CN218712190U - Fireproof inhaul cable - Google Patents
Fireproof inhaul cable Download PDFInfo
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- CN218712190U CN218712190U CN202222786191.1U CN202222786191U CN218712190U CN 218712190 U CN218712190 U CN 218712190U CN 202222786191 U CN202222786191 U CN 202222786191U CN 218712190 U CN218712190 U CN 218712190U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a fireproof inhaul cable, which comprises a cable body and a protective sleeve, wherein an inner protective layer with fireproof or heat-insulating function is arranged on the inner side surface of the protective sleeve, and an outer protective layer with fireproof or heat-insulating function is arranged on the outer side surface of the protective sleeve; arranging a support net according to the requirement of the fire-proof layer, wherein the support net is arranged in the inner protective layer, or in the outer protective layer, or in both the inner protective layer and the outer protective layer; the cable body is arranged in the pipe cavity of the protective sleeve, and a gap is reserved between the outer side surface of the cable body and the surface of the inner protective layer. The utility model discloses possess two-layer independent protective structure, form outer fire prevention, inlayer thermal-insulated or outer and inlayer fire prevention, thermal-insulated protective structure simultaneously, satisfy the user demand of different occasions, in addition, this protective structure is convenient for mill and is prefabricated to can realize the on-the-spot installation of cable body and protective structure.
Description
Technical Field
The utility model belongs to the technical field of the span wire, especially a fire resistive construction of cable.
Background
One of the common failure modes of the stay cable in the use process is high-temperature failure, for example, in the case of fire, the high temperature generated by the combustion of inflammable substances in the environment can cause the performance of the cable body to be reduced sharply, and therefore, the design of a fireproof structure is an important factor of the stay cable design.
For example, a guy cable body with a fireproof shell (CN 214089482U, 2021-08-31) of the chinese utility model discloses a guy cable system with a fireproof shell, wherein a stainless steel sheath is added on the surface of the guy cable, a fireproof coating is sprayed on the inner wall of the sheath tube, and a partition is added between the inner wall of the sheath tube and the guy cable to ensure that there is enough space between the inner wall of the sheath tube and the guy cable, and when a fire occurs, the fireproof coating has enough expansion space to exert the fireproof effect. The structure can play roles of fire prevention and heat insulation only through the expansion of the fireproof coating on the inner wall of the protective sleeve, a large expansion space needs to be reserved, the long-time high-temperature environment is resisted, the thick fireproof coating is needed, the thickness of the fireproof coating is large, the coating in the expansion process is easy to fall off, and the cost is high.
For another example, in a combined type fireproof cable (CN 211312201U, 2020-08-21) of the chinese utility model, it is described that a flexible fireproof material is coated on the surface of the cable, then the sheath tube is nested, and the fireproof material is sprayed on the outer surface of the sheath tube, which has a double-layer fireproof structure and function, and can resist long-time high-temperature fire, but the inner and outer layers respectively adopt different fireproof structures, and the structure is complex, the construction is complicated, the efficiency is low, and the above fireproof structure design can only satisfy a single use occasion.
Disclosure of Invention
The utility model aims at providing a fire prevention cable possesses two-layer independent protective structure, forms outer fire prevention, inlayer thermal-insulated or outer and inlayer fire prevention, thermal-insulated protective structure simultaneously, satisfies the user demand of different occasions, and further, this protective structure is convenient for mill and is prefabricated to can realize the on-the-spot installation of the cable body and protective structure.
The technical scheme of the utility model as follows:
a fire-proof inhaul cable comprises a main body,
a cable body;
the fireproof cable comprises a protective sleeve, wherein an inner protective layer at least with a heat insulation function is arranged on the inner side surface of the protective sleeve, and an outer protective layer with a fireproof function is arranged on the outer side surface of the protective sleeve;
the supporting net is arranged in the inner protective layer, or in the outer protective layer, or in both the inner protective layer and the outer protective layer;
the cable body is arranged in the pipe cavity of the protective sleeve, and a gap is reserved between the outer side surface of the cable body and the surface of the inner protective layer.
It should be noted that the above "at least having heat insulation function" means that the main function is heat insulation, and when necessary, the inner protective layer may also have fire protection function, for example, a material having both heat insulation and fire protection is used as the inner protective layer; the term "at least having a fire-proof function" means that the main function is fire-proof, and when necessary, the outer protective layer may also have a heat-insulating function, for example, a material having both heat-insulating and fire-proof functions is used as the outer protective layer.
Alternatively, the cable body is a steel strand cable, a steel wire rope cable, a carbon fiber cable or a steel bar.
As an alternative to this, it is possible to provide,
the outer protective layer is a fireproof coating layer;
the inner protective layer is a heat insulation coating layer.
Alternatively, a supporting net is arranged in the fireproof coating layer as the outer protective layer, or a supporting net is arranged in the heat insulation coating layer as the inner protective layer, or both the fireproof coating layer as the outer protective layer and the heat insulation coating layer as the inner protective layer.
As an alternative to this, it is possible to provide,
the outer protective layer is a fireproof coating layer;
the inner protective layer is a fireproof heat insulation blanket or a fireproof heat insulation felt or heat insulation cotton.
As an alternative to this, the first and second,
and a supporting net is arranged in the fireproof coating layer as the outer protective layer.
Alternatively, the support mesh is a steel mesh, a stainless steel mesh, a copper mesh, a glass fiber mesh, or a carbon fiber mesh.
Compared with the prior art, the utility model discloses a fire prevention cable possesses following characteristics:
(1) The inner protective layer and the outer protective layer of the inhaul cable are integrated on the protective sleeve, the structure is simple, the modes of factory prefabrication and site installation can be realized, the quality is reliable, the construction efficiency is high, the gap between the outer side surface of the cable body and the surface of the inner protective layer is convenient for site installation of the cable body on one hand, and when the inner protective layer is made of an expansion type material, enough expansion space is provided for exerting performance on the other hand;
(2) When the proper outer and inner protective layers are selected, the fireproof inhaul cable can resist the high-temperature environment above 1100 ℃; when the cable received high temperature environment, outer inoxidizing coating was used for preventing the burning, played certain thermal-insulated effect, nevertheless the inside temperature of cable this moment still can rise gradually, because the inboard of cable protecting pipe is the insulating layer (also can have fire prevention function when needing), has played thermal-insulated effect, can further reduce the temperature on interior cable surface to guarantee the original mechanical properties of cable. The fireproof time and the fireproof function of the inhaul cable can be greatly improved through the fireproof and heat insulation of the inner protective layer and the outer protective layer; in addition, the inner protective layer and the outer protective layer are made of different fireproof heat-insulating materials according to specific fireproof requirements, so that the cost of the fireproof structure can be effectively reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a fire-retardant cable in which the outer surface and the inner surface of the sheath tube are respectively provided with a fire-retardant coating layer as an outer protective layer and an inner protective layer;
fig. 2 is a schematic cross-sectional view of a fire-resistant cable in which the outer surface of the sheathing tube uses a fire-resistant coating as an outer protective layer and the inner surface uses a fire-resistant heat-insulating blanket or a fire-resistant heat-insulating felt as an inner protective layer;
fig. 3 is a schematic cross-sectional view of a fire-retardant cable in which the outer surface and the inner surface of the sheath tube are respectively provided with a fire-retardant coating layer as an outer protective layer and an inner protective layer, wherein the fire-retardant coating layer as the outer protective layer includes a supporting net;
fig. 4 is a schematic cross-sectional view of a fire-retardant cable in which the outer surface of the protective sleeve uses a fire-retardant coating as an outer protective layer and the inner surface uses a fire-retardant heat-insulating blanket or a fire-retardant heat-insulating felt as an inner protective layer, wherein the fire-retardant coating as the outer protective layer includes a supporting net;
fig. 5 is a schematic cross-sectional view of a fire-retardant cable in which the outer surface and the inner surface of the sheath tube are respectively provided with a fire-retardant coating layer as an outer protective layer and an inner protective layer, wherein the fire-retardant coating layer as the inner protective layer includes a supporting net;
fig. 6 is a schematic cross-sectional view of a fire-retardant cable in which the outer surface and the inner surface of the sheath tube are respectively provided with a fire-retardant coating layer as an outer protective layer and an inner protective layer, wherein the fire-retardant coating layer as the outer protective layer includes a supporting net, and the fire-retardant coating layer as the inner protective layer includes a supporting net;
in the figure, 1-stay cable; 2-inner protective layer; 3, sheathing a pipe; 4-outer protective layer; 6-supporting the net.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the specific embodiments in the specification:
the first implementation mode comprises the following steps:
as shown in fig. 1, the fireproof inhaul cable comprises a cable body 1, an inner protective layer 2, a protective sleeve 3 and an outer protective layer 4.
The protective sleeve 3 is a conventional tubular structure with a cavity, the protective sleeve 3 is nested on the outer surface of the cable body 1 of the fireproof inhaul cable, fireproof paint (the fireproof paint needs to have a heat insulation function) is sprayed or coated on the inner wall of the protective sleeve 3 to form an inner protective layer 2, and a certain gap is formed between the inner protective layer 2 and the outer surface of the cable body 1; and spraying or brushing fire-proof paint on the outer side surface of the protective sleeve 3 to form an outer protective layer 4.
The second embodiment:
as shown in fig. 2, a fireproof heat insulation blanket, a fireproof heat insulation felt or a heat insulation cotton is adhered to or nested in the inner wall of the protective sleeve 3 to form an inner protective layer 2; the rest is the same as the first embodiment.
The third implementation mode comprises the following steps:
as shown in fig. 3, the outer surface of the protective sleeve 3 is coated or brushed with a fireproof paint to form an outer protective layer 4, and a supporting net 6 (dotted line in the figure) is added in the outer protective layer; the rest is the same as the first embodiment. In case of fire, the support screen 6 may enhance the stability of the fire-retardant coating layer in the outer protective layer 4.
The fourth embodiment:
as shown in fig. 4, the outer surface of the protective sleeve 3 is coated or brushed with a fireproof paint to form an outer protective layer 4, and a supporting net 6 (dotted line in the figure) is added in the outer protective layer 4; the rest is the same as the second embodiment. In case of fire, the support screen 6 may enhance the stability of the fire-retardant coating layer in the outer protective layer 4.
The fifth embodiment:
as shown in fig. 5, the inner wall of the protective sleeve 3 is coated or brushed with thermal insulation paint to form an inner protective layer 2, a certain gap is formed between the inner protective layer 2 and the outer surface of the cable body 1, and a supporting net 6 (dotted line in the figure) is added in the inner protective layer 2; the rest is the same as the first embodiment. In case of fire, the supporting net 6 can enhance the stability of the heat insulating coating layer of the inner protective layer 2.
Embodiment six:
as shown in fig. 6, the inner wall of the protective sleeve 3 is sprayed or painted with a heat insulation coating to form an inner protective layer 2, a certain gap is formed between the inner protective layer 2 and the outer surface of the cable body 1, and a supporting net 6 (dotted line in the figure) is added in the heat insulation coating layer of the inner protective layer 2; the outer surface of the protective sleeve 3 is sprayed or painted with fireproof paint to form an outer protective layer 4, and a supporting net 6 (dotted line in the figure) is added in the fireproof paint layer of the outer protective layer 4. The support net 6 can enhance the stability of the fireproof coating layer or the heat insulation coating layer when a fire disaster occurs.
The above are embodiments of the present invention, and various changes can be made by those skilled in the art on the basis of the above embodiments, and the object of the present invention can be achieved, but such changes should obviously be within the scope of the claims of the present invention.
Claims (7)
1. A fire prevention cable which is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a cable body (1);
the fireproof cable protecting pipe comprises a protecting pipe (3), wherein an inner protecting layer (2) at least having a heat insulation function is arranged on the inner side surface of the protecting pipe (3), and an outer protecting layer (4) at least having a fireproof function is arranged on the outer side surface of the protecting pipe (3);
the supporting net (6) is arranged in the inner protective layer (2), or in the outer protective layer (4), or in both the inner protective layer (2) and the outer protective layer (4);
the cable body (1) is arranged in the pipe cavity of the protective sleeve (3), and a gap is reserved between the outer side surface of the cable body (1) and the surface of the inner protective layer (2).
2. A fire protection cable as claimed in claim 1, wherein: the cable body (1) is a steel strand inhaul cable, a steel wire rope inhaul cable, a carbon fiber inhaul cable or a steel bar.
3. A fire protection cable as claimed in claim 1, wherein:
the outer protective layer (4) is a fireproof coating layer;
the inner protective layer (2) is a heat insulation coating layer.
4. A fire protection cable as claimed in claim 3, wherein: a supporting net (6) is arranged in the fireproof coating layer serving as the outer protective layer (4), or the supporting net (6) is arranged in the heat insulation coating layer serving as the inner protective layer (2), or the supporting net (6) is arranged in both the fireproof coating layer serving as the outer protective layer (4) and the heat insulation coating layer serving as the inner protective layer (2).
5. A fire protection cable as claimed in claim 1, wherein:
the outer protective layer (4) is a fireproof coating layer;
the inner protective layer (2) is made of fireproof heat insulation blankets or fireproof heat insulation felts or heat insulation cotton.
6. A fire protection cable as claimed in claim 5, wherein: a supporting net (6) is arranged in the fireproof coating layer as the outer protective layer (4).
7. A fire protection cable as claimed in claim 1, wherein: the support net (6) is a steel net, a stainless steel net, a copper net, a glass fiber net or a carbon fiber net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222786191.1U CN218712190U (en) | 2022-10-21 | 2022-10-21 | Fireproof inhaul cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222786191.1U CN218712190U (en) | 2022-10-21 | 2022-10-21 | Fireproof inhaul cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218712190U true CN218712190U (en) | 2023-03-24 |
Family
ID=85589621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222786191.1U Active CN218712190U (en) | 2022-10-21 | 2022-10-21 | Fireproof inhaul cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218712190U (en) |
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2022
- 2022-10-21 CN CN202222786191.1U patent/CN218712190U/en active Active
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