CN116446603A - Fireproof cornice with smoke filtering function - Google Patents
Fireproof cornice with smoke filtering function Download PDFInfo
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- CN116446603A CN116446603A CN202310578275.2A CN202310578275A CN116446603A CN 116446603 A CN116446603 A CN 116446603A CN 202310578275 A CN202310578275 A CN 202310578275A CN 116446603 A CN116446603 A CN 116446603A
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- hanging wall
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- 239000000779 smoke Substances 0.000 title claims abstract description 55
- 238000001914 filtration Methods 0.000 title claims abstract description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003546 flue gas Substances 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims description 198
- 239000011148 porous material Substances 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 13
- 230000007480 spreading Effects 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/15—Trimming strips; Edge strips; Fascias; Expansion joints for roofs
- E04D13/158—Trimming strips; Edge strips; Fascias; Expansion joints for roofs covering the overhang at the eave side, e.g. soffits, or the verge of saddle roofs
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/10—Fire-proof curtains
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/945—Load-supporting structures specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/946—Protection against smoke or toxic gases
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Toxicology (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a fireproof cornice with a smoke filtering function, and belongs to the technical field of building fire protection. According to the invention, through the two fireproof hanging walls and one fireproof hanging wall, the possibility that flames bypass two sides of the fireproof cornice can be reduced, so that the flames can only flow to the front end of the fireproof cornice, the appearance position of the flames can be changed, most of the flames are far away from a building wall body to burn, the heat radiation of the flames to the wall body is reduced, the surface temperature of the building wall body is reduced, and the possibility of secondary combustion is reduced; through the flue gas filtration subassembly of variable aperture that sets up, can destroy combustion process through the heat dissipation, realize the filtration, elimination and the dissipation effect to flame in the flue gas, changed the energy distribution near the window, make the energy that should upwards radiate spread all around more fast, reach the purpose that the restriction fire situation spread.
Description
Technical Field
The invention relates to the technical field of building fire protection, in particular to a fireproof cornice with a smoke filtering function.
Background
After a high-rise building catches fire, due to the complexity of a building structure, emergency response is usually not timely enough, and the fire can quickly reach the bombing state of indoor fire, and the high-rise building is characterized in that the flame extends out of the door and window to burn because of oxygen deficiency. These spilled fumes become a vertical fire hazard due to the entrapment of large amounts of combustible materials and high temperature flames.
To control the spread of fire caused by the emergence of flames from a window, there are mainly two solutions available at present:
1. the vertical distance between windows is increased, so that the high-temperature flame can reach the second window after being cooled by a long distance, and building regulations are much required. Experiments at Tianjin university show that the height of the window sill wall is not less than 1.2 meters, so that vertical spreading can be prevented;
2. the fireproof cornice is arranged, and the overflowed smoke is collected and delivered out of a certain distance, so that the interference of high-temperature smoke to other windows is avoided. The main function of the fireproof cornice is that the fireproof cornice has a certain blocking effect on flame spreading, so that high-temperature flame deviates from a wall body to be dissipated. Experiments of Tianjin university find that the protruding width of the fireproof cornice is not less than 1.0 meter, so that vertical spreading can be prevented.
However, for economic reasons, the distance between the windows cannot be infinitely increased. The action of wind may cause the spilled plume to fall to one side, resulting in localized overheating combustion. When encountering the fireproof cornice, because the extra flow resistance brought by the fireproof cornice is very small, flames can bypass two sides of the cornice, and the flames are recombined on the upper part of the fireproof cornice to continue to cling to the wall and spread upwards. Sometimes, the flame spreading from the front end of the fireproof cornice can ignite the upper layer of fuel under the action of wind force. That is, existing fire protection cornices simply retard the flow of the flame and do not attenuate the flame sufficiently, thus not achieving the intended goal of controlling spread. The above problems need to be solved, and therefore, a fireproof cornice with a smoke filtering function is provided.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: how to carry out sufficient decay to the flame to reach the purpose that restricts the fire and spread, provide a fire prevention cornice that possesses flue gas filtering capability.
The invention solves the technical problems through the following technical scheme that the fireproof plate comprises a metal sloping plate, a first metal fireproof hanging wall, a second metal fireproof hanging wall, a smoke filtering component and a fireproof cornice plate; the rear end of the fireproof cornice plate is integrally cast with an external building wall body, the first metal fireproof hanging wall is connected with one side of the lower surface of the fireproof cornice plate and is parallel to the flow direction of smoke, the second metal fireproof hanging wall is connected with the other side of the lower surface of the fireproof cornice plate and is parallel to the flow direction of smoke, the metal sloping plate is arranged between the first metal fireproof hanging wall and the second metal fireproof hanging wall and is connected with the lower end of the second metal fireproof hanging wall, an inlet is formed between the rear end of the metal sloping plate and the external building wall body, a channel is formed among the metal sloping plate, the first metal fireproof hanging wall, the second metal fireproof hanging wall and the fireproof cornice plate, the inlet is positioned at the rear end of the channel, and the front end of the channel is provided with an outlet;
the smoke filter assembly comprises a plurality of vertically arranged metal plates with a plurality of through holes, the metal plates are arranged at equal intervals perpendicular to the smoke flowing direction, the upper ends of the metal plates are connected with the surface of the fireproof cornice flat plate, the two sides of the metal plates are respectively connected with the inner surface of the fireproof cornice flat plate, and the lower ends of the metal plates are connected with the metal sloping plates.
Furthermore, the fireproof cornice with the smoke filtering function further comprises a fire blocking upper hanging wall, and the fire blocking upper hanging wall is vertically arranged at the front end of the upper surface of the fireproof cornice plate and is integrally cast with the fireproof cornice plate.
Further, the rear end of the metal sloping plate is connected with an external building wall body through expansion screws and a metal bracket.
Further, the rear end edge of the metal inclined plate is positioned at the position of 0.05-0.2 m of the upper eave of the door and window in the vertical direction.
Further, the hole diameters of the through holes of the metal plates are sequentially reduced along the flow direction of the flue gas.
Further, the metal plate is a metal pore plate or a metal net.
Still further, the sheet metal piece includes movable metal orifice plate, fixed metal orifice plate, all be provided with the aperture of a plurality of same apertures on movable metal orifice plate, the fixed metal orifice plate, movable metal orifice plate is located the inboard of fixed metal orifice plate, through adjusting movable metal orifice plate, the position between the fixed metal orifice plate, adjusts the through-hole aperture size that the aperture that corresponds the position on two metal orifice plates forms.
Still further, possess fire prevention cornice of flue gas filtration function still includes adjusting part, draw-in groove board, adjusting part includes adjusting screw, coupling nut sets up on the movable metal orifice plate, the draw-in groove board sets up first metal fire prevention hanging wall, second metal fire prevention hanging wall inboard surface correspond the position, the both ends of movable metal orifice plate, fixed metal orifice plate are all embedded in the draw-in groove that sets up on the draw-in groove board, adjusting screw runs through first metal fire prevention hanging wall or second metal fire prevention hanging wall and the draw-in groove board setting on it, with first metal fire prevention hanging wall or second metal fire prevention hanging wall pass through the bearing rotation and connect, and with coupling nut threaded connection drives the movable metal orifice plate that links to each other with coupling nut through rotation adjusting screw and slides in fixed metal orifice plate inboard, and then adjusts the through-hole aperture size of metal plate.
Further, the height of each of the metal plates is greater than or equal to 0.1 meter.
Still further, the thickness of the metal sloping plate, the first metal fireproof hanging wall, the second metal fireproof hanging wall and the metal plate is between 0.1 cm and 2.0 cm.
Compared with the prior art, the invention has the following advantages:
1) Through two fireproof hanging walls and one fireproof hanging wall, the possibility that flames bypass two sides of the fireproof cornice can be reduced, flames can only flow to the front end of the fireproof cornice, the flame appearance position can be changed, most flames are far away from a building wall body to burn, heat radiation of the flames to the wall body is reduced, the surface temperature of the building wall body is reduced, and the possibility of secondary combustion is reduced.
2) The combustion process can be destroyed through heat dissipation by the arranged variable aperture flue gas filtering component, so that the effects of filtering, eliminating and dissipating flames in flue gas are realized; when a fire occurs, the smoke dissipates the energy which maintains combustion through the heat conduction of the metal pore plate, namely the smoke passes through, but the energy is left, so that the purpose of limiting the combustible area in a certain range is achieved, the energy is dissipated through metal, the energy density in the smoke is reduced, the energy distribution near a window is changed, the energy which should radiate upwards is diffused to the periphery more rapidly, and the purpose of limiting the fire spreading is achieved.
Drawings
FIG. 1 is a schematic view (perspective) of the overall structure of a fireproof cornice according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a part of a fireproof cornice according to a first embodiment of the present invention;
FIG. 3 is a schematic view showing an internal structure of a fireproof cornice according to a first embodiment of the present invention;
fig. 4 is a schematic view (top view) of a sheet metal member according to a second embodiment of the present invention.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Example 1
As shown in fig. 1-3, the present embodiment provides a technical solution: the fireproof cornice with the smoke filtering function comprises a metal sloping plate 1, a first metal fireproof hanging wall 2, a second metal fireproof hanging wall 3, a smoke filtering component and a fireproof cornice flat plate 5; the rear end of the fireproof cornice flat plate 5 is integrally cast and formed with an external building wall, the first metal fireproof hanging wall 2 is connected with one side of the lower surface of the fireproof cornice flat plate 5 and is parallel to the flow direction of smoke, the second metal fireproof hanging wall 3 is connected with the other side of the lower surface of the fireproof cornice flat plate 5 and is parallel to the flow direction of smoke, the metal sloping plate 1 is arranged between the first metal fireproof hanging wall 2 and the second metal fireproof hanging wall 3 and is connected with the lower end of the first metal hanging wall, an inlet 7 is formed between the rear end of the metal sloping plate 1 and the external building wall, a channel 8 is formed among the metal sloping plate 1, the first metal fireproof hanging wall 2, the second metal fireproof hanging wall 3 and the fireproof cornice flat plate 5, the inlet 7 is positioned at the rear end of the channel 8, and the front end of the channel 8 is provided with an outlet;
the smoke filter assembly comprises a plurality of vertically arranged metal plates 4 with a plurality of through holes, the metal plates 4 are arranged at equal intervals perpendicular to the smoke flowing direction, the upper ends of the metal plates are connected with the surface of the fireproof cornice flat plate 5, the two sides of the metal plates are respectively connected with the inner surface of the fireproof cornice flat plate 5, and the lower ends of the metal plates are connected with the metal inclined plate 1.
In this embodiment, the fireproof cornice with the smoke filtering function further includes a fire-blocking upper hanging wall 6, the position of the flame is changed, and the fire-blocking upper hanging wall 6 is vertically disposed at the front end of the upper surface of the fireproof cornice flat plate 5, and is integrally cast with the fire-blocking upper hanging wall 6
In this embodiment, the rear end of the metal sloping plate 1 is connected with an external building wall body through expansion screws and a metal bracket.
In this embodiment, the rear edge of the metal sloping plate 1 is located at the position of 0.05 m to 0.2 m of the upper eave of the door and window in the vertical direction.
In this embodiment, the hole diameters of the through holes of the metal plate pieces 4 are sequentially reduced along the flow direction of the flue gas, and the metal plate pieces can destroy the combustion process by heat dissipation, so as to realize the functions of filtering, eliminating and dissipating the flame in the flue gas. When a fire occurs, the smoke dissipates the energy which maintains combustion through the heat conduction of the metal pore plate, namely the smoke passes through, but the energy is left, so that the purpose of limiting the combustible area in a certain range is achieved, the energy is dissipated through metal, the energy density in the smoke is reduced, the energy distribution near a window is changed, the energy which should radiate upwards is diffused to the periphery more rapidly, and the purpose of limiting the fire spreading is achieved.
In this embodiment, the metal plate 4 is a metal hole plate or a metal mesh.
In this embodiment, the height of each of the metal plates 4 is greater than or equal to 0.1 meter.
In this embodiment, the thicknesses of the metal sloping plate 1, the first metal fireproof hanging wall 2, the second metal fireproof hanging wall 3 and the metal plate 4 are between 0.1 cm and 2.0 cm, and the metal sloping plate 1, the first metal fireproof hanging wall 2 and the second metal fireproof hanging wall 3 are matched with the metal plate 4 to dissipate energy through metal, so that the energy density in smoke is reduced, the energy distribution near a window is changed, and the energy which should be radiated upwards is diffused to the periphery more rapidly, so that the purpose of limiting fire spreading is achieved.
In this embodiment, the fire-blocking upper hanging wall 6 is rectangular.
In this embodiment, the first metal fireproof hanging wall 2/the second metal fireproof hanging wall 3 is a right trapezoid, the lower bottom of the right trapezoid is mounted close to the wall, the upper bottom of the right trapezoid is far away from the wall, and the right-angle sides of the right trapezoid are connected with the edges of two sides of the fireproof cornice flat plate 5.
Working principle: through setting up this fire prevention cornice at door and window upper ledge, first metal fire prevention sagging wall 2/second metal fire prevention sagging wall 3 can reduce the possibility that flame walked around fire prevention cornice dull and stereotyped both sides, makes the flame only can flow to the dull and stereotyped front end of fire prevention cornice. The plurality of metal plates 4 destroy the combustion process through heat dissipation, so that the effects of filtering, eliminating and dissipating flames in the flue gas are realized; when a fire occurs, the smoke dissipates the energy which maintains combustion through the heat conduction effect of the metal plate 4 (matched with the metal sloping plate 1, the first metal fireproof hanging wall 2 and the second metal fireproof hanging wall 3), namely the smoke passes through, but the energy is left, so that the purpose of limiting the combustible area within a certain range is achieved, and the energy is dissipated through the metal, thereby reducing the energy density in the smoke, changing the energy distribution near the window, enabling the energy which should radiate upwards to diffuse to the periphery more rapidly, and achieving the purpose of limiting the fire spreading.
Example two
In this embodiment, the metal plate 4 has a variable aperture structure, and the size of the aperture of the through hole can be changed by overlapping the two aperture plates. As shown in fig. 4, specifically, the metal plate 4 includes a movable metal orifice 41 and a fixed metal orifice 42, holes 43 with the same aperture are formed in the movable metal orifice 41 and the fixed metal orifice 42, the movable metal orifice 41 is located at the inner side (side close to the building outer wall) of the fixed metal orifice 42, and the size of the through hole formed by the holes 43 at the corresponding positions on the two metal orifice is adjusted by adjusting the position between the movable metal orifice 41 and the fixed metal orifice 42.
In this embodiment, the fireproof cornice with the flue gas filtering function further comprises an adjusting component and a clamping groove plate 11, the adjusting component comprises an adjusting screw rod 121 and a connecting nut 122, the connecting nut 122 is arranged on the movable metal orifice plate 41, the clamping groove plate 11 is arranged at the corresponding positions of the surfaces of the first metal fireproof hanging wall 2 and the second metal fireproof hanging wall 3, both ends of the movable metal orifice plate 41 and both ends of the fixed metal orifice plate 42 are embedded into clamping grooves formed in the clamping groove plate 11, the adjusting screw rod 121 penetrates through the first metal fireproof hanging wall 2 or the second metal fireproof hanging wall 3 and the clamping groove plate 11 arranged on the first metal fireproof hanging wall 2 or the second metal fireproof hanging wall 3, is connected with the first metal fireproof hanging wall 2 or the second metal fireproof hanging wall 3 through a bearing in a rotating mode, is connected with the connecting nut 122 through threads, and drives the movable metal orifice plate 41 connected with the connecting nut 122 to slide inside the fixed metal orifice plate 42 through the rotating adjusting screw rod 121, and then the aperture size of a through hole of the metal plate 4 is adjusted.
