4results about How to "Improve ignitability" patented technology

The present invention provides a pre-combustion chamber and an engine, the pre-combustion chamber comprising a shell, a pre-combustion chamber is formed in the lower part of the shell, a plug-in hole connected to the pre-combustion chamber and suitable for inserting a spark plug is formed in the upper part of the shell, a flame-spraying hole connected to the pre-combustion chamber is also formed in the lower part of the shell, and the length H of the pre-combustion chamber in the vertical direction is greater than or equal to the diameter D of the plug-in hole, and less than or equal to 3 times the diameter D of the plug-in hole. The pre-combustion chamber of the present invention can effectively concentrate a relatively concentrated oil-gas mixture in a limited space by setting the length H of the pre-combustion chamber within a limited range, which is conducive to the electric spark generated by the spark plug electrode to quickly ignite the oil-gas mixture to form a higher energy flame flow. At the same time, the high energy flame flow can also enter the main combustion chamber through the flame-spraying hole in the shortest path, and quickly ignite the oil-gas mixture in the main combustion chamber, thereby improving the ignition effect of the engine.

The utility model relates to the technical field of charcoal lighting barrels, in particular to a disposable charcoal lighting barrel which comprises a charcoal lighting barrel body made of combustible materials. The carbon ignition barrel comprises a bottom support and a barrel body, the two ends of the barrel body are provided with openings, the bottom support is integrally or detachably installed on the opening in the bottom of the barrel body, an ignition window is formed in the bottom support in a penetrating mode, an ignition object and an ignition object are fixedly arranged in an inner cavity of the barrel body, and the ignition object and the ignition object are correspondingly arranged. And the ignition object and the ignition window are correspondingly arranged. When the charcoal ignition barrel is used, the charcoal ignition barrel is placed on a charcoal net of an oven, charcoal is added into the inner cavity through the top opening of the barrel body, then the ignition object is ignited through the ignition window on the bottom support, the ignition object is ignited after the ignition object is ignited, the charcoal is ignited after the ignition object is ignited, the charcoal ignition barrel body is ignited after the charcoal is ignited, and finally the charcoal can automatically fall on the charcoal net. Auxiliary tools such as fuel gas, alcohol and an ignition agent are not needed, ignition operation is convenient and fast, the step and danger of charcoal pouring are omitted, and use is safer.

This utility model relates to the field of industrial boiler manufacturing technology, and in particular to a biomass-fired boiler and a method for reducing nitrogen oxide emissions. In the biomass-fired boiler, a front arch and a rear arch are located within the furnace. The grate is horizontally mounted below the furnace. The front arch and rear arch are respectively located on the inner sidewalls of the front and rear ends of the furnace. The boiler drum is mounted above the furnace. The horizontal angle of the inner sidewall of the front arch is 60–85°; the rear arch includes an inclined section and a straight section, with the horizontal angle of the inclined section being 8–15°. This design, on the one hand, helps to ensure a stable low-oxygen environment at the front of the furnace, providing suitable conditions for the continuous generation of reducing substances in the initial stage of biomass combustion; on the other hand, the inclined section stably guides the nitrogen oxide-containing flue gas from the main combustion zone and burnout zone to flow forward, forcing the nitrogen oxide-containing flue gas to remain sufficiently in the front arch area containing reducing substances, promoting efficient reduction reactions, and thus reducing reliance on additional denitrification equipment.

This invention relates to a combustible heat source composition for smoking articles, which does not contain binders or combustion inhibitors, wherein, relative to 100 parts by weight of the solid powder, it contains 1 to 5 parts by weight of a polyol. Smoking articles using a combustible heat source composed of the aforementioned composition are characterized by excellent ignition and flammability.