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Turbocompressor and Use

a turbocompressor and rotor technology, applied in the direction of machines/engines, stators, liquid fuel engines, etc., can solve the problems of space occupation, costly mounting of the rotor through axial and radial bearings, etc., and achieve the effect of increasing the overall efficiency of such an installation, low cost and good

Inactive Publication Date: 2014-09-04
KSB AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present turbocompressor is designed to be compact and stable while compensating for axial force in a simple and cost-effective manner. It efficiently compresses the medium and removes waste heat in a simple way. The compressor has bearings to prevent excessive heating of bearings as the medium is not yet in a compressed state. The surface of the components is roughened to facilitate heat transfer between components and the medium. This invention is employed for use in a heat pump in which a heat transfer medium is pumped, increasing the overall efficiency of the installation as practically no electrical power is lost. CO2 is used as heat transfer medium which is chemically harmless, available at low cost almost everywhere, and can be used in the critical region where its physical properties can be used to particularly good effect.

Problems solved by technology

This often raises problems in terms of space, owing to the arrangement of many other apparatus and machines.
To this end, costly mounting of the rotor by means of axial and radial bearings is necessary.

Method used

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  • Turbocompressor and Use
  • Turbocompressor and Use
  • Turbocompressor and Use

Examples

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Embodiment Construction

[0034]FIG. 1 shows an axial section through an oil-free turbocompressor which, in the exemplary embodiment, is designed for the delivery of carbon dioxide. The guiding paths of the carbon dioxide are represented in FIG. 2. In the following, both figures are referred to in parallel, where the components are detailed in FIG. 1 and FIG. 2 shows the guiding paths.

[0035]The carbon dioxide enters the housing 2 of the turbocompressor through the intake opening 1. In the exemplary embodiment, the carbon dioxide has at the intake opening 1 a pressure of 38 bar and a temperature of 8° C. The carbon dioxide flow splits into two partial flows 3, 4.

[0036]The as-yet uncompressed carbon dioxide flows past the motor 5 of the turbocompressor. The motor 5 is embodied as an electric motor. It is a two-pole permanent magnet machine rotating, at the reference point, at 141,000 rpm. The motor 5 is arranged on the low-pressure side of the compressor. It comprises a rotor 6 and a stator 7. The active part ...

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Abstract

A radial turbocompressor having at least two compressor stages is provided. A motor is co-axially located on a shaft with radial impellers of the compressor stages, and the motor and the compressor stages are arranged in a common, vertically-split housing. The medium to be compressed enters the housing through an intake opening in the housing, flows past and / or through the motor, and then is compressed in the compressor stages. The medium leaves the housing through an discharge opening that is arranged co-axially with the shaft, thereby minimizing axial forces in the turbocompressor.

Description

[0001]This application is a National Phase of PCT International Application No. PCT / EP2012 / 066672, filed Aug. 28, 2012, which claims priority under 35 U.S.C. §119 from German Patent Application No. 10 2011 081 801.4, filed Aug. 30, 2011 and German Patent Application 10 2012 016 844.6, filed Aug. 27, 2012, the entire disclosures of which are herein expressly incorporated by reference.BACKGROUND AND SUMMARY OF THE INVENTION[0002]The invention relates to a radial turbocompressor having at least two compressor stages, wherein a motor drives radial impellers of the compressor stages which are arranged on a shaft, wherein the motor and the compressor stages are arranged in a common housing and a medium enters the housing through an intake opening, and wherein one part of the medium is guided through the motor and another part flows past the motor, both parts are then brought back together, are compressed and exit the housing through a discharge opening.[0003]Both blowers and compressors c...

Claims

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Application Information

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IPC IPC(8): F04D17/12
CPCF04D17/122F04D25/06F04D29/5806F04D29/584F04D25/082F04D29/002F04D29/056F05D2210/12H02K9/04Y10S415/00Y10S417/00
Inventor WEILENMANN, URSFRIEDL, MARKUSUHLENHAUT, DIRK INGMAR
Owner KSB AG