High-energy efficiency-saving upper air inlet furnace end

Abstract

The high-energy efficiency-saving upper air inlet furnace end comprises a furnace base, an inner ring fire distribution cavity and an outer ring fire distribution cavity, the inner ring fire distribution cavity and the outer ring fire distribution cavity are connected to the upper portion of the furnace base, and one side of the furnace base is further provided with a first air pipe and a second air pipe which communicate with the inner ring fire distribution cavity and the outer ring fire distribution cavity correspondingly. An inner fire distribution ring and an outer fire distribution ring which are respectively communicated with the inner ring fire distribution cavity and the outer ring fire distribution cavity are arranged at the top of the furnace seat; a flow guide top cover is further arranged on the top of the outer fire distribution ring, a flow mixing cavity is formed between the flow guide top cover and the outer fire distribution ring, a flow guide opening is formed in the flow guide top cover, and a rotational flow flow guide bottom wall is formed in the position, close to the flow guide opening, of the inner bottom wall of the flow mixing cavity. The inner fire distribution ring is in the shape of an annular cavity with an opening in the top face, and an oxygen supply opening is formed in one side wall of the inner fire distribution ring in an inwards-concave mode. Compared with the prior art, the high-energy and energy-saving upper air inlet furnace end has the advantages that the high-energy and energy-saving upper air inlet furnace end is provided with a drainage air channel structure, and mixing and stable combustion are enhanced.

Description

Technical Field

[0001] This invention relates to the field of gas stove technology, specifically to a high-energy-saving, top-intake stove head. Background Technology

[0002] Top-intake burners, with their fully enclosed chassis and air intake from the side or top, offer high safety and cleanliness, and are widely used in modern gas stoves.

[0003] However, existing top-intake burners still have some common defects. Currently, most top-intake burners adopt a vertical or near-vertical channel design, and the mixture of gas and air is usually sprayed out and burned in a relatively direct manner.

[0004] Such designs result in a short residence time of the mixed gas in the burner cavity, insufficient mixing, and an unstable flow field when it flows out.

[0005] This results in room for improvement in the combustion efficiency of the flame. The flame is too long and lacks rigidity, making it susceptible to interference from external airflow. The heat load cannot reach the optimal value, and there is also room for optimization in the emission indicators of incomplete combustion products such as carbon monoxide. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a high-energy-saving and energy-efficient top-inlet burner head with a diversion air passage structure that enhances mixing and stable combustion.

[0007] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a high-energy-saving and energy-efficient top-inlet furnace head, including a furnace base and an inner ring fire distribution chamber and an outer ring fire distribution chamber connected to the upper part of the furnace base. A first gas pipe and a second gas pipe are respectively connected to the inner ring fire distribution chamber and the outer ring fire distribution chamber on one side of the furnace base. An inner fire distribution ring and an outer fire distribution ring are respectively connected to the inner ring fire distribution chamber and the outer ring fire distribution chamber on the top of the furnace base.

[0008] The top of the outer flame ring is also provided with a flow guide cover, and a mixing cavity is formed between the flow guide cover and the outer flame ring. A flow guide port is opened on the flow guide cover, and a swirling flow guide bottom wall is formed on the bottom wall of the mixing cavity near the flow guide port.

[0009] The inner fire-distributing ring is an annular cavity shape with an opening on the top surface, and an oxygen supply opening is formed by a recess in one side wall.

[0010] Preferably, both the first and second air pipes have flange connections.

[0011] Preferably, the lower end of the outer fire distribution ring extends downward and is provided with two sets of connecting feet that communicate with the top of the outer ring fire distribution chamber;

[0012] The outer fire ring is connected to two sets of connecting feet to form two sets of mutually separated mixing chambers, and the guide port is provided with two sets respectively corresponding to the two sets of mixing chambers;

[0013] The bottom wall of the swirling guide is a guide slope that is inclined and raised towards the guide port, and the gas flows in opposite directions in the two sets of guide ports.

[0014] Preferably, the top of the outer end wall of the outer flame ring is recessed inward to form an outer flame head fitting groove;

[0015] The top of the outer end wall of the inner flame ring is also recessed inward to form an inner flame head fitting groove.

[0016] Preferably, the drainage top cover is also provided with a drain outlet that is matched with the drainage port;

[0017] The outlet is formed concavely along the circumference of the guide port.

[0018] Preferably, a fixing buckle is also provided between the outer walls of the first and second air pipes.

[0019] The advantages of this invention compared to the prior art are:

[0020] In this invention, a mixing chamber is set between the top cover and the outer flame ring, and a swirling guide wall is designed at the bottom of the mixing chamber. This causes the gas-air mixture to generate a swirling effect before flowing out, thereby improving the mixing uniformity and combustion completeness. Complete combustion significantly reduces the generation of incomplete combustion products such as carbon monoxide, making the emission indicators better than the current environmental protection standards.

[0021] Without sacrificing the inherent safety and cleanliness of the top-intake burner, it significantly improves combustion efficiency, flame stability, and environmental performance, making it easy to promote and use. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a high-energy-saving, top-inlet furnace head.

[0023] Figure 2 This is a schematic diagram of a three-dimensional structure of a high-energy-saving and energy-efficient top-inlet furnace head.

[0024] Figure 3 This is a partial structural schematic diagram of a cross-section of a high-energy-saving and energy-efficient top-inlet furnace head.

[0025] Figure 4 This is a top view structural schematic diagram of a high-energy-saving and energy-efficient top-inlet furnace head.

[0026] As shown in the figure: 1. Furnace base, 2. Inner ring fire chamber, 3. Outer ring fire chamber, 4. First gas pipe, 5. Second gas pipe, 6. Inner fire ring, 7. Outer fire ring, 8. Drainage top cover, 9. Drainage port, 10. Swirl flow guide bottom wall, 11. Oxygen supply opening, 12. Pipe connection port, 13. Connecting foot, 14. Outer fire head fitting groove, 15. Inner fire head fitting groove, 16. Drainage port, 17. Fixing buckle. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Combined with appendix Figure 1-4 As shown, a high-energy-saving and energy-efficient top-inlet furnace head includes a furnace base 1 and an inner ring fire distribution chamber 2 and an outer ring fire distribution chamber 3 connected to the upper part of the furnace base 1. A first gas pipe 4 and a second gas pipe 5 are respectively connected to the inner ring fire distribution chamber 2 and the outer ring fire distribution chamber 3 on one side of the furnace base 1.

[0029] When using:

[0030] The top of the furnace base 1 is also connected to the inner ring fire chamber 2 and the outer ring fire chamber 3 respectively, and is provided with an inner fire chamber ring 6 and an outer fire chamber ring 7;

[0031] In one embodiment:

[0032] The outer flame ring 7 is also provided with a flow guide cover 8. A mixing chamber is formed between the flow guide cover 8 and the outer flame ring 7. A flow guide port 9 is provided on the flow guide cover 8. A swirling flow guide bottom wall 10 is formed on the bottom wall of the mixing chamber near the flow guide port 9, so that the gas is swirled and guided out, thereby increasing the effect of mixing and combustion.

[0033] In one embodiment:

[0034] The inner flame ring 6 is an annular cavity with an open top surface. One side wall of the inner flame ring 6 has an oxygen supply opening 11. To facilitate oxygen supply, the lower end of the outer flame ring 7 extends downward and has two sets of connecting feet 13 that communicate with the top of the outer ring flame chamber 3. That is, an air intake passage is formed between the outer flame ring 7 and the outer ring flame chamber 3, which is used in conjunction with the oxygen supply opening 11.

[0035] The outer end wall of the outer flame ring 7 is recessed inward at the top and has an outer flame head fitting groove 14; the outer end wall of the inner flame ring 6 is also recessed inward at the top and has an inner flame head fitting groove 15.

[0036] In one embodiment:

[0037] The outer fire ring 7 is connected to two sets of connecting feet 13 to form two sets of mutually separated mixing chambers. The guide port 9 is provided with two sets corresponding to the two sets of mixing chambers. The swirling guide bottom wall 10 is a guide slope that is inclined and raised towards the guide port 9. The gas flow direction in the two sets of guide ports 9 is opposite. The guide top cover 8 is also provided with a drain port 16 that is matched with the guide port 9. The drain port 16 is formed concavely along the circumference of the guide port 9.

[0038] Both the first air pipe 4 and the second air pipe 5 have pipe connection ports 12, and a fixing buckle 17 is also provided between the outer walls of the first air pipe 4 and the second air pipe 5.

[0039] In a specific implementation of the present invention, the inner ring flame chamber 2 and the outer ring flame chamber 3 are respectively connected to the gas source through the first gas pipe 4 and the second gas pipe 5. The ends of the two gas pipes are provided with standardized pipe connection ports 12, which facilitates quick connection with the gas supply system of the stove.

[0040] The outer flame distribution ring 7 is firmly supported on the top of the outer ring flame distribution chamber 3 by two sets of connecting feet 13, forming two independent mixing chambers; each mixing chamber has a swirling guide bottom wall 10 at the bottom that is inclined and raised toward its respective guide port 9, so that the mixed gas is accelerated along the inclined surface and generates a swirling flow.

[0041] The top cover 8 is fastened to the outer fire ring 7, and the guide port 9 and the drain port 16 on it work together to regulate the airflow direction and pressure distribution.

[0042] The inner flame ring 6 has an opening at the top and an oxygen supply opening 11 on the side wall to introduce air for combustion. Both the inner and outer flame rings have fitting grooves at the top for installing detachable flame heads, which facilitates cleaning and maintenance.

[0043] The fixed fastener 17 rigidly connects the two air pipes, improving the overall assembly stability.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] The working principle of this invention is as follows: When this burner is working, the gas enters the inner ring flame chamber 2 and the outer ring flame chamber 3 through the first gas pipe 4 and the second gas pipe 5 respectively. Then, it is guided by the swirling guide bottom wall 10 in the mixing chamber, accelerates along the inclined surface and forms a swirling flow, and then is ejected through the guide port 9. The drain port 16 on the guide top cover 8 adjusts the local negative pressure. The swirling structure makes the flame short and concentrated, with strong rigidity and improved anti-interference ability.

[0046] The inner flame ring 6 introduces air through the oxygen supply opening 11 to promote complete combustion of the central flame.

[0047] The dual mixing chamber design in this invention makes the outer ring flame symmetrically reversed and swirled, resulting in more uniform heat distribution. The overall structure significantly improves combustion efficiency, reduces CO emissions, and achieves the goal of high energy efficiency.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-energy-saving and energy-efficient top-inlet burner head, comprising a furnace base (1) and an inner ring fire distribution chamber (2) and an outer ring fire distribution chamber (3) connected to the upper part of the furnace base (1), wherein a first gas pipe (4) and a second gas pipe (5) are respectively connected to the inner ring fire distribution chamber (2) and the outer ring fire distribution chamber (3) on one side of the furnace base (1), characterized in that: The top of the furnace base (1) is also connected to the inner ring fire chamber (2) and the outer ring fire chamber (3) respectively, and is provided with an inner fire chamber ring (6) and an outer fire chamber ring (7); The top of the outer fire ring (7) is also provided with a flow-guiding top cover (8), and a mixing cavity is formed between the flow-guiding top cover (8) and the outer fire ring (7). A flow guide port (9) is opened on the flow-guiding top cover (8), and a swirling flow guide bottom wall (10) is formed on the bottom wall of the mixing cavity near the flow guide port (9). The inner fire-distributing ring (6) is an annular cavity with an opening on the top surface, and an oxygen supply opening (11) is formed in the recess of one side wall.

2. The high-energy-saving and energy-efficient top-inlet furnace head according to claim 1, characterized in that: Both the first trachea (4) and the second trachea (5) have pipe connection ports (12).

3. The high-energy-saving and energy-efficient top-inlet furnace head according to claim 1, characterized in that: The lower end of the outer fire distribution ring (7) extends downward and is provided with two sets of connecting feet (13) that are connected to the top of the outer ring fire distribution chamber (3); The outer fire ring (7) is connected to the two sets of connecting feet (13) to form two sets of mixing chambers that are separated from each other. The guide port (9) is provided with two sets that correspond to the two sets of mixing chambers respectively. The bottom wall (10) of the swirling guide is a guide slope that is inclined and raised towards the guide port (9), and the gas flows in opposite directions in the two sets of guide ports (9).

4. The high-energy-saving and energy-efficient top-inlet furnace head according to claim 1, characterized in that: The outer end wall of the outer flame ring (7) is recessed inward at the top and has an outer flame head fitting groove (14); The top of the outer end wall of the inner flame ring (6) is also provided with an inner flame head fitting groove (15) that is recessed inward.

5. The high-energy-saving and energy-efficient top-inlet furnace head according to claim 3, characterized in that: The drainage top cover (8) is also provided with a drain outlet (16) that is matched with the drainage port (9); The outlet (16) is formed concavely along the circumference of the guide (9).

6. The high-energy-saving and energy-efficient top-inlet furnace head according to claim 1, characterized in that: A fixing seat (17) is also provided between the outer walls of the first air pipe (4) and the second air pipe (5).

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