Multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device and method
By using a multi-channel combustion engine and an AI-powered intelligent iterative control system, the ratio of gas to air can be adjusted in real time, solving the problem that existing combustion devices cannot dynamically control the heat release rate. This improves the accuracy and adaptability of fire simulation and provides a high-fidelity foundation for fire safety research and testing.
Patent Information
- Application Number
- CN202511195399.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2045-08-26
AI Technical Summary
Existing combustion devices cannot dynamically control the heat release rate, making it difficult to simulate the interaction between fuel consumption, ventilation conditions, and heat radiation in real fires. They also cannot meet the fire reproduction requirements of different spatial scales and combustible types, resulting in insufficient correlation between structural fire resistance test data and actual fire damage modes.
The skid-mounted combustion device, which employs a multi-channel asynchronous control dynamic non-uniform temperature field, achieves real-time control of the gas-air ratio through a multi-channel combustion vehicle, an AI intelligent iterative control system, a modular mobile skid-mounted integrated system, and a multi-dimensional wind field simulation system. Combined with real-time temperature field feedback and wind field data, it generates an adaptive dynamic temperature rise curve.
It achieves a high-fidelity physical representation of a spatially non-uniform temperature field, improves the accuracy and adaptability of fire simulation, enhances the flexibility and safety of the device, and provides a high-fidelity experimental basis for fire safety research.
Smart Images

Figure CN120720591B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of fire engineering and civil engineering, more particularly, to a multi-channel asynchronous control dynamic non-uniform temperature field prying burning device and method. BACKGROUND
[0002] As a highly destructive disaster type, fire poses a great threat to the safety of complex structures such as buildings, transportation hubs and underground spaces. The ISO 834 standard temperature curve widely used in fire safety assessment has long been used as a benchmark for structural fire resistance tests since its inception. However, the curve is based on an idealized fire scenario and does not take into account the dynamic fluctuations in heat release rate, fuel distribution differences and environmental wind field effects on the temperature rise process in real fire scenes. Its static and single temperature-time relationship has been unable to meet the fine needs of modern engineering structure fire resistance research.
[0003] Traditional burning devices mostly use homogenized heating or preset temperature rise modes, which cannot dynamically control the heat release rate to match the energy release characteristics of historical fire scenes. For example, when simulating large-span building fires, existing equipment lacks the ability to independently control the temperature in multiple areas, making it difficult to reproduce the synergistic effect of local high-temperature zones and smoke spread. In bridge cable fireproofing tests, it is impossible to simulate the dynamic erosion process of the flame on the protective coating in a crosswind environment. This technical defect makes the structural fire resistance test data insufficiently related to the actual fire damage pattern, restricting the reliability of fire resistance design and post-disaster assessment.
[0004] Existing burning devices mostly rely on preset temperature curves for driving, lack real-time feedback control of the heat release rate of the fire source, and are difficult to dynamically simulate the interaction of fuel consumption, ventilation conditions and heat radiation in real fires. When simulating open space fires, traditional equipment ignores the effect of environmental wind speed on the flame inclination angle and heat transfer efficiency, resulting in a large deviation between the test temperature field distribution and the real scene. For example, in bridge cable fireproofing tests, it is impossible to simulate the dynamic erosion process of the flame on the protective coating in a crosswind environment. Moreover, existing equipment lacks the ability to independently control the temperature in multiple areas, making it difficult to reproduce the real fire environment of local non-uniform high-temperature zones when simulating large-span building fires and tunnel fires in confined spaces. In addition, the fixed temperature rise rate control mode cannot adapt to the differences in combustion characteristics of multiple types of combustible materials. This technical defect makes the structural fire resistance test data insufficiently related to the actual fire damage pattern, restricting the reliability of fire resistance design and post-disaster assessment.
[0005] In addition, existing test platforms are also limited by fixed architecture and rigid control logic, which cannot quickly reconstruct historical fire scenes or adapt to the fire reproduction needs of different spatial scales and combustible material types. How to reveal the thermodynamic behavior of structures in real fire through high-fidelity environmental simulation has become a core challenge to improve the scientific nature of fire safety research.
[0006] In view of the above problems, there is an urgent need for a fire simulation technology based on heat release rate and temperature double factors, which breaks through the static limitation of traditional standard curves by dynamically feeding back the combustion intensity and environmental parameters. SUMMARY
[0007] Therefore, the present application provides a multi-channel asynchronous regulation dynamic non-uniform temperature field prying combustion device and method, proposes to take the heat release rate as the core control variable, combines the real-time temperature field feedback, constructs the self-adaptive dynamic temperature rising curve, and provides a high-fidelity test basis for fire safety research under complex scenes.
[0008] In order to achieve the above purpose, the present application adopts the following technical solutions:
[0009] A multi-channel asynchronous regulation non-uniform temperature field combustion system, comprising a multi-channel combustion vehicle, the multi-channel combustion vehicle is provided with an arc-shaped shell, a plurality of groups of independent air inlet interfaces and air inlet interfaces are arranged on the side surface of the arc-shaped shell, a plurality of combustion groups are uniformly arranged on the outer surface of the arc-shaped shell, and a premixed gas chamber is arranged at the lower part of each combustion group; each premixed gas chamber is communicated with a group of air inlet interfaces and air inlet interfaces, the air inlet interface is communicated with the premixed gas chamber through a multi-stage uniform distribution air inlet pipe structure, and the air inlet interface is communicated with the premixed gas chamber through an air inlet pipeline; the air inlet interface is connected with a gas pipeline capable of adjusting the flow of gas, the air inlet interface is connected with a fan pipeline capable of adjusting the flow of air, and the combustion of the non-uniform temperature field is realized by independently regulating the proportion of gas and air of each channel.
[0010] Preferably, a center premixed combustion nozzle and a plurality of main combustion nozzles are arranged in the combustion group; the multi-stage uniform distribution air inlet pipe structure uniformly supplies gas to each main combustion nozzle and the center premixed combustion nozzle; the multi-stage uniform distribution air inlet pipe structure comprises a center branch pipe for supplying gas to the center premixed combustion nozzle and a plurality of symmetrical distribution pipelines for independently supplying gas to each main combustion nozzle, the lower ends of the symmetrical distribution pipelines and the center branch pipe are confluent and communicated with the air inlet pipeline, the air inlet pipeline is communicated with the air inlet interface, and the gas enters the premixed gas chamber from the symmetrical distribution pipelines and the center branch pipe, and is fully premixed with air in the premixed gas chamber to form uniform premixed gas as fuel for the main combustion nozzles and the center premixed combustion nozzle.
[0011] Preferably, each main combustion nozzle corresponds to a symmetrical distribution pipeline extending into the premixed gas chamber, the symmetrical distribution pipeline is communicated with a first symmetrical branch and a second dynamic balance branch, and the air inlet pipeline is communicated with the premixed gas chamber through the first symmetrical branch, the second dynamic balance branch and the symmetrical distribution pipeline in sequence.
[0012] Preferably, the arc-shaped shell outer surface is uniformly arranged with several groups of long strip-shaped combustion groups along the circumferential direction, and each group of long strip-shaped combustion groups is uniformly arranged with 4 or 6 main combustion nozzles and a center premixed combustion nozzle along the long axis; the center premixed combustion nozzle is located at the center of the long axis direction of the long strip-shaped combustion group, and the main combustion nozzles are symmetrically distributed on both sides of the center premixed combustion nozzle along the long axis direction of the long strip-shaped combustion group; the center premixed combustion nozzle is provided with a high-energy pulse electric spark igniter.
[0013] The application also provides a multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device, comprising the multi-channel asynchronous regulation non-uniform temperature field combustion system, an AI intelligent iterative control system, a modular movable skid-mounted integrated system, a multi-modal fire field environment monitoring system and a multi-dimensional wind field simulation system; the multi-channel asynchronous regulation non-uniform temperature field combustion system is used for simulating a dynamic non-uniform temperature field combustion state; the modular movable skid-mounted integrated system is used for providing flow-adjustable gas and air for the multi-channel asynchronous regulation non-uniform temperature field combustion system; the multi-dimensional wind field simulation system corresponds to the multi-channel asynchronous regulation non-uniform temperature field combustion system and is used for simulating a field wind field condition; the multi-modal fire field environment monitoring system is used for monitoring flame shape, temperature field and wind field data; and the AI intelligent iterative control system fuses the flame shape, temperature field and wind field data in real time through an LSTM model and dynamically optimizes flow control of the gas pipeline and the fan pipeline.
[0014] Preferably, the modular movable skid-mounted integrated system comprises the first skid-mounted unit and the second skid-mounted unit; the first skid-mounted unit integrates a gas cylinder or a fuel tank, a vaporization furnace, an explosion-proof fire extinguishing device, an explosion-proof lighting device and the gas pipeline; and 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 pry unit is a container pry unit, 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 extinguishers; the explosion-proof fan is symmetrically arranged on the inner wall of the first pry unit container; the exhaust port of the first pry unit container is provided with an explosion-proof louver; the combustible gas detector is suspended above the flange joint of the gas pipeline accessory and the gas cylinder or fuel tank for detecting combustible gas leakage; the suspended ultra-fine dry powder extinguisher is suspended on the ceiling of the first pry unit container, and the explosion-proof fan, the combustible gas detector and the suspended ultra-fine dry powder extinguisher are electrically connected with the explosion-proof control cabinet; the explosion-proof control cabinet is connected with a touch panel mounted on the outer wall of the first pry unit container, and the touch panel can display the gas concentration, fan state and 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 to forcibly exhaust air, and simultaneously activates the suspended ultra-fine dry powder extinguisher in the corresponding area to release dry powder, thereby realizing the whole-process automatic disposal of explosion-proof, fire extinguishing and risk removal; the explosion-proof lighting device includes several explosion-proof lamps, which are symmetrically mounted on the inner ceiling of the first pry unit container, and are connected in parallel with the explosion-proof control cabinet; the lighting switch control module of the explosion-proof lamp is integrated in the touch panel, and when the combustible gas detector alarms or the suspended ultra-fine dry powder extinguisher starts, the touch panel automatically switches the lighting mode to an emergency high-light state.
[0016] Preferably, the gas pipeline includes a main pipeline provided with a multi-channel converging interface, one end of the main pipeline is connected with several gas cylinders or fuel tanks through high-pressure hoses and explosion-proof quick connectors, and the other end of the main pipeline away from the gas cylinders or fuel tanks is sequentially connected with a vaporization furnace and a gas main shut-off valve and then divided into several branches; each branch of the main pipeline is sequentially connected with an intelligent pressure reducing valve with pressure feedback and an intelligent valve positioner integrated with a liquid crystal screen; the input end of the intelligent valve positioner is connected with the pressure stabilizing branch of an air compressor through a filter; the output end of the intelligent valve positioner is connected with the gas inlet through a corrugated flame arrester; the second pry unit is a container pry unit, a power distribution cabinet, an electrical control cabinet and a high-pressure centrifugal fan are arranged in the second pry unit container; the power distribution cabinet can be connected with an external power source to supply power to each system of the multi-channel asynchronous regulation and control dynamic non-uniform temperature field pry combustion device; the PLC controller and the communication module are built in the electrical control cabinet to realize the coordinated control of the systems; the fan pipeline corresponding to the high-pressure centrifugal fan is arranged on the second pry unit container; the electronic flow control valve is arranged on the fan pipeline; the electrical control cabinet, the intelligent valve positioner, the electronic flow control valve and the intelligent pressure reducing valve are in communication connection with the AI intelligent iterative control system.
[0017] Preferably, the multi-dimensional wind field simulation system comprises a plurality of high-dynamic axial flow fans distributed in a matrix topology, each high-dynamic axial flow fan being equipped with an independent frequency converter, and the multi-modal fire field environment monitoring system comprises a fire field panoramic video acquisition unit, a fire field space temperature field monitoring unit and a wind speed monitoring unit, the fire field panoramic video acquisition unit being used to capture visible light and thermal radiation images of a dynamic non-uniform temperature field state fire field simulated by the multi-channel asynchronous regulation non-uniform temperature field combustion system in real time, and monitor the fire field panoramic video; the fire field space temperature field monitoring unit is composed of distributed thermocouples and an infrared thermometer, and is used to acquire fire field 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 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 field environment monitoring system is transmitted to the AI intelligent iterative control system of the computer end in real time through a communication network.
[0018] The application also provides an implementation method of the multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device, which specifically comprises the following steps:
[0019] S1: transporting the first skid-mounted unit, the second skid-mounted unit, the multi-channel combustion vehicle, the multi-modal fire field environment monitoring system and the multi-dimensional wind field simulation system to a target site and moving to a preset position;
[0020] S2: starting the explosion-proof fire extinguishing device in the first skid-mounted unit, and forming a linkage fire extinguishing system with the explosion-proof control cabinet, the combustible gas detector and the suspended ultra-fine dry powder fire extinguisher, monitoring the combustible gas concentration in the first skid-mounted unit in real time and keeping the whole process running; if the combustible gas detector detects that the combustible gas concentration in the first skid-mounted unit is greater than or equal to 25% LEL at any time, the suspended ultra-fine dry powder fire extinguisher is immediately started and the power supply is immediately cut off, and the test is immediately stopped;
[0021] S3: connecting the gas pipeline of the first skid-mounted unit to the gas inlet interface of the multi-channel combustion vehicle through explosion-proof quick flanges, connecting the output end of the power distribution cabinet of the second skid-mounted unit to the power supply interface of the multi-channel combustion vehicle and the power supply port of the high-dynamic axial flow fan through waterproof cables, and connecting the communication interface of the electrical control cabinet to the PLC controllers of the multi-channel combustion vehicle and the high-dynamic axial flow fan through shielded twisted pair lines;
[0022] S4: inputting target fire scene parameters including flame shape, temperature gradient and wind speed vector into the AI intelligent iterative control system of the computer end to generate an initial control instruction set;
[0023] S5: starting the gas supply system and the air compressor, dynamically adjusting the gas flow and the air flow through the intelligent valve positioner and the electronic flow control valve, and synchronously driving the high-dynamic axial flow fan to generate a preset wind field.
[0024] S6: Triggering the high-energy pulse spark igniter to ignite the flame, activating the multi-modal fire field environment monitoring system, and feeding the flame shape, temperature field and wind field data in real time to the AI intelligent iterative control system;
[0025] S7: The AI intelligent iterative control system iteratively optimizes the intelligent valve positioner, electronic flow control valve opening and high dynamic axial flow fan inclination command based on the deviation of real-time data and preset parameters through the LSTM model; By controlling the combustion state and wind field data of different combustion groups of the multi-channel combustion vehicle, the target fire scene dynamic non-uniform temperature field simulation is realized.
[0026] S8: When the test is terminated, the AI intelligent iterative control system closes the intelligent pressure reducing valve and stops the high dynamic axial flow fan and high pressure centrifugal fan from running;
[0027] S9: Store the full-cycle test data package, including flame shape dynamic sequence, temperature field distribution matrix and wind field control log, for fire scene reproduction analysis.
[0028] Advantages
[0029] Through the above technical solution, compared with the prior art, the present disclosure provides a multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device and method, which has the following advantages:
[0030] 1. It can realize high-fidelity physical presentation of spatial non-uniform temperature field: through the design of multiple independent multi-stage uniform gas inlet pipe structure and premixed gas chamber, natural uniform flow distribution and uniform premixing of gas and air are realized, solving the problem of low combustion efficiency caused by uneven distribution and imbalance of gas and air at each flame port of traditional burners, i.e. insufficient air combustion or insufficient gas ignition; Through the independent gas inlet and air inlet pipe of multiple independent channels, the premixed gas ratio of gas and air is adjusted in real time, and the independent channels work independently and do not interfere with each other, realizing independent regulation of the size of each channel flame; Finally, under the control of the AI intelligent iterative control system, the physical real presentation of the spatial non-uniform temperature field is realized.
[0031] 2. Improve the accuracy and adaptability of fire simulation: Through the multi-channel asynchronous regulation of non-uniform temperature field combustion system, AI intelligent iterative control system and multi-dimensional wind field simulation system, the dynamic non-uniform temperature field and environmental wind field coupling effect in building, tunnel, bridge and other scenes can be accurately reproduced. Breakthrough the limitation of traditional combustion device that cannot dynamically regulate heat release rate to match the real fire scene, make the fire simulation more close to the real situation, provide high-fidelity test basis for fire safety research. Solve the problem that existing equipment is difficult to reproduce the synergistic effect of local high temperature zone and smoke spread in the simulation of large-span building fire and long and narrow confined space fire, and the defect that it cannot simulate the dynamic erosion process of flame to protective coating under crosswind environment in bridge cable fireproof test, which can meet the fire reproduction needs of different space scales and combustible types.
[0032] 3. Improve the flexibility and convenience of the system: The gas supply, power distribution control and explosion-proof fire extinguishing device are integrated in the modularized pry unit, which is convenient for transportation and rapid deployment, and can quickly adapt to the needs of different sites. At the same time, two pry units can be quickly connected and realize seamless transmission of fuel, electricity, wind and data, greatly improving the flexibility and mobility of the device.
[0033] 4. Enhance safety performance: The explosion-proof fire extinguishing device in the first pry unit is composed of explosion-proof control cabinet, explosion-proof fan, combustible gas detector and suspended ultra-fine dry powder extinguisher, forming an interlocking system. It can monitor the gas concentration in the pry unit in real time. Once the gas concentration exceeds the standard, the explosion-proof fan can be started immediately to force ventilation, and the suspended ultra-fine dry powder extinguisher can be triggered to release dry powder, realizing the whole process automation of explosion-proof, fire extinguishing and risk removal, effectively ensuring the safety of the test process. The explosion-proof lighting device has emergency high-brightness function. When the combustible gas detector alarms or the suspended ultra-fine dry powder extinguisher starts, it automatically switches the lighting mode to provide sufficient lighting for emergency operation, further improving the efficiency and safety of emergency response.
[0034] 5. Intelligent control and data management: The AI intelligent iterative control system embedded with LSTM model can real-time fuse flame shape, temperature field and wind field data, dynamically optimize gas valve opening and fan inclination, realize intelligent control of combustion process, improve the automation degree and adaptability of combustion device, and ensure accurate control and reproduction of real fire test conditions. During the test, the AI intelligent iterative control system can store the whole cycle test data package, including flame shape dynamic sequence, temperature field distribution matrix and wind field control log, which provides detailed and accurate data support for fire scene reproduction analysis, and helps to deeply study the fire occurrence, development process and thermodynamic behavior of structure in real fire. BRIEF DESCRIPTION OF DRAWINGS
[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0036] Figure 1 The overall structure schematic diagram of the multi-channel asynchronous regulation dynamic non-uniform temperature field prying combustion device provided by the present application is shown in the figure.
[0037] Figure 2 The structure schematic diagram of the multi-channel combustion vehicle provided by the embodiment of the present application is shown in the figure.
[0038] Figure 3 The multi-stage equal distribution intake pipe structure schematic diagram provided by the embodiment of the present application is shown in the figure.
[0039] Figure 4 The structure schematic diagram of the first prying unit provided by the embodiment of the present application is shown in the figure.
[0040] Figure 5 The structure schematic diagram of the second prying unit provided by the embodiment of the present application is shown in the figure.
[0041] Figure 6 The gas pipeline structure schematic diagram provided by the embodiment of the present application is shown in the figure.
[0042] In the figure:
[0043] 1. Multi-dimensional wind field simulation system; 2. Multi-channel asynchronous regulation non-uniform temperature field combustion system; 3. First pry unit; 4. Second pry 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 group; 201. Premixed gas chamber; 202. Arc-shaped shell; 203. Air inlet interface; 204. Gas inlet interface; 205. Long strip combustion group; 206. Main combustion nozzle; 207. Center premixed combustion nozzle; 208. High-energy pulse electric spark igniter; 209. Symmetrical shunt pipeline; 210. Center branch pipe; 211. First-level symmetrical branch; 212. Second-level dynamic balance branch; 213. Gas inlet pipeline; 301. Gas cylinder or fuel tank; 302. Vaporization furnace; 303. Explosion-proof control cabinet; 304. Explosion-proof fan; 305. Combustible gas detector; 306. Suspension type ultra-fine dry powder fire extinguisher; 307. Container; 308. Explosion-proof louver; 309. Fire extinguisher ring-shaped hoisting support; 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. Gas main shut-off valve; 503. Intelligent pressure reducing valve; 504. Intelligent valve positioner; 505. Filter; 506. Corrugated flame arrester. DETAILED DESCRIPTION
[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.
[0045] Embodiment:
[0046] As Figure 1As shown, the embodiment provides a multi-channel asynchronous regulation dynamic non-uniform temperature field prying combustion device, which comprises a multi-channel asynchronous regulation non-uniform temperature field combustion system 2, an AI intelligent iterative control system, a modular movable prying integrated system, a multi-modal fire field environment monitoring system and a multi-dimensional wind field simulation system 1. The multi-channel asynchronous regulation non-uniform temperature field combustion system 2 is used for simulating the dynamic non-uniform temperature field state by setting the independently controlled multi-channel combustion vehicle. The modular movable prying integrated system is used for providing the multi-channel asynchronous regulation non-uniform temperature field combustion system 2 with a gas pipeline 5 capable of adjusting the gas flow and an air inlet pipeline. The multi-dimensional wind field simulation system 1 corresponds to the multi-channel asynchronous regulation non-uniform temperature field combustion system 2 and is used for simulating the field wind field condition. The multi-modal fire field environment monitoring system is used for monitoring the flame shape, temperature field and wind field data. The AI intelligent iterative control system fuses the flame shape, temperature field and wind field data in real time through the LSTM model and dynamically optimizes the flow control of the gas pipeline 5 and the air inlet pipeline.
[0047] The modular movable prying integrated system is composed of two independent prying units, i.e. a first prying unit 3 and a second prying unit 4 connected with each other. The connection mode adopts the existing connection mode well known to those skilled in the art. The first prying unit 3 is integrated with a gas cylinder or fuel tank 301, a vaporization furnace 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 with the vaporization furnace 302 to convert liquid fuel into gaseous fuel. The gas pipeline 5 comprises a high-pressure pipeline, a valve and a safety device to realize the stability and safety of fuel delivery. The explosion-proof fire extinguishing device ensures the safe ventilation in the first prying unit 3, prevents industrial explosion and extinguishes fire in time. The second prying unit 4 is integrated with 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 for providing power supply for the whole device. The electrical control cabinet 402 is built-in with a PLC controller and a communication module to realize the coordinated control of each system. The two prying units adopt a standardized interface design, can be quickly connected and realize the seamless transmission of fuel, power, wind power and data, and are equipped with a multi-degree-of-freedom universal locking roller group 103 to facilitate transportation and fixation.
[0048] The multi-channel asynchronous regulation non-uniform temperature field combustion system 2 comprises a multi-channel combustion vehicle, the multi-channel combustion vehicle is provided with an arc-shaped shell 202, a plurality of groups of independent air inlet interfaces 204 and air inlet interfaces 203 are arranged on the side of the arc-shaped shell 202, a plurality of combustion groups are uniformly arranged on the outer surface of the arc-shaped shell 202, and a premixed gas chamber 201 is arranged at the lower portion of each combustion group; each premixed gas chamber 201 is communicated with a group of air inlet interfaces 204 and air inlet interfaces 203, the air inlet interface 204 is communicated with the premixed gas chamber 201 through a multi-stage uniform distribution air inlet pipe structure, and the air inlet interface 203 is communicated with the premixed gas chamber 201 through an air inlet pipe; the air inlet interface 204 is connected with a gas pipe 5 capable of adjusting the flow of gas, and the air inlet interface 203 is connected with a fan pipe 7 capable of adjusting the flow of air, and the combustion of the non-uniform temperature field is realized by independently regulating the proportion of gas and air in each channel.
[0049] A center premixed combustion nozzle 207 and a plurality of main combustion nozzles 206 are arranged in the combustion group; the multi-stage uniform distribution air inlet pipe structure uniformly supplies gas to each main combustion nozzle 206 and the center premixed combustion nozzle 207; the multi-stage uniform distribution air inlet pipe structure comprises a center branch pipe 210 for supplying gas to the center premixed combustion nozzle 207 and a plurality of symmetrical distribution pipe lines 209 for independently supplying gas to each main combustion nozzle 206, the lower ends of the symmetrical distribution pipe lines 209 and the lower end of the center branch pipe 210 are communicated and then communicated with an air inlet pipe 213, the air inlet pipe 213 is communicated with the air inlet interface 204, and the gas enters the premixed gas chamber 201 from the symmetrical distribution pipe lines 209 and the center branch pipe 210, is fully premixed with air in the premixed gas chamber 201 to form uniform premixed gas, and serves as fuel of the main combustion nozzle 206 and the center premixed combustion nozzle 207.
[0050] The multi-channel combustion vehicle provided in the embodiment takes a multi-channel combustion vehicle with five groups of combustion groups and four main combustion nozzles 206 in each group of combustion groups as an example, and other multi-channel combustion vehicles with changed number of combustion groups or similar structure or other multi-channel combustion structures are also within the protection scope of the application.
[0051] Other shell structures capable of realizing the functions of the application and evolved on the basis of the arc-shaped shell 202 in the example are also within the protection scope of the application.
[0052] As Figure 2The arc-shaped shell 202 of the multi-channel combustion vehicle is provided with five groups of independent air inlet interfaces 203 and five groups of air inlet interfaces 204 on the side. Each air inlet interface 203 is in communication with the air outlet structure of the high-pressure centrifugal fan 403 in the second pry-mounted unit 4 through the fan pipeline 7. The air outlet structure of the high-pressure centrifugal fan 403 adopts an existing structure known to those skilled in the art, and the connection between the air outlet structure and the fan pipeline 7 also adopts an existing connection method known to those skilled in the art. The electronic flow control valve 6 is arranged in the middle section of the fan pipeline 7 to regulate the air inlet amount.
[0053] The air inlet interface 204 is connected with the gas pipeline 5 in the first pry-mounted unit 3. The arc-shaped shell 202 is uniformly arranged with five groups of long strip-shaped combustion groups 205 along the outer surface thereof in a ring shape. The two ends of the long strip-shaped combustion group 205 are arranged in an arc-shaped structure. Four main combustion nozzles 206 and a central premix combustion nozzle 207 are uniformly arranged in each long strip-shaped combustion group 205 along the long axis thereof. The central premix combustion nozzle 207 is located at the center of the long axis direction. The main combustion nozzles 206 are symmetrically distributed on both sides of the central premix combustion nozzle 207 along the long axis direction of the long strip-shaped combustion group 205. The central premix combustion nozzle 207 is provided with a high-energy pulse electric spark igniter 208. The high-energy pulse electric spark igniter 208 is controlled to trigger ignition by an AI intelligent iterative control system, and then stably ignites the four main combustion nozzles 206 in the same combustion group. The multi-channel combustion vehicle main body is configured with a universal locking roller group 103 to support rapid movement and deployment on all terrains. The multi-channel combustion vehicle main body and the modular movable pry-mounted integrated system are connected through flanges for plug-and-play.
[0054] The specific arrangement of the shape structure and the like of the combustion group on the shell in the embodiment adopts an existing method known to those skilled in the art. The central premix combustion nozzle 207 and the main combustion nozzle 206 also adopt an existing structure known to those skilled in the art.
[0055] As Figure 3As shown, the air inlet interface 204 is connected with the air inlet pipeline 213, the air inlet pipeline 213 extends into the arc-shaped shell 202 and is divided into three ways, the middle main pipeline is communicated with the premixed gas chamber 201 through the center branch pipe 210 and corresponds to the center premixed combustion nozzle 207, the other two ways form the symmetrically divided pipeline 209 through the first symmetric branch 211 and the second dynamic balance branch 212 in sequence; the first symmetric branch 211 divides the main pipeline into two symmetrically left and right branch pipes; the second dynamic balance branch 212 divides each branch pipe into two ways, forming four symmetrically divided pipelines 209, the symmetrically divided pipeline 209 is communicated with the premixed gas chamber 201, each main combustion nozzle 206 corresponds to a symmetrically divided pipeline 209 extending into the premixed gas chamber 201, and uniform air supply for the four main combustion nozzles 206 is realized through the symmetrically divided pipeline 209; the five groups of air inlet interfaces 203 are communicated with five groups of air inlet pipelines, the air inlet pipelines enter into the shell and are respectively communicated to the middle part of the premixed gas chamber 201 below the five groups of long strip-shaped combustion groups 205 and do not interfere with the center branch pipe 210; the gas can be equally delivered into the premixed gas chamber below the corresponding main combustion nozzle 206 through the symmetrically divided pipeline 209, the air enters into the premixed gas chamber and uniformly diffuses from the middle to the positions corresponding to the four main combustion nozzles 206, the gas and the air in the space of the premixed gas chamber corresponding to the main combustion nozzle 206 are fully mixed in the premixed gas chamber to form uniform premixed gas, the equal distribution of the gas and the air for the four main combustion nozzles 206 in the same group is realized, and sufficient combustion of each nozzle is ensured.
[0056] As Figure 4As shown, the explosion-proof fire extinguishing device in the first pry-mounted unit 3 includes an explosion-proof control cabinet 303, two explosion-proof fans 304, three combustible gas detectors 305, and a plurality of suspended ultra-fine dry powder fire extinguishers 306, and an explosion-proof lighting device 404. The explosion-proof fans 304 are symmetrically arranged at the bottom of the two sides of the inner wall of the container 307 in the first pry-mounted unit 3, connected with the explosion-proof control cabinet 303, and the exhaust port is provided with an explosion-proof shutter 308. One 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 arranged in the middle of the top beam of the container 307 above the gas cylinder or fuel tank 301. The three combustible gas detectors 305 are all connected with the explosion-proof control cabinet 303. The suspended ultra-fine dry powder fire extinguisher 306 is suspended and fixed on the fire extinguisher annular lifting support 309 of the ceiling of the container 307, and the bottom of the fire extinguisher annular lifting support 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 electromagnetic 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 with the explosion-proof control cabinet 303. The explosion-proof control cabinet 303 is connected and installed with a touch panel 310 on the outer wall of the container 307, which displays the gas concentration, fan state 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 to forcibly exhaust air, and at the same time triggers the pneumatic electromagnetic valve switch to activate the suspended ultra-fine dry powder fire extinguisher 306 in the corresponding area to release dry powder, realizing the whole process automation disposal of explosion-proof, fire extinguishing and risk removal.
[0057] The explosion-proof lighting device 404 of the 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. Each LED explosion-proof lamp 311 of the LED explosion-proof lamp group is connected in parallel to the explosion-proof control cabinet 303 through an explosion-proof junction box 312, and a lighting switch control module is integrated in the touch panel 310. When the combustible gas detector 305 alarms or the suspended ultra-fine dry powder fire extinguisher 306 starts, the touch panel 310 automatically switches the lighting mode to an emergency high-brightness state.
[0058] As Figure 6As shown, the gas pipeline 5 includes a main pipeline 501 provided with a multi-channel converging interface, one end of the main pipeline 501 is connected with a plurality of gas cylinders or fuel tanks 301 through high-pressure hoses and explosion-proof quick connectors, the other end of the main pipeline 501 is connected with a vaporization furnace 302 and a gas main shut-off valve 502 in series, and then is divided into five branch pipes to connect five groups of gas inlet interfaces 204 of the multi-channel combustion vehicle, each branch pipe is sequentially connected with an intelligent pressure reducing valve 503 with pressure feedback and an intelligent valve positioner 504 integrated with a liquid crystal screen, wherein the input end of the intelligent valve positioner 504 is connected with a pressure stabilizing branch of an existing air compressor through a filter 505, which is well known to those skilled in the art, and the output end is connected with the gas inlet interface 204 of the multi-channel combustion vehicle through a corrugated flame arrester 506; the intelligent valve positioner 504 integrated with the liquid crystal screen is connected with an AI intelligent iterative control system, valve opening degree information is fed back to the AI intelligent iterative control system in real time, the AI intelligent iterative control system generates valve opening degree adjustment instructions for the next period based on preset target temperature parameters, and the instructions are returned to the intelligent valve positioner 504 to execute opening degree adjustment, thereby forming a closed-loop control link of dynamic matching of gas flow and temperature field.
[0059] As shown in Figure 5 As shown, the box body of the second pry unit 4 is provided with two explosion-proof fans 304, the explosion-proof fans 304 are symmetrically arranged at the bottom of the inner wall of the box body of the second pry unit 4 and are connected with the explosion-proof control cabinet 303, an explosion-proof louver 308 is installed at the air outlet, and universal locking roller groups 103 are installed at the bottom of the box body of the second pry unit 4 and the first pry unit 3.
[0060] The number of each device in the embodiment is one preferred configuration of the embodiment, and other number configurations are also within the protection scope of the present application.
[0061] The AI intelligent iterative control system is embedded with a deep spatiotemporal sequence prediction model based on a long short-term memory (LSTM) architecture known to those skilled in the art, and is arranged on a computer end to receive real-time measured data from a multi-modal fire field environment monitoring system, including fire field holographic images, temperature spatiotemporal distribution, and multi-dimensional wind field parameters, wherein the multi-dimensional wind field parameters include wind speed vector, wind inclination angle, and turbulence intensity; the LSTM model is used to perform spatiotemporal feature fusion and nonlinear modeling on multi-source heterogeneous data, and output a dynamic opening degree optimization value of a gas control valve in a three-dimensional fire plume reconstruction combustion system, a target wind speed and angle control instruction of a multi-dimensional wind field simulation system 1; the predicted value is transmitted in real time to a PLC intelligent dynamic control system of the AI intelligent iterative control system, and the PLC intelligent dynamic control system dynamically adjusts the opening degree 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 accurate control and reproduction of real fire field test conditions; the PLC intelligent dynamic control system and the host computer are interconnected through an OPC UA protocol, and real-time visual presentation of the fire field holographic thermal map, the gas valve opening degree deviation curve, the fan operation state matrix, and the control parameter iterative process is realized.
[0062] The multi-modal fire field environment monitoring system of the embodiment includes a fire field panoramic video acquisition unit, a fire field space temperature field monitoring unit, and a wind speed monitoring unit. The panoramic video acquisition unit adopts a high-resolution camera and an infrared imaging device to capture real-time visible light and thermal radiation images of the fire field and monitor the panoramic video of the fire field. The temperature field monitoring unit is composed of a distributed thermocouple and an infrared thermometer, and is used to collect real-time fire field space temperature distribution data 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 real-time wind field wind speed, direction, and pressure data. The monitoring data is transmitted in real time to the AI intelligent iterative control system on the computer end through a high-speed communication network, accurate control of the test is realized, and the whole process data is recorded and visualized.
[0063] The high-resolution camera and infrared imaging device, the distributed thermocouple and infrared thermometer, and the ultrasonic anemometer and pressure sensor of the embodiment adopt existing products or structures known to those skilled in the art, and the connection with the AI intelligent iterative control system also adopts an existing connection method known to those skilled in the art.
[0064] The high-resolution camera and infrared imaging device, the distributed thermocouple and infrared thermometer, and the ultrasonic anemometer and pressure sensor of the fire field of the embodiment are arranged in a manner known to those skilled in the art.
[0065] The multi-dimensional wind field simulation system 1 is distributed and arranged in a matrix topology form by a plurality of high dynamic axial flow fans 101, each of which is equipped with an independent frequency converter 102 capable of continuously adjusting the wind speed; the array of high dynamic axial flow fans 101 adopts a PLC intelligent dynamic control strategy in the AI intelligent iterative control system to simulate the wind field conditions under complex fire scenarios, including uniform wind field and gradient wind field; the multi-dimensional wind field simulation system 1 is connected with ultrasonic wind speed and direction sensors and pressure sensors in the multi-modal fire environment monitoring system, real-time monitors multi-dimensional parameters of the wind field, and feeds back monitoring data to the AI intelligent iterative control system, analyzes and regulates the multi-scale errors between the wind field monitoring data and preset target parameters, and ensures accurate reproduction of the wind field conditions; the multi-dimensional wind field simulation system 1 is integrated with a multi-degree-of-freedom universal locking roller group 103 at the bottom, supports all-terrain movement in various environments, and 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 the embodiment all adopt existing products or structures known to those skilled in the art, and the connection between them also adopts an existing connection method known to those skilled in the art.
[0067] The structures not described in detail in the embodiment all adopt existing products or structures known to those skilled in the art, and the connection between them also adopts an existing connection method known to those skilled in the art.
[0068] The electrical control cabinet 402, the intelligent valve positioner 504, the intelligent pressure reducing valve 503, and the AI intelligent iterative control system of the embodiment all adopt existing products or structures known to those skilled in the art, and the connection or communication method between them also adopts an existing connection or communication method known to those skilled in the art.
[0069] The method of the multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device provided by the 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 a target site, and move to a preset position, arrange them in a manner known to those skilled in the art, and arrange test pieces corresponding to the multi-channel combustion vehicle in a method known to those skilled in the art;
[0071] S2: Start the explosion-proof fire extinguishing device in the first pry unit 3, and the explosion-proof control cabinet 303, the combustible gas detector 305 and the suspended ultra-fine dry powder extinguisher 306 form a linkage fire extinguishing system, which monitors the combustible gas concentration in the pry unit in real time and keeps the whole process running; if the combustible gas detector detects that the combustible gas concentration in the first pry unit 3 is greater than or equal to 25% LEL at any time, LEL represents the lower explosive limit, the suspended ultra-fine dry powder extinguisher 306 is started immediately and the power supply is cut off, and the test is stopped immediately;
[0072] S3: The gas pipeline 5 of the first pry unit 3 is connected to the gas inlet interface 204 of the multi-channel combustion vehicle through the explosion-proof quick flange, the output end of the power distribution cabinet 401 of the second pry unit 4 is connected to the power supply interface of the multi-channel combustion vehicle and the power supply port of the high dynamic axial flow fan 101 through the waterproof cable, and 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 the shielded twisted pair;
[0073] S4: Input the target fire scene parameters including flame shape, temperature gradient and wind speed vector in the AI intelligent iterative control system on the computer end, generate the initial control instruction set, and adopt the method 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: Trigger the high-energy pulse spark igniter 208 to ignite the flame, activate the fire field panoramic camera, distributed thermocouple and ultrasonic anemometer, and feed the 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 the real fire field, and the AI intelligent iterative control system converts the simulated non-uniform temperature field temperature and wind speed into intelligent valve positioner valve opening degree ugas, electronic flow control valve opening degree uair and high dynamic axial flow fan 101 fan frequency converter frequency ffan control instructions based on the deviation of real-time data and target curve, and realizes the dynamic non-uniform temperature field simulation of the target fire scene through real-time adjustment of each instruction; The system control instruction is generated according to the following formula:
[0077]
[0078] In the formula: α, β, γ are coupling coefficients, the values of the coupling coefficients are determined by the trained LSTM model embedded in the AI intelligent iterative control system, and a person 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; the conversion of the current curve and the control instruction is realized by adding the intelligent valve positioner valve opening degree ugas, the electronic flow control valve opening degree uair and the fan frequency converter frequency ffan terms in the existing PID control mode;
[0079] S8: When the test is terminated, 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 from running;
[0080] S9: Store the full-cycle test data package, including the flame shape dynamic sequence, the temperature field distribution matrix and the wind field regulation log, for fire scene reproduction analysis.
[0081] In the present specification, the devices disclosed in the embodiments correspond to the methods disclosed in the embodiments, and the relevant parts are described in the method part.
[0082] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A multi-channel, asynchronously regulated, non-uniform temperature field combustion system, characterized in that, The application relates to a multi-channel combustion vehicle, which is provided with an arc-shaped shell, a plurality of groups of independent air inlet interfaces and air inlet interfaces are arranged on the side of the arc-shaped shell, a plurality of combustion groups are uniformly arranged on the outer surface of the arc-shaped shell, and each combustion group is provided with a premixed gas chamber at the lower part; each premixed gas chamber is communicated with a group of air inlet interfaces and air inlet interfaces, the air inlet interfaces are communicated with the premixed gas chamber through a multi-stage uniform distribution air inlet pipe structure, and the air inlet interfaces are communicated with the premixed gas chamber through an air inlet pipeline; the air inlet interfaces are connected with gas pipelines capable of adjusting the gas flow, the air inlet interfaces are connected with fan pipelines capable of adjusting the air flow, the gas and air ratios of each channel of the multi-channel combustion vehicle are independently adjusted, the combustion of a non-uniform temperature field is realized, a central premixed combustion nozzle and a plurality of main combustion nozzles are arranged in the combustion group; the multi-stage uniform distribution air inlet pipe structure uniformly supplies gas to each main combustion nozzle and the central premixed combustion nozzle; the multi-stage uniform distribution air inlet pipe structure comprises a central branch pipe for supplying gas to the central premixed combustion nozzle and a plurality of symmetrical distribution pipelines for independently supplying gas to each main combustion nozzle, the lower ends of the symmetrical distribution pipelines and the central branch pipe are communicated and then communicated with the air inlet pipeline, the air inlet pipeline is communicated with the air inlet interfaces, the gas enters the premixed gas chamber from the symmetrical distribution pipelines and the central branch pipe, is fully premixed with air in the premixed gas chamber to form uniform premixed gas, and the premixed gas serves as fuel of the main combustion nozzles and the central premixed combustion nozzle, a plurality of groups of long-strip-shaped combustion groups are uniformly arranged along the circumferential direction of the outer surface of the arc-shaped shell, four or six main combustion nozzles and one central premixed combustion nozzle are uniformly arranged along the long axis of each long-strip-shaped combustion group, the central premixed combustion nozzle is located at the center of the long-strip-shaped combustion group along the long axis direction, and the main combustion nozzles are symmetrically distributed on the two sides of the central premixed combustion nozzle along the long axis direction of the long-strip-shaped combustion group; the central premixed combustion nozzle is internally provided with a high-energy pulse electric spark igniter.
2. A multi-channel, asynchronously regulated, non-uniform temperature field combustion system according to claim 1, wherein, Each main combustion nozzle corresponds to a symmetrical distribution pipeline which extends into the premixed gas chamber, the symmetrical distribution pipeline is communicated with a first symmetrical branch and a second dynamic balance branch, and the air inlet pipeline is communicated with the premixed gas chamber through the first symmetrical branch, the second dynamic balance branch and the symmetrical distribution pipeline in sequence.
3. A multi-pass, dynamically non-uniform temperature field, skid-mounted combustion device, characterized in that, The application relates to a multi-channel asynchronous regulation non-uniform temperature field combustion system, which comprises an AI intelligent iterative control system, a modular movable skid-mounted integrated system, a multi-modal fire field environment monitoring system and a multi-dimensional wind field simulation system; the multi-channel asynchronous regulation non-uniform temperature field combustion system is used for simulating a dynamic non-uniform temperature field combustion state; the modular movable skid-mounted integrated system is used for providing flow-adjustable gas and air for the multi-channel asynchronous regulation non-uniform temperature field combustion system; the multi-dimensional wind field simulation system corresponds to the multi-channel asynchronous regulation non-uniform temperature field combustion system and is used for simulating on-site wind field conditions; the multi-modal fire field environment monitoring system is used for monitoring flame shape, temperature field and wind field data; and the AI intelligent iterative control system fuses the flame shape, temperature field and wind field data in real time through an LSTM model and dynamically optimizes the flow control of the gas pipeline and the fan pipeline.
4. A dynamically non-uniform temperature field skid-mounted combustion apparatus of multi-channel asynchronous regulation according to claim 3, characterized in that, The modular movable prying integrated system comprises a first prying unit and a second prying unit; the first prying unit is integrated with a gas cylinder or fuel tank, a vaporizing furnace, an explosion-proof fire extinguishing device, an explosion-proof lighting device and the gas pipeline; the second prying unit is integrated with a power distribution cabinet, an electrical control cabinet, a high-pressure centrifugal fan and the fan pipeline.
5. A dynamically non-uniform temperature field skid-mounted combustion apparatus of multi-channel asynchronous regulation according to claim 4, characterized in that, The first prying unit is a container prying unit, the explosion-proof fire extinguishing device comprises an explosion-proof control cabinet, an explosion-proof fan, a combustible gas detector and a plurality of suspended ultra-fine dry powder fire extinguishers; the explosion-proof fan is symmetrically arranged on the inner wall of the container prying unit; the exhaust port of the container prying unit is provided with an explosion-proof shutter; the combustible gas detector is suspended above the accessory flange joint of the gas pipeline and the gas cylinder or fuel tank for detecting combustible gas leakage; the suspended ultra-fine dry powder fire extinguisher is suspended on the ceiling of the first prying unit container; the explosion-proof fan, the combustible gas detector and the suspended ultra-fine dry powder fire extinguisher are electrically connected with the explosion-proof control cabinet; the explosion-proof control cabinet is connected with a touch panel installed on the outer wall of the first prying unit container; the touch panel can display the gas concentration, the fan state and the 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 to forcibly exhaust air, and simultaneously activates the suspended ultra-fine dry powder fire extinguisher in the corresponding area to release dry powder, thereby realizing the full-process automatic disposal of explosion-proof, fire extinguishing and risk removal; the explosion-proof lighting device comprises a plurality of explosion-proof lamps which are symmetrically installed on the inner ceiling of the first prying unit container; the explosion-proof lamps are connected in parallel to the explosion-proof control cabinet; the lighting switch control module of the explosion-proof lamps is integrated in the touch panel; when the combustible gas detector alarms or the suspended ultra-fine dry powder fire extinguisher starts, the touch panel automatically switches the lighting mode to an emergency high-light state.
6. A multi-channel dynamically non-uniform temperature field skid-mounted combustion apparatus according to claim 5, characterized in that, The gas pipeline comprises a main pipeline provided with a multi-channel converging interface, one end of the main pipeline is connected with a plurality of gas cylinders or fuel tanks through high-pressure hoses and explosion-proof quick connectors, the other end of the main pipeline away from the gas cylinders or fuel tanks is sequentially connected with a vaporization furnace and a gas main shut-off valve, and then is divided into a plurality of branches, each branch of the main pipeline is sequentially connected with an intelligent pressure reducing valve with pressure feedback and an intelligent valve positioner integrated with a liquid crystal screen, an input end of the intelligent valve positioner is connected with a pressure stabilizing branch of an air compressor through a filter, and an output end of the intelligent valve positioner is connected with the gas inlet interface through a corrugated flame arrester.
7. A dynamically non-uniform temperature field skid-mounted combustion apparatus of multi-channel asynchronous regulation according to claim 6, characterized in that, The multi-dimensional wind field simulation system comprises a plurality of high dynamic axial flow fans, the high dynamic axial flow fans are distributed in a matrix topology form, each high dynamic axial flow fan is provided with an independent frequency converter, the multi-modal fire field environment monitoring system comprises a fire field panoramic video acquisition unit, a fire field space temperature field monitoring unit and a wind speed monitoring unit, the fire field panoramic video acquisition unit is used for capturing visible light and thermal radiation images of a dynamic non-uniform temperature field state fire field simulated by the multi-channel asynchronous control non-uniform temperature field combustion system in real time, and monitoring a fire field panoramic video; the fire field space temperature field monitoring unit is composed of distributed thermocouples and an infrared thermometer, and is used for acquiring fire field space temperature distribution data in real time and generating a three-dimensional temperature field model; the wind speed monitoring unit is composed of an ultrasonic anemometer and a pressure sensor, and is used for monitoring wind speed, wind direction and wind pressure data of a wind field simulated by the multi-dimensional wind field simulation system in real time; data monitored by the multi-modal fire field environment monitoring system is transmitted to the AI intelligent iterative control system of the computer end in real time through a communication network.
8. The implementation method of the multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device, the multi-channel asynchronous regulation dynamic non-uniform temperature field skid-mounted combustion device is used in claim 7, characterized in that, Specifically comprising the following steps: S1: transporting the first pry unit, the second pry unit, the multi-channel combustion vehicle, the multi-modal fire field environment monitoring system and the multi-dimensional wind field simulation system to a target site, and moving to a preset position; S2: starting the explosion-proof fire extinguishing device in the first pry unit, and forming a linkage fire extinguishing system with the explosion-proof control cabinet, the combustible gas detector and the suspended ultra-fine dry powder fire extinguisher, monitoring the gas concentration in the first pry unit in real time and keeping the whole process running; if the combustible gas detector detects that the gas concentration in the first pry unit is greater than or equal to 25% LEL at any time, the suspended ultra-fine dry powder fire extinguisher is started immediately and the power supply is cut off, and the test is stopped immediately. S3: The gas pipeline of the first pry-mounted unit is connected to the air inlet interface of the multi-channel combustion vehicle through the anti-explosion quick flange, the output end of the power distribution cabinet of the second pry-mounted unit is connected to the power supply interface of the multi-channel combustion vehicle and the power supply port of the high-dynamic axial flow fan through the waterproof cable, and the communication interface of the electrical control cabinet is connected to the PLC controller of the multi-channel combustion vehicle and the high-dynamic axial flow fan through the shielded twisted pair cable; S4: Input the target fire scene parameters including flame shape, temperature gradient and wind speed vector in the AI intelligent iterative control system on the computer end to generate the 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 the preset wind field; S6: Trigger the high-energy pulse spark igniter to ignite the flame, activate the multi-modal fire field environment monitoring system, and feed back the flame shape, temperature field and wind field data to the AI intelligent iterative control system in real time; S7: The AI intelligent iterative control system iteratively optimizes the intelligent valve positioner, the opening of the electronic flow control valve and the inclination angle instruction of the high-dynamic axial flow fan based on the deviation of real-time data and preset parameters through the LSTM model; by controlling the combustion state and wind field data of different combustion groups of the multi-channel combustion vehicle, the target fire scene dynamic non-uniform temperature field simulation is realized; S8: When the test is terminated, 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: Store the full-cycle test data package including flame shape dynamic sequence, temperature field distribution matrix and wind field regulation log for fire scene reproduction analysis.
Citation Information
Patent Citations
Dual-delay premixing type short-flame low-nitrogen submerged burner
CN112283707A
Tunnel structure multi-dimensional space loading fire test system and implementation method thereof
CN113009067A