Gas rapid cooling device for vacuum furnace

Abstract

The utility model discloses a kind of gas rapid cooling device of vacuum furnace, it is related to vacuum furnace technical field, specifically a kind of gas rapid cooling device of vacuum furnace, including vacuum furnace, still including gas conveying component, filter component, cooling component, the filter component includes filter box, filter plate, the filter plate is detachably installed in filter box;By the filter component design of uniqueness, the quick replacement of filter plate is realized.When filter plate needs to be replaced, just slide cover plate, it can drive sliding plate to move, make bolt from filter plate disengagement, while second spring pushes plate and pushes filter plate out of filter box, without manual disassembly, avoid the scald caused by high temperature, improve the security and convenience of operation.In addition, filter plate uses detachable installation mode, it is convenient to replace and clean according to actual demand, ensure the stability of filtering effect, solve the problem that existing cooling device filter plate replacement is complicated and there is security risk.

Description

Technical Field

[0001] This utility model relates to the field of vacuum furnace technology, specifically to a rapid gas cooling device for a vacuum furnace. Background Technology

[0002] In modern industrial production, vacuum furnaces are widely used as important heat treatment equipment in processes such as heating, quenching, and annealing of metal materials. Rapid cooling of the workpiece is a crucial step in the use of a vacuum furnace. For example, patent number 202122345333.6 discloses a rapid gas cooling device for a vacuum furnace. This device forms a closed airflow loop through components such as a gas outlet pipe, a metal bellows, a high-temperature resistant valve, a vacuum heat exchanger, and a vacuum fan, enabling rapid cooling of high-temperature gas. The cooling rate of the workpiece is controlled by adjusting the speed of the vacuum fan. However, existing cooling devices still have some problems in practical use.

[0003] First, replacing the filter plates in existing cooling devices when filtering impurities from high-temperature gases is cumbersome, requiring manual disassembly. This is not only inconvenient but also poses a safety hazard due to the high temperature, increasing the risk of burns. Second, the cooling efficiency of existing devices needs improvement, especially when processing large volumes of high-temperature gases, where the slow cooling rate impacts production efficiency. Therefore, designing a rapid cooling device for vacuum furnace gases that can more efficiently cool high-temperature gases and facilitate filter plate replacement is a key technical problem that needs to be solved. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a rapid gas cooling device for a vacuum furnace, solving the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a rapid gas cooling device for a vacuum furnace, comprising a vacuum furnace, a gas conveying component, a filtering component, and a cooling component. The filtering component includes a filter box and a filter plate, the filter plate being detachably installed inside the filter box. The cooling component includes a cooling box and a heat exchange tube, the heat exchange tube being fixedly installed inside the cooling box. The gas conveying component includes a blower and an inlet pipe. The gas inlet end of the inlet pipe is fixedly installed and connected to the gas outlet end of the vacuum furnace. The gas outlet end of the inlet pipe is fixedly installed and connected to the inlet end of the blower. The gas outlet end of the blower is fixedly installed and connected to the filter box. The gas outlet end of the filter box is fixedly installed and connected to the gas inlet end of the heat exchange tube. An outlet pipe is fixedly installed and connected to the gas outlet end of the heat exchange tube. The gas outlet end of the outlet pipe is fixedly installed and connected to the inlet end of the vacuum furnace.

[0006] Optionally, a cover plate is slidably installed on one side wall of the filter box; the filter component also includes a fixed frame, a sliding plate, and a second spring. The fixed frame is fixedly installed inside the filter box, the filter plate is slidably installed on the fixed frame, and the sliding plate is slidably installed inside the filter box. The cover plate is connected to the sliding plate in a transmission manner, and the sliding plate is driven to slide when the cover plate slides. A pin is fixedly connected to the sliding plate, and the pin passes through the fixed frame and the filter plate respectively, and the pin limits and fixes the filter plate in the fixed frame.

[0007] Optionally, a push plate is slidably mounted on one side of the fixed frame, one end of the second spring is fixedly connected to the push plate, and the other end of the second spring is fixedly connected to the inner wall of the filter box; the side wall of the push plate away from the second spring abuts against the filter plate; the sliding plate abuts against the push plate after sliding displacement.

[0008] Optionally, a first guide rod is fixedly connected to the filter box. The first guide rod passes through the sliding plate and the two are slidably connected. A first spring is sleeved on the outer wall of the first guide rod. One end of the first spring is fixedly connected to the sliding plate, and the other end of the first spring abuts against the fixed frame.

[0009] Optionally, a cold medium inflow pipe is fixedly installed on one side wall of the cooling box and the two are connected, and a cold medium outflow pipe is fixedly installed on the other side wall of the cooling box and the two are connected.

[0010] Optionally, solenoid valves are installed on both the air inlet pipe and the air outlet pipe.

[0011] (III) Beneficial Effects This invention provides a rapid gas cooling device for a vacuum furnace, which has the following advantages: 1. This rapid gas cooling device for a vacuum furnace achieves quick filter plate replacement through a unique filter component design. When filter plate replacement is needed, simply slide the cover plate to move the sliding plate, disengaging the pin from the filter plate. Simultaneously, a second spring pushes a push plate to eject the filter plate out of the filter box. This eliminates the need for manual disassembly, preventing burns from high temperatures and improving operational safety and convenience. Furthermore, the filter plate is detachable, facilitating replacement and cleaning according to actual needs, ensuring stable filtration performance, and solving the problems of cumbersome and safety hazards associated with filter plate replacement in existing cooling devices.

[0012] 2. This rapid gas cooling device for a vacuum furnace improves cooling efficiency through optimized cooling component design. The cooling chamber is equipped with heat exchange tubes that are in full contact with the cold medium within the chamber, enabling rapid transfer of heat from the high-temperature gas to the cold medium, thus achieving rapid cooling of the high-temperature gas. Simultaneously, solenoid valves are installed on both the inlet and outlet pipes, allowing for precise control of gas flow rate and velocity, further enhancing the cooling effect and solving the problem of low cooling efficiency in existing cooling devices. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of a rapid gas cooling device for a vacuum furnace according to the present invention; Figure 2 This is a three-dimensional structural diagram of the exhaust fan in a rapid gas cooling device for a vacuum furnace according to the present invention. Figure 3 This is a cross-sectional view of the filter box in a rapid gas cooling device for a vacuum furnace according to the present invention. Figure 4 This is a three-dimensional structural diagram of the fixing frame in a rapid gas cooling device for a vacuum furnace according to the present invention. Figure 5 This is a cross-sectional view of the cooling box in a rapid gas cooling device for a vacuum furnace according to this utility model.

[0015] In the diagram: 1. Filter box; 2. Cooling box; 3. Inlet pipe; 4. Outlet pipe; 5. Exhaust fan; 6. Cover plate; 7. Fixing frame; 8. Filter plate; 9. Sliding plate; 10. First guide rod; 11. First spring; 12. Pin; 13. Push plate; 14. Second guide rod; 15. Second spring; 16. Heat exchange tube; 17. Solenoid valve. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. 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. They 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 anything.

[0017] 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. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0018] Please see Figures 1 to 5 The present invention provides a technical solution: a rapid gas cooling device for a vacuum furnace, comprising a vacuum furnace, a gas conveying component, a filtering component, and a cooling component.

[0019] The filtration components include a filter box 1 and a filter plate 8, with the filter plate 8 being detachably installed inside the filter box 1. The cooling components include a cooling box 2 and a heat exchange tube 16, with the heat exchange tube 16 being fixedly installed inside the cooling box 2.

[0020] The gas delivery components include an exhaust fan 5 and an inlet pipe 3. The gas inlet end of the inlet pipe 3 is fixedly installed and connected to the gas outlet end of the vacuum furnace. The gas outlet end of the inlet pipe 3 is fixedly installed and connected to the inlet end of the exhaust fan 5. The gas outlet end of the exhaust fan 5 is fixedly installed and connected to the filter box 1. The gas outlet end of the filter box 1 is fixedly installed and connected to the gas inlet end of the heat exchange tube 16. An outlet pipe 4 is fixedly installed and connected to the gas outlet end of the heat exchange tube 16. The gas outlet end of the outlet pipe 4 is fixedly installed and connected to the inlet end of the vacuum furnace.

[0021] The exhaust fan 5, serving as the power source for gas transport, extracts the high-temperature gas from the vacuum furnace and sends it through the inlet pipe 3 into the filter box 1 for filtration. The filtered gas then enters the heat exchange tube 16 for cooling and finally flows back into the vacuum furnace through the outlet pipe 4, forming a closed airflow circulation system. The filter plate 8 is used to filter the gas produced by the vacuum furnace. The cooling box 2 and the heat exchange tube 16 are used to exchange heat and cool the gas produced by the vacuum furnace before it flows back into the vacuum furnace through the outlet pipe 4.

[0022] Specifically, a cover plate 6 is slidably installed on one side wall of the filter box 1. The filter components also include a fixed frame 7, a sliding plate 9, and a second spring 15. The fixed frame 7 is fixedly installed inside the filter box 1, the filter plate 8 is slidably installed on the fixed frame 7, and the sliding plate 9 is slidably installed inside the filter box 1. The cover plate 6 is connected to the sliding plate 9 in a transmission manner, and the sliding plate 9 is moved when the cover plate 6 slides. A pin 12 is fixedly connected to the sliding plate 9, and the pin 12 passes through the fixed frame 7 and the filter plate 8 respectively, limiting and fixing the filter plate 8 inside the fixed frame 7. A push plate 13 is slidably installed on one side edge of the fixed frame 7. One end of the second spring 15 is fixedly connected to the push plate 13, and the other end of the second spring 15 is fixedly connected to the inner side wall of the filter box 1. The side wall of the push plate 13 away from the second spring 15 abuts against the filter plate 8. The sliding plate 9 abuts against the push plate 13 after sliding displacement. A second guide rod 14 is fixedly connected to the fixed frame 7. The second guide rod 14 passes through the push plate 13 and the two are slidably connected. A second spring 15 is sleeved on the outer wall of the second guide rod 14. One end of the second spring 15 abuts against the push plate 13, and the other end of the second spring 15 abuts against the inner wall of the filter box 1. The second guide rod 14 guides the push plate 13.

[0023] When the sliding plate 9 moves, the pin 12 disengages from the filter plate 8, and the second spring 15 pushes the push plate 13 to push the filter plate 8 out of the filter box 1, thereby realizing the quick replacement of the filter plate 8 and avoiding the inconvenience and safety hazards caused by manual disassembly.

[0024] More specifically, a first guide rod 10 is fixedly connected to the filter box 1. The first guide rod 10 passes through the sliding plate 9 and the two are slidably connected. A first spring 11 is sleeved on the outer side wall of the first guide rod 10. One end of the first spring 11 is fixedly connected to the sliding plate 9, and the other end of the first spring 11 abuts against the fixed frame 7.

[0025] The design of the first guide rod 10 and the first spring 11 ensures the stability and reliability of the sliding plate 9 during movement. The sliding plate 9 can slide along the length of the first guide rod 10, making the replacement of the filter plate 8 smoother.

[0026] Specifically, a cold medium inflow pipe is fixedly installed on one side wall of the cooling box 2 and the two are connected, while a cold medium outflow pipe is fixedly installed on the other side wall of the cooling box 2 and the two are connected. The heat exchange tube 16 is spiral in shape, and multiple fins are welded to the outer side wall of the heat exchange tube 16.

[0027] The cold medium inlet pipe and cold medium outlet pipe are used for inputting or outputting the cold medium into the cooling tank 2. The cold medium exchanges heat with the high-temperature gas through the heat exchange tube 16, achieving rapid cooling of the high-temperature gas. The design of the heat exchange tube 16 increases the contact area between the gas and the cold medium, improving heat exchange efficiency and thus accelerating the cooling rate. The fins on the outer wall of the heat exchange tube 16 are used to further enhance the heat exchange effect.

[0028] Specifically, solenoid valves 17 are installed on both the air inlet pipe 3 and the air outlet pipe 4.

[0029] Among them, the solenoid valve 17 is used to control the opening and closing of the internal flow channels of the air inlet pipe 3 and the air outlet pipe 4. The solenoid valve 17 can precisely control the flow rate and velocity of the gas, and adjust it according to different cooling requirements, thereby further improving the controllability and stability of the cooling effect.

[0030] In operation, the inlet pipe 3 and outlet pipe 4 are connected to the vacuum furnace. The cooling chamber 2 maintains the flow of the cold medium through the inlet and outlet pipes. When cooling of the gas in the vacuum furnace is required, the solenoid valves 17 on the inlet pipe 3 and outlet pipe 4 are opened, and the exhaust fan 5 is started. The exhaust fan 5 extracts the high-temperature gas from the vacuum furnace through the inlet pipe 3, and the high-temperature gas enters the filter chamber 1 through the inlet pipe 3. The filter plate 8 in the filter chamber 1 filters out impurities from the high-temperature gas, and the filtered high-temperature gas enters the heat exchange tube 16. The heat exchange tube 16 exchanges heat with the high-temperature gas through the cold medium in the cooling chamber 2, rapidly cooling the high-temperature gas. The cooled gas flows back into the vacuum furnace through the outlet pipe 4, completing one cooling cycle.

[0031] As usage time increases, the number of impurities on filter plate 8 increases, causing it to become clogged and requiring replacement. At this point, the sliding cover 6 moves, causing the sliding plate 9 to move as well. The sliding plate 9 slides on the first guide rod 10, moving away from the fixed frame 7 and stretching the first spring 11. The sliding plate 9 then moves the pin 12, disengaging it from the filter plate 8. Because the second spring 15 is compressed, as the sliding plate 9 moves, it disengages from the push plate 13. The second spring 15 then pushes the push plate 13, which pushes the filter plate 8 out of the filter box 1. This eliminates the need to reach into the filter box 1 to remove the filter plate 8, preventing burns.

[0032] The filter plate 8 is then removed and replaced. After placing the new filter plate 8 into the fixing frame 7, the filter plate 8 is pushed to compress the second spring 15 by the push plate 13. Then the cover plate 6 is slid back to its original position, at which point the first spring 11 pulls the sliding plate 9 back to its original position. When the sliding plate 9 contacts the push plate 13, the hand can be removed from the filter plate 8. During the resetting process, the sliding plate 9 drives the pin 12 to insert into the filter plate 8 and fix the filter plate 8 in place.

[0033] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] 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. A rapid gas cooling device for a vacuum furnace, comprising a vacuum furnace, characterized in that: It also includes gas delivery components, filtration components, and cooling components. The filter component includes a filter box (1) and a filter plate (8), wherein the filter plate (8) is detachably installed inside the filter box (1); The cooling components include a cooling box (2) and a heat exchange tube (16), wherein the heat exchange tube (16) is fixedly installed inside the cooling box (2); The gas delivery components include a blower (5) and an inlet pipe (3). The gas inlet end of the inlet pipe (3) is fixedly installed and connected to the gas outlet end of the vacuum furnace. The gas outlet end of the inlet pipe (3) is fixedly installed and connected to the inlet end of the blower (5). The gas outlet end of the blower (5) is fixedly installed and connected to the filter box (1). The gas outlet end of the filter box (1) is fixedly installed and connected to the gas inlet end of the heat exchange tube (16). The gas outlet end of the heat exchange tube (16) is fixedly installed with an outlet pipe (4) and connected to the gas outlet end. The gas outlet end of the outlet pipe (4) is fixedly installed and connected to the inlet end of the vacuum furnace.

2. The rapid gas cooling device for a vacuum furnace according to claim 1, characterized in that: A cover plate (6) is slidably installed on one side wall of the filter box (1); the filter component also includes a fixed frame (7), a sliding plate (9), and a second spring (15). The fixed frame (7) is fixedly installed inside the filter box (1), the filter plate (8) is slidably installed on the fixed frame (7), the sliding plate (9) is slidably installed inside the filter box (1), the cover plate (6) is connected to the sliding plate (9) in a transmission manner, and the sliding plate (9) is driven to slide when the cover plate (6) slides; a pin (12) is fixedly connected to the sliding plate (9), and the pin (12) passes through the fixed frame (7) and the filter plate (8) respectively, and the pin (12) limits and fixes the filter plate (8) inside the fixed frame (7).

3. The rapid gas cooling device for a vacuum furnace according to claim 2, characterized in that: A push plate (13) is slidably installed on one side of the fixed frame (7). One end of the second spring (15) is fixedly connected to the push plate (13), and the other end of the second spring (15) is fixedly connected to the inner wall of the filter box (1). The side wall of the push plate (13) away from the second spring (15) abuts against the filter plate (8). The sliding plate (9) abuts against the push plate (13) after sliding displacement.

4. The rapid gas cooling device for a vacuum furnace according to claim 3, characterized in that: A first guide rod (10) is fixedly connected to the filter box (1). The first guide rod (10) passes through the sliding plate (9) and the two are slidably connected. A first spring (11) is sleeved on the outer wall of the first guide rod (10). One end of the first spring (11) is fixedly connected to the sliding plate (9), and the other end of the first spring (11) abuts against the fixed frame (7).

5. The rapid gas cooling device for a vacuum furnace according to claim 1, characterized in that: A cold flow medium inlet pipe is fixedly installed on one side wall of the cooling box (2) and the two are connected. A cold flow medium outlet pipe is fixedly installed on the other side wall of the cooling box (2) and the two are connected.

6. The rapid gas cooling device for a vacuum furnace according to claim 1, characterized in that: Solenoid valves (17) are installed on both the air inlet pipe (3) and the air outlet pipe (4).

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