CN102864913B - Variable pressure jet type house exhaust passage system - Google Patents
Variable pressure jet type house exhaust passage system Download PDFInfo
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- CN102864913B CN102864913B CN201210374261.0A CN201210374261A CN102864913B CN 102864913 B CN102864913 B CN 102864913B CN 201210374261 A CN201210374261 A CN 201210374261A CN 102864913 B CN102864913 B CN 102864913B
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Abstract
The invention belongs to a variable pressure jet type house exhaust passage system. Throat-shaped variable pressure components are placed on two side walls at the lower end of a same exhaust passage with another exhaust passage at the upper end adjacent to a smoke inlet of an exhaust passage. A jet smoke guide fire drawing cylinder is arranged in the smoke inlet of the exhaust passage, a smoke guide inlet at the lower end of the jet smoke guide fire drawing cylinder is connected with the exhausting passage wall on the periphery of the smoke inlet through a connection board, and a smoke guide outlet at the upper end of the jet smoke guide fire drawing cylinder is placed in a throat-shaped variable pressure passage which is formed by the throat-shaped variable pressure components and arranged on the inner side at the lower end of the another exhaust passage at the upper end adjacent to the smoke inlet. According to the variable pressure jet type house exhaust passage system, a reasonable design of the variable pressure components and the smoke inlet is provided, the variable pressure components and the jet smoke guide fire drawing cylinder act together, and the proportion of components in the exhaust passage is reasonable, so that local static pressure negative values of smoke inlets of the variable pressure exhaust passages are the best, the phenomenon of 'blow-by' of kitchens of various layers is effectively prevented, and the system has the advantages of being easy to manufacture and mount, saving materials and reducing cost.
Description
Technical field
The invention belongs to a kind of variable pressure jet type house exhaust passage system.
Background technology
At present, shared extract duct is set or claims exhaust duct in the kitchen in each building or washroom.This pipeline can meet the necessary ventilation of the mist extractor of kitchen or washroom, should have the function of anti-taint of odour, string sound for house especially kitchen.This is that the exhaust opening of each layer oil-containing air exhauster for kitchen combines in an air channel, then exhaust duct enters the pipe-line system of diluting in air by being directed at top.The setting of this pipe-line system makes each layer kitchen being in same upright position be interconnected, and in this system (each floor with Stall) when certain oil-containing air exhauster for kitchen starts forced exhaust in pipe-line system, barotropic state is everywhere for only adopting in the common exhaust duct system of a simple air channel structure, make the smoke exhaust intake of other shut down condition all have the string wind of inequality, namely there occurs " gas blowby ", " altering taste " phenomenon of each interlayer.The instructions for use that of house kitchen common exhaust duct system is very important, exactly will under the prerequisite meeting the necessary ventilation tolerance in kitchen, the using function of should have not " gas blowby ", " not altering taste ".
According to hydromechanical general principle---wall attachment effect, only with a small amount of compressed air as power source, ambient air just can be driven to flow formation high pressure, high velocity air.Wall attachment effect is simple and easy to use, can be used for transmission air and scavenges.Prior art utilizes this principle; namely Local Members and component for variable-pressure are set in pipe-line system; to change the size of the primary air flow direction and flow area in exhaust duct; thus eliminate the retardation of air curtain and complete the dynamic conversion of pressure Motion and repose at ad-hoc location; each layer smoke exhaust of all various combinations is opened, stop formed shared ventilation system operation condition under; each suction population (namely entering mouth) local static pressure under in stopped status is zero or negative pressure, ingenious and simple and direct " gas blowby " that effectively prevent each layer kitchen.At present, this pressure swing type common exhaust duct system popularization and application day by day.But component for variable-pressure with enter mouth and design unreasonable, the local decompression of entering mouth is not enough, and component for variable-pressure is difficult to loading, and without other auxiliary effect except component for variable-pressure.
On the other hand, but the component for variable-pressure of different volumes is blindly set in common exhaust duct, often makes its transformer action decline, also can hinder the decline of common exhaust duct exhaust effect, cause result of use not good.
Summary of the invention
The object of the invention is to design a kind of variable pressure jet type house exhaust passage system, rational component for variable-pressure is provided and enters mouth design, component for variable-pressure and jet is had to lead the acting in conjunction of cigarette fire poking barrel, in exhaust duct, the ratio of each parts is reasonable, what make pressure variable exhausting channel respectively enters mouth local static pressure negative value the best, effectively prevent " gas blowby " phenomenon in each layer kitchen, also have and easily produce installation, the advantage of saving material and reducing costs.
For this reason, the exhaust duct that a kind of variable pressure jet type house exhaust passage system of the present invention is used, being made up of exhaust duct and the mouth that enters being positioned at exhaust duct one sidewall upper, larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end.Described exhaust duct comprises single tube exhaust duct and dual exhaust road and multitube exhaust duct.The larynx deformation pressure part of described single tube exhaust duct is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end.Described dual exhaust road is by be arranged side by side and centre dividing plate separates and forms the first air flue independent of each other and the second air flue is formed, enter mouth to be positioned on the first air flue upper end one sidewall then larynx deformation pressure part and to be positioned on the second two side, air flue lower end, or enter mouth and to be positioned on the second air flue upper end one sidewall then larynx deformation pressure part and to be positioned on the first two side, air flue lower end.
A kind ofly use the variable pressure jet type house exhaust passage system of described exhaust duct: larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end, and the jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel.It is L-shaped that jet leads cigarette fire poking barrel, jet lead cigarette fire poking barrel lead that cigarette import internal diameter is greater than that jet leads cigarette fire poking barrel lead cigarette exit inside diameter, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, and the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.
Described house exhaust passage system comprises single tube exhaust passage system and dual exhaust road system and multitube exhaust passage system.
Described single tube exhaust passage system is made up of superimposed vertically disposed several single tube exhaust duct, larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end, the jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, and the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.
Described dual exhaust road system is made up of superimposed vertically disposed several dual exhaust road, the mouth interlayer that enters of the first air flue and the second air flue is arranged on upper end one sidewall of an air flue in two air flues, and larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end.The jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, and the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.
Use a variable pressure jet type house exhaust passage system for described exhaust duct, if: be 1 with the gas path cross sections length in an air flue of the same exhaust duct of layer; The interior electrical path length leading cigarette outlet that jet leads cigarette fire poking barrel upper end is 0.48; In each floor with the proportion of larynx deformation pressure passageway narrow portion length in the same air flue of layer be then:
1 ~ 6 floor: 7 ~ 12 floors: 13 ~ 19 floors: 20 ~ 30 floors are 0.50 ~ 0.54: 0.58 ~ 0.62: 0.66 ~ 0.70: 0.74 ~ 0.78.
In described each floor with the optimal proportion scope of larynx deformation pressure passageway narrow portion length in the same air flue of layer be:
1 ~ 6 floor: 7 ~ 12 floors: 13 ~ 19 floors: 20 ~ 30 floors are 0.52: 0.60: 0.68: 0.76.
Said structure design reaches object of the present invention.
The invention provides rational component for variable-pressure and enter mouth design, component for variable-pressure and jet is had to lead the acting in conjunction of cigarette fire poking barrel, in exhaust duct, the ratio of each parts is reasonable, what make pressure variable exhausting channel respectively enters mouth local static pressure negative value the best, effectively prevent " gas blowby " phenomenon in each layer kitchen, also have and easily produce installation, the advantage of saving material and reducing costs, concrete advantage is:
(1) the present invention design can reach good air draft, smoke discharging effect.Have component for variable-pressure and jet to lead the acting in conjunction of cigarette fire poking barrel, what make pressure variable exhausting channel respectively enters mouth local static pressure negative value the best, and static pressure negative value is 2 times of conventional exhaust road negative value.And jet leads cigarette fire poking barrel when fire, every cigarette back-fire relief, fire spreading can be prevented, interlayer subregion, reach back-fire relief effect, reduce fire damage, for personnel escape has striven for the time.
(2) design of the present invention determine each layer exhaust duct component for variable-pressure, enter mouth, jet leads cigarette fire poking barrel and the fundamental characteristics of larynx deformation pressure passageway and correlation, can reach good air draft, smoke discharging effect.When air quantity one timing in exhaust duct, reduce larynx deformation pressure passageway size, can make to be increased by the wind speed of larynx deformation pressure passageway; But larynx deformation pressure passageway static pressure has diminished, wind resistance in exhaust duct also can be made to increase, and in the reducing pipe of larynx deformation pressure passageway front portion, static pressure also increases simultaneously, so for the exhaust passage system of reality, reduce the size of larynx deformation pressure passageway simply, its effect is contrary.The invention provides, the Changing Pattern of larynx deformation pressure passageway, drawn the design scheme that best flue gas pours in down a chimney.
(3) the present invention in layers lampblack absorber close time, in exhaust duct, air-flow becomes large through larynx deformation pressure passageway wind speed, static pressure lowers accordingly, thus form low static pressure band around the outlet flue of leading cigarette fire poking barrel at jet, simultaneously in exhaust duct, air-flow flows through jet when leading cigarette fire poking barrel surface, inducing action is played by the air in larynx deformation pressure passageway high wind speed correlation conductance cigarette fire poking barrel, lead in cigarette fire poking barrel at jet and form negative hydrostatic pressure, coordinate jet to lead the effect that puts a chimney on the stove and make the fire draw of cigarette fire poking barrel itself, namely reach the optimum efficiency that flue gas pours in down a chimney; When lampblack absorber different layers is started shooting, lead cigarette fire poking barrel by jet and the exhaust air rate of each lampblack absorber become jetting stream in exhaust duct, on different exhaust duct height, form the relay ventilation effect of multiple jets.According to exhaust duct on differing heights layer, width is stitched in the gorge that deflector and jet are led between cigarette fire poking barrel, reaches air draft effect smoothly.
(4) in the present invention, the mouth that enters of lower floor is using the larynx deformation pressure part in last layer exhaust duct as larynx deformation pressure passageway.Therefore in the finite length of exhaust duct, can lead the length of cigarette fire poking barrel by maximum extension jet, put a chimney on the stove and make the fire draw Be very effective, and be more conducive to produce and install.
(5) enter mouth place at exhaust duct and need not add the device such as check (non-return) valve, fire resisting damper; Can ensure to discharge fume, exhaust system is not poured in down a chimney between the family served, fire time do not go here and there fire, outdoor wind does not pour in down a chimney effect; Accomplish bottom and system successively each air flue static-pressure uniform, under different operating mode, enter mouth static pressure and be all less than static pressure in exhaust duct.
Accompanying drawing explanation
Fig. 1 is air discharging structure schematic diagram of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional structure schematic diagram.
Fig. 3 is that jet of the present invention leads cigarette detachable stove chimney schematic diagram.
Fig. 4 is that jet of the present invention leads cigarette detachable stove chimney schematic diagram.
Fig. 5 is single tube exhaust duct using state structural representation of the present invention.
Fig. 6 is that the B-B of Fig. 5 is to cross-sectional structure schematic diagram.
Fig. 7 is dual exhaust road of the present invention using state structural representation.
Specific embodiments
As shown in Figure 1 to Figure 2, the exhaust duct that a kind of variable pressure jet type house exhaust passage system is used, by exhaust duct 2, enters mouth 1 and formed.Larynx deformation pressure part 3 is positioned on the two side of another exhaust duct (namely referring to be positioned at the exhaust duct of the next level) inside lower end entering mouth adjacent upper end with exhaust duct.Two pieces are positioned at arcs on two side, stack inboard lower end and form larynx deformation pressure part, its effect be to make in this exhaust duct by two arcs between air-flow wind speed become large.And the exhaust duct space between adjacent two arcs forms larynx deformation pressure passageway.Highly adaptive between exhaust duct length and floor, forming every floor is an exhaust duct.The mouth that enters of exhaust duct is positioned at this exhaust duct one sidewall upper, enters mouth and to communicate the smoke extractor air outlet of this layer.Larynx deformation pressure part is positioned on the two side of the inside lower end of exhaust duct, and fabrication and installation are convenient.
Described exhaust duct comprises single tube exhaust duct and dual exhaust road and multitube exhaust duct.Multitube exhaust duct is similar to dual exhaust road, therefore is not repeated.
The larynx deformation pressure part of described single tube exhaust duct is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end.Obviously, the mouth that enters of lower floor is using the larynx deformation pressure part in next level exhaust duct as larynx deformation pressure passageway 21.Larynx deformation pressure passageway refers to the exhaust duct space between adjacent two arcs.
As shown in Figure 7, described dual exhaust road 10 by be arranged side by side and centre dividing plate 13 separates and forms the first air flue 11 independent of each other and the second air flue 12 is formed, the first air flue and the second air flue not connected.Enter mouth to be positioned on the first air flue upper end one sidewall then larynx deformation pressure part and to be positioned on the second two side, air flue lower end, or enter mouth and to be positioned on the second air flue upper end one sidewall then larynx deformation pressure part and to be positioned on the first two side, air flue lower end.
In described exhaust duct lower end, two side is and the exhaust duct inwall entering the adjacent both sides of mouth.
As shown in Fig. 3 to Fig. 7, a kind of variable pressure jet type house exhaust passage system using described exhaust duct, larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end.The jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel 4.It is L-shaped that jet leads cigarette fire poking barrel, and cigarette import 42 internal diameter of leading that jet leads cigarette fire poking barrel is greater than the cigarette of leading that jet leads cigarette fire poking barrel and exports 41 internal diameters.The cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate 5, establishes bolt hole 6 in junction plate corner, and junction plate is fixed on on the exhaust duct wall of mouth periphery by bolt passing through bolt hole.The cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.
Described house exhaust passage system comprises single tube exhaust passage system and dual exhaust road system and multitube exhaust passage system.Multitube exhaust passage system is similar to dual exhaust road system, therefore is not repeated.
As shown in Figure 5 to Figure 6, described single tube exhaust passage system is made up of superimposed vertically disposed several single tube exhaust duct.Larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end, the jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, and the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.Namely the cigarette of leading that the jet of first floor 7 leads cigarette fire poking barrel exports the larynx deformation pressure passageway that this exhaust duct lower end inside of being positioned at the second floor 8 formed by larynx deformation pressure part, the like.
As shown in Figure 7, described dual exhaust road system is made up of superimposed vertically disposed several dual exhaust road.The mouth interlayer that enters of the first air flue and the second air flue is arranged on upper end one sidewall of an air flue in two air flues.Larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end.The jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, and the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.
In Fig. 7, a sidewall upper of the first air flue is established into mouth, and the mouth that enters of odd number floor lays respectively at the first floor, third layer building, layer 5 building ... the sidewall upper of the first air flue of odd number floor; Larynx deformation pressure part is then corresponding to be positioned on the two side of the first air flue inside lower end of another exhaust duct entering mouth adjacent upper end with exhaust duct.In like manner, the second floor enter the sidewall upper that mouth is then positioned at the second air flue of this layer of exhaust duct, the mouth that enters of even numbers floor lays respectively at the second floor, the 4th floor 9, layer 6 building ... the sidewall upper of the second air flue of even numbers floor; Larynx deformation pressure part is then corresponding to be positioned on the two side of another exhaust duct second air flue inside lower end entering mouth adjacent upper end with exhaust duct.
A kind of variable pressure jet type house exhaust passage system using described exhaust duct.If: be 1 with the gas path cross sections length in an air flue of the same exhaust duct of layer; The interior electrical path length leading cigarette outlet that jet leads cigarette fire poking barrel upper end is 0.48; In each floor with the proportion of larynx deformation pressure passageway narrow portion length in the same air flue of layer be then:
1 ~ 6 floor: 7 ~ 12 floors: 13 ~ 19 floors: 20 ~ 30 floors are 0.50 ~ 0.54: 0.58 ~ 0.62: 0.66 ~ 0.70: 0.74 ~ 0.78.
In described each floor with the optimal proportion scope of larynx deformation pressure passageway narrow portion length in the same air flue of layer be:
1 ~ 6 floor: 7 ~ 12 floors: 13 ~ 19 floors: 20 ~ 30 floors are 0.52: 0.60: 0.68: 0.76.
As: the cross-section lengths with in an air flue of the same exhaust duct of layer: jet leads the interior electrical path length leading cigarette outlet of cigarette fire poking barrel upper end: with larynx deformation pressure passageway narrow portion length=X: Y: Z in the same air flue of layer
Then 30 floors:
X: Y: Z=1: 0.48: 0.52 of 1st ~ 6 floors; Larynx deformation pressure part can not established at the 1st layer.
X: Y: Z=1: 0.48: 0.60 of 7th ~ 12 floors;
X: Y: Z=1: 0.48: 0.68 of 13rd ~ 19 floors;
X: Y: Z=1: 0.48: 0.76 of 20th ~ 30 floors.
In a word, the invention provides rational component for variable-pressure and enter mouth design, component for variable-pressure and jet is had to lead the acting in conjunction of cigarette fire poking barrel, in exhaust duct, the ratio of each parts is reasonable, what make pressure variable exhausting channel respectively enters mouth local static pressure negative value the best, effectively prevent " gas blowby " phenomenon in each layer kitchen, also have and easily produce installation, the advantage of saving material and reducing costs.
Claims (3)
1. a variable pressure jet type house exhaust passage system, be made up of exhaust duct and the mouth that enters being positioned at exhaust duct one sidewall upper, it is characterized in that: larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end;
Described exhaust duct comprises single tube exhaust duct and dual exhaust road and multitube exhaust duct;
The larynx deformation pressure part of described single tube exhaust duct is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end;
Described dual exhaust road is by be arranged side by side and centre dividing plate separates and forms the first air flue independent of each other and the second air flue is formed, enter mouth to be positioned on the first air flue upper end one sidewall then larynx deformation pressure part and to be positioned on the second two side, air flue lower end, or enter mouth and to be positioned on the second air flue upper end one sidewall then larynx deformation pressure part and to be positioned on the first two side, air flue lower end;
If be 1 with the gas path cross sections length in an air flue of the same exhaust duct of layer; The interior electrical path length leading cigarette outlet that jet leads cigarette fire poking barrel upper end is 0.48; In each floor with the proportion of larynx deformation pressure passageway narrow portion length in the same air flue of layer be then, 1 ~ 6 floor: 7 ~ 12 floors: 13 ~ 19 floors: 20 ~ 30 floors are 0.50 ~ 0.54: 0.58 ~ 0.62: 0.66 ~ 0.70: 0.74 ~ 0.78.
