CN2447646Y - Variable-pressure non-return air-exhausting flue structure - Google Patents
Variable-pressure non-return air-exhausting flue structure Download PDFInfo
- Publication number
- CN2447646Y CN2447646Y CN 00250115 CN00250115U CN2447646Y CN 2447646 Y CN2447646 Y CN 2447646Y CN 00250115 CN00250115 CN 00250115 CN 00250115 U CN00250115 U CN 00250115U CN 2447646 Y CN2447646 Y CN 2447646Y
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- China
- Prior art keywords
- air duct
- variable
- main air
- utility
- guide pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a variable-pressure non-return air-exhausting channel structure which is composed of a main air channel, a pressure changing plate, a guiding pipe, and a branch air channel, wherein, the guiding pipe is a 90 DEG bent pipe, and the pressure changing plate is fixed on the side wall of the main air channel. The utility model thoroughly eliminates the phenomena of the taint of fume and smells, and the back flow of head wind, raises the fume exhausting efficiency, simplifies construction procedures, and guarantees the quality of the air channels.
Description
The utility model relates to a kind of transformation non-return exhausting duct structure.
For solving the kitchen fume problem, in building construction, all designed exhausting duct.In integrated air exhaust road system, operating condition is the parallel running of many typhoons machine, can occur two problems that are not easy to solve usually: the one, easily collaborate mutually between each inlet, and do not reach the effect of discharging dusty gas fully; The 2nd, phase mutual interference in each fan operation influences the performance of gas extraction system.
The purpose of this utility model is a kind of transformation non-return exhausting duct structure of design, reaches to prevent to concentrate collaborating mutually and overcoming the problem of parallel running blower fan phase mutual interference of each inlet of exhaust duct system.
The utility model is achieved in that transformation non-return exhausting duct structure, form by main air duct 1, variable-pressure plate 2, guide pipe 3, branch air duct 4, guide pipe 3 be 90 the degree bend pipes and be installed in main air duct 1 and branch air duct 4 between dividing plate 6 on, its air inlet is in branch air duct 4, and the gas outlet is positioned at main air duct 1; Variable-pressure plate is fixed on the sidewall of main air duct 1, it is characterized in that: described variable-pressure plate is parabola shaped structure, and its top point 5 is a little more than the outlet of guide pipe 3.
Technological progress of the present utility model is: the phenomenon that this structure has thoroughly been eliminated chimney smoke leakage in the past, taint of odour, poured in down a chimney against the wind, improved smoke exhaust efficiency greatly, and simplified operational procedure, guaranteed the quality in air channel.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
As follows in conjunction with Fig. 1 the utility model embodiment: among Fig. 1, the utility model mainly is made up of main air duct 1, variable-pressure plate 2, guide pipe 3, branch air duct 4, guide pipe 3 be 90 the degree bend pipes and be installed in main air duct 1 and branch air duct 4 between dividing plate 6 on, its air inlet is in branch air duct 4, and the gas outlet is positioned at main air duct 1; The effect of guide pipe is to eliminate the air curtain that is caused when being unkitted the guiding adapter retardance of lower floor's air-flow is disturbed, and guide pipe has certain ejector action simultaneously, makes lower floor's exhaust unobstructed each other.Variable-pressure plate is fixed on the sidewall of main air duct 1, and variable-pressure plate is parabola shaped structure, and its top point 5 is a little more than the outlet of guide pipe 3.Because variable-pressure plate 2 is parabola shaped structure, so little to air drag, transformation is stable; Variable-pressure plate subcontract airflow cross section is to increase dynamic pressure, reduce static pressure, cause unactuated branch air duct of blower fan and main air duct interface static pressure to be less than or equal to the atmospheric pressure of system entry, thereby prevented that gas flows into this branch air duct in the main air duct, promptly prevented the problem of collaborating mutually.
Claims (1)
1, transformation non-return exhausting duct structure, form by main air duct (1), variable-pressure plate (2), guide pipe (3), branch air duct (4), guide pipe (3) be 90 the degree bend pipes and be installed in main air duct (1) and branch air duct (4) between dividing plate (6) on, its air inlet is in branch air duct (4), the gas outlet is positioned at main air duct (1), variable-pressure plate (2) is fixed on the sidewall of main air duct (1), it is characterized in that: described variable-pressure plate (2) is parabola shaped structure, and its top point (5) is a little more than the outlet of guide pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250115 CN2447646Y (en) | 2000-09-13 | 2000-09-13 | Variable-pressure non-return air-exhausting flue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250115 CN2447646Y (en) | 2000-09-13 | 2000-09-13 | Variable-pressure non-return air-exhausting flue structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2447646Y true CN2447646Y (en) | 2001-09-12 |
Family
ID=33608377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00250115 Expired - Fee Related CN2447646Y (en) | 2000-09-13 | 2000-09-13 | Variable-pressure non-return air-exhausting flue structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2447646Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100582594C (en) * | 2007-10-14 | 2010-01-20 | 中铁二院工程集团有限责任公司 | Ventilating current equalizer |
| CN103123118A (en) * | 2012-06-18 | 2013-05-29 | 高长庆 | Efficient universal indoor smokeless outdoor installing dual cyclone fan stamping tornado smoke purifying and dust removing chimney |
-
2000
- 2000-09-13 CN CN 00250115 patent/CN2447646Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100582594C (en) * | 2007-10-14 | 2010-01-20 | 中铁二院工程集团有限责任公司 | Ventilating current equalizer |
| CN103123118A (en) * | 2012-06-18 | 2013-05-29 | 高长庆 | Efficient universal indoor smokeless outdoor installing dual cyclone fan stamping tornado smoke purifying and dust removing chimney |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |