alarm junction box connects multiple fire
Detector；Each fire alarm junction box forms closed loop with the multiple fire detectors being correspondingly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308383.7U CN209343488U (en) | 2019-03-11 | 2019-03-11 | A kind of fire alarm system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308383.7U CN209343488U (en) | 2019-03-11 | 2019-03-11 | A kind of fire alarm system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111696295A (en) * | 2019-03-11 | 2020-09-22 | 华龙国际核电技术有限公司 | Fire alarm system |
| CN113129537A (en) * | 2020-01-16 | 2021-07-16 | 华龙国际核电技术有限公司 | Fire alarm device |
-
2019
- 2019-03-11 CN CN201920308383.7U patent/CN209343488U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111696295A (en) * | 2019-03-11 | 2020-09-22 | 华龙国际核电技术有限公司 | Fire alarm system |
| CN113129537A (en) * | 2020-01-16 | 2021-07-16 | 华龙国际核电技术有限公司 | Fire alarm device |
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