Flow guiding pipeline guiding fluid to spirally go forwards

Abstract

A flow guiding pipeline guiding fluid to spirally go forwards is characterized in that the flow guiding pipeline is composed of a common pipeline and a plurality of spiral fins arranged on the inner surface of the common pipeline. A plurality of parallel spiral lines are arranged on the wall of the pipeline, and the spiral fins are arranged with the spiral lines as base lines. The spiral angle of each spiral line, namely the included angle between a tangent line of each spiral line and the axis of each spiral line is not larger than 25 degrees, the spiral circle number of each spiral line is not larger than three, and the thickness of each spiral fin is smaller than 8% of the inner diameter of the flow guiding pipeline. The height of each spiral fin is larger than or equal to 10% of the diameter of the flow guiding pipeline. The flow guiding pipeline is arranged on an air outlet of a fresh air blower, airflow passes through the flow guiding pipeline to spirally go forwards, and the air blowing depth is obviously increased. The flow guiding pipeline is simple in structure and convenient to manufacture and mount, most flow guiding pipelines of a dual-direction fresh air system can be omitted, and occupied indoor space of air supply ducts is reduced.

Description

technical field [0001] The invention relates to a diversion pipe, in particular to a diversion pipe in which several helical fins are arranged on the inner surface of the pipe to guide the fluid to precess and speed up before flowing out of the pipe. Background technique [0002] As we all know, environmental pollution is becoming more and more serious nowadays, and air pollution directly affects the lives of residents. On days when air pollution is serious, opening windows for ventilation is not beneficial to people's physical and mental health. Moreover, with the improvement of the living standards of domestic residents, air conditioners have been widely used in buildings. When the air conditioners are enabled, the windows are usually closed. The long-term closing of windows is not conducive to ventilation, and it is impossible to discharge organic volatiles such as formaldehyde and benzene released by interior decoration materials and furniture in a timely manner, as well...

AI Technical Summary

Problems solved by technology

However, these two kinds of fresh air systems have their own shortcomings in application: the one-way fresh air system has no special air supply duct, the air flow is not easy to control, and it is difficult to achieve a good ventilation effect; the fresh air of the two-way fresh air system passes through the fresh air host. and air supply pipes into the room, the pipes will take up space when passing through the room, and domestic residential buildings also have clear requirements on the floor height

For the air-conditioning and ventilation design of public buildings with large spaces such as airport terminals, railway station waiting rooms, and gymnasiums, the traditional concept of uniformly mixed air distribution in the whole room is no longer applicable

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