Oxy-fuel combustion baking device

Abstract

The invention discloses an all-oxygen combustion baking device which comprises a cover body, and a bottom fixing supporting block is fixedly connected to the bottom of the cover body. The all-oxygen combustion baking device has the beneficial effects that by arranging a ventilation barrel, ventilation holes and branch gas conveying pipes, gas conveyed into the ventilation barrel is exhausted through the ventilation holes, and oxygen enters an inner gas mixing box through the branch gas conveying pipes after being divided; by arranging a heat-conducting fin, a temperature-conducting ring, an inner heat-conducting plate and a heat-conducting net, waste gas enters the cover body through a first communicating gas channel and a second communicating gas channel, the inner heat-conducting plate and the heat-conducting net are heated through heat conduction of the heat-conducting fin and the temperature-conducting ring, and the heat-conducting efficiency is improved. Fuel gas and oxygen in the inner gas mixing box are preheated, the combustion temperature and the overall heating efficiency are improved by fully utilizing preheating, and the baking performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of baking devices, and particularly to an all-oxygen combustion baking device. Background Art

[0002] All-oxygen combustion baking is an efficient heating technology mainly applied to baking equipment. By using pure oxygen as the combustion-supporting gas, it can improve the combustion efficiency and heating speed. All-oxygen combustion baking refers to a baking method that uses pure oxygen (usually with the oxygen concentration for combustion support reaching over 90%) as the combustion gas. Due to the extremely high combustion efficiency of pure oxygen, the all-oxygen baking device can quickly reach a high temperature and complete the baking process in a short time. The working principle of all-oxygen combustion baking is based on the full mixing of oxygen and fuel and a strong combustion reaction. In the all-oxygen baking device, oxygen is supplied to the combustion chamber through an accurate control system and is fully mixed with fuel (such as natural gas) to achieve strong combustion. This combustion method not only increases the flame temperature but also optimizes the heat transfer, making the baking process more efficient. However, the current all-oxygen combustion baking devices have the problem of uneven mixing of gas and oxygen during the mixing process. This not only affects the combustion efficiency but may also lead to incomplete combustion, and fails to make full use of preheating to increase the combustion temperature and overall heating efficiency, thus restricting the optimization and improvement of its baking performance to a certain extent. Summary of the Invention

[0003] The purpose of the present invention is to provide an all-oxygen combustion baking device to solve the problem proposed in the above background art that the current all-oxygen combustion baking devices have the problem of uneven mixing of gas and oxygen during the mixing process. This not only affects the combustion efficiency but may also lead to incomplete combustion, and fails to make full use of preheating to increase the combustion temperature and overall heating efficiency, thus restricting the optimization and improvement of its baking performance to a certain extent.

[0004] To achieve the above object, the present invention provides the following technical solution: A fully oxygen combustion baking device, including a cover body, a bottom fixed support block is fixedly connected to the bottom of the cover body, a top fixed support block is fixedly connected to the top of the cover body, an internal mixing gas box is fixedly connected to the inside of the cover body, the bottom of the internal mixing gas box is fixedly connected to the bottom fixed support block, a temperature guiding ring is fixedly connected to the outside of the internal mixing gas box, a plurality of heat conducting sheets are fixedly connected to the outside of the temperature guiding ring at equal intervals, a heat conducting net is fixedly connected to the inside of the temperature guiding ring, the heat conducting net is fixedly connected to the internal mixing gas box, an air vent barrel is fixedly connected to the inside of the internal mixing gas box, a plurality of air vent holes are arranged at equal intervals inside the air vent barrel, a gas pipe is fixedly connected to the inside of the cover body and the top fixed support block, the bottom end of the gas pipe is fixedly connected to the air vent barrel, the gas pipe is fixedly connected to the internal mixing gas box, external air vent boxes are symmetrically fixedly connected to the outside of the top fixed support block, a plurality of sub air pipes are symmetrically fixedly connected to the inside of the top fixed support block, the sub air pipes are communicated with the external air vent boxes, an oxygen inlet pipe is fixedly connected to the outside of the external air vent boxes, a plurality of first communication air channels are arranged at equal intervals inside the bottom fixed support block, a plurality of second communication air channels are arranged at equal intervals inside the bottom fixed support block, an air outlet pipe is fixedly connected to the inside of the bottom fixed support block, and the top end of the air outlet pipe is fixedly connected to the internal mixing gas box.

[0005] As a preferred solution of the present invention: A fixed bottom cylinder cooperating with the air outlet pipe is fixedly connected to the bottom of the bottom fixed support block, an installation sealing cover is installed at the bottom of the fixed bottom cylinder, an installation opening cooperating with the fixed bottom cylinder is opened at the top of the installation sealing cover, and a combustion head is fixedly connected to the bottom of the installation sealing cover.

[0006] As a preferred solution of the present invention: A bottom fixed cylinder is fixedly connected to the bottom of the bottom fixed support block, the bottom fixed cylinder is located outside the fixed bottom cylinder, and the bottom fixed cylinder cooperates with the installation sealing cover.

[0007] As a preferred solution of the present invention: A plurality of fixed screws are fixedly connected to the bottom of the bottom fixed cylinder at equal intervals, a plurality of installation hole blocks cooperating with the fixed screws are fixedly connected to the outside of the installation sealing cover at equal intervals, and fixing nuts cooperating with the fixed screws are arranged below the installation hole blocks.

[0008] As a preferred solution of the present invention: A main oxygen pipe is arranged on one side of the cover body, a gas distribution head is fixedly connected to one end of the main oxygen pipe, and the gas distribution head is fixedly connected to the oxygen inlet pipe.

[0009] As a preferred solution of the present invention: An electromagnetic valve is installed on the oxygen inlet pipe.

[0010] As a preferred solution of the present invention: An igniter is installed inside the combustion head.

[0011] As a preferred embodiment of the present invention: a second filter screen is fixedly connected to the inner side of the first communication air duct, and a first filter screen is fixedly connected to the inner side of the second communication air duct.

[0012] As a preferred embodiment of the present invention: a plurality of inner heat conducting plates are fixedly connected to the inner side of the temperature guiding ring at equal intervals, and the inner heat conducting plates are fixedly connected to the inner gas mixing box.

[0013] As a preferred embodiment of the present invention: a top fixing support is fixedly connected to the top of the top fixing support block, an exhaust gas outlet pipe is fixedly connected to the inside of the cover body, and the exhaust gas outlet pipe is externally connected to a heat exchanger.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing an air vent barrel, air vent holes and a distribution gas pipe, the gas transported into the air vent barrel is discharged through the air vent holes, and after the oxygen is split, it enters the inner gas mixing box through each distribution gas pipe, so that the gas and oxygen are fully mixed, and after being mixed evenly, it is discharged through the air outlet pipe, improving the combustion efficiency; by providing heat conducting sheets, a temperature guiding ring, inner heat conducting plates and a heat conducting net, the exhaust gas enters the cover body through the first communication air duct and the second communication air duct, and the inner heat conducting plates and the heat conducting net are heated by the heat conduction of the heat conducting sheets and the temperature guiding ring, preheating the gas and oxygen in the inner gas mixing box, making full use of the preheating to increase the combustion temperature and the overall heating efficiency, and improving the baking performance. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is of the present invention Figure 1 the enlarged view at A in;

[0017] Figure 3 is of the present invention Figure 1 the enlarged view at B in;

[0018] Figure 4 is the bottom view of the inner gas mixing box of the present invention;

[0019] Figure 5 is the bottom view of the bottom fixing support block of the present invention;

[0020] Figure 6 is the top view of the outer air vent box of the present invention.

[0021] In the figure: 1. Cover body; 2. Bottom fixed support block; 3. Top fixed support block; 4. Top fixed frame; 5. Outer ventilation box; 6. Oxygen inlet pipe; 7. Solenoid valve; 8. Sub-distribution gas pipe; 9. Inner mixing gas box; 10. Temperature guiding ring; 11. Gas pipe; 12. Ventilation barrel; 13. Ventilation hole; 14. Heat conducting fin; 15. Inner heat conducting plate; 16. Heat conducting net; 17. Air outlet pipe; 18. First communication air passage; 19. Second communication air passage; 20. First filter screen; 21. Second filter screen; 22. Fixed bottom cylinder; 23. Bottom fixed cylinder; 24. Installation port; 25. Installation sealing cover; 26. Fixed screw; 27. Installation hole block; 28. Fixed nut; 29. Burner head; 30. Igniter; 31. Main oxygen pipe; 32. Gas distribution head; 33. Exhaust gas outlet pipe. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all 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.

[0023] Please refer to Figures 1 to 6 , the present invention provides a technical solution: an all-oxygen combustion baking device, including a cover body 1, a bottom fixed support block 2 is fixedly connected to the bottom of the cover body 1, a top fixed support block 3 is fixedly connected to the top of the cover body 1, an inner mixing gas box 9 is fixedly connected to the inside of the cover body 1, the bottom of the inner mixing gas box 9 is fixedly connected to the bottom fixed support block 2, a temperature guiding ring 10 is fixedly connected to the outside of the inner mixing gas box 9, a plurality of heat conducting fins 14 are fixedly connected to the outside of the temperature guiding ring 10 at equal intervals, a heat conducting net 16 is fixedly connected to the inside of the temperature guiding ring 10, the heat conducting net 16 is fixedly connected to the inner mixing gas box 9, a ventilation barrel 12 is fixedly connected to the inside of the inner mixing gas box 9, a plurality of ventilation holes 13 are equidistantly opened in the inside of the ventilation barrel 12, a gas pipe 11 is fixedly connected to the inside of the cover body 1 and the top fixed support block 3, the bottom end of the gas pipe 11 is fixedly connected to the ventilation barrel 12, the gas pipe 11 is fixedly connected to the inner mixing gas box 9, outer ventilation boxes 5 are symmetrically fixedly connected to the outside of the top fixed support block 3, a plurality of sub-distribution gas pipes 8 are symmetrically fixedly connected to the inside of the top fixed support block 3, the sub-distribution gas pipes 8 are communicated with the outer ventilation boxes 5, an oxygen inlet pipe 6 is fixedly connected to the outside of the outer ventilation boxes 5, a plurality of first communication air passages 18 are equidistantly opened in the inside of the bottom fixed support block 2, a plurality of second communication air passages 19 are equidistantly opened in the inside of the bottom fixed support block 2, an air outlet pipe 17 is fixedly connected to the inside of the bottom fixed support block 2, the top end of the air outlet pipe 17 is fixedly connected to the inner mixing gas box 9, the exhaust gas enters the cover body 1 through the first communication air passage 18 and the second communication air passage 19, and the heat conducting net 16 is heat-conducted through the heat conducting fins 14 and the temperature guiding ring 10, and the gas and oxygen in the inner mixing gas box 9 are pre-heated.

[0024] Among them, a fixed bottom cylinder 22 that mates with the air outlet pipe 17 is fixedly connected to the bottom of the bottom fixed support block 2. An installation sealing cover 25 is installed at the bottom of the fixed bottom cylinder 22. An installation opening 24 that mates with the fixed bottom cylinder 22 is provided at the top of the installation sealing cover 25. A combustion head 29 is fixedly connected to the bottom of the installation sealing cover 25. The installation sealing cover 25 is installed and fixed on the outside of the fixed bottom cylinder 22 through the installation opening 24.

[0025] Among them, a bottom fixed cylinder 23 is fixedly connected to the bottom of the bottom fixed support block 2. The bottom fixed cylinder 23 is located outside the fixed bottom cylinder 22. The bottom fixed cylinder 23 cooperates with the installation sealing cover 25, and the outside of the bottom fixed cylinder 23 and the installation sealing cover 25 cooperate to improve the installation sealing effect.

[0026] Among them, a plurality of fixed screw rods 26 are fixedly connected to the bottom of the bottom fixed cylinder 23 at equal intervals. A plurality of installation hole blocks 27 that cooperate with the fixed screw rods 26 are fixedly connected to the outside of the installation sealing cover 25 at equal intervals. A fixing nut 28 that cooperates with the fixed screw rods 26 is provided below the installation hole blocks 27. The fixed screw rods 26 pass through the installation hole blocks 27, and the fixing nut 28 is threadedly installed on the outside of the fixed screw rods 26 to fix the installation positions of the installation hole blocks 27, the installation sealing cover 25, and the combustion head 29.

[0027] Among them, a main oxygen pipe 31 is provided on one side of the cover body 1. A gas distribution head 32 is fixedly connected to one end of the main oxygen pipe 31. The gas distribution head 32 is fixedly connected to the oxygen inlet pipe 6. Oxygen enters the gas distribution head 32 through the main oxygen pipe 31, is shunted through the external ventilation box 5 connected by the gas distribution head 32, enters the two external ventilation boxes 5, and is shunted into each through the respective distribution gas pipes 8 and is fully mixed with the fuel gas.

[0028] Among them, a solenoid valve 7 is installed on the oxygen inlet pipe 6 to control and process the oxygen supply through the solenoid valve 7.

[0029] Among them, an igniter 30 is installed inside the combustion head 29 to ignite the fuel gas through the igniter 30 to complete the combustion and baking process.

[0030] Among them, a second filter screen 21 is fixedly connected to the inside of the first communication air passage 18, and a first filter screen 20 is fixedly connected to the inside of the second communication air passage 19. The inside of the first communication air passage 18 is protected from impurities through the second filter screen 21, and the inside of the second communication air passage 19 is protected from impurities through the first filter screen 20.

[0031] Among them, a plurality of internal heat conducting plates 15 are fixedly connected to the inside of the temperature guiding ring 10 at equal intervals. The internal heat conducting plates 15 are fixedly connected to the internal mixing gas box 9. The temperature guiding ring 10 conducts heat to the internal heat conducting plates 15 to preheat the gas inside the internal mixing gas box 9.

[0032] Among them, a top fixing bracket 4 is fixedly connected to the top of the top fixing support block 3, and an exhaust gas outlet pipe 33 is fixedly connected inside the cover body 1. The exhaust gas outlet pipe 33 is externally connected to a heat exchanger. The exhaust gas is discharged through the exhaust gas outlet pipe 33, and the heat in the exhaust gas is recovered and processed by the heat exchanger to avoid heat waste.

[0033] Specifically, during use, the installation sealing cover 25 and the installation opening 24 are respectively matched with the bottom fixing cylinder 23 and the fixed bottom cylinder 22. The fixing screw 26 passes through the installation hole block 27, and the fixing nut 28 is thread-fixed to the outer side of the fixing screw 26 to fix the installation positions of the installation sealing cover 25 and the burner head 29. The gas supply pipe 11 is externally connected to a gas supply device, the main oxygen pipe 31 is connected to an external oxygen supply device, the oxygen supplied by the main oxygen pipe 31 is shunted by the gas distribution head 32, enters the outer ventilation box 5 through the oxygen inlet pipe 6, enters each branch gas transmission pipe 8 through the outer ventilation box 5, the oxygen enters the inner mixing box 9 through each branch gas transmission pipe 8, the gas enters the ventilation barrel 12 through the gas supply pipe 11, and enters the inner mixing box 9 through each ventilation hole 13 opened in the ventilation barrel 12. The gas and oxygen in the inner mixing box 9 are mixed evenly, ejected through the air outlet pipe 17, and ignited by the igniter 30 to complete the combustion and baking work. The combustion exhaust gas enters the cover body 1 through the first connecting air duct 18 and the second connecting air duct 19. The exhaust gas enters the cover body 1 to heat the heat conducting sheet 14 and the temperature guiding ring 10. After heating, heat conduction is carried out through the inner heat conducting plate 15 and the heat conducting net 16 to preheat the gas and oxygen in the inner mixing box 9. Then the exhaust gas is discharged through the exhaust gas outlet pipe 33 and undergoes heat exchange treatment through an external heat exchanger to recover and utilize the heat of the exhaust gas.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle part", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0035] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

[0036] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A full oxygen combustion baking device, comprising a cover body (1), characterized in that: The bottom of the cover body (1) is fixedly connected to a bottom fixed support block (2), the top of the cover body (1) is fixedly connected to a top fixed support block (3), the inside of the cover body (1) is fixedly connected to an inner gas mixing box (9), the bottom of the inner gas mixing box (9) is fixedly connected to the bottom fixed support block (2), the outer side of the inner gas mixing box (9) is fixedly connected to a temperature conducting ring (10), the outer side of the temperature conducting ring (10) is fixedly connected to a plurality of heat conducting sheets (14) at equal intervals, the inner side of the temperature conducting ring (10) is fixedly connected to a heat conducting net (16), the heat conducting net (16) is fixedly connected to the inner gas mixing box (9), the inside of the inner gas mixing box (9) is fixedly connected to a ventilation barrel (12), the inside of the ventilation barrel (12) is provided with a plurality of ventilation holes (13) at equal intervals, the inside of the cover body (1) and the top fixed support block (3) are fixedly connected A gas pipe (11) is provided, the bottom end of the gas pipe (11) is fixedly connected to a ventilation barrel (12), the gas pipe (11) is fixedly connected to an internal gas mixing box (9), the outer side of the top fixed support block (3) is symmetrically fixedly connected to an external gas mixing box (5), the inner side of the top fixed support block (3) is symmetrically fixedly connected to a plurality of branch gas pipes (8), the branch gas pipes (8) are connected to the external gas mixing box (5), the outer side of the external gas mixing box (5) is fixedly connected to an oxygen inlet pipe (6), the inner side of the bottom fixed support block (2) is provided with a plurality of No. 1 connecting air passages (18) at equal intervals, the inner side of the bottom fixed support block (2) is provided with a plurality of No. 2 connecting air passages (19) at equal intervals, the inner side of the bottom fixed support block (2) is fixedly connected to an outlet pipe (17), the top end of the outlet pipe (17) is fixedly connected to the internal gas mixing box (9).

2. The oxyfuel combustion baking device according to claim 1, characterized in that: The bottom of the bottom fixed support block (2) is fixedly connected to a fixed bottom cylinder (22) that cooperates with the air outlet pipe (17); the bottom of the fixed bottom cylinder (22) is installed with a mounting seal cover (25); the top of the mounting seal cover (25) is provided with a mounting opening (24) that cooperates with the fixed bottom cylinder (22); and the bottom of the mounting seal cover (25) is fixedly connected to a combustion head (29).

3. The oxyfuel combustion baking device according to claim 2, characterized in that: The bottom of the bottom fixed support block (2) is fixedly connected to a bottom fixed cylinder (23), the bottom fixed cylinder (23) is located outside the fixed bottom cylinder (22), and the bottom fixed cylinder (23) cooperates with the installation sealing cover (25).

4. The oxyfuel combustion baking device according to claim 3, characterized in that: The bottom of the bottom fixing cylinder (23) is equidistantly fixedly connected to a plurality of fixing screws (26), the outer side of the mounting sealing cover (25) is equidistantly fixedly connected to a plurality of mounting hole blocks (27) that cooperate with the fixing screws (26), and a fixing nut (28) that cooperates with the fixing screws (26) is arranged below the mounting hole block (27).

5. The oxyfuel combustion baking device according to claim 4, characterized in that: A main oxygen pipe (31) is provided on one side of the cover body (1); one end of the main oxygen pipe (31) is fixedly connected to a gas distributor (32); and the gas distributor (32) is fixedly connected to the oxygen inlet pipe (6).

6. The oxyfuel combustion baking device according to claim 5, characterized in that: A solenoid valve (7) is installed on the oxygen inlet pipe (6).

7. The oxyfuel combustion baking device according to claim 6, characterized in that: An igniter (30) is installed inside the combustion head (29).

8. The oxyfuel combustion baking device according to claim 7, characterized in that: A No. 2 filter (21) is fixedly connected to the inner side of the No. 1 communicating air passage (18), and a No. 1 filter (20) is fixedly connected to the inner side of the No. 2 communicating air passage (19).

9. The oxyfuel combustion baking device according to claim 8, characterized in that: A plurality of inner heat conducting plates (15) are fixedly connected at equal intervals to the inner side of the temperature conducting ring (10), and the inner heat conducting plates (15) are fixedly connected to the inner gas mixing box (9).

10. The oxyfuel baking device according to claim 9, characterized in that: The top of the top fixed support block (3) is fixedly connected to a top fixed frame (4), the interior of the cover body (1) is fixedly connected to an exhaust gas outlet pipe (33), and the exhaust gas outlet pipe (33) is externally connected to a heat exchanger.

Images