CN102296788A - Variable-pressure type exhaust passage - Google Patents
Variable-pressure type exhaust passage Download PDFInfo
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- CN102296788A CN102296788A CN2011101596511A CN201110159651A CN102296788A CN 102296788 A CN102296788 A CN 102296788A CN 2011101596511 A CN2011101596511 A CN 2011101596511A CN 201110159651 A CN201110159651 A CN 201110159651A CN 102296788 A CN102296788 A CN 102296788A
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Abstract
The invention belongs to a variable-pressure type exhaust passage which comprises a exhaust passage, a guide pipe and a variable-pressure part, wherein the horizontal section area in the exhaust passage, the horizontal section area at an outlet of the guide pipe and the horizontal section area at the maximum area of the variable-pressure part are structurally in proportion. According to invention, local static pressure negative values at all air inlets of the variable-pressure type exhaust passage can be effectively ensured to be minimal and the existence of gas blow-by phenomenon among kitchens in all layers is effectively avoided, and the advantages of saving material and reducing cost are achieved.
Description
Technical field
The invention belongs to a kind of pressure variable exhausting channel.
Background technology
The relevant design specifications requirement of dwelling house, the kitchen planted agent is provided with common exhaust duct.This pipeline should be able to satisfy the necessary ventilation of kitchen mist extractor, and should have the function of anti-taint of odour, string sound.According to this instructions for use, adopt by same upright position, the exhaust opening of each layer oil-containing air exhauster for kitchen combines in the air channel, to the pipe-line system of top atmospheric dilution.Because the setting of this pipe-line system, each layer kitchen that is in same upright position is interconnected, and when certain oil-containing air exhauster for kitchen starts in pipe-line system forced exhaust in system's (with each floor of Stall), for being barotropic state everywhere in the common exhaust duct system that only adopts a simple air channel structure, then all not the smoke exhaust intake of other shut down condition of the disconnected device of handicapping the string wind of inequality is all arranged, " gas blowby ", " scurrying flavor " phenomenon of each interlayer promptly taken place.A very important instructions for use of house kitchen common exhaust duct system exactly will be under the prerequisite that satisfies the necessary vented exhaust amount in kitchen, the function of use of should have not " gas blowby ", " not scurrying flavor ".
China utility model patent CN2180711 has announced a kind of pressure variable exhausting channel, it mainly is because the trunk line of exhaust is formed with component for variable-pressure, guide pipe on the wall that sets within it, trunk line is provided with air inlet port, guide pipe is connected with air inlet port, its component for variable-pressure is the trihedral parts that are made of head slab, positive flat board and bottom panel, its both sides press closer on the inwall of the trunk line of a corresponding side, because the both sides of component for variable-pressure press closer on the trunk line inwall.Its operating principle mainly is according to dynamic and static pressure transfer principle, that is: Pq=Pj+Pd in the aerodynamics; The arbitrary flow area total head of Pq-value; Pj-Pq section static pressure; Pd-Pq section dynamic pressure value.The concrete practice is; it is component for variable-pressure that local member is set in pipe-line system; primary air flows to and the size of flow area to change; press and quiet moving conversion thereby eliminate the retardation of air curtain and finish at ad-hoc location; make under the shared ventilation system operation condition that each layer smoke exhaust of all various combinations open, stop forming; be and respectively inhale the local static pressure Pj of population (being air intake)＜0, ingenious and simple and direct " gas blowby " that prevents each layer kitchen effectively under the stopped status.At present, this pressure swing type common exhaust duct system popularization and application day by day.
But the component for variable-pressure of different volumes blindly is set in common exhaust duct, this transformer action is descended, also can limit the decline that hinders common exhaust duct air draft effect, cause result of use not good.
Summary of the invention
The present invention seeks to design a kind of pressure variable exhausting channel, the proportionate relationship of each parts in the exhaust duct is provided, make the local static pressure negative value of each air intake minimum of pressure variable exhausting channel, prevented that effectively " gas blowby " phenomenon in each layer kitchen from existing, also have the advantage of saving material and reducing cost.For this reason, the present invention adopts and is made up of exhaust duct, guide pipe and component for variable-pressure;
If: horizontal sectional area is Z in the exhaust duct, and guide pipe exit horizontal sectional area is Y, and component for variable-pressure maximum area place horizontal sectional area is X;
(1) then the 1st of 6～18 floors the layer; Z: Y: X is 1: 0.18～0.3: 0;
The 2nd～4 layer; Z: Y: X is 1: 0.18～0.3: 0.11～0.22;
The 5th～7 layer; Z: Y: X is 1: 0.18～0.3: 0.05～0.09;
The 8th～18 layer; Z: Y: X is 1: 0.18～0.3: 0.04～0.06;
(2) then the 1st of 24～40 floors the layer; Z: Y: X is 1: 0.07～0.12: 0;
The 2nd～4 layer; Z: Y: X is 1: 0.07～0.12: 0.16～0.27;
The 5th～8 layer; Z: Y: X is 1: 0.07～0.12: 0.12～0.17;
The 9th～14 layer; Z: Y: X is 1: 0.07～0.12: 0.06～0.11;
The 15th～30 layer; Z: Y: X is 1: 0.07～0.12: 0.03～0.09;
The 31st～40 layer; Z: Y: X is 1: 0.07～0.12: 0.02～0.03.
Described guide pipe exit horizontal sectional area and component for variable-pressure maximum area place horizontal sectional area are in the same plane.The said structure design has reached purpose of the present invention.
The proportionate relationship that each parts in the exhaust duct are provided of the present invention makes the local static pressure negative value of each air intake minimum of pressure variable exhausting channel, has prevented that effectively " gas blowby " phenomenon in each layer kitchen from existing, and also has the advantage of saving material and reducing cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A structural representation of Fig. 1.
Fig. 3 is that the B of Fig. 2 is to the cross-sectional structure schematic diagram.
Fig. 4 is a user mode structural representation of the present invention.
Specific embodiments
As shown in Figures 1 to 4, a kind of pressure variable exhausting channel, formed by exhaust duct 4, guide pipe 2 and component for variable-pressure 1, the communicate air intake 3 in each kitchen of exhaust duct of guide pipe lower end, the guide pipe lower end is circular-arc, is beneficial to the flue gas that the air intake from the kitchen the enters drainage that makes progress parallel with the exhaust duct updraft.
The present invention establishes: horizontal sectional area is Z in the exhaust duct 4, and guide pipe exit 5 horizontal sectional areas are Y, and component for variable-pressure 1 maximum area place horizontal sectional area is X;
(1) then the 1st of 6～18 floors the layer; Z: Y: X is 1: 0.18～0.3: 0, does not promptly establish component for variable-pressure at the 1st layer;
The 2nd～4 layer; Z: Y: X is 1: 0.18～0.3: 0.11～0.22;
The 5th～7 layer; Z: Y: X is 1: 0.18～0.3: 0.05～0.09;
The 8th～18 layer; Z: Y: X is 1: 0.18～0.3: 0.04～0.06;
(2) then the 1st of 24～40 floors the layer; Z: Y: X is 1: 0.07～0.12: 0, does not promptly establish component for variable-pressure at the 1st layer;
The 2nd～4 layer; Z: Y: X is 1: 0.07～0.12: 0.16～0.27;
The 5th～8 layer; Z: Y: X is 1: 0.07～0.12: 0.12～0.17;
The 9th～14 layer; Z: Y: X is 1: 0.07～0.12: 0.06～0.11;
The 15th～30 layer; Z: Y: X is 1: 0.07～0.12: 0.03～0.09;
The 31st～40 layer; Z: Y: X is 1: 0.07～0.12: 0.02～0.03.
Described guide pipe exit horizontal sectional area and component for variable-pressure maximum area place horizontal sectional area are in the same plane.
Embodiment 1: described guide pipe exit horizontal sectional area and component for variable-pressure maximum area place horizontal sectional area are in the same plane.If: horizontal sectional area is Z in the exhaust duct, and guide pipe exit 5 horizontal sectional areas are Y, and component for variable-pressure maximum area place horizontal sectional area is X, then the 1st of 6 floors the layer 4; Z: Y: X is 1: 0.3: 0, does not promptly establish component for variable-pressure at the 1st layer; The 2nd～4 layer 42; Z: Y: X is 1: 0.3: 0.22; The 5th～6 layer; Z: Y: X is 1: 0.3: 0.05.Exhaust duct is not held 41 numbers that are positioned at this floor to push up outer and is connected with blast cap 6, to take shelter from rain and water conservancy diversion.The present invention can guarantee effectively that pressure variable exhausting channel can make the local static pressure negative value of each air intake minimum, has prevented that effectively " gas blowby " phenomenon in each layer kitchen from existing.
Embodiment 2: as different from Example 1: the 1st layer of 12 floors; Z: Y: X is 1: 0.23: 0, does not promptly establish component for variable-pressure at the 1st layer; The 2nd～3 layer; Z: Y: X is 1: 0.23: 0.16; The 4th～5 layer; Z: Y: X is 1: 0.23: 0.07; The 6th～12 layer 43; Z: Y: X is 1: 0.23: 0.04.
Embodiment 3: as different from Example 1: the 1st layer of 18 floors; Z: Y: X is 1: 0.18: 0, does not promptly establish component for variable-pressure at the 1st layer; The 2nd～4 layer; Z: Y: X is 1: 0.18: 0.17; The 5th～7 layer; Z: Y: X is 1: 0.18: 0.09; The 8th～18 layer; Z: Y: X is 1: 0.18: 0.06.
Embodiment 4: as different from Example 1: the 1st layer of 24 floors; Z: Y: X is 1: 0.12: 0, does not promptly establish component for variable-pressure at the 1st layer; The 2nd～4 layer; Z: Y: X is 1: 0.12: 0.16; The 5th～8 layer; Z: Y: X is 1: 0.12: 0.12; The 9th～12 layer; Z: Y: X is 1: 0.12: 0.06; The 13rd～24 layer; Z: Y: X is 1: 0.12: 0.03.
Embodiment 5: as different from Example 1: the 1st layer of 30 floors; Z: Y: X is 1: 0.09: 0, does not promptly establish component for variable-pressure at the 1st layer; The 2nd～4 layer; Z: Y: X is 1: 0.09: 0.27; The 5th～8 layer; Z: Y: X is 1: 0.09: 0.17; The 9th～14 layer; Z: Y: X is 1: 0.09: 0.11; The 15th～30 layer; Z: Y: X is 1: 0.09: 0.04.
Embodiment 6: as different from Example 1: the 1st layer of 40 floors; Z: Y: X is 1: 0.07: 0, does not promptly establish component for variable-pressure at the 1st layer; The 2nd～4 layer; Z: Y: X is 1: 0.07: 0.21; The 5th～10 layer; Z: Y: X is 1: 0.07: 0.13; The 11st～18 layer; Z: Y: X is 1: 0.07: 0.09; The 19th～40 layer 44; Z: Y: X is 1: 0.07: 0.03.
In a word, the present invention can effectively guarantee the local static pressure negative value of each air intake minimum of pressure variable exhausting channel, has prevented that effectively " gas blowby " phenomenon in each layer kitchen from existing, and also has the advantage of saving material and reducing cost.
Claims (2)
1. a pressure variable exhausting channel is made up of exhaust duct, guide pipe and component for variable-pressure, it is characterized in that:
If: horizontal sectional area is Z in the exhaust duct, and guide pipe exit horizontal sectional area is Y, and component for variable-pressure maximum area place horizontal sectional area is X;
(1) then the 1st of 6～18 floors the layer; Z: Y: X is 1: 0.18～0.3: 0;
The 2nd～4 layer; Z: Y: X is 1: 0.18～0.3: 0.11～0.22;
The 5th～7 layer; Z: Y: X is 1: 0.18～0.3: 0.05～0.09;
The 8th～18 layer; Z: Y: X is 1: 0.18～0.3: 0.04～0.06;
(2) then the 1st of 24～40 floors the layer; Z: Y: X is 1: 0.07～0.12: 0;
The 2nd～4 layer; Z: Y: X is 1: 0.07～0.12: 0.16～0.27;
The 5th～8 layer; Z: Y: X is 1: 0.07～0.12: 0.12～0.17;
The 9th～14 layer; Z: Y: X is 1: 0.07～0.12: 0.06～0.11;
The 15th～30 layer; Z: Y: X is 1: 0.07～0.12: 0.03～0.09;
The 31st～40 layer; Z: Y: X is 1: 0.07～0.12: 0.02～0.03.
2. by the described pressure variable exhausting channel of claim 1, it is characterized in that: described guide pipe exit horizontal sectional area and component for variable-pressure maximum area place horizontal sectional area are in the same plane.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101596511A CN102296788A (en) | 2011-06-15 | 2011-06-15 | Variable-pressure type exhaust passage |
| CN2012101539176A CN102661027A (en) | 2011-06-15 | 2012-05-18 | Variable pressure type exhaust air duct |
| CN2012202229859U CN202559663U (en) | 2011-06-15 | 2012-05-18 | Variable pressure type exhaust passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101596511A CN102296788A (en) | 2011-06-15 | 2011-06-15 | Variable-pressure type exhaust passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102296788A true CN102296788A (en) | 2011-12-28 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101596511A Pending CN102296788A (en) | 2011-06-15 | 2011-06-15 | Variable-pressure type exhaust passage |
| CN2012202229859U Expired - Fee Related CN202559663U (en) | 2011-06-15 | 2012-05-18 | Variable pressure type exhaust passage |
| CN2012101539176A Pending CN102661027A (en) | 2011-06-15 | 2012-05-18 | Variable pressure type exhaust air duct |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202229859U Expired - Fee Related CN202559663U (en) | 2011-06-15 | 2012-05-18 | Variable pressure type exhaust passage |
| CN2012101539176A Pending CN102661027A (en) | 2011-06-15 | 2012-05-18 | Variable pressure type exhaust air duct |
Country Status (1)
| Country | Link |
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| CN (3) | CN102296788A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605934A (en) * | 2011-12-31 | 2012-07-25 | 徐仁春 | Gas delivery device and installation method thereof |
| CN102661027A (en) * | 2011-06-15 | 2012-09-12 | 林润泉 | Variable pressure type exhaust air duct |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2788073B1 (en) * | 1999-01-05 | 2001-03-16 | Ind Regionale Batiment | CHIMNEY DUCT AS WELL AS FIREPLACES USEFUL FOR MAKING SUCH A DUCT |
| FR2793509B1 (en) * | 1999-05-12 | 2001-06-29 | Materiaux De La Nive Atel | HOLDING STRUCTURE OF A SMOKE DUCT IN ROOF CROSSING |
| CN2494859Y (en) * | 2000-07-18 | 2002-06-12 | 济南市历城区东效第一建筑安装工程公司预制厂 | Shared exhaust passage for civil building |
| CN2786240Y (en) * | 2005-02-07 | 2006-06-07 | 北京市都龙智能建筑配套设备有限责任公司 | Lower air intake and variable pressure type exhaust passage |
| CN100410474C (en) * | 2005-09-27 | 2008-08-13 | 张琦 | Parallel pressure change exhausting duct structure for residential building |
| CN102296788A (en) * | 2011-06-15 | 2011-12-28 | 林润泉 | Variable-pressure type exhaust passage |
| CN202117290U (en) * | 2011-06-15 | 2012-01-18 | 林润泉 | Variable-pressure exhaust passage |
-
2011
- 2011-06-15 CN CN2011101596511A patent/CN102296788A/en active Pending
-
2012
- 2012-05-18 CN CN2012202229859U patent/CN202559663U/en not_active Expired - Fee Related
- 2012-05-18 CN CN2012101539176A patent/CN102661027A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661027A (en) * | 2011-06-15 | 2012-09-12 | 林润泉 | Variable pressure type exhaust air duct |
| CN102605934A (en) * | 2011-12-31 | 2012-07-25 | 徐仁春 | Gas delivery device and installation method thereof |
| CN102605934B (en) * | 2011-12-31 | 2015-08-05 | 徐仁春 | A kind of charge delivery mechanism and mounting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202559663U (en) | 2012-11-28 |
| CN102661027A (en) | 2012-09-12 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20111228 |