153 results about "Fire performance" patented technology

Cable coatings having effective low-smoke emission, fire resistance and moisture resistance provided by a single layer are described. The cable coatings contain an base polymer, a oxygen containing ethylene copolymer, a fire retardant and a synergistic blend of magnesium hydroxide and aluminum hydroxide. Cables coated with the described coatings have improved wet electrical performance, and satisfactory fire performance and smoke characteristics.

The invention relates to computer control and theatrical performances technology field, the integrated control system with Ethernet-based large fountain and effective performances. The system comprises the central control part, the communications control part, the fountain drive and execution machine part, and the effective performance system part. The central control part includes computer station and servers, real-time recording the information in the database server; the communication control part includes the communication controller and the fountain controller, to complete the conversion among different agreement in the system and control the analysis and output of the commands; the fountain drive and execution machine part completes the driven and output of the machinery and electrical equipment, according to the control commands sent by the communication control part; the effective performance part includes computer lights performances system, fire performances system, water screen projection performance system, laser performance system, and according to the control commands sent by the communication control part, to reach the integrated performance effect.

A cable (1) having a conductor (3), an insulating layer (2) which forms a self-supporting ceramic layer when exposed to elevated temperatures experienced in a fire, and an additional heat transformable layer (4). The additional layer (4) can be another layer which forms a self-supporting ceramic layer when exposed to fire, or it can act as a sacrificial layer which decomposes at or below the temperature that the insulating layer forms a ceramic. The addition layer can enhance the strength of the layers before, during or after the fire, the structural integrity of the insulating layer (2) after the fire, the resistance of the layers to the ingress of water after the fire, or the electrical or thermal resistance of the layers during and after the fire.

A fireproof insulation sheet material and a processing technology thereof relate to a building decoration material. The fireproof insulation sheet material includes, by weight percentage, 8%-27% of foam insulation particles, 10%-30% of a resin adhesive agent, 2%-8% of an acid agent, 10%-20% of a quartz material, 10%-20% of expanded graphite, 10%-30% of a heat absorbing material, and 6%-18% of an insulation stone flour or insulation asbestos. The processing technology of the fireproof insulation sheet material is simple and practicable, the foam particles are provided with micropores, so as to facilitate infiltration of other raw materials into the foam particles. The prepared fireproof insulation sheet material has the advantages of safety, environment-friendliness, no pollution, excellent insulating performance, long service life, no smoke emission in high temperature, resistance to high temperature of 1000 DEG C, fire performance reaching A-level, and thermal conductivity less than 0.039 w / m.k.

A gas spring having an internal vibration damper for an air gun charging system. The gas spring including a relatively thin liner which is received within and abuts the elongated inner and / or outer wall of the tubular gas spring. The liner(s) absorbs vibration in the air gun to improve firing performance. A guide sleeve mounted to the outer surface of the gas spring abuts an air gun's tubular compression piston to transfer any vibrations in the compression piston to the liner. A tubular counter-weight is slidably mounted about the outer wall of the gas spring and strikes a forward end of the charging system after the air gun is fired to counter the post-firing recoil.

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.

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.

Polymer extruded or expanded foams that contain modifier-free nanoclays are provided. The addition of modifier-free nano-clays to extruded or expanded foam products improves the thermal properties, mechanical properties, and fire performance properties. Water or a water-containing compound is used as a carrier for the modifier-free nanoclays. The final foamed products may be utilized in building application such as foamed insulation products and in underground applications such as highway insulation. A preferred modifier-free nanoclay is Na+MMT. Modifier-free nanoclay particles may be injected into a polymer during an extrusion foaming process. In another embodiment of the invention, polymer beads containing water / nanoclay particles are formed using inverse emulsion / suspension polymerizations and expanded or extruded into a foamed product. In a further embodiment, a modifier-free nanoclay particle is encapsulated in a super-absorbent material, which may be used in an expanding or extruding process.

The invention relates to an anhydrous stemming for a blast furnace. The anhydrous stemming is prepared from the following raw materials in percentages by weight: 30-40 percent of high-alumina bauxite, 10-15 percent of high-purity silicon carbide, 20-25 percent of soft clay, 10-25 percent of carbonaceous material, 5-15 percent of submicron powder, 15-25 percent of binding agent, and additionally silicon metal powder addictives accounting for 1-3 percent of the total weight of the raw materials. The anhydrous stemming has the advantages of favorable high-temperature fire performance, linearity change ratio of lower than 0.3 percent under the condition of 1400 DEG C*2h, breaking strength of more than or equal to 10MPa, high intensity, slag-iron resistant scouring, easy sintering, excellent work performance, less pollution and low production cost, and is beneficial to environment protection as well as popularization and application.

Cable coatings having effective low-smoke emission, fire resistance and moisture resistance provided by a single layer are described. The cable coatings contain an base polymer, a oxygen containing ethylene copolymer, a fire retardant and a synergistic blend of magnesium hydroxide and aluminum hydroxide. Cables coated with the described coatings have improved wet electrical performance, and satisfactory fire performance and smoke characteristics.

Foam blowing agent blends containing trans-1,2-dichloroethylene and one or more hydrofluorocarbons are provided, as are foam compositions containing such blends. The resulting foams exhibit dramatic improvement in fire performance.

The invention discloses a gasoline additive for an environmental protection and energy-saving vehicle. The gasoline additive comprises the following components in parts by weight: 12-18 parts of nitromethane, 5-8 parts of boron, 2-5 parts of pyridine, 6-8 parts of didodecyldimethylammonium, 3-6 parts of carbon fluoride, 1-3 parts of magnesium perchlorate, 2-4 of BHT (butylated hydroxytoluene), 1-3 parts of light calcium carbonate, 4-7 parts of dimethyl acetal, 4-7 parts of 3-methyl-1-butylene, 16-21 parts of methyl tert-butyl ether, 6-9 parts of 2,2,3-triptane, 1-3 parts of cerium oxide, 1-3 parts of beryllium carbide, 5-8 parts of N,N-dimethylaniline and 2-4 parts of amino acid palladium complex. The additive can effectively improve the gasoline quality, increase the gasoline octane number, enhance the fire performance of fuels, can be completely burned together with the fuels without generating precipitation or residues, reduce the tail gas exhaust pollution of motor vehicles, reduce the running cost of the motor vehicles, and has the obvious oil saving effect.

The invention discloses an environment-friendly nano-composite high polymer control cable. Multiple insulated conductor cores are intertwisted to form a cable core; a packing layer is arranged in a gap of cable cores; each insulated conductor core consists of a conductor, an inner mica wrapped refractory layer and an insulating layer from inside to outside. The insulating layer is a polyethylene montmorillonite nano-composite insulating layer; and a waterproof polyester tape, a wrapping layer, an outer mica tape refractory layer, an oxygen insulation waterproof layer, a galvanized steel strip armored layer and a restrictive coating successively are arranged outside the cable core and the packing layer. The cable has the advantages of high environmental protection performance, good ant and rat prevention performance, fire performance and radial and axial waterproof performance, and high mechanical strength; and during burning, little smoke and no harmful haloid acid substance are produced.

The invention provides an energy-saving and environment-friendly building material and a preparation method thereof, and relates to the field of building materials. The energy-saving and environment-friendly building material includes the following raw materials in parts by weight: quartz sand, gravel, cement, waste straw, waste extruded board, ceramic fiber, bentonite , aluminum silicate, glass wool, expanded vitrified microspheres, asbestos, calcium oxide, graphite powder, vermiculite, binder, air-entraining agent, retarder, water reducer and water; the preparation method comprises the following steps: ( 1) Weighing raw materials, (2) roasting vermiculite, (3) pulverizing, (4) stirring, (5) molding, demolding and curing. The invention solves the problem of lack of building materials with high compressive strength, good fireproof performance, good thermal insulation performance and good energy saving and environmental protection performance in the current construction market.

The invention discloses an environment-friendly nano-composite polymer power cable. Multiple insulated conductors are intertwisted to form a cable core; a packing layer is arranged in a cable core gap; each insulated conductor consists of a conductor, a mica wrapped refractory layer and an insulating layer from inward to outward; the cable is characterized in that the insulating layer is manufactured by adopting a polyethylene montmorillonite nano-composite; and a waterproof polyester tape, a halogen-free glass fiber tape, a mica tape refractory layer, an oxygen insulation waterproof layer, a stainless steel strip armored layer and a restrictive coating successively covers outside the cable core and the packing layer. The cable has the advantages of high environmental protection performance, good ant and rat prevention performance, fire performance and radial and axial waterproof performance and the like, and high mechanical strength; and during burning, little smoke and no harmful haloid acid substance is produced.

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.

A cable (1) comprises a conductor (3), an insulating layer (2) which forms a self-supporting ceramic layer when exposed to elevated temperatures experienced in a fire, and an additional heat transformable layer (4). The additional layer (4) can be another layer which forms a self-supporting ceramic layer when exposed to fire, or it can act as a sacrificial layer which decomposes at or below the temperature that the insulating layer forms a ceramic. The addition layer can enhance the strength of the layers before, during or after the fire, the structural integrity of the insulting layer (2) after the fire, the resistance of the layers to the ingress of water after the fire, or the electrical or thermal resistance of the layers during and after the fire.

The invention provides a new method for preparing a phosphorus-nitrogen-carbon trinity intumescent flame retardant with hexamethylolmelamine, melamine and phosphorus halide as the main raw materials and an inert organic solvent as the reaction medium. The reaction of methylol melamine and phosphorus halide in an inert organic solvent to obtain an esterification product; then adding water to the esterification product for hydrolysis, after the organic phase and the aqueous phase are separated, the organic phase is separated to obtain a hydrolyzate solution; the hydrolyzate Melamine is added to the solution to form a salt, and a white precipitate is produced to obtain hexamethylol melamine phosphate melamine salt. The compound molecule contains three elements of phosphorus, nitrogen and carbon, that is, an intumescent flame retardant of the trinity of phosphorus, nitrogen and carbon. Since an inert organic solvent is used as the reaction medium, the preparation method is convenient to operate and is conducive to realizing industrial production. Excellent combustion performance.

A pallet includes fire retardant coatings to improve the overall fire performance of the pallet. First, the coatings may be used in combination with fire retardant additives in the plastic material of the pallet in order to reduce the amount of additives, thereby reducing cost and improving the structural performance of the pallet. Alternatively or additionally, the fire retardant coatings may be placed inside the pallet. This eliminates the chance that the fire retardant coating will get worn off during use. For example, the coating could be placed between the reinforcement sheet and the deck or runners, within the columns, etc.

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.

A phenolic closed-cell foam includes polyvinyl pyrrolidone with a molecular weight of from 5,000 to 80,000 as a toughening agent. The polyvinyl pyrrolidone is present in the mixture (excluding blowing agent) in an amount of from 4% to 20% by weight. The foam cells are substantially free of holes or surface defects. The foam has superior fire performance.

The invention discloses a Vivaldi antenna array which specifically comprises an even number of Vivaldi antennas, metal column rings, medium cones and sub-miniature-A (SMA) connectors. The even number of Vivaldi antennas are evenly and vertically arranged on casings of the metal column rings. The medium cones are arranged at the top ends of the metal column rings. The SMA connectors are placed on inner walls of the metal column rings, cores penetrate through the metal column rings to be connected with one end of a feedback microstrip line of each Vivaldi antenna, the other end of each feedback microstrip line is connected with a ground plane of the antennas through a metallized through hole, and the casings are connected with the metal column rings. The antenna array adopts monopolar Vivaldi antennas as antenna units, a resistor is integrated to the tail end of each antenna, and the characteristics of miniaturization and broadband are achieved. Due to the fact that a monopolar structure is adopted, the reflecting influence of the medium cones on aerial radiation electromagnetic waves is small, and end-on-fire performance is kept.

The invention relates to an outer burner cap with flame avoiding and flame propagation properties. The outer burner cap comprises an outer burner cap body and a flame leading plate; the outer burner cap body comprises an outer burner cap body outer ring and an outer burner cap body inner ring; an upper row of through flame holes and a lower row of through flame holes are formed in the outer burnercap body outer ring; the upper row of through flame holes are smaller than the lower row of through flame holes; the upper and lower rows of through flame holes are discontinuously distributed on theouter burner cap, thereby ensuring that stove stand feet can be avoided from flame; flame propagation grooves are formed in the positions, where the upper and lower rows of through flame holes are discontinuously distributed, of the outer burner cap body outer ring, and communicate with main burning through flame holes, namely the lower row of through flame holes; the flame leading plate is arranged on the outer burner cap body; and ignition holes are formed in the positions, corresponding to the flame leading plate, of the outer burner cap body inner ring. The outer burner cap has the beneficial effects that the upper row of through flame holes are smaller than the lower row of through flame holes, so that main flame from the lower row of through flame holes can get in sufficient contactwith the outside air, and the stability of the whole flame can be ensured through flame stabilizing holes, namely the upper row of through flame holes; furthermore, all the through flame holes are disconnected at certain angles, so that the service life of a stove stand can be prolonged and the content of CO in burning products can be lowered; and the flame avoiding positions of the outer burnercap body outer ring are connected by adopting the flame propagation grooves, so that the flame propagation reliability can be ensured.

The invention discloses an integrated composite wall panel of a thermal insulation structure. The integrated composite wall panel of the thermal insulation structure comprises a thermal insulation wall panel body, a rebar truss and a plurality of connecting pieces, wherein two ends of the connecting pieces are respectively connected to the thermal insulation wall panel body and the rebar truss, and materials of the thermal insulation wall panel body adopt organic-inorganic composite materials with fire performance reaching grade A2. According to the integrated composite wall panel, through thethermal insulation wall panel body adopting the organic-inorganic composite thermal insulation materials reaching the fire performance of the grade A2, wall panel strength requirements from the integrated composite wall panel of the thermal insulation structure can be met; and at the same time, the thickness of the integrated composite wall panel of the thermal insulation structure is significantly reduced, the prefabrication process and construction process are optimized, and the effective application and promotion of composite wall body technologies are more facilitated.

The invention provides an experimental system for testing the storage tank fire performance. The experimental system comprises an experimental device and a testing device. The experimental device is used for performing a storage tank fire combustion experiment, and the testing device is used for testing tank fire combustion performance parameters. The experimental system can rapidly perform fire combustion experiments of storage tanks which are of various sizes and contain various types of fuel, various specified parameters can be continuously collected in real time, and the basis is provided for profound and comprehensive research of the storage tank fire performance.

The invention discloses a preparation method of high-density fiberboard, which comprises the following process steps: 1) preparation and pretreatment of raw materials; 2) preparation of raw materials: placing the cooked raw materials in a heat mill for heat grinding to obtain wood fiber Refining, and then the wood fiber is refined through the fiber nozzle. During the conveying process, sizing materials, pigments, insect repellents, water repellants, mildew proof agents and antibacterial agents are added, and the dried wood fibers and flame retardants are placed in the mixer. 3) Pre-treatment of board making: the pre-pressing pressure is controlled within the range of 6~8MPa; 4) Preparation of high-density fiberboard: the pressure of the pressing board is controlled at 18~25MPa during the hot pressing process Within the range, the hot-pressing temperature is 160-190°C, and the hot-pressing time is 4-9 minutes; 5) Post-processing of semi-finished products. The high-density fiberboard prepared by the invention has the advantages of low production cost, non-toxic and harmless, and has excellent waterproof performance, mildew-proof performance, insect-proof performance, antibacterial performance and fireproof performance.

The invention discloses a novel left-handed material used for a rectangular microstrip patch antenna. According to a method, dual-opening triangular resonant ring metal patterns are etched on one side of a dielectric substrate by adopting a circuit board, so that each of a dielectric constant and magnetic permeability is a negative value. An S parameter diagram of the structure is analyzed, so that the dual-negative structure of the novel left-handed material really exists. The antenna comprises a radiation element, a left-handed material layer, a dielectric layer and a reference ground, wherein the left-handed material layer is simple in structure and convenient to use. The conventional rectangular microstrip patch antenna has the shortcomings of narrow working band, low gain, low end-fire performance, low power capacity and the like. The advantages of the novel left-handed material are taken into account, and the novel left-handed material is loaded to the rectangular microstrip patch antenna, so that the related characteristics of the conventional antenna system can be improved to a certain extent.

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.

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.

The present invention provides a linkage building block, a building block wall and a construction method of the building block wall. The building block wall comprises the linkage building blocks, special mortar for the building blocks, grout concrete and load-bearing bars. The adjacent linkage building blocks are bonded by the special mortar for the linkage building blocks, the grout concrete is grouted into cavities of the linkage building blocks at specific locations in the vertical direction, and the load-bearing bars are arranged in the cavities of the linkage building blocks at the specific locations in the vertical direction in a penetrating way. The wall takes the shape of a shear wall through pouring the grout concrete into holes, therefore a template is not needed, the cost is low, and the fire performance is better.