Plasma high pressure ignition device

Abstract

The application discloses a kind of plasma high-pressure ignition device, it is related to electronic detonator initiation technology adjacent area, to solve the technical problem of low ignition power, energy leakage is serious, low airtightness of traditional ignition device, provide a kind of energy concentration, airtightness strong plasma high-pressure directional ignition device.The core structure includes high-pressure ignition module, semiconductor bridge, fuse, test hole, sealing wrapping layer and integrated metal tube shell.The igniter adopts integrated structure design, and high-pressure ignition module, semiconductor bridge and explosion-proof protection module are integrated;By using high-temperature resistant sealant to fill the gap between the metal tube shell, a pressure environment above 0.5MPa is achieved to prevent leakage;The device can be widely used in gas turbine, aerospace thruster, oil drilling equipment and other high-pressure scene ignition system, with reliable sealing, stable structure, easy assembly.

Description

Technical Field

[0001] This invention relates to the field of electronic detonator initiation technology, specifically a plasma high-voltage ignition device. Background Technology

[0002] Existing ignition devices generally suffer from problems such as dispersed ignition energy, long activation time, and low ignition success rate. This is especially true under conditions of low temperature, low pressure, or unstable combustible medium concentration, where traditional ignition methods struggle to quickly form an effective ignition core. Furthermore, traditional ignition heads lack effective energy confinement structures, making it easy for energy generated during ignition to leak laterally, resulting in low detonation efficiency. This not only wastes energy but can also lead to safety hazards such as localized overheating and seal failure due to lateral energy leakage. In addition, the existing ignition heads have insufficient sealing design, allowing external impurities and moisture to easily penetrate the ignition core area, further reducing ignition reliability and limiting their application in complex operating conditions. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that existing ignition devices have low ignition power, serious energy leakage and poor sealing. The present invention provides a plasma high-voltage ignition device with concentrated energy and strong sealing.

[0004] The present invention solves the above-mentioned technical problems by adopting the following technical solution: a plasma ignition device is provided, including a high-voltage ignition module, a semiconductor bridge, a fuse, a test hole, a sealing wrapping layer and an integrated metal shell.

[0005] Preferably, the high-voltage ignition module includes an energy storage unit, a boost unit, and a control unit; wherein the energy storage unit uses an electrolyte capacitor with a withstand voltage of 600V or higher for stable energy storage; the boost unit uses a high-frequency resonant transformer with an input voltage of 12-24V DC and an output high-voltage pulse voltage of 600V, with a boost efficiency of over 90%, which can quickly convert low-voltage electricity into high-voltage pulse energy to ensure ignition power; the control unit uses an STM32F0 series microcontroller to receive external ignition commands and control the ignition process.

[0006] Preferably, the semiconductor bridge is a plasma generating device made of nanoscale semiconductor material, with a bridge thickness of 50-80μm and a width of 200-300μm. After receiving a high-voltage pulse, it can generate high-temperature plasma of 3000-5000K, and the energy is highly concentrated at the ignition end, improving the ignition efficiency. At the same time, the semiconductor bridge has good anti-interference and environmental adaptability, and can work stably under harsh conditions of low temperature and low pressure.

[0007] Preferably, the detonating cord is a Taian detonating cord with stable detonation velocity and its outer layer is covered with a waterproof and flame-retardant sheath.

[0008] Preferably, the input end of the detonating cord is tightly connected to the semiconductor bridge, and the output end of the detonating cord is connected to at least two end ignition loads through a branch connector. The initial detonation energy is provided by the high-voltage ignition module. By utilizing the high-speed detonation wave transmission characteristics of the detonating cord, microsecond-level synchronous triggering of multiple end ignition loads can be achieved.

[0009] Preferably, the test hole is located on the side of the integrated metal tube shell and adopts a sealed structure design. The test hole contains a conductive probe and a sealing rubber plug. The sealing rubber plug achieves airtight protection. When testing is required, the conductive probe can be connected through a dedicated testing instrument. The conduction status of the semiconductor bridge and the plasma generation efficiency can be detected without disassembling the device. After the test is completed, the sealing rubber plug automatically resets to ensure that the sealing performance of the device is not affected, which facilitates subsequent maintenance and troubleshooting.

[0010] Preferably, the sealing layer is a high-temperature resistant flame-retardant sealant with a temperature range of -50℃ to 200℃, possessing good flame-retardant and sealing properties.

[0011] Preferably, the sealant tightly wraps around the connection points of the high-voltage ignition module, semiconductor bridge, and propellant chamber to the fuse body, while filling the gaps between the integrated metal shell and each component, forming a comprehensive sealing structure. This effectively prevents external impurities and moisture from entering the device, while also preventing internal energy leakage and ensuring stable operation of the device under complex working conditions.

[0012] Preferably, the integrated metal shell is made of stainless steel with a shell thickness of 2-3mm, and has good pressure resistance and impact resistance, and can withstand pressure environments of more than 0.5MPa.

