CN203452827U - Electric cable tunnel heat radiation structure - Google Patents
Electric cable tunnel heat radiation structure Download PDFInfo
- Publication number
- CN203452827U CN203452827U CN201320572968.2U CN201320572968U CN203452827U CN 203452827 U CN203452827 U CN 203452827U CN 201320572968 U CN201320572968 U CN 201320572968U CN 203452827 U CN203452827 U CN 203452827U
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- cable
- electric cable
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Abstract
The utility model discloses an electric cable tunnel heat radiation structure. The electric cable tunnel heat radiation structure comprises an electric cable tunnel, an electric cable trench and an electric cable shaft, wherein the electric cable tunnel maintains an electric cable; the electric cable trench is connected with the electric cable tunnel; the electric cable shaft is connected with the electric cable trench and leads to an air cooling platform; the side wall of the connecting end of the electric cable shaft and the electric cable trench is provided with an upper-layer blind window and a lower-layer blind window, wherein a fireproof wall is arranged between the upper-layer blind window and the lower-layer blind window. According to the utility model, a fireproof door in the electric cable tunnel is arranged at a normally opened state, and meanwhile, the electric cable trench is not provided with a fireproof block internally, so that air in the whole electric cable tunnel and the electric cable trench forms circulation; the phenomenon of temperature accumulation caused by internal unsmoothness is prevented; air enters from the upper-layer blind window and exhausts from the top of the electric cable shaft, so that air circulation is also formed, and the whole electric cable channel is at a smooth state; the possibility of catching fire in the electric cable is also reduced; even though the electric cable in the electric cable trench catches fire, the fire also can be blocked by the fireproof wall, thereby preventing the fire behavior from spreading to an air cooling system.
Description
Technical field
The utility model relates to power domain, is specifically related to the radiator structure in air cooling system supply line of thermal power plant tunnel.
Background technology
Thermal power plant generally adopts heating water to produce Steam Actuation steam turbine power generation now, heating water is wherein cooling is all to adopt air cooling system, the power supply of air cooling system all utilizes cable to be connected with switchgear house by tunnel, concrete tunnel is by cable shaft, cable trench, cable tunnel forms, for preventing tunnel internal ignition of cable, various fire prevention measures are generally all set, as the entrance in cable tunnel is provided with labeled door, in cable trench, be provided with fireproof blocking etc., although said structure has improved fire safety, but the phenomenon that has but caused atmosphere draught-free in tunnel and cable temperature is raise, this has not only affected the electricity consumption of air cooling system, and improved the probability of ignition of cable, by infrared thermoviewer, measure cable surface temperature, high energy reaches 91 ℃, there is ruckbildung in cable jacket now, and be easily tied line institute ankle injury, very easily cause the accident, this situation is more serious during air cooling system overload operation in summer.
Utility model content
The problem that causes temperature to raise due to atmosphere draught-free for solving prior art moderate heat Electric Factory Air-Cooling system power supply cable, the utility model provides a kind of air circulation by force and takes into account fireproof cable tunnel structure, concrete scheme is as follows: a kind of cable tunnel radiator structure, the cable tunnel that comprises maintenance cable, the cable trench being connected with cable tunnel, be connected and lead to the cable shaft of air cooling system with cable trench, it is characterized in that, on the sidewall of described cable shaft and cable trench link, be provided with upper strata shutter and lower floor's shutter, it is provided with fire resisting wall between shutter and lower floor's shutter at the middle and upper levels.
In order to realize fire prevention object, do not affect again ventilation effect: in described cable tunnel, labeled door is installed, on described labeled door, be provided with and make it remain on the elastic device of closed condition, on described labeled door, be connected with Rope able to be broken by fire for fire-fighting, the other end of described Rope able to be broken by fire for fire-fighting is fixed on cable, and described labeled door is fixed on open position by Rope able to be broken by fire for fire-fighting.
