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108 results about "Gas explosion" patented technology

A gas explosion is an explosion resulting from mixing a gas, typically from a gas leak, with air in the presence of an ignition source. In household accidents, the principal explosive gases are those used for heating or cooking purposes such as natural gas, methane, propane, butane.In industrial explosions many other gases, like hydrogen, as well as evaporated (gaseous) gasoline (American ...

Building structure explosion multistage early warning and damage assessment integrated analysis method

The invention discloses a building structure explosion multistage early warning and damage assessment integrated analysis method, which relates to the field of building structure safety, and comprises a BIM-FEM model conversion module, an FEM explosion response and damage assessment module, an Internet of Things gas sensor acquisition module, an early warning analysis and grading early warning module and a data storage module. And an efficient automatic model conversion interface between the BIM and the FEM is developed. The interface realizes bidirectional data conversion between the BIM model and the finite element analysis model; a gas explosion load is applied to finite element analysis software, dynamic response and damage of each component under the gas explosion load are studied through numerical simulation, and anti-explosion damage evaluation attributes of each component are formed. The problem of low modeling efficiency of a complex structure in finite element analysis software is effectively solved, and automatic data extraction, model mapping and result write-back between the BIM model and the FEM model are realized.
Owner:GUANGZHOU UNIVERSITY

An experimental device for measuring the action characteristics of an overpressure relief device under water hammer conditions

This invention relates to the field of research on the operational characteristics of overpressure relief devices, and particularly to an experimental device for measuring the operational characteristics of overpressure relief devices under water hammer conditions. The device includes: a high-pressure air compressor, a frame, a piston accumulator, a quick-opening device, a high-pressure test assembly, and a high-frequency dynamic pressure sensor. This invention enables the measurement of operational characteristics under different pressure rise rate loads caused by water hammer phenomena on a test bench, providing an experimental platform for the research on the operational characteristics of overpressure relief devices under high pressure rise rates. The overall device is simple, quick, and stable. It effectively solves the problem of applying high pressure rise rate loads in current overpressure relief device operational characteristic measurement tests, overcomes the danger of using combustible gas explosions as pressure sources in existing operational characteristic measurement tests, and overcomes the shortcomings of existing test methods, such as long testing times, the need to calculate gas explosion pressure, and the difficulty in accurately controlling the pressure rise rate.
Owner:EAST CHINA UNIV OF SCI & TECH

A numerical characterization method of gas explosion damage based on biological living body damage correction

PendingCN122366048AElement modelBiomechanics
This invention discloses a numerical characterization method for gas explosion damage based on in vivo biological damage correction, belonging to the interdisciplinary field of explosion mechanics and biomedicine. The method first acquires multi-dimensional damage data of organisms in gas explosion experiments, constructs a fluid-structure interaction numerical model of the gas explosion flow field in the tunnel and a biomimetic finite element model of the organism, solves the model using an improved arbitrary Lagrange-Euler algorithm, and extracts dynamic biomechanical response parameters. A quantitative correlation between mechanical response and damage level is established through a multi-objective collaborative correction model and an ordered Probit correction model. After iterative optimization, a high-confidence gas explosion-induced biological damage prediction model is output. This invention forms a complete closed loop of simulation-experiment-correction, which can accurately characterize gas explosion biological damage, providing technical support for research on explosion injury mechanisms, assessment of protective effectiveness, and clinical diagnosis and treatment.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Non-explosive seismic source device and method of jarring

The application discloses a non-explosive seismic source device and a shock method for seismic exploration, relates to the technical fields of seismic exploration and blasting, and comprises a blasting cylinder, a top cover and a pipe plug, the pipe plug is arranged in the blasting cylinder, one end of the blasting cylinder is sealed, the other end is connected with the top cover through threads, and a gas-stopping pad, a sponge column and a gas generator are sequentially arranged in the blasting cylinder. The non-explosive seismic source device and the shock method for seismic exploration have the advantages of simple structure, easy material acquisition, no influence of the use environment, no harmful gas generation, no need of approval procedures, no need of a blasting operation certificate for an operator, easy operation after simple training, good coupling between the device and a stratum, use in complex terrain areas, use in water areas such as lakes and oceans, and high safety and good operability compared with a gas explosion seismic source.
Owner:JIANGHAN UNIVERSITY

A mine electromechanical equipment safety performance test bin

This utility model discloses a safety performance testing chamber for mining electromechanical equipment, including a chamber body, an explosion-proof door, an observation window, a top sealing mechanism, an intermediate sealing partition, a foundation, and pipeline interfaces. The chamber body is a rectangular steel structure, using a composite design of steel plates and grid-shaped reinforcing ribs, and is made of carbon steel and stainless steel composite materials, making it vibration-resistant and explosion-proof. The intermediate sealing partition is removable, dividing the chamber body into two small compartments or forming a complete large chamber, flexibly adapting to the testing of small or large diesel engines. The top sealing mechanism uses a U-shaped groove and a venting membrane seal, allowing for rapid pressure relief in the event of an explosion. The side walls are equipped with a rotating explosion-proof door and a high-temperature tempered glass observation window for easy entry, exit, and observation. The foundation is fixed with anchor bolts, and the interior and exterior of the chamber are coated with antistatic, flame-retardant, and rust-proof paint. This utility model can withstand the impact of a methane-air or methane-hydrogen-air mixture explosion, ensuring safety; it is suitable for verifying the safety performance of diesel engines in underground coal mines, and has the advantages of high efficiency, safety, and economy.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD

Half-explosion shear wave source based on high-pressure gas explosion near-field waveform regulation and control

The utility model discloses a semi-explosion type transverse wave source based on high-pressure gas explosion near-field waveform regulation and control, which comprises a cylindrical detonation tube, a gas chamber is arranged in the detonation tube, one side of the gas chamber is an arc-shaped surface, the central axis of the arc-shaped surface is consistent with that of the detonation tube, the other side of the gas chamber is an isolation surface, and the isolation surface is arranged on the detonation tube. A groove consistent with the detonation tube in the extending direction is formed in the side, close to the isolation face, of the tube wall of the detonation tube to form a waveform regulation and control chamber, an annular notch groove is formed in the side, close to the arc-shaped face, of the tube wall of the detonation tube, and sealing heads are arranged at the two ends of the detonation tube. The semi-explosive shear wave source realizes near-field waveform regulation and control on a high-pressure gas detonation pressure field through structural design, performs near-field waveform regulation and control on the pressure field generated by detonation through structural design of the detonation tube, enables the energy proportion of a generated shear wave signal to be amplified, is a brand-new shear wave source generation way, and can be applied to the field of high-pressure gas detonation. The system has the advantages of being strong in transverse wave signal, environmentally friendly, good in economical efficiency, good in field adaptability and the like.
Owner:INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS

Dry-type flame arrester for coal mine gas conveying pipeline

The utility model discloses a dry-type flame arrester for a coal mine gas conveying pipeline, which relates to the technical field of flame arresting of the coal mine gas conveying pipeline and comprises a shell component, a flame arresting part and a fastener. Through the combined design of the fire-retardant sleeve, the stainless steel wire mesh and the corrugated plate type fire-retardant disc, flame propagation can be effectively blocked, and gas explosion accidents are prevented; the flame arrester adopts the design of the shell assembly and the flame arresting part which are in mirror symmetry, is convenient to install and maintain, and ensures the stability of the structure through the connection of a fastener; the flame arrester is suitable for gas conveying pipelines with different pipe diameters, can meet the use requirements under different pressure conditions, and is wide in application range; when the gas passes through the flame arrester at the average flow speed of 15m / s, the pressure drop is less than or equal to 1kPa, so that the gas conveying efficiency is not influenced; in conclusion, the dry type flame arrester provided by the utility model can effectively solve the explosion problem in a coal mine gas conveying pipeline, insulates flame propagation, ensures the production safety of a coal mine, and has a wide application prospect.
Owner:DALIAN DUDA POLYTECHNIC SAFETY ENG CO LTD

