Building curtain wall with flame-retardant function
By combining a heat-conducting network pipe and a phase change block structure with paraffin sealing and phenolic foam materials, the problem of easy explosion and combustion of building curtain walls at high temperatures is solved, achieving effective flame retardancy and heat insulation effects, and ensuring building safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN GANGSHENG CONSTR ENG CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-24
AI Technical Summary
Some components of existing building curtain walls, such as fireproof glass, are prone to explosion and combustion at high temperatures, posing safety hazards to high-rise buildings, and there is a lack of effective flame-retardant and heat-insulating measures.
It adopts a combination structure of heat-conducting mesh and phase change block, combined with paraffin sealing box and phenolic foam material. The heat is guided by the heat-conducting mesh and cooled by the phase change block. Paraffin absorbs heat through phase change within a specific temperature range, and combined with flame-retardant coating, it forms a multi-layer protection.
It effectively prevents combustion and reduces the surface temperature of materials, slows down the combustion process, provides early fire warnings and multi-layer protection, and ensures building safety.
Smart Images
Figure CN224161267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building curtain wall technology, and in particular to a building curtain wall with flame-retardant function. Background Technology
[0002] Some components in existing building curtain walls, such as fire-resistant glass (including cesium potassium glass), pose a risk of spontaneous explosion or are highly susceptible to deflagration after being exposed to high summer temperatures, which has extremely adverse effects on high-rise buildings. Therefore, there is an urgent need for a building curtain wall that can effectively prevent combustion or provide effective heat insulation in the event of combustion. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art and achieve the above-mentioned functions, this utility model provides a building curtain wall with flame-retardant function.
[0004] This utility model is achieved through the following technical solution:
[0005] A flame-retardant building curtain wall includes a heat insulation board fixed to the back of the curtain wall panel. A grooved plate is installed on the back of the heat insulation board. The grooved plate is hollow and has a built-in heat-conducting mesh pipe. The heat-conducting mesh pipe is fixed to the heat insulation board. A phase change block is provided in each grid of the heat-conducting mesh pipe.
[0006] The longitudinal support at the top of the heat-conducting mesh extends into the paraffin seal above, and the paraffin seal is welded to the groove plate to ensure there are no gaps.
[0007] Furthermore, the heat insulation board is provided with a number of through-holes running from front to back, and the cross-shaped intersection of the heat-conducting mesh tube is welded with a horizontal support head facing forward and corresponding to the mesh holes. The other end of the horizontal support head does not pass through the heat insulation board and abuts against the back of the curtain wall panel.
[0008] Furthermore, the hollow inner cavity of the trough plate is sealed by a back plate, and limit posts are provided at the four corners of the back plate relative to each phase change block, through which each phase change block is passed.
[0009] Furthermore, the paraffin box is sealed and the top is sealed with a cover plate.
[0010] Furthermore, the paraffin wax in the paraffin-sealed box accounts for 80% of the total volume.
[0011] Furthermore, a sealing sheet is provided between the groove plate and the heat insulation plate, and the horizontal support of the heat-conducting mesh pipe passes through the corresponding through hole on the sealing sheet.
[0012] Furthermore, channel steels fixed to the exterior of the building are installed on both sides of the channel plate, and the channel steels are also fixed to the back of the heat insulation board.
[0013] Furthermore, the inner layer of the insulation board is a metal sheet, the outer layer is phenolic foam, and the end face of the board connected to the curtain wall panel is coated with a non-intumescent flame-retardant coating.
[0014] The beneficial effects of this utility model are:
[0015] This invention actively lowers the temperature of an object through guided cooling, disrupting the temperature conditions required for combustion, thereby slowing down or stopping the combustion process. When heated, flame-retardant materials absorb heat and deform or release water vapor, effectively reducing the surface temperature and inhibiting combustion. This invention employs a grid-type heat-guiding structure, and the rear-mounted cooling phase change component provides excellent flame-retardant performance. Paraffin wax is used, with a phase change temperature range designed to be 180℃-200℃. This range closely matches the early warning temperature for building curtain wall fires (typically 150℃-250℃), ensuring that an endothermic reaction is triggered in the initial stages of a fire. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram after the curtain wall panels have been removed;
[0018] Figure 3 This is a schematic diagram of the back of the groove plate;
[0019] Figure 4 This is a schematic diagram of the internal structure of the slot plate;
[0020] Figure 5 This is a schematic diagram of the structure of the heat-conducting network pipe and its components;
[0021] Figure 6 A schematic diagram of the heat-conducting network pipe and its components from another perspective;
[0022] In the picture:
[0023] 1. Curtain wall panel, 2. Insulation board, 201. Mesh, 3. Cover plate, 301. Paraffin wax seal, 4. Channel plate, 401. Back plate, 5. Heat-conducting mesh pipe, 501. Longitudinal support, 502. Horizontal support, 6. Phase change block, 601. Limiting column, 7. Sealing sheet, 8. Channel steel. Detailed Implementation
[0024] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments thereof. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings herein can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0026] like Figures 1 to 6 As shown, this utility model includes a heat insulation plate 2 fixed to the back of the curtain wall panel 1 to isolate high temperature and reduce the probability of fire in other areas. A groove plate 4 is installed on the back of the heat insulation plate 2. The groove plate 4 is hollow and has a built-in heat-conducting mesh pipe 5. The heat-conducting mesh pipe 5 is fixed to the heat insulation plate 2. As shown in the figure, it can be fixed by plugging. Each grid of the heat-conducting mesh pipe 5 is provided with a phase change block 6. The heat-conducting mesh pipe can be made of copper pipe.
