CN207528359U - A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln - Google Patents
A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln Download PDFInfo
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- CN207528359U CN207528359U CN201721517385.4U CN201721517385U CN207528359U CN 207528359 U CN207528359 U CN 207528359U CN 201721517385 U CN201721517385 U CN 201721517385U CN 207528359 U CN207528359 U CN 207528359U
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- thermocouple
- support tube
- tin bath
- molten tin
- float glass
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Abstract
The utility model discloses a kind of for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, including：For carrying out the armoured thermocouple of temperature survey, the internal junction block that is equipped with for the terminal box for exporting the temperature that armoured thermocouple measures and the support tube being connect with terminal box; armoured thermocouple is placed in support tube; support tube lower end is also associated with protective cover for thermocouple and the heat insulation being placed between support tube and protective cover for thermocouple made of graphite; thermocouple protection is put on accommodating chamber, and the thermometric end of armoured thermocouple is placed in accommodating chamber after being stretched out from the lower port of support tube across heat insulation.The thermocouple assembly has many advantages, such as to be not easy to be corroded, glass solution and tin liquor will not be caused to pollute, and it is simple in structure, thermal response time is short, temperature measurement accuracy is high.
Description
Technical field
The utility model is related to a kind of thermocouple assembly, especially a kind of heat for molten tin bath temperature in float glass smelting kiln
Coupled device.
Background technology
In float glass smelting kiln, float glass tin bath has the sealing gland space of labyrinth, i.e., by glass melts, tin liquor
It is formed with protective gas three-phase, wherein protective gas is usually using N2 and H2, and temperature is up to 1100 DEG C.Melten glass in order to prevent
Liquid is contaminated, and always glass industry thermometric is designed and developed for the thermocouple protective casing material and structure of molten tin bath thermometric
Problem.
Thermometric is generally carried out using infrared thermometer at present, but it is with following deficiency：1st, measurement surface temperature is only capable of,
Being inconvenient to measure interior of articles and there are temperature during barrier, molten tin bath wall is made of refractory material, reinforcing bar and graphite liner etc.,
Wall thickness about 300mm influences thermometric very big；2nd, more by environmental disturbances, such as environment temperature, dust in air, light etc. can
Cause measured value inaccurate；3rd, temperature measurer wants perpendicular alignmnet testee surface, and under any circumstance, angle is all no more than
30℃。
Utility model content
The utility model proposing in view of the above problems is a kind of for measuring the heat of molten tin bath temperature in float glass smelting kiln
Coupled device, which has many advantages, such as to resist various gas attacks in melting furnaces, and thermometric simple in structure is accurate.
The technological means that the utility model uses is as follows：
A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln, including：For carrying out temperature survey
Armoured thermocouple, the terminal box that exports of the internal temperature for being equipped with junction block for the armoured thermocouple to be measured and with institute
State the support tube of terminal box connection, the armoured thermocouple is placed in the support tube, the support tube lower end be also associated with by
Protective cover for thermocouple made of graphite and the heat insulation being placed between the support tube and the protective cover for thermocouple, the thermoelectricity
There is accommodating chamber, the thermometric end of the armoured thermocouple to be passed through after being stretched out from the lower port of the support tube described on even protective case
Heat insulation is placed in the accommodating chamber；
Further, the protective cover for thermocouple is cylinder, and the heat insulation is cylinder, and the accommodating chamber is in institute
State the blind hole of the side upper edge of protective cover for thermocouple its radial direction level processing, the armoured thermocouple includes vertical component effect, the
One bending part, first connecting portion, the second bending part and thermometric portion, the vertical component effect are placed in support tube, first bending part
Both ends are connect respectively with the vertical component effect and first connecting portion, first bending part and the first connecting portion be placed in it is described every
In heat block, second bending part connects the first connecting portion and the thermometric portion, the thermometric portion are placed in the accommodating chamber
In；
Further, also there is thermocouple fixing device on the support tube, the top of the support tube has external screw thread,
The thermocouple fixing device includes the flange adjusting set being threaded on the support tube, is one with the flange adjusting set
The terminal pad of body structure and the ring flange being connect with the terminal pad；
Further, the ring flange lower end is also equipped with high temperature gasket, and the material of the high temperature gasket is aluminium silicate wool；
Further, the thermocouple fixing device, which further includes, is placed in the flange adjusts set upper side at least one first
Locking nut；
Further, the support tube is threadedly coupled with the terminal box, the support tube and the terminal box junction
Also it is equipped at least one second locking nut；
Further, the heat-insulated stock material is aluminium silicate wool；
Further, the upper of the support tube also has baffle ring；
Further, it is also equipped with oscillating mode refractory brick on the baffle ring；
Further, also there is lifting lug in the terminal box.
Compared with the prior art, the thermocouple described in the utility model for being used to measure molten tin bath temperature in float glass smelting kiln
Device has the following advantages：1st, the thermocouple assembly have graphite form protective case, graphite at high temperature also not with tin liquor and
Glass metal mutually infiltrates, and avoids glass solution and is contaminated, while graphite has good heat conduction and electric conductivity, it is ensured that
The quick and accurate performance of thermometric；2nd, it is isolated between graphite protective sleeve and support tube using aluminium silicate wool, it is possible to reduce logical
Overprotection set is transmitted to the heat on support tube, ensure that the precision of thermocouple temperature measurement end measured temperature；3rd, graphite protective sleeve is
Cylinder, the end face of cylinder have larger heating surface area, ensure that the temperature of protective case is consistent with temperature in glass melter, protect
For the thermocouple accommodating chamber of sheath to be processed on the side of cylinder, the armoured thermocouple of thermocouple assembly carries out multistage Curved
Into hockey rod-type structure, and the thermometric end of armoured thermocouple is horizontally placed at the accommodating chamber of protective case, the thermometric end of thermocouple
Thermal response time is accelerated with contact area of the protective case with bigger；4th, accommodating chamber is on the protective case side wall of graphite-structure
Processing, i.e. the machine direction of accommodating chamber and the lamellar structure of graphite is in the same direction, can reduce the difficulty of processing on graphite；5th, it uses
Aluminium silicate wool has good corrosion-resistant and heat-proof quality as heat insulation；6th, there is external screw thread, thermocouple is fixed on support tube
Device can put adjusting in the enterprising line position of support tube, can be conveniently adjusted and correct the depth that thermocouple assembly is inserted into molten tin bath.
Description of the drawings
Fig. 1 is the structure chart of the thermocouple assembly of the present invention；
Fig. 2 is the structure chart of armoured thermocouple；
Fig. 3 is the structure chart of terminal box；
Fig. 4 is the connection figure of junction block；
Fig. 5 is flange plate structure figure.
In figure：1st, armoured thermocouple, 11, vertical component effect, the 12, first bending part, 13, first connecting portion, the 14, second bending
Portion, 15, thermometric portion；
2nd, terminal box, 21, junction block, 22, lifting lug；
3rd, support tube, 31, thermocouple fixing device, 311, flange adjusting set, 312, terminal pad, 313, ring flange, 314,
First locking nut, the 315, second locking nut, 316, baffle ring, 317, protective case fix disk；
4th, protective cover for thermocouple, 41, accommodating chamber；
5 heat insulations；
6th, high temperature gasket；
7th, oscillating mode refractory brick.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 4, a kind of thermocouple for being used to measure molten tin bath temperature in float glass smelting kiln of the invention
Device, including：For carrying out the armoured thermocouple 1 of temperature survey, inside be equipped with junction block 21 for armoured thermocouple 1 to be measured
Temperature output terminal box 2 and the support tube 3 that is connect with terminal box 2, armoured thermocouple 1 be placed in the support tube 3, such as
Two thermo wires of armoured thermocouple shown in Fig. 4 are electrically connected with junction block 21 and (one group of armoured thermocouple are shown in figure), under support tube 3
End is also associated with protective cover for thermocouple 4 and the heat insulation 5 being placed between support tube 3 and protective cover for thermocouple 4 made of graphite,
Have on protective cover for thermocouple 4 accommodating chamber 41, the thermometric end of armoured thermocouple 1 passed through after being stretched out from the lower port of support tube 3 every
Heat block 5 is placed in accommodating chamber 41.Specifically, 3 lower end of support tube has and is fixed for fixing the protective case of protective cover for thermocouple 4
Disk 317, it can be annulus plate-like knot being integrally machined with support tube 3 or being welded on 3 lower end of support tube that protective case, which fixes disk 317,
Structure, heat insulation 5 and protecting tube 4 are fixed on protection pipe by multiple bolts and fix on disk 317, further, in order to subtract
The protective case that thermocouple is transferred heat to by bolt less is fixed on disk, can be equipped between bolt and fixed disk collet and
The structures such as heat insulating mattress.The thermometric end of armoured thermocouple 1 is placed in thermoelectricity after the lower port stretching of support tube 3 across heat insulation 5
In even protective case 4 in the accommodating chamber 41 of blind hole structure.In use, which is suspended on the upper of tin liquor in glass-melting furnace
Side, graphite protective sleeve, apart from certain distance, since graphite protective sleeve is into disc-shaped structure, have larger heating surface with tin liquor
The heat of tin liquor, can be rapidly transmitted to the thermometric end of thermocouple in order to measure the temperature of smelting furnace, due to graphite by product
Chemical property torpescence, at high temperature will not be mutual with the glass solution in glass melter and tin liquor steam and protective gas
Infiltration, both eliminated leads to thermocouple break using common thermocouple for being easily corroded when measuring temperature in glass melter
The problem of, also avoid glass solution and the tin liquor contaminated problem when thermocouple is corroded.Simultaneously because graphite is with good
Good heat conduction and electric conductivity can rapidly communicate the temperature to the thermometric end of thermocouple.
Protective cover for thermocouple 4 is cylinder, and heat insulation 5 is cylinder.Accommodating chamber 41 on protective cover for thermocouple 4 can be
Along the blind hole structure of its axial direction processing, in the direct vertical insertion accommodating chamber 41 of thermometric end of armoured thermocouple 1, but this
The depth that kind of structure may be inserted into due to being inserted into the thermometric end of armoured thermocouple is too small and causes temperature measurement accuracy not high or hot sound
It is long between seasonable.Simultaneously in order to ensure that thermometric end and accommodating chamber can contact closely, accommodating chamber needs higher machining accuracy.
Preferably, accommodating chamber 41 is in the blind of the side upper edge of the protective cover for thermocouple 4 its radial direction level processing
Hole since graphite is the isotope of carbon, has lamellar structure, and accommodating chamber 41 is processed along the radial direction of protective cover for thermocouple 4,
I.e. so that accommodating chamber is processed along the lamella direction of graphite, difficulty of processing can be reduced, reduces processing cost, ensure processing essence
Degree.Armoured thermocouple 1 is bent and forms vertical component effect 11, the first bending part 12, first connecting portion 13,14 and of the second bending part
Thermometric portion 15, vertical component effect 11 is placed in support tube 3 and the upper end and is electrically connected with the junction block 21 in terminal box 2, under vertical component effect 11
End is bent to form the first bending part 12, and 12 other end of the first bending part and first connecting portion 13 connect, the first bending part 12 and the
One connecting portion 13 is placed in heat insulation 5, and 13 other end of first connecting portion is bent to form the second bending part 14, and the second bending part 14 is another
One end is thermometric portion 15, and thermometric portion 15 is horizontal to be placed in accommodating chamber 41, is built-in with the thermometric member for carrying out temperature survey
Part can measure the temperature in protective cover for thermocouple 4 and then obtain the temperature of molten tin bath in glass melter.Due to protective cover for thermocouple 4
For cylinder, with larger end face, more heat, radial direction of the accommodating chamber 41 along protective cover for thermocouple 4 can be received
Direction processes, and can so that protective cover for thermocouple 4 is smaller with deeper accommodating chamber 41 in thickness, increase armouring heat
1 thermometric end of galvanic couple and the contact area of accommodating chamber 41 improve the response time, while the position of accommodating chamber 41 can be protected with thermocouple
The lower face (temperature surface) of sheath 4 is relatively near, further improves response time and temperature measurement accuracy.Armoured thermocouple 1 is in the second bending
There are certain residual stress in 14 bending process of portion, and when it carries out temperature survey, the residual stress of the second bending part 14 is released
Putting can so that 14 both ends of the second bending part carry out certain rebound, thermometric end 15 under rebound effect can closely with receiving
The contact of 41 wall surface of chamber, due to having screen resilience at the second bending 14, can reduce accommodating chamber 41 to ensure the accuracy of thermometric
Machining accuracy and there is thermometric end 15 and accommodating chamber 41 and preferably contact effect.
Further, as shown in Figure 1 and Figure 5, the top of support tube 3 has external screw thread, also has thermocouple on support tube 3
Fixing device 31, thermocouple fixing device 31 include being threaded in flange adjusting set 311 on the support tube 3, with it is described
The terminal pad 312 and the ring flange 313 being connect with the terminal pad 312 that flange adjusting set 311 is structure as a whole.Flange is adjusted
There is internal thread structure for being connect with the external screw thread on 1 outer wall of support tube in set 311, terminal pad 312 can be and flange tune
Section 311 structures being integrally machined of set or the structure (being welding structure in figure) welded together.Terminal pad 312 passes through
Bolt links together with ring flange 313, and rotation flange adjusting set 311 can be fixed on regulating flange disk 313 on support tube 3
Position, ring flange 313 are fixedly connected with glass melter, in the present embodiment, as shown in figure 5, ring flange 313 is rectangular knot
Structure can easily change the lower face (temperature surface) of protective cover for thermocouple 4 apart from molten tin bath by regulating flange adjusting set 311
Distance is to adapt to different thermometric demands.In order to increase the performance that is connected firmly of thermocouple fixing device 31 and support tube 3, in method
The upper end of blue adjusting set 311 also has at least one first locking nut 314.Also there is high temperature gasket in 313 lower end of ring flange,
High temperature gasket is made of aluminium silicate wool, it is possible to reduce the heat in gap scatters and disappears, while can also between thermocouple and smelting furnace
Reduce the heat being transmitted to by furnace wall on thermocouple.
Further, for the ease of support tube 3 and terminal box 2 connection and replace armoured thermocouple 1, support tube 3 with
Terminal box 2 is also equipped at least one second locking nut 315 to increase using being threadedly coupled, in support tube 3 and 2 junction of terminal box
Its strong switching performance.
Further, 5 material of heat insulation is aluminium silicate wool, and aluminium silicate wool has stronger corrosion-resistant, heat-insulated and anti-
High-temperature behavior, you can to reduce the heat that protective cover for thermocouple 4 is transmitted on support tube 3, also reduce the heat in armoured thermocouple 1
Amount is scattered and disappeared.
Further, the upper of the support tube 3 also has baffle ring 316, and polylith oscillating mode refractory brick is placed on baffle ring 316
7, the thermocouple on smelting furnace can be detected by mouth by baffle ring and refractory brick and sealed, excessive heat is avoided to overflow from the detection mouth
Go out.
Further, as shown in figure 3, also having lifting lug 22 in terminal box 2, lifting lug 22 can be used for carrying out thermocouple
It is mobile, facilitate the installation and use of thermocouple.
Armoured thermocouple is even for armouring K in thermocouple assembly in the present invention, and the armouring material of outer end is inconel
(Inconel600), support tube, the first locking nut, the second locking nut and thermocouple fixing device use austenite chromium
Nickel and stainless steel (310S stainless steels).
The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality
Novel technical solution and its inventive concept is subject to equivalent substitution or change, should all cover the scope of protection of the utility model it
It is interior.
Claims (10)
1. it is a kind of for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, including：For carrying out temperature survey
Armoured thermocouple (1), inside are equipped with junction block (21) for the terminal box (2) of temperature output for measuring the armoured thermocouple
And the support tube (3) being connect with the terminal box (2), the armoured thermocouple (1) are placed in the support tube (3), it is special
Sign is：Support tube (3) lower end is connected with the protective cover for thermocouple made of graphite (4) and is placed in the support tube (3)
Heat insulation (5) between the protective cover for thermocouple (4) has accommodating chamber (41) on the protective cover for thermocouple (4), described
The thermometric end of armoured thermocouple (1) is placed in described after the lower port stretching of the support tube (3) across the heat insulation (5)
In accommodating chamber (41).
2. according to claim 1 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：The protective cover for thermocouple (4) is cylinder, and the heat insulation (5) is cylinder, and the accommodating chamber (41) is in the heat
The blind hole of the side upper edge of galvanic couple protective case (4) its radial direction level processing, the armoured thermocouple (1) is including vertical component effect
(11), the first bending part (12), first connecting portion (13), the second bending part (14) and thermometric portion (15), the vertical component effect (11)
It is placed in support tube (3), the first bending part (12) both ends connect respectively with the vertical component effect (11) and first connecting portion (13)
It connects, first bending part (12) and the first connecting portion (13) are placed in the heat insulation (5), second bending part
(14) it connects the first connecting portion (13) and the thermometric portion (15), the thermometric portion (15) is placed in the accommodating chamber (41)
In.
3. according to claim 1 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：Also there is thermocouple fixing device (31), the top of the support tube (3) has external screw thread, described on the support tube (3)
Thermocouple fixing device (31) includes the flange adjusting set (311) being threaded on the support tube (3) and the flange tune
Section set (311) terminal pad (312) being structure as a whole and the ring flange (313) being connect with the terminal pad (312).
4. according to claim 3 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：Ring flange (313) lower end is also equipped with high temperature gasket (6), and the material of the high temperature gasket (6) is aluminium silicate wool.
5. according to claim 3 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：The thermocouple fixing device (31) further includes at least one first locking for being placed in flange adjusting set (311) upper end
Nut (314).
6. according to claim 4 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：The support tube (3) is threadedly coupled with the terminal box (2), and the support tube (3) and the terminal box (2) junction are also
It is equipped at least one second locking nut (315).
7. according to claim 5 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：Heat insulation (5) material is aluminium silicate wool.
8. according to claim 6 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：The upper of the support tube (3) also has baffle ring (316).
9. according to claim 8 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：Oscillating mode refractory brick (7) is also equipped on the baffle ring (316).
10. according to claim 1 for measuring the thermocouple assembly of molten tin bath temperature in float glass smelting kiln, feature exists
In：Also there is lifting lug (22) on the terminal box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721517385.4U CN207528359U (en) | 2017-11-14 | 2017-11-14 | A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721517385.4U CN207528359U (en) | 2017-11-14 | 2017-11-14 | A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln |
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| Publication Number | Publication Date |
|---|---|
| CN207528359U true CN207528359U (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721517385.4U Active CN207528359U (en) | 2017-11-14 | 2017-11-14 | A kind of thermocouple assembly for being used to measure molten tin bath temperature in float glass smelting kiln |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489626A (en) * | 2017-11-14 | 2018-09-04 | 久茂自动化(大连)有限公司 | A kind of thermocouple assembly for measuring molten tin bath temperature in float glass smelting kiln |
| CN108680270A (en) * | 2018-07-20 | 2018-10-19 | 久茂自动化(大连)有限公司 | A kind of temperature measuring equipment for tin bath in floating glass production line bottom surface |
-
2017
- 2017-11-14 CN CN201721517385.4U patent/CN207528359U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489626A (en) * | 2017-11-14 | 2018-09-04 | 久茂自动化(大连)有限公司 | A kind of thermocouple assembly for measuring molten tin bath temperature in float glass smelting kiln |
| CN108489626B (en) * | 2017-11-14 | 2024-05-31 | 久茂自动化(大连)有限公司 | Thermocouple device for measuring tin bath temperature in float glass melting furnace |
| CN108680270A (en) * | 2018-07-20 | 2018-10-19 | 久茂自动化(大连)有限公司 | A kind of temperature measuring equipment for tin bath in floating glass production line bottom surface |
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