CN215062061U - Fire lid subassembly and combustor - Google Patents
Fire lid subassembly and combustor Download PDFInfo
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- CN215062061U CN215062061U CN202120686082.5U CN202120686082U CN215062061U CN 215062061 U CN215062061 U CN 215062061U CN 202120686082 U CN202120686082 U CN 202120686082U CN 215062061 U CN215062061 U CN 215062061U
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Abstract
The utility model belongs to the technical field of the combustor technique and specifically relates to a fire lid subassembly and combustor is related to alleviate current big fire lid and little fire lid components of a whole that can function independently structure and drop easily or install not in place, and then cause the risk of damaging or producing the tempering. The fire lid assembly includes: an upper shell, a lower shell and a partition shell; the upper shell and the lower shell are combined to form a gas cavity, the separation shell is arranged in the gas cavity and separates the gas cavity into an internal gas cavity and an external gas cavity, the internal gas cavity is arranged between the upper shell and the separation shell, and the external gas cavity is arranged between the lower shell and the separation shell; the inner gas cavity is provided with an inner fire hole communicated with the outside, and the outer gas cavity is provided with an outer fire hole communicated with the outside. The utility model provides a technical scheme easily processes, low in manufacturing cost, and weight is lighter, and a body structure makes fire lid subassembly wholeness good, has avoided the tempering risk, and the security that the combustor used has obtained the assurance.
Description
Technical Field
The utility model belongs to the technical field of the combustor technique and specifically relates to a fire lid subassembly and combustor are related to.
Background
The existing burner generally comprises a burner below a table board and a fire cover assembly above the table board, wherein the fire cover assembly generally comprises a large fire cover, a small fire cover and a gas distribution disc at the bottom, the large fire cover and the small fire cover are generally formed by copper alloy through die-casting, and the gas distribution disc is formed by aluminum alloy through die-casting.
The fire cover assembly is formed by die-casting copper alloy and aluminum alloy, the manufacturing cost is high, the weight is large, the split structure of the large fire cover and the small fire cover is easy to drop or is not installed in place, the damage or the tempering risk is caused, the air distribution disc of the aluminum alloy is easy to melt when the tempering occurs, and the potential safety hazard is brought to the use of the combustor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire lid subassembly and combustor to alleviate current big fire lid and little fire lid components of a whole that can function independently structure and drop easily or install not in place, and then cause the risk of damaging or producing the tempering.
In order to solve the technical problem, the utility model provides a technical scheme lies in:
in a first aspect, the present invention provides a fire cover assembly, including: an upper shell, a lower shell and a partition shell;
the upper shell and the lower shell are combined to form a gas cavity, the separation shell is arranged in the gas cavity and separates the gas cavity into an internal gas cavity and an external gas cavity, the internal gas cavity is arranged between the upper shell and the separation shell, and the external gas cavity is arranged between the lower shell and the separation shell;
the inner combustion air cavity is provided with an inner fire hole communicated with the outside, and the outer combustion air cavity is provided with an outer fire hole communicated with the outside.
In a still further aspect of the present invention,
the upper shell comprises an upper top plate and a connecting ring which extends downwards from the middle of the upper top plate, and a plurality of inner fire holes communicated with the inner fire air cavity are uniformly distributed in the connecting ring along the circumferential direction.
In a still further aspect of the present invention,
the partition shell comprises an integrally formed panel, a side plate and a lower bottom plate, the panel is in a box shape with an upward opening, the panel is attached to the lower surface of the upper top plate, the side plate extends downwards from the middle of the panel to form, the lower bottom plate is provided with a through hole and an air inlet hole, the connecting ring extends into the through hole, and the air inlet hole is communicated with the internal combustion air cavity.
In a still further aspect of the present invention,
the bottom of the lower shell is respectively provided with a first inlet, a connecting port and a second inlet, the first inlet is communicated with the outer gas cavity, the connecting port is arranged in the middle of the bottom surface of the lower shell, the connecting ring is connected to the connecting port, and the second inlet is communicated with the gas inlet of the separation shell.
In a still further aspect of the present invention,
the lower shell comprises a box body and an annular skirt edge connected above the box body, the upper surface of the annular skirt edge and the lower surface of the upper top plate form a gap communicated with the atmosphere and the outer gas cavity at intervals, a supporting structure is formed on at least one of the upper shell, the lower shell and the separating shell, and the supporting structure is used for dividing the gap into a plurality of outer gas holes distributed along the circumferential direction of the annular skirt edge.
