CN209280164U - A kind of thermocouple sheath structure for annealing furnace radiator tubes - Google Patents
A kind of thermocouple sheath structure for annealing furnace radiator tubes Download PDFInfo
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- CN209280164U CN209280164U CN201920275605.XU CN201920275605U CN209280164U CN 209280164 U CN209280164 U CN 209280164U CN 201920275605 U CN201920275605 U CN 201920275605U CN 209280164 U CN209280164 U CN 209280164U
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- thermocouple sheath
- wall
- annealing furnace
- fixinig plate
- card hole
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Abstract
The utility model discloses a kind of thermocouple sheath structures for annealing furnace radiator tubes, including sleeve body and fixinig plate, the fixinig plate is fixed on the tube wall of radiant tube, one end of described sleeve pipe ontology is fixed on the tube wall of radiant tube, card hole structure is equipped in the fixinig plate, the other end of sleeve body is located in card hole structure, has the gap for expanding with heat and contract with cold between the inner wall of card hole and the outer wall of sleeve body.The thermocouple sheath for being used for annealing furnace radiator tubes is reasonable in design, there is gap between fixinig plate and casing, the thermocouple sheath enough surplus capacities of rising-heat contracting-cold therebetween are provided, integral cannula structure designs a fixed solder joint and a sliding point altogether, thermocouple sheath can freely change with temperature change and have constraint support enough, it avoids casing deformation serious, improves its stability in use.
Description
Technical field
The utility model relates to steel to make annealing treatment technical field, more particularly, to a kind of thermoelectricity for annealing furnace radiator tubes
Even cannula structure.
Background technique
The continuous annealing furnace W type radiant tube of cold rolling vertical type is the heating element in annealing furnace, is pacified on the lower branch line of radiant tube
Equipped with thermocouple sheath, for measuring radiant tube temperature in the installation of TC pipe.Common thermocouple sheath material is
X12CrNi25-21, wall thickness 2.35mm;In annealing process, lead to heating temperature because annealing furnace produces steel grade, specification frequently changes
Degree constantly change, thermocouple sheath constantly thermally expand variation, thermocouple sheath during another aspect blow-on with temperature change
It is influenced meeting quick refrigeration by external environment (cold air) to shrink, it is severely deformed even that above situation will cause thermocouple sheath generation
It falls off, it is especially completely negative in production think gauge high-temperature steel because causing actually detected radiant tube temperature relatively low under thermocouple sheath deformation
When carrying heating, ultimately causes radiation tube apparatus burning and radiant tube deformation, cracking failure rate is caused to rise.Radiant tube is expensive about
60000 yuan/root, therefore also cost of equipment maintenance is caused to increase.
Utility model content
It is radiated in view of the shortcomings of the prior art, the technical problem to be solved by the utility model is to provide one kind for annealing furnace
The thermocouple sheath structure of pipe avoids the serious purpose of casing deformation to reach.
In order to solve the above-mentioned technical problem, the technology employed by the present utility model is
This is used for the thermocouple sheath structure of annealing furnace radiator tubes, including sleeve body and fixinig plate, and the fixinig plate is solid
It is scheduled on the tube wall of radiant tube, one end of described sleeve pipe ontology is fixed on the tube wall of radiant tube, and card is equipped in the fixinig plate
The other end of pore structure, sleeve body is located in card hole structure, has between the inner wall of card hole and the outer wall of sleeve body and is used for
The gap expanded with heat and contract with cold.
Further, described sleeve pipe ontology includes thermocouple sheath I and thermocouple sheath II, the thermocouple sheath I
One end is fixed on the tube wall of radiant tube, and the other end of thermocouple sheath I is connected with one end grafting of thermocouple sheath II, described
The other end of thermocouple sheath II is located in the card hole of fixinig plate.
It further include space washer, the space washer is fixed on radiant tube, and space washer is equipped with location hole, casing sheet
Body is weldingly connected across location hole.
The fixinig plate is one group be arranged side by side.
Interstice coverage between the inner wall of the card hole and the outer wall of sleeve body is 0.8-1.2mm.
In one end of the other end insertion thermocouple sheath II of the thermocouple sheath I.
The utility model compared with prior art, has the advantage that
The thermocouple sheath for being used for annealing furnace radiator tubes is reasonable in design, has gap between fixinig plate and casing,
There is provided thermocouple sheath, the enough surplus capacities of rising-heat contracting-cold, integral cannula structure design a fixed solder joint and a cunning altogether therebetween
Dynamic point, thermocouple sheath can freely change and be had with temperature change constraint support enough, avoid casing deformation serious, improve
Its stability in use.
Detailed description of the invention
Content expressed by each width attached drawing of this specification and the label in figure are briefly described below:
Fig. 1 is the utility model thermocouple sheath structural schematic diagram.
Fig. 2 is enlarged diagram at A in Fig. 1.
Fig. 3 is enlarged diagram at B in Fig. 1.
Fig. 4 is enlarged diagram at C in Fig. 1.
In figure:
1. thermocouple sheath I, 2. thermocouple sheaths II, 3. fixinig plates, 4. space washers, 5. radiant tubes.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation.
As shown in Figures 1 to 4, the thermocouple sheath structure for being used for annealing furnace radiator tubes, including sleeve body and fixation
Piece 3 and space washer 4, fixinig plate are fixed on the tube wall of radiant tube 5, and one end of sleeve body is fixed on the tube wall of radiant tube
On, card hole structure is equipped in fixinig plate, the other end of sleeve body is located in card hole structure, the inner wall of card hole and sleeve body
There is the gap for expanding with heat and contract with cold between outer wall.
There is gap between fixinig plate 3 and casing, the thermocouple sheath enough surplus capacities of rising-heat contracting-cold therebetween are provided, it is whole
Cannula structure designs a fixed solder joint and a sliding point altogether, and thermocouple sheath freely can change and have with temperature change
Constraint support enough, avoids casing deformation serious, improves its stability in use.
Space washer 4 is fixed on radiant tube, and space washer is equipped with location hole, and sleeve body passes through location hole and welds phase
Even, fixinig plate is one group be arranged side by side, and the interstice coverage between the inner wall of card hole and the outer wall of sleeve body is 0.8-
1.2mm。
Sleeve body includes thermocouple sheath I 1 and thermocouple sheath II 2, and one end of the thermocouple sheath I is fixed on spoke
It penetrates on the tube wall of pipe, the other end of thermocouple sheath I is connected with one end grafting of thermocouple sheath II, the thermocouple sheath II
The other end be located in the card hole of fixinig plate.Preferably, one end of the other end insertion thermocouple sheath II of thermocouple sheath I
In.
Preferred embodiment are as follows:
Thermocouple sheath structure includes thermocouple sheath I 1, thermocouple sheath II 2, fixinig plate 3 and space washer 4, heat
Thermowell I is inserted into after thermocouple sheath II passes through fixinig plate together, and wherein fixinig plate is set as card hole structure, using argon
On 5 straight pipe wall of radiant tube, integral cannula structure designs a fixed solder joint and a sliding point altogether for arc welding.
Thermocouple sheath material is G-NiCr28W, Cr:27~30%, Ni:47-50%, and wall thickness 3.0mm effectively improves set
Pipe intensity, it is ensured that deformation is effective against in temperature changing process.
Thermocouple sheath I passes through space washer 4, and pad is set as between thermocouple sheath I and space washer 4, guarantees
Bushing head is fixed on radiation tube wall.Preferred orientation washer is square washer.
Fixinig plate is set as card hole structure, supports thermocouple sheath rising-heat contracting-cold between fixinig plate card hole structure interval;In advance
It boxes out to gap 1mm.Fixinig plate material is G-NiCr28W, thickness 4mm, is arranged side by side 8, and average headway 200mm is uniformly distributed, this
Sample provides higher intensity, more supports to thermocouple sheath, effectively avoids fixinig plate intensity and lazy weight from falling off and causes heat
Thermowell falls off problem.
Thermocouple sheath least significant end is changed to sliding point by fixed point herein, and fixed point and card hole support is cooperated to can be realized
Thermocouple sheath free wxpansion in the horizontal direction.The configuration of the present invention is simple can prevent thermocouple sheath in use process from becoming
A series of problems, such as shape problem and detection temperature deviation brought by it, radiation tube body burning, the final radiant tube that improves makes
With the period, there is larger economic value and meaning.
It above are only and preferred embodiments of the present invention are illustrated, above-mentioned technical characteristic can form multiple hairs in any combination
Bright example scheme.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, as long as the improvement for the various unsubstantialities that the conception and technical scheme for using the utility model carry out,
Or it is not improved the conception and technical scheme of the utility model are directly applied into other occasions, in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of thermocouple sheath structure for annealing furnace radiator tubes, including sleeve body and fixinig plate, the fixinig plate is solid
It is scheduled on the tube wall of radiant tube, it is characterised in that: one end of described sleeve pipe ontology is fixed on the tube wall of radiant tube, the fixation
Card hole structure is equipped in piece, the other end of sleeve body is located in card hole structure, the outer wall of the inner wall of card hole and sleeve body it
Between there is gap for expanding with heat and contract with cold.
2. being used for the thermocouple sheath structure of annealing furnace radiator tubes as described in claim 1, it is characterised in that: described sleeve pipe ontology
Including thermocouple sheath I and thermocouple sheath II, one end of the thermocouple sheath I is fixed on the tube wall of radiant tube, thermoelectricity
The other end of even casing I is connected with one end grafting of thermocouple sheath II, and the other end of the thermocouple sheath II, which is located at, to be fixed
In the card hole of piece.
3. being used for the thermocouple sheath structure of annealing furnace radiator tubes as described in claim 1, it is characterised in that: further include locating pad
Circle, the space washer are fixed on radiant tube, and space washer is equipped with location hole, and sleeve body passes through location hole and welds phase
Even.
4. being used for the thermocouple sheath structure of annealing furnace radiator tubes as described in claim 1, it is characterised in that: the fixinig plate is
Arranged side by side one group.
5. as described in claim 1 be used for annealing furnace radiator tubes thermocouple sheath structure, it is characterised in that: the card hole it is interior
Interstice coverage between wall and the outer wall of sleeve body is 0.8-1.2mm.
6. being used for the thermocouple sheath structure of annealing furnace radiator tubes as described in claim 1, it is characterised in that: the thermocouple set
In one end of the other end insertion thermocouple sheath II of pipe I.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920275605.XU CN209280164U (en) | 2019-03-05 | 2019-03-05 | A kind of thermocouple sheath structure for annealing furnace radiator tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920275605.XU CN209280164U (en) | 2019-03-05 | 2019-03-05 | A kind of thermocouple sheath structure for annealing furnace radiator tubes |
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Publication Number | Publication Date |
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CN209280164U true CN209280164U (en) | 2019-08-20 |
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CN201920275605.XU Active CN209280164U (en) | 2019-03-05 | 2019-03-05 | A kind of thermocouple sheath structure for annealing furnace radiator tubes |
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2019
- 2019-03-05 CN CN201920275605.XU patent/CN209280164U/en active Active
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