Study Of The Initiation, Explosion Transfering And Output Character Of Nonel Tube

A new method based on Bruceton method to determine the electrostatic initiation sensitivity of nonel tube was established. The testing instrument is composed of standard electrostatic sensitivity instrument and a needle-like discharge device. The data were processed by Bruceton method and the initiation sensitivity of nonel tube can be indicated by the electrostatic energy when 50% nonel tube initiated (Eo.so). Three types of nonel tube were determined at the experimental condition. When the capacitance are 0.22 u f, the Eo.so of BSI, BSII and PT nonel tube are 0.12J, 0.08J and 0.14 J respectively.The device to determine the laser initiation sensitivity of nonel tube was established by combining impulsion laser generator and quartz optical fiber. The data were processed by Bruceton method and laser initiation sensitivity of nonel tube can be indicated by the laser energy when 50% nonel tube initiated (?.50). Three types of nonel tube were determined. At the experimental condition, the EO.SO of BSI, BSII and PT nonel tube are!85.8 mJ, 135.5mJ and more than 400.OmJ respectively.The electrostatic initiation sensitivity of nonel tube at vacuum state were determined. Experiments showed the electrostatic initiation sensitivity of nonel tube at vacuum state is much less than at air.The temporal temperature of nonel tube flame at its output end were determined by two method: modified sodium line reversal method and two-line spectroscopy method. Experiments show: the temperature of the flame are 2000K-2500K. At the given condition, the temperature doesn't decay with the increasing of flame transferring distance.The spark temperature and spark discharge time of nonel tube igniter under different voltages are determined with two-line spectroscopy temperature measured system. Experiments show that the spark temperature of the given nonel tube igniter are 2100K-2500K under the voltage of 1.6kV to 6.0kV and keep at the same extent: whereas the spark discharge time of the nonel tube igniter are 100 u s -200 U s and increase with the voltage.The assemblage of nonel rube with detonator was imitated and the maximum igniting pressure and igniting impulse of nonel tube varying with the detonation elimination space was determined through dynamic data testing and analytical system. It is shown that with the increase of the detonation elimination volume, the maximum igniting pressure decrease; whereas the igniting impulse increase at certain extent then decrease and there is a maximum at the detonation elimination volume of almost 600mmJ.The apparatus and method suitable for gas sample collection of the detonated noneltube were designed. The volume of toxic gases (carbon oxide and nitrogen oxide) of detonated nonel tube was determined. To BSI, BSII and PT nonel tube, the volume of toxic gas after its detonation are 3.5ml/m 3.4ml/m and 4.2ml/m respectively.The pressure and temperature characteristics of nonel tube in its detonation growth process were studied by means of dynamic data testing and analyzing system and two-line spectroscopy temperature measured system. Experiments show that there is a 30cm~40cm length of detonation growth period for nonel tube when it is initiated by weak excitation. In this period, its maximum igniting pressure and igniting impulse increase with the increasing of propagation distance of detonation.Several influence factor on the detonation propagation reliability of nonel tube-were studied. The permeation of water and mineral oil have vital influence on the detonation propagation reliability of nonel tube but the wet air has no. At vacuum state, nonel tube can detonate stably. The flame transiting hole diameter has vital influence on the igniting peak pressure and igniting impulse.