Unlock instant, AI-driven research and patent intelligence for your innovation.

Solid Rocket Motor Scale-down Experimental Device with Alumina Droplet Collection Function

A technology of solid rockets and scaled experiments, applied in rocket engine devices, machines/engines, jet propulsion devices, etc., can solve problems such as inability to collect particles

Active Publication Date: 2017-07-07
NORTHWESTERN POLYTECHNICAL UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a solid rocket motor scaling experimental device with the function of collecting alumina droplets, so as to solve the problem that the prior art cannot collect particles at different positions in the flow channel section of the engine working engineering

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
  • Solid Rocket Motor Scale-down Experimental Device with Alumina Droplet Collection Function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] In the experiment, the engine as a whole figure 1 Assembled, the material of the rigid shell of the engine combustion chamber 2 shell, the convergence section 4, and the test section 5 are all 45# steel. Each connecting part in the engine adopts end-face sealing, and the bolts and nuts are composed of GB / T5781-2000 hexagon head bolts-full bolt C grade M12 1=100 and GB / T41-2000 hexagon head nuts-C grade M12.

[0036] The throat diameter of the propellant 1, the nozzle 9 is determined by the experimental conditions; the casing of the combustion chamber 2 is 150mm long, 220mm outer diameter, 200mm inner diameter, 20 equidistant openings on the end flange, 13mm diameter; Convergent section 4 front and rear There are 20 holes and 12 holes on the ends of the test section 5, each with a diameter of 13mm; 12 holes at the front and rear of the test section 5, the hole diameter is also 13mm, the collection tank 8 and the electric explosion valve are connected to the bottom of the te...

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

No PUM Login to View More

Abstract

The invention discloses a solid rocket engine contractible-scaled experimental device with the function of collecting alumina droplets. The solid rocket engine contractible-scaled experimental device with the function of collecting the alumina droplets is characterized by comprising a combustion chamber, wherein one end of the combustion chamber is sealed; in addition, the interior of the combustion chamber is used for placing a propellant; a convergent section, a test section and a jet pipe are sequentially arranged in the other end of the combustion chamber in a penetrating manner; the jet pipe communicates with the external; a plurality of alumina collection devices are arranged on the test section at intervals with an equal distance in an air flow direction; each alumina collection device is composed of a collection window formed in the outer wall of the test section; each collection window is provided with a sealed collection tank in a manner of communicating with the external; and a valve used for controlling communication or disconnection between each collection window and the test section is formed on each collection window. According to the solid rocket engine contractible-scaled experimental device, the problem in the prior art that particles at different positions in a flow passage section in the working engineering of an engine cannot be collected is solved.

Description

Technical field [0001] The invention belongs to the technical field of solid rocket motors, and relates to a solid rocket motor scale-down experimental device with alumina droplet collection function. Background technique [0002] From the ablation experiment of the insulation layer, the state parameters of the condensed phase particles (particle concentration, particle size, distribution) are important factors that affect the ablation of the insulation material. The size of the particle size can directly affect the ablation of the insulation material. For example, the large-size particles have a strong ability to ablate the carbonized layer, while the small-size particles have relatively weak ablation. In addition, there is a big difference in the flowability of particles with different sizes, resulting in a certain correlation between the particle size and the particle concentration on the surface of the insulating material specimen, which indirectly affects the ablation of the...

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): F02K9/96
CPCF02K9/96
Inventor 刘洋关轶文娄永春李江惠昆
Owner NORTHWESTERN POLYTECHNICAL UNIV