563results about How to "Reduce the risk of explosion" patented technology

The present invention relates to the regeneration of adsorbent matrices that are used for the purification of substances from aqueous liquid samples derived from biological material. The method is adapted to adsorbent matrices that are sensitive to hydrolysis either because of a sensitive base matrix or a sensitive ligand including also a sensitive spacer a n d is characterized in contacting at least one regeneration solution with the adsorbent matrix which comprises an organic solvent which is water-miscible and has a pH value ≦4, preferably ≦3 (acid solution) or ≧10 but <13 (alkaline solution).

A method and apparatus for ensuring against explosion of the gaseous atmosphere of a closed chamber, such as the QDCD room of an internal turret of an offshore production and offloading buoy wherein the closed chamber has production risers and conduit connectors that represent a potential source of flammable gas. The method comprises mixing and diluting the oxidant content of the air by introducing within the closed chamber a sufficient quantity of inert gas to render the mixture of the air and any flammable gas non-combustible regardless of the flammable gas content of the mixture. The method includes removal of the non-combustible mixture of air and any flammable gas from the closed chamber by purging thereof to the natural atmosphere, while introducing inert gas, thereby leaving a substantially inert atmosphere within the closed chamber. The turret system provides for control of the gaseous atmosphere within the closed chamber at all modes of turret operation, including the idle, on-line and ventilation modes and also provides for gas pressure control to accommodate normal operating conditions and conditions of gas leakage into the chamber.

The invention is applied in the industries of medicine, air compression, natural gas, synthetic ammonia, oil refining, coking and the like, and relates to a gas-liquid separation device. The device comprises a shell, an air inlet pipe and an exhaust pipe; a drum driven to rotate by a power device is arranged in the shell; the wall of the drum is provided with air holes; a partition plate is arranged in the drum to partition the drum into an air inlet end and an exhaust end which are respectively communicated with the air inlet pipe and the exhaust pipe; the air inlet pipe is communicated with the exhaust pipe through the air inlet end of the drum, the air holes in the wall of the drum, an air passage and the exhaust end of the drum; and the shell is provided with a drain pipe. Through the device, the separation efficiency of liquid particles with the diameters of over 0.1 micron reaches over 99.5 percent; and the device is large in treated gas quantity and suitable for wet gas with high liquid content, does not require circulation of a large quantity of washing absorption liquid, does not require a high-voltage electrostatic system, has good adaptability to the physical properties of the liquid, has certain capability of separating dry gas components with different densities, and is small in volume, light in weight, small in occupied space and low in manufacturing cost.

The present invention is in the field of bioelectricity. The present invention provides energy generating systems, methods, and devices that are capable of converting chemical energy stored in sugars into useful electricity.

The invention discloses a lithium ion battery. The lithium ion battery comprises a battery casing, a battery top cap mounted on the battery casing and a pressure relief valve arranged on the battery casing and / or the battery top cap and further comprises a safeguard device, wherein the safeguard device is arranged on the battery casing and / or the battery top cap and fixed corresponding to the pressure relief valve; the safeguard device comprises a baffle plate corresponding to the pressure relief valve, a side wall and an air channel structure; the side wall extends towards the battery casing or the battery top cap from the baffle plate and is connected with the battery casing or the battery top cap; the air channel structure is formed on the side wall. Through the forming of the air channel structure on the side wall, the baffle plate and the air channel structure form relatively separating design, solid spark particles can be effectively blocked by the baffle plate, air can be efficiently discharged through the side air channel structure, and the safety performance of the lithium ion battery is improved.

The invention discloses a multi-station circular-disc type novel numerical control automobile hub polishing machine. The multi-station circular-disc type novel numerical control automobile hub polishing machine comprises a revolution circular disc assembly in the middle. Autoroatation hub clamp assemblies of multiple stations are evenly arranged on the revolution circular disc assembly in the circumferential direction at equal angles. Asynchronous polishing wheel assemblies of the stations and a loading and unloading station of one station are arranged around the autoroatation circular disc assemblies and correspond to the autoroatation hub clamp assemblies of all the stations. The polishing wheel assembly of each station comprises a three-direction displacement component and a polishing wheel machine head component deflecting at the preset angle along the horizontal axis and arranged on the three-direction displacement component. The polishing machine can achieve four-axis linkage and automatic compensation for the polishing wheel wear radius, and therefore production efficiency is improved greatly; meanwhile, the application range of complex-spoke hub polishing is enlarged, and the stable and consistent hub polishing quality is guaranteed; and the requirement on the experience of operators is lowered, and thus production efficiency and economic benefits are improved.

The invention discloses an aluminum-particle-based method for preparing a coating by cold spray deposition in the technical field of metal material coatings. Helium is used as a working gas and a carrier gas, and high-purity aluminum powder is sprayed onto a matrix subjected to iron silicate particle blasting treatment by using a spray gun to realize coating preparation. Various defects in the prior art, particularly in the thermal spraying aluminum coating preparation process are overcome, risks of small-size particles in storage and cold spray processes are overcome, and the cost of aluminum powder particle deposition is effectively reduced.

The invention relates to a method for producing monocyclic ketones C4-C5. The inventive method is based on the reaction of a liquid-phase oxidation of monocyclic alkenes C4-C5 into corresponding cyclic ketones by nitrogen oxide or the mixture thereof with an inert gas. The process is carried out at a temperature ranging from 20 to 300° C. and a pressure of nitrogen oxide ranging from 0.01 to 100 atm. The inventive process ensures the high selectivity with respect to target products, the explosion safety at work and is promising for industrial use.

The invention discloses a self-heating laminated micro-channel reforming hydrogen production reactor, which comprises an upper cover board, an endothermic reaction substrate, an exothermic reaction substrate and a lower cover board, wherein the upper cover board is formed with a vapour reforming reactant inlet, a vapour reforming product outlet, an inlet of hydrocarbon in partial oxidation reforming reaction, and an inlet of oxygen in partial oxidation reforming reaction; the endothermic reaction substrate comprises a vaporization cavity, a vapour reforming reaction cavity, a vapour guide channel and hot circulation channels located on two sides of the endothermic reaction substrate; the exothermic reaction substrate comprises a catalytic combustion cavity, and a partial oxidation reforming reaction cavity, wherein the catalytic combustion cavity is connected with the partial oxidation reforming reaction cavity one another through a channel formed on the middle part of the exothermic reaction substrate. The reactor provided by the invention is characterized by that the whole micro-reactor can be started up and operated with self-heat without an external heat source, and the reactor can greatly improve the efficiency of methanol-vapour reforming hydrogen production reaction; the reactor provided by the invention further realizes recycling waste heat obtained by burning the reaction products and reduces loss of heat energy.

The invention discloses a multi-station disc type novel numerical control polishing machine for pot type workpieces. The multi-station disc type novel numerical control polishing machine comprises a rotating disc assembly arranged in the middle. Multi-station pneumatic sucker components are evenly arranged in the circumference direction of the upper surface of the rotating disc assembly with equal angles. A loading and unloading station is arranged in the position, corresponding to one pneumatic sucker component, of the periphery of the rotating disc assembly. Single-polishing wheel assemblies and / or double-polishing wheel assemblies are arranged in the positions, corresponding to the rest of the pneumatic sucker components, of the periphery of the rotating disc assembly. The single-polishing wheel assemblies comprise three-direction displacement components and single-polishing wheel machine head components arranged on the three-direction displacement components. The double-polishing wheel assemblies comprise two-direction displacement components and double-polishing wheel machine head components arranged on the two-direction moving components. The multi-station disc type novel numerical control polishing machine for the pot type workpieces is provided with the single-polishing wheel assemblies and the double-polishing wheel assemblies so that the multi-station disc type novel numerical control polishing machine can meet the requirement for polishing of side walls and bottom faces of pot type workpieces with different shapes and different sizes, the production efficiency is greatly improved, meanwhile, it is ensured that the polishing quality of the pot type workpieces is stable and consistent, occupied area is saved, energy consumption is reduced, and the production efficiency and the economic benefits are greatly improved.

The invention provides a magnetic separation enhanced type electromagnetic thermal desorption method and device for remediating contaminated sites. The method is characterized in that ferromagnetic materials, such as reducing iron powder, are doped into contaminated soil in an ex-situ mixing and stirring manner, the contaminated soil spirally stirred is heated by using electromagnetism, and a thermal desorption heat transfer gasifying effect is improved through the in-situ electromagnetic eddy heating of the ferromagnetic materials; the reaction activity and oxidation reduction capability of the ferromagnetic materials are improved when the ferromagnetic materials produce heat; after thermal desorption is finished, the ferromagnetic materials of which the surfaces react and adsorb pollutants can be separated from the contaminated soil through magnetic separation, recycled and reutilized; and the continuous remediation of contaminated soil is realized. The device also can be used for the in-situ remediation of contaminated soil. After the ferromagnetic materials are added to the soil in situ through a ploughing stirring device, the soil is heated in situ by utilizing an electromagnetic induction coil to carry out excitation eddy heating in the contaminated soil, pollutants are desorbed, and at the same time, the reaction activity of the magnetic materials(for example, reducing iron powder) can be improved; and after reaction is finished, the iron powder can be separated from the contaminated soil through a magnetic separation technology. The device also can be placed in soil to realize in-situ oxidation reduction degradation. The method and device are suitable for the in-situ thermal desorption remediation of circumjacent large area of low-concentration contaminated soil.

