CN220393818U - Vacuum heat treatment furnace with air heating function - Google Patents
Vacuum heat treatment furnace with air heating function Download PDFInfo
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- CN220393818U CN220393818U CN202321508128.XU CN202321508128U CN220393818U CN 220393818 U CN220393818 U CN 220393818U CN 202321508128 U CN202321508128 U CN 202321508128U CN 220393818 U CN220393818 U CN 220393818U
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- air door
- movable air
- heating chamber
- furnace shell
- heating
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a vacuum heat treatment furnace with air heating, which comprises a furnace shell, a heating chamber arranged in the furnace shell, a hearth arranged in the heating chamber and used for bearing a workpiece, and a vacuum system used for vacuumizing the air in the heating chamber; the front screen of the heating chamber body is provided with a convection fan, the power part of the convection fan is arranged on the outer wall of the furnace shell at the corresponding side, the blades extend into the heating chamber, and the blowing branch paths of the convection fan are concentrated in the area where the workpiece is positioned; the left movable air door, the right movable air door, the upper movable air door and the lower movable air door are respectively arranged at the left, the right, the upper and the lower sides of the heating chamber, and the power parts for driving the left movable air door, the right movable air door, the upper movable air door and the lower movable air door to open and close are all fixed on the furnace shell; a spiral air duct is arranged in a furnace shell at the rear end of the heating chamber, a heat exchanger is arranged at the output end of the spiral air duct, and an impeller driven by a motor is arranged at the input end of the spiral air duct.
Description
Technical Field
The utility model relates to the technical field of vacuum furnaces, in particular to a vacuum heat treatment furnace with air heating.
Background
At present, uneven heat distribution often occurs when a vacuum furnace is heated, so that the heating time is increased, natural cooling is mainly relied on during cooling, the cooling effect is poor, the cooling time is long, and the production efficiency is low.
Disclosure of Invention
According to the above-mentioned technical problems, a vacuum heat treatment furnace with air heating is provided which can greatly improve the problem of uneven temperature during heating and the slow cooling rate during cooling.
The utility model adopts the following technical means:
the vacuum heat treatment furnace with air heating comprises a furnace shell, a heating chamber arranged in the furnace shell, a hearth arranged in the heating chamber and used for bearing a workpiece, and a vacuum system used for vacuumizing the heating chamber and/or the air in the furnace shell;
the front screen of the heating chamber body is provided with a convection fan, the power part of the convection fan is arranged on the outer wall of the furnace shell at the corresponding side, the blades extend into the heating chamber, and the blowing branch paths of the convection fan are concentrated in the area where the workpiece is positioned;
the left movable air door, the right movable air door, the upper movable air door and the lower movable air door are respectively arranged at the left, the right, the upper and the lower sides of the heating chamber, and the power parts for driving the left movable air door, the right movable air door, the upper movable air door and the lower movable air door to open and close are all fixed on the furnace shell;
a spiral air duct is arranged in a furnace shell at the rear end of the heating chamber, a heat exchanger is arranged at the output end of the spiral air duct, and an impeller driven by a motor is arranged at the input end of the spiral air duct.
Further, the method comprises the steps of,
the power parts of the left movable air door, the right movable air door, the upper movable air door and the lower movable air door are telescopic cylinders.
The front screen of the heating chamber body is provided with a convection fan, the left side, the right side, the upper side and the lower side of the heating chamber are respectively provided with a movable air door, and the rear part of the heating chamber is provided with a spiral air duct; the air inlet and outlet air outlet are arranged on the upper and lower air doors, and the air inlet and outlet air outlet are arranged on the upper and lower air doors; when cooling, the left, right, upper and lower air doors can be opened during natural cooling, so that the cooling is faster; when the air is inflated and cooled, the left air door and the right air door are closed, and the upper air door and the lower air door are continuously opened, so that the workpiece is cooled quickly, the cooling speed is improved, and the tapping time is shortened. The problem of influencing production efficiency is solved, the energy consumption is reduced to the minimum, and the production efficiency is improved.
Compared with the prior art, the utility model has the following advantages:
1. the utility model has the advantages of energy loss in the heating process, energy conservation and capability of inflating in the heating process.
2. The cooling speed is improved, and the tapping time is shortened.
3. The problem of influencing production efficiency is solved, the energy consumption is reduced to the minimum, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a cross-sectional view of the present utility model.
In the figure: 1. a convection fan; 2. a furnace shell; 3. a heating chamber; 4. a left movable air door; 5. a heat exchanger; 6. a spiral air duct; 7. an impeller; 8. a motor; 9. a right movable air door; 10. an upper movable air door; 11. a lower movable air door; 12. a hearth; 13. a vacuum system.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
As shown in fig. 1 and 2, the present utility model provides a vacuum heat treatment furnace with air heating, comprising a furnace shell 2, a heating chamber 3 arranged inside the furnace shell 2, a hearth 12 arranged inside the heating chamber 3 for carrying a workpiece, and a vacuum system 13 for evacuating air inside the heating chamber 3 and/or the furnace shell 2;
a convection fan 1 is arranged on the front screen of the heating chamber 3, the power part of the convection fan 1 is arranged on the outer wall of the furnace shell 2 at the corresponding side, blades extend into the heating chamber 3, and the blowing branch paths of the convection fan 1 are concentrated in the area where the workpiece is located;
the left, right, upper and lower parts of the heating chamber 3 are respectively provided with a movable air door, namely a left movable air door 4, a right movable air door 9, an upper movable air door 10 and a lower movable air door 11, and power parts for driving the left movable air door 4, the right movable air door 9, the upper movable air door 10 and the lower movable air door 11 to open and close are fixed on the furnace shell 2;
a spiral air duct 6 is arranged in the furnace shell 2 at the rear end of the heating chamber 3, a heat exchanger 5 is arranged at the output end of the spiral air duct 6, and an impeller 7 driven by a motor 8 is arranged at the input end of the spiral air duct 6.
Further, the method comprises the steps of,
the power parts of the left movable air door 4, the right movable air door 9, the upper movable air door 10 and the lower movable air door 11 are telescopic cylinders.
The front screen of the heating chamber body is provided with a convection fan 1, the left, right, upper and lower parts of the heating chamber are provided with movable air doors (4.9.10.11), and the rear part of the heating chamber is provided with a spiral air duct 6; the air door has the advantages that when in heating, the left, right, upper and lower movable air doors (4.9.10.11) are closed, no vent holes are formed, energy loss in the heating process is avoided, energy is saved, meanwhile, the convection fan 1 can be inflated in the heating process, and the heating speed is ensured to be faster and more uniform; when cooling, the left and right movable air doors (4.9.10.11) can be opened during natural cooling, so that the cooling is faster; when the air is inflated and cooled, the left and right movable air doors (10.11) are closed, and the upper and lower movable air doors (10.11) are continuously opened, so that the workpiece is cooled quickly, the cooling speed is improved, and the tapping time is shortened. The problem of influencing production efficiency is solved, the energy consumption is reduced to the minimum, and the production efficiency is improved.
The program automatic control system is arranged according to the operation flow: starting a vacuum system 13, and evacuating the vacuum chamber; when the vacuum degree reaches the heating requirement, stopping evacuating, charging air into the furnace, starting the convection fan 1, starting heating, and closing a left movable air door (4.9.10.11), a right movable air door and a left movable air door; after the heating program is finished, the convection fan 1 is closed, the left and right movable air doors (4.9.10.11) are opened, natural cooling is started to a set temperature, the left and right movable air doors (10.11) are closed, charging cooling is started, cooling set pressure is reached in the furnace, the motor 8 drives the impeller 7, and when the furnace is cooled to 50 ℃, the motor 8 is stopped. The door can be opened to take materials, and the whole process operation is finished.
Cooling gas flow path during air cooling: for example, the heat exchanger 5, the impeller 7, the air duct 6, the lower movable air door 9, the workpiece, the upper movable air door 4 and the heat exchanger 5 are sequentially circulated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (2)
1. The vacuum heat treatment furnace with air heating comprises a furnace shell (2), a heating chamber (3) arranged inside the furnace shell (2), a hearth (12) arranged inside the heating chamber (3) and used for bearing a workpiece, and a vacuum system (13) used for vacuumizing the air inside the heating chamber (3) and/or the furnace shell (2);
the method is characterized in that:
a convection fan (1) is arranged on the front screen of the heating chamber (3), the power part of the convection fan (1) is arranged on the outer wall of the furnace shell (2) at the corresponding side, the blades extend into the heating chamber (3), and the blowing branch paths of the convection fan (1) are concentrated in the area where the workpiece is located;
the left, right, upper and lower parts of the heating chamber (3) are respectively provided with a movable air door, namely a left movable air door (4), a right movable air door (9), an upper movable air door (10) and a lower movable air door (11), and power parts for driving the left movable air door (4), the right movable air door (9), the upper movable air door (10) and the lower movable air door (11) to open and close are fixed on the furnace shell (2);
a spiral air duct (6) is arranged in the furnace shell (2) at the rear end of the heating chamber (3), a heat exchanger (5) is arranged at the output end of the spiral air duct (6), and an impeller (7) driven by a motor (8) is arranged at the input end of the spiral air duct (6).
2. A vacuum heat treatment furnace with air heating according to claim 1, wherein:
the power parts of the left movable air door (4), the right movable air door (9), the upper movable air door (10) and the lower movable air door (11) are telescopic cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321508128.XU CN220393818U (en) | 2023-06-14 | 2023-06-14 | Vacuum heat treatment furnace with air heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321508128.XU CN220393818U (en) | 2023-06-14 | 2023-06-14 | Vacuum heat treatment furnace with air heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220393818U true CN220393818U (en) | 2024-01-26 |
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ID=89609520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321508128.XU Active CN220393818U (en) | 2023-06-14 | 2023-06-14 | Vacuum heat treatment furnace with air heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220393818U (en) |
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2023
- 2023-06-14 CN CN202321508128.XU patent/CN220393818U/en active Active
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