High-pressure gas explosion test system in porous digital caustic experiment system

The invention belongs to the technical field of explosion mechanics and experimental stress analysis, and particularly discloses a high-pressure gas explosion test system in a porous digital caustic experimental system. The system comprises a high-pressure gas explosion generation subsystem, a porous caustic optical measurement subsystem, a data acquisition and processing subsystem and an integrated control and synchronous triggering subsystem. Real-time segmentation and feature extraction are carried out on the image through the FPGA module to compress data, accurate synchronization of time sequences of explosion, illumination and acquisition is ensured through synchronous triggering, and efficient, reliable and automatic observation and analysis of an explosion transient physical field are achieved. The system is not only suitable for standard blast wave research, but also can be flexibly adapted to simulation of a complex turbulent flow field, research of wave system interaction and other frontier scientific problems, and the application boundary and scientific research value of the porous digital caustics technology are expanded.
Owner:MIANYANG SCIENCE & TECHNOLOGY CITY NEW DISTRICT SPECIAL MATERIALS IND TECHNOLOGY RESEARCH INSTITUTE

Gas-fuelled rock breaking pipe

The utility model discloses a kind of gas combustion type gravel blasting pipes, belong to gravel blasting pipe technical field.It is provided with core combustion chamber in pipe body, oxygen storehouse is fixedly arranged in core combustion chamber, oxygen hole is opened in the side of oxygen storehouse center, oxygen sealing strip that oxygen hole is sealed is arranged on oxygen hole, the top of pipe body is fixedly connected with expansion cap, the inside of expansion cap is hollow and is formed into gas storage warehouse, electric detonator is installed in the inside of expansion cap, the bottom of electric detonator extends into core combustion chamber.The utility model, when expansion cap is blocked to gravel lead hole, make gas explosion tube more stable and be fixed in lead hole, after pipe body detonation, the energy generated will be blown from lead hole, effectively reduce energy from lead hole leakage, gravel effect is better, and adopt hydrogen and oxygen as combustible gas, clean energy, more environmentally friendly and safe, after ignition, it can be detonated, detonation efficiency is high, meet engineering immediacy demand.
Owner:POWERCHINA HUADONG ENG CORP LTD +1

Sediment stirring machine

The utility model discloses a sediment stirring machine and relates to the technical field of engineering machinery. The device comprises a support and an upper opening stirring box at the top of the support, an air explosion pipe with an air outlet hole is longitudinally arranged in the box and connected with an air pump, a chain transmission mechanism with a baffle is arranged at the top of the box, and a double-rotating-shaft tool bit assembly and a mud driving plate are arranged on the lower portion of a transverse rod movably installed on a chain. Bubble flow is generated through a gas explosion pipe to prevent sediment deposition, a motor drives a chain to drive a cross rod to reciprocate, the rotary tool bit achieves all-directional stirring cutting, and stirring dead angles are eliminated in cooperation with a mud driving plate. A chute I controlled by a pneumatic gate is arranged on the right side of the stirring box, is connected with a rotary filter cage in the sludge storage box for impurity separation, and is matched with a cleaning brush self-cleaning and water pump drainage system. The equipment integrates the functions of gas explosion disturbance, mechanical cutting and scraping and sweeping, adopts the automatic control box to coordinate the operation of each unit, effectively solves the problem of sediment hardening, and remarkably improves the stirring uniformity and the treatment efficiency.
Owner:上海勇创环境岩土工程有限公司

Self-mixing gas explosion limit testing device

This invention discloses a self-mixing gas explosion limit testing device, belonging to the technical field of gas explosion limit testing devices. The self-mixing gas explosion limit testing device includes a base, a mounting frame mounted on the base, an explosion chamber mounted on the mounting frame, an exhaust component mounted on the explosion chamber, an igniter mounted on the explosion chamber, an inlet component and a stirring component inside the explosion chamber, and an exhaust component below the base. The exhaust component includes a transmission component and an energy storage component. Simultaneously with the input of gas, the stirring component mixes the gas, improving mixing uniformity and speed. This stirring method achieves rapid gas homogenization without compromising sealing, improving mixing effect while preventing gas leakage and ensuring testing effectiveness. By combining the exhaust component and the energy storage component, the high-pressure gas generated during the explosion test is utilized to clean the explosion chamber, further improving testing effectiveness and resource utilization.
Owner:KUNSHAN MOTIS FIRE TECH CO LTD

Gas pipeline water mist explosion-proof device

ActiveCN117462892Bconditions that cause rustreduce concentrationFire rescueEnvironmental engineeringFan blade
The application provides a gas conveying pipeline fine water mist explosion-proof device, which comprises a long pipe, a plurality of atomizing nozzles, a communicating cavity arranged in the long pipe, a water pipe communicated with one end of the communicating cavity, and a drainage cleaning mechanism arranged on the arc surface of the long pipe. The drainage cleaning mechanism comprises a leakage hole, a cylinder and a fan blade assembly. The leakage hole is arranged on the arc surface of the long pipe, the cylinder is inserted into the leakage hole, and the fan blade assembly is arranged in the cylinder. The arc surface of the long pipe is provided with a square hole. The gas in the pipeline is sprayed by the atomizing nozzles, so that the concentration of the gas is reduced, and the gas explosion is prevented to a certain extent. The water in the pipeline is discharged through the cylinder and the leakage hole, so that the rusting of the pipeline caused by excessive water in the pipeline is avoided.
Owner:SHAANXI BINCHANG NEW ENERGY CO LTD

Mine thermodynamic disaster detection and prevention integrated intelligent cooperative emergency method and system

The invention relates to the technical field of mine safety monitoring and disaster prevention and control, and provides a mine thermodynamic disaster detection and prevention integrated intelligent cooperative emergency method and system aiming at the problems of detection and prevention separation, response lag and model staticization in the prior art. Establishing a disaster identification model by using a machine learning algorithm to realize dynamic identification and risk grading of coal spontaneous combustion and gas explosion; a cooperative emergency instruction is automatically generated according to the risk level, and an underground prevention and control device is linked based on the cooperative emergency instruction to perform operations such as gas extraction, ventilation adjustment and spray cooling, so that synchronous response of early warning and prevention and control is realized; the system has a self-learning optimization capability, and continuously corrects a model and a strategy through backtracking analysis. According to the invention, accurate early warning, quick response and dynamic optimization of disaster prevention and control are realized, and the intelligent level and intrinsic safety capability of mine safety management are remarkably improved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Ton barrel connection table and method

The invention relates to the technical field of tungsten carbide powder production, in particular to a ton barrel connection table and method, the ton barrel connection table comprises a base, a bearing frame, a material receiving pipe and a control system, the base is provided with a weighing mechanism, and the bearing frame is installed on the base and provided with a vibration mechanism; the material receiving pipe is elastically installed on the bearing frame and connected with a discharging opening of the ton barrel and the feeding pipe. A gas explosion device, a cover replacing device and a ton barrel locking mechanism can be additionally arranged, and all the components are electrically connected with the control system. The ton barrel connection method comprises the steps of parameter setting, ton barrel butt joint valve opening, weighing vibration triggering and empty weighing valve closing barrel changing, and full-process automation of ton barrel fixing, discharging, residue cleaning and cover changing is achieved. Intelligent linkage of weighing and discharging is achieved, material loss is reduced, the residue cleaning efficiency and the equipment universality are improved, the device is matched with an AGV and an upper-layer production system, and the continuous operation requirement of an intelligent tungsten carbide powder production line is met.
Owner:HUNAN HUICHUANG ZHIZAO AUTOMATION TECH CO LTD

Application of Prunus cerasifera leaf extract in inhibition of hydrogen production caused by active metal dust encountering water

The invention relates to an application of a purple-leaf plum leaf extract in inhibiting hydrogen production of active metal dust when encountering water, and belongs to the field of hydrogen production explosion prevention and treatment of a wet dust removal system. The industrial hydrogen inerting agent which is efficient, non-toxic and low in cost is developed through a simple water-based extraction process by taking a renewable plant resource purple-leaf plum leaf as a raw material, the behavior that active metal dust in a wet dust removal system generates hydrogen when encountering water can be effectively inhibited, and gas explosion caused by hydrogen accumulation in the system is prevented. The purple-leaf plum leaf extract provided by the invention is used as a hydrogen explosion inerting agent of a wet dust removal system and has the characteristics of economy, environmental protection and degradability.
Owner:NORTHEASTERN UNIV CHINA

Anti-reflux device used under mine

The utility model discloses an anti-reflux device used under a mine, which comprises a fixed plate fixedly mounted on a wall surface, the fixed plate is positioned above an adjusting air window, two support rods are vertically and forwards arranged on the front surface of the fixed plate, a separation plate is hinged below the support rods through a connecting seat, and a rotating shaft is rotatably connected between the two support rods. When coal and gas outburst or gas explosion occurs, shock waves generated by the explosion firstly impact the shock wave bearing plate, the shock wave bearing plate rotates backwards, the lap joint of the isolation plate and the shock wave bearing plate is loosened, and the isolation plate and the shock wave bearing plate naturally rotate and droop. An adjusting air window or a belt hole is closed, poisonous and harmful gas is prevented from diffusing out of the air door, and safety risks are reduced.
Owner:GUIZHOU QIANXI HONGLIN MINING CO LTD

Coal mine safety risk intelligent early warning method empowered by large language model

ActiveCN121616115BAccurate early warningPrecise and targeted treatmentData processing applicationsBiological modelsLinguistic modelGas explosion
The application relates to a coal mine safety risk intelligent early warning method based on a large language model, and relates to the technical field of coal mine safety risk early warning, and comprises the following steps: acquiring multi-source heterogeneous monitoring data, and constructing a safety event narrative flow based on the physical cause-effect relationship among gas emission, ventilation dilution and ignition source appearance; performing semantic analysis on the safety event narrative flow, extracting a risk representation and a chain reaction path, and fusing a dynamic underground environment entropy to calculate a gas explosion risk entropy value; inputting the gas explosion risk entropy value and the corresponding risk representation into a large language model to generate a risk narrative description; performing scene-based risk mode matching and deconstruction on the risk narrative description and the safety event narrative flow, identifying and associating key risk elements and composite risk structures, and dynamically generating an early warning level and a disposal strategy plan. The application solves the problem that the traditional coal mine safety risk early warning is not sensitive to unknown and composite risks due to the dependence on preset rules and thresholds, and the early warning accuracy is insufficient.
Owner:HUAXIA TIANXIN IOT TECH CO LTD

A device for studying the explosive-oil and gas explosion coupling

The application relates to the technical field of explosive and oil-gas explosion experiment, in particular to a device for studying explosive and oil-gas explosion coupling effect, and the experimental research equipment comprises a filling cavity for accommodating mixed oil-gas and explosive, one end of the filling cavity is sealed and blocked and provided with a film, a second detection device for detecting explosion shock wave conduction waveform is arranged between the explosive and the film, and a first detection device for detecting explosion conduction waveform and pressure is arranged on the outer wall of the filling cavity. Beneficial effects: the device with the detection device and the fan is arranged, so that the simulation of explosive and oil-gas explosion coupling is detected, various data generated in the coupling process are detected, the power and the destructive power generated by explosion can be accurately analyzed, targeted protection can be made, and oil-gas transportation safety is improved.
Owner:NANJING UNIV OF SCI & TECH

Gas explosion cavity structure for pole piece powder removal and powder removal device

The invention discloses a gas explosion cavity structure for pole piece powder removal and a powder removal device, relates to the technical field of pole piece powder removal, and aims to solve the problem of how to improve the purity of pole powder recycled from a waste lithium battery. The gas explosion cavity structure comprises a cavity body and a material guiding structure, the cavity body is provided with a gas explosion cavity, a gas inlet and a feeding port, the gas inlet is used for introducing high-pressure pulse gas flow into the gas explosion cavity, and the feeding port is used for conveying materials into the gas explosion cavity; the material guide structure is positioned in the gas explosion cavity and is positioned below the gas inlet and the material inlet; in the horizontal direction, the gas explosion cavity is provided with a first inner wall face and a second inner wall face which are opposite, the material guiding structures comprise the first material guiding structure and the second material guiding structure, the first material guiding structure is connected to the first inner wall face, and the second material guiding structure is connected to the second inner wall face; the first material guiding structures and the second material guiding structures are arranged at intervals in the vertical direction, and in the vertical direction, at least part of the projection of the first material guiding structures coincides with at least part of the projection of the second material guiding structures.
Owner:HENAN JUFENG ECO TECH CO LTD

Dry-type drilling three-proofing pneumatic curve conveying device

The utility model discloses a dry-type drilling three-proofing pneumatic curve conveying device, which belongs to the technical field of coal mine underground security equipment and comprises a frame body assembly, a drilling machine assembly, a cyclone dust and slag separator, a gas collector, a pneumatic spiral conveying device, a gas collecting pipe and a dust and slag collector. The cyclone dust and slag separator comprises an air inlet box body and a separation barrel, and the separation barrel is communicated with the air inlet box body; the drill rod sequentially penetrates through the air inlet box body and the dust slag collector; the gas collector is connected with the top of the separating cylinder through a dust conveying pipe; and the gas collecting pipe is communicated with the top of the gas collector. The separating cylinder is used for separating dust and slag, the pneumatic spiral conveying device continuously outputs slag, and gas is collected by the gas collecting pipe, so that the three-proofing function of dry type drilling is realized, the potential safety hazard in drilling is solved, power is provided only by underground compressed air, sparks are not generated, and gas explosion is avoided; modularized design is achieved, flexible dismounting and using can be achieved, and practicability is good.
Owner:苏风青 +1

Microalgae wall breaking method by coupling low-concentration acid with gas blasting

The invention belongs to the technical field of microalgae processing, and particularly discloses a low-concentration acid coupled gas blasting microalgae wall breaking method which comprises the following steps: mixing microalgae and a low-concentration acid solution, putting the mixture into a pressure-resistant reactor, and sealing the reaction kettle; introducing gas into the reactor to increase the system pressure to a preset value; then heating the reaction system to a preset temperature, and carrying out a stirring reaction; after the reaction is finished, the reactor is subjected to rapid pressure relief, and the microalgae wall breaking process is completed through rapid expansion of dissolved gas. The method is used for microalgae wall breaking, conditions are mild, wall breaking efficiency is high, energy consumption is low, equipment requirements are simple, operation is safe, and the problems that in the prior art, wall breaking efficiency is low, conditions are harsh, and the method is not suitable for industrial production can be solved.
Owner:SHANGHAI OCEAN UNIV

Flue gas desulfurization device

The invention relates to the technical field of flue gas dry desulfurization, in particular to a flue gas desulfurization device which comprises a treatment chamber and a gas flow pipeline for introducing flue gas into the treatment chamber, the gas flow pipeline is shunted to a straight discharge pipe and a branch discharge pipe from an inlet end, a grid for separating dust is arranged at the intersection, and the branch discharge pipe discharges gas from bottom to top; the axis of the separating and bearing mechanism is a gas explosion channel formed by a uniparted hyperboloid. The desulfurization agent is arranged at the front position of the activated carbon treatment device, the pressure of subsequent desulfurization is reduced through desulfurization, the desulfurization agent can react sulfide with great efficiency, subsequent activated carbon can achieve third-time filtration, the floating ring is arranged in the waist groove in a sleeved mode, the activated carbon rod is arranged on the floating ring in a sleeved mode, and therefore the desulfurization effect is improved. The activated carbon rod moves up and down in the waist groove, so that attached dust can be vibrated down, the dust attached to the activated carbon rod is prevented from being accumulated, the flowing speed of purified airflow is prevented from being influenced, the dust can be cleaned on line, and the desulfurization quality is improved.
Owner:LIANYUNGANG GUOHU NEW ENERGY TECHNOLOGY CO LTD

Explosion-proof water mist hydrogen production device

The application relates to the technical field of water mist hydrogen production, and particularly discloses an explosion-proof water mist hydrogen production device, which comprises a support base, a water tank is fixedly connected to the top of the support base, the bottom of the water tank is fixedly connected with the water inlet of a first water pump through a pipeline, the water outlet of the first water pump is connected with a filter water tank device through a pipeline, one side of the filter water tank device is connected with the water inlet of a second water pump through a pipeline, the water outlet of the second water pump is connected with a first valve through a pipeline, the first valve is connected with a hydrogen gas manufacturing device through a pipeline, the top of the hydrogen gas manufacturing device is connected with a hydrogen gas explosion-proof device through a pipeline, the bottom of the hydrogen gas manufacturing device is connected with the water inlet of a third water pump through a pipeline, and the water outlet of the third water pump is connected with a waste liquid tank through a pipeline. The explosion-proof water mist hydrogen production device produces hydrogen gas through sufficient reaction of water mist in the hydrogen gas manufacturing device, and improves the safety of hydrogen production through the hydrogen gas explosion-proof device.
Owner:HENGSHUI TAIBO CONSTRUCTION ENGINEERING CO LTD

Gas explosion simulation experiment device in goaf spontaneous ignition environment

The utility model discloses a gas explosion simulation experiment device in a goaf spontaneous ignition environment, and belongs to the technical field of coal mine goaf gas explosion disaster prevention and control. Comprising a goaf coal spontaneous combustion simulation system and a gas explosion simulation system. The goaf coal spontaneous combustion simulation system comprises a gas cylinder, a temperature programming box, a gas chromatograph and a computer; the gas explosion simulation system comprises a spherical explosion device, a cavity heating and temperature control device, a gas distribution device, a vacuum pump, a control box and an ignition energy generator; the computer is connected with the control box; according to the utility model, the goaf coal spontaneous combustion experimental device and the gas explosion experimental device are linked and combined to form an integrated experimental platform, so that the problem that the gas explosion characteristic is unclear under the synergistic effect of the temperature of a goaf spontaneous combustion environment and multi-element gas is solved.
Owner:SHANXI LUAN ENVIRONMENTAL ENERGY DEV CO LTD +1

Fire retarding and explosion venting device for coal mine gas conveying pipeline

The utility model discloses a fire-retarding and explosion-venting device for a coal mine gas conveying pipeline, which relates to the technical field of fire-retarding and explosion-venting for coal mine gas conveying and comprises a gas inlet pipeline, a gas outlet pipeline, an explosion-venting component, sealing water, a water level controller, a glass tube water level gauge and a metal shunting net, the fire-retardant explosion venting device can be of a single-barrel structure or a double-barrel structure; according to the utility model, flame propagation is effectively blocked by arranging the metal shunting net and sealing water, so that the safety of gas conveying is ensured; the explosion venting component can quickly release pressure when the pressure in the pipeline is suddenly increased, so that the harm of explosion accidents is reduced; the bent pipe design of the gas inlet pipeline and the gas outlet pipeline ensures that gas cannot leak in the conveying process, and the overall sealing performance of the device is improved; in conclusion, the gas explosion can be effectively prevented, the pressure can be quickly released when the explosion occurs, the safety production of a coal mine is guaranteed, and the gas explosion prevention device has remarkable economic and social benefits.
Owner:DALIAN DUDA POLYTECHNIC SAFETY ENG CO LTD

Explosion-proof flame arrester and tail gas treatment device

The utility model relates to the technical field of diesel engine tail gas explosion prevention, in particular to an explosion-proof flame arrester and a tail gas treatment device. The explosion-proof flame arrester comprises an equipment main body, a cover plate and a flame-retardant filler, the equipment main body is provided with anti-explosion combination surfaces which are oppositely arranged, and each anti-explosion combination surface is provided with a plurality of air holes; one end of the equipment main body is open, and a filling cavity is formed inside; the cover plate is hinged to the equipment body and used for opening or closing the open end of the equipment body. And the filling cavity is filled with the fire-retardant filler. By arranging the hinged cover plate on the equipment main body, when the fire-retardant filler in the filling cavity needs to be maintained and replaced, the fire-retardant filler can be taken out by rotating the cover plate to open the open end of the equipment main body, the explosion-proof flame arrester has the characteristics of simple structure and convenience in operation, and compared with the prior art, the maintenance process of the explosion-proof flame arrester is simplified, and the maintenance efficiency is improved. And the operation efficiency is greatly improved.
Owner:JIANGSU SAIFU INTELLIGENT EQUIP CO LTD

Solid hydrogen storage container device capable of ensuring test safety and test method

The invention discloses a solid hydrogen storage container device capable of guaranteeing test safety and a test method.The solid hydrogen storage container device comprises a gas supply structure, the gas supply structure comprises a gas supply shell and a gas supply assembly arranged on the back of the gas supply shell, at least one fixing structure is arranged in the gas supply shell, and the fixing structure comprises a leakage cabin. According to the device, protection can be provided for the leakage problem in the cyclic test process of the device, when the device leaks, a gas source can be rapidly cut off, and high-pressure hydrogen in the device can be rapidly subjected to gas pressure balancing operation, so that the problem of explosion of the high-pressure hydrogen is avoided; the high-pressure hydrogen storage device has the advantages that the high-pressure hydrogen can be stored in the high-pressure hydrogen storage device, the pressure of the high-pressure hydrogen in the high-pressure hydrogen storage device is equalized, and the problem that the high-pressure hydrogen completely explodes in the high-pressure hydrogen storage device is avoided.
Owner:NANCHANG CAMPUS OF EAST CHINA UNIV OF TECH

Organic waste liquid compatibility device

The utility model relates to the field of hazardous waste treatment equipment, in particular to an organic waste liquid compatibility device which comprises a negative pressure compatibility unit, an absorption unit and a support, the absorption unit is arranged on one side of the negative pressure compatibility unit, and the negative pressure compatibility unit is provided with a negative pressure reaction tank and a negative pressure suction pipe communicated with the negative pressure reaction tank. The absorption unit is provided with a water tank and a waste gas collecting pipe, one end of the waste gas collecting pipe is inserted into water liquid contained in the water tank, and the other end of the waste gas collecting pipe is arranged in the negative pressure reaction tank. According to the utility model, the sealed negative pressure cavity of the negative pressure reaction tank fixedly connected with the tank cover and the gas pressure sensor for automatically detecting the pressure are utilized to prevent gas explosion in the organic waste liquid compatibility process; volatilized gas in the negative pressure reaction tank is conveyed into water liquid stored in a water tank of the absorption unit through a waste gas collecting pipe of the absorption unit to be absorbed, and therefore the risk that the surrounding environment is affected and operators are injured during organic waste liquid compatibility can be avoided.
Owner:福建兴业东江环保科技有限公司

Treatment system and method for VOCs gas with high sulfur content and oxygen content

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.
Owner:SHANGHAI MEISHAN IND CIVIL ENG DESIGN & RES INST CO LTD +1

Low-pressure gas explosion fountain

The utility model discloses a low-pressure gas explosion fountain which comprises a barrel body, the barrel body is provided with a pneumatic valve and an electromagnetic valve, the pneumatic valve is externally connected with an air pump and is provided with an air outlet pipe, the air outlet pipe extends into the barrel body, and the electromagnetic valve controls the opening and closing actions of the pneumatic valve. According to the low-pressure gas explosion fountain, the electromagnetic valve is used for outputting small-flow gas into the pneumatic valve, opening and closing of the pneumatic valve are controlled, the pneumatic valve provides sufficient large-flow pressurized gas into the gas explosion fountain, and therefore higher water columns and loud roars can be generated, and the using effect is better; in addition, a valve body for directly controlling working gas is replaced by a pneumatic valve from an electromagnetic valve, so that the control response time is greatly shortened, the control sensitivity is improved, and a low-pressure gas explosion fountain matrix is more natural and smooth in presentation.
Owner:BEIJING SAINUO YANGGUANG TECH CO LTD