A gas burner with good gas mixing

Abstract

The present application relates to a kind of gas stoves of sufficient gas mixing, including ejector pipe and fire seat, fire seat has the fire cavity corresponding with the communication of ejector pipe, ejector pipe has premixing cavity, secondary gas mixing cavity and outlet cavity, premixing cavity has air inlet, outlet cavity is connected with fire cavity, the junction position of secondary gas mixing cavity 12 and premixing cavity 11 and outlet cavity 13 is connected, secondary gas mixing cavity is respectively connected with premixing cavity and outlet cavity, the mixed gas of gas and air passing through premixing cavity part will first enter secondary gas mixing cavity before entering outlet cavity, after mixed gas reaches the end of secondary gas mixing cavity, it will be turned back to the direction of premixing cavity and continue to collide with the mixed gas moving to the direction of secondary gas mixing cavity, increase the gas mixing time of gas and air, further improve the mixing effect of gas and air, to improve the overall combustion efficiency of gas stove, reduce the harmful gas content generated when burning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas equipment, in particular to a gas stove with sufficient gas mixing. BACKGROUND

[0002] The gas stove head generally includes an injection pipe and a fire seat, and the gas enters the fire seat after being mixed in the injection pipe for a short time to participate in combustion. Since the gas stays in the injection pipe for a short time, the gas and air are mixed for a short time, and the mixed gas enters the fire seat to participate in combustion without sufficient mixing, which affects the overall combustion efficiency of the gas stove, and a large amount of carbon monoxide and other harmful gases are generated during combustion.

[0003] Therefore, further improvement is needed. SUMMARY

[0004] The present application aims to overcome the deficiencies of the prior art and provide a gas stove with sufficient gas mixing, which aims to at least partially solve one of the above technical problems in the prior art.

[0005] The purpose of the present application is achieved as follows:

[0006] A gas stove with sufficient gas mixing includes an injection pipe and a fire seat, and the fire seat has a fire cavity corresponding to the injection pipe. The injection pipe has a premixing cavity, a secondary mixing cavity and an outlet cavity. The premixing cavity has an air inlet, the outlet cavity is connected to the fire cavity, and the secondary mixing cavity is connected to the intersection of the premixing cavity and the outlet cavity. The secondary mixing cavity is connected to the premixing cavity and the outlet cavity, respectively.

[0007] The fire seat is provided with a gas supplement cavity for air to enter, and the gas supplement cavity penetrates through the upper and lower ends of the fire seat. The bottom of the fire seat is provided with a flow guide slope, which is arranged in a downward inclined manner from the outside to the inside.

[0008] The secondary mixing cavity is arranged along the length direction of the premixing cavity.

[0009] The injection pipe is provided with a core extraction hole, and the core extraction hole is connected to a sealing bottom plate. A sealing structure is arranged between the sealing bottom plate and the core extraction hole.

[0010] The sealing structure includes a convex step arranged on the sealing bottom plate and extending towards the core extraction hole. The convex step is tightly connected to the core extraction hole.

[0011] The sealing bottom plate is provided with an assembly lug, and the assembly lug can be connected to the bottom shell of the gas stove.

[0012] The injection pipe includes a three-way seat and an air inlet portion. The air inlet is arranged on the air inlet portion, and the secondary mixing cavity and the outlet cavity are arranged on the three-way seat. The three-way seat and the air inlet portion are connected and fixed by a sealing connection structure.

[0013] The sealing connection structure comprises a connecting groove arranged on the tee seat, and the air inlet part is tightly connected with the connecting groove.

[0014] The sealing connection structure comprises a sealing ring and an air inlet nozzle arranged on the tee seat, the air inlet nozzle is provided with a connecting step, the sealing ring and the connecting step are matched with each other, and the sealing ring and the air inlet nozzle are tightly connected with the air inlet part respectively.

[0015] The beneficial effects of the present application are as follows:

[0016] Part of the mixed gas of the gas and the air passing through the premixing cavity will enter the secondary mixing cavity before entering the air outlet cavity, and after the mixed gas reaches the end of the secondary mixing cavity, it will return to the premixing cavity direction and continue to collide with the mixed gas moving in the secondary mixing cavity direction, thereby increasing the mixing time of the gas and the air, further improving the mixing effect of the gas and the air, thereby improving the overall combustion efficiency of the gas stove and reducing the content of harmful gas generated during combustion.

[0017] Additional aspects and advantages of the present application will become apparent in the description which follows, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic view of the first embodiment of the present application.

[0019] Figure 2 It is an exploded schematic view of the first embodiment of the present application. Figure 1 .

[0020] Figure 3 It is an exploded schematic view of the first embodiment of the present application. Figure 2 .

[0021] Figure 4 It is a cross-sectional schematic view of the second embodiment of the present application.

[0022] Figure 5 It is an exploded schematic view of the second embodiment of the present application. DETAILED DESCRIPTION

[0023] The present application will be further described below in combination with the drawings and embodiments.

[0024] First embodiment

[0025] Reference Figures 1-3The gas stove with sufficient gas mixing includes an ejector pipe 1 and a distributor 2, the distributor 2 has a distributor cavity 21 corresponding to the communication of the ejector pipe 1, the ejector pipe 1 has a premixing cavity 11, a secondary mixing cavity 12 and an outlet cavity 13, the premixing cavity 11 has an air inlet, the outlet cavity 13 is communicated with the distributor cavity 21, the secondary mixing cavity 12 is connected with the intersection position of the premixing cavity 11 and the outlet cavity 13, the secondary mixing cavity 12 is communicated with the premixing cavity 11 and the outlet cavity 13 respectively, the mixed gas of the gas and the air passing through the premixing cavity 11 will enter the secondary mixing cavity 12 before entering the outlet cavity 13, and the mixed gas reaching the end of the secondary mixing cavity 12 will return to the premixing cavity 11 and continue to collide with the mixed gas moving to the secondary mixing cavity 12, thereby increasing the mixing time of the gas and the air and further improving the mixing effect of the gas and the air, so as to improve the overall combustion efficiency of the gas stove and reduce the content of harmful gas generated during combustion.

[0026] Further, since the ejector pipe 1 can increase the mixing time of the gas and the air, the overall height of the ejector pipe 1 in the embodiment can be reduced, so that the overall structure of the ejector pipe 1 and the distributor 2 can be more compact, thereby reducing the height of the stove frame on the gas stove.

[0027] As shown in the following table:

[0028] Gas burner of the prior art Gas burner in the present embodiment Thermal load (kw) 4.929 4.661 Reduced thermal load (kw) 5.200 4.874 Thermal efficiency (%) 59.63 63.72 CO (ppm) 138 109 Effective height of the burner block (mm) 29 25 CO concentration (COa = 1) < 0.05 0.0259 0.0254 Overall thermal efficiency (%) 63.28 64.48

[0029] Further, the distributor 2 is provided with a supplementary air cavity 22 for air entering, the supplementary air cavity 22 penetrates through the upper and lower ends of the distributor 2, the bottom of the distributor 2 is provided with a flow guide slope 23, the flow guide slope 23 is arranged in a downward inclined shape from outside to inside, thereby reducing the resistance of the external air entering the supplementary air cavity 22 through the flow guide slope 23, so as to improve the air intake amount and further improve the combustion efficiency and reduce the generation of harmful gas.

[0030] Further, the secondary mixing cavity 12 is arranged along the length direction of the premixing cavity 11, so that more gas and air mixed gas can enter the secondary mixing cavity 12 under the action of inertia, thereby improving the overall mixing effect.

[0031] Further, the ejector pipe 1 is provided with a core pulling hole 14, the core pulling hole 14 is connected with a sealing bottom plate 3, a sealing structure is arranged between the core pulling hole 14 and the sealing bottom plate 3, the core pulling hole 14 can simplify the demolding process during the processing of the ejector pipe 1, the sealing bottom plate 3 can seal the core pulling hole 14, and meanwhile, the sealing structure can improve the sealing property between the sealing bottom plate 3 and the core pulling hole 14.

[0032] Further, the sealing structure includes a convex step 31 arranged on the sealing bottom plate 3 and extending towards the core pulling hole 14, the convex step 31 is tightly connected with the core pulling hole 14.

[0033] Preferably, a sealing ring can be further arranged between the core-pulling hole 14 and the convex step 31, so as to further improve the sealing performance between the core-pulling hole 14 and the sealing bottom plate 3.

[0034] Further, the sealing bottom plate 3 is provided with an assembly lug 32, which can be connected with a bottom shell of a gas stove, so as to facilitate the assembly of the gas stove with the bottom shell of the gas stove.

[0035] Further, the injection pipe 1 comprises a tee seat 15 and an air inlet portion 16, the air inlet is arranged on the air inlet portion 16, the secondary mixing chamber 12 and the air outlet chamber 13 are arranged on the tee seat 15 respectively, and the tee seat 15 and the air inlet portion 16 are connected and fixed through a sealing connection structure.

[0036] Since the secondary mixing chamber 12 is arranged along the length direction of the premixing chamber 11, when the tee seat 15 is processed, the secondary mixing chamber 12 and the air inlet end of the tee seat 15 can be formed through one-time molding by demolding core pulling, so as to reduce the processing difficulty.

[0037] Further, the sealing connection structure comprises a connecting groove 151 arranged on the tee seat 15, and the air inlet portion 16 is tightly connected with the connecting groove 151.

[0038] Preferably, the air inlet portion 16 and the connecting groove 151 are further fixed through welding, so as to further improve the sealing performance of the connecting position.

[0039] Second embodiment

[0040] Referring to Figure 4 , Figure 5 The difference between the present embodiment and the first embodiment is that the sealing connection structure of the gas stove with sufficient gas mixing comprises a sealing ring 17 and an air inlet nozzle 152 arranged on the tee seat 15, the air inlet nozzle 152 is provided with a connecting step 153, the sealing ring 17 and the connecting step 153 are matched with each other, the sealing ring 17 and the air inlet nozzle 152 are tightly connected with the air inlet portion 16 respectively, the sealing ring 17 can ensure the sealing performance between the tee seat 15 and the air inlet portion 16, and the two do not need to be fixed through welding, so the materials of the two can be different, thereby improving the flexibility of production and processing.

[0041] The rest of the unrecited parts are the same as the first embodiment, which will not be repeated here.

[0042] The above embodiments are only preferred solutions of the present application, and the present application can have other embodiments. Those skilled in the art can also make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope set by the claims of the present application.

Claims

1. A gas-fired furnace with adequate gas mixing, comprising an injector (1) and a flame distribution seat (2), wherein the flame distribution seat (2) has a flame distribution chamber (21) corresponding to and communicating with the injector (1), characterized in that, The ejector tube (1) has a premixed gas chamber (11), a secondary mixing gas chamber (12) and an outlet gas chamber (13). The premixed gas chamber (11) has an air inlet. The outlet gas chamber (13) is connected to the ignition chamber (21). The secondary mixing gas chamber (12) is connected to the intersection of the premixed gas chamber (11) and the outlet gas chamber (13). The secondary mixing gas chamber (12) is connected to both the premixed gas chamber (11) and the outlet gas chamber (13). The secondary mixing chamber (12) extends along the length of the premixed chamber (11).

2. The gas-fired furnace with sufficient gas mixing according to claim 1, characterized in that: The ignition base (2) is provided with an air supply chamber (22) for air to enter. The air supply chamber (22) runs through the upper and lower ends of the ignition base (2). The bottom of the ignition base (2) is provided with a guide slope (23). The guide slope (23) is set in a downward slope from the outside to the inside.

3. The gas-fired furnace with sufficient gas mixing according to claim 1, characterized in that: The ejector tube (1) is provided with a core-pulling hole (14), and the core-pulling hole (14) is connected to a sealing base plate (3). A sealing structure is provided between the sealing base plate (3) and the core-pulling hole (14).

4. The gas-fired furnace with sufficient gas mixing according to claim 3, characterized in that: The sealing structure includes a raised step (31) disposed on the sealing base plate (3) and extending toward the core-pulling hole (14), the raised step (31) being tightly connected to the core-pulling hole (14).

5. The gas-fired furnace with sufficient gas mixing according to claim 3, characterized in that: The sealing base plate (3) is provided with mounting ears (32), which can be connected to the bottom shell of the gas stove.

6. The gas-fired furnace with adequate gas mixing according to any one of claims 1-5, characterized in that: The ejector tube (1) includes a three-way seat (15) and an air inlet (16). The air inlet is located on the air inlet (16). The secondary mixing chamber (12) and the air outlet chamber (13) are respectively located on the three-way seat (15). The three-way seat (15) and the air inlet (16) are connected and fixed by a sealing connection structure.

7. The gas-fired furnace with sufficient gas mixing according to claim 6, characterized in that: The sealing connection structure includes a connecting groove (151) provided on the three-way seat (15), and the air intake (16) is tightly connected to the connecting groove (151).

8. The gas-fired furnace with sufficient gas mixing according to claim 6, characterized in that: The sealing connection structure includes a sealing ring (17) and an air inlet (152) provided on a three-way seat (15). The air inlet (152) is provided with a connecting step (153). The sealing ring (17) and the connecting step (153) cooperate with each other. The sealing ring (17) and the air inlet (152) are respectively tightly connected to the air intake part (16).

Images