Wide input safe voltage stabilizing circuit and high-energy initiation system

Abstract

The application provides a wide input safe voltage stabilizing circuit and a high-energy initiating system, the circuit comprises a power supply, a first voltage stabilizing module and a second voltage stabilizing module; wherein the power supply is used for providing an input voltage for the circuit, a power input end of the first voltage stabilizing module is connected with a first power output end of the power supply, and the first voltage stabilizing module is used for stabilizing the input voltage and outputting a first stable voltage; a power input end of the second voltage stabilizing module is connected with a power output end of the first voltage stabilizing module, and the second voltage stabilizing module is used for stabilizing the first stable voltage to a second stable voltage and outputting the second stable voltage. The application has the effect of improving the stability of the input voltage of the high-energy initiating system and guaranteeing the safety performance of the high-energy initiating system.

Description

Technical Field

[0001] This invention relates to the field of detonation technology, and more specifically, to a wide-input safety voltage regulator circuit and a high-energy detonation system. Background Technology

[0002] In civilian blasting applications such as oil perforation, ordinary electric detonators are mostly used as the detonating element. These detonators contain relatively sensitive initiating or igniting explosives, which are susceptible to accidental ignition due to stray currents such as radio frequency and static electricity during storage, transportation, and use, potentially causing personal injury and property damage. Explosive bridge wire detonators (EBW) offer higher safety than conventional electric detonators and are increasingly used in oil and gas extraction and other fields.

[0003] Because explosive bridge wire (EBW) detonators do not contain sensitive initiating or igniting explosives, they can only detonate under instantaneous high voltage and high current, fundamentally improving the safety performance of the detonator. They are immune to accidental ignition from lightning, static electricity, stray currents, radio frequency interference, etc. Domestically, this technology is mainly used in ground-based military products. The high-energy detonation system is directly powered by a low-voltage power supply, resulting in a short power supply circuit and stable voltage. However, if this technology is applied to cable-driven perforations in oil and gas wells, after the surface power supply is transmitted via an 8-kilometer single-core cable to the high-energy detonation system, the different cable specifications and electrical performance parameters of each operating team mean that the input voltage of the downhole high-energy detonation system is not a fixed value during different team operations. The wide input voltage range makes it difficult to guarantee safety performance and results in poor stability. Summary of the Invention

[0004] The purpose of this invention is to provide a wide-input safety voltage regulator circuit and a high-energy detonation system, with the aim of improving the stability of the input voltage of the high-energy detonation system.

[0005] The embodiments of the present invention are achieved through the following technical solutions:

[0006] First aspect

[0007] A wide-input safe voltage regulator circuit is provided, the circuit including a power supply, a first voltage regulator module, and a second voltage regulator module; wherein, the power supply provides an input voltage to the circuit, the power input terminal of the first voltage regulator module is connected to the first power output terminal of the power supply, and is used to regulate the input voltage and output a first stable voltage; the power input terminal of the second voltage regulator module is connected to the power output terminal of the first voltage regulator module, and is used to stabilize the first stable voltage to a second stable voltage and output it.

[0008] The first voltage regulator module includes a diode D1, a field-effect transistor Q1, a first resistor R1, a first Zener diode Z1, and a second Zener diode Z2. The anode of diode D1 serves as the power input terminal of the circuit and is connected to the first power output terminal of the power supply. The cathode of diode D1 is connected to the drain of the field-effect transistor Q1, and the gate of the field-effect transistor Q1 is connected to the cathode of the second Zener diode Z2, with the anode of the second Zener diode Z2 grounded. The source of the field-effect transistor Q1 is connected to the cathode of the first Zener diode Z1, with the anode of the first Zener diode Z1 grounded. One end of the first resistor R1 is connected to the drain of the field-effect transistor Q1, and the other end of the first resistor R1 is connected to the source of the field-effect transistor Q1. The source of the field-effect transistor Q1 serves as the power output terminal of the first voltage regulator module for outputting a first stable voltage.

[0009] Preferably, the second voltage regulator module includes a voltage regulator chip U1, a first capacitor C1, and a second capacitor C2; wherein, the first pin of the voltage regulator chip U1 serves as the power input terminal of the second voltage regulator module and is connected to the source of the field-effect transistor Q1, the second pin of the voltage regulator chip U1 serves as the power output terminal of the second voltage regulator module for outputting a second stable voltage, and the third pin of the voltage regulator chip U1 is grounded; one end of the first capacitor C1 is connected to the first pin of the voltage regulator chip U1, and the other end of the first capacitor C1 is grounded; one end of the second capacitor C2 is connected to the second pin of the voltage regulator chip U1, and the other end of the second capacitor C2 is grounded.

[0010] Second aspect

[0011] A high-energy detonation system is provided for detonating an explosive bridge wire detonator. The high-energy detonation system includes a wide-input safety voltage regulator circuit as described in the first aspect. The system further includes a boost circuit, a control circuit, a high-voltage multiplier circuit, and an energy storage detonation circuit. The safety voltage regulator circuit provides a stable first stable voltage to the boost circuit and a stable second stable voltage to the control circuit. The boost circuit and the high-voltage multiplier circuit increase the voltage input to the detonation system. The control circuit controls the boost circuit to increase the voltage. The energy storage detonation circuit stores energy to detonate the explosive bridge wire detonator.

[0012] Preferably, the system further includes a second resistor R2 and a third resistor R3, wherein one end of the second resistor R2 and the other end of the second resistor R2 are connected to one end of the third resistor R3 and serve as the second power output terminal of the power supply, and the other end of the third resistor R3 is grounded.

[0013] Preferably, the first power input terminal of the boost circuit is connected to the first power output terminal of the power supply, the first control power input terminal of the boost circuit is connected to the power output terminal of the first voltage regulator module, the second control power input terminal of the boost circuit is connected to the control power output terminal of the control circuit, and the boost circuit boosts the voltage in response to the control power input at the first and second control power input terminals.

[0014] Preferably, the first control power input terminal of the control circuit is connected to the second power output terminal of the power supply, and the second control power input terminal of the control circuit is connected to the power output terminal of the second voltage regulator module; the control circuit responds to an increase in the input power at the first control power input terminal by outputting control power through the control power output terminal of the control circuit.

[0015] The technical solution of this invention has at least the following advantages and beneficial effects: by setting a first voltage regulator module and a second voltage regulator module in the wide input safety voltage regulator circuit, the input voltage of the power supply to the circuit can be stabilized to a first stable voltage and a second stable voltage. After the stable first stable voltage and second stable voltage are applied to the high-energy detonation system, the first stable voltage and second stable voltage input to the high-energy detonation system are always within the safe range, thereby improving the stability of the input voltage of the high-energy detonation system and ensuring the safety performance of the high-energy detonation system. Attached Figure Description

[0016] Figure 1 A schematic diagram of the circuit structure of a wide-input safe voltage regulator circuit provided in one embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a high-energy detonation system provided in one embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Example 1

[0020] Reference Figure 1This embodiment provides a wide-input safe voltage regulator circuit, which includes a power supply, a first voltage regulator module, and a second voltage regulator module. The power supply provides an input voltage to the circuit. The power input terminal of the first voltage regulator module is connected to the first power output terminal of the power supply, and is used to regulate the input voltage and output a first stable voltage. The power input terminal of the second voltage regulator module is connected to the power output terminal of the first voltage regulator module, and is used to stabilize the first stable voltage to a second stable voltage and output it.

[0021] In this embodiment, the power supply uses a single-core cable input. The single-core cable includes a single-core cable core and a single-core cable shell. The single-core cable core is used for input voltage, while the single-core cable shell is considered as ground, and all grounding points are connected to the single-core cable shell. During blasting, the single-core cable can be up to 8000 meters long, and its input voltage is in the range of 20V-400V.

[0022] A gas discharge tube GAP1 is also connected between the single-core cable core and the single-core cable shell, which has the function of lightning protection.

[0023] The first voltage regulator module includes a diode D1, a field-effect transistor Q1, a first resistor R1, a first Zener diode Z1, and a second Zener diode Z2. The anode of diode D1 serves as the power input terminal of the circuit and is connected to the first power output terminal of the power supply. The cathode of diode D1 is connected to the drain of the field-effect transistor Q1, and the gate of the field-effect transistor Q1 is connected to the cathode of the second Zener diode Z2, with the anode of the second Zener diode Z2 grounded. The source of the field-effect transistor Q1 is connected to the cathode of the first Zener diode Z1, with the anode of the first Zener diode Z1 grounded. One end of the first resistor R1 is connected to the drain of the field-effect transistor Q1, and the other end of the first resistor R1 is connected to the source of the field-effect transistor Q1. The source of the field-effect transistor Q1 serves as the power output terminal of the first voltage regulator module for outputting a first stable voltage.

[0024] In the first voltage regulator module, when the input voltage of the power supply passes through diode D1, it enters the field-effect transistor Q1 from the drain of the field-effect transistor Q1. The first voltage regulator diode Z1 and the second voltage regulator diode Z2 set in the first voltage regulator module can stabilize the voltage, so that the first stable voltage output from the source of the field-effect transistor Q1 is always stable at 15V.

[0025] The second voltage regulator module includes a voltage regulator chip U1, a first capacitor C1, and a second capacitor C2. The first pin of the voltage regulator chip U1 serves as the power input terminal of the second voltage regulator module and is connected to the source of the field-effect transistor Q1. The second pin of the voltage regulator chip U1 serves as the power output terminal of the second voltage regulator module for outputting a second stable voltage. The third pin of the voltage regulator chip U1 is grounded. One end of the first capacitor C1 is connected to the first pin of the voltage regulator chip U1, and the other end of the first capacitor C1 is grounded. One end of the second capacitor C2 is connected to the second pin of the voltage regulator chip U1, and the other end of the second capacitor C2 is grounded.

[0026] In the second voltage regulator module, the 15V voltage input to the voltage regulator chip U1 is regulated by the voltage regulator chip U1 and can be output as a second stable voltage of 5V from the second pin of the voltage regulator chip U1, thereby providing a stable voltage for subsequent circuits.

[0027] In this embodiment, by setting a first voltage regulator module and a second voltage regulator module in the wide input safety voltage regulator circuit, the input voltage of the power supply to the circuit can be stabilized to a first stable voltage and a second stable voltage. After the stable first stable voltage and second stable voltage are applied to the high-energy detonation system, the first stable voltage and second stable voltage input to the high-energy detonation system are always within the safe range, thereby improving the stability of the input voltage of the high-energy detonation system and ensuring the safety performance of the high-energy detonation system.

[0028] Example 2

[0029] Reference Figure 1 This embodiment provides a high-energy detonation system for detonating an explosive bridge wire detonator. The high-energy detonation system includes a wide-input safety voltage regulator circuit as described in the first aspect. The system also includes a boost circuit, a control circuit, a high-voltage multiplier circuit, and an energy storage detonation circuit. The safety voltage regulator circuit provides a stable first stable voltage to the boost circuit and a stable second stable voltage to the control circuit. The boost circuit and the high-voltage multiplier circuit increase the voltage input to the detonation system. The control circuit controls the boost circuit to increase the voltage. The energy storage detonation circuit stores energy to detonate the explosive bridge wire detonator.

[0030] During operation, the 15V and 5V voltages output from the wide-input safety voltage regulator circuit can activate the boost circuit and control circuit, putting them into the startup state. Furthermore, the voltage input to the wide-input safety voltage regulator circuit is stabilized, ensuring that the output voltage of the wide-input safety voltage regulator circuit is always within the safe range. It can reliably and stably output 5V and 15V voltages to supply the control circuit and boost drive circuit, ensuring that the system is always in standby mode.

[0031] In a high-energy detonation system, a boost circuit is used to increase the input voltage. The voltage input from the single-core cable core can be boosted from 160V-250V to 2000V under the action of the boost circuit, and then boosted to 6000V through a high-voltage multiplier circuit. In the energy storage detonation circuit, a high-voltage energy storage capacitor is set up. The 6000V high-voltage electricity can charge the high-voltage energy storage capacitor. When the detonating bridge wire detonator is detonated, the high-voltage energy storage capacitor can release the detonation voltage and activate the bridge wire detonator in a very short time.

[0032] The system also includes a second resistor R2 and a third resistor R3, wherein one end of the second resistor R2 and the other end of the second resistor R2 are connected to one end of the third resistor R3 and serve as the second power output terminal of the power supply, and the other end of the third resistor R3 is grounded.

[0033] In the high-energy detonation system, the second resistor R2 and the third resistor R3 act as voltage dividers.

[0034] The first power input terminal of the boost circuit is connected to the first power output terminal of the power supply, the first control power input terminal of the boost circuit is connected to the power output terminal of the first voltage regulator module, the second control power input terminal of the boost circuit is connected to the control power output terminal of the control circuit, and the boost circuit boosts the voltage in response to the control power input at the first and second control power input terminals.

[0035] The first control power input terminal of the control circuit is connected to the second power output terminal of the power supply, and the second control power input terminal of the control circuit is connected to the power output terminal of the second voltage regulator module; the control circuit responds to the increase of the input power at the first control power input terminal by outputting control power through the control power output terminal of the control circuit.

[0036] In one embodiment, the input voltage of the single-core cable core is divided by R2 and R3 and then input to the control circuit. At this time, the control circuit monitors the input voltage of the single-core cable in real time. When the input voltage is between 160 and 250V, the control circuit outputs a control signal. The boost circuit increases its output voltage based on the control signal of the control circuit. The output voltage of the boost circuit is then multiplied to 5000-7000V by the high voltage multiplier circuit.

[0037] The high-voltage multiplier circuit then outputs the voltage to the energy storage detonation circuit. The energy storage detonation circuit rectifies the 5000-7000V AC voltage and charges the high-voltage energy storage capacitor installed inside it. The voltage of the high-voltage energy storage capacitor gradually increases as it is charged. When the voltage inside the high-voltage energy storage capacitor is greater than 5000V, the discharge switch inside the high-voltage energy storage circuit is triggered. The high-voltage energy storage circuit can instantaneously output the energy in the energy storage capacitor within 200ns, providing a discharge current of more than 2000A, thereby activating the bridge wire detonator.

[0038] In this embodiment, a wide-input safety voltage regulator circuit is set up to provide a stable operating voltage for the boost circuit and the control circuit, so that the high-energy detonation system has the advantages of high safety, high reliability, instantaneousness, and high anti-interference, and the circuit is small in size and low in cost.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wide-input safe voltage regulator circuit, characterized in that, The circuit includes a power supply, a first voltage regulator module, and a second voltage regulator module. The power supply provides an input voltage to the circuit. The power input terminal of the first voltage regulator module is connected to the first power output terminal of the power supply, and is used to regulate the input voltage and output a first stable voltage. The power input terminal of the second voltage regulator module is connected to the power output terminal of the first voltage regulator module, and is used to stabilize the first stable voltage to a second stable voltage and output it. The first voltage regulator module includes a diode D1, a field-effect transistor Q1, a first resistor R1, a first Zener diode Z1, and a second Zener diode Z2. The anode of diode D1 serves as the power input terminal of the circuit and is connected to the first power output terminal of the power supply. The cathode of diode D1 is connected to the drain of the field-effect transistor Q1, and the gate of the field-effect transistor Q1 is connected to the cathode of the second Zener diode Z2, with the anode of the second Zener diode Z2 grounded. The source of the field-effect transistor Q1 is connected to the cathode of the first Zener diode Z1, with the anode of the first Zener diode Z1 grounded. One end of the first resistor R1 is connected to the drain of the field-effect transistor Q1, and the other end of the first resistor R1 is connected to the source of the field-effect transistor Q1. The source of the field-effect transistor Q1 serves as the power output terminal of the first voltage regulator module for outputting a first stable voltage.

2. The wide input safe voltage regulator circuit according to claim 1, characterized in that: The second voltage regulator module includes a voltage regulator chip U1, a first capacitor C1, and a second capacitor C2. The first pin of the voltage regulator chip U1 serves as the power input terminal of the second voltage regulator module and is connected to the source of the field-effect transistor Q1. The second pin of the voltage regulator chip U1 serves as the power output terminal of the second voltage regulator module for outputting a second stable voltage. The third pin of the voltage regulator chip U1 is grounded. One end of the first capacitor C1 is connected to the first pin of the voltage regulator chip U1, and the other end of the first capacitor C1 is grounded. One end of the second capacitor C2 is connected to the second pin of the voltage regulator chip U1, and the other end of the second capacitor C2 is grounded.

3. A high-energy initiation system, said high-energy initiation system being used to initiate an explosive bridge wire detonator, characterized in that: The high-energy detonation system includes a wide-input safety voltage regulator circuit as described in claim 1 or 2. The system further includes a boost circuit, a control circuit, a high-voltage multiplier circuit, and an energy storage detonation circuit. The safety voltage regulator circuit provides a stable first stable voltage to the boost circuit and a stable second stable voltage to the control circuit. The boost circuit and the high-voltage multiplier circuit increase the voltage input to the detonation system. The control circuit controls the boost circuit to increase the voltage. The energy storage detonation circuit stores energy to detonate the bridge wire detonator.

4. A high-energy detonation system according to claim 3, characterized in that: The system also includes a second resistor R2 and a third resistor R3, wherein one end of the second resistor R2 and the other end of the second resistor R2 are connected to one end of the third resistor R3 and serve as the second power output terminal of the power supply, and the other end of the third resistor R3 is grounded.

5. A high-energy detonation system according to claim 4, characterized in that: The first power input terminal of the boost circuit is connected to the first power output terminal of the power supply, the first control power input terminal of the boost circuit is connected to the power output terminal of the first voltage regulator module, the second control power input terminal of the boost circuit is connected to the control power output terminal of the control circuit, and the boost circuit boosts the voltage in response to the control power input at the first and second control power input terminals.

6. A high-energy detonation system according to claim 5, characterized in that: The first control power input terminal of the control circuit is connected to the second power output terminal of the power supply, and the second control power input terminal of the control circuit is connected to the power output terminal of the second voltage regulator module; the control circuit responds to the increase of the input power at the first control power input terminal by outputting control power through the control power output terminal of the control circuit.

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