CN112128795A - A kind of combustion furnace heat insulation structure - Google Patents

Abstract

The invention discloses a combustion-type furnace heat insulation structure, comprising a combustion chamber, an outer wall of the furnace and a burner, wherein the burner is installed at the lower part of the combustion chamber, the top of the combustion chamber is provided with a hot gas outlet, and the combustion chamber is located at the bottom of the combustion chamber. At the center of the furnace, there are multiple outer layers closed around the combustion chamber, and the outer layers increase in size from the inside to the outside, and the outermost outer layer is the outer wall of the furnace. The present invention gradually reduces the temperature of each layer from the inside to the outside, and as long as the number of layers is sufficient, the outermost layer can reach a safe temperature. The flowing air used for cooling will enter the furnace directly after the final temperature rise, and the heat will not be lost. Since there is no insulation layer to absorb and store heat, the initial furnace temperature rises very quickly; after the ceasefire, there is very little residual heat inside the furnace body, which is very energy-saving and environmentally friendly.

Description

A kind of combustion furnace heat insulation structure

technical field

The invention relates to the technical field of stoves, in particular to a combustion-type hearth heat insulation structure.

Background technique

At present, heating stoves are widely used in urban and rural areas and vast rural areas in my country, especially in the northern provinces of my country. In the past, coal-fired heating furnaces were mainly used. In order to solve the problem of air pollution and improve air quality, in recent years, the state has vigorously promoted and implemented the coal-to-gas policy. With the implementation of the coal-to-gas program, gas-fired heating furnaces have begun to be widely used.

In the process of burning fuel in the heating furnace, the inside of the furnace must maintain a very high temperature to ensure the continuous combustion reaction. If there is no insulation layer between the furnace and the outer wall, the temperature of the outer wall will be extremely high, which will easily cause burns. Therefore, , All the outside of the furnace need to be equipped with an insulating layer, on the one hand to maintain the high temperature of the furnace, and on the other hand to reduce the temperature of the outer wall of the furnace to ensure safe use.

In the traditional structure, thermal insulation materials are used to fill the gap between the combustion chamber and the outer wall to achieve thermal insulation. This method needs to be filled with very thick insulation material to meet the requirements, which makes the furnace body very large in volume and weight; because the insulation material will absorb and store heat, the initial heating rate of the furnace is reduced, and after the fire is stopped, the insulation material absorbs the stored heat. The heat is difficult to dissipate quickly, and there is still a lot of waste heat inside the furnace body, which is not conducive to energy saving.

To this end, we have introduced a combustion furnace insulation structure.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a combustion type furnace heat insulation structure to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a combustion type furnace heat insulation structure, comprising a combustion chamber, a furnace outer wall and a burner, the burner is installed in the lower part of the combustion chamber, and the top of the combustion chamber is provided with The hot gas outlet, the combustion chamber is located in the center of the furnace, and the combustion chamber is provided with a plurality of outer layers with a closed periphery. The outer layers of the outer layers increase in size from the inside to the outside, and the outermost outer layer is the outer wall of the furnace. .

Preferably, the upper and lower sides of each of the outer layers are respectively provided with air vents, and the gap between two adjacent outer layers forms a narrow channel.

Preferably, the cold air enters the bottom of the furnace, first passes through the channels in the outer wall of the outermost furnace, then passes through each channel in series from the outside to the inside, and finally enters the combustion chamber from the bottom, and burns with the fuel in the burner The resulting hot gas is discharged from the hot gas outlet.

Compared with the prior art, the present invention has the beneficial effects that the present invention gradually reduces the temperature of each layer from the inside to the outside, and as long as the number of layers provided is sufficient, the outermost layer can reach a safe temperature. The flowing air used for cooling will enter the furnace directly after the final temperature rise, and the heat will not be lost. Since there is no heat insulation layer to absorb and store heat, the initial furnace temperature rises very quickly; after the ceasefire, there is very little residual heat inside the furnace body, which is very energy-saving and environmentally friendly.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

In the picture: 1 combustion chamber, 2 outer wall of furnace, 3 outer layer, 4 cold air, 5 hot air outlet, 6 burner.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1, the present invention provides a technical solution: a combustion type furnace heat insulation structure, comprising a combustion chamber 1, a furnace outer wall 2 and a burner 6, the burner 6 is installed in the lower part of the combustion chamber 1, the The top of the combustion chamber 1 is provided with a hot gas outlet 5, the combustion chamber 1 is located in the center of the furnace, and the combustion chamber 1 is provided with a multi-layered outer layer 3 with a closed periphery. Increase, the outermost jacket layer 3 is the outer wall 2 of the furnace.

Specifically, the upper and lower sides of each outer layer 3 are respectively provided with air vents, and the gap between two adjacent outer layers 3 forms a narrow channel.

Specifically, when in use, the bottom of the furnace enters the cold air 4, first passes through the channels in the outer wall 2 of the outermost furnace, then passes through each channel in series from the outside to the inside, and finally enters the combustion chamber 1 from the bottom, and enters the combustion chamber 1 from the bottom. The burner 6 undergoes a combustion reaction with the fuel, and the generated hot gas is discharged from the hot gas outlet 5 .

Such a structure makes the temperature of each layer gradually decrease from the inside to the outside, and as long as the number of layers provided is sufficient, the outermost layer can reach a safe temperature. The flowing air used for cooling will enter the furnace directly after the final temperature rise, and the heat will not be lost. Since there is no insulation layer to absorb and store heat, the initial furnace temperature rises very quickly; after the ceasefire, there is very little residual heat inside the furnace body, which is very energy-saving and environmentally friendly.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. The utility model provides a combustion type furnace heat insulation structure, includes combustion chamber (1), furnace outer wall (2) and combustor (6), its characterized in that: the combustor (6) is installed in the lower part of combustion chamber (1), the top of combustion chamber (1) is equipped with steam outlet (5), the central point that combustion chamber (1) is located furnace puts, and combustion chamber (1) is equipped with peripheral confined overcoat layer (3) of multilayer outward, overcoat layer (3) is strengthened in proper order by interior each layer size outside to, and outmost overcoat layer (3) are furnace outer wall (2) promptly.

2. A combustion type hearth heat insulation structure according to claim 1, wherein: vent holes are respectively formed in the upper part and the lower part of each outer sleeve layer (3), and a narrow channel is formed in a gap between every two adjacent outer sleeve layers (3).

3. A combustion type hearth heat insulation structure according to claim 1, wherein: cold air (4) enters the bottom of the hearth, passes through the channels in the outer wall (2) of the outermost hearth, sequentially passes through each channel from outside to inside in series, finally enters the combustion chamber (1) from the bottom, and is subjected to combustion reaction with fuel in the combustor (6), and the generated incandescent gas is discharged from the hot gas outlet (5).

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