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Motor-compressor unit with magnetic bearings

A technology of magnetic bearings and compressors, which is applied to the components, pump elements, mechanical equipment, etc. of pumping devices for elastic fluids, which can solve the problems of bulkiness, expensive layout, and easy failure.

Active Publication Date: 2017-10-13
NUOVO PIGNONE TECH SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These known arrangements are expensive and bulky
The use of a relatively large number of subsea line connectors renders this known system susceptible to failure due to water leaks within the motor compressor housing and / or the separate housing in which the electronic components of the control system are located

Method used

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  • Motor-compressor unit with magnetic bearings
  • Motor-compressor unit with magnetic bearings
  • Motor-compressor unit with magnetic bearings

Examples

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Embodiment Construction

[0027] The following detailed description of the exemplary embodiments refers to the accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. Furthermore, the drawings are not necessarily drawn to scale. Also, the following detailed description does not limit the invention. Rather, the scope of the invention is defined by the appended claims.

[0028] Reference throughout the specification to "one embodiment" or "an embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosed subject matter. Thus, appearances of the phrase "in one embodiment" or "in an embodiment" or "in some embodiments" in various places throughout the specification are not necessarily referring to the same embodiment(s). Furthermore, the particular features, structures or characteristics may be combined in any suitable...

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PUM

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Abstract

The motor-compressor unit (1) for sub-sea applications, comprises a pressure casing (3), and an electric motor (5) housed in a motor compartment (9) formed in the pressure casing (3) and a compressor (7) housed in a compressor compartment (11) formed in the pressure casing (3). A shaft (15) drivingly connects the electric motor (5) and the compressor (7). At least one magnetic bearing (21, 23, 25, 27) rotatingly supports the shaft (15) and a control system (37A-37D) is provided for controlling the magnetic bearing (21, 23, 25, 27). The control system (37A-37D) is housed in a control system compartment (31) structurally connected to and supported by the pressure casing (3).

Description

technical field [0001] The present disclosure relates to a motor-compressor unit comprising an electric motor and a compressor driven by the electric motor housed in a pressure housing. Embodiments disclosed herein relate specifically to motor-compressor units for subsea applications. More specifically, the present disclosure relates to improvements to motor-compressor units that include one or more magnetic bearings that support a drive shaft that connects a motor and a compressor. Background technique [0002] A motor-compressor unit generally includes an external pressure housing housing an electric motor and a compressor, which are connected to each other by a drive shaft. The shaft is rotatably supported in the pressure housing by a plurality of bearings. In some applications, particularly subsea applications, the pressure hull includes a motor compartment housing the electric motor, and a compressor compartment housing the compressor. Both compartments are hermetica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/12F04D25/06F04D29/058F04D29/58
CPCF04D17/122F04D25/0686F04D25/0693F04D29/058F04D29/5806F04D17/00F04D29/00
Inventor M.卡马蒂R.埃斯波西托M.奥尔蒂斯内里M.比吉
Owner NUOVO PIGNONE TECH SRL
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