Novel furnace end

Abstract

The utility model relates to a novel furnace end which comprises a fire distributing seat and a fire cover, the fire distributing seat and the fire cover are connected to form a fire distributing cavity, a flow distributing piece is arranged at the position, corresponding to the position between the fire distributing seat and the fire cover, in the fire distributing cavity, the flow distributing piece is in an annular shape, and the fire distributing cavity forms an upper gas mixing layer and a lower gas mixing layer which are sequentially distributed from top to bottom through the flow distributing piece. The fire distribution base is provided with an air inlet, the flow distribution piece is tightly connected with the side, away from the air inlet, of the fire distribution cavity, the flow distribution piece and the side, close to the air inlet, of the fire distribution cavity form an air guide channel, and a first flow guide face capable of guiding airflow to flow from the side, away from the air inlet, of the fire distribution cavity to the side close to the air inlet is formed at the bottom of the flow distribution piece. The first flow guide face is of a continuous face-shaped structure without a perforated or hollowed-out area, the flow dividing piece can enable airflow to bypass in the lower gas mixing layer and then enter the upper gas mixing layer through the gas guide channel, and therefore gas in the upper gas mixing layer is distributed more evenly, and the better fire uniformizing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas equipment, specifically relates to a novel furnace head. BACKGROUND

[0002] The furnace head is generally provided with a fire distribution chamber, and the gas enters the fire distribution chamber from the gas inlet channel and diffuses in the fire distribution chamber and is sprayed outwards to form a flame, but the pressure of the gas in the fire distribution chamber is relatively large at the position connected with the gas inlet channel and is relatively small at the position far away from the gas inlet channel, so that the fire distribution is not uniform.

[0003] In order to solve the above problems, the market appears the furnace head with a flow divider, for example, the patent document with the announcement number CN209147083U discloses a gas stove furnace head, and the specific content includes that a flow divider is arranged above the connection position of the injection pipe and the outer fire distribution chamber, a plurality of flow holes are arranged on the flow divider, and the flow holes are connected with the outer fire distribution chamber and / or the injection pipe. The flow divider can first disperse the gas entering the outer fire distribution chamber through the injection pipe, and then uniformly distribute the gas in the outer fire distribution chamber, so that the effect of uniform fire distribution is achieved.

[0004] Although the flow divider can alleviate the problem of non-uniform fire distribution to a certain extent, the pressure of the gas at the position of the flow divider is relatively large, and a large part of the gas will pass through the flow holes and then be sprayed outwards to burn after passing through the flow divider, and the amount of the gas in the fire distribution chamber far away from the position of the flow divider is relatively small, so that the distribution of the gas in the fire distribution chamber is not uniform.

[0005] Therefore, further improvement is needed. UTILITY MODEL CONTENT

[0006] The utility model aims at overcoming the defects of the prior art, and provides a novel furnace head, which can make the distribution of the gas in the upper mixing gas layer of the fire distribution chamber more uniform, so that better fire uniformity is achieved.

[0007] The utility model aims at overcoming the defects of the prior art, and provides a novel furnace head, which can make the distribution of the gas in the upper mixing gas layer of the fire distribution chamber more uniform, so that better fire uniformity is achieved.

[0008] A novel furnace head, which comprises a fire distribution seat and a fire cover, the fire distribution seat and the fire cover are connected to form a fire distribution chamber, a flow divider is arranged in the fire distribution chamber at a position between the fire distribution seat and the fire cover, the flow divider has an annular shape, the fire distribution chamber forms an upper mixing gas layer and a lower mixing gas layer which are distributed from top to bottom through the flow divider, the fire distribution seat is provided with a gas inlet, the flow divider is tightly connected to one side of the fire distribution chamber far away from the gas inlet, the flow divider and the one side of the fire distribution chamber close to the gas inlet form a gas guide channel, the bottom of the flow divider forms a first flow guide surface which can guide the gas flow from the side of the fire distribution chamber far away from the gas inlet to the side close to the gas inlet, and the first flow guide surface has a continuous surface structure without perforation or hollow region.

[0009] As a specific solution, the flow divider is in a closed annular shape.

[0010] As a specific solution, the flow area of the air guide channel is greater than or equal to the flow area of the air inlet.

[0011] As a specific solution, the flow divider is provided with a second flow guide surface capable of guiding the airflow from the lower mixed gas layer to the upper mixed gas layer on one side of the air guide channel, and the second flow guide surface is in a continuous surface structure without perforated or hollowed-out regions.

[0012] As a specific solution, the width of the air guide channel is W, 4mm≤W≤6mm, the width of the first flow guide surface is W1, 10mm≤W1≤13mm, and the width of the second flow guide surface is W2, 9mm≤W2≤10mm.

[0013] As a specific solution, the cross-sectional area of the upper mixed gas layer is smaller than that of the lower mixed gas layer.

[0014] As a specific solution, the air inlet is arranged at the center of the bottom of the fire pit, and a plurality of air inlets are uniformly distributed between the air inlet and the fire cavity, and the air inlets are arranged in the radial direction, and the first and second ends of the air inlets are in communication with the air inlet and the fire cavity, respectively.

[0015] As a specific solution, the height of the air inlet is less than or equal to the height of the lower mixed gas layer.

[0016] As a specific solution, the fire pit and the fire cover are respectively provided with a lower positioning step and an upper positioning step corresponding to the flow divider, and the upper and lower positioning steps are respectively in abutment with the upper and lower sides of the flow divider, so that the flow divider is installed and fixed in the fire cavity.

[0017] The beneficial effects of the present application are:

[0018] The flow divider can make the airflow pass through the air guide channel after winding in the lower mixed gas layer, so that the distribution of the gas in the upper mixed gas layer is more uniform, thereby achieving better fire uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The present application is a cross-sectional schematic diagram.

[0020] Figure 2 The present application is a cross-sectional schematic diagram. Figure One .

[0021] Figure 3 The present application is a cross-sectional schematic diagram. Figure Two . DETAILED DESCRIPTION

[0022] The utility model is further described below with reference to the drawings and examples.

[0023] Referring to Figures 1-3 The furnace head comprises a fire divider 1 and a fire cover 2, the fire divider 1 is connected with the fire cover 2 to form a fire cavity, a flow divider 3 is arranged in the fire cavity corresponding to the position between the fire divider 1 and the fire cover 2, the flow divider 3 is annular in shape, the fire cavity forms an upper mixed gas layer 11 and a lower mixed gas layer 12 distributed in sequence from top to bottom through the flow divider 3, the fire divider 1 is provided with an air inlet 13, the flow divider 3 is tightly connected with the side of the fire cavity away from the air inlet 13, the flow divider 3 and the side of the fire cavity close to the air inlet 13 form an air guide channel 14, the bottom of the flow divider 3 forms a first flow guide surface 31 capable of guiding the airflow from the side of the fire cavity away from the air inlet 13 to the side close to the air inlet 13, and the first flow guide surface 31 is continuous in surface shape without perforation or hollowed-out area.

[0024] When the gas enters the lower mixed gas layer 12 from the air inlet 13, the gas will not directly pass through the flow divider 3 to enter the upper mixed gas layer 11 under the action of the flow divider 3, and the gas needs to form a detour path under the action of the first flow guide surface 31, so that the gas can enter the upper mixed gas layer 11 through the air guide channel 14 after sufficient diffusion, the flow divider 3 can make the airflow in the lower mixed gas layer 12 pass through the air guide channel 14 to enter the upper mixed gas layer 11 after detouring, so that the gas distribution in the upper mixed gas layer 11 is more uniform, thereby achieving better fire uniformity.

[0025] At the same time, since the flow divider 3 is arranged, the volume of the upper mixed gas layer 11 is relatively small compared with the volume of the whole gas cavity, the internal pressure of the upper mixed gas layer 11 is relatively increased, and therefore the opportunity of backfire of the external flame is relatively reduced.

[0026] Further, the flow divider 3 is in the shape of a closed ring, ensuring that all the gas in the lower mixed gas layer 12 must pass through the air guide channel 14 to enter the upper mixed gas layer 11, so that the gas can better diffuse in the lower mixed gas layer 12 before entering the upper mixed gas layer 11, thereby making the gas distribution in the upper mixed gas layer 11 more uniform.

[0027] Further, the flow area of the air guide channel 14 is greater than or equal to the flow area of the air inlet 13, avoiding the situation that the flow area of the air guide channel 14 is smaller than the air inlet 13, thereby affecting the normal gas supply of the air inlet 13.

[0028] Further, the side of the flow divider 3 corresponding to the air guide channel 14 is provided with a second flow guide surface 32 capable of guiding the airflow from the lower mixed gas layer 12 to enter the upper mixed gas layer 11, the second flow guide surface 32 is continuous in surface shape without perforation or hollowed-out area, the second flow guide surface 32 makes the flow divider 3 have a certain thickness, increasing the distance of the gas flowing through the air guide channel 14, so that the gas diffusion is more sufficient.

[0029] Further, the width of the air guide channel 14 is W, 4mm≤W≤6mm, the width of the first flow guide surface 31 is W1, 10mm≤W1≤13mm, the width of the second flow guide surface 32 is W2, 9mm≤W2≤10mm, the width of the first flow guide surface 31 is larger than the width of the air guide channel 14, about twice, thus, most of the gas can flow through the first flow guide surface, the second flow guide surface 32 makes the thickness of the flow distribution piece 3 thicker than the general flow distribution piece, increases the distance of the gas flowing through the air guide channel 14, and makes the diffusion of the gas more sufficient.

[0030] Further, the cross-sectional area of the upper mixed gas layer 11 is smaller than the cross-sectional area of the lower mixed gas layer 12, further optimizing the volume of the upper mixed gas layer 11, thereby further reducing the chance of backfire of the external flame.

[0031] Further, the air inlet 13 is arranged at the bottom center of the ignition chamber 1, a plurality of air inlets 15 are uniformly distributed between the air inlet 13 and the ignition chamber, the air inlets 15 are arranged along the radial direction, the first and last ends of the air inlets 15 are respectively communicated with the air inlet 13 and the ignition chamber, and the gas of the air inlet 13 can enter the ignition chamber through the plurality of air inlets 15 at the same time, so that the distribution of the gas in the ignition chamber is more uniform.

[0032] Further, the height of the air inlet 15 is smaller than or equal to the height of the lower mixed gas layer 12, so that the gas in the air inlet 15 enters the lower mixed gas layer 12 as much as possible, reducing the chance of the gas in the air inlet 15 directly entering the air guide channel 14, so that more gas can enter the air guide channel 14 under the action of the first flow guide surface 31, thereby further making the gas fully diffuse in the lower mixed gas layer 12 and then enter the upper mixed gas layer 11 through the air guide channel 14.

[0033] Further, the ignition chamber 1 and the fire cover 2 are respectively provided with a lower positioning step 16 and an upper positioning step 21 corresponding to the flow distribution piece 3, the upper positioning step 21 and the lower positioning step 16 respectively abut the upper and lower sides of the flow distribution piece 3, so that the flow distribution piece 3 is installed and fixed in the ignition chamber, the flow distribution piece 3 does not need to be connected and fixed with the ignition chamber 1 and the fire cover 2 by welding, and the assembly process of the flow distribution piece 3 is simplified.

[0034] The above embodiments are only preferred schemes of the present application, and the present application can have other embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope set by the claims of the present application.

Claims

1. A new type of burner tip, comprising a burner base (1) and a burner cap (2), the burner base (1) and the burner cap (2) being connected to form a burner cavity, characterized in that, The position between the corresponding ignition seat (1) and the fire cover (2) in the ignition chamber is provided with a flow dividing member (3), the flow dividing member (3) is annular in shape, the ignition chamber forms an upper mixed gas layer (11) and a lower mixed gas layer (12) distributed from top to bottom in sequence through the flow dividing member (3), the ignition seat (1) has an air inlet (13), the flow dividing member (3) is closely connected to the side of the ignition chamber away from the air inlet (13), the flow dividing member (3) and the side of the ignition chamber close to the air inlet (13) form a gas guide channel (14), the bottom of the flow dividing member (3) forms a first flow guide surface (31) capable of guiding the airflow from the side of the ignition chamber away from the air inlet (13) to the side close to the air inlet (13), and the first flow guide surface (31) is a continuous surface structure without perforation or hollowed-out area.

2. The new burner tip according to claim 1, characterized in that: The flow dividing member (3) is a closed annular shape.

3. The new type of burner head according to claim 1, characterized in that: The flow area of the gas guide channel (14) is greater than or equal to the flow area of the air inlet (13).

4. The new type of burner head according to claim 1, characterized in that: The side of the flow dividing member (3) corresponding to the gas guide channel (14) is provided with a second flow guide surface (32) capable of guiding the airflow from the lower mixed gas layer (12) to enter the upper mixed gas layer (11) from above, and the second flow guide surface (32) is a continuous surface structure without perforation or hollowed-out area.

5. A new type of burner head according to claim 4, characterized in that: The width of the gas guide channel (14) is W, 4mm≤W≤6mm, the width of the first flow guide surface (31) is W1, 10mm≤W1≤13mm, and the width of the second flow guide surface (32) is W2, 9mm≤W2≤10mm.

6. The new type of burner head according to claim 1, characterized in that: The cross-sectional area of the upper mixed gas layer (11) is smaller than the cross-sectional area of the lower mixed gas layer (12).

7. The new type of burner head according to claim 1, characterized in that: The air inlet (13) is arranged at the bottom center position of the ignition seat (1), and a plurality of air inlet channels (15) are uniformly distributed between the air inlet (13) and the ignition chamber, the air inlet channels (15) are arranged along the radial direction, and the first and last ends of the air inlet channels (15) are respectively communicated with the air inlet (13) and the ignition chamber.

8. A new type of burner head according to claim 7, characterized by: The height of the air inlet channel (15) is less than or equal to the height of the lower mixed gas layer (12).

9. A new type of burner head according to any one of claims 1-8, characterized in that: The ignition seat (1) and the fire cover (2) are respectively provided with a lower positioning step (16) and an upper positioning step (21) corresponding to the flow dividing member (3), and the upper positioning step (21) and the lower positioning step (16) respectively abut the upper and lower sides of the flow dividing member (3) so that the flow dividing member (3) is mounted and fixed in the ignition chamber.

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