Centrifugal fan for stratosphere

A centrifugal fan and stratospheric technology, which is applied in the field of stratospheric airships, can solve the problems of high-efficiency height adjustment of airships and long-term airborne, low efficiency and flow rate of stratospheric fans, and low pressure head, etc., to achieve increased fluid pressure, The effect of high pressure head and large flow

Pending Publication Date: 2022-07-05
AEROSPACE INFORMATION RES INST CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The related stratospheric fan has low efficiency and flow rate, low pressure head and heavy weight, which cannot meet the needs of airships for efficient height adjustment and long-term vacancy

Method used

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  • Centrifugal fan for stratosphere
  • Centrifugal fan for stratosphere
  • Centrifugal fan for stratosphere

Examples

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Embodiment Construction

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the embodiments described below are only a part of the embodiments of the present invention, but not all of the embodiments. Those of ordinary skill in the art, based on these embodiments, all other embodiments obtained under the premise of no creative work, all belong to the protection scope of the present invention.

[0032] The specific technical features described in the specific embodiments can be combined in any suitable manner unless there is a contradiction. For example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, various possible combinations of variou...

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Abstract

The embodiment of the invention provides a centrifugal fan for a stratosphere, and the centrifugal fan comprises a volute which is internally provided with a first cavity, and the first cavity penetrates through the volute along a first direction; the stator blade diffuser comprises a cover body extending in the first direction and a blade grid structure connected to one end of the cover body. Wherein a second cavity penetrating through the cover body in the first direction is formed in the cover body, the cover body is partially located in the first cavity, the cover body is fixed to the volute, the blade grid structure is arranged at the first end, located in the first cavity, of the second cavity, and the blade grid structure comprises a plurality of first blades which extend in the first direction and are distributed around the circumferential edge of the cover body at intervals; the movable impeller assembly is arranged in the second cavity and comprises an impeller and a chassis which are sequentially connected in the first direction, the impeller can rotate in the first direction, the chassis is located at the first end of the second cavity, and the blade grid structure surrounds the chassis so that airflow can sequentially pass through the impeller and the blade grid structure.

Description

technical field [0001] The invention relates to the field of stratospheric airships, in particular to a centrifugal fan for stratosphere. Background technique [0002] As a kind of aerostat with a power system, the stratospheric airship can realize functions such as long-term residence in the stratosphere, fixed-point hovering, and carrying various loads. It has broad application prospects in communication, observation, and airborne early warning. . There are often multiple airbags inside the stratospheric airship. The main airbag is used to fill the buoyancy gas to provide buoyancy; the secondary airbag is used to fill the air to adjust the pitch angle of the airship, adjust the airship's airborne height, adjust the hull pressure and maintain the airship's aerodynamics. Shape and other purposes; among them, the filling and discharge of the air of the auxiliary air bag is realized by the pressure control system. The fan is an important part of the entire pressure control s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/16F04D29/42F04D29/44F04D29/30F04D29/28F04D25/08B64B1/58
CPCF04D17/165F04D29/4233F04D29/444F04D29/281F04D29/30F04D25/08B64B1/58F05D2240/12
Inventor 屈维何泽青陈其秦玉梅
Owner AEROSPACE INFORMATION RES INST CAS
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