CN204330183U - A kind of Combined thermocouple assay furnace - Google Patents
A kind of Combined thermocouple assay furnace Download PDFInfo
- Publication number
- CN204330183U CN204330183U CN201420835322.3U CN201420835322U CN204330183U CN 204330183 U CN204330183 U CN 204330183U CN 201420835322 U CN201420835322 U CN 201420835322U CN 204330183 U CN204330183 U CN 204330183U
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- Prior art keywords
- heater
- assay furnace
- high temperature
- thermopair
- temperature alloy
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Abstract
The utility model discloses a kind of Combined thermocouple assay furnace, it comprises well heater, high temperature alloy isothermal block, heating power supply line, controllable silicon, intelligent instrument, standard couple, switch, electric measuring instrument, assay furnace upper cover plate and body of heater; Described well heater is juxtaposed in body of heater, and is arranged by the heating power supply line parallel of its lower end, and described heating power supply line is drawn by lower end, body of heater side, is connected with controllable silicon and intelligent instrument in turn; The upper end of described well heater is provided with high temperature alloy isothermal block, is provided with tested thermocouple jack in the middle of high temperature alloy isothermal block; Described standard couple is connected with high temperature alloy isothermal block by power lead one end, and the other end is connected with switch, and described standard couple is arranged at body of heater outside; The other end of described switch connects electric measuring instrument; Described upper of furnace body is provided with assay furnace upper cover.This equipment is convenient to detect type Combined thermocouple in upright arrangement, uniform temperature fields, thermopair accurate positioning, and sampled data is reliable, and convenient test is quick.
Description
Technical field
The utility model relates to a kind of thermocouple calibration device, specifically a kind of Combined thermocouple assay furnace.
Background technology
Thermopair (thermocouple) is temperature element conventional in temperature measuring instrument, is when being bonded into loop by the conductor two ends of two kinds of heterogeneities, when two abutment electric thermo-couple temperatures are different, will produce thermocurrent in loop.If when the working end of thermopair and reference end have the temperature difference, Displaying Meter will indicate the temperature value corresponding to thermoelectrical potential that thermopair produces, its direct measuring tempeature, and temperature signal is converted to thermopower signal, converted to the temperature of measured medium by electric meter (secondary instrument).The thermoelectricity of thermopair moves heat and will raise along with measuring junction temperature and increase, and its size is only relevant with the temperature at thermocouple material and two ends, has nothing to do with the length of thermode, diameter.The profile of various thermopair is often far from it because of needs, but their basic structure is roughly the same, is usually made up of major parts such as thermode, insulation sleeve protection tube and terminal boxes, and usual and Displaying Meter, recorder and electronic controller support the use.
As a kind of temperature measurement device, the quality of thermopair is directly connected to commercial production product quality out, and according to national metrological regulations, thermopair is as temperature measurement device, and necessary periodic verification, so the calibrating installation of exploitation thermopair is very important.
Measurement unit, when calibration operation thermopair, adopts electric thermo-couple test furnace usually.In electric thermo-couple test furnace field, general conventional assay furnace, furnace superintendent is 600mm or 300mm, such as the assay furnace of a 300mm, detects the shortest thermopair length and is not less than 200mm length.But when user need to detect thermopair specification do not meet limit requirements time, as diameter be 5.2 mm, length at 80mm, and be 4 thermopairs in upright arrangement, conventional assay furnace can not meet user's requirement.
And calibration method is that industrial thermocouple and the standard of cover protection tube are tied up bunchy usually, is directly placed in assay furnace center and examines and determine.The standard-required of 1 degree Celsius is not more than because electric thermo-couple test furnace can not meet the temperature difference between any two points in loading 30mm temperature field, side, and the lack of homogeneity of warm field, temperature fluctuation is large, causes calibrating thermopair result inaccurate, indicating value is dispersed large, and uncertainty is bigger than normal.
Summary of the invention
The utility model provides a kind of Combined thermocouple assay furnace, and this Combined thermocouple assay furnace adopts the mode of 4 groups of miniature furnace combinations, perfect alignment sensor, centralized control, temperature field uniform temperature is good, and sampled data accurately and reliably, makes test job become convenient and swift.
For solving the technical matters existed in prior art, the concrete technical scheme of employing is:
A kind of Combined thermocouple assay furnace, comprises well heater, high temperature alloy isothermal block, heating power supply line, controllable silicon, intelligent instrument, standard couple, switch, electric measuring instrument, assay furnace upper cover plate and body of heater; Described well heater is juxtaposed in body of heater, and is arranged by the heating power supply line parallel of its lower end, and described heating power supply line is drawn by lower end, body of heater side, is connected with controllable silicon and intelligent instrument in turn; The upper end of described well heater is provided with high temperature alloy isothermal block, is provided with tested thermocouple jack in the middle of described high temperature alloy isothermal block; Described standard couple is connected with high temperature alloy isothermal block by power lead one end, and the other end is connected with switch, and described standard couple is arranged at body of heater outside; The other end of described switch connects electric measuring instrument; Described upper of furnace body is provided with assay furnace upper cover.
Described standard couple is S type thermopair.
Described high temperature alloy isothermal block is nickel Lip river alloy.
Described body of heater overall length is 700 millimeters.
Described tested thermopair is located in tested thermocouple jack, and the length of tested thermopair can be 80 millimeters.
Described well heater and standard couple are four groups, and four groups support the use, for detecting the stability of tested thermopair.
Described well heater all adopts Resistant heating.
When detecting tested thermopair, tested thermopair is connected on switch.
By adopting such scheme, compared with prior art, its technique effect is a kind of Combined thermocouple assay furnace of the utility model:
The accredited thermopair method directly inserted in high temperature alloy isothermal block is adopted to solve the orientation problem of thermopair in upright arrangement, and the detection of off-gauge type thermopair can be used for, in addition, high temperature alloy isothermal block adopts nickel Lip river alloy to make, its advantage is: Heat stability is good during high temperature, thermal inertia is large.
Adopt four groups of independent well heater heating, can four detect simultaneously, and improve the uniform temperature of calibrating temperature field in furnace, improve the accuracy of calibration; In addition, well heater adopts Resistant heating, and compare the heating element turned to noble metal, cost is lower, and maintenance is convenient.
Assay furnace uses team control intelligent instrument control, and control solid-state relay zero passage and set out, control the mode of 4 groups of well heaters, centralized control, step is played reliably easy, makes test job convenient and swift.
Accompanying drawing explanation
fig. 1 is the one-piece construction schematic diagram of a kind of Combined thermocouple assay furnace of the utility model.
Embodiment
Below in conjunction with shown in Fig. 1, the utility model is further described:
A kind of Combined thermocouple assay furnace, comprises well heater 1, high temperature alloy isothermal block 2, heating power supply line 4, controllable silicon 5, intelligent instrument 6, standard couple 7, switch 8, electric measuring instrument 9, assay furnace upper cover plate 10 and body of heater 11; Described well heater 1 all adopts Resistant heating, is juxtaposed in body of heater 11, and is arranged in parallel by the heating power supply line 4 of its lower end, and described heating power supply line 4 is drawn by lower end, body of heater 11 side, is connected with controllable silicon 5 and intelligent instrument 6 in turn; The upper end of described well heater 1 is provided with high temperature alloy isothermal block 2, described high temperature alloy isothermal block 2 is nickel Lip river alloy, be provided with tested thermocouple jack 3 in the middle of it, tested thermopair (not shown in FIG.) is located in tested thermocouple jack 3, and the length of tested thermopair can be 80 millimeters; Described standard couple 7 is S type thermopair, and be arranged at body of heater 11 outside, be connected with high temperature alloy isothermal block 2 by power lead one end, the other end is connected with switch 8; The other end of described switch 8 connects electric measuring instrument 9; Described body of heater 11 overall length is 700 millimeters, and top is provided with assay furnace upper cover 10; Described well heater 1 and standard couple 7 are four groups, and four groups support the use, for detecting the stability of tested thermopair; When detecting tested thermopair, tested thermopair is connected on switch 8.
Claims (8)
1. a Combined thermocouple assay furnace, comprises well heater, high temperature alloy isothermal block, heating power supply line, controllable silicon, intelligent instrument, standard couple, switch, electric measuring instrument, assay furnace upper cover plate and body of heater; Described well heater is juxtaposed in body of heater, and is arranged by the heating power supply line parallel of its lower end, and described heating power supply line is drawn by lower end, body of heater side, is connected with controllable silicon and intelligent instrument in turn; The upper end of described well heater is provided with high temperature alloy isothermal block, is provided with tested thermocouple jack in the middle of described high temperature alloy isothermal block; Described standard couple is connected with high temperature alloy isothermal block by power lead one end, and the other end is connected with switch, and described standard couple is arranged at body of heater outside; The other end of described switch connects electric measuring instrument; Described upper of furnace body is provided with assay furnace upper cover.
2. a kind of Combined thermocouple assay furnace according to claim 1, is characterized in that: described standard couple is S type thermopair.
3. a kind of Combined thermocouple assay furnace according to claim 1, is characterized in that: described high temperature alloy isothermal block is nickel Lip river alloy.
4. a kind of Combined thermocouple assay furnace according to claim 2, is characterized in that: described body of heater overall length is 700 millimeters.
5. a kind of Combined thermocouple assay furnace according to claim 1, is characterized in that: described tested thermopair is located in tested thermocouple jack, the length of tested thermopair is 80 millimeters.
6. a kind of Combined thermocouple assay furnace according to claim 1, it is characterized in that: described well heater and standard couple are four groups, and four groups supports the use, for detecting the stability of tested thermopair.
7. a kind of Combined thermocouple assay furnace according to claim 1, is characterized in that: described well heater all adopts Resistant heating.
8. a kind of Combined thermocouple assay furnace according to claim 1, is characterized in that:
When detecting tested thermopair, tested thermopair is connected on switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835322.3U CN204330183U (en) | 2014-12-25 | 2014-12-25 | A kind of Combined thermocouple assay furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835322.3U CN204330183U (en) | 2014-12-25 | 2014-12-25 | A kind of Combined thermocouple assay furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204330183U true CN204330183U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420835322.3U Expired - Fee Related CN204330183U (en) | 2014-12-25 | 2014-12-25 | A kind of Combined thermocouple assay furnace |
Country Status (1)
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| CN (1) | CN204330183U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458061A (en) * | 2014-12-25 | 2015-03-25 | 上海冉曦电子仪器有限公司 | Combined thermocouple calibration furnace |
| CN106768424A (en) * | 2016-12-13 | 2017-05-31 | 苏州新长光热能科技有限公司 | The SAT tests mounting structure and its method of testing of furnace temperature detecting element |
| CN106768484A (en) * | 2016-11-25 | 2017-05-31 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of pyrometer couple calibrating installation |
| CN111323142A (en) * | 2020-03-13 | 2020-06-23 | 上海电气上重铸锻有限公司 | Method for testing furnace temperature uniformity and mounting thermocouple |
-
2014
- 2014-12-25 CN CN201420835322.3U patent/CN204330183U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458061A (en) * | 2014-12-25 | 2015-03-25 | 上海冉曦电子仪器有限公司 | Combined thermocouple calibration furnace |
| CN106768484A (en) * | 2016-11-25 | 2017-05-31 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of pyrometer couple calibrating installation |
| CN106768424A (en) * | 2016-12-13 | 2017-05-31 | 苏州新长光热能科技有限公司 | The SAT tests mounting structure and its method of testing of furnace temperature detecting element |
| CN106768424B (en) * | 2016-12-13 | 2023-08-08 | 苏州新长光热能科技有限公司 | Mounting structure of furnace temperature detection element for SAT test and test method thereof |
| CN111323142A (en) * | 2020-03-13 | 2020-06-23 | 上海电气上重铸锻有限公司 | Method for testing furnace temperature uniformity and mounting thermocouple |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |