A uniform prechamber

Abstract

The utility model discloses a kind of uniform preheating chambers, including shell and uniform preheating mechanism;Shell: its inside upside and downside are respectively fixedly connected with isolation layer;Uniform preheating mechanism: it includes slewing bearing, isolation plate, heating pipe, heat dissipation fin and fixed circular plate, the slewing bearing is respectively fixedly connected in the middle portion of upside isolation layer and the middle portion of downside isolation layer, the inner ring surface of two slewing bearings is respectively fixedly connected with isolation plate, two isolation plates are fixedly connected with the heating pipe of uniform distribution between, the outer camber surface of ten heating pipes is respectively fixedly connected with the heat dissipation fin of uniform distribution, the upside of ten heating pipes is fixedly connected with a fixed circular plate, the downside of ten heating pipes is also fixedly connected with a fixed circular plate, the outside of shell is equipped with controller, the input end of controller is electrically connected external power supply, this uniform preheating chamber, heat exchange capacity is stronger, and the preheating gas discharged is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of preheating technology, specifically to a uniform preheating chamber. Background Technology

[0002] A preheating chamber is a device used to preheat materials, gases, or workpieces. Its core function is to increase the temperature of the target medium through energy transfer, thereby reducing energy consumption, improving efficiency, or meeting process temperature requirements for subsequent processes. In existing convective heat exchange preheaters, high-temperature flue gas is introduced into the preheating chamber, while cold air to be preheated flows in from the other side. Both flow in the heat exchange channel (heat dissipation occurs on the surface of the heat sink). The cold air absorbs heat from the flue gas and its temperature rises, while the flue gas cools down and is discharged. Heat is transferred through the relative flow of the hot fluid (high-temperature flue gas) and the medium to be preheated (such as cold air), via the collision and mixing of fluid molecules. Existing convection heat exchange preheaters are often fixed. According to the flow channel design, the temperature on the front side of the heat exchanger is often higher than that on the back side. When cold air passes through the front heat exchanger, heat exchange occurs faster, while when it passes through the back heat exchanger, heat exchange occurs slower. When cold air passes through the heat exchangers of different sections, the heat exchange is uneven. Therefore, we propose a uniform preheating chamber. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a uniform preheating chamber with strong heat exchange capacity and more uniform preheated gas discharge, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a uniform preheating chamber, comprising an outer shell and a uniform preheating mechanism; The outer casing has an insulating layer fixedly connected to its upper and lower sides respectively; Uniform preheating mechanism: It includes a slewing bearing, an isolation plate, heating tubes, heat dissipation fins, and a fixed circular plate. The slewing bearing is fixedly connected to the middle of the upper isolation layer and the middle of the lower isolation layer, respectively. Isolation plates are fixedly connected to the inner ring surfaces of the two slewing bearings, and uniformly distributed heating tubes are fixedly connected between the two isolation plates. Uniformly distributed heat dissipation fins are fixedly connected to the outer arc surfaces of the ten heating tubes, and a fixed circular plate is fixedly connected to the upper side of the ten heating tubes and a fixed circular plate is also fixedly connected to the lower side of the ten heating tubes. It has strong heat exchange capacity and the discharged preheated gas is relatively uniform.

[0005] Furthermore, a controller is provided on the outside of the housing, and the input terminal of the controller is electrically connected to an external power source to control the normal operation of the motor.

[0006] Furthermore, the uniform preheating mechanism also includes a centralized smoke outlet and a transmission gear. The centralized smoke outlet is fixedly connected to the upper end of the upper fixed circular plate and the lower end of the lower fixed circular plate, respectively. The middle parts of the two centralized smoke outlets are respectively fixedly connected to the transmission gear to realize the transmission function.

[0007] Furthermore, a preheating chamber is fixedly connected between the two isolation layers. The inner wall of the preheating chamber is made of ceramic fiber board, and a drive installation chamber is opened on the front side wall inside the outer shell to realize the function of heat preservation of the preheating chamber.

[0008] Furthermore, the uniform preheating mechanism also includes a transmission assembly, which includes a mounting frame, a worm gear, a worm, and a drive gear. The mounting frame (481) is fixedly connected to the rear side wall of the drive mounting chamber (10). A transmission shaft is rotatably connected between the upper and lower inner walls of the mounting frame. Drive gears are fixedly connected to the upper and lower ends of the transmission shaft, respectively. A worm gear is fixedly connected to the middle of the transmission shaft. A worm is rotatably connected between the left and right inner walls of the mounting frame. The worm gear meshes with the worm. The upper drive gear meshes with the upper transmission gear, and the lower drive gear meshes with the lower transmission gear, thereby realizing the transmission function.

[0009] Furthermore, the uniform preheating mechanism also includes a motor, which is fixedly connected to the left side of the mounting bracket. The output shaft of the motor is fixedly connected to the left end of the worm gear, and the input end of the motor is electrically connected to the output end of the controller to provide power for the rotating heat sink.

[0010] Furthermore, the upper and lower sides of the outer shell are respectively provided with inlet and outlet preheating channels, and the left and right sides of the outer shell are respectively provided with inlet and outlet preheating channels. The middle parts of the inlet and outlet preheating channels and the preheating channels are respectively fixedly connected with mounting flanges. The left side of the inlet and outlet preheating channel is externally connected to the air inlet of an external combustion furnace, and the right side of the inlet and outlet preheating channel is externally connected to a blower. The lower end of the lower preheating channel is externally connected to the air outlet of an external combustion furnace, and the upper end of the upper preheating channel is externally connected to a residual smoke treatment device, thereby realizing the function of connecting to external equipment.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This uniform preheating chamber has the following advantages: The worm gear transmission structure drives the heat sink that is conducting heat to rotate slowly in real time, so that when the airflow flows through the heat sink, the temperature of the adjacent heat sink surfaces is relatively uniform, the heat exchange capacity is strong, and the discharged preheated gas is relatively uniform. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention in an explosion. Figure 3 This is a partial structural schematic diagram of the uniform preheating mechanism of this utility model; Figure 4 This is a schematic diagram of the installation structure of adjacent heating tubes in this utility model; Figure 5 This is a cross-sectional structural diagram of the outer shell of this utility model.

[0013] In the diagram: 1. Outer shell; 2. Isolation layer; 3. Inlet and outlet preheating channels; 4. Uniform preheating mechanism; 41. Rotary bearing; 42. Isolation plate; 43. Heating tube; 44. Heat dissipation fins; 45. Fixed circular plate; 46. Centralized exhaust hopper; 47. Transmission gear; 48. Transmission assembly; 481. Mounting bracket; 482. Worm gear; 483. Worm; 484. Drive gear; 49. Motor; 5. Mounting flange; 6. Inlet and outlet preheating channels; 7. Controller; 8. Preheating chamber; 9. Ceramic fiberboard; 10. Drive mounting chamber. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This embodiment provides a technical solution: a uniform preheating chamber, including an outer shell 1 and a uniform preheating mechanism 4; Outer shell 1: an isolation layer 2 is fixedly connected to the upper and lower sides of its interior, and a preheating chamber 8 is fixedly connected between the two isolation layers 2. The inner wall of the preheating chamber 8 is made of ceramic fiber board 9, and a drive installation chamber 10 is opened on the front side wall of the interior of the outer shell 1. The upper and lower sides of the outer shell 1 are respectively provided with inlet and outlet preheating channels 6, and the left and right sides of the outer shell 1 are respectively provided with inlet and outlet preheating channels 3. The middle part of the inlet and outlet preheating channels 3 and the preheating channels 6 are respectively fixedly connected with mounting flanges 5. The left side of the inlet and outlet preheating channel 3 is externally connected to the air inlet of the external combustion furnace, and the right side of the inlet and outlet preheating channel 3 is externally connected to the blower. The lower end of the lower preheating channel 6 is externally connected to the air outlet of the external combustion furnace, and the upper end of the upper preheating channel 6 is externally connected to the residual smoke treatment equipment. When the preheating chamber needs to be used, the external blower can be adjusted to introduce the external cold airflow into the interior of the preheating chamber 8 through the lower preheating channel 6, and then the airflow is introduced into the interior of the external combustion furnace along the left inlet and outlet preheating channel 3. A controller 7 is provided on the outside of the housing 1, and the input terminal of the controller 7 is electrically connected to an external power source; Uniform preheating mechanism 4: It includes a slewing bearing 41, an isolation plate 42, heating tubes 43, heat dissipation fins 44, and a fixed circular plate 45. The slewing bearings 41 are fixedly connected to the middle of the upper isolation layer 2 and the middle of the lower isolation layer 2, respectively. The inner ring surfaces of the two slewing bearings 41 are fixedly connected to the isolation plates 42, and uniformly distributed heating tubes 43 are fixedly connected between the two isolation plates 42. The outer arc surfaces of the ten heating tubes 43 are fixedly connected to the uniformly distributed heat dissipation fins 44, and a fixed circular plate 45 is fixedly connected to the upper side of the ten heating tubes 43 and also fixedly connected to the lower side of the ten heating tubes 43. The uniform preheating mechanism 4 also includes a centralized exhaust pipe 46 and a transmission gear 47. The pipes 46 are fixedly connected to the upper end of the upper fixed circular plate 45 and the lower end of the lower fixed circular plate 45, respectively. Transmission gears 47 are fixedly connected to the middle portions of the two centralized exhaust pipes 46 (the surface of the transmission gears 47 is coated with ceramic heat-insulating coating to prevent the transmission components from overheating; when the centralized exhaust pipes 46 heat up, the ceramic heat-insulating coating isolates the heat, preventing heat transfer to the transmission gears 47). At this time, the high-temperature flue gas generated by the external combustion furnace can be introduced into the lower preheating channel 6, and then flows along the heating pipe 43 into the upper preheating channel 6. The remaining flue gas is then treated by the external residual smoke treatment equipment. During the heating process of tube 43, the hot smoke inside the heating tube 43 dissipates heat to the heat dissipation fins 44. At this time, the cold air flowing through the preheating chamber 8 blows over the heat dissipation fins 44, blowing away the surface temperature of the heat dissipation fins 44. Meanwhile, the cold air discharged from the upper preheating channel 6 completes the heating and is discharged into the interior of the external combustion furnace, thereby driving the heat dissipation fins 44 to rotate around the central axis of the preheating channel 6. Moreover, the air inlet direction of each pair of adjacent heating tubes 43 is different. Taking the middle heating tube 43 as an example, the air inlet of the middle heating tube 43 is located on the lower right side, and the air outlet of the middle heating tube 43 is located on the upper left side. The air inlets of the front and rear heating tubes 43 are located on the lower left side, respectively. The air inlets of 43 are located on the upper right side. Therefore, when the high-temperature flue gas passes through the heating pipe 43, the temperature information of the heat dissipation surface of each pair of adjacent heat dissipation fins 44 is different. Taking the heat dissipation fin 44 in the middle as an example, the temperature on the left side is higher than the temperature on the right side because the flue gas flow direction of the heating pipe 43 here is from left to right. The temperature of the heat dissipation fin 44 in the middle of the middle is different between the front and rear sides, with the temperature on the right side being higher than the temperature on the left side because the flue gas flow direction of the heating pipe 43 here is from right to left. The entire heat dissipation fin 44 is in a rotating state in real time. At this time, the cold air passes through the interlayer of the heat dissipation fin 44 and carries away the temperature of the surface of the heat dissipation fin 44, and the heating is relatively uniform. The uniform preheating mechanism 4 also includes a transmission assembly 48, which includes a mounting frame 481, a worm gear 482, a worm 483, and a drive gear 484. The mounting frame 481 is fixedly connected to the rear side wall of the drive mounting chamber 10 (a ceramic heat insulation plate is fixedly connected between the mounting frame 481 and the drive mounting chamber 10 to prevent the temperature of the preheating chamber 8 from being conducted to the mounting frame 481). A transmission shaft is rotatably connected between the upper and lower inner walls of the mounting frame 481 (the surface of the transmission shaft is coated with ceramic heat insulation coating to prevent excessive heat conduction from affecting the transmission components). The upper and lower ends of the transmission shaft are respectively fixedly connected to the drive gear 484 (the surfaces of the worm gear 482, worm 483, and drive gear 484 are all coated with ceramic heat insulation coating to prevent the transmission components from being heated). The worm gear 482 is fixedly connected to the middle of the transmission shaft, and the worm 483 is rotatably connected between the left and right inner walls of the mounting frame 481. 83. The worm gear 482 is meshed with the worm 483. The upper drive gear 484 is meshed with the upper transmission gear 47. The lower drive gear 484 is meshed with the lower transmission gear 47. The uniform preheating mechanism 4 also includes a motor 49. The motor 49 is fixedly connected to the left side of the mounting bracket 481 (the front side of the housing 1 is provided with a heat dissipation port for the motor 49). The output shaft of the motor 49 is fixedly connected to the left end of the worm 483. The input end of the motor 49 is electrically connected to the output end of the controller 7. During this period, the controller 7 can be adjusted to operate the motor 49. The output shaft of the motor 49 rotates, thereby driving the worm 483 to rotate. This, in turn, drives the transmission shaft to rotate through the worm gear 482, thereby driving the two drive gears 484 to rotate. This, in turn, drives the two centralized smoke outlets 46 to rotate synchronously, thereby driving the two isolation plates 42 to rotate.

[0016] The working principle of the uniform preheating chamber provided by this utility model is as follows: When the preheating chamber is needed, the external blower can be adjusted to guide the external cold airflow into the preheating chamber 8 through the lower preheating channel 6. Then, the airflow is introduced into the external combustion furnace through the left-side inlet and outlet preheating channel 3. At this time, the high-temperature flue gas generated by the combustion of the external combustion furnace can be introduced into the lower preheating channel 6, and then flows through the heating pipe 43 into the upper preheating channel 6. The flue gas is then treated by the external residual smoke treatment equipment. During the heating process 43, the hot smoke inside the heating tube 43 dissipates heat to the heat dissipation fins 44. At this time, the cold air flowing through the preheating chamber 8 blows over the heat dissipation fins 44, blowing away the surface temperature of the heat dissipation fins 44. Meanwhile, the cold air discharged from the upper preheating heating channel 6 completes the heating and is discharged into the interior of the external combustion furnace. During this period, the controller 7 can be adjusted to operate the motor 49. The output shaft of the motor 49 rotates, which in turn drives the worm gear 483 to rotate, which in turn drives the transmission shaft to rotate through the worm wheel 482, which in turn drives the two drive gears 484 to rotate, which in turn drives the two centralized... The exhaust pipe 46 rotates synchronously, which in turn drives the two partition plates 42 to rotate, and in turn drives the heat dissipation fins 44 to rotate around the central axis of the preheating channel 6. Furthermore, the air inlet directions of every two adjacent heating pipes 43 are different. Taking the middle heating pipe 43 as an example, the air inlet of the middle heating pipe 43 is located on the lower right, and the air outlet of the middle heating pipe 43 is located on the upper left. Similarly, the air inlets of the front and rear heating pipes 43 are located on the lower left, and the air inlets of the front and rear heating pipes 43 are located on the upper right. Therefore, when high-temperature flue gas passes through the heating pipe 43, the air inlets of every two adjacent heat dissipation fins... The temperature information of the heat dissipation surface of the fin 44 is different. Taking the middle heat dissipation fin 44 as an example, the temperature on the left side is higher than that on the right side because the flue gas flow direction of the heating pipe 43 here is from left to right. The temperature of the middle heat dissipation fin 44 on the front and rear sides is different, with the temperature on the right side being higher than that on the left side because the flue gas flow direction of the heating pipe 43 here is from right to left. The entire heat dissipation fin 44 is in a rotating state in real time. At this time, the cold air passes through the interlayer of the heat dissipation fin 44 and carries away the temperature of the surface of the heat dissipation fin 44, and the heating is relatively uniform.

[0017] It is worth noting that the core chip of the controller 7 disclosed in the above embodiments is a microcontroller, specifically an STM32. The motor 49 can be freely configured according to the actual application scenario. It is recommended that the motor 49 be a 57 series stepper motor. The controller 7 controls the operation of the motor 49 using methods commonly used in the prior art.

[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A uniform pre-chamber, characterized by: It includes an outer shell (1) and a uniform preheating mechanism (4); The outer shell (1): its upper and lower sides are respectively fixedly connected with an isolation layer (2); Uniform preheating mechanism (4): It includes a slewing bearing (41), an isolation plate (42), a heating tube (43), a heat dissipation fin (44), and a fixed circular plate (45). The slewing bearing (41) is fixedly connected to the middle of the upper isolation layer (2) and the middle of the lower isolation layer (2). The inner ring surfaces of the two slewing bearings (41) are fixedly connected to the isolation plates (42). The heating tubes (43) are uniformly distributed between the two isolation plates (42). The outer arc surfaces of the ten heating tubes (43) are fixedly connected to the uniformly distributed heat dissipation fins (44). A fixed circular plate (45) is fixedly connected to the upper side of the ten heating tubes (43) and a fixed circular plate (45) is also fixedly connected to the lower side of the ten heating tubes (43).

2. The uniform preheating chamber according to claim 1, characterized in that: The outer casing (1) is provided with a controller (7), and the input terminal of the controller (7) is electrically connected to an external power source.

3. A uniform prechamber as defined in claim 2, characterized by: The uniform preheating mechanism (4) also includes a centralized smoke outlet (46) and a transmission gear (47). The centralized smoke outlet (46) is fixedly connected to the upper end of the upper fixed circular plate (45) and the lower end of the lower fixed circular plate (45), respectively. The transmission gear (47) is fixedly connected to the middle part of the two centralized smoke outlets (46).

4. A uniform prechamber as defined in claim 3, characterized by: A preheating chamber (8) is fixedly connected between the two isolation layers (2). The inner wall of the preheating chamber (8) is made of ceramic fiber board (9), and a drive installation chamber (10) is opened on the front side wall inside the outer shell (1).

5. A uniform prechamber as defined in claim 4, characterized by: The uniform preheating mechanism (4) further includes a transmission assembly (48), which includes a mounting frame (481), a worm gear (482), a worm (483), and a drive gear (484). The mounting frame (481) is fixedly connected to the rear side wall of the drive mounting chamber (10). A transmission shaft is rotatably connected between the upper and lower inner walls of the mounting frame (481). The upper and lower ends of the transmission shaft are respectively fixedly connected to the drive gear (484). The worm gear (482) is fixedly connected to the middle of the transmission shaft. The worm (483) is rotatably connected between the left and right inner walls of the mounting frame (481). The worm gear (482) and the worm (483) are meshed. The upper drive gear (484) is meshed with the upper transmission gear (47), and the lower drive gear (484) is meshed with the lower transmission gear (47).

6. A uniform prechamber as defined in claim 5, characterized by: The uniform preheating mechanism (4) also includes a motor (49), which is fixedly connected to the left side of the mounting bracket (481). The output shaft of the motor (49) is fixedly connected to the left end of the worm (483), and the input end of the motor (49) is electrically connected to the output end of the controller (7).

7. A uniform prechamber as defined in claim 1, wherein: The upper and lower sides of the outer shell (1) are respectively provided with inlet and outlet preheating channels (6), and the left and right sides of the outer shell (1) are respectively provided with inlet and outlet preheating channels (3). The middle parts of the inlet and outlet preheating channels (3) and the preheating channels (6) are respectively fixedly connected with mounting flanges (5). The left side of the inlet and outlet preheating channel (3) is externally connected to the air inlet of the external combustion furnace, and the right side of the inlet and outlet preheating channel (3) is externally connected to the blower. The lower end of the lower preheating channel (6) is externally connected to the air outlet of the external combustion furnace, and the upper end of the upper preheating channel (6) is externally connected to the residual smoke treatment equipment.

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