CN208907076U - A kind of protective device of platinum channel welded type thermocouple - Google Patents
A kind of protective device of platinum channel welded type thermocouple Download PDFInfo
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- CN208907076U CN208907076U CN201821227838.4U CN201821227838U CN208907076U CN 208907076 U CN208907076 U CN 208907076U CN 201821227838 U CN201821227838 U CN 201821227838U CN 208907076 U CN208907076 U CN 208907076U
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- platinum channel
- thermocouple
- protective device
- welded type
- thermo wires
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Abstract
The utility model provides a kind of protective device of platinum channel welded type thermocouple, is sealedly and fixedly connected the protection cap on platinum channel outer surface including edge；A guard space is formed between protection cap and platinum channel, guard space is for accommodating thermocouple thermo wires root；It is set in protection cap there are two wire hole is gone out, is respectively used to the extraction of the first thermocouple thermo wires and the second thermocouple thermo wires；Guard space and two, which go out, is filled with sealed insulation filler material in wire hole.The utility model provides the protection zone of a sealing, and the intensity of thermocouple thermo wires root can be enhanced, and reduces welding installation process and heating initial stage channel expansion is mobile to physical damnification caused by thermocouple, avoid the stress deformation of thermocouple thermo wires root；And sealed insulation filler material can inhibit platinum volatilization decaying in the thermocouple under high temperature.
Description
Technical field
The utility model belongs to the technical field of liquid-crystalline glasses path thermocouple instrumentation, and in particular to a kind of platinum is logical
The protective device of road welded type thermocouple.
Background technique
The production of liquid crystal glass base belongs to continuous high temperature operation, and the technological temperature of different zones in production process is wanted
The temperature asking very strict, and being frequent along with the variation of some process environment states in actual production process
The abnormalities and the technique adjustment of some particular times etc. such as degree fluctuation.Wherein, high temperature ring suffered by platinum channel equipment
Border is relatively severe, basic by the way of the welded type thermocouple of platinum channel outer surface herein at present, Lai Shixian temperature
Real-time tracking monitoring and adjusting.
But the technical issues of current welded type thermocouple is primarily present is exactly to weld installation process and heating initial stage channel
The mobile high temperature to platinum in thermocouple in physical damnification and normal productive process caused by thermocouple of expansion is decayed.Two kinds
Just more fragile thermocouple thermo wires root aging effects are very big to original root for mode, caused by consequence be exactly these damage areas
The actual temperature in domain accurately can not be monitored and be reasonably adjusted.It therefore, must be from for the protection of platinum channel welded type thermocouple
Root is started with, and avoids the stress deformation of thermocouple thermo wires root, and press down to platinum volatilization decaying in the thermocouple under high temperature
System.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of protection of platinum channel welded type thermocouple
Device, it is ensured that the intensity of thermocouple welding root, and the insulating properties of thermocouple thermo wires root can be improved, reduce decaying speed
Rate.
The utility model is to be achieved through the following technical solutions:
A kind of protective device of platinum channel welded type thermocouple, including edge are sealedly and fixedly connected in platinum channel
Protection cap on outer surface；A guard space is formed between protection cap and platinum channel, guard space is for accommodating thermocouple idol
Silk root；It is set in protection cap there are two wire hole is gone out, is respectively used to the extraction of the first thermocouple thermo wires and the second thermocouple thermo wires；It protects
It protects space and two goes out to be filled with sealed insulation filler material in wire hole.
Preferably, protection sleeve pipe is coaxially arranged in wire hole out, the outer surface of protection sleeve pipe and the inner surface of wire hole out paste
Tightly, sealed insulation filler material is filled in protection sleeve pipe.
Further, the material of protection sleeve pipe is aluminium oxide ceramics.
Further, two diameters for going out wire hole are 10-15mm, and it is 20-40mm that two, which go out the distance between wire hole,；It protects
The internal diameter of protecting pipe is 5-10mm.
Preferably, the height of guard space is 5-15mm.
Preferably, the material of protection cap is PtRh5 or PtRh10.
Preferably, protection cap is the structure of platinum rhodium material coated alumina refractory material.
Preferably, sealed insulation filler material is alumina hollow ball filler material.
Compared with prior art, the utility model has technical effect beneficial below:
The protective device of platinum channel welded type thermocouple described in the utility model, on the basis of former pad, by heat
A protection cap is arranged in the welding root of galvanic couple, and filling sealed insulation is filled out in the guard space formed between protection cap and platinum channel
Charge provides the protection zone of a sealing, can be enhanced the intensity of thermocouple thermo wires root, reduce welding installation process and
Heating initial stage channel expansion is mobile to physical damnification caused by thermocouple, avoids the stress deformation of thermocouple thermo wires root；And
Sealed insulation filler material can inhibit platinum volatilization decaying in the thermocouple under high temperature；Distinguish using by two thermo wires of thermocouple
It is drawn from the different wire holes that goes out, the insulating properties of two thermocouple thermo wires can be increased, two thermocouple thermo wires is avoided to use
Mutually winding contact in journey, and influence measurement result.The utility model can guarantee in equipment installation and initial stage temperature-rise period
Thermocouple thermo wires integrity, and reduce the high temperature rate of decay in later period use process, be the prison of platinum channel technological temperature
Control and adjustment provide relatively reliable data reference.
Further, rationally setting two goes out the distance of wire hole, it can be ensured that two thermocouple thermo wires are completely separable.It protects
Sheath bore designs the normal filling that should be able to guarantee sealed insulation filler material.
Further, rationally, guarantee has enough spaces for installing thermocouple thermo wires root for the height design of guard space
Portion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the protective device of platinum channel welded type thermocouple described in the utility model.
In figure: 1 is platinum channel, and 2 be protection cap, and 3 be the first thermocouple thermo wires, and 4 be the second thermocouple thermo wires, and 5 be close
Insulation stopping is sealed, 6 is go out wire hole, and 7 be protection sleeve pipe, and 8 be thermocouple thermo wires root.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, it is described be the explanation to the utility model and
It is not to limit.
It is the protective device of platinum channel welded type thermocouple described in the utility model referring to Fig. 1.Due in practical weldering
It connects and the later period installs in temperature-rise period, the thermocouple thermo wires root 8 on platinum channel surface is repeatedly touched, or even arrives heating initial stage
The whole expansion movement of platinum channel 1 may directly result in natively more fragile thermocouple thermo wires root 8 and be broken, and lose survey
The effect of temperature.Therefore, a protection cap 2 is arranged in 8 pad region of thermocouple thermo wires root in the utility model protective device, specifically
It is that the edge sealing welding of protection cap 2 is on the outer surface of platinum channel 1, the shape between protection cap 2 and platinum channel 1
At a zonal guard space, the height of guard space reserves 5-15mm, preferably 5-10mm, and thermocouple thermo wires root 8 is welded
Contact is located in guard space.
It is set in protection cap 2 there are two wire hole 6 is gone out, is coaxially arranged with protection sleeve pipe 7, the appearance of protection sleeve pipe 7 in wire hole 6 out
Face and the inner surface of wire hole 6 out are adjacent to；First thermocouple thermo wires 3 and the second thermocouple thermo wires 4 separate 20- in opposite direction
40mm, preferably separately 20mm, then drawn from two protection sleeve pipes 7 in protection cap 2 respectively；Two diameters for going out wire hole 6 are equal
For 10-15mm, it is 20-40mm that two, which go out the distance between wire hole,；The internal diameter of protection sleeve pipe 7 be 5-10mm, preferably 5-8mm, really
Protecting protection sleeve pipe 7, there are enough gaps for finally pouring into the slurries of sealed insulation filler material 5, while sealed insulation filler material
5 are also packed into guard space.Thermocouple thermo wires root 8 can thoroughly be fixed after 5 grout cures of Insulation stopping to be sealed
And it insulate to the full extent.
The material of protection sleeve pipe 7 is aluminium oxide ceramics.The material of protection cap 2 is PtRh5 or PtRh10, and protection cap 2 can also
Think the structure of platinum rhodium material coated alumina refractory material.Sealed insulation filler material 5 can be resistance to aluminums such as alumina hollow balls
Fiery material, and it is diluted to slurry with hot water, it is poured into from the inner hole of alumina sleeve 7 as fluid, finally sealed.
The protective device of the utility model platinum channel welded type thermocouple, by adding one on the basis of former pad
A protection cap 2, for providing the protection zone of a sealing, and using two thermocouple thermo wires are separated in opposite direction
Mode increases insulating properties, finally by the slurries for pouring into sealed insulation filler material 5, thoroughly fixes thermocouple thermo wires root of having insulated
8 region.Guarantee 8 integrity of thermocouple thermo wires root in equipment installation and initial stage temperature-rise period, and reduces later period use
The high temperature rate of decay in the process provides relatively reliable data reference for the monitoring and adjustment of platinum channel technological temperature.
Claims (8)
1. a kind of protective device of platinum channel welded type thermocouple, which is characterized in that be sealedly and fixedly connected including edge
Protection cap (2) on platinum channel (1) outer surface；A guard space is formed between protection cap (2) and platinum channel (1), is protected
Shield space is for accommodating thermocouple thermo wires root (8)；It is set in protection cap (2) there are two wire hole (6) are gone out, is respectively used to the first thermoelectricity
The extraction of thermo wires (3) and the second thermocouple thermo wires (4)；Guard space and two go out in wire hole (6) to fill out filled with sealed insulation
Charge (5).
2. a kind of protective device of platinum channel welded type thermocouple according to claim 1, which is characterized in that go out wire hole
(6) it is coaxially arranged with protection sleeve pipe (7) in, the outer surface of protection sleeve pipe (7) and the inner surface of wire hole out (6) are adjacent to, protective case
It manages in (7) and is filled with sealed insulation filler material (5).
3. a kind of protective device of platinum channel welded type thermocouple according to claim 2, which is characterized in that protective case
The material for managing (7) is aluminium oxide ceramics.
4. a kind of protective device of platinum channel welded type thermocouple according to claim 2, which is characterized in that two go out
The diameter of wire hole (6) is 10-15mm, and it is 20-40mm that two, which go out the distance between wire hole (6),；The internal diameter of protection sleeve pipe (7) is
5-10mm。
5. a kind of protective device of platinum channel welded type thermocouple according to claim 1, which is characterized in that protection is empty
Between height be 5-15mm.
6. a kind of protective device of platinum channel welded type thermocouple according to claim 1, which is characterized in that protection cap
(2) material is PtRh5 or PtRh10.
7. a kind of protective device of platinum channel welded type thermocouple according to claim 1, which is characterized in that protection cap
It (2) is the structure of platinum rhodium material coated alumina refractory material.
8. a kind of protective device of platinum channel welded type thermocouple according to claim 1, which is characterized in that sealing is exhausted
Edge filler material (5) is alumina hollow ball filler material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227838.4U CN208907076U (en) | 2018-08-01 | 2018-08-01 | A kind of protective device of platinum channel welded type thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227838.4U CN208907076U (en) | 2018-08-01 | 2018-08-01 | A kind of protective device of platinum channel welded type thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208907076U true CN208907076U (en) | 2019-05-28 |
Family
ID=66612785
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821227838.4U Active CN208907076U (en) | 2018-08-01 | 2018-08-01 | A kind of protective device of platinum channel welded type thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208907076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482837A (en) * | 2019-08-30 | 2019-11-22 | 彩虹显示器件股份有限公司 | A kind of welded seal structure and its application method for platinum channel in base plate glass manufacturing process |
| CN114436507A (en) * | 2022-02-24 | 2022-05-06 | 彩虹显示器件股份有限公司 | Galvanic couple protection structure and method for top of platinum channel cooling section |
-
2018
- 2018-08-01 CN CN201821227838.4U patent/CN208907076U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482837A (en) * | 2019-08-30 | 2019-11-22 | 彩虹显示器件股份有限公司 | A kind of welded seal structure and its application method for platinum channel in base plate glass manufacturing process |
| CN114436507A (en) * | 2022-02-24 | 2022-05-06 | 彩虹显示器件股份有限公司 | Galvanic couple protection structure and method for top of platinum channel cooling section |
| CN114436507B (en) * | 2022-02-24 | 2023-08-11 | 彩虹显示器件股份有限公司 | Thermocouple protection structure and method for top of platinum channel cooling section |
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