CN109192344A - Detection probe opening mechanism in long and narrow space - Google Patents
Detection probe opening mechanism in long and narrow space Download PDFInfo
- Publication number
- CN109192344A CN109192344A CN201811014680.7A CN201811014680A CN109192344A CN 109192344 A CN109192344 A CN 109192344A CN 201811014680 A CN201811014680 A CN 201811014680A CN 109192344 A CN109192344 A CN 109192344A
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- CN
- China
- Prior art keywords
- opening mechanism
- connecting rod
- cylinder
- camera
- narrow space
- 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.)
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Classifications
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- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses detection probe opening mechanisms in a kind of long and narrow space, it includes that side wall is equipped with the support portion being open, the opening mechanism being installed in the support portion and is connected to the camera module that on the opening mechanism and can be stretched out and withdraw from the opening.Opening mechanism includes that cylinder and the multi-connecting-rod mechanism hinged with support portion, CCD camera assembly are fixed on multi-connecting-rod mechanism.The present invention can prevent camera because cylinder etc. fails to the problem of withdrawing, and improve the safety of detection process；Improve detection reliability, the safety of the detection of nuclear power station control rod guide tubes and bundles guide card；Camera is supported using multiple support links, reduces shaking when camera is opened；It is driven using double-acting cylinder, connects and stablize conveniently with control.
Description
Technical field
The present invention relates to detection probe opening mechanisms in a kind of long and narrow space.
Background technique
Control rod guide tubes and bundles include top guide cylinder and lower part guide cylinder, wherein provide guiding for control rod is guide cylinder
Internal guide card and continuous steerable components at different levels, these components are after long-play, due to sliding friction and vibration shadow
It rings, the inner hole and connection band of guide card and continuous steerable component are easily worn, and be will lead to control rod and are lost guiding and fall
The stick time is overproof, even card rod event.In the nuclear power unit that foreign countries run more than 20 years, has more units and occur in heap
Component failure event.French Nuclear Power unit has found that control rod guide tubes and bundles exist in running the pressurized-water reactor nuclear power plant close to 30 years
More abrasion, and start extensive replacement, so far from 2010, group of Electricite De France (EDF) has replaced about 430 groups of controls
Stick guide assembly processed.The U.S. is classified as the inspection to control rod guide tubes and bundles the essential items for inspection that nuclear power unit is lengthened the life.
The U.S. patent Nos of Patent No. US005078955 disclose a kind of control rod guide tubes and bundles detection system, mainly
For a kind of camera transmission device, including motor, screw rod etc., the stretching of camera is realized by two sections of reverse threads on screw rod
With withdrawal, however there is a problem of that disassembly is inconvenient, makes troubles to the installation and debugging and maintenance of equipment, can make staff's exposure
Time under radioactive environment increases；Using worm drive, longer screw rod is needed, keeps its structure more complicated, is not easy to
Installation.Therefore, design that a kind of structure is simple, it is necessary with the camera Unclosing structure dismantled to be easily installed.
Summary of the invention
The object of the present invention is to provide a kind of structures simply, is easily installed and opens with detection probe in the long and narrow space of disassembly
Mechanism.
In order to solve the above technical problems, the present invention adopts the following technical scheme: detection probe is opened in a kind of long and narrow space
Mechanism, it includes that side wall is equipped with the support portion being open, the opening mechanism being installed in the support portion and is connected to described beat
On opening mechanism and the camera module that can stretch out and withdraw from the opening, the support portion include the support tube that is located above with
And underlying guide head, the opening mechanism include that at least one set of upper end is articulated with the support tube inside and lower end
With the first connecting rod of the camera module phase hinge, the next setting on first connecting rod described in same group, the opening mechanism is also
Including upper end and respectively with the second connecting rod being hinged in the middle part of the first connecting rod, for pushing second liang of bar to act
And it is stretched out with the first connecting rod or the connecting plate withdrawn and the cylinder for driving the connecting plate to move up and down, described the
The lower end of two connecting rods is hinged with the connecting plate.
Optimization, the first connecting rod has two groups and the two sides with the camera module are hinged respectively.
Optimization, the connecting plate l-shaped, transverse plate below is mutually fixedly connected with the piston rod of the cylinder,
The longitudinal plate of top, which slides up and down to, to be connected in the support portion.
Further, the cylinder body of the cylinder is located in the guide head, and the piston rod of the cylinder is located at the support
In cylinder, reset tension spring is equipped between the transverse plate and the guide head.
Optimization, the side wall of the support tube is equipped with anti-foreign matter baffle.
Optimization, the opening mechanism further includes set on the camera between the first connecting rod and the camera module
Mounting plate.
