33results about How to "Not easy to fire" patented technology

The invention belongs to the technical field of industrial gas burner and relates to a low emission high-power staged-combustion gas burner. The staged-combustion gas burner is characterized in that a swirling machine, a flame stabilizing plate, a central canister and a middle pipe are coaxially arranged in the throat of the burner main body from outer to inner, wherein the flame stabilizing plate is provided with a gas gun which is axially fixed and has same uniformly distributed radial lines. The gas collocation method comprises the following steps: (1) collocating no gas in a direct air channel, in which is low-speed central cooling air, (2) mixing the high-speed swirling air entered from a swirling air channel with the gas jetted from a small gas hole B on the gas gun along the radialdirection till reaching to the semi-premixed state before emerging from the throat of the gas burner, and (3) face-to-face jetting the gas from a big gas hole on the top of the gas gun, the high-speed swirling air and the high-speed peripheral axial air flow so as to form non-premixing diffusion combustion. Because of the air, the staged gas branch supply, the premixing combustion and the non-premixing diffusion combustion, the combustion is uniform and NOx is prevented from being generated. The discharge amount of NOx of the gas burner is 70% lower than that of the common burner in the priorart.

The invention relates to the technical field of wires and cables, in particular to a fireproof and damp-proof subway cable. The fireproof and damp-proof subway cable comprises a plurality of cable cores. An insulating layer, a shielding layer, a protective layer and a fireproof layer are sequentially arranged on the outer side of each cable core, the cable core is arranged in a fire insulation bracket, the fire insulation bracket is fixed on a water blocking layer, a damp-proof layer, a flame-retardant layer, an elastic isolation layer and a wear-resistant layer are sequentially coated outsidethe water blocking layer, and the fire insulation bracket divides all cable cores into independent cavities respectively. In order to overcome defects, the invention provides the fireproof and damp-proof subway cable with reliable performance, problems of poor fireproof and damp-proof performance of the existing subway cable are solved, and the cable is good in strength and not easy to damage.

The embodiment of the invention discloses a gas premixed burner. The gas premixed burner has a burning direction; an impeller-shaped mixer and a burner substrate are arranged in a burner main body; the impeller-shaped mixer is arranged on the upstream of the burner substrate, so that gas and air are uniformly mixed before burning; a main burning surface is arranged on the downstream of the burner substrate; the main burning surface and the burner substrate are tightly connected in a matching manner; an auxiliary flame burning surface and the main burning surface are tightly connected in the matching manner; a main flame of the main burning surface and an auxiliary flame of the auxiliary burning surface are positioned on the same plane; as the scale of the main flame is greater than that of the auxiliary flame and the air current speed of the main burning surface is greater than that of the auxiliary flame burning surface, the auxiliary flame realizes the effect of stabilizing the main flame; a burning chamber is arranged on the downstream of the main burning surface and the effect of further stabilizing the burning is realized. According to the gas premixed burner disclosed by the invention, a metal mesh is taken as the burning surface; with larger porosity, the metal mesh has low possibilities of being blocked by tiny dust in the air, tempering and floating flame; a fan has higher efficiency.

The invention discloses a high-efficiency gas burning nozzle and relates to an improvement on the structure of the burning nozzle of a gas burner. The high-efficiency gas burning nozzle can lead gas to be burnt fully, thus improving the burning efficiency of the gas. The high-efficiency gas burning nozzle comprises a barrel-shaped body, gas pipelines and an air pipeline, wherein the gas pipelines and the air pipeline are arranged in the body; the air pipeline comprises a peripheral gas channel and a central gas channel which is coaxial to the body; single-quantity inner-circle pipeline groups are uniformly distributed on the gas pipelines around the central gas channel, and outer-circle pipeline groups which have equal quantity with the inner-circle pipeline groups are also uniformly distributed around the inner-circle pipeline groups; and gaps among the inner surface of the body, the inner-circle pipeline groups, outer-circle pipeline groups and the outer surface of the central gas channel form the peripheral gas channel. In the high-efficiency gas burning nozzle, two circles of gas pipelines are arranged and include an inner circle and an outer circle, and the air pipeline covers the gas pipelines of the inner ring and the outer ring, so that the gas is fully contacted with the air, and further the burning efficiency of the gas is improved. In the high-efficiency gas burning nozzle, the flame lifting is not easy, the diffusion of residual gas is basically avoided, the burning flame is long, the burning is strong and the toasting time is shortened by 1.5-2 hours.

The invention discloses a high-hardness biological building material which comprises 11-13 parts by weight of isoprene rubber, 9-12 parts by weight of polyisoprene rubber, 3-5 parts by weight of halogen-free intumescent flame retardant, 14-18 parts by weight of tuber straw powder, 15-20 parts by weight of highland barley straw powder, 9-13 parts by weight of broad bean straw powder, 3-6 parts by weight of wood fibers, 9-14 parts by weight of silver birch saw dust, 3-8 parts by weight of oak tree saw dust, 1-2 parts by weight of bird cherry saw dust, 3-6 parts by weight of calcium carbonate, 5-8 parts by weight of potassium dichromate, 1-2 parts by weight of titanium dioxide and 3-6 parts by weight of kieselguhr. The high-hardness biological building material is high in hardness, not easy to age, waterproof, fireproof, heat-insulating and soundproof, and applicable to light partition walls of high-rise buildings and piping insulation.

The invention discloses an environmental-protection energy-saving building material which comprises the following substances in parts by weight: 30-40 parts of a 108 solution, 20-30 parts of perlite, 1-6 parts of diatomite, 1-2 parts of hollow glass microbeads, 0.5-1.5 parts of a graphite powder, 1.5-3 parts of open-cell expanded perlite (14-120 mesh), 1.5-4 parts of hollow glass microbeads (120-200 mesh), 2-9 parts of polypropylene, 3-9 parts of bisphenol A type polycarbonate, 0.1-0.6 part of nano calcium carbonate, 3-8 parts of stearic acid, 5-8 parts of a talcum powder, 5-10 parts of carbon black, 3-9 parts of modified attapulgite clay, and 3-7 parts of azodicarbonamide. The environmental-protection energy-saving building material has the beneficial effects that the material is not easy to age, has the advantages of water resistance, fire resistance, heat insulation and sound insulation, and is suitable for thermal insulation of high-rise building lightweight partition walls and pipelines.

The invention discloses a flame-retardant energy-saving wall coating material which comprises the following components in parts by weight: 30-40 parts of 108 solution, 20-30 parts of perlite, 1-6 parts of kieselguhr, 15-30 parts of antiaging agent, 1-6 parts of compatiblizing agent, 3-9 parts of color master batch, 3-6 parts of light aggregate, 1-9 parts of coagulant, 30-40 parts of sand, 0.5-3 parts of wetting agent, 0.1-1 part of dispersant, 0.3-0.6 part of mold preventive, 0.3-0.5 part of preservative, 0.1-0.8 part of defoamer, 1-3 parts of film-forming assistant, 3-8 parts of stearic acid, 5-8 parts of talcum powder, 5-10 parts of carbon black, 3-9 parts of modified attapulgite and 3-7 parts of azobisformamide. The invention has the advantages of low aging tendency, water resistance, fire resistance, heat insulation and sound insulation, and is suitable for thermal insulation of light partition walls and pipelines of high-rise buildings.

The invention provides a single-layer porous medium combustor. The single-layer porous medium combustor comprises an air inlet pipe, a fuel gas inlet pipe, a premixing chamber and a pre-combustion chamber. The air inlet pipe is arranged on the upper portion of the premixing chamber, the fuel gas inlet pipe is arranged on the side wall of the premixing chamber, and gas introduced into the air inlet pipe and gas introduced into the fuel gas inlet pipe are mixed in the premixing chamber; the pre-mixing chamber is fixedly connected with the pre-combustion chamber, and mixed gas in the pre-mixing chamber is introduced into the pre-combustion chamber.

The invention discloses a water heater with liquid fuel as fuel. A combustion device comprises a fuel bottle containing the fuel, an ignition device, a flame-retardant pipeline, a pressurizing pump and heating pipes. The fuel bottle is connected with a pipe opening of the ignition device through the flame-retardant pipeline, a high-pressure atomizing device is arranged in the ignition device, the heating pipes are installed at the upper end of the high-pressure atomizing device, and a high-pressure pump is disposed in the fuel bottle and conveys alcohol to the high-pressure atomizing device. The high-pressure alcohol is atomized through the high-pressure atomizing device and is mixed with air to be ignited and combusted. According to the novel water heater, the fuel bottle is separated from the ignition device, the alcohol is pressured through pressurization of the fuel bottle or the pressurizing pump, and the alcohol is directly atomized, sprayed out, mixed with air and combusted; a furnace and the fuel bottle are connected through the flame-retardant pipeline, an electromagnetic valve is arranged in a spraying device, the spraying amount of the fuel is controlled according to start time, the electromagnetic valve is used for automatically controlling the supply amount of the fuel, combustion temperature can be conveniently adjusted and higher than that of a common alcohol furnace, the heat conversion rate can be increased, fuel consumption is reduced to the largest extent, fires are not likely to be caused, and fuel is non-toxic and harmless to human bodies.

The invention discloses a cloth bag type folded slender dust-removing filter cartridge. The cloth bag type folded slender dust-removing filter cartridge comprises a dust-removing filter cartridge main body, wherein one end of the dust-removing filter cartridge main body is provided with a tubesheet hole mounting seat, one end of the tubesheet hole mounting seat is provided with an upper-layer mounting retainer ring, the other end of the dust-removing filter cartridge main body is provided with a bottom-layer mounting retainer ring, a connecting support is installed between the bottom-layer mounting retainer ring and the dust-removing filter cartridge main body, and cloth bag type folds are installed on the outer side of the dust-removing filter cartridge main body. According to the cloth bag type folded slender dust-removing filter cartridge, a detachable inner filter ring, a honeycomb filter screen and a reinforced folded cloth bag are arranged, so the filter cartridge can be conveniently and better filtered, disassembled and assembled, t filtering effect is more excellent, use performance is improved, and dust can be conveniently and better filtered; and since a honeycomb structure is adopted, the filter cartridge is high in rigidity, not prone to deformation, light in weight, capable of insulating sound, heat and fire, the use performance of the filter screen is improved, and better use prospects are brought.

The invention discloses an aluminum-clad wood refractory window. The key points of the technical scheme are that it comprises a window frame, a window sash and a window glass, an aluminum alloy outer frame near the window glass, an aluminum alloy outer mullion near the window glass, and an aluminum alloy outer frame. The side of the window sash close to the window glass is formed with ribs, the side of the wood inner frame close to the window glass, the side of the wood inner mullion close to the window glass and the side of the wood inner sash are all provided with buckles, and the edge of the window glass is clamped on the side of the rib There are steel glass clips between the inner frame of the wood and the outer frame of the aluminum alloy, between the inner frame of the wood and the outer frame of the aluminum alloy, and between the inner sash of the wood and the outer sash of the aluminum alloy. One end of the glass clip is respectively fixed to the wood inner frame, the wood mullion and the wood inner sash, and the other end is pressed to the edge of the window glass, so that the window glass is not easy to shake or fall when exposed to fire.