Same-diameter impeller group working by using fluid power

Abstract

The invention discloses a same-diameter impeller group, in particular the same-diameter impeller group working by using fluid power. The same-diameter impeller group working by using the fluid power is characterized in that: a flow channel of the same-diameter impeller group is a slowly-wavy flow channel; the slowly-wavy flow channel is correspondingly formed by a multi-scale line blade and a guide blade, and one end of the multi-scale line blade is in tangent fit with that of the guide blade; and rotary angles of a convective flow of a fluid through the guide blade and the multi-scale line blade are 45-degree circular arcs. By the same-diameter impeller group working by using the fluid power, the smooth slowly-wavy flow channel can be maintained, the speed of a fluid pressure is steady, extremely low on-way loss is caused, each group of impellers can simultaneously operate in a better operating state, and higher mechanical efficiency is obtained.

Description

(1) Technical field [0001] The invention relates to a set of impellers with the same diameter, in particular to a set of impellers with the same diameter applying fluid power to do work. (2) Background technology [0002] The patent number is ZL97213812.9, and the patent name is a new type of steam turbine impeller group. One of the main technologies can make the impeller group achieve higher mechanical efficiency. According to the characteristics of the blade, it is impossible to maintain the optimal ratio of 2:1 as a whole in specific applications, and can only reach the optimal ratio line of 2:1 at any point of the blade, resulting in unsmooth fluid convection and unstable fluid pressure velocity. And now the bottleneck problem restricting the jet engine is mainly that the working impeller group can not meet the working demand of the large volume and high pressure of the compressor, so that the engine burns under the state of rich mixture of fuel under normal operation, ...

AI Technical Summary

Problems solved by technology

According to the characteristics of the blade, it is impossible to maintain the optimal ratio of 2:1 as a whole in specific applications, and can only reach the optimal ratio line of 2:1 at any point of the blade, resulting in unsmooth fluid convection and unstable fluid pressure velocity

And now the bottleneck problem restricting the jet engine is mainly that the power impeller group cannot meet the work demand of the large volume and high air pressure of the compressor, so that the engine burns under the state of rich mixture of fuel under normal operation, wasting a lot of fuel, so that the exhaust speed cannot be achieved. It has been greatly improved. As early as 1930, the pilot Frank Whittle discovered this problem, and it has not been effectively solved so far.

Images