Fuel oil and gas hot blast stove

Abstract

The utility model discloses a fuel oil and gas hot blast stove which comprises a stove body, a fire damper is arranged in the stove body, a plurality of connecting rods are connected between the fire damper and the inner wall of the stove body, an air inlet grille is arranged in the middle of the side face of one end of the stove body, and a burner is arranged between the fire damper and the air inlet grille. A feeding flange is arranged in the middle of the air inlet grille, and an air outlet is formed in the middle of the side face of the other end of the furnace body. The fuel oil and gas hot blast stove has the advantages that fuel loss is reduced, heat efficiency is improved, and articles to be baked are prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustion furnaces, and in particular relates to an oil-fired and gas-fired hot air furnace. Background Art

[0002] Traditional hot air furnaces are often equipped with multiple circulating fans during the heat transmission process, so that the heat is ultimately indirectly generated into hot air for drying or heating operations. During this heating process, the unburned gas in the furnace is easily sucked away due to the suction effect of the circulating fan, which increases fuel loss and reduces thermal efficiency. At the same time, the high-temperature flame is long, and sparks are easy to enter the grain or material to be dried, causing baking quality problems and even property losses. Utility Model Content

[0003] The utility model aims to provide an oil-fired and gas-fired hot blast furnace to solve the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A fuel oil and gas hot air furnace comprises a furnace body, a fire baffle is arranged inside the furnace body, a plurality of connecting rods are connected between the fire baffle and the inner wall of the furnace body, an air inlet grille is arranged in the middle of the side surface of one end of the furnace body, a burner is arranged between the fire baffle and the air inlet grille, a feed flange is arranged in the middle position of the air inlet grille, and an air outlet is arranged in the middle of the side surface of the other end of the furnace body.

[0006] The working process and principle of the above structure are as follows:

[0007] The air enters the furnace body from the air inlet grille. A fire baffle is arranged inside the furnace body. On the one hand, it can block the length of the high-temperature flame at the burner to prevent sparks from entering the grain dryer. On the other hand, the fire baffle, which is always in a high-temperature state, can promote the secondary combustion of the unburned combustible gas in the burner to prevent it from being sucked away by the fan, thereby reducing fuel loss and improving thermal efficiency. It is fixed in the furnace body by a connecting rod. While fixing the wind baffle, it does not affect the passage of airflow. Finally, the airflow is discharged into the grain dryer through the air outlet.

[0008] Furthermore, a plurality of diffusion cones are arranged on the inner side surface of one end of the furnace body away from the burner.

[0009] The diffusion cone makes the air flow move smoothly, and the fast-flowing air flow can be evenly dispersed, thereby improving the heat exchange efficiency.

[0010] Furthermore, the air inlet grille is a circular plate-shaped structure, and a plurality of long holes are provided on the air inlet grille.

[0011] The setting of the long holes facilitates the stability and area of ​​the air intake.

[0012] Furthermore, the interior of the furnace body is a cylindrical cavity structure.

[0013] Furthermore, a connecting flange is provided at the air outlet.

[0014] The connecting flange is used to connect the grain dryer to facilitate stable air output and reduce air leakage.

[0015] Furthermore, the exterior of the furnace body is a rectangular parallelepiped structure, and four legs are provided on the lower surface of the furnace body.

[0016] Four feet are used to stabilize the furnace.

[0017] Furthermore, at least four connecting rods are provided, and the four connecting rods are distributed at intervals around the fire baffle.

[0018] Four connecting rods are installed at intervals around the fire baffle to ensure the stability of the installed fire baffle.

[0019] Furthermore, a porous partition is provided on the inner wall of the furnace body between the fire baffle and the air inlet grille.

[0020] The setting of the porous partition can rectify the gas, so that the flame in the combustion chamber is not disturbed by the air distribution and the combustion is stable.

[0021] Beneficial effect: The utility model allows air to enter the furnace body through the air inlet grille, and a fire baffle is arranged in the furnace body. On the one hand, it can block the length of the high-temperature flame at the burner to prevent sparks from entering the grain dryer. On the other hand, the fire baffle, which is always in a high-temperature state, can promote the secondary combustion of the unburned combustible gas in the burner to prevent it from being sucked away by the fan, thereby reducing fuel loss and improving thermal efficiency. The fire baffle is fixed in the furnace body by a connecting rod, and the airflow is not affected while the wind baffle is fixed. Finally, the airflow is discharged into the grain dryer through the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the main view of the overall structure of the utility model;

[0023] Figure 2 This is a left view of the overall structure of the utility model;

[0024] Figure 3 It is a side sectional view of the overall structure of the utility model;

[0025] Figure 4 It is the main sectional view of the overall structure of the utility model.

