CN107606937A - A kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band - Google Patents
A kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band Download PDFInfo
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- CN107606937A CN107606937A CN201710801076.8A CN201710801076A CN107606937A CN 107606937 A CN107606937 A CN 107606937A CN 201710801076 A CN201710801076 A CN 201710801076A CN 107606937 A CN107606937 A CN 107606937A
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- corundum
- furnace
- sealing
- siphunculus
- thermocouple
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Abstract
The invention discloses a kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band, including fire resisting material of furnace body and furnace sealing shell, in addition to thermocouple, corundum insulation tube, corundum siphunculus, corundum outer protection tube and sealing bearing；The furnace sealing shell is provided with through hole, the sealing bearing is arranged on outside the through hole of the furnace sealing shell, the thermocouple passes through the corundum insulation tube, the corundum siphunculus is fixed on the through hole of the furnace sealing shell, the corundum insulation tube passes through the corundum siphunculus, and the corundum outer protection tube is set in outside one end of the corundum insulation tube；One end of the corundum outer protection tube passes through the fire resisting material of furnace body, another end opening of the corundum outer protection tube and leaves certain interval between the corundum siphunculus.By leaving certain interval between corundum outer protection tube openend and corundum siphunculus, the pressure differential allowed inside and outside corundum outer protection tube pipe balances the sintering furnace of the present invention, avoids pressure differential is excessive from causing corundum outer protection tube to be damaged.
Description
Technical field
The present invention relates to a kind of sintering furnace, more particularly to a kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band.
Background technology
Traditional temperature thermocouple is made up of thermocouple, corundum insulation tube, corundum outer protection tube, and thermocouple is exhausted through corundum
Edge pipe, corundum outer protection tube are set in outside corundum insulation tube, when applied to high-temperature atmosphere sintering furnace, if corundum outer protection tube worn
Furnace sealing shell and fire resisting material of furnace body are crossed, probes into stove and corundum outer protection tube is sealed, the tube wall of corundum outer protection tube
Bear to bear all atmosphere pressures while high temperature in burner hearth, it is easy to rupture and gas leakage, so as to influence the air-tightness of body of heater
With thermometric reliability.
The content of the invention
The shortcomings that in order to overcome prior art and deficiency, the invention discloses a kind of high-temperature atmosphere of the sealed thermocouple of band
Outside sintering furnace, including fire resisting material of furnace body and furnace sealing shell, in addition to thermocouple, corundum insulation tube, corundum siphunculus, corundum
Pillar and sealing bearing；The furnace sealing shell is provided with through hole, and the sealing bearing is arranged on the furnace sealing shell
Through hole outside, the thermocouple passes through the corundum insulation tube, and the corundum siphunculus is fixed on the logical of the furnace sealing shell
At hole, the corundum insulation tube passes through the corundum siphunculus, and the corundum outer protection tube is set in one end of the corundum insulation tube
Outside；One end of the corundum outer protection tube passes through the fire resisting material of furnace body, another end opening of the corundum outer protection tube and with
Certain interval is left between the corundum siphunculus.Such setting can utilize the gap between corundum outer protection tube and corundum siphunculus
Make corundum outer protection tube external and internal pressure equal, avoid damaging caused by pressure differential is excessive, the seal and pressure bearing position of the present apparatus is all located at
In the relatively low sealing shell of temperature outside burner hearth high-temperature region, so that sealing is more reliable.
Further, sealing ring group and O-ring group are provided between the sealing bearing and the corundum siphunculus, it is described close
Seal ring group and the O-ring group are set in outside the corundum siphunculus.Such setting can keep the sealing of corundum siphunculus.
Further, the sealing ring group includes the first sealing ring and the second sealing ring, and the O-ring group includes the first O
Type circle and the second O-ring, first sealing ring, the first O-ring, the second sealing ring and the second O-ring are from top to bottom set successively
Put in the sealing bearing.Stable and firm, the good airproof performance of such setting.
Further, it is provided with high-temperature plastic between the corundum siphunculus and the corundum insulation tube.Such setting can
To strengthen sealing.
Further, the sealing bearing is a cylinder, and its internal diameter is bigger than the through-hole diameter of the furnace sealing shell.This
The setting of sample can allow the bottom of O-ring to contact on the furnace sealing shell, make structure compacter.
Further, in addition to clamp nut, the sealing bearing inwall is provided with internal thread, the clamp nut it is outer
Wall is provided with external screw thread, and the internal thread cooperates with the external screw thread.Such simple in construction firm, cost is cheap.
Further, the outer wall upper end of the clamp nut is provided with outwardly chimb.The clamp nut it is convex
Side can be contacted on the sealing bearing, so as to make the sealing property of sealing bearing more preferable.
Further, the sealing bearing is welded on the furnace sealing shell.Such fixed form is simply firm.
The sintering furnace of the present invention is allowed outside corundum by leaving certain interval between corundum outer protection tube openend and corundum siphunculus
Pressure differential balance inside and outside pillar pipe, avoids pressure differential is excessive from causing corundum outer protection tube to be damaged.
In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Embodiment
Referring to Fig. 1, a kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band, including fire resisting material of furnace body 11 and body of heater
Sealing shell 12, in addition to thermocouple 20, corundum insulation tube 30, corundum siphunculus 40, corundum outer protection tube 50 and sealing bearing 60；Institute
State furnace sealing shell 12 and be provided with through hole, the sealing bearing 60 is arranged on outside the through hole of the furnace sealing shell 12, institute
To state thermocouple and pass through the corundum insulation tube 30, the corundum siphunculus 40 is fixed on the through hole of the furnace sealing shell 12,
The corundum insulation tube 30 passes through the corundum siphunculus 40, and the corundum outer protection tube 50 is set in the one of the corundum insulation tube 30
End is outer；One end of the corundum outer protection tube 50 passes through the fire resisting material of furnace body 11, and the other end of the corundum outer protection tube 50 is opened
Mouthful and leave certain interval between the corundum siphunculus 40.
Sealing ring group and O-ring group, the sealing ring are provided between the sealing bearing 60 and the corundum siphunculus 40
Group and the O-ring group are set in outside the corundum siphunculus 40.The sealing ring group includes the first sealing ring 71 and the second sealing
Ring 73, the O-ring group include the first O-ring 72 and the second O-ring 74, first sealing ring 71, the first O-ring 72,
Two sealing rings 73 and the second O-ring 74 are from top to bottom successively set in the sealing bearing 60.The corundum siphunculus 40 and institute
State and be provided with high-temperature plastic 80 between corundum insulation tube 30.
The sealing bearing 60 is a cylinder, and its internal diameter is bigger than the through-hole diameter of the furnace sealing shell 12.Also include
Clamp nut 90, the sealing inwall of bearing 60 are provided with internal thread 61, and the outer wall of the clamp nut 90 is provided with external screw thread
91, the internal thread 61 cooperates with the external screw thread 91.The outer wall upper end of the clamp nut 90 is provided with outwardly
Chimb 92.The sealing bearing 60 is welded on the furnace sealing shell 12.
The internal thread 61 of the external screw thread 91 of the clamp nut 90 and the sealing bearing 60, which cooperates, to be screwed, so that will
Sealing ring group and O-ring group are locked in the sealing bearing 60.It is described sealing bearing 60 internal diameter than the furnace sealing outside
The through-hole diameter of shell 12 is big, and the diameter of the sealing ring group and the O-ring group is all higher than the diameter of the through hole, so as to
The bottom of the second O-ring 74 is allowed to contact on the furnace sealing shell 12.Due to being protected outside the corundum insulation tube 30 and corundum
Pipe 50 penetrates refractory masses and one end is had hole, therefore the furnace sealing into furnace high-temperature area and refractory material
Gap between shell 12 and the fire resisting material of furnace body 11 is equal with the air pressure in the furnace high-temperature area.The corundum outer protection tube
50 make pipe external and internal pressure identical using its openend, avoid because of closing and caused by pipe external and internal pressure difference it is excessive.
Corundum outer protection tube 50 it is overall in furnace atmosphere so that the inside and outside wall of corundum outer protection tube 50 is not subject to pressure differential, heat
Galvanic couple is sealed through the gap in the hole of corundum insulation tube 30 by high-temp glue.Between the inwall of corundum insulation tube 30 and corundum siphunculus 40
Gap sealed by high-temp glue.
Between the outer wall and furnace sealing shell 12 of corundum siphunculus 40 by seal bearing 60, O-ring group, sealing ring group and
Clamp nut 90 is sealed.The sealing bearing 60 being welded on furnace sealing shell 12, bottom can pass through corundum siphunculus 40
But heatproof O-ring and sealing ring can not be by the way that sealing has screw thread to coordinate with clamp nut 90 so as to right in the inner circle of bearing 60
Corundum siphunculus 40, heatproof O-ring seal, sealing ring are fastened.In the present embodiment, the corundum outer protection tube 50 passes through a fixture
93 are relatively fixed with the fire resisting material of furnace body 11.
The corundum siphunculus 40, Ran Houyi that first insertion bonds together with corundum insulation tube 30, thermocouple in sealing bearing 60
It is secondary to be inserted in：Second O-ring 74, the second sealing ring 73, the first O-ring 72 and the first sealing ring 71, then be inserted in clamp nut 90 and enter
Row fit sealing.
In the present invention, one end that bearing the corundum outer protection tube 50 of high temperature has back cover is located in high-temperature region 94, openend
It is inside and outside to bear uniform pressure so as to not hold in space between the outer wall and furnace sealing shell 12 of fire resisting material of furnace body 11
Be stressed difference.Sealing structure is sealed and carried by the heatproof O-ring and high-temp glue reliably fastened all on the relatively low sealing furnace shell of temperature
For ensureing, so as to ensure the reliably working of high-temperature atmosphere sintering furnace thermocouple at 1700 DEG C of temperature and 0.5MPa pressure
And it is air tight, so as to ensure that the reliable and stable operation of high-temperature atmosphere sintering furnace.
The sintering furnace of the present invention is allowed outside corundum by leaving certain interval between corundum outer protection tube openend and corundum siphunculus
Pressure differential balance inside and outside pillar pipe, avoids pressure differential is excessive from causing corundum outer protection tube to be damaged.
The invention is not limited in above-mentioned embodiment, if the various changes or deformation to the present invention do not depart from the present invention
Spirit and scope, if these changes and deformation belong within the scope of the claim and equivalent technologies of the present invention, then this hair
It is bright to be also intended to comprising these changes and deformation.
Claims (8)
1. a kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band, including fire resisting material of furnace body and furnace sealing shell, it is special
Sign is：Also include thermocouple, corundum insulation tube, corundum siphunculus, corundum outer protection tube and sealing bearing；The furnace sealing shell
Through hole is provided with, the sealing bearing is arranged on outside the through hole of the furnace sealing shell, and the thermocouple passes through the corundum
Insulation tube, the corundum siphunculus are fixed on the through hole of the furnace sealing shell, and the corundum insulation tube passes through the corundum
Siphunculus, the corundum outer protection tube are set in outside one end of the corundum insulation tube；One end of the corundum outer protection tube is described in
Fire resisting material of furnace body, another end opening of the corundum outer protection tube and leaves certain interval between the corundum siphunculus.
A kind of 2. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 1, it is characterised in that：It is described close
Sealing ring group and O-ring group are provided between envelope bearing and the corundum siphunculus, the sealing ring group and the O-ring group are arranged
Outside the corundum siphunculus.
A kind of 3. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 2, it is characterised in that：It is described close
Seal ring group includes the first sealing ring and the second sealing ring, and the O-ring group includes the first O-ring and the second O-ring, and described first
Sealing ring, the first O-ring, the second sealing ring and the second O-ring are from top to bottom successively set in the sealing bearing.
A kind of 4. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 1, it is characterised in that：It is described firm
High-temperature plastic is provided between beautiful siphunculus and the corundum insulation tube.
A kind of 5. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 1, it is characterised in that：It is described close
Envelope bearing is a cylinder, and its internal diameter is bigger than the through-hole diameter of the furnace sealing shell.
A kind of 6. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 5, it is characterised in that：Also include
Clamp nut, the sealing bearing inwall are provided with internal thread, and the outer wall of the clamp nut is provided with external screw thread, the interior spiral shell
Line cooperates with the external screw thread.
A kind of 7. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 6, it is characterised in that：The pressure
The outer wall upper end of tight nut is provided with outwardly chimb.
A kind of 8. high-temperature atmosphere sintering furnace of the sealed thermocouple of band according to claim 1, it is characterised in that：It is described close
Envelope bearing is welded on the furnace sealing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801076.8A CN107606937B (en) | 2017-09-07 | 2017-09-07 | High-temperature atmosphere sintering furnace with sealed thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801076.8A CN107606937B (en) | 2017-09-07 | 2017-09-07 | High-temperature atmosphere sintering furnace with sealed thermocouple |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606937A true CN107606937A (en) | 2018-01-19 |
| CN107606937B CN107606937B (en) | 2023-05-09 |
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ID=61062612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710801076.8A Active CN107606937B (en) | 2017-09-07 | 2017-09-07 | High-temperature atmosphere sintering furnace with sealed thermocouple |
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| CN (1) | CN107606937B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109380A (en) * | 2021-05-17 | 2021-07-13 | 太原理工大学 | CT real-time scanning high-temperature pyrolysis coal rock test system and test method |
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| CN2513092Y (en) * | 2001-11-23 | 2002-09-25 | 魏东 | High pressure fluid precision temprature measuring device |
| EP1365219A2 (en) * | 2002-05-22 | 2003-11-26 | Shin-Etsu Chemical Co., Ltd. | Thermocouple protective tube |
| JP2004225142A (en) * | 2003-01-27 | 2004-08-12 | Jfe Steel Kk | Device for hermetically sealing and fixing furnace bottom part in blast furnace |
| CN202158905U (en) * | 2011-06-01 | 2012-03-07 | 邵阳纺织机械有限责任公司 | Temperature measuring simulating and insulation sealing device for ionitriding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113109380A (en) * | 2021-05-17 | 2021-07-13 | 太原理工大学 | CT real-time scanning high-temperature pyrolysis coal rock test system and test method |
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| Publication number | Publication date |
|---|---|
| CN107606937B (en) | 2023-05-09 |
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Address after: 512000 factory building C, No. 5 Chuangye Road, Wujiang District, Shaoguan City, Guangdong Province Applicant after: Guangdong Oulai high tech materials Co.,Ltd. Address before: 512000 in Yangshan Area, Muxi Industrial Park, Shaoguan City, Guangdong Province Applicant before: SHAOGUAN OULAI HI-TECH MATERIAL Co.,Ltd. |
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