CN101334322B - Method for measuring temperature, stress-strain and vibration of high-temperature double-layer pipeline - Google Patents
Method for measuring temperature, stress-strain and vibration of high-temperature double-layer pipeline Download PDFInfo
- Publication number
- CN101334322B CN101334322B CN2008101352303A CN200810135230A CN101334322B CN 101334322 B CN101334322 B CN 101334322B CN 2008101352303 A CN2008101352303 A CN 2008101352303A CN 200810135230 A CN200810135230 A CN 200810135230A CN 101334322 B CN101334322 B CN 101334322B
- Authority
- CN
- China
- Prior art keywords
- stress
- strain
- temperature
- interface box
- lead
- 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
- 238000000034 method Methods 0.000 title abstract description 6
- 239000011888 foil Substances 0.000 claims description 19
- 238000000691 measurement method Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 230000035882 stress Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
A method for measuring temperature, stress-strain and vibration of a high-temperature double-layer pipeline is characterized in that a thermocouple and a strain gauge are spot-welded at a position to be measured of an inner pipe of the double-layer pipeline, an accelerometer is installed at the position to be measured of the inner pipe, a lead of the thermocouple is directly connected with an interface box, the strain gauge is connected with the interface box through a bridge box and a static strain gauge, the accelerometer is connected with the interface box through a signal adapter, data collected by the interface box are transmitted to a data collecting and analyzing system, wherein a lead of a primary instrument such as the thermocouple, the strain gauge and the accelerometer is led out through a mouth of a connecting pipe welded on an outer pipe, and the lead of the mouth of the connecting pipe. The lead wires of the thermocouple, the strain gauge and the accelerometer are led out through a filler neck welded on the outer tube, so that the problem of lead wire sealing is solved. The measuring method is simple and practical.
Description
Technical field
The invention belongs to the physical measurement techniques field, be specifically related to a kind of temperature, stress-strain, vibration measurement method of pipeline.
Background technology
As cooling medium, its main heat-transfer system pipe temperature is up to 515 ℃, far above the trunk line temperature of pressurized-water reactor nuclear power plant with sodium for sodium-cooled fast reactor.Wherein the part pipeline section of secondary circuit main cooling system is a double-tube structure, maximum operating temperature is 495 ℃, it produces the potential cause that lost efficacy is that pipe stress, displacement, creep and vibration are excessive, therefore main heat-transfer system pipeline is carried out temperature, stress-strain, vibration survey in initial start and run duration, thereby find the defective that may exist in the system pipeline timely and effectively, keep in repair by predictability, the inefficacy hidden danger that influences the system pipeline safe operation is eliminated in bud, improved the security and the economy of reactor.
At present, domestic and international temperature, stress-strain, vibration measurement technique comparative maturity for common pipe, but not open about the pertinent literature of high-temperature double-layer duct survey, especially the measuring technique of the high-temperature double-layer pipeline under the radioactive environment does not have the open source literature report.
Summary of the invention
(1) goal of the invention
The present invention is directed to the deficiencies in the prior art, a kind of practical high-temperature double-layer pipe temperature, stress-strain, vibration measurement method are provided.
(2) technical scheme
For achieving the above object, the invention provides following technical scheme.
A kind of high-temperature double-layer pipe temperature, stress-strain, vibration measurement method, it is the position to be measured that thermopair, foil gauge point is welded in pipe in the double-skin duct, the position to be measured of pipe in accelerometer is installed in, the lead of thermopair directly connects with interface box, foil gauge connects with interface box by bridge box, statical strain indicator, accelerometer connects with interface box by the suitable instrument of transferring of signal, and the data transmission that interface box is gathered is given data acquisition and analysis system.Key is that the lead-in wire of thermopair, foil gauge, accelerometer is drawn by the pressure inlet that is welded on outer tube, passes through welded seal behind the pressure inlet lead-in wire.
In order to reduce the decay of measuring-signal as far as possible, guarantee the personal safety of survey crew simultaneously, above-mentioned secondary instrument is placed on the measurement point annex, and data acquisition and analytic system are arranged on the cold area, for example the pulpit.
(3) implementation result
The lead-in wire of thermopair, foil gauge, accelerometer is drawn by a pressure inlet that is welded on outer tube, has solved the problem of lead-in wire sealing.Measuring method is simple and practical.
Description of drawings
Fig. 1 measuring system synoptic diagram;
Fig. 2 takes over the pin configuration synoptic diagram.
Wherein, 1. interior pipe; 2. primary instrument; 3. outer tube; 4. take over; 5. go between; 6. secondary instrument.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further elaborated.
Present embodiment is measured temperature, stress-strain, the vibration of pipe in the sodium-cooled fast reactor secondary circuit trunk line.Finite element thermal-stress analysis result shows that the straight tube outside surface mainly is an axial stress, the hoop tension equals zero substantially, but there is hoop shear stress sometimes, and the hoop strain sheet can not measurement ring to shear stress, so straight tube outside surface measuring point mainly adopts two axial foil gauges of 180 degree symmetric arrangement, measures straight tube axial tension stress and bending stress.For shear stress straight tube significantly, replenish and install and axially behind the foil gauge of angle 45 degree, measure major principal stress.For bend pipe, because the principal direction of stress complexity is arranged to 90 degree rectangular rosettes with three foil gauges.The vibration survey point is positioned at the straight length behind second elbow after the main pump outlet.Pipe vibration is measured accelerometer and is adopted harmless connected mode to be directly installed on the pipeline, and the pipe vibration measurement point constitutes the three-dimensional measuring point by 3 accelerometers.In addition, be installed in vibration stress size and stress response spectrum that high temperature strain foil on the pipeline also can measuring channel, the foil gauge connection dynamic strain indicator that vibrates on the violent pipeline is measured the dynamic stress amplitude.
Participate in Fig. 1, a kind of high-temperature double-layer pipe temperature, stress-strain, Vibration-Measuring System mainly comprise primary instrument 2, secondary instrument 6 and data acquisition and analysis system.Before installation, primary instruments 2 such as high temperature strain foil, thermopair, counter are proofreaded, checked, in the spot welding of the scheduled measurement position of interior pipe 1 foil gauge, thermopair, counter are installed then.The lead-in wire 5 of foil gauge, thermopair, counter is drawn by the mouth of an adapter 4 by outer wall.Adapter 4 is welded by penetration weld with the outer tube of being responsible for 3, and the position 100～300mm to be measured of the interior pipe of distance, take over 4 mouth lead-in wire back employing silver-bearing copper welded seal, the wire melting temperature is 620 ℃～680 ℃, be lower than the temperature of fusion of lead 5, can damage wires 5.After lead 5 was drawn, the lead of thermopair directly connected with interface box, and foil gauge connects with interface box by bridge box, statical strain indicator, and accelerometer connects with interface box by the suitable instrument of transferring of signal, and the data transmission that interface box is gathered is given data acquisition and analysis system.In order to reduce the decay of signal as far as possible, secondary instrument is placed in the radiation environment of measurement point annex, and data acquisition and analytic system are arranged on the pulpit.
Claims (3)
1. high-temperature double-layer pipe temperature, stress-strain, vibration measurement method, be with thermopair, the foil gauge point is welded in the position to be measured of pipe (1) outer wall in the double-skin duct, accelerometer is installed in the position to be measured of interior pipe (1) outer wall, the lead of thermopair directly connects with interface box, foil gauge is by the bridge box, statical strain indicator connects with interface box, accelerometer connects with interface box by the suitable instrument of transferring of signal, the data transmission that interface box is gathered is given data acquisition and analysis system, it is characterized in that: described thermopair, foil gauge, the mouth of the adapter (4) of the lead-in wire (5) of these primary instruments of accelerometer (2) by being welded on outer tube (3) is drawn, and passes through welded seal after taking over the mouth lead-in wire of (4).
2. high-temperature double-layer pipe temperature according to claim 1, stress-strain, vibration measurement method is characterized in that: the straight tube outside surface adopts two axial foil gauges of 180 degree symmetric arrangement to measure straight tube axial tension stress and bending stress; For the bigger straight tube of shear stress, measure major principal stress behind the foil gauge of additional installation and axial angle 45 degree; Bend pipe adopts three foil gauges to be arranged to 90 degree rectangular rosettes and measures principle stress.
3. high-temperature double-layer pipe temperature according to claim 1, stress-strain, vibration measurement method, it is characterized in that: described bridge box, statical strain indicator, suitable instrument, these secondary instruments of interface box (6) transferred of signal are placed near the measurement point, and data acquisition and analysis system is arranged on the cold area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101352303A CN101334322B (en) | 2008-08-06 | 2008-08-06 | Method for measuring temperature, stress-strain and vibration of high-temperature double-layer pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101352303A CN101334322B (en) | 2008-08-06 | 2008-08-06 | Method for measuring temperature, stress-strain and vibration of high-temperature double-layer pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101334322A CN101334322A (en) | 2008-12-31 |
| CN101334322B true CN101334322B (en) | 2010-11-10 |
Family
ID=40197066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101352303A Active CN101334322B (en) | 2008-08-06 | 2008-08-06 | Method for measuring temperature, stress-strain and vibration of high-temperature double-layer pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101334322B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564651B (en) * | 2011-12-27 | 2014-03-12 | 中联重科股份有限公司 | Concrete pump truck, measuring device for conveying pipe of concrete pump truck and induction device mounting base of concrete pump truck |
| CN104043908A (en) * | 2013-03-11 | 2014-09-17 | 中国原子能科学研究院 | Sealing welding method for mounting high-temperature double-layer pipeline sensor |
| NO3074325T3 (en) | 2013-12-23 | 2018-02-24 | ||
| CN104990654A (en) * | 2015-07-06 | 2015-10-21 | 长安大学 | Remote online large-diameter heat supply pipeline strain monitoring device and remote online large-diameter heat supply pipeline strain detection method |
| CN106404260B (en) * | 2016-08-26 | 2018-12-25 | 中国石油天然气集团公司 | A kind of method for early warning based on pipeline axial direction monitor stress |
| CN107449457B (en) * | 2017-08-30 | 2019-09-17 | 宁波市鄞州通力液压电器厂 | Hydraulic inductive displacement transducer guide sleeve and its manufacturing method |
| CN109631825B (en) * | 2018-12-27 | 2021-04-13 | 常州英集动力科技有限公司 | Heat supply pipeline displacement measuring and diagnosing system and working method thereof |
| CN109540496B (en) * | 2019-01-10 | 2023-10-13 | 西南石油大学 | Experimental device and method for researching deformation strength of salt cavern conveying pipeline |
| CN110196121A (en) * | 2019-04-12 | 2019-09-03 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | A kind of regulating units welding point stress test method |
| CN110005906A (en) * | 2019-04-19 | 2019-07-12 | 北京豪特耐管道设备有限公司 | A kind of insulated piping and its manufacturing method |
| CN110213328A (en) * | 2019-04-26 | 2019-09-06 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | A kind of real-time stress acquisition data network transmission system of thermal power plant's high-temperature pipe |
| CN110398306B (en) * | 2019-07-08 | 2024-05-07 | 华电电力科学研究院有限公司 | Thermal power plant pipeline stress decoupling analysis system and analysis method |
| CN111664967B (en) * | 2020-06-22 | 2021-05-11 | 东风商用车有限公司 | Exhaust manifold thermal stress assessment device and method |
| CN113008948A (en) * | 2021-02-26 | 2021-06-22 | 中山大学 | Pressure container and defect detection method thereof |
| CN115435993B (en) * | 2022-09-01 | 2023-06-13 | 广州五所环境仪器有限公司 | Method and device for detecting vibration stress of pipeline of refrigeration system of environmental test box |
-
2008
- 2008-08-06 CN CN2008101352303A patent/CN101334322B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101334322A (en) | 2008-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334322B (en) | Method for measuring temperature, stress-strain and vibration of high-temperature double-layer pipeline | |
| CN205919126U (en) | Novel oil pipe leaks pressure detecting system | |
| CN102564334B (en) | Long period fiber grating strain gauge for micro strain detection of high-temperature pipes | |
| CN201622133U (en) | Magnetic force surface temperature sensor | |
| CN102426866A (en) | Monitoring method and system for leakage at pressure boundary of primary coolant system in nuclear power station | |
| CN103247358A (en) | High-energy pipeline local leakage monitoring test bed for nuclear power station | |
| CN204855454U (en) | High strength bolt defect detecting device | |
| CN104776808A (en) | Fiber grating sensor for monitoring the strain of the outer wall of high-temperature pressure pipeline online | |
| CN104766639A (en) | Nuclear reactor passive temperature measuring device based on thermoacoustic effect | |
| CN109243639A (en) | Nuclear reactor steam generator heat-transfer pipe micro-crack amount of leakage experimental provision and method | |
| JP5306561B1 (en) | Tube leak detection device and tube leak detection method | |
| CN205384238U (en) | Three -dimensional thermal expansion displacement real -time supervision early warning system of power station pressure vessel | |
| CN102818853B (en) | Gas turbine inlet channel temperature field measuring device and method based on acoustic method | |
| CN203053600U (en) | High-pressure multi-point flexible thermocouple with leak hunting device | |
| CN104235822B (en) | For leakage of pressure bearing pipe detection system and the method for overhung construction boiler | |
| CN203443696U (en) | Armored thermocouple | |
| CN105909910A (en) | On-line rubber lining integrality monitoring system | |
| CN105466645A (en) | System and method for quickly detecting air leakage factor of boiler tail flue | |
| US20150027663A1 (en) | Instrumented Steam Generator Anti-Vibration Bar | |
| CN203310854U (en) | Novel temperature compensation wind speed sensor | |
| CN209919140U (en) | Dynamic stress testing device for welding seam of steam guide pipe of steam turbine of supercritical unit | |
| CN102853937A (en) | Device for measuring multipoint temperature of surface of pipe system by temperature sensing optical wire in alumina dissolve out process | |
| CN204788462U (en) | Circulation water heat exchanger failure diagnosis experimental system based on wireless sensor | |
| CN212276043U (en) | Temperature sensing optical cable pipeline structure based on self-heating package | |
| CN210268563U (en) | High temperature pipeline circumference on-line monitoring system |
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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Mi Inventor after: Yu Huajin Inventor after: Ye Yuanwu Inventor after: Tang Long Inventor after: Liu Jiayi Inventor after: Wang Yueying Inventor after: Qi Min Inventor before: Yu Huajin Inventor before: Ye Yuanwu Inventor before: Tang Long Inventor before: Liu Jiayi Inventor before: Wang Yueying Inventor before: Qi Min |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU HUAJIN YE YUANWU TANG LONG LIU JIAYI WANG YUEYING QI MIN TO: XU XU YU HUAJIN YE YUANWU TANG LONG LIU JIAYI WANG YUEYING QI MIN |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Mi Inventor after: Yu Huajin Inventor after: Ye Yuanwu Inventor after: Tang Long Inventor after: Qi Min Inventor after: Yu Danping Inventor after: Wang Yueying Inventor after: Liu Jiayi Inventor before: Xu Mi Inventor before: Yu Huajin Inventor before: Ye Yuanwu Inventor before: Tang Long Inventor before: Liu Jiayi Inventor before: Wang Yueying Inventor before: Qi Min |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XU MI YU HUAJIN YE YUANWU TANG LONG LIU JIAYI WANG YUEYING QI MIN TO: XU MI YU HUAJIN YE YUANWU TANG LONG QI MIN YU DANPING WANG YUEYING LIU JIAYI |