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Pre-breakdown-energy storage discharge rock breaking system based on feedback control

A feedback control and pre-breakdown technology, applied in the automatic control system of drilling, hydroelectric power generation, discharging machinery, etc., can solve the problem of low efficiency of electric pulse rock breaking device

Active Publication Date: 2021-09-10
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the efficiency of the designed electric pulse rock breaking device relatively low

Method used

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  • Pre-breakdown-energy storage discharge rock breaking system based on feedback control
  • Pre-breakdown-energy storage discharge rock breaking system based on feedback control
  • Pre-breakdown-energy storage discharge rock breaking system based on feedback control

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Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a pre-breakdown-energy storage discharge rock-breaking system based on feedback control includes an electrically connected pre-breakdown module 1, a signal detection device and a control discharge module; the pre-breakdown module 1 is used for pre-breakdown A plasma channel is formed inside the medium 9; the signal detection device is used to detect signals of pre-breakdown and charging completion; the control discharge module is used to control high current to be released into the plasma channel.

[0025] Further, the signal detection device includes a first signal detection device 2, a second signal detection device 3, and a third signal detection device 4; the first signal detection device 2 is used to detect the signal that the pre-breakdown is completed; the second signal detection device The second signal detection device 3 and the third signal detection device 4 are used to detect the signal for controlling the completion of charging in...

Embodiment 2

[0029] Such as figure 1 As shown, this embodiment is developed on the basis of the above-mentioned embodiment 1. Specifically, a feedback control-based pre-breakdown-energy storage discharge rock breaking system is disclosed. The energy storage and discharge module includes a first storage The energy module 7 and the second energy storage module 8; the first signal detection device 2, the third signal detection device 4, the feedback control module and the energy storage discharge module form a first discharge cycle subsystem; the first signal detection device 2. The second signal detection device 3. The feedback control module and the energy storage discharge module form a second discharge cycle subsystem; the first discharge cycle subsystem and the second discharge cycle subsystem perform cyclic and alternating charge and discharge to realize the charging and discharging of all The above ion channels perform high current release.

[0030] Such asfigure 1 As shown, this embo...

Embodiment 3

[0035] Such as image 3 As shown, this embodiment is developed on the basis of the above embodiments. In the present invention, a pre-breakdown-energy storage discharge rock-breaking system based on feedback control is suitable for electric rock breaking and hydraulic rock breaking. The high-voltage electric pulse rock-breaking tool based on the basic rock-breaking principle, the discharge electrode arrangement of the high-voltage electric pulse rock-breaking tool includes "needle-needle" side-by-side type, "needle-needle" row type, and "needle-plate" type , "plate-plate" type and "coaxial type". Such as Figure 4 As shown, this embodiment is described in the "needle-needle" side-by-side electrode arrangement.

[0036] Specifically, combine image 3 As shown, this embodiment discloses a circuit structure based on a feedback control-based pre-breakdown-energy storage discharge rock-breaking system. This circuit consists of a high-voltage pulse generator 10, a high-voltage el...

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Abstract

The invention discloses a pre-breakdown-energy storage discharge rock breaking system based on feedback control. The pre-breakdown-energy storage discharge rock breaking system comprises a pre-breakdown module, a signal detection device and a discharge control module which are electrically connected. The pre-breakdown module is used for pre-breakdown of the interior of a medium to form a plasma channel; the signal detection device is used for detecting pre-breakdown and charging completion signals; and the discharge control module is used for controlling high current to be released into the plasma channel, the plasma channel expands, and the rock is broken under the action of high energy. A current high-voltage electric pulse rock breaking circuit structure is optimized, graded discharge is achieved for the pre-breakdown stage and the expansion rock breaking stage of the plasma channel, compared with conventional electric pulse rock breaking, a pre-breakdown stage signal detection and feedback module is additionally arranged, an energy storage circuit structure is optimized, alternate circulation discharge is achieved, and the rock breaking efficiency and the energy consumption efficiency are improved.

Description

technical field [0001] The invention relates to the field of electric discharge rock breaking, in particular to a feedback control-based pre-breakdown-energy storage electric discharge rock breaking system. Background technique [0002] The essence of drilling is to break rock. Adopting different rock-breaking technologies has a huge impact on drilling efficiency and economic benefits. Conventional mechanical drilling methods are limited by their drilling speed, and sometimes cannot meet the drilling requirements. With the pursuit of blasting controllable, energy saving and environmentally friendly crushing technology, some new drilling methods reflect their unique advantages. , To a certain extent, it solves the common problems of slow speed, long period and high cost in the drilling process. [0003] These new rock crushing methods are mainly divided into two categories, one is to use mechanical energy to crush rocks, including ultrasonic waves, ejection shock waves, hig...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B44/00E21C37/18
CPCE21B7/00E21B44/00E21C37/18Y02E10/20
Inventor 祝效华陈梦秋罗云旭刘伟吉
Owner SOUTHWEST PETROLEUM UNIV