CN110057746A - A kind of online high temperature and pressure radiation corrosion simulation system and analogy method - Google Patents
A kind of online high temperature and pressure radiation corrosion simulation system and analogy method Download PDFInfo
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- CN110057746A CN110057746A CN201910350107.1A CN201910350107A CN110057746A CN 110057746 A CN110057746 A CN 110057746A CN 201910350107 A CN201910350107 A CN 201910350107A CN 110057746 A CN110057746 A CN 110057746A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
Abstract
The invention discloses a kind of online high temperature and pressure radiation corrosion simulation system and analogy methods, the online high temperature and pressure radiation corrosion simulation system, including being sequentially connected with water tank two, high-pressure pump, preheater, autoclave, condenser and collecting tank annular in shape by pipeline, the side of the water tank two is provided with radioactive source, is provided with hitch point in the autoclave.In the present invention, the water in water tank two can be irradiated by the way that radioactive source is arranged in the outside of water tank two, then pass through the setting of high-pressure pump and preheater, the water for entering autoclave can be heated and be pressurizeed, the high temperature and pressure radiation corrosion environment faced so as to model configuration material.In addition, according to the needs of actual conditions, radioactive source can also be removed, the device, that is, analog associated materials only corrosion condition in the case of by high temperature and pressure at this time.A plurality of types of radioactive sources can also be arranged to irradiate water, and then simulate the multifactor collaboration corrosion under a variety of emission types.
Description
Technical field
The present invention relates to radiation corrosion analogue technique field, specifically a kind of online high temperature and pressure radiation corrosion simulation
System and analogy method.
Background technique
Increase with people to energy demand, nuclear energy is as a kind of cleaning, the efficient energy increasingly by more people
Concern.However nuclear power station in the process of running its inner fuel involucrum, fuel assembly and pipeline except high-temperature high pressure water need to be endured
Corrosion is outer, joint effect also multifactor by neutron irradiation and ray radiation etc..Multifactor presence leads to material corrosion row
For complicate, therefore obtain in advance it is multifactor under the conditions of material corrosion behavior it is most important for the safety of nuclear power station.
Currently, it due to being limited by technical requirements, neutron irradiation experiment and radiation source etc., is only capable of not penetrating by simulation
The corrosion behavior of material prejudges service life of the material in nuclear power station under the conditions of beta radiation and neutron irradiation.However, this
A little experimental results are only capable of part and represent material in the corrosion behavior of actual condition, cause to sentence the used in nuclear power station materials'use service life
It is disconnected error occur, it is serious, the safety of nuclear power station can be threatened.Therefore, the corruption under laboratory simulation nuclear power station actual condition
Erosion condition, which seems, to be even more important, and provides reference frame for the correlated performance of assessment material, while being the variation of prediction material property
Data analysis is provided.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the invention proposes a kind of online high temperature and pressure radiation corrosion simulation system and
Analogy method is dedicated to solving one of the technical problem in aforementioned background art.
The present invention solves its technical problem using following technical scheme to realize:
As the first aspect of the invention, a kind of online high temperature and pressure radiation corrosion simulation system is provided, including
Water tank two；
Radioactive source is set to the side of the water tank two；
High-pressure pump, the entrance of the high-pressure pump are connected to the outlet of the water tank two；
Preheater, the entrance of the preheater are connected to the outlet of the high-pressure pump；
Autoclave, the entrance of the autoclave are connected to the outlet of the preheater, suspension are provided in the autoclave
Point；
Condenser, the entrance of the condenser are connect with the outlet of the autoclave；
Collecting tank, the entrance of the collecting tank are connect with the outlet of the condenser, and outlet is connected to the water tank two
Entrance.
As a kind of optional embodiment of the invention, further include
Water tank one, the outlet of the water tank one are connected to the entrance of the water tank two, and the water tank one enters
Mouth is connected to the outlet of the collecting tank；
Oxygen pipeline, the outlet of the oxygen pipeline are located at the inside of the water tank one；
Hydrogen pipeline, the outlet of the hydrogen pipeline are located at the inside of the water tank one；
Nitrogen pipeline, the outlet of the nitrogen pipeline are located at the inside of the water tank one.
As a kind of optional embodiment of the invention, the oxygen pipeline, hydrogen pipeline and nitrogen pipeline are located at storage
End inside water pot one is also connected with micron order gas distributor.
As a kind of optional embodiment of the invention, further include
Circulating pump, the entrance of the circulating pump and outlet are respectively connected to the outlet of water tank two and the entrance of high-pressure pump；
Water chemistry monitor branch, the entrance and exit of the water chemistry monitor branch are respectively connected to going out for the circulating pump
The entrance of mouth and the water tank one.
As a kind of optional embodiment of the invention, the water chemistry monitor branch includes oxygen analyser, PH controller
And corrosion potential measuring instrument, the oxygen analyser, PH controller and corrosion potential measuring instrument sequentially concatenate, the corrosion potential measurement
The entrance of instrument is connected to the outlet of the circulating pump, and the outlet of the oxygen analyser is connected to the entrance of water tank one.
As a kind of optional embodiment of the invention, further include
Pulse damper, the pulse damper are set between the high-pressure pump and the preheater；
Normal atmosphere filter, the normal atmosphere filter are set between the circulating pump and the high-pressure pump；
Ion exchange resin, the ion exchange resin are set between the water tank one and the collecting tank.
It further include two ray cummulative metering detectors and an acquisition as a kind of optional embodiment of the invention
Terminal, it is close or far from the radioactive source that two ray cummulative metering detectors are respectively arranged at the water tank two
Side, two ray cummulative metering detectors are electrically connected with acquisition terminal respectively.
As the second aspect of the invention, a kind of online high temperature and pressure radiation corrosion analogy method is provided, including
Sample to be tested is placed in autoclave, and is passed through recirculated water into autoclave；
It is irradiated first using radioactive source into the recirculated water in autoclave, is then pressurizeed and heated, then be passed through
In autoclave；
Cooling and reduced pressure treatment are carried out to the recirculated water for leaving autoclave.
As the second aspect of the invention, a kind of online high temperature pressure corrosion analogy method is provided, including will be to be measured
The sample of examination is placed in autoclave, and recirculated water is passed through into autoclave；
Nitrogen and/or hydrogen are passed first into the recirculated water in autoclave, and to oxygen content, PH and the corruption in recirculated water
Erosion current potential is detected, and is then pressurizeed and is heated, then is passed through in autoclave；
Cooling and reduced pressure treatment are carried out to the recirculated water for leaving autoclave.
The beneficial effects of the present invention are:
In the present invention, the water in water tank two can be irradiated by the way that radioactive source is arranged in the outside of water tank two,
Then pass through the setting of high-pressure pump and preheater, the water for entering autoclave can be heated and be pressurizeed, and then make to enter height
Water in pressure kettle has by the characteristic of radiation, high temperature and high pressure, rotten so as to simulate the high temperature and pressure radiation that sample is faced
Environment is lost, and then the performance of sample can be tested, in order to accurately understand associated materials in the practical work such as nuclear power station
Corrosion condition in condition.In addition, according to the needs of actual conditions, radioactive source can also be removed, the device, that is, analog at this time
The sample only corrosion condition in the case of by high temperature and pressure.Alternatively, it is also possible to according to the needs of actual conditions, be arranged a plurality of types of
Radioactive source irradiates water, and then simulates the multifactor collaboration corrosion under a variety of emission types.The present invention can simulate correlation
Multifactor collaboration corrosion behavior under a variety of environment of material is conducive to understand characteristic of the sample under complex environment.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the main view of present embodiment.
Wherein, 1- oxygen pipeline, 2- hydrogen pipeline, 3- nitrogen pipeline, 4- water tank one, 5- gas distributor, 6- water filling
Valve, 7- exhaust valve I, 8- counterbalance valve I, 9- check valve I, 10- conventional pumps, 11- exhaust valve II, 12- check valve II, 13- water tank
Two, 14- ray cummulative metering detector, 15- radioactive source, 16- drain valve I, 17- check valve III, 18- circulating pump, 19- normal pressure mistake
Filter, 20- check valve IV, 21- high-pressure pump, 22- check valve V, 23- pulse damper, 24- preheater, 25- check valve VI,
26- autoclave, 27- counterbalance valve II, 28- exhaust valve III, 29- exhaust valve IV, 30- check valve VII, 31- condenser, 32- exhaust valve
V, 33- counterbalance valve III, 34- check valve VIII, 35- collecting tank, 36- exhaust valve VI, 37- drain valve II, 38- check valve Ⅸ, 39-
Ion exchange resin, 40- check valve Ⅹ, 41- oxygen analyser, 42-PH controller, 43- corrosion potential measuring instrument, 44- check valve Ⅺ.
Specific embodiment
Below by the description to embodiment, the shape of for example related each component of a specific embodiment of the invention, structure
It makes, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have inventive concept of the invention, technical solution
Whole, accurate and deep understanding.
As the first aspect of the invention, a kind of online high temperature and pressure radiation corrosion simulation system is provided, including
Water tank two；
Radioactive source is set to the side of the water tank two；
High-pressure pump, the entrance of the high-pressure pump are connected to the outlet of the water tank two；
Preheater, the entrance of the preheater are connected to the outlet of the high-pressure pump；
Autoclave, the entrance of the autoclave are connected to the outlet of the preheater, suspension are provided in the autoclave
Point；
Condenser, the entrance of the condenser are connect with the outlet of the autoclave；
Collecting tank, the entrance of the collecting tank are connect with the outlet of the condenser, and outlet is connected to the water tank two
Entrance.
In the present invention, the water in water tank two can be irradiated by the way that radioactive source is arranged in the outside of water tank two,
Then pass through the setting of high-pressure pump and preheater, the water for entering autoclave can be heated and be pressurizeed, and then make to enter height
Water in pressure kettle has the characteristic of radiation, high temperature and high pressure, material to be tested is placed in the autoclave, to make this
Simulation system can the high temperature and pressure that is faced of online simulation sample and radiation corrosion environment, and then can be to the corrosion-resistant of sample
Property is tested, in order to accurately understand corrosion condition of the sample in nuclear power station actual condition.In addition, according to the actual situation
Needs, radioactive source can also be removed, at this time the device, that is, analog sample only by high temperature and pressure aqueous corrosion the case where.Separately
Outside, according to the needs of actual conditions a plurality of types of radioactive sources can also be set, water is irradiated, and then simulate a variety of radiation
Multifactor collaboration corrosion under type.The present invention can simulate the multifactor collaboration corrosion behavior under a variety of environment of sample, favorably
In characteristic of the understanding sample under complex environment.
As a kind of specific embodiment of the invention, as shown in Figure 1, it is rotten to provide a kind of online high temperature and pressure radiation
Simulation system, including water tank 1 are lost, material is stainless steel, and water tank 1 is used for water storage, to guarantee filling for circulatory system water
Foot.It further include oxygen pipeline 1, hydrogen pipeline 2, nitrogen pipeline 3, the oxygen pipeline 1, hydrogen pipeline 2, nitrogen pipeline 3 go out
Mouth is respectively positioned on the inside of the water tank 1, is respectively used to be passed through oxygen, hydrogen and nitrogen in the water into water tank 1, institute
It states oxygen pipeline 1, hydrogen pipeline 2, be provided with solenoid valve I in nitrogen pipeline 3.Nitrogen, hydrogen are passed through by the control of solenoid valve I
Gas, controls the oxygen content in aqueous solution, and hydrogen content reaches the minimum of nuclear power plant system.In order to make to be passed through water tank 1
Interior gas can come into full contact with water, and one threeway is respectively housed in each air inlet pipe water intake end, connects two in each threeway
Micron order gas distributor 5 makes gas more rapidly, more effectively be dissolved in the water.
Need to be illustrated, solenoid valve I only without using radioactive source in the case where open, when using radioactive source into
When row radiation corrosion is tested, solenoid valve I is in close state.
Water tank 1 connects water injection valve 6 by pipeline, the water inlet as water tank 1.Pass through pipe on water tank 1
Road is connected to exhaust valve I 7, and the setting of exhaust valve I 7 can according to need the pressure manually adjusted in water tank 1.Water tank one
Counterbalance valve I 8 is also connected by pipeline on 4, by setting the minimal pressure force value of counterbalance valve I 8, makes water tank 1 and outdoor pressure
Power is consistent.
One 4 bottom of water tank is then attached to water tank 2 13 by piping connection conventional pumps 10, water tank 1 and often
The pipeline of 10 connection of rule pump is equipped with check valve I 9, and the water that water tank 1 comes out provides hydrodynamic force by conventional pumps 10, into storage
Water pot 2 13, the pipeline that conventional pumps 10 are connect with water tank 2 13 are equipped with check valve II 12, and check valve II 12 can be in pipeline
When failure, prevent aqueous reflux from damaging conventional pumps 10, conventional pumps 10 can make aqueous solution flow.
Exhaust valve II 11 is connected by pipeline on water tank 2 13, is connected and is sluiced by pipeline in 2 13 bottom of water tank
Valve I 16, water tank 2 13 can according to need switch drain valve I 16 and discharge water.Radioactive source 15 is set to water tank 2 13
Outside.It further include two ray cummulative metering detectors 14 and an acquisition terminal, two ray cummulative metering detectors
14 are respectively arranged at the side of the close or separate radioactive source 15 of the water tank 2 13, two ray cummulative meterings
Detector 14 is electrically connected with acquisition terminal respectively.When carrying out radiation corrosion experiment, with radioactive source 15 in water tank 2 13
Recirculated water is irradiated, and the ray cummulative metering detector 14 of 2 13 two sides of water tank records radiation agent respectively, and transmit as
The acquisition terminal that ray cummulative metering detector 14 is electrically connected, acquisition terminal collect two ray cummulative metering detectors 14
Data be weighted and averaged, dose of radiation suffered by the water for flowing through water tank 2 13 can be estimated.
The material of water tank 2 13 is stainless steel.2 13 bottom of water tank passes through piping connection circulating pump 18, water tank two
13 pipelines connecting with circulating pump 18 are equipped with check valve III 17.The water that water tank 2 13 comes out provides circulation by circulating pump 18
Hydrodynamic force respectively enters water chemistry monitor branch and autoclave branch.
The water chemistry monitor branch includes oxygen analyser 41, PH controller 42 and corrosion potential measuring instrument 43.In circulating pump
Pipeline between 18 and corrosion potential measuring instrument 43 is equipped with check valve Ⅺ 44, provides circulating water power by circulating pump 18 and enters water
The water in chemical measurement systems circuit finally imports water tank 1, and oxygen analyser 41 and the connecting line of water tank 1 are equipped with unidirectionally
Valve Ⅹ 40.Water chemistry monitor branch can be with on-line checking dissolved oxygen in water, pH value and electrochemical parameter, preferably to simulate
Actual condition.Water chemistry monitor branch all can be used in the circulation loop for radiating and not radiating.
The autoclave branch is successively arranged normal atmosphere filter 19 and check valve IV 20, then connects high-pressure pump 21, then
It is connected to preheater 24, finally connects autoclave 26.High-pressure pump 21 both provides hydrodynamic force, also provides pressure for autoclave 26.
The water that water tank 2 13 enters in autoclave branch pressurizes by high-pressure pump 21, the water after pressurization by check valve V 22 into
Enter preheater 24 to be heated, enter in autoclave 26 after allowing the temperature of water first to reach some predetermined value, after heating pressurization
Water entered in autoclave 26 after check valve VI 25 by water inlet pipe, be cased with heating device outside autoclave 26, can heat
And heat preservation.Be inserted on pipeline between high-pressure pump 21 and preheater 24 one section of piping connection pulse damper 23, pass through arteries and veins
Rush the steady of the setting coutroi velocity of damper 23.A counterbalance valve II 27 and two exhaust valves III are additionally provided on autoclave 20
28, IV 29, counterbalance valve II 27 is mainly the pressure controlled in entire autoclave 26, and not allowing it is more than the pressing force threshold of autoclave 26
Value.The major function of exhaust valve is pressure release, prevents autoclave 26 from exploding.
High-temperature water in the autoclave 26 connects condenser 31 by check valve VII 30 by outlet conduit, then connects
To collecting tank 35 and ion exchange resin 39, the high-temperature water flowed out in autoclave 26 is cooled to room temperature by condenser 31.?
Exhaust valve V 32 is connected on condenser 31, condenser 31 and the pipeline of collecting tank 35 are equipped with counterbalance valve III 33 and check valve VIII
34, collecting tank 35 is equipped with exhaust valve VI 36, and bottom is equipped with drain valve II 37.Collecting tank 35 is released stress by counterbalance valve III 33
It is equipped on the pipeline that collecting tank 35 and ion exchange resin 39 connect unidirectional to normal pressure later by ion exchange resin 39
Valve Ⅸ 38 accesses water tank 1 after removing foreign ion by ion exchange resin 39, completes circulation.Condenser 31 passes through cold
It is solidifying to have the function that reflux, it is stored in after condensation in collecting tank 35.Then foreign ion is filtered by ion exchange resin 39
Fall, the degree of purity that main purpose is to maintain water enters in cyclic water tank, achievees the purpose that recycle again.
It should be noted that the material of water tank can be stainless steel and nickel-base alloy etc., the material of sample can select reality
Material that border uses, such as zirconium, stainless steel, nickel-base alloy and ceramic material etc., the water in water tank can be pure water or contains
There is the aqueous solution of default ingredient.Radiation source can be alpha ray, β ray, gamma-rays, in X-ray any one or it is a variety of
Combination.
In order to reduce the injury of Radiation On Human body, a biggish lead shell can be prepared, above-mentioned component is coated on
In lead shell, or one lesser lead shell of preparation, radioactive source and water tank two are coated in lead shell.
As the second aspect of the invention, a kind of online high temperature and pressure radiation corrosion analogy method is provided, including
Associated materials to be tested are placed in autoclave, and are passed through recirculated water into autoclave；
It is irradiated first using radioactive source into the recirculated water in autoclave, is then pressurizeed and heated, then be passed through
In autoclave；
Cooling and reduced pressure treatment are carried out to the recirculated water for leaving autoclave.
In the present invention, water is irradiated by radioactive source, then by being pressurizeed and being heated to water, to make to enter
Water in autoclave has radiation, high temperature and high pressure characteristics, can be real to the sample mold nucleoid reactor being placed in autoclave
Radiation and corrosion test under the operating condition of border.
As the third aspect of the invention, a kind of online high temperature pressure corrosion analogy method is provided, including will be to be measured
The sample of examination is placed in autoclave, and recirculated water is passed through into autoclave；
Nitrogen and/or hydrogen are passed first into the recirculated water in autoclave, and to oxygen content, PH and the corruption in recirculated water
Erosion current potential is detected, and is then pressurizeed and is heated, then is passed through in autoclave；
Cooling and reduced pressure treatment are carried out to the recirculated water for leaving autoclave.
In the present invention, by being pressurizeed and being heated to water, and Xiang Shuizhong is passed through nitrogen and hydrogen to control oxygen content, from
And the water entered in autoclave is made to have high temperature and high pressure characteristics, it is anti-practical core can be simulated to the sample being placed in autoclave
Answer the corrosion test in heap.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (9)
1. a kind of online high temperature and pressure radiation corrosion simulation system, it is characterised in that: including
Water tank two；
Radioactive source is set to the side of the water tank two；
High-pressure pump, the entrance of the high-pressure pump are connected to the outlet of the water tank two；
Preheater, the entrance of the preheater are connected to the outlet of the high-pressure pump；
Autoclave, the entrance of the autoclave are connected to the outlet of the preheater, are provided with hitch point in the autoclave；
Condenser, the entrance of the condenser are connect with the outlet of the autoclave；
Collecting tank, the entrance of the collecting tank are connect with the outlet of the condenser, and outlet is connected to entering for the water tank two
Mouthful.
2. online high temperature and pressure radiation corrosion simulation system according to claim 1, it is characterised in that: further include
Water tank one, the outlet of the water tank one are connected to the entrance of the water tank two, and the entrance of the water tank one connects
It is connected to the outlet of the collecting tank；
Oxygen pipeline, the outlet of the oxygen pipeline are located at the inside of the water tank one；
Hydrogen pipeline, the outlet of the hydrogen pipeline are located at the inside of the water tank one；
Nitrogen pipeline, the outlet of the nitrogen pipeline are located at the inside of the water tank one.
3. online high temperature and pressure radiation corrosion simulation system according to claim 2, it is characterised in that: the oxygen hose
The end that road, hydrogen pipeline and nitrogen pipeline are located inside water tank one is also connected with micron order gas distributor.
4. online high temperature and pressure radiation corrosion simulation system according to claim 1, it is characterised in that: further include
Circulating pump, the entrance of the circulating pump and outlet are respectively connected to the outlet of water tank two and the entrance of high-pressure pump；
Water chemistry monitor branch, the entrance and exit of the water chemistry monitor branch be respectively connected to the circulating pump outlet and
The entrance of the water tank one.
5. online high temperature and pressure radiation corrosion simulation system according to claim 4, it is characterised in that: the aquation school superintendent
Surveying branch includes oxygen analyser, PH controller and corrosion potential measuring instrument, the oxygen analyser, PH controller and corrosion potential measuring instrument
It sequentially concatenates, the entrance of the corrosion potential measuring instrument is connected to the outlet of the circulating pump, the outlet connection of the oxygen analyser
To the entrance of water tank one.
6. online high temperature and pressure radiation corrosion simulation system according to claim 5, it is characterised in that: further include
Pulse damper, the pulse damper are set between the high-pressure pump and the preheater；
Normal atmosphere filter, the normal atmosphere filter are set between the circulating pump and the high-pressure pump；
Ion exchange resin, the ion exchange resin are set between the water tank one and the collecting tank.
7. online high temperature and pressure radiation corrosion simulation system according to claim 1, it is characterised in that: further include two and penetrate
Line cummulative metering detector and an acquisition terminal, two ray cummulative metering detectors are respectively arranged at the water tank
Two sides close or far from the radioactive source, two ray cummulative metering detectors electrically connect with acquisition terminal respectively
It connects.
8. a kind of online high temperature and pressure radiation corrosion analogy method, it is characterised in that: including
Sample to be tested is placed in autoclave, and is passed through recirculated water into autoclave；
It is irradiated first using radioactive source into the recirculated water in autoclave, is then pressurizeed and heated, then be passed through high pressure
In kettle；
Cooling and reduced pressure treatment are carried out to the recirculated water for leaving autoclave.
9. a kind of online high temperature pressure corrosion analogy method, it is characterised in that: including
Sample to be tested is placed in autoclave, and is passed through recirculated water into autoclave；
Nitrogen and/or hydrogen are passed first into the recirculated water in autoclave, and to oxygen content, PH and the corrosion electricity in recirculated water
Position is detected, and is then pressurizeed and is heated, then is passed through in autoclave；
Cooling and reduced pressure treatment are carried out to the recirculated water for leaving autoclave.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551482A (en) * | 2020-05-15 | 2020-08-18 | 中国核动力研究设计院 | Comprehensive dynamic water corrosion test device with high-temperature and high-pressure one-loop and two-loop linkage operation |
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Application publication date: 20190726 |