This invention involves the mixtures of oxides of nitrogen and oxygen (O2) as the oxidizing component in propulsion, gas generation and power generation applications. Advantages of the oxidizers of the inventions may be self pressurization, high density, density impulse, higher operational temperatures, and high Isp performance. The invention provides devices, methods and compositions related to the disclosed oxidizers.

The invention discloses a combined production method for substituted benzaldehyde, substituted benzyl alcohol and substituted benzoic acid. The method comprises the following steps: (1) oxidation: a step of continuously introducing substituted toluene, a catalyst and oxygen-contained gas into an oxidation reactor and carrying out reaction so as to obtain oxidation reaction liquid; (2) hydrolyzation: a step of allowing the oxidation reaction liquid to continuously enter a hydrolysis reactor, and continuously adding water into the hydrolysis reactor and carrying out reaction so as to obtain a hydrolysis reaction mixture; (3) liquid-liquid layering: a step of layering the hydrolysis reaction mixture so as to obtain an oil phase and an aqueous phase; and (4) separation of products: a step of subjecting the oil phase to distillation so as to respectively obtain incompletely-reacted substituted toluene, substituted benzyl alcohol and substituted benzaldehyde, and subjecting the aqueous phase to cooling, crystallizing and filtering so as to obtain filtrate and substituted benzoic acid. The combined production method provided by the invention has the advantages of high raw material conversion rate, few by-products, good selectivity of target products, greenness and environmental protection.

The invention relates to a composite material with high obstruction and high performance and a preparation method thereof. The composite material with high obstruction and high performance is a laminated body sequentially compounded by a polyfluoroethylene thin film layer, a polyurethane adhesive layer, an AL / PET film layer, a polyurethane adhesive layer, a Kevlar fabric layer and a polyurethane coating. The composite material can ensure lower gas permeability and good mechanical properties and fatigue resistivity under the condition of lighter quality and can be really adapted to the application requirement on the material with high obstruction in the aerospace field. The preparation method is a dry method solvent-free composite technology, the solid content of adhesive used for the method is 100 percent, and no solvent is contained. The method has the great characteristics of environment protection, high product hygiene index and product quality guarantee.

Disclosed is a housings for lithium based batteries, suitable for large format batteries, and a method of manufacturing such housings using direct electroplating resin technology. The housing, while maintaining stack pressure and acting as a moisture and electrolyte barrier, is lighter in weight, smaller in volume, and is safer than conventional metal housings. The manufacturing process is well suited for automation and is less expensive than current manufacturing processes.

The invention provides a lithium ion secondary battery, a composite positive electrode active material thereof and a preparation method. The composite positive electrode active material is prepared by compositing a lithium cobalt series oxide and lithium manganese phosphate (LMP). The composite positive electrode active material has a filling structure formed by filling and compositing primary particles of LMP in gaps and pits in the surfaces of secondary particles of the lithium cobalt series oxide, wherein the chemical general formula of the lithium cobalt series oxide is LiAxCo<1-x>O2; x is not less than 0 and is less than 1; A is at least one of Ni, Mn, Al, Mg, Ca, Cr, Zr, Mo, Ag and Nb; the chemical general formula of LMP is LiByMn<1-y>PO4; x is not less than 0 and is less than 1; B is at least one of Ni, Co, Fe, Al, Ca, Zn, Mg, Mo, Pb and Zr. The lithium ion secondary battery comprises the composite positive electrode active material. The lithium ion secondary battery has good capacity density, rate performance, cycle performance, storage performance and safety performance.

The invention discloses an industrial plant heating and dustless and volatile organic chemicals (VOCs) near zero emission process, which substantially comprises steps: (1) VOCs in industrial plants is collected by utilizing a gas collecting system, and waste gas is collected; (2) the waste gas which is collected in the step (1) is conveyed to a waste gas treatment device, and the VOCs is treated; and (3) gas which is treated in the step (2) is conveyed to plants through a gas send-back system, and is recycled. The industrial plant heating and dustless and volatile organic chemicals (VOCs) near zero emission process enables plants not to have dust and heating, and enables VOCs to be discharged near zero or at zero.

The invention relates to the technical field of organic silicon coatings, and particularly relates to an RTV anti-pollution flashover coating suitable for automatic dip-coating of an insulator and a preparation method of the RTV anti-pollution flashover coating. The RTV anti-pollution flashover coating comprises the following components in parts by weight: 40-60 parts of an active polydimethylsiloxane mixture, 5-10 parts of a hydrophobic transferring aid, 8-30 parts of reinforcing gas-phase-method white carbon black, 15-32 parts of fire retarding filler, 3-8 parts of a crosslinking agent, 0.5-5 parts of a tackifier, 0.01-1.0 part of a sulfurization accelerator, 0.1-5 parts of a pigment and 15-35 parts of solvent oil. The preparation method of the RTV anti-pollution flashover coating comprises the following steps: (1) kneading; (2) grinding; (3) drying; (4) cooling; (5) mixing, and finally packaging to obtain a finished product. The RTV anti-pollution flashover coating disclosed by the invention has the service characteristics of a common RTV anti-pollution flashover coating and also has higher viscosity, higher solid content, suitable surface drying speed and better foam self-discharging speed, so that the RTV anti-pollution flashover coating can satisfy the coating requirements of an automatic dip-coating technique of ceramics and glass insulators.

The present invention relates to the regeneration of adsorbent matrices that are used for the purification of substances from aqueous liquid samples derived from biological material. The method is adapted to adsorbent matrices that are sensitive to hydrolysis either because of a sensitive base matrix or a sensitive ligand including also a sensitive spacer and is characterized in contacting at least one regeneration solution with the adsorbent matrix which comprises an organic solvent which is water-miscible and has a pH value ≦4, preferably ≦3 (acid solution) or ≧10 but <13 (alkaline solution).

A lithium secondary battery that has a battery cell structure, with improved electrochemical stability between an electrode and an electrolyte. In addition, the lithium secondary battery improves ion conductivity while applying a solid electrolyte. More specifically, a lithium secondary battery comprising a separator formed by an electrolyte between the cathode and the anode, wherein a composite coated layer of lithium-lanthanum-titanate (LixLayTiO3) and lithium-lanthanum-zirconium-oxide (Li7La3Zr2O12) is formed on the interface of the anode and the electrolyte.

Provided is a chlorine dioxide-generating product comprising an inorganic porous carrier carrying a chlorite and an alkali agent. In the product, the alkali agent is carried in an amount of more than 0.7 molar equivalent and not more than 2 molar equivalents relative to the amount of the chlorite carried, and the product has a water content of 10% by weight or less. The chlorine dioxide-generating product can stably generate chlorine dioxide gas in an amount that sufficiently achieves deodorization, sterilization, virus removal, mold prevention, antisepsis, or the like of spatial environments, foods, or others but exerts no harmful effect on humans, over a long period of time.

This invention relates to an aluminum pouch film for a secondary battery and a manufacturing method thereof, the aluminum pouch film including: an aluminum layer; an outer resin layer formed on the first surface of the aluminum layer; a first adhesive layer for adhering the aluminum layer to the outer resin layer; an inner resin layer formed on the second surface of the aluminum layer; and a second adhesive layer for adhering the aluminum layer to the inner resin layer.

The invention discloses a bag clamping device. The bag clamping device comprises a bracket, a bag clamping cylinder, bag opening mechanisms and a bag warehouse are arranged on the bracket, a rail is arranged on the bracket, the bag clamping cylinder and the bag warehouse are sequentially distributed along the rail, a bag clamping mechanism is arranged on the bag clamping cylinder, and the bag opening mechanisms are distributed on the two sides of the bag clamping cylinder, can move along the rail and comprise suction cups; the bag opening mechanisms move to the side of the bag warehouse, packaging bags in the bag warehouse are sucked through the suction cups, the bag opening mechanisms move to the bag clamping cylinder, the packaging bags are adsorbed and pulled from two sides through the suction cups, the packaging bags are opened and arranged on the bag clamping cylinder in a sleeving manner, and the bag clamping mechanism clamps the packaging bags from the two sides; and integral design is achieved, automatic bag taking, bag opening, bag clamping and filling are continuously completed, the structure is simple, the occupied area is small, the cost is low, the device is particularly suitable for transformation and upgrading of existing packaging equipment, the packaging production efficiency is improved, labor intensity is reduced, the number of operators on site is reduced, and the safe level of the industrial explosive production line is improved.

The invention discloses an EPE pearl wool material and a preparation method thereof. The EPE pearl wool material contains the following raw material components in parts by weight: 90-100 parts of LDPEresin particle materials, 0.5-3 parts of a nucleating agent, 1-3 parts of monoglyceride, 0.1-5 parts of a stable master batch and 10-20 parts of a mixed foaming agent, wherein the mixed foaming agentcontains a mixture of CO2 and butane, the weight of CO2 is less than or equal to 75% of the total weight of the mixed foaming agent, and the use amount of CO2 is not zero. By selecting proper types and proportions of the mixed foaming agent as well as the components, the foaming agent in the foam holes can be exchanged with air as quickly as possible in the premise that the foam holes of the EPEpearl wool material do not collapse and the product does not shrink, and the storage curing process of the EPE pearl wool material is shortened; the EPE pearl wool material has condense and uniform foam holes and relatively good properties such as buffer shockproof property; and the curing period required for stabilizing the foam holes is shortened, so that the supply period of the product is shortened.

The invention relates to the technical field of fuel cell cars, and aims at providing a safe and explosion-proof hydrogen fuel installation unit electric-control initiative hydrogen discharging system. According to a technical scheme, the FCEV (Fuel Cell Electric Vehicle) hydrogen fuel installation unit electric-control initiative hydrogen discharging system comprises an electric control unit ECU,an explosion-proof hydrogen storage apparatus, a fuel cell and a hydrogen discharging apparatus, the hydrogen discharging apparatus comprises a buffer tank, a nitrogen tank, a water trough and an exhausting pipe, a branch pipe which is arranged on a hydrogen supply pipeline between the explosion-proof hydrogen storage apparatus and the fuel cell is connected with one end of the buffer tank, the branch pipe is provided with a second electromagnetic valve, and the other end of the buffer tank is separately connected with the water trough and the hydrogen supply pipeline by virtue of the hydrogen discharging pipeline and a reflux pipeline. One end of the nitrogen tank is connected to the hydrogen discharging pipeline by virtue of a pipeline, a pipeline adopted by the hydrogen supply pipelineand the hydrogen discharging pipeline is a pipeline with an expansion structure and comprises a straight pipe section and an expansion section formed by expanding the pipeline, and the expansion section and the straight pipe section are interconnected to form a whole body. The safe and explosion-proof hydrogen fuel installation unit electric-control initiative hydrogen discharging system is convenient in operation, safe and explosion-proof.

A safety system for reducing the explosion risk of a fuel tank comprises a protective gas generating device and a delivery device for delivering the protective gas generated by the protective gas generating device into the fuel tank. The protective gas generating device (24) comprises a fuel cell system (26) having a fuel cell (28) and is configured so as to provide the delivery device (14) with a protective gas generated by the fuel cell (28) during operation of the fuel cell system (26).

In order to overcome the problems of fire risks and explosion risks of the exiting power batteries, the invention provides a battery security protection device. The battery security protection device comprises a battery shell, a battery module and a fire extinguishing device, the battery module and the fire extinguishing device are packaged in the inner cavity of the battery shell, the fire extinguishing device comprises a material storage part and a temperature control valve, a fire extinguishing agent is held in the material storage part, the temperature control valve is connected with the material storage part and is used for connecting the inner cavity of the material storage part with the inner cavity of the battery shell at a certain temperature. The battery security protection device provided by the invention can extinguish the fire in the case of fire of the battery module so as to reduce the explosion risk.

The invention discloses a preparation formula and a preparation method of anti-abrasion waterproof percussion-composition-free nail-shooting pill tablets. The anti-abrasion waterproof percussion-composition-free nail-shooting pill tablets comprise high-explosive nitro-cotton, potassium permanganate, a granulation material, an anti-abrasion waterproof material, coloring agents, solvent and water. The solvent and the water are solvent and water which are left in the preparation process. The characteristic that potassium permanganate is decomposed and is changed from bright red to dark brown when heated is used for visual control in the production process. The coloring agents are used in the formula, tablets with different explosive forces are distinguished according to different colors of the coloring agents, and safety during construction or after construction is improved. The water content in the tablets is controlled in the production process, safety in the production process is ensured, and tabletting forming of the tablets is convenient. Meanwhile, in the vacuum freeze-drying procedure, porosity of the tablets is guaranteed, oxygen supply during explosions can be improved due to proper porosity, the explosive force is improved, and the dud rate is reduced.