Multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device and method

Abstract

The invention discloses a multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device and method, and relates to the technical field of crossing of fire engineering and civil engineering technologies. Comprising a multi-channel asynchronous regulation and control non-uniform temperature field combustion system, an AI intelligent iteration control system, a modular integration system, a multi-modal monitoring system and a multi-dimensional wind field simulation system. A multi-channel combustion vehicle of the combustion system is integrated with multiple groups of independent gas and air pipelines, and gas and air are equivalently and uniformly distributed and supplied through a multi-stage symmetrical flow distribution structure; a plurality of combustion groups are distributed on the surface of the combustion vehicle shell, and each combustion group is provided with a main combustion nozzle and a central premixing combustion nozzle; the AI system optimizes the opening degree of a gas valve and the inclination angle of a fan in a self-adaptive mode; the modularized skid-mounted unit is integrated with fuel gas supply, power distribution control and explosion-proof fire extinguishing devices; a multi-modal monitoring system and a matrix axial flow fan are combined, and the coupling effect of a dynamic non-uniform temperature field and an environment wind field in scenes such as buildings, tunnels and bridges can be accurately reproduced.

Description

Technical Field

[0001] The present invention relates to the technical field of intersection of fire protection engineering and civil engineering technology, and more particularly to a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device and method. Background Art

[0002] Fire, a highly destructive disaster, poses a significant threat to the safety of complex structures such as buildings, transportation hubs, and underground spaces. The ISO 834 standard temperature-rise curve, widely used in fire safety assessments, has long served as a benchmark for structural fire resistance testing. However, this curve is based on an idealized fire scenario and fails to account for the significant impact of dynamic fluctuations in heat release rates, fuel distribution variations, and ambient wind conditions on the heating process in a real fire. Consequently, its static, single-valued temperature-time relationship no longer meets the sophisticated requirements of modern engineering structure fire resistance research.

[0003] Traditional combustion devices often use homogenized heating or preset temperature rise patterns, making it impossible to dynamically adjust the heat release rate to match the energy release characteristics of historical fire scenarios. For example, when simulating fires in large-span buildings, existing equipment lacks the ability to independently control multiple zones, making it difficult to replicate the synergistic effect of localized high-temperature zones and smoke spread. Furthermore, in bridge cable fire tests, it is impossible to simulate the dynamic erosion of protective coatings by flames in crosswind environments. This technical shortcoming results in a lack of correlation between structural fire resistance test data and actual fire damage patterns, limiting the reliability of fire resistance design and post-disaster assessments.

[0004] Existing combustion devices often rely on preset temperature curves and lack real-time feedback control over the heat release rate of the fire source, making it difficult to dynamically simulate the interactions between fuel consumption, ventilation conditions, and thermal radiation in real fires. When simulating open-space fires, traditional equipment ignores the impact of ambient wind speed on the flame inclination angle and heat transfer efficiency, resulting in significant deviations between the test temperature field distribution and the real-world scenario. For example, in bridge cable fire tests, the dynamic erosion of protective coatings by flames in crosswind environments cannot be simulated. Furthermore, existing equipment lacks the ability to independently control multiple zones, making it difficult to replicate the realistic fire environment of localized, non-uniform high-temperature zones when simulating fires in large-span buildings and narrow, confined spaces such as tunnels. Furthermore, the fixed heating rate control mode cannot adapt to the varying combustion characteristics of various types of combustibles. This technical shortcoming results in a lack of correlation between structural fire resistance test data and actual fire damage patterns, limiting the reliability of fire-resistant design and post-disaster assessments.

[0005] Furthermore, existing test platforms are limited by fixed architectures and rigid control logic, making them unable to rapidly reconstruct historical fire scenarios or adapt to the demands of reproducing fires of varying spatial scales and combustible types. Uncovering the thermodynamic behavior of structures in real fires through high-fidelity simulations has become a core challenge in enhancing the scientific nature of fire safety research.

[0006] To address the above issues, there is an urgent need for a fire simulation technology based on the dual-factor regulation of heat release rate and temperature, which can break through the static limitations of the traditional standard curve through dynamic feedback of combustion intensity and environmental parameters. Summary of the Invention

[0007] In view of this, the present invention provides a dynamic non-uniform temperature field skid-mounted combustion device and method with multi-channel asynchronous control. It proposes to use the heat release rate as the core control variable, combine it with real-time temperature field feedback, and construct an adaptive dynamic temperature rise curve, providing a high-fidelity experimental basis for fire safety research in complex scenarios.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A multi-channel asynchronously controlled non-uniform temperature field combustion system comprises a multi-channel combustion vehicle, which is provided with an arc-shaped shell, and a plurality of independent air intake interfaces and air intake interfaces are provided on the side of the arc-shaped shell, and a plurality of combustion groups are evenly distributed on the outer surface of the arc-shaped shell, and a premixed gas chamber is provided at the bottom of each combustion group; each premixed gas chamber is connected to a group of air intake interfaces and air intake interfaces, and the air intake interfaces are connected to the premixed gas chamber through a multi-stage evenly distributed air intake pipe structure, and the air intake interfaces are connected to the premixed gas chamber through an air intake duct; the air intake interfaces are connected to a gas pipeline capable of adjusting the gas flow, and the air intake interfaces are connected to a fan duct capable of adjusting the air flow, and combustion in a non-uniform temperature field is achieved by independently controlling the ratio of gas and air in each channel.

[0010] Preferably, a central premix burner and several main burners are provided in the combustion group; the multi-stage evenly distributed intake pipe structure supplies an equal amount of gas to each main burner and the central premix burner; the multi-stage evenly distributed intake pipe structure includes a central branch pipe for supplying gas to the central premix burner and several symmetrical diversion pipes for independently supplying gas to each main burner, the lower end of the symmetrical diversion pipe is connected to the intake pipe after merging with the lower end of the central branch pipe, the intake pipe is connected to the intake interface, the gas enters the premixed gas chamber from the symmetrical diversion pipes and the central branch pipe, is fully premixed with the air in the premixed gas chamber to form a uniform premixed gas to serve as fuel for the main burner and the central premixed burner.

[0011] Preferably, each of the main burners corresponds to a symmetrical diversion pipe extending into the premixed gas chamber, the symmetrical diversion pipe is connected to a first-level symmetrical branch and a second-level dynamic balance branch, and the air intake pipe is connected to the premixed gas chamber in sequence through the first-level symmetrical branch, the second-level dynamic balance branch, and the symmetrical diversion pipe.

[0012] Preferably, several groups of long strip combustion groups are evenly arranged along the circumferential direction of the outer surface of the arc-shaped shell, and each group of long strip combustion groups has 4 or 6 main burners and a central premixing burner evenly distributed along its long axis; the central premixing burner is located at the center of the long axis direction of the long strip combustion group, and the main burners are symmetrically distributed on both sides of the central premixing burner along the long axis direction of the long strip combustion group; the central premixing burner has a built-in high-energy pulse electric spark igniter.

[0013] The present invention also provides a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device, including the multi-channel asynchronously controlled non-uniform temperature field combustion system, and also including an AI intelligent iterative control system, a modular movable skid-mounted integrated system, a multi-modal fire scene environment monitoring system and a multi-dimensional wind field simulation system; the multi-channel asynchronously controlled non-uniform temperature field combustion system is used to simulate the dynamic non-uniform temperature field combustion state; the modular movable skid-mounted integrated system is used to provide the multi-channel asynchronously controlled non-uniform temperature field combustion system with adjustable flow of gas and air, the multi-dimensional wind field simulation system corresponds to the multi-channel asynchronously controlled non-uniform temperature field combustion system, and is used to simulate on-site wind field conditions, the multi-modal fire scene environment monitoring system is used to monitor flame morphology, temperature field and wind field data, the AI ​​intelligent iterative control system uses the LSTM model to fuse flame morphology, temperature field and wind field data in real time, and dynamically optimizes the flow control of gas pipelines and fan pipelines.

[0014] Preferably, the modular movable skid-mounted integrated system includes the first skid-mounted unit and the second skid-mounted unit; the first skid-mounted unit integrates a gas cylinder or fuel tank, a vaporization furnace, an explosion-proof fire extinguishing device, an explosion-proof lighting device and the gas pipeline; the second skid-mounted unit integrates a power distribution cabinet, an electrical control cabinet, a high-pressure centrifugal fan and the fan pipeline.

[0015] Preferably, the first skid-mounted unit is a container skid-mounted unit, and the explosion-proof fire extinguishing device includes an explosion-proof control cabinet, an explosion-proof fan, a combustible gas detector and several suspended ultra-fine dry powder fire extinguishers; the explosion-proof fan is symmetrically arranged on the inner wall of the first skid-mounted unit container; the exhaust vent of the first skid-mounted unit container is installed with explosion-proof shutters; the combustible gas detector is hung on the accessory flange joint of the gas pipeline and above the gas cylinder or fuel tank to detect combustible gas leakage; the suspended ultra-fine dry powder fire extinguisher is hung on the ceiling of the first skid-mounted unit container, and the explosion-proof fan, combustible gas detector and suspended ultra-fine dry powder fire extinguisher are all electrically connected to the explosion-proof control cabinet; the explosion-proof control cabinet is connected to a The touch panel can display the gas concentration, fan status and fire extinguisher pressure data in real time. When the combustible gas detector detects that the gas concentration exceeds the standard, the explosion-proof control cabinet starts the explosion-proof fan for forced exhaust, and at the same time activates the suspended ultra-fine dry powder fire extinguisher in the corresponding area to release dry powder, thereby realizing the full process automation of explosion prevention, fire extinguishing and risk elimination; the explosion-proof lighting device includes a plurality of explosion-proof lamps, which are symmetrically installed on the ceiling of the first skid-mounted unit container, and are connected in parallel to the explosion-proof control cabinet. The lighting switch control module of the explosion-proof lamp is integrated in the touch panel. When the combustible gas detector alarms or the suspended ultra-fine dry powder fire extinguisher is started, the touch panel automatically switches the lighting mode to the emergency high-brightness state.

[0016] Preferably, the gas pipeline includes a main pipeline provided with a multi-channel confluence interface, one end of the main pipeline is connected to several gas cylinders or fuel tanks through a high-pressure hose and an explosion-proof quick-connect joint, and the other end of the main pipeline away from the gas cylinders or fuel tanks is connected in series with a vaporizer and a gas main shut-off valve in sequence and then divided into several branches, each branch of the main pipeline is sequentially connected to an intelligent pressure reducing valve with pressure feedback and an intelligent valve positioner with an integrated LCD screen, the input end of the intelligent valve positioner is connected to the pressure stabilizing branch of the air compressor through a filter, and the output end of the intelligent valve positioner is connected to the air inlet interface through a corrugated flame arrester; the second skid-mounted unit is a container skid-mounted unit Element, the power distribution cabinet, the electrical control cabinet, and the high-pressure centrifugal fan are arranged in the second skid-mounted unit container. The power distribution cabinet can be connected to an external power supply to power the various systems of the multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device. The electrical control cabinet has a built-in PLC controller and a communication module to achieve coordinated control of the various systems. The fan duct is arranged on the second skid-mounted unit container corresponding to the high-pressure centrifugal fan, and an electronic flow control valve is provided on the fan duct; the electrical control cabinet, intelligent valve positioner, electronic flow control valve, intelligent pressure reducing valve are communicatively connected to the AI ​​intelligent iterative control system.

[0017] Preferably, the multi-dimensional wind field simulation system includes several high-dynamic axial flow fans, which are distributed in a matrix topology. Each high-dynamic axial flow fan is equipped with an independent frequency converter. The multi-modal fire scene environment monitoring system includes a fire scene panoramic video acquisition unit, a fire scene space temperature field monitoring unit and a wind speed monitoring unit. The fire scene panoramic video acquisition unit is used to capture the visible light and thermal radiation images of the dynamic non-uniform temperature field state fire scene simulated by the multi-channel asynchronous control non-uniform temperature field combustion system in real time, and monitor the fire scene panoramic video; the fire scene space temperature field monitoring unit is composed of distributed thermocouples and infrared thermometers, and is used to collect fire scene space temperature distribution data in real time and generate a three-dimensional temperature field model; the wind speed monitoring unit is composed of an ultrasonic anemometer and a pressure sensor, and is used to monitor the wind speed, wind direction and wind pressure data of the wind field simulated by the multi-dimensional wind field simulation system in real time; the data monitored by the multi-modal fire scene environment monitoring system is transmitted in real time to the AI ​​intelligent iterative control system on the computer side through the communication network.

[0018] The present invention also provides a method for implementing a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device, which specifically includes the following steps:

[0019] S1: Transport the first skid-mounted unit, the second skid-mounted unit, the multi-channel combustion vehicle, the multi-modal fire environment monitoring system, and the multi-dimensional wind field simulation system to the target site and move them to the preset position;

[0020] S2: Activate the explosion-proof fire extinguishing device in the first skid-mounted unit. The explosion-proof control cabinet, combustible gas detector, and suspended ultra-fine dry powder fire extinguisher form a linked fire extinguishing system, which monitors the gas concentration in the first skid-mounted unit in real time and maintains full operation. If the combustible gas detector detects that the gas concentration in the first skid-mounted unit is ≥25%LEL at any time, immediately activate the suspended ultra-fine dry powder fire extinguisher, cut off the power supply, and stop the test immediately.

[0021] S3: Connect the gas pipeline of the first skid-mounted unit to the air inlet interface of the multi-channel combustion vehicle through explosion-proof quick-connect flanges. Connect the output end of the power distribution cabinet of the second skid-mounted unit to the power interface of the multi-channel combustion vehicle and the power supply port of the high-dynamic axial flow fan through waterproof cables. Connect the communication interface of the electrical control cabinet to the PLC controller of the multi-channel combustion vehicle and the high-dynamic axial flow fan through shielded twisted pair cables.

[0022] S4: Input the target fire scene parameters, including flame shape, temperature gradient, and wind speed vector, into the AI ​​intelligent iterative control system on the computer to generate an initial control instruction set;

[0023] S5: Start the gas supply system and air compressor, dynamically adjust the gas flow and air flow through the intelligent valve positioner and electronic flow control valve, and synchronously drive the high-dynamic axial flow fan to generate a preset wind field;

[0024] S6: Triggering a high-energy pulse spark igniter to ignite the flame, activating the multi-modal fire environment monitoring system, and providing real-time feedback on flame shape, temperature field, and wind field data to the AI ​​intelligent iterative control system;

[0025] S7: The AI ​​intelligent iterative control system uses an LSTM model to iteratively optimize the intelligent valve positioner, electronic flow control valve opening, and high-dynamic axial fan pitch instructions based on the deviation between real-time data and preset parameters. By controlling the combustion state and wind field data of different combustion groups in the multi-channel combustion vehicle, it can achieve dynamic non-uniform temperature field simulation of the target fire scenario.

[0026] S8: When the test ends, the AI ​​intelligent iterative control system closes the intelligent pressure reducing valve and stops the operation of the high-dynamic axial flow fan and the high-pressure centrifugal fan;

[0027] S9: Stores full-cycle test data packages, including flame morphology dynamic sequence, temperature field distribution matrix, and wind field control log, for fire scene reproduction and analysis.

[0028] Beneficial effects

[0029] As can be seen from the above technical solutions, compared with the prior art, the present invention provides a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device and method, which has the following beneficial effects:

[0030] 1. Ability to achieve high-fidelity physical presentation of spatial non-uniform temperature fields: Through the design of multiple independent multi-stage evenly distributed intake pipe structures and premixed gas chambers, natural even flow distribution and uniform premixing of gas and air are achieved, solving the problem of low combustion efficiency caused by uneven distribution and imbalanced proportions of gas and air at each burner of traditional burners, that is, insufficient air for incomplete combustion or insufficient gas for ignition. Through the intake and air inlet pipelines of multiple independent channels, the premixed gas ratio of gas and air can be adjusted in real time, and different independent channels work independently without interfering with each other, realizing independent control of the flame size of each channel. Finally, under the control of the AI ​​intelligent iterative control system, the physically realistic presentation of spatial non-uniform temperature fields is achieved.

[0031] 2. Ability to improve fire simulation accuracy and adaptability: Through the multi-channel asynchronous control of the non-uniform temperature field combustion system, AI intelligent iterative control system and multi-dimensional wind field simulation system, it can accurately reproduce the dynamic non-uniform temperature field and environmental wind field coupling effects in scenes such as buildings, tunnels, and bridges. This breaks through the limitation of traditional combustion devices that cannot dynamically control the heat release rate to match the actual fire scene, making fire simulation closer to the real situation and providing a high-fidelity experimental basis for fire safety research. It solves the problem that existing equipment has difficulty in reproducing the synergistic effect of local high temperature zones and smoke spread when simulating fires in large-span buildings and fires in narrow and confined spaces, as well as the defect of being unable to simulate the dynamic erosion process of flames on protective coatings in crosswind environments in bridge cable fire protection tests. It can meet the needs of fire reproduction of different spatial scales and combustible types.

[0032] 3. Improve system flexibility and convenience: Integrating gas supply, power distribution control, and explosion-proof fire extinguishing equipment into modular skid-mounted units facilitates transportation and rapid deployment, enabling quick adaptation to the needs of different sites. At the same time, two skid-mounted units can be quickly connected to achieve seamless transmission of fuel, electricity, wind power, and data, greatly improving the flexibility and maneuverability of the device.

[0033] 4. Enhanced safety performance: The explosion-proof fire-extinguishing device in the first skid-mounted unit consists of an explosion-proof control cabinet, an explosion-proof fan, a combustible gas detector and a suspended ultra-fine dry powder fire extinguisher, forming an interlocking system that can monitor the gas concentration in the skid-mounted unit in real time. Once the gas concentration is detected to exceed the standard, the explosion-proof fan can be immediately started for forced exhaust, and the suspended ultra-fine dry powder fire extinguisher can be triggered to release dry powder, realizing full-process automation of explosion prevention, fire extinguishing and risk elimination, effectively ensuring the safety of the test process; the explosion-proof lighting device has an emergency highlight function. When the combustible gas detector alarms or the suspended ultra-fine dry powder fire extinguisher is started, the lighting mode is automatically switched to provide sufficient lighting for emergency operations, further improving the efficiency and safety of emergency response.

[0034] 5. Capable of intelligent regulation and data management: The AI ​​intelligent iterative control system has an embedded LSTM model, which can integrate flame morphology, temperature field and wind field data in real time, dynamically optimize the gas valve opening and fan inclination angle, and realize intelligent regulation of the combustion process, thereby improving the automation and adaptability of the combustion device, and ensuring the precise control and reproduction of real fire test conditions. During the test, the AI ​​intelligent iterative control system can store full-cycle test data packets, including the dynamic sequence of flame morphology, the temperature field distribution matrix and the wind field regulation log, providing detailed and accurate data support for fire scene reproduction analysis, which is conducive to in-depth research on the occurrence and development process of fire and the thermodynamic behavior of the structure in a real fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] Figure 1 This is a schematic diagram of the overall structure of the multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device provided by the present invention;

[0037] Figure 2 A schematic structural diagram of a multi-channel combustion vehicle according to an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of a multi-stage equally distributed intake pipe structure according to an embodiment of the present invention;

[0039] Figure 4 A schematic structural diagram of a first skid-mounted unit according to an embodiment of the present invention;

[0040] Figure 5 A schematic structural diagram of a second skid-mounted unit according to an embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the gas pipeline structure of an embodiment provided by the present invention.

[0042] In the picture:

[0043] 1. Multi-dimensional wind field simulation system; 2. Multi-channel asynchronous control of non-uniform temperature field combustion system; 3. First skid-mounted unit; 4. Second skid-mounted unit; 5. Gas pipeline; 6. Electronic flow control valve; 7. Fan pipeline; 101. High-dynamic axial flow fan; 102. Frequency converter; 103. Universal locking roller assembly; 201. Premixed gas chamber; 202. Arc-shaped housing; 203. Air inlet interface; 204. Air inlet interface; 205. Long strip combustion group; 206. Main burner; 207. Central premixed burner; 208. High-energy pulse electric spark igniter; 209. Symmetrical diversion pipeline; 210. Central branch pipe; 211. First-level symmetrical branch; 212. Second-level dynamic balance branch; 213. Air intake duct; 301. Gas cylinder or fuel tank; 302. Vaporization furnace; 303. Explosion-proof control cabinet; 304. Explosion-proof fan; 305. Combustible gas detector; 306. Suspended ultrafine dry powder fire extinguisher; 307. Container; 308. Explosion-proof shutters; 309. Fire extinguisher ring hanging bracket; 310. Touch panel; 311. LED explosion-proof lamp; 312. Explosion-proof junction box; 401. Power distribution cabinet; 402. Electrical control cabinet; 403. High-pressure centrifugal fan; 404. Explosion-proof lighting device; 501. Main pipeline; 502. Main gas shut-off valve; 503. Intelligent pressure reducing valve; 504. Intelligent valve positioner; 505. Filter; 506. Bellows flame arrester. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example:

[0046] like Figure 1As shown, this embodiment provides a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device, including a multi-channel asynchronously controlled non-uniform temperature field combustion system 2, an AI intelligent iterative control system, a modular movable skid-mounted integrated system, a multi-modal fire scene environment monitoring system and a multi-dimensional wind field simulation system 1. The multi-channel asynchronously controlled non-uniform temperature field combustion system 2 is used to simulate the dynamic non-uniform temperature field state by setting an independently controlled multi-channel combustion vehicle; the modular movable skid-mounted integrated system is used to provide the multi-channel asynchronously controlled non-uniform temperature field combustion system 2 with a gas pipeline 5 and an air inlet pipeline that can adjust the gas flow. The multi-dimensional wind field simulation system 1 corresponds to the multi-channel asynchronously controlled non-uniform temperature field combustion system 2 and is used to simulate on-site wind field conditions. The multi-modal fire scene environment monitoring system is used to monitor flame shape, temperature field and wind field data. The AI ​​intelligent iterative control system uses an LSTM model to fuse flame shape, temperature field and wind field data in real time to dynamically optimize the flow control of the gas pipeline 5 and the air inlet pipeline.

[0047] The modular movable skid-mounted integrated system consists of two independent skid-mounted units, namely the first skid-mounted unit 3 and the second skid-mounted unit 4, which are connected to each other. The connection method adopts the existing connection method well known to those skilled in the art. The first skid-mounted unit 3 integrates a gas cylinder or fuel tank 301, a vaporizer 302, an explosion-proof fire extinguishing device, an explosion-proof lighting device 404 and a gas pipeline 5. The gas cylinder or fuel tank 301 storing combustible gas is connected to the vaporizer 302 to convert liquid fuel into gaseous fuel. The gas pipeline 5 includes a high-pressure pipeline, valves and safety devices to achieve stability and safety of fuel transportation. The explosion-proof fire extinguishing device The first skid-mounted unit 3 is designed to ensure safe ventilation, prevent industrial explosions, and extinguish fires in a timely manner; the second skid-mounted unit 4 integrates a power distribution cabinet 401, an electrical control cabinet 402, an explosion-proof lighting device 404, and a high-pressure centrifugal fan 403. The power distribution cabinet 401 is used to provide power for the entire device, and the electrical control cabinet 402 has a built-in PLC controller and communication module to achieve coordinated control of various systems; the two skid-mounted units adopt a standardized interface design, which can be quickly connected and realize seamless transmission of fuel, electricity, wind power and data. At the same time, they are equipped with a multi-degree-of-freedom universal locking roller group 103 for easy transportation and fixation.

[0048] The multi-channel asynchronously controlled non-uniform temperature field combustion system 2 includes a multi-channel combustion vehicle, which is provided with an arc-shaped shell 202, and several groups of independent air intake interfaces 204 and air intake interfaces 203 are provided on the side of the arc-shaped shell 202. Several combustion groups are evenly distributed on the outer surface of the arc-shaped shell 202, and a premixed gas chamber 201 is provided at the bottom of each combustion group; each premixed gas chamber 201 is connected to a group of air intake interfaces 204 and air intake interfaces 203, and the air intake interfaces 204 are connected to the premixed gas chamber 201 through a multi-stage evenly distributed air intake pipe structure, and the air intake interfaces 203 are connected to the premixed gas chamber 201 through an air intake pipe; the air intake interface 204 is connected to a gas pipeline 5 capable of adjusting the gas flow rate, and the air intake interface 203 is connected to a fan pipeline 7 capable of adjusting the air flow rate. By independently controlling the ratio of gas and air in each channel, combustion in a non-uniform temperature field is achieved.

[0049] A central premix burner 207 and several main burners 206 are provided in the combustion group; the multi-stage evenly distributed air intake pipe structure supplies an equal amount of gas to each main burner 206 and the central premix burner 207; the multi-stage evenly distributed air intake pipe structure includes a central branch pipe 210 for supplying gas to the central premix burner 207 and several symmetrical diversion pipes 209 for independently supplying gas to each main burner 206, the lower end of the symmetrical diversion pipe 209 merges with the lower end of the central branch pipe 210 and is connected to the air intake pipe 213, the air intake pipe 213 is connected to the air intake interface 204, and the gas enters the premixed gas chamber 201 from the symmetrical diversion pipe 209 and the central branch pipe 210, and is fully premixed with the air in the premixed gas chamber 201 to form a uniform premixed gas to serve as fuel for the main burner 206 and the central premixed burner 207.

[0050] The multi-channel combustion vehicle provided in this embodiment takes a multi-channel combustion vehicle having five combustion groups, each combustion group having four main burners 206 as an example. Other multi-channel combustion vehicles with modified number of combustion groups or similar structures or other multi-channel combustion structures are also within the scope of protection of this application.

[0051] Other shell structures evolved on the basis of the arc-shaped shell 202 of this example that can realize the functions of this application are also within the scope of protection of this application.

[0052] like Figure 2The side of the arc-shaped shell 202 of the multi-channel combustion vehicle shown is provided with five groups of independent air inlet interfaces 203 and five groups of air intake interfaces 204. Each group of air inlet interfaces 203 is connected to the air outlet structure of the high-pressure centrifugal fan 403 in the second skid-mounted unit 4 through the fan duct 7. The air outlet structure of the high-pressure centrifugal fan 403 adopts the existing structure well known to those skilled in the art, and its connection with the fan duct 7 also adopts the existing connection method well known to those skilled in the art. An electronic flow control valve 6 is provided in the middle section of the fan duct 7 to regulate the air intake volume.

[0053] The air inlet interface 204 is connected to the gas pipeline 5 in the first skid-mounted unit 3, and the arc-shaped shell 202 is evenly arranged with five groups of long strip combustion groups 205 in a circumferential direction along its outer surface. The two ends of the long strip combustion groups 205 are arranged in an arc-shaped structure. Four main burners 206 and a central premixing burner 207 are evenly distributed along the long axis of each long strip combustion group 205; the central premixing burner 207 is located at the center of its long axis direction, and the main burners 206 are symmetrically distributed on both sides of the central premixing burner 207 along the long axis direction of the long strip combustion group 205; the central premixing burner 207 has a built-in high-energy pulse electric spark igniter 208, and the high-energy pulse electric spark igniter 208 is controlled by the AI ​​intelligent iterative control system to trigger ignition and stably ignite the four main burners 206 in the same combustion group; the bottom of the multi-channel combustion vehicle body is equipped with a universal locking roller group 103 to support all-terrain rapid mobile deployment; the multi-channel combustion vehicle body and the modular movable skid-mounted integration system are plug-and-play through flanges.

[0054] The specific configuration of the shape and structure of the combustion group on the shell of this embodiment adopts existing methods well known to those skilled in the art, and the central premix burner 207 and the main burner 206 also adopt existing structures well known to those skilled in the art.

[0055] like Figure 3As shown, the air intake interface 204 is connected to the air intake pipe 213, and the air intake pipe 213 extends into the interior of the arc-shaped shell 202 and then splits into three paths. The middle main path is connected to the premixed gas chamber 201 through the central branch pipe 210 and corresponds to the central premixed burner 207. The other two paths are sequentially connected through the first-level symmetrical branch 211 and the second-level dynamic balance branch 212 to form a symmetrical diversion pipeline 209; the first-level symmetrical branch 211 divides the main path into two symmetrical side branches on both sides; the second-level dynamic balance branch 212 bifurcates each side branch into two paths for the second time, forming four symmetrical diversion pipelines 209, the symmetrical diversion pipelines 209 are connected to the premixed gas chamber 201, and each main burner 206 corresponds to a symmetrical diversion pipeline 209 extending into the premixed gas chamber 201, through The symmetrical diversion pipeline 209 realizes uniform air supply for the four main burners 206; the five groups of air inlet interfaces 203 are connected to the five groups of air inlet pipes, and the air inlet pipes are respectively connected to the middle of the premixed gas chamber 201 below the five groups of long strip combustion groups 205 after entering the shell, and do not interfere with the central branch pipe 210; the gas can be transported in equal amounts to the premixed gas chamber at the bottom of the corresponding main burner 206 through the symmetrical diversion pipeline 209, and the air enters the premixed gas chamber and diffuses evenly from the middle to the corresponding positions of the four main burners 206. The gas and air in the premixed gas chamber space corresponding to the main burner 206 are fully mixed in the premixed gas chamber to form a uniform premixed gas, so that the gas and air of the four main burners 206 in the same combustion group are evenly supplied, ensuring full combustion of each burner.

[0056] like Figure 4As shown, the explosion-proof fire extinguishing device in the first skid-mounted unit 3 includes an explosion-proof control cabinet 303, two explosion-proof fans 304, three combustible gas detectors 305, several suspended ultra-fine dry powder fire extinguishers 306, and explosion-proof lighting devices 404; the explosion-proof fans 304 are symmetrically arranged at the bottom of both sides of the inner wall of the container 307 of the first skid-mounted unit 3, connected to the explosion-proof control cabinet 303, and explosion-proof shutters 308 are installed at the exhaust vents; a combustible gas detector 305 is vertically suspended 50-100 cm above the flange joint of the gas pipeline 5, and the other two combustible gas detectors 305 are respectively arranged in the middle of the top crossbeam of the container 307 above the gas cylinder or fuel tank 301, and the three combustible gas detectors 305 are all connected to the explosion-proof control cabinet 303; the suspended ultra-fine dry powder fire extinguisher 306 is suspended and fixed to the fire extinguisher on the ceiling of the container 307 On the annular lifting bracket 309, the bottom of the fire extinguisher annular lifting bracket 309 is 0.7 times the height of the container 307 from the ground. The suspended ultra-fine dry powder fire extinguisher 306 is driven by a pneumatic solenoid valve and connected to the explosion-proof control cabinet 303; the explosion-proof fan 304, the combustible gas detector 305 and the suspended ultra-fine dry powder fire extinguisher 306 are all electrically connected to the explosion-proof control cabinet 303; the explosion-proof control cabinet 303 is connected to the touch panel 310 installed on the outer wall of the container 307, which displays the gas concentration, fan status and fire extinguisher pressure data in real time. When any combustible gas detector 305 detects that the gas concentration exceeds the standard, the explosion-proof control cabinet 303 starts the explosion-proof fan 304 for forced exhaust, and at the same time triggers the pneumatic solenoid valve switch to activate the suspended ultra-fine dry powder fire extinguisher 306 in the corresponding area to release dry powder, realizing the full process automation of explosion prevention, fire extinguishing and risk elimination.

[0057] The explosion-proof lighting device 404 of this embodiment includes an LED explosion-proof lamp group with an explosion-proof grade greater than or equal to ExdIIBT4, which is symmetrically installed on the ceiling of the container 307. The LED explosion-proof lamps 311 of the LED explosion-proof lamp group are connected in parallel to the explosion-proof control cabinet 303 through the explosion-proof junction box 312. The lighting switch control module is integrated into the touch panel 310. When the combustible gas detector 305 alarms or the suspended ultra-fine dry powder fire extinguisher 306 is activated, the touch panel 310 automatically switches the lighting mode to the emergency high-brightness state.

[0058] like Figure 6As shown, the gas pipeline 5 includes a main pipeline 501 with a multi-channel confluence interface. One end of the main pipeline 501 is connected to several gas cylinders or fuel tanks 301 through a high-pressure hose and an explosion-proof quick-connect joint. The other end of the main pipeline 501 is connected in series to the vaporizer 302 and the gas main shut-off valve 502, and then is divided into five branches that are respectively connected to the five groups of air inlet interfaces 204 of the multi-channel combustion vehicle. Each branch is sequentially connected to an intelligent pressure reducing valve 503 with pressure feedback and an intelligent valve positioner 504 with an integrated LCD screen. The input end of the intelligent valve positioner 504 is connected to the filter 505. Through the pressure-stabilizing branch of the existing air compressor well known to those skilled in the art, the output end is connected to the air intake interface 204 of the multi-channel combustion vehicle through the corrugated flame arrester 506; the intelligent valve positioner 504 with an integrated LCD screen is connected to the AI ​​intelligent iterative control system, and the valve opening information is fed back to the AI ​​intelligent iterative control system in real time. The AI ​​intelligent iterative control system generates the valve opening adjustment instruction for the next time period based on the preset target temperature parameters, and sends it back to the intelligent valve positioner 504 to execute the opening adjustment, forming a closed-loop control link that dynamically matches the gas flow and temperature field.

[0059] like Figure 5 As shown, there are two explosion-proof fans 304 in the box of the second skid-mounted unit 4. The explosion-proof fans 304 are symmetrically arranged at the bottom of the inner wall of the box of the second skid-mounted unit 4, and are connected to the explosion-proof control cabinet 303. Explosion-proof shutters 308 are installed at the exhaust outlet, and universal locking roller assemblies 103 are installed at the bottom of the boxes of the second skid-mounted unit 4 and the first skid-mounted unit 3.

[0060] The quantity configuration of each device in this embodiment is a preferred embodiment of this embodiment, and other quantity configurations are also within the protection scope of this application.

[0061] The AI ​​intelligent iterative control system is embedded with a deep spatiotemporal sequence prediction model based on the long short-term memory (LSTM) architecture well known to those skilled in the art. It is set on the computer side and receives real-time measured data from the multimodal fire scene environment monitoring system, including fire scene holographic images, temperature spatiotemporal distribution and multidimensional wind field parameters, wherein the multidimensional wind field parameters include wind speed vector, wind inclination angle and turbulence intensity; the spatiotemporal feature fusion and nonlinear modeling of multi-source heterogeneous data are performed through the LSTM model to output the dynamic opening optimization value of the gas control valve in the three-dimensional fire plume reconstruction combustion system and the target wind speed and angle control instructions of the axial flow fan of the multi-dimensional wind field simulation system 1; the predicted value is transmitted in real time to the PLC intelligent dynamic control system of the AI ​​intelligent iterative control system. The PLC intelligent dynamic control system dynamically adjusts the opening of the multi-channel combustion vehicle gas control valve, the electronic flow control valve 6 and the wind speed and inclination angle of the axial flow fan through the electrical control cabinet 402 according to the real-time monitoring data to ensure the precise control and reproduction of the real fire scene test conditions; the PLC intelligent dynamic control system and the main control computer are connected through OPC UA protocol interconnection, real-time visualization of the fire scene holographic thermal map, gas valve opening deviation curve, fan operation status matrix and control parameter iteration process.

[0062] The multimodal fire scene environment monitoring system of this embodiment includes a fire scene panoramic video acquisition unit, a fire scene space temperature field monitoring unit and a wind speed monitoring unit. The panoramic video acquisition unit uses a high-resolution camera and an infrared imaging device to capture visible light and thermal radiation images of the fire scene in real time and monitor the panoramic video of the fire scene; the temperature field monitoring unit is composed of distributed thermocouples and infrared thermometers, and is used to collect fire scene space temperature distribution data in real time and generate a three-dimensional temperature field model; the wind speed monitoring unit is composed of an ultrasonic anemometer and a pressure sensor, and is used to monitor the wind speed, wind direction and wind pressure data of the wind field in real time; the monitoring data is transmitted in real time to the AI ​​intelligent iterative control system on the computer side via a high-speed communication network, which accurately controls the test, records the entire data, and supports data visualization.

[0063] The high-resolution camera and infrared imaging device, distributed thermocouple and infrared thermometer, ultrasonic anemometer and pressure sensor of this embodiment use existing products or structures well known to those skilled in the art, and their connection with the AI ​​intelligent iterative control system also uses existing connection methods well known to those skilled in the art.

[0064] The specific arrangement of the fire scene high-resolution camera and infrared imaging device, distributed thermocouple and infrared thermometer, ultrasonic anemometer and pressure sensor in this embodiment is arranged in a manner well known to those skilled in the art.

[0065] The multi-dimensional wind field simulation system 1 consists of multiple high-dynamic axial flow fans 101 distributed in a matrix topology. Each high-dynamic axial flow fan 101 is equipped with an independent frequency converter 102 to achieve continuous adjustment of wind speed. The array of high-dynamic axial flow fans 101 adopts the PLC intelligent dynamic control strategy in the AI ​​intelligent iterative control system to simulate wind field conditions under complex fire scenarios, including uniform wind fields and gradient wind fields. The multi-dimensional wind field simulation system 1 is connected to the ultrasonic wind speed and direction sensor and pressure sensor in the multi-modal fire field environment monitoring system to monitor the multi-dimensional parameters of the wind field in real time, and feed the monitoring data back to the AI ​​intelligent iterative control system, and perform multi-scale error analysis and regulation on the wind field monitoring data and preset target parameters to ensure accurate reproduction of wind field conditions. The bottom of the multi-dimensional wind field simulation system 1 is integrated with a multi-degree-of-freedom universal locking roller group 103 to support all-terrain movement in various environments. The roller locking mechanism ensures stability during the wind field simulation process.

[0066] The high dynamic axial flow fan 101 and the frequency converter 102 of this embodiment both adopt existing products or structures well known to those skilled in the art, and are connected to each other using existing connection methods well known to those skilled in the art.

[0067] The structures not described in detail in this embodiment all adopt existing products or structures well known to those skilled in the art, and the connections between them also adopt existing connection methods well known to those skilled in the art.

[0068] The electrical control cabinet 402, intelligent valve positioner 504, intelligent pressure reducing valve 503, and AI intelligent iterative control system of this embodiment all adopt existing products or structures well known to those skilled in the art, and the connection or communication methods between them also adopt existing connection or communication methods well known to those skilled in the art.

[0069] The method for a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device provided in this embodiment specifically includes the following steps:

[0070] S1: transport the first skid-mounted unit 3, the second skid-mounted unit 4, the multi-channel combustion vehicle, the multi-modal fire environment monitoring system, and the multi-dimensional wind field simulation system to the target site, move them to preset positions, and arrange them in a manner well known to those skilled in the art. At the same time, arrange the test pieces well known to those skilled in the art in correspondence with the multi-channel combustion vehicle in accordance with methods well known to those skilled in the art.

[0071] S2: Activate the explosion-proof fire extinguishing device in the first skid-mounted unit 3. The explosion-proof control cabinet 303, the combustible gas detector 305, and the suspended ultra-fine dry powder fire extinguisher 306 form a linked fire extinguishing system, which monitors the gas concentration in the skid-mounted unit in real time and maintains full operation. If the combustible gas detector detects that the gas concentration in the first skid-mounted unit 3 is ≥ 25% LEL at any time, where LEL represents the lower explosion limit, the suspended ultra-fine dry powder fire extinguisher 306 is immediately activated, the power is cut off, and the test is immediately stopped.

[0072] S3: The gas pipeline 5 of the first skid-mounted unit 3 is connected to the air inlet interface 204 of the multi-channel combustion vehicle through explosion-proof quick-connect flanges. The output end of the power distribution cabinet 401 of the second skid-mounted unit 4 is connected to the power interface of the multi-channel combustion vehicle and the power supply port of the high-dynamic axial flow fan 101 through waterproof cables. The communication interface of the electrical control cabinet 402 is connected to the PLC controller of the multi-channel combustion vehicle and the high-dynamic axial flow fan 101 through a shielded twisted pair cable.

[0073] S4: Inputting target fire scene parameters, including flame shape, temperature gradient, and wind speed vector, into the AI ​​intelligent iterative control system on the computer side, and generating an initial control instruction set, using a method well known to those skilled in the art;

[0074] S5: Start the gas supply system and the air compressor, dynamically adjust the gas flow and air flow through the intelligent valve positioner 504 and the electronic flow control valve 6, and synchronously drive the high-dynamic axial flow fan array to generate a preset wind field;

[0075] S6: triggering the high-energy pulse electric spark igniter 208 to ignite the flame, activating the fire scene panoramic camera, distributed thermocouples and ultrasonic anemometer, and feeding back flame shape, temperature field and wind field data to the AI ​​intelligent iterative control system in real time;

[0076] S7: Use the fluid dynamics software FDS known to those skilled in the art to simulate the spatial non-uniform temperature field of a real fire scene. The AI ​​intelligent iterative control system converts the simulated non-uniform temperature field temperature results and wind speed into intelligent valve positioner valve opening ugas, electronic flow control valve opening uair and fan inverter frequency ffan control instructions of the high dynamic axial flow fan 101 based on the deviation between the real-time data and the target curve. The dynamic non-uniform temperature field simulation of the target fire scene is achieved through real-time adjustment of each instruction. The system control instruction is generated according to the following formula:

[0077]

[0078] Where: α, β, γ are coupling coefficients, the values ​​of which are determined by the trained LSTM model embedded in the AI ​​intelligent iterative control system. Those skilled in the art can dynamically adjust them according to real-time working conditions; ufinal is the system control instruction; is the existing PID control equation, Kp is the proportional gain coefficient, e(t) is the error signal, Ki is the integral gain coefficient, and Kd is the differential gain coefficient. By adding the intelligent valve positioner valve opening ugas, the electronic flow control valve opening uair, and the fan inverter frequency ffan to the existing PID control method, the conversion between the current curve and the control instruction is achieved.

[0079] S8: When the test ends, the AI ​​intelligent iterative control system closes the intelligent pressure reducing valve 503 and stops the high-dynamic axial flow fan 101 and the high-pressure centrifugal fan 403;

[0080] S9: Stores full-cycle test data packages, including flame morphology dynamic sequence, temperature field distribution matrix, and wind field control log, for fire scene reproduction and analysis.

[0081] In this specification, for the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the relevant parts can be referred to the description of the methods.

[0082] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-channel asynchronous control non-uniform temperature field combustion system, characterized in that: It includes a multi-channel combustion vehicle, which is provided with an arc-shaped shell, and several groups of independent air intake interfaces and air intake interfaces are provided on the side of the arc-shaped shell, and several combustion groups are evenly distributed on the outer surface of the arc-shaped shell, and a premixed gas chamber is provided at the bottom of each combustion group; each premixed gas chamber is connected to a group of air intake interfaces and air intake interfaces, the air intake interfaces are connected to the premixed gas chamber through a multi-stage evenly distributed air intake pipe structure, and the air intake interfaces are connected to the premixed gas chamber through an air intake duct; the air intake interfaces are connected to a gas pipeline capable of adjusting the gas flow rate, and the air intake interfaces are connected to a fan pipeline capable of adjusting the air flow rate, and the combustion of non-uniform temperature fields is achieved by independently regulating the gas and air ratios of each channel of the multi-channel combustion vehicle.

2. A multi-channel asynchronous control non-uniform temperature field combustion system according to claim 1, characterized in that: A central premix burner and several main burners are provided in the combustion group; the multi-stage evenly distributed intake pipe structure supplies an equal amount of gas to each main burner and the central premix burner; the multi-stage evenly distributed intake pipe structure includes a central branch pipe for supplying gas to the central premix burner and several symmetrical diversion pipes for independently supplying gas to each main burner, the lower end of the symmetrical diversion pipe is connected to the intake pipe after merging with the lower end of the central branch pipe, the intake pipe is connected to the intake interface, the gas enters the premixed gas chamber from the symmetrical diversion pipes and the central branch pipe, is fully premixed with the air in the premixed gas chamber to form a uniform premixed gas to serve as fuel for the main burner and the central premixed burner.

3. The multi-channel asynchronous control non-uniform temperature field combustion system according to claim 2, characterized in that: Each of the main burners corresponds to a symmetrical diversion pipeline extending into the premixed gas chamber, the symmetrical diversion pipeline is connected to a first-level symmetrical branch and a second-level dynamic balance branch, and the air intake pipe is connected to the premixed gas chamber in sequence through the first-level symmetrical branch, the second-level dynamic balance branch, and the symmetrical diversion pipeline.

4. The multi-channel asynchronous control non-uniform temperature field combustion system according to claim 2, characterized in that: Several groups of long strip combustion groups are evenly arranged along the circumferential direction on the outer surface of the arc-shaped shell, and each group of long strip combustion groups has 4 or 6 main burners and a central premixing burner evenly distributed along its long axis; the central premixing burner is located at the center of the long axis direction of the long strip combustion group, and the main burners are symmetrically distributed on both sides of the central premixing burner along the long axis direction of the long strip combustion group; the central premixing burner has a built-in high-energy pulse electric spark igniter.

5. A multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device, characterized in that: It comprises a multi-channel asynchronously controlled non-uniform temperature field combustion system as described in any one of claims 1 to 4, and also comprises an AI intelligent iterative control system, a modular movable skid-mounted integrated system, a multimodal fire scene environment monitoring system and a multidimensional wind field simulation system; the multi-channel asynchronously controlled non-uniform temperature field combustion system is used to simulate the dynamic non-uniform temperature field combustion state; the modular movable skid-mounted integrated system is used to provide the multi-channel asynchronously controlled non-uniform temperature field combustion system with adjustable flow of gas and air, the multi-dimensional wind field simulation system corresponds to the multi-channel asynchronously controlled non-uniform temperature field combustion system, and is used to simulate on-site wind field conditions, the multimodal fire scene environment monitoring system is used to monitor flame morphology, temperature field and wind field data, the AI ​​intelligent iterative control system uses the LSTM model to fuse flame morphology, temperature field and wind field data in real time, and dynamically optimizes the flow control of the gas pipeline and the fan pipeline.

6. The multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device according to claim 5, characterized in that: The modular movable skid-mounted integrated system includes a first skid-mounted unit and a second skid-mounted unit; the first skid-mounted unit integrates a gas cylinder or fuel tank, a vaporizer, an explosion-proof fire extinguishing device, an explosion-proof lighting device and the gas pipeline; the second skid-mounted unit integrates a power distribution cabinet, an electrical control cabinet, a high-pressure centrifugal fan and the fan pipeline.

7. The multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device according to claim 6, characterized in that: The first skid-mounted unit is a container skid-mounted unit, and the explosion-proof fire extinguishing device includes an explosion-proof control cabinet, an explosion-proof fan, a combustible gas detector and several suspended ultra-fine dry powder fire extinguishers; the explosion-proof fan is symmetrically arranged on the inner wall of the first skid-mounted unit container; the exhaust vent of the first skid-mounted unit container is installed with explosion-proof shutters; the combustible gas detector is hung on the accessory flange joint of the gas pipeline and above the gas cylinder or fuel tank to detect combustible gas leakage; the suspended ultra-fine dry powder fire extinguisher is hung on the ceiling of the first skid-mounted unit container, and the explosion-proof fan, combustible gas detector and suspended ultra-fine dry powder fire extinguisher are all electrically connected to the explosion-proof control cabinet; the explosion-proof control cabinet is connected to a touch screen installed on the outer wall of the first skid-mounted unit container. The panel can display the gas concentration, fan status and fire extinguisher pressure data in real time. When the combustible gas detector detects that the gas concentration exceeds the standard, the explosion-proof control cabinet starts the explosion-proof fan for forced exhaust, and at the same time activates the suspended ultra-fine dry powder fire extinguisher in the corresponding area to release dry powder, thereby realizing the full process automation of explosion prevention, fire extinguishing and risk elimination; the explosion-proof lighting device includes a plurality of explosion-proof lamps, which are symmetrically installed on the ceiling of the first skid-mounted unit container, and are connected to the explosion-proof control cabinet in parallel. The lighting switch control module of the explosion-proof lamp is integrated in the touch panel. When the combustible gas detector alarms or the suspended ultra-fine dry powder fire extinguisher is started, the touch panel automatically switches the lighting mode to the emergency high-brightness state.

8. The multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device according to claim 6, characterized in that: The gas pipeline includes a main pipeline provided with a multi-channel confluence interface. After one end of the main pipeline is connected to several gas cylinders or fuel tanks through a high-pressure hose and an explosion-proof quick-connect connector, the other end of the main pipeline away from the gas cylinders or fuel tanks is connected in series with a vaporizer and a gas main shut-off valve, and then divided into several branches. Each branch of the main pipeline is sequentially connected to an intelligent pressure reducing valve with pressure feedback and an intelligent valve positioner with an integrated LCD screen. The input end of the intelligent valve positioner is connected to the pressure-stabilizing branch of the air compressor through a filter, and the output end of the intelligent valve positioner is connected to the air inlet interface through a corrugated flame arrester. The second skid-mounted unit is a container skid-mounted unit. The power distribution cabinet, electrical control cabinet, and high-pressure centrifugal fan are arranged in the second skid-mounted unit container. The power distribution cabinet can be connected to an external power supply to power the various systems of the multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device. The electrical control cabinet has a built-in PLC controller and communication module for realizing coordinated control of various systems. The fan duct is arranged on the second skid-mounted unit container corresponding to the high-pressure centrifugal fan, and an electronic flow control valve is provided on the fan duct; the electrical control cabinet, intelligent valve positioner, electronic flow control valve, and intelligent pressure reducing valve are communicatively connected to the AI ​​intelligent iterative control system.

9. The multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device according to claim 5, characterized in that: The multi-dimensional wind field simulation system includes several high-dynamic axial flow fans, which are distributed in a matrix topology. Each high-dynamic axial flow fan is equipped with an independent frequency converter. The multi-modal fire scene environment monitoring system includes a fire scene panoramic video acquisition unit, a fire scene space temperature field monitoring unit and a wind speed monitoring unit. The fire scene panoramic video acquisition unit is used to capture the visible light and thermal radiation images of the dynamic non-uniform temperature field state fire scene simulated by the multi-channel asynchronous control non-uniform temperature field combustion system in real time, and monitor the fire scene panoramic video; the fire scene space temperature field monitoring unit is composed of distributed thermocouples and infrared thermometers, and is used to collect fire scene space temperature distribution data in real time and generate a three-dimensional temperature field model; the wind speed monitoring unit is composed of an ultrasonic anemometer and a pressure sensor, and is used to monitor the wind speed, wind direction and wind pressure data of the wind field simulated by the multi-dimensional wind field simulation system in real time; the data monitored by the multi-modal fire scene environment monitoring system is transmitted in real time to the AI ​​intelligent iterative control system on the computer side through the communication network.

10. A method for implementing a multi-channel asynchronously controlled dynamic non-uniform temperature field skid-mounted combustion device, characterized in that: The specific steps include: S1: Transport the first skid-mounted unit, the second skid-mounted unit, the multi-channel combustion vehicle, the multi-modal fire environment monitoring system, and the multi-dimensional wind field simulation system to the target site and move them to the preset position; S2: Activate the explosion-proof fire extinguishing device in the first skid-mounted unit. The explosion-proof control cabinet, combustible gas detector, and suspended ultra-fine dry powder fire extinguisher form a linked fire extinguishing system, which monitors the gas concentration in the first skid-mounted unit in real time and maintains full operation. If the combustible gas detector detects that the gas concentration in the first skid-mounted unit is ≥25%LEL at any time, immediately activate the suspended ultra-fine dry powder fire extinguisher, cut off the power supply, and stop the test immediately. S3: Connect the gas pipeline of the first skid-mounted unit to the air inlet interface of the multi-channel combustion vehicle through explosion-proof quick-connect flanges. Connect the output end of the power distribution cabinet of the second skid-mounted unit to the power interface of the multi-channel combustion vehicle and the power supply port of the high-dynamic axial flow fan through waterproof cables. Connect the communication interface of the electrical control cabinet to the PLC controller of the multi-channel combustion vehicle and the high-dynamic axial flow fan through shielded twisted pair cables. S4: Input the target fire scene parameters, including flame shape, temperature gradient, and wind speed vector, into the AI ​​intelligent iterative control system on the computer to generate an initial control instruction set; S5: Start the gas supply system and air compressor, dynamically adjust the gas flow and air flow through the intelligent valve positioner and electronic flow control valve, and synchronously drive the high-dynamic axial flow fan to generate a preset wind field; S6: Triggering a high-energy pulse spark igniter to ignite the flame, activating the multi-modal fire environment monitoring system, and providing real-time feedback on flame shape, temperature field, and wind field data to the AI ​​intelligent iterative control system; S7: The AI ​​intelligent iterative control system uses an LSTM model to iteratively optimize the intelligent valve positioner, electronic flow control valve opening, and high-dynamic axial fan pitch instructions based on the deviation between real-time data and preset parameters. By controlling the combustion state and wind field data of different combustion groups in the multi-channel combustion vehicle, it can achieve dynamic non-uniform temperature field simulation of the target fire scenario. S8: When the test ends, the AI ​​intelligent iterative control system closes the intelligent pressure reducing valve and stops the operation of the high-dynamic axial flow fan and the high-pressure centrifugal fan; S9: Stores full-cycle test data packages, including flame morphology dynamic sequence, temperature field distribution matrix, and wind field control log, for fire scene reproduction and analysis.

Images