CN201347768Y - Fire smoke extraction duct - Google Patents
Fire smoke extraction duct Download PDFInfo
- Publication number
- CN201347768Y CN201347768Y CNU2008201134802U CN200820113480U CN201347768Y CN 201347768 Y CN201347768 Y CN 201347768Y CN U2008201134802 U CNU2008201134802 U CN U2008201134802U CN 200820113480 U CN200820113480 U CN 200820113480U CN 201347768 Y CN201347768 Y CN 201347768Y
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- CN
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- Prior art keywords
- casing play
- duct
- cylindrical shell
- fire
- air duct
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Abstract
The utility model relates to a fire smoke extraction duct, which comprises a duct body, wherein the duct body comprises a skeleton layer, an inner surface layer and an outer surface layer, and the inner surface layer and the outer surface layer are stuck to the inner surface and the outer surface of the skeleton layer; ports of the two ends of the duct body expand outwards radially, and the diameter of the port is 3 percent to 7 percent larger than the diameter of the duct body; when the duct is of a positive pressure smoke extraction duct, the skeleton layer is of a brocade fabric skeleton layer made of brocade fabric; when the duct is of a negative pressure smoke extraction duct, the skeleton layer is of a glass fiber fabric skeleton layer made of glass fiber fabric; and both the inner surface and the outer surface are of a rubber surface layer. The ports of the two ends of the duct body of the smoke extraction duct, which expand outwards radially, can be better combined and matched with fire parts, thereby increasing the sealing performance, and conveniently and fast loading and unloading; thin brocade fabric with light texture serves as the skeleton layer material, thereby meeting the requirements of the fire duct, so that the weight of the smoke extraction duct is greatly reduced, and the thickness of the duct body is also much thinner; and the duct is convenient to carry and easy to install and use.
Description
(1) technical field:
The utility model relates to a kind of air duct of ventilate air draft or smoke evacuation usefulness, specifically, relates to the smoke evacuation tube that fire-fighting is used.
(2) background technology:
In the colliery, often to use ventilation air draft air duct, the air draft of using in the colliery is with comprising cylindrical shell, cylindrical shell comprises casing play and the inside and outside surface course that is affixed on the casing play surfaces externally and internally, and its cylindrical shell is a straight barrel type, and promptly the diameter of the two ends port of cylindrical shell is identical with the diameter of cylindrical shell.Do not have the smoke evacuation air duct that designs for fire fighting equipment specially now, because the fire-fighting fume extractor is different with the colliery exhaust equipment, and its environment for use is different with requirement, so colliery smoke evacuation air duct can not be directly applied for fire-fighting.
(3) summary of the invention:
The utility model fire-fighting smoke evacuation air duct, also comprise cylindrical shell, cylindrical shell comprises casing play and the inside and outside surface course that is affixed on the casing play surfaces externally and internally, with existing air draft be with different, in order to cooperate fire fighting equipment and fire-fighting requirement, the two ends port of the cylindrical shell of this smoke evacuation air duct radially extends out, and the diameter of port has solved the smoke evacuation air duct problem of fire-fighting fume extractor greater than the diameter 3%～7% of cylindrical shell.
When described smoke evacuation air duct was malleation smoke evacuation air duct, described casing play was preferably the bright and beautiful thick cloth casing play that bright and beautiful thick cloth is made; And the inside and outside surface course that is affixed on the inside and outside surface of bright and beautiful thick cloth casing play is preferably the rubber surface layer, in the requirement that reaches the fire-fighting air duct, the weight of smoke evacuation air duct is greatly alleviated, and the also greatly attenuation of the thickness of cylindrical shell.
When described smoke evacuation air duct was negative pressure smoke evacuation air duct, described casing play was preferably the glass fabric casing play of being made by glass fabric; The inside and outside surface course that is affixed on the inside and outside surface of glass fabric casing play preferably also is the rubber surface layer; Be more preferably on the external surface of glass fabric casing play and be fixed with the spiral ring skeleton, be affixed on the external surface of glass fabric casing play along the glass fiber cloth of spiral ring skeleton external surface setting, with the spiral ring skeletal fixation on the external surface of glass fabric casing play.
The port that the cylindrical shell two ends of this smoke evacuation air duct radially extend out can combine with the fire-fighting parts better, supporting, both increased sealing performance, can conveniently load and unload again; And adopt that quality is light, the thick cloth of Bao Jin is as the casing play material, both can reach the requirement of fire-fighting air duct, and the weight of smoke evacuation air duct is greatly alleviated, and also greatly attenuation of the thickness of cylindrical shell, this air draft is easy to install and use with being easy to carry.
(4) description of drawings:
Fig. 1 is a kind of embodiment structural representation of the present utility model.
Reference numeral:
1, cylindrical shell; 2, port.
(5) specific embodiment:
Figure 1 shows that a kind of embodiment of malleation smoke evacuation air duct of the present utility model, in embodiment shown in Figure 1, fire-fighting smoke evacuation air duct, comprise cylindrical shell 1, cylindrical shell 1 comprises casing play 2 and is affixed on inside and outside surface course on the casing play surfaces externally and internally, the described casing play bright and beautiful thick cloth casing play that bright and beautiful thick cloth is made of serving as reasons; The inside and outside surface course that is affixed on the inside and outside surface of bright and beautiful thick cloth casing play is the rubber surface layer.The two ends port 2 of cylindrical shell 1 radially extends out, and cylindrical shell 1 diameter is 475mm, and the diameter of the two ends port 2 of cylindrical shell 1 is 495mm.
Negative pressure smoke evacuation air duct of the present utility model, comprise cylindrical shell 1, cylindrical shell 1 comprises casing play and the inside and outside surface course that is affixed on the casing play surfaces externally and internally, the glass fabric casing play of described casing play for making by glass fabric, the inside and outside surface course that is affixed on the inside and outside surface of glass fabric casing play is the rubber surface layer; Be fixed with the spiral ring skeleton on the external surface of glass fabric casing play, be affixed on the external surface of glass fabric casing play along the glass fiber cloth of spiral ring skeleton external surface setting, with the spiral ring skeletal fixation on the external surface of glass fabric casing play.
Claims (5)
1, fire-fighting smoke evacuation air duct, comprise cylindrical shell, described cylindrical shell comprises casing play and the inside and outside surface course that is affixed on the casing play surfaces externally and internally, and it is characterized in that: the two ends port (2) of cylindrical shell (1) radially outward expands, and the diameter of port (2) is greater than the diameter 3%～7% of cylindrical shell (1).
2, fire-fighting according to claim 1 smoke evacuation air duct is characterized in that: the described casing play bright and beautiful thick cloth casing play that bright and beautiful thick cloth is made of serving as reasons.
3, fire-fighting smoke evacuation air duct according to claim 2, it is characterized in that: the inside and outside surface course that is affixed on the surfaces externally and internally of bright and beautiful thick cloth casing play is the rubber surface layer.
4 fire-fightings smoke evacuation air duct, comprise cylindrical shell, described cylindrical shell comprise casing play and be affixed on the casing play surfaces externally and internally in, outer surface layer, the glass fabric casing play of described casing play for making by glass fabric, be fixed with the spiral ring skeleton on the external surface of glass fabric casing play, be affixed on the external surface of glass fabric casing play along the glass fiber cloth of spiral ring skeleton external surface setting, with the spiral ring skeletal fixation on the external surface of glass fabric casing play, it is characterized in that: the two ends port (2) of cylindrical shell (1) radially outward expands, and the diameter of port (2) is greater than the diameter 3%～7% of cylindrical shell (1).
5, fire-fighting smoke evacuation air duct according to claim 4, it is characterized in that: the inside and outside surface course that is affixed on the surfaces externally and internally of glass fabric casing play is the rubber surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201134802U CN201347768Y (en) | 2008-10-17 | 2008-10-17 | Fire smoke extraction duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201134802U CN201347768Y (en) | 2008-10-17 | 2008-10-17 | Fire smoke extraction duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347768Y true CN201347768Y (en) | 2009-11-18 |
Family
ID=41367238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201134802U Expired - Lifetime CN201347768Y (en) | 2008-10-17 | 2008-10-17 | Fire smoke extraction duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347768Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121391A (en) * | 2011-04-22 | 2011-07-13 | 中铁二十三局集团第三工程有限公司 | Construction method for ventilation in construction of small-radius spiral tunnel |
-
2008
- 2008-10-17 CN CNU2008201134802U patent/CN201347768Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121391A (en) * | 2011-04-22 | 2011-07-13 | 中铁二十三局集团第三工程有限公司 | Construction method for ventilation in construction of small-radius spiral tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |