CN213984556U - High-temperature resistance furnace - Google Patents
High-temperature resistance furnace Download PDFInfo
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- CN213984556U CN213984556U CN202022871296.8U CN202022871296U CN213984556U CN 213984556 U CN213984556 U CN 213984556U CN 202022871296 U CN202022871296 U CN 202022871296U CN 213984556 U CN213984556 U CN 213984556U
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Abstract
The utility model relates to a high temperature furnace technical field especially relates to a high temperature resistance furnace. In order to solve the problem of oxidation of heat preservation materials in the high-temperature resistance furnace, the utility model provides a high-temperature resistance furnace, which is provided with a heat insulation sealing structure, wherein a graphite sleeve is sleeved on a graphite electrode of the high-temperature resistance furnace and is in interference fit with a furnace pipe heat preservation layer in the high-temperature resistance furnace; the aluminum oxide insulating sleeve is sleeved at the connecting part of the graphite electrode and the copper electrode, the positioning end of the aluminum oxide insulating sleeve is inserted into the graphite sleeve, and the free end of the aluminum oxide insulating sleeve is pressed on a support ring sleeved on the copper electrode; the heat insulation sealing gasket is sleeved on the alumina insulation sleeve and props against the furnace pipe heat insulation layer. The utility model discloses be provided with thermal-insulated seal structure in the high temperature resistance furnace, this thermal-insulated seal structure can completely cut off electrode and stove courage heat preservation, can prevent that the air current from leaking, oxidation stove courage heat preservation.
Description
Technical Field
The utility model relates to a high temperature furnace technical field especially relates to a high temperature resistance furnace.
Background
Although the high-temperature resistance furnace is used in a vacuum or inert gas environment, the absolute oxygen-free environment of the high-temperature resistance furnace cannot be ensured, so that the heat-insulating material of the high-temperature resistance furnace is easy to oxidize in the high-temperature environment in the operation process of the high-temperature resistance furnace. In addition, in the high-temperature resistance furnace, when a product is sintered, sintering exhaust gas is generally released, water or oxygen is inevitably contained in the sintering exhaust gas, and the sintering exhaust gas leaks through a gap between the electrode and the furnace in the high-temperature resistance furnace, thereby causing the oxidation of the heat insulating material located in the gap between the electrode and the furnace to be accelerated.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of oxidation of heat preservation materials in the high-temperature resistance furnace, the utility model provides a high-temperature resistance furnace, wherein a heat insulation sealing structure is arranged in the high-temperature resistance furnace, the heat insulation sealing structure comprises a graphite sleeve, an alumina insulation sleeve and a heat insulation sealing gasket, the graphite sleeve is sleeved on a graphite electrode of the high-temperature resistance furnace and is in interference fit with a furnace pipe heat preservation layer in the high-temperature resistance furnace; the aluminum oxide insulating sleeve is sleeved at the connecting part of the graphite electrode and the copper electrode, the positioning end of the aluminum oxide insulating sleeve is inserted into the graphite sleeve, and the free end of the aluminum oxide insulating sleeve is pressed on a support ring sleeved on the copper electrode; the heat insulation sealing gasket is sleeved on the alumina insulation sleeve and props against the furnace pipe heat insulation layer. The high-temperature resistance furnace is provided with the heat insulation sealing structure formed by the graphite sleeve, the alumina insulation sleeve, the heat insulation sealing gasket and the support ring, the heat insulation sealing structure can isolate the electrode and the furnace pipe heat preservation layer, effectively prevent air flow from passing through a gap between the electrode and the furnace pipe, and oxidize the furnace pipe heat preservation layer positioned between the electrode and the furnace pipe; in addition, the graphite sleeve in the heat-insulating sealing gasket is in interference fit with the furnace pipe heat-insulating layer, so that airflow leakage can be prevented, and the furnace pipe heat-insulating layer can be oxidized.
Preferably, the graphite sleeve comprises a positioning ring and a sleeve, the positioning ring is fixed at the positioning end of the sleeve, and the outer diameter of the positioning ring is larger than that of the sleeve; and the inner wall of the free end of the sleeve is provided with a limiting clamping groove for clamping the positioning end of the alumina insulating sleeve. Thus, after the graphite sleeve is sleeved on the graphite electrode, the positioning ring can be pressed on the furnace pipe heat insulation layer, the free end of the sleeve is provided with a limiting clamping groove for clamping and limiting the positioning end of the alumina insulation sleeve, the probability of gas leakage is further reduced, and the heat insulation material in the high-temperature resistance furnace is prevented from being oxidized and damaged.
Preferably, a supporting ring table for supporting the heat insulation sealing gasket is arranged on the outer wall of the alumina insulation sleeve. Therefore, the aluminum oxide insulating sleeve can support the heat-insulating sealing gasket by using the supporting ring table, and the heat-insulating sealing gasket is prevented from being separated from the heat-insulating layer of the furnace pipe to influence the heat-insulating sealing effect of the heat-insulating sealing structure. Preferably, the alumina insulating sleeve is an alumina ceramic piece. The alumina insulating sleeve is simple and convenient to manufacture and good in insulating property.
Preferably, a limiting groove for accommodating the free end of the alumina insulation sleeve is arranged on the ring surface of the support ring facing the alumina insulation sleeve. Therefore, when the aluminum oxide insulating sleeve and the support ring are assembled together, the aluminum oxide insulating sleeve can be prevented from shaking on the support ring to influence the sealing performance of the heat-insulating sealing structure. Further, the limiting groove is an annular groove. The support ring is simple in structure and convenient to manufacture. Further preferably, the support ring is made of 304 stainless steel material. The support ring is not easy to rust and has long service life.
Drawings
Fig. 1 is a schematic sectional view of the high-temperature resistance furnace according to the present invention, when the heat-insulating sealing structure is assembled with the electrode and the furnace heat-insulating layer.
Detailed Description
The high temperature resistance furnace of the present invention will be described in detail with reference to fig. 1.
As shown in figure 1, the utility model discloses be provided with thermal-insulated seal structure in the high temperature resistance furnace, this thermal-insulated seal structure includes graphite sleeve 1, the insulating cover of aluminium oxide 2 and thermal-insulated sealed 3 that fills up. The graphite sleeve 1 is sleeved on a graphite electrode 41 of the high-temperature resistance furnace and is in interference fit with a furnace pipe heat-insulating layer 5 in the high-temperature resistance furnace. The alumina insulating sleeve 2 is sleeved at the connecting part of the graphite electrode 41 and the copper electrode 42, the positioning end of the alumina insulating sleeve 2 is inserted into the graphite sleeve 1, and the free end of the alumina insulating sleeve 2 is pressed on the support ring 6 sleeved on the copper electrode 42; the heat insulation sealing gasket 3 is sleeved on the alumina insulation sleeve 2 and props against the furnace pipe heat insulation layer 5. Preferably, the graphite sleeve 1 comprises a positioning ring 11 and a sleeve 12, the positioning ring 11 is fixed at the positioning end of the sleeve 12, the outer diameter of the positioning ring 11 is larger than that of the sleeve 12, and a position-limiting clamping groove (not shown in the figure) for clamping the positioning end of the alumina insulating sleeve 2 is arranged on the inner wall of the free end of the sleeve 12. Thus, after the graphite sleeve 1 is sleeved on the graphite electrode 41, the positioning ring 11 can be pressed on the furnace pipe heat-insulating layer 5, thereby further reducing the probability of gas leakage and avoiding the oxidation damage of heat-insulating materials in the high-temperature resistance furnace. Preferably, the outer wall of the alumina insulation sleeve 2 is provided with a support ring platform 21 for supporting the heat insulating seal 3. Like this, the usable supporting ring platform 21 of aluminium oxide insulating cover 2 supports heat insulating gasket 3, avoids heat insulating gasket 3 and 5 separations of stove courage heat preservation, influences heat insulating seal structure's thermal-insulated sealed effect. Preferably, the alumina insulation sleeve 2 is an alumina ceramic piece. The alumina insulating sleeve 2 is simple and convenient to manufacture and good in insulating property. Preferably, the heat-insulating sealing gasket 3 is a carbon felt gasket, so that the heat-insulating sealing performance is good, and the cost is low. Preferably, the support ring 6 is provided with a limiting groove 61 for accommodating the free end of the alumina insulation sleeve 2 on the ring surface facing the alumina insulation sleeve 2. Therefore, when the alumina insulation sleeve 2 and the support ring 6 are assembled together, the alumina insulation sleeve 2 can be prevented from shaking on the support ring 6 to influence the sealing performance of the heat insulation sealing structure. Preferably, the limiting groove 61 is an annular groove. Such a support ring 6 is simple in structure and convenient to manufacture. Preferably, the support ring 6 is made of 304 stainless steel material. The support ring 6 is not easy to rust and has long service life.
The high-temperature resistance furnace is provided with the heat insulation sealing structure formed by the graphite sleeve, the alumina insulation sleeve, the heat insulation sealing gasket and the support ring, the heat insulation sealing structure can isolate the electrode and the furnace pipe heat preservation layer, effectively prevent air flow from passing through a gap between the electrode and the furnace pipe, and oxidize the furnace pipe heat preservation layer positioned between the electrode and the furnace pipe; in addition, the graphite sleeve in the heat-insulating sealing gasket is in interference fit with the furnace pipe heat-insulating layer, so that airflow leakage can be prevented, and the furnace pipe heat-insulating layer can be oxidized.
Claims (7)
1. A high-temperature resistance furnace is characterized in that a heat insulation sealing structure is arranged in the high-temperature resistance furnace, the heat insulation sealing structure comprises a graphite sleeve, an alumina insulation sleeve and a heat insulation sealing gasket, and the graphite sleeve is sleeved on a graphite electrode of the high-temperature resistance furnace and is in interference fit with a furnace pipe heat insulation layer in the high-temperature resistance furnace; the aluminum oxide insulating sleeve is sleeved at the connecting part of the graphite electrode and the copper electrode, the positioning end of the aluminum oxide insulating sleeve is inserted into the graphite sleeve, and the free end of the aluminum oxide insulating sleeve is pressed on a support ring sleeved on the copper electrode; the heat insulation sealing gasket is sleeved on the alumina insulation sleeve and props against the furnace pipe heat insulation layer.
2. The high temperature resistance furnace of claim 1, wherein the graphite sleeve comprises a positioning ring and a sleeve, the positioning ring is fixed at a positioning end of the sleeve, and the outer diameter of the positioning ring is larger than the outer diameter of the sleeve; and the inner wall of the free end of the sleeve is provided with a limiting clamping groove for clamping the positioning end of the alumina insulating sleeve.
3. A high temperature resistance furnace as claimed in claim 1 or 2, wherein the outer wall of the alumina insulation sleeve is provided with a support ring platform for supporting the heat insulating sealing gasket.
4. A high temperature resistance furnace as claimed in claim 3, wherein the alumina insulation sleeve is an alumina ceramic.
5. A high-temperature resistance furnace according to claim 4, characterized in that the support ring is provided with a limiting groove for accommodating the free end of the alumina insulation sleeve on the ring surface facing the alumina insulation sleeve.
6. A high-temperature resistance furnace according to claim 5, wherein the limiting groove is an annular groove.
7. A high-temperature resistance furnace according to claim 6, wherein the support ring is made of 304 stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022871296.8U CN213984556U (en) | 2020-12-01 | 2020-12-01 | High-temperature resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022871296.8U CN213984556U (en) | 2020-12-01 | 2020-12-01 | High-temperature resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213984556U true CN213984556U (en) | 2021-08-17 |
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ID=77239598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022871296.8U Active CN213984556U (en) | 2020-12-01 | 2020-12-01 | High-temperature resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213984556U (en) |
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2020
- 2020-12-01 CN CN202022871296.8U patent/CN213984556U/en active Active
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