CN203315618U

CN203315618U - Gas generator

Info

Publication number: CN203315618U
Application number: CN2013202628923U
Authority: CN
Inventors: 方楚先; 赵红岩
Original assignee: Shaanxi Lande Senmao Fire Control Technology Co Ltd
Current assignee: Shaanxi Lande Senmao Fire Control Technology Co Ltd
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2013-12-04
Anticipated expiration: 2023-05-14

Abstract

The utility model relates to a gas generator. The gas generator comprises a porous member, a first initiator, second initiators and a lead, wherein first jetting holes are formed in the top of the porous member and are used for jetting supersonic gas from the top of the porous member, and second jetting holes are formed in the side part of the porous member and are used for jetting supersonic gas from the side part of the porous member; the first initiator is accommodated in the porous member; the second initiators are connected with the first initiator and are accommodated in the porous member; the lead is connected with the first initiator. According to the gas generator disclosed by the utility model, due to the adoption of multiple initiators, the power is increased effectively, and the problem that stress is too concentrated is alleviated; and due to the first and second jetting holes, dead-angle-free fire extinguishing agent jetting can be realized, so that the fire extinguishing efficiency is increased.

Description

Gas generator

Technical field

The utility model relates to a kind of gas generator, relates in particular to a kind of Combined gas producer for the supersonic speed fire extinguisher.

Background technology

Development along with the epoch, a lot of occasions in work and life have all installed fire extinguisher additional for security needs, and because the cause specific of some goods can not fire-fight by water, so just need to use dry powder extinguisher, and, in order to strengthen the fire-fighting efficiency of dry powder extinguisher, supersonic speed dry-chemical fire extinguisher has appearred.

And supersonic speed dry-chemical fire extinguisher need to come moment to produce a large amount of gas with gas generator mostly.Existing gas generator comprises porous member and initiator, and mostly adopts single initiator setting; It is diametric along the circular arc nose that center line at the spray orifice of porous member is arranged again, thus the spray orifice of porous member be generally be distributed on arc-shaped curved surface, its direction is not more than 45 ° with axial angle, namely in the bottom of porous member, spray orifice is not set.

And if only have an initiator, power ratio is lower, and stress is too concentrated.And, because the bottom of porous member does not arrange spray orifice, cause the dry powder at " dead angle " can not obtain sufficient atomization, cause fire extinguishing effectiveness very poor.

The utility model content

The purpose of this utility model is the defect for prior art, and a kind of gas generator is provided, and uses many initiator, can improve power, relax the too concentrated problem of stress, and due to the spray fire extinguishing agent that can realize without dead angle that arranges of spray orifice, thereby fire-fighting efficiency improved.

For achieving the above object, the utility model provides a kind of gas generator, and described gas generator comprises:

Porous member, the top of described porous member has the first spray orifice for the top jet supersonic gas from described porous member, and the sidepiece of described porous member has the second spray orifice that sprays supersonic gas for the sidepiece from described porous member;

The first initiator, be contained in described porous member;

The second initiator, be connected with described the first initiator, is contained in described porous member;

Lead-in wire, be connected with described the first initiator.

The axial angle of described the first spray orifice axis and described porous member is 0 to 90 degree.The axial angle of described the second spray orifice axis and described porous member is 45 to 135 degree.Described the second spray orifice axis and described porous member angle radially are 0 degree.Described the second spray orifice is the side spray hole.Described side spray hole is the spiral sides spray orifice.

Described the first initiator is a plurality of, in parallel and/or be connected in series.Described the second initiator is a plurality of, in parallel and/or be connected in series.

Therefore, the utility model gas generator, owing to using many initiator, so effectively raise power, and relax the too concentrated problem of stress, and due to the spray fire extinguishing agent that can realize without dead angle that arranges of the first spray orifice and the second spray orifice, thereby fire-fighting efficiency improved.

The accompanying drawing explanation

The structural representation that Fig. 1 is the utility model gas generator;

The schematic diagram that Fig. 2 is porous member in the utility model gas generator;

The schematic diagram that Fig. 3 is the second spray orifice in the utility model gas generator;

One of schematic diagram that Fig. 4 is initiator in the utility model gas generator;

Two of the schematic diagram that Fig. 5 is initiator in the utility model gas generator;

Three of the schematic diagram that Fig. 6 is initiator in the utility model gas generator;

The schematic diagram of the extinguishing device that Fig. 7 is the application of the utility model gas generator.

The specific embodiment

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

The structural representation that Fig. 1 is the utility model gas generator, as shown in the figure, gas generator of the present utility model specifically comprises: porous member 3, the first initiator 41, the second initiator 42 and go between 9.

The schematic diagram that Fig. 2 is porous member in the utility model gas generator, as shown in the figure, the first spray orifice 31 of porous member 3 is distributed in the bottom of porous member 3, and the axial angle of the first spray orifice 31 axis and porous member 3 is 0 to 90 degree.And the second spray orifice 32 is distributed in the sidepiece of porous member 3.

The axial angle of the axis of the second spray orifice 32 and porous member 3 is greater than 45 degree, be for example 45 to 135 degree, specifically the axial angle of the axis of the second spray orifice 32 and porous member 3 can be 90 degree, namely the second spray orifice 32 axis and porous member 3 angle radially are 0 degree, and the second such spray orifice 32 can be known as radially spray orifice.

The schematic diagram of the second spray orifice in the utility model gas generator as shown in Figure 3 again, the second spray orifice 32 is the side spray hole, and tilts towards a direction, is called the spiral sides spray orifice.

One of schematic diagram that Fig. 4 is initiator in the utility model gas generator, as shown in the figure, there is a main initiator 41 and a secondary initiator 42 in the present embodiment, and main initiator 41 and secondary initiator 42 be connected in series, only have main initiator 41 to be connected with lead-in wire 9.Can be also that a main initiator 41 and a plurality of secondary initiator 42 are connected in series, so also be fine.In like manner, can be that a plurality of main initiator 41 and a secondary initiator 42 are connected in series.Can be also for example that a plurality of main initiator 41 and a plurality of secondary initiator 42 are connected in series again.And be all to only have main initiator 41 to be connected with lead-in wire 9.

Two of the schematic diagram that Fig. 5 is initiator in the utility model gas generator, as shown in the figure, there is a main initiator 41 and a secondary initiator 42 in the present embodiment, and main initiator 41 and secondary initiator 42 be connected in parallel, only have main initiator 41 to be connected with lead-in wire 9.Can be also that a main initiator 41 and a plurality of secondary initiator 42 are connected in parallel, so also be fine.In like manner, can be that a plurality of main initiator 41 and a secondary initiator 42 are connected in parallel.Can be also for example that a plurality of main initiator 41 and a plurality of secondary initiator 42 are connected in parallel again.And be all to only have main initiator 41 to be connected with lead-in wire 9.

Three of the schematic diagram that Fig. 6 is initiator in the utility model gas generator, as shown in the figure, there is a plurality of main initiator 41 and a plurality of secondary initiator 42 in the present embodiment, these main initiator 41 are to be connected in parallel, secondary initiator 42 also is connected in parallel, but a plurality of main initiator 41 and a plurality of secondary initiator 42 are connected in series.In like manner, can be also that main initiator 41 is connected in series, secondary initiator 42 also is connected in series, but a plurality of main initiator 41 and a plurality of secondary initiator 42 are connected in parallel.Equally all to only have main initiator 41 to be connected with lead-in wire 9.

Because only have main initiator 41 to be connected with lead-in wire 9, so being gone between, main initiator 41 directly ignites, when main initiator 41 is detonated, bring out secondary initiator 42.

The schematic diagram of the extinguishing device of the utility model gas generator application shown in Figure 7, the specific works process is as follows:

When static state, the pressure of the first pressure chamber 71 and the second pressure chamber 72 is zero.After extinguishing device receives starting current, lead-in wire 9 is sent to main initiator 41 by current signal, main initiator 41 actions, according to certain procedures, utilize the induced detonation principle to bring out secondary initiator 42, main initiator 41 and secondary initiator 42 discharge a large amount of combustion gas, at the interior rapid formation gases at high pressure product of the first pressure chamber 71.Combustion gas is full of the first pressure chamber 71, and the continuous supercharging of the first pressure chamber 71.When reaching the tension limit of the first pressure chamber film, film is broken through by high pressure draught, and the second spray orifice 32 is opened, and high temperature and high pressure gas highly sprays from the second spray orifice 32, and be full of rapidly the second pressure chamber 72, reach the transient equilibrium of the pressure of the first pressure chamber 71 and the second pressure chamber 72.Now, in the second pressure chamber 72, strong flow perturbation is arranged, the powder extinguishing agent 6 be in contact with it is pulverized and accelerated, the dry powder at this place obtains sufficient atomization, and, in the interior disturbance of housing 2, activity is improved.

In this process, appearance due to the second pressure chamber 72, make the pressure in the first pressure chamber 71 to be discharged in the second pressure chamber 72 by side the second spray orifice 32, surge pressure in the first pressure chamber 71 reduces about 20%--35%, directly reduced the strength of materials requirement to porous member 3, reduce porous member 3 difficulty of processing, reduced production cost and process costs.

Owing to adopting a plurality of main initiator 41 and secondary initiator 42, thus can be so that burning be proceeded, and the pressure in the first pressure chamber 71, the second pressure chamber 72 constantly increases, and makes the pressure in whole housing 2 constantly raise.Because powder extinguishing agent 6 is incompressible, so pressure can be delivered to baffle plate 5 places by powder extinguishing agent 6.Until while meeting and exceeding the tension limit of baffle plate 5, baffle plate 5 is broken through, powder extinguishing agent 6 leaves the extinguishing device directive scene of a fire under the effect of high velocity air.Now, the powder extinguishing agent 6 around the second pressure chamber 72 also sprays to the scene of a fire along with powder extinguishing agent 6 one superhigh speeds that activated by the first pressure chamber 71, rather than prior art is the same by free fall type, is dropped or become residual dry powder.Under the effect of high speed inert gas and high speed dry powder jet, the condition of a fire is controlled and is extinguished by moment.

Therefore the utility model gas generator is owing to having adopted a plurality of main initiator and a plurality of secondary initiator, so this combined type initiator has been improved stressing conditions, reduced the too concentrated problem of stress, reduce pressure peak, and produce gases at high pressure in the time of can growing, effectively increased fire-fighting area.And due to the setting of porous member the first spray orifice and the second spray orifice; kinetic energy in the time of can increasing the dry powder preshoot the dry powder that makes prior art fail to be utilized fully are fully used; effective protected area is enlarged, and quenching distance increases, and has improved the fire extinguishing effectiveness of dry powder.

It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.

Claims

1. a gas generator, is characterized in that, described gas generator comprises:

The first initiator, be contained in described porous member;

Lead-in wire, be connected with described the first initiator.

2. gas generator according to claim 1, is characterized in that, the axial angle of described the first spray orifice axis and described porous member is 0 to 90 degree.

3. gas generator according to claim 1, is characterized in that, the axial angle of described the second spray orifice axis and described porous member is 45 to 135 degree.

4. gas generator according to claim 3, is characterized in that, described the second spray orifice axis and described porous member angle radially are 0 degree.

5. gas generator according to claim 1, is characterized in that, described the second spray orifice is the side spray hole.

6. gas generator according to claim 5, is characterized in that, described side spray hole is the spiral sides spray orifice.

7. gas generator according to claim 1, is characterized in that, described the first initiator is a plurality of, and in parallel and/or be connected in series.

8. gas generator according to claim 1, is characterized in that, described the second initiator is a plurality of, and in parallel and/or be connected in series.