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10 results about "Deflagration" patented technology

Deflagration (Lat: de + flagrare, "to burn down") is subsonic combustion propagating through heat transfer; hot burning material heats the next layer of cold material and ignites it. Most "fires" found in daily life, from flames to explosions such as that of black powder, are deflagrations. This differs from detonation, which propagates supersonically through shock waves, decomposing a substance extremely quickly.

Deflagration classification protection system and method

ActiveCN121846570BClosed loopSafety control
This application belongs to the field of flammable and explosive environment safety control technology, and particularly relates to a graded explosion suppression protection system and method. The system includes: a monitoring module for monitoring environmental information within the monitored area; a signal processing module for generating graded early warning commands based on the environmental information; an explosion suppression execution module for executing explosion suppression actions according to the graded early warning commands; and a reset module for generating reset information to reset the explosion suppression execution module. Based on the cooperation of the monitoring module, signal processing module, and explosion suppression execution module, corresponding explosion suppression actions can be automatically triggered without manual intervention, realizing a complete and rapid safety protection closed loop from risk perception to proactive suppression. This significantly improves the speed and reliability from risk detection to proactive intervention, greatly reducing the safety risk in the monitored area. Based on the cooperation of the reset module with the signal processing module and explosion suppression execution module, the system can quickly return to standby status after explosion suppression, simplifying maintenance steps and reducing operating costs.
Owner:DALIAN UNIV OF TECH

A guide plate for air mixing

ActiveCN224470248UUniform and stable flowImprove combustion efficiencyThermodynamicsDeflagration
The utility model relates to a gas burner technical field, concretely relates to a kind of guide plate for mixing, including integrally-formed center ring part and outside ring part, the outside ring part is concentrically arranged with center ring part, center ring part forms the center through-hole matched with deflector, the edge of center through-hole is provided with several deflector mouth, when mixed gas of gas and air is transported to the below of guide plate from gas extraction pipeline, from deflector mouth place to rise to the above of guide plate.The utility model optimizes the structure of guide plate, and mixed gas of guide gas extraction pipeline is guided into the mixed cavity in the above, helps to realize the uniform stable flow of gas, has promoting effect for subsequent stable combustion, to improve the efficiency of combustion, avoid deflagration and eliminate explosion.
Owner:FOSHAN ZHAOTIAN GAS APPLIANCE CO LTD

Deflagration-proof cyclone filter device

An explosion-proof cyclone filter device relates to the field of waste gas treatment technology in monocrystalline silicon production. It includes: an inner cylinder; an outer cylinder fitted around the outer periphery of the inner cylinder, forming a sealed cooling chamber between them; a cooling water pipe installed within the cooling chamber and spirally coiled around the outer wall of the inner cylinder; and an air inlet pipe sealed and connected to the inner cylinder. The cooling water pipe extends from both ends of the outer cylinder, facilitating the introduction of cooling water. This rapidly reduces the temperature of the inner cylinder and red phosphorus dust to below the auto-ignition point of red phosphorus (260°C), thus eliminating the risk of spontaneous combustion of the red phosphorus dust due to high temperatures. Simultaneously, by introducing gas, the cooled red phosphorus dust in the inner cylinder undergoes an oxidation reaction with the gas, thereby achieving the harmless treatment of the red phosphorus dust. The combination of cooling and oxidation effectively prevents explosions during cleaning, thus avoiding damage to the cyclone filter and personal safety hazards to on-site personnel, and preventing fire accidents.
Owner:FERROTEC (NINGXIA) SEMICON TECH CO LTD

A gas jet

ActiveCN224454599UThermodynamicsJet flow
The utility model relates to a gas burner technical field, concretely relates to a kind of gas jet device, including support main body, support main body is connected with several gas supply components and several gas supply channels, at least one gas supply channel is connected with at least two gas supply components to provide gas.The utility model improves the setting mode of gas supply channel, supplies gas simultaneously by multiple gas supply components, improves the directionality of gas supply, is convenient to form uniform stable airflow, improves the stability and reliability of combustion, avoids the occurrence of deflagration and explosion during combustion.
Owner:FOSHAN ZHAOTIAN GAS APPLIANCE CO LTD

A flow divider for a burner mixing chamber

ActiveCN224470245UThermodynamicsDeflagration
This utility model relates to the field of gas burner technology, specifically to a flow divider plate for the mixing chamber of a burner. It includes an intermediate cylinder with an annular panel at its upper end. A plurality of air holes are evenly distributed along the circumference of the annular panel, extending obliquely from the lower surface to the upper surface of the annular panel. By optimizing the flow divider plate structure, this utility model guides the gas entering the mixing chamber of the burner, ensuring a stable flow and combustion from the lower chamber to the upper chamber. This avoids uneven gas flow or backflow, thus preventing deflagration during ignition and popping noises during ignition shutdown, thereby guaranteeing stable combustion.
Owner:FOSHAN ZHAOTIAN GAS APPLIANCE CO LTD

Wellhead structure to prevent falling into the pipe

ActiveCN224549200UEnvironmental engineeringDeflagration
The utility model provides a wellhead structure of preventing falling into pipeline, including integrative first part and second part, first part top has well lid, lower part side has first opening with second part intercommunication, second part bottom has second opening with shaft intercommunication, its characterized in that: having baffle at first opening, baffle links with well lid through cable, the sidewall of first part has ladder. According to the wellhead structure of preventing falling of the utility model, can prevent the occurrence of falling, deflagration danger under the premise of low cost, without electricity, not affecting the application of overhauling, also carries out low carbon treatment application to the flammable and explosive gas discharged in well, reduces environmental pollution.
Owner:HUISHENG PUMIN (BEIJING) CONSTRUCTION TECHNOLOGY CO LTD

Experimental device and experimental method for testing explosion resistance performance of vortex wave flow resistance fire system

PendingCN122150482AChemical analysis using combustionFlame arresterFlame propagation
The application discloses a vortex wave flow resistance fire resistance performance test experimental device and method, and the device comprises a visual square explosion pipeline, a vortex wave impedance type attenuation cavity system, a fire resistance system, an adjustable high-pressure ignition system, a high-frequency response explosion suppression system, a high-precision gas distribution system and a multi-parameter acquisition system. The device can realize visual research on the deflagration-to-detonation transition of non-uniform concentration gradient hydrogen, control the flame propagation speed and shock wave intensity entering the attenuation cavity, optimize the structure parameters of the attenuation cavity and establish an explosion parameter theoretical attenuation model. Through the change rule of the explosion resistance characteristics of the fire resistance device under multiple parameters, a quantitative relationship between the shock wave, flame propagation attenuation and the structure parameters of the fire resistance device is established, and quantitative analysis is conducted on the explosion resistance performance of the fire resistance device, the attenuation efficiency of the attenuation cavity and the quenching mechanism. The application fills the technical gaps in the deflagration-to-detonation transition mechanism of hydrogen under non-uniform concentration gradient, the flame and shock wave coupling attenuation mechanism and the quantitative characterization of the fire resistance device with multiple structure parameters.
Owner:NANJING TECH UNIV

A composite fracturing device and fracturing method based on the superposition of electric explosion-CO2 phase change-powder deflagration sequence.

PendingCN122360233AOrganic synthesisDeflagration
The application discloses a composite cracking device based on electric explosion-CO2 phase change-powder deflagration time sequence superposition and a cracking method thereof. The design of the composite cracking device organically integrates electric explosion shock wave, liquid CO2 phase change expansion energy and metal powder deflagration chemical energy into three energy sources. Through special energy conversion and time sequence control structure, the three energies are sequentially superimposed and released in the order of electric explosion-CO2 phase change-powder deflagration. The composite cracking device realizes organic synthesis and time sequence control release of the three energies. The technical scheme of the application avoids the inhibition of CO2 heat absorption on powder deflagration, realizes step-by-step amplification of energy, accurately controls the time interval of energy release, ensures that shock waves chase and superimpose in space propagation process in turn, and forms a composite wave with a higher peak value.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY +1

Micro-oil ignition protection method, device, equipment and medium for boiler equipment

PendingCN122359765AThermodynamicsBoiler furnace
This invention relates to the field of boiler equipment technology, and particularly to a method, device, equipment, and medium for micro-oil ignition protection in boiler equipment. The protection method includes: activating the micro-oil ignition mode of the burner when the valve on the supply pipeline is in the open state; acquiring the micro-oil ignition state of the burner and the combustion state of the boiler in real time during the micro-oil ignition mode; and determining that fuel accumulation conditions are met based on the micro-oil ignition state and combustion state, and then controlling the valve on the supply pipeline to be in the closed state. This invention, by monitoring the micro-oil ignition state of the burner and the combustion state of the boiler, forcibly closes the valve on the supply pipeline when both conditions are determined to meet fuel accumulation conditions, thus preventing the accumulation of unburned fuel, such as pulverized coal, in the boiler furnace from the source, thereby avoiding serious safety accidents such as deflagration caused by the accumulation of unburned pulverized coal in the boiler furnace.
Owner:ZOUPING BINNENG ENERGY TECH CO LTD +1

An updraft high efficiency burner

ActiveCN224470225UThermodynamicsDeflagration
The utility model relates to a gas burner technical field, concretely relates to an efficient burner of upper air inlet, including a plurality of with gas supply assembly cooperation's injection channel, injection channel mutually supports and forms the cyclone convergence chamber, is provided with the guide plate for guiding gas to flow upwards on the cyclone convergence chamber, is provided with the apron above the guide plate, and the apron cover is established in the guide plate rear and forms the annular gas mixing chamber, is provided with the splitter plate in the gas mixing chamber, and the splitter plate divides the gas mixing chamber into the upper chamber and lower chamber, the utility model discloses the structure of the injection channel of the burner and the structure of the gas mixing chamber above are improved, make the stable uniform cyclone after gas enters from outside, after entering the gas mixing chamber, can form the uniform stable combustion that is guided to the apron, effectively avoid the deflagration and the explosion phenomenon in the ignition combustion process, help to promote the efficiency of combustion, guarantee the safe and reliable of combustion.
Owner:FOSHAN ZHAOTIAN GAS APPLIANCE CO LTD