CN1097495A - Igniter - Google Patents

Abstract

This igniter comprises housing (1), it has air fuel and carries short tube (2,3), powder squib (4), the inlet of powder squib carries short tube (7) to be connected with fuel air mixture, (12) part near this inlet is positioned at outside the housing (1), and the EFI mouth (13) of igniting is housed on it, and device has flare to form device (15) and flare signal indicator (17) in the working end of housing (1) (16) one sides.Flare forms the act as a fuel form of the interrupted annular jet generator (18) of air mixture of device (15).

Description

Igniter

The invention belongs to energy boiler combustion nozzle, the firing tools of petrochemical plant and other burner hearth devices, more definite saying so relates to igniter.

Up to now, the problem of the anti-riot igniting of the burner hearth device of various uses burning nozzle is still a urgent problem.Basically this is that whether these devices have the flare signal indicator owing to also do not have reliable igniter and inspection.

The characteristics of known igniter at first are that the course of work is arranged well inadequately.

In burning is the igniter of carrying out in enclosure interior or in ceramic channel interior, carry out the nozzle back, and have in the igniter of shaft-like combustion stabilizer, because being heated and the thermal shock when lighting of structural detail all can not have sufficiently long life-span and structural reliability.The functional reliability of these igniters is low, its former because: part flame is hidden in the housing, and this has reduced the useful effect of thermal chemical reaction to the burning flare; When igniter and nozzle axis were an angle, the flare of low pressure was stable inadequately in the flowing of following current and bias current; When the starting ignition device, in housing, may blast, this has reduced the reliability that igniter goes out flare; In addition, also because the reliability of the operating mode of igniter and igniting thereof is relevant with pressure in the burner hearth.

Internally fired igniting requires supercharging air, because must overcome and the relevant loss of total pressure of the inner heat release of igniter flow passage component.When attempt increases the length of internally fired igniter (for powerful power boiler, the length that igniting requires can reach 5000mm), can produce the problem relevant with the process dynamic instability, and the unstability of two kinds of patterns is arranged generally: a kind of is periodic instability (flare stretches into device case inside monotonously), another kind is the instability of runout formula, at this moment can produce the acoustical vibration of low frequency, be accompanied by the runout (unstability of thermoacoustics character) of flare.

The performance in the eddy current type igniter of this point is obvious especially, and in these devices, the length that dynamic instability has limited igniter is the 15-20 of its housing pipeline bore doubly (when diameter of the housing is that 750-1000mm is long during for 50mm).

Reliably, checking the flare of igniter selectively, also is present open question.Generally ion of Cai Yonging and optical signalling indicator contain a large amount of dusts in air-flow under real burner hearth condition, and carbon black grain and other are deposited on fuel heat on electrode and the optical element when destroying product, can not guarantee enough reliabilities.

In addition, the ionic formula signal indicator is to condensed water in the air-flow of the igniter of flowing through and moisture sensitivity, and the optical signalling indicator is to other radiation source sensitivities on checked flare next door.

Known a kind of igniter, it comprises housing, carries the short tube of ignition mixture, having annular cuts off, and have manyly on it, make the antipriming pipe form, and have the passage of flame of stable cover at pipe end for the igniting chambeies in the mixture inflow chambers, and the flare of nozzle form forms device, be installed in the housing, on the stable orifice plate of passage of flame end face back, be provided with peep hole and make hole (former Soviet Union's patent that the some burning mixt on the cavity of igniting chamber is used, A, 932116).

Device is worked in the following manner.

Ready natural gas air mixture is sent into short tube, the orifice flow that a part of mixture cuts off by the annular chamber of going into to light a fire, and other parts flow through the antipriming pipe of passage of flame, gas-air is gone in the housing by the orifice flow on the pipe.For a burning mixt, a hole is arranged in igniting in the chamber, after mixture was just lighted by extraneous burning things which may cause a fire disaster, mixture promptly burnt in the igniting chamber, and flame flowing in the circular passage of being made up of shell inner surface and passage of flame outer surface expanded downwards.Then, the mixture that the jump of flame is ignited and flowed out from the passage of flame pipeline, the stable of burning kept by stable cover.

In described device, lighting by the hole of mixture realized that by extraneous burning things which may cause a fire disaster this point only is mounted in the little burner hearth of vacuum and could guarantees in igniter.When burner hearth is when working at super charge or with balancing pull rod, light just to be difficult to realize.

This device work, be that low (mixture may explode in housing the reliability that works of igniter, because the internal channel of the pipeline of passage of flame and device is by same composition, the natural gas air mixture that natural gas one AIR Proportional is approximately the chemical equivalent value is full of; Flare utilizes insufficient, because the most effective root of flare is hidden in the housing; Flare pressure is little, the result is the flare tear fracture in following current and bias current are flowed), low (the igniter exit portion heating of structural reliability, carbon black and dust granule are deposited on the peep hole), also because flame can not be propagated very long distance in the circular passage that is made of passage of flame antipriming pipe and housing, so length limited system, this is to be dispersed because the quality by the pipeline hole flows into, so the flowing velocity in the circular passage increases, and after flowing velocity reached certain value, it is unstable that the expansion of flame in the circular passage becomes.

Known a kind of igniter, it comprises housing, on have short tube that air fuel is sent in the housing chamber, have flare to form device in the housing working end; Also have powder squib in addition, the input of powder squib communicates with the housing chamber, and its port of export is positioned at the natural gas air mixture from housing chamber output area, and powder squib is equipped with the ignition electric nozzle (Russian Patent, A, 1121547) that links to each other with high voltage source.

Device is worked by following mode.

Air and natural gas enter housing and powder squib, carry out inner burning.Because the pulse character of burning in the pipe and the character of pressure kick form in the powder squib and ignite ripple.Flame (flame impingement sound) occurs in the port of export short time of pipe, the natural gas air draught is lighted.Flame impingement occurs in by housing wall, in the semiclosed cavity volume that nozzle and fireproof railings constitute.Burning is carried out in the ceramic passage of nozzle back.Photoelectric sender is noted the flare of igniter.

The flare igniter of this device is a nozzle.The ceramic passage of fireproof railings and their back.

With above-mentioned igniter relatively, this device is insensitive to pressure in the burner hearth, because the ventilation of falling powder squib at any pressure all is reliable.The length of powder squib, thereby also be that the length of whole device is very big, the flowing velocity of powder squib inside is along constant on the length direction of pipe.

Yet, in this igniter, make nozzle, it is work like this that the flare of fireproof railings and ceramic channel form forms device, when in the cavity volume between nozzle and fence during ignition mixture, combustible substance flows out from nozzle, falls in the vortex of fence back, this enters this vortex with regard to having hindered fresh fuel-air, thereby has reduced the reliability of burning and work.

In addition, in this device, when powder squib was worked once more, not getting rid of flare can tear fracture.

The heat chemistry effect of igniter flare has reduced the validity of burned airflow influence because flare enliven part most, root partly is hidden in the ceramic passage.

Described apparatus structure reliability is low, because the element of flare heating igniter, combustible substance, carbon black pellet and other fuel heat are destroyed product and are acted on the flare signal indicator.

For operate as normal, except everything, also require the air pressure height, this high pressure is that the massive losses that forms air pressure in the natural gas air mixture process in blender causes.

Basic task of the present invention is to create a kind of igniter, its flare forms device and should make like this, promptly can improve device work and reliability of structure greatly, increase the influence degree of heat chemistry effect to the nozzle flare, guarantee the stability of igniter flare in following current and bias current are flowed, the result can reduce then that nozzle unit ignites and the duration of ignition, gets rid of the probability that occurs blast when igniting automatically in the burner hearth chamber, reduces the operation and maintenance expense.

According to the present invention, this point reaches like this, in igniter, flare form device make fuel air mixture interrupted-form of annular jet generator, and igniter itself includes the housing to housing chamber supply air fuel short tube, the flare that is located at place, housing working end forms device and powder squib, the arrival end of powder squib communicates with the housing chamber, its port of export is located in the output area of the natural gas air-spray of housing chamber outflow, and powder squib is equipped with the igniting EFI mouth that is communicated with high voltage source.

Preferably with fuel air mixture interrupted-the annular jet generator makes the partition with axial symmetry rotary body form, on its circumference, along toroid groove arranged, and at the port of export of fuel air mixture jet planar end surface is arranged.

Wishing simultaneously to cut off is a disk, and groove makes in this disc and the form in the hole of disk arranged coaxial.

Also partition can be made two cylindrical forms of step, and groove makes the form of the groove on the major diameter step that is positioned at housing chamber one end.

In this case, wish promptly to make some radial holes in the minor diameter stepped profile zone between groove on a housing part, its direction is over against the midfeather part between groove, and its number equates with the groove number.

Be preferably on the device and a chamber be set in the housing outside, it carries short tube and fuel air mixture to carry short tube to communicate with housing by the air that quantitative metering-orifice is housed, input with powder squib is located in the hybrid chamber simultaneously, and its port of export is located at and cuts off on the body, be directly adjacent to a groove and with its coaxial additional channel in.

Also can make device have the flare up fire indicator of a contact temperature-sensitive element formula, it is located at intermittently-planar end surface of annular jet generator on and coaxial with it.

In addition, there is also a desire for an exhausting stub tube communicates with hybrid chamber.

Igniter of the present invention can guarantee to reduce because the damage of the energy source device of the costliness that blast in the fuel air mixture burner hearth causes and stop loss to be repaiied, therefore (life-span between twice repairing is long can to reduce cost of use greatly, insensitive to the pressure in the burner hearth variation, reliable flame random inspection).

Owing to reduced nozzle ignitor firing time and realized the ignition process automation, fuel consumption when therefore apparatus of the present invention can reduce igniting, and can reduce because the cost of use that does not have the burner hearth blowing plant of independent air pressure source (air compressor machine, oil water separator) and use low pressure to cause.

Following the present invention will illustrate with the description and the accompanying drawing of specific embodiment, wherein:

Fig. 1 represents total figure of igniter of the present invention;

Fig. 2 is an igniter schematic overview of the present invention (longitudinal section);

Fig. 3 is the total figure (axonometric projection) according to the interrupted-annular jet generator of the fuel air mixture of Fig. 1 and Fig. 2 device;

Fig. 4 is that the arrow A of Fig. 1 is to view;

Fig. 5 is the housing parts of Fig. 1 and Fig. 2 device, the side view that disconnects and amplify;

Fig. 6 presentation graphs 1 and the fuel air mixture of Fig. 2 igniter be interrupted-the generation situation of annular jet generator (longitudinal section) and the backflow recirculation zone that amplified.

Fig. 7 be fuel air mixture interrupted-total figure (axonometric projection) of another embodiment of annular jet generator;

Fig. 8 identical with Fig. 5 (side view);

Fig. 9 is the partial view of another embodiment of igniter housing of the present invention.

Igniter according to the present invention has housing 1(Fig. 1 and 2), it has along direction of arrow B sends into the short tube 2 of air and sends into the short tube 3 of gaseous fuel in the direction of arrow C to the chamber of housing 1 to the chamber of housing 1.

(partly) is set in the chamber of housing 1 powder squib 4, and its inlet 5 carries short tube 7 to be connected by hybrid chamber 6 and the fuel air mixture that comes out from housing 1 chamber.Hybrid chamber 6 carries short tube 8 to communicate with housing 1 by air, and pipe 8 has quantitative metering-orifice 9 in the porch in its feeding chamber 6, hybrid chamber 6 with outside housing 1 and the blast pipe 10 that is fixed on the flange 11 link to each other.Be positioned at outside the housing 1 with 12 parts of inlet 5 close pipes 4.The EFI mouth of igniting is housed on 12 parts of pipe 4, and it is connected with high voltage source 14.

Be placed with flare generating apparatus 15 in the chamber of housing 1, it is positioned at a side of housing 1 operative end surface 16 and flare signal indicator.

Flare forms device 15(Fig. 1 and 2) make fuel air mixture intermittently-form of annular jet generator 18.

In the embodiment of described installation drawing 1 and Fig. 2, fuel air mixture is interrupted-annular jet generator 18(Fig. 1-3) make form with axial symmetry rotary body, on its circumference, along toroid groove 19 is arranged, and planar end surface 20 is arranged at fuel air mixture jet and output.

In described embodiment, as shown in Figure 3, cut off the form make the step disk, the end in housing 1 chamber is large diameter step 21, minor diameter step 22 has planar end surface 20, groove 19 make groove 19 on step body 21 ' form.

Outlet 23(Fig. 2 of powder squib 4) in cutting off the passage 24 of body, be directly adjacent to a groove 19(groove 19 '), as shown in Figure 4.

Back at the major diameter step 21 of generator 18,25(Fig. 2 of housing 1) on the part, from an end of minor diameter step 22, groove 19 ' between do that many radial hole 26(Fig. 5 are arranged), its number is identical with groove 19 ' number, over against intermediate isolating part groove 19 ' the center.

According to the present invention, igniter flare signal indicator 17(Fig. 2 and 6) makes the form of contact temperature-sensitive element 27, it is positioned at intermittently-planar end surface 20 of the axial symmetry revolving body of annular jet generator 18 on, and it is coaxial with it, owing to like this, can guarantee the selectivity that the igniter flare is checked.

According to the present invention, the foregoing description of igniter can be used in different capacity, press the super charge mode and with the burner hearth nozzle igniting of the steam of balancing pull rod mode work and hot water boiler, also can be used for the energy and other burner hearth safety that requires reliable ignition and stable flame to check, in the automatic control system of no exploding primer.

When igniter of the present invention with the igniting that fixes when chewing, then the combustion air mixture interrupted-annular flow-generator 18(Fig. 7) revolving body make the form of disk 28, and groove makes the hole 19 on disk 28 bodies " form.

Intermittently-embodiment of annular jet generator may also have a lot.Viewpoint from apparatus of the present invention work quality, for this generator independent feature lateral dimension h(Fig. 4 of jet importantly) with the ratio (h/D) of the lateral feature dimensions D of generator 18 should be little, and the closeness (lateral dimension is to the ratio of circumferential jet spacing) of jet is enough big separately, is pooled in total annular jet so that guarantee.Give birth to the back of device 18 in invention, element (lug boss) that should influential recirculation zone, so the generator end face preferably makes flat or recessed.

The operation principle of igniter of the present invention is as follows.

Air is along direction inflow pipe 2(Fig. 2 of direction of arrow B), gaseous fuel flows to short tube 3 along direction of arrow C, simultaneously in housing 1, generated a large amount of fuel gas mixtures from short tube 3 beginnings until the flare formation device 15 of igniter, and begin to hybrid chamber 6 in fact to be full of pure air by short tube 2, under housing 1 internal pressure effect, fuel air mixture 1 flows into mixture chamber 6 along short tube 7 from the chamber, and is carried the pure air of short tube 8 and dosing hole 9 to dash through air and talk to stoichiometric ratio.

Ready like this fuel air mixture is entered the inlet 5 of powder squib 4 by hybrid chamber 6.Simultaneously, the form of the micro-thin interrupted annular jet of the fuel air mixture that flows out from housing 1 through groove 19, is also watered down to the ratio that requires simultaneously, flows out from radial hole 26 then.

After high voltage source 14 is added to high voltage on the igniting EFI mouth 13, the fuel air mixture blast, and, enter recirculation zone 29(Fig. 6 of backflow by powder squib 4 and passage 24), the flare that sends igniting impacts.The fuel air mixture of 16 back, working end is lighted.Simultaneously, at hybrid chamber 6(Fig. 2) in the combustion product that produces enter the combustion chamber through exhausting stub tube 10 and powder squib 4.

Under the situation that does not have burning, stable recirculation zone 29(Fig. 6 that the contact heat-sensitive element 27 of the flare signal indicator 17 of igniter is refluxed) shielding, this recirculation zone is to form from the cold interrupted annular fuel air mixture that igniting dress flows out, and the flare of the nozzle unit that the next door is provided with and the not reaction of radiation of burner hearth.

As flame when powder squib 4 is injected recirculation regions 29, mixture burns, the combustible substance of high temperature is surrounded heat-sensitive element 27, signal indicator 17 promptly shows flare.

Directly in the exit of generator 18 (Fig. 6), by one and form recirculation zone 29 along interrupted-annular jet that the single jet of generator circle distribution is formed in generator 18 back, the stabilizer that burns is worked in this race way.

This stabilizer is worked under the long part that the jet velocity excursion is very wide separately, and the scope of its steady operation is decided by the height of the independent jet of generator 18 ports of export and the diameter ratio of an interrupted annular jet.When needs enlarge this scope, should reduce this ratio.

Burning in recirculation zone 29 is the Combustion Source that flare does not put out.At recirculation zone 29(Fig. 8) and the visible combustion zone 30 of flare between a transition region 31 is arranged, when mixture is not enough, in this district, also may cannot see the flare burning.

Intermittently-outlet of annular jet generator 18 and separately jet accumulate on the location between the border of annular jet, one secondary air b is arranged under the vacuum action of recirculation zone 29, flow into recirculation zone 29 along the direction of arrow a.Because like this, the air residual coefficient in recirculation zone 29 always than in jet exit and igniter housing 1 separately greatly, and mixture is less.

