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Lubrication-free centrifugal compressor

A compressor impeller and gas compression technology, applied in compressors, irreversible cycle compressors, refrigerators, etc., can solve problems such as damage, loss of support of the rotating shaft, etc.

Pending Publication Date: 2021-09-10
SMART E LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event of an energy interruption to the control system, the rotating shaft could lose its bearing and come into contact with the high-speed rotating stator, causing significant and permanent damage

Method used

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  • Lubrication-free centrifugal compressor
  • Lubrication-free centrifugal compressor
  • Lubrication-free centrifugal compressor

Examples

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Embodiment Construction

[0030]The present invention is a compact device for gas compression driven by an axial synchronous motor without using any type of lubricant.

[0031] figure 1 A single moving part of the motor-impeller rotating assembly (hereinafter referred to as the rotor) is shown. The rotor has a centrifugal impeller 1 which is responsible for the transfer of kinetic energy to the process gas. exist figure 1 In the embodiment shown, only one impeller is shown, but more than one impeller may be used. The impeller is mounted on the shaft 5 and fixed thereon. If multiple impellers are used, all can be mounted and fixed on the same shaft.

[0032] The axial flow synchronous permanent magnet motor 2 is formed by a fixed stator part and a rotating part. The stator part of the electric machine contains the coils, different aids for support and may optionally contain a part of the ferromagnetic core. The section may be formed by one or more components located between components of the rot...

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PUM

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Abstract

A gas compression compact device comprised of: a) one or more centrifugal compressors; and b) a high speed axial flow permanent magnet synchronous electric motor. The electric motor and the compressor are directly coupled on a single axis and supported by passive magnetic and electrodynamic bearings, free of lubrication. The equipment does not use mechanic seals since the rotor is placed inside the pressure containment of the gas. The equipment does not require auxiliary systems for cooling, filtration, separation or feeding of lubricant fluids.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application 62 / 769,323, filed November 19, 2018, which is hereby incorporated by reference in its entirety. technical field [0003] The invention relates to the field of gas compression equipment. In particular, the invention relates to compact electrical devices or equipment that use centrifugal compressors to increase air pressure. Background technique [0004] Currently, gas compression by mechanical means is implemented by different technologies, which have been widely disseminated and tested since a few years ago. Among the most common methods, there are centrifugal, axial, alternating and screw compressors. [0005] Alternating or piston compressors are structurally similar to internal combustion engines. A piston or plunger is displaced longitudinally in an alternating fashion within a cylinder against which a series of seals bear. A set of valves allow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D1/00F04D17/00F04D29/04F25B1/04
CPCF04D25/0653F04D17/10F04D17/122F04D29/058F04D25/06F04D29/0413
Inventor E·J·埃切尼克S·拉博利塔
Owner SMART E LLC