CN216447692U - Smoke-proof and smoke-discharging fireproof air pipe - Google Patents
Smoke-proof and smoke-discharging fireproof air pipe Download PDFInfo
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- CN216447692U CN216447692U CN202123173899.1U CN202123173899U CN216447692U CN 216447692 U CN216447692 U CN 216447692U CN 202123173899 U CN202123173899 U CN 202123173899U CN 216447692 U CN216447692 U CN 216447692U
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Abstract
The application discloses smoke protection fire-resistant tuber pipe of discharging fume, include interior fire-resistant supporting layer, fire-resistant filling layer and the outer fire-resistant supporting layer that sets gradually from inside to outside, wherein, interior fire-resistant supporting layer with outer fire-resistant supporting layer is ceramic fiber board, just fire-resistant filling layer includes the strip ceramic fiber board of perpendicular to tuber pipe length direction interval arrangement and fills low density ceramic fiber in the space between the strip ceramic fiber board. Above-mentioned smoke prevention fire-resistant tuber pipe of discharging fume can ensure that the tuber pipe can normal operating when the conflagration breaing out, can not collapse, in time discharges the flue gas, reduces the harm to the human body to can reduce whole weight.
Description
Technical Field
The utility model relates to the technical field of fireproof equipment, in particular to a smoke-proof, smoke-discharging and fire-resistant air pipe.
Background
The existing smoke prevention and exhaust system adopts a natural ventilation or mechanical pressurization air supply mode during working, when a fire disaster occurs, in order to prevent smoke from entering an evacuation channel, the smoke is exhausted outside a building in a natural ventilation mode or a mechanical pressurization air supply mode, wherein the mechanical pressurization air supply mode needs to use a ventilation pipeline as a medium, and a smoke prevention and exhaust air pipe plays an important role in preventing fire from spreading and reducing casualties when the fire disaster occurs. The current smoke-proof smoke-discharging fire-resistant air duct is usually coated with a fire-proof layer outside a galvanized iron sheet, and the fire-proof layer can be a fire blanket or a fiber reinforced silicate fire-proof plate. Although the integrity of the structure can be ensured, the weight of the air pipe is large, the bearing burden of a building structure is increased, meanwhile, the heat insulation performance of the fiber reinforced silicate fireproof plate is poor, the outer wall of the air pipe is easy to cause over-temperature and fire spread, the scheme of the galvanized iron sheet outer cladding fireproof blanket is superior to that of a fireproof material, but the structure has no supporting force, when a fire disaster occurs, the structure is difficult to bear continuous burning of high-temperature flame, the smoke exhaust air pipe is easy to deform or collapse, smoke cannot be discharged timely, and the probability of casualties and building structure damage during the fire disaster is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a smoke-proof, smoke-discharging and fire-resistant air duct which can ensure that the air duct can normally operate and cannot collapse when a fire disaster happens, discharge smoke in time, reduce the damage to a human body and reduce the overall weight.
The utility model provides a smoke-proof and smoke-discharging fireproof air duct which comprises an inner fireproof supporting layer, a fireproof filling layer and an outer fireproof supporting layer which are sequentially arranged from inside to outside, wherein the inner fireproof supporting layer and the outer fireproof supporting layer are ceramic fiber boards, and the fireproof filling layer comprises strip-shaped ceramic fiber boards which are arranged at intervals in a direction perpendicular to the length direction of the air duct and low-density ceramic fibers which are filled in gaps among the strip-shaped ceramic fiber boards.
Preferably, in the above-mentioned smoke and smoke preventing and fire preventing air duct, an inner surface of the inner fire resistant support layer is covered with a metal plate.
Preferably, in the above smoke and smoke preventing and fire resisting air duct, the outer surface of the outer fire resisting support layer is covered with a metal plate.
Preferably, in the above smoke-proof, smoke-discharging and fire-resistant air duct, the metal plate is a galvanized steel plate or a color steel plate.
Preferably, in the above smoke-proof, smoke-discharging and fire-resistant air duct, the low-density ceramic fiber is a ceramic fiber blanket or a ceramic fiber cotton.
Preferably, in the smoke-proof, smoke-discharging and fire-resistant air duct, the distance between the adjacent ceramic fiber strips is 400mm to 1220 mm.
Preferably, in the above smoke-proof, smoke-discharging and fire-resistant air duct, the width of the ceramic fiber board strip is 100mm to 150 mm.
Preferably, in the above smoke-proof, smoke-discharging and fire-resistant air duct, the density of the ceramic fiber board is 170kg/m3To 360kg/m3。
According to the technical scheme, the smoke-proof, smoke-discharging and fire-resistant air pipe comprises an inner fire-resistant supporting layer, a fire-resistant filling layer and an outer fire-resistant supporting layer which are sequentially arranged from inside to outside, wherein the inner fire-resistant supporting layer and the outer fire-resistant supporting layer are both ceramic fiber plates, effective support can be formed, deformation at high temperature is not prone to occurring, the fire-resistant filling layer comprises strip-shaped ceramic fiber plates which are arranged perpendicular to the length direction of the air pipe at intervals and low-density ceramic fibers which are filled in gaps among the strip-shaped ceramic fiber plates, the structure can ensure that the whole weight is small enough, large pressure cannot be caused to a building, and therefore the smoke-proof, smoke-discharging and fire-resistant air pipe can ensure that the air pipe can normally operate in case of fire, timely discharges smoke, and reduces damage to a human body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a transverse cross-sectional view of an embodiment of a smoke and smoke protection and fire resistant duct of the present invention;
FIG. 2 is a longitudinal cross-sectional view of an embodiment of a smoke and smoke protection and fire resistant duct of the present invention;
fig. 3 is a schematic view of the initial state of manufacturing the smoke-proof, smoke-discharging and fire-proof air duct.
Detailed Description
The core of the utility model is to provide a smoke-proof, smoke-discharging and fire-resistant air duct which can ensure that the air duct can normally operate when a fire disaster happens, discharge smoke in time, reduce the damage to human bodies and reduce the overall weight.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the smoke and smoke preventing and fire resisting air duct provided by the utility model is shown in fig. 1 and fig. 2, wherein fig. 1 is a transverse cross-sectional view of an embodiment of the smoke and smoke preventing and fire resisting air duct provided by the utility model, fig. 2 is a longitudinal cross-sectional view of an embodiment of the smoke and smoke preventing and fire resisting air duct provided by the utility model, the smoke and smoke preventing and fire resisting air duct comprises an inner fire resisting supporting layer 1, a fire resisting filling layer 2 and an outer fire resisting supporting layer 3 which are arranged from inside to outside in sequence, wherein the inner fire resisting supporting layer 1 and the outer fire resisting supporting layer 3 are both ceramic fiber boards, so that the air duct has enough supporting strength, cannot collapse in case of fire, and the material has lower density, and can be preferably 170kg/m3To 360kg/m3So that the whole weight of the air duct is smaller and does not exert a large pressure on the building, and the refractory filling layer 2 comprises strip-shaped ceramic fiber boards 201 arranged at intervals in the direction perpendicular to the length direction of the air duct andthe low-density ceramic fiber 202 who fills in the space between strip ceramic fiber board 201, this kind of strip ceramic fiber board 201 can be connected interior fire-resistant supporting layer 1 and outer fire-resistant supporting layer 3, guarantees wholly to have sufficient stability, and this kind of low-density ceramic fiber can be on the basis of guaranteeing sufficient smoke protection and smoke exhaust effect, further reduces whole weight, avoids causing great pressure to the building.
According to the technical scheme, in the embodiment of the smoke-proof and smoke-discharging fire-resistant air pipe provided by the utility model, the smoke-proof and smoke-discharging fire-resistant air pipe comprises the inner fire-resistant supporting layer, the fire-resistant filling layer and the outer fire-resistant supporting layer which are sequentially arranged from inside to outside, wherein the inner fire-resistant supporting layer and the outer fire-resistant supporting layer are both ceramic fiber plates, effective support can be formed, deformation at high temperature is not easy to occur, and the fire-resistant filling layer comprises strip-shaped ceramic fiber plates which are arranged at intervals in the length direction of the air pipe and low-density ceramic fibers which are filled in gaps among the strip-shaped ceramic fiber plates.
In one embodiment of the above-described smoke and smoke protection and fire protection ductwork, with continued reference to fig. 1, the inner surface of the inner fire-resistant support layer 1 may be covered with a metal plate 4, and the outer surface of the outer fire-resistant support layer 3 may also be covered with a metal plate 4, which may preferably be a galvanized steel plate or a color steel plate. It should be noted that, this kind of metal sheet can be regarded as having dampproofing and waterproofing's function, can also regard as the decoration, because there is the wind speed on the tuber pipe surface of inlayer, directly use ceramic fiber board as the inlayer surface, can touch wind all the time, probably the wind erosion appears, ceramic fiber board is the fibre that drops easily, consequently can cover the metal sheet in its inner surface in order to avoid this problem, and the surface is also handled as a matter of course, and this here is no longer repeated.
It should be noted that, referring to fig. 3, fig. 3 is a schematic diagram of an initial state of manufacturing the smoke-proof, smoke-discharging and fire-resistant air duct, the structure shown in fig. 3 can be manufactured according to the size requirement of the air duct, that is, a right-angle groove is cut on the surface of the inner fire-resistant supporting layer 1, the depth is close to the whole thickness of the air duct without damaging the metal plate 4 adhered on the surface of the outer fire-resistant supporting layer 3, the included angle between the inclined plane of the right-angle groove and the outer fire-resistant supporting layer 3 is 45 °, then the structure is folded by 90 ° according to the position of the groove, and finally the rectangular smoke-proof, smoke-discharging and fire-resistant air duct shown in fig. 1 is manufactured.
In another embodiment of the above smoke-proof, smoke-discharging and fire-resistant air duct, the low-density ceramic fiber may be a ceramic fiber blanket or a ceramic fiber cotton, the ceramic fiber blanket may be further preferably a ceramic fiber needled blanket, both of the ceramic fiber blanket and the ceramic fiber needled blanket may be used as fire-resistant filling layers, the filling thickness may be equal to or slightly higher than that of the strip-shaped ceramic fiber board, and the density of the ceramic fiber blanket may be 64-128 kg/m3The filling density of the ceramic fiber cotton can be 50-100 kg/m3These low density ceramic fibers may be compression sealed with an inner refractory support layer.
In yet another embodiment of the smoke and smoke protection and fire resistant ductwork described above, the spacing between adjacent ceramic fiber strips may be 400mm to 1220mm, more preferably 400mm to 650mm, which may be selected according to the actual needs, and the ceramic fiber strips may be perpendicular to both the inner and outer fire resistant support layers. Further, the width of the strip-shaped ceramic fiber sheet may preferably be 100mm to 150 mm.
In summary, in the embodiment of the smoke-proof, smoke-discharging and fire-resistant air duct provided by the application, because the ceramic fiber board, the ceramic fiber blanket and the ceramic fiber cotton are used as the main materials of the air duct, the material itself has good high temperature resistance, the air duct is ensured not to deform during continuous high-temperature firing, the integrity of the air duct is ensured, the ceramic fiber board, the ceramic fiber blanket and the ceramic fiber cotton material have low self heat conductivity and good heat insulation performance, the temperature of the fire-proof air duct on the production surface of a fire disaster can be reduced, and the fire spread is effectively prevented; and the ceramic fiber material has low self weight, so that the load bearing load of a building can be reduced, and the air pipe can be manufactured into a single module in a factory and then directly installed on a construction site.
The above embodiments are described below with reference to two examples of duct fabrication:
the first example is as follows:
first, a prepared density of 220kg/m3The ceramic fiber board is used as an outer fireproof support layer to determine the length direction of the air pipe;
secondly, sticking strip-shaped ceramic fiber boards on the ceramic fiber boards in a direction vertical to the length direction of the air pipe, wherein the interval between every two strip-shaped ceramic fiber boards is 1200 mm; the width of each strip-shaped ceramic fiber plate is 150 mm;
thirdly, 128kg/m of filler is filled in the middle of each strip-shaped ceramic fiber board partition3The ceramic fiber needled blanket is used as a fireproof filling layer, and the ceramic fiber needled blanket for filling is slightly higher than the strip-shaped ceramic fiber board;
fourth, the same size as the outer refractory support layer was prepared with a density of 220kg/m3The ceramic fiber board is pasted on the strip-shaped ceramic fiber board, and meanwhile, the refractory filling layer is compacted and sealed;
fifthly, adhering color steel plates on the outer surfaces of the inner and outer fireproof supporting layers;
sixthly, according to the size requirement of the air duct, shaving right-angle grooves on the surface of an inner fire-resistant supporting layer in the composite structure, wherein the depth is close to the overall thickness of the composite structure without damaging the color steel plates adhered on the surface of the outer fire-resistant supporting layer; the angle between the inclined plane of the right-angle groove and the outer refractory supporting layer is 45 degrees;
seventhly, folding the composite structure into 90 degrees according to the positions of the grooves, and finally manufacturing the rectangular smoke-preventing and fire-resistant air pipe.
The second example:
first, the prepared density was 170kg/m3The ceramic fiber board is used as an outer fireproof support layer to determine the length direction of the air pipe;
secondly, sticking strip-shaped ceramic fiber boards on the ceramic fiber boards in a direction perpendicular to the length direction of the air pipe, wherein the interval between every two strip-shaped ceramic fiber boards is 610 mm; the width of each strip-shaped ceramic fiber board is 100 mm;
thirdly, each strip-shaped ceramic fiber board is partitioned and filled with ceramic fiber cotton as a refractory filling layer with the filling density of 90kg/m3Ceramic fibers for fillingCotton is slightly higher than the strip ceramic fiber board;
fourthly, the same size as the outer refractory support layer with a density of 170kg/m is prepared3The ceramic fiber board is pasted on the strip-shaped ceramic fiber board, and meanwhile, the refractory filling layer is compacted and sealed;
fifthly, coating galvanized steel sheets on the outer surfaces of the inner and outer refractory supporting layers;
sixthly, according to the size requirement of the air duct, shaving right-angle grooves on the surface of an inner fire-resistant supporting layer in the composite structure, wherein the depth of the grooves is close to the whole thickness of the composite structure without damaging a color steel plate adhered on the surface of the outer fire-resistant supporting layer; the angle between the inclined plane of the right-angle groove and the outer fireproof supporting layer is 45 degrees;
seventhly, folding the composite structure into 90 degrees according to the positions of the grooves, and finally manufacturing the rectangular smoke-preventing and fire-resistant air pipe.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a fire-resistant tuber pipe of smoke protection and smoke evacuation which characterized in that includes interior fire-resistant supporting layer, fire-resistant filling layer and the outer fire-resistant supporting layer that sets gradually from inside to outside, wherein, interior fire-resistant supporting layer with outer fire-resistant supporting layer is ceramic fiber board, just fire-resistant filling layer includes the strip ceramic fiber board of perpendicular to tuber pipe length direction interval arrangement and fills low density ceramic fiber in the space between the strip ceramic fiber board.
2. The smoke and smoke protection and fire protection ductwork of claim 1 wherein the inner surface of said inner fire resistant support layer is covered with a metal plate.
3. The smoke and smoke control and fire resistant air hose of claim 1 wherein the outer surface of the outer fire resistant support layer is covered with a metal plate.
4. The smoke and smoke preventing and discharging fire resistant air duct of claim 2 or 3, wherein said metal plate is galvanized steel plate or color steel plate.
5. The smoke and smoke protection and fire resistant air duct of claim 1, wherein said low density ceramic fibers are ceramic fiber blanket or ceramic fiber cotton.
6. The smoke and smoke preventing and fire resisting air duct of claim 1, wherein the distance between adjacent ceramic fiber strips is 400mm to 1220 mm.
7. The smoke and smoke protection and fire protection duct according to claim 1, wherein the ceramic fiber board strips have a width of 100mm to 150 mm.
8. The smoke and smoke protection and fire protection ductwork of claim 1, wherein said ceramic fiber board has a density of 170kg/m3To 360kg/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123173899.1U CN216447692U (en) | 2021-12-16 | 2021-12-16 | Smoke-proof and smoke-discharging fireproof air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123173899.1U CN216447692U (en) | 2021-12-16 | 2021-12-16 | Smoke-proof and smoke-discharging fireproof air pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216447692U true CN216447692U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123173899.1U Active CN216447692U (en) | 2021-12-16 | 2021-12-16 | Smoke-proof and smoke-discharging fireproof air pipe |
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| Country | Link |
|---|---|
| CN (1) | CN216447692U (en) |
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- 2021-12-16 CN CN202123173899.1U patent/CN216447692U/en active Active
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