CN105737150B

CN105737150B - Burner

Info

Publication number: CN105737150B
Application number: CN201510918715.XA
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: 2019-05-10
Anticipated expiration: 2035-12-11
Also published as: JP2016125685A; BR102015031351B1; TWI567342B; BR102015031351A2; CN105737150A; TW201623879A; JP6452146B2

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 (53) 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 of the rear ends of the flame hole forming region of each burner, hinder the rising of auxiliary air, even if burner or prolong burn plate transverse width error make each burner and prolong burn plate between gap broaden, also it can prevent burning extension from can deteriorate.The groove portion (57) of oriented laterally inboard recess is formed in the part corresponding with burning plate (18) is prolonged of the lateral surface of each burner (5), the side edge part for prolonging burning plate (18) is inserted in the groove portion (57).

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, 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.

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 this burner, auxiliary air is difficult to flow To the surface part for burning plate is prolonged, therefore, when prolonging burning, sprayed from the flame hole across an adjacent burner of gap A part of gaseous mixture and from the flame hole of another burner spray gaseous mixture a part be stranded in prolong burn plate just on Square part promotes fire to prolong burning from a burner to another burner.

Here, it is preferred that the gap installation for making the lateral surface of each burner and prolonging between the lateral margin for burning plate is prolonged needed for burning plate Minimum limit.But above-mentioned gap becomes larger due to the error of burner or the transverse width for prolonging burning plate sometimes.Moreover, if seam Gap becomes larger, then auxiliary air flows to top via gap, which, which to be stranded in, prolongs the surface part for burning plate Gaseous mixture is blown winged, can be deteriorated so as to cause burning extension.

Citation

Patent document

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

Summary of the invention

The present invention be exactly made in view of problem above, and it is an object of the present invention to provide a kind of burner, even if burner or Prolong burn plate transverse width error make each burner and prolong burn plate between gap broaden, which also can Prevent burning extension from can deteriorate.

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: forms the groove portion of oriented laterally inboard recess in the part corresponding with burning plate is prolonged of the lateral surface of each burner, prolong burning plate Side edge part be inserted in the groove portion.

According to the present invention, though the error that burner or prolong burns the transverse width of plate make the groove portion side of each burner with The gap prolonged between the lateral margin for burning plate broadens, due to the auxiliary air above reaching via gap from the lower section for prolonging burning plate Flow path is to transverse curvature in groove portion, and therefore, aeration resistance becomes larger, flow to prolong the flow of auxiliary air of the top for burning plate will not Increase too many.Moreover, cross stream component is endowed because of groove portion towards the air-flow for burning the auxiliary air of top of plate is prolonged, thus direction The impetus of top dies down.Therefore, be stranded in prolong the surface part for burning plate gaseous mixture will not be blown fly it is too many, can be effectively Prevent the deterioration of burning extension energy.

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.Thereby, it is possible to cut down number of components, to reduce cost.

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, 2 ... combustion chambers, 3 ... air supply chambers, 5 ... burners, 53 ... flame holes, 57 ... groove portions.

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, the supply hot-water converter that the illustration is omitted is provided on burning cover 1 as being added Hot 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 passes through with combustion chamber 2 is isolated Plate 4 is kept 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 The burner 5 in direction.

It is connected with the combustion blower outside figure in the bottom surface of air supply chamber 3, supplies air from combustion blower to air supply chamber 3. Multiple distribution holes 41 are formed on isolation board 4.Moreover, the air for being supplied to air supply chamber 3 rises to via these distribution holes 41 Combustion chamber 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 are fed into side fire flame hole 53b further through side fire gaseous mixture access 56 via the gaseous mixture that these ventholes 56a is shunted, and lead to It crosses the side fire formed on the fire flame hole 53b of side and guarantor's flame is carried out 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 spray of flame hole 53 across an adjacent burner 5 of gap A part of gaseous mixture out and a part of the gaseous mixture sprayed from the flame hole 53 of another burner 5 are stranded in and prolong burning plate 18 surface part promotes fire to prolong burning from a burner 5 to another burner 5.

In addition, in the present embodiment, being formed in each burner 5 as shown in figure 3, the side edge part for burning plate 18 will be prolonged and be inserted into Lateral surface that is, each side plate 52a of burner cap 52 with prolong the above-mentioned groove portion 57 for burning the corresponding up and down direction position of plate 18.

Even if as a result, burner 5, prolong burn the transverse width of plate 18 error make 57 side of groove portion of each burner 5 with The gap prolonged between the lateral margin for burning plate 18 broadens, via gap from the auxiliary air for prolonging the lower section for burning plate 18 and reaching top Flow path also can be to transverse curvature in groove portion 57, and therefore, aeration resistance becomes larger, and flows to the auxiliary air for prolonging the top for burning plate 18 Flow not will increase too much.Moreover, assigning lateral point by groove portion 57 towards the air-flow for burning the auxiliary air of top of plate 18 is prolonged Amount and the impetus upward dies down.Therefore, be stranded in prolong the surface part for burning plate 18 gaseous mixture will not be blown fly it is too many, Burning extension, which can be effectively prevented, to be deteriorated.

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.

But, prolonging near the front end for burning plate 18, the air-flow of auxiliary air upward will generate vortex.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.Vortex will be curved as a result, The lower end of folding part 18a generates.Therefore, the generation position of vortex deviates downwards, and vortex is difficult to reach the upper of burner 5 End, can prevent the flammability of burner 5 from being influenced and being deteriorated by vortex.

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.

Embodiments of the present invention are illustrated above by reference to attached drawing, still, the invention is not limited thereto.For example, In above embodiment, the side edge part for prolonging burning plate 18 is inserted in the distribution in order to make the gaseous mixture towards side fire flame hole 53b The groove portion 57 for homogenizing and being formed on the side plate 52a of burner cap 52, but it is also possible to be formed on side plate 52a for inserting Enter to prolong the dedicated groove portion for the side edge part for burning plate 18.

Alternatively, it is also possible to make burner 5 without burner cap 52.As long as at this point, burner 5 lateral surface that is, The up and down direction position corresponding with burning plate 18 is prolonged of the side plate 51a of burner body 51, forms the groove portion being recessed to laterally inboard, And the groove portion is inserted in by the side edge part for burning plate 18 is prolonged.In addition it is also possible to which burning will be prolonged in gap between each burner 5,5 Plate 18 is configured to: the upper end positioned at the front-rear direction part Chong Die with the front end of flame hole forming region of each burner 5 is attached Closely.

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,

Each burner includes burner body with transversely opposed a pair of side plates, with the outer side covering from both lateral sides The burner cap of a pair of side plates of burner body, the flame hole as each burner are provided with main flame hole and side fire flame Mouthful, main flame hole is formed in such a way that front-rear direction is there are interval on the upper plate of the upper end of the both side plate of connection burner body Multiple, side fire flame hole is formed between each side plate of burner body and each side plate of burner cap, on burner body It is provided with mixing pipe portion and the gaseous mixture from mixing tube portion is directed to the main mixture access of main flame hole, also, Between each side plate of burner body and each side plate of burner cap, it is logical to be provided with the side fire gaseous mixture being connected with side fire flame hole Road is formed with the venthole of multiple connection main mixture accesses and side fire gaseous mixture access on each side plate of burner body, These ventholes have the interval on front-rear direction,

The burner is characterized in that:

Be formed with groove portion on each side plate of the burner cap of each burner, the groove portion be located at it is more against the top than venthole and with prolong The matched up and down direction part of plate is burnt, and is recessed to laterally inboard, the gaseous mixture of side fire gaseous mixture access is flowed into from venthole It is distributed along the front and back than the part of groove portion on the lower, the side edge part for prolonging burning plate is inserted in the groove portion.

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 of the burner pressing plate Prolong burning plate described in being integrally formed with.

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.