CN106568887A - Experimental device for research on hydrogen combustion in nuclear power plant containment shell - Google Patents
Experimental device for research on hydrogen combustion in nuclear power plant containment shell Download PDFInfo
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- CN106568887A CN106568887A CN201610898495.3A CN201610898495A CN106568887A CN 106568887 A CN106568887 A CN 106568887A CN 201610898495 A CN201610898495 A CN 201610898495A CN 106568887 A CN106568887 A CN 106568887A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Abstract
The invention discloses an experimental device for research on hydrogen combustion in a nuclear power plant containment shell. The experimental device comprises a safety tank, an experimental pipe section, a gas supply system, an exhaust system, a heating and heat preservation system, a spray system, a data acquisition system, a control system, an igniter and a high-speed camera. The experimental pipe section is installed inside the safety tank. A barrier which is easy to replace is arranged inside the experimental pipe section. Through the gas supply system, hydrogen, the air and water vapor are uniformly mixed in advance; and then, the safety tank or the experimental pipe section is filled with the gas mixture for a combustion experiment. The exhaust system is used for discharging exhaust gas in the experimental device. The heating and heat preservation system can control initial gas temperature. The spray system provides a spray water environment for the experimental device. The data acquisition system acquires and processes a sensor signal to obtain experimental data. Through the control system, each subsystem and equipment of the experimental device are monitored and controlled. The experimental device of the invention has advantages of high safety and multiple experimental functions, etc., and can be used for research on combustion characteristics of hydrogen in the nuclear power plant containment shell.
Description
Technical field
The present invention relates in nuclear power plant containment shell hydric safe technical field, a kind of more particularly to research nuclear plant safety
The experimental provision of combustion of hydrogen in shell.
Background technology
Light-water reactor during major accident, due to the irradiation of zirconium-water reaction, water decompose and reactor core fused mass with it is mixed
The reaction of soil is coagulated, a large amount of hydrogen will be produced and mixed with air in containment, it is most likely that form flammable mixed gas,
Burning can be produced under the incendiary source of less energy or even is exploded, form larger pressure loading, the integrality to containment
Great threat is constituted, therefore radioactive fission product may be discharged in environment, cause serious harm.In the U.S. three in 1979
In the nuclear accident of island, the hydrogen that reactor core is produced burns in containment inner product coalescence, the equipment component damaged in containment, to safety
The integrality of shell constitutes directly threat.In Fukushima, Japan nuclear accident in 2011, a large amount of hydrogen are produced in containment, and in screen
Cover and serious hydrogen explosion is there occurs in factory building, demolished mill construction, the radioactive material confrontation peripheral region for leaking in a large number is made
Into severe contamination, again demonstrating hydrogen in the case of nuclear power plant accident and fire may cause major accident consequence.
Due in the case of major accident, the mixed gas of hydrogen being produced in containment.On the one hand, due in containment
Random incendiary source is inevitably present, such as electric spark, naked cable, localized hyperthermia etc. are likely to result in hydrogen self-ignition or quick-fried
It is fried；On the other hand, the hydrogen storage equipment that disappears, the active point in the range of certain density of hydrogen are made using hydrogen igniter in existing many containments
The hydrogen of accumulation, density of hydrogen is maintained at below flammable limit value in combustion containment, and this also relates to combustion of hydrogen in containment
Problem.Containment inner structure is complicated, containing large number quipments are installed in many compartments, and compartment, for combustion of hydrogen plays barrier
Hinder the effect of thing.When having barrier passage, barrier may have two aspect effects to flame：One is barrier to combustion flame
The blocking action for crossing large disturbances and barrier is inhibited to flame propagation；Two is that barrier can strengthen disturbance, burning
Coupling with turbulent flow can excite positive feedback mechanism again, cause flame speed constantly to rise, until finally firing transformation, pressure
Load is increased sharply, and equipment is caused to damage.Therefore, impact of the barrier to combustion of hydrogen characteristic is studied significant, can be with
By appropriate design barrier structure, reduce hydrogen and fire harm or even avoid hydrogen from firing.
