54results about How to "Fire suppression" patented technology

The utility model relates to the field of automobile parking space fire fighting equipment, and particularly discloses an intelligent fire extinguishing device for an automobile parking space, which comprises a fireproof cover, a support, a fire fighting nozzle, a temperature sensor, a smoke sensor and a lifting assembly, the fireproof cover is fixedly mounted right above the parking space through the support, and an opening is formed in the bottom of the fireproof cover; the fire-fighting sprayer, the temperature sensor and the smoke sensor are all installed in the fireproof cover, the lower end of the fireproof cover is sleeved with a first fixing frame, the first fixing frame is connected with the lifting assembly and moves up and down under the action of the lifting assembly, when the first fixing frame makes contact with or gets close to the support, the fireproof cover is completely folded, and when the first fixing frame makes contact with the parking space, the first fixing frame moves up and down. The fireproof cover is unfolded, and a closed space is formed between the fireproof cover and the parking space. The fire-proof cover can be used for isolating a vehicle on fire from surrounding vehicles or equipment, fire spreading is avoided, meanwhile, a water pool can be formed in the fire-proof cover to immerse a battery, and the final fire extinguishing purpose is achieved.

The invention relates to an aluminum alloy cable connector, and belongs to the technical field of cable installation. The aluminum alloy cable connector comprises a crimping pipe, two insulating threaded pipes and two threaded sleeves, the two insulating threaded pipes are fixedly connected to the two ends of the crimping pipe respectively, and the two threaded sleeves are in threaded connection to the opposite ends of the two insulating threaded pipes respectively; the sealing device is arranged on the surface of the crimping pipe in a sleeving manner; a user only needs to rotate the threaded sleeve to perform internal and external sealing operation at the same time, and in the process, the first internal sealing mechanism not only can perform double sealing on a gap between the aluminum alloy cable and the insulating threaded pipe, but also can firmly bond the aluminum alloy cable and the insulating threaded pipe together, so that the sealing effect is good. Therefore, the aluminum alloy cable protection layer and the insulation threaded pipe are connected more tightly, and the overall connection strength of the connector is improved.

The invention provides a preparation method of a rare earth modified flame-retardant material and an application of the rare earth modified flame-retardant material in fabric flame retardance, and the method comprises the following steps: carrying out combination coordination on phosphonitrilic chloride trimer and p-hydroxybenzoic acid to form phenoxy, and reacting with rare earth chloride to obtain the rare earth modified flame-retardant material. The method has the advantages of simple preparation process, no need of high-temperature and high-pressure reaction, no pollution and easiness in large-scale production. The invention further provides a method for preparing the flame-retardant fiber from the rare earth modified flame-retardant material CSHB-X. The rare earth modified flame-retardant material has good flame-retardant performance on fiber-forming fabric, and the afterflame time of the fiber-forming fabric can be effectively shortened.

The utility model relates to the field of automobile fire-fighting equipment, and particularly discloses a movable automobile intelligent fire extinguishing device which comprises a fireproof cover, a fire-fighting sprayer, two lifting assemblies and a telescopic arm, the bottom of the fireproof cover is provided with an opening, the lower end of the fireproof cover is provided with a lower fixing frame, and the upper end of the fireproof cover is provided with an upper fixing frame. The bottom of the fireproof cover is connected with the lower fixing frame, the top of the fireproof cover is connected with the upper fixing frame, the fireproof cover is driven by the lifting assemblies to be folded on the lower fixing frame or unfolded to form a closed space, the telescopic arm is located between the two lifting assemblies, and the two ends of the telescopic arm are connected with the lower fixing frame and the fire fighting truck respectively. The fire-proof cover is combined with a fire fighting truck, the fire-proof cover can be used for isolating an on-fire automobile from surrounding automobiles or equipment, fire spreading is avoided, meanwhile, a water pool can be formed in the fire-proof cover to immerse a battery, the final fire extinguishing purpose is achieved, and compared with a water gun fire extinguishing mode, the fire extinguishing efficiency can be improved, and fire extinguishing safety can be ensured; and water resources are greatly saved.

The utility model relates to a glass wool veneering mechanism which comprises a first conveying line, a second conveying line, a first extrusion roller, a second extrusion roller and a distance adjusting device, the first conveying line and the second conveying line are arranged in a spaced mode in the first direction, and the first extrusion roller and the second extrusion roller are arranged in a spaced mode in the second direction. The first support is arranged on the first conveying line and the second conveying line, the first support is provided with two first sliding grooves which are symmetrically arranged along a defined symmetric axis, each first sliding groove is internally provided with a first sliding block which moves in the height direction of the first sliding groove, the second extrusion roller is rotatably connected with the two first sliding blocks, and the driving assembly is connected with the two first sliding blocks. By adjusting the distance between the first extrusion roller and the second extrusion roller, the distance between the first extrusion roller and the second extrusion roller can adapt to glass wool of different thicknesses. Therefore, excessive extrusion of thicker glass wool caused by too small distance between the glass wool and the veneering fabric can be avoided, or the situation that thinner glass wool cannot be attached to the veneering fabric caused by too large distance between the glass wool and the veneering fabric can be avoided.

The present invention relates to a battery pack comprising: a plurality of battery modules, each battery module comprising a plurality of battery cells; a pack case provided to accommodate the plurality of battery modules; an exhaust device provided in the pack case and configured to exhaust gas generated in the battery modules to the outside of the pack case; and an inflator configured to discharge the carbon dioxide stored therein toward the exhaust device.

The utility model discloses a fireproof structure of a rail transit bidirectional converter, which comprises a cabinet body, the rail transit bidirectional converter is assembled on the inner lower wall of the cabinet body, a putting box is embedded in the upper wall of the cabinet body, insertion rods are movably inserted in the two side walls of the putting box respectively, and two electric push rods are assembled on the two side walls of the putting box respectively. Two electric push rods are arranged at the two ends of the two inserting rods, two connecting rods are connected between the telescopic ends of the two electric push rods and the two inserting rods, rubber clamping jaws are assembled on the opposite walls of the two inserting rods respectively, and a fire extinguishing ball is clamped between the two rubber clamping jaws. Fire extinguishing balls are put in time to extinguish fire, the fire behavior can be inhibited in time, and the air velocity can be increased in daily use to assist in cooling.

The utility model discloses an anti-slag-penetration slag cooler, relates to the field of slag coolers, and mainly aims to solve the problem that high-temperature slag and fire can penetrate out of a channel in the middle of a spiral slag guide sheet of the slag cooler to damage slag conveying equipment at present. The device comprises a base, a rail of a barrel is arranged on a riding wheel of the base, a large chain wheel of the barrel is connected with a chain wheel of a motor through a chain, a slag discharge pipe extends into a slag inlet, and the other ends of a water inlet pipe and a water return pipe which are communicated with a water jacket of the barrel are connected with a rotary joint; a slag outlet is formed in the rear end of the barrel, a spiral slag guide sheet A is arranged on the inner wall of the barrel between the slag inlet and the slag outlet, and a stop block is arranged in a channel in the middle of the spiral slag guide sheet A. A water inlet and a water outlet are formed in the surface, in contact with the inner wall of the barrel body, of the spiral slag guide sheet A; a high-temperature slag penetration prevention section is arranged in the cylinder body in front of the spiral slag guide sheet A, and a low-temperature slag penetration prevention section is arranged in the cylinder body behind the spiral slag guide sheet A. The device has the advantage that fire disasters caused by slag penetration of the slag cooler are inhibited.

The invention relates to the technical field of power distribution pipe gallery construction, and discloses a cabinet fire extinguishing system based on a perfluorohexone power distribution pipe gallery, the cabinet fire extinguishing system comprises a main body assembly, the power distribution pipe gallery, a cable bridge, a cable and an electric box, the cable bridge is fixed on the inner wall of the power distribution pipe gallery, the cable is located on the cable bridge, and the electric box is fixed on the main body assembly. The electric box is arranged on the inner wall of the power distribution pipe gallery; and the fire extinguishing assembly is arranged in the electric box and comprises a fixed seat fixed in the electric box. The beneficial effects of the invention are that through the arrangement of the fire extinguishing assembly, when a fire occurs in the electric box, the ventilation opening of the electric box can be quickly sealed, so that the fire is prevented from spreading, meanwhile, oxygen in the electric box can be quickly consumed in a closed environment, so that the fire is inhibited, and after the ventilation opening of the electric box is sealed, the fire extinguishing effect is improved. The fire extinguishing pipes can move to the central position of the electric box, through the combined action of the upper fire extinguishing pipe and the lower fire extinguishing pipe, a fire source can be covered rapidly and evenly, and therefore fire disasters can be better extinguished.

The invention discloses a fire extinguishing agent special for a lithium ion battery fire as well as a preparation method and application thereof, and belongs to the technical field of lithium ion battery fire extinguishing agents. The main component of the special fire extinguishing agent for the lithium ion battery fire comprises a 16F fluorocarbon, and a preparation method of the 16F fluorocarbon comprises the following steps: (1) fluorination reaction: mixing cyclohexanone, silver fluoride and a catalyst, and reacting under the protection of ice bath and inert gas; (2) epoxidation reaction: adding the suprapoeia acid salt and silver metal particles, heating in a water bath, and fully reacting; and (3) further fluorination: taking the obtained product as a raw material, repeating the steps (1) and (2), and then purifying to obtain the product. The preparation method has the beneficial effects that the obtained C8F16O fluorocarbon has excellent high insulation performance, and does not cause short circuit or other electrical faults; a large amount of heat can be quickly absorbed, and the fire source temperature is effectively reduced. Due to the characteristic, the fire extinguishing efficiency is improved, and the heat radiation influence of a fire disaster on the surrounding environment is reduced.

This invention discloses a protective prefabricated substation, belonging to the technical field of substation equipment. It includes a prefabricated enclosure composed of a base, four columns, a truss, and multiple baffles. A capping mechanism is installed on the upper side of the truss. The capping mechanism includes a capping plate, two top plates, multiple hinges, two sets of sliding components, four sets of support components, a pressure chamber, and multiple first pressure valves. The bottom sides of the two top plates, which are far apart from each other, are respectively connected to the two sets of sliding components. The pressure chamber is horizontally positioned on the bottom sides of the two top plates, and its bottom end is fixedly sealed to the outside of the capping plate. The multiple first pressure valves are vertically fixedly fitted inside the capping plate. The two top plates and the capping plate are connected by four sets of support components. The space between the pressure chamber and the capping plate is filled with fire extinguishing gas. A ventilation mechanism is installed on the rear baffle. This invention effectively solves the defects of insufficient fire resistance and lack of automatic fire extinguishing function, making it difficult to effectively prevent the spread of fire after it starts inside the prefabricated substation.

The invention provides a clothes dryer which can restrain ignition even under the condition that flammable refrigerant leaks out and is high in safety. A drying chamber (2), a circulating air path (20), a circulating air blower (27) and a heat pump (35) are accommodated in a shell (1), and the circulating air path (20) is provided with a lower circulating air path (30), an air vent (40) and an opening and closing stopper (41), wherein the lower circulating air path (30) is arranged along the bottom (1b) of the shell (1) and is closer to the lower part than the drying chamber (2); the air vent (40) is arranged in the lower circulating air path (30); and the opening and closing stopper (41) is used for opening and closing the air vent (40).

The invention belongs to the technical field of electrical cabinets, and discloses a multilayer drawer type electrical cabinet with good heat dissipation performance, which comprises an electrical cabinet shell with supporting legs welded at the bottom, a fixed frame plate is fixed on the inner wall of one side of the electrical cabinet shell through bolts, and C-shaped sliding rails distributed at equal intervals are welded on the outer walls of the two sides of the fixed frame plate; t-shaped sliding blocks are slidably inserted into the inner walls of the C-shaped sliding rails, a mounting bracket is welded between the two T-shaped sliding blocks, and a monitoring camera is mounted on the inner wall of one side of the top of the electrical cabinet shell. The temperature sensor is arranged in the electrical cabinet, the internal situation can be fed back and known in real time, the smoke particle sensor is matched with the monitoring camera to achieve dual monitoring means, short-circuit fire can be rapidly alarmed, when short-circuit fire occurs, oxygen can be effectively isolated through carbon dioxide rapidly sprayed out, and the safety of the electrical cabinet is improved. The fire behavior is restrained or the fire extinguishing condition is achieved, and the overall safety can be effectively improved.

The invention belongs to the technical field of coal mine fire prevention and extinguishing, and discloses a mining gel-protein foam extinguishing agent and a preparation method thereof.The preparation method mainly comprises the steps that kitchen waste serves as a raw material, and animal protein and plant protein in the kitchen waste are hydrolyzed through proteolytic enzyme to form hydrolyzed protein; the gel-protein foam extinguishing agent is prepared by respectively screening the concentration of the four surfactants with the optimal foaming performance, compounding the four surfactants with the prepared hydrolyzed protein and adding components such as a gelling agent, a cross-linking agent and an anti-freezing agent. According to the prepared gel-protein foam fire extinguishing agent, efficient fire extinguishing is guaranteed, meanwhile, resource utilization of domestic waste is achieved, compared with a traditional foam fire extinguishing agent, the gel-protein foam fire extinguishing agent is more stable, the used materials are all bio-based raw materials, and pollution to the environment is avoided.

The invention discloses a safety watertight chamber door for a fire extinguishing type cabin, and belongs to the field of cabin watertight doors, the safety watertight chamber door for the fire extinguishing type cabin comprises a frame welded with the cabin in a sealing manner, one side of the frame is connected with a watertight door body through a hinge, and the watertight door body is sequentially provided with a heat insulation heat exchange body, a watertight internal pressure body and a safety lock control body from outside to inside; the heat insulation and heat exchange body comprises a heat insulation plate and a heat exchange base plate installed on the heat insulation plate in a press fit mode. The internal pressure trigger type fire extinguishing sprayer in the lock column is automatically opened through high-pressure water supply, flame near the door body can be effectively restrained through spraying, meanwhile, the temperature of the door body and the temperature of surrounding air are greatly reduced through evaporation heat absorption, an evacuation channel is protected, and the heat exchange pipeline arranged in the heat insulation heat exchange body is used for heat exchange. Circulating cooling water is used for continuously taking away heat transmitted from the fire scene side, so that the temperature of the outer surface of the watertight door is remarkably reduced, high-pressure water is injected into the water pressure abutting pipe to expand the water pressure abutting pipe, continuous pressure is applied to the rubber sealing gasket, the rubber sealing gasket is tightly attached to the frame sealing outer groove, and oxygen is effectively prevented from entering the fire scene side.

The invention relates to a distributed new energy grid-connected consumption information acquisition device, and belongs to the technical field of consumption information acquisition. The distributed new energy grid-connected consumption information acquisition device comprises spiral protective sleeves which are uniformly distributed; the protection devices are uniformly distributed and are mounted on the surface of the spiral protection sleeve; the locking devices are evenly distributed, the locking devices are installed on the surface of the spiral protective sleeve, and every two adjacent locking devices are connected in a clamped mode; wild animals biting the wire are driven through the high-speed airflow and the odorizers, the abrasion degree and the collision impact force of surrounding objects to the wire are reduced through the elastic and protruding design, the damage probability of the wire can be reduced, and it is ensured that absorption information can be normally collected.

The utility model relates to the related technical field of fire-fighting equipment, and discloses a centralized pump set type driving fire suppression device, which is characterized in that air and water are pressurized and pumped into a mixed foaming tank in a mode of combining a piston type air pump and a water pump, and then are mixed with a foaming agent stored in a foaming agent storage tank; air, water and a foaming agent are mixed into bubbles through a stirring method, and then the mixed bubbles are pressed out of a pipeline for spraying by utilizing increased pressure in the mixing and foaming tank, so that foam storage spraying can be realized by utilizing a mode of preparing foam through on-site stirring, and compared with pure water spraying, electric appliance fire hazards can be effectively restrained; electric leakage danger is not easy to cause; through the connection mode of the water injection piston pump, the gas injection piston pump and the mixing stirrer, one group of driving motors can simultaneously drive the water injection piston pump, the gas injection piston pump and the mixing stirrer, a plurality of motors are not needed, and the cost is effectively reduced.

The present application relates to the technical field of energy storage battery, in particular to an energy storage battery and a module heat insulation drainage plate and a temperature and pressure collecting line heat insulation structure, the energy storage battery comprises a battery module, the top of the battery module is provided with a module end plate, the module end plate is provided with an electric core explosion-proof valve, further comprising a heat insulation drainage plate, the heat insulation drainage plate covers above the module end plate, the heat insulation drainage plate is provided with a plurality of through holes and the upper surface is covered with a heat insulation sheet, the heat insulation sheet can withstand high temperature above 600 DEG C, further comprising a temperature and pressure collecting line heat insulation structure, the temperature and pressure collecting line is located in the inside of the battery module, the temperature and pressure collecting line heat insulation structure comprises a temperature and pressure collecting line and a heat insulation pipe wrapped outside, the heat insulation pipe can withstand high temperature above 600 DEG C.The present application can isolate the high temperature and high pressure mixed combustible gas liquid outside the module, prevent the high temperature and high pressure mixed combustible gas liquid from falling to the top of the electric core, prevent the secondary heating of the electric core; it can ensure that each conductive wire harness is separated from each other, completely isolate the situation of mutual lap and internal short circuit.

The embodiment of the invention discloses a charging station fire suppression method and device, electronic equipment and a computer readable medium. A specific embodiment of the method comprises the following steps: determining each fire extinguishing device corresponding to a target vehicle according to charging position information of the target vehicle and a pre-stored fire extinguishing device information set; generating first fire confidence coefficient information corresponding to the target vehicle according to the charging information of the target vehicle; generating second fire confidence coefficient information corresponding to the target vehicle according to the environment information of the target vehicle; determining fire alarm level information corresponding to the target vehicle according to the first fire confidence information and the second fire confidence information; and in response to determining that the fire alarm grade information meets a preset fire alarm grade condition, starting each fire extinguishing device corresponding to the target vehicle according to the charging position information of the target vehicle so as to suppress the fire. According to the embodiment, the fire extinguishing delay, the economic loss and the fire extinguishing cost are reduced, and the fire extinguishing efficiency is improved.

The utility model discloses an evaporation and condensation heat dissipation system based on a liquid medium. The condensing plate and the low-boiling-point flame-retardant liquid medicine are arranged in the closed shell; the plurality of battery cell modules are uniformly distributed at the inner bottom of the closed shell, and gaps are formed among the plurality of battery cell modules; the condensation plate is fixed at the inner top of the closed shell and covers the positions of the plurality of battery cell modules; the inner bottom of the closed shell is filled with the low-boiling-point flame-retardant liquid medicine, and the low-boiling-point flame-retardant liquid medicine intrudes into gaps among the battery cell modules; the low-boiling-point flame-retardant liquid medicine is vaporized and ascends when the battery cell modules are heated, and is evaporated and condensed to the lower surface of the condensing plate to form a plurality of naturally falling condensed water drops to dissipate heat of the battery cell modules; the thermal management system of the power battery is improved, the process requirements of the system are reduced, and the cost is reduced; based on the characteristics of the low-boiling-point flame-retardant liquid medicine, accurate and uniform control of the battery temperature is realized, and generation of open fire can be inhibited while the heat conduction efficiency is improved.

The invention relates to the field of flame retardants, in particular to an antimony flame retardant and a preparation method thereof, and the antimony flame retardant is composed of antimony oxychloride and a triazinyl derivative; the preparation method of antimony oxychloride comprises the following steps: grinding stibnite, washing with deionized water, drying to obtain powder, adding the powder into the deionized water, uniformly stirring and mixing, introducing chlorine, sealing, heating to 120-140 DEG C, keeping the temperature, stirring and reacting for 10-20 hours, collecting a crude product after the reaction is finished, washing the crude product with the deionized water, and drying to obtain the antimony oxychloride. And purifying in carbon disulfide to obtain antimony oxychloride. The antimony flame retardant provided by the invention can greatly improve the flame retardant property of a plastic product.

The present invention relates to a storage device (100) for a lithium-ion waste secondary battery and a method for storing and transporting a lithium-ion waste secondary battery by using the storage device, the storage device (100) including: a main body part (10) made of a silicone-based material, the main body part (10) having an opening (11) on at least one side and including a space portion (12) in which contents can be accommodated; an opening and closing part (20) for opening and closing the opening of the main body part; a one-way valve (30) which is installed on at least one surface of the main body part to discharge internal gas to the outside and prevent external gas from flowing to the inside; dry ice (50); and a dry ice storage part (60) for storing the dry ice, the dry ice storage part (60) being made of a porous and flame-retardant material. In the storage device according to the present invention, due to the dry ice contained in the main body part, the partial pressure of CO2 is increased to induce oxygen deficiency, and the temperature is lowered to additionally suppress a chemical reaction, thereby suppressing not only fire of a waste secondary battery, which was limited only to physical damage, but also fire and explosion caused by a chemical reaction.

The utility model relates to the technical field of bank protection cabins, and discloses a bank protection cabin safety protection device which comprises a protection cabin body, a protection cabin anti-theft door is arranged on the protection cabin body, an alarm lamp is fixedly installed on the upper surface of the protection cabin body, and a fire detector and a fireproof device are arranged on the inner wall of the protection cabin body. The fireproof device is arranged in the protection cabin body and used for preventing fire of the protection cabin body, the fireproof mechanism comprises a water supply pipe which is fixedly installed on the rear surface of the protection cabin body, the peep-proof device is arranged in the protection cabin body and used for preventing peep in the protection cabin body, and the peep-proof mechanism comprises two fixing blocks; according to the safety protection device for the bank protection cabin, an alarm can be given when a fire occurs in the bank protection cabin, toxic smoke can be discharged through an equipped fireproof device, and the toxic smoke can be sprayed out through a pressurizing spray head to be used for inhibiting the fire, so that the safety in the bank protection cabin is improved, and the safety protection device is more convenient.

The invention discloses a high-rise emergency lighting and evacuation indicating system, and relates to the technical field of emergency lighting and evacuation. The lighting evacuation efficiency is improved. Comprising an emergency control module and a lighting evacuation device, the emergency control module comprises a power module, a control module and an emergency module, the emergency module comprises a water supply unit and a smoke exhaust unit, and the water supply unit comprises a water conveying pipeline, a control valve, a flow meter, a pressure gauge, a booster pump and a water tank; the smoke exhaust unit comprises an exhaust fan, a smoke exhaust main pipeline and a smoke exhaust branch pipeline; and the water conveying pipeline is connected with the control valve through a bolt and a flange. The power supply module is arranged to supply power to the control module to provide daily required power, the water supply unit can provide water source support when a fire occurs, and the smoke exhaust unit is used for exhausting smoke from an internal area of a high-rise to an external area in time when the fire occurs to generate the smoke. Therefore, the smoke can be guided and transmitted.

The invention relates to a hybrid separator and an electrochemical device comprising the same. More specifically, the present invention can provide an electrochemical device having improved flame retardancy and safety, and relates to a hybrid separator easy to store and transport, and an electrochemical device including the same. More specifically, the present invention relates to a new-concept hybrid separator comprising a functional coating layer formed in a solid state at room temperature, in order to manufacture a battery, when an electrode and the hybrid separator face each other and are heated, the functional coating layer is formed in a solid state at room temperature. The solid functional coating layers coated on both surfaces of the separator are melted and mixed to satisfy specific content ratio conditions, so that the separator can be phase-changed into a liquid state or a gel state.

The present invention relates to an electrode and a secondary battery comprising the same, the electrode comprising an electrode active material layer, the electrode active material layer comprising an electrode active material and a conductive agent, the conductive agent comprising: a dot-type conductive agent; and a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are arranged side by side and bonded to each other, in which the average length of the carbon nanotube structure is 1 [mu] m to 500 [mu] m.

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 one-chamber multi-process equipment effectively facilitates operation on different positions of the passenger car and comprises a chamber body, a dynamic pressure chamber is arranged on the upper side in the chamber body, a static pressure chamber is arranged on the lower side of the dynamic pressure chamber, and a thermal camera is arranged in the middle of the lower side of the static pressure chamber; an air supply system; a waste gas treatment system; the three-dimensional lifting platform comprises a longitudinal platform capable of ascending and descending and two transverse platforms capable of horizontally moving front and back, a fire fighting mechanism is arranged in each transverse platform, the three-dimensional lifting platform is novel in structure, ingenious in conception and easy and convenient to operate, and the purpose of reducing fire fighting hidden dangers can be effectively achieved; and the function of carrying out descending protection on workers in the sudden power-off state is added, so that the multiple workers can cooperate with one another to carry out passenger car operation, the fire safety performance of paint spraying operation is improved, and the functions of defrosting and automatically adjusting the fire extinguishing direction are added.

The utility model discloses a plastic pipe elbow with a flame retardant function, and relates to the technical field of pipe elbows. According to the plastic pipe elbow with the flame-retardant function, the flame-retardant inner pipe and the flame-retardant outer pipe are made of high-impact-resistant polystyrene resin materials, and meanwhile the interior of the first flame-retardant cavity is supported through the first reinforcing ribs, so that the overall impact resistance of the elbow is improved; the end of the pipeline is tightly attached to the sealing strip, butt joint and sealing of the elbow and the pipeline are achieved, the overall strength and impact resistance of the connecting part are effectively improved through supporting of the second reinforcing ribs to the inner side of the second flame-retardant cavity, the flame retardant leaks out when the flame-retardant inner pipe and the flame-retardant outer pipe are fused, fire behavior is restrained, and the flame-retardant effect is improved. And the first flame-retardant cavity and the second flame-retardant cavity are separated through the first reinforcing rib and the second reinforcing rib, so that when the elbow is locally damaged, flame retardants in the first flame-retardant cavity and the second flame-retardant cavity cannot be completely leaked out.

The utility model discloses a kind of automatic isolation fireproof doors of coal mine well and alley, it includes two parallelly arranged isolation door frames, the middle part of isolation door frame is uniformly fixed with vertical plate, one side of vertical plate is rotatably connected with pedestrian transport isolation door, the side of vertical plate, away from pedestrian transport isolation door, is fixedly connected with horizontal plate, horizontal plate is rotatably connected with the isolation door above floating groove;Vertical plate is rotatably connected with the isolation door on the upper portion of belt conveyor;Isolation door frame bottom is fixed with door sill, door sill is rotatably connected with bottom isolation door;Rotatably connected with middle isolation door between vertical plate and isolation door frame.When fire occurs, through first pneumatic jack and second pneumatic jack, the closing action of pedestrian transport isolation door, the isolation door on the upper portion of belt conveyor, the isolation door above floating groove, middle isolation door and bottom isolation door is completed, completely plugging is realized at the connecting section of belt conveyor through fire door, the sealing between fire door and belt conveyor is improved, the risk of flame and toxic gas leakage spread is reduced, which is beneficial to the personal safety and coal mine safety of underground operating personnel.