106results about How to "Improve fire safety" patented technology

The invention relates to the technical field of coatings, and discloses a modified hexagonal boron nitride and organic silicon double-component doped high-flame-retardant epoxy resin powder coating as well as a preparation method and application thereof. Comprising the following raw materials in parts by weight: 25-50 parts of modified hexagonal boron nitride, 90-110 parts of organic silicon resin, 120-150 parts of epoxy resin, 5-8 parts of dicyandiamide, 100-120 parts of silica powder, 8-12 parts of other auxiliaries and 80-100 parts of filler. The flame-retardant epoxy resin powder coating is prepared by uniformly mixing the components, melting, extruding a sheet material, grinding and sieving. The flame-retardant and fireproof performance of the epoxy resin powder coating is greatly improved in a modified hexagonal boron nitride and organic silicon double-component doping mode.

The invention discloses a quick-charging energy storage device, a box body is hollow and is in a vertical column shape, the box body is composed of a base, a shell and a top plate in sequence from bottom to top, the base, the shell and the top plate are all made of flame-retardant materials, a plurality of moving seats are placed at the top end of the base, and the moving seats can horizontally move along the top end of the base; a vertical frame is fixed to the top end of each movable seat, and a battery pack is placed in each frame. During quick charging, a top plate is manually pushed downwards, and a large straight spur gear and a small straight spur gear can be rotated by utilizing a guide rod, a driving groove and a sleeve, so that a shell and a frame can perform diffusion movement; and the gaps between the shells, between the shells and the frames and between the frames are increased, namely, the ventilation space is increased, so that good ventilation and heat dissipation effects can be realized by utilizing the rotation of the electric fan, and the stability of quick charging is improved.

The invention relates to the technical field of adhesive tapes, and discloses an anti-crack flame-retardant double-sided glass fiber adhesive tape and a preparation method thereof, phosphoric acid compounds generated in the heating or combustion process of an epoxy cardanol-based flame retardant promote dehydration of an adhesive tape matrix to form a protective carbon layer, reduce heat release in the combustion process and improve the fire safety of the adhesive tape; epoxy groups in the structure can react with carboxyl-terminated nitrile rubber, so that the dispersity in epoxy resin is more uniform, a three-dimensional network structure with certain crosslinking density is formed, migration and precipitation are not easy to occur, and the flame-retardant durability is better; the polyepoxy cardanol-based flame retardant has good compatibility with the epoxy resin, and the linear flexible alkyl long chain has good toughness, so that when the adhesive tape is cracked by external force, part of energy can be absorbed to disperse stress and reduce brittleness, and an adhesive tape matrix is endowed with better impact resistance, thereby improving the crack resistance of the adhesive tape.

The utility model discloses a fluoroplastic insulating high-temperature-resistant fireproof cable, which comprises a cable core, the cable core comprises eight wire cores which are annularly distributed at equal intervals, each wire core is composed of an inner sheath and a conductor, a composite insulating outer layer is wrapped outside the cable core, the composite insulating outer layer is composed of a contact layer, a buffer layer and a reinforcing layer, and the contact layer is wrapped outside the buffer layer. A composite high-temperature-resistant layer is arranged outside the composite insulating outer layer, the composite high-temperature-resistant layer is composed of a high-temperature-resistant base material, a heat reflecting layer and a heat-resistant protective layer, and the composite high-temperature-resistant layer is wrapped with an outer sheath. The problems of cable stability, flame-retardant and fireproof performance, electrical performance, chemical corrosion resistance and large-current transmission capability in a high-temperature environment are solved.

The invention discloses a direct contact type mineral oil dielectric cooling liquid and a preparation method thereof, the cooling liquid comprises the following raw materials: mineral type naphthenic base white oil, an antioxidant and a light stabilizer, aromatic hydrocarbon of the mineral type naphthenic base white oil is completely hydrogenated and saturated and does not contain corrosive sulfur, nitrogen, oxygen and other heteroatoms, and the refined naphthenic base oil has good environmental protection property and good corrosion resistance. And moreover, the problem that the cable becomes hard after being soaked in the cooling liquid is solved, the compatibility with other materials is good, and the cooling liquid can have good compatibility with materials of a liquid cooling system without adding cable compatibilizers such as oily epoxy resin and a dispersing agent. The mineral oil type dielectric cooling liquid disclosed by the invention is colorless, transparent, good in environmental protection property, good in flowing property, fireproof safety performance, heat-conducting property, insulating property and oxidation stability, free of acidic substances and corrosion, less in water absorption in a use process, good in stability, excellent in compatibility with IT equipment materials, power lines and network cables, and good in corrosion resistance. And yellowing due to light and heat is not easily caused.

The invention relates to the technical field of surface corrosion prevention, and discloses a high-strength corrosion-resistant steel bar surface epoxy coating and a preparation method thereof. The high-strength corrosion-resistant steel bar surface epoxy coating comprises the following components in parts by weight: 1-5 parts of modified polyaniline / TiO2 powder, 8-10 parts of aluminum triphosphate, 8-10 parts of zinc phosphate, 8-10 parts of talcum powder, 10-15 parts of barium sulfate, 100-200 parts of modified epoxy resin, 50-100 parts of a curing agent, 10-20 parts of an accelerant and 1-3 parts of a flatting agent. The modified polyaniline / TiO2 high-strength corrosion-resistant epoxy coating provided by the invention has the advantages of self-cleaning, scratch resistance, corrosion resistance, wear resistance and the like, and polyaniline has excellent host capability of capturing nano particles and can be co-doped with some active inorganic nano particles to effectively improve the solubility and corrosion resistance of the nano particles. And the modified epoxy resin has the characteristic of high temperature resistance, so that more comprehensive protection is further provided for the reinforcing steel bar. The method is low in cost and environment-friendly, and has good social and economic benefits.

The invention discloses a preparation method and application of a flame-retardant coating, and relates to the technical field of flame-retardant coatings for special papers.The flame-retardant coating is prepared from, by weight, 80-85 parts of flame-retardant pigment and 15-20 parts of heat insulation pigment; the total weight of the components is set as M, the adhesive accounts for 8-15% M, the co-adhesive accounts for 7-9% M, the thickening agent accounts for 1-2% M, the lubricant accounts for 0.6-1% M, the water repellent agent accounts for 0.5-0.8% M, the defoaming agent accounts for 0.1-0.2% M, and the dispersing agent accounts for 0.2-0.3% M. The flame-retardant coating is designed and prepared, and the tipping base paper which can be carbonized at high temperature and does not burn is prepared by coating the surface of the tipping base paper. The preparation method is simple in process and high in operability, the defects of a direct papermaking method and an in-pulp addition method are overcome, the production efficiency and the resource utilization rate are improved, and the production cost is reduced. The flame-retardant tipping base paper is prepared by a coating method instead of a traditional in-pulp addition method, and a functional coating is selected and designed, so that the coating process flow and parameters are determined. The flame-retardant coating prepared by the invention endows tipping base paper with excellent high-temperature carbonization and non-combustion performance, and the flame safety performance of the tipping base paper is effectively improved.

The utility model relates to the technical field of coal mine goaf fire prevention, and discloses a spontaneous combustion prevention safety device which comprises a box body. The air supply assembly comprises a water storage cavity, an air storage cavity, an air inlet pipe, a DN40 air constant pressure valve, a contact switch valve, an air inlet control valve, an exhaust control valve, an air conveying pipeline, a limiting ring, a sealing sleeve, an ejector rod and a floating ball. By arranging the gas supply assembly, when the goaf of the coal mine is subjected to drainage operation, the goaf of the coal mine is in a negative pressure state, and at the moment, the gas inlet control valve, the DN40 air constant pressure valve and the gas exhaust control valve are started, so that the gas inlet pipe continuously inputs inert gas into the gas storage cavity and the gas conveying pipeline, and the inert gas is promoted to be filled into the goaf of the coal mine; passive entry of air into the goaf is changed into automatic entry of inert gas into the goaf through the device, passive prevention of goaf ignition is changed into beforehand prevention, and the overall fireproof safety of the coal mine goaf is improved.

The invention relates to the technical field of archive repository air conditioning, in particular to a ventilation system for an archive storage room, the archive storage room comprises an archive room, a control room, a reading room and a ventilation room, the archive room is internally provided with a plurality of archive cabinets for storing paper archive files; the ventilation system comprises an indoor ventilation structure for circulating ventilation of the interior of the archive room. According to the file cabinet, through circulating ventilation, air filtration and sterilization treatment of the indoor ventilation structure and effective removal of moisture through the condensation dehumidification box, the risk that files are damaged due to moisture, mildew, insect pests and the like is remarkably reduced. Especially for paper archives, air circulation and dehumidification treatment effectively prevent moisture from eroding the archives, and the archives are kept dry and intact. Through multiple filter screen filtration and ultraviolet sterilization, air in the file room becomes fresher and cleaner, and dust, peculiar smell and bacteria in the air are reduced.

The invention relates to the field of cable detection, and discloses a fire-fighting cable detection device, which is used for solving the problem that the state of a cable cannot be accurately judged by previous detection parameters due to environmental problems when the fire-fighting cable is detected, and the method comprises the following steps: arranging a sensor for detection on the fire-fighting cable in a refrigeration house, the method comprises the following steps: acquiring embrittlement data of a fire-fighting cable, calculating and analyzing according to the embrittlement data to obtain an embrittlement-prone coefficient, acquiring condensation data of the fire-fighting cable through a sensor, calculating and analyzing according to the condensation data to obtain a condensate water coefficient, acquiring pull-down data of the fire-fighting cable through the sensor, and calculating and analyzing according to the pull-down data to obtain a surface pull-down coefficient. According to the invention, comprehensive evaluation is carried out on the fragility coefficient, the condensate water coefficient and the surface shrinkage coefficient to obtain the affected index of the cable, and alarm prompt is carried out according to the affected index of the cable, so that the accuracy of cable state detection is effectively improved, and the fire safety is improved.

The invention discloses an automatic generation design method for a high-rise residential area fire-fighting site based on deep learning. The method comprises the following steps: acquiring a data sample; cleaning and standardizing the data sample, and dividing the data sample into a real sample serving as a training set and a real sample serving as a test set; inputting the training set into a generator of a pix2pix model to generate an image, inputting the image and a real sample of the training set corresponding to the image into a discriminator at the same time, and outputting a discrimination result according to the authenticity of the image; the generator determines how to adjust own parameters by calculating a loss function according to feedback information of the discriminator so as to improve the quality and reliability of the generated image; inputting the test set into a trained pix2pix model, and generating a high-rise residential area fire-fighting site layout scheme image; and evaluating the high-rise residential area fire-fighting site layout scheme image and optimizing a pix2pix model. According to the invention, the fire-fighting site layout scheme can be efficiently and reasonably generated.

The invention discloses a cable interlayer fire prevention method and system based on a fire-fighting robot, and relates to the technical field of intelligent fire fighting, and the method comprises the steps: a patrol robot carries out the regular patrol between cable layers, monitors the temperature of a cable in real time, and gives out a fire early warning signal when the temperature reaches a first set value temperature 1; when the patrol robot detects that the temperature continues to rise to a higher threshold temperature 2, fire information is automatically sent to the fire extinguishing robot through the communication device, and an instruction of going to a fire position is sent; and after receiving the fire information, the fire extinguishing robot automatically moves to a fire position, and a fire source is extinguished through a spraying or powder spraying fire extinguishing device of the fire extinguishing robot. According to the invention, the risk caused by manual intervention is reduced, the cable interlayer area can be timely controlled at the early stage of fire, and the safety of facilities and personnel is guaranteed.

The invention relates to the field of cable materials, and provides an anti-UV environment-friendly photovoltaic solar cable which structurally comprises a cable core, an isolating layer, an insulating layer, a shielding layer and an outer layer. And the outer layer is prepared from a modified polyurethane and polyester composite material, and is obtained by adopting components such as surface modified titanium dioxide / magnesium hydroxide filler, montmorillonite, thermoplastic polyurethane and modified polyester master batch through a melting and extruding process. The cable has excellent flame retardance, ultraviolet resistance and durability, can keep stable performance under atrocious weather conditions, and meets special requirements of solar power stations, roof solar panel systems and photovoltaic agricultural facilities. The preparation method comprises the steps of preparing the cable core, the isolation layer, the insulation layer, the shielding layer and the outer layer step by step, and finally extruding and coating the outer layer through double screws to ensure that the cable is safe, environment-friendly and durable.

The invention relates to the technical field of environment-friendly materials, in particular to a modified regenerated polyphenyl plastic material and a preparation method thereof. The material is composed of a plurality of novel formula components such as regenerated polyphenyl plastic, hydrogenated SBS, PET-PBS, nano titanium dioxide, an antioxidant 1010, calcium stearate and a phosphorus-containing benzoxazine prepolymer. The preparation method comprises the following steps: synthesizing the novel component, pretreating the regenerated polyphenyl plastic, proportioning, mixing, and carrying out extrusion molding to obtain the product. Through a unique formula and a preparation process, the tensile strength, the impact strength, the thermal deformation temperature, the thermal stability, the flame retardance, the antibacterial property, the fluorescence property and the like of the modified regenerated polyphenyl plastic material are remarkably improved.

The utility model relates to an intelligent temperature control heat preservation cover for a battery, which comprises a plurality of heat preservation single sheets, each heat preservation single sheet is provided with a fixing component, and the plurality of heat preservation single sheets are detachably connected with one another through the fixing components to form a heating integrated heat preservation cover; the multiple fixing assemblies are arranged on the edge of the heat preservation single piece at intervals, and the length of each fixing assembly can be adjusted. The heating integrated heat preservation cover is coated outside the battery system, and at least one heat preservation single sheet is provided with heat dissipation holes; each thermal insulation single sheet comprises an outer layer, a thermal insulation layer and a flame-retardant inner layer, and the outer layer, the thermal insulation layer and the flame-retardant inner layer are sequentially laminated; a heating film is embedded in the heat preservation layer, and a temperature sensor is arranged in the heat preservation layer and close to the heating film. Each thermal insulation single sheet is connected with a plurality of temperature acquisition wire harnesses, and each temperature acquisition wire harness is connected to a temperature sensor and a temperature management system and is used for transmitting battery temperature data in real time; the temperature management system is connected with the heating film and used for controlling the heating power of the heating film according to the battery temperature data.

The invention relates to a method for preparing an electrical equipment insulating liquid from waste edible oil methyl ester with an improved pour ignition point characteristic, and belongs to the technical field of insulating liquids. Distilling the waste edible oil methyl ester to obtain distilled waste edible oil methyl ester; the method comprises the following steps: adding a molecular sieve, immobilized lipase IM-100, neopentyl glycol, distilled waste edible oil methyl ester and methyl nonanoate into a reaction vessel, reacting for 72-96 hours under the conditions that the temperature is 40-50 DEG C and the stirring rotating speed is 120-130 rpm, and separating out the molecular sieve and the immobilized lipase IM-100 to obtain waste edible oil-nonanoate neopentyl glycol diester; and carrying out adsorption, vacuum drying and filter membrane filtration on the obtained waste edible oil-nonanoic acid-based neopentyl glycol diester to generate the waste edible oil-nonanoic acid-based neopentyl glycol diester insulating liquid. The obtained waste edible oil-nonanoic acid neopentyl glycol diester insulating liquid has an excellent low-temperature flow characteristic, and the ignition point also reaches the fireproof safety standard of K-grade insulating oil, so that the risk of accidents of power equipment such as a transformer and the like under severe environment conditions is reduced to a great extent; the vacancy of the insulating liquid in high-safety application places such as offshore wind power and the like is supplemented, and more choices are provided for the application of the insulating liquid.

The application discloses a high-temperature-resistant silica gel composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. In view of the problems that existing silica gel is easy to be thermally degraded and brittle and has poor flame-retardant performance above 300 DEG C, the application uses methyl vinyl silicone rubber as a matrix, introduces specific structure organic flame retardant and epoxy modified nano cerium dioxide. The two are in-situ chemically bonded through epoxy groups and phenolic hydroxyl groups to construct a synergistic protection network, which significantly improves the dispersibility of the filler and prevents high-temperature migration. The material has excellent mechanical property retention rate at 350 DEG C extreme high temperature, and the flame-retardant grade reaches UL-94 V-0 level. By forming a dense Ce-P-O-C ceramicized carbon layer, oxygen and heat are effectively isolated, the technical problems that the silica gel is easy to crack and easy to burn in an extreme heat environment are solved, and the material is suitable for the fields of aerospace and electronic packaging.

The utility model discloses a safe fireproof low-voltage switch cabinet which comprises a cabinet body, a cabinet door is hinged to the surface of the front side of the cabinet body through a hinge, a control panel is arranged on the surface of the cabinet door, a mounting plate is arranged in the cabinet body, a plurality of mounting frames are arranged on the surface of the mounting plate, and a group of threading frames are arranged on the surface of the mounting plate. Wire arranging clamping blocks are welded to the inner wall of the wire penetrating frame. According to the utility model, through the arrangement of the smoke sensor, when a certain position in the cabinet body is on fire, the smoke sensor senses smoke, at the moment, the smoke sensor converts a smoke signal into an electric signal and transmits the electric signal to the control panel, and the control panel controls the electromagnetic valve to be opened; carbon dioxide in the carbon dioxide storage tank enters the longitudinal gas conveying pipes and the transverse gas conveying pipes through the guide pipes and is sprayed out through the spray heads on the surfaces of the longitudinal gas conveying pipes and the transverse gas conveying pipes, the longitudinal gas conveying pipes and the transverse gas conveying pipes are located on the peripheries of the multiple installation frames, a large amount of carbon dioxide can be rapidly sprayed to the fire switch for fire extinguishing, and the fire extinguishing efficiency is high.

The present invention provides a smart gas fire linkage method and an Internet of Things system based on government safety supervision. The method is executed through a smart gas government safety supervision management platform, including: determining the production stage information of the enterprise based on the enterprise's gas consumption statistics, current production data and production planning information; obtaining feedback information from the gas company management platform based on the enterprise's production stage information; obtaining the alarm information and / or fault information, working parameters and hidden danger processing data of at least one group of gas fire fighting equipment of the enterprise, and evaluating the fire risk level of the enterprise; determining the fire control parameters of the enterprise based on the fire risk level and hidden danger processing data of the enterprise; determining the update instructions based on the adjustment of the working parameters; sending the update instructions to the corresponding at least one group of gas fire fighting equipment, and controlling the gas fire fighting equipment to update. In this way, fire hazards can be discovered in time, and reasonable response plans can be given for different enterprises to optimize the allocation of fire fighting resources.

The utility model discloses a charging pile with an isolation function in the technical field of charging piles, which comprises a charging pile body, a support column arranged behind the charging pile body, a shielding shed fixedly mounted at the upper end of the support column, an isolation mechanism and a safety mechanism arranged on the shielding shed, and a storage bin fixedly mounted at the upper end of the charging pile body. The charging pile with the isolation function is additionally provided with the isolation mechanism and the safety mechanism, the isolation mechanism adopts a dry powder overturning mode, the charging pile body can be directly covered with the isolation mechanism, the isolation effect is achieved, the fire can be effectively isolated, the charging pile body is extinguished, and the safety of the charging pile body is improved. The effect of protecting the charging pile body, the vehicle and the charging site is achieved, particularly, the safety mechanism adopts a dry powder spraying mode, dry powder spraying operation can be conducted on the charging pile body, and then fire extinguishing operation is achieved.

The invention provides a fireproof bus duct with an aluminum alloy shell, and relates to the technical field of power transmission equipment, the fireproof bus duct comprises a duct body and a cover plate, the cover plate is detachably connected with the top of the duct body, a bus bar and a fixing assembly are arranged in the duct body, the bus bar is fixedly arranged in the duct body through the fixing assembly, a connector is arranged at the end of the bus bar, and the connector is connected with the end of the duct body. A fireproof heat insulation layer is arranged between the groove body and the fixing assembly, a cavity is formed in the bottom of the cover plate, and the fireproof heat insulation layer can effectively prevent fire spreading and protect the bus bar from being affected by high temperature when a fire occurs, so that the fireproof safety of the bus duct is greatly improved, and the damage degree of the fire risk to an electrical system is reduced; when the external environment temperature is relatively high, the cavities can reduce the heat transfer into the bus duct, reduce the temperature rise of the bus bar, and improve the operation stability and reliability of the bus duct.

The invention belongs to the technical field of fire-fighting systems, and particularly relates to a fire-fighting control system and method for a thermal power plant based on image processing, and the system comprises a central control room, a detection alarm system, and a fire-fighting equipment inspection system. The detection alarm system is composed of a fire detection system, an alarm and linkage control system, an emergency broadcast and telephone system and a fire-fighting area integrated cabinet. The alarm and linkage control system is internally provided with an information acquisition unit, an evacuation plan unit, an information sending unit, a navigation generation unit, a disaster area fire extinguishing / fire fighting facility starting unit and a blocking plan unit, and the evacuation plan unit is internally provided with an evacuation information generation unit, an evacuation route generation unit and an edge updating feedback unit. According to the invention, the problems of false alarm and missing alarm caused by equipment failure or aging can be reduced, a scheme for hindering fire spreading and an emergency operation scheme for emergency treatment are provided, and the emergency operation scheme can guarantee the passing of safety officers as much as possible.

The present invention provides a battery module that can prevent the spread of fire and electrical short circuit caused by condensation when a fire occurs. To achieve the above object, the battery module includes: a battery cell assembly, the battery cell assembly includes a plurality of battery cells; a front cover, the front cover includes a top wall, a bottom wall, a left wall, and a right wall forming an internal space; and a module housing, when the battery cell assembly is accommodated in the internal space, the module housing is coupled to the front cover, and the module housing includes a cover portion, the cover portion protruding so that a portion of the cover portion faces at least one of the top wall, the bottom wall, the left wall, and the right wall.

The utility model provides a connecting structure of a coal conveying comprehensive building and a coal conveying trestle, and belongs to the technical field of thermal power generation. The coal conveying comprehensive building is arranged below the coal conveying trestle, the span of the adjacent coal conveying trestle supports is larger than the total length of the coal conveying comprehensive building, a supporting platform is arranged on the top of the coal conveying comprehensive building and connected with a step ladder, and the tail end of the step ladder is opposite to a coal conveying trestle door on the side portion of the coal conveying trestle. By adjusting the span of the coal conveying trestle support and the position of the coal conveying comprehensive building, the coal conveying comprehensive building is arranged below the coal conveying trestle, the land utilization rate is improved, workers can directly reach the coal conveying trestle through the coal conveying comprehensive building, and the inspection efficiency is improved.

The utility model relates to the technical field of heat-insulation fireproof doors, in particular to a steel heat-insulation fireproof door, which improves heat-insulation fireproof effects, use safety and fireproof reliability through combined use of a fireproof roller shutter and a door plate. Comprising a door frame and a door plate, the door frame is provided with the traction device, the traction device is used for pulling the door plate to rotate, the base is installed on the inner side wall of the door frame, the left end and the right end of the reel are both rotationally installed on the base, the top end of the fireproof roller shutter is connected with the outer side wall of the reel, and an opening is formed in the upper portion of the door frame. The fire resisting shutter penetrates through the interior of the opening of the door frame, the driving device is installed on the base and used for driving the reel to rotate, and the fire extinguishing device is installed on the door frame and used for extinguishing fire.

The invention discloses an electrical fire monitoring device and method, and relates to the technical field of power distribution. The electrical fire monitoring device comprises a monitoring unit, a fireproof unit and a control unit; the power distribution cabinet is internally provided with a mounting rack for mounting electrical elements, and the fireproof unit comprises a compression tank, a dry powder storage assembly and a spraying assembly; the compression tank is fixedly installed at the bottom end of the interior of the power distribution cabinet, compressed carbon dioxide gas is stored in the compression tank, the dry powder storage assembly comprises a powder storage box fixedly arranged at the top end of the interior of the power distribution cabinet, and the bottom of the powder storage box communicates with a vertical discharging channel. The monitoring unit collects temperature, humidity and smoke information in the power distribution cabinet in real time, after an electrical element is on fire, the control unit only needs to control the electromagnetic valve to be opened, the pair of injection pipes can rotationally inject carbon dioxide gas mixed with dry powder towards the electrical element in all directions, flames are rapidly extinguished, and the safety of the power distribution cabinet is improved. And the fireproof safety of the power distribution cabinet is greatly improved.

The invention discloses movable fire extinguishing equipment, an automatic liquid supplementing fire extinguishing method and a fire extinguishing system, and belongs to the technical field of fire safety. The method comprises the steps that through a preset network environment, the position number of an energy storage cabinet of which a fire signal is triggered is obtained; autonomously navigating to a fire extinguishing point preset at the position of the energy storage cabinet corresponding to the position number through a laser slam navigation mode; the position of a fire point is locked through a double-spectrum camera containing thermal imaging, and the mechanical arm is sequentially guided to adjust the fire extinguishing posture and open the valve to conduct jet fire extinguishing. The problems that the fire of the lithium battery energy storage cabinet is difficult to control and easy to spread are effectively solved, the fire safety level is improved, and remarkable economic benefits and social benefits are achieved.

The application belongs to the technical field of hospital logistics, and discloses a hospital logistics track system fire compartment safe crossing equipment, which is used for realizing the transition of a track system between different fire compartments and comprises a first track and a second track located on different fire compartments, wherein a fireproof component and a butt joint part are arranged between the first track and the second track; the butt joint part is provided with a butt joint rail for connecting the first track and the second track, and the butt joint rail is reversely arranged, so that the butt joint rail can be switched between a working state and a storage state; the application adopts the design idea that the butt joint rail is switched between the working state and the storage state, and realizes the collaborative control of track connection and fireproof isolation. When a fire occurs, the butt joint rail can be quickly reversed to be separated from the track line, a physical disconnection is formed, an unobstructed space is provided for the complete closing of a fireproof curtain or a fireproof door, and the fireproof component can normally play a role to block the fire and the smoke spreading channel.

The invention relates to the technical field of electrochemical energy storage, in particular to a mineral type energy storage cooling liquid composition and a preparation method thereof.The mineral type energy storage cooling liquid composition is prepared from base oil and additives, the base oil is prepared from, by mass, 80%-100% of paraffin-based mineral oil and 0-20% of naphthenic mineral oil, and the additives comprise an antioxidant, a light stabilizer and an anti-foaming agent; the addition amount of the additive is 0-1% of the total mass of the base oil. The invention relates to a mineral type energy storage cooling liquid composition. According to the mineral type cooling liquid composition and the preparation method thereof provided by the invention, the mineral type cooling liquid composition is prepared by adding trace amounts of the antioxidant, the light stabilizer and the defoaming agent into the mineral type base oil, the mineral type cooling liquid composition has relatively high flash point and breakdown voltage and relatively good low-temperature fluidity, and the cooling performance is effectively improved; and the cable also has good insulativity, fireproof safety and stability.

The invention discloses a roof assembly part of a transformer substation and an assembly type roof, and relates to the technical field of roof construction. The roof assembly part comprises a bottom plate, an inner core structure, a first connecting structure, a second connecting structure and a panel; wherein a mounting position is formed on the bottom plate; the inner core structure comprises a waterproof layer and a heat preservation layer which are sequentially arranged from top to bottom, and the heat preservation layer is installed at the installation position; the first connecting structure and the second connecting structure are arranged at the two ends, in the transverse direction, of the inner core structure correspondingly, the first connecting structure and the second connecting structure are both installed at the installation position, the first connecting structure is used for being connected with the second connecting structure of another roof assembly part, and the second connecting structure is used for being connected with the first connecting structure of another roof assembly part; and the panel covers the tops of the waterproof layer, the first connecting structure and the second connecting structure. According to the roof assembly part, the construction efficiency of roof construction can be improved, and the construction period is shortened.