4results about How to "Achieve perturbation" patented technology

This invention discloses a fixed-fluidized bed reactor for multiphase catalytic reactions. "Fixed" refers to fixing a hollow support material within the reactor, while "fluidized" refers to the process where, after gaseous or liquid feedstocks are introduced into the hollow porous material cavity, the catalyst encapsulated within the cavity is subjected to buoyancy by the gas and liquid phases, resulting in a regional fluidized state within the cavity. The fixed-fluidized bed reactor comprises, from bottom to top, a feedstock inlet, a catalyst filling inlet, and a reaction outlet inlet, with a circulation inlet and an auxiliary control inlet at the side. The gaseous, liquid, or gas-liquid mixed feedstocks contact the hollow porous material through the connecting holes on the grid plate and then enter the cavity through the pores on the material surface. The catalyst powder filled inside is fluidized within the cavity under the disturbance of the gaseous, liquid, or gas-liquid mixed phases. An external magnetic field or microwave can further promote the fluidization of the catalyst powder, increasing the collision probability between the reactants and the catalyst powder, thereby improving catalytic efficiency.

The utility model relates to the technical field of gas turbine power generation, in particular to gas turbine combined cycle power generation low-noise emission equipment which comprises a sound absorption box body, a box door is hinged to one side of the sound absorption box body, and through holes are formed in the two faces of the sound absorption box body respectively. The silencing box body is arranged in the sound absorption box body, an air inlet is formed in one side of the silencing box body, an air outlet is formed in the other side of the silencing box body, and the air inlet and the air outlet are matched with the through holes in the two faces of the sound absorption box body respectively. Compared with the prior art, by arranging the silencing box body, the multistage serially-connected silencing cavities and the complex airflow path, stage-by-stage attenuation, disturbance and dissipation of sound waves are effectively achieved, linear propagation and high-frequency impact of noise are avoided, the noise reduction efficiency is improved, and the noise pollution risk of the system is reduced.

This application relates to the field of ice-making equipment technology, and particularly to an ice maker, which includes a shell, an inner shell, an inner liner, and a spray assembly. The shell has an inner cavity; the inner shell is disposed in the inner cavity and has a receiving cavity, and the inner shell has a bottom shell located at the bottom end of the inner shell; the inner liner is disposed in the receiving cavity and has an ice-making chamber; the spray assembly includes a spray pipe and a water pump connected in series, the spray pipe passes through the bottom shell and communicates with the ice-making chamber, the spray pipe has a spray end that extends into the ice-making chamber; the spray assembly is used to collect liquid water in the ice-making chamber and transport the liquid water to the ice-making chamber through the spray end. The above-mentioned ice maker uses a spray assembly to make the liquid water in the inner liner flow, which has a simple structure and fewer parts, thus having the advantages of saving material costs, saving installation space, and also helping to reduce the size of the ice maker.

This utility model discloses a chemical precipitation method for treating cyanide-containing wastewater. Sealing end plates are installed at both the upper and lower ends of the outer cylinder. The lower end of the inner cylinder is fixed to the lower sealing end plate of the outer cylinder, and the upper end is also equipped with a sealing end plate. Gaps exist between the upper end of the inner cylinder and the upper sealing end plate of the outer cylinder, as well as between the outer wall of the inner cylinder and the inner wall of the outer cylinder, serving as a space for circulating water flow. An inlet pipe and an outlet pipe are connected to this circulating water flow space. Several turbulence plates are evenly distributed around the inner wall of the inner cylinder. The device also includes a feed pipe and a discharge pipe that pass through the side walls of the outer and inner cylinders. The feed direction of the feed pipe is tangential to the inner wall of the inner cylinder. When using chemical precipitation to treat cyanide-containing wastewater, this device achieves a non-powered stirring function for the reaction apparatus; it has good sealing properties to prevent the leakage of cyanide-containing wastewater or hydrogen cyanide; and temperature control is achieved through circulating water.