8 results about "Inert gas dilution" patented technology

The invention belongs to the field of power equipment fire extinguishing, and particularly relates to an automatic fire extinguishing energy storage cabinet which comprises an air inlet mechanism, a carrying mechanism and a fire extinguishing mechanism. Through the gas inlet mechanism and the carrying mechanism, when a main line is disconnected, the interior is sealed, inert gas is added, internal oxygen is diluted, the fire behavior is reduced, meanwhile, loss can be effectively reduced, and the technical effect of low-loss fire extinguishing is achieved; when the fire behavior cannot be controlled, air pressure in the air inlet mechanism and the carrying mechanism can be exhausted through the pressure release valve, and the temperature threshold value of the thermosensitive element is triggered by gas passing through the pressure release valve, so that the electric control valve is started, and a water-based solution in the water-based bottle is sprayed out of the fire-fighting spray head after passing through the flow dividing pipeline and the liquid conveying channel to extinguish fire; efficient fire extinguishing is achieved when loss cannot be reduced, and the technical problems that existing equipment is not timely in fire extinguishing, and loss cannot be reduced are solved.

The application relates to the technical field of electric appliance cabinets, and discloses an outdoor protection type electric appliance cabinet applied to a power system, which comprises an electric appliance cabinet main body, a bottom box fixedly installed at the bottom of the electric appliance cabinet main body, a plurality of gas tanks arranged in the bottom box, a plurality of air injection pipes arranged on the cabinet door of the electric appliance cabinet main body, a gas conveying pipe jointly connected between the plurality of gas tanks and the plurality of air injection pipes, a sealing assembly arranged on the inner wall of the electric appliance cabinet main body at a ventilation opening, and drive mechanisms arranged at the two ends of one of the air injection pipes, wherein the drive mechanisms are used for driving a baffle to rotate to seal the ventilation hole. While the air injection pipes inject inert gas into the cabinet body, the gas pressure drives the connecting rod to ascend to release the limit of the baffle, the baffle rotates downward to seal the ventilation opening, the ventilation hole is sealed, the oxygen in the cabinet body is diluted by the inert gas to a concentration that cannot burn, and the fire extinguishing efficiency and reliability are remarkably improved.

The application belongs to the field of power equipment fire extinguishing, and specifically relates to an automatic fire extinguishing energy storage cabinet, which comprises an air inlet mechanism, a carrying mechanism and a fire extinguishing mechanism. The air inlet mechanism and the carrying mechanism are used to seal the inside when the main line is disconnected, dilute the internal oxygen with inert gas, reduce the loss while reducing the fire, and achieve the technical effect of low-loss fire extinguishing. When the fire cannot be controlled, the air pressure in the air inlet mechanism and the carrying mechanism is discharged through the pressure relief valve, the temperature threshold of the heat-sensitive element is triggered by the gas passing through the pressure relief valve, the electric control valve is started, the water-based solution in the water-based bottle is discharged through the overflow pipe and the infusion channel, and then sprayed from the fire nozzle to extinguish the fire. When the loss cannot be reduced, efficient fire extinguishing is achieved, and the technical problems of the prior art that the existing equipment cannot extinguish the fire in time and cannot reduce the loss are solved.

The present invention relates to the field of flue gas nitrogen oxide emission, and in particular to a method and a combustion system for reducing nitrogen oxide emission. Introducing non-nitrogen inert gas as a combustion diluent to establish ignition; when the amount of circulation flue gas reaches a designed value, the introduction of the non-nitrogen inert gaseous diluent is stopped; and by means of circulation of a part of flue gas and a part of CO2 in the flue gas, the internal circulation of the whole process system is ensured. The present invention achieves the objectives of reducing the nitrogen oxide emission and saving the fuel, thereby saving the energy, protecting the environment, fundamentally solving the emission problem of NOx in the flue gas, and achieving carbon reduction.

In the first step reaction for producing 1,1,2-trifluoroethane (HFC-143) from 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) as part of the overall process for producing trans-A,2-difluoroethylene (HFO-1132E), several intermediates and / or byproducts are formed, some of which can be considered desirable and others of which can be considered undesirable. The overall reaction process and / or specific reaction conditions for producing 1,1,2-trifluoroethane (HFC-143) from 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) can be selectively adjusted, such as with catalyst conditioning and / or with inert gas dilution of the reactants, to effectively convert the desired intermediates to the desired product 1,1,2-trifluoroethane (HFC-143) and / or to minimize the formation of undesirable byproducts.

The utility model discloses a hydrogen-nitrogen mixed gas control device, relates to hydrogen-nitrogen mixed gas control device technical field, including mixing box, the left side and right side of mixing box inner surface middle part are both fixedly equipped with the separator plate, the surface upper side of separator plate is equipped with the first air hole, and the surface lower side of right side separator plate is equipped with the second air hole, the second air hole is equipped with the second air hole. A piston is slidably attached to the middle of the partition plate, and a through cavity is formed in the surface of the piston. Compared with an existing common hydrogen-nitrogen mixed gas control device, the hydrogen-nitrogen mixed gas control device has the advantages that hydrogen can be injected only when nitrogen is injected firstly, the situation that reducing gas is not diluted by inert gas and enters an equipment end can be avoided, danger is greatly prevented, and meanwhile, when the nitrogen supply amount is insufficient and the pressure borne by the piston is reduced, the nitrogen can be injected into the equipment end. And under the action of the telescopic spring, the piston is gradually pushed downwards, so that the air hole I and the air hole II are blocked, a hydrogen inlet path is cut off and blocked, automatic cut-off is realized, and effective protection measures are taken.

The invention provides a novel process route for preparing perfluorohexane (C6F14), and the preparation method comprises the following steps: diluting fluorine gas with inert gas to obtain first mixed gas, and mixing hexafluoropropylene dimer (C6F12) with perfluorinated liquid to obtain first mixed liquid; the first mixed gas and the first mixed solution are treated through a microchannel reactor and then transferred into a reaction kettle, a product in the reaction kettle is collected, the product is separated, and the crude perfluorohexane product is obtained. The problems that in the prior art, the C6F14 preparation process is complex, and the conversion rate is low are solved. On the other hand, the invention discloses a purification method for obtaining a high-purity C6F14 finished product. The conversion rate and the purity of the perfluorohexane obtained by the scheme of the invention are obviously improved.

This invention relates to the field of intelligent construction and safety protection technology for highway precast beam yards, and provides an intelligent production control system and method for highway precast beam yards. The system includes: an image data acquisition module, used to acquire historical cleaning records of target templates during the precast beam yard production process, and extract the initial target image of the target template after the last cleaning; and to acquire the operation data of the localized trapping hood, including the moving speed of the localized trapping hood along the target template, and the current initial grinding image captured by a first camera deployed in the imaging chamber. It can predict the proportion of combustible dust in advance based on the estimated volume of old oil film and residual slurry, and can proactively trigger inert gas dilution and explosion-proof operation modes before the dust enters the dust removal system, significantly improving the dust explosion risk prevention and control capabilities.