[0026] Figure numerals: 1. furnace body; 2. fire baffle; 3. connecting rod; 4. air inlet grille; 5. burner; 6. feed flange; 7. air outlet; 8. diffusion cone; 9. long hole; 10. connecting flange; 11. support foot; 12. porous partition. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0028] Example:

[0029] like Figure 1-Figure 4 As shown, this embodiment provides an oil and gas hot air furnace, including a furnace body 1, a fire baffle 2 is arranged inside the furnace body 1, a plurality of connecting rods 3 are connected between the fire baffle 2 and the inner wall of the furnace body 1, an air inlet grille 4 is arranged in the middle of the side surface of one end of the furnace body 1, a burner 5 is arranged between the fire baffle 2 and the air inlet grille 4, a feed flange 6 is arranged in the middle position of the air inlet grille 4, and an air outlet 7 is arranged in the middle of the side surface of the other end of the furnace body 1.

[0030] The working process and principle of the above structure are as follows:

[0031] Air enters the furnace body 1 from the air inlet grille 4. A fire baffle 2 is arranged in the furnace body 1. On the one hand, it can block the length of the high-temperature flame at the burner 5 to prevent sparks from entering the grain dryer. On the other hand, the fire baffle 2, which is always in a high-temperature state, can promote the secondary combustion of the unburned combustible gas in the burner 5 to prevent it from being sucked away by the fan, thereby reducing fuel loss and improving thermal efficiency. The fire baffle is fixed in the furnace body 1 by a connecting rod 3. While fixing the wind baffle, it does not affect the passage of airflow. Finally, the airflow is discharged into the grain dryer through the air outlet 7.

[0032] In another embodiment of the present invention, a plurality of diffusion cones 8 are provided on the inner side surface of the furnace body 1 at one end away from the burner 5 .

[0033] The diffusion cone 8 allows the airflow to move smoothly, and the fast-flowing airflow can be evenly dispersed, thereby improving the heat exchange efficiency.

[0034] In another embodiment of the present invention, Figure 2 As shown, the air inlet grille 4 is a circular plate-shaped structure, and a plurality of long holes 9 are provided on the air inlet grille 4.

[0035] The arrangement of the long holes 9 facilitates the stability and area of ​​the air intake.

[0036] In another embodiment of the present invention, Figure 3 and Figure 4 As shown, the interior of the furnace body 1 is a cylindrical cavity structure.

[0037] In another embodiment of the present invention, Figure 1 As shown, a connecting flange 10 is provided at the air outlet 7 .

[0038] The connecting flange 10 is used to connect the grain dryer to facilitate stable air discharge and reduce air leakage.

[0039] In another embodiment of the present invention, Figure 1 and Figure 2 As shown, the furnace body 1 is in a rectangular parallelepiped structure on the outside, and four legs 11 are provided on the lower surface of the furnace body 1 .

[0040] The four legs 11 are used for stably placing the furnace body 1 .

[0041] In another embodiment of the present invention, Figure 3 As shown, at least four connecting rods 3 are provided, and the four connecting rods 3 are distributed at intervals around the fire baffle 2 .

[0042] Four connecting rods 3 are installed at intervals around the fire baffle 2 to ensure the stability of the fire baffle 2 installed thereon.

[0043] In another embodiment of the present invention, Figure 4 As shown, a porous partition plate 12 is arranged on the inner wall of the furnace body 1 between the fire baffle 2 and the air inlet grille 4 .

[0044] The arrangement of the porous partition 12 can rectify the gas, so that the flame in the combustion chamber is not disturbed by the air distribution and the combustion is stable.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fuel oil and gas hot air furnace, characterized in that: It includes a furnace body, a fire baffle is arranged inside the furnace body, a plurality of connecting rods are connected between the fire baffle and the inner wall of the furnace body, an air inlet grille is arranged in the middle of the side surface of one end of the furnace body, a burner is arranged between the fire baffle and the air inlet grille, a feed flange is arranged in the middle position of the air inlet grille, and an air outlet is arranged in the middle of the side surface of the other end of the furnace body.

2. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: A plurality of diffusion cones are arranged on the inner side surface of one end of the furnace body away from the burner.

3. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: The air inlet grille is a circular plate-shaped structure, and is provided with a plurality of long holes.

4. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: The interior of the furnace body is a cylindrical cavity structure.

5. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: A connecting flange is arranged at the air outlet.

6. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: The furnace body is externally in a rectangular parallelepiped structure, and four legs are arranged on the lower surface of the furnace body.

7. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: At least four connecting rods are provided, and the four connecting rods are distributed at intervals around the fire baffle.

8. The oil-fired and gas-fired hot blast stove according to claim 1, characterized in that: A porous partition is arranged on the inner wall of the furnace body between the fire baffle and the air inlet grille.

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