CN101603363A - The interior support and the job practices thereof in a kind of cigarette air channel - Google Patents
The interior support and the job practices thereof in a kind of cigarette air channel Download PDFInfo
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- CN101603363A CN101603363A CNA2009100407892A CN200910040789A CN101603363A CN 101603363 A CN101603363 A CN 101603363A CN A2009100407892 A CNA2009100407892 A CN A2009100407892A CN 200910040789 A CN200910040789 A CN 200910040789A CN 101603363 A CN101603363 A CN 101603363A
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Abstract
The invention discloses the interior support in a kind of cigarette air channel, be supported for the body of rod that its two ends are connected with the inwall in cigarette air channel in described, the shape of cross section of this body of rod is aerofoil profile or rhombus, the major axis end face that supports in camber end face that supports in the described aerofoil profile or the rhombus is met the cigarette wind flow direction in the cigarette air channel, the invention also discloses the above-mentioned interior job practices that supports.The present invention uses the interior support of aerofoil profile or lozenge shape cross-section, can significantly reduce the resistance of cigarette wind flow, owing to can not produce eddy current after supporting in the distinguished and admirable mistake of cigarette, has therefore reduced the vibrations in cigarette air channel, and noise also can decrease; Support can be flow through more cigarette wind in of the present invention, has reduced the consumption of smoke evacuation energy; In addition, because the center line of aerofoil profile or lozenge shape cross-section is longer, be supported on the intensity on this length direction in therefore having strengthened.
Description
Technical field
The present invention relates to a kind of building unit, particularly relate to the interior support in a kind of cigarette air channel, also relate to the job practices that supports in the above-mentioned cigarette air channel.
Background technology
The cigarette air channel is as a kind of building unit, after the cigarette duct dimension is greater than certain value, on the flue outer wall in cigarette air channel reinforcing rib need be set, in the practice of construction process, use for construction safety and minimizing reinforcing rib, perhaps when overfrequency control limit span with need reduce the reinforcing rib specification time, supporting in setting up in the cigarette air channel is measures necessary, in the prior art, interior support is generally shaft-like, when supporting in being provided with at first is on the inwall of cigarette air channel several stiffeners to be set, on the stiffener that each group is oppositely arranged, support in one of the horizontally set, support in this moment and aim at the setting of per pass horizontal reinforcement ribs, support pipe or the shaped steel of adopting in existing more, should the interior shortcoming that supports be: after the size in cigarette air channel increases, the interior quantity that supports also correspondingly increases, support the resistance that can increase in the cigarette air channel in a plurality of, and because the interior support of existing pipe or shaped steel makes flue gas stream be easy to produce eddy current, increase the vibration in cigarette air channel, expend the smoke evacuation energy, thereby can't realize the energy-saving effect of discharging fume.
Summary of the invention
First purpose of the present invention provides a kind of interior support that can significantly reduce resistance, minimizing smoke evacuation energy consumption and can improve the cigarette air channel of bearing strength.
First purpose of the present invention is to realize by following technical scheme: the interior support in a kind of cigarette air channel, be supported for the body of rod that its two ends are connected with the inwall in cigarette air channel in described, the shape of cross section that it is characterized in that this body of rod is aerofoil profile or rhombus, and the major axis end face that supports in camber end face that supports in the described aerofoil profile or the rhombus is met the cigarette wind flow direction in the cigarette air channel.
The present invention uses the interior support of aerofoil profile or lozenge shape cross-section, can significantly reduce the resistance of cigarette wind flow, owing to can not produce eddy current after supporting in the distinguished and admirable mistake of cigarette, has therefore reduced the vibrations in cigarette air channel, and noise also can decrease; Compare as interior support with pipe or shaped steel with existing, have under the identical condition of the distinguished and admirable speed of identical sectional area and cigarette, the interior support of aerofoil profile or lozenge shape cross-section can be flow through more cigarette wind, thereby has reduced the consumption of smoke evacuation energy; In addition,, be supported on the intensity on this length direction in therefore having strengthened, prolonged the application life of interior support because the center line of aerofoil profile or lozenge shape cross-section is longer; Wherein, cross section is that the interior support of rhombus is easy to make, and the labour intensity when helping reducing the constructor and making the cigarette air channel.
Support the straight section that is positioned at the cigarette air channel in of the present invention, the described interior shape of cross section that supports is an axially symmetric structure, and the center line of this cross section is a straight line, and it is parallel to the side wall surface in cigarette air channel.This is the preferred implementation of the present invention in straight cigarette air channel.
Be provided with several block stiffeners on the inside wall in cigarette of the present invention air channel in pairs, the two ends of supporting in each are separately fixed on a pair of stiffener.The stiffener that is provided with is supported in the cigarette air channel in helping firmly.
The present invention laterally is provided with the reinforcing rib that cross section is " Qian " type along cigarette air channel lateral wall, described reinforcing rib distributes circlewise along the lateral wall in cigarette air channel, the opening of reinforcing rib is towards identical with flowing to of cigarette wind or opposite, the fixed end that position and interior support are set of reinforcing rib that the position is set is corresponding.
In order to save material or to alleviate other functional requisites such as weight of interior support itself, be supported for several in of the present invention, along the length direction setting in cigarette air channel, interior support also forms latticed or arranged side by side row and is set to lattice-shaped on the same circumference of cigarette air channel inside wall.Be supported in the present invention in the cigarette air channel quantity is set and set-up mode is determined by the structural strength in cigarette air channel usually.
As one embodiment of the present invention, the described interior bending segment that is positioned at the cigarette air channel that supports, the center line of the cross section that supports in this is a camber line.
Be supported for solidly in of the present invention, the outside of supporting in perhaps is a metal shell, and enclosure interior is filled with the filler different with case material.
Second purpose of the present invention provides the job practices that supports in the above-mentioned cigarette air channel.
Second purpose of the present invention is to realize by following technical scheme: the job practices that supports in a kind of cigarette air channel, it is characterized in that the interior support that will have airfoil cross-section or lozenge shape cross-section is horizontally installed in the cigarette air channel, the two ends of supporting in this moment are fixed on the inside wall in cigarette air channel, and the major axis end face that supports in curved end that supports in the described aerofoil profile or the rhombus is met to cigarette wind flow direction.
The present invention is that the major axis end face that supports in the curved end that will support in the aerofoil profile or the rhombus is met to cigarette wind flow direction, therefore after supporting in the distinguished and admirable mistake of cigarette, can not produce eddy current at interior support rear, the vibrations in cigarette air channel have been reduced, reduced noise, the cross section of this kind shape has also significantly reduced the consumption of smoke evacuation energy simultaneously.
Before the present invention supports in installing, the reinforcing rib that is " Qian " type along the lateral wall horizontally set cross section in cigarette air channel, reinforcing rib is distributed circlewise along the lateral wall in cigarette air channel, and reinforcing rib is pressed its opening towards installing to identical or opposite direction with cigarette is distinguished and admirable.
After described reinforcing rib installs, on the inside wall in cigarette air channel, stiffener is set, is provided with on to stiffener in one at each again and supports, described in the support fixation end be provided with position and reinforcing rib that the position is set is corresponding.
As one embodiment of the present invention, the fixed form of described interior support and stiffener is for being welded to connect.
Compared with prior art, the present invention has following significant effect:
(1) the present invention adopts the interior support of aerofoil profile or lozenge shape cross-section, can significantly reduce the resistance of cigarette wind flow, reduces the smoke evacuation energy consumption, realizes energy-conservation purpose;
(2) the present invention compares with the existing interior structure that supports, the center line of aerofoil profile or lozenge shape cross-section is longer relatively, therefore be supported on the bearing strength on this length direction in having increased, strengthened the bearing capacity of interior support, the application life of supporting in can prolonging, under the same conditions, the quantity that supports in also can reducing reduces implementation cost;
(3) compare with the existing interior structure that supports, have the inner supporting structure of the present invention of same cross-sectional area, the resistance of cigarette wind flow is the part of the suffered resistance of the existing pipe cross section of the distinguished and admirable mistake of cigarette, and resistance significantly reduces;
(4) cigarette is distinguished and admirable supports in the present invention, is difficult for forming eddy current at interior support rear, has therefore reduced the vibrations in cigarette air channel, makes the noise that produces owing to vibrations reduce significantly;
(5) cross section is that the interior support of rhombus is easy to make, and the labour intensity when helping reducing the constructor and making the cigarette air channel makes that construction is simple relatively;
(6) shape of cross section that supports in the present invention calculates according to existing structure principle and formula, realizes easily;
(7) shape of cross section of the interior support adopted at the straight section in cigarette air channel and bending segment of the present invention is different, therefore can do different corresponding conversion to the cross section that supports in the present invention according to the different structure in cigarette air channel, realizes flexible Application;
(8) the present invention is applicable to the cigarette air channel in the various building structure, and the scope of application is wider, and practicality is stronger.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 supports the schematic top plan view that is arranged in cigarette air channel straight section in the embodiment of the invention 1;
Fig. 2 is along B-B line cross-sectional schematic among Fig. 1;
Fig. 3 is along C-C line cross-sectional schematic (stiffener does not draw) among Fig. 1;
Fig. 4 is that the support cross section is the cross-sectional schematic (stiffener does not draw) of rhombus in the embodiment of the invention 2;
Fig. 5 supports the cross-sectional schematic that is arranged in cigarette air channel bending segment in the embodiment of the invention 3.
The specific embodiment
As Fig. 1, shown in 2 and 3, the interior support in a kind of cigarette of the present invention air channel, interior support 1 is a body of rod, its two ends are by being fixed on a pair of block stiffener 3 and be connected with the inwall in cigarette air channel 2, it shown in the figure straight section in cigarette air channel 2, lateral wall along cigarette air channel 2 laterally is provided with the reinforcing rib 4 that cross section is " Qian " type, reinforcing rib 4 distributes circlewise along the lateral wall in cigarette air channel 2, its opening is towards identical with flowing to of cigarette wind A, the fixed form of interior support 1 and stiffener 3 is for being welded to connect, support 1 in making and be stable in the cigarette air channel 2, in the present embodiment, with between the reinforcing rib 4 that becomes a ring-type for being articulated and connected.
The shape of cross section of support 1 is an aerofoil profile in above-mentioned, its camber end face is met the flow direction to cigarette wind A, in support 1 fixed end be provided with position and reinforcing rib 4 that the position is set is corresponding, in the present embodiment, the shape of cross section of interior support 1 is an axially symmetric structure, the center line of this cross section is a straight line, this center line is parallel to the side wall surface in cigarette air channel 2, flow trace almost parallel when being center line and cigarette wind A craspedodrome, can not produce eddy current (referring to Fig. 3) after supporting in cigarette wind A flows through, therefore reduced the vibrations in cigarette air channel, noise also decreases; In addition, have under the identical condition of the distinguished and admirable speed of identical sectional area and cigarette, the interior support of airfoil cross-section can significantly reduce the resistance that cigarette wind A flows, and compares as interior support with pipe or shaped steel with existing, can flow through more cigarette wind A, thereby reduce the consumption of smoke evacuation energy; The center line of airfoil cross-section is longer, is supported on the intensity on this length direction in having strengthened, and has prolonged the application life of interior support, and under the same conditions, the quantity that supports in also can reducing is relatively saved implementation cost.
The concrete shape of airfoil cross-section and the pipe thickness of interior support draw according to following computational process: the concrete shape of airfoil cross-section is calculated to determine by flow process according to existing fluid mechanics principle according to data such as cigarette wind character, flow field, cigarette duct dimension, the distinguished and admirable speed of cigarette; Simultaneously pipe thickness calculates by general structural mechanics, according to the data of the airfoil cross-section of above acquisition, selects the shape of cross section of low-resistance, adopts with rigidity, intensity and the stability of existing design standard regulation and determines.
In the present embodiment, interior 1 length direction along cigarette air channel 2 that supports is provided with several, arrange to be equipped with in 2 side by side on the same circumference of cigarette air channel 2 inside walls and support 1, the composite bending modulus W that supports in the aerofoil profile and the quantity of setting etc., be to calculate gained too, adopt with rigidity, intensity and the stability of existing design standard defined and determine according to general structural mechanics.
The job practices that supports in the above-mentioned cigarette air channel, the horizontally set cross section is the reinforcing rib 4 of " Qian " type on the lateral wall in cigarette air channel 2, reinforcing rib 4 is installed towards flowing to identical direction with cigarette wind A by its opening, stiffener 3 is set on the inside wall in cigarette air channel 2 in pairs, stiffener 3 adopts general steel plate, again each to stiffener 3 on the interior support 1 of one of transverse weld with airfoil cross-section, in support 1 fixed end be provided with position and reinforcing rib 4 that the position is set is corresponding, the curved end of support 1 is met the flow direction to cigarette wind A in the aerofoil profile.
As shown in Figure 4, the difference of present embodiment and embodiment 1 is: the shape of cross section of interior support 1 is a rhombus, be an axially symmetric structure, the major axis end face of support 1 is met the flow direction to cigarette wind A in this rhombus, the flow trace almost parallel when its center line and cigarette wind A keep straight on.When cigarette wind A flows through the interior support of lozenge shape cross-section, can not produce eddy current too at its rear, the noise that produces when therefore greatly reducing smoke evacuation, and have other technique effect identical simultaneously with the interior support of airfoil cross-section.
When the interior support of present embodiment is constructed, its job practices is identical with the job practices of embodiment 1, just compare with the interior support manufacturing of airfoil cross-section, the interior support of the lozenge shape cross-section of present embodiment is easy to make, operator's labour intensity when helping reducing the making of cigarette air channel.
As shown in Figure 5, the difference of present embodiment and embodiment 1 is: interior support 1 is positioned at the bending segment in cigarette air channel 2, and the center line of the airfoil cross-section of interior support 1 is a camber line, and center line is roughly the same with the cigarette wind A flow trace that flows through bending segment.According to the concrete condition that cigarette wind A in the bending segment flows, the interior support that adopt at this position, its center line is corresponding camber line also, helps further reducing the resistance of cigarette wind flow, reduces the smoke evacuation power consumption.
In addition, the interior material that supports can adopt metal material, it also can be other existing interior material commonly used that supports, and according to the function needs of interior support, interior support can be made by one or more materials, the interior inside of supporting can be for solid, and perhaps interior supports outer is a metal shell, and the material different with interior support housing filled by portion within it; About the interior concrete structure that is provided with in the cigarette air channel that is supported on, in order to save material or to alleviate other functional requisites such as weight of interior support itself, as preferred implementation, the shape of interior support can adopt by supporting the net structure constitute or lattice-shaped structure etc. in several.
Embodiments of the present invention are not limited thereto; according to foregoing of the present invention; utilize the ordinary skill knowledge and the customary means of this area; do not breaking away under the above-mentioned fundamental technics thought of the present invention prerequisite; the present invention is according to different cigarette air channel structures; the concrete shape of support cross section, quantity, mounting means etc. can be made modification, replacement or the change of various ways in employed, and these modifications, replacement or change all drop within the rights protection scope of the present invention.
Claims (10)
1, the interior support in a kind of cigarette air channel, be supported for the body of rod that its two ends are connected with the inwall in cigarette air channel in described, it is characterized in that: the shape of cross section of this body of rod is aerofoil profile or rhombus, and the major axis end face that supports in camber end face that supports in the described aerofoil profile or the rhombus is met the cigarette wind flow direction in the cigarette air channel.
2, the interior support in cigarette according to claim 1 air channel is characterized in that: support the straight section that is positioned at the cigarette air channel in described, the shape of cross section that supports in described is an axially symmetric structure, and the center line of this cross section is parallel to the side wall surface in cigarette air channel.
3, the interior support in cigarette according to claim 1 and 2 air channel is characterized in that: be provided with several block stiffeners on the inside wall in described cigarette air channel in pairs, two ends of supporting in each are separately fixed on a pair of stiffener.
