A 220V multi-functional excitation controller for gas fracturing rock with multiple channels

Abstract

The present invention discloses a 220V multi-functional excitation controller for gas fracturing rock breaking, which comprises a box body, a box cover, and an operation panel for operating rock breaking excitation control; the box cover is hinged to the box body; a charging circuit board is fixed inside the box body, and on the operation panel, there are installed multi-channel excitation output wiring guide posts, a voltage display meter, a 220V voltage input port for connecting 220V voltage, a keyboard, and a display screen; the bottom surface of the operation panel is fixed with a main control PCBA board, and the main control PCBA board is respectively connected to the excitation output wiring guide posts, the voltage display meter, the 220V voltage input port, the keyboard, and the display screen; the main control PCBA board is connected to the 220V voltage input electrical port; the main control PCBA board can realize multi-channel control and multiple output mode functions.

Description

Technical Field

[0001] The present invention relates to the field of rock-breaking initiation equipment controllers, and in particular, to a multi-functional excitation controller for gas fracturing rock-breaking using a 220V power supply. Background Art

[0002] With the development of mining, building demolition, infrastructure road construction, site leveling, etc., the need to use rock-breaking is increasing; however, rock-breaking itself is a relatively difficult and high-risk industry. Therefore, with the progress of society and the diversity of rock-breaking, the requirements for rock-breaking control are also increasing; whether it is the rock-breaking output control circuit or the functions of rock-breaking, high requirements are imposed. The existing rock-breaking controllers have single functions and are all single-channel controls. It is difficult for a single rock-breaking controller to achieve the effect of multi-channel sequential delay rock-breaking, so the rock-breaking cannot meet the ideal requirements. A rock-breaking controller cannot achieve multi-channel sequential initiation control and has various function excitation initiation controls.

[0003] Therefore, there is still a need to improve and develop the existing technology. Summary of the Invention

[0004] The object of the present invention is to provide a 220V gas fracturing rock-breaking multi-functional excitation controller, aiming to solve the technical problems that the existing rock-breaking excitation controllers cannot achieve multi-channel millisecond-level delay rock-breaking control and the rock-breaking control cannot achieve precise control.

[0005] To achieve the above object, the technical solution of the present invention is: a 220V gas fracturing rock-breaking multi-functional excitation controller, which includes a box body, a box cover, and an operation panel for operating rock-breaking excitation control; the box cover is hinged to the box body; on the operation panel, there are installed multi-channel excitation output connection posts, a voltage display meter, a 220V voltage input port for connecting 220V voltage, a keyboard, a display screen, a mode switch, and a discharge control switch group; the bottom surface of the operation panel is fixed with a main control PCBA board, and the main control PCBA board is respectively connected to the excitation output connection posts, the voltage display meter, the 220V voltage input port, the keyboard, and the display screen; the main control PCBA board is connected to the 220V voltage input port; the main control PCBA board can achieve multi-channel control and various output mode functions.

[0006] The 220V gas fracturing rock-breaking multi-functional excitation controller, wherein, the main control PCBA board includes:

[0007] a CPU for inputting and outputting control signals and processing data,

[0008] a memory module for storing data and connected to the CPU;

[0009] A preset mode input signal source unit for inputting a preset rock-breaking initiation excitation mode, and the preset mode input signal source unit is connected to the CPU;

[0010] An output discharge control unit for outputting a control signal and controlling discharge, and the output discharge control unit is connected to the CPU;

[0011] A key input signal unit for a user to input a signal to the CPU, and the key input signal unit is respectively connected to the CPU and a keyboard;

[0012] A liquid crystal display unit for displaying an output signal, and the liquid crystal display unit is respectively connected to the CPU and a display screen;

[0013] A download program module for inputting a program to the CPU, and the download program module is connected to the CPU;

[0014] And a power supply module, and the power supply module supplies power to the CPU, a memory module, a preset mode input signal source unit, an output discharge control unit, a download program module, and a liquid crystal display unit respectively;

[0015] The output discharge control unit includes a plurality of output discharge control branches, and the output discharge control branches are connected to a 220V power supply, and the excitation output connection post is directly powered by a 220V voltage; a varistor is connected in parallel with a relay in the output discharge control unit, and the varistor is also connected in parallel with a first protection resistor and a protection capacitor connected in series.

[0016] For the 220V gas fracturing rock multi-functional excitation controller, wherein, the main control PCBA board further includes a crystal oscillator unit for controlling time accuracy, and the crystal oscillator unit is connected to the CPU.

[0017] For the 220V gas fracturing rock multi-functional excitation controller, wherein, the main control PCBA board further includes a reset unit for resetting to zero, and the reset unit is connected to the CPU

[0018] For the 220V gas fracturing rock multi-functional excitation controller, wherein, the preset mode input signal source unit includes a plurality of preset signal input branches, a signal output end of the preset signal input branch is connected to the CPU, and the preset signal input branch is connected to a multi-position switch through a wiring port P2.

[0019] For the 220V gas fracturing rock multi-functional excitation controller, wherein, the preset signal input branch includes an indicator lamp for displaying the on / off of the preset mode, a photoelectric coupler, an adjustment resistor assembly for adjusting the supply voltage of the photoelectric coupler, and a second protection resistor for protecting an output signal end of the photoelectric coupler;

[0020] The signal input terminal of the optocoupler is connected in series with an adjustable resistor assembly, and the adjustable resistor assembly is connected to the wiring port P2.

[0021] The power supply module is connected to the output signal terminal of the optocoupler through a second protection resistor.

[0022] The adjustable resistor assembly includes a first adjustable resistor and a second adjustable resistor; the first adjustable resistor is connected in series with an indicator light and then connected in parallel with the second adjustable resistor.

[0023] For the 220V gas fracturing and rock breaking multi-functional excitation controller, wherein, the signal input terminal of the output discharge control branch is connected to the signal output terminal pin of the CPU, and the output terminal of the output and transmission control branch is connected to the excitation output wiring guide post through an output wiring port.

[0024] For the 220V gas fracturing and rock breaking multi-functional excitation controller, wherein, the output discharge control branch includes an optocoupler, a protection resistor assembly for protecting the optocoupler, a triode for signal on / off, a relay, and a first high-voltage diode for preventing backflow.

[0025] The signal input terminal of the optocoupler is connected to the signal output terminal pin of the CPU and is connected to the power supply module through a current-limiting resistor.

[0026] The output terminal of the optocoupler is respectively connected to the protection resistor assembly and the collector of the triode.

[0027] One end of the relay is connected to the power supply module, and the other end of the relay is connected to the base of the triode.

[0028] The relay is connected to the discharge assembly through a switch; the emitter of the triode is grounded.

[0029] The first high-voltage diode is connected in parallel across the relay.

[0030] For the 220V gas fracturing and rock breaking multi-functional excitation controller, wherein, the protection resistor assembly includes a third protection resistor and a fourth protection resistor, and the third protection resistor and the fourth protection resistor are connected in parallel and then connected to the output terminal of the optocoupler.

[0031] For the 220V gas fracturing and rock breaking multi-functional excitation controller, wherein, an energy storage capacitor and a lithium battery are also installed in the box.

[0032] Beneficial effects: The main control PCBA board of the present invention is connected to the 220V voltage input electrical port, so the main control PCBA board can directly control the detonation of the 220V power supply. It is connected to the PCBA board through a keyboard, so that the detonation time can be set. The voltage meter can detect whether the voltage of the detonation reaches; the excitation output wiring guide post can detonate in multiple paths; so it has multiple-path and multi-functional detonation. In addition, the CPU is used to receive and output control signals, and the preset mode input signal source unit is used to input the preset rock-breaking mode and transmit it to the CPU, and then the CPU outputs the control instruction to the output discharge control unit to output signals and control the excitation output wiring guide post to discharge, so as to achieve discharge. The output discharge control unit can effectively isolate the interference of the discharge circuit to the CPU control instruction and can achieve output transmission control; the liquid crystal display unit is used to display the output signal, so that the operator can understand the output control signal and the control instruction; so the present invention can realize the selection and preset of the control mode, and can output control signals according to needs to achieve precise control. The manual input preset mode and control instruction can be realized through the key input signal unit; the control program inside the CPU can be updated and modified through the download program module, so as to be suitable for different rock-breaking control scenarios. In addition, the output discharge control unit of the present invention uses the 220V power supply as the power supply of the detonator controller, so the power supply is simple. The controller does not need a boost circuit and a high-voltage capacitor, and does not need to boost the electric energy of the lithium battery to the high-voltage capacitor, and then connect the high-voltage capacitor to the discharge assembly for discharge. Therefore, the overall circuit is simpler, and the power supply for rock-breaking is convenient, as long as the 220V voltage is connected. Description of the Drawings

[0033] Figure 1 is a perspective view of the present invention.

[0034] Figure 2 is an exploded view of the present invention.

[0035] Figure 3 is a structural block diagram of the first embodiment of the main control PCBA board of the present invention.

[0036] Figure 4 is a connection circuit diagram of the CPU, download program module, crystal oscillator unit and filtering unit of the present invention.

[0037] Figure 5 is a circuit diagram of the reset unit in the present invention.

[0038] Figure 6 is a circuit diagram of the memory module in the present invention.

[0039] Figure 7 is a circuit diagram of the liquid crystal display unit in the present invention.

[0040] Figure 8 is the circuit diagram of the preset mode input signal source unit in the present invention.

[0041] Figure 9 is the circuit diagram of the power supply module in the present invention.

[0042] Figure 10 is a partial circuit diagram of the output discharge control unit in the present invention.

[0043] Figure 11 is a partial circuit diagram of the output discharge control unit in the present invention.

[0044] Figure 12 is the circuit diagram of the output discharge control branch in the present invention.

[0045] Figure 13 is the circuit diagram of the preset signal input branch in the present invention.

[0046] Figure 14 is the circuit diagram of the key input signal unit in the present invention.

[0047] In the figure: 100, the box body; 200, the box cover; 300, the operation panel; 500, the main control PCBA board; 301, the excitation output connection terminal; 302, the voltage display meter; 303, the 220V voltage input port; 304, the keyboard; 305, the display screen; 1, the CPU; 2, the memory module; 3, the preset mode input signal source unit; 4, the output discharge control unit; 5, the key input signal unit; 6, the liquid crystal display unit; 7, the download program module; 8, the power supply module; 9, the varistor; 10, the crystal oscillator unit; 11, the reset unit; 12, the filtering unit; 13, the optocoupler; 14, the protection resistor component; 15, the triode; 16, the relay; 17, the first high-voltage diode; 18, the first protection resistor; 19, the current-limiting resistor; 40, the output discharge control branch; 30, the preset signal input branch; 20, the indicator light; 21, the adjustable resistor component; 22, the second protection resistor; 23, the protection capacitor; 210, the first adjustable resistor; 211, the second adjustable resistor; 140, the third protection resistor; 141, the fourth protection resistor; 400, the carrier board; 401, the energy storage capacitor; 402, the lithium battery. Detailed implementation manners

[0048] To make the purpose, technical solutions and advantages of the present invention clearer and more definite, the following further elaborates on the present invention with reference to the accompanying drawings and by way of examples.

[0049] As Figure 1-12As shown in the figure, the present invention discloses a 220V gas fracturing rock multi-functional excitation controller, which includes a box body 100, a box cover 200, and an operation panel 300 for operating rock fracturing; the box cover 200 is hinged to the box body 100; on the operation panel 300, there are installed multi-channel excitation output connection posts 301, a voltage display meter 302, a 220V voltage input port 303 for connecting 220V voltage, a keyboard 304, and a display screen 305; the bottom surface of the operation panel 300 is fixed with a main control PCBA board 500, and the main control PCBA board 500 is respectively connected to the excitation output connection posts 301, the voltage display meter 302, the 220V voltage input port 303, the keyboard 304, and the display screen 305; the main control PCBA board 500 is connected to the 220V voltage input electrical port 303; the main control PCBA board 500 can realize multi-channel control and multiple output mode functions.

[0050] In one embodiment, as Figure 3-14 shown, the main control PCBA board 500 includes:

[0051] A CPU 1 for inputting and outputting control signals and processing data,

[0052] A memory module 2, which is used for storing data and is connected to the CPU 1;

[0053] A preset mode input signal source unit 3 for inputting a preset rock fracturing initiation excitation mode, and the preset mode input signal source unit 3 is connected to the CPU 1;

[0054] An output discharge control unit 4 for outputting control signals and controlling discharge, and the output discharge control unit 4 is connected to the CPU 1;

[0055] A key input signal unit 5 for a user to input signals to the CPU 1, and the key input signal unit 5 is respectively connected to the CPU 1 and the keyboard 304;

[0056] A liquid crystal display unit 6 for displaying output signals, and the liquid crystal display unit 6 is connected to the CPU 1 and the display screen 305;

[0057] A download program module 7 for inputting programs to the CPU 1, and the download program module 7 is connected to the CPU 1;

[0058] And a power supply module 8, and the power supply module 8 supplies power to the CPU 1, the memory module 2, the preset mode input signal source unit 3, the output discharge control unit 4, the download program module 7, and the liquid crystal display unit 6 respectively;

[0059] The output discharge control unit 4 includes a plurality of output discharge control branches 40. The output discharge control branches 40 are connected to a 220V power supply, and the exciting output connection terminal 301 is directly powered by the 220V voltage, thereby realizing the provision of a stable detonation voltage. A varistor 9 is connected in parallel with the relay 16 in the output discharge control unit 4, and the varistor 9 is also connected in parallel with the first protection resistor 18 and the protection capacitor 23 connected in series.

[0060] The box opening of the box body 100 is provided with mounting ears for supporting and fixing the operation panel 300, and the operation panel 300 is fixedly connected to the mounting ears by screws. The main control PCBA board 500 is connected to the operation panel 300 through studs.

[0061] After adopting the above structure, the power supply module 8 of the present invention can supply power to the CPU 1 and the output and transmission control unit of the CPU 1, and the preset mode input signal source unit 3 can input a preset rock-breaking mode to the CPU 1. Therefore, the present invention can realize the switching of preset modes and switch according to the requirements of the rock-breaking scenario. Compared with the traditional rock-breaking method, the control mode of the present invention is diverse, and the control mode can be freely set to realize various detonation functions. In addition, the present invention realizes the input and setting of the preset mode through the key input signal unit 5; at the same time, a control signal is input. The present invention realizes the intelligent control of the rock-breaking controller through the CPU 1, and can control the discharge unit to discharge according to the set rock-breaking mode, realizing various explosion control methods. Presetting a variety of rock-breaking modes can be suitable for more scenarios, and make the rock-breaking construction project simpler, more convenient, and safer. The output signal can be displayed through the liquid crystal display unit 6, which is convenient for the operator to understand the rock-breaking operation situation; the existing control instruction program can be erased from a computer or a USB flash drive through the download program module 7, and the control instruction program in the CPU 1 can also be updated. The power supply module 8 supplies power to the above-mentioned modules or units that need electricity. The relay 16 in the output discharge control unit 4 is connected to a 220V voltage, and the supply voltage can directly discharge, so as to realize stable discharge voltage, and the power supply can be connected to the commercial power or a 220V power supply.

[0062] In one embodiment, a crystal oscillator unit 10 for controlling time accuracy is further included, and the crystal oscillator unit 10 is connected to the CPU 1. Preferably, the crystal oscillator unit 10 is an existing conventional technology, but through the connection with the CPU 1, the rock-breaking of the rock breaker can reach the millisecond level, making the detonation control more accurate.

[0063] In one embodiment, a reset unit 11 for resetting to zero is further included, and the reset unit 11 is connected to the CPU 1.

[0064] After adopting the above structure, the present invention can make the control assembly reset through the reset unit 11. When the output control instruction is disordered or incorrect, zero reset can be achieved, enabling the CPU 1 to return to the initial state and ensuring the control safety of the detonator.

[0065] In one embodiment, it further includes a filtering unit 12 for filtering. The filtering unit 12 is connected to the CPU 1. Therefore, the filtering unit 12 can prevent the power module 8 from interfering with the current of the CPU 1, making the control of the CPU 1 more accurate.

[0066] Preferably, the preset mode input signal source unit 3 includes multiple preset signal input branches 30. The signal output end of the preset signal input branch 30 is connected to the CPU 1, and the preset signal input branch 30 is connected to a multi-position switch through a wiring port P2. Each preset signal input branch 30 represents a preset mode. For example, Figure 8 As shown, there are 6 preset modes in the preset mode input unit in this embodiment, that is, 6 preset signal input branches 30.

[0067] Preferably, the preset signal input branch 30 includes an indicator light 20 for indicating the on / off of the preset mode, an optocoupler 13, an adjustment resistor component 21 for adjusting the supply voltage of the optocoupler 13, and a second protection resistor 22 for protecting the output signal end of the optocoupler 13.

[0068] The signal input end of the optocoupler is connected in series with the adjustment resistor component 21, and the adjustment resistor component 21 is connected to the wiring port P2.

[0069] The power module 8 is connected to the output signal end of the optocoupler 13 through the second protection resistor 22.

[0070] The adjustment resistor component 21 includes a first adjustment resistor 210 and a second adjustment resistor 211. The first adjustment resistor 210 is connected in series with the indicator light 20 and then connected in parallel with the second adjustment resistor 211.

[0071] After adopting the above structure, the present invention prevents the output end of the optocoupler 13 from being short-circuited through the second protection resistor 22, adjusts the voltage and current of the preset mode through the first adjustment resistor 210 and the second adjustment resistor 211, and the indicator light 20 is used to indicate whether the preset signal input branch 30 is connected.

[0072] For the 220V detonator assembly circuit, the signal input end of the output discharge control branch 40 is connected to the signal output end pin of the CPU 1, and the output end of the output and transmission control branch is connected to the discharge wire through an output wiring port.

[0073] As Figure 13 and 14 shown, in this embodiment, the output discharge control unit 4 includes six output discharge control branches 40, so that it can control six detonators to break rocks. Compared with the existing single-channel initiator, it can meet more detonation scenarios, making the rock breaking more precise and the rock breaking efficiency higher.

[0074] Preferably, the output discharge control branch 40 includes an optocoupler 13, a protection resistor component 14 for protecting the optocoupler, a triode 15 for signal on / off, a relay 16, and a first high-voltage diode 17 for preventing backflow;

[0075] The signal input end of the optocoupler 13 is connected to the signal output end pin of the CPU 1 and is connected to the power supply module 8 through a current-limiting resistor 19;

[0076] The output end of the optocoupler 13 is respectively connected to the protection resistor component 14 and the collector of the triode 15;

[0077] One end of the relay 16 is connected to the power supply module 8, and the other end of the relay 16 is connected to the base of the triode 15;

[0078] The relay 16 is connected to the discharge assembly through a switch; the emitter of the triode 15 is grounded;

[0079] The first high-voltage diode 17 is connected in parallel across the two ends of the relay 16.

[0080] Preferably, the protection resistor component 14 includes a third protection resistor 140 and a fourth protection resistor 141. The third protection resistor 140 and the fourth protection resistor 141 are connected in parallel and then connected to the output end of the optocoupler 13.

[0081] After adopting the above structure, the present invention can protect the optocoupler 13 through the protection resistor component 14, prevent the impact of the power supply module 8 on the optocoupler 13, and control the on / off of the relay 16 through the triode 15, so that the control effect of the controller is better, the signal output by the CPU 1 is not interfered by the discharge assembly, and the accuracy is higher.

[0082] Preferably, a carrier board 400, an energy storage capacitor 401, and a lithium battery 402 of the output discharge control unit are further installed in the box body 100. The energy storage capacitor 401 and the lithium battery 402 are fixed on the carrier board 400; so when charging with 220V voltage, the lithium battery can be charged, and when discharging, the energy storage capacitor 401 can buffer the current to prevent the current from instantaneously impacting the discharge circuit.

[0083] The present invention utilizes a CPU 1 for receiving and outputting control signals, while the preset mode input signal source unit 3 is used to input a preset rock-breaking mode and transmit it to the CPU 1. The CPU 1 then outputs the control instruction to the output discharge control unit 4, which is used to output the signal and control the discharge of the discharge circuit, thereby achieving discharge. The output discharge control unit 4 effectively isolates the discharge circuit from interfering with the control instructions of the CPU 1 and enables output transmission control. The liquid crystal display unit 6 is used to display the output signal so that the operator can understand the output control signal and the control instruction. Therefore, the present invention can realize the selection and preset of the control mode and can output the control signal according to demand, achieving precise control. The key input signal unit 5 enables manual input of the preset mode and control instruction. The download program module 7 enables the control program within the CPU 1 to be updated and modified, making it suitable for use in different rock-breaking control scenarios. In addition, the output discharge control unit 4 of the present invention adopts a 220V power supply as the power supply of the detonator, so the power supply is simple, so the detonator can boost the power of the lithium battery and transmit it to the high-voltage capacitor without a boost circuit and a high-voltage capacitor, and then the high-voltage capacitor is connected to the discharge assembly for discharge, so the overall circuit is simpler, and the power supply for rock breaking is convenient, as long as the 220V voltage is connected.

[0084] The above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. It should be pointed out that for technicians in this technical field, any modification or equivalent replacement of the technical solution of the present invention without creative work does not depart from the scope of protection of the technical solution of the present invention.

