CN106644130A - Novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple - Google Patents
Novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple Download PDFInfo
- Publication number
- CN106644130A CN106644130A CN201510720689.XA CN201510720689A CN106644130A CN 106644130 A CN106644130 A CN 106644130A CN 201510720689 A CN201510720689 A CN 201510720689A CN 106644130 A CN106644130 A CN 106644130A
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- China
- Prior art keywords
- temperature
- resistant
- protection tube
- corrosion
- alarm
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Classifications
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- 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
Abstract
The invention provides a novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple. The novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple comprises a protection tube, a flange, a housing, a temperature-sensitive sensor, a protection layer and an alarm, wherein the protection tube is connected with the housing through the flange, the protection tube is a silicon nitride protection tube, the inner side of the protection tube is provided with the temperature-sensitive sensor, and the outer side of the protection tube is wrapped by the protection layer. When the thermal couple is installed on a hot-blast stove pipeline for temperature measurement, the thermal couple is not fractured due to influences of crosswinds and air leak, at the same time, corrosion gas and complex gas are isolated from a precious metal material in the pipeline, the precious metal material is prevented from a fracture due to a chemical reaction, the service life of the thermal couple is prolonged, the price of the material is low, and the cost is decreased accordingly. According to the invention, the inner side of the protection tube is provided with the temperature-sensitive sensor, when a protection membrane and the protection tube at the outer side are damaged, the internal temperature-sensitive sensor receives an external high temperature and transmits information to the external alarm, and the alarm gives an alarm so as to prompt the work personnel.
Description
Technical field
The present invention relates to thermal measurement arts, more particularly to a kind of novel fire resistant, corrosion-resistant special electric thermo-couple.
Background technology
At present there are many kinds of thermocouples the country, general to require that higher occasion all adopts corundum and carborundum as the material of protection pipe.But it is all very short to be used in the thermocouple service life of thermometric in pipeline of hot air furnace; common thermocouple is using corundum or carborundum as protection pipe material; when pipeline of hot air furnace temperature is measured; due to there is crosswind and pipeline air leakage phenomena in pipeline; along with the toughness of alundum tube it is not good enough, therefore single-phase pressurized and leaked out to cause and easily rupture in temperature difference.The gas and etchant gas of some complicated components are there is in pipeline of hot air furnace; mainly sulfur dioxide; due to corundum and carborundum protection pipe poor air-tightness; gas is caused to make the gas produced in precious metal and smelting process that chemical reaction occurs into protecting tube and brittle failure; cause the necessary integral replacing of thermocouple, it is relatively costly.
The content of the invention
According to above technical problem; the present invention provides a kind of novel fire resistant, corrosion-resistant special electric thermo-couple; including protection pipe, flange, shell; temperature sensing sensor, protective layer, alarm are characterized by further comprising, the protection pipe is connected by flange with shell, the protection pipe is for silicon nitride protection pipe; the protection pipe inner side is provided with temperature sensing sensor; the protection pipe outside parcel matcoveredn, the temperature sensing sensor and alarm connect, and the alarm is located at outside.
The protective layer is high temperature resistant, corrosion-resistant protective layer.
The silicon nitride protection pipe is made up of atomic crystal silicon nitride.
Beneficial effects of the present invention are：The present invention measures the temperature in pipeline of hot air furnace using silicon nitride protection pipe, and silicon nitride is high grade refractory, and it is a kind of superhard material, itself has lubricity, wear-resistant, toughness strong, is atomic crystal；It is anti-oxidant during high temperature；There is no chemical reaction with most of acid, corrosion resistance is strong.Simultaneously silicon nitride can also resist thermal shock, can be heated to more than 1000 DEG C in atmosphere, quick refrigeration drastically heat again also will not fragmentation, silicon nitride density is high, sealing is strong, can prevent the intrusion of corrosive gas.Will not rupture because of crosswind and the impact leaked out when being installed in being carried out on pipeline of hot air furnace thermometric, etchant gas and complicated gas are isolated with the precious metal material in pipeline simultaneously, avoid precious metal material brittle failure because of chemical reaction, improve the service life of thermocouple, and material price is cheap, and then reduce cost.The protection pipe inner side of the present invention is provided with temperature sensing sensor, and when the diaphragm and protection pipe in outside are all damaged, internal temperature sensing sensor can receive the high temperature of outside and pass information to the alarm of outside, and alarm sends alarm and staff is reminded.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is protection pipe sectional view.
