CN204213931U - A kind of burner being applicable to low-oxygen environment - Google Patents
A kind of burner being applicable to low-oxygen environment Download PDFInfo
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- CN204213931U CN204213931U CN201420678237.0U CN201420678237U CN204213931U CN 204213931 U CN204213931 U CN 204213931U CN 201420678237 U CN201420678237 U CN 201420678237U CN 204213931 U CN204213931 U CN 204213931U
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- burner
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- air door
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Abstract
The utility model relates to fuel gas combustion equipment technical field of heating, discloses a kind of burner being applicable to low-oxygen environment.The described burner being applicable to low-oxygen environment, is characterized in that, comprising: burner plate (1), hybrid chamber (2), induction tunnel (3), fixed throttle plate (4), movable air door plate (5) and nozzle (6); Described hybrid chamber (2) is positioned at burner plate (1) below, and induction tunnel (3) is communicated with hybrid chamber (2) and nozzle (6), and nozzle (6) passes the interstitial hole of movable air door plate (5) and fixed throttle plate (4) successively and is connected to the inlet end of induction tunnel (3); Described movable air door plate (5) and fixed throttle plate (4) measure-alike, fixed throttle plate (4) is provided with four fan-shaped air holes of ring (4b) around interstitial hole (4a), movable air door plate (5) is provided with four fan-shaped air holes of ring (5b) around interstitial hole (5a), and the edge of movable air door plate (5) is also provided with spanner (5c).Described burner, by the improvement of air door plate and the improvement of burner plate, not only make air and combustion gas mix evenly, also improve the collecting amount of oxygen, ensure that the normal combustion of combustion gas at burner plate, decrease toxic emission, save combustion gas resource, be applicable to height above sea level regional at the Altitude of 4000 meters.
Description
Technical field
The utility model relates to fuel gas combustion equipment technical field of heating, particularly, relates to a kind of burner being applicable to low-oxygen environment.
Background technology
Fuel gas combustion equipment be a kind of make the such as combustion gas such as natural gas or biogas ignition with by its chemical energy for heat energy and the equipment discharged, common are the household gas range of small-power type and mid power and for the commercial gas-fired stove of food processing.In recent years in order to respond the spirit of the times of energy-saving and emission-reduction, improve the efficiency of heating surface, reduce the concentration of the pollutant such as CH, CO, NOx and soot PM in combustion product gases, low flame stove or aphlogistic catalytic burner become market new lover.The operation principle of catalytic burner scribbles catalyst layer on burner plate, and in catalyticing combustion process, reactant forms low-energy surface free radical at catalyst surface, generates vibration excited state product, finally give off energy in the mode of infrared radiation.
But combustion apparatus (such as conventional fuel gas buring stove, warming stove and gas kitchen ranges etc.) at present is on the market mainly for home design, can not be applicable to highlands or high aerial.Under the low-oxygen environment such as plateau or high-altitude, conventional gas-fired equipment cannot normal combustion, because anoxic combustion gas can not Thorough combustion, not only can produce the dusty gas such as such as CO and NOx, injury health, and efficiency of combustion reduces, waste combustion gas resource.
For the limitation of above-mentioned current combustion equipment under low-oxygen environment, be necessary to provide a kind of combustion apparatus being applicable to low-oxygen environment, enable combustion apparatus realize normal combustion under low-oxygen environment, reduce toxic emission, save combustion gas resource.
Utility model content
For the limitation of previous combustion equipment under low-oxygen environment, the utility model provides a kind of burner being applicable to low-oxygen environment, and described burner can realize normal combustion under low-oxygen environment, thus reduces toxic emission, saves combustion gas resource.
The technical solution adopted in the utility model, provides a kind of burner being applicable to low-oxygen environment, it is characterized in that, comprising: burner plate, hybrid chamber, induction tunnel, movable air door plate, fixed throttle plate and nozzle; Described hybrid chamber is positioned at below burner plate, and induction tunnel is communicated with hybrid chamber and nozzle, nozzle successively through movable air door plate and fixed throttle plate interstitial hole and be connected to the inlet end of induction tunnel; Described movable air door plate and fixed throttle plate measure-alike, fixed throttle plate is provided with four fan-shaped air holes of ring around interstitial hole, and movable air door plate is provided with four fan-shaped air holes of ring around interstitial hole, and the edge of movable air door plate is also provided with spanner.The movable air door plate of described burner and fixed throttle plate provide four fan-shaped air holes of ring, be compared to existing two pore structures, not only can make air and combustion gas mixing evenly, incoming air area can also be improved, collect more oxygen in unit interval, to realize at burner plate place burning completely, thus reduce the discharge of the dusty gas such as such as CO and NOx, guarantee efficiency of combustion simultaneously, save combustion gas resource.
Concrete, described burner plate surface scribbles rare earth catalyst oxidant layer.Described rare earth catalyst oxidant layer has the double effects of storage oxygen and catalysis fuel gas buring, can collect more oxygen for fuel gas buring, reduces further and pollutes and save combustion gas resource.
Concrete, described nozzle comprises nozzle inlet end and nozzle outlet side, and nozzle inlet end inside is provided with the first pylon cavity, the first frustum cavity, the second pylon cavity successively along airintake direction, and inside, nozzle outlet side is provided with the 3rd pylon cavity; The bore of described first frustum cavity is arranged from big to small along airintake direction, and the bore of the first pylon cavity is identical with the caliber size of the 3rd pylon cavity.The first frustum cavity in described nozzle, for assembling combustion gas, improves induction air flow ratio, prevents tempering phenomenon.
Concrete, described burner also comprises nut; There is nut periphery, described nozzle outlet side along the bottom cover of airintake direction.Described nut is the regular hexagon column structure of hollow, is provided with first group of parallel via hole via hole parallel with second group in the periphery of nut; Place second, the via hole center plane of place first, the via hole center plane via hole parallel with second group of first group of parallel via hole is parallel but do not overlap; First group of parallel via hole comprises 3 via holes, and first group of via hole comprises 3 via holes, and described 6 via holes are provided with opening respectively on six of nut outer surfaces; Described nozzle outlet side is provided with the via hole that via hole parallel with first group via hole parallel with second group respectively mates along the bottom of outgassing direction.Via hole and the described nozzle outlet side bottom via of described nut coordinate and are communicated with outside and the 3rd pylon cavity, thus two groups of air inlets being in diverse location are provided, further increase intake, more oxygen is provided, simultaneously also contributes to combustion gas due to air inlet position difference and oxygen premix in the 3rd pylon cavity is even.
To sum up, the burner provided described in the utility model is provided, by the improvement of air door plate and the improvement of burner plate, not only make air and combustion gas mix evenly, also improve the collecting amount of oxygen, ensure that the normal combustion of combustion gas at burner plate, decrease toxic emission, save combustion gas resource, be applicable to the application of low-oxygen environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of this utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the burner structure chart being applicable to low-oxygen environment that the utility model embodiment provides.
Fig. 2 is the structure chart being applicable to movable air door plate and fixed throttle plate in the burner of low-oxygen environment that the utility model embodiment provides.
Fig. 3 is the structure chart being applicable to nozzle in the burner of low-oxygen environment that the utility model embodiment provides.
Fig. 4 is the sectional view being applicable to nozzle in the burner of low-oxygen environment that the utility model embodiment provides.
In above-mentioned accompanying drawing: 1, burner plate 2, hybrid chamber 3, induction tunnel 4, fixed throttle plate 4a, the interstitial hole 4b of fixing door-plate, the fan-shaped air holes 5 of ring of fixed throttle plate, movable air door plate 5a, the interstitial hole 5b of movable doorboard, the fan-shaped air holes 6 of ring of movable air door plate, nozzle 6a, first pylon cavity 6b, first frustum cavity 6c, second pylon cavity 6d, 3rd pylon cavity 6e, nozzle inlet end 6f, nozzle outlet side 7, nut 7a, first group of parallel via hole 7b, second group of parallel via hole 8, spring.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, describe by way of example the burner being applicable to low-oxygen environment that the utility model provides in detail.It should be noted that at this, the explanation for these way of example understands the utility model for helping, but does not form restriction of the present utility model.