2. one kind uses the variable pressure jet type house exhaust passage system described in claim 1, it is characterized in that: larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end, the jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, it is L-shaped that jet leads cigarette fire poking barrel, jet lead cigarette fire poking barrel lead that cigarette import internal diameter is greater than that jet leads cigarette fire poking barrel lead cigarette exit inside diameter, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct of mouth adjacent upper end with this and formed by larynx deformation pressure part,
Described house exhaust passage system comprises single tube exhaust passage system and dual exhaust road system and multitube exhaust passage system;
Described single tube exhaust passage system is made up of superimposed vertically disposed several single tube exhaust duct, larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end, the jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, and the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part;
Described dual exhaust road system is made up of superimposed vertically disposed several dual exhaust road, the mouth interlayer that enters of the first air flue and the second air flue is arranged on upper end one sidewall of an air flue in two air flues, larynx deformation pressure part is positioned at and enters with exhaust duct on the two side, same air flue lower end of another exhaust duct of mouth adjacent upper end, the jet that enters in mouth to be provided with of exhaust duct leads cigarette fire poking barrel, the cigarette import of leading that jet leads cigarette fire poking barrel lower end is connected with the exhaust duct wall entering mouth periphery by junction plate, the cigarette outlet of leading that jet leads cigarette fire poking barrel upper end is positioned at the larynx deformation pressure passageway entering another exhaust duct lower end inside of mouth adjacent upper end with this and formed by larynx deformation pressure part.
3., by variable pressure jet type house exhaust passage system according to claim 1, it is characterized in that: in described each floor with the optimal proportion scope of larynx deformation pressure passageway narrow portion length in the same air flue of layer be,
1 ~ 6 floor: 7 ~ 12 floors: 13 ~ 19 floors: 20 ~ 30 floors are 0.52: 0.60: 0.68: 0.76.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210374261.0A CN102864913B (en) | 2012-10-08 | 2012-10-08 | Variable pressure jet type house exhaust passage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210374261.0A CN102864913B (en) | 2012-10-08 | 2012-10-08 | Variable pressure jet type house exhaust passage system |
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| CN102864913A CN102864913A (en) | 2013-01-09 |
| CN102864913B true CN102864913B (en) | 2015-06-10 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218218Y (en) * | 1994-10-17 | 1996-01-24 | 林润泉 | Pressure changing gas exhausting structure of high-rising building |
| CN2246691Y (en) * | 1995-07-31 | 1997-02-05 | 林润泉 | Pressure-changing air channel for high building |
| CN2416173Y (en) * | 2000-04-11 | 2001-01-24 | 徐俊宽 | Jet-flow prefabricated exhaust passage for carrying away waste gases from building |
| CN1611728A (en) * | 2004-05-17 | 2005-05-04 | 佟连青 | Residence flue system |
| CN201218583Y (en) * | 2008-05-19 | 2009-04-08 | 龚守义 | Ejection flow guiding type fireproof dwelling house kitchen and toilet exhaust passage system |
| CN201809949U (en) * | 2010-09-08 | 2011-04-27 | 李玉霞 | Residential fireproof type air exhaust passage |
-
2012
- 2012-10-08 CN CN201210374261.0A patent/CN102864913B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218218Y (en) * | 1994-10-17 | 1996-01-24 | 林润泉 | Pressure changing gas exhausting structure of high-rising building |
| CN2246691Y (en) * | 1995-07-31 | 1997-02-05 | 林润泉 | Pressure-changing air channel for high building |
| CN2416173Y (en) * | 2000-04-11 | 2001-01-24 | 徐俊宽 | Jet-flow prefabricated exhaust passage for carrying away waste gases from building |
| CN1611728A (en) * | 2004-05-17 | 2005-05-04 | 佟连青 | Residence flue system |
| CN201218583Y (en) * | 2008-05-19 | 2009-04-08 | 龚守义 | Ejection flow guiding type fireproof dwelling house kitchen and toilet exhaust passage system |
| CN201809949U (en) * | 2010-09-08 | 2011-04-27 | 李玉霞 | Residential fireproof type air exhaust passage |
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