CN222256551U - Distributor assembly and burner - Google Patents

Abstract

The utility model provides a distributor assembly and a burner. The distributor assembly comprises a distributor body and flame stabilizing rings, wherein the distributor body is provided with an annular distributor mixing cavity and comprises a distributor inner wall arranged on the inner side of the distributor mixing cavity, a plurality of first ignition holes are formed in the distributor inner wall, the flame stabilizing rings are connected to the distributor inner wall and are provided with overlapping portions with the distributor inner wall, and the flame stabilizing rings are provided with second ignition holes which are communicated with the first ignition holes one by one and correspond to the overlapping portions. The distributor assembly is provided with the plurality of first ignition holes through the distributor main body, the second ignition holes are arranged at positions of the flame stabilizing rings corresponding to the first ignition holes, and the depth of the distributor main body at the first ignition holes is increased through the flame stabilizing rings.

Description

Distributor assembly and burner

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a distributor assembly and a burner.

Background

The burner of the burner is usually provided with an inner ring mixing cavity and an outer ring mixing cavity, and the relative positions and structures of the outer ring mixing cavity and the inner ring mixing cavity are mainly two, namely, the outer ring mixing cavity surrounds the inner ring mixing cavity, so that the burner has the advantages of simple structure, small volume, lower cost and the like, and is widely applied. However, the structure has the defects of insufficient injection, insufficient blue flame and insufficient uniformity of flame. The other is that at least one outer ring mixed air cavity is arranged on one side of the inner ring mixed air cavity, the outer ring mixed air cavity and the inner ring mixed air cavity are in non-concentric design, and especially when a plurality of outer ring mixed air cavities are annularly arranged along the circumferential direction of the inner ring mixed air cavity at equal intervals, the formed outer ring fire is blue and uniform compared with the flame of the former outer ring mixed air cavity, but the structure usually adopts a gravity casting or die casting mode, so that the process difficulty is high, the manufacturing efficiency is low, and the defects of low combustion efficiency and uneven flame still exist.

Accordingly, there is a need for further optimization of the burner and corresponding optimization of other parts of the burner such as the fire cover assembly, the injector tube assembly, and the distributor assembly.

Disclosure of utility model

The present utility model is directed to solving at least one of the problems discussed above and/or other problems in the prior art.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

According to one aspect of the utility model, the distributor assembly comprises a distributor body and a flame stabilizing ring, wherein the distributor body is provided with an annular distributor mixing cavity and comprises a distributor inner wall arranged on the inner side of the distributor mixing cavity, a plurality of first ignition holes are formed in the distributor inner wall, the flame stabilizing ring is connected to the distributor inner wall and provided with an overlapping portion with the distributor inner wall, and second ignition holes which are communicated with the first ignition holes one by one are formed in the flame stabilizing ring corresponding to the overlapping portion.

According to an embodiment of the present utility model, the distributor inner wall includes an ignition hole portion extending at least partially along a circumferential direction thereof, and the plurality of first ignition holes are provided at the ignition hole portion at equal intervals along the circumferential direction of the distributor inner wall.

According to an embodiment of the present utility model, the flame holding ring includes a flame holding ring body, at least a portion of an outer peripheral wall of the flame holding ring body is attached to the ignition hole portion, and the plurality of second ignition holes are arranged on the portion of the outer peripheral wall and are in one-to-one communication with the plurality of first ignition holes.

According to an embodiment of the present utility model, the flame holding ring further includes a flame holding ring connecting portion connected to a top portion of the flame holding ring main body, and the flame holding ring connecting portion extends outward in a radial direction of the flame holding ring to abut against a top portion of the inner wall of the flame distributor.

According to an embodiment of the utility model, the top of the flame holder connection part is provided with a first inclined plane and a second inclined plane, wherein the first inclined plane is flush with the inner peripheral surface of the outer fire cover, and the second inclined plane is matched with the inner end bottom surface of the outer fire cover.

According to one embodiment of the utility model, the distributor body further comprises an ignition extension part integrally formed with the ignition hole part, the ignition extension part extends into the distributor mixing cavity along the radial direction of the distributor body, and the ignition extension part is provided with a third ignition hole penetrating through the first ignition hole.

According to an embodiment of the present utility model, the flame holding ring main body and the inner wall of the distributor are fixed by riveting, and the first ignition hole, the second ignition hole and the third ignition hole are integrally formed in the ignition hole portion, the flame holding ring main body and the ignition extension portion by drilling after riveting.

