CN220710000U - Low-voltage fire-resistant cable with fireproof structure - Google Patents
Low-voltage fire-resistant cable with fireproof structure Download PDFInfo
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- CN220710000U CN220710000U CN202320760795.0U CN202320760795U CN220710000U CN 220710000 U CN220710000 U CN 220710000U CN 202320760795 U CN202320760795 U CN 202320760795U CN 220710000 U CN220710000 U CN 220710000U
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- Prior art keywords
- cable
- fire
- cable core
- sheath
- ribbon
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- -1 polyethylene Polymers 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 14
- 239000002346 layers by function Substances 0.000 claims abstract description 14
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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Abstract
The embodiment of the application discloses low pressure fire-resistant cable with fire-proof structure, including the cable body, the cable body is from outside-in by protective layer and cable core in proper order and constitutes, the internally mounted of cable core has the functional layer, it has center to fill between functional layer and the cable core, the functional layer is conductor, insulating layer, metal plastic composite sheath in proper order from outside the central outside structure, around the parcel has the ribbon between cable core and the protective layer. This application is through the cooperation between cable core, ribbon and the functional layer, thereby adopts the mode of water injection between cable core and the polyethylene sheath, thereby makes cable core temperature keep lower level circuit voltage drop lower, simultaneously, when the cable body runs into local high temperature and causes oversheath and interlocking armor cohesion sheath damage, rivers in the cable core have part through damage department and interlocking armor's gap overflow, can play the effect of spraying to put out a fire, has solved the passive problem of cable body fire-resistant structure effectively.
Description
Technical Field
The application relates to the technical field of cables, and more particularly relates to a low-voltage fire-resistant cable with a fireproof structure.
Background
The fire-resistant cable is characterized in that when a fire accident occurs, the cable can continuously supply power under the condition that external flame is still burnt, so that fire-fighting equipment and facilities can keep normal operation within a time not lower than a design rule, and when the fire accident occurs, the fire-resistant cable is required to bear the high temperature of an accident scene, and also is required to bear the spray water of a fire-fighting automatic fire extinguishing system and possible impact of fire falling objects.
The traditional fire-resistant cable is characterized in that a conductor is coated by a high-temperature resistant insulating material, so that the cable keeps insulation of a core wire under a high-temperature environment condition, and meanwhile, a metal sheath is arranged on the periphery of a cable core to improve shock resistance and vibration energy. The fire-resistant structure adopts a passive isolation type, namely, a cable core is externally covered with a plurality of layers of fire-resistant belts, fire-resistant mud or other ceramic shell-forming materials, and when the external flame is high in temperature, the fire-resistant belts are used for blocking the fire-resistant layers, and the internal temperature of the cable core is far lower than the temperature of a fire scene, so that the electrical performance of the cable is ensured. However, the passive fire-resistant structure greatly increases the outer diameter of the cable, and the cable is more heavy and inconvenient to construct.
Disclosure of Invention
In view of the above, the present application proposes a low voltage fire resistant cable with a fire protection structure to ameliorate the above problems.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a low pressure fire-resistant cable with fire-proof structure, includes the cable body, the cable body is from outside to inside in proper order by protective layer and cable core composition, the internally mounted of cable core has the functional layer, it has center to fill between functional layer and the cable core, the functional layer is conductor, insulating layer, metal plastic composite sheath from center outside structure in proper order, around the parcel has the ribbon between cable core and the protective layer, the equal fixed mounting in left and right sides of cable body has watertight terminal, one side fixed mounting of watertight terminal has the electric control valve, the right side draw forth insulating core in the watertight terminal, and the one end that the watertight terminal was kept away from to insulating core inserts distribution facility or equipment, the right side the water pipe of drawing forth in the watertight terminal is through electric control valve fixedly connected with fire control pipe, and left side the intercommunication has the storage water tank between watertight terminal and the electric control valve, and the top of storage water tank is equipped with the overflow mouth, the inside fixed mounting of storage water tank has the level gauge.
Optionally, the protective layer has set gradually oversheath, interlocking armor, polyethylene sheath from outside to inside, polyethylene sheath's inner wall cup joints with the outer wall of ribbon.
Optionally, the ribbon is located between the metal plastic composite sheath and the polyethylene sheath, and the inside and the outside of the ribbon are filled with water.
Optionally, the metal belt in the metal plastic composite sheath is set as an aluminum plastic composite belt or a copper plastic composite belt.
Optionally, the material of the interlocking armor layer is provided as an aluminum tape, an aluminum alloy tape, a stainless steel tape or other metal tape.
Optionally, the watertight terminal on the left side is installed at a higher altitude than the watertight terminal on the right side.
Optionally, the number of the electric control valves is two, one electric control valve is installed on one side of the watertight terminal on the left side, and the other electric control valve is installed on one side of the watertight terminal on the right side.
The application provides a low pressure fire-resistant cable with fire-proof structure possesses following beneficial effect:
1. this application is through the cooperation between cable core, ribbon and the functional layer, thereby adopts the mode of water injection between cable core and the polyethylene sheath, thereby makes cable core temperature keep lower level circuit voltage drop lower, simultaneously, when the cable body runs into local high temperature and causes oversheath and interlocking armor cohesion sheath damage, rivers in the cable core have part through damage department and interlocking armor's gap overflow, can play the effect of spraying to put out a fire, has solved the passive problem of cable body fire-resistant structure effectively.
2. The cable core, the polyethylene sheath, the interlocking armor and the outer sheath are matched, the side pressure resistance and impact resistance of the cable body are improved by the aid of the polyethylene sheath, the interlocking armor and the outer sheath, the problem that the cable body is damaged after being impacted by external force is effectively solved, and the cable is small in outer diameter and common cable difference and easy to lay.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a cross-sectional view of a cable body of the present application;
fig. 2 shows a front view of the fire hose of the present application.
In the figure: 1. a conductor; 2. an insulating layer; 3. a metal plastic composite sheath; 4. filling the center; 5. a tie; 6. a polyethylene sheath; 7. interlocking armor layers; 8. an outer sheath; 9. a water storage tank; 10. a liquid level gauge; 11. an electric control valve; 12. a cable body; 13. an insulated wire core; 14. watertight terminals; 15. fire-fighting water pipe.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a low pressure fire-resistant cable with fire-proof structure, including cable body 12, cable body 12 is from outside to inside in proper order by protective layer and cable core composition, the setting of protective layer plays the protection to the cable core, the internally mounted of cable core has the functional layer, the setting of functional layer has waterproof fender damp's effect, it has center packing 4 to fill between functional layer and the cable core, center packing 4 adopts water repellent structure, the structure that the functional layer is from center outside is conductor 1 in proper order, insulating layer 2, metal plastic composite sheath 3, conductor 1, insulating layer 2, metal plastic composite sheath 3, center packing 4 and the setting of ribbon 5 play the water proof effect when the inside water filling of cable body 12, around the parcel between cable core and the protective layer has ribbon 5, the ribbon 5 clearance is around the package with many conductors 1 of waterproof fender damp structure, insulating layer 2, metal plastic composite sheath 3 transposition is fixed into the cable core, the cable core is loosely sleeved and extruded with a layer of polyethylene sheath 6 in a pipe extruding mode, the left side and the right side of the cable body 12 are fixedly provided with watertight terminals 14, one side of each watertight terminal 14 is fixedly provided with an electric control valve 11, the arrangement of each electric control valve 11 controls water flow at the watertight terminals 14, an insulating wire core 13 is led out of each watertight terminal 14 on the right side, one end of each insulating wire core 13 far away from each watertight terminal 14 is connected with a power distribution facility or equipment, the installation of each insulating wire core 13 is connected with each watertight terminal 14 and the power distribution facility or equipment, a water pipe led out of each watertight terminal 14 on the right side is fixedly connected with a fire water pipe 15 through each electric control valve 11, a water storage tank 9 is communicated between the watertight terminal 14 on the left side and the electric control valve 11, the top of each water storage tank 9 is provided with an overflow port, when the water storage tank 9 overflows, the cable body 12 is cooled, the inside of the water storage tank 9 is fixedly provided with a liquid level meter 10, and the liquid level meter 10 senses the water level inside the water storage tank 9.
The protective layer has set gradually oversheath 8, interlocking armor 7, polyethylene sheath 6 from outside to inside, and the inner wall of polyethylene sheath 6 cup joints with the outer wall of ribbon 5, and polyethylene sheath 6 installs between ribbon 5 and interlocking armor 7 to, installation of oversheath 8, interlocking armor 7, polyethylene sheath 6 plays anti side pressure and impact resistance to cable body 12.
The ribbon 5 is located between the metal plastic composite sheath 3 and the polyethylene sheath 6, water is filled inside and outside the ribbon 5, the ribbon 5 adopts a gap wrapping mode, and the water can be filled to cool the cable body 12.
The metal belt in the metal plastic composite sheath 3 is set as an aluminum plastic composite belt or a copper plastic composite belt.
The material of the interlocking armor 7 is provided as an aluminum tape, an aluminum alloy tape, a stainless steel tape, or other metal tape.
The left watertight terminals 14 are installed at a higher altitude than the right watertight terminals 14, and the left watertight terminals 14 and the right watertight terminals 14 are respectively positioned at the left end and the right end of the cable body 12.
The number of the electronic control valves 11 is two, one of the electronic control valves 11 is installed at one side of the watertight terminal 14 on the left side, and the other electronic control valve 11 is installed at one side of the watertight terminal 14 on the right side.
In summary, when the low-voltage fire-resistant cable with fireproof structure is used, firstly, open the automatically controlled valve 11 of right side altitude lower side and fill water to cable body 12 cable core, close automatically controlled valve 11 of altitude lower side when reaching preset position until the water level in storage water tank 9, the cable is in daily running state, then, when cable body 12 route of laying takes place the conflagration accident, fire alarm signal triggers automatically controlled valve 11 of right side altitude lower side of cable body 12 and is in open state, fire water passes through cable core of cable body 12 and overflows up to storage water tank 9, cool down for cable body 12, if the condition of a fire violently melts out the hole with oversheath 8 and polyethylene sheath 6 of cable body 12, fire water will spray through interlocking armor 7, finally, when cable body 12 breaks and leads to fire water can not reach 9, the water level in storage water tank 9 will descend fast, at this moment, level gauge 10 in storage water tank 9 sends out control signal trigger automatically controlled valve 11 of left side altitude higher side of cable body 12 and is in open state, cable body 12 is in the cable core is in the continuous water supply state of guaranteeing, thereby the water-cooling in the water storage tank is guaranteed, the water-cooled down state is guaranteed, and is in the continuous in the water-cooled state.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. A low voltage fire resistant cable with fire protection construction, comprising a cable body (12), characterized in that: the cable body (12) is from outside to inside in proper order by protective layer and cable core composition, the internally mounted of cable core has the center to fill (4) between functional layer and the cable core, the functional layer is conductor (1), insulating layer (2), metal plastic composite sheath (3) in proper order from outside the center, around parcel has ribbon (5) between cable core and the protective layer, the equal fixed mounting in left and right sides of cable body (12) has watertight terminal (14), one side fixed mounting of watertight terminal (14) has automatically controlled valve (11), the right side draw forth insulating core (13) in watertight terminal (14), and the one end that watertight terminal (14) were kept away from to insulating core (13) inserts distribution facility or equipment, the right side the water pipe that draws forth in watertight terminal (14) is through automatically controlled valve (11) fixedly connected with fire hose (15), left side between watertight terminal (14) and automatically controlled valve (11) intercommunication has storage water tank (9), and the top of (9) is equipped with overflow mouth, the inside liquid level gauge of storage water tank (9) is fixed.
2. A low voltage fire resistant cable with fire protection construction according to claim 1 wherein: the protective layer is provided with an outer sheath (8), an interlocking armor layer (7) and a polyethylene sheath (6) from outside to inside in sequence, and the inner wall of the polyethylene sheath (6) is sleeved with the outer wall of the ribbon (5).
3. A low voltage fire resistant cable with fire protection construction according to claim 1 wherein: the ribbon (5) is positioned between the metal plastic composite sheath (3) and the polyethylene sheath (6), and the inside and the outside of the ribbon (5) are filled with water.
4. A low voltage fire resistant cable with fire protection construction according to claim 1 wherein: the metal belt in the metal plastic composite sheath (3) is arranged as an aluminum plastic composite belt or a copper plastic composite belt.
5. A low voltage fire resistant cable with fire protection construction according to claim 2 wherein: the interlocking armor layer (7) is made of aluminum strips, aluminum alloy strips, stainless steel strips or other metal strips.
6. A low voltage fire resistant cable with fire protection construction according to claim 1 wherein: the watertight terminal (14) on the left side is installed at a higher altitude than the watertight terminal (14) on the right side.
7. A low voltage fire resistant cable with fire protection construction according to claim 1 wherein: the number of the electric control valves (11) is two, one electric control valve (11) is arranged on one side of the watertight terminal (14) on the left side, and the other electric control valve (11) is arranged on one side of the watertight terminal (14) on the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320760795.0U CN220710000U (en) | 2023-04-07 | 2023-04-07 | Low-voltage fire-resistant cable with fireproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320760795.0U CN220710000U (en) | 2023-04-07 | 2023-04-07 | Low-voltage fire-resistant cable with fireproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220710000U true CN220710000U (en) | 2024-04-02 |
Family
ID=90436596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320760795.0U Active CN220710000U (en) | 2023-04-07 | 2023-04-07 | Low-voltage fire-resistant cable with fireproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220710000U (en) |
-
2023
- 2023-04-07 CN CN202320760795.0U patent/CN220710000U/en active Active
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