CN86100451B - Solid gas burning generating agent - Google Patents
Solid gas burning generating agent Download PDFInfo
- Publication number
- CN86100451B CN86100451B CN86100451A CN86100451A CN86100451B CN 86100451 B CN86100451 B CN 86100451B CN 86100451 A CN86100451 A CN 86100451A CN 86100451 A CN86100451 A CN 86100451A CN 86100451 B CN86100451 B CN 86100451B
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- China
- Prior art keywords
- solid fuel
- generating agent
- fuel gas
- gas generating
- combustion
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Abstract
The present invention relates to a solid fuel used in a power device, which particularly relates to a novel solid fuel gas generating agent which has the little response of burning rate pressure. The solid fuel gas generating agent contains ballistic improving agents prepared from nitrocellulose, nitrate of non-nitroglycerine, glycero triacetate and iron family elements, and center locating agents. The solid fuel gas generating agent has the performances of low combustion temperature, little combustion pressure index, no corrosiveness ingredients of hydrogen halide in combustion products, good physical chemistry stability, no sensitivity for humidity, etc. The solid fuel gas generating agent can be used for driving various power devices. The solid fuel gas generating agent can widely used in airplanes, missiles and torpedoes. The solid fuel gas generating agent can also be used in civil departments, such as underwater salvage departments, lifesaving equipment departments, etc.
Description
The present invention relates to a kind of solid fuel that supplies power set to use, the novel solid gas generator propellant that particularly a kind of burning is little.
Existing solid gas propellant is as there being two big classes as described in U.S. JSpacecraftvol.4 NO.11.1967 one literary composition: a class be with macromolecular material as tackiness agent double as fuel, cooperate the compound gas generator propellant of one or more inorganic or organic crystals as oxygenant.Wherein typical a kind of is oxygenant with ammonium nitrate.This type of propellant has lower fuel gas temperature, no chemical corrosion sexual element in the combustion gas.But its combustion pressure index is higher, and combustion is fast on the low side, and is easy to moisture absorption, and brilliant the change arranged in reserve temperature range, and using with storage to have strict moistureproof condition.Another kind of typical case is United States Patent (USP) U.S.P.3 in this type of, and 193,421 1965 what propose is oxygenant with ammonium perchlorate, and the dihydroxyl glyoxime is the compound gas generator propellant of cooling agent.This type of propellant also can obtain lower fuel gas temperature, and water absorbability is little, does not have brilliant the change.But contain HCl corrodibility composition in its combustion gas, heat decomposition temperature is on the low side 408 ° K(135 ℃), burning rate pressure exponent is higher, cost is also higher.Another big class is to be the double-basis type gas generator propellant of base with soluble cotton-nitroglycerine.This type of gas generator propellant physical chemistry good security, insensitive to humidity, combustion speed is higher, and pressure index is lower, non-corrosiveness composition in the products of combustion.But its temperature of combustion is higher generally at 1873 ° K(1600 ℃) more than, excessively reduce temperature of combustion and can cause incomplete combustion, produce black smoke.
The purpose of this invention is to provide a kind of advantage that had both had compound gas generator propellant, can reduce the combustion temperature; The combustion pressure index that has double-basis type gas generator propellant again is lower, and physicochemical property are stable, and are insensitive to humidity, the novel solid gas generator propellant of non-corrosiveness composition in the combustion gas.
The invention is characterized in: its weight proportion contains soluble cotton (nitrogen content 11.8-13.2%) 60-80%; The nitric ether that contains non-nitroglycerine class is as N-nitro diethanolamine dinitrate (O
2NN(CH
2CH
2ONO
2)
2), triethylene glycol dinitrate (O
2NOC
2H
4OC
2H
4OC
2H
4ONO
2), diethylent glycol dinitrate (O
2NOC
2H
4OC
2H
4ONO
2), as energetic plasticiser, content is 8-15%; Contain the cooling softening agent of Vanay as rich oxygen content, content is 10-20%; Contain by the metal powder of iron family element ting (Ni, Fe, Co), oxide compound (Ni
2O
3, Fe
2O
3, Co
2O
3) in oxide compound (MgO), the oxyhydroxide (Mg(OH) of one or more and magnesium
2), carbonate (MgCO
3), subcarbonate (MgCO
3Mg(OH)
2) in the ballistic-modifiers of one or more compositions, total content is 1-5%, optimum content is 1.0-2.5%, iron group compound in the optimum content and magnesium compound weight ratio are 2: 1; Contain centralite 1-3% and technology annexation.But as a kind of solid fuel of self-sustaining burning, one of performance that it is important is the relation of its combustionvelocity and combustion pressure, generally can be expressed as: r=AP
nRelation, wherein r is the burning linear velocity, and P is a burning situation pressure, and A is a scale-up factor, and n is the pressure index of combustion speed.Theory is pointed out: pressure index n is significant to keeping flameholding.Have only n＜1 just can design the combustion unit that stable burning pressure was discharged and had in combustion gas.Also point out: pressure index is littler, and the combustionvelocity variable effect that is stressed is lower, combustion stability better, the factor of assurance of the device of designing can be obtained lower, thereby can improve the usefulness of device.Another key property of gas generator propellant is that the temperature of combustion gas can not be too high.Because the ferrous metal fusing point is about 1673 ° K(1300 ℃) about, as fuel gas temperature above 1473 ° K(1200 ℃), working hour is long slightly, then the hot strength with appliance arrangements such as the pipeline of contacts fuel gas, valves descends, be easy to destroy, need to adopt special heat-stable material, this will make technical generation difficulty and raising expense.The chemical corrosivity of combustion gas is low, also has same meaning.With the soluble cotton is the propellant of base, only contains four kinds of elements of CHON, non-halogen hydrogen class corrodibility composition in its combustion gas.Energetic plasticiser commonly used is a nitroglycerine, this component energy height, temperature of combustion is also high about 4573 ° K(4300 ℃), add it and just be difficult to realize later low combustion temperature, thus should avoid introducing, and the lower better component of physical and chemical performance of the temperature of combustion in generation.
Whether fully the propellant burning, relevant with the ratio of oxygen level, when introducing cooling agent for the reduction temperature of combustion, should consider the high component of oxygen level.For the combustion pressure index is reduced, need to introduce suitable ballistic-modifiers.
Novel solid gas generator propellant of the present invention has: temperature of combustion is at 1473 ° K(1200 ℃) below, the combustion pressure index is low, non-halogen hydrogen class corrodibility composition in the products of combustion, and the physical chemistry good security is to performance such as humidity is insensitive.It compares the ratio with higher effective quality and installation weight with other energy such as high pressure air storage, chemical cell, so performance is more superior.Novel solid gas generator propellant of the present invention, after burning, can produce the only high gas of big amount temperature, can also can open valve, promote piston, fill the exercises such as air bag or inflatable drainage of rising in order to drive various power set such as turbine, hydro-pump, generator, pressurized strut.It is widely used in also can be used for civilian departments such as underwater salvage, sea rescue on the aircraft, guided missile, torpedo of Air Branch.
Performance of the present invention is compared with the prior art sees attached list.
Subordinate list: performance of the present invention is compared with the prior art table:
The embodiment of novel solid gas generator propellant of the present invention is as follows:
Most preferred embodiment 1:
In 35 kg of water, the adding nitrogen content is 12.0% 4.76 kilograms of nitrocottons (66.7%), stir and add 0.91 kilogram of dinitrate of N-nitro diethanolamine (12.8%) down successively, 1.26 kilograms of Vanays (17.7%), 0.07 kilogram of centralite (1.0%), 0.07 kilogram of nickel powder (1.0%), 0.035 kilogram of magnesium basic carbonate (0.5%), 0.014 kilogram in Vaseline (0.2%), 0.14 kilogram of Zinc Stearate (0.2%), centrifugal then expelling water.Spice behind the expelling water is placed in the twin-screw extruder, 80-90 ℃ of following roll-in, with further expelling water, gel.After the spice gel, extrusion machine is put in granulation, by the mould companding shaping.
The performance of the gas generator propellant of this Example formulations is as follows:
Temperature of combustion (° K): 1417.6
Specific impulse (ratio of expansion 70: 1): (kg-sec/kg) 178.3
Combustion gas molecular-weight average: (g/g Mol) 21.04
Combustion gas component: (Mol/kg)
Co 22.06
Co
23.34
H
213.69
N
23.94
H
2O 4.58
Solid residue content (%): 1.48
Combustionvelocity: 3.12mm/sec(90kg/cm
2);
3.01mm/sec（70kg/cm
2）;
2.65mm/sec（50kg/cm
2）。
Burning rate pressure exponent: 0.143(70-90kg/cm
2)
Burning rate temperature coefficient: 0.399(%1/ ℃)
（70kg/cm
2，20℃）
Iterative method chemical stability experiment in tieing up also: above 100 hours
Impact sensitivity: rate of explosion 0%(2 kilogram drops hammer, 25 kilograms of drop heights)
Friction sensitivity: rate of explosion 0%(96 ° pivot angle, 50kg/cm
2)
Intensity: ultimate compression strength 1072kg/cm
2, rate of compression 84.5%,
Work of rupture 469kg-cm(20 ℃)
Heat decomposition temperature (° K): 477
Proportion (g/cm
3): 1.53
Naturally store 5 years no partial crystallization phenomenons.
Most preferred embodiment 2:
Soluble cotton (nitrogen content 12.0%) 67.0%, N-nitro diethanolamine dinitrate 12.8%, Vanay 17.7%, centralite 1.0% nickel powder 1.0%, magnesium oxide 0.5%.Be pressed into diameter 112mm, length 365mm powder column, in the combustion chamber, 74kg/cm
2Smooth combustion is 85 seconds under the pressure, and combustion speed is 4.29mm/sec, 1452 ° of K of temperature of combustion, pressure index 0.15(60-100kg/cm
2).
Example 3:
Soluble cotton (nitrogen content 12.0%) 62.6%, N-nitro diethanolamine dinitrate 14.7%, Vanay 17.9%, centralite 1%, iron powder 3%, magnesium oxide 1%.
Temperature of combustion: 1402 ° of K.Combustion speed is: 5.22mm/sec(104kg/cm
2), 4.96mm/sec(81kg/cm
2), 3.96mm/sec(70kg/cm
2), 4.57mm/sec(49kg/cm
2), 4.57mm/sec(40kg/cm
2)
Average burning rate pressure exponent: 0.139(40-104kg/cm
2)
Example 4:
Soluble cotton (nitrogen content 12.0%) 62.6%, N-nitro diethanolamine dinitrate 14.7%, Vanay 17.9%, centralite 1%, cobalt powder 3%, magnesium oxide 1%.
Temperature of combustion: 1410 ° of K.Combustion speed is 5.26mm/sec(100kg/cm
2), 4.20mm/sec(80kg/cm
2), 5.21mm/sec(52kg/cm
2)
Average burning rate pressure exponent: 0.015(52-100kg/cm
2)
Claims (9)
1, a kind of solid fuel that supplies power set to use, the novel solid gas generator propellant that particularly a kind of burning is little is characterized in that containing (weight %):
60-80 soluble cotton (nitrogen content 11.3-13.2%);
The nitric ether of the non-nitroglycerine class of 8-15;
The 10-20 Vanay;
The 1-5 ballistic-modifiers;
The 1-3 centralite.
2, novel solid gas generator propellant according to claim 1, it is characterized in that ballistic-modifiers be by the metal powder of iron family element ting (Ni, Fe, Co), oxide compound (Ni
2O
3, Fe
2O
3, Co
2O
3) in oxide compound (MgO) oxyhydroxide (Mg(OH) of one or more and magnesium
2), carbonate (MgCo
3), subcarbonate (MgCo
3Mg(OH)
2) in one or more compositions.
3, according to claim 1 and 2 described novel solid gas generator propellants, the optimum content that it is characterized in that ballistic-modifiers is 1.0-2.5(weight %), wherein iron group compound and magnesium compound weight ratio are 2: 1.
4, novel solid gas generator propellant according to claim 1 is characterized in that the nitric ether of non-nitroglycerine class, is to adopt N-nitro diethanolamine dinitrate, triethylene glycol dinitrate, diethylent glycol dinitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86100451A CN86100451B (en) | 1986-01-20 | 1986-01-20 | Solid gas burning generating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86100451A CN86100451B (en) | 1986-01-20 | 1986-01-20 | Solid gas burning generating agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86100451A CN86100451A (en) | 1987-08-05 |
| CN86100451B true CN86100451B (en) | 1988-03-09 |
Family
ID=4801022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86100451A Expired CN86100451B (en) | 1986-01-20 | 1986-01-20 | Solid gas burning generating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86100451B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448621C (en) * | 2003-05-24 | 2009-01-07 | 希尔蒂股份公司 | Propellant charge batch in particular for bolt setting tools |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311827A (en) * | 2017-07-24 | 2017-11-03 | 浙江海洋大学 | A kind of solid propellant and its preparation method and application |
| CN116283455B (en) * | 2023-04-13 | 2024-03-08 | 西北大学 | Composite propellant energetic particle with low burning rate temperature coefficient and preparation method thereof |
-
1986
- 1986-01-20 CN CN86100451A patent/CN86100451B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448621C (en) * | 2003-05-24 | 2009-01-07 | 希尔蒂股份公司 | Propellant charge batch in particular for bolt setting tools |
Also Published As
| Publication number | Publication date |
|---|---|
| CN86100451A (en) | 1987-08-05 |
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