CN102778303A - Flange plate wiring terminal for temperature measurement of vacuum furnace - Google Patents
Flange plate wiring terminal for temperature measurement of vacuum furnace Download PDFInfo
- Publication number
- CN102778303A CN102778303A CN2012102588381A CN201210258838A CN102778303A CN 102778303 A CN102778303 A CN 102778303A CN 2012102588381 A CN2012102588381 A CN 2012102588381A CN 201210258838 A CN201210258838 A CN 201210258838A CN 102778303 A CN102778303 A CN 102778303A
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- China
- Prior art keywords
- wiring terminal
- flange plate
- binding post
- temperature measurement
- furnace
- 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.)
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- 238000009529 body temperature measurement Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000001291 vacuum drying Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 229910018487 Ni—Cr Inorganic materials 0.000 description 4
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a flange plate wiring terminal for temperature measurement of a vacuum furnace. A flange plate is provided with a wiring terminal; according to standard requirements, stereo measurement is carried out in an effective heating zone; and thermocouples are uniformly distributed on any plane within an effective heating work space. A temperature measurement port is arranged under a furnace door of a furnace body; an original cover plate is removed during measurement, and the flange plate with the wiring terminal is installed; a sealing washer is sleeved in the middle part of the wiring terminal, and the wiring terminal sleeved with the sealing washer is inserted to a flange plate which is drilled in advance; and then rubber washers are respectively sleeved into the two ends of the wiring terminal and are compressed tightly by using nuts. The flange plate wiring terminal is made of the same material as the thermocouples mainly, and the two ends of the wiring terminal are made into screw threads; compensating lead wires are fastened to the wiring terminal by using nuts during use. The wiring terminal provided by the invention has a compensating effect, and solves the problem of the temperature measurement error of the vacuum furnace and effectively shows the real temperature of the furnace.
Description
Technical field
The invention belongs to the vacuum drying oven field, particularly relate to the temp measuring system of vacuum drying oven.
Background technology
What the ring flange binding post that the vacuum drying oven thermometric of vacuum drying oven manufacturer production is at present used was used all is copper material, when temperature uniformity detects, does not have the effect of compensation, and vacuum drying oven thermometric ring flange inside and outside wall can be because of the error of temperature difference generation.Carrying out vacuum drying oven (heat-treatment furnace) temperature uniformity mensuration, is to consider sealing problem, adopts the ring flange form to connect temperature thermocouple and the outer testing tool of stove in the stove usually.Binding post is arranged on the ring flange, and according to standard-required, effectively the mode of measurement in space is taked in the heating zone, in effective heating work space, is evenly equipped with thermopair in arbitrary plane.One temperature-measuring port is arranged below the fire door of body of heater; Pull down former cover plate during measurement; Install the ring flange that has binding post, be inserted in packing washer in the middle of the binding post, the binding post of the good packing washer of grip inserts on the prior hole-drilled ring flange; Be inserted in the binding post two ends to rubber washer respectively again, compress with nut.Ring flange is contained on the temperature-measuring port.Because of having packing washer, rubber washer to compress sealing between binding post and the ring flange, in case leak-stopping gas.Binding post is made the threaded pole in two with copper material, during use, connects thermopair and surveying instrument respectively at the ring flange inside and outside wall.Through repeated detection, the temperature in observed temperature value and the vacuum drying oven stove has error, and the reason that error produces is relevant with the joint of thermopair connection, just with ring flange on binding post relevant, binding post does not have the effect of compensation.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention transforms the ring flange binding post that the vacuum drying oven thermometric is used, and has solved vacuum drying oven temperature measurement error problem, has effectively reflected true temperature in the stove.
When thermopair and surveying instrument distance is far away, uses extension wire to extend to the cold junction of thermopair in the relatively stable environment of temperature and compensate.Between thermopair and extension wire, just connected a connector.If joint material and thermocouple extension wire have the characteristic that varies in size, can on the joint section, keep the small temperature difference that to omit.This can go into the metal law from indirect and obtain checking.The middle metal law that inserts: if whole loop is in uniform temperature.So, no matter in the loop that the how many kinds of different materials constitutes, the algebraic sum of thermopower is zero.From this law inference be: the 3rd even metal is to insert the loop, as long as its two ends are in uniform temp, to the just not influence of clean electromotive force in loop.Therefore, can insert the device of measuring thermopower on the optional position in loop,, so just can not influence the measurement result of electromotive force as long as each contact that makes measurement mechanism insert the loop all is in uniform temp.Also can reason out: any temperature evenly and the contact of excellent electric contact arranged all not have to influence to the electromotive force in thermoelectric loop.
Therefore, being striden by the joint of the third made under the in esse thermograde situation, between thermoelectric material and connector end, just produce undesirable electromotive force, they show as the thermopair output error.The value of this error and relevant material and the interior variation of joint two ends temperature difference institute decision scope.Producing reasons of error is binding post material and thermopair material inconsistent (pyroelecthc properties is inconsistent) on the ring flange, the good temperature difference of Compensating flange dish inside and outside wall, thus bring the deviation of thermometric.
For solving because of joint material and thermopair, the different errors that produce of compensating wire material, the ring flange binding post is used and the temperature thermocouple same material is made.For example the thermometric galvanic couple uses nickel chromium triangle-nisiloy, and binding post is just with nickel chromium triangle-nisiloy material.Screw thread is made at binding post two, is fastened on compensating wire on the binding post with nut during use.If the thermometric galvanic couple is other model, do binding post with regard to material with same model.
Compared with prior art, the technique effect that the present invention reaches is: binding post plays the effect of compensation, has solved vacuum drying oven temperature measurement error problem, effectively true temperature in the reacting furnace.
Description of drawings
Fig. 1 is a thermometric synoptic diagram of the present invention
Among the figure: 1-temperature instrumentation link position, 2-compensating wire, 3-compensating wire, 4-temperature thermocouple, 5-ring flange binding post A, 6-ring flange binding post B
Embodiment
In order to deepen that the present invention is understood, below in conjunction with embodiment the present invention is described in further detail, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
Fig. 1 is a thermometric synoptic diagram of the present invention, is carrying out the vacuum drying oven measure temperature in furnace, and the practical implementation step is following:
The first step: because the thermometric galvanic couple uses nickel chromium triangle-nisiloy, the ring flange binding post does not use original copper binding post, adopts the binding post of nickel chromium triangle-nisiloy material.
Second step: screw thread is processed at binding post two in advance, is fastened on line on the binding post with nut during use.
The 3rd step: connect temperature instrumentation.
The 4th step: carry out the vacuum drying oven measure temperature in furnace.
Claims (2)
1. the ring flange binding post that the vacuum drying oven thermometric is used is characterized in that: said binding post usefulness and the making of temperature thermocouple same material.
2. ring flange binding post that the described vacuum drying oven thermometric of claim 1 is used, it is characterized in that: screw thread is made at binding post two, is fastened on compensating wire on the binding post with nut during use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102588381A CN102778303A (en) | 2012-07-24 | 2012-07-24 | Flange plate wiring terminal for temperature measurement of vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102588381A CN102778303A (en) | 2012-07-24 | 2012-07-24 | Flange plate wiring terminal for temperature measurement of vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102778303A true CN102778303A (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102588381A Pending CN102778303A (en) | 2012-07-24 | 2012-07-24 | Flange plate wiring terminal for temperature measurement of vacuum furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102778303A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115692A (en) * | 2013-01-23 | 2013-05-22 | 宁波松科磁材有限公司 | Temperature measuring flange for neodymium-iron-boron sintering |
| CN103615890A (en) * | 2013-12-18 | 2014-03-05 | 西南铝业（集团）有限责任公司 | Temperature measurement and material ejection device of induction furnace |
| CN107991002A (en) * | 2018-01-23 | 2018-05-04 | 深圳力士智造科技有限公司 | A kind of temp measuring system and temperature measurement of vacuum furnace compensation method for vacuum drying oven |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155220A (en) * | 1979-05-23 | 1980-12-03 | Toshiba Corp | Lead terminal of thermocouple |
| CN101158606A (en) * | 2007-11-16 | 2008-04-09 | 扬州大学 | Heating system temperature difference measuring instrument |
| CN201444086U (en) * | 2009-07-10 | 2010-04-28 | 沈阳东大传感技术有限公司 | Framework type wire connector of temperature sensor |
| KR200450290Y1 (en) * | 2008-09-01 | 2010-09-17 | 우진 일렉트로나이트(주) | Engine exhaust gas temperature sensing element |
| CN201876322U (en) * | 2010-10-22 | 2011-06-22 | 成都发动机（集团）有限公司 | External sealing device of armoured thermocouple for vacuum furnace |
-
2012
- 2012-07-24 CN CN2012102588381A patent/CN102778303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155220A (en) * | 1979-05-23 | 1980-12-03 | Toshiba Corp | Lead terminal of thermocouple |
| CN101158606A (en) * | 2007-11-16 | 2008-04-09 | 扬州大学 | Heating system temperature difference measuring instrument |
| KR200450290Y1 (en) * | 2008-09-01 | 2010-09-17 | 우진 일렉트로나이트(주) | Engine exhaust gas temperature sensing element |
| CN201444086U (en) * | 2009-07-10 | 2010-04-28 | 沈阳东大传感技术有限公司 | Framework type wire connector of temperature sensor |
| CN201876322U (en) * | 2010-10-22 | 2011-06-22 | 成都发动机（集团）有限公司 | External sealing device of armoured thermocouple for vacuum furnace |
Non-Patent Citations (1)
| Title |
|---|
| 刘丹英: "真空炉温场测试方法", 《航空计测技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115692A (en) * | 2013-01-23 | 2013-05-22 | 宁波松科磁材有限公司 | Temperature measuring flange for neodymium-iron-boron sintering |
| CN103615890A (en) * | 2013-12-18 | 2014-03-05 | 西南铝业（集团）有限责任公司 | Temperature measurement and material ejection device of induction furnace |
| CN103615890B (en) * | 2013-12-18 | 2015-04-29 | 西南铝业（集团）有限责任公司 | Temperature measurement and material ejection device of induction furnace |
| CN107991002A (en) * | 2018-01-23 | 2018-05-04 | 深圳力士智造科技有限公司 | A kind of temp measuring system and temperature measurement of vacuum furnace compensation method for vacuum drying oven |
| CN107991002B (en) * | 2018-01-23 | 2024-05-31 | 深圳力士智造科技有限公司 | Temperature measurement system for vacuum furnace and temperature measurement compensation method for vacuum furnace |
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Application publication date: 20121114 |