Flow guide assembly based on uniform heating of trolley furnace

Abstract

The utility model discloses a flow guide assembly based on uniform heating of a trolley furnace, which relates to the field of trolley furnaces, and is characterized by comprising a plurality of branch pipes arranged in the trolley furnace, air outlet holes are formed in the bottoms of the branch pipes, and valves for controlling the communication degree between every two branch pipes are arranged among the branch pipes. The branch pipes at one end are connected with a trolley furnace air inlet pipeline, the branch pipes at the other end are closed through baffles, the sizes of air outlet holes in the bottoms of the branch pipes are sequentially increased in the direction away from the air inlet pipeline, and the sizes of openings of the valves are also sequentially increased in the direction away from the air inlet pipeline. The device has the effects that through a pressure-aperture and communication size linkage mechanism, when hot air flows through different branch pipes, moderate flow limiting can be realized through a small aperture in a high-pressure area, flow can be supplemented through a large aperture in a low-pressure area, and finally, the hot air discharged from the air outlet holes in the bottoms of the branch pipes enters the trolley furnace at a balanced flow speed and flow.

Description

Technical Field

[0001] This utility model relates to the field of bogie hearth furnaces, and more specifically, it relates to a flow guiding component based on uniform heating of a bogie hearth furnace. Background Technology

[0002] The bogie hearth furnace is a national standard energy-saving periodic operation furnace widely used in industrial production. It adopts an ultra-energy-saving structural design, using composite fibers as insulation material, combined with lightweight, high-strength microsphere vacuum ball energy-saving bricks, effectively reducing heat loss and lowering energy consumption. During production, it uses anti-wire-dropping 20° inclined wire-supporting bricks to ensure stable installation of heating elements and improve safety. The furnace opening is equipped with anti-workpiece impact bricks to prevent workpieces from colliding and damaging the furnace body, extending its service life. The bogie hearth furnace features an automatically sealing bogie and furnace door, effectively preventing heat leakage and the entry of cold air from outside, ensuring stable furnace temperature. Its integrated track design eliminates the need for complex foundation installation; it can be placed directly on a level surface for immediate use, greatly improving the convenience and flexibility of equipment installation.

[0003] However, in actual use, the uniformity of temperature within the existing bogie hearth furnace has always been a key factor affecting the quality of workpiece heat treatment. During heating, the airflow distribution within the existing bogie hearth furnace is uneven (mainly affected by the pressure of the hot air flow; the greater the distance from the hot air inlet, the more significant the drop in hot air pressure, resulting in uneven heat transfer). This leads to significant temperature differences in different areas of the furnace, failing to meet the heat treatment requirements of some workpieces with high heating uniformity requirements, and severely impacting the heat treatment quality and production efficiency.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a flow guiding component based on uniform heating of a bogie furnace. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flow guiding component based on uniform heating of a bogie furnace.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow guiding component based on uniform heating of a bogie furnace, comprising multiple branch pipes with air outlets at the bottom disposed inside the bogie furnace, valves controlling the connection size between two branch pipes installed between the branch pipes, one end of the branch pipe being connected to the bogie furnace air inlet pipe, and the other end of the branch pipe being closed by a baffle, the size of the air outlets at the bottom of the multiple branch pipes increasing sequentially away from the air inlet pipe, and the opening size of the multiple valves also increasing sequentially away from the air inlet pipe.

[0007] Preferably, a mounting plate fixed to the surface of the trolley furnace is fixedly connected to the upper part of the valve surface, the valve adjustment wheel is located above the mounting plate, and a through groove is provided on the trolley furnace for installing the components below the mounting plate inside the trolley furnace.

[0008] Preferably, a frame slot seat is fixedly connected around the perimeter of the through slot on the surface of the bogie furnace, and a frame plate is fixedly connected to the bottom of the mounting plate, the surface of which is covered with a high-temperature resistant sealing rubber layer.

[0009] Preferably, the surface of the valve is further fitted with a locking component to fix the state of the adjusting wheel.

[0010] Preferably, the locking component includes a side plate welded to the surface of the branch pipe, and a screw is threadedly connected to the surface of the side plate, with a rotating plate fixedly connected to the head of the screw.

[0011] Preferably, the head of the screw is rotatably connected to the clamping plate via a bearing, and the top of the side plate is connected to the clamping plate via a telescopic rod.

[0012] Preferably, the clamping plate is divided into a rear plate that is rotatably connected to the screw, and a front plate that contacts the adjusting wheel rod. An elastic pad is installed between the front plate and the rear plate, and the head of the telescopic rod is connected to the back of the rear plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model uses a "pressure-orifice and connection size linkage" mechanism to ensure that when hot air flows through different branch pipes, it can achieve appropriate flow restriction through small orifices in high-pressure areas and supplement flow through large orifices in low-pressure areas. Ultimately, the hot air discharged from the air outlets at the bottom of each branch pipe enters the bogie furnace with a balanced flow rate and flow, effectively improving the problem of uneven airflow distribution in traditional bogie furnaces in the background technology, which leads to uneven heat transfer.

[0015] 2. This utility model can ensure that the valve opening is not affected by external disturbances through the locking component, and maintain the preset flow distribution relationship of the "outlet diameter-valve gradient increase" design;

[0016] 3. This utility model forms a concave-convex sealing structure by combining the frame groove seat, the frame plate and the high-temperature resistant sealing rubber layer. Compared with the traditional single-sided contact, its sealing effect is better and can effectively prevent heat loss from this point.

[0017] 4. When equipment vibration causes minor displacement between components, the elastic pad can absorb these dynamic stresses and maintain a stable locking state, thereby ensuring the precise fixing of the opening size of the cover valve and providing a reliable guarantee for stable airflow control in the furnace. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Another perspective on the specific structure;

[0021] Figure 3 This utility model Figure 1 Another angle of the specific structural diagram;

[0022] Figure 4 This is a schematic diagram of the specific structure of the side part of this utility model;

[0023] Figure 5 This utility model Figure 4 A magnified view of the local structure of A.

[0024] In the diagram: 1. Branch pipe; 2. Air outlet; 3. Valve; 301. Adjusting wheel; 4. Baffle; 5. Locking component; 501. Side plate; 502. Screw; 503. Rotating plate; 504. Pressing plate; 5041. Rear plate; 5042. Front plate; 5043. Elastic pad; 505. Telescopic rod; 6. Mounting plate; 7. Frame groove seat; 8. Frame plate; 9. High-temperature resistant sealing rubber layer. Detailed Implementation

[0025] like Figure 1-5 As shown, this utility model provides a flow guiding component for uniform heating based on a bogie furnace, including multiple branch pipes 1 with air outlets 2 at the bottom, which are set inside the bogie furnace. Valves 3 are installed between the branch pipes 1 to control the size of the connection between two branch pipes 1. One end of the branch pipe 1 is connected to the air inlet pipe of the bogie furnace, and the other end of the branch pipe 1 is closed by a baffle 4. The size of the air outlets 2 at the bottom of the multiple branch pipes 1 increases sequentially away from the air inlet pipe, and the opening size of the multiple valves 3 also increases sequentially away from the air inlet pipe.

[0026] During operation, hot air enters the flow guiding assembly through branch pipe 1, which is connected to the inlet pipe of the bogie furnace. This assembly achieves uniform airflow distribution through a precise design of "gradually increasing outlet diameter 2 - valve 3": the outlet diameter 2 at the bottom of multiple branch pipes 1 and the opening size of the matching valve 3 all increase in a stepwise manner away from the inlet pipe. When the hot air initially flows through the near-end branch pipe 1, due to the higher air pressure at the inlet end, even though the outlet diameter 2 is small, the high pressure characteristics can still ensure that sufficient hot airflow is discharged through the outlet 2, avoiding excessive heat concentration in the near-end area due to excessive air pressure. When the remaining hot air flows through valve 3 to the far-end branch pipe 1, as the air pressure decreases due to the increase in pipe length, the opening of valve 3 and the outlet diameter 2 gradually increase in a gradient manner, compensating for the air pressure drop by increasing the flow area, so that the far-end branch pipe 1 can still maintain a similar hot air flow rate as the near end under lower air pressure. This "pressure-orifice and connection size linkage" mechanism ensures that when hot air flows through different branch pipes 1, it can achieve appropriate flow restriction through small orifices in the high-pressure zone and supplement the flow through large orifices in the low-pressure zone. Ultimately, the hot air discharged from the air outlets 2 at the bottom of each branch pipe 1 enters the bogie furnace with a balanced flow rate and volume. This effectively improves the problem of uneven airflow distribution in traditional bogie furnaces, which leads to uneven heat transfer. It allows heat to be evenly transferred to all areas of the furnace. Furthermore, the connection size between the two branch pipes 1 can be easily adjusted according to the actual extrusion situation through valve 3, making it more controllable.

[0027] The surface of valve 3 is also equipped with a locking component 5 to fix the state of the regulating wheel 301. During the operation of the bogie furnace, factors such as high-temperature airflow impact and equipment vibration can easily cause the regulating wheel 301 to rotate unexpectedly, thereby changing the opening size of valve 3 and disrupting the pre-set airflow distribution scheme. The locking component 5 can ensure that the opening of valve 3 is not affected by external disturbances and maintain the preset flow distribution relationship of "outlet hole 2 diameter - valve 3 gradient increase".

[0028] The following is the specific structure of the locking component 5: The locking component 5 includes a side plate 501 welded to the surface of the branch pipe 1, and a screw 502 is threadedly connected to the surface of the side plate 501. A rotating plate 503 is fixedly connected to the head of the screw 502. The locking component 5 includes a side plate 501 welded to the surface of the branch pipe 1, and a screw 502 is threadedly connected to the surface of the side plate 501. A rotating plate 503 is fixedly connected to the head of the screw 502. The head of the screw 502 is rotatably connected to a pressure plate 504 through a bearing. The top of the side plate 501 is connected to the pressure plate 504 through a telescopic rod 505. The pressure plate 504 is divided into a rear plate 5041 rotatably connected to the screw 502, and a front plate 5042 in contact with the rod body of the adjusting wheel 301. An elastic pad 5043 is installed between the front plate 5042 and the rear plate 5041. The head of the telescopic rod 505 is connected to the back of the rear plate 5041.

[0029] Rotating the rotating plate 503 clockwise causes the screw 502 to rotate clockwise. The screw 502, through the bearing, drives the rear plate 5041 to move forward, which in turn moves the entire pressing plate 504. At this time, the telescopic rod 505 extends to maintain the linear movement of the pressing plate 504 until the front plate 5042 presses the rod part of the adjusting wheel 301 to limit the rotation of the adjusting wheel 301, thereby locking the opening size of the valve 3. At this time, the elastic pad 5043 is also under pressure and in a compressed state. When the equipment vibration causes small displacements between components, the elastic pad 5043 can absorb these dynamic stresses and always maintain a stable locking state, thereby ensuring the precise fixation of the opening size of the cover valve 3 and providing a reliable guarantee for the stable control of the airflow in the furnace.

[0030] Furthermore, a mounting plate 6, fixed to the surface of the bogie furnace, is fixedly connected to the upper part of the valve 3. The adjusting wheel 301 of the valve 3 is located above the mounting plate 6. A through groove is provided on the bogie furnace for installing the components below the mounting plate 6 inside the bogie furnace. The adjusting wheel 301 is exposed on the furnace surface. This allows operators to adjust the opening size of the valve 3 directly from outside the furnace without entering the high-temperature furnace, significantly improving operational safety and convenience. Additionally, the surface of the bogie furnace is fixedly connected to... A frame plate 8 is fixedly connected to the bottom of the frame groove seat 7 and the mounting plate 6. The surface of the frame plate 8 is covered with a high-temperature resistant sealing rubber layer 9. During installation, the frame plate 8 and the high-temperature resistant sealing rubber layer 9 are inserted into the frame groove seat 7 (the high-temperature sealing rubber layer 9 will be squeezed during insertion). Then, the mounting plate 6 is fixed to the bogie furnace with screws. The combination of the frame groove seat 7, the frame plate 8 and the high-temperature resistant sealing rubber layer 9 forms a concave-convex sealing structure. Compared with the traditional single-sided contact, its sealing effect is better and can effectively prevent heat loss from this point.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A flow guiding component based on uniform heating in a bogie hearth furnace, characterized in that: It includes multiple branch pipes (1) with air outlets (2) at the bottom inside the bogie furnace. A valve (3) is installed between the branch pipes (1) to control the size of the connection between the two branch pipes (1). One end of the branch pipe (1) is connected to the air inlet pipe of the bogie furnace, and the other end of the branch pipe (1) is closed by a baffle (4). The size of the air outlets (2) at the bottom of the multiple branch pipes (1) increases sequentially in the direction away from the air inlet pipe. The opening size of the multiple valves (3) also increases sequentially in the direction away from the air inlet pipe.

2. The flow guiding component based on uniform heating of a bogie hearth furnace according to claim 1, characterized in that: The upper part of the surface of the valve (3) is fixedly connected to the mounting plate (6) which is fixed to the surface of the bogie furnace. The adjusting wheel (301) of the valve (3) is located above the mounting plate (6). The bogie furnace has a through groove for installing the components below the mounting plate (6) inside the bogie furnace.

3. The flow guiding component based on uniform heating of a bogie hearth furnace according to claim 2, characterized in that: The trolley furnace surface is fixedly connected to the trough around the perimeter of the through groove with a frame groove seat (7), and the bottom of the mounting plate (6) is fixedly connected to a frame plate (8), the surface of the frame plate (8) is covered with a high temperature resistant sealing rubber layer (9).

4. The flow guiding component based on uniform heating of a bogie hearth furnace according to claim 3, characterized in that: The surface of the valve (3) is also fitted with a locking component (5) to fix the state of the adjusting wheel (301).

5. The flow guiding component based on uniform heating of a bogie hearth furnace according to claim 4, characterized in that: The locking component (5) includes a side plate (501) welded to the surface of the branch pipe (1), and a screw (502) is threadedly connected to the surface of the side plate (501), and a rotating plate (503) is fixedly connected to the head of the screw (502).

6. The flow guiding component based on uniform heating of a bogie hearth furnace according to claim 5, characterized in that: The head of the screw (502) is rotatably connected to the pressure plate (504) via a bearing, and the top of the side plate (501) is connected to the pressure plate (504) via a telescopic rod (505).

7. The flow guiding component based on uniform heating of a bogie hearth furnace according to claim 6, characterized in that: The clamping plate (504) is divided into a rear plate (5041) that is rotatably connected to the screw (502) and a front plate (5042) that is in contact with the rod part of the adjusting wheel (301). An elastic pad (5043) is installed between the front plate (5042) and the rear plate (5041). The head of the telescopic rod (505) is connected to the back of the rear plate (5041).

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