CN106482854B - A kind of filament electric thermo-couple protector - Google Patents
A kind of filament electric thermo-couple protector Download PDFInfo
- Publication number
- CN106482854B CN106482854B CN201611013892.4A CN201611013892A CN106482854B CN 106482854 B CN106482854 B CN 106482854B CN 201611013892 A CN201611013892 A CN 201611013892A CN 106482854 B CN106482854 B CN 106482854B
- Authority
- CN
- China
- Prior art keywords
- plain conductor
- metal coating
- filament
- constantan
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
Abstract
The present invention relates to a kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is welded by two different plain conductor copper with plain conductor constantan, and plain conductor copper is supported and overlapped by a thicker metal thermo wires with plain conductor constantan.The thicker metal thermo wires outer cover has anti-skidding isolating shrinkable tube; metal coating shell is cased with outside the anti-skidding isolating shrinkable tube; the metal coating valve jacket has metal coating lid, and metal coating shell top has annular projection part, and the annular projection section lower card has cyclic annular buckle.The present invention covers metal coating lid, so that sufficiently effective protection can be obtained in filament thermocouple measurement end, extends the service life of filament thermocouple, filament thermocouple measurement end is protected not to be damaged by designing a kind of filament electric thermo-couple protector when idle；Metal coating lid is extracted when use, directly carries out operation measurement.Device is small and exquisite succinct, easy to operate.
Description
Technical field
The present invention relates to instrument field more particularly to a kind of filament electric thermo-couple protectors.
Background technique
In industrial processes, temperature is to need one of measurement and the important parameter controlled.In temperature measurement, thermoelectricity
It is even using extremely wide, it have that structure is simple, easily manufactured, measurement range is wide, precision is high, inertia is small and output signal just
In the teletransmission many advantages, such as.In the express occasion of temperature change, the requirement to thermocouple is that thermal capacity is small, to testee or
The temperature field interference of fluid is small, so generally use response time express thermocouple, i.e., exposed filament thermocouple, and
Wish that the geometric scale for measuring contact is as small as possible.However since filament thermocouple thermo wires diameter is in 0.05mm -0.1mm, and weld
The diameter of contact is then more small, is extremely easily broken off, and this fine thermo wires is usually not easy to obtain, expensive, if lose or
Damage is not easy to give for change and repair, and is inconvenient.
It is not at this stage that very much, filament thermocouple is processed into armour by existing technology some for the protection technique of filament thermocouple
Filament thermocouple is filled, the accuracy of measurement is greatly reduced；Also the metal protector having is set as two cylinders, the first cylinder
It is connected by thread head with nut with the second cylinder, disassembly installation is not very convenient.
Summary of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of filament electric thermo-couple protector.
The present invention is achieved through the following technical solutions:
Of the invention and a kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple are different by two
Plain conductor copper is welded with plain conductor constantan, and plain conductor copper and plain conductor constantan are by a thicker metal thermo wires
It supports and overlaps.The thicker metal thermo wires outer cover has anti-skidding isolating shrinkable tube, the anti-skidding isolating shrinkable tube outer cover
There is metal coating shell, the metal coating valve jacket has metal coating lid, and metal coating shell top has annular projection part,
The annular projection section lower card has cyclic annular buckle.
As the preferred technical solution of the present invention, the plain conductor copper and plain conductor constantan are needed in microscope
Lower welding.
As the preferred technical solution of the present invention, the thicker metal thermo wires diameter is not less than 0.3mm, has certain strong
Degree.
As the preferred technical solution of the present invention, it is coated with insulating materials outside the thicker metal thermo wires, prevents metal
Conducting wire copper and the short circuit of plain conductor constantan.
As the preferred technical solution of the present invention, the anti-skidding isolating shrinkable tube is close to the inner wall of metal coating shell, and
It does not fall off.
As the preferred technical solution of the present invention, the annular projection part of the metal coating shell and the ring of metal coating lid
Shape buckle can just block, and not fall off.
As the preferred technical solution of the present invention, the metal coating lid and cyclic annular buckle have elasticity.
Compared with prior art, the beneficial effects of the present invention are: the present invention is by designing a kind of filament thermocouple protection
Device covers metal coating lid when idle, so that sufficiently effective protection can be obtained in filament thermocouple measurement end, extend filament
The service life of thermocouple protects filament thermocouple measurement end not to be damaged；Metal coating lid is extracted when use, is directly grasped
It measures.Device is small and exquisite succinct, easy to operate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In Fig. 1: 1. plain conductor copper；2. plain conductor constantan；3. thicker metal thermo wires；4. anti-skidding isolating shrinkable tube；
5. metal coating shell；6. metal coating lid；7. annular projection part；8. ring-type buckle.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, Fig. 1 is the structural diagram of the present invention.
A kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is by two different plain conductors
Copper 1 is welded with plain conductor constantan 2, and plain conductor copper 1 and plain conductor constantan 2 are by one thicker metal thermo wires 3
It supports and overlaps.Anti-skidding isolating shrinkable tube 4, anti-skidding 4 outer cover of isolating shrinkable tube are cased with outside the thicker metal thermo wires 3
There is metal coating shell 5, the metal coating shell 5 is cased with metal coating lid 6, and 5 top of metal coating shell has annular projection
Part 7, the 7 lower part card of annular projection part have cyclic annular buckle 8.
Plain conductor copper 1, the plain conductor constantan 2 for intercepting 100 μm of two suitable length diameters, by plain conductor copper 1, gold
Belong to conducting wire constantan 2 and overlaps with the thicker metal thermo wires 3 for coating insulating materials and be tightly attached to thicker 3 side of metal thermo wires
On wall wall surface, plain conductor copper 1, so that it will not contact for the holding of plain conductor constantan 2 certain distance.
The thicker metal thermo wires 3 overlapped is put on into anti-skidding isolating shrinkable tube 4 and is packed tightly, metal coating shell 5 is inserted in, makes
Anti-skidding isolating shrinkable tube 4 is close to metal coating shell 5, and respectively reserves sufficient length in 5 upper and lower ends of metal coating shell, conveniently connects
The filament thermocouple welding operation got off.
Are carried out by electrolytic etching, and forms diameter and is less than for plain conductor copper 1,2 tip of plain conductor constantan under the microscope
50 μm and the fine tip that has sufficient length, welded after two nib contacts using electric spark, form thermoelectricity and couple
Point.So far, filament thermocouple completes.
When filament thermocouple is idle, metal coating lid 6 and metal coating shell 5 are buckled well, the ring-type of metal coating shell 5 is convex
Playing part 7 and the cyclic annular buckle 8 of metal coating lid 6 can just block, so that filament thermocouple can be obtained sufficiently when idle
It is effectively protected, extends the service life of thermocouple wire, filament thermocouple measurement end is protected not to be damaged.
In filament thermocouple needs in use, directly metal coating lid 6 is extracted and begun to use from metal coating shell 5,
It is easy to operate succinct.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of filament electric thermo-couple protector, including filament thermocouple, filament thermocouple is by two different plain conductor copper
(1) it is welded with plain conductor constantan (2), plain conductor copper (1) and plain conductor constantan (2) are by a metal thermo wires (3)
It supports and overlaps, it is characterised in that: the metal thermo wires (3), plain conductor copper (1) and plain conductor constantan (2) outer cover
Have anti-skidding isolating shrinkable tube (4), is cased with metal coating shell (5) outside the anti-skidding isolating shrinkable tube (4), the metal coating shell
(5) it is cased with metal coating lid (6), metal coating shell (5) top has annular projection part (7), the annular projection portion
(7) lower part card is divided to have cyclic annular buckle (8)；
The plain conductor copper (1) needs to weld under the microscope with plain conductor constantan (2)；
Metal thermo wires (3) diameter is not less than 0.3mm, has some strength；
It is coated with insulating materials outside the metal thermo wires (3), prevents plain conductor copper (1) and plain conductor constantan (2) short circuit；
Two suitable lengths, 100 μm of diameter of the plain conductor copper (1), the plain conductor constantan (2) are intercepted, it will be described
Plain conductor copper (1), the plain conductor constantan (2) and the metal thermo wires (3) for coating insulating materials overlap simultaneously
It is tightly attached on metal thermo wires (3) the side wall wall surface, the plain conductor copper (1), the plain conductor constantan (2) keep certain
So that it will not contact for distance；
The metal thermo wires (3) overlapped is put on into the anti-skidding isolating shrinkable tube (4) and is packed tightly, the metal coating is inserted in
Shell (5) is close to the anti-skidding isolating shrinkable tube (4) with the metal coating shell (5), and on the metal coating shell (5)
Lower both ends respectively reserve sufficient length, and next filament thermocouple welding is facilitated to operate；
Are carried out by electrolytic etching, and is formed for the plain conductor copper (1), plain conductor constantan (2) tip under the microscope
Fine tip of the diameter less than 50 μm, is welded after two nib contacts using electric spark, and thermal cross is formed, until
This, filament thermocouple completes.
2. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that: the anti-skidding isolating shrinkable tube
(4) it is close to the inner wall of metal coating shell (5), and does not fall off.
3. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that: the metal coating shell (5)
Annular projection part (7) and the cyclic annular buckle (8) of metal coating lid (6) can just block, do not fall off.
4. a kind of filament electric thermo-couple protector according to claim 1, it is characterised in that: the metal coating lid (6)
There is elasticity with ring-type buckle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611013892.4A CN106482854B (en) | 2016-11-18 | 2016-11-18 | A kind of filament electric thermo-couple protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611013892.4A CN106482854B (en) | 2016-11-18 | 2016-11-18 | A kind of filament electric thermo-couple protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106482854A CN106482854A (en) | 2017-03-08 |
| CN106482854B true CN106482854B (en) | 2019-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611013892.4A Expired - Fee Related CN106482854B (en) | 2016-11-18 | 2016-11-18 | A kind of filament electric thermo-couple protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106482854B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525366B (en) * | 2020-11-27 | 2023-03-14 | 中国航发四川燃气涡轮研究院 | Air suction type pluggable thermocouple probe for engine air inlet total temperature dynamic distortion test |
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| CN86105531A (en) * | 1986-07-26 | 1988-03-16 | 日本钢管株式会社 | The gas thermometer that is used for coke-oven chimney |
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| CN2783287Y (en) * | 2004-12-03 | 2006-05-24 | 韦成勋 | Protective cover for thermocouple |
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| CN101839774A (en) * | 2010-04-22 | 2010-09-22 | 北京航天计量测试技术研究所 | Composite tube type high-temperature thermocouple |
| CN201740605U (en) * | 2010-08-06 | 2011-02-09 | 武汉钢铁(集团)公司 | Wireless temperature measurement device |
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| CN106482854A (en) | 2017-03-08 |
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Granted publication date: 20190917 Termination date: 20201118 |