CN106768467B - A kind of metal inner surface temperature measurement device and method - Google Patents
A kind of metal inner surface temperature measurement device and method Download PDFInfo
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- CN106768467B CN106768467B CN201510824502.0A CN201510824502A CN106768467B CN 106768467 B CN106768467 B CN 106768467B CN 201510824502 A CN201510824502 A CN 201510824502A CN 106768467 B CN106768467 B CN 106768467B
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Abstract
The present invention relates to technical field of temperature measurement in metal, a kind of metal inner surface temperature measurement device and method are specifically disclosed.It includes tested metal exemplar leading portion and tested metal exemplar back segment that metal exemplar is measured in the device, and the two is mutually fixedly connected by loop screw thread, and is sealed by being tested the plane sealing pad being arranged between metal exemplar leading portion and tested metal exemplar back segment；Thermometric slot is provided in tested metal exemplar leading portion right end face, the aperture on the tested tube wall of metal exemplar leading portion in the axial direction, and aperture is along axis different length or different angle extraction, draw the fibre optic temperature sensor being located in thermometric slot from the aperture of tested metal exemplar leading portion axial direction, and fibre optic temperature sensor is connected through Laser Welding with the connector of fibre optical sensor.The device and method can measure the wall temperature along metal thickness direction, improve accessibility, accuracy and the capability of fast response of tube wall temperature measurement of tube wall temperature measurement.
Description
Technical field
The invention belongs to technical field of temperature measurement in metal, and in particular to a kind of novel metal inner wall temperature measurement device and
Method.
Background technique
Currently, tube wall temperature measurement main method be using patch thermal resistance or thermocouple progress metal inner surface or
The temperature of outer wall measures, and the temperature in metal thickness direction according to acquisition is calculated, also has by the way of drilling, along thickness substantially
Direction arranges that thermocouple carries out thermometric, but this method by drilling depth not know and thermocouple temperature measurement contact point it is not true
Surely certain measured deviation is brought, it is difficult to provide accurate data for metal Thermal Fatigue.
Also, thermocouple sensor occupies certain space, for relatively thin metal be difficult to measure or be difficult into
The measurement of row multilayer.
Summary of the invention
The purpose of the present invention is to provide a kind of novel metal inner wall temperature measurement device and methods, and drilling can be overcome to survey
The uncertainty of amount meets the requirement for metal thickness multilayer thermometric.
Technical scheme is as follows: a kind of novel metal inner wall temperature measurement device, which includes that fiber optic temperature passes
Sensor and measured metal exemplar, wherein being measured metal exemplar includes tested metal exemplar leading portion and tested metal exemplar
Back segment, and the two is mutually fixedly connected by loop screw thread, and by tested metal exemplar leading portion and tested metal exemplar back segment it
Between the plane sealing pad that is arranged be sealed；It is provided with thermometric slot in tested metal exemplar leading portion right end face, in tested gold
Belong to aperture on the tube wall of exemplar leading portion in the axial direction, and aperture makes position along axis different length or different angle extraction
Fibre optic temperature sensor in thermometric slot is drawn from the aperture of tested metal exemplar leading portion axial direction, and optical fiber sensing
Device is connected through Laser Welding with the connector of fibre optical sensor.
Capillary is equipped in aperture in the tested metal exemplar leading portion axial direction, fibre optic temperature sensor is from hair
Tubule is drawn.
The thermometric slot is the concentric circles of different radii, and lays the fiber optic temperature of a multi-measuring point in each concentric circles
Sensor.
The thermometric slot is Archimedian screw laying groove, is arranged in Archimedian screw laying groove single or more
Root fibre optic temperature sensor.
The groove face of the tested metal exemplar leading portion thickness direction and the hole face intersection of axial direction are smooth and hairless
Thorn.
It is filled with and the consistent metal powder of pipe material between the tested metal exemplar leading portion and plane sealing pad
End for fixing optical fiber, but does not change heat transfer property.
A kind of wall temperature measurement method in novel metal, this method specifically comprise the following steps:
Tested metal exemplar is made two sections, and is fixedly connected by loop screw thread by step 1；
Thermometric slot is arranged on the end face of tested metal exemplar section in step 2；
Fibre optic temperature sensor is arranged in tested metal exemplar in step 3, to realize to tested metal exemplar thickness direction
Temperature measurement.
Tested metal exemplar is divided into tested metal exemplar leading portion and tested metal exemplar back segment, is provided between the above two
Plane sealing pad, and be sealed and be fixedly connected by the loop screw thread of same material.
Be provided on the end face being in contact in tested metal exemplar leading portion with tested metal exemplar back segment concentric groove or
Archimedean spiral groove.
The specific steps of the step 3 are as follows: fibre optic temperature sensor is laid in the thermometric slot of tested metal exemplar,
Tested metal exemplar is embedded with capillary, and capillary along axially distinct length or draw at different angle, make to be laid in
Fibre optic temperature sensor in thermometric slot is drawn from capillary, makes company of the fibre optic temperature sensor through Laser Welding and fibre optical sensor
Connector is connected, and the outer wall at capillary extraction with tested metal exemplar is welded and fixed；Intrametallic light is tested using embedment
Fine temperature sensor is realized to the wall temperature measurement along metal thickness direction.
Remarkable result of the invention is: a kind of novel metal inner wall temperature measurement device of the present invention and method, energy
Enough measurements improve accessibility, accuracy and the tube wall temperature measurement that tube wall temperature measures along the wall temperature in metal thickness direction
Capability of fast response.
Detailed description of the invention
Fig. 1 is the apparatus structure that a kind of novel metal inner wall temperature measurement device of the present invention measures metal thickness temperature
Schematic diagram；
Fig. 2 is metal end face thermometric slot structure schematic diagram to be measured in Fig. 1；
In figure: 1, fibre optic temperature sensor；2, capillary；3, fibre optical sensor connector；4, loop screw thread；5, gasket
Piece；6, it is tested metal exemplar leading portion；7, it is tested metal exemplar back segment；8, thermometric slot.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Described as shown in Figure 1, Figure 2, a kind of novel metal inner wall temperature measurement device, the device includes fibre optic temperature sensor 1, hair
Tubule 2, wherein fibre optic temperature sensor 1 is the mode transmission simple optical fiber for being carved with muti-piece temperature-sensitive component, is covered on optical fiber
Temperature-sensitive component can be transmitted to demodulator of PM signal PM with optical fiber with the variation of temperature, and by the variation of temperature, pass through signal solution
It adjusts device to be changed into measurable electric signal and enters acquisition device, realize the measurement of temperature；Being measured metal exemplar includes tested gold
Belong to exemplar leading portion 6 and tested metal exemplar back segment 7, and passes through between tested metal exemplar leading portion 6 and tested metal exemplar back segment 7
Loop screw thread 4 connects, and by plane sealing pad 5 between the two, realizes tested metal exemplar leading portion 6 and tested metal-like
Sealed connection between part back segment 7, wherein tested 6 right end face of metal exemplar leading portion is provided with thermometric slot 8, and thermometric slot is difference
The concentric circles or Archimedian screw laying groove of radius；For the wall temperature measurement of metal wall thickness 2mm or more, each same
The fibre optic temperature sensor 1 of a heart circle piece multi-measuring point of laying；It can be used for single multiple spot for Archimedian screw shape laying groove to survey
The fibre optic temperature sensor 1 of temperature, it is suitable for various wall thickness, it is a to prevent that multifiber can be laid in archimedean spiral groove
The damage of other optical fiber；It is embedded with capillary 2 in tested metal, capillary 2 is along tested 6 axial direction of metal exemplar leading portion
On, it is drawn along axially distinct length or different angle, in different radii concentric circles in tested metal exemplar leading portion 6
Fibre optic temperature sensor 1 is drawn from capillary 2, and connector 3 of the fibre optic temperature sensor 1 through Laser Welding and fibre optical sensor
It is connected, and is welded at 2 extraction of capillary with the outer wall of tested metal exemplar, prevents pipe outward leakage；Alternatively, in tested metal
The aperture of different length or different angle is provided in exemplar along axial direction, from tested metal exemplar between fibre optic temperature sensor 1
The aperture of axial direction is drawn, and connect fibre optic temperature sensor 6 with 3 laser welding of connector of fibre optical sensor；It is tested
The groove face of 6 thickness direction of the metal exemplar leading portion and hole face intersection of axial direction is smooth and impulse- free robustness, before being tested metal exemplar
The loop screw thread 4 being connected between section 6 and tested metal exemplar back segment 7 is consistent with tested metal material；In tested metal exemplar
Plane sealing pad 5 is set between leading portion 6 and tested metal exemplar back segment 7, and close with plane in tested metal exemplar leading portion 6
Filling and the consistent metal powder of pipe material, for fixing optical fiber, but do not change heat transfer property between gasket 5.
