CN208125646U - A kind of nuclear power station valve attachment weld ray detection and location device - Google Patents
A kind of nuclear power station valve attachment weld ray detection and location device Download PDFInfo
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- CN208125646U CN208125646U CN201820600934.2U CN201820600934U CN208125646U CN 208125646 U CN208125646 U CN 208125646U CN 201820600934 U CN201820600934 U CN 201820600934U CN 208125646 U CN208125646 U CN 208125646U
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Abstract
This application involves a kind of technical fields of million kilowatt nuclear power station apparatus for examination and repair, disclose a kind of nuclear power station valve attachment weld ray detection and location device, including mounting blocks and conduit, the mounting blocks are for being fixedly connected on valve；One end of the conduit is threaded through on the mounting blocks, and the other end is used to extend to the Weld pipe mill shaft position of valve downstream side, and the other end is equipped with the necking for positioning the preposition stem pipe source portion of clamping source machine.The radiographic inspection of valve attachment weld is carried out using the nuclear power station valve attachment weld ray detection and location device of the application; it realizes and center transillumination is become by double-walled shadow transillumination; to make the transmiting time of radiographic inspection become from 6 times 1 time; personnel's pieces of cloth number also becomes 1 time from 6 times; effectively shorten the sensitivity of film time; single welding inspection was shorten to 15 minutes or so by about 5 hours; radiation suffered by inspection personnel is greatly reduced, physical and mental health and the effect very positive to environment generation to inspection personnel.
Description
Technical field
The present invention relates to a kind of technical fields of million kilowatt nuclear power station apparatus for examination and repair, and in particular to a kind of nuclear power station
Valve attachment weld ray detection and location device.
Background technique
According to the requirement of nuclear power station coherence check specification, it is necessary to nuclear power station valve attachment weld is regularly checked,
To guarantee the sealing state of weld seam to prevent from revealing.In the prior art, for nuclear power station valve attachment weld, especially 14 English
The attachment weld of very little valve, original radioscopy technology can only use the shadow inspection of double-walled list, need to expose 6 times, inspection personnel
Need to enter scene 6 times and carry out pieces of cloth operation, and nuclear power site environment dose of radiation is high, this result in inspection personnel need by
A large amount of radiation irradiations；Each about 50 minutes time for exposure, only single welding inspection time about 5 hours, the time for exposure is very long, is easy
Increase overhaul maintenance duration.
Summary of the invention
The application provides a kind of nuclear power station valve attachment weld ray detection and location device.
To achieve the goals above, the application uses following technical scheme：
The application provides a kind of nuclear power station valve attachment weld ray detection and location device, including mounting blocks and conduit, peace
Dress block is for being fixedly connected on valve；One end of conduit is threaded through on the mounting blocks, and the other end is for extending under valve
The Weld pipe mill shaft position of side is swum, and the other end is equipped with the necking for positioning the preposition stem pipe source portion of clamping source machine.
Further, nuclear power station valve attachment weld ray detection and location device further includes fixed connection apparatus, fixed to connect
Connection device is for being fixedly connected with the mounting blocks and valve.
Further, fixed connection apparatus be mounted on valve and with the matched buckle structure of mounting blocks.
Further, mounting blocks are equipped with the first mounting hole for installing conduit and for installed on the valve second
Mounting hole.
Further, the first mounting hole is located at the center of mounting blocks.
Further, it there are three the second mounting hole tools, is evenly distributed on a circumference, and corresponding with the mounting hole of valve
Setting.
Further, mounting blocks include three mounting bars for being mutually 120 °, and the middle part at three mounting bar docking is equipped with the
One mounting hole, each mounting bar is opposite to be equipped with second mounting hole with the other end for docking place.
Further, fixed connection apparatus is screw or bolt.
Further, one end of conduit is threadedly coupled with the first mounting hole of the mounting blocks.
Further, conduit is vertical bending structure, and has certain radian in bending part.
Due to using the technology described above, the beneficial effects of the present application are as follows：
The ray of valve attachment weld is carried out using the nuclear power station valve attachment weld ray detection and location device of the application
Flaw detection especially carries out unhappy attachment weld radiographic inspection to 14 inches of valve, realizes that become center by double-walled shadow transillumination saturating
According to so that the transmiting time of radiographic inspection be made to become from 6 times 1 time, personnel's pieces of cloth number also becomes 1 time from 6 times, effectively shortens and penetrates
Line transillumination time, single welding inspection were shorten to 15 minutes or so by about 5 hours, greatly reduced spoke suffered by inspection personnel
It penetrates, physical and mental health and the effect very positive to environment generation to inspection personnel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of nuclear power station valve attachment weld ray detection and location device；
Fig. 2 is a kind of side view of nuclear power station valve attachment weld ray detection and location device；
Fig. 3 is a kind of top view of nuclear power station valve attachment weld ray detection and location device；
Fig. 4 is to carry out valve attachment weld using the nuclear power station valve attachment weld ray detection and location device of embodiment 1
Radiological survey X radioactive source exposes schematic diagram.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
It as shown in Figures 1 to 3, is the first specific embodiment party of nuclear power station valve attachment weld ray detection and location device
Formula, the nuclear power station valve attachment weld ray detection and location device, including mounting blocks 010 and conduit 020, mounting blocks 010 are used for
It is fixedly connected on valve；One end of conduit 020 is threaded through on the mounting blocks 010, and the other end is for extending to valve downstream
The Weld pipe mill shaft position of side, and the other end (for extending to the end of the Weld pipe mill shaft position of valve downstream side) is equipped with
For positioning the necking 021 in the preposition stem pipe source portion of clamping source machine.
Nuclear power station valve attachment weld ray detection and location device further includes fixed connection apparatus, and fixed connection apparatus is used for
It is fixedly connected with the mounting blocks 010 and valve.In the present embodiment, fixed connection apparatus is the spiral shell being arranged on valve to be detected
The mounting hole for being fixedly connected with valve of setting on bolt, with the matched nut of bolt and mounting blocks 010.In the present embodiment, peace
Dress block 010 is equipped with the first mounting hole 012 for installing conduit and is used for the second mounting hole 011 installed on the valve.
In present embodiment, when mounting blocks 010 are fixedly mounted on valve, by the second mounting hole 011 on mounting blocks
It covers on the bolt being arranged on valve, then the nut to match with bolt is tightened with bolt, make mounting blocks 010 solid with this
Surely it is connected on valve.
In other embodiments, fixed connection apparatus be mounted on valve and with the matched buckle structure of mounting blocks.
One preferred embodiment, the first mounting hole 012 are located at the center of mounting blocks, and mounting blocks 010 are fixed with valve
When connection, the first mounting hole 012 of mounting blocks 010 is just fallen on the center of valve.
In another preferred embodiment, there are three the second mounting hole 011 tools, is evenly distributed on a circumference, and with
The mounting hole of valve is correspondingly arranged, i.e., is provided with 3 corresponding bolts on valve, mounting blocks 010 are fixedly mounted on valve
When, 3 the second mounting holes 011 on mounting blocks are respectively fitted on 3 bolts being arranged on valve, then will be with bolt phase
The nut matched is tightened with bolt, with this mounting blocks 010 is fixedly connected on valve.
In another preferred embodiment, mounting blocks include three mounting bars for being mutually 120 °, at 3 mounting bar docking
Middle part is equipped with the first mounting hole 012, and each mounting bar is opposite to be equipped with second mounting hole 011 with the other end for docking place, the
One mounting hole 012 is the center of mounting blocks, and the second mounting hole 011 that 3 the second mounting holes are located at 3 mounting bars is fallen
On the circumference using the center of the first mounting hole 012 as the center of circle.
In present embodiment, fixed connection apparatus is screw or bolt, and corresponding device is that setting is being pacified on mounting blocks 010
Fill the second mounting hole 011 on block 010.
In present embodiment, one end of conduit 020 is threadedly coupled with the first mounting hole 012 of mounting blocks 010.
In other embodiments, one end of conduit 020 and the first mounting hole 012 of mounting blocks 010 can also snap connection
Or other modes connection.
In present embodiment, conduit is vertical bending structure 022, and has certain radian, the bending knot in bending part
Structure, which can be realized, carries out radiological survey X to the downstream connection weld seam of right angle pipeline.
In other embodiments, conduit can also be linear structure or the structure in other angles, be met with this to straight tube
The pipeline of pipeline, right angle pipeline or other different angles is attached welding seam ray detection positioning.
Embodiment 1
As shown in Figures 1 to 4, the nuclear power station valve attachment weld ray detection and location device, including mounting blocks 010 and lead
Pipe 020, mounting blocks 010 are for being fixedly connected on valve；One end of conduit 020 is threaded through on the mounting blocks 010, the other end
For extending to valve downstream side weld cental axial position, and the other end is equipped with for positioning the preposition stem Guan Yuan of clamping source machine
The necking 021 on head.Fixed connection apparatus is the bolt arrangement being arranged on valve and the second peace being arranged on mounting blocks 010
Hole 011 is filled, the second mounting hole 011 has 3, is separately positioned on three mounting bars, 3 mounting bars are mutually hexagonal angle and fall
On the circumference using the center of the first mounting hole 012 as the center of circle.The bolt one that second mounting hole 011 and valve are equipped with is a pair of
It answers, i.e., is provided with 3 corresponding bolts 033 on valve.When mounting blocks 010 are fixedly mounted on valve, by 3 on mounting blocks
Second mounting hole 011 is respectively fitted on 3 bolts being arranged on valve, then the nut to match with bolt is twisted with bolt
Tightly, with this mounting blocks 010 are fixedly connected on valve.
As shown in figure 4, the pipeline 030 of pending valve attachment weld radiological survey X be T font structure, valve with it is to be checked
Downstream weld seam 032 it is in 90 °, conduit 020 be vertical curve structure, bending part 022 have certain radian, conduit 020
Necking end 021 is placed exactly in the center position of 032 ring of weld seam to be checked, allow the necking end 021 of conduit 020 with it is to be checked
032 ring of weld seam center position deviation be positive and negative 3mm.
As shown in figure 4, the valve 031 is 14 inches of valve when carrying out the valve attachment weld radiological survey X of pipeline 030
Door.3 the second mounting holes of mounting hole 010 are respectively fitted on the bolt 033 that valve 031 is arranged in, nut and spiral shell are then used
Bolt, which is tightened, is fixedly mounted block 010, and one section of conduit 020 is threadedly coupled with the first mounting hole 012 of mounting blocks 010, other end contracting
Mouth end 021 extends to weld seam 032 location mid-shaft in downstream to be detected, and mounting hole 010, the valve of conduit 020 and 031 install,
Implement radiological survey X, the conduit that the preposition stem pipe of source machine is threadedly coupled from the first mounting hole 012 of mounting blocks 010 is inserted into,
When preposition stem pipe can not be inserted into, i.e. the preposition stem pipe source position of expression source machine reaches the conduit 020 of positioning device
Necking 021 at B, tolerance be positive and negative 3mm, may insure at this time radiographic inspection exposure when radioactive source be in weld seam to be detected
032 center.After radiological survey X starts, radioactive source is shaken out, center exposure is primary, and one side weld of valve can be completed
Radiological survey X.
Center transillumination can be become by double-walled shadow transillumination by carrying out detection using the positioning device of the present embodiment, to make ray
The transmiting time of flaw detection becomes 1 time from 6 times, and personnel's pieces of cloth number also becomes 1 time from 6 times, effectively shortens the sensitivity of film time, single
Welding inspection was shorten to 15 minutes or so by about 5 hours, radiation suffered by inspection personnel was greatly reduced, to inspection personnel's
Physically and mentally healthy and very positive to environment generation effect.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (10)
1. a kind of nuclear power station valve attachment weld ray detection and location device, which is characterized in that described including mounting blocks and conduit
Mounting blocks are for being fixedly connected on valve；One end of the conduit is threaded through on the mounting blocks, and the other end is for extending to
The Weld pipe mill shaft position of the valve downstream side, and the other end is equipped with for positioning the preposition stem pipe source portion of clamping source machine
Necking.
2. device as described in claim 1, which is characterized in that further include fixed connection apparatus, the fixed connection apparatus is used
In being fixedly connected with the mounting blocks and valve.
3. device as claimed in claim 2, which is characterized in that the fixed connection apparatus be mounted on the valve and with
The matched buckle structure of mounting blocks.
4. device as claimed in claim 1 or 2, which is characterized in that the mounting blocks are equipped with for installing the conduit
First mounting hole and be used for the second mounting hole installed on the valve.
5. device as claimed in claim 4, which is characterized in that first mounting hole is located at the center of mounting blocks.
6. device as claimed in claim 5, which is characterized in that there are three the second mounting hole tools, is evenly distributed on one
On circumference, and it is correspondingly arranged with the mounting hole of valve.
7. device as claimed in claim 6, which is characterized in that the mounting blocks include three mounting bars for being mutually 120 °, and three
Middle part at a mounting bar docking is equipped with first mounting hole, and each mounting bar is opposite with the other end for docking place
Equipped with second mounting hole.
8. device as claimed in claim 7, which is characterized in that the fixed connection apparatus is screw or bolt.
9. device as claimed in claim 4, which is characterized in that first mounting hole of one end of the conduit and the mounting blocks
It is threadedly coupled.
10. device as described in claim 1, which is characterized in that the conduit is vertical bending structure, and is had in bending part
Certain radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820600934.2U CN208125646U (en) | 2018-04-25 | 2018-04-25 | A kind of nuclear power station valve attachment weld ray detection and location device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820600934.2U CN208125646U (en) | 2018-04-25 | 2018-04-25 | A kind of nuclear power station valve attachment weld ray detection and location device |
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| CN208125646U true CN208125646U (en) | 2018-11-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303436A (en) * | 2018-01-03 | 2018-07-20 | 中广核检测技术有限公司 | A kind of ray detection tooling of the main pump suitable for nuclear power generating sets |
| CN112489837A (en) * | 2020-11-27 | 2021-03-12 | 中广核检测技术有限公司 | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism |
| CN112730467A (en) * | 2020-12-22 | 2021-04-30 | 福建福清核电有限公司 | Central method radiographic inspection positioning method |
| CN114076775A (en) * | 2021-11-15 | 2022-02-22 | 国核示范电站有限责任公司 | Pipeline welding seam radiographic inspection geometric unsharpness control process |
-
2018
- 2018-04-25 CN CN201820600934.2U patent/CN208125646U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303436A (en) * | 2018-01-03 | 2018-07-20 | 中广核检测技术有限公司 | A kind of ray detection tooling of the main pump suitable for nuclear power generating sets |
| CN112489837A (en) * | 2020-11-27 | 2021-03-12 | 中广核检测技术有限公司 | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism |
| CN112489837B (en) * | 2020-11-27 | 2024-04-02 | 中广核检测技术有限公司 | Sheet distributing device and method for in-service inspection of claw gaskets of control rod driving mechanism |
| CN112730467A (en) * | 2020-12-22 | 2021-04-30 | 福建福清核电有限公司 | Central method radiographic inspection positioning method |
| CN114076775A (en) * | 2021-11-15 | 2022-02-22 | 国核示范电站有限责任公司 | Pipeline welding seam radiographic inspection geometric unsharpness control process |
| CN114076775B (en) * | 2021-11-15 | 2024-04-23 | 国核示范电站有限责任公司 | Pipeline weld joint ray detection geometric unclear control process |
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