CN203861829U - Special fire fighting warning device for disaster recovery system - Google Patents
Special fire fighting warning device for disaster recovery system Download PDFInfo
- Publication number
- CN203861829U CN203861829U CN201420241196.9U CN201420241196U CN203861829U CN 203861829 U CN203861829 U CN 203861829U CN 201420241196 U CN201420241196 U CN 201420241196U CN 203861829 U CN203861829 U CN 203861829U
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- Prior art keywords
- fire
- disaster recovery
- fire fighting
- shower nozzle
- nozzle
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- Expired - Lifetime
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- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 239000000779 smoke Substances 0.000 claims abstract description 62
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 4
- 230000007257 malfunction Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910001868 water Inorganic materials 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a special fire fighting warning device for a disaster recovery system. The disaster recovery system comprises a machine room used for mounting control cabinets, wherein the fire fighting warning device is arranged in the machine room; the fire fighting warning device comprises a fire fighting pipeline allowing a fire extinguishing media to flow therein; rotatable nozzles for spraying the fire extinguishing media are arranged on the fire fighting pipeline; the nozzles are connected with the fire fighting pipeline through switch valves used for controlling the make-and-break flowing of the fire extinguishing media; at least one smoke sensor is arranged in each of the at least three directions of the machine room; the smoke sensors are electrically connected with the switch valves used for controlling the make-and-break of the nozzles respectively. By the partition arrangement inside the machine room, the smoke sensor is arranged in each partition respectively to control whether the nozzle in the partition sprays the fire extinguishing media or not, so as to realize the refined fire extinguishing function of the partitions and avoid the malfunction condition of the control cabinets caused by mistaken spraying of the fire extinguishing media in the control cabinets in areas without naked fire; the fire fighting warning device is simple in structure, remarkable in effect and suitable for popularization and application.
Description
Technical field
The utility model relates to power equipment, relates in particular to a kind of fire fighting alarm device of disaster recovery and backup systems special use.
Background technology
At present, each group company generally divides into a capital company, so that the fund of group internal is carried out to Centralized Operation, supervision.Centralized Operation by fund has been created considerable economic well-being of workers and staff to group, yet, along with concentrating of fund, whole group capital safety is also faced with concentrating of risk, natural calamity, loss of data, system break, assault, on the impact of capital company's Financial Information platform, will be all great, or even be difficult to make up.
Disaster recovery and backup systems are built, and are " the ultimate defence lines " of constructing capital company's Financial information safety.By setting up disaster backup system, can fully guarantee the Information Security for security incident a situation arises lower group capital various and natural calamity and people, realize the continuity of company's fund business.At present, build disaster recovery and backup systems construction and become the fundamental construction that each financial institution ensures its information security.The Banking Supervision Commission and BRC explicitly point out importance and the necessity that disaster recovery and backup systems are built in associated documents.
System disaster tolerance redundancy technique refers to by setting up teledata backup center, main centre data is copied to backup center real-time or non real-time.Under normal circumstances, the various application of system operate in the computer system at main center, and data leave in the storage system of main center and backup center simultaneously.A series of related measures, because power-off, fire are when even the disaster such as earthquake cannot be worked, are taked immediately in Dang Zhu center, network, data circuit are switched to backup center, and utilize backup center computer system to restart application system.Here the problem of most critical is exactly handoff procedure shortest time, keeps as far as possible continuity and the integrality of main center and backup center data simultaneously.The data backup and resume that how to solve main center and backup center database is the emphasis of disaster-tolerant backup scheme.
Because the workload of disaster recovery and backup systems is very large, so the various devices such as control rack of purchasing are also a lot, need special machine room to come keeping to deposit, the various fire-fighting protections of machine room are also just very important.
Meanwhile, the shower nozzle for fire-fighting system of commonly using is in the market by three kinds: the first is ability of swimming shower nozzle; The second is gas tip; The third is gas mixing type water shower nozzle.Although the application of the first ability of swimming shower nozzle is very wide, and structure is also very simple, but after one section of breaking out of fire, water can affect to environment, and range of application is also more limited, the second gas tip is many a kind of products of applying at present, its feature is to be widely used in office building, in fire extinguishing or fire prevention system that market etc. are relatively sealed, and structure is also very simple, effect might as well, but effect is not just too desirable for the fire extinguishing system of some Code in Hazardous Special Locations, and should also know one section not thorough because putting out a fire for the first time, spot fire is even more serious, the third gas mixing type water shower nozzle, it is the mode of having utilized the pressure differential of water and nitrogen, and water and nitrogen mixing jetting are out put out a fire, and fire extinguishing better effects if, is also a kind of novel fire-fighting mode in all fire extinguishing systems on the market,
But more existing so hybrid shower nozzles, although adopted a kind of like this mode to go design, the effect of putting out a fire is general, and real during for some soft large fire, can not guarantee fire to extinguish completely, structure is also very complicated simultaneously, safeguard also inconvenience, and price is also very high.
