CN211741119U

CN211741119U - Fixed rotatory frock of X defectoscope

Info

Publication number: CN211741119U
Application number: CN201921912975.6U
Authority: CN
Inventors: 林平锋; 邓晓敏; 付军华; 张辉
Original assignee: China Nuclear Industry 23 Construction Co Ltd
Current assignee: China Nuclear Industry 23 Construction Co Ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-10-23
Anticipated expiration: 2029-11-07

Abstract

This belongs to nuclear power nondestructive test technique, concretely relates to fixed rotatory frock of X defectoscope, including circular shape pipe clamp, be located the outside U type pipe strap of pipe clamp, locate the fixed plate of pipe clamp below to and the fixed support of locating the fixed plate below, the pipe clamp surface be equipped with the recess, U type pipe strap bending part the radius closely paste and in the recess, through once fixed and around the rotatory transform defectoscope position in pipe center, realize the flaw detection of heavy-calibre pipeline weld bead, reduce the time of repeated adjustment defectoscope height and fixed defectoscope position. The tool is large in size of the flaw detector, is suitable for large-diameter pipelines and pipelines with the minimum diameter of 200mm, and can replace the fixing mode of binding the binding belt to bind the flaw detector in the prior art.

Description

Fixed rotatory frock of X defectoscope

Technical Field

The utility model belongs to nuclear power nondestructive test technique, concretely relates to industry X-ray production apparatus positioner.

Background

A nuclear power plant area adopts an X-ray flaw detector to perform nondestructive detection after welding, and relates to pipelines and equipment. An X-ray is a ray that is invisible to the human eye but that penetrates an object. The industrial X-ray machine is used for nondestructive flaw detection of aerospace, petroleum construction, natural gas pipelines, boilers, pressure vessels and the like. The industrial X-ray machine emits rays at 360 degrees in the circumferential direction and emits rays at 60 degrees in a directional mode; the voltage of the divided voltage is from 10kv to 450 k. The X-ray machine generates X-ray by bremsstrahlung, electron capture and internal energy conversion, so the X-ray machine belongs to bremsstrahlung.

For a large-diameter pipeline, an X flaw detector is adopted for flaw detection, and the following difficulties exist: the weight of the flaw detector body is about 20KG, and the circular pipeline has no fixed hanging points and is easy to fall off; the binding belt is adopted to bind and fix the pipe, multiple times of adjustment are needed, and the operation time is long; the flaw detection operation space is small, and the position is difficult to adjust; the binding is easy to fall off, and the radiation irradiation risk is high. At present, the hoisting belt is adopted to bind and fix, manpower is rotated and fixed again, time and labor are wasted, the adjusting difficulty is high, the efficiency is low, and the project progress is seriously influenced.

Disclosure of Invention

The utility model aims at providing a fixed rotatory frock of X defectoscope, it can replace the fixed mode that adopts the binding area to bind the defectoscope, realizes quick fixed to X radiographic inspection machine among the nuclear power station heavy-calibre pipeline flaw detection work progress.

The technical scheme of the utility model as follows:

the utility model provides a fixed rotatory frock of X defectoscope, includes circular shape pipe clamp, is located the outside U type pipe strap of pipe clamp, locates the fixed plate of pipe clamp below to and the fixed support of locating the fixed plate below, the pipe clamp surface be equipped with the recess, U type pipe strap bending part the radius closely paste and in the recess.

The pipe clamp comprises two identical semicircular bodies, a groove is formed in the middle of the outer side surface of each semicircular body along the axial direction of the circle, the two semicircular bodies are fixedly connected to form a complete circle, the radius of the bent part of the U-shaped pipe clamp is matched with the groove in the outer surface of the pipe clamp, and the bent part of the U-shaped pipe clamp is tightly attached to the groove.

The end parts of the semi-circular bodies are fixedly provided with locking sheets, and the two semi-circular bodies form a complete circle through bolts and the locking sheets.

The fixed plate comprises a bottom plate and a mounting and positioning block fixedly arranged in the middle of the bottom plate.

The upper surface of the mounting and positioning block is a curved surface, the radius of the curved surface is matched with the groove of the pipe clamp, and the curved surface is tightly attached in the groove.

The bracket is two vertical plates which are perpendicular to the fixing plate, and an X-ray detector is fixedly arranged in the middle of the bracket.

The U-shaped pipe clamp is provided with a hand wheel which is positioned below the fixing plate.

The hand wheel is connected with the U-shaped pipe card through threads.

And mounting holes are respectively formed at two ends of the fixing plate.

The utility model has the advantages as follows: the position of the flaw detector is changed by once fixing and rotating around the center of the pipe, so that the flaw detection of the large-caliber pipeline welded junction is realized, and the time for repeatedly adjusting the height of the flaw detector and fixing the position of the flaw detector is reduced. The tool is large in size of the flaw detector, is suitable for large-diameter pipelines and pipelines with the minimum diameter of 200mm, and can replace the fixing mode of binding the binding belt to bind the flaw detector in the prior art.

Drawings

FIG. 1 is a schematic view of a fixed rotary tool of an X-ray flaw detector;

FIG. 2 is a schematic view of the pipe clamp;

FIG. 3a is a schematic view of a fixing plate;

FIG. 3b is a top view of FIG. 3 a;

in the figure: 1. a pipe clamp; 2, U-shaped pipe clamps; 3. a fixing plate; 4. a hand wheel; 5. a support;

1-1, a semicircular body; 1-2, locking sheet; 1-3, a groove; 1-4, locking the bolt;

3-1, a bottom plate; 3-2, installing a positioning block; 3-3, mounting holes.

Detailed Description

The present invention will be further explained with reference to the drawings and the detailed description.

As shown in fig. 1, the tool comprises a pipe clamp 1 with a circular main body, a U-shaped pipe clamp 2 which is positioned and installed through the pipe clamp 1 and is positioned outside the pipe clamp 1, a fixing plate 3 which is installed below the pipe clamp 1, and a hand wheel 4 which is installed on the U-shaped pipe clamp 2 and is positioned below the fixing plate 3. The fixing plate 3 plays a further role in guiding and positioning the pipe clamp 1, and the hand wheel 4 is in threaded connection with the U-shaped pipe clamp 2 to play a role in tightly fixing and positioning the fixing plate 3. A bracket 5 is fixedly arranged below the fixed plate 3, and the flaw detector is hung on the brackets 3-4 of the fixed plate 3, so that the head of the X flaw detector is aligned to a welding seam to be detected.

The pipe clamp 1 structure shown in fig. 2 comprises two semicircular bodies 1-1 with the same parts, wherein a circle of groove 1-3 is processed in the middle of the outer side surface of each semicircular body 1-1 along the axial direction of a circle, locking pieces 1-2 are fixedly installed (welding can be adopted) at the end parts of the semicircular bodies 1-1, the locking pieces 1-2 are distributed above and below the semicircular bodies 1-1, installation screw holes are processed in the locking pieces 1-2, and the two semicircular bodies 1-1 are combined into a complete circle by using locking bolts 1-4 and the locking pieces 1-2 to form the pipe clamp 1.

The pipe to be inspected in use is mounted in the pipe clamp 1. And the contact part of the pipeline is isolated by a rubber pad, so that the pipeline loss is avoided.

The radius of the bending part of the U-shaped pipe clamp 2 is matched with the grooves 1-3 on the outer surface of the pipe clamp 1, and the bending part of the U-shaped pipe clamp 2 is tightly attached in the grooves 1-3.

The fixing plate 3 shown in fig. 3a and 3b comprises a bottom plate 3-1 and a mounting and positioning block 3-2 fixedly mounted in the middle of the bottom plate 3-1, and mounting holes 3-3 are respectively processed at two ends of the bottom plate 3-1.

When the pipe clamp is installed, the bottom plate 3-1 is positioned in the middle of the U-shaped pipe clamp 2 and below the pipe clamp 1. The mounting and positioning block 3-2 is positioned in the groove 1-3 on the outer side of the pipe clamp 1, and two ends of the U-shaped pipe clamp 2 are respectively mounted in the mounting holes 3-3 on two ends of the bottom plate 3-1.

The hand wheel 4 is connected with the pipe thread at the two ends of the U-shaped pipe clamp 2, and when the flaw detection position is fixed, the hand wheel 4 is screwed to the lower part of the fixing plate 3 to tightly push the fixing plate 3. When the next position is used for flaw detection, the hand wheel 4 is loosened, the U-shaped pipe clamp 2 and the fixing plate 3 drive the flaw detector to rotate to the specified position along the grooves 1-3 together, and the flaw detector is tightly propped and fixed through the hand wheel 4.

Claims

1. The utility model provides a fixed rotatory frock of X defectoscope which characterized in that: the pipe clamp comprises a circular pipe clamp (1), a U-shaped pipe clamp (2) located outside the pipe clamp (1), a fixing plate (3) arranged below the pipe clamp (1) and a support (5) fixedly arranged below the fixing plate (3), wherein a groove is formed in the outer surface of the pipe clamp (1), and the radius of the bending part of the U-shaped pipe clamp (2) is tightly attached to and in the groove.

2. The fixed rotary tool of the X-ray flaw detector of claim 1, characterized in that: the pipe clamp (1) comprises two identical semicircular bodies (1-1), a groove (1-3) is formed in the middle of the outer side surface of each semicircular body (1-1) along the axial direction of a circle, the two semicircular bodies (1-1) are fixedly connected to form a complete circle, the radius of the bending part of the U-shaped pipe clamp (2) is matched with the groove (1-3) in the outer surface of the pipe clamp (1), and the bending part of the U-shaped pipe clamp (2) is tightly attached to the groove (1-3).

3. The fixed rotary tool of the X-ray flaw detector of claim 2, characterized in that: the end parts of the semi-circular bodies (1-1) are fixedly provided with locking sheets (1-2), and the two semi-circular bodies (1-1) form a complete circle through bolts and the locking sheets (1-2).

4. The fixed rotary tool of the X-ray flaw detector of claim 1, characterized in that: the fixing plate (3) comprises a bottom plate (3-1) and a mounting positioning block (3-2) fixedly arranged in the middle of the bottom plate (3-1).

5. The fixed rotary tool of the X-ray flaw detector of claim 4, wherein: the upper surface of the mounting and positioning block (3-2) is a curved surface, the radius of the curved surface is matched with the groove of the pipe clamp (1), and the curved surface is tightly attached in the groove.

6. The fixed rotary tool of the X-ray flaw detector of claim 1, characterized in that: the bracket (5) is two vertical plates which are perpendicular to the fixing plate (3), and an X flaw detector is fixedly arranged in the middle of the bracket.

7. The fixed rotary tool of the X-ray flaw detector of claim 1, characterized in that: the U-shaped pipe clamp (2) is provided with a hand wheel (4) which is positioned below the fixing plate (3).

8. The fixed rotary tool of the X-ray flaw detector of claim 7, wherein: the hand wheel (4) is connected with the U-shaped pipe clamp (2) through threads.

9. The fixed rotary tool of the X-ray flaw detector of claim 1, characterized in that: and mounting holes are respectively formed in two ends of the fixing plate (3).