Various technology described herein may be used for but is not limited to fuel gas combustion equipment field, can also be used for other similar field.
Term "and/or" herein, it is only a kind of incidence relation describing affiliated partner, three kinds of relations can be there are in expression, such as, A and/or B, can represent: individualism A, individualism B, there are A and B tri-kinds of situations simultaneously, herein term " or/and " be describe another kind of affiliated partner relation, can there are two kinds of relations in expression, such as, A is or/and B, can represent: individualism A, individualism A and B two kinds of situations, in addition, character "/" herein, general expression forward-backward correlation is to liking a kind of "or" relation.
Term " tapering " refers to the ratio of the basal diameter of cone and cone height herein, or the ratio of the difference of the bottom surface of frustum and the diameter of end face and frustum height, although the virtual drift angle in the drift angle of described tapering and conic section or frustum cross section is different, but convert by trigonometric function, reduction formula is as follows:
In formula, λ is the tapering of cone or frustum, and θ is the drift angle of conic section or the virtual drift angle in frustum cross section.
Embodiment one, Fig. 1 shows the burner structure chart being applicable to low-oxygen environment that the present embodiment provides, Fig. 2 shows the structure chart being applicable to movable air door plate and fixed throttle plate in the burner of low-oxygen environment that the present embodiment provides, Fig. 3 shows the structure chart being applicable to nozzle in the burner of low-oxygen environment that the present embodiment provides, and Fig. 4 shows the sectional view being applicable to nozzle in the burner of low-oxygen environment that the utility model embodiment provides.The described burner being applicable to low-oxygen environment, is characterized in that, comprising: burner plate 1, hybrid chamber 2, induction tunnel 3, fixed throttle plate 4, movable air door plate 5 and nozzle 6; Described hybrid chamber 2 is positioned at below burner plate 1, and induction tunnel 3 is communicated with hybrid chamber 2 and nozzle 6, nozzle 6 successively through movable air door plate 5 and fixed throttle plate 4 interstitial hole and be connected to the inlet end of induction tunnel 3; Described movable air door plate 5 and fixed throttle plate 4 measure-alike, fixed throttle plate 4 is provided with four fan-shaped air holes 4b of ring around interstitial hole 4a, movable air door plate 5 is provided with four fan-shaped air holes 5b of ring around interstitial hole 5a, and the edge of movable air door plate 5 is also provided with spanner 5c.In described burner, input combustion gas by nozzle 6, fixed throttle plate 4 and movable air door plate 5 coordinate provides enough air, then through induction tunnel 3 importing value hybrid chamber 2, after hybrid chamber 2 fully mixing, there is combustion reaction and release energy in combustion gas at burner plate place.Described fixed throttle plate 4 and movable air door plate 5 are provided with the air holes that position is identical, aperture size is identical, the spanner 5c of rotary moveable air door plate 5 in use, the air holes coincidence degree of two wind control plates can be changed, and then regulate the size of air holes, under different atmospheric pressures, make the infrared radiation state that burning reaches best.The fixed throttle plate 4 of the present embodiment and movable air door plate 5 provide four fan-shaped air holes of ring, are compared to existing two pore structures, on the one hand, can be air and combustion gas in induction tunnel 2 evenly premixed.Can also incoming air area be improved on the other hand, in the unit interval, collect more oxygen, make combustion gas realize at burner plate place burning completely, thus reduce the discharge of the dusty gas such as such as CO and NOx, guarantee efficiency of combustion simultaneously, save combustion gas resource.
