CN201584177U - Device for monitoring leakage from welding seam of reactor pond - Google Patents
Device for monitoring leakage from welding seam of reactor pond Download PDFInfo
- Publication number
- CN201584177U CN201584177U CN2009203521715U CN200920352171U CN201584177U CN 201584177 U CN201584177 U CN 201584177U CN 2009203521715 U CN2009203521715 U CN 2009203521715U CN 200920352171 U CN200920352171 U CN 200920352171U CN 201584177 U CN201584177 U CN 201584177U
- Authority
- CN
- China
- Prior art keywords
- box
- prison
- leakage
- processor
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 title abstract description 7
- 238000003466 welding Methods 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000004567 concrete Substances 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model discloses a device for monitoring the leakage from a welding seam of a reactor pond. The device comprises a processor (5), a display and alarm terminal (6) and a storage tank (9) and is essentially characterized in that a covering groove (1) is welded outside a steel lining of the reactor pond; the bottom part of the covering groove (1) is connected with a leak detection box (3) via a leak-off tube (2); the leak detection box (3) is connected with the processor (5) via a probe cable (4); the processor (5) is connected with the display and alarm terminal (6); the bottom part of the leak detection box (3) is connected with a collection box (8) via a leading tube (7); and the collection box (8) is connected with the storage tank (9). The device of the utility model has the advantage of simple structure and is capable of integrating the functions of monitoring and collecting the leaking liquid on a real-time basis into a whole.
Description
Technical field
The utility model relates to the reactor engineering technical field, and particularly the neglected loading of the incorporate weld seam prison of leakage of a kind of collection of reactor pit prison and leakage collecting function is put.
Background technology
No matter at home the pond leakage phenomenon, outer nuclear power station still is also comparatively common in the pond of VVR type reactor, and the leakage in pond bring certain risk and harm can for the safe operation of nuclear power plant.Because inwall and base plate lining is the stainless steel clad can in the steel lining of pond, clad can is welded by polylith corrosion resistant plate not of uniform size.Outside in the steel lining of general stainless steel pond contacts with concrete.And concrete also can not carry out special composition control, has a small amount of halogens in the concrete inevitably.Along with the increase of time and appropriateness, chlorion, fluorine ion etc. may dissociate out from the concrete side, forms certain fluorine ion, chlorine ion concentration.Though the welding stress that welding causes is less, is not enough to cause separately corrosion, objectively has certain welding stress, and stress is very big to the aggravation influence of corrosion, and it can impel the accelerated development of corrosion, especially weld heat-affected zone.Cause the stainless steel clad can to begin to corrode thus from the concrete side, when defective does not run through as yet, liquid penetrant inspection can't be found the existence of these defectives, but develop in depth and breadth and progressively reach at last to the pond side and run through leakage along with the continuity of time, this also finds that with Non-Destructive Testing the increase result of annual leakage point quantity is consistent.The passing in time of this structure, the pond just has leakage, and leak source is more and more, and this leakage phenomenon is also more common in the pond of nuclear power plant abroad, and maintenance wastes time and energy, and leaks the safe operation of returning nuclear power plant and has brought certain risk and harm.Leakage is made up of multiple factor, is not only weld defects, mechanical stress, and more chief reason is that initial weld defects causes that the corrosion of steel linear concrete side causes.
The home and abroad has two kinds of main restorative procedures at present in the world to leaking general whole reparation of adopting in the reactor steel lining: a kind of is that stainless steel strip covers solder technology; Another kind is the organic material layer technology for applying.These two kinds of technology generally are just to adopt remedial measures after leaking, and its shortcoming is:
(1) leaking discovery relatively lags behind;
(2) water that leaks from the pond steel linear enters the reinforced concrete floor in pond, and water meeting corrosion reinforcing bar steel bars in concrete causes pond baseboard intensity to lower, and causes certain harm;
(3) water of Guo Louing can enter external environment by spentnuclear fuel factory building exterior wall, and environment pollutes to external world;
(4) need check that to all weld seams waste time and energy, the cycle is longer.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, provides a kind of weld seam prison neglected loading that collects the incorporate reactor pit simple in structure of real-time monitoring, leakage collecting function to put.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of prison neglected loading of reactor pit weld seam is put, comprise processor, demonstration and alarm terminal, storage tank, key is, cover slot welding and be connected on outside in the reactor pit steel lining, covering trench bottom is connected by leak-off connection and prison leakage box, prison leaks box and is connected with processor by probe cable, and processor connects and shows and alarm terminal; Prison leaks the box bottom and is connected with the collection box by fairlead, collects box and connects storage tank.Wherein covering groove is stainless steel.
Compared with prior art, the beneficial effects of the utility model are: this device covers groove by welding on the weld seam of stainless steel lining outside, cover groove and be drawn out to monitor box by leak-off connection, monitor box is surveyed by probe cable, provide fault-signal through processor, demonstration and alarm terminal, the bottom of monitor box is connected with the collection box simultaneously, and the collection box is connected with storage tank can be used for collecting leakage; Both install monitoring leakage in real time by this, and can reclaim the leakage of leakage again.
Description of drawings
The structural representation of Fig. 1 device
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
The prison neglected loading of a kind of reactor pit weld seam is as shown in Figure 1 put, this device comprises and covers groove 1, leak-off connection 2, prison leaks box 3, collect box 8, processor 5, show and alarm terminal 6, storage tank 9, cover groove 1 and be welded on stainless steel-lined weld seam outside, one end contacts with concrete, the bottom is drawn leakage by leak-off connection 2 and is leaked box 3 to prison, prison leaks box 3 and is connected with processor 5 by probe cable 4, provide signal by the probe cable 4 that is connected with prison leakage box 3, signal flows to demonstration and the alarm terminal 6 that is connected with processor 5 after handling through processor 5 again, provides fault-signal by showing with alarm terminal 6 at last.Simultaneously, prison leaks box 3 bottoms and is communicated with collection box 8 by fairlead 7, so that reclaim the leakage of leaking.In order to prevent that a large amount of leakage from leaking, collect box 8 and also be connected with storage tank 9 and reclaim by pipe.
This device is judged the particular location of pond weld leakage by the leakage in detection reaction heap pond, repairs timely, and timely leakage is collected, to guarantee reactor operation safety.When a certain monitoring point of reactor takes place to leak, demonstration in this device and alarm terminal 6 can send alerting signal exactly and determined leakage point at reactor pit weld seam particular location, also can submit necessary information simultaneously for the reactor operator takes adequate measures.Be provided with this monitoring device like this and just can well stop the corrosion of the steel linear concrete side that causes by weld defects, and can environment not impacted because of the leakage of water.And, can know information such as concrete certain road weld leakage, leakage rate for monitoring in labour in the future provides information, so just can save a large amount of time and manpower, and provide adequate condition for secondary overhauls.
Claims (2)
1. the prison neglected loading of a reactor pit weld seam is put, comprise processor (5), demonstration and alarm terminal (6), storage tank (9), it is characterized in that, cover groove (1) and be welded on outside in the reactor pit steel lining, covering groove (1) bottom is connected by leak-off connection (2) and prison leakage box (3), prison leaks box (3) and is connected with processor (5) by probe cable (4), and processor (5) connects and shows and alarm terminal (6); Prison leaks box (3) bottom and is connected with collection box (8) by fairlead (7), collects box (8) and connects storage tank (9).
2. the prison neglected loading of reactor pit weld seam according to claim 1 is put, and it is characterized in that, the described groove (1) that covers is a stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203521715U CN201584177U (en) | 2009-12-31 | 2009-12-31 | Device for monitoring leakage from welding seam of reactor pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203521715U CN201584177U (en) | 2009-12-31 | 2009-12-31 | Device for monitoring leakage from welding seam of reactor pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584177U true CN201584177U (en) | 2010-09-15 |
Family
ID=42726186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203521715U Expired - Lifetime CN201584177U (en) | 2009-12-31 | 2009-12-31 | Device for monitoring leakage from welding seam of reactor pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584177U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151967A (en) * | 2017-11-16 | 2018-06-12 | 中国核电工程有限公司 | A kind of nuclear power plant nuclear island workshop liquid leakage rate measuring device |
| CN111564229A (en) * | 2020-04-01 | 2020-08-21 | 中广核工程有限公司 | Leakage detection method for steel cladding of nuclear power station pool |
| CN112361110A (en) * | 2020-09-27 | 2021-02-12 | 中核核电运行管理有限公司 | Connecting device and method for corrosion-resistant alloy bushing of leakage guide pipe of primary loop valve |
-
2009
- 2009-12-31 CN CN2009203521715U patent/CN201584177U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151967A (en) * | 2017-11-16 | 2018-06-12 | 中国核电工程有限公司 | A kind of nuclear power plant nuclear island workshop liquid leakage rate measuring device |
| CN108151967B (en) * | 2017-11-16 | 2021-05-18 | 中国核电工程有限公司 | Nuclear power plant nuclear island factory building liquid leakage rate measuring device |
| CN111564229A (en) * | 2020-04-01 | 2020-08-21 | 中广核工程有限公司 | Leakage detection method for steel cladding of nuclear power station pool |
| CN111564229B (en) * | 2020-04-01 | 2023-11-24 | 中广核工程有限公司 | Leakage detection method for nuclear power station pool steel cladding |
| CN112361110A (en) * | 2020-09-27 | 2021-02-12 | 中核核电运行管理有限公司 | Connecting device and method for corrosion-resistant alloy bushing of leakage guide pipe of primary loop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |