CN105090956A - Flat combustor - Google Patents
Flat combustor Download PDFInfo
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- CN105090956A CN105090956A CN201410222703.9A CN201410222703A CN105090956A CN 105090956 A CN105090956 A CN 105090956A CN 201410222703 A CN201410222703 A CN 201410222703A CN 105090956 A CN105090956 A CN 105090956A
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- flame
- abutting part
- flame mouth
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- fore
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Abstract
The invention relates to a flat combustor. A thin and long flame opening is formed in the upper end of the flat combustor, and a gas deflection part (68) is mounted in the flame opening and provided with a plurality of gas deflectors arranged side by side in the transverse direction. Abutting portions are arranged on multiple portions of the front side and the rear side of the gas deflection part. The abutting portions enable the gas deflectors to abut against one another, so that flame opening flow paths formed between the gas deflectors are separated in the front-back direction. Even if the flow-in direction of mixed gas flowing towards the flame opening flow path, close to the transverse center, of the flame opening substantially inclines in the front-back direction, a flame formed on the flame opening flow path can be prevented from inclining substantially in the front-back direction. The shape of a part formed by at least the lower half portions of the abutting portions (68c) between the transverse inner side gas deflectors (68in) forming the flame opening flow path close to the transverse center of the flame opening is an inverted triangle when the part is observed in the transverse direction.
Description
Technical field
The present invention relates to the flat burner used in the burners such as hot water heat source machine is provided.
Background technology
Generally speaking, providing in hot water heat source machine, forcibly providing in the burning housing of combustion air with combustion blower, being set side by side with multiple flat burner in upper end with the flame mouth part of elongated shape.
In the past, this flat burner, if when the length direction of flame mouth part is fore-and-aft direction, the width of flame mouth part is horizontal, the burner body be made up of pair of side plates relative is in the horizontal formed the mixing tube portion of bottom and the gaseous mixture from mixing tube portion is directed to the portion of distributing chamber of flame mouth part, the rectification part (for example, referring to patent document 1) with the multiple cowling panels be set up in parallel in the horizontal is installed in flame mouth part.And in front and back, multiple position has abutting part to rectification part, and this abutting part makes cowling panel against each other and disconnected in the longitudinal direction by the flame hole stream formed between each cowling panel.
But, due to the miniaturization of heat source machine, sometimes require the above-below direction size in the portion of distributing chamber of shortening flat burner.But if shorten the above-below direction size in portion of distributing chamber, then at front portion or the rear portion of flat burner, the inflow direction that gaseous mixture flows into from portion of distributing chamber to flame mouth part tilts in front-rear direction significantly relative to above-below direction.So in the flame hole stream of the close lateral center of flame mouth part, the flow velocity of gaseous mixture accelerates, the flame that this flame hole stream is formed becomes large.In addition, if the anterior or rear portion at burner, the inflow direction that gaseous mixture flows into the flame hole stream by lateral center tilts in front-rear direction significantly, the large flame then formed on this flame hole stream tilts in front-rear direction, front surface or the rear surface of burning housing can be heated strongly, and produce the heat waste of burning housing.
At first technical literature
Patent document
Patent document 1 Japanese Unexamined Patent Publication 7-91620 publication
Summary of the invention
The present invention proposes in view of the above problems, its object is to provide a kind of flat burner, even if the inflow direction that gaseous mixture flows into the flame hole stream of the close lateral center of flame mouth part tilts in front-rear direction significantly, also can prevent the flame formed on this flame hole stream from tilting significantly in front-rear direction.
In order to solve the problem, flat burner of the present invention has the flame mouth part of elongated shape in upper end, if the length direction of flame mouth part is fore-and-aft direction, the width of flame mouth part is laterally, the burner body be made up of transversely relative pair of side plates is formed the mixing tube portion of bottom, and the gaseous mixture from mixing tube portion is directed to the portion of distributing chamber of flame mouth part, the rectification part with the multiple cowling panels be set up in parallel in the horizontal is installed in flame mouth part, in front and back, multiple position has abutting part to rectification part, this abutting part is utilized to make cowling panel against each other and disconnected in the longitudinal direction by the flame hole stream formed between each cowling panel, the feature of described flat burner is, the at least Lower Half of abutting part is formed as: shape when observing from transverse direction is del, at this, this abutting part refers to: formed flame mouth part close lateral center flame hole stream laterally inside their abutting parts to each other of cowling panel among, it is at least the abutting part of the fore-and-aft direction part being present in regulation, the fore-and-aft direction part of regulation refers to: the part of the inflow direction that gaseous mixture flows into from portion of distributing chamber to flame mouth part for above-below direction in front-rear direction more than inclination predetermined angular.
According to the present invention, when flowing into the state tilted significantly in front-rear direction at gaseous mixture in the flame hole stream of the close lateral center of flame mouth part, the gaseous mixture occurring to collide with the del part of abutting part rebounds in the mode on the fore-and-aft direction contrary with inflow direction with larger velocity component.Then, under the impact of this air-flow rebounded, even if having left the flame hole circuit portion of abutting part, the air-flow of gaseous mixture also upward.Thus, even if the inflow direction that gaseous mixture flows into the flame hole stream of the close lateral center of flame mouth part tilts in front-rear direction significantly, also can prevent the flame that this flame hole stream is formed from tilting significantly in front-rear direction.
And in the present invention, the disposition interval of preferred abutting part presents reduction in the fore-and-aft direction part of described regulation.Thus, can make to tilt in front-rear direction and the air-flow flowing into the gaseous mixture in flame hole stream more effectively upward.
And in the present invention, preferably have secondary abutting part, this secondary abutting part makes the cowling panel of laterally inner side abut against in the middle lower portion of the disposition interval of abutting part each other.Further, the secondary abutting part of the fore-and-aft direction part being present in described regulation among secondary abutting part is preferably made to tilt to the fore-and-aft direction contrary with the inflow direction of gaseous mixture for above-below direction.Accordingly, can make to tilt in front-rear direction and the air-flow flowing into the gaseous mixture in flame hole stream more reliably upward.
Accompanying drawing explanation
Fig. 1 is the cutting side view of the burner of the flat burner possessing embodiments of the present invention.
Fig. 2 is the stereogram of the flat burner of embodiment.
Fig. 3 is the stereogram of the decomposing state of the flat burner of embodiment.
Fig. 4 is the sectional view carrying out the flat burner of cutting along IV-IV line of Fig. 2.
Fig. 5 is the cutting side view carrying out the flat burner of cutting along V-V line of Fig. 4.
Fig. 6 is the key diagram that effect of the present invention is described.
Fig. 7 is the cutting side view of the flat burner of 2nd embodiment corresponding with Fig. 5.
Fig. 8 is the cutting side view of the flat burner of 3rd embodiment corresponding with Fig. 5.
Symbol description
6 ... flat burner, 61 ... burner body, 61a ... side plate, 63 ... flame mouth part, 65 ... mixing tube portion, 66 ... portion of distributing chamber, 68 ... rectification part, 68in ... interior side fairing, 68c ... abutting part, 68d ... secondary abutting part
Detailed description of the invention
With reference to Fig. 1,1 represents the burning housing forming and provide the burners such as hot water heat source machine.The upper surface of burning housing 1 is open, arranges heating objects such as omitting illustrated heat exchanger on burning housing 1.In burning housing 1, be provided with the demarcation strip 4 space in burning housing 1 being separated into the air supply chamber 3 of combustion chamber 2 and downside thereof.Combustion blower outside figure is connected to the bottom surface of air supply chamber 3 via pipeline 5, provides air from combustion blower to air supply chamber 3.On demarcation strip 4, be formed with multiple distribution hole 4a, the air being supplied to air supply chamber 3 is supplied to combustion chamber 2 via these distribution holes 4a as auxiliary air.
In combustion chamber 2, the flat burner 6 of embodiments of the present invention is set up in parallel multiple.And, be bent to form rise part 41 in the leading edge of demarcation strip 4, and in the mode of the bottom front surface of clogging burning housing 1, menifold 7 be installed in the front side of rise part 41.On menifold 7, be provided with the gas nozzle 71,72 facing with inflow entrance 65a, the 67a in the mixing tube portion described later 65,67 of each flat burner 6.In addition, provide combustion gas from each gas nozzle 71,72 to each inflow entrance 65a, 67a, and provide primary air via the space formed between rise part 41 and menifold 7 to each inflow entrance 65a, 67a from air supply chamber 3.
Flat burner 6 as shown in Figure 2 and Figure 3, possesses the burner cap 62 on the top of burner body 61 and covering burner body 61.On the top of burner body 61, form the flame mouth part 63 of the elongated shape of upper opening.And be formed with flank fire flame mouth part 64 by burner cap 62, flank fire flame mouth part 64 is positioned at the both sides of flame mouth part 63.In addition, the light gaseous mixture making fuel concentration thinner than chemically correct fuel sprays from flame mouth part 63, and make fuel concentration than richer rich mixture from the side fiery flame mouth part 64 spray, carry out so-called bias combustion.
Below, if the length direction of flame mouth part 63 be fore-and-aft direction, flame mouth part 63 width for laterally, the formation of flat burner 6 is described in detail.Burner body 61 as shown in Figure 4, is made up of pair of side plates 61a relative in the horizontal, 61a.And biside plate 61a, 61a are formed by one block of plate is bent into along the folding line of the lower edge becoming burner body 61 state of putting the palms together before one.In addition, by carrying out punch process to each side plate 61a, forming the flame mouth part 63 of upper end, the mixing tube portion 65 of bottom at burner body 61 and the gaseous mixture from mixing tube portion 65 being directed to the portion of distributing chamber 66 of flame mouth part 63.
Mixing tube portion 65 rearward extends from the inflow entrance 65a of the lower front being positioned at burner body 61, and end is bending upward is thereafter communicated with portion of distributing chamber 66.And, in the front portion of burner body 61, be formed with the mixing tube portion 67 of flank fire in the position between mixing tube portion 65 and portion of distributing chamber 66.This mixing tube portion 67 rearward extends a little from the inflow entrance 67a of the leading edge being positioned at burner body 61 and stops, and is provided with passage 67b at this rearward end side opening.
Burner cap 62 has the pair of side plates 61a of burner body 61, the pair of side plates 62a of the outer side covers of 61a, 62a, and by biside plate 62a, 62a bridge portion 62b at multiple position, front and back of linking up of edge thereon.In addition, between the side plate 61a and the side plate 62a of burner cap 62 of burner body 61, be formed with the flank fire flame mouth part 64 of upper end and fire mixing tube portion 67 be from the side directed to the path of flank fire flame mouth part 64 via the gaseous mixture that passage 67b flows out to the outside of burner body 61.And be formed with recess 62c at multiple position, front and back of the side plate 62a of burner cap 62, this recess 62c abuts with the lateral surface of the side plate 61a of burner body 61, is disconnected in the longitudinal direction by flank fire flame mouth part 64.
And be installed with rectification part 68 in flame mouth part 63, this rectification part 68 has the multiple cowling panels be set up in parallel in the horizontal.In the present embodiment, by laterally 2 pieces of cowling panels 68in, 68in of inner side and 2 pieces of cowling panels 68out, 68out of lateral outer side form rectification part 68.At the flame mouth part 63 of burner body 61, be formed with in the mode being located thereon lower direction pars intermedia the narrow 63a clipping rectification part 68 from both lateral sides.Thus, the blind space 63b not spraying gaseous mixture is formed between a part of the side plate 61a in the upside of narrow 63a and outer side fairing 68out.
Rectification part 68 has upper and lower a pair abutting part 68a at multiple position, front and back that the bridge portion 62b with burner cap 62 matches, 68b and abutting part 68c (with reference to Fig. 5), this upper and lower a pair abutting part 68a, 68b makes the cowling panel 68in of inner side and outer side, 68out is against each other, will at two cowling panel 68in, the flame hole stream formed between 68out disconnects in the longitudinal direction, this abutting part 68c makes side fairing 68in in 2 pieces, 68in is against each other, will at interior side fairing 68in, the flame hole stream by lateral center of the flame mouth part 63 formed between 68in disconnects in the longitudinal direction, rectification part 68 also has secondary abutting part 68d, this secondary abutting part 68d makes this interior side fairing 68in, 68in abuts against in the middle lower portion of the disposition interval of abutting part 68c each other.And interior side fairing 68in, 68in are linked by the linking part 68e of rear and front end, the linking part 68f that cowling panel 68in, 68out of inner side and outer side are arranged by position multiple in the front and back of its lower edge is linked.
On the top in portion of distributing chamber 66, the restriction 66a be formed width constriction.The width of restriction 66a forwards expands gradually from the inflow position of the gaseous mixture from mixing tube portion 65 that is the rear portion in portion of distributing chamber 66.Thus, the fore-and-aft direction flow distribution flowing into the gaseous mixture of flame mouth part 63 is homogenized.