Concrete, described burner plate 1 surface scribbles rare earth catalyst oxidant layer.Described rare earth catalyst oxidant layer has the double effects of storage oxygen and catalysis fuel gas buring, can collect more oxygen for fuel gas buring, reduces further and pollutes and save combustion gas resource.As what optimize, the rare earth catalyst that the present embodiment adopts is prepared by yttrium, alkali earth metal and transition metal and obtains, and chemical general formula is A
xa '
1-xb
yb '
1-y-zpd
zo
3.Comprise cerium oxide in described rare earth catalyst, the content of cerium oxide is at Ce
2o
2and CeO
2between change, for storing up oxygen and oxygen release, when higher with the oxygen concentration of burner plate surface contact, its Absorbable rod oxygen also stores, when lower with the oxygen concentration of burner plate surface contact, it can discharge oxygen again, guarantees the Thorough combustion of combustion gas further.The combustion reaction process of described burner plate is as follows, combustion reaction controls to carry out (being caused by rare earth catalyst surface free radical) at burner plate fire hole inner surface by rare earth catalyst, reactant is made to form low-energy surface free radical on rare earth catalyst surface, then generate vibration excited state product but not excited electronic state product (excited electronic state product causes visible ray and flame), finally almost the complete mode with infrared radiation releases energy.
Concrete, the interior angle [alpha] of the fan-shaped air holes 5b of ring of described movable air door plate 5 is not less than 40 degree and is not more than 70 degree; The interior angle of the fan-shaped air holes 4b of ring of fixed throttle plate 4 is identical with the interior angular dimension of the fan-shaped air holes 5b of the ring of movable air door plate 5.The internal-and external diameter difference DELTA r of the fan-shaped air holes 5b of ring of movable air door plate 5 and the ratio of movable air door plate 5 radius R are not less than 0.6 and are not more than 0.7; The internal-and external diameter difference of the fan-shaped air holes 4b of ring of fixed throttle plate 4 is identical with the internal-and external diameter difference of the fan-shaped air holes 5b of the ring of movable air door plate 5.As what optimize, in the present embodiment, the interior angle [alpha] of the fan-shaped air holes 5b of ring of movable air door plate 5 is 60 degree, the internal-and external diameter difference DELTA r of the fan-shaped air holes 5b of ring of movable air door plate 5 is 11mm, movable air door plate 5 radius R is 17mm, and the internal-and external diameter difference DELTA r of the fan-shaped air holes 5b of described ring and the ratio of movable air door plate 5 radius R are 0.64.
Concrete, described nozzle 6 comprises nozzle inlet end 6e and nozzle outlet side 6f, nozzle inlet end 6e inside is provided with the first pylon cavity 6a, the first frustum cavity 6b, the second pylon cavity 6c successively along airintake direction, and 6f inside, nozzle outlet side is provided with the 3rd pylon cavity 6d; The bore of described first frustum cavity 6b is arranged from big to small along airintake direction, and the bore of the first pylon cavity 6a is identical with the caliber size of the 3rd pylon cavity 6d.The tapering of described first frustum cavity 6b is not less than 0.394 and is not more than 0.423.The first frustum cavity 6b in described nozzle is set to suitable tapering, can carry out gather qi together to gas, improves air velocity, thus prevents tempering phenomenon.When the tapering of the first frustum cavity 6b is 0.394, the corresponding virtual vertex angle theta in cross section is 70 degree; When the tapering of the first frustum cavity 6b is 0.423, the corresponding virtual vertex angle theta in cross section is 75 degree; The virtual vertex angle theta in cross section of described first frustum cavity 6b is not less than 70 degree and is not more than 75 degree.As what optimize, in the present embodiment, the tapering of the first frustum cavity 6b is 0.405, and the corresponding virtual vertex angle theta in cross section is 72 degree.
Concrete, described burner also comprises nut 7; There is nut 7 6f periphery, described nozzle outlet side along the bottom cover of airintake direction.Described nut 7 is the regular hexagon column structure of hollow, is provided with first group of parallel via hole 7a via hole 7b parallel with second group in the periphery of nut 7; Place second, the via hole center plane of place first, the via hole center plane via hole 7b parallel with second group of first group of parallel via hole 7a is parallel but do not overlap; First group of parallel via hole 7a comprises 3 via holes, and first group of via hole 7b comprises 3 via holes, and described 6 via holes are provided with opening respectively on six of nut 7 outer surfaces; Described nozzle outlet side is provided with the via hole that via hole parallel with first group via hole parallel with second group respectively mates along the bottom of outgassing direction.Via hole and the described nozzle outlet side 6f bottom via of described nut 7 coordinate and are communicated with outside and the 3rd pylon cavity 6d, thus two groups of air inlets being in diverse location are provided, further increase intake, more oxygen is provided, simultaneously also contributes to combustion gas due to air inlet position difference and oxygen premix in the 3rd pylon cavity is even.In addition, the size of air inlet can also be adjusted according to actual environment by rotating nut 7, thus provide appropriate oxygen for the burning completely of combustion gas.Concrete further, the parallel distance d of described first plane and the second plane and the ratio of nut length D are not less than 0.1 and are not more than 0.4.As what optimize, in the present embodiment, the length D of nut is 8mm, and the parallel distance d of described first plane and the second plane is 1.6mm, and the ratio of described parallel distance d and nut length D is 0.2.
Concrete, described burner also comprises spring 8; 6f periphery, described nozzle outlet side is also overlapped and is had spring 8.Spring 8 is for fixing rotatable nut 7.
The burner structure of the present embodiment may be used for the combined type combustion apparatus of two induction tunnel, also can the combustion apparatus of single induction tunnel or the combined type combustion apparatus of induction tunnel more than at least three, wherein in the combined type combustion apparatus of two induction tunnel, the air inlet port of each induction tunnel is connected with above-mentioned air door structure and nozzle arrangements, the firepower size of combustion apparatus can be regulated according to different demand, and the combined type combustion apparatus with more induction tunnels can realize high-power output in low-oxygen environment, the commercial use in the fields such as such as food processing can be applied in.
Test by experiment, the described burner of the present embodiment can in the scope that oxygen content is 14.3 ~ 20.8% normal combustion, and the content producing the waste gas such as such as CO and NOx is all less, can guarantee the life safety of user of service.In actual applications, described burner normally can use in the highlands of height above sea level 4000 meters, the ambient parameter of this area is: content of oxygen in air is about 14.5%, and atmospheric pressure is between 50KPa to 55KPa, and the temperature of local water boiling is between 80 DEG C-84 DEG C.Described burner can be, but not limited to for household cooker and commercial kitchen range, such as family expenses plateau infrared kitchen range, plateau infrared ray barbecue, infrared ray steam box, commercial kitchen range and plateau industry infrared burner etc.
The above-mentioned burner provided, by the improvement of air door plate and the improvement of burner plate, not only make air and combustion gas mix evenly, also improve the collecting amount of oxygen, ensure that the normal combustion of combustion gas at burner plate, decrease toxic emission, save combustion gas resource, be applicable to height above sea level regional at the Altitude of 4000 meters.
As mentioned above, the utility model can be realized preferably.For a person skilled in the art, according to instruction of the present invention, designing the multi-form burner being applicable to low-oxygen environment does not need performing creative labour.When not departing from principle of the present utility model and spirit, these embodiments being changed, revising, replace, integrate and modification still falls in protection domain of the present utility model.
Claims (10)
1. be applicable to a burner for low-oxygen environment, it is characterized in that, comprising: burner plate (1), hybrid chamber (2), induction tunnel (3), fixed throttle plate (4), movable air door plate (5) and nozzle (6);
Described hybrid chamber (2) is positioned at burner plate (1) below, induction tunnel (3) is communicated with hybrid chamber (2) and nozzle (6), and nozzle (6) passes the interstitial hole of movable air door plate (5) and fixed throttle plate (4) successively and is connected to the inlet end of induction tunnel (3);
Described movable air door plate (5) and fixed throttle plate (4) measure-alike, fixed throttle plate (4) is provided with four fan-shaped air holes of ring (4b) around interstitial hole (4a), movable air door plate (5) is provided with four fan-shaped air holes of ring (5b) around interstitial hole (5a), and the edge of movable air door plate (5) is also provided with spanner (5c).
2. a kind of burner being applicable to low-oxygen environment as claimed in claim 1, is characterized in that, comprising:
Described burner plate (1) surface scribbles rare earth catalyst oxidant layer.
