CN207894750U - A kind of cladding tubes internal pressure explosion bulge test device - Google Patents
A kind of cladding tubes internal pressure explosion bulge test device Download PDFInfo
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- CN207894750U CN207894750U CN201721798364.4U CN201721798364U CN207894750U CN 207894750 U CN207894750 U CN 207894750U CN 201721798364 U CN201721798364 U CN 201721798364U CN 207894750 U CN207894750 U CN 207894750U
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Abstract
The utility model is related to cladding tubes internal pressure explosion bulge test devices, including first medium source, second medium source, vacuum heater, the cladding tubes being arranged in vacuum heater, it is connect with first medium source and second medium source and is connected to the pressure medium conveyance conduit that pressure medium is delivered to cladding tubes with cladding tubes, at least one temperature sensing head of detection cladding tube temperature is set on vacuum heater, the pressure relief device that is arranged on vacuum heater and the control device that control vacuum heater heating and control pressure medium delivery pipe road pumped (conveying) medium is connect with vacuum heater and pressure medium conveyance conduit；Control device includes the first mode of control pressure medium delivery pipe road conveying first medium at the first temperature；And control pressure conveyance conduit conveys the second mode of second medium at the second temperature.The cladding tubes internal pressure explosion bulge test device can be used for bearing capacity of the analogue measurement cladding tubes in accident conditions high temperature, hyperbaric environment occur for nuclear power station.
Description
Technical field
The utility model is related to experimental rigs, more specifically to a kind of cladding tubes internal pressure explosion bulge test device.
Background technology
Cladding nuclear fuels pipe is first of barrier of nuclear reactor safety, can ensure to contain core under the conditions of longtime running
The radioactive fission product that block nuclear fission generates, does not generate the leakage of radioactive substance.Zirconium alloy cladding pipe has intensity height, resistance to
The features such as corrosive nature is good, and neutron absorption cross-section is low is the cladding materials that nuclear power station is most widely used.But zirconium alloy cladding pipe
Also the defect for having its own, when primary Ioops dehydration or the whole audience loss of power accident occur for power station, cladding tube temperature rises rapidly, with water
Violent chemical reaction occurs for steam, and generated hydrogen is accumulated in containment, and then causes hydrogen quick-fried, leads to a large amount of radioactive materials
Matter can be discharged into environment, and pollutes environment, endangers human health, therefore develop cladding materials of new generation, improve it in thing
Therefore it is one of the important directions of the following nuclear power developing to the containing ability of radioactive fission product under operating mode.
Accident fault tolerant fuel cladding tubes are the cladding tubes of new generation that international nuclear safety tissue is proposed after Fukushima, Japan accident,
It is required that the complicated severe operating mode such as high temperature, high pressure and alternate stress can be born, eliminates and generate the quick-fried possibility of hydrogen under accident conditions
Property, it is ensured that the containing ability of radioactive fission product under accident conditions.When nuclear power station generation primary Ioops dehydration or the whole audience are disconnected
When electrification, cladding tube temperature cannot be taken away by coolant in time, and temperature rises rapidly, on the one hand, cladding tubes intensity can be with temperature
Degree is increased and is reduced rapidly；On the other hand by equation of gas state PV=nRT (P gas pressure intensities；V gas volumes；The object of n gases
The amount of matter；R gas constants；T system temperatures) it is found that when gas flow is constant in cladding tubes, temperature increases, involucrum overpressure
Rapid to increase, two aspect comprehensive functions cause cladding tubes broken, discharge radioactive fission product, pollute environment.Therefore in carrying out
Blasting experiment is pressed, is weighing apparatus to evaluate accident fault tolerant fuel cladding tubes in high temperature, hyperbaric environment to keep the ability of itself integrality
Can it be measured enter one of the major criterion of heap military service.
Currently, nuclear power industry is designed with internal pressure bursting test machine primarily directed to active service presurized water reactor zirconium alloy cladding pipe,
Generally use liquid medium pressurization burst mode, pressure medium are high-temperature silicon oil, and temperature parameter is room temperature~400 DEG C, to prevent
Cladding tubes aoxidize, vacuum degree ＜ 10 in stove-3Pa.The internal pressure bursting test machine can preferably simulate 400 DEG C or less zircaloy packets
The bearing capacity of package calculates the circumferential strength for obtaining cladding tubes.But high-temperature silicon oil main component is polysiloxanes, in temperature
It when more than 400 DEG C, is decomposed destruction at branch, on the one hand, the high-temperature silicon oil after decomposing can cause pressure in pressure process to be lost
Surely, pressure oscillation is generated, the accuracy measured is influenced, and cannot achieve the continuous and effective of cladding tubes in the case of severe decomposition
Supercharging；On the other hand, the high-temperature silicon oil after decomposition will produce a large amount of carbon, is attached to involucrum inside pipe wall, in the case of a high temperature can
With involucrum tube reaction, leads to cladding tubes performance change, influence measurement accuracy.
For accident fault tolerant fuel cladding tubes, temperature of the internal pressure explosion bulge test parameter Primary Reference cladding tubes under accident conditions
Degree and pressure state, temperature parameter is room temperature~1200 DEG C, to prevent cladding tubes from aoxidizing, vacuum degree ＜ 10 in stove-3Pa.It can see
Go out, current internal pressure blasting gear is mesh far from the test parameter requirement for meeting accident fault tolerant fuel cladding tubes, main cause
It is single liquid medium pressurization blasting system that bursting test machine is wanted in pronucleus industry, and heating furnace heating temperature is low, and pressure medium is
High-temperature silicon oil cannot achieve high temperature (400 DEG C of ＞) internal pressure explosion.
Utility model content
The technical problem to be solved by the present invention is to providing one kind can solve to cannot achieve high temperature (400 DEG C of ＞)
Internal pressure explosion, can not the fault-tolerant cladding tubes of analogue measurement accident nuclear power station occur accident conditions after, holding in high temperature, hyperbaric environment
The experimental rig of pressure energy power.
Technical solution adopted by the utility model to solve its technical problems is：Construct a kind of cladding tubes internal pressure explosion bulge test
Device, including first medium source, second medium source, vacuum heater, the cladding tubes being arranged in the vacuum heater,
It connect and is connected to the cladding tubes with the first medium source and the second medium source and pressure medium is delivered to the packet
At least one temperature that the cladding tube temperature is detected on the vacuum heater is arranged in the pressure medium conveyance conduit of package
Degree detecting head, the pressure relief device that is arranged on the vacuum heater and with the vacuum heater and the pressure
The connection of power media conveyance conduit controls the control of the vacuum heater heating and control pressure medium delivery pipe road pumped (conveying) medium
Device processed；
The control device includes control pressure medium conveyance conduit conveying first medium at the first temperature the
One pattern；And the second mode of the head conduit conveying second medium is controlled at the second temperature.
Preferably, the first medium source is liquid medium source；The second medium source is gaseous medium source；
The first mode includes liquid medium burst mode；
The second mode includes gaseous medium burst mode；
First temperature is less than the temperature that the liquid medium decomposes；
The second temperature is higher than the temperature that the liquid medium decomposes.
Preferably, the liquid pressure medium includes high-temperature silicon oil；
The gaseous pressure medium includes inert gas；
First temperature is less than 400 DEG C；
The second temperature is higher than 400 DEG C.
Preferably, the vacuum heater includes heating furnace, the vacuum sealing components that are arranged on the heating furnace, sets
At least one section of calandria set the base of ceramic in the heating furnace and be arranged on the base of ceramic；
The cladding tubes are arranged in the calandria.
Preferably, the calandria is molybdenum filament；
At least one section of calandria includes the first segment calandria, second segment calandria and third section set gradually
Calandria；
At least one temperature sensing head include the first temperature sensing head being arranged on the first segment calandria, setting exist
Second temperature detecting head on the second segment calandria and the third temperature sensing being arranged on the third section calandria
Head.
Preferably, the heating furnace is equipped with for stretching into for the pressure medium conveyance conduit and being connect with the cladding tubes
One opening；The vacuum sealing components are arranged in first opening；
Preferably, the vacuum sealing components include the vacuum flange being arranged in first opening and fixed institute
State the vacuum sealing fast clip of vacuum flange；
The pressure medium conveyance conduit is fixedly installed by the vacuum sealing fast clip.
Preferably, the cladding tubes internal pressure explosion bulge test device further includes being set in the cladding tubes periphery and positioned at described
Guard assembly in base of ceramic；
The pressure medium conveyance conduit is arranged in one end of the guard assembly；
The other end in the guard assembly is arranged in the pressure medium release device.
Preferably, the guard assembly includes being set in the protective sleeve of the cladding tubes periphery and being arranged described
Protective sleeve both ends prevent the first seal plug and the second seal plug of pressure release to be sealed；
Preferably, the pressure relief device includes connecting with the protective sleeve and being stretched out from the vacuum heater
Pressure medium release pipeline and the pressure medium release pipeline connection released with the gaseous pressure medium for conveying gaseous medium
It puts valve and is connected to pressure medium release pipeline to convey the fluid pressure relief valve of liquid medium.
The cladding tubes internal pressure explosion bulge test device and its test method for implementing the utility model, have the advantages that：
The cladding tubes internal pressure explosion bulge test device, by the pressure medium conveyance conduit that is connect with first medium source and second medium source to
Cladding tubes discharge pressure medium in the vacuum heater makes the cladding tubes explosion, also by least one temperature sensing
Head is capable of the temperature of the real-time detection cladding tubes, can be released stress convenient for the vacuum heater by pressure relief device,
By the way that first mode and second mode is arranged in control device so that the pressure medium conveyance conduit can be defeated at the first temperature
It send first medium to carry out boosting explosion, conveys second medium at the second temperature and carry out boosting explosion.As it can be seen that the cladding tubes internal pressure
Explosion bulge test device, which is one kind, can realize that high temperature, high vacuum, the controllable internal pressure explosion bulge test device of the rate of rise can be used for mould
Quasi- measurement accident fault tolerant fuel cladding tubes are after accident conditions occur for nuclear power station, the bearing capacity in high temperature, hyperbaric environment, are thing
Therefore fault tolerant fuel cladding tubes security performance assessing under accident conditions provides important data reference.
It, can at different temperatures, to involucrum by using the cladding tubes internal pressure explosion bulge test device of the utility model
Pipe injects different medium, carries out boosting explosion, is suitable for the accident conditions of different temperatures, is particularly suitable for high temperature (400 DEG C of ＞)
Internal pressure explosion.The cladding tubes internal pressure explosion bulge test method is easy to operate, applied widely.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the sectional view of the utility model cladding tubes internal pressure explosion bulge test device.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
Fig. 1 shows a preferred embodiment of the utility model cladding tubes internal pressure explosion bulge test device,
The cladding tubes internal pressure explosion bulge test device, which is one kind, can realize high temperature, high vacuum, the controllable internal pressure of the rate of rise
Explosion bulge test device can be used for the fault-tolerant cladding tubes of analogue measurement accident after accident conditions occur for nuclear power station, high temperature, hyperbaric environment
In bearing capacity, for the fault-tolerant cladding tubes of accident, security performance assessing provides important data reference under accident conditions.
The cladding tubes internal pressure explosion bulge test device, including first medium source, second medium source, vacuum heater 11, set
Set the cladding tubes 12 in the vacuum heater 11, connect with the first medium source and second medium source and with the cladding tubes 12
Pressure medium is delivered to the pressure medium conveyance conduit 15 of the cladding tubes 12, is arranged on the vacuum heater 11 and visits by connection
At least one temperature sensing head 13 for surveying 12 temperature of cladding tubes, the pressure relief device being arranged on the vacuum heater 11
16 and connect with the vacuum heater 11 and the pressure medium conveyance conduit 15 control the vacuum heater 11 heating and
The control device of 15 pumped (conveying) medium of control pressure medium delivery pipe road.
The first medium source, the second medium source can provide pressure medium for the 12 vacuum explosion of cladding tubes.The vacuum adds
Thermal 11 can give the cladding tubes 12 to heat, and the cladding tubes 12 is made to be in vacuum environment.It is anti-that the cladding tubes 12 can be used for core
Answer heap.The temperature sensing head 13 can carry out real time temperature detection to the cladding tubes 12.The pressure medium conveyance conduit 15 can
Pressure medium is delivered to cladding tubes 12 and carries out boosting explosion.Pressure medium can be delivered to by the pressure medium release device 16
Outside vacuum heater 11, pressure medium is avoided to pollute the vacuum heater 11.
The first medium source can be liquid medium source, and specifically, liquid medium can be high-temperature silicon oil, using high temperature silicon
Oil pressure power media, the feature for having pressurization steady, small to explosion mouth secondary damage；The second medium source can be gaseous medium
Source, specifically, gaseous medium can be inert gas, it is preferable that gas medium Ar.Inert gas is relatively stable, in high temperature
It is not easily decomposed under high pressure, the cladding tubes 12 can be made effectively to be pressurized.The first medium source and the second medium source can pass through setting
Pipeline is connect with the pressure medium conveyance conduit 15, for 12 pumped (conveying) medium of cladding tubes.
The vacuum heater 11 includes heating furnace 111, the vacuum sealing components 113 being arranged on the heating furnace 111, sets
At least one section of calandria 114 set the base of ceramic 112 in the heating furnace 111 and be arranged on the base of ceramic 112.
The heating furnace 111 can form the confined space for heating cladding tubes 12, which can be to the heating furnace
111 carry out vacuum sealing, and the vacuum degree for improving the heating furnace also has seal.The base of ceramic 112 can be used for installing the heating
Body, the calandria are electric heating body, can generate heat by conducting.
The heating furnace 111 is high temperature resistant, the metal material of high pressure is made and is connected with circulating cooling water conservation.The heating furnace
111 are equipped with the first opening 1111 stretched into for the pressure medium conveyance conduit 15.It is to be appreciated that first being open by this
1111, which can extend into connect with the cladding tubes 12, to give 12 discharge pressure of cladding tubes to be situated between
Matter.In the present embodiment, which further includes the second opening 1112 being oppositely arranged with first opening 1111.Pass through
Second opening 1112, the pressure medium release device 16 can stretch out from second opening 1112, pressure medium discharged
It is delivered to outside vacuum heater and discharges.In addition, the valve for vacuumizing is additionally provided on the heating furnace 111, in order to this
Heating furnace 111 vacuumizes.
The base of ceramic 112 is arranged in the top of second opening 1112, and is connected to second opening 1112, in order to
The pressure medium release device 16 is stretched out from the base of ceramic 112 and second opening 1112.The base of ceramic 112 can be used as this
The mounting base of calandria 114.
The vacuum sealing components 113 setting is at first opening 1111, to seal first opening 1111.The vacuum
Seal assembly 113 includes the vacuum flange 1131 being arranged in first opening 1111 and fixes the true of the vacuum flange 1131
Sky sealing fast clip 1132.Specifically, the vacuum flange 1131 and the flange-interface at 111 top of heating furnace are fast by vacuum sealing
1132 connection of folder, to seal first opening 1111.
In the present embodiment, which may be used molybdenum filament and is made, and molybdenum filament material calandria is suitble in high vacuum,
It is run for a long time in hot environment, is not easy to be damaged in a vacuum, meet the requirement that cladding tubes 12 are tested in vacuum environment.It can manage
Xie Di does calandria using molybdenum filament, and heating effect is good, stability is high.
At least one section of calandria includes one section of calandria, two sections of calandrias, three sections of calandrias or multistage heating body for this.
In the present embodiment, it is preferable that at least one section of calandria include the first segment calandria set gradually, second segment calandria, with
And third section calandria.It is to be appreciated that by the way that multistage heating body is arranged, which can be enable by power regulation
Enough thermally equivalent heatings.
The cladding tubes 12 are arranged in the base of ceramic 112, and are threaded through in the guard assembly 14.The cladding tubes 12 are core
First of barrier of reactor safety can ensure to contain the radioactive fission that chip nuclear fission generates under the conditions of longtime running
Product does not generate the leakage of radioactive substance.Zirconium alloy can be used into the high, corrosion resistance with intensity in the cladding tubes 12
Can be good, neutron absorption cross-section is low the features such as.It is to be appreciated that the material of the cladding tubes 12 is not limited to zircaloy, can also be used most
That newly develops has intensity high, and corrosion resistance and good does not generate the material for the features such as hydrogen is quick-fried.
At least one temperature sensing head 13 can detect the temperature of the cladding tubes 12, and temperature feedback is given to control dress
It sets, which includes a temperature sensing head, two temperature sensing heads or three temperature sensing heads.
In this embodiment, it is preferred that at least one temperature sensing head includes the first temperature being arranged on the first segment calandria
Detecting head 131, the second segment temperature sensing head 132 being arranged on second calandria and setting are on the third section calandria
Third temperature sensing head 133.Compared to single-point thermometric, carrying out segmentation thermometric by the multiple temperature sensing heads of setting can protect
Entire cladding tube temperature uniformity is demonstrate,proved, avoids measurement accuracy impacted.It is to be appreciated that the quantity of the temperature sensing head can be with
The hop count of the calandria is consistent.
The first temperature sensing head 131, the second temperature detecting head 132 and the third temperature sensing head 133 are stretched respectively
Enter in guard assembly 14 and is connect with the cladding tubes, after detecting corresponding calandria heating, the temperature of corresponding position on cladding tubes 12
Degree, to ensure 12 homogeneous heating of cladding tubes.The first temperature sensing head 131, the second temperature detecting head 132 and the third
Temperature sensing head 133 can carry pressure sensor, then can guarantee the first temperature sensing head 131, the second temperature detecting head
132 and the third temperature sensing head 133 against 12 outer surface of cladding tubes simultaneously it is unlikely make 12 surface of cladding tubes generate defect,
To have the function that accurately control temperature and not influence 12 internal pressure performance measurement of cladding tubes.
The cladding tubes internal pressure explosion bulge test device further includes being set in 12 periphery of cladding tubes and in the calandria 114
Guard assembly 14, pressure medium flows in vacuum heater 11 after which can be used for preventing explosion, and damage is true
Important component in empty heating device 11, the guard assembly 14 include the protective sleeve 141 for being set in 12 periphery of the cladding tubes, with
And the first seal plug 142 and the second seal plug 143 at 141 both ends of the protective sleeve are set.The protective sleeve 141 can be prevented
Only the medium after explosion is discharged to the heating furnace 1111, leads to the parts damages in heating furnace 1111.First seal plug 142
With second seal plug 143 to ensure the leakproofness of the cladding tubes 12 pressurization.
The protective sleeve 141 is set in the periphery of the cladding tubes 12 and is arranged in the calandria 114.The protective sleeve
141 can be cylindrical, has a diameter larger than the diameter of the cladding tubes 12, is less than the diameter of the calandria 114.And the protective jacket
The length of cylinder 141 is more than the length of the cladding tubes 12 so that, which can be entirely provided in the protective sleeve 141.
First seal plug 142 and second seal plug 143 are high temperature high voltage resistant seal plug, are respectively placed in
The inside of protective sleeve 141 connect with the cladding tubes 12, ensure that the leakproofness of cladding tubes 12 and entire compression system, avoid
12 pressure release of cladding tubes.
The pressure medium conveyance conduit 15 is arranged in one end of guard assembly 14, and by the way that seal snap ring 17 is arranged and is somebody's turn to do
First seal plug 142 connects, to ensure that the leakproofness of the cladding tubes 12, also guaranteed pressure medium can be delivered to cladding tubes
Pressurization explosion is carried out in 12.The pressure medium conveyance conduit 15 is fixedly installed by the vacuum sealing fast clip 1132, to ensure
The leakproofness of the heating furnace 111.The pressure medium conveyance conduit 15 its can by connecting first medium source and second medium source
Different pressure mediums is conveyed according to condition of different temperatures.In the present embodiment, which can transport gas
State pressure medium can also convey liquid pressure medium.
The other end in the guard assembly 14 is arranged in the pressure medium release device 16, and is stretched from the vacuum heater 11
Go out setting, the medium in guard assembly 14 is delivered to outside vacuum heater 11, in favor of the recycling and again of pressure medium
It utilizes.Pressure medium is avoided to pollute environment.The pressure medium release device 16 includes being connect with the guard assembly 14 and true from this
The gas that empty heating device 11 stretches out the pressure medium release pipeline 161 of setting and is connected to pressure medium release pipeline 161
State pressure medium relief valve 1621 and the liquid pressure relief valve 1622 being connected to pressure medium release pipeline 161.The pressure
Pressure medium can be delivered to outside vacuum heater 11 by power media release pipeline 161.
High temperature resistant can be used in pipeline 161, high voltage bearing metal is made for pressure medium release.The pressure medium discharges pipeline
161 connect with the protective sleeve 141, and stretch out the base of ceramic 112 setting, to convey the medium in the protective sleeve 141.It should
The diameter of pressure medium release pipeline 161 and the bore of second opening 1112 are of substantially equal, to have the function that sealing, protect
It holds the heating furnace 111 and is in vacuum state.The length of pressure medium release pipeline 161 can be arranged according to actual needs, can
Pressure medium is delivered to retracting device, in order to the recycling and reuse of pressure medium.
The gaseous pressure medium relief valve 1621 and the liquid pressure medium relief valve 1622, have the effect that, first,
During being vacuumized to the heating furnace 111, external pressure is more than 111 internal pressure of heating furnace, passes through pressure difference, the gaseous state pressure
Power media relief valve 1621 realizes the sealing of relying on oneself of valve；The liquid pressure medium relief valve 1622 can be fastened by hand thread
Sealing；Ensure the vacuum degree in heating furnace 111 and sealing effect；Second, after 12 explosion of cladding tubes, the amounts of pressurized gaseous that releases
Medium can cause internal pressure to increase, and so that gaseous pressure medium relief valve 1621 is automatically opened, achieve the effect that pressure release, the liquid
Pressure relief valve 1622 can discharge the liquid pressure medium after explosion, be convenient for pressure medium recycling.
The control device can control the pressure medium conveyance conduit 15 and convey different media according to different temperatures.
In the present embodiment, which includes controlling the pressure medium conveyance conduit 15 conveying first medium at the first temperature
First mode；And the second mode of the head conduit 15 conveying second medium is controlled at the second temperature.Pass through setting
First mode and second mode so that the cladding tubes pressure resistance demolition set is applicable to the nuclear power plant accident work of simulation different temperatures
Condition increases the scope of application of the cladding tubes pressure resistance demolition set.
The first mode includes liquid medium burst mode；Specifically, 13 institute of temperature sensing head is received in control device
First temperature of feedback, and first temperature is less than the temperature that the liquid medium decomposes, and which controls pressure Jie
Matter conveyance conduit 15 is pumped into liquid medium to cladding tubes 12 and boosts, until 12 explosion of cladding tubes, to obtain cladding tubes 12
Maximum bearing capacity, and then be inferred to cladding tubes nuclear power station occur accident conditions under, less than the liquid medium decompose temperature
Bearing capacity in the hyperbaric environment of degree, for cladding tubes, security performance assessing provides important data reference under accident conditions.
In the present embodiment, when the first temperature that temperature sensing head 13 is fed back is less than 400 DEG C, it is defeated that control device controls the pressure medium
Pipeline 15 is sent to convey high-temperature silicon oil.
When temperature is more than liquid medium decomposition temperature, hydraulic medium decomposes ingredient and is destroyed, in the present embodiment, high temperature silicon
Oil is decomposed destruction more than 400 DEG C at branch, on the one hand, the high-temperature silicon oil after decomposing can lead to pressure mistake in pressure process
Surely, pressure oscillation is generated, the accuracy measured is influenced, and cannot achieve the continuous and effective of cladding tubes in the case of severe decomposition
Supercharging；On the other hand, the high-temperature silicon oil after decomposition will produce a large amount of carbon, be attached to 12 inner wall of cladding tubes, in the case of a high temperature
It can be reacted with cladding tubes 12, lead to cladding tubes performance change, influence measurement accuracy.Therefore it when temperature is more than 400 DEG C, uses
Second mode.
The second mode includes gaseous medium burst mode, specifically, it is anti-to receive temperature sensing head 13 in control device
The second temperature of feedback, and the second temperature is higher than the temperature that the liquid medium decomposes, and which controls the pressure medium
Conveyance conduit 15 is pumped into gaseous medium to cladding tubes 12 and boosts, until 12 explosion of cladding tubes, thus to cladding tubes 12
Maximum bearing capacity, and then cladding tubes are inferred in the case where accident conditions occur for nuclear power station, the temperature decomposed higher than the liquid medium
Hyperbaric environment in bearing capacity, for cladding tubes, security performance assessing provides important data reference under accident conditions.
In the present embodiment, when the second temperature that temperature sensing head 13 is fed back is higher than 400 DEG C, control device controls pressure medium conveying
Pipeline 15 conveys inert gas.
It, can at different temperatures, to involucrum by using the cladding tubes internal pressure explosion bulge test device of the utility model
Pipe injects different medium, carries out boosting explosion, is suitable for the accident conditions of different temperatures, and it is quick-fried to solve the single pressure medium of tradition
Broken disadvantage can either realize core cladding tubes high temperature explosion (accident conditions), and can ensure after low-temperature zone cladding tubes explosion
The subsequent analysis of cut dissolves into heap and provides important support for the out-of-pile performances screening of cladding tubes and subsequent business.
The test method of the cladding tubes internal pressure explosion bulge test device, includes the following steps：
S1, the first temperature T is being set1Under, first medium is injected to the cladding tubes, and record pressure when cladding tubes explosion
Power P1。
Wherein, which is liquid medium, and specifically, which is high-temperature silicon oil, first temperature T1It is low
In the temperature that the liquid medium decomposes；Specifically, first temperature T1Less than 400 DEG C.
Specifically, step S1 is further comprising the steps of,
S1.1, liquid medium is added to the cladding tubes, the cladding tubes internal pressure explosion bulge test device is installed, and ensure it
Air-tightness；Cladding tubes are connect with the second seal plug, control device control pressure medium delivery pipe road conveys liquid medium extremely
The air in cladding tubes is drained in cladding tubes, is then being connect cladding tubes with the first seal plug, and be put into protective sleeve,
Then, pressure medium conveyance conduit is connect with first seal plug, it is being connect with the high pressure flange, it is close by vacuum
Envelope fast clip is fixed, and integrated tooling is completed.It further include the setting the according to nuclear power station conventional working temperature before liquid medium is added
One temperature T1, and input the first temperature T into the control system of the cladding tubes internal pressure explosion bulge test device control device1。
S1.2, startup dual-power vacuum extraction system vacuumize the cladding tubes internal pressure explosion bulge test device；And it obtains
The cladding tubes internal pressure explosion bulge test device vacuum degree, judges whether the vacuum degree reaches 10-3The Pa orders of magnitude；It is preceding first to open
Mechanical pump vacuumizes inside heating furnace, opens molecular pump when vacuum degree reaches in the sections 5~0Pa, further increases in stove
Vacuum degree, and the vacuum degree of the cladding tubes internal pressure explosion bulge test device is obtained, judge whether the vacuum degree reaches 10-3Pa quantity
Grade.
S1.3, if so, heating the first temperature T that the cladding tubes to temperature reaches setting1；
If not：Repeat step S1.2-S1.3；
When the vacuum degree of heating furnace reaches 10-3The Pa orders of magnitude, control device control calandria are heated to the first of setting
Temperature T1.If the vacuum degree of heating furnace is not up to 10-3The Pa orders of magnitude, then the molecular pump continue to the heating stove evacuation, directly
Vacuum degree to heating furnace reaches 10-3The vacuum degree of the Pa orders of magnitude, hot stove to be added reaches 10-3After the Pa orders of magnitude, control device
Control calandria is heated to the first temperature T of setting1。
S1.4, the temperature T for obtaining the cladding tubes, and judge whether the temperature T is equal to the first temperature T1；The temperature
Degree detecting head detects the temperature of the cladding tubes, and temperature T feedback is given to control device, control device by temperature T with
First temperature T of setting1It is compared, judges whether it is equal.
S1.5, if so, kept the temperature to the cladding tubes, and liquid medium is pumped into boost, until the cladding tubes are broken
It splits；
If it is not, continuing to heat the cladding tubes, and repeat S1.4-S1.5；
As the first temperature T of temperature T and setting1It is equal, stop heating and the cladding tubes are kept the temperature, keeps the temperature 1h, control
Device control pressure medium delivery pipe road is pumped into liquid medium, to be pressurized, until cladding tubes explosion.When temperature T is not up to
First temperature T of setting1, control device control calandria continues to heat, until the first temperature T of temperature T and setting1It is equal, it waits for
The first temperature T of temperature T and setting1It is equal, stop heating and the cladding tubes are kept the temperature, keeps the temperature 1h, control device control
Pressing pressure medium delivery pipe road is pumped into liquid medium, to be pressurized, until cladding tubes explosion, record pressure P1。
S2, second temperature T is being set2Under, second medium is injected to the cladding tubes, and record pressure when cladding tubes explosion
Power P2。
Wherein, which is gaseous medium, and specifically, which is gaseous inert gas, second temperature T2It is high
In the temperature that the liquid medium decomposes, specifically, second temperature T2Higher than 400 DEG C.
Specifically, step S2 is further comprising the steps of；
S2.1, gaseous medium is added to the cladding tubes, the cladding tubes internal pressure explosion bulge test device is installed, and ensure it
Air-tightness；Gaseous medium is added to the cladding tubes, the cladding tubes internal pressure explosion bulge test device is installed, and ensure that its is airtight
Property；Cladding tubes are connect with the second seal plug, control device control pressure medium delivery pipe road conveys gaseous medium to involucrum
The air in cladding tubes is drained in pipe, then cladding tubes is being connect, and be put into protective sleeve with the first seal plug, is being connect
It, pressure medium conveyance conduit is connect with first seal plug, it is being connect with the high pressure flange, is passing through vacuum sealing
Fast clip is fixed, and integrated tooling is completed.Further include according to nuclear power station conventional working temperature, setting second before gaseous medium is added
Temperature T2, and second temperature T is inputted into the control system of the cladding tubes internal pressure explosion bulge test device control device2。
S2.2, startup dual-power vacuum extraction system vacuumize the cladding tubes internal pressure explosion bulge test device；And it obtains
The cladding tubes internal pressure explosion bulge test device vacuum degree, judges whether the vacuum degree reaches 10-3The Pa orders of magnitude；It is preceding first to open
Mechanical pump vacuumizes inside heating furnace, opens molecular pump when vacuum degree reaches in the sections 5~0Pa, further increases in stove
Vacuum degree, and the vacuum degree of the cladding tubes internal pressure explosion bulge test device is obtained, judge whether the vacuum degree reaches 10-3Pa quantity
Grade.
S2.3, if so, heating the second temperature T that the cladding tubes to temperature reaches setting2；
If not：Repeat step S2.2-S2.3；
When the vacuum degree of heating furnace reaches 10-3The Pa orders of magnitude, control device control calandria are heated to the second of setting
Temperature T2.If the vacuum degree of heating furnace is not up to 10-3The Pa orders of magnitude, then the molecular pump continue to the heating stove evacuation, directly
Vacuum degree to heating furnace reaches 10-3The vacuum degree of the Pa orders of magnitude, hot stove to be added reaches 10-3After the Pa orders of magnitude, control dress
Set the second temperature T that control calandria is heated to setting2。
S2.4, the temperature T for obtaining the cladding tubes, and judge whether the temperature T is equal to the second temperature T2；The temperature
Degree detecting head detects the temperature of the cladding tubes, and temperature T feedback is given to control device, control device by temperature T with
The second temperature T of setting2It is compared, judges whether it is equal.
S2.5, if so, kept the temperature to the cladding tubes, and gaseous medium is pumped into boost, until the cladding tubes are broken
It splits；
If it is not, continuing to heat the cladding tubes, and repeat S2.4-S2.5.
As the second temperature T of temperature T and setting2It is equal, stop heating and the cladding tubes are kept the temperature, keeps the temperature 1h, control
Device control pressure medium delivery pipe road is pumped into gaseous medium, to be pressurized, until cladding tubes explosion.When temperature T is not up to
The second temperature T of setting2.Control device control calandria continues to heat, until the second temperature T of temperature T and setting2It is equal, it waits for
The second temperature T of temperature T and setting2It is equal, stop heating and the cladding tubes are kept the temperature, keeps the temperature 1h, control device control
Pressing pressure medium delivery pipe road is pumped into gaseous medium, to be pressurized, until cladding tubes explosion, record pressure P2。
S3, the circumferential stress for obtaining cladding tubes, and assess the bearing capacity of the cladding tubes.It is real-time by pressure sensor
Boost pressure P is recorded, and the involucrum is assessed according to the circumferential stress of cladding tubes by the circumferential stress of calculating acquisition cladding tubes
The bearing capacity of pipe.
In conjunction with Fig. 1, using liquid medium as high-temperature silicon oil, gaseous medium illustrates the cladding tubes internal pressure explosion for being Ar
Test method.
The first temperature T is set in the control system of control device1, first temperature T1Less than 400 DEG C, by the cladding tubes
12 connect with second seal plug 143, the air in high-temperature silicon oil exclusion cladding tubes 12 are added, and by the cladding tubes 12 and be somebody's turn to do
First seal plug 142 connects, and is mounted in the protective sleeve 141, by seal snap ring 17 by the pressure medium conveyance conduit
15 connect with first seal plug 142, and one end of the pressure medium conveyance conduit 15 is fixed on vacuum flange 1131,
It is fixed with vacuum sealing fast clip 1132.Mechanical pump is first opened to being vacuumized inside heating furnace 111, waits for that vacuum degree reaches 5~0Pa
Molecular pump is opened when in section, further increases vacuum degree in stove, and vacuum degree reaches 10 in stove-3After the Pa orders of magnitude, control device
Calandria heating is controlled, until temperature reaches the first temperature T1, stop heating, which kept the temperature, keep the temperature 1h, control
Device control pressure medium delivery pipe road 15 is pumped into high-temperature silicon oil with the rate of pressure rise of 13.8MPa/min, until cladding tubes 12 are quick-fried
It is broken, and record boost pressure P in real time1, after 12 explosion of cladding tubes, liquid medium is conveyed along pressure medium release pipeline 161
It is discharged to liquid pressure medium relief valve 1622.The peripheral force for obtaining the cladding tubes 12 is calculated, the pressure-bearing of the cladding tubes 12 is assessed
Ability.
Second temperature T is set in the control system of control device2, second temperature T2Higher than 400 DEG C, by the cladding tubes
12 connect with second seal plug 143, and Ar is added and excludes air in cladding tubes 12, and the cladding tubes 12 are first close with this
Block head 142 connects, and is mounted in the protective sleeve 141, by the pressure medium conveyance conduit 15 and is somebody's turn to do by seal snap ring 17
First seal plug 142 connects, and one end of the pressure medium conveyance conduit 15 is fixed on vacuum flange 1131, uses vacuum
Fast clip 1132 is sealed to fix.Mechanical pump is first opened to being vacuumized inside heating furnace 111, waits for that vacuum degree reaches in the sections 5~0Pa
Shi Kaiqi molecular pumps further increase vacuum degree in stove, and vacuum degree reaches 10 in stove-3After the Pa orders of magnitude, control device control adds
Hot body heating, until temperature reaches second temperature T2, stop heating, which kept the temperature, keep the temperature 1h, control device control
Pressing pressure medium delivery pipe road 15 is pumped into Ar with the rate of pressure rise of 13.8MPa/min, until 12 explosion of cladding tubes, and record in real time
Boost pressure P2, after 12 explosion of cladding tubes, gaseous medium is delivered to gaseous pressure medium along pressure medium release pipeline 161
Relief valve 1621 discharges.The peripheral force for obtaining the cladding tubes 12 is calculated, the bearing capacity of the cladding tubes 12 is assessed.
It should be understood that above example only expresses preferred embodiments of the present invention, description is more specific
With it is detailed, but it should not be understood as limiting the scope of the patent of the utility model；It should be pointed out that for this field
Those of ordinary skill for, without departing from the concept of the premise utility, can to above-mentioned technical characterstic carry out freely
Combination, various modifications and improvements can be made, these belong to the scope of protection of the utility model；Therefore, all with this practicality
The equivalents and modification that novel right is done, should all belong to the covering scope of the utility model claims.
Claims (10)
1. a kind of cladding tubes internal pressure explosion bulge test device, which is characterized in that add including first medium source, second medium source, vacuum
Thermal (11), be arranged cladding tubes (12) in the vacuum heater (11), with the first medium source and described the
Second medium source connect and be connected to the cladding tubes (12) pressure medium is delivered to the cladding tubes (12) pressure medium it is defeated
At least one temperature that pipeline (15), setting detect the cladding tubes (12) temperature on the vacuum heater (11) is sent to visit
Gauge head (13), be arranged pressure relief device (16) on the vacuum heater (11) and with the vacuum heater
(11) and the pressure medium conveyance conduit (15) connection controls vacuum heater (11) heating and control pressure medium
The control device of conveyance conduit (15) pumped (conveying) medium；
The control device includes control the pressure medium conveyance conduit (15) conveying first medium at the first temperature the
One pattern；And the second mode of the head conduit (15) conveying second medium is controlled at the second temperature.
2. cladding tubes internal pressure explosion bulge test device according to claim 1, which is characterized in that the first medium source is liquid
State medium source；The second medium source is gaseous medium source；
The first mode includes liquid medium burst mode；
The second mode includes gaseous medium burst mode；
First temperature is less than the temperature that the liquid medium decomposes；
The second temperature is higher than the temperature that the liquid medium decomposes.
3. cladding tubes internal pressure explosion bulge test device according to claim 2, which is characterized in that the liquid pressure medium packet
Include high-temperature silicon oil；
The gaseous pressure medium includes inert gas；
First temperature is less than 400 DEG C；
The second temperature is higher than 400 DEG C.
4. cladding tubes internal pressure explosion bulge test device according to claim 1, which is characterized in that the vacuum heater
(11) include heating furnace (111), the vacuum sealing components (113) being arranged on the heating furnace (111), be arranged in the heating
At least one section of calandria (114) of base of ceramic (112) and setting on the base of ceramic (112) in stove (111)；
The cladding tubes (12) are arranged in the calandria (114).
5. cladding tubes internal pressure explosion bulge test device according to claim 4, which is characterized in that the calandria is molybdenum filament；
At least one section of calandria (114) includes the first segment calandria, second segment calandria and third section set gradually
Calandria；
At least one temperature sensing head (13) include the first temperature sensing head (131) being arranged on the first segment calandria,
The second temperature detecting head (132) being arranged on the second segment calandria and be arranged on the third section calandria
Three temperature sensing heads (133).
6. cladding tubes internal pressure explosion bulge test device according to claim 4, which is characterized in that on the heating furnace (111)
It is open (1111) equipped with first connect with the cladding tubes (12) is stretched into for the pressure medium conveyance conduit (15)；It is described true
Empty seal assembly (113) setting is at first opening (1111).
7. cladding tubes internal pressure explosion bulge test device according to claim 6, which is characterized in that the vacuum sealing components
(113) include vacuum flange (1131) and the fixed vacuum flange of the setting in first opening (1111)
(1131) vacuum sealing fast clip (1132)；
The pressure medium conveyance conduit (15) is fixedly installed by the vacuum sealing fast clip (1132).
8. cladding tubes internal pressure explosion bulge test device according to claim 1, which is characterized in that the cladding tubes internal pressure explosion
Experimental rig further includes being set in the cladding tubes (12) periphery and the guard assembly (14) in the calandria (114)；
The one end of pressure medium conveyance conduit (15) setting in the guard assembly (14)；
The other end of pressure medium release device (16) setting in the guard assembly (14).
9. cladding tubes internal pressure explosion bulge test device according to claim 8, which is characterized in that guard assembly (14) packet
Include the protective sleeve (141) for being set in the cladding tubes (12) periphery and setting the protective sleeve (141) both ends with into
Row sealing prevents the first seal plug (142) and the second seal plug (143) of pressure release.
10. cladding tubes internal pressure explosion bulge test device according to claim 9, which is characterized in that the pressure relief device
(16) include the pressure medium release pipeline for connecting with the protective sleeve (141) and being stretched out from the vacuum heater (11)
(161) and pressure medium release pipeline (161) is connected to convey the gaseous pressure medium relief valve of gaseous medium
(1621) and with pressure medium release pipeline (161) it is connected to convey the fluid pressure relief valve of liquid medium
(1622)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798364.4U CN207894750U (en) | 2017-12-20 | 2017-12-20 | A kind of cladding tubes internal pressure explosion bulge test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798364.4U CN207894750U (en) | 2017-12-20 | 2017-12-20 | A kind of cladding tubes internal pressure explosion bulge test device |
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|---|---|
| CN207894750U true CN207894750U (en) | 2018-09-21 |
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ID=63549202
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051321A (en) * | 2017-12-20 | 2018-05-18 | 广东核电合营有限公司 | A kind of cladding tubes internal pressure explosion bulge test device and its test method |
| CN110082288A (en) * | 2019-06-04 | 2019-08-02 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig |
-
2017
- 2017-12-20 CN CN201721798364.4U patent/CN207894750U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051321A (en) * | 2017-12-20 | 2018-05-18 | 广东核电合营有限公司 | A kind of cladding tubes internal pressure explosion bulge test device and its test method |
| CN108051321B (en) * | 2017-12-20 | 2023-08-25 | 广东核电合营有限公司 | Internal pressure explosion test device and test method for cladding tube |
| CN110082288A (en) * | 2019-06-04 | 2019-08-02 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig |
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