CN2570370Y - Constant flow rate pressure swing type air duct - Google Patents
Constant flow rate pressure swing type air duct Download PDFInfo
- Publication number
- CN2570370Y CN2570370Y CN 02278161 CN02278161U CN2570370Y CN 2570370 Y CN2570370 Y CN 2570370Y CN 02278161 CN02278161 CN 02278161 CN 02278161 U CN02278161 U CN 02278161U CN 2570370 Y CN2570370 Y CN 2570370Y
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- air duct
- main air
- channel
- gas
- duct
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Abstract
The utility model discloses a pressure change type gas exhaust channel with a constant flow rate, which relates to the field of ventilation and smoke exhaust for civil architectures, particularly a vertical smoke channel which is used in a centralized exhaust system for kitchens and toilets in dwellings. The pressure change type gas exhaust channel with a constant flow rate is composed of a main gas channel, and one-level to multi-level branch gas channels, wherein, the main gas channel is a cylinder with a vertical cavity. The branch gas channels which are composed of guide plates and pressure change plates are arranged one side of the main gas channel connected with a check valve, wherein, the guide plates are arranged on the lower edge of a smoke inlet port, and the pressure change plates are arranged on the upper edge of the smoke inlet port. Each pressure change plate is provided with an upwards bent arc-shaped wall face at the side corresponding to the guide plates. The utility model has the advantages of reasonable design and simple structure. The design of the arc line shape of the branch gas channel enables smoke gas from a fume extractor to be smoothly exhausted towards the main gas channel. In the whole gas exhaust channel, no dead angle exists. A gas exhaust channel system smoothly exhausts gas and forms a constant rate. The utility model particularly meets the requirements of new built dwellings by the construction ministry.
Description
Technical field
The utility model relates to civilian construction ventilation smoke exhaust field, and the vertical gas pass of using in the exhaust system is concentrated in lavatory, particularly a kind of dwelling house kitchen.
Background technology
In order to protect urban environment, to reduce and pollute, help the people's physical and mental health, No. 295 literary compositions that nation-building portion issued in 1999 require: lavatory, newly-built dwelling house kitchen must be provided with the vertical out-fall system.Air channel in the vertical out-fall system described here, the air draft effect has the pressure swing type exhaust system of " BK-99-01 " of the design of Beijing unit preferably, it is made up of main air duct and secondary air flue, its variable-pressure plate and guide strip are arranged at the both sides of main air duct respectively, therefore, its complex structure, the cost height is installed inconvenience.
Summary of the invention
The purpose of this utility model provides a kind of uniform flow pressure-varying air-exhausting duct, its simple structure, and cost is low, be easy to make and install, and the air draft effect is fine.
The purpose of this utility model is achieved in that the uniform flow pressure-varying air-exhausting duct is made up of main air duct and one to multiple level branch air duct, main air duct is a cylindrical shell with vertical cavity, the branch air duct of being made up of guide strip and variable-pressure plate is arranged on link to each other with check (non-return) valve each progressive mouth place of a side of main air duct, the guide strip that arcwall face is bent upwards is arranged on the into lower edge of mouth, variable-pressure plate is arranged on the upper edge of mouth between guide strip and main air duct inside wall, the side that variable-pressure plate is relative with guide strip is the arcwall face that is bent upwards, and its opposite side links to each other with the main air duct inside wall.
Described variable-pressure plate is the hollow body of solid, hollow body or upper surface open-ended.
The shape of cross section of described main air duct cavity is rectangle, square, circle, ellipse or other shape.
Described branch air duct and main air duct can be made respectively, and the branch air duct of integral manufacturing directly inserts the main air duct relevant position and installs.
The utility model is reasonable in design, simple structure, and the flue gas that the camber line shape design of branch air duct is come out smoke exhaust ventilator very successfully discharges to main air duct via branch airway.For the flow velocity that makes whole main air duct equates everywhere, the area of the deflation area of main air duct is according to the number difference of its lower floor's branch air duct different (number of the leaving area of the leaving area=branch air duct of main air duct * lower floor's branch air duct) on each floor level, thereby, branch air ducts at different levels are according to the difference of its residing floor, the front position of guide strip is different, by adjusting the shape and size of variable-pressure plate, make the leaving area unanimity of each branch air duct, that is to say that the flow velocity of the flow velocity that makes branch air duct and main air duct is consistent.Design of the present utility model is not collaborated the exhaust of each floor mutually, and the flue gas that lower floor's branch air duct is discharged is walked from main air duct, and main air duct also is included in the exhaust of this layer branch air duct, and the rest may be inferred until roof; Do not have the dead angle in the whole exhast duct, the exhast duct system exhaust is unobstructed, forms uniform flow.
Description of drawings
Accompanying drawing 1 is that branch air duct, main air duct cooperate schematic diagram;
Accompanying drawing 2 is A-A generalized sections in the accompanying drawing 1.
Accompanying drawing acceptance of the bid keep the score state as follows: 1---main air duct; 2---branch air duct; 3---guide strip; 4---variable-pressure plate; 5---the crooked cambered surface of guide strip; 6---the crooked cambered surface of variable-pressure plate; 7---the variable-pressure plate upper surface; 8---the main air duct housing; 9---the branch air duct deflation area; 10---the main air duct deflation area; 11---check (non-return) valve.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.Shown in accompanying drawing 1,2, main air duct 1 is that cavity cross section is rectangular upright cylindrical shell, and branch air ducts 2 at different levels are arranged on leaning on the check (non-return) valve one side inwall of main air duct 1 housing 8.The crooked cambered surface 5 of guide strip 3 extends upwardly, according to the difference of floor of living in, and the position difference of guide strip upper end, the area of the main air duct deflation area 10 that is separated out between its institute is difference (number of main air duct deflation area area=branch air duct deflation area area * lower floor's branch air duct) also; Difference because of the guide strip position, the shape and size of variable-pressure plate 4 all are provided with difference in the branch air ducts at different levels, just can make the deflation area 9 area unanimities of each branch air duct, thereby guarantee that the flow of each branch air duct is consistent with flow velocity, guarantee that also main air duct is consistent with the flow velocity of branch air duct.
Exhaust duct of the present utility model, its main air duct, branch air duct are prefabricated component independently separately, and various assemble sequence and mode can be arranged, and for for simplicity, branch air duct can be made up as a wholely, insert main air duct then and install.The utility model meets the requirement of the Ministry of Construction to newly-built dwelling house especially, thereby is with a wide range of applications.
Claims (4)
1, a kind of uniform flow pressure-varying air-exhausting duct, form by main air duct and one to multiple level branch air duct, main air duct is a cylindrical shell with vertical cavity, it is characterized in that: the branch air duct of being made up of guide strip (3) and variable-pressure plate (4) (2) is arranged on link to each other with check (non-return) valve (11) each progressive mouth place of a side of main air duct (1), the guide strip (3) that arcwall face (5) is bent upwards is arranged on the into lower edge of mouth, variable-pressure plate (4) is arranged on into, and the upper edge of mouth is positioned between guide strip (3) and main air duct (1) inside wall, the side that variable-pressure plate (4) is relative with guide strip (3) is the arcwall face (6) that is bent upwards, and its opposite side links to each other with main air duct (1) inside wall.
2, exhast duct according to claim 1 is characterized in that: described variable-pressure plate (4) is the hollow body of solid, hollow body or upper surface open-ended.
3, exhast duct according to claim 1 is characterized in that: the shape of cross section of main air duct (1) cavity is rectangle, square, circle, ellipse or other shape.
4, according to the described exhast duct of arbitrary claim in the claim 1 to 3, it is characterized in that: branch air duct (2) and main air duct (1) are prefabricated component independently separately, and the branch air duct of integral manufacturing (2) directly inserts main air duct (1) and installs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278161 CN2570370Y (en) | 2002-06-28 | 2002-06-28 | Constant flow rate pressure swing type air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278161 CN2570370Y (en) | 2002-06-28 | 2002-06-28 | Constant flow rate pressure swing type air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2570370Y true CN2570370Y (en) | 2003-09-03 |
Family
ID=33741554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278161 Expired - Fee Related CN2570370Y (en) | 2002-06-28 | 2002-06-28 | Constant flow rate pressure swing type air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2570370Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442650A (en) * | 2018-05-21 | 2018-08-24 | 平湖市凯宇鲜菜有限公司 | Guide vane and flue with the guide vane |
| CN111964093A (en) * | 2020-08-07 | 2020-11-20 | 北京英翔博瑞耐火材料科技有限公司 | Natural power air cooling and flue gas de-whitening device and flue gas de-whitening method |
-
2002
- 2002-06-28 CN CN 02278161 patent/CN2570370Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442650A (en) * | 2018-05-21 | 2018-08-24 | 平湖市凯宇鲜菜有限公司 | Guide vane and flue with the guide vane |
| CN108442650B (en) * | 2018-05-21 | 2024-01-16 | 平湖市凯宇鲜菜有限公司 | Air guide piece and flue with same |
| CN111964093A (en) * | 2020-08-07 | 2020-11-20 | 北京英翔博瑞耐火材料科技有限公司 | Natural power air cooling and flue gas de-whitening device and flue gas de-whitening method |
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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 |