50 results about "Inlet velocity" patented technology

On a suction surface side of a blade in an impeller, a convex portion is formed to assume a curved line from a front edge portion to a throat portion substantially in the middle in a radial direction, and this convex portion is formed to be flat assuming a curved line from the throat portion toward a rear edge portion, whereby this convex portion is formed in a position where a relative inlet velocity of fluid into the impeller is Mach number Ma≅1.

The object of the application is a transferring method and apparatus for transferring of a rod-like article from a delivery apparatus to a receiving apparatus, whereas the article is transferred lengthwise between the delivery apparatus and the receiving apparatus, comprising an inlet unit for the lengthwise transfer of the rod-like article and for giving an inlet speed to the rod-like article, an outlet unit for the lengthwise transfer of the rod-like article and for giving an outlet speed to the rod-like article, a transferring channel through which a rod-like article is transferred between the inlet unit and the outlet unit characterised in that between the inlet unit and the outlet unit is situated a transferring unit designed to give a transferring speed to the rod-like article and to transfer the rod-like article along the transferring channel to the outlet unit.

The trommel assembly (1) with a spiral assembly having a decaying spiral pitch (3) comprises rotating drum structure with the decaying spiral assembly (2) and screen panels (6) made of polymeric material or rubber compounds. The pitch (3) is at a maximum at the inlet and at a minimum at the outlet providing increased screening efficiency. Maximum pitch produces low media height with increased inlet velocity and minimum pitch increases media height. The spiral (2) is of single start, double start or multi start configuration. The pitch (3) decreases along the trommel such that screening efficiency is improved without affecting the retention time.

The invention discloses a reactor for realizing the completely-mixed flow of gas-phase or gas-solid two-phase fluid, which comprises an upper part and a lower part, wherein the upper part is connected with the lower part; the upper part and the lower part both are revolving bodies; the upper and lower revolving bodies have a structure in which the diameters of the sections of the revolving bodiesincrease gradually from the bottoms of the revolving bodies to the connection part of the upper and lower revolving bodies. The lower revolving body of the reactor is provided with at least a gas feeding channel, the top of the reactor is provided with an air outlet, and the gas feeding channel is arranged along the tangential direction of the inner periphery of the lower revolving body of the reactor. The invention also discloses a method for realizing an completely-mixed flow reaction by using the reactor, which comprises the steps of forming a spiral vertex flow first after feeding the gas, then forming an up-and-down vertex flow, and mixing the spiral vertex flow and the up-and-down vertex flow to realize back-mixing. The reactor can realize a gas-phase or gas-solid two-phase reactionby using the structure of the reactor, and has a simple structure, and can make the non-dimensional variance close to 1 by combining with the parameters such as inlet velocity and the like, thereby realizing the complete mixing.