CN104190023A - Nitrogen-driving dry powder extinguishing system with image monitoring and remote control functions - Google Patents
Nitrogen-driving dry powder extinguishing system with image monitoring and remote control functions Download PDFInfo
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- CN104190023A CN104190023A CN201410487253.6A CN201410487253A CN104190023A CN 104190023 A CN104190023 A CN 104190023A CN 201410487253 A CN201410487253 A CN 201410487253A CN 104190023 A CN104190023 A CN 104190023A
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- dry powder
- nitrogen
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Abstract
The invention discloses a nitrogen-driving dry powder extinguishing system with image monitoring and remote control functions. The system is provided with a plurality of power cylinder groups formed by high-pressure nitrogen cylinders, a dry powder storage tank communicated with the power cylinder groups through pipelines as well as a sprayer arranged in a target area, wherein a plurality of spraying holes are formed in the bottom inside the dry powder storage tank and communicated with the power cylinder groups outside the tank through internal pipelines; during working, the power cylinder groups are started, and leading-out nitrogen enters the storage tank, is sprayed out from the spraying holes and enters the sprayer in the target area through a gas outlet pipeline with dry powder; and during working, high-pressure gas is blown out from the position below settled dry powder or from inside of the dry powder, and the settled dry powder is dispersed by high-speed sprayed gas, so that the storage tank can be rapidly and uniformly filled with the dry powder, the dry powder is mixed with gas to form dry powder smoke, and the dry powder smoke enters the target area through the pipelines under the push of gas later continuously entering the storage tank.
Description
Technical field
The present invention relates to a kind of powder extinguishing system of nitrogen as driving force of usining.Relate to Patent classificating number A62 lifesaving; The device A 62C35/02 of the permanent installation of fire-fighting A62C fire-fighting A62C35/00 has conveying extinguishing material container.
Background technology
Nitrogen, as the fire extinguishing system of power, has toggle speed fast, does not rely on the advantages such as external power supply, and its scope of application is more and more wider.This type of fire extinguishing system is all to using liquid foam as extinguishing chemical, by nitrogen injection in storage tank, improves storage tank internal gas pressure, by air pressure, liquid foam is extruded to storage tank and by pipeline, is sent to the region of appointment.
But the accommodation of fire foam is limited, to the fire of particular types to put out effect unsatisfactory, and owing to being liquid foam, so should not put out the fire of document category, can only use traditional dry-chemical fire extinguishing.
But dry powder is owing to being pressed powder, and when long-time storage, character easily changes, and especially the larger dry powder of granularity, is more easily deposited on tank bottom, easily stops up the externally pipeline of output.And due to be gas as power, cannot form stable gas phase and liquid interface, the liquid of the monolithic extruded tank body of gas pressure below that can not be by tank body top.
Summary of the invention
The present invention is directed to dry powder and store for a long time the problem of caking blocking pipeline, and a kind of nitrogen with picture control and Long-distance Control of development drives powder extinguishing system, have: the power bottle group that a plurality of high-pressure nitrogen bottles form,, the dry powder storage tank being communicated with power bottle group by pipeline and the shower nozzle that is arranged on target area.Bottom in described dry powder storage tank is provided with a plurality of spray-holes, and described spray-hole is communicated with the power bottle group of tank body outside by interior pipeline; During work, power bottle group starts, and the nitrogen of drawing enters storage tank, by spray-hole, is sprayed, and carries dry powder and by outlet pipe, arrives the shower nozzle of target area.
During work, gases at high pressure blow out from the dry powder below (inside) of deposition, the gas of ejection dispels the dry powder of deposition at a high speed, make dry powder can be full of rapidly and uniformly storage tank, be mixed to form dry powder smog with gas, dry powder smog under the promotion of the follow-up gas that constantly enters storage tank by pipeline target approach region.
As preferred embodiment, at the bottom of described interior pipeline comprises and approaches tank, the transverse tube parallel with tank body central axis; The vertical tube being communicated with transverse tube; Described a plurality of spray-holes are arranged on the top of transverse tube.Under store status, transverse tube and spray-hole are covered by dry powder.Owing to being arranged on tank base, dispel the efficiency of depositing dry powder higher than other set-up mode.
Further, in order further to accelerate to dispel the speed of depositing dry powder, make dry powder within the shortest time, be full of whole storage tank, as preferred embodiment, have the arm that a plurality of and described transverse tube is connected, the upper end of described arm has a plurality of spray-holes.By at the bottom of tank
Further, consider the cylinder form of tank body, the below of horizontally disposed transverse tube and arm has larger blind area, therefore highly preferred embodiment, described a plurality of arms have the radian matching with inner wall shape at the bottom of tank, and arm is bend pipe.Such mounting means, transverse tube and arm can be pressed close at the bottom of tank to arrange, eliminated blind area, have increased the speed that dry powder is full of tank body, have increased equally distributed efficiency.
As another preferred embodiment, below interior pipeline, be provided with a plurality of fans, when injecting gas in tank body, a plurality of fan rotations, dry powder is kicked up to tank body top, can within the extremely short time, be made dry powder be full of uniformly whole tank body, reduced SRT.
Further, in order to produce dry powder turbulent flow at tank body, to increase the uniformity of tank interior dry powder blend, as preferred embodiment, the direction of rotation of two adjacent fans is contrary, compared to the consistent a plurality of fans of direction of rotation, it is shorter that dry powder is full of the time in whole tank body space uniformly.
Further, described transverse tube below is provided with playpipe (substituting aforesaid spray-hole), and the gases at high pressure of being exported by playpipe are directly blown into the rotary area of fan, have further increased the diffusion velocity of dry powder and the uniformity of distribution.(if the in-position of gas separates with fan area, can in gas vent region, cause dry powder density obviously to reduce, and has reduced the uniformity that dry powder distributes)
Further, as preferred embodiment, the described direction of playpipe Exhaust Gas and the direction of rotation of fan are tangent or consistent.The gas of ejection forms spiralling air-flow under the drive of fan.Increased the efficiency of the gas flow of tank body, the more dry powder of portability in shorter time.And because the direction of rotation of adjacent fan is different, the direction of rotation of adjacent two strands of ascending airs (dry powder smog) is not identical yet, the dry powder of adjacent two spiral air flows more easily mixes, and has increased at short notice the efficiency that dry powder is full of storage tank.
As another preferred embodiment, described interior pipeline below is provided with a plurality of unpowered fans; Each unpowered fan is furnished with the playpipe that the described unpowered fan of a driving rotates; During work, playpipe sprays at a high speed nitrogen, and described nitrogen drives unpowered fan rotation, stirs the dry powder of deposition.
Dry powder in storage tank deposits for a long time, the dry powder piece that inevitably can produce larger particles degree, especially the stream pressure in storage tank is larger, relies on merely air-flow in tank body dry powder can not be smashed soon completely at short notice, cause dry powder by pipeline, to enter into shower nozzle soon, cause shower nozzle to stop up.
Pretending is a preferably embodiment, and described shower nozzle has an inner chamber, and described inner chamber comprises the straight length with described pipeline connection; Be positioned at the stop part I in straight length the place ahead, this stop part has bottom surface and around the inclined lateral side of this bottom surface, the bearing of trend of this inclined lateral side is provided with stop part II.The dry powder of introducing shower nozzle by straight length is high speed impact stop part I first, smashes dry powder fast; Dry powder after smashing is discharged along the inclined lateral side of stop part I periphery, impacts stop part II under the guiding of side, completes secondary and smashes, last, and dry powder is along the edge ejection of stop part II.Due to what exist, smash process 2 times, can guarantee that dry powder soon can be by sufficient fragmentation, guaranteed the unimpeded of shower nozzle in course of injection.
Described powder extinguishing system also comprises: a plurality of perception target area environment temperature, upload in real time the temperature sensor of temperature detection signal; And receive the temperature signal that described temperature sensor is uploaded, when temperature surpasses threshold value, control the fire-fighting main control system of described fire extinguishing system startup work;
Also have video monitoring system, this system comprises: be arranged on transformer station a plurality of cameras, with camera communication connection, collect the video frequency collection card of described each camera collection video image;
Described fire-fighting main control system and video frequency collection card communicate to connect by access device and described remote server.
Accompanying drawing explanation
Technical scheme for clearer explanation embodiments of the invention or prior art, by the accompanying drawing of required use in embodiment or description of the Prior Art being done to one, introduce simply below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of shower nozzle of the present invention
Fig. 2 is the A-A schematic cross-section of shower nozzle of the present invention
Fig. 3 is the B-B schematic cross-section of shower nozzle of the present invention
Fig. 4 is the schematic diagram of the embodiment of the present invention 1 storage tank
Fig. 5 is the top view of the embodiment of the present invention 1 storage tank
Fig. 6 is the side view A of the embodiment of the present invention 1 storage tank
Fig. 7 is the side view B of the embodiment of the present invention 2 storage tanks
Fig. 8 is the schematic diagram of the embodiment of the present invention 3 storage tanks
Fig. 9 is the top view of the embodiment of the present invention 3 storage tanks
Figure 10 is the side view of the embodiment of the present invention 3 storage tanks
Figure 11 is system architecture diagram of the present invention
The specific embodiment
For making object, technical scheme and the advantage of embodiments of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is known to complete description:
Embodiment 1, as Figure 4-Figure 6: storage tank 2 comprises the columniform tank body in middle part, and global approximation is capsule shape.Above storage tank 2, be provided with the necessary instrument such as Pressure gauge.At the upper opening of storage tank 2 and introduce a vertical tube 21, this vertical tube 21 be arranged on outside a plurality of nitrogen power bottle groups and be communicated with, in tank body, introduce nitrogen.
The bottom of described vertical tube 21 is also connected with a transverse tube 22, and this transverse tube 22, near the bottom of storage tank 2, is horizontally disposed with, and is threaded by elbow with vertical tube 21.In the both sides of transverse tube 22, be provided with a plurality of horizontally disposed arms 24 that are similarly.Two STHs at transverse tube 22 arrange the fixing described a plurality of arms 24 of connector.At the upper surface of arm 24 and transverse tube 22, be provided with the spray-hole 25 of a plurality of spaced sets.When dry powder is deposited on storage tank 2 bottom, dry powder covers arm 24 and transverse tube 22.When spray-hole 25 exhaust, can make the dry powder of deposition be full of whole storage tank 2.
Embodiment 2, as shown in Figure 7: the overall structure of the tank body 2 of the present embodiment and embodiment's 1 is similar, difference only on arm 24, arm 24 be shaped as arc, consistent with the radian of storage tank 2 bottoms.With respect to the mode in embodiment 1, transverse tube 22 and arm 24 more approach the bottom of storage tank 2, and the position of spray-hole 25 is lower, dispels the better effects if of depositing dry powder, and blind area also still less.
Embodiment 3, as shown in Figure 8: the inside of storage tank 2 is provided with vertical tube 21 equally, the front end of vertical tube 21 is connected with transverse tube 22 by 90 ° of elbows, is provided with four fans 26 that adapt with transverse tube length below transverse tube 22, described transverse tube 22 be with storage tank 2 axis under.Also be provided with the playpipe 27 arranging in groups with fan 26, playpipe 27 is for introducing high pressure nitrogen.The direction of rotation of two adjacent fans 26 is contrary.
During work, the generation of described fan 26 air-flow straight up, drive the dry powder of deposition to tank body tip motions, because fan 26 is all arranged on the below of storage tank 26 axis, and the airflow direction producing straight up, when carrying the air-flow of dry powder and arrive storage tank 2 top, be subject to the impact of storage tank 2 circular cross-sections, described air-flow can be divided into two strands of air-flows, and moves downward at the bottom of tank along the sidewall of storage tank 2, and the air-flow again being produced by fan 26 holds up.The fan 26 arranging, when breaing up fast the dry powder piece of deposition, can form the air-flow of circulation in tank body, can in a short period of time, guarantee the uniformity that in tank body, dry powder distributes.
In addition, the difference of adjacent fans 26 direction of rotation, also cause the air-flow that carries dry powder just very easily in connected air-flow, to act on mutually turbulization in uphill process, increase the exchange of dry powder, increase the fast probability of collision mutually of larger dry powder, guarantee the granularity of dry powder, can, within the shorter time, make dry powder be full of whole storage tank 2 simultaneously.
Shower nozzle 1 as shown in the front view of Fig. 1, front comprises that the opening of 15, four arcuate sockets 15 in hole of 4 arcs is larger, the approximate circumferential apertures that forms.As shown in Figures 2 and 3: shower nozzle 1 comprises straight length 11, for introducing the air-flow that carries dry powder particle and the circular arc runner that is communicated with straight length 11 and hole 15, in the dead ahead of straight length 11, be provided with a stop part I, the middle part of this stop part I is the end 12 of a sub-circular, the surrounding at this end is the edge 13 with certain gradient, high velocity air is impacting rear 13 diffusions along edge in the end 12, under the guiding at edge 13, gas impacts the sidewall of circular arc runner, one section of circular arc sidewall is stop part II, air-flow pressure arc runner after impact moves on and finally by hole 15, is sprayed.Carry the air-flow of dry powder through 2 collisions with stop part II, can guarantee that dry powder piece is fully smashed, can not cause the obstruction of shower nozzle 1.
Embodiment 4, compare with embodiment 3, difference is only that described fan 26 is for unpowered fan, the gas push that during work, fan 26 is sprayed by playpipe 27 rotates, stir the dry powder of deposition, fan carries out drainage to the high-speed gas of playpipe 27 ejections simultaneously, produce the air-flow on screw, similar with the Air Flow in embodiment 3 tank bodies, with respect to simple a plurality of spray-holes that arrange, can within the shorter time, smash the dry powder that is deposited as piece, make more rapidly dry powder be full of whole tank body simultaneously.
As shown in figure 11: described fire extinguishing system mainly comprises: a plurality of perception substation temperature, the temperature sensor that is the corresponding signal of telecommunication by temperature transition.According to actual conditions, be arranged on each fire-fighting keypoint part of transformer station.
Fire-fighting main control system as fire-fighting system core, this main frame respectively with a plurality of dry powder storage tanks and the communication connection of a plurality of temperature sensor, the temperature signal transmitting according to temperature sensor, to current, whether there is fire to judge, and control dry powder storage tank by the pipeline work work such as put out a fire.
Consider, in the judgement of the condition of a fire, may there is error in fire-fighting main control system, the temperature signal transmitting such as temperature sensor is inaccurate, and then there is false alarm situation, or the order of severity to current fire is underestimated, in the not fire extinguishing with all strength of the budding stage of fire, and then incur loss through delay the best period of fire extinguishing, cause heavy losses.
As an embodiment preferably, the present invention is provided with video monitoring system, mainly comprises: a plurality of cameras of position that are fixedly installed on the important or easy breaking out of fire of transformer station.With camera communication connection, collect the video frequency collection card of described each camera collection video image.
Described fire-fighting main control system and video frequency collection card communicate to connect by access device and described remote server.During work, fire-fighting main control system is after receiving the temperature signal of temperature sensor transmission, when making a response, temperature signal and the instruction measure of taking are uploaded to described remote server, administrative staff, after receiving the signal of uploading, by the camera being connected with this server, observe the on-the-spot condition of a fire, further control fire-fighting main control system, make corresponding fire prevention measure.
Further, consider, real-time video observation site can produce very large network traffics, if with other the total same network of equipment, may cause network blockage, cause the delay of vision signal or fire-fighting control signal, incur loss through delay the best period that fire is processed.Pretending is a preferably embodiment, and described powder extinguishing system is connected with remote server with access device II by separate access device I respectively with video frequency collection card.Accordingly, described remote server is also divided into dfs server and the monitoring server being connected with video monitoring system 2 with fire-fighting system 1.When processing separately signal, take separately fixing network, be independent of each other, guaranteed the real-time of fire-fighting signal and vision signal.
Further, in order to facilitate specific people, long-range, the fire condition of transformer station is carried out to management and control, native system also has client computer, and the client computer with described remote server communication connection is installed.
Further, arranging on the basis of a plurality of client computers, also there is wireless terminal, can receive in real time the important information being transmitted by remote server, facilitate related personnel to understand in real time the situation of fire.
The above; it is only the preferably specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. the nitrogen with picture control and Long-distance Control drives a powder extinguishing system, it is characterized in that having: the power bottle group that a plurality of high-pressure nitrogen bottles form, the dry powder storage tank being communicated with power bottle group by pipeline and the shower nozzle that is arranged on target area;
Bottom in described dry powder storage tank is provided with a plurality of spray-holes, and described spray-hole is communicated with the power bottle group of tank body outside by interior pipeline; During work, power bottle group starts, and the nitrogen of drawing enters storage tank, by spray-hole, is sprayed, and carries dry powder and by outlet pipe, arrives the shower nozzle of target area;
Described powder extinguishing system also comprises: a plurality of perception target area environment temperature, upload in real time the temperature sensor of temperature detection signal; And receive the temperature signal that described temperature sensor is uploaded, when temperature surpasses threshold value, control the fire-fighting main control system of described fire extinguishing system startup work;
Also have video monitoring system, this system comprises: be arranged on transformer station a plurality of cameras, with camera communication connection, collect the video frequency collection card of described each camera collection video image;
Described fire-fighting main control system and video frequency collection card communicate to connect by access device and described remote server.
2. the nitrogen with picture control and Long-distance Control according to claim 1 drives powder extinguishing system, is further characterized in that: at the bottom of described interior pipeline comprises and approaches tank, and the transverse tube parallel with tank body central axis; The vertical tube being communicated with transverse tube; Described a plurality of spray-holes are arranged on the top of transverse tube.
3. the nitrogen with picture control and Long-distance Control according to claim 2 drives powder extinguishing system, is further characterized in that and has the arm that a plurality of and described transverse tube is connected, and the upper end of described arm has a plurality of spray-holes.
4. the nitrogen with picture control and Long-distance Control according to claim 3 drives powder extinguishing system, be further characterized in that described a plurality of arms have match with inner wall shape at the bottom of tank and radian.
5. the nitrogen with picture control and Long-distance Control according to claim 1 drives powder extinguishing system, is further characterized in that described interior pipeline below is provided with a plurality of fans; During work, described a plurality of fans rotations, kick up the dry powder that is deposited in tank body below, tank interior all with distribute, the gases at high pressure that interior pipeline top spray-hole sprays carry dry powder and pass through pipeline target approach region.
6. the nitrogen with picture control and Long-distance Control according to claim 5 drives powder extinguishing system, and the fan direction of rotation that the direction of rotation of a plurality of fans described in being further characterized in that is adjacent is contrary.
7. according to the nitrogen with picture control and Long-distance Control described in claim 5 or 6, drive powder extinguishing system, be further characterized in that and below described transverse tube, be also provided with playpipe.
8. the nitrogen with picture control and Long-distance Control according to claim 7 drives powder extinguishing system, is further characterized in that described playpipe and described fan arrange in groups, and the direction of playpipe ejection gas is consistent with fan direction of rotation.
9. the nitrogen with picture control and Long-distance Control according to claim 1 drives powder extinguishing system, is further characterized in that described interior pipeline below is provided with a plurality of unpowered fans; Each unpowered fan is furnished with the playpipe that the described unpowered fan of a driving rotates; During work, playpipe sprays at a high speed nitrogen, and described nitrogen drives unpowered fan rotation, stirs the dry powder of deposition.
10. the nitrogen with picture control and Long-distance Control according to claim 1 drives powder extinguishing system, is further characterized in that described shower nozzle has an inner chamber, and described inner chamber comprises the straight length with described pipeline connection; Be positioned at the stop part I in straight length the place ahead, this stop part has bottom surface and around the inclined lateral side of this bottom surface, the bearing of trend of this inclined lateral side is provided with stop part II.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410487253.6A CN104190023A (en) | 2014-09-22 | 2014-09-22 | Nitrogen-driving dry powder extinguishing system with image monitoring and remote control functions |
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| CN201410487253.6A CN104190023A (en) | 2014-09-22 | 2014-09-22 | Nitrogen-driving dry powder extinguishing system with image monitoring and remote control functions |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU886911A1 (en) * | 1980-04-09 | 1981-12-07 | Всесоюзный научно-исследовательский институт горноспасательного дела | Powder-type fire extinguisher |
| SU1468547A1 (en) * | 1987-08-17 | 1989-03-30 | Производственное объединение "Новокраматорский машиностроительный завод" | Powder-type fire-fighting installation |
| CN2302817Y (en) * | 1997-08-09 | 1999-01-06 | 梁鑫海 | Horizontal dry-power fire-extinguisher |
| CN2758277Y (en) * | 2004-12-23 | 2006-02-15 | 北京工业大学 | Synchronized power feeding device for laser fast shaping |
| WO2007117168A1 (en) * | 2006-04-07 | 2007-10-18 | Vladimir Ivanovich Seliverstov | Fire-extinguishing gas-dispersed composition, a fire-fighting method and a device for carrying out said method |
| CN102335491A (en) * | 2011-07-27 | 2012-02-01 | 江苏中瑞电保智能装备有限公司 | Pipe network type dry powder fire extinguishing system and method |
| CN102406999A (en) * | 2011-07-27 | 2012-04-11 | 江苏中瑞电保智能装备有限公司 | Pipe network type divisional dry powder fire extinguishing system and method |
| CN102861397A (en) * | 2012-10-11 | 2013-01-09 | 西安新竹防灾救生设备有限公司 | Dry powder extinguishment explosion suppression system of oil tank truck |
| CN102940945A (en) * | 2012-12-07 | 2013-02-27 | 北京北机机电工业有限责任公司 | Gas powder agitating device for fire extinguisher |
| CN203154690U (en) * | 2013-04-11 | 2013-08-28 | 大连东方宇科技开发有限公司 | Fire-fighting remote control system for intelligent substation |
-
2014
- 2014-09-22 CN CN201410487253.6A patent/CN104190023A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU886911A1 (en) * | 1980-04-09 | 1981-12-07 | Всесоюзный научно-исследовательский институт горноспасательного дела | Powder-type fire extinguisher |
| SU1468547A1 (en) * | 1987-08-17 | 1989-03-30 | Производственное объединение "Новокраматорский машиностроительный завод" | Powder-type fire-fighting installation |
| CN2302817Y (en) * | 1997-08-09 | 1999-01-06 | 梁鑫海 | Horizontal dry-power fire-extinguisher |
| CN2758277Y (en) * | 2004-12-23 | 2006-02-15 | 北京工业大学 | Synchronized power feeding device for laser fast shaping |
| WO2007117168A1 (en) * | 2006-04-07 | 2007-10-18 | Vladimir Ivanovich Seliverstov | Fire-extinguishing gas-dispersed composition, a fire-fighting method and a device for carrying out said method |
| CN102335491A (en) * | 2011-07-27 | 2012-02-01 | 江苏中瑞电保智能装备有限公司 | Pipe network type dry powder fire extinguishing system and method |
| CN102406999A (en) * | 2011-07-27 | 2012-04-11 | 江苏中瑞电保智能装备有限公司 | Pipe network type divisional dry powder fire extinguishing system and method |
| CN102861397A (en) * | 2012-10-11 | 2013-01-09 | 西安新竹防灾救生设备有限公司 | Dry powder extinguishment explosion suppression system of oil tank truck |
| CN102940945A (en) * | 2012-12-07 | 2013-02-27 | 北京北机机电工业有限责任公司 | Gas powder agitating device for fire extinguisher |
| CN203154690U (en) * | 2013-04-11 | 2013-08-28 | 大连东方宇科技开发有限公司 | Fire-fighting remote control system for intelligent substation |
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Application publication date: 20141210 |
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