Vertical miniature air-suspending centrifugal compressor
A centrifugal compressor and air suspension technology, applied in mechanical equipment, non-variable-capacity pumps, non-displacement pumps, etc., can solve the problems of inability to achieve ultra-high-speed miniaturization of centrifugal compressors, and achieve a simple and compact structure. Effect
Active Publication Date: 2019-05-14
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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[0024] 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:
[0025] A small and micro centrifugal compressor with integrated bearing and seal, such as figure 1 As shown, it includes housing 1, main shaft 2, motor rotor 3, rotating sleeve 31, motor stator 4, fixed sleeve 41, first axial stationary ring 5, second axial stationary ring 6, moving ring 7, diameter To the static ring 8 and the centrifugal impeller 9.
[0026] 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...
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The invention discloses a vertical miniature air-suspending centrifugal compressor, and relates to the technical field of compressor design. The vertical miniature air-suspending centrifugal compressor comprises a shell; an airflow through hole communicating with an exhaust port of the shell is formed in a main shaft; a rotating sleeve is fixedly arranged on the outer surface of a motor rotor; a fixed sleeve is fixedly arranged on the inner surface of a motor stator; and two or more circles of vent holes A are formed in a first axial static ring along the circumference; one or more circles ofvent holes B are formed in a second axial static ring along the circumference; a first channel is formed by the first axial static ring, the second axial static ring, a movable ring and a radial static ring, and a second channel is formed by the second axial static ring and a centrifugal impeller; an exhaust port of the centrifugal impeller communicates with the vent holes A through the second channel, and the vent holes A communicate with the vent holes B through the first channel. The vertical miniature air-suspending centrifugal compressor has the beneficial effects that a radial thrust bearing and an axial thrust bearing do not need to be mounted, the compressor is completely free of oil, a lubrication system is not needed, and the compressor is simpler and more compact in structure; and heat generated in the working process of the motor is taken away by an airflow circulation channel, and thus the internal circulation cooling effect is achieved.
Description
technical field [0001] The invention relates to the technical field of compressor design, in particular to a vertical small and micro air suspension centrifugal compressor. 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 reliability, and lo...
Claims
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IPC IPC(8): F04D17/10F04D25/06F04D29/58F04D29/12F04D29/00F04D29/66F04D29/02F04D29/063
Inventor 唐斌刘广彬杨启超赵远扬李连生
Owner QINGDAO UNIV OF SCI & TECH