CN2436598Y - Pressure change type exhaust duct - Google Patents
Pressure change type exhaust duct Download PDFInfo
- Publication number
- CN2436598Y CN2436598Y CN 00242305 CN00242305U CN2436598Y CN 2436598 Y CN2436598 Y CN 2436598Y CN 00242305 CN00242305 CN 00242305 CN 00242305 U CN00242305 U CN 00242305U CN 2436598 Y CN2436598 Y CN 2436598Y
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- CN
- China
- Prior art keywords
- guiding
- pressure
- variable
- transformation
- swash plate
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a shared gas exhaust channel for buildings, particularly a pressure changing type gas exhaust channel without mutual taint of fume and smells among floors. The utility model comprises a main air channel, a sub air channel, a guiding pipe, a pressure changing component, a gas inlet, and a gas outlet of a gas extractor. The guiding pipe of the utility model is composed of a guiding side plate, a guiding flat plate, and a guiding sloping plate, wherein, the guiding sloping plate is positioned on the lower part of the guiding pipe, and the included angle of the guiding sloping plate and the air channel wall of the main air channel is smaller than 30 DEG. The utility model has the characteristics of little resistance of gas exhaust, high efficiency of gas exhaust, etc., and vortex flows are not easy to generate.
Description
The utility model relates to the shared exhaust duct of a kind of building, especially the pressure variable exhausting channel of not mutual smoke blowing, taint of odour between the floor.
Along with the development of environmental protection cause and the people enhancing to environmental protection consciousness, the central exhaust of building, exhaust equipment are also progressively being promoted, and particularly pressure variable exhausting channel is applied in the building.Present pressure variable exhausting channel mainly contains formations such as main air duct, sub-air channel, guide pipe.China utility model patent CN2180711Y had once announced the reasonable pressure variable exhausting channel of a kind of effect, and (patent No.: 94202736.1), its guide pipe is by three flat boards and the dustpan-shaped structure that cambered plate is formed.Because cambered plate is in the bottom of guide pipe, the resistance certain to reflecting to form of lower floor's ascending air, the kinetic energy of ascending air can cause certain loss, air motion speed is slack-off, though through the component for variable-pressure transformation, dynamic and static pressure conversion is still not obvious, the air-flow exhaust resistance is big, and exhaust efficiency is low.
The purpose of this utility model provides that a kind of air-flow exhaust resistance is little, exhaust efficiency is high, the pressure variable exhausting channel of not smoke blowing between each floor, not taint of odour.
To achieve these goals, the utility model comprises: main air duct, sub-air channel, guide pipe, component for variable-pressure, air inlet port, air exhauster exhaust opening, wherein guide pipe is to be made of guiding side plate, guiding flat board, guiding swash plate, the guiding swash plate is positioned at the bottom of guide pipe, and the wind path wall angle of guiding swash plate and main air duct is less than 30 °.Because the angle of guiding swash plate on the guide pipe and wind path wall is very little, and guide pipe will reduce greatly to the resistance of air-flow, it is unimpeded to help air-flow, has improved exhaust efficiency like this.
For the upper air that makes component for variable-pressure steady, reduce the formation of eddy current, component for variable-pressure by transformation swash plate, transformation flat board, transformation arc, form the trihedral structure, the transformation swash plate is positioned at the bottom of component for variable-pressure, the transformation arc is positioned at the top of component for variable-pressure, and the angle of transformation swash plate and wind path wall is less than 30 °.
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is the A-A sectional view of the utility model cross-sectional view.
As seen from Figure 1, Figure 2, the utility model by main air duct 1, sub-air channel 2, guide pipe 4, component for variable-pressure 13, air inlet port 6, air exhauster exhaust opening 7, etc. constitute, guide pipe 4 is fixedly installed in the main air duct 1 with component for variable-pressure 13, guide pipe 4 is installed on the wind path wall 3 of main air duct by guide flange 17, and air inlet port 6 is in the guide pipe 4.Guide pipe 4 is made of guiding side plate 16, guiding flat board 10, guiding swash plate 8, guiding swash plate 8 is positioned at the bottom of guide pipe, the angle α of guiding swash plate 8 and the wind path wall 3 of main air duct 1 should be less than 30 °, not only considered the resistance of wind but also the solid swash plate length of holding concurrently when implementing, and α should be arranged to 20 ° and be advisable.Junction in guiding swash plate 8 and guiding dull and stereotyped 10 is provided with a baffle plate 9, make the cross section of baffle plate 9 corresponding with the cross section of guide pipe 4, baffle plate 9 had both guaranteed that the waste gas that enters through air inlet port 6 does not form eddy current at angle α place, played the connection integrity to guide pipe again like this.Component for variable-pressure 13 is formed the trihedral structure by transformation swash plate 12, transformation flat board 14, transformation arc 15, transformation swash plate 12 is positioned at the bottom of component for variable-pressure, transformation arc 15 is positioned at the top of component for variable-pressure, the angle β of transformation swash plate 12 and wind path wall is less than 30 °, transformation dull and stereotyped 14 is substantially parallel with wind path wall, the component for variable-pressure windage is little like this, also is difficult for producing eddy current.Transformation arc 15 and transformation swash plate 12 are linked to be an integral body by transformation flat board 14, form whole component for variable-pressure 13, and component for variable-pressure 13 is fixed in the main air duct by transformation flange 11.During installation, the middle part of component for variable-pressure 13 should with the upper end of guide pipe in identical position height.In order to prevent to be provided with sub-air channel 2 because of in the return air waste gas inlet chamber, the sub-air channel 2 between the floor is separated by division board 5, and the position height of air exhauster exhaust opening 7 should be lower than the position height of air inlet port 6.During use, indoor exhaust air is in air exhauster exhaust opening 7 is discharged to sub-air channel 2, and waste gas is entered in the guide pipe 4 by air inlet port 6 more then, via the air-negative-pressure in the main air duct 1 waste gas is upwards flowed by guide pipe, is discharged to sky along main air duct at last.Reinforced concrete prefabricated forming adopted in main air duct, sub-air channel, and guide pipe, component for variable-pressure, division board adopt magnesite product or plastic products to process.In order in transportation, to prevent to damage product, be provided with reinforcing rib at every joint exhaust duct four jiaos.The specification size of exhaust duct and the cross-sectional area in main air duct and sub-air channel can be made according to the height of user what and floor.
Claims (2)
1, a kind of pressure variable exhausting channel, comprise: main air duct (1), sub-air channel (2), guide pipe (4), component for variable-pressure (13), air inlet port (6), air exhauster exhaust opening (7), it is characterized in that guide pipe (4) is to be made of guiding side plate (16), guiding dull and stereotyped (10), guiding swash plate (8), guiding swash plate (8) is positioned at the bottom of guide pipe (4), and wind path wall (3) angle of guiding swash plate (8) and main air duct is less than 30 °.
2, pressure variable exhausting channel according to claim 1, it is characterized in that described component for variable-pressure (13) forms the trihedral structure by transformation swash plate (12), transformation flat board (14), transformation arc (15), transformation swash plate (12) is positioned at the bottom of component for variable-pressure, transformation arc (15) is positioned at the top of component for variable-pressure, and the angle of transformation swash plate (12) and wind path wall is less than 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00242305 CN2436598Y (en) | 2000-07-04 | 2000-07-04 | Pressure change type exhaust duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00242305 CN2436598Y (en) | 2000-07-04 | 2000-07-04 | Pressure change type exhaust duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436598Y true CN2436598Y (en) | 2001-06-27 |
Family
ID=33602491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00242305 Expired - Fee Related CN2436598Y (en) | 2000-07-04 | 2000-07-04 | Pressure change type exhaust duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436598Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689090A (en) * | 2019-03-12 | 2020-09-22 | 青岛海硕环保设备有限公司 | Garbage can |
-
2000
- 2000-07-04 CN CN 00242305 patent/CN2436598Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689090A (en) * | 2019-03-12 | 2020-09-22 | 青岛海硕环保设备有限公司 | Garbage can |
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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 |