For improving air velocity in tunnel: the entrance of described cable tunnel is connected with the air-conditioning cold wind outlet of cooling frequency converter.
For improving safety: the entrance of described cable tunnel is provided with grid-shaped capping.
For putting out in time the fire in tunnel: suspended type ultrafine dry powder fire extinguisher bomb is installed in described cable tunnel, cable trench and cable shaft, and after the Rope able to be broken by fire for fire-fighting connecting on labeled door blows, labeled door is closed, can cut off combustion zone and stop and ventilate.
For improving the circulation of air between cable: described cable is erected in cable tunnel and cable trench by cable combination frame, described cable combination frame is interconnected to constitute by the identical support of a plurality of structures, described support comprises supporting plate and is arranged on the U-shaped plugboard of two ends of bearing plate, on the biside plate of U-shaped plugboard, be provided with the through hole of mutual correspondence, the U-shaped plugboard width of same two ends of bearing plate is different, and each support passes through hole by bearing pin and is fixed together.
The network of preferred cable installation rack: form triangle or tetragonal network after each support connects.
For accelerating the installation of support: described cable combination frame also comprises shape keeping plate for sealing, the winding sheet that described shape keeping plate for sealing adapts for shape after being connected with support, one end of described bearing pin is arranged on the inflection point place of shape keeping plate for sealing.
For avoiding the cable moving after installation: described cable combination frame also comprises fixed edge, on a side of described fixed edge, arrange outstanding and can snap in the fixed block on support U-shaped plugboard, on fixed block, be provided with the fixing hole corresponding with through hole.
The utility model is arranged to normally open by the labeled door in cable tunnel, fireproof blocking is not set simultaneously in cable trench, the lower floor's shutter place to cable shaft discharges by switchgear house to make air in whole cable tunnel and cable trench, form a circulation, prevented the inner not smooth and accumulated temperature phenomenon that causes, cable shaft utilizes upper strata shutter air inlet to be given vent to anger by top simultaneously, also form a circulation of air circulation, make whole cable passage all in unimpeded state, also reduced the probability that inside cable catches fire, even if catching fire, cable trench inner cable also can be blocked by fire resisting wall, thereby prevented that fire spreading is to air cooling system.
The cable combination editing machine that the utility model adopts can adapt to the cable of different-diameter, and make interval between each cable have space, and avoided temperature transmission each other, be beneficial to Air Flow simultaneously, and can adapt to any amount of cable installation, installation and removal are convenient simultaneously.The form that can adopt two or more supports mutually to connect when diameter is larger realizes grid and builds.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model;
The structural representation of Fig. 2 support;
The lateral view of Fig. 3 Fig. 2;
Fig. 4 shape keeping plate for sealing structural representation;
The structural representation of Fig. 5 fixed edge;
Fig. 6 forms the bracket assembled schematic diagram of triangle gridding;
Attached number in the figure explanation: 1-cable tunnel, 2-cable trench, 3-cable shaft, 301-lower floor shutter, 302-upper strata shutter, 4-cable, 5-labeled door, 501-elastic device, 502-Rope able to be broken by fire for fire-fighting, 6-cable combination frame, 601-supporting plate, 602-U shape plugboard, 603-through hole, 604-shape keeping plate for sealing, 605-fixed edge, 606-bearing pin, 607-fixed block, 608-fixing hole, 7-fire resisting wall, 8-dry chemical projectile.
The specific embodiment
As shown in Figure 1, cable tunnel of the present utility model radiator structure, the cable tunnel 1 that comprises maintenance cable, the cable trench 2 being connected with cable tunnel 1, be connected and lead to the cable shaft 3 of air cooling system with cable trench 2, cable tunnel 1 operated by rotary motion is in switchgear house, for attendant, enter, cable trench 2 passes through for current supply cable 4, and cable shaft 3 is positioned at aerial cooling system for cable 4 is transported to, on the sidewall of described cable shaft 3 and cable trench 2 links, be provided with upper strata shutter 602He lower floor shutter 601, it is provided with fire resisting wall 7 between shutter 602He lower floor shutter 601 at the middle and upper levels.The utility model is arranged to normally open by the labeled door in cable tunnel 1, and fireproof blocking is not set in cable trench 2, lower floor's shutter 601 places to cable shaft 3 discharge by switchgear house to make air in whole cable tunnel 1 and cable trench 2, form a circulation, prevented the inner not smooth and accumulated temperature phenomenon that causes, cable shaft 3 utilizes shutter 602 air inlets in upper strata then by top, to be discharged simultaneously, also form a circulation of air circulation, make whole cable passage all in unimpeded state, also reduced the probability that inside cable catches fire, even if catching fire, cable trench 2 inner cables 4 also can be blocked by fire resisting wall 7, thereby prevented that fire spreading is to air cooling system.
For further preventing that cable trench cable catches fire, and by passing to switchgear house in cable tunnel, the utility model is provided with labeled door 5 in described cable tunnel 1, on described labeled door 5, be provided with and make its elastic device that remains on closed condition 501, on described labeled door 5, be connected with Rope able to be broken by fire for fire-fighting 502, the other end of described Rope able to be broken by fire for fire-fighting 502 is fixed on cable 4, and described labeled door 5 is fixed on open position by Rope able to be broken by fire for fire-fighting 502.By above-mentioned, be arranged so that cable tunnel 1 inner cable 4 is when missing of ignition, labeled door 5 is always in open mode, unimpeded to guarantee the air of cable tunnel 1 and cable trench 2, once catch fire, the intensity of a fire is generally caused by cable sheath, therefore can first blow Rope able to be broken by fire for fire-fighting 502, thereby make labeled door 5 by elastic device 501, be withdrawn into closed condition after losing traction strength, prevent spreading of the cable tunnel 1 interior intensity of a fire.Concrete elastic device 501 can be a spring, one end of spring is fixed on fire prevention door-hinge and connects on the doorframe of side, the other end is connected with the active side of labeled door, on doorframe, be positioned at spring one side stopper is set, under normal circumstances, the active side of labeled door be take the axle of dodge gate and is connected side as fulcrum is to spring sideway swivel under the pulling force effect of spring, effect due to stopper, make labeled door to be positioned at doorframe always and keep closed condition, Rope able to be broken by fire for fire-fighting 502 is exactly that the pulling force that overcomes spring pulls open and remain on open mode by labeled door 5 the other way around, after Rope able to be broken by fire for fire-fighting 502 is blown, labeled door 5 is returned to closed condition under the effect of spring force, blocked inner fire spreading, protected switchgear house.
For accelerating the circulation of air in cable tunnel and cable trench, the utility model is connected the air-conditioning cold air inlet of cooling frequency converter with the entrance 101 of cable tunnel 1.Air-conditioning cold wind is blown into cable tunnel 1 and not only can reduces inner temperature but also can accelerate inner air circulation, further reduce wireline environment temperature.
For improving safety, do not affect again inner ventilation, the utility model is provided with grid-shaped capping at the entrance 101 of described cable tunnel 1.
For eliminating or stoping the inner intensity of a fire, the utility model is provided with suspended type ultrafine dry powder fire extinguisher bomb 8 in described cable tunnel 1, cable trench 2 and cable shaft 3.Concrete dry chemical projectile 8 is arranged on the top of cable 4, once cable 8 catches fire, can burn dry chemical projectile 8, and dry chemical projectile 8 blasts, thereby inner dry powder is withdrawn from and the intensity of a fire is put out.This passive fire protection measure, can reduce attendant's workload, even if can put out a fire simultaneously.
