Full-premixing burner furnace end of wall-hanging stove

Abstract

The utility model discloses a full-premixing burner furnace end of a wall-hanging stove. The full-premixing burner furnace end comprises an injection channel, a furnace plate, a splitter plate, a fire hole plate assembly and a pressing plate. The pressure plate cover is arranged on one side of the furnace plate; a primary gas mixing cavity is defined by the stove plate; the stove plate is provided with a plurality of partition walls; the primary gas mixing cavity is divided into a gas inlet, a gas distribution channel and a central gas mixing chamber which are communicated in sequence by the partition wall; the splitter plate is provided with a splitter hole communicated with the central gas mixing chamber; and the fire hole plate assembly and the splitter plate are spaced to form a secondary gas mixing cavity. According to the utility model, through the flow dividing and converging effects of the primary gas mixing cavity, the uniform flow dividing effects of the flow dividing holes of the flow dividing plate and the multiple gas mixing effects of secondary gas mixing of the secondary gas mixing cavity, fuel gas and air in the furnace end are fully mixed and then are sent out to the combustion chamber; and moreover, the secondary gas mixing cavity and the primary gas mixing cavity form a separated cavity structure, so that the risk that flame of the combustion chamber backflames and burns towards the primary gas mixing cavity and the injection channel of the furnace end can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to wall -hanging stove technical field especially relates to a wall -hanging stove's full premix burner furnace end. BACKGROUND

[0002] Full premix gas wall -hanging stove refers to the gas and air have been mixed fully before entering the combustion chamber, therefore can burn fully, and this kind of mode, can reduce the amount of gas consumed, thereby reach the purpose of energy saving, reduce the cost. For example patent number CN208547115U discloses full premix condensing wall -hanging stove. It includes the full premix fan with air channel and gas channel, gas inlet furnace end, combustion chamber, the heat exchange coil and exhaust passage arranged in the combustion chamber, the full premix fan mixes gas and air and pumps into the combustion chamber and burns, and carries out heat exchange with the water body in the heat exchange coil. However, the burner of the prior art full premix gas wall -hanging stove has the following defects:

[0003] Its furnace end includes the ejection channel and the furnace plate, the ejection channel connects the full premix fan, and the mixed gas of gas and air can be supplied to the combustion chamber through the furnace plate. However, the furnace plate directly supplies the mixed gas to the combustion chamber, lacks an effective gas mixing structure, and the mixing rate of the mixed gas is low. In addition, the flame of the combustion chamber has a risk of backfire combustion into the furnace plate.

[0004] Therefore, further improvement is needed. INVENTION CONTENTS

[0005] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a full premix burner furnace end of wall -hanging stove.

[0006] The utility model discloses an embodiment that solves its technical problem adopts the technical scheme of a full premix burner furnace end of wall -hanging stove, including: ejection channel, furnace plate, shunt board, fire hole plate assembly and pressure disc.

[0007] One end of the ejection channel is connected to the furnace plate, and the other end is communicated with the full premix fan. The pressure disc cover is arranged on one side of the furnace plate. The furnace plate is surrounded to form a primary gas mixing chamber. The furnace plate is provided with a plurality of partition walls. The partition walls divide the primary gas mixing chamber into an air inlet, a gas distribution channel and a central gas mixing chamber in sequence. The central gas mixing chamber is located in the middle of the primary gas mixing chamber, and the air inlet is arranged close to the ejection channel. The gas distribution channel is arranged on the opposite sides of the central gas mixing chamber.

[0008] The shunt board and the fire hole plate assembly are arranged on one side of the furnace plate by the pressure disc. The shunt board is provided with a shunt hole communicated with the central gas mixing chamber. The fire hole plate assembly and the shunt board form a secondary gas mixing chamber.

[0009] Optionally, the flow dividing plate is provided with a flow blocking part; the flow blocking part is arranged between the injection channel and the air inlet; the outer edge of the flow blocking part is spaced apart from the injection channel to form a flow dividing gap.

[0010] Optionally, the flow dividing plate is in a flat plate shape, and the fire hole plate assembly is in an arc shape.

[0011] Optionally, the pressure plate is provided with an annular fire outlet ring table and a connecting flange; the fire hole plate assembly is hung on the fire outlet ring table, and the connecting flange is installed on the furnace plate.

[0012] Optionally, the pressure plate is provided with a fixing plate; the fixing plate is arranged between the connecting flange and the flow dividing plate.

[0013] Optionally, the fire hole plate assembly comprises a fire hole fixing plate and a fire hole fiber plate; the fire hole fiber plate is a metal fiber mesh.

[0014] Optionally, the fire hole fiber plate is provided with a plurality of fire holes.

[0015] The beneficial effects of the present application are as follows: the separation wall divides the primary mixing cavity into the air inlet, the gas dividing channel and the central mixing chamber which are sequentially communicated; the mixed gas is formed by the flow dividing of the two sides in the primary mixing cavity, and then the mixed gas is recombined in the central mixing chamber; then the mixed gas uniformly dispersed through the flow dividing holes of the flow dividing plate enters the secondary mixing cavity for mixing again, and is sent out from the fire hole plate assembly to the combustion chamber. Through the flow dividing and recombining of the primary mixing cavity, the uniform flow dividing of the flow dividing holes of the flow dividing plate and the multiple mixing of the secondary mixing of the secondary mixing cavity, the gas and air in the burner tip are fully mixed and then sent out to the combustion chamber; and the separation cavity structure formed by the secondary mixing cavity and the primary mixing cavity can effectively avoid the risk of backfire combustion of the flame of the combustion chamber to the primary mixing cavity and the injection channel of the burner tip.

[0016] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 Fig. 1 is a structural schematic view of a full premix combustion system of the present application;

[0019] Figure 2 Fig. 2 is a structural schematic view of a burner tip of a full premix burner of the present application;

[0020] Figure 3 Fig. 3 is a structural schematic view of a burner tip of a full premix burner of the present application.Figure 2 Explanatory diagram of the decomposition of the full premix burner furnace head;

[0021] Figure 4 For Figure 2 Explanatory diagram of the decomposition of the full premix burner furnace head.

[0022] Explanation of main element symbols:

[0023] 10, injection channel; 20, furnace tray; 30, flow dividing plate; 31, flow blocking part; 40, fire hole plate assembly; 41, fire hole fixing plate; 42, fire hole fiber plate; 50, pressure plate; 51, fire outlet ring table; 52, connecting flange; 60, fixing plate; 70, primary gas mixing cavity; 71, gas inlet; 72, gas dividing groove; 73, central gas mixing chamber; 80, secondary gas mixing cavity; 90, full premix blower. DETAILED DESCRIPTION

[0024] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, within, etc. is included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0026] In the description of the present application, it is understood that the position description, such as the position or location relationship indicated by up, down, front, back, left, right, etc. is based on the position or location relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application.

[0027] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication or interaction relationship of two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0028] Embodiment

[0029] With reference to Figures 1 to 4 The utility model provides a wall -hanging stove's full premix burner furnace head, include: injection channel 10, stove tray 20, shunt plate 30, fire hole plate assembly 40 and pressure plate 50,

[0030] Injection channel 10 one end is connected stove tray 20, other end and full premix fan 90 intercommunication, pressure plate 50 cover is located at one side of stove tray 20, stove tray 20 surrounds and is formed with primary gas mixing chamber 70, stove tray 20 is provided with a plurality of partition walls, partition wall divides primary gas mixing chamber 70 into intake port 71, gas distribution channel 72 and central gas mixing chamber 73 that communicate in turn, central gas mixing chamber 73 is located in the middle part of primary gas mixing chamber 70, intake port 71 is close to injection channel 10 setting, gas distribution channel 72 is provided with two, ring is located in the opposite sides of central gas mixing chamber 73,

[0031] Shunt plate 30 and fire hole plate assembly 40 are pressed to one side of stove tray 20 by pressure plate 50, shunt plate 30 is provided with the shunt hole that communicates central gas mixing chamber 73, fire hole plate assembly 40 and shunt plate 30 interval form secondary gas mixing chamber 80.

[0032] In the utility model, partition wall divides primary gas mixing chamber 70 into intake port 71, gas distribution channel 72 and central gas mixing chamber 73 that communicate in turn, make mixed gas in primary gas mixing chamber 70 form two sides shunt, and then reflow in central gas mixing chamber 73, the shunt reflow of one mixed effect of shunt plate 30 shunt hole, even dispersion enters secondary gas mixing chamber 80 again and mixes, and then sends out from fire hole plate assembly 40 to combustion chamber. The utility model, through the shunt reflow of primary gas mixing chamber 70, the even dispersion of shunt plate 30 shunt hole, the multiple gas mixing effect of secondary gas mixing of secondary gas mixing chamber 80, make the gas and air in furnace head reach the full mixing after sending out to combustion chamber, and, the separation chamber structure formed by secondary gas mixing chamber 80 and primary gas mixing chamber 70 can effectively avoid the risk that the flame of combustion chamber is backfire combustion to primary gas mixing chamber 70 and injection channel 10.

[0033] In the embodiment, shunt plate 30 is provided with baffle part 31, baffle part 31 is located between injection channel 10 and intake port 71, and the outer edge of baffle part 31 is spaced apart from injection channel 10 to form a shunt gap. The baffle part 31 can centrally prevent the mixed gas from being directly delivered from the injection channel 10 to the intake port 71. After the mixed gas impacts the baffle part 31, it will flow towards the outer edge of the baffle part 31, enter the intake port 71 after passing through the shunt gap, thereby further improving the mixing effect of the gas and air.

[0034] In the embodiment, the flow distribution plate 30 is flat, and the fire hole plate assembly 40 is arc-shaped. The arc-shaped fire hole plate assembly 40 can form a secondary mixing chamber 80 between the flat flow distribution plate 30, and the arc-shaped fire hole plate assembly 40 can output mixed gas on the arc-shaped surface, so that the output area of the mixed gas is larger.

[0035] In the embodiment, the pressure plate 50 is provided with an annular fire ring platform 51 and a connecting flange 52. The fire hole plate assembly 40 is hung on the fire ring platform 51, and the connecting flange 52 is installed on the furnace plate 20. The fire ring platform 51 provides a mounting space for the outer edge of the fire hole plate assembly 40, and the connecting flange 52 can connect the pressure plate 50 to the furnace plate 20.

[0036] In the embodiment, the pressure plate 50 is provided with a fixing plate 60. The fixing plate 60 is arranged between the connecting flange 52 and the flow distribution plate 30. The fixing plate 60 can align and press the flow distribution plate 30 to the furnace plate 20, so as to facilitate the press-fitting of the flow distribution plate 30 and improve the sealing effect of the primary mixing chamber 70.

[0037] In the embodiment, the fire hole plate assembly 40 includes a fire hole fixing plate 6041 and a fire hole fiber plate 42. The fire hole fiber plate 42 is a metal fiber mesh.

[0038] Specifically, the fire hole fiber plate 42 is provided with a plurality of fire holes. The fire holes of the plurality of fire hole fiber plates 42 are staggered, so that the fuel gas can be more uniformly diffused and output to the combustion chamber.

[0039] Of course, the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make equivalent transformation or replacement without departing from the spirit of the utility model, and these equivalent transformations and replacements are all included in the range defined by the claims of the present application.

Claims

1. A full-premix burner burner head for a wall-hung boiler, characterized in that, The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50);The utility model relates to a kind of gas injection channel (10), furnace tray (20), flow splitter (30), fire hole plate assembly (40) and pressure plate (50) ​ ​ ​ 2. The whole premix burner of a wall-hung boiler according to claim 1, characterized in that: ​ 3. The full-premix burner firepot of a wall-hung boiler according to claim 1, characterized in that: ​ 4. The full-premix burner firepot of a wall-hung boiler according to claim 1, characterized in that: ​ 5. The whole-premix burner firepot of a wall-hung boiler according to claim 4, characterized in that: ​ 6. The full-premix burner firepot of a wall-hung boiler according to claim 1, characterized in that: ​ 7. The whole-premix burner firepot of a wall-hung boiler according to claim 6, characterized in that: ​

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