A kind of wall temperature measurement method in novel metal, this method specifically comprise the following steps:
Tested metal exemplar is made two sections, and is fixedly connected by loop screw thread by step 1；
Tested metal exemplar is divided into tested metal exemplar leading portion and tested metal exemplar back segment, is provided between the above two
Plane sealing pad, and be sealed and be fixedly connected by the loop screw thread of same material；
Thermometric slot is arranged on the end face of tested metal exemplar section in step 2；
Be provided on the end face being in contact in tested metal exemplar leading portion with tested metal exemplar back segment concentric groove or
Archimedean spiral groove；
Fibre optic temperature sensor is arranged in tested metal exemplar in step 3, to realize to tested metal exemplar thickness direction
Temperature measurement；
Fibre optic temperature sensor is laid in the thermometric slot of tested metal exemplar, is embedded with capillary in tested metal exemplar
Pipe, and capillary is drawn along axially distinct length or different angle, makes the fibre optic temperature sensor being laid in thermometric slot
It is drawn from capillary, fibre optic temperature sensor is made to be connected through Laser Welding with the connector of fibre optical sensor, and drawn in capillary
Locate to be welded and fixed with the outer wall of tested metal exemplar；It is tested intrametallic fibre optic temperature sensor using embedment, is realized to along gold
Belong to the wall temperature measurement of thickness direction.
Claims (7)
1. a kind of metal inner surface temperature measurement device, it is characterised in that: the device includes fibre optic temperature sensor (1) and is measured
Metal exemplar, wherein be measured metal exemplar and include tested metal exemplar leading portion (6) and tested metal exemplar back segment (7), and two
Person is mutually fixedly connected by loop screw thread (4), and by tested metal exemplar leading portion (6) and tested metal exemplar back segment (7) it
Between the plane sealing pad (5) that is arranged be sealed；Thermometric slot (8) are provided in tested metal exemplar leading portion (6) right end face,
The thermometric slot (8) is the concentric circles of different radii, and lays the optical fiber sensing of a multi-measuring point in each concentric circles
Device (1)；The aperture on the tested tube wall of metal exemplar leading portion (6) in the axial direction, and aperture along axis different length or
Different angle is drawn, and makes the fibre optic temperature sensor (1) being located in thermometric slot (8) from tested metal exemplar leading portion axial direction
Aperture is drawn, and fibre optic temperature sensor (1) is connected through Laser Welding with the connector (3) of fibre optical sensor.
2. a kind of metal inner surface temperature measurement device according to claim 1, it is characterised in that: the tested metal exemplar
Capillary (2) are equipped in aperture in leading portion axial direction, fibre optic temperature sensor (1) is drawn from capillary (2).
3. a kind of metal inner surface temperature measurement device according to claim 1, it is characterised in that: the thermometric slot (8) is also
It can be Archimedian screw shape laying groove, single or multifiber temperature sensor is set in Archimedian screw shape laying groove
(1)。
4. a kind of metal inner surface temperature measurement device according to claim 1, it is characterised in that: the tested metal exemplar
The groove face of leading portion (6) thickness direction and hole face intersection of axial direction is smooth and impulse- free robustness.
5. a kind of metal inner surface temperature measurement device according to claim 1, it is characterised in that: the tested metal exemplar
Between leading portion (6) and plane sealing pad (5) filled with the consistent metal powder of pipe material, for fixing optical fiber, but not
Change heat transfer property.
6. a kind of metal inner surface temperature measurement method, it is characterised in that: this method specifically comprises the following steps:
Tested metal exemplar is made two sections, and is fixedly connected by loop screw thread by step 1；
Thermometric slot is arranged on the end face of tested metal exemplar section in step 2；
Concentric groove or A Ji are provided on the end face being in contact in tested metal exemplar leading portion with tested metal exemplar back segment
Mead helicla flute；
Fibre optic temperature sensor is arranged in tested metal exemplar in step 3, to realize the temperature to tested metal exemplar thickness direction
Degree measurement；
Fibre optic temperature sensor is laid in the thermometric slot of tested metal exemplar, is embedded with capillary in tested metal exemplar,
And capillary along axially distinct length or draw at different angle, make the fibre optic temperature sensor being laid in thermometric slot from hair
Tubule draw, so that fibre optic temperature sensor is connected through Laser Welding with the connector of fibre optical sensor, and at capillary extraction and
The outer wall of tested metal exemplar is welded and fixed；It is tested intrametallic fibre optic temperature sensor using embedment, is realized to along metal thickness
Spend the wall temperature measurement in direction.
7. a kind of metal inner surface temperature measurement method according to claim 6, it is characterised in that: the step 1 it is specific
Step are as follows: tested metal exemplar is divided into tested metal exemplar leading portion and tested metal exemplar back segment, is provided between the above two
Plane sealing pad, and be sealed and be fixedly connected by the loop screw thread of same material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824502.0A CN106768467B (en) | 2015-11-24 | 2015-11-24 | A kind of metal inner surface temperature measurement device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510824502.0A CN106768467B (en) | 2015-11-24 | 2015-11-24 | A kind of metal inner surface temperature measurement device and method |
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| Publication Number | Publication Date |
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| CN106768467A CN106768467A (en) | 2017-05-31 |
| CN106768467B true CN106768467B (en) | 2019-09-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008026216A (en) * | 2006-07-24 | 2008-02-07 | Ntn Corp | Inner ring temperature measuring instrument for rolling bearing |
| CN201184822Y (en) * | 2007-12-19 | 2009-01-21 | 贵阳铝镁设计研究院 | Mounting structure for surface thermal resistor on pipe |
| CN102494805A (en) * | 2011-12-31 | 2012-06-13 | 孙景文 | Detection bar used for testing different thickness temperature changes in external wall brick body |
| CN102853938A (en) * | 2012-09-18 | 2013-01-02 | 山东大学 | Engine cylinder cover parameter measuring instrument and method based on optical fiber probe |
| CN104742018A (en) * | 2015-04-09 | 2015-07-01 | 大连理工大学 | Grinding method of controlling grinding parameters |
| CN205280238U (en) * | 2015-11-24 | 2016-06-01 | 核动力运行研究所 | Novel wall temperature measures in metal device |
-
2015
- 2015-11-24 CN CN201510824502.0A patent/CN106768467B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008026216A (en) * | 2006-07-24 | 2008-02-07 | Ntn Corp | Inner ring temperature measuring instrument for rolling bearing |
| CN201184822Y (en) * | 2007-12-19 | 2009-01-21 | 贵阳铝镁设计研究院 | Mounting structure for surface thermal resistor on pipe |
| CN102494805A (en) * | 2011-12-31 | 2012-06-13 | 孙景文 | Detection bar used for testing different thickness temperature changes in external wall brick body |
| CN102853938A (en) * | 2012-09-18 | 2013-01-02 | 山东大学 | Engine cylinder cover parameter measuring instrument and method based on optical fiber probe |
| CN104742018A (en) * | 2015-04-09 | 2015-07-01 | 大连理工大学 | Grinding method of controlling grinding parameters |
| CN205280238U (en) * | 2015-11-24 | 2016-06-01 | 核动力运行研究所 | Novel wall temperature measures in metal device |
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| Publication number | Publication date |
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| CN106768467A (en) | 2017-05-31 |
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