CN220747234U - Thermal insulation fireproof steel - Google Patents
Thermal insulation fireproof steel Download PDFInfo
- Publication number
- CN220747234U CN220747234U CN202322418159.2U CN202322418159U CN220747234U CN 220747234 U CN220747234 U CN 220747234U CN 202322418159 U CN202322418159 U CN 202322418159U CN 220747234 U CN220747234 U CN 220747234U
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- heat
- insulating
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- steel
- reinforcing plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 86
- 239000010959 steel Substances 0.000 title claims abstract description 86
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 58
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000004964 aerogel Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920006327 polystyrene foam Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 230000009970 fire resistant effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of steel, in particular to heat-preservation fireproof steel. The heat-insulating fireproof steel comprises a steel body and further comprises a heat-insulating mechanism arranged inside the steel body, wherein the heat-insulating mechanism comprises a reinforcing plate, a cylinder, a heat-insulating cavity and a first heat-insulating layer, one end of the reinforcing plate is fixedly connected with the steel, the other end of the reinforcing plate is fixedly connected with the cylinder, a communicating hole is formed in the reinforcing plate, the steel body and the cylinder form the heat-insulating cavity, and the first heat-insulating layer is arranged in the heat-insulating cavity; the steel body is provided with a bolt hole, the end part of the bolt hole is provided with a heat insulation block, the part of the heat insulation block extending out of the heat insulation cavity forms a stop block, and a first heat insulation layer is paved on the outer surface of the stop block; the outer surface of the steel body is provided with an anti-corrosion layer, a fireproof layer and a third heat preservation layer from outside to inside. The closed heat preservation cavity formed by the steel body, the reinforcing plate, the cylinder and the communication hole can not generate larger temperature difference in the steel body, so that cold bridge phenomenon can not be generated.
Description
Technical Field
The utility model relates to the technical field of steel, in particular to heat-preservation fireproof steel.
Background
The steel structure is a structure composed of steel materials, and mainly comprises steel beams, steel columns, steel trusses and other members made of steel sections, steel plates and the like. The components or the parts are connected by adopting welding seams, bolts or rivets, and the self-weight of the components or the parts is light, and the construction is simple, so that the components or the parts are widely applied to the fields of large-scale plants, venues, super high-rise buildings, bridges and the like.
When the heat conduction is carried out between the outer protecting structure of the building and the outside, the heat transfer coefficient of steel in the protecting structure is obviously larger than that of other parts, when the temperature difference of two sides of the building is high, heat is intensively and rapidly transferred from the steel, the local temperature drops suddenly, hot air at the high temperature side is cooled, condensed water is generated on the surface, the condensed water rusts the steel to influence the structural strength, and the condensed water can also damp coatings such as heat preservation, fire prevention and the like of the steel to influence the service life of the steel.
Disclosure of Invention
The utility model aims to provide a heat-insulating fireproof steel material to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the heat-insulating fireproof steel comprises a steel body and further comprises a heat-insulating mechanism arranged inside the steel body, wherein the heat-insulating mechanism comprises a reinforcing plate, a cylinder, a heat-insulating cavity and a first heat-insulating layer, one end of the reinforcing plate is fixedly connected with the steel body, the other end of the reinforcing plate is fixedly connected with the cylinder, a communicating hole is formed in the reinforcing plate, the steel body and the cylinder form the heat-insulating cavity, and the first heat-insulating layer is arranged in the heat-insulating cavity; the steel body is provided with a bolt hole, the end part of the bolt hole is provided with a heat insulation block, the part of the heat insulation block extending out of the heat insulation cavity forms a stop block, and a first heat insulation layer is paved on the outer surface of the stop block; the outer surface of the steel body is provided with an anti-corrosion layer, a fireproof layer and a third heat preservation layer from outside to inside.
Further, the section of the steel body is round, and the section of the joint of the reinforcing plate, the steel body and the cylinder is round.
Further, the cross section of the joint of the stop block and the heat preservation cavity is a round angle, and soft heat preservation cotton is paved between the stop block and the first heat preservation layer.
Further, the heat preservation mechanism further comprises a second heat preservation layer, and the second heat preservation layer is arranged on the outer surface of the first heat preservation layer.
Further, the first heat preservation layer, the second heat preservation layer and the third heat preservation layer are aerogel felts.
Further, the heat insulation block material is a polystyrene foam board or a polyurethane foam board.
Further, the fireproof layer is an ultrathin steel structure fireproof coating. When receiving fire, the steel material expands and foams to form a compact fireproof heat-insulating layer, and the temperature rise of the steel material is delayed.
Further, the anti-corrosion layer is acrylic polyurethane finish paint.
In the technical scheme, the heat-insulating fireproof steel has the beneficial effects that:
1. the closed heat preservation cavity formed by the steel body, the reinforcing plate, the cylinder and the communication hole has lower heat conductivity than steel in the closed space communicated with the inside of the heat preservation cavity, so that the temperature in the heat preservation cavity is kept stable, and a larger temperature difference can not be generated in the steel body, thereby avoiding cold bridge phenomenon.
2. Through restricting the inside cross-section of steel body to be circular, the reinforcing plate is round angle with the junction cross-section of steel body and drum so that first heat preservation can not produce the gap because of the corner when laying, has effectively promoted cold-proof effect.
3. Local cold bridge phenomenon caused by paving head-to-tail joints on the first heat preservation layer is avoided through peak staggering lap joint of the first heat preservation layer and the second heat preservation layer.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a cross-sectional view of a steel material according to an embodiment of the present utility model;
fig. 2 is a partial enlarged view of a according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a steel body; 2. a reinforcing plate; 3. a cylinder; 4. a heat preservation cavity; 5. a first heat-retaining layer; 6. a second heat-insulating layer; 7. bolt holes; 8. a heat insulating block; 9. thermal insulation cotton; 10. a fire-blocking layer; 11. an anti-corrosion layer; 12. a third heat-insulating layer; 13. a communication hole; 14. and a stop block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Referring to fig. 1-2, a heat-insulating fireproof steel comprises a steel body 1 and further comprises a heat-insulating mechanism arranged inside the steel body 1, wherein the heat-insulating mechanism comprises a reinforcing plate 2, a cylinder 3, a heat-insulating cavity 4 and a first heat-insulating layer 5, one end of the reinforcing plate 2 is fixedly connected with the steel body 1, the other end of the reinforcing plate 2 is fixedly connected with the cylinder 3, the cylinder 3 can be externally connected with a water source, water is introduced after a fire disaster occurs to absorb heat of the steel, the heating speed of the steel is delayed, a fireproof protection effect is achieved, a communication hole 13 is formed in the reinforcing plate 2, the steel body 1 and the cylinder 3 form a heat-insulating cavity 4, the heat-insulating cavity 4 is communicated through the communication hole 13 in the reinforcing plate 2, the heat-insulating cavity 4 is internally provided with the first heat-insulating layer 5, and the heat conductivity of a closed space communicated inside the heat-insulating cavity 4 is lower, so that the temperature in the heat-insulating cavity 4 is kept stable, and a large temperature difference cannot be generated inside the steel body 1, and a cold bridge phenomenon cannot be generated; the bolt holes 7 are reserved on the steel for convenient positioning and connection, the end parts of the bolt holes 7 are provided with heat insulation blocks 8, the heat insulation blocks 8 can prevent the phenomenon that heat is rapidly transferred through bolts to form a local cold bridge, the part of the heat insulation blocks 8 extending out of the heat insulation cavity 4 forms a stop block 14, and the outer surface of the stop block 14 is paved with a first heat insulation layer 5; the outer surface of the steel body is provided with an anti-corrosion layer 11, a fireproof layer 10 and a third heat preservation layer 12 from outside to inside.
In the embodiment provided by the utility model, the internal section of the steel body 1 is circular, the sections of the joints of the reinforcing plate 2, the steel body 1 and the cylinder 3 are all round angles, the first heat preservation layer 5 can be continuously paved without being limited by the corners, and meanwhile, gaps are avoided when the first heat preservation layer 5 is paved at the corners, so that the heat preservation effect is influenced.
In the embodiment provided by the utility model, the cross section of the joint of the stop block 14 and the heat preservation cavity 4 is a round angle, when the first heat preservation layer 5 is paved on the stop block 14, a gap exists between the stop block 14 and the heat preservation cavity, the first heat preservation layer 5 is compressed, the heat preservation effect of the stop block 14 is poor, and soft heat preservation cotton 9 is paved between the stop block 14 and the first heat preservation layer 5, so that the heat preservation effect of the stop block 14 can be improved.
In the embodiment provided by the utility model, the heat preservation mechanism further comprises the second heat preservation layer 6, the first heat preservation layer 5 is paved at the joint of the head and the tail, the local cold bridge phenomenon is easy to occur, the second heat preservation layer 6 is arranged on the outer surface of the first heat preservation layer 5 and is overlapped with the first heat preservation layer 5 in a staggered joint manner, and heat loss caused by the joint of the first heat preservation layer 5 can be reduced.
In the embodiment provided by the utility model, the first heat preservation layer 5, the second heat preservation layer 6 and the third heat preservation layer 12 are aerogel felts, and the aerogel felts have small heat conductivity and are ideal heat preservation materials.
In the embodiment provided by the utility model, the heat insulation block 8 is made of a polystyrene foam board or a polyurethane foam board, and the heat conductivity coefficient of the material is smaller, so that the cold bridge phenomenon can not be generated.
In the embodiment provided by the utility model, the fireproof layer 10 is an ultrathin steel structure fireproof coating, and the ultrathin steel structure fireproof coating expands and foams to form a compact fireproof heat insulation layer when being subjected to fire, so that the temperature rise of steel is delayed, the fireproof limit of the steel is improved to 0.5-1.5 hours, and the usable time for people evacuation is prolonged when a fire disaster occurs.
In the embodiment provided by the utility model, the anti-corrosion layer 11 is acrylic polyurethane finish paint, so that the steel is prevented from being corroded by moisture in air in long-term use, and the structural strength is prevented from being influenced.
Working principle: the closed heat preservation cavity 4 formed by the steel body, the reinforcing plate 2, the cylinder 3 and the communication hole 13 has lower heat conductivity than steel in the closed space communicated with the inside of the heat preservation cavity 4, so that the temperature in the heat preservation cavity 4 is kept stable, and a larger temperature difference can not be generated in the steel body 1, thereby avoiding cold bridge phenomenon. In addition, the outer surface of the steel main body is sequentially paved with an anti-corrosion layer 11, a fireproof layer 10 and a third heat-insulating layer 12 from outside to inside, so that the heat-insulating and fireproof capabilities of the steel can be further improved.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (8)
1. The utility model provides a heat preservation fire prevention steel, includes steel body (1), its characterized in that: the heat preservation mechanism comprises a reinforcing plate (2), a cylinder (3), a heat preservation cavity (4) and a first heat preservation layer (5), wherein one end of the reinforcing plate (2) is fixedly connected with the steel body (1), the other end of the reinforcing plate (2) is fixedly connected with the cylinder (3), a communication hole is formed in the reinforcing plate (2), the steel body (1) and the cylinder (3) form the heat preservation cavity (4), and the first heat preservation layer (5) is arranged in the heat preservation cavity (4);
the steel body (1) is provided with a bolt hole (7), the end part of the bolt hole (7) is provided with a heat insulation block (8), a part of the heat insulation block (8) extending towards the heat insulation cavity (4) forms a stop block (14), and a first heat insulation layer (5) is paved on the outer surface of the stop block (14);
the outer surface of the steel body is provided with an anti-corrosion layer (11), a fireproof layer (10) and a third heat preservation layer (12) from outside to inside.
2. The heat-insulating fireproof steel material according to claim 1, wherein the section of the steel material body (1) is circular, and the sections of the joints of the reinforcing plate (2) with the steel material body (1) and the cylinder (3) are round angles.
3. The heat-insulating fireproof steel material according to claim 1, wherein the cross section of the joint of the stop block (14) and the heat-insulating cavity (4) is a round angle, and soft heat-insulating cotton (9) is paved between the stop block (14) and the first heat-insulating layer (5).
4. A heat insulating and fireproof steel material according to claim 1 or 3, characterized in that the heat insulating mechanism further comprises a second heat insulating layer (6), the second heat insulating layer (6) being arranged on the outer surface of the first heat insulating layer (5).
5. The heat-insulating fireproof steel material according to claim 1, wherein the first heat-insulating layer (5), the second heat-insulating layer (6) and the third heat-insulating layer (12) are aerogel felts.
6. A heat insulating fireproof steel material according to claim 1, characterized in that the heat insulating block (8) is made of polystyrene foam board or polyurethane foam board.
7. A heat-insulating fire-resistant steel material according to claim 1, characterized in that the fire-resistant layer (10) is an ultra-thin steel structure fire-resistant paint.
8. A heat-insulating fireproof steel material according to claim 1, characterized in that the anti-corrosion layer (11) is an acrylic polyurethane top-coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322418159.2U CN220747234U (en) | 2023-09-06 | 2023-09-06 | Thermal insulation fireproof steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322418159.2U CN220747234U (en) | 2023-09-06 | 2023-09-06 | Thermal insulation fireproof steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220747234U true CN220747234U (en) | 2024-04-09 |
Family
ID=90551883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322418159.2U Active CN220747234U (en) | 2023-09-06 | 2023-09-06 | Thermal insulation fireproof steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220747234U (en) |
-
2023
- 2023-09-06 CN CN202322418159.2U patent/CN220747234U/en active Active
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