CN107560946A - It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance - Google Patents
It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance Download PDFInfo
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- CN107560946A CN107560946A CN201710872042.8A CN201710872042A CN107560946A CN 107560946 A CN107560946 A CN 107560946A CN 201710872042 A CN201710872042 A CN 201710872042A CN 107560946 A CN107560946 A CN 107560946A
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- tubing
- pressure
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- creep
- performance
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 239000011888 foil Substances 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000005253 cladding Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of pilot system for collapsing performance for detecting tubing creep, pilot system includes experimental rig, pressue device and the detection means being connected with test unit.The present invention be used for detect the pilot system that tubing creep collapses performance, various sizes of sample can be tested, and the first adapter, the second adapter and the pressure-bearing pipe of the present invention makes simple, cost is cheap, and tubing creep, which collapses foil gauge in performance detection unit and pressure transmitter, can use the relatively conventional product in market, therefore, the pilot system of the present invention makes simple, dependable performance, testing cost is low, easy to operate.The invention further relates to a kind of detection method for collapsing performance for detecting tubing creep, the automation of its detection process, detection difficulty very little, the creep of the tubing of detection to collapse performance accurate information.
Description
Technical field
The present invention relates to a kind of pilot system and detection method for collapsing performance for detecting tubing creep.
Background technology
Cladding nuclear fuels tubing is widely used in power reactor cladding materials, but cladding materials is operated in high temperature and high pressure environment
In, the pressure and thermal stress of external coolant are one of main aspects, for accidental conditions, design criteria requirement, whole
In the individual design phase in longevity, fuel can should not occur creep and cave in, and prevent involucrum possible rupture caused by creep is caved in.Reacting
Stack operation initial stage, under coolant pressure and operating temperature effect, fuel can must be supported oneself, because now fuel is institute-level
Internal pressure is minimum, and the pressure difference that involucrum is born is maximum.To failure operation situation, although involucrum mechanically supported situation has improved, because
Clad temperature is higher, and material mechanical performance deteriorates, it is necessary to involucrum instantaneous collapse problem is tested, it is to support oneself to ensure involucrum
's.In addition, HTGR is in helium environment with heat-transfer pipe inside and outside, internal and external temperature is respectively 900 DEG C and 920 DEG C.
In the case of normal reactor operation, heat-transfer pipe external and internal pressure is 4MPa or so, differs less than 0.3MPa.But accident bar
Under part, overpressure is lost, and heat-transfer pipe very likely occurs creep in 920 DEG C, 4MPa environment and collapsed.
The content of the invention
It is an object of the invention to provide a kind of performance is collapsed by detecting the load performance of tubing and then detection tubing creep
Pilot system.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
It is a kind of to be used to detect the pilot system that tubing creep collapses performance, pilot system include experimental rig, pressue device and with
The detection means of experimental rig connection, experimental rig include the first adapter being oppositely arranged and the second adapter, both ends difference
The pressure-bearing pipe being connected with the first adapter and the second adapter, tubing be detachably connected on the first adapter and the second adapter it
Between, the outer wall of tubing, the inwall of pressure-bearing pipe, the first adapter the inner and the second adapter the inner between surround it is closed
Pressurizing chamber；Pressue device connects with pressurizing chamber, for providing hydraulic pressure into pressurizing chamber；Detection means includes being used to measure outside tubing
The pressure sensor of wall pressure power and the signal acquisition process unit electrically connected with pressure sensor.
Preferably, pressure sensor includes foil gauge, the pressure inverting electrically connected with foil gauge for being attached at outer pipe wall
Device, signal acquisition process unit include capture card and the computer of selectivity.
Preferably, pressue device include insertion be arranged on the first adapter or pressurization passageway on the second adapter and with
The booster pump that pressurization passageway is connected by pipeline.
Preferably, the first adapter and the second adapter are all provided with the surface of pressure-bearing pipe junction and the end face of pressure-bearing pipe
There is seal groove, sealing ring is provided with seal groove.
Preferably, sealing ring is fluorine glue sealing ring.
Preferably, the temperature in use of sealing ring is 0 ~ 220 DEG C.
Preferably, the range of pressure transmitter is 0 ~ 250MPa.
Preferably, the measurement accuracy of pressure transmitter is ± 0.5MPa.
Preferably, the material of pressure-bearing pipe is 316 stainless steels.
Preferably, the length of pressure-bearing pipe be 190-210mm, a diameter of 28-32mm, wall thickness 5-6mm.
The invention further relates to a kind of detection method for collapsing performance for detecting tubing creep, detection method is included using this
The tubing creep that is used to detect of invention collapses the pilot system of performance and collapsed carrying out tubing creep and tests and carry out pressure test.
Further, tubing creep collapses the detection method of performance and comprised the following steps：
1., the both ends of tubing to be detected and the both ends of pressure-bearing pipe are connected with the first adapter and the second adapter respectively, it is complete
Assembled into experimental rig；
2., pressue device connected with the pressurizing chamber of experimental rig, open pressue device be constantly passed through to pressurizing chamber inside plus
Press liquid, while real-time pressure data is obtained by detection means.
3., according to the real-time pressure data obtained judge that tubing creep collapses performance.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
The present invention be used for detect the pilot system that tubing creep collapses performance, various sizes of sample can be tested,
Detection process automates, detection difficulty very little, and the creep of the tubing of detection collapses performance accurate information, and the first of the present invention
Adapter, the second adapter and pressure-bearing pipe make simply, and cost is cheap, and tubing creep collapses the strain in device for detecting performance
Piece and pressure transmitter can use the relatively conventional product in market, and therefore, pilot system of the invention makes simply, and performance can
Lean on, testing cost is low, easy to operate.
Brief description of the drawings
Fig. 1 is the concrete structure schematic diagram of the pilot system of the present invention；
Fig. 2 is the pressure history that the experiment of embodiment 2 obtains；
Wherein：1st, the first adapter；2nd, the second adapter；3rd, pressure-bearing pipe；31,31 ', sealing ring；4th, pressurizing chamber；40th, pressurization is logical
Road；41st, booster pump；5th, capture card；6th, computer；8th, foil gauge；9th, pressure transmitter.
Embodiment
The invention will be further described for shown embodiment below in conjunction with the accompanying drawings：
Embodiment 1
As shown in figure 1, a kind of be used to detect the pilot system that the creep of tubing 100 collapses performance, pilot system include experimental rig,
Pressue device and the detection means being connected with experimental rig, experimental rig include the first adapter 1 being oppositely arranged and second turn
The pressure-bearing pipe 3 that joint 2, both ends are connected with the first adapter 1 and the second adapter 2 respectively, tubing 100 are detachably connected on first
Between the adapter 2 of adapter 1 and second, the outer wall of tubing 100, the inwall of pressure-bearing pipe 3, the inner and the of the first adapter 1
Closed pressurizing chamber 4 is surrounded between the inner of two adapters 2；Pressue device connects with pressurizing chamber 4, for being carried into pressurizing chamber 4
Feed flow pressure；Detection means includes what is be used for the pressure sensor for measuring the outer wall pressure of tubing 100 and electrically connected with pressure sensor
Signal acquisition process unit.
Specifically, pressure sensor includes being attached at the foil gauge 8 of the outer wall of tubing 100, the pressure electrically connected with foil gauge 8
Transmitter 9, signal acquisition process unit include capture card 5 and the computer 6 of selectivity；Pressue device is arranged on including insertion
One adapter 1 or pressurization passageway 40 on the second adapter 2 and the booster pump 41 being connected with pressurization passageway 40 by pipeline.
Further, the first adapter 1 and the second adapter 2 and the surface of the junction of pressure-bearing pipe 3 and the end of pressure-bearing pipe 3
Face is equipped with seal groove, and sealing ring 31,31 ' is provided with seal groove；Sealing ring 31,31 ' is fluorine glue sealing ring, and its temperature in use is
0~220℃；The range of pressure transmitter 9 is 0 ~ 250MPa, and the measurement accuracy of pressure transmitter 9 is ± 0.5MPa；Pressure-bearing pipe 3
Material is 316 stainless steels, and the length of pressure-bearing pipe 3 is 200mm, a diameter of 30mm, wall thickness 5mm.
Situation is as follows when the experimental rig that the tubing creep of the present invention collapses performance uses：
Tubing 100 to be tested and pressure-bearing pipe 3 are connected with the first adapter 1 and the second adapter 2, in the first adapter 1, second
It is pressurizing chamber 4 that confined space is formed between adapter 2, pressure-bearing pipe 3 and tubing 100, opens the booster pump 41 of pressue device
Carried into pressurizing chamber 4 and be passed through hydraulic oil, pressed to tubing 100, pressure gradually rise to a certain degree when, tubing 100 can produce
Collapse, deform, being attached at the foil gauge 8 in the outside of tubing 100 can deform with the deformation of tubing 100（Pipe can be perceived
The deformation of material 100）, while foil gauge 8 produces mechanically deform（The resistance value of foil gauge 8 changes accordingly）, by variable
Pressure transmitter 9 is sent to by the minor variations of voltage or electric current, collection is sent to after entering the processing amplification of horizontal electrical signal
Received signal is changed into the signal that computer 6 can identify, can finally shown according in computer 6 by card 5, capture card 5
The information shown, judge that the creep of tubing collapses performance.
Embodiment 2
This example offer is a kind of to be used to detect the detection method that tubing creep collapses performance, and 150MM pipes are entered using the device of embodiment 1
Row detection, is comprised the following steps that：
1., the both ends of tubing to be detected and the both ends of pressure-bearing pipe are connected with the first adapter and the second adapter respectively, it is complete
Assembled into experimental rig；
2., pressue device connected with the pressurizing chamber of experimental rig, open force (forcing) pump and be constantly passed through pressurization to pressurizing chamber inside
Liquid, real-time pressure data can be obtained from the related software of computer, be depicted as curve, as shown in Figure 2；
3., from data shown in Fig. 2, experiment is divided into leak detection and the two parts that at the uniform velocity pressurize, and experiment is can be seen that from leak detection curve
System sealing is good, from pressuring curve it can be seen that test specimen collapses when pressure reaches 56MPa.
To sum up, it is of the invention to be used to detect the pilot system that tubing creep collapses performance, can be to various sizes of sample
Test, and the first adapter of the present invention, the second adapter and pressure-bearing pipe make simply, and cost is cheap, and tubing is compacted
Become and collapse foil gauge in performance detection unit and pressure transmitter and can use the relatively conventional product in market, therefore, this hair
Bright pilot system makes simply, and dependable performance, testing cost is low, easy to operate.One kind of the present invention is used for detection pipe
Material creep collapses the detection method of performance, the automation of its detection process, detection difficulty very little, and the creep of the tubing of detection is collapse resistance
Can accurate information.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all be included within the scope of the present invention.
Claims (10)
1. one kind is used to detect tubing（100）Creep collapses the pilot system of performance, it is characterised in that：The pilot system includes
Experimental rig, pressue device and the detection means being connected with the experimental rig, the experimental rig include the be oppositely arranged
One adapter（1）With the second adapter（2）, both ends respectively with first adapter（1）With the second adapter（2）Connection is held
Pressure pipe（3）, the tubing（100）It is detachably connected on first adapter（1）With the second adapter（2）Between, the pipe
Material（100）Outer wall, the pressure-bearing pipe（3）Inwall, first adapter（1）Inner and described second adapter
（2）The inner between surround closed pressurizing chamber（4）；The pressue device and the pressurizing chamber（4）Connection, for adding to described
Press chamber（4）Interior offer hydraulic pressure；The detection means includes being used to measure the tubing（100）The pressure sensor of outer wall pressure and
The signal acquisition process unit electrically connected with the pressure sensor.
2. according to claim 1 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：The pressure
Force snesor includes being attached at the tubing（100）The foil gauge of outer wall（8）And described foil gauge（8）The pressure of electrical connection
Transmitter（9）, the signal acquisition process unit includes capture card（5）With the computer of selectivity（6）.
3. according to claim 1 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：It is described to add
Pressure device is arranged on first adapter including insertion（1）Or second adapter（2）On pressurization passageway（40）And with institute
State pressurization passageway（40）The booster pump connected by pipeline（41）.
4. according to claim 1 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：Described
One adapter（1）With the second adapter（2）With the pressure-bearing pipe（3）The surface of junction and the pressure-bearing pipe（3）End face
Seal groove is equipped with, sealing ring is provided with the seal groove（31,31’）.
5. according to claim 4 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：It is described close
Seal（31,31’）For fluorine glue sealing ring.
6. according to claim 4 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：It is described close
Seal（31,31’）Temperature in use be 0 ~ 220 DEG C.
7. according to claim 2 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：The pressure
Power transmitter（9）Range be 0 ~ 250MPa.
8. according to claim 2 be used to detect the pilot system that tubing creep collapses performance, it is characterised in that：The pressure
Power transmitter（9）Measurement accuracy be ± 0.5MPa.
9. a kind of be used to detect the detection method that tubing creep collapses performance, it is characterised in that：The detection method includes using
The pilot system that performance is collapsed for detecting tubing creep any one of claim 1 ~ 8 collapses to carry out tubing creep
Test and carry out pressure test.
10. according to claim 9 be used to detect the detection method that tubing creep collapses performance, it is characterised in that：It is described
Detection method comprises the following steps：
1., by tubing to be detected（100）Both ends and pressure-bearing pipe（3）Both ends respectively with first adapter and second turn
Joint connects, and completes experimental rig assembling；
2., pressue device connected with the pressurizing chamber of experimental rig, open pressue device to constantly logical inside the pressurizing chamber
Enter fluid under pressure, while real-time pressure data is obtained by the detection means；
3., according to the real-time pressure data obtained judge that tubing creep collapses performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872042.8A CN107560946A (en) | 2017-09-25 | 2017-09-25 | It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872042.8A CN107560946A (en) | 2017-09-25 | 2017-09-25 | It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance |
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| Publication Number | Publication Date |
|---|---|
| CN107560946A true CN107560946A (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710872042.8A Pending CN107560946A (en) | 2017-09-25 | 2017-09-25 | It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827014A (en) * | 2019-02-28 | 2019-05-31 | 浙江大学 | Carbon fibre reinforced plastic electric melting pipe fittings with strain self-monitoring function |
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| CN203241303U (en) * | 2013-04-19 | 2013-10-16 | 苏州热工研究院有限公司 | Detecting device for detecting blasting performance of nuclear zirconium alloy pipe material |
| CN203908882U (en) * | 2014-06-25 | 2014-10-29 | 苏州热工研究院有限公司 | Special measurement device for creep property of nuclear zirconium alloy tubing |
| CN207133138U (en) * | 2017-09-25 | 2018-03-23 | 苏州热工研究院有限公司 | It is a kind of to be used to detect the pilot system that tubing creep collapses performance |
-
2017
- 2017-09-25 CN CN201710872042.8A patent/CN107560946A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609587A (en) * | 2004-08-10 | 2005-04-27 | 中国科学院寒区旱区环境与工程研究所 | Low-temperature high-pressure three-axle creep testing instrument |
| CN101122552A (en) * | 2007-09-18 | 2008-02-13 | 中国石油天然气集团公司 | Reservoir casing perforation anti-crushing simulation test method and simulation test machine |
| CN202075186U (en) * | 2011-05-13 | 2011-12-14 | 常州腾龙汽车零部件股份有限公司 | Test device for quick bursting of aluminum tube |
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| CN202256042U (en) * | 2011-09-24 | 2012-05-30 | 甘肃大禹节水集团股份有限公司 | Bearing strength detection fixture for unplasticised polyvinyl chloride (U-PVC) pipe fitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109827014A (en) * | 2019-02-28 | 2019-05-31 | 浙江大学 | Carbon fibre reinforced plastic electric melting pipe fittings with strain self-monitoring function |
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