CN102169024A - Consumable thermocouple capable of weakening side effect of refractory cement - Google Patents
Consumable thermocouple capable of weakening side effect of refractory cement Download PDFInfo
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- CN102169024A CN102169024A CN201010606061.4A CN201010606061A CN102169024A CN 102169024 A CN102169024 A CN 102169024A CN 201010606061 A CN201010606061 A CN 201010606061A CN 102169024 A CN102169024 A CN 102169024A
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- fire
- cement
- compensating line
- clay head
- fire clay
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Abstract
The invention discloses a consumable thermocouple capable of weakening the side effect of refractory cement, belonging to the technical field of thermocouples. The consumable thermocouple comprises a refractory mud head, a compensating line support frame, an anode compensating line, a cathode compensating line, an anode thermo wire, a cathode thermo wire, a protective cap, a quartz tube, refractory cement and a paper tube, wherein the quartz tube is U-shaped; the U-shaped inner side of the quartz tube leans on one end of the refractory mud head; the compensating line support frame is in a step shaft shape; the thin end of the compensating line support frame is connected with the other end of the refractory mud head in a matching way; one end of the anode thermo wire is connected with one end of the cathode thermo wire; the anode compensating line is connected with the other end of the anode thermo wire; the cathode compensating line is connected with the other end of the cathode thermo wire; refractory cement I is used for connecting the quartz tube, the cathode thermo wire and the refractory mud head; refractory cement V is used for connecting the protective cap with the refractory mud head; and the paper tube is connected with the refractory mud head in a matching way. The consumable thermocouple has the advantages of eliminating a leak channel formed by the refractory cement and enhancing the temperature measuring accuracy.
Description
Technical field
The invention belongs to the thermopair technical field, a kind of consumption-type fast thermocouple that weakens the fire cement spinoff is provided especially.
Technical background
The consumption-type fast thermocouple is the sensor that a kind of quick measurement metallurgical melt temperature is used, and uses for many years at metallurgy industry at present.The YB/T163 standard is summarized to the consumption-type fast thermocouple, and has proposed instruction.According to this suggestion, consumption-type thermal couple is made up of positive polar filament 21, negative electrode filament 22, quartz ampoule 23, anodal compensating line 24, negative pole compensating line 25, compensating line support 26, fire clay head 27, fire cement 28, tin hat 29, paper tube 30, as shown in Figure 5.When measuring melt temperature to be measured, this thermopair is immersed in the melt, produces the thermoelectrical potential of representative temperature to be measured between positive polar filament 21 and the negative electrode filament 22, and be sent to special-purpose temperature instrumentation, thus instrument measurement and calculate temperature to be measured.
Yet thermopair shown in Figure 5 is very high to the requirement of fire cement 28, and actual fabrication or often be difficult to reach this requirement when using makes that the measurement result of thermopair is on the low side, is described in detail as follows.
A distinguishing feature of thermopair shown in Figure 5 is that fire cement 28 is filled in the fire clay head 27, makes between anodal thermo wires 21 and the negative pole thermo wires 22, and between anodal compensating line 24 and the negative pole compensating line 25, all links together via fire cement 28.The effect of fire cement 28 has two: one is fixing positive polar filament 21, negative electrode filament 22, in order to avoid between positive polar filament and the anodal compensating line, disconnect between negative electrode filament and the negative pole compensating line; Another guarantees the contact temperature of positive polar filament 21 and anodal compensating line 24, and the contact temperature of negative electrode filament 22 and negative level compensating line 25 all is no more than permissible value.
Because thermopair is to the requirement of fire cement 28, so the assembling of fire cement 28 is more special, at first, water and fire cement dry powder blend evenly obtain the fire cement of mobile shape; The shape fire cement that will flow then seamlessly is poured in the fire clay head 27, with align polar filament 21, negative electrode filament 22 is carried out tentatively fixing; The fire clay head that to pour into a mould cement at last leaves standstill a period of time, so that the cement solidification moulding.
From to the functional requirement of fire cement 28 and production requirement as can be seen, fire cement must have that insulation resistance is big, coefficient of heat conductivity is little, thermal expansivity is little, the uniform characteristic of quality, and does not have bubble, dry no aqueous vapor.Very careful in the time of must and filling in the making of fire cement.At present fire cement mainly contains two big classes, and the first is based on the acid cement of magnesium phosphate, and it two is to be the neutral cement of main material with the aluminium oxide.The former makes moist easily and reduces insulativity, wants kept dry before using even toasts, and has increased trouble to application like this; The latter has been because added some auxiliary materials, make cement at high temperature insulativity reduce, form leak channel at the thermopair place, thereby reduced the thermoelectrical potential of thermopair and make measured temperature on the low side.
In order to use two kinds of cement better, the spinoff that weakens cement just becomes the important technological problems that needs solve.
Summary of the invention
The object of the present invention is to provide a kind of consumption-type fast thermocouple that weakens the fire cement spinoff, innovation by structure, make, anodal thermo wires and negative pole thermo wires, and mainly do not link together between anodal compensating line and the negative pole compensating line with fire cement, and mainly be to link together with the fire clay head, so just avoided the adverse effect of cement as much as possible to thermoelectricity capability.
The present invention comprises fire clay head 1, compensating line bracing frame 2, anodal compensating line 3, negative pole compensating line 4, anodal thermo wires 5, negative pole thermo wires 6, tin hat 7, quartz ampoule 8, fire cement 1, fire cement 2 11, fire cement 3 12, fire cement 4 13, fire cement 5 14, paper tube 15 as shown in Figure 1; Quartz ampoule 8 is the U type, and its U-shaped one end inboard and fire clay head 1 is close together; Compensating line support 2 is step axle shape, and the other end of its thin end and fire clay head cooperates together; One end of anodal thermo wires 5 and an end of negative pole thermo wires 6 link together, and contact is positioned at the U type summit of quartz ampoule 8; The other end that anodal compensating line 3 passes compensating line support 2, fire clay head 1 and anodal thermo wires 5 links together; The other end that negative pole compensating line 4 passes compensating line support 2, fire clay head 1 and negative pole thermo wires 6 links together; Fire cement 1 links together quartz ampoule 8, negative pole thermo wires 6 and fire clay head 1; Fire cement 2 11 links together quartz ampoule 8, anodal thermo wires 5 and fire clay head 1; Fire cement 3 12 links together negative pole compensating line 4 and fire clay head 1; Fire cement 4 13 links together anodal compensating line 3 and fire clay head 1; Fire cement 5 14 links together tin hat 8 and fire clay head 1; Paper tube 15 and fire clay head 1 cooperate together;
Fire clay head 1 profile is step axle shape, and two ends are thin, and is middle thick, comprises end face, the face of cylinder, counterbore 33, ring groove, square through hole 37, manhole; First ring groove 31 is on first end face 30, along the axis direction of fire clay head 1; Counterbore 33 is on second end face 32, along the axis direction of fire clay head 1; Square through hole 37 is on first face of cylinder 36, along the axis direction perpendicular to fire clay head 1; Square through hole 37 is not communicated with first ring groove 31 and counterbore 33; Manhole 38,39,40,41 is parallel to each other, and is parallel to the axis direction of fire clay head; Manhole 38,39,40,41 and square through hole 37 are communicated with; First manhole 38 and the 3rd manhole 40 are coaxial, and second manhole 39 and the 4th manhole 41 are coaxial; Ring groove 35 is positioned on the end face 34, along being parallel to fire clay head 1 axis direction;
Description of drawings
Fig. 1 is an integral installation figure of the present invention, wherein, and fire clay head 1, compensating line bracing frame 2, anodal compensating line 3; negative pole compensating line 4, anodal thermo wires 5, negative pole thermo wires 6, tin hat 7, quartz ampoule 8; fire cement 1, fire cement 2 11, fire cement 3 12, fire cement 4 13, fire cement 5 14.
Fig. 2 is the front view of fire clay head 1.
Fig. 3 is the A-A cut-open view of fire clay head 1.
Fig. 4 is the B-B cut-open view of fire clay head 1, and wherein end face 30,32,34,44, the face of cylinder 36,42,43, counterbore 33, ring groove 31,35, square through hole 37, manhole 38,39,40,41;
Fig. 5 is the integral installation figure that has thermopair on the market now, wherein, and positive polar filament 21, negative electrode filament 22, quartz ampoule 23, anodal compensating line 24, negative pole compensating line 25, compensating line support 26, fire clay head 27, fire cement 28, tin hat 29, paper tube 30.
Embodiment
To make the WRe3/WRe25 consumption-type thermal couple is example, illustrates that embodiments of the present invention are as follows:
1. be ready to fire clay head 1, compensating line bracing frame 2, anodal compensating line 3, negative pole compensating line 4, anodal thermo wires 5, negative pole thermo wires 6, tin hat 7, quartz ampoule 8, paper tube 15 by Fig. 1; Fire clay head 1 is pressed Fig. 2～4 designs, uses the corundum material, refractoriness 1800 degree; Anodal thermo wires 5 and negative pole thermo wires 6 adopt commercially available WRe3 and WRe25 material, diameter 0.1mm respectively; Anodal compensating line 3 and negative pole compensating line 4 adopt the commercially available compensating line at the WRe3/WRe25 thermopair; Compensating line support 2, tin hat 7, quartz ampoule 8, paper tube 15 are pressed Fig. 1 customization.
2. buy commercially available fire cement, refractoriness 1800 degree; Water and fire cement dry powder blend evenly obtain the fire cement of mobile shape;
3. an end of anodal thermo wires 5 and an end of negative pole thermo wires 6 are welded together;
4. anodal thermo wires 5 that will link together and negative pole thermo wires 6 are separately also stretching gently along contact;
5. anodal thermo wires 5 after stretching and negative pole thermo wires 6 are passed quartz ampoule 8, anodal thermo wires 5 and negative pole thermo wires 6 are laid respectively in two parallel pipes of quartz ampoule 8, make the common junction of anodal thermo wires 5 and negative pole thermo wires 6 be positioned at quartzy pipe U-shaped lowermost end simultaneously;
6. make anodal thermo wires 5 and negative pole thermo wires 6 be fixed on the central authorities of the quartz ampoule mouth of pipe, be coated on two mouths of pipe of quartz ampoule 8, anodal thermo wires 5 and negative pole thermo wires 6 are fixed on the quartz ampoule up to theing cement solidifies with the shape fire cement that flows;
7. two parallel pipes of quartz ampoule 8 are passed simultaneously the manhole 38 and 39 of fire clay head 1 together with anodal thermo wires 5, negative pole thermo wires 6, end face 30 inboard up to the U of quartz ampoule 8 type and fire cement 1 is close together, and makes the other end of the other end of anodal thermo wires 5 and negative pole thermo wires 6 be arranged in the square through hole 37 of fire clay head 1;
8. anodal compensating line 3 and negative pole compensating line 4 are respectively charged in the compensating line bracing frame 2;
9. compensating line support 2 is encased in the fire clay head 1, makes anodal compensating line 3 and negative pole compensating line 4, and stretch in the middle of the arrival square through hole 37 respectively by manhole 40 and 41; Adjusting anodal compensating line 3 and negative pole compensating line 4 gently makes them have a bit of overlapping with anodal thermo wires 5, negative pole thermo wires 6 respectively;
10. use press welder to be pressed into anodal thermo wires 5 in the anodal compensating line 3 respectively, negative pole thermo wires 6 is pressed in the negative pole compensating line 4;
The fire cement of shape is circulated in the space of manhole 38,39,40,41 up to theing cement solidifies 11. will flow, and the cement in the circular hole 38,39,40,41 is followed successively by fire cement 2 11, fire cement 1, fire cement 4 13, fire cement 3 12;
12. tin hat 7 is installed in the ring groove 31, pour into the shape cement that flows up to theing cement solidifies, solidifying back cement is fire cement 5 14;
13. paper tube 15 is set on the face of cylinder 36 of fire clay head 1, promote paper tube up to it be embedded into can not move again in the ring groove 35 till.
Claims (2)
1. consumption-type thermal couple that weakens the fire cement spinoff, it is characterized in that, comprise fire clay head (1), compensating line bracing frame (2), anodal compensating line (3), negative pole compensating line (4), anodal thermo wires (5), negative pole thermo wires (6), tin hat (7), quartz ampoule (8), fire cement one (10), fire cement two (11), fire cement three (12), fire cement four (13), fire cement five (14), paper tube (15); Quartz ampoule (8) is the U type, and its U-shaped one end inboard and fire clay head (1) is close together; Compensating line support (2) is step axle shape, and the other end of its thin end and fire clay head (1) cooperates together; One end of anodal thermo wires (5) and an end of negative pole thermo wires (6) link together, and contact is positioned at the U type summit of quartz ampoule (8); The other end that anodal compensating line (3) passes compensating line support (2), fire clay head (1) and anodal thermo wires (5) links together; The other end that negative pole compensating line (4) passes compensating line support (2), fire clay head (1) and negative pole thermo wires (6) links together; Fire cement one (10) links together quartz ampoule (8), negative pole thermo wires (6) and fire clay head (1); Fire cement two (11) links together quartz ampoule (8), anodal thermo wires (5) and fire clay head (1); Fire cement three (12) links together negative pole compensating line (4) and fire clay head (1); Fire cement four (13) links together anodal compensating line (3) and fire clay head (1); Fire cement five (14) links together tin hat (8) and fire clay head (1); Paper tube (15) and fire clay head (1) cooperate together.
2. thermopair as claimed in claim 1 is characterized in that, described fire clay head (1) profile is step axle shape, and two ends are thin, and is middle thick, comprises end face, the face of cylinder, counterbore (33), ring groove, square through hole (37), manhole; First ring groove (31) is on first end face (30), along the axis direction of fire clay head (1); Counterbore (33) is on second end face (32), along the axis direction of fire clay head (1); Square through hole (37) is on first face of cylinder (36), along the axis direction perpendicular to fire clay head (1); Square through hole (37) is not communicated with first ring groove (31) and counterbore (33); Manhole (38,39,40,41) is parallel to each other, and is parallel to the axis direction of fire clay head (1); Manhole (38,39,40,41) and square through hole (37) are communicated with; First manhole (38) and the 3rd manhole (40) are coaxial, and second manhole (39) and the 4th manhole (41) are coaxial; Second ring groove (35) is positioned on the end face (34), along being parallel to fire clay head (1) axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010606061.4A CN102169024B (en) | 2010-12-15 | 2010-12-15 | Consumable thermocouple capable of weakening side effect of refractory cement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010606061.4A CN102169024B (en) | 2010-12-15 | 2010-12-15 | Consumable thermocouple capable of weakening side effect of refractory cement |
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| Publication Number | Publication Date |
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| CN102169024A true CN102169024A (en) | 2011-08-31 |
| CN102169024B CN102169024B (en) | 2012-11-28 |
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|---|---|---|---|
| CN201010606061.4A Expired - Fee Related CN102169024B (en) | 2010-12-15 | 2010-12-15 | Consumable thermocouple capable of weakening side effect of refractory cement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928629A (en) * | 2016-04-29 | 2016-09-07 | 武汉理工大学 | Steel smelting temperature measurement paper clay head and fire-resistant adhesive applied thereto |
| CN109556750A (en) * | 2019-01-23 | 2019-04-02 | 浙江泰索科技有限公司 | A kind of high temperature resisting thermocouple exhaust gas temperature sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709040A (en) * | 1969-11-28 | 1973-01-09 | Land Pyrometers Ltd | Lances for taking samples of molten metal |
| CN2296996Y (en) * | 1997-06-18 | 1998-11-11 | 赵平新 | Durable thermometric thermocouple |
| CN201173831Y (en) * | 2008-04-03 | 2008-12-31 | 南京钢铁集团盛达实业有限公司 | Fast thermocouple |
-
2010
- 2010-12-15 CN CN201010606061.4A patent/CN102169024B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709040A (en) * | 1969-11-28 | 1973-01-09 | Land Pyrometers Ltd | Lances for taking samples of molten metal |
| CN2296996Y (en) * | 1997-06-18 | 1998-11-11 | 赵平新 | Durable thermometric thermocouple |
| CN201173831Y (en) * | 2008-04-03 | 2008-12-31 | 南京钢铁集团盛达实业有限公司 | Fast thermocouple |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928629A (en) * | 2016-04-29 | 2016-09-07 | 武汉理工大学 | Steel smelting temperature measurement paper clay head and fire-resistant adhesive applied thereto |
| CN109556750A (en) * | 2019-01-23 | 2019-04-02 | 浙江泰索科技有限公司 | A kind of high temperature resisting thermocouple exhaust gas temperature sensor |
| CN109556750B (en) * | 2019-01-23 | 2024-02-20 | 浙江泰索科技有限公司 | High-temperature-resistant thermocouple exhaust temperature sensor |
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| Publication number | Publication date |
|---|---|
| CN102169024B (en) | 2012-11-28 |
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Granted publication date: 20121128 Termination date: 20161215 |