In view of this, special the utility model that proposes.
Utility model content
The purpose of this utility model is to provide a kind of fire fighting alarm device of disaster recovery and backup systems special use, and the object of safe, reliable, stable fire protection alarm system is provided to realize disaster recovery and backup systems.
For realizing utility model object, adopt following technical scheme:
A fire fighting alarm device for disaster recovery and backup systems special use, described disaster recovery and backup systems comprise the machine room of installing for controlling rack, described fire fighting alarm device is located in machine room; Described fire fighting alarm device comprises the fire main that supplies fire-fighting media flow, and fire main is provided with that spray, rotatable shower nozzle 40 for fire-fighting medium, and described shower nozzle 40 is connected with fire main through controlling the switch valve 3 of the mobile break-make of firing-fighting medium; In at least three directions of described machine room, each at least arranges a Smoke Sensor 6 respectively; Each Smoke Sensor 6 is electrically connected with the switch valve 3 of controlling shower nozzle break-make respectively.
Further, relatively machine room center is uniform arranges a plurality of Smoke Sensors 6.
Further, at a distance of each Smoke Sensor 6 certain distance L, one group of shower nozzle 40 is set respectively.
Further, every group of shower nozzle 40 comprises the relatively corresponding symmetrical a plurality of shower nozzles 40 of Smoke Sensor 6; Each shower nozzle 40 shares a switch valve 3 of controlling the mobile break-make of firing-fighting medium, and described switch valve 3 is electrically connected with corresponding Smoke Sensor 6.
Further, described distance L is the range that shower nozzle 40 sprays firing-fighting medium.
The range L of the sprinkling firing-fighting medium that further, the spacing of adjacent Smoke Sensor 6 is twice.
Further, described shower nozzle 40 forms body by sleeve pipe, and described sleeve pipe is formed by the outer tube 1 being set with and inner tube 2; Inner tube 2 is inner to be formed for the mobile path of gaseous state firing-fighting medium, and 2 formations of outer tube 1 and inner tube are for the mobile path of liquid firing-fighting medium.
Further, the bottom of sleeve pipe is connected with nozzle 4; Described nozzle 4 is provided with the first spray orifice 41 being connected with liquid firing-fighting medium path near outer circumferential side, described nozzle 4 is provided with the second spray orifice 42 being connected with gaseous state firing-fighting medium path near central side.
Further, described nozzle 4 is connected with the stepper motor 5 that drives nozzle 4 to rotate.
Further, described nozzle 4 centers are provided with second spray orifice 42; Nozzle 4 peripheries are evenly equipped with a plurality of the first spray orifices 41.
Adopt technique scheme, the utility model is compared with the advantage of prior art:
Machine room fire-fighting system of the present utility model is surveyed the fire condition in machine room in real time by Smoke Sensor, once the condition of a disaster of having detected, autoalarm can be reported to the police at once, and fire-smothering gear will spray the G&W processing of putting out a fire, and fire can be controlled and eliminate.
Simultaneously, machine room internal zone dividing is arranged, the shower nozzle that one Smoke Sensor controls in this district is set respectively in each subregion and whether sprays firing-fighting medium, to realize the become more meticulous function of fire-fighting fire extinguishing of subregion, avoid not producing the generation that rack firing-fighting medium in naked light region sprays by mistake, causes controlling rack situation in season.
More particularly, the inner tube of shower nozzle can be connected with outside nitrogen pipe network, outer tube can be connected with outside water supply network, air feed and water supply simultaneously, form complete two-phase flow shower nozzle, and the second spray orifice of nozzle the inside can disperse the water of water nozzle ejection, disperse the rear nitrogen pressure spraying in the first spray orifice that utilizes water nitrogen mixture is carried out to atomization, not only improved the usefulness of fire extinguishing, and installed simple, easy to maintenance.
The utility model is simple in structure, and effect is remarkable, suitable promoting the use of.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model;
Fig. 2 preferred structure schematic diagram of the present utility model;
The installation site schematic diagram of machine room top shower nozzle and Smoke Sensor in Fig. 3 the utility model;
The structural representation of shower nozzle in Fig. 4 the utility model;
The upward view of nozzle in Fig. 5 the utility model.
Main element explanation: 1-outer tube, 2-inner tube, 3-switch valve, 4-nozzle, 5-stepper motor, 6-Smoke Sensor, 7-control circuit board; 31-control motor, the 32-the first valve body, the 33-the second valve body; The 301-the first switch valve, 302-second switch valve, the 303-the three switch valve, the 304-the four switch valve; The 41-the first spray orifice, the 42-the second spray orifice; 51-revoling tube; The 61-the first Smoke Sensor, the 62-the second Smoke Sensor, the 63-the three Smoke Sensor, the 64-the four Smoke Sensor; 40-shower nozzle, the 401-the first shower nozzle, the 402-the second shower nozzle, the 403-the three shower nozzle, the 404-the four shower nozzle.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in more detail.
As shown in Figure 1, a kind of fire fighting alarm device of disaster recovery and backup systems special use, described disaster recovery and backup systems comprise the machine room of installing for controlling rack, described fire fighting alarm device is located in machine room; Described fire fighting alarm device comprises the fire main that supplies fire-fighting media flow, and fire main is provided with that spray, rotatable shower nozzle 40 for fire-fighting medium, and described shower nozzle 40 is connected with fire main through controlling the switch valve 3 of the mobile break-make of firing-fighting medium; In at least three directions of described machine room, each at least arranges a Smoke Sensor 6 respectively; Each Smoke Sensor 6 is electrically connected through control circuit board 7 and the switch valve 3 of controlling shower nozzle break-make respectively.Described disaster recovery and backup systems comprise the machine room of installing for controlling rack, and described fire fighting alarm device is located in machine room.
The smog value detecting in machine room when an arbitrary Smoke Sensor reaches after setting value, to control circuit board, send information, control circuit board sends signal to switch valve, controls shower nozzle and starts in machine room, to spray fire-fighting medium, with the naked light in machine room, puts out.
Embodiment mono-
In the present embodiment, on the ceiling at machine room top, relatively machine room center is uniform is provided with a plurality of Smoke Sensors 6; Preferably, each Smoke Sensor 6 is the rectangular arrangement of arranging in length and breadth; Further preferred, as shown in Figure 3, on ceiling, be placed with two row two row Smoke Sensors 6, be respectively the first Smoke Sensor 61, the second Smoke Sensor 62, the 3rd Smoke Sensor 63 and the 4th Smoke Sensor 64.In the present embodiment, can also be long-pending according to the controller cabinet of disaster recovery and backup systems, the machine room of the size that matches with it is set, to arrange and the match Smoke Sensor 6 of quantity of machine room.
In the present embodiment, at a distance of each Smoke Sensor 6 certain distance L, one group of shower nozzle 40 is set respectively, every group of shower nozzle 40 comprises a plurality of shower nozzles 40 of the symmetrical setting of a plurality of relatively corresponding Smoke Sensor; Preferably, on the uniform circumference that to be arranged on apart from the distance of Smoke Sensor 6 be L of each shower nozzle 40; Further preferred, as shown in Figure 3, each Smoke Sensor 6 is evenly equipped with respectively six shower nozzles 40 around, and each shower nozzle 40 is the range that shower nozzle 40 sprays firing-fighting medium at a distance of the distance L of corresponding Smoke Sensor 6, for example: the first Smoke Sensor 61 is evenly equipped with six the first shower nozzles 401 around.In the present embodiment, can also, according to the range of shower nozzle 40, the shower nozzle 40 of varying number be set in each Smoke Sensor 6 place's correspondence.
Embodiment bis-
In the present embodiment, every group of shower nozzle 40 comprises a plurality of shower nozzles 40 that relative Smoke Sensor is symmetrical; Each shower nozzle 40 shares a switch valve 3 of controlling the mobile break-make of firing-fighting medium, and described switch valve 3 is electrically connected with corresponding Smoke Sensor 6.Preferably, the connection that is in series successively by the road of each shower nozzle 40 of every group, and be connected with fire main through switch valve 3.For example, each first shower nozzle 401 that the first Smoke Sensor 61 around arranges shares the first switch valve 301, to control the working condition of each first shower nozzle 401; Each second shower nozzle 402 that the second Smoke Sensor 62 around arranges shares second switch valve 302, to control the working condition of each second shower nozzle 402; Each the 3rd shower nozzle 403 that the 3rd Smoke Sensor 63 around arranges shares the 3rd switch valve 303, to control the working condition of each the 3rd shower nozzle 403; Each the 4th shower nozzle 404 that the 4th Smoke Sensor 64 around arranges shares the 4th switch valve 304, to control the working condition of each the 4th shower nozzle 404.
As shown in Figure 3, in the present embodiment, be each Smoke Sensor 6 that matrix is arranged in length and breadth, the shower nozzle 40 that wherein spacing of adjacent Smoke Sensor 6 is twice sprays the range L of firing-fighting medium.
In the present embodiment, the shower nozzle 40 of 6 settings of adjacent Smoke Sensor is the shared shower nozzles 40 of two Smoke Sensors 6, makes this shared shower nozzle 40 of switch valve 3 actings in conjunction of two adjacent Smoke Sensor 6 correspondences.
In the present embodiment, shared shower nozzle is connected with threeway, and described threeway is connected with fire main through the switch valve of two corresponding Smoke Sensors respectively.For example, two shower nozzles that arrange between the first Smoke Sensor and the second Smoke Sensor, are the first shower nozzle and the second shower nozzle, so it is the shared shower nozzle between the first Smoke Sensor and the second Smoke Sensor; Described shower nozzle is communicated with respectively with triplate line, and described triplate line one end the first switch valve is connected with fire main, the other end is connected with fire main through second switch valve; The first described switch valve is and the first switch valve Smoke Sensor interlock, that control corresponding group of shower nozzle break-make that described second switch valve is and the second switch valve Smoke Sensor interlock, that control corresponding group of shower nozzle break-make (not embodying in the accompanying drawings).
Embodiment tri-
As shown in Figure 4, in the present embodiment, described shower nozzle forms body by sleeve pipe, and described sleeve pipe is formed by the outer tube 1 being set with and inner tube 2; Inner tube 2 is inner to be formed for the mobile path of gaseous state firing-fighting medium, and 2 formations of outer tube 1 and inner tube are for the mobile path of liquid firing-fighting medium.The bottom of sleeve pipe is connected with nozzle 4; Described nozzle 4 is provided with the first spray orifice 41 being connected with liquid firing-fighting medium path near outer circumferential side, described nozzle 4 is provided with the second spray orifice 42 being connected with gaseous state firing-fighting medium path near central side.
Described nozzle 4 is connected with the stepper motor 5 that drives nozzle to rotate, and described stepper motor 5 is connected with control circuit board 7.When control circuit board 7 receives after the signal that Smoke Sensor 6 sends, control step motor 5 starts rotation with certain frequency, to drive nozzle 4 rotations, firing-fighting medium is sprayed in machine room uniformly.
As shown in Figure 5, in the present embodiment, described nozzle 4 centers are provided with second spray orifice 42; Nozzle 4 peripheries are evenly equipped with a plurality of the first spray orifices 41, preferred, uniform 10 the first spray orifices 41 are set, and described nozzle hole number can increase or reduce according to actual needs.In the present embodiment, the second described spray orifice 42 is the vertical through hole that axis arranges along casing axis, so that gaseous state firing-fighting medium is directly sprayed in machine room, the naked light of shower nozzle below is puted out a fire to save life and property; The first described spray orifice 41 consists of the outward-dipping inclined via-hole of nozzle center from top to bottom gradually for axis, so that liquid firing-fighting medium is with being outwards evenly injected in machine room in nozzle rotation process; Preferably, from top to bottom narrow gradually in the aperture of described the first spray orifice 41, so that the liquid firing-fighting medium of ejection is atomized state, is sprayed in machine room.
In the present embodiment, described sleeve pipe top is provided with switch valve 3, and described switch valve 3 comprises the control motor 31 on fixing and outer tube outer wall; Described control motor 31 is provided with Control Shaft, and described Control Shaft through the sidewall of outer tube 1 and inner tube 2, is provided with the second valve body 33, to control the mobile break-make of gaseous state firing-fighting medium successively on the Control Shaft that stretches into inner tube 1 hollow bulb; On the Control Shaft stretching between inner tube 2 and outer tube 1, be provided with the first valve body 32, to control the mobile break-make of liquid firing-fighting medium.Described control motor 31 is electrically connected with control circuit board 7, to control the working condition of revolving the first valve body and the second valve body, realizes the object of the break-make of controlling liquid and gaseous state firing-fighting medium path.
In the present embodiment, the sleeve pipe that described fire main is also comprised of inside and outside jaw elements forms, and described internal layer fire main is connected with inner tube 2, for gaseous state firing-fighting medium, flows; Described outer fire main is connected with outer tube 1, for liquid firing-fighting medium, flows.
In the present embodiment, described sleeve pipe bottom is provided with stepper motor 5, and described stepper motor 5 is fixed on the outer wall of outer tube 1, and stepper motor 5 downsides extend connection with revoling tube 51, and described revoling tube 51 bottoms connect and fix and are connected mutually with nozzle 4 upper ends.Thereby, make stepper motor drive nozzle rotation through revoling tube, realized the object that nozzle rotation is sprayed.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design philosophy; the various changes and modifications that in this area, professional and technical personnel makes the technical solution of the utility model, all belong to protection domain of the present utility model.
Claims (10)
1. a fire fighting alarm device for disaster recovery and backup systems special use, described disaster recovery and backup systems comprise the machine room of installing for controlling rack, described fire fighting alarm device is located in machine room;
It is characterized in that: described fire fighting alarm device comprises the fire main for fire-fighting media flow, fire main is provided with and supplies fire-fighting medium sprays, rotatable shower nozzle (40), and described shower nozzle (40) is connected with fire main through controlling the switch valve (3) of the mobile break-make of firing-fighting medium;
In at least three directions of described machine room, each at least arranges a Smoke Sensor (6) respectively;
Each Smoke Sensor (6) is electrically connected with the switch valve (3) of controlling shower nozzle break-make respectively.
2. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 1, is characterized in that, relatively the uniform a plurality of Smoke Sensors (6) that arrange in machine room center.
3. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 2, is characterized in that, at a distance of each Smoke Sensor (6) certain distance L, one group of shower nozzle (40) is set respectively.
4. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 3, is characterized in that, every group of shower nozzle (40) comprises the relatively corresponding symmetrical a plurality of shower nozzles (40) of Smoke Sensor (6);
Each shower nozzle (40) shares a switch valve (3) of controlling the mobile break-make of firing-fighting medium, and described switch valve (3) is electrically connected with corresponding Smoke Sensor (6).
5. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 3, is characterized in that, described distance L is the range that shower nozzle (40) sprays firing-fighting medium.
6. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 5, is characterized in that, the range L of the sprinkling firing-fighting medium that the spacing of adjacent Smoke Sensor (6) is twice.
7. according to the fire fighting alarm device of the arbitrary described a kind of disaster recovery and backup systems special use of claim 1 to 6, it is characterized in that, described shower nozzle (40) forms body by sleeve pipe, and described sleeve pipe is formed by the outer tube being set with (1) and inner tube (2);
Inner tube (2) is inner to be formed for the mobile path of gaseous state firing-fighting medium, between outer tube (1) and inner tube (2), forms for the mobile path of liquid firing-fighting medium.
8. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 7, is characterized in that, the bottom of sleeve pipe is connected with nozzle (4);
Described nozzle (4) is provided with near outer circumferential side the first spray orifice (41) being connected with liquid firing-fighting medium path, and described nozzle (4) is provided with near central side the second spray orifice (42) being connected with gaseous state firing-fighting medium path.
9. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 8, is characterized in that, described nozzle (4) is connected with the stepper motor (5) that drives nozzle (4) to rotate.
10. the fire fighting alarm device of a kind of disaster recovery and backup systems special use according to claim 8, is characterized in that, described nozzle (4) center is provided with second spray orifice (42); Nozzle (4) periphery is evenly equipped with a plurality of the first spray orifices (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241196.9U CN203861829U (en) | 2014-05-12 | 2014-05-12 | Special fire fighting warning device for disaster recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241196.9U CN203861829U (en) | 2014-05-12 | 2014-05-12 | Special fire fighting warning device for disaster recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203861829U true CN203861829U (en) | 2014-10-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241196.9U Expired - Lifetime CN203861829U (en) | 2014-05-12 | 2014-05-12 | Special fire fighting warning device for disaster recovery system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203861829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790089A (en) * | 2020-06-22 | 2020-10-20 | 国网安徽省电力有限公司电力科学研究院 | Fire extinguishing system and method for in-operation extra-high voltage converter station and in-operation extra-high voltage converter station |
-
2014
- 2014-05-12 CN CN201420241196.9U patent/CN203861829U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790089A (en) * | 2020-06-22 | 2020-10-20 | 国网安徽省电力有限公司电力科学研究院 | Fire extinguishing system and method for in-operation extra-high voltage converter station and in-operation extra-high voltage converter station |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |