Fire extinguishing system with redundant fire extinguishing media, control method and control device of fire extinguishing system and media
By integrating the fire extinguishing tank, solenoid valve, and control host within the cabinet, and combining them with adaptive aiming nozzles and multi-dimensional detectors, the problem of insufficient redundancy in the fire extinguishing medium level of the fire extinguishing system is solved. This achieves efficient redundant supply and precise spraying of the fire extinguishing medium, improving the system's integration and response efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-03-31
AI Technical Summary
Existing fire extinguishing systems lack redundancy in the design of extinguishing media, resulting in the dispersed layout of fire extinguishing tanks, valves and control units, which occupy a large area, have complex pipeline laying and low system integration.
Design a fire extinguishing medium redundancy system. By integrating fire extinguishing tanks, solenoid valves and control host in an integrated cabinet, dynamic scheduling of fire extinguishing medium across tanks can be achieved. Combined with adaptive aiming nozzles and multi-dimensional detectors, redundant supply and precise spraying of fire extinguishing medium can be ensured.
It achieves redundant supply of fire extinguishing media, ensuring continuous combat capability against persistent fire sources and reignition scenarios, reducing floor space and pipeline complexity, and improving system integration and response efficiency.
Smart Images
Figure CN121754848A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fire extinguishing technology, and in particular to a fire extinguishing system with redundant extinguishing media, and its control method, control device and media. Background Technology
[0002] With the rapid development of modern industry and the acceleration of urbanization, the demand for fire safety protection in various high-risk locations such as petrochemical plants, underground substations, and museums is becoming increasingly urgent. However, traditional fire extinguishing systems generally adopt a single extinguishing medium supply path architecture, meaning that each protected area corresponds to only one independent extinguishing agent storage device and delivery pipeline network. To improve system reliability, mainstream international safety standards (such as ISO 14520 "Gaseous fire extinguishing systems—physical properties and system design" and NFPA 750 "Fine water mist fire extinguishing systems standard") and fire protection codes of various countries have clearly put forward redundancy design requirements for high-risk locations. That is, the system should have N+1 or higher redundancy capabilities to ensure that the fire extinguishing task can still be completed under extreme conditions of failure of a single subsystem.
[0003] Although existing technologies have recognized the importance of redundant design, current solutions still have the following shortcomings: First, most systems only implement hardware backup at the device level (such as dual control hosts and dual power supplies), without establishing a true redundancy mechanism at the extinguishing medium level. The extinguishing agent storage is still configured according to the theoretical design usage of a single area, without considering the need for multiple sprays in scenarios with continuous fire sources or reignition. Second, extinguishing tank groups, valves, and control hosts are usually distributed in different machine rooms or equipment rooms, resulting in a large footprint, complex pipeline laying, and low system integration.
[0004] Therefore, how to construct a system that can achieve redundancy in the extinguishing medium itself while also highly integrating the core components is a problem that needs to be solved by those skilled in the art. Summary of the Invention
[0005] The purpose of this application is to provide a fire extinguishing system with redundant fire extinguishing media, and its control method, control device and media, to solve the problems that most systems only implement hardware backup at the equipment level, without establishing a true redundancy mechanism at the fire extinguishing media level, and that fire extinguishing tank groups, valves and control hosts are usually scattered in different computer rooms or equipment rooms, resulting in large footprint, complex pipeline laying and low system integration.
[0006] To solve the above-mentioned technical problems, this application provides a fire extinguishing system with redundant fire extinguishing media, including: a cabinet, multiple sets of fire extinguishing components, normally closed solenoid valves and a control host;
[0007] The fire extinguishing assembly includes a fire extinguishing tank, a first solenoid valve, a one-way valve, a second solenoid valve, a nozzle, a detector, and a controller. The fire extinguishing tank is connected to the nozzle in sequence through the first solenoid valve, the one-way valve, and the second solenoid valve. One end of the normally closed solenoid valve is connected to the pipeline between the one-way valve and the second solenoid valve in one set of fire extinguishing assemblies, and the other end of the normally closed solenoid valve is connected to the pipeline between the one-way valve and the second solenoid valve in another set of fire extinguishing assemblies. The fire extinguishing tank, the first solenoid valve, the one-way valve, the second solenoid valve, the normally closed solenoid valve, and the control host are all located inside the cabinet. The nozzle, the detector, and the controller in the fire extinguishing assembly are all located outside the cabinet and are located in the corresponding fire extinguishing area. The control host is connected to the first solenoid valve, the one-way valve, the second solenoid valve, and the controller, respectively. The controller is connected to the detector.
[0008] Based on the above embodiments, as an optional embodiment, the detector includes any one or more of the following: a temperature detector, a smoke detector, a smoke-temperature composite detector, an infrared thermal imaging detector, and a thermopile temperature sensor array.
[0009] Based on the above embodiments, as an optional embodiment, the nozzle is an adaptive aiming nozzle, which includes a nozzle body, a nozzle, a composite rotation mechanism, and a drive control unit. The nozzle body has an internal fire extinguishing medium flow channel, and the nozzle is located at the end of the nozzle body. The nozzle is used to spray the fire extinguishing medium. The composite rotation mechanism includes a base, a support bracket, a horizontal drive motor, and a pitch drive motor. The base is installed at a preset position in the fire extinguishing area. The horizontal drive motor is fixed to the base, and its drive shaft is connected to the support bracket. The pitch drive motor is fixed to the support bracket, and its drive shaft is connected to the nozzle body. The horizontal drive motor drives the support bracket to rotate the nozzle body in a horizontal plane, and the pitch drive motor drives the nozzle body to pitch in a vertical plane. The drive control unit is electrically connected to the horizontal drive motor and the pitch drive motor, and communicatively connected to the controller. The fire extinguishing medium flow channel of the nozzle body is connected to the second solenoid valve through a flexible connecting pipe.
[0010] This application also provides a control method for a fire extinguishing system with redundant extinguishing media, applied to the aforementioned fire extinguishing system with redundant extinguishing media, comprising:
[0011] Acquire fire signals detected by detectors in each firefighting zone;
[0012] The target fire-fighting area where the fire occurred is determined based on the fire signal;
[0013] Open the first and second solenoid valves in the target fire extinguishing assembly corresponding to the target fire extinguishing area, so as to spray the fire extinguishing medium onto the target fire extinguishing area using the nozzles in the target fire extinguishing assembly;
[0014] Based on the fire signal of the target fire extinguishing area, the extinguishing medium in the fire extinguishing tanks of other fire extinguishing areas (excluding the target fire extinguishing area) is transferred to the target fire extinguishing area.
[0015] Based on the above embodiments, as an optional embodiment, according to the fire signal of the target fire extinguishing area, calling the extinguishing medium from the fire extinguishing tanks of other fire extinguishing areas besides the target fire extinguishing area to the target fire extinguishing area includes:
[0016] If the extinguishing medium in the target extinguishing container of the target extinguishing assembly is completely released, and the fire signal in the target extinguishing area indicates that the fire is not extinguished;
[0017] According to the preset spatial order, the extinguishing medium in the fire extinguishing tanks of the other fire extinguishing areas except the target fire extinguishing area is called to the target fire extinguishing area in turn until the fire in the target fire extinguishing area is extinguished or the extinguishing medium in all fire extinguishing tanks is exhausted.
[0018] The preset spatial order is either starting from the target fire extinguishing area number, proceeding first along the decreasing direction of the number and then along the increasing direction of the number, or starting from the target fire extinguishing area number, proceeding first along the increasing direction of the number and then along the decreasing direction of the number.
[0019] Based on the above embodiments, as an optional embodiment, if the detector includes a smoke-temperature composite detector, and the fire signal includes temperature data and smoke concentration, the method of calling extinguishing media from fire extinguishing tanks in other fire extinguishing areas (excluding the target fire extinguishing area) to the target fire extinguishing area according to the fire signal of the target fire extinguishing area includes:
[0020] The temperature rise rate and maximum temperature are determined based on the temperature data, and the fire intensity level is determined based on the maximum temperature, the temperature rise rate, and the smoke concentration.
[0021] Determine the required number of fire extinguishers based on the fire intensity level;
[0022] While spraying the extinguishing medium from the target extinguishing tank in the target extinguishing assembly, the extinguishing medium from the extinguishing tanks in other extinguishing areas besides the target extinguishing area is called to the target extinguishing area according to the number of extinguishing tanks.
[0023] Based on the above embodiments, as an optional embodiment, determining the fire intensity level according to the highest temperature, the temperature rise rate, and the smoke concentration includes:
[0024] Based on the scene where the target fire extinguishing area is located, values are assigned to the first weighting coefficient corresponding to the highest temperature, the second weighting coefficient corresponding to the temperature rise rate, and the third weighting coefficient corresponding to the smoke concentration.
[0025] The fire intensity level is calculated based on the highest temperature, the rate of temperature rise, the smoke concentration, and the assigned first, second, and third weighting coefficients.
[0026] Based on the above embodiments, as an optional embodiment, if the detector includes a thermopile temperature sensor array and the nozzle is an adaptive aiming nozzle, the fire extinguishing medium is sprayed onto the target fire extinguishing area using the nozzle in the target fire extinguishing assembly, including:
[0027] Acquire the thermal image generated by the thermopile temperature sensor array;
[0028] Determine the location information of the fire source core in the thermal image;
[0029] The horizontal drive motor and the pitch drive motor of the adaptive aiming nozzle are driven according to the position information, so that the spray axis of the adaptive aiming nozzle is aligned with the core of the fire source, so as to spray the fire extinguishing medium onto the target fire extinguishing area.
[0030] This application also provides a control device for a fire extinguishing system with redundant fire extinguishing media, including a memory for storing computer programs;
[0031] A processor is used to execute the computer program to implement the steps of the control method for the fire extinguishing system with redundant fire extinguishing media.
[0032] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the control method for the fire extinguishing system with redundant fire extinguishing media.
[0033] This application provides a fire extinguishing system with redundant extinguishing media, comprising: a cabinet, multiple sets of fire extinguishing components, normally closed solenoid valves, and a control host; the fire extinguishing components include a fire extinguishing tank, a first solenoid valve, a check valve, a second solenoid valve, a nozzle, a detector, and a controller. The fire extinguishing tank is connected to the nozzle in sequence through the first solenoid valve, the check valve, and the second solenoid valve. One end of the normally closed solenoid valve is connected to the pipeline between the check valve and the second solenoid valve in one set of fire extinguishing components, and the other end of the normally closed solenoid valve is connected to the pipeline between the check valve and the second solenoid valve in another set of fire extinguishing components. The fire extinguishing tank, the first solenoid valve, the check valve, the second solenoid valve, the normally closed solenoid valve, and the control host are all located inside the cabinet. The nozzles, detectors, and controllers in the fire extinguishing components are all located outside the cabinet and in the corresponding fire extinguishing areas. The control host is connected to the first solenoid valve, the check valve, the second solenoid valve, and the controller, and the controller is connected to the detector. The system is equipped with multiple fire extinguishing components, which are connected to different component pipelines through normally closed solenoid valves to build a dynamic scheduling path across tanks. When the fire extinguishing medium in a fire extinguishing tank is exhausted, the control host can open the normally closed solenoid valve to call up the fire extinguishing medium in the remaining fire extinguishing tanks, realizing redundancy of the fire extinguishing medium itself and maintaining continuous combat capability in the event of a persistent fire source and reignition. The core components (fire extinguishing tank, first solenoid valve, second solenoid valve, check valve, normally closed solenoid valve, control host) are all integrated into a single cabinet, with only the nozzles, detectors and controllers exposed to the outside. This highly integrated approach to the core components eliminates the need for complex cross-area pipelines, reducing the footprint and pipeline laying complexity.
[0034] The beneficial effects of the control method, control device, and media of the fire extinguishing system with redundant fire extinguishing media provided in this application correspond to the fire extinguishing system, as described above. Attached Figure Description
[0035] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 A structural diagram of a fire extinguishing system with redundant extinguishing media provided in an embodiment of this application;
[0037] Figure 2 A flowchart illustrating a control method for a fire extinguishing system with redundant extinguishing media, provided as an embodiment of this application;
[0038] Figure 3 A structural diagram of another fire extinguishing system with redundant extinguishing media provided in this application embodiment;
[0039] Figure 4This is a structural diagram of a control device for a fire extinguishing system with redundant extinguishing media, provided in an embodiment of this application.
[0040] The attached diagram is labeled as follows: 1-cabinet, 2-normally closed solenoid valve, 3-control host, 4-fire extinguisher, 5-first solenoid valve, 6-one-way valve, 7-second solenoid valve, 8-nozzle, 9-detector, 10-controller. Detailed Implementation
[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0042] The core of this application is to provide a fire extinguishing system with redundant fire extinguishing media, as well as its control method, control device and media, for constructing a system that can achieve redundancy of the fire extinguishing media itself and highly integrate the core components.
[0043] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0044] Figure 1 A structural diagram of a fire extinguishing system with redundant extinguishing media provided in this application embodiment is shown below. Figure 1 As shown, a fire extinguishing system with redundant extinguishing media includes: a cabinet 1, multiple sets of fire extinguishing components, normally closed solenoid valves 2, and a control host 3; the fire extinguishing components include a fire extinguishing tank 4, a first solenoid valve 5, a one-way valve 6, a second solenoid valve 7, a nozzle 8, a detector 9, and a controller 10. The fire extinguishing tank 4 is connected to the nozzle 8 in sequence through the first solenoid valve 5, the one-way valve 6, and the second solenoid valve 7. One end of the normally closed solenoid valve 2 is connected to the pipeline between the one-way valve 6 and the second solenoid valve 7 in one set of fire extinguishing components, and the other end of the normally closed solenoid valve 2 is connected to the pipeline between the one-way valve 6 and the second solenoid valve 7 in another set of fire extinguishing components. The fire extinguishing tank 4, the first solenoid valve 5, the one-way valve 6, the second solenoid valve 7, the normally closed solenoid valve 2, and the control host 3 are all located inside the cabinet 1. The nozzles 8, the detectors 9, and the controller 10 in the fire extinguishing components are all located outside the cabinet 1 and are set in the corresponding fire extinguishing areas. The control host 3 is connected to the first solenoid valve 5, the one-way valve 6, the second solenoid valve 7, and the controller 10 respectively. The controller 10 is connected to the detector 9.
[0045] Cabinet 1 serves as the system carrier, integrating core components such as fire extinguishing tank 4, valve group, and control host 3 into a single enclosed space. This achieves modular and integrated design, solving the problems of large footprint, complex installation, and difficult maintenance caused by the dispersed layout of storage tanks, valves, and host in traditional fire extinguishing systems. At the same time, cabinet 1 provides physical protection and extends the service life of core components.
[0046] Each fire extinguishing assembly includes a fire extinguishing tank 4, a first solenoid valve 5, a one-way valve 6, a second solenoid valve 7, a nozzle 8, a detector 9, and a controller 10. The fire extinguishing tank 4, the first solenoid valve 5, the one-way valve 6, and the second solenoid valve 7 are located inside the cabinet 1, while the nozzle 8, the detector 9, and the controller 10 are located outside the cabinet 1. Each fire extinguishing zone is equipped with a nozzle 8, a detector 9, and a controller 10. Fire extinguishing tank 4 serves as a storage unit for the extinguishing medium; the first solenoid valve 5 is connected in series at the outlet of fire extinguishing tank 4, directly controlling the release action of fire extinguishing tank 4; the one-way valve 6 is connected in series in the pipeline between the first solenoid valve 5 and the second solenoid valve 7, used to prevent the backflow of the extinguishing medium. When the system uses multiple fire extinguishing tanks 4 to extinguish fires in the same area, it can prevent high-pressure medium from flowing back into the emptied fire extinguishing tank 4, avoiding pressure loss caused by the backflow of the extinguishing medium. It is a necessary isolation component for realizing the coordinated operation of multiple tanks; the second solenoid valve 7 is located downstream of the one-way valve 6 and connected to the nozzle 8, controlling the release of the extinguishing medium to a specific area. In cross-area redundant scheduling, it cooperates with the normally closed solenoid valve 2 to open and establish a temporary passage.
[0047] This application embodiment does not specifically limit the structure of the nozzle 8. Specifically, the nozzle 8 is an adaptive aiming nozzle, which includes a nozzle body, a nozzle, a composite rotation mechanism, and a drive control unit. The nozzle body has a fire extinguishing medium flow channel inside, and a nozzle is provided at the end of the nozzle body. The nozzle is used to spray the fire extinguishing medium. The composite rotation mechanism includes a base, a support bracket, a horizontal drive motor, and a pitch drive motor. The base is installed at a preset position in the fire extinguishing area. The horizontal drive motor is fixed to the base, and the drive shaft of the horizontal drive motor is connected to the support bracket. The pitch drive motor is fixed to the support bracket, and the drive shaft of the pitch drive motor is connected to the nozzle body. The horizontal drive motor is used to drive the support bracket to rotate the nozzle body in the horizontal plane, and the pitch drive motor is used to drive the nozzle body to pitch in the vertical plane. The drive control unit is electrically connected to the horizontal drive motor and the pitch drive motor respectively, and is communicatively connected to the controller 10. The fire extinguishing medium flow channel of the nozzle body is connected to the second solenoid valve 7 through a flexible connecting pipe. Horizontal rotation refers to the rotational motion of an object around a rotation axis perpendicular to the horizontal plane within a horizontal plane; vertical pitch motion refers to the up-and-down swinging motion of an object around a horizontal rotation axis within a vertical plane. The internal flow channel of the nozzle body is used to transport the extinguishing medium, and the terminal nozzle completes the final atomization or spraying. The flexible connecting pipe can be a high-pressure hose to ensure the sealing and continuity of the medium passage during nozzle movement. The horizontal drive motor drives the support bracket to rotate within a 0-360° horizontal plane for circumferential positioning, while the pitch drive motor drives the nozzle body to pitch within a ±90° vertical plane for height positioning. This application, through horizontal and pitch dual-axis linkage, can precisely aim the extinguishing medium at the center of the fire source, achieving point-to-point precision strike and reducing medium waste.
[0048] Detector 9 is installed in the fire suppression area. Its type and quantity are not fixed. It includes any one or several of the following: heat detector, smoke detector, smoke-temperature composite detector, infrared thermal imaging detector, thermopile temperature sensor array. It provides multi-dimensional fire characteristic data collection. By integrating multiple information such as temperature, smoke, and temperature rise rate, it improves the accuracy of fire alarm judgment, reduces the risk of false alarms and missed alarms, and provides a data foundation for subsequent graded response.
[0049] The controller 10 receives signals from the detector 9 in this area and uploads them to the control host 3. It can perform pre-processing, localize tasks such as signal filtering and threshold judgment, reduce the computational load of the control host 3, and improve the real-time performance and reliability of the system. At the same time, it can perform local linkage control and has the ability to work independently when communication is interrupted.
[0050] Normally closed solenoid valve 2 is connected to two adjacent fire extinguishing components. In case of fire, it is energized and opened according to the control command to connect the branches of the adjacent fire extinguishing tanks 4, so as to realize the dynamic sharing and targeted reinforcement of fire extinguishing medium between areas. Normally, it is kept closed to ensure independent protection of each area, avoid pipeline crosstalk and medium mixing, and take into account both system independence and redundancy expansion.
[0051] The control host 3 serves as the central decision-making unit of the system, connecting all solenoid valves and controllers 10, and executing redundant logic. The controllers 10 can be connected to the control host 3 via Ethernet. The specific control method will be described in the embodiments of the method.
[0052] The fire extinguishing system with redundant extinguishing media provided in this application includes: a cabinet 1, multiple sets of fire extinguishing components, normally closed solenoid valves 2, and a control host 3; the fire extinguishing components include a fire extinguishing tank 4, a first solenoid valve 5, a one-way valve 6, a second solenoid valve 7, a nozzle 8, a detector 9, and a controller 10. The fire extinguishing tank 4 is connected to the nozzle 8 in sequence through the first solenoid valve 5, the one-way valve 6, and the second solenoid valve 7. One end of the normally closed solenoid valve 2 is connected to the pipeline between the one-way valve 6 and the second solenoid valve 7 in one set of fire extinguishing components, and the other end of the normally closed solenoid valve 2 is connected to the pipeline between the one-way valve 6 and the second solenoid valve 7 in another set of fire extinguishing components. The fire extinguishing tank 4, the first solenoid valve 5, the one-way valve 6, the second solenoid valve 7, the normally closed solenoid valve 2, and the control host 3 are all located inside the cabinet 1. The nozzles 8, the detectors 9, and the controller 10 in the fire extinguishing components are all located outside the cabinet 1 and are set in the corresponding fire extinguishing areas. The control host 3 is connected to the first solenoid valve 5, the one-way valve 6, the second solenoid valve 7, and the controller 10 respectively. The controller 10 is connected to the detector 9. The system is configured with multiple fire extinguishing components, which are connected to different component pipelines through normally closed solenoid valves 2 to build a dynamic scheduling path across tanks. When the fire extinguishing medium in a certain fire extinguishing tank 4 is exhausted, the control host 3 can open the normally closed solenoid valve 2 to call up the fire extinguishing medium in the other fire extinguishing tanks 4, realizing the redundancy of the fire extinguishing medium itself and maintaining the continuous combat capability in the case of continuous fire source and reignition scenario. The core components (fire extinguishing tank 4, first solenoid valve 5, second solenoid valve 7, check valve 6, normally closed solenoid valve 2, control host 3) are all integrated into a single cabinet 1, and only the nozzles 8, detectors 9 and controllers 10 are retained externally. The high integration of core components eliminates the need for complex cross-area pipelines, which can reduce the footprint and reduce the complexity of pipeline laying.
[0053] Figure 2 A flowchart illustrating a control method for a fire extinguishing system with redundant extinguishing media, as provided in this application embodiment, is shown below. Figure 2 As shown, a control method for a fire extinguishing system with redundant extinguishing media is applied to the aforementioned fire extinguishing system with redundant extinguishing media, comprising:
[0054] S10: Acquire fire signals detected by detectors in each fire-fighting zone.
[0055] S11: Determine the target fire extinguishing area based on the fire signal.
[0056] S12: Open the first and second solenoid valves in the target fire extinguishing assembly corresponding to the target fire extinguishing area, so as to spray the fire extinguishing medium onto the target fire extinguishing area using the nozzles in the target fire extinguishing assembly.
[0057] S13: Based on the fire signal of the target fire extinguishing area, call the extinguishing medium in the fire extinguishing tanks of other fire extinguishing areas other than the target fire extinguishing area to the target fire extinguishing area.
[0058] In step S10, the control host receives fire signals detected by detectors from each fire zone controller in real time. The fire signals may include temperature data, smoke data, and thermal imaging images.
[0059] In step S11, each fire extinguishing zone is equipped with an independent detector, and the detector number is bound to the fire extinguishing zone number. If the fire signal detected by the detector in a certain fire extinguishing zone exceeds the preset threshold, the area to which the detector belongs can be determined as the target fire extinguishing zone.
[0060] In step S12, the fire extinguishing zone number is bound to the fire extinguishing component number. Once the target fire extinguishing zone is determined, the target fire extinguishing component corresponding to the target fire extinguishing zone can be located. The first solenoid valve and the second solenoid valve in the target fire extinguishing component are opened so that the nozzle in the target fire extinguishing component can spray the fire extinguishing medium onto the target fire extinguishing zone.
[0061] In step S13, after the extinguishing medium in the target extinguishing tank of the target extinguishing assembly has been released, and the fire signal of the target extinguishing area indicates that the fire is not extinguished, or if it is determined from the fire signal that the extinguishing medium in the extinguishing tank corresponding to the target extinguishing area is insufficient to extinguish the fire, the extinguishing medium in the extinguishing tanks of other extinguishing areas other than the target extinguishing area is called to the target extinguishing area; specifically, the normally closed solenoid valve between the other extinguishing assemblies and the target extinguishing assembly is opened to deliver the extinguishing medium in the extinguishing tanks of the other extinguishing assemblies to the target nozzle of the target extinguishing assembly, so that it can be sprayed out through the target nozzle.
[0062] Regarding how to call extinguishing media from the fire extinguishing tanks of other fire extinguishing areas to the target fire extinguishing area based on the fire signal of the target fire extinguishing area, Method 1: If the extinguishing media in the target fire extinguishing tank of the target fire extinguishing assembly has been released and the fire signal of the target fire extinguishing area indicates that the fire is not extinguished; according to the preset spatial order, call the extinguishing media from the fire extinguishing tanks of other fire extinguishing areas to the target fire extinguishing area in sequence until the fire in the target fire extinguishing area is extinguished or the extinguishing media in all fire extinguishing tanks is exhausted; wherein, the preset spatial order is to start from the target fire extinguishing area number, first along the decreasing direction of the number and then along the increasing direction of the number, or, starting from the target fire extinguishing area number, first along the increasing direction of the number and then along the decreasing direction of the number.
[0063] To make it easier to understand, the following example is provided. Figure 3 A structural diagram of another fire extinguishing system with redundant extinguishing media provided in this application embodiment is shown below. Figure 3 As shown, the fire extinguishing area Taking a fire as an example, the area where the fire occurred should be extinguished. The fire zone with the highest number a=13 is designated as the largest fire extinguishing zone. Number b=14, open the solenoid valve. and solenoid valve When the fire extinguisher After the release is complete, determine the fire extinguishing area. Has the fire been extinguished? If so, the process ends; if the fire is still burning in the affected area... If the fire is not extinguished, check if 'a' equals 1. If 'a' equals 3, assign 'a' - 1. If 'a' equals 2, then open... Then open the solenoid valve. Then fire extinguisher Release extinguishing agent when the fire extinguishing canister After the release is complete, determine the fire extinguishing area. Has the fire been extinguished? If so, end the process; if not, assign the value a-1 to 'a', at which point a=1, and open the window. Open again Then fire extinguisher Release extinguishing agent when the fire extinguishing canister After the release is complete, check if fire zone 3 is extinguished. If it is, the process ends. If not, check if 'a' equals 1. If so, 'a' = 1, and the initial value of 'a' is restored to 3. Check if 'a' equals 'b'. If 'a' = 3, and 'b' = 3, then 'a' is assigned the value a + 1, making 'a' = 4, and the process is opened. Open again Then fire extinguisher Release extinguishing agent when the fire extinguishing canister After the release is complete, determine the fire extinguishing area. If the fire has been extinguished, the process ends; otherwise, it returns to checking if a equals b. If a = 4 and equals b, an alarm message is generated.
[0064] Regarding how to call extinguishing media from extinguishing tanks in other extinguishing zones (excluding the target extinguishing zone) to the target extinguishing zone based on the fire signal, Method Two is as follows: If the detector includes a smoke-temperature composite detector, the fire signal includes temperature data and smoke concentration; determine the temperature rise rate and maximum temperature based on the temperature data, and determine the fire intensity level based on the maximum temperature, temperature rise rate, and smoke concentration; determine the required number of extinguishing tanks based on the fire intensity level; while spraying the extinguishing media from the target extinguishing tank in the target extinguishing assembly, call extinguishing media from extinguishing tanks in other extinguishing zones (excluding the target extinguishing zone) to the target extinguishing zone based on the number of extinguishing tanks. Further, determining the fire intensity level based on the maximum temperature, temperature rise rate, and smoke concentration includes: assigning values to the first weighting coefficient corresponding to the maximum temperature, the second weighting coefficient corresponding to the temperature rise rate, and the third weighting coefficient corresponding to the smoke concentration, based on the scene where the target extinguishing zone is located; calculating the fire intensity level based on the maximum temperature, temperature rise rate, smoke concentration, and the assigned first, second, and third weighting coefficients.
[0065] To make it easier to understand, the following example is provided. For example... Figure 1 As shown, the control host can assess the fire intensity of the target fire area based on the fire signals transmitted by the detectors in the fire-fighting zone. Taking fire-fighting zone A as an example, the detectors detect temperature data and smoke concentration, and the control host analyzes the highest temperature... Temperature rise rate flue gas concentration The weighting coefficients of these three data points are determined according to the application scenario. , , ( For example, in areas with high levels of smoke pollution, such as diesel engine rooms, appropriately reduce... The value, and increasing and The value; or, in high-temperature working areas, appropriately reduce the value. The value increases and The value. Taking the diesel engine room as an example, assign the first weighting coefficient. Second weighting coefficient Third weighting coefficient ,according to The calculated values are categorized into three fire levels, from lowest to highest: Level 1, Level 2, and Level 3. A Level 1 fire is extinguished by activating one fire extinguisher in fire extinguishing zone A; a Level 2 fire is extinguished by activating two fire extinguishers in fire extinguishing zone A and the adjacent fire extinguishing zone B; and a Level 3 fire is extinguished by activating three fire extinguishers in fire extinguishing zones A, B, and C.
[0066] Based on the above embodiments, if the detector in this application includes a thermopile temperature sensor array and the nozzle is an adaptive aiming nozzle, the method of spraying extinguishing medium onto the target extinguishing area using the nozzle in the target extinguishing assembly includes: acquiring a thermal image generated by the thermopile temperature sensor array; determining the location information of the fire source core in the thermal image; and driving the horizontal drive motor and the pitch drive motor of the adaptive aiming nozzle according to the location information, so that the spray axis of the adaptive aiming nozzle is aligned with the fire source core, so as to spray extinguishing medium onto the target extinguishing area.
[0067] Regarding how to determine the location information of the fire source core in the thermal imaging image, it can be done by extracting the high-temperature area in the thermal imaging image through temperature threshold segmentation, calculating the temperature gradient or centroid to lock the most intense point of the fire source (the fire source core), converting the coordinates of the fire source core to the azimuth and elevation angles in the spherical coordinate system (for use by the nozzle drive), adjusting the azimuth angle with the horizontal motor, and adjusting the elevation / depression angle with the elevation motor to achieve the collinearity of the spray direction with the fire source core, ensuring that the extinguishing medium directly hits the fire source core rather than being sprayed blindly.
[0068] This application provides a control method for a fire extinguishing system with redundant extinguishing media, comprising: acquiring fire signals detected by detectors in each fire extinguishing zone; determining the target fire extinguishing zone based on the fire signals; opening the first and second solenoid valves in the target fire extinguishing assembly corresponding to the target fire extinguishing zone, so as to spray extinguishing media onto the target fire extinguishing zone using nozzles in the target fire extinguishing assembly; and calling extinguishing media from the extinguishing tanks of other fire extinguishing zones (excluding the target fire extinguishing zone) to the target fire extinguishing zone based on the fire signals of the target fire extinguishing zone. This allows for the calling of extinguishing media from other extinguishing tanks based on fire signals, achieving redundancy of the extinguishing media itself and maintaining continuous operational capability against persistent fire sources and reignition scenarios.
[0069] Figure 4 A structural diagram of a control device for a fire extinguishing system with redundant extinguishing media, provided in an embodiment of this application, is shown below. Figure 4 As shown, the control device for a fire extinguishing system with redundant extinguishing media includes: a memory 20 for storing a computer program; and a processor 21 for executing the computer program to implement the steps of the control method for the fire extinguishing system with redundant extinguishing media as described in the above embodiment.
[0070] The control device for the fire extinguishing system with redundant fire extinguishing media provided in this embodiment may include, but is not limited to, smartphones, tablets, laptops, or desktop computers.
[0071] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which handles computational operations related to machine learning.
[0072] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the control method for the fire extinguishing medium redundancy system disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc. The data 203 may include, but is not limited to, fire signals.
[0073] In some embodiments, the control device of a fire extinguishing system with redundant extinguishing media may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
[0074] Those skilled in the art will understand that Figure 4The structure shown does not constitute a limitation on the control device of a fire extinguishing system with redundant extinguishing media, and may include more or fewer components than shown.
[0075] The control device for a fire extinguishing system with redundant fire extinguishing media provided in this application includes a memory and a processor. When the processor executes the program stored in the memory, it can perform the following methods: acquire fire signals detected by detectors in each fire extinguishing zone; determine the target fire extinguishing zone where the fire has occurred based on the fire signals; open the first and second solenoid valves in the target fire extinguishing assembly corresponding to the target fire extinguishing zone, so as to spray fire extinguishing media onto the target fire extinguishing zone using the nozzles in the target fire extinguishing assembly; and call the fire extinguishing media in the fire extinguishing tanks of other fire extinguishing zones other than the target fire extinguishing zone to the target fire extinguishing zone based on the fire signal of the target fire extinguishing zone.
[0076] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the control method of the fire extinguishing medium redundancy system as described in the above method embodiment.
[0077] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0078] The fire extinguishing system with redundant fire extinguishing media, its control method, control device, and media provided in this application have been described in detail above. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
[0079] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A fire extinguishing system with redundancy of fire extinguishing medium, characterized in that It comprises: a cabinet body (1), a plurality of fire extinguishing assemblies, a normally closed electromagnetic valve (2) and a control host (3); The fire extinguishing assembly comprises a fire extinguishing tank (4), a first electromagnetic valve (5), a check valve (6), a second electromagnetic valve (7), a spray head (8), a detector (9) and a controller (10), the fire extinguishing tank (4) is connected with the spray head (8) through the first electromagnetic valve (5), the check valve (6) and the second electromagnetic valve (7) in sequence, one end of the normally closed electromagnetic valve (2) is connected to the pipeline between the check valve (6) and the second electromagnetic valve (7) in a group of fire extinguishing assemblies, the other end of the normally closed electromagnetic valve (2) is connected to the pipeline between the check valve (6) and the second electromagnetic valve (7) in another group of fire extinguishing assemblies, the fire extinguishing tank (4), the first electromagnetic valve (5), the check valve (6), the second electromagnetic valve (7), the normally closed electromagnetic valve (2) and the control host (3) are located in the cabinet body (1), the spray head (8), the detector (9) and the controller (10) in the fire extinguishing assembly are located outside the cabinet body (1) and are arranged in the corresponding fire extinguishing area, the control host (3) is connected with the first electromagnetic valve (5), the check valve (6), the second electromagnetic valve (7) and the controller (10) respectively, and the controller (10) is connected with the detector (9).
2. A fire extinguishing system with redundancy of fire extinguishing medium according to claim 1, characterized in that, The detector (9) comprises any one or any combination of a temperature sensing detector, a smoke sensing detector, a smoke-temperature composite detector, an infrared thermal imaging detector and a thermocouple temperature sensor array.
3. A fire extinguishing system with redundancy of fire extinguishing medium according to claim 1, characterized in that, The spray head (8) is a self-adaptive aiming spray head, which comprises a spray head body, a nozzle, a composite rotating mechanism and a driving control unit, a fire extinguishing medium flow channel is formed in the spray head body, the nozzle is arranged at the tail end of the spray head body and used for spraying fire extinguishing medium, the composite rotating mechanism comprises a base, a bearing support, a horizontal driving motor and a pitching driving motor, the base is installed at a preset position of a fire extinguishing area, the horizontal driving motor is fixed to the base, a transmission shaft of the horizontal driving motor is connected with the bearing support, the pitching driving motor is fixed to the bearing support, a transmission shaft of the pitching driving motor is connected with the spray head body, the horizontal driving motor is used for driving the bearing support to drive the spray head body to rotate in a horizontal plane, the pitching driving motor is used for driving the spray head body to pitch in a vertical plane, the driving control unit is electrically connected with the horizontal driving motor and the pitching driving motor respectively and is in communication connection with the controller (10), and the fire extinguishing medium flow channel of the spray head body is in communication with the second electromagnetic valve (7) through a flexible connecting pipe.
4. A control method of a fire extinguishing system with redundancy of fire extinguishing medium, characterized in that, The fire extinguishing system with fire extinguishing medium redundancy is applied to the fire extinguishing system of any one of claims 1 to 3, comprising: acquiring a fire signal detected by the detector (9) of each fire extinguishing area; determining a target fire extinguishing area where a fire occurs according to the fire signal; Open the first electromagnetic valve (5) and the second electromagnetic valve (7) in the target fire extinguishing assembly corresponding to the target fire extinguishing area, so as to spray the extinguishing medium to the target fire extinguishing area by using the spray head (8) in the target fire extinguishing assembly; According to the fire signal of the target fire extinguishing area, the extinguishing medium in the fire extinguishing tank (4) of the remaining fire extinguishing areas except the target fire extinguishing area is called to the target fire extinguishing area.
5. The control method of a fire extinguishing system with redundancy of fire extinguishing medium according to claim 4, characterized in that, According to the fire signal of the target fire extinguishing area, the extinguishing medium in the fire extinguishing tank (4) of the remaining fire extinguishing areas except the target fire extinguishing area is called to the target fire extinguishing area, comprising: If the extinguishing medium of the target fire extinguishing tank in the target fire extinguishing assembly is exhausted, and the fire signal of the target fire extinguishing area indicates that the fire is not extinguished; According to the preset spatial order, the extinguishing medium in the fire extinguishing tank (4) of the remaining fire extinguishing areas except the target fire extinguishing area is called to the target fire extinguishing area in turn until the fire signal of the target fire extinguishing area is extinguished or the extinguishing medium of all fire extinguishing tanks (4) is exhausted; Wherein, the preset spatial order is to take the target fire extinguishing area number as the starting point, first in the decreasing direction of the number and then in the increasing direction of the number, or to take the target fire extinguishing area number as the starting point, first in the increasing direction of the number and then in the decreasing direction of the number.
6. The control method of a fire extinguishing system with redundancy of fire extinguishing medium according to claim 4, characterized in that, If the detector (9) includes a smoke temperature composite detector, the fire signal includes temperature data and smoke concentration, and according to the fire signal of the target fire extinguishing area, the extinguishing medium in the fire extinguishing tank (4) of the remaining fire extinguishing areas except the target fire extinguishing area is called to the target fire extinguishing area, comprising: According to the temperature data, the temperature rise rate and the highest temperature are determined, and according to the highest temperature, the temperature rise rate and the smoke concentration, the fire grade is determined; According to the fire grade, the required number of fire extinguishing tanks is determined; While spraying the extinguishing medium in the target fire extinguishing tank of the target fire extinguishing assembly, according to the number of fire extinguishing tanks, the extinguishing medium in the fire extinguishing tank (4) of the remaining fire extinguishing areas except the target fire extinguishing area is called to the target fire extinguishing area.
7. The control method of a fire extinguishing system with redundancy of fire extinguishing medium according to claim 6, characterized in that, According to the highest temperature, the temperature rise rate and the smoke concentration, the fire grade is determined, comprising: According to the scene where the target fire extinguishing area is located, the first weight coefficient corresponding to the highest temperature, the second weight coefficient corresponding to the temperature rise rate and the third weight coefficient corresponding to the smoke concentration are respectively valued; According to the highest temperature, the temperature rise rate, the smoke concentration and the first weight coefficient, the second weight coefficient and the third weight coefficient after valuation, the fire grade is calculated.
8. The control method of a fire extinguishing system with redundancy of fire extinguishing medium according to claim 4, characterized in that, If the detector (9) includes a thermoelectric pile temperature sensor array, and the spray head (8) is a self-adaptive aiming spray head, the spray head (8) in the target fire extinguishing assembly is used to spray the extinguishing medium to the target fire extinguishing area, comprising: Obtain the thermal imaging map generated by the thermoelectric pile temperature sensor array; Determine the position information of the fire source core in the thermal imaging map; According to the position information, the horizontal drive motor and the pitch drive motor of the self-adaptive aiming spray head are driven, so that the spray axis of the self-adaptive aiming spray head is aligned with the fire source core, so as to spray the extinguishing medium to the target fire extinguishing area.
9. A control device for a fire extinguishing system with redundancy of fire extinguishing medium, characterized in that a memory for storing a computer program; a processor for implementing the steps of the control method of the redundant fire extinguishing system of fire extinguishing medium according to any one of claims 4 to 8 when executing the computer program.
10. A computer-readable storage medium, characterized in that, a computer program is stored on the computer readable storage medium, and the computer program is executed by the processor to implement the steps of the control method of the redundant fire extinguishing system of fire extinguishing medium according to any one of claims 4 to 8.