High-speed electric control valve and control method

Abstract

The invention belongs to the technical field of fluid control, and discloses a high-speed electric control valve and a control method thereof, and the valve comprises a tubular valve body, an internal diaphragm, a metal explosion wire adhered to the diaphragm, a connecting electrode and a control circuit. The energy storage circuit module is composed of a high-voltage capacitor and a fast thyristor, when a trigger signal is received, the thyristor is conducted to enable the capacitor to instantly discharge to the explosion wire, the metal wire is gasified to generate shock waves to break down the diaphragm, and microsecond-level high-speed conduction is achieved. The diaphragm is preferably a polyimide film with the thickness of 10-100 microns, the explosion wire is a copper / tungsten wire with the diameter of 0.05-0.5 mm, and the explosion wire is matched with a capacitor with the charging voltage of 200-1000 V and the capacitance value of 10-1000 [mu] F. The control method comprises the steps of diaphragm installation, capacitor charging, triggering signal sending, high-voltage discharging and diaphragm breaking conduction, and reliable operation is ensured by dynamically adjusting charging voltage and adopting an optical fiber / wireless triggering mode. The invention has the characteristics of fast response and strong interference resistance, and is suitable for high pressure difference occasions needing to accurately control the on-off of gas.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fluid control, and particularly relates to a high-speed electrically controlled valve and a control method thereof, which realizes super-speed valve action through the mode of driving membrane rupture by electric explosion, and has important application in rapid fluid control under extreme working conditions. BACKGROUND

[0002] In the field of valve technology, traditional valves mainly rely on mechanical devices for operation, and the opening and closing process usually requires a relatively long response time, generally measured in milliseconds. Although this mechanical operation method can meet the needs of most conventional application scenarios, in some special application scenarios with extremely high response speed requirements, such as explosion suppression, gas emergency shutdown, and spacecraft propulsion systems, the performance of existing valves is obviously insufficient.

[0003] Currently, valve products on the market mainly adopt the following technical solutions: the first is an electromagnetic valve, which realizes opening and closing by driving the valve core to move through an electromagnetic coil, but its response time is usually in the range of 10-100 milliseconds; the second is a pneumatic valve, which relies on gas pressure to drive the actuator, and the response time is longer; the third is an electric valve, which uses a motor for driving, and the response speed is slower. These traditional valve technologies all have a common technical bottleneck: due to the inertia of mechanical moving parts, their response speed is difficult to break through the time scale of milliseconds.

[0004] In an explosion suppression system, when an explosion hazard is detected, the release of suppression gas needs to be completed within tens of microseconds, and the response speed of existing valves is far from meeting this requirement. Similarly, in a spacecraft propulsion system, in order to achieve precise orbit control and attitude adjustment, the flow control of propellant needs to be completed in microseconds, which puts forward extremely high requirements on the response speed of the valve. In addition, in the field of gas safety protection, when gas leakage is detected, the gas source needs to be shut off in a very short time, and the closing speed of traditional valves is obviously insufficient.

[0005] Although there are some existing technologies that attempt to improve the response speed of valves, such as using piezoelectric ceramic driving or shape memory alloy technology, these solutions either have high costs or insufficient reliability, and the improvement in response speed is limited, still unable to meet the demand for microsecond-level response. Especially in situations that require rapid control of large flow gas, existing technologies are difficult to balance response speed and control accuracy.

[0006] In summary, existing valve technologies have obvious technical bottlenecks in response speed, and there is an urgent need to develop a new valve technology scheme that can achieve microsecond-level high-speed response under electrical signal control. This scheme needs to break through the limitations of traditional mechanical driving methods, fundamentally solve the problem of insufficient valve response speed, and meet the strict requirements of special application scenarios for rapid gas control. SUMMARY

[0007] In order to solve the problem of slow mechanical operation valve, the present application provides a high-speed electric control valve, through the control of electric signal, using the explosion wire to produce shock wave under the action of electricity, to destroy the diaphragm, so as to realize the high-speed opening of the valve in the microsecond level, so that the gas can flow quickly, to meet the requirements of special purpose on the response speed of the valve.

[0008] In order to achieve the above object, the present application provides the following technical scheme:

[0009] The high-speed electric control valve of the present application comprises:

[0010] The valve body is in a tubular structure, used for connecting the high pressure end and the low pressure end of the gas.

[0011] The diaphragm is arranged inside the valve body, used for isolating the gas flow on both sides of the valve body.

[0012] The explosion wire is pasted on the diaphragm, and the explosion wire is a conductive metal filament.

[0013] The electrode is connected to both ends of the explosion wire.

[0014] The energy storage circuit module comprises a capacitor and a thyristor, the capacitor is used for storing electric energy, and the thyristor is used for controlling the on-off of the discharge circuit.

[0015] The control circuit module is used for sending a trigger signal to the thyristor.

[0016] The energy storage circuit module is connected to the explosion wire through the electrode, and the explosion wire is instantaneously gasified to produce a shock wave after being electrified, so as to destroy the diaphragm and realize the high-speed conduction of the valve.

[0017] In addition to the above technical features, the present application is also optimized and improved in the following aspects:

[0018] As a preferred technical scheme of the present application, the diaphragm is a polyimide or polyester film, and the thickness is 10-100 μm.

[0019] As a preferred technical scheme of the present application, the explosion wire is a copper wire or a tungsten wire, the diameter is 0.05-0.5 mm, and the length is 5-50 mm.

[0020] As a preferred technical scheme of the present application, the charging voltage of the capacitor is 200-1000 V, and the capacitance value is 10-1000 μF.

[0021] As a preferred technical scheme of the present application, the trigger delay time of the thyristor is less than 1 μs, to realize the microsecond level response.

[0022] As a preferred technical solution of the present application, the full opening time of the valve is less than 10 μs.

[0023] A second object of the present application is to provide a control method of a high-speed electrically controlled valve, comprising the following steps:

[0024] The installation step is to fix the diaphragm inside the valve body and paste the exploding wire on the surface of the diaphragm.

[0025] The charging step is to charge the capacitor to a set voltage through a charging circuit.

[0026] The triggering step is to send a trigger pulse to the thyristor by the control circuit module after receiving an external control signal.

[0027] The discharging step is that the capacitor releases high-voltage current to the exploding wire through the electrode when the thyristor is turned on.

[0028] The diaphragm breaking step is to break the diaphragm by the shock wave generated by the exploding wire under the action of the current, so as to realize the high-speed conduction of the valve.

[0029] As a preferred technical solution of the present application, in the charging step, the charging voltage of the capacitor is dynamically adjusted according to the diaphragm thickness and the exploding wire parameters.

[0030] As a preferred technical solution of the present application, in the triggering step, the control circuit module transmits the trigger instruction by optical fiber or wireless signal to avoid electromagnetic interference.

[0031] As a preferred technical solution of the present application, in the diaphragm breaking step, the gasification time of the exploding wire is controlled within 0.1-5 μs.

[0032] In combination with the description of the above technical content, the technical effects of the present application mainly reflect in the following aspects:

[0033] 1. Ultra-high-speed response performance

[0034] The shock wave generated by the instantaneous gasification of the exploding wire breaks the diaphragm, realizing the rapid conduction of the valve within microseconds (less than 10 μs), which is 2-3 orders of magnitude higher than the response speed of the traditional mechanical valve. It is especially suitable for explosive suppression, gas emergency shutdown and other scenes that require extremely fast gas control, and can complete the rapid establishment or cutting of the gas passage in the initial stage of the danger (usually within hundreds of microseconds).

[0035] 2. Accurate and controllable operation characteristics

[0036] The capacitor energy storage and thyristor accurate triggering circuit design can realize the accurate control of the discharge time in the range of 0.1-5 μs. By adjusting the capacitor charging voltage (200-1000 V) and the capacitor value (10-1000 μF), the breaking energy of the exploding wire can be accurately adjusted according to different application requirements.

[0037] 3. High reliability and safety

[0038] The innovative diaphragm-exploding wire structure design avoids the moving parts of the traditional mechanical valve, eliminates the problems of mechanical wear and inertia delay. The exploding wire is triggered to act under the high-power electric pulse driving, has extremely high anti-interference ability, and can effectively prevent mis-triggering.

[0039] 4. Simple structure and low cost

[0040] The overall structure is composed of a valve body, a diaphragm, an exploding wire and a simple circuit, has few parts, and has low manufacturing cost. Standard capacitors and thyristors and other electronic components are used, which facilitates batch production and maintenance.

[0041] 5. Wide application adaptability

[0042] It is suitable for various gas media, including flammable and explosive gases, and has unique advantages in spacecraft propulsion systems, industrial safety protection and other fields. The diaphragm and exploding wire assembly can be replaced to realize rapid reset, and meet the application scenarios that need to be reused.

[0043] 6. Environmental friendliness

[0044] Compared with traditional exploding valves, it does not contain toxic heavy metals or chemical agents, only uses a small amount of metal wires and polymer materials, and meets the environmental protection requirements. There is no continuous current consumption in the working process, only energy is consumed in the action moment, and the energy saving effect is remarkable.

[0045] In summary, the diaphragm and exploding wire are combined in the application, the exploding wire is triggered by an electric signal to gasify instantaneously, the diaphragm is damaged by the shock wave generated thereby, the valve achieves microsecond-level response, the opening time is less than 10 μs, compared with traditional valves, the response speed is increased by orders of magnitude, and the technical blank in the field of extreme fast gas control is successfully filled.

[0046] Meanwhile, the dynamic charging parameter design skillfully avoids the inherent defects of the mechanical structure, and builds a firm guarantee for the safe and reliable operation of the valve. In addition, the valve structure is simple, the operation is convenient, and it is highly adapted to the extreme working conditions of extremely fast on-off, significantly widens the application boundary of the valve, and brings a new solution with revolutionary significance to the related industry. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a longitudinal sectional view of the valve body and the diaphragm of the application;

[0048] Figure 2 is a schematic view of the combination structure of the valve body, the diaphragm and the electrode of the present application;

[0049] Figure 3 is a view of the diaphragm in the valve body of the present application in an unbroken state;

[0050] Figure 4 is a view of the diaphragm in the valve body of the present application in a broken state;

[0051] Figure 5 is a schematic view of the circuit control principle of the present application.

[0052] In the figure: 1, valve body; 2, diaphragm; 3, electrode; 4, exploding wire; 5, capacitor; 6, thyristor. DETAILED DESCRIPTION

[0053] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and are not used to limit the present application.

[0054] I. Description of the Descriptive Language in the Present Application

[0055] The embodiments given in the present application in conjunction with the technical solutions are to make the present application more thorough and complete, and fully express the scope of the present application to the person skilled in the art. It should be noted that: unless otherwise specified in the present application, the relative arrangement of the components set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation on the technical solutions of the present application.

[0056] In the present application, if the orientation language such as "up", "down", "left", "right", "bottom", "top" and the like is used, it is defined with respect to the direction in the drawings, and is only used to indicate the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly. These or other orientation language should not be understood as limiting language.

[0057] In the present application, the words such as "one", "a", "one kind", "the" and the like do not represent quantity limitation, and can represent singular or plural. The terms "include", "contain", "have" and any variations thereof involved in the present application are intended to cover non-exclusive inclusion; if the present application involves the terms "first", "second", "third" and the like, they are only to distinguish similar objects, and do not represent a specific order of the objects.

[0058] In the present application, when it is described that a specific device is located between a first device and a second device, there can be or can not be an intervening device between the specific device and the first device or the second device. When it is described that a specific device is connected to another device, the specific device can be directly connected to the other device without an intervening device, or can not be directly connected to the other device with an intervening device.

[0059] In addition, the technologies and devices known to those of ordinary skill in the relevant art are not discussed in detail, but should be considered as part of the specification where appropriate.

[0060] Second, the core technical problem to be solved by the technical scheme of the present application

[0061] The existing valve technology has a significant bottleneck in response speed. Traditional valves rely on mechanical devices for operation, with response times measured in milliseconds, which can meet the needs of conventional scenarios, but are insufficient in special scenarios such as explosion suppression, gas emergency shutdown, spacecraft propulsion systems, and other scenarios with extremely high response speed requirements.

[0062] The mainstream technical solutions on the market, such as electromagnetic valves, pneumatic valves, and electric valves, are limited by the inertia of mechanical moving parts, making it difficult to break through the millisecond level in response speed. For example, explosion suppression systems need to release suppression gas within tens of microseconds, spacecraft propulsion systems require microsecond-level control of propellant flow, and the gas safety protection field requires extremely short time to shut off the gas source. Existing valves cannot meet these needs.

[0063] Although piezoelectric ceramic driving or shape memory alloy technology is used to improve response speed, there are problems such as high cost, insufficient reliability, and limited response speed improvement, especially in large-flow gas rapid control scenarios, making it difficult to balance response speed and control accuracy. Therefore, there is an urgent need to develop a new type of valve technology solution that can achieve microsecond-level high-speed response under electrical signal control and break through the limitations of traditional mechanical driving.

[0064] Three, based on the above problems, the present application provides a technical solution to solve the above problems, which will be described in detail below in conjunction with specific embodiments, and reference will be made to Figures 1 to 5 the drawings, the technical scheme of the present application and the working principle and technical effects will be described in detail.

[0065] Example 1

[0066] In conjunction with the accompanying Figure 1 , Figure 2 , the high-speed electrically controlled valve of the present application includes a valve body 1, a diaphragm 2, an explosion wire 4, an electrode 3, an energy storage circuit module, and a control circuit module.

[0067] The valve body 1 is in a tubular structure, located in the center of the valve, for connecting the high pressure end and the low pressure end. The diaphragm 2 is arranged inside the valve body 1, made of polyimide film with a thickness of 50 μm, for isolating the gas flow on both sides of the valve body.

[0068] The exploding wire 4 is a copper wire with a diameter of 0.1 mm and a length of 10 mm, which is pasted on the diaphragm 2. The electrode 3 is connected to both ends of the exploding wire 4 for transmitting current.

[0069] The energy storage circuit module includes a capacitor 5 and a thyristor 6. The charging voltage of the capacitor 5 is 500 V, and the capacitance is 100 μF, for storing energy. The trigger delay time of the thyristor 6 is less than 1 μs, for controlling the on-off of the discharge circuit.

[0070] The control circuit module is used to send a trigger signal to the thyristor 6. In addition, it also includes an insulating packaging layer for wrapping the exploding wire 4 and the electrode 3 to prevent gas leakage and arc interference.

[0071] When the high-speed electric control valve needs to be turned on, the capacitor 5 is first charged to 500 V by the charging circuit. After receiving the external control signal, the control circuit module sends a trigger pulse to the thyristor 6, which is turned on, and the capacitor 5 releases a high-voltage current to the exploding wire 4 through the electrode 3. Because the impedance of the discharge circuit is very small, the exploding wire 4 passes through a large current and is instantly gasified into plasma at high temperature, and this process lasts about 1 μs. In a very short time, the plasma generates a local shock wave, which blows up the diaphragm 2, realizing the high-speed opening of the valve, and the full opening time of the valve is less than 10 μs.

[0072] Compared with the valve in the prior art which is operated by mechanical devices and has an opening and closing time of milliseconds, the high-speed electric control valve of the present embodiment can be opened at a speed of microseconds due to the design of the exploding wire 4 and the energy storage circuit module, and is suitable for special occasions such as explosion suppression, gas emergency shutdown or spacecraft propulsion system. At the same time, the structure is simple, and the use is simple through the control of electric signal.

[0073] Example 2

[0074] The difference between this embodiment and example 1 is that the exploding wire 4 is a tungsten wire with a diameter of 0.2 mm and a length of 20 mm, and the diaphragm 2 is a polyester film with a thickness of 80 μm. The tungsten wire has a higher melting point and strength, and can withstand a larger current and energy, and the polyester film also has good toughness and corrosion resistance.

[0075] Due to the change of the material and parameters of the exploding wire 4 and the diaphragm 2, the charging voltage of the capacitor 5 needs to be dynamically adjusted to 800V according to the thickness of the diaphragm 2 and the parameters of the exploding wire 4 during operation. When the trigger signal is sent, the thyristor 6 is turned on, the capacitor 5 releases high-voltage current to the exploding wire 4, and the exploding wire 4 gasifies to generate a shock wave to destroy the diaphragm 2 within 2μs, realizing the high-speed conduction of the valve.

[0076] The embodiment further improves the reliability and adaptability of the high-speed electrically controlled valve by improving the exploding wire 4 and the diaphragm 2. The use of tungsten wire enables the exploding wire 4 to generate a stronger shock wave during gasification, ensuring that the diaphragm 2 can be reliably destroyed. The use of polyester film improves the corrosion resistance and service life of the diaphragm 2. At the same time, by dynamically adjusting the charging voltage, it can better adapt to diaphragms 2 and exploding wires 4 of different thicknesses and materials, ensuring the conduction time and effect of the valve. For example, in some highly corrosive gas environments, the valve of the embodiment can work better and have a longer service life.

[0077] The high-speed electrically controlled valve is particularly suitable for gas on-off control scenarios that require microsecond-level fast response, such as aerospace propulsion systems, explosion mechanics test devices, pulse detonation engines, and high-voltage gas discharge equipment.

[0078] Embodiment 3

[0079] The embodiment discloses a high-speed electrically controlled valve control method, and the specific steps are as follows:

[0080] S1, installation step: fix the diaphragm 2 of 50μm thickness in the tubular valve body 1, and paste the copper exploding wire 4 of 0.1mm diameter and 10mm length on the surface of the diaphragm 2.

[0081] S2, charging step: charge the capacitor 5 to 500V through the charging circuit, and the charging voltage is determined according to the thickness of the diaphragm 2 and the parameters of the exploding wire 4.

[0082] S3, trigger step: after receiving the external control signal, the control circuit module transmits the trigger instruction by optical fiber signal to send the trigger pulse to the thyristor 6, so as to avoid electromagnetic interference.

[0083] S4, discharging step: the thyristor 6 is turned on, and the capacitor 5 releases high-voltage current to the exploding wire 4 through the electrode 3.

[0084] S5, diaphragm breaking step: the exploding wire 4 gasifies under the action of the current, the gasification time is controlled within 1μs, a shock wave is generated to destroy the diaphragm 2, and the high-speed conduction of the valve is realized.

[0085] S6, reset step: after the valve is turned on, replace the new diaphragm 2 and exploding wire 4 assembly to restore the valve function.

[0086] Regarding the process parameters involved in the above steps:

[0087] In the charging step, the charging voltage of 500V is selected because the thickness of the diaphragm 2 is 50pm, the diameter of the copper explosive wire 4 is 0.1mm, and the length is 10mm. At this voltage, the energy stored in the capacitor 5 can cause the explosive wire 4 to instantaneously vaporize and produce a sufficient shock wave to destroy the diaphragm 2, while avoiding excessive energy that can damage the valve body 1.

[0088] In the triggering step, the optical fiber signal is used to transmit the trigger command because the optical fiber signal is not affected by electromagnetic interference, ensuring the accuracy and timeliness of the trigger signal and ensuring the response speed of the valve.

[0089] In the membrane breaking step, the vaporization time of the explosive wire 4 is controlled within 1ps, in order to ensure that the shock wave can be generated in a very short time, realizing the microsecond-level conduction of the valve.

[0090] Compared with the traditional mechanical control valve method, the full opening time of the valve is less than 10ps using the control method of the present embodiment, greatly improving the response speed of the valve. At the same time, by using the optical fiber signal to transmit the trigger command, electromagnetic interference is avoided, improving the accuracy and reliability of the control.

[0091] In addition, the setting of the reset step enables the valve to quickly restore its function after conduction, improving the efficiency of the valve. For example, in an explosion suppression system, the control method of the present embodiment can open the valve in a very short time to release the suppression gas, effectively suppressing the occurrence of explosion.

[0092] Example 4

[0093] The present embodiment differs from Example 3 in the charging step and the triggering step. In the charging step, since the diaphragm 2 is a polyester film with a thickness of 80pm, and the explosive wire 4 is a tungsten wire with a diameter of 0.2mm and a length of 20mm, the charging voltage of the capacitor 5 is dynamically adjusted to 800V. In the triggering step, the control circuit module uses wireless signal to transmit the trigger command, also to avoid electromagnetic interference. The other steps are the same as Example 1.

[0094] Regarding the process parameters involved in the above steps of the present embodiment:

[0095] Due to the use of a polyester film diaphragm 2 with greater thickness and a tungsten wire exploding wire 4 with greater diameter and length, their physical properties are different from the polyimide diaphragm 2 and copper exploding wire 4 in Embodiment 1. The polyester film is more flexible, the melting point of the tungsten wire is higher, and the resistance is greater, so a higher charging voltage (800V) is required to provide sufficient energy to gasify the exploding wire 4 and generate a sufficient shock wave to destroy the diaphragm 2. At the same time, the wireless signal transmission trigger instruction has the characteristics of high flexibility and can be used in some complex environments.

[0096] By dynamically adjusting the charging voltage in the control method and using the wireless signal transmission trigger instruction, the embodiment realizes the adaptability of the diaphragm 2 and the exploding wire 4 with different materials and parameters, and improves the application range of the valve.

[0097] For example, in some places where optical fibers cannot be laid, the wireless signal transmission trigger instruction can be used to conveniently control the valve. At the same time, the adjusted charging voltage can ensure that the valve can still conduct within microseconds when using different diaphragms 2 and exploding wires 4, ensuring the performance of the valve. Compared with Embodiment 1, the control method of the embodiment has further improved adaptability and flexibility.

[0098] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0099] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art; when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

Claims

1. A high-speed electrically controlled valve, characterized in that, include: The valve body (1) has a tubular structure and is used to connect the high-pressure end and the low-pressure end of the gas. A diaphragm (2) is disposed inside the valve body to isolate the gas flow on both sides of the valve body; Explosion wire (4) is attached to the diaphragm, and the explosion wire is a conductive metal filament; Electrode (3) is connected to both ends of the explosive wire; The energy storage circuit module includes a capacitor (5) and a thyristor (6), wherein the capacitor is used to store electrical energy and the thyristor is used to control the opening and closing of the discharge circuit; The control circuit module is used to send a trigger signal to the thyristor; The energy storage circuit module is connected to the explosive wire via electrodes. When energized, the explosive wire instantly vaporizes to generate a shock wave, which destroys the diaphragm to enable high-speed valve operation.

2. The high-speed electrically controlled valve according to claim 1, characterized in that, The diaphragm (2) is a polyimide or polyester film with a thickness of 10 to 100 μm.

3. The high-speed electrically controlled valve according to claim 1, characterized in that, The explosive wire (4) is a copper wire or a tungsten wire with a diameter of 0.05 to 0.5 mm and a length of 5 to 50 mm.

4. The high-speed electrically controlled valve according to claim 1, characterized in that, The capacitor (5) has a charging voltage of 200-1000V and a capacitance of 10-1000μF.

5. The high-speed electrically controlled valve according to claim 1, characterized in that, The trigger delay time of the thyristor (6) is less than 1 μs, so as to perform microsecond-level response.

6. The high-speed electrically controlled valve according to any one of claims 1 to 5, characterized in that, The valve's full opening time is less than 10 μs.

7. A control method for a high-speed electrically controlled valve, characterized in that, Includes the following steps: Installation steps: Fix the diaphragm (2) inside the valve body (1) and attach the explosion wire (4) to the surface of the diaphragm; Charging steps: Charge the capacitor (5) to the set voltage through the charging circuit; Triggering steps: After receiving the external control signal, the control circuit module sends a trigger pulse to the thyristor (6); Discharge steps: The thyristor is turned on, and the capacitor releases high-voltage current to the explosion wire through electrode (3); Membrane rupture step: The exploding wire vaporizes under the action of electric current, generating a shock wave that destroys the diaphragm, enabling the valve to conduct at high speed.

8. The control method according to claim 7, characterized in that, During the charging step, the charging voltage of the capacitor is dynamically adjusted according to the diaphragm thickness and the parameters of the exploding wire.

9. The control method according to claim 7, characterized in that, In the triggering step, the control circuit module uses optical fiber or wireless signal transmission to transmit the triggering command in order to avoid electromagnetic interference.

10. The control method according to claim 7, characterized in that, In the membrane breaking step, the vaporization time of the explosive wire is controlled within 0.1 to 5 μs.

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