Containment spray system is one of nuclear power station engineered safeguards features, and when nuclear power station occurs major accident, it can be with
The temperature and pressure of containment is reduced, to guarantee the integrality of containment.But due to shower water can be made in containment air
Water vapour is condensed into rapidly drop, has a significant impact to concentration of hydrogen in containment vessel distribution, and then can affect combustion of hydrogen characteristic.
Due to water recovery in containment, increase can density of hydrogen and oxygen concentration, may make on combustion of hydrogen temperature, pressure
Rise.Therefore, the important content that impact of the shower water to combustion of hydrogen characteristic is the research of nuclear power station hydric safe is studied.
Foreign countries are in the experimental provision for studying combustion of hydrogen, initial gas mixture to include hydrogen, air and water vapour
Experimental provision mainly have Germany THAI, HYKA-A2, BMC, DN-400 and PHDR experimental provision, Canadian LSVCTS realities
Experiment device, the HTCF experimental provisions in the U.S., the NUPEC experimental provisions of Japan, Muscovite RUT experimental provisions.But, above-mentioned reality
Great majority in experiment device are the impact for learning gas mixture original state to combustion of hydrogen characteristic, only BMC and DN-
Barrier is placed in 400 experimental provisions, only NUPEC experimental provisions are mounted with spray water system.The country grinds in combustion of hydrogen
Aspect starting is studied carefully than later, research work is concentrated mainly in combustion of hydrogen numerical simulation, and experimental provision is fewer, mostly not
For studying combustion of hydrogen in nuclear power plant containment shell, shadow of the two kinds of factors of barrier and spray to combustion of hydrogen characteristic is not accounted for
Ring, such as Chinese Academy of Sciences's mechanics has experimental provision and is mainly used in having barrier combustion of hydrogen in research semi open tube, China
Gongwu research institute sets up Detonation Tube experimental provision and have studied hydrogen and oxygen gas mixture blast critical condition, and Chinese science technology is big
Carried out hydrogen-air premixed flame Transmission dynamic experiment in square pipe, and experimental provision research T once built in Zhejiang University
Hydrogen air premixed combustion in type microtubule and in miniature de Laval noz(zle), Civil Aviation University of China has been carried out in obstructed tube
Premixed flame propagates the experimental study of Physical Mechanism.The correlation of combustion of hydrogen is real in the existing research nuclear power plant containment shell of comprehensive analysis
Experiment device, deficiency is：Experimental section is not provided with security protection knot using single pipe or single pressure vessel outside experimental section
Structure, security is than relatively low；Experiment segment structure is single, and without two kinds of factors of consideration barrier simultaneously and spray to combustion of hydrogen
The impact of characteristic, experiential function is fewer.
The content of the invention
The object of the invention is exactly to make up the defect of prior art, there is provided hydrogen combustion in one kind research nuclear power plant containment shell
The experimental provision of burning.
The present invention is achieved by the following technical solutions：
The experimental provision of combustion of hydrogen, includes safety can in a kind of research nuclear power plant containment shell, sets in described safety can
There is experiment pipeline section, in experiment pipeline section barrier is provided with, gas supply system, gas extraction system, heating guarantor are provided with the outside of safety can
Warm device, shower nozzle, data collecting system, control system, igniter and high-speed camera, described gas supply system is by hydrogen
Gas, air and water vapour are filled with experiment pipeline section and carry out combustion experiment after being pre-mixed uniformly, the waste gas in safety can is by described
Gas extraction system discharge, heating and heat-insulating device control initial gas temperature, shower nozzle be located at safety can top, there is provided spray water ring
Border, is provided with visor, the combustion of hydrogen flame that described high-speed camera is observed inside safety can by visor on safety can
Propagation condition, using data acquisition system data to obtain experimental data, by experimental data control system is sent to, and is passed through
Control system on-line monitoring, control heating and heat-insulating device, high-speed camera, igniter, gas supply system, gas extraction system and spray
The work of head.
Described safety can is Horizontal cylinder shape pressure vessel, and 0.9 meter of interior diameter is long 1.9 meters；Install one end of safety can
Pressure-relieving device one, described gas extraction system is arranged on the top of safety can, and automatic valve one and resistance are installed in gas extraction system
Firearm one, the bottom of safety can is provided with drainage pipeline, and drainage pipeline is provided with automatic valve two, and safety can is provided with pressure gauge
One, heating and heat-insulating device one is installed on the wall of safety can outside, safety can crown center position is provided with shower nozzle, the shower water of shower nozzle
Supply line is connected with water tank, and shower water pipeline is provided with automatic valve three, and the mobilization dynamic of shower water is provided by water pump, spray
The flow velocity of water is controlled by mass flow controller one, is also associated with purging the confession of feed channel, vacuum-pump line and gas on safety can
Pipeline, purging feed channel is answered to provide nitrogen by high-pressure nitrogen bottle, pressure-reducing valve one, mass flow controller is installed in purging feed channel
Two and automatic valve four, automatic valve five, vavuum pump and spark arrester two, gas supply pipe and gas are installed on vacuum-pump line
The gas pre-mixed tank connection of supply system, installs automatic valve six, the control of automatic valve seven, mass flow on gas supply pipe
Device three and heating and heat-insulating device two, install pressure sensor one, temperature sensor one and flame sensor one inside safety can,
It is respectively used to measure combustion of hydrogen pressure, temperature and flame propagation velocity.
Described experiment pipeline section interior diameter is 0.18 meter, long 1.62 meters, and experiment pipeline section two ends are provided with blind plate, blind by installing
Plate shape is closed or three kinds of structures of both ends open into closed at both ends, one end, when pipeline section is tested installed in safety can inside, can be in reality
Test in pipeline section and carry out higher hydrogen gas concentration, closing space, open space, have barrier, gas with various mixture initial properties etc.
Under the conditions of combustion of hydrogen experiment, when relatively low density of hydrogen, larger closing space being carried out in safety can, are had barrier, are had
When combustion of hydrogen under the conditions of shower water, gas with various mixture initial properties etc. is tested, peace is dismantled and removed to experiment pipeline section
Heating and heat-insulating device three is installed in full tank, experiment pipeline section wall outside, and experiment inner tube segment is provided with ignition location, pressure sensor
2nd, temperature sensor two and flame sensor two, igniter is lighted a fire at ignition location, for observation experiment inner tube segment flame
Burning behavior, experiment pipeline section is processed using transparent material, or experiment pipeline section installs observation towards on the wall of safety can visor
Window.
Described gas supply system provides the uniform mixed of designated gas concentration of component, initial temperature and pressure for safety can
Gas is closed, heating and heat-insulating device four is installed on gas pre-mixed tank wall face, gas pre-mixed tank is input into hydrogen inlet manifold road, air
Pipeline and water vapour input channel connect, and hydrogen is provided by High Pressure Hydrogen gas cylinder, and pressure-reducing valve two, quality is installed on hydrogen inlet manifold road
Flow controller four, spark arrester three, pneumatic operated valve eight, thermometer one, air is provided by high pressure air bottle, is pacified on air inlet duct road
Dress pressure-reducing valve three, electric heater, mass flow controller five, pneumatic operated valve nine, pipe tracing device five, thermometer two, water
Steam is provided by steam generator, and installation quality flow controller six, the heating of pneumatic operated valve ten, pipeline on water vapour input channel is protected
Warm device six, thermometer three, gas pre-mixed upper end is provided with pressure relief device two and discharge duct, sets on discharge duct automatically
Valve 11 and spark arrester four, gas pre-mixed pot bottom sets drainage pipeline, and drainage pipeline is provided with automatic valve 12, and gas is pre-
Pressure gauge two and gas concentration sensor are installed, gas pre-mixed tank and safety can share a vavuum pump on mixed tank cylinder wall,
Connecting pipe between gas pre-mixed tank and vavuum pump is provided with automatic valve 13, and gas pre-mixed tank and safety can share purging
Gas input, installs automatic valve 14 on the pipeline between gas pre-mixed tank and purge gass mass flow controller two.
Pressure sensor one, temperature sensor one and the flame sensor one installed on safety can, pacifies on experiment pipeline section
Gas concentration sensing is installed on the pressure sensor two of dress, temperature sensor two and flame sensor two, and gas pre-mixed tank
Device is all connected with data collecting system, Real-time Collection combustion of hydrogen pressure, temperature, flame, initial reaction gas concentration signal.
