CN106706509A - Special hanging tool for supercritical corrosion test - Google Patents

Special hanging tool for supercritical corrosion test Download PDF

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Publication number
CN106706509A
CN106706509A CN201710128932.8A CN201710128932A CN106706509A CN 106706509 A CN106706509 A CN 106706509A CN 201710128932 A CN201710128932 A CN 201710128932A CN 106706509 A CN106706509 A CN 106706509A
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CN
China
Prior art keywords
sample
base portion
corrosion
supercritical
specimen mounting
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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.)
Pending
Application number
CN201710128932.8A
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Chinese (zh)
Inventor
赵宇翔
张亮
熊茹
刘桂良
解怀英
王浩
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Nuclear Power Institute of China
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Nuclear Power Institute of China
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Priority to CN201710128932.8A priority Critical patent/CN106706509A/en
Publication of CN106706509A publication Critical patent/CN106706509A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

The invention discloses a special hanging tool for a supercritical corrosion test and the special hanging tool can be used for solving the problem that an existing corrosion test sample hanging tool will affect the effectiveness of a supercritical long-term test in conditions of high temperatures and high pressures. The special hanging tool disclosed by the invention comprises a base portion (2), a hanging hook (1) arranged in the middle above the base portion (2) and a bearing part arranged on the base portion (2). The special hanging tool is characterized in that an insulating part for avoiding galvanic corrosion between the bearing part and a test sample and between test samples is arranged on the bearing part. The special hanging tool disclosed by the invention has the advantage of avoiding galvanic corrosion between the bearing part and a test sample and between test samples so as to further ensure smooth development of the supercritical corrosion test with a high quality.

Description

A kind of supercritical corrosion tests Special hanger
Technical field
The present invention relates to supercritical corrosion experimental technique field, and in particular to a kind of supercritical corrosion tests Special hanger.
Background technology
Supercritical-Pressure Light Water Cooled Reactor (SCWR) is that " the 4th generation of technology such as nuclear energy system international symposium " (GIF) filter out six kinds most develop One of the 4th generation of technology such as nuclear energy system of prospect.Material development is the bottleneck for restricting SCWR development, is that the crucial of SCWR research and development supports skill Art, it is premise and the basis for carrying out SCWR research and development to develop HTHP supercritical water corrosion experimental rig.
According to Supercritical-Pressure Light Water Cooled Reactor material development demand, it is necessary to carry out the homogeneous corrosion experiment and stress corruption of multiple material Corrosion test, test sample quantity is more, and the corrosion test time is long;Original corrosion sample hanger accommodates limited amount, and in height Corrosion product influence water quality is also easy to produce under warm condition of high voltage, so as to influence the efficiency and validity of overcritical long term test.It is suitable Profit carries out the high temperature pressure corrosion experiment of various overcritical candidate materials, carries out the development tool of supercritical corrosion experiment Special hanger Have very necessary.
The content of the invention
The technical problems to be solved by the invention are:Existing corrosion sample hanger can influence super facing under high-temperature and high-pressure conditions The problem of the validity of boundary's long term test, it is therefore intended that test Special hanger there is provided a kind of supercritical corrosion, effectively improve super The validity of critical long term test.
The present invention is achieved through the following technical solutions:
A kind of supercritical corrosion tests Special hanger, including base portion, is arranged on the hook of base portion top middle part, sets Load bearing component on base portion,
It is provided with the load bearing component for avoiding between load bearing component and sample, galvanic couple being produced between sample and sample The isolation part of corrosion.
Hanger of the prior art, its hook is linked up with for being connected with autoclave kettle cover, in circle positioned at the top of disk Through hole is set on disk, is set at lead to the hole site and is placed cavity, then putting into the placement cavity sample carries out corrosion examination Test.Find in the prior art, exist between the sample and sample in placement cavity, and between sample and hanger by studying Contact point, the easy situation for galvanic corrosion occur occurs in causing to carry out supercritical corrosion process of the test, corrosion test water quality, Greatly affected the accurate and effective of experiment.
The present invention can effectively realize isolating between hanger and sample, sample and sample by increasing isolation part, lead to Isolation hanger and sample, sample and sample are crossed, and then is prevented effectively from hanger and sample, sample and sample under high-temperature and high-pressure conditions Between produce the principle of galvanic corrosion, and then avoid sample and hanger to discharging corrosion product in water, preferably ensure corrosion examination The water quality tested, improves the quality of corrosion test, improves the accurate and effective of experiment.
Further, the load bearing component includes the specimen mounting for mounting sample, and the specimen mounting is including cross bar, for connecting The connector of cross bar and base portion;The isolation part includes being arranged on cross bar and for isolation between load bearing component and sample Porcelain bushing, and it is socketed in the ceramic washer on porcelain bushing and for completely cutting off between sample and sample.
The present invention effectively can be easy between sample and sample, between sample and hanger by optimizing the set-up mode of sample Completely cut off the setting of part, and then convenient isolation, meanwhile, by the setting of the structure, also quite convenient for sample on specimen mounting Install and fix, effect is more significantly.
Further, in order to be able to carry out testing inspection to more samples simultaneously, test efficiency, the company are preferably improved Fitting is coupling type structure, and the specimen mounting is articulated on base portion;Another specimen mounting is also mounted with the cross bar of the specimen mounting.
The test method of prior art causes the finite capacity placed, and corrodes while can only being applied to a small amount of sample Experiment, causes test efficiency relatively low.The present invention is set by multiple through holes on disk with the multi-level coupling type structure of specimen mounting Meter, tests supercritical corrosion convenient and swift, effectively improves corrosion test efficiency;Also, by porcelain bushing and ceramic washer, It is prevented effectively from specimen mounting and produces galvanic corrosion with sample contacts, improves the validity of supercritical corrosion experiment.
That is, the change by way of above-mentioned mounting, only need to by increasing porcelain bushing and ceramic washer by it is effectively real Existing isolating between hanger and sample, sample and sample, by isolating hanger and sample, sample and sample, it is prevented effectively from height Galvanic corrosion is produced between hanger and sample, sample and sample under warm condition of high voltage, before corrosion test efficiency is effectively improved Put, improve the accurate and effective of experiment.
And, the change by way of above-mentioned mounting makes the loading or unloading operation of sample more facilitate, and need not be torn open when picking and placeing Dress, effect is very notable.Thus, by the optimization of structure of the present invention, effectively and significantly overcritical long-term examination can be improved simultaneously The efficiency and validity tested, effect are very notable.
Further, through hole is provided with the base portion, crossbeam is provided with through hole, the specimen mounting is articulated on crossbeam.This Invention optimizes the mounting means of specimen mounting, by setting crossbeam in through hole, is increased by mounting specimen mounting on crossbeam The quantity of accommodated sample, and then further improve test efficiency.Wherein, hook, disk, crossbeam, specimen mounting use corrosion resistant Corrosion material manufacture, for example with stainless steel or with sample material identical material manufacture.
Further, the through hole is circle, and the axis of the crossbeam overlaps with the diameter of through hole.Set on disk There are multiple circular holes, crossbeam is located in circular hole, for the suspension of specimen mounting;The quantity of the circular hole is six, in circular uniform It is arranged on base portion, can different size of multiple specimen mountings of suspension as needed on the crossbeam in six circular holes.
Further, the sample is bend specimen or/and block sample, and the bend specimen and block sample are mounted On porcelain bushing.
Preferably, the base portion is discoid.
The present invention compared with prior art, has the following advantages and advantages:
1st, can also continue to hang another specimen mounting below specimen mounting of the present invention, so can successively mount multilayer sample Frame, the quantity of kettle test sample is entered so as to the single that is multiplied, and then improve test efficiency;
2nd, when the present invention is applied to corrosion test, because sample is hung on specimen mounting, and by porcelain bushing and pottery Porcelain packing ring avoids the galvanic corrosion that dissimilar metal contact each other causes, thus can be while test efficiency is improved, more Ensure the quality of corrosion test well, improve the accurate and effective of corrosion test;
3rd, simple structure of the present invention, is connected using coupling type, easy to operate without dismounting when picking and placeing, and is further improved The efficiency of corrosion test.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation at specimen mounting position in the present invention.
Mark and corresponding parts title in accompanying drawing:
1- hooks, 2- base portions, 3- through holes, 4- crossbeams, 5- specimen mountings, 6- bend specimens, 7- bulk sample, 8- ceramic jackets Pipe, 9- ceramic washers;
51- cross bars, 52- pegs.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make It is limitation of the invention.
Embodiment 1
A kind of supercritical corrosion tests Special hanger, including hook 1, base portion 2, load bearing component and isolation part, should be every Exhausted part is used for isolation between load bearing component and sample, between sample and sample and comes, and then will avoid load bearing component and sample Between, galvanic corrosion is produced between sample and sample.
The load bearing component can be the structure after existing structure, or optimization in the present invention, disclosed in the present embodiment A kind of structure after optimization, as depicted in figs. 1 and 2.
The load bearing component includes the specimen mounting 5 for mounting sample, and the specimen mounting 5 is including cross bar 51, for connecting horizontal stroke The connector 52 of bar 51 and base portion 2.In the present embodiment, the connector 52 can be stationarily connected to the connecting rod knot on base portion 2 Structure, or mounting coupling type structure on the base part 2, preferably use coupling type structure in the present embodiment.When connector 52 It is specific to set as follows during using coupling type structure:
Base portion is provided with through hole 3 for discoid on base portion 2, being shaped as of through hole is provided with crossbeam 4 in circle, through hole 3, The specimen mounting 5 is articulated on crossbeam 4, and another specimen mounting 5 is also mounted with the cross bar 51 of specimen mounting 5.The isolation part includes setting The porcelain bushing 8 on cross bar 51 and for completely cutting off between load bearing component and sample is put, and is socketed on porcelain bushing 8 and is used The ceramic washer 9 completely cut off between sample and sample.
Wherein, hook 1 is arranged on the middle part of the top of base portion 2, for being connected with autoclave kettle cover.Through hole 3 is six It is individual, it is uniformly distributed on the base part 2, and rounded structure is arranged between through hole 3.A crossbeam 4 is provided with each through hole 3, Crossbeam 4 is used for the suspension of specimen mounting 5.Can the different size of multiple of suspension as needed on crossbeam in above-mentioned six circular holes Specimen mounting.In the present embodiment, the crossbeam 4 is preferably and is fixed on the middle position of through hole 3, i.e., the axis of described crossbeam 4 with The diameter of through hole 3 overlaps, as shown in Figure 1.
In the present embodiment, specimen mounting is the U-shaped design with hook, and sample is hung on specimen mounting during corrosion test, and The galvanic corrosion that dissimilar metal contact each other causes is avoided by porcelain bushing and ceramic washer, test efficiency is being improved While, can preferably ensure the water quality of corrosion test, improve the quality of corrosion test.Wherein, hook 1, base portion 2, crossbeam 4, And the cross bar 51 and peg 52 in specimen mounting are manufactured using resistant material, for example with stainless steel or and sample material Identical material manufacture.
Meanwhile, in order to increase the quantity of detection simultaneously, detection efficiency is further improved, can also continue to hang below specimen mounting Another specimen mounting is hung, multilayer specimen mounting so can be successively mounted, the quantity of kettle test sample is entered so as to the single that is multiplied. That is, another specimen mounting 5 is also mounted with the cross bar 51 of described specimen mounting 5, as shown in Figure 1.
A kind of supercritical corrosion experiment Special hanger in the present invention, it can be used for supercritical corrosion experiment, maximum temperature 650 DEG C, maximum pressure 25MPa.
Embodiment 2
The present embodiment is further to be optimized between sample and specimen mounting 5 in the present embodiment with the difference of embodiment 1 Connected mode, as shown in figure 1, in the present embodiment, the sample of the corrosion test, such as bend specimen or block sample, it both can be with Directly hung by punching, it is also possible to hung by hook, preferably by the mode of hook mounting in the present embodiment.This In embodiment, all of connection is connected using coupling type, easy to operate without dismounting when picking and placeing, and improves corrosion test Efficiency.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include Within protection scope of the present invention.

Claims (8)

1. a kind of supercritical corrosion experiment Special hanger, including base portion (2), is arranged on the hook of base portion (2) top middle part (1), it is arranged on the load bearing component on base portion (2), it is characterised in that
It is provided with the load bearing component for avoiding between load bearing component and sample, galvanic corrosion being produced between sample and sample Isolation part.
2. a kind of supercritical corrosion according to claim 1 tests Special hanger, it is characterised in that the load bearing component bag The specimen mounting (5) for mounting sample is included, the specimen mounting (5) is including cross bar (51), for connecting cross bar (51) with base portion (2) Connector (52);The isolation part includes being arranged on the ceramics on cross bar (51) and for completely cutting off between load bearing component and sample Sleeve pipe (8), and it is socketed in the ceramic washer (9) on porcelain bushing (8) and for completely cutting off between sample and sample.
3. a kind of supercritical corrosion according to claim 2 tests Special hanger, it is characterised in that the connector (52) It is coupling type structure, the specimen mounting (5) is articulated on base portion (2);Also it is mounted with the cross bar (51) of the specimen mounting (5) another Specimen mounting (5).
4. a kind of supercritical corrosion according to claim 3 tests Special hanger, it is characterised in that on the base portion (2) It is provided with through hole (3), through hole (3) and is provided with crossbeam (4), the specimen mounting (5) is articulated on crossbeam (4).
5. a kind of supercritical corrosion experiment Special hanger according to claim 4, it is characterised in that the through hole (3) is Circle, axis and the diameter of through hole (3) of the crossbeam (4) overlap.
6. a kind of supercritical corrosion according to claim 4 or 5 tests Special hanger, it is characterised in that the through hole (3) Quantity be six, be evenly arranged on base portion (2) in annular shape.
7. a kind of supercritical corrosion experiment Special hanger according to claim 1 and 2, it is characterised in that the sample is Bend specimen (6) or/and block sample (7), the bend specimen (6) and block sample (7) are articulated on porcelain bushing (8).
8. a kind of supercritical corrosion experiment Special hanger according to claim 1, it is characterised in that the base portion (2) is It is discoid.
CN201710128932.8A 2017-03-06 2017-03-06 Special hanging tool for supercritical corrosion test Pending CN106706509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710128932.8A CN106706509A (en) 2017-03-06 2017-03-06 Special hanging tool for supercritical corrosion test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710128932.8A CN106706509A (en) 2017-03-06 2017-03-06 Special hanging tool for supercritical corrosion test

Publications (1)

Publication Number Publication Date
CN106706509A true CN106706509A (en) 2017-05-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710128932.8A Pending CN106706509A (en) 2017-03-06 2017-03-06 Special hanging tool for supercritical corrosion test

Country Status (1)

Country Link
CN (1) CN106706509A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155726A (en) * 1984-12-27 1986-07-15 Suga Shikenki Kk Immersion cycle tester
CN101308082A (en) * 2008-07-08 2008-11-19 浙江大学 Experimental device for static state high-temperature naphthenic acid erosion
CN202075203U (en) * 2011-03-30 2011-12-14 陕西科技大学 Experimental device for corrosion of black liquor in oxidation of supercritical water
CN202903653U (en) * 2012-11-23 2013-04-24 辽宁石油化工大学 Simple experimental device for determining weather resistance of paint
CN203074442U (en) * 2013-03-14 2013-07-24 唐景华 Spoon hanging frame
CN103364332A (en) * 2013-07-12 2013-10-23 中国核动力研究设计院 Special sample rack for corrosion test outside nuclear material stack
CN203502326U (en) * 2013-10-21 2014-03-26 华中科技大学 Hanging piece rack for autoclave corrosion test
CN104631066A (en) * 2013-11-08 2015-05-20 大连民族学院 Clothes airing rod
CN104720510A (en) * 2013-12-20 2015-06-24 李在林 Retractable double-end clothes hanger
CN105310430A (en) * 2014-06-12 2016-02-10 李在明 Hook and single-rod type clothes hanger

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155726A (en) * 1984-12-27 1986-07-15 Suga Shikenki Kk Immersion cycle tester
CN101308082A (en) * 2008-07-08 2008-11-19 浙江大学 Experimental device for static state high-temperature naphthenic acid erosion
CN202075203U (en) * 2011-03-30 2011-12-14 陕西科技大学 Experimental device for corrosion of black liquor in oxidation of supercritical water
CN202903653U (en) * 2012-11-23 2013-04-24 辽宁石油化工大学 Simple experimental device for determining weather resistance of paint
CN203074442U (en) * 2013-03-14 2013-07-24 唐景华 Spoon hanging frame
CN103364332A (en) * 2013-07-12 2013-10-23 中国核动力研究设计院 Special sample rack for corrosion test outside nuclear material stack
CN203502326U (en) * 2013-10-21 2014-03-26 华中科技大学 Hanging piece rack for autoclave corrosion test
CN104631066A (en) * 2013-11-08 2015-05-20 大连民族学院 Clothes airing rod
CN104720510A (en) * 2013-12-20 2015-06-24 李在林 Retractable double-end clothes hanger
CN105310430A (en) * 2014-06-12 2016-02-10 李在明 Hook and single-rod type clothes hanger

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Application publication date: 20170524

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