Intelligent vehicle-mounted mobile fire extinguishing system and method

Abstract

The invention discloses an intelligent vehicle-mounted mobile fire extinguishing system, and relates to the technical field of electric fire control technical equipment.The intelligent vehicle-mounted mobile fire extinguishing system comprises a vehicle-mounted platform, and the vehicle-mounted platform is provided with a modular high-pressure storage tank set, a hose structure and a pressure compensation control unit; one end of the hose structure is connected to the output end of the modular high-pressure storage tank group, and the other end of the hose structure extends into the inner space of the cable trench; the pressure compensation control unit is arranged on the top of the modular high-pressure storage tank group, and the pressure compensation control unit generates optimal perfusion parameters according to the three-dimensional modeling data of the cable trench and the fluid diffusion simulation result and dynamically adjusts the output pressure of the modular high-pressure storage tank group according to the length of the hose structure. The problem that a traditional fixed fire extinguishing system is difficult to adapt to cable trenches with different section sizes is solved, efficient utilization and uniform coverage of a fire extinguishing agent are achieved through intelligent regulation and control, and the fire extinguishing efficiency and the success rate are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power fire-fighting technology equipment, and in particular to an intelligent vehicle-mounted mobile fire extinguishing system and method. BACKGROUND

[0002] At present, for the cable tunnel / cable trench or comprehensive pipe gallery fire extinguishing system, the conventional water mist fire extinguishing system realizes the delivery of extinguishing agent through the pipe network and the pump house, and this pipe network structure is a basic component part of the fixed fire extinguishing facility, and the ultra-fine dry powder fire extinguishing device realizes coverage through the whole line arrangement; in actual application, the installation and maintenance cost is very high.

[0003] In addition, part of the cable passage is only configured with a handheld fire extinguisher due to cost limitation or imperfect specification, the fire extinguishing efficiency is low, and the fire is prone to be out of control. The adaptability of the fixed fire extinguishing system to different section sizes is insufficient, and the intelligent response mechanism is lacking, and the initial fire control ability is limited. When facing the characteristics of the internal space of the cable tunnel / cable trench being closed and the opening being few, the effect of the traditional fire extinguishing mode is further limited.

[0004] Therefore, an intelligent vehicle-mounted mobile fire extinguishing system is needed to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide an intelligent vehicle-mounted mobile fire extinguishing system and method to solve the problems that part of the cable passage is only configured with a handheld fire extinguisher due to cost limitation or imperfect specification, the fire extinguishing efficiency is low, and the fire is prone to be out of control. The adaptability of the fixed fire extinguishing system to different section sizes is insufficient, and the intelligent response mechanism is lacking, and the initial fire control ability is limited. When facing the characteristics of the internal space of the cable tunnel / cable trench being closed and the opening being few, the effect of the traditional fire extinguishing mode is further limited.

[0006] On one aspect, the intelligent vehicle-mounted mobile fire extinguishing system provided by the present application adopts the following technical scheme: An intelligent vehicle-mounted mobile fire extinguishing system, comprising a vehicle-mounted platform, a modularized high-pressure storage tank group, a hose structure and a pressure compensation control unit are arranged on the vehicle-mounted platform; One end of the hose structure is connected to the output end of the modularized high-pressure storage tank group, and the other end extends into the internal space of the cable trench; The pressure compensation control unit is arranged on the modularized high-pressure storage tank group, the pressure compensation control unit generates optimal filling parameters according to the three-dimensional modeling data and the fluid diffusion simulation results of the cable trench, and dynamically adjusts the output pressure of the modularized high-pressure storage tank group according to the length of the hose structure.

[0007] Further, the modular high-pressure tank group comprises a plurality of independent tank units arranged on the vehicle-mounted platform, the independent tank units are connected in parallel, and the independent tank units are respectively provided with a pressure regulating valve and a flow sensor; the pressure regulating valve is connected with the pressure compensation control unit through an electrical signal to receive real-time adjustment instructions; The flow sensor is connected with the pressure compensation control unit to monitor the instantaneous flow of the fire extinguishing agent and feed back monitoring data to the pressure compensation control unit.

[0008] Further, the hose structure comprises an inner conveying pipe connected to an output end of the modular high-pressure tank group, the other end of the inner conveying pipe extends into an internal space of the cable trench, the inner conveying pipe is made of a high-molecular elastic material; the outer conveying pipe is further provided with an outer protective sleeve made of a high-temperature-resistant and flame-retardant material; a flexible support framework is arranged between the outer protective sleeve and the inner conveying pipe, and the flexible support framework is woven by high-strength fibers.

[0009] Further, the pressure compensation control unit comprises a central processing unit, a three-dimensional modeling module, a fluid diffusion simulation module and a dynamic pressure compensation algorithm module; the three-dimensional modeling module is used to construct a three-dimensional model of the cable trench; the fluid diffusion simulation module is used to simulate and calculate a diffusion path of the fire extinguishing agent based on the three-dimensional model; the dynamic pressure compensation algorithm module is used to calculate output pressure values of the independent tank units according to a length of the hose structure, a viscosity of the fire extinguishing agent and internal space characteristics of the cable trench; the central processing unit is connected with the pressure regulating valve, and adjustment instructions are sent to the pressure regulating valve through the central processing unit to ensure uniform coverage of the fire extinguishing agent in the cable trench.

[0010] Further, the fire detection module and the fire extinguishing starting module are further included. The fire detection module comprises a temperature sensor array and a smoke concentration sensor, and the temperature sensor array and the smoke concentration sensor are arranged at the internal space of the cable trench to monitor temperature changes and smoke concentrations in the cable trench in real time. The fire extinguishing starting module is connected with the temperature sensor array, the smoke concentration sensor, the modular high-pressure tank group and the pressure compensation control unit, and the fire extinguishing starting module automatically starts the modular high-pressure tank group after receiving a fire signal and adjusts output pressure of the modular high-pressure tank group through the pressure compensation control unit.

[0011] Further, the fire detection module further comprises a multi-point positioning function, and the multi-point positioning function is connected with the temperature sensor array and the fire extinguishing starting module.

[0012] Further, a hose winding and unwinding mechanism is further included, which cooperates with the hose structure to control unwinding and winding of the hose structure; The hose winding and unwinding mechanism includes a winding and unwinding frame arranged on the vehicle-mounted platform, a driving motor is arranged on the winding and unwinding frame, an output end of the driving motor is provided with a winding shaft, the hose structure is wound on the outside of the winding shaft, and a guide pulley block cooperating with the hose structure is further arranged on the winding and unwinding frame.

[0013] Further, the hose winding and unwinding mechanism further includes a tension detection unit arranged on the guide pulley block to monitor the tension change of the hose in the winding and unwinding process in real time; when the tension exceeds a preset range, the rotating speed of the driving motor is adjusted.

[0014] Further, a fire extinguishing agent remaining amount monitoring module is further included; The fire extinguishing agent remaining amount monitoring module includes a liquid level sensor arranged on the bottom of the independent storage tank unit to monitor the remaining amount of the fire extinguishing agent in the independent storage tank unit in real time; the independent storage tank unit is further provided with an alarm device connected with the liquid level sensor, and when the liquid level is lower than a preset threshold, the alarm device sends an audible and visual alarm signal.

[0015] On the other hand, the intelligent vehicle-mounted mobile fire extinguishing method provided by the present application adopts the following technical scheme: An intelligent vehicle-mounted mobile fire extinguishing method, comprising the following steps: S1, a temperature sensor array and a smoke concentration sensor in a fire detection module monitor the environmental state in a cable trench in real time; S2, when a fire signal is detected, a fire extinguishing starting module automatically starts a modular high-pressure storage tank group, and adjusts the output pressure of a plurality of independent storage tank units through a pressure compensation control unit; S3, at the same time, a hose winding and unwinding mechanism unwinds the hose structure to extend the front end of the hose structure into the internal space of the cable trench; S4, then the pressure compensation control unit generates optimal filling parameters according to the three-dimensional modeling data of the cable trench and the fluid diffusion simulation results, and dynamically adjusts the output pressure of the plurality of independent storage tank units according to the length of the hose to ensure uniform coverage of the fire extinguishing agent in the cable trench; S5, the fire extinguishing agent in the plurality of independent storage tank units is delivered to the internal space of the cable trench through the hose structure to achieve full submersion fire extinguishing; S6, after the fire extinguishing operation is completed, the hose winding and unwinding mechanism rewinds the hose structure to the winding shaft, and the fire extinguishing agent remaining amount monitoring module checks the remaining amount of the fire extinguishing agent in the independent storage tank unit, and if it is insufficient, an alarm signal is sent to remind the operator to supplement the fire extinguishing agent.

[0016] The beneficial effects of the present application compared with the prior art are: 1) The present application solves the problem that the traditional fixed fire extinguishing system is difficult to adapt to different cross-section size cable trenches by combining modular high-pressure storage tank groups and hose structures. Among them, the modular high-pressure storage tank group can flexibly configure the number of independent storage tank units according to actual needs; and the hose structure can quickly expand and penetrate into the internal space of the cable trench, without relying on complex pipe network or pump house facilities, thereby significantly reducing the installation and maintenance costs, and the flexible design of the hose structure can adapt to the narrow and irregular space structure inside the cable trench, thereby ensuring efficient delivery of fire extinguishing agent.

[0017] 2) The present application also realizes intelligent regulation and control of fire extinguishing agent filling through a pressure compensation control unit, solves the problem that the traditional fire extinguishing system usually adopts fixed pressure output, which is difficult to ensure uniform coverage of fire extinguishing agent in the cable trench, especially in the long-distance delivery process. At the same time, through the dynamic pressure compensation algorithm module, the output pressure of the independent storage tank unit is adjusted in real time according to the length of the hose and the internal space characteristics of the cable trench, to ensure uniform distribution of the fire extinguishing agent in the entire cable trench, thereby improving the fire extinguishing efficiency.

[0018] 3) The present application also realizes accurate identification of the fire occurrence location through the multi-point positioning function of the fire detection module, solves the problem that the traditional fire extinguishing system often adopts a full-area coverage method, resulting in waste of fire extinguishing agent. At the same time, through accurate positioning of the fire area, the fire extinguishing agent is preferentially filled into the fire area, and then gradually expanded to the entire internal space of the cable trench, thereby maximizing the utilization efficiency of the fire extinguishing agent and shortening the fire extinguishing time.

[0019] 4) The present application also solves the problem that the hose is prone to twisting or relaxing and stacking during winding and unwinding through the design of the hose winding and unwinding mechanism and the tension detection unit. The present application monitors the hose tension in real time through the tension detection unit and automatically adjusts the speed of the driving motor to ensure that the hose always maintains appropriate tension during winding and unwinding, improving the convenience of operation and the service life of the hose, thereby solving the problem that the traditional hose winding and unwinding mechanism usually lacks tension control function, which can easily cause damage to the hose or inconvenience in operation.

[0020] 5) The present application also realizes real-time monitoring of the remaining amount of fire extinguishing agent through the design of the fire extinguishing agent remaining amount monitoring module, solves the problem that the traditional fire extinguishing system usually lacks monitoring function of the remaining amount of fire extinguishing agent, which can easily cause insufficient fire extinguishing agent to complete the fire extinguishing task. The present application monitors the remaining amount of fire extinguishing agent in the storage tank in real time through the liquid level sensor and sends an alarm signal when the remaining amount is insufficient, reminding the operator to replenish the fire extinguishing agent in time to ensure the smooth completion of the fire extinguishing task. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of an intelligent vehicle-mounted mobile fire extinguishing system of an embodiment of the present application.

[0022] Figure 2 is a whole structure block diagram of an embodiment of the present application.

[0023] Figure 3 is a schematic diagram of an intelligent vehicle-mounted mobile fire extinguishing method of an embodiment of the present application.

[0024] Legend of reference signs: 1, vehicle-mounted platform; 2, modular high-pressure storage tank group; 3, hose structure; 4, pressure compensation control unit; 5, cable trench; 6, cable; 7, hose winding and unwinding mechanism; 8, fire detection module; 9, fire starting point. DETAILED DESCRIPTION

[0025] The following will be described in detail with reference to the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0026] In one aspect, an intelligent vehicle-mounted mobile fire extinguishing system is disclosed in the embodiments of the present application, referring to Figure 1 and Figure 2 In the embodiments, the intelligent vehicle-mounted mobile fire extinguishing system comprises a vehicle-mounted platform 1, a modular high-pressure storage tank group 2, a hose structure 3, and a pressure compensation control unit 4. The modular high-pressure storage tank group 2 is installed at the front of the vehicle-mounted platform 1, and the modular high-pressure storage tank group 2 stores fire extinguishing agent, and a fire extinguishing agent outlet is installed at the output end of the modular high-pressure storage tank group 2 to facilitate the output of the fire extinguishing agent. Specifically, the modular high-pressure storage tank group 2 comprises independent storage tank units, pressure regulating valves, and flow sensors. The independent storage tank units are provided in multiple numbers, and the multiple independent storage tank units are respectively installed at the front of the vehicle-mounted platform 1, and are connected to each other in parallel to form a storage tank group, and part or all of the independent storage tank units can be selectively opened according to actual needs.

[0027] In the embodiments, the pressure regulating valves and the flow sensors are respectively provided in multiple numbers, and each independent storage tank unit is equipped with one pressure regulating valve and one flow sensor. The pressure regulating valve is used to effectively regulate the output pressure of the independent storage tank unit, and the flow sensor is used to monitor the instantaneous flow of the fire extinguishing agent in the independent storage tank unit.

[0028] Preferably, in the embodiment, the intelligent vehicle-mounted mobile fire extinguishing system further comprises a fire extinguishing agent residual amount monitoring module, which comprises a liquid level sensor and an alarm device. The liquid level sensor is installed on the inner bottom of the independent storage tank unit to monitor the residual amount of the fire extinguishing agent in the independent storage tank unit in real time; the alarm device is installed on the independent storage tank unit, and the alarm device is in communication connection with the liquid level sensor.