But, if shorten the above-below direction size in portion of distributing chamber 66, the then part shown in A in Fig. 5 of burner front portion, the inflow direction that gaseous mixture flows into from portion of distributing chamber 66 to flame mouth part 63 forwards tilts predetermined angular (such as relative to above-below direction, 10 ~ 15 °) more than, and, the part shown in B in the Fig. 5 at burner rear portion, the inflow direction that gaseous mixture flows into from portion of distributing chamber 66 to flame mouth part 63 is relative to above-below direction more than tilted rearward predetermined angular (such as, 5 ~ 10 °).At this, in the flame hole stream of the close lateral center of flame mouth part 63, the flow velocity of gaseous mixture is fast, and the flame that this flame hole stream is formed becomes large.In addition, if the anterior or rear portion at burner, the inflow direction that gaseous mixture flows into the flame hole stream near lateral center tilts in the longitudinal direction significantly, the large flame then formed on this flame hole stream will tilt in front-rear direction, front surface or the rear surface of burning housing 1 are heated strongly, and the heat waste of burning housing 1 occurs.
So in the present embodiment, by the Lower Half of interior side fairing 68in, 68in abutting part 68c each other, as shown in Figure 5, the shape be formed as when observing from transverse direction is del.Accordingly, when gaseous mixture flow into the state tilted significantly in front-rear direction in the flame hole stream of the close lateral center of flame mouth part 63, as shown in Figure 6, there occurs the gaseous mixture of collision in the del part of the Lower Half of abutting part 68c, rebound in the mode on the fore-and-aft direction contrary with inflow direction with larger velocity component.Then, under the impact of this air-flow rebounded, even if having left the flame hole circuit portion of abutting part 68c, the air-flow of gaseous mixture also upward.Therefore, in the part shown in A, B of burner front and rear, even if the inflow direction that gaseous mixture flows into the flame hole stream of the close lateral center of flame mouth part 63 tilts in front-rear direction significantly, also can prevent the flame formed on this flame hole stream from tilting significantly in front-rear direction, and the heat waste of burning housing 1 can not occur.
And, in the above-described embodiment, although interior side fairing 68in, 68in whole abutting part 68c to be each other formed as the abutting part of the Lower Half with del, but the inflow direction that also can only be flowed into from portion of distributing chamber 66 to flame mouth part 63 by part, the i.e. gaseous mixture shown in A, B of being present in burner front and rear, relative to the abutting part 68c part more than above-below direction in front-rear direction inclination predetermined angular, is formed as the abutting part of the Lower Half with del.And, also not only upper and lower entirety also all can be formed as del by the Lower Half of these abutting parts 68c.Moreover although can omit secondary abutting part 68d, if arrange secondary abutting part 68d, then the air-flow that can make gaseous mixture more effectively upward, is favourable.
And, also can the 2nd embodiment as shown in Figure 7 such, make the part of the disposition interval of abutting part 68c shown in A, B of burner front and rear present reduction.Accordingly, the part shown in A, B the air-flow of gaseous mixture can be made more reliably upward.
And, also can the 3rd embodiment as shown in Figure 8 such, the secondary abutting part 68d being present in the part shown in A, B is tilted to the fore-and-aft direction contrary with the inflow direction of gaseous mixture for above-below direction.Namely the secondary abutting part 68d in the part shown in A, the inflow direction being present in gaseous mixture forwards being tilted for above-below direction, the tilted rearward relative to above-below direction, make the secondary abutting part 68d in the part shown in B of the inflow direction tilted rearward for above-below direction being present in gaseous mixture, forwards tilt for above-below direction.In this case, also the part shown in A, B the air-flow of gaseous mixture can be made more reliably upward.
Above, with reference to accompanying drawing, embodiments of the present invention are illustrated, but the present invention is not limited thereto.Such as, in the above-described embodiment, although at least Lower Half of interior side fairing 68in, 68in abutting part 68c is each other formed as del, but also not only by interior side fairing 68in, 68in abutting part 68c each other, also at least Lower Half of cowling panel 68in, 68out of inner side and outer side abutting part 68a each other can be formed as del.
And, although the rectification part 68 of above-mentioned embodiment is 4 plate tectonics, also can be 5 plate tectonics between side fairing in 2 pieces with central cowling panel.In this case, between central cowling panel and Ge Nei side fairing, form the flame hole stream of the close lateral center of flame mouth part, so at least Lower Half of the abutting part of central cowling panel and Ge Nei side fairing is formed as del.
And, although the flat burner of above-mentioned embodiment is the bias combustion formula burner possessing burner cap 62, also the present invention can be applied to equally the flat burner of the non-bias combustion formula eliminating burner cap.
Claims (4)
1. a flat burner, there is in upper end the flame mouth part of elongated shape, if the length direction of flame mouth part is fore-and-aft direction, the width of flame mouth part is laterally, the burner body be made up of transversely relative pair of side plates is formed the mixing tube portion of bottom, and the gaseous mixture from mixing tube portion is directed to the portion of distributing chamber of flame mouth part, the rectification part with the multiple cowling panels be set up in parallel in the horizontal is installed in flame mouth part, in front and back, multiple position has abutting part to rectification part, this abutting part is utilized to make cowling panel against each other and disconnected in the longitudinal direction by the flame hole stream formed between each cowling panel,
The feature of described flat burner is:
At least Lower Half of abutting part is formed as: shape when observing from transverse direction is del, at this, this abutting part refers to: formed flame mouth part close lateral center flame hole stream transverse direction among their abutting parts to each other of side fairing, be at least the abutting part of the fore-and-aft direction part being present in regulation, the fore-and-aft direction part of regulation refers to: the part of the inflow direction that gaseous mixture flows into from portion of distributing chamber to flame mouth part for above-below direction in front-rear direction more than inclination predetermined angular.
2. flat burner as claimed in claim 1, is characterized in that,
The disposition interval of described abutting part presents reduction in the fore-and-aft direction part of described regulation.
3. flat burner as claimed in claim 1 or 2, is characterized in that,
Have secondary abutting part, this secondary abutting part makes the cowling panel of described laterally inner side abut against in the middle lower portion of the disposition interval of described abutting part each other.
4. flat burner as claimed in claim 3, is characterized in that,
Be present in the secondary abutting part of the fore-and-aft direction part of described regulation among described secondary abutting part, tilt to the fore-and-aft direction contrary with the inflow direction of gaseous mixture for above-below direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222703.9A CN105090956B (en) | 2014-05-23 | 2014-05-23 | Flat burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222703.9A CN105090956B (en) | 2014-05-23 | 2014-05-23 | Flat burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090956A true CN105090956A (en) | 2015-11-25 |
| CN105090956B CN105090956B (en) | 2018-10-02 |
Family
ID=54571958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410222703.9A Active CN105090956B (en) | 2014-05-23 | 2014-05-23 | Flat burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090956B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881364Y (en) * | 2005-11-17 | 2007-03-21 | 徐宁 | Plywood composite burner for gas water heater |
| KR20090126669A (en) * | 2008-06-05 | 2009-12-09 | 주식회사 경동나비엔 | Premixed burner having fuel nozzle for improving mixing properties of air and fuel |
| CN201373411Y (en) * | 2009-03-17 | 2009-12-30 | 上海禾森机电有限公司 | Fire grate used for low discharge combustor of water heater with V-shape fire hole |
| JP2011145027A (en) * | 2010-01-15 | 2011-07-28 | Paloma Co Ltd | Gas burner unit and combustion apparatus |
| CN201964410U (en) * | 2010-12-30 | 2011-09-07 | 上海禾森机电有限公司 | Burner used in H-shaped gas heating water heater |
-
2014
- 2014-05-23 CN CN201410222703.9A patent/CN105090956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881364Y (en) * | 2005-11-17 | 2007-03-21 | 徐宁 | Plywood composite burner for gas water heater |
| KR20090126669A (en) * | 2008-06-05 | 2009-12-09 | 주식회사 경동나비엔 | Premixed burner having fuel nozzle for improving mixing properties of air and fuel |
| CN201373411Y (en) * | 2009-03-17 | 2009-12-30 | 上海禾森机电有限公司 | Fire grate used for low discharge combustor of water heater with V-shape fire hole |
| JP2011145027A (en) * | 2010-01-15 | 2011-07-28 | Paloma Co Ltd | Gas burner unit and combustion apparatus |
| CN201964410U (en) * | 2010-12-30 | 2011-09-07 | 上海禾森机电有限公司 | Burner used in H-shaped gas heating water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105090956B (en) | 2018-10-02 |
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