CN211855065U - Solid gas generating device for infrared bait - Google Patents
Solid gas generating device for infrared bait Download PDFInfo
- Publication number
- CN211855065U CN211855065U CN202020393186.2U CN202020393186U CN211855065U CN 211855065 U CN211855065 U CN 211855065U CN 202020393186 U CN202020393186 U CN 202020393186U CN 211855065 U CN211855065 U CN 211855065U
- Authority
- CN
- China
- Prior art keywords
- cooling
- cooling chamber
- gas
- combustion chamber
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The utility model belongs to the technical field of change space science and technology, a solid gas generating device for infrared bait is related to. The solid gas generating device for the infrared bait comprises a combustion chamber shell with an opening at one end, wherein a solid grain is arranged in the combustion chamber shell; the tail part of the combustion chamber shell is provided with a nozzle seat; the nozzle base is provided with an igniter and a gas nozzle; the tail part of the nozzle base is provided with a cooling chamber; the cooling chamber is communicated with an internal cavity of the combustion chamber shell through a gas nozzle on a nozzle seat; a cooling bag matched with the inner cavity of the cooling chamber is arranged in the cooling chamber; the front end of the cooling chamber is communicated with the inner cavity of the combustion chamber shell, and the rear end of the cooling chamber is provided with a rear baffle plate used for enclosing the cooling envelope in the cooling chamber; the rear baffle is provided with a plurality of circular through holes. The utility model discloses effectively avoided high-temperature high-speed gas closely to strike folding balloon utricule, guaranteed that the balloon utricule is not destroyed by high-temperature gas.
Description
Technical Field
The utility model belongs to the technical field of the space flight science and technology, concretely relates to solid gas generating device for infrared bait.
Background
The inflatable balloon infrared bait is used as one kind of infrared bait, and by simulating the infrared characteristics of the target to be protected, various infrared guided weapon guidance systems are interfered, and the infrared guided weapon is tricked to attack a fake target, so that the aim of protecting a real target is fulfilled; before use, the inflatable balloon infrared bait is folded and stored in a target to be protected; when needed, the inflatable balloon is thrown out, and the heat source device generates high-temperature gas to inflate the folded balloon body; and (3) as the inflation is carried out, the balloon volume is expanded, and after the balloon body is filled, the infrared characteristic of the protected target is simulated until the work is finished.
The solid fuel gas generating device has simple structure, few parts and reliable work, can quickly generate high-temperature gas required by the inflatable balloon, and becomes a preferred heat source device for the inflatable balloon. However, the disadvantages of the solid gas generator have been found in the application process. When the initial inflation is carried out, high-temperature high-speed gas generated by the solid gas generating device closely impacts the folded balloon body, so that the balloon body is easily burnt and damaged. Therefore, in view of the above-mentioned disadvantages, there is a need for an improved gas generator for an inflatable balloon.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an infrared solid gas generating device for bait makes it can be when satisfying the balloon heat source needs of aerifing, to the destruction of balloon utricule when avoiding initial inflation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a solid fuel gas generating device for infrared bait is provided with a combustion chamber shell with an opening at one end, wherein a solid explosive column is arranged in the combustion chamber shell; the tail part of the combustion chamber shell is provided with a spray pipe seat for sealing the combustion chamber shell; the nozzle base is provided with an igniter and a gas nozzle; the tail part of the nozzle seat is provided with a cooling chamber; the cooling chamber is communicated with an internal cavity of the combustion chamber shell through a gas nozzle on the nozzle base so as to enable high-temperature gas in the combustion chamber shell to enter the cooling chamber; a cooling bag for gradually absorbing the heat of the high-temperature fuel gas and reducing the temperature of the discharged high-temperature fuel gas is arranged in the cooling chamber; the shape of the cooling bag is matched with the inner cavity of the cooling chamber; the front end of the cooling chamber is communicated with the inner cavity of the combustion chamber shell, and the rear end of the cooling chamber is provided with a rear baffle plate used for enclosing the cooling envelope in the cooling chamber; the rear baffle is provided with a plurality of round through holes for filling the cooled gas into the inflatable balloon infrared bait positioned in the target to be protected.
The cooling bag is made of open-cell porous metal material; the shape of the porous metal material is cylindrical; the metal porous material is made of high-temperature-resistant metal, such as foamed iron nickel, stainless steel sintered wire mesh and stainless steel powder sintered porous material.
The cooling bag is a cylindrical chemical cooling agent positioned in the cooling chamber; a plurality of circular through holes are formed in the chemical cooling agent; the chemical cooling agent is contacted with high-temperature fuel gas discharged from the fuel gas nozzle to be pyrolyzed and absorb the heat of the high-temperature fuel gas; and the time for finishing the complete pyrolysis of the chemical cooling agent is less than the gas discharge time of the gas nozzle.
The front part of the chemical cooling agent is provided with a front baffle; the front baffle is provided with a plurality of circular through holes, and the diameter and the position of the circular through holes are the same as those of the chemical cooling agent.
The chemical temperature reducing agent is polymethyl methacrylate.
The middle part of the front baffle is provided with a positioning boss, and the middle part of the chemical cooling agent is provided with a concave cavity matched with the positioning boss.
The rear baffle is connected with the cooling chamber through a flange and sealed through a sealing ring.
The utility model provides a solid gas generating device for infrared bait, which absorbs the heat of high-temperature gas through metal porous material or chemical cooling agent in the initial stage of the gas generating device, and reduces the temperature of the discharged high-temperature gas; the cooled fuel gas enters the folded inflation balloon through a plurality of through holes on the rear baffle plate, so that the volume of the inflation balloon is expanded; then, finishing the work of the cooling package; the gas gradually recovers high temperature, enters the balloon and enables the surface of the balloon to quickly reach the required temperature. The gas generating device reduces the initial gas temperature through the metal porous material or the chemical cooling agent, and realizes the dispersion of the gas through the porous channel, thereby effectively avoiding the high-temperature high-speed gas from impacting the folded balloon body at a short distance, and ensuring that the balloon body is not damaged by the high-temperature gas; the gas generating device realizes the supply of two kinds of gas, namely initial low temperature and subsequent high temperature, by introducing the temperature reduction chamber, and has the characteristics of simple structure, few parts and low cost compared with a scheme adopting two gas supply devices; in addition, the cooling chamber and the nozzle base are designed to be integrally processed and formed, so that the length size of the gas generating device can be effectively shortened, and the application under the condition of length limitation is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a partial view of the temperature reduction chamber of fig. 1.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a partial view of the temperature reduction chamber of fig. 3.
In the figure: 1. the combustion chamber comprises a combustion chamber shell, 2 solid explosive columns, 3 spray pipe seats, 4 igniters, 5 gas spray nozzles, 6 cooling chambers, 7 rear baffles, 8 metal porous materials, 9 retaining rings, 10 front baffles, 11 chemical cooling agents, 12 positioning bosses.
Detailed Description
The invention is described in connection with the accompanying drawings and the embodiments:
as shown in fig. 1 and fig. 2, the solid gas generator for the infrared bait is provided with a combustion chamber shell 1 with one open end, wherein a solid grain 2 is arranged in the combustion chamber shell 1; the tail part of the combustion chamber shell 1 is provided with a nozzle seat 3 for sealing the combustion chamber shell; the nozzle base 3 is provided with an igniter 4 and a gas nozzle 5; the tail part of the nozzle base 3 is provided with a cooling chamber 6; the temperature reduction chamber 6 is internally provided with an open-cell type metal porous material 8; the shape of the metal porous material 8 is cylindrical; the metal porous material 8 is made of high-temperature-resistant metal, such as foamed iron nickel, stainless steel sintered wire mesh and stainless steel powder sintered porous material; a rear baffle 7 is arranged behind the metal porous material 8, and the metal porous material 8 is fixed in the cooling chamber 6 through the rear baffle 7 and a baffle ring 9; the rear baffle 7 is provided with a plurality of circular through holes; the rear baffle 7 is connected with the cooling chamber 6 through a flange and sealed through a sealing ring.
The working process of the utility model is as follows: before use, the inflated balloon infrared decoy is folded for storage within the target to be protected. When needed, the inflatable balloon is thrown out, an igniter 4 of the gas generating device fires, and the solid grain 2 is ignited to generate high-temperature gas; high-temperature fuel gas enters the cooling chamber 6 through the fuel gas nozzle 5 and further enters the communicating holes in the metal porous material 8; the metal porous material 8 absorbs the heat of the high-temperature fuel gas and reduces the temperature of the discharged high-temperature fuel gas; then, the cooled gas enters the folded inflatable balloon through the porous channel of the rear baffle 7, so that the volume of the inflatable balloon is expanded.
After the inflatable balloon is expanded, the absorbed heat is gradually reduced along with the continuous rise of the temperature of the metal porous material 8; the gas gradually recovers high temperature, enters the balloon and enables the surface of the balloon to quickly reach the required temperature, and the infrared characteristic of the protected target is simulated.
As shown in fig. 3 and 4, the tail part of the nozzle holder 3 is provided with a temperature reducing chamber 6; a cylindrical chemical cooling agent 11 is arranged in the cooling chamber 6; the chemical temperature reducer 11 is polymethyl methacrylate; a plurality of circular through holes are formed in the chemical cooling agent 11; the chemical cooling agent 11 is contacted with the high-temperature fuel gas discharged from the fuel gas nozzle 5 to be pyrolyzed and absorb the heat of the high-temperature fuel gas; and the time of finishing the complete pyrolysis of the chemical temperature reducer 11 is less than the gas discharge time of the gas nozzle 5.
The front baffle 10 and the rear baffle 7 are arranged in front of and behind the chemical cooling agent 11, and the front baffle 10 and the rear baffle 7 are used for fixing the chemical cooling agent 11; the front baffle plate 10 and the rear baffle plate 7 are provided with a plurality of circular through holes, and the diameters and the positions of the circular through holes are the same as those of the chemical cooling agent 11.
The rear baffle 7 is connected with the cooling chamber 6 through a flange and sealed through a sealing ring; the front baffle 10 and the temperature reduction chamber 6 are fixed together by welding.
Preceding baffle 10 middle part be provided with location boss 12, 11 middle parts of chemical cooling agent be provided with location boss 12 complex cavity, the location of chemical cooling agent 11 when setting up of location boss 12 is used for the installation to guarantee that 11 inside circular through-holes of chemical cooling agent can align with the through-hole of preceding baffle 10.
The working process of the utility model is as follows: before use, the inflated balloon infrared decoy is folded for storage within the target to be protected. When needed, the inflatable balloon is thrown out, an igniter 4 of the gas generating device fires, and the solid grain 2 is ignited to generate high-temperature gas; high-temperature fuel gas enters the cooling chamber 6 through the fuel gas nozzle 5 and further enters a circular through hole in the chemical cooling agent 11; the chemical cooling agent 11 is in contact with the high-temperature fuel gas to be pyrolyzed, absorbs the heat of the high-temperature fuel gas and reduces the temperature of the high-temperature fuel gas; and then, the cooled gas enters the folded inflatable balloon through the porous channel to expand the volume of the inflatable balloon.
After the inflatable balloon is expanded, the chemical cooling agent 11 is pyrolyzed; the temperature of the high-temperature fuel gas is not reduced any more, and the high-temperature fuel gas enters the inflatable balloon through the circular through hole of the rear baffle 7, so that the surface of the balloon quickly reaches the required temperature, and the infrared characteristic of the protected target is simulated.
Claims (7)
1. A solid fuel gas generating device for infrared bait is provided with a combustion chamber shell with an opening at one end, wherein a solid explosive column is arranged in the combustion chamber shell; the tail part of the combustion chamber shell is provided with a spray pipe seat for sealing the combustion chamber shell; the nozzle base is provided with an igniter and a gas nozzle; the method is characterized in that: the tail part of the nozzle seat is provided with a cooling chamber; the cooling chamber is communicated with an internal cavity of the combustion chamber shell through a gas nozzle on the nozzle base so as to enable high-temperature gas in the combustion chamber shell to enter the cooling chamber; a cooling bag for gradually absorbing the heat of the high-temperature fuel gas and reducing the temperature of the discharged high-temperature fuel gas is arranged in the cooling chamber; the shape of the cooling bag is matched with the inner cavity of the cooling chamber; the front end of the cooling chamber is communicated with the inner cavity of the combustion chamber shell, and the rear end of the cooling chamber is provided with a rear baffle plate used for enclosing the cooling envelope in the cooling chamber; the rear baffle is provided with a plurality of round through holes for filling the cooled gas into the inflatable balloon infrared bait positioned in the target to be protected.
2. The solid gas generator for infrared decoy of claim 1, wherein: the cooling bag is an open-cell porous metal material made of high-temperature-resistant metal; the porous metal material is cylindrical in shape.
3. The solid gas generator for infrared decoy of claim 1, wherein: the cooling bag is a cylindrical chemical cooling agent positioned in the cooling chamber; the chemical cooling agent is internally provided with a plurality of circular through holes.
4. The solid gas generator for infrared decoy of claim 3, wherein: the front part of the chemical cooling agent is provided with a front baffle; the front baffle is provided with a plurality of circular through holes, and the diameter and the position of the circular through holes are the same as those of the chemical cooling agent.
5. The solid gas generator for infrared decoy of claim 4, wherein: the middle part of the front baffle is provided with a positioning boss, and the middle part of the chemical cooling agent is provided with a concave cavity matched with the positioning boss.
6. The solid gas generator for infrared decoy of claim 3, wherein: the chemical temperature reducing agent is polymethyl methacrylate.
7. The solid gas generator for infrared decoy of claim 1, wherein: the rear baffle is connected with the cooling chamber through a flange and sealed through a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393186.2U CN211855065U (en) | 2020-03-25 | 2020-03-25 | Solid gas generating device for infrared bait |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393186.2U CN211855065U (en) | 2020-03-25 | 2020-03-25 | Solid gas generating device for infrared bait |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211855065U true CN211855065U (en) | 2020-11-03 |
Family
ID=73137765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020393186.2U Active CN211855065U (en) | 2020-03-25 | 2020-03-25 | Solid gas generating device for infrared bait |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211855065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238311A (en) * | 2020-03-25 | 2020-06-05 | 河南羽流智能科技有限公司 | Solid gas generating device for infrared bait |
-
2020
- 2020-03-25 CN CN202020393186.2U patent/CN211855065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238311A (en) * | 2020-03-25 | 2020-06-05 | 河南羽流智能科技有限公司 | Solid gas generating device for infrared bait |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3467271B2 (en) | Double wall airbag | |
| US5273312A (en) | Hybrid inflator having movable piston for releasing pressurized gas and conveying combustion products for ignition of secondary ignition material | |
| US5242194A (en) | Air bag inflator | |
| KR100392750B1 (en) | Vehicle occupant restraint and deployment method of the restraint | |
| US5351989A (en) | Inflator assembly | |
| KR20010049375A (en) | Hybrid generator with perforating pillar | |
| CN211855065U (en) | Solid gas generating device for infrared bait | |
| JPH10297416A (en) | Gas generator for air bag device and air bag inflating method | |
| CN102292244B (en) | Gas generator for airbag device | |
| WO2023174313A1 (en) | Integral ignition structure and compressed-gas-type fuel gas generator | |
| KR970001743B1 (en) | Air-bag with inflatable ribs | |
| US20060202455A1 (en) | Gas generator | |
| EP1927519B1 (en) | Inflator | |
| CN111750270B (en) | Compressed gas automatic quick release device and lifesaving equipment using same | |
| CN111238311A (en) | Solid gas generating device for infrared bait | |
| WO2024108832A1 (en) | Gas generator having automatic pressure adjustment function | |
| JP2018176808A (en) | Gas generator | |
| CN109177912B (en) | One-way valve type multi-stage gas generator | |
| CN207946020U (en) | A kind of assembly power self-eject launch device | |
| CN206049594U (en) | A kind of cold gas generator | |
| CN215851120U (en) | Ceiling column-shaped mixed type safety airbag gas generator structure | |
| CN115042738A (en) | Tubular mixed gas generator for automobile safety air bag | |
| CN107957209A (en) | A kind of assembly power self-eject launch device | |
| CN110371074B (en) | Special combustion chamber for gas generator | |
| JP2002337655A (en) | Gas generator for air bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |