36results about How to "Reduce oxygen concentration" patented technology

The invention relates to the technical field of cable wires, and discloses a high-flame-retardant cable wire and a preparation method thereof. Comprising the following cable raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 30-40 parts of low-density polyethylene, 20-35 parts of modified nano magnesium hydroxide, 2-4 parts of an ultraviolet light initiator, 0.5-5 parts of a phosphorus-nitrogen flame-retardant assistant crosslinker, 0.5-1.2 parts of an antioxidant and 1-2 parts of a lubricant. Vulcanizing by a press vulcanizer, carrying out ultraviolet irradiation crosslinking, and extruding into a wire rod by an extruder. After the phosphorus-nitrogen flame-retardant assistant cross-linking agent and the modified nano magnesium hydroxide are cross-linked with the ethylene propylene diene monomer, the polyethylene and the like, a flame-retardant effect is achieved through synergistic cooperation, so that the prepared cable wire has relatively good flame-retardant property and relatively good mechanical property, is low-smoke, halogen-free, safe and environment-friendly, and is suitable for large-scale industrial application.

The modularized fire extinguishing capsule comprises a hoop body and swallow-tail-shaped embracing arms integrally formed on the left outer wall and the right outer wall of the hoop body, and a fire extinguishing capsule body filled with liquid carbon dioxide is installed on the outer wall of the side, away from the hoop body, of each swallow-tail-shaped embracing arm. A one-way valve used for being filled with liquid carbon dioxide is installed at the top end of the fire extinguishing capsule body, and a fire sprinkler is installed at the bottom end of the fire extinguishing capsule body. According to the fire extinguishing capsule, the specially designed hoop body is installed on a forest tree, when the temperature of a fire source rises, the glass tube at the bottom end of the fire extinguishing capsule can cause the thermosensitive liquid to expand and crack due to temperature rise, and therefore liquid carbon dioxide in the capsule makes contact with outside air, is gasified and is sprayed out through the spray head; by means of the automatic triggering mechanism, the fire extinguishing process is more intelligent and does not depend on manual intervention, and the risk of firefighters is greatly reduced.

This application provides a display panel, its manufacturing method, and an electronic device. The manufacturing method includes sequentially fabricating an array of anode layers on one side of a substrate; fabricating a pixel definition layer covering the substrate and the peripheral areas of each anode layer, such that the pixel openings of the pixel definition layer expose the central area of ​​the anode layer; and forming a polymer film on the surface of the pixel definition layer away from the anode layer under first design conditions, where the first design conditions include oxygen. In this application embodiment, the formation of the polymer film requires oxygen consumption, which helps reduce oxygen infiltration, thereby reducing the oxygen concentration on the anode surface, thus reducing the surface voltage of the display panel and improving its lifespan.

An object of the present invention is to provide a pure copper or copper alloy powder for use in additive manufacturing using a laser beam system, and which is capable of increasing the laser absorptance and simultaneously decreasing the oxygen concentration in an object. Provided is a pure copper or copper alloy powder with an oxide coating, wherein the oxide coating contains carbon, and a ratio of the oxygen concentration to the carbon concentration ((oxygen concentration) / (carbon concentration)) is 5 or less.

This invention discloses a low-temperature carbon dioxide high-expansion foam dust suppression system and method for ore pass unloading. The dust suppression system includes a first high-expansion foam generator and a second high-expansion foam generator at the ore pass unloading port and ore bin, respectively. A foaming dust suppressant is mixed with inert carbon dioxide gas and a sulfide ore inhibitor to create foam with both dust suppression and ore spontaneous combustion inhibition properties. Because the foam contains an ore inhibitor, the spontaneous combustion tendency of ore dust upon contact with the foam is effectively reduced. Simultaneously, after the foam bursts, the low-temperature carbon dioxide gas within it lowers the ambient temperature and oxygen concentration within the ore pass, creating a low-temperature, low-oxygen environment and reducing the risk of ore spontaneous combustion and agglomeration within the ore pass. Furthermore, the low-temperature carbon dioxide generates natural convection, inducing airflow within the ore pass and accelerating foam diffusion. Therefore, this invention's low-temperature carbon dioxide high-expansion foam dust suppression system achieves synergistic prevention and control of dust and ore spontaneous combustion within the ore pass.

This invention relates to a hyperbaric oxygen chamber system with adjustable oxygen concentration. The system includes a main unit and a chamber. The main unit comprises a main control module, an oxygen regulation module, and a pressure regulation module, all electrically connected to the main control module. The pressure regulation module includes a low-oxygen air regulation submodule and a pressure-maintaining air submodule. The pressure-maintaining air submodule includes a first air compressor, a pressure relief valve, and a first sensor. The oxygen regulation module includes a second air compressor, a separation valve, a molecular sieve tower, a flow-limiting valve, and a vacuum pump. The low-oxygen air regulation submodule includes a three-way valve and a one-way valve. This invention's adjustable oxygen concentration hyperbaric oxygen chamber system can reduce the production cost of hyperbaric oxygen chamber systems, improve the user experience, and allow the oxygen concentration within the chamber to be adjusted below that of air, thus expanding its application to low-oxygen training and testing environments.

The application discloses a storage cabinet and an energy storage device, and relates to the technical field of fire fighting, wherein the storage cabinet comprises a cabinet body and at least one shell assembly, at least one first cavity is arranged in the cabinet body; the shell assembly is arranged in the first cavity, and the inside of the shell assembly is provided with a second cavity for mounting a battery structure; the first end of a first gas flow channel of the shell assembly is communicated with the first cavity, and the second end of the first gas flow channel is communicated with the outside of the cabinet body; a rotatable baffle structure is arranged in the first gas flow channel, and the baffle structure is used for shielding the first gas flow channel; the third end of a second gas flow channel is communicated with the first cavity, and the fourth end of the second gas flow channel is communicated with the inside of the shell assembly; the outer surface of a plugging piece is abutted against the inner wall surface of the second gas flow channel; the battery structure presses the first elastic piece to move the plugging piece towards the second end of the second gas flow channel and form a gap. The technical scheme provided by the application controls the oxygen concentration in the first cavity, so that the fire extinguishing efficiency is improved.

The invention relates to the technical field of new energy automobile charging equipment, and discloses a new energy automobile mobile charging robot which comprises a mobile chassis, a box shell is fixedly mounted at the top of the mobile chassis, a damping base is fixedly mounted at the inner bottom of the box shell, and a plurality of battery grooves are uniformly formed in the surface of the damping base; storage battery packs are fixedly mounted on the surfaces of the battery grooves correspondingly, a heat conduction plate is fixedly mounted at the bottom of the damping base, polished rods are movably mounted on the front side and the rear side of the inner bottom of the movable chassis correspondingly, and a plurality of flame-retardant outer plates are movably mounted on the outer diameters of the polished rods correspondingly; and flame-retardant inner plates are movably mounted in the flame-retardant outer plates through push-out springs. Mobile flexible charging is achieved, dual safety protection of waste heat self-driven efficient heat dissipation, nitrogen fire extinguishing and flame-retardant blocking is achieved, the advantages of being convenient and fast to operate, high in energy utilization rate, reliable in structure and the like are achieved, and the charging stability and safety are greatly improved.

The utility model provides a flame-retardant assembly and a traveling cable, and relates to the technical field of traveling cables. The flame-retardant assembly comprises a protective layer, a plurality of filling cavities are formed in the protective layer, the filling cavities are all filled with gas fire extinguishing media, and the gas fire extinguishing media are discharged when a fire breaks out to achieve flame retardance. The multiple filling cavities are formed in the protective layer, the filling cavities are filled with the gas fire extinguishing media, and when a fire disaster occurs, the protective layer is heated to be broken, so that the gas fire extinguishing media in the filling cavities are discharged, the oxygen concentration in air is reduced, the flame-retardant purpose is achieved, and then spreading of the fire behavior can be reduced; the weight of the protective layer is reduced due to the arrangement of the filling cavity, and the gas fire extinguishing medium is lighter than a traditional flame-retardant material, so that the increase of the overall weight is reduced.

The application provides a kind of ducted air conditioner and the health detection method of ducted air conditioner, air detection device is arranged in ducted air conditioner, air detection device is arranged in the air duct of ducted air conditioner, for detecting oxygen concentration in air;Method includes: in standby state of ducted air conditioner, air detection device detects the first oxygen concentration value in the air duct of ducted air conditioner;Start ducted air conditioner;In the running state of ducted air conditioner, air detection device detects the second oxygen concentration value in the air duct of ducted air conditioner;By comparing the first oxygen concentration value and the second oxygen concentration value, to judge whether ducted air conditioner has cleaning needs;The first oxygen concentration value is lower than the second oxygen concentration value, and the difference between the first oxygen concentration value and the second oxygen concentration value exceeds the first preset difference, then judge ducted air conditioner has cleaning needs.The technical scheme of the application can assist the user to accurately control the cleaning time of ducted air conditioner, improve the use experience of ducted air conditioner.

The present application belongs to the technical field of electrochemical gas separation and purification, and particularly relates to a flat-plate solid oxide oxygen ion conductor membrane reactor, a preparation method and application, and is particularly suitable for removing trace oxygen impurities; the solid oxide oxygen ion conductor membrane reactor adopts LSGM electrolyte, and composite material BSCF-SDC is used as the cathode and the anode; the membrane reactor can realize high removal of trace oxygen in argon under the condition of 750-900 DEG C and 1-2.0 V, so that the oxygen content can be lower than 10 ppm; the membrane reactor has the advantages of low energy consumption, high stability, no secondary pollution and the like, and is suitable for preparation of high-purity argon in the fields of semiconductor manufacturing, metal smelting and the like.

The application relates to the field of outdoor communication cabinets, and discloses a high-strength explosion-proof outdoor communication cabinet which comprises a protection mechanism and an explosion-proof mechanism, the explosion-proof mechanism is fixedly installed in the interior of the protection mechanism, the interior of the explosion-proof mechanism is provided with a transmission part, one side of the transmission part is slidably provided with a second communicating part, the other side of the transmission part is slidably provided with a first communicating part, the top center of the transmission part is fixedly provided with an adjusting part, the interior of the adjusting part is provided with a positioning support, the interior center of the positioning support is fixedly provided with a driving motor, the bottom center of the driving motor is fixedly connected with a threaded rod, the explosion-proof mechanism is installed in the interior of the protection mechanism, the oxygen concentration in the interior of the communication cabinet can be quickly reduced, the communication cabinet can be protected from power-off, and explosion accidents of the communication cabinet can be avoided.

The utility model relates to the technical field of lithium battery production auxiliary equipment, in particular to a flame-retardant storage device for lithium battery raw materials, which comprises an inner box body, a left inner box door and a right inner box door which are mutually symmetrical are hinged on the front side face of the inner box body, a gas suction pump is arranged outside the inner box body, and a suction pipe is fixedly mounted at the gas inlet end of the gas suction pump. The suction pipe extends into the inner box body, a nitrogen generator and a gas delivery pump are further arranged outside the inner box body, the gas inlet end of the gas delivery pump is communicated with the nitrogen generator through a gas inlet pipe, a gas outlet pipe is fixedly installed at the gas outlet end of the gas delivery pump, and a left uniform distribution pipe and a right uniform distribution pipe are fixedly installed on the gas outlet pipe; the two uniform distribution pipes are fixedly installed on the inner walls of the left side and the right side of the inner box body respectively, and air outlet ends are fixedly installed at the bottom ends of the uniform distribution pipes and fixedly installed on the bottom wall of the inner box body. The lithium battery has the advantage of flame-retardant storage, and combustion reaction of raw materials of the lithium battery is effectively inhibited.

A liquid-containing combination container includes a first container that contains a liquid, a second container that contains the first container and that has an oxygen barrier property, and an oxygen absorber that absorbs oxygen in the second container. The first container includes a container body that includes an opening portion and a stopper that closes the opening portion, the stopper has oxygen permeability.

The invention provides a micro-pressure oxygen-enriched health preserving cabin, and mainly relates to the field of oxygen-enriched health preserving equipment. A micro-pressure oxygen-enriched health preserving cabin comprises a cabin body assembly, an oxygen generating assembly and the like. The device has the beneficial effects that the closed cabin body and the oxygen generator are arranged to convey oxygen into the cabin body for pressurization, and the oxygen is further uniformly conveyed into the closed cabin body through the silent fan, so that oxygen-enriched gas with the oxygen content higher than that of ambient air is breathed in the closed cabin body; the top cover of the micro-pressure oxygen-enriched health preserving cabin device can be controlled to be quickly opened through the hydraulic cylinder, a large amount of air is introduced into the cabin body by changing the direction of the fan at the same time to reduce the oxygen concentration, the risk generated after oxygen poisoning is generated in the using process of personnel is reduced, and the safety of the device is improved; by arranging the embedded retractable door, the leakproofness of the door is improved, internal pressurized oxygen is prevented from being leaked, and furthermore, after a person finishes use, the retractable door can be opened slowly, so that the internal pressurized environment can be exhausted slowly for pressure reduction.

The utility model belongs to high flame -retardant cable technical field, concretely is a kind of high flame -retardant cable with chlorinated polyethylene outer sheath, including filler layer, the inside fixedly connected with wire core of filler layer, the outside fixedly connected with impact resistance layer of filler layer, the outside fixedly connected with temperature insulation layer of impact resistance layer, the outside fixedly connected with tensile layer of temperature insulation layer, the outside fixedly connected with outer sheath of tensile layer.The utility model is provided with impact resistance layer, it is favorable to improve the impact resistance of cable, when cable is impacted, outer cover can extrude bellows, by extrusion, bellows is shrunk, when shrinking, the gas in bellows is extruded, the gas is extruded and generates reverse force, to prevent external force continue to intrude into the inside of cable, ensure cable inside intact, prolong the service life of cable.

This utility model discloses a yellow phosphorus tail gas combustion system that reduces the generation of acidic substances, belonging to the field of phosphorus chemical processing technology. It solves the problems of high cost, inefficiency, poor stability, and easy secondary pollution associated with existing technologies. The system includes three sequentially connected modules: tail gas pretreatment, combustion, and purification, forming a complete treatment pathway. The pretreatment module uses a centrifugal fan to transport the tail gas, a spray-filter desulfurization tower to remove sulfides, and a high-pressure backflush pipe to ensure stable airflow. The combustion module optimizes the air-fuel ratio, combines flue gas circulation and parameter monitoring to suppress nitrogen oxide generation, and is adapted to boiler waste heat utilization. The purification module is equipped with a waste heat recovery device before electrostatic precipitator to remove impurities. The system achieves desulfurization liquid regeneration and circulation, reduces equipment corrosion and treatment costs, ensures that exhaust gas emissions meet standards, and balances environmental protection and energy utilization efficiency.

The utility model relates to rare earth hydrogen storage alloy or quick -setting neodymium iron boron alloy smelting auxiliary equipment technical field, specific, relate to a kind of rare earth metal powder explosion -proof dust collecting device, including shell, filter bag chamber, backflush mechanism, dust-containing gas inlet, purified gas outlet, still include inert gas supply gas path, explosion suppressor, explosion vent. Nitrogen gas path is introduced on the one hand reduces the oxygen content in dust collecting device, makes oxygen concentration reduce, reduces the oxidation reaction of rare earth metal, reduces the generation of heat. On the other hand, nitrogen in nitrogen gas path low pressure gas path is obtained by high-pressure liquid nitrogen throttling pressure reduction, temperature is lower, it is favorable to reduce the temperature in dust collecting device. The introduction of nitrogen gas path greatly reduces the explosion risk, this is the conventional working process. By introducing explosion suppressor, explosion vent, cooling can be carried out when temperature is too high and pressure relief after explosion, to slow down the progress of explosion and protect the entire device after explosion.

The application discloses a boiler air distribution control method, device, system and boiler system. In the application, the oxygen concentration of the water cooling wall near-wall area of the boiler system is not lower than a preset value, and the target wall-adhesion air distribution scheme corresponding to the current alkali metal concentration data is determined from the preconfigured wall-adhesion air distribution schemes by acquiring the current alkali metal concentration data, and the wall-adhesion air subsystem is controlled to work according to the target wall-adhesion air distribution scheme, so that the possibility of the oxygen concentration of the water cooling wall near-wall area being too low can be reduced to a certain extent, and the reducing atmosphere of the water cooling wall near-wall area can be inhibited to a certain extent, and the corrosion degree of the water cooling wall caused by the gas-phase alkali metal can be reduced.

The invention relates to the technical field of high-low voltage power distribution cabinets, in particular to a high-low voltage power distribution cabinet with a protection structure, which comprises a cabinet body, a cabinet door is rotatably mounted on the front side surface of the cabinet body, an inner frame is fixedly connected to the front inner wall of the inner cavity of the cabinet body, the side surface of the cabinet door is in contact with the side surface of the inner frame, and a closed groove is formed in the side surface of the cabinet body. A closed groove is formed in the top of the cabinet body, the closed groove penetrates through heat dissipation holes in the side face of the cabinet body, a nitrogen discharging mechanism is installed at the top of the cabinet body, and a sealing mechanism used for sealing the heat dissipation holes is installed at the top of the cabinet body. Therefore, the air in the dead angle area in the cabinet body is stirred, the air enters the flowing air flow to be pumped away, the more uniform air pumping effect is achieved, the effect of reducing the oxygen content in the cabinet body is achieved, the fire behavior in the cabinet is inhibited or extinguished in time, and fire expansion is avoided.

The invention relates to a conductive MPPO material based on carbon fibers and a preparation method of the conductive MPPO material, and belongs to the technical field of high polymer materials. The conductive MPPO material based on the carbon fibers comprises the following components in parts by weight: 40-70 parts of PPO resin, 10-30 parts of polystyrene, 5-20 parts of a modified flame retardant, 2-10 parts of a modified flexibilizer, 0.1-5 parts of an antioxidant, 0.5-2 parts of a lubricant and 5-15 parts of the carbon fibers, benzoxazine in the modified flame retardant forms a carbon layer, oxygen and heat are isolated, non-combustible gas is released, combustion is retarded, the high glass transition temperature endows heat resistance, and polydopamine cooperates with phosphorus and nitrogen to interrupt a combustion chain; flexible phenoxy in the modified flexibilizer enhances the toughness, maleimide and silica improve the impact resistance, and a flexible silica chain segment improves the tensile strength; the carbon fiber-based conductive MPPO material prepared by the invention not only has good conductive and impact-resistant effects, but also has excellent heat resistance and flame retardance.

This utility model relates to the field of cold chain logistics equipment technology, and in particular discloses an energy-saving cold storage negative pressure micro-ecological controlled atmosphere preservation cabinet, including an insulated cabinet body. The interior of the insulated cabinet body is divided into a cold storage chamber and a control chamber by a partition. A negative pressure pump is installed above the insulated cabinet body to remove air from the cold storage chamber. A refrigeration unit is fixed above the insulated cabinet body to cool the cold storage chamber. An air duct is fixed to the top of the cold storage chamber, and several ventilation holes are evenly arranged along the length of the sidewalls and bottom of the air duct. A static pressure box connected to the air duct is fixed in the control chamber. The air inlet of the static pressure box is connected to a cold air blower and a hot air blower via Y-type connectors. The beneficial effects are: through three core mechanisms—forced permeation precooling driven by negative pressure, closed-loop microenvironment humidification, and multi-factor dynamic synergistic controlled atmosphere—it completely solves the pain points of slow precooling, excessive water loss, and difficult atmosphere control in traditional preservation technologies, effectively improving the preservation efficiency of fruits and vegetables.

The utility model discloses anti-corrosion treatment equipment for a transformer shell, which comprises a protective shell, a plurality of radiating fins are mounted on the outer surface of the protective shell, a supporting component is mounted on the bottom surface of the protective shell, a transformer body is mounted in the protective shell, and a mounting component is mounted on the back surface of the protective shell. An exhaust assembly, a detection controller and an anti-corrosion assembly are installed in the installation assembly. According to the device, the exhaust assembly and the anti-corrosion assembly are installed in the installation assembly on the back face of the protective shell, air in the shell can be pumped out, the protective shell is filled with inert gas in a high-pressure gas storage cylinder, the oxygen concentration in the protective shell is reduced, the corrosion process of the device can be slowed down through the inert gas, and the service life of the device is prolonged. And the protective shell is regularly maintained and checked, so that the corrosion phenomenon on the shell can be found and treated in time, and the problem that the interior of the transformer is easily corroded by an existing device is effectively solved through the device.

The invention relates to the technical field of fire extinguishing agents special for lithium ion batteries, in particular to a sol-gel fire extinguishing agent for lithium ion batteries and a preparation method of the sol-gel fire extinguishing agent, and the sol-gel fire extinguishing agent is formed by taking silica gel as a framework and inclusion of melamine-formaldehyde resin and urea-diammonium hydrogen phosphate microcapsules in the framework. The preparation method comprises the following steps: S1, synthesizing a melamine-formaldehyde resin prepolymer; step S2, synthesis of a melamine-formaldehyde resin coated urea-diammonium hydrogen phosphate microcapsule; and S3, synthesizing the sol-gel fire extinguishing agent for the lithium ion battery. The sol-gel fire extinguishing agent prepared through the method is stable at the normal temperature, the fire extinguishing agent rapidly absorbs heat and cools the temperature at the high temperature, the fire extinguishing agent is decomposed to release a large amount of smoke composed of water vapor, ammonia gas, CO2, SiO2 aerogel and the like, a polyphosphoric acid diaphragm is generated, the oxygen concentration in air is reduced, an isolation layer for air mass transfer and heat transfer is formed, and the fire extinguishing effect is improved. And the efficient and rapid fire extinguishing effect on the lithium ion battery is achieved.

The utility model discloses a kind of high-temperature-resistant anticorrosive boiler equipment, specifically related to boiler equipment technical field, including combustion furnace, combustion furnace inside is equipped with grate, combustion furnace inside is equipped with furnace body, combustion furnace inside and grate outside are all provided with high-temperature-resistant layer, high-temperature-resistant layer outside is equipped with anticorrosive layer, the material of high-temperature-resistant layer is organic silicon high-temperature-resistant paint, the material of anticorrosive layer is epoxy coal-tar pitch paint, combustion furnace outside is equipped with connecting assembly and recovery mechanism, recovery mechanism is installed in connecting assembly one side;Connecting assembly includes first flange, first flange is fixedly connected with the top end of combustion furnace.The utility model is equipped with connecting assembly and recovery mechanism, can quickly install and disassemble furnace cover, installation and disassembly can be completed without using complex tool, reduce operation difficulty, while can be re-delivered to combustion furnace inside with flue gas and burn, reduce the oxygen concentration and temperature of combustion area, can improve combustion condition.

The utility model discloses an ensiling cooling tank, including cooling tank and bottom plate, cooling tank is installed at the top of bottom plate, the interior of cooling tank is set to be cavity structure, the exterior of cooling tank is equipped with the inflation component that is used for filling nitrogen into the interior of cooling tank, one end of inflation component extends into the interior of cooling tank, and the other end of inflation component extends into the interior of cooling tank. According to the fresh-keeping device, nitrogen replacement of the inflation assembly can quickly reduce the oxygen concentration, restrain microorganism breeding and form a synergistic fresh-keeping effect with low temperature, meanwhile, the temperature of the cooling tank can be lowered, and the temperature of the cooling tank can be lowered. According to the device, an accurate temperature, gas concentration and pressure monitoring system is adopted, the cooling assembly and the inflation assembly can be regulated and controlled in real time, rapid and uniform cooling is achieved, the fresh-keeping effect is lasting, the quality of silage is remarkably improved, the storage life of the silage is remarkably prolonged, and the nutrition loss and putrefaction risk is reduced.

The invention discloses a centrifugal machine protection device and a centrifugal machine, and relates to the technical field of centrifugal machines. The centrifugal machine protection device comprises an air conveying pipe, an air outlet pipe, a plugging assembly, an adjusting assembly and a control assembly. One end of the gas conveying pipe is communicated with a gas inlet of the centrifugal machine, and the other end of the gas conveying pipe is communicated with gas supply equipment; one end of the air outlet pipe is communicated with an air outlet of the centrifugal machine; the plugging assembly communicates with one end of the air outlet pipe away from the air outlet; the adjusting assembly is arranged on the gas conveying pipe; the control assembly comprises a control piece and an air pressure sensor, the air pressure sensor is arranged on the plugging assembly, and the control piece is electrically connected with the adjusting assembly and the air pressure sensor. According to the centrifugal machine protection device, the inert gas is continuously input into the centrifugal machine, so that the air pressure in the centrifugal machine is larger than the environment air pressure, the oxygen concentration in the centrifugal machine is effectively reduced, flash explosion accidents of the centrifugal machine can be effectively avoided, and the working safety of the centrifugal machine is improved.

The invention relates to the technical field of fire extinguishing, and discloses a fire-fighting device assembly, a preparation method thereof and a fire extinguishing method. The fire-fighting device assembly comprises a fire-fighting device and a fire extinguishing agent spraying unit arranged on at least one side of the fire-fighting device, the fire-fighting device comprises a fire-fighting device base body and a first fire extinguishing agent, and the surface of the fire-fighting device base body is made of a liquid absorbing material; the first fire extinguishing agent is attached to the surface of the liquid absorbing material and in gaps of the liquid absorbing material; and the fire extinguishing agent spraying unit is used for spraying a second fire extinguishing agent. According to the fire-fighting device assembly, through the physical isolation effect of the fire-fighting device, the chemical inhibition effect of the fire extinguishing agent and the smoke elimination effect, the fire extinguishing efficiency is improved, the fire extinguishing time is short, the use amount of the fire extinguishing agent is saved, and meanwhile the protection capacity for surrounding energy storage equipment or electric equipment is improved.