3. a kind of burner being applicable to low-oxygen environment as claimed in claim 1, is characterized in that, comprising:
The interior angle [alpha] of the fan-shaped air holes of ring (5b) of movable air door plate (5) is not less than 40 degree and is not more than 70 degree;
The interior angle of the fan-shaped air holes of ring (4b) of fixed throttle plate (4) is identical with the interior angular dimension of the fan-shaped air holes of ring (5b) of movable air door plate (5).
4. a kind of burner being applicable to low-oxygen environment as claimed in claim 1, is characterized in that, comprising:
The internal-and external diameter difference DELTA r of the fan-shaped air holes of ring (5b) of movable air door plate (5) and the ratio of movable air door plate (5) radius R are not less than 0.6 and are not more than 0.7;
The internal-and external diameter difference of the fan-shaped air holes of ring (4b) of fixed throttle plate (4) is identical with the internal-and external diameter difference of the fan-shaped air holes of ring (5b) of movable air door plate (5).
5. a kind of burner being applicable to low-oxygen environment as claimed in claim 1, is characterized in that, comprising:
Described nozzle (6) comprises nozzle inlet end (6e) and nozzle outlet side (6f), nozzle inlet end (6e) inside is provided with the first pylon cavity (6a), the first frustum cavity (6b), the second pylon cavity (6c) successively along airintake direction, and nozzle outlet side (6f) inside is provided with the 3rd pylon cavity (6d);
The bore of described first frustum cavity (6b) is arranged from big to small along airintake direction, and the bore of the first pylon cavity (6a) is identical with the caliber size of the 3rd pylon cavity (6d).
6. a kind of burner being applicable to low-oxygen environment as claimed in claim 5, is characterized in that, comprising:
The tapering of described first frustum cavity (6b) is not less than 0.394 and is not more than 0.423.
7. a kind of burner being applicable to low-oxygen environment as claimed in claim 5, is characterized in that, comprising:
Described burner also comprises nut (7);
There is nut (7) described nozzle outlet side (6f) periphery along the bottom cover of outgassing direction.
8. a kind of burner being applicable to low-oxygen environment as claimed in claim 7, is characterized in that, comprising:
The regular hexagon column structure that described nut (7) is hollow, is provided with first group of parallel via hole (7a) via hole (7b) parallel with second group in the periphery of nut (7);
Place second, the via hole center plane at the place first, via hole center plane via hole parallel with second group (7b) of first group of parallel via hole (7a) is parallel but do not overlap;
First group of parallel via hole (7a) comprises 3 via holes, and first group of via hole (7b) comprises 3 via holes, and described 6 via holes are provided with opening respectively on six outer surfaces of nut (7);
Described nozzle outlet side (6f) is provided with the via hole that via hole (7a) parallel with first group via hole (7b) parallel with second group is respectively mated along the bottom of outgassing direction.
9. a kind of burner being applicable to low-oxygen environment as claimed in claim 8, is characterized in that, comprising:
The parallel distance d of described first plane and the second plane and the ratio of nut length D are not less than 0.1 and are not more than 0.4.
10. a kind of burner being applicable to low-oxygen environment as claimed in claim 5, is characterized in that, comprising:
Described burner also comprises spring (8);
Described nozzle outlet side (6) periphery is also overlapped and is had spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420678237.0U CN204213931U (en) | 2014-11-13 | 2014-11-13 | A kind of burner being applicable to low-oxygen environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420678237.0U CN204213931U (en) | 2014-11-13 | 2014-11-13 | A kind of burner being applicable to low-oxygen environment |
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| Publication Number | Publication Date |
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| CN204213931U true CN204213931U (en) | 2015-03-18 |
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| CN201420678237.0U Expired - Fee Related CN204213931U (en) | 2014-11-13 | 2014-11-13 | A kind of burner being applicable to low-oxygen environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915908A (en) * | 2019-03-07 | 2019-06-21 | 广东瑞马热能设备制造有限公司 | A kind of air filter of the adjustable air air inflow of gas heating stove |
-
2014
- 2014-11-13 CN CN201420678237.0U patent/CN204213931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915908A (en) * | 2019-03-07 | 2019-06-21 | 广东瑞马热能设备制造有限公司 | A kind of air filter of the adjustable air air inflow of gas heating stove |
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