Since groove 19 ' between the back of lug boss vacuum is arranged, so secondary air is inhaled into (Fig. 6) by radial hole 26.It is an annular jet C(Fig. 8 that the many jets separately of the words of an interrupted annular jet compile).The sectional area decision secondary air flow in hole 25 can utilize this point when adjusting igniter of the present invention.

Air is carried short tube 8(Fig. 2) be used for air is sent into hybrid chamber 6, flow by short tube 8 is measured by metering-orifice 9, fuel air mixture is also sent into hybrid chamber 6 from housing 1 simultaneously, like this, mixture in the hybrid chamber 6 has been watered down, when correct selection metering-orifice 9, the air residual coefficient in the hybrid chamber 6 with intermittently-annular jet generator 18 back recirculation zone 29(Fig. 6) in air residual coefficient in the mixture identical.Air residual coefficient in hybrid chamber 6 and the powder squib 4 and the air residual coefficient in the recirculation zone 29 can enlarge the scope (under the changeless situation of air pressure, the gas pressure on the ignition limit of " amount is big " has reached with the ratio at " measuring little " borderline natural gas pressure) of igniting synchronously.

Fall outside this, the desalination of the second stage of mixture can be got rid of mixture in housing 1 implode when this desalination process of proper operation.Desalination for air flow stream phase I of fundamental sum burning is common; Coal gas is diluted by the air in the igniter housing 1.Desalination then is at hybrid chamber 6(Fig. 2 for the second stage of combustion-gas flow) in the additional dilution of being mentioned of mixture, and for basic flow, under the condition that does not have hole 26, be exactly according to arrow a(Fig. 8) direction and arrow d(Fig. 9) direction suck secondary air.When under the little condition of natural gas flow, working, when the composition of mixture in the igniter housing 1 during near the chemical equivalent composition, mixture may explode, at this moment at hybrid chamber 6(Fig. 2) and powder squib 4 in mixture converge together, even electricity consumption nozzle 13 also misfires.When gas was worked under various flow conditions, at hybrid chamber 6, the mixture in pipeline 4 and recirculation zone 29 and the housing 1 was abundanter.Hybrid chamber 6, the mixture composition in pipe 4 and the recirculation zone 29 is near the chemical equivalent composition, and mixture burns is got up, and in housing 1, the mixture overrich, but do not have explosion danger.

As powder squib 4(Fig. 2) when working, the flame pulse (impact) of short time appears in passage 24, when the outlet 23 of powder squib 4 is distributed on the circumference, the direction of this pulse is along recirculation zone 29(Fig. 6) grain direction, like this, can light reliably at the mixture and the whole flare of recirculation zone.

When the outlet of powder squib is another kind of distribution mode, for example, interrupted-the annular jet generator is coaxial, and then flame impingement is opposite with the recirculation zone grain direction, and like this, igniting is just little reliable.

Because blast pipe 10(Fig. 2 is arranged), this just can reduction can cause the pressure pulse that powder squib 4 is lighted a fire, this causes reducing from the flowing velocity of the combustible substance of powder squib 4 passages 24 outflows, improves the situation (Fig. 6) of mixture burns in the recirculation zone 29.

According to the present invention, have interrupted-annular jet generator 18(Fig. 7 of stream disk 28 styles) the work and the above-mentioned device of igniter similar.

Flare signal indicator 17(Fig. 6 of igniter) reliability and high selectivity are the work characteristics decisions that is formed device 15 by flare.

Its essence is flare only to recirculation regions 29, just can light after sending the flame pulse under the promptly interrupted annular jet.Because recirculation zone 29 is adjusted jet shielding, the therefore not burning in recirculation zone 29, flare light and smooth combustion is impossible.

If in power boiler or the work of other burner hearth device nozzles, and powder squib 4 can not be lighted igniter, and then fuel air mixture will burn than the place in downstream at air-flow, but not burning in recirculation zone 29, the there temperature is low, and temperature-sensitive element 27 is output signal not.

Like this, recirculation zone 29 plays a part the first order converter of ignitor flame random inspection, and temperature there has reflected whether igniter flare and smooth combustion are arranged, and temperature-sensitive element 27 plays a part circular second level transducer signal.Temperature-sensitive element is made contact, can react the medium temperature of recirculation zone 29, under the long part of many nozzles burner hearth, help checking the selectivity of flame.

Element 27 and interrupted-annular jet generation body 18 arranged coaxial make the combustible substance in recirculation zone 29, flow to temperature-sensitive element 27 along the direction of arrow e, and this can improve the condition of element 27 and the heat exchange of regional 29 medium.

Igniter of the present invention can guarantee the functional reliability of height under the very big long part of air fuel pressure excursion, and has got rid of the possibility that mixture explodes in the device device case.

In this igniter, adopt interrupted-annular jet generator can guarantee that flare is in the stable burning in housing place, and under the relatively more sufficient condition of the fuel air mixture that is full of housing, the work of assurance igniter, thus fuel air mixture can not be exploded in housing.Like this, might utilize interrupted-annular jet generator air mixture flow that acts as a fuel, i.e. the meter of air mass flow, the share of air is in the great majority in total consume fuel air mixture.The ratio that cross-sectional flow area with the cross-sectional flow area of generator 18 of enough big pipeline 2 of such meter and selection and housing 1 are arranged in the igniter exit, (pressure range of permission is greater than 12 all can to guarantee igniter to work reliably under the little and big situation of air pressure, for example, air pressure can be from 0.5 kPa to 6 kPas, natural gas pressure is from 3 kPas to 36 kPas, when air pressure is constant, natural gas pressure allows to change 3 times, for example, when air pressure is 1.5 kPas, gas pressure from 9 kPas to 27 kPas the condition lower device can both work reliably).

When power boiler device furnace pressure changed, apparatus of the present invention can guarantee the functional reliability of height.

Igniter of the present invention is during from the low-pressure air work of burner hearth air blast or other pressure sources output.Often be free air-flow to cross igniter, structure is overheated in the time of can preventing burner hearth work, and this can guarantee the structural reliability of height.

The characteristics of apparatus of the present invention are not blasts in the housing, at the powder squib not tear fracture of flare of repeatedly lighting a fire when igniting.

In addition, apparatus of the present invention also have the reliability of height during long-term work under the flox condition of following current and bias current, and can guarantee to check the selectivity of flame, and are irrelevant with the nozzle working condition of these uses.

Claims (8)

1, a kind of igniter, it raises housing (1), the short tube (2 of carrying air fuel is arranged on the housing, 3), there is flare to form device (15) and powder squib (4) in the working end of housing (1), the arrival end of powder squib links to each other with the chamber of housing (1), its port of export is positioned at the zone of gaseous fuel from the chamber output of housing (1), powder squib is furnished with the EFI mouth (13) of igniting, it links to each other with high voltage source (14), it is characterized by flare and forms the form that device (15) makes fuel-air mixture-annular jet generator (18).

2, according to the igniter of claim 1, it is characterized by fuel air mixture interrupted-annular jet generator (18) is for having the partition with the revolving body of axis symmetry, the circumference upper edge toroid branch of partition has groove (19) and at the outlet end planar end surface (20) of fuel air mixture jet.

3, according to the igniter of claim 2, it is characterized by partition is a disk (28), and groove makes on this disk (28) body, and the form of the hole coaxial with it (19 ').

4, according to the igniter of claim 2, it is characterized by partition is two step cylindrical shapes, and groove makes the form of the groove (19 ') of the major diameter step (21) that is positioned at housing (1) chamber one side.

5, according to the igniter of claim 4, it is characterized by on (25) of housing (1) part, between the groove (19 ') that advances footpath step (22) for a short time, many radial holes (26) are arranged, its number equals the number of groove (19 '), over against the central authorities of the part of the intermediate isolating between the groove (19 ').

6, according to any one igniter among the claim 2-5, it is characterized by in housing (1) outside hybrid chamber (6) is arranged, it carries short tube (8) and fuel air mixture to carry short tube (7) to communicate with device by the air of being furnished with quantitative metering-orifice (9), simultaneously, the arrival end (5) of powder squib (4) is arranged in hybrid chamber (6), and its port of export (23) is done to cut off on the body, is directly adjacent to a groove (19), and with its coaxial additional channel (24) in.

7, according to any one igniter among the claim 1-5, it is characterized by it and have the flare signal indicator (17) of a contact temperature-sensitive element (27) form, temperature-sensitive element is positioned at intermittently-planar end surface (20) of annular jet generator (18) on, and coaxial with it.

8, according to the igniter of claim 6, it is characterized by it has the blast pipe (10) that communicates with hybrid chamber (6).

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