Rotational flow self-heat-dissipation type baking cover for baking

Abstract

The utility model discloses a rotational flow self-radiating type baking cover for baking, which relates to the technical field of baking and comprises a cover body, a burner connector is arranged on the cover body, a rotational flow air inlet and a rotational flow air channel are respectively arranged on two sides of the cover body, the rotational flow air inlet is communicated with the rotational flow air channel, and the burner connector is communicated with the rotational flow air channel. And the periphery of the rotational flow air channel is communicated with a rotational flow air branch channel. According to the rotational flow self-heat-dissipation type baking cover for baking, the heat bearing and heat dissipation capacity of the baking cover can be improved, the temperature of the baking cover in the working process can be reduced, the problem that the temperature of an original baking cover is too high when the baking cover is baked by high-temperature flue gas is solved, the service life of the baking cover is prolonged, heat of the high-temperature flue gas in the baking process can be effectively utilized, and the service life of the baking cover is prolonged. Waste of gas energy is avoided, the energy utilization rate is increased, and the baking effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of baking, in particular to a swirl self-heating baking cover for baking. Background Art

[0002] When the high-temperature flue gas generated by the existing roaster is discharged upward or flows to the roaster cover according to normal physical phenomena, most of the heat of the high-temperature flue gas will act on the roaster cover of the equipment itself. This not only fails to utilize the heat of the high-temperature flue gas to assist in baking heating, but also makes the operating temperature of the roaster cover very high, which not only wastes energy but also reduces the service life of the roaster cover.

[0003] For example, when an existing RH furnace baker uses an oxygen burner, the amount of flue gas generated by oxygen-containing combustion is relatively low (compared to conventional air combustion). When the baking cover is kept at a certain distance from the RH furnace (a common process requirement in current steel mills), the high-temperature flue gas is discharged upward according to conventional physical phenomena. As a result, most of the heat generated by the baker's combustion acts on the baking cover of the equipment itself, which not only fails to achieve the purpose of heating the bottom insertion tube of the RH furnace (the RH furnace is generally at a height of 10-15 meters, and the bottom insertion tube is very far away from the top), but also makes the operating temperature of the baking cover very high, which, as mentioned above, causes both energy waste and a shortened service life of the baking cover.

[0004] Therefore, it is necessary to design a new baking cover that can avoid the problem of being baked to too high a temperature by high-temperature flue gas, and can effectively utilize the heat of high-temperature flue gas and avoid wasting gas energy. Utility Model Content

[0005] In view of the above-mentioned shortcomings that currently exist, the utility model provides a swirl self-heating baking cover for baking, which can not only improve the heat dissipation capacity of the baking cover, avoid the problem of the original baking cover being baked to too high a temperature by high-temperature flue gas, and extend its service life, but also effectively utilize the heat of the high-temperature flue gas during baking, avoid the waste of gas energy, improve energy utilization rate, and ensure the baking effect.

[0006] In order to achieve the above-mentioned purpose, the embodiments of the present invention adopt the following technical solutions:

[0007] A swirl self-heating baking cover for baking includes a cover body, a burner connection port is provided on the cover body, a swirl air inlet and a swirl air channel are respectively provided on both sides of the cover body, the swirl air inlet and the swirl air channel are connected, and a swirl air branch channel is connected around the swirl air channel.

[0008] According to one aspect of the present invention, one end of the swirl air branch channel is connected to a swirl air constriction.

[0009] According to one aspect of the present invention, a receiving cavity is provided on the cover body, and the swirl air passage, the swirl air branch passage, and the swirl air constriction are all provided in the receiving cavity.

[0010] According to one aspect of the present invention, a heat dissipation fin is provided on the cover.

[0011] According to one aspect of the present invention, the heat dissipation fins are regularly arranged in a staggered manner vertically and horizontally on the cover.

[0012] According to one aspect of the present invention, a cooling water inlet and a cooling water outlet are provided on the cover body, a cooling water channel is provided in the cover body, and the cooling water inlet, the cooling water channel and the cooling water outlet are connected in sequence.

[0013] According to one aspect of the present invention, a partition is provided on the cover body, and the partition is used to separate the cooling water channel and divide it into two channels. A cooling water inlet and a cooling water outlet are provided at both ends of the partition.

[0014] According to one aspect of the present invention, a temperature measuring element connection port is provided on the cover.

[0015] According to one aspect of the present invention, the swirl air channel is an annular channel, which is concentrically arranged with the burner connection port, and the swirl air branch channels are evenly distributed around the swirl air channel.

[0016] According to one aspect of the present invention, the cover body is provided with a protective panel, a plurality of reinforcing plates, and a plurality of hanging rings.

[0017] The advantages of this invention include: when the high-temperature flue gas generated by combustion within the roaster is discharged upward toward the roasting cover by conventional physical phenomena, a swirl is formed by air entering the swirl air channel from the swirl air inlet. The swirl air then flows out of the swirl air branch channel, creating a swirl positive pressure. This pressure differential ensures that the high-temperature flue gas within the roaster returns to the roaster bottom, where it continues to heat the inserted tube through heat conduction, thus assisting in roasting. This prevents the roasting cover from being overheated by the high-temperature flue gas, effectively utilizes the heat from the high-temperature flue gas, and avoids wasting gas energy. The addition of a swirl air constriction provides a more standardized and rational structural design, and allows for pressurization and control of air direction, ensuring a stable pressure differential. The addition of heat dissipation fins enhances the roasting cover's heat dissipation capacity and structural stability, further extending the roasting cover's service life. The addition of a cooling water inlet, cooling water channel, and cooling water outlet further enhances the roasting cover's heat dissipation capacity, reduces the roasting cover's operating temperature, and further extends the roasting cover's service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0021] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model in the direction A;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention in the direction B.

[0024] The names corresponding to the serial numbers in the figure are as follows:

[0025] 1. Burner connection port; 2. Heat dissipation fin; 3. Temperature measuring element connection port; 4. Cooling water inlet; 5. Cooling water outlet; 6. Swirl air inlet; 7. Swirl air channel; 8. Swirl air branch channel; 9. Swirl air constriction; 10. Cooling water channel; 11. Partition; 12. Cover; 13. Protective enclosure; 14. Reinforcement plate; 15. Lifting ring; 16. Accommodation cavity. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. are based on the orientation or position relationship shown in the drawings, and are 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.

[0027] Example 1

[0028] like Figure 1 - Figure 5 As shown, a swirl self-heating baking cover for baking is installed above a baking device such as an RH furnace. The baking cover includes a cover body 12, a burner connection port 1, a swirl air inlet 6, a swirl air channel 7, a swirl air branch channel 8, a temperature measuring element connection port 3, a protective enclosure 13, several reinforcing plates 14, and several hanging rings 15. The cover body 12 is a disc-shaped plate structure with a cylindrical groove-shaped accommodating cavity 16 defined in the center of its bottom. The burner connection port 1 is a hollow cylindrical flange that communicates with the accommodating cavity 16. The burner connection port 1 is integrally or welded to the cover body 12 and is used to connect the entire baking cover to the burner (in the baking device). The swirl air inlet 6 and swirl air channel 7 are respectively located on the upper and lower sides of the cover 12, and the swirl air inlet 6 and swirl air channel 7 are connected, respectively, for air intake and circulation. The swirl air channel 7 is an annular channel, i.e., it is annular and concentric with the burner connection port 1, with one larger than the other, and one smaller than the other, and one lower than the other. The swirl air inlet 6 is tubular and welded to the annular swirl air channel 7 at the outer contour and internally connected to each other. The swirl air branch channels 8 are tubular and are spaced evenly around the swirl air channel 7, for air distribution and outflow. The swirl air channel 7 and the swirl air branch channels 8 are both located within the accommodating cavity 16. The temperature measuring element connection port 3 is fixed to the cover 12, connecting the entire baking cover to the temperature measuring element, facilitating the monitoring or real-time control of the baking cover temperature during baking. The protective panel 13 is an annular plate, integrally or welded to the cover 12, used to reinforce the cover 12 and protect the various components of the cover 12. Several reinforcement plates 14 are conventional triangular ribs, square plates, or other structures. Some are evenly spaced around the perimeter of the protective panel 13 and fixed between the panel 13 and the cover 12, while others are located within the panel 13 and fixed to the upper surface of the cover 12. These reinforcement plates 14 serve to strengthen the cover 12, or in other words, enhance the stability of the entire grill cover structure. Four lifting rings 15 are conventional ear plates, fixed to the cover 12, and used to suspend the entire grill cover.

[0029] The working principle of this embodiment is as follows:

[0030] During use, after the baking cover and the roaster are arranged and installed (such as after the burner and the burner connection port 1 on the baking cover body 12 are fixed), when the roaster performs combustion and baking, when the high-temperature flue gas generated by the combustion in the roaster is discharged upward according to conventional physical phenomena, that is, flows toward the baking cover, the air enters the swirl air channel 7 from the swirl air inlet 6 to form a swirl, and the swirl air flows out from the swirl air branch channel 8 to form a swirl positive pressure. The pressure difference ensures that the high-temperature flue gas in the roaster can return to the bottom of the roaster, that is, return to the bottom insertion tube to continue heat conduction heating the insertion tube, and continue to assist baking, thereby avoiding the problem of the original roasting cover being baked to an overly high temperature by the high-temperature flue gas, and effectively utilizing the heat of the high-temperature flue gas and avoiding the waste of gas energy.

[0031] The beneficial effects of this embodiment are:

[0032] 1. It can avoid the problem of the original baking cover being baked too high by high temperature smoke, and the service life of the baking cover is longer than that of ordinary baking devices;

[0033] 2. It can effectively utilize the heat of high-temperature flue gas during baking, avoid the waste of gas energy, improve energy utilization rate, and ensure baking effect.

[0034] Example 2

[0035] The difference between this embodiment and the first embodiment is that the baking cover further comprises a swirl air constriction 9 , which is connected to the outlet end of the swirl air branch channel 8 .

[0036] In this embodiment, the swirl air constriction 9 is welded or integrally formed at a position 60° downward from the end port of the swirl air branch channel 8, so that the air can be pressurized and the direction of the air can be controlled.

[0037] In this embodiment, the swirl air constriction 9 and the swirl air branch channel 8 are adapted in structure and quantity; the swirl air channel 7 , the swirl air branch channel 8 , and the swirl air constriction 9 are all arranged in the accommodating cavity 16 .

[0038] The working principle of this embodiment is as follows:

[0039] During use, after the baking cover and the roaster are arranged and installed (such as after the burner and the burner connection port 1 on the baking cover body 12 are fixed), the roaster performs combustion and baking work. When the high-temperature flue gas generated by the combustion in the roaster is discharged upward according to conventional physical phenomena, that is, flows toward the baking cover, the air enters the swirl air channel 7 from the swirl air inlet 6 to form a swirl, and the swirl air flows out through the swirl air branch channel 8 and the swirl air constriction 9 to form a swirl positive pressure. The pressure difference ensures that the high-temperature flue gas in the roaster can return to the bottom of the roaster, that is, return to the bottom insertion tube to continue heat conduction heating the insertion tube, and continue to assist baking, thereby avoiding the problem of the original baking cover being baked to an overly high temperature by the high-temperature flue gas, and effectively utilizing the heat of the high-temperature flue gas and avoiding the waste of gas energy.

[0040] The beneficial effects of this embodiment are:

[0041] 1. It can avoid the problem of the original baking cover being baked too high by high temperature smoke, and the service life of the baking cover is longer than that of the general baking cover;

[0042] 2. It can effectively utilize the heat of high-temperature flue gas during baking, avoiding the waste of gas energy, improving energy utilization rate and ensuring baking effect;

[0043] 3. By adding the swirl air constriction 9, the structural design is more standardized and reasonable, and the air can be pressurized and the direction of the air can be controlled, so as to ensure the pressure difference.

[0044] Example 3

[0045] The difference between this embodiment and the first embodiment is that the grill cover further includes a plurality of heat dissipation fins 2 , which are fixed on the cover body 12 .

[0046] In this embodiment, a plurality of heat dissipating fins 2 are regularly arranged in a staggered manner on the cover 12, and the two are fixed by welding; the heat dissipating fins 2 are used to increase the heat dissipation area of the grill cover and improve its service life. The heat dissipating fins 2 can also enhance the stress-bearing capacity of the grill cover and enhance the structural stability.

[0047] The working principle of this embodiment is as follows:

[0048] During use, after the baking cover and the baking device are arranged and installed (such as after the burner and the burner connecting port 1 on the baking cover body 12 are fixed), when the baking device is burning and baking, when the high-temperature flue gas generated by the combustion in the baking device is discharged upward according to conventional physical phenomena, that is, flows toward the baking cover, on the one hand, the air enters the swirl air channel 7 from the swirl air inlet 6 to form a swirl, and the swirl air flows out from the swirl air branch channel 8, forming a swirl positive pressure. The pressure difference ensures that the high-temperature flue gas in the baking device can return to the bottom of the baking device, that is, return to the bottom insertion tube to continue heat conduction heating the insertion tube, and continue to assist baking, thereby avoiding the problem of the original baking cover being baked to too high a temperature by the high-temperature flue gas, and effectively utilizing the heat of the high-temperature flue gas and avoiding the waste of gas energy; on the other hand, through the baking cover panel, that is, the heat dissipation fins 2 on the cover body 12, the heat bearing and heat dissipation capacity of the baking cover can be further improved, further avoiding the problem of the original baking cover being baked to too high a temperature by the high-temperature flue gas, reducing the working temperature of the baking cover, and increasing the service life of the baking cover.

[0049] The beneficial effects of this embodiment are:

[0050] 1. It can avoid the problem of the original baking cover being baked too high by high temperature smoke, and the service life of the baking cover is longer than that of the general baking cover;

[0051] 2. It can effectively utilize the heat of high-temperature flue gas during baking, avoiding the waste of gas energy, improving energy utilization rate and ensuring baking effect;

[0052] 3. By adding the heat dissipation fins 2, the heat bearing and heat dissipation capacity and structural stability of the grill cover can be improved, further extending the service life of the grill cover.

[0053] Example 4

[0054] The difference between this embodiment and the first embodiment is that the baking cover further includes a cooling water inlet 4, a cooling water channel 10, and a cooling water outlet 5 which are connected in sequence. The cooling water inlet 4 and the cooling water outlet 5 are fixed on the cover body 12, and the cooling water channel 10 is opened in the cover body 12.

[0055] In this embodiment, the cooling water inlet 4 and the cooling water outlet 5 are both hollow tubular structures; the cooling water channel 10 is annular and is located outside the accommodating cavity 16 .

[0056] In this embodiment, the grill cover further includes a partition 11 welded to the cover body 12. The partition 11 is used to separate the cooling water channel 10 and divide it into two semi-annular channels. There are two cooling water inlets 4 and two cooling water outlets 5, one on either side of one end of the partition 11 and the other on either side of the other end of the partition 11. The two cooling water inlets 4 and the two cooling water outlets 5 are at different heights.

[0057] The working principle of this embodiment is as follows:

[0058] During use, after the baking cover and the baking device are arranged and installed (such as after the burner and the burner connecting port 1 on the baking cover body 12 are fixed), when the baking device performs combustion and baking, when the high-temperature flue gas generated by the combustion in the baking device is discharged upward according to conventional physical phenomena, that is, flows toward the baking cover, on the one hand, the air enters the swirl air channel 7 from the swirl air inlet 6 to form a swirl, and the swirl air flows out from the swirl air branch channel 8, forming a swirl positive pressure. The pressure difference ensures that the high-temperature flue gas in the baking device can return to the bottom of the baking device, that is, return to the bottom insertion tube to continue heat conduction heating the insertion tube, and continue to assist baking, thereby avoiding the problem of the original baking cover being baked to too high a temperature by the high-temperature flue gas, and effectively utilizing the heat of the high-temperature flue gas and avoiding the waste of gas energy; on the other hand, by circulating the cooling water through the cooling water inlet 4, the cooling water channel 10, and the cooling water outlet 5 in sequence, the heat-bearing and heat-dissipating capacity of the baking cover can be further improved, further avoiding the problem of the original baking cover being baked to too high a temperature by the high-temperature flue gas, reducing the working temperature of the baking cover, and increasing the service life of the baking cover.

[0059] The beneficial effects of this embodiment are:

[0060] 1. It can avoid the problem of the original baking cover being baked too high by high temperature smoke, and the service life of the baking cover is longer than that of the general baking cover;

[0061] 2. It can effectively utilize the heat of high-temperature flue gas during baking, avoiding the waste of gas energy, improving energy utilization rate and ensuring baking effect;

[0062] 3. By adding the cooling water inlet 4, the cooling water channel 10, the cooling water outlet 5, etc., the heat bearing and heat dissipation capacity of the baking cover can be improved, the temperature of the baking cover during operation can be reduced, and the service life of the baking cover can be further extended.

[0063] Example 5

[0064] The swirl self-heating baking cover for baking in this embodiment includes all the structures of the baking covers in the first to fourth embodiments.

[0065] The beneficial effects of this embodiment are: through the structural arrangements such as the outer cooling water channel 10, the structural arrangements such as the inner swirl air channel 7 and the structural arrangements of the heat dissipation fins 2, the heat-bearing and heat-dissipating capacity of the baking cover can be improved and the temperature of the baking cover during operation can be reduced, thereby avoiding the problem of the original baking cover being baked to an excessively high temperature by high-temperature flue gas, extending the service life of the baking cover, and effectively utilizing the heat of the high-temperature flue gas during baking, thereby avoiding the waste of gas energy, improving energy utilization, and ensuring the baking effect.

[0066] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes, combinations, or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A swirl self-heating baking cover for baking, comprising a cover body (12), wherein the cover body (12) is provided with a burner connection port (1), characterized in that: A swirl air inlet (6) and a swirl air channel (7) are respectively provided on both sides of the cover body (12); the swirl air inlet (6) and the swirl air channel (7) are connected; and a swirl air branch channel (8) is connected around the swirl air channel (7).

2. The swirl self-heating baking cover for baking according to claim 1, characterized in that: One end of the swirl air branch channel (8) is connected to a swirl air constriction (9).

3. The swirl self-heating baking cover for baking according to claim 2, characterized in that: The cover body (12) is provided with a receiving cavity (16), and the swirl air channel (7), the swirl air branch channel (8), and the swirl air constriction (9) are all provided in the receiving cavity (16).

4. The swirl self-heating baking cover for baking according to claim 1, characterized in that: The cover body (12) is provided with a heat dissipation fin plate (2).

5. The swirl self-heating baking cover for baking according to claim 4, characterized in that: The heat dissipation fins (2) are regularly arranged in a staggered vertical and horizontal manner on the cover (12).

6. The swirl self-heating baking cover for baking according to claim 1, characterized in that: The cover body (12) is provided with a cooling water inlet (4) and a cooling water outlet (5), and a cooling water channel (10) is provided in the cover body (12). The cooling water inlet (4), the cooling water channel (10), and the cooling water outlet (5) are connected in sequence.

7. The swirl self-heating baking cover for baking according to claim 6, characterized in that: A partition (11) is provided on the cover (12), and the partition (11) is used to separate the cooling water channel (10) and divide it into two channels. Both ends of the partition (11) are provided with a cooling water inlet (4) and a cooling water outlet (5).

8. The swirl self-heating baking cover for baking according to any one of claims 1 to 7, characterized in that: The cover (12) is provided with a temperature measuring element connection port (3).

9. The swirl self-heating baking cover for baking according to claim 8, characterized in that: The swirl air channel (7) is an annular channel, which is arranged concentrically with the burner connection port (1), and the swirl air branch channels (8) are evenly distributed around the swirl air channel (7).

10. The swirl self-heating baking cover for baking according to claim 8, characterized in that: The cover body (12) is provided with a protective enclosure (13), a plurality of reinforcing plates (14), and a plurality of hanging rings (15).

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