3results about How to "Reduce total pressure drop" patented technology

The application discloses a reverse cyclone type particle bed flue gas purification system and a purification method thereof, and relates to the technical field of high-temperature flue gas purification. The reverse cyclone type particle bed flue gas purification system comprises a reverse cyclone type moving bed unit, which comprises a storage bin, a feeding mechanism connected with an outlet of the storage bin, a moving bed body, an outlet of the feeding mechanism being communicated with the moving bed body, a gas outlet being arranged at a side wall of the moving bed body, a cyclone unit, an outlet at a lower end of the moving bed body being communicated with the cyclone unit through a gas-solid contact unit, a gas inlet being arranged at a side wall of the cyclone unit, an elutriation cyclone separator, a solid outlet of the cyclone separator being communicated with the storage bin, and an outlet at a lower end of the cyclone unit being communicated with a tangential inlet of the cyclone separator through a lifting mechanism. The application can realize efficient dust removal under a higher treatment capacity and meet the requirement of long-period stable operation.

The invention relates to the technical field of catalysts, and discloses a heteropolyacid catalyst as well as a preparation method and application thereof. The roundness P of the heteropolyacid catalyst is more than or equal to 0 and less than or equal to 0.8, meanwhile, the stacking density rho of the heteropolyacid catalyst is limited, and the relationship between the roundness P and the average radius Ravg is more than or equal to 0 and less than or equal to 0.95, namely (2 * rho * P) / Ravg; the catalyst can be efficiently stacked and arranged in the tube nest of the reactor, so that the catalyst is arranged more tightly, channeling and reverse mixing of feed gas among catalyst particles are effectively reduced, the utilization rate of methylacrolein can be increased in the reaction of producing methacrylic acid by oxidizing methylacrolein, and meanwhile, the occurrence of excessive reaction is reduced; therefore, the catalyst can keep high methylacrolein conversion rate and methacrylic acid selectivity at the same time. Meanwhile, the specific structure of the outer surface of the catalyst can enable the catalyst to obtain good mechanical strength, the cracking and crushing conditions of the catalyst are reduced, and the service life of the catalyst is prolonged.

The utility model discloses a combined ADAS field controller water -cooling heat abstractor, it includes casing and apron, is seted up with the water inlet and the water outlet in the casing on the flow channel groove, along the fluid flow direction, the flow channel groove includes first flow channel groove, second flow channel groove and third flow channel groove in proper order, at least one turbulence column group is provided in first flow channel groove, and the multiple turbulence columns in each turbulence column group are regularly distributed, and the heat dissipation module is provided in third flow channel groove, and a plurality of interval distribution's heat dissipation fin is provided on the heat dissipation module, and fluid is configured to be able to flow through the gap between two two adjacent heat dissipation fins, and the apron is sealed and covers on the flow channel groove, and the flow channel groove is sealed and is surrounded through the casing and apron and forms the flow channel, the water -cooling flow channel of the device adopts the turbulence column and heat dissipation module of increasing, and the heat is effectively conducted from ADAS field controller mainboard through the water -cooling mode, improves the heat dissipation efficiency, can better increase the cooling liquid heat conduction efficiency, reduces the temperature rise, and the reliability of product is greatly improved.