As Fig. 2, shown in 3, for avoiding being in contact with one another between each cable, and improve circulation of air effect, cable 4 described in the utility model is erected in cable tunnel 1 and cable trench 2 by cable combination frame 6, described cable combination frame 6 is interconnected to constitute by the identical support of a plurality of structures, described support comprises supporting plate 601 and is arranged on the U-shaped plugboard 602 of two ends of bearing plate, on the biside plate of U-shaped plugboard 602, be provided with the through hole 603 of mutual correspondence, U-shaped plugboard 602 width at same supporting plate 601 two ends are different, each support is fixed together through through hole 603 by bearing pin 606.During use, the U-shaped plugboard 602 of two stands is plugged in together mutually, then the through hole 603 that utilizes bearing pin 606 to overlap through both is fixed together both, according to aforesaid way, a plurality of supports are connected into a plurality of identical shaped or difform networks, cable 4 is positioned at the grid of each support formation and is held by supporting plate 601, by supporting plate 601, separated each other, make isolation mutually between each cable 4, not only improved ventilation but also avoided temperature transmission each other.Employing said structure convenient disassembly and as required unlimited connection bracket.For convenience of a plurality of supports, be connected on same point, the width of the U-shaped plugboard 602 of support is arranged to different in width, when concrete connection, can select suitable width to coordinate to realize the connection of difformity network.As shown in Figure 6, form network and be preferably triangle or square after each support connects, the number of holders that such structure is used is minimum, and is easy to set up.Said structure of the present utility model can also adapt to the cable of different-diameter, and the form that can adopt two or more supports mutually to connect when diameter is larger realizes grid and builds.
As shown in Figure 4, for simplifying installation process, described cable combination frame 6 of the present utility model also comprises shape keeping plate for sealing 604, the winding sheet that described shape keeping plate for sealing 604 adapts for shape after being connected with support, and one end of described bearing pin 606 is arranged on the inflection point place of shape keeping plate for sealing 604.By said structure, can disposablely fix a plurality of supports simultaneously, or take stereotype plate as basic connection bracket, can improve the speed of building.The shape of the formation of concrete shape keeping plate for sealing 604 only otherwise affect cable pass can, as snakelike, semi-circular etc.Bearing pin can be to be spirally connected, to weld or pass the modes such as nut is connected for through hole with the connected mode of shape keeping plate for sealing.
As shown in Figure 5, for improving the intensity of whole cable combination frame, described cable combination frame 6 of the present utility model also comprises fixed edge 605, on one side of described fixed edge 605, arrange outstanding and can snap in the fixed block 607 on support U-shaped plugboard 602, on fixed block 607, being provided with the fixing hole corresponding with through hole 603 608.During use, fixed edge 605 can be placed on the ground to the basis as whole cable combination frame 6, other support is installed, it is final after all cables install, utilize fixed edge 605 to be connected with peripheral bracket end, make whole cable combination frame form one, end at each fixed edge arranges the structure interfixing, and can make fixed edge form an encapsulating structure, avoids inside cable to move.
The above is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model with preferred embodiment openly as above, yet not in order to limit the utility model, any technician who is familiar with this patent is not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned prompting to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of the utility model scheme.
Claims (9)
1. a cable tunnel radiator structure, the cable tunnel (1) that comprises maintenance cable (4), the cable trench (2) being connected with cable tunnel (1), be connected and lead to the cable shaft (3) of air cooling system with cable trench (2), it is characterized in that, on the sidewall of described cable shaft (3) and cable trench (2) link, be provided with upper strata shutter (302) and lower floor's shutter (301), it is provided with fire resisting wall (7) between shutter (302) and lower floor's shutter (301) at the middle and upper levels.
2. a kind of cable tunnel as claimed in claim 1 radiator structure, it is characterized in that, labeled door (5) is installed in described cable tunnel (1), on described labeled door (5), be provided with and make its elastic device that remains on closed condition (501), on described labeled door (5), be connected with Rope able to be broken by fire for fire-fighting (502), it is upper that the other end of described Rope able to be broken by fire for fire-fighting (502) is fixed on cable (4), and described labeled door (5) is fixed on open position by Rope able to be broken by fire for fire-fighting (502).
