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Supporting device for flexible pipe

A technology of supporting device and flexible pipe, applied in the direction of measuring device, pipe element, pipe/pipe joint/pipe fitting, etc., can solve the problems of inability to insert the sensor, poor bendability of the sensor cable, etc., to reduce the size, reduce the Effect of Bend Radius

Active Publication Date: 2019-05-31
MITSUBISHI HEAVY IND ENVIRONMENTAL & CHEM ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the multi-point support roller described in Patent Document 2, the sensor cable passing through the inside of the universal joint is not bent by an amount corresponding to the length of the universal joint.
Therefore, the bendability of the sensor cable is deteriorated (the bending radius becomes large), and when the bending radius of the boiler tube to be inspected is small, the sensor may become stuck in the middle and the sensor cannot be inserted.

Method used

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  • Supporting device for flexible pipe
  • Supporting device for flexible pipe
  • Supporting device for flexible pipe

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0072] Hereinafter, an embodiment of the pipe wall thickness measurement device 1 provided with the flexible pipe support device 5 of the present invention will be described in detail with reference to the drawings.

[0073] Such as figure 1 As shown, the tube wall thickness measuring device 1 of this embodiment is used when measuring the wall thickness of the boiler tube 52 in the boiler 50 . The tube thickness measurement device 1 measures the thickness of the boiler tube 52 using a sensor such as an ultrasonic probe, for example.

[0074] The boiler 50 includes a header 51 and a plurality of boiler tubes 52 . The boiler tubes 52 are a plurality of rigid tubes serving as a flow path of water vapor, are arranged along the extending direction of the header 51 , and are connected to the header 51 at one end. Each boiler tube 52 communicates with the header 51 and extends to be perpendicular to the header 51 .

[0075]In the header 51 , a plurality of inspection holes 53 , wh...

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Abstract

The invention provides a flexible tube supporting device (5) which has a supporting piece main body (6) mounted at the periphery of a flexible tube in a manner of being inserted along a rigid axis direction of the tube into the tube; and a plurality of rollers (7) arranged between the supporting piece main body (6) and the tube at intervals on a circumferential direction of the tube in a spaced manner, mounted to the supporting piece main body (6) in a freely rotating manner and in contact with an inner surface of the tube, the supporting piece main body (6) being provided with a first main body part (11) provided with a through hole (14) with a diameter larger than an eternal diameter of the flexible tube, and a second main body part (12) including a wedge part (21) inserted between a radial gap between the through hole (14) and the flexible tube.

Description

technical field [0001] The present invention relates to support devices for flexible pipes. [0002] This application claims priority based on Japanese Patent Application No. 2017-033296 for which it applied on February 24, 2017, and uses the content here. Background technique [0003] For example, boilers for waste incineration require periodic boiler tube wall thickness measurements to detect defects. A water immersion UT method and the like are known as a general method for measuring the wall thickness of boiler tubes. [0004] For example, Patent Document 1 describes a technique for measuring the wall thickness of a boiler tube without cutting the boiler tube. In the technique described in Patent Document 1, a guide tube for guiding an ultrasonic probe (sensor) for wall thickness measurement is used. After the guide pipe is introduced into the header through an inspection hole formed in the header, the tip thereof is guided to the boiler tube. [0005] Then, the ultr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B17/02
CPCG01B17/02F16L55/26
Inventor 原田朋弘增山政次益本雅典久保田泰辅
Owner MITSUBISHI HEAVY IND ENVIRONMENTAL & CHEM ENG CO LTD