One end of safety can is provided with manhole, installation, maintenance and replacing can be carried out to safety can internal part by manhole, peace
The side of full tank is provided with safety can visor, and high-speed camera is by the combustion of hydrogen fire inside safety can visor observable safety can
Flame dissemination, the installation site for testing pipeline section deviates the cental axial position of safety can and away from safety can visor, increases high
The visual range of fast video camera, is easy to the combustion of hydrogen behavior of observation experiment inner tube segment.
It is an advantage of the invention that：1st, the present invention is arranged on experiment pipeline section in safety can, and safety can is pressure vessel, is had
Stronger bearing capacity, can provide security protection for experiment tube section, substantially increase experimenter and experimental section subsystem sets
Standby security.
2nd, the present invention has experiment two combustion containers of pipeline section and safety can, extends the function of experimental provision：Work as experiment
When pipeline section is arranged in safety can, closing space, open space can be carried out, have barrier, gas with various mixture primality
The higher combustion of hydrogen experiment of density of hydrogen under the conditions of matter etc.；After removing experiment pipeline section, safety can also be used as burning
Container carries out the combustion of hydrogen experiment of relatively low density of hydrogen, can carry out larger closing space, have barrier, has shower water, difference
Density of hydrogen under the conditions of admixture of gas initial properties etc. is tested than relatively low combustion of hydrogen.
Description of the drawings
Fig. 1 is the principle schematic diagram. of experiment device of the present invention.
Fig. 2 is the structural representation of experimental provision of the present invention.
Fig. 3 is that the right side of safe jar structure of the invention regards schematic diagram.
Fig. 4 is the schematic elevation view of safe jar structure of the invention.
Specific embodiment
As shown in figure 1, a kind of experimental provision for studying combustion of hydrogen in nuclear power plant containment shell, includes safety can 1, in institute
Experiment pipeline section 2 is provided with the safety can 1 stated, in experiment pipeline section 2 barrier 30 is provided with, in the outside of safety can 1 gas supply is provided with
System 31, gas extraction system 33, heating and heat-insulating device 17, shower nozzle 20, data collecting system 15, control system 32, the and of igniter 34
High-speed camera 16, described gas supply system 31 be by hydrogen, air and water vapour be pre-mixed it is uniform after be filled with experiment
Pipeline section 2 carries out combustion experiment, and the waste gas in safety can 1 is discharged by described gas extraction system 33, and heating and heat-insulating device 17 is controlled
Initial gas temperature, shower nozzle 20 is located at the top of safety can 1, there is provided spray water environment, and visor 29 is provided with safety can 1,
The combustion of hydrogen flame propagation situation that described high-speed camera 16 is observed inside safety can 1 by visor 29, is adopted using data
Experimental data is sent to control system 32 by the gathered data of collecting system 15 to obtain experimental data, online by control system 32
Monitoring, control heating and heat-insulating device 17, high-speed camera 16, igniter 34, gas supply system 31, gas extraction system 33 and shower nozzle
20 work.
Fig. 2 show experimental provision structural representation, and safety can 1 is Horizontal cylinder shape pressure vessel, 0.9 meter of interior diameter,
It is long 1.9 meters.The 24-1 of pressure-relieving device one is installed in one end of safety can 1, and top is provided with discharge duct, installs certainly on discharge duct
The 23-1 of the movable valve one and 25-1 of spark arrester one.The bottom of safety can 1 is provided with drainage pipeline, and drainage pipeline is provided with automatic valve two
23-2.Safety can 1 is provided with the 26-1 of pressure gauge one.The 17-1 of heating and heat-insulating device one is installed on the outside wall of safety can 1.Safety can
1 crown center position is provided with shower nozzle 20, and shower water supply line is connected with water tank 9, and shower water pipeline is provided with automatic valve three
23-3, the mobilization dynamic of shower water is provided by water pump 10, and the flow velocity of shower water is controlled by the 21-1 of mass flow controller one.Safety
Connection purging feed channel, vacuum-pump line and gas supply pipe on tank 1.Purge gass are provided by high-pressure nitrogen bottle 6, purge tracheae
The 22-1 of pressure-reducing valve one, the 21-2 of the mass flow controller two and 23-4 of automatic valve four are installed on road.Install certainly on vacuum-pump line
The 23-5 of movable valve five, vavuum pump 8 and the 25-2 of spark arrester two.Gas supply pipe connects with the gas pre-mixed tank 3 of gas supply system
Connect, the 23-6 of automatic valve six, the 23-7 of automatic valve seven, the 21-3 of mass flow controller three and heating and heat-insulating device are installed on pipeline
Two 17-2.The 11-1 of pressure sensor one, the 12-1 of the temperature sensor one and 13-1 of flame sensor one are installed inside safety can 1,
It is respectively used to measure combustion of hydrogen pressure, temperature and flame propagation velocity.One is placed in the outer cylinder centre position of safety can 1
High-speed camera 16, for catching combustion of hydrogen behavior.
Experiment pipeline section 2 interior diameter is 0.18 meter, long 1.62 meters.Experiment pipeline section 2 two ends are provided with blind plate, can form two end seals
Close, one end is closed, three kinds of structures of both ends open.When pipeline section 2 is tested installed in 1 inside of safety can, can open in experiment pipeline section 2
Exhibition higher hydrogen gas concentration, closing space, open space, there is hydrogen under the conditions of barrier, gas with various mixture initial properties etc.
Gas combustion experiment.When relatively low density of hydrogen, larger closing space being carried out in the safety can 1, are had barrier, are had shower water, no
When testing with the combustion of hydrogen under the conditions of admixture of gas initial properties etc., safety can 1 is dismantled and removed to experiment pipeline section 2.It is real
Test the wall of pipeline section 2 outside and the 17-3 of heating and heat-insulating device three is installed, inside experiment pipeline section 2 ignition location 19, pressure sensor is provided with
Two 11-2, the 12-2 of temperature sensor two and the 13-2 of flame sensor two, wherein ignition location 19 can change, and igniter 34 is in point
Light a fire at fiery position 19,.For the internal flame burning behavior of observation experiment pipeline section 2, experiment pipeline section 2 is processed using transparent material,
Or experiment pipeline section 2 installs observation window towards on the wall of safety can visor 29.
Gas supply system is that safety can 1 or experiment pipeline section 2 provide designated gas concentration of component, initial temperature and pressure
Uniform mixing gas mixture.Design by highest initial gas pressure 0.2MPa, the interior diameter of gas pre-mixed tank 3 takes 0.5 meter, high 1.2 meters.Gas
The 17-4 of heating and heat-insulating device four is installed in the outside wall surface of body premixing tank 3.Gas pre-mixed tank 3 and hydrogen inlet manifold road, air inlet duct
Road and water vapour input channel connect.Hydrogen is provided by High Pressure Hydrogen gas cylinder 4, on hydrogen inlet manifold road install the 22-2 of pressure-reducing valve two,
The 21-4 of mass flow controller four, the 25-3 of spark arrester three, the 23-8 of pneumatic operated valve eight, the 27-1 of thermometer one.Air is by high pressure air bottle 5
There is provided, the 22-3 of pressure-reducing valve three, electric heater 18, the 21-5 of mass flow controller five, pneumatic operated valve nine are installed on air inlet duct road
23-9, the 17-5 of pipe tracing device five, the 27-2 of thermometer two.Water vapour is provided by steam generator 7, water vapour input pipe
The 21-6 of installation quality flow controller six, the 23-10 of pneumatic operated valve ten, the 17-6 of pipe tracing device six, the 27- of thermometer three on road
3.The top of gas pre-mixed tank 3 is provided with the 24-2 of pressure relief device two and discharge duct, and the 23- of automatic valve 11 is set on discharge duct
11 and the 25-4 of spark arrester four, the bottom of gas pre-mixed tank 3 sets drainage pipeline, and drainage pipeline is provided with the 23-12 of automatic valve 12.Circle
The 26-2 of pressure gauge two and gas concentration sensor 14 are installed on tube wall surface.Gas pre-mixed tank 3 and safety can 1 share a vavuum pump
8, the connecting pipe between gas pre-mixed tank 3 and vavuum pump 8 is provided with the 23-13 of automatic valve 13.Gas pre-mixed tank 3 and safety
Tank 1 shares purge gass input, installs certainly on the pipeline between gas pre-mixed tank 3 and the 21-2 of purge gass mass flow controller two
The 23-14 of movable valve 14.
The 11-1 of pressure sensor one, the 12-1 of temperature sensor one that install on safety can 1 and the 13-1 of flame sensor one, it is real
The 11-2 of pressure sensor two, the 12-2 of temperature sensor two and the 13-2 of flame sensor two installed on pipeline section 2 is tested, and gas is pre-
On mixed tank 3 install gas concentration sensor 14 be all connected with data collecting system 15, Real-time Collection combustion of hydrogen pressure, temperature,
Flame, initial reaction gas concentration signal.
Fig. 3 show the right view of safety can 1, and one end of safety can 1 is provided with manhole 28, can be by manhole 28 to safety can
1 internal part carries out installation, maintenance and replacing.The side of safety can 1 is provided with safety can visor 29, and high-speed camera 16 is by peace
Combustion of hydrogen flame propagation behavior inside the full observable safety can 1 of tank visor 29.As shown in figure 4, the installation position of experiment pipeline section 2
Put the cental axial position of deviation safety can 1 and away from safety can visor 29, can so increase the visual of high-speed camera 16
Scope, the combustion of hydrogen behavior being easy to inside observation experiment pipeline section 2.
What the present invention was not elaborated partly belongs to techniques well known.
Although being described to illustrative specific embodiment of the invention above, in order to the technology people of this technology neck
Member understands the present invention, it should be apparent that the invention is not restricted to the scope of specific embodiment, the ordinary skill to the art
For personnel, as long as various change is in the spirit and scope of the present invention of appended claim restriction and determination, these changes
Change is it will be apparent that all utilize the innovation and creation of present inventive concept in the row of protection.
Claims (6)
1. it is a kind of research nuclear power plant containment shell in combustion of hydrogen experimental provision, it is characterised in that：Safety can is included, described
Safety can in be provided with experiment pipeline section, be provided with barrier in experiment pipeline section, gas supply system, exhaust are provided with the outside of safety can
System, heating and heat-insulating device, shower nozzle, data collecting system, control system, igniter and high-speed camera, described gas is supplied
Answer system be by hydrogen, air and water vapour be pre-mixed it is uniform after be filled with experiment pipeline section and carry out combustion experiment, in safety can
Waste gas is discharged by described gas extraction system, and heating and heat-insulating device control initial gas temperature, shower nozzle is located at the top of safety can,
Spray water environment is provided, visor is installed on safety can, described high-speed camera is observed inside safety can by visor
Combustion of hydrogen flame propagation situation, using data acquisition system data to obtain experimental data, experimental data is sent to
Control system, by control system on-line monitoring, control heating and heat-insulating device, high-speed camera, igniter, gas supply system
The work of system, gas extraction system and shower nozzle.
2. it is according to claim 1 it is a kind of research nuclear power plant containment shell in combustion of hydrogen experimental provision, it is characterised in that：
Described safety can is Horizontal cylinder shape pressure vessel, and 0.9 meter of interior diameter is long 1.9 meters；One end of safety can is installed by pressure releasing
Device one, described gas extraction system is arranged on the top of safety can, and automatic valve one and spark arrester one, peace are installed in gas extraction system
The bottom of full tank is provided with drainage pipeline, and drainage pipeline is provided with automatic valve two, and safety can is provided with pressure gauge one, outside safety can
Heating and heat-insulating device one is installed, safety can crown center position is provided with shower nozzle on portion's wall, the shower water supply line of shower nozzle with
Water tank connects, and shower water pipeline is provided with automatic valve three, and the mobilization dynamic of shower water is provided by water pump, the flow velocity of shower water by
Mass flow controller one is controlled, and is also associated with purging feed channel, vacuum-pump line and gas supply pipe, purging on safety can
Feed channel provides nitrogen by high-pressure nitrogen bottle, and in purging feed channel pressure-reducing valve one, mass flow controller two and automatic valve are installed
Men Si, installs automatic valve five, vavuum pump and spark arrester two, gas supply pipe and gas supply system on vacuum-pump line
Gas pre-mixed tank connection, installs automatic valve six, automatic valve seven, mass flow controller three and heating on gas supply pipe
Attemperator two, installs pressure sensor one, temperature sensor one and flame sensor one inside safety can, is respectively used to survey
Amount combustion of hydrogen pressure, temperature and flame propagation velocity.
3. it is according to claim 2 it is a kind of research nuclear power plant containment shell in combustion of hydrogen experimental provision, it is characterised in that：
Described experiment pipeline section interior diameter is 0.18 meter, long 1.62 meters, and experiment pipeline section two ends are provided with blind plate, and by installing blind plate two are formed
End seal is closed, one end is closed or three kinds of structures of both ends open, when pipeline section is tested installed in safety can inside, can be in experiment pipeline section
Carry out higher hydrogen gas concentration, closing space, open space, have under the conditions of barrier, gas with various mixture initial properties etc.
Combustion of hydrogen is tested, when relatively low density of hydrogen, larger closing space being carried out in safety can, had barrier, had shower water, no
When testing with the combustion of hydrogen under the conditions of admixture of gas initial properties etc., safety can is dismantled and removed to experiment pipeline section, test
Heating and heat-insulating device three is installed in pipeline section wall outside, and experiment inner tube segment is provided with ignition location, pressure sensor two, TEMP
Device two and flame sensor two, igniter is lighted a fire at ignition location, real for observation experiment inner tube segment flame combustion behavior
Test pipeline section to process using transparent material, or experiment pipeline section installs observation window towards on the wall of safety can visor.
4. it is according to claim 3 it is a kind of research nuclear power plant containment shell in combustion of hydrogen experimental provision, it is characterised in that：
Described gas supply system provides the uniform mixing gas mixture of designated gas concentration of component, initial temperature and pressure for safety can,
Heating and heat-insulating device four is installed on gas pre-mixed tank wall face, gas pre-mixed tank and hydrogen inlet manifold road, air inlet duct road and
Water vapour input channel connects, and hydrogen is provided by High Pressure Hydrogen gas cylinder, and pressure-reducing valve two, mass flow control are installed on hydrogen inlet manifold road
Device processed four, spark arrester three, pneumatic operated valve eight, thermometer one, air is provided by high pressure air bottle, and decompression is installed on air inlet duct road
Valve three, electric heater, mass flow controller five, pneumatic operated valve nine, pipe tracing device five, thermometer two, water vapour by
Steam generator is provided, installation quality flow controller six, pneumatic operated valve ten, pipe tracing device on water vapour input channel
6th, thermometer three, gas pre-mixed upper end is provided with pressure relief device two and discharge duct, and automatic valve ten is set on discharge duct
One and spark arrester four, gas pre-mixed pot bottom sets drainage pipeline, and drainage pipeline is provided with automatic valve 12, gas pre-mixed tank circle
Pressure gauge two and gas concentration sensor are installed, gas pre-mixed tank and safety can share a vavuum pump, and gas is pre- on tube wall surface
Connecting pipe between mixed tank and vavuum pump is provided with automatic valve 13, and gas pre-mixed tank and safety can share purge gass input
End, installs automatic valve 14 on the pipeline between gas pre-mixed tank and purge gass mass flow controller two.
5. it is according to claim 4 it is a kind of research nuclear power plant containment shell in combustion of hydrogen experimental provision, it is characterised in that：
Pressure sensor one, temperature sensor one and the flame sensor one installed on safety can, tests the pressure installed on pipeline section
On sensor two, temperature sensor two and flame sensor two, and gas pre-mixed tank install gas concentration sensor all with number
Connect according to acquisition system, Real-time Collection combustion of hydrogen pressure, temperature, flame, initial reaction gas concentration signal.
6. it is according to claim 5 it is a kind of research nuclear power plant containment shell in combustion of hydrogen experimental provision, it is characterised in that：
One end of safety can is provided with manhole, installation, maintenance and replacing, the side of safety can be carried out to safety can internal part by manhole
Face is provided with safety can visor, and high-speed camera is by the combustion of hydrogen flame propagation row inside safety can visor observable safety can
For the installation site for testing pipeline section deviates the cental axial position of safety can and away from safety can visor, increases high-speed camera
Visual range, be easy to the combustion of hydrogen behavior of observation experiment inner tube segment.
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