CN103913257B - Fixed pipe type calibration furnace capable of correcting thermal field difference - Google Patents
Fixed pipe type calibration furnace capable of correcting thermal field difference Download PDFInfo
- Publication number
- CN103913257B CN103913257B CN201410159008.2A CN201410159008A CN103913257B CN 103913257 B CN103913257 B CN 103913257B CN 201410159008 A CN201410159008 A CN 201410159008A CN 103913257 B CN103913257 B CN 103913257B
- Authority
- CN
- China
- Prior art keywords
- intubation
- temperature
- thermocouple
- couple
- field difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to a fixed pipe type calibration furnace capable of correcting the thermal field difference. The calibration furnace comprises a furnace body. An electric heating furnace pipe is arranged in the furnace body, and a standard thermocouple insertion pipe and a temperature control thermocouple insertion pipe are located on the central axis of the electric heating furnace pipe. Calibrated thermocouple insertion pipes surround the standard thermocouple insertion pipe and the temperature control thermocouple insertion pipe respectively. And gaps between the standard thermocouple insertion pipe, the temperature control thermocouple insertion pipe, the first calibrated thermocouple insertion pipes and the second calibrated thermocouple insertion pipes are filled with high-temperature adhesive fillings. The fixed pipe type calibration furnace has the advantages that the standard thermocouple insertion pipe and the calibrated thermocouple insertion pipe are mutually insulating, and precious metal standard thermocouples are prevented from being polluted by cheap metal stand thermocouples; the calibrated thermocouple insertion pipes are evenly distributed symmetric about the central axis of the standard thermocouple insertion pipe and have the same insertion depth, and therefore the horizontal temperature field difference is eliminated, the vertical temperature field difference value is kept constant, the influence of the traditional calibration furnace temperature field difference on calibration results is avoided, and result accuracy, reliability and repeatability and working efficiency are improved.
Description
Technical field
The present invention relates to a kind of fixing tubular type assay furnace revising thermal field difference.
Background technology
The thermostatic equipment that thermocouple calibration is usually used be tube type resistance furnace, tube type resistance furnace center equipped with electric heating tube,
During thermocouple calibration, need to band together in the middle part of insertion electric heating tube by the measurement end of tested for standard hot even summation thermocouple,
Due to should not be firmly excessive when tying up, in order to avoid damaging protecting tube, it be difficult to for measurement end to be placed on boiler tube during insertion boiler tube
Axis centre position, on the upper side or on the lower side, bigger thermal field all can be caused poor, and, once tie up position in detection process loosening
Or tie up improper lead to protection pipe damaged, not only can pollute or even damage noble metal standard couple, and standard hot even summation
Tested thermocouple measurement end is likely to just be no longer on same depth, will increase that horizontal thermal field is poor, and no matter any phenomenon goes out
Now and exist, all can lead to examine and determine error in data erroneous judgement product quality.Furthermore, because shove charge operation randomness is very big, shove charge side
Formula cannot keep completely the same, and horizontal level and upright position all have uncertainty, with a collection of product shove charge twice detection, number
According to very difficult repetition.Allow tube furnace thermal field difference to be less than 1.0 DEG C plus national metrological verification regulations, with one-level K-type thermocouple be
Example, 400 DEG C of following provisions are less than 1.6 DEG C, if now nearly 1.0 DEG C of thermal field differential cannot be revised again, product will be sentenced
Surely cause considerable influence.
Content of the invention
It is an object of the invention to provide a kind of fixing tubular type assay furnace revising thermal field difference, to overcome currently available technology
Above shortcomings.
