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Gel propellant single droplet secondary crushing experimental device

A gel propellant and secondary crushing technology, applied in measuring devices, material inspection products, material thermal analysis, etc., can solve problems such as inconvenient operation and complicated equipment, and achieve reduced interference, good fluidity, simple and reliable structure Effect

Inactive Publication Date: 2017-11-14
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the equipment required by this method is more complicated and inconvenient to operate

Method used

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  • Gel propellant single droplet secondary crushing experimental device
  • Gel propellant single droplet secondary crushing experimental device
  • Gel propellant single droplet secondary crushing experimental device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] combine Figure 1 to Figure 5 :

[0019] A gel propellant single droplet secondary crushing experimental device of the present invention includes a bracket system, a droplet generator and a nozzle mechanism, wherein the bracket system includes a bottom plate 1, a lower bracket 4, a vertical bracket 6 and a droplet generator The support 9, the lower support 4 and the bottom plate 1 are slidably matched in the horizontal direction, the vertical support 6 is slidably matched with the lower support 4 in the horizontal direction, and the sliding direction is perpendicular to the sliding direction between the lower support 4 and the bottom plate 1, and the liquid droplets The generator bracket 9 is slidably matched with the vertical bracket 6 in the vertical direction, and its sliding direction is perpendicular to the sliding direction between the lower bracket 4 and the bottom plate 1 and the sliding direction between the vertical bracket 6 and the lower bracket 4; The gene...

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Abstract

The invention discloses a gelled-propellant single-liquid-drop secondary crushing experimental device.The gelled-propellant single-liquid-drop secondary crushing experimental device comprises a support system, a liquid-drop generator and a spray-pipe mechanism.Free adjusting of the position of the liquid-drop generator in the three-dimensional space can be achieved through the support system, the influence of different incident speeds on the liquid-drop crushing process can be researched, and as liquid drops enter incident flow at a certain speed, the interference of an incident-flow boundary layer in deformation and crushing of the liquid drops can be reduced.The liquid-drop generator heats gel in an inner cylinder through water, the liquidity of a heated gelled propellant is better, yield stress becomes smaller, and the liquid drops are conveniently condensed at a needle head.A layer-flow working condition and a turbulent-flow working condition of air flow can be achieved through a detachable spoiler at an outlet of the spray-pipe mechanism so that the influence of the different air flow states on the liquid-drop crushing process can be researched.

Description

technical field [0001] The invention belongs to the technical field of gel propellant secondary atomization research, in particular to a gel propellant single droplet secondary crushing experimental device. Background technique [0002] Gel propellants have the advantages of convenient transportation and storage, safety, and high efficiency, and are considered to be effective substitutes for traditional liquid propellants. In order to better apply gel propellants to aerospace and military fields, its atomization problem is one of the key technologies that need to be solved urgently. The main fields of application of gel propellants are rockets and ramjets. For liquid engines, the atomization performance of liquid propellants is closely related to the combustion efficiency of the engine, and the same is true for gel propellant engines. Atomization research can not only provide the basis for the optimal design of the engine combustion chamber, but also predict the combustion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/22G01N25/00
CPCG01N25/00G01N33/22
Inventor 孔上峰封锋邓寒玉陈斌彬袁一超龚静芝曹琪刘成浩邹延兵曹钦柳
Owner NANJING UNIV OF SCI & TECH
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