CN108562196B - Dual-working-condition gas generating agent grain - Google Patents
Dual-working-condition gas generating agent grain Download PDFInfo
- Publication number
- CN108562196B CN108562196B CN201810120937.0A CN201810120937A CN108562196B CN 108562196 B CN108562196 B CN 108562196B CN 201810120937 A CN201810120937 A CN 201810120937A CN 108562196 B CN108562196 B CN 108562196B
- Authority
- CN
- China
- Prior art keywords
- generating agent
- gas generating
- combustion
- burning
- dual
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
- F42B33/0207—Processes for loading or filling propulsive or explosive charges in containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
- F42B33/025—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges by compacting
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention relates to a dual-working-condition fuel gas generating agent grain, wherein a fuel gas generating agent is arranged in a heat insulation sleeve, a high-combustion-speed grain is arranged in the center of the fuel gas generating agent, an inner ring combustion-supporting groove and an outer ring combustion-supporting groove are arranged on the surface of the fuel gas generating agent, and a lining layer is arranged at the contact part of the side surface of the fuel gas generating agent and the heat insulation sleeve. The dual-working-condition gas generating agent grain starts to burn from the surface of the gas generating agent, the surface of the combustion-supporting groove and the surface of the high-burning-rate grain at the same time, the burning surface is in a slow reduction trend, and the duration of the trend is longer. The invention is used for missile servo power devices, and has the advantages of low combustion temperature, long combustion surface slowing trend duration, multi-working-condition pressure of multi-stage charging and the like by single combustion rate charging.
Description
Technical Field
The invention relates to a dual-working-condition gas propellant grain for providing working energy for a missile weapon type servo power device.
Background
At present, the servo power forms of domestic and foreign missiles mainly comprise: compressed air type, gas type, and electric type. Among them, the compressed air type and electric type equipments are too large in volume to be transported and launched flexibly. The volume of the gas type device is far smaller than that of the compressed air type device, the application range is wide, and the gas type device is a main power form adopted by missile servo devices of all countries at present. In order to realize accurate control of missile thrust, harsh requirements are put forward on a servo system under the conditions of limited space and fixed spray pipes, the low gas temperature and high performance reliability are realized, the servo-type explosive columns are required to present different working pressures at different time, and the pressure conversion time of the explosive columns is not less than 15 s. In order to solve the problem and improve the performance of missile weapons, a dual-working-condition gas propellant grain suitable for a servo power device is specially developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a gas generating agent grain which has low gas temperature, simple production process and long duration of combustion surface slowing trend and can realize multi-working-condition pressure by single combustion speed charging.
The purpose of the invention is realized by the following technical scheme: a fuel column of a dual-working-condition fuel gas generating agent is characterized in that the fuel gas generating agent is arranged in a heat insulation sleeve, a high-combustion-speed fuel strip is arranged in the center of the fuel gas generating agent, an inner ring combustion-supporting groove and an outer ring combustion-supporting groove are formed in the surface of the fuel gas generating agent, and a lining layer is arranged at the contact position of the side face of the fuel gas generating agent and the heat insulation sleeve.
Further, the central axis of the high-combustion-speed explosive strip and the central axis of the gas generating agent are positioned on the same straight line.
Furthermore, the combustion-supporting groove of the inner ring and the combustion-supporting groove of the outer ring are concentrically arranged.
Further, the lining layer is made of an adhesive material.
The bonding material is polyurethane material or epoxy material.
Further, the heat insulation sleeve is made of rubber elastic materials.
The rubber elastic material is a polyurethane elastic material or a polybutadiene elastic material or a polyester elastic material or a polyamide elastic material.
Further, the ratio of the length to the diameter of the high-combustion-rate explosive strip ranges from 10 to 11.25.
Furthermore, the burning rate of the high burning rate medicine strip is adjustable.
The invention mainly realizes the charging of the small-diameter grains by adopting a vacuum pouring mode. The gas generating agent is a low combustion temperature gas generating agent.
Under the existing end face explosive type, single burning-rate explosive charging is adopted, and high-working-condition section explosive charging is replaced by a high-burning-rate explosive strip core inserting process method, so that the characteristic of an inner trajectory curve of two-stage pressure intensity and slow descending under high and low working conditions is realized.
The high-burning-rate explosive strip is cylindrical, a fuel gas generating agent is adhered to the inner surface of the heat-insulating sleeve by using the lining, the explosive column starts to burn from the surface of the fuel gas generating agent, the surface of the outer ring combustion-supporting groove, the surface of the inner ring combustion-supporting groove and the surface of the high-burning-rate explosive strip at the same time, the burning surface is in a slow reduction trend and has long duration, and the pressure formed by generated gas provides energy for a servo power device. When the ratio of the length to the diameter of the high-burning-rate explosive strip ranges from 10 to 11.25, the pressure has a large adjustable range and can adapt to a gas generator with transition time.
In the combustion process, the combustion surface slow-down trend lasts for a long time, so that the working pressure is slowly reduced, and the pressure in the gas generator is ensured to be slowly reduced. The pressure change in the combustion process can be adjusted through the diameter of the high-combustion-speed medicinal strips, the length of the high-combustion-speed medicinal strips, the combustion speed of the high-combustion-speed medicinal strips and the combustion speed of the gas generating agent, so that the pressure change rule in the combustion process meets the requirement. The gas generating agent contains a cooling agent, and the combustion temperature of the invention can reach the target requirement by adjusting the content of the cooling agent.
The assembly process sequence of the invention is as follows: 1. vacuum casting the high-burning-rate slurry in a special mould, curing at a certain temperature for a certain time, taking out and demoulding; 2. sand blasting, cleaning and drying the inner surface of the processed heat insulation sleeve; 3. uniformly coating the lining on the inner surface of the heat-insulating sleeve; 4. after the fuel gas generating agent slurry is poured into the heat insulation sleeve, high-burning-rate fuel strips are placed into the poured fuel gas generating agent by using a positioning tool, then the fuel gas generating agent slurry is solidified for a certain time at a certain temperature, and the dual-working-condition fuel gas generating agent column is taken out and cooled; 5. two combustion-supporting grooves are shaped on the surface of the dual-working-condition gas generating agent grain through mechanical processing.
The invention has reasonable structure and long duration of combustion surface slowing trend, and can ensure that the explosive column maintains a stable combustion state under a high-pressure and high-overload state.
Compared with the prior art, the invention has the following advantages:
1. the invention realizes the multi-working-condition pressure of multi-stage charging through single-burning-rate charging, is suitable for double-working-condition work and has the characteristics of long combustion area slow-down trend duration.
2. The working pressure of the invention can be adjusted by adjusting the burning speed of the gas generating agent.
3. The invention can adjust the burning speed of the high burning speed explosive strip and can adjust the transition time of high and low working conditions.
4. The invention can adjust the length of the high-burning-rate explosive strip to adjust the transition time of high and low working conditions.
5. The invention can adjust the transition time of high and low working conditions by adjusting the diameter of the high combustion speed explosive strip.
6. The gas temperature of the invention is low, the whole grain of the invention is cylindrical, one end is plane, and the other end is arc-shaped.
7. The invention has the advantages of low solid particle content generated by combustion and clean fuel gas.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1-insulation sleeve; 2-a lining layer; 3-a gas generating agent; 4-high burning speed medicated strip; 5-an inner ring combustion-supporting groove; 6-outer ring combustion-supporting groove.
Detailed Description
An embodiment of the dual condition gas generant grain in accordance with the invention will now be described with reference to the accompanying drawings.
Referring to fig. 1, a dual-working condition gas generating agent grain, a gas generating agent 3 is arranged in a heat insulation sleeve 1, a high combustion speed grain 4 is arranged in the center of the gas generating agent 3, an inner ring combustion-supporting groove 5 and an outer ring combustion-supporting groove 6 are arranged on the surface of the gas generating agent 3, and a lining layer 2 is arranged at the contact position of the side surface of the gas generating agent 3 and the heat insulation sleeve 1.
In the embodiment, the gas generating agent 3 is poured into the heat-insulating sleeve 1, the high-burning-rate medicine strips 4 are placed in the gas generating agent 3, and the central axes of the high-burning-rate medicine strips 4 and the central axis of the gas generating agent 3 are positioned on the same straight line. The surface of the gas generating agent is provided with an inner ring combustion-supporting groove 5 and an outer ring combustion-supporting groove 6, and the inner ring combustion-supporting groove and the outer ring combustion-supporting groove are concentrically arranged. The lining layer 2 is evenly coated on the inner surface of the heat insulation sleeve 1.
In this embodiment, the liner layer is an adhesive material. The bonding material is polyurethane material or epoxy material.
In this embodiment, the thermal insulation jacket is a rubber elastic material. The rubber elastic material is a polyurethane elastic material or a polybutadiene elastic material or a polyester elastic material or a polyamide elastic material.
In this embodiment, the burning rate of the high burning rate medicated strip is adjustable.
The high-burning-rate medicine strip is cylindrical, the high-burning-rate medicine strip is completely covered by the fuel gas generating agent except the end face, the fuel gas generating agent is adhered to the inner surface of the heat-insulating sleeve by using the lining, the medicine column starts to burn from the surface of the fuel gas generating agent, the surface of the outer ring combustion-supporting groove, the surface of the inner ring combustion-supporting groove and the surface of the high-burning-rate medicine strip at the same time, the burning surface is in a slow reduction trend and has long duration, and the pressure formed by the generated gas provides energy for the servo power device. When the ratio of the length to the diameter of the high-burning-rate explosive strip ranges from 10 to 11.25, the pressure has a large adjustable range and can adapt to a gas generator with transition time.
The gas generating agent 3 and the high combustion speed explosive strips 4 can form the explosive column by means of casting. The formula of the gas generating agent contains a cooling agent, the cooling agent has the function of reducing the combustion temperature, and the combustion temperature of the explosive column is reduced by reducing the content of the cooling agent in the formula of the gas generating agent, so that the temperature of the gas in the gas generator reaches the use requirement. The burning speed of the formula of the gas generating agent and the burning speed of the high-burning-speed medicinal strips can be regulated, and the working pressure of the high-burning-speed medicinal strip can be regulated by regulating the burning speed of the gas generating agent, the length of the high-burning-speed medicinal strips and the diameter of the high-burning-speed medicinal strips, so that the pressure change rule of the gas generator can be regulated.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and the related scope of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A dual-working condition fuel gas generating agent grain is characterized in that: the gas generating agent (3) is arranged in the heat insulation sleeve (1), a high-burning-rate medicine strip (4) is arranged in the center of the gas generating agent (3), an inner-ring combustion-supporting groove (5) and an outer-ring combustion-supporting groove (6) are arranged on the surface of the gas generating agent (3), and a lining layer (2) is arranged at the contact position of the side surface of the gas generating agent (3) and the heat insulation sleeve (1);
the heat insulation sleeve (1) is made of rubber elastic material;
the high-burning-rate medical strip (4) is not communicated with the gas generating agent.
2. The dual condition gas generant grain of claim 1, wherein: the central axis of the high-burning-rate explosive strip (4) and the central axis of the gas generating agent (3) are positioned on the same straight line.
3. The dual condition gas generant grain of claim 1, wherein: the inner ring combustion-supporting groove (5) and the outer ring combustion-supporting groove (6) are arranged concentrically.
4. The dual condition gas generant grain of claim 1, wherein: the lining layer (2) is made of an adhesive material.
5. The dual condition gas generant grain of claim 4, wherein: the bonding material is polyurethane material or epoxy material.
6. The dual condition gas generant grain of claim 1, wherein: the rubber elastic material is a polyurethane elastic material or a polybutadiene elastic material or a polyester elastic material or a polyamide elastic material.
7. The dual condition gas generant grain of claim 1, wherein: the ratio range of the length to the diameter of the high-burning-rate medicinal strip (4) is 10-11.25.
8. The dual condition gas generant grain of claim 1, wherein: the burning speed of the high burning speed medicine strip (4) is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120937.0A CN108562196B (en) | 2018-02-07 | 2018-02-07 | Dual-working-condition gas generating agent grain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120937.0A CN108562196B (en) | 2018-02-07 | 2018-02-07 | Dual-working-condition gas generating agent grain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108562196A CN108562196A (en) | 2018-09-21 |
| CN108562196B true CN108562196B (en) | 2021-04-30 |
Family
ID=63531199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810120937.0A Active CN108562196B (en) | 2018-02-07 | 2018-02-07 | Dual-working-condition gas generating agent grain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108562196B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080528B (en) * | 2010-12-28 | 2016-07-20 | 西安航天化学动力厂 | Controllable multiple-pulse gas generator device |
| US8671839B2 (en) * | 2011-11-04 | 2014-03-18 | Joseph M. Bunczk | Projectile and munition including projectile |
| CN103267453B (en) * | 2013-05-27 | 2015-05-06 | 湖北航天化学技术研究所 | Gas generator propellant grain |
| CN103670797B (en) * | 2013-12-06 | 2015-12-09 | 北京动力机械研究所 | A kind of solid-liquid scramjet engine |
| CN105003355B (en) * | 2015-07-27 | 2017-02-01 | 湖北三江航天江河化工科技有限公司 | Solid rocket engine with high thrust ratio and manufacturing method thereof |
| CN107192307B (en) * | 2016-06-14 | 2019-02-22 | 湖北航天化学技术研究所 | It is a kind of to provide the gas generator of fast aeration for underwater ordnance buoyancy system |
-
2018
- 2018-02-07 CN CN201810120937.0A patent/CN108562196B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108562196A (en) | 2018-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105003355B (en) | Solid rocket engine with high thrust ratio and manufacturing method thereof | |
| CN203847275U (en) | Composite propellant engine | |
| CN111810318B (en) | Single-chamber double-thrust solid rocket engine and rocket | |
| CN103267453B (en) | Gas generator propellant grain | |
| CN109812353B (en) | Thermal protection layer structure of solid rocket engine launching stage combustion chamber and forming process thereof | |
| CN109139301A (en) | A kind of integrated solid rocket motor nozzle of thermal protection structure | |
| CN108562196B (en) | Dual-working-condition gas generating agent grain | |
| CN106903901A (en) | For the Low temperature-resistanflexible flexible joint forming method of solid propellant rocket | |
| CN108644031B (en) | Method for testing ablation rate of heat insulation layer of solid rocket engine | |
| CN109236500A (en) | A kind of Status of Low Cost Solid Rocket Motors powder charge combustion chamber unit and its processing method | |
| CN110985236B (en) | Supporting device and supporting method for end face combustion explosive column of solid rocket engine | |
| CN112834150B (en) | Hybrid drive air gun | |
| CN213354875U (en) | Unmanned aerial vehicle rocket booster of adjustable thrust | |
| CN112282965A (en) | Combined structure of solid rocket engine explosive-charging grain | |
| CN112211747A (en) | Internal structure of rotary acceleration type solid rocket engine | |
| US4004523A (en) | Solid propellant charges | |
| CN208620910U (en) | It is small-sized to kill quick-fried fragment of warhead molding machine | |
| CN105971767A (en) | Solid booster rocket engine | |
| CN108645288A (en) | A kind of Double-working-condition gas generator propellant powder column | |
| CN110792529B (en) | Solid rocket engine front head inner heat insulation layer and forming method thereof | |
| CN205669962U (en) | One is split type moulds shell bullet | |
| CN112520060A (en) | Unmanned aerial vehicle rocket booster | |
| CN113958424B (en) | Rocket boosting engine with inner trajectory curve free of tail warping phenomenon | |
| CN117869109A (en) | Annular cladding powder charging structure in engine tail pipe | |
| CN109736964B (en) | Sliding throwable throat adjustable spray pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Junmin Inventor after: Xing Ruiying Inventor after: Qiao Yingke Inventor after: Yi Qingfeng Inventor after: Wang Wenbo Inventor after: Sun Lanlan Inventor after: Lu Guolin Inventor before: Zhang Junmin Inventor before: Xing Ruiying Inventor before: Qiao Yingke Inventor before: Yi Qingfeng Inventor before: Wang Wenbo Inventor before: Sun Lanlan Inventor before: Lu Guolin |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |