942 results about "Fire suppression system" patented technology

The invention relates to the technical field of communication machine room safety protection, and discloses a communication machine room intelligent fire monitoring and fire extinguishing system based on edge computing, which comprises a fire parameter acquisition module, a temperature characteristic analysis module, a smoke dynamic detection module, a multi-source fusion judgment module, a regulation and control parameter generation module and the like. The fire parameter acquisition module acquires parameters such as temperature gradient, smoke concentration and equipment current, judges fire risk and triggers cooperative monitoring; the temperature characteristic analysis module extracts temperature distribution characteristics and quantitatively evaluates hot spot abnormity; the smoke dynamic detection module analyzes the smoke diffusion trend; the multi-source fusion judgment module is combined with multiple parameters to generate a fire extinguishing or optimizing signal; and the regulation and control parameter generation module is matched with the strategy to generate injection and ventilation parameters. The system also corrects a risk index through an equipment coupling analysis module, and forms closed-loop control by using a dynamic feedback execution module. According to the system, multi-source data fusion monitoring and intelligent fire extinguishing are realized, and the fire prevention and control accuracy of the communication machine room is improved.

A fire suppression system includes an interface control module, and an interface module. The interface control module can activate a fire suppressant discharge system in response to receiving a fire detection signal. The interface module is connected with the interface control module and is connected with at least one of a first optical sensor and an interface expansion module. The interface expansion module is configured to connect with a second optical sensor. The first optical sensor and the second optical sensor are configured to detect a fire condition at an area of interest and provide the first detection signal to the interface control module in response to detecting the fire. The interface module includes light emitting devices corresponding to the first optical sensor and the interface expansion module, the light emitting devices configured to display different colors indicating a status of the first optical sensor and the interface expansion module.

The disclosure is directed to a fire suppression system that includes all control components in a single integrated panel. It further contemplates and may include a chamber configured to maintain an interior inert atmosphere and to enclose and establish a nonflammable workspace for a pyrophoric workpiece. A temperature sensor may also be included and mounted proximate the workspace, along with an oxygen concentration sensor configured to detect an interior oxygen concentration of the atmosphere. The system also includes a dispenser configured to discharge an antipyrophoric granular material onto the workpiece responsive to automatic detection proximate the workpiece of at least one of a predetermined temperature and oxygen concentration. In variations, the chamber is configured as a glove box having viewing windows and a plurality of sealed glove ports positioned to enable user manipulation of the workpiece about the workspace.

The invention relates to a gas-water curtain partition type tunnel smoke control system and method, and belongs to the field of tunnel fire prevention and control, the gas-water curtain partition type tunnel smoke control system comprises a tunnel, smoke control partitions, a tunnel fire extinguishing system, a gas curtain generation system, a water curtain generation system and a fire detection alarm, the gas curtain generation system comprises a gas curtain generation tail end, and the water curtain generation system comprises a water curtain generation tail end. The tunnel is divided into a plurality of smoke control subareas by the air curtain generation tail end and / or the water curtain generation tail end. A plurality of air curtains and water curtains can be formed at the boundaries of the two sides of the smoke control subareas, at the moment, smoke generated by a fire source can be isolated into the smoke control subareas, the smoke can be continuously eliminated under the internal circulation purification effect of the tunnel fire extinguishing system, meanwhile, the tunnel fire extinguishing system can automatically restrain fire spreading, and therefore the smoke spreading path is thoroughly blocked.

The invention relates to the technical field of fire alarm and fire extinguishing, and discloses a zero-false-alarm automatic fire alarm and fire extinguishing system based on multi-condition judgment, and the system comprises a data collection module which is used for obtaining environment monitoring data and image data; the image analysis module is used for outputting image fire confidence by adopting a pre-trained model; the information fusion judgment module is used for calculating a single fire confidence coefficient of each monitoring parameter and fusing the single fire confidence coefficient to obtain a comprehensive fire confidence coefficient; the trial spraying dynamic verification module is used for controlling a fire extinguishing agent to perform trial spraying, establishing a sensor prediction model, outputting predicted environment monitoring data and outputting a verification passing result; the self-adaptive dosage control module is used for calculating the heat release amount through a temperature rise-volume energy balance method and further calculating the main fire extinguishing dosage; and the fire extinguishing execution module is used for implementing main spraying fire extinguishing, calculating a residual fire index and triggering supplementary spraying when the residual fire index reaches a threshold value. According to the invention, the intelligence and reliability of the fire alarm and fire extinguishing system are improved.

A method of using a fire suppression system includes maintaining an inert atmosphere in a chamber; enclosing a pyrophoric workpiece in the chamber; sensing a chamber temperature within the chamber with a temperature sensor; sensing a chamber oxygen concentration within the chamber with an oxygen sensor; comparing the chamber temperature to a predetermined temperature and comparing the chamber oxygen concentration to a predetermined oxygen concentration; dispensing an antipyrophoric material onto the workpiece within the chamber if the chamber temperature meets or exceeds the predetermined temperature or if the chamber oxygen concentration meets or exceeds the predetermined oxygen concentration.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

The invention relates to the field of liquefied natural gas, in particular to a liquefied natural gas double-layer tank liquid nitrogen circulation cooling and fire extinguishing system and method. The system comprises a double-layer tank body, a liquid nitrogen cooling and fire extinguishing assembly and a liquid nitrogen collecting and circulating assembly, the double-layer tank body comprises an inner tank body and an outer tank body, the inner tank body is located in the outer tank body and provided with a temperature sensor, and a plurality of superconducting magnetic suspension supporting modules are arranged between the outer tank body and the inner tank body; the liquid nitrogen cooling and fire extinguishing assembly comprises a liquid nitrogen storage tank and a liquid nitrogen circulating main pipe, the liquid nitrogen circulating main pipe communicates with the liquid nitrogen storage tank and is spirally wound on the peripheral wall of the inner tank body, and a plurality of exhaust holes are formed in the part, located in the cavity, of the liquid nitrogen circulating main pipe in the extending direction; the liquid nitrogen collecting and circulating assembly comprises a loop pipe, a liquid nitrogen collecting tank and a circulating pipe, the loop pipe communicates with the cavity and the liquid nitrogen collecting tank and is further connected with an air suction pump and a cooling and pressurizing device in series, and the circulating pipe communicates with the liquid nitrogen collecting tank. The inner tank body can be rapidly and comprehensively cooled, and a fire can be rapidly extinguished when the fire occurs.

The present system provides an integrated fire suppression system that enables use of hybrid media fire-extinguishing systems and methods, and which includes all components in a single integrated control panel and cabinet, other than system piping to nozzles or emitters. The system enables the entire panel and cabinet to be inspected and analyzed, and installed, repaired, or maintained in a single operation, dramatically reducing time spent on site and reducing the qualifying process as well. The assembly of the panel is off-site, typically under the inspection of any qualifying agencies. Once assembled, the system can remain qualified for rapid installation at any future time, allowing easy replacement of faulty panels or consumables.

The utility model discloses a prefabricated cabin type lithium battery automatic fire extinguishing test device, and relates to the technical field of lithium batteries. Comprising a prefabricated cabin body, a bottom plate is arranged in the middle of the prefabricated cabin body, a fire extinguishing agent storage tank is arranged on the bottom plate and connected with a pressure monitoring device, a displayer and a fire extinguishing controller are connected to the upper portion of the bottom plate and arranged on the two sides of the pressure monitoring device respectively, and sensors are symmetrically installed at the top end of the cabin wall of the prefabricated cabin body. The fire extinguishing agent storage tank is connected to all the battery modules through the pipe network system, so that the fire extinguishing agent can directly act on a fire source, the fire extinguishing agent can quickly and uniformly cover all the battery modules when a fire occurs, and the fire behavior is effectively controlled; by integrating the fire extinguishing system and the control system, the battery state can be monitored in real time, a fire extinguishing program is automatically triggered when abnormality is detected, and the safety and accuracy of the test process are ensured.

A method for testing a tunnel fire suppression system in the form of a water deluge system having a wet side and a dry side separated by a valve, includes the step of providing a nozzle arrangement comprising a plurality of nozzles, with each nozzle disposed in or coupled to an outlet of the water deluge system. The nozzle arrangement comprises, is coupled to or operatively associated with a sensor arrangement configured to measure the pressure of air at each of the plurality of outlets of the water deluge system and output one or more output signals indicative of the pressure of the air at the one or more outlets. The method includes providing a supply of pressurised air through the water deluge system using a blower coupled to the water deluge system. The method further includes measuring the pressure of the air at the one or more outlets of the water deluge system and outputting an output signal indicative of the pressure of the air at the one or more outlets, and conveying the output signal to a processing system configured to determine from said one or more output signals the flow rate of the air supply at the one or more outlets.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

Provided is a battery module and battery rack having enhanced fire safety features. The battery module includes a swelling / pressure sensor that detects swelling of a battery cell. An output signal of the sensor is used to halt operation of a battery rack / battery system containing the battery module and prevent charging and discharging of the battery module. In an embodiment, the battery module uses an AC-to-AC power supply to provide AC frequency power for balancing battery cells of the battery module. In an embodiment, the battery rack includes an internal water fire suppression system that provides battery cooling in the event of a battery cell fire to prevent the spread and / or reigniting of the fire.

The invention relates to the technical field of computer vision, and discloses a flame recognition and fire extinguishing system for indoor fire fighting, comprising: a binocular infrared imaging module for acquiring a thermal imaging image; the monocular visible light imaging module is used for acquiring a visible light image; the infrared stereoscopic vision module is used for carrying out processing and feature extraction on the thermal imaging images, carrying out feature aggregation to obtain an aggregated feature map, carrying out parallax optimization on the aggregated feature map, and carrying out calculation according to a parallax optimization result to obtain depth information of the thermal imaging images at different visual angles; the multi-mode stereoscopic vision fusion module is used for fusing the thermal imaging image with the depth information and the visible light image; the flame identification and fire behavior prediction module is used for performing flame detection according to the fused image, predicting a bounding box, confidence and a category label of the flame in the fused image, and predicting a future diffusion position of the flame, a diffusion scale of the flame and a diffusion trend of the flame; and the self-adaptive water gun spraying control module controls the water gun to execute spraying operation.

The invention relates to the technical field of fire detection and fire extinguishing, and discloses a large-space intelligent active fire extinguishing system which comprises a sound wave imaging module used for emitting ultrasonic waves in a target space, receiving echoes, analyzing the position of a fire source and generating three-dimensional fire source positioning data; the intelligent optical fiber sensing network is deployed in each area of the space and is used for collecting temperature, pressure and humidity information in real time and sending the collected environmental parameter data to the central control system; and the central control system is in two-way communication with the sound wave imaging module and the intelligent optical fiber sensing network and receives fire source positioning data and environment monitoring data provided by the sound wave imaging module and the intelligent optical fiber sensing network. Through the multi-modal fusion scheme of the intelligent optical fiber sensing technology and the sound wave imaging technology, the high-precision real-time monitoring effect on a fire source and the environment is achieved, accurate positioning and dynamic tracking of the position of the fire source are achieved, and powerful data support is provided for fire extinguishing decision making.

The self-extinguishing battery pack comprises a battery pack body and a fire extinguishing system, the battery pack body is of a multi-layer structure, a sensor, a control panel and a power-off structure are arranged in the battery pack body, and the fire extinguishing system is arranged outside the battery pack body. The fire extinguishing system has a multi-trigger mechanism and a double-cooperative fire extinguishing mechanism so as to extinguish the power supply in time when the power supply burns. The battery pack is separated by adopting a multi-layer structure, and an abnormal heating layer is accurately positioned by combining temperature and smoke sensors; the layered structure isolates the fire behavior, optimizes the space and improves the energy density; a water-based and aerosol dual fire extinguishing mechanism is adopted, aerosol is firstly released to inhibit reaction, and then the water-based is cooled to cope with thermal runaway cooperatively; the hot melting ball automatically switches pressure, and external energy is not needed; three trigger mechanisms are integrated to form a protection system, so that the emergency capability is enhanced, and the reliability at extreme high temperature is ensured; the circuit is automatically cut off to prevent diffusion when abnormity occurs; the separated design avoids interference, and the metal spring realizes power-off protection; the monitoring fault tolerance is improved through multiple sensors, and the fire extinguishing time sequence is guaranteed through pressure difference.

A fire suppression system for a vehicle includes a fire detection device, a tank, a nozzle, and an activator. The fire detection device is configured to detect a fire in a hazard area. The activator is configured to selectively release during a single-agent phase the fire suppressant contained in the tank such that after the first tank is substantially emptied at least a portion of the pressurized gas passes through the outlet of the nozzle and floods the hazard area.

The invention relates to the technical field of fire early warning, in particular to a fire extinguishing system based on a multi-modal sensor and a multi-stage linkage control method.The fire extinguishing system based on the multi-modal sensor comprises a multi-spectral light source module, the multi-spectral light source module is configured to emit a dual-wavelength light beam with a preset divergence angle, the first wavelength # imgabs0 # is located in the visible light wave band, and the second wavelength # imgabs1 # is located in the near-infrared wave band; a temperature gradient sensor array and a scattering angle adjustable photoelectric detector array are arranged in the composite detection cavity, the temperature gradient sensor array comprises miniature thermocouple groups which are distributed in a spatial orthogonal manner, and the photoelectric detector array comprises a multi-angle receiving unit which can slide along a spherical track; the matrix eliminates coupling interference of a temperature field on scattering characteristics of smoke particles through a dual-wavelength phase locking algorithm; according to the scheme, the dynamic coupling interference of the temperature field and the scattering characteristic can be fundamentally solved.

An extinguishing system comprises: —at least one extinguishing agent sprayer (8) that is able to be rotated about a mounting axis (19) and is able to be pivoted about a pivot axis by means of at least one motor and is connected to an extinguishing agent line in order to be supplied with extinguishing agent, —at least one camera (7) that is able to be rotated at least about a mounting axis (17) by means of at least one motor (20), —an electronic controller (10) that comprises at least one storage unit (12) in which at least geometric basic data of the relevant area and / or data of the extinguishing agent sprayer (8) are stored so as to be able to be read, and a computer module (13) for data processing, —an input device, connected to the controller (10), for inputting data and / or for controlling the extinguishing agent sprayer (8) and the camera (7) and—a screen, connected to the controller (10), for displaying images from the camera (7). The mounting axis (17) of the camera (7) and the mounting axis (19) of the extinguishing agent sprayer (8) are oriented parallel to one another, and the optical axis (21) of the camera (7) is oriented at a defined starting angle with respect to the mounting axis (17), wherein the starting angle is stored in the storage unit (12).

A fire suppression system includes a delivery system that is configured to receive fire suppressant agent from a reservoir and provide the fire suppressant agent to an area at a flow rate, according to some embodiments. In some embodiments, the delivery system is further configured to provide a first quantity of fire suppressant agent to an area at a first flow rate during a first time interval. In some embodiments, the delivery system is further configured to provide a second quantity of fire suppressant agent to the area at a second flow rate during a second time interval. In some embodiments, the second flow rate is less than the first flow rate. In some embodiments, the first and the second quantity of fire suppressant agent are provided to the area via a nozzle.

The invention provides a perfluorohexanone active fire extinguishing system applied to an energy storage power station, and belongs to the technical field of active fire extinguishing systems, the perfluorohexanone active fire extinguishing system comprises a multi-mode composite detection array composed of a thermal imaging sensor, an air pressure sensor, a visible light camera and an ultraviolet light sensor, the multi-mode composite detection array is configured to collect temperature field data, air pressure data, visible light video streams and ultraviolet spectrum data in the energy storage battery cabin by a preset timestamp synchronization mechanism, and output four-mode original data streams to the thermal runaway micro-hotspot recognition engine and the like; early discovery, accurate positioning, fine release, true suppression and self-evolution full-closed-loop active fire extinguishing of the energy storage power station in the high-altitude extreme environment are achieved, and the safety, economical efficiency and long-term maintainability of the energy storage power station are remarkably improved.

The invention discloses an electrochemical energy storage liquid nitrogen fire extinguishing system optimization arrangement method which comprises the steps that basic information of a protection area, a historical arrangement strategy of a fire extinguishing system and historical application information are obtained, and a historical application evaluation value is generated according to the historical application information; evaluating the basic information based on a preset arrangement evaluation index to obtain a reference evaluation value, and dividing the reference evaluation value into a plurality of categories; analyzing the historical arrangement strategies and the historical application evaluation values of the same type of protection areas, and determining an optimal arrangement strategy; obtaining basic information of a to-be-arranged protection area, generating an actual reference evaluation value, determining the category of the to-be-arranged protection area, and constructing a plurality of protection area arrangement simulation models according to the plurality of optimal arrangement strategies of the corresponding category and the basic information; simulation simulation is carried out on the predicted fire type based on the protection area arrangement simulation model, a simulation application evaluation value is generated, an optimal arrangement strategy is determined, the fire extinguishing efficiency of a fire extinguishing system is improved, and economic losses are reduced to the maximum extent.

An integrated fire suppression system includes a cabinet comprising a plurality of defined and isolated compartments; a fire alarm control panel mounted in the cabinet; a first walled compartment of the plurality of defined and isolated compartments, the first walled compartment comprising: a first door comprising a window and covering an opening to the first walled compartment; a gas solenoid electronically connected to the fire alarm control panel; a display electronically connected to the fire alarm control panel and visible through the window; a second walled compartment of the plurality of defined and isolated compartments, the second walled compartment positioned below the first walled compartment when the cabinet is positioned upright on a floor, the second walled compartment comprising a tank and a nozzle; and a gas line connected to the gas solenoid and extending out of the cabinet.

Provided is a station building-based energy storage power station safety protection structure, comprising a plurality of battery clusters arranged within a battery room, the plurality of battery clusters being arranged in an array. A cooling air duct is arranged, within the configuration of a station building, at the rear of the battery clusters. The cooling air duct is provided with cold air outlets corresponding to each battery cluster row. Auxiliary air ducts, which connect to the cold air outlets, are provided and correspond to each battery cluster row. An air exchange vent is provided on each auxiliary air duct at an end facing away from the cooling air duct, and a waste heat utilization plate heat exchanger apparatus is arranged on an inner wall of the battery room, on a side furthest from the cold air outlets. A fire extinguishing system is provided within the station building, the fire extinguishing system comprising a plurality of aerosol fire-extinguishing apparatuses arranged on the inner walls of the station building, and a foam fire-extinguishing system arranged above the battery clusters. A sensor group is arranged on a top wall within the battery room, and the sensor group and the fire extinguishing system are electrically connected to a single controller.

The invention relates to the technical field of fire safety, and discloses a heptafluoropropane fire detection tube fire extinguishing system with an internet of things intelligent monitoring function. The cross-modal physical field sensing module is used for collecting internal physical field data and external environment field data of a protected area in real time; the fire detection tube health assessment and adaptive scanning control module is used for receiving the internal physical field data to execute health state assessment; the cross-modal correlation interference discrimination module is used for receiving internal physical field data and external environment field data; the fire process evolution analysis and time-space association confirmation module is used for receiving data of potential fire events; a precise fire extinguishing strategy generation module; a precise targeted response execution module; and a remote situation awareness and monitoring interaction module. Through the combination of multi-source data verification, health state self-evaluation and accurate response, the problems that a traditional system is weak in anti-interference capacity and prone to false alarm and waste of a fire extinguishing agent are effectively solved, and the accuracy of fire detection and the high efficiency of fire extinguishing response are remarkably improved.

The invention relates to an intelligent fire fighting robot which comprises the following systems: a mobile chassis module adopting a crawler-type driving structure; the multi-mode fire behavior sensing module integrates an infrared thermal imaging sensor, a flame spectrum sensor, a gas component analyzer and a 360-degree holder camera and is used for fire source positioning and personnel search and rescue; the dual fire extinguishing execution system comprises a liftable high-pressure water cannon and a dry powder self-explosion module; and an intelligent control hub. The fire scene sensing capability, the fire extinguishing efficiency and the safety are remarkably improved through multi-mode fire behavior sensing, a dual fire extinguishing system, optimized path planning and efficient communication cooperation.

The invention discloses a fault analysis method and system for an environment-friendly marine high-expansion foam fire extinguishing system, and relates to the field of foam fire extinguishing system.The method comprises the steps that a foam fire extinguishing agent concentrated solution is prepared, the foam fluidity of the foam fire extinguishing agent concentrated solution is analyzed, and the method is combined with a measuring device for use process simulation; meanwhile, collecting a process image generated in the simulation process; analyzing a precipitation process and a coarsening process of the foam extinguishing agent concentrated solution according to the process image, and judging the foam stability of the foam extinguishing agent concentrated solution by combining a performance testing technology; on the basis of foam fluidity and foam stability, the reliability of the foam extinguishing agent concentrated solution under the preparation proportion condition is predicted, and the fault generation probability of the high-expansion foam extinguishing system is analyzed according to the reliability. According to reliability prediction and fault probability analysis, the use state of the foam extinguishing agent concentrated solution can be further analyzed, possible fire extinguishing system faults are warned in advance, and accidents are avoided.

The invention discloses a liquid nitrogen fire extinguishing system and a control method thereof, and particularly belongs to the technical field of battery safety. The system comprises a composite detector, a micro nozzle, a rotary atomization nozzle, a wide-angle nozzle, a BMS, a monitoring host and a liquid nitrogen storage device. The composite detector is used for monitoring the thermal runaway fire intensity of the battery, and the monitoring host is used for controlling the sprayers at different positions and types to convey liquid nitrogen, so that the liquid nitrogen is sprayed out in different forms under different pressures, graded protection of fire at different fire intensities and positions is realized, and accurate release and accurate control of the liquid nitrogen are realized; thermal runaway diffusion is effectively inhibited, the purposes of rapid extinguishing of a battery fire and zero re-combustion are achieved, and the safety of a battery system is improved.

The invention discloses a self-adaptive multi-parameter lithium ion battery thermal runaway early warning method and system, and relates to the technical field of energy storage system safety monitoring. Multi-parameter collaborative acquisition is realized by deploying temperature, voltage, internal stress and gas sensors; de-noising the signal by adopting self-adaptive weighted moving average filtering, and dynamically adjusting the length of a filtering window according to local abrupt change; constructing a comprehensive feature vector, carrying out standardization and principal component analysis dimension reduction, and extracting a key risk factor; generating a time-varying risk score R (t) through dynamic weighted fusion; the early warning threshold is adaptively corrected by combining the current SOC and SOH, and a three-level grading response mechanism is established: the sampling frequency is increased by primary early warning, liquid cooling and current limiting are started by intermediate early warning, a main circuit is cut off by advanced early warning, and a fire extinguishing system is triggered, so that closed-loop safety protection from sensing to disposal is realized.

The invention particularly relates to a control method applying an unmanned aerial vehicle and based on multi-modal characteristics of a fire source, and relates to the technical field of fire safety. Acquiring multi-modal data of a fire source in real time; comprehensively estimating the heat power of the fire source; correcting combustion intensity; and quantitative calculation of fire extinguishing agent demand. An infrared imaging sensor, a visible light camera and a gas sensor array are integrated, a multi-mode fire source sensing system is constructed, the sensing limitation that a traditional fire extinguishing system only depends on single temperature or image is broken through, fire source temperature distribution, flame forms and combustion gas concentration changes can be comprehensively captured, and complete data support is provided for fire behavior judgment; the thermal power of a fire source is estimated in a fusion manner, a fuel type is combined to calibrate a correction coefficient, a differential quantitative calculation model is established according to liquid and solid fire extinguishing agents, fire disasters of different fuels such as wood, gasoline and plastic are adapted, and economy and fire extinguishing reliability are both considered.