CN205958128U - Take exploration hole armoured thermocouple - Google Patents
Take exploration hole armoured thermocouple Download PDFInfo
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- CN205958128U CN205958128U CN201620862618.3U CN201620862618U CN205958128U CN 205958128 U CN205958128 U CN 205958128U CN 201620862618 U CN201620862618 U CN 201620862618U CN 205958128 U CN205958128 U CN 205958128U
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- thermocouple
- exploration hole
- armoured thermocouple
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Abstract
The utility model relates to a take exploration hole armoured thermocouple, take exploration hole armoured thermocouple include upper cover, bottom and metal protection pipe, and the metal protection pipe is connected with the bottom, the resistant high -temperature insulating material of metal protection intraduct packing, and it has banding alloys for thermocouple silk and stainless steel tubule just to alternate along the axial, and the alloys for thermocouple silk is paired combination, and conduct measuring junction is together welded on the top of alloys for thermocouple silk, and it is closed that the stainless steel tubule is close to metal protection nose end department, the bottom is inside to be fixed with insulating wiring board, insulating wiring board and metal protection perpendicular connection of pipe, insulating wiring board keep away from the metal protection pipe on be equipped with terminal, entrance hole and exploration hole, the alloys for thermocouple silk communicates through entrance hole and terminal connection, stainless steel tubule and exploration hole. The utility model discloses an industrial production not the dismantling on line to detect and compare of thermocouple for the process has increased substantially operating efficiency and manufacturing process and has measured the technical guarantee ability.
Description
Technical field
This utility model belongs to armoured thermocouple field, is related to a kind of band exploration hole armoured thermocouple.
Background technology
Armoured thermocouple is to be made up of armoured thermocouple cable and termination (as rosette, connector etc.), has energy
Free bend, many advantages, such as high pressure resistant, corrosion-resistant, thermal response time is fast and sturdy and durable, it and industrial assembled thermoelectricity
On a rare occasion sample, as the sensor of measurement temperature, is generally joined by compensating wire and display instrument, recording apparatus and electronic controller
Set uses, meanwhile, armoured thermocouple cable, you can make armoured thermocouple it is also possible to the temperature-sensitive as assembled thermocouple is first
Part.It can with the liquid in the range of -40 DEG C～1200 DEG C, steam and its gas medium in the various production process of direct measurement with
And the temperature of solid or particle suspensions body.
The ultimate principle of thermocouple measuring temperature is pyroelectric effect, the metallic conductor of two kinds of different components is joined end to end and connects
Become closed-loop path, the such as temperature of two contacts, then will produce thermo-electromotive force in the loop, form thermocurrent, here it is hot
Electrical effect.Thermocouple is exactly that two kinds of different metal material one end are welded, and one end of welding is called measurement end, unwelded
One end be called reference edge, reference edge use when generally constant in certain temperature when heating to measurement end, in junction
Thermoelectrical potential is had to produce.As reference junction temperature is constant, size and Orientation only characteristic and the survey with two kinds of metal materials of its thermoelectrical potential
The temperature at amount end is relevant, and unrelated with the fine of gesture galvanic couple and length.After the temperature of measurement end changes, gesture potential also changes therewith
Become, and between temperature and thermoelectrical potential, have a fixing functional relationship, just can be with measurement temperature using this relation.
Either assembled or armored thermocouple, its detection method is in accordance with national metrological verification regulations JJG in heat
Carry out on galvanic couple standard set-up.The temperature calibrating point passing through constant temperature test equipment in regulation obtains thermocouple standard set-up
Measurement result and tested thermocouple measurement result, then thermocouple indexing table is according to both compare, judge qualified with
No.But operation will be carried out in laboratory, it means that need from getting off and can carry out using field stripping.