In a still further aspect of the present invention,
the supporting structure comprises a plurality of first bosses which are arranged on the upper surface of the annular skirt edge along the circumferential direction, and the upper top plate and the adjacent first bosses are clamped to form a plurality of outer fire holes.
In a still further aspect of the present invention,
the supporting structure comprises a plurality of second bosses which are arranged on the edge of the upper top plate along the circumferential direction, and a plurality of outer fire holes are formed between the second bosses and the upper surface of the annular skirt edge in a clamping mode.
In a still further aspect of the present invention,
the supporting structure comprises a plurality of first bosses and a plurality of second bosses, the first bosses are circumferentially arranged on the upper surface of the annular skirt edge, the second bosses are circumferentially arranged on the edge of the upper top plate, and the first bosses and the second bosses are clamped to form a plurality of outer fire holes.
In a still further aspect of the present invention,
the supporting structure comprises a plurality of third bosses which are arranged at the edge of the separation shell along the circumferential direction, and a plurality of outer fire holes are formed between the annular skirt edge and the adjacent third bosses in a clamping mode.
In a still further aspect of the present invention,
the edge of the upper top plate is circumferentially provided with a blank holder extending towards the center of the upper top plate, the blank holder presses the lower shell to the upper top plate, and the outer surface of the upper top plate is provided with a plurality of outer fire holes.
In a second aspect, the utility model provides a burner, which comprises the fire cover component of the first aspect and a burner head component,
the burner assembly comprises a fixed disc and a small injection pipe and a large injection pipe which are fixedly connected with the fixed disc, the fire cover assembly is arranged above the fixed disc, a first inlet and a second inlet are respectively formed in the bottom of the lower shell, the outlet end of the small injection pipe is inserted into the second inlet, and the outlet end of the large injection pipe is inserted into the first inlet.
The embodiment of the utility model provides a following beneficial effect has been brought:
because the utility model provides a fire lid subassembly, include: an upper shell, a lower shell and a partition shell; the upper shell and the lower shell are combined to form a gas cavity, the separation shell is arranged in the gas cavity and separates the gas cavity into an internal gas cavity and an external gas cavity, the internal gas cavity is arranged between the upper shell and the separation shell, and the external gas cavity is arranged between the lower shell and the separation shell; the inner gas cavity is provided with an inner fire hole communicated with the outside, and the outer gas cavity is provided with an outer fire hole communicated with the outside.
This application adopts high temperature resistant metal material stamping such as stainless steel to become epitheca, inferior valve and partition shell, connects the three again and forms wholly. The technical scheme of this application easily processes, low in manufacturing cost, and weight is lighter, and an organic whole structure makes fire lid subassembly wholeness good, has avoided the risk of tempering, and the security that the combustor used has obtained the assurance.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an overall schematic view of a fire cover assembly according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the upper fold of the lower shell flange of the fire lid assembly provided by an embodiment of the present invention;
fig. 3 is a partial enlarged view of a portion a in fig. 2 according to an embodiment of the present invention;
fig. 4 is an exploded view of a fire lid assembly according to an embodiment of the present invention;
fig. 5 is a partially enlarged view of a supporting structure provided in a lower case according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of the lower shell flange of the fire lid assembly turned down according to an embodiment of the present invention;
fig. 7 is a schematic view of a non-press relationship between an upper shell blank holder and a partition shell according to an embodiment of the present invention;
fig. 8 is a cross-sectional view of a supporting structure disposed on a partition case according to an embodiment of the present invention;
fig. 9 is a partial enlarged view of the embodiment of the present invention provided in relation to B in fig. 8;
fig. 10 is a schematic view illustrating a connection between an upper case and a partition case according to an embodiment of the present invention;
fig. 11 is a partial enlarged view of fig. 10 at C according to an embodiment of the present invention;
fig. 12 is a schematic view of a supporting structure disposed on an upper shell according to an embodiment of the present invention;
fig. 13 is a partial enlarged view of fig. 12 at D according to an embodiment of the present invention;
fig. 14 is a schematic view of a supporting structure respectively disposed on an upper shell and a lower shell according to an embodiment of the present invention;
fig. 15 is a partial enlarged view of fig. 14 at E according to an embodiment of the present invention;
fig. 16 is a schematic view illustrating an outer fire hole formed on the surface of an upper top plate according to an embodiment of the present invention;
fig. 17 is a cross-sectional view of the embodiment of the present invention provided in connection with fig. 16;
fig. 18 is a schematic structural diagram of a burner according to an embodiment of the present invention.
Icon:
1-upper shell; 11-upper top plate; 12-a connecting ring; 13-pressing edges; 111-a second boss;
112-flame holes; 121-inner fire hole; 2-a lower shell; 21-a box body; 22-annular skirt;
211-connection port; 212-first inlet; 213-a second inlet; 221-a first boss;
2111-a first annular rim; 2121-a fifth annular flange; 2131-a fourth annular rim;
3-a separation shell; 31-a panel; 32-side plate; 33-lower bottom plate; 311-a third boss;
312-avoidance hole; 331-a through hole; 332-inlet holes; 3311-a second annular flange;
3321-a third annular rim; 41-internal combustion gas chamber; 42-an external gas chamber; 421-outer fire hole;
51-fixed disk; 52-small injection pipe; 53-large injection pipe; 54-an ignition needle;
55-flame probe; 56-anti-dry heating probe.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict. Fig. 1 is an overall schematic view of a fire cover assembly according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the upper fold of the lower shell flange of the fire lid assembly provided by an embodiment of the present invention; fig. 3 is a partial enlarged view of a portion a in fig. 2 according to an embodiment of the present invention; fig. 4 is an exploded view of a fire lid assembly according to an embodiment of the present invention; fig. 5 is a partially enlarged view of a supporting structure provided in a lower case according to an embodiment of the present invention; FIG. 6 is a cross-sectional view of the lower shell flange of the fire lid assembly turned down according to an embodiment of the present invention; fig. 7 is a schematic view of a non-press relationship between an upper shell blank holder and a partition shell according to an embodiment of the present invention; fig. 8 is a cross-sectional view of a supporting structure disposed on a partition case according to an embodiment of the present invention; fig. 9 is a partial enlarged view of the embodiment of the present invention provided in relation to B in fig. 8; fig. 10 is a schematic view illustrating a connection between an upper case and a partition case according to an embodiment of the present invention; fig. 11 is a partial enlarged view of fig. 10 at C according to an embodiment of the present invention; fig. 12 is a schematic view of a supporting structure disposed on an upper shell according to an embodiment of the present invention; fig. 13 is a partial enlarged view of fig. 12 at D according to an embodiment of the present invention; fig. 14 is a schematic view of a supporting structure respectively disposed on an upper shell and a lower shell according to an embodiment of the present invention; fig. 15 is a partial enlarged view of fig. 14 at E according to an embodiment of the present invention; fig. 16 is a schematic view illustrating an outer fire hole formed on the surface of an upper top plate according to an embodiment of the present invention;
fig. 17 is a cross-sectional view of the embodiment of the present invention provided in connection with fig. 16; fig. 18 is a schematic structural diagram of a burner according to an embodiment of the present invention.
Example one
The existing burner generally comprises a burner below a table board and a fire cover assembly above the table board, wherein the fire cover assembly generally comprises a large fire cover, a small fire cover and a gas distribution disc at the bottom, the large fire cover and the small fire cover are generally formed by copper alloy through die-casting, and the gas distribution disc is formed by aluminum alloy through die-casting.
The fire cover assembly is formed by die-casting copper alloy and aluminum alloy, the manufacturing cost is high, the weight is large, the split structure of the large fire cover and the small fire cover is easy to drop or is not installed in place, the damage or the tempering risk is caused, the air distribution disc of the aluminum alloy is easy to melt when the tempering occurs, and the potential safety hazard is brought to the use of the combustor.
In view of this, the embodiment of the present invention provides a fire cover assembly, please refer to fig. 1, which includes: an upper case 1, a lower case 2, and a partition case 3; the upper shell 1 and the lower shell 2 are combined to form a gas cavity, the separation shell 3 is arranged in the gas cavity and divides the gas cavity into an inner gas cavity 41 and an outer gas cavity 42, the inner gas cavity 41 is arranged between the upper shell 1 and the separation shell 3, and the outer gas cavity 42 is arranged between the lower shell 2 and the separation shell 3; the inner combustion air chamber 41 has an inner fire hole 121 communicating with the outside, and the outer combustion air chamber 42 has an outer fire hole 421 communicating with the outside.
The embodiment of the utility model provides a following beneficial effect has been brought:
this application adopts high temperature resistant metal material stamping such as stainless steel to become epitheca 1, inferior valve 2 and partition shell 3, connects the formation wholly with the three again. The technical scheme of this application easily processes, low in manufacturing cost, and weight is lighter, and an organic whole structure makes fire lid subassembly wholeness good, has avoided the risk of tempering, and the security that the combustor used has obtained the assurance.
The structural composition and characteristics of the upper case 1 are specifically described as follows:
the upper shell 1 comprises an upper top plate 11 and a connecting ring 12 formed by extending downwards from the middle of the upper top plate 11, a plurality of inner flame holes 121 communicated with the inner flame chamber 41 are uniformly distributed on the connecting ring 12 along the circumferential direction, and the upper top plate 11 is further provided with a plurality of flame connecting holes 112 so as to transmit inner flames at the inner flame holes 121 to outer flames at the outer flame holes 421.
Furthermore, the upper shell 1 is formed by punching a metal plate, the upper top plate 11 is disc-shaped, the connecting ring 12 is bell mouth-shaped, and the edge of the upper top plate 11 is inclined upward by a certain angle, so that the air outlet direction of the outer fire hole 421 is inclined upward. In some embodiments, the edge of the upper top plate 11 is formed with a pressing edge 13 extending toward the center of the upper top plate 11 along the circumferential direction, and the pressing edge 13 presses the lower case 2 against the upper top plate 11. The pressing edge 13 can press the panel 31 of the partition shell 3 to prevent the gas of the inner gas cavity 41 from leaking to the outer gas cavity 42; the pressing edge 13 can also increase the strength of the upper shell 1 and prevent the thermal deformation of the outer fire hole 421 when heated by the flame.
The structural composition and characteristics of the partition case 3 are specifically described as follows:
the partition case 3 includes panel 31, curb plate 32 and lower plate 33 of integrative stamping forming, and panel 31, curb plate 32 and lower plate 33 are the ascending box-like of opening, and panel 31 laminates in the lower surface of last roof 11, and the hole 312 of dodging has been seted up on panel 31 surface, and curb plate 32 extends downwards from panel 31 middle part and forms, and lower plate 33 is provided with through-hole 331 and inlet port 332, and in connecting ring 12 stretched into through-hole 331, inlet port 332 and internal combustion air chamber 41 intercommunication.
Further, the fixing and sealing of the lower plate 33 and the connection ring 12 can be achieved by welding the gap between the through hole 331 and the connection ring 12, and the edge of the through hole 331 can also be formed with a second annular flange 3311 for positioning and fixing. The circumferential edge of the air inlet holes 332 extends downwards to form a second annular flange 3311 and a third annular flange 3321, the second annular flange 3311 is inserted into the second inlet 213, and the two are connected by welding; or a fourth annular rim 2131 may be formed at the circumferential edge of the second inlet 213, and the second annular rim 3311 is inserted into the fourth annular rim 2131 and connected thereto by welding.
The structural composition of the lower case 2 and its features are specifically described as follows:
the bottom of the lower shell 2 is respectively provided with a first inlet 212, a connecting port 211 and a second inlet 213, the first inlet 212 is communicated with the external gas chamber 42, the connecting port 211 is arranged in the middle of the bottom surface of the lower shell 2, the connecting ring 12 is connected to the connecting port 211 in a welding mode, and the second inlet 213 is communicated with the air inlet 332 of the separation shell 3. The circumferential edge of the connection port 211 may extend upward to form a first annular rim 2111, and the connection ring 12 is inserted into the first annular rim 2111. The circumferential edge of the first inlet 212 may extend upward or downward to form a fifth annular flange 2121 for connecting with an injection pipe of the burner assembly.
Specifically, inferior valve 2 adopts sheet metal stamping forming, including box body 21 and the annular skirt 22 of connecting in the box body 21 top, the upper surface of annular skirt 22 and the lower surface interval of last roof 11 form the clearance of intercommunication atmosphere and outer gas chamber 42, at least at last shell 1, inferior valve 2, the shaping of separating shell 3 has bearing structure, and bearing structure is used for separating the clearance into a plurality of outer fire holes 421 along annular skirt 22 circumference distribution.
Various arrangements of the fire lid assembly and support structure are described in detail below:
in a first mode, referring to fig. 1 to 5, the supporting structure includes a plurality of first bosses 221 circumferentially disposed on the upper surface of the annular skirt 22, and a plurality of outer fire holes 421 are formed between the upper top plate 11 and the adjacent first bosses 221 in a sandwiched manner.
Further, the upper surface of the first boss 221 abuts against the flange 13 of the upper case 1. Of course, to prevent the annular skirt 22 from deforming at high temperatures, the first bosses 221 may also be spot welded to the beads 13 at the edges.
Referring to fig. 6, the difference between the first mode and the second mode is that the first annular rim 2111, the fifth annular rim 2121 and the fourth annular rim 2131 are all formed to extend downward.
In a third mode, referring to fig. 7, the panel 31 of the partition case 3 has a smaller size and is not connected to the edge pressing 13 of the upper case 1, and the panel 31 is connected to the lower surface of the upper top plate 11 by welding or gluing.
In a fourth mode, referring to fig. 8 to 11, the supporting structure includes a plurality of third bosses 311 circumferentially disposed on the edge of the partition case 3, and a plurality of outer fire holes 421 are formed between the annular skirt 22 and the adjacent third bosses 311. The edge of the upper top plate 11 is reversely bent to form a blank holder 13, the edge of the panel 31 is positioned at the inner side of the blank holder 13, and the two are connected in a spot welding mode.
In a fifth mode, referring to fig. 12 and 13, the supporting structure includes a plurality of second bosses 111 circumferentially disposed on the edge of the upper top plate 11, the surface of the annular skirt 22 is a smooth surface, and a plurality of outer fire holes 421 are formed between the second bosses 111 and the upper surface of the annular skirt 22.
In a sixth mode, referring to fig. 14 and 15, the support structure includes a plurality of first bosses 221 circumferentially disposed on the upper surface of the annular skirt 22 and a plurality of second bosses 111 circumferentially disposed on the edge of the upper top plate 11, and a plurality of outer fire holes 421 are formed between the first bosses 221 and the second bosses 111.
In a seventh mode, referring to fig. 16 and 17, a plurality of outer fire holes 421 are formed in the outer surface of the upper top plate 11.
Example two
The embodiment of the utility model provides a combustor, including the fire lid subassembly that embodiment one mentioned, still include the furnace end subassembly.
Specifically, the burner assembly comprises a fixed disc 51, a small injection pipe 52 and a large injection pipe 53 which are fixedly connected to the fixed disc 51, the fire cover assembly is arranged above the fixed disc 51, a first inlet 212 and a second inlet 213 are respectively formed in the bottom of the lower shell 2, the outlet end of the small injection pipe 52 is inserted into the second inlet 213, and the outlet end of the large injection pipe 53 is inserted into the first inlet 212.
Further, the burner assembly further includes an ignition needle 54, a flame probe 55 and an anti-dry heating probe 56, and the ignition needle 54, the flame probe 55 and the anti-dry heating probe 56 are all sleeved in the hollow region of the connection ring 12 of the upper casing 1.
This application adopts high temperature resistant metal material stamping such as stainless steel to become epitheca 1, inferior valve 2 and partition shell 3, welds the three again and forms wholly. The technical scheme of this application easily processes, low in manufacturing cost, and weight is lighter, and an organic whole structure makes the wholeness of combustor good, and easily cleaning has avoided the risk of tempering, and the security that the combustor used has obtained the assurance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (11)
1. A fire lid assembly, comprising: an upper shell (1), a lower shell (2) and a partition shell (3);
the upper shell (1) and the lower shell (2) are combined to form a gas cavity, the partition shell (3) is arranged in the gas cavity and divides the gas cavity into an inner gas cavity (41) and an outer gas cavity (42), the inner gas cavity (41) is arranged between the upper shell (1) and the partition shell (3), and the outer gas cavity (42) is arranged between the lower shell (2) and the partition shell (3);
the inner gas chamber (41) has an inner fire hole (121) communicating with the outside, and the outer gas chamber (42) has an outer fire hole (421) communicating with the outside.
2. The fire lid assembly of claim 1,
the upper shell (1) comprises an upper top plate (11) and a connecting ring (12) formed by extending downwards from the middle of the upper top plate (11), and a plurality of inner fire holes (121) communicated with the inner combustion air cavity (41) are uniformly distributed in the connecting ring (12) along the circumferential direction.
3. The fire lid assembly of claim 2,
the partition shell (3) comprises an integrally formed panel (31), a side plate (32) and a lower bottom plate (33), the panel (31), the side plate (32) and the lower bottom plate (33) are box-shaped with an upward opening, the panel (31) is attached to the lower surface of the upper top plate (11), the side plate (32) extends downwards from the middle of the panel (31), the lower bottom plate (33) is provided with a through hole (331) and an air inlet hole (332), the connecting ring (12) extends into the through hole (331), and the air inlet hole (332) is communicated with the internal combustion air cavity (41).
4. The fire lid assembly of claim 3,
the bottom of the lower shell (2) is respectively provided with a first inlet (212), a connecting port (211) and a second inlet (213), the first inlet (212) is communicated with the outer gas cavity (42), the connecting port (211) is arranged in the middle of the bottom surface of the lower shell (2), the connecting ring (12) is connected to the connecting port (211), and the second inlet (213) is communicated with the gas inlet (332) of the separation shell (3).
5. The fire lid assembly of claim 3,
inferior valve (2) including box body (21) and connect in annular skirt border (22) above box body (21), the upper surface of annular skirt border (22) with the lower surface interval of last roof (11) forms the intercommunication atmosphere with the clearance of outer gas chamber (42), at least upper shell (1), inferior valve (2) one of partition shell (3) shaping has bearing structure, bearing structure is used for with the clearance is separated into a plurality of edges annular skirt border (22) circumference distributes outer fire hole (421).
6. The fire lid assembly of claim 5,
the supporting structure comprises a plurality of first bosses (221) arranged on the upper surface of the annular skirt (22) along the circumferential direction, and a plurality of outer fire holes (421) are formed between the upper top plate (11) and the adjacent first bosses (221) in a clamping mode.
7. The fire lid assembly of claim 5,
the supporting structure comprises a plurality of second bosses (111) arranged on the edge of the upper top plate (11) along the circumferential direction, and a plurality of outer fire holes (421) are formed between the second bosses (111) and the upper surface of the annular skirt (22) in a clamping mode.
8. The fire lid assembly of claim 5,
the supporting structure comprises a plurality of first bosses (221) arranged on the upper surface of the annular skirt (22) along the circumferential direction and a plurality of second bosses (111) arranged on the edge of the upper top plate (11) along the circumferential direction, and a plurality of outer fire holes (421) are formed between the first bosses (221) and the second bosses (111) in a clamping mode.
9. The fire lid assembly of claim 5,
the supporting structure comprises a plurality of third bosses (311) arranged at the edge of the separation shell (3) along the circumferential direction, and a plurality of outer fire holes (421) are formed between the annular skirt edge (22) and the adjacent third bosses (311) in a clamping mode.
10. The fire lid assembly of claim 2,
the edge of the upper top plate (11) is circumferentially provided with a blank holder (13) extending towards the center of the upper top plate (11), the blank holder (13) presses the lower shell (2) to the upper top plate (11), and the outer surface of the upper top plate (11) is provided with a plurality of outer fire holes (421).
11. A burner comprising the fire lid assembly of any one of claims 1-10, further comprising a burner assembly,
the burner assembly comprises a fixed disc (51), a small injection pipe (52) and a large injection pipe (53), the small injection pipe (52) and the large injection pipe (53) are fixedly connected to the fixed disc (51), the fire cover assembly is arranged above the fixed disc (51), a first inlet (212) and a second inlet (213) are respectively formed in the bottom of the lower shell (2), the outlet end of the small injection pipe (52) is inserted into the second inlet (213), and the outlet end of the large injection pipe (53) is inserted into the first inlet (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686082.5U CN215062061U (en) | 2021-04-02 | 2021-04-02 | Fire lid subassembly and combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686082.5U CN215062061U (en) | 2021-04-02 | 2021-04-02 | Fire lid subassembly and combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215062061U true CN215062061U (en) | 2021-12-07 |
Family
ID=79149801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120686082.5U Active CN215062061U (en) | 2021-04-02 | 2021-04-02 | Fire lid subassembly and combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215062061U (en) |
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2021
- 2021-04-02 CN CN202120686082.5U patent/CN215062061U/en active Active
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