65 results about "Active fire" patented technology

The invention discloses a fire extinguishing composition for generating a fire extinguishing substance through chemical reaction among components at high temperature, which is characterized by comprising the following components in percentage by mass: 50 to 90 percent of flame retardant, 5 to 30 percent of oxidant, 5 to 10 percent of reducing agent and 0 to 10 percent of adhesive. During use, smoke and fire agents are taken as a heat source and power source, and by igniting the smoke and fire agents and utilizing the high temperature through combustion of the smoke and fire agents, the oxidant and the reducing agent in the fire extinguishing composition are reacted to generate an active fire extinguishing substance for extinguishing fire. Different from the traditional aerosol generating agent, the fire extinguishing composition does not need an external heat source, and does not combust. Compared with the traditional aerosol generating agent, the fire extinguishing composition is more high-efficiency and more safe.

Methods and apparatus for passive non-electrical dual stage fire suppression according to various aspects of the present invention include detecting a fire with a first active fire suppressant unit and changing the status of a second fire suppressant unit from “stand-by” to “active” when the first fire suppressant unit releases a fire suppressant agent. After the first fire suppressant unit has released its fire suppressant agent, the second fire suppressant unit may detect a continued and / or a new fire and release a second fire suppressant agent in response to the detection.

A computer-implemented system for collecting and assessing wildfire hazard data comprising a mobile device with an application installed on the mobile device for on-site collection of wildfire hazard data and a wildfire risk assessment provider server. The data collected on the mobile device is merged with data at the wildfire risk assessment provider server to produce underwriting risk scores and reports for insurers, education-aimed recommendations and reports for policyholders, wildfire risk alerts for mobile device application users, strategies for client-to-policyholder wildfire awareness communication, and strategies for wildfire response teams used to drive pre-suppression and active fire actions. A method utilizing the system described above.

A mobile firefighting station includes a trailer having opposed ends and a platform therebetween. The trailer may include an axle and wheels so as to be mobile. The mobile firefighting station includes firefighting equipment such as a water tank, a foam fire retardant tank, a water hose with nozzle, and a water cannon operatively interconnected and operated by a fluid delivery assembly. The fluid delivery assembly includes a pump to pressurize a fluid stream. An electricity generator is positioned on the platform and electrically connected to components requiring electricity. The apparatus includes a communications module electrically connected to the generator and having a wireless internet connection and a user interface such that tank fluid levels, fuel levels, maintenance records, weather data, and active fire details are selectively communicated to a remote location using the wireless internet connection.

A method for automatically detecting and mapping fires based on information extracted from commercial overhead EO / IR imagery, creating geo-referenced files which can be opened in most common geographic information system (GIS) software packages. The method creates a shapefile (*.shp & *.shx) and a Google Earth file (*.kmz) which contain the outlines of the areas from the image being processed with active fire in them, which types of files are typically very small compared to the size of the image file being processed. The method utilizes algorithms designed to process information contained in multi-spectral electro-optical imagery to classify pixels as ‘fire’ or ‘non-fire’. The method also has the ability to identify the approximate length, width, and area of the fires detected.

The invention relates to an intelligent terminal for constructing active fire-fighting system and smart building. The intelligent terminal includes a housing, a microprocessor, a communication module, an active fire-fighting perceiving module and an air quality monitoring module, wherein the microprocessor, a communication module, the active fire-fighting perceiving module and the air quality monitoring module form an integral whole on the housing; the active fire-fighting perceiving module, the air quality monitoring module and the communication module are connected with the microprocessor; the active fire-fighting perceiving module includes a combustible gas and smog concentration sensor, a temperature sensor, and a gyro sensor which is used for monitoring building structural vibration and building structure attitude so as to judge whether the building structure is safe; and the air quality monitoring module includes a TVOC air quality sensor and a PM sensor. The intelligent terminal for constructing active fire-fighting system and smart building is comprehensive in functions, can help people to effectively monitor the important fire-fighting influencing factor, the air quality influencing factor and the environmental influencing factor which cannot be digitalized or have lower sensitivity, and can reflect the monitoring result to a mobile terminal of a user to enable people to conveniently and comprehensively know about the safety and comfort situation of the monitored area.

The invention relates to a cold-resistant environment-friendly water fire extinguishing agent. The cold-resistant environment-friendly water fire extinguishing agent contains no PFOS fluorine hydrocarbon surface active agent, is added with an active fire extinguishing component, is capable of solving the problems of synergic effects of all the components and cold-resistant environmental protection, is capable of greatly promoting the fire extinguishing efficiency, cold resistance and environmental protection level, meets the standard requirement of GB / T17835-2008 Water Fire Extinguishing Agent, has a smoke abatement function and is nontoxic. The cold-resistant environment-friendly water fire extinguishing agent is suitable for electrified fire extinguishing for various fire disasters, such as, solid, oily and water-soluble fluid fuels, is suitable for fire extinguishing with fresh water and seawater at low temperature below -40 DEG C, and can be filled into the present common fire extinguishing devices and pipeline fire extinguishing systems. The cold-resistant environment-friendly water fire extinguishing agent is simple in production process, low in equipment investment, low in production cost and suitable for large-scale production.

The invention discloses an autonomous land vehicle based on active fire-fighting early warning, which comprises a vehicle body, a microprocessor, a marching system, a fire source detecting device and a fire extinguishing system, wherein the marching system comprises a left wheel, a right wheel, a universal wheel, three infrared obstacle avoiding sensors, two 360 DEG steering gears respectively used for controlling the left wheel and the right wheel, and three infrared photoelectric sensors used for identifying navigational paths, wherein the infrared obstacle avoiding sensors and the infrared photoelectric sensors are all connected with the microprocessor; the fire source detecting device comprises four far infrared flame sensors; and the fire extinguishing system arranged at the back end of the vehicle body comprises a bracket, an electric fan, a dry powder fire extinguishing device and a flame detector. A system of the autonomous land vehicle has the characteristics of low cost, high autonomy, good real-time performance and small volume, and is suitable for group micro autonomous land vehicle operation, thereby optimizing fire-fighting manpower inputs. The autonomous land vehicle can be used in fire disaster prevention and control fields such as building automation, communities, warehouses, and the like.

A system and a method for active fire extinguishing and explosion suppression in coal mine workplaces are especially suitable for monitoring, early warning, and actively inserting and inhibiting in spaces that are prone to fire and explosion hazards, and the spaces comprise coal mine workplaces that generate gas and coal dust, and gas and coal dust accumulated areas in coal storage bunkers, and the like. Quantitative evaluation of environmental space explosion hazard degrees is obtained by the system through active monitoring and comprehensive evaluating of a plurality of parameters such as gas composition, dust concentrations, ambient temperature, photoelectric signals, etc. in a working environment, thereby providing theory criteria for action execution of explosion suppression mechanisms. According to the invention, real-time monitoring of environmental parameters of gas and coal dust in workplaces and advanced quantitative determination of explosion hazard degrees are realized, and therefore effective explosion suppression measures are adopted proactively before an explosion hazard occurs, and the probability of successful execution of explosion suppression is increased.

The invention provides a gas-solid two-phase jet type active fire resistance and explosion suppression method, which is suitable for fire resistance and explosion suppression in industrial pipelines used for conveying combustible gases with explosive risks and is also suitable for explosion suppression in lanes in the case of underground coal mine gas explosion. Two flame sensors and two powder storage pipes are arranged on the outer wall surface of a pipeline, an ABC powder extinguishing agent fills up the powder storage pipes, in the case of combustible gas combustion or explosion in the pipeline, the flame sensors can be used for detecting flame signals and transmitting the flame signals to a collector, the collector outputs a signal to a controller, the controller sends a command to drive a solenoid valve to open, after the solenoid valve is open, high pressure nitrogen in a high pressure nitrogen source is sprayed into the pipeline together with the ABC powder extinguishing agent by means of a pressure relief valve, the solenoid valve and the powder storage pipes, so as to form a high pressure gas-solid two-phase jet curtain to quickly extinguish the flame and prevent the continuous spread of combustion or explosion. By adopting the method, the problem that the existing explosion suppression facilities cannot prevent spread of multiple times of explosion and cannot dilute harmful gases is solved.

The invention discloses a real-time monitoring and active fire extinguishing method and device. The device mainly comprises a TMS (Temperature Management System) series wireless temperature on-line monitoring system and fire extinguishing mobile trolleys; the TMS series wireless temperature on-line monitoring system comprises temperature sensors, a collector, a data storage device and a CPU, wherein the temperature sensors are distributed at various parts of an airplane for collecting the temperature information of the airplane and provide position information through the distribution positions, the CPU analyzes fire disasters and fire risks, and a wireless transmission module transmits signals to the fire extinguishing mobile trolleys when the fire disasters and the fire risks exist; wireless receivers in the fire extinguishing mobile trolleys receive the information, the fire extinguishing mobile trolleys move to the positions and further accurately determine the positions of the fire disasters and the fire risks, telescopic arms of the fire extinguishing mobile trolleys are adjusted so that spraying heads can spray ultrafine water mist towards the positions with the fire disasters and the fire risks for fire extinguishment, the fire extinguishing mobile trolleys return to the initial positions after the fire disasters and the fire risks are eliminated, and then the fire extinguishment task is completed. The TMS series wireless temperature on-line monitoring system continues monitoring the temperature of various parts of an airplane compartment in real time.

The invention relates to an active fire prevention and extinguishing technique of preventing coal self-combustion in goaf, and comprises a temperature control blowout fire prevention and extinguishing ball and a transfer laying equipment. The temperature control blowout fire prevention and extinguishing ball comprises a shell body, a protective wire mesh structure inside the shell body and a fire extinguishing agent filled inside the shell body. The temperature control blowout fire prevention and extinguishing ball is transferred and arranged to a site of an easily self-igniting coal goaf by adopting the transfer laying equipment, when the temperature of a coal goaf rises to a certain degree of temperature, the shell body of the temperature control blowout fire prevention and extinguishing ball bursts on its own, the fire extinguishing agent rapidly scatters and diffuses over the self-igniting zone, the fire hazard is removed in a swamping mode, the temperature control blowout fire prevention-and-extinguishing ball acts as an active fire prevention and extinguishing agent when the coal body in coal goaf has a self-igniting tendency or is at an early stage of combustion. The active fire prevention and extinguishing technique in coal mine goaf is safe and environmentally friendly, low in cost, high in reliability, quick in response and easy in construction deployment, and the problem of self-igniting oxidative inflammation in coal mine goaf is solved.

The invention discloses a building firewall with an active fire extinguishing system and a construction method for the building firewall. The building firewall comprise a core layer arranged in the middle and trigger layers arranged on the two side faces of the core layer. A main fire extinguishing pipeline and an auxiliary fire extinguishing pipeline are arranged in the core layer. Both the main fire extinguishing pipeline and the auxiliary fire extinguishing pipeline are filled with a fire extinguishing medium. The trigger layers are formed by pouring concrete and provided with nozzles and induction units controlling the nozzles, and the nozzles and the induction units extend from the auxiliary fire extinguishing pipeline. According to the building firewall, when a disaster occurs, the trigger layer induction units can trigger the nozzles to spray out the fire extinguishing medium according to the disaster condition, and the active fire extinguishing effect is achieved. According to the scheme, through the construction method of the building firewall, finished products can be produced in a workshop in advance and mounted in a construction field, in this way, the standardized production of the building firewall can be achieved, and the potential safety hazards of the building firewall are obviously reduced.

The invention discloses a coach fire detection, extinguishing and pre-warning system and a method thereof. A lower computer device is arranged on each cabin of a coach; parameter information in the cabins is monitored by the lower computer devices and fire pre-warning grades are generated on the basis of a fuzzy inference rule table; the lower computer devices are in a communication connection with an upper computer by utilizing buses; when the fire pre-warning grade in any cabin reaches the alarm threshold value, the lower computer device in the cabin transfers the pre-warning grade, space information and fault parameter information to the upper computer device; and the upper computer device starts an alarm or fire extinguishing equipment to realize active fire control. The all-dimensional fire monitoring of the whole coach can be realized, the identification scope of fire faults of coaches can be expanded, people' safety can be ensured and the property loss can be reduced. Meanwhile, the fire is judged by the multi-information fusion technology of the fuzzy theory, so that the uncertainity and limitation of fire judgment with a single parameter is avoided and the fire early-warning accuracy of the coaches is improved.

The invention relates to a patrol type intelligent active fire-fighting device, belonging to the technical field of manufacturing of fire-fighting equipment. The device provided by the invention is matched with a wireless remotely-controlled spray head installed at the corresponding place in a room. In a patrol process, when the device provided by the invention detects the condition that a fire occurs, a spray valve at the corresponding place can be remotely controlled immediately to be opened, thereby extinguishing the fire on the site; and on the other hand, an alarm is given to the relevant department through wireless signals. When fire hazards such as unextinguished butts and the like are found, a self-carried spray device can be used for extinguishing fire sources.

The invention relates to fire retardants, and in particular relates to a halogen-free active fire retardant and a preparation method thereof. The method comprises the following steps: under the protection of nitrogen, sequentially adding reactants, namely N-hydroxyethylaniline, 4-hydroxybenzaldehyde and a solvent, into a container equipped with a condensate return pipe and a magnetic stirrer; after a heating reaction, adding DOPO to continue the reaction to obtain a light blue solid deposit; and cooling the deposit, keeping the deposit standing, pouring out the upper-layer solvent, washing the deposit with a solvent, and drying the deposit to obtain the halogen-free active fire retardant. Or the method comprises the following steps: under the protection of nitrogen, sequentially adding the reactants, namely N-hydroxyethylaniline, 4-hydroxybenzaldehyde and a solvent, into a container equipped with a condensate return pipe and a magnetic stirrer; after a heating reaction, adding DOPO to continue the reaction to obtain a light blue solution; and concentrating the solution, and precipitating the solution with a precipitator to obtain the halogen-free active fire retardant. The preparation method is simple, and the halogen-free active fire retardant contains a plurality of kinds of active groups, is well compatible with a matrix and has a good halogen-free flame-retardant property.

A composite system capable of protecting a substrate from a jet fire including a lower layer of an active fire protective material and an upper layer of a fire protective material. The upper layer forms an open cell matrix when exposed to a jet fire to permit passage of gasses from the lower layer to ambient. The upper layer comprises a fill of refractory material and protects the system during initial exposure to a hyperthermal condition. The upper layer swells on exposure to hyperthermal conditions, but swells less than the lower layer.

The embodiment of the invention discloses a device and a fire prevention method. The device comprises a device body, an air inlet, an air outlet, an inlet air temperature detecting device, a control center, an air inlet control device and a cooling air channel, wherein the air inlet and the air outlet are arranged on the device body; the inlet air temperature detecting device is positioned at the air inlet of the device body and used for detecting the temperature value of an air flow entering the device body from the air inlet and sending the temperature value to the control center; the control center is used for judging the temperature value, and sending a shutdown signal to the air inlet control device when the temperature value is larger than a threshold value; the air inlet control device is used for shutting down the air inlet and the air outlet of the device body according to the shutdown signal; and the cooling air channel is positioned at the air inlet of the device body and used for cooling external high-temperature gas and / or flame in a fire disaster when the external high-temperature gas and / or flame enters the device body through the cooling air channel. Due to the active fire prevention design, the fire disaster outside the device can be detected automatically, so that the damage on the equipment caused by the external fire disaster can be avoided.

The invention discloses a safe active guidance escape system of a passenger car. The safe active guidance escape system comprises a glass breaking device and further comprises an alarm device, an active fire recognition device, an active rollover recognition device, an escape guidance indication device, a main alarm and a controller. The glass breaking device can be operated manually. The alarm device is used for prompting the position where the glass breaking device is located and installed on the glass breaking device. The escape guidance indication device is used for prompting the position where an emergency escape door of the passenger car is located. The output of the active fire recognition device and the output of the active rollover recognition device are connected to the controller. The output of the controller is connected to the alarm device, the escape guidance indication device and the main alarm. By the adoption of the safe active guidance escape system, when a disastrous emergency happens to the passenger car, the position of the glass breaking device and the position of the emergency escape door can be prompted, a passenger is guided to break the glass manually and escape in time, and the best escape time is strived for the passenger.

The invention provides a comprehensive fire fighting management platform. Each intelligent fire fighting node comprises a fire behavior sensor group and an active fire extinguishing ball. The fire behavior sensor group acquires current environment parameter information and sends the current environment parameter information to a fire behavior wireless transmission system; the active fire extinguishing ball extinguishes the fire actively by way of an active or linked triggering mode; the fire behavior wireless transmission system receives the environment parameter information of each intelligent fire fighting node; an intelligent fire fighting management system of a building estimates fire hidden dangers of the positions of the intelligent fire fighting nodes to generate corresponding escape and rescue channels and fire extinguishing strategies according to the environment parameter information of the intelligent fire fighting nodes; a fire fighting intelligent cloud platform acquires the environment parameter information of the intelligent fire fighting nodes, an estimating result of the fire hidden danger, a fire behavior analyzing result and the escape and rescue channels and fire extinguishing strategies to monitor the fire fighting states of the whole region in real time. The comprehensive fire fighting management platform provided by the invention is low in construction cost as a result of wireless transmission. The comprehensive fire fighting management platform integrates many advanced technologies at present, so that relatively high earnings can be achieved.

Methods and apparatus for passive non-electrical dual stage fire suppression according to various aspects of the present invention include detecting a fire with a first active fire suppressant unit and changing the status of a second fire suppressant unit from “stand-by” to “active” when the first fire suppressant unit releases a fire suppressant agent. After the first fire suppressant unit has released its fire suppressant agent, the second fire suppressant unit may detect a continued and / or a new fire and release a second fire suppressant agent in response to the detection.

A display provides optimized situational awareness to firefighting command personnel within a wildfire theatre. Lidar scanning data provides a digital elevation map of the wildfire theatre for the display. Geographic features such as lakes, roads, power lines and structures can be overlaid on the display. Lidar data utilizing multiple reflection signatures can be interpreted to represent fuel density and / or canopy height and such information can also be included upon the display. A burn area and active fire edge can be sensed by infrared scanner data and overlaid upon the display. The display can be utilized for input of firefighting command instructions, such as in the form of vectors or other annotations placed upon the display and correlated with airborne firefighting resources to be dropped at designated locations. Data provided to the display can be periodically updated to reflect the current situation. Firefighting resources are thus most effectively assigned.

The invention discloses a distributed active fire extinguishing system for a railway vehicle. The system comprises radiation type smoke and fire detection probes, spray heads, a water storage tank, anitrogen cylinder, an electromagnetic valve and a controller, wherein the number of radiation type smoke and fire detection probes and the spray heads which correspond one-to-one are the same; the radiation type smoke and fire detection probes are connected with the controller through cables, the spray heads are connected with the water storage tank and the nitrogen cylinder which are installed below the vehicle through a steel pipeline and the electromagnetic valve, and the electromagnetic valve is further connected with the controller at the same time; and the active controller is connectedwith a train network system, and is used for transmitting a temperature field in a guest room to the train network system and displaying the temperature field on a driver display screen, the controller controls the water storage tank and the nitrogen cylinder through the electromagnetic valve, water and nitrogen gas are filled into a steel pipe, the controller sprays high-pressure fine water mistto an ignition position by starting the corresponding spray heads, so that the active fire extinguishing is completed. According to the method, the accurate active fire extinguishing can be realized at an early stage when fire behavior is occurred, and a large amount of smoke generated during the fire can be sucked, a fire extinguishing agent is the water, and secondary damage caused to passengersand vehicles in the guest room does not happen.

The invention discloses a steel structure active fire retardant coating which comprises the following components in percentage by weight: 1-10% of ceramic powder material, 30-48% of acrylic resin, 15-23% of ammonium polyphosphate, 9-15% of pentaerythritol, 7-11% of melamine, 1-5% of titanium dioxide and 12-22% of solvent gasoline No.200. A preparation method provided by the invention is simple, and the fire retardant coating is prepared by adding a certain amount of ceramic powder material with bioactivity function based on the existing fire retardant coating. Because the ceramic powder material has activation function, the activity of the coating is improved, so that the fire retardant coating has better fire endurance performance than the existing fire retardant coating, and the required coating thickness is also thinner.

The invention discloses a nitrogen injection and oxygen control active fire prevention system. The nitrogen injection and oxygen control active fire prevention system comprises a nitrogen supply device, a control module and at least one fire prevention protective space; the nitrogen supply device introduces nitrogen into the fire prevention protective space; and the control module comprises a main controller, an oxygen concentration upper limit module, an oxygen concentration lower limit module, an alarming controller and an alarming device. The using method of the nitrogen injection and oxygen control active fire prevention system includes the following steps that firstly, a threshold is set; secondly, nitrogen is input; thirdly, the concentration value of oxygen in the fire prevention protective space is detected; and fourthly, the oxygen concentration value is judged. The nitrogen injection and oxygen control active fire prevention system accurately achieves the condition of guaranteeing safety in real time, plays an active fire prevention effect and guarantees the safety of the environment, personnel and property.

The invention discloses a low-space micro flame spectrum automatic scanning fire extinguishing system and a fire extinguishing device. The system consists of a fire extinguishing device, a scene control box and a control main machine; the fire extinguishing device, the scene control box and the control main machine are in communication connection through RS485; the fire extinguishing device is lifted in air above an area needing to be protected; a rotating shaft, a micro motor, a water outlet block and an infrared-ultraviolet compound detecting tube are arranged on the fire extinguishing device; a water inlet is formed in the rotating shaft, and is connected to the water outlet block; the infrared-ultraviolet compound detecting tube detects an open fire state through light speed particles;the micro motor drives the water outlet block to rotate for fire extinguishing; a fire source is accurately locked to achieve the purposes of early active detection of fire, early active alarm and early active fire extinguishing; and meanwhile, the mounting and use cost of fire pipes is saved.

The invention discloses an active fire extinguishing device. The active fire extinguishing device comprises a box body, a box cover, a switching assembly and a fire extinguishing medium carrier. The box body is provided with an opening. The box cover is connected with the box body so as to open and close the opening. The switching assembly is connected with the box body and the box cover. The switching assembly comprises a memory alloy piece with the volume capable of being changed along with temperatures. The memory alloy piece can drive the box cover to move so as to open the opening when the temperature of the memory alloy piece reaches a preset value. The fire extinguishing medium carrier is movably arranged inside the box body so that the fire extinguishing medium carrier can drop off from the box body when the opening is opened. According to the active fire extinguishing device in the embodiment of the invention, active fire extinguishing can be achieved, no manual fire extinguishing is required, and household safety is improved; and moreover, the active fire extinguishing device is low in cost during implementation, and the using reliability is higher.

The invention discloses a cable combustion fire simulation system for a full-size underground space. The system comprises a channel main body steel frame structure, and an L-shaped cable channel structure, a smoke exhaust system, a fire extinguishing system, a combustion system, a monitoring system, a smoke pipe testing system, an analysis control system, a calibration and adjusting system and a combustion waste gas treatment system which are sequentially connected; and the L-shaped cable channel structure is fixed on the channel main body steel frame structure. The system and a method for simulating a cable combustion fire scene in the underground space by using the system can conveniently research cable fire in the underground space and the cable fire, thereby researching the fire spreading mechanism under various working conditions, effectively protecting an underground cable channel, carrying out the research of active fire extinguishing early warning, eliminating potential safetyhazards and reducing the economic loss caused by the cable fire.

The invention relates to an extremely-early-period automatic fire extinguishing device and an extremely-early-period automatic fire extinguishing integrated machine. A detection module, a control module and a fire extinguishing module are included. The detection module comprises an air suction pump and a detection chamber and further comprises a smoke detector and a CO detector which are arrangedin the detection chamber. The smoke detector and the CO detector detect the smoke particle concentration and CO content in the smoke correspondingly. The control module sends out fire extinguishing signals when the smoke particle concentration and / or the CO content exceed / exceeds the standard, a valve is controlled to be opened, and a fire extinguishing agent is released from a releasing pipe so that the fire source can be extinguished. The active fire disaster detection technology is adopted in the extremely-early-period automatic fire extinguishing device and the extremely-early-period automatic fire extinguishing integrated machine, extremely-early-period automatic detection, automatic fire disaster confirmation and automatic fire extinguishing can be achieved, the fire disaster hiddendanger is eliminated in the smoldering stage, the incidence rate of the fire accident is greatly reduced, and life and property safety of people is effectively guaranteed.