Claims

1. A 220V gas fracturing rock multi-functional excitation controller, characterized in that, It includes a box body, a box cover, and an operation panel for operating rock-breaking excitation control; the box cover is hinged to the box body; on the operation panel, there are multiple excitation output wiring terminals, a voltage display meter, a 220V voltage input port for connecting 220V voltage, a keyboard, a display screen, a mode switch, and a discharge control switch group; the bottom surface of the operation panel is fixed with a main control PCBA board, and the main control PCBA board is respectively connected to the excitation output wiring terminals, the voltage display meter, the 220V voltage input port, the keyboard, and the display screen; the main control PCBA board is connected to the 220V voltage input electrical port; The main control PCBA board can realize multiple control and multiple output mode functions; The main control PCBA board includes: A CPU for inputting and outputting control signals and processing data; A memory module, which is used for storing data and is connected to the CPU; A preset mode input signal source unit for inputting a preset rock-breaking initiation excitation mode, and the preset mode input signal source unit is connected to the CPU; An output discharge control unit for outputting control signals and controlling discharge, and the output discharge control unit is connected to the CPU; A key input signal unit for the user to input signals to the CPU, and the key input signal unit is respectively connected to the CPU and the keyboard; A liquid crystal display unit for displaying output signals, and the liquid crystal display unit is respectively connected to the CPU and the display screen; a download program module for inputting programs to the CPU, and the download program module is connected to the CPU; And a power supply module, the power supply module respectively powers the CPU, the memory module, the preset mode input signal source unit, the output discharge control unit, the download program module, and the liquid crystal display unit. The output discharge control unit includes multiple output discharge control branches, and the output discharge control branches are connected to a 220V power supply, and the control excitation output wiring terminals are directly powered by 220V voltage; a varistor is connected in parallel with the relay in the output discharge control unit, and the varistor is also connected in parallel with the first protection resistor and the protection capacitor connected in series. The main control PCBA board also includes a crystal oscillator unit for controlling time accuracy, and the crystal oscillator unit is connected to the CPU. The preset mode input signal source unit includes multiple preset signal input branches, and the signal output ends of the preset signal input branches are connected to the CPU, and the preset signal input branches are connected to the module switch through the wiring port P2.

2. The 220V gas fracturing rock multi-functional excitation controller according to claim 1, wherein The main control PCBA board also includes a reset unit for resetting to zero, and the reset unit is connected to the CPU.

3. The 220V gas fracturing and rock breaking multi-functional excitation controller according to claim 1, characterized in that, The preset signal input branch includes an indicator light for displaying the on / off of the preset mode, an optocoupler, an adjustment resistor component for adjusting the supply voltage of the optocoupler, and a second protection resistor for protecting the output signal end of the optocoupler; The signal input end of the optocoupler is connected in series with the adjustment resistor component, and the adjustment resistor component is connected to the wiring port P2; The power supply module is connected to the output signal end of the optocoupler through the second protection resistor; The adjustment resistor assembly includes a first adjustment resistor and a second adjustment resistor; the first adjustment resistor is connected in series with the indicator light and then connected in parallel with the second adjustment resistor.

4. The 220V gas fracturing rock multi-functional excitation controller according to claim 2, wherein, The signal input end of the output discharge control branch is connected to the signal output end pin of the CPU, and the output end of the output and transmission control branch is connected to the excitation output connection post through the output wiring port.

5. The 220V gas fracturing rock multi-functional excitation controller according to claim 2, characterized in that, The output discharge control branch includes an optocoupler, a protection resistor assembly for protecting the optocoupler, a triode for signal on / off, a relay, and a first high-voltage diode for preventing reverse flow; The signal input end of the optocoupler is connected to the signal output end pin of the CPU and is connected to the power supply module through a current-limiting resistor; The output end of the optocoupler is respectively connected to the protection resistor assembly and the collector of the triode; One end of the relay is connected to the power supply module, and the other end of the relay is connected to the base of the triode; The relay is connected to the discharge assembly through a switch; the emitter of the triode is grounded; The first high-voltage diode is connected in parallel across the relay.

6. The 220V gas fracturing rock multi-functional excitation controller according to claim 5, characterized in that, The protection resistor assembly includes a third protection resistor and a fourth protection resistor, and the third protection resistor and the fourth protection resistor are connected in parallel and then connected to the output end of the optocoupler.

7. The 220V gas fracturing rock multi-functional excitation controller according to claim 1, characterized in that, A energy storage capacitor and a lithium battery are also installed in the box.

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