A baking oven

Abstract

The invention discloses a novel oven, comprising a furnace body with a vacuum insulation cavity provided by heat-insulating cotton on the outside, an inner furnace provided in the furnace body, and a circular burner head and an air induced draft ring provided at the bottom of the furnace body, wherein the input end of the circular burner head is connected with an air inlet pipe, and the air inlet end of the air inlet pipe is provided with four pressurizing holes correspondingly, and the end of the air inlet pipe is provided with an elliptical tube at the connection between the circular burner head and the end of the air inlet pipe, and the inner ring of the circular burner head is provided with combustion holes at equal intervals; an inclined fixing plate is provided at the bottom of the air induced draft ring, and is provided on the upper part of the outer ring of the circular burner head through the fixing plate, and the upper part of the air induced draft ring is provided in contact with the bottom of the inner furnace; an upper cover is provided at the top of the inner furnace, a gap is reserved between the furnace body and the inner furnace, and an exhaust hole is provided at the top of the furnace body corresponding to the inner furnace. The novel oven has the advantages of fully burning gas in the furnace body, improving gas utilization, being beneficial to environmental protection, and improving the use effect of the oven, and solves the problem that the traditional oven cannot fully burn gas when in use and has poor use effect.

Description

Technical Field

[0001] The invention relates to the technical field of baking ovens, in particular to a novel baking oven. Background Art

[0002] The oven is a device that heats the outer side of the inner tank to form hot air inside the tank, and bakes and cooks food without open flame contact. It is generally a closed or semi-closed structure when heating. Ovens are also called baking ovens, ovens, and baking ovens. The open form of heating with hot air is called barbecue. Ovens can also be used to refer to devices that use hot gas for high-temperature treatment. The air intake pipe structure of traditional gas ovens does not have a pressure relief part, and the air intake pipes are all round. Such fire holes cannot evenly output the gas throughout the fire circle during combustion, resulting in the phenomenon of large and small fires. The gas is not fully burned to produce waste gas and black smoke, which is not environmentally friendly. In addition, there is not much exhaust space on the top of the traditional oven, which causes the furnace body temperature to be higher than the inner tank temperature, reducing the use effect of the oven and easily scalding the operator. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of oven, which has the advantages of fully burning the gas in the oven body, improving the thermal utilization rate of the gas, being beneficial to environmental protection, and improving the use effect of the oven, and solves the problems of traditional ovens that cannot fully burn the gas when in use, reducing production efficiency and poor use.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel oven, comprising a furnace body with a vacuum insulation cavity provided on the outside through heat preservation cotton, an inner furnace provided in the furnace body, and a circular burner head and an air induction ring provided at the bottom of the furnace body, the input end of the circular burner head is connected to an air intake pipe, the air intake end of the air intake pipe is provided with a mixed oxygen hole, an elliptical tube is provided at the connection between the end of the air intake pipe and the circular burner head, and combustion holes are equidistantly provided in the inner circle of the circular burner head;

[0005] The bottom of the induced draft ring is provided with an inclined fixing plate, which is arranged on the upper part of the outer ring of the annular furnace head through the fixing plate, and the upper part of the induced draft ring is arranged in contact with the bottom of the inner furnace;

[0006] An upper cover is provided on the top of the inner furnace, a gap is reserved between the furnace body and the inner furnace, and an exhaust hole is provided on the top of the furnace body corresponding to the inner furnace;

[0007] The outside of the furnace body is provided with a control box with electronic ignition, temperature and time control functions.

[0008] Furthermore, the combustion hole corresponding to the circular burner is installed below the draft ring, and a longitudinally structured fire guide hole is provided. The draft ring and the burner are a practical combination. The fire holes of the burner are arranged in an equidistant straight line array on the inner wall of the circular burner. When ignited, a fire ring is generated. With the help of the draft ring, the flame is concentrated and sprayed toward the outer wall of the furnace. The sprayed flame is blue, which will quickly heat up the inner tank. The flame height is 38CM, and the outer wall of the entire inner tank is surrounded by a fire wall. The heat conversion of the gas is maximized on the inner tank.

[0009] Furthermore, the inner wall of the induced draft ring is provided with a longitudinally structured fire guide groove corresponding to the combustion hole of the annular burner head, and the fixing plates are provided in three groups and are equidistantly arranged at the bottom of the induced draft ring.

[0010] Furthermore, the upper cover is installed by flipping with the top of the inner furnace through hinges, and a handle is provided at the open end of the upper cover. The handle and the top of the furnace body are correspondingly provided with locks for fixing the upper cover and the inner furnace.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention uses the induced draft ring and the annular burner head to make the flame spray directly to the inner tank. The annular burner head description: the copper burner nozzle mixes with oxygen and passes through the circular curved tube. The connection is converted into an oblong flat port to relieve gas pressure and evenly fill the entire outlet hole to ensure equal pressure. This is the best solution obtained after many technical practices. When the air pressure is equal, each outlet hole produces equal thermal efficiency during combustion, so that the side of the inner tank can be evenly heated. The induced draft ring cooperates with the annular burner head to make the internal furnace gap combustion space present a negative pressure airflow that is absorbed by the side of the inner tank and rises upward, achieving the effect of promoting catalysis and guiding the direction of the flame. This induced draft ring and the annular burner head are inseparable.

[0013] 2. The environmentally friendly inner furnace does not require traditional thermal insulation cotton, so that the excess heat generated by the inner furnace is isolated in the vacuum layer. As the heat increases, the hot air is discharged through the long holes in the upper panel to truly achieve vacuum insulation and heat dissipation, so that the outermost shell is between 70 degrees and 80 degrees to effectively protect the safety of operators.

[0014] 3. Electronic ignition and flameout protection, combined with the self-developed controller, can achieve intelligent ignition and intelligent heat preservation, and stop the fire at the set time. There will be no gas leakage or spraying. Safe use of the stove is the most important to protect personal and property safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the top view of the furnace body of the present invention;

[0017] Figure 3It is a schematic diagram of the structure of the circular burner head of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the induced draft ring of the present invention;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the induced draft ring of the present invention.

[0020] In the figure: 1. furnace body; 2. inner furnace; 3. circular burner head; 4. draft ring; 5. air inlet pipe; 6. oval tube; 7. combustion hole; 8. fixing plate; 9. upper cover; 10. exhaust hole; 11. flame guide groove; 12. handle; 13. lock; 14. control box. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5 A new type of oven comprises a furnace body 1 with a vacuum insulation cavity provided on the outside through heat preservation cotton, an inner furnace 2 provided in the furnace body 1, and a circular burner head 3 and an air induction ring 4 provided at the bottom of the furnace body 1. The input end of the circular burner head 3 is connected with an air inlet pipe 5, and the air inlet end of the air inlet pipe 5 is provided with four pressurizing holes 14 correspondingly. An elliptical tube 6 is provided at the connection between the end of the air inlet pipe 5 and the circular burner head 3, and the inner circle of the circular burner head 3 is provided with combustion holes 7 at equal intervals;

[0023] The bottom of the induced draft ring 4 is provided with an inclined fixing plate 8, and the fixing plate 8 is arranged on the upper part of the outer ring of the annular furnace head 3, and the upper part of the induced draft ring 4 is arranged in contact with the bottom of the inner furnace 2;

[0024] An upper cover 9 is provided on the top of the inner furnace 2, a gap is reserved between the furnace body 1 and the inner furnace 2, and an exhaust hole 10 is opened on the top of the furnace body 1 corresponding to the inner furnace 2;

[0025] A control box 14 with electronic ignition, temperature and time control functions is disposed outside the furnace body 1 .

[0026] Specifically, the inner wall of the induced draft ring 4 is provided with a longitudinally structured fire guide groove 11 corresponding to the combustion hole of the annular burner head 3 , and the fixing plates 8 are provided in three groups and are equidistantly arranged at the bottom of the induced draft ring 4 .

[0027] Specifically, the upper cover 9 is installed by flipping with the top of the inner furnace 2 through hinges, and a handle 12 is provided at the open end of the upper cover 9. The handle 12 and the top of the furnace body 1 are correspondingly provided with locks 13 for fixing the upper cover 9 and the inner furnace 2.

[0028] When in use, the connection position between the air inlet pipe 5 and the annular burner head 3 is connected to the oval tube 6 which has been deformed by compression. The oval tube 6 in this part plays a role of pressure relief. When the high-pressure combustion gas enters the oval tube 6 through the air inlet pipe 5, the part before the oval tube 6 is in a high-pressure state. After the pressure relief state of the oval tube 6, the gas inside the air inlet pipe 5 can be evenly distributed to each combustion hole 7 through pressure relief to be fully burned. By providing fixing plates 8 on the lower side of the induced draft ring 4, the fixing plates 8 are used to support and reserve a gap between the induced draft ring 4 and the annular burner head 3. It is convenient for air to enter, so that the combustion is more complete and more environmentally friendly under the action of the induced draft ring 4 above the circular burner head 3; exhaust holes 10 are evenly arranged on the top of the furnace body 1 corresponding to the top of the inner furnace 2. When the circular burner head at the bottom of the furnace body 1 is burning, the hot air generated by the combustion passes through the induced draft ring 4 to guide the fire to the wall of the inner furnace 2 for combustion. At the same time, because the exhaust holes 10 are arranged above the furnace body 1, the gas after combustion is discharged, and the direction of the fire is changed through the fire guide groove 11, so that the temperature on the furnace body 1 is much lower than the temperature on the surface of the inner furnace 2, thereby improving the effect of the oven.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A baking oven, comprising a furnace body (1) with a vacuum insulation cavity provided on the outside by heat-insulating cotton, an inner furnace (2) provided in the furnace body (1), and a circular burner head (3) and an air induction ring (4) provided at the bottom of the furnace body (1), characterized in that: The input end of the circular burner head (3) is connected to an air intake pipe (5), the air intake end of the air intake pipe (5) is provided with four pressurizing holes, the end of the air intake pipe (5) is connected to the circular burner head (3) with an elliptical tube (6), and the inner ring of the circular burner head (3) is provided with combustion holes (7) at equal intervals; The bottom of the induced draft ring (4) is provided with an inclined fixing plate (8), which is arranged on the upper part of the outer ring of the annular furnace head (3) through the fixing plate (8), and the upper part of the induced draft ring (4) is arranged in contact with the bottom of the inner furnace (2); An upper cover (9) is provided on the top of the inner furnace (2); a gap is reserved between the furnace body (1) and the inner furnace (2); and an exhaust hole (10) is provided on the top of the furnace body (1) corresponding to the inner furnace (2); The furnace body (1) is provided with a control box (14) on the outside thereof, which has electronic ignition, temperature and time control functions.

2. The oven according to claim 1, characterized in that: The inner wall of the induced draft ring (4) is provided with a longitudinally structured fire guide groove (11) corresponding to the combustion hole of the annular burner head (3), and three groups of the fixing plates (8) are arranged at equal distances at the bottom of the induced draft ring (4).

3. The oven according to claim 1, characterized in that: The upper cover (9) of the oven is installed by flipping with the top of the inner oven (2) via hinges; a handle (12) is provided at the open end of the upper cover (9); and locks (13) for fixing the upper cover (9) and the inner oven (2) are provided correspondingly at the handle (12) and the top of the oven body (1).

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