3results about How to "Stable combustion flame" patented technology

This application discloses a coal gasification pulverized coal co-firing system and method, solving the technical problems of poor ignition and flame stability of pulverized coal as an inert fuel in existing technologies. The coal gasification pulverized coal co-firing system includes a coal gasification pulverized coal bin, a boiler flue gas assembly, and one or more pulverized coal feeding assemblies. The boiler flue gas assembly includes a boiler, a hot primary air branch, and a hot secondary air branch. The boiler has a furnace, a hot primary air inlet, and a hot secondary air inlet. The hot secondary air branch has a first branch and a second branch. The hot primary air inlet is located below the hot secondary air inlet. The pulverized coal feeding assembly includes a pulverized coal feeding pipe, a pulverizer, an air-coal mixer, and a spray gun. The first inlet of the air-coal mixer is connected to the pulverizer, the second inlet of the air-coal mixer is connected to the first branch, and the mixing outlet of the air-coal mixer is connected to the inlet of the spray gun. The outlet end of the spray gun extends into the hot secondary air inlet and is connected to the furnace. This achieves efficient and stable co-firing of coal gasification pulverized coal in a pulverized coal boiler.

The utility model discloses a kind of blast system and cooking utensil of supplementary secondary air, blast system includes fan and air volume regulating device. Air volume regulating device includes adjusting seat and adjusting valve core, adjusting seat is equipped with valve cavity, adjusting valve core is rotationally arranged in valve cavity, and located on the airflow flow path of fan. Adjusting seat is equipped with at least two airflow distribution ports of communicating valve cavity, adjusting valve core is equipped with with airflow distribution port one-to-one corresponding air hole, adjusting valve core rotates, air hole can selectively with corresponding airflow distribution port communication or disconnect. The blast system is rotated by controlling adjusting valve core, can make only one air hole with corresponding airflow distribution port communication, while the rest air hole is not communicated with airflow distribution port, prevent air leakage, make the air volume of burner stable and sufficient, and combustion efficiency is high. At the same time, two air holes can also be communicated with corresponding airflow distribution port, realize that one fan is simultaneously two burners air supply, simplify structure, reduce cost, improve energy-saving effect.

This invention discloses a low NO X A hydrogen-ammonia fusion micro gas turbine includes a combustion chamber with several secondary air inlets on its wall. These secondary air inlets are used to introduce a portion of compressed air and a first-pass liquid ammonia fuel into the combustion chamber. Within the combustion chamber, a pyrolysis chamber with a pyrolysis gas outlet is located near the turbine end. This pyrolysis chamber contains a catalyst and is supplied with a second-pass liquid ammonia fuel. The second-pass liquid ammonia fuel is pyrolyzed under the heat energy of the combustion chamber and the action of the catalyst. The resulting pyrolysis gas enters the combustion chamber through the pyrolysis gas outlet for combustion. This invention utilizes the high-temperature flue gas generated in the combustion chamber as a heat source to achieve catalytic pyrolysis of ammonia within the gas turbine combustion chamber, producing a hydrogen-rich mixture, which is then introduced into the combustion chamber as a combustion aid to stabilize the ammonia combustion flame and reduce NO. X While emitting pollutants, energy is utilized in a tiered manner.