CN107271190A - It is a kind of to monitor the constant volume detonation corrosion chamber and method of detonation wave fluctuation behavior - Google Patents
It is a kind of to monitor the constant volume detonation corrosion chamber and method of detonation wave fluctuation behavior Download PDFInfo
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- CN107271190A CN107271190A CN201710675393.XA CN201710675393A CN107271190A CN 107271190 A CN107271190 A CN 107271190A CN 201710675393 A CN201710675393 A CN 201710675393A CN 107271190 A CN107271190 A CN 107271190A
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- 238000005474 detonation Methods 0.000 title claims abstract description 84
- 230000007797 corrosion Effects 0.000 title claims abstract description 13
- 238000005260 corrosion Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 46
- 238000002485 combustion reaction Methods 0.000 claims abstract description 40
- 239000001301 oxygen Substances 0.000 claims abstract description 30
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 30
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 24
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 24
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004458 analytical method Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 21
- 229910001882 dioxygen Inorganic materials 0.000 claims description 8
- 239000008246 gaseous mixture Substances 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims 1
- 230000003542 behavioural effect Effects 0.000 abstract description 8
- 238000011160 research Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention relates to constant volume combustion bomb, and in particular to a kind of to monitor the constant volume detonation corrosion chamber and method of detonation wave fluctuation behavior.The device includes：Constant volume detonation firebomb body；Gas handling system, high-energy ignition system, data acquisition and analysis system, the beneficial effects of the invention are as follows：When the constant volume detonation firebomb system of the present invention is applied to research engine super detonation during behavioral trait of the detonation wave in combustion chamber, it can be stablized using high energy ignition unit and acetylene/oxygen mixture and produce detonation wave.
Description
Technical field：
The present invention relates to constant volume combustion bomb, and in particular to a kind of to monitor the constant volume detonation burning of detonation wave fluctuation behavior
Experimental rig and method.
Background technology：
The requirement of energy-saving and emission-reduction is increasingly strict, and internal combustion engine is used as main power source, its fuel economy and environmental-protecting performance
Improved constantly.Direct-injection supercharging miniaturization be spark ignition engine disclosure satisfy that discharge and fuel consumption requirement it is important
Approach.However, being improved constantly with the compression ratio and power density of engine, strong pinking is occurred in that.Once super detonation is sent out
Raw, its pressure oscillation amplitude is up to even more than 30MPa, and frequency of oscillation will also exceed 10kHz.This strong pinking will easily
Cause the destruction of the combustion-chamber assemblies such as spark plug and piston so that engine can not continuous firing.But piston material destruction is needed
It is up to the active force of up to a hundred MPas of pressure, at most just tens MPas of the pressure oscillation observed under strong pinking, then piston
How material is by the not yet final conclusion of strong pinking damage inactivation actually.
The cylinder pressure sensor of real engine is arranged on the effect of being under pressure on cylinder cap position, piston and can not obtained, and often
Cylinder pressure sensor measurement range is 30MPa to the maximum, and resonant frequency is less than pressure when 200kHz can not meet strong pinking
Measurement request.Meanwhile, on engine pedestal test, strong pinking can not stablize produce, and can not high-speed motion work
Multiple pressure sensors are inserted beyond the Great Wall to monitor the behavioral trait of detonation wave and convergence characteristic in combustion chamber.
The content of the invention：
The present invention is detonated by devising a set of constant volume detonation firebomb experimental rig by high-energy sparking plug direct-fire
Mode, by force in a combustion chamber between induce one of detonation wave, then the trajectory pressure sensing by being arranged at diverse location
Device, rather than traditional cylinder pressure sensor detect behavioral trait and convergence characteristic of the detonation wave in given shape combustion chamber.
Concrete technical scheme is as follows：
A kind of to monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, the device includes：Constant volume detonation
Firebomb body；Gas handling system, for being filled with combustion mixture to the quantitative stationary state of appearance bullet, from acetylene/oxygen or hydrogen/oxygen
Gas is used as gaseous mixture；High-energy ignition system, including two parts, are control cabinet manual firing system and high-energy sparking plug respectively；Number
According to acquisition analysis system, including：4 PCB 119B11 pressure sensors, 4 PCB 402A03 signal amplifiers, 1 PCB
482C05 signals debugging instrument and 1 oscillograph of DLM 2000,4 PCB 119B11 pressure sensors are positioned in combustion chamber
On interior four diverse locations, one is placed on cylinder cap, and the other three is placed on piston face, and particular location is respectively piston
At center, piston diameter 1/4 and edge.
A kind of method that can monitor detonation wave fluctuation behavior realized on above-mentioned constant volume detonation corrosion chamber, mistake
Journey is as follows：
Step one：Constant volume detonation firebomb body, including cylinder cap, piston and cylinder sleeve are installed, bolt is tight with torque spanner
Gu；
Step 2：Pressure sensor, spark plug and air intake valve 11 are arranged on constant volume detonation firebomb body；Connection
Data acquisition and analysis system, high-energy ignition system and gas handling system；
Step 3：Pretest inspection constant volume detonation firebomb air-tightness；Air intake valve 11 is opened, by oxygen hose by inserting soon
Joint 16 accesses air intake valve, adjusts intratracheal pressure to 5bar using the pressure reducer on oxygen cylinder, closes air intake valve 11, closes
The pressure reducer held one's breath on bottle, disconnects oxygen path；The tracheae that the other end is closed accesses quick plug 16, the intelligent single loop of observation
Whether measurement and control instrument registration increases, if measurement and control instrument registration is zero not increase, illustrates that the sealing of air valve 11 is intact；Air valve 11 is opened,
Whether the intelligent single loop measurement and control instrument registration of observation keeps definite value constant, if registration is constant, mounted body air-tightness is good
It is good；
Step 4：Gas washing, discharges the air in combustion chamber, full of oxygen；Oxygen hose is accessed by quick connector 16
Air inlet gas circuit, closes pressure relief ball valve 15 and air intake valve 11；Intratracheal pressure is adjusted to 3bar using the pressure reducer on oxygen cylinder,
Air intake valve 11 is opened, enters gas, when intelligent single loop measurement and control instrument shows that pressure registration is constant, air intake valve is closed
11, the pressure reducer closed on gas cylinder；Pressure relief ball valve 15 is opened, oxygen path is disconnected, air intake valve 11 is opened, gas is discharged；
So in triplicate, gas washing is completed；
Step 5：The pressure of the pure oxygen and acetylene needed for experiment is calculated using partial pressure method；Close pressure relief ball valve 15 and air inlet
Valve 11, is accessed air intake valve by quick connector 16 by acetylene hose, is adjusted admission pressure using the pressure reducer on acetylene gas bottle
The whole numerical value to needs；Open air intake valve 11, acetylene is filled with combustion chamber, when the registration on measurement and control instrument is constant, close into
Air valve 11, closes acetylene regulator, opens pressure relief ball valve 15, disconnects acetylene gas circuit；
Step 6：Oxygen hose is accessed into gas circuit by quick connector 16, pressure relief ball valve 15 is closed, using on oxygen gas cylinder
The numerical value that admission pressure is adjusted to need by pressure reducer；Open air intake valve 11, when the registration on measurement and control instrument is constant, close into
Air valve 11, closes pressure reducer, opens pressure relief ball valve 15, disconnects oxygen gas circuit；
Step 7：Setting oscillograph is triggering state；
Step 8：Trigger and mixed in the switch on high-energy ignition system control cabinet, high-energy sparking plug electric discharge, combustion chamber manually
The direct detonation of gas；
Step 9：The waveform collected on observation oscilloscope window, is confirmed whether occur detonation, preserves data and is set to storage
It is standby；
Step 10：Continuous five repeat steps three arrive step 9, confirm the repeatability of data collected；
Step 11：Experimental data is analyzed, the pressure oscillation curve of diverse location in combustion chamber is obtained, research detonation wave
Behavioral trait.
One of preferably, the combustion chamber cylinder diameter of the constant volume detonation firebomb body is 75~85mm, and cone angle is
120 °~180 °, cylinder cap shape and piston-shaped all variable, combustion chamber clearance is adjusted with cylinder sleeve, variable from 0~32mm.As excellent
The further preferred scheme of one of scheme is selected, the material of the constant volume detonation firebomb body is stainless steel 1Cr18Ni9Ti.
Preferably two, in the gas handling system, gas component and equivalent proportion are controlled by partial pressure.As excellent
Selecting has air admission hole, 1~3mm of air admission hole aperture, air inlet on two further preferred scheme of scheme, constant volume detonation firebomb body
Valve uses internal thread needle-like stop valve J13W-350P DN6, and outside determines the partial pressure of gaseous mixture each component using pressure transmitter.
Preferably three, the control cabinet manual firing system output voltage is 2500V, and ignition energy is more than
10J。
Preferably four, the resonant frequency of the sensor of the data acquisition and analysis system is higher than 400kHz, on
The time of liter is less than 2 μ s, and the DLM2000 oscillographs of the data acquisition and analysis system are used for four groups of pressure signals synchronously and adopted simultaneously
Collection, its frequency acquisition is 625MHz.
The beneficial effects of the invention are as follows：
(1) super detonation has sporadic and randomness, and destructive power is very big.This causes in engine bed
Experiment is done on frame relatively difficult.Detonation wave when the constant volume detonation firebomb system of the present invention is applied to research engine super detonation
During behavioral trait in combustion chamber, it can be stablized using high energy ignition unit and acetylene/oxygen mixture and produce detonation wave.
(2) on engine pedestal, it is impossible to insert multiple pressure sensors on the piston of high-speed motion to monitor burning
The behavioral trait of detonation wave and convergence characteristic in room.The constant volume detonation firebomb system of the present invention can be in piston and cylinder cap not
The pressure sensor of delicate level response, to find during super detonation, the position that detonation wave is converged in combustion chamber are installed with position.
(3) relative to optical engine and rcm is used, constant volume detonation firebomb of the invention is simple in construction,
Cost is low.The constant volume combustion bomb of glass window is provided with, due to the limitation of strength of glass, it is impossible to realize strong detonation, of the invention determines
Strong detonation can be realized by holding detonation combustion bullet.
(4) constant volume detonation firebomb system of the invention can be by changing the shape of cylinder cap and piston, to simulate difference
The combustion chamber of shape.By changing the length of cylinder sleeve, to simulate piston in the combustion chamber of diverse location.
Brief description of the drawings：
Fig. 1 is the schematic diagram of constant volume detonation firebomb of the present invention；1 represents combustion chamber, and 2 represent piston centre sensor, 3 generations
The position sensor of table piston diameter 1/4,4 represent piston ridge sensor, and 5 represent sensor at cylinder cap, and 6 represent high-energy spark
Plug, 7 represent air admission hole, and 8 represent cylinder sleeve, and 9 represent body support, and 10 represent high-strength bolt.
Fig. 2 is the schematic diagram of constant volume detonation firebomb intake and exhaust gas circuit of the present invention；11 represent air intake valve, 12 representative pressures
Transmitter, 13 represent threeway one, and 14 represent threeway two, and 15 represent pressure relief ball valve, and 16 represent snap joint.
Embodiment：
Embodiment：
The present invention is described in further detail below by specific embodiment, embodiment in detail below is only to this hair
It is bright to be explained, and the invention is not limited in any way.
The constant volume detonation firebomb system of the present invention includes：Constant volume detonation firebomb body, gas handling system, high-energy ignition system
System and data acquisition and analysis system.Concrete composition part is described below：
The constant volume detonation firebomb body, its combustion chamber cylinder diameter is 75~85mm, and cone angle is 120 °~180 °, left and right two
Side is respectively cylinder cap and piston, and the shape of cylinder cap and piston is all variable；Combustion chamber clearance cylinder sleeve 8 is adjusted, can from 0mm~32mm
Become；Airframe material is stainless steel 1Cr18Ni9Ti, can bear the pressure of some strength；Cylinder cap center 6 is installed by spark plug, cylinder
One pressure sensor of installation is covered, this installation site 5 and the installation site of cylinder pressure sensor in internal combustion engine are essentially identical；Piston
In center 2, diameter a quarter position 3 and marginal position 4 are respectively mounted pressure sensor；Air inlet is have also been devised on piston
Hole 7；Whole body is fastened by 12 uniform M12 high-strength bolts 10.
The gas handling system, it is quick-fried in order to be able to stablize, be readily incorporated into for bullet is held, quantitatively stationary state to be filled with combustion mixture
Hong ripple, the present embodiment is used as gaseous mixture from acetylene/oxygen；Component and equivalent proportion are then controlled by partial pressure；Hold entering on bullet
Air vent aperture is 1~3mm, and intake valve 11 is using internal thread needle-like stop valve J13W-350P DN6；Outside uses pressure transmitter
12 determine the partial pressure of gaseous mixture each component, and pressure registration is shown by intelligent single loop measurement and control instrument.
The high-energy ignition system, including two parts are constituted, and are control cabinet and high-energy sparking plug respectively.Pass through control cabinet people
Work is lighted a fire, and ignition system output voltage is 2500V, and ignition energy is more than 10J, it is sufficient to directly put the flammable mixing of quick-fried acetylene/oxygen
Gas.
The data acquisition and analysis system, is put by four PCB 119B11 pressure sensors, four PCB 402A03 signals
Big device, a PCB 482C05 signals debugging instrument and an oscillograph of DLM 2000 are constituted.Wherein four PCB 119B11 pressure
Sensor is positioned in combustion chamber on four diverse locations.One is placed on cylinder cap, herein in installation site and internal combustion engine
The installation site of cylinder pressure sensor is essentially identical.The other three is placed on piston face, and particular location is respectively piston centre
At place, piston diameter 1/4 and edge；The resonant frequency of sensor is higher than 400kHz, and the rise time is less than 2 μ s.DLM 2000
Oscillograph is used for four groups of pressure signals synchronously and gathered simultaneously, and its frequency acquisition is up to 625MHz；The sets of data collection analysis system
System is enough to catch the behavioral trait of detonation wave.
The method and step tested using the detonation appearance bullet system of the present invention is as follows：
Step one：Constant volume detonation firebomb body, including cylinder cap, piston and cylinder sleeve are installed, bolt is tight with torque spanner
Gu；
Step 2：Pressure sensor, spark plug and air intake valve 11 are arranged on body.Connect data collection and analysis system
System, high-energy ignition system and gas handling system；
Step 3：For complete, the pretest inspection constant volume detonation firebomb air-tightness of guarantee test personnel.Open air inlet
Valve 11, air intake valve is accessed by oxygen hose by quick connector 16, and intratracheal pressure is adjusted using the pressure reducer on oxygen cylinder
To 5bar, air intake valve 11 is closed, the pressure reducer closed on gas cylinder disconnects oxygen path；The tracheae access that the other end is closed
Whether quick plug 16, the intelligent single loop measurement and control instrument registration of observation increases, if measurement and control instrument registration is zero not increase, illustrates air valve
11 sealings are intact；Air valve 11 is opened, whether observation measurement and control instrument registration keeps definite value constant, if registration is constant, install
Body air-tightness it is good；
Step 4：Gas washing, discharges the air in combustion chamber, full of oxygen.Oxygen hose is accessed by quick connector 16
Air inlet gas circuit, closes pressure relief ball valve 15 and air intake valve 11；Intratracheal pressure is adjusted to 3bar using the pressure reducer on oxygen cylinder,
Air intake valve 11 is opened, enters gas, when intelligent single loop measurement and control instrument shows that pressure registration is constant, air intake valve is closed
11, the pressure reducer closed on gas cylinder；Pressure relief ball valve 15 is opened, oxygen path is disconnected, air intake valve 11 is opened, gas is discharged；
So in triplicate, gas washing is completed；
Step 5：The pressure of the pure oxygen and acetylene needed for experiment is calculated using partial pressure method.Close pressure relief ball valve 15 and air inlet
Valve 11, is accessed air intake valve by quick connector 16 by acetylene hose, is adjusted admission pressure using the pressure reducer on acetylene gas bottle
The whole numerical value to needs.Open air intake valve 11, acetylene is filled with combustion chamber, when the registration on measurement and control instrument is constant, close into
Air valve 11, closes acetylene regulator, opens pressure relief ball valve 15, disconnects acetylene gas circuit；
Step 6：Oxygen hose is accessed into gas circuit by quick connector 16, pressure relief ball valve 15 is closed, using on oxygen gas cylinder
The numerical value that admission pressure is adjusted to need by pressure reducer；Open air intake valve 11, when the registration on measurement and control instrument is constant, close into
Air valve 11, closes pressure reducer, opens pressure relief ball valve 15, disconnects oxygen gas circuit；
Step 7：Setting oscillograph is triggering state；
Step 8：Trigger and mixed in the switch on high-energy ignition system control cabinet, high-energy sparking plug electric discharge, combustion chamber manually
The direct detonation of gas；
Step 9：The waveform collected on observation oscilloscope window, is confirmed whether occur detonation, preserves data and is set to storage
It is standby；
Step 10：Repeat step three arrives step 9 five times, confirms the repeatability of data collected.
Step 11：Experimental data is analyzed, the pressure oscillation curve of diverse location in combustion chamber is obtained, research detonation wave
Behavioral trait.
The invention of this reality is not limited to embodiment described above.The description to embodiment is intended to above
In order to describe and illustrate technical scheme, without restricted.One of ordinary skill in the art opens the present invention's
Under showing, without deviating from the spirit of the invention, many variations can also be made, these belong to the present invention protection it
It is interior.
Claims (8)
1. a kind of can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is characterised in that the device includes：
Constant volume detonation firebomb body；
Gas handling system, for being filled with combustion mixture to the quantitative stationary state of appearance bullet, from acetylene/oxygen or hydrogen/oxygen conduct
Gaseous mixture；
High-energy ignition system, including two parts, are control cabinet manual firing system and high-energy sparking plug respectively；
Data acquisition and analysis system, including：4 PCB 119B11 pressure sensors, 4 PCB 402A03 signal amplifiers, 1
PCB 482C05 signals debugging instruments and 1 DLM2000 oscillograph；4 PCB 119B11 pressure sensors are positioned in combustion
Burn on indoor four diverse locations, one is placed on cylinder cap, and the other three is placed on piston face, and particular location is respectively
At piston centre, at piston diameter 1/4 and edge.
2. a kind of according to claim 1 can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is special
Levy and be, the combustion chamber cylinder diameter of the constant volume detonation firebomb body is 75~85mm, and cone angle is 120 °~180 °, cylinder cap shape
With it is piston-shaped all variable, combustion chamber clearance is adjusted with cylinder sleeve, variable from 0~32mm.
3. a kind of according to claim 2 can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is special
Levy and be, the material of the constant volume detonation firebomb body is stainless steel 1Cr18Ni9Ti.
4. a kind of according to claim 1 can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is special
Levy and be, in the gas handling system, gas component and equivalent proportion are controlled by partial pressure.
5. a kind of according to claim 4 can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is special
Levy and be, there is air admission hole on constant volume detonation firebomb body, 1~3mm of air admission hole aperture, intake valve is ended using internal thread needle-like
Valve J13W-350P DN6, outside determines the partial pressure of gaseous mixture each component using pressure transmitter.
6. a kind of according to claim 1 can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is special
Levy and be, the control cabinet manual firing system output voltage is 2500V, ignition energy is more than 10J.
7. a kind of according to claim 1 can monitor the constant volume detonation corrosion chamber that detonation wave fluctuates behavior, it is special
Levy and be, the resonant frequency of the sensor of the data acquisition and analysis system is higher than 400kHz, the rise time is less than 2 μ s, described
The oscillographs of DLM 2000 of data acquisition and analysis system are used for four groups of pressure signals synchronously and gathered simultaneously, and its frequency acquisition is
625MHz。
8. fluctuate behavior in a kind of detonation wave that can monitor realized described in claim 1 on constant volume detonation corrosion chamber
Method, it is characterised in that process is as follows：
Step one：Constant volume detonation firebomb body, including cylinder cap, piston and cylinder sleeve are installed, bolt is fastened with torque spanner；
Step 2：Pressure sensor, spark plug and air intake valve (11) are arranged on constant volume detonation firebomb body；Connect number
According to acquisition analysis system, high-energy ignition system and air inlet system and exhaust system；
Step 3：Pretest inspection constant volume detonation firebomb air-tightness；Air intake valve (11) is opened, oxygen hose is passed through into fast grafting
Head (16) access air intake valve, adjusts intratracheal pressure to 5bar using the pressure reducer on oxygen cylinder, closes air intake valve (11),
The pressure reducer closed on gas cylinder, disconnects oxygen path；The tracheae that the other end is closed accesses quick plug 16, single time of observation intelligence
Whether road measurement and control instrument registration increases, if measurement and control instrument registration is zero not increase, illustrates that intake valve (11) sealing is intact；Open gas
Whether valve (11), the intelligent single loop measurement and control instrument registration of observation keeps definite value constant, if registration is constant, mounted body gas
Close property is good；
Step 4：Gas washing, discharges the air in combustion chamber, full of oxygen；By oxygen hose by quick connector (16) access into
Gas gas circuit, closes pressure relief ball valve (15) and air intake valve (11)；Arrived using the pressure reducer regulation intratracheal pressure on oxygen cylinder
3bar, open air intake valve (11), enter gas, when intelligent single loop measurement and control instrument show pressure registration it is constant when, close into
Air valve (11), the pressure reducer closed on gas cylinder；Pressure relief ball valve (15) is opened, oxygen path is disconnected, air intake valve (11) is opened,
Gas is discharged；So in triplicate, gas washing is completed；
Step 5：The pressure of the pure oxygen and acetylene needed for experiment is calculated using partial pressure method；Close pressure relief ball valve (15) and intake valve
Door (11), accesses air intake valve, using the pressure reducer on acetylene gas bottle by admission pressure by acetylene hose by quick connector (16)
It is adjusted to the numerical value needed；Air intake valve (11) is opened, acetylene is filled with combustion chamber, when the registration on measurement and control instrument is constant, is closed
Intake valve (11) is closed, acetylene regulator is closed, pressure relief ball valve 15 is opened, acetylene gas circuit is disconnected；
Step 6：Oxygen hose is accessed into gas circuit by quick connector (16), pressure relief ball valve (15) is closed, using on oxygen gas cylinder
The numerical value that admission pressure is adjusted to need by pressure reducer；Air intake valve (11) is opened, when the registration on measurement and control instrument is constant, is closed
Intake valve (11), closes pressure reducer, opens pressure relief ball valve (15), disconnects oxygen gas circuit；
Step 7：Setting oscillograph is triggering state；
Step 8：It is straight that gaseous mixture in the switch on high-energy ignition system control cabinet, high-energy sparking plug electric discharge, combustion chamber is triggered manually
Connect detonation；
Step 9：The waveform collected on observation oscilloscope window, is confirmed whether occur detonation, preserves data to storage device；
Step 10：Continuous five repeat steps three arrive step 9, confirm the repeatability of data collected；
Step 11：Experimental data is analyzed, the pressure oscillation curve of diverse location in combustion chamber is obtained, the behavior of detonation wave is studied
Characteristic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710675393.XA CN107271190A (en) | 2017-08-09 | 2017-08-09 | It is a kind of to monitor the constant volume detonation corrosion chamber and method of detonation wave fluctuation behavior |
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| CN201710675393.XA CN107271190A (en) | 2017-08-09 | 2017-08-09 | It is a kind of to monitor the constant volume detonation corrosion chamber and method of detonation wave fluctuation behavior |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942029A (en) * | 2017-11-14 | 2018-04-20 | 北京科技大学 | A kind of fast and effective direct initiation detonation pipeline group and experimental method |
| CN111707757A (en) * | 2020-06-29 | 2020-09-25 | 杭州柯林电气股份有限公司 | Transformer oil online chromatographic analysis method based on FID |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796628A (en) * | 2017-07-28 | 2018-03-13 | 天津大学 | A kind of constant volume detonation corrosion chamber and method that can monitor detonation wave fluctuation behavior |
-
2017
- 2017-08-09 CN CN201710675393.XA patent/CN107271190A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796628A (en) * | 2017-07-28 | 2018-03-13 | 天津大学 | A kind of constant volume detonation corrosion chamber and method that can monitor detonation wave fluctuation behavior |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942029A (en) * | 2017-11-14 | 2018-04-20 | 北京科技大学 | A kind of fast and effective direct initiation detonation pipeline group and experimental method |
| CN107942029B (en) * | 2017-11-14 | 2020-08-11 | 北京科技大学 | Rapid and effective direct detonation pipeline set and experimental method |
| CN111707757A (en) * | 2020-06-29 | 2020-09-25 | 杭州柯林电气股份有限公司 | Transformer oil online chromatographic analysis method based on FID |
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Application publication date: 20171020 |
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