51results about How to "Uniform flame" patented technology

The invention relates to a pulverized fuel burner and an entrained flow gasifier with several such burners for the production of synthesis gas, the burner connecting pieces are arranged for the supply of fuel dust and coolant on an outer double-walled sleeve, the one a central tube in radial distance concentrically surrounding and to the central channel an annular channel for the promotion of the combustion dust forming the burner mouth, the burner has 1 connection port for an oxidizer, and for cooling water at double central tube for the promotion of the oxidizing agent to the burner mouth. The invention provides a pulverized fuel burner for the production of synthesis gas with a higher wear resistance, low tendency to clog and optimal mixing of pulverized fuel and oxidant to be created, which is suitable for use in an entrained flow gasifier. According to the invention of the pulverized fuel supply to the burner mouth underneath an opens tangentially inlet opening for the pulverized fuel in the annular channel a distributor with several annular sections circumferentially distributed funnel-like depressions with outlet available, each outlet opening in an axially parallel straight pulverized fuel channel with approximately rectangular cross-section within the annular channel opens, wherein the cross-sectional area of the pulverized fuel channels together corresponds to the cross-sectional area of the inlet opening for the pulverized fuel, said pulverized fuel channels open into a spiral plenum front of the burner mouth defined by an upper coil, which the spaces of the annular channel between the outlet openings of the pulverized fuel channels closes, a parallel to bottom coil to swirl generation in the pulverized fuel flow and a two helices interconnecting web is limited.

The invention discloses a biomass combustion furnace with stable material air and few sparks. The biomass combustion furnace comprises a horizontal feeding device, a vertical feeding device, a hearth feeding pipe, an ash discharge device, a hearth, an upper hearth and various air ducts, wherein a hearth bottom of the hearth, an ash discharge gear of the ash discharge device, annular air duct air manifolds of the annular air ducts, and a vibrating screen are integrally in a circular table shaped annular shape, and the hearth bottom, the ash discharge gear and the annular air duct air manifolds and the vibrating screen are arranged from the bottom up sequentially. According to the biomass combustion furnace, the hearth bottom, the ash discharge gear, the annular air duct air manifolds and the vibrating screen that are integrally in a circular table shaped annular structure are assembled together, and a conical surface is formed at the hearth bottom, so that fuel can be dispersed towards the periphery easily and stably, and straight air pipes and bent air pipes can allow the air to be distributed in the same horizontal plane in the hearth more uniformly; and chip discharge grooves are uniformly formed in vane blade of a vertical screw, so that the sparks generated by combustion of chip-shaped objects are reduced, flue gas pressure of a flue gas emission channel is balanced, and the trends of the flames in the hearth are uniform.

The invention provides a micro diffuse type combustion apparatus for a micro-thermphotoelectric system. The micro diffuse type combustion apparatus for the micro-thermphotoelectric system comprises an ignition device, an external sleeve, an internal sleeve and an upper panel, wherein the internal sleeve is positioned in the external sleeve; the upper panel is arranged at the top end of the external sleeve; the internal sleeve is a flared structure with big lower end; the lower end of the internal sleeve is provided with a porous bottom plate; the circumferential wall of the lower part of the internal sleeve; the interior of the internal sleeve is a preheating premixing chamber; a combustion chamber is formed between the internal sleeve and the external sleeve; the preheating premixing chamber is communicated with the combustion chamber through a porous wall and the porous bottom plate; and a gas exhaust opening, an air inlet and a fuel gas inlet are formed in the upper panel. According to the invention, as air enters the porous material from various surfaces, a temperature field is uniform and the combustion is enhanced to increase the device power; through the adoption of special combustion chamber wall surface design, heat obtained by the whole wall surface is much and uniform; the micro diffuse type combustion apparatus can stably respond to fine air inlet pulsation and combustion pulsation; and meanwhile, through the adoption of the porous material with reducing aperture, tempering and backflow problems of the porous material are also avoided.

The invention belongs to the field of pulverized coal combustion and emission performance control, and specifically discloses a flameless graded oxygen-enriched and low NOx combustion method and system. The method is as follows: the flue gas participating in the circulation is divided into three paths, and the fuel of a preset quality carried by the primary air duct, the secondary air duct and the tertiary air duct are passed into the furnace for combustion. The air outlet of the secondary air duct is located in the main combustion area, and the air outlet of the tertiary air duct is located in the re-combustion area. The injection amount and mass flow of oxygen in each secondary air are controlled to control the range and the oxygen peroxide coefficient of the main combustion area and the re-burning area. Flow characteristics to realize fuel staged oxyfuel combustion mode, fuel-oxygen two-way staged oxyfuel combustion mode and flameless oxyfuel combustion mode. The system includes a boiler, a flue gas pretreatment module, a chimney, a primary air duct, a secondary air duct and a tertiary air duct. The invention can achieve stable and efficient low NO x emission, and can improve the ignition characteristics of coal powder, and promote the reburning of coal powder.

The invention belongs to the technical field of heating stoves and relates to a heating stove based on honeycomb ceramic heat accumulators. The heating stove based on the honeycomb ceramic heat accumulators comprises a stove body. A stove chamber is formed in the stove body. A flame outlet is formed in the upper end of the stove chamber. A protective sleeve is arranged in the flame outlet in an embedded mode. The first honeycomb ceramic heat accumulator and the second honeycomb ceramic heat accumulator are arranged in the protective sleeve in an embedded mode. The first honeycomb ceramic heat accumulator is located above the second honeycomb ceramic heat accumulator. The first honeycomb ceramic heat accumulator and the second honeycomb ceramic heat accumulator are separated through a supporting body, and a secondary combustion chamber is formed. The first honeycomb ceramic heat accumulator and the second honeycomb ceramic heat accumulator are each provided with a plurality of through holes formed in the vertical direction. The cross section area of each through hole of the first honeycomb ceramic heat accumulator is smaller than that of each through hole of the second honeycomb ceramic heat accumulator. Fire bars used for supporting fuel are arranged at the bottom of the stove chamber. The lower end of the protective sleeve is suspended above the fuel. A fuel feeding and first air distribution port, a second air distribution port and a third air distribution port are formed in the stove body. By the adoption of the heating stove based on the honeycomb ceramic heat accumulators, the fuel utilization rate is increased, the pollutant discharge amount is decreased, energy is saved, and environmental friendliness is achieved.

The present invention is an energy-saving and environment-friendly oven with discharge plasma assisted combustion, which comprises an insulating shell and a charcoal chamber. A high-voltage electrode is provided on the side, and a chute is provided between the lifting control device and the insulating shell; the high-voltage electrode inside the charcoal chamber is connected to the control device through a high-voltage wire; the carbon dioxide absorption and fire extinguishing device is connected to the gas inlet and outlet holes. catch. Adjust the voltage to control the charcoal flame, and make the charcoal fully burn in oxygen-poor areas and absorb carbon dioxide; make full use of electric energy, make the fire even, realize smokeless barbecue, make the food rich in active substances, and taste better; and less pollutants emissions, safe and reliable.

The invention discloses a household gas burner, belonging to the part in the household gas kitchen range. The present household gas burner has the complex structure, poor processing precision and big accumulative error in assembling. The household gas burner comprises a nozzle, a gas distributing device, a gas mixing device and a fire lid, and characterized in that the gas distributing device andthe gas mixing device are all the integrated structure, wherein the gas distributing device comprises a gas supplying pipe and a distributing chamber, a primary air inlet open is arranged on the distributing chamber, the nozzle is fixed on the orifice of the gas supplying pipe in the distributing chamber; the gas mixing device comprises a mixing pipe, a mixing chamber, a buffer baffle plate and asecondary air inlet slot, the mixing chamber is matched with the distributing chamber, the buffer baffle plate is arranged above the orifice of the mixing pipe in the mixing chamber, the secondary air inlet slot is arranged at the side surface of the gas mixing device. The gas distributing device and the gas mixing device in the invention have no accumulative error in assembling, simple assembling and safe and reliable use.