[0029] When the liquid level sensor detects that the residual amount of the fire extinguishing agent in the independent storage tank unit is lower than a preset threshold, the alarm device sends an audible and visual alarm signal to remind the operator to replenish the fire extinguishing agent in time. This design ensures the smooth completion of the fire extinguishing task, thereby avoiding the failure of fire extinguishing due to insufficient fire extinguishing agent. Specifically, the alarm device is a combination structure of a buzzer and an LED indicator light, which will not be described in detail here.

[0030] Meanwhile, referring to Figure 1 and Figure 2 , in the embodiment, the hose structure 3 is designed to be foldable, one end of the hose structure 3 is connected to the fire extinguishing agent outlet of the modular high-pressure storage tank group 2 through a pipeline, and the other end of the hose structure 3 extends into the internal space of the cable trench 5 to deliver the fire extinguishing agent to the internal space of the cable trench 5. The internal space of the cable trench 5 is laid with cables 6.

[0031] Specifically, in the embodiment, the hose structure 3 comprises an inner layer delivery pipe, an outer layer protective sleeve, and a flexible support framework. One end of the inner layer delivery pipe is connected to the fire extinguishing agent outlet of the modular high-pressure storage tank group 2 through a pipeline, and the other end of the inner layer delivery pipe extends into the internal space of the cable trench 5. The inner layer delivery pipe is made of a high-molecular elastic material, has excellent pressure resistance and flexibility, and can maintain stable fire extinguishing agent delivery capacity in a curved state; the outer layer protective sleeve is sleeved and wrapped outside the inner layer delivery pipe, and the outer layer protective sleeve is made of a high-temperature-resistant and flame-retardant material to protect the inner layer delivery pipe from the external high-temperature environment.

[0032] The flexible support framework is nested between the outer layer protective sleeve and the inner layer delivery pipe, and the flexible support framework is woven from high-strength fibers to enhance the overall structural strength of the hose, thereby preventing the hose from deforming or rupturing due to high-pressure impact of the fire extinguishing agent. This multi-layer structure design makes the hose structure 3 have good flexibility and can withstand the impact of high-pressure fire extinguishing agent.

[0033] Preferably, referring to Figure 1 and Figure 2In the embodiment, the intelligent vehicle-mounted mobile fire extinguishing system further comprises a hose winding and unwinding mechanism 7 installed at the rear of the vehicle-mounted platform 1 and cooperating with the hose structure 3 to control the unwinding and winding of the hose structure 3.

[0034] Specifically, in the embodiment, the hose winding and unwinding mechanism 7 comprises a winding and unwinding frame, a driving motor, a winding shaft and a guide pulley set. The winding and unwinding frame is installed at the rear of the vehicle-mounted platform 1; the driving motor is installed on the winding and unwinding frame; the winding shaft is installed on the output end of the driving motor through a transmission shaft, and the hose structure 3 is wound outside the winding shaft, and the unwinding and winding speed of the hose is controlled by rotating the winding shaft through the driving motor. The guide pulley set is installed on the winding and unwinding frame, and is located at the outlet of the hose and cooperates with the hose to guide the hose to stretch in a predetermined direction, thereby avoiding the hose from being twisted or wound during the stretching process.

[0035] Meanwhile, in the embodiment, the hose winding and unwinding mechanism 7 further comprises a tension detection unit installed on the guide pulley set to monitor the tension change of the hose in real time during the unwinding and winding process; when the tension detection unit detects that the tension of the hose exceeds the preset range, the rotation speed of the driving motor is automatically adjusted to ensure that the hose always maintains appropriate tension during the unwinding and winding process. After the fire extinguishing operation is completed, the hose is rewound onto the winding shaft under the reverse rotation of the driving motor, thereby completing the winding operation of the hose.

[0036] In addition, with reference to Figure 1 and Figure 2 In the embodiment, the pressure compensation control unit 4 is installed on the top of the modular high-pressure storage tank group 2, which can generate optimal filling parameters according to the three-dimensional modeling data of the cable trench 5 and the fluid diffusion simulation results, and dynamically adjust the output pressure of the modular high-pressure storage tank group 2 according to the length of the hose structure 3.

[0037] The pressure compensation control unit 4 is also connected in communication with the pressure regulating valve and the flow sensor in the modular high-pressure storage tank group 2 through electrical signals, receives real-time adjustment instructions from the pressure compensation control unit 4 through the pressure regulating valve to adjust the output pressure of the storage tank group in real time, and uses the flow sensor to monitor the instantaneous flow of the fire extinguishing agent and feeds back the monitoring data to the pressure compensation control unit 4, thereby realizing closed-loop control. Through this design, the storage tank group can flexibly adapt to different scales of fire extinguishing tasks while ensuring the stable output of the fire extinguishing agent.

[0038] Specifically, in the present embodiment, the pressure compensation control unit 4 comprises a central processor, a three-dimensional modeling module, a fluid diffusion simulation module and a dynamic pressure compensation algorithm module. Among them, the three-dimensional modeling module is used to construct the accurate three-dimensional model of the cable trench 5, and generate a digital model based on the input cable trench 5 size and shape data. The fluid diffusion simulation module performs simulation calculation of the extinguishing agent diffusion path based on the three-dimensional model, and generates the optimal parameters of the extinguishing agent filling.

[0039] At the same time, the dynamic pressure compensation algorithm module calculates the output pressure value of the tank group according to the length of the hose structure 3, the viscosity of the extinguishing agent and the internal space characteristics of the cable trench 5; the central processor is in communication connection with the pressure regulating valve, and sends adjustment instructions to the pressure regulating valve through the central processor. Through this design, the system can dynamically adjust the output pressure according to the actual situation to ensure the uniform coverage of the extinguishing agent in the cable trench 5.

[0040] In addition, referring to Figure 1 and Figure 2 , in the present embodiment, the intelligent vehicle-mounted mobile fire extinguishing system further comprises a fire detection module 8 and a fire extinguishing starting module, which are important components of the system. Among them, the fire detection module 8 is provided with a plurality of fire detection modules 8, which are uniformly installed at the internal space of the cable trench 5, and the fire detection module 8 comprises a temperature sensor array and a smoke concentration sensor; the temperature sensor array and the smoke concentration sensor are respectively installed at the internal space of the cable trench 5 for real-time monitoring of the temperature change and smoke concentration in the cable trench 5; Specifically, the temperature sensor array and the smoke concentration sensor are arranged at the key positions of the cable trench 5, including the cable 6 joint, the cable 6 dense area and other parts prone to fire, when detecting that the local temperature abnormally rises and the smoke concentration exceeds the preset threshold, it is determined that the fire occurs in the cable trench 5.

[0041] And the fire extinguishing starting module is installed on the cable trench 5, and the fire extinguishing starting module is in communication connection with the temperature sensor array, the smoke concentration sensor, the modular high-pressure tank group 2, the pressure compensation control unit 4 and the hose structure 3 respectively; when the fire extinguishing starting module receives the fire signal, the modular high-pressure tank group 2 is automatically started, and the output pressure of the tank group is adjusted through the pressure compensation control unit 4, and the hose structure 3 is expanded, preparing for fire extinguishing operation.

[0042] Preferably, in the embodiment, the fire detection module 8 also includes a multi-point positioning function, which realizes accurate identification of the fire occurrence position, solves the problem of waste of fire extinguishing agent caused by the traditional fire extinguishing system which often adopts a full-area coverage mode. At the same time, the multi-point positioning function is respectively in communication connection with the temperature sensor array and the fire extinguishing starting module. The multi-point positioning function determines the accurate position of the fire occurrence by analyzing the temperature distribution of each sensor in the temperature sensor array. The fire extinguishing starting module preferentially injects the fire extinguishing agent into the fire area according to the fire position information, and then gradually expands to the entire internal space of the cable trench 5, thereby maximizing the utilization efficiency of the fire extinguishing agent and shortening the fire extinguishing time.

[0043] On the other hand, with reference to Figures 1-3 In the embodiment, the intelligent vehicle-mounted mobile fire extinguishing method provided by the application adopts the following technical scheme: An intelligent vehicle-mounted mobile fire extinguishing method, comprising the following steps: S1, the temperature sensor array and the smoke concentration sensor in the fire detection module 8 monitor the environmental state in the cable trench 5 in real time; S2, when a fire signal is detected, the fire extinguishing starting module automatically starts the modular high-pressure storage tank group 2, and adjusts the output pressure of the multiple independent storage tank units through the pressure compensation control unit 4; S3, at the same time, the hose winding and unwinding mechanism 7 unwinds the hose structure 3 to extend the front end of the hose structure 3 into the internal space of the cable trench 5; S4, then the pressure compensation control unit 4 generates optimal injection parameters according to the three-dimensional modeling data of the cable trench 5 and the fluid diffusion simulation results, and dynamically adjusts the output pressure of the multiple independent storage tank units according to the length of the hose to ensure uniform coverage of the fire extinguishing agent in the cable trench 5; S5, the fire extinguishing agent in the multiple independent storage tank units is delivered to the internal space of the cable trench 5 through the hose structure 3 to realize full-submersion fire extinguishing; S6, after the fire extinguishing operation is completed, the hose winding and unwinding mechanism 7 rewinds the hose structure 3 to the reel, and the fire extinguishing agent remaining amount monitoring module checks the remaining amount of the fire extinguishing agent in the independent storage tank unit. If it is insufficient, an alarm signal is sent to remind the operator to supplement the fire extinguishing agent.

[0044] In order to better enable relevant persons in the art to fully understand and implement the present application, the specific implementation principles of the present application are further supplemented below in conjunction with a specific application scenario.

[0045] With reference to Figures 1-3In a certain cable trench 5 fire extinguishing scene, the cable trench 5 is about 100 meters long, the internal space is narrow and there are many irregular sections. The cable trench 5 is not equipped with a fixed fire extinguishing system, only a handheld fire extinguisher is configured, and the fire extinguishing efficiency is low. At this time, the intelligent vehicle-mounted mobile fire extinguishing system is deployed to the scene to deal with possible fires.

[0046] Firstly, the temperature sensor array and smoke concentration sensor in the fire detection module 8 start working and monitor the environmental state in the cable trench 5 in real time. When the temperature of a certain local area abnormally rises and the smoke concentration exceeds the preset threshold, the fire detection module 8 determines that a fire occurs in the cable trench 5, and analyzes the temperature distribution of each sensor in the temperature sensor array through the multi-point positioning function to determine the accurate position of the fire occurrence. For example, if the temperature at a certain joint in the middle of the cable trench 5 is significantly higher than that in other areas, it is determined that this position is the fire starting point 9.

[0047] Subsequently, after receiving the fire signal, the fire extinguishing starting module automatically starts the modular high-pressure storage tank group 2; the pressure compensation control unit 4 generates the optimal perfusion parameters according to the three-dimensional modeling data of the cable trench 5 and the fluid diffusion simulation results. In this process, the three-dimensional modeling module constructs an accurate digital model based on the input size and shape data of the cable trench 5, which specifically includes: obtaining the actual geometric parameters (such as length, width, height, turning radius, obstacle distribution, etc.) inside the cable trench 5 through laser scanning or structured light imaging technology, and combining the preset cable trench structure database for feature matching and supplementing to generate high-precision three-dimensional point cloud data; further through surface reconstruction and voxelization processing, a three-dimensional model of the cable trench with physical properties and spatial topological relationship is constructed, which can be dynamically updated to reflect the actual environmental changes.

[0048] The fluid diffusion simulation module simulates the diffusion path of the fire extinguishing agent in the cable trench 5, calculates the optimal pressure and flow rate of the fire extinguishing agent perfusion, and the specific process is: based on the computational fluid dynamics (CFD) method, combining the physical properties (such as viscosity, density, volatility) of the fire extinguishing agent and the three-dimensional model of the cable trench, a multiphase flow transmission and diffusion mathematical model is established; through the finite volume method, the flow state, coverage range and residence time of the fire extinguishing agent under different pressures and flow rates are simulated; combined with the real-time feedback of the hose length and environmental data, the simulation parameters are iteratively optimized, and the optimal pressure-flow curve and perfusion strategy that can achieve full submersion coverage and the highest utilization rate of the fire extinguishing agent are output.

[0049] For example, for a cable trench 5 with a length of 100 meters, the dynamic pressure compensation algorithm module calculates the output pressure value of the storage tank group according to the hose length, the viscosity of the fire extinguishing agent, and the internal space characteristics of the cable trench 5, and sends adjustment instructions to the pressure regulating valve through the central processor.

[0050] Meanwhile, the hose winding and unwinding mechanism 7 unwinds the hose structure 3 and extends it into the internal space of the cable trench 5; the driving motor rotates the reel through the transmission shaft to gradually release the hose from the reel. The guide pulley set guides the hose to extend in the predetermined direction, avoiding the hose from twisting or winding during the extension process. The tension detection unit monitors the tension change of the hose in real time during the winding and unwinding process, and automatically adjusts the rotating speed of the driving motor when the detected tension of the hose exceeds the preset range, to ensure that the hose always maintains appropriate tension. For example, when the hose extends to the middle of the cable trench 5, if the tension detection unit finds that the tension of the hose is too large, the driving motor reduces the rotating speed to reduce the tension; on the contrary, if the tension is too small, the rotating speed of the driving motor is increased to prevent the hose from relaxing and accumulating.

[0051] Then the fire extinguishing agent in the tank group is transported to the internal space of the cable trench 5 through the hose structure 3. The outer protective sleeve of the hose structure 3 is made of high-temperature resistant and flame-retardant material, which can effectively protect the inner conveying pipe from the external high-temperature environment. The inner conveying pipe is made of high-molecular elastic material, which has excellent pressure resistance and flexibility, and can maintain stable fire extinguishing agent conveying capacity in a curved state. The flexible support skeleton is nested between the outer protective sleeve and the inner conveying pipe, which is woven by high-strength fibers, to enhance the overall structural strength of the hose and prevent the hose from deforming or rupturing due to high-pressure impact of the fire extinguishing agent. For example, in the narrow and irregular space inside the cable trench 5, the flexible support skeleton can ensure that the hose can withstand the impact of high-pressure fire extinguishing agent in a curved state, ensuring efficient delivery of the fire extinguishing agent.

[0052] Then the fire extinguishing agent is preferentially injected into the fire area, and then gradually expanded to the entire internal space of the cable trench 5. For example, when the fire occurs at a joint in the middle of the cable trench 5, the fire extinguishing agent is first concentrated and injected into this area to quickly suppress the spread of the fire. Then, the fire extinguishing agent gradually spreads to other areas of the cable trench 5, achieving full submersion fire extinguishing. In this process, the pressure compensation control unit 4 dynamically adjusts the output pressure of the tank group according to the length of the hose and the internal space characteristics of the cable trench 5, to ensure uniform coverage of the fire extinguishing agent in the entire cable trench 5. For example, for long-distance delivery, the dynamic pressure compensation algorithm module appropriately increases the output pressure to compensate for the pressure loss caused by the increase in the length of the hose.

[0053] When the fire extinguishing operation is completed, the hose winding and unwinding mechanism 7 rewinds the hose onto the reel; the driving motor reverses the rotation to drive the reel to gradually recover the hose. The guide pulley set continues to guide the hose to recover in the predetermined direction, avoiding the hose from twisting or winding during the recovery process. The tension detection unit monitors the tension change of the hose in real time during the recovery process, to ensure that the hose always maintains appropriate tension. For example, when the hose is completely recovered onto the reel, the tension detection unit confirms that the tension of the hose is within the normal range, to ensure that the hose is not damaged or relaxed and accumulated.

[0054] Finally, the fire extinguishing agent residual amount monitoring module checks the residual amount of the fire extinguishing agent in the tank. A liquid level sensor is installed at the bottom of each independent tank unit to monitor the residual amount of the fire extinguishing agent in the tank in real time. When the liquid level sensor detects that the residual amount of the fire extinguishing agent is lower than a preset threshold, an alarm device sends an audible and visual alarm signal to remind the operator to replenish the fire extinguishing agent in time. For example, if the residual amount of the fire extinguishing agent in a certain independent tank unit is insufficient, the alarm device immediately sends an alarm, and the operator can replenish the fire extinguishing agent according to the prompt to ensure the smooth completion of the next fire extinguishing task.

[0055] Through the above steps, the intelligent vehicle-mounted mobile fire extinguishing system successfully completes the fire extinguishing task of the cable trench 5. The system not only solves the problem that the traditional fixed fire extinguishing system is difficult to adapt to cable trenches 5 of different section sizes, but also realizes efficient use and uniform coverage of the fire extinguishing agent through intelligent control, significantly improves the fire extinguishing efficiency and success rate; and the connection relationship and position relationship between the various components of the scheme are carefully designed to ensure efficient operation of the system.

[0056] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An intelligent in-vehicle mobile fire extinguishing system, characterized in that, The application relates to a vehicle-mounted platform (1) provided with a modular high-pressure storage tank group (2), a hose structure (3) and a pressure compensation control unit (4). One end of the hose structure (3) is connected to the output end of the modular high-pressure storage tank group (2), and the other end extends into the internal space of a cable trench (5). The pressure compensation control unit (4) is arranged on the modular high-pressure storage tank group (2), generates optimal filling parameters according to three-dimensional modeling data and fluid diffusion simulation results of the cable trench (5), and dynamically adjusts the output pressure of the modular high-pressure storage tank group (2) according to the length of the hose structure (3).

2. The intelligent mobile fire extinguishing system of claim 1, wherein, The modular high-pressure storage tank group (2) comprises a plurality of independent storage tank units arranged on the vehicle-mounted platform (1), the independent storage tank units are connected in parallel, and the independent storage tank units are respectively provided with pressure regulating valves and flow sensors; the pressure regulating valves are connected with the pressure compensation control unit (4) through electric signals to receive real-time adjusting instructions. The flow sensors are connected with the pressure compensation control unit (4) to monitor the instantaneous flow of the fire extinguishing agent and feed back monitoring data to the pressure compensation control unit (4).

3. The intelligent mobile fire extinguishing system of claim 1, wherein, The hose structure (3) comprises an inner conveying pipe connected to the output end of the modular high-pressure storage tank group (2), the other end of the inner conveying pipe extends into the internal space of the cable trench (5), the inner conveying pipe is made of high-molecular elastic material; an outer protective sleeve made of high-temperature-resistant and flame-retardant material is further sleeved outside the inner conveying pipe; a flexible supporting framework made of high-strength fiber is nested between the outer protective sleeve and the inner conveying pipe.

4. The intelligent mobile fire extinguishing system of claim 2, wherein, The pressure compensation control unit (4) comprises a central processing unit, a three-dimensional modeling module, a fluid diffusion simulation module and a dynamic pressure compensation algorithm module; the three-dimensional modeling module is used for constructing a three-dimensional model of the cable trench (5); the fluid diffusion simulation module is used for simulating and calculating the diffusion path of the fire extinguishing agent based on the three-dimensional model; the dynamic pressure compensation algorithm module is used for calculating the output pressure values of the independent storage tank units according to the length of the hose structure (3), the viscosity of the fire extinguishing agent and the internal space characteristics of the cable trench (5); the central processing unit is connected with the pressure regulating valves, and adjusting instructions are sent to the pressure regulating valves through the central processing unit to ensure the uniform coverage of the fire extinguishing agent in the cable trench (5).

5. The intelligent mobile fire extinguishing system of claim 1, wherein, The application further comprises a fire detection module (8) and a fire extinguishing starting module. The fire detection module (8) comprises a temperature sensor array and a smoke concentration sensor, and the temperature sensor array and the smoke concentration sensor are arranged at the internal space of the cable trench (5) to monitor the temperature change and smoke concentration in the cable trench (5) in real time. The fire extinguishing starting module is connected with the temperature sensor array, the smoke concentration sensor, the modular high-pressure storage tank group (2) and the pressure compensation control unit (4) respectively, and the fire extinguishing starting module automatically starts the modular high-pressure storage tank group (2) after receiving the fire signal, and adjusts the output pressure of the modular high-pressure storage tank group (2) through the pressure compensation control unit (4).

6. The intelligent mobile fire extinguishing system of claim 5, wherein, The fire detection module (8) further comprises a multi-point positioning function connected with the temperature sensor array and the fire extinguishing starting module respectively.

7. The intelligent mobile fire extinguishing system of claim 1, wherein, Further comprising a hose winding and unwinding mechanism (7) matched with the hose structure (3) for controlling the unwinding and winding of the hose structure (3). The hose winding and unwinding mechanism (7) comprises a winding and unwinding frame arranged on the vehicle-mounted platform (1), a driving motor arranged on the winding and unwinding frame, a reel arranged at the output end of the driving motor, and the hose structure (3) wound on the outside of the reel, and a guide pulley block matched with the hose structure (3) further arranged on the winding and unwinding frame.

8. The intelligent mobile fire extinguishing system of claim 7, wherein, The hose winding and unwinding mechanism (7) further comprises a tension detection unit arranged on the guide pulley block for monitoring the tension change of the hose in the unwinding and winding process in real time, and adjusting the rotating speed of the driving motor when the tension exceeds the preset range.

9. The intelligent mobile fire extinguishing system of claim 2, wherein, Further comprising a fire extinguishing agent residual amount monitoring module. The fire extinguishing agent residual amount monitoring module comprises a liquid level sensor arranged on the bottom of the independent storage tank unit for monitoring the residual amount of the fire extinguishing agent in the independent storage tank unit in real time, and an alarm device connected with the liquid level sensor further arranged on the independent storage tank unit, and the alarm device sends an audible and visual alarm signal when the liquid level is lower than the preset threshold.

10. An intelligent mobile fire extinguishing method for vehicle, according to the intelligent mobile fire extinguishing system for vehicle of any one of claims 1-9, characterized in that, The method comprises the following steps: S1, the temperature sensor array and the smoke concentration sensor in the fire detection module (8) monitor the environmental state in the cable trench (5) in real time; S2, when the fire signal is detected, the fire extinguishing starting module automatically starts the modular high-pressure storage tank group (2), and adjusts the output pressure of the plurality of independent storage tank units through the pressure compensation control unit (4); S3, at the same time, the hose winding and unwinding mechanism (7) unwinds the hose structure (3) to extend the front end of the hose structure (3) into the internal space of the cable trench (5); S4, then the pressure compensation control unit (4) generates optimal filling parameters according to the three-dimensional modeling data and the fluid diffusion simulation results of the cable trench (5), and dynamically adjusts the output pressure of the plurality of independent storage tank units according to the length of the hose to ensure the uniform coverage of the fire extinguishing agent in the cable trench (5); S5, the fire extinguishing agent in the plurality of independent storage tank units is delivered to the internal space of the cable trench (5) through the hose structure (3) to realize full-submersion fire extinguishing; S6, after the fire extinguishing operation is completed, the hose winding and unwinding mechanism (7) rewinds the hose structure (3) to the reel, and the fire extinguishing agent residual amount monitoring module checks the residual amount of the fire extinguishing agent in the independent storage tank unit, and sends an alarm signal if the residual amount is insufficient to remind the operator to supplement the fire extinguishing agent.

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