14results about How to "Reduce explosion" patented technology

The invention belongs to the technical field of coal bed gas exploitation, relates to a self-energizing activated drainage gas recovery process, and introduces a self-energizing technology and a fracturing exploitation technology. In other words, before the self-energizing activator is injected, the fracturing technology is adopted to exploit the coal seam, high-pressure liquid or gas is injected into the coal seam, the coal seam is fractured, cracks are opened, and new cracks and channels are created. The self-energizing activator can increase the permeability of the coal bed, improve the pore connectivity, increase the release rate and collection efficiency of the coal bed gas, increase the quantity of the collected coal bed gas and reduce the waste of coal bed gas resources.

The embodiment of the utility model provides a battery module and electric equipment. The battery module comprises a shell, a battery core assembly, an air inlet valve and an exhaust valve, the shell is provided with a containing cavity, an air inlet hole and an exhaust hole, and the air inlet hole and the exhaust hole can both communicate with the containing cavity. The battery core assembly is arranged in the accommodating cavity; the intake valve includes an open state for opening the intake hole and a closed state for closing the intake hole. The exhaust valve includes an open state for opening the exhaust hole and a closed state for closing the exhaust hole. When the air inlet valve is in the open state, the air inlet hole is used for allowing inert gas to enter the containing cavity, so that the amount of oxygen existing in the containing cavity is reduced. According to the technical scheme provided by the embodiment of the utility model, the probability of explosion and combustion of the battery core assembly is reduced.

The utility model relates to the technical field of low-temperature control devices, and discloses a gas-liquid separation device which comprises an inner barrel, an outer barrel is sleeved on the surface of the inner barrel, and a barrel cover, a separation pipe, an exhaust pipe and a butt joint pipe are inserted on the upper surface of the inner barrel. The garbage can is reasonable in structure, a user puts the inner can into the outer can, heat preservation protection is carried out through the heat preservation layer and the reinforcing ribs, the blocking plate is installed in the inner can, after the user pushes away the protection semi-ring, the telescopic rod moves, the spring is compressed, and after the inlet pipe, the separation pipe and the exhaust pipe are installed on the can cover, the garbage can is separated. The manual valve penetrates through the outer barrel to be installed on one side of the inner barrel, then the protective semi-ring is loosened, the spring drives the telescopic rod to reset, the protective semi-ring fixes the inlet pipe, the separation pipe, the exhaust pipe and the manual valve, then the barrel cover and the inner barrel are well fixed through the fixing bolt, and the purposes that a pipeline is conveniently and rapidly fixed, installation is easy and flexible, and use is convenient are achieved. Later overhaul and maintenance are facilitated, and the sealing performance of the interface is guaranteed.

This utility model relates to the technical field of milling machine equipment, specifically to a waste chip cleaning device for milling machines. It includes a chip collecting plate located at the bottom of the milling machine, with a work platform installed inside. A suction head is mounted on the chip collecting plate, its suction end quickly snapped onto the chip sweeping end of a chip sweeping assembly. The pumping end of the suction head connects to the pumping assembly and a cleaning box. The cleaning box also includes a solid-liquid separation structure and a magnetic chip collecting assembly. The magnetic chip collecting assembly includes a permanent magnet cylinder, located inside the cleaning box below the pumping assembly. The solid-liquid separation structure includes a filter plate, located inside the cleaning box, for solid-liquid separation of the waste chips. The chip sweeping assembly includes a chip sweeping end located on the surface of the chip collecting plate and positioned on the displacement end of the displacement assembly, allowing for mobile chip sweeping. This utility model solves the technical problem of rapid classification and collection of waste chips from milling machines.

The application relates to a food packaging bag, a manufacturing method and a manufacturing device, and relates to the technical field of food packaging bags.The food packaging bag comprises at least two bag surfaces; the bag surfaces are connected oppositely to form a containing cavity; and recessed parts are arranged on the bag surfaces, wherein the recessed parts on the oppositely connected bag surfaces form air outlet channels, and the air outlet channels are in communication with the outside. The application has the effect of reducing the explosion phenomenon during food packaging bag processing.

This invention relates to the field of high-performance coatings and their application technology, and discloses a corrosion-resistant, fire-resistant, and explosion-proof material, its preparation method, and its application in power tunnels. The preparation method of the corrosion-resistant, fire-resistant, and explosion-proof material includes the following steps: preparing a silicon-containing compound and reacting it with epichlorohydrin and sodium hydroxide to obtain an epoxidized phosphosilicate compound; preparing a tripyridyl compound and reacting it with the epoxidized phosphosilicate compound to obtain a multifunctional modifier; mixing epoxy resin, loaded modified composite nanomaterials, the multifunctional modifier, additives, and a curing agent to obtain a corrosion-resistant and fire-resistant coating; and spraying the corrosion-resistant and fire-resistant coating onto a fire-resistant and explosion-proof substrate to obtain the corrosion-resistant, fire-resistant, and explosion-proof material. This invention, through the combined effect of the various layers of the fire-resistant and explosion-proof substrate and the corrosion-resistant and fire-resistant coating, enables the corrosion-resistant, fire-resistant, and explosion-proof material to possess excellent corrosion-resistant, fire-resistant, and explosion-proof properties. Its application in power tunnels can improve the safety of power tunnels.

The invention relates to a PEM hydrogen production device BOP system instrument centralized acceptance inspection and detection platform system and a PEM hydrogen production device BOP system instrument centralized acceptance inspection and detection method. The pressure supply unit comprises a gas pipeline, a pure hydrogen cylinder, a pure oxygen cylinder, a hydrogen pressure reducer and an oxygen pressure reducer, the hydrogen pressure reducer and the oxygen pressure reducer are correspondingly communicated with the pure hydrogen cylinder and the pure oxygen cylinder, and the gas pipeline is connected with the hydrogen pressure reducer and the oxygen pressure reducer; the oxygen buffer tank is provided with a plurality of groups of interfaces used for installing a plug-in water level gauge, a pressure detection instrument, a side-mounted liquid level meter and a temperature detection instrument, and an electric heater is arranged in the oxygen buffer tank; the water circulating unit comprises a circulating water pipeline circularly communicated with the oxygen buffer tank and a variable-frequency water pump, and the circulating water pipeline is provided with a plurality of groups of interfaces for mounting a conductivity detection instrument and a flow detection instrument; and the gas analysis unit comprises a hydrogen-in-oxygen analyzer, a trace oxygen analyzer and a dew point analyzer. The acceptance efficiency is improved, and the project risk and cost are reduced.

The utility model provides a kind of anti-explosion high-voltage cable branch box, including explosion-proof box, it includes inner layer box, outer layer box, cabinet door, reinforcing connecting piece, cable interface, silicon rubber cylinder, grounding structure, pressure relief port, pressure relief passage, elastic pressure relief shield piece;Arc generated in box is guided into ground in time using grounding structure, reduce the explosion problem caused by arc;When internal explosion occurs accidentally, explosion opens the movable part of the elastic pressure relief shield piece blocked outside the pressure relief passage to relieve pressure, reduce the impact of impact on explosion-proof box;The explosion-proof box formed by the reinforcing connecting piece between the inner layer box and the outer layer box has strong mechanical strength, better resist the residual explosion impact force after pressure relief, avoid the danger of device damage explosion.

The invention provides a battery monomer, a battery device and a power utilization device, an electrode terminal of the battery monomer is arranged on a wall part of a shell, an electrode assembly is accommodated in the shell, the electrode assembly comprises a first tab and a second tab which are opposite in polarity, and a current collector is positioned between the inner wall of the shell and the electrode assembly; the first connecting part and the second connecting part of the current collector are arranged at an interval, the fusing part is connected between the first connecting part and the second connecting part, the first connecting part is connected to the second tab, the second connecting part is connected to the inner wall of the shell, and the fusing part is configured to be capable of cutting off the connection between the first connecting part and the second connecting part. When short circuit occurs in the battery monomer and overcurrent occurs in the fusing part, the fusing part cuts off the connection between the first connecting part and the second connecting part due to the fact that the temperature exceeds the first threshold value, and a short-circuited loop in the battery monomer is cut off, so that the battery monomer has relatively high reliability, and the reliability of the battery device is improved.

The utility model relates to chemical explosion -proof storage tank technical field, concretely is a kind of chemical explosion -proof storage tank, including collection jar, closure lid and cooling device, closure lid is installed on the top end of collection jar, cooling device is set on the bottom end of collection jar, cooling device includes heat conduction column, and the inside fixed connection of collection jar is connected with heat conduction column, and the inside of heat conduction column is placed with isolating sleeve, and the bottom end of isolating sleeve is equipped with air inlet, and the inside fixed connection of isolating sleeve is connected with drive motor, and the drive end fixed connection of drive motor has fan blade, and fan blade is located in the inside of isolating sleeve, and the outside of isolating sleeve is equipped with air outlet, and air outlet is communicated with the inside of isolating sleeve, and the bottom end fixed connection of drive motor has battery, and battery is located in the inside of isolating sleeve.The utility model, by setting cooling device, can effectively cool storage tank, avoid the temperature influence chemical product in the inside of storage tank, and then reduce the situation that storage tank appears explosion.

The application discloses a deep learning-based Internet of Things device firmware vulnerability automatic mining method, comprising the following steps: S1, constructing an interface keyword set; S2, optimizing the interface keyword weight to generate a dynamic weight interface keyword library; S3, analyzing firmware binary files to locate an interface function set; S4, performing static slicing analysis to generate a slicing path set; S5, performing symbolic execution on the slicing path to generate path constraint conditions and solve effective input data; S6, combining historical vulnerability features to determine the vulnerability type and generate a vulnerability type identifier; S7, generating context prompt words according to vulnerability metadata information, inputting a large language model, and generating a vulnerability exploit code PoC; and S8, performing PoC verification to complete the vulnerability automatic mining. The application realizes the improvement of the firmware vulnerability automatic detection efficiency, enhances the vulnerability exploit generation capability, and is suitable for multiple types of Internet of Things device security detection scenes.

The application discloses a lithium ion battery, which comprises a positive electrode, a negative electrode, a diaphragm and an electrolyte, the negative electrode comprises a negative electrode material, the negative electrode material comprises a negative electrode active material and a coating layer, the coating layer comprises an ion-conducting material, and the inorganic component in the coating layer accounts for greater than or equal to 80 wt%; the electrolyte comprises a non-aqueous organic solvent and a lithium salt, the non-aqueous organic solvent comprises a solvent with high dielectric constant and low viscosity and ethylene carbonate, the volume fraction of the solvent with high dielectric constant and low viscosity in the non-aqueous organic solvent is greater than or equal to 10%, and the volume fraction of the ethylene carbonate in the non-aqueous organic solvent is less than or equal to 10%; and the concentration of lithium bisfluorosulfonylimide and / or lithium bis(trifluoromethylsulfonyl)imide in the lithium salt is less than or equal to 0.1 mol / L. By matching the negative electrode material with the specific type of coating layer and the electrolyte with the specific composition, the lithium ion battery has good fast-charging performance, and the risk of explosion and fire during thermal runaway of the battery is reduced.

The present disclosure relates to a battery pack shell assembly, a battery pack and an electric device. The shell assembly can include a shell and a hot-melt buffer structure, wherein the shell can be used to accommodate battery monomers, and the shell has an exhaust passage in the wall; the hot-melt buffer structure is arranged in the exhaust passage, and the hot-melt buffer structure is configured to be heat-melted to form an exhaust space when the battery monomers are in thermal runaway. The present disclosure sets the hot-melt buffer structure in the exhaust passage, which can ensure the normal use of the exhaust passage when the battery monomers are in thermal runaway, reduce or even avoid the damage of the battery monomers due to external force or the explosion of the battery monomers due to excessive air pressure, and improve the safety of the battery pack while improving the overall structural strength of the battery pack and absorbing at least part of the impact force.

The utility model relates to a kind of dust removal devices for automatic saturated magnetizing equipment, belong to dust removal device technical field, including dust collecting cylinder, the inside fixed mounting of dust collecting cylinder has filter plate, the upper end of dust collecting cylinder is provided with cylinder cover, the upper end side of cylinder cover is fixedly installed fan, the input end of fan is communicated with dust collecting cylinder, the inside fixed mounting of dust collecting cylinder has placing ring, processing assembly is installed on cylinder cover, the lower part of processing assembly is located the lower end of cylinder cover, the outside side of dust collecting cylinder is fixedly installed flexible hose, the other end of flexible hose is fixedly installed dust collecting head, the utility model is installed between filter plate and processing assembly by flexible hose, so that dust can enter into dust collecting cylinder, processing assembly can make dust fall on filter plate after condensation by water mist, to avoid dust escaping in dust collecting cylinder, reduce the occurrence of explosion condition, while processing assembly can expose filter plate when cylinder cover is opened, to facilitate user to collect dust on filter plate.