CN103791499B - Combustion device - Google Patents
Combustion device Download PDFInfo
- Publication number
- CN103791499B CN103791499B CN201210430773.4A CN201210430773A CN103791499B CN 103791499 B CN103791499 B CN 103791499B CN 201210430773 A CN201210430773 A CN 201210430773A CN 103791499 B CN103791499 B CN 103791499B
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- Prior art keywords
- flame
- burner
- temperature sensor
- hole
- glory
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention provides a combustion device. The combustion device is provided with a temperature sensor, wherein the temperature sensor is projected from the outer side to the inner side in a mode of facing spaces above all combustion plates of primary combustion type combustor; excess air rate is detected according to the output of the temperature sensor; the quantity of primary air supplied to the combustors and the quantity of fuel gas are regulated; flameless holes are formed in all portions, including portions positioned right below the temperature sensor, of each combustor in a specialized range; and change on detection precision of the excess air rate due to excursion of the stand-out of the temperature sensor can be prevented. The long side direction of the temperature sensor serves as the X-axis direction, the direction which is perpendicular to the X-axis direction serves as a Y-axis direction, and a long and narrow portion of which the width of the Y-axis direction is reduced as compared with the width of the Y-axis direction of an end is formed by a portion, which extends from the end on the inner side of the X-axis direction of the flameless hole to the outer side of the X-axis direction, of the flameless hole.
Description
Technical field
The present invention relates to possess the burner of all primary combustion burner, all primary combustion burner exists
The upper surface of the burner body of the box like being open upward is equipped with burner plate, from relative to fixing with burner body
Multiple glory holes that the outer edge of fixed part flame forming region close to the inner portion is formed, spray fuel gas pre- with primary air
Mixed gas simultaneously make the pre-mixed gas all primary combustion.
Background technology
In this all primary combustion burner, when the excess air ratio of pre-mixed gas（Primary air amount/fuel
Theoretical air requirement needed for the burning of gas）For 1 when, by pre-mixed gas burning produce flame temperature highest, with
Excess air ratio is more than 1 and increases, and the temperature of the flame produced by pre-mixed gas is reduced.Also, due to flame temperature
Reduction, the amount of the nitrogen oxides in burning waste gas is reduced, therefore preferably makes excess air ratio be more than 1.On the other hand, if air
Excess rate is excessive, then less than spouting velocity, flame is easy to rise the burning velocity of pre-mixed gas.Therefore, with the face of burner plate
Flame forming region on mode arrange from comparing the outer rim of burner plate externally to internal prominent temperature sensor（For example
Thermocouple）, and be controlled to：According to the output indirect detection excess air ratio of the temperature sensor, and according to the output to supply
The fuel gas scale of construction to burner is adjusted with primary air amount at least one party, so as to excess air ratio is maintained more than 1
Regulation setting value.
However, it is difficult to the overhang to temperature sensor relative to burner plate is consistently managed.Here, if being configured to
Temperature sensor is placed directly within into flame, is then placed in the area of the temperature sensor of flame（Heating surface area）Because of temperature sensor
The skew of overhang and offset, so as to temperature sensor output produce change.As a result, even if excess air ratio is certain, temperature
The output of degree sensor also changes because of the skew of the overhang of temperature sensor, so as to the accuracy of detection of excess air ratio is disliked
Change.
In order to eliminate involved harmful effect, in the past, it is known that：In the flame forming region of burner plate, and throughout including
Prescribed limit positioned at the part of the underface of temperature sensor be provided with not formed glory hole without flame hole part（For example, join
According to patent document 1）.Here, using the Flame Heating Temperature sensor without the glory hole around flame hole part, and temperature is passed
Sensor is placed directly within the situation of flame and compares, the change of the temperature sensor output caused by the skew of the overhang of temperature sensor
Change amplitude diminishes.
However, here, the long side direction of temperature sensor is made the projected direction of temperature sensor as X-direction
For X-direction inner side, the top ends of temperature sensor are mainly by the end on the inside of the X-direction without flame hole part in X-axis side
Heat to the flame of adjacent glory hole.If also, the position of temperature sensor is because of the reduction of the overhang of temperature sensor
And to X-direction lateral offset, then the top ends of temperature sensor away from the X-direction without flame hole part on the inside of end
Adjacent glory hole, so as to the heating amount of the top ends of temperature sensor is reduced.Here, due to the top ends in temperature sensor
It is provided with temperature detecting part（Temperature sensor is hot junction for the situation of thermocouple）, therefore the output of temperature sensor is because of top
The heating amount in portion and be a greater impact, so as to temperature sensor output because the reduction of the overhang of temperature sensor cannot
Ignoring ground reduces.As a result, the inspection of excess air ratio caused by the skew of the overhang of temperature sensor cannot be substantially prevented from
Survey the deterioration of precision.
Patent document 1：Open clear 63-54946 publications in fact
The content of the invention
The present invention makes in view of the above circumstances, its object is to provide and is prevented from by the inclined of the overhang of temperature sensor
The burner that the accuracy of detection of the excess air ratio that shifting causes deteriorates.
In order to solve above-mentioned problem, the burner of the present invention possesses：All primary combustion burner, it is up opened
The upper surface of the burner body of the box like of mouth is equipped with burner plate, from relative to as the fixation fixed with burner body
Multiple glory holes that the outer edge of the burner plate in portion flame forming region in the inner part is formed spray fuel gas and primary air
Pre-mixed gas, and make the pre-mixed gas all primary combustion；And temperature sensor, it is with the face of the flame of burner plate
Mode above forming region is projected relative to the outer rim outside-in of burner plate, and the burner is passed according to the temperature
The output of sensor is adjusted to the fuel gas scale of construction of supply to burner with least one party of primary air amount, in burner plate
Flame forming region, throughout including positioned at temperature sensor underface part including prescribed limit and arrange and be formed without
Glory hole without flame hole part, using the long side direction of temperature sensor as X-direction, the projected direction of temperature sensor is made
For X-direction inner side, using orthogonal with X-direction and parallel with the plate face of burner plate direction as Y direction, from without glory hole
End on the inside of the X-direction in portion to the part without flame hole part that X-direction outside extends is formed as：With without flame hole part
Compare the elongated shape part of Y direction reduced width in end on the inside of X-direction.
According to the present invention, even if temperature sensor top ends are away from without flame because of the reduction of the overhang of temperature sensor
The glory hole adjacent in X-direction of the end on the inside of the X-direction of hole portion, temperature sensor is also close to without flame hole part
The glory hole adjacent in Y direction of elongated shape part.Therefore, though caused due to the reduction of overhang with without glory hole
The flame of the adjacent glory hole in end on the inside of the X-direction in portion is reduced to the heating amount of temperature sensor top ends, and without fire
The flame of the adjacent glory hole in the elongated shape part of flame hole portion also increases the heating amount of temperature sensor top ends, so as to temperature
The output of degree sensor is not lowered.Therefore, it is possible to the air for effectively preventing the skew by the overhang of temperature sensor from causing
The deterioration of the accuracy of detection of excess rate.
If however, glory hole load（By the ejection gas flow of the caloric value conversion of the unit area of glory hole）Increase, then
Flame is easy to rise.If also, without flame rising is produced around flame hole part, the output of temperature sensor is reduced, empty
The accuracy of detection of gas excess rate deteriorates.Therefore, in the present invention, it is preferred to, positioned at the elongated shape part without flame hole part Y
Second is arranged in the side of direction of principal axis one and each flame forming region of another side without flame hole part, this is second without glory hole position
In temperature sensor heating glory hole shape that is adjacent with the elongated shape part without flame hole part and being formed with multiple glory holes
Into the Y direction outside in portion, and it is formed without glory hole.Thus, pre-mixed gas are back to second and realize without flame hole part
The effect of flame is kept, so as to suppress the flame in temperature sensor heating glory hole forming portion to rise.Therefore, it is possible to prevent
Risen the deterioration of the accuracy of detection of the excess air ratio for causing by flame.
