Small-micro centrifugal compressor with double-air suspension support
A technology of centrifugal compressor and air suspension, which is applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc. It can solve the problems that the centrifugal compressor cannot be ultra-high-speed, small and miniaturized, and achieve the effect of simple and compact structure
Active Publication Date: 2019-05-03
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology
However, centrifugal compressors can only be miniaturized through high speed. At present, the existing magnetic suspension bearings, gas bearings and sealing technologies cannot achieve ultra-high-speed miniaturization of centrifugal compressors.
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[0027] In order to further elaborate the technical means and effects that the present invention adopts for reaching the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects of the present invention are described in detail as follows:
[0028] A small and micro centrifugal compressor supported by double air suspension, such as figure 1 As shown, it includes a housing 1, a main shaft 2, a first axial stationary ring 3, a first moving ring 4, a motor rotor 5, a motor stator 6, a second moving ring 7, a second axial stationary ring 8 and a centrifugal impeller 9 .
[0029] The casing 1 of the compressor is provided with an air inlet and an air outlet. The main shaft 2 is rotatably installed in the housing 1 , and an air flow hole 21 is opened in the main shaft 2 . One end of the air flow hole 21 communicates with the exhaust port of the housing 1 , and the other end ...
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The invention discloses a small-micro centrifugal compressor with double-air suspension support and relates to the technical field of compressor design. The small-micro centrifugal compressor with double-air suspension support comprises a shell; a spindle is internally provided with an airflow through hole communicated with an exhaust hole of the shell; a first axial static ring and the inner bottom of the shell form a cavity; the first axial static ring is provided with at least two circles of ventilation holes A in a circumferential direction; a first moving ring is fixedly arranged on the spindle; a second moving ring is fixedly arranged on the spindle; a second axial static ring is fixedly arranged in the shell; and an air inlet and an exhaust hole of a centrifugal impeller are arranged opposite to an air inlet and an exhaust hole of the shell respectively. The small-micro centrifugal compressor with double-air suspension support has the beneficial effects that without mounting radial and axial thrust bearings, the compressor is full oilless, and a lubricating system is not needed, so that the structure of the compressor is simpler and more compact, and miniaturization of the compressor is facilitated; a compressor rotor system is in an air suspension state during operation of the compressor, solid contact friction loss is avoided, and the compressor can achieve an ultra-high rotating speed; and an airflow circulation channel takes away heat generated in the working process of a motor, and the effect of internal circulation cooling is achieved.
Description
technical field [0001] The invention relates to the technical field of compressor design, in particular to a small and micro centrifugal compressor supported by double air suspension. Background technique [0002] With the development of electronic technologies such as integrated circuits, the heat flux density of modern high heat flux devices is increasing. Passive cooling methods cannot meet the heat dissipation requirements. A refrigeration system is required to ensure the normal operation of the electronic system. In many occasions such as mobile or portable electronic systems, chip cooling, radar cooling, and national defense and military industries, due to space and weight constraints, there is an urgent need for lightweight, small and micro cooling systems. [0003] The compressor is the core key equipment of the refrigeration system. As a rotary turbomachinery, the centrifugal compressor has the advantages of compact and simple structure, high efficiency and reliabil...
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IPC IPC(8): F04D17/10F04D25/06F04D29/12F04D29/054F04D29/58
Inventor 唐斌赵远扬刘广彬杨启超李连生
Owner QINGDAO UNIV OF SCI & TECH