According to an embodiment of the present utility model, the third ignition hole, the first ignition hole, and the second ignition hole are sequentially communicated and extend obliquely upward in the gas flow direction.

According to another aspect of the present utility model, a burner is provided. The burner comprises the distributor assembly, the base assembly and the injection pipe assembly. The bottom of the distributor mixing cavity is provided with a first distributor inlet and a second distributor inlet, the base assembly comprises a base main body provided with a first base outlet and a second base outlet, the first base outlet is communicated with the first distributor inlet, the second base outlet is communicated with the second distributor inlet, the base main body is further provided with at least one air inlet pipe in an outward extending mode, and the injection pipe assembly comprises at least one injection pipe main body in one-to-one correspondence with the air inlet pipe.

According to an embodiment of the present utility model, the burner further includes an outer ring ignition needle, and a needle tip of the outer ring ignition needle is correspondingly disposed at the second ignition hole.

One embodiment of the present utility model has the following advantages or benefits:

The distributor assembly is provided with the plurality of first ignition holes through the distributor main body, the second ignition holes are arranged at positions of the flame stabilizing rings corresponding to the first ignition holes, and the depth of the distributor main body at the first ignition holes is increased through the flame stabilizing rings.

Drawings

The above and other features and advantages of the present utility model will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 shows a perspective view of a burner according to an exemplary embodiment of the present utility model.

Fig. 2 shows an exploded view of the burner shown in fig. 1.

Fig. 3 shows a cross-sectional view of the burner shown in fig. 1 along a vertical plane through the inner ring air inlet duct.

Fig. 4 shows a perspective view of an inner fire cover of the burner shown in fig. 1.

Wherein reference numerals are as follows:

1. An ejector tube assembly; 11, an ejector tube main body; 111, straight pipe sections; 112, diffuser section, 113, nozzle, 114, outer ring injector pipe, 115, inner ring injector pipe, 12, second connection section, 121, second connection hole, 13, gasket, 2, base assembly, 21, base body, 211, inner ring mixing chamber, 2111, first inner ring chamber, 21111, first inner ring inner wall, 21112, first inner ring outer wall, 21113, first inner ring bottom wall, 21114, first inner ring side wall, 2112, second inner ring chamber, 21121, second inner ring outer wall, 21122, second inner ring inner wall, 21123, second inner ring bottom wall, 212, secondary air inlet, 213, inner ring partition, 214, inner ring support post, 215, first outer ring mixing chamber, 2151, first outer ring mixing chamber, 2152, first outer ring side wall, 2153, first outer ring inner wall, 2154, first outer ring outer wall, 216, second outer ring mixing chamber, second outer ring inner wall, 2161, second outer ring inner wall, 216, second outer ring inner wall, 2, second outer ring inner wall, insulator, 2113, second outer ring outer wall, 22, inlet pipe, 221, 23, inner ring inner wall, 23, inner ring inner wall, inlet pipe, 23, inner ring flange, 213, inner ring flange, 212, inner ring flange, inner flange, outer flange, inner flange, outer flange, inner flange, inner flange, flange, inner flange, inner flange, outer flange, inner flange, outer flange outer ring outer, auxiliary fire holes, 61112, a first area, 6112, an inner fire cover top wall, 61121, a fire groove group, 611211, a main fire groove, 611212, a flame stabilizing groove, 6113, an inner fire cover outer wall, 6114, an inner fire cover cavity, 612, a shielding part, 613, a first baffle, 6131, a first through hole, 6132, a second through hole, 62 and an outer fire cover.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc., the terms "comprising" and "having" are intended to mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.

Fig. 1 to 3 show a burner according to an embodiment of the present utility model. As shown in fig. 2 and 3, the burner may include an injection tube assembly 1, a base assembly 2, a distributor assembly 3, an inner ring ignition needle 4, an outer ring ignition needle 5, and a fire cover assembly 6, which are connected in sequence. The injection pipe assembly 1 may include at least one injection pipe body 11, and the base assembly 2 may include a base body 21 and at least one air inlet pipe 22 extending from the base body 21, where the at least one injection pipe body 11 is disposed in one-to-one correspondence with the at least one air inlet pipe 22. Each of the injection pipe bodies 11 may include a straight pipe section 111 and a diffuser section 112 connected to the straight pipe section 111, at least a portion of the diffuser section 112 extending into the gas inlet pipe 22, and the gas inlet pipe 22 having a larger diameter than the straight pipe section 111, the diffuser section 112 having a diameter gradually expanding from the diameter of the straight pipe section 111 to the diameter of the gas inlet pipe 22 in the flow direction of the gas, so that turbulence generated by the gas striking the gas inlet pipe 22 may be reduced. And the air inlet pipe 22 further extends the length of the ejector main body 11, sufficiently mixing the gas (e.g., the mixture of air and gas) that enters the ejector main body 11. It will be appreciated that the end of the eductor remote from the diffuser 112 is provided with a nozzle 113, and that when the fuel gas from the municipal pipeline enters the eductor body 11 through the nozzle 113, the primary air entering the nozzle 113 due to the action of the negative pressure is formed so as to form a mixture of air and fuel gas within the eductor body 11.

The ejector tube assembly 1 and the base assembly 2 in the prior art generally comprise an upper part and a lower part which are split, and are fixed through glue and screws, so that the problem of high processing difficulty is solved. Compared with the prior art, the connecting structure of the burner provided by the embodiment of the utility model ensures the integrity of the injection pipe main body 11 and simultaneously ensures the injection and mixing capabilities of the injection pipe main body 11 by the way of butt joint of the air inlet pipe 22 of the base assembly 2 and the diffusion section 112 of the injection pipe main body 11, reduces the process difficulty, and reduces the number of parts and the cost by combining parts on the premise of ensuring the performance compared with the prior art.

Further, the diffusion angle of the diffusion section 112 is 6 ° to 8 °, so that the diffusion effect of the diffusion section 112 is effectively improved, and the more fully mixed gas formed by the fuel gas and the air can be mixed. The diameter of the air inlet pipe 22 is 1 to 2 times that of the straight pipe section 111, so that the wall thickness with enough strength can be ensured when the ejector pipe main body 11 extends along the diffusion angle, the ejector pipe can be prolonged enough, the ejector capacity is strong, the mixed gas can be fully mixed, and the performance is better. It will be appreciated that a plane passing through the centerline of the diffuser 112 bisects the diffuser 112 to form a cross-section of the diffuser 112 in which the inner wall of the diffuser 112 (shown as two straight lines in the cross-section) defines an included angle that is the diffuser angle of the diffuser 112.

According to an exemplary embodiment of the connection manner of the base assembly 2 and the ejector tube assembly 1, as shown in fig. 1 to 3, a first connection portion 23 is provided at an end of the air inlet tube 22 away from the base body 21 (a right end of the air inlet tube 22 shown in fig. 1 to 3 or a start end along which the air flows), and a second connection portion 12 is provided at an outer periphery of a connection portion of the diffuser 112 and the straight tube section 111, so that the second connection portion 12 is sealingly connected to the first connection portion 23 when the diffuser 112 is inserted into the air inlet tube 22.

Further, the first and second connection parts 23 and 12 are provided with first and second connection holes 231 and 121 at positions corresponding to overlapping portions thereof, and the first bolts are fastened by first nuts after passing through the first and second connection holes 231 and 121. The base assembly 2 and the injection pipe assembly 1 are fixed in a butt joint mode, and the sealing ring 13 is arranged between the first connecting part 23 and the second connecting part 12, so that the process is simple, and the sealing performance is good.

According to an exemplary embodiment of the air inlet pipe 22, as shown in fig. 2, at least one air inlet pipe 22 may comprise an outer ring air inlet pipe 221, and at least one ejector body 11 comprises an outer ring ejector 114 extending at least partially into the outer ring air inlet pipe 221. The at least one air inlet conduit 22 may further comprise an inner annular air inlet conduit 222 and the at least one eductor body 11 may further comprise an inner annular eductor 115 extending at least partially into the inner annular air inlet conduit 222. It will be appreciated that the outer ring ejector 114 and the inner ring ejector 115 are disposed side by side and pass through the second connection 12 at the same time. The outer ring ejector pipe 114 and the inner ring ejector pipe 115 both include a diffuser 112 and a straight pipe 111, and with reference to the aforementioned connection, the diffuser 112 of the outer ring ejector pipe 114 is inserted into the outer ring air inlet pipe 221, and when the diffuser 112 of the inner ring ejector pipe 115 is inserted into the inner ring air inlet pipe 222, the first connection portion 23 and the second connection portion 12 are fixedly connected.

According to an exemplary embodiment of the base body 21, as shown in fig. 1 to 3, the base body 21 is surrounded with an inner ring mixing chamber 211. The inner mixing chamber 211 includes a first inner chamber 2111 and a second inner chamber 2112 which are disposed in a stacked and communicating manner from bottom to top. The first inner ring cavity 2111 has a sector-shaped cross section, and the second inner ring cavity 2112 has an annular cross section and is disposed coaxially with the first inner ring cavity 2111. The base main body 21 is provided with a secondary air inlet 212, the cross section of the secondary air inlet 212 is fan-shaped and is opposite to the first inner annular cavity 2111, secondary air entering the middle of the inner annular mixed air cavity 211 through the secondary air inlet 212 provides secondary air supplement for combustion of inner annular flame, so that mixed gas in the inner annular mixed air cavity 211 can be fully combusted, yellow incomplete combustion flame is reduced, and the inner annular flame is blue. The top of the second inner ring chamber 2112 is open and is connected to an inner fire cover 61 (which will be described in detail below) of the fire cover assembly 6.

Further, the first inner annular chamber 2111 and the secondary air inlet 212 each extend 180 ° in the circumferential direction of the base body 21, such that the secondary air inlet 212 and the first inner annular chamber 2111 may be joined to form a complete annular structure providing more secondary air replenishment for the inner annular flame.

To form the first inner ring cavity 2111, as shown in fig. 3, the base body 21 may further include a first inner ring inner wall 21111, a first inner ring outer wall 21112, a first inner ring bottom wall 21113, and two first inner ring side walls 21114 disposed in the same vertical plane. The two first inner ring side walls 21114 extend from the first inner ring inner wall 21111 to the first inner ring outer wall 21112 in opposite directions in the radial direction of the base body 21, respectively, to form a cylindrical structure whose cross section is a sector of which the central angle is 180 °, and the bottom wall of the cylindrical structure is blocked by the first inner ring bottom wall 21113. The inner ring intake pipe 222 communicates with the outer periphery of the first inner ring chamber 2111 (the bottom in the circumferential middle of the first inner ring outer wall 21112) and extends radially outward (the side away from the base body 21) of the first inner ring chamber 2111.

With continued reference to fig. 3, the base body 21 further includes a second inner ring outer wall 21121, a second inner ring inner wall 21122, and a second inner ring bottom wall 21123. Wherein, the second inner ring bottom wall 21123 is connected with the top of the first inner ring inner wall 21111 and extends along the horizontal direction, the second inner ring inner wall 21122 and the second inner ring outer wall 21121 respectively continue to extend upwards at the corresponding positions of the first inner ring inner wall 21111 and the first inner ring outer wall 21112, and respectively extend along the circumferential direction of the base body 21, thereby forming a second inner ring cavity 2112 which is annular at the top of the first inner ring cavity 2111 and communicates with the first inner ring cavity 2111.

Further, referring to fig. 3, the base body 21 further includes an inner ring partition 213 provided to the first inner ring inner wall 21111 and extending in the horizontal direction outside the first inner ring cavity 2111. And the inner ring partition 213 is spaced from the second inner ring bottom wall 21123 by a distance such that the secondary air inlet 212 is defined by the inner ring partition 213, the second inner ring bottom wall 21123, and the two first inner ring side walls 21114. It will be appreciated that the height of the secondary air inlet 212 may be determined by the gas ratio of the mixture within the inner ring mixture chamber 211, and that the spacing between the inner ring baffle 213 and the second inner ring bottom wall 21123 may be increased appropriately when a greater amount of secondary air replenishment is required.

Since only half of the constituent members surrounding the second inner ring chamber 2112 are supported by the constituent members of the first inner ring chamber 2111, the base body 21 may further include an inner ring support post 214 provided in the middle of the secondary air inlet 212, as shown in fig. 3, in order to enhance the connection strength of the base body 21. The inner ring support post 214 extends downwardly from the second inner ring bottom wall 21123 to the inner ring support post 214 to support the constituent parts of the second inner ring chamber 2112 and the distributor assembly 3 and the fire cover assembly 6 attached to the base body 21 in conjunction with the constituent parts of the first inner ring chamber 2111.

With continued reference to fig. 3, the base body 21 is further surrounded by a first outer ring air mixing chamber 215 and a second outer ring air mixing chamber 216 which are disposed at intervals along the circumferential direction thereof and extend in the up-down direction respectively, and the outer ring air inlet pipe 221 communicates with the first outer ring air mixing chamber 215 and the second outer ring air mixing chamber 216 respectively, thereby providing mixed gas for the second outer ring air mixing chamber 216 and the first outer ring air mixing chamber 215 in sequence. When viewed along the vertical direction shown in fig. 3, the outer ring air inlet pipe 221 is in a straight pipe shape, the first outer ring air mixing cavity 215 is positioned at the distal end of the outer ring air inlet pipe 221, the included angle between the first outer ring air mixing cavity 215 and the second outer ring air mixing cavity 216 is in an acute angle, the flow area of the first outer ring air mixing cavity 215 is larger than the flow area of the second outer ring air mixing cavity 216, so that more mixed gas can be introduced at the distal end of the gas inlet pipe 22, and thus when the base body 21 is connected with the distributor assembly 3, the mixed gas can flow from the first outer ring mixed gas cavity 215 to the corresponding position of the second outer ring mixed gas cavity 216 in the clockwise direction after flowing into the distributor assembly 3, so that the mixed gas of the whole burner is more uniform, and the fire is more uniform.

According to an exemplary embodiment of the first outer ring gas mixing chamber 215, as shown in fig. 3, the first outer ring gas mixing chamber 215 has a first outer ring bottom wall 2151, and a start end of the first outer ring bottom wall 2151 is connected to a distal bottom wall of the gas inlet pipe 22 and gradually rises in a flow direction of the gas in a circumferential direction of the base body 21, thereby forming a flow height of the gradually rising gas, preventing turbulence generated by the gas directly striking an inner wall of the first outer ring gas mixing chamber 215.

Further, as shown in fig. 3, the first outer ring air mixing chamber 215 may further include two first outer ring side walls 2152 disposed at intervals in a radial direction of the base body 21, and a first outer ring inner wall 2153 and a first outer ring outer wall 2154 disposed at intervals in the radial direction of the base body 21, where the two first outer ring side walls 2152 extend upward along the first outer ring bottom wall 2151, respectively, one of the first outer ring side walls 2152 extends upward from an end of the outer ring air inlet pipe 221, and the other first outer ring side wall 2152 is disposed on a side of the first outer ring air mixing chamber 215 away from the outer ring air inlet pipe 221 in a clockwise direction. The flow area of the first outer ring mixing chamber 215 is defined by the two first outer ring side walls 2152, the first outer ring outer wall 2154, the first outer ring inner wall 2153, and the first outer ring bottom wall 2151.

According to an exemplary embodiment of the second outer ring air mixing chamber 216, as shown in fig. 2, the second outer ring air mixing chamber 216 includes two second outer ring side walls 2161 respectively extending upward from the outer ring air inlet pipe 221, and includes a second outer ring inner wall 2162 and a second outer ring outer wall 2163 disposed at intervals in the radial direction of the base body 21. The two second outer ring side walls 2161 are disposed along the radial direction of the base body 21, and the second outer ring side wall 2161 (the left second outer ring side wall 2161 shown in fig. 2) located downstream in the direction of the gas flow in the outer ring gas inlet pipe 221 is disposed at an acute angle to the first outer ring side wall 2152 (the right first outer ring side wall 2152 shown in fig. 2) extending upward from the end of the outer ring gas inlet pipe 221, so that the outer ring gas inlet pipe 221 is communicated with the second outer ring gas mixing chamber 216 and then with the first outer ring gas mixing chamber 215.

In the above embodiment, the base bracket is provided between the second outer ring side wall 2161 (the right second outer ring side wall 2161 shown in fig. 2) located upstream of the flow direction of the gas in the outer ring gas inlet pipe 221 and the first outer ring side wall 2152 (the right second outer ring side wall 2161 shown in fig. 2) on the side far from the outer ring gas inlet pipe 221 in the clockwise direction, by which the supporting strength of the walls of the first outer ring gas mixing chamber 215 and the second outer ring gas mixing chamber 216 can be enhanced. The air channels are arranged on the base support at intervals, so that air can conveniently enter the base main body 21 from bottom to top or from outside to inside.

