Ever-burning fire automatic ignition assembly of open flow pool
By combining a PLC main control system and a plasma ignition rod, automatic ignition of the permanent flame in the venting pool was achieved, solving the problems of high operational risks and diesel medium in existing technologies, and realizing safe and reliable remote control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, the ignition process of the permanent flame in the venting pool is dangerous and difficult to control, especially in the presence of toxic and harmful gases. Furthermore, the use of diesel as the ignition medium presents fuel management problems.
An automatic ignition assembly consisting of a PLC main control system, a high-voltage generator, a plasma ignition rod, and a flame sensor is used to achieve automatic ignition of the pilot flame through remote control. The flame is maintained by plasma ignition source and high-pressure gas, eliminating the need for manual operation.
It enables intelligent remote control of the permafrost in the venting pool, improving safety and reliability, avoiding harm from toxic gases, and eliminating the need for diesel ignition medium, thus enhancing safety.
Smart Images

Figure CN224134621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an oilfield ignition device, or more precisely, an automatic ignition component for a blowout pool's permanent flame. Background Technology
[0002] Currently, after gas well fracturing is completed, formation water needs to be released into the venting pool. Generally, a pilot light is lit in the venting pool before venting begins. When gas is released, the pilot light will ignite the vent. Since the amount of liquid released at the beginning of venting is large, there is a high probability that no gas will be released. Gas will start to be released after the liquid reaches a certain level. At the same time, the pilot light is easily extinguished by water vapor, water mist, and splashing water during venting. Therefore, it is difficult for the pilot light to ignite the vent in one go during venting. The commonly used method is to ignite it manually in the venting pool. However, there are dangers in the ignition process. In addition, the environment of the venting pool is complex and may contain hydrogen sulfide and other toxic and harmful gases. The ignition medium is diesel, which raises fuel management and ignition safety issues. Utility Model Content
[0003] Therefore, it is necessary to provide an automatic ignition component for the permaluminator flame in the blowdown pool to address the aforementioned technical problems.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] An automatic ignition assembly for a blowout pool's permanent flame is characterized in that it comprises a PLC main controller and a high-voltage generator. The PLC main controller is connected to the high-voltage generator via a first control harness, and to a power supply module via a second control harness. The power supply module is connected to an electrical control cabinet via a third control harness, and to a flame sensor via a fourth control harness. The flame sensor is positioned above or inside the blowout pool.
[0006] The high-voltage generator is connected to a plasma ignition rod. The head of the plasma ignition rod is equipped with an ignition burner that extends into the interior of the discharge pool. The end of the ignition burner is equipped with a nozzle and an air blowing nozzle. The air blowing nozzle is connected to a solenoid valve through a first air supply line. The solenoid valve is connected to a high-pressure gas source through a second air supply line. The solenoid valve is connected to the PLC main controller through a fifth control harness.
[0007] In a preferred embodiment of this utility model, the high-voltage generator is equipped with a timer.
[0008] In a preferred embodiment of this utility model, the flame sensor is a multi-band optical sensor.
[0009] In a preferred embodiment of this utility model, the air blowing nozzle is located close to the nozzle.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] This invention provides an automatic ignition component for the pilot flame of a blowout pool. This component enables intelligent remote control ignition, eliminating the need for on-site personnel operation, effectively preventing harm from toxic and harmful gases, and improving safety. Because it employs plasma ignition, diesel fuel is not required as the ignition medium, resulting in high safety and reliability. Attached Figure Description
[0012] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the automatic ignition assembly for the permafrost in the blowout tank according to this utility model.
[0014] The markings in the diagram are explained as follows: 1. Flame sensor; 10. Nozzle; 11. Air nozzle; 12. Solenoid valve; 13. High-pressure gas source; 14. Second control harness; 15. Third control harness; 16. Electrical control cabinet; 17. Fourth control harness; 18. Second gas supply line; 19. Fifth control harness; 2. First control harness; 20. First gas supply line; 3. Ignition burner; 4. Exhaust tank; 5. Plasma ignition rod; 6. Power module; 7. PLC main controller; 8. High-pressure generator; 9. Timer. Detailed Implementation
[0015] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0016] like Figure 1 As shown, the automatic ignition assembly for the permafrost in the blowout pool includes a PLC main controller 7 and a high-voltage generator 8. The PLC main controller 7 is connected to the high-voltage generator 8 through a first control harness 2. The PLC main controller 7 is connected to a power module 6 through a second control harness 14. The power module 6 is connected to an electrical control cabinet 16 through a third control harness 15. The PLC main controller 7 is connected to a flame sensor 1 through a fourth control harness 17. The flame sensor 1 is located above the blowout pool 4.
[0017] It should be noted that the flame sensor 1 can also be placed in other locations of the blowout pool 4, such as inside or around the blowout pool 4, and can be arranged according to actual needs.
[0018] The high-voltage generator 8 is connected to a plasma ignition rod 5. The head of the plasma ignition rod 5 is provided with an ignition burner 3, which extends into the interior of the discharge pool 4. The end of the ignition burner 3 is provided with a nozzle 10. The ignition burner 3 is provided with an air blowing nozzle 11, which is close to the nozzle 10. The air blowing nozzle 11 is connected to a solenoid valve 12 through a first air supply line 20. The solenoid valve 12 is connected to a high-pressure gas source 13 through a second air supply line 18. The solenoid valve 12 is connected to the PLC main controller 7 through a fifth control harness 19.
[0019] It should be noted that the flame sensor 1 is a multi-band optical sensor. Of course, the flame sensor 1 can also be other sensors, such as a temperature sensor, as long as it can detect flames.
[0020] Alternatively, the fourth control harness 17 can also be replaced by wireless communication, thereby enabling remote operation.
[0021] The working principle of the automatic ignition component for the blowout pool is explained below.
[0022] When the flame sensor 1 detects that the pilot flame in the flaming pool 4 has been extinguished, the signal from the flame sensor 1 is sent to the PLC main controller 7 via the fourth control harness 17. The PLC main controller 7 then activates the high-voltage generator 8, which in turn activates the plasma ignition rod 5, causing the igniter 3 to discharge into the air. The ionized air generates a plasma ignition source, which ignites the pilot flame in the flaming pool 4. At this time, the ignition power is 1000W, the ignition energy is greater than or equal to 2500J, the flame length is greater than or equal to 100mm, and the temperature is greater than or equal to 1000℃.
[0023] At this time, the PLC main controller 7 opens the solenoid valve 12, and the high-pressure air source 13 continuously supplies high-pressure air to the air nozzle 11 through the second air supply line 18 and the first air supply line 20, thereby maintaining the length and direction of the flame and improving combustion efficiency. In addition, the high-pressure air can also provide a cooling function for the nozzle 10, extending the service life of the nozzle 10.
[0024] It should be noted that a timer 9 can also be set on the high-voltage generator 8. The timer 9 can cause the high-voltage generator 8 to start at regular intervals, thereby igniting the ignition burner 3 within a set time period.
[0025] This automatic ignition system for the blowout tank allows for intelligent remote control of ignition, eliminating the need for on-site personnel and effectively preventing harm from toxic gases, thus improving safety. Because it uses plasma ignition, diesel fuel is not required as an ignition medium, resulting in high safety and reliability.
[0026] However, this is not the only possibility. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.
Claims
1. A blowdown pit flare automatic ignition assembly, comprising: The automatic ignition assembly for the blowout pool includes a PLC main controller (7) and a high-voltage generator (8). The PLC main controller (7) is connected to the high-voltage generator (8) via a first control harness (2). The PLC main controller (7) is connected to a power module (6) via a second control harness (14). The power module (6) is connected to an electrical control cabinet (16) via a third control harness (15). The PLC main controller (7) is connected to a flame sensor (1) via a fourth control harness (17). The flame sensor (1) is located above or inside the blowout pool (4). The high-pressure generator (8) is connected to a plasma ignition rod (5). The head of the plasma ignition rod (5) is provided with an ignition burner (3). The ignition burner (3) extends into the interior of the discharge pool (4). The end of the ignition burner (3) is provided with a nozzle (10). The ignition burner (3) is provided with an air blowing nozzle (11). The air blowing nozzle (11) is connected to a solenoid valve (12) through a first gas supply line (20). The solenoid valve (12) is connected to a high-pressure gas source (13) through a second gas supply line (18). The solenoid valve (12) is connected to the PLC main controller (7) through a fifth control harness (19).
2. The blow pit long-lasting fire automatic ignition assembly according to claim 1, characterized in that, The high voltage generator (8) is equipped with a timer (9).
3. The blow pit long-lasting fire automatic ignition assembly of claim 1, wherein, The flame sensor (1) is a multi-band optical sensor.
4. The blow pit long-lasting fire automatic ignition assembly of claim 1, wherein, The air nozzle (11) is close to the nozzle (10).