CN110772734A - Cable shaft fireproof device and construction method thereof - Google Patents
Cable shaft fireproof device and construction method thereof Download PDFInfo
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- CN110772734A CN110772734A CN201911089157.5A CN201911089157A CN110772734A CN 110772734 A CN110772734 A CN 110772734A CN 201911089157 A CN201911089157 A CN 201911089157A CN 110772734 A CN110772734 A CN 110772734A
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- cable shaft
- cable
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- closing plate
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- Health & Medical Sciences (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a cable shaft fire protection device and a construction method thereof, wherein the cable shaft fire protection device comprises a plurality of partition plates made of flame-retardant materials, a detection device and a fire extinguishing device, the partition plates are horizontally arranged in a cable shaft, the detection device and the fire extinguishing device are positioned in the cable shaft, the fire extinguishing device comprises a fire extinguishing tank embedded in the partition plates, a valve positioned at a tank opening of the fire extinguishing tank and a motor driving the valve to open and close, the valve comprises a valve body and a valve core rotatably connected to the valve body, the valve core extends out of the valve body along the radial direction of the valve body, gears meshed with each other are respectively arranged at the outer end part of the valve core and an output shaft of the. The invention has the effect of automatically extinguishing fire by detecting the temperature of the cable in time.
Description
Technical Field
The invention relates to the field of fire fighting devices of cable shafts, in particular to a fire protection device of a cable shaft and a construction method thereof.
Background
The cable shaft is a vertical channel of a high-rise building for vertically walking a power supply cable or a communication cable, the cable can generate heat in the using process, so that potential safety hazards of fire exist, when the cable catches fire, the fire easily spreads all around along the cable shaft, and huge economic loss can be brought to people, so that the fireproof device in the cable shaft is very important.
At present, a Chinese patent with publication number CN209233376U discloses a cable shaft bridge fireproof isolation plate, which comprises a tray layer, a fireproof tray layer and a filling layer; the both sides of filling layer all are equipped with fire prevention tray layer and tray layer, fire prevention tray layer and filling layer are equipped with the cable and reserve the pipeline, the cable is reserved the pipeline and is set up perpendicularly with tray layer, fire prevention tray layer, filling layer.
This kind of cable shaft crane span structure fire prevention division board sets up in the cable shaft, separates into the multilayer with the cable shaft, when one of them layer cable conflagration breaks out, when burning the division board, because the division board is fire-retardant to between the adjacent division board of intensity of a fire restriction, thereby reduce the loss. This fire protection measure can only contain the fire in a section of the area, but there is no device to extinguish the fire in time when the cable is burned. Therefore, it is necessary to design a fire-protection device having an automatic fire-extinguishing function.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the cable shaft fireproof device which has the advantages that the temperature of the cable is detected in time, and when the cable is on fire, the fire can be automatically extinguished in time.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a cable shaft firebreak device, includes that the level sets up the division board of a plurality of fire-retardant materials in the cable shaft, is located detection device and the extinguishing device in the cable shaft, extinguishing device is including inlaying the fire pot of establishing in the division board, being located the jar mouth of fire pot valve, the motor that drives the valve and open and shut, the valve includes the valve body, rotates the case of connecting on the valve body, the case radially extends the valve body along the valve body, be equipped with intermeshing's gear on the outer tip of case and the output shaft of motor respectively, detection device and motor signal connection.
Through above-mentioned technical scheme, detection device is used for monitoring the temperature on cable surface, and when the temperature on cable surface was unusual, detection device passed to extinguishing device with the signal, and extinguishing device sprays liquid carbon dioxide in to the cable shaft, reduces the temperature of cable or when the cable catches fire, puts out the fire source. The motor is used for automatically driving the valve to open through the transmission of the gear, and after the valve is opened, the fire extinguishing tank releases carbon dioxide, so that the function of automatically releasing the carbon dioxide is realized. This kind of mode can discover in time the condition that the cable generates heat unusually to have the automatic fire extinguishing function, further reduce the loss to minimum.
The invention is further configured to: the detection device comprises a heat-conducting plate sleeved on the cable and a temperature sensor connected to the heat-conducting plate, wherein a controller is arranged in the cable shaft, and the controller is simultaneously in electric signal connection with the motor and the temperature sensor.
Through above-mentioned technical scheme, the heat-conducting plate can absorb heat fast for the heat-conducting plate is the same with the temperature of cable, and temperature sensor is used for the temperature on the real time monitoring heat-conducting plate, and gives the controller with signal transmission, starts through controller control motor. Thus, information transmission between the detection device and the fire extinguishing device is realized.
The invention is further configured to: a searchlight is arranged in the cable shaft, and a camera is arranged on one side of the searchlight.
Through above-mentioned technical scheme, the searchlight is convenient for artifically patrols and examines, and the camera can the long-range artifical control of being convenient for in the record cable shaft.
The invention is further configured to: the division board is including fixing the ring on the cable shaft lateral wall, can dismantle the closing plate of connection on the ring, the jar that goes out fire inlays and establishes on the closing plate, the lower fixed surface of ring is equipped with the connecting rod, the shell of motor is fixed on the connecting rod, the motor is located the below of case.
Through above-mentioned technical scheme, the jar that goes out fire exists the shelf life, perhaps goes out the jar after using up, all needs to change the jar that goes out fire. The closing plate is detachably connected to the ring, so that the fire extinguishing tank can be replaced by a new one by detaching the closing plate. The motor is positioned below the valve core, so that the upward movement of the fire extinguishing tank is not hindered.
The invention is further configured to: the sealing plate is square, the circular ring is a circular square hole, and the peripheral side surfaces of the sealing plate are inclined surfaces which contract towards the center.
Through above-mentioned technical scheme, the upper surface of closing plate is greater than the lower surface of closing plate, prevents like this that the closing plate from dropping from the ring centre.
The invention is further configured to: a plurality of conical holes for the cables to pass through are distributed on the circular ring, and two semicircular clamping sleeves for clamping the cables are arranged in the conical holes.
Through above-mentioned technical scheme, because the vertical setting of cable, the clamp sleeve sets up in the bell mouth, presss from both sides the cable tight simultaneously for the gravity of cable is on average fallen on every ring, makes the even atress of cable.
The invention is further configured to: the fixed plate is provided with two cylinders for lifting the sealing plate, the cylinders are arranged along the diameter direction of the sealing plate, the L-shaped connecting plate is fixed on the sealing plate, and a piston rod of each cylinder is connected with the horizontal end of the corresponding connecting plate.
Through above-mentioned technical scheme, because the cross-section space of cable shaft is very little, lead to the inconvenient transport fire extinguishing tank of staff and closing plate, the cylinder is used for automatic drive fire extinguishing tank and closing plate to break away from the ring, replaces artifical transport, and is more laborsaving.
The invention is further configured to: the upper surface of the circular ring is fixed with a T-shaped rod, the maximum extension of the cylinder is greater than the vertical height of the T-shaped rod, and the vertical height of the T-shaped rod is greater than the length of the fire extinguishing tank.
Through above-mentioned technical scheme, when the jar that goes out a fire breaks away from the ring, the horizontal migration connecting plate for the connecting plate falls on T shape pole, makes the jar that goes out a fire staggers with the hole on the ring like this, and when preventing to dismantle the jar that goes out a fire, the jar that goes out a fire drops from the interlude of ring.
The invention also aims to provide a cable shaft fireproof device which has the advantages that the temperature of the cable can be detected in time, and the cable can be extinguished in time when the cable catches fire.
The technical purpose of the invention is realized by the following technical scheme: a construction method of a cable shaft fireproof device comprises the following steps:
1. firstly, fixing a circular ring on the side wall of a cable shaft, and enabling the circular ring to be flush with the floor of a building, then laying a cable, and enabling the cable to pass through a conical hole in the circular ring;
2. then, the detection device is assembled in advance, and then is directly assembled on the cable shaft, and a power supply lead is led to the outer side of the cable shaft;
3. then fixing the servo motor on the circular ring through a connecting rod, and leading the lead of the servo motor out of the cable shaft;
4. and finally, pre-assembling the fire extinguishing tank on the closing plate, and integrally assembling the closing plate and the fire extinguishing tank on the circular ring.
Through the technical scheme and the construction method, the detection device and the fire extinguishing device can be installed in the cable shaft, so that the cable is convenient to maintain in the later period, the possibility of cable ignition is reduced, and the loss of the cable is further reduced.
The invention is further configured to: step 4 also comprises the following steps of maintenance and replacement:
40. firstly, the sealing plate and the fire extinguishing tank are driven to separate from the circular ring through the cylinder;
41. separating the connecting plate from the cylinder, and horizontally moving the fire extinguishing tank to enable the connecting plate to be located at the horizontal end of the T-shaped rod;
42. detaching the fire extinguishing tank from the closing plate, and replacing the fire extinguishing tank with a new one;
43. finally, the fire extinguishing pot and the closing plate are mounted on the circular ring.
Through the technical scheme, the fire extinguishing device is convenient to replace regularly, and the fire can be timely and effectively extinguished when a fire accident happens.
In conclusion, the invention has the following beneficial effects:
1. the abnormal heating condition of the cable can be detected in time, and the fire can be extinguished in the first time after the cable is on fire, so that the loss is reduced;
2. the fire extinguishing tank can be replaced regularly, so that the fire extinguishing device is guaranteed to be effective all the time;
3. the construction method of the fire protection device facilitates installation of the entire device into a cable shaft.
Drawings
Fig. 1 is a schematic workflow diagram of the present embodiment.
Fig. 2 is a schematic structural view of the inside of the cable shaft of the present embodiment.
Fig. 3 is a schematic structural view of the components of the upper surface of the partition plate of the present embodiment.
Reference numerals: 10. a cable shaft; 11. a cable; 12. a floor; 13. a searchlight; 14. a camera; 15. an access door; 2. a detection device; 21. a heat conducting plate; 22. a temperature sensor; 23. a controller; 3. a fire extinguishing device; 31. a fire extinguishing tank; 311. a baffle ring; 32. a valve; 321. a valve body; 322. a valve core; 33. a motor; 34. a gear; 35. a cylinder; 36. a T-shaped rod; 4. a partition plate; 41. a circular ring; 42. a closing plate; 43. a tapered hole; 44. a jacket; 45. a connecting plate; 46. a connecting rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: referring to fig. 1 and 2, a cable shaft fire-protection apparatus includes a plurality of partitions 4 horizontally disposed in a cable shaft 10, a detection apparatus 2 and a fire-extinguishing apparatus 3 located in the cable shaft 10. The partition plates 4 correspond to each floor 12 of the high-rise building, and the partition plates 4 divide the cable shaft 10 into a plurality of sections, so that when the cable 11 is on fire, the fire range is limited to a small area. The cable 11 can generate heat under the condition of being electrified, the detection device 2 is used for detecting the surface temperature of the cable 11, when the surface temperature of the cable 11 exceeds a safe range, the detection device 2 transmits a signal to the fire extinguishing device 3, the fire extinguishing method adopts a carbon dioxide fire extinguishing method, the fire extinguishing device 3 releases liquid carbon dioxide into the cable shaft 10, the temperature in the cable shaft 10 is reduced, and open fire is extinguished when the open fire is generated. This enables extinguishing the cable 11 at a first time.
Referring to fig. 2 and 3, the fire extinguishing apparatus 3 includes a fire extinguishing tank 31 embedded in the center of the partition plate 4, a valve 32 located at the tank opening of the fire extinguishing tank 31, and a motor 33 driving the valve 32 to open and close automatically, the valve 32 includes a valve body 321 fixed on the fire extinguishing tank 31, a valve core 322 located in the valve body 321, and the valve core 322 extends out of the valve body 321; the output shaft of the motor 33 and the outer end of the valve core 322 are provided with gears 34 which are meshed with each other, the motor 33 is positioned below the valve core 322, the lower end of the partition plate 4 is fixedly provided with a connecting rod 46, and the lower end of the connecting rod 46 is fixed on the shell of the motor 33. The motor 33 drives the valve 32 to open and close through the transmission of the gear 34. The controller 23 is fixedly arranged in the cable shaft 10, and the controller 23, the detection device 2 and the motor 33 are in electric signal connection. When the detection device 2 detects that the cable 11 generates heat abnormally, a signal is transmitted to the controller 23, the controller 23 controls the motor 33 to start, and the valve 32 is further driven to open; when the temperature drops back to the safe temperature, the controller 23 controls the motor 33 to rotate in reverse to close the valve 32.
Referring to fig. 2, the detecting device 2 includes a heat conducting plate 21 disposed on the outer surface of the cable 11, and a temperature sensor 22 fixed on the heat conducting plate 21, wherein a sensing contact of the temperature sensor 22 contacts with the heat conducting plate 21, so as to accurately detect the temperature of the cable 11. The temperature sensor 22 is electrically connected with the controller 23, when the temperature sensor 22 detects that the cable abnormally generates heat, the signal is transmitted to the controller 23, and then the controller 23 controls the motor 33 to start.
Referring to fig. 2, a searchlight 13 and a camera 14 are arranged between adjacent partitions 4 in the cable shaft 10, the camera 14 is used for remotely monitoring the abnormal condition of the cable shaft 10, and the searchlight 13 plays a role in illumination, so that manual inspection of the condition of the cable shaft 10 is facilitated.
Referring to fig. 2 and 3, the partition plate 4 includes a ring 41 fixed on the cable shaft 10, and a closing plate 42 inserted into the ring 41, the closing plate 42 is square, the ring 41 and the closing plate 42 are made of steel, and heat insulating mud is applied to upper and lower sides of the ring 41 and the closing plate 42. The ring 41 is provided with a plurality of tapered holes 43, the cable 11 passes through the tapered holes 43, and two semicircular jackets 44 are provided in the tapered holes 43. Since the cable 11 is vertically arranged, the gravity of the cable 11 is very large, the jacket 44 holds the cable 11, and then the jacket 44 is put into the tapered hole 43, the deeper the jacket 44 fits into the tapered hole 43, the tighter the jacket 44 holds the cable 11, so that the gravity of the cable 11 is evenly dropped on each ring 41, thus serving as a fixing and supporting function for the cable 11.
Referring to fig. 2 and 3, the peripheral sides of the closing plate 42 are beveled to narrow inward so that the upper surface of the closing plate 42 is larger than the lower surface of the closing plate 42. When the closing plate 42 is fitted on the ring 41, the closing plate 42 is effectively prevented from falling off the ring 41. Liquid carbon dioxide is placed in the fire extinguishing tank 31, and the fire extinguishing tank 31 needs to be replaced after the liquid carbon dioxide has a shelf life and is used up. An access door 15 is arranged on the cable shaft 10, and the access door 15 is detachably connected to the side wall of the cable shaft 10 through bolts.
Referring to fig. 2 and 3, two cylinders 35 are vertically disposed on the upper surface of the ring 41, an L-shaped connecting plate 45 is fixedly disposed on the upper surface of the closing plate 42, and a piston rod of each cylinder 35 abuts against the lower surface of a horizontal section of the connecting plate 45. When a new fire extinguishing pot 31 needs to be replaced, a movable air pump is arranged from the outside and is connected with the air cylinder 35 through an air pipe, so that the closing plate 42 and the fire extinguishing pot 31 are pushed out of the circular ring 41 through the air cylinder 35. The maximum extension and retraction of the cylinder 35 is greater than the length of the fire pot 31, which ensures that the cylinder 35 is able to fully eject the fire pot 31 and the closure plate 42 out of the ring 41.
Referring to fig. 2 and 3, two T-shaped bars 36 are provided on the upper surface of the fixing plate, the two T-shaped bars 36 being arranged in parallel, the horizontal section of the T-shaped bar 36 facing the access door 15. The vertical height of the T-bar 36 is less than the maximum extension of the cylinder 35 and greater than the length of the fire pot 31 at the lower end of the ring 41. When cylinder 35 is ejecting with closing plate 42 and fire pot 31 for the lower surface of the horizontal end of connecting plate 45 is located the upper surface of the horizontal end of T shape pole 36, horizontal sliding connection board 45 makes connecting plate 45 drop on T shape pole 36, makes closing plate 42 stagger with the square hole on the ring 41 like this, prevents to change the in-process of fire pot 31, and fire pot 31 drops from the middle of ring 41. A retainer ring 311 is screwed to the fire extinguishing pot 31, and the retainer ring 311 is positioned above the closing plate 42. The retainer ring 311 is rotated to disengage the retainer ring 311 from the fire pot 31, and the fire pot 31 is removed from the closure plate 42 from the lower end. The assembly process is the reverse of the disassembly process.
The action process is as follows: the cable 11 can generate heat under the condition of being electrified, the detection device 2 is used for detecting the surface temperature of the cable 11, when the surface temperature of the cable 11 exceeds the safe range, the detection device 2 transmits a signal to the fire extinguishing device 3 at the moment, the fire extinguishing device 3 releases liquid carbon dioxide into the cable shaft 10, the temperature in the cable shaft 10 is reduced, and open fire is extinguished when the open fire is generated.
Embodiment 2, referring to fig. 2 and 3, a method for constructing a fire-proof device for a cable shaft, comprising the steps of: the ring 41 is first fixed to the side wall of the cable shaft 10, and when the cable shaft 10 is being built, the ring 41 is embedded in the side wall of the cable shaft 10, and the ring 41 is flush with the floor 12. The detection device 2 is preassembled, while the fire pot 31, the valve 32 and the closure plate 42 are assembled. After the cable 11 is laid, the detection device 2 is installed on the cable 11, and the lead wires are led out of the cable shaft 10; mounting the motor 33 on the ring 41 and leading the wires out of the cable shaft 10; the controller 23 is mounted to the side wall of the cable shaft 10 and the wires are led out of the cable shaft 10, and finally the three are wired in series outside. Finally, the fire extinguishing pot 31 and the closing plate 42 are mounted on the ring 41, and the access door is closed.
Referring to fig. 2 and 3, when the fire extinguishing pot 31 is replaced, the fire extinguishing pot 31 and the closing plate 42 are pushed out of the ring 41 by the cylinder 35, and the fire extinguishing pot 31 and the closing plate 42 are moved horizontally so that the connecting plate 45 falls on the horizontal end of the T-bar 36; the fire extinguishing tank 31 is detached from the closing plate 42 and replaced with a new fire extinguishing tank 31; finally, the fire extinguishing tank 31 is pushed to enable the fire extinguishing tank 31 to fall on the piston rod of the air cylinder 35, and the fire extinguishing tank 31 is slowly inserted into the circular ring 41 under the contraction of the piston rod of the air cylinder 35.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a cable shaft firebreak device which characterized in that: division board (4), detection device (2) and extinguishing device (3) that are located cable shaft (10) including a plurality of fire-retardant materials of level setting in cable shaft (10), extinguishing device (3) are including inlaying fire pot (31) of establishing in division board (4), valve (32) that are located the jar mouth of fire pot (31), drive motor (33) that valve (32) opened and shut, valve (32) include valve body (321), rotate case (322) of connecting on valve body (321), valve body (321) radially extends out along valve body (321) in case (322), be equipped with intermeshing's gear (34) on the outer tip of case (322) and the output shaft of motor (33) respectively, detection device (2) and motor (33) signal connection.
2. Cable shaft fire protection device according to claim 1, characterized in that: detection device (2) are equipped with controller (23) including establishing heat-conducting plate (21), the temperature sensor (22) of connection on heat-conducting plate (21) on cable (11) in cable shaft (10), simultaneously with motor (33) and temperature sensor (22) signal connection in controller (23).
3. Cable shaft fire protection device according to claim 2, characterized in that: a searchlight (13) is arranged in the cable shaft (10), and a camera (14) is arranged on one side of the searchlight (13).
4. Cable shaft fire protection device according to claim 1, characterized in that: division board (4) including fixing ring (41) on cable shaft (10) lateral wall, can dismantle closing plate (42) of connection on ring (41), fire extinguishing tank (31) are inlayed and are established on closing plate (42), the lower fixed surface of ring (41) is equipped with connecting rod (46), the shell of motor (33) is fixed on connecting rod (46), motor (33) are located the below of case (322).
5. Cable shaft fire protection device according to claim 4, characterized in that: the sealing plate (42) is square, the circular ring (41) is in a circular square hole shape, and the peripheral side surfaces of the sealing plate (42) are inclined surfaces which contract towards the center.
6. Cable shaft fire protection device according to claim 5, characterized in that: a plurality of conical holes (43) for the cables (11) to pass through are distributed on the circular ring (41), and two semicircular jackets (44) for clamping the cables (11) are arranged in the conical holes (43).
7. Cable shaft fire protection device according to claim 6, characterized in that: be equipped with two cylinders (35) that are used for lifting closing plate (42) on ring (41), cylinder (35) set up along the diameter direction of closing plate (42), be fixed with connecting plate (45) of L shape on closing plate (42), the piston rod of cylinder (35) and the horizontal end butt of connecting plate (45).
8. Cable shaft fire protection device according to claim 7, characterized in that: a T-shaped rod (36) is fixed on the upper surface of the circular ring (41), the maximum extension of the air cylinder (35) is larger than the vertical height of the T-shaped rod (36), and the vertical height of the T-shaped rod (36) is larger than the length of the fire extinguishing pot (31).
9. A construction method of a cable shaft fireproof device is characterized by comprising the following steps: method of operation of a cable shaft fire protection system according to any one of claims 1 to 8, comprising the following steps:
1. firstly, fixing a circular ring (41) on the side wall of a cable shaft (10) and leveling with a floor (12) of a building, then laying a cable (11), and enabling the cable (11) to pass through a conical hole (43) in the circular ring (41);
2. then the detection device (2) is assembled in advance and then is directly assembled on the cable shaft (10) and leads the power supply lead to the outer side of the cable shaft (10);
3. then fixing the motor (33) on the circular ring (41) through a connecting rod (46), and leading the lead of the motor (33) out of the cable shaft (10);
4. finally, the fire extinguishing tank (31) is assembled on the closing plate (42) in advance, and then the closing plate (42) and the fire extinguishing tank (31) are integrally assembled on the circular ring (41).
10. The method of constructing a cable shaft fire protection device of claim 9, wherein: step 4 also comprises the following steps of maintenance and replacement:
40. firstly, a closing plate (42) and a fire extinguishing tank (31) are driven to separate from a circular ring (41) through a cylinder (35);
41. separating the connecting plate (45) from the cylinder (35), and horizontally moving the fire extinguishing tank (31) to enable the connecting plate (45) to be located at the horizontal end of the T-shaped rod (36);
42. detaching the fire extinguishing tank (31) from the closing plate (42) and replacing the fire extinguishing tank (31) with a new one;
43. finally, the extinguishing chamber (31) and the closing plate (42) are mounted on the ring (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911089157.5A CN110772734A (en) | 2019-11-08 | 2019-11-08 | Cable shaft fireproof device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911089157.5A CN110772734A (en) | 2019-11-08 | 2019-11-08 | Cable shaft fireproof device and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110772734A true CN110772734A (en) | 2020-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911089157.5A Pending CN110772734A (en) | 2019-11-08 | 2019-11-08 | Cable shaft fireproof device and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110772734A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569511A (en) * | 2021-01-13 | 2021-03-30 | 杭州遥卡数码电子有限公司 | Movable fire-fighting device in cable shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2397952Y (en) * | 1998-11-30 | 2000-09-27 | 范贵华 | Automatic fire extinguisher |
| CN201889010U (en) * | 2010-08-24 | 2011-07-06 | 济南欧泰动力技术有限公司 | Intelligent fire fighting system |
| CN207337600U (en) * | 2017-07-31 | 2018-05-08 | 南京信息工程大学 | A kind of cable shaft intelligent Fire Alarm-control System |
| CN108195994A (en) * | 2018-01-19 | 2018-06-22 | 国网安徽省电力有限公司电力科学研究院 | A kind of electric shaft partition board fire resistance detection platform |
| CN208748866U (en) * | 2018-08-23 | 2019-04-16 | 中消安科技实业（深圳）有限公司 | A kind of cable shaft isolation closure fire proof construction |
| KR20190075737A (en) * | 2017-12-21 | 2019-07-01 | 주식회사 포스코 | Fire extinguishing device for electric installation using nitrogen |
| CN209233376U (en) * | 2019-01-28 | 2019-08-09 | 国网安徽省电力有限公司淮北供电公司 | A kind of cable shaft gantry fire prevention isolation board |
-
2019
- 2019-11-08 CN CN201911089157.5A patent/CN110772734A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2397952Y (en) * | 1998-11-30 | 2000-09-27 | 范贵华 | Automatic fire extinguisher |
| CN201889010U (en) * | 2010-08-24 | 2011-07-06 | 济南欧泰动力技术有限公司 | Intelligent fire fighting system |
| CN207337600U (en) * | 2017-07-31 | 2018-05-08 | 南京信息工程大学 | A kind of cable shaft intelligent Fire Alarm-control System |
| KR20190075737A (en) * | 2017-12-21 | 2019-07-01 | 주식회사 포스코 | Fire extinguishing device for electric installation using nitrogen |
| CN108195994A (en) * | 2018-01-19 | 2018-06-22 | 国网安徽省电力有限公司电力科学研究院 | A kind of electric shaft partition board fire resistance detection platform |
| CN208748866U (en) * | 2018-08-23 | 2019-04-16 | 中消安科技实业（深圳）有限公司 | A kind of cable shaft isolation closure fire proof construction |
| CN209233376U (en) * | 2019-01-28 | 2019-08-09 | 国网安徽省电力有限公司淮北供电公司 | A kind of cable shaft gantry fire prevention isolation board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569511A (en) * | 2021-01-13 | 2021-03-30 | 杭州遥卡数码电子有限公司 | Movable fire-fighting device in cable shaft |
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Application publication date: 20200211 |