CN207540697U - A kind of short thermoelectric couple calibration system - Google Patents
A kind of short thermoelectric couple calibration system Download PDFInfo
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- CN207540697U CN207540697U CN201721573404.5U CN201721573404U CN207540697U CN 207540697 U CN207540697 U CN 207540697U CN 201721573404 U CN201721573404 U CN 201721573404U CN 207540697 U CN207540697 U CN 207540697U
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Abstract
The utility model is related to a kind of short thermoelectric couple calibration systems, heat-conducting medium in constant temperature field subsystem uses pure copper material, High-temperature resistant alloy material is enclosed with around fine copper, it is high-temperature alloy material mosaic coating inside calibration hole and inside temperature-control senser hole, upper design has the protecting tube of ceramic material, fire door top design has isothermal block sealing plate, in isothermal block, anti-oxidation cylinder, isothermal block pillar, there is high-temperature seal adhesive to be sealed between protecting tube and isothermal block sealing plate, isothermal block sealing plate upper design has insulating layer, heater strip is wound with around anti-oxidation cylinder, insulating layer is enclosed with around heater strip.Fine copper is employed as heat-conducting medium, calibration hole and temperature-control senser hole set the closed set layer of high-temperature alloy material, the thermometric mode bottomed out, so that its axial temperature field uniformity close to fire door substantially reduces, the thermocouple for only having 35mm long can be calibrated at present, solve the problems, such as that short thermoelectric couple calibration is difficult.
Description
Technical field
The utility model belongs to calibration of thermocouple field, and in particular to a kind of short thermoelectric couple calibration system.
Background technology
At present, thermocouple calibration device both domestic and external can only the thermocouple longer to length calibrate, general requirement heat
The length of galvanic couple is at least in more than 150mm, because shallower calibration hole can not provide the thermal field uniformity for meeting technology requirement, this
With regard to the serious development for affecting short thermoelectric couple.Such as the stem body stove of FLUKE companies, calibration hole is deeper, generally 160 to
203mm, and range of its equal thermal field only apart from the upward 60mm in bottom can use, that is to say, that its insertion depth must be
More than 100mm, but short thermoelectric couple length only has 35mm or so sometimes, therefore can not realize that short thermoelectric couple is calibrated.
Utility model content
In order to solve the problems, such as that short thermoelectric couple calibration is difficult, the utility model, which provides one kind, can calibrate short thermoelectric couple
Calibrating installation, the development for short thermoelectric couple provides basis.
The technical solution of the utility model is to provide a kind of short thermoelectric couple calibration system, including control system, constant temperature field
Subsystem, the temperature control subsystem and data acquisition subsystem being connect with the control system, the temperature control subsystem
It is also connect with constant temperature field subsystem, the data acquisition subsystem is adopted including thermocouple data collector to be measured with standard data
Storage is characterized in that：
Above-mentioned constant temperature field subsystem includes constant temperature block assembly 21, the insulating layer 6 of package constant temperature block assembly 21 and shell 11, on
State constant temperature block assembly 21, insulating layer 6 is located in shell 11；
Above-mentioned constant temperature block assembly 21 includes the isothermal block 1 of fine copper material, is wrapped in the high temperature alloy of isothermal block outer wall surrounding
The anti-oxidation housing 2 of material and the heater strip 4 for being wrapped in anti-oxidation hull outside wall；
21 top of above-mentioned constant temperature block assembly is provided with standard hole and multiple stretches into the school that inside isothermal block and depth is different
There are one temperature-control senser hole 9, above-mentioned calibration hole 7, standard hole and temperature control pass for quasi- 7 above-mentioned 21 bottom of constant temperature block assembly of hole setting
9 hole inner wall of sensor hole is both provided with high-temperature alloy material mosaic coating；
For installing standard, standard is contacted with standard bottom hole portion in above-mentioned standard device hole, and above-mentioned calibration hole 7 is used to pacify
Thermocouple to be measured is filled, thermocouple to be measured is contacted with 7 bottom of calibration hole, and above-mentioned temperature-control senser hole 9 is used to install temperature-control senser；
Above-mentioned temperature control subsystem carries out temperature control according to the control command that control system is sent to constant temperature field subsystem
System；Temperature-control senser information is fed back to temperature control subsystem by constant temperature field subsystem；The data acquisition subsystem acquisition is treated
The data of calorimetric galvanic couple and the data of standard are uploaded to control system, control system analysis processing data.
Preferably, above-mentioned 21 top of constant temperature block assembly is additionally provided with sealing plate 8, and above-mentioned calibration hole 7, standard hole upper end are equal
Protecting tube 10 is provided with, the hole passed through for protecting tube 10 is provided on sealing plate 8, above-mentioned protecting tube 10 passes through sealing plate 8, heat preservation
Layer 6 and shell 11 are in communication with the outside, and thermocouple to be measured passes through protecting tube 10 to be inserted into calibration hole 7, and is connect with 7 bottom of calibration hole
It touches, standard passes through protecting tube 10 to be inserted into standard hole, and is contacted with calibration hole bottom hole portion.The thermometric of all thermocouples is
Mode is bottomed out, accelerates stabilization time, reduces axial temperature difference, and its thermocouple when being calibrated is entirely sealed in calibration hole
, reduce its externalities, improve the order of accuarcy of calibration.
Preferably, above-mentioned constant temperature field subsystem further includes forced-convection heat transfer system 23；
Above-mentioned forced-convection heat transfer system includes Air Heater 231 and heat convection main pipeline 232, above-mentioned Air Heater 231
It is set to 11 inside of shell and is located at the surface of constant temperature block assembly 21, the air outlet blow-through thermocouple to be measured of Air Heater 231,
The air inlet connection heat convection main pipeline 232 of wind device 231,232 bottom of heat convection main pipeline passes through sealing flange
233 installation cooling blowers.In order to reduce the temperature at sensor fluid sealant, forced-convection heat transfer can be opened when being calibrated
System cools down to sensor fluid sealant.
Preferably, above-mentioned isothermal block 1 is cylinder.
Preferably, in order to farthest reduce the temperature difference between hole, multiple calibration holes 7 at the top of above-mentioned isothermal block are distributed in
On same periphery.
Preferably, above-mentioned constant temperature field subsystem further includes the isothermal block pillar 5 of support isothermal block, above-mentioned isothermal block pillar 5
One end is connect with isothermal block, and the other end is fixed on across insulating layer 6 on shell 11.
Preferably, in order to further improve calibration accuracy, in isothermal block 1, anti-oxidation housing 2, isothermal block pillar
5th, it is sealed between protecting tube 10 and sealing plate 8 by high-temperature seal adhesive.
Preferably, the material of above-mentioned protecting tube 10 is ceramics.
Preferably, above-mentioned high-temperature alloy material is GH536 alloys.
Preferably, which further includes the printing device being connect with control system.
The beneficial effects of the utility model are：
1st, the utility model sets high temperature alloy as a result of fine copper as heat-conducting medium, calibration hole and temperature-control senser hole
The closed set layer of material, the thermometric mode bottomed out so that its axial temperature field uniformity close to fire door substantially reduces, and at present may be used
To be calibrated to the thermocouple for only having 35mm long, the calibration requirements of short thermoelectric couple are realized；
2nd, it is close by high-temperature seal adhesive between isothermal block, anti-oxidation housing, isothermal block pillar, protecting tube and sealing plate
Envelope, thermocouple are entirely sealed in calibration hole when being calibrated, reduce its externalities, improve calibration
Order of accuarcy；
3rd, the utility model further includes forced-convection heat transfer system, and forced-convection heat transfer system can be opened when being calibrated
System, cools down to sensor fluid sealant, protects sensor；
4th, the same circumference of pore size distribution is calibrated, the temperature difference between hole is farthest reduced, it is high to improve calibration accuracy.
Description of the drawings
Fig. 1 is the system principle schematic diagram of the utility model；
Fig. 2 is the constant temperature field subsystem of the utility model and forced-convection heat transfer system construction drawing；
Fig. 3 is the constant temperature block structural diagram of the utility model；
Fig. 4 is the heat convection subsystem structure figure of the utility model.
Reference numeral is in figure：1- isothermal blocks, the anti-oxidation housings of 2-, 3- mosaic coatings, 4- heater strips, 5- isothermal block pillars,
6- insulating layers, 7- calibration holes, 8- sealing plates, 9- temperature-control sensers hole, 10- protecting tubes, 11- shells；
21- constant temperature block assemblies, 23- forced-convection heat transfer systems；
231- Air Heaters, 232- heat convection main pipelines, 233- sealing flanges.
Specific embodiment
It will be seen from figure 1 that the short thermoelectric couple calibration system of the utility model includes control system, constant temperature field subsystem
System, the temperature control subsystem and data acquisition subsystem that are connect with the control system, temperature control subsystem also with constant temperature
Field subsystem connects, and can also include the printing device being connect with control system and forced-convection heat transfer subsystem, the pressure pair
Stream heat exchange subsystem is between control system and constant temperature field subsystem.
The utility model sends control command from control system to temperature control subsystem, and temperature control subsystem is to constant temperature
Field subsystem is controlled into trip temperature, and constant temperature field subsystem feeds back to the collected temperature information of the temperature-control senser being arranged inside
Temperature control subsystem, data acquisition subsystem acquire the data of short thermoelectric couple and standard to be measured and are uploaded to control respectively
System analyzes and processes data by control system, last printed report；
Figure it is seen that forced-convection heat transfer system 23 includes Air Heater 231 and heat convection main pipeline 232,
Wind device 231 is set on 11 inside of shell and positioned at the surface of constant temperature block assembly 21, the air outlet blow-through thermoelectricity to be measured of Air Heater 231
Even, the air inlet connection heat convection main pipeline 232 of Air Heater 231, air outlet picks out wind pipeline, heat convection main body tube
232 bottom of road cooling blower is installed by sealing flange 233.
Cold wind is sent into Air Heater 231 by bottom coohng wind turbine by heat convection main pipeline 232, and Air Heater 231 passes through
Cold wind is sent to short thermoelectric couple top to be measured the distribution function of air quantity by itself, is carried out so as to treat the fluid sealant of calorimetric galvanic couple
Cooling.
It can be seen that the utility model constant temperature field subsystem includes constant temperature block assembly 21 and package constant temperature block assembly from such as Fig. 3
21 insulating layer 6；Constant temperature block assembly 21 include isothermal block 1, be wrapped in around isothermal block 1 High-temperature resistant alloy material it is anti-oxidation
Housing 2 and the heater strip 4 of anti-oxidation hull outside wall winding.
The heat-conducting medium of its isothermal block 1 uses pure copper material, is cylinder, and top is provided with standard hole and multiple depths
Spend different calibration holes 7, bottom is provided with temperature-control senser hole 9, on 9 inner wall of standard hole, calibration hole 7 and temperature-control senser hole
Equipped with high-temperature alloy material mosaic coating 3, calibration hole 7 and standard hole top design have the protecting tube 10 of ceramic material, isothermal block 1
Top design has sealing plate 8, and sealing plate 8 is equipped with the hole passed through for protecting tube 10.Thermocouple to be measured is inserted into across protecting tube 10
In calibration hole 7, and contacted with 7 bottom of calibration hole, standard passes through protecting tube 10 to be inserted into standard hole, and with calibration hole bottom hole
Portion contacts.The thermometric of all thermocouples is to bottom out mode, accelerates stabilization time, reduces axial temperature difference；In isothermal block 1, oxygen
High-temperature seal adhesive is equipped between change housing 2, isothermal block pillar 5, protecting tube 10 and sealing plate 8 to be sealed.Thermocouple into
It is entirely sealed in calibration hole during row calibration, reduces its externalities, improve the order of accuarcy of calibration.
Claims (10)
1. a kind of short thermoelectric couple calibration system, including control system, constant temperature field subsystem, it is connect with the control system
Temperature control subsystem and data acquisition subsystem, the temperature control subsystem are also connect with constant temperature field subsystem, the number
Include thermocouple data collector to be measured and standard data collector according to acquisition subsystem, it is characterised in that：
The constant temperature field subsystem includes the insulating layer (6) and shell of constant temperature block assembly (21), package constant temperature block assembly (21)
(11), the constant temperature block assembly (21), insulating layer (6) are in shell (11)；
Isothermal block (1) of the constant temperature block assembly (21) including fine copper material, the high temperature alloy for being wrapped in isothermal block outer wall surrounding
The anti-oxidation housing (2) of material and the heater strip (4) for being wrapped in anti-oxidation hull outside wall；
Standard hole is provided at the top of the constant temperature block assembly (21) and multiple stretches into the calibration that inside isothermal block and depth is different
Hole (7), there are one temperature-control senser hole (9), the calibration hole (7), standard holes for constant temperature block assembly (21) the bottom setting
High-temperature alloy material mosaic coating is both provided with temperature-control senser hole (9) hole inner wall；
For installing standard, standard is contacted with standard bottom hole portion in the standard hole, and the calibration hole (7) is for installing
Thermocouple to be measured, thermocouple to be measured are contacted with calibration hole (7) bottom, and the temperature-control senser hole (9) senses for installing temperature control
Device；
The temperature control subsystem carries out temperature control according to the control command that control system is sent to constant temperature field subsystem；It is permanent
Temperature information is fed back to temperature control subsystem by the temperature-control senser of thermal field subsystem；The data acquisition subsystem acquisition is treated
The data of calorimetric galvanic couple and the data of standard are uploaded to control system, control system analysis processing data.
2. a kind of short thermoelectric couple calibration system according to claim 1, it is characterised in that：The constant temperature block assembly (21)
Top is additionally provided with sealing plate (8), and the calibration hole (7), standard hole upper end are both provided with protecting tube (10), sealing plate (8)
On be provided with the hole passed through for protecting tube (10), the protecting tube (10) is across sealing plate (8), insulating layer (6) and shell (11)
It is in communication with the outside, thermocouple to be measured passes through protecting tube (10) to be inserted into calibration hole (7), and is contacted with calibration hole (7) bottom, standard
Device passes through protecting tube (10) to be inserted into standard hole, and is contacted with calibration hole bottom hole portion.
3. short thermoelectric couple calibration system according to claim 2, it is characterised in that：The constant temperature field subsystem further includes
Forced-convection heat transfer system (23)；
The forced-convection heat transfer system includes Air Heater (231) and heat convection main pipeline (232), the Air Heater
(231) it is set to shell (11) inside and positioned at the surface of constant temperature block assembly (21), the air outlet blow-through of Air Heater (231) is treated
Calorimetric galvanic couple, the air inlet connection heat convection main pipeline (232) of Air Heater (231), heat convection main pipeline (232)
Bottom cooling blower is installed by sealing flange (233).
4. short thermoelectric couple calibration system according to any one of claims 1 to 3, it is characterised in that：The isothermal block (1)
For cylinder.
5. short thermoelectric couple calibration system according to claim 4, it is characterised in that：It is multiple at the top of the isothermal block
Calibration hole (7) is distributed on same periphery.
6. short thermoelectric couple calibration system according to claim 5, it is characterised in that：The constant temperature field subsystem further includes
The isothermal block pillar (5) of isothermal block is supported, described isothermal block pillar (5) one end is connect with isothermal block, and the other end passes through insulating layer
(6) it is fixed on shell (11).
7. short thermoelectric couple calibration system according to claim 6, it is characterised in that：In isothermal block (1), anti-oxidation housing
(2), it is sealed between isothermal block pillar (5), protecting tube (10) and sealing plate (8) by high-temperature seal adhesive.
8. short thermoelectric couple calibration system according to claim 7, it is characterised in that：The material of the protecting tube (10) is
Ceramics.
9. short thermoelectric couple calibration system according to claim 8, it is characterised in that：The high-temperature alloy material is
GH536 alloys.
10. short thermoelectric couple calibration system according to claim 9, it is characterised in that：It further includes and is connect with control system
Printing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573404.5U CN207540697U (en) | 2017-11-22 | 2017-11-22 | A kind of short thermoelectric couple calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573404.5U CN207540697U (en) | 2017-11-22 | 2017-11-22 | A kind of short thermoelectric couple calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540697U true CN207540697U (en) | 2018-06-26 |
Family
ID=62614731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721573404.5U Withdrawn - After Issue CN207540697U (en) | 2017-11-22 | 2017-11-22 | A kind of short thermoelectric couple calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207540697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884097A (en) * | 2017-11-22 | 2018-04-06 | 西安航天动力研究所 | A kind of short thermoelectric couple calibration system |
-
2017
- 2017-11-22 CN CN201721573404.5U patent/CN207540697U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884097A (en) * | 2017-11-22 | 2018-04-06 | 西安航天动力研究所 | A kind of short thermoelectric couple calibration system |
| CN107884097B (en) * | 2017-11-22 | 2023-08-25 | 西安航天动力研究所 | Short thermocouple calibration system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180626 Effective date of abandoning: 20230825 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180626 Effective date of abandoning: 20230825 |