Central fire cover and combustor

Abstract

The center fire cover comprises a fire cover body with a lower opening, a discharge protrusion arranged on a top plate of the fire cover body and extending in the radial direction and a plurality of combustion holes distributed around the circumference, the discharge protrusion is located above the combustion holes, and the combustion holes in the lower portion of the discharge protrusion are ignition combustion holes. The edge of a top plate of the fire cover body is provided with a liquid blocking and distributing protrusion, and the liquid blocking and distributing protrusion and the discharging protrusion are adjacent or intersect. The discharging protrusion and the liquid blocking and shunting protrusion adjacent to the discharging protrusion are arranged, the discharging protrusion is located above the ignition combustion hole, the liquid blocking and shunting protrusion prevents liquid from flowing to the discharging protrusion, the liquid is effectively prevented from entering the ignition combustion hole, and it is guaranteed that ignition is accurate and rapid.

Description

Technical Field

[0001] The utility model relates to a stove burner. Background Art

[0002] The current existing technology, Chinese patent 202011107983.0, an ignition protection device for a stove, includes a stove shell, a burner, a liquid tray and an ignition protection device, the burner includes a fire cover with a fire hole, the outer wall of the fire cover is provided with a discharge boss located below the fire hole, the ignition protection device includes a lighting mechanism and an ignition mechanism, the lighting mechanism is installed on the stove shell or the liquid tray and is located on the outside of the burner, the ignition mechanism has an ignition electrode, one end of the ignition electrode is arranged on the lighting mechanism, and the other end extends to the vicinity of the discharge boss and is located below the fire hole. The problem is that the fire hole is located above the discharge boss, and the liquid falling on the top of the fire cover flows down and enters the fire hole, making ignition difficult. Utility Model Content

[0003] The utility model aims to provide a central fire cover which has the characteristics of preventing liquid from entering the combustion hole and enabling reliable ignition.

[0004] The utility model is implemented as follows: a central fire cover, which is special in that it includes a fire cover body with a lower opening, a discharge protrusion arranged on the top plate of the fire cover body and extending radially, and a plurality of combustion holes distributed around the circumference, the discharge protrusion is located above the combustion hole, the combustion hole below the discharge protrusion is an ignition hole, and a liquid blocking diversion protrusion is arranged on the edge of the top plate of the fire cover body, and the liquid blocking diversion protrusion and the discharge protrusion are adjacent to or intersecting.

[0005] The central fire cover is special in that the liquid blocking and diverting protrusion is in an arc shape.

[0006] The central fire cover is special in that the main cover body is cylindrical with a lower opening and extends radially to form an annular eaves plate, the discharge protrusion is connected to the annular eaves plate, and the flow diversion and baffle protrusion is provided on the annular eaves plate.

[0007] The central fire cover is special in that the discharge protrusion is triangular in shape and has rounded corners.

[0008] The central fire cover is special in that the ignition combustion hole, the combustion hole on the clockwise side and the combustion hole on the counterclockwise side are connected through the ignition groove.

[0009] The central fire cover is special in that it also includes a central tube with a lower opening and an annular flame stabilizing groove, the central tube and the fire cover body form an annular combustion chamber, the annular combustion chamber is provided with a flame stabilizing combustion chamber, a middle combustion chamber and an upper buffer chamber from bottom to top, the upper part of the circumferential wall of the fire cover body is a truncated cone-shaped part, and the lower part is a cylindrical part;

[0010] The combustion hole has an air inlet end connected to the middle combustion chamber and an air outlet end located at the upper part of the truncated cone-shaped portion;

[0011] The annular flame stabilizing groove is arranged at the lower part of the truncated cone-shaped portion and is communicated with the flame stabilizing combustion chamber.

[0012] The central fire cover is special in that: the ignition and combustion holes are three and distributed in an inverted triangle, and the diameter of the ignition and combustion hole is smaller than the diameter of the combustion hole.

[0013] The central fire cover is special in that the upper end of the central tube passes through the top plate of the fire cover body, a protective cover with an upper opening is provided on the inner side of the flow diversion and baffle protrusion, and radial heat dissipation ventilation grooves are provided on the protective cover.

[0014] The central fire cover is special in that it also includes a central tube with a lower opening and an annular flame stabilizing groove, the central tube and the fire cover body form an annular combustion chamber, and the annular combustion chamber is provided with a flame stabilizing combustion chamber, a middle combustion chamber and an upper buffer chamber from bottom to top;

[0015] The annular flame stabilizing groove is communicated with the flame stabilizing combustion chamber.

[0016] A burner is special in that it comprises an ignition needle and the above-mentioned central fire cover, and a discharge protrusion is spaced from the ignition needle in a horizontal plane.

[0017] The utility model discloses a central fire cover, a discharge protrusion and a liquid blocking and diverting protrusion adjacent to the discharge protrusion are arranged, the discharge protrusion is located above the ignition combustion hole, the liquid blocking and diverting protrusion prevents liquid from flowing to the discharge protrusion, effectively avoids liquid from entering the ignition combustion hole, and ensures accurate and rapid ignition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model.

[0019] Figure 2 It is a stereogram of the utility model.

[0020] Figure 3 It is one of the three-dimensional diagrams of the second embodiment of the utility model.

[0021] Figure 4 This is the second stereogram of the second embodiment of the utility model.

[0022] Figure 5 It is a cross-sectional view of a second embodiment of the present utility model.

[0023] Figure 6 It is a cross-sectional view of a third embodiment of the present utility model.

[0024] Figure 7 It is a three-dimensional diagram of a third embodiment of the present utility model.

[0025] Figure 8 It is a top view of a fourth embodiment of the present utility model.

[0026] Fig. 9 yes Figure 8 A-A view of.

[0027] Fig.10 yes Figure 8 B-B view.

[0028] Fig.11 It is a three-dimensional diagram of a fourth embodiment of the present utility model.

[0029] Fig.12 It is a three-dimensional diagram of a fifth embodiment of the present utility model.

[0030] Fig.13 It is a cross-sectional view of a fifth embodiment of the present utility model.

[0031] Fig.14 It is a top view of the burner of the utility model. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1 , Figure 2As shown, a central fire cover comprises a fire cover body 1 with a lower opening, a discharge protrusion 2 provided on the top plate of the fire cover body 1 and extending radially, and a plurality of combustion holes 3 distributed around the circumference, wherein the discharge protrusion 2 is located above the combustion hole 3, and the combustion hole 3 below the discharge protrusion 2 is an ignition hole combustion hole, and a liquid blocking diversion protrusion 4 is provided on the edge of the top plate of the fire cover body 1, and the liquid blocking diversion protrusion 4 and the discharge protrusion 2 are adjacent to or intersecting. With the provision of the liquid blocking diversion protrusion 4, the liquid falling on the top plate of the fire cover body bypasses the ignition hole combustion hole below the discharge protrusion 2, thereby preventing the ignition hole combustion hole from being blocked, resulting in unsmooth ignition or failure to ignite, thereby improving safety performance.

[0036] As a further improvement of the present utility model: the liquid blocking and diverting protrusion 4 is in an arc shape.

[0037] The discharge protrusion 2 is triangular in shape and has a rounded top corner, and the intersection between the discharge protrusion 2 and the fire cover body 1 is rounded.

[0038] Example 2

[0039] like Figure 1 , Figure 2 As shown, the main cover body 1 is in the shape of a cylinder with an opening at the bottom, and the top plate extends radially to form an annular eaves plate 11, the discharge protrusion 2 is connected to the annular eaves plate 11, and the flow dividing and blocking protrusion 4 is arranged on the annular eaves plate 11. The setting of the annular eaves plate 11 prevents the liquid flowing down from the top plate from clogging the combustion hole 3.

[0040] Example 3

[0041] like Figure 3 , Figure 4 As shown, the ignition combustion hole, the combustion hole 3 on the clockwise side of the ignition combustion hole and the combustion hole 3 on the counterclockwise side are connected through the ignition groove 31. With such a design, rapid ignition is achieved.

[0042] Example 4

[0043] like Figure 8 , Fig. 9 As shown, it also includes a central tube 5 with a lower opening and an annular flame stabilizing groove 6. The central tube 5 and the fire cover body 1 form an annular combustion chamber. The annular combustion chamber is provided with a flame stabilizing combustion chamber 121, a middle combustion chamber 122 and an upper buffer chamber 123 from bottom to top. The upper part of the circumferential wall of the fire cover body 1 is a truncated cone-shaped part, and the lower part is a cylindrical part.

[0044] The combustion hole 3 has an air inlet end connected to the middle combustion chamber 122 and an air outlet end located at the upper part of the truncated cone-shaped portion;

[0045] The annular flame stabilizing groove 6 is disposed at the lower portion of the truncated cone-shaped portion and is communicated with the flame stabilizing combustion chamber 121 .

[0046] As a further improvement of this embodiment: Fig.11As shown, there are three ignition and combustion holes distributed in an inverted triangle, and the diameter of the ignition and combustion hole is smaller than the diameter of the combustion hole 3.

[0047] Example 5

[0048] On the basis of Example 2, Figure 6 , Figure 7 As shown, it also includes a central tube 5 with a lower opening and an annular flame stabilizing groove 6. The central tube 5 and the fire cover body 1 form an annular combustion chamber. The annular combustion chamber is provided with a flame stabilizing combustion chamber 121, a middle combustion chamber 122 and an upper buffer chamber 123 from bottom to top.

[0049] The air inlet end of the combustion hole 3 is connected to the middle combustion chamber 122, and the air outlet end is located in the middle of the circumferential wall plate of the fire cover body 1. The annular flame stabilizing groove 6 is arranged at the lower part of the circumferential wall plate of the fire cover body 1 and is connected to the flame stabilizing combustion chamber 121.

[0050] Example 6

[0051] like Fig.12 , Fig.13 As shown, the upper end of the central tube 5 passes through the top plate of the fire cover body 1, and a protective cover 7 with an upper opening is provided on the inner side of the flow diversion and baffle protrusion 4, and radial heat dissipation ventilation grooves 71 are provided on the protective cover 7.

[0052] Example 7

[0053] like Fig.14 As shown, a burner comprises an ignition needle 8 and a center fire cover, and a distance L is left between the discharge protrusion 2 and the ignition needle 8 in a horizontal plane.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A center fire cover, characterized in that: It includes a fire cover body with a lower opening, a discharge protrusion arranged on the top plate of the fire cover body and extending radially, and a plurality of combustion holes distributed around the circumference. The discharge protrusion is located above the combustion hole, and the combustion hole below the discharge protrusion is an ignition combustion hole. A liquid blocking and diversion protrusion is arranged on the edge of the top plate of the fire cover body, and the liquid blocking and diversion protrusion and the discharge protrusion are adjacent to or intersecting.

2. A center fire cover according to claim 1, characterized in that: The liquid blocking and diverting protrusion is in an arc shape.

3. A center fire cover according to claim 1, characterized in that: The fire cover body is in the shape of a cylinder with an opening at the bottom, and the top plate extends radially to form an annular eaves plate. The discharge protrusion is connected to the annular eaves plate, and the flow diversion and baffle protrusion is arranged on the annular eaves plate.

4. A center fire cover according to claim 1, characterized in that: The discharge protrusion is triangular in shape and has rounded top corners.

5. A center fire cover according to claim 1, characterized in that: The ignition combustion hole, the combustion hole on the clockwise side and the combustion hole on the counterclockwise side are connected through the ignition groove.

6. A center fire cover according to claim 1, 2 or 4, characterized in that: It also includes a central tube with a lower opening and an annular flame stabilizing groove. The central tube and the fire cover body form an annular combustion chamber. The annular combustion chamber is provided with a flame stabilizing combustion chamber, a middle combustion chamber and an upper buffer chamber from bottom to top. The upper part of the circumferential wall of the fire cover body is a truncated cone-shaped part, and the lower part is a cylindrical part. The air inlet end of the combustion hole is connected to the middle combustion chamber, and the air outlet end is located at the upper part of the truncated cone-shaped portion; The annular flame stabilizing groove is arranged at the lower part of the truncated cone-shaped portion and is communicated with the flame stabilizing combustion chamber.

7. A center fire cover according to claim 6, characterized in that: The number of the ignition and combustion holes is three and they are distributed in an inverted triangle shape, and the diameter of the ignition and combustion holes is smaller than the diameter of the combustion holes.

8. A center fire cover according to claim 7, characterized in that: The upper end of the central tube passes through the top plate of the fire cover body, and a protective cover with an upper opening is arranged on the inner side of the liquid blocking and diverting protrusion, and radial heat dissipation ventilation grooves are arranged on the protective cover.

9. A center fire cover according to claim 3, characterized in that: It also includes a central tube with a lower opening and an annular flame stabilizing groove. The central tube and the fire cover body form an annular combustion chamber. The annular combustion chamber is provided with a flame stabilizing combustion chamber, a middle combustion chamber and an upper buffer chamber from bottom to top. The annular flame stabilizing groove is communicated with the flame stabilizing combustion chamber.

10. A burner, characterized in that: The utility model comprises an ignition needle and a center fire cover as claimed in any one of claims 1 to 9, wherein the discharge protrusion is spaced from the ignition needle in a horizontal plane.

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