Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

30results about How to "Improve antiknock performance" patented technology

Enhanced full-size residential building structure gas leakage explosion multi-parameter test platform

The invention belongs to the field of gas explosion test technology development, and relates to a reinforced full-size residential building structure gas leakage explosion multi-parameter test platform and method, which can be used for simulating the whole process of a gas leakage explosion accident in a real residential building scene. The gas leakage explosion evolution mechanism and disaster-causing consequence research under multiple ignition sources, multiple gas types, multiple pressure relief conditions and multiple obstacle environments can be realized. The test platform can simulate a resident house type, and through local reinforcement design and coupling test technology development of the test platform, a high detonation pressure, high simulation and multi-parameter gas explosion repeated test is realized.
Owner:BEIJING INST OF TECH

Explosion-resistant and high-temperature-resistant explosion test pipeline design method based on finite element simulation

The invention relates to an anti-explosion high-temperature-resistant explosion test pipeline design method based on finite element simulation, and belongs to the field of pipeline design and application. According to the method, mechanical and heat transfer behaviors of the pipeline under the combined action of high temperature and explosive shock waves are analyzed by simulating extreme working conditions such as explosion, fire blast and detonation, and the safety performance of the pipeline is improved. The method comprises the following specific steps: firstly, setting explosion working condition parameters based on test requirements and related standards; secondly, establishing a three-dimensional finite element model, and performing fluid dynamic simulation analysis; then, through thermodynamics and explosion impact data analysis, temperature, pressure and stress distribution is obtained, and design parameters such as the geometric structure, the material and the wall thickness of the pipeline are optimized; and finally, verifying the safety and the stability through experiments. The method improves the design efficiency and reliability, and is suitable for high-risk experiment environments such as petrochemical engineering and mines.
Owner:CHONGQING UNIV

Explosion facing surface optimization method and device of artificial dam body and computer readable storage medium

The invention discloses an explosion facing surface optimization method and device of an artificial dam body and a computer readable storage medium. The method comprises the following steps: obtaining dam body parameters and an explosion facing surface sample of a to-be-optimized dam body; under the condition that the explosion facing surface is aspheric, simulating the process that the dam body to be optimized is subjected to explosion shock waves to obtain a simulation result; the anti-knock performance of the dam body to be optimized is evaluated according to the simulation result, and an evaluation result is obtained; under the condition that the evaluation result shows that the anti-knock performance of the dam body to be optimized is lower than the anti-knock performance threshold value, the anti-knock face of the dam body to be optimized is adjusted to be a spherical anti-knock face based on the dam body parameters, a target dam body is obtained, and the spherical anti-knock face refers to the anti-knock face with the anti-knock face style being a spherical anti-knock face. The technical problems that in the related technology, the anti-explosion capacity is weak and potential safety hazards are likely to be caused due to the fact that the anti-explosion face of an artificial dam body designed through a traditional dam body design method is poor in pressure bearing capacity are solved.
Owner:SHENHUA SHENDONG COAL GRP +1

Production method of hot rolled steel coil for supercritical carbon dioxide conveying pipeline

The invention discloses a hot rolled steel coil for a supercritical carbon dioxide conveying pipeline and a production method of the hot rolled steel coil. The steel coil comprises the following chemical components in percentage by weight: 0.03 to 0.05 percent of C, 0.10 to 0.30 percent of S i, 1.20 to 1.40 percent of Mn, less than or equal to 0.010 percent of P, less than or equal to 0.002 percent of S, 0.030 to 0.050 percent of Nb, 0.005 to 0.020 percent of T i, 0.20 to 0.40 percent of Cr, 0.10 to 0.25 percent of N i, 0.020 to 0.050 percent of Al and the balance of Fe and inevitable impurities. The Nb-Ti-Cr-Ni alloy components and the TMCP rolling technology are adopted, the thickness of a steel coil is 10-15 mm, the steel coil has good strength, low-temperature toughness and carbon dioxide corrosion resistance, the impact energy at the temperature of-60 DEG C is larger than 300 J, the corrosion rate is smaller than 0.125 mm / a, and the requirement for the steel for the supercritical carbon dioxide conveying pipeline is completely met.
Owner:BAOTOU IRON & STEEL (GROUP) CO LTD

Fuel oil power improver capable of effectively removing carbon deposition and preparation method of fuel oil power improver

The invention discloses a fuel oil power improver capable of effectively removing carbon deposition and a preparation method of the fuel oil power improver. The fuel oil power improver is prepared from the following components in parts by weight: 10-20 parts of a surfactant, 10-50 parts of a dissolution promoting aid, 10-20 parts of a metal antiknock agent, 1-3 parts of an antioxidant and 50-70 parts of solvent oil. The fuel power improver prepared by synthesizing the dissolution promoting aid to replace polyether amine and polyisobutene amine not only has good solubility in gasoline, but also has the performance of efficiently eliminating the carbon deposition degree of an engine, has good dispersity and stability, and not only improves the power value of the gasoline, but also reduces the oil consumption of the gasoline.
Owner:GUANGZHOU KASDER CO LTD

A safety early warning protection system for furnace working conditions of explosive hazardous materials incineration and destruction system

ActiveCN114508759Bguaranteed temperatureImprove antiknock performanceIncinerator apparatus
The present invention discloses a furnace working condition safety early warning protection system for an incineration and destruction system of explosive hazardous materials. A feeding port and a discharge cylinder are provided on a feeding rack, a discharge gate is provided at the connection between the feeding port and the material pipe, the material pipe is connected to the furnace body, the output end of the discharge cylinder is connected to the discharge gate, a discharge in place signal switch is provided on the feeding rack on one side of the discharge gate, a contact is provided on the discharge gate, and the discharge in place signal switch is located on the moving track of the contact; the burner is connected to the furnace body through a flame channel, a gas collecting hood is provided on the top of the furnace body, the gas collecting hood is connected to the air duct, and a fan is provided on the air duct; a pressure transmitter and a temperature transmitter are respectively provided on the furnace body; the input end of the PLC controller is respectively connected to the pressure transmitter, the temperature transmitter, and the discharge in place signal switch through a line, and the output end of the PLC controller is respectively connected to the burner, the discharge cylinder, the fan, and the motor through a line. The present invention improves the explosion resistance of the furnace body.
Owner:JIANGSU JINGXU ENERGY ENVIRONMENTAL PROTECTION TECH CO LTD

Quartz pellets for silicon alloy production and preparation method thereof

The present invention discloses quartz pellets for silicon alloy production, wherein the quartz pellets contain SiO₂>96%, Al₂O₃<0.8%, and Fe₂O₃<0.8% by weight. The quartz pellets are approximately spherical in shape. When used for silicon alloy production, the quartz pellets and the carbonaceous reducing agent fall freely from the material tube and enter the surface of the ore-fired furnace. The large balls are quartz pellets, and the small balls are carbonaceous reducing agent pellets. The large and small balls are tightly packed and evenly distributed. When the furnace temperature is below 1700°C, no deflagration or explosion will occur. The quartz pellets have the characteristics of high reducibility, high explosion resistance, high specific surface area, high porosity in the pellets, low reduction starting temperature, energy saving and environmental protection, etc. The reducing atmosphere is good, and a large amount of reducing gas will enter the internal pores of the pellets to carry out microcirculation reaction, without stab fire phenomenon, and high heat energy conduction efficiency.
Owner:GANSU ZHONGTIAN ELECTRICITY SALES SERVICE CO LTD

An integrated disposal system for chemical defense, explosion prevention and decontamination

The present invention discloses an integrated chemical defense and explosion-proof decontamination disposal system, which comprises a chemical defense and explosion-proof storage and transportation tank, and is characterized in that: it also comprises a decontamination disposal device, the tank mouth locking mechanism assembly of the chemical defense and explosion-proof storage and transportation tank is simultaneously sleeved on the mouth of the tank body and the mouth of the tank cover, the decompression and unloading component and the emergency unloading component of the decompression and unloading cleaning assembly of the chemical defense and explosion-proof storage and transportation tank are respectively sealed and connected with the top of the tank body, and the cleaning component is sealed and connected with the bottom of the tank body; the harmful gas and liquid inlet of the decontamination disposal device are sealed and connected with the discharge port of the chemical defense and explosion-proof storage and transportation tank, and the outlet is discharged to the outside, the decontamination liquid inlet of the decontamination disposal device is sealed and connected with the decontamination liquid storage tank, and the decontamination liquid outlet of the decontamination disposal device is respectively sealed and connected with the filling port of the primary decontamination assembly, the filling port of the secondary decontamination assembly and the filling port of the chemical defense and explosion-proof storage and transportation tank.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 61699 +1

A high-precision double-layer explosion-proof container

The present invention aims at the drawback that the poor installation accuracy of explosion-proof containers in the prior art leads to poor concentricity, and provides a high-precision double-layer explosion-proof container, which belongs to the technical field of double-layer explosion-proof containers, and includes an outer tube, a connecting ring, an inner tube, and an explosion-proof cover. The connecting ring is fixedly arranged at the opening position of the outer tube, the inner tube is sleeved in the outer tube, and a clamping ring is sleeved on the outer side of the inner tube opening. The explosion-proof cover includes a cover plate and a cover body. The lower end surface of the cover plate is fixedly provided with a limit ring sleeved outside the connecting ring, and a screw hole is opened in the middle position of the cover plate. The cover body includes a coaxially arranged connecting column and a skirt, the connecting column is screwed with the screw hole, the skirt extends into the connecting ring, and the skirt and the connecting ring are threaded or clamped. The lower end of the skirt extends into the opening of the inner tube. The present invention has high concentricity between the various components, high installation accuracy, stable installation of the inner tube, and a small gap between the inner tube and the skirt, which can effectively improve the explosion-proof performance.
Owner:ZHEJIANG LUJIESHUN COMPARTMENT MFG

Method and system for optimizing anti-knock performance of shelter

The invention discloses a method and system for optimizing anti-explosion performance of a shelter. The method comprises the following steps that shelter characteristic parameters meeting anti-explosion requirements are configured for an area to be subjected to anti-explosion, and an initial shelter model is constructed; carrying out anti-explosion simulation by utilizing the initial shelter model to obtain dynamic stress characteristics on the initial shelter model in an anti-explosion process so as to determine an easily-damaged position; local structure strengthening is conducted on the initial shelter model according to the easily-damaged position, whether the easily-damaged position exists on the strengthened shelter model or not is judged, if not, the current strengthened shelter model serves as the optimal shelter design scheme, or if yes, the current strengthened shelter model serves as the optimal shelter design scheme. And secondary structure strengthening is carried out on the easily-damaged position on the current strengthened shelter model until the strengthened shelter model without the easily-damaged position is obtained. The anti-knock performance of the whole shelter is effectively improved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Structural design and preparation of integrated light-weight explosion-proof suit

The invention is applicable to the technical field of safety protection materials, and provides an explosion-proof suit structure and a preparation method thereof, an explosion-proof material in the explosion-proof suit is a high-performance explosion-proof fabric subjected to coating treatment, the explosion-proof suit is composed of an upper garment and trousers, and the upper garment and the trousers are respectively of an integrated explosion-proof fabric structure without splicing seams and lap joints. The explosion-proof suit provides all protection except for the head and neck of a human body, and has the advantages of light weight, softness, simple preparation process and convenience in putting on and taking off.
Owner:BEIJING AEROSPACE KAIEN NEW & ADVANCED MATERIAL CO LTD +2

Anti-explosion integrated air inlet system of FSAE racing car and machining technology of anti-explosion integrated air inlet system

According to the anti-explosion integrated air inlet system of the FSAE racing car and the machining technology of the anti-explosion integrated air inlet system, components of the anti-explosion integrated air inlet system are integrally formed, pressure fluctuation in the air inlet system can be slowed down, the engine inflation efficiency is improved by fully utilizing the resonance effect of engine air inlet airflow, and the power output performance is improved. When the air inlet system is manufactured, a high-temperature-resistant nylon material with high tensile strength is selected as a base material, a surface reinforcing layer is manufactured on the surface layer through high-temperature vacuum forming of pre-impregnated carbon fiber cloth and a thermosetting blue glue film, the overall tensile strength of the air inlet system is further improved, and the explosion-proof performance is enhanced. And the tensile strength and the anti-knock property of the whole air inlet system are enhanced while the light weight and the inflation efficiency of the engine are guaranteed to the maximum extent. The process can reduce the deformation degree of the inner blank of the pressure stabilizing cavity during thermocuring of the carbon fiber reinforcing layer as much as possible, ensures the smoothness of the inner wall of the air inlet system, and improves the inflation efficiency.
Owner:HUAQIAO UNIVERSITY

Plugging device for methanation reactor

The utility model discloses a plugging device for a methanation reactor, which relates to the technical field of methanation reactor equipment and comprises a sealing cover, two clamping seats are movably mounted on the outer side of the sealing cover, two connecting seats are respectively and fixedly mounted on the opposite sides of the two clamping seats, and four first limiting blocks are further fixedly mounted at the upper end of the sealing cover. A blocking column is fixedly installed at the lower end of the sealing cover, a weight reduction cavity is formed in the inner side of the blocking column, a pressure bearing shell is fixedly installed at the top in the weight reduction cavity, the lower end of a first limiting block is fixedly installed on the sealing cover in a welded mode, and second limiting blocks are fixedly installed on the two sides of the first limiting block in a welded mode. The pressure-bearing shell of a semi-spherical structure is installed in the plugging column, the anti-explosion capacity of the sealing cover can be improved under the condition that the weight of the whole structure is reduced, in addition, by means of the arrangement of the two clamping bases and the multiple connecting bases, the sealing cover and the end of the fixing pipe can be rapidly and fixedly connected, and the tightness of the sealing cover and the end of the fixing pipe is guaranteed.
Owner:HENAN JINMEI TIANQING COAL CHEMICAL CO LTD

Alcohol fuel barrier anti-explosion skid-mounted filling device

The invention discloses an alcohol fuel blocking anti-explosion skid-mounted filling device which comprises a storage tank used for storing an alcohol fuel medium, the two ends of the storage tank are communicated with an unloading module and a filling module respectively, the storage tank comprises an inner tank body and an outer tank body arranged outside the inner tank body in a sleeving mode, the inner tank body makes contact with the alcohol fuel medium, and the outer tank body makes contact with the alcohol fuel medium. The design pressure of the inner tank body is larger than the working pressure of the inner tank body, and the inner tank body is further filled with a plurality of blocking anti-explosion pieces of a net-shaped structure. While the mobility problem of the filling device is solved, the protection level of the filling device is guaranteed, and the filling device is suitable for alcohol adding in large construction sites such as logistics parks, ports, wharfs, airports and mines and scenes such as the interiors of enterprises.
Owner:HOUPU CLEAN ENERGY GRP MARINE EQUIP CO LTD

A fiber reinforced tendon mesh cutting platform

PendingCN122441850AAvoid the problem of accidentally cutting the first ribIntegrity guaranteedFiberCross connection
The application discloses a fiber reinforced bar mesh cutting platform, which comprises a workbench for carrying the mesh, a cutting unit arranged above the workbench, and a detection unit arranged in the workbench. The detection unit comprises a movable detection rod for detecting the position of the mesh, and the detection rod is arranged in parallel with the cutting unit. The mesh is composed of a plurality of first bars and second bars which are connected to each other perpendicularly and cross each other, and the first bars are located above the second bars. The highest point of the detection rod is higher than the lower surface of the first bars. The cutting unit is configured to perform a cutting action when the detection rod is not pressed down by the first bars. By arranging the movable detection rod in parallel with the cutting unit, and by arranging the highest point of the detection rod to be higher than the lower surface of the first bars, the cutting action is performed only when the detection rod is not pressed down by the first bars, thereby effectively avoiding the problem of the cutting unit mistakenly cutting the first bars, and guaranteeing the structural integrity of the mesh and the cutting precision.
Owner:ZHEJIANG XINNA COMPOSITE MATERIAL CO LTD

Rock bench pre-reinforcement blasting construction method

PendingCN122543436Areduce trimmingreduce workload
The present application relates to a kind of rock platform pre-reinforcement blasting construction method, comprising the following steps: obtaining rock platform pre-reinforcement parameters, and based on rock platform pre-reinforcement parameters, establish rock platform pre-reinforcement model;Based on rock platform pre-reinforcement model, excavate construction area to form working face;First hole site is drilled in working face, which penetrates reserved protective layer and extends into rock platform pre-set depth;Stop slurry isolation device is set at free section, and anchor rod is installed at first hole site, and free section of anchor rod is located in reserved protective layer;Grouting is carried out at anchoring section of anchor rod, forming grouting anchoring section, and anchoring section of anchor rod is located in rock platform;Reserved protective layer is blasted;After blasting, reserved protective layer is cleaned, and rock platform is accepted.The above-mentioned rock platform pre-reinforcement blasting construction method improves the forming face rock platform blast resistance from inside, effectively reduces the secondary damage of protective layer blasting, and effectively maintains the integrity and flatness of profile after blasting.
Owner:中国水利水电第七工程局有限公司 +1

Building structure resistant to blast impact and method for its construction

The application provides an anti-gas explosion impact building structure, comprising: a building foundation; a building side facade fixed on the building foundation to enclose a building indoor area; wherein the building side facade is composed of multiple reinforced steel columns and multiple building wallboards arranged alternately; the building wallboard comprises: two steel structure corrugated plates, and a reinforcing layer and an explosion-proof layer stacked between the two steel structure corrugated plates; a building roof made of two steel structure corrugated plates and an explosion-proof layer arranged between the two steel structure corrugated plates, and the building roof is fixed on the building side facade. The anti-gas explosion impact building structure and the construction method thereof improve the structural strength and the overturning resistance of the anti-gas explosion impact building structure by fixing the reinforced steel columns on the building foundation, the building wallboards and the building roof arranged at the top of the building side facade formed by the reinforced steel columns and the building wallboards, and solve the problems of low building structure strength, easy overturning and weak explosion resistance in the prior art.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Prefabricated integral anti-explosion wall and construction method thereof

The invention belongs to the technical field of building walls, and particularly relates to a prefabricated integral type anti-explosion wall and a construction method thereof.The prefabricated integral type anti-explosion wall comprises a C-shaped steel framework and further comprises a plurality of reinforcing steel bars, the reinforcing steel bars are fixed to the inner side of the C-shaped steel framework, and the reinforcing steel bars are divided into two groups and located on the two sides of the C-shaped steel framework respectively; a plurality of composite steel plates are fixed to the two sides of the C-shaped steel framework and fixedly connected with the reinforcing steel bars, a plurality of through holes are formed in the side walls of the composite steel plates, a plurality of shear-resistant studs are evenly fixed to the side walls of the reinforcing steel bars, the shear-resistant studs penetrate through the through holes of the composite steel plates on the same side, and the shear-resistant studs are distributed on one side of the C-shaped steel framework. According to the construction method, anti-explosion wall plate installation and concrete wall pouring can be completed synchronously, the wall anti-explosion capacity and the connecting strength are improved, the construction difficulty is lowered, the construction efficiency is improved, the wood formwork consumption is reduced, follow-up decoration construction is facilitated, and the building anti-explosion performance can be further improved.
Owner:中建三局集团西北有限公司 +1

Explosion-proof electric appliance cabinet capable of releasing pressure

The invention relates to the technical field of explosion-proof electric appliance cabinets, in particular to a pressure-relief explosion-proof electric appliance cabinet which comprises a cabinet body, a pressure relief valve, a positive pressure system and an isolation assembly. The cabinet body comprises an outer shell and an inner shell; the isolation assembly comprises four groups of isolation plates, a pressure relief cavity formed between the isolation plates and the inner shell, and a pressure relief plate connected with the isolation plates; a pressure valve is arranged at the corner angle of the inner shell; a positive pressure cavity is formed between the outer shell and the inner shell, and a mounting cavity is formed in the inner shell; and when high pressure is generated in the mounting cavity, the isolation plate is opened to introduce high-pressure gas into the pressure relief cavity for pressure relief. According to the invention, by arranging the isolation assembly to isolate the electrical components in the inner shell and arranging the pressure relief cavity, secondary disasters caused by internal high-temperature and high-pressure gas leakage can be prevented through the pressure relief cavity when the internal electrical components break down and burn.
Owner:颜威乐

Marine fuel synergist and preparation method thereof

The invention provides a marine fuel synergist and a preparation method thereof, and the marine fuel synergist specifically comprises the following raw materials by weight: 50-65 parts of a cleaning synergist; the part number of the tension cyclic hydrocarbon is 20 to 40; 5 to 15 parts of a nitro compound; the cleaning synergist is aviation 3 # jet fuel treated by a fuel additive production device, and the high-tension cyclic hydrocarbon is one or more of a cyclopropane derivative, a cyclobutane derivative, a cyclopropene derivative, a cyclobutene derivative and a tricycloalkane derivative. The nitro compound is one or more of nitromethane, nitroethane and nitropropane. By adding the fuel synergist, sufficient combustion of marine fuel oil is achieved, emission of harmful substances such as carbon monoxide, hydrocarbon, oxynitride and particulate matter can be reduced at the same time, and the problem of carbon deposition at positions such as an air inlet valve, an oil nozzle and a combustion chamber of an engine is effectively solved and inhibited.
Owner:SHENZHEN HOUHE TECH

Broken bridge aluminum door and window

The utility model relates to the technical field of doors and windows, in particular to a broken bridge aluminum door and window which comprises a window frame, a window sash arranged in the middle of the window frame and a heat insulation component arranged in the window sash, electric heating wires are arranged in two ports, heat conduction layers are arranged on the upper portion and the lower portion of each electric heating wire, and U-shaped plates are arranged at the left end and the right end of each electric heating wire. An explosion-proof assembly is arranged in the middle of the interior of the window sash, the explosion-proof assembly is sequentially provided with a glass body, an explosion-proof layer, a fireproof layer and a protective layer from inside to outside, the heat insulation assembly comprises a shell and a fixing block arranged in the middle of the shell, and a shock pad is arranged at the bottom of the fixing block. The fireproof layer is arranged on the outer side of the anti-explosion layer so that heat of the glass body can be blocked conveniently when a fire occurs, the sealing strip on the inner wall of the frame opening is tightly attached to a window sash so that smoke and flames outside a house can be prevented from entering a room through a window, and the protection layer is arranged on the outer side of the fireproof layer so that damage of ultraviolet rays to indoor objects can be relieved conveniently.
Owner:HEBEI WANLIN DOORS & WINDOWS

Pure-carbon-dioxide-resistant and anti-explosion ternary fluororubber material and preparation method thereof

The invention discloses a pure-carbon-dioxide-resistant anti-explosion ternary fluororubber material and a preparation method of the pure-carbon-dioxide-resistant anti-explosion ternary fluororubber material. The material is prepared by taking ternary fluororubber raw rubber as a matrix, matching magnesium oxide, calcium hydroxide, light carbon black, thermal cracking carbon black, flaky calcium carbonate, a flaky air blocking agent, a WS280 processing aid, palm wax and a fluorine-linked 5 # vulcanizing agent, and carrying out plastifying and mixing, first-stage mold pressing vulcanization and second-stage drying oven vulcanization on the matrix and magnesium oxide, calcium hydroxide, light carbon black, thermal cracking carbon black, flaky calcium carbonate, flaky air blocking agent, WS280 processing aid, palm wax and fluorine-linked 5 # vulcanizing agent. Through the physical barrier effect of the flaky filler and the collaborative design of a specific vulcanization system, the anti-permeation and anti-bubbling performance of the material in a high-temperature and high-pressure pure COenvironment is remarkably improved, and meanwhile, good mechanical strength, suitable hardness and low-compression permanent deformation are kept. The preparation process of the material is compatible with traditional rubber processing, the process is stable and controllable, and the material is suitable for sealing parts under harsh working conditions such as carbon dioxide capture, utilization and storage and has a good industrial application prospect.
Owner:WENZHOU OUHONG SEAL COMPONENTS CO LTD

A special fuel suitable for enhanced compression ignition engine

ActiveCN116396785BImprove antiknock performanceImprove combustion efficiencyBiofuelsLiquid carbonaceous fuels
The present invention belongs to the field of petrochemical industry, and specifically provides a special fuel suitable for strengthening compression ignition engines, wherein the special fuel is composed of coal-based diesel, tripropylene glycol methyl ether, anti-wear agent, antioxidant and metal corrosion inhibitor. Compared with traditional automotive diesel, the special fuel has a higher cetane number, better lubricity and higher oxygen content; it ensures that the power performance can still be improved at the maximum throttle opening of the strengthened engine, and also ensures that the engine does not detonate under high load; better lubricity can reduce the wear and blockage of precision parts such as diesel engine injector needle valve pairs and fuel injection nozzles, and improve the running stability of the engine. At the same time, it does not contain a cetane number improver, which avoids the disadvantages of the special fuel in a closed and poor light-shielding condition, such as the decomposition of the cetane number improver, and the increase of fuel acidity to corrode metal parts.
Owner:SHANDONG DONGBO NEW ENERGY HLDG DEV CO LTD

Production method for improving defects of glass bottle body

PendingCN119591310Areduce the chance of fragmentationImprove the safety of useBlow machinesBlowing mouldsBottleForming processes
The invention provides a production method for improving bottle body defects of a glass bottle, which comprises the following steps: primary mold forming: injecting molten glass into a primary mold, blowing and forming to obtain a glass bottle blank, and molding and forming: feeding the glass bottle blank into a forming mold, blowing and forming to obtain a finished glass bottle, the mold is characterized in that the forming surface of the mold forming choke plug is sunken downwards, the periphery of the forming surface is an arc chamfer, the radius of the chamfer is 10mm, an anti-explosion line is arranged at the chamfer part, the length of the anti-explosion line is 6.5 mm, and the width of the anti-explosion line is 1.2 mm. By controlling the glass bottle forming process, the quality of a finished glass bottle is improved, the anti-knock performance of the bottom of the glass bottle and the wear-resistant degree and identification degree of patterns are improved, the bottle body strength of the glass bottle is greatly improved, the burst probability of the patterns and the bottom of the glass bottle is reduced, the probability of fragmentation of the glass bottle in the using and transporting process is reduced, and the service life of the glass bottle is prolonged. The glass bottle use safety is improved, and the glass bottle recycling cost is reduced.
Owner:GUIZHOU HUAXING GLASS CO LTD

Fabricated wall structure with embedded low-yield-point corrugated steel plates for deep sea islands and reefs and fabricated anti-explosion building

The invention relates to a fabricated wall structure with embedded low-yield-point corrugated steel plates for deep sea islands and reefs and a fabricated anti-knock building, and the fabricated wall structure comprises an outer wall plate, an inner wall plate, an outer wall plate, an inner wall plate, an inner wall plate, an outer wall plate and an inner wall plate, the outer wall plate is formed by butt welding and connecting at least two first stiffening steel plates; the inner-layer wallboard is formed by welding and connecting at least two second stiffening steel plates in a butt joint manner; the two interlayer corrugated steel plates are arranged between the outer-layer wall plate and the inner-layer wall plate, the wave crests of the two interlayer corrugated steel plates are opposite, the wave troughs of the two interlayer corrugated steel plates are opposite, and an energy consumption cavity is formed between the wave troughs; the multiple corrugated steel plate fixing devices are evenly arranged on the two interlayer corrugated steel plates, each corrugated steel plate fixing device comprises a set of clamps, and the clamps are symmetrically arranged on the two sides of the positions where the wave crests of the two interlayer corrugated steel plates are tightly attached, connected with the outer-layer wall plate and the inner-layer wall plate correspondingly and suitable for clamping and fixing the two interlayer corrugated steel plates; and the energy-absorbing and shock-absorbing material is filled in the energy consumption cavity. The wall body has the advantages of being high in assembly speed, resistant to explosion and penetration and high in marine corrosion resistance, and is suitable for deep sea island reef assembly type buildings.
Owner:CSIC INTERNATIONAL ENGINEERING CO LTD +1

Sustainable lead-free aviation gasoline fuel composition and preparation method thereof

The present invention relates to the technical field of gasoline, particularly to a sustainable lead-free aviation gasoline fuel composition, which comprises the following components by volume: 5-20 parts of toluene; 10 to 25 parts of xylene; 5 to 10 parts of aniline; 20-55 parts of an alkane mixture; 5-15 parts of sustainable aviation fuel; and 2-5 parts of fuel ethanol. The method for preparing the sustainable lead-free aviation gasoline fuel composition comprises the following steps: firstly mixing a mixture of toluene, xylene and alkane and sustainable aviation fuel, then adding aniline and fuel ethanol, and stirring for 1 hour to complete mixing of the lead-free aviation gasoline fuel composition. The lead-free aviation gasoline fuel composition has the characteristics of high octane number, low sulfur content, low oxygen content and the like, and all the components are generated in a sustainable production mode, so that the burden of wastes on the environment is reduced, and the influence of carbon emission on the environment is reduced.
Owner:TANGSHAN JINLIHAI BIODIESEL

A fireproof and explosion-resistant multi-defense combined shear wall

ActiveCN119062032BImprove antiknock performanceensure safetyWallsProtective buildings/sheltersMortarReinforced rubber
The present invention discloses a fireproof and explosion-resistant multiple defense combined shear wall, which belongs to the technical field of shear walls. The shear wall includes a negative Poisson's ratio layer, a high damping mortar layer, a reinforced rubber aggregate concrete layer, a high damping mortar layer, and a UHPC steel concrete layer, which are sequentially arranged from the outside to the inside. Compared with the prior art, the present invention has the following beneficial effects: the multiple defense methods are used to block the explosion impact layer by layer, which greatly reduces the possibility of the overall collapse of the wall after the explosion impact. At the same time, the high damping mortar layer can also play an energy-consuming role, thereby greatly improving the explosion resistance of the shear wall, ensuring that it can maintain the proper bearing capacity when it is subjected to the explosion impact; finally, the application of the fireproof coating improves the fire resistance of the shear wall, which can well cope with the fire that may occur after the explosion.
Owner:HUNAN UNIV

A type of colored laminated glass

This utility model relates to the field of laminated glass and discloses a colored laminated glass, comprising two glass bodies, two fixing plates, and two limiting plates. Limiting grooves are formed on the upper and lower sides near the middle of the two fixing plates, and placement grooves are formed at the upper and lower edges of the two fixing plates. A placement block is fixedly disposed at the middle position of one of the opposite sides of the two limiting plates, and limiting blocks are fixedly disposed at both ends of one of the opposite sides of the two limiting plates. A PVB film is disposed between the two glass bodies. Each glass body includes a hydrophobic film layer, with a glass layer disposed within the inner end of the hydrophobic film layer, and an explosion-proof film layer disposed within the inner end of the glass layer. The hydrophobic film layer is made of siloxane coating, and the explosion-proof film layer is made of polyvinyl butyral. In this utility model, the hydrophobic film layer on the surface of the glass body can effectively prevent moisture adhesion, and the explosion-proof film layer can enhance the impact resistance and explosion resistance of the glass.
Owner:HEBEI JINDIANYI GLASS CO LTD