The beneficial effects of the present invention are: the present invention can prevent foreign matter from entering control rod guiding to avoid the generation of junk
Situation in cylinder, safety margin improve；Camera can be prevented because cylinder etc. fails to the problem of withdrawing, raising detected
The safety of journey；Improve detection reliability, the safety of the detection of nuclear power station control rod guide tubes and bundles guide card；Connected using multiple supports
Bar supports camera, reduces shaking when camera is opened；It is driven using double-acting cylinder, connects and stablize conveniently with control；Subtract
Equipment set-up time when few in-Service Inspection of Nuclear Power Station, inservice inspection efficiency is improved, to reduce the radiation agent that personnel are subject to
Amount；When cylinder deactivation can camera module can by gravity automatically retract, will not be stuck on control rod guide card；It can be mounted directly
In control rod guide card non-destructive testing device, convenient disassembly.
Detailed description of the invention
Fig. 1 is reactor control rod guide card non-destructive testing device camera opening mechanism contraction state
Fig. 2 is reactor control rod guide card non-destructive testing device camera opening mechanism opening state
Fig. 3 is reactor control rod guide card non-destructive testing device camera opening mechanism Longitudinal cross section schematic
In figure: 1 support portion, 1-1 support tube, the anti-foreign matter baffle of 1-2,1-3 guide head；2 opening mechanisms, 2-1 cantilever pin
Axis, 2-2 first connecting rod, 2-3 second connecting rod, 2-4 pin shaft, 2-5 camera mounting plate, 2-6 connecting plate, 2-7 double acting gas
Cylinder；3 camera modules.
Specific embodiment
Embodiment shown in reference to the accompanying drawing is described in detail below the present invention:
As shown in Fig. 1/2/3, detection probe opening mechanism 2 includes that side wall is equipped with the support portion 1 of opening, is installed in long and narrow space
It opening mechanism 2 in the support portion 1 and is connected on the opening mechanism 2 and can be stretched out from the opening and that withdraws takes the photograph
Picture head module 3,
The support portion 1 includes the support tube 1-1 and underlying guide head 1-3 being located above, and the opening mechanism 2 wraps
It includes at least one set of upper end and is articulated with the inside support tube 1-1 and lower end and the first of the 3 phase hinge of camera module
Connecting rod 2-2, upper end with respectively with the second connecting rod 2-3 being hinged in the middle part of the first connecting rod 2-2, for pushing described the
The movement of two liang of bars and stretched out with the first connecting rod 2-2 or withdraw connecting plate 2-6, for driving the connecting plate 2-6 or more
The cylinder of movement and the camera mounting plate 2-5 between the first connecting rod 2-2 and the camera module 3.It is same
The next setting, the first connecting rod 2-2 have two groups and respectively two with the camera module 3 on the group first connecting rod 2-2
Side is hinged, and the lower end of the second connecting rod 2-3 is hinged with the connecting plate 2-6.The connecting plate 2-6 l-shaped, under
The transverse plate of side is mutually fixedly connected with the piston rod of the cylinder, above longitudinal plate slide up and down to and be connected to the support
In portion 1.The cylinder body of the cylinder is located in the guide head 1-3, and the piston rod of the cylinder is located in the support tube 1-1,
Reset tension spring is equipped between the transverse plate and the guide head 1-3.The side wall of the support tube 1-1 is equipped with anti-foreign matter baffle
1-2。
Support portion 1 is used to support opening mechanism 2, is made of support tube 1-1, anti-foreign matter baffle 1-2, guide head 1-3, connection
In control rod guide card non-destructive testing device, for installing opening mechanism 2.Anti- foreign matter baffle 1-2 is welded on support tube 1-1 arm
Opening prevents foreign matter from falling down into control rod guide tubes and bundles；Guide head 1-3 is threadedly attached in the bottom of support tube 1-1,
It is oriented to for camera opening mechanism 2, and protects the double-acting cylinder 2-7 of 2 front end of opening mechanism.
Opening mechanism 2 is for stretching out camera module 3, by cantilever pin shaft 2-42-1, first connecting rod 2-2, second connecting rod 2-
3, pin shaft 2-4, camera mounting plate 2-5, connecting plate 2-6, double-acting cylinder 2-7 composition.Cantilever pin shaft 2-42-1 is fixed on branch
It supports on cylinder 1-1 wall；By being connected on cantilever pin shaft 2-42-1, the other end is connected to by pin shaft 2-4 for the one end first connecting rod 2-2
On camera mounting plate 2-5；The one end second connecting rod 2-3 is connected in the middle part of first connecting rod 2-2 by pin shaft 2-4, and the other end passes through
Pin shaft 2-4 is connected on connecting plate 2-6；Connecting plate 2-6 is L-type, wherein an end face and the fixed company of double-acting cylinder 2-7 push rod
It connects；Double-acting cylinder 2-7 is fixed on the bottom section support tube 1-1, for providing the power of the opening of camera module 3.
Camera module 3 be used for control rod guide card video check, by protective shell, end cap, camera, camera shooting head end cover,
LED light, transparent glass, circlip composition.Protective shell is fixed on 3 mounting plate of camera module；Camera is fixed in protective shell,
And it is encapsulated with camera shooting head end cover；LED light is fixed on camera front end, provides illumination for control rod guide card video check；Light transmission
Glass is stuck in camera front end by circlip.
When detection, reactor control rod guide card non-destructive testing device camera opening mechanism 2 is mounted on control rod and is led
To in card non-destructive testing device, driving non-destructive testing device is placed in opening mechanism 2 above detected guide card and makes to image
3 opening direction of head module drives 2 double-acting cylinder 2-7 of opening mechanism against tested hole, so that camera is directed at tested hole and starts to examine
It surveys.After having examined a tested hole, non-destructive testing device is rotated by 90 °, and detects another tested hole until 4 tested holes have been examined.It is double
Active cylinder 2-7 is withdrawn, and opening mechanism 2 is made to be contracted to original state, and next guide card is extended under non-destructive testing device and is continued
Detection.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by spirit, should be covered by the protection scope of the present invention.
Claims (6)
1. detection probe opening mechanism in a kind of long and narrow space, it is characterised in that: it includes that side wall is equipped with the support portion of opening, peace
Loaded on the opening mechanism in the support portion and it is connected on the opening mechanism and can stretches out and withdraw from the opening
Camera module, the support portion include the support tube being located above and underlying guide head, the opening mechanism packet
The first connecting rod that at least one set of upper end is articulated with the support tube inside and lower end and the camera module phase hinge is included,
The next setting on first connecting rod described in same group, the opening mechanism further include upper end with respectively and in the first connecting rod
Second connecting rod that portion is hinged, the connecting plate for pushing second liang of bar to act and stretch out or withdraw with the first connecting rod
And the cylinder for driving the connecting plate to move up and down, the lower end of the second connecting rod is hinged with the connecting plate.
2. detection probe opening mechanism in long and narrow space according to claim 1, it is characterised in that: the first connecting rod has
Two groups and the two sides with the camera module are hinged respectively.
3. detection probe opening mechanism in long and narrow space according to claim 1, it is characterised in that: the connecting plate is at L
Type, transverse plate below are mutually fixedly connected with the piston rod of the cylinder, above longitudinal plate slide up and down to and be connected to
In the support portion.
4. detection probe opening mechanism in long and narrow space according to claim 3, it is characterised in that: the cylinder body of the cylinder
In the guide head, the piston rod of the cylinder is located in the support tube, between the transverse plate and the guide head
Equipped with reset tension spring.
5. detection probe opening mechanism in long and narrow space according to claim 1, it is characterised in that: the side of the support tube
Wall is equipped with anti-foreign matter baffle.
6. detection probe opening mechanism in long and narrow space according to claim 1, it is characterised in that: the opening mechanism is also
Including the camera mounting plate being set between the first connecting rod and the camera module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014680.7A CN109192344B (en) | 2018-08-31 | 2018-08-31 | Opening mechanism for detecting probe in long and narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014680.7A CN109192344B (en) | 2018-08-31 | 2018-08-31 | Opening mechanism for detecting probe in long and narrow space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109192344A true CN109192344A (en) | 2019-01-11 |
| CN109192344B CN109192344B (en) | 2023-04-11 |
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ID=64917405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014680.7A Active CN109192344B (en) | 2018-08-31 | 2018-08-31 | Opening mechanism for detecting probe in long and narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109192344B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078955A (en) * | 1989-06-14 | 1992-01-07 | Westinghouse Electric Corp. | Control rod guide tube inspection system |
| CN105810267A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Ultrasonic detection apparatus for intersecting surface of adapter tubes of nuclear reactor pressure vessel |
| CN206409819U (en) * | 2017-01-18 | 2017-08-15 | 上海润品工贸有限公司 | A kind of pipe video detects robot |
| CN207263698U (en) * | 2017-09-27 | 2018-04-20 | 鞍钢股份有限公司 | Circular arc area reflectoscope on a kind of rail head of rail |
-
2018
- 2018-08-31 CN CN201811014680.7A patent/CN109192344B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078955A (en) * | 1989-06-14 | 1992-01-07 | Westinghouse Electric Corp. | Control rod guide tube inspection system |
| CN105810267A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Ultrasonic detection apparatus for intersecting surface of adapter tubes of nuclear reactor pressure vessel |
| CN206409819U (en) * | 2017-01-18 | 2017-08-15 | 上海润品工贸有限公司 | A kind of pipe video detects robot |
| CN207263698U (en) * | 2017-09-27 | 2018-04-20 | 鞍钢股份有限公司 | Circular arc area reflectoscope on a kind of rail head of rail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109192344B (en) | 2023-04-11 |
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