CN207231919U - A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded - Google Patents
A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded Download PDFInfo
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- CN207231919U CN207231919U CN201721312652.4U CN201721312652U CN207231919U CN 207231919 U CN207231919 U CN 207231919U CN 201721312652 U CN201721312652 U CN 201721312652U CN 207231919 U CN207231919 U CN 207231919U
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Abstract
The utility model is a kind of can be connected with the experimental system that the tubular specimen of supercritical water loaded to inside.The system includes three major parts：Pipe circuit, tubular specimen grasping system, tubular specimen loading system.The experimental system can be passed through the tubular specimen of high-temperature high pressure water to inside and load, and have Complex Flows liquid suitable for internal burn into stress corrosion, corrosion fatigue and the flowing of tubular specimen promote the testing research of corrosion etc. under by complex load coupling at the same time.The operating mode of hydraulic pipeline and heat-exchange tube in super (super-) critical thermal power station and Supercritical-Pressure Light Water Cooled Reactor can be simulated, dependence test, research and evaluation are carried out to the military service failure behaviour of pipe component under the operating mode.
Description
Technical field
The utility model belongs to the experiment dress of coolant environment in simulation Supercritical-Pressure Light Water Cooled Reactor and super (super-) critical thermal power station
Put field, be related to it is a kind of can internally be connected with the experimental rig that the tubular specimen of supercritical water is loaded, which is suitable for
The supercritical water of flowing is connected with to inside while bears the tubular specimen under complex load coupling and carries out the corruption of burn into stress
Erosion, corrosion fatigue and flowing promote the test and research of corrosion etc..
Background technology
Electric power is the important foundation for supporting the national economic development, and thermoelectricity and nuclear power are two kinds of important energy supply forms,
The challenge that power industry is faced with energy crisis at present and environmental pollution is brought is, it is necessary to develop more efficient, clean thermal power station
And nuclear reactor, super (super-) critical thermal power station and Supercritical-Pressure Light Water Cooled Reactor become main selection or developing direction.Super (super-) critical fire
Cooling agent in power station and Supercritical-Pressure Light Water Cooled Reactor is super (super-) critical steam, and temperature reaches 374 DEG C~650 DEG C, and temperature reaches
22MPa~35MPa, the material being on active service in this environment bear extreme environment power coupling effect caused by burn into stress corrosion,
Corrosion fatigue, especially creep equivalent damage form, pipe element, be jeopardize super (super-) critical thermoelectricity/nuclear power it is safe for operation with warp
One of major issue of Ji property.It is used for studying pipe component in super (super-) critical water and stress therefore, it is necessary to a kind of experimental rig
Military service Problem of Failure under coupling.
All it is to use standard specimen (pole currently for military service performance study of the material in high temperature and pressure steam environment
Sample, sheet specimens, compact tensile specimen etc.) carried out on autoclave or creep machine, this method cannot fully simulate pipe
The military service operating mode of sample, first, have ignored the form effect of pipe；Secondly, it have ignored the Service Environment of pipe (inside and outside pipe not
Same media environment), therefore, it is impossible to which the military service performance to pipe component makes accurate test and evaluation.So far, both at home and abroad
Also without a research equipment that can simulate pipe component military service operating mode in nuclear power station/thermal power station completely.Therefore, this practicality is new
For type patent using super (super-) critical thermal power station and Supercritical-Pressure Light Water Cooled Reactor as background, pipe military service operating mode can be simulated by devising one
Testing equipment, the internal pipeline military service operating mode for being connected with super (super-) critical water in power industry can be simulated completely using the equipment,
Carry out failure behaviour/mechanism study of the pipeline under this military service operating mode, scientific research level of the China in the field can be improved, be
The safe operation of China's power industry and economic benefit provide technical support.
Utility model content
The purpose of this utility model is to provide a kind of tubular specimen for the super (super-) critical steam that flowing is connected with to inside
The experimental system loaded.
A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded, it is characterised in that experiment system
System includes pipe circuit, tubular specimen grasping system, tubular specimen loading system, wherein, it is tubular specimen that pipe circuit, which is used for,
Inside is the high temperature and pressure steam environment that flowing is passed through inside developmental tube, and designs reduction pipe circuit by spiral tube structure and exist
Caused additional force on the tubular specimen of loading procedure；Tubular specimen grasping system is to set Inlet and outlet water to connect at sample collet
Mouthful, high-temperature high pressure water enters collet water inlet by pipe circuit, into tubular specimen inner side, is flowed out from collet water outlet,
Flowing high-temperature high pressure water is formed on the inside of tubular specimen, and high-temperature high pressure water vapour leakage protective case is designed with outside tubular specimen and is led
Pipe, high temperature and high pressure steam directly sprays after being ruptured to prevent tubular specimen；Tubular specimen loading system is by grasping system to pipe
Sample applies complex load, and tubular specimen is connected with collet, and external loading system can carry out quiet, dynamic mode to tubular specimen
Loading.
Further, the pipe circuit can be in tubular specimen loading procedure, be reduced or avoided due to displacement pair
The perturbed force that tubular specimen produces.
Further, the loading system carries out tubular specimen dead load, slow stretching and the loading of low cycle fatigue pattern, bag
Sine wave, triangular wave, trapezoidal wave, random wave and composite wave are included, for the pipe in the overcritical water vapour environment of respective flow
Road testpieces carries out aging, burn into stress corrosion, corrosion fatigue, corrosion creep and its coupling behavior and mechanism experiment.
Further, the tubular specimen grasping system is used to tubular specimen be connected to loading system and pipe circuit；
By the grasping system, the high temperature and pressure steam environment of flowing is passed through inside tubular specimen；Loading system applies tubular specimen
Carry out dead load, slow stretching and the loading of low cycle fatigue pattern；The grasping system, which can reduce pipe circuit, causes tubular specimen
Perturbed force.
Further, protective case and conduit, the high temperature leaked out after tubular specimen rupture are revealed by high temperature and pressure steam
High steam can drain into home.
The device is mainly used for：Lost with the military service of pipe element in super (super-) critical thermal power station and Supercritical-Pressure Light Water Cooled Reactor
The military service operating mode of pipe element in the environment can be simulated completely for background, the device by imitating, and flowing is passed through to tubular specimen inside
Super (super-) critical steam and apply complex load, the burn into for carrying out pipe element in super (super-) critical thermal power station/reactor should
The scientific research of the Problem of Failure such as the corrosion fatigue of power burn into, creep rupture.
Brief description of the drawings
Fig. 1 is the schematic diagram of the loading system for the tubular specimen that inside is connected with super (super-) critical water.
1：Connect loading device；
2：Lower collet；
3：Lower protective case
4：Tubular specimen (developmental tube)
5：Upper protective case
6：Upper grip
7：Water inlet
8：Water outlet
9：Collet water inlet connector
10：Collet water outlet connector
11：Helix tube
12：Pipe circuit system (band muff)
13：Supporting rack
14：Spring bracing
Embodiment
This experimental system is made of vapour circuit pipe-line system, tubular specimen grasping system, tubular specimen loading system etc.,
As shown in Figure 1.
Tubular specimen (developmental tube) is connected by modes such as welding with grasping system (upper and lower collet).In sample holder system
System sets the Inlet and outlet water mouth of pipe, is connected with vapour circuit pipe-line system；Bindiny mechanism is set to be connected with loading system；Steam is set to let out
Reveal protective case, directly eject and damage to prevent high temperature and high pressure steam, protective case is two sections nested type, respectively connection clip
Hold the upper and lower ends of system, can free to slide (frictional force should be measured, and be detained in loading force between two sections protective case
Except) but gap very little, protective case hypomere is designed with high temperature and pressure steam leakage diversion pipe.Loop conduit system is inside coupon
The high temperature and pressure steam of flowing is passed through, is designed with spiral tube loop, to ensure with loop pipe during tubular specimen stretching displacement
Road synchronously can be stretched freely, and the perturbed force produced to tubular specimen is in tolerance interval；Use spring supporting helix tube loop pipe
Road, and should have heating and attemperator along pipeline.Loading system can apply tubular specimen constant load, slow strain rate is drawn
Stretch the loading with low cycle fatigue (sine wave, triangular wave, trapezoidal wave, random wave, composite wave) isotype.
Can be the super (super-) critical water that flowing is passed through inside Piping specimen, together by the experimental system of the utility model
When apply complex load to tubular specimen, simulate the pipeline military service work in Supercritical-Pressure Light Water Cooled Reactor and super (super-) critical thermal power station completely
Condition, studies the failure mode and mechanism of pipeline material under the operating mode, predicts service life, faces for Supercritical-Pressure Light Water Cooled Reactor and super (super)
The safe operation of thermal power station of boundary provides technical support.
The above is only the utility model preferred embodiment.
It should be pointed out that for the member of ordinary skill of the art, the utility model technical principle is not being departed from
Under the premise of, some improvement and modification can also be made, these improvements and modifications should also be considered as the scope of protection of the utility model.
Claims (2)
- A kind of 1. experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded, it is characterised in that experimental system Including pipe circuit, tubular specimen grasping system, tubular specimen loading system, wherein, pipe circuit is used for as in tubular specimen The high temperature and pressure steam environment of flowing is passed through inside portion, that is, developmental tube, and reduction pipe circuit is designed by spiral tube structure and is being added Caused additional force on the tubular specimen of load process；Tubular specimen grasping system is the setting Inlet and outlet water interface at sample collet, High-temperature high pressure water enters collet water inlet by pipe circuit, into tubular specimen inner side, is flowed out from collet water outlet, in pipe Flowing high-temperature high pressure water is formed on the inside of sample, and high-temperature high pressure water vapour leakage protective case is designed with outside tubular specimen, to prevent pipe High temperature and high pressure steam directly sprays after sub- specimen broke；Tubular specimen loading system applies tubular specimen by grasping system multiple Miscellaneous load, tubular specimen are connected with sample collet, and external loading system can carry out quiet, dynamic mode to tubular specimen and add Carry.
- 2. the experimental system that the tubular specimen of supercritical water is loaded, its feature are connected with to inside as claimed in claim 1 It is, protective case is two sections nested type, connects the upper and lower ends of grasping system respectively, can between two sections protective case It is free to slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312652.4U CN207231919U (en) | 2017-10-12 | 2017-10-12 | A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312652.4U CN207231919U (en) | 2017-10-12 | 2017-10-12 | A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded |
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| Publication Number | Publication Date |
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| CN207231919U true CN207231919U (en) | 2018-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576576A (en) * | 2017-10-12 | 2018-01-12 | 北京科技大学 | A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded |
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2017
- 2017-10-12 CN CN201721312652.4U patent/CN207231919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576576A (en) * | 2017-10-12 | 2018-01-12 | 北京科技大学 | A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded |
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