1124 results about "Ignition point" patented technology

There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

The invention discloses a large high-rise building indoor fire urgent evacuation indication escape method and system, and belongs to the field of high-rise building fire safety. The large high-rise building indoor fire urgent evacuation indication escape method comprises the following steps: step 1, a fire source is located; step 2, a dynamic module of fire spread is set up; step 3, according to the dynamic module of fire spread in combination with the structural information of a building, the spatial position of an ignition point and the spatial position of fire-fighting equipment in a large high-rise building are determined, predictions are made over fire spread paths, and evacuation escape routes are planned; step 4, according to the designed escape routes, site equipment is controlled in a selective mode for assisting people in evacuation. According to the large high-rise building indoor fire urgent evacuation indication escape method and system, the fire control escape routes are made based on specific fire behavior, so that evacuation time is shortened; the existing problems that when a fire breaks out, a fire control evacuation escape way is crowded , low in efficiency and disorderly and stampedes easily occur are solved fundamentally; the practical significance of improving the safe evacuation performance of the large high-rise building and reducing the property loss and casualties caused by the fire in the large high-rise building is quite high.

An ignition system includes a housing defining an interior and an exhaust outlet. The housing is configured and adapted to be mounted to a combustor to issue flame from the exhaust outlet into the combustor for ignition and flame stabilization within the combustor. A fuel injector is mounted to the housing with an outlet of the fuel injector directed to issue a spray of fuel into the interior of the housing. An igniter is mounted to the housing with an ignition point of the igniter proximate the outlet of the fuel injector for ignition within the interior of the housing.

The invention relates to a garbage burning fly ash sintering harm-eliminating resource-utilization treatment technology. According to the invention, garbage burning fly ash is mixed with premixed coal and auxiliary materials; the mixture is granulated and shaped; and the material is dried and is sintered in a rotary kiln. During the sintering process, when the temperature is increased and a coal ignition point is reached, the premixed coal is spontaneously combusted. Therefore, external coal dose can be reduced. Initial combustion of the premixed coal can provide a reductive atmosphere, such that dechlorination and detoxification of dioxin in fly ash can be benefited. Large amount of gas is produced by subsequent combustion, such that dust pores and holes are produced on inner and outer parts of the sintered body, and heavy metal volatilization can be promoted, and fly ash sintered body with low heavy metal content and leaching amount can be obtained. The sintered body has no potential harm to the environment, such that fly ash harm-eliminating and resource-utilization are sufficiently realized. During the processing process, smoke and secondary fly ash production amounts are low, and heavy metal and acidic component contents are high. In deacidification and heavy metal stabilization processes, agent utilization rate is improved. Compared with a traditional original fly ash curing/stabilizing process, a landfill amount can be reduced by 80-90%, such that pressure caused by serious landfill space shortage can be effectively relieved.

The invention relates to a preparation method for a coal combustion improver. After common coal is added with coal additives for combustion, the effect of energy saving and emission reduction is obvious and effective. The preparation method comprises the following steps that: 1. high-stability sodium chlorate and potassium chloride react with each other to produce potassium chlorate when water is added and the sodium chlorate and the potassium chloride are dissolved; 2. leavening agent sodium acetate is introduced to conduct base exchange with humate in coal, low ignition point humate is produced and the ignition performance of the coal is reduced; and 3. ferric oxide required by the formula is compound insoluble in water. Thereby, ferric chloride and calcium oxide are used to react with each other to produce ferric oxide when water is added and the ferric chloride and the calcium oxide are dissolved. Other products in the market do not at all have the preparation and application characteristics of the three compounds.

The present invention relates to a fire detector and a detection positioning method. The fire detector of the present invention comprises a real-time monitoring sensor, a horizontal positioning sensor and a vertical positioning sensor. When the real-time monitoring sensor monitors a fire signal, the horizontal positioning sensor scans at the horizontal direction and stops scanning when detecting the fire signal; then the vertical positioning sensor scans at the vertical direction and stops scanning when detecting the fire signal, so as to finish positioning an ignition point. The fire detector and the detection positioning method of the present invention utilizes an ultraviolet flame sensor to detect the occurrence of fire, can avoid the interference of sunlight, lamplight and other background light, reduce false alarm rate, and improve detection accuracy degree. The fire detector can accurately position the ignition point through the horizontal positioning sensor and the vertical positioning sensor, so as to provide accurate data for subsequent fire extinguishment and realize that extinguishing agent is accurately sprayed at the ignition point, which can prevent extinguishing agent from damaging unlighted property at the same time when saving extinguishing agent.

A power generating system and method operating at high pressure and utilizing a working fluid consisting of a mixture of compressed non-flammable air components, fuel combustion products and steam. The working fluid is substantially free of CO and NO.sub.x. Fuel and compressed air at an elevated temperature and at a constant pressure are delivered to a combustion chamber, the amount of air being chosen so that at least about 90% of the oxygen in the air is consumed during combustion. The quantity of air and fuel supplied to the combustion chamber may be varied provided a constant fuel to air ratio is maintained. Superheated water is delivered under pressure to the combustion chamber, and is converted substantially instantaneously to steam. The quantity of water delivered is controlled such that the latent heat of vaporization of the water maintains the temperature of the working fluid at a desired level. Heat may be transferred from the working fluid exiting the work engine to the water to heat the water to the desired temperature for delivery to the combustion chamber. The quantity, temperature and pressure of the air, fuel and water introduced in to the combustion chamber are independently controllable. A zoned burner may be employed in which a portion of the compressed air may be mixed with the fuel in a first zone prior to ignition, with the remaining compressed air being added at one or more locations downstream of the point of ignition.

The invention relates to a procedure of connecting a polyphased asynchronous generator on a polyphased alternating voltage network. The connecting is carried out by means of an adjustable, electronic connecting based on thyristors or similar variable (adjustable) connecting items, the connecting degree of which is varied during a controlled connecting course, which is controlled in consideration of the wish of a "soft" connecting on the network and a limitation of the maximum amperage during the connecting course. During the whole connecting course a continuous determination of the generator phase angle phi is carried out, and on basis of this determination a continuous adjustment of thyristors-the aperture angle is carried out, thus the aimed, successive load connection of the generator on the network (soft-connecting) is obtained. Furthermore the procedure include a new method to determine the generator phase angle phi by registering the time of zero circulation on the phase voltage, and at the same time detection of the respective thyristor voltage zero circulation point at a measuring method based on measuring of the thyristor voltage. The novelty of the invention consists in adjusting the ignition point of the thyristors successively to the phase angle phi, thus the connecting degree resulted to the thyristors is increased in a controlled speed regardless of the variations registered in the phase angle during the connecting course, i.e. in the principle the thyristor aperture angle is reduced, when phi increases and so on.

Disclose is a burner for a gas turbine combustor that uses a central bluff body flame holder and a quarl to shape the recirculation zone in order to stabilize the combustion process. The burner includes, among other elements, a cylindrical main body and a flame holder. The flame holder is disposed within a fuel-air mixing chamber and includes a base portion and an elongated bluff body. The base portion engages with the main body of the burner in a supporting manner and the elongated bluff body extends in an axially downstream direction from the base portion through the internal mixing chamber so as to position a combustion ignition point downstream of the internal mixing chamber. In a representative embodiment, the burner further includes a quarl device disposed adjacent to the downstream end portion of the burner main body. The quarl device defines an interior recirculation chamber and a burner exit. The interior recirculation chamber is adapted for receiving precombustion gases from the mixing chamber and for recirculating a portion of the combustion product gases in an upstream direction so as to aid in stabilizing combustion.

A method for detecting and locating fire based on double-waveband image includes: performing background modeling using a way of weighted average, and greatly reducing an amount of calculation while ensuring real time updating of a scene; performing a flame suspected region detection based on a method of frame difference, to possibly detect more flame suspected regions; excluding unqualified suspected regions according to sensory features, airspace variability feature, time domain continuity feature, position derivable feature and distribution isolation feature of the flame, to reduce phenomenon of false reports; using a method of margin marking to map the flame region detected on an infrared image to a color image for the convenience of the monitoring staff to observe; and obtaining horizontal and vertical distances of an actual ignition point with respect to a certain reference object on the ground according to a coordinate of the flame in the image to achieve an aim of locating a fire. The advantages of the present invention are: being capable of in time and accurately determining the flame feature of the monitored occasion, providing a fire alarm, transmitting a most visual video image and targeting the fire scene.

A method with which the load current and thus the load moment of an asynchronous motor that is controlled via a phase-controlled two-phase thyristor power controller, can be easily influenced so as to allow a smooth starting operation. According to a first embodiment, the ignition point is determined in the controlled phase in order to adapt the flow angles of the subsequent current half waves. According to a second embodiment, the ignition point of the subsequent current half waves is brought forward in both controlled phases.

The invention discloses a coal powder pressurizing oxygen-enriched combustion settling furnace experimental device. A gas inlet system comprises an oxygen supplying unit and a carbon dioxide supplying unit; a settling furnace comprises a pressure container, a reaction pipe and a slag storage tank which are connected sequentially from the top down, wherein a coal powder feeding machine is fixedly arranged inside the pressure container, and is communicated with the reaction pipe through a blanking pipe, and a heating furnace is arranged on the outer wall of the reaction pipe in a sleeving way; a flue gas analysis system comprises a cooling device, a flue gas flowmeter and a flue gas analysis instrument which are connected sequentially through a pipeline; the gas inlet system is communicated with the blanking pipe through a gas inlet pipeline; and the slag storage tank is communicated with the cooling device through a gas outlet pipeline. According to the invention, continuous feeding of coal powder under the conditions of pressurizing and oxygen enrichment is realized, combustion characteristic parameters of ignition point, combustion temperature, burnout rate of carbon and the like of coal powder under the conditions of different pressures and different O2/CO2 proportions can be accurately obtained, and meanwhile, flue gas components of coal powder combustion can be analyzed, so as to obtain the generation characteristics of pollutants under the conditions of pressurizing and oxygen enrichment.

The invention provides a high-permeability anion modified emulsified asphalt and a preparation method thereof. The high-permeability anion modified emulsified asphalt comprises asphalt, diluents, emulsifiers, penetrants, water, stabilizers and anion SBR (styrene-butadiene rubber) latex. The preparation method includes controlling proportioning and processing temperature of the materials and then emulsifying through a latex mill so as to obtain finished products. The prepared emulsified asphalt has good stability and strong permeability, and can meet the specification requirement of permeating a base by the depth of 5-10mm. The diluents are mixtures of industrial byproducts such as crude residual oil, white oil, processing light oil and the like which are distilled and extracted from crude oil or petroleum, and are high in ignition point, low in volatility and low in price, and therefore, the prepared high-permeability anion modified emulsified asphalt is environment-friendly and low-cost. In addition, owning to the compounded emulsifiers, emulsion performance is improved; and owning to the penetrants which are selected through relative permeability test, capillary permeability of the emulsified asphalt is improved.

An ashing process in which an etching mask is removed through ashing by supplying hydrogen radicals toward a wafer W being heated to a predetermined temperature and a restoration process in which the film quality of a low dielectric constant insulating film having been damaged during an etching process is restored while, at the same time, rendering the low dielectric constant insulating film exposed at a recessed portion into a hydrophobic state by supplying a gas containing a β-diketone compound with an ignition point equal to or higher than 300° C. toward the wafer W having undergone the ashing process, are executed.

The invention relates to an oily sludge renewable coal and a production technology thereof for an oil field and a refinery. The renewable coal composition is composed of 10 percent to 30 percent of oily sludge, 60 percent to 80 percent of coal, 3 percent to 6 percent of sulfur fixing matter and 1 percent to 5 percent of preservative according to the weight percentage. The production technology comprises the following steps: sludge thickening to flocculation reaction to sludge dehydration to stirring and mixing to extrusion forming and drying by a tunnel kiln. The production technology further comprises the disposal technology of wastewater containing oily sludge: wastewater to an oil separating tank to an air flotation tank to an anaerobic tank to an aerobic tank to a secondary sedimentation tank to a transition tank to an electricity charge payment device to a coagulation and air flotation tank to a clean water tank. The wastewater can achieve the national first level discharge standard after the treatment, and the outlet water is reused for green irrigation or car washing or toilet flushing. The oily sludge renewable coal has the advantages of high calorific value, low ignition point and low production cost, thereby truly realizing the purposes of reduction, harmlessness and resource utilization of the oily sludge.

The invention belongs to the technical field of fuel processing and petroleum chemical engineering, and relates to a novel nano ferrite adsorption desulfurization catalyst MeFe2O4, wherein Me comprises but not the same with Mg, Zn, Ni, Co and Cu. The preparation method comprises the following steps: dissolving transition metal nitrate, Fe-containing nitrate and fuels in water, heating the obtained solution in a microwave furnace rapidly, decomposing so as to generate a great quantity of combustible gases and emit a great amount of heat, and combusting reactants reaching the spontaneous ignition point; and reacting so as to obtain a solid material, namely the novel nano ferrite adsorption desulfurization catalyst. The novel nano ferrite adsorption desulfurization catalyst is relatively high in desulfurization selectivity, can prevent the loss of octane value and cetane value due to olefins hydrogenation while deeply removing sulfocompound in fuel oil, and has relatively good industrial application prospect.

The invention provides a method for preparing biomass moulded coal by using biomass and inferior smokeless pulverized coal as raw materials. The biomass moulded coal is prepared by uniformly mixing the biomass, the inferior smokeless pulverized coal and additives (a sulfur fixation agent, a biomass binder, an oxidant and a waterproofing agent), and performing low-pressure compression moulding by a wet method, wherein the sulfur fixation agent is calcined lime CaO; the biomass binder is light yellow dope prepared by treating bagasse by using 1 to 2 percent sodium hydroxide solution; the oxidant is potassium permanganate; and the waterproofing agent is tar or a binder. The biomass moulded coal comprises following raw materials in part by mass: 40 to 65 parts of inferior smokeless pulverized coal, 25 to 55 parts of biomass and 5 to 10 parts of additive. The biomass moulded coal has the advantages of low cost, low ignition point, high burn-off rate and integrative desulfurization and water proofing performance, and has great significance of energy conservation and environmental protection.

The invention discloses a fast forest fire detecting system by laser ranging positioning, composed of a laser ranging positioning unit and a command information platform. The invention mainly discloses a laser ranging positioning unit integrating a laser ranging module, a digital compass, a dip circle and a GPS/Beidou double-module positioning communication module, and adopts short message communicating function of a Beidou first-generation satellite to send fire condition information. Advantages are as follows: compared with the traditional mapping tools, the laser ranging positioning unit more quickly measure three-dimensional coordinate of an ignition point distantly and saves precious time at the beginning of finding forest fire; the method of positioning by Beidou double-module positioning has higher positioning precision; Beidou first-generation communication link is safer, more reliable and stable, compared with wired communication network or other wireless communication ways; the command information platform monitoring system base on 3D-GIS database can accurately and directly display specific position of the fire and provide effective instruction for organizing to extinguish fire.