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Magnetic switch pulse generator for electric pulse rock breaking

A pulse generator and magnetic switch technology, which is applied in the electric pulse generator circuit, the application of electro-magnetic devices to generate pulses, and energy storage components to generate pulses, etc., can solve the problem of increasing the energy consumption efficiency of electric pulses and the efficiency of rock-breaking devices for electric pulses Low-level problems, to achieve the effect of high energy consumption efficiency and strong pertinence in rock breaking

Active Publication Date: 2021-11-23
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, few people currently propose methods to increase the energy consumption efficiency of the electric pulse generator based on the specific mechanism of electric pulse rock breaking, which makes the efficiency of the designed electric pulse rock breaking device relatively low

Method used

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  • Magnetic switch pulse generator for electric pulse rock breaking
  • Magnetic switch pulse generator for electric pulse rock breaking
  • Magnetic switch pulse generator for electric pulse rock breaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a magnetic switch pulse generator for breaking rocks with electric pulses. The pulse generator first opens up a discharge channel in the load (rock or liquid insulating medium) through an instantaneous high-voltage electric pulse, and then adjusts The switch injects part of the stored energy into the opened discharge channel, and finally realizes the efficient crushing of rocks.

[0039] Such as figure 1 As shown, the magnetic switch pulse generator for electric pulse rock breaking includes a power supply, a rectification filter module, an energy storage module, a switch, a trigger circuit, a transformer, a pre-breakdown module, a magnetic switch, a reset circuit and a load. The power supply, rectification and filtering module, and energy storage module are connected end to end in sequence, the switch is connected to the output terminal of the rectification and filtering module, the trigger circuit is connected to the switch, the primary winding...

Embodiment 2

[0043] This embodiment provides a specific implementation circuit of a magnetic switch pulse generator for electric pulse rock breaking, and its circuit principle diagram is as follows image 3 shown, it includes the power supply U 0 , Insulated Gate Bipolar Transistor (IGBT) drive board S, capacitor C 0 、C s 、C 1 、C 2 , pulse transformer TP, inductor L 1 , Saturable inductance L m , load R 0 , Magnetic switch MS 0 and current source I 0 ;Power U 0 Provide charging voltage, capacitor C 0 、C s Constitute the energy storage module, capacitor C 0 As an energy storage capacitor, directly connected to the power supply U 0 On, because the energy storage module stores a large amount of energy, the capacitor C 0 A plurality of capacitors can be connected in parallel to form an energy storage capacitor group. The insulated gate bipolar transistor (IGBT) drive board S constitutes a rectification and filtering module and a switch. The insulated gate bipolar transistor (IGBT)...

Embodiment 3

[0049] This embodiment provides another specific implementation circuit of a magnetic switch pulse generator used for electric pulse rock breaking, and its circuit principle diagram is as follows Figure 4 shown, it includes the power supply U 0 , Insulated Gate Bipolar Transistor (IGBT) drive board S, capacitor C 0 、C s 、C 1 、C 2 , Controllable transformer TR MV1 、TR MV2 , load R 0 , Magnetic switch MS 0 and current source I 0 ; Among them, the power supply U 0 , Insulated Gate Bipolar Transistor (IGBT) drive board S, capacitor C 0 、C s , load R 0 , Magnetic switch MS 0 and current source I 0 The function and connection relationship are the same as those in Embodiment 2, and this embodiment will not be repeated. The difference from Embodiment 2 is that this embodiment provides a new circuit structure of a transformer and a pre-breakdown module. The transformer consists of a controllable transformer TR MV1 and TR MV1 Composition; controllable transformer TR MV1...

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Abstract

The invention discloses a magnetic switch pulse generator for electric pulse rock breaking. The magnetic switch pulse generator comprises a power supply, a rectifying and filtering module, an energy storage module, a switch module, a transformer, a pre-breakdown module, a magnetic switch module and a load, wherein the power supply charges the whole pulse generator, and the rectifying and filtering module rectifies and filters voltage waveforms input by the power supply; the switch module adjusts the discharge frequency of the pulse generator; voltage is boosted through the transformer, the pre-breakdown module continues to boost, and a load channel is punctured by rising edge steepening instantaneous high-pulse voltage; the energy storage module stores energy, and after the pre-breakdown module breaks down the load, the magnetic switch module controls the pre-breakdown module to inject instantaneous pulse energy into the load; and the magnetic switch module has the function of isolating high voltage and high current at the two ends of the load. The system can be flexibly selected and designed according to load types, and has the advantages of high portability, high rock breaking energy consumption efficiency and the like.

Description

technical field [0001] The invention belongs to the field of high-energy electric pulse rock-breaking tools and energy sources, in particular to a magnetic switch pulse generator for electric pulse rock-breaking. Background technique [0002] Rock breaking is an urgent problem to be solved in construction, road, bridge, energy (such as coal, oil and natural gas, etc.) exploration and development projects. At present, the most commonly used rock breaking method is the traditional mechanical rock breaking method, but the cost of the traditional mechanical rock breaking method is high and has a certain impact on the environment, so there is an urgent need to improve the efficiency of rock breaking. With the advancement of social science and technology, some new rock-breaking methods have emerged, such as high-pressure water jet crushing rock, thermal energy crushing rock, fire drilling, electron beam crushing rock, laser rock crushing, thermal melting drilling, thermal energy m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/53H03K3/57H03K3/59E21B7/15
CPCH03K3/53H03K3/57H03K3/59E21B7/15
Inventor 祝效华罗云旭刘伟吉陈梦秋胡海张有建
Owner SOUTHWEST PETROLEUM UNIV
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