[0013] Preferably, the tube shell is provided with positioning platforms at both ends for precise positioning of the high-voltage ignition module, propellant chamber, and fuse body components, ensuring that the components are assembled in the correct position and guaranteeing the stability of energy transmission.

[0014] Compared with the prior art, the present invention provides a plasma high-voltage ignition device, which has the following beneficial effects: 1. This invention utilizes a collaborative design of a high-voltage ignition module and a semiconductor bridge. The high-voltage ignition module rapidly converts low-voltage electrical energy into high-voltage pulse energy, while the semiconductor bridge instantly generates high-temperature concentrated plasma upon receiving the high-voltage pulse, achieving a high degree of concentration of ignition energy. This effectively solves the problems of low ignition power and dispersed energy in traditional ignition devices, increasing ignition efficiency to over 99.5%. It is particularly suitable for harsh operating conditions such as low temperature, low pressure, and unstable concentration of flammable media. Simultaneously, the directional output of plasma energy reduces lateral energy leakage by over 80%, avoiding safety hazards such as localized overheating and sealing failure.

[0015] 2. This invention adopts a dual-sealing structure of integrated metal shell and sealing wrapping layer. The integrated metal shell has good pressure resistance and impact resistance. The sealing wrapping layer fills the gaps between various components and covers key connection parts to form an all-round seal. It can prevent leakage in pressure environments above 0.5MPa, effectively blocking the intrusion of external impurities and moisture. It solves the problem of poor sealing of traditional ignition devices and improves the reliability and service life of the device under complex working conditions.

[0016] 3. The invention adds a protection unit and a sealed test port, which not only improves the safety of the device but also facilitates later testing and maintenance. Key parameters can be monitored without disassembly, reducing maintenance costs and downtime.

[0017] 4. The components of this invention are made of high-temperature resistant, pressure-resistant, and impact-resistant materials. Combined with the high-temperature resistant and flame-retardant properties of the sealing and wrapping layer, the device has good environmental adaptability and can be widely used in ignition systems under high pressure and harsh working conditions such as gas turbines, aerospace propulsion systems, and oil drilling equipment. It has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 2 This is an overall effect diagram of the present invention.

[0020] In the diagram: Z1: High-voltage ignition module; Z2: Semiconductor bridge; Z3: Detonating cord; Z4: Test hole; Z5: Sealing wrapping layer; Z6: Integrated metal casing. Detailed Implementation

[0021] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 and Figure 2 A plasma high-voltage ignition device includes the following structure: a high-voltage ignition module Z1, a semiconductor bridge Z2, a detonating cord Z3, a test hole Z4, a sealing wrapping layer Z5, and an integrated metal shell Z6.

[0023] In this embodiment, the high-voltage ignition module includes an energy storage unit, a boost unit, and a control unit. The energy storage unit uses an electrolyte capacitor with a withstand voltage of 600V or higher, which has a high capacity and can stably store electrical energy. The boost unit uses a high-frequency resonant transformer with an input voltage of 12V DC and an output high-voltage pulse voltage of 600V. The boost efficiency has been tested to reach 90%, enabling rapid energy conversion. The control unit uses an STM32F0 series chip. This microcontroller operates at a frequency of 48MHz and has multiple I / O ports. It can accurately receive external ignition commands and control the charging and discharging of the energy storage unit and the start and stop of the boost unit through a preset program, realizing automated control of the ignition process.

[0024] In this embodiment, the semiconductor bridge is made of nanoscale semiconductor material with a thickness of 50-80μm and a width of 200-300μm. After receiving a high-voltage pulse, it can generate high-temperature plasma of 3000-5000K, and the energy is highly concentrated at the ignition end, improving the ignition efficiency. At the same time, the semiconductor bridge has good anti-interference and environmental adaptability, and can work stably under harsh conditions such as low temperature, -40℃ to -20℃, and low pressure, below 0.1MPa.

[0025] In this embodiment, the detonating cord is a Taian core detonating cord with stable detonation velocity, and its outer layer is covered with a waterproof and flame-retardant sheath, which is suitable for complex working conditions such as outdoor and underwater environments. The input end of the detonating cord is tightly connected to the semiconductor bridge, and the output end of the detonating cord is connected to at least two end ignition loads through a branch connector. The initial detonation energy is provided by the high-voltage ignition module. By utilizing the high-speed detonation wave transmission characteristics of the detonating cord, microsecond-level synchronous triggering of multiple end ignition loads can be achieved, which significantly improves the triggering efficiency and synchronization accuracy of the high-voltage ignition system.

[0026] In this embodiment, the test hole is located on the side of the integrated metal housing and adopts a sealed structure design. The test hole contains a conductive probe and a sealing rubber plug. Normally, the sealing rubber plug provides airtight protection. When testing is required, the conductive probe can be connected through a dedicated testing instrument. Key parameters such as the conductivity of the semiconductor bridge and plasma generation efficiency can be detected without disassembling the device. After the test is completed, the sealing rubber plug automatically resets, ensuring that the device's sealing performance is not affected, which facilitates subsequent maintenance and troubleshooting.

[0027] In this embodiment, the sealing layer is a high-temperature flame-retardant sealant with a temperature range of -50℃ to 200℃, possessing excellent flame-retardant and sealing properties. The sealant tightly wraps around the connection points of the high-voltage ignition module, semiconductor bridge, propellant cavity, and fuse body, while filling the gaps between the integrated metal shell and various components, forming a comprehensive sealing structure. This effectively prevents external impurities and moisture from entering the device, while also preventing internal energy leakage, ensuring stable operation of the device under complex working conditions.

[0028] In this embodiment, the integrated metal shell is made of stainless steel with a shell thickness of 2-3mm, which has good pressure resistance and impact resistance and can withstand pressure environments of more than 0.5MPa. Positioning platforms are provided at both ends of the shell for precise positioning of components such as the high-voltage ignition module, propellant chamber, and fuse body, to ensure that the assembly position of each component is correct and to ensure the stability of energy transmission.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma high-voltage ignition device, characterized in that: The device includes a high-voltage ignition module, a semiconductor bridge, a detonating cord, a test port, a sealing layer, and an integrated metal housing. The high-voltage ignition module includes an energy storage unit, a voltage boosting unit, and a control unit. The semiconductor bridge is a plasma ignition device. The detonating cord is used to detonate explosives. The sealing layer is a high-temperature resistant flame-retardant sealant that tightly wraps around the ignition body and fills the gaps between the metal tubes and shells. All components are integrated and assembled within the integrated metal housing. The sealing layer uses high-temperature resistant sealant to fill the gaps between the metal tubes and shells, forming an integrated sealed structure.

2. The plasma high-voltage ignition device according to claim 1, characterized in that: The high-voltage ignition module includes an energy storage unit, a boost unit, and a control unit. The energy storage unit uses an electrolyte capacitor with a withstand voltage of 600V or higher to stably store electrical energy. The boost unit uses a high-frequency resonant transformer with an input voltage of 12-24V DC and an output high-voltage pulse voltage of 600V, achieving a boost efficiency of over 90%. It can quickly convert low-voltage electricity into high-voltage pulse energy to ensure ignition power. The control unit uses an STM32F0 series microcontroller to receive external ignition commands and control the ignition process.

3. The plasma high-voltage ignition device according to claim 1, characterized in that: The semiconductor bridge is a plasma generator made of nanoscale semiconductor material. The bridge body is 50-80μm thick and 200-300μm wide. After receiving a high-voltage pulse, it can generate high-temperature plasma of 3000-5000K, and the energy is highly concentrated at the ignition end, improving the ignition efficiency. At the same time, the semiconductor bridge has good anti-interference and environmental adaptability, and can work stably under harsh conditions of low temperature and low pressure.

4. The plasma high-voltage ignition device according to claim 1, characterized in that, The detonating cord is a Taian core detonating cord with stable detonation velocity, and its outer layer is covered with a waterproof and flame-retardant sheath.

5. A plasma high-voltage ignition device according to claim 4, characterized in that, The input end of the detonating cord is tightly connected to the semiconductor bridge, and the output end of the detonating cord is connected to at least two end ignition loads through a branch connector. The initial detonation energy is provided by the high-voltage ignition module. By utilizing the high-speed detonation wave transmission characteristics of the detonating cord, the microsecond-level synchronous triggering of multiple end ignition loads can be achieved.

6. The plasma high-voltage ignition device according to claim 1, characterized in that, The test hole is located on the side of the integrated metal casing and adopts a sealed structure design. The test hole contains a conductive probe and a sealing rubber plug. The sealing rubber plug achieves airtight protection. When testing is required, the conductive probe can be connected through a dedicated testing instrument. The conductivity of the semiconductor bridge and the plasma generation efficiency can be detected without disassembling the device. After the test is completed, the sealing rubber plug automatically resets to ensure that the device's sealing performance is not affected, which facilitates later maintenance and troubleshooting.

7. The plasma high-voltage ignition device according to claim 1, characterized in that, The sealing layer is a high-temperature resistant flame-retardant sealant with a temperature range of -50℃ to 200℃, and has good flame-retardant and sealing properties.

8. A plasma high-voltage ignition device according to claim 6, characterized in that, The sealant tightly wraps around the connection points of the high-voltage ignition module, semiconductor bridge, and propellant chamber to the fuse body, while filling the gaps between the integrated metal shell and each component, forming a comprehensive sealing structure. This effectively prevents external impurities and moisture from entering the device, while also preventing internal energy leakage and ensuring stable operation of the device under complex working conditions.

9. A plasma high-voltage ignition device according to claim 1, characterized in that, The integrated metal shell is made of stainless steel with a shell thickness of 2-3mm, and has good pressure and impact resistance, and can withstand pressure environments of more than 0.5MPa.

10. A plasma high-voltage ignition device according to claim 9, characterized in that, The tube shell is provided with positioning bosses at both ends for precise positioning of the high-voltage ignition module, propellant chamber, and fuse body components, ensuring that each component is assembled in the correct position and guaranteeing the stability of energy transmission.

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