A portable plasma ignition device

Abstract

The utility model discloses a portable plasma ignition device, including ignition control box, with ignition control box through control cable connection ignition module, and with the wind pressure module of ignition module connection, the air outlet one end of wind pressure module connects ignition gun, the inside hollow of ignition gun forms the passage, and the high -voltage cable of ignition module is connected with the high -voltage cable joint of wind pressure module, and wind pressure module is high -voltage shielding wire along the passage of ignition gun inside and is connected with the leading arc point of ignition gun end portion, the leading arc point positive pole of leading arc point passes through ionized air to form plasma flame, and through plasma flame ignites combustible gas. The utility model discloses an ignition device simple structure, easy installation, utilize the advantage that plasma ignition has the arc length, energy is high, and arc is uninterrupted, has improved the reliability of ignition device, has solved the equipment installation complex, the problem of not high adaptability, and the ignition failure rate is higher.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas drilling technology, and in particular to a portable plasma ignition device. Background Technology

[0002] During oil drilling, when drilling reaches a high-pressure oil and gas layer, if the drilling fluid column pressure is lower than the layer pressure, the high-pressure oil and gas flow will invade the wellbore and gradually rise towards the wellhead, potentially causing a blowout or well kick. In this situation, drilling workers will shut off the blowout preventer and take appropriate measures such as throttling and venting. However, the vented natural gas must be ignited; otherwise, if it mixes with air in a certain proportion, it may explode, and the H2S-containing gas can also endanger human lives.

[0003] In the prior art, the device used to ignite natural gas is an ignition device. An ignition device is a device used to ignite the combustible gas generated during the overflow or well surge process. Existing ignition devices include a flare, an ignition control system, a fuel ignition component, and a fuel storage tank.

[0004] In existing technologies, diesel fuel is typically injected into the end of the venting line, and an ignition rod is installed in the path of the diesel fuel injection to ignite the injected diesel fuel, which in turn ignites gases such as hydrogen sulfide overflowing from the end of the venting line. However, this ignition method has the following drawbacks:

[0005] First: The diesel fuel tank of the ignition system is inconvenient to transport and store, which can easily cause safety hazards.

[0006] Second: When the ignition system is exposed to the outdoor environment for a long time, the atomization effect of the fuel injectors will gradually decrease, reducing the ignition success rate and creating safety hazards;

[0007] Third: The ignition system is complex and cumbersome to install, and has low compatibility with drilling production environments.

[0008] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a portable plasma ignition device. Utility Model Content

[0009] The purpose of this invention is to provide a portable plasma ignition device. This ignition device has a simple structure and is easy to install. It utilizes the advantages of plasma ignition, such as long arc, high energy, and uninterrupted arc, to improve the reliability of the ignition device and solve the problems of complex installation, poor adaptability, and high ignition failure rate in the prior art.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] This utility model discloses a portable plasma ignition device, which includes:

[0012] Ignition control box;

[0013] The ignition module is connected to the ignition control box via a control cable; and

[0014] A wind pressure module connected to the ignition module, with one end of the air outlet of the wind pressure module connected to an ignition gun;

[0015] The hollow interior of the ignition gun forms a channel. The high-voltage cable of the ignition module is connected to the high-voltage cable connector of the air pressure module. The high-voltage shielding wire inside the air pressure module extends along the channel inside the ignition gun and connects to the arc-starting point at the end of the ignition gun.

[0016] The positive electrode of the arc-ignition point ionizes the air to form a plasma flame, and the plasma flame ignites the combustible gas.

[0017] Furthermore, combustible gas enters through the inlet end of the venting pipeline, and a combustion chamber is provided at the outlet end of the venting pipeline;

[0018] One end of the ignition point of the ignition gun is supported on the upper end of the combustion cylinder by an arc-ignition point support cylinder, and the arc-ignition point support cylinder is connected to the combustion cylinder.

[0019] Furthermore, the ignition gun is arranged parallel to the discharge pipeline, and the ignition gun is connected to the discharge pipeline through multiple support members.

[0020] Furthermore, the ignition control box has an external control panel;

[0021] The ignition control box integrates a power supply module and a battery, and the battery is electrically connected to the power supply module via a power supply line.

[0022] The power interface of the ignition control box is connected to an external power source via a power cord.

[0023] The ignition control box also integrates a remote control module and an antenna connected to the remote control module.

[0024] Furthermore, the air pressure module is equipped with a fan, and the lower part of the air pressure module has a one-way air supply port. The air pressure module guides the air entering from the one-way air supply port to the channel of the ignition gun through the internal fan.

[0025] Furthermore, the air pressure module is connected to an external air supply pipeline via a one-way valve at the air supply port, and the external air supply pipeline is connected to an external air source.

[0026] Furthermore, the ignition module is connected to the explosion-proof connector of the air pressure module via a gas supply power line and supplies power to the fan via the gas supply power line.

[0027] Furthermore, the support includes fixing clamps fixed to the outer periphery of the ignition gun and the discharge pipeline respectively, and a support rod connected between the two fixing clamps;

[0028] The bottom of the fixing clamp installed on the outside of the discharge pipeline is provided with a support leg to support the foundation.

[0029] The portable plasma ignition device provided by this utility model, as described above, has the following beneficial effects:

[0030] The plasma ignition device of this invention utilizes a plasma flame to ignite combustible gas, which has the advantages of high arc energy and reliable ignition. Moreover, the ignition device only requires a wind pressure supply of 1KPa to 2KPa to generate a plasma flame. At the same time, it can achieve autonomous gas supply or gas intake from the site through a reserved one-way interface according to site requirements. The modular design makes it easy to install and highly portable. It can be repeatedly disassembled and used in oil drilling production environments. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0032] Figure 1 This is a schematic diagram of the working state of a portable plasma ignition device disclosed in an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the internal module of the ignition control box of a portable plasma ignition device disclosed in an embodiment of this application;

[0034] Figure 3 This is a top view of a portable plasma ignition device disclosed in this application after the ignition gun and the air pressure module are connected;

[0035] Figure 4 This is an electrical control schematic diagram of the ignition control box of a portable plasma ignition device disclosed in an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Ignition control box; 2. Control panel; 3. Power cord; 4. Control cable; 5. Ignition module; 6. Gas supply power cord; 7. High-voltage cable; 8. External gas supply pipeline; 9. Air pressure module; 10. Ignition gun; 11. Arc ignition point; 12. Combustion cylinder; 13. Support component; 14. One-way gas supply port; 15. Exhaust line; 16. Power supply module; 17. Remote control module; 18. Antenna; 19. Battery; 20. Arc ignition point positive terminal; 21. Fan; 22. Explosion-proof connector; 23. High-voltage shielded wire; 24. High-voltage cable connector; 25. One-way valve for gas supply port. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0039] See Figures 1 to 3 As shown;

[0040] This embodiment discloses a portable plasma ignition device, which includes:

[0041] Ignition control box 1;

[0042] The ignition module 5 is connected to the ignition control box 1 via a control cable 4. In this embodiment, the ignition module is an existing technology product, and after purchase, explosion-proof accessories such as explosion-proof boxes and connectors were provided. More preferably, the ignition module in this embodiment is manufactured by Xi'an Kehui Thermal Engineering Technology Design and Research Institute.

[0043] The air pressure module 9 is connected to the ignition module 5, and one end of the air pressure module 9 is connected to the ignition gun 10.

[0044] The hollow interior of the ignition gun 10 forms a channel, and the high-voltage cable 7 of the ignition module 5 is connected to the high-voltage cable connector 24 of the air pressure module 9. The high-voltage shielding wire 23 inside the air pressure module 9 extends along the channel inside the ignition gun 10 and connects to the arc-starting point 11 at the end of the ignition gun 10.

[0045] The positive electrode 20 of the arc ignition point 11 ionizes the air to form a plasma flame, and ignites the combustible gas through the plasma flame.

[0046] Specifically, this embodiment discloses an ignition device for igniting combustible gases based on a plasma flame, which features a modular design and portability. First, the ignition device of this embodiment mainly includes an ignition control box 1, an ignition module 5, a wind pressure module 9, and an ignition gun 10. The ignition control box 1 is connected to the ignition module 5 via a control cable 4 to control the operation of the ignition module 5. Second, the ignition module 5 is connected to the wind pressure module 9. The ignition module 5 is connected to the wind pressure module 9 via a high-voltage cable 7, and after being connected to the high-voltage shielding wire 23 inside the high-voltage cable 7 via a high-voltage cable connector 24, it can output high-frequency high-voltage direct current and guide the current to the arc-ignition point 11 at the front end of the ignition gun 10. The positive electrode 20 of the arc-ignition point ionizes the air to form a plasma flame, which finally ignites the combustible gas, i.e., the exhaust gas of this embodiment, through the plasma flame.

