CN110294087A - A kind of air inflation raft gas generator - Google Patents
A kind of air inflation raft gas generator Download PDFInfo
- Publication number
- CN110294087A CN110294087A CN201910600279.XA CN201910600279A CN110294087A CN 110294087 A CN110294087 A CN 110294087A CN 201910600279 A CN201910600279 A CN 201910600279A CN 110294087 A CN110294087 A CN 110294087A
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- China
- Prior art keywords
- generator
- gas
- igniter
- powder column
- forming agent
- Prior art date
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 68
- 239000000843 powder Substances 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 85
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000003380 propellant Substances 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 239000003721 gunpowder Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/02—Lifeboats, life-rafts or the like, specially adapted for life-saving
- B63C9/04—Life-rafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/18—Inflatable equipment characterised by the gas-generating or inflation device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/02—Lifeboats, life-rafts or the like, specially adapted for life-saving
- B63C9/04—Life-rafts
- B63C2009/042—Life-rafts inflatable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Air Bags (AREA)
Abstract
A kind of air inflation raft gas generator, including generator body, generator upper cover, generator lower cover and gas-forming agent powder column；Generator upper cover and generator lower cover are packed in the both ends of the generator body, combustion chamber of the inner cavity of composition as generator；Gas-forming agent powder column is packed in the combustion chamber by positioning device, the generator upper cover and generator lower cover one of them for installing igniter, another installation filtering cooling device, the gas generated after the burning of gas-forming agent powder column are discharged after filtering cooling device filtering is cooling.
Description
Technical field
The present invention relates to a kind of air inflation raft gas generators.More particularly to using single or multiple
Press type powder column combination one end light a fire one end exhaust air inflation raft gas generator.This gas generator is not for
It is inflated with the air inflation raft of size and type.
Background technique
Air inflation raft is stored on ship, encounters ship because of promptly rescuing when a variety of causes will sink
It is raw.Life raft generally uses adhesive plaster to be bonded.It is at low cost, occupied area is small, light-weight, release is rapid, safely can
By the features such as.
Air inflation raft is generally made of ceiling, upper chamber, lower chamber, raft bottom, air charging system etc..In the sea of some column
It is proved in difficult matter event, air inflation raft can effectively save human life.The air charging system of air inflation raft is several at present
It is entirely gas cylinder.Gas is liquid carbon dioxide, is had the disadvantage that using liquid carbon dioxide steel cylinder:
(1) low temperature fails
In cold district, there is the problem of gasification postpones.Meanwhile great amount of carbon dioxide is instantaneously sprayed from pressure reducing valve, cooling
Effect is obvious, and pressure reducing valve is very easy to be frozen in.Frequently resulting in life raft cannot smoothly rush.
(2) weight and volume do not have advantage
High pressure gas cylinder is very heavy, and general air charging system accounts for the 30% to 50% of life raft total weight.In addition various valved tubes
Part etc., volume are also larger.
(3) the intrinsic defect of steel cylinder
High-pressure cylinder itself belongs to danger source, encounters the accidents such as fire, and destructive power is huge.
(4) maintenance cost is high
It needs to overhaul every year with the high-pressure cylinder in life raft, needs are scrapped within every 3 years.Due to ship on high sea from
By navigating by water, the country of stop is also different.So working as turn(a)round then, it cannot overhaul in time, that is, allow to the cost of overhaul also very
It is high.
(5) aeration speed is slow
Carbon dioxide steel cylinder inflation has frozen cooling effect.It is fine in room temperature and high-temperature condition, but low temperature environment is encountered,
Often slowly, this is unfavorable for the fast aeration rescue in the case of particularly urgent for inflation.
Summary of the invention
Technology of the invention solves the problems, such as: providing a kind of air inflation raft gas generator, this generator is fine
The shortcomings that overcoming current air inflation raft inflation steel cylinder.Small with lightweight, non-maintaining, aeration speed fastly with
And it is affected by temperature small advantage.
The technical solution of the invention is as follows: a kind of air inflation raft gas generator, including generator body, hair
Raw device upper cover, generator lower cover and gas-forming agent powder column；Generator upper cover and generator lower cover are packed in the generator
The both ends of shell, combustion chamber of the inner cavity of composition as generator；Gas-forming agent powder column is packed in described by positioning device
Combustion chamber in, the generator upper cover and generator lower cover one of them for installing igniter, another was installed
Cooling device is filtered, the gas generated after the burning of gas-forming agent powder column is discharged after filtering cooling device filtering is cooling.
Preferably, the positioning device for fixed gas propellant powder column position in a combustion chamber and has elasticity
Supporting role, it is ensured that there are gap and guarantee gas-forming agent powder column vibrations between gas-forming agent powder column and generator body inner wall
Homing under dynamic misalignment.
Preferably, the clearance range 0.5mm-5mm.
Preferably, the positioning device is that support ring or pressure spring and positioning ring combine the unit.
Preferably, the support ring includes centerbody and is evenly arranged on centerbody surrounding and the branch vertical with centerbody
Leg；Ensure the gap between gas-forming agent powder column and generator body inner wall by the supporting leg；Outside the centerbody
Chamfered shape is identical as gas-forming agent powder column cross sectional shape, for the nonplanar structure of the circle protrusion of band at least one, the protrusion
Through-hole is arranged for limiting the distance between gas-forming agent powder column and generator upper cover/generator lower cover, on centerbody to be used for
The gas generated by the burning of gas-forming agent powder column.
Preferably, the height of projection sends out interior 5mm-25mm.
Preferably, the filtering cooling device includes filter net sheet, wire screen or metal lath；
The raised space of setting one is used to install wire screen or metal lath, gas-forming agent medicine on lid under generator
The gas that column burning generates successively is occurring after the filtering of filter net sheet, wire screen or metal lath is cooling from setting
Gas vent discharge under device on lid.
Preferably, the wire screen is hollow cylindrical shape, and the filter net sheet is fixed on the logical shape of circle
Wire more strainer sides open end, gas vent be arranged in the generator lower cover raised side wall ring week arrangement, that is, use
Perpendicular to the side exhaust mode in generator body centre normal direction.
Preferably, boss is set in the raised space, for the metal lath prevented in the raised space
It is limited, filter net sheet is close to generator lower cover end face and is placed, and is held out against by positioning device；Gas vent is arranged at raised bottom
Portion, i.e., using the base bleed mode for being parallel to generator body centre normal direction.
Preferably, the igniter includes electronic ignition tool, igniter plug, pressure cap, igniter case, ignition charge, point
Firearm head；
Electronic ignition tool is placed on that the igniter case equipped with ignition charge is intracavitary, and the ignition lead of electronic ignition tool is through igniting
In plug, the igniter plug for putting on ignition lead is placed in pressure cap closely to be connect with igniter head, and igniter case is opened by the way that it is arranged
The flange portion at mouthful end is connect with pressure cap, and be provided on igniter case surrounding place side wall it is multiple lead flame hole, with generator body
Chamber communicates.
Preferably, the igniter includes electronic ignition tool, igniter plug, pressure cap, ignition charge, igniter head；
The ignition lead of electronic ignition tool is through in igniter plug, and the igniter plug for putting on ignition lead is placed in pressure cap, with igniting
Device head closely connects；Ignition charge is suppressed together with gas-forming agent powder column.
Preferably, the igniter plug 4 is made of rubber and wears the mesoporous of the igniter plug 4 of ignition lead and ignition lead interference is matched
It closes.
Preferably, the igniter is only electronic ignition tool.
Preferably, electronic ignition tool is safe automobile air bag squib, igniter head or other types electric ignition
Mode is packaged with the igniter of ignition charge and resistance wire.
Preferably, the shape of the generator shell is cylindric or cuboid or square.
Preferably, the gas-forming agent powder column is press type powder column, and shape is consistent with generator body shape and ruler
It is very little to be less than generator body；Gas-forming agent powder column is single powder column or multiple powder columns according to being parallel to generator body center
Normal direction connects one by one.
Preferably, the gas that the described gas-forming agent powder column burning mainly generates is nitrogen, carbon dioxide, while gas
Contain the moisture within volume content 20% in ingredient.
Preferably, by adjusting the size of generator external dimensions and internal charge amount, difference is made in gas generator
Series, to meet the inflation needs of all size air inflation raft.
The present invention has the beneficial effect that compared with prior art
The invention proposes a kind of air inflation raft gas generators.This generator can satisfy different type inflatable
The inflation of formula life raft needs.It has ignition mechanism in one end of cylindrical case, and the other end has exhaust gear, in the cylinder
Combustion chamber in shape shell is provided with press type gas-forming agent powder column.Gas-forming agent powder column becomes in the form that multi-disc combines
One entirety.
The gas generator is caused by way of electric ignition.After initiation, igniter is under fire, and lights gas-forming agent medicine
Column.Powder column combustion generated gas, gas are discharged by the filtering cooling device of bottom by the gas vent of bottom.The gas of discharge
Body is inflated air inflation raft by certain pipeline.
By changing the size of generator, explosive payload is increased and decreased, single generator is can control and generates gas
How much.By the combination of different size and specification gas generator, the inflation that can satisfy all size air inflation raft is needed
It wants.
The present invention overcomes the shortcomings that current air inflation raft inflation steel cylinder well.Small with lightweight,
Non-maintaining, aeration speed is fast and is affected by temperature small advantage.
Gas-forming agent powder column of the present invention is only fixed by positioning device, be a separate piece, outside do not need to encapsulate
Or remaining material is wrapped up, unique filtering is combined by some unique clearance requirements while meeting powder column full combustion
Device realizes cooling by the way of heat transfer, has many advantages, such as that lightweight is small.
Air inflation raft is inflated using gas generator of the present invention, entire air charging system weight reduces
30%-50%, volume reduce 20%-40%.- 35 DEG C of low temperature, inflationtime was less than 1.5 minutes.Room temperature inflationtime is less than 1 point
Clock.
Detailed description of the invention
Fig. 1 is 1 schematic diagram of the embodiment of the present invention；
Fig. 2 is 2 schematic diagram of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing and example elaborates to the present invention.
A kind of air inflation raft gas generator, this generator is by way of the internal solids gas-forming agent that burns
Gas is generated, can satisfy the inflation needs of different type air inflation raft.It has igniting dress in one end of cylindrical case
It sets, the other end has exhaust gear, and the combustion chamber in the cylindrical case is provided with gas-forming agent powder column.Gas-forming agent
Powder column becomes an entirety in the form that multi-disc combines.Powder column in the combustion chamber, has positioning device to fix.
The gas generant solids are that one kind is seated in inside generator, the solid mixture of combustion generated gas.It should
Mixture can be suppressed into the powder column of certain shapes by way of compression moulding, and orderly is placed in gas generator.
The gas componant that gas-forming agent burning mainly generates is nitrogen, carbon dioxide.Contain volume content in gas componant simultaneously
The gases such as the moisture within 20%, and a small amount of carbon monoxide.The non-technical difficult point of formula about powder column, as long as meeting above-mentioned requirements
Can (especially water content index is even more important), herein in regard to formula do not repeated excessively.
The inflation that can satisfy different type air inflation raft needs to refer to this generator to the gas of different structure
Expanding lifesaving raft device is inflated, and by adjusting the size of generator external dimensions and internal charge amount, can be developed and be given birth to
The generator of output difference gas production.The generator of these different gas production can meet all size in any combination and pairing
The inflation of air inflation raft needs.
The cylindrical case, it is generally cylindric, it can also be cuboid or cubic column in addition to this.Shell is common
Metal material.
The ignition mechanism is electronic ignition device.Electronic ignition can only be used only to have；Also electronic ignition can be used
Have the mode combined with ignition charge to light a fire.Igniter can be safe automobile air bag squib, igniter head or other types electricity
Sparking mode is packaged with the igniter of ignition charge and resistance wire.
The exhaust apparatus is the channel of gas discharge, is generally realized by way of aperture in exhaust end.Exhaust can be with
It, can also be using the bottom for being parallel to casing center normal direction using the side exhaust mode perpendicular to casing center normal direction
Portion's exhaust mode.It is needed before discharge gas by filtering cooling device filtering cooling.Filtering cooling device is wire screen
Or metal lath.It can be cake or hollow cylinder.
The powder column is press type powder column, and powder column connects one by one according to casing center normal direction is parallel to.Powder column can be with
For cylinder, it is also possible to cuboid or cubic column.Grain configuration with can be consistent with shape, powder column is placed in shell, ruler
It is very little to be less than shell.Powder column can be single powder column, be also possible to the certain orientation connection combination of multiple powder columns.
The indoor positioning device main purpose of burning is to ensure that powder column is placed in casing center position and does not shake or subtract
It is few to shake.Ensure that gap length is consistent between powder column type powder column side and shell；Or square cuboid powder column, each side and shell
Gap length is consistent between body.The positioning device can be with the effect of resilient support, can be in powder column vibration displacement situation
Lower homing.Preferred positioning device can be the combination of elastic support ring or pressure spring and positioning ring.
Embodiment 1
Fig. 1 is a generator cross-sectional view, illustrates that air inflation raft gas generator according to the present invention is a kind of
Embodiment.As shown in the figure, which includes generator body 9, generator upper cover 3 and generator lower cover 12, hair
Raw device upper cover 3 is drum forms, and there are threaded holes at intermediate position, and for installing igniter, igniter can also be using weldering
Form is connect to connect with generator upper cover 3.Generator lower cover 12 is that cylindric and surrounding place side wall is provided with gas vent, generator body 9
It is connect by screw thread or welding form with generator upper cover 3 and generator lower cover 12.The gas generator further includes electric ignition type
Igniter, the device include igniter head 1, igniter plug 4, electronic ignition tool 5, pressure cap 6, and the igniting equipped with ignition charge 8
Device shell 7, the gas generator further include gas generating unit (namely gas-forming agent 10), which can be by igniter
Triggering and generate gas, life raft is inflated rapidly；Gas generator further includes that filtering cooling device (namely filters
Mesh sheet 13 and hollow tubular filter screen 14) and positioning device (namely support ring 11), wherein filtering cooling device is set
It sets in generator lower cover 12, is filtered cooling for gas and residue caused by burning to gas-forming agent 10, prevents
Only residue blocks exhaust outlet.Support ring 11 can play positioning action and cushioning effect to powder column, furthermore also ensure gas
Agent 10 burn caused by gas can between generator body 9 and gas-forming agent 10 gap discharge chamber outside.Furthermore gas
Generator includes o type sealing ring 2, is arranged between generator body 9 and generator upper cover 3, generator lower cover 12, it is ensured that gas
Body propellant 10 burn caused by gas can only be discharged by the exhaust outlet of generator lower cover 12.
Electronic ignition tool 5 in igniter is placed on the tubular igniter case 7 equipped with ignition charge 8 intracavitary, electronics point
The ignition lead of fire tool 5 is through in igniter plug 4, then the igniter plug 4 for putting on ignition lead is placed in pressure cap 6, with igniter head 1
It is closely connected by screw thread.Due to requiring gas that cannot leak, igniter plug 4 is the igniter plug 4 for being made of rubber and wearing ignition lead
Mesoporous need with ignition lead have certain interference fit.The flange portion of igniter case 7 is connect with pressure cap 6, and igniter
Be provided on 7 surrounding place side wall of shell it is multiple lead flame hole, and communicated with 9 chamber of generator body.
In the embodiment, produced since fluidization or the burning of half fluidised form can be generated in 10 combustion process of gas-forming agent
Object, it is possible to block the mesoporous of gas-forming agent 10, gas cannot be discharged in time, and intracavitary pressure is caused to increase.In the embodiment
Middle just to can solve the above problem using support ring 11, which is by the pressing mold molding manufacture to stainless steel plate
Out, specific structure is described as follows:
Support ring 11 include centerbody and be evenly arranged on centerbody surrounding and the supporting leg vertical with centerbody (such as it is circumferential
6 supporting legs of cloth)；Ensure the gap between gas-forming agent powder column and generator body inner wall by the supporting leg；Described
Centerbody outer contour shape is identical as gas-forming agent powder column cross sectional shape, for the nonplanar structure of the circle protrusion of band at least one, institute
The protrusion stated is arranged on centerbody for limiting the distance between gas-forming agent powder column and generator upper cover/generator lower cover
Through-hole is used for the gas generated by the burning of gas-forming agent powder column.
(i.e. following tentacles) ensure gas-forming agent powder column and hair by way of protrusion is arranged on supporting leg in this example
Gap between raw device inner walls.Since a tentacle many places of support ring more than 11 bend to shape as shown in the figure, it is close to generator
9 inner wall of shell, tentacle bending part and 9 inner wall of generator body have enough gaps (general 0.5-5mm), can ensure that gas is sent out
Raw 10 combustion product of agent can also be discharged in the case where blocking mesoporous along inner wall, in addition this structure type of support ring 11, also
It can ensure that the support ring 11 during burning of gas-forming agent 10 will not be deformed because of high temperature, so as to cause gas-forming agent
10 fitting generator lower covers 12, cause gas not to be discharged rapidly.Support ring 11 is made into this way, 11 bottom of support ring and generation
Space between device lower cover 12 can also store part residue, in addition, also having certain positioning and elastic reaction, reduce gas
The shaking of propellant 10.
Filtering cooling device is made of filter net sheet 13 and tubular filter screen 14 in the present embodiment, and filter net sheet 13 is fixed
On tubular filter screen, prevent gas generator when shaking, for filter net sheet with shaking together, losing prevents gas-forming agent
The larger particles residue that 10 burnings generate enters the effect in generator lower cover 12.In addition tubular filter screen 14 not only played
The effect of filter and cooling gas, while the hollow sections of tubular filter screen 14 can also be stored in the case where filter net sheet fails
Part residue.
In the gas generator made of aforesaid way, trigger signal triggers electronic ignition tool 5 first, then by igniter
Ignition charge 8 is triggered, the flame of point of ignition gunpowder 8 passes through the appearance led flame hole and channel to gas-forming agent 10 in 7 ring of igniter case week
It receives in space, the flame ignition of point of ignition gunpowder gas-forming agent 10.Gas-forming agent 10 burn caused by gas pass through
The mesoporous in gap, gas-forming agent between gas-forming agent 10 and generator, by filter net sheet 13 and tubular filter screen 14
After filtering is cooling, it is discharged by 12 ring week gas vent of generator lower cover.
Embodiment 2
Fig. 2 indicates a kind of embodiment of air inflation raft gas generator, and root is used in the gas generator
According to a kind of igniter of form of implementation of the present invention, filtering cooling device and exhaust apparatus.Exhaust apparatus is exactly generator in fact
Lower cover 11, the gas that the burning of gas-forming agent 10 generates are discharged by the exhaust outlet of 12 bottom of generator lower cover, and under generator
The inside of lid 12 needs that boss is made, for placing cake filtration net 14 (i.e. metal lath).
Igniter is made of igniter head 1, igniter plug 4, electronic ignition tool 5 and pressure cap 6, the igniting of electronic ignition tool 5
Line is through in igniter plug 4, and then the igniter plug 4 for putting on ignition lead is placed in pressure cap 6, tight by screw thread with igniter head 1
Close connection.Due to requiring gas that cannot leak, igniter plug 4 is the mesoporous needs for being made of rubber and wearing the igniter plug 4 of ignition lead
There is certain interference fit with ignition lead.
Filtering cooling device is made of filter net sheet 13 and cake filtration net 14, and filter net sheet 13 is placed on generator lower cover
Between 12 and support ring 11, diameter is slightly more a little bit smaller than 9 internal diameter of generator body, prevents the burning of gas-forming agent 10 from generating
Larger particles residue enter in generator lower cover 12, cake filtration net 14 is set in generator lower cover 12.
In the gas generator made of aforesaid way, trigger signal triggers electronic ignition tool 5, the igniter of triggering first
Ignite the gas-forming agent with ignition charge 8, and entire gas-forming agent only has one piece of gas-forming agent with ignition charge, and this
Made of block gas-forming agent is suppressed together with ignition charge.The flame ignition of point of ignition gunpowder 8 gas-forming agent 10.Gas hair
Raw agent 10 burn caused by gas by the mesoporous in gap, gas-forming agent between gas-forming agent 9 and gas generator,
After filter net sheet 13 and the filtering of tubular filter screen 14 are cooling, it is discharged by the gas vent of 12 bottom of generator lower cover.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (18)
1. a kind of air inflation raft gas generator, it is characterised in that: including generator body, generator upper cover, occur
Device lower cover and gas-forming agent powder column；Generator upper cover and generator lower cover are packed in the both ends of the generator body, group
At combustion chamber of the inner cavity as generator；Gas-forming agent powder column is packed in the combustion chamber by positioning device, institute
One of them is used to install igniter the generator upper cover and generator lower cover stated, another installation filtering cooling device, gas
The gas generated after the burning of body propellant powder column is discharged after filtering cooling device filtering is cooling.
2. generator according to claim 1, it is characterised in that: the positioning device is used for fixed gas propellant medicine
Column position in a combustion chamber and there is resilient support effect, it is ensured that stay between gas-forming agent powder column and generator body inner wall
There is gap and guarantees homing in the case of gas-forming agent powder column vibration displacement.
3. generator according to claim 2, it is characterised in that: the clearance range 0.5mm-5mm.
4. generator according to claim 1 or 2, it is characterised in that: the positioning device is support ring or pressure spring
It is combined the unit with positioning ring.
5. generator according to claim 4, it is characterised in that: during the support ring includes centerbody and is evenly arranged on
Heart body surrounding and the supporting leg vertical with centerbody；Ensure gas-forming agent powder column and generator body inner wall by the supporting leg
Between gap；The centerbody outer contour shape is identical as gas-forming agent powder column cross sectional shape, encloses for band at least one convex
The nonplanar structure risen, the protrusion is for limiting between gas-forming agent powder column and generator upper cover/generator lower cover
Distance, setting through-hole is used for the gas generated by the burning of gas-forming agent powder column on centerbody.
6. generator according to claim 5, it is characterised in that: the height of projection sends out interior 5mm-25mm.
7. generator according to claim 1, it is characterised in that: the filtering cooling device includes filter net sheet, gold
Belong to silk filter screen or metal lath；
The raised space of setting one is fired for installing wire screen or metal lath, gas-forming agent powder column on lid under generator
The gas generated is burnt successively after the filtering of filter net sheet, wire screen or metal lath is cooling from being arranged under generator
The gas vent discharge covered.
8. generator according to claim 7, it is characterised in that: the wire screen is hollow cylindrical shape
Shape, the filter net sheet are fixed on wire more strainer sides open end of the logical shape of circle, and gas vent is arranged in the generator
The raised side wall ring week of lower cover arranges, i.e., using the side exhaust mode perpendicular to generator body centre normal direction.
9. generator according to claim 7, it is characterised in that: boss is arranged in the raised space, for anti-
Only the metal lath in the raised space is limited, and filter net sheet is close to generator lower cover end face and is placed, and passes through positioning
Device is held out against；Gas vent setting is in raised bottom, i.e., using the base bleed side for being parallel to generator body centre normal direction
Formula.
10. generator according to claim 1, it is characterised in that: the igniter includes electronic ignition tool, igniting
Plug, pressure cap, igniter case, ignition charge, igniter head；
Electronic ignition tool is placed on that the igniter case equipped with ignition charge is intracavitary, and the ignition lead of electronic ignition tool is through igniter plug
In, the igniter plug for putting on ignition lead is placed in pressure cap closely to be connect with igniter head, and igniter case is open by the way that it is arranged
The flange portion at end is connect with pressure cap, and be provided on igniter case surrounding place side wall it is multiple lead flame hole, with generator body chamber
Room communicates.
11. generator according to claim 1, it is characterised in that: the igniter includes electronic ignition tool, igniting
Plug, pressure cap, ignition charge, igniter head；
The ignition lead of electronic ignition tool is through in igniter plug, and the igniter plug for putting on ignition lead is placed in pressure cap, with igniter head
Close connection；Ignition charge is suppressed together with gas-forming agent powder column.
12. generator described in 0 or 11 according to claim 1, it is characterised in that: the igniter plug is made of rubber and wears a little
The mesoporous and ignition lead of the igniter plug of firewire are interference fitted.
13. generator according to claim 1, it is characterised in that: the igniter is only electronic ignition tool.
14. generator described in 0 or 11 or 13 according to claim 1, it is characterised in that: the electronic ignition tool is that automobile is pacified
Full air bag squib, igniter head or other types electric ignition mode are packaged with the igniter of ignition charge and resistance wire.
15. generator according to claim 1, it is characterised in that: the shape of the generator shell be it is cylindric or
Person's cuboid or square.
16. generator according to claim 1, it is characterised in that: the gas-forming agent powder column is press type powder column,
Shape is consistent with generator body shape and size is less than generator body；Gas-forming agent powder column is single powder column or multiple
Powder column connects one by one according to generator body centre normal direction is parallel to.
17. according to claim 1 or generator described in 16, it is characterised in that: the gas-forming agent powder column burning is main
The gas of generation is nitrogen, carbon dioxide, while containing the moisture within volume content 20% in gas componant.
18. generator according to claim 1, it is characterised in that: by adjusting generator external dimensions and internal charge
Different series is made in gas generator by the size of amount, to meet the inflation needs of all size air inflation raft.
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| CN201910600279.XA CN110294087A (en) | 2019-07-04 | 2019-07-04 | A kind of air inflation raft gas generator |
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|---|---|---|---|
| CN201910600279.XA CN110294087A (en) | 2019-07-04 | 2019-07-04 | A kind of air inflation raft gas generator |
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| CN110294087A true CN110294087A (en) | 2019-10-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112377327A (en) * | 2020-10-20 | 2021-02-19 | 北京控制工程研究所 | Gas generating agent grain fixing structure of solid cold gas generator for space |
| CN112523895A (en) * | 2020-11-30 | 2021-03-19 | 湖北三江航天红林探控有限公司 | Novel gas generator and inflation test method thereof |
| CN115060121A (en) * | 2022-07-01 | 2022-09-16 | 西北工业大学 | Air suction type gas-solid mixed collimator |
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| CN115060121B (en) * | 2022-07-01 | 2023-08-04 | 西北工业大学 | Air suction type gas-solid mixing light-emitting tube |
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