[0027] The longitudinal support 501 at the top of the heat-conducting mesh pipe 5 extends into the paraffin wax box 301 above, which is used to absorb heat and melt into liquid to achieve a cooling effect. The paraffin wax box 301 is welded to the groove plate 4 to prevent gaps and leakage of paraffin wax raw materials.
[0028] The heat insulation board 2 is provided with a number of through mesh holes 201. The heat-conducting mesh pipe 5 has a horizontal support head 502 welded at the cross intersection, facing forward and corresponding to the mesh holes 201. The heat insulation board 2 can play a role in flame retardancy and heat insulation, while the heat-conducting mesh pipe 5 will guide the heat in front to dissipate heat to the back. The other end of the horizontal support head 502 does not pass through the heat insulation board 2 and abuts against the back of the curtain wall panel 1, serving as the starting end of heat conduction.
[0029] The hollow inner cavity of the slot plate 4 is sealed by the back plate 401. Limiting posts 601 are provided at the four corners of the back plate 401 relative to each phase change block 6. Each phase change block 6 is passed through by the limiting posts 601. Each phase change block 6 will deform and cool down due to the heat conduction of the surrounding heat conduction network pipe 5.
[0030] The paraffin box 301 is sealed and its top is sealed by the cover plate 3.
[0031] The paraffin seal 301 contains 80% paraffin wax in its total volume to prevent it from overflowing after liquefaction.
[0032] A sealing sheet 7 is provided between the groove plate 4 and the heat insulation plate 2 to ensure the airtightness of the gap between the groove plate 4. At the same time, the sealing sheet 7 can be made of ordinary rubber material, which also has a certain heat insulation effect. The horizontal support 502 of the heat conduction mesh pipe 5 passes through the corresponding through hole on the sealing sheet 7.
[0033] The inner layer of the insulation board 2 is a metal sheet, and the outer layer is phenolic foam, achieving a B1 rating (flame retardant). It requires no added flame retardants, does not melt or drip at high temperatures, and does not release toxic gases. The end face of the insulation board 2, which is in contact with the curtain wall panel 1, is coated with a non-intumescent flame-retardant coating to prevent the spread of flames.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A building curtain wall with flame-retardant function, characterized in that: Includes a heat insulation board (2) fixed to the back of the curtain wall panel (1), a grooved plate (4) is installed on the back of the heat insulation board (2), the grooved plate (4) is hollow and has a heat-conducting mesh (5) inside, the heat-conducting mesh (5) is fixed on the heat insulation board (2), and each grid of the heat-conducting mesh (5) is provided with a phase change block (6). The longitudinal support (501) at the top of the heat-conducting mesh (5) extends into the paraffin box (301) above, and the paraffin box (301) is welded to the groove plate (4) so that there is no gap.
2. The architectural curtain wall with a fire-retardant function according to claim 1, characterized in that: The heat insulation board (2) is provided with a number of mesh holes (201) that run through the front and back. The heat-conducting mesh pipe (5) is welded with a horizontal support (502) facing forward and corresponding to the mesh hole (201) at the cross intersection. The other end of the horizontal support (502) does not pass through the heat insulation board (2) and abuts against the back of the curtain wall panel (1).
3. The architectural curtain wall with a fire-retardant function according to claim 1, characterized in that: The hollow inner cavity of the slot plate (4) is sealed by the back plate (401). Limiting posts (601) are provided at the four corners of the back plate (401) relative to each phase change block (6). Each phase change block (6) is passed through by the limiting posts (601).
4. The architectural curtain wall with a fire-retardant function according to claim 1, characterized in that: The paraffin box (301) is sealed and the top is sealed by a cover plate (3).
5. The architectural curtain wall with a fire-retardant function according to claim 4, characterized in that: The paraffin wax in the paraffin-sealed box (301) accounts for 80% of the total volume.
6. The architectural curtain wall with a fire-retardant function according to claim 2, characterized in that: A sealing sheet (7) is provided between the groove plate (4) and the heat insulation plate (2), and the horizontal support (502) of the heat-conducting mesh pipe (5) passes through the corresponding through hole on the sealing sheet (7). 7.The building curtain wall with a fire-retardant function according to claim 1, characterized in that: Channel steel (8) fixed to the outside of the building is installed on both sides of the channel plate (4), and the channel steel (8) is also fixed to the back of the heat insulation plate (2). 8.The building curtain wall with a fire-retardant function according to claim 1, characterized in that: The inner layer of the heat insulation board (2) is a metal plate, the outer layer is phenolic foam, and the end face of the board connected to the curtain wall panel (1) is coated with a non-expanding flame-retardant coating.