A turbomachine

A technology for turbines and impellers, which is used in the field of estimation of process quantities and can solve problems such as complex equipment and unmeasurable

Active Publication Date: 2013-03-13
SULZER MANAGEMENT AG
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some process quantities can be measured with practically sufficient accuracy using relatively expensive effective measuring equipment
However, measuring some other process quantities may require complex and rather expensive equipment, and / or some process quantities may not even be measurable
For example, measuring mass flow rate or volume flow rate with sufficient accuracy can be challenging

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A turbomachine
  • A turbomachine
  • A turbomachine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] FIG. 1 shows a schematic diagram of a turbine 100 according to an exemplary embodiment of the invention. The turbine comprises a chamber 101 with an inlet 102 and an outlet 103 for moving fluid. In FIG. 1 , cavity 101 is shown in cross-section. The turbine includes an impeller 104 disposed in the cavity to move fluid. The impeller is driven by means of an electric motor 112 equipped with a static frequency converter 110 connected to a power network 111 . The electric motor can be, for example, an induction motor, a permanent magnet synchronous motor, a brushless DC motor or a reluctance motor. It is also possible that the impeller is driven by a combustion engine. In the exemplary turbine shown in FIG. 1 , the impeller is directly connected to the shaft 113 of the electric motor. However, it is also possible to have a gear between the impeller and the motor for driving it. The electric motor can be a high speed induction motor with a solid rotor. In this document,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method for obtaining an estimate for a process quantity of a turbomachine comprises measuring (301) first process quantities and calculating (302) an estimate for a second process quantity, for example mass flow, on the basis of the measured first process quantities and a reference table of interrelations between process quantities prevailing in reference inlet conditions corresponding to a pre- defined inlet fluid temperature, a pre-defined inlet fluid pressure, and pre-defined fluid properties at the inlet. The reference table and the measured first process quantities represent such a set of data values that the estimate is obtainable on the basis of different sub-sets of the data values. Hence, the estimation task is over-posed in the sense that there is more data than necessary for obtaining the estimate. In the calculation of the estimate, more weight is given to such a part of the data which has a smaller error contribution.

Description

technical field [0001] The invention relates to a method for obtaining an estimated value of a turbine-related process variable. The process variable can be, for example but not necessarily, the mass flow rate produced by the turbine. Furthermore, the invention relates to a turbomachine, a turbomachine system comprising two or more turbomachines, and a computer program for obtaining an estimate of a process quantity associated with a turbomachine. Background technique [0002] In many applications, it is necessary to estimate or measure one or more process quantities characterizing the operation of a turbomachine, which can be, for example, a turboblower, a turbocompressor or a pump. For example, estimates of these process quantities may be needed to control a turbo blower, turbo compressor or pump so that unstable or oscillating flow conditions known as surge and stall can be avoided with sufficient safety margin, and / or to be able to Keep efficiency within acceptable lim...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D15/00F04D25/06F04D27/02G05D7/06
CPCF04D27/0261G05D7/0676F04D15/0066F04D27/0269F04D13/06F04D15/0072F04D27/001F04D25/06F04D27/004F05D2270/301G01M15/14Y02B30/70F04D15/00F04D27/02G05D7/06
Inventor A.罗伊纳南E.兰托V.托米拉
Owner SULZER MANAGEMENT AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap