CN108489626B - Thermocouple device for measuring tin bath temperature in float glass melting furnace - Google Patents
Thermocouple device for measuring tin bath temperature in float glass melting furnace Download PDFInfo
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- CN108489626B CN108489626B CN201711125027.3A CN201711125027A CN108489626B CN 108489626 B CN108489626 B CN 108489626B CN 201711125027 A CN201711125027 A CN 201711125027A CN 108489626 B CN108489626 B CN 108489626B
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- Prior art keywords
- thermocouple
- temperature
- measuring
- support tube
- junction box
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000005329 float glass Substances 0.000 title claims abstract description 17
- 238000002844 melting Methods 0.000 title abstract description 13
- 230000008018 melting Effects 0.000 title abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 18
- 239000010439 graphite Substances 0.000 claims abstract description 18
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 25
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 abstract description 32
- 239000011521 glass Substances 0.000 abstract description 11
- 230000004044 response Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 229910001026 inconel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a thermocouple device for measuring the temperature of a tin bath in a float glass melting furnace, which comprises: the wire holder is arranged in the wire holder, the junction box is used for outputting the temperature measured by the wire holder, and the support tube is connected with the junction box, the wire holder is arranged in the wire holder, the wire holder is arranged in the support tube, the lower end of the support tube is also connected with a thermocouple protective sleeve made of graphite and a heat insulation block arranged between the support tube and the thermocouple protective sleeve, the thermocouple protective sleeve is provided with a containing cavity, and the temperature measuring end of the wire holder extends out from the lower port of the support tube, passes through the heat insulation block and is arranged in the containing cavity. The thermocouple device has the advantages of being not easy to corrode, free from pollution of glass solution and tin solution, simple in structure, short in thermal response time, high in temperature measurement precision and the like.
Description
Technical Field
The invention relates to a thermocouple device, in particular to a thermocouple device for the temperature of a tin bath in a float glass melting furnace.
Background
In a float glass furnace, a float glass tin bath has a gas seal space with a complex structure, namely, the float glass tin bath consists of glass melt, tin liquid and protective gas, wherein the protective gas is usually N2 and H2, and the temperature can reach 1100 ℃. In order to prevent molten glass from being polluted, the design and development of materials and structures of a thermocouple protective sleeve for measuring the temperature of a tin bath are always difficult problems of measuring the temperature in the glass industry.
At present, an infrared thermometer is generally used for measuring temperature, but the infrared thermometer has the following defects: 1. only the surface temperature can be measured, the temperature inside an object and when an obstacle exists can not be conveniently measured, the tin groove wall is made of refractory materials, reinforcing steel bars, graphite lining and the like, and the wall thickness is about 300mm, so that the influence on temperature measurement is great; 2. the measurement value is inaccurate due to much environmental interference, such as ambient temperature, dust in the air, light and the like; 3. the thermometer is vertically aligned with the surface of the object to be measured, and in any case, the angle cannot exceed 30 ℃.
Disclosure of Invention
The invention provides a thermocouple device for measuring the temperature of a tin bath in a float glass melting furnace, which aims at the problems, and has the advantages of resistance to corrosion of various gases in the melting furnace, simple structure, accurate temperature measurement and the like.
The invention adopts the following technical means:
a thermocouple device for measuring the temperature of a tin bath in a float glass furnace, comprising: the temperature measuring device comprises an armored thermocouple for measuring temperature, a junction box, a supporting tube, a thermocouple protection sleeve and a heat insulation block, wherein a junction seat is arranged in the armored thermocouple for outputting the temperature measured by the armored thermocouple, the supporting tube is connected with the junction box, the armored thermocouple is arranged in the supporting tube, the lower end of the supporting tube is also connected with the thermocouple protection sleeve made of graphite and the heat insulation block arranged between the supporting tube and the thermocouple protection sleeve, the thermocouple protection sleeve is provided with a containing cavity, and the temperature measuring end of the armored thermocouple extends out from the lower port of the supporting tube, passes through the heat insulation block and is arranged in the containing cavity;
Further, the thermocouple protection sleeve is a cylinder, the heat insulation block is a cylinder, the accommodating cavity is a blind hole horizontally processed along the radial direction of the side surface of the thermocouple protection sleeve, the armored thermocouple comprises a vertical part, a first bending part, a first connecting part, a second bending part and a temperature measuring part, the vertical part is arranged in the supporting tube, two ends of the first bending part are respectively connected with the vertical part and the first connecting part, the first bending part and the first connecting part are arranged in the heat insulation block, the second bending part is connected with the first connecting part and the temperature measuring part, and the temperature measuring part is arranged in the accommodating cavity;
further, the support tube is also provided with a thermocouple fixing device, the upper part of the support tube is provided with external threads, and the thermocouple fixing device comprises a flange adjusting sleeve connected to the support tube in a threaded manner, a connecting disc integrated with the flange adjusting sleeve and a flange connected with the connecting disc;
Further, a high-temperature gasket is arranged at the lower end of the flange, and the high-temperature gasket is made of aluminum silicate cotton;
further, the thermocouple fixing device also comprises at least one first lock nut arranged at the upper end of the flange adjusting sleeve;
Further, the supporting tube is in threaded connection with the junction box, and at least one second locking nut is arranged at the joint of the supporting tube and the junction box;
Further, the heat insulation block is made of aluminum silicate cotton;
further, a baffle ring is arranged on the support tube;
further, vibration type refractory bricks are also arranged on the baffle ring;
further, the junction box is also provided with a lifting lug.
Compared with the prior art, the thermocouple device for measuring the temperature of the tin bath in the float glass melting furnace has the following advantages: 1. the thermocouple device is provided with a protective sleeve formed by graphite, the graphite is not mutually infiltrated with molten tin and molten glass at high temperature, so that the glass solution is prevented from being polluted, and meanwhile, the graphite has good heat conduction and electric conduction properties, and the quick and accurate temperature measurement performance can be ensured; 2. the graphite protective sleeve and the support tube are isolated by adopting aluminum silicate cotton, so that the heat transferred to the support tube through the protective sleeve can be reduced, and the accuracy of temperature measurement of the thermocouple temperature measuring end is ensured; 3. the graphite protective sleeve is a cylinder, the end face of the cylinder is provided with a larger heating area, the temperature of the protective sleeve is guaranteed to be consistent with the temperature in the glass melting furnace, a thermocouple accommodating cavity of the protective sleeve is processed on the side face of the cylinder, an armored thermocouple of the thermocouple device is subjected to multistage bending to form a hockey stick type structure, the temperature measuring end of the armored thermocouple is horizontally arranged in the accommodating cavity of the protective sleeve, and the temperature measuring end of the thermocouple and the protective sleeve are provided with a larger contact area, so that the thermal response time is accelerated; 4. the holding cavity is processed on the side wall of the protective sleeve of the graphite structure, namely the processing direction of the holding cavity is the same as the lamellar structure of the graphite, so that the processing difficulty on the graphite can be reduced; 5. aluminum silicate cotton is adopted as a heat insulation block, so that the heat insulation block has good corrosion resistance and heat insulation performance; 6. the support tube is provided with external threads, the thermocouple fixing device can be used for adjusting the position of the support tube, and the depth of the thermocouple device inserted into the tin bath can be conveniently adjusted and corrected.
Drawings
FIG. 1 is a structural view of a thermocouple device of the present invention;
FIG. 2 is a block diagram of an armored thermocouple;
FIG. 3 is a block diagram of a junction box;
FIG. 4 is a connection diagram of a wire holder;
Fig. 5 is a diagram of a flange structure.
In the figure: 1. the thermocouple comprises an armored thermocouple, 11, a vertical part, 12, a first bending part, 13, a first connecting part, 14, a second bending part, 15 and a temperature measuring part;
2. the junction box, 21, the wire holder, 22 and the lifting lug;
3. The thermocouple comprises a supporting tube, 31, a thermocouple fixing device, 311, a flange adjusting sleeve, 312, a connecting disc, 313, a flange plate, 314, a first locking nut, 315, a second locking nut, 316, a baffle ring, 317 and a protective sleeve fixing disc;
4. Thermocouple protective sleeves, 41, accommodating chambers;
5, a heat insulation block;
6. A high temperature gasket;
7. Vibration type refractory brick.
Detailed Description
As shown in fig. 1, 2 and 4, a thermocouple device for measuring a temperature of a molten tin bath in a float glass furnace according to the present invention includes: the wire holder 21 is arranged in the wire holder 2 for outputting the temperature measured by the wire holder 1, the junction box 2 is connected with the junction box 2, the wire holder 21 is electrically connected with two wires of the wire holder 21 (a group of wire holders are shown in the figure) of the wire holder as shown in fig. 4, the lower end of the junction box 3 is also connected with the thermocouple protection sleeve 4 made of graphite and the heat insulation block 5 arranged between the junction box 3 and the thermocouple protection sleeve 4, the thermocouple protection sleeve 4 is provided with the accommodating cavity 41, and the temperature measuring end of the wire holder 1 extends out from the lower port of the junction box 3, passes through the heat insulation block 5 and is arranged in the accommodating cavity 41. Specifically, the lower end of the support tube 3 is provided with a protective sleeve fixing disc 317 for fixing the thermocouple protective sleeve 4, the protective sleeve fixing disc 317 may be an annular disc structure integrally processed with the support tube 3 or welded at the lower end of the support tube 3, the heat insulation block 5 and the thermocouple protective tube 4 are fixed on the protective tube fixing disc 317 through a plurality of bolts, and further, in order to reduce heat transfer to the protective sleeve fixing disc of the thermocouple through the bolts, structures such as a heat insulation sleeve and a heat insulation pad may be arranged between the bolts and the fixing disc. The temperature measuring end of the armored thermocouple 1 extends out of the lower port of the supporting tube 3, passes through the heat insulation block 5 and is placed in the accommodating cavity 41 of the blind hole structure in the thermocouple protecting sleeve 4. In the use, this thermocouple hangs in the glass melting furnace tin liquid's top, graphite protective sheath and tin liquid distance certain distance, owing to graphite protective sheath becomes discoid structure, has great heated area, can be with the quick temperature measurement end of transfer to the thermocouple of tin liquid in order to measure the temperature of smelting furnace, owing to graphite's chemical nature is inert, its glass solution in also can not be with glass melting furnace and tin liquid steam and shielding gas infiltration each other under the high temperature, both eliminated when using ordinary thermocouple to be arranged in measuring the glass melting furnace temperature and easily corroded and lead to the problem that the thermocouple damaged, also avoided glass solution and tin liquid to be polluted because of the thermocouple is corroded. Meanwhile, the graphite has good heat conduction and electric conduction performance, so that the temperature can be rapidly transferred to the temperature measuring end of the thermocouple.
The thermocouple protective sleeve 4 is a cylinder, and the heat insulation block 5 is a cylinder. The accommodating cavity 41 on the thermocouple protecting sleeve 4 can be a blind hole structure processed along the axial direction, and the temperature measuring end of the armored thermocouple 1 is directly and vertically inserted into the accommodating cavity 41, but the structure can cause low temperature measuring precision or long thermal response time due to the fact that the insertion depth of the temperature measuring end of the inserted armored thermocouple is too small. Meanwhile, in order to ensure that the temperature measuring end can be tightly contacted with the accommodating cavity, the accommodating cavity needs higher machining precision.
Preferably, the accommodating cavity 41 is a blind hole horizontally machined on the side surface of the thermocouple protecting sleeve 4 along the radial direction, and since graphite is an isotope of carbon and has a lamellar structure, the accommodating cavity 41 is machined along the radial direction of the thermocouple protecting sleeve 4, that is, the accommodating cavity is machined along the lamellar direction of the graphite, so that the machining difficulty can be reduced, the machining cost can be reduced, and the machining precision can be ensured. The armoured thermocouple 1 is bent to form a vertical part 11, a first bending part 12, a first connecting part 13, a second bending part 14 and a temperature measuring part 15, the vertical part 11 is arranged in the supporting tube 3, the upper end of the vertical part is electrically connected with a wire holder 21 in the junction box 2, the lower end of the vertical part 11 is bent to form the first bending part 12, the other end of the first bending part 12 is connected with the first connecting part 13, the first bending part 12 and the first connecting part 13 are arranged in the heat insulation block 5, the other end of the first connecting part 13 is bent to form the second bending part 14, the other end of the second bending part 14 is the temperature measuring part 15, the temperature measuring part 15 is horizontally arranged in the accommodating cavity 41, and a temperature measuring element for measuring temperature is arranged in the thermocouple protecting sleeve 4, so that the temperature of a tin bath in the glass melting furnace can be measured. Because thermocouple protective sheath 4 is the cylinder, it has great terminal surface, can receive more heat, holds chamber 41 and processes along thermocouple protective sheath 4's radial direction, can make thermocouple protective sheath 4 have darker holding chamber 41 under the less condition of thickness, increase armor thermocouple 1 temperature measurement end and hold the area of contact of chamber 41 and improve response time, hold the position of chamber 41 simultaneously can be nearer with thermocouple protective sheath 4's lower terminal surface (temperature sensing face), further improves response time and temperature measurement accuracy. The armoured thermocouple 1 has certain residual stress in the bending process of the second bending part 14, when the armoured thermocouple is used for temperature measurement, the residual stress of the second bending part 14 is released, so that the two ends of the second bending part 14 can rebound to a certain extent, the temperature measuring end 15 can be tightly contacted with the wall surface of the accommodating cavity 41 under the rebound effect to ensure the accuracy of temperature measurement, and the processing precision of the accommodating cavity 41 can be reduced due to the rebound force of the second bending part 14, so that the temperature measuring end 15 and the accommodating cavity 41 have better contact effect.
Further, as shown in fig. 1 and 5, the upper portion of the support tube 3 has external threads, and the support tube 3 further has a thermocouple fixing device 31 thereon, and the thermocouple fixing device 31 includes a flange adjusting sleeve 311 screwed on the support tube 3, a connection disc 312 integrally formed with the flange adjusting sleeve 311, and a flange 313 connected with the connection disc 312. The flange adjusting sleeve 311 is internally provided with an internal thread structure for being connected with an external thread on the outer wall of the supporting tube 1, and the connecting disc 312 can be a structure integrally processed with the flange adjusting sleeve 311 or a structure welded together (a welded structure in the figure). The connection pad 312 is in the same place through the bolt with the ring flange 313, rotates the position that the ring flange 313 is fixed on stay tube 3 with rotating flange adjustment sleeve 311, and the ring flange 313 is with glass melting furnace fixed connection, in this embodiment, as shown in fig. 5, the ring flange 313 is square structure, can be convenient change thermocouple protective sheath 4's lower terminal surface (temperature sensing face) distance from the tin bath through adjusting flange adjustment sleeve 311 in order to adapt to different temperature measurement demands. In order to increase the connection firmness of the thermocouple fixing device 31 and the support tube 3, at least one first locking nut 314 is also arranged at the upper end of the flange adjusting sleeve 311. The flange 313 also has a high temperature washer at its lower end, which is made of aluminum silicate wool, which reduces heat loss from the gap between the thermocouple and the furnace, and also reduces heat transfer to the thermocouple through the furnace wall.
Further, in order to facilitate connection of the support tube 3 and the junction box 2 and replacement of the armored thermocouple 1, the support tube 3 and the junction box 2 are connected by threads, and at least one second locking nut 315 is further arranged at the connection position of the support tube 3 and the junction box 2 to enhance connection performance.
Further, the heat insulation block 5 is made of aluminum silicate cotton, and the aluminum silicate cotton has strong corrosion resistance, heat insulation and high temperature resistance, so that the heat transferred to the support tube 3 by the thermocouple protective sleeve 4 can be reduced, and the heat dissipation in the armored thermocouple 1 is also reduced.
Further, a baffle ring 316 is arranged on the support tube 3, a plurality of vibration type refractory bricks 7 are arranged on the baffle ring 316, and a thermocouple detection port on the furnace can be sealed through the baffle ring and the refractory bricks, so that excessive heat is prevented from overflowing from the detection port.
Further, as shown in fig. 3, a lifting lug 22 is further arranged on the junction box 2, and the lifting lug 22 can be used for moving the thermocouple, so that the thermocouple is convenient to install and use.
In the thermocouple device, the armored thermocouple is an armored K pair, the armor material at the outer end of the thermocouple is Inconel (Inconel 600), and the supporting tube, the first locking nut, the second locking nut and the thermocouple fixing device are all made of austenitic Inconel stainless steel (310S stainless steel).
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. A thermocouple device for measuring the temperature of a tin bath in a float glass furnace, comprising: a armoured thermocouple (1) for carrying out temperature measurement, inside have junction box (2) that junction box (21) are used for with the temperature output that armoured thermocouple measured and with stay tube (3) that junction box (2) are connected, armoured thermocouple (1) are arranged in stay tube (3), its characterized in that: the lower end of the supporting tube (3) is connected with a thermocouple protecting sleeve (4) made of graphite and a heat insulation block (5) arranged between the supporting tube (3) and the thermocouple protecting sleeve (4), the thermocouple protecting sleeve (4) is provided with a containing cavity (41), and the temperature measuring end of the armored thermocouple (1) extends out of the lower port of the supporting tube (3) and then passes through the heat insulation block (5) and is arranged in the containing cavity (41);
The thermocouple protection sleeve (4) is a cylinder, the heat insulation block (5) is a cylinder, the accommodating cavity (41) is a blind hole horizontally machined in the radial direction of the side surface of the thermocouple protection sleeve (4), the armored thermocouple (1) comprises a vertical part (11), a first bending part (12), a first connecting part (13), a second bending part (14) and a temperature measuring part (15), the vertical part (11) is arranged in the supporting tube (3), two ends of the first bending part (12) are respectively connected with the vertical part (11) and the first connecting part (13), the first bending part (12) and the first connecting part (13) are arranged in the heat insulation block (5), the second bending part (14) is connected with the first connecting part (13) and the temperature measuring part (15), and the temperature measuring part (15) is arranged in the accommodating cavity (41);
The support tube (3) is also provided with a thermocouple fixing device (31), the upper part of the support tube (3) is provided with external threads, and the thermocouple fixing device (31) comprises a flange adjusting sleeve (311) which is connected with the support tube (3) in a threaded manner, a connecting disc (312) which is integrated with the flange adjusting sleeve (311) into a whole, and a flange (313) which is connected with the connecting disc (312);
the thermocouple fixing device (31) further comprises at least one first locking nut (314) arranged at the upper end of the flange adjusting sleeve (311);
The support tube (3) is in threaded connection with the junction box (2), and at least one second lock nut (315) is further arranged at the joint of the support tube (3) and the junction box (2).
2. Thermocouple device for measuring the temperature of a tin bath in a float glass furnace according to claim 1, characterized in that: the lower end of the flange plate (313) is also provided with a high-temperature gasket (6), and the high-temperature gasket (6) is made of aluminum silicate cotton.
3. Thermocouple device for measuring the temperature of a tin bath in a float glass furnace according to claim 2, characterized in that: the heat insulation block (5) is made of aluminum silicate cotton.
4. A thermocouple device for measuring the temperature of a molten tin bath in a float glass furnace according to claim 3, wherein: a baffle ring (316) is also arranged on the support tube (3).
5. A thermocouple device for measuring the temperature of a molten tin bath in a float glass furnace according to claim 4, wherein: the baffle ring (316) is also provided with a vibrating refractory brick (7).
6. Thermocouple device for measuring the temperature of a tin bath in a float glass furnace according to claim 1, characterized in that: the junction box (2) is also provided with a lifting lug (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711125027.3A CN108489626B (en) | 2017-11-14 | 2017-11-14 | Thermocouple device for measuring tin bath temperature in float glass melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711125027.3A CN108489626B (en) | 2017-11-14 | 2017-11-14 | Thermocouple device for measuring tin bath temperature in float glass melting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN108489626A CN108489626A (en) | 2018-09-04 |
| CN108489626B true CN108489626B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711125027.3A Active CN108489626B (en) | 2017-11-14 | 2017-11-14 | Thermocouple device for measuring tin bath temperature in float glass melting furnace |
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| CN (1) | CN108489626B (en) |
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| CN203024898U (en) * | 2012-12-27 | 2013-06-26 | 海南中航特玻材料有限公司 | Crank type thermocouple |
| CN205120265U (en) * | 2015-10-20 | 2016-03-30 | 江苏环亚电热仪表有限公司 | Gaseous temperature thermocouple |
| CN207528359U (en) * | 2017-11-14 | 2018-06-22 | 久茂自动化(大连)有限公司 | A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln |
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| CN108489626A (en) | 2018-09-04 |
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