CN210996974U - Continuous atmosphere protection brazing furnace hearth - Google Patents
Continuous atmosphere protection brazing furnace hearth Download PDFInfo
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- CN210996974U CN210996974U CN201922023894.7U CN201922023894U CN210996974U CN 210996974 U CN210996974 U CN 210996974U CN 201922023894 U CN201922023894 U CN 201922023894U CN 210996974 U CN210996974 U CN 210996974U
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Abstract
The utility model discloses a continuous atmosphere protection stove furnace of brazing, furnace is both ends open-ended sharp tunnel type structure, furnace is enclosed by diapire, two lateral walls, top cap, the diapire comprises the lower ceramic fiber board layer that from the bottom up set gradually, the cotton layer of end heat preservation, goes up ceramic fiber board layer, end firebrick layer, the lateral wall comprises the side firebrick layer that sets gradually from inside to outside, the cotton layer of side heat preservation, rock wool board layer sandwich core, and the top cap comprises steel framework and the ceramic fiber layer of setting in steel framework the higher authority on end firebrick layer is provided with the end and reserves logical groove, reserve logical inslot at the end and install bottom heating element install top heating element below the steel framework. The utility model discloses a furnace's diapire, two lateral walls, top cap can realize good high temperature resistance and heat insulating ability under the prerequisite of proof strength. Furthermore, the utility model discloses a furnace of sharp tunnel type is convenient for realize continuous production, and efficiency is higher.
Description
Technical Field
The utility model belongs to the technical field of the equipment of brazing, concretely relates to stove furnace is brazed in continuous atmosphere protection.
Background
Chinese patent application No. 201220479541.3 discloses a high temperature brazing furnace, wherein the hearth is a heat preservation layer made of a single material, and although good heat preservation can be realized in the actual operation process, the high temperature resistance is general, which can lead to strength reduction at high temperature, and the thermal deformation is large, thus the brazing quality is easily influenced. In addition, during the brazing operation, the temperature of the outer wall of the hearth is also high, so that burning accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the technical problems, the utility model provides a furnace chamber of a continuous atmosphere protection brazing furnace.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a continuous atmosphere protection brazing furnace, furnace is both ends open-ended sharp tunnel type structure, furnace is enclosed by diapire, two lateral walls, top cap, the diapire comprises the lower ceramic fiber board layer that from the bottom up set gradually, the cotton layer of end heat preservation, goes up ceramic fiber board layer, end firebrick layer, the lateral wall comprises the side firebrick layer that sets gradually from inside to outside, the cotton layer of side heat preservation, rock wool sandwich plate layer, the top cap comprises steel frame and the ceramic fiber layer of setting in steel frame the higher authority on end firebrick layer is provided with the end and reserves logical groove, reserve logical inslot at the end and install bottom heating element install top heating element below the steel frame.
As a further improvement, the bottom reserved through grooves are multiple, and the bottom reserved through grooves are arranged at intervals along the length direction of the hearth.
As a further improvement, a layer of heat insulation cotton is arranged at the bottom of the bottom reserved through groove, two ends of the bottom reserved through groove are respectively provided with a refractory brick, the bottom heating element is composed of a ceramic tube and a resistance wire arranged in the ceramic tube, and two ends of the ceramic tube are respectively supported on the refractory bricks.
As a further improvement, a corundum-mullite support plate is arranged on the bottom refractory brick layer.
As a further improvement, the top heating elements are multiple, and the top heating elements are arranged at intervals along the length direction of the hearth.
As a further improvement, a plurality of protective atmosphere input ports communicated to the hearth are formed in the top cover.
As a further improvement, the furnace hearth temperature control device further comprises a temperature control device, wherein the temperature control device comprises a controller and a thermocouple arranged in the furnace hearth at intervals, the thermocouple is connected with the controller to send a temperature signal to the controller, and the controller is connected with the bottom heating element and/or the top heating element to control the power of the bottom heating element and/or the top heating element.
As a further improvement, the number of the thermocouples is multiple, and the thermocouples are arranged at intervals along the length direction of the hearth.
The utility model provides a continuous atmosphere protection brazing furnace, furnace is both ends open-ended sharp tunnel type structure, furnace is enclosed by diapire, two lateral walls, top cap, the diapire comprises the lower ceramic fiber board layer that from the bottom up set gradually, the cotton layer of end heat preservation, goes up ceramic fiber board layer, end firebrick layer, the lateral wall comprises the side firebrick layer that sets gradually from inside to outside, the cotton layer of side heat preservation, rock wool sandwich plate layer, the top cap comprises steel framework and the ceramic fiber layer of setting in steel framework the higher authority on end firebrick layer is provided with end reservation and leads to the groove, end reservation is led to and is installed bottom heating element in the groove install top heating element below the steel framework. The utility model discloses a furnace's diapire, two lateral walls, top cap all adopt multilayer composite construction, still can realize good high temperature resistance and heat insulating ability under the prerequisite of proof strength, and when the operation of brazing, furnace outer wall's temperature is also lower, is difficult for leading to the accident of burning. Furthermore, the utility model discloses a furnace all sets up heating element from top to bottom inside, and rate of heating is fast and the heating is even, and furnace adopts sharp tunnel type, is convenient for realize continuous production, and efficiency is higher.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
FIG. 1 is a schematic cross-sectional view of a furnace chamber of a continuous atmosphere protection brazing furnace according to the present invention.
FIG. 2 is a schematic longitudinal section of a furnace chamber of the continuous atmosphere protection brazing furnace of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
As shown in FIG. 1 and FIG. 2, the embodiment of the utility model provides a continuous atmosphere protection stove furnace of brazing, furnace is both ends open-ended sharp tunnel type structure, furnace 2 is preheating zone, heating zone, slow cooling section respectively from the entry to the export in proper order. Hearth 2 is enclosed by diapire 3, two lateral walls 4, top cap 5 and becomes, diapire 3 comprises lower ceramic fiber board layer 31, the cotton layer 32 of end heat preservation, last ceramic fiber board layer 33, the refractory brick layer 34 at the end that from the bottom up set gradually, lateral wall 4 comprises the side refractory brick layer 41 that sets gradually from inside to outside, the cotton layer 42 of side heat preservation, rock wool sandwich panel layer 43, top cap 5 comprises steel frame 51 and the ceramic fiber layer 52 of setting in steel frame 51. Like this, the diapire of furnace 2, two lateral walls, top cap all adopt multilayer composite construction, still can realize good high temperature resistance and heat insulating ability under the prerequisite of assurance intensity, and when the operation of brazing, the temperature of furnace outer wall is also lower, is difficult for leading to the burn accident.
A plurality of bottom reserved through grooves 35 are formed in the upper surface of the bottom refractory brick layer 34, the bottom reserved through grooves 35 are arranged at intervals along the length direction of the hearth 2, and the bottom heating elements 8 are installed in the bottom reserved through grooves 35. The bottom of the bottom reserved through groove 35 is provided with a layer of heat preservation cotton 37, two ends of the bottom reserved through groove 35 are respectively provided with a refractory brick 36, the bottom heating element 8 is composed of a ceramic tube 81 and a resistance wire 82 arranged in the ceramic tube 81, two ends of the ceramic tube 81 are respectively supported on the refractory bricks 36, the bottom refractory brick layer 34 is further provided with a layer of corundum-mullite support plate 7, and the corundum-mullite support plate 7 plays a role in isolating the bottom heating element 8 from a workpiece. A top heating element 6 is mounted below the steel frame 51. The number of the top heating elements 6 is multiple, and the top heating elements 6 are arranged at intervals along the length direction of the hearth 2. The top heating element 6 is of the same construction as the bottom heating element 8 and is likewise formed by a ceramic tube and a resistance wire arranged therein.
The utility model discloses all set up a plurality of heating element about the furnace of brazing the stove is inside, rate of heating is fast and the heating is even, and furnace adopts sharp tunnel type, is convenient for realize continuous production, and efficiency is higher.
In a further preferred embodiment, the top cover 5 is provided with a plurality of protective atmosphere inlets which are communicated with the hearth 2 so as to carry out protection by using continuous atmosphere during brazing. The protective gas is ammonia decomposition gas (75% H2+25N2), the decomposition environment is one atmosphere, and the temperature is 750-850 ℃. The protective gas has strong reducibility, and can ensure that the atmosphere in the furnace has sufficient reducibility and strength. And a gas control valve can be arranged on a pipeline connected with the protective atmosphere input port to control the flow of the gas of the ammonia decomposition gas entering the hearth.
As a further preferred embodiment, the furnace further comprises a temperature control device, the temperature control device comprises a controller and a plurality of thermocouples arranged in the furnace at intervals, and the thermocouples are arranged at intervals along the length direction of the furnace 2. The thermocouple is connected to a controller to send a temperature signal to the controller, which is connected to the bottom heating element and/or the top heating element to control the power of the bottom heating element and/or the top heating element. Therefore, each thermocouple forms a temperature monitoring point, specifically, the preheating section and the slow cooling section are respectively provided with one temperature monitoring point, the heating section is provided with n monitoring points, the temperature is controlled accurately by the thermocouple, the temperature control precision is +/-2 ℃, the thermocouple is preferably arranged at the top of a hearth of the brazing furnace, a heating system can be well controlled by a control system, and different brazing process requirements are met.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore should not be construed as limiting the scope of the invention.
In conclusion, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications can be made by those skilled in the art, unless such changes and modifications depart from the scope of the present invention, they should be construed as being included therein.
Claims (8)
1. A continuous atmosphere protection brazing furnace hearth is of a linear tunnel type structure with two open ends, and is characterized in that the hearth (2) is surrounded by a bottom wall (3), two side walls (4) and a top cover (5), the bottom wall (3) is composed of a lower ceramic fiber board layer (31), a bottom heat insulation cotton layer (32), an upper ceramic fiber board layer (33) and a bottom refractory brick layer (34) which are sequentially arranged from bottom to top, the side walls (4) are composed of a side refractory brick layer (41), a side heat insulation cotton layer (42) and a rock wool sandwich board layer (43) which are sequentially arranged from inside to outside, the top cover (5) is composed of a steel frame (51) and a ceramic fiber layer (52) arranged in the steel frame (51), a bottom reserved through groove (35) is arranged on the bottom refractory brick layer (34), and a bottom heating element (8) is arranged in the bottom reserved through groove (35), a top heating element (6) is mounted below the steel frame (51).
2. The hearth of the continuous atmosphere protection brazing furnace according to claim 1, wherein the number of the bottom reserved through grooves (35) is multiple, and the bottom reserved through grooves (35) are arranged at intervals along the length direction of the hearth (2).
3. The continuous atmosphere protection brazing furnace hearth according to the claim 2, characterized in that a layer of heat insulation cotton (37) is arranged at the bottom of the bottom reserved through groove (35), a refractory brick (36) is arranged at each end of the bottom reserved through groove (35), the bottom heating element (8) is composed of a ceramic tube (81) and a resistance wire (82) arranged in the ceramic tube (81), and each end of the ceramic tube (81) is supported on the refractory brick (36).
4. The furnace hearth of the continuous atmosphere protection brazing furnace according to claim 1, characterized in that a corundum-mullite support plate (7) is further arranged on the bottom refractory brick layer (34).
5. A continuous atmosphere protection brazing furnace hearth according to claim 1, characterised in that said top heating elements (6) are plural, each top heating element (6) being arranged at intervals along the length of the hearth (2).
6. A continuous atmosphere protection brazing furnace hearth according to claim 1, characterised in that said roof (5) is provided with a plurality of protective atmosphere feed openings to the hearth (2).
7. The continuous atmosphere protection brazing furnace hearth according to any one of claims 1 to 6, further comprising a temperature control device, the temperature control device comprising a controller and a thermocouple spaced in the hearth, the thermocouple being connected to the controller to send a temperature signal to the controller, the controller being connected to the bottom heating element and/or the top heating element to control the power of the bottom heating element and/or the top heating element.
8. The continuous atmosphere protection brazing furnace hearth according to claim 7, wherein the number of thermocouples is multiple, and each thermocouple is arranged at intervals along the length direction of the hearth (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922023894.7U CN210996974U (en) | 2019-11-21 | 2019-11-21 | Continuous atmosphere protection brazing furnace hearth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922023894.7U CN210996974U (en) | 2019-11-21 | 2019-11-21 | Continuous atmosphere protection brazing furnace hearth |
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| Publication Number | Publication Date |
|---|---|
| CN210996974U true CN210996974U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922023894.7U Expired - Fee Related CN210996974U (en) | 2019-11-21 | 2019-11-21 | Continuous atmosphere protection brazing furnace hearth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243160A (en) * | 2021-12-22 | 2022-03-25 | 芜湖汇展新能源科技有限公司 | Integrated manufacturing method of new energy battery box body and liquid cooling plate |
-
2019
- 2019-11-21 CN CN201922023894.7U patent/CN210996974U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243160A (en) * | 2021-12-22 | 2022-03-25 | 芜湖汇展新能源科技有限公司 | Integrated manufacturing method of new energy battery box body and liquid cooling plate |
| CN114243160B (en) * | 2021-12-22 | 2024-02-20 | 芜湖汇展新能源科技有限公司 | Integrated manufacturing method of new energy battery box body and liquid cooling plate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20211121 |