CN208060302U - Device for quickly elevating temperature for metal tube explosion bulge test - Google Patents
Device for quickly elevating temperature for metal tube explosion bulge test Download PDFInfo
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- CN208060302U CN208060302U CN201820649344.9U CN201820649344U CN208060302U CN 208060302 U CN208060302 U CN 208060302U CN 201820649344 U CN201820649344 U CN 201820649344U CN 208060302 U CN208060302 U CN 208060302U
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- metal tube
- heating
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- elevating temperature
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Abstract
The utility model discloses a kind of device for quickly elevating temperature for metal tube explosion bulge test, including：Shell, the interior heating chamber for being equipped with accommodating metal tube and the release chamber that explosion space is provided for metal tube；Electrode assembly is threaded through in heating chamber and is connect with metal tube, forms a short-circuit heating circuit quickly heated to metal tube；And heating unit, setting carry out slow heat in shell periphery, to the heating chamber.The utility model can simulate the environment temperature under metal tube accident (the fuel rod temperature of RIA accidents drastically increases operating mode in such as nuclear reactor), metal tube heat temperature raising is in predetermined temperature and interior pressure carries out quick heat temperature raising again, until metal tube ruptures, to study performance of the different metal materials under RIA accidents, and then verify and choose suitable cladding nuclear fuels material, fault-tolerant ability of the nuclear fuel under accident is promoted, and enhances resistivity of the nuclear power plant for major accident operating mode.
Description
Technical field
The utility model is related to metal tube explosion bulge test technical fields more particularly to a kind of for metal tube explosion bulge test
Device for quickly elevating temperature.
Background technology
Nuclear reactor RIA accidents (Reactivity Initiated Accident, reactivity insertion accident) are generally by core
Reactive quickly increase causes, and is embodied in fuel rod internal pressure and surface temperature drastically increases, eventually lead to cladding tubes softening,
Expansion is until explosion.To promote resilience of the fuel element of new generation for major accident, need to utilize experiment in out-pile first
Device carries out simulation test research to fuel rod exemplar.
RIA simulation test devices can be divided into Quick pressurizing device and device for quickly elevating temperature according to the difference of research emphasis again,
And existing device for quickly elevating temperature type is less, and heating efficiency, heating rate, accommodate exemplar bursting property and cannot be satisfied newly
The Research Requirements of type fuel.
In addition, existing device for quickly elevating temperature is rapidly heated based on room temperature, when can not simulate true accident generation
Hot environment residing for fuel rod clad；Exemplar pipe both ends influence the deformation of exemplar when heating explosion by axial constraint
As a result；Using induction heating mode, it is uneven that the intrinsic turn-to-turn interval of induction coil easily causes the heating of sample surface temperature；Heating
Effect and the efficiency of heating surface are poor.
Utility model content
The technical problem to be solved by the present invention is to providing one kind can metal tube local environment temperature under simulated accident
The device for quickly elevating temperature for metal tube explosion bulge test.
Technical solution adopted by the utility model to solve its technical problems is：It provides a kind of for metal tube explosion bulge test
Device for quickly elevating temperature, including：
Shell, the interior heating chamber for being equipped with accommodating metal tube of the shell and the release that explosion space is provided for metal tube
Chamber；
Electrode assembly is threaded through in the heating chamber and is connect with metal tube, with metal tubular at one to metal tube
The short-circuit heating circuit quickly heated；And
Heating unit, setting carry out slow heat in the shell periphery, to the heating chamber.
Preferably, in the shell, the release chamber is located at the top of the heating chamber；The head cover of the shell
It is equipped with the release aperture for being connected to the release chamber.
Preferably, the bottom of the shell, which is equipped with, is connected to the heating chamber, is axially worn for metal tube and electrode assembly
Through-hole into the heating chamber.
Preferably, thermal insulation board is equipped in the shell, the thermal insulation board is located between the heating chamber and release chamber.
Preferably, the electrode assembly includes two electrodes, each described electrode is equipped with one for metal tube to be clamped
Clamping piece；Metal tube is clamped in the indoor top and bottom of the heating chamber in two clamping pieces respectively；
The electrode connects the metal tube by the clamping piece, forms the short-circuit heating circuit.
Preferably, the heating unit includes heating element, burner hearth and insulating layer；The burner hearth is arranged in the shell
Periphery, the heating element is arranged between the burner hearth and shell, and the insulating layer is coated on the outside of the burner hearth.
Preferably, the heating unit further includes the furnace shell being enclosed on the outside of the insulating layer.
Preferably, the device for quickly elevating temperature further includes：
Temperature measurement component carries out thermometric in slow heat and rapid heating process to metal tube respectively.
Preferably, the temperature measurement component includes at least one thermocouple wire and at least one infrared radiation thermometer；
The thermocouple wire connects the heating zone of metal tube across the heating unit with shell；The infrared radiation thermometer with
The heating zone of metal tube is opposite and is arranged on the outside of the heating unit.
Preferably, the temperature measurement component includes two thermocouple wires, is separately connected the both ends of metal tube heating zone.
Preferably, the heating unit is equipped with window to expose the heating zone of metal tube, and the infrared radiation thermometer passes through
The window carries out thermometric to the heating zone of metal tube.
The beneficial effects of the utility model：For the explosion bulge test of metal tube such as fuel rod clad pipe, metal can be simulated
Run affairs thus under environment temperature (the fuel rod temperature of RIA accidents drastically increases operating mode in such as nuclear reactor), metal tube is passed through
Slow heat heating is in predetermined basis temperature and interior pressure carries out quick heat temperature raising again, until metal tube ruptures, with
Performance of the different metal materials under RIA accidents is studied, and then verifies and choose suitable cladding nuclear fuels material, promotes core
Fault-tolerant ability of the fuel under accident, and enhance resistivity of the nuclear power plant for major accident operating mode.
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 that the cross-section structure of the device for quickly elevating temperature for metal tube explosion bulge test of one embodiment of the utility model shows
It is intended to.
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.
As shown in Figure 1, the device for quickly elevating temperature for metal tube explosion bulge test of one embodiment of the utility model, it may include
Shell 10, electrode assembly 20 and heating unit 30.
Wherein, the heating chamber 101 being connected and release chamber 102 are equipped in shell 10, heating chamber 101 is for housing
For the metal tube 1 of explosion bulge test, release chamber 102 is used to provide explosion Free up Memory for metal tube 1.Electrode assembly 20 is worn
It is connect in heating chamber 101 and with metal tube 1, forming one with metal tube 1 heats back the short circuit that metal tube 1 quickly heats
Road.Heating unit 30 corresponds to the periphery that heating chamber 101 is coated on shell 10, and slow heat is carried out to metal tube 1, can be by metal
Pipe 1 is heated to predetermined temperature, such as environment temperature residing under the work of metal tube 1 or accident.
Metal tube 1 includes but not limited to stainless steel tube, zirconium alloy pipe, molybdenum alloy tube etc..
Specifically, in shell 10, release chamber 102 is located at the top of heating chamber 101.The head cover of shell 10 is equipped with
The release aperture 103 of connection release chamber 102 protects the heating unit of periphery for discharging the cavity pressure after metal tube explosion
30.Shell 10 can be made of stainless steel material.
The bottom of shell 10 is equipped with the through-hole (not shown) of connection heating chamber 101, is used for metal tube 1 and electrode assembly 20
Axially pierce into heating chamber 101.Through-hole can correspond to 20 each part of metal tube 1 and electrode assembly outer diameter setting, through-hole with it is corresponding
Gap may be present between each pipe, do not influence the progress of explosion bulge test.
In heating chamber 101, towards release chamber 102, the other end can be at heating chamber 101 for one end of metal tube 1
Lower end or outside the shell 10, depending on the axial length of metal tube 1.In heating chamber 101, the both ends of metal tube 1
It is not affected by axial constraint, the loading process under accident can be simulated realistically.
Thermal insulation board 11 is equipped in shell 10, thermal insulation board 11 is located between heating chamber 101 and release chamber 102, inhibits gold
Belong to heat loss when pipe 1 heats.The quantity of thermal insulation board 11 is not limited to one or more.
Thermal insulation board 11 is lifted on by fixed link in shell 10 in a manner of keeping flat, and through-hole can be laid on thermal insulation board 11,
It is connected to heating chamber 101 and release chamber 102.The outer peripheral edge of thermal insulation board 11 can connect with 10 inner wall of shell or there are gaps.It is right
It is arranged in multiple thermal insulation boards 11, multiple thermal insulation boards 11 are spaced stack successively.
Electrode assembly 20 is threaded through in heating chamber 101, can be parallel with metal tube 1.The one end of electrode assembly 20 stretches out
Shell 10 is to connect power supply.In the present embodiment, electrode assembly 20 includes two electrodes 21, each electrode 21 is used for equipped with one
The clamping piece 22 of metal tube 1 is clamped；Top and bottom of the metal tube 1 in heating chamber 101 are clamped in two clamping pieces 22 respectively.
Electrode 21 connects metal tube 1 by clamping piece 22, forms short-circuit heating circuit, realizes short circuit quickly heating so that 1 table of metal tube
Face heating is more uniformly distributed.
As shown in fig. 1, metal tube 1 is clamped towards the upper end of 10 head cover of shell, separately in a clamping piece 22 on an electrode 21
Gold of the metal tube 1 between the lower end of 10 bottom of shell, two clamping pieces 22 is clamped in one clamping piece 22 on another electrode 21
Belong to the heating zone that tube portion forms metal tube 1, and in short-circuit heating circuit；The big electricity that metal tube 1 is generated in electrode 21
Achieve the purpose that under stream effect be rapidly heated (heating rate is not less than 200 DEG C/s).
Alternatively, electrode 21 and clamping piece 22 can be used copper product and be made, and thermal conductivity is good.
Heating unit 30 surrounds heating chamber 101 in 10 periphery of shell, to heating chamber 101 and its interior metal tube 1
Slow heat (5-10 DEG C of heating rate/min).Heating unit 30 may include heating element 31, burner hearth 32 and insulating layer 33.Stove
Thorax 32 is arranged in the periphery of shell 10, and heating element 31 is arranged between burner hearth 32 and shell 10, and insulating layer 33 is coated on burner hearth
32 outside coats the circumferential lateral surface of burner hearth 32 and both ends end face.
Tubular structure made of polycrystalline alumina fiber can be used in burner hearth 32, encloses and overlays on 10 outside of shell.Heating element 31
It can be fixed on the periphery of shell 10 or in the inner circumferential of burner hearth 32.
Heating element 31 can be resistance wire, be wrapped in the periphery of shell 10 or the inner circumferential of burner hearth 32, burner hearth 32 is in shell 10
Periphery covering heating elements 31 help to be evenly heated.Insulating layer 33 plays heat preservation and supporting role, it can be achieved that in a certain temperature
Under heat preservation.Insulating layer 33 can be selected 1260 type polycrystalline alumina fibers and be made.
Further, heating unit 30 further includes the furnace shell 34 for being enclosed in 33 outside of insulating layer, plays the role of support, and
Burner hearth 32, insulating layer 33 etc. are located in it between shell 10.
The device for quickly elevating temperature of the utility model further includes temperature measurement component, respectively in slow heat and rapid heating process
Thermometric is carried out to metal tube 1.The temperature measurement component may include at least one thermocouple wire 41 and at least one infrared radiation thermometer 42,
Thermocouple wire 41 passes through heating unit 30 and shell 10 connects the heating zone of metal tube 1, and infrared radiation thermometer 42 adds with metal tube 1
Hot-zone is opposite and the thermometric requirement met in 30 outside of heating unit at a slow speed and under quick two kinds of heating modes is arranged.
In the present embodiment, temperature measurement component includes two thermocouple wires 41, can correspond to the position point of two clamping pieces 22 clamping
Not Lian Jie 1 heating zone of metal tube both ends；On metal tube 1 tie point of corresponding thermocouples silk 41 be located at two clamping pieces 22 it
Between.The other end of thermocouple wire 41 connects the processing units such as display instrument or recording apparatus outside heating unit 30.
Heating unit 30 is equipped with window 35 to expose the heating zone of metal tube 1, and infrared radiation thermometer 42 is right by window 35
The heating zone of metal tube 1 carries out thermometric.Window 35 runs through furnace shell 34, insulating layer 33 and burner hearth 32 so that infrared radiation thermometer 42
Infrared light spot can pass through window 35 to the surface of metal tube 1.35 size of window is not required to too greatly, it is axial preferably to correspond to metal tube 1
The strip that direction extends, the infrared light spot convenient for infrared radiation thermometer 42 pass through.
Infrared radiation thermometer 42 can be moved axially along metal tube 1 according to demand, be carried out to the temperature of its heating zone everywhere
It measures.
The utility model is used for the method that is rapidly heated of metal tube explosion bulge test, it may include following steps：
S1, metal tube 1 is clamped on electrode assembly 20, and pierced into together in the heating chamber 101 of shell 10, metal tube
1 connect the short-circuit heating circuit of formation one with electrode assembly 20.
Specifically, two electrodes 21 of electrode assembly 20 are clamped by a clamping piece 22 in 1 axial direction of metal tube respectively
Different location.Metal tube 1 is pierced into together with electrode assembly 20 in shell 10,1 part of metal tube of clamping piece 22 and its clamping
It is placed in heating chamber 101, the both ends of metal tube 1 are not affected by axial constraint；The other end of electrode 21 connects electricity outside shell 10
Source.
S2, the inside of metal tube 1 is pressurized, reaches predetermined pressure.
Supercharging is realized using supercharging device connection metal tube 1, stops supercharging after reaching predetermined pressure.The main root of predetermined pressure
It is set needed for experiment according to metal tube 1, such as stainless steel tube, 0-80MPa is pressurized to it.
S3, heating chamber 101 and metal tube 1 are carried out slowly with 5-10 DEG C/min by the heating unit 30 of 10 periphery of shell
Speed is heated to predetermined temperature, is worked residing environment temperature with simulating metal tube 1.
Before step S2, thermocouple wire 41 is sequentially passed through to the furnace shell 34, insulating layer 33 and shell of heating unit 30
10 connection metal tubes 1.Heating element 32 carries out slow heat to metal tube 1, and thermocouple wire 41 surveys metal tube 1 into trip temperature
Amount, heating element 32 automatically adjust the heating rate of slow heat according to the feedback information of thermocouple wire, ensure heating rate not
Higher than 10 DEG C/min.When 1 surface temperature of metal tube reaches predetermined temperature, stop heating.
The predetermined temperature that metal tube 1 is reached by slow heat, as the initial temperature subsequently quickly heated.Predetermined temperature
It is unlimited, depending on the accident local environment temperature mainly simulated by metal tube 1.
S4, short-circuit quickly heating is carried out to metal tube 1 by electrode assembly 20, until metal tube 1 ruptures；Quickly add
The heating rate of heat is not less than 200 DEG C/s.
The position for correcting infrared radiation thermometer 42, ensures that its infrared light spot is located at the surface of metal tube 1.In rapid heating process
In, infrared radiation thermometer 42 carries out thermometric to metal tube 1, exports the temperature signal measured to record the temperature on 1 surface of metal tube in real time
Degree variation, until metal tube 1 ruptures under internal pressure and the condition of high temperature.
The utility model is applied to the cladding tubes of nuclear fuel assembly, studies different metal materials under RIA accidents
Performance, and then suitable cladding nuclear fuels material is verified and chooses, fault-tolerant ability of the nuclear fuel under accident is promoted, and enhance core
Resistivity of the power plant for major accident operating mode.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of device for quickly elevating temperature for metal tube explosion bulge test, which is characterized in that including：
Shell（10）, the shell（10）It is interior to be equipped with accommodating metal tube（1）Heating chamber（101）And it is metal tube（1）It carries
For the release chamber in explosion space（102）；
Electrode assembly（20）, it is threaded through the heating chamber（101）In and and metal tube（1）Connection, with metal tube（1）Form one
It is a to metal tube（1）The short-circuit heating circuit quickly heated；And
Heating unit（30）, it is arranged in the shell（10）Periphery, to the heating chamber（101）Carry out slow heat.
2. device for quickly elevating temperature according to claim 1, which is characterized in that in the shell（10）It is interior, the release chamber
Room（102）Positioned at the heating chamber（101）Top；The shell（10）Head cover be equipped with and be connected to the release chamber
（102）Release aperture（103）.
3. device for quickly elevating temperature according to claim 2, which is characterized in that the shell（10）Bottom be equipped with connection institute
State heating chamber（101）, for supplying the metal tube（1）And electrode assembly（20）Axially pierce into the heating chamber（101）In
Through-hole.
4. device for quickly elevating temperature according to claim 1, which is characterized in that the shell（10）It is interior to be equipped with thermal insulation board
（11）, the thermal insulation board（11）Positioned at the heating chamber（101）With release chamber（102）Between.
5. device for quickly elevating temperature according to claim 1, which is characterized in that the electrode assembly（20）Including two electrodes
（21）, each described electrode（21）One is equipped with for metal tube to be clamped（1）Clamping piece（22）；Two clamping pieces
（22）Metal tube is clamped respectively（1）In the heating chamber（101）Interior top and bottom；
The electrode（21）Pass through the clamping piece（22）Connect the metal tube（1）, form the short-circuit heating circuit.
6. device for quickly elevating temperature according to claim 1, which is characterized in that the heating unit（30）Including heating element
（31）, burner hearth（32）And insulating layer（33）；The burner hearth（32）It is arranged in the shell（10）Periphery, the heating element
（31）It is arranged in the burner hearth（32）And shell（10）Between, the insulating layer（33）It is coated on the burner hearth（32）Outside.
7. device for quickly elevating temperature according to claim 6, which is characterized in that the heating unit（30）Further include being enclosed in
The insulating layer（33）The furnace shell in outside（34）.
8. according to claim 1-7 any one of them device for quickly elevating temperature, which is characterized in that the device for quickly elevating temperature also wraps
It includes：
Temperature measurement component, respectively to metal tube in slow heat and rapid heating process（1）Carry out thermometric.
9. device for quickly elevating temperature according to claim 8, which is characterized in that the temperature measurement component includes at least one thermoelectricity
Thermo wires（41）And at least one infrared radiation thermometer（42）；
The thermocouple wire（41）Across the heating unit（30）And shell（10）Connect metal tube（1）Heating zone；It is described
Infrared radiation thermometer（42）With metal tube（1）Heating zone it is opposite and be arranged in the heating unit（30）Outside.
10. device for quickly elevating temperature according to claim 9, which is characterized in that the temperature measurement component includes two heat
Thermocouple wire（41）, it is separately connected metal tube（1）The both ends of heating zone；
The heating unit（30）It is equipped with window（35）To expose metal tube（1）Heating zone, the infrared radiation thermometer（42）
Pass through the window（35）To metal tube（1）Heating zone carry out thermometric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820649344.9U CN208060302U (en) | 2018-05-02 | 2018-05-02 | Device for quickly elevating temperature for metal tube explosion bulge test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820649344.9U CN208060302U (en) | 2018-05-02 | 2018-05-02 | Device for quickly elevating temperature for metal tube explosion bulge test |
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| Publication Number | Publication Date |
|---|---|
| CN208060302U true CN208060302U (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820649344.9U Active CN208060302U (en) | 2018-05-02 | 2018-05-02 | Device for quickly elevating temperature for metal tube explosion bulge test |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693046A (en) * | 2018-05-02 | 2018-10-23 | 中广核研究院有限公司 | Device for quickly elevating temperature for metal tube explosion bulge test and the method that is rapidly heated |
| CN114093540A (en) * | 2021-11-16 | 2022-02-25 | 西北核技术研究所 | Be used for damaged experimental apparatus of stainless steel cladding heating |
-
2018
- 2018-05-02 CN CN201820649344.9U patent/CN208060302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693046A (en) * | 2018-05-02 | 2018-10-23 | 中广核研究院有限公司 | Device for quickly elevating temperature for metal tube explosion bulge test and the method that is rapidly heated |
| CN114093540A (en) * | 2021-11-16 | 2022-02-25 | 西北核技术研究所 | Be used for damaged experimental apparatus of stainless steel cladding heating |
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