CN106679500A - Two-stage light gas gun driven through hydrogen energy - Google Patents
Two-stage light gas gun driven through hydrogen energy Download PDFInfo
- Publication number
- CN106679500A CN106679500A CN201610989470.4A CN201610989470A CN106679500A CN 106679500 A CN106679500 A CN 106679500A CN 201610989470 A CN201610989470 A CN 201610989470A CN 106679500 A CN106679500 A CN 106679500A
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- Prior art keywords
- pump line
- transmitting tube
- combustor
- hydrogen
- light gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/70—Details not provided for in F41B11/50 or F41B11/60
Abstract
The invention belongs to the technical field of light gas gun experiments, and particularly relates to a light gas gun driven through hydrogen and oxygen mixed gas detonation, in particular to a two-stage light gas gun driven through hydrogen energy. According to the technical scheme, the two-stage light gas gun driven through hydrogen energy comprises a combustor, a gas injection device, an ignition device, a pump pipe, a high-pressure cone section, a transmitting pipe, a target chamber and a magnetic speed testing device, wherein the ignition device is installed at one end of the combustor, the other end, opposite to the end with the ignition device, of the combustor is connected with the pump pipe, and a pump pipe membrane and a pump pipe membrane breaker are arranged at the junction; the gas injection device is used for injecting hydrogen, oxygen and inert gas into the combustor; a piston is arranged in the pump pipe; the large-diameter portion of the high-pressure cone section is connected with the pump pipe; the small-diameter portion of the high-pressure cone section is connected with the transmitting pipe, and a transmitting pipe membrane and a transmitting pipe membrane breaker are arranged at the junction; shots are arranged in the transmitting pipe, and one end of the transmitting pipe is located in the target chamber; and the magnetic speed testing device is installed at the tail end of the transmitting pipe and connected with an oscilloscope. The two-stage light gas gun is driven through hydrogen energy instead of gunpowder, damage to the gun is small, no particular product is generated, and a gun barrel can be cleaned conveniently after experiments.
Description
Technical field
The invention belongs to light gas gun experiment technical field, more particularly to a kind of using hydrogen and oxygen gas mixture detonation as driving
Light-gas gun.
Background technology
Light-gas gun can launch different materials, bullet of different shapes, can simulate the experimental ring of various high speed and ultrahigh speeds
Border, the material property under kinetic energy weapon effect study, terrestrial space physical study, spacecraft shield research and high strain-rate
The field extensive applications such as research, are high speed, ultrahigh speed loading systems very general both at home and abroad at present.
The two-stage light gas gun that California Inst Tech USA and NASA build together, one level segment is driven using gunpowder, two grades
Using helium or hydrogen, launch pipe diameter 1.8mm；One two-stage light gas gun of Tokyo polytechnical university, a level segment gunpowder
Drive, two grades use hydrogen.One two-stage light gas gun of Italian University of Padua, is driven using compressed helium,
The bullet of 100mg can be accelerated to 5.5km/s.
Several two-stage light gas guns above employ gunpowder as driving a bit, although gunpowder energy is larger, a small amount of gunpowder
Condition needed for transmitting can be just reached, but the danger of gunpowder itself is high, storage management gunpowder high cost；And gunpowder uses needs
Certain qualification, this hinders to a certain extent the popularization of light-gas gun；Simultaneously gunpowder can produce substantial amounts of particulate matter and poisonous
Gas, not only causes difficulty to gun tube cleaning, reduces test efficiency, also endangers experiment personnel health.And use compressed gas
The two-stage light gas gun of driving has high demands to monitor body sealing structure, and the energy density of compressed gas is not high enough, be difficult to get compared with
High bullet speed.
The content of the invention
The purpose of the present invention is：Solve the drawbacks of existing light-gas gun is occurred using gunpowder or compressed gas-driven and ask
Topic, there is provided a kind of more cleaning, two-stage light gas gun more efficient, more stable, that more high-elastic speed can be got.
The technical scheme is that：A kind of two-stage light gas gun driven with Hydrogen Energy, it includes：Combustor, gas injection device,
Igniter, pump line, high-voltage cone section, transmitting tube, target chamber and magnetic survey speed variator；
Combustor is barrel-like structure, its opening connection pump line, and blind end center is provided with igniter；The side of combustor
Wall is provided with injecting hole, and gas injection device is filled with hydrogen, oxygen and noble gases by setting order by the injecting hole to burning interior；
Pump line is straight tubular construction, and itself and combustor junction are provided with pump line diaphragm and pump line membrane-repturing device；Pump line side
Wall is provided with the passage for evacuation；
The big end of high-voltage cone section is connected with pump line, and small end is connected with transmitting tube；
Transmitting tube is straight tubular construction, and in itself and the junction of high-voltage cone section transmitting tube diaphragm and transmitting tube rupture of membranes are provided with
Device；The other end of transmitting tube is located in target chamber；
Target chamber is provided with observation window and vacuum pumping hole；
Magnetic survey speed variator is arranged on the end of transmitting tube, and connects oscillograph；
Piston is placed in pump line at close pump line diaphragm；Bullet is placed in transmitting tube at close transmitting tube diaphragm.
Beneficial effect：(1) present invention replaces gunpowder to be driven using Hydrogen Energy, and the damage to big gun is less, and will not produce
Granular product, is easy to cleaning gun barrel after test, and conventional efficient is improve to a certain extent；And will not produce poison in testing
Body, it is free from environmental pollution.
(2) present invention adopts hydrogen, oxygen detonation driven, and is filled with a certain proportion of noble gases, so both simplified operations,
Be conducive to environmental protection again, while the corrosion phenomena of gun tube can also be reduced largely.
(3) compared with being driven using compressed gas or gunpowder, capacity usage ratio is higher, it is easier to get higher for the present invention
Bullet speed.
(4) cost of the gunpowder storage management that gunpowder drive belt is come is present invention, avoiding, only industrial gas bomb need to be used
Storage hydrogen-oxygen, reduces experimental cost.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of combustor section in the present invention；
Fig. 3 is the structural representation of pump line membrane-repturing device in the present invention；
Fig. 4 is the structural representation of transmitting tube membrane-repturing device in the present invention.
Specific embodiment
Referring to accompanying drawing 1, a kind of two-stage light gas gun driven with Hydrogen Energy, it includes：Combustor 1, gas injection device 2, igniting dress
Put 3, pump line 4, high-voltage cone section 5, transmitting tube 6, target chamber 7, magnetic survey speed variator 8.Auxiliary equipment includes：Pump line diaphragm 9, pump line rupture of membranes
Device 10, piston 11, transmitting tube diaphragm 12, transmitting tube membrane-repturing device 13, bullet 14, anti-electrostatic wrist ring.External equipment has oscillograph.
Combustor 1, pump line 4, the inner surface of high-voltage cone section 5 carry out chromium plating process, prevent the reacted corrosion of hydrogen detonation from making
With.
Combustor 1 is barrel-like structure, and one end open, the outer wall at opening is designed with screw thread, for pump line 4 on big spiral shell
Mother coordinates, and realizes the connection with pump line 4；The perforate for installing igniter 3 is provided with another side end face of combustor 2；
The side wall top of combustor 1 is provided with injecting hole, and gas injection device 2 is flushed with hydrogen gas, oxygen and indifferent gas by the injecting hole to combustor 1
Body.
Pump line 4 is straight tubular construction, and one end is connected with combustor 1, and junction arranges pump line diaphragm 9 and pump line membrane-repturing device
10, pump line 4 is compressed after tightening with the screw thread rotation of combustor 1 by big nut thereon, reaches the purpose of sealed combustion chamber 1；Lean on
Place piston 11 in the inside of pump line 4 of nearly pump line diaphragm 9；The other end of pump line 4 is connected with high-voltage cone section 5；The side wall middle part top of pump line 4
Pore being opened, by the inside evacuation of pump line 4 during for testing, lightweight gas of the pressure between 0.1MPa~1.0MPa is then poured
Body.
The tapered shape of the internal diameter of high-voltage cone section 5 becomes narrow gradually, and it is 2.5~4.5 that diameter reduces ratio, big footpath and the diameter of pump line 4
Identical, path is identical with the diameter of transmitting tube 6；Path one end is connected with transmitting tube 6, and junction is provided with transmitting tube diaphragm 12 and transmitting
Pipe membrane-repturing device 13；The connection of the two ends of high-voltage cone section 5 compresses sealing by hydraulic oil pump.
Transmitting tube 6 is straight barrel type structure, and at internal nearly transmitting tube diaphragm 12 bullet 14 is placed, and the other end is located in target chamber 7.
Magnetic survey speed variator 8 is arranged on the end of transmitting tube 6, is connected with oscillograph by Q9 lines, the signal oscillograph of generation
Collection, so as to obtain the speed of bullet 14.
Target chamber 7 is provided with multiple observation windows 15, be easy to laboratory observation or from internal connecting test line out；The top of target chamber 7
Pore is opened, by target chamber 7 and the inside evacuation of transmitting tube 6 during experiment.
Pump line diaphragm 9 and transmitting tube diaphragm 12 are the circular metal diaphragm of middle pre- recessing, and thickness is in 2~8mm, pump
The ratio of the diameter of periosteum piece 9 and the diameter of pump line 4 between 1.2~1.4, the ratio of the diameter of transmitting tube diaphragm 12 and the diameter of transmitting tube 6
Value between 2.0~2.5, depending on the depth of the Rupture of Membrane pressure of pump line diaphragm 9 and transmitting tube diaphragm 12 according to pre- recessing, according to
The speed to be got of the experiment diaphragm different with the pressure different choice depth of groove of insufflation gas.
Referring to accompanying drawing 2, gas injection device 2 includes：Inertia gas cylinder 21, oxygen cylinder 22 and hydrogen cylinder 23；Inertia gas cylinder 21, oxygen
Gas cylinder 22 and hydrogen cylinder 23 are connected to the pipeline 25 with pressure gauge 24 and valve 26；Pipeline 25 is by valve 26 and burning
The injecting hole connection of room 1；After the evacuation of combustor 1, be filled with ratio to the inside of combustor 1 by injecting hole is gas injection device 2
1：1 hydrogen and oxygen, particularly will continue to be filled with a certain proportion of noble gases, Jing after igniting with react remaining oxygen and
Noble gases are driven for medium, so both ensure that the medium required for driving, and it is existing effectively to alleviate barrel erosion
As.
Igniter 3 is arranged on the side end face of combustor 1 one, is fixed with nut；Igniter main material is thermal explosion silk,
Can ensure that hydrogen and oxygen gas mixture, in the indoor formation detonation wave of burning, makes rupture of diaphragm Jing after the igniting that is powered, form driving force.
Referring to accompanying drawing 3, pump line membrane-repturing device 10 is the circular rings that straight tube hole is opened in an inside, and diameter is identical with the diameter of pump line 4,
Pump line diaphragm 9 after directly contact rupture, can remove and change, and play and be easy to remove after the protection inner surface of pump line 4 and experiment
The effect of diaphragm.
Referring to accompanying drawing 4, transmitting tube membrane-repturing device 13 is the circular gasket ring that bellmouth is opened in an inside, the big footpath of inner surface and transmitting
The groove length of periosteum piece 12 is equal, and path is identical with the diameter of transmitting tube 6, can remove and replace, and directly glues after rupture of diaphragm
It is connected on transmitting tube membrane-repturing device 13, had both protected the internal diameter of transmitting tube 6, is easy to take out diaphragm after the test again.
During experiment, first combustor 1, pump line 4, high-voltage cone section 5, transmitting tube 6, target chamber 7 are evacuated to into vacuum, then gas injection dress
Put 2 and ratio is filled with to the inside of it for 1 by the injecting hole of combustor 1：1 hydrogen and oxygen, particularly will continue to be filled with set amount
Noble gases；The light gas of setting pressure are filled with to the inside of it by the passage of pump line 4.Jing after igniting, hydrogen-oxygen moment is anti-
Detonation should be formed, remaining oxygen and noble gases are become high temperature and high pressure gas by the energy moment for reacting release, make pump line film
The rupture pusher of piece 9 piston 11 travels forward, the light gas inside piston compression pump line 4, by forming pole after high-voltage cone section 5
High temperature and high pressure gas, when gas reaches the rupture of the Rupture of Membrane pressure rear film of transmitting tube diaphragm 12, high pressure light gas promote bullet 14
Accelerate inside transmitting tube 6, finally reach goal pace and target.
In this example, the inner space of combustor 2160mm × 1200mm, gas chamber volume 24L, be connected a side opening with pump line 4
Diameter 110mm, the noble gases that inside is filled with select nitrogen.The diameter 110mm of pump line 4, the light gas that inside is filled with select hydrogen
Gas；The thickness of pump line diaphragm 9 is 5mm, diameter 138mm, the long 102mm of groove.The cone angle of high-voltage cone section 5 is 15 degree, big footpath 110mm,
Path 30mm.The internal diameter 30mm of transmitting tube 6, the thickness 5mm of transmitting tube diaphragm 12, diameter 70mm, the long 34mm of groove.
Table one gives the trajectory of the present invention in numerical simulation and estimates speed：
| Sequence number | Air chamber hydrogen presses MPa | Bullet weight g | Release pressure MPa | Gun muzzle bullet speed km/s | Last ms |
| 1 | 0.473 | 22 | 60 | 3.232 | 37.4 |
| 2 | 0.498 | 22 | 60 | 3.37 | 36.4 |
| 3 | 0.622 | 22 | 60 | 3.767 | 32.3 |
| 4 | 0.809 | 22 | 60 | 4.381 | 28.6 |
| 5 | 0.995 | 22 | 60 | 4.807 | 26.1 |
| 6 | 1.244 | 22 | 100 | 5.323 | 23.8 |
| 7 | 1.617 | 22 | 100 | 5.881 | 21.4 |
| 8 | 1.929 | 22 | 100 | 6.086 | 19.9 |
| 9 | 2.239 | 22 | 100 | 6.459 | 18.6 |
| 10 | 2.489 | 22 | 100 | 6.669 | 17.8 |
| 11 | 2.737 | 22 | 100 | 6.796 | 17.0 |
| 12 | 3.772 | 22 | 100 | 7.044 | 16.3 |
| 13 | 2.986 | 13 | 100 | 7.900 | 16.2 |
| 14 | 3.235 | 27 | 100 | 6.925 | 15.8 |
Table two gives the part measured trajectory speed of the present invention：
It can be seen that, bullet quality is reduced, it is filled with higher combustor hydrogen pressure, so that it may get higher bullet speed, reach 7.9km/s
What the speed of even more than 8km/s was possible to.
It has to be noted that operator wear anti-electrostatic wrist ring when hydrogen-oxygen is filled with to combustor, inflatable safety is ensured,
Note bracelet don't fail to being connected into ground wire.To strictly observe working specification during inflation, operator all remove with electronics
Equipment, and wear anti-electrostatic wrist ring, in strict accordance with being first filled with hydrogen, after pour oxygen, be finally filled with the order of noble gases
It is inflated.
Claims (6)
1. it is a kind of with Hydrogen Energy drive two-stage light gas gun, it is characterised in that it includes：Combustor (1), gas injection device (2), igniting
Device (3), pump line (4), high-voltage cone section (5), transmitting tube (6), target chamber (7) and magnetic survey speed variator (8)；
The combustor (1) is barrel-like structure, and its opening connects the pump line (4), and blind end center is provided with the igniting
Device (3)；The side wall of the combustor (1) is provided with injecting hole, the gas injection device (2) by the injecting hole by setting order to
Hydrogen, oxygen and noble gases are filled with the combustor (1)；
The pump line (4) is straight tubular construction, and combustor (1) junction is provided with pump line diaphragm (9) and pump line at it
Membrane-repturing device (10)；Pump line (4) side wall is provided with the passage for evacuation；
The big end of the high-voltage cone section (5) is connected with the pump line (4), and small end is connected with the transmitting tube (6)；
The transmitting tube (6) is straight tubular construction, and transmitting tube diaphragm (12) is provided with the junction of the high-voltage cone section (5) at it
With transmitting tube membrane-repturing device (13)；The other end of the transmitting tube (6) is located in the target chamber (7)；
The target chamber (7) is provided with observation window (15) and vacuum pumping hole；
The magnetic survey speed variator (8) connects oscillograph installed in the end of the transmitting tube (6)；
Piston (11) is placed in the pump line (4) near pump line diaphragm (9) place；Near institute in the transmitting tube (6)
State transmitting tube diaphragm (12) place and place bullet (14).
2. a kind of two-stage light gas gun driven with Hydrogen Energy as claimed in claim 1, it is characterised in that the gas injection device (2)
Including：Inertia gas cylinder (21), oxygen cylinder (22) and hydrogen cylinder (23)；The inertia gas cylinder (21), the oxygen cylinder (22) with
And the hydrogen cylinder (23) is connected to the pipeline (25) with pressure gauge (24) and valve (26)；The pipeline (25) with it is described
The injecting hole connection of combustor (1) side wall.
3. a kind of two-stage light gas gun driven with Hydrogen Energy as claimed in claim 1 or 2, it is characterised in that the combustor
(1), the inner surface of the pump line (4) and the high-voltage cone section (5) carries out chromium plating process.
4. a kind of two-stage light gas gun driven with Hydrogen Energy as claimed in claim 1 or 2, it is characterised in that the high-voltage cone section
(5) two ends compress sealing by hydraulic oil pump with the pump line (4), the transmitting tube respectively.
5. a kind of two-stage light gas gun driven with Hydrogen Energy as claimed in claim 1 or 2, it is characterised in that the pump line diaphragm
And the transmitting tube diaphragm (12) is the circular metal diaphragm of pre-slotting in the middle of end face (9).
6. a kind of two-stage light gas gun driven with Hydrogen Energy as claimed in claim 1 or 2, it is characterised in that the pump line rupture of membranes
Device opens round-meshed annulus centered on (10)；Place is provided with the annulus pad of bellmouth centered on the transmitting tube membrane-repturing device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989470.4A CN106679500B (en) | 2016-11-10 | 2016-11-10 | A kind of two-stage light gas gun driven with Hydrogen Energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989470.4A CN106679500B (en) | 2016-11-10 | 2016-11-10 | A kind of two-stage light gas gun driven with Hydrogen Energy |
Publications (2)
| Publication Number | Publication Date |
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| CN106679500A true CN106679500A (en) | 2017-05-17 |
| CN106679500B CN106679500B (en) | 2018-08-17 |
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| CN108489331A (en) * | 2018-04-02 | 2018-09-04 | 中国工程物理研究院流体物理研究所 | A kind of light-gas gun with shearing bullet |
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