A super high-rise building curtain wall fire scene fixed-point water mist precise fire extinguishing system

Abstract

The application discloses a kind of super high-rise building curtain wall fire condition fixed-point water mist precision fire extinguishing system, using the double fire condition identification mechanism of "temperature anomaly pre-determination+AI video secondary verification", completely abandon the determination logic of traditional single sensor, the non-fire condition misoperation rate of system is reduced to 0.05% from the industry conventional 8% or more, completely avoid the mis-spray accident under the state of non-fire condition, substantially reduce the property loss risk caused by system misoperation.The application discloses a kind of super high-rise building curtain wall fire condition fixed-point water mist precision fire extinguishing system, using the double fire condition identification mechanism of "temperature anomaly pre-determination+AI video secondary verification", completely abandon the determination logic of traditional single sensor, the non-fire condition misoperation rate of system is reduced to 0.05% from the industry conventional 8% or more, completely avoid the mis-spray accident under the state of non-fire condition, substantially reduce the property loss risk caused by system misoperation.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology for super high-rise buildings, and in particular to a precise fine water mist fire extinguishing system for curtain wall fires in super high-rise buildings. Background Technology

[0002] As super high-rise buildings become increasingly tall and massive, their architectural forms, structures, functions, and materials are diversifying. Many of these buildings utilize glass curtain walls as their exterior cladding. These curtain wall structures typically feature enclosed cavities, strong vertical continuity, and significant wind load influence on the facade. In the event of a fire, a "chimney effect" can easily form within the curtain wall cavities, causing the fire to spread rapidly vertically, making traditional firefighting methods ineffective. Current firefighting equipment for super high-rise building fires mainly consists of fire ladder trucks and indoor fire hydrants.

[0003] Chinese patent application CN202511073145.9 discloses a fire-stopping system for interlayer curtain walls in ultra-high-rise buildings. The system includes a building structure and a toothed, grooved embedded part pre-embedded within the building structure. The bottom of the toothed embedded part is fixedly fitted with an aluminum alloy bracket for positioning the steel keel. It also includes a horizontal beam in an aluminum alloy unit, fixedly installed on one side of the curtain wall structure and fixedly attached to it. A thermal insulation rock wool board is fixedly installed on the top of the horizontal beam. A first sealing mechanism is fixedly installed on one side of the steel keel, and a second sealing mechanism is installed at the end of the steel keel. The first and second sealing mechanisms are used to seal the interlayer gaps in the curtain wall. This invention solves the problems of the significant hazards and inability to maintain long-term stable fireproof and heat-insulating performance of fire-stopping materials for interlayer curtain walls in ultra-high-rise buildings. It also addresses the difficulties in construction and the poor fireproofing effect of fire-stopping for interlayer curtain walls in ultra-high-rise buildings.

[0004] However, existing fire-stopping systems still have some shortcomings. They achieve fire insulation between curtain wall layers through channel-type embedded parts, aluminum alloy brackets and multi-layer sealing mechanisms. They can only passively slow down the spread of fire and cannot actively extinguish fires that have already occurred. They belong to the category of passive fire prevention technology and do not have any active fire extinguishing capabilities. Summary of the Invention

[0005] To address the aforementioned shortcomings in existing technologies, this invention provides a precise fine water mist fire extinguishing system for ultra-high-rise building curtain wall fires. The purpose of this system is to solve problems such as insufficient fire source location accuracy, high false alarm rate, crude extinguishing agent application, and poor water supply system reliability in ultra-high-rise building curtain wall fire extinguishing technologies.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: a precise fire extinguishing system for curtain wall fires in ultra-high-rise buildings, comprising a field sensing layer on each floor, a regional control layer at the vertical center of the building, and a central management layer in the fire control room, which completes full-link data transmission by relying on an independent fiber optic ring network.

[0007] The central monitoring center connects to floor data integrators deployed every two floors along the building's vertical direction via an independent fiber optic ring network. Each data integrator connects to four types of field sensing devices: distributed temperature-sensing fiber optic nodes deployed along the inner cavity of the curtain wall, photoelectric composite smoke sensors, binocular AI video monitors, and combustible gas micro-concentration detectors, enabling multi-dimensional real-time monitoring of fire conditions in the concealed spaces of the curtain wall. The output of the central monitoring center is connected to the variable frequency water supply pump and the global fire linkage controller, which serves as the regional control core and simultaneously manages the dedicated smoke exhaust fans for the curtain wall cavity, embedded audible and visual early warning devices, and zoned high-pressure fine water mist pump groups, completing the entire process of early warning, smoke exhaust, and fire extinguishing.

[0008] Furthermore, the partitioned high-pressure fine water mist pump unit is equipped with a 6m³ closed pressure-stabilizing water storage tank. The tank is connected to the outlet of the variable frequency water supply pump and is equipped with an online water quality monitoring module to ensure that the water quality for fire extinguishing meets the standards. Non-contact ultrasonic upper and lower liquid level sensors are installed on the top of the tank cavity, with trigger thresholds set at 5.8m³ and 1.2m³, respectively. The signals are connected to the central monitoring center via Modbus-RTU bus. When the liquid level is lower than 1.2m³, the system automatically starts the variable frequency water supply pump to replenish water at a stable flow rate of 15m³ / h to maintain sufficient water supply reserves.

[0009] Furthermore, the partitioned high-pressure fine water mist pump group is divided into an independent water supply unit every 80m according to the vertical height of the curtain wall. Each unit is equipped with two high-pressure plunger pumps, one main and one backup, with a rated working pressure of 14MPa and a rated flow rate of 90L / min. The inlet pipe is connected to the pressure-stabilizing water storage tank through a pipeline with a flexible shock-absorbing joint, and the outlet pipe is connected to a high-precision digital water pressure transmitter after being equipped with a pressure buffer tank.

[0010] 4. The precision water mist fire extinguishing system for high-rise building curtain wall fires according to claim 1, characterized in that the main and backup pumps adopt a millisecond-level automatic switching redundancy architecture: when the main pump operating current exceeds the rated value by 120%, or the outlet pressure is lower than the set value of 0.8MPa for 3 seconds, the global fire linkage controller immediately cuts off the power supply to the main pump, and completes the startup and pressure ramp-up of the backup pump within 200ms. During the switching process, the pipeline pressure fluctuation is controlled within ±0.3MPa, which does not affect the normal spraying effect of the fine water mist.

[0011] Furthermore, the high-precision digital water pressure transmitter is connected to an independently addressable high-pressure solenoid valve via a water supply pipeline, and finally interfaces with a directional jet fine water mist nozzle. The water pressure transmitter interacts bidirectionally with the global fire linkage controller, and the solenoid valve control terminal is directly connected to the controller output circuit. The independently addressable high-pressure solenoid valve has a built-in unique 64-bit physical address chip. The global fire linkage controller can directly issue an opening command to any single solenoid valve via the Modbus-TCP protocol without needing to link other valves in the same pipeline. The single valve response time is less than 15ms, achieving precise and independent control of a single nozzle.

[0012] Furthermore, the directional jet fine water mist nozzle has a built-in two-stage staggered vortex chamber. The first-stage guide groove has a spiral angle of 38° and the second-stage guide groove has a spiral angle of 52°. The outlet is provided with a 1.1mm diameter hard alloy nozzle hole. Under a working pressure of 13MPa, the fine water mist particles generated are all less than 90μm in size. The droplet dynamic pressure is maintained above 0.22MPa at a distance of 3m from the nozzle. It can penetrate the strong lateral wind on the outside of the curtain wall at 13m / s and accurately reach the ignition point.

[0013] Furthermore, the system employs a dual verification mechanism for fire detection: distributed temperature-sensing fiber optic nodes are deployed every 1.8m along the horizontal decorative seams of the curtain wall, with a built-in fiber optic demodulation module sampling frequency of 2Hz and a temperature measurement accuracy of ±0.3℃. The temperature data of adjacent nodes are compared by the floor data integrator. When the temperature difference between three consecutive nodes exceeds 20℃ and the temperature rise rate is greater than 12℃ / s, the system enters the pre-start state.

[0014] Furthermore, the binocular AI video monitor is equipped with a lightweight YOLO flame recognition model, with a single-frame inference time of less than 0.15s. It simultaneously recognizes flame color, flashing frequency, and motion characteristics. After identifying a suspected fire, it immediately uploads a secondary confirmation signal. Only when the abnormal temperature data from the heat-sensing fiber and the video flame recognition result simultaneously meet the judgment conditions will the system officially start the fire extinguishing process, reducing the false start rate for non-fire situations to below 0.05%.

[0015] Furthermore, the central monitoring center integrates a 4K ultra-high-definition splicing screen with an industrial control computer. The industrial control computer is equipped with a full-scene visualization module for the curtain wall based on digital twins, and has a built-in full-parameter BIM model of the building curtain wall. It can map the monitoring data uploaded by the integrators on each floor to the corresponding positions in the three-dimensional model in real time. Abnormal data of any monitoring node can complete a high-brightness pop-up warning within 100ms, intuitively grasp the location of the fire and the system operation status, realize early detection, accurate location, and targeted extinguishing of fires in the curtain wall of super high-rise buildings, and greatly improve fire extinguishing efficiency and system reliability.

[0016] The beneficial effects of this invention are as follows:

[0017] The present invention discloses a precise fine water mist fire extinguishing system for curtain walls of super high-rise buildings. It adopts a dual fire identification mechanism of "temperature anomaly pre-judgment + AI video secondary verification", which completely abandons the judgment logic of traditional single sensor. It reduces the system's non-fire false start rate from more than 8% in the industry to less than 0.05%, completely avoids accidental spraying in non-fire conditions, and greatly reduces the risk of property loss caused by system malfunction.

[0018] This invention discloses a precision fine water mist fire extinguishing system for curtain walls of ultra-high-rise buildings. It innovatively proposes a zoned water supply architecture with an independent water supply unit every 80 meters along the vertical of the building. Combined with a millisecond-level automatic switching redundancy design for main and backup pumps, it can maintain a stable spray pressure of over 13MPa throughout the entire height range of ultra-high-rise buildings exceeding 100 meters. This completely solves the industry problem of insufficient pressure in high zones and pressure overload in low zones in traditional systems. At the same time, it adopts an independently addressable high-pressure solenoid valve with a built-in 64-bit unique physical address, realizing millisecond-level independent control of a single fine water mist nozzle without the need to link with other nozzles in the same pipeline. The accuracy of fire extinguishing agent delivery is improved by more than 90%, and the ineffective water resource consumption is significantly reduced.

[0019] This invention discloses a precise water mist fire suppression system for ultra-high-rise building curtain walls. The system utilizes a two-stage staggered vortex chamber water mist nozzle. Under a working pressure of 13MPa, the generated water mist particles are all smaller than 90μm, with droplet dynamic pressure far exceeding that of traditional nozzles. This allows it to penetrate strong lateral winds of up to 13m / s on the outside of the curtain wall and accurately reach the fire point. It is perfectly suited to the special application scenario of frequent strong winds at the top of ultra-high-rise curtain walls. Furthermore, it deeply integrates full-scene monitoring data with the curtain wall BIM model to construct a digital twin visualization control system. The response time for high-brightness warnings of abnormal nodes is less than 100ms. Maintenance personnel can accurately locate the fire point in concealed cavities without entering the building. The fire suppression response speed is more than three times faster than traditional systems. Attached Figure Description

[0020] Figure 1 This is an overall framework diagram of a precision water mist fire suppression system for curtain wall fires in ultra-high-rise buildings, according to the present invention.

[0021] Figure 2 This is a framework diagram of the water supply and power subsystem of a precision fire extinguishing system for curtain walls of ultra-high-rise buildings, according to the present invention. Detailed Implementation

[0022] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0023] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0024] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1 to 2 As shown, a precise water mist fire suppression system for curtain wall fires in ultra-high-rise buildings includes on-site sensing layers on each floor, a regional control layer in the middle of the building's vertical direction, and a central management layer in the fire control room, which relies on an independent fiber optic ring network to complete full-link data transmission.

[0026] Embodiment 1 of this invention patent: Adaptable scenarios for unitized glass curtain walls in 320m super high-rise office buildings

[0027] This embodiment is applied to a super high-rise 5A-grade office building with a building height of 320m. The building facade adopts a fully concealed frame unitized glass curtain wall. A 300mm wide continuous closed fireproof cavity is reserved on the inner side of the curtain wall. The total vertical coverage height of the curtain wall is 312m. The system is fully adapted to the fire prevention and control requirements of this type of large-span closed cavity.

[0028] One floor data integrator is deployed every two floors along the building's vertical axis, totaling 52 units. Each integrator connects to four types of field sensing devices: distributed temperature-sensing fiber optic cables are deployed with one node every 1.8m along the horizontal decorative seams of the curtain wall, totaling 2160 temperature measurement points throughout the building. The fiber optic demodulation module has a sampling frequency of 2Hz and a temperature measurement accuracy of ±0.3℃; photoelectric composite smoke sensors are deployed every 12m along the longitudinal direction of the cavity, totaling 720 units throughout the building; binocular AI video monitors are deployed with one unit for every three temperature sensing nodes, with the lens angle completely covering the corresponding curtain wall cavity and facade gaps, totaling 720 units throughout the building; and combustible gas micro-concentration detectors are arranged at the cavity ventilation openings of the equipment layer at the bottom of the curtain wall, totaling 360 units throughout the building. All device data is transmitted through an independent single-mode fiber optic ring network, with end-to-end latency controlled within 50ms.

[0029] The system is divided into independent water supply units every 80m vertical height. The 312m curtain wall is divided into 4 water supply zones. Each zone is equipped with a 6m³ closed pressure-stabilized water storage tank. The water tank has a built-in online water quality monitoring module to detect turbidity, particulate matter concentration and pH value in real time. The upper and lower liquid level trigger thresholds are set at 5.8m³ and 1.2m³, respectively. It is connected to the central monitoring center via Modbus-RTU bus. When the liquid level is lower than 1.2m³, the variable frequency water supply pump is automatically started to replenish water at a flow rate of 15m³ / h until the liquid level reaches 5.8m³, and then the pump stops. Each water supply unit is equipped with two high-pressure plunger pumps, one main and one backup, each with a capacity of 14MPa and a speed of 90L / min. The inlet pipe is fitted with a rubber flexible shock-absorbing joint, and the outlet pipe is equipped with a 2L volumetric pressure buffer tank and a high-precision digital water pressure transmitter. When the main pump's operating current exceeds the rated value by 120% or the outlet pressure is lower than 12.2MPa for 3 seconds, the global fire linkage controller will complete the switching between the main and backup pumps within 200ms. During the switching process, the pipeline pressure fluctuation is controlled within ±0.3MPa.

[0030] The terminal piping connects to the directional fine water mist nozzle via an independently addressable high-pressure solenoid valve. Each solenoid valve has a unique 64-bit physical address chip and uses the Modbus-TCP protocol for independent control, with a single valve response time of less than 15ms. The nozzle features a two-stage staggered vortex chamber: the first stage has a 38° helix angle, and the second stage has a 52° helix angle. The outlet has a 1.1mm hard alloy nozzle hole. At a working pressure of 13MPa, all droplet sizes are less than 90μm, and the droplet dynamic pressure at 3m is 0.22MPa, allowing it to penetrate a 13m / s lateral strong wind. The system employs a dual fire detection mechanism: the fire suppression process is only initiated when the temperature difference between three consecutive temperature sensing nodes exceeds 20℃, the temperature rise rate is greater than 12℃ / s, and the lightweight YOLO flame recognition model on the binocular AI video monitor completes 0.15s single-frame inference and confirms the flame characteristics. This reduces the false activation rate to below 0.05%. The central monitoring center is equipped with a full-parameter BIM digital twin module for the curtain wall. Abnormal data triggers a 3D model pop-up warning within 100ms. The entire system's response time, from fire detection to the activation of targeted sprinklers, is controlled within 3 seconds. Its fire extinguishing efficiency for concealed spaces within the curtain wall is 72% higher than traditional sprinkler systems.

[0031] Embodiment 2 of this invention patent: Adaptation scenarios for stone curtain walls in 150m super high-rise commercial complexes

[0032] This embodiment is applied to an urban commercial complex with a building height of 150m. The building facade adopts a dry-hanging stone curtain wall structure, and a 250mm wide semi-open ventilation cavity is formed between the stone and the main wall. Insulation materials and decorative keel are densely arranged in the cavity, and fire can easily spread rapidly along the vertical direction. The system has been specially adapted and optimized for this semi-open cavity scenario.

[0033] One floor data integrator is deployed on each floor vertically along the building, totaling 38 units, to meet the monitoring needs of the stone curtain wall with its numerous vertical gaps and the potential for fire to spread between floors. Distributed temperature-sensing optical fibers are deployed every 1.5m along the horizontal dry-hanging joints of the stone curtain wall, totaling 1440 temperature measurement points throughout the building. The sampling frequency of the optical fiber demodulation module has been increased to 3Hz, and the temperature measurement accuracy has been upgraded to ±0.2℃, enabling earlier detection of weak temperature rise signals caused by smoldering insulation materials. One photoelectric composite smoke sensor is deployed every 8m along the longitudinal direction of the cavity, covering the entire building. The building has a total of 570 units, adapted to the characteristics of semi-open cavities where smoke can easily diffuse and escape; one binocular AI video monitor is deployed for every two temperature sensing nodes, with polarizing filters added to the lenses to prevent strong light reflection from the dry-hanging stone surface from interfering with flame detection, totaling 720 units; combustible gas micro-concentration detectors are densely arranged in the insulation material storage area at the bottom of the curtain wall and the gas pipeline crossing section, totaling 280 units. All equipment data is transmitted through a ring redundant fiber optic network, ensuring that data transmission will not be interrupted by any fiber optic break.

[0034] The system is divided into independent water supply units every 75m vertical height. The 150m curtain wall is divided into two water supply zones, each equipped with a 5m³ closed pressure-stabilized water storage tank. The water quality online monitoring module built into the tank has an additional function to detect fiber impurities in the insulation material, preventing fiber impurities falling from the stone curtain wall cavity from entering the water tank and clogging the nozzles. The upper and lower liquid level trigger thresholds are set to 4.8m³ and 1.0m³, respectively, and are connected to the central monitoring center via Modbus-RTU bus. When the liquid level is below 1.0m³, the variable frequency water replenishment pump is automatically started, replenishing water at a flow rate of 12m³ / h until it reaches 4.8m³, and then the pump stops. Each water supply unit is equipped with two 12MPa, 80L / min high-pressure plunger pumps, one main and one backup. The inlet pipe is fitted with a stainless steel flexible shock-absorbing joint to meet the low vibration requirements of high-traffic areas in commercial complexes. The outlet pipe is equipped with a 1.8L volumetric pressure buffer tank and a high-precision digital water pressure transmitter. When the main pump's operating current exceeds the rated value by 115% or the outlet pressure is lower than 10.2MPa for 2.5 seconds, the whole-area fire linkage controller will complete the switching of the main and backup pumps within 180ms. During the switching process, the pipeline pressure fluctuation is controlled within ±0.25MPa.

[0035] The independently addressable high-pressure solenoid valves in the terminal pipelines have optimized the 64-bit physical address grouping logic for the dense locations of stone curtain walls, supporting batch control of nozzles on a per-stone-pane basis, with a single valve response time of less than 12ms. The directional fine water mist nozzles have optimized the swirl chamber structure for the semi-open cavities of the stone curtain wall, with the first-stage guide channel spiral angle adjusted to 40° and the second stage to 55°. The outlet has a 1.0mm hard alloy nozzle, ensuring all droplet sizes are less than 80μm at an 11MPa working pressure, and a droplet dynamic pressure of 0.2MPa at 3m, allowing penetration of 11m / s lateral strong winds. This also prevents excessive fine water mist spraying from causing long-term water immersion and alkali return on the stone surface. The system's dual fire detection mechanism has been algorithmically optimized for smoldering scenarios involving insulation materials. When two consecutive temperature sensors detect fire... When the temperature difference at the nodes exceeds 18℃ and the temperature rise rate is greater than 10℃ / s, and the dual-eye AI video monitor detects the weak open flame and smoke characteristics of smoldering, the system automatically starts the smoke exhaust fan in the corresponding area to quickly expel the toxic smoke accumulated in the semi-open cavity. Then, it precisely activates the fine water mist nozzles at the corresponding points to extinguish the fire. The false activation rate for non-fire situations is reduced to below 0.03%. The digital twin module of the central monitoring center additionally imports the dry-hanging keel and insulation material distribution parameters of the stone curtain wall. Abnormal data completes the 3D model high-brightness pop-up warning within 80ms, and automatically generates a fire spread path prediction report. The entire system controls the fire extinguishing response time for smoldering scenarios of the stone curtain wall insulation layer to within 2.5s, and the vertical spread speed of the fire is reduced by more than 90% compared with the traditional fire protection system.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precise water mist fire suppression system for targeted fire suppression of curtain walls in ultra-high-rise buildings, characterized in that, This includes the on-site sensing layer on each floor, the area control layer in the middle of the building's vertical direction, and the central management layer in the fire control room, all relying on an independent fiber optic ring network to complete the full-link data transmission. The central monitoring center connects to floor data integrators deployed every two floors along the building's vertical direction via an independent fiber optic ring network. Each data integrator connects to four types of field sensing devices: distributed temperature-sensing fiber optic nodes deployed along the inner cavity of the curtain wall, photoelectric composite smoke sensors, binocular AI video monitors, and combustible gas micro-concentration detectors, enabling multi-dimensional real-time monitoring of fire conditions in the concealed spaces of the curtain wall. The output of the central monitoring center is connected to the variable frequency water supply pump and the global fire linkage controller, which serves as the regional control core and simultaneously manages the dedicated smoke exhaust fans for the curtain wall cavity, embedded audible and visual early warning devices, and zoned high-pressure fine water mist pump groups, completing the entire process of early warning, smoke exhaust, and fire extinguishing.

2. The precision water mist fire suppression system for curtain wall fires in super high-rise buildings according to claim 1, characterized in that, The partitioned high-pressure fine water mist pump unit is equipped with a 6m³ closed pressure-stabilizing water storage tank. The tank is connected to the outlet of the variable frequency water supply pump and is equipped with an online water quality monitoring module to ensure that the water quality for firefighting meets the standards. Non-contact ultrasonic upper and lower liquid level sensors are installed on the top of the tank cavity, with trigger thresholds set at 5.8m³ and 1.2m³, respectively. The signals are connected to the central monitoring center via Modbus-RTU bus. When the liquid level is lower than 1.2m³, the system automatically starts the variable frequency water supply pump to replenish water at a stable flow rate of 15m³ / h to maintain sufficient water supply reserves.

3. The precision water mist fire suppression system for curtain wall fires in super high-rise buildings according to claim 1, characterized in that, The partitioned high-pressure fine water mist pump group is divided into an independent water supply unit every 80m according to the vertical height of the curtain wall. Each unit is equipped with two high-pressure plunger pumps, one main and one backup, with a rated working pressure of 14MPa and a rated flow of 90L / min. The water inlet pipe is connected to the pressure-stabilizing water storage tank through a pipeline with a flexible shock-absorbing joint, and the water outlet pipe is connected to a high-precision digital water pressure transmitter after being equipped with a pressure buffer tank.

4. The precision water mist fire suppression system for curtain wall fires in super high-rise buildings according to claim 1, characterized in that, The main and backup pumps adopt a millisecond-level automatic switching redundancy architecture: when the main pump's operating current exceeds the rated value by 120%, or the outlet pressure is lower than the set value of 0.8MPa for 3 seconds, the global fire linkage controller immediately cuts off the main pump's power supply and completes the backup pump's startup and pressure ramp-up within 200ms. During the switching process, the pipeline pressure fluctuation is controlled within ±0.3MPa, which does not affect the normal spraying effect of the fine water mist.

5. A precise water mist fire suppression system for targeted fire suppression of curtain walls in super high-rise buildings according to claim 1, characterized in that, The high-precision digital water pressure transmitter is connected to an independently addressable high-pressure solenoid valve via a water supply pipeline, and finally interfaces with a directional jet fine water mist nozzle. The water pressure transmitter interacts bidirectionally with the global fire linkage controller, and the solenoid valve control terminal is directly connected to the controller output circuit. The independently addressable high-pressure solenoid valve has a built-in unique 64-bit physical address chip. The global fire linkage controller can directly issue an opening command to any single solenoid valve via the Modbus-TCP protocol without needing to link other valves in the same pipeline. The single valve response time is less than 15ms, achieving precise and independent control of a single nozzle.

6. A precise water mist fire suppression system for targeted fire suppression of curtain walls in super high-rise buildings according to claim 1, characterized in that, The directional jet fine water mist nozzle has a built-in two-stage staggered vortex chamber. The first-stage guide groove has a spiral angle of 38° and the second-stage guide groove has a spiral angle of 52°. The outlet is equipped with a 1.1mm diameter hard alloy nozzle hole. Under a working pressure of 13MPa, the fine water mist generated has a particle size of less than 90μm. The droplet dynamic pressure at a distance of 3m from the nozzle is maintained above 0.22MPa. It can penetrate the strong lateral wind on the outside of the curtain wall at 13m / s and accurately reach the ignition point.

7. A precise water mist fire suppression system for targeted fire suppression of curtain walls in super high-rise buildings according to claim 1, characterized in that, The system employs a dual verification mechanism for fire detection: distributed temperature-sensing fiber optic nodes are deployed every 1.8m along the horizontal decorative seams of the curtain wall, with a built-in fiber optic demodulation module sampling frequency of 2Hz and a temperature measurement accuracy of ±0.3℃. Temperature data from adjacent nodes are compared using a floor data integrator. When the temperature difference between three consecutive nodes exceeds 20℃ and the temperature rise rate is greater than 12℃ / s, the system enters a pre-start state.

8. A precise water mist fire suppression system for targeted fire suppression of curtain walls in super high-rise buildings according to claim 1, characterized in that, The binocular AI video monitor is equipped with a lightweight YOLO flame recognition model. The single-frame inference time is less than 0.15s. It simultaneously recognizes flame color, flashing frequency and motion characteristics. After identifying a suspected fire, it immediately uploads a secondary confirmation signal. Only when the abnormal temperature data of the heat-sensing fiber and the video flame recognition result meet the judgment conditions will the system officially start the fire extinguishing process, reducing the false start rate of non-fire situations to below 0.05%.

9. A precise water mist fire suppression system for targeted fire suppression of curtain walls in super high-rise buildings according to claim 1, characterized in that, The central monitoring center integrates a 4K ultra-high-definition splicing screen with an industrial control computer. The industrial control computer is equipped with a full-scene visualization module for the curtain wall based on digital twins. It has a built-in full-parameter BIM model of the building curtain wall, which can map the monitoring data uploaded by the integrators on each floor to the corresponding positions in the 3D model in real time. Abnormal data of any monitoring node can complete a high-brightness pop-up warning within 100ms, intuitively grasp the location of the fire and the operating status of the system, realize early detection, accurate location and fixed-point extinguishing of fires in the curtain wall of super high-rise buildings, and greatly improve fire extinguishing efficiency and system reliability.

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