Stove fire gathering ring mechanism and stove

Abstract

The utility model discloses a stove fire gathering ring mechanism and a stove, and belongs to the technical field of stoves. The fire gathering ring is arranged above the stove combustion chamber and is of an annular hollow structure, air outlet holes are formed in the inner side wall of the fire gathering ring, a gap exists between the outer side of the fire gathering ring and the stove combustion chamber, and the hollow structure of the fire gathering ring is provided with an air pipe connected to the air supply channel. According to the stove fire gathering ring mechanism, a suspended structure is adopted, the interior is hollow, a gap is formed between the outer side of a fire gathering ring and a combustion chamber, a secondary combustion gas supply channel is connected in the fire gathering ring, and secondary combustion is carried out at the fire gathering ring. When the temperature of the furnace body is high, the secondary combustion reaction is strong, the upward-rushing airflow on the inner side of the fire gathering ring forms an air multiplier, the airflow on the outer side of the fire gathering ring is sucked in, secondary combustion flames are more gathered, the temperature, the pressure and the flow speed are all improved, and the combustion efficiency is remarkably improved. When the temperature of the furnace body is low, the secondary combustion reaction is weak, the inner side and the outer side of the fire gathering ring exhaust gas simultaneously, and the gas inlet efficiency of the furnace is not affected.

Description

Technical Field

[0001] The utility model relates to the field of stoves, in particular to a stove fire gathering ring mechanism and a stove for increasing combustion efficiency. Background Art

[0002] Fuel stoves mainly include coal stoves, natural gas stoves, biomass pellet stoves, liquid fuel stoves, etc. Due to the convenience of fuel acquisition and storage, they have a wide market penetration rate as household heating and cooking appliances.

[0003] The stove fire gathering ring is a device installed on the upper part of the stove combustion chamber for gathering flames. The existing stove fire gathering ring also has the function of secondary combustion oxygen supply to improve the stove combustion efficiency.

[0004] Chinese patent CN112577072A discloses a highly efficient clean stove, wherein an air guide hood (i.e., a fire gathering ring) is provided on the stove core, and air supply holes are provided inside the air guide hood. Secondary air intake and combustion are performed through the air guide hood, thereby improving the combustion efficiency of the stove.

[0005] In order to improve the combustion efficiency, the diameter of the fire-gathering ring of the stove in the prior art is generally consistent with the furnace core mouth (furnace mouth), and is smaller than the middle and lower part of the combustion chamber to increase the air pressure in the fire-gathering ring and achieve the effect of gathering the flame. If the diameter of the fire-gathering ring is too small, the air outlet of the combustion chamber may become smaller, the internal pressure may increase, and the air intake of the combustion chamber may be insufficient.

[0006] Therefore, the diameter of the fire-gathering ring or the furnace core opening (furnace opening) is a very important part of the stove, which will affect the combustion efficiency and air intake efficiency of the stove, so as to achieve a balance between the combustion efficiency and the air intake efficiency. In the prior art, the fire-gathering ring is still insufficient in balancing the combustion efficiency and the air intake efficiency of the stove. Utility Model Content

[0007] The purpose of the utility model is to overcome the problem of difficulty in balancing the combustion efficiency and air intake efficiency of stoves in the above-mentioned background technology, and to provide a stove fire gathering ring mechanism and stove which can further improve the combustion efficiency of stoves.

[0008] In order to achieve the above purpose, the technical solution adopted is:

[0009] A fire gathering ring mechanism for a stove is arranged above a combustion chamber of the stove. The fire gathering ring is an annular hollow structure. An air outlet is arranged on the inner wall of the fire gathering ring. There is a gap between the outer side of the fire gathering ring and the combustion chamber of the stove. The hollow structure of the fire gathering ring is provided with an air pipe connected to an air supply channel.

[0010] Furthermore, the fire gathering ring is fixed above the combustion chamber of the stove through an air pipe.

[0011] Furthermore, there are multiple air pipes, which are distributed symmetrically on the fire gathering circle.

[0012] Furthermore, the fire gathering ring is made of high temperature resistant material.

[0013] Furthermore, the height of the fire gathering ring is equal to or slightly lower than the top of the stove combustion chamber.

[0014] Furthermore, the furnace is provided with an outer wall of the furnace body and an outer wall of the furnace body, and the gas pipe is connected to the gas supply channel between the outer wall of the furnace body and the inner wall of the furnace body.

[0015] Furthermore, an air outlet hole connected to the air supply channel is provided on the inner wall above the combustion chamber of the stove.

[0016] And a stove comprising the stove fire gathering ring mechanism.

[0017] The beneficial effects of adopting the above scheme are as follows: the stove fire gathering ring mechanism and stove of the present application adopt a suspended structure with a hollow interior, a gap between the outer side of the fire gathering ring and the combustion chamber, a secondary combustion air supply channel is connected in the fire gathering ring, and secondary combustion is performed at the fire gathering ring. When the temperature of the furnace body is high, the secondary combustion reaction is strong, and the airflow rushing upward from the inner side of the fire gathering ring forms an air multiplier, so that the airflow outside the fire gathering ring is sucked in, so that the secondary combustion flame is more concentrated, the temperature, pressure and flow rate are all improved, and the combustion efficiency is significantly improved. When the temperature of the furnace body is low, the secondary combustion reaction is weak, and the inner and outer sides of the fire gathering ring are exhausted at the same time, which will not affect the air intake efficiency of the stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of the fire gathering ring mechanism of the stove in the stove.

[0019] Figure 2 The utility model is a schematic diagram of the structure of the fire gathering ring mechanism of the stove in the stove body.

[0020] Figure 3 The utility model is a schematic diagram of the top view of the fire gathering ring mechanism of the stove in the stove body.

[0021] Figure 4 The utility model is a schematic diagram of air flow of the fire gathering ring mechanism of the stove during combustion.

[0022] In the figure, 1. fire gathering ring; 2. panel; 3. outer wall of furnace body; 4. inner wall of furnace body; 5. foot box; 6. air pipe. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is described clearly and completely below in conjunction with the specific embodiments of the utility model. The described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] It should be understood that the following terms included in the text may be for the convenience of description and simplification of description, or are merely based on the relationship shown in the legend, rather than indicating or implying a specific relationship that is required. Technical personnel in this field need to make a broad understanding in conjunction with the full text, and it cannot be interpreted as a limitation on the present technical solution.

[0025] Terms indicating directions or positional relationships, such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside”, “outside”, etc. Step numbering terms, such as “1”, “2”, “first”, “second”, etc. Quantity terms, such as “one”, “1”, “multiple”, etc. Positional relationship terms, such as “installed”, “connected”, “connected”, etc. Example 1

[0026] like Figure 1-Figure 3 A stove fire gathering ring mechanism and stove are arranged above the stove combustion chamber. The fire gathering ring 1 is an annular hollow structure. An air outlet is arranged on the inner wall of the fire gathering ring 1. There is a gap between the outer side of the fire gathering ring 1 and the stove combustion chamber. The hollow structure of the fire gathering ring 1 is provided with an air pipe 6 connected to the air supply channel. A smoke outlet is also provided between the top of the fire gathering ring 1 and the stove panel 2, connected to the smoke pipe. The air supply channel of the secondary air supply is connected to the foot box 5 from the outer wall 3 of the stove body and the inner wall 4 of the stove body, and air is drawn from the foot box 5. The fire gathering ring 1 is fixed to the inner side of the combustion chamber through the air pipe 6.

[0027] When fuel is added to the bottom of the stove combustion chamber and ignited, the fuel will usually undergo a gasification reaction first. For example, when coal and firewood are burned, they will first combine with oxygen to generate carbon monoxide, and at the same time produce smoke containing carbon, water and other components. Oxygen is consumed when the fuel is gasified, resulting in insufficient oxygen in the stove combustion chamber, causing incomplete combustion in the combustion chamber. At this time, if the temperature of the combustion chamber is low, the secondary combustion reaction of the combustible gas will also be relatively weak, and the smoke needs to be quickly discharged from the fire gathering ring or the furnace core mouth (furnace mouth), otherwise the furnace body will burn slowly or even go out due to insufficient oxygen. The fire gathering ring 1 of the present application will exhaust smoke both inside and outside, so that the furnace body can exhaust smoke quickly. After the fuel is gasified, if the temperature of the combustion chamber is high, the combustible gas will undergo a violent secondary combustion reaction on the inside of the fire gathering ring 1. The airflow rushing upward from the inside of the fire gathering ring forms an air multiplier, so that the airflow outside the fire gathering ring is sucked in, so that the secondary combustion flame is more concentrated, the temperature, pressure and flow rate are all improved, and the combustion efficiency is significantly improved. Figure 4 The utility model is a schematic diagram of air flow when the fire gathering ring mechanism of the stove performs intense secondary combustion under high temperature conditions.

[0028] Therefore, this stove fire-gathering ring mechanism can significantly improve the combustion efficiency when the furnace body is at a high temperature, and can significantly improve the smoke exhaust efficiency when the furnace body temperature is low. Example 2

[0029] On the basis of Example 1, the fire gathering ring 1 can be fixed above the combustion chamber of the stove through the gas pipe 6. In addition to being transversely fixed to the inner wall of the combustion chamber, the gas pipe 6 can also be replaced by other structures, such as being longitudinally fixed to the bottom of the stove body. The gas pipe 6 can be one or more. The multiple gas pipes can be distributed symmetrically on the center of the fire gathering ring 1, which helps to increase the gas supply and even the gas supply.

[0030] The temperature inside the fire gathering ring 1 is very high. In order to increase its service life, the fire gathering ring 1 is made of high temperature resistant materials, such as cast iron or alloy materials. The gas pipe 6 and one side of the furnace body can be welded, and the gas pipe 6 and one side of the fire gathering ring 1 can be connected by insertion. The height of the fire gathering ring 1 is equal to or slightly lower than the top of the furnace combustion chamber.

[0031] The inner wall above the combustion chamber of the stove is provided with an air outlet connected to the air supply channel, which can increase the air supply for secondary combustion. The stove is provided with an outer wall 3 of the furnace body and an inner wall 4 of the furnace body, and the air pipe 6 is connected to the air supply channel between the outer wall 3 of the furnace body and the inner wall 4 of the furnace body. The air supply channel for secondary combustion is designed to fit the furnace wall, which can increase the temperature of the secondary combustion air and improve the combustion efficiency. Example 3

[0032] A stove comprising the stove fire gathering ring mechanism described in the above-mentioned embodiments 1 and 2.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stove fire-gathering ring mechanism, arranged above the stove combustion chamber, characterized in that: The fire gathering ring (1) is an annular hollow structure. An air outlet is provided on the inner wall of the fire gathering ring (1). A gap exists between the outer side of the fire gathering ring (1) and the combustion chamber of the stove. The hollow structure of the fire gathering ring (1) is provided with an air pipe (6) connected to an air supply channel.

2. The stove fire gathering ring mechanism according to claim 1 is characterized in that: The fire gathering ring (1) is fixed above the combustion chamber of the stove via an air pipe (6).

3. The stove fire gathering ring mechanism according to claim 1 is characterized in that: A plurality of air pipes (6) are provided, which are centrally and symmetrically distributed on the fire gathering ring (1).

4. The stove fire gathering ring mechanism according to claim 1 is characterized in that: The fire gathering ring (1) is made of high temperature resistant material.

5. The stove fire gathering ring mechanism according to claim 1 is characterized in that: The height of the fire gathering ring (1) is equal to or slightly lower than the top of the stove combustion chamber.

6. The stove fire gathering ring mechanism according to claim 1 is characterized in that: The furnace is provided with a furnace body outer wall (3) and a furnace body inner wall (4), and the gas pipe (6) is connected to the gas supply channel between the furnace body outer wall (3) and the furnace body inner wall (4).

7. The stove fire gathering ring mechanism according to claim 1 is characterized in that: An air outlet hole connected to the air supply channel is arranged on the inner wall above the combustion chamber of the stove.

8. A stove having the stove fire gathering ring mechanism according to any one of claims 1 to 6.

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