CN108109709A - High temperature ionization chamber suspension arrangement in heap - Google Patents
High temperature ionization chamber suspension arrangement in heap Download PDFInfo
- Publication number
- CN108109709A CN108109709A CN201711398747.7A CN201711398747A CN108109709A CN 108109709 A CN108109709 A CN 108109709A CN 201711398747 A CN201711398747 A CN 201711398747A CN 108109709 A CN108109709 A CN 108109709A
- Authority
- CN
- China
- Prior art keywords
- suspension arrangement
- high temperature
- heap
- ionization chamber
- shell
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 86
- 239000000523 sample Substances 0.000 claims abstract description 24
- 230000003319 supportive effect Effects 0.000 claims abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000004992 fission Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/108—Measuring reactor flux
-
- 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
Abstract
The present invention relates to High temperature ionization chamber suspension arrangements in a kind of heap, suspension arrangement shell including can be inserted into reactor shielding platform vertical channel, in the bottom of suspension arrangement shell, probe support section is set, probe is placed in probe support section, one end of the probe connection armored cable, the other end of armored cable is drawn from the cable outlet of suspension arrangement shell upper, the flange to play a supportive role is equipped on suspension arrangement shell, the flange is supported on the reactor shielding table top of duct upper end, and lifting lug is equipped in suspension arrangement housing top end.The present invention is according to the particular surroundings and detection demand that High temperature ionization chamber suspension arrangement uses in heap; special design has been carried out to High temperature ionization chamber suspension arrangement; it is allowed to the high temperature being suitable in reactor, strong radiation environment; support and shielding can be provided for probe; support is provided for shielding protection structure, insulated channel is provided for cable.
Description
Technical field
The present invention relates to the designs of detector in reactor, and in particular to High temperature ionization chamber suspension arrangement in a kind of heap.
Background technology
Pile neutron detector is the important safety equipment of nuclear power station.It is needed timely and accurately in the operation of reactor
Measurement neutron fluence rate, the insertion depth of adjusting control stick and the concentration of moderator are come with this, so as to reach control reactor
Power and the purpose of safe operation.Main reactor detector is divided into two major classes：A kind of is the reactor core for operating in bad environments
Inside measures neutron detector in the heap of reactor core neutron flux rate distribution, hot spot factor and calibrated meter lamp；Another kind is operation
Outside the more mild reactor core of environment, general power measurement and early warning are substantially carried out.In order to increase burn-up level, reduce weary useless
The generation of material, reactor of new generation employs environment in more severe heap, thus higher requirement is proposed to detector.
Detector is divided into three classes according to principle difference in heap：Utilize the pneumatic activating ball of neutron activation method or activation silk；Profit
With the fission chamber of fission method；Utilize oneself energy detector of neutron nuclear reaction method.High temperature ionization chamber suspension according to the present invention
Device is designed for fission chamber.The basic principle of fission chamber and ionisation chamber are essentially identical, and fission chamber is profit
With neutron fission method：With fissile nuclide fission reaction occurs for neutron, generates fission fragment, and fission fragment is sent out again with gas medium
Raw ionization, ionization ion are collected electrode collection, generate signal.
Reactor core neutron fluence rate is the important reactor core parameter of reactor, and neutron detector is the essential safety of reactor
Equipment, due to being in the adverse circumstances of high temperature, intense radiation in reactor, developing neutron detector in heap has very big technology
Difficulty.
The content of the invention
It is an object of the invention to provide a kind of for the suspension arrangement that High temperature ionization chamber detector designs in heap, in heap
Support and shielding are provided for probe under complex environment, support is provided for shielding protection structure, provides insulated channel for cable.
Technical scheme is as follows：High temperature ionization chamber suspension arrangement in a kind of heap, including can be inserted into reactor shielding
The suspension arrangement shell of platform vertical channel sets probe support section in the bottom of suspension arrangement shell, is put in probe support section
Probe, one end of the probe connection armored cable are put, the cable of the other end from the suspension arrangement shell upper of armored cable goes out
Mouth is drawn, and the flange to play a supportive role is equipped on suspension arrangement shell, and the flange is supported on the reactor screen of duct upper end
Table top is covered, lifting lug is equipped in suspension arrangement housing top end.
Further, High temperature ionization chamber suspension arrangement in heap as described above, wherein, the suspension arrangement shell is not according to
With function be divided into the functional section of different length, argon arc welding is carried out by link block between each functional section.
Further, High temperature ionization chamber suspension arrangement in heap as described above, wherein, the suspension arrangement shell is thin-walled
Pipe.
Further, the thickness range of thin-wall tube is mono- 5mm of 3mm.
Further, High temperature ionization chamber suspension arrangement in heap as described above, wherein, suspension arrangement shell is equipped with reducer,
The shell caliber of reducing pars infrasegmentalis is less than the shell caliber on reducer top.
Further, the reducer is located at the middle part of suspension arrangement, first according to neutron fluence rate in heap, gamma intensity,
After temperature parameter determines the position of function of shielding section, heat insulation function section, the reducer is set below heat insulation function section.
Further, High temperature ionization chamber suspension arrangement in heap as described above, wherein, it is equipped with and uses in suspension arrangement enclosure
In the strain relief clamp of fixed armored cable.
Further, High temperature ionization chamber suspension arrangement in heap as described above, wherein, it has been equipped with sealing in the flange section
The washer of effect.
Further, High temperature ionization chamber suspension arrangement in heap as described above, wherein, there are two the lifting lugs, symmetrically sets
It puts in the both sides of suspension arrangement housing top end.
Beneficial effects of the present invention are as follows：The present invention according to the particular surroundings that High temperature ionization chamber suspension arrangement uses in heap and
Detection demand has carried out High temperature ionization chamber suspension arrangement special design, and the appearance and size of suspension arrangement is according to duct (cylinder
Shape) specific size and detection Environment Design, the length under suspension arrangement flange is according to reactor shielding platform to pile core plane
Location determination.The functional section of the invention that suspension arrangement is divided into different length in view of the problems such as installation, stress distribution, every section
One whole pipe fitting is become by argon arc welding；It, will be below suspension arrangement functional areas in view of controlling suspension arrangement own wt
Devise reducing processing.The present invention be suitable for reactor in high temperature, strong radiation environment, can be pop one's head in support and screen are provided
It covers, provides support for shielding protection structure, insulated channel is provided for cable.
Description of the drawings
Fig. 1 is the structure diagram of High temperature ionization chamber suspension arrangement in heap of the present invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
High temperature ionization chamber suspension arrangement designs for research and development High temperature ionization chamber detector in heap provided by the present invention,
Support and shielding are provided for probe under complex environment in heap, support is provided for shielding protection structure, it is logical to provide insulation for cable
Road.Due in heap High temperature ionization chamber suspension arrangement be in high temperature, intense radiation adverse circumstances in, suspension arrangement stress variation, weldering
It is all technical problem needed to be considered in the design to connect intensity and own wt etc..
In order to accurately measure neutron fluence rate in reactor operation, placed in reactor shielding platform vertical channel
High temperature ionization chamber detection device, according to the particular surroundings and detection demand that High temperature ionization chamber suspension arrangement uses in heap, to high temperature
Ionisation chamber suspension arrangement has carried out special design, and the appearance and size of suspension arrangement is the specific size according to duct (cylindric)
And detection Environment Design, if the diameter design of suspension arrangement need to be less than channel diameter, the length under suspension arrangement flange be by
According to reactor shielding platform to the location determination of reactor core plane；The design of suspension arrangement lifting lug consider single unit system weight and
Weld strength, need to carry out Stress calculation and load-bearing calculates；Since suspension arrangement is thin-wall tube, inside is divided into difference by difference in functionality
Area (blind zone, heat preservation zone, detecting area, cable transition zone etc.), thus in view of installation, stress distribution the problems such as will suspension dress
The functional section for being divided into different length is put, argon arc welding is carried out by every section by link block；In view of control suspension arrangement itself weight
Amount, by suspension arrangement functional areas envisaged underneath reducing processing (diameter of thin-wall tube becomes smaller behind functional areas)；Armored cable passes through
The through flange top of probe, armored cable is passed through devises strain relief clamp per segment interface position, and clamp plays reinforcing armored cable
Effect.The High temperature ionization chamber suspension arrangement by considerations above final design.
The concrete composition of High temperature ionization chamber suspension arrangement of the present invention is shown in Fig. 1, mainly including following sections：1st, lifting lug, 2,
Cable outlet, 3, suspension arrangement shell, 4, flange, 5, washer, 6, armored cable, 7, reducer, 8, strain relief clamp, 9, probe branch
Support section.Since suspension arrangement is operated in more severe heap in environment, it, which is designed, needs to consider many factors, wherein
Crucial design needs the mechanical strength in view of suspension arrangement under particular surroundings, is related to the selection of material, welding manner, tube wall
Thickness, entire suspension arrangement Weight control the problems such as, strictly prevent lift and the course of work in element falling, pipe cracking fall
The problems such as falling in duct occurs.
As shown in Figure 1, lifting lug 1 is located at the top of suspension arrangement, each one of both sides are that lifting whole equipment enters in heap
Critical component during duct carries the weight of entire High temperature ionization chamber；Cable outlet 2 is that cable is opened from suspension arrangement bottom probe
Begin vertically upward through the outlet of cable after whole device, rear end is connected with secondary meter；Suspension arrangement shell 3 is thermal ionization
The support member of room probe, blind zone, cable etc., is thin-wall pipes, under particular surroundings consideration material stress is needed to become in heap
Change, it is contemplated that mitigate the weld strength between the weight of integral hanging device and guarantee changeover portion, the thickness of thin-wall tube is neither
Can be too thin, can not be too thick, thus optional thickness range is 3mm-5mm；Flange 4 is one that suspension arrangement is put into behind duct
Important support component, main support position can support the weight of whole equipment at the top of the shielding platform of ionisation chamber duct upper end
Amount；For washer 5 in flange section, main function is to ensure part opposing seal below flange；Armored cable 6 is probe signal transmission
Pith, lower end with probe output is connected, upper end connects with common cable；Strain relief clamp 8 plays fixed cable；It is outstanding
Hang device bottom probe support section 9 places probe, ensures that center probe is concordant with plane in reactor core；It is visited in view of suspension arrangement
The stress variation easy for installation and under high temperature, strong radiation environment of head, cable etc., High temperature ionization chamber suspension arrangement devise
Multistage bond pattern, welding manner are argon arc weldings；In order to further mitigate the weight of suspension arrangement, reducer 7 has also been devised, i.e.,
Several sections of suspension arrangement top pipe diameter is consistent with pore size, and several sections of lower part pipe diameter becomes smaller, and reducer is arranged on heat preservation
Functional areas in the following, Position Approximate at the middle part of suspension arrangement, final position will according to neutron fluence rate in heap, gamma intensity,
The parameters such as temperature specifically determine again after determining the position of functional areas (blind zone, heat preservation zone).
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 scope.If in this way, belong to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to comprising including these modification and variations.
Claims (9)
1. a kind of High temperature ionization chamber suspension arrangement in heap, it is characterised in that：Including can be inserted into reactor shielding platform vertical channel
Suspension arrangement shell (3), probe support section (9) is set in the bottom of suspension arrangement shell (3), is put in probe support section (9)
Put probe, one end of the probe connection armored cable (6), the other end of armored cable (6) is from suspension arrangement shell (3) top
Cable outlet (2) draw, the flange (4) that plays a supportive role, flange (4) support are equipped on suspension arrangement shell (6)
Reactor shielding table top in duct upper end is equipped with lifting lug (1) on suspension arrangement shell (6) top.
2. High temperature ionization chamber suspension arrangement in heap as described in claim 1, it is characterised in that：The suspension arrangement shell
(3) it is divided into the functional section of different length according to different functions, argon arc welding is carried out by link block between each functional section.
3. High temperature ionization chamber suspension arrangement in heap as described in claim 1, it is characterised in that：The suspension arrangement shell
(3) it is thin-wall tube.
4. High temperature ionization chamber suspension arrangement in heap as claimed in claim 3, it is characterised in that：The thickness range of thin-wall tube is
3mm-5mm。
5. High temperature ionization chamber suspension arrangement in heap as claimed in claim 2, it is characterised in that：Suspension arrangement shell (3) is equipped with
Reducer (7), the shell caliber of reducing pars infrasegmentalis are less than the shell caliber on reducer top.
6. High temperature ionization chamber suspension arrangement in heap as claimed in claim 5, it is characterised in that：The reducer (7) is located at outstanding
The middle part of hang device first determines function of shielding section, heat insulation function section according to neutron fluence rate, gamma intensity, temperature parameter in heap
Position after, the reducer (7) is set below heat insulation function section.
7. High temperature ionization chamber suspension arrangement in heap as described in claim 1, it is characterised in that：In suspension arrangement shell (3)
Portion is equipped with to fix the strain relief clamp (8) of armored cable (6).
8. High temperature ionization chamber suspension arrangement in heap as described in claim 1, it is characterised in that：It is equipped in the flange section
The washer (5) of sealing function.
9. High temperature ionization chamber suspension arrangement in heap as described in claim 1, it is characterised in that：There are two the lifting lugs (1),
It is symmetricly set on the both sides on suspension arrangement shell (6) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398747.7A CN108109709A (en) | 2017-12-21 | 2017-12-21 | High temperature ionization chamber suspension arrangement in heap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398747.7A CN108109709A (en) | 2017-12-21 | 2017-12-21 | High temperature ionization chamber suspension arrangement in heap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108109709A true CN108109709A (en) | 2018-06-01 |
Family
ID=62212366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711398747.7A Pending CN108109709A (en) | 2017-12-21 | 2017-12-21 | High temperature ionization chamber suspension arrangement in heap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108109709A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712725A (en) * | 2018-12-29 | 2019-05-03 | 中国原子能科学研究院 | It is a kind of for shielding the device and method of gamma rays |
| CN112420230A (en) * | 2020-11-18 | 2021-02-26 | 中国核动力研究设计院 | In-reactor neutron detector assembly for passive start of nuclear power plant |
| CN112837835A (en) * | 2020-12-30 | 2021-05-25 | 中国原子能科学研究院 | Probe protection device and high-temperature fission chamber with same |
| CN112993883A (en) * | 2021-03-15 | 2021-06-18 | 中国原子能科学研究院 | Cable clamp and ionization chamber suspension device in reactor |
| CN114167171A (en) * | 2021-11-22 | 2022-03-11 | 中国原子能科学研究院 | High-temperature fission chamber detection device and high-temperature fission chamber detection system |
| CN114446500A (en) * | 2021-12-21 | 2022-05-06 | 中国原子能科学研究院 | High-temperature fission chamber |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201936627U (en) * | 2010-12-29 | 2011-08-17 | 中核(北京)核仪器厂 | Long neutron ionization chamber for detector for nuclear detection out of piles |
| CN103377725A (en) * | 2012-04-27 | 2013-10-30 | 上海核工程研究设计院 | Reactor internal of reactor |
| CN105448363A (en) * | 2015-11-12 | 2016-03-30 | 中广核工程有限公司 | Nuclear instrument system for nuclear power station and positioning method thereof |
| CN105493197A (en) * | 2013-08-23 | 2016-04-13 | 西屋电气有限责任公司 | Ion chamber radiation detector |
| CN205381586U (en) * | 2016-03-01 | 2016-07-13 | 张家港富瑞重型装备有限公司 | Safe linkage and system |
| CN205582500U (en) * | 2016-05-06 | 2016-09-14 | 中国核动力研究设计院 | Pressurized -water type nuclear reactor device |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN106531245A (en) * | 2016-11-25 | 2017-03-22 | 浙江伦特机电有限公司 | Thimble assembly of in-core instrument for nuclear power station |
| CN107039094A (en) * | 2017-05-24 | 2017-08-11 | 长江勘测规划设计研究有限责任公司 | Pressure vessel changeable type underground nuclear power station heap chamber |
| CN207690516U (en) * | 2017-12-21 | 2018-08-03 | 中国原子能科学研究院 | High temperature ionization chamber suspension arrangement in heap |
-
2017
- 2017-12-21 CN CN201711398747.7A patent/CN108109709A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201936627U (en) * | 2010-12-29 | 2011-08-17 | 中核(北京)核仪器厂 | Long neutron ionization chamber for detector for nuclear detection out of piles |
| CN103377725A (en) * | 2012-04-27 | 2013-10-30 | 上海核工程研究设计院 | Reactor internal of reactor |
| CN105493197A (en) * | 2013-08-23 | 2016-04-13 | 西屋电气有限责任公司 | Ion chamber radiation detector |
| CN105448363A (en) * | 2015-11-12 | 2016-03-30 | 中广核工程有限公司 | Nuclear instrument system for nuclear power station and positioning method thereof |
| CN205381586U (en) * | 2016-03-01 | 2016-07-13 | 张家港富瑞重型装备有限公司 | Safe linkage and system |
| CN205582500U (en) * | 2016-05-06 | 2016-09-14 | 中国核动力研究设计院 | Pressurized -water type nuclear reactor device |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN106531245A (en) * | 2016-11-25 | 2017-03-22 | 浙江伦特机电有限公司 | Thimble assembly of in-core instrument for nuclear power station |
| CN107039094A (en) * | 2017-05-24 | 2017-08-11 | 长江勘测规划设计研究有限责任公司 | Pressure vessel changeable type underground nuclear power station heap chamber |
| CN207690516U (en) * | 2017-12-21 | 2018-08-03 | 中国原子能科学研究院 | High temperature ionization chamber suspension arrangement in heap |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712725A (en) * | 2018-12-29 | 2019-05-03 | 中国原子能科学研究院 | It is a kind of for shielding the device and method of gamma rays |
| CN109712725B (en) * | 2018-12-29 | 2021-09-03 | 中国原子能科学研究院 | Device and method for shielding gamma rays |
| CN112420230A (en) * | 2020-11-18 | 2021-02-26 | 中国核动力研究设计院 | In-reactor neutron detector assembly for passive start of nuclear power plant |
| CN112837835A (en) * | 2020-12-30 | 2021-05-25 | 中国原子能科学研究院 | Probe protection device and high-temperature fission chamber with same |
| CN112993883A (en) * | 2021-03-15 | 2021-06-18 | 中国原子能科学研究院 | Cable clamp and ionization chamber suspension device in reactor |
| CN114167171A (en) * | 2021-11-22 | 2022-03-11 | 中国原子能科学研究院 | High-temperature fission chamber detection device and high-temperature fission chamber detection system |
| CN114446500A (en) * | 2021-12-21 | 2022-05-06 | 中国原子能科学研究院 | High-temperature fission chamber |
| CN114446500B (en) * | 2021-12-21 | 2024-01-16 | 中国原子能科学研究院 | High-temperature cracking chamber |
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