CN202755616U - Double-door exhaust duct with fire damper - Google Patents
Double-door exhaust duct with fire damper Download PDFInfo
- Publication number
- CN202755616U CN202755616U CN 201220120170 CN201220120170U CN202755616U CN 202755616 U CN202755616 U CN 202755616U CN 201220120170 CN201220120170 CN 201220120170 CN 201220120170 U CN201220120170 U CN 201220120170U CN 202755616 U CN202755616 U CN 202755616U
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- CN
- China
- Prior art keywords
- exhaust duct
- fire resisting
- resisting damper
- fire damper
- double
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a double-door exhaust duct with a fire damper. The double-door exhaust duct comprises an exhaust duct, a guide curve and the fire damper, and is characterized in that the guide curve is inserted in a flow channel center of the exhaust duct, a smoke outlet faces upwards, a smoke inlet and the smoke outlet are arranged on the guide curve, and the fire damper is arranged in the smoke inlet; and when the temperature of an indoor environment or the temperature of the inside of the exhaust duct reaches a rated value, fusible sheets fuse, and the fire damper is closed. The double-door exhaust duct with the fire damper has the advantages that the guide curve has double functions of guiding gas and changing the pressure, flow channel resistance of the exhaust duct is low, displacement is high, siphonage is obvious, smoke is not easy to flow backwards, and the smoke and fire are prevented from spreading after the fire damper is closed.
Description
Technical field
The utility model relates to the exhaust duct in a kind of dwelling house fume emission, particularly two-door fire resisting damper exhaust duct.
Background technology
Exhaust duct in the present dwelling house fume emission, majority is that exhaust duct is blank pipe, and indoor flue gas enters from the exhaust duct air inlet port, directly injects in the exhaust duct, airflow direction in airflow direction and the exhaust duct is orthogonal, the bump exhaust duct rebounds after to wall, produces eddy current, the air curtain of formation, hindering the indoor rising waste gas of lower floor discharges, flue gas easily pours in down a chimney and enters indoorly, and capacity is little, does not have fire resisting damper.
The utility model content
The utility model purpose provides a kind of two-door fire resisting damper exhaust duct, the curved double action that possesses water conservancy diversion flue gas and transformation of water conservancy diversion, and fire resisting damper stops pyrotechnics to spread.
The technical solution of the utility model is a kind of two-door fire resisting damper exhaust duct of design, comprise exhaust duct, water conservancy diversion is curved and fire resisting damper, it is characterized in that: the runner center of water conservancy diversion bend cutting in exhaust duct, the gas outlet is up, air inlet port and gas outlet are arranged on water conservancy diversion is curved, fire resisting damper is in air inlet port, and indoor airflow direction is consistent with the ascending air direction of lower floor, and the air-flow of lower floor passes through three on the curved periphery of water conservancy diversion fast, because cross section of fluid channel is little, flow velocity is fast, and air pressure is little, so the gas outlet is in negative pressure state; A left and right sides that is separately fixed in the air inlet port of two fuse sheets on the fire resisting damper, two fan valves are caught on respectively in the other end, mobile to the left and right, the valve open of fire resisting damper, extension spring are elongated, when the temperature in indoor or the exhaust duct reaches rated value, fuse sheet fusing, extension spring resets, two fan valves move to the centre along track, and fire resisting damper is closed.
The utility model has the advantages that: the curved double action that water conservancy diversion gas and transformation are arranged of water conservancy diversion, the resistance of exhaust duct is little, and capacity is large, and siphonage is obvious, is difficult for flue gas and pours in down a chimney, and fire resisting damper is closed, and pyrotechnics can't spread.
Description of drawings
Accompanying drawing 1 is structural profile schematic diagram of the present utility model.
Accompanying drawing 2 is the top view of the utility model accompanying drawing 1.
Accompanying drawing 3 is the fire-proof valve structure figure in the utility model accompanying drawing 1.
Number in the accompanying drawing is expressed as respectively: exhaust duct 1, fire resisting damper 2, water conservancy diversion are curved 3, air inlet port 4, gas outlet 5, valve 6, track 7, extension spring 8, fuse sheet 9.
The specific embodiment
The specific embodiment is the center of first water conservancy diversion curved 3 being inserted in the exhaust duct 1, identical with the residential building number of plies, contour with floor exhaust duct 1 vertical putting, and mutually docking forms the dwelling house flue gas and vertically concentrates exhaust system; Because water conservancy diversion curved (3) is inserted in the runner center of exhaust duct (1), gas outlet 5 up, the indoor air flow direction of discharge is consistent with the ascending air direction of lower floor, be difficult for producing air curtain, so gas-flow resistance is little, capacity is large, in addition, ascending air three bread of lower floor enclose, pass through fast the periphery of water conservancy diversion curved 3, because cross section of fluid channel is little, flow velocity is fast, pressure is little, so gas outlet 5 is in negative pressure state, siphonage is obvious, flue gas is difficult for pouring in down a chimney, and indoor flue gas is discharged outdoor smoothly; A left and right sides that is separately fixed in the air inlet port 4 of two fuse sheets 9 on the fire resisting damper 2, two fan valves 6 are caught on respectively in the other end, mobile to the left and right, valve 6 is opened, extension spring 8 is elongated, when the temperature in indoor or the exhaust duct 1 reaches rated value, and fuse sheet 9 fusing, extension spring 8 on the valve 6 resets, two fan valves 6 move to the centre along track 7, and fire resisting damper 2 is closed, and pyrotechnics can't spread.
Claims (2)
1. two-door fire resisting damper exhaust duct, comprise exhaust duct (1), water conservancy diversion curved (3) and fire resisting damper (2), it is characterized in that: water conservancy diversion curved (3) is inserted in the runner center of exhaust duct (1), gas outlet (5) up, air inlet port (4) and gas outlet (5) are arranged on the water conservancy diversion curved (3), fire resisting damper (2) is in air inlet port (4), when the temperature in indoor or the exhaust duct (1) reaches rated value, fuse sheet (9) fusing, fire resisting damper (2) is closed.
2. two-door fire resisting damper exhaust duct according to claim 1, it is characterized in that: a left and right sides that is separately fixed in the air inlet port (4) of two fuse sheets (9) on the fire resisting damper (2), two fan valves (6) are caught on respectively in the other end, mobile to the left and right, the valve (6) of fire resisting damper (2) is opened, extension spring (8) is elongated, when the temperature in indoor or the exhaust duct (1) reaches rated value, fuse sheet (9) fusing, extension spring (8) resets, two fan valves (6) move to the centre along track (7), and fire resisting damper (2) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120170 CN202755616U (en) | 2012-03-26 | 2012-03-26 | Double-door exhaust duct with fire damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120170 CN202755616U (en) | 2012-03-26 | 2012-03-26 | Double-door exhaust duct with fire damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755616U true CN202755616U (en) | 2013-02-27 |
Family
ID=47734805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220120170 Expired - Fee Related CN202755616U (en) | 2012-03-26 | 2012-03-26 | Double-door exhaust duct with fire damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301598A (en) * | 2018-01-22 | 2018-07-20 | 深圳市万居科技股份有限公司 | A kind of diversion pipe and fire prevention non-return diaphragm valve |
-
2012
- 2012-03-26 CN CN 201220120170 patent/CN202755616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301598A (en) * | 2018-01-22 | 2018-07-20 | 深圳市万居科技股份有限公司 | A kind of diversion pipe and fire prevention non-return diaphragm valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20180326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |