CN218994030U - High-efficiency energy-saving nitrogen atmosphere furnace - Google Patents
High-efficiency energy-saving nitrogen atmosphere furnace Download PDFInfo
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- CN218994030U CN218994030U CN202221205108.0U CN202221205108U CN218994030U CN 218994030 U CN218994030 U CN 218994030U CN 202221205108 U CN202221205108 U CN 202221205108U CN 218994030 U CN218994030 U CN 218994030U
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- furnace body
- vacuum pumping
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- 239000012299 nitrogen atmosphere Substances 0.000 title claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 238000005086 pumping Methods 0.000 claims description 18
- 239000011229 interlayer Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 10
- 239000012298 atmosphere Substances 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 10
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002356 single layer Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005256 carbonitriding Methods 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a high-efficiency energy-saving nitrogen atmosphere furnace, which relates to the field of atmosphere furnace structures and comprises a mounting frame, a furnace body arranged on the mounting frame and a liner arranged in the furnace body, wherein a sealing furnace body cover is arranged on the top cover of the furnace body, a sealing liner cover is arranged on the top cover of the liner, a heating coil is arranged on the inner wall of the liner, an inner nitrogen interface is arranged on the liner, an outer nitrogen interface is arranged on the furnace body, electric control valves are respectively arranged on the inner nitrogen interface and the outer nitrogen interface, an inner vacuumizing port is communicated with the liner, and an outer vacuumizing port is communicated with the furnace body. According to the utility model, the sealing effect of the product can be greatly improved by arranging the double-layer sandwich structure of the furnace body and the inner container, and the sandwich structure of the inner container and the surrounding environment can be formed by vacuumizing or filling nitrogen into the furnace body, so that the heat dissipation of the heating coil in the heating process is greatly reduced, and the heating efficiency and uniformity are effectively improved.
Description
Technical Field
The utility model relates to the field of atmosphere furnace structures, in particular to a high-efficiency energy-saving nitrogen atmosphere furnace.
Background
The atmosphere furnace is prepared by introducing a certain composition into the furnace at a certain temperature to achieve the aim of certain heat treatment, such as gas carburizing, carbonitriding, bright quenching, annealing, normalizing and the like. In order to control the atmosphere in the furnace and maintain the pressure in the furnace, the working space in the furnace is always isolated from the outside air, so that air leakage and air suction are avoided as much as possible.
The prior atmosphere furnace generally adopts a single-layer furnace structure as described in the 'sealing device of a high-temperature atmosphere furnace hearth' of China patent with publication number of CN203374801U, the structure is simple, but the sealing effect requirement on the joint is higher, and the heat dissipation of the single-layer furnace hearth in the heating process is faster, so that the consumed energy is higher in the heat treatment process of the product.
Disclosure of Invention
The utility model aims to solve the technical problems of further improving the sealing effect of the existing atmosphere furnace, high energy consumption and the like by providing the efficient energy-saving nitrogen atmosphere furnace.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a high-efficient energy-conserving nitrogen atmosphere stove, is in including mounting bracket, setting furnace body and setting on the mounting bracket are in the inner bag in the furnace body, furnace body top lid is equipped with sealed furnace body lid, inner bag top lid is equipped with sealed inner bag lid, the inner bag inner wall is equipped with heating coil, interior nitrogen gas interface has been seted up on the inner bag, outer nitrogen gas interface has been seted up on the furnace body, be equipped with automatically controlled valve on interior nitrogen gas interface and the outer nitrogen gas interface respectively, the intercommunication has interior evacuation mouth on the inner bag, the intercommunication has outer evacuation mouth on the furnace body, interior evacuation mouth and outer evacuation mouth are linked together with evacuating device respectively.
Preferably, a rotary table with a rotary motor is arranged in the inner container.
Preferably, the outer wall of the inner container is provided with a vacuum interlayer.
Preferably, the vacuum pumping device comprises a vacuum pump, a vacuum pumping pipe connected with the vacuum pumping pump and a total electromagnetic valve arranged on the vacuum pumping pipe, wherein the inner vacuum pumping port and the outer vacuum pumping port are respectively communicated with the vacuum pumping pipe through pipelines, an inner electromagnetic valve is arranged on a pipeline connected with the inner vacuum pumping port, and an outer electromagnetic valve is arranged on a pipeline connected with the outer vacuum pumping port.
Preferably, the vacuum interlayer is connected with the vacuumizing device through a pipeline, and an interlayer electromagnetic valve is arranged on the pipeline connected with the vacuum interlayer.
By adopting the technical scheme, the double-layer sandwich structure of the furnace body and the inner container can greatly improve the sealing effect of the product, and the sandwich structure of the inner container and the surrounding environment can be formed by vacuumizing or filling nitrogen into the furnace body, so that the heat dissipation of the heating coil in the heating process is greatly reduced, and the heating efficiency and the heating uniformity are effectively improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure, a 1-mounting frame, a 2-furnace body, a 3-inner container, a 4-sealed furnace body cover, a 5-sealed inner container cover, a 6-rotating motor, a 7-rotating table, an 8-heating coil, a 9-vacuum interlayer, a 10-internal nitrogen interface, an 11-external nitrogen interface, a 12-internal vacuumizing port, a 13-external vacuumizing port, a 14-vacuumizing pump, a 15-vacuumizing pipe, a 16-total electromagnetic valve, a 17-internal electromagnetic valve, a 18-external electromagnetic valve and a 19-interlayer electromagnetic valve.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, a high-efficiency energy-saving nitrogen atmosphere furnace comprises a mounting frame 1, a furnace body 2 arranged on the mounting frame 1 and a liner 3 arranged in the furnace body 2, wherein a sealing furnace body cover 4 is arranged on the top cover of the furnace body 2, a sealing liner cover 5 is arranged on the top cover of the liner 3, a heating coil 8 is arranged on the inner wall of the liner 3, an inner nitrogen interface 10 is arranged on the liner 3, an outer nitrogen interface 11 is arranged on the furnace body 2, electric control valves are respectively arranged on the inner nitrogen interface 10 and the outer nitrogen interface 11, an inner vacuumizing port 12 is communicated on the liner 3, an outer vacuumizing port 13 is communicated on the furnace body 2, and the inner vacuumizing port 12 and the outer vacuumizing port 13 are respectively communicated with a vacuumizing device.
When the device is used, the inner nitrogen interface 10 and the outer nitrogen interface 11 are respectively communicated with an external nitrogen supply device, a product to be heat-treated is placed into the inner container 3 through the sealed furnace body cover 4 and the sealed inner container cover 5, the inner container 3 is vacuumized through the vacuumizing device, after reaching the vacuum degree, an electric control valve on the inner nitrogen interface 10 is opened, nitrogen is introduced into the inner container 3, and the heat treatment of the product under the nitrogen atmosphere is ensured; when the heat treatment process of the product has higher requirement on the tightness, the furnace body 2 can be vacuumized through the outer vacuumizing port 13 to cause negative pressure in the furnace body 2, so that a better compaction effect is achieved on the liner 3, and the tightness in the liner 3 is ensured; when the heat treatment process of the product has higher requirement on the purity of the nitrogen atmosphere, after the furnace body 2 is vacuumized through the outer vacuumizing port 13, nitrogen is introduced into the furnace body 2 through the outer nitrogen interface 11, so that the inner container 3 is in the nitrogen atmosphere, and impurities such as oxygen in the surrounding environment can be effectively prevented from entering the inner container 3 to influence the heat treatment effect.
According to the utility model, the sealing effect of the product can be greatly improved by arranging the double-layer sandwich structure of the furnace body 2 and the inner container 3, and the sandwich structure of the inner container 3 and the surrounding environment can be formed by vacuumizing or filling nitrogen into the furnace body 2, so that the heat dissipation of the heating coil 8 in the heating process is greatly reduced, and the heating efficiency and uniformity are effectively improved.
In order to improve the heat treatment effect of the product in the inner container 3, the inner container 3 is internally provided with a rotary table 7 with a rotary motor 6, and during use, the product can be fixedly placed on the rotary table 7 through a fixing clamp and other structures, and under the driving of the rotary motor 6, the product can be driven to be heated uniformly in the inner container 3, so that the heat treatment effect is ensured.
In order to further reduce the energy loss of the product in the heat treatment process, the outer wall of the inner container 3 is provided with a vacuum interlayer 9, so that an effective heat insulation effect can be achieved when the heating coil 8 carries out heat treatment on the product in the inner container 3, and the rapid heat dissipation is prevented.
Specifically, the vacuumizing device comprises a vacuumizing pump 14, a vacuumizing pipe 15 connected with the vacuumizing pump 14 and a total electromagnetic valve 16 arranged on the vacuumizing pipe 15, wherein the inner vacuumizing port 12 and the outer vacuumizing port 13 are respectively communicated with the vacuumizing pipe 15 through pipelines, an inner electromagnetic valve 17 is arranged on the pipeline connected with the inner vacuumizing port 12, and an outer electromagnetic valve 18 is arranged on the pipeline connected with the outer vacuumizing port 13, so that the inner and outer vacuumizing treatment of the liner 3 and the furnace body 2 is conveniently realized through one vacuumizing pump 14.
In order to be convenient for maintain the vacuum degree of vacuum intermediate layer 9, prevent to lead to the fact thermal-insulated effect damage because the vacuum degree of vacuum intermediate layer 9 reduces, vacuum intermediate layer 9 is connected with evacuation tube 15 through the pipeline, install intermediate layer solenoid valve 19 on the pipeline that is connected with vacuum intermediate layer 9 to be convenient for when the vacuum degree in vacuum intermediate layer 9 reduces, carry out the evacuation processing to vacuum intermediate layer 9 through evacuation pump 14, in the in-service use, in order to be convenient for the daily maintenance of staff, can install the manometer on the pipeline that is connected with vacuum intermediate layer 9, the staff of being convenient for directly perceived monitor.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (5)
1. A high-efficiency energy-saving nitrogen atmosphere furnace is characterized in that: including mounting bracket (1), setting are in furnace body (2) and setting on mounting bracket (1) are in inner bag (3) in furnace body (2), furnace body (2) top lid is equipped with sealed furnace body lid (4), inner bag (3) top lid is equipped with sealed inner bag lid (5), inner bag (3) inner wall is equipped with heating coil (8), inner nitrogen interface (10) have been seted up on inner bag (3), outer nitrogen interface (11) have been seted up on furnace body (2), be equipped with the electrically controlled valve on inner nitrogen interface (10) and outer nitrogen interface (11) respectively, the intercommunication has interior evacuation mouth (12) on inner bag (3), the intercommunication has outer evacuation mouth (13) on furnace body (2), interior evacuation mouth (12) and outer evacuation mouth (13) are linked together with evacuating device respectively.
2. The energy efficient nitrogen atmosphere furnace according to claim 1, wherein: a rotary table (7) with a rotary motor (6) is arranged in the inner container (3).
3. The energy efficient nitrogen atmosphere furnace according to claim 1, wherein: the outer wall of the inner container (3) is provided with a vacuum interlayer (9).
4. The energy efficient nitrogen atmosphere furnace according to claim 1, wherein: the vacuum pumping device comprises a vacuum pump (14), a vacuum pumping pipe (15) connected with the vacuum pumping pump (14) and a total electromagnetic valve (16) arranged on the vacuum pumping pipe (15), wherein the inner vacuum pumping port (12) and the outer vacuum pumping port (13) are respectively communicated with the vacuum pumping pipe (15) through pipelines, an inner electromagnetic valve (17) is arranged on a pipeline connected with the inner vacuum pumping port (12), and an outer electromagnetic valve (18) is arranged on a pipeline connected with the outer vacuum pumping port (13).
5. A high efficiency energy saving nitrogen atmosphere furnace according to claim 3 wherein: the vacuum interlayer (9) is connected with the vacuumizing device through a pipeline, and an interlayer electromagnetic valve (19) is arranged on the pipeline connected with the vacuum interlayer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221205108.0U CN218994030U (en) | 2022-05-19 | 2022-05-19 | High-efficiency energy-saving nitrogen atmosphere furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221205108.0U CN218994030U (en) | 2022-05-19 | 2022-05-19 | High-efficiency energy-saving nitrogen atmosphere furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218994030U true CN218994030U (en) | 2023-05-09 |
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ID=86192437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221205108.0U Active CN218994030U (en) | 2022-05-19 | 2022-05-19 | High-efficiency energy-saving nitrogen atmosphere furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218994030U (en) |
-
2022
- 2022-05-19 CN CN202221205108.0U patent/CN218994030U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231120 Address after: No. 1 Tonghu Road, Ehu Town, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Shusen Technology Co.,Ltd. Address before: 214000 Hongfeng Bridge, Hongxi Village, Hongshan Street, Xinwu District, Wuxi City, Jiangsu Province Patentee before: WUXI KAOSIDE SCIENCE AND TECHNOLOGY CO.,LTD. |