CN201476744U - Reactor core barrel flange surface through hole aperture precision measuring device - Google Patents
Reactor core barrel flange surface through hole aperture precision measuring device Download PDFInfo
- Publication number
- CN201476744U CN201476744U CN2009201679090U CN200920167909U CN201476744U CN 201476744 U CN201476744 U CN 201476744U CN 2009201679090 U CN2009201679090 U CN 2009201679090U CN 200920167909 U CN200920167909 U CN 200920167909U CN 201476744 U CN201476744 U CN 201476744U
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- CN
- China
- Prior art keywords
- flange surface
- reactor core
- core barrel
- tool body
- barrel flange
- 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
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model relates to a special tool for accurately measuring the diameter of the mounting hole of reactor core barrel flange surface radiation monitoring pipe in pressurized water reactor nuclear power plant, in particular to a reactor core barrel flange surface through hole aperture precision measuring device, which comprises a tool body, a positioning head at the head of the tool body, and a plurality of concentric cylinders which are distributed from the positioning head on the tool body, with gradually increased diameters. The diameter of the positioning head is smaller than the tool body. The diameter difference between each two adjacent concentric cylinders of the tool body is 0.5mm or 1mm. The reactor core barrel flange surface through hole aperture precision measuring device has simple and compact structure, thus realizes remote operation easily, to prevent controllers from radiation. The reactor core barrel flange surface through hole aperture precision measuring device has simple structure, thus makes operation and maintenance easy to reduce measurement time. And the reactor core barrel flange surface through hole aperture precision measuring device can realize accurate measurement on the aperture of mounting hole of reactor core barrel flange surface radiation monitoring pipe.
Description
Technical field
The utility model belongs to the specific purpose tool that PWR nuclear power plant reactor bracketplant flange face irradiation monitoring pipe mounting hole diameter is accurately measured, and is specifically related to a kind of reactor bracketplant flange face through-hole aperture device for accurately measuring.
Background technology
Nuclear power plant have a lot of equipment be have highly radioactive, water is shielded, this has just determined a lot of apparatuss of nuclear power plant all must carry out the installation, maintenance operation under water, in case be damaged, its upkeep operation also must be finished under water, but also be under the high radioactivity environment, to carry out, this has proposed new requirement to Work tool and the measurement mechanism that uses in the maintenance process.Just need the instrument that the aperture of reactor bracketplant flange face irradiation monitoring pipe mounting hole is measured in the process that the irradiation pipe holder is changed, this instrument must satisfy: Long-distance Control, underwater operation, anti-irradiation, high measurement accuracy.
Summary of the invention
The purpose of this utility model is to provide a kind of can carry out operated from a distance, radiotolerant high-precision reactor bracketplant flange face through-hole aperture device for accurately measuring.
The utility model is achieved in that reactor bracketplant flange face through-hole aperture device for accurately measuring, and it comprises tool body, is provided with positioning head at the head of tool body, and tool body begins to be made of the concentric cylinder that diameter increases gradually from positioning head.
The diameter of positioning head is less than the diameter of tool body.
The difference in diameter of the adjacent concentric cylinder of described tool body is 0.5mm or 1mm.
The utility model has the advantages that,, accept radiation dose for the control personnel and be very helpful because it relatively simple for structurely small and exquisitely can realize remote-controlled operation easily; And since simple in structure, be beneficial to Operation and Maintenance, can save the measuring phases duration; Can realize long-range reactor bracketplant flange face irradiation monitoring pipe mounting hole aperture accurately being measured.
Description of drawings
Fig. 1 is a reactor bracketplant flange face through-hole aperture device for accurately measuring synoptic diagram provided by the utility model.
Among the figure, 1 tool body, 2 positioning heads, 3 steps.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
As shown in Figure 1, reactor bracketplant flange face through-hole aperture device for accurately measuring, it comprises tool body 1, tool body 1 is columned long solid bar, head at tool body 1 is the positioning head 2 littler than body diameter, the effect of positioning head 2 is to make things convenient in the hole that its insertion will measure, tool body 1 constitutes from the concentric cylinder that positioning head 2 beginnings are increased gradually by diameter, form step 3 at two cylindrical joints, each cylindrical diameter is pre-set, and can demarcate thereon, the value that the diameter of two adjacent concentric cylinders differs can be 0.5mm, 1mm or other value, concrete condition can be determined according to the size and the desired measuring accuracy in measured hole.
The utility model in use, can connect by using the long handle instrument, the use Underwater Camera monitors, insert it into reactor bracketplant flange face irradiation monitoring pipe mounting hole, whether put in place with video camera observation under water, in the time of in this measurement mechanism is stuck in measured hole, the cylindrical diameter that is blocked is the aperture value of this tested metering-orifice.
Claims (3)
1. reactor bracketplant flange face through-hole aperture device for accurately measuring, it is characterized in that: it comprises tool body (1), head at tool body (1) is provided with positioning head (2), and tool body (1) constitutes from the concentric cylinder that positioning head (2) beginning is increased gradually by diameter.
2. reactor bracketplant flange face through-hole aperture device for accurately measuring as claimed in claim 1, it is characterized in that: the diameter of positioning head (2) is less than the diameter of tool body (1) body.
3. as reactor bracketplant flange face through-hole aperture device for accurately measuring as claimed in claim 1 or 2, it is characterized in that: the difference in diameter of the adjacent concentric cylinder of described tool body (1) is 0.5mm or 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201679090U CN201476744U (en) | 2009-08-03 | 2009-08-03 | Reactor core barrel flange surface through hole aperture precision measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201679090U CN201476744U (en) | 2009-08-03 | 2009-08-03 | Reactor core barrel flange surface through hole aperture precision measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476744U true CN201476744U (en) | 2010-05-19 |
Family
ID=42412994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201679090U Expired - Lifetime CN201476744U (en) | 2009-08-03 | 2009-08-03 | Reactor core barrel flange surface through hole aperture precision measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476744U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976940A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Detection tool for detecting internal diameter of circular ting type work piece |
| CN112097601A (en) * | 2019-06-18 | 2020-12-18 | 成都飞机工业（集团）有限责任公司 | Aperture size measuring device and measuring method |
| CN112484677A (en) * | 2020-11-13 | 2021-03-12 | 本田金属技术（佛山）有限公司 | Device for detecting position degree of side hole of automobile steering knuckle |
-
2009
- 2009-08-03 CN CN2009201679090U patent/CN201476744U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976940A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Detection tool for detecting internal diameter of circular ting type work piece |
| CN112097601A (en) * | 2019-06-18 | 2020-12-18 | 成都飞机工业（集团）有限责任公司 | Aperture size measuring device and measuring method |
| CN112484677A (en) * | 2020-11-13 | 2021-03-12 | 本田金属技术（佛山）有限公司 | Device for detecting position degree of side hole of automobile steering knuckle |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |