Uniform heating device of curing oven

Abstract

The utility model relates to a uniform heating device of a curing oven. The fan is arranged in the fan chamber in the main body and is used for extracting gas; the heater is arranged in the heating cavity and used for heating gas, and the heating cavity communicates with the fan chamber; an air inlet plate and an air outlet plate which are oppositely arranged are arranged on the side face of the containing cavity, the air inlet plate is provided with a plurality of air inlet holes, the diameters of the air inlet holes are increased from top to bottom, the air outlet plate is provided with air outlet holes, and the diameters of the air outlet holes are increased from top to bottom; the air inlet holes and the air outlet holes with the same diameter are oppositely arranged; the air guide channels are arranged between the containing cavity and the heating cavity and used for guiding airflow, and the multiple air guide channels are arranged at intervals. According to the uniform heating device of the curing oven, through gas flow optimization, uniform heating of a machined part is achieved, the product quality and the production efficiency are improved, meanwhile, the uniform heating device has the advantages of being efficient and flexible to adjust, and is suitable for different machining scenes.

Description

Technical Field

[0001] This utility model relates to the field of heating device technology, and in particular to a uniform heating device for a curing oven. Background Technology

[0002] Currently, curing ovens are widely used in material processing to heat-treat workpieces, achieving processes such as curing, drying, or heat treatment. However, traditional curing ovens often suffer from uneven heating, leading to unstable quality of the processed parts. For example, patent CN222378802U discloses a high-efficiency circulating heating device for a curing oven. This device uses a blowing assembly to direct hot air from a hot air blower into the oven to heat the objects inside. The blowing pipes and holes are located at the bottom of the oven, allowing the hot air to spread upwards. However, this requires multiple air ducts at different locations to control airflow distribution, and the upward flow of hot air results in higher temperatures at the bottom, causing some areas to be excessively hot or cold, thus affecting the temperature uniformity of the processing area. Utility Model Content

[0003] In order to solve the problems of the prior art, this utility model provides a curing oven uniform heating device that can make the airflow distribution in the heating area more uniform, effectively recover energy, and improve energy utilization efficiency.

[0004] The specific technical solution is as follows: A uniform heating device for a curing oven, comprising:

[0005] main body;

[0006] A blower, located in the blower chamber within the main structure, is used to extract gas;

[0007] A heater, located in the heating chamber, is used to heat the gas; the heating chamber is connected to the fan chamber.

[0008] A receiving cavity is located below and connected to the heating cavity for receiving the workpiece. The side of the receiving cavity has an air inlet plate and an air outlet plate arranged opposite to each other. The air inlet plate has a number of air inlet holes with the diameter of the air inlet holes increasing from top to bottom. The air outlet plate has air outlet holes with the diameter of the air outlet holes increasing from top to bottom. Air inlet holes and air outlet holes of the same diameter are arranged opposite to each other.

[0009] An air guide channel is set between the receiving cavity and the heating cavity to guide airflow; several air guide channels are set at intervals.

[0010] In some embodiments, the receiving cavity has a plurality of outlets arranged from top to bottom, the outlets being connected to the air guide channels, the air outlets of the plurality of air guide channels being arranged from top to bottom, and the air outlets being correspondingly arranged to the air inlet holes of the air inlet plate.

[0011] In some embodiments, the system further includes an exhaust chamber with an outlet. A baffle is provided in the exhaust chamber, the baffle is parallel to the air outlet and located between the outlet and the air outlet. A guide cavity is formed between the baffle and the side wall of the main body. The baffle is provided with ventilation holes, the diameter of which increases from top to bottom.

[0012] In some embodiments, the air outlet plate is provided with a baffle, which extends from one end of the air outlet plate toward the exhaust chamber. The baffle is located below the partition plate and guides the airflow below to the guide chamber.

[0013] In some embodiments, the baffle is arranged perpendicularly to the air outlet plate and faces the opening of the air guide cavity.

[0014] In some embodiments, the air inlet plate and the air outlet plate are provided with an adjustment plate, which is slidably arranged. The adjustment plate is provided with an adjustment hole, which is corresponding to the air inlet hole and the air outlet hole. The adjustment hole slides to change the flow area of ​​the air inlet hole and the air outlet hole.

[0015] In some embodiments, the main body has an inlet and an outlet. The outlet is connected to the guide cavity and is disposed opposite to the opening. The outlet and the inlet are connected through a pipe assembly. A heat exchanger is provided in the pipe assembly. The discharged fluid is discharged after passing through the heat exchanger.

[0016] In some embodiments, the piping assembly includes an exhaust pipe, a conduit, and an inlet pipe. The exhaust pipe is connected to an outlet and the conduit, respectively. The heat exchanger is disposed between the conduit and the inlet pipe. The airflow from the exhaust pipe is discharged through the conduit, and the inlet pipe is connected to an inlet.

[0017] In some embodiments, the exhaust pipe is connected to the middle of the duct, a control valve is provided at the connection position, a heat exchanger is provided at the connection position of several intake pipes to the duct, and the two ends of the duct are outlet ends.

[0018] In some embodiments, the outlet end is provided with a valve, which controls the outlet end to open or close.

[0019] The technical effects of this utility model are as follows: The uniform heating device of the curing oven of this utility model achieves uniform heating of the processed parts through gas flow optimization, which improves product quality and production efficiency. At the same time, it has the advantages of high efficiency and flexible adjustment, and is suitable for different processing scenarios. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the uniform heating device for the curing oven according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the air inlet plate according to an embodiment of the present utility model.

[0023] Figure 3 This is a schematic diagram of the adjustment plate according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of a pipe assembly according to an embodiment of the present invention.

[0025] Figure 5 This is another schematic diagram of the pipe assembly according to an embodiment of the present utility model.

[0026] in:

[0027] 1. Main body; 12. Fan chamber; 13. Heating chamber; 14. Fan; 15. Heater; 16. Receiving cavity; 17. Air inlet plate; 18. Air outlet plate; 171. Air inlet hole; 181. Air outlet hole; 11. Air guide channel; 131. Outlet section; 111. Air outlet; 19. Exhaust chamber; 191. Exhaust outlet; 2. Partition plate; 3. Flow guide chamber; 21. Ventilation hole; 4. Baffle plate; 5. Adjusting plate; 51. Adjusting hole; 10. Inlet; 61. Heat exchanger; 62. Exhaust pipe; 63. Pipe; 64. Air inlet pipe; 65. Control valve; 66. Outlet end; 67. Valve. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0032] like Figures 1 to 5As shown, the curing oven uniform heating device of this utility model embodiment includes a main body 1, which serves as the support structure for the entire device. It adopts a box-type structure and has multiple functional areas inside. The main body 1 contains a fan chamber 12 and a heating chamber 13. A fan 14 is disposed in the fan chamber 12 and is used to draw gas and drive the airflow to circulate within the device. A heater 15 is disposed in the heating chamber 13 and is used to heat the gas; in this embodiment, an electric heater is used. The heating chamber 13 communicates with the fan chamber 12, allowing gas to be transported to the heating chamber 13 for heating. A receiving cavity 16 is disposed below and communicates with the heating chamber 13, and is used to receive the processed parts. The receiving cavity 16 has an air inlet plate 17 and an air outlet plate 18 disposed opposite to each other on its side. The air inlet plate 17 is provided with a plurality of air inlet holes 171, the diameter of which increases from top to bottom. The air outlet plate 18 is provided with air outlet holes 181, the diameter of which also increases from top to bottom. Air inlet holes 171 and air outlet holes 181 of the same diameter are arranged opposite each other to achieve uniform gas distribution and flow. Specifically, in this embodiment, the air inlet plate 17 and the air outlet plate 18 are the same plate body, and the plate body is provided with through holes 81 for air intake or exhaust. The diameter of the through holes 81 is gradient from top to bottom, with the through holes closer to the heating chamber 13 having a smaller diameter and the through holes farther away from the heating chamber having a larger diameter. This application has three types of through holes, namely through holes 81a, 81b and 81c, with the diameter increasing sequentially. Because the through-hole 81a is closer to the heating chamber, a large amount of hot air from the heating chamber enters the receiving chamber through the through-hole 81a. Reducing the diameter of the through-hole 81a can reduce the airflow entering the upper part of the receiving chamber, while strengthening the lower airflow, thus changing the gradient distribution of airflow in the receiving chamber from strong at the top and weak at the bottom to uniform coverage. The air guide channel 11 is set between the receiving chamber 16 and the heating chamber 13 for airflow guidance. Without the air guide channel 11, the airflow from the heating chamber to the area below the air inlet plate 17 flows slowly. Several air guide channels 11 are spaced apart to ensure that the gas can enter the receiving chamber 16 evenly. The number of air guide channels 11 can be set according to the size of the air inlet plate and the number of through-holes. Specifically, the heating chamber 13 has several outlets 131 arranged from top to bottom, which are connected to the air guide channels 11. The air outlets 111 of the several air guide channels 11 are arranged from top to bottom, and the air outlets 111 are corresponding to the air inlet holes 171 of the air inlet plate 17 to achieve orderly gas flow. With the above technical solution, the airflow is heated and then output through the heating chamber 13. It enters the receiving chamber 16 through the air inlet 171 at different heights through the air guide channel 11, and then is output through the air outlet 181. This makes the airflow in the receiving chamber 16 more evenly distributed from top to bottom, and the airflow output in the receiving chamber is stable.

[0033] Furthermore, the main body 1 is provided with an exhaust chamber 19, which has an outlet 191 for discharging airflow. A baffle 2 is provided in the exhaust chamber 19, parallel to the air outlet plate 18 and located between the outlet 191 and the air outlet plate 18. A guide cavity 3 is formed between the baffle 2 and the side wall of the main body 1. The baffle 2 has ventilation holes 21, the diameter of which increases from top to bottom to optimize gas flow during exhaust. Through the above technical solution, the airflow output from the receiving cavity 16 can be prevented from being disturbed within the exhaust chamber 19, thus avoiding impact on the stability of airflow. The air outlet plate 18 is provided with a baffle 4, extending from one end of the air outlet plate 18 towards the exhaust chamber 19, located below the baffle 2. The baffle 2 can block the upward movement of the lower airflow, guiding it to the guide cavity 3 and improving the uniformity of gas flow. Specifically, the baffle 4 is perpendicular to the air outlet plate 18 and faces the opening 31 of the guide cavity 3.

[0034] Furthermore, as an improvement, the air inlet plate 17 and the air outlet plate 18 are provided with adjusting plates 5. The adjusting plates 5 are slidably disposed on the surfaces of the air inlet plate 17 and the air outlet plate 18. The adjusting plates 5 have adjusting holes 51 that match the air inlet / outlet holes. In this embodiment, three adjusting plates 5 are provided. By horizontally sliding the adjusting plates, the actual flow area of ​​the air inlet holes can be dynamically adjusted (for example, the flow rate is maximum when perfectly aligned, and halved when misaligned by 50%). By sliding the adjusting holes 51, the flow area of ​​the air inlet holes 171 and the air outlet holes 181 can be changed, thereby achieving precise control of the gas flow rate. Specifically, the air inlet plate 17 and the air outlet plate 18 can be provided with the same through holes. By adjusting the overlapping area of ​​the adjusting holes 51 and the through holes, i.e., the flow area, by the three adjusting plates 5 respectively, the area of ​​the air inlet holes can be changed from top to bottom.

[0035] Furthermore, the main body 1 is provided with an inlet 10 and an outlet 191. The outlet 191 is connected to the guide cavity 3 and is positioned opposite to the opening 31, allowing the airflow in the guide cavity 3 to be directly discharged. The inlet 10 is used to input airflow, and the outlet 191 is used to discharge airflow. In some cases, the inlet 10 and the outlet 191 are connected, allowing the airflow in the main body 1 to circulate continuously, reducing heating energy consumption. However, if impurities are generated in the curing oven, the airflow cannot be circulated, affecting the processing quality, and the airflow needs to be discharged and clean airflow introduced. In this embodiment, in order to recover the heat energy of the discharged airflow and reduce energy consumption, the outlet 191 and the inlet 10 are connected through a pipe assembly. A heat exchanger 61 is provided in the pipe assembly. The discharged fluid is discharged after passing through the heat exchanger 61. The heat exchanger is used to absorb the heat in the discharged airflow, realizing energy recovery and recycling. Specifically, the piping assembly includes an exhaust pipe 62, a conduit 63, and an inlet pipe 64. The exhaust pipe 62 is connected to both an outlet 191 and a conduit 63. The airflow discharged from the outlet 191 enters the exhaust pipe 62. A heat exchanger 61 is disposed between the conduit 63 and the inlet pipe 64. The airflow from the exhaust pipe 62 passes through the heat exchanger 61 and is then discharged through the conduit 63. The inlet pipe 64 is connected to the inlet 10. Clean airflow enters through the inlet pipe 64, absorbs heat through the heat exchanger 61, and then enters the main body 1 through the inlet 10. The exhaust pipe 62 is connected to the conduit 63 at the middle, and a control valve 65 is provided at the connection point to control the airflow direction. Heat exchangers 61 are installed at the connection points of several inlet pipes 64 with the conduit 63. The two ends of the conduit 63 are outlet ends 66, each equipped with a valve 67. The valve 67 controls the opening or closing of the outlet end 66, achieving precise control of gas flow. When the valve 67 is open, the airflow can be discharged through both ends of the conduit 63. The control valve 65 can be an existing control valve such as a three-way valve. When the conduit 63 is connected to multiple inlet pipes 64, the flow direction of the discharged airflow can be controlled by the control valve 65. For example, the airflow can be directed to the right, to the left, or both. Multiple inlet pipes 64 can be applied to multiple main bodies, or each main body can have multiple inlets 10 corresponding to multiple inlet pipes 64, which can be adjusted according to specific processing requirements.

[0036] In practical applications, after the fan 14 starts, it draws gas from the fan chamber 12. The gas enters the heating chamber 13 and is heated by the heater 15. The heated gas then enters the receiving chamber 16 evenly through the air guide channel 11 to heat the workpiece. Because the diameters of the air inlet 171 and the air outlet 181 increase from top to bottom, the gas can be evenly distributed within the receiving chamber 16, avoiding localized overheating or insufficient temperature. The airflow within the receiving chamber 16 enters the exhaust chamber 19 through the air outlet 181 of the air outlet plate 18. In the exhaust chamber 19, the gas is further guided by the baffle 2 and the ventilation holes 21, resulting in a more uniform flow, and finally discharged through the outlet 191. The discharged gas passes through the heat exchanger 61 in the pipe assembly, exchanging heat with the incoming cold air to achieve energy recovery and improve energy efficiency. Furthermore, by adjusting the position of the regulating plate 5, the flow area of ​​the air inlet 171 and the air outlet 181 can be precisely controlled, thereby adjusting the gas flow rate and velocity to meet the needs of different processing techniques. The design of control valves 65 and 67 allows operators to flexibly control the gas flow path and flow rate, further optimizing the heating process.

[0037] The uniform heating device for curing ovens of this invention achieves uniform heating of processed parts through gas flow optimization, thereby improving product quality and production efficiency. It also has the advantages of high efficiency and flexible adjustment, making it suitable for different processing scenarios.

[0038] The curing oven uniform heating device of this utility model has been described above according to embodiments. However, this utility model is not limited to the specific embodiments described above. Various modifications or alterations can be made without departing from the scope of the claims. This utility model includes various modifications and alterations within the scope of the claims.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A curing oven uniform heating device characterized by, include: main body; A blower, located in the blower chamber within the main structure, is used to extract gas; A heater, located in the heating chamber, is used to heat the gas; the heating chamber is connected to the fan chamber. A receiving cavity is located below and connected to the heating cavity for receiving the workpiece. The side of the receiving cavity has an air inlet plate and an air outlet plate arranged opposite to each other. The air inlet plate has a number of air inlet holes with the diameter of the air inlet holes increasing from top to bottom. The air outlet plate has air outlet holes with the diameter of the air outlet holes increasing from top to bottom. Air inlet holes and air outlet holes of the same diameter are arranged opposite to each other. An air guide channel is set between the receiving cavity and the heating cavity to guide airflow; several air guide channels are set at intervals.

2. The curing oven uniform heating apparatus of claim 1, wherein, The accommodating cavity has several outlets arranged from top to bottom, which are connected to the air guide channels. The air outlets of the several air guide channels are arranged from top to bottom, and the air outlets are correspondingly set with the air inlet holes of the air inlet plate.

3. The curing oven uniform heating apparatus of claim 2, wherein, It also includes an exhaust chamber with an outlet. A baffle is provided in the exhaust chamber, which is parallel to the air outlet and located between the outlet and the air outlet. A flow guide cavity is formed between the baffle and the side wall of the main body. The baffle is provided with ventilation holes, and the diameter of the ventilation holes increases from top to bottom.

4. The curing oven uniform heating apparatus of claim 3, wherein, The air outlet plate is equipped with a baffle, which extends from one end of the air outlet plate toward the exhaust chamber. The baffle is located below the partition and guides the airflow below to the guide chamber.

5. The curing oven uniform heating apparatus of claim 4, wherein, The baffle is perpendicular to the air outlet plate and faces the opening of the air guide cavity.

6. The curing oven uniform heating apparatus of claim 5, wherein, The air inlet plate and air outlet plate are equipped with adjustment plates, which are slidably arranged. The adjustment plates are equipped with adjustment holes, which are corresponding to the air inlet and air outlet. The adjustment holes can be slidably adjusted to change the flow area of ​​the air inlet and air outlet.

7. The curing oven uniform heating apparatus of claim 6, wherein, The main body is provided with an inlet and an outlet. The outlet is connected to the guide cavity and is positioned opposite to the opening. The outlet and the inlet are connected through a pipe assembly. A heat exchanger is provided in the pipe assembly. The discharged fluid is discharged after passing through the heat exchanger.

8. The curing oven uniform heating apparatus of claim 7, wherein, The piping assembly includes an exhaust pipe, a conduit, and an inlet pipe. The exhaust pipe is connected to both the outlet and the conduit. The heat exchanger is located between the conduit and the inlet pipe. The airflow from the exhaust pipe is discharged through the conduit, and the inlet pipe is connected to the inlet.

9. The uniform heating device for the curing oven according to claim 8, characterized in that, The exhaust pipe is connected to the middle of the duct, and a control valve is provided at the connection position. Several air inlet pipes are respectively provided with heat exchangers at the connection positions with the duct, and the two ends of the duct are the outlet ends.

10. The curing oven uniform heating device according to claim 9, characterized in that, The outlet end is equipped with a valve, which controls whether the outlet end is opened or closed.

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