Ignition electrode assembly for high pressure oxygen bomb
By designing an ignition electrode device for high-pressure oxygen bombs, employing two independent sets of ignition electrodes and a plasma pulse generator, the problem of unstable ignition circuits in domestically produced calorimeters was solved, achieving stable and reliable ignition effects and improved safety.
Patent Information
- Application Number
- CN202423212874.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The ignition circuit of domestically produced calorimeters is prone to poor contact or open circuit due to improper placement of the oxygen bomb, which can cause the thyristor on the circuit board to burn out, making the existing ignition method unstable.
Design an ignition electrode device for high-pressure oxygen bombs. It adopts two independent sets of ignition electrodes, and provides high-energy pulse voltage through a plasma pulse generator. The electrode wires are directly connected to the oxygen bomb. Multi-layer insulation and O-rings are provided to ensure stable contact and airtightness.
This achieves stability and safety in the ignition circuit, avoids ignition failure due to poor contact, simplifies the operation process, and improves the stability and safety performance of the device.
Smart Images

Figure CN223595978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oxygen bomb technology, specifically to an ignition electrode device for high-pressure oxygen bombs. Background Technology
[0002] A high-pressure oxygen bomb typically refers to a high-pressure, sealed oxygen container used for specific experiments or industrial testing. It is generally made of heat-resistant and corrosion-resistant nickel-chromium alloy steel, possessing high strength and sealing properties, and can withstand certain pressures. Utilizing its sealing characteristics, high-pressure oxygen is filled inside to provide conditions for reactions or tests requiring oxygen-rich or specific oxygen environments. For example, in an oxygen bomb calorimeter, the sample burns inside the high-pressure oxygen bomb, and the calorific value of the sample is determined by measuring the change in water temperature inside the bomb before and after combustion. Currently, most domestic calorimeters use a 24V AC output from a transformer in their ignition circuit. One wire is connected to the outer cylinder wall, and the other is connected to a spring post on the calorimeter's top cover. The voltage is conducted from the electrode point on the outer cylinder wall through the metal casing to the tripod inside the cylinder, then from the oxygen bomb to one end connected to the ignition wire. The electrode point on the spring post is connected to the instrument's top cover spring post, which directly contacts the oxygen bomb head, and then from the oxygen bomb head to the other end of the ignition wire. Therefore, in the experiment, as long as an ignition wire is installed, an ignition circuit can be formed.
[0003] During the ignition process, the ignition circuit of the domestic calorimeter relies on a set of 24V AC power output from the transformer. When the calorimeter cover is closed, if the oxygen bomb inside the outer cylinder of the calorimeter is not properly positioned, the ignition circuit may be open due to poor or no contact. Furthermore, this ignition method can easily cause the thyristor on the circuit board to burn out. If signs of burning are found after opening the cover, technicians will need to replace it, causing unnecessary losses. Utility Model Content
[0004] The purpose of this invention is to provide an ignition electrode device for high-pressure oxygen bombs, in order to solve the problems mentioned in the background art, such as if the oxygen bomb in the outer cylinder of the calorimeter is not placed in place, the ignition circuit is easily opened due to poor contact or no contact, and this ignition method is prone to burning out the thyristor on the circuit board.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an ignition electrode device for a high-pressure oxygen bomb, comprising a mounting bracket with a groove on its side surface, and an inner sealing rubber ring on the inner wall of the groove on the side surface of the mounting bracket. A second ignition device is mounted on the upper surface of one end of the mounting bracket, and a first ignition device is fixed to the upper end of the second ignition device. A spacer is provided on the surface of the first ignition device. A support mechanism is provided on the lower surface of one end of the mounting bracket, which is connected to the cage body through a cage support rod and limited by a supporting base. An opening is provided on the upper surface of one end of the mounting bracket, and a fourth ignition device is provided on the inner wall of the opening. A third ignition device is mounted on the outer surface of the upper end of the fourth ignition device. A first insulator is provided on the lower surface of the third ignition device, and an O-ring is provided at the lower end of the first insulator. An ignition rod is provided on the lower surface of the fourth ignition device, and an ignition shield is fixedly connected to the outer surface of the lower end of the ignition rod. A locking nut is provided between the fourth ignition device and the ignition rod.
[0006] Preferably, the mounting bracket is cylindrical, the inner sealing rubber ring is annular, and the second ignition device is threadedly connected to the mounting bracket.
[0007] By adopting the above technical solution, the cylindrical design of the mounting bracket facilitates the insertion of the annular inner closed rubber ring into its groove for positioning, and the threaded connection between the second ignition device and the mounting bracket facilitates connection and fixation.
[0008] Preferably, the support mechanism includes a cage support rod, which is installed on the lower surface of the mounting bracket. The lower end of the cage support rod is provided with a cage body, and the lower end of the cage body is provided with a supporting base frame.
[0009] By adopting the above technical solution, the cage body can be easily connected through the cage support rod, and the supporting base frame can be installed through the cage body.
[0010] Preferably, the cage support rod and the mounting bracket are threaded together, and the cage body and the supporting base are interlocked.
[0011] By adopting the above technical solution, the support device is easily disassembled and assembled through the threaded connection between the cage support rod and the mounting bracket, and the support base facilitates the support and limiting of the device.
[0012] Preferably, the lower surface of the third ignition device is in contact with the first insulator, and the O-ring is in contact with both the surface of the first insulator and the surface of the mounting bracket.
[0013] By adopting the above technical solution, the first insulator and the O-ring facilitate the blocking and limiting of the third ignition device, thereby improving safety performance.
[0014] Preferably, the fourth ignition device is threadedly connected to the third ignition device.
[0015] By adopting the above technical solution, the fourth ignition device is threadedly connected to the third ignition device, thereby increasing stability and connection efficiency.
[0016] Preferably, a second insulator is fixed between the fourth ignition device and the lower surface of the mounting bracket, and the locking nut is threadedly connected to the fourth ignition device and the ignition rod respectively.
[0017] By adopting the above technical solution, the fourth ignition device is protected by the second insulator, and the locking nut will improve the stability of the connection between the fourth ignition device and the ignition rod.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the ignition electrode device for high-pressure oxygen bombs:
[0019] 1. When this device is installed, it has two independent sets of ignition electrodes. The motor can be directly plugged into the terminals to form an independent ignition circuit, which has a larger contact area with the metal casing and more stable ignition.
[0020] 2. The method of using a transformer to output 24V voltage for ignition has been abandoned. Instead, the two ends of the electrode wire are connected to an external plasma pulse generator. The pulse generator outputs a high-energy pulse voltage, which is introduced into the projectile body through the discharge guide wire to ignite the ignition wire. This simplifies the operation process and eliminates the phenomenon of ignition failure due to poor contact or lack of contact.
[0021] 3. The ignition device is equipped with multiple layers of insulation. A spacer and insulator are installed below the ignition device to ensure full contact between the electrode and the ignition device. The mounting area is provided with a step for installing an O-ring, which ensures airtightness and achieves better stability. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall front view of the present invention;
[0023] Figure 2 This is a schematic diagram of the overall front sectional structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the overall side view structure of this utility model;
[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the mounting bracket and the inner closed rubber ring of this utility model;
[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the machine cage body and the supporting base frame of this utility model;
[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the ignition rod and the ignition shield of this utility model.
[0028] In the diagram: 1. Mounting bracket; 2. Inner sealing rubber ring; 3. First ignition device; 4. Spacer; 5. Second ignition device; 6. Cage support rod; 7. Cage body; 8. Support base frame; 9. Third ignition device; 10. First insulator; 11. O-ring; 12. Fourth ignition device; 13. Second insulator; 14. Locking nut; 15. Ignition rod; 16. Ignition shield. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-6 This utility model provides a technical solution: an ignition electrode device for a high-pressure oxygen bomb, comprising a mounting bracket 1, an inner sealing rubber ring 2, a first ignition device 3, a spacer 4, a second ignition device 5, a cage support rod 6, a cage body 7, a supporting base frame 8, a third ignition device 9, a first insulator 10, an O-ring 11, a fourth ignition device 12, a second insulator 13, a locking nut 14, an ignition rod 15, and an ignition shield 16. The mounting bracket 1 has a groove on its side surface, and the inner wall of the groove on the side surface of the mounting bracket 1 is provided with an inner sealing rubber ring 2. The mounting bracket 1 is cylindrical, and the inner sealing rubber ring 2 is circular. The device features a ring-shaped design. The second ignition device 5 is threadedly connected to the mounting bracket 1. When using this device, a spacer 4 serves as insulation between the first ignition device 3 and the mounting bracket 1. After tightening the second ignition device 5 in the threaded hole on the mounting bracket 1, the first ignition device 3 is screwed onto the second ignition device 5. A first insulator 10 is installed at the connection between the third ignition device 9 and the mounting bracket 1. A second insulator 13 serves as insulation between the fourth ignition device 12 and the mounting bracket 1. After passing the fourth ignition device 12 and the second insulator 13 through the hole at the bottom of the mounting bracket 1, the upper third ignition device 9 is screwed onto the thread at the lower end of the fourth ignition device 12.
[0031] A second ignition device 5 is mounted on the upper surface of one end of the mounting bracket 1, and a first ignition device 3 is fixed to the upper end of the second ignition device 5. A spacer 4 is provided on the surface of the first ignition device 3. The support mechanism includes a cage support rod 6, which is mounted on the lower surface of the mounting bracket 1. A cage body 7 is provided at the lower end of the cage support rod 6, and a support frame 8 is provided at the lower end of the cage body 7. The cage support rod 6 and the mounting bracket 1 are threaded together, and the cage body 7 and the support frame 8 are interlocked together. Steps are machined at the two electrode mounting points of the mounting bracket 1 for installing O-rings 11, which improves stability and ensures good sealing. The cage support rod 6 is installed below the negative electrode of the mounting bracket 1. The cage support rod 6 is screwed into the threaded hole on the lower surface of the mounting bracket 1 through the upper thread. The cage body 7 is fixed below the cage support rod 6, and the support frame 8 is interlocked at the lower end of the cage body 7.
[0032] A support mechanism is provided on the lower surface of one end of the mounting bracket 1. It is connected to the cage body 7 through the cage support rod 6 and is limited by the support base 8. An opening is provided on the upper surface of one end of the mounting bracket 1, and a fourth ignition device 12 is provided on the inner wall of the opening of the mounting bracket 1. A third ignition device 9 is installed on the upper outer surface of the fourth ignition device 12. The lower surface of the third ignition device 9 is in contact with the first insulator 10. The O-ring rubber ring 11 is in contact with the surface of the first insulator 10 and the mounting bracket 1 respectively. The upper thread of the ignition rod 15 is used to fix the locking nut 14. The ignition cover 16 is put into the ignition rod 15 and locked on the lower limit of the ignition rod 15. After the fixation is completed, the protruding threaded part of its front end is screwed onto the fourth ignition device 12.
[0033] The lower surface of the third ignition device 9 is provided with a first insulator 10, and the lower end of the first insulator 10 is provided with an O-ring rubber ring 11. The lower surface of the fourth ignition device 12 is provided with an ignition rod 15, and the lower outer surface of the ignition rod 15 is fixedly connected with an ignition cover 16. A locking nut 14 is provided between the fourth ignition device 12 and the ignition rod 15. The fourth ignition device 12 and the third ignition device 9 are connected by a thread. A second insulator 13 is fixed between the fourth ignition device 12 and the lower surface of the mounting bracket 1. The locking nut 14 is connected by a thread to the fourth ignition device 12 and the ignition rod 15 respectively. After the two electrode wires are inserted into the two electrodes, they are led to the plasma pulse generator for ignition. This ignition method is more stable and efficient.
[0034] Working principle: When using this ignition electrode device for high-pressure oxygen bombs, the fourth ignition device 12 and the mounting bracket 1 are insulated by the second insulator 13. The third ignition device 9 is screwed onto the thread at the lower end of the fourth ignition device 12. The cage support rod 6 and the mounting bracket 1 are connected by threads, and the mounting bracket 1 and the supporting base 8 are used for limiting. The ignition rod 15 and the mounting bracket 1 are connected by threads, and the ignition cover 16 is sleeved on the outer surface of the ignition rod 15. The ignition rod 15 is threaded to the lower end of the fourth ignition device 12 for connection. Two electrode wires are inserted into the first ignition device 3 and the third ignition device 9 respectively, and the electrode wires are guided to the plasma pulse generator for ignition, which increases the overall practicality.
[0035] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An ignition electrode device for a high-pressure oxygen bomb, comprising a mounting bracket (1) having a groove on its side surface, and an inner sealing rubber ring (2) being provided on the inner wall of the groove on the side surface of the mounting bracket (1), characterized in that: A second ignition device (5) is mounted on the upper surface of one end of the mounting bracket (1), and a first ignition device (3) is fixed to the upper end of the second ignition device (5). A spacer (4) is provided on the surface of the first ignition device (3). A support mechanism is provided on the lower surface of one end of the mounting bracket (1), which is connected to the cage body (7) through the cage support rod (6) and limited by the supporting base frame (8). An opening is provided on the upper surface of one end of the mounting bracket (1), and a fourth ignition device is provided on the inner wall of the opening of the mounting bracket (1). The device (12) has a third ignition device (9) installed on the upper outer surface of the fourth ignition device (12). The lower surface of the third ignition device (9) is provided with a first insulator (10) and an O-ring (11) is provided at the lower end of the first insulator (10). The lower surface of the fourth ignition device (12) is provided with an ignition rod (15) and an ignition cover (16) is fixedly connected to the lower outer surface of the ignition rod (15). A locking nut (14) is provided between the fourth ignition device (12) and the ignition rod (15).
2. The ignition electrode device for a high-pressure oxygen bomb according to claim 1, characterized in that: The mounting bracket (1) is cylindrical, the inner closed rubber ring (2) is annular, and the second ignition device (5) is threadedly connected to the mounting bracket (1).
3. The ignition electrode device for a high-pressure oxygen bomb according to claim 1, characterized in that: The support mechanism includes a cage support rod (6), which is installed on the lower surface of the mounting bracket (1). The lower end of the cage support rod (6) is provided with a cage body (7), and the lower end of the cage body (7) is provided with a supporting base frame (8).
4. The ignition electrode device for a high-pressure oxygen bomb according to claim 3, characterized in that: The cage support rod (6) and the mounting bracket (1) are connected by a thread, and the cage body (7) and the supporting base frame (8) are connected by a snap-fit connection.
5. An ignition electrode device for a high-pressure oxygen bomb according to claim 1, characterized in that: The lower surface of the third ignition device (9) is in contact with the first insulator (10), and the O-ring (11) is in contact with the surfaces of the first insulator (10) and the mounting bracket (1) respectively.
6. An ignition electrode device for a high-pressure oxygen bomb according to claim 1, characterized in that: The fourth ignition device (12) and the third ignition device (9) are connected by a thread.
7. An ignition electrode device for a high-pressure oxygen bomb according to claim 1, characterized in that: A second insulator (13) is fixed between the fourth ignition device (12) and the lower surface of the mounting bracket (1), and the locking nut (14) is threadedly connected to the fourth ignition device (12) and the ignition rod (15).