40results about How to "Increase lateral flow" patented technology

The invention relates to a five-stand restrained mandrel continuous rolling mill which is beneficial for reducing the consumption of rolls and mandrels. It can reduce the rolling force of the rack, limit the force to the rack, reduce the steel consumption per ton of the roll and the mandrel, and save the tool cost. The pass is an ellipse-round pass system, the fourth stand and the fifth stand of the five-stand restrained mandrel continuous rolling mill respectively adopt the arc side wall round pass without eccentricity, and the fourth stand The pass is the same as that of the fifth stand, and it is characterized in that: the first stand to the third stand of the five-stand restraint continuous mandrel rolling mill adopt an elliptical pass with eccentricity, and the eccentricity of the next stand is taken as Half of the previous frame, the eccentricity of the first frame is set to 0.645 times of the thinnest wall thickness of the steel pipe rolled by the design pass, the connection angle of the second frame and the third frame is set to 14°; the fourth frame , The connection angle of the fifth rack is set to 9°.

The invention discloses a device for producing hollow fiber membranes. The device comprises a support. A spinneret, a lower joint and an upper joint are arranged successively from bottom to top on the support. A membrane material liquid inlet is arranged on the upper joint, and a membrane core liquid inlet is arranged on the lower joint. The upper joint and the lower joint are sealed through seal rings, and a spinneret orifice is arranged on the spinneret. The device for producing hollow fiber membranes is characterized in that the spinneret is a rotary spinneret, and rotary bearings are arranged at connection positions of the rotary spinneret with the lower joint and the support. The device further comprises a power unit and a transmission unit. The power unit is arranged on the support and connected with the rotary spinneret through the transmission unit. The invention further comprises a method for producing hollow fiber membranes. The device for producing hollow fiber membranes can be used for producing hollow fiber membranes through an immersion precipitation phase process or a thermal induced phase separation process, the structure is simple, manual adjustment is not used, the quality and the stability of hollow fiber membranes are improved greatly.

The invention discloses an air-blowing water purifier, comprising: an electroflocculation device, which includes: a housing, which is a hollow cylindrical structure, one side of the housing is provided with a water inlet, and the other side of the housing is provided with a The water outlet is provided with a plurality of air holes on the shell, and the plurality of air holes are connected to the air source through the air pipe, and the air pipe is provided with a solenoid valve; the cathode includes the first metal pipe; the anode includes the second metal pipe and the air pipe. Root flexible metal wire; Multiple ultrasonic probes; Filtration device, it includes: pipe body and multiple membrane wires; Water collecting bucket; Controller, it is connected with described electromagnetic valve and described ultrasonic generator, and described controller sets It is: after controlling the air source to supply air into the housing for 30 seconds, control the ultrasonic generator to radiate ultrasonic waves into the housing for 10 minutes. The invention can make the iron ions generated by the anode fully enter the water body and evenly disperse into the water body.

The invention relates to a fuel assembly with a fuel rod in a spiral structure, comprising an upper tube base, a lower tube base, and a fuel rod element installed between the upper tube base and the lower tube base; the fuel rod The element includes a first fuel rod and a second fuel rod in a spiral structure, and the second fuel rod is arranged on the outer periphery of the first fuel rod. The fuel assembly with helical fuel rods has a simple structure and is easy to process and manufacture; there is no structural grid, which avoids hooking between fuel assemblies during hoisting; no grid, avoids vibration and abrasion between fuel rods and grids, Avoid fuel rod abrasion failure; the fuel rod adopts a spiral structure, which improves the lateral flow of coolant, accelerates mixing, and optimizes heat transfer performance.

The invention relates to the field of insulation board production, in particular to additive formulas for improving the performance of insulation boards, including P.O525R ordinary Portland cement, graphite powder, vitrified microbeads, organic silicon water repellent, cement composite early strength agent, Silica fume, water, ethylene-vinyl acetate copolymer emulsion, polyether defoamer, sodium gluconate retarder; the production method used to improve the performance of the insulation board includes the following steps: Step 1: Utilize novolac epoxy resin Pretreating the polystyrene foam particles; Step 2: preparing equipment; Step 3: coating the inorganic gelling material on the substrate; Step 4: penetrating the inorganic gelling material into the substrate. When the technical scheme is adopted, it is beneficial to improve the strength index of the insulation board.

The invention relates to a large-scale circulating fluid bed boiler with a buffering bed, and relates to a structural design of the circulating fluid bed boiler. The circulating fluid bed boiler provided by the invention is provided with two hearths which are adjacently arranged in parallel, the upper parts of two hearths are completely separated, and the lower parts of the two hearths are communicated through the buffering bed; the buffering bed consists of a buffering bed top, a buffering bed front wall and a material channel formed by front and rear walls of the buffering bed and a buffering bed grid plate, the buffering bed is formed by extending and expanding two-side hearths, the structure is simple, and the buffering bed is of a membrane wall structure; materials in the lower parts of the two-side hearths transversely flow through the buffering bed, the concentration distribution uniformity and the of the temperature distribution uniformity of the materials in the two-side hearths are improved; the upper parts of the hearths are completely separated, so that extended heating surfaces such as airfoil-shaped walls and the like are conveniently distributed in the hearths; the water cooled wall heating condition at the periphery of each hearth is coincident, the water power security of the boiler is improved. The bed pressure on the two-side hearths of the boiler is self-balancing through the buffering, a ' bed turning' phenomenon is basically eliminated, and the operational security of the boiler is improved.