Centrifugal contra-rotating air pump with two ends axially feeding air

A technology of axial air intake and air transfer, applied in radial flow pumps, components of pumping devices for elastic fluids, pumps, etc., can solve the problems of low suction capacity, poor practicability, and high energy consumption of air pumps. To achieve the effect of compact structure, long service life and low noise

Inactive Publication Date: 2021-07-13
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a double-rotor counter-rotating air pump suitable for air suction and discharge systems in order to solve the problems of low suction capacity, high energy consumption, and poor practicability of traditional air pumps.

Method used

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  • Centrifugal contra-rotating air pump with two ends axially feeding air
  • Centrifugal contra-rotating air pump with two ends axially feeding air
  • Centrifugal contra-rotating air pump with two ends axially feeding air

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Effect test

Embodiment

[0033] A double impeller counter-rotating wind wheel structure suitable for small wind power generators of the present invention is used to conduct wind tunnel blowing research, and the incoming wind speeds are respectively 7m / s, 8m / s, 9m / s and 10m / s. The output power of the single-wheel wind rotor structure and the counter-rotating wind rotor structure of the same design size (same airfoil and the same maximum rotation radius) were measured respectively, and the experimental results are as follows:

[0034] Table 1 Experimental structure

[0035]

[0036] It can be seen from Table 1 that the dual-blade counter-rotating wind rotor structure of the present invention has at least 41% improvement in wind energy utilization rate compared with the conventional single-blade wind rotor structure under moderate wind conditions.

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Abstract

The invention discloses a centrifugal contra-rotating air pump with two ends axially feeding air. On the premise of basically not changing the overall size of a traditional air pump, through reasonable arrangement of a fan and a centrifugal turbine, a novel coaxial double-coupling rotor contra-rotating structure is adopted, and through the principle of conducting secondary reverse acceleration on fluid entering a suction system, lower negative pressure is achieved in the suction system, so that the fluid suction capacity of the air pump is improved. Under the condition of the same size and motor power, the suction capacity of the single contra-rotating air pump is 1.5 times or above that of a traditional air pump system. The contra-rotating air pump is novel in structure, high in technical content and convenient to manufacture, apply and popularize and has innovativeness.

Description

technical field [0001] The invention discloses a centrifugal counter-rotating air pump with axial air intake at both ends, belonging to the technical field of gas suction and discharge. Background technique [0002] With the development of society and the increasing demand for energy, new air pumps with stronger suction capacity and less energy consumption will be more widely used. This technology is born out of the advanced flow control technology that will be applied to the next generation of aero-engines. Under the premise of low power consumption and low noise, it realizes the transportation of large air flow and high efficiency by a small-volume compact air pump. The actual measurement shows that a device the size of a wastebasket can completely circulate, filter and purify the air in an office space with an area of ​​50 square meters and a floor height of 3 meters within 10 minutes. Contents of the invention [0003] In view of this, the object of the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/16F04D25/16F04D29/00F04D29/30
CPCF04D17/164F04D29/002F04D25/163F04D25/166F04D29/30
Inventor 石强樊未军张荣春
Owner BEIHANG UNIV
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