35results about How to "Effective disturbance" patented technology

The invention discloses an MBR pulse aeration device free of extra power and an aeration system with the same. The MBR pulse aeration device comprises an air supply mechanism, an MBR pulse aeration device body free of extra power, an aeration main pipe and a plurality of aeration branch pipes, wherein the MBR pulse aeration device body free of extra power comprises a shell and an air storage sink-and-float tank of which the density is greater than the density of water; a sliding chute for containing the air storage sink-and-float tank and enabling the air storage sink-and-float tank to sink and float in a reciprocating manner is formed inside the shell; a cavity is formed inside the air storage sink-and-float tank; the bottom end of the cavity is open; an air inlet pipe for supplying air to the cavity is arranged at the bottom of the shell; at least one air outlet pipe is arranged on the lateral wall of the top of the shell; a built-in valve and an air outlet corresponding to the air outlet pipe are arranged on the lateral wall of the top of the air storage sink-and-float tank; and the valve can communicate the cavity with the air outlet pipe when the air outlet of the air storage sink-and-float tank reaches the position corresponding to the air outlet pipe. The MBR pulse aeration device has the advantage that the air flow can be saved in comparison with constant-quantity and constant-speed aeration under the same purging effect, therefore, energy consumption is greatly reduced; and the device is simple in structure and good in purging effect, and manual intervention to control is avoided.

The invention belongs to the technical field of diesel engine air inlet channel structural design and mixed gas forming, and discloses a spiral auxiliary air inlet channel of a diesel engine. The spiral auxiliary air inlet channel rotationally arranged around an air inlet channel is designed in order to improve the oil-gas mixing quality in a diesel engine combustion chamber and perfecting the combustion degree of diesel oil. After fresh air is converged into the air inlet channel through the spiral auxiliary air inlet channel, the air inlet quantity of each cycle of the diesel engine can be effectively increased, and the vortex intensity of gas entering the combustion chamber can be improved. In this manner, the combustion efficiency of fuel can be effectively improved, the fuel economic performance and discharge performance of the diesel engine can be improved, and the work section of the diesel engine can be expanded.

The invention relates to an air-cooled plasma protecting gas hood nozzle, belongs to the technical field of plasma processing equipment and aims at solving the problem that a workpiece generates thermal stress resulting from influence of the surrounding environment on processing, insufficient reaction and overhigh processing temperature in an atmospheric plasma processing process. Inner holes of a tubular protecting hood are conical, and three air holes which are distributed at an interval of 120 degrees are formed in the inner side wall of the tubular protecting hood; the outer circle surface of a disc is conical; the outer circle surface of the upper end of a tubular torch tube extension piece is embedded in the inner hole in the upper end of the tubular protecting hood, and the outer conical surface of the disc at the lower end of the tubular torch tube extension tube and the inner circle surface of the lower end of the tubular protecting hood are connected in a sealing manner or separated by a gap; and when a gap is formed between the outer conical surface of the disc at the lower end of the tubular torch tube extension piece and the inner circle surface of the lower end of the tubular protecting hood, the gap is in gas-guiding communication with an annular gas cavity. According to the air-cooled plasma protecting gas hood nozzle, after gas is introduced, plasma can be effectively cooled, and the plasma temperature can be reduced, so that the atmospheric plasma can be processed into a temperature sensitive material, and the application scope of the atmospheric plasma can be widened.

The invention relates to an Arab hookah comprising a filtering element, a smoke exhaust adjustment device and a smoke feeding device. The filtering element is accommodated in the upper side of a smoke feeding pipe, and a P-type oxide catalyst for filtering carbon monoxide is filled in the filtering element. The smoke exhaust adjustment device is arranged at a smoke exhaust hose, and is provided with a smoke blockage element which can at least move between a first position and a second position: when the smoke blockage element is positioned at the first position, the section of the smoke exhaust hose where the smoke blockage element is located does not communicate with atmosphere; and when the smoke blockage element is positioned at the second position, bore of the section of smoke exhaust hose where the smoke blockage is located communicating with the atmosphere is increased along with the increasing of smoke flow in the smoke exhaust hose. The smoke feeding device is arranged at the lower end of the smoke feeding pipe, and comprises a jetting part and a splitting part arranged in sequence, and after being accelerated by the jetting part, smoke from the smoke feeding pipe is randomly bidirectionally split into a liquid container at the splitting part.

The invention provides a secondary air blowing and chemical feeding combined structure of a biomass boiler. The secondary air blowing and chemical feeding combined structure of the biomass boiler can effectively solve the problem that by the adoption of a biomass boiler formed by transforming a traditional coal-fired boiler, biomass fuel has a negative influence on a heated surface in the combustion process and can also guarantee that biomass particle fuel is fully combusted. A secondary air blowing device is arranged at a front arch of a hearth of the biomass boiler. A chemical feeding structure is further arranged in the secondary air blowing device. The secondary air blowing device blows secondary air into the hearth so as to accelerate smoke disturbance in the hearth, and a combustion assistant is sprayed to the hearth by the chemical feeding structure at the same time.

The invention relates to a pyrolysis system for a solid carbonic material. The pyrolysis system comprises a circulating fluid bed hearth, a first separator, a solid heat carrier channel and a pyrolysis channel, wherein the first separator is connected with a smoke outlet of a circulating fluid bed; a solid heat carrier flows inside the solid heat carrier channel in a fluidized state; the granular solid carbonic material containing a volatile component is added from the upper part, passes through the pyrolysis channel from top to bottom by using the gravity in a fluidized state, and generates pyrolysis reaction; the pyrolysis channel and the solid heat carrier channel are partitioned by a heat-conducting dividing wall; the solid heat carrier and the solid carbonic material inside the pyrolysis channel are subjected to heat exchange through the heat-conducting dividing wall; the solid carbonic material is heated and subjected to pyrolysis reaction; the solid heat carrier inlet of the solid heat carrier channel is communicated with a solid outlet of the first separator; and an overflow port is formed at the lateral wall of the solid heat carrier channel, and communicated with a material return opening of the hearth. The invention also relates to a pyrolysis method for the solid carbonic material.

The invention relates to a pneumatic composite hole-type maize precision metering device. The pneumatic composite hole-type maize precision metering device is characterized by comprising an upper shell of a seed-metering device, a lower shell of the seed-metering device, a discharge plate, a conveying device, a gas distribution chamber shell, a seed pushing plate, a seed scrapping plate, a seed cleaning wheel and a feed shaft, wherein the upper shell of the seed-metering device and the lower shell of the seed-metering device are buckled together to form a round chamber; the gas distribution chamber shell is arranged on the outer side of the upper shell of the seed-metering device; positive pressure air enters the round chamber through a gas distribution chamber, so that the round chamber is full of positive pressure; the discharge plate is disc-shaped, and a plurality of guide grooves in curved strips type are evenly arranged at the circumference of the outer edge of the discharge plate; chamfering angles are arranged at the edges of the guide grooves; the lower surface of the discharge plate is clung to a seal ring inside an annular groove embedded into the lower shell of the seed-metering device; the combined holes are formed by the guide grooves which are not covered; the seed pushing plate is circular-arc-shaped, a strip plate is arranged at the edge of the lower segment of the seed pushing plate, and the outer edge of the seed pushing plate is tangent with the initial end of each guide groove; convex teeth of the seed cleaning wheel are clamped into the combined holes of the discharge plate to be meshed with the discharge plate, and rotate along with the discharge plate.