Burner and stove burner

Abstract

The furnace end comprises a circular seat plate, a circular-ring-shaped central fire cover seat, a central injection pipe, an outer-ring gas groove, a supporting column seat, an axial gas channel, an outer-ring premixing cavity and an outer-ring injection pipe, and the circular-ring-shaped central fire cover seat comprises a central gas groove, a central radial air channel and an axial central gas channel; an air inlet hole is formed in a bottom plate of the outer ring gas groove, and a radial secondary air channel is formed by the circular arc-shaped flow guide plate, the flow equalizing non-return plate, the outer ring gas groove between the supporting column base and the axial gas channel and the circular base plate; the outer ring injection pipe, the outer ring premixing cavity, the axial gas channel and the gas inlet hole are communicated in sequence; the outer ring premixing cavity is communicated with the axial fuel gas channel, the volume of the outer ring premixing cavity is gradually increased from bottom to top, and the outer ring premixing cavity and the axial fuel gas channel rotate rightwards or leftwards. Due to the arrangement of the arc-shaped flow guide plate and the flow equalizing check plate on the outer ring fuel gas groove, fuel gas flows in one direction, the flow equalizing check plate enables the fuel gas to be evenly distributed and prevents backflow, and deflagration and flash combustion caused by uneven fuel gas distribution and backflow are eliminated.

Description

Technical Field

[0001] The utility model relates to a stove burner, in particular to a stove head. Background Art

[0002] At present, the existing technology, Chinese patent 201621366639.2, a burner burner head with a premixing chamber, includes a burner body, the burner body includes an ejector pipe part and a head, the head includes a disc, a central fire cover seat located on the upper surface of the disc, an outer ring gas groove seat located above the disc, an outer ring gas groove arranged on the outer ring gas groove seat, a central premixing chamber, an outer ring premixing chamber, an air guide channel and an arc-shaped support column that pass through the outer ring gas groove and the disc, the ejector part includes an inner ejector pipe and an outer ejector pipe, and the air inlet ends of the inner ejector pipe and the outer ejector pipe are respectively plugged with the horizontal part of the central premixing chamber and the air inlet interface on the outer ring premixing chamber. The existing problems are: the gas and air mixture in the outer ring gas groove is unevenly distributed, which is easy to produce deflagration; when the fire is turned off or the pipeline is cut off, the flash fire emits a sound. Utility Model Content

[0003] The utility model aims to provide a stove head, which has the characteristics of uniform distribution of gas in an outer ring gas groove, backflow prevention and no explosion.

[0004] The utility model is realized as follows: a burner head, which is special in that it includes a circular base plate, a circular center fire cover seat, a center ejector pipe, an outer ring gas groove, a support column seat, an axial gas channel, an outer ring premixing chamber and an outer ring ejector pipe,

[0005] The annular center fire cover seat includes a center gas groove on the top, a center radial air channel and an axial center air channel; the bottom plate of the outer ring gas groove is provided with an air inlet hole, an arc-shaped guide plate opposite to the air inlet hole and a flow equalizing check plate.

[0006] The central ejector pipe is connected with the axial central air channel, the support column seat and the axial gas channel are arranged between the outer ring gas groove and the circular seat plate, the outer ring gas groove and the circular seat plate between the support column seat and the axial gas channel constitute a radial secondary air channel, and the outer ring premixing chamber is arranged on the lower surface of the circular seat plate; the outer ring ejector pipe, the outer ring premixing chamber, the axial gas channel and the air inlet hole are connected in sequence; the outer ring premixing chamber and the axial gas channel are connected and the volume gradually increases from bottom to top and rotates right or left.

[0007] Preferably: the outer ring ejector pipe is arranged on the right side, the counterclockwise starting end side of the outer ring premixing chamber and the axial gas channel is a vertical plane, and the terminal side is a right spiral surface;

[0008] The extension line of the radial inner side of the flow-balancing check plate is tangent to the counterclockwise starting side of the inner ring wall plate of the outer ring gas groove.

[0009] Preferably: the outer ring ejector pipe is arranged on the left side, the outer ring premixing chamber and the axial gas channel have a starting end side in the clockwise direction that is a vertical plane and a terminal side that is a left helical surface;

[0010] The extension line of the radial inner side of the flow-balancing check plate is tangent to the starting side of the inner ring wall plate of the outer ring gas groove in the clockwise direction.

[0011] Preferably, two support column seats are provided, and two adjacent support column seats and the outer ring gas groove and the circular seat plate between the support column seats and the axial gas channel constitute two radial secondary channels.

[0012] Preferably, the support column seat includes an arc-shaped portion and a radial plate portion.

[0013] Preferably, it also includes a central premixing chamber, and the central ejector tube, the central premixing chamber and the axial central airway are connected in sequence.

[0014] A stove burner is special in that it comprises the burner head as described above.

[0015] The utility model discloses a stove head. An arc-shaped flow guide plate and a flow-equalizing check plate are arranged on an outer ring gas groove. Gas flows in one direction. The flow-equalizing check plate distributes the gas evenly and prevents backflow, thereby eliminating deflagration and flashover caused by uneven gas distribution and backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the utility model.

[0017] Figure 2 yes Figure 1 A-A view of.

[0018] Figure 3 yes Figure 1 B-B view.

[0019] Figure 4 It is a right view of the utility model.

[0020] Figure 5 It is a three-dimensional cross-sectional view of the utility model.

[0021] Figure 6 It is a stereogram of the second embodiment of the utility model. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] Example 1

[0025] like Figure 1 As shown, a burner head 1 includes a circular base plate 2, a circular center fire cover seat 3, a center ejector pipe 4, an outer ring gas groove 5, a support column seat 6, an axial gas channel 7, an outer ring premixing chamber 8 and an outer ring ejector pipe 9.

[0026] The annular center fire cover seat 3 includes a center gas groove 31, a center radial air passage 32 and an axial center gas passage 33 arranged at the top. The lower end of the axial center gas passage 33 is connected to the center ejector pipe 4, and the upper end is connected to the center gas groove 31. The cross section of the axial center gas passage 33 is in an arc shape.

[0027] The bottom plate of the outer ring gas groove 5 is provided with an air inlet hole 51, an arc-shaped guide plate 52 opposite to the air inlet hole, and a flow equalizing check plate 53.

[0028] The central ejector tube 4 is connected with the axial central air channel 33, the support column seat 6 and the axial gas channel 7 are arranged between the outer ring gas groove 5 and the circular seat plate 2, the outer ring gas groove 5 and the circular seat plate 2 between the support column seat 6 and the axial gas channel 7 constitute a radial secondary air channel, and the outer ring premixing chamber 8 is arranged on the lower surface of the circular seat plate 2; the outer ring ejector tube 9, the outer ring premixing chamber 8, the axial gas channel 7 and the air inlet hole 51 are connected in sequence; the outer ring premixing chamber 8 and the axial gas channel 7 are connected and the volume gradually increases from bottom to top and rotates right or left.

[0029] like Figure 1 As shown, the outer ring ejector tube 9 is arranged on the right side. Figure 3 , Figure 5 As shown, the counterclockwise starting end side of the outer ring premixing chamber 8 and the axial gas channel 7 is a vertical plane, and the terminal side is a right spiral surface;

[0030] The radial inner extension line of the flow-equalizing check plate 53 is tangent to the counterclockwise starting side of the inner ring wall plate of the outer ring gas groove 5. With such a design, the gas enters the outer ring gas groove 5 through the outer ring ejector pipe, the outer ring premixing chamber, and the axial gas channel, and mainly flows counterclockwise; the flow-equalizing check plate 53 has a gas-equalizing mixing function to prevent gas backflow, and because the gas is evenly distributed, it effectively prevents explosion during ignition; when the gas pipeline is cut off or disconnected, it flashes and creates a sound.

[0031] The utility model can also be implemented as follows: the outer ring ejector pipe 9 is arranged on the left side, the outer ring premixing chamber 8 and the axial gas channel 7 have a vertical plane at the starting end side in the clockwise direction and a left helical surface at the end side;

[0032] The radial inner extension line of the flow balancing check plate 53 is tangent to the clockwise starting side of the inner ring wall plate of the outer ring gas groove 5 .

[0033] As a further improvement of the utility model: it also includes a central premixing chamber 41, and the central ejector tube 4, the central premixing chamber 41 and the axial central airway 33 are connected in sequence.

[0034] As a further improvement of the utility model: two support column seats 6 are provided, and the two adjacent support column seats 6 and the outer ring gas groove 5 and the circular seat plate 2 between the support column seats 6 and the axial gas channel 7 constitute two radial secondary channels.

[0035] As a further improvement of the present invention, the support column seat 6 comprises an arc-shaped portion 61 and a radial plate portion 62. Such a structure can save materials and prevent deformation of the support column seat 6 and the outer ring gas groove.

[0036] Example 2

[0037] like Figure 6 As shown, a stove burner comprises the burner head 1 as described above, a central circular ring-shaped fire cover and an outer ring-shaped fire cover.

[0038] 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 burner head, characterized in that: It includes a circular base plate, a circular center fire cover seat, a center ejector pipe, an outer ring gas groove, a support column seat, an axial gas channel, an outer ring premixing chamber and an outer ring ejector pipe. The annular center fire cover seat includes a center gas groove on the top, a center radial air channel and an axial center air channel; the bottom plate of the outer ring gas groove is provided with an air inlet hole, an arc-shaped guide plate opposite to the air inlet hole and a flow equalizing check plate. The central ejector pipe is connected with the axial central air channel, the support column seat and the axial gas channel are arranged between the outer ring gas groove and the circular seat plate, the outer ring gas groove and the circular seat plate between the support column seat and the axial gas channel constitute a radial secondary air channel, and the outer ring premixing chamber is arranged on the lower surface of the circular seat plate; the outer ring ejector pipe, the outer ring premixing chamber, the axial gas channel and the air inlet hole are connected in sequence; the outer ring premixing chamber and the axial gas channel are connected and the volume gradually increases from bottom to top and rotates right or left.

2. A burner head according to claim 1, characterized in that: The outer ring ejector pipe is arranged on the right side, and the counterclockwise starting end side of the outer ring premixing chamber and the axial gas channel is a vertical plane, and the terminal side is a right spiral surface; The extension line of the radial inner side of the flow-balancing check plate is tangent to the counterclockwise starting side of the inner ring wall plate of the outer ring gas groove.

3. A burner head according to claim 1, characterized in that: The outer ring ejector pipe is arranged on the left side, and the starting end side of the outer ring premixing chamber and the axial gas channel in the clockwise direction is a vertical plane, and the terminal side is a left spiral surface; The extension line of the radial inner side of the flow-balancing check plate is tangent to the starting side of the inner ring wall plate of the outer ring gas groove in the clockwise direction.

4. A burner head according to claim 1, 2 or 3, characterized in that: There are two support column seats, and the two adjacent support column seats and the outer ring gas groove and the circular seat plate between the support column seats and the axial gas channel form two radial secondary channels.

5. A burner head according to claim 1, characterized in that: The support column seat includes an arc-shaped portion and a radial plate portion.

6. A burner head according to claim 1, characterized in that: It also includes a central premixing chamber, and the central ejector tube, the central premixing chamber and the axial central airway are connected in sequence.

7. A stove burner, characterized in that: Comprising the burner head as claimed in any one of claims 1 to 6.

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