Atmosphere isolation device of industrial furnace

Abstract

The utility model relates to the field of industrial furnaces, and discloses an atmosphere isolation device of an industrial furnace, which comprises two sealing doors, the two sealing doors are respectively and rotatably connected to the front side and the rear side of the outer wall of a furnace body through hinges, an isolation plate is fixed in the furnace body and divides the interior of the furnace body into an isolation chamber and a heating chamber, and the heating chamber is fixed in the isolation chamber. A mounting hole is formed in one side of the partition plate, a heat exchanger is fixed in the mounting hole, a cooling box is fixed to the top face of the furnace body, a water pump is fixed to the top face of the cooling box, a conveying pipe is fixed to the output end of the water pump, and a temperature sensor is fixed to the top face of the furnace body in a communicating mode. According to the utility model, the isolation plate, the heat exchanger, the cooling box, the water pump, the connecting pipe and the conveying pipe are matched for use, so that the whole system can automatically and quickly respond to temperature change, quick cooling is realized, and stable performance and quality of a workpiece in the heat treatment process are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial furnaces, specifically to an atmosphere isolation device for industrial furnaces. Background Technology

[0002] An industrial furnace is a thermal device used in industrial production to heat materials or workpieces using heat generated from fuel combustion or electrical energy conversion. Broadly speaking, a boiler is also a type of industrial furnace, but it is conventionally not included within the scope of industrial furnaces.

[0003] According to Chinese Patent No. CN221505673U, an atmosphere isolation device for an industrial furnace includes a furnace body. An isolation plate is fixed to the inner wall of the furnace body. Two mounting holes are opened on one side of the isolation plate. A heat exchanger is fixed to the inner wall of the mounting holes. An isolation chamber is fixed to the bottom surface of the cavity on the right side of the furnace body. An insulation layer is fixed to the inner wall of the isolation chamber. Several fixing holes are opened on one side of the isolation chamber. A heat-conducting block is fixed to the inner wall of the fixing holes. The heat-conducting block is connected to the heat exchanger. A limiting groove is opened on the top surface of the isolation chamber. An isolation door is snapped into the inner wall of the limiting groove. A sealing gasket is fixed to the outer wall of the isolation door.

[0004] In the above scheme, the internal temperature of the isolation chamber is controlled by the cooperation of the heat exchanger and the insulation layer, which leads to the following disadvantages: the device cannot achieve rapid automatic cooling during use, thereby reducing the quality of the workpiece during the heat treatment process. Utility Model Content

[0005] The purpose of this invention is to provide an atmosphere isolation device for an industrial furnace to solve the problem that the device cannot achieve rapid automatic cooling during use, thereby reducing the quality of the workpiece during the heat treatment process.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: an atmosphere isolation device for an industrial furnace, comprising two sealing doors, the two sealing doors being rotatably connected to the front and rear sides of the outer wall of the furnace body via hinges, an isolation plate being fixed inside the furnace body, a PLC controller being fixed to the right side of the outer wall of the furnace body, the isolation plate dividing the interior of the furnace body into an isolation chamber and a heating chamber, an installation hole being provided on one side of the isolation plate, a heat exchanger being fixed inside the installation hole, the heat exchanger being electrically connected to the PLC controller, a heater being fixed inside the heating chamber, the heater being electrically connected to the PLC controller, connection holes being provided on the left and right sides of the outer wall of the furnace body, a cooling box being fixed to the top surface of the furnace body, a water pump being fixed to the top surface of the cooling box, the water pump being electrically connected to the PLC controller, a connecting pipe being fixedly connected between the water pump and the cooling box, a delivery pipe being fixed to the output end of the water pump, the delivery pipe passing through the two connecting holes and extending into the cooling box, a temperature sensor being fixedly connected to the top surface of the furnace body, the temperature sensor being electrically connected to the PLC controller.

[0007] Preferably, a heat-conducting box is fixed to the outer wall of the conveying pipe, the heat-conducting box is fixedly connected to the outer wall of the furnace body, a heat-conducting sheet is fixed inside the heat-conducting box, and a semiconductor cooling chip is fixed to the right side of the outer wall of the heat-conducting box.

[0008] Preferably, an exhaust pipe is fixedly connected to the top surface of the furnace body, and an exhaust valve is provided on the exhaust pipe. The exhaust valve is electrically connected to the PLC controller.

[0009] Preferably, a pressure sensor is fixedly connected to the top surface of the furnace body, and the pressure sensor is electrically connected to the PLC controller.

[0010] Preferably, the top surface of the furnace body is connected to and fixed with a flue pipe.

[0011] Preferably, a sealing ring is fixed to one side of each of the two sealing doors.

[0012] Compared with existing technologies, the atmosphere isolation device for an industrial furnace that adopts the above-mentioned technical solution has the following beneficial effects:

[0013] I. In operation, the operator first places the workpiece and fuel in the isolation chamber and heating chamber respectively, then closes the two sealed doors to ensure the furnace's internal airtightness. The heater then starts, burning the fuel to generate heat. Simultaneously, the heat exchanger, under the control of the PLC controller, meticulously controls the atmosphere composition and temperature in the isolation chamber, ensuring the workpiece is in an ideal heat treatment environment. Temperature sensors monitor temperature fluctuations in the isolation chamber in real time. If the temperature exceeds the preset safety range, it feeds this information back to the PLC controller. Upon receiving the signal, the PLC controller immediately starts the water pump, delivering coolant from the cooling tank to the delivery pipe through the connecting pipe. This coolant circulates inside the furnace, effectively removing excess heat generated in the heating chamber and further cooling it through the cooling tank, forming a circulating water cooling system. The PLC controller not only controls the start and stop of the water pump but also dynamically adjusts the operating status of the heat exchanger and heater. The coordinated use of the isolation plate, heat exchanger, cooling tank, water pump, connecting pipe, and delivery pipe ensures that the entire system can automatically and quickly respond to temperature changes, achieving rapid cooling and ensuring the workpiece maintains stable performance and quality during heat treatment.

[0014] Second, during use, the combined use of heat-conducting plates and semiconductor cooling plates helps to maintain a lower temperature of the coolant inside the delivery pipe, thereby more effectively removing heat from the furnace body and improving cooling efficiency. The combined use of exhaust pipes and exhaust valves helps to release air pressure within the isolation chamber, preventing excessively high or low pressure from affecting the furnace process.

[0015] Thirdly, during operation, the pressure sensor facilitates real-time monitoring of air pressure changes inside the isolation chamber. If the air pressure exceeds the preset safety range, the information is immediately fed back to the PLC controller, which then reacts by automatically adjusting the exhaust valve to balance the air pressure inside the isolation chamber. The exhaust pipe facilitates the discharge of flue gas generated during fuel combustion in the heating chamber, reducing pollution and corrosion of the furnace body. The sealing ring prevents gas leakage and the intrusion of external impurities, ensuring the overall sealing of the furnace body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is an exploded diagram of an embodiment.

[0018] Figure 3 This is an exploded view of the cooling box and heat conduction box in the embodiment.

[0019] Figure 4 Examples Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Sealed door; 2. Furnace body; 3. Isolation plate; 4. Isolation chamber; 5. Heating chamber; 6. Mounting hole; 7. Heat exchanger; 8. Heater; 9. Connection hole; 10. Cooling box; 11. Water pump; 12. Connecting pipe; 13. Delivery pipe; 14. Temperature sensor; 15. Heat-conducting box; 16. Heat-conducting sheet; 17. Semiconductor refrigeration chip; 18. Exhaust pipe; 19. Exhaust valve; 20. Pressure sensor; 21. Smoke exhaust pipe; 22. Sealing ring. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, an atmosphere isolation device for an industrial furnace includes two sealing doors 1, which are rotatably connected to the front and rear sides of the outer wall of the furnace body 2 via hinges. An isolation plate 3 is fixed inside the furnace body 2, and a PLC controller is fixed to the right side of the outer wall of the furnace body 2. The isolation plate 3 divides the interior of the furnace body 2 into an isolation chamber 4 and a heating chamber 5. A mounting hole 6 is provided on one side of the isolation plate 3, and a heat exchanger 7 is fixed inside the mounting hole 6. The heat exchanger 7 is electrically connected to the PLC controller. A heater 8 is fixed inside the heating chamber 5, and the heater 8 is connected to the PLC controller. The LC controller is electrically connected. Connection holes 9 are opened on the left and right sides of the outer wall of the furnace body 2. A cooling box 10 is fixed on the top surface of the furnace body 2. A water pump 11 is fixed on the top surface of the cooling box 10. The water pump 11 is electrically connected to the PLC controller. A connecting pipe 12 is fixed between the water pump 11 and the cooling box 10. A delivery pipe 13 is fixed at the output end of the water pump 11. The delivery pipe 13 passes through the two connection holes 9 and extends into the cooling box 10. A temperature sensor 14 is fixed on the top surface of the furnace body 2. The temperature sensor 14 is electrically connected to the PLC controller.

[0023] In operation, the operator first places the workpiece and fuel into the isolation chamber 4 and heating chamber 5 respectively. Then, the two sealing doors 1 are closed to ensure the airtightness of the furnace body 2. The heater 8 is then activated to burn the fuel and generate heat. Simultaneously, the heat exchanger 7, under the control of the PLC controller, precisely controls the atmosphere composition and temperature within the isolation chamber 4 to ensure the workpiece is in an ideal heat treatment environment. At this time, the temperature sensor 14 monitors the temperature fluctuations within the isolation chamber 4 in real time. If the temperature exceeds the preset safety range, it sends this information to the PLC controller. Upon receiving the signal, the PLC controller immediately starts the water pump 11, which transports the coolant from the cooling tank 10 to the delivery pipe 13 through the connecting pipe 12. This coolant circulates within the furnace body 2, effectively removing excess heat generated in the heating chamber 5 and further cooling it through the cooling tank 10, forming a circulating water cooling system. Furthermore, the PLC controller not only controls the start and stop of the water pump 11 but also dynamically adjusts the operating status of the heat exchanger 7 and the heater 8.

[0024] The combined use of the isolation plate 3, heat exchanger 7, cooling box 10, water pump 11, connecting pipe 12 and conveying pipe 13 helps ensure that the entire system can automatically and quickly respond to temperature changes, achieve rapid cooling, and ensure that the workpiece maintains stable performance and quality during heat treatment.

[0025] like Figures 1-4 As shown, a heat-conducting box 15 is fixed to the outer wall of the conveying pipe 13. The heat-conducting box 15 is fixedly connected to the outer wall of the furnace body 2. A heat-conducting plate 16 is fixed inside the heat-conducting box 15. A semiconductor cooling plate 17 is fixed to the right side of the outer wall of the heat-conducting box 15.

[0026] In use, the combined use of the heat-conducting plate 16 and the semiconductor cooling plate 17 helps to keep the coolant inside the delivery pipe 13 at a lower temperature, thereby more effectively removing heat from the furnace body 2 and improving cooling efficiency.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, an exhaust pipe 18 is fixedly connected to the top surface of the furnace body 2, and an exhaust valve 19 is provided on the exhaust pipe 18. The exhaust valve 19 is electrically connected to the PLC controller. A pressure sensor 20 is fixedly connected to the top surface of the furnace body 2, and the pressure sensor 20 is electrically connected to the PLC controller.

[0028] During use, the combined use of exhaust pipe 18 and exhaust valve 19 facilitates the release of air pressure within the isolation chamber 4, preventing excessively high or low pressure from affecting the furnace process. Pressure sensor 20 allows for real-time monitoring of air pressure changes within the isolation chamber 4. If the air pressure exceeds the preset safety range, the information is immediately fed back to the PLC controller, which then automatically adjusts the exhaust valve 19 to balance the air pressure within the isolation chamber 4.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, the top surface of the furnace body 2 is connected to and fixed with a flue pipe 21, and a sealing ring 22 is fixed on one side of each of the two sealing doors 1.

[0030] During use, the exhaust pipe 21 facilitates the discharge of flue gas generated during fuel combustion in the heating chamber 5, reducing pollution and corrosion of the furnace body 2 by the flue gas. The sealing ring 22 helps prevent gas leakage inside the furnace body 2 and the intrusion of external impurities, ensuring the overall sealing of the furnace body 2.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An atmosphere isolation device for an industrial furnace, comprising two sealing doors (1), the two sealing doors (1) being rotatably connected to the front and rear sides of the outer wall of the furnace body (2) respectively via hinges, characterized in that, An isolation plate (3) is fixed inside the furnace body (2). A PLC controller is fixed on the right side of the outer wall of the furnace body (2). The isolation plate (3) divides the interior of the furnace body (2) into an isolation chamber (4) and a heating chamber (5). An installation hole (6) is provided on one side of the isolation plate (3). A heat exchanger (7) is fixed inside the installation hole (6). The heat exchanger (7) is electrically connected to the PLC controller. A heater (8) is fixed inside the heating chamber (5). The heater (8) is electrically connected to the PLC controller. Connections are provided on the left and right sides of the outer wall of the furnace body (2). The furnace body (2) has a connection hole (9), a cooling box (10) is fixed on the top surface of the furnace body (2), a water pump (11) is fixed on the top surface of the cooling box (10), the water pump (11) is electrically connected to the PLC controller, a connecting pipe (12) is fixed between the water pump (11) and the cooling box (10), a delivery pipe (13) is fixed at the output end of the water pump (11), the delivery pipe (13) passes through the two connection holes (9) and extends into the cooling box (10), a temperature sensor (14) is fixed on the top surface of the furnace body (2), and the temperature sensor (14) is electrically connected to the PLC controller.

2. The atmosphere isolation device for an industrial furnace according to claim 1, characterized in that: A heat-conducting box (15) is fixed to the outer wall of the conveying pipe (13). The heat-conducting box (15) is fixedly connected to the outer wall of the furnace body (2). A heat-conducting sheet (16) is fixed inside the heat-conducting box (15). A semiconductor cooling chip (17) is fixed to the right side of the outer wall of the heat-conducting box (15).

3. The atmosphere isolation device for an industrial furnace according to claim 2, characterized in that: The top surface of the furnace body (2) is connected to and fixed with an exhaust pipe (18), and an exhaust valve (19) is provided on the exhaust pipe (18). The exhaust valve (19) is electrically connected to the PLC controller.

4. The atmosphere isolation device for an industrial furnace according to claim 3, characterized in that: A pressure sensor (20) is fixedly connected to the top surface of the furnace body (2), and the pressure sensor (20) is electrically connected to the PLC controller.

5. The atmosphere isolation device for an industrial furnace according to claim 1, characterized in that: The top surface of the furnace body (2) is connected to and fixed with a flue pipe (21).

6. The atmosphere isolation device for an industrial furnace according to claim 5, characterized in that: A sealing ring (22) is fixed to one side of each of the two sealing doors (1).

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