CN202145359U - Expanding joint test apparatus - Google Patents
Expanding joint test apparatus Download PDFInfo
- Publication number
- CN202145359U CN202145359U CN201120168682U CN201120168682U CN202145359U CN 202145359 U CN202145359 U CN 202145359U CN 201120168682 U CN201120168682 U CN 201120168682U CN 201120168682 U CN201120168682 U CN 201120168682U CN 202145359 U CN202145359 U CN 202145359U
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- CN
- China
- Prior art keywords
- frustum
- expanding joint
- test apparatus
- joint
- expanding
- 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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Abstract
The utility model relates to the nuclear power field, particularly to an expanding joint test apparatus. The expanding joint test apparatus is divided into an outer layer and an inner layer, with the central section being a frustum composed of two pieces. The frustum center simulates the size of the tube plate in actual expanding joint. After expanding joint, the frustum will be knocked out, thereby allowing visual observation of the joint situation after expanding joint. The expanding joint is based on the principle that: heat exchange tube produces plastic deformation while the tube plate at the outboard produces elastic deformation. After expanding joint is finished, the heat exchange tube is knocked out. The expanding joint test apparatus can be frequently used. The heat exchange tube of different sizes can be continuously used as long as the central frustum is replaced.
Description
Technical field
The utility model relates to the nuclear power field, concretely, relates to a kind of expanded joint test unit.
Background technology
The tube-to-tube sheet connection expanded joint need be done the expanding joint process evaluation, and a new product is also needed the workman is giveed training, as press standard practice, no matter be the worker training, or the expanding joint process test all need a large amount of tube sheets, the nuclear grade stainless steel material price is very expensive; The pore size tolerance requirements is strict, and processing charges is also high, and cost will be very big.
Summary of the invention
To above-mentioned technical matters, the utility model provides a kind of expanded joint test unit, and the use of this device can be practiced thrift cost, increased work efficiency.
The utility model is made up of two eye plates and a frustum, and a frustum is positioned at the centre of two eye plates, and the size of tube sheet when actual expanded joint is simulated at the frustum center after expanded joint is accomplished, is pounded out frustum, can very intuitively see the applying situation behind the expanded joint.
Described frustum is changed according to the heat exchanger tube of different size.
The advantage of the utility model is: two-layer inside and outside this device integral body is divided into, the centre is the frustum of two compositions, and the size of tube sheet when actual expanded joint is simulated at the frustum center after expanded joint is accomplished, is pounded out frustum, can very intuitively see the applying situation behind the expanded joint.The principle of expanded joint is that heat exchanger tube produces plastic yield, and the tube sheet in the outside produces elastic deformation, and expanded joint after accomplishing is pounded out heat exchanger tube, and this device can also be reused.For size different heat exchange pipe,, also can continue to use as long as the frustum of centre is changed.
Description of drawings
Accompanying drawing 1 is a kind of structural representation sketch of expanded joint test unit.
Wherein 1 is that eye plate, 2 is frustum.
Embodiment
The utility model is made up of two eye plates 1 and a frustum 2; A frustum 2 is positioned at the centre of two eye plates 1, and the size of tube sheet when actual expanded joint is simulated at frustum 2 centers is after expanded joint is accomplished; Frustum 2 is pounded out, can very intuitively be seen the applying situation behind the expanded joint.
Described frustum 2 is changed according to the heat exchanger tube of different size.
The advantage of the utility model is: two-layer inside and outside this device integral body is divided into, the centre is the frustum 2 of two compositions, and the size of tube sheet when actual expanded joint is simulated at frustum 2 centers after expanded joint is accomplished, is pounded out frustum 2, can very intuitively see the applying situation behind the expanded joint.The principle of expanded joint is that heat exchanger tube produces plastic yield, and the tube sheet in the outside produces elastic deformation, and expanded joint after accomplishing is pounded out heat exchanger tube, and this device can also be reused.For size different heat exchange pipe,, also can continue to use as long as the frustum 2 of centre is changed.
Claims (1)
1. expanded joint test unit is characterized in that: be made up of two eye plates and frustum, a frustum is positioned at the centre of two eye plates, the size of tube sheet when actual expanded joint is simulated at the frustum center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120168682U CN202145359U (en) | 2011-05-25 | 2011-05-25 | Expanding joint test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120168682U CN202145359U (en) | 2011-05-25 | 2011-05-25 | Expanding joint test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202145359U true CN202145359U (en) | 2012-02-15 |
Family
ID=45581289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120168682U Expired - Lifetime CN202145359U (en) | 2011-05-25 | 2011-05-25 | Expanding joint test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202145359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935124A (en) * | 2015-12-30 | 2017-07-07 | 中核北方核燃料元件有限公司 | A kind of expanded joint test tool |
-
2011
- 2011-05-25 CN CN201120168682U patent/CN202145359U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935124A (en) * | 2015-12-30 | 2017-07-07 | 中核北方核燃料元件有限公司 | A kind of expanded joint test tool |
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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 |
Granted publication date: 20120215 |
|
| CX01 | Expiry of patent term |