CN206818585U - Simulate the sample of HTHP and flow media - Google Patents
Simulate the sample of HTHP and flow media Download PDFInfo
- Publication number
- CN206818585U CN206818585U CN201720501610.9U CN201720501610U CN206818585U CN 206818585 U CN206818585 U CN 206818585U CN 201720501610 U CN201720501610 U CN 201720501610U CN 206818585 U CN206818585 U CN 206818585U
- Authority
- CN
- China
- Prior art keywords
- sample
- connector
- sample body
- hanger bar
- stomata
- 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
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a kind of sample for simulating HTHP and flow media, wherein, the sample includes sample body and connector；The sample body is in hollow elongated tubular, includes sample body and is connected with connector, and inside all offers cavity or stomata, high-pressure medium can be accommodated, so as to simulate the working environment of high temperature, high pressure, flow media, test piece is also hung with cavity in described state, to calculate corrosion rate；Pass through the form airtight connection of welding between the sample body and connector, the two can be made up of different materials, the sample body can also be assembled by the annular component welding of polylith unlike material, so as to which the corrosion condition of welding point position can also be detected, in once testing, multigroup, multiple types test datas are obtained, greatly improve operating efficiency, reduce experimentation cost.
Description
Technical field
It the utility model is related to the simulated test sample and correlation method of measurement material property, and in particular to one kind carries
The method for hanging the sample of simulation high temp/high pressure/flow media operating mode of test piece and being tested using the sample.
Background technology
Heat exchanger tube is one of important component of heat exchanger, the security of heat exchanger tube be heat exchanger can all safe operations it is important
One of element, work operating mode are generally high temperature, high pressure, flow media (water, vapor etc.), heat pipe are exchanged in different equipment
Performance requirement be also different, and routine test and inspection can only detect the proper property of material under normal conditions, such as draw
Stretch intensity etc..But performance characterization of the heat exchanger tube under actual motion condition, being prepared by conventional examples to be carried out, especially
For the heat exchanger tube in the special installations such as HTGR, their working environment is more harsh, in harsh environments, in fact
Border performance can not be known by routine test；
Meaning is represented in order to ensure that research of the heat exchanger tube in the case where simulating working condition has, generally requires and ensures that sample is in
The working condition lower long period is simulated, if every kind of material all carries out one cycle, test period and cost are very high, if it is possible to
Multigroup test data is obtained by an experimental project, test efficiency can be obviously improved naturally, reduce cost；
In general experiment need purpose be material to be known be corroded under given conditions product, principle, corrosion thickness, corruption
Speed etc. is lost, also needs to product, thickness, speed that either of the same race or welding dissimilar materials rear joint part is corroded sometimes
Etc. information；
Wherein, ordinary test standard check material be oxidized/the most accurate method of corrosion rate is zero-g aircraft method, but
It is that oxidation/corrosion rate experiment in high temperature, high pressure, flow media is carried out to large dimension specimen, its result is often not accurate enough.
Due to the above problems, in order to obtain HTGR heat exchanger tube in high temperature, high pressure, the condition of flow media
Correlated performance tested, it is necessary to exchange heat pipe under the conditions of corresponding simulation, the welding exchanged between heat pipe and associated materials
Joint carries out performance evaluation, while also to take into account test efficiency, reduces experimentation cost, the applicant is to correlation test for this
Sample is analysed in depth, and a kind of new sample that can solve the problem that above mentioned problem, and corresponding simulated test side are designed in expectation
Method.
Utility model content
In order to overcome above mentioned problem, present inventor has performed studying with keen determination, a kind of sample and corresponding experiment side are designed
Method, wherein, the sample includes sample body and connector；The sample body is in hollow elongated tubular, includes sample body and company
Joint is connected, and inside all offers cavity or stomata, high-pressure medium can be accommodated, so as to simulate the work of high temperature, high pressure
Environment, test piece is also hung with cavity in described state, to calculate corrosion rate；Pass through between the sample body and connector
The form airtight connection of welding, the two can be made up of different materials, and the sample body can also be by polylith unlike material
Annular component welding it is assembled, so as to which the corrosion condition of welding position can also be detected, in once testing, obtain more
Group, the test data of multiple types, operating efficiency is greatly improved, experimentation cost is reduced, so as to complete the utility model.
Specifically, the purpose of this utility model is to provide a kind of sample, and the sample includes sample body 1 and connector
2；
The sample body 1 is in hollow elongated tubular, and its one end is connected with connector 2；
Stomata 21 is offered on the connector 2；
The stomata 21 communicates with the cavity 11 in sample body 1；
Test piece 3 is hung with the cavity 11.
Wherein, hanger bar 4 is installed on the connector 2, the other end of hanger bar 4 by nickel filament 5 with it is described
Test piece 3 is connected.
Wherein, the cavity 11 is cylindrical, and the size of its each cross section is consistent.
Wherein, the stomata on connector 2 close to sample body 1 is circular hole, and internal thread 22 is offered on the stomata inwall；
The cross sectional shape of the hanger bar 4 is in class rectangle, and external screw thread 41, outer spiral shell are offered in the upper end of the hanger bar 4
Line 41 matches with internal thread 22, and the lower end of hanger bar 4 is provided with hole 42.
Wherein, on the connector 2, the side outer cover away from sample body 1 is provided with seal washer, it is preferable that institute
Connector 2 is stated to be connected with circulating pump sealing by seal washer.
Wherein, the connector 2 has two, is separately positioned on the both sides of sample body 1.
Wherein, sample body 1 and connector 2 are tightly connected；
Preferably, the form airtight connection of welding is passed through between the sample body 1 and connector 2.
Wherein, the sample body 1 is welded assembled by polylith annular component；
Preferably, two kinds of materials are comprised at least in the polylith annular component.
The utility model also provides a kind of simulation examination for knowing material etching characteristic in the case where HTHP flows mixture condition
Proved recipe method, this method are being realized by the sample as described in claim 1-8.
Wherein, this method comprises the following steps：
Step 1：Assembled sample, it is included in suspension test piece 3 in cavity 11, welded seal connection sample body 1 and connector
2；
Step 2：Filled media in the sample, the medium include water；
Step 3：Sample both ends are connected with circulating pump respectively；
Step 4：Sample is placed in heater vertically, the wherein media inlet end of sample is under, media outlet end
Upper；
Step 5：It is heated to predetermined temperature, the pressure in adjusting sample reaches predetermined value, by circulating pump sample
Medium circulation flows, such as vapor, cooling down after predetermined hold-time, and extracts the medium in sample out, such as water vapour and water；
Step 6：Sample, observation, the corrosion condition of each position of detection sample inwall are broken in the axial direction, and weigh institute
State the weight of test piece 3.
According to sample provided by the utility model and its simulation experiment method is applied, material can be detected simultaneously in height
Corrosion characteristics in the case of temperature, high pressure and flow media collective effect, analysis corrosion principle, corrosion product, measure corrosion thickness,
Corrosion rate is calculated, and the above-mentioned corrosion characteristics at various material and various material Combination Welding can be measured simultaneously, is tested
For environment closer to complicated real operating environments, result of the test is more reliable, and test efficiency greatly improves, and can obtain simultaneously more
Kind data message, and reduce experimentation cost.
Brief description of the drawings
Fig. 1 shows the sample overall structure diagram according to a kind of preferred embodiment of the utility model；
Fig. 2 is shown according to connector structural representation in a kind of sample of preferred embodiment of the utility model；
Fig. 3 is shown according to hanger bar structural representation in a kind of sample of preferred embodiment of the utility model.
Drawing reference numeral explanation：
1- sample bodies
11- cavitys
2- connectors
21- stomatas
22- internal threads
3- test pieces
4- hanger bars
41- external screw threads
42- holes
5- nickel filaments
Embodiment
The utility model is further described below by drawings and examples.It is new by these explanations, this practicality
The characteristics of type and advantage will become more apparent from clearly.
Special word " exemplary " is meant " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the drawings
In terms of kind, but unless otherwise indicated, it is not necessary to accompanying drawing drawn to scale.
Working environment in HTGR residing for heat exchanger tube is very harsh, and the special shape of its own and size may also
The corrosiveness that it is subject to is had an impact, the heat exchanger tube can be made of a variety of materials in theory, but these species
Actual life and using effect of the material in actual working environment be difficult to know by theory deduction, and simulated test is that solve should
The preferred plan of problem, therefore, the utility model proposes a kind of HTGR performance of heat exchange tubes determination test sample, such as scheme
1st, shown in Fig. 2 and Fig. 3, the sample includes sample body 1 and connector 2；The sample body 1 is in hollow elongated tubular, its
One end is connected with connector 2；
Preferably, the connector 2 has two, is separately positioned on the both sides of sample body 1.
Stomata 21 is offered on the connector 2, the stomata 21 communicates with the cavity 11 in sample body 1；So as to
Medium in cavity is flowed, the cavity is closure mechanism, and its internal medium is easier to be maintained at predetermined pressure
In the range of power；
Preferably, test piece 3 is hung with the cavity 11, the test piece is the less bulk made of detected materials
Or flat member, the specific size of test piece 3 can require to determine that test piece is located in cavity, and it was being tested according to zero-g aircraft
The environmental factors such as the pressure, temperature and the media flow that are subject in journey are consistent with the environmental factor that Test section is subject to, simultaneously because
It can do smaller, and the corrosion of material in the present context can not be calculated by weight-loss method with sample body contacts
Speed.
In one preferred embodiment, the cavity 11 is cylindrical, and the size of its each cross section is consistent, so as to
Ensure that the pressure of the inside regional of sample body 1 is identical, the environment suffered by each position is influenceed more close to real work
Environment so that result of the test more approaching to reality value.
In one preferred embodiment, hanger bar 4 is installed on the connector 2, the hanger bar 4 is another
End is connected by nickel filament 5 with the test piece 3, and the hanger bar is connected with connector 2, so that nickel filament 5 and test piece 3 are all
It need not be in contact with sample body 1, so the measurement result of sample body 1 is not affected, using the teaching of the invention it is possible to provide more test samples；If
Put hanger bar 4 and make it that the length of nickel filament 5 will not be long, and hanger bar 4 can also make it that the position of test piece is more stable, test piece
Swing trend can be smaller.Preferably, the nickel filament 5 is a kind of high temperature that be able to will not be failed in HTHP flowing medium
Alloy, belongs to the optimal connecting rope of cost performance, and size is about 0.1~0.5mm of Φ.
In one preferred embodiment, as shown in Figures 2 and 3, close to the gas of sample body 1 on institute's connector 2
Hole is circular hole, and internal thread 22 is offered on the stomata inwall, and the cross sectional shape of the hanger bar 4 is in class rectangle, described outstanding
The upper end of peg 4 offers external screw thread 41, and the lower end of hanger bar 4 is provided with hole 42；
The internal thread 22 is engaged with external screw thread 41 so that hanger bar 4 is fixed on connection by way of screwed
On first 2 so that installation exercise is more convenient, wherein, though between the stomata that section is the hanger bar 4 of class rectangle and section is circle
So screwed up by screw thread, necessarily also retained space therebetween, can allow for the media flow in sample, ventilation will not be blocked
Hole；Also, fixed mode is screwed by spiral, enables to hanger bar 4 to be located at the center of sample, so that test piece
Positioned at the center of sample, it can further ensure that test piece and sample body by mutual interference, it is accurate not improve experiment
Property.The hole 42 of the lower end of hanger bar 4 make it that the connection between nickel filament 5 and hanger bar 4 is more convenient reliable.
In one preferred embodiment, on the connector 2, the side outer cover away from sample body 1 is provided with
Seal washer, it is preferable that the connector 2 is connected by seal washer with circulating pump sealing.The seal washer cause sample with
The connection of circulating pump is more convenient, close, it can be ensured that the air-tightness of whole testing equipment is intact, it is ensured that pressure is steady in sample
It is fixed, so as to further simulate real working environment.
In one preferred embodiment, sample body 1 and connector 2 are tightly connected；Avoid outside the medium in sample
Let out, ensure the pressure in sample within a predetermined range；
In one preferred embodiment, the sample body 1 is welded assembled by polylith annular component；It is preferred that
Ground, two kinds of materials are comprised at least in the polylith annular component, i.e., the weldering between same material can have both been included in sample body 1
Welding seam, the welded seam between foreign material can also be protected, so as to be greatly enriched the welding result number finally given
It is believed that breath.
Sample body described in the utility model is in elongated tubular, be not only easy to simultaneously by multiple material weld together into
Row experiment, due also to its long tube columnar structure to heat more convenient, the temperature of each position of elongated tubular can be ensured substantially all
It is maintained in predetermined temperature range so that experimental enviroment is more true to nature, and result of the test is more credible；
In the utility model, it is also proposed that a kind of mould for knowing material etching characteristic in the case where HTHP flows mixture condition
Intend test method, this method is realized by sample as described above.
Specifically, this method comprises the following steps：
Step 1：Assembled sample, it is included in suspension test piece 3, welded seal sample body 1 and connector 2 in cavity 11；Its
In, sample body is assembled by polylith annular component, when two neighboring annular component is same material, can detect of the same race
Etching characteristic after material welding, if two neighboring annular component is unlike material, after heterogeneous material welding can be detected
Etching characteristic.
Step 2：Filled media in the sample, the medium are aqueous solution, such as distilled water；
Step 3：Sample both ends are connected with circulating pump respectively；
Step 4：Sample is placed in heater vertically, the wherein media inlet end of sample is under, media outlet end
Upper；So that medium in sample constant flow from bottom to top；
Step 5：For heating sample to predetermined temperature, the water in sample is changed into vapor, the pressure of the vapor in adjusting sample
Power reaches predetermined value, and by mathematical models in circulating pump sample, the real working environment of simulation heat exchanger tube simultaneously continues pre-
Fix time, after the completion of, cooling down, and extract the steam in sample and water out；
Step 6：Sample, observation, the corrosion condition of each position of detection sample inwall are broken in the axial direction, and weigh institute
The weight of test piece 3 is stated, wherein, the material of sample inner surface is analyzed, can know sample material under experimental enviroment
Corrosion product, and then analyze its corrosion principle, the thickness by measuring corrosion layer know material by the depth of wall erosion, can be with
Compare the weight difference of test piece before and after the test by weighing, binding tests time series analysis calculates corrosion rate.
Test example：
Incoloy-800H tubing and SA-213T22 tubing are subjected to butt welding, examination as shown in Figures 1 and 2 is made
Sample, A level water is added in the sample, is vertically placed to after sample both ends and circulating pump are affixed in heating furnace, sample is heated to 520 ±
5 DEG C, the air pressure in adjusting sample, it is allowed to be in 14.5 ± 0.5MPa, passes through the WATER AS FLOW MEDIUM vapor stream in circulating pump Control Assay
It is dynamic, respectively persistently after 100h, 300h, 500h, 1000h, extract medium out, you can to carry out different multigroup of time conditions simultaneously,
The data message obtained by multigroup experiment carries out overall calculation assessment；Sample, observation, measuring and calculating experiment are broken after being reduced to room temperature
Parameters, connect weldering soldering tip inner surface oxide be in " river shape ", it may be observed that oxide particle, oxide layer is relatively thin, 1000h
Oxide thickness after experiment is about 10 μm, and Cr, Ti, Fe, Al and Ni element, oxide Al are mainly contained in oxide layer2O3
And FeCr2O4；Incoloy-800H mother metals and heat affected area surface are tiny oxide particle, and oxide layer is relatively thin, 1000h examinations
Oxide thickness after testing is about 9 μm, and Cr, Ti, Fe, Al and Ni element, oxide Al are mainly contained in oxide layer2O3With
FeCr2O4；SA-213T22 mother metals and surface are tiny oxide particle, thicker oxide-film are formd, after 1000h experiments
Oxide thickness is about 13 μm, and Cr, Fe and Si element are contained in oxide-film, and the oxide close to vapor interface is Fe3O4, it is close
The oxide of matrix is a small amount of CrFe2O4, the corrosion rate that SA-213 T22 are calculated is about 0.03g/m2·h。
The utility model is illustrated above in association with preferred embodiment, but these embodiments are only models
Example property, only play illustrative effect.On this basis, a variety of replacements and improvement can be carried out to the utility model, these
Each fall within the scope of protection of the utility model.
Claims (8)
- A kind of 1. sample for simulating HTHP and flow media, it is characterised in thatThe sample includes sample body (1) and connector (2)；The sample body (1) is in hollow elongated tubular, and its one end is connected with connector (2),Stomata (21) is offered on the connector (2),The stomata (21) communicates with the cavity (11) in sample body (1)；Test piece (3) is hung with the cavity (11).
- 2. sample according to claim 1, it is characterised in thatHanger bar (4) is installed on the connector (2), hanger bar (4) other end passes through nickel filament (5) and the examination Piece (3) is connected.
- 3. sample according to claim 1, it is characterised in thatThe cavity (11) is cylindrical, and the size of its each cross section is consistent.
- 4. sample according to claim 1, it is characterised in thatStomata on connector (2) close to sample body (1) is circular hole, and internal thread (22) is offered on the stomata inwall,The cross sectional shape of the hanger bar (4) is in class rectangle, offers external screw thread (41) in the upper end of the hanger bar (4), outside Screw thread (41) matches with internal thread (22), and the lower end of hanger bar (4) is provided with hole (42).
- 5. sample according to claim 1, it is characterised in thatOn the connector (2), opened outside the side away from sample body (1) and be arranged with seal washer.
- 6. sample according to claim 1, it is characterised in thatThe connector (2) has two, is separately positioned on the both sides of sample body (1).
- 7. sample according to claim 1, it is characterised in thatSample body (1) and connector (2) are tightly connected.
- 8. sample according to claim 1, it is characterised in thatThe sample body (1) is welded assembled by polylith annular component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501610.9U CN206818585U (en) | 2017-05-08 | 2017-05-08 | Simulate the sample of HTHP and flow media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501610.9U CN206818585U (en) | 2017-05-08 | 2017-05-08 | Simulate the sample of HTHP and flow media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206818585U true CN206818585U (en) | 2017-12-29 |
Family
ID=60755258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720501610.9U Active CN206818585U (en) | 2017-05-08 | 2017-05-08 | Simulate the sample of HTHP and flow media |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206818585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979920A (en) * | 2017-05-08 | 2017-07-25 | 哈电集团（秦皇岛）重型装备有限公司 | Simulate the sample of HTHP and flow media and apply its simulation experiment method |
-
2017
- 2017-05-08 CN CN201720501610.9U patent/CN206818585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979920A (en) * | 2017-05-08 | 2017-07-25 | 哈电集团（秦皇岛）重型装备有限公司 | Simulate the sample of HTHP and flow media and apply its simulation experiment method |
| CN106979920B (en) * | 2017-05-08 | 2023-08-25 | 哈电集团（秦皇岛）重型装备有限公司 | Sample for simulating high-temperature high-pressure flowing medium and simulation test method using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106501162B (en) | A kind of high temperature and pressure dynamic galvanic corrosion experimental method and device | |
| CN101975695B (en) | Safety evaluating method of pressure equipment containing crack defects | |
| CN105823703B (en) | It is a kind of to wash away under operating mode the device and method for evaluating inhibitor film integrality | |
| CN207366415U (en) | A kind of Flow Corrosion experimental provision | |
| CN107063990B (en) | Electrochemical test device for simulating crevice corrosion | |
| CN104533390B (en) | A kind of coiled tubing underground load test instrument | |
| CN106525709A (en) | Electrochemical corrosion test apparatus and application method thereof | |
| CN110118794A (en) | High temperature and pressure nuclear magnetic resonance core holding unit | |
| CN110299217A (en) | It is a kind of for studying the test section of annular fuel involucrum Explosive Failure | |
| CN106525710A (en) | Electrochemical testing device for acoustic-emission-testing-material corrosion performance and application method thereof | |
| CN107421878A (en) | A kind of corrosion experimental device and method of testing for simulating continuous duty operation | |
| CN206818585U (en) | Simulate the sample of HTHP and flow media | |
| CN105628510B (en) | A kind of metal welding test piece cryogenic mechanics performance optical test method | |
| CN107884334A (en) | A kind of galvanic corrosion test system and its method of testing | |
| CN111474110B (en) | Visual image monitoring flowing corrosion test device for bent pipe | |
| CN106979920A (en) | Simulate the sample of HTHP and flow media and apply its simulation experiment method | |
| CN205607831U (en) | Online inductance probe corrosion monitoring system | |
| CN104237112B (en) | A kind of experimental rig of test material resistant to sulfuric acid dew point corrosion | |
| CN206330874U (en) | A kind of electrochemical testing device of acoustic emission detection material corrosion performance | |
| Na et al. | Algorithm development for quality monitoring on end plug resistance weldment of nuclear fuel rods | |
| CN104458108B (en) | Method for measuring pressure drop of liquid metal pipe flow magnetic fluid under high-intensity magnetic field | |
| CN106525711A (en) | Clamp for acoustic emission testing of material corrosion property and using method thereof | |
| CN104236844B (en) | A kind of big flow gaseous fluid pilot system of nuclear power station MSR | |
| CN205786253U (en) | Three-port type metal pipe line outer wall corrosion detection device | |
| CN209486128U (en) | A kind of novel Pitot tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cao Cuanming Inventor after: Jiang Chong Inventor after: Sun Guohui Inventor after: Ma Yunhai Inventor after: Bao Shimei Inventor after: Ye Jinhui Inventor after: Ren Guosong Inventor after: Lun Zhiqiang Inventor after: Liang Yong Inventor after: Zhang Zhe Inventor before: Cao Cuanming Inventor before: Jiang Chong Inventor before: Sun Guohui Inventor before: Ma Yunhai Inventor before: Bao Shimei Inventor before: Ye Jinhui Inventor before: Ren Guosong Inventor before: Ren Zhiqiang Inventor before: Liang Yong Inventor before: Zhang Zhe |
|
| CB03 | Change of inventor or designer information |