CN208635932U - A kind of thermocouple of armored structure - Google Patents
A kind of thermocouple of armored structure Download PDFInfo
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- CN208635932U CN208635932U CN201821314169.4U CN201821314169U CN208635932U CN 208635932 U CN208635932 U CN 208635932U CN 201821314169 U CN201821314169 U CN 201821314169U CN 208635932 U CN208635932 U CN 208635932U
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- thermocouple
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- filled
- insulation tube
- ceramic
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Abstract
The utility model discloses a kind of thermocouples of armored structure, including thermocouple body, even core and ceramic temperature insulation tube, end is fixed with flange at the thermocouple body hot end, end is fixed with terminal box at thermocouple body cold end, the idol core is arranged in thermocouple body, outer layer is fixed with ceramic interior protection pipe at even core hot end, constituting between ceramic interior protection pipe and even core has the first filled layer, magnesium oxide powder is filled in first filled layer, ceramic interior protection pipe outer layer is fixed with metal outside protective pipe, the ceramics temperature insulation tube is fixed on even core cold end outer layer, the ceramics temperature insulation tube includes inner and outer tubes, constituting between inner and outer tubes has thermal insulating cavity, constituting between the ceramics temperature insulation tube and even core has the second filled layer, magnesium oxide powder is filled in second filled layer.The utility model has the advantages that high temperature resistant, wear-resisting long service life and the accuracy to completely cut off external temperature at cold end, improving measurement.
Description
Technical field
The utility model relates to temperature-measuring element technical field, specially a kind of thermocouple of armored structure.
Background technique
Thermocouple is common temperature element in temperature measuring instrument, it directly measures temperature, and temperature signal is converted
At thermo-electromotive force signal, the temperature of measured medium is converted by electric meter (secondary meter).The shape of various thermocouples is normal
It is far from it because of needs, but their basic structure is roughly the same, usually by thermode, insulation sleeve protection pipe and wiring
The major parts such as box composition, usually matches with display instrument, recording apparatus and electronic controller.
Armoured thermocouple used in existing Industrial Measurement temperature is mainly made of protection pipe, even core and magnesia bisque, this
Kind of thermocouple armoured thermocouple diameter is small, and the wall thickness of protection pipe is very thin, results in thermocouple heat resistance difference and not wear-resisting in this way,
Service life is short, be easy to cause the error of thermometric, and cold end does not have heat isolating structure, is easy at cold end by external temperature shadow
It rings, will affect the accuracy seriously measured.
Utility model content
The purpose of this utility model is to provide a kind of thermocouple of armored structure, have that high temperature resistant is again wear-resisting to use the longevity
It long advantage is ordered, cold end is solved and does not have heat isolating structure, is easy at cold end by extraneous thermal effect, will affect and seriously measure
The shortcomings that accuracy.
To achieve the above object, the utility model provides the following technical solutions: a kind of thermocouple of armored structure, including
Thermocouple body, even core and ceramic temperature insulation tube, end is fixed with flange, thermocouple body cold end at the thermocouple body hot end
Place end is fixed with terminal box, and the idol core is arranged in thermocouple body, and outer layer is fixed with protection in ceramics at even core hot end
Pipe, ceramic interior protection pipe outer layer are fixed with metal outside protective pipe, and the ceramics temperature insulation tube is fixed on even core cold end outer layer.
Preferably, constituting between the ceramic interior protection pipe and even core has the first filled layer, is filled in the first filled layer
Magnesium oxide powder.
Preferably, the ceramic temperature insulation tube includes inner and outer tubes, and constituting between inner and outer tubes has thermal insulating cavity.
Preferably, constituting between the ceramic temperature insulation tube and even core has the second filled layer, and filling is aerobic in the second filled layer
Change magnesium dust.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model has reached enhancing thermocouple by the cooperation of setting metal outside protective pipe and ceramic interior protection pipe
Hardness wearability and heat-resisting quantity effect, armoured thermocouple used in existing Industrial Measurement temperature is mainly by protection pipe, idol
Core and magnesia bisque are constituted, and this thermocouple armoured thermocouple diameter is small, and the wall thickness of protection pipe is very thin, results in thermoelectricity in this way
Even heat resistance is poor and not wear-resisting, and service life is short, be easy to cause the error of thermometric, and ceramic interior protection pipe is located at even core hot end
Outer layer, the material of ceramics itself has very strong high temperature resistance, and ceramic interior protection pipe does not contact directly with even core, can
Enhance the high temperature resistance of thermocouple, metal outside protective pipe is located at the outer layer of ceramic interior protection pipe, can protect protection in ceramics
Pipe prevents fragmentation, while can enhance the hardness and wear-resisting property of thermocouple body, and the service life of thermocouple can be made to increase,
Reduce the error rate that measurement occurs.
2, the utility model has been achieved the effect that by the way that ceramic temperature insulation tube is arranged to completely cut off external temperature, cold end at cold end
Without heat isolating structure, it is easy to will affect the accuracy seriously measured by extraneous thermal effect at cold end, ceramic temperature insulation tube
The thermal insulating cavity formed between inner tube outer tube is cavity structure, is vacuum state in thermal insulating cavity, can effectively completely cut off external temperature
Degree, prevents extraneous thermal effect to cold end, prevents cold junction temperature from changing, can effectively improve the accuracy of measurement.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is cross-sectional structure schematic diagram at the hot end of the utility model；
Fig. 3 is structural schematic diagram at the cold end of the utility model.
In figure: 1, thermocouple body；2, metal outside protective pipe；3, even core；4, ceramic temperature insulation tube；5, terminal box；6, thermal insulation
Chamber；7, flange；8, ceramic interior protection pipe；9, the first filled layer；10, the second filled layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after
The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition,
Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
It please refers to Fig.1 to Fig.3, a kind of embodiment provided by the utility model: a kind of thermocouple of armored structure, including
Thermocouple body 1, even core 3 and ceramic temperature insulation tube 4, end is fixed with flange 7 at 1 hot end of thermocouple body, and flange 7 is thermocouple
The mounting structure of ontology 1, end is fixed with terminal box 5 at 1 cold end of thermocouple body, and even core 3 is arranged in thermocouple body 1,
Outer layer is fixed with ceramic interior protection pipe 8 at even 3 hot end of core, and constituting between ceramic interior protection pipe 8 and even core 3 has the first filled layer 9,
It is filled with magnesium oxide powder in first filled layer 9, ceramic 8 outer layer of interior protection pipe is fixed with metal outside protective pipe 2, passes through setting gold
The cooperation for belonging to outside protective pipe 2 and ceramic interior protection pipe 8 has reached the hardness wearability of enhancing thermocouple and the effect of heat-resisting quantity
Fruit, armoured thermocouple used in existing Industrial Measurement temperature are mainly made of protection pipe, even core and magnesia bisque, this thermoelectricity
Even armoured thermocouple diameter is small, and the wall thickness of protection pipe is very thin, results in thermocouple heat resistance difference and not wear-resisting in this way, uses the longevity
It orders short, be easy to cause the error of thermometric, ceramic interior protection pipe 8 is located at outer layer at 3 hot end of even core, and the material of ceramics itself has very
Strong high temperature resistance, and ceramic interior protection pipe 8 does not contact directly with even core 3, can enhance the high temperature resistance of thermocouple,
Metal outside protective pipe 2 is located at the outer layer of ceramic interior protection pipe 8, ceramic interior protection pipe 8 can be protected to prevent fragmentation, while can increase
The hardness and wear-resisting property of strong thermocouple body 1, can be such that the service life of thermocouple increases, and reduce the error that measurement occurs
Rate.
Ceramic temperature insulation tube 4 is fixed on even 3 cold end outer layer of core, and ceramic temperature insulation tube 4 includes inner and outer tubes, inner and outer tubes
Between constitute and have a thermal insulating cavity 6, constituting between ceramic temperature insulation tube 4 and even core 3 has the second filled layer 10, filling in the second filled layer 10
There is magnesium oxide powder, magnesium oxide powder has the performance of fire-proof and thermal-insulation, by the way that ceramic temperature insulation tube 4 is arranged, has reached at cold end
Completely cut off the effect of external temperature, cold end does not have heat isolating structure, is easy to will affect serious survey by extraneous thermal effect at cold end
The accuracy of amount, the thermal insulating cavity 6 formed between the inner tube outer tube of ceramic temperature insulation tube 4 are cavity structure, are vacuum shape in thermal insulating cavity 6
State can effectively completely cut off external temperature, prevent extraneous thermal effect to cold end, prevent cold junction temperature from changing, can be effective
Raising measurement accuracy.
Working principle: in the utility model use process, installation thermocouple, protection in ceramics are fixed by flange 7
Pipe 8 is located at outer layer at 3 hot end of even core, and the material of ceramics itself has very strong high temperature resistance, and ceramic interior protection pipe 8 is not
It is directly contacted with even core 3, the high temperature resistance of thermocouple can be enhanced, metal outside protective pipe 2 is located at the outer of ceramic interior protection pipe 8
Layer, can protect ceramic interior protection pipe 8 to prevent fragmentation, while can enhance the hardness and wear-resisting property of thermocouple body 1, ceramics
The thermal insulating cavity 6 formed between the inner tube outer tube of temperature insulation tube 4 is cavity structure, is vacuum state in thermal insulating cavity 6, can effectively every
External temperature absolutely prevents extraneous thermal effect to cold end, wherein the first filled layer 9 and the second filled layer 10 have heat-insulated effect
Fruit.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (4)
1. a kind of thermocouple of armored structure, including thermocouple body (1), even core (3) and ceramic temperature insulation tube (4), feature
Be: end is fixed with flange (7) at thermocouple body (1) hot end, and end, which is fixed with, at thermocouple body (1) cold end connects
Wire box (5), the idol core (3) are arranged in thermocouple body (1), and outer layer is fixed with ceramic interior protection pipe at even core (3) hot end
(8), ceramic interior protection pipe (8) outer layer is fixed with metal outside protective pipe (2), and it is cold that the ceramics temperature insulation tube (4) is fixed on even core (3)
Hold outer layer.
2. a kind of thermocouple of armored structure according to claim 1, it is characterised in that: the ceramics interior protection pipe
(8) constituting between even core (3) has the first filled layer (9), and magnesium oxide powder is filled in the first filled layer (9).
3. a kind of thermocouple of armored structure according to claim 1, it is characterised in that: the ceramics temperature insulation tube (4)
It include inner and outer tubes, constituting between inner and outer tubes has thermal insulating cavity (6).
4. a kind of thermocouple of armored structure according to claim 1, it is characterised in that: the ceramics temperature insulation tube (4)
Constituting between even core (3) has the second filled layer (10), and magnesium oxide powder is filled in the second filled layer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821314169.4U CN208635932U (en) | 2018-08-15 | 2018-08-15 | A kind of thermocouple of armored structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821314169.4U CN208635932U (en) | 2018-08-15 | 2018-08-15 | A kind of thermocouple of armored structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635932U true CN208635932U (en) | 2019-03-22 |
Family
ID=65742418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821314169.4U Expired - Fee Related CN208635932U (en) | 2018-08-15 | 2018-08-15 | A kind of thermocouple of armored structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208635932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959460A (en) * | 2019-04-23 | 2019-07-02 | 安徽天康(集团)股份有限公司 | A kind of carbon element factory's quirk special electric thermo-couple |
| CN110582131A (en) * | 2019-09-20 | 2019-12-17 | 江苏欧展科技有限公司 | Electric heating element for preparing solar thin-film battery |
-
2018
- 2018-08-15 CN CN201821314169.4U patent/CN208635932U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959460A (en) * | 2019-04-23 | 2019-07-02 | 安徽天康(集团)股份有限公司 | A kind of carbon element factory's quirk special electric thermo-couple |
| CN110582131A (en) * | 2019-09-20 | 2019-12-17 | 江苏欧展科技有限公司 | Electric heating element for preparing solar thin-film battery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20210815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |