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Measuring Device and Method for Circumferential Inclination of Boiler Header Pipe Joints

A boiler header and measurement method technology, applied in the direction of mechanical clearance measurement, etc., can solve the problems of high cost, many steps, difficult measurement data, etc., and achieve the effect of low device cost, wide application range and good applicability

Active Publication Date: 2018-05-11
DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a large number of headers of power plant boilers, the connecting pipes and header shells are mostly assembled and welded on the center. Usually two methods of level measurement and sample comparison are used for assembly and testing. The level measurement method needs to adjust the cylinder body to the level, and then use the level to measure the horizontal or vertical state of the connection. There are many steps and it is difficult to directly obtain the measurement data; sample The comparison method needs to make a special sample, because the specifications of the cylinder body and the connecting pipe are different, a large number of samples need to be made, and the cost is high

Method used

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  • Measuring Device and Method for Circumferential Inclination of Boiler Header Pipe Joints
  • Measuring Device and Method for Circumferential Inclination of Boiler Header Pipe Joints
  • Measuring Device and Method for Circumferential Inclination of Boiler Header Pipe Joints

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Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the measuring device for the circumferential inclination of the boiler header pipe joint includes a main ruler 1, an extension ruler 2 and two telescopic rulers 3. The left end surface of the main ruler 1 is higher than the right end surface and both have scales. The bottom of the end surface is chamfered, and two telescopic ruler chutes 4 are provided on the middle side of the main ruler 1. The telescopic ruler chutes 4 are all dovetail grooves, and the two telescopic rulers 3 are placed in their respective telescopic rule chutes 4 , The cross section of the telescopic ruler 3 is also dovetail-shaped, the lower end of the telescopic ruler 3 is a convex arc surface 3a; in the main ruler 1 is provided with a screw hole 5 communicating with the telescopic ruler slide groove 4, in the screw hole 5 A bolt (not shown) for locking the telescopic ruler is provided; the left end surface of the main ruler 1 is provided with a longitudinal extension rule ...

Embodiment 2

[0027] The measuring device for the circumferential inclination of the boiler header pipe joint of the second embodiment includes a main ruler 10 and two telescopic rulers 11. The left end surface of the main ruler 10 is higher than the right end surface and both have scales, and the bottoms of both ends are provided For chamfering, two telescopic ruler slide grooves 12 are provided on the middle side of the main ruler 10. The telescopic ruler slide grooves 12 are both dovetail grooves. The two telescopic rulers 11 are placed in their respective telescopic ruler slide grooves 12, and the telescopic ruler 11 The cross-section is also dovetail shape, the lower end of the telescopic ruler 11 is a convex arc surface 11a; the main ruler 10 is provided with a screw hole 13 communicating with the telescopic ruler slide groove 12, and a locking and telescopic screw hole 13 is provided Ruler bolt (not shown);

[0028] The second embodiment is suitable for the working condition where the p...

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Abstract

The invention discloses a boiler collecting box pipe joint circumferential inclination measurement apparatus. The measurement apparatus comprises a main ruler and is characterized in that scales are arranged at at least one end surface of the main ruler, the bottom of the end surface is provided with a chamfering, the central portion of the main ruler is provided with at least one extension scale chute, the extension scale chutes are internally provided with extension scales, and the main ruler is provided with bolts locking all the extension scales. The invention further discloses a measurement method. The apparatus and method provided by the invention have the advantages of low apparatus cost, wide application scope, rapid and simple measurement, high efficiency and direct obtaining of measurement data.

Description

Technical field [0001] The invention relates to a method for measuring the circumferential tilt of a boiler header pipe joint. Background technique [0002] For the large number of headers in power station boilers, most of the connecting pipes and header barrels are welded together. In order to ensure the alignment of the connecting pipes and barrels during the manufacturing process (that is, the central line of the connecting pipes is inclined within the specified range), Usually two methods of level measurement and model comparison are used for assembly and inspection. The level measurement method requires the cylinder body to be adjusted to the level, and then use the level to measure the horizontal or vertical state of the tube. There are many steps and it is difficult to directly obtain the measurement data; The comparative method requires the production of special templates, because the barrel and the specifications of the tube are different, a large number of samples need ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/14
CPCG01B5/14
Inventor 潘毅赖传理唐启冬张军辉何崎夏伟王婧
Owner DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP