CN105737151B

CN105737151B - Burner

Info

Publication number: CN105737151B
Application number: CN201510920609.5A
Authority: CN
Inventors: 小野贵大
Original assignee: Rinnai Corp
Current assignee: Rinnai Corp
Priority date: 2014-12-26
Filing date: 2015-12-11
Publication date: 2019-04-12
Anticipated expiration: 2035-12-11
Also published as: JP6534811B2; CN105737151A; BR102015031378A2; BR102015031378B1; TW201623878A; JP2016125681A; TWI563222B

Abstract

The present invention provides a kind of burner, in the burner, upper end is set side by side in a manner of laterally having and arranging with gap in combustion chamber (2) multiple with the flame hole for spraying gaseous mixture and using front-rear direction as the burner (5) of length direction, it is configured with to prolong in gap between each burner and burns plate (18), prolong burning plate (18) to be located near the upper end of the front-rear direction part Chong Die with an end in the front-back direction for the flame hole forming region of each burner, hinder the rising of auxiliary air, it can prevent the combustible deterioration caused by the vortex for prolonging the auxiliary air generated near another end in the front-back direction for burning plate.It is formed with curved bending part (18a) downwards prolonging another end in the front-back direction for burning plate (18), so that the generation position of vortex deviates downwards, vortex is difficult to reach the upper end of burner (5).

Description

Burner

Technical field

The present invention relates to a kind of burner, which has burning cover, be arranged in burning cover combuster and Air supply chamber on the downside of combustion chamber has the flame hole for spraying gaseous mixture in upper end and using front-rear direction as the burner of length direction By laterally multiple with being set side by side in the combustion chamber in a manner of arranging with gap, auxiliary air rises from air supply chamber and is supplied to Combustion chamber.

Background technique

Up to the present, it is known that in this burner, configured with burning plate is prolonged in the gap between each burner, this prolongs It burns plate and is located at the upper of the front-rear direction part Chong Die with an end of the rear ends of the flame hole forming region of each burner Near end, hinder the rising of auxiliary air (referring for example to patent document 1).According to the burner, auxiliary air is difficult in flow to Prolong the surface part for burning plate, therefore when prolonging burning, is sprayed from the flame hole across an adjacent burner of gap mixed A part of a part and the gaseous mixture sprayed from the flame hole of another burner for closing gas, which is stranded in, prolongs the surface for burning plate Part promotes fire to prolong burning from a burner to another burner.

But prolong burn plate in the front-back direction another end (when prolong burn plate be configured at flame hole forming region after End overlapping front-rear direction part when, for prolong burn plate front end, when prolong burn plate be configured at before flame hole forming region When the front-rear direction part of end overlapping, to prolong the rear end for burning plate) near, the air-flow of auxiliary air upward will generate Vortex.Later, it if the vortex reaches the upper end of burner, is influenced by vortex, evil can be brought to the flammability of burner Bad influence did not still in the past take some countermeasures to this.

Citation

Patent document

Patent document 1: Japanese Unexamined Patent Publication 5-280715 bulletin

Summary of the invention

The present invention be exactly Given this and make, and it is an object of the present invention to provide a kind of burner, the burner can prevent Flammability is caused to deteriorate in the vortex for prolonging the auxiliary air generated near the end for burning plate.

To solve the above-mentioned problems, burner of the invention have burning cover, in burning cover be arranged combuster and Air supply chamber on the downside of combustion chamber, upper end have the flame hole for spraying gaseous mixture and exist by the burner of length direction of front-rear direction By laterally multiple with being set side by side in a manner of arranging with gap in combustion chamber, auxiliary air rises from air supply chamber and is supplied to Combustion chamber, configured with prolonging burning plate in the gap between each burner, this, which prolongs, burns that plate is located at and the flame hole of each burner forms area Near the upper end of the front-rear direction part of the end overlapping of the rear ends in domain, the rising of auxiliary air, feature are hindered It is: is formed with curved bending part downwards prolonging another end for burning the rear ends of plate.

According to the present invention, the air-flow of auxiliary air upward generates vortex in the lower end of bending part.Therefore, it revolves To lower section, vortex is difficult to reach the upper end of burner the generation positional shift in whirlpool, and the flammability of burner can be prevented by vortex Influence and deteriorate.

Burner has burner pressing plate, which abuts with an ora terminalis of the front and back ora terminalis of burner, Or there is thermal insulation board, the thermal insulation board part against the top to the ratio burner of an exterior panel of the front and back exterior panel of burning cover Inner surface by with its with gap in a manner of covered.Upper limb in such burner, preferably in burner pressing plate Or the lower edge of thermal insulation board is integrally formed and prolongs burning plate.Cost is reduced thereby, it is possible to cut down number of components.

Detailed description of the invention

Fig. 1 is the perspective view of the burner of first embodiment of the present invention.

Fig. 2 is the side sectional view of the burner of the 1st embodiment.

Fig. 3 is the mian part enlarged section decided what is right and what is wrong along the III-III line of Fig. 2.

Fig. 4 is the perspective view for being set to the burner of burner of the 1st embodiment.

Fig. 5 is the sectional view for the burner decided what is right and what is wrong along the V-V line of Fig. 4.

Fig. 6 is the perspective view for being set to the burner pressing plate of burner of the 1st embodiment.

Fig. 7 is the side sectional view of the burner of the 2nd embodiment.

Fig. 8 is the perspective view for being set to the thermal insulation board of burner of the 2nd embodiment.

Symbol description

1 ... burning cover, the exterior panel of 12 ... rear surfaces, the thermal insulation board of the exterior panel of 15 ... covering rear surfaces, 17 ... burnings Device pressing plate, 18 ..., which are prolonged, burns plate, 18a ... bending part, 2 ... combustion chambers, 3 ... air supply chambers, 5 ... burners, 53 ... flame holes.

Specific embodiment

Referring to Fig.1, Fig. 2,1 indicates to constitute the burning cover for the burner being made of supply hot water with heat source machine.Burning cover 1 Upper surface be it is open, setting the supply hot-water converter that the illustration is omitted is on burning cover 1 as being heated Object.The air supply chamber 3 of 2 downside of combuster 2 and combustion chamber is set in burning cover 1.Air supply chamber 3 and combustion chamber 2 pass through isolation board 4 Keep apart.It is set side by side in the way of laterally having and arranging with gap in combustion chamber 2 multiple using front-rear direction as length side To burner 5.

The bottom surface of air supply chamber 3 is connected with the combustion blower outside figure, supplies air from combustion blower to air supply chamber 3.Every From being formed with multiple distribution holes 41 on plate 4.Moreover, the air for being supplied to air supply chamber 3 rises to burning via these distribution holes 41 Room 2 and by as secondary air supply to combustion chamber 2.

In addition, the front end of isolation board 4 be provided with upwards curved standing board portion 42, from the upper end in standing board portion 42 The upper plate portion 43 of the exterior panel 11 of the front surface of burning cover 1 is bent and reached forwards.Moreover, being set in the front end of air supply chamber 3 It is equipped with to erect the primary air room 31 to be formed in such a way that the front side in standing board portion 42 reaches upper plate portion 43.In standing board portion 42 On be formed with aftermentioned mixing pipe portion 54 in face of each burner 5 upstream end inflow entrance 54a each opening 44.In addition, one The front surface of secondary air chamber 31 is blocked by gas manifold 6.Be provided on gas manifold 6 with 44 opposite each nozzles 61 of each opening, Each opening 44, the mixing pipe portion 54 of i.e. each burner 5 are supplied fuel gas from each nozzle 61 and are supplied from primary air room 31 Primary air.In addition, being configured with the column of flame 7, ignitor 8 and observation window 9 on the exterior panel 11 of the front surface of burning cover 1.This Outside, gas manifold 6 is omitted in Fig. 1.

In addition, the upper end of the ratio burner 5 of burning cover 1 it is against the top exterior panel part it is strong because of the burning of burner 5 It heats strongly.Therefore, in order to ensure the heat resistance of burning cover 1, the exterior panel 11 to the front surface of burning cover 1, rear table are provided with The inner surface of the upper end of the ratio burner 5 of the exterior panel 13 of the exterior panel 12 and left and right sides in face part against the top with its The thermal insulation board 14,15,16 for front side, rear side and the left and right sides that mode with gap is covered.Moreover, in order to burner 5 are positioned, and the burner pressing plate 17 abutted with the end edge of burner 5 is provided in burning cover 1.

Referring to Fig. 4, Fig. 5, burner 5 include burner body 51 with transversely opposed a pair of side plates 51a, 51a, The burner cap 52 of a pair of side plates 52a, 52a with the outer side covering burner body 51 from both lateral sides.Moreover, burning The upper end of device 5 is provided with main flame hole 53a and side fire flame hole 53b, main flame hole as the flame hole 53 for spraying gaseous mixture By front-rear direction, there are in a manner of interval on the upper plate 51b of the upper end of both side plate 51a, 51a of connection burner body 51 by 53a Formed it is multiple, side fire flame hole 53b be formed in burner body 51 each side plate 51a and burner cap 52 each side plate 52a it Between.

In addition, being provided with the mixing tube from the lower part that the inflow entrance 54a of front end rearward extends on burner body 51 Portion 54, the main mixture access 55 extended of upwardsing while extending along the longitudinal direction from the rear end of mixing pipe portion 54.And And fuel gas and the gaseous mixture of primary air flowed into from inflow entrance 54a is via mixing pipe portion 54 and main mixture access 55 It is directed into main flame hole 53a.Moreover, both side plate 51a, 51a and upper plate 51b of burner body 51 be by one block of plate into Row bending and formed.

Between each side plate 51a of burner body 51 and each side plate 52a of burner cap 52, it is provided with and side fire flame Mouth 53b connected side fire gaseous mixture access 56.In addition, being formed with multiple ventholes on each side plate 51a of burner body 51 Position 56a, multiple venthole 56a against the top positioned at the part that the lower part than each side plate 52a of burner cap 52 is overlapped, even Logical main mixture access 55 and side fire gaseous mixture access 56, and there is interval in front-rear direction.Moreover, from main mixture access 55 gaseous mixtures shunted via these ventholes 56a are fed into side fire flame hole 53b by side fire gaseous mixture access 56, pass through The side fire formed on the fire flame hole 53b of side carries out guarantor's flame to the main flame formed on main flame hole 53a.

In addition, form the groove portion 57 of oriented laterally inboard recess on each side plate 52a of burner cap 52, groove portion 57 be located at than Position venthole 56a against the top.The gaseous mixture of side fire gaseous mixture access 56 is flowed into than groove portion from venthole 56a as a result, 57 part on the lower is distributed along the front and back, it can be ensured that the gaseous mixture sprayed from side fire flame hole 53b is in the longitudinal direction Distribution uniformity.In addition, burner cap 52 has bridge portion 52b, bridge portion 52b is by the upper end of both side plate 52a, 52a in front and back Multiple positions link up.Moreover, the rear end lower in burner body 51 is formed with the notch that burner pressing plate 17 engaged Portion 58.

When burning beginning, need to carry out prolonging burning to other burners 5 from the burner 5 in face of ignitor 8.Therefore, It is provided with to prolong in gap between each burner 5,5 and burns plate 18, prolong and burn plate 18 positioned at the flame hole forming region with each burner 5 Rear end overlapping front-rear direction part upper end near, hinder the rising of auxiliary air.Auxiliary air is difficult in flow to as a result, Prolong the surface part for burning plate 18, therefore, when prolonging burning, from the ejection of flame hole 53 across an adjacent burner 5 of gap Gaseous mixture a part and from the flame hole 53 of another burner 5 spray gaseous mixture a part be stranded in prolong burn plate 18 Surface part, promote fire from a burner 5 to another burner 5 to prolong burning.

In addition, the air-flow of auxiliary air upward will generate vortex prolonging near the front end for burning plate 18.Also, such as The fruit vortex reaches the upper end of burner 5, then is influenced by vortex and bring baneful influence to the flammability of burner 5.

Therefore, in the present embodiment, curved bending part 18a downwards is formed in the front end for prolonging burning plate 18.By This, vortex will be generated in the lower end of bending part 18a.Therefore, the generation position of vortex deviates downwards, and vortex is difficult to reach The upper end of burner 5 can prevent the flammability of burner 5 from being influenced and being deteriorated by vortex.

In addition, in the present embodiment, as shown in figure 3, in the above-mentioned groove portion for each side plate 52a for being formed in burner cap 52 57 burn the side edge part of plate 18 inserted with prolonging.Even if as a result, burner 5, prolong and burn the error of transverse width of plate 18 and make each burning 57 side of groove portion of device 5 and prolong burn plate 18 lateral margin between gap broaden, via gap from prolong burn plate 18 lower section to Flow path up to the auxiliary air of top also can be to transverse curvature in groove portion 57, and therefore, aeration resistance becomes larger, and flows to prolong and burns plate 18 The flow of auxiliary air of top not will increase too much.Moreover, towards the air-flow for burning the auxiliary air of top of plate 18 is prolonged The impetus by the imparting cross stream component of groove portion 57 upward dies down.Therefore, it is stranded in and prolongs the mixed of the surface part for burning plate 18 It closes gas and will not be blown and flown too much, can be effectively prevented burning extension can deteriorate.

In addition, in the present embodiment, as shown in fig. 6, the upper limb in burner pressing plate 17 is integrally formed with and prolongs burning plate 18.Thereby, it is possible to cut down number of components, to reduce cost.

Then, Fig. 7, the 2nd embodiment shown in Fig. 8 are illustrated.The essential structure of 2nd embodiment and above-mentioned the 1 embodiment assigns symbol same as described above to component site identical with the 1st embodiment without especially difference.2nd is real The difference for applying mode and the 1st embodiment is: the exterior panel 12 of the rear surface to burning cover 1 ratio burner 5 it is upper Hold the inner surface of part against the top by with its with gap in a manner of the lower edge of the thermal insulation board 15 of rear side that is covered, one Ground, which is formed with to prolong, burns plate 18.Even such structure can also cut down number of components, to reduce cost.

More than, embodiments of the present invention are illustrated referring to attached drawing, still, the present invention is not limited thereto.For example, It can also will prolong burning plate in the gap between each burner 5,5 to be configured to: positioned at the flame hole forming region with each burner 5 Near the upper end of the front-rear direction part of front end overlapping.As long as at this point, forming bending part prolonging the rear end for burning plate.This Outside, for using the burner of the burner without burner cap can also be equally using the present invention as burner.

Claims

1. a kind of burner has burning cover, the air supply chamber on the downside of combuster and combustion chamber, upper end are set in burning cover It is the burner of length direction in the combustion chamber laterally to have gap with the flame hole for spraying gaseous mixture and using front-rear direction Ground arrangement mode be set side by side with it is multiple, auxiliary air from air supply chamber rise and be supplied to combustion chamber, between each burner Configured with burning plate is prolonged in gap, this, which prolongs, burns plate positioned at an end with the rear ends of the flame hole forming region of each burner Near the upper end of the front-rear direction part of overlapping, the rising of auxiliary air is hindered, it is characterised in that:

Curved bending part downwards is formed with prolonging another end for burning the rear ends of plate.

2. burner according to claim 1, it is characterised in that:

With the burner pressing plate that an ora terminalis with the front and back ora terminalis of the burner abuts, in the upper limb one of burner pressing plate It is formed to body to be stated and prolongs burning plate.

3. burner according to claim 1, it is characterised in that:

With thermal insulation board, burner described in ratio of the thermal insulation board to an exterior panel of the front and back exterior panel of the burning cover is top The inner surface of the part of side by with its with gap in a manner of covered, be integrally formed in the lower edge of the thermal insulation board described Prolong burning plate.