According to an exemplary embodiment of the distributor assembly 3, as shown in fig. 2, the distributor assembly 3 comprises a distributor body 31, a flame stabilizing ring 32 and a distributor baffle 33. The distributor body 31 has an annular distributor mixing chamber 311 and includes a distributor bottom wall 312, a distributor inner wall 313 and a distributor outer wall 314 disposed on the bottom side, the inner side and the outer side of the distributor mixing chamber 311, respectively. The distributor inner wall 313 includes an ignition hole portion 3131 extending at least partially along a circumferential direction thereof, and the distributor body 31 further includes an ignition extension portion 315 integrally formed with the ignition hole portion 3131, the ignition extension portion 315 extending radially of the distributor body 31 into the distributor mixing chamber 311. The distributor inner wall 313 is provided with a plurality of first ignition holes 31311 penetrating therethrough at intervals corresponding to the ignition hole portion 3131, and the ignition extension 315 is provided with a third ignition hole 3151 penetrating through the first ignition hole 31311. The thickness of the first ignition holes 31311 disposed in the distributor inner wall 313 is advantageously increased by the ignition extension 315, thereby making the gas exiting the first ignition holes 31311 more uniform. A first distributor inlet 3121 corresponding to the first outer annular gas mixing chamber 215 and a second distributor inlet 3122 corresponding to the second outer annular gas mixing chamber 216 are spaced above the distributor bottom wall 312 such that gas from the first outer annular gas mixing chamber 215 and the second outer annular gas mixing chamber 216 can enter the distributor gas mixing chamber 311 through the first distributor inlet 3121 and the second distributor inlet 3122, respectively. Both the first ignition holes 31311 and the third ignition holes 3151 are provided at corresponding positions of the first distributor inlet 3121 so that gas can enter the plurality of first ignition holes 31311 through the first distributor inlet 3121 via the distributor mixing chamber 311. The second distributor inlet 3122 is spaced apart from the first distributor inlet 3121 along the circumference of the distributor body 31 and extends from the distributor inner wall 313 to the distributor outer wall 314, respectively.

According to an exemplary embodiment of the flame holding ring 32, as shown in fig. 3, the flame holding ring 32 is connected to the distributor inner wall 313 and has an overlapping portion with the distributor inner wall 313, the flame holding ring 32 is provided with second ignition holes 321 in one-to-one communication with the first ignition holes 31311 corresponding to the overlapping portion, and the tip portions of the outer ring ignition pins 5 are disposed at the second ignition holes 321 corresponding to each other. The third ignition hole 3151, the first ignition hole 31311, and the second ignition hole 321 are sequentially communicated and extend obliquely upward in the gas flow direction, so that when the flame stabilizing ring 32 is connected to the distributor body 31, the gas in the distributor mixing chamber 311 can sequentially pass through the third ignition hole 3151, the first ignition hole 31311, and the second ignition hole 321. Specifically, the flame holding ring 32 may include a flame holding ring body 322, at least a portion of an outer circumferential wall of the flame holding ring body 322 is fitted with the ignition hole portion 3131, and a plurality of second ignition holes 321 are arranged on the portion of the outer circumferential wall and in one-to-one communication with the plurality of first ignition holes 31311, thereby facilitating the setting of the outer ring ignition needle 5 in the area for ignition. And, the flame holder 32 may further include a flame holder connection part 323 connected to the top of the flame holder body 322, the flame holder connection part 323 extending outward in a radial direction of the flame holder 32 to abut against the top of the distributor inner wall 313. The top of the flame holder connection portion 323 has a first inclined surface 3231 and a second inclined surface 3232, the first inclined surface 3231 being configured to be flush with an inner peripheral surface of an outer flame cover 62 (which will be described in detail later) of the flame cover assembly 6, and the second inclined surface 3232 being matched with an inner end bottom surface of the outer flame cover 62, so that the flame holder connection portion 323 can be fully engaged with an inner peripheral edge of the outer flame cover 62. More preferably, the flame holding ring main body 322 and the distributor inner wall 313 are fixed by caulking, and the first ignition hole 31311, the second ignition hole 321 and the third ignition hole 3151 are integrally formed in the ignition hole portion 3131, the flame holding ring main body 322 and the ignition extension portion 315 by drilling after caulking. The flame stabilizing ring main body 322 is made of copper, the flame divider main body 31 is made of aluminum, so that the copper usage amount of the flame stabilizing ring main body 322 can be reduced, the processing difficulty is low, the wall thickness of the aluminum flame divider main body 31 can be utilized, the length of a fire hole is long enough, flame can not be generated, the cost can be further reduced, and the gas quantity flowing through the ignition hole is increased.

According to one exemplary embodiment of the distributor baffle 33, as shown in fig. 2 and 3, the distributor baffle 33 is disposed between the first distributor inlet 3121 and the first ignition holes 31311, so that the flow rate of the gas can be reduced during its entry into the first ignition holes 31311 via the distributor mixing chamber 311 via the first distributor inlet 3121, resulting in a more uniform flame at the second ignition holes 321. Specifically, the distributor baffle 33 is connected to the distributor inner wall 313 and extends in the distributor mixing chamber 311 along the horizontal direction from the distributor inner wall 313, and the distributor baffle 33 is further staggered from the distributor bottom wall 312 along the vertical direction, so that a gap between the distributor bottom wall 312 and the distributor baffle 33 along the vertical direction can be generated for gas to flow through. Further, the vertically projected portions of the distributor baffle 33 and the distributor bottom wall 312 have a gap, that is, the distributor baffle 33 and the distributor bottom wall 312 have a gap therebetween when viewed downward in the axial direction of the distributor body 31, so that the flow area of the gas between the distributor baffle 33 and the distributor bottom wall 312 can be slightly increased, thereby further slowing down the flow rate of the gas. Preferably, the gap is 2mm to 5mm. Preferably, the distributor baffle 33 is integrally formed on the distributor body 31.

According to one exemplary embodiment of the fire cover assembly 6, as shown in fig. 1-3, the fire cover assembly 6 may include an inner fire cover 61 covering the top opening of the second inner annular chamber 2112 and an outer fire cover 62 covering the top opening of the distributor mixing chamber 311.

Fig. 4 shows an inner fire cover 61 of a burner of an embodiment of the present utility model. As shown in connection with fig. 3 and 4, the inner fire cover 61 may include an inner fire cover body 611 and a shielding portion 612. The inner fire cover main body 611 includes an inner fire cover inner wall 6111, an inner fire cover top wall 6112 and an inner fire cover outer wall 6113, which enclose an annular or nearly annular inner fire cover cavity 6114 forming a bottom opening and are respectively located at the inner side, the top side and the outer side of the inner fire cover cavity 6114. The inner fire cover top wall 6112 is provided with a plurality of fire groove groups 61121 at intervals, one side of the inner fire cover inner wall 6111, which is close to the inner fire cover top wall 6112, is provided with a plurality of auxiliary fire holes 61111, and the gas in the inner fire cover cavity 6114 can be relieved after the oil stains block all the fire groove groups 61121 through the auxiliary fire holes 61111, so that the gas at the auxiliary fire holes 61111 can be normally combusted when the gas at the fire groove groups 61121 is normally combusted. The shielding portion 612 is disposed on a side of the plurality of auxiliary fire holes 61111 near the inner fire cover top wall 6112 (above the plurality of auxiliary fire holes 61111 of the inner fire cover inner wall 6111 shown in fig. 3) and is connected to the inner fire cover inner wall 6111, and the auxiliary fire holes 61111 can be blocked by oil stains from above the inner fire cover top wall 6112 through the shielding portion 612. The inner flame cover outer wall 6113 is connected to the outer periphery of the inner flame cover top wall 6112 and is disposed corresponding to the inner flame cover inner wall 6111, and the flame groove group 61121 of the inner flame cover top wall 6112 extends from the inner flame cover inner wall 6111 to the inner flame cover outer wall 6113 along the inner flame cover top wall 6112.

According to an exemplary embodiment of the inner flame cover inner wall 6111, as shown in fig. 4, the inner flame cover inner wall 6111 includes a first region 61112 extending at least a portion along a circumferential direction thereof, and a plurality of auxiliary flame holes 61111 are arranged at equal intervals along the circumferential direction of the first region 61112, so that the plurality of auxiliary flame holes 61111 can be concentrated in a portion of the first region 61112 of the inner flame cover inner wall 6111, facilitating protection of the auxiliary flame holes 61111 by a shielding portion 612 of a smaller length. So that the shield 612 may be disposed in the first region 61112 and extend radially inward of the inner fire cover inner wall 6111 from the inner fire cover inner wall 6111. Further, the shielding part 612 may include a first end and a second end disposed along a radial extension of the inner fire cover body 611, wherein the first end is close to the center of the inner fire cover body 611 and has a length smaller than that of the second end, so that the shielding part 612 is configured in a fan-shaped structure, thereby minimizing a blocking effect on gas flowing through the center of the inner fire cover body 611, and protecting the plurality of auxiliary fire holes 61111.

According to a further exemplary embodiment of the inner fire cover 61, as shown in fig. 4, the inner fire cover 61 may further comprise a first baffle 613 extending inwardly from the bottom of the inner fire cover wall 6111, the first baffle 613 being provided with a first through hole 6131 for air to pass through. The first baffle 613 is further provided with a second through hole 6132 through which the inner ring ignition needle 4 passes. The projections of the second through holes 6132, the first through holes 6131 and the shielding part 612 on the first baffle 613 are staggered, so that the interference of the inner ring ignition needle 4 and the shielding part 612 is avoided, and a sufficient flow area is reserved for the circulation of air. When the burner is applied to a pot having a relatively sharp bottom, the first baffle 613 can withstand and prevent the bottom from burning the base body 21 and the like by pressing the inner ring flame against the base assembly 2.