Traditional armoured thermocouple in use, needs the calibrating week it is necessary to according to regulation because processing quality monitors
Phase, disassemble from process equipment deliver to calibration laboratory carry out detection compare, for scale enterprise, measurement instrument quantity
Greatly, the thermocouple that these equipment install and use is had to lead to not dismantle due to adverse circumstances such as high temperature, high humidity, acid and alkali corrosions, very
Lead to damage to inadequate repeated removal and installation, not only operating personnel's operating difficultiess, labor intensity height, accidental loss increase maintenance
Cost, and usually also can injure operating personnel because of dangerous operation.Based on above-mentioned defect and deficiency, solve thermocouple class
The online non-disassembly of measurement instrument compares problem and is rich in extremely important realistic meaning, has also catered to World Developed Countries and has done
Method, shortens the gap between measurement instrument and advanced management and control method.
Utility model content
The purpose of this utility model is defect and the deficiency overcoming prior art presence, and solving thermocouple temperature sensor makes
With during the difficult problem that compares of online non-disassembly.
For achieving the above object, the technical solution adopted in the utility model includes：
A kind of band exploration hole armoured thermocouple, including rosette and protection metal pipe, rosette is mainly by cooperating
Hemispherical upper lid and hemispherical bottom composition, set out the stylostome of string holes, upper lid and stylostome activity in the connection of bottom edge
Connect, upper lid and bottom lid is respectively equipped with the external part I connecting by clasp and external part II away from the one end being flexibly connected；
Connect column support base at external part II on bottom, support base is fixed with the metal coating of top closure
Pipe, filling high-temperature insulation material inside protection metal pipe, and it is interspersed with thermocouple alloy wire and the rustless steel of strip vertically
Tubule, thermocouple alloy wire is pair-wise combination, and the top of thermocouple alloy wire is welded together as measurement end, rustless steel tubule
Near the closing of protection metal pipe top end；
It is fixed with insulation joint plate, insulation joint plate is vertical with protection metal pipe to be connected, and insulation joint plate is remote inside bottom
It is provided with binding post, entrance hole and exploration hole from the face of protection metal pipe, thermocouple alloy wire is connected with binding post through entrance hole,
Rustless steel tubule is connected with exploration hole.
As preferred technical scheme：
A kind of band exploration hole armoured thermocouple as above, described flexible connection refers to set respectively on lid and stylostome
There are linking arm I and linking arm II, one end of described linking arm I and linking arm II is connected by pin.
A kind of band exploration hole armoured thermocouple as above, described clasp connection refers to be buckled with clasp in external part I, institute
State clasp junction button handle, described external part II is provided with and detains the draw-in groove of handle cooperation.
A kind of band exploration hole armoured thermocouple as above, the upper lid edge of described rosette stretches out a circle sealing
Circle, sealing ring plays waterproof and dustproof effect.
A kind of band exploration hole armoured thermocouple as above, described support base is mutually vertical with the central axis of stylostome
Directly.
A kind of band exploration hole armoured thermocouple as above, described protection metal pipe is the rustless steel of high-temperature corrosion resistance
Pipe, material is 304,316,2520 or 3039 rustless steels；Magnesium oxide that described high-temperature insulation material is more than 96% for purity,
Aluminium oxide or quartz；Described thermocouple alloy wire is Graduation Number is K, N, E, J or T specification alloy material；Described rustless steel tubule
Material is 2520 high temperature resistant stainless steels, and the internal diameter of described rustless steel tubule is 2.0～6.0mm.
A kind of band exploration hole armoured thermocouple as above, described rustless steel tubule is near one end plug of exploration hole
Closing, normal using blocking the mouth of pipe, on-line checking opens plug when comparing, so that the sensor of insertion Compare System is used.
A kind of on-line checking comparison method with exploration hole armoured thermocouple of this utility model, step is as follows：
1) set up detected comparison temp measuring system, band exploration hole armoured thermocouple is inserted and fixed and is arranged on industry heating
On equipment, technical grade temperature control instrument is connected by the technical grade compensating wire through wire hole with binding post；
2) set up reference standard measuring system, reference standard measuring system is connected by I level armoured thermocouple cable, cold end
Device, micron order compensating wire and precision temperature display instrument composition；
3) detection compares detected comparison temp measuring system, opens the upper lid with exploration hole armoured thermocouple, by I level armouring heat
Galvanic couple cable, from the exploration hole insertion rustless steel tubule insulation joint plate, is inserted into bottom, isothermal 15～20 minutes always, observes
Precision temperature display instrument last figure tends towards stability, and records precision temperature display instrument and the corresponding number of technical grade temperature control instrument
Value tStandardAnd tTested, calculate detected actual error value △ comparing temp measuring systemTested：
△Tested=tTested- tActual=tTested- (tStandard+A)
In formula：tActualFor the actual temperature value of industry heating facility, A is correction value；
Calculate detected allowable error value △ comparing temp measuring systemPermit：
△Permit=【U2 Even+U2 Line+U2 Table】-1/2
In formula：U2 Even- the allowable error with exploration hole armoured thermocouple；U2 LineThe allowable error of-technical grade compensating wire；
U2 TableThe allowable error of-technical grade temperature control instrument；
Relatively numerical value, if △Tested＜ △Permit, then it is detected comparison temp measuring system qualified；If △Tested≥△Permit, then do not conform to
Lattice.
A kind of on-line checking comparison method with exploration hole armoured thermocouple as above, described precision temperature display instrument
Last figure tends towards stability and refers to that numeral rises slowly, and pace of change is less than or equal to 2 word/min.
During practical application, it is first turned on rosette, external connecting leads are connected to by the wire hole of rosette bottom
Then outer lead is connected temperature controller by the binding post on insulation joint plate.When on-line checking compares, will be accurate in advance
The I level armoured thermocouple temperature sensor of the reference standard temp measuring system got ready, is protected by the exploration hole insertion metal on insulation joint plate
The inside rustless steel tubule of pillar, depth, until thermocouple wire top pad (measurement end) position is close, thus can be led to
Cross the measurement result of reference standard temp measuring system and the detected measuring system measurement result comparing directly is compared, finally real
The on-line checking of not dismantling of existing industry thermometric scene temperature detecting system compares.
Beneficial effect：
1) of the present utility model achieve the online of industrial manufacturing process thermocouple with exploration hole armoured thermocouple and do not tear open
Unload detection to compare, improve Process Quality Control level and measurement technology supportability, working performance is greatly improved；
2) this utility model significantly reduces operating personnel's labor intensity, reduces repeated removal and installation and the unexpected damage of transport
The bad economic loss causing.
Brief description
Fig. 1 is the structural representation with exploration hole armoured thermocouple；
Fig. 2 is the A-A ' schematic cross-section of protection metal pipe in Fig. 1；
Fig. 3 is the corresponding B of Fig. 1 to schematic diagram；
Fig. 4 is band exploration hole armoured thermocouple monnolithic case schematic diagram；
Fig. 5 is that the on-line checking with exploration hole armoured thermocouple compares schematic diagram；
In figure, 1- protection metal pipe, 2- thermocouple alloy wire, 3- high-temperature insulation material, 4- rustless steel tubule, 5- detects
Hole, 6- insulation joint plate, 7- binding post, 8- bottom, 9- covers, 10- clasp, 11- detains handle, 12- wire hole, 13- technical grade
Compensating wire, 14- technical grade temperature control instrument, 15-I level armoured thermocouple, 16- cold end adapter, 17- micron order compensates and leads
Line, 18- precision temperature display instrument, 19- industry heating facility.
Specific embodiment
This utility model is expanded on further below in conjunction with the accompanying drawings.It should be understood that these embodiments are merely to illustrate this practicality newly
Type rather than restriction scope of the present utility model.In addition, it is to be understood that after having read the content of this utility model instruction, this
Skilled person can make various changes or modifications to this utility model, and these equivalent form of values equally fall within the appended power of the application
Sharp claim limited range.
One kind carries exploration hole armoured thermocouple as shown in Figure 1 and Figure 4, including rosette and protection metal pipe 1, rosette master
To be made up of the hemispherical upper lid 9 cooperating and hemispherical bottom 8, upper lid 9 edges stretch out a circle sealing ring, bottom 8
Set out the stylostome of string holes 12 in edge's connection, upper lid 9 and stylostome are respectively equipped with linking arm I and linking arm II, connect
One end of arm I and linking arm II is connected by pin, and upper lid 9 and bottom 8 are respectively equipped with external part I away from the one end being flexibly connected
With external part II, in external part I, it is buckled with clasp 10, clasp 10 junction button handle 11, external part II is provided with and detains handle 11 and join
The draw-in groove closing；Column support base is connected at external part II on bottom 8, support base is mutually vertical with the central axis of stylostome
Directly, support base is fixed with the protection metal pipe 1 of top closure, the structure of protection metal pipe 1 is as shown in Fig. 2 protection metal pipe 1
Material is 304 rustless steels, the internal filling high-temperature insulation material 3 of protection metal pipe 1, and high-temperature insulation material 3 for purity is
96% magnesium oxide, is interspersed with thermocouple alloy wire 2 and the rustless steel tubule 4 of strip, thermocouple vertically in protection metal pipe 1
B alloy wire 2 is Graduation Number is K specification alloy material, and thermocouple alloy wire 2 is pair-wise combination, and top is welded together as measuring
End, the internal diameter of rustless steel tubule 4 is 5.0mm, and material is 2520 high temperature resistant stainless steels, and rustless steel tubule 4 is near protection metal pipe 1
Top end is closed；Bottom 8 internal structure as shown in figure 3, being fixed with insulation joint plate 6 inside bottom 8, insulation joint plate 6 and gold
Belong to protection pipe 1 vertically to connect, insulation joint plate 6 is provided with binding post 7, entrance hole and exploration hole away from the face of protection metal pipe 1
5, thermocouple alloy wire 2 is connected with binding post 7 through entrance hole, and rustless steel tubule 4 is connected with exploration hole 5.
The normal using method of this utility model identical with traditional armoured thermocouple it is only necessary to by technical grade compensating wire 13 just
Negative pole is correctly connected on corresponding binding post 7, then draws from wire hole 12 and is connected to remote temperature controller
Table.Except that, send test in laboratory ratio when needing to carry out periodic verification calibration it is no longer necessary to disassemble
Right.But adopting on-line checking Comparison Method, concrete operational method is as described below to (its principle is as shown in Figure 5)：
1) set up detected comparison temp measuring system, band exploration hole armoured thermocouple is inserted and fixed and is arranged on industry heating
On equipment 19, technical grade temperature control instrument 14 is connected by the technical grade compensating wire 13 through wire hole 12 with binding post 7,
Constitute detected comparison temp measuring system；
2) set up reference standard temp measuring system, by I level armoured thermocouple cable 15 (temperature-sensitive armouring body), cold end adapter
16th, micron order compensating wire 17 and precision temperature display instrument 18 form；
3) by I level armoured thermocouple cable 15 (temperature-sensitive armouring body), cold end adapter 16, micron order compensating wire 17 and essence
The reference standard temp measuring system of close temperature indicator 18 composition, enterprising in the First class standard thermocouple standard set-up of laboratory in advance
Row calibrating, obtains correction value A of each temperature test point, to carry out error correction when on-line checking compares；
4) open the upper lid 9 with exploration hole armoured thermocouple, by I level armoured thermocouple cable 15 from insulation joint plate 6
Exploration hole 5 insertion rustless steel tubule 4 in, be inserted into bottom always；
5) isothermal 20 minutes, observe precision temperature display instrument 18 last figure and tend towards stability, that is, pace of change be 2 words/
Min, record precision temperature display instrument 18 and the corresponding numerical value t of technical grade temperature control instrument 14StandardAnd tTested；
5) calculate detected actual error value △ comparing temp measuring systemTested：
△Tested=tTested- tActual=tTested- (tStandard+A)
In formula：tActualFor the true temperature value of industry heating facility 19, A is correction value；
6) judge that whether qualified the detected temp measuring system that compares is, carry out data and compare, △Tested＜ △Permit, then qualified, △Tested≥
△Permit, then unqualified, wherein：
△Permit=【U2 Even+U2 Line+U2 Table】-1/2
In formula：△Permit- detected allowable error the value comparing temp measuring system, U2 Even- the permission with exploration hole armoured thermocouple
Error；U2 LineThe allowable error of-technical grade compensating wire 13；U2 TableThe allowable error of-technical grade temperature control instrument 14.
Claims (7)
1. a kind of band exploration hole armoured thermocouple, is characterized in that：Including rosette and protection metal pipe, rosette is mainly by mutual
The hemispherical upper lid of cooperation and hemispherical bottom composition, set out stylostome, upper lid and the column of string holes in the connection of bottom edge
Pipe is flexibly connected, and upper lid and bottom lid is respectively equipped with the external part I connecting by clasp and external part away from the one end being flexibly connected
Ⅱ；
Connect column support base at external part II on bottom, support base is fixed with the protection metal pipe of top closure, gold
Belong to and inside protection pipe, fill high-temperature insulation material, and be interspersed with thermocouple alloy wire and the rustless steel tubule of strip vertically,
Thermocouple alloy wire is pair-wise combination, and the top of thermocouple alloy wire is welded together as measurement end, and rustless steel tubule is close
Protection metal pipe top end is closed；
It is fixed with insulation joint plate, insulation joint plate is vertical with protection metal pipe to be connected, and insulation joint plate is away from gold inside bottom
The face belonging to protection pipe is provided with binding post, entrance hole and exploration hole, and thermocouple alloy wire is connected with binding post through entrance hole, stainless
Steel tubule is connected with exploration hole.
2. a kind of band exploration hole armoured thermocouple according to claim 1 is it is characterised in that described flexible connection refers to
Linking arm I and linking arm II are respectively equipped with lid and stylostome, one end of described linking arm I and linking arm II is by pin even
Connect.
3. a kind of band exploration hole armoured thermocouple according to claim 1 is it is characterised in that the connection of described clasp refers to stretch
Go out in end I and be buckled with clasp, described clasp junction button handle, described external part II is provided with and detains the draw-in groove of handle cooperation.
4. according to claim 1 a kind of with exploration hole armoured thermocouple it is characterised in that the upper lid side of described rosette
Along the circle sealing ring that stretches out.
5. a kind of band exploration hole armoured thermocouple according to claim 1 is it is characterised in that described support base and stylostome
Central axis be mutually perpendicular to.
6. according to claim 1 a kind of with exploration hole armoured thermocouple it is characterised in that described rustless steel tubule interior
Footpath is 2.0～6.0mm.
7. a kind of band exploration hole armoured thermocouple according to claim 1 is it is characterised in that described rustless steel tubule is close
One end plug of exploration hole is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620862618.3U CN205958128U (en) | 2016-08-10 | 2016-08-10 | Take exploration hole armoured thermocouple |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620862618.3U CN205958128U (en) | 2016-08-10 | 2016-08-10 | Take exploration hole armoured thermocouple |
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| Publication Number | Publication Date |
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| CN205958128U true CN205958128U (en) | 2017-02-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525263A (en) * | 2016-08-10 | 2017-03-22 | 浙江泰索科技有限公司 | Armored thermocouple provided with detection hole, and online detection and comparison method |
-
2016
- 2016-08-10 CN CN201620862618.3U patent/CN205958128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525263A (en) * | 2016-08-10 | 2017-03-22 | 浙江泰索科技有限公司 | Armored thermocouple provided with detection hole, and online detection and comparison method |
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| GR01 | Patent grant |