36results about How to "Controlled combustion" patented technology

The present invention provides a premixed charge compression ignition engine and control system (10), which can effectively trigger combustion and maintain stable combustion by means of compression ignition, while achieving extremely low nitrogen oxide emissions, good overall efficiency and Acceptable combustion noise and cylinder pressure. The engine and control system (10) of the present invention can effectively control the combustion process by controlling certain control variables of temperature control, pressure control, mixture self-ignitability control and equivalence ratio control, that is, the time of combustion initiation, the combustion rate , duration of combustion and / or completeness of combustion. The combustion control system (10) provides active feedback control of combustion and includes a sensor for detecting engine operating conditions representative of a combustion process, such as ignition of combustion, and generating a corresponding engine operating condition signal (18) , such as the pressure sensor (16).

The invention relates to a method for producing flame-proof assembled finishing material, which adds one flame-proof treatment in the former production, to make said sheet to be immerged by said flame retardant, while the flame retardant can immerge into inner space, to esterify, etherify and graft copolymerize the hydroxyl group of wood, to separate air, fire resource, fuel or dilute the fuel gas, to change the thermal crack process and control the burning of wood. In said invention, the other physical and chemical properties of wood are changed little.

The invention enables determining one or more proportional particle group shares in flue gas of a recovery boiler (110) based on optical information gained from a flue gas sample. A processor (202) is used to read (301) a digital frame comprising the area under consideration, which represents at least a part of the surface of a sampler (120) kept in the flue gas flow of a recovery boiler. Particle group areas matching a colour characteristic of the particle group comprised in the flue gas is determined (302) from the area under consideration. The joint area of the identified particle group areas is determined (304), and the share of the joint area from the total area is determined (305) as the proportional particle group share of the particle group.

A gas sensor including a gas sensor element including: a reference electrode; a solid electrolyte layer having oxygen ion conductivity; a detection electrode; and an electrode protection layer covering the detection electrode. The electrode protective layer is a porous body carrying a metal functioning as a catalyst, and includes: a detection electrode side portion having a charge ratio of the metal functioning as a catalyst of more than 0% and not more than 0.005% by weight; and the surface A side portion provided closer to the outer surface of the electrode protection layer than the detection electrode side portion, the surface side portion having a charge ratio of the metal functioning as a catalyst of 0.01% by weight or more.

A W type of flame boiler enabling to prevent water-cooled wall of wing walls from slagging scarification is prepared for setting four wall-wind fans separately on external sides of four wing walls andarranging ventilation gap on each of four wing walls.

The invention discloses a lamp wick with a flame size adjusting function. The lamp wick comprises a wick and a sleeve. Two opposite ends of the wick are respectively defined as a first end and a second end, the wick comprises at least one transmission channel and a plurality of grids, the first end is communicated with the second end via the transmission channels, flame can be ignited at the first end of the wick, and the tip of the first end of the wick is separated from the tip of the second end of the wick by a first length; the sleeve is hollow, is sleeved on the wick and has a second length axially, and the second length is smaller than the first length. The lamp wick has the advantages that sleeve can be repositioned relative to the wick, so that an exposed degree of the first end of the wick can be further controlled, and the size of the flame can be adjusted.

A method of real-time estimation of the intensity of the knocking of an internal combustion engine utilizing a vibratory sensor is disclosed which is useful for control of internal combustion. A vibratory signal representing vibrations of the engine is continuously acquired as a function of the crankshaft angle. A model of a wave equation propagating through the cylinder-head is constructed. The coefficients of a Fourier decomposition of the vibratory signal are determined in real time by inverting the dynamics of the wave equation model using an estimator. The energy contained in the signal is computed by summing the squares of the coefficients of the Fourier decomposition. A parameter correlated with the intensity of knocking equal to the square root of the maximum of the energy is determined in real time.

The invention discloses a chemical waste gas boiler furnace for combustion. The boiler furnace comprises a chimney, an inclined louver, a crossed air distributing pipe, a combustion device, a drain device, a combustion chamber, a fume passage, a first fan and a second fan, wherein the boiler furnace body forms an N shape, the combustion device is positioned at the lower end part of one end of the N-shaped boiler furnace body, the combustion chamber is arranged above one end of the N-shaped boiler furnace body, the upper end of the combustion chamber is connected with the fume passage, the middle part of the boiler combustion chamber is provided with the crossed air distributing pipe, the crossed air distributing pipe is uniformly provided with a plurality of air distributing holes from top to bottom, the end part of the crossed air distributing pipe is respectively connected with the first fan and the second fan, the part of the fume passage on a second curved passage of the N-shaped boiler furnace body, corresponding to the combustion chamber, is provided with the inclined louver, the outer side of the bottom of the lower part of the inclined louver is provided with the drain device, and the upper end part of the other end of the N-shaped boiler furnace body is provided with the chimney. The boiler furnace has the advantage that the boiler body structure is vertically arranged, so the occurrence of aggregating and detonation of residual hydrogen and backfire is avoided, and the safe and reliable running of the device is ensured.

The invention relates to a novel self-adaptation gas fuel control system. The system can automatically recognize and control internal combustion engine vehicles, ships or power generator sets in various gas fuel types. The novel self-adaptation gas fuel control system achieves self-adaptation adjustment and control over corresponding gas fuel. The control system comprises a gas fuel box, a gas inlet pipeline, an electromagnetic valve, a first pressure sensor, a second pressure sensor, a pressure reducing valve, an internal combustion engine and an electronic control unit. The control system has the effects that a combustible gas concentration sensor and the single electronic control unit or an ECU are used for controlling gas fuel with any component; automatic changeover control over various kinds of gas fuel is achieved; hardware structures are simple, cost is low, and use and maintenance are convenient; meanwhile, when no sensor exists or starts, a user can select the type and the proportion of preset fuel or input fuel, the ECU calls a matched excess air coefficient and injection pulse width, and combustion is controlled.

The invention relates to a slag sensible heat recycling system for an air-cooling dry slag machine. A horizontal segment, close to one side of a lifting segment, of the dry slag machine is provided with a shutter rotation opening-closing mechanism air inlet; the side, away from the lifting segment, of the air inlet is provided with an isolating device; the position, on the inner side of the top ofan outer shell, close to a joint of the dry slag machine and a boiler is provided with a temperature sensor; and the outer wall of the outer shell is provided with a controller, and the top of the dry-slag-machine lifting segment in the air-cooling dry slag machine is connected with a second air preheater and a first air preheater correspondingly through air pipes. The slag sensible heat recycling system for the air-cooling dry slag machine is reasonable in design, the influence of cold air on the operation of the boiler can be effectively avoided, the slag cooling efficiency is improved, meanwhile the slag sensible heat is used sufficiently, the low temperature corrosion environment of the air preheaters is improved, the tail gas temperature of the boiler is raised, at the same time theheat can be recycled by a low temperature economizer to raise the feed-water temperature, the total air volume entering the boiler is controlled, the low nitrogen combustion and low oxygen combustionare achieved, the discharging of NOX from boiler combustion is lowered, the amount of ammonia spraying in SCR area is reduced, and the efficiency of the boiler is improved.