[0047] This embodiment further describes the control principle of the ignition control box 1. Specifically, Q1 in the ignition control box 1 is an input circuit breaker, through which 220V power is input to the inverter, and 220V AC power is output. Q2 is an output circuit breaker, used to power the system. When the start knob is rotated, the system is powered on. There are two ways to start the ignition module: local start and remote start.

[0048] 1. When the local start button on the control panel is pressed, the KM coil is energized, the KT coil is energized, and the KM contactor is energized, which supplies power to the ignition module (AC 220V) through the 15A power output port.

[0049] 2. After pressing the start button on the remote control, the KM coil is energized, the KT coil is energized, and the KM contactor is energized, which supplies power to the ignition module (AC 220V) through the 15A power output port.

[0050] When any start button is pressed, the ignition module is powered on and starts working. After a delay, the KT coil activates, the KT contacts open, the KM coil is de-energized, the ignition indicator light goes out, and the ignition module stops working.

[0051] The inverter has two inputs: 220V AC mains and 24V DC. When AC mains is input, the inverter simultaneously outputs 220V AC mains and charges the battery. When there is a power outage, the inverter converts the 24V DC mains back to 220V AC mains and continues to output power, achieving uninterrupted power supply.

[0052] In this embodiment, based on the structure in the prior art, the combustible gas enters through the inlet end of the venting pipeline 15, and the outlet end of the venting pipeline 15 is provided with a combustion cylinder 12.

[0053] In this embodiment, one end of the arc-ignition point 11 of the ignition gun 10 is supported on the upper end of the combustion cylinder 12 by an arc-ignition point support cylinder, and the arc-ignition point support cylinder is connected to the combustion cylinder 12. Therefore, the nozzle of the ignition gun 10 in this embodiment can extend into the combustion cylinder 12 through the arc-ignition point support cylinder and ignite the combustible gas entering the combustion cylinder 12.

[0054] Preferably, in this embodiment, the ignition gun 10 is arranged in parallel with the discharge line 15, and the ignition gun 10 is connected to the discharge line 15 through multiple support members 13.

[0055] The ignition control box 1 has a control panel 2 on its exterior;

[0056] The ignition control box 1 integrates a power supply module 16 and a battery 19, and the battery 19 is electrically connected to the power supply module 16 via a power supply line;

[0057] The power interface of the ignition control box 1 is connected to an external power source via power cable 3;

[0058] The ignition control box 1 also integrates a remote control module 17 and an antenna 18 connected to the remote control module 17.

[0059] The ignition control box 1 disclosed in this embodiment has charging and remote control functions. The composition and principle of this module can be fully utilized by conventional means of existing technology. This embodiment will give a simple overview of its functions. First, the power supply module 16 is connected to an external power source, i.e., the mains power, through the power line 3. It can convert the mains power into DC power to charge the battery 19 in this embodiment. Second, after the DC power is inverted, it is output to the ignition module 5 through the control cable 4. Then, after the ignition module 5 is powered on, it outputs high-frequency high-voltage DC power and uses the high-voltage cable 7 to drive the positive electrode 20 of the arc ignition point 11 to ionize the air, and finally generate a plasma flame that can ignite combustible gas.

[0060] Preferably, the wind pressure module 9 in this embodiment is provided with a fan 21, and the lower part of the wind pressure module 9 has a one-way air supply port 14. The wind pressure module 9 guides the air entering from the one-way air supply port 14 to the channel of the ignition gun 10 through the internal fan 21.

[0061] Secondly, in this embodiment, the air pressure module 9 is connected to the external air supply pipeline 8 through the air supply port check valve 25, and the external air supply pipeline 8 is connected to an external air source.

[0062] This embodiment further defines two air supply methods for the air pressure module 9. The first method utilizes the internal fan 21 and the one-way air supply port 14 to draw external air into the air pressure module 9. Since the air pressure module 9 is connected to the barrel of the ignition gun 10, air can be drawn into the ignition gun 10 and ultimately delivered to the arc ignition point 11. The second method utilizes other external air sources on site. Therefore, in this embodiment, the air pressure module 9 is also connected to an external air supply pipeline 8 through the one-way valve 25 at the air supply port, and this external air supply pipeline 8 is connected to an external air source to deliver gas into the air pressure module 9. Either air supply method can be selected according to the actual operating conditions.

[0063] In order to drive the aforementioned fan 21, the ignition module 5 of this embodiment is connected to the explosion-proof connector 22 of the air pressure module 9 via the gas supply power line 6 and supplies power to the fan 21 via the gas supply power line 6.

[0064] Preferably, the support member 13 in this embodiment includes fixing clamps that are respectively fixed to the outer periphery of the ignition gun 10 and the discharge line 15, and a support rod connected between the two fixing clamps;

[0065] The bottom of the fixing clamp installed on the outside of the discharge line 15 is provided with a support leg to support the foundation.

[0066] The support member 13 in this embodiment is solely for the purpose of facilitating the arrangement of the ignition gun 10 and maintaining a certain positional relationship between the ignition gun 10 and the discharge pipeline 15. Therefore, the structure of the support member 13 can be varied and not unique. It can be fixed to the corresponding pipeline using conventional clamps, and then supported and connected by detachable support rods and legs. The detachable method can be the connection method of fasteners such as bolts.

[0067] Furthermore, for ease of use, the ignition control box 1 in this embodiment can be operated on-site or remotely controlled via its internal remote control module 17. A suitable remote control module 17 can be selected to achieve the maximum distance operation requirement.

[0068] The portable plasma ignition device provided by this utility model, as described above, has the following beneficial effects:

[0069] The plasma ignition device of this invention utilizes a plasma flame to ignite combustible gas, which has the advantages of high arc energy and reliable ignition. Moreover, the ignition device only requires a wind pressure supply of 1KPa to 2KPa to generate a plasma flame. At the same time, it can achieve autonomous gas supply or gas intake from the site through a reserved one-way interface according to site requirements. The modular design makes it easy to install and highly portable. It can be repeatedly disassembled and used in oil drilling production environments.

[0070] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable plasma ignition device, characterized in that, The device includes: Ignition control box (1); The ignition module (5) is connected to the ignition control box (1) via a control cable (4); and The air pressure module (9) is connected to the ignition module (5), and one end of the air outlet of the air pressure module (9) is connected to the ignition gun (10); The hollow interior of the ignition gun (10) forms a channel. The high-voltage cable (7) of the ignition module (5) is connected to the high-voltage cable connector (24) of the wind pressure module (9). The high-voltage shielding wire (23) inside the wind pressure module (9) extends along the channel inside the ignition gun (10) and connects to the arc-starting point (11) at the end of the ignition gun (10). The positive electrode (20) of the arc ignition point (11) forms a plasma flame by ionizing air, and ignites the combustible gas through the plasma flame.

2. The portable plasma ignition device according to claim 1, characterized in that, Combustible gas enters through the inlet end of the venting line (15), and the outlet end of the venting line (15) is provided with a combustion tube (12); One end of the arc-starting point (11) of the ignition gun (10) is supported on the upper end of the combustion cylinder (12) by an arc-starting point support cylinder, and the arc-starting point support cylinder is connected to the combustion cylinder (12).

3. A portable plasma ignition device according to claim 2, characterized in that, The ignition gun (10) is arranged in parallel with the discharge pipeline (15), and the ignition gun (10) is connected to the discharge pipeline (15) through multiple support members (13).

4. A portable plasma ignition device according to claim 1, characterized in that, The ignition control box (1) has a control panel (2) on its exterior; The ignition control box (1) integrates a power supply module (16) and a battery (19), and the battery (19) is electrically connected to the power supply module (16) through a power supply line; The power interface of the ignition control box (1) is connected to an external power source via a power cord (3); The ignition control box (1) also integrates a remote control module (17) and an antenna (18) connected to the remote control module (17).

5. A portable plasma ignition device according to claim 1, characterized in that, The air pressure module (9) is equipped with a fan (21), and the lower part of the air pressure module (9) has a one-way air supply port (14). The air pressure module (9) guides the air entering from the one-way air supply port (14) to the channel of the ignition gun (10) through the internal fan (21).

6. A portable plasma ignition device according to claim 5, characterized in that, The air pressure module (9) is connected to the external air supply pipeline (8) through the air supply port check valve (25), and the external air supply pipeline (8) is connected to an external air source.

7. A portable plasma ignition device according to claim 5, characterized in that, The ignition module (5) is connected to the explosion-proof connector (22) of the air pressure module (9) via the gas supply power line (6) and supplies power to the fan (21) via the gas supply power line (6).

8. A portable plasma ignition device according to claim 3, characterized in that, The support member (13) includes a fixing clamp that is fixed to the outer periphery of the ignition gun (10) and the discharge pipeline (15) respectively, and a support rod connected between the two fixing clamps; The bottom of the fixing clamp installed on the outside of the discharge pipeline (15) is provided with a support leg to support the foundation.

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