According to an exemplary embodiment of the flame groove set 61121, as shown in fig. 4, the flame groove set 61121 includes a main flame groove 611211 and a flame stabilizing groove 611212 which are parallel and respectively extend from the inner flame cover inner wall 6111 to the inner flame cover outer wall 6113, wherein the width of the main flame groove 611211 is larger than the width of the flame stabilizing groove 611212, so that the problem of the flame lift of the inner ring flame can be solved.

In embodiments of the present utility model, the term "plurality" refers to two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the present specification, the terms "one embodiment," "a preferred embodiment," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model and is not intended to limit the embodiment of the present utility model, and various modifications and variations can be made to the embodiment of the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims (10)

1. A distributor assembly, the distributor assembly comprising:

The distributor comprises a distributor main body (31), wherein the distributor main body (31) is provided with an annular distributor mixing cavity (311) and comprises a distributor inner wall (313) arranged on the inner side of the distributor mixing cavity (311), the distributor inner wall (313) is provided with a plurality of first ignition holes (31311), and

The flame stabilizing ring (32), the flame stabilizing ring (32) is connected to the distributor inner wall (313), and has an overlapping portion with the distributor inner wall (313), and the flame stabilizing ring (32) is provided with second ignition holes (321) which are communicated with the first ignition holes (31311) one by one corresponding to the overlapping portion.

2. The distributor assembly of claim 1, wherein the distributor inner wall (313) comprises an ignition hole portion (3131) extending at least partially along a circumferential direction thereof, the plurality of first ignition holes (31311) being equally spaced apart from the ignition hole portion (3131) along the circumferential direction of the distributor inner wall (313).

3. The flame divider assembly of claim 2, wherein the flame holding ring (32) includes a flame holding ring main body (322), at least a portion of an outer peripheral wall of the flame holding ring main body (322) is fitted with the ignition hole portion (3131), and the plurality of second ignition holes (321) are arranged on the portion of the outer peripheral wall and are in one-to-one communication with the plurality of first ignition holes (31311).

4. A distributor assembly according to claim 3, wherein the flame holding ring (32) further comprises a flame holding ring connection (323) connected to the top of the flame holding ring body (322), the flame holding ring connection (323) extending radially outwards of the flame holding ring (32) to abut the top of the distributor inner wall (313).

5. The distributor assembly of claim 4, wherein a top of the flame holder connection (323) has a first inclined surface (3231) and a second inclined surface (3232), the first inclined surface (3231) being configured to be flush with an inner peripheral surface of an outer fire cover, the second inclined surface (3232) being mated with an inner end bottom surface of the outer fire cover.

6. The distributor assembly according to any one of claims 3 to 5, wherein the distributor body (31) further comprises an ignition extension (315) integrally formed with the ignition hole portion (3131), the ignition extension (315) extending radially of the distributor body (31) into the distributor mixing chamber (311), the ignition extension (315) being provided with a third ignition hole (3151) penetrating the first ignition hole (31311).

7. The distributor assembly according to claim 6, wherein the flame holder body (322) and the distributor inner wall (313) are fixed by riveting, and the first ignition hole (31311), the second ignition hole (321) and the third ignition hole (3151) are integrally formed in the ignition hole portion (3131), the flame holder body (322) and the ignition extension portion (315) by post-riveting drilling.

8. The distributor assembly of claim 7, wherein the third ignition hole (3151), the first ignition hole (31311), and the second ignition hole (321) are in communication in sequence and extend obliquely upward in the gas flow direction.

9. A burner for a gas turbine, which burner comprises a burner body, characterized by comprising the following steps:

The distributor assembly according to any one of claims 1 to 8, the distributor bottom wall (312) of the distributor body being formed with a first distributor inlet (3121) and a second distributor inlet (3122);

a base assembly comprising a base body formed with a first base outlet in communication with the first distributor inlet (3121) and a second base outlet in communication with the second distributor inlet (3122), the base body further being provided with at least one air inlet pipe extending outwardly, and

The injection pipe assembly comprises at least one injection pipe main body corresponding to the air inlet pipes one by one.

10. The burner according to claim 9, further comprising an outer ring ignition needle (5), wherein a needle tip of the outer ring ignition needle (5) is correspondingly arranged at the second ignition hole (321).