High-precision delayed initiation system for carbon dioxide fracturing device
Aiming at the problems of low ignition energy and low accuracy of detonation time in traditional detonation systems,a high-precision delayed detonation system applied to carbon dioxide fracturing devices has been developed.The detonation power supply adopts a flyback topology structure to boost and transform the 12V DC voltage provided by the external lithium battery of the detonation system,and store the converted energy in the detonation capacitor.The detonation capacitor can quickly discharge,providing high-density ignition energy for the carbon dioxide cracking device heating device;The use of BP neural network algorithm for precise time correction of the detonation switch action time of the detonation system has improved the detonation time accuracy of the detonation system.The results show that the synchronous detonation time error and sequential detonation time error of the detonation system can be controlled within 1.5 ms,and the discharge current of the detonation power supply can reach more than 35 A,which can meet the accuracy of the detonation time and ignition energy requirements of the carbon dioxide fracturing device for the detonation system,thereby further improving the safety of blasting.
carbon dioxidephase change fracturinginitiation systeminitiation power supplyBP neural network algorithm
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