CN108196291A - One kind is used for16The leading shielding detection device of N monitors - Google Patents
One kind is used for16The leading shielding detection device of N monitors Download PDFInfo
- Publication number
- CN108196291A CN108196291A CN201711165686.XA CN201711165686A CN108196291A CN 108196291 A CN108196291 A CN 108196291A CN 201711165686 A CN201711165686 A CN 201711165686A CN 108196291 A CN108196291 A CN 108196291A
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- China
- Prior art keywords
- lead
- detection device
- monitors
- shielding
- leading
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
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- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses one kind to be used for16The leading shielding detection device of N monitors, is related to nuclear power station radiation detector technical field, includes stent, probe, temperature sensor, the plug-in unit of external interface, sleeve, shielding lead and outer cover；This programme advantageous effects are：This programme on the outside of probe by adding shielding lead on rational position, the position for shielding lead calculates to determine by the NaI crystal positions in probe, so as to can effectively receive the gamma-rays released in jet chimney in detection process, eliminate influence of the background to measuring environment simultaneously, the ladder dislocation design of lead effectively forms annulus shielding, and increase enclosure design, it is mainly used for fixed lead ring position, and whole device is made to become an overall structure, above-mentioned leading shielding detection device in this programme can effectively improve the reliability of result of detection, it ensure that16The reasonable effective work of N monitors, while reached easy for assemble or unload and the appearance is beautiful and elegant.
Description
Technical field
The present invention relates to nuclear power station radiation detector technical fields, and in particular to one kind is used for16The leading shielding of N monitors
Detection device.
Background technology
16N monitors in nuclear power station its be mainly used for monitoring secondary circuit steam pipe and occur16N high-energy gamma radiations, mesh
Used in preceding domestic nuclear power16It can be influenced the detection device of N monitors by environmental exact details in use, so as to
Cause the accuracy of detection measurement result.Therefore in view of this, for how searching out a kind of reasonable design, effectively shielding
Background interferes and the detection device of reliable measuring data is just particularly important.
Invention content
For defect in the prior art, the purpose of the present invention is to provide a kind of reasonable design, can effectively shield
Background interferes and reliable measuring data is used for16The leading shielding detection device of N monitors.
To achieve the above object, the technical solution adopted by the present invention is as follows：
One kind is used for16The leading shielding detection device of N monitors, includes probe, temperature sensor and external interface
The probe assembly that plug connector is combined into one, probe assembly are arranged in sleeve, are set on the outside of sleeve and are done for excluding background
The shielding lead disturbed is externally provided with outer cover in sleeve and shielding lead.
Further, the shielding lead is the lead body structure that lead body is divided into about four pairs semicirculars in shape, wherein each
It is in the connection structure for axially and radially using ladder dislocation between lead body structure.
Further, the outer cover uses the split type connection structure of two-piece unit formula.
Further, it is fixed together between the shielding lead and outer cover using stay bolt.
Further, its place that heals up of the outer cover is fixed by bolts connected.
Further, its height of the leading shielding detection device is adjustable.
Further, described its rear and front end of probe is fixed together respectively with the sleeve both ends.
Further, the position that the shielding lead is mounted on the sleeve outer end face passes through NaI crystal in the probe
Can to contain jet chimney end face completely determining to calculate at flicker angle.
Compared with prior art, the advantageous effects that this programme has are：This programme passes through position reasonable on the outside of probe
It puts and adds shielding lead and outer cover, the position for shielding lead calculates to determine by the NaI crystal positions in probe,
Background is eliminated simultaneously to measuring ring so as to can effectively receive the gamma-rays released in jet chimney in detection process
The influence in border, outer cover its mainly for the protection of entire detection device, whole device is made to become an overall structure, to sum up,
Above-mentioned leading shielding detection device in this programme can effectively improve the reliability of result of detection, ensure that16N monitors it is reasonable
Effective work, while achieved the effect that easy for assemble or unload and the appearance is beautiful and elegant.
Description of the drawings
Fig. 1 is that the leading of the present invention shields the theory structure schematic diagram of detection device.
Fig. 2 is the radiation angle schematic diagram between the jet chimney in the present invention and leading shielding detection device.
Fig. 3 is the shielding lead dimensional structure diagram in the present invention.
Fig. 4 is that shielding lead and the schematic diagram of end face of flange distance are calculated in the present invention.
Reference sign in figure：
1- pops one's head in, 2- outer covers, 3- shielding leads, 4- jet chimneys, 5- lead body structures.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
With reference to shown in attached drawing 1 to 3, the present embodiment provides one kind to be used for16The leading shielding detection device of N monitors, should add
Lead screen detection device includes stent, probe 1, temperature sensor, the plug-in unit of external interface, sleeve, shielding lead 3 and outer
Cover 2.Entire leading shielding detection device is divided into two large divisions, and first part is will pop one's head in 1, temperature sensor and external interface
Insert design is integral, in order to integral installation dismantle and debug repair, probe 1 its both ends respectively with the both ends stationary phase of sleeve
Even；Second part is fixedly linked for that will shield lead 3, outer cover 2 and stent, wherein shielding lead 3 is arranged in the outer end face of sleeve
On, its inner face with outer cover 2 of shielding lead 3 is fixedly linked, and outer cover 2 is then fixedly linked with stent.Shield lead 3 and outer cover
It is fixed together between 2 using stay bolt, its place that heals up of outer cover 2 is fixed by bolts connected.With reference to shown in attached drawing 2, it is
Influence of the background to measuring environment is excluded, accurately receives the gamma-rays that jet chimney 4 is released, shields the installation of lead 3
Position on sleeve outer end face is what is be calculated by determining the NaI crystal positions in probe.Shield the position of lead
Jet chimney end face can be contained by the flicker angle for determining the NaI crystal in probe completely to determine the installation position of shielding lead
It puts.Shielding lead can be accurately drawn out by the crystal positions of the inside of the position relationship and monitor of tested device and monitor
Block position, i.e. lead are located at monitor left end, apart from left end inner flange outer end face distance.Specific reference to shown in attached drawing 4,
Required distance is EF length in figure,
Referring to shown in attached drawing 3, shielding lead 3 is divided into about four pairs in half when design shields lead 3 in this programme
The lead body structure 5 of circular ring shape.And it is in the connection knot axially and radially to be misplaced using ladder between every a pair of lead body structure 5
Structure prevents lead moving during so as to achieve the effect that work and prevents ray from leaking out the four lead body knots to upper and lower semi-circular shape
Structure 5 is is locked together by outer cover 2.
Outer cover 2 in this programme makes its role is to protect the shielding lead 3 of the sleeve of entire detection device and outside
Entire detection device becomes an entirety.Detector outer cover 2 be divided to up and down two bodies, prevent from popping one's head in axial moving while, also ensure
The beauty of detector.
In conclusion this programme shields lead by adding shielding lead 3 and outer cover 2 on 1 outside rational position of probe
The position of block 3 calculates to determine by the NaI crystal positions in probe, so as to can effectively be received in detection process
Gamma-rays released in jet chimney 4 has discharged influence of the background to measuring environment simultaneously, outer cover 2 its mainly for the protection of whole
A detection device makes whole device become an overall structure, to sum up, the above-mentioned leading shielding detection device in this programme
The reliability of result of detection can be effectively improved, ensure that16The reasonable effective work of N monitors, while reached installing and dismounting
Effect convenient and that the appearance is beautiful and elegant.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technology
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. one kind is used for16The leading shielding detection device of N monitors, which is characterized in that include probe, temperature sensor and right
The probe assembly that the plug connector of external tapping is combined into one, probe assembly are arranged in sleeve, set to arrange on the outside of sleeve
Except the shielding lead of background interference, outer cover is externally provided in sleeve and shielding lead.
2. one kind according to claim 1 is used for16The leading shielding detection device of N monitors, it is characterised in that：The screen
It is the lead body structure that lead body is divided into about four pairs semicirculars in shape to cover lead, wherein per between a pair of lead body structure axial and
The radially connection structure to be misplaced using ladder.
3. one kind according to claim 2 is used for16The leading shielding detection device of N monitors, it is characterised in that：It is described outer
Cover uses the split type connection structure of two-piece unit formula.
4. one kind according to claim 1 is used for16The leading shielding detection device of N monitors, it is characterised in that：The screen
It covers and is fixed together between lead and outer cover using stay bolt.
5. one kind according to claim 1 is used for16The leading shielding detection device of N monitors, it is characterised in that：It is described outer
Cover its place that heals up be fixed by bolts it is connected.
6. one kind according to claim 1 is used for16The leading shielding detection device of N monitors, it is characterised in that：It is described to add
Its height of lead screen detection device is adjustable.
7. one kind according to claim 1 is used for16The leading shielding detection device of N monitors, it is characterised in that：The spy
Head rear and front end is fixed together respectively with the sleeve both ends.
8. one kind according to claim 1 is used for16The leading shielding detection device of N monitors, it is characterised in that：The screen
Position of the lead on the sleeve outer end face is covered can to contain completely by the flicker angle of NaI crystal in the probe
Jet chimney end face is determining to calculate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165686.XA CN108196291A (en) | 2017-11-21 | 2017-11-21 | One kind is used for16The leading shielding detection device of N monitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165686.XA CN108196291A (en) | 2017-11-21 | 2017-11-21 | One kind is used for16The leading shielding detection device of N monitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108196291A true CN108196291A (en) | 2018-06-22 |
Family
ID=62573107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711165686.XA Pending CN108196291A (en) | 2017-11-21 | 2017-11-21 | One kind is used for16The leading shielding detection device of N monitors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108196291A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189844A (en) * | 2019-05-15 | 2019-08-30 | 中国辐射防护研究院 | Hot spot screening arrangement is radiated at a kind of modularized combination type pipeline end cap |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818231A (en) * | 1971-07-20 | 1974-06-18 | Westinghouse Electric Corp | N-16 nuclear reactor coolant flow rate measuring system |
| US5108694A (en) * | 1991-08-23 | 1992-04-28 | Westinghouse Electric Corp. | Power distribution measuring system employing gamma detectors outside of nuclear reactor vessel |
| CN203588698U (en) * | 2013-11-28 | 2014-05-07 | 中国船舶重工集团公司第七一九研究所 | Lead shield used for nuclear radiation detecting and protecting |
| JP5506549B2 (en) * | 2010-06-03 | 2014-05-28 | 日立Ｇｅニュークリア・エナジー株式会社 | Dose rate monitoring method and dose rate monitoring device |
| CN103985423A (en) * | 2014-05-21 | 2014-08-13 | 田志恒 | Method for monitoring 16N leaking from nuclear power reactor vapor generator |
| CN205451796U (en) * | 2015-12-18 | 2016-08-10 | 中国辐射防护研究院 | Low background shield assembly |
-
2017
- 2017-11-21 CN CN201711165686.XA patent/CN108196291A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818231A (en) * | 1971-07-20 | 1974-06-18 | Westinghouse Electric Corp | N-16 nuclear reactor coolant flow rate measuring system |
| US5108694A (en) * | 1991-08-23 | 1992-04-28 | Westinghouse Electric Corp. | Power distribution measuring system employing gamma detectors outside of nuclear reactor vessel |
| JP5506549B2 (en) * | 2010-06-03 | 2014-05-28 | 日立Ｇｅニュークリア・エナジー株式会社 | Dose rate monitoring method and dose rate monitoring device |
| CN203588698U (en) * | 2013-11-28 | 2014-05-07 | 中国船舶重工集团公司第七一九研究所 | Lead shield used for nuclear radiation detecting and protecting |
| CN103985423A (en) * | 2014-05-21 | 2014-08-13 | 田志恒 | Method for monitoring 16N leaking from nuclear power reactor vapor generator |
| CN205451796U (en) * | 2015-12-18 | 2016-08-10 | 中国辐射防护研究院 | Low background shield assembly |
Non-Patent Citations (2)
| Title |
|---|
| 凌球等编著: "《核电站辐射测量技术》", 31 December 2001 * |
| 郑军伟等: "核电厂主蒸汽_16_N监测用于蒸汽发生器泄漏率测量的研究", 《核电技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189844A (en) * | 2019-05-15 | 2019-08-30 | 中国辐射防护研究院 | Hot spot screening arrangement is radiated at a kind of modularized combination type pipeline end cap |
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Application publication date: 20180622 |