6results 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 discloses a structure for reducing the pressure drop in a liquid cladding multi-coupling pipeline and a use method thereof.The structure comprises a pressure balance gap formed in each coupling Hartmann wall face of the multi-coupling pipeline, the multi-coupling pipeline is formed by arranging conductive pipelines of the same size in the same direction, the adjacent conductive pipelines share a conductive wall face, and the pressure balance gap is formed in each coupling Hartmann wall face of the multi-coupling pipeline. And the external magnetic field is arranged along the arrangement direction of the pipelines, so that the common conductive wall surfaces between the adjacent pipelines are coupling Hartmann wall surfaces. The pressure balance seam is formed in the coupling Hartmann wall face in the multi-coupling pipeline structure, a new path is provided for the liquid metal to flow to the next adjacent pipeline, n pipelines are changed into one pipeline to a certain degree, the half width parallel to a magnetic field is increased, meanwhile, the induced potential in the multi-coupling pipeline can be reduced, and the liquid metal can flow to the next adjacent pipeline through the pressure balance seam. Therefore, the pressure drop of the liquid metal in the multi-coupling pipeline is reduced, the problem that the pressure drop in the current multi-coupling pipeline is too large is effectively solved, and the engineering application of the liquid cladding is promoted.

The plate heat exchanger comprises a first bottom plate, a group of first fluid medium joints, a group of second fluid medium joints, a heat exchanger group and a first top plate, a second bottom plate is arranged on the first bottom plate; the first fluid medium connector and the second fluid medium connector are arranged on the short edge below the first bottom plate. The heat exchanger group is arranged on the second bottom plate; the heat exchanger group comprises a plurality of heat exchangers; the heat exchanger is stacked on the second bottom plate; the heat exchanger comprises a first core plate and a second core plate. The second core plate is arranged on the first core plate; a space formed by the upper part of the first core plate and the second core plate completes heat exchange of the first fluid; a space formed by the lower part of the first core plate and the second core plate completes heat exchange of second fluid; the first top plate is arranged on the heat exchanger group; bionic fins are arranged on the second core plate; and a filter screen is arranged between the first bottom plate and the second bottom plate. According to the plate heat exchanger, the bionic fins are adopted, heat exchange can be conducted on two kinds of fluid at the same time, and meanwhile impurities in a system are effectively filtered through the filter screen.

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.

In order to provide a bipolar plate for an electrochemical cell of an electrochemical device, the electrochemical device comprises a plurality of electrochemical cells which follow one another in the stacking direction, the bipolar plate comprising the following:-at least one dielectric through-opening, the at least one media passage opening forms a component of a media channel extending through the electrochemical device in the stacking direction; -a sealing bead extending around the media through-opening; a plurality of medium inlets, which are arranged on the inner side of the sealing rib facing the medium passage opening and allow a medium to flow into the inner space of the sealing rib; and-a plurality of medium outlets, which are arranged on the outer side of the sealing bead facing away from the medium passage opening and enable a medium to flow out of the interior of the sealing bead, the pressure loss occurring when the medium flows through the medium inlet, the interior of the sealing bead and the medium outlet from the medium passage opening is as low as possible, and wherein the medium preferably flows out of the medium outlet in a manner that the medium is distributed as uniformly as possible over the medium inlet region of the medium distribution region. The cross-section through which the total medium inlet can flow is at least 10% larger than the cross-section through which the total medium outlet can flow.