CN217111213U - Tungsten-rhenium thermocouple for vacuum furnace - Google Patents
Tungsten-rhenium thermocouple for vacuum furnace Download PDFInfo
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- CN217111213U CN217111213U CN202220820234.0U CN202220820234U CN217111213U CN 217111213 U CN217111213 U CN 217111213U CN 202220820234 U CN202220820234 U CN 202220820234U CN 217111213 U CN217111213 U CN 217111213U
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Abstract
The utility model relates to a tungsten rhenium thermocouple technical field, specific tungsten rhenium thermocouple for vacuum furnace that says so, including first connecting tube and second connecting tube, first connecting tube and second connecting tube cooperation chucking, first connecting tube sets up the inside at the second connecting tube, first connecting tube is inside to be provided with corundum insulating core, corundum insulating core tip fixedly connected with beryllium oxide, corundum insulating core and beryllium oxide outside are provided with the molybdenum tube, second connecting tube rear end is provided with coupling assembling, coupling assembling is connected with the connector, the utility model discloses disperse pressure through rotating, avoided tungsten rhenium thermocouple self to receive too big pressure to solve the problem that tungsten rhenium thermocouple self intensity still has certain restriction, under self receiving high-strength pressure, reduced self and can have cracked situation greatly, the practicability of the equipment is improved.
Description
Technical Field
The utility model relates to a tungsten rhenium thermocouple technical field particularly, relates to tungsten rhenium thermocouple for vacuum furnace.
Background
The tungsten-rhenium thermocouple is a high-temperature-resistant thermocouple and has the characteristics of good temperature-potential linear relation, reliable thermal stability and low price. The temperature measuring device is matched with a display instrument, can directly measure the temperature of liquid, steam, gas medium and the like, and is arranged in the vacuum furnace so as to measure the temperature in the furnace.
After retrieval, if the application number is cn201420118206.x, the high-temperature high-precision ultrahigh-voltage tungsten-rhenium thermocouple comprises a plug connector, a connecting piece, a fixing device, a refractory metal protection tube, an insulating tube and a thermocouple, wherein the plug connector is connected with the connecting piece, the connecting piece is connected with the fixing device, the fixing device is connected with the refractory metal protection tube, the insulating tube is arranged in the refractory metal protection tube, and the thermocouple is arranged on the insulating tube; the method is characterized in that: the fixing device is fixedly connected with the refractory metal protection pipe through brazing, the refractory metal protection pipe of the utility model is fixedly connected with the fixing device through brazing, and compared with the traditional argon arc welding fixedly connecting mode, the strength of a welding seam is high and is not easy to break; and the refractory metal protection tube is also provided with an opening, so that the purpose of no pressure difference in the refractory metal protection tube is realized, and the conditions of bending, breaking and the like of the refractory metal protection tube are avoided, thereby preventing the tungsten-rhenium thermocouple from losing efficacy.
However, the strength of the tungsten-rhenium thermocouple is enhanced by changing the welding mode, but the strength of the tungsten-rhenium thermocouple is limited to a certain extent, and the tungsten-rhenium thermocouple still can be broken under the high-strength pressure, so that the tungsten-rhenium thermocouple for the vacuum furnace is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides the tungsten rhenium thermocouple for vacuum furnace, can effectively solve the change that mentions in the background art and strengthened the intensity of tungsten rhenium thermocouple self, nevertheless tungsten rhenium thermocouple self intensity still has certain restriction, receives under the pressure of high strength at self, still can have the problem of the cracked condition.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the tungsten-rhenium thermocouple for the vacuum furnace comprises a first connecting pipeline and a second connecting pipeline, wherein the first connecting pipeline and the second connecting pipeline are matched and clamped tightly, the first connecting pipeline is arranged inside the second connecting pipeline, a corundum insulating core is arranged inside the first connecting pipeline, the end part of the corundum insulating core is fixedly connected with beryllium oxide, molybdenum tubes are arranged outside the corundum insulating core and the beryllium oxide, a connecting assembly is arranged at the rear end of the second connecting pipeline, and the connecting assembly is connected with a connector.
Preferably, a flange is mounted outside the first connecting pipeline, and the flange is arranged at the joint of the first connecting pipeline and the second connecting pipeline.
Preferably, the connecting assembly comprises a housing, and a rotating shaft is arranged on the outer wall of the housing.
Preferably, the rotating shaft is fixedly connected with an ear plate, and one end of the ear plate is provided with a connecting rod.
Preferably, the connecting rod is fixedly connected with the second connecting pipeline.
Preferably, the end part of the shell far away from the connecting rod is fixedly connected with a guide rod, and the guide rod is matched and fixedly connected inside the connector.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. second connecting tube overlaps establishes in first connecting tube, beryllium oxide establishes inside the molybdenum tube with the insulating core cover of corundum simultaneously, make beryllium oxide and the insulating core outside of corundum be provided with a plurality of protective layers, high stable effect has, through connecting rod fixedly connected with second connecting tube, it is connected with the connector to rotate through the otic placode, when tungsten rhenium thermocouple sets up the pressure in the stove, disperse away pressure through rotating, the pressure of having avoided tungsten rhenium thermocouple self to receive is too big, thereby the problem that tungsten rhenium thermocouple self intensity still has certain restriction has been solved, under self received the pressure of high strength, self can have cracked situation, the practicality of equipment has been improved to self having reduced greatly.
2. Meanwhile, the beryllium oxide can react with acid and strong alkali. The beryllium oxide is white powder and has a high melting point, and the corundum insulating core has insulativity while having the advantage of high melting point, and isolates the potential safety hazard of static electricity, so that the corundum insulating core has the advantages of good temperature-potential linear relation, reliable thermal stability and low price.
Drawings
FIG. 1 is a schematic view of the overall structure of a W-Re thermocouple for a vacuum furnace according to the present invention;
FIG. 2 is a partial front view of a W-Re thermocouple for a vacuum furnace according to the present invention;
fig. 3 is an enlarged schematic structural view of a point a in fig. 1 of the tungsten-rhenium thermocouple for the vacuum furnace according to the present invention.
In the figure: 1. a flange plate; 2. a first connecting pipe; 3. a corundum insulating core; 4. beryllium oxide; 5. a molybdenum tube; 6. a connecting assembly; 601. a housing; 602. an ear plate; 603. a connecting rod; 604. a rotating shaft; 605. a guide bar; 7. a connector assembly; 8. a second connecting conduit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1 to 3, the tungsten-rhenium thermocouple for the vacuum furnace includes a first connecting pipeline 2 and a second connecting pipeline 8, the first connecting pipeline 2 and the second connecting pipeline 8 are tightly fitted, the first connecting pipeline 2 is arranged inside the second connecting pipeline 8, a corundum insulating core 3 is arranged inside the first connecting pipeline 2, the end of the corundum insulating core 3 is fixedly connected with a beryllium oxide 4, molybdenum tubes are arranged outside the corundum insulating core 3 and the beryllium oxide 4, a connecting assembly 6 is arranged at the rear end of the second connecting pipeline 8, and the connecting assembly 6 is connected with a connector 7.
In this embodiment, a flange plate 1 is installed outside the first connecting pipe 2, the flange plate 1 is disposed at a joint of the first connecting pipe 2 and the second connecting pipe 8, the second connecting pipe 8 is sleeved in the first connecting pipe 2, and the beryllium oxide 4 and the corundum insulating core 3 are sleeved inside the molybdenum pipe 5, so that a plurality of protective layers are disposed outside the beryllium oxide 4 and the corundum insulating core 3, and the protective layers have a high-stability function, and are fixedly connected to the second connecting pipe 8 through a connecting rod 603.
In this embodiment, the connecting assembly 6 includes a housing 601, and a rotating shaft 604 is disposed on an outer wall of the housing 601.
In this embodiment, pivot 604 fixedly connected with otic placode 602, otic placode 602 one end is provided with connecting rod 603, rotates through otic placode 602 and is connected with connector 7, when tungsten rhenium thermocouple sets up and receives pressure in the stove, disperses away pressure through rotating, and the pressure of having avoided tungsten rhenium thermocouple self to receive is too big to the problem that tungsten rhenium thermocouple self intensity still has certain restriction has been solved, under self received the pressure of high strength, has reduced self and can have cracked situation greatly, has improved the practicality of equipment.
In this embodiment, the connecting rod 603 is fixedly connected to the second connecting pipe 8, and meanwhile, the beryllium oxide 4 can react with both acid and strong base. Beryllium oxide is white powder and has a high melting point, and the corundum insulation core 3 has insulation property while having the advantage of high melting point, and isolates the potential safety hazard of static electricity, so that the corundum insulation core has the advantages of good temperature-potential linear relation, reliable thermal stability and low price.
In this embodiment, a guide rod 605 is fixedly connected to an end of the housing 601 far from the connecting rod 603, and the guide rod 605 is fixedly connected to the inside of the connector 7 in a matching manner.
The working principle of the tungsten-rhenium thermocouple for the vacuum furnace is as follows: second connecting tube 8 cover is established in first connecting tube 2, beryllium oxide 4 establishes inside molybdenum tube 5 with 3 covers of corundum insulating core simultaneously, make beryllium oxide 4 and corundum insulating core 3 outsides be provided with a plurality of protective layers, have high stable effect, through connecting rod 603 fixedly connected with second connecting tube 8, it is connected with connector 7 to rotate through otic placode 602, when tungsten rhenium thermocouple sets up the pressure in the stove, disperse away pressure through rotating, the pressure that has avoided tungsten rhenium thermocouple self to receive is too big, thereby the problem that tungsten rhenium thermocouple self intensity still has certain restriction has been solved, under self received the pressure of high strength, the cracked situation can exist in self having reduced greatly, the practicality of equipment has been improved.
Meanwhile, the beryllium oxide 4 can react with acid and strong alkali. Beryllium oxide is white powder and has a high melting point, and the corundum insulation core 3 has insulation property while having the advantage of high melting point, and isolates the potential safety hazard of static electricity, so that the corundum insulation core has the advantages of good temperature-potential linear relation, reliable thermal stability and low price.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all embodiments cannot be exhausted here, and all obvious variations or changes introduced by the technical solution of the present invention are still within the protection scope of the present invention.
Claims (6)
1. Tungsten-rhenium thermocouple for vacuum furnace, including first connecting tube (2) and second connecting tube (8), characterized by: the corundum insulation pipe is characterized in that the first connecting pipeline (2) and the second connecting pipeline (8) are matched and clamped tightly, the first connecting pipeline (2) is arranged inside the second connecting pipeline (8), a corundum insulation core (3) is arranged inside the first connecting pipeline (2), the end part of the corundum insulation core (3) is fixedly connected with beryllium oxide (4), molybdenum pipes are arranged outside the corundum insulation core (3) and the beryllium oxide (4), a connecting assembly (6) is arranged at the rear end of the second connecting pipeline (8), and the connecting assembly (6) is connected with a connector (7).
2. The tungsten-rhenium thermocouple for the vacuum furnace according to claim 1, characterized in that: the first connecting pipeline (2) externally mounted has ring flange (1), ring flange (1) sets up in first connecting pipeline (2) and second connecting pipeline (8) junction.
3. The tungsten-rhenium thermocouple for the vacuum furnace according to claim 1, characterized in that: the connecting assembly (6) comprises a shell (601), and a rotating shaft (604) is arranged on the outer wall of the shell (601).
4. The tungsten-rhenium thermocouple for the vacuum furnace as set forth in claim 3, wherein: the rotating shaft (604) is fixedly connected with an ear plate (602), and one end of the ear plate (602) is provided with a connecting rod (603).
5. The W-Re thermocouple for vacuum furnaces as set forth in claim 4, wherein: the connecting rod (603) is fixedly connected with the second connecting pipeline (8).
6. The W-Re thermocouple for vacuum furnaces as set forth in claim 5, wherein: the end part, far away from the connecting rod (603), of the shell (601) is fixedly connected with a guide rod (605), and the guide rod (605) is matched and fixedly connected inside the connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220820234.0U CN217111213U (en) | 2022-04-11 | 2022-04-11 | Tungsten-rhenium thermocouple for vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220820234.0U CN217111213U (en) | 2022-04-11 | 2022-04-11 | Tungsten-rhenium thermocouple for vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217111213U true CN217111213U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220820234.0U Active CN217111213U (en) | 2022-04-11 | 2022-04-11 | Tungsten-rhenium thermocouple for vacuum furnace |
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| Country | Link |
|---|---|
| CN (1) | CN217111213U (en) |
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- 2022-04-11 CN CN202220820234.0U patent/CN217111213U/en active Active
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