CN110220196A - Ejector pipe and kitchen range injector containing it - Google Patents
Ejector pipe and kitchen range injector containing it Download PDFInfo
- Publication number
- CN110220196A CN110220196A CN201910407009.7A CN201910407009A CN110220196A CN 110220196 A CN110220196 A CN 110220196A CN 201910407009 A CN201910407009 A CN 201910407009A CN 110220196 A CN110220196 A CN 110220196A
- Authority
- CN
- China
- Prior art keywords
- ejector pipe
- section
- outlet
- shape
- contraction section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
Abstract
The invention discloses a kind of ejector pipe and containing its kitchen range injector, wherein ejector pipe has contraction section, and the intracavity section shape of the contraction section is polygon.Compared to traditional circle, ellipse or other ejector pipes such as arc-shaped, polygon is in the case where occupying same cross-sectional area, can have more inner wall perimeters, therefore, in the identical situation of pipeline section, the structure can effectively promote the inner wall area of ejector pipe, to suck more air in the identical situation of pressure of the inner wall surface, improve ejector pipe to the injection effect of air.
Description
Technical field
The present invention relates to burner arts, in particular to a kind of ejector pipe and the kitchen range injector containing it.
Background technique
Ejector pipe is one of important composition component of kitchen range, by receiving the combustion gas from nozzle, to utilize combustion gas stream
Air in dynamic injection ambient enviroment.The pipeline section shape of ejector pipe is generally circular or oval, flows along gas
Direction can be divided into contraction section, horizontal segment and expansion segment according to the variation of cross section.
Wherein, existing ejector pipe is bad to the ejector capacity of air, directly influences the combustion efficiency of kitchen range.Therefore,
How to improve ejector pipe becomes the research emphasis of R & D design personnel to the ejector capacity of air.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome ejector pipe in the prior art to the ejector capacity of air not
Good defect provides a kind of ejector pipe and the kitchen range injector containing it.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of ejector pipe, with contraction section, the intracavity section shape of the contraction section is polygon.
Compared to traditional circle, ellipse or other ejector pipes such as arc-shaped, polygon is occupying same cross-sectional area
In the case where, can have more inner wall perimeters, therefore, in the identical situation of pipeline section, which can effectively be promoted
The inner wall area of ejector pipe improves ejector pipe pair to suck more air in the identical situation of pressure of the inner wall surface
The injection effect of air.
Meanwhile the structure will not change the occupied real space of ejector pipe, therefore will not influence each component in kitchen range
Between layout structure.
Preferably, the ejector pipe also has horizontal segment, intracavity section shape and the contraction section of the horizontal segment
Intracavity section shape is identical, allows the flow to swimmingly flow.
Preferably, the ejector pipe has the blast tube for being connected to fire cover for kitchen range, the blast tube draws described
The aperture on pipe is penetrated to be located in the side wall surface of the horizontal segment.
It is set in the side wall surface of the horizontal segment preferably, the aperture is surround along the intracavity section of the horizontal segment,
The distance of center of the aperture of multiple apertures with the aperture away from the horizontal segment is approached and is become larger.
By this kind of structure setting, in the case where the intracavity section shape of horizontal segment is non-circular situation, equilibrium level section is each
The rate of outflow at place preferably guarantees that the mixed gas of combustion gas and air uniformly flows out.
Preferably, the intracavity section shape of the contraction section is multi-corner star-shape, further to promote inner wall perimeter, raising is drawn
Penetrate effect.
A kind of kitchen range injector comprising:
Ejector pipe as described above；
Nozzle, the nozzle and the ejector pipe are set gradually along airflow direction, and the nozzle includes multiple first outlets,
The first outlet is arranged towards the Way in of the contraction section, and multiple first outlets are along the inner cavity of the contraction section
Edge is successively circumferentially arranged.
The kitchen range injector is acted directly on the inner wall of contraction section by the combustion gas sprayed in the first outlet by nozzle,
The air-flow velocity for improving the inner wall surface of contraction section makes inner wall surface is corresponding to generate bigger negative pressure, to improve ejector pipe
Air imbibed quantity.To be arranged in the outlet for making nozzle towards the middle position of contraction section in compared to the prior art, to pass through position
The injection mode that fuel gas flow in middle position drives the air-flow for being located at inner wall surface to flow, effectively improves injection effect.
Preferably, the intracavity section shape of the contraction section is multi-corner star-shape, the quantity of the first outlet and the receipts
The wedge angle quantity of the intracavity section shape of contracting section is identical, and multiple first outlets correspond respectively to the inner wall of the contraction section
Wedge angle setting.
The structure setting can make the combustion gas sprayed from first outlet directly act on the inner wall surface positioned at wedge angle two sides, and
And the air velocity between multiple wedge angles of contraction section is also able to maintain relative equilibrium.
Preferably, the outlet shapes of the first outlet are identical as the corresponding inner wall angular shape, make from first
The angular shape of the air-flow and contraction section that spray is exported to matching, further increases the air-flow velocity of inner wall surface.
Preferably, the nozzle further includes air inlet section and surge chamber, the air inlet section, surge chamber and first outlet are along air-flow
Direction sets gradually and is interconnected, the intracavity section shape and the intracavity section shape phase of the contraction section of the surge chamber
Together, the location layout of the shape and first outlet that make surge chamber matches.
Preferably, the nozzle further includes second outlet, the second outlet is arranged towards the center of the contraction section.
Second outlet is used to supply to the middle position of ejector pipe, to improve the air-flow entirety flow velocity in ejector pipe.
The positive effect of the present invention is that:
In ejector pipe and kitchen range injector containing it, the intracavity section shape of the contraction section of ejector pipe is compared to traditional circle
Shape, ellipse or other ejector pipes such as arc-shaped, polygon can have more in the case where occupying same cross-sectional area
Inner wall perimeter.Therefore, in the identical situation of pipeline section, which can effectively promote the inner wall area of ejector pipe, thus
More air are sucked in the identical situation of the pressure of inner wall surface, improve ejector pipe to the injection effect of air, meanwhile, Bu Huigai
Become the occupied space of ejector pipe.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the kitchen range injector of the embodiment of the present invention 1.
Fig. 2 is the relative position signal of the nozzle of the kitchen range injector of the embodiment of the present invention 1 and the contraction section of ejector pipe
Figure.
Fig. 3 is the schematic diagram of internal structure of the kitchen range injector of the embodiment of the present invention 1.
Fig. 4 is the schematic perspective view of the kitchen range injector of the embodiment of the present invention 2.
Description of symbols:
Airflow direction A
Nozzle 1, first outlet 11, second outlet 12, air inlet section 13, surge chamber 14
Ejector pipe 2
Contraction section 21, luminal border 21a, wedge angle 21b
Horizontal segment 22, wedge angle 22b
Expansion segment 23
Flange 31
First aperture 41
Second aperture 42
Third aperture 43
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Embodiment 1
As depicted in figs. 1 and 2, the present invention provides a kind of kitchen range injector comprising the spray set gradually along airflow direction A
Mouth 1 and ejector pipe 2.Wherein, ejector pipe 2 can be divided into contraction section 21, horizontal segment according to the variation of cross section along gas flow direction
22 and 23 three parts of expansion segment, and nozzle 1 then includes multiple first outlets 11, these first outlets 11 are towards contraction section 21
Way in setting, and these first outlets 11 are successively circumferentially arranged along the luminal border 21a of contraction section 21, to be surrounded on
(referring specifically to Fig. 2) is arranged in the inner cavity of contraction section 21.It is arranged with this configuration, the combustion gas that nozzle 1 is sprayed from first outlet 11
It can act directly on the inner wall of contraction section 21, improve the air-flow velocity of the inner wall surface of contraction section 21, make inner wall surface
It is corresponding to generate bigger negative pressure, to improve the air imbibed quantity of ejector pipe 2, imitated so as to improve the whole injection of kitchen range injector
Fruit.
In compared to the prior art the outlet of nozzle 1 is set towards the middle position of contraction section 21, in by being located at
Between position the fuel gas flow injection mode that drives the air-flow for being located at inner wall surface to flow, kitchen range injector of the invention is by changing
The outlet port for becoming nozzle 1, enables combustion gas to be sprayed directly on to the inner wall surface of contraction section 21, effectively increases injection effect.
In addition, the intracavity section shape of the contraction section 21 of ejector pipe 2 is polygon, compared to traditional circle, ellipse
Or other arc-shaped equal ejector pipes, polygon can have more inner wall perimeters in the case where occupying same cross-sectional area,
Therefore, in the identical situation of pipeline section, which can effectively promote the inner wall area of ejector pipe 2, to improve the ejector pipe 2
To the injection effect of air.Meanwhile the structure will not change the occupied real space of ejector pipe 2, therefore will not influence stove
Layout structure in tool between each component.
In the present embodiment, as shown in figure 3, the intracavity section shape of contraction section 21 is multi-corner star-shape, further to be promoted
Inner wall perimeter improves injection effect.