As schemed, protection pipe -1, flange -2, shell -3, temperature sensing sensor -4, protective layer -5, alarm -6.
Specific embodiment
As illustrated, being further described to the present invention：
The present invention provides a kind of novel fire resistant, corrosion-resistant special electric thermo-couple; including protection pipe 1, flange 2, shell 3, temperature sensing sensor 4, protective layer 5, alarm 6; protection pipe 1 is connected by flange 2 with shell 3; protection pipe 1 is for silicon nitride protection pipe 1; the inner side of protection pipe 1 is provided with temperature sensing sensor 4; the outside of protection pipe 1 parcel matcoveredn 5, temperature sensing sensor 4 and alarm 6 connect, and alarm 6 is located at outside.Protective layer 5 is high temperature resistant, corrosion-resistant protective layer 5.Silicon nitride protection pipe 1 is made up of atomic crystal silicon nitride.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of novel fire resistant, corrosion-resistant special electric thermo-couple; including protection pipe, flange, shell; characterized by further comprising temperature sensing sensor, protective layer, alarm; the protection pipe is connected by flange with shell; the protection pipe is that for silicon nitride protection pipe, the protection pipe inner side is provided with temperature sensing sensor, the protection pipe outside parcel matcoveredn; the temperature sensing sensor and alarm connect, and the alarm is located at outside.
2. according to a kind of novel fire resistant described in claim 1, corrosion-resistant special electric thermo-couple, it is characterised in that the protective layer is high temperature resistant, corrosion-resistant protective layer.
3. according to a kind of novel fire resistant described in claim 1, corrosion-resistant special electric thermo-couple, it is characterised in that the silicon nitride protection pipe is made up of atomic crystal silicon nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510720689.XA CN106644130A (en) | 2015-10-30 | 2015-10-30 | Novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510720689.XA CN106644130A (en) | 2015-10-30 | 2015-10-30 | Novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106644130A true CN106644130A (en) | 2017-05-10 |
Family
ID=58830940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510720689.XA Pending CN106644130A (en) | 2015-10-30 | 2015-10-30 | Novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644130A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839210A (en) * | 2019-03-14 | 2019-06-04 | 天津中德应用技术大学 | A kind of anticorrosive temperature sensor and preparation method thereof applied to ultrasonic flowmeter |
| CN113008399A (en) * | 2021-01-26 | 2021-06-22 | 松诺盟科技有限公司 | High-temperature corrosion-resistant thermocouple and processing method thereof |
| US20210310884A1 (en) * | 2018-05-16 | 2021-10-07 | Ab Sandvik Materials Technology | Metallic tube structure with a sensor arrangement |
| WO2021237470A1 (en) * | 2020-05-26 | 2021-12-02 | 王煜 | Thermocouple sensor with long service life |
-
2015
- 2015-10-30 CN CN201510720689.XA patent/CN106644130A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210310884A1 (en) * | 2018-05-16 | 2021-10-07 | Ab Sandvik Materials Technology | Metallic tube structure with a sensor arrangement |
| US11953388B2 (en) * | 2018-05-16 | 2024-04-09 | Alleima Tube Ab | Metallic tube structure with a sensor arrangement |
| CN109839210A (en) * | 2019-03-14 | 2019-06-04 | 天津中德应用技术大学 | A kind of anticorrosive temperature sensor and preparation method thereof applied to ultrasonic flowmeter |
| WO2021237470A1 (en) * | 2020-05-26 | 2021-12-02 | 王煜 | Thermocouple sensor with long service life |
| CN113008399A (en) * | 2021-01-26 | 2021-06-22 | 松诺盟科技有限公司 | High-temperature corrosion-resistant thermocouple and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |