36 results about "Flame structure" patented technology

The invention relates to a An electric fireplace with a flame curtain comprises a housing, a light source, a flame curtain with integral structure being disposed on the electric fireplace and in front of an electric fireplace flame generator, an imaging mechanism and a charcoal bed being disposed on the flame curtain, and a number of light-holding charcoal with a plurality of transparent surfaces being disposed on the charcoal bed. The essential effect of the present invention is to solve the problems of constant charcoal flame brightness, the lacking of reality and the bad charcoal flame simulation effect in conventional electric fireplaces. Meanwhile, the problems of constant charcoal flame shape, dull appearance and poor visual effect in conventional electric fireplace are solved as well. The present invention is of simple structure and easy assembly process, while the charcoal flame structure can be arbitrarily changed, the light-spots of the flame are sparkling intermittently with bright and shade, and the flame is of light-holding effect. The visual effect and the authenticity are both perfect.

The invention relates to a flame piloting structure for an aircraft. The structure is positioned behind an air inlet exhaust nozzle of an engine; a transitional section exists behind the air inlet exhaust nozzle of the engine; and the transitional section is used for connecting the flame piloting structure and an aircraft body. The transitional section comprises a first connecting piece and a second connecting piece; the space between the first connecting piece and the aircraft body is filled with a piece of high-temperature-resistant heat insulating felt; a groove is formed in the jointed part of the first connecting piece and the second connecting piece; a sealing piece is placed in the groove; the sealing piece comprises high-temperature cotton, a flexible spring and a ceramic fiber cloth from inside to outside, wherein the flexible spring is made of high-temperature metal; the ceramic fiber cloth coats the flexible spring; the space between the sealing piece and the groove is filled with a sealing adhesive; one layer of ceramic fiber cloth is also arranged between the first connecting piece and the second connecting piece; the second connecting piece is connected with a flame piloting groove; the flame piloting groove is made of a high-temperature-resistant C / C composite material; a shunting structure is arranged in the flame piloting groove; and tail flame ejected by the engine passes through the transitional section along an air inlet and is shunted by the shunting structure in the flame piloting groove to be ejected out from the two sides of the exterior of the flame piloting groove.

The invention discloses a burner with a flame stabilizing structure. The burner comprises a burner cap and an air flow distributor, and the burner cap is provided with main flame holes. The burner is characterized in that flame stabilizing passages extending inwards and outwards are formed below the main flame holes, and the burner cap and the air flow distributor form a cavity which is communicated with the flame stabilizing passages. Due to difference between an air flow velocity and a flame propagation velocity, flames are prone to being instable, flames burning in the flame stabilizing passages can guarantee the temperature of roots of the main flame holes to realize stabilization of flames of the main flame holes, and excellent flame stabilizing effects can be achieved.

The invention relates to a micro gas-liquid dual-purpose high energy igniter, and relates to the technical field of engines. The micro gas-liquid dual-purpose high energy igniter has the advantages that 1) the success rate is increased, and the ignition lag time is shortened under the condition of relatively low ignition energy of a single igniter plug; 2) an efficient circumferential rotational flow structure can be formed in the igniter, the flue gas and flue oil retention time is prolonged, and mixing is enhanced, so that the formation of a stable flame structure is facilitated; 3) a circumferential vortex system structure is formed in a flow field, wherein the vortex system structure comprises a vortex system structure body clinging to the inside wall surface of an inner wall and a circumferential vortex system flow structure formed by entraining inner fluid by the vortex system structure body; 4) the ignition lag is reduced, the ignition success rate is increased, and the flue gasand flue oil retention time is prolonged on the premise of the smallest size of the igniter; and 5) the atomization effect can be ensured, and the fogdrop collision with a stone wall can be avoided.

The invention discloses an experimental device for analyzing influences of volume force on flame characteristics. The experimental device comprises an experiment table body, two glass partition plates, a draught fan, five sets of pulleys, weights, a tray, a steel wire, a candle, a trolley, a wind screen and a camera. The trolley is arranged on a trolley rail of the experiment table body. The candle and the wind screen are fixed to the trolley. One end of the steel wire is hooked to the front end of the trolley, and the other end of the steel wire is wound around the five sets of pulleys and hooks the tray. The weights are arranged in the tray. The two glass partition plates are mounted in the middle of the experiment table body horizontally. Openings are formed in the two ends of the experiment table body in the length direction. The draught fan is located beside the opening of one end of the experiment table body. The camera is used for shooting the experiment process. The experimental device for analyzing the influences of volume force on the flame characteristics is simple in structure and flexible in operation, and obtained experiment data are true and reliable. The static characteristics and the dynamic characteristics of a diffusion flame structure of a movable combustion source can be researched, and an experiment foundation is laid for researching of the intrinsic physical essence and laws of the flame structure of the movable combustion source.

The invention provides a device and a method for studying the influence of external wind speed on flame propagation and stability. The device comprises a fan, a wind quantity adjusting panel, a wind speed uniform distribution panel, an experiment tunnel, a wind speed measurement window, a smoke measurement window, a draught fan, a support, a Bunsen burner, a height adjusting stand, a rubber tube, a flow meter, a valve and a gas cylinder. One end of the experiment tunnel is used for wind supply and the other end is used for wind inducing, so that the propagation characteristic and the stability of flames of a fixed fire source can be studied on the condition of uniform external wind speed. The device is low in manufacture cost, simple in structure, convenient to operate and flexible to control; experimental phenomena are easy to observe and measure; obtained data are real and reliable; experimental basis can be provided for studying the flame structure and the burning characteristics under the condition of relative motion and analyzing the propagation characteristic and the stability of flames.