CN209239313U - Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block - Google Patents
Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block Download PDFInfo
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- CN209239313U CN209239313U CN201821500761.3U CN201821500761U CN209239313U CN 209239313 U CN209239313 U CN 209239313U CN 201821500761 U CN201821500761 U CN 201821500761U CN 209239313 U CN209239313 U CN 209239313U
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Abstract
The utility model belongs to Nuclear Power Station's Exhausted Fuels transmission technique field, comparison test block is welded more particularly to heavy water reactor spentnuclear fuel basket shroud RB-C2#, purpose is to develop a set of heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block, to ensure to verify fuel-basket shroud welding quality, to ensure the leakproofness of spentnuclear fuel basket, it effectively prevent escape of radioactivity.It is characterized by: its generally arc plate, inner sidewall and lateral wall are arcwall face, upper surface and lower end surface are horizontal plane, and left side and right side are vertical plane；Left part in test block upper surface offers a detection hole along the vertical direction, for simulating defect present in weld seam.Heavy water reactor spentnuclear fuel basket shroud RB-C2# described in the utility model welds comparison test block, and securely and reliably, easy to use, stability is strong, high financial profit, it is ensured that fuel-basket shroud welding quality, avoiding the butt weld of fuel-basket shroud, there are problems of welded quality.
Description
Technical field
The utility model belongs to Nuclear Power Station's Exhausted Fuels transmission technique field, and in particular to heavy water reactor spentnuclear fuel basket shroud RB-
C2# welds comparison test block.
Background technique
The interim dry storage of spentnuclear fuel is Qinshan Phase II NPP new projects, and wherein spentnuclear fuel basket is dry inventory item capital equipment,
It is directly used in loading spentnuclear fuel, and structure is circle, and material is stainless steel, its crucial road You Ji weld seam is especially important, fuel
The welding process requirement level of basket shroud weld seam and lid weld seam etc., these weld seams is higher, and is multilayer weld, in order to verify these
The quality of weld seam devises heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block thus, that is, is examined by ultrasonic wave
Head is nosed into, the inspection result of heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block is recorded, with manufacturing firm
Spentnuclear fuel basket shroud inspection record is compared, and if comparison result is lower than test block, just illustrates that manufacturing firm's welding quality exists and asks
Topic, to ensure its welding quality.
Utility model content
The purpose of this utility model is that a set of heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block is developed,
Escape of radioactivity is effectively prevent to ensure to verify fuel-basket shroud welding quality to ensure the leakproofness of spentnuclear fuel basket.
The utility model is realized in this way:
A kind of heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block, generally arc plate, inner sidewall and outside
Wall is arcwall face, and upper surface and lower end surface are horizontal plane, and left side and right side are vertical plane；Left part in test block upper surface
A detection hole is offered along the vertical direction, for simulating defect present in weld seam.
Test block entire length is 150mm, is highly 40mm, outer arc radius 57mm, inner arc radius 45mm；Detection
Hole is through-hole, and diameter 1.5mm, detection hole and external arc end face distance are 8mm, and distance of the detection hole apart from test block left side is
60mm。
Right part etching and processing in test block upper surface identifies, and word depth 0.2mm etches position pigment coloration.
Test block integrally uses 022Cr19Ni10 type stainless steel material to be made.
The beneficial effects of the utility model are:
Heavy water reactor spentnuclear fuel basket shroud RB-C2# described in the utility model welds comparison test block, securely and reliably, uses
Convenient, stability is strong, high financial profit, it is ensured that fuel-basket shroud welding quality avoids fuel-basket shroud butt weld from there is weldering
Quality problems are connect, such as are welded not firm.The wave that comparison test block is detected is welded by heavy water reactor spentnuclear fuel basket shroud RB-C1#
Shape is compared with fuel-basket shroud medial surface welding position, welding quality on the inside of effective guarantee fuel-basket shroud, it is ensured that
The welding of fuel-basket shroud medial surface weld seam is intact.It can be with the welding quality of effective guarantee fuel-basket shroud.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block of the utility model；
Fig. 2 is the main view of the heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block of the utility model；
Fig. 3 is the left view of the heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block of the utility model；
Fig. 4 is the top view of the heavy water reactor spentnuclear fuel basket shroud RB-C2# welding comparison test block of the utility model；
Wherein: A. cross joint, C. circumferential weld.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples.
As shown in Figures 1 to 4, a kind of heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block, generally arc panel
Shape, inner sidewall and lateral wall are arcwall face, and upper surface and lower end surface are horizontal plane, and left side and right side are vertical plane.?
The left part of test block upper surface offers a detection hole along the vertical direction, for simulating defect present in weld seam.
Test block entire length is 150mm, is highly 40mm, outer arc radius 57mm, inner arc radius 45mm.Detection
Hole is through-hole, and diameter 1.5mm, detection hole and external arc end face distance are 8mm, and distance of the detection hole apart from test block left side is
60mm。
Right part etching and processing in test block upper surface identifies, and word depth 0.2mm etches position pigment coloration.
In the present embodiment, test block integrally uses 022Cr19Ni10 type stainless steel material to be made.
The application method of the utility model is as follows:
1. the probe using ultrasonic nondestructive testing device is scanned test block, records institute's detection waveform and store to super
Sound wave non-destructive testing device；
2. the probe of ultrasonic nondestructive testing device is placed in outside fuel-basket shroud at cross joint A, inside is moved up and down,
And be compared with the test block detection waveform of storage, if the detection waveform amplitude at cross joint A is greater than test block detection waveform
Amplitude then illustrates that there are problems for weldquality herein, need to further do PT penetration inspection, detects venthole position and carry out corresponding
Repair welding.
3. carrying out Ultrasonic Nondestructive again after the completion of repair welding, examined using the probe of ultrasonic nondestructive testing device
It looks into, and is compared with the test block detection waveform of storage, be less than test block detection wave as detected the detection waveform amplitude at cross joint A again
The amplitude of shape then illustrates this weld seam no problem, meets welding requirements.As detected the detection waveform amplitude at cross joint A again still
Greater than the amplitude of test block detection waveform, then illustrate that this weld seam problem still remains, needs to carry out repair welding until meeting the requirements.
4. the probe of ultrasonic nondestructive testing device is placed at fuel-basket shroud exterior circumference weld seam C inside, pop one's head in into
Row circular motion is simultaneously compared with the test block detection waveform of storage, if the detection waveform amplitude at circumferential weld C is greater than examination
The amplitude of block detection waveform then illustrates that there are problems for weldquality herein, need to further do PT penetration inspection, detect venthole position
It sets and carries out corresponding repair welding.
5. carrying out Ultrasonic Nondestructive again after the completion of repair welding, examined using the probe of ultrasonic nondestructive testing device
It looks into, and is compared with the test block detection waveform of storage, detected as detected the detection waveform amplitude at circumferential weld C again less than test block
The amplitude of waveform then illustrates this weld seam no problem, meets welding requirements.As detected the detection waveform vibration at circumferential weld C again
Width is still greater than the amplitude of test block detection waveform, then illustrates that this weld seam problem still remains, and needs to carry out repair welding until meeting the requirements.
The above is only the preferred embodiment of the utility model, is illustrated herein: the side based on the utility model principle
Method is improved and structural adjustment, all will be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block, it is characterised in that: its generally arc plate, it is interior
Side wall and lateral wall are arcwall face, and upper surface and lower end surface are horizontal plane, and left side and right side are vertical plane；In test block
The left part of end face offers a detection hole along the vertical direction, for simulating defect present in weld seam.
2. heavy water reactor spentnuclear fuel basket shroud RB-C2# according to claim 1 welds comparison test block, it is characterised in that: test block
Entire length is 150mm, is highly 40mm, outer arc radius 57mm, inner arc radius 45mm；Detection hole is through-hole, directly
Diameter is 1.5mm, and detection hole and external arc end face distance are 8mm, and distance of the detection hole apart from test block left side is 60mm.
3. heavy water reactor spentnuclear fuel basket shroud RB-C2# according to claim 1 welds comparison test block, it is characterised in that: trying
The right part etching and processing of block upper surface identifies, word depth 0.2mm, etches position pigment coloration.
4. heavy water reactor spentnuclear fuel basket shroud RB-C2# according to claim 1 welds comparison test block, it is characterised in that: test block
It is whole to be made of 022Cr19Ni10 type stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500761.3U CN209239313U (en) | 2018-09-14 | 2018-09-14 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500761.3U CN209239313U (en) | 2018-09-14 | 2018-09-14 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
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| Publication Number | Publication Date |
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| CN209239313U true CN209239313U (en) | 2019-08-13 |
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| CN201821500761.3U Active CN209239313U (en) | 2018-09-14 | 2018-09-14 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317854A (en) * | 2018-09-14 | 2019-02-12 | 中核核电运行管理有限公司 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
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2018
- 2018-09-14 CN CN201821500761.3U patent/CN209239313U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317854A (en) * | 2018-09-14 | 2019-02-12 | 中核核电运行管理有限公司 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
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