10results about How to "Prevent re-ignition" patented technology

The invention relates to the technical field of intelligent fire rescue, and discloses a small self-sensing intelligent special vehicle and a control method.The small self-sensing intelligent special vehicle is characterized in that a plurality of supporting foot devices are connected to the outer side face of a lower bottom plate, a gearbox is connected to the terminal of the top of the lower bottom plate, plunger pumps are connected to the output ends of the gearbox, and the number of the plunger pumps corresponds to that of the supporting foot devices; the top of the upper top plate is connected with a recognition device, and a spraying device corresponding to the fire extinguishing agent storage box is arranged at the front end of the top of the upper top plate; one side of the top end of the middle plate is connected with a fire extinguishing agent storage box, and the middle end of the top face of the middle plate is connected with a steering assembly. According to the device, the change of a fire source can be recognized in time in a complex environment, and accurate and effective fire extinguishing measures are taken. According to the device, a brand new thought and method are brought to forest fire fighting, the fire source checking and extinguishing efficiency is improved, secondary reburning of the fire is avoided, and the overall safety and emergency response capacity of fire fighting operation are improved.

This utility model belongs to the technical field of fire-fighting equipment, and particularly relates to a multi-functional foam gun. It includes a first gun body, a primary foaming tube, a connector assembly, a secondary foaming tube, and a foam net holder. The primary foaming tube is installed at the front end of the first gun body, and the secondary foaming tube is installed at the front end of the primary foaming tube via the connector assembly. The foam net holder is installed at the outlet of the secondary foaming tube. The outer wall of the primary foaming tube is surrounded by several first suction holes, which are perpendicular to the central axis of the primary foaming tube. The outer wall of the secondary foaming tube is surrounded by several second suction holes, which are parallel to the central axis of the secondary foaming tube. This utility model uses a secondary negative pressure suction method combined with a foam net to achieve a final foaming ratio of 20 times for the foam extinguishing agent. In this state, the foam extinguishing agent has a low water content, low impact force, and short range, making it suitable for close-range coverage of fire sources, effectively extinguishing fires and preventing reignition.

This utility model discloses a fire suppression device for a nickel-metal hydride (NiMH) battery box under a train, including a box for housing the NiMH battery and a multi-parameter detector and a fire extinguishing device disposed within the box. The wiring terminals of the NiMH battery are located on the top of the NiMH battery body. The multi-parameter detector includes a housing and a smoke detector, a temperature detector, an H2 detector, and a CO detector located within the housing. The housing is fixed to the inner wall of the top plate of the box and is positioned facing the wiring terminals of the NiMH battery. The nozzle of the fire extinguishing device is positioned facing the NiMH battery. This utility model also provides a fire suppression system for a NiMH battery box under a train, including the aforementioned fire suppression device for a NiMH battery box under a train. By adopting the above technical solution and using a multi-parameter detector, the accuracy and response speed of early fire identification are significantly improved.

The utility model provides an excitation fuse, a battery pack and electric equipment. Relates to the technical field of circuit protection. The excitation fuse comprises a shell, an excitation cut-off assembly, a conductor and a melt. An accommodating cavity is formed in the shell; the excitation cutting-off assembly is located in the containing cavity and provided with a cutting-off end. Part of the conductor is positioned in the accommodating cavity; the melt is located in the containing cavity and connected with the conductor in parallel. The melt is provided with a melt breaking part, and the melt breaking part is opposite to the cut-off end. The cut-off end is used for sequentially cutting off the conductor and the fuse breaking part. A first arc extinguishing cavity is further formed in the shell, the first arc extinguishing cavity is filled with a first insulating medium, and the fuse breaking part is located in the first arc extinguishing cavity. According to the excitation fuse provided by the embodiment of the invention, the arc extinguishing efficiency is improved, the safety and reliability of the whole excitation fuse are improved, and the safety of a battery pack and electric equipment is improved.

A kind of new energy vehicle quick fire extinguishing device of rotary telescopic, including rotary telescopic fire extinguishing cover device, the fire extinguishing cover device includes flame-retardant fabric, flame-retardant fabric inside cladding connection rotary telescopic framework, the rotary telescopic framework is hollow pipe structure, hollow pipe structure connects fire water spray head and fire water connector, the surface of the flame-retardant fabric is provided with pressure relief skylight, the bottom of the fire extinguishing cover device is provided with water-blocking fence around new energy vehicle, water-blocking fence and new energy vehicle between the fire water that accumulates fire water spray head sprays forms water pool and soaks new energy vehicle.The utility model new energy vehicle quick fire extinguishing device of rotary telescopic is through fire extinguishing cover device on the basis of portable and fast cladding entire car realizes air insulation, then telescopic framework multi-angle injection fire extinguishing, and water-blocking fence forms the soaking fire extinguishing performance to car, finally pressure relief skylight prevents the explosion risk caused by gas accumulation.

The application discloses a multi-dose multi-scene intelligent mobile fire extinguishing device and a disposal method, relates to the technical field of fire-fighting equipment, and aims to solve the problems of limited coverage, single medium, low monitoring precision, poor scene adaptation and insufficient intelligent linkage of existing fire-fighting equipment. The device comprises a rigid-flexible modular combined track, a mobile fire extinguishing host, a multi-dose storage system, an anti-shielding monitoring mechanism, a power supply protection system and an intelligent control module, integrates three types of core fire extinguishing media, and is adapted to eight typical fire scene scenarios. The method is based on a multi-parameter fusion algorithm, realizes fire condition grading identification, multi-dose accurate selection and full-chain closed-loop disposal. The recrudescence inhibition rate of the application is greater than or equal to 99%, and the average response time is less than or equal to 15 seconds. The application has the advantages of modular structure, strong adaptability, convenient operation and maintenance, effectively solves the problems of poor universality and low disposal efficiency of existing equipment, and provides reliable technical support for fire safety in multiple fields.

The application discloses a gravity-assisted submerged water fire extinguishing system for battery replacement cabinet and a control method, and belongs to the technical field of fire safety of battery replacement cabinet, which comprises a battery replacement cabinet, a water storage tank, a battery compartment, a fire-fighting pipeline and an internal module, the water storage tank is installed on the top of the battery replacement cabinet and is higher than the battery compartment, a water outlet at the bottom is sequentially connected with a liquid level sensor one, a flow sensor and a water pump through the fire-fighting pipeline, the battery compartment is provided with a fire-fighting nozzle, a temperature sensor and a liquid level sensor two, and the top is provided with a water overflow outlet and / or a steam outlet, the internal module comprises a fire-fighting control panel and a central control panel, the fire-fighting control panel is electrically connected with each sensor and water pump and communicates with the central control panel, and the system control method comprises the steps of system initialization, nozzle self-explosion, signal detection, fire determination, pressure boosting water injection and water level control. The application adopts a water supply mode combining gravity self-flow and water pump pressure boosting, realizes rapid submerged fire extinguishing when the battery is out of control, reduces the false alarm rate and improves the fire-fighting reliability of the battery replacement cabinet.

The invention relates to the technical field of fire fighting systems, in particular to a superfine water mist fire retardance and explosion suppression device, a fire retardance and explosion suppression method and a fire retardance and explosion suppression system. The superfine water mist fire retardance and explosion suppression device comprises a high-pressure airflow injection unit, a water mist spraying unit, a high-pressure water flow injection unit and a charging unit. The water mist spraying unit is arranged on the high-pressure airflow injection unit and is connected with the air outlet end of the high-pressure airflow injection unit; the water outlet end of the high-pressure water flow injection unit extends to be arranged in the high-pressure air flow injection unit and is connected with the water mist spraying unit; the charge unit is arranged on the high-pressure airflow injection unit and externally connected with high-voltage alternating current, and the charge unit is used for applying high-voltage charges to the superfine water mist sprayed by the water mist spraying unit. According to the invention, the superfine water mist with smaller particle size can be obtained, so that the defects of the water mist in the prior art are overcome.

This invention discloses a battery module, a cluster-level initial thermal runaway prevention device and method, comprising: a battery cluster support with a base mounted on its bottom; battery modules, wherein several groups of battery modules are evenly spaced on the battery cluster support, and elastic connectors are mounted on the outer side of the battery modules; a tensile force detection module mounted on one of the elastic connectors; a pressure detection module mounted on the base; a thermal aerosol fire extinguisher, comprising a thermal aerosol generating component and a cooling component, wherein the cooling component is installed inside the battery module, and the thermal aerosol generating component is installed inside the cooling component; and a data acquisition unit connected to the tensile force detection module and the pressure detection module. This invention solves the problem of delayed early warning in traditional devices, allowing sufficient time for subsequent prevention operations and reducing the risk of further spread of thermal runaway.