In the present embodiment, the intracavity section shape of the contraction section 21 is specially quadrangle star, and the first outlet of nozzle 1
11 quantity are identical with the wedge angle 21b quantity of contraction section 21.As shown in Fig. 2, this four first outlets 11 correspond respectively to receive
The wedge angle 21b of contracting section 21 is arranged, and so that the combustion gas sprayed is directly acted on the inner wall surface positioned at the two sides wedge angle 21b, and receive
Air velocity between multiple wedge angle 21b of contracting section 21 is also able to maintain relative equilibrium.
In addition, on this basis, the concrete shape of the gas outlet of first outlet 11 can also be with corresponding contraction section 21
Wedge angle 21b shape it is identical.As shown in Fig. 2, the outlet shapes of first outlet 11 are "eight" shape, make to spray from first outlet 11
Air-flow and contraction section 21 wedge angle 21b shape to matching, to can further improve the air-flow velocity of inner wall surface.Certainly,
The outlet shapes of the first outlet 11 of the present embodiment are merely to illustrate signal, and in other embodiments, similar outlet shapes are set
Meter also can be realized above-mentioned technical effect, such as outlet shapes are " V " font etc..
In addition, the intracavity section of the horizontal segment 22 of the ejector pipe 2 and the intracavity section shape of expansion segment 23 and contraction section 21
Shape is identical, allows the flow to swimmingly flow.
As shown in Figures 2 and 3, which further includes second outlet 12, and the interposition of nozzle 1 is arranged in second outlet 12
It sets, is surround by multiple first outlets 11, and be arranged towards the center direction of contraction section 21, the second outlet 12 of the nozzle 1
For being supplied to the middle position of ejector pipe 2, to improve the air-flow entirety flow velocity in ejector pipe 2.In the present embodiment, second goes out
The outlet shapes of mouth 12 are similar to the outlet shapes of first outlet 11, for around center circumference array four times "eight" shape
(referring specifically to Fig. 2).In addition, the nozzle 1 further includes air inlet section 13 and surge chamber 14, air inlet section 13, surge chamber 14 go out with first
11 (or second outlets 12) of mouth set gradually and are interconnected along airflow direction A, and the entrance cross-sectional area of air inlet section 13 is answered small
In the cross-sectional area of surge chamber 14.In the present embodiment, the intracavity section of the intracavity section shape of surge chamber 14 and contraction section 21
Shape is identical, so that the shape of surge chamber 14 can match with the location layout of first outlet 11.
It is also fixed to each other by connecting component between nozzle 1 and ejector pipe 2, specifically, which includes difference
It is fixed on the flange 31 of nozzle 1 Yu 2 outer surface of ejector pipe, to realize the fixation of relative position by bolt.
Embodiment 2
The present embodiment provides a kind of kitchen range injector, structure provides roughly the same with embodiment 1.Difference exists
In in the present embodiment, ejector pipe 2 only includes contraction section 21 and horizontal segment 22, and does not include expansion segment 23.As shown in figure 4,
What the horizontal segment 22 was off along the end of airflow direction A, and several apertures are offered in the side wall surface of horizontal segment 22, with
The air mixture in ejector pipe 2 is set to be connected to external fire cover for kitchen range.Wherein, these apertures along horizontal segment 22 intracavity section
It is circumferentially positioned in the side wall surface of horizontal segment 22.
It is also the structure of polygon by horizontal segment 22 in this present embodiment, therefore the aperture of these apertures and aperture are away from water
There are corresponding relationships for the linear distance of the center of flat section 22: when center relative close of the aperture away from horizontal segment 22
When, the aperture of aperture is big；And when center of the aperture away from horizontal segment 22 relatively far away from when, the aperture of aperture is small.This aperture
The setting of size can be such that the mixed gas in horizontal segment 22 equably flows out from the side wall surface of horizontal segment 22, without because of horizontal segment
22 intracavity section shape be it is non-circular, cause the combustion gas being surrounded on everywhere in horizontal segment 22 outflow unbalanced to happen.
Specifically, in the present embodiment, the intracavity section shape of horizontal segment 22 is quadrangle star, therefore, blast tube
Aperture on horizontal segment 22 is also correspondingly divided into opening for the first aperture 41, the second aperture 42 and 43 three types of third aperture
Hole.Wherein, the first aperture 41 is arranged at the wedge angle 22b of horizontal segment 22, since its center apart from horizontal segment 22 is farthest,
Therefore aperture is relatively minimal；Second aperture 42 is arranged in the side wall surface of horizontal segment 22, and aperture is between the first aperture 41 and
Between three apertures 43；And third aperture 43 is then arranged on the obtuse angle position of horizontal segment 22, therefore its aperture is maximum.
It, can equilibrium level in the case where the intracavity section shape of horizontal segment 22 is non-circular situation by this structure setting
The gas rate of outflow of section 22 everywhere preferably guarantees that the mixed gas of combustion gas and air uniformly flows out.
In addition, in the present embodiment, the side wall surface of horizontal segment 22 is equipped with two groups of apertures, this two groups of apertures are along airflow direction
A successively arranges.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of ejector pipe, which is characterized in that it is polygon with contraction section, the intracavity section shape of the contraction section.
2. ejector pipe as described in claim 1, which is characterized in that the ejector pipe also has horizontal segment, the horizontal segment
Intracavity section shape is identical as the intracavity section shape of the contraction section.
3. ejector pipe as claimed in claim 2, which is characterized in that the ejector pipe has the combustion gas for being connected to fire cover for kitchen range
Channel, the blast tube is in the side wall surface that the aperture on the ejector pipe is located at the horizontal segment.
4. ejector pipe as claimed in claim 3, which is characterized in that the aperture surround along the intracavity section of the horizontal segment and sets
It is placed in the side wall surface of the horizontal segment, center of the aperture of multiple apertures with the aperture away from the horizontal segment
Distance is approached and is become larger.
5. ejector pipe according to any one of claims 1-4, which is characterized in that the intracavity section shape of the contraction section is more
Angle star.
6. a kind of kitchen range injector, characterized in that it comprises:
Ejector pipe as described in claim 1；
Nozzle, the nozzle and the ejector pipe are set gradually along airflow direction, and the nozzle includes multiple first outlets, described
First outlet is arranged towards the Way in of the contraction section, and multiple first outlets are along the luminal border of the contraction section
Successively it is circumferentially arranged.
7. kitchen range injector as claimed in claim 6, which is characterized in that the intracavity section shape of the contraction section is polygonal star
Shape, the quantity of the first outlet is identical as the wedge angle quantity of intracavity section shape of the contraction section, and multiple described first
Outlet corresponds respectively to the inner wall wedge angle setting of the contraction section.
8. kitchen range injector as claimed in claim 7, which is characterized in that outlet shapes of the first outlet and corresponding
The inner wall angular shape is identical.
9. kitchen range injector as claimed in claim 6, which is characterized in that the nozzle further includes air inlet section and surge chamber, institute
It states air inlet section, surge chamber and first outlet to set gradually and be interconnected along airflow direction, the intracavity section shape of the surge chamber
Shape is identical as the intracavity section shape of the contraction section.
10. kitchen range injector as claimed in claim 6, which is characterized in that the nozzle further includes second outlet, and described second
It exports and is arranged towards the center of the contraction section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407009.7A CN110220196B (en) | 2019-05-16 | 2019-05-16 | Ejector pipe and cooker ejector comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407009.7A CN110220196B (en) | 2019-05-16 | 2019-05-16 | Ejector pipe and cooker ejector comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220196A true CN110220196A (en) | 2019-09-10 |
| CN110220196B CN110220196B (en) | 2021-07-02 |
Family
ID=67821158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910407009.7A Active CN110220196B (en) | 2019-05-16 | 2019-05-16 | Ejector pipe and cooker ejector comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220196B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020051067A (en) * | 2000-12-22 | 2002-06-28 | 신현준 | Reduction method for NOx emission using lobed burner |
| CN2847058Y (en) * | 2005-06-28 | 2006-12-13 | 西安热工研究院有限公司 | Multiedge low speed burner |
| CN203874686U (en) * | 2014-05-22 | 2014-10-15 | 西安交通大学 | Square venturi mixer with adjustable flow area |
| CN207146395U (en) * | 2017-09-05 | 2018-03-27 | 谭耀荣 | Burner and there is its gas furnace |
| CN108518366A (en) * | 2018-06-06 | 2018-09-11 | 中国人民解放军国防科技大学 | Two-dimensional-configuration multi-support-plate ejector and application |
-
2019
- 2019-05-16 CN CN201910407009.7A patent/CN110220196B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020051067A (en) * | 2000-12-22 | 2002-06-28 | 신현준 | Reduction method for NOx emission using lobed burner |
| CN2847058Y (en) * | 2005-06-28 | 2006-12-13 | 西安热工研究院有限公司 | Multiedge low speed burner |
| CN203874686U (en) * | 2014-05-22 | 2014-10-15 | 西安交通大学 | Square venturi mixer with adjustable flow area |
| CN207146395U (en) * | 2017-09-05 | 2018-03-27 | 谭耀荣 | Burner and there is its gas furnace |
| CN108518366A (en) * | 2018-06-06 | 2018-09-11 | 中国人民解放军国防科技大学 | Two-dimensional-configuration multi-support-plate ejector and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110220196B (en) | 2021-07-02 |
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