44 results about "Flash point" patented technology

The invention discloses an ignition-free closed-cup flash point measuring system for petroleum products. The ignition-free closed-cup flash point measuring system comprises a sample pretreatment unit, a flash separation unit, a constant-temperature control unit, a flash point detection unit and a data processing unit which are communicated in sequence. The sample pretreatment unit is used for removing solid impurities and moisture in a petroleum sample; the flash separation unit is used for converting the pretreated sample into oil vapor and liquid components; the constant-temperature control unit maintains the temperature stability of the system; the flash point detection unit detects the flammable flash state of the oil vapor in an optical mode; the data processing unit records and analyzes the detection data to output a flash point value. The invention further provides auxiliary modules such as a circulating purification unit and a safety monitoring unit, efficient, accurate and safe measurement of flash points of various petroleum products such as gasoline, diesel oil and lubricating oil is achieved through pressure grading flash evaporation and precise temperature control, the detection period is short, the automation degree is high, and the device is suitable for rapid flash point analysis of laboratories and industrial sites.

The application discloses an oil product online detection device and relates to the technical field of oil product detection.The device comprises a detection mounting piece, an elastic supporting piece is installed on the detection mounting piece, the detection mounting piece is used for collecting oil products to be detected, a flash point control piece is installed on the elastic supporting piece, the flash point control piece is used for preventing evaporation and diffusion, a limiting control piece is inserted into the detection mounting piece, the limiting control piece is used for limiting the flash point control piece, an overflow part is installed on the detection mounting piece, and the overflow part is used for guiding oil liquid; the flash point control piece can be used to automatically control the suction of oil products and the heating and evaporation of the steam, and only when the ignition rod passes through the oil pot, the oil pot can normally generate steam to perform flash point testing, so that the problem that the current oil product online detection device is not convenient for automatically controlling the prevention of steam volatilization and diffusion when non-testing is solved.

A method and system for controlling a tank containing a low flashpoint fuel, such as methanol, for powering a vessel is disclosed. The method comprises measuring the temperature of the tank's content and determining whether this temperature exceeds a first threshold temperature, which is below the boiling point of the content. The method further comprises ingressing water into the tank if the measured temperature exceeds the first threshold temperature. The system includes a tank, sensors for measuring temperature, conduits for ingressing water into the tank, valves for controlling the ingress of water, and a computer readable medium for performing the method. Unlocking insights from Geo-Data, the present invention further relates to improvements in sustainability and environmental developments: together we create a safe and liveable world.

An embodiment provides: a foaming agent composition comprising a foaming agent having a flash point of less than 50°C and an ignition inhibitor, wherein the foaming agent composition has a flash point of 100°C or higher or the flash point is not measured; and a polyurethane resin composition comprising an isocyanate component, an isocyanate-reactive component having reactivity with the isocyanate component, and the foaming agent composition.

The utility model provides a flash point determinator with an automatic dry powder extinguishing device, which comprises a flash point determinator, the flash point determinator comprises a determination table, the rear side of the determination table is provided with a rear side plate, the left side of the determination table is provided with a left side plate, the right side of the determination table is provided with a right side plate, and the determination table is provided with an experiment cup. A fire extinguishing device is arranged above the position, opposite to the experiment cup, of the left side plate, the fire extinguishing device comprises a fire source sensor and a shell, a circuit board is arranged in the shell, and a plurality of probes are connected to the side, opposite to the experiment cup, of the circuit board in a circumferential array mode; the signal output end of the fire source sensor is electrically connected with the signal input end of a programmable logic controller, and the signal output end of the programmable logic controller is electrically connected with a starting valve of a dry powder extinguisher. According to the utility model, the fire extinguishing device can be utilized to quickly and effectively extinguish fire when the experiment cup is on fire or boils over and flows during flash point analysis, the automation degree is high, and the harm caused by fire disasters is reduced as much as possible.

This utility model discloses a liquid fuel oil gasification burner head, including an outer shell, an inner liner, a multi-layered sleeve-type gasification core, and a high-pressure ignition needle. The inner liner is nested inside the outer shell to form a U-shaped annular sealed space, and the inner liner wall is provided with upwardly inclined air injection holes. The core is vertically arranged at the center of the inner liner and consists of an inner thin tube, a middle coarse tube, and an outer conical sleeve, forming a two-stage oil passage: the inner thin tube and the middle coarse tube form a first oil passage, and the outer conical sleeve and the middle coarse tube form a second oil passage. An oil outlet is opened at the bottom of the outer conical sleeve, and the tube wall is provided with upwardly inclined air holes. The tip of the high-pressure ignition needle is directly opposite the oil outlet. The technical solution of this utility model can extend the heating path of fuel oil through the multi-layered sleeve, realize the complete gasification of high / low flash point fuel oil (such as ethylene glycol, light white oil, alcohol-based fuels, etc.), and solve the problems of traditional burners not being able to achieve small-flame combustion, incomplete combustion, and black smoke after ignition and shutdown.

The application relates to the technical field of low-flash-point fuel double-wall pipe devices, and discloses a low-flash-point fuel double-wall pipe device and an assembling method thereof, which form a set of high-efficiency welding, folding and mounting processes for the inner pipe and the outer pipe of the double-wall pipe, ensure that the welding requirements are fully met, the mechanical performance of the welding seam is improved, the forming quality of the welding seam is improved, and the one-time inspection qualified rate is high.

Stirring device for stirring a sample in a container which is closable by a lid, for a flash point determination test and / or combustion point determination test, wherein the stirring device comprises a stirring unit which may extend at least partially through the lid for stirring the sample which is arranged in the container, a drive unit which is to be arranged at least partially outside of the lid, for driving, in particular rotationally driving, the stirring unit, a coupling unit for coupling the stirring unit with the drive unit, and an actuation unit which, in particular for adjusting the coupling unit, is actuatable such that selectively in a first actuation position, when pulling up the drive unit, the lid is detachable from the container commonly with the stirring device, or in a second actuation position, when pulling up the drive unit, the drive unit is detachable from the container, and the stirring unit and the lid remain at the container.

The invention discloses a pipeline lightning stroke hazard assessment method, device and equipment, a storage medium and a product. Determining the lightning stroke probability of the target pipe section according to the position of each target ground flash point, the ground lightning density and the initial position and the final position of the target pipe section; under the condition that the lightning stroke probability is greater than a lightning stroke probability threshold value, determining a soil ionization radius of a current ground flash point for each target ground flash point; under the condition that the vertical distance from the current flash point to the target pipe section is smaller than or equal to the soil ionization radius, the breakdown probability of the coating of the target pipe section is determined; under the condition that the breakdown probability is larger than a breakdown probability threshold value, if target heat generated by the maximum lightning current corresponding to the current ground flash point is larger than or equal to a preset heat threshold value, the pipe body ablation depth of the target pipe section is determined; according to the ablation depth of the pipe body, the lightning stroke damage degree of the target pipe section is evaluated. And the accuracy and practicability of pipeline lightning stroke hazard assessment are effectively improved.

The invention belongs to the technical field of heat-conducting oil, and particularly provides high-temperature-resistant heat-conducting oil and a preparation method thereof. The high-temperature-resistant heat-conducting oil comprises composite base oil, an antioxidant, a dispersing agent and a clearing agent, the composite base oil is oligosiloxane in which nano boron nitride is stably dispersed. The high-temperature-resistant heat-conducting oil prepared by the invention has the characteristics of high heat conductivity, high flash point, high use temperature, low residual carbon, low corrosion and long-term stability.

The invention discloses a method for evaluating the aging performance of flame-retardant insulating oil, and relates to the technical field of performance evaluation of insulating materials of power equipment, and the method comprises the following steps: S1, sample preparation; s2, a sequential coupling aging test: sequentially performing an accelerated thermal aging test and a disruptive discharge aging test on the flame-retardant insulating oil sample; s3, performance parameter testing and characteristic rule identification: testing a flash point, a breakdown voltage, a dielectric loss factor tan delta and an acid value of the sample at different stages of the sequential coupling aging test; analyzing an evolution rule of a flash point along with thermal aging time, change characteristics of a breakdown voltage in thermal aging and breakdown discharge aging processes, and change trends of a dielectric loss factor and an acid value; and S4, comprehensive performance and service life evaluation. According to the invention, through a sequential coupling aging test, a complex working condition of a thermal-electric stress synergistic effect in the transformer is comprehensively simulated, and the limitation of a traditional single aging mode is overcome.

The utility model relates to a rapid cooling device of a closed-cup flash point detection instrument, which comprises a shell (2), more than two cooling tanks (1) are arranged at the upper part of the shell (2), a through ice injection port (3) is arranged beside the cooling tanks (1), a water outlet (4) is arranged at the bottom of the shell (2), the cooling tanks (1) are not communicated, cooling cups are arranged in the cooling tanks (1), and the water outlet (4) is arranged at the bottom of the shell (2). High-temperature oil needing to be cooled after an experiment is finished is contained in the cooling cup, an ice containing cavity (5) for containing ice is formed in the shell (2), and the cooling groove (1) is not communicated with the ice containing cavity (5). By means of the design that the cooling grooves are isolated from the ice containing cavity, the cooling cups containing the high-temperature oil are arranged in the cooling grooves, ice blocks are added into the ice containing cavity from the ice injection openings, the high-temperature oil can be rapidly cooled, the cooling grooves are not communicated with one another, mutual influence is avoided, and molten ice water can be conveniently drained through the water drainage openings.

A process for the explosion-proof storage of nitrous oxide in the liquid phase in a container comprising filling the container with nitrous oxide and an inert component selected from nitrogen, oxygen, carbon dioxide, water, argon, helium, krypton, xenon and mixtures thereof, and keeping it at a temperature of 190 to 273 K, wherein (i) the container has in all three spatial directions an inner distance between two opposite interior walls of ≥10 cm, (ii) the concentration of the inert components comprises 2 to 20 wt.-% in total, based on the nitrous oxide in the liquid phase, and (iii) compounds selected from—gases having a flammable range with air at 293.15 K and 101.3 kPa abs,—liquids having a flash point of ≤366.15 K at 101.3 kPa abs, and—mixtures thereof are kept at 0 to 2 wt.-% in total, based on the nitrous oxide in the liquid phase.

The invention belongs to the technical field of mixed explosive preparation, relates to a preparation method of special coal-based synthetic oil for mixed explosives, and belongs to the technical field of coal-based liquid fuel and explosive auxiliary materials. According to the method, the coal-based synthetic oil with proper viscosity, high flash point, good low-temperature fluidity, excellent oxidation stability and good compatibility with ammonium nitrate is prepared through specific coal liquefaction, hydrofining, isomerization and component blending processes. The product can safely and efficiently replace traditional diesel oil to be applied to on-site mixed loading explosives, has the characteristics of controllable performance, controllable cost and high adaptability, and can effectively solve the problems of property fluctuation, potential safety hazards, poor environmental adaptability and the like when the traditional diesel oil is used as a fuel phase of the mixed loading explosives.

The application discloses a high-flash-point diluent dispersing device and a dispersing method thereof, which comprises a liquid inlet, a fixing ring, a supporting frame, a hose, a hard pipe, a discharge pipe and a spherical pipe. The high-flash-point diluent is uniformly mixed and dispersed through multiple modes in a coordinated and synchronous manner, the dispersing effect is improved, the diluent is transported in an uninterrupted flow mode, and the dispersing operation is performed in the process, so that the overall efficiency is improved. The dispersing modes include spreading flow, spraying, pushing and pulling and stirring, and each mode is realized through a diluent flow matching device structure, without the need of adding various equipment.

The invention provides a real-time closed-cup flash point prediction method based on a trace distillation range measuring device, and relates to the technical field of distillation ranges and flash point tests.The method comprises the following steps that a preorder distillation range temperature set is obtained in real time, and the preorder distillation range temperature set comprises initial steam temperatures corresponding to a plurality of preset recovery volume percentage nodes; the steam pressure and the liquid temperature are obtained in real time to obtain the steam pressure change rate and the liquid temperature change gradient, and then the heat capacity disturbance factor of the device is calculated; correcting each initial steam temperature in the preorder distillation range temperature group in real time by using a heat capacity disturbance factor to obtain a corresponding first corrected steam temperature; and calculating and predicting the closed-cup flash point through linear weighting calculation of each first corrected steam temperature based on a weight distribution relation pre-established by the test steam temperature of the preset recovery volume percentage node and the linear correlation characteristic of the closed-cup flash point. According to the method, the closed-cup flash point is predicted while the distillation range is measured, and time and samples are remarkably saved.

The invention discloses a low-flash-point PMMA liquid resin safe glue mixing method and equipment based on inert gas protection, and relates to the technical field of low-flash-point resin glue mixing. The proportion of the inert gas in the air is increased, so that the flash point temperature of the low-flash-point substance can be improved, and the safety in the glue mixing and filling process is ensured. Aiming at the combustion risk existing in the low-flash-point PMMA liquid resin mixing and pouring process, the glue mixing equipment can effectively improve the flash point temperature of resin by increasing the content of inert gas in air in the glue mixing cavity and reducing the oxygen concentration; the equipment is provided with a real-time oxygen concentration detector to monitor the oxygen content in the glue mixing cavity, inert gas is supplemented in real time, and the specific oxygen concentration is maintained. The glue mixing equipment can control the combustion risk in the glue mixing and pouring process of the low-flash-point PMMA liquid resin from the source, has the advantages of low cost, easiness in operation and the like, and is suitable for glue mixing and pouring operation in the field of large-scale composite materials such as wind power blades, ships, airplanes and the like.

The invention relates to the field of electrochemical energy storage devices, and discloses an electrolyte of a flame-retardant high-power electric double-layer capacitor suitable for an energy storage scene and an electric double-layer capacitor containing the electrolyte, and the electrolyte comprises a liquid-phase flame retardant, a gas-phase flame retardant, a diluent and an optional additive besides a solvent and an electrolyte salt which form the electrolyte; wherein the liquid-phase flame retardant is a macromolecular fluorinated siloxane compound with a silicon-oxygen six-membered ring or eight-membered ring as a skeleton; the gas phase flame retardant is a halogenated phosphazene alkane compound; the diluent is a fluorinated ether diluent; and the additive is a silazane additive. According to the electrolyte, through collaborative design of a gas-liquid two-phase flame-retardant system, the potential safety hazards that an existing acetonitrile-based electrolyte is low in flash point and prone to jetting combustion due to thermal runaway are greatly solved, high safety, long service life and high energy density are guaranteed, and meanwhile the economical efficiency of large-scale mass production and process feasibility are achieved; the method is especially suitable for large-scale energy storage scenes with strict safety requirements.

This invention provides a high-calorific-value, high-flash-point bio-liquid fuel and its preparation method, comprising the following raw materials: bio-based butanol, ethylene glycol, dimethyl carbonate, butanone, cyclohexylamine carbonate, and methyl acetate, in the following mass percentage proportions: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, butanone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%. The high-calorific-value, high-flash-point bio-liquid fuel and its preparation method provided by this invention have the characteristics of high calorific value, high flash point, high freezing point, stable flame combustion, clean and smokeless operation, and high safety in storage tank transportation and use.

The invention discloses a novel water-based integrated fuel, and relates to the technical field of liquid fuels. The water-based fuel reaches an oil-in-water state by adding a water-oil solvation agent and high-shear emulsification dispersion, water and oil are mixed into a whole, and an additive for increasing the heat value is added, so that the water-based fuel reaches a relatively high heat value, thereby being capable of meeting the requirements of kitchens and boilers, and being more environment-friendly than environment-friendly oil and liquefied gas. Diesel oil and other fuels are safer and cleaner, and cost is saved. The closed-cup flash point of the product is more than 100, black smoke and residues are avoided after combustion, and the calorific value can be 7 thousand to 11 thousand calories. The product has a high flash point and is difficult to ignite by open fire, so that the product can be used only by matching with a special gas appliance. The method is also designed, produced and provided by the company. In the production process of the product, the feeding sequence of various substances must be strictly executed, the emulsifying and dispersing time must be timed and quantified, and the product can be produced until the product is transparent and not layered.

The invention provides a preparation method of low-flash-point cover plate AG glass and the AG glass. On the basis of existing equipment, a two-step chemical etching process is adopted, in the first step, the glass surface is frosted and etched to form a certain primary pit structure and lay a basic particle size, in the second step, the rough surface is subjected to secondary frosting and etching, the rough surface is refined, and a finer pit structure is formed; and the particle size is homogenized, the flash point is obviously reduced, and an AG product with low flash point, high definition and high roughness is produced.

The application provides a fuel efficiency improver and a preparation method thereof, and relates to the field of fuel additives, and comprises the following raw materials in proportion by weight: isopropyl alcohol 7000-7600 parts, butyl ether 2100-2500 parts, isooctanol 180-580 parts, ferrocene 2-10 parts, glyceride 2-6 parts, sodium sulfate 1-3 parts, cationic active agent 2-6 parts and anionic active agent 2-6 parts. The fuel efficiency improver not only has the effects of cleaning carbon deposition and reducing exhaust pollution, but also can change the tension of fuel, control the flash point of fuel, make fuel burn fully, improve the power of fuel and greatly improve the oil saving rate.

This invention belongs to the field of fuel stove technology and provides a safe, environmentally friendly, and energy-saving stove with a powder-sintered core for high flash point alcohol oil. The stove includes a table, a cooking utensil support, a core, and an oil filling sight glass. By eliminating asbestos and metal mesh, the burner head uses nickel-based alloy powder sintered at high temperatures, which is heat-resistant and wear-free, eliminating the need for frequent replacements. Combustion produces no odor, volatiles, or dust. The ceramic fiber oil-absorbing cotton does not accumulate moisture, making re-ignition convenient. Flame adjustment does not require adding or removing the cotton core; precise flame control is achieved by adjusting the air intake ring with an adjustment rod. The burner head's micron-level pores and air chamber work together to achieve a uniform supply of alcohol oil in a small amount, preventing excessive absorption, ensuring complete combustion, saving oil, and eliminating carbon buildup. Furthermore, in the event of accidental flameout, no high-temperature metal mesh remains, and the alcohol oil does not evaporate, producing any odor. This invention balances environmental protection and user experience, and is suitable for the combustion requirements of high flash point alcohol oil.

The application discloses a multifunctional modified mutual solvent for alcohol ether fuel and a preparation method thereof, and belongs to the technical field of fuel additives. The application aims at solving the problems of poor mutual solubility, strong corrosion to metal parts, difficult low-temperature starting and poor storage stability of the existing alcohol ether fuel mutual solvent. The modified mutual solvent is composed of the following raw materials in parts by weight: mutual solubility main agent 45-65 parts, corrosion-resistant composite agent 15-25 parts, low-temperature starting composite agent 8-18 parts and synergistic stabilizer 5-12 parts. The product of the application is mutually soluble and stable in a wide temperature range of-30 DEG C to 40 DEG C, the copper sheet corrosion reaches 1 a grade, the cold starting time at-30 DEG C is less than or equal to 3.5 seconds, the performance attenuation after storage for 6 months is less than or equal to 15%, the flash point is increased by more than 10 DEG C, and the comprehensive performance is significantly better than that of the prior art.

The invention discloses an oil product online detection device, and relates to the technical field of oil product detection. Comprising a detection installation part, an elastic supporting part is installed on the detection installation part, and the detection installation part is used for collecting oil products to be detected; a flash point control piece is mounted on the elastic supporting piece; the flash point control piece is used for preventing evaporation diffusion; a limiting control piece is inserted into the detection mounting piece; the limiting control piece is used for limiting the flash point control piece; an overflow part is mounted on the detection mounting piece; the overflow part is used for draining oil liquid; the flash point control piece can be matched with the suction mounting ring to automatically control and suck steam generated by heating and evaporating an oil product, and when a flash point test is carried out, the oil pot can normally generate steam to carry out the flash point test only when an ignition rod passes through the oil pot; the problem that an existing oil product on-line detection device is inconvenient to automatically control steam volatilization and diffusion during non-test is solved.

The invention relates to the technical field of ship energy control, and particularly discloses an intelligent self-adaptive methanol new energy ship supply-safety linkage control system, which comprises a data acquisition module used for acquiring and processing at least the following five types of data in real time: methanol fuel characteristic data including methanol purity, impurity components and proportion, flash point and ignition point; the ship structure and stress data comprise stress and deformation of a ship methanol storage cabin, a conveying pipeline and a key ship body part. According to the invention, a multi-dimensional data acquisition system covering methanol fuel characteristics, ship structure and stress, working conditions, full links and engine waste heat is constructed, so that the problem of limited data acquisition dimensions of an existing system is solved; intelligent adjustment of a supply strategy along with a navigation stage and a ship type is realized by relying on two-dimensional dynamic adaptation reinforcement learning, precise early warning of safety risks is realized by combining a lightweight GAN and a multi-risk coupling factor, and the limitation of solidification of a traditional control strategy is broken through.

The utility model relates to the technical field of pesticide preparation testing, in particular to a pesticide preparation flash point testing system which comprises a flash point testing box, a base is arranged at the bottom end of the flash point testing box, a flame generator is arranged on one side of the top end of the flash point testing box, heat dissipation holes are formed in the side face of the flash point testing box, and an air inlet is formed in the other side of the flash point testing box. A cooling fan is arranged in the air inlet, threaded rods are arranged at the two ends in the flash point testing box, after a pesticide preparation flash point test is completed, the pump body and the cooling fan are started at the same time, the cooling fan can blow air into the flash point testing box, and flowing of air in the flash point testing box is accelerated; meanwhile, cold water in the water tank is pumped into the coiled pipe by the pump body, cold air is generated at the coiled pipe at the moment, the cold air is blown into the flash point testing box by the cooling fan, and the loading cup in the container is cooled and cooled, so that the loading cup is rapidly cooled, the cooled loading cup can be rapidly taken out, the detection efficiency is improved, and the practicability is higher.

To provide a coolant which exhibits relatively excellent fluidity even at low temperatures and can be easily handled and stored due to having a high flash point.SOLUTION: This coolant includes an organopolysiloxane represented by formula (1) (wherein R1 is a C1-8 alkyl group or a phenyl group, and R2 is the group of R1 or the group of formula (2)).SELECTED DRAWING: None

The application belongs to the technical field of heat conducting oil, and specifically provides a high-temperature-resistant heat conducting oil and a preparation method thereof.The high-temperature-resistant heat conducting oil comprises a composite base oil, an antioxidant, a dispersant and a detergent, and the composite base oil is oligomeric siloxane stably dispersing nano boron nitride.The high-temperature-resistant heat conducting oil prepared by the application has the characteristics of high heat conduction, high flash point, high use temperature, low carbon residue, low corrosion and long-term stability.

A marine fuel oil composition is disclosed. The marine fuel oil composition comprises an acid number of less than about 2.5 mg KOH / g, a flash point temperature greater than about 140°F, and an oxygen concentration of at least about 2 wt%. Further, a process for producing marine fuel oil is disclosed.