CN109632120A - A method of fixing thermocouple into steel structure member - Google Patents
A method of fixing thermocouple into steel structure member Download PDFInfo
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- CN109632120A CN109632120A CN201910141541.9A CN201910141541A CN109632120A CN 109632120 A CN109632120 A CN 109632120A CN 201910141541 A CN201910141541 A CN 201910141541A CN 109632120 A CN109632120 A CN 109632120A
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- fixation hole
- steel
- thermocouple
- hole
- diameter
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The method that present disclose provides a kind of to fix thermocouple into steel structure member, includes the steps of determining that point position；Fixation hole is bored in point position, fixed hole diameter is greater than the diameter 1-3mm of thermocouple probe；Thermocouple probe is put into fixation hole；It uniformly punchinges around the fixation hole, makes steel from the four circumferential fixation hole flowings, thermocouple probe is subjected to extruding fixation.Using the fixed thermocouple probe of this kind of method, can accurately measure the temperature field of any position in steel construction, it is small to the damage of steel member and thermocouple, have many advantages, such as it is easy to operate, do not limited by point position, precision it is high.
Description
Technical field
The technical field this disclosure relates to which building structure is prevented and reduced natural disasters, it is anti-or performance under fire suitable for construction steel structure
Studying technological domain, and in particular to a method of thermocouple is fixed into steel structure member.
Background technique
Disclosing the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without certainty
It is considered as recognizing or implying in any form that information composition has become existing skill well known to persons skilled in the art
Art.
Construction steel structure convenient, lighter weight advantage with site operation, occupies in present building structure field
Sizable use ratio is especially often designed so that use in the structure of some Super Highs and large span.But steel knot
Structure has brought huge destruction after meeting with fire, as a result, material property, structure of the steel construction under high temperature of fire
Reaction and the distribution in temperature field etc. cause major colleges and universities and the development test of scientific research personnel.Work as in steel construction fire test
In, the distribution for measuring some point temperature in a fire in steel construction is a very important content.
The temperature for mainly measuring a certain measuring point using thermocouple probe at present, in steel construction fire test
The main method of fixed thermocouple probe is by the way of welding, inventors have found that the mode of this fixed thermocouple has very
More shortcomings, as follows: 1. welding temperature is too high is easy to damage thermocouple itself, and thermocouple sensitivity is caused to be dropped
It is low；2. welding can cause to damage to the steel at measuring point；3. such as the significant points such as node not only welding difficulty it is also possible to shadow
Ring test result；4. inaccurate for the measurement in the temperature field of measuring point.
Summary of the invention
For above-mentioned the technical problems existing in the prior art, purpose of this disclosure is to provide a kind of into steel structure member
The method of fixed thermocouple.Using the fixed thermocouple probe of this kind of method, any position in steel construction can be accurately measured
Temperature field, it is small to the damage of steel member and thermocouple, have many advantages, such as it is easy to operate, do not limited by point position, precision it is high.
In order to solve problem above, the technical solution of the disclosure are as follows:
A method of it fixing thermocouple into steel structure member, includes the following steps:
Determine point position；
Fixation hole is bored in point position, fixed hole diameter is greater than the diameter 1-3mm of thermocouple probe；
Thermocouple probe is put into fixation hole；
Uniformly punching around the fixation hole, make steel from the four circumferential fixation holes flowings, by thermocouple probe into
Row, which squeezes, to be fixed.
The disclosure has the beneficial effect that
Since the diameter of thermocouple probe is smaller, the diameter of fixation hole is smaller, uniformly punchinges when around fixation hole, makes steel
When material carries out squeezing fixed to fixation hole flowing, the size punchinged is smaller, can significantly reduce the damage to steel construction, and due to
Area required for operating is smaller, smaller to the position restriction of steel member measuring point.
It flows steel to fixation hole, makes full use of the material property of steel itself that thermocouple probe is fixed, no
Thermocouple itself can be damaged, will not influence the sensitivity of thermocouple；
Deformed steel are fixed from four in face of thermocouple probe, and the shaking of thermocouple probe can be effectively prevented,
Effectively improve the fixed fastness of thermocouple probe.
Detailed description of the invention
The Figure of description for constituting a part of this disclosure is used to provide further understanding of the disclosure, and the disclosure is shown
Meaning property embodiment and its explanation do not constitute the improper restriction to the disclosure for explaining the disclosure.
Fig. 1 is the structural schematic diagram of the chisel in the disclosure in one or more embodiments；
Fig. 2 is the structural schematic diagram of the extruded segment in the disclosure in one or more embodiments；
Fig. 3 is to carry out squeezing fixed schematic diagram to thermocouple probe in the embodiment of the present disclosure 1；
Fig. 4 is to carry out squeezing fixed signal to thermocouple probe using chisel in one or more embodiments in the disclosure
Figure.
Fig. 5 is to carry out squeezing fixed schematic diagram to thermocouple probe in embodiment 2 in the disclosure；
Fig. 6 is to carry out squeezing fixed schematic diagram to thermocouple probe in embodiment 3 in the disclosure；
Fig. 7 is the structure chart of thermocouple.
Wherein, 1, tip, 2, extruded segment, 3, changeover portion, 4, body section, 5, fixation hole, 6, extruded hole, 7, probe.
Specific embodiment
It is noted that described further below be all exemplary, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
A method of it fixing thermocouple into steel structure member, includes the following steps:
Determine point position；
Fixation hole is bored in point position, fixed hole diameter is greater than the diameter 1-3mm of thermocouple probe；
Thermocouple probe is put into fixation hole；
Uniformly punching around the fixation hole, make steel from the four circumferential fixation holes flowings, by thermocouple probe 7 into
Row, which squeezes, to be fixed.
Thermocouple is common temperature element in temperature measuring instrument, it directly measures temperature, and temperature signal is converted
At thermo-electromotive force signal, it is converted into the temperature of measured medium by electric meter, is usually protected by thermode (probe), insulation sleeve
The major parts composition such as pipe and terminal box, usually matches with display instrument, recording apparatus and electronic controller.In the disclosure
The structure of the thermocouple used is as shown in fig. 7, its 7 part of probe is used to be inserted into inside steel construction, for detecting inside steel
Temperature.
Since the diameter of thermocouple probe 7 is smaller, the diameter of fixation hole is smaller, uniformly punchinges, makes when around fixation hole
When steel carry out squeezing fixed to fixation hole flowing, the size punchinged is smaller, can significantly reduce the damage to steel construction, and by
The area required for operating is smaller, smaller to the position restriction of steel member measuring point.
It flows steel to fixation hole, makes full use of the material property of steel itself that thermocouple probe is fixed, no
Thermocouple itself can be damaged, will not influence the sensitivity of thermocouple；
Deformed steel are fixed thermocouple probe from surrounding, and the shaking of thermocouple probe can be effectively prevented,
Effectively improve the fixed fastness of thermocouple probe.
In some embodiments, the diameter of the fixation hole is 1-3mm bigger than the diameter of thermocouple probe.Facilitate thermocouple suitable
Benefit insertion, the diameter of fixation hole is excessive, it is subsequent punching squeeze steel when, be difficult to fix thermocouple probe, tap squeeze
The process of steel is also difficult to operate.Bore diameter is too small, and thermocouple is not easy to be inserted into fixation hole, be easy to cause thermocouple that shape occurs
Become, is not easy to be fixed in fixation hole.
In some embodiments, the depth of the fixation hole is greater than the half of steel member thickness of steel product.It can make heat in this way
Galvanic couple gos deep into inside steel, to can detect to obtain the actual temperature inside steel during the test.
Further, the fixation hole is non-through hole.Through hole refers to the hole for penetrating steel member two sides, and fixation hole is set
It is set to non-through hole, thermocouple can be goed deep into inside steel, and steel member will not be exposed, convenient for the reality inside measurement steel
Temperature, the temperature for reducing external environment have an adverse effect to thermocouple testing result, to improve the accuracy of detection.
In some embodiments, the position punchinged is 1.5-2.5mm at a distance from fixed bore edges.If apart from mistake
Greatly, slight flow occurs for the steel of percussion, can not influence fixation hole, and then is difficult to generate squeezing effect to thermocouple probe,
It is difficult to realize the fixation to thermocouple probe.If the extrusion deformation that steel flowing generates is excessive apart from too small, thermocouple can be produced
Life is compared with macrolesion.Moreover, apart from it is too small when, during punchinging, chisel is easy to touch thermocouple probe, also be easy to thermocouple
It causes to damage, influences the accuracy of thermocouple detection.
In some embodiments, the depth punchinged is 1.5-3mm.Depth of the depth punchinged no more than fixation hole.Chisel
The depth in hole is excessively shallow, and chisel can slide in operating process, not easy to operate；Depth of punchinging is too deep, can be to the steel around hole
Material generates biggish damage, if larger to steel damage, the real reaction of steel member just has bigger difference in fire, influences
Test result.
In some embodiments, the direction punchinged is tilted towards fixation hole direction.It is easier to generate steel in this way
Deformation, it is easier to clamp thermocouple probe.
Further, the angle between the direction punchinged and the central axes of fixation hole is 10-30 °, as shown in Figure 4.
In some embodiments, for the tool that the step of punchinging uses for chisel, structure is as depicted in figs. 1 and 2, described
Chisel includes tip 1, extruded segment 2, changeover portion 3 and body section 4, and extruded segment 2 is semi-cylindrical in configuration, diameter of section 1-2mm；Point
End 1 is set to one end of extruded segment 2, and the other end of extruded segment 2 is connect by changeover portion 3 with body section 4, and the changeover portion 3 is
The miner diameter end of round estrade structure, round estrade structure is connect with extruded segment 2, and bigger diameter end is connect with body section 4.
Tip 1 makes chisel be easier to enter in steel, when punchinging, makes the cambered surface of extruded segment 2 towards fixation hole 5, squeezes
The plane of section 2 can generate biggish squeezing effect to steel, generate steel preferable backwards to fixation hole 5, the cambered surface of semi-cylindrical
Flow effect, realize clamping to thermocouple probe.
Further, when punchinging, the cambered surface of extruded segment is towards fixation hole 5.
In some embodiments, the quantity punchinged is 3-6, and hole is uniformly arranged on the surrounding of fixation hole along annular.Chisel
The quantity in hole is very few, and thermocouple is easy to cause to be not fixed firmly because around steel squeeze discontinuity generation shaking.
Embodiment 1
A method of it fixing thermocouple into steel structure member, includes the following steps:
Determine point position；
Fixation hole is bored in point position, the diameter of thermocouple probe is 3mm, fixed hole diameter 5mm, the depth of fixation hole
For 3mm；
Thermocouple probe is put into fixation hole；
It uniformly punchinges around the fixation hole, the cambered surface of chisel is towards fixation hole, and the central axes of chisel and fixation hole
Between angle be 15 °；Make steel from the four circumferential fixation hole flowings, thermocouple probe is subjected to extruding fixation；It punchinges
Quantity is 6, as shown in figure 3, hole is equal with the distance between fixation hole, hole is at a distance from the steel between fixation hole
2mm, the diameter of section of chisel are 1.5mm, and the depth for hole of punchinging is 2mm.
Embodiment 2
A method of it fixing thermocouple into steel structure member, includes the following steps:
Determine point position；
Fixation hole is bored in point position, the diameter of thermocouple probe is 4mm, fixed hole diameter 6mm, the depth of fixation hole
For 4mm；
Thermocouple probe is put into fixation hole；
It uniformly punchinges around the fixation hole, the cambered surface of chisel is towards fixation hole, and the central axes of chisel and fixation hole
Between angle be 20 °；Make steel from the four circumferential fixation hole flowings, thermocouple probe is subjected to extruding fixation；It punchinges
Quantity is 5, as shown in figure 5, hole is equal with the distance between fixation hole, hole is at a distance from the steel between fixation hole
1.5mm, the diameter of section of chisel are 2mm, and the depth for hole of punchinging is 3mm.
Embodiment 3
A method of it fixing thermocouple into steel structure member, includes the following steps:
Determine point position；
Fixation hole is bored in point position, the diameter of thermocouple probe is 2mm, fixed hole diameter 4mm, the depth of fixation hole
For 3mm；
Thermocouple probe is put into fixation hole；
It uniformly punchinges around the fixation hole, the cambered surface of chisel is towards fixation hole, and the central axes of chisel and fixation hole
Between angle be 30 °；Make steel from the four circumferential fixation hole flowings, thermocouple probe is subjected to extruding fixation；It punchinges
Quantity is 3, as shown in fig. 6, hole is equal with the distance between fixation hole, hole is at a distance from the steel between fixation hole
2.5mm, the diameter of section of chisel are 1.5mm, and the depth for hole of punchinging is 2mm.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repair
Change, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. a kind of method for fixing thermocouple into steel structure member, characterized by the following steps:
Determine point position；
Fixation hole is bored in point position, fixed hole diameter is greater than the diameter 1-3mm of thermocouple probe；
Thermocouple probe is put into fixation hole；
It uniformly punchinges around the fixation hole, makes steel from the four circumferential fixation hole flowings, thermocouple probe is squeezed
Pressing is fixed.
2. according to the method described in claim 1, it is characterized by: the diameter of the fixation hole is bigger than the diameter of thermocouple probe
1-3mm。
3. according to the method described in claim 1, it is characterized by: the depth of the fixation hole is greater than steel member thickness of steel product
Half.
4. according to the method described in claim 3, it is characterized by: the fixation hole is non-through hole.
5. according to the method described in claim 1, it is characterized by: the position punchinged is at a distance from fixed bore edges
1.5-2.5mm。
6. according to the method described in claim 1, it is characterized by: the depth punchinged is 1.5-3mm.
7. according to the method described in claim 1, it is characterized by: the direction punchinged is dug towards the inclination of fixation hole direction
Angle between the direction in hole and the central axes of fixation hole is 10-30 °.
8. according to the method described in claim 1, it is characterized by: the tool that uses of the step of punchinging for chisel, the chisel
Attached bag includes tip, extruded segment, changeover portion and body section, and extruded segment is semi-cylindrical in configuration, diameter of section 1-2mm；Tip setting
In one end of extruded segment, the other end of extruded segment is connect by changeover portion with body section, and the changeover portion is round estrade structure, circle
The miner diameter end of platform body structure is connect with extruded segment, and bigger diameter end is connect with body section.
9. according to the method described in claim 1, it is characterized by: when punchinging, the cambered surface of extruded segment is towards fixation hole.
10. according to the method described in claim 1, hole is uniformly set along annular it is characterized by: the quantity punchinged is 3-6
It is placed in the surrounding of fixation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910141541.9A CN109632120A (en) | 2019-02-26 | 2019-02-26 | A method of fixing thermocouple into steel structure member |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910141541.9A CN109632120A (en) | 2019-02-26 | 2019-02-26 | A method of fixing thermocouple into steel structure member |
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| CN109632120A true CN109632120A (en) | 2019-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383745A (en) * | 2021-12-30 | 2022-04-22 | 华南理工大学 | Method and device for fixing thermocouple inside outer steel plate concrete combined member |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383745A (en) * | 2021-12-30 | 2022-04-22 | 华南理工大学 | Method and device for fixing thermocouple inside outer steel plate concrete combined member |
| CN114383745B (en) * | 2021-12-30 | 2022-10-25 | 华南理工大学 | Method and device for fixing thermocouple inside outer steel plate concrete combined member |
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