CN105784163A - High-temperature thermocouple - Google Patents
High-temperature thermocouple Download PDFInfo
- Publication number
- CN105784163A CN105784163A CN201610136518.7A CN201610136518A CN105784163A CN 105784163 A CN105784163 A CN 105784163A CN 201610136518 A CN201610136518 A CN 201610136518A CN 105784163 A CN105784163 A CN 105784163A
- Authority
- CN
- China
- Prior art keywords
- metal tube
- protection tube
- platinum
- silicon carbide
- carborundum
- 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.)
- Pending
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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
-
- 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
- G01K1/12—Protective devices, e.g. casings for preventing damage due to heat overloading
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention, which belongs to the technical of the machinery, relates to a high-temperature thermocouple that is especially suitable for a hot blast heater. An inner ceramic protection tube is arranged in a silicon carbide outer protection tube; an inner insulation core is arranged inside the inner ceramic protection tube; and a platinum-rhodium filament positive electrode and a platinum-rhodium filament negative electrode are arranged inside the inner insulation core. A metal tube sleeves the outer side of the silicon carbide outer protection tube; and a sealed cavity is arranged between the metal tube and the silicon carbide outer protection tube. A material injection hole is formed in the metal tube; and high-temperature cement is injected into the sealed cavity through the material injection hole. The high-temperature thermocouple has the following beneficial effects: the silicon carbide protection tube and the inner ceramic protection tube are arranged, the inner insulation core is arranged inside the inner ceramic protection tube, the metal tube is arrange at the outer side of the silicon carbide protection tube, and the high-temperature cement is arranged between the metal tube and the silicon carbide outer protection tube, so that the metal tube and the silicon carbide outer protection tube can be fixed effectively and the structural strength is enhanced. Moreover, the high-temperature thermocouple has advantages of simple structure, convenient operation, and low cost.
Description
Technical field:
The present invention relates to a kind of pyrometer couple, be particularly suited for air stove, belong to field of mechanical technique.
Background technology:
Air stove is one of mainly supporting equipment of Iron Works, and the effect of air stove is the high-temperature hot-air for the continual offer of blast furnace more than 1000 DEG C.The hot blast temperature that blast furnace ironmaking is sent into blast furnace for air stove has strict requirement, from the pathogenic wind-warm about 150 DEG C-200 DEG C that aerator comes, pathogenic wind-warm through air stove can be higher than 1300 DEG C, and the hot blast temperature needed for blast furnace is about 1000 DEG C-1250 DEG C, and must temperature stabilization.So under guaranteeing system safety operation situation, wind pushing temperature is maintained at 1000 DEG C, and big fluctuation can not occurs.And the high temperature thermocouple for air stove of domestic manufacturer's exploitation at present is mainly with common carborundum as outside protective pipe, can be not high due to its compactness after this product two wheat harvesting period, there is pore, intensity is not high causes platinum-rhodium wire to be corroded, temperature drift, Product Precision is bad, temperature has fluctuation also easy to crack, the sealing that additionally product is overall is not as, platinum-rhodium wire is caused to be corroded, additionally existing product also has very big hidden danger in safety, product outside protective pipe lost efficacy after disconnecting, high temperature, inflammable, explosion hazard gases directly leaks out from instrument, so industry needs a kind of novel pyrometer couple, to solve problems faced in industry.
Summary of the invention:
The technical problem to be solved is: provide a kind of pyrometer couple, to solve problems faced in industry.
In order to solve above-mentioned technical problem; the present invention is achieved by the following technical solutions: a kind of pyrometer couple; it is provided with carborundum outside protective pipe, is provided with interior ceramic protecting pipe in described carborundum outside protective pipe, in described interior ceramic protecting pipe, is provided with interior insulating core.
Being provided with platinum-rhodium wire positive pole and platinum-rhodium wire negative pole in described interior insulating core, the outside of described carborundum outside protective pipe is also socketed with metal tube.
Being provided with closed chamber between described metal tube and carborundum outside protective pipe, described metal tube is provided with material hole, described material hole is connected to closed chamber.
Being filled with high-temperature cement by material hole in described closed chamber, the front end of described metal tube is provided with connection screw thread, and described connection screw thread is provided with joint.
Being provided with connecting sleeve in described joint, the outside of described connecting sleeve is additionally provided with pipe joint, and the right-hand member of described pipe joint is provided with hot line block, and the right-hand member of described hot line block is provided with rosette.
As preferably, described metal tube being provided with adpting flange, described adpting flange is provided with connecting hole.
As preferably, described platinum-rhodium wire positive pole and described platinum-rhodium wire negative pole are connected in described rosette.
As preferably, described material hole being provided with plug screw.
Compared with prior art; usefulness of the present invention is: be provided with carborundum protection set and interior ceramic protective sleeve; it is provided with interior insulating core in described interior ceramic protective sleeve; the arranged outside of carborundum protection set has metal tube, protects at metal tube and carborundum and is provided with high-temperature cement between set, thus effectively fixing metal tube and carborundum protection set; and add structural strength; present configuration is simple, easy to operate, less costly.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is A place zoomed-in view.
In figure: 1, carborundum outside protective pipe；2, interior ceramic protecting pipe；3, interior insulating core；4, platinum-rhodium wire positive pole；5, platinum-rhodium wire negative pole；6, metal tube；7, closed chamber；8, material hole；9, rosette；10, high-temperature cement；11, joint；12, connecting sleeve；13, pipe joint；14, hot line block；15, adpting flange；16, connecting hole.
Detailed description of the invention:
Describe the present invention below in conjunction with the drawings and the specific embodiments: a kind of pyrometer couple according to Fig. 1 and Fig. 2, be provided with carborundum outside protective pipe 1, in described carborundum outside protective pipe 1, be provided with interior ceramic protecting pipe 2.
Interior insulating core 3 it is provided with in described interior ceramic protecting pipe 2; platinum-rhodium wire positive pole 4 and platinum-rhodium wire negative pole 5 it is provided with in described interior insulating core 3; the outside of described carborundum outside protective pipe 1 is also socketed with metal tube 6, is provided with closed chamber 7 between described metal tube 6 and carborundum outside protective pipe 1.
Being provided with material hole 8 on described metal tube 6, described material hole 8 is connected to closed chamber 7, is filled with high-temperature cement 10 by material hole 8 in described closed chamber 7.
The front end of described metal tube 6 is provided with connection screw thread, described connection screw thread is provided with joint 11, is provided with connecting sleeve 12 in described joint 11.
The outside of described connecting sleeve 12 is additionally provided with pipe joint 13, the right-hand member of described pipe joint 13 is provided with hot line block 14, the right-hand member of described hot line block 14 is provided with rosette 9, described metal tube 6 is provided with adpting flange 15, described adpting flange 15 is provided with connecting hole 16, described platinum-rhodium wire positive pole 4 and described platinum-rhodium wire negative pole 5 are connected in described rosette 9, and described material hole 8 is provided with plug screw.
In use, it is provided with carborundum outside protective pipe 1, described carborundum outside protective pipe 1 is provided with interior ceramic protecting pipe 2, it is provided with interior insulating core 3 in described interior ceramic protecting pipe 2, platinum-rhodium wire positive pole 4 and platinum-rhodium wire negative pole 5 it is provided with in interior insulating core 3, arranged outside at carborundum outside protective pipe 1 has metal tube 6, high-temperature cement 10 it is provided with between metal tube 6 and carborundum outside protective pipe 1, by high-temperature cement 10, metal tube 6 and carborundum outside protective pipe 1 are fixed together closely, ensure that the intensity of carborundum outside protective pipe 1, it is provided by connecting sleeve 12, after effectively preventing product failure, the leakage of inflammable and explosive gas.It is emphasized that: be only presently preferred embodiments of the present invention above, not the present invention is done any pro forma restriction, every any simple modification, equivalent variations and modification above example made according to the technical spirit of the present invention, all still falls within the scope of technical solution of the present invention.
Claims (4)
- null1. a pyrometer couple，It is characterized in that: be provided with carborundum outside protective pipe (1)，Described carborundum outside protective pipe (1) is inner is provided with interior ceramic protecting pipe (2)，Described interior ceramic protecting pipe (2) is inner is provided with interior insulating core (3)，Described interior insulating core (3) is inner is provided with platinum-rhodium wire positive pole (4) and platinum-rhodium wire negative pole (5)，The outside of described carborundum outside protective pipe (1) is also socketed with metal tube (6)，Closed chamber (7) it is provided with between described metal tube (6) and carborundum outside protective pipe (1)，Described metal tube (6) is provided with material hole (8)，Described material hole (8) is connected to closed chamber (7)，It is filled with high-temperature cement (10) to described closed chamber (7) is inner by material hole (8)，The front end of described metal tube (6) is provided with connection screw thread，Described connection screw thread is provided with joint (11)，Described joint (11) is inner is provided with connecting sleeve (12)，The outside of described connecting sleeve (12) is additionally provided with pipe joint (13)，The right-hand member of described pipe joint (13) is provided with hot line block (14)，The right-hand member of described hot line block (14) is provided with rosette (9).
- 2. pyrometer couple according to claim 1, it is characterised in that: described metal tube (6) is provided with adpting flange (15), described adpting flange (15) is provided with connecting hole (16).
- 3. pyrometer couple according to claim 1, it is characterised in that: it is inner that described platinum-rhodium wire positive pole (4) and described platinum-rhodium wire negative pole (5) are connected to described rosette (9).
- 4. pyrometer couple according to claim 1, it is characterised in that: described material hole is provided with plug screw on (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136518.7A CN105784163A (en) | 2016-03-10 | 2016-03-10 | High-temperature thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136518.7A CN105784163A (en) | 2016-03-10 | 2016-03-10 | High-temperature thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105784163A true CN105784163A (en) | 2016-07-20 |
Family
ID=56387614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610136518.7A Pending CN105784163A (en) | 2016-03-10 | 2016-03-10 | High-temperature thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105784163A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271069A (en) * | 2017-07-10 | 2017-10-20 | 安徽徽宁电器仪表集团有限公司 | A kind of Multi-section temperature-measuring formula thermocouple |
| CN107764421A (en) * | 2017-09-30 | 2018-03-06 | 承德兴春和农业集团股份有限公司 | Temperature probe and its method for packing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1360353A (en) * | 1972-01-19 | 1974-07-17 | Atomic Energy Authority Uk | Method of making thermocouples |
| JPS58127135A (en) * | 1982-01-23 | 1983-07-28 | Shozo Asano | Consumed type immersed thermocouple |
| JP3792165B2 (en) * | 2002-02-26 | 2006-07-05 | 林電工株式会社 | Thermocouple wafer sensor |
| CN201844889U (en) * | 2010-11-12 | 2011-05-25 | 浙江伦特机电有限公司 | Temperature sensor for high-temperature and low-temperature measurement of hearth |
| CN201955161U (en) * | 2011-03-09 | 2011-08-31 | 天津市中环温度仪表有限公司 | Special thermocouple for length-adjustable type gasifying furnace |
| CN202471281U (en) * | 2012-03-29 | 2012-10-03 | 淄博益源工程技术有限公司 | High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery |
-
2016
- 2016-03-10 CN CN201610136518.7A patent/CN105784163A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1360353A (en) * | 1972-01-19 | 1974-07-17 | Atomic Energy Authority Uk | Method of making thermocouples |
| JPS58127135A (en) * | 1982-01-23 | 1983-07-28 | Shozo Asano | Consumed type immersed thermocouple |
| JP3792165B2 (en) * | 2002-02-26 | 2006-07-05 | 林電工株式会社 | Thermocouple wafer sensor |
| CN201844889U (en) * | 2010-11-12 | 2011-05-25 | 浙江伦特机电有限公司 | Temperature sensor for high-temperature and low-temperature measurement of hearth |
| CN201955161U (en) * | 2011-03-09 | 2011-08-31 | 天津市中环温度仪表有限公司 | Special thermocouple for length-adjustable type gasifying furnace |
| CN202471281U (en) * | 2012-03-29 | 2012-10-03 | 淄博益源工程技术有限公司 | High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271069A (en) * | 2017-07-10 | 2017-10-20 | 安徽徽宁电器仪表集团有限公司 | A kind of Multi-section temperature-measuring formula thermocouple |
| CN107764421A (en) * | 2017-09-30 | 2018-03-06 | 承德兴春和农业集团股份有限公司 | Temperature probe and its method for packing |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |