Uniform heating device for furnace body

Abstract

The utility model discloses a furnace body uniform heating device which comprises an outer shell, an inner shell body is fixedly connected inside the outer shell, a hollow inner cavity is formed between the inner shell body and the outer shell, air supply rings are embedded in the two sides of the surface of the inner shell body, a plurality of through holes are formed in the surfaces of the air supply rings, and the through holes are communicated with the inner shell body. The inner side of the through hole communicates with the interior of the inner shell, a fan is arranged on the right side of the outer shell, the output end of the fan communicates with the interior of the outer shell, a transmission structure is arranged between the outer shell and the inner shell, and the transmission structure can control the air supply ring to rotate and improve the uniformity of air flow injected into the through hole. Cold air is preheated and buffered through the hollow inner cavity, low-temperature airflow is prevented from directly impacting the surface of the furnace body, the local temperature difference is reduced, the positions of the through holes are dynamically changed through the rotation design of the air supply ring, the airflow is evenly injected into the inner cavity of the furnace body from multiple directions and multiple angles, and the heating uniformity is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of furnace body heating, in particular to a furnace body even heating device. BACKGROUND

[0002] Furnace body heating refers to the process of heating the furnace body or the materials in the furnace by a specific heat source, which is widely used in the industrial field. Some of them release heat by burning fuels such as natural gas and liquefied gas, and have the effects of high thermal efficiency and fast heating.

[0003] For example, the patent application number of the patent disclosed by China patent network is: 202020197164.9, and the patent name is: even heating type oven body, which comprises an oven body and a heating cavity. The middle part of the oven body forms an accommodating cavity with an open top, and the oven body is fixed inside the heating cavity. The side of the heating cavity is connected with a feeding pipe for conveying fuel and an air inlet pipe for surrounding air supply to the heating cavity, and the air outlet direction of the air inlet pipe surrounds the outside of the oven body. The utility model adopts the isolated type outer surrounding type heating cavity structure to cover the food to be baked in the oven body. The heat in the heating cavity is evenly distributed by forming a surrounding air flow, so that the temperature at each position in the oven body is approximately the same, so that the baker can better grasp the baking time of the food at each position in the oven body, and the baking effect is improved.

[0004] However, the existing furnace body heating gas supply mode is relatively single, mainly relying on the direct pressurized input mode of external airflow for oxygen supply. The temperature of the air extracted from the external environment is relatively low, and when it contacts with a single part of the furnace body, it will cause the temperature of the surface part of the furnace body to decrease, affecting the heating uniformity.

[0005] Therefore, it is necessary to design and reform the furnace body even heating device. UTILITY MODEL CONTENTS

[0006] In order to solve the problems in the above background art, the purpose of the utility model is to provide a furnace body even heating device, which has the advantages of improving the heating uniformity, solving the problem that the existing furnace body heating gas supply mode is relatively single, mainly relying on the direct pressurized input mode of external airflow for oxygen supply, the temperature of the air extracted from the external environment is relatively low, and when it contacts with a single part of the furnace body, it will cause the temperature of the surface part of the furnace body to decrease, affecting the heating uniformity.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a furnace body even heating device, comprising a shell;

[0008] The inside of the shell is fixedly connected with an inner shell, a hollow inner cavity is formed between the inner shell and the shell, both sides of the surface of the inner shell are inlaid with air supply rings, a plurality of through holes are formed in the surface of the air supply ring, the inside of the through hole is in communication with the inside of the inner shell, a fan is arranged on the right side of the shell, the output end of the fan is in communication with the inside of the shell, a transmission structure is arranged between the shell and the inner shell, and the transmission structure can control the rotation of the air supply ring and improve the uniformity of the air injection of the through hole.

[0009] As preferred in the utility model, the transmission structure comprises a gear ring fixedly connected to the inside of the air supply ring, a transmission rod is arranged on the right side of the shell, the left end of the transmission rod penetrates through the shell and extends to the inside of the shell, one end of the transmission rod in the inside of the shell is fixedly connected with a gear, and the gear is located on the inside of the gear ring and is in meshing with the gear ring.

[0010] As preferred in the utility model, the right side of the shell is fixedly connected with a support, a pulley is arranged on the surface of the support and the transmission end of the fan, a belt is sleeved on the surface of the pulley, the pulley and the belt can drive the power of the output shaft of the fan, the back surface of the pulley on the surface of the support and the surface of the transmission rod are fixedly connected with inclined cone wheels, and the inclined cone wheels are in meshing with each other.

[0011] As preferred in the utility model, the surface of the transmission rod is sleeved with an impeller, the impeller is located on one side of the gear, the impeller and the transmission rod are in sliding key connection with each other, the transmission rod can drive the rotation of the impeller, and the impeller can slide and displace on the surface of the transmission rod.

[0012] As preferred in the utility model, the surface of the impeller is movably connected with a limiting plate sleeved on the surface of the transmission rod through a bearing, one side of the limiting plate away from the impeller penetrates through the shell and extends to the outside of the shell, and the shell and the limiting plate are in sliding connection.

[0013] As preferred in the utility model, the surface of the limiting plate is fixedly connected with a sleeve plate located on the outside of the shell, the surface of the support is provided with a rotating wheel fixedly connected with the pulley, the surface of the rotating wheel is fixedly connected with a sliding rod located in the inside of the sleeve plate, and the sliding rod and the sleeve plate are in sliding connection.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] 1、The hollow inner cavity preheats and buffers the cold air, avoids the direct impact of the low-temperature airflow on the surface of the furnace body, reduces the local temperature difference, the rotation design of the air supply ring changes the position of the through hole dynamically, the airflow is uniformly injected into the inner cavity of the furnace body from multiple directions and multiple angles, and the heating uniformity is significantly improved.

[0016] 2、The utility model discloses a stable and reliable transmission through the meshing transmission of gear and gear ring, ensures that the air supply ring rotates at a uniform speed, avoids airflow distribution fluctuation, and the compact layout of gear is directly embedded in the inner side of the air supply ring, reduces the space occupied by transmission components, and is convenient for maintenance.

[0017] 3、The utility model discloses that the efficient transmission of fan power to transmission rod is realized through belt drive, reduces mechanical vibration and noise, the power direction is converted from horizontal to vertical through inclined cone wheel set, optimizes space layout, and is suitable for the narrow space between outer shell and inner shell.

[0018] 4、The utility model discloses that the mixing effect of airflow in hollow cavity is enhanced through centrifugal airflow generated when impeller rotates, further homogenizes airflow temperature, and impeller sliding adjustment airflow disturbance area expands airflow coverage range and avoids local airflow stagnation.

[0019] 5、The utility model discloses that the axial sliding range of impeller is restricted through limiting plate, prevents excessive displacement from leading to mechanical interference or airflow turbulence, sliding connection design guarantees the sealing property of outer shell, avoids gas leakage, and maintains the pressure balance in hollow cavity.

[0020] 6、The utility model discloses that the reciprocating linear motion of limiting plate is converted through runner and slide rod mechanism, realizes the automatic control of impeller axial sliding, and the sliding fit precision of slide rod and sleeve plate is high, ensures that the linear correlation of impeller displacement and fan rotating speed is guaranteed, and the adjustment response speed is improved. DRAWINGS

[0021] Figure 1 It is the structure schematic drawing of the utility model;

[0022] Figure 2 It is the sectional structure schematic drawing of the utility model;

[0023] Figure 3 It is the local structure schematic drawing of the utility model;

[0024] Figure 4 It is the utility model Figure 3 It is the structure schematic drawing of the utility model A place of enlargement.

[0025] In the drawing: 1, outer shell;2, inner shell;3, air supply ring;4, through -hole;5, fan;6, transmission structure;7, gear ring;8, transmission rod;9, gear;10, support;11, pulley;12, belt;13, inclined cone wheel;14, impeller;15, limiting plate;16, sleeve plate;17, runner;18, slide rod. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0027] As shown in Figures 1 to 4 , the present utility model provides a kind of furnace uniform heating device, including shell 1;

[0028] The inside of shell 1 is fixedly connected with inner shell 2, hollow inner cavity is formed between inner shell 2 and shell 1, both sides of the surface of inner shell 2 are embedded with gas supply ring 3, a plurality of through holes 4 are formed in the surface of gas supply ring 3, the inner side of through hole 4 is communicated with the inside of inner shell 2, fan 5 is arranged at the right side of shell 1, the output end of fan 5 is communicated with the inside of shell 1, transmission structure 6 is arranged between shell 1 and inner shell 2, transmission structure 6 can control the rotation of gas supply ring 3 and improve the uniformity of airflow injected into through hole 4.

[0029] Reference Figure 3 , transmission structure 6 includes gear ring 7 fixedly connected to the inner side of gas supply ring 3, transmission rod 8 is arranged at the right side of shell 1, the left end of transmission rod 8 penetrates shell 1 and extends to the inside of shell 1, gear 9 is fixedly connected to the end of transmission rod 8 in the inside of shell 1, gear 9 is located at the inner side of gear ring 7 and is engaged with gear ring 7.

[0030] As a kind of technical optimization scheme of the present utility model, gear 9 and gear ring 7 are engaged transmission stable and reliable, ensure that gas supply ring 3 rotates at uniform speed, avoid airflow distribution fluctuation, gear 9 is compactly arranged, directly embedded in the inner side of gas supply ring 3, reduce the space occupied by transmission component, facilitate maintenance.

[0031] Reference Figure 4 , support 10 is fixedly connected to the right side of shell 1, pulley 11 is mounted on the surface of support 10 and the transmission end of fan 5, pulley 11 is sleeved with belt 12, pulley 11 and belt 12 can drive the power of fan 5 output shaft, inclined cone wheel 13 is fixedly connected to the back of pulley 11 on the surface of support 10 and the surface of transmission rod 8, and inclined cone wheel 13 is engaged with each other.

[0032] As a kind of technical optimization scheme of the present utility model, high-efficiency transmission of the power of fan 5 to transmission rod 8 is realized by belt 12 transmission, mechanical vibration and noise are reduced, the direction of power is changed from horizontal to vertical by inclined cone wheel 13 group, space layout is optimized, and the narrow space between shell 1 and inner shell 2 is adapted.

[0033] Reference Figure 4The surface of the transmission rod 8 is sleeved with an impeller 14, the impeller 14 is located on one side of the gear 9, the impeller 14 and the transmission rod 8 are mutually slidingly connected by a key, the transmission rod 8 can drive the impeller 14 to rotate and the impeller 14 can slide and displace on the surface of the transmission rod 8.

[0034] As a technical optimization scheme of the utility model, the centrifugal airflow is generated when the impeller 14 rotates, the mixing effect of the airflow in the hollow cavity is enhanced, the airflow temperature is further homogenized, the impeller 14 slides to adjust the airflow disturbance area, the airflow coverage range is expanded, and local airflow stagnation is avoided.

[0035] Reference Figure 4 The surface of the impeller 14 is movably connected with a limiting plate 15 sleeved on the surface of the transmission rod 8 through a bearing, one side of the limiting plate 15 away from the impeller 14 penetrates through the shell 1 and extends to the outside of the shell 1, and the shell 1 is slidingly connected with the limiting plate 15.

[0036] As a technical optimization scheme of the utility model, the axial sliding range of the impeller 14 is constrained by the limiting plate 15, mechanical interference or airflow turbulence caused by excessive displacement is prevented, the sliding connection design guarantees the sealing property of the shell 1, gas leakage is avoided, and the pressure balance in the hollow cavity is maintained.

[0037] Reference Figure 4 The surface of the limiting plate 15 is fixedly connected with a sleeve plate 16 located outside the shell 1, the surface of the support 10 is provided with a rotating wheel 17 fixedly connected with the belt wheel 11, the surface of the rotating wheel 17 is fixedly connected with a sliding rod 18 located inside the sleeve plate 16, and the sliding rod 18 is slidingly connected with the sleeve plate 16.

[0038] As a technical optimization scheme of the utility model, the rotating motion of the fan 5 is converted into the reciprocating linear motion of the limiting plate 15 through the rotating wheel 17 and the sliding rod 18 mechanism, the automatic control of the axial sliding of the impeller 14 is realized, the sliding precision of the sliding rod 18 and the sleeve plate 16 is high, the linear correlation between the displacement of the impeller 14 and the rotating speed of the fan 5 is ensured, and the adjustment response speed is improved.

[0039] The working principle and use process of the utility model: after starting the fan 5, the external air is sucked into the hollow inner cavity between the outer shell 1 and the inner shell 2, the airflow output by the fan 5 is transported to the gas supply ring 3 direction through the hollow inner cavity, oxygen is provided for the inside of the furnace body, in the running process of the fan 5, the output shaft of the fan 5 drives the pulley 11 to rotate through the belt 12, the pulley 11 transmits power to the transmission rod 8 through the inclined cone wheel 13 group, the transmission rod 8 drives the gear 9 to rotate, the gear 9 is engaged with the gear ring 7 inside the gas supply ring 3, drives both sides of the gas supply ring 3 to rotate uniformly around the inner shell 2 axis, this rotation makes the position of the through hole 4 on the surface of the gas supply ring 3 dynamically change, avoids the fixed impact of airflow on a certain point of the furnace body, at the same time, the impeller 14 on the transmission rod 8 rotates with it, generates auxiliary airflow disturbance, enhances the mixing effect of the airflow in the hollow cavity, the runner 17 fixed on the pulley 11 rotates synchronously with the fan 5 speed, drives the sliding rod 18 to slide periodically in the cover plate 16, pushes the limiting plate 15 and the impeller 14 to slide axially along the transmission rod 8, the change of the position of the impeller 14 further optimizes the airflow distribution mode, adapts to different working condition requirements, the rotating gas supply ring 3 uniformly injects the airflow into the inner shell 2 through the dynamically changed through hole 4, avoids the concentrated contact of low-temperature air on a certain area of the furnace body, the double action of the rotation and axial sliding of the impeller 14 promotes the dynamic adjustment of the airflow pressure and flow direction in the hollow cavity, ensures that the oxygen or heat medium uniformly penetrates the surface of the furnace body, eliminates local temperature difference.

[0040] In summary: the furnace body uniform heating device, through the hollow inner cavity, preheats and buffers the cold air, avoids the direct impact of low-temperature airflow on the surface of the furnace body, reduces the local temperature difference, the rotating design of the gas supply ring 3 makes the position of the through hole 4 dynamically change, the airflow is uniformly injected into the furnace cavity from multiple directions and multiple angles, significantly improves the heating uniformity.

[0041] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such process, method, article, or equipment.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A furnace uniform heating device, comprising a shell (1); characterized in that The inner side of the through hole (4) is in communication with the inside of the inner shell (2), a fan (5) is arranged on the right side of the shell (1), the output end of the fan (5) is in communication with the inside of the shell (1), a transmission structure (6) is arranged between the shell (1) and the inner shell (2), the transmission structure (6) can control the rotation of the air supply ring (3) and improve the uniformity of the air flow injected into the through hole (4).

2. A device for uniform heating of a furnace body according to claim 1, characterized in that: The transmission structure (6) comprises a gear ring (7) fixedly connected to the inner side of the air supply ring (3), a transmission rod (8) is arranged on the right side of the shell (1), one end of the transmission rod (8) extends into the inside of the shell (1), a gear (9) is fixedly connected to one end of the transmission rod (8) located in the inside of the shell (1), the gear (9) is located on the inner side of the gear ring (7) and is in meshing engagement with the gear ring (7).

3. A device for uniform heating of a furnace body according to claim 2, characterized in that: The right side of the shell (1) is fixedly connected with a support (10), the surface of the support (10) and the transmission end of the fan (5) are both provided with a pulley (11), the surface of the pulley (11) is sleeved with a belt (12), the pulley (11) and the belt (12) can drive the power of the output shaft of the fan (5), the back surface of the pulley (11) on the surface of the support (10) and the surface of the transmission rod (8) are both fixedly connected with an inclined cone wheel (13), the inclined cone wheels (13) are in meshing engagement.

4. A device for uniform heating of a furnace body according to claim 3, characterized in that: The surface of the transmission rod (8) is sleeved with an impeller (14), the impeller (14) is located on one side of the gear (9), the impeller (14) is in sliding key connection with the transmission rod (8), the transmission rod (8) can drive the impeller (14) to rotate and the impeller (14) can slide and displace on the surface of the transmission rod (8).

5. A device for uniform heating of a furnace body according to claim 4, characterized in that: The surface of the impeller (14) is movably connected with a limiting plate (15) sleeved on the surface of the transmission rod (8) through a bearing, one side of the limiting plate (15) away from the impeller (14) penetrates through the shell (1) and extends to the outside of the shell (1), the shell (1) is in sliding connection with the limiting plate (15).

6. A device for uniform heating of a furnace body according to claim 5, characterized in that: The surface of the limiting plate (15) is fixedly connected with a sleeve plate (16) located outside the shell (1), the surface of the support (10) is provided with a rotating wheel (17) fixedly connected with the pulley (11), the surface of the rotating wheel (17) is fixedly connected with a sliding rod (18) located inside the sleeve plate (16), the sliding rod (18) is in sliding connection with the sleeve plate (16).

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