CN101067574A - Thermo detector for continuous measuring high-temperature copper liquid temperature - Google Patents
Thermo detector for continuous measuring high-temperature copper liquid temperature Download PDFInfo
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- CN101067574A CN101067574A CN 200710023543 CN200710023543A CN101067574A CN 101067574 A CN101067574 A CN 101067574A CN 200710023543 CN200710023543 CN 200710023543 CN 200710023543 A CN200710023543 A CN 200710023543A CN 101067574 A CN101067574 A CN 101067574A
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Abstract
The invention relates to a temperature measuring installment of continuing measure high temperature copper fluid temperature, specially the temperature measuring installment of continuing measure high temperature copper fluid temperature in the in the copper alloy cast process, which is composed by the down protecting tube 3 close cover on the up protecting tube 5, the down protecting tube 3 plunge in the copper fluid 12, the thermo-element 1 is located in the up protecting tube, the thermo-element soldering terminal 13 is located in the protecting tube 3, the nichrome wire 10 of thermo-element 1 and the nickel silicon silk 11 separately puts on the porcelain bushing 2, fill asbestos yarn 6 between up protecting tube 5 inside and the thermo-element 1, the thermo-element soldering terminal 13 sets into protecting tube 3 of packing mix magnesia 4, the thermo-element free electricity 14 uses the fixed porcelain tube 7 to fix to the up protecting tube 5, the nichrome wires 10 of thermo-element free electricity 14 and the nickel silicon silk 11 uses the compensate wire 8 separately meet on the intelligent measuring appliance 9 cathodes. The merits of the equipment are that structure simple, price inexpensive, service life long, can continually measure the copper fluid temperature, measure warm accurate, the high precision.
Description
Affiliated technical field
The present invention relates to a kind of temperature measuring equipment of continuous measuring high-temperature copper liquid temperature, particularly the temperature measuring equipment of continuous coverage copper liquid temperature in the continuously casting copper alloy process.
Background technology
In aldary continuous casting process, copper liquid temperature is a very important technical parameters.The height of copper liquid temperature is not only the key factor of decision casting bar quality, also affects height, the length in electric furnace life-span of product tonnage power consumption simultaneously, has influenced production cost.Therefore must adopt the copper liquid temperature robot control system(RCS), the temperature of aldary in the continuous casting process carried out continuous and continual measurement and adjustment automatically, relatively stable to guarantee copper liquid temperature, and temperature measuring equipment is the critical component in the copper liquid temperature robot control system(RCS) in the casting process.For a long time, internal copper processing enterprise had once adopted different temp measuring methods repeatedly to test and had groped, and minority enterprise adopts leucoscope and contact temperature-measuring or expendable thermometric, does not meet current conditions; Some enterprise adopts metal coating sleeve pipe and nonmetal protective casing such as quartzy refractory ceramics; corundum; the temperature measuring equipment of material such as silit; but because metal coating sleeve pipe non-refractory; not anticorrosive; though but not the metal coating sleeve pipe is high temperature resistant; anticorrosive; but physical strength is not high; thermal shock resistance is relatively poor; the temperature measuring equipment of made all is not suitable for being used for the medium-term and long-term thermometric of high-temperature copper liquid of 1100 ℃～1280 ℃ on line-frequency induction continuous casting electric furnace; therefore at present domesticly in the research of high-temperature copper liquid continuous temperature measurement device, make little progress; detection level is so far still with range estimation; by experiential operating is main, to automatic control, regulates and does not then know where to begin.
Summary of the invention
The object of the invention provides that a kind of temperature-measuring range is wide, thermometric accurately, Stability Analysis of Structures, not fragile, the temperature measuring equipment of the continuous measuring high-temperature copper liquid temperature that cost is low.
Technical scheme of the present invention is: be used for the last protection tube of the temperature measuring equipment of continuous measuring high-temperature copper liquid temperature by the copper tube material; the following protection tube of graphite-pipe material; nickel chromium-nickel silicon thermocouple; asbestos rope; mix magnesia; porcelain bushing shell; fixing porcelain tube; compensating wire and intelligence instrument are formed; following protection tube closely is placed on the protection tube; following protection tube immerses in the copper liquid; thermopair places protection tube inside; its welding end is positioned at protection tube down; and the welding end that makes thermopair stretches out upward protection pipe end port one segment length of joining with following protection tube; should make thermopair welding end distance be not less than 30 millimeters in the protection tube bottom down simultaneously; the nickel filament of thermopair and nisiloy silk are put on some porcelain bushing shells from top to bottom successively; filled stone cotton cord between last protection tube inboard and the thermopair; fill in the following protection tube and mix magnesia; make the thermopair welding end fix and be embedded in middle the mixing in the magnesia; and placed copper liquid surface sintering 5～10 minutes; free-ended nickel filament of thermopair and nisiloy silk are fixed in the protection tube other end with fixing porcelain tube; with compensating wire the free-ended nickel filament of thermopair is linked to each other with the both positive and negative polarity of intelligence instrument respectively with the nisiloy silk then; place copper liquid after 10 minutes protection tube bottom under this device, the temperature that thermoelectric effect that can be by thermopair is accurately read certain depth copper liquid in the stove from the intelligence instrument.
The present invention has the following advantages:
(1) simple in structure, durable, make easily;
(2) thermometric is accurate, and error is within ± 5 ℃.
(3) temperature-measuring range is wide, but the people is from 0 ℃～1280 ℃;
(4) long service life, can be in copper liquid continuous temperature measurement more than month;
(5) temperature measuring equipment shock resistance and anti-sootiness, dust disturb extremely strong, have therefore guaranteed the precision of thermometric;
(6) composition material is common, and price is quite cheap.
This device can solve the key technical problem of present line-frequency induction melting furnace thermometric robot control system(RCS), and production run is carried out accurate instruction, guarantees product quality, improves electric furnace output, cuts down the consumption of energy, and prolongs furnace life, improves the production economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among Fig. 1, thermopair 1, porcelain bushing shell 2, following protection tube 3 mixes magnesia 4, last protection tube 5, asbestos rope 6, fixedly porcelain tube 7, compensating wire 8, intelligence instrument 9, nickel filament 10, nisiloy silk 11, copper liquid 12, thermopair welding end 13, thermopair free end 14.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
The temperature measuring equipment of a kind of continuous measuring high-temperature copper liquid temperature shown in Figure 1; by protection tube 5 on the copper tube of external diameter Φ 17mm; protection tube 3 under the graphite-pipe of internal diameter Φ 17mm; nickel chromium-nickel silicon thermocouple 1; porcelain bushing shell 2; mix magnesia 4; asbestos rope 6; fixedly porcelain tube 7; compensating wire 8; intelligence instrument 9 is formed; porcelain bushing shell 2 is through on the nickel filament 10 and nisiloy silk 11 of thermopair 1; thermopair 1 places protection tube 5; and make thermopair welding end 13 stretch out protection tube 5 one end 60-100mm; with asbestos rope 6 liners between thermopair 1 and last protection tube 5 inside surfaces; attention should make thermopair 1 not move in last protection tube 5 as far as possible; to descend protection tube 3 to be placed on the protection tube 5 in the wringing fit mode; make thermopair welding end 13 be positioned at protection tube 3 down; and make thermopair welding end 13 distances be not less than 30mm in protection tube 3 bottoms down; filling mixing magnesia 4 in the protection tube 3 down; and tamp; make the thermopair welding end 13 that is arranged in following protection tube 3 buried and be fixed in and mix magnesia 4; to descend protection tube 3 bottoms to place copper liquid surface 5-10 minute; make and mix the magnesia sintering; the nickel filament 10 of thermopair free end 14 and nisiloy silk 11 pass fixedly two holes of porcelain tube 7 respectively; and be fixed on the protection tube 5 by fixing porcelain tube 7; link to each other with the both positive and negative polarity of nisiloy silk 11 with the nickel filament 10 of compensating wire 8, just made the temperature measuring equipment of the continuous measuring high-temperature copper liquid temperature of a simple and easy practicality with intelligence instrument 9 with thermopair free end 14.
The following protection tube 3 and the thermopair welding end 13 of this device place copper liquid 12; just can measure the actual temperature of the following 50～90mm place of liquid level copper liquid in the power frequency induction furnace by the thermoelectric effect of thermopair 1; and show by intelligence instrument 9; temperature-measuring range is wide; can be from 0 ℃～1280 ℃; accurately and reliably; insert copper liquid after 10 minutes; measure the temperature and the copper liquid actual temperature temperature difference at ± 5 ℃; can insert continuously in the copper liquid uses more than one month; even because of changing former thereby frequent taking-ups such as product type specification or deashing, how many life-spans also can not reduce, price is than adopting other material; other structure much lower.
Claims (3)
1; a kind of temperature measuring equipment of continuous measuring high-temperature copper liquid temperature; it is characterized in that: comprise protection tube 5; following protection tube (3); thermopair (1); porcelain bushing shell (2); mix magnesia (4); asbestos rope (6); fixing porcelain tube (7); compensating wire (8); intelligence instrument (9); described protection tube (3) down closely is placed on the protection tube (5); following protection tube (3) immerses in the copper liquid (12); thermopair (1) is positioned at protection tube inside; thermopair welding end (13) is positioned at protection tube (3) down; the nickel filament (10) and the nisiloy silk (11) of thermopair (1) are installed with porcelain bushing shell (2) respectively; filled stone cotton cord (6) between last protection tube (5) inboard and the thermopair (1); thermopair welding end (13) places fills in the following protection tube (3) that mixes magnesia (4); thermopair free end (14) is fixed on the protection tube (5) with fixing porcelain tube (7), and the nickel filament (10) and the nisiloy silk (11) of thermopair free end (14) are connected to respectively on the both positive and negative polarity of intelligence instrument (9) with compensating wire (8).
2, the temperature measuring equipment of a kind of continuous measuring high-temperature copper liquid temperature according to claim 1 is characterized in that: described upward protection tube (5) is copper tube or stainless-steel tube, and following protection tube (3) is a graphite-pipe, and thermopair (1) is a nickel chromium-nickel silicon thermocouple.
3, the temperature measuring equipment of a kind of continuous measuring high-temperature copper liquid temperature according to claim 1 is characterized in that: thermopair welding end (13) distance is not less than 30 millimeters in protection tube (3) bottom down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023543 CN101067574A (en) | 2007-06-07 | 2007-06-07 | Thermo detector for continuous measuring high-temperature copper liquid temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023543 CN101067574A (en) | 2007-06-07 | 2007-06-07 | Thermo detector for continuous measuring high-temperature copper liquid temperature |
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| Publication Number | Publication Date |
|---|---|
| CN101067574A true CN101067574A (en) | 2007-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710023543 Pending CN101067574A (en) | 2007-06-07 | 2007-06-07 | Thermo detector for continuous measuring high-temperature copper liquid temperature |
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| CN (1) | CN101067574A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213686A (en) * | 2011-03-30 | 2011-10-12 | 成都市天府石墨坩埚有限公司 | Temperature measuring tube for graphite crucible, and mould and manufacturing process for temperature measuring tube |
| RU2472120C2 (en) * | 2007-11-23 | 2013-01-10 | Коммиссариат А Л'Энержи Атомик Э Оз Энержи Альтернатив | Method of measuring tube inner surface temperature and device to this end |
-
2007
- 2007-06-07 CN CN 200710023543 patent/CN101067574A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2472120C2 (en) * | 2007-11-23 | 2013-01-10 | Коммиссариат А Л'Энержи Атомик Э Оз Энержи Альтернатив | Method of measuring tube inner surface temperature and device to this end |
| CN102213686A (en) * | 2011-03-30 | 2011-10-12 | 成都市天府石墨坩埚有限公司 | Temperature measuring tube for graphite crucible, and mould and manufacturing process for temperature measuring tube |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071107 |