CN105937761B

CN105937761B - Flat burner

Info

Publication number: CN105937761B
Application number: CN201610079772.8A
Authority: CN
Inventors: 小野贵大
Original assignee: Rinnai Corp
Current assignee: Rinnai Corp
Priority date: 2015-03-04
Filing date: 2016-02-04
Publication date: 2019-05-10
Anticipated expiration: 2036-02-04
Also published as: TWI588415B; TW201632789A; JP2016161245A; JP6430859B2; CN105937761A

Abstract

The present invention provides a kind of flat burner (5).Upper end have the flame mouth part (53) for spraying gaseous mixture and in the longitudinal direction in longer burner, spark discharge is carried out between the predetermined portion and ignitor (8) of upper end side plate (52a) of side in the transverse direction of burner cap (52), it lights a fire to the gaseous mixture sprayed from flame mouth part, if being constituted the target of electric spark splashing with the protrusion of the upper end of side plate, electric spark is just difficult to be splashed to the front end of protrusion, ignition performance is caused to deteriorate, therefore, this is prevented.The predetermined portion of flat burner of the invention in the side plate (52a) of the lateral side of burner cap (52), it is formed with the lack part (57) of the #1 as target, side plate (52a) in the lateral other side of burner cap (52), by with the lack part of #1 (57) at point symmetry in a manner of be formed with the lack part (57) of #2.

Description

Flat burner

Technical field

The present invention relates to a kind of flame mouth part in upper end with ejection gaseous mixture and longer flat in the longitudinal direction Flat burner.

Background technique

According to this flat burner, directly produced between the upper end and ignitor of the side plate in the outside of flame mouth part Raw electric spark, lights a fire to the gaseous mixture sprayed from flame mouth part.Moreover, the specified part previous, in the upper end of side plate Position is formed with the protrusion for being projected into top of the target of the electric spark as splashing (for example, referring to patent document 1,2).

However, since this protrusion is exposed in flame in burner combustion, sometimes the front end of protrusion burnt burst and It is rounded cunning.Moreover, the front end of protrusion leads to ignition quality once being deformed into this way, be difficult to be splashed to the front end of protrusion once electric spark It can deteriorate.

Citation

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2011-127863 bulletin (Fig. 4)

Patent document 2: Japanese Unexamined Patent Publication 2013-122336 bulletin (Fig. 2, Fig. 6, Fig. 7)

Summary of the invention

The present invention is made in view of problem above, and project is to provide one kind prevents ignition performance from deteriorating as much as possible Flat burner.

In order to solve the above problems, flat burner of the invention is that have the flame mouth part for spraying gaseous mixture in upper end And longer burner in the longitudinal direction, predetermined portion and ignition power in the upper end of the side plate in the outside of flame mouth part Spark discharge is carried out between pole, is lighted a fire to the gaseous mixture sprayed from flame mouth part, which is characterized in that in the upper of side plate The predetermined portion at end is formed with the lack part being recessed downwards.

According to the present invention, the edge part that the beginning at lack part both ends is recessed downwards becomes target, and electric spark splashes so far. Moreover, the edge part is different from being difficult to deform heated as the protrusion front end of previous such target, it can be as far as possible Ground prevents ignition performance from deteriorating.

But, flat burner is standby: with the horizontally burner body of opposed pairs side plate, having from cross To the burner cap of a pair of side plates of two sides covering burner body, the side plate in the outside of flame mouth part by burner cap cross The side plate of upward side is constituted, and in the case where the predetermined portion of the upper end of the side plate is formed with lack part, preferably, is being burnt In the transverse direction of device cap the upper end of the side plate of the other side by with the lack part at point symmetry in a manner of be formed with lack part.Accordingly, Even the direction of burner cap is done instead, to be the side plate that configure in lateral side originally but be configured in laterally another Burner cap is assembled in burner body by the state of side, and configuring the side plate in lateral side (should configure in cross To the side plate of the other side) the lack part of upper end can also be located at: the predetermined portion of target should be become.Therefore, it may not be necessary to be situated between Assemble burner cap with its direction anticipating, so as to improve assemblability.

Detailed description of the invention

Fig. 1 is the perspective view for having the burner of flat burner of embodiment of the present invention.

Fig. 2 is the cross-sectional side elevational view of the burner of Fig. 1.

Fig. 3 is the perspective view of the flat burner of embodiment.

Fig. 4 is the sectional view along the flat burner of the IV-IV line cutting in Fig. 3.

Symbol description:

5 ... flat burners, 51 ... burner bodies, the side plate of 51a ... burner body, 52 ... burner caps, Side plate (side plate), 53 ... flame mouth parts, 57 ... lack parts, 8 ... the ignitors of 52a ... burner cap.

Specific embodiment

Referring to Fig.1, Fig. 2,1 is the burning shell for indicating to constitute the burner by forming for warm water heat source machine.Burning The upper surface of shell 1 is in open shape, is provided on burning shell 1 as heating object and the illustration is omitted for warm water Heat exchanger.It is provided with the space in shell 1 that will burn in burning shell 1 and is isolated into combustion chamber 2 and the air supply chamber on the downside of it 3 isolation board 4.In combustion chamber 2 in a manner of horizontally there is gap be arranged side by side have it is longer on multiple front-rear directions Flat burner 5.

It is connected with the combustion blower outside figure in the bottom surface of air supply chamber 3, air is supplied to gas supply from combustion blower Room 3.Multiple distribution holes 41 are formed in isolation board 4, are supplied to the air of air supply chamber 3 via these distribution holes 41 and as secondary Air is supplied to combustion chamber 2 again.

The standing board portion 42 of top is bent to and from standing board portion 42 in addition, being provided in the front end of isolation board 4 Upper-end bent to front and reach burning 1 front surface of shell exterior panel 11 upper plate portion 43.Moreover, in the front end of air supply chamber 3 Portion is provided with the primary air room 31 to be formed out in the front side in standing board portion 42 and in a manner of reaching upper plate portion 43.? Standing board portion 42 is formed with: the inflow entrance 54a phase with the upstream end for the mixing pipe portion 54 of each flat burner 5 illustrated below Pair it is each opening 44.In addition, the front surface of primary air room 31 is blocked by fuel manifold 6.Fuel manifold 6 be provided with respectively Be open 44 opposite each nozzles 61.In each opening 44 that is, in the mixing pipe portion 54 of each flat burner 5, there is combustion gas by from each The supply of nozzle 61 comes and one more air is supplied from primary air room 31.In addition, the front surface in burning shell 1 is matched It is equipped with: flame detector 7 and ignitor 8.

Referring to Fig. 3, Fig. 4, flat burner 5 has: having the burning of horizontally opposed pairs side plate 51a, 51a Device main body 51 and on the outside of both lateral sides come cover burner body 51 a pair of side plates 52a, 52a burner Cap 52.In addition, flat burner 5 has the flame mouth part 53 for spraying gaseous mixture in upper end.It is provided in the flame mouth part 53 With front-rear direction, there are intervals on the upper plate 51b for connecting the upper end of both side plate 51a, 51a of burner body 51 Mode and multiple main flame hole 53a for the being formed and each side plate 51a for being formed in burner body 51 and burner cap 52 it is each Fiery flame hole 53b is helped between side plate 52a.

In addition, being provided with the mixing pipe portion for extending to the lower part at rear from the inflow entrance 54a of front end in burner body 51 54, extend and extend to the main mixture access 55 of top in the longitudinal direction from the rear end of mixing pipe portion 54.Moreover, The combustion gas and the mixed gaseous mixture of primary air that come are flowed into from inflow entrance 54a via mixing pipe portion 54 and main mixture access 55 And it is directed to main flame hole 53a.In addition, both side plate 51a, 51a and upper plate 51b of burner body 51 are by by a plate Bending and formed.

It is provided with to be connected between each side plate 51a of burner body 51 and each side plate 52a of burner cap 52 and helps fire Flame hole 53b's helps fiery gaseous mixture access 56.In addition, in each side plate 51a of burner body 51, between front-rear direction exists Every mode formed out it is multiple by main mixture access 55 and the venthole 56a that helps fiery gaseous mixture access 56 to be connected to, and It is located above for the part that lower part of the venthole 56a compared to each side plate 51a and each side plate 52a of burner cap 52 coincides Position.Moreover, the gaseous mixture being split from main mixture access 55 via these ventholes 56a is via helping fiery gaseous mixture logical Road 56 and be supplied in and help fiery flame hole 53b, by being formed in the fire that helps helped on fiery flame hole 53b, come to being formed in main flame Main flame on mouth 53a carries out flame and helps flame.In addition, burner cap 52 include the upper end of both side plate 52a, 52a is more in front and back The bridge portion 52b that a position connects.

But, in igniting, the flat burner 5 being configured at immediately below ignitor 8 flame mouth part 53 it is outer In the side plate that is, Fig. 3 of burner cap 52 of side left side side plate 52a upper end front predetermined portion and ignitor 8 it Between carry out spark discharge, light a fire to the gaseous mixture sprayed from flame mouth part 53.Moreover, reliably to light a fire, though So target that the front predetermined portion setting electric spark preferably in the upper end of the side plate 52a in left side splashes, still, by protruding In the structure for constituting target to the protrusion of top, it can lead to the problem of following.That is, protrusion is exposed to fire in burner combustion In flame, the front end of protrusion, which is burnt, sometimes bursts and is rounded cunning.Moreover, the front end of protrusion is once being deformed into this way, being difficult to once electric spark It is splashed to the front end of protrusion, ignition performance is caused to deteriorate.

Therefore, in the present embodiment, the left side of burner cap 52 side plate 52a upper end front predetermined portion, It is formed with the lack part 57 of the #1 for the semicircle shape being recessed downwards, moreover, the rib that the beginning at 57 both ends of lack part is recessed downwards The edge part 57a of angular shape becomes target.Here, edge part 57a is different from the front end of above-mentioned protrusion, it is difficult to become having hot Shape can prevent ignition performance from deteriorating as much as possible.

In addition, in the present embodiment, in the upper rear of the side plate 52a on the right side of burner cap 52, with above-mentioned #1 Lack part 57 lack part 57 of #2 is formed at the mode of point symmetry.Accordingly, even the direction of burner cap 52 is done anti- , be originally configure the side plate 52a in left side be configured in right side state burner cap 52 is assembled in burning When device main body 51, the lack part 57 of the #2 of the upper end for side plate (side plate on right side should the be configured) 52a configured in left side Also it can be located at: the predetermined portion of target should be become.Therefore, it may not be necessary to assemble burner cap 52 with minding its direction, thus Assemblability can be improved.

In addition, in the present embodiment, since there is also configure ignitor 8 in the position of keeping right of flat burner 5 Therefore the machine set is formed with the lack part 57 of #3 in the upper-end front of the side plate 52a on the right side of burner cap 52, while The upper rear of the side plate 52a in the left side of burner cap 52 by with the lack part 57 of #3 at point symmetry in a manner of and be formed with #4's Lack part 57.In addition, the lack part 57 of above-mentioned #1~#4 is formed on all flat burners 5, so as to regardless of which kind of is flat Flat burner 5 can be configured in the underface of ignitor 8.

More than, referring to attached drawing, embodiments of the present invention are illustrated, but the present invention is not merely defined in This.For example, it is also possible to which flat burner 5 is made into the burner without burner cap 52.In this case, in flame hole The upper end predetermined portion of the side plate of the side plate that is, burner body in the outside in portion forms lack part.In addition, in above-mentioned reality It applies in mode, although lack part 57 is formed as semicircle shape, about the shape of lack part 57, as long as at least one end has There is the edge part of corner angle, then the shape being also possible to other than the semicircle shapes such as V shape.But, it is contemplated that for lack part 57 The durability of the formed punch of Blanking Shaping is carried out, the shape of lack part 57 is preferably that formed punch will not be allowed to have the portion for being easy to produce shortcoming The semicircle shape divided.

Claims

1. a kind of flat burner is in upper end with the flame mouth part for spraying gaseous mixture and longer in the longitudinal direction Burner, between the predetermined portion and ignitor of the upper end along side plate in the front-back direction in the outside of flame mouth part into Row spark discharge lights a fire to the gaseous mixture sprayed from flame mouth part, which is characterized in that

The predetermined portion in the upper end of side plate is formed with the lack part being recessed downwards.

2. flat burner according to claim 1, which is characterized in that the flat burner is standby: having The burner body of opposed pairs side plate, the burning with a pair of side plates from both lateral sides covering burner body in transverse direction The side plate of device cap, the outside of the flame mouth part is made of the side plate of side in the transverse direction of burner cap, in the upper of the side plate The predetermined portion at end is formed with the lack part, the upper end of the side plate of the other side in the transverse direction of burner cap, to owe with described The portion of lacking is formed with lack part at the mode of point symmetry.