CN202886331U - Internal eddy current detecting clamp - Google Patents
Internal eddy current detecting clamp Download PDFInfo
- Publication number
- CN202886331U CN202886331U CN201220625143.8U CN201220625143U CN202886331U CN 202886331 U CN202886331 U CN 202886331U CN 201220625143 U CN201220625143 U CN 201220625143U CN 202886331 U CN202886331 U CN 202886331U
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- CN
- China
- Prior art keywords
- end cover
- eddy current
- tightly
- support set
- supporting sleeve
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- 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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Abstract
The utility model relates to an internal eddy current detecting clamp, comprising a front end cover and a rear end cover, wherein a supporting sleeve is further arranged between the front end cover and the rear end cover; a holding rubber cylinder is arranged in the supporting sleeve; the outer diameter of the holding rubber cylinder is less than the inner diameter of the supporting sleeve; a ring-shaped sealed cavity is formed between the holding rubber cylinder and the supporting sleeve; the inner diameter of the holding rubber cylinder is slightly more than the diameter of a pipe to be detected; an air inlet and an air outlet are formed in the supporting sleeve; and the front end cover, the supporting sleeve and the rear end cover are connected by a fixing device. The internal eddy current detecting clamp is easy and convenient to operate; with the adoption of the internal eddy current detecting clamp, the assistant person allocation for detecting the internal eddy is reduced, the labor intensity is reduced, and the damage to the surface quality of the pipe likely to cause in an internal eddy detection process is effectively avoided.
Description
Technical field
The utility model relates to a kind of anchor clamps, is specially the interior EDDY CURRENT anchor clamps of U-shaped tubing.
Technical background
Nuclear power steam generator U-shaped pipe carries out interior EDDY CURRENT, will be with the flexible axle of detection probe by special conveyer according to the endoporus of certain speed by the U-shaped pipe, in the process of probe by the U-shaped pipe, the situation of pipe material inner wall is detected.Along with the length longer (the nearly 27m of the maximum length of whole Zhi Guancai) that probe enters the U-shaped pipe, the scope that flexible axle contacts with internal surface of pipe is larger, and its friction force between the two is larger.Especially pop one's head in when the sweep by small-bend radius U-shaped pipe, sending resistance to and can't leaning on that manpower is stable to be eliminated of probe uses mechanical grip instrument commonly used easily the surface quality of tubing to be caused any damage.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of anchor clamps that can effectively protect pipe outer surface, and concrete technical scheme is:
Interior EDDY CURRENT anchor clamps, comprise front end end cover and rear end cap, also has a support set between the two, hold rubber tube in the support set tightly, hold the rubber tube external diameter tightly less than the support set internal diameter, hold tightly and form the sealing toroidal cavity between rubber tube and the support set, hold the caliber that the rubber tube internal diameter is slightly larger than tubing to be measured tightly, air intake opening and venthole are arranged on the support set, connect by stationary installation between front end end cover, support set, the rear end cap.
There is tapering in the inflow point of described internal hole of front end cover, can like a cork pipe end be imported, and can avoid outside surface to be scratched in the time of in tubing inserts anchor clamps.
Rear end cap connects with interior vortex equipment probe guide pipe, tubing to be measured penetrates from internal hole of front end cover, pass again rubber and hold cylinder tightly, when being filled with the pressurized air of certain pressure in the cavity between holding cylinder tightly and support to overlap to rubber, holding rubber tube tightly inwardly expands, thereby hold tubing tightly, reach the purpose of clamping pipe end.Hold rubber tube tightly and by pressurized air the outside surface of tubing is evenly exerted pressure, avoided holding simultaneously cylinder tightly and being manufactured by elastomeric material because adding the inhomogeneous tubing that causes of the power of holding by the possibility of " folder distortion ", can effectively prevent the phenomenon that outer surface of steel tube is scratched.Add and begin to operate interior EDDY CURRENT after holding, detect finish after, the pressurized air pressure release in the cavity is held rubber tube tightly and is shunk, and discharges the power of holding that adds to tubing, and tubing can be extracted out from anchor clamps like a cork.
The interior EDDY CURRENT fixture operation that the utility model provides is easy, has reduced the support personnel configuration of carrying out interior EDDY CURRENT, has reduced labour intensity, has effectively prevented in the interior EDDY CURRENT process infringement that may cause the tube surfaces quality.
Description of drawings
Fig. 1 is cross-sectional view of the present utility model.
Embodiment
Accompanying drawings the technical solution of the utility model embodiment, as shown in Figure 1, interior EDDY CURRENT anchor clamps, comprise front end end cover 1 and rear end cap 3, also has a support set 2 between the two, hold rubber tube 4 in the support set 2 tightly, hold rubber tube 4 external diameters tightly less than support set 2 internal diameters, hold tightly and form the sealing toroidal cavity between rubber tube 4 and the support set 2, hold the caliber that rubber tube 4 internal diameters are slightly larger than tubing to be measured tightly, air intake opening 21 and venthole 22 are arranged on the support set 2, connect by stationary installation between front end end cover 1, support set 2, the rear end cap 3.There is tapering in the inflow point of front end end cover 1 endoporus.
Claims (2)
1. interior EDDY CURRENT anchor clamps, it is characterized in that: comprise front end end cover and rear end cap, also has a support set between the two, hold rubber tube in the support set tightly, hold the rubber tube external diameter tightly less than the support set internal diameter, hold tightly and form the sealing toroidal cavity between rubber tube and the support set, hold the caliber that the rubber tube internal diameter is slightly larger than tubing to be measured tightly, air intake opening and venthole are arranged on the support set, connect by stationary installation between front end end cover, support set, the rear end cap.
2. interior EDDY CURRENT anchor clamps according to claim 1, it is characterized in that: there is tapering in the inflow point of described internal hole of front end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220625143.8U CN202886331U (en) | 2012-11-23 | 2012-11-23 | Internal eddy current detecting clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220625143.8U CN202886331U (en) | 2012-11-23 | 2012-11-23 | Internal eddy current detecting clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886331U true CN202886331U (en) | 2013-04-17 |
Family
ID=48077745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220625143.8U Expired - Lifetime CN202886331U (en) | 2012-11-23 | 2012-11-23 | Internal eddy current detecting clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886331U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142513A (en) * | 2018-09-05 | 2019-01-04 | 中国电建集团山东电力建设第工程有限公司 | Probe drive device and method for threading method EDDY CURRENT outside Cooling Tubes of Condenser |
| CN112858469A (en) * | 2021-01-18 | 2021-05-28 | 杭州意能电力技术有限公司 | Vortex probe clamp device and using method thereof |
| CN113552214A (en) * | 2021-07-28 | 2021-10-26 | 宝武杰富意特殊钢有限公司 | Method for ensuring rotary ultrasonic detection reliability of round bar |
-
2012
- 2012-11-23 CN CN201220625143.8U patent/CN202886331U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142513A (en) * | 2018-09-05 | 2019-01-04 | 中国电建集团山东电力建设第工程有限公司 | Probe drive device and method for threading method EDDY CURRENT outside Cooling Tubes of Condenser |
| WO2020047961A1 (en) * | 2018-09-05 | 2020-03-12 | 中国电建集团山东电力建设第一工程有限公司 | Probe driving device and method for condenser cooling pipe outside-in penetrating-type eddy current detection |
| CN109142513B (en) * | 2018-09-05 | 2023-10-24 | 中国电建集团山东电力建设第一工程有限公司 | Probe driving device and method for vortex detection by condenser cooling pipe external penetration method |
| CN112858469A (en) * | 2021-01-18 | 2021-05-28 | 杭州意能电力技术有限公司 | Vortex probe clamp device and using method thereof |
| CN112858469B (en) * | 2021-01-18 | 2024-06-07 | 杭州意能电力技术有限公司 | Clamp device for eddy current probe and application method of clamp device |
| CN113552214A (en) * | 2021-07-28 | 2021-10-26 | 宝武杰富意特殊钢有限公司 | Method for ensuring rotary ultrasonic detection reliability of round bar |
| CN113552214B (en) * | 2021-07-28 | 2024-06-07 | 宝武杰富意特殊钢有限公司 | Method for ensuring reliability of rotary ultrasonic detection of round bar |
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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: 20130417 |