Additionally, flame rises can be produced as starting point than the outer end of relatively low flame forming region with temperature.Here, if
End on the outside of the X-direction of the flame forming region of burner plate is provided with glory hole forming portion, and the glory hole forming portion is formed
Have and be pre-mixed compared with including the general glory hole being formed at including the glory hole of temperature sensor heating glory hole forming portion
The slower multiple deceleration glory holes of the spouting velocity of gas, then can be more reliably prevented from temperature sensor heating glory hole
The flame of forming portion rises.
If in addition, the flame for resulting from Y direction outer end is risen to up to second without flame hole part, cannot prevent in temperature
The heating of degree sensor is risen with the flame of glory hole forming portion.It is preferable therefore that burner possesses barrier, the obstacle object plane
It is pointed to relative to the second outside glory hole forming portion top leaned on the outside of Y direction without flame hole part, for from the outside of being formed at
The airflow collision that at least a portion of multiple glory holes of glory hole forming portion sprays.Thus, airflow collision is sprayed to barrier
And flame rises disappearance such that it is able to prevent flame from rising to up to second without flame hole part.
Additionally, in the burner, generally, ignitor is also attached in addition to temperature sensor and for lighting a fire and putting out
The flame rod of fire detection.Here, the flame that ignitor is configured in the face of the side of Y direction one without flame hole part is formed into area
The outside glory hole forming portion top in domain, by flame rod the flame in the face of another side of Y direction without flame hole part is configured to
The outside glory hole forming portion top of forming region, if the barrier by described in ignitor and flame bar construction, can cut down
Part number of packages and cost of implementation decline, therefore are favourable.
Description of the drawings
Fig. 1 is the stereogram of the burner of embodiments of the present invention.
Fig. 2 is the cross-sectional side elevational view of the burner of embodiment.
Fig. 3 is the sectional view obtained along the Ш-Ш line cuttings of Fig. 2.
Fig. 4 is the amplification top view in cross-section obtained along IV-IV line cutting of Fig. 2.
Fig. 5 is the chart for illustrating result of the test.
Description of reference numerals：
1 ... all primary combustion burner；2 ... burner bodies；3 ... burner plates；3a ... glory holes；3b ... slows down fiery
Flame hole；31 ... flame forming regions；32 ... without flame hole part；End on the inside of X-directions of the 32a ... without flame hole part；32b…
Elongated shape part without flame hole part；Glory hole forming portion is used in the heating of 33 ... temperature sensors；34 ... second without flame hole part；
35 ... outside glory hole forming portions；36 ... keep flame glory hole forming portion；5 ... thermocouples（Temperature sensor）；6 ... igniting
Electrode；7 ... flame rods.
Specific embodiment
All primary combustion burner is represented with reference to Fig. 1 ~ Fig. 3,1.The burner 1 is configured in burner body 2
Upper surface is equipped with the burner plate 3 of ceramics system.
Burner body 2 is die cast product, and is formed as the box-shaped of upper opening.Set in the upper surface of burner body 2
It is equipped with the flange part 21 for surrounding the opening portion that burned plate 3 is covered.Also, by the outer edge of burner plate 3 with flange part 21 it
Between clamp liner 211 state be fixed on flange part 21.It is set with relative to fixing with burner body 2 in burner plate 3
The outer edge of fixed part flame forming region 31 close to the inner portion（With reference to Fig. 4）, in the flame forming region 31 multiple fire are formed with
Flame hole 3a.
It is provided with burner body 2：Distributing chamber 22 and the bottom of distributing chamber 22 in the face of the lower surface of burner plate 3
Mixing chamber 23 under wall 221.In addition, being provided with air supply chamber 24 in the downside of mixing chamber 23, the air supply chamber 24 is installed in burning
The casing 241 of the lower surface of device main body 2 is surrounded.Fan 242 is connected with horizontal one end of air supply chamber 24.
