CN103542946B - A kind of temperature sensing assembly - Google Patents
A kind of temperature sensing assembly Download PDFInfo
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- CN103542946B CN103542946B CN201210241146.6A CN201210241146A CN103542946B CN 103542946 B CN103542946 B CN 103542946B CN 201210241146 A CN201210241146 A CN 201210241146A CN 103542946 B CN103542946 B CN 103542946B
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Abstract
This method relates to a kind of thimble assembly; It is made up of the sleeve pipe integral component with little flange of fine aluminium material and large flange; Flange on large flange and reactor is connected and fixed by 8 bolts; Little flange is fixed on large flange, is fixed by 4 nut bolts; Cannula tip is with connecting groove, and after thermal resistance inserts sleeve pipe, thermal resistance connection terminal is stayed in connecting groove, by outer conductor, resistance signal is spread out of; Connecting groove top is with lid, and lid is threaded connection fixing, and the depth of thread is 10mm; When carrying out temperature detection to polymkeric substance, using this assembly, not scabbing, easily extracting, improve measuring accuracy, reduce maintenance.
Description
Technical field
The temperature that the present invention relates to a kind of commute stammerer polymkeric substance in aluminum reactor carries out the detection components that detects.
Background technology
With temperature detection technology for foundation, in conjunction with the feature of polymkeric substance in aluminum reactor, background technology is described below:
1. polymkeric substance generative process and temperature detection situation:
After these four kinds of materials of oxygenant, reductive agent, mix monomer, BME enter polymer reactor, issue biochemical reaction the temperature of 62 DEG C, generate polymkeric substance.This reaction is a kind of themopositive reaction, if do not controlled reactor temperature, it is overheated to cause in still, and makes the polymkeric substance of generation produce implode formation solid, produces like this and cannot carry out.Therefore, reactor temperature must be controlled at about 62 DEG C.Temperature control scheme is: insert resistance and temperature detecting element from reactor head, its output signal gives computing machine, removed the salt water regulating valve controlling to enter in reactor jacket by computing machine, regulate-9 DEG C of brine flows to reach the object of control temperature by variable valve.Temperature of reactor background detection method is: being about 200mm place in reactor head apart from edge has a diameter to be the temperature detection jack of Ф 40, and height is 100mm.Temperature detection casing diameter is Ф 20, and inserting deeply is 400mm, and material is stainless steel (316L).Detection jack and temperature sleeves flange are fixed, and thermal resistance inserts in sleeve pipe and carries out temperature detection.
2. background detection technology Problems existing:
1) polymkeric substance that in reactor, reaction generates is white viscous liquid, when stainless steel temperature sleeves inserts and carries out temperature detection in still, scabs serious.About two weeks, the thickness of scar just reaches 20mm sometimes, has a strong impact on measuring accuracy.
2) because temperature of reactor jack aperture only has Ф 40, the gap between thermal resistance sleeve pipe and the jack of still is little, and the time one is long, and polymkeric substance forms solid very easily herein, occurs scabbing, and temperature sleeves is fixed, and is difficult to extract out.
Summary of the invention
The object of this invention is to provide a kind of temperature sensing assembly, in aluminum reactor, the temperature of commute stammerer polymkeric substance detects, and realizes temperature sleeves when inserting polymkeric substance and carrying out temperature detection, does not scab, easily extracts, improve measuring accuracy, reduce maintenance.
A kind of temperature sensing assembly of the present invention is a kind of temperature detection thimble assembly.It is made up of with sleeve pipe integral component and large flange the little flange of fine aluminium material.Invention temperature sensing assembly content is as follows:
1. fine aluminium material elected as by assembly:
According to electrode corrosion principle, two electrodes in conducting medium will form primary element, and positive pole constantly will obtain electronics and protected, and negative pole is corroded constantly losing electronics.Active metal becomes negative pole owing to easily losing electronics, and torpescence metal obtains electronics and becomes positive pole.
In the reactor, polymkeric substance contains different kinds of ions, makes polymkeric substance become conducting medium.The material of reactor wall is aluminium alloy, and the material of reactor stirring arm is fine aluminium, and temperature sleeves material is originally stainless steel.In other words, among this three, stirring arm the most easily corrodes and not easily scabs, and the temperature sleeves of stainless steel least easily corrodes and easily scabs.This is the reason that easily scabs of the sleeve pipe of stainless steel just also.
After stainless steel sleeve pipe is changed into fine aluminium sleeve pipe, in reactor, stirring arm, this three of temperature sleeves, stirring arm and temperature sleeves are active metals, and reactor wall is relatively inactive alloy.So stirring arm and sleeve pipe become negative pole in primary element loop, the most easily corrode and are not easy to scab, and the reactor wall of aluminum alloy material becomes positive pole protected.Aluminium material sleeve pipe does not in use scab, but can be corroded.Prove through practical application, within about 1 year, sleeve pipe is changed once.
2. change detection aperture
The detect aperture aperture of reactor head avris is Ф 40, changes now Ф 100 into.This just makes gap between sleeve pipe and jack become large, and polymkeric substance scabs and sleeve pipe is fixed the dead cycle greatly lengthens between hole wall and sleeve pipe.
3. design thimble assembly:
Thimble assembly structure is as accompanying drawing 1, and mounting flange has size two, is separated from each other.During installation, with being bolted to together.Little flange and sleeve pipe are an entirety, being one block of material, processing together adding man-hour.Large flange is processed separately.Sleeve pipe material is fine aluminium (purity reaches 99.6%).Under normal circumstances, when checking sleeve pipe or verification resistance, only dismantle little flange, this is for convenient disassembly, reduces workload and arrange.Extract the situation of difficulty if there is dismounting, extract sleeve pipe by dismounting large flange.
Large flange diameter is φ 210, and thickness is 32mm, and erection bolt hole center distance is 175mm, and adopt M19 bolt to install fixing, bolt aperture is φ 19.Have 8 mounting holes.The bolt aperture that large flange is fixed little flange is φ 16, and hole depth is 20mm, has 4 mounting holes.Little flange diameter is φ 140, and thickness is 20mm, and bolt hole center's spacing of little flange is 105mm.Distance between temperature detection casing shoe to little flange is 400mm, casing shoe external diameter is φ 15, internal diameter is φ 7, the cover pipe range of little flange upper end is 100mm, it is φ 7 that thermal resistance installs aperture, and sleeve pipe and junction, little flange upper end external diameter are φ 40, and the sleeve pipe of little flange lower end is taper, tapering is the external diameter that φ 40 changes to casing shoe from little flange lower end sleeve outer is φ 15, gradient even variation.Cannula tip is with connecting groove, and wiring groove depth is 25mm, and diameter is φ 30, and with external thread.
Sleeve pipe changes aluminium material into and after changing mounting hole, temperature sleeves does not scab, not easily fixing dead at mounting hole by polymkeric substance, make temperature detection accurately, extract easily, reduce maintenance.
Accompanying drawing explanation
Fig. 1 thimble assembly figure
Fig. 2 large flange vertical view
Fig. 3 large flange side view
In Fig. 1: 1, large flange bolt aperture; 2, large flange thickness; 3, little flange bolt aperture; 4, little flange bolt hole depth; 5, large flange external diameter; 6, large flange bolt hole center spacing; 7, little flange bolt hole center distance; 8, little flange upper sleeve portion external diameter; 9, casing inner diameter; 10, the depth of thread of connecting groove screw capping; 11, connecting groove aperture; 12, the connecting groove degree of depth; 13, little flange upper sleeve portion is long; 14, little flange thickness; 15, little flange diameter; 16, sleeve pipe is inserted dark; 17, casing shoe thickness; 18, casing shoe external diameter.
Embodiment
This method relates to a kind of temperature detection thimble assembly.It is made up of the sleeve pipe integral component with little flange of fine aluminium material and large flange.Flange on large flange and reactor is connected and fixed by 8 bolts.Little flange is fixed on large flange, is fixed by 4 nut bolts.Cannula tip is with connecting groove, and after thermal resistance inserts sleeve pipe, thermal resistance connection terminal is stayed in connecting groove, by outer conductor, resistance signal is spread out of.Connecting groove top is with lid, and lid is connected and fixed by screw thread 10.Sleeve external thread 10 degree of depth is 10mm.Large flange diameter 5 is φ 210, and thickness 2 is 32mm, and erection bolt hole center distance 6 is 175mm, and erection bolt aperture 1 is φ 19.The bolt aperture 3 of little flange is φ 16, and hole depth 4 is 20mm.Little flange thickness 14 is 20mm, and little flange diameter 15 is φ 140, and bolt hole center's spacing 7 of little flange is 105mm.Distance 16 between temperature detection casing shoe to little flange is 400mm, and casing inner diameter 9 is φ 7.The cover pipe range 13 of little flange upper end is 100mm, and be φ 40 with junction, little flange upper end sleeve outer 8, little flange upper sleeve portion external diameter is identical.Cannula tip wiring groove depth 12 is 25mm, and wire casing diameter 11 is φ 30.Casing shoe thickness 17 is 10mm, and casing shoe external diameter 18 is φ 15.
This method has been applied in acrylic fibers device reaction device, have received the effect of anticipation.Before not adopting this method, after thermal resistance uses several days, temperature detection sensitivity just starts to decline gradually, and hysteresis phenomenon increases, and must carry out dismounting sleeve pipe clear up less than one month.Often occur that sleeve pipe is fixed in detect aperture by solid dielectric to extract not out, or can not get out from detect aperture because sleeve pipe scabs too large.After medium scabs, very hard as the plastics, extract very difficult.During extraction, often sleeve pipe is made a mess of.
After adopting this method, because sleeve pipe does not scab, there is not temperature detection hysteresis phenomenon.Temperature detection is quick on the draw, and extracts and just must facilitate easily.Because detect aperture becomes Ф 100 from Ф 40, detect aperture is lengthened greatly by the cycle that solid dielectric blocks.Here is that a reactor adopts the relevant data added up before and after neoteric sleeve pipe:
In June, 2009-2010 year June is former detection thimble failure condition, and-2011 years 6 in June, 2010 is the moon neoteric detection thimble failure condition.Can be found out by above data, adopt neoteric sleeve pipe, failure rate reduces greatly.
Claims (7)
1. a temperature detection thimble assembly, is characterized in that: it is made up of the sleeve pipe integral component with little flange of fine aluminium material and large flange; Described little flange and sleeve pipe are a global formation; Flange on large flange and reactor is connected and fixed by 8 bolts; Little flange is fixed on large flange, is fixed by 4 nut bolts; Cannula tip is with connecting groove, and after thermal resistance inserts sleeve pipe, described sleeve pipe stretches into the detection jack of reactor head avris, and described detection jack aperture is 100mm, and thermal resistance connection terminal is stayed in connecting groove, by outer conductor, resistance signal is spread out of; Connecting groove top is with lid, and lid is threaded connection fixing, and the depth of thread is 10mm.
2. temperature detection thimble assembly according to claim 1, is characterized in that: large flange diameter is 210mm, and thickness is 32mm, and erection bolt hole center distance is 175mm, and erection bolt aperture is 19mm.
3. temperature detection thimble assembly according to claim 1, is characterized in that: the bolt aperture of little flange is 16mm, and hole depth is 20mm; Little flange diameter is 140mm, and little flange thickness is 20mm, and bolt hole center's spacing of little flange is 105mm.
4. temperature detection thimble assembly according to claim 1, is characterized in that: the distance between temperature detection casing shoe to little flange is 400mm, and casing shoe external diameter is 15mm, and internal diameter is 7mm.
5. temperature detection thimble assembly according to claim 1, is characterized in that: the cover pipe range of little flange upper end is 100mm, and sleeve pipe and junction, little flange upper end external diameter are 40mm, and little flange upper sleeve portion external diameter is identical.
6. temperature detection thimble assembly according to claim 1, is characterized in that: cannula tip wiring groove depth is 25mm, and wire casing diameter is 30mm.
7. temperature detection thimble assembly according to claim 1, is characterized in that: casing shoe thickness is 10mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241146.6A CN103542946B (en) | 2012-07-12 | 2012-07-12 | A kind of temperature sensing assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241146.6A CN103542946B (en) | 2012-07-12 | 2012-07-12 | A kind of temperature sensing assembly |
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| CN103542946A CN103542946A (en) | 2014-01-29 |
| CN103542946B true CN103542946B (en) | 2016-03-09 |
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| CN201210241146.6A Active CN103542946B (en) | 2012-07-12 | 2012-07-12 | A kind of temperature sensing assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105067148A (en) * | 2015-09-19 | 2015-11-18 | 成都创年科技有限公司 | Special liquid temperature detection combined device for chemical experiment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042589U (en) * | 1988-08-06 | 1989-08-09 | 国家机械工业委员会上海工业自动化仪表研究所 | Protective tube thermocouple for recrystallization of carbofrax |
| CN2092750U (en) * | 1991-03-08 | 1992-01-08 | 吴加伦 | Multipoint explosion-proof type thermocouple |
| SU1744519A1 (en) * | 1989-09-18 | 1992-06-30 | Научно-исследовательский технологический институт | Temperature measuring device |
| CN2529224Y (en) * | 2002-02-05 | 2003-01-01 | 于国庆 | Multi-stage protection scouring-resistant temperature measuring head |
| US6523998B1 (en) * | 2001-01-26 | 2003-02-25 | Ta Instruments, Inc. | Thermal analysis assembly with distributed resistance and integral flange for mounting various cooling devices |
| CN202041312U (en) * | 2011-05-04 | 2011-11-16 | 山东山水水泥集团有限公司 | Thermocouple sleeve protecting device and connecting structure of thermocouple sleeve protecting device and cyclone furnace |
-
2012
- 2012-07-12 CN CN201210241146.6A patent/CN103542946B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042589U (en) * | 1988-08-06 | 1989-08-09 | 国家机械工业委员会上海工业自动化仪表研究所 | Protective tube thermocouple for recrystallization of carbofrax |
| SU1744519A1 (en) * | 1989-09-18 | 1992-06-30 | Научно-исследовательский технологический институт | Temperature measuring device |
| CN2092750U (en) * | 1991-03-08 | 1992-01-08 | 吴加伦 | Multipoint explosion-proof type thermocouple |
| US6523998B1 (en) * | 2001-01-26 | 2003-02-25 | Ta Instruments, Inc. | Thermal analysis assembly with distributed resistance and integral flange for mounting various cooling devices |
| CN2529224Y (en) * | 2002-02-05 | 2003-01-01 | 于国庆 | Multi-stage protection scouring-resistant temperature measuring head |
| CN202041312U (en) * | 2011-05-04 | 2011-11-16 | 山东山水水泥集团有限公司 | Thermocouple sleeve protecting device and connecting structure of thermocouple sleeve protecting device and cyclone furnace |
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| CN103542946A (en) | 2014-01-29 |
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