CN104654980A - Tool used for assisting in weld joint deflection measurement of control rod driving mechanism in nuclear power station - Google Patents
Tool used for assisting in weld joint deflection measurement of control rod driving mechanism in nuclear power station Download PDFInfo
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- CN104654980A CN104654980A CN201410817536.2A CN201410817536A CN104654980A CN 104654980 A CN104654980 A CN 104654980A CN 201410817536 A CN201410817536 A CN 201410817536A CN 104654980 A CN104654980 A CN 104654980A
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- control rod
- weld seam
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- play amount
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Abstract
The invention belongs to the technical field of metal welding, aims to solve the problems of larger measured deflection and lower efficiency of upward offset or downward offset of a weld joint, and provides a tool used for assisting in weld joint deflection measurement of a control rod driving mechanism in a nuclear power station. The tool comprises a body, wherein a bulge is arranged on one side surface of the body; a positioning plate is arranged on the side, far away from the body, of the bulge; the distance between the lower edge of the positioning plate and the upper surface of the bulge is equal to that between the lower edge of a groove between two pipelines and the shoulder of an upper pipeline; the distance between the upper edge of the positioning plate and the upper surface of the bulge is equal to that between the upper edge of the groove between the two pipelines and the shoulder of the upper pipeline. The tool has the advantages that the measured deflection of upward offset or downward offset of the weld joint is reduced; the measuring efficiency is improved.
Description
Technical field
The invention belongs to the technical field of metal solder, be specifically related to a kind of instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion.
Background technology
After nuclear power station control rod drive mechanisms (CRD) (control rod drive mechanism, hereinafter referred to as CRDM) has been welded, need to measure the upper side-play amount of weld seam and lower side-play amount, to check whether weld seam meets welding requirements.Fig. 1 is the schematic front view that nuclear power station CRDM has welded rear weld seam, and as shown in Figure 1, CRDM comprises pipeline 10 and lower pipeline 11, and the width A of the groove 13 between upper pipeline 10 and lower pipeline 11 is 1.3 millimeters; The upper side-play amount b of the weld seam of upper pipeline 10 and lower pipeline 11 refers to that the distance of lower limb 15 to the coboundary of groove 13 of weld seam, the lower side-play amount b ' of weld seam refer to the distance of coboundary 14 to the lower limb of groove 13 of weld seam.Lower limb 15 and the coboundary 14 of the weld seam shown in Fig. 1 are straight line, owing to there is error in actual welding process, so be wave in the lower limb 15 of weld seam and coboundary 14 reality, when measuring the upper side-play amount b of weld seam and lower side-play amount b ', get several points on the lower limb 15 of weld seam, measure draw these several point upper side-play amount b, on top edge 14 is got several points, measure these several point lower side-play amount b ', if measure the maximal value of upper side-play amount b and the lower side-play amount b ' drawn all in the scope of welding requirements, then weld seam meets welding requirements, otherwise weld seam does not meet welding requirements.
As shown in Figure 1, the measurement upper side-play amount b of weld seam and the method for lower side-play amount b ' are at present: the first step, use adhesive tape or binding strap to be fixed on by assistance platform 16 on lower pipeline 11; Second step, the lower limb 15 of weld seam is got a point, then uses this point of vernier caliper measurement to the distance H1 of assistance platform 16, re-uses the distance H2 of shoulder 12 to assistance platform 16 of pipeline 10 on vernier caliper measurement; Shoulder 12 is H3 to the distance of the coboundary of groove 13, and shoulder 12 is H4, H3 and H4 to the distance of the lower limb of groove 13 is all known data; 3rd step, the data that operating personnel measure according to second step and known data, calculate upper side-play amount b, the b=H2-H1-H3 of weld seam; When measuring the lower side-play amount b ' of weld seam, make to use the same method, also need to measure point on the coboundary 14 of weld seam to the distance H5 of assistance platform 16, then calculate lower side-play amount b ', the b of weld seam '=H4-(H2-H5).But assistance platform 16 is fixed on lower pipeline 11 by adhesive tape or binding strap, and adhesive tape and binding strap itself have certain flexibility, can not firmly fix assistance platform 16, therefore easily there is change in location in assistance platform 16, cause the shoulder 12 measured to be clipped to the range deviation of assistance platform 16 comparatively greatly to the coboundary 14 of the distance of assistance platform 16, weld seam and lower limb 15 points, finally cause the upper side-play amount b of the weld seam drawn and lower side-play amount b ' deviation larger; And on measurement weld seam during the point of diverse location, also need to use adhesive tape or binding strap to retighten the position of assistance platform 16, the time expended is longer, and work efficiency is lower.
Summary of the invention
The comparatively large and problem that efficiency is lower of surveying work deviation in order to the upper side-play amount and lower side-play amount that solve nuclear power station control rod drive mechanisms (CRD) weld seam, the present invention proposes a kind of instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion, with the measured deviation of the upper side-play amount and lower side-play amount that reduce weld seam, improve the efficiency of the upper side-play amount of weld seam and the surveying work of lower side-play amount.
Instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion of the present invention comprises body, the side of this body is provided with projection, the upper surface of described projection is plane, the side that described projection deviates from described body is provided with spacer, and the lower limb of this spacer is equal to the distance of the shoulder of upper pipeline to the lower limb of the groove between the distance and two pipelines of the control rod drive mechanisms (CRD) of welding of the upper surface of described projection; The coboundary of described spacer is equal to the distance of the shoulder of upper pipeline to the coboundary of the groove between the distance and two pipelines of the control rod drive mechanisms (CRD) of welding of the upper surface of described projection.
Wherein, the side that described body is provided with projection is also provided with back up pad, and described back up pad is positioned at described underbump, and when using described instrument, after the upper surface of described projection props up the shoulder of pipeline, the free end of described back up pad can prop up lower pipeline.
Wherein, described body is the structure of cuboid.
Wherein, described projection is the structure of cuboid.
Wherein, described projection is concave character type structure.
Instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion of the present invention has following beneficial effect:
1. measure the upper side-play amount of weld seam and the method for lower side-play amount by assistance platform in prior art and there is two problems, one is that the result error measured is comparatively large, and two is that work efficiency is lower.And when using instrument of the present invention to measure the upper side-play amount of weld seam and lower side-play amount, firm for instrument of the present invention can snap on pipeline by operating personnel, reduces the upper side-play amount of weld seam and the measured deviation of lower side-play amount; Mobile instrument of the present invention, makes spacer respectively facing to several points on the coboundary of weld seam, just can measure the lower side-play amount b ' at these several spotwelds respectively; Mobile instrument of the present invention, make spacer respectively facing to several points on the lower limb of weld seam, just can measure the upper side-play amount b at these several spotwelds respectively, operating personnel can carry out multimetering easily; And the lower limb of spacer directly measuring instrument of the present invention just obtains the lower side-play amount b ' of weld seam to the distance of the coboundary of weld seam, the coboundary measuring spacer of the present invention just obtains the upper side-play amount b of weld seam to the distance of the lower limb of weld seam, do not need to calculate again, simple to operate, reduce the labour intensity of operating personnel, having saved is the time, improves work efficiency.
2. use instrument of the present invention to measure the upper side-play amount of weld seam and lower side-play amount, no longer need by assistance platform, avoid the generation being fixed on by assistance platform and pipeline producing situation about damaging to pipeline.
Accompanying drawing explanation
Fig. 1 is the schematic front view that nuclear power station CRDM has welded rear weld seam;
Fig. 2 is the schematic front view of the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion of the present invention;
Fig. 3 is the schematic front view of a kind of preferred structure of the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion of the present invention;
Fig. 4 is the using state figure of the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion shown in Fig. 2.
Embodiment
Instrument of the present invention is introduced below in conjunction with Fig. 1-Fig. 4.
As depicted in figs. 1 and 2, instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion of the present invention comprises body 20, body 20 is the structure of cuboid, the side of body 20 is provided with projection 21, projection 21 is the structure of cuboid, the side deviating from body 20 of projection 21 is provided with spacer 22, the lower limb of this spacer 22 is equal to the distance of the shoulder 12 of upper pipeline 10 with the lower limb of groove 13 to the distance M of the upper surface of projection 21, the coboundary of spacer 22 is equal to the distance of the shoulder 12 of upper pipeline 10 with the coboundary of groove 13 to the distance N of the upper surface of projection 21.The side that body 20 is provided with projection 21 is also provided with back up pad 23, and back up pad 23 is positioned at the below of projection 21, and when using instrument of the present invention, after the upper surface of projection 21 props up the shoulder of pipeline 10, the free end of back up pad 23 can prop up lower pipeline 11.
As shown in Figure 3, the projection 21 of instrument of the present invention is concave character type structure, can save the material making projection 21 and use like this.
Because the lower limb of spacer 22 is equal to the distance of the shoulder 12 of upper pipeline 10 with the lower limb of groove 13 to the distance M of the upper surface of projection 21, the coboundary of spacer 22 is equal to the distance of the shoulder 12 of upper pipeline 10 with the coboundary of groove 13 to the distance N of the upper surface of projection 21, so after the projection 21 of instrument of the present invention being propped up the shoulder 12 of upper pipeline 10, the coboundary of spacer 22 and lower limb are just in time facing to coboundary and the lower limb of groove 13; The distance of lower limb 15 to the coboundary of groove 13 of weld seam is referred to according to the upper side-play amount b of weld seam, the lower side-play amount b ' of weld seam refers to the distance of coboundary 14 to the lower limb of groove 13 of weld seam, so the lower limb of spacer 22 of the present invention is to the distance of the coboundary 14 of weld seam, be exactly the lower side-play amount b ' of weld seam, the coboundary of spacer 22, to the distance of the lower limb 15 of weld seam, is exactly the upper side-play amount b of weld seam.
As shown in Figure 4, the using method of instrument of the present invention, the first step, the coboundary 14 of weld seam is got 1 D, the lower limb 15 of weld seam is got 1 E, the upper surface of the projection 21 of instrument of the present invention is propped up the shoulder 12 of upper pipeline 10 by operating personnel, and make spacer 22 facing to some D, back up pad 23 props up lower pipeline 11 simultaneously, and the effect of back up pad 23 makes the more convenient shoulder 12 projection 21 being propped up upper pipeline 10 of operating personnel, operates more laborsaving; Second step, uses the lower limb of vernier caliper measurement spacer 22 to the distance of some D, just obtains the lower side-play amount b ' at a D weld seam; 3rd step, mobile instrument of the present invention, make spacer 22 facing to some E, use the coboundary of vernier caliper measurement spacer 22 to the distance of some E, just obtain the upper side-play amount b at an E weld seam, wherein, if fruit dot D and some E is on a straight line with the axis being parallel of lower pipeline 11, just do not need mobile instrument of the present invention when performing this step, the coboundary of direct measurement and positioning sheet 22, to the distance of some E, just obtains the upper side-play amount b at an E weld seam; 4th step, the coboundary 14 of weld seam is got several points, the lower limb 15 of weld seam is got several points, repeat the lower side-play amount b ' that above-mentioned steps measures several spotwelds on top edge 14 respectively, the upper side-play amount b of several spotwelds on lower limb 15 is measured respectively by above-mentioned steps, if wherein maximum upper side-play amount b and lower side-play amount b ', in the scope of welding requirements, illustrate that weld seam meets welding requirements, otherwise weld seam does not meet welding requirements.
When using instrument of the present invention to measure the upper side-play amount of weld seam and lower side-play amount, firm for instrument of the present invention can snap on pipeline by operating personnel, reduces the upper side-play amount of weld seam and the measured deviation of lower side-play amount; Mobile instrument of the present invention, makes spacer 22 respectively facing to several points on the coboundary 14 of weld seam, just can measure the lower side-play amount b ' at these several spotwelds respectively; Mobile instrument of the present invention, make spacer 22 respectively facing to several points on the lower limb 15 of weld seam, just can measure the upper side-play amount b at these several spotwelds respectively, operating personnel can carry out multimetering easily; And the lower limb of spacer directly measuring instrument of the present invention just obtains the lower side-play amount b ' of weld seam to the distance of the coboundary of weld seam, the coboundary measuring spacer of the present invention just obtains the upper side-play amount b of weld seam to the distance of the lower limb of weld seam, do not need to calculate again, simple to operate, reduce the labour intensity of operating personnel, having saved is the time, improves work efficiency.
Claims (5)
1. the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion, it is characterized in that, comprise body, the side of this body is provided with projection, the upper surface of described projection is plane, the side that described projection deviates from described body is provided with spacer, and the lower limb of this spacer is equal to the distance of the shoulder of upper pipeline to the lower limb of the groove between the distance and two pipelines of the control rod drive mechanisms (CRD) of welding of the upper surface of described projection; The coboundary of described spacer is equal to the distance of the shoulder of upper pipeline to the coboundary of the groove between the distance and two pipelines of the control rod drive mechanisms (CRD) of welding of the upper surface of described projection.
2. the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion according to claim 2, it is characterized in that, the side that described body is provided with projection is also provided with back up pad, described back up pad is positioned at described underbump, when using described instrument, after the upper surface of described projection props up the shoulder of pipeline, the free end of described back up pad can prop up lower pipeline.
3. the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion according to claim 1 and 2, is characterized in that, described body is the structure of cuboid.
4. the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion according to claim 1 and 2, is characterized in that, described projection is the structure of cuboid.
5. the instrument for subsidiary nuclear power station control rod drive mechanisms (CRD) weld excursion according to claim 1 and 2, is characterized in that, described projection is concave character type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817536.2A CN104654980B (en) | 2014-12-24 | 2014-12-24 | A kind of tool for subsidiary nuclear power station control rod drive mechanism weld excursion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817536.2A CN104654980B (en) | 2014-12-24 | 2014-12-24 | A kind of tool for subsidiary nuclear power station control rod drive mechanism weld excursion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104654980A true CN104654980A (en) | 2015-05-27 |
| CN104654980B CN104654980B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410817536.2A Active CN104654980B (en) | 2014-12-24 | 2014-12-24 | A kind of tool for subsidiary nuclear power station control rod drive mechanism weld excursion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199421A (en) * | 2017-04-14 | 2017-09-26 | 苏州热工研究院有限公司 | A kind of combined type weld groove detection ruler |
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| JP2009085856A (en) * | 2007-10-02 | 2009-04-23 | Mazda Motor Corp | Method and device for measuring metal plate clearance using spot welding device |
| CN101762637A (en) * | 2008-12-24 | 2010-06-30 | 中核武汉核电运行技术股份有限公司 | Probe swinging mechanism for performing ultrasonic detection on omega welding line of control bar driving mechanism |
| CN202041155U (en) * | 2011-03-29 | 2011-11-16 | 山东省特种设备检验研究院滨州分院 | Weld joint inspection ruler |
| CN203286955U (en) * | 2013-05-31 | 2013-11-13 | 贵州詹阳动力重工有限公司 | Tool for measuring welded seam |
| CN203422055U (en) * | 2013-05-17 | 2014-02-05 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Monitoring device for pipe butt welding deformation |
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2014
- 2014-12-24 CN CN201410817536.2A patent/CN104654980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085856A (en) * | 2007-10-02 | 2009-04-23 | Mazda Motor Corp | Method and device for measuring metal plate clearance using spot welding device |
| CN101762637A (en) * | 2008-12-24 | 2010-06-30 | 中核武汉核电运行技术股份有限公司 | Probe swinging mechanism for performing ultrasonic detection on omega welding line of control bar driving mechanism |
| CN202041155U (en) * | 2011-03-29 | 2011-11-16 | 山东省特种设备检验研究院滨州分院 | Weld joint inspection ruler |
| CN203422055U (en) * | 2013-05-17 | 2014-02-05 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Monitoring device for pipe butt welding deformation |
| CN203286955U (en) * | 2013-05-31 | 2013-11-13 | 贵州詹阳动力重工有限公司 | Tool for measuring welded seam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199421A (en) * | 2017-04-14 | 2017-09-26 | 苏州热工研究院有限公司 | A kind of combined type weld groove detection ruler |
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| CN104654980B (en) | 2019-07-09 |
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