Steam turbine splitter plate throat width measuring chain pearl

A wide measurement, steam turbine technology, applied in the direction of mechanical measuring devices, mechanical clearance measuring, measuring devices, etc., can solve the problems of reading error, inconvenient diaphragm throat width size, and the inability of inspectors to judge accurately, so as to achieve easy operation , Intuitive reading, high accuracy effect
CN101118144BActive Publication Date: 2010-09-15DONGFANG ELECTRIC CORP LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
DONGFANG ELECTRIC CORP LTD
Publication Date
2010-09-15

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Abstract

The present invention provides a partition plate throat width measuring chain bead for a steam turbine, and the measuring chain bead comprises at least more than two global probe heads (1), at least more than two positioning sticks (2) and a measuring device body (3). The global probe heads (1), according to different diameters from small to big or from big to small, each adjacent global probe head (1) of which the center is positioned in the same plane, according to same or different spaces, are arranged in sequence to form a measuring chain, the global probe heads (1) are arranged on the positioning sticks (2) and fixed on the measuring device body (3) through the positioning sticks (2) according to an arrangement way of the global probe head (1). The measuring device is characterized in that the measuring size range is large, the operation is simple, the measuring accuracy is high, and the reading is direct-viewing, flexible and convenient.
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Description

technical field

[0001] The invention relates to a detection tool, in particular to a measuring tool for measuring the distance between two profiles of a mechanical part with high-precision profile structure features. Background technique

[0002] There are many factors affecting the power generation efficiency of a steam turbine, one of which is the influence of the throat width of the steam turbine diaphragm on the steam flow, because the size of the throat width of the steam turbine diaphragm determines the flow area of ​​the steam flow, and the deviation of the flow area will directly Affect the power generation efficiency of the steam turbine. Improving the manufacturing accuracy of the throat width of the steam turbine diaphragm is mainly achieved through the control of the dimension accuracy of the diaphragm throat width during the manufacturing process. Among them, the accuracy of the detection of the diaphragm throat width is directly related to the accuracy of the f...

Claims

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