47 results about "Explosion hazard" patented technology

The invention discloses a coal mine coal dust explosion risk dynamic evaluation and explosion suppression system, which comprises a sensing module, a data processing module, a data processing module and a data processing module, wherein the sensing module is used for acquiring direct and indirect parameters of an underground environment; the central processing module is used for operating a risk assessment algorithm and generating a control instruction; the explosion suppression execution modules are distributed in pipelines and roadways of underground key nodes and are used for executing explosion suppression actions; the active chemical detection module is arranged in the main ventilation pipeline and is used for carrying out pre-chemical sampling and analysis on the inflowing air so as to judge the abnormal enrichment trend of the explosive gas; according to the system, a dynamic risk assessment system based on multi-source indirect perception and active chemical detection is constructed, and precise explosion suppression of time-space cooperation is realized. The method has the advantages of being capable of achieving early warning, dynamic evaluation and precise collaborative explosion suppression.

The invention discloses a multi-point explosion hazard effect evaluation test method and a multi-point explosion hazard effect evaluation test system. The method comprises the following steps: uniformly distributing a plurality of explosion sources with prefabricated fragments on the same circumference and synchronously detonating; determining abdominal line distribution based on a shock wave superposition principle, and dividing a reference ring, an inner ring and an outer ring by taking an explosion central point O as a circle center according to a predicted overpressure peak value; and cake-shaped and penholder-type free field pressure sensors, impulse targets, simulation dummies, pine targets and speed measurement targets are systematically arranged on each ring layer along the abdominal line direction. By synchronously collecting multi-parameter data such as shock wave pressure-time history, fragment speed, target deformation, human body reflection overpressure and the like, quantitative analysis of shock wave superposition and attenuation characteristics, fragment power field distribution, human body damage risk and explosion impulse aftereffect is realized. The problem that the multipoint explosion hazard effect lacks a standardized test means is solved, and data support is provided for protection equipment research and development and safety standard formulation.

The invention discloses a graded inerting device and method based on dynamic risk discriminating.The device comprises a continuous inerting system, a dust removal system and an efficient inerting system, the dust removal system comprises a dust removal main pipeline and a dust remover which are connected, the continuous inerting system comprises an inerting dust bin and feeding equipment, and the feeding equipment is connected with the dust removal main pipeline; the efficient inerting system comprises an efficient inerting powder tank; and the efficient inerting powder tank is connected with a dust remover. According to the method, the continuous inerting system and the efficient inerting system are used in a combined mode, the explosion risk of the main dust removal pipeline can be reduced through the continuous inerting system under the condition that the dust remover does not break down, and meanwhile the combustible dust explosion risk caused by the fault of the dust remover can be effectively controlled; the efficient inerting system is only triggered under the abnormal condition that the dust concentration of the dust remover is abnormally increased or explosion is generated, so that the energy consumption of fixed threshold inerting and the consumption of an inerting medium are effectively reduced, and more efficient inerting is realized.

1. Name of the product in this design: Power distribution device (explosion-proof high-voltage assembly for mining). 2. Purpose of this design: A high-voltage power supply and distribution device used in underground coal mines with explosion hazards for controlling, protecting, and measuring high-voltage power supply systems. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A multiply redundant safety system that protects humans and assets while transfer(s) / fuelling of on road / off road, rail, marine, aircraft, spacecraft, rockets, and all other vehicles / vessels utilizing Compressed and or Liquefied Gas Fuels / compound(s). Utilizing Natural Gas Chemical Family of Hydrogen / Propane / ethane / ammonia / and any mixtures along with or with out oxidizer(s), such as Liquefied Oxygen, Oxygen Triplet (O3) / ozone / hydrogen peroxide / peroxide / solid oxidizer(s) one or more processors, utilizing Artificial Intelligence techniques / machine learning in combination with one or more sensors; in combination with one or more micro switches / actuator(s) combine to detect any leaks / fire(s) / or explosion hazards / vehicle motion / arc's, spark(s) / and other hazards for quickly mitigating / locking out / stopping fueling / gas / transfers / vehicle releasing system(s).

This invention relates to the field of gas composition analysis technology, specifically to a method and terminal for detecting and classifying the composition of explosive hazardous gases. The method includes the following steps: acquiring sensor node tags and sampling data; constructing a composition monitoring sequence; extracting combinations of differential channel tags and time segments; matching a combustible gas composition table with sampling locations; classifying configurational components; mapping channels and time ranges; and obtaining the explosion hazard status identification result. In this invention, a composition distribution chain is constructed by fusing sensor tags and sampling time; the temporal overlap relationship of component combinations is extracted by combining multi-channel data; corresponding segment identifiers are established to complete the identification of the gas's coordinated change structure; a hierarchical association is established through the mapping relationship between tags and a set composition table; structural hierarchy is divided by distinguishing between repeating and non-repeating components; and spatiotemporal continuity mapping is performed by combining distribution trends and channel coverage. This facilitates the location and judgment of the accumulation process of risky components and enhances the response and linkage capabilities to explosion triggers.

The invention relates to a gas power plant explosion dangerous area alarm method and system, and the method comprises the steps: collecting a power grid load fluctuation input signal of a generator set and a corresponding power response output signal, and recognizing an event pair of which the similarity of the power grid load fluctuation input signal accords with a first similarity threshold within a time threshold range; and taking the power response output signal corresponding to the reference event as a reference response of the to-be-analyzed event. And on the basis, calculating a residual signal between an actual power response output signal of the event to be analyzed and the reference response, and identifying a power response unexpected form distortion characteristic caused by low-energy partial discharge in the generator rotor winding from the residual signal. And finally, according to the unexpected form distortion characteristics, early warning is given out for the explosion dangerous area of the gas power plant. According to the invention, the operation safety of the gas power plant is improved, and potential fire and explosion risks are avoided.

The invention belongs to the field of burning and explosion prevention, and relates to a pressure relief burning and explosion prevention system based on a flexible oil conservator and a using method of the pressure relief burning and explosion prevention system. In the pressure-relief anti-explosion system, a flexible oil conservator comprises a flexible conservator body and a rigid conservator body structure, one end of a main pressure-relief pipeline is communicated with the rigid conservator body structure, the other end of the main pressure-relief pipeline is communicated with a part of a point where a fire explosion fault easily occurs through a branch pressure-relief pipeline, and a pressure-relief opening device is arranged on the branch pressure-relief pipeline. The pressure relief opening device comprises a rupture disk and a clamping device, the two sides of the rupture disk are clamped through the clamping device, and the two ends of a fastening bolt penetrate through the connecting flanges and are screwed and fixed through fastening nuts. According to the using method of the pressure relief and explosion prevention system, components, which are prone to explosion faults and need to be subjected to pressure relief, of oil-filled electrical equipment are connected, and the components comprise an ascending flanged base, an on-load switch and a pressure relief valve opening. According to the rupture disk, the sealing performance of equipment during normal operation can be guaranteed, the rupture disk is exploded when a fault occurs, the flexible cabinet body structure provides enough pressure relief space, and the burning explosion risk of the equipment is reduced.

This invention relates to the design and technical fields of hydrogen catalytic combustion, thermoelectric power generation, and hydrogen refueling station lighting systems. Specifically, it relates to an intelligent hydrogen refueling station roof, which includes a catalytic combustion zone, a thermoelectric power generation zone, and a nighttime lighting system. Hydrogen undergoes catalytic combustion in the combustion zone, safely converting hydrogen energy into heat energy. The generated heat energy enters the thermoelectric power generation zone to generate electricity. The generated electricity is then supplied to the nighttime lighting system on the roof for nighttime illumination of the hydrogen refueling station. This invention alleviates the problem of excessive electricity consumption for nighttime lighting at hydrogen refueling stations and solves the safety issue of potential explosion hazards from leaked hydrogen, significantly improving the energy efficiency and safety of hydrogen refueling stations.

The invention relates to a mobile electrostatic protection instrument, which comprises a portable box body with a box cover; the emergency power supply is arranged in the portable box body; the electrostatic sensor is used for detecting electrostatic related parameters; the gas sensor is used for detecting the property and the concentration of combustible gas; the static electricity eliminator is used for releasing static electricity of the target body and is mounted in the portable box body; the grounding alarm is used for grounding qualification detection and alarm of a human body and a target body, and is mounted in the portable box body; and the controller is used for processing, storing and controlling related data. According to the mobile electrostatic protection instrument, through mutual cooperation of the electrostatic sensor, the gas sensor, the electrostatic eliminator, the controller and the grounding alarm, static electricity in an electrostatic hazard area can be effectively detected, eliminated and controlled, and the mobile electrostatic protection instrument can be conveniently applied to oil extraction and gas extraction production activities in the electrostatic hazard area; and real-time detection, monitoring, elimination and management and control of electrostatic hazards in explosion dangerous areas such as sampling of dangerous goods are realized.

The invention relates to a prediction method for simulating a steam cloud explosion consequence. The prediction method comprises the following steps: acquiring an ignition source position and leakage source information of natural gas pipeline leakage; the mass of combustible gas in the steam cloud is calculated through leakage source information, and the combustible boundary of the steam cloud is determined through the isoconcentration lines of the upper limit and the lower limit of explosion, namely the explosion hazard range of the steam cloud is generated; determining a death area, a property loss area and a collapsed building area by taking the position of the ignition source as an original point; calculating the population density in the steam cloud explosion hazard range; and inputting the parameters into a pre-trained emergency accident consequence model to obtain a prediction result of the number of dead people of the simulated steam cloud explosion shock waves. Compared with the prior art, the method has the remarkable advantages that the potential steam cloud explosion accident consequence and the probability of occurrence thereof are evaluated by establishing an emergency accident consequence model and performing comprehensive prediction through a simulation algorithm; and decision support is provided for subsequent development of an effective prevention mechanism and perfect emergency measures.

The application discloses a feed bag conveying equipment with a shaping function and belongs to the technical field of conveying equipment, which comprises an input belt, one end side of the input belt is provided with a shaping bin, one side of the shaping bin is provided with an output belt, one side of the output belt is provided with a mechanical arm, and the application further comprises: a homogenizing mechanism comprising a plurality of oscillation heads arranged in the interior of the shaping bin, a calendering mechanism comprising a plurality of contact plates arranged above the homogenizing mechanism, a side pulling mechanism comprising a plurality of upper clamping plates and lower clamping plates arranged on the two sides in the interior of the shaping bin, and the upper clamping plates and the lower clamping plates are arranged in pairs, the application realizes multi-dimensional collaborative shaping through the bottom matrix excitation of the homogenizing mechanism to break the lumps, the vertical compaction and transverse kneading and air exhaust of the calendering mechanism, and the active expansion and avoidance of the side pulling mechanism, eliminates the bag explosion hazards such as lump piercing, air pressure bursting and side edge cracking, greatly reduces the bag breaking rate, forcibly shapes the feed bag into a standard cuboid, and meets the stacking requirements of the end mechanical arm.

The invention provides a treatment system and method for high-sulfur-content and high-oxygen-content VOCs (volatile organic compounds) gas, in the treatment system, a gas explosion risk detection system is arranged on a pipeline between a fan system and an acid-making incineration system, and preset parameters corresponding to an explosion lower limit are set on the gas explosion risk detection system; the gas explosion risk degree detection system is configured to be communicated when the combustible matter concentration parameter in the VOCs gas of the rear-section pipeline of the air distribution system is lower than a preset parameter, and is disconnected and discharges the VOCs gas in the pipeline when the combustible matter concentration parameter is not lower than the preset parameter. According to the treatment system for the high-sulfur-content and high-oxygen-content VOCs gas, the VOCs gas in the VOCs gas collecting system serves as combustion air to be sent to the acid making incineration system, and therefore the problems that an existing negative pressure gas system cannot treat the high-oxygen-content VOCs gas, and a combustion furnace in an existing combustion method process cannot directly discharge the combusted high-sulfur-content VOCs gas are solved.

The utility model discloses a kind of gas-liquid separation drainage devices, a kind of gas-liquid separation drainage devices, including conduit, conduit communication separator, the inlet of the outlet of separator communication stop valve, the inlet of the outlet of stop valve communication first pneumatic valve, the inlet pipe of the outlet of first pneumatic valve communication liquid collecting tank, the top of liquid collecting tank is fixed and communicated with one end of air release pipe, the other end of air release pipe is fixed and communicated with the inlet of flame arrester, the outlet pipe of flame arrester is communicated with atmosphere. By centrifugal pump designed in liquid collecting tank outlet, waste liquid can be extracted from drainage pipeline in the process of water electrolysis device operation, avoid waste liquid corrosion pipeline, freeze crack pipeline. At the same time, the exhaust port of liquid collecting tank is connected to outdoor, effectively avoid hydrogen or oxygen in indoor gathering form explosive dangerous gas environment or oxygen-rich gas environment, enhance intrinsic safety, with the characteristics of high safety.

The application discloses a kind of hydrogen-doped natural gas pipeline leakage accident's explosion dangerous distance calculation method, belong to oil and gas safety technical field, comprising: step 1, according to the flow parameter of leakage hole under the condition of leakage;Step 2, establish hydrogen-doped natural gas pipeline leakage process mathematical model;Step 3, establish the geometric model of leakage area and divide grid;Step 4, determine the solution method of leakage model;Step 5, determine the explosion dangerous distance of hydrogen-doped natural gas pipeline leakage accident under different conditions;Step 6, fitting hydrogen-doped natural gas pipeline leakage accident's explosion dangerous distance calculation formula;Step 7, determine the accuracy of hydrogen-doped natural gas pipeline leakage accident's explosion dangerous distance calculation formula and application;The application is based on the fitting of hydrogen-doped natural gas pipeline leakage accident's explosion dangerous distance calculation formula according to the numerical simulation result of multiple conditions, can quickly calculate the explosion dangerous distance of leakage accident, provide guidance for the safety management of hydrogen-doped natural gas pipeline.

The invention discloses a method for preparing high-purity lithium sulfide and a safe ball milling system.The method comprises the following steps that S1, proportioning is conducted according to the molar ratio of lithium hydride to sulfur powder being (2-2.2): 1, and therefore the problems of heat accumulation and overheat loss caused by long-time continuous operation of equipment can be effectively avoided by adopting a batch standing operation mode, and the service life of the equipment is prolonged; according to the present invention, with the design of the multi-tank alternate cycle operation, the production operation efficiency is improved, the reaction environment and the process stability are optimized so as to significantly improve the product yield and the purity of the lithium sulfide, and the controllable design is adopted for the hydrogen emission link so as to reduce the production cost. The potential explosion hidden danger caused by hydrogen gathering is eliminated from the source, meanwhile, a real-time pressure monitoring and feedback mechanism is arranged in a matched mode, dynamic control over pressure parameters in the production process is achieved, protection is carried out with the assistance of an explosion-proof membrane, and therefore the safety of production operation is effectively improved.

The invention discloses a melting furnace with a preheating function, and belongs to the technical field of melting furnaces, the melting furnace comprises a shell and a melting furnace main body, the melting furnace main body is mounted in the shell, a preheating furnace and a purification box are mounted on the upper surface of the shell, a coil pipe is mounted in the preheating furnace, and two groups of clamping plates are mounted in the purification box; an activated carbon adsorption plate is clamped in each set of clamping plates, a combustor is arranged in the shell, and a clamping mechanism and a cleaning assembly are arranged in the purification box. Pollutants such as particulate matters and sulfur dioxide in flue gas can be doubly removed through a filter plate and an activated carbon adsorption plate, meanwhile, a first telescopic rod and a first spring are matched with a movable frame and a clamping block, and the activated carbon adsorption plate is fixed through a clamping plate, so that a filter part can be quickly disassembled and assembled, maintenance operation is facilitated, the leakage risk and the workshop harmful substance concentration are reduced, and the environment is protected. Occupational diseases and explosion hidden dangers are reduced, operation safety is guaranteed, impurities are prevented from being mixed into raw materials, and the consistency of product quality is improved.

The invention relates to the technical field of gas component analysis, in particular to an explosion hazardous gas component detection and danger grading method and a terminal, and the method comprises the following steps: obtaining sensing node labels and sampling data, constructing a component monitoring sequence, extracting a difference channel label combination and a time section, and matching a combustible gas component table with a sampling position. And dividing configuration components, mapping channels and time ranges, and obtaining an explosion danger state identification result. According to the method, a component distribution chain is constructed by fusing sensing tags and sampling time, a time overlapping relation of component combination is extracted in combination with multi-channel data, corresponding section identifiers are established, recognition of a gas collaborative change structure is completed, and affiliation association is established through a mapping relation between the tags and a set component table; according to the method, repeated and non-repeated component division structure hierarchies are distinguished, space-time continuous mapping is carried out in combination with a distribution trend and a channel coverage range, positioning judgment of a risk component aggregation process is promoted, and the explosion inducement response linkage capability is enhanced.

An explosion-proof intelligent temperature control tank container comprises a tank heat exchange tube system (4), the tank heat exchange tube system (4) being connected to an explosion-proof refrigeration unit (11) and an explosion-proof heating module (23), the explosion-proof refrigeration unit (11) being connected to an external pipeline (6), and an explosion-proof circulating liquid temperature sensor (8), an explosion-proof liquid level switch (9) and an inlet and outlet pipeline valve (10) are arranged on the external pipeline (6). The present explosion-proof intelligent temperature control tank container uses an explosion-preventing design, can be used normally in a specified explosion hazard environment, can monitor the state of cargo and equipment in real time, and can remotely operate and control equipment by means of a background system to prevent explosions.

The invention relates to the technical field of underground fuel cells, in particular to an underground tail emission treatment device which comprises an air inlet connector, a shell, a cyclone structure, a baffle, a ceramic carrier, glass wool, an air outlet connector and a water drainage connector. The water storage cavity is located below the hot air cavity, a cyclone structure is installed on an air inlet portion of the hot air cavity and connected with the inner wall of the hot air cavity through a rolling bearing, a water drainage hole communicated with the water storage cavity is formed in a baffle below the cyclone structure, and an air outlet portion of the hot air cavity is wrapped with glass wool. And a ceramic carrier is arranged between the air inlet part and the air outlet part of the hot air cavity. Compared with the prior art, the hydrogen explosion hidden danger is eliminated through the catalytic combustion reaction, the operation noise is reduced through the acoustic structure, and by-product water is treated through the internal design. The development of a standardized hydrogen elimination and noise reduction module meets the special requirements of underground vehicles and energy storage.

This application discloses an explosion-proof four-phase four-column reactor, belonging to the field of reactors. It includes a main body with heat dissipation fins, windings installed inside the main body, and a top cover; two symmetrical explosion-proof shells inside the main body; a circulating pump fixedly installed on the main body; and a side box located on one side of the main body. The heat dissipation fins are in two sets, respectively located on the front and rear sides of the main body. The front heat dissipation fins are connected to a main extraction pipe, which is connected to the oil inlet of the circulating pump. The beneficial effect of this application is that it provides an explosion-proof four-phase four-column reactor. Through the explosion-proof shells and baffles, in the event of a potential flash explosion risk, the two explosion-proof shells move from a first position to a second position, covering the windings to prevent flash explosion hazards and improve protective performance. Simultaneously, under normal conditions, it ensures the flow of insulating oil in all areas within the main body, preventing heat accumulation.

1. The name of the design product: keel (CH type special for explosion vent wall). 2. The use of the design product: the design product is used for the keel structure of the explosion vent wall of the building with explosion danger and explosion vent demand. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view. 5. Other circumstances that need to be explained: the design product is indefinite length product.

Commercial aircraft fuel tanks, such as the center wing tank or body tanks, can be subject to explosion hazard due to heating of the fuel from the environment around the tanks. In particular, the center tank may be located adjacent to the environmental control system that generates large amounts of heat. Various embodiments of the present disclosure reduce the flammability exposure of the fuel tank by insulating the tank from the hot compartment below and circulating colder fuel from the adjacent tanks.

A method for operating a blast furnace plant that includes a blast furnace, at least one material hopper for charging raw materials to the blast furnace, having a upper seal valve and a lower seal valve, and at least one hot stove that produces hot blast for the blast furnace, the method including at least one charging cycle with the following steps: opening the upper seal valve, introducing raw materials into the material hopper, closing the upper seal valve, pressure equalization of the material hopper with blast furnace top pressure, and opening the lower seal valve to discharge raw materials into the blast furnace, wherein, in order to provide a cost-effective way to minimize the explosion danger during operation of a top charging system, an offgas from the at least one hot stove is transferred by a transfer system to the at least one material hopper and, before the lower seal valve is opened, the offgas is injected into the material hopper.

1. Name of the product in this design: Power Supply Cabinet (General Type for Mining). 2. Application of this design: for the connection and distribution of electricity in coal mines without gas or coal dust explosion hazards, as well as in other similar underground industrial production sectors such as non-coal mines. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. Name of the design product: gas explosion-proof vibration motor (class I). 2. Use of the design product: the design product is used in methane and coal dust explosion hazard places to provide mechanical vibration source for vibration equipment. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

This invention relates to a fire extinguishing agent and a flame-retardant, explosion-proof self-extinguishing composition for fire and explosion prevention, as well as a method for preparing the same. This invention can prevent thermal runaway in lithium battery fires, achieving rapid and effective fire extinguishing. More specifically, this invention comprises deionized water and vanadium oxide. The components of this invention are mixed in specific proportions to reduce the high temperature and reignition risk in lithium battery fires, and to minimize the generation of harmful gases in electric vehicle fires, thereby reducing the risk of secondary fires and explosions.

The invention discloses a chemical solid dust drying process risk assessment and control method, and belongs to the technical field of chemical safety technology and engineering, and the method comprises the following steps: S10, assessing the thermal hazard of solid dust; s20, evaluating the electrostatic hazard of the solid dust; s30, evaluating the explosion hazard of the solid dust; and S40, evaluating the explosion severity of the solid dust. The risk assessment and control problem of the dust drying process can be solved, the production safety is guaranteed, and a scientific basis is provided for how to carry out assessment of the chemical solid dust drying process.