4, the interior support in cigarette according to claim 3 air channel, it is characterized in that: laterally be provided with the reinforcing rib that cross section is " Qian " type along cigarette air channel lateral wall, described reinforcing rib distributes circlewise along the lateral wall in cigarette air channel, the opening of reinforcing rib is towards identical with flowing to of cigarette wind or opposite, the fixed end that position and interior support are set of reinforcing rib that the position is set is corresponding.
5, the interior support in cigarette according to claim 4 air channel is characterized in that: be supported for several in described, along the length direction setting in cigarette air channel, interior support also forms latticed or arranged side by side row and is set to lattice-shaped on the same circumference of cigarette air channel inside wall.
6, the interior support in cigarette according to claim 1 air channel is characterized in that: support the bending segment that is positioned at the cigarette air channel in described, the center line of the cross section that supports in this is a camber line.
7, the interior support in cigarette according to claim 1 air channel is characterized in that: be supported for solidly in described, the outside of supporting in perhaps is a metal shell, and enclosure interior is filled with the filler different with case material.
8, the job practices that supports in the described cigarette of a kind of claim 1 air channel, it is characterized in that: the interior support that will have airfoil cross-section or lozenge shape cross-section is horizontally installed in the cigarette air channel, the two ends of supporting in this moment are fixed on the inside wall in cigarette air channel, and the major axis end face that supports in curved end that supports in the described aerofoil profile or the rhombus is met the cigarette wind flow direction in the cigarette air channel.
9, the job practices that supports in the cigarette according to claim 8 air channel, it is characterized in that: before in installing, supporting, the reinforcing rib that is " Qian " type along the lateral wall horizontally set cross section in cigarette air channel, reinforcing rib is distributed circlewise along the lateral wall in cigarette air channel, and reinforcing rib is pressed its opening towards installing to identical or opposite direction with cigarette is distinguished and admirable.
10, the job practices that supports in the cigarette according to claim 9 air channel, it is characterized in that: after described reinforcing rib installs, on the inside wall in cigarette air channel, stiffener is set, be provided with on to stiffener in one at each again and support, described in the support fixation end be provided with position and reinforcing rib that the position is set is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100407892A CN101603363A (en) | 2009-07-02 | 2009-07-02 | The interior support and the job practices thereof in a kind of cigarette air channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100407892A CN101603363A (en) | 2009-07-02 | 2009-07-02 | The interior support and the job practices thereof in a kind of cigarette air channel |
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| CN101603363A true CN101603363A (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100407892A Pending CN101603363A (en) | 2009-07-02 | 2009-07-02 | The interior support and the job practices thereof in a kind of cigarette air channel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942898A (en) * | 2010-09-08 | 2011-01-12 | 华能国际电力股份有限公司 | Gusset plate for supporting connection in flue gas ducts and construction method thereof |
| CN101832012B (en) * | 2010-01-18 | 2012-12-12 | 顾颐 | High-strength splicing fireproof exhaust gas flue |
| CN106824531A (en) * | 2017-01-20 | 2017-06-13 | 美的集团股份有限公司 | Fume purifying module and fume extractor |
| KR102596312B1 (en) * | 2022-11-08 | 2023-10-31 | (주)큐엔큐 | Air resistance canceling device for electric sign and air resistance canceling electric sign using the same |
-
2009
- 2009-07-02 CN CNA2009100407892A patent/CN101603363A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832012B (en) * | 2010-01-18 | 2012-12-12 | 顾颐 | High-strength splicing fireproof exhaust gas flue |
| CN101942898A (en) * | 2010-09-08 | 2011-01-12 | 华能国际电力股份有限公司 | Gusset plate for supporting connection in flue gas ducts and construction method thereof |
| CN101942898B (en) * | 2010-09-08 | 2013-05-01 | 华能国际电力股份有限公司 | Gusset plate for supporting connection in flue gas ducts and construction method thereof |
| CN106824531A (en) * | 2017-01-20 | 2017-06-13 | 美的集团股份有限公司 | Fume purifying module and fume extractor |
| KR102596312B1 (en) * | 2022-11-08 | 2023-10-31 | (주)큐엔큐 | Air resistance canceling device for electric sign and air resistance canceling electric sign using the same |
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Open date: 20091216 |