CN107192307B - It is a kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system - Google Patents
It is a kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system Download PDFInfo
- Publication number
- CN107192307B CN107192307B CN201610413881.9A CN201610413881A CN107192307B CN 107192307 B CN107192307 B CN 107192307B CN 201610413881 A CN201610413881 A CN 201610413881A CN 107192307 B CN107192307 B CN 107192307B
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- shell
- gas
- gas generator
- operating room
- buoyancy system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/02—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate
- C06B31/04—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with carbon or sulfur
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Air Bags (AREA)
Abstract
It is a kind of to provide the gas generating unit of gas source, including shell for underwater ordnance buoyancy system, it is formed in the intracorporal combustion chamber of shell and operating room, more than one is installed on the igniter on shell one end；Shell is provided with filter sleeve, and filter sleeve includes big outer cylinder, small inner cylinder；Combustion chamber is formed by the built-in low temperature gas generator propellant of small inner cylinder, and operating room is formed by the chamber dress low temperature gas producing medicinal between big outer tube inner wall and small inner tank theca；Housing side is equipped with multiple exhaust outlets.The present invention has structure simple, forces down in light-weight, generator, the advantages such as outlet pressure is stable, dust is few, outlet gas temperature is low；Can meet the needs of for the inflation of the closed utricules such as underwater article floating upward quickly, waterborne and air rescue.
Description
Technical field
The present invention relates to a kind of gas generators.
Background technique
Underwater ordnance expeimental cartridge needs to recycle during the test to obtain test data, if one root long rope of band when test
It is lauched, influences whether the ballistic performance of expeimental cartridge, when long range horizontal movement, can not be recycled at all using rope, it is therefore desirable to
A kind of emergency buoyancy system, the system are made of controller, gas generator, air bag etc., can be mounted on expeimental cartridge, not shadow
The normal work for ringing expeimental cartridge issues ignition signal by the depth of water controller after expeimental cartridge has worked, and starts gas generator, produces
Raw a large amount of cryogenic gas make utricule expand acquisition buoyancy rapidly, and expeimental cartridge is emerged.System requirements gas generator tool
There is the features such as gas forming amount is big, starting is fast rapidly, fuel gas temperature is low, solid particle is few in gas.
Firework type gas generator is mainly used in safe automobile air bag at present, and gas production is small, and gas temperature is high, Bu Nengman
It is enough to atm number, the closed utricule of pressure maintaining is required to inflate requirement.
Summary of the invention
The present invention is to solve underwater ordnance to test the problems such as process needs band rope recycling, influences trajectory accuracy, and provide
A kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system, structure is simple, forced down in light-weight, generator,
Outlet pressure is stable, dust is few, outlet gas temperature.
The technical scheme is that including shell, it is formed in the intracorporal combustion chamber of shell and operating room, more than one installation
Igniter on shell one end；Shell is provided with filter sleeve, and filter sleeve includes big outer cylinder, small inner cylinder；Combustion chamber is by small
The built-in low temperature gas generator propellant of inner cylinder is formed, and operating room produces gas by the chamber dress low temperature between big outer tube inner wall and small inner tank theca
Medicament is formed；Housing side is equipped with multiple exhaust outlets.
The igniter is connect through ignition powder with combustion chamber.An ignition powder is equipped between the combustion chamber and housing bottom
Ring or the medicine box that ignites.Igniter outlet end faces ignition powder ring surface, can quickly light cyclome burning of igniting；Igniter outlet
There are certain gap between end and ignition powder ring surface, the combustion gas convenient for the flame and ignition powder of igniter can quickly expand
It dissipates.After the cyclome that ignites burning, the low temperature gas generator propellant that can be ignited again in the combustion chamber, shape after the burning of low temperature gas generator propellant
At combustion gas entered in operating room by combustion chamber orifice plate, low temperature gas producing medicinal combustion decomposition of igniting forms a large amount of low temperature gas
Body is discharged outside generator by exhaust outlet.
Described operating room one end adjusts cushion block equipped with foam-rubber cushion, operating room's cavity.Adjusting cushion block is to realize and working
After the indoor different amounts of low temperature gas producing medicinal of loading, suitable cushion block is set for filling residual cavity；The effect of foam-rubber cushion is
Due to the indoor volume difference of the work of each filter sleeve, the low temperature gas producing medicinal of same loadings is packed into different product
Afterwards, extra cavity caused by packing volume difference is realized, it can be ensured that low temperature gas producing medicinal is firm not to be shaken.
The shell is open at one end, the closed tubular structure of the other end, after end cap is inserted in sealing ring, is loaded on by screw thread
The open-mouth of shell, operating room's cavity adjust cushion block and offset with end cap, and by adjusting cushion block during end cap screws in
Gradually compress foam-rubber cushion and low temperature gas producing medicinal.
The housing central section be equipped with through in combustion chamber and operating room, end cap for transmission cable and the center of signal wire
Pipe.
Gap is reserved between the shell and filter sleeve, gap is formed convenient for gas equably from the discharge of each stomata
Toroidal cavity.
Cyclic annular utricule or spherical utricule are cased with outside the shell.
The shell both ends are respectively equipped with multiple ring flanges, and cyclic annular utricule or spherical utricule are loaded on two therein or one
On ring flange.
Big outer cylinder, the small inner cylinder of the filter sleeve are formed by compound orifice plate, and big outer cylinder, small inner cylinder are welded by bottom plate
It is structure as a whole.
The compound orifice plate is by orifice plate, sieve and metal felt up of three-layer；Or compound orifice plate is by orifice plate and metal felt two
Layer composition；Or compound orifice plate by orifice plate and metal wire combined is suppressed.The aperture of regulating orifice plate and breathing area, sieve screen apertures
The filtering accuracy and thickness of diameter and metal felt can effectively adjust filter device inside and outside differential pressure, guarantee combustion gas filtering essence to reach
The purpose for reducing inside and outside differential pressure while spending as far as possible, improves the structural reliability and functional reliability of generator.Gas generator
Both ends are respectively equipped with the fixed position of bolt, and in generator bottom, the other end is processed in outermost for end bolt holes processing therein
On ring flange.
The present invention can meet the needs of for the inflation of the closed utricules such as underwater article floating upward quickly, waterborne and air rescue,
Underwater ordnance expeimental cartridge deep water recycles emergency buoyancy system.The present invention is using low temperature gas generator propellant and low temperature gas producing medicinal, combustion
Burn formed gas temperature lower (gas temperature highest only has 300 DEG C or less), formed gas quantity greatly, the working time can root
According to needing to be adjusted to 0.2s ~ 2s, does not need through physically or chemically cooling measure, a large amount of combustion gas of formation are directly filled with air bag
In without air bag of scalding or burn；The generator of same volume can produce more tolerance；It is mainly used for underwater different deep
It spends in (predominantly 10m ~ 250m also can according to need the working depth for being adjusted to bigger) recyclable device, it can also be used to land
On throwing object in high sky buffer air bag, Mars landing system etc..Compared with prior art, the invention has the characteristics that:
1, for the present invention for the granular gas producing medicinal design of low temperature, structure is simple, and gas production is big, and it is low to produce temperature degree；It does not need
By physically or chemically cooling measure, the closed utricule inflation of no thermal protection can be met and required；
2, generator is light-weight, small in size, and it is easy to install sealing with airbag；
3, it is forced down in generator, aeration speed block, operating pressure and gas forming amount stability are good；
4, the assembly of generator internal component is easy, fixed reliable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is combustion gas recurring structure component installation diagram.
Fig. 3 is combustion chamber, operating room, filter device Combination Welding part.
Fig. 4 is that operating room's cavity adjusts cushion block.
Fig. 5 is one closed container pressure of embodiment-time, temperature-time curve.
Fig. 6 is two closed container pressure of embodiment-time, temperature-time curve.
Specific embodiment
The present invention is described in detail With reference to embodiment
In Fig. 1,2,3, shell 4, end cap 1 and filter sleeve (also referred to as filter device) 5 constitute generator main body.Shell 4 is
Cylindrical shape, exhaust outlet 16 are distributed in 4 circumference of shell between sealing flange 20 to exhaust outlet aperture is Φ 1mm~Φ 5mm, hole
Diameter size and hole number are adjusted according to gas production.The built-in filter device 5 of shell 4, filter device 5 separate enclosure interior
For combustion chamber 18 and operating room 17.Operating room 17 is made of outer ring filter screen, inner ring outer wall of combustion chamber and shell, and inside filling is low
Warm gas producing medicinal, for generating a large amount of cryogenic gas；Toroidal cavity between 5 outer wall of shell and filter device is to realize combustion
Gas pressure acts on, and is equably discharged by lateral aperture.Combustion chamber 18 is located at the axial center of filter device 5, positioned axially low
Warm gas generator propellant 15 is equipped with ignition powder 7, at least one igniter on 4 bottom of shell between 4 bottom of combustion chamber 18 and shell
8, if two igniters of setting, igniting reliability can be improved, ignition powder 7 and low temperature gas generator propellant 15 are lighted in the excitation of igniter 8,
Ignition powder 7 and low temperature gas generator propellant 15 ignite rapidly low temperature gas producing medicinal 14 in operating room 17 after burning.Pass through axial arrangement
More root long strip low temperature gas generator propellant medicinal strips, it can be achieved that medicinal strip large area conflagration, combustion gas uniformly, is promptly filled with
And the low temperature that ignites enters gas producing medicinal 14, establishing generator, initial pressure is fast, operating pressure is stablized, adaptable.Ignition powder 7 can
To use high burn rate solid fuel or black powder, boron/KNO3Ignite cyclome or the medicine box that ignites is made in ignition charge etc., using this design
Igniter fire energy can be reduced, the generator starting time is effectively reduced in quick igniting burning indoor low temperature gas generator propellant.Shell
4 longitudinal central portion of body can be used for transmission cable and signal wire, Ke Yigen there are the central tube 13 that one is worn cable and signal wire
According to Demand Design pore size, generally Φ 10mm ~ Φ 30mm；When such as requiring without communication/energization, the pore structure can be cancelled.In
With shell 4 by being welded as a whole, the connection of central tube 13 and end cap 1 is realized using 1 ~ 2 rubber seal to be sealed heart pipe 13.
The design of 4 both ends of shell has utricule to assemble sealing ring flange 20, can also design 1 ~ 3 ring flange on shell 4 as needed and use
It installs and assembles in structure.2 ~ 6 tapped blind holes that 4 bottom of shell is uniformly spaced are fixed for generator installation, and end cap 1 has 2 ~ 4
A tapped blind hole is assembled for generator end cap.
After generator is connected to ignition signal, igniter 8 is excited, and lights the then low temperature combustion in pilot combustion room of ignition powder 7
Hot combustion gas after gas generating compositions 15, ignition powder 7 and the burning of low temperature gas generator propellant sprays into operating room 17, low in operating room 17 of igniting
Warm gas producing medicinal 14 generates a large amount of cryogenic gas, and low temperature combustion gas is filled with utricule by filter screen and wall exhaust mouth.
In Fig. 4, filter device 5 includes big outer cylinder, small inner cylinder；Combustion chamber 18 is by the built-in low temperature gas generator propellant shape of small inner cylinder
At；Operating room 17 is formed by the chamber dress low temperature gas producing medicinal between big outer tube inner wall and small inner tank theca.Filter device 5 it is big
Outer cylinder, small inner cylinder are formed by compound orifice plate (i.e. filter screen), and big outer cylinder, small inner cylinder are welded into integrated knot by metal base plate
Structure, i.e. combustion chamber 18 and operating room 17 are welded into one by metal base plate.Combustion chamber 18 is located at radial center position, is in axis
To cylindrical shape, the length and diameter of cylinder can be adjusted according to the filling dose of gas generator propellant and the design length of operating room 17
It is whole, but total length should not be shorter than the 40% of operating room 17.The barrel of big outer cylinder by three layers of orifice plate, metallic sieve and metal felt or
Orifice plate and two layers of metal felt composition, for filtering combustion gas；The barrel of small inner cylinder can be by metallic sieve and two layers of orifice plate or single layer hole
Board group is at for being isolated two class medicaments.For the breathing area of orifice plate 30% ~ 70%, metallic sieve aperture is 1mm ~ 3mm；Metal felt
Filtering accuracy is less than 50 μm.
5 bottom plate of filter device and top are designed with seal groove, using between O shape rubber seal 6 and shell 4 and end cap 1
The circulating direction of combustion gas stream can be effectively controlled in sealing, stablizes combustion chamber operational pressure.Filter device and central tube, end cap and shell
Body is combined into whole gas generator by screw thread and bolt fastening group.It is not only effectively utilized generator inner space in this way, and
And it is simple and compact for structure, components are few, facilitate the assembly of generator.
Foam-rubber cushion 10, operating room's cavity adjusting cushion block 11 can be prepared in Fig. 5, in operating room 17, according to filling gas producing medicinal
The difference of loadings, to facilitate the size for adjusting studio space, for providing the generator of different gas production.The material of cushion block
The heat-resisting materials such as wooden, rubber, phenolic resin or engineering plastics may be selected.
Embodiment 1
Referring to attached drawing 1, ignition powder 7 and sealing ring 6 equipped with 5g black powder and boron potassium nitrate are bonded in filter device 5
On bottom plate, 100g low temperature gas generator propellant medicinal strip 15 is uniformly bonded on 18 inner wall of combustion chamber.The filter device 5 that will be assembled
Bottom plate is lowered into generator, the granular low temperature gas producing medicinal particle 14 of 800g is packed into operating room, and will with foam-rubber cushion 10
Operating room's remaining space fills up.Sealing ring 3 is put into filter device after sealing ring 2,12 is packed into end cap 1 and utilizes end cap pilot hole
End cap 1 is assembled with shell.Igniter 8 is assembled on generator bottom, generator assembly is completed.
It is tested in 58L closed container with electric current excitation point fire.Data are as shown in Figure 5.Maximum pressure is in container
1.75MPa, gas production reach 1015L, and maximum temperature is 295 DEG C in container, and the time for reaching highest pressure is that can control
0.4s~1.5s。
Embodiment 2
Referring to attached drawing 1,12g is ignited into cyclome and sealing ring 6 is bonded on the bottom plate of filter device 5, by 80g low temperature combustion gas
Propellant medicinal strip 15 is uniformly bonded on Inner Wall of Combustion Chamber.5 bottom plate of filter device assembled is lowered into generator,
It is packed into the granular low temperature gas producing medicinal particle 14 of 620g in operating room, operating room's cavity is adjusted into cushion block 11 and is packed into operating room, produces gas
It is isolated between medicament and cushion block with foam-rubber cushion 10.Sealing ring 3 is put into filter device after sealing ring 2,12 is packed into end cap 1 and utilizes end
Lid pilot hole assembles end cap and shell.Igniter is assembled on generator bottom, generator assembly is completed.
It is tested in 58L closed container with electric current excitation point fire.Data are as shown in Figure 6.Maximum pressure is in container
1.21MPa, gas production reach 702L, and maximum temperature is 280 DEG C in container, and the time for reaching highest pressure is 0.4 ~ 1.5s.
Claims (8)
1. a kind of provide the gas generator of fast aeration for underwater ordnance buoyancy system, it is characterised in that: including shell (4),
It is formed in the intracorporal combustion chamber of shell (18) and operating room (17), more than one is installed on the igniter (8) on shell；Shell (4)
It is provided with filter sleeve (5), filter sleeve (5) includes big outer cylinder, small inner cylinder；Combustion chamber (18) is by the built-in low temperature combustion gas of small inner cylinder
Propellant is formed, and operating room (17) are formed by the chamber dress low temperature gas producing medicinal between big outer tube inner wall and small inner tank theca；Shell
Body (4) side is equipped with multiple exhaust outlets；
Big outer cylinder, the small inner cylinder of the filter sleeve (5) are formed by compound orifice plate, and big outer cylinder, small inner cylinder are welded by bottom plate
It is structure as a whole；
The compound orifice plate is by orifice plate, sieve and metal felt up of three-layer；Or compound orifice plate is by two layers of group of orifice plate and metal felt
At；Or compound orifice plate by orifice plate and metal wire combined is suppressed.
2. according to claim 1 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: the igniter (8) connect through ignition powder (7) with combustion chamber (18).
3. according to claim 1 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: described operating room one end adjusts cushion block (11) equipped with foam-rubber cushion (10), operating room's cavity.
4. according to claim 3 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: the shell (4) is open at one end, the other end closed tubular structure is filled after end cap (1) is inserted in sealing ring by screw thread
In the open-mouth of shell, operating room's cavity adjusts cushion block (11) and offsets with end cap (1).
5. according to claim 4 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: the housing central section is equipped with through combustion chamber and operating room, the interior central tube for being used for transmission cable and signal wire of end cap (1)
(13).
6. according to claim 1 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: gap is reserved between the shell (4) and filter sleeve (5).
7. according to claim 1 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: cyclic annular utricule or spherical utricule are cased with outside the shell (4).
8. according to claim 7 provide the gas generator of fast aeration for underwater ordnance buoyancy system, feature exists
In: shell (4) both ends are respectively equipped with multiple ring flanges (20), and cyclic annular utricule or spherical utricule are loaded on two therein or one
On a ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413881.9A CN107192307B (en) | 2016-06-14 | 2016-06-14 | It is a kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413881.9A CN107192307B (en) | 2016-06-14 | 2016-06-14 | It is a kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system |
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| Publication Number | Publication Date |
|---|---|
| CN107192307A CN107192307A (en) | 2017-09-22 |
| CN107192307B true CN107192307B (en) | 2019-02-22 |
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| CN201610413881.9A Active CN107192307B (en) | 2016-06-14 | 2016-06-14 | It is a kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108562196B (en) * | 2018-02-07 | 2021-04-30 | 湖北航天化学技术研究所 | Dual-working-condition gas generating agent grain |
| CN108769424B (en) * | 2018-06-08 | 2021-02-02 | Oppo广东移动通信有限公司 | Terminal falling-into-water protection method and device, storage medium and mobile terminal |
| CN112919485B (en) * | 2021-01-21 | 2022-07-15 | 中国科学院新疆理化技术研究所 | Compound potassium borate nitrate, potassium borate nitrate nonlinear optical crystal, preparation method and application |
| CN114935283B (en) * | 2022-04-28 | 2023-12-19 | 湖北航天技术研究院总体设计所 | Annular ignition cartridge and burner |
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| EP0978424A2 (en) * | 1998-08-04 | 2000-02-09 | TRW Airbag Systems GmbH & Co. KG | Gas generator with controlable liquid injection |
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| CN204902681U (en) * | 2015-05-19 | 2015-12-23 | 北方特种能源集团有限公司西安庆华公司 | Firework formula gas generator's loaded constitution |
| CN105283357A (en) * | 2013-03-29 | 2016-01-27 | 日本化药株式会社 | Gas generator |
| CN105841555A (en) * | 2015-01-13 | 2016-08-10 | 湖北航天化学技术研究所 | Gas type gas generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0978424A2 (en) * | 1998-08-04 | 2000-02-09 | TRW Airbag Systems GmbH & Co. KG | Gas generator with controlable liquid injection |
| CN102671579A (en) * | 2012-06-07 | 2012-09-19 | 北京神州广安科技股份有限公司 | Gas generator |
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Inventor after: Wu Min Inventor after: Yang Ling Inventor after: Li Ying Inventor after: Xin Pu Bei Inventor after: Zhang Guotao Inventor after: Wang Xiaobo Inventor after: Zhang Xinlong Inventor after: Yu Jian Inventor after: Zhang Lu Inventor before: Wu Min Inventor before: Yang Ling Inventor before: Xin Pu Bei Inventor before: Zhang Guotao Inventor before: Wang Xiaobo Inventor before: Zhang Xinlong Inventor before: Yu Jian |