The purpose of the present invention is to be achieved through the following technical solutions：
A kind of fixing tubular type assay furnace revising thermal field difference, including body of heater, in described body of heater, center position is provided with electricity
Furnace tubing, is provided with standard couple intubation, temperature-control heat couple intubation, tested thermocouple intubation one and in described electrical heating boiler tube
Tested thermocouple intubation two, described standard couple intubation and temperature-control heat couple intubation are respectively positioned on described electric furnace tube hub axle
Line position, is evenly distributed with multiple tested thermocouple intubations one around described standard couple intubation, around described temperature control thermoelectricity
Even intubation is evenly distributed with multiple tested thermocouple intubations two, the plurality of tested thermocouple intubation one and the plurality of tested heat
Galvanic couple intubation two is respectively positioned at the concentric circular position of described electrical heating boiler tube, described standard couple intubation and the plurality of tested
The ttom of pipe wall of thermocouple intubation one is away from the vertical distance between center line of described electrical heating boiler tube and temperature-control heat couple intubation and the plurality of
The ttom of pipe wall of tested thermocouple intubation two is identical away from the vertical distance between center line of described electrical heating boiler tube；Described standard couple is inserted
All fill out between pipe, temperature-control heat couple intubation, the plurality of tested thermocouple intubation one and the plurality of tested thermocouple intubation two
It is filled with high-temperature glue inserts.
Further, it is filled with insulation material between described body of heater and described electrical heating boiler tube.
Further, it is inserted with temperature-control heat couple in described temperature-control heat couple intubation.
Further, described temperature-control heat couple is connected with temperature controller.
Further, described temperature controller is connected with executive component.
Further, described executive component is connected with described electric heating tube by two binding posts of body of heater.
Beneficial effects of the present invention are：Mutually insulated between standard hot even summation tested thermocouple intubation, can prevent Lian Jin
Belong to thermocouple to pollute the damage that noble metal standard couple leads under high temperature shape or scrap；Tested thermocouple intubation is around standard
Thermocouple intubation axis is symmetrically and evenly distributed, and insertion depth is identical and is fixed, and on the one hand eliminates horizontal thermal field poor, separately
On the one hand keep vertical thermal field difference to immobilize and conveniently record, can be revised in verification result, overcome conventional tube
The impact to verification result for the thermal field difference that formula assay furnace shove charge position and depth uncertainty cause.And, calibrating operation shove charge
Easy to be laborsaving, product only need to be inserted into intubation top, does not have that horizontal thermal field is poor, improves the accurate of metrology and measurement result
Property, reliability, repeatability and work efficiency.
Brief description
Below according to accompanying drawing, the present invention is described in further detail.
Fig. 1 is the structural representation of the fixing tubular type assay furnace of the thermal field revised difference described in the embodiment of the present invention；
Fig. 2 is the A-A of the structural representation of fixing tubular type assay furnace of the thermal field revised difference described in the embodiment of the present invention
To schematic diagram；
Fig. 3 is the wiring schematic diagram of the fixing tubular type assay furnace of the thermal field revised difference described in the embodiment of the present invention.
In figure：
1st, body of heater；2nd, electrical heating boiler tube；3rd, standard couple intubation；4th, temperature-control heat couple intubation；5th, tested thermocouple is inserted
Guan Yi；6th, tested thermocouple intubation two；7th, high-temperature glue inserts；8th, insulation material；9th, temperature-control heat couple；10th, temperature control
Instrument；11st, executive component；12nd, standard couple；13rd, tested thermocouple.
Specific embodiment
As Figure 1-3, a kind of fixing tubular type assay furnace revising thermal field difference described in the embodiment of the present invention, including stove
Body 1, in described body of heater 1, center position is provided with electrical heating boiler tube 2, is provided with standard couple intubation in described electrical heating boiler tube 2
3rd, temperature-control heat couple intubation 4, tested thermocouple intubation 1 and tested thermocouple intubation 26, described standard couple intubation 3 He
Temperature-control heat couple intubation 4 is respectively positioned on described electrical heating boiler tube 2 axial centerline, uniform around described standard couple intubation 3
Multiple tested thermocouple intubations one 5 are distributed with, are evenly distributed with multiple tested thermocouples around described temperature-control heat couple intubation 4 and insert
Pipe 26, the plurality of tested thermocouple intubation 1 and the plurality of tested thermocouple intubation 26 are respectively positioned on described electric furnace
At the concentric circular position of pipe 2, the ttom of pipe wall of described standard couple intubation 3 and the plurality of tested thermocouple intubation 1 is away from institute
State the ttom of pipe of the vertical distance between center line of electrical heating boiler tube 2 and temperature-control heat couple intubation 4 and the plurality of tested thermocouple intubation 26
Wall is identical away from the vertical distance between center line of described electrical heating boiler tube 2；Described standard couple intubation 3, temperature-control heat couple intubation 4, institute
State and be all filled with high-temperature glue inserts between multiple tested thermocouple intubations 1 and the plurality of tested thermocouple intubation 26
7；It is filled with insulation material 8 between described body of heater 1 and described electrical heating boiler tube 2；It is inserted with temperature control in described temperature-control heat couple intubation 4
Thermocouple 9；Described temperature-control heat couple 9 is connected with temperature controller 10；Described temperature controller 10 is connected with executive component 11；Institute
State executive component 11 to be connected with described electric heating tube 2 by two binding posts of body of heater 1.
When specifically used, before development measurement verification operates with, finish according to Fig. 3 wiring, using the mark as reference standard
Quasi- thermocouple 12 inserts standard couple intubation, and other eight standard couples, as tested thermocouple 13, insert tested respectively
Thermocouple intubation, temperature controller is set on required test temperature point（As 800 DEG C etc.）, connect temperature controller power supply,
Will pass through executive component and heated for controlling temperature operation is carried out to electric tube furnace.Treat temperature constant in test temperature value, respectively measurement ginseng
The millivolt value of eight standard couples in accurate other the eight tested thermocouple intubations of standard hot even summation of sighting target, is converted into temperature
Angle value, deducts the temperature value of the standard couple of reference standard respectively with the temperature value of other eight standard couples, obtains every
The deviation of the standard thermocouple temperature value of individual intubation top end and reference standard, as thermal field is poor.Before respective thermal field difference
Face adds a negative sign it is simply that the thermal field correction value of each intubation top end.
For, during actual thermocouple measurement verification, respectively eight tested thermocouples being inserted tested thermocouple intubation, feel
Freely be inserted into apical position, connect thermocouple assay circuit, different test temperatures arranged on temperature controller, treats
Temperature control is in steady statue, respectively the millivolt of testing standard thermocouple intubation Plays thermocouple and each tested thermocouple
Value, is converted into temperature value, more tested electric thermo-couple temperature value is added the thermal field correction value of corresponding intubation measurement end present position, that is,
For the actual temperature value of tested thermocouple, with the actual temperature value of tested thermocouple deduct standard couple temperature value it is simply that
The temperature deviation of tested thermocouple, this deviation compares national Specification value, you can judge whether product quality meets regulation
Require.
The fixing tubular type assay furnace of thermal field difference can be revised, including calibrating furnace body, calibrating furnace body is filled with insulation material,
It is enclosed with electrical heating boiler tube, fixation in electrical heating boiler tube is packaged with the refractory ceramics pipe combination of one end closing in insulation material
Body, its earthenware assembly includes a standard couple intubation, a temperature-control heat couple intubation and eight and is symmetrically mounted on
The tested thermocouple intubation of boiler tube both sides same depth, is arranged in electrical heating boiler tube whole intubations and adopts high temperature resistant inserts to glue
Connect fixation, thus, keep each tested thermocouple intubation inner chamber top end temperature and standard couple intubation inner chamber top end temperature
Between thermal field difference remain constant, be easy in actual calibrating, thermal field difference is modified, with eliminate thermal field difference and thermal field
The uncertain error brought to verification result of difference and erroneous judgement.
It is provided centrally with a cavity-like electrical heating boiler tube in calibrating furnace body.Standard couple intubation, temperature-control heat couple are inserted
Pipe and tested thermocouple intubation, mutually insulated, high-temperature atmosphere state cheap metal can be prevented it is ensured that noble metal to the pollution of noble metal
Standard couple is without damage.Tested thermocouple intubation is symmetrically and evenly distributed around standard couple intubation axis, and insertion is deep
Degree is identical, eliminates the presence of horizontal thermal field difference.Tested thermocouple intubation is around standard couple intubation axis symmetrically and evenly
Distribution, insertion depth is identical, and vertical thermal field difference is fixing, can test acquisition in advance, be revised during use.Refractory ceramics
Tested thermocouple cannula inner diameter in pipe assembly and depth immobilize, and during product calibrating operation, shove charge operation is very easy,
Only product need to be inserted into bottom, additional thermal field will be caused because shove charge is improper poor, lead to product quality misjudgement and judge by accident.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that under the enlightenment of the present invention other are various
The product of form, however, making any change in its shape or structure, every have skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (6)
1. a kind of fixing tubular type assay furnace revising thermal field difference, including body of heater (1), the interior center position of described body of heater (1) sets
There is electrical heating boiler tube (2), in described electrical heating boiler tube (2), be provided with standard couple intubation (3), temperature-control heat couple intubation (4), quilt
Inspection thermocouple intubation one (5) and tested thermocouple intubation two (6) it is characterised in that：Described standard couple intubation (3) and temperature control
Thermocouple intubation (4) is respectively positioned on described electrical heating boiler tube (2) axial centerline, around described standard couple intubation (3) all
Even multiple tested thermocouple intubations one (5) are distributed with, be evenly distributed with multiple tested heat around described temperature-control heat couple intubation (4)
Galvanic couple intubation two (6), the plurality of tested thermocouple intubation one (5) and the plurality of tested thermocouple intubation two (6) are respectively positioned on
At the concentric circular position of described electrical heating boiler tube (2), described standard couple intubation (3) and the plurality of tested thermocouple intubation
One (5) ttom of pipe wall is away from described electrical heating boiler tube (2) vertically distance between center line and temperature-control heat couple intubation (4) and the plurality of quilt
Vertically distance between center line is identical away from described electrical heating boiler tube (2) for the ttom of pipe wall of inspection thermocouple intubation two (6)；Described standard couple
Intubation (3), temperature-control heat couple intubation (4), the plurality of tested thermocouple intubation one (5) and the plurality of tested thermocouple intubation
All it is filled with high-temperature glue inserts (7) between two (6).
2. according to claim 1 revise thermal field difference fixing tubular type assay furnace it is characterised in that：Described body of heater (1)
It is filled with insulation material (8) and described electrical heating boiler tube (2) between.
3. according to claim 2 revise thermal field difference fixing tubular type assay furnace it is characterised in that：Described temperature control thermoelectricity
It is inserted with temperature-control heat couple (9) in even intubation (4).
4. according to claim 3 revise thermal field difference fixing tubular type assay furnace it is characterised in that：Described temperature control thermoelectricity
Even (9) are connected with temperature controller (10).
5. according to claim 4 revise thermal field difference fixing tubular type assay furnace it is characterised in that：Described temperature control
Instrument (10) is connected with executive component (11).
6. according to claim 5 revise thermal field difference fixing tubular type assay furnace it is characterised in that：Described executive component
(11) it is connected with described electrical heating boiler tube (2) by two binding posts of body of heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159008.2A CN103913257B (en) | 2014-04-18 | 2014-04-18 | Fixed pipe type calibration furnace capable of correcting thermal field difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159008.2A CN103913257B (en) | 2014-04-18 | 2014-04-18 | Fixed pipe type calibration furnace capable of correcting thermal field difference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103913257A CN103913257A (en) | 2014-07-09 |
| CN103913257B true CN103913257B (en) | 2017-02-15 |
Family
ID=51039112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410159008.2A Active CN103913257B (en) | 2014-04-18 | 2014-04-18 | Fixed pipe type calibration furnace capable of correcting thermal field difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103913257B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248253A (en) * | 2016-07-28 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | The temperature sensor calibrator (-ter) unit of uniform temperature fields |
| CN106017739A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Temperature sensor calibration device |
| CN106225954A (en) * | 2016-07-28 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | There is the calibrating device for temperature sensor of electromagnetic induction roller heating |
| CN107764436B (en) * | 2017-11-03 | 2020-03-20 | 中国航空工业集团公司北京长城计量测试技术研究所 | Tungsten-rhenium thermocouple calibration device |
| CN111413011A (en) * | 2020-04-21 | 2020-07-14 | 北京空天技术研究所 | Method for testing influence of high-temperature conduction of adhesive on temperature measurement of thermocouple |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3350915A (en) * | 1965-05-27 | 1967-11-07 | Procedyne Corp | Thermometric calibration apparatus utilizing a fluidized bed of solid particles |
| US6193411B1 (en) * | 1999-02-25 | 2001-02-27 | Industrial Technology Research Institute | Calibrator for contact and non-contact thermometer |
| CN201569514U (en) * | 2009-12-24 | 2010-09-01 | 辽宁省计量科学研究院 | Piping type temperature equalizing block for electric thermocouple calibration furnace |
| CN201837486U (en) * | 2009-11-09 | 2011-05-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Calibrating device for short thermocouple |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1037881C2 (en) * | 2010-04-12 | 2011-10-17 | Martin Johan Groot | CALIBRATION DEVICE FOR THERMOMETERS. |
| DE112013000774A5 (en) * | 2012-01-31 | 2014-10-30 | Technische Universität Ilmenau | Block calibrator for the traceable calibration of thermometers and method for its use |
| CN103307869A (en) * | 2013-06-12 | 2013-09-18 | 赵翰文 | Box type resistor furnace detection and calibration auxiliary device |
-
2014
- 2014-04-18 CN CN201410159008.2A patent/CN103913257B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3350915A (en) * | 1965-05-27 | 1967-11-07 | Procedyne Corp | Thermometric calibration apparatus utilizing a fluidized bed of solid particles |
| US6193411B1 (en) * | 1999-02-25 | 2001-02-27 | Industrial Technology Research Institute | Calibrator for contact and non-contact thermometer |
| CN201837486U (en) * | 2009-11-09 | 2011-05-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Calibrating device for short thermocouple |
| CN201569514U (en) * | 2009-12-24 | 2010-09-01 | 辽宁省计量科学研究院 | Piping type temperature equalizing block for electric thermocouple calibration furnace |
Non-Patent Citations (2)
| Title |
|---|
| 新型热电偶检定炉结构探讨;邱化元 等;《节能技术》;19901231(第6期);5-9 * |
| 铂铑10-铂热电偶检定炉的改造;王欣然;《内蒙古电力技术》;20030831;第21卷(第4期);62-63 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103913257A (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103913257B (en) | Fixed pipe type calibration furnace capable of correcting thermal field difference | |
| CN203365021U (en) | Portable temperature calibrator | |
| CN101639390B (en) | Novel vertical type thermocouple detecting furnace | |
| CN108680285A (en) | The calibration method of short branch electric thermo-couple temperature verification stove and short branch thermocouple | |
| CN103063329A (en) | Calibration method for marine diesel engine temperature-measurement thermocouple | |
| CN102937606A (en) | Explosion limit testing device of combustible gas under high-temperature condition | |
| CN117906902A (en) | Pre-heating total temperature probe and high-temperature high-Mach number airflow total temperature measurement method | |
| CN105127538B (en) | Tin soldering machine temperature automatic calibration mechanism and its calibration method | |
| CN208282964U (en) | A kind of thermo-electric couple temperature measuring apparatus | |
| CN208443498U (en) | The temperature correction instrument that a kind of pair of electronic thermometer is calibrated | |
| CN101706208B (en) | Thermal analogue electric furnace for use in researches on hydrocarbon generation kinetics | |
| CN106225943B (en) | A kind of device and method based on Transient Heat Transfer theory measurement high quartz melting furnace temperature | |
| CN204854335U (en) | A graphite crucible device for induction melting temperature measurement in melt -spun stove | |
| CN213361079U (en) | Ceramic tube cup joints seal structure based on oxygen probe | |
| CN205808593U (en) | A kind of Multi probe calibration constant temperature insert arrangement being applicable to implant production process | |
| CN202547377U (en) | Constant-temperature furnace for rotary viscosimeter | |
| CN106018153A (en) | Device for testing anti-oxidation property of anti-oxidation coating between -160 DEG C and room temperature | |
| CN203758633U (en) | Measuring structure for insulation effect of forging insulation sheath material | |
| CN103837254A (en) | Roller heat treatment technology process temperature detection device | |
| CN208653673U (en) | Short branch electric thermo-couple temperature verifies furnace | |
| CN203337602U (en) | Oxygen probe | |
| CN217384483U (en) | Box furnace temperature measuring device of simulated load | |
| CN206470626U (en) | Temperature regulating device for nuclear power plant reactor coolant system temp probe insulation temperature | |
| CN103487171A (en) | Crocodile-type clamp | |
| CN103759848B (en) | A kind of vertical oxidation for being used for semiconductor heat processing containing temperature measuring equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |