Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of solid-liquid propellant and its preparation method and use method

A technology of propellant and liquid oxidant, applied in offensive equipment, explosive processing equipment, explosives, etc., can solve the problems of short combustion time, small combustion specific impulse, and limited use, and achieve low environmental pollution, high energy, and high safety Effect

Active Publication Date: 2021-10-01
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, solid propellant has a small combustion specific impulse, short combustion time, and difficult thrust adjustment, so its use is also limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of solid-liquid propellant and its preparation method and use method
  • A kind of solid-liquid propellant and its preparation method and use method
  • A kind of solid-liquid propellant and its preparation method and use method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] A kind of preparation method of solid-liquid propellant, described liquid oxidizer: comprises the following steps:

[0040] Step (1), take raw materials according to the following mass percentage content:

[0041] Solid oxidant 5-80%, hydrogen peroxide 20-95%;

[0042] Step (2), adding the solid oxidizing agent described in step (1) into the liquid hydrogen peroxide and stirring to form a uniform solution.

[0043] A kind of preparation method of solid-liquid propellant is characterized in that described solid fuel: comprises the following steps:

[0044] Step (1), take raw materials according to the following mass percentage content:

[0045] 10% to 60% of metal and metal hydride fuel, 0 to 90% of explosive, and 0 to 30% of forming agent.

[0046] Step (2), mixing the raw materials described in step (1) uniformly to make slurry or powder;

[0047] In step (3), the slurry or powder described in step (2) is loaded into a mold, and the required shape is made by heatin...

Embodiment 1

[0078] This embodiment provides a solid-liquid propellant:

[0079] 1. See Table 1 for the formula of solid-liquid propellant:

[0080] Table 1 A kind of solid-liquid propellant formula

[0081] Table 1a Liquid Oxidizers

[0082]

[0083] Table 1b Solid Fuels

[0084]

[0085] Liquid-solid ratio (mass ratio of liquid oxidant to solid fuel): 1.5~2.5:1

[0086] 2. The preparation method of solid-liquid propellant comprises the following steps:

[0087] Step (1): taking raw materials according to the formula in Table 1a;

[0088] Step (2): Add the ADN in the raw material to H 2 o 2 (concentration 90%), stir and mix evenly; obtain liquid oxidant.

[0089] Step (3): taking raw materials according to the formula in Table 1b;

[0090] Step (4): Add plasticizer DOS, Al powder, and curing agent TDI to the adhesive HTPB system at 50-60°C, mix evenly to obtain propellant slurry, vacuum cast, and cure at 50-70°C for 120- After 168 hours, solidified solid fuel can be prepare...

Embodiment 2

[0095] This embodiment provides a solid-liquid propellant:

[0096] 1. See Table 2 for the solid-liquid propellant formula:

[0097] A kind of solid-liquid propellant formula of table 2

[0098] Table 2a Liquid Oxidizers

[0099]

[0100] Table 2b Solid Fuels

[0101]

[0102] Liquid-solid ratio: 1.5~2.5:1

[0103] 2. The preparation method of solid-liquid propellant comprises the following steps:

[0104] Step (1): taking raw materials according to the formula in Table 2a;

[0105] Step (2): Add AP in the raw material to H 2 o 2 (concentration 90%), stir and mix evenly; obtain liquid oxidant.

[0106] Step (3): taking raw materials according to the formula in Table 2b;

[0107] Step (4): Add plasticizer DOS, Al powder, AlH3, and curing agent TDI to the adhesive HTPB system at 30-40°C, mix evenly to obtain propellant slurry, vacuum cast, and cure at 40-45°C After 120-168 hours, a solid fuel that is solidified and molded can be obtained.

[0108] 3. The obtained...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a solid-liquid propellant, a preparation method and a use method thereof, belonging to the technical field of aerospace propulsion. The novel solid-liquid propellant proposed by the present invention is composed of solid fuel and liquid oxidizer. The solid fuel part is an inert substance and does not contain oxidant, so it has higher safety during production, storage, transportation, testing and work.

Description

technical field [0001] The invention relates to a solid-liquid propellant, a preparation method and a use method thereof, and belongs to the technical field of aerospace propulsion. Background technique [0002] With the expansion of national defense technology, space launch and manned space activities, people put forward higher and higher requirements for the power system of aircraft. Good controllability, extremely low cost, higher safety, reliability, reusability, and no pollution to the environment are the development directions of aircraft power systems. [0003] At present, the propellant technology used in aircraft power system is mainly chemical propellant. According to the properties of propellant, chemical propellant can be divided into liquid propellant and solid propellant. Among them, the liquid propellant is generally composed of liquid oxidizer and liquid fuel. It has the characteristics of high specific impulse, long working time, repeated start-up, reliable...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C06B33/12C06B33/14C06B47/02C06B21/00C06D5/10
CPCC06B21/0041C06B21/005C06B21/0058C06B33/12C06B33/14C06B47/02C06D5/10
Inventor 李忠友姚南陈炉洋吴世曦葛志强吉志强周重洋
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com