3085 results about "Burn out" patented technology

A combustion control system allows the dramatic reduction of NOx emission levels from industrial combustion processes without having recourse to expensive flue gas clean up methods. The system combines the technique of oscillating combustion with an adapted system for post combustion burn out of the excess of CO resulting from the low-NOx combustion zone. A process for fuel combustion includes generating an oscillating combustion zone by oscillating at least one of the fuel flow and the oxidant flow to achieve a reduced nitrogen oxide emission, selecting oscillating parameters and furnace operating parameters to maximize nitrogen oxide reduction efficiency to the detriment of carbon monoxide production, and combusting carbon monoxide downstream of the oscillating combustion zone by injecting a post combustion oxidant.

To avoid burning out a capacitor in a synchronous rectification type DC-to-DC converter due to overvoltages, the synchronous rectification type DC-to-DC converter includes a storage unit storing therein power derived from a power supply, switching elements connecting and disconnecting respective signal paths from power and ground, and a control unit controlling the connecting/disconnecting operations of the switching elements to maintain a voltage output from the storage unit at a predetermined value. The DC/DC converter also includes an overvoltage detecting unit monitoring a voltage derived from the power supply to thereby output an alarm signal when the voltage derived from the power supply exceeds a preselected voltage value, a shortcircuiting unit influencing the connecting conditions of the switching elements when the alarm signal from the overvoltage detecting unit is input therein, whereby the voltage derived from the power supply is shortcircuited, and an interrupting unit interrupting one of the signal paths by the power shortcircuited by the shortcircuiting unit.

The invention provides a process, a system and equipment for converting household garbage without support combustion of the prior fuels, which relates to a process and equipment for processing garbage. The process is characterized in that the household garbage is sent into a gasification furnace or an incinerator after separating, dehydrating by rolling compaction and air-drying treatment; garbage fuel is converted in the furnace by a mode of gasification or incineration, and is subjected to baking, pyrogenation, gasification and carbon residue burn-out in the furnace; the converted synthesis gas is used for cleaning energy; waste heat of incineration is absorbed by heat-exchange equipment for reclamation; garbage rolling liquid is sent into a digesting machine for anaerobic fermentation so as to produce biogas, the biogas is used as auxiliary fuel of the incinerator, and the digested residue and residual liquid are used for fertilizing crops; and inorganic substances separated from the garbage are used as raw materials to manufacture bricks, and clinker discharged from the incinerator or the gasification furnace is used for producing cement or fertilizer. The process, the system and the equipment comprehensively utilize the garbage so as to achieve complete dissolving treatment, and the equipment has a simple structure and low investment cost, and is easy to popularize..

The invention discloses a cooking method. The cooking method is applicable to a cooking tool with a cooking cavity, the cooking cavity is heated at first power, and after heating, if it is judged thatthe heating condition is not satisfactory, heating is continued at second power which is lower than the first power; otherwise, heating is continued at the first power. By adopting the method, when an inner pot is in bad contact with a heating device, the power can be adjusted for heating, and the situation that since the temperature of the bottom of a pot is raised too fast, a thermal fuse at the bottom of the pot is burnt out can be avoided.

Certain example embodiments relate to seals for glass articles. Certain example embodiments relate to a composition used for sealing an insulted glass unit. In certain example embodiments the composition includes vanadium oxide, barium oxide, zinc oxide, and at least one additional additive. For instance, another additive that is a different metal oxide or different metal chloride may be provided. In certain example embodiments, a composition may be combined with a binder solution that substantially or completely burns out by the time the composition is melted. In certain example embodiments, a CTE filler is included with a frit material. In certain example embodiments, a vacuum insulated glass unit includes first and second glass substrates that are sealed together with a seal that includes the above-described composition.

Apparatus, systems and methods of 50 CFM exhaust and ventilation fans for bathrooms with grill covers having removable light lens covers, and flaps/ears that allow the housings to mount directly to joists and/or other structural members inside of a ceiling or inside of a wall. The housing can include a mounting plate having a motor with attached impeller thereon, wherein the mounting plate with motor and attached impeller and electrical connectors can be removed as a single unit from the housing for accessing and inspecting interior wire connections during inspection and for ease in replacing parts such as burned out motors overtime.

Described is a Schottky diode using semi-conducting single-walled nanotubes (s-SWNTs) with titanium Schottky and platinum Ohmic contacts for high-frequency applications. The diodes are fabricated using angled evaporation of dissimilar metal contacts over an s-SWNT. The devices demonstrate rectifying behavior with large reverse-bias breakdown voltages of greater than −15 V. In order to decrease the series resistance, multiple SWNTs are grown in parallel in a single device, and the metallic tubes are burnt-out selectively. At low biases, these diodes showed ideality factors in the range of 1.5 to 1.9. Modeling of these diodes as direct detectors at room temperature at 2.5 terahertz (THz) frequency indicates noise equivalent powers (NEP) comparable to that of the state-of-the-art gallium arsenide sold-state Schottky diodes, in the range of 10-13 W/square-root (√) Hz.

The invention discloses a combustion feedforward and feedback composite optimization controlling method for a pulverized coal fired boiler. The method is used for realizing dynamic accurate proportioning of wind and coal under a full working condition and in the full combustion process. According to the technical scheme, the method comprises the following steps of: determining feedforward signals according to combustion adjusting experiment data or operation personnel experience, determining feedback signals according to the thermodynamic properties and laws of the boiler, and automatically and accurately adjusting the coal quantity proportion of each burner, the primary air quantity proportion of each coal mill, the outlet temperature of each coal mill and the secondary air quantity and burning-out air quantity proportion of each burner under different working conditions to keep the burning efficiency and the NOX discharge of the boiler in an optimal state. By the method, the advantage of coexistence of a plurality of independent adjusting means of the large pulverized coal fired boiler and the advantages of high dynamic response speed of feedforward control and high static precision of feedback correction control are fully exerted, the pulverized coal fired boiler is close to the optimal state under various working conditions, the burning efficiency of the boiler is improved, and the discharge of NOX is reduced.

The invention discloses an infrared humidification device and a control method. The device comprises a plurality of infrared light sources, a lampshade, a water storage structure, a water inlet structure, a water level switch and a controller. The water storage structure comprises a water storage tank, an overflow valve and a drainage pipe. The water inlet structure comprises a water inlet pipe, a water inlet electromagnetic valve and a water injection pipe. On-off of a power supply circuit of the multiple infrared light sources is controlled by the controller, a current transformer is arranged in the power supply circuit of the infrared light sources and used for collecting current values, and the current values are transmitted to the controller. According to the infrared humidification device and the control method, radiant energy of the infrared light sources is adopted for heating and evaporating water, the requirement for water quality is not high, and the application range is wide; the water storage tank is automatically cleaned, the daily maintenance workload is reduced, and the maintenance cost is reduced; and the current values are collected by the current transformer and transmitted to the controller, the controller controls on-off of the power supply circuit of the infrared light sources according to the current values, and the situation that the infrared light sources are burnt out due to abnormal current is avoided, so that the safety and stability of the whole device are improved.

The invention discloses a method for combusting a fuel reburning low-nitrogen oxide and belongs to a clean combustion method for a coal-fired boiler. Secondary medium air is used as a powder conveying medium of a combustor on the upper layer of the main combustion area of the boiler, coal powder used as a reburning fuel is conveyed into the boiler, the secondary medium air is used as distributed air of the combustor, the secondary air of the combustor on the upper layer is reduced correspondingly, the distributed air in the reburning area is reduced correspondingly, low excess air combustion is formed, the distributed air in a hearth is not enough, and finally over fire air (OFA) complements the required air; and the mixed medium of air and fuel gas is used as the conveying medium of the coal powder of the combustor of the upper layer, and the coal powder with the conventional fineness is conveyed into the boiler from the combustor on the upper layer by using a coal mill and a powder making system and is re-burnt and denitrated, and is burnt out by OFA. The problem that the reburning fuel and the fuel gas are not mixed uniformly, the reduction time is short, and the denitration efficiency is low is solved, the original design working conditions of maximum continuous evaporation capacity of the boiler and the like are not influenced, transformation is easy to realize, and the running cost is low.

The invention relates to a processing method of warp knitting plush fabrics with burning out printing terylens. The processing method comprises the following steps of: materials selection: selecting DTY (Draw Textured Yarn) terylen low stretch yarns from 75 D to 150 D as felted yarn materials and selecting FDY (Fully Drawn Yarn) semi-dull polyester yarns from 50 D to 100 D as ground yarn materials, wherein the DTY terylen low stretch yarns account for 60-80% of the fabrics by weight percent, and the FDY semi-dull polyester yarns account for 20-40% of the fabrics by weight percent; weaving or slitting after weaving; thermally forming or pretreating after thermally forming; brushing and cropping the front surface or brushing and cropping the back surface, cropping the back surface and pilling; post-forming; burning out printing: carrying out burning out printing on grey fabrics subjected to the post-forming by using a burning out printing alkali slurry; steaming; post-treating; and forming a finished product. By the technical scheme, the fabrics can achieve the advantages of strong third dimension of patterns, ideal sculptured pattern effects and favorable shininess, residues does not generate in the weaving process, which is beneficial to protecting warp knitting machines.

The invention discloses a hand-operated power supply plugging connecting device. The hand-operated power supply plugging connecting device comprises a power supply body and a plug connected with the power supply body in a cooperated way. The power supply body comprises two plugging grooves, which are in a left-right symmetric arrangement, and have openings facing forwards; and a power supply groove, which is disposed between the two plugging grooves, and has an opening facing forward. The rear end wall of the power supply groove is provided with a power supply contact connected with a power supply. The rear ends of the two plugging grooves are communicated with a sliding groove, A sliding block capable of sliding forwards and backwards is disposed in the sliding groove. The hand-operated power supply plugging connecting device is advantageous in that a structure is simple, production costs are low, power supply is safe and stable, and connecting and disconnecting operation steps are simple, and therefore electric shock accidents in a daily life are effectively reduced, life safety of users is guaranteed, occurrence of electrical equipment power-off accidents caused by wrong kicking and wrong colliding is prevented, the burn-out rate of the electrical equipment is reduced, and popularization and application are facilitated.

The present invention provides a method of making a decorated multilayer glass structure using a single firing step that includes that use of a crystallizing glass enamel composition that contains ingredients to ensure the complete burnout of the organic portion of the composition upon firing and bending of a mated pair of glass sheets. A benefit of the composition is that when applied to one sheet of a mated pair of glass sheets, it burns out completely during firing and bending of the pair. The presence of high levels of oxidizers in the composition ensures a supply of oxygen to enable combustion of the organic vehicle while firing the glass sheets and prior to the sintering of the enamel composition to only one glass sheet in a mated pair of decorated or colored glass sheets.

The invention discloses a regeneration method of a catalyst for dehydrogenation of low-carbon alkanes, which comprises the following steps: firstly regenerating the catalyst in the air atmosphere at a lower temperature, burning out carbon deposits on the surface of the catalyst and most of carbon deposits in holes, and then preferably regenerating the catalyst further in a vapor-air mixed atmosphere at a temperature of 400-500 DEG C, so that the carbon deposits on the surface of the catalyst and in the holes can be completely removed, and simultaneously, the acid value and the acid distribution of the catalyst can be modulated so as to restore the crystal form and crystal phase composition of the deactivated catalyst to the original state of the fresh catalyst. Thus, the catalyst can be regenerated, and simultaneously, the physicochemical properties and the dehydrogenation activity of the regenerated catalyst are similar to those of the fresh catalyst, thereby prolonging the service cycle and life of the catalyst. The method has the advantages of moderate regeneration conditions and short regeneration time, and further lowers the production cost of the catalyst.

The laser beam produced by titanium jewel femto second laser is split into two beams and the two laser beams are focused by lenses to realize temporal and spatial coherent superposing before acting on metal film on quartz, common glass or silicon substrate. The laser pulse width, pulse frequency and single pulse energy are so controlled that the laser beam can burn out metal film and produce no damage of the substrate. The coherent laser beam is fixed and the sample on 3D platform is computer-controlled to move to prepare periodical microstructure of metal film.

A method of producing a ceramic filter element suitable for use in an exhaust filter for an internal combustion engine, during which a combustible, non-ceramic support web is impregnated with a ceramic slip and formed into a desired geometric shape in either order, and then the impregnated and formed web is fired until the support web is burned out and a rigid ceramic filter body is formed.

The invention discloses a method for testing the interfacial bonding strength of a ceramic fiber-reinforced resin matrix composite material and relates to ceramic fibers. The method comprises the following steps: bonding the ceramic fibers to a hard paper frame by virtue of an instant adhesive, for straightening and solidifying the ceramic fibers; preparing an embedding mold, putting the ceramic fibers and the hard paper frame into the embedding mold, and introducing resin into the embedding mold; after the resin is solidified, cutting an embedded end together with the embedding mold so as to obtain a sample, and polishing; when the embedding depth of the sample is lower than 1mm, bonding the embedded end with a primary cut part by virtue of quick-dry resin after the polishing process; burning out two sides of the paper frame at an un-embedded end by virtue of naked flame, averagely cutting the upper end of the paper frame according to the quantity of the ceramic fibers, and bonding and reinforcing the paper frame by virtue of a hard paperboard with area equal to that of the cut paper frame; firstly fixing the embedded end at a lower clamp of a testing machine, and then fixing a reinforcing section to an upper clamp of the testing machine; carrying out a single-filament draw-out experiment; recording each withdrawal force value given by a testing machine; observing the shape of an withdrawn end, and measuring the maximal withdrawing length of the single fiber; and calculating the interfacial bonding strength between the fiber and the resin.