53results about How to "Solve spontaneous combustion" patented technology

The invention provides a low-emission low-rotational-flow combustion chamber head structure for an airascraft engine. The low-emission low-rotational-flow combustion chamber head structure comprises a pre-burning level and a main-burning level. The pre-burning level is designed with low rotational flow, that is the gas flow is divided into two parts through an inner ring of a cyclone, one part of the flow forms jet flow with the extremely-low rotational flow strength through a current limiting plate of a center channel, and the other part of the flow forms rotational jet flow with the large rotational flow strength through an outer-side cyclone. Pre-burning level fuel is ejected from a centrifugal nozzle and then enters the combustion chamber along with pre-burning level jet flow. A pre-film type air atomizing nozzle is adopted in the main-burning level for supplying oil, the fuel is sheared and atomized by rotational jet flow, ejected by a pre-burning level external cyclone, of fuel and rotational gas flow, ejected by a main-burning level cyclone and then enters the combustion chamber. Due to a low-rotational-flow flow field, the staying time of combustion products is reduced, generation of heating power type NOx is reduced, and the combustion chamber can work stably in extremely-poor conditions. Working can be achieved by replacing the combustion chamber head of the aircraft engine, the requirement for transforming the engine is extremely low, the pollution emission level in the whole landing-taking off circulation can be reduced, and earnings are obvious.

The invention relates to the technical field of chargers, in particular to an overheating protection device and method using MOS tube conduction resistance; The holding plate is opposed to the end of the placement frame away from the jacking spring. The temperature sensor monitors the temperature of the wireless charger body in real time and transmits the temperature data to the main control board. When the main control board judges that the temperature of the wireless charger body has risen abnormally When it is high, use the main control board to control the rotation mechanism to start, so as to drive the resisting plate to rotate, and then make the resisting plate break away from the placement frame, and the jacking spring is in a compressed state under normal conditions. The self-recovery force of the coil drives the frame to rotate, and the mobile phone in the frame is separated from the coil, thereby stopping the power supply.

The invention discloses a method for utilizing mine coal gangues to control and fix sands. In the method, the coal gangues are placed in a grid shape to form a coal gangue windbreak, and shrubs are planted in grids. The placing density of the coal gangues is in direct proportion to the local wind power, and the placing density of the coal gangues in a prevailing wind direction is larger than the placing density vertical to the prevailing wind direction. An area of each grid is 2-5 square meters. The height of the shrubs is lower than the height of the coal gangue windbreak. By utilizing the mine solid waste coal gangues as materials, the method has the effects of, firstly, efficiently utilizing the mine solid waste coal gangues and solving the problems of large occupied land area of the coal gangues as well as spontaneous combustion and leaching pollution caused by the coal gangues; and secondly, solving the problems of low efficiency and easy damage of artificial grass planting gridsin the process of current sand control. The invention has the advantages of simple implementation technology and long engineering utilization period, can efficiently control mobile dunes and blowout pits, can be widely used for sand control and fixation engineering in China and is particularly suitable for desertification treatment in coal mining areas of Shanxi, Shaanxi and Inner Mongolia.