3. a kind of cable tunnel as claimed in claim 1 radiator structure, is characterized in that, the entrance (101) of described cable tunnel (1) is connected with the air-conditioning cold air inlet of cooling frequency converter.
4. a kind of cable tunnel as claimed in claim 1 radiator structure, is characterized in that, the entrance (101) of described cable tunnel (1) is provided with grid-shaped capping.
5. a kind of cable tunnel as claimed in claim 1 radiator structure, is characterized in that, in described cable tunnel (1), cable trench (2) and cable shaft (3), suspended type ultrafine dry powder fire extinguisher bomb (8) is installed.
6. a kind of cable tunnel as claimed in claim 1 radiator structure, it is characterized in that, described cable (4) is erected in cable tunnel (1) and cable trench (2) by cable combination frame (6), described cable combination frame (6) is interconnected to constitute by the identical support of a plurality of structures, described support comprises supporting plate (601) and is arranged on the U-shaped plugboard (602) at supporting plate (601) two ends, on the biside plate of U-shaped plugboard (602), be provided with the through hole (603) of mutual correspondence, U-shaped plugboard (602) width at same supporting plate (601) two ends is different, each support is fixed together through through hole (603) by bearing pin (606).
7. a kind of cable tunnel as claimed in claim 6 radiator structure, is characterized in that, after each support connects, forms triangle or tetragonal network.
8. a kind of cable tunnel as claimed in claim 6 radiator structure, it is characterized in that, described cable combination frame (6) also comprises shape keeping plate for sealing (604), the winding sheet that described shape keeping plate for sealing (604) adapts for shape after being connected with support, one end of described bearing pin (606) is arranged on the inflection point place of shape keeping plate for sealing (604).
9. a kind of cable tunnel as claimed in claim 6 radiator structure, it is characterized in that, described cable combination frame (6) also comprises fixed edge (605), on one side of described fixed edge (605), arrange outstanding and can snap in the fixed block (607) on support U-shaped plugboard (602), on fixed block (607), being provided with the fixing hole (608) corresponding with through hole (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320572968.2U CN203452827U (en) | 2013-09-16 | 2013-09-16 | Electric cable tunnel heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320572968.2U CN203452827U (en) | 2013-09-16 | 2013-09-16 | Electric cable tunnel heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452827U true CN203452827U (en) | 2014-02-26 |
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ID=50132711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320572968.2U Expired - Lifetime CN203452827U (en) | 2013-09-16 | 2013-09-16 | Electric cable tunnel heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452827U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310564A (en) * | 2016-10-18 | 2017-01-11 | 上海市政工程设计研究总院（集团）有限公司 | Flame spread preventing method for cable tunnel fires |
| CN107435553A (en) * | 2017-08-03 | 2017-12-05 | 肥城白庄煤矿有限公司 | Extinguishing device and method for well industrial and mineral well shaft |
| CN113622997A (en) * | 2021-08-30 | 2021-11-09 | 国家电网有限公司 | Comprehensive cable tunnel |
-
2013
- 2013-09-16 CN CN201320572968.2U patent/CN203452827U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310564A (en) * | 2016-10-18 | 2017-01-11 | 上海市政工程设计研究总院（集团）有限公司 | Flame spread preventing method for cable tunnel fires |
| CN107435553A (en) * | 2017-08-03 | 2017-12-05 | 肥城白庄煤矿有限公司 | Extinguishing device and method for well industrial and mineral well shaft |
| CN113622997A (en) * | 2021-08-30 | 2021-11-09 | 国家电网有限公司 | Comprehensive cable tunnel |
| CN113622997B (en) * | 2021-08-30 | 2022-08-12 | 国家电网有限公司 | Comprehensive cable tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |