CN209980805U - Safe fireproof cable - Google Patents
Safe fireproof cable Download PDFInfo
- Publication number
- CN209980805U CN209980805U CN201921068348.9U CN201921068348U CN209980805U CN 209980805 U CN209980805 U CN 209980805U CN 201921068348 U CN201921068348 U CN 201921068348U CN 209980805 U CN209980805 U CN 209980805U
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- CN
- China
- Prior art keywords
- layer
- armor
- cable
- ignition rod
- air bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000010410 layer Substances 0.000 claims abstract description 73
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011241 protective layer Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 238000010304 firing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 230000037452 priming Effects 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 239000003063 flame retardant Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000006173 Good's buffer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
This scheme belongs to cable technical field, specifically discloses a safe fireproof cable, including heart yearn, insulating layer and armor, heart yearn, insulating layer and armor set gradually its characterized in that by interior toward outer: the air bag and the filling layer are arranged between the insulating layer and the armor layer, and nitrogen is arranged in the air bag; the cable protection device also comprises a protection layer and a firing rod, wherein the protection layer is arranged on the armor layer and forms a cavity with the cable; the ignition rod is fixed on the armor layer, one end of the ignition rod extends out of the protective layer, the other end of the ignition rod extends into the armor layer and is connected to the air bag, and the ignition point of the ignition rod is lower than that of the protective layer and the armor layer. Compare with traditional cable, the cooperation of this scheme utilization nitrogen gas and inoxidizing coating, the effectual performance that increases the cable fire prevention has prolonged the time that the cable was on fire, has striven for the time of rescue for the rescue personnel.
Description
Technical Field
This scheme belongs to cable technical field, specifically discloses a safe fireproof cable.
Background
The power cable is used for transmitting and distributing electric energy and is commonly used for urban underground power grids, leading-out lines of power stations, internal power supply of industrial and mining enterprises and underwater power transmission lines crossing rivers and sea.
Along with the development of society, the fire prevention of high-rise buildings and important buildings is more and more paid attention to by people, and especially in areas where fire easily occurs, fire prevention cables are generally adopted. The fire-retardant cable in the prior art generally adopts a fire-retardant cable or a fire-resistant cable, and the fire-retardant cable generally only adds a fire retardant into an insulating material and a protective layer material, so that the insulating material and the protective layer material can still burn, bear fire can still be burnt by the fire-retardant cable once a fire breaks out, breakdown and other faults can also happen to the cable during operation to cause the fire, and the fire cannot be effectively flame-retardant and fire-proof.
Therefore, a cable with high fire resistance is urgently needed to increase the safety of the cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe fireproof cable to increase the fire behavior of cable.
In order to achieve the purpose, the scheme provides a safe fireproof cable which comprises a core wire, an insulating layer and an armor layer, wherein the core wire, the insulating layer and the armor layer are sequentially arranged from inside to outside; the cable protection device also comprises a protection layer and a firing rod, wherein the protection layer is arranged on the armor layer and forms a cavity with the cable; the ignition rod is fixed on the armor layer, one end of the ignition rod extends out of the protective layer, the other end of the ignition rod extends into the armor layer and is connected to the air bag, and the ignition point of the ignition rod is lower than that of the protective layer and the armor layer.
The principle and the beneficial effect of the scheme are that: the air bag can play a good buffering role, and the pressure resistance of the cable can be effectively increased. When a fire breaks out, the ignition rod will catch fire first because its ignition point is low. When the ignition rod burns to the gasbag, the gasbag is then damaged, and nitrogen gas lasts the blowout from the cable, can play good fire prevention effect. Simultaneously, because the existence of inoxidizing coating, the inoxidizing coating carries out the water conservancy diversion to nitrogen gas to make nitrogen gas hold in the cavity in a large number, on the one hand has increased the nitrogen content of cavity, makes the cable difficult for catching a fire, on the other hand has also reduced the too fast loss of nitrogen gas. Compare with traditional cable, the cooperation of this scheme utilization nitrogen gas and inoxidizing coating, the effectual performance that increases the cable fire prevention has prolonged the time that the cable was on fire, has striven for the time of rescue for the rescue personnel.
Furthermore, the filling layer is a glass fiber filling layer, and the glass fiber filling layer has good insulation and has good buffering effect.
Further, the insulating layer is a polyether-ether-ketone insulating layer. The insulating layer is a polyether-ether-ketone insulating layer, and the insulating property is excellent.
Further, the armor layer is a polytetrafluoroethylene armor layer. The polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-sticking property, electrical insulation property, good ageing resistance and good use effect.
Furthermore, one end of the protective layer extends into the armor layer, a sealing plate is arranged at one end extending into the armor layer, and the sealing plate and the protective layer are integrally formed. The setting of closing plate, the effectual leakproofness that increases the cable avoids nitrogen gas to reveal.
Furthermore, the quantity of inoxidizing coating is a plurality of to distribute along the cable circumference, the quantity of priming system pole is the same with the inoxidizing coating, and sets up with the inoxidizing coating correspondence. Compared with a single protective layer, the arrangement of a plurality of protective layers can enable the combustion path of the ignition rod to be shorter, the nitrogen air bag can be opened more easily, and the fault tolerance rate is lower. Meanwhile, fire prevention can be performed from a plurality of directions, and the fire prevention effect is better.
Drawings
Fig. 1 is a schematic view of an embodiment of the safety fireproof cable of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the core wire 10, the insulating layer 11, the filling layer 12, the airbag 20, the protective layer 30, the fuse rod 31 and the armor layer 32.
As shown in fig. 1, the present scheme provides a safe fireproof cable, which has five groups of core wire units inside, each group of core wire unit includes a core wire 10 and an insulating layer 11 coated outside the core wire, and the insulating layer 11 is made of a polyether-ether-ketone material with excellent insulating property. The centermost core element has one large core 10 and four other groups are distributed along its circumference, with a plurality of cores 10 contained therein.
And the outside of each group of core wire units is filled with a filling layer 12, and the filling layer 12 is a glass fiber filling layer 12 which has good insulation and good buffer effect. Four air bags 20 are arranged between the filling layers 12, and nitrogen is filled in the air bags 20. The air inlet of the airbag 20 is connected to the ignition rod 31, and even the ignition rod 31 may be formed as an air inlet plug of the airbag 20. The form is not limited as long as the airbag 20 can be deflated by opening when the ignition bar 31 is burned to the airbag 20.
The outer layer is an armor layer 32, and the armor layer 32 is a polytetrafluoroethylene armor layer 32. The polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-sticking property, electrical insulation property, good ageing resistance and good use effect. The armor layer 32 is provided with four mounting ports, and each mounting port is provided with a fire rod 31 and a shield 30.
The middle part of the ignition rod 31 is fixed on the outer side of the armor layer 32, one end of the ignition rod 31 extends out of the protective layer 30, and the other end extends into the armor layer 32 and is connected to the airbag 20. One end of the protective layer 30 also extends into the protective layer 30, and the end is also integrally formed with a sealing block, wherein the sealing block is arc-shaped, the size of the sealing block is larger than that of the sealing opening, the sealing block is mainly used for sealing the sealing opening, and the sealing effect is good. The armor 30 does not abut the armor 32, and there is a space between the armor 32 and the armor 32 to form four cavities with the armor 32.
Most notably, the firing point of the primer rod 31 must be lower than the armor layer 32 and the armor layer 30. Generally, it is recommended that the armor layer 30 and the armor layer 32 be made of a material having high temperature resistance, and preferably, a fire-resistant layer be further coated on the surface thereof. And the priming lever 31 may be selected from the group consisting of wood or the lead of a pyrotechnic cracker. In order to avoid deterioration failure, a layer of wax oil is coated on the surface of the sealing ring, so that the sealing performance is improved, and the effect is better.
In this scheme, gasbag 20 can play good buffering effect, can the effectual crushing resistance that increases the cable. When a fire breaks out, the ignition rod 31 will ignite and burn first because its ignition point is low. When the ignition rod 31 burns to the air bag 20, the air bag 20 is damaged, and nitrogen is continuously sprayed out of the cable, so that a good fireproof effect can be achieved. Meanwhile, due to the existence of the protective layer 30, the protective layer 30 guides the nitrogen and enables the nitrogen to be contained in the cavity in a large amount, on one hand, the nitrogen content of the cavity is increased, the cable is not prone to being ignited, and on the other hand, the too fast loss of the nitrogen is reduced. Compare with traditional cable, this scheme utilizes nitrogen gas and inoxidizing coating 30's cooperation, and the effectual performance that increases the cable fire prevention has prolonged the time that the cable was on fire, has striven for the time of rescue for the rescue personnel.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a safe fireproof cable, includes heart yearn, insulating layer and armor, heart yearn, insulating layer and armor set gradually its characterized in that by interior toward outer: the air bag and the filling layer are arranged between the insulating layer and the armor layer, and nitrogen is arranged in the air bag; the cable protection device also comprises a protection layer and a firing rod, wherein the protection layer is arranged on the armor layer and forms a cavity with the cable; the ignition rod is fixed on the armor layer, one end of the ignition rod extends out of the protective layer, the other end of the ignition rod extends into the armor layer and is connected to the air bag, and the ignition point of the ignition rod is lower than that of the protective layer and the armor layer.
2. A safety fire cable according to claim 1, wherein: the filling layer is a glass fiber filling layer.
3. A safety fire cable according to claim 1, wherein: the insulating layer is a polyether-ether-ketone insulating layer.
4. A safety fire cable according to claim 1, wherein: the armor layer is a polytetrafluoroethylene armor layer.
5. A safety fire cable according to claim 1, wherein: one end of the protective layer extends into the armor layer, a sealing plate is arranged at one end extending into the armor layer, and the sealing plate and the protective layer are integrally formed.
6. A safety fire cable according to claim 1, wherein: the quantity of inoxidizing coating is a plurality of to distribute along the cable circumference, the quantity of priming system pole is the same with the inoxidizing coating, and sets up with the inoxidizing coating correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921068348.9U CN209980805U (en) | 2019-07-10 | 2019-07-10 | Safe fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921068348.9U CN209980805U (en) | 2019-07-10 | 2019-07-10 | Safe fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209980805U true CN209980805U (en) | 2020-01-21 |
Family
ID=69267107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921068348.9U Expired - Fee Related CN209980805U (en) | 2019-07-10 | 2019-07-10 | Safe fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209980805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299220A (en) * | 2019-07-10 | 2019-10-01 | 重庆新重煤线缆有限公司 | A kind of fire safety cable |
-
2019
- 2019-07-10 CN CN201921068348.9U patent/CN209980805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299220A (en) * | 2019-07-10 | 2019-10-01 | 重庆新重煤线缆有限公司 | A kind of fire safety cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 |