CN206451323U - Nuclear power plant's reactor building fire detecting system - Google Patents
Nuclear power plant's reactor building fire detecting system Download PDFInfo
- Publication number
- CN206451323U CN206451323U CN201621208215.3U CN201621208215U CN206451323U CN 206451323 U CN206451323 U CN 206451323U CN 201621208215 U CN201621208215 U CN 201621208215U CN 206451323 U CN206451323 U CN 206451323U
- Authority
- CN
- China
- Prior art keywords
- fire
- fire detector
- detector
- junction box
- reserved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fire Alarms (AREA)
Abstract
The utility model discloses a kind of nuclear power plant's reactor building fire detecting system, including several fire detectors, first is sequentially connected in series to N fire detectors, wherein N >=1, first fire detector and the first junction box are electrically connected with, N fire detectors and the second junction box are electrically connected with, first junction box and the second junction box are all connected with fire alarm control unit, the adjacent position of each fire detector is designed with corresponding reserved fire detector, first is sequentially connected in series to N reserved fire detectors, and circuit is switched when fire detector breaks down.Emergency bypass of the present utility model can be cut by low dosage region junction box and be run, fire detector in high dose area breaks down during Power operation, maintenance personal can release faulty line in the junction box of cold spot area, and emergency bypass puts into operation, the region is set to continue to realize detection, eliminate the lower fire detector failure of high irradiation caused without detection risk, substantially increase production safety.
Description
Technical field
The utility model is related to technical field of nuclear power, more particularly to a kind of nuclear power plant's reactor building fire detecting system.
Background technology
In core fire incident, the radioactive substance of leakage is the main hazard source caused casualties.Nuclear power station can
Combustion things species is more, and quantity is big, and ignition source energy is high, distribution is wide, and system equipment and operation program are complicated, are endangered with higher fire
It is dangerous.
Nuclear island is the maincenter of nuclear power station, and system complex, equipment is lengthy and tedious, vdiverse in function, and reactor core is nuclear fuel storage
Region.Oil system, electrical system, activated carbon of ventilating system of nuclear island etc. all have higher fire risk, once hair
Raw fire incident, if can not be effectively controlled, not only results in serious economic loss, will also directly threaten nuclear safety
Related system, it is most likely that trigger nuclear accident.The main fire hazard position of nuclear island is reactor building and nuclear auxiliary building.
Reactor building is also known as containment, is a cylindrical prestressed armored concrete knot for carrying torispheric domes
Structure.Mainly there are reactor and other primary Ioops capital equipments in factory building, equipment includes main pump, steam generator, voltage-stablizer etc..Factory
There are part engineered safeguards features and accessory system in room.Combustible in reactor building is mainly main pump lubricating oil, activity
Activated carbon and the combustible relevant with PVC cables in charcoal iodine filter.
Reactor building (RX) is made up of containment and internal structure, and internal structure is that the reinforcing bar being located inside containment is mixed
Solidifying soil structures and metal framework, play a part of supporting reactor and its auxiliary device.For limitation superpressure, in RX main equipment every
Between all lead to containment air, and it is some it is special must implement sealed room, do not allow then fire risk is installed in it
Equipment.
Therefore nuclear power station fire protection work is particularly important, particularly fire detecting system, to nuclear plant safety phase
Close equipment to play a protective role, the quality of its performance will be directly connected to the safe operation of nuclear power station.
The capital equipment of current fire detecting system includes：CZ10 controllers, i.e. 1JDT101AR and 2JDT201AR, respectively
The external detection loop that fire detector, base and address module etc. are constituted is planted, and is distributed in the flag indicator at scene
And mimic panel.
Base and address module base are used to install above-mentioned fire detector to constitute detection circuit.Base is built with discrete
Each sensing point is given an independent address, each sensing point by formula address module ZZ90I or ZZ90MI, this address module
Specific position can be found by CZ10 controllers.
Control panel mainly includes center fire detecting plate and reactor coolant pump detection disk on the spot.
Fire alarm signal is outer except being shown in the fire detecting plate of center, also set flag indicator at the scene with
Repeat to show in mimic panel, to be conducive to the on-the-spot make an inspection tour for running office worker.
The course of work is mainly：
Detection circuit outside the composition such as various fire detectors, base and address module, is distributed in the area to be detected
Domain.When the fire detector for being distributed in each factory building of nuclear island detects fire signal, center fire detecting plate is that can send sound
Alarm signal, while warning message will be shown in liquid crystal window.In addition, flag indicator or mimic panel can also be provided on the spot
The alarm signal repeated.Warning message will be preserved by center fire detecting plate, while being printed out on mini-printer.
But, in actual use, because fire detector is typically intelligent fire detector, using integrated
Chip is more, and the capability of resistance to radiation of integrated chip is often weaker, and the high dose region that result in reactor building is (i.e. red
Area) set fire detector easily break down.If occurring the fire detector failure in these regions during Power operation,
Because dosage is higher, if maintenance personal enters maintenance, larger risk can be undertaken, therefore is not taken under normal circumstances into maintenance
Mode, so the fire detector in some region can be caused unavailable for a long time, bring potential safety hazard, once occur net fire effect
It is extremely serious, it is possible to cause serious economic loss and casualties.
In this regard, researcher is improved fire detector, such as Publication No. 204044964U patent document is public
The spoke on a kind of used in nuclear power station fire detector of resistance to irradiation, including shell and the circuit board being housed in shell, circuit board is opened
According to rapid wear component centralized arrangement in irradiation vulnerable areas, the irradiation vulnerable areas of the two sides difference corresponding circuits plate of shell is set
Lead screen.But above-mentioned fire detector can only reduce the risk that irradiation is damaged, damaged once occurring irradiation, still result in certain
Individual region cannot get detection for a long time, bring potential safety hazard.
Utility model content
The utility model provides a kind of nuclear power plant's reactor building fire detecting system, can solve high dose area detection
Device failure can not repair the problem of causing to lose fire detection ability for a long time.
The utility model discloses a kind of nuclear power plant's reactor building fire detecting system, including several are distributed in high agent
The fire detector in area is measured, the first fire detector to N fire detectors is sequentially connected in series, wherein N >=1, the first detections
Device is electrically connected with the first junction box positioned at cold spot area, N fire detectors and the second junction box positioned at cold spot area
It is electrically connected with, the first junction box and the second junction box are all connected with fire alarm control unit, in addition to emergency bypass, emergency bypass bag
Some reserved fire detectors are included, the adjacent position of each fire detector is designed with corresponding reserved fire detector, the
One reserved fire detector to N reserved fire detectors are sequentially connected in series, wherein N >=1, when fire detector breaks down,
First junction box disconnects with the first fire detector, and is electrically connected with the first reserved fire detector, the second junction box
Disconnect, and be electrically connected with N reserved fire detectors with N fire detectors.
Further, the interface of the first fire detector connects the first inlet wire, the interface connection first of N fire detectors
Outlet, wherein N >=1, fire alarm control unit is respectively with going line and loop line to be connected, and the first inlet wire is with going line to pass through the first junction box
It is electrically connected with, the first outlet is electrically connected with loop line by the second junction box.
Further, the first inlet wire is with removing terminal block short circuit of the line by the first junction box, and the first outlet passes through with loop line
The terminal block short circuit of second junction box.
Further, the interface of the first reserved fire detector connects the second inlet wire, the interface of N reserved fire detectors
Connect the second outlet, wherein N >=1；When fire detector breaks down, the first reserved fire detector is with removing line by first
Junction box is electrically connected with, and N fire detectors are connected by the second junction box with loop line and are electrically connected with.
Further, when fire detector breaks down, the second inlet wire is with going line to pass through the terminal block of the first junction box
Short circuit, the terminal block short circuit that the second outlet passes through the second junction box with loop line.
Further, fire detector and reserved fire detector are point type fire detector.
Further, fire detector and reserved fire detector are code-shaped fire detector.
Further, the address of the reserved fire detector of the geocoding of each fire detector setting adjacent thereto is compiled
Code-phase is same.
Further, fire detector and reserved fire detector are non-coding type fire detector, non-coding type fire
The interface module for being used for recognizing each non-coding type fire detector is provided between fire detector and fire alarm control unit.
Further, fire detector is ion smoke detector.
Further, fire detector is optics smoke fire detector.
Further, fire detector is line style light beam smoke fire detector.
Further, fire detector is flame detector.
Further, fire detector is heat fire detector.
Compared with prior art, the utility model adds the reserved fire detector in emergency bypass, emergency bypass
Junction box's incision that can be by being arranged in low dosage region is run, and fire detector occurs in high dose area during such as Power operation
Failure, maintenance personal need not enter high dose area carry out change failure fire detector, can cold spot area junction box
Faulty line is released, and emergency bypass is put into operation, makes the region continue to realize detection, the fire in high dose area is reduced
Fire detector breaks down and can not the fire safety evaluating hidden danger brought of working service.
Brief description of the drawings
Fig. 1 is the wiring schematic diagram in a kind of embodiment of the present utility model；
Conspectus when Fig. 2 does not break down for fire detector in Fig. 1；
Fig. 3 be Fig. 1 in fire detector break down after switching conspectus；
Conspectus when Fig. 4 does not break down for fire detector in another embodiment of the present utility model；
Fig. 5 be Fig. 4 in fire detector break down after switching conspectus.
Embodiment
The utility model is described in further detail below by embodiment combination accompanying drawing.
Embodiment one
Fig. 1 is referred to, the utility model discloses a kind of nuclear power plant's reactor building fire detecting system, including several
It is distributed in fire detector, the first junction box 3, the second junction box 4 and the emergency bypass of high dose area.Wherein the first detection
Device 1 to N fire detectors are sequentially connected in series, and wherein N >=1, the first fire detectors 1 and N fire detectors are located at head respectively
Tail two ends, fire detector therebetween is sequentially connected in series.In the present embodiment, N=2.In other embodiments, N can be
Natural number more than 2, such as 3,4,5 etc., it can be set according to different demands.For example：First fire detector 1 is located at high dose area
Numbering is that in R448 room, it is in R548 room that the second fire detector 2, which is located at high dose area numbering,.First detection
Device 1 is electrically connected with the first junction box 3 positioned at cold spot area, and the second fire detector 2 positioned at the second of cold spot area with connecing
Line case 4 is electrically connected with, and the first junction box 3 is connected with fire alarm control unit 5 respectively with the second junction box 4.Specific connected mode
For：The interface of first fire detector 1 connects one end of the first inlet wire 8, and the other end of the first inlet wire 8 passes through the first junction box 3
With going line 10 to carry out terminal block short circuit, line 10 is gone to be electrically connected with fire alarm control unit 5.The interface of second fire detector 2
One end of the first outlet 9 is connected, the other end of the first outlet 9 is electrically connected with by the second junction box 4 with loop line 11, loop line
11 are electrically connected with fire alarm control unit 5.First junction box 3, the first fire detector 1, the second fire detector 2, second
Junction box 4 and the formation of fire alarm control unit 5 loop.
Emergency bypass includes some reserved fire detectors.The adjacent position of each fire detector is designed with corresponding one
Reserved fire detector, the first reserved fire detector 6 and the second reserved fire detector 7 are sequentially connected in series.Visited in the first fire
Survey when the fire detector 2 of device 1 and/or second breaks down and switch circuit, make the first reserved fire detector 6 and the first junction box
3 are electrically connected with, and the second reserved fire detector 7 is electrically connected with the second junction box 4.Specifically connected mode is：First is standby
The second inlet wire 12 is connected with the interface of fire detector 6, the interface of the second reserved fire detector 7 connects the second outlet 13,
Under regular situation：Second inlet wire 12 is connected in the terminal block of the first junction box 3, and the second outlet 13 is connected to the second junction box 4
Terminal block on.When fire detector breaks down, the first inlet wire 8 is disconnected with removing short circuit of the line 10 in the first junction box 3,
And will remove the inlet wire 12 of line 10 and second short circuit at the terminal block in the first junction box 3,；The first outlet 9 is disconnected with loop line 11 to exist
Short circuit in second junction box 4, and by the outlet 13 of loop line 11 and second short circuit at the terminal block in the second junction box 4.
Wherein, fire detector and reserved fire detector are point type fire detector, in the present embodiment, and fire is visited
Survey device and reserved fire detector are the fire detector of the same model of same manufacturer production.
Above-mentioned fire detector and reserved fire detector is code-shaped fire detector, the first fire detector 1 with
The coded address of first reserved fire detector 6 is identical, the coding of the second fire detector 2 and the second reserved fire detector 7
Address is identical, is easy to standby fire detector energy normal work after circuit switching, while fire alarm control unit 5 can also be known automatically
Position where other reserved fire detector.
Fire detector can be ion smoke detector, optics smoke fire detector, line style light beam sense pyrotechnics
One kind in fire detector, flame detector, heat fire detector.
Wherein ion smoke detector is quick on the draw for the particulate that high temp objects release out, its cardinal principle
Exactly when the particulate that external firing is produced enters outer ionisation chamber, the ionic activity of outer ionisation chamber is influenceed, inside and outside electricity is changed
From the electric current of room, so as to generate alarm signal.
A large amount of visible smokes that optics smoke fire detector is produced for burning are quick on the draw, and its operation principle is：Normally
In the case of, optical receiving set does not receive the light that light source is sent, when a large amount of smoke particles enter in sampling room, particulate refraction light
Line, when more than defined condition, optical receiving set receives the light of some strength, produces alarm signal.
A large amount of infrared lights that line style light beam smoke fire detector is produced when being burnt for object are quick on the draw, its work
Principle is：When exterior object burns, fire detector receives infrared light, (typically in 30s after reaching to a certain degree
It is interior) produce alarm signal.
The device of flame detector is made a response to modulated Fire Radiation, and this radiation modulation is fixed on 5~25Hz,
For offsetting the radiation sent by stationary source.Flame detector is located in the equipment room of frequent store oil and fuel oil, and it reacts
Time should be 30 seconds, and error is ± 10%.This time calculates since flame occurring.
Heat fire detector is according to setting valve to the temperature rise rate in the range of 5~20 DEG C/min and 59 DEG C ± 5 DEG C of temperature
Degree definite value is made a response, and the reaction time determines the setting of temperature rise rate.
By taking embodiment one as an example, illustrate occupation mode of the present utility model.
Equipment is installed：The inaccessible region during the high dose region of nuclear power plant's reactor building and Power operation,
In the range of 1 meter of fire detector installation site, then a reserved fire detector is installed, the address of reserved fire detector is compiled
Code is identical with the geocoding of fire detector.Reason is that fire detecting system is generally interactive intelligent system, if standby
With branch road after incision work, because the geocoding of reserved fire detector is different from original fire detector, it is possible to
Cisco unity malfunction, can quote failure.Fig. 2 is referred to, cold standby circuit connection case is set in reactor building outer shroud corridor region,
Including the first junction box 3 and the second junction box 4.In the first junction box 3, the inlet wire 8 of line 10 and first is removed by terminal block short circuit,
In the second junction box 4, the outlet 9 of loop line 11 and first passes through terminal block short circuit.Go line 10 and loop line 11 respectively with fire alarm
Controller 5 is connected.
Routine test：During overhaul, functional test is carried out to reactor building fire detecting system, fire spy is carried out first
The functional test of device is surveyed, after confirming that corresponding fire detector warning function is normal in fire alarm control unit 5, is carried out standby
Fire detector is tested, and what reserved fire detector was tested concretely comprises the following steps：, will in the first junction box 3 and the second junction box 4
The inlet wire 8 of line 10 and first is gone to disconnect, and the second inlet wire 12 with removing line 10 by terminal block short circuit, by the outlet of loop line 11 and first
9 are disconnected, and the second outlet 13 is passed through terminal block short circuit with loop line 11.Recover to go the inlet wire 8 of line 10 and first to connect after being completed
Connect, the outlet 9 of loop line 11 and first is connected, and is confirmed in fire alarm control unit 5, the fault message of no correspondence detector.
Fig. 3 is referred to, when fire detector breaks down during Power operation, the first junction box of outer shroud corridor can be entered
3 and second at junction box 4, will go the inlet wire 8 of line 10 and first to disconnect, the second inlet wire 12 with removing line 10 by terminal block short circuit,
The outlet 9 of loop line 11 and first is disconnected, the second outlet 13 is passed through terminal block short circuit with loop line 11.In fire alarm control unit 5
After middle confirmation fault-free, recover the chamber door of cold standby circuit connection case, and exit reactor building.
Embodiment two：
Fig. 4 and Fig. 5 are referred to, and unlike embodiment one, fire detector and reserved fire detector are non-volume
Pattern fire detector, being provided between fire detector and fire alarm control unit 5 is used to recognize connecing for each fire detector
Mouth mold block 14.Using non-coding type fire detector regardless of geocoding, it is only necessary to recognized and changed by interface module 14
.
Above content is to combine specific embodiment further detailed description of the utility model, it is impossible to assert
Specific implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be considered as category
In protection domain of the present utility model.
Claims (14)
1. a kind of nuclear power plant's reactor building fire detecting system, including several are distributed in the fire detector of high dose area,
First fire detector to N fire detectors are sequentially connected in series, wherein N >=1, and first fire detector is with being located at low dosage
First junction box in area is electrically connected with, and the N fire detectors are electrically connected with the second junction box positioned at cold spot area, institute
State the first junction box and be all connected with fire alarm control unit with the second junction box, it is characterised in that be described standby also including emergency bypass
Include some reserved fire detectors with branch road, the adjacent position of each fire detector is designed with standby described in corresponding one
With fire detector, the first reserved fire detector to N reserved fire detectors is sequentially connected in series, wherein N >=1, in the fire
When fire detector breaks down, first junction box disconnects with the first fire detector, and is visited with first reserved fire
Survey device to be electrically connected with, the N reserved fires detector breaks with second junction box with the N fire detectors
Open, and be electrically connected with the N reserved fire detectors.
2. nuclear power plant's reactor building fire detecting system according to claim 1, it is characterised in that first fire
The interface of detector connects the first inlet wire, and the interface of the N fire detectors connects the first outlet, wherein N >=1, the fire
Calamity alarm controller is respectively with going line and loop line to be connected, and first inlet wire is with going line electrically to be connected by the first junction box
Connect, first outlet is electrically connected with loop line by the second junction box.
3. nuclear power plant's reactor building fire detecting system according to claim 2, it is characterised in that first inlet wire
With removing terminal block short circuit of the line by the first junction box, first outlet is short by the terminal block of the second junction box with loop line
Connect.
4. nuclear power plant's reactor building fire detecting system according to claim 1 or 2, it is characterised in that described first
Interface the second inlet wire of connection of reserved fire detector, interface the second outlet of connection of N reserved fire detectors, wherein N >=
1；When the fire detector breaks down, the first reserved fire detector carries out electricity with going line to pass through the first junction box
Property connection, the N fire detectors are connected with loop line by the second junction box to be electrically connected with.
5. nuclear power plant's reactor building fire detecting system according to claim 4, it is characterised in that visited in the fire
When survey device breaks down, second inlet wire is with removing terminal block short circuit of the line by the first junction box, and second outlet is with returning
The terminal block short circuit that line passes through the second junction box.
6. nuclear power plant's reactor building fire detecting system according to claim 1, it is characterised in that the detection
Device and the reserved fire detector are point type fire detector.
7. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are code-shaped fire detector.
8. nuclear power plant's reactor building fire detecting system according to claim 7, it is characterised in that each fire
The geocoding of the reserved fire detector of the geocoding setting adjacent thereto of detector is identical.
9. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are non-coding type fire detector, the non-coding type fire detector and fire
The interface module for being used for recognizing each non-coding type fire detector is provided between alarm controller.
10. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are ion smoke detector.
11. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are optics smoke fire detector.
12. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are line style light beam smoke fire detector.
13. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are flame detector.
14. nuclear power plant's reactor building fire detecting system according to claim 1 or 6, it is characterised in that the fire
Detector and the reserved fire detector are heat fire detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208215.3U CN206451323U (en) | 2016-10-31 | 2016-10-31 | Nuclear power plant's reactor building fire detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208215.3U CN206451323U (en) | 2016-10-31 | 2016-10-31 | Nuclear power plant's reactor building fire detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206451323U true CN206451323U (en) | 2017-08-29 |
Family
ID=59663026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621208215.3U Active CN206451323U (en) | 2016-10-31 | 2016-10-31 | Nuclear power plant's reactor building fire detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206451323U (en) |
Cited By (5)
| 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 |
| CN112133052A (en) * | 2020-09-22 | 2020-12-25 | 岭澳核电有限公司 | Image fire detection method for nuclear power plant |
| CN112530140A (en) * | 2020-12-02 | 2021-03-19 | 中国兵器装备集团自动化研究所 | Joint alarm and pollution area division method based on adjacent position relation of detectors |
| CN116524668A (en) * | 2023-05-11 | 2023-08-01 | 南京航空航天大学 | Machine carries intelligent combined type fire detection device |
| CN116863634A (en) * | 2023-09-04 | 2023-10-10 | 山东广瑞电力科技有限公司 | Fire monitoring and early warning method and system |
-
2016
- 2016-10-31 CN CN201621208215.3U patent/CN206451323U/en active Active
Cited By (6)
| 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 |
| CN112133052A (en) * | 2020-09-22 | 2020-12-25 | 岭澳核电有限公司 | Image fire detection method for nuclear power plant |
| CN112530140A (en) * | 2020-12-02 | 2021-03-19 | 中国兵器装备集团自动化研究所 | Joint alarm and pollution area division method based on adjacent position relation of detectors |
| CN112530140B (en) * | 2020-12-02 | 2022-05-13 | 中国兵器装备集团自动化研究所 | Joint alarm and pollution area division method based on adjacent position relation of detectors |
| CN116524668A (en) * | 2023-05-11 | 2023-08-01 | 南京航空航天大学 | Machine carries intelligent combined type fire detection device |
| CN116863634A (en) * | 2023-09-04 | 2023-10-10 | 山东广瑞电力科技有限公司 | Fire monitoring and early warning method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206451323U (en) | Nuclear power plant's reactor building fire detecting system | |
| CN207938972U (en) | A kind of intelligent monitor system applied to box-type substation | |
| CN110170137A (en) | A kind of wisdom fire-fighting management system and management method with escape route | |
| CN209343489U (en) | A kind of fire alarm system | |
| CN114839555A (en) | Early warning method and device for battery energy storage system, electronic equipment and storage medium | |
| CN110335436A (en) | A kind of substation cable fireproof monitoring system and its method | |
| CN110201330A (en) | A kind of water fire fighting system and its control method for high pressure direct screening battery energy storage | |
| CN106600880A (en) | Wireless transmission independent type smoke-sensing and temperature-sensing compound fire detection and alarm system | |
| CN105957293A (en) | Fire monitoring method and system for containment vessel of nuclear power station during bulge test | |
| CN105389965A (en) | Urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors | |
| CN112686399B (en) | Distribution room fire emergency repair method and system based on augmented reality technology | |
| CN206147907U (en) | Wireless combustible gas monitoring system based on WIFI | |
| CN112947268A (en) | Power battery test safety protection system, method and monitoring system | |
| CN209343488U (en) | A kind of fire alarm system | |
| CN217548826U (en) | Integrated oil mist purification system | |
| CN103177536B (en) | Gas detecting and alarming system and controlling method thereof for annular shaft kiln | |
| CN113362547B (en) | Safety reminding method in working of substation equipment | |
| CN116189370A (en) | Graded processing method for early warning information of fire-fighting equipment of transformer substation | |
| CN109876333A (en) | A kind of intelligent substation's arc-detection, explosion suppression system and method | |
| CN209591025U (en) | A kind of fire alarm system | |
| CN212752303U (en) | Wisdom power consumption monitoring and early warning system based on thing networking and wired network deployment | |
| CN210837202U (en) | Safety system of nuclear power plant | |
| Monamy et al. | Why do accidents happen? A content analysis of safety (CAP) reports | |
| CN209373777U (en) | Fire prevention safeguard structure with active long-range fire behavior early warning | |
| CN202916946U (en) | Boat automatic fire alarm system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |