Energy-saving vacuum furnace device with rapid temperature rising

Abstract

The utility model belongs to vacuum furnace technical field especially relates to fast heating energy -conserving type vacuum furnace device, include: base, the base top fixed installation has vacuum furnace, the vacuum furnace inner chamber bottom fixed mounting has support frame, the support frame top fixedly connected with heat -preserving layer, install heating assembly in heat -preserving layer, the air -in and -out component is set up in vacuum furnace one side, the air -in and -out component is used for the vacuumization of heat -preserving layer inner chamber, improved the vacuum furnace heating efficiency, and still can cool down in heat -preserving layer. Through the integrated structure design of base, vacuum furnace, heat -preserving layer and heating assembly, collocation special air -in and -out component and drive mechanism, in the air -in and -out component can fastly draw apart heat -preserving layer inner chamber air, reduce heat conduction loss, significantly improve heating efficiency, and drive mechanism can provide negative pressure and airflow for air -in and -out component simultaneously, need not additional configuration multiple drive motor, greatly reduce energy consumption, and have the function of heating and cooling.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum furnace technology, and in particular relates to a rapid heating and energy-saving vacuum furnace device. Background Technology

[0002] Currently, vacuum furnaces are widely used in metal heat treatment, material sintering and other fields as key equipment for high-precision processing in industrial production. Their core requirements are focused on heating efficiency, energy consumption control and functional integration.

[0003] Among them, the existing equipment has an unreasonable drive system design. The vacuum negative pressure supply and cooling airflow delivery usually rely on two independent drive motors, which not only increases the size of the equipment, manufacturing cost and maintenance difficulty, but also causes a lot of waste of electricity and high energy consumption.

[0004] There is an urgent need for improvement, so we propose a rapid heating energy-saving vacuum furnace device. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a rapid heating and energy-saving vacuum furnace device, which significantly reduces energy consumption.

[0006] In view of this, the present invention provides a rapid heating energy-saving vacuum furnace device, comprising:

[0007] A base, on the top of which a vacuum furnace is fixedly installed, a support frame is fixedly installed at the bottom of the inner cavity of the vacuum furnace, an insulation layer is fixedly connected to the top of the support frame, and a heating component is installed inside the insulation layer;

[0008] An air inlet / outlet assembly is provided on one side of the vacuum furnace. The air inlet / outlet assembly is used to evacuate the inner cavity of the insulation layer, which improves the heating efficiency of the vacuum furnace and can also cool the inside of the insulation layer.

[0009] A bracket is fixedly installed on one side of the top of the base, and a drive mechanism is installed on the bracket. The drive mechanism is used to deliver negative pressure and airflow to the air inlet and outlet components, thus saving the use of a motor.

[0010] Furthermore, the heating assembly includes several heating rings disposed on the inner wall of the insulation layer, and the heating rings are all fixedly installed on the inner wall of the insulation layer by bolts.

[0011] Furthermore, the vacuum furnace port is hinged to have a furnace cover installed, and a docking frame is fixedly installed in the middle of the inner wall of the furnace cover, which is connected to the insulation layer port.

[0012] Furthermore, a bracket is fixedly installed at the bottom of the insulation layer, and the bracket is used to place the processed parts.

[0013] Furthermore, the air inlet and outlet assembly includes two negative pressure pipes that penetrate the vacuum furnace and the insulation layer on the same side. The negative pressure ports of the negative pressure pipes are distributed in the inner cavity of the insulation layer. The vacuum furnace has two air inlet pipes that penetrate it. The air outlets of the air inlet pipes are distributed between the inner cavity of the vacuum furnace and the outer side of the insulation layer. The insulation layer has several connecting pipes that penetrate it. The two ends of the connecting pipes are respectively connected to the inner cavity of the vacuum furnace and the inner cavity of the insulation layer. An exhaust pipe is connected and installed in the middle of the tail end of the vacuum furnace, and the other end of the exhaust pipe is vertically upward.

[0014] Furthermore, the drive mechanism includes a sealing cylinder fixedly installed on one side of the bracket, a sealing plug movably installed inside the sealing cylinder, a squeezing rod fixedly installed on one side of the sealing plug, a drive arm rotatably installed on the other end of the squeezing rod, the other end of the drive arm rotatably connected to the outer wall of the drive disc, and the other ends of the negative pressure pipe and the air inlet pipe are both connected to the sealing cylinder, with the corresponding two negative pressure pipes and air inlet pipes distributed on the same side of the sealing cylinder.

[0015] Furthermore, a motor is fixedly installed on one side of the top of the base, the motor drive output end is connected to the transmission shaft, and the other end of the transmission shaft is fixedly connected to the center of the drive disk.

[0016] Furthermore, inlet and outlet pipes are connected to both sides of the sealing cylinder, and electric valves are installed on the inlet and outlet pipes, negative pressure pipe, air inlet pipe, connecting pipe and exhaust pipe.

[0017] The beneficial effects of this utility model are:

[0018] Through the integrated structural design of the base, vacuum furnace, insulation layer and heating components, and with the special air inlet and outlet components and drive mechanism, the air inlet and outlet components can quickly extract the air from the inner cavity of the insulation layer, reduce heat conduction loss and significantly improve heating efficiency; and the drive mechanism can simultaneously provide negative pressure and airflow to the air inlet and outlet components, eliminating the need for multiple additional drive motors, greatly reducing energy consumption, and also having both heating and cooling functions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the rapid heating energy-saving vacuum furnace device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the vacuum furnace of the rapid heating and energy-saving vacuum furnace device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the vacuum furnace vacuum airflow of the rapid heating energy-saving vacuum furnace device proposed in this utility model;

[0022] Figure 4This is a schematic diagram of the vacuum furnace heat dissipation airflow of the rapid heating energy-saving vacuum furnace device proposed in this utility model;

[0023] The markings in the diagram are as follows:

[0024] 1. Base; 11. Vacuum furnace; 12. Support frame; 13. Insulation layer; 14. Furnace cover; 15. Heating ring; 16. Bracket; 2. Negative pressure pipe; 21. Inlet pipe; 22. Connecting pipe; 23. Exhaust pipe; 24. Electric valve; 3. Bracket; 31. Sealing cylinder; 32. Sealing plug; 33. Extrusion rod; 34. Drive arm; 35. Drive disc; 36. Motor; 37. Inlet and outlet pipes. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0029] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0030] Reference Figures 1 to 4 A rapid heating energy-saving vacuum furnace device includes:

[0031] A base 1 is provided, a vacuum furnace 11 is fixedly installed on the top of the base 1, a support frame 12 is fixedly installed at the bottom of the inner cavity of the vacuum furnace 11, an insulation layer 13 is fixedly connected to the top of the support frame 12, and a heating component is installed inside the insulation layer 13.

[0032] The air inlet and outlet assembly is located on one side of the vacuum furnace 11. The air inlet and outlet assembly is used to evacuate the inner cavity of the insulation layer 13, which improves the heating efficiency of the vacuum furnace 11 and can also cool the inside of the insulation layer 13.

[0033] A bracket 3 is fixedly installed on one side of the top of the base 1. A drive mechanism is installed on the bracket 3. The drive mechanism is used to deliver negative pressure and airflow to the inlet and outlet air components.

[0034] When the equipment is in operation, after the device is started, the drive mechanism first provides power to the inlet and outlet air components, which quickly extract the air from the inner cavity of the insulation layer 13 to create a vacuum environment with low thermal conductivity loss. Then the heating components start to generate heat, and the vacuum environment reduces heat convection and conduction losses, achieving rapid heating. When cooling is required, the drive mechanism switches the output mode to provide airflow power to the inlet and outlet air components and introduces a cooling medium into the vacuum furnace 11, completing the function switching between heating and cooling without the need for additional drive equipment.

[0035] It should be noted that the heating ring is made of a conductive material that is resistant to vacuum and high temperature and has low volatility. It can be made of iron-chromium-aluminum alloy and can withstand temperatures of not less than 800℃, making it suitable for high-temperature heating scenarios without oxidation in vacuum furnaces.

[0036] In the example of this application, the heating assembly includes a plurality of heating rings 15 disposed on the inner wall of the insulation layer 13. The heating rings 15 are all fixedly installed on the inner wall of the insulation layer 13 by bolts, and the heating rings 15 are connected to an external power supply by wires.

[0037] As a preferred example of this utility model, the heating ring 15 is fixed to the inner wall of the insulation layer 13 by bolts, forming a distributed heating layout. After power is applied, the heating ring 15 generates heat through resistance heating. The distributed design allows heat to diffuse from multiple points on the inner wall of the insulation layer 13, quickly forming a uniform temperature field and avoiding localized high or low temperature areas. The bolt connection method does not affect heat conduction, and the heating ring 15 can be quickly inspected or replaced by removing the bolts, ensuring the continuous and stable operation of the heating component.

[0038] In the example of this application, a furnace cover 14 is mounted on the port of the vacuum furnace 11 via a hinge. A docking frame is fixedly installed in the middle of the inner wall of the furnace cover 14, and the docking frame is connected to the port of the insulation layer 13.

[0039] As a preferred example of this utility model, the furnace cover 14 is connected to the port of the vacuum furnace 11 via a hinge. The operator can easily open or close the furnace cover 14 by flipping the hinge. When closed, the mating frame on the inner wall of the furnace cover 14 fits precisely with the port of the insulation layer 13 to form a sealed structure, reducing the leakage of heat radiation from the insulation layer 13 to the outside, while blocking outside air and impurities from entering the inner cavity of the insulation layer 13, thus maintaining the stability of the vacuum environment and the cleanliness of the processing environment.

[0040] In the example of this application, a bracket 16 is fixedly installed at the bottom of the insulation layer 13, and the bracket 16 is used to place the processed parts.

[0041] As a preferred example of this utility model, the workpiece is placed on the bracket 16 at the bottom of the insulation layer 13. The bracket 16 maintains a reasonable distance between the workpiece and the inner wall of the insulation layer 13 and the heating components through the support structure. During heating, heat can flow freely around the workpiece, avoiding heat accumulation or obstruction at the contact points. During the heating and cooling process, the bracket 16 limits and fixes the workpiece to prevent it from shifting due to thermal expansion and contraction or airflow impact, thus ensuring processing accuracy.

[0042] In the example of this application, the air inlet and outlet assembly includes two negative pressure pipes 2 that penetrate through the vacuum furnace 11 and the insulation layer 13 on the same side. The negative pressure ports of the negative pressure pipes 2 are distributed in the inner cavity of the insulation layer 13. The vacuum furnace 11 is provided with two air inlet pipes 21. The air outlets of the air inlet pipes 21 are distributed between the inner cavity of the vacuum furnace 11 and the outer side of the insulation layer 13. The insulation layer 13 is provided with several connecting pipes 22. The two ends of the connecting pipes 22 are respectively connected to the inner cavity of the vacuum furnace 11 and the inner cavity of the insulation layer 13. An exhaust pipe 23 is connected and installed in the middle of the tail end of the vacuum furnace 11. The other end of the exhaust pipe 23 is vertically upward.

[0043] As a preferred example of this utility model, during vacuuming, the negative pressure pipe 2 is directly connected to the inner cavity of the insulation layer 13 to accurately extract internal air and improve vacuum acquisition efficiency; during cooling, the air inlet pipe 21 delivers cooling gas between the inner cavity of the vacuum furnace 11 and the outer side of the insulation layer 13, and the cooling gas quickly penetrates into the interior of the insulation layer 13 through the connecting pipe 22, wrapping the workpiece to achieve all-round cooling; the exhaust gas generated by heating or the gas after cooling is quickly discharged through the vertically upward exhaust pipe 23, using gravity and air pressure difference to accelerate the discharge, avoiding pipe cross-interference and ensuring smooth gas circulation.

[0044] It should be noted that when negative pressure needs to be supplied to the insulation layer 13, the drive disc 35 will drive the drive arm 34 and the extrusion rod 33 to move back and forth, causing the sealing plug 32 to move like a piston in the sealing cylinder 31. When the piston moves downward, the valves of the top negative pressure pipe 2 and the bottom inlet / outlet pipe 37 are opened. Conversely, when the piston moves upward, the valves of the bottom negative pressure pipe 2 and the top inlet / outlet pipe 37 are opened, continuously supplying negative pressure to the insulation layer 13. When it is necessary to cool the workpiece in the vacuum furnace 11, when the piston moves downward, the valves of the bottom air inlet pipe 21 and the top inlet / outlet pipe 37 are opened. Conversely, when the piston moves upward, the valves of the top air inlet pipe 21 and the bottom inlet / outlet pipe 37 are opened, allowing the compressed gas to be delivered into the vacuum furnace 11. With the help of several connecting pipes 22 that are installed through the insulation layer 13, the gas will be introduced into the interior of the insulation layer 13 along the connecting pipes 22 and finally discharged from the exhaust pipe 23, so that the external gas and the inner cavity of the vacuum furnace 11 circulate and cool the workpiece.

[0045] In the example of this application, the drive mechanism includes a sealing cylinder 31 fixedly installed on one side of the bracket 3, a sealing plug 32 movably installed inside the sealing cylinder 31, a squeezing rod 33 fixedly installed on one side of the sealing plug 32, a drive arm 34 rotatably installed on the other end of the squeezing rod 33, and the other end of the drive arm 34 rotatably connected to the outer wall of the drive disc 35. The other ends of the negative pressure pipe 2 and the air inlet pipe 21 are both connected to the sealing cylinder 31, and the two corresponding negative pressure pipes 2 and air inlet pipes 21 are distributed on the same side of the sealing cylinder 31.

[0046] As a preferred example of this utility model, when the drive disc 35 rotates, it drives the drive arm 34 to reciprocate. The drive arm 34 pulls the extrusion rod 33 to push the sealing plug 32 to make piston movement inside the sealing cylinder 31. The reciprocating movement of the sealing plug 32 causes periodic pressure changes inside the sealing cylinder 31. When the pressure decreases, a negative pressure is generated and transported to the insulation layer 13 through the negative pressure pipe 2. When the pressure increases, airflow is pushed and transported to the vacuum furnace 11 through the air inlet pipe 21.

[0047] In the example of this application, a motor 36 is fixedly installed on one side of the top of the base 1. The drive output end of the motor 36 is connected to the drive shaft, and the other end of the drive shaft is fixedly connected to the center of the drive disk 35.

[0048] As a preferred example of this utility model, after the motor 36 starts, its drive output end is directly connected to the central shaft of the drive disk 35 through the transmission shaft, adopting a direct drive method without intermediate transmission links, so as to efficiently transmit the rotational power of the motor 36 to the drive disk 35.

[0049] In the example of this application, both sides of the sealing cylinder 31 are connected to the inlet and outlet pipes 37, and electric valves 24 are installed on the inlet and outlet pipes 37, the negative pressure pipe 2, the air inlet pipe 21, the connecting pipe 22 and the exhaust pipe 23.

[0050] As a preferred example of this utility model, during vacuuming, when the sealing plug 32 moves downward, the control system opens the electric valve 24 of the top negative pressure pipe 2 and the bottom inlet / outlet pipe 37; when it moves upward, it switches to open the electric valve 24 of the bottom negative pressure pipe 2 and the top inlet / outlet pipe 37, continuously extracting air from the insulation layer 13. During cooling, when the sealing plug 32 moves downward, it opens the electric valve 24 of the bottom air inlet pipe 21 and the top inlet / outlet pipe 37; when it moves upward, it switches to open the electric valve 24 of the top air inlet pipe 21 and the bottom inlet / outlet pipe 37, pushing cooling gas into the vacuum furnace 11. The cooling gas is evenly distributed inside the insulation layer 13 through the connecting pipe 22, and after fully exchanging heat with the workpiece, it is discharged from the exhaust pipe 23, forming a circulating cooling channel.

[0051] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A rapid heating energy-saving vacuum furnace device, characterized in that... ,include: A base (1) is fixedly installed on the top of the base (1), a vacuum furnace (11) is fixedly installed on the bottom of the inner cavity of the vacuum furnace (11), a support frame (12) is fixedly installed on the top of the support frame (12), and a heat insulation layer (13) is fixedly connected to the top of the heat insulation layer (13), and a heating component is installed inside the heat insulation layer (13). An air inlet / outlet assembly is provided on one side of the vacuum furnace (11) and is used to evacuate the inner cavity of the insulation layer (13). A bracket (3) is fixedly installed on one side of the top of the base (1), and a drive mechanism is installed on the bracket (3). The drive mechanism is used to deliver negative pressure or airflow to the air inlet and outlet components.

2. The rapid heating energy-saving vacuum furnace device according to claim 1, characterized in that, The heating assembly includes a plurality of heating rings (15) disposed on the inner wall of the insulation layer (13), and the heating rings (15) are all fixedly installed on the inner wall of the insulation layer (13) by bolts.

3. The rapid heating energy-saving vacuum furnace device according to claim 2, characterized in that, The vacuum furnace (11) has a furnace cover (14) mounted on its port via a hinge. A docking frame is fixedly installed in the middle of the inner wall of the furnace cover (14), and the docking frame is connected to the port of the insulation layer (13).

4. The rapid heating energy-saving vacuum furnace device according to claim 3, characterized in that, A bracket (16) is fixedly installed at the bottom of the insulation layer (13), and the bracket (16) is used to place the processed parts.

5. The rapid heating energy-saving vacuum furnace device according to claim 4, characterized in that, The air inlet and outlet assembly includes two negative pressure pipes (2) that penetrate the vacuum furnace (11) and the insulation layer (13) on the same side. The negative pressure ports of the negative pressure pipes (2) are distributed in the inner cavity of the insulation layer (13). The vacuum furnace (11) is provided with two air inlet pipes (21). The air outlets of the air inlet pipes (21) are distributed between the inner cavity of the vacuum furnace (11) and the outer side of the insulation layer (13). The insulation layer (13) is provided with several connecting pipes (22). The two ends of the connecting pipes (22) are respectively connected to the inner cavity of the vacuum furnace (11) and the inner cavity of the insulation layer (13). An exhaust pipe (23) is connected and installed in the middle of the tail end of the vacuum furnace (11). The other end of the exhaust pipe (23) is vertically upward.

6. The rapid heating energy-saving vacuum furnace device according to claim 5, characterized in that, The driving mechanism includes a sealing cylinder (31) fixedly installed on one side of the bracket (3). A sealing plug (32) is movably installed inside the sealing cylinder (31). A squeezing rod (33) is fixedly installed on one side of the sealing plug (32). A driving arm (34) is rotatably installed on the other end of the squeezing rod (33). The other end of the driving arm (34) is rotatably connected to the outer wall of the driving disc (35). The other ends of the negative pressure pipe (2) and the air inlet pipe (21) are both connected to the sealing cylinder (31). The two corresponding negative pressure pipes (2) and air inlet pipes (21) are distributed on the same side of the sealing cylinder (31).

7. The rapid heating energy-saving vacuum furnace device according to claim 6, characterized in that, A motor (36) is fixedly installed on one side of the top of the base (1). The output end of the motor (36) is connected to the transmission shaft, and the other end of the transmission shaft is fixedly connected to the center of the drive disk (35).

8. The rapid heating energy-saving vacuum furnace device according to claim 7, characterized in that, Both sides of the sealing cylinder (31) are connected to inlet and outlet pipes (37), and electric valves (24) are installed on the inlet and outlet pipes (37), negative pressure pipe (2), air inlet pipe (21), connecting pipe (22) and exhaust pipe (23).

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