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Speedometer for steam turbine

A tachometer and steam turbine technology, applied in the field of instrumentation, can solve the problems of low accuracy and short life of vertical centrifugal tachometers, and achieve the effects of long life, increased reliability, and reduced downtime for changing the meter.

Inactive Publication Date: 2011-11-16
李明生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the shortcomings of the vertical centrifugal tachometer, such as low precision, short service life, frequent maintenance, and the need to stop and change the meter during maintenance, while the existing automatic digital display meter cannot directly replace the vertical centrifugal tachometer and be used in steam turbine power generation To solve the problem of the unit, and provide a steam turbine speedometer that can replace the vertical centrifugal tachometer and be applied to the steam turbine generator set

Method used

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  • Speedometer for steam turbine
  • Speedometer for steam turbine

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Embodiment 1

[0009] Such as figure 1 As shown, a steam turbine tachometer includes a transmission 1, an electromechanical converter 2 and a digital display meter 3. The transmission 1 is connected to the electromechanical converter 2 through a shaft 5, and the electromechanical converter 2 is connected to the digital display meter through an electric wire 4. 3-phase connection.

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Abstract

The invention belongs to the technical field of instruments and particularly relates to a speedometer for a steam turbine, and the speedometer provided by the invention is mainly used for solving the problems of low accuracy, short service life, frequent maintenance, halt for meter replacement in maintenance and the like of a vertical centrifugal tachometer. The technical scheme of the invention is as follows: the speedometer is characterized by comprising a speed variator, an electro-mechanical transducer and a digital display meter, wherein the speed variator is connected with the electro-mechanical transducer through a shaft; and the electro-mechanical transducer is connected with the digital display meter through an electrical wire. The speedometer for the steam turbine has the advantages of high accuracy, multiple functions, long service life, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of instrumentation, and in particular relates to a steam turbine speedometer. Background technique [0002] At present, many turbogenerators use vertical centrifugal tachometers for speed measurement. This meter has the disadvantages of low accuracy, short life, frequent maintenance, and the need to stop and replace the meter during maintenance. It is no longer suitable for the development needs of modern economy. However, due to Restricted by the structure of the steam turbine generator set, the existing advanced automatic digital display meter cannot directly replace the vertical centrifugal tachometer and be used in the steam turbine generator set, which affects the improvement of the economic benefit of the generator set. Contents of the invention [0003] The present invention mainly aims at the shortcomings of the vertical centrifugal tachometer, such as low precision, short service life, frequent ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/44
Inventor 李明生
Owner 李明生