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Laser Ignition Rotary Experimental Device with Adjustable Speed

A technology of laser ignition and experimental equipment, which is applied in the direction of using combustion for chemical analysis, etc., can solve the problems of unable to meet the experimental requirements, limited functions, and unable to realize ignition, etc., and achieve the effect of simple structure, convenient operation, and time saving

Inactive Publication Date: 2017-02-01
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device cannot realize the ignition of the sample in a rotating state, and its function is limited, so it cannot meet the requirements of further experiments

Method used

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  • Laser Ignition Rotary Experimental Device with Adjustable Speed
  • Laser Ignition Rotary Experimental Device with Adjustable Speed

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] combine figure 1 and figure 2 , a laser ignition rotation experimental device with adjustable speed, including a lens cover 1, a laser lens 2, a combustion chamber housing 3, an air intake pipe 4, a lower box cover 6, a lower box 7, a wiring tube 8, a brushless DC Motor 9, lower box bottom plate 10, bevel gear 11, sealing screw 12, hollow rotating shaft 13, sample rod 14, exhaust pipe 15 and anti-off cover 16. The laser lens 2 is placed in the center of the top of the combustion chamber housing 3. The lens cover 1 presses the laser lens 2 and is fixedly connected with the combustion chamber housing 3 through threads. The laser lens 2, the lens cover 1 and the combustion chamber housing 3 are all sealed There are air intake holes and air outlet holes on the side wall of the combustion chamber housing 3, the intake pipe 4 is connected to the air intake hole, the exhaust pipe 15 is connected to the exhaust port, and the top of the combustion chamber housing 3 is connecte...

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Abstract

The invention discloses a rotating speed adjustable laser ignition rotation experimental device, which comprises a lens cover, a laser lens, a combustion chamber shell, an air inlet pipe, a lower box cover, a lower box, a wiring pipe, a brushless direct current motor, a lower box bottom plate, bevel gears, a sealing screw, a hollow rotating shaft, a sample rod, an exhaust pipe and a drop-proof cap. Before experiment, air tightness detection is firstly carried out on the device provided by the invention to ensure good air tightness, then a solid propellant sample is fixed on the sample rod, the rotating speed of the brushless direct current motor is adjusted, and the rotating speed of the sample rod is calculated according to the transmission ratio of the gears. When the rotating speed of the brushless direct current motor reaches an experiment required value and maintains stable, a laser is turned on, the laser beam irradiates on the solid propellant sample in a rotary state through the laser lens, and the sample ignites. The experimental device provided by the invention has a simple structure and is convenient to operate, and can realize laser ignition experiment of the solid propellant sample under a rotating state.

Description

technical field [0001] The invention belongs to the technique of simulating the ignition of a solid rocket motor, and in particular relates to an adjustable rotational speed laser ignition rotating experimental device. Background technique [0002] In the study of solid propellant ignition and combustion performance, there are many ignition methods. Laser ignition is a safe, reliable, and portable new ignition technology. Its output energy is high and easy to adjust. The energy density can be selected independently of environmental parameters such as initial temperature, pressure, and gas composition, reducing heat loss during the experiment. And non-uniform effect, strong anti-electromagnetic interference ability. [0003] Chinese patent 201410519983.X discloses a high-temperature-resistant and adjustable-voltage laser ignition experimental device, which is used to test the laser ignition and combustion in a static state. In reality, most rockets will fly at a certain spee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/12
Inventor 赖华锦相恒升陈雄李映坤朱亮
Owner NANJING UNIV OF SCI & TECH
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