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153 results about "Fire performance" patented technology

Fire performance is a group of performance arts or skills that involve the manipulation of fire. Fire performance typically involves equipment or other objects made with one or more wicks which are designed to sustain a large enough flame to create a visual effect.

Method for producing flame-retardant azo-ydroxymethyl resin modified reinforced wood material

InactiveCN103112064AImprove flame retardant performanceSignificantly improved flame retardant properties, increased compressive strengthWood treatment detailsPressure impregnationResidual carbonMonoxide
The invention relates to a method for producing a flame-retardant azo-ydroxymethyl resin modified reinforced wood material, which relates to a method for producing a flame-retardant modified wood material and aims at solving the technical problems that the existing azo-ydroxymethyl resin modified reinforced wood material has poor flame-retardant smoke-suppressant performance. The production method comprises the steps of weighing azo-ydroxymethyl resin, flame retardants, functional aids and water, mixing the materials to obtain a solution, then putting a wood material into the solution for dipping treatment, and drying and fixing the wood material to obtain the flame-retardant azo-ydroxymethyl resin modified reinforced wood material. The total heat release of the wood material is 22-28 MJ/m2 and reduced by 40 percent, the ignition time is 17-22 seconds and prolonged by 24 percent, the fire performance index is 0.062-0.095 and improved by 56 percent, and the mass fraction of residual carbon monoxide and carbon oxide is 31.08-37.5 percent and increased by 43 percent; the flame retardant performance is improved, and no environment pollution is produced, and the application field of azo-ydroxymethyl resin modified reinforced wood material is widened.
Owner:NORTHEAST FORESTRY UNIVERSITY

Analysis system and analysis method for overall fire resistance of beam-post wood structure frame

The invention discloses an analysis system and an analysis method for overall fire resistance of a beam-post wood structure frame. The analysis system comprises an actual fire simulation module, a structure interior finite element heat transfer analysis module and a structural field finite element analysis and calculation module, wherein the actual fire simulation module is used for generating a simulated fire working condition corresponding to the actual fire working condition in the beam-post wood structure frame; the structure interior finite element heat transfer analysis module is used for acquiring interior temperature distribution of the wood structure under the simulated fire working condition generated by the actual fire simulation module; the structural field finite element analysis and calculation module is used for loading the wood structure so as to acquire structural deformation and damage. With the adoption of the analysis method for fire resistance of the beam-post wood structure frame, fire development, structural interior heat transfer and structure response in the fire development process are simulated, quick analysis of deformation and damage development of the structure in the fire bearing process is realized, visualization can be realized, the method has the characteristics of low cost and conciseness, and practical value is provided for fire performance design and fire risk assessment of the wood structure.
Owner:SOUTHEAST UNIV

End-fire antenna based on composite structure of surface waveguide and supersurface absorber

The invention discloses an end-fire antenna based on a composite structure of a surface waveguide and a supersurface absorber and relates to the technical field of microwave antennas. The structure ofthe end-fire antenna mainly comprises the surface waveguide, an excitation patch, a reflector patch, the supersurface absorber and the like. The surface waveguide can conduct a surface wave and can show the frequency selective surface characteristics of being low-pass at a low frequency and band-pass at a high frequency, thereby inhibiting back monostatic RCS of the end-fire antenna in one part of bands. The excitation patch and the reflector patch at the upper part of the surface waveguide can excite propagation of the surface wave in the surface waveguide along one direction and radiate electromagnetic energy on the edge of the waveguide due to the discontinuity. In addition, the supersurface absorber can absorb electromagnetic waves on one part of bands, thereby inhibiting RCS of the end-fire antenna on the bands. RCS inhibition of the surface waveguide is combined with that of the supersurface absorber, so that the end-fire antenna can achieve good end-fire performance and the RCSinhibition function within an ultra-wideband range.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Non-cracking environmentally-friendly flooring material

The present invention discloses a non-cracking environmentally-friendly flooring material characterized by comprising the following components in parts by weight: 50 parts of phosphorus gypsum powder, 20-30 parts of ironmaking blast furnace slag, 15-20 parts of perlite, 10-12 parts of ultra-fine talcum powder, 6-8 parts of mineral fiber, 5-7 parts of sand and gravel, 8-10 parts of gypsum, 2-3 parts of a foamer, 2-3 parts of a modified water reducer, 3-4 parts of ash calcium, 10-15 parts of silica sand, 4-6 parts of a binder, 0.8-1 part of a compatibility and 2-3 parts of a flame retardant; the non-cracking environmentally-friendly flooring material turns waste into treasures, by addition of the phosphorus gypsum powder, the perlite and other components with excellent fire-prevention and anti-corrosion effects, the mechanical properties and the chemical properties are better than that of ordinary building materials, the prepared non-cracking environmentally-friendly flooring material is small and even in hole and bubble diameter, has the functions of light weight, thermal insulation, fire protection, sound insulation and air humidity condition, has good anti-aging and anti-photodegradation properties, is less susceptible to temperature and pH and other external environment to degenerate, and greatly improves the fire performance of thermal insulation materials.
Owner:王威淞

Outer burner cap with flame avoiding and flame propagation properties

The invention relates to a burner outer fire cover with fire avoidance and fire transfer performance, which includes an outer fire cover body and a fire plate, the outer fire cover body includes an outer ring and an outer fire cover inner ring, and the outer ring of the outer fire cover is provided with a The upper and lower rows of fire holes, the upper row of fire holes are smaller than the lower row of fire holes, the upper and lower rows of fire holes are arranged discontinuously on the outer fire cover to avoid fire from the furnace frame feet, and the outer ring of the outer fire cover is arranged discontinuously The positions of the upper and lower rows of fire passage holes are provided with fire transmission grooves, which are connected to the main combustion fire passage holes of the outer fire cover; the ignition plate is arranged on the body of the outer fire cover, and the inner ring of the outer fire cover corresponds to the position of the fire ignition plate There is an ignition hole. Its beneficial effects are: the upper row of fire holes in this embodiment is smaller than the lower row of fire holes, so that the lower row of main fires can fully contact the external air, and the upper row of stabilizing flame holes ensures the stability of the entire flame; and the fire through holes are cut off at a certain angle , to increase the service life of the grate and reduce the CO content in the combustion products; and connect the outer fire cover with a fire transfer groove to ensure the reliability of flame transfer.
Owner:ZHEJIANG SHUAIKANG ELECTRIC

Reciprocating type vertical conveying system

The invention discloses a reciprocating type vertical conveying system which mainly comprises an ordinary conveyor and a vertical conveyor; a conveying plate is arranged on the ordinary conveyor, and cargos are put on the conveying plate and are automatically conveyed into a vertical lifting trolley through the ordinary conveyor; the cargoes are conveyed by the vertical lifting trolley to a second floor under the drive of a vertical lift and are discharged through the ordinary conveyor on the second floor to complete the whole conveying process; a fire shutter door and a super size detection mechanism are mounted at each exit/entrance of the vertical lift; a hand operation box is arranged on each floor to control the operation process; a main electrical control box is arranged at the bottom of the vertical lift; a guardrail is arranged on each side of an exit/entrance of the vertical conveying system. The reciprocating type vertical conveying system disclosed by the invention has the benefits that the cargos are convenient to convey and discharge, the operation is convenient and quick, the conveying efficiency is high, the conveying capacity is strong, safety mechanisms are completely configured, the cargo size is guaranteed to meet the conveying requirements, and the fire performance and the safety performance are high.
Owner:JIN HOUNG FUH (CHUZHOU) CONVEYING EQUIP CO LTD

Power transmission line cross-fire performance evaluation detection platform

ActiveCN107131915AStudy overfire performanceFire test implementationMeasurement devicesTest fixtureTest platform
The invention discloses a power transmission line cross-fire performance evaluation detection platform. The performance evaluation detection platform comprises a cable wire cross-fire installation and a post cross-fire performance evaluation test platform, the cable wire cross-fire installation comprises a test receiving wire and a test support, a power supply unit, an ignition source system, and a parameter measurement system, wherein the ignition source system is divided into a gas wooden pile simulation ignition source system, a gas simulation ignition source system, and a vegetation simulation ignition source system; the parameter measurement system comprises a temperature measurement device and a resistivity measurement system. The post cross-fire cable wire comprehensive assessment test platform comprises a post cross-fire cable wire bracket, and a performance test installation, the performance test installation comprises a post cross-fire cable wire mechanical performance test system, an image analysis system, an electrical performance test system and a basic physics performance test system. By the power transmission line cross-fire performance evaluation detection platform, the power transmission line cross-fire simulation tests can be achieved under different ignition source conditions, and comprehensive analysis and evaluation of the mechanical properties, electrical properties, image features, and physical properties of the post cross-fire cable wires.
Owner:ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
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