In this embodiment, the fixed metal orifice plate 42 is fixedly connected to the clamping groove plate 11 by a positioning bolt 421.
The adjusting screw 121 may be driven by a driving component such as a motor.
When a fire occurs in the building, the early through holes are normally released, and when flames concentrate on the front end of the fireproof cornice and the upper hanging wall 6 of the fire baffle, the fireproof cornice slides to lean against one side pore plate (the movable metal pore plate 41) of the outer wall of the building, so that the pore diameter is reduced, and the flames are continuously gathered on the upper hanging wall 6 of the fire baffle, so that the fireproof fire extinguishing is realized.
If the fuel load of the protected object is high and the fire duration is long, the three-layer metal plate 4 is possibly insufficient to absorb all energy, at this time, a plurality of metal plates 4 or heat conducting ribs can be added under the fireproof cornice flat plate 5, the functions of heat absorption and dissipation can be exerted as well, the energy in the smoke is transferred to the whole metal structure by utilizing the high heat conductivity of the metal, and the environment is radiated by convection and radiation, so that the temperature of the discharged smoke is reduced. After a section of entrainment, the temperature of the combustible gas in the flue gas is reduced and is not combustible, so that the energy control of the flue gas is realized.
Except for the above-described embodiments, the other embodiments in this example are the same as those in the first example.
Example III
In this embodiment, cornice reconstruction is performed to the existing building, and if the building is provided with a fireproof cornice, the first metal fireproof hanging wall 2 and the second metal fireproof hanging wall 3 parallel to the smoke flow direction can be additionally installed under the existing external cornice plate. And a plurality of metal plates 4 are arranged between the first metal fireproof hanging wall 2 and the second metal fireproof hanging wall 3 perpendicular to the flow direction of the smoke. In the process of enabling the smoke to pass through the fireproof cornice, the energy for maintaining combustion is dissipated through the heat conduction effect of the metal plate 4, namely, the smoke passes through, but the energy is left, so that the purpose of limiting the combustible area within a certain range is achieved, the energy density in the smoke is reduced through the energy dissipation of metal, the energy distribution near the window is changed, the energy which should be radiated upwards is enabled to diffuse to the periphery more rapidly, and the purpose of limiting the fire spreading is achieved.
Except for the above-described embodiments, the other embodiments in this example are the same as those in the first example.
In summary, the fireproof cornice with the smoke filtering function in the above embodiment, through the two fireproof hanging walls and the fireproof hanging wall, the possibility that the flame bypasses two sides of the fireproof cornice can be reduced, so that the flame can only flow to the front end of the fireproof cornice, the flame appearance position can be changed, most of the flame is far away from the building wall to burn, the heat radiation of the flame to the wall is reduced, the surface temperature of the building wall is reduced, and the possibility of secondary combustion is reduced; through the flue gas filtration subassembly of variable aperture that sets up, can destroy combustion process through the heat dissipation, realize the filtration, elimination and the dissipation effect to flame in the flue gas, changed the energy distribution near the window, make the energy that should upwards radiate spread all around more fast, reach the purpose that the restriction fire situation spread.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The fireproof cornice with the smoke filtering function is characterized by comprising a metal sloping plate, a first metal fireproof hanging wall, a second metal fireproof hanging wall, a smoke filtering component and a fireproof cornice flat plate; the rear end of the fireproof cornice plate is integrally cast with an external building wall body, the first metal fireproof hanging wall is connected with one side of the lower surface of the fireproof cornice plate and is parallel to the flow direction of smoke, the second metal fireproof hanging wall is connected with the other side of the lower surface of the fireproof cornice plate and is parallel to the flow direction of smoke, the metal sloping plate is arranged between the first metal fireproof hanging wall and the second metal fireproof hanging wall and is connected with the lower end of the second metal fireproof hanging wall, an inlet is formed between the rear end of the metal sloping plate and the external building wall body, a channel is formed among the metal sloping plate, the first metal fireproof hanging wall, the second metal fireproof hanging wall and the fireproof cornice plate, the inlet is positioned at the rear end of the channel, and the front end of the channel is provided with an outlet;
the smoke filter assembly comprises a plurality of vertically arranged metal plates with a plurality of through holes, the metal plates are arranged at equal intervals perpendicular to the smoke flowing direction, the upper ends of the metal plates are connected with the surface of the fireproof cornice flat plate, the two sides of the metal plates are respectively connected with the inner surface of the fireproof cornice flat plate, and the lower ends of the metal plates are connected with the metal sloping plates.
2. The fireproof cornice with a smoke filtering function according to claim 1, wherein: the fireproof cornice with the smoke filtering function further comprises a fire-blocking upper hanging wall, wherein the fire-blocking upper hanging wall is vertically arranged at the front end of the upper surface of the fireproof cornice plate and is integrally cast with the fireproof cornice plate.
3. A fire protection cornice with smoke filtering function according to claim 1 or 2, characterized in that: the rear end of the metal sloping plate is connected with an external building wall body through expansion screws and a metal bracket.
4. The fireproof cornice with a smoke filtering function according to claim 1, wherein: the rear edge of the metal inclined plate is positioned at the position of 0.05-0.2 m of the upper eave of the door and window in the vertical direction.
5. The fire protection cornice with smoke filtering function according to claim 4, wherein: the aperture of the through hole of each metal plate piece is sequentially reduced along the flow direction of the flue gas.
6. The fire protection cornice with smoke filtering function according to claim 5, wherein: the metal plate is a metal pore plate or a metal net.
7. The fire protection cornice with smoke filtering function according to claim 5, wherein: the metal plate comprises a movable metal pore plate and a fixed metal pore plate, wherein a plurality of holes with the same aperture are formed in the movable metal pore plate and the fixed metal pore plate, the movable metal pore plate is located on the inner side of the fixed metal pore plate, and the size of a through hole formed by the holes at the corresponding positions on the two metal pore plates is adjusted by adjusting the positions between the movable metal pore plate and the fixed metal pore plate.
8. The fireproof cornice with a smoke filtering function according to claim 7, wherein: the fireproof cornice with the smoke filtering function further comprises an adjusting component and a clamping groove plate, the adjusting component comprises an adjusting screw rod and a connecting nut, the connecting nut is arranged on the movable metal orifice plate, the clamping groove plate is arranged at the corresponding position of the inner side surfaces of the first metal fireproof hanging wall and the second metal fireproof hanging wall, both ends of the movable metal orifice plate and both ends of the fixed metal orifice plate are embedded into clamping grooves formed in the clamping groove plate, the adjusting screw rod penetrates through the first metal fireproof hanging wall or the second metal fireproof hanging wall and the clamping groove plate arranged on the first metal fireproof hanging wall or the second metal fireproof hanging wall, the first metal fireproof hanging wall or the second metal fireproof hanging wall is connected with the connecting nut in a threaded mode through a bearing, and the movable metal orifice plate connected with the connecting nut is driven to slide on the inner side of the fixed metal orifice plate through the rotating adjusting screw rod, so that the aperture size of a through hole of the metal plate is adjusted.
9. The fireproof cornice with a smoke filtering function according to claim 6, wherein: the height of each metal plate is greater than or equal to 0.1 meter.
10. The fireproof cornice with a smoke filtering function according to claim 9, wherein: the thicknesses of the metal sloping plate, the first metal fireproof hanging wall, the second metal fireproof hanging wall and the metal plate are between 0.1 cm and 2.0 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310578275.2A CN116446603A (en) | 2023-05-22 | 2023-05-22 | Fireproof cornice with smoke filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310578275.2A CN116446603A (en) | 2023-05-22 | 2023-05-22 | Fireproof cornice with smoke filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116446603A true CN116446603A (en) | 2023-07-18 |
Family
ID=87130315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310578275.2A Pending CN116446603A (en) | 2023-05-22 | 2023-05-22 | Fireproof cornice with smoke filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116446603A (en) |
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2023
- 2023-05-22 CN CN202310578275.2A patent/CN116446603A/en active Pending
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