The opening portion 222 for connecting distributing chamber 22 with mixing chamber 23 is formed with the rear portion of the diapire 221 of distributing chamber 22.Separately
Outward, distributing chamber 22 is divided into upper and lower two spaces by dividing plate 223.Also, it is flowed into distribution via opening portion 222 from mixing chamber 23
The pre-mixed gas of the lower space of room 22, via the top of the multiple distribution hole 223a and distributing chamber 22 for being formed at dividing plate 223
Space and import to burner plate 3.The pre-mixed gas for importing to burner plate 3 spray and all primary combustion from burner plate 3.
The front surface of mixing chamber 23 is blocked with the antetheca 231 of the one of burner body 2.Transversely separate in antetheca 231
Multiple nozzle bores 232 are alternately formed.In addition, the front surface in antetheca 231 is provided with gas manifold via dividing plate 251
25, the dividing plate 251 is divided between antetheca 231 at it and forms the nozzle passage 233 connected with said nozzle hole 232.In dividing plate
251 are formed with the opening for connecting the gas passage 252 in gas manifold 25 with nozzle passage 233（It is not shown）, to the opening
The magnetic valve 253 being opened and closed is installed on gas manifold 25.Also, when magnetic valve 253 is opened, supply to nozzle passage 233
To fuel gas, and from the spray fuel gas of each nozzle bore 232.
The bottom surface of mixing chamber 23 is blocked by the base plate 234 non-integral with burner body 2.It is curved in the leading section of base plate 234
Song is formed with wallboard 235, and the wallboard 235 is with separating ventilation space opposed with antetheca 231, and makes what is sprayed from each nozzle bore 232
Fuel gas is collided.In addition, offering what is connected with air supply chamber 24 in the part of the ventilation space in the face of the bottom surface of mixing chamber 23
Air induction port 236.Also, from fan 242 air of air supply chamber 24 is delivered to via air induction port 236 as primary air
And supply to ventilation space, the fuel gas for colliding wallboard 235 and spreading mixes in mixing chamber 23 with primary air and generates
Pre-mixed gas.
Additionally, in the present embodiment, by with the partition wall 26 of the one of burner body 2 by distributing chamber 22 and mixing chamber 23
It is divided into 3 parts：Than larger #1 distributing chamber 22 and mixing chamber 23 and smaller #2 and #3 distributing chamber 22 and mixing chamber 23,
Substantially constitute the structure of three burner combinations.Also, gas manifold 25 is provided with 3 magnetic valves 253, so as to
Fuel gas is respectively fed to be divided into #1～#3 mixing chambers 23 of 3 parts.In addition, burner plate 3 is divided into into 2 parts：Cover
Cover than larger #1 distributing chamber 22 #1 burner plates 3 and cover the #2 burner plates 3 of smaller #2 and #3 distributing chamber 22,22.This
Outward, 31 points of the flame forming region of #2 burner plates 3 is the region in #2 distributing chamber 22 and the area in #3 distributing chamber 22
Domain.
In addition, the burner of present embodiment possesses the burning frame 4 of the combustion space of the top for surrounding burner plate 3.Combustion
Burn frame 4 to possess：Be accommodated with the supplying hot water as heating object use or heating heat exchanger 41 top framework 42；And with
The bottom framework 43 that the lower end of top framework 42 links.In bottom, the lower end of framework 43 is formed with inturned flange 431, and this is interior curved
Flange 431 is linked to flange part 21 with the state for clamping liner 211 between the flange part 21 of burner body 2.In addition, arranging
Having erect plate portion 432 from what the inner edge of inturned flange 431 erected.It is formed with internally in the upper-end bent for erecting plate portion 432
Bend and be sticked in the engaging plate portion 433 of the outer edge upper surface of burner plate 3.Also, work as and inturned flange 431 is linked to into flange
During portion 21, pressed downwards by engaging plate portion 433 and fixed combustion plate 3.
In addition, being configured with thermal insulation board on the inside of the inner side of rear plate portion of bottom framework 43 and the side plate of both lateral sides
44.Also, inturned flange 441 is formed with the lower end of thermal insulation board 44, inturned flange 441 is curved convex with bottom framework 43
In the state of edge 431 is overlapped, inturned flange 431 is anchored on into flange part 21 together with inturned flange 441.
In addition, the front panel portion in bottom framework 43 is provided with the peep hole 45 of embedded glass, and it is equipped with as temperature
The thermocouple 5 of sensor, ignitor 6 and flame rod 7.As shown in Fig. 2 ~ Fig. 4, thermocouple 5 is with the face of being located at #2 distributing chamber
Mode in the flame forming region 31 of the #2 burner plates 3 on 22, projects relative to the outer rim of burner plate 3 externally to internal.
Additionally, not being bent to form engaging plate portion in the upper end of the part that erect plate portion 432 consistent with the allocation position of thermocouple 5
433, but be formed with makes the open-work 434 of the break-through of thermocouple 5 as shown in Figure 2.
In addition, using the long side direction of thermocouple 5 as X-direction, using the projected direction of thermocouple 5 as in X-direction
Side, using orthogonal with X-direction and parallel with the plate face of burner plate 3 direction as Y direction, ignitor 6 is configured at thermoelectricity
Even 5 side of Y direction one, flame rod 7 is configured at another side of Y direction of thermocouple 5.Further, with thermocouple 5, point
The part of the consistent inturned flange 431 of the configuration section of thermoelectricity pole 6 and flame rod 7 is equipped with grounding electrode plate 46.In the electrode
The upper-end bent of plate 46 is formed with：With electrode portion 461 from the mode opposed with ignitor 6 to lateral bend in X-direction；And
With electrode portion 462 from the mode opposed with flame rod 7 to lateral bend in X-direction.Also, by ignitor 6 and electrode
Spark discharge between portion 461 and lighted a fire, flow between flame rod 7 and electrode portion 462 and enter based on flame current is whether there is
Row igniting and misfire detection.
However, the temperature of the flame generated by the burning of the pre-mixed gas that the glory hole 3a from burner plate 3 sprays,
Reduce as the excess air ratio of pre-mixed gas increases from 1.Therefore, it is possible to from the output indirect detection air mistake of thermocouple 5
Surplus rate.Therefore, the fuel gas scale of construction of supply to burner 1 is entered with primary air amount at least one party according to the output of thermocouple 5
Row is adjusted, and controls into the setting value that excess air ratio is maintained the regulation more than 1（Such as 1.3）.
Further, it is difficult to consistently be managed the overhang of thermocouple 5.Therefore, because the output of thermocouple 5 is because of thermoelectricity
The skew of even 5 overhang and offset, therefore the accuracy of detection of excess air ratio deteriorates, so as to carry out to excess air ratio
Suitably control.
Therefore, in the present embodiment, in the above-mentioned flame forming region 31 of #2 burner plates 3, throughout include be located at thermoelectricity
The prescribed limit of the part of even 5 underface be provided be formed without glory hole 3a without flame hole part 32.From this without glory hole
End 32a on the inside of the X-direction in portion 32 to the part that X-direction outside extends is formed as Y direction compared with the 32a of end
The elongated shape part 32b of reduced width.In the present embodiment, the diameter of thermocouple 5 is set as into 3.2mm, will be without flame
The Y direction width Wa of the end 32a on the inside of the X-direction of hole portion 32 is set as 12mm, by the thin-and-long without flame hole part 32
The Y direction width Wb of shape part 32b is set as 5.5mm.
Thus, the glory hole 3a adjacent in X-direction of the end 32a on the inside of the X-direction without flame hole part 32 with
The distance between the top of thermocouple 5 L, in the case of increasing because of the reduction of the overhang of thermocouple 5, the top of thermocouple 5
Portion to the glory hole 3a adjacent in Y direction of the elongated shape part 32b without flame hole part 32 is close to.Therefore, though due to
The reduction of the overhang of thermocouple 5, and cause the glory hole adjoined with end 32a on the inside of the X-direction without flame hole part 32
The flame of 3a is reduced to the heating amount of the top ends of thermocouple 5, the fire adjacent with the elongated shape part 32b without flame hole part 32
The flame of flame hole 3a also increases the heating amount of the top ends of thermocouple 5, so as to the output of thermocouple 5 is not reduced.Accordingly, it is capable to
The deterioration of the accuracy of detection for enough preventing from causing excess air ratio because of the skew of the overhang of thermocouple 5.
For clearly this effect, using the burner of present embodiment（Invention product）And will be without flame hole part
Y direction width be set as the comparative product of 12mm in its X-direction length range, carried out following experiment：By fire
The load of flame hole is set to 9W/mm2In the state of change excess air ratio and determine the output of thermocouple 5.The line a1 of Fig. 5 is represented
By the result of the above-mentioned situation for being set as 2mm apart from L in invention product, line a2 is represented and L is set as into 4mm's in invention product
The result of situation, line b1 represents the result of the situation that L is set as 2mm in comparative product, and line b2 is represented in comparative product
L is set as the result of the situation of 4mm.If as shown in figure 5, the overhang of thermocouple 5 is reduced（L increases）, then relative to than
Compared with the situation that the output of thermocouple in product 5 is greatly reduced, the output reduction amplitude of thermocouple 5 diminishes in invention product.Cause
This understands：By the way that above-mentioned effect can be being obtained without the setting elongated shape part 32b of flame hole part 32.
However, if glory hole load increases, flame is easy to rise.If also, with without the adjacent fire of flame hole part 32
Flame hole 3a produces flame and rises, even if then the output of the constant thermocouple 5 of excess air ratio is also reduced, so as to cause excess air ratio
Accuracy of detection deteriorate.
Therefore, in the present embodiment, positioned at the Y direction side of the elongated shape part 32b without flame hole part 32
Second is arranged in square each flame forming region 31 with another side without flame hole part 34, this second without flame hole part 34 be located at
Elongated shape part 32b is adjacent and is formed with the Y-axis of the temperature sensor heating glory hole forming portion 33 of multiple glory hole 3a
Direction outside, and it is formed without glory hole.Thus, the premixed gas for being sprayed with glory hole forming portion 33 from temperature sensor heating
A part for body and spray from the outside glory hole forming portion 35 on the outside of the second Y direction without flame hole part 34
A part for pre-mixed gas is back to second without flame hole part 34 so as to realize keeping the effect of flame.As a result, energy
It is enough to suppress to be risen with the flame that glory hole forming portion 33 is produced in temperature sensor heating, it is prevented from rising what is caused by flame
The deterioration of the accuracy of detection of excess air ratio.
In addition, flame rises generally produced as starting point than the outer end of relatively low flame forming region 31 with temperature, afterwards,
Advance to the inner side of flame forming region 31.If also, producing by starting point of the end on the outside of the X-direction of flame forming region 31
Raw flame is risen to up to temperature sensor heating glory hole forming portion 33, then formed with glory hole in temperature sensor heating
Portion 33 is easy to produce flame rising.
Therefore, in the present embodiment, the end on the outside of the X-direction of flame forming region 31 is provided with holding flame
With glory hole forming portion 36, the holding flame glory hole forming portion 36 is formed with and includes that being formed at temperature sensor heating uses
The glory hole 3a of glory hole forming portion 33 is compared in interior general glory hole 3a, slower many of the spouting velocity of pre-mixed gas
Individual deceleration glory hole 3b.Thus, due to the holding flame interaction of deceleration glory hole 3b, and it is prevented from keeping flame flame
Hole forming portion 36 is that the end on the outside of the X-direction of flame forming region 31 produces flame rising, can be more reliably prevented from
Temperature sensor heating is risen with the flame of glory hole forming portion 33.
Additionally, in present embodiment, although deceleration glory hole 3b is formed as into diameter also less than general glory hole 3a, from
And the spouting velocity of pre-mixed gas is slack-off, but also deceleration glory hole 3b can be formed as diameter with general glory hole 3a
It is identical.That is, if by dividing plate 223 positioned at keep flame with the part of the underface of glory hole forming portion 36 close to burner plate
3 lower surface, and increase the aeration resistance between holding flame glory hole forming portion 36 and dividing plate 223, even if then will subtract
It is identical with general glory hole 3a that fast glory hole 3b is formed as diameter, it is also possible to reduces the premixed gas from deceleration glory hole 3b
The spouting velocity of body and the flame interaction that is maintained.
If in addition, the flame produced in the Y direction outer end of flame forming region 31 rises advancing to the inside of Y direction
And reach second without flame hole part 34, then cannot be reliably prevented the flame in temperature sensor heating glory hole forming portion 33
Rise.
Therefore, in the present embodiment, ignitor 6 is configured to, and in the elongated shape part without flame hole part 32
A part of glory hole 3a's that the outside glory hole forming portion 35 of the flame forming region 31 of the side of Y direction one of 32b is formed
Top is opposed, and flame rod 7 is configured to, and in another side of Y direction of the elongated shape part 32b without flame hole part 32
The top of a part of glory hole 3a that the outside glory hole forming portion 35 of flame forming region 31 is formed is opposed.Thus, from igniting
The pre-mixed gas that the glory hole 3a of the lower section of electrode 6 and flame rod 7 sprays collide ignitor 6 and flame rod 7, so as to anti-
Only the flame in glory hole 3a rises.Therefore, the configuration section in ignitor 6 and flame rod 7 is prevented in flame forming region
The flame that 31 Y direction outer end produces rises to the traveling on the inside of Y direction such that it is able to prevent flame from rising to up to the
Two without flame hole part 34.Therefore, the holding flame interaction phase for producing to the second backflow without flame hole part 34 with pre-mixed gas
With reference to, can be reliably prevented temperature sensor heating glory hole forming portion 33 flame rise.
More than, although embodiments of the present invention are illustrated referring to the drawings, but the present invention is not limited to this,
Various modifications can be implemented without departing from the gist of the present invention.For example, in the above-described embodiment, although utilize a little
The obstacle of the airflow collision that thermoelectricity pole 6 and flame rod 7 spray as the glory hole 3a of the glory hole forming portion 35 from the outside of being formed at
Thing, but sheet side can be also made to utilizing the sheet material to constitute barrier in outside glory hole forming portion 35.However, by originally
The ignitor 6 and flame rod 7 for being attached to burner 1 constitutes the above-mentioned embodiment of barrier and can cut down part number of packages and reality
Ready-made decline, therefore be favourable.
In addition, in the above-described embodiment, although by the use of thermocouple 5 as temperature sensor, will but can also utilize
Thermistor is built in the bar-shaped temperature sensor of top ends.In addition, in the present invention, although in the upper of burner body 2
Surface-mounted have a burner plate 3, but the direction that above-below direction is not regulation when using burner, with the attitude for inverting up and down
Even if the burner that also attitude directed downwardly of burner plate 3 is used also is included in the burner of the present invention.
Claims (5)
1. a kind of burner, it is characterised in that possess：
All primary combustion burner, the upper surface assembling burner plate of the burner body of its box like being up open, from
In the outer edge relative to the burner plate as the fixed part fixed with burner body, flame forming region in the inner part is formed
Multiple glory holes spray the pre-mixed gas of fuel gas and primary air, and make the pre-mixed gas all primary combustion；
And temperature sensor, its by the face of burner plate flame formed overlying regions in the way of relative to burner plate outer rim from outside
Inwardly side projects,
The fuel gas scale of construction and primary air of the burner according to the output of the temperature sensor to supply to burner
At least one party of amount is adjusted,
In the flame forming region of burner plate, the prescribed limit including including the part positioned at the underface of temperature sensor
And arrange be formed without glory hole without flame hole part,
Using the long side direction of temperature sensor as X-direction, using the projected direction of temperature sensor as X-direction inner side,
Using orthogonal with X-direction and parallel with the plate face of burner plate direction as Y direction, from the X-direction without flame hole part
The end of side to the part without flame hole part that X-direction outside extends is formed as elongated shape part, with the X without flame hole part
End on the inside of direction of principal axis is compared, and the Y direction width of the elongated shape part is reduced.
2. burner according to claim 1, it is characterised in that
Area is formed in the side of Y direction one positioned at the elongated shape part without flame hole part with each flame of another side
Arrange second without flame hole part in domain, this second is located at than temperature sensor heating flame in the Y-axis direction without flame hole part
Hole forming portion position in the outer part, and glory hole is formed without, the temperature sensor heating is with glory hole forming portion and without flame
The elongated shape part of hole portion is adjacent, and is formed with multiple glory holes.
3. burner according to claim 2, it is characterised in that
End on the outside of the X-direction of the flame forming region is provided with holding flame glory hole forming portion, the holding
Flame glory hole forming portion is formed with and is included in the glory hole that the temperature sensor heating glory hole forming portion is formed
Compare in interior general glory hole, the slower multiple deceleration glory holes of the spouting velocity of pre-mixed gas.
4. the burner according to Claims 2 or 3, it is characterised in that
The burner possesses barrier, and the barrier is leaned on than described second in the face of being located in the Y-axis direction without flame hole part
The outside glory hole forming portion top of the position in outside, from least the one of the multiple glory holes for being formed at outside glory hole forming portion
The airflow collision barrier that part sprays.
5. burner according to claim 4, it is characterised in that
The burner possesses ignitor, fire of the ignitor in the face of the side of Y direction one without flame hole part
The outside glory hole forming portion top of flame forming region, and the burner possesses flame rod, and the flame rod is faced
The outside glory hole forming portion top of the flame forming region of another side of the Y direction without flame hole part,
The barrier by described in the ignitor and flame bar construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430773.4A CN103791499B (en) | 2012-11-01 | 2012-11-01 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430773.4A CN103791499B (en) | 2012-11-01 | 2012-11-01 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103791499A CN103791499A (en) | 2014-05-14 |
| CN103791499B true CN103791499B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210430773.4A Expired - Fee Related CN103791499B (en) | 2012-11-01 | 2012-11-01 | Combustion device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017180862A (en) * | 2016-03-28 | 2017-10-05 | アズビル株式会社 | Combustion control system |
| JP6853075B2 (en) * | 2017-03-13 | 2021-03-31 | リンナイ株式会社 | All primary combustion burner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8905014U1 (en) * | 1988-04-28 | 1989-06-15 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De | |
| EP0598214B1 (en) * | 1992-11-17 | 1997-05-21 | Oranier Heiz- und Kochtechnik GmbH | Glass ceramic cooking-top for a gas range |
| JP2002250507A (en) * | 2001-02-26 | 2002-09-06 | Sanyo Electric Co Ltd | Burner |
| DE102005056499A1 (en) * | 2005-11-28 | 2007-05-31 | Schott Ag | Gas burner for heating or hot water supply has at least one main load region and at least one monitoring region defined for burner medium and perforated sheet |
| JP2009068788A (en) * | 2007-09-14 | 2009-04-02 | Rinnai Corp | Combustion plate burner |
-
2012
- 2012-11-01 CN CN201210430773.4A patent/CN103791499B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8905014U1 (en) * | 1988-04-28 | 1989-06-15 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De | |
| EP0598214B1 (en) * | 1992-11-17 | 1997-05-21 | Oranier Heiz- und Kochtechnik GmbH | Glass ceramic cooking-top for a gas range |
| JP2002250507A (en) * | 2001-02-26 | 2002-09-06 | Sanyo Electric Co Ltd | Burner |
| DE102005056499A1 (en) * | 2005-11-28 | 2007-05-31 | Schott Ag | Gas burner for heating or hot water supply has at least one main load region and at least one monitoring region defined for burner medium and perforated sheet |
| JP2009068788A (en) * | 2007-09-14 | 2009-04-02 | Rinnai Corp | Combustion plate burner |
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| Publication number | Publication date |
